• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An angle encoder includes a housing and a rotor, the housing being provided with a receiving cavity which receives the rotor; the rotor being constrained to rotate within the receiving cavity, the rotor being provided with magnetic means that rotate with the rotor; wherein an outside of the housing is provided with detection means for detecting a change in magnetic field when the magnetic means rotates and for generating an angle detection signal for the rotation of the rotor; wherein a groove for movement in contact with an inside end portion of the rotor is provided on an inner sub-portion of the receiving cavity, a limiting groove being provided along a lower groove edge in the groove for movement; a limit pin is provided on an end portion of the rotor, the limit pin being inserted into the limit groove to limit an angle of rotation of the rotor. The angle encoder of the present disclosure uses a Hall detection unit as a detection element to detect magnetic field changes of the magnetic agent rotating with the rotor; with a restriction groove formed on the inner subsection of the receiving cavity, rotation angles of the rotor being limited; by changing the orientation and the angle of the limiting groove, different requirements with regard to the angle of rotation can be met.
    公开号:BE1026610B1
    申请号:E20170120
    申请日:2017-09-05
    公开日:2020-04-14
    发明作者:Chun Xiao；Jiacheng Zhou
    申请人:Tyco Electronics Shanghai Co；
    IPC主号:
    专利说明:

    Field of the Invention The present disclosure relates to an encoder, and more particularly, to an angle encoder for a vehicle brake pedal.
    Background of the Invention Angle encoders have been widely used in various industrial fields, e.g. B. for detecting changes in angle of an accelerator pedal, a brake pedal or a clutch pedal in a vehicle control system.
    In the prior art, there are two types of sensors for reflecting changes in angle of an axis of rotation: a sliding resistance type angle encoder that generates electrical signals that vary with the angles; and a non-contact permanent magnet linear displacement sensor (PLCD). However, neither of these two types of sensors can adapt to the evolution of new products and new technologies and they cannot meet the requirements for low cost, linear output, low wear and high precision.
    Summary of the Invention In order to solve the above technical problems, one of the objects of the present disclosure is to provide a Hall type angle encoder which is characterized by low cost, linear output, low wear and high precision, and the different angle requirements from customers, The specific technical solution is provided below.
    An angle encoder that includes:
    A housing which is provided with a recessed cavity;
    A rotor limited to rotate within the receiving cavity, a limiting pin being provided at an end portion of the rotor;
    A magnetic means that is secured to the rotor and rotates with the rotor, within the receiving cavity;
    BE2017 / 0120 an elastic part, which is arranged between the rotor and the housing, for providing elasticity to cause the rotor to return to the starting position; and a detection means, which is fixed relative to the housing, for detecting a
    Magnetic field change when the magnetic medium rotates and generate one
    Angle detection signal for the rotation of the rotor; wherein the receiving cavity includes a groove for movement which is arranged to receive the end portion of the rotor; and a restriction groove arranged to receive the restriction pin at the end portion of the rotor to limit an angle of rotation of the rotor.
    In one embodiment of the angle encoder, a groove edge is provided which protrudes from a subsection of the receiving cavity; and a support surface is provided on an inside end surface of the rotor, and an upper end surface of the groove edge supports the support surface to an axial position of the
    Limit rotor.
    In one embodiment of the angle encoder, a limiting block is provided which protrudes from a subsection of the receiving cavity, and the limiting block is provided with a limiting surface to limit a range of rotation of the rotor. In one embodiment of the angle encoder, the limiting block is an egg-shaped delimitation block; and a radial inside surface of the C-shaped restriction block is mounted on an outside surface of an inside end portion of the rotor with a sliding fit so as to limit a radial position of the rotor.
    In one embodiment of the angle encoder, a part of an inner side surface of the groove edge is mounted on the limiting pin of the rotor with a sliding fit so as to limit the radial position of the rotor.
    In one embodiment of the angle encoder, two lateral sides of the limiting pin have a contact surface;
    When the inside end portion of the rotor into the groove for movement
    BE2017 / 0120 is inserted, the limit pin is inserted into the limit groove; and the boundary surface is in contact with the boundary surface of the boundary pin
    Engagement to limit a rotation angle range of the rotor, in one embodiment of the angle encoder, the rotor includes a disk;
    and an outer diameter of the disc is identical to an inner diameter of the receiving cavity and an outer periphery of the disc is bonded to an inner wall of the receiving cavity to limit a radial position of the rotor. In one embodiment of the angle encoder, the support surface is on an axial
    Provided inside of the disc, In one embodiment of the angle encoder, a snap mounting groove is provided on an outer circumference of the disc and a snap mounting feature is provided on each side of the snap mounting groove, for snap mounting a snap mounting hook which is provided on the elastic part; and a notch is provided on an inside edge of the receiving cavity for snap-mounting a fixed pin attached to the elastic member. In one embodiment of the angle encoder, the elastic member is a torsion spring, one end of the torsion spring having a Positioning pin is provided, the other end of which is provided with the snap mounting hook.
