• 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:
    The invention relates to a connection device comprising a male element (2) and a female element (1) adapted to be inserted axially into one another and to lock one to the other via a bayonet mechanism (8, 18), the male element (2) and the female element (1) each carrying a primary magnetic circuit comprising a ferromagnetic yoke and a plurality of magnets disposed in a plane transverse to the insertion axis, the primary magnetic devices being capable of magnetically coupling to one another when the male element (2) and the female element (1) are in close proximity to each other; one of the other to form a multipolar magnetic circuit in which the magnets are arranged between the two yokes so as to generate a magnetic flux closing on the two yokes and to cause a magnetic force of axial attraction.
    公开号:FR3072216A1
    申请号:FR1759460
    申请日:2017-10-10
    公开日:2019-04-12
    发明作者:Jean Paul Yonnet；Anthony Sanchez
    申请人:Centre National de la Recherche Scientifique CNRS；A Raymond SARL；
    IPC主号:
    专利说明:

    CONNECTION DEVICE COMPRISING A MULTIPOLAR MAGNETIC CIRCUIT
    FIELD OF THE INVENTION
    The field of the invention is that of connection devices comprising a female element and a male element adapted to be inserted axially into one another, magnetic circuits being provided on the female element and the male element for create a magnetic field which tends to bring the two elements closer when they are inserted one in the other.
    The invention relates more particularly to electrical connectors in which the female element can be a male electrical plug can female fixed to a towing vehicle and the element being a male electrical plug of a trailer coupling.
    TECHNOLOGICAL BACKGROUND OF THE INVENTION
    We know that a trailer hitch is attached to the rear of a towing vehicle via a towing hook attached to the vehicle body.
    When the trailer hitch is hooked to the vehicle, the light signals such as indicators, brake or reversing lights from the rear of the vehicle are masked by the trailer and a transfer of these light signals from the towing vehicle to the trailer must be made through an electrical connector comprising a female electrical outlet generally fixed on the towing vehicle and a male electrical outlet connected by an electrical cable to the trailer lights.
    Document FR3022084 discloses such an example of an electrical connector with a female electrical outlet and a male electrical outlet.
    -2Magnets are arranged on the two electrical sockets to produce a mutual attraction effect which leads to automatically press them against each other, and helps to facilitate the guiding of the male plug, blindly, towards the female plug .
    As stated in the aforementioned document, the axial attraction force exerted by the magnets between them is relatively low. It is not always sufficient to securely hold the two sockets together. This is in particular due to the reduced size of the magnets, which it is necessary to size in order to maintain a compact device. This is also imposed by the need to be able to disconnect the two sockets from one another without having to exert an axial extraction force, to counter the magnetic attraction force, which is excessive and which would make the connection device not very ergonomic.
    This is why it is sought to improve the connection of the female and male electrical sockets and to improve the reliability of locking the sockets in the electrical connection position.
    BRIEF DESCRIPTION OF THE INVENTION
    With a view to achieving this aim, the object of the invention provides a connection device comprising a male element and a female element adapted to be inserted axially into one another and to lock one to the other. other by means of a bayonet mechanism, the male element and the female element each carrying a primary magnetic circuit comprising a ferromagnetic yoke and a plurality of magnets arranged in a plane transverse to the axis of insertion . Primary magnetic devices are capable of magnetically coupling to each other when the male element and the female element are in close proximity to each other to form a multipolar magnetic circuit in which the magnets are arranged between the two yokes so as to
    -3 generate a magnetic flux closing on the two cylinder heads and causing a magnetic force of axial attraction.
    The ability to channel the fluxes generated by the magnets and to close these fluxes on the cylinder heads makes it possible to develop a particularly intense magnetic force of attraction when the magnets are at a short distance between the male and female elements.
    The intensity of this force is used to press the male element to the female element firmly against each other in addition to the mechanical retention formed by the bayonet locking mechanism. In this way, a particularly reliable connection device is formed.
