Signal sensor support structure

Abstract

The invention discloses a signal sensor support structure which comprises a first support, a second support connected with the first support and a copper bar arranged between the first support and the second support, and the first support and the second support are respectively formed through an injection molding process. According to the signal sensor support structure, the copper bar can be installed later, the plastic part of the sensor is designed into two independent support parts, independent injection molding is conducted, the injection molding process difficulty is lowered, meanwhile, impact of injection molding pressure on the copper bar can be avoided, the product percent of pass is higher, and the quality and cost of the parts are easier to control.

Description

Technical Field

[0001] The invention belongs to the field of motor component manufacturing, and in particular relates to a signal sensor bracket structure. Background Art

[0002] At present, for situations where the signal sensor conduction path is limited in length or the mechanism itself is limited in space, the solutions used to lead the motor position sensor to the controller are roughly as follows:

[0003] One is to integrate the position sensor PCBA (Printed Circuit Board Assembly) on the controller. This solution is suitable for occasions where the controller and ECU (electronic control unit) are close to each other.

[0004] For situations where the distance is far, the position sensor PCBA is generally connected to the signal sensor bracket through a PIN pin. The bracket is embedded with a PIN pin for signal transmission. The disadvantage of this solution is that the signal sensor bracket is difficult to injection mold and has a low pass rate. In particular, the connection between the PIN and the controller is prone to defects such as encapsulation and uneven height, which affects the stability of signal transmission and thus reduces system reliability. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a signal sensor bracket structure, the purpose of which is to reduce the manufacturing difficulty of the signal sensor and improve the qualification rate and reliability of the signal sensor component.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a signal sensor bracket structure, including a first bracket, a second bracket connected to the first bracket, and a copper busbar arranged between the first bracket and the second bracket, and the first bracket and the second bracket are respectively formed by injection molding process.

[0007] The copper busbar comprises a first connection portion matched with the control module and a second connection portion matched with the signal sensor printed circuit board, and the number of the copper busbars is ≥1.

[0008] The first connecting portion is a plane, and the second connecting portion is a needle-shaped structure.

[0009] The copper busbar may be an integral structure, or sections of the copper busbar may be connected by welding.

[0010] The copper busbar is directly mounted on the first bracket or the second bracket.

[0011] The first connecting portion is limited by a matching structure provided on the first bracket and the second bracket.

[0012] The copper busbar is fixed on the first bracket or the second bracket via a barb structure, and the number of the barb structures is ≥1.

[0013] A plurality of copper bars are provided, and two adjacent copper bars are separated by ribs provided on the first bracket or the second bracket.

[0014] The first bracket and the second bracket are connected through the cooperation of the hole and the boss.

[0015] The first bracket is provided with a limiting structure for positioning the signal sensor printed circuit board, and the second bracket is provided with a positioning boss or a positioning hole for cooperating with the motor structure to achieve positioning.

[0016] The signal sensor bracket structure of the present invention can realize the post-installation of the copper busbar. The plastic part of the sensor is designed as two independent bracket parts, which are injection molded separately, reducing the difficulty of the injection molding process and avoiding the impact of the injection molding pressure on the copper busbar, so that the product qualification rate is higher and the quality and cost of components are easier to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 is a structural schematic diagram of the signal sensor bracket structure of the first embodiment;

[0019] Figure 2 is an exploded schematic diagram of the signal sensor bracket structure of the first embodiment;

[0020] Figure 3 is a schematic structural diagram of a second bracket;

[0021] Figure 4 is a schematic structural diagram of a first bracket;

[0022] Figure 5 is a structural schematic diagram of the signal sensor bracket structure of the second embodiment;

[0023] Marked in the figure are: 1, second bracket; 2, copper busbar; 3, first bracket; 4, signal sensor printed circuit board; 1-1, second positioning structure; 1-2, first positioning hole; 1-3, positioning boss; 1-4, second positioning hole; 2-1, barb structure; 2-2, first mating end; 2-3, second mating end; 3-1, first positioning structure; 3-2, third positioning hole. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0025] Embodiment 1

[0026] like Figures 1 to 4 As shown, this embodiment provides a signal sensor bracket structure, including a first bracket 3, a second bracket 1 connected to the first bracket 3, and a copper bus 2 arranged between the first bracket 3 and the second bracket 1, and the first bracket 3 and the second bracket 1 are respectively formed by injection molding process.

[0027] In this embodiment, the first bracket 3 and the second bracket 1 are connected by the cooperation of the hole and the boss. A first positioning structure 3-1 is provided on the first bracket 3, and a second positioning structure 1-1 is provided on the second bracket 1. The first positioning structure 3-1 cooperates with the second positioning structure 1-1 to play a positioning role when the first bracket 3 and the second bracket 1 are assembled. If the first positioning structure 3-1 is a positioning hole provided on the first bracket 3, then the second positioning structure 1-1 is a boss provided on the second bracket 1, and the second positioning structure 1-1 and the second bracket 1 are integrally injection molded, and the second positioning structure 1-1 is embedded in the first positioning structure 3-1 during assembly; if the first positioning structure 3-1 is a boss provided on the first bracket 3, and the first positioning structure 3-1 and the first bracket 3 are integrally injection molded, then the second positioning structure 1-1 is a positioning hole provided on the second bracket 1, and the first positioning structure 3-1 is embedded in the second positioning structure 1-1 during assembly.

