Wire harness connector for thermoset forming motor sensor

Abstract

The utility model discloses a wire harness joint for a thermoset forming motor sensor, which relates to the technical field of sensors and comprises a shell, a metal pin and a wire harness, the metal pin is connected with the wire harness, and the metal pin and the wire harness are wrapped by the shell; the shell is provided with a guide positioning column and at least one supporting limiting plane, the height of the supporting limiting plane is lower than that of the top end of the metal contact pin, and the height of the guide positioning column is higher than that of the top end of the metal contact pin. According to the utility model, the crimping depth of the circuit board is limited through the support limiting plane, and abnormal signal transmission caused by too deep crimping or improper crimping of the circuit board is avoided. The circuit board is effectively guided and positioned in advance through the guiding and positioning columns, the problem that the metal pins are deformed and damaged due to the fact that the position of the circuit board deviates in the crimping process is avoided, the damage rejection rate of the metal pins is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a wiring harness connector for a thermosetting molding motor sensor. Background Art

[0002] Motor position sensors are mainly used in automotive drive systems and are used in brake and transmission systems. Motor position sensors are installed on motors to monitor and feedback the rotation angle and position of the motor shaft.

[0003] like Figure 1-Figure 3 As shown, there is a motor position sensor with a wiring harness structure in the prior art, and the product includes a housing 1', a circuit board 2' and a wiring harness connector 3', and the circuit board 2' and the wiring harness connector 3' are fixed by the housing 1'. It is found in actual use that such a structure is difficult to control the best and suitable position for crimping the circuit board 2' and the pins during the production and assembly process, which can easily lead to abnormal conduction and unstable signals. At the same time, since the circuit board 2' and the wiring harness connector 3' are only connected to each other through pins, the circuit board 2' has no support on the wiring harness connector 3', and the side of the circuit board 2' away from the wiring harness connector 3' is prone to drooping or warping, resulting in poor positioning of the circuit board 2', affecting the performance of the sensor.

[0004] Furthermore, the circuit board 2' and the harness connector 3' cannot be guided in advance during the crimping process, which may easily cause the circuit board 2' to shift in position, causing the pins to be deformed and damaged.

[0005] Since the thermosetting housing 1' and the wiring harness connector 3' are formed by secondary injection molding, the plastic block of the wiring harness connector 3' is poorly bonded to the thermosetting material, which also results in poor tensile strength of the wiring harness connector 3'.

[0006] In view of this, the present invention is designed with an in-depth understanding of the many deficiencies and inconveniences caused by the imperfections in the existing sensor structure design, and the present invention is developed through active research, improvement and trial production. Utility Model Content

[0007] The utility model aims to overcome the deficiencies of the prior art and provide a wiring harness connector for a thermosetting motor sensor to fix the wiring harness, support and position the circuit board, and ensure the position accuracy requirements of the circuit board.

[0008] In order to achieve the above purpose, the solution of the utility model is:

[0009] A wiring harness connector for a thermosetting motor sensor, comprising a housing, a metal pin and a wiring harness, wherein the metal pin and the wiring harness are connected to each other, and the housing is covered on the metal pin and the wiring harness;

[0010] The housing is provided with a guide positioning column and at least one supporting limiting plane, the height of the supporting limiting plane is lower than the height of the top end of the metal pin, and the height of the guide positioning column is higher than the height of the top end of the metal pin.

[0011] Furthermore, the shell includes an embedding seat and an injection molding seat, the metal pin is embedded in the embedding seat and one end of the metal pin away from the wiring harness extends out of the embedding seat, and the wiring harness passes through the injection molding seat and is connected to the metal pin.

[0012] Furthermore, a limiting groove is provided on the surface of the injection molding seat.

[0013] Furthermore, the limiting groove is an annular groove connected end to end, and the limiting groove is circumferentially opened on the surface of the injection molding seat.

[0014] Furthermore, the guide positioning column and a support limiting plane are respectively arranged at two ends of the shell in the length direction.

[0015] Furthermore, the guide and positioning column is arranged at an end of the embedding seat away from the wiring harness.

[0016] Furthermore, the guide positioning column is provided with a supporting limiting plane along the width direction of the shell.

[0017] Furthermore, the metal pin and the wiring harness are connected to each other by crimping or welding.

[0018] Furthermore, the shell is made of nylon material.