    According to other advantageous and non-limiting characteristics of the invention, taken alone or in any technically feasible combination:
    • the primary magnetic circuit of the female element and the primary magnetic circuit of the male element have an angular locking offset in a plane transverse to the insertion axis to produce a magnetic holding torque having a spring effect;
    • the angular locking offset is between 4 ° and 6 °;
    the application of an unlocking torque to the other of the elements to place the two unlocking positions requires unlocking between the female element and the circuit circuit on one of the elements or in a magnetic magnetic shift the force of de de l 'male element for axial attraction has that generated when the two elements are which primary primary angular magnetic intensity less than disposed in the locked position;
    • the unlocking angular offset is between 10 ° and 45 °;
    • the multipolar magnetic circuit has four poles;
    • the multipolar magnetic circuit has two poles;
    • the female element comprises an annular cage with an orifice into which a connection stud of the male element is inserted;
    • the female element and the male element are provided with at least one guide cam tending to separate the male element from the female element in the event of unlocking;
    • the guide cam is formed of a tooth with inclined sides disposed on the female element and a groove with inclined edges disposed on the male element, the tooth being configured to engage in the groove when the element female and male element are inserted into each other;
    • the tooth is configured to bear on the inclined edges of the groove so as to move the male element away from the female element in the event of unlocking;
    • the device comprises a mechanical keying system for angularly positioning the male element in the female element;
    • the female element and the male element are electrical sockets;
    • electrical outlets are electrical outlets for a hitch, and in particular a trailer hitch.
    - 5 BRIEF DESCRIPTION OF THE DRAWINGS
    Other characteristics and advantages of the invention will emerge from the detailed description of the invention which will follow with reference to the appended figures in which:
    - Figures 1 and 7 are schematic illustrations of an electrical connector for coupling comprising a male electrical outlet before its insertion into the female electrical outlet, according to two variants according to the invention;
    - Figures la and 2 are a schematic illustration of the female electrical outlet according to one embodiment of the invention;
    - Figures 1b and 3 are a schematic illustration of the male electrical outlet according to an embodiment of the invention;
    - Figures 4a and 4b illustrate the angular offset of the primary magnetic circuits arranged on the female electrical outlet and the male electrical outlet when these are in a locked and unlocked position;
    Figures 5a and 5b illustrate two examples of multipolar magnetic circuits which can be used in a connection device according to the invention;
    - Figure 6 shows the evolution of the force and the magnetic torque generated by the multipole magnetic circuits of Figures 5a and 5b as a function of the angular offset.
    DETAILED DESCRIPTION OF THE INVENTION
    For the sake of simplification of the description to come, the same references are used for identical elements
    -6or ensuring the same function in the different modes of implementation of the product.
    Sure the figures 1 la, lb we illustrated way schematic a example of connection device according to 1'invention who comprises here a female element 1 and a element
    male 2 adapted to be inserted axially along axis A into one another and lock in the connection position and vice versa.
    The female element 1 can here be a female electrical outlet intended for example to be fixed to a body of a towing motor vehicle (not shown) and the male element 2 can here be a male electrical outlet which is connected by a electric cable to the lights of a trailer (not shown).
    As can be seen in FIGS. 1 and 1a, the female element 1 comprises a cylindrical cover 3 with a collar-shaped body 4 which has an orifice 5 of an annular cage, having a chamfered peripheral edge 12.
    In the particular case illustrated in FIGS. 1 and where the connection device is an electrical outlet, electrical contacts 6 with a strip can be arranged on the annular cage by means of a barrel 6b. Each electrical contact 6 with lamella can be wired by standard crimp terminal to an electrical cable.
    A shutter 7 mounted movable in axial translation, for example by means of a return spring 7a, in the cage is provided here to close the orifice 5 in the absence of the male element 2, which prevents dust and other dirt to enter the annular cage of the female element 1.
