Terminal assembly and wheel speed sensor

Abstract

The utility model discloses a terminal assembly and a wheel speed sensor, the terminal assembly comprises a first connecting terminal and a second connecting terminal which are arranged side by side, and an insulation supporting seat fixed on the first connecting terminal and the second connecting terminal, and the insulation supporting seat is fixed on a terminal main body. And the insulating supporting seat is provided with a supporting table which is matched with the mold for positioning. According to the utility model, the terminal assembly with a novel structure is designed to be matched with the wheel speed sensor, an insulating supporting seat is provided for the terminal assembly, and each terminal in the terminal assembly is fixed through the insulating supporting seat and is pre-positioned in a mold, so that the terminal assembly can be fixed even if a bracket of a chip module is melted and loses supporting force during injection molding; the insulating supporting seat can continue to provide supporting force until injection molding is completed, and therefore it is ensured that the chip module is located at the preset position in the wheel speed sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a terminal assembly and a wheel speed sensor. Background Art

[0002] In the traditional wheel speed sensor injection molding process, the chip module is installed on the bracket, and the terminal assembly is connected to the chip pins through a crimping process. In order to keep the terminal assembly in an integrated structure, the terminals in the terminal assembly are connected by a connecting bridge. Before injection molding, the connecting bridge between the terminals needs to be cut off to avoid short circuit of the terminals.

[0003] For some larger wheel speed sensors, the injection molding time is longer, which causes the bracket to be in the high-temperature mold for a long time and undergo a certain degree of melting and deformation, thereby losing its supporting force and being unable to ensure that the chip module is in the correct position in the sensor, resulting in signal loss and inability to receive signals. Utility Model Content

[0004] The purpose of the utility model is to provide a terminal assembly and a wheel speed sensor, which provides a terminal assembly with a new structure, can maintain the integrated structure of the terminal assembly, and can provide support for the chip module to solve the above technical problems.

[0005] According to a first aspect of an embodiment of the utility model, a terminal assembly is provided, which is applied to a wheel speed sensor, wherein the terminal assembly includes a terminal body and a first electrical connection end and a second electrical connection end located at both ends of the terminal body, the first electrical connection end is connected to a chip module, and the second electrical connection end is connected to an external connector, the terminal assembly includes a first connection terminal and a second connection terminal arranged side by side, and an insulating support seat fixed to the first connection terminal and the second connection terminal, the insulating support seat is fixed to the terminal body, and a support platform is provided on the insulating support seat for positioning in cooperation with the mold.

[0006] A further improvement of the terminal assembly of the utility model is that the terminal body includes a supporting section and an extension section bent relative to the supporting section, the first electrical connection end is located at the free end of the supporting section, the second electrical connection end is located at the free end of the extension section, and the insulating support seat is arranged on the supporting section.

[0007] A further improvement of the terminal assembly of the utility model is that the first electrical connection end is bent downward relative to the support section, the extension section is bent upward relative to the support section, and the second electrical connection end is bent inward relative to the extension section.

[0008] A further improvement of the terminal assembly of the utility model is that the insulating support seat is integrally injection molded with the first connecting terminal and the second connecting terminal.

[0009] A further improvement of the terminal assembly of the utility model is that the insulating support seat and the first connecting terminal and the second connecting terminal are detachably assembled.

[0010] A further improvement of the terminal assembly of the utility model is that the insulating support seat includes a first buckle portion that is engaged with the first connecting terminal and a second buckle portion that is engaged with the second connecting terminal.

[0011] A further improvement of the terminal assembly of the utility model is that the insulating support seat also includes a positioning column pre-assembled with the first connecting terminal and / or the second connecting terminal, and the first connecting terminal and / or the second connecting terminal is provided with a positioning hole adapted to the positioning column.

[0012] A further improvement of the terminal assembly of the utility model is that the support platform is arranged on a side of the insulating support seat away from the second electrical connection end, and the insulating support seat also includes a sealing rib enclosed by the support platform.

[0013] According to a first aspect of an embodiment of the utility model, a wheel speed sensor is provided, comprising a mounting seat, a fixing seat located on the mounting seat, a connector connected to the fixing seat, a chip module arranged in the mounting seat, and a terminal assembly as described in any one of the above, wherein the terminal assembly is arranged in the fixing seat.