    The snap mounting hook of the torsion spring is mounted on the snap mounting feature on either side of the snap mounting groove with a snap fit; the fixed pin at the other end of the torsion spring is caught in the notch so that the rotor rotates back to the starting position along a direction of the torque provided by the torsion spring.
    In one embodiment of the angle encoder, the disc is provided with a plurality of spokes on one side of an outer end of the rotor, the spokes increasing the thickness and strength of the disc, thereby improving the rotational stability of the rotor.
    BE2017 / 0120 [0029] In one embodiment of the angle encoder, the elastic part is a torsion spring;
    An annular cavity for attaching the torsion spring is arranged between an outer wall of the groove edge and an inner wall of the receiving cavity.
    In one embodiment of the angle encoder, the inside end portion of the rotor is provided with a receiving groove in which the magnetic means is attached.
    The angle encoder also includes the following:
    A cap, a circular hole provided at a center of the cap;
    A circular supporting part, which is provided at the outer end of the rotor, the supporting part being encased in the circular hole on the cap.
    [0036] In one embodiment :; form of the angle encoder, an outer end face is provided at an opening of the receiving cavity and abuts the cap;
    A lower side of the cap extends to form a lower edge for abutting against a bearing surface on an outside of the rotor so as to limit an axial position of the rotor.
    [0038] In one embodiment of the angle sensor, the detection means is a Hall detection unit.
    [0039] A second object of the present disclosure is to provide a further angle encoder, which includes:
    A housing which is provided with a receiving cavity;
    A rotor limited to rotate within the receiving cavity, a limiting pin being provided at an end portion of the rotor;
    A magnetic means that is secured to the rotor and rotates with the rotor within the receiving cavity;
    An elastic member connected between the housing and the rotor for providing elasticity to cause the rotor to enter the
    BE2017 / 0120
    Starting position goes back;
    Detection means secured to the housing for detecting a change in magnetic field when the magnetic means rotates and for generating an angle detection signal for the rotation of the rotor; and a restriction block provided protruding from a sub-portion of the receiving cavity, the restriction block having restriction surfaces to limit a rotation range of the restriction pin on the rotor.
    The angle encoder is characterized in that the positions of the boundary surfaces on the boundary block correspond to a direction of rotation of the rotor, a stait point angle Θ, a maximum permissible angle of rotation α and an included angle of the boundary pin on the rotor.
    [0048] In one embodiment of the angle encoder, one of the boundary surfaces on the boundary block is provided as the starting point of the rotor, the position angle unk of the starting point being as follows:
    B = β-a / 2; and [0050] the open angle σ between the boundary surfaces is as follows:
    [0051] σ = γ-α.
    In one embodiment of the angle encoder, the following is present:
    [0053] When the angle encoder is working, the rotor rotates counterclockwise relative to the housing.
    In one embodiment of the angle encoder, a Rilienkante is provided, which protrudes from the subsection of the receiving cavity; and a support surface is provided on an inside end surface of the rotor and an upper end surface of the groove edge supports the support surface, thereby to limit an axial position of the rotor.
    [0056] In one embodiment of the angle encoder, the rotor includes a disk; and [0057] is an outer diameter of the disc with an inner diameter of the
    BE2017 / 0120 receiving cavity identical and an outer periphery of the disc is bonded to an inner wall of the receiving cavity, thereby limiting a radial position of the rotor.
    In one embodiment of the angle encoder, the support surface is provided on an axial inside of the disc.
    In one embodiment of the angle encoder, a snap mounting groove is provided on an outer circumference of the disk and a snap mounting feature is provided on two sides of the snap mounting groove, for snap mounting a snap mounting hook, which is provided on the elastic part; and a notch is provided on an inside edge of the receiving cavity for snap-fitting a fixed pin attached to the elastic member.
    In one embodiment of the angle encoder, the elastic part is a torsion spring, one end of the torsion spring being provided with a positioning pin, the other end of which is provided with the snap mounting hook.
    The snap mounting hook of the torsion spring is mounted on the snap mounting feature on either side of the snap mounting groove with a snap fit; the fixed pin at the other end of the torsion spring is caught in the notch so that the rotor rotates back to the starting position along a direction of the torque provided by the torsion spring.
    In one embodiment of the angle encoder, the disk is provided with a plurality of spokes on one side of the outer end of the rotor, the spokes increasing the thickness and strength of the disk in order to improve the rotational stability of the rotor.
    In one embodiment of the angle encoder, the elastic part is a torsion spring;
    An annular cavity for attaching the torsion spring is disposed between an outer wall of the groove edge and an inner wall of the receiving cavity.
    [0066] In one embodiment of the angle transmitter, the inside end section is
    BE2017 / 0120 of the rotor with a receiving groove in which the magnetic means is attached.
    The angle encoder also includes the following:
    [0068] a cap, a circular hole provided at a center of the cap;
    A circular supporting part, which is provided at the outer end of the rotor, the supporting part being encased in the circular hole on the cap. In one embodiment of the angle encoder, an outer end surface is provided at an opening of the receiving cavity and lies on the Cap on;
    A lower side of the cap extends to form a lower edge to abut a mating surface on an outside of the rotor so as to limit an axial position of the rotor.