    As particularly visible in FIG. 2, the inner annular wall of the annular cage here has two diametrically opposite recesses 8. Each recess 8 forms an axial slot open on the edge of the orifice 5. The slot has
    A straight edge on one side and an inclined edge on the other side which constitutes a guide ramp 9. The slope of the guide ramp 9 is large enough to allow a clean and frank connection of the male 2 and female 1 elements, and small enough so that the axial forces during the connection of the male 2 and female 1 elements are limited. Thus, an angular range between 25 and 35 ° can be a good compromise.
    The guide ramp 9 ends in an internal shoulder 10 limited by a stop 11. The length of the internal shoulder 10, that is to say the distance separating the end of the ramp 9 from the stop 11, is chosen so as to be large enough to correctly secure the connection between the male 2 and female 1 elements, and to be small enough so that the two female 1 and male 2 elements can be separated without much effort. A length between 3 and 4 mm can be a good compromise.
    Referring to Figures 1 and 1b, the male element 2 here comprises a cylindrical body 15a with a front flange 15b from which extends axially a cylindrical connection pad 16. In the particular case where the connection device is an electrical outlet, electrical contacts 17 with lamella can be arranged on the annular external surface of the connection pad 16. Each electrical contact 17 with lamella can be wired by standard crimp lug to a electric cable.
    The front end of the connection pad 16 has a chamfered peripheral edge to facilitate its insertion into the orifice 5 of the female element 1. The base 19 of the connection pad 16 of the male element 2, on the body side 15b, is here frustoconical with an outer surface complementary to the inner surface of the chamfered peripheral edge 12 of the orifice 5 of the female element 1.
    In Figure 1 and Figure 3, there are illustrated two lugs 18 projecting radially from the annular outer surface of the connection pad 16. These lugs 18 diametrically opposite on the connection pad 16 are intended to penetrate the axial slots forming the recesses 8 and to be housed in the spaces defined by the internal shoulders 10. In this way, a bayonet locking mechanism is formed.
    1 male element 2 and female element
    Thanks to this mechanism, the male element 2 cannot be extracted from the female element 1 by a simple axial extraction effort, without however these elements being kept pressed against one another.
    During the insertion the orifice 5, forming the of the connection pad 16 therefore engages in the slots recesses 8 by axial translation, and the ramps 9. At the end of the insertion of the element the two lugs two in slip on male 2 in the female element contact against the stops 11 by the shoulders 10. This locking of the male element
    1, the two lugs 18 come into recesses 8 while being guided configuration defines the position 2 and of the female element 1.
    To disconnect the two elements from one another, a torque is applied to one or the other of the two elements 1, 2 so as to come into abutment with the pins 18 on the straight edges of the slots forming the openings 8, these straight edges facing the stops 11 of the shoulders 10. This configuration defines the unlocking position of the male element 2 and of the female element 1. In this position, the lugs 18 of the internal shoulders 10 are released , which can therefore be extracted from the openings 8 by applying an axial extraction force to one of the elements 1, 2 in order to separate them from one another.
    The connection device can advantageously provide a mechanical key to guide the insertion of the male element 2 into the female element 1 according to a determined relative angular position of these elements. For this purpose, on the front part of the flange of the body 4 of the female element 1, one can provide a pin 14 projecting axially, and similarly provide on the front part of the flange of the body 15b of
    -9the male element 2, a lumen 23 in which the pin 14 can engage.
    FIG. 7 represents a connection device according to an alternative embodiment of the invention. In the case shown in this figure, the recesses 8 are formed on the outer contour of the flange 4 of the female connector 1. There is on each recess 8 the ramp 9 the shoulder 10, the stop 11 of the shoulder 10. We also finds the right edge of the opening 8 opposite the stop 11 of the shoulder 10. The pins 18 are carried by two axially projecting elements of the male element 2. As in the main embodiment of Figures 1 , la, lb, the pins 18 and the openings 8 form a bayonet locking mechanism.
    According to the invention and independently of the chosen variant of implementation, the male element 1 and the female element 2 each carry a magnetic primary circuit 23a, 23b respectively disposed behind the front part of the flange 15b of the body of the male element 2 and behind the front part of the collar 4 of the female element 1, as shown in FIGS. 1a and 1b.