[0019] After adopting the above structure, the utility model limits the crimping depth of the circuit board by supporting the limiting plane, thereby avoiding abnormal signal transmission caused by excessive crimping depth or inadequate crimping of the circuit board.

[0020] In addition, the utility model effectively guides and positions the circuit board in advance through the guide positioning column, thereby avoiding the problem of metal pins being deformed and damaged due to the position deviation of the circuit board during the crimping process, reducing the damage and scrap rate of the metal pins and improving production efficiency.

[0021] Furthermore, the utility model fixes and supports the circuit board simultaneously through the guide positioning column and the support limiting plane, thereby preventing the circuit board from sagging or warping on the side away from the wiring harness connector, thereby improving the stability of the sensor performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the prior art;

[0023] Figure 2 It is a partial structural schematic diagram of the prior art;

[0024] Figure 3It is a structural schematic diagram of a wiring harness connector in the prior art;

[0025] Figure 4 This is a schematic diagram of the structure of a preferred embodiment of the utility model;

[0026] Figure 5 This is a structural exploded view of a preferred embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of assembling a preferred embodiment of the utility model with a thermosetting housing;

[0028] Figure 7 Schematic diagram of the assembly of the preferred embodiment of the utility model and the circuit board Figure 1 ;

[0029] Figure 8 Schematic diagram of the assembly of the preferred embodiment of the utility model and the circuit board Figure 2 .

[0030] Explanation of the reference numerals: 1. Shell; 11. Mounting seat; 12. Injection molding seat; 121. Limiting groove; 13. Guide positioning column; 14. Support limiting plane; 2. Metal pin; 3. Wiring harness; 4. Circuit board; 5. Thermosetting shell. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] like Figures 4 to 8 As shown, a preferred embodiment of a wiring harness connector for a thermosetting formed motor sensor of the utility model comprises a housing 1, a metal pin 2 and a wiring harness 3, wherein the metal pin 2 and the wiring harness 3 are connected to each other, and the housing 1 is covered over the metal pin 2 and the wiring harness 3; a guide positioning column 13 and at least one supporting limiting plane 14 are provided on the housing 1, wherein the height of the supporting limiting plane 14 is lower than the height at the top end of the metal pin 2, and the height of the guide positioning column 13 is higher than the height at the top end of the metal pin 2.

[0034] Specifically, the housing 1 is made of nylon material, and the housing 1 fixes the metal pin 2 and the wiring harness 3 together to play a role in positioning and fixing. The metal pin 2 and the wiring harness 3 are connected to each other by crimping or welding, and serve as a conducting line for signal transmission.

[0035] During the production process, the circuit board 4 needs to be crimped onto the wiring harness connector, and then the circuit board 4 and the wiring harness connector are encapsulated in the thermosetting shell 5 by injection molding, thereby forming a complete motor sensor.

[0036] In this embodiment, the metal pin 2 is a fisheye pin, and the top surface of the support limit plane 14 is horizontally arranged between the two elastic parts and the root of the fisheye pin. When the metal pin 2 is assembled with the circuit board 4 by crimping, the circuit board 4 is pressed to the support limit plane 14, which is the best crimping position.

[0037] In other embodiments, the height of the support and limiting plane 14 may also be designed differently according to the size of the metal pin 2 , the thickness of the circuit board 4 , and the like.

[0038] In this embodiment, the housing 1 is provided with a guide and positioning column 13 which is higher than the metal pin 2, and the circuit board 4 is provided with a positioning hole corresponding to the guide and positioning column 13. When assembling the circuit board 4, the positioning hole and the guide and positioning column 13 are matched with each other to determine that the installation position of the circuit board 4 is correct, and then the circuit board 4 is crimped; if the positioning hole and the guide and positioning column 13 are misaligned, that is, the circuit board 4 is not in the correct installation position, the guide and positioning column 13 which is higher than the metal pin 2 can prevent the circuit board 4 from being pressed down and thus damaging the metal pin 2.

[0039] When the circuit board 4 is assembled on the wiring harness connector, the circuit board 4 is engaged with the metal pin 2, the guide positioning column 13 is engaged in the positioning hole, and the support limit plane 14 is in contact with the bottom of the circuit board 4 to prevent the circuit board 4 from tilting.

