• 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 device for producing a ground connection for a control device and for temperature measurement, in particular for transmission and / or clutches (10) in the automotive sector. In this case, the device according to the invention comprises a temperature sensor (4) for measuring the transmission or clutch temperature, which is mounted on a support plate (3) of the control unit. Between the control unit and a unit (10) to be measured, in particular the transmission and / or the clutch, a heat and current-conducting connection (7) is provided such that on the one hand a temperature of the unit to be measured (10) from the temperature sensor (4) is measurable and that on the other hand, a ground connection (7b) between the control unit and the unit to be measured (10) can be produced. The device according to the invention has the advantage that it can be dispensed with a usually costly installation of an external temperature sensor. In addition, the device according to the invention can be easily and without additional use, such as e.g. of cables, copper braids, etc. a ground connection (7b) of the control device to a reference potential, usually the transmission and / or the clutch (10) made.
    公开号:AT510470A1
    申请号:T1562/2010
    申请日:2010-09-20
    公开日:2012-04-15
    发明作者:Gerhard Neumann；Gerald Vogt；Leopold Hellinger
    申请人:Melecs Ews Gmbh & Co Kg；
    IPC主号:
    专利说明:

    5 1 201005533 * «* * * * * · * * * *
    Description
    Device for ground connection of a control unit and for temperature measurement
    Technical area
    The present invention relates to a device for measuring temperature, in particular for transmission and / or 10 clutches in the automotive sector, as well as for producing a
    Ground connection for a control unit, in particular with a gearbox and / or a clutch. In this case, the device according to the invention comprises a temperature sensor for measuring the transmission or clutch temperature. 15
    Stand dar Tachnik
    In the automotive sector, sophisticated automotive electronic control units for controlling a variety of functions, such as e.g. to control a
    Gearbox and / or a clutch used. To control a gearbox and / or a clutch signals from multiple sensors are detected and processed by a control unit, wherein the control unit is usually connected to the housing 25 of the transmission and / or the clutch.
    The controller usually consists of mounted on a support plate electronic modules - so-called electronic components. 30 In order to protect the control unit against environmental influences, dirt or mechanical stress, this is usually used in a special housing. This housing usually consists of two parts - a lower housing part, which is often made of plastic, and 35 a housing cover, which is made for example of aluminum. These two housing parts can be connected to each other, for example by screws, rivets or by gluing. Between the two housing parts 201005533 2 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * · TM "is usually a seal attached, which is usually made of liquid silicone.
    For the protection of the control device or the electronic components 5 before e. Overvoltages, electrostatic charge is often provided a so-called ground connection. As a result of the ground connection, a conductive connection is produced by the control unit or by the housing of the control unit, in particular the housing cover, with a conductive environment or with a reference potential. In the automotive industry, the body or the frame usually represents the reference potential. Therefore, have control devices which are mounted on clutches and / or gears, a ground connection to a housing of the clutch or the transmission 15 on. Usually, such a ground connection is realized by cables, copper braid strips or multiply bent metal plates, which are screwed on both sides. The 20 means that the cable, copper braid or the sheet metal tab is in a separate operation, e.g. by screwing both the gearbox and / or the clutch and the housing cover attached. The disadvantage here is that such a ground connection is not only technically complex, but also cost-intensive.
    In addition, it is necessary to monitor temperatures in the motor vehicle sector, since extreme temperatures can quickly lead to problems or damage to the motor vehicle. Nowadays, it is common practice that in certain areas - e.g. in clutch and / or transmission - a continuous monitoring of the temperature or a continuous temperature measurement is taken over by appropriate automotive electronics. Such a measurement is usually carried out with the aid of a temperature sensor.
    The temperature sensor is usually attached to a relevant or suitable location and transmits the measured values. 201005533 • • • • • • • • • • • • • • • • * * * 9 • * II · • «« · * * • * · · · * «··! * * * * *
    Temperatures, for example, to a corresponding control unit. Usually, a temperature sensor to the transmission and / or the clutch is complained for the temperature measurement of the clutch and / or transmission. The electrical signals of the temperature sensor are then sent e.g. forwarded via a connector to the appropriate control unit. The disadvantage of such a mounted temperature sensor is that its installation is relatively complicated and expensive, and that it can always come back to 10 due to the connectors again.