    Each primary magnetic circuit 23a, 23b comprises a yoke 24a, 24b formed of a ferromagnetic material, such as soft iron. The yokes 24a, 24b are respectively arranged in the female element 1 and the male element 2 along a plane transverse to the insertion axis. Each cylinder head can take the form of a ring, as shown in FIGS. 1a and 1b, or take any closed shape or consist of a plurality of non-contiguous segments.
    Each primary magnetic circuit also comprises a plurality of magnets 25, capable of generating a magnetic flux, and fixed to the yoke 24a, 24b. The magnets 25 are arranged on the side of the front part of the flange 15b of the male element 2 and, respectively on the side of the front part of the flange 4 of the female element 1, opposite the cylinder head 24a , 24b. Consequently, when the male element 2 and the element
    - 10femelle 1 are close to each other, the magnets 25 are arranged between the two yokes 23a, 23b.
    As will be explained in more detail in the remainder of this description, when the male and female elements 1, 2 are in close proximity to one another, the primary magnetic circuit 23a of the female element 1 and the primary magnetic circuit 23b of the male element 2 have an angular offset in a plane transverse to the insertion axis. This offset will be referred to more simply as “angular offset” in the remainder of this description. The angular offset results from the angular orientation in which each of the primary magnetic circuits 23a, 23b has been made integral with the male element 2 and the female element 1. It also results from the relative angular orientation of the element male 2 and female element 1, when these are about to be connected together.
    The orientation of the magnets 25 is chosen so that, in at least one range of angular shifts, a magnetic force of attraction leading to bring the two elements 1, 2 closer to each other develops. Several preferred examples will be detailed in the remainder of this description, in relation to the description of FIGS. 5a and 5b.
    In the embodiment shown in Figures la and lb, four permanent magnets are respectively arranged and regularly distributed around the periphery of each of the annular yokes 24a, 24b, at 90 ° from each other. We could completely consider another distribution and for example separate two adjacent magnets 25 at an angle between 60 and 120 degrees. This distribution is not necessarily identical on the two primary magnetic circuits 23a, 23b, although by simplicity of implementation of the magnetic phenomena which operate, this configuration is preferred. It makes it possible in particular to establish an angular reference position for which the magnets 25 of each primary magnetic circuit 23a, 23b are opposite one another.
    - 11 Permanent magnets can take the form of a cube a few millimeters on each side and consist of NdFeB. They may have a residual induction of the order of 1.2 T or more.
    FIG. 5a shows the two primary magnetic circuits 23a, 23b, isolated from the rest of the parts making up the male 2 and female 1 elements for greater visibility, when these elements are brought close to each other. other, in insertion position. In the configuration of magnets 25 shown in FIG. 5a, any adjacent pair of magnets of one of the primary circuits 23a, 23b consists of magnets oriented to have opposite polarities, according to a configuration of the “NSNS” type. In this configuration, there are two angular shifts for which the magnets of each primary circuit 23a, 23b are opposite one another, opposing faces of opposite polarities, which therefore attract each other.
    In the arrangement shown in FIG. 5a, the primary magnetic circuits 23a, 23b tend to couple magnetically to each other to form a multipolar magnetic circuit 26. This circuit produces an axial attraction force which tends to bring together or move the two elements 1, 2 apart from each other and a magnetic torque which tends to rotate one of the elements 1, 2 relative to the other. This force and this torque are represented by the arrows F and C in FIG. 5a. The magnetic fluxes generated by the permanent magnets 25 are channeled, circulate and close on these yokes 24a, 24b.
    Four magnetic flux loops circulating in each of the adjacent pairs of magnets of each primary circuit 23a, 23b and in each yoke portion 24a, 24b thus separating this pair of magnets are thus formed. The polar magnetic circuit 26 then has four poles 26a, 26b, 26c, 26d as shown diagrammatically in FIG. 5.