    [0073] In one embodiment of the angle encoder, the detection means is a Hall detection unit.
    The angle encoder of the present disclosure uses a Hall detection unit as a detection element to detect magnetic field changes of the magnetic agent that rotates with the rotor; with a restriction groove formed on the inner subsection of the receiving cavity, rotation angles of the rotor being limited; by changing the orientation and the angle of the limiting groove, different customer requirements regarding the angle of rotation can be satisfied; and wherein the rotor rotates stably by constructing a rotor with boat-shaped multi-layer contact surfaces and the output signal becomes linear and precise.
    Brief Description of the Figures Figure 1A is a schematic illustration of a front structure of an angle encoder of the present disclosure;
    1B is a schematic illustration of a rear structure of an angle encoder of the present disclosure;
    Figure 2 is a structural representation of a receiving cavity of the
    BE2017 / 0120 present disclosure;
    Figure 3A is a structural representation of one side of a
    Inside end portion of a rotor of the present disclosure;
    Figure 3B is a structural representation of one side of a
    Inside end portion of a rotor of the present disclosure; ·:
    4 is a structural illustration of a torsion spring of the present disclosure;
    5 is a structural exploded view of an angle encoder of the present disclosure;
    6A-6C are schematic diagrams showing an assembly process of an angle encoder;
    7A-7B are structural representations of an embodiment of an angle encoder.
    Detailed Description of the Embodiments Various preferred embodiments of the present disclosure will be described below with reference to the accompanying drawings as part of the description. It is noted that, although terms indicating directions (such as "forward," back, "up," down, "left and" right ") are used herein to refer to various exemplary structural parts and elements of the present disclosure describe, these terms are only for the convenience of illustration, which are determined based on the exemplary orientations shown in the drawings. Because the embodiments disclosed in the present disclosure may be arranged based on different directions, these directional terms are used for illustration only and should not be construed as limiting. In possible cases, the same or similar reference numerals used herein indicate the same components.
    Figure 1A is a schematic illustration of a rear structure of an angle encoder of the present disclosure; and FIG. 1B is a schematic illustration of a rear structure of an angle encoder of the present disclosure.
    BE2017 / 0120 As shown in FIG. 1A, a structure of the encoder 100 mainly includes a housing 101 made of plastic [or other material], a rotor 102 accommodated in the housing, and a cap 503. The housing 101 is with a receiving cavity 201 opened to one side (see FIG. 2). The rotor 102 is inserted into the receiving cavity 201 and sealed and pressed into the receiving cavity 201 by the cap 503 (not shown in FIG. 1A but shown in FIG. 5) so as to rotate therein. A center of the outer end of the rotor 102 is provided with an insertion hole 107 which is connected to an axis of rotation of an accelerator pedal (or a brake pedal, a clutch pedal). The angle of rotation of the accelerator pedal corresponds exactly to the angle of rotation of the rotor 102.
    In Fig. 1B, on the other side of the housing 101, a PCBA plate in the housing is sealed and pressed with adhesive 106 (see Fig. 5), and on the PCBA plate is a Hall detection chip (see Fig. 5 ) intended. Nut mounting holes 104, 108 are provided on both sides of the housing 101. The housing 101 is secured to the vehicle body with a bolt (or other means) that is screwed through the nut mounting holes 104, 108. As shown in Figs. 6B, 6C and 7A, centers of these two nut mounting holes 104, 108 define a rotation angle reference line for directly or indirectly determining a starting point angle θ and a maximum allowable rotation angle a ° of the rotor 102 of the angle encoder (see Fig. 6B).
    FIG. 2 is a structural illustration of a receiving cavity of the present disclosure.
    As shown in Fig. 2, is a housing 101 with a receiving cavity
    201 to one side, for receiving a rotor 102, opened, in the example shown in the figure, the receiving cavity 201 has a cylindrical shape. A subsection of the receiving cavity 201 has a groove for movement
    202, with a slightly smaller inner diameter, and the groove for movement 202 has a protruding groove edge 207, whereby an annular groove is formed, an upper end surface of the annular groove supporting a support surface 303 of the rotor 102 (see FIG. 3A), to reach the axial position of the rotor 102.
    BE2017 / 0120 A limit block 205 is provided on an inside of the groove for movement 2Q2. In a preferred embodiment of the present disclosure, the restriction block 205 has a “C” shape (the present disclosure is not limited to a ._.. ,, C-shaped restriction block), is a radial inside surface of the restriction block 205 at an inside end portion of the rotor 102 (ie, a groove edge outside of a receiving groove 307) with a clearance fit to limit a radial position of the rotor 102. A portion of the inside surface of the groove edge 207 of the groove for movement 202 is mounted with a limit pin 302 of the rotor 102 to facilitate limiting the radial position of the rotor 102.
