Wiring board wire outlet structure for steer-by-wire redundant motor

Abstract

The utility model discloses a wiring board wire outlet structure for a steer-by-wire redundant motor, which relates to the technical field of motor control and comprises a wiring board supporting assembly and a stator fusion welding assembly. A first electric wire grounding end and a second electric wire grounding end are arranged at the concave position of the side wall of the supporting body, a wiring board threading pipe is arranged at the protruding position of the top of the supporting body, a guide groove is formed in the top of the supporting body, receding openings are formed in the protruding positions of the side wall of the supporting body, and positioning columns are arranged in the receding openings. A buckle is arranged at the downward end part of the positioning column; the stator fusion welding assembly comprises an insulating framework, enameled wires and silicon steel sheets, wherein the enameled wires and the silicon steel sheets are arranged on the insulating framework. The wiring board supporting structure of the motor is improved in design under the condition that the safety of the motor is ensured, so that the cost is reduced, and the structure is reliable.

Description

Technical Field

[0001] This utility model relates to the field of motor control technology, specifically to a wiring board output structure for a drive-by-wire redundant motor. Background Art

[0002] Currently, domestically produced automotive electric power steering motors use copper components welded to the copper wires of the windings for the terminal block. The three-phase UVW of the motor are also in copper component form, which is then welded to the controller PCB board. Because the redundant motor terminal block support assembly contains two sets of copper components (U, V, W, GND), the processing and manufacturing costs are high. Some even have adapter board structures, making the cost even higher.

[0003] The terminal block structure of the motor winding is of paramount importance. Two existing structural methods exist: one is an integrated injection molding of the terminal block and copper terminals, offering high overall safety and ease of installation and wiring, but at a relatively higher cost; the other is direct wiring using copper terminals fixed to an insulating frame, significantly reducing component costs, but with a more complex installation and wiring process, increased labor costs, and lower safety compared to the former. To reduce costs while meeting safety requirements, a new terminal block wiring structure for a drive-by-wire steering redundant motor is proposed. Utility Model Content

[0004] In view of the problems existing in the current motor terminal block wiring structure, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a wiring board output structure for a redundant motor for drive-by-wire steering, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A terminal block cable outlet structure for a redundant steering motor with wire control includes a terminal block support assembly and a stator welding assembly. The terminal block support assembly is disposed on top of the stator welding assembly. The terminal block support assembly includes a support body, which is a ring structure. A first wire grounding terminal and a second wire grounding terminal are provided in the recessed part of the side wall of the support body. A terminal block through-tube is provided on the protruding part of the top of the support body. A guide groove is provided on the top of the support body corresponding to the position of the terminal block through-tube. A clearance opening is provided on the protruding part of the side wall of the support body, and a positioning post is provided inside the clearance opening. A buckle is provided at the downward end of the positioning post. The stator welding assembly includes an insulating frame, enameled wire, and silicon steel sheet. The enameled wire and silicon steel sheet are both disposed on the insulating frame.

[0008] Preferably, the wiring tube of the terminal block is made of insulating injection molded part, and the diameter of the upper end of the wiring tube is smaller than the diameter of the lower end.

[0009] Preferably, both the first wire grounding terminal and the second wire grounding terminal are made of upwardly protruding bent copper parts.

[0010] Preferably, reinforcing ribs are provided between the two sides of the positioning column and the bottom of the supporting body.

[0011] Furthermore, the top of the insulating frame is provided with a slot that cooperates with the positioning post and the buckle.

[0012] Preferably, both the wiring conduit and the insulating frame of the terminal block are made of PBT components.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] This invention, while ensuring the safe operation of the motor, improves the design of the terminal block, allowing copper wires to easily pass through the terminal block's conduit and guide groove and be fixed in position, thereby reducing costs. The advantages are as follows: reduced cost, directly using enameled wire instead of copper parts; good guidance, easily completing the installation of enameled wire; reliable structure, the terminal block's conduit design has sufficient wall thickness to withstand greater pressure, high insulation performance, safety and stability, and strong versatility, applicable to multiple product structures. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 For the present utility model Figure 1 A three-dimensional schematic diagram of the middle connector support assembly;

[0018] Figure 3 For the present utility model Figure 2 A bottom-view 3D schematic diagram of the center connector support assembly;

[0019] Figure 4 For the present utility model Figure 1 A three-dimensional schematic diagram of the stator welding assembly.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Terminal block support assembly; 11. Support body; 12. First wire grounding terminal; 13. Second wire grounding terminal; 14. Terminal block conduit; 15. Guide groove; 16. Clearance opening; 17. Positioning post; 18. Clip; 19. Reinforcing rib; 2. Stator welding assembly; 21. Insulation frame; 22. Enamelled wire; 23. Silicon steel sheet. DETAILED DESCRIPTION

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1 The diagram shows a terminal block output structure for a redundant motor with steer-by-wire control, including a terminal block support assembly 1 and a stator welding assembly 2, with the terminal block support assembly 1 disposed on top of the stator welding assembly 2.

[0024] like Figure 1-3 As shown, the terminal block support assembly 1 includes a support body 11, which is a ring structure. A first grounding terminal 12 and a second grounding terminal 13 are provided in the recessed part of the side wall of the support body 11. Both the first grounding terminal 12 and the second grounding terminal 13 are upwardly protruding bent copper parts. A terminal block conduit 14 is provided at the top protrusion of the support body 11. The terminal block conduit 14 is an insulating injection molded part made of PBT (polybutylene terephthalate). PBT material has high insulation properties, and the upper diameter of the terminal block conduit 14 is smaller than the lower diameter. The wall thickness of the terminal block conduit 14 is large enough to withstand greater pressure, while also having high insulation and being safe and stable. A guide groove 15 is provided on the top of the support body 11, corresponding to the position of the terminal block conduit 14. Each side wall protrusion of the support body 11 is provided with a clearance opening 16, and