    The ability to channel the fluxes generated by the permanent magnets 25 and to close them to form magnetic poles makes it possible to develop a particularly intense attraction effort between the male and female elements 1, 2, much more intense than that which would be generated. by primary magnetic circuits 23a, 23b consisting of simple magnets, of the same dimension as those used here.
    The intensity of this effort is used in the present invention to guide the connection of the male element 2 to the female element 1 and to press the male element 2 firmly against the other to the female element. 1 in addition to the mechanical restraint formed by the bayonet locking mechanism. In this way, a particularly reliable connection device is formed. Thus, the magnetic attraction force of the two elements 1, 2 towards each other naturally causes the lugs 18 to penetrate the slots 8, the lugs 18 to slide on the ramps 9 to place these lugs 18 in the shoulder 10.
    In order to allow the device to be disconnected using a reduced axial extraction force, and less than that exerted by the magnetic attraction force, the male 2 and female 1 elements can be provided with at least one cam guide tending to move the two male and female elements 1, 2 away from each other when these elements are moved in rotation relative to each other from the locked position to the unlocked position.
    Thus, and as shown in Figures 1, 2 and 3, the peripheral edge 12 of the orifice 5 can be provided with two diametrically opposite teeth 13 each having two inclined faces which serve as a bearing surface. The frustoconical base 19 of the male element may comprise two grooves 20 with inclined edges 21, 22 in which the teeth 13 with inclined faces of the female element 1 can engage respectively when the male element 2 is inserted in the female element 1.
    - 13 The spacing caused by the rotation of the two elements relative to each other has the effect of reducing the axial magnetic attraction and therefore facilitating the disconnection of the two male and female elements. In other words, it is understood that when passing from a locking position to an unlocking position, the breaking of the magnetic link is facilitated by mechanical cooperation between the inclined edges 21, 22 of the grooves 20 of the stud 16 of the male element 2 and the inclined faces of the teeth 13 of the female element 1, forming the guide cams.
    In general, the direction and intensity of the magnetic force and torque which are generated by the multipolar magnetic circuit 26 depend on the angular offset existing between the two primary magnetic circuits 23a, 23b. Thus, FIG. 6 represents respectively the component along the axis A of insertion of the magnetic force, and the magnetic torque generated by the multipolar magnetic circuit 26 as a function of the angular offset. By convention, the angular offset zero or reference is defined the offset for which the multipolar magnetic circuit 26 produces a maximum attraction force between the two primary magnetic circuits 23a, 23b and a zero magnetic torque. The primary magnetic circuits 23a, 23b are respectively secured to the male 2 and female 1 elements so that a zero angular offset leads to placing the lugs 18 approximately opposite the openings 8.
    It is verified in FIG. 6 that around this zero angular offset, the multipolar magnetic circuit 26 produces a strong attraction force tending to press the male element 2 against the female element 1. The magnetic torque tends to it is up to him to reduce this angular offset to a zero angular offset of equilibrium, which guides the movement of the lugs 18 towards the slots forming the openings 8. The multipolar magnetic circuit 26 therefore makes it possible to naturally guide, blindly, the insertion of the male element 2 in the female element 1, by angularly orienting these elements
    - un'one relative to the other to allow placing in the locked position without a user having to exert a force or a particular torque on the elements 1, 2. Note that depending on the configuration of the magnetic circuit multipolar 26, it has several angular offset corresponding to the definition of reference angular offset stated above. In this case, it suffices to choose as the reference angular offset value, that which approximates the lugs 18 vis-à-vis the recesses 8. This choice can be materialized by the presence of a mechanical keying mechanism as described above.
    In a very advantageous variant of the invention, in the locking position illustrated in FIG. 4a and materialized by the arrow F1 in FIG. 6, the primary magnetic circuits 23a, 23b have an angular offset “a” between them, a few degrees, for example between 4 ° and 6 °, so as to exert a residual magnetic torque leading to hold the lugs 18 against the stops 11. This produces a return spring effect, making it possible to hold the lugs 18 against the stops 11. The locking position of the two elements 1, 2 is secured with the aid of this holding torque.