    A boundary surface (205/1, 205.2) is provided in each case on two end sections of the boundary block 205; a restriction groove 203 is formed between the two restriction surfaces (205.1, 205.2) for mounting with the restriction pin 302 attached to the inside end portion of the rotor 102 to limit a rotation angle range of the rotor 102.
    [0092] An outer end surface 209 of the annular wall of the receiving cavity is mounted with the cap 503. A lower edge 515 (see FIG. 5) is provided on the cap 503 for mounting with an annular angular surface 311 on an outside of the rotor 102, thereby accomplishing the limitation of an axial position of the rotor 102.
    An annular cavity 210 between an annular inner wall of the receiving cavity 201 and an outer wall of the groove for movement 202 is arranged to attach a torsion spring 400 (see FIG. 6A). A notch 204 is provided on an inside edge of the receiving cavity 201 for catching a fixing pin 401 (see FIG. 4) at one end of the torsion spring 400.
    3A is a structural illustration of one side of an inner end portion of a rotor of the present disclosure.
    3A shows an inner end side of the rotor 102 inserted into the receiving cavity 201; and FIG. 3B shows an outer end side of the rotor 102 after the rotor has been inserted into the accommodating cavity 201. From these two figures it can be seen that the rotor 102 as a whole takes the form of a boat,
    BE2017 / 0120 which is smaller at two ends while being larger in the middle along an axial direction, forming a laminated multi-layer overlapped configuration. The rotor 102 with such a shape and configuration rotates stably.
    From the inner end side of FIG. 3A, it can be seen that a radial outer side of the inner side end section 301 of the rotor 102 is provided with a limiting pin 302, with two lateral sides of the limiting pin 302 having contact surfaces
    302.1 and 302.2 are provided. When the rotor 102 is inserted down to a subsection of the receiving cavity 201, the inside end portion 301 of the rotor 102 is inserted into the groove for movement 202 and the limit pin 302 is inserted into the limit shaft 203. When the rotor 102 rotates due to the interaction between the contact surfaces 302.1 and 302.2 and the boundary surfaces
    205.1 and 205.2, the rotor 102 can only rotate within an angular range which is delimited by the boundary surfaces 205.1 and 205.2. By changing the orientation of the boundary line 203 and / or the distance between the boundary surfaces 205.1 and 205.2, the rotation angle range of the rotor 102 can be changed.
    An end surface of the inside end portion 301 of the rotor 102 is provided with a receiving groove 307 in which the magnetic agent 508 (shown in Fig. 5) is received. The magnetic means 508 rotates within the receiving cavity 201 with the rotor 103.
    A support surface 303 is provided next to the inside end portion 301 of the rotor 102 and the limit pin 302; the support surface 303 is in contact with the groove edge 207 of the groove for movement 202 so that an axial position of the rotor can be limited. Since the groove edge of the groove for movement 202 has a relatively narrow width, the contact area between the support surface 303 and the groove for movement 202 is also relatively small, which makes it easier to reduce the friction between the rotor 102 and the subsection of the receiving cavity 201, so that the rotor 102 rotates more smoothly.
    A layer configuration below the support surface 303 is a disc 304. An outer diameter of the disc 304 is identical to the inner diameter of the receiving cavity 201, so that the rotor 102 is easy in the receiving
    BE2017 / 0120
    Cavity 201 is embedded, thereby limiting the radial position and vibratory amplitude of rotor 102 as it rotates. In this way, the rotor 102 is stably mounted inside the accommodating cavity 201 without shaking during rotation, and a sensor can output stably detected signals with good linearity. An outer periphery of the disk 304 is provided with a snap mounting groove 305; a snap assembly feature 305.1 or 305.2 is provided on both sides of the snap assembly groove 305. One end of the torsion spring 400 is provided with a positioning pin 401 [see FIG. 4], which is snap-fitted onto a notch 204 attached to an inside edge of the receiving cavity 201, the other end of the torsion spring 400 is a hook-shaped snap mounting hook 402 which is hooked on the snap mounting feature 305.1 or 305.2. After the rotor 102 has rotated through a certain angle, the torsion spring 400 provides a rotational force which causes the rotor to rotate back to the starting position. According to a preferred embodiment of the present disclosure, the snap assembly feature 305.1 or 305.2 can be mounted on two sides of the snap assembly groove 305 with the appropriately configured torsion spring 400 to provide torque to cause the rotor to rotate back to the home position in two directions: im Clockwise and counterclockwise.
    3B is a structural illustration of one side of an inner end portion of a rotor of the present disclosure.
    As shown in Fig. 3B, an outer end side of the rotor 102 is provided with an annular support surface 308 outside the disc 304; the annular support surface 308 is provided with a plurality of spokes 312. Spokes 312 can increase the thickness and strength of disc 304 to prevent deflection when rotor 102 rotates. A lower portion of the cap 503 (see FIG. 5) has an annular structure that interacts with the annular support surface 308 outside the rotor 102, thereby accomplishing the axial confinement of the rotor 102 so that the rotor 102 is within the receiving cavity 301 rotates more stably, thereby satisfying the high-precision signal output requirement.