[0028] The copper busbar 2 includes a first connection portion connected to the control module and a second connection portion connected to the signal sensor printed circuit board 4. The number of the copper busbar 2 is ≥1. In this embodiment, the first connection portion and the second connection portion are an integral structure, the first connection portion is a plane, and the second connection portion is a needle-shaped structure.

[0029] like Figure 2 As shown, the copper busbar 2 is fixed on the first bracket 3 through the barb structure 2-1, and the first bracket 3 is provided with a third positioning hole 3-2 for the barb structure 2-1 to be embedded. During assembly, each barb structure 2-1 provided on the copper busbar 2 is respectively embedded in a third positioning hole 3-2 provided on the first bracket 3, and the first positioning structure 3-1 cooperates with the second positioning structure 1-1. By melting the first positioning structure 3-1 or the second positioning structure 1-1, the first bracket 3 and the second bracket 1 are connected and fixed, and the copper busbar 2 is fixed between the first bracket 3 and the second bracket 1. Finally, the entire signal sensor bracket structure is connected to the motor structure through the positioning boss 1-3 and the first positioning hole 1-2.

[0030] like Figure 3 As shown, the positioning boss 1 - 3 and the first positioning hole 1 - 2 are arranged on the second bracket 1 , and the positioning boss 1 - 3 and the first positioning hole 1 - 2 are located at the same end of the second bracket 1 , and the positioning boss 1 - 3 protrudes toward the outside of the second bracket 1 .

[0031] In this embodiment, the copper busbar 2 is an integrated structure, and is fixed to the first bracket 3 by the interference fit between the third positioning hole 3-2 and the barb structure 2-1. The number of the barb structure 2-1 and the third positioning hole 3-2 are both ≥1, and the number of the copper busbar 2 is ≥1.

[0032] like Figure 2 As shown, a plurality of copper bars 2 are provided, and two adjacent copper bars 2 are separated by ribs provided on the first bracket 3. A limiting structure is provided on the first bracket 3 and the second bracket 1 to ensure the flatness between the first connecting portion of the copper bar 2 and the plane connected to the control module. A limiting structure is provided on the first bracket 3, and the limiting structure is used to assemble and position the second connecting portion of the copper bar 2 and the signal sensor printed circuit board 4.

[0033] In this embodiment, after the first bracket 3 and the second bracket 1 are assembled and positioned by the first positioning structure 3-1 and the second positioning structure 1-1, the second positioning structure 1-1 is melted in a high-temperature melting form to achieve a stable connection between the first bracket 3 and the second bracket 1. Compared with the sensor structure in which the copper bar 2 is an insert injection molded structure, this structure realizes the post-installation of the copper bar 2, and the plastic part of the sensor is designed as two independent upper and lower parts, which are injection molded separately, reducing the difficulty of the injection molding process, and at the same time avoiding the impact of the injection molding pressure on the copper bar 2, so that the product qualification rate is higher, and the quality and cost of parts are easier to control.

[0034] The entire bracket structure is positioned by the positioning boss 1-3 on the second bracket 1 and the motor structure, and then fixed to the motor structure by riveting through the two first positioning holes 1-2, so that the assembly is simple and reliable.

[0035] Embodiment 2

[0036] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that the copper busbar 2 is a segmented structure, which is fixed to the third positioning hole 3-2 and the second positioning hole on the first bracket 3 and the second bracket 1 respectively, and each segment of the copper busbar 2 is welded.

[0037] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A signal sensor bracket structure, characterized in that: It comprises a first bracket, a second bracket connected to the first bracket and a copper bar arranged between the first bracket and the second bracket. The first bracket and the second bracket are respectively formed by injection molding process.

2. The signal sensor support structure according to claim 1, characterized in that: The copper busbar comprises a first connection portion matched with the control module and a second connection portion matched with the signal sensor printed circuit board, and the number of the copper busbars is ≥1.

3. The signal sensor support structure according to claim 2, characterized in that: The first connecting portion is a plane, and the second connecting portion is a needle-shaped structure.

4. The signal sensor support structure according to claim 2, characterized in that: The copper busbar is an integrated structure and is directly mounted on the first bracket or the second bracket.

5. The signal sensor support structure according to claim 4, characterized in that: The first connecting portion is limited by a matching structure provided on the first bracket and the second bracket.

6. The signal sensor support structure according to claim 2, characterized in that: The copper busbar is a segmented structure, and each segment of the copper busbar is connected by welding.

7. The signal sensor support structure according to any one of claims 1 to 6, characterized in that: The copper busbar is fixed on the first bracket or the second bracket via a barb structure, and the number of the barb structures is ≥1.

8. The signal sensor support structure according to any one of claims 1 to 6, characterized in that: A plurality of copper bars are provided, and two adjacent copper bars are separated by ribs provided on the first bracket or the second bracket.

9. The signal sensor support structure according to any one of claims 1 to 6, characterized in that: The first bracket and the second bracket are connected through the cooperation of the hole and the boss.

10. The signal sensor support structure according to any one of claims 1 to 6, characterized in that: The first bracket is provided with a limiting structure for positioning the signal sensor printed circuit board, and the second bracket is provided with a positioning boss or a positioning hole for cooperating with the motor structure to achieve positioning.

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