    As seen above, to unlock the connection device, an unlocking torque is applied to one or other of the elements 1, 2 to place them in an unlocking position in which the pins 18 are in abutment with the straight walls of the slots 8. The unlocking position results in the imposition of an angular unlocking offset b, shown in FIG. 4b, between the two primary magnetic circuits 23a, 23b. This position is indicated by the arrow F2 in FIG. 6. Advantageously, this angular offset is chosen so that the magnetic force of axial traction has a relatively low intensity, as is clearly visible in FIG. 6, making it possible to extract the male element 2 of the female element 1 with a relatively low extraction force on the part of the user.
    - 15 More generally, it will be sought that in the unlocked position, the magnetic tensile force generated by the multipolar magnetic circuit 26 is less (and preferably significantly lower) than the magnetic tensile force generated by this magnetic circuit 26 in the locked position. To obtain this particular configuration, one can play on the mechanical dimensioning of the male and female elements 1, 2, and in particular on the angular movement of the lugs 18 in the recesses 8 between the two locking and unlocking positions, and on the configuration of the primary magnetic circuits 23a, 23b so as to adjust the profile of the characteristic curves, such as those shown in FIG. 6.
    We can use this ingenious feature alone, or in combination with the guide cam, to seek to reduce the extraction force to be applied to obtain the disconnection of the device.
    It will be noted in FIG. 6 that in the unlocking position a restoring torque still applies, so that if the user releases his extraction efforts, the two male and female elements 1, 2 can come together again.
    In the confiquration of the multipolar magnetic circuit 26 of FIG. 5a, there are four poles and therefore two angular reference positions. In this case, and as already announced previously, the mechanical keying device can allow the assembly to be authorized for only one of this reference position.
    Preferably, however, it will be chosen to form a multipolar magnetic circuit 26 comprising only two poles, and therefore having only a single angular reference offset. This can be obtained by placing only two magnets 25 on the annular yokes 24a, 24b of each primary magnetic circuit 23a, 23b. However, such a configuration does not make it easy to obtain the profiles of
    - 16force and torque which have been reported in FIG. 6, although
    that such confiquration applications. rest possible in some Preferably therefore, we use four magnets permanent on each cylinder head 24a, 24b, in a disposition
    similar to that described in relation to the description of FIG. 5a. However, in this preferred mode and for each primary circuit 23a, 23b, two pairs of adjacent magnets are oriented to have opposite polarities, and two other pairs of adjacent magnets are oriented to have identical polarities, to form a configuration "NNSS". Two loops 26a, 26b of magnetic circulation of opposite polarity are thus formed.
    As is clearly visible in FIG. 5b, it is not necessary in this case for the cylinder heads to have a closed shape, such as in the form of a ring, to allow the flows to be closed and the two poles to be closed. Two disjoint sections of ferroelectric material are sufficient to form a functional cylinder head. In this configuration, the magnetic behavior of the multipolar magnetic circuit 26 is very similar to that represented by the characteristic curves of FIG. 6.
    We can choose to combine such a configuration of the multipole magnetic circuit 26 in dipole with a mechanical keying device, even if the latter is no longer necessary.
    Of course, the invention is not limited to the modes of implementation described and it is possible to add variants without departing from the scope of the invention as defined by the claims.
    Although it has been indicated in the examples illustrated, four magnets per set of magnets of each primary circuit 23a, 23b, the invention can be applied to a different number of magnets, preferably an even number of magnets. In addition, some of the magnets 25 can be replaced with
    - 17 simple ferromagnetic parts, insofar as these replacements always make it possible to close the fluxes in the multipolar magnetic circuit. It is therefore not necessary that all the magnets 25 consist of permanent magnets.
    It will be noted that the mechanical polarization system could be arranged so that the pin 14 is placed on the flange of the body 15 of the male element 2 and the light 23 on the flange of the body 4 of the female element 1.