[0014] A further improvement of the wheel speed sensor of the utility model is that the mounting seat is in a disc shape, the fixing seat is in a block shape located on the mounting seat, and the connector is arranged at an angle to the fixing seat.

[0015] According to the terminal assembly and wheel speed sensor provided by the utility model, a terminal assembly of a new structure is designed to be adapted to the wheel speed sensor, and an insulating support seat is provided for the terminal assembly. Each terminal in the terminal assembly is fixed by the insulating support seat and pre-positioned in the mold, so that even if the support of the chip module melts and loses its supporting force during injection molding, the insulating support seat can continue to provide supporting force until the injection molding is completed, thereby ensuring that the chip module is in a predetermined position in the wheel speed sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in detail below through exemplary embodiments with reference to the accompanying drawings, wherein:

[0017] Figure 1 A schematic diagram showing the structure of a wheel speed sensor provided by an embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram showing the structure of the assembly of a terminal assembly and a chip module provided by an embodiment of the utility model;

[0019] Figure 3 Another perspective structural schematic diagram of a terminal assembly provided by an embodiment of the utility model is shown;

[0020] Figure 4 A schematic diagram showing the structure of the assembly of a terminal assembly and a chip module provided by another embodiment of the utility model;

[0021] Figure 5 A schematic diagram showing the structure of the assembly of a terminal assembly and an insulating support seat provided by another embodiment of the utility model;

[0022] Figure 6 Another perspective structural schematic diagram of a terminal assembly provided by yet another embodiment of the utility model is shown.

[0023] The accompanying drawings are only schematic and not necessarily drawn to scale, and they only show those parts necessary to illustrate the utility model, while other parts may be omitted or only briefly mentioned. That is, in addition to the parts shown in the accompanying drawings, the utility model may also include other parts. DETAILED DESCRIPTION

[0024] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0025] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0026] In the description of this embodiment, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. These are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0027] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0028] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Figure 1 A schematic diagram showing the structure of a wheel speed sensor provided by an embodiment of the utility model is shown; Figure 2 A schematic diagram showing the structure of the assembly of a terminal assembly and a chip module provided by an embodiment of the utility model; Figure 3 Another perspective structural schematic diagram of a terminal assembly provided by an embodiment of the utility model is shown.

[0031] Reference Figures 1 to 3 The wheel speed sensor 100 of the embodiment of the utility model includes a mounting seat 1, a fixing seat 2 located on the mounting seat 1, and a connector 3 connected to the fixing seat 2. The housings of the mounting seat 1, the fixing seat 2 and the connector 3 are formed by injection molding. The wheel speed sensor 100 also includes a chip module 10 arranged in the mounting seat 1 and a terminal assembly 20 arranged in the fixing seat 2, and the terminals of the terminal assembly 20 extend into the connector housing to form the connector 3. During the manufacturing process, the chip module 10 and the terminal assembly 20 are pre-positioned in the mold, and then the chip module 10 is fixed in the mounting seat 1 by injection molding, and the terminal assembly 20 is fixed in the fixing seat 2, and finally the wheel speed sensor 100 of the utility model is formed.

[0032] In one embodiment, the wheel speed sensor 100 is a bearing end cover wheel speed sensor. The mounting seat 1 is disc-shaped, the fixing seat 2 is a block-shaped seat located on the mounting seat 1, and the connector 3 and the fixing seat 2 are arranged at an angle.

[0033] In the conventional injection molding process of the wheel speed sensor 100, the chip module 10 is mounted on the bracket 11, and the terminal assembly 20 is connected to the chip pins by a crimping process. In order to keep the terminal assembly 20 in an integrated structure, the terminals in the terminal assembly 20 are connected by a connecting bridge. Before injection molding, the connecting bridges between the terminals need to be cut off to avoid short circuits of the terminals.

[0034] The terminal assembly 20 of the present invention is provided with an insulating support seat to make the terminal assembly 20 an integrated structure, thereby reducing the step of cutting off the connecting bridge. The insulating support seat can also play a supporting role during the injection molding process to ensure that the chip assembly remains in a predetermined position.