    Presentation of the invention
    The invention is therefore an object of the invention to provide a device for ground connection and temperature measurement, through which a simple and cost-effective way Temperaturraessung, in particular of transmission and / or coupling, with low susceptibility is feasible, and by which a simple ground connection for a Control-20 device is manufacturable.
    The solution of this object is achieved by a device of the type described above, wherein a temperature sensor is mounted on a support plate of the controller, and that 25 between the controller and a unit to be measured, in particular the transmission and / or the clutch, a heat and electricity conductive Connection is provided such that a temperature of the unit to be measured by the temperature sensor can be measured and there is a ground connection between the control unit 30 and the unit to be measured.
    The main aspect of the proposed solution according to the invention is that in a simple and cost-effective manner it is ensured that, on the one hand, the temperature of a unit to be measured, such as a temperature sensor mounted on the support plate of the control unit, is increased. of the transmission and / or the clutch is monitored, and that on the other hand by the device according to the invention for 201005533 4 · * t »· * * * ··· *** < * ····· f | + * * ··· i * a simple ground connection of the controller to the unit to be measured is provided. This may result in costly installation of cables, braided copper bands, etc. as ground connection, as well as external temperature sensors with e.g. relatively error-prone connectors are dispensed with the control unit.
    It has proved to be advantageous if the unit to be measured is connected by the heat and current conductive connection for temperature transfer to the support plate of the controller applied line of the temperature sensor, and that by the conductive by the heat and electricity connection, an electrical connection between the to be measured unit and a housing cover of the controller is made. In this advantageous manner, a connection for temperature measurement with the temperature sensor is made via the heat-conducting connection. At the same time provided via the current-conducting connection for a ground connection, which connects the control unit with the unit to be measured, in particular the transmission and / or the clutch, or their housing as a ground potential in a simple manner.
    It is advantageous if the heat and current conductive connection is designed as a stamped part, which is pressed onto a mounting sleeve of a housing of the control unit. In this way, a costly and labor-intensive installation of the heat and current conductive connection is avoided. The stamped part can be easily attached to the latter in the manufacture of a lower housing part, which is produced by means of injection molding of plastic.
    An expedient development of the invention provides that the heat and current conducting connection has two tongues, with a first tongue serving as a heat path and a second tongue as a current path. This simple separation of heat path and current path can be optimized for optimal i. i. 201005533 5 • «« · · · · · · · * · * · · t · «
    Connection to the temperature measurement or for the ground connection are provided, since the tongues carried out according to the respective use or, for. can be isolated with plastic - for example in the case of housing production. 5
    It is recommended in this case if the second tongue used as a current path has contact teeth for an electrical connection between the unit to be measured and the housing cover of the control unit. The heat and current conducting connection is ideally up to the contact teeth with
    Plastic overmoulded. The plastic ensures insulation of the current path and can be easily removed e.g. be applied during the housing production. With the help of the contact teeth of the second tongue or the current path 15 can be penetrated in a simple manner, an oxide layer of the housing cover usually made of aluminum. This is a secure electrical connection or ground connection between the housing cover of the controller and the unit to be measured or the attachment point of the controller on the unit to be measured, for. Gear and / or clutch guaranteed.
    In a preferred embodiment of the invention, one end of the first tongue used as a heat path and the applied on the support plate 25 line of the temperature sensor is encapsulated with elastic liquid silicone. The encapsulation of the end of the first tongue or the heat path and the line of the temperature sensor with liquid silicone is advantageously a good and low-loss transport of the temperature over the 30 heat path of the unit to be measured (e.g.
    Clutch, etc.) to the temperature sensor ensured. In this case, ideally, the temperature of the unit to be measured at the point of attachment of the control unit via e.g. introduced a mounting sleeve and transported via the first tongue of the stamped part 35 and the heat path to the temperature sensor on the support plate of the control unit. The encapsulation with liquid silicone can be done in a simple manner and without additional operation by injection molding together with 5 5 201005533
    6 • * * * * * * * * * * * * * I * a gasket for the housing and any existing pressure domes.