    It will also be noted that when the connection device is an electrical outlet, the electrical lamella contacts 6, 17 are distributed internally for the female electrical outlet 1 and externally for the male electrical outlet 2 and extend in the axial direction of insertion. The correct contacting of the electrical contacts 6 and 17 with a lamella is guaranteed by the choice of using lamellae with a spring zone.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. Connection device comprising a male element (2) and a female element (1) adapted to be inserted axially into one another and to be locked to one another by means of a mechanism with bayonet (8, 18), the male element (2) and the female element (1) each carrying a primary magnetic circuit (23a, 23b) comprising a ferromagnetic yoke (24a,
    24b) and a plurality of magnets (25) arranged in a plane transverse to the insertion axis, the primary magnetic devices (23a, 23b) being capable of being magnetically coupled to each other when the element male (2) and female element (1) are in close proximity to each other to form a multipolar magnetic circuit (26) in which the magnets (25) are arranged between the two yokes (24a, 24b) so as to generate a magnetic flux which closes on the two yokes (24a, 24b) and cause a magnetic force of axial attraction.
    [2" id="c-fr-0002]
    2. Device according to the preceding claim wherein, in the locked position, the primary magnetic circuit (23a) of the female element (1) and the primary magnetic circuit (23b) of the male element (2) have an angular offset locking in a plane transverse to the insertion axis to produce a magnetic holding torque having a spring effect.
    [3" id="c-fr-0003]
    3.
    Device according to the preceding claim, in which the angular locking offset is between
    [4" id="c-fr-0004]
    4 ° and 6 °.
    4. Device according to one of claims 2 to 3 wherein the application of an unlocking torque on one or the other of the elements (1, 2) to place the two elements (1, 2) in position for unlocking requires an angular offset for unlocking between the primary magnetic circuit (23a) of the female element (1) and the primary magnetic circuit (23b) of the male element (2) for which the magnetic force of axial attraction has less intensity than that generated when
    - 19the two elements (1, 2) are arranged in the locking position.
    [5" id="c-fr-0005]
    5. Device according to the preceding claim wherein the angular offset of unlocking is between 10 ° and 45 °.
    [6" id="c-fr-0006]
    6. Device according to one of claims 1 to 5 wherein the multipole maqnétique circuit (26) has four poles.
    [7" id="c-fr-0007]
    7. Device according to one of claims 1 to 5 wherein the multipolar magnetic circuit (26) has two poles.
    [8" id="c-fr-0008]
    8. Connection device according to one of the preceding claims, in which the female element (1) comprises an annular cage with an orifice (5) in which a connection stud (16) of the male element is inserted ( 1).
    [9" id="c-fr-0009]
    9. Connection device according to one of the preceding claims, in which the female element (1) and the male element (2) are provided with at least one guide cam tending to separate the male element (2) from the female element (1) in the event of unlocking.
    [10" id="c-fr-0010]
    10. Connection device according to the preceding claim, in which the guide cam is formed by a tooth (13) with inclined faces disposed on the female element (1) and a groove (20) with inclined edges (21 , 22) disposed on the male element (2), the tooth (13) being configured to engage in the groove (20) when the female element (1) and the male element (2) are inserted one inside the other.
    [11" id="c-fr-0011]
    11. Connection device according to claim 10 wherein the tooth (13) is configured to bear on the inclined edges (21, 22) of the groove (20) so as to move the male element (2) away from the female element (1) in the event of unlocking.
    [12" id="c-fr-0012]
    12. Connection device according to one of the preceding claims, comprising a mechanical keying system for angularly positioning the male element (2) in the element
    5 female (1).
    [13" id="c-fr-0013]
    13. Connection device according to one of the preceding claims wherein the female element (1) and the male element (2) are electrical sockets.
    [14" id="c-fr-0014]
    14. Connection device according to the preceding claim wherein the electrical outlets are electrical outlets for a hitch, and in particular a trailer hitch.