    BE2017 / 0120 A center of the outer end of the rotor 102 is provided with an insertion hole 107 connected to an axis of rotation of the accelerator pedal (or brake pedal or clutch pedal) so as to drive the rotor 102 to rotate when the Accelerator pedal rotation axis rotates. An outer wall of the insertion hole 107 is a circular supporting part 311.
    4 is a structural illustration of a torsion spring of the present disclosure.
    As shown in Fig. 4, one end of a torsion spring 400 is provided with a positioning pin 401 which is snap-fitted in a notch 204 which is mounted on a side wall of the receiving cavity 201. The other end of the torsion spring 400 is one hook-shaped snap mounting hook 402 mounted on the snap mounting feature 305.1 or 201 on either side of the snap mounting groove 305 of the snap fit disc 304. It will be appreciated that the structural configuration of the torsion spring 400 shown in Figure 4 corresponds to the rotor with a specific direction of rotation When the direction of rotation of the rotor 102 is configured reversely, the edge direction of the torsion spring 400 and the orientation of the snap mounting hook 402 are configured reversely accordingly so as to match the other of the snap mounting features 30S.1 and 305.2 on two sides of the snap mounting groove 305 of the rotor 102.
    Figure 5 is a structural, exploded view of a
    Angle encoder of the present disclosure.
    As shown in FIG. 5, the angle encoder includes, sequentially, from bottom to top, a PCBA plate 502 and a Hall chip S07 on the PCBA plate 502, a housing 101, a torsion spring 400, a magnetic means 508 , a rotor 102 and a cap 503. A center of the cap 503 is provided with a circular hole 513 and a lower side of the cap 503 extends to form a circular lower edge 515. The circular hole 513 is arranged to receive a supporting part 311 of the rotor 102. Here, the hall chip 507 is attached to the PCBA plate 502 and on one side of the housing 101 by means of adhesive 501 or another
    BE2017 / 0120
    Encapsulation element encapsulated, the cap 103 is arranged for encapsulating the rotor 102, the torsion spring 400 and the magnetic means 508 in the receiving cavity 201 of the housing 101.
    The Hall chip 507 detects a magnetic field signal that indicates the movement of the magnetic means 508. The positional deflection, lateral displacement, or unstable rotation of the magnetic means 508 will cause irregular changes in the magnetic field, and the motion signals detected by the Hall chip 507 will be unstable; the present disclosure employs various structures to limit the radial, axial and rotational positions of the rotor 102 with the purpose of improving the rotational and positional stability of the rotor 102 so that the magnetic field signals generated by the magnetic means 508 are stable and those by the Signals recorded by means of detection are output in a stable, precise and linear manner.
    6A-6C are schematic diagrams showing an assembly process of an angle encoder.
    As shown in Fig. 6A, when mounting an angle encoder 100, a torsion spring 400 is first installed in an annular cavity 210 within an accommodating cavity 201; a positioning pin 401 of the torsion spring 400 is snap-fitted onto a notch 204 that is attached to a side wall of the receiving cavity 201.
    As shown in Fig. 6B, a rotor 102 is inserted into the receiving cavity 201; a snap mounting hook 402 at the other end of the torsion spring 400 is mounted on the snap mounting feature 305.1 of the snap mounting groove 305 of the disc 304 of the rotor 102 with a snap fit. When the torsion spring 400 is in a free state, the angle of the rotor 102 is δ.
    As shown in Fig. 6C, the rotor 102 is rotated counterclockwise to a predetermined initial angle θ; at this point, torsion spring 400 rotates counterclockwise by an angle δ - θ from the free state in Fig. 6B, thereby providing a biasing force that can drive rotor 102 to rotate clockwise.
    7A-7B are structural representations of an example of a
    BE2017 / 0120
    Angle encoder.
    [00116] Since practical applications (e.g. different vehicle types, different pedal types) of encoders have different requirements, a conventional encoder cannot be adapted to the requirements regarding different angles of rotation in so many usage environments. The present disclosure provides an angle encoder 100 that practically satisfies different rotation requirements, e.g. B. Usage requirements for a size of the rotation angle, a start / end position of rotation, etc. For example, a maximum rotation angle of the rotor 102 when the angle encoder 100 is operating can cooperatively by a size of the open angle of the limiting groove 203 and / or Limiting blocks 205 (ie the included angle between the two limiting surfaces 205.1, 205.2) and the included angle of the limiting pin 302 can be determined. For example, the rotation start / rotation end position of the angle encoder 100 can be determined by the positions and angles of the two end section boundary surfaces 205.1 and 205.2 of the boundary groove 203 and / or the boundary block 205.