    Brief description of the drawing
    The invention will now be described by way of example with reference to the accompanying drawings. Show it:
    FIG. 1 10
    FIG. 2 15
    FIG. 3 shows, by way of example, a schematic structure of the device according to the invention for ground connection for a control device and for temperature measurement, by way of example and schematically, a section through the device according to the invention and the control device in the region of attachment of the unit to be measured, and schematically shows a detail of the control device with the device according to the invention Area of ground connection
    Embodiment of the invention
    FIG. 1 shows schematically and by way of example a controller for e.g. a transmission and / or a clutch shown / which is housed in a housing.
    1 shows an underside of the control unit or the housing, which is shown broken in an area for mounting on the gearbox and / or the clutch. In the manner of representation selected in FIG. 1, therefore, only a first housing part 1 or a lower housing part 1 is visible. The first housing part 1 is made by injection molding from a plastic (e.g., thermoplastic).
    In the first or lower housing part 1 is the control unit consisting of a support plate 3, on the electronic components, for example, for control, regulation, etc. of the 35 201005533 7 ** ···· · · · »« «« «» »» ♦ * * k k I I I I • • t t t t t t t t t t t
    Gearbox or the coupling are mounted. With a second housing part 9 or housing cover 9, which is not visible due to the representation in Figure 1, the housing is closed to the support plate 3 and the components thereon 5 before e. Pollution and / or
    To protect damage. The housing cover 9 is made of metal, e.g. Aluminum. Between the two housing parts 1 and 9, a seal 2 is attached, which is usually made by injection molding of liquid silicone 10. The two housing parts 1 and 9 are connected by means of connecting elements such as e.g. Screws, rivets, etc. interconnected.
    On the support plate 3 of the control unit, a temperature sensor 4 is additionally 15 for the temperature measurement of a unit to be measured such as gear and / or clutch attached. On the support plate 3, a line 5 of the temperature sensor 4 is applied. This line 5 of the temperature sensor 4 is designed, for example, as a copper surface 20, on which the temperature sensor 4 is soldered, and which merges into a slot 5, which is open on one side, in the carrier plate 3. The side walls of the elongated hole 5 are e.g. also lined with copper. 25 For mounting on a unit to be measured (for example, gearbox and / or clutch), the lower housing part 1 of the control unit has a metal mounting sleeve 6. This is, for example, cast or fitted in the lower housing part 1 and is made of metal, e.g. Made of aluminum. At 30 of this mounting sleeve 6, a current and heat conductive compound 7 is attached. The current and heat conducting connection 7 is e.g. as a stamped part 7 made of metal (for example aluminum). The stamped part 7 is pressed onto the mounting sleeve 6 and has two tongues 7a and 7b. Like the mounting sleeve 6, the stamped part 7 is also encapsulated almost all over the surface or cast into the lower housing part 1, wherein the respective ends of the two tongues 7a and 7b are not 201005533 • »8 * · l» lf <»» · * V · Are covered by plastic or protrude from the plastic of the lower housing part 1.
    The first tongue 7a serves as a heat path and from it the unit to be measured, e.g. the temperature introduced via the mounting sleeve 6 to the transmission and / or the clutch up to near the support plate 3 and thus to the line 5 of the temperature sensor 4. For a thermal transmission between the end of the first tongue 7a and the heat path 7a and the line 5 of the temperature sensor 4, which is designed as a copper-lined slot 5, the end of the first tongue 7a with an encapsulation 8 of e.g. Liquid silicone provided as tolerance compensation. As a result, for example, the heat or the temperature of the unit to be measured via the encapsulation 8 and the tolerance compensation 8 from the end of the first tongue 7a introduced into a side wall of the slot 5 and the line 5 of the temperature sensor 4 and thereby measured by the temperature sensor 4 become. As a result, the lowest possible transport of the temperature from the unit to be measured to the mounted on the support plate 3 temperature sensor 3 is guaranteed.
    The encapsulation 8 can be applied, for example, by means of a so-called 2K injection molding process or 2-shoot molding process together with the seal 2.
    In a 2K injection molding or 2-shoot molding process, e.g. in a first step - a so-called first shot - by injection molding the lower housing part 1 made of a thermoplastic (plastic). After solidification of the lower housing part 1, in a second step or second shot, the seal 2 and the other components made of liquid silicone such. the encapsulation 8 and / or possibly necessary Anpressdome molded in the form of a separate injection unit.