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    EP0382667A1|1990-08-16|Easily dismantled floor
    同族专利:
    公开号 | 公开日
    US11165196B2|2021-11-02|
    CN109659763A|2019-04-19|
    EP3695466A1|2020-08-19|
    EP3695466B1|2022-03-02|
    FR3072216B1|2020-10-09|
    WO2019073150A1|2019-04-18|
    US20200244005A1|2020-07-30|
    CN209374784U|2019-09-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2625847A1|1988-01-12|1989-07-13|Dalmau Raymond|Device for magnetic connection between a light bulb and its socket|
    EP2760089A1|2013-01-25|2014-07-30|WESTFALIA - Automotive GmbH|Electrical connection system for the electrical connection of a trailer to a towing vehicle|
    FR3010243A1|2013-09-05|2015-03-06|Souriau|ELECTRICAL CONNECTION ASSEMBLY WITH AUTOMATIC CLOSURE CAP|
    FR3022084A1|2014-06-10|2015-12-11|Raymond A & Cie|ELECTRICAL CONNECTOR FOR A TRAILER HITCH|
    CN204558790U|2015-02-12|2015-08-12|廖芳|Magnetic connector|WO2020229321A1|2019-05-15|2020-11-19|Gulplug|Three-phase electrical connection system|US3521216A|1968-06-19|1970-07-21|Manuel Jerair Tolegian|Magnetic plug and socket assembly|
    US3810258A|1972-07-11|1974-05-07|W Mathauser|Quick connect electrical coupler|
    GB0216448D0|2002-07-16|2002-08-21|Mcleish Graham|Connector|
    JP4292231B1|2008-03-24|2009-07-08|株式会社東芝|Electronics|
    US9300081B2|2010-02-02|2016-03-29|Charles Albert Rudisill|Interposer connectors with magnetic components|
    US8348678B2|2010-01-11|2013-01-08|Automotive Industrial Marketing Corp.|Magnetic cable connector systems|
    US8608502B2|2012-05-08|2013-12-17|Otter Products, Llc|Connection mechanism|
    FR3038460B1|2015-07-01|2019-09-13|Gulplug|ELECTRICAL SOCKET ASSEMBLY|
    CN106058567B|2016-07-29|2019-08-13|茁腾安防科技（上海）有限公司|Magnetic plug and socket|
    FR3072216B1|2017-10-10|2020-10-09|A Raymond Et Cie|CONNECTION DEVICE INCLUDING A MULTIPOLAR MAGNETIC CIRCUIT|FR3072216B1|2017-10-10|2020-10-09|A Raymond Et Cie|CONNECTION DEVICE INCLUDING A MULTIPOLAR MAGNETIC CIRCUIT|
    CN111370952A|2020-03-26|2020-07-03|四川大学|Signal connection device with micro-discharge inhibiting function|
    TWI728871B|2020-07-20|2021-05-21|亞源科技股份有限公司|Wire joint anti-falling device|
    法律状态:
    2019-04-12| PLSC| Publication of the preliminary search report|Effective date: 20190412 |
    2019-10-28| PLFP| Fee payment|Year of fee payment: 3 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 4 |
    2021-10-21| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1759460A|FR3072216B1|2017-10-10|2017-10-10|CONNECTION DEVICE INCLUDING A MULTIPOLAR MAGNETIC CIRCUIT|
    FR1759460|2017-10-10|FR1759460A| FR3072216B1|2017-10-10|2017-10-10|CONNECTION DEVICE INCLUDING A MULTIPOLAR MAGNETIC CIRCUIT|
    PCT/FR2018/052465| WO2019073150A1|2017-10-10|2018-10-05|Connection device comprising a multipolar magnetic circuit|
    US16/652,366| US11165196B2|2017-10-10|2018-10-05|Connection device comprising a multipolar magnetic circuit|
    EP18793256.1A| EP3695466B1|2017-10-10|2018-10-05|Connection device comprising a multipolar magnetic circuit|
    CN201811233296.6A| CN109659763A|2017-10-10|2018-10-10|Coupling arrangement including multipole magnetic circuit|
    CN201821732939.7U| CN209374784U|2017-10-10|2018-10-10|Coupling arrangement including multipole magnetic circuit|
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