    In the angle sensor 100 shown in FIGS. 7A and 7B, γ indicates an open angle of the limiting groove 203 and / or the limiting block 205 in the housing 101 and ß indicates an angle between the start / end point of rotation of the limiting groove 203 and / or the Limiting blocks 205 on. In one example of the present disclosure, angle encoder 100, in use, requires its rotor 102 to rotate counterclockwise with an object; the starting point angle 0 = 7 °; a straight line defined by the centers of the two nut mounting holes 104, 108 on the encoder is an angular reference line. The maximum permissible angle of rotation α of the rotary encoder when used corresponds to 120 °. In addition, the included angle σ of the limiting pin 302 on the rotor 102 corresponds to 30 °. The corresponding starting angle β and opening angle γ of the limiting groove 203 and / or of the limiting block 205 within the angle encoder housing 101 are then:
    β = θ * a / 2 = 7 ° + 30 ° / 2 = 22 °;
    BE2017 / 0120 y-σ + œ = 30 ° + 120 ° = 150 °, wherein the starting angle β of the limiting groove 203 and / or the limiting block 205 also the straight line through the centers of the two nut mounting holes 104, 108 the angle encoder is determined as the angular reference line. The angle sizes of β and γ therefore determine the angles of the start limitation point and the end limitation point of the limitation belt 203 and / or the limitation block 205.
    According to another example of the present disclosure, in practical use, it is required that the rotor of the angle encoder 100 rotates counterclockwise with the measured object, wherein the starting point angle θ ~ 10 °, the maximum allowable rotation angle α ~ 60 ° and the included angle σ of the limit pin 302 on the rotor 102 ~ 30 °. The corresponding starting angle β and opening angle y of the limiting groove 203 and / or the limiting block 205 within the angle encoder housing 101 are then:
    β = 0 + a / 2 = 10 c + 30 ° / 2 = 25 °;
    y - σ + α = 30 ° + 60 ° = 90 °.
    Consequently, for the angle encoder 100 of the present disclosure, some fixed corresponding relationships in structure and position of the limiting rulers 203 and / or the limiting block 205 in the housing 101, the direction of rotation of the rotor 102, the starting point angle θ, the maximum permissible rotation angle α and the included angle σ of the limiting groove 302 on the rotor 102. With the start or end point position or the opening angle size of the limiting groove 203 and / or the limiting block 205 in the housing 101 of the angle encoder 100 of the present disclosure and the included angle α of the limiting pin 302 of the rotor 1.02, the requirements of different angle encoders with respect to directions of rotation, starting point angle θ and maximum can be met permissible angle of rotation α of the rotor 102 are satisfied. By means of respective structures of respective elements and their mutual mounting arrangement, the angle sensor 100 of the present disclosure can be adapted to a large number of usage environments and thus has a high degree of adaptability.
    [00121] Although the present disclosure above with reference to that in FIGS
    BE2017 / 0120
    In the preferred embodiments shown in the drawings, it should be understood that the light heterogeneous material merging method of the present disclosure can have many variations without departing from the spirit, scope, and background of the present disclosure.
    Those of ordinary skill in the art will also understand that the parameters in the embodiments of the present disclosure can be varied in various modes, while all such varied parameters are within the spirit and scope of the present disclosure and claims.
    权利要求:
    Claims (15)
    [1]
    1. An angle encoder that includes:
    a housing which is provided with a receiving cavity;
    a rotor limited to rotate within the receiving cavity, a limiting pin being provided on an end portion of the rotor; a magnetic means that is secured to the rotor and rotates with the rotor within the receiving cavity;
    an elastic member disposed between the rotor and the housing for providing elasticity to cause the rotor to return to the home position; and detection means, fixed relative to the housing, for detecting a magnetic field change when the magnetic means rotates and generating an angle detection signal for the rotation of the rotor; wherein the receiving cavity includes a groove for movement arranged to receive the end portion of the rotor; and a restriction groove arranged to receive the restriction pin at the end portion of the rotor to limit an angle of rotation of the rotor.
    [2]
    2. Angle encoder according to claim 1, characterized in that a groove edge is provided which protrudes from a subsection of the receiving cavity; and a support surface is provided on an inner side end surface of the rotor and an upper end surface of the groove edge supports the support surface to limit an axial position of the rotor.
    [3]
    3. Angle encoder according to claim 2, characterized in that a limiting block is provided which protrudes from a subsection of the receiving cavity, and the limiting block is provided with a limiting surface in order to limit a range of rotation of the rotor.
    [4]
    4. Angle encoder according to claim 3, characterized in that
    BE2017 / 0120 the bounding block is a C-shaped bounding block; and a radially inner side surface of the C-shaped restricting block is mounted on an outer side surface of an inner side end portion of the slide fit rotor so as to limit a radial position of the rotor.
    [5]
    5 shows a circular supporting part which is provided at the outer end of the rotor, the supporting part being encased in the circular hole on the cap.
    30. Angle encoder according to claim 29, characterized in that an outer end surface is provided 10 at an opening of the receiving cavity and abuts the cap;
    a lower side of the cap extends to form a lower edge to abut against an abutment surface on an outside of the rotor so as to limit an axial position of the rotor.