    The current and heat conducting connection 7 or the stamped part 7 pressed onto the mounting sleeve 6 also has an almost completely overmolded second tongue 7b. The second tongue • • 4 • 4 4 '• • • • • * * * • • • • 4' • • • • • • • • • • • • • * * 1 1 • «► • f • ft * A * 201005533 7b is used as the current path or for a ground connection of the control unit. By the second tongue 7b, which at one end not overmolded contact teeth 7c (not visible in Figure 1}, a secure electrical connection between eg an attachment point of the controller on the unit to be measured (eg transmission, clutch, etc.) and the not visible in Figure 1 housing cover 9 of the controller made.
    Figure 2 shows schematically and by way of example the control unit with housing, which is attached to the unit to be measured 10 via the mounting sleeve 6, wherein the control unit is cut in the region of the attachment point for better representation of the temperature line TL and a structure of the control unit. FIG. 2 shows the control unit with the two-part housing consisting of the lower housing part 1 and the housing cover 9. Between the housing parts 1 and 9, the seal 2 is made of liquid silicone and the housing parts 1 and 9 are connected to fasteners such. Screws connected together.
    In the lower housing part 1, the support plate 3 of the control unit is mounted again. This has in a region of the slot 5 and the line 5 for the temperature sensor 4. In the slot 5 and the line 5 for the temperature sensor 4 projects the end of the first tongue 7a (heat path) of the stamped part 7, which is applied to the mounting sleeve 6 shown in section. This end of the first tongue 7a has again in the region of the slot 5, the encapsulation 8 as tolerance compensation.
    With the mounting sleeve 6, the control unit is attached to the unit 10 to be measured - for example, the transmission and / or the clutch - and attached via a fastener such. a screw connected to the unit 10 to be measured. The temperature of the unit 10 to be measured is then transmitted via a path of the temperature line TL from the unit 10 to be measured via the attachment of the control unit .1 * • 4 · · · »· * Λ '» I ff · eg Mounting and mounting sleeve 6 - directed. From the mounting sleeve 6, the temperature in the pressed-stamped part 7 - in particular in the first tongue 7a and in the heat path 7a - coupled. The first tongue 7a then conducts the temperature to the elongated hole 5 in the support plate 3 and the line 5 of the temperature sensor 4, where the tolerance for compensation 8 and the overmold 8, the temperature for a measurement by the temperature sensor 4 in the e.g. Copper coated side walls of the slot 5 is initiated.
    As a result, the lowest possible transport of the temperature from the unit 10 to be measured to the temperature sensor 4 on the carrier plate 3 is achieved. In addition, a costly attachment of an external temperature sensor is no longer necessary in this way, which is relatively susceptible to interference due to external wiring and connectors to the controller and can be easily damaged.
    FIG. 3 schematically shows, by way of example, a section of the control device, wherein the control device is cut open in the region of the current and heat-conducting connection 7, which corresponds to an area above the attachment point of the control device to the unit to be measured, in particular the transmission and / or the clutch , In the section shown in Figure 3, the connection of the ground connection is shown enlarged.
    In Figure 3, the lower housing part 1, the support plate 3 and the housing cover 9 of the control unit is shown again. Between the two housing parts, the seal 2 is attached again. In the first and lower housing part 1, the current and heat conductive compound 7, the second tongue 7 b is shown in Figure 3, poured.
    In this case, the second tongue 7b is encapsulated almost over the entire surface. Only the contact teeth 7c at the end of the second tongue 7b and the current path 7b are not covered by the plastic of the lower housing part 1. With the contact teeth 7c of the housing 201005533 • * • · 11 • «· * t · ι · ι ι lid 9 of the control unit contacted. The contact teeth 7c usually serve to penetrate the oxide layer of the housing cover 9, which is usually made of aluminum. In this way, a secure electrical connection between the housing cover 9 and the attachment point of the control device and thus the unit 10 to be measured (e.g.