[0035] In one embodiment, the terminal assembly 20 includes a terminal body 201 and a first electrical connection end 202 and a second electrical connection end 203 located at both ends of the terminal body 201, the first electrical connection end 202 is connected to the chip module 10, and the second electrical connection end 203 is connected to the external connector 3, that is, the second electrical connection end 203 is located in the connector housing, and cooperates with the connector housing to form a connector 3, which is used to connect to the external connector 3 for communication.

[0036] The terminal assembly 20 includes a first connection terminal 21 and a second connection terminal 22 arranged side by side and an insulating support seat 23 fixed to the first connection terminal 21 and the second connection terminal 22, and the insulating support seat 23 is fixed to the terminal body 201. In the terminal assembly 20, the terminal body 201 is composed of the main body of the first connection terminal 21 and the second connection terminal 22, and the first connection terminal 21 and the second connection terminal 22 both include a first electrical connection end 202 and a second electrical connection end 203, and the first connection terminal 21 and the second connection terminal 22 are of the same shape, the first electrical connection end 202 is the same end of the first connection terminal 21 and the second connection terminal 22, and the second electrical connection end 203 is the same end of the first connection terminal 21 and the second connection terminal 22. Of course, the terminal assembly 20 of the utility model is not limited to the first connection terminal 21 and the second connection terminal 22, and under communication requirements, it can also include a third connection terminal, a fourth connection terminal, etc.

[0037] Furthermore, the insulating support seat 23 is provided with a support platform 231 that cooperates with the mold for positioning. By cooperating with the mold for positioning, the support platform 231 can further provide support force for the chip module 10 and the terminal assembly 20 during the injection molding process. Even if the bracket 11 of the chip module 10 melts and loses its support force, the insulating support seat 23 can continue to provide support force until the injection molding is completed, thereby ensuring that the chip module 10 is in a predetermined position in the wheel speed sensor 100. The support platform 231 is arranged on the side of the insulating support seat 23 away from the second electrical connection end 203, and the support platform 231 is a protrusion extending from the insulating support seat 23.

[0038] In one embodiment, the terminal body 201 includes a support section 2011 and an extension section 2012 bent relative to the support section 2011, the first electrical connection end 202 is located at the free end of the support section 2011, the second electrical connection end 203 is located at the free end of the extension section 2012, and the insulating support seat 23 is disposed in the support section 2011. In the embodiment of the utility model, Figure 1 and Figure 2 In the state of the injection molding process, the support section 2011 tends to be set horizontally, the support platform 231 is set below the support section 2011, the first electrical connection end 202 is bent downward relative to the support section 2011, the extension section 2012 is bent upward relative to the support section 2011, and the second electrical connection end 203 is bent inward relative to the extension section 2012. This arrangement makes it easy to install the connector 3 on the vehicle chassis. Of course, the bending angle and direction of the terminal can be changed according to different installation environments, and no specific restrictions are made here. In addition, a through hole is provided on the extension section 2012 to facilitate integration with the injection molding material.

[0039] Furthermore, the insulating support seat 23 further includes a sealing rib 232 enclosed by the support platform 231, so as to ensure the sealing after injection molding. The insulating support seat 23, the support platform 231 and the sealing rib 232 are integrally formed by injection molding.

[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the insulating support seat 23 is integrally injection molded with the first connecting terminal 21 and the second connecting terminal 22, that is, each terminal of the terminal assembly 20 is injection molded in advance to fix each terminal through the insulating support seat 23 to form an integral structure. This changes the traditional production process, eliminates the step of cutting off the connecting bridge, reduces processing time, and thus improves production efficiency.

[0041] like Figures 4 to 6As shown, in another embodiment, the insulating support seat 23 is detachably assembled with the first connection terminal 21 and the second connection terminal 22. That is, the insulating support seat 23 is produced separately, and then assembled to the first connection terminal 21 and the second connection terminal 22 in an assembleable manner, so that the first connection terminal 21 and the second connection terminal 22 are combined into an integrated terminal assembly 20.