[0040] The key point of the present invention is that the present invention limits the crimping depth of the circuit board 4 by supporting the limiting plane 14, so as to avoid abnormal signal transmission caused by the circuit board 4 being crimped too deeply or not crimped in place.

[0041] In addition, the utility model effectively guides and positions the circuit board 4 in advance through the guide positioning column 13, thereby avoiding the problem of the metal pin 2 being deformed and damaged due to the position deviation of the circuit board 4 during the crimping process, reducing the damage and scrap rate of the metal pin 2 and improving production efficiency.

[0042] Furthermore, the utility model fixes and supports the circuit board 4 simultaneously through the guide positioning column 13 and the support limiting plane 14, thereby preventing the circuit board 4 from sagging or warping on the side away from the wiring harness connector, thereby improving the stability of the sensor performance.

[0043] In this embodiment, the housing 1 includes an embedding seat 11 and an injection molding seat 12. The metal pin 2 is embedded in the embedding seat 11 and one end of the metal pin 2 away from the wiring harness 3 extends out of the embedding seat 11, and the wiring harness 3 passes through the injection molding seat 12 and is connected to the metal pin 2.

[0044] The surface of the injection molding seat 12 is provided with a limiting groove 121. In this embodiment, the limiting groove 121 is an annular groove connected end to end, and the limiting groove 121 is circumferentially opened on the surface of the injection molding seat 12. The contact area between the thermosetting shell 5 and the shell 1 is increased by the limiting groove 121. After injection molding, the thermosetting shell 5 forms a boss that is inserted into the limiting groove 121, ensuring that the wiring harness connector is tightly connected to the thermosetting shell 5 and will not be disconnected from the thermosetting shell 5 during use, which can improve the bonding degree between the wiring harness connector and the thermosetting material and solve the problem of poor tensile strength of the wiring harness connector.

[0045] In this embodiment, the guide positioning column 13 is arranged at one end of the embedding seat 11 away from the wiring harness 3. Two support limiting planes 14 are arranged on the housing 1, one support limiting plane 14 and the guide positioning column 13 are arranged at both ends of the housing 1 in the length direction, and the other support limiting plane 14 is arranged on the inner side of the guide positioning column 13 along the width direction of the housing 1. When the circuit board 4 is assembled to the wiring harness connector, the two support limiting planes 14 and the guide column jointly fix the circuit board 4, and can abut against the circuit board 4 in both the length direction and the width direction of the housing 1, thereby improving the stability of the installation of the circuit board 4.

[0046] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A wiring harness connector for a thermosetting motor sensor, characterized in that: It includes a shell, a metal pin and a wiring harness, wherein the metal pin and the wiring harness are connected to each other, and the shell is covered outside the metal pin and the wiring harness; The housing is provided with a guide positioning column and at least one supporting limiting plane, the height of the supporting limiting plane is lower than the height of the top end of the metal pin, and the height of the guide positioning column is higher than the height of the top end of the metal pin.

2. A wiring harness connector for a thermosetting motor sensor according to claim 1, characterized in that: The housing comprises an embedding seat and an injection molding seat, the metal pin is embedded in the embedding seat and one end of the metal pin away from the wiring harness extends out of the embedding seat, and the wiring harness passes through the injection molding seat and is connected to the metal pin.

3. A wiring harness connector for a thermosetting motor sensor according to claim 2, characterized in that: The surface of the injection molding seat is provided with a limiting groove.

4. A wiring harness connector for a thermosetting motor sensor according to claim 3, characterized in that: The limiting groove is an annular groove connected end to end, and the limiting groove is circumferentially arranged on the surface of the injection molding seat.

5. The wiring harness connector for a thermosetting motor sensor according to claim 1, characterized in that: The guide positioning column and a support limiting plane are respectively arranged at two ends of the shell in the length direction.

6. A wiring harness connector for a thermosetting motor sensor according to claim 2, characterized in that: The guide positioning column is arranged at an end of the embedding seat away from the wiring harness.

7. The wiring harness connector for a thermosetting motor sensor according to claim 1, characterized in that: The guide positioning column is provided with a support limiting plane along the width direction of the shell.

8. The wiring harness connector for a thermosetting motor sensor according to claim 1, characterized in that: The metal pins and the wiring harness are connected to each other by crimping or welding.

9. The wiring harness connector for a thermosetting motor sensor according to claim 1, characterized in that: The shell is made of nylon material.

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