    Gear and / or the clutch), which serves for example as a reference potential, and provided for a ground connection of the controller. 10
    With the cast in the lower housing part 1 and pressed onto the mounting sleeve 6 current and heat conductive compound 7 so that not only an external temperature sensor can be replaced by a temperature sensor 15 located in the control unit 4, but also in a simple manner to an additional attachment of Cables, copper braids or multiply bent sheets are omitted as ground connection for the control unit. This eliminates not only the installation of a costly external temperature sensor with its 20 partially fault-prone electrical connections, but also attaching / screwing the ground connection (eg cables, copper braid, etc.) after installation of the controller, since the current and heat conductive compound 7 for the Ground connection and the temperature measurement already together 25 with the mounting sleeve 6 in the manufacture of the lower housing part 1 - eg by insertion into the injection molding tool - in the control unit or in housing is attached.
    权利要求:
    Claims (8)
    [1]
    1. Device for ground connection of a control device and for temperature measurement, in particular for transmission and / or clutch (10) of a motor vehicle, wherein a temperature sensor ( 4) is provided, characterized in that the temperature sensor (4) is mounted on a support plate (3) of the control unit, and that between the control unit and a unit to be measured (10), in particular the transmission and / or the clutch, a heat and current-conducting connection (7) is provided such that a temperature of the unit to be measured (10) from the temperature sensor (4) is measurable and a ground connection (7b) between the control unit and the unit to be measured (10).
    [2]
    2. Apparatus according to claim 1, characterized in that the unit to be measured (10) by the heat and current conductive connection (7, 7a) for temperature transmission with on the support plate (3) of the controller applied line (5) of the temperature sensor (4 ), and in that an electrical connection (7b) between the unit (10) to be measured, the control unit and a housing cover (9) of the control unit is produced by the connection (7, 7b) conducting the heat and current.
    [3]
    3. Device according to one of claims 1 to 2, characterized in that the heat and current conductive connection (7) is designed as a stamped part, which is pressed onto a mounting sleeve (6) of a housing (1, 9) of the control unit.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the heat and current conducting connection (7) has two tongues (7a, 7b), wherein a first tongue (7a) as a heat path (TL) and a second tongue ( 7b) serve as a current path. 201005533 14 • ♦ · • · • • • • • • «« «« «« «« • • • • •
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the used as a current path second tongue (7b) contact teeth (7c) for an electrical connection between the measuring unit (10) and the housing cover (9) of the control unit.
    [6]
    6. Device according to one of claims 1 to 5, characterized in that the heat and current conductive connection (7) to the contact teeth (7c) is encapsulated with a plastic.
    [7]
    7. Device according to one of claims 1 to 6, characterized in that one end of the heat path used as the first tongue (7b) and on the carrier plate (3) applied line (5) of the temperature sensor (4) encapsulated with elastic liquid silicone are.
    [8]
    8. Device according to one of claims 1 to 7, characterized in that the encapsulation (8) by means of injection molding together with a seal (2) for the housing (1, 9) and possibly existing Anpressdome is made.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5136998A|1990-02-06|1992-08-11|Motorola, Inc.|Automotive control unit with internal sensor|
    DE29701502U1|1997-01-30|1998-05-28|Bosch Gmbh Robert|Electrical device, in particular switching and control device for motor vehicles|
    DE19823685C2|1998-05-27|2000-12-07|Siemens Ag|Electronic control device for a motor vehicle|
    DE602004028782D1|2003-07-09|2010-10-07|Jtekt Corp|Control unit for a drive train|DE102018204271A1|2018-03-20|2019-09-26|Te Connectivity Germany Gmbh|Arrangement for detecting the temperature and contact arrangement with such an arrangement|
    AT522432B1|2019-08-29|2020-11-15|Melecs Ews Gmbh|Electronic device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1562/2010A|AT510470B1|2010-09-20|2010-09-20|DEVICE FOR MASS CONNECTION OF A CONTROL DEVICE AND TEMPERATURE MEASUREMENT|ATA1562/2010A| AT510470B1|2010-09-20|2010-09-20|DEVICE FOR MASS CONNECTION OF A CONTROL DEVICE AND TEMPERATURE MEASUREMENT|
    EP11177085.5A| EP2431718B1|2010-09-20|2011-08-10|Device for earthing a control device and temperature measurement|
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