[0042] The insulating support seat 23 includes a first buckle portion 233 that is engaged with the first connection terminal 21 and a second buckle portion 234 that is engaged with the second connection terminal 22. In one embodiment, the first buckle portion 233 and the second buckle portion 234 are both opposite clamping arms, and the ends of the clamping arms are configured as inverted thorn structures for easy installation and engagement.

[0043] The insulating support seat 23 also includes a positioning column 235 pre-assembled with the first connection terminal 21 and / or the second connection terminal 22, and the first connection terminal 21 and / or the second connection terminal 22 are provided with a positioning hole 211 adapted to the positioning column 235. The positioning column 235 is provided to ensure that the insulating support seat 23 is firmly fixed to the terminal assembly 20 after installation, and to prevent the insulating support seat 23 from sliding on the connection terminal. In order to achieve the best installation effect of the insulating support seat 23, the first connection terminal 21 and the second connection terminal 22 are both provided with a positioning hole 211, and the insulating support seat 23 is provided with a positioning column 235 corresponding to the first connection terminal 21 and the second connection terminal 22. Among them, the positioning column 235 is located in the middle of the two clamping arms.

[0044] The wheel speed sensor provided by the utility model designs a terminal assembly of a new structure to adapt to the wheel speed sensor, and provides an insulating support seat for the terminal assembly. The terminals in the terminal assembly are fixed by the insulating support seat and pre-positioned in the mold, so that even if the support of the chip module melts and loses the supporting force during injection molding, the insulating support seat can continue to provide supporting force until the injection molding is completed, thereby ensuring that the chip module is in a predetermined position in the wheel speed sensor. In addition, by replacing the connecting bridge between the connecting terminals with the insulating support seat, the step of cutting the connecting bridge can be omitted, reducing the processing time, thereby improving the production efficiency.

[0045] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A terminal assembly, applied to a wheel speed sensor, comprising a terminal body and a first electrical connection end and a second electrical connection end located at both ends of the terminal body, wherein the first electrical connection end is connected to a chip module, and the second electrical connection end is connected to an external connector, characterized in that: The terminal assembly includes a first connecting terminal and a second connecting terminal arranged side by side and an insulating support seat fixed to the first connecting terminal and the second connecting terminal. The insulating support seat is fixed to the terminal body and is provided with a support platform that cooperates with the mold for positioning.

2. The terminal assembly according to claim 1, characterized in that: The terminal body includes a supporting section and an extending section bent relative to the supporting section, the first electrical connection end is located at the free end of the supporting section, the second electrical connection end is located at the free end of the extending section, and the insulating support seat is arranged on the supporting section.

3. The terminal assembly according to claim 2, characterized in that: The first electrical connection end is bent downward relative to the support section, the extension section is bent upward relative to the support section, and the second electrical connection end is bent inward relative to the extension section.

4. The terminal assembly according to claim 1, characterized in that: The insulating support seat is integrally injection-molded with the first connecting terminal and the second connecting terminal.

5. The terminal assembly according to claim 1, characterized in that: The insulating support seat is detachably assembled with the first connecting terminal and the second connecting terminal.

6. The terminal assembly according to claim 5, characterized in that: The insulating support seat includes a first buckle portion that is buckled with the first connecting terminal and a second buckle portion that is buckled with the second connecting terminal.

7. The terminal assembly according to claim 5, characterized in that: The insulating support seat further comprises a positioning column preassembled with the first connecting terminal and / or the second connecting terminal, and the first connecting terminal and / or the second connecting terminal are provided with a positioning hole adapted to the positioning column.

8. The terminal assembly according to claim 1, characterized in that: The support platform is arranged on a side of the insulating support seat away from the second electrical connection end, and the insulating support seat also includes a sealing rib enclosed by the support platform.

9. A wheel speed sensor, characterized in that: It comprises a mounting seat, a fixing seat located on the mounting seat, a connector connected to the fixing seat, a chip module arranged in the mounting seat, and a terminal assembly as described in any one of claims 1-8, wherein the terminal assembly is arranged in the fixing seat.

10. The wheel speed sensor according to claim 9, characterized in that: The mounting seat is in a disc shape, the fixing seat is in a block shape located on the mounting seat, and the connector is arranged at an angle to the fixing seat.

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