    5. Angle encoder according to claim 4, characterized in that part of an inner side surface of the groove edge is mounted on the limiting pin of the rotor with a sliding fit, so as to limit the radial position of the rotor.
    [6]
    6. Angle encoder according to claim 3, characterized in that two lateral sides of the limiting pin have a contact surface, when the inner end portion of the rotor is inserted into the groove for movement, the limiting pin is inserted into the limiting groove; and the boundary surface is mounted with the contact surface of the boundary pin to limit a rotation angle range of the rotor.
    [7]
    7. Encoder according to claim 2, characterized in that the rotor includes a disc; and an outer diameter of the disk is identical to an inner diameter of the receiving cavity and an outer periphery of the disk is bonded to an inner wall of the receiving cavity to limit a radial position of the rotor.
    [8]
    8. Angle encoder according to claim 7, characterized in that the support surface is provided on an axial inside of the disc.
    [9]
    9. Angle encoder according to claim 7, characterized in that a snap mounting groove is provided on an outer edge of the disc and a snap mounting feature is provided on two sides of the snap mounting groove, for snap mounting a snap mounting hook, which is provided on the elastic part; and
    BE2017 / 0120 a notch is provided on an inside edge of the receiving cavity, for snap mounting of a fixed pin which is attached to the elastic part.
    [10]
    10. Angle encoder according to claim 9, characterized in that the elastic part is a torsion spring, one end of the torsion spring being provided with a positioning pin, the other end of which is provided with the snap mounting hook;
    the snap assembly hook of the torsion spring is mounted on the snap assembly feature on either side of the snap fit groove with a snap fit; the fixed pin at the other end of the torsion spring is caught in the notch so that the rotor rotates back to the starting position along a direction of the torque provided by the torsion spring
    [11]
    11. Angle encoder according to claim 7, characterized in that the disc is provided with a plurality of spokes on one side of an outer end of the rotor, the spokes increasing the thickness and strength of the disc, thereby improving a rotational stability of the rotor.
    [12]
    12. Angle encoder according to claim 2, characterized in that the elastic part is a torsion spring;
    an annular cavity for attaching the torsion spring between one
    Outer wall of the groove edge and an inner wall of the receiving cavity is arranged,
    [13]
    13. Angle encoder according to claim. 1, characterized in that the inside end portion of the rotor is provided with a receiving groove in which the magnetic means is attached
    [14]
    14. Angle encoder according to claim 1, characterized in that it further
    The following includes:
    a cap, a circular hole provided at a center of the cap;
    BE2017 / 0120 a circular supporting part which is provided at the outer end of the rotor, the supporting part being encased in the circular hole on the cap
    15. Angle encoder according to claim 14, characterized in that an outer end surface is provided at an opening of the receiving cavity and abuts the cap;
    a lower side of the cap extends to form a lower edge to abut against an abutment surface on an outside of the rotor so as to limit an axial position of the rotor.
    16. Angle encoder according to claim 1, characterized in that the detection center] is a Hall detection unit
    17. An angle encoder that includes:
    a housing provided with a receiving cavity;
    a rotor limited to rotate within the receiving cavity, a limiting pin being provided on an end portion of the rotor; a magnetic means that is secured to the rotor and rotates with the rotor within the receiving cavity;
    an elastic member connected between the housing and the rotor for providing elasticity to cause the rotor to rotate back to the home position;
    detection means secured to the housing for detecting a magnetic field change when the magnetic means rotates and generating an angle detection signal for the rotation of the rotor; and a restriction block is provided which protrudes from a subsection of the receiving cavity, the restriction block having restriction surfaces to limit a rotation range of the restriction pin on the rotor,
    18. Angle encoder according to claim 17, characterized in that
    Positions of the boundary surfaces on the boundary block of a direction of rotation of the rotor, a starting point angle Θ, a maximum permissible angle of rotation α
    BE2017 / 0120 and an included angle of the limiting pin on the rotor.
    19. Angle encoder according to claim 18, characterized in that one of the boundary surfaces on the boundary block is provided as the starting point of the rotor, the position angle θ of the starting point being as follows:
    θ = ß - a / 2; and the open angle σ between the boundary surfaces is as follows:
    σ “y - α.
    20. Angle encoder according to claim 19, characterized in that when the angle encoder operates, the rotor rotates counterclockwise relative to the housing.
    21. Angle encoder according to claim 17, characterized in that a groove edge is provided which is from the subsection of the receiving
    Protrudes cavity; and a support surface is provided on an inside end surface of the rotor and an upper end surface of the groove edge supports the support surface, thereby to limit an axial position of the rotor.
    22. Angle encoder according to claim 21, characterized in that the rotor includes a disc; and an outer diameter of the disk is identical to an inner diameter of the receiving cavity and an outer periphery of the disk is bonded to an inner wall of the receiving cavity, thereby to limit a radial position of the rotor.
    23. Angle encoder according to claim 22, characterized in that the support surface is provided on an axial inside of the disc.
    24. Angle encoder according to claim 22, characterized in that
    BE2017 / 0120 a snap mounting groove is provided on an outer edge of the disc and a snap mounting feature is provided on two sides of the snap mounting groove, for snap mounting a snap mounting hook provided on the elastic part; and a notch is provided on an inner side edge of the receiving cavity for snap-mounting a fixed pin attached to the elastic member.
    25. Angle encoder according to claim 24, characterized in that the elastic part is a torsion spring, one end of the torsion spring being provided with a positioning pin, the other end of which is provided with the snap mounting hook;
    the snap assembly hook of the torsion spring is mounted on the snap assembly feature on either side of the snap fit groove with a snap fit; the fixed pin at the other end of the torsion spring is caught in the notch so that the rotor rotates back to the starting position along a direction of the torque provided by the torsion spring.
    26. Angle encoder according to claim 22, characterized in that the disc is provided with a plurality of spokes on one side of the outer end of the rotor, the spokes increasing the thickness and strength of the disc to improve the rotational stability of the rotor.
    27. Angle encoder according to claim 21, characterized in that the elastic part is a torsion spring; and an annular cavity for attaching the torsion spring is disposed between an outer wall of the groove edge and an inner wall of the receiving cavity.
    28. Angle encoder according to claim 21, characterized in that the inside end portion of the rotor is provided with a receiving groove in which the magnetic means is attached.
    BE2017 / 0120
    29. Angle encoder according to claim 21, characterized in that it further comprises:
    a cap, a circular hole provided at a center of the cap;
    [15]
    15 31. Angle encoder according to claim 21, characterized in that the detection means is a Hall detection unit.
    类似技术:
    公开号 | 公开日 | 专利标题
    BE1026610B1|2020-04-14|ANGLE ENCODER
    DE19839027C1|2000-02-10|Displacement sensor for measuring cable for determining precise position of object: has casing provided by extruded profile enclosing rotation angle sensor, reverse rotation spring and cable drum for measuring cable
    DE102006032820A1|2007-02-08|ring magnet
    DE102012105963A1|2014-05-08|Rotation angle sensor
    EP0874974B1|2003-05-02|Structure of a steering-angle sensor module
    DE102016118412A1|2017-03-30|Vehicular / closing device
    DE10206543A1|2003-08-28|Gearbox and encoder equipped with this gearbox
    EP0804738A2|1997-11-05|Device for measuring rotational movements
    DE19908522C2|2001-11-08|Connector element and angle of rotation sensor which makes use of such a connector element
    EP0920605A1|1999-06-09|Magnetic position sensor
    EP3387658B1|2020-08-12|Magnet arrangement and plastic permanent magnet for such a magnet arrangement
    DE69914575T2|2004-12-16|rotation sensor
    EP2431627B1|2016-04-06|Disc brake with sealing
    DE4444802B4|2004-06-09|Tire pressure sensor
    DE112010003511T5|2012-08-30|Rotation detection device
    EP2750269B1|2017-03-01|Pump power unit
    EP2693582B1|2014-11-05|Rotary encoder
    EP1792806B1|2009-02-18|Steering angle sensor
    DE10062150A1|2001-06-21|Gas pedal device has pedal opening sensor with rotor rotatably mounted on supporting shaft, gas pedal bias device that biases gas pedal element in actuating direction and in opposite direction
    DE102005042616B4|2010-07-08|Rotary position sensor
    DE102013220323A1|2014-11-13|Wheel bearing with speed detection
    DE102010005023A1|2011-07-21|Sensor i.e. Hall sensor, for e.g. detecting magnetic fields in transmission of motor vehicle, has fastening element formed by edge area of housing, and passage opening integrated into element, where opening fastens sensor at destination
    EP1655524A1|2006-05-10|Sealing
    DE102019200029A1|2019-07-11|angle sensor
    DE112018001546T5|2019-12-05|linear actuator
    同族专利:
    公开号 | 公开日
    CN107796298A|2018-03-13|
    DE202017105338U1|2018-01-17|
    BE1026610A1|2020-04-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20110025314A1|2009-07-30|2011-02-03|Yazaki Corporation|Angle detector|
    US20120056739A1|2010-09-06|2012-03-08|Donghee Industrial Co., Ltd.|Displacement diagnosis sensor of brake pedal having stop lamp switch function|
    DE112011103636T5|2010-11-02|2013-08-08|Aisin Seiki Kabushiki Kaisha|Angle detection device|
    JP2012103185A|2010-11-12|2012-05-31|Tokyo Cosmos Electric Co Ltd|Non-contact type angle sensor|
    CN214149876U|2019-07-26|2021-09-07|纳恩博（北京）科技有限公司|Turn to detection mechanism and have its vehicle|
    CN111207666A|2020-03-21|2020-05-29|聊城市孩室宝家俱有限公司|Implementation method for magnetic control of electronic angle indicator|
    法律状态:
    2020-06-17| FG| Patent granted|Effective date: 20200414 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201610803020.1A|CN107796298A|2016-09-05|2016-09-05|Angular transducer|
    [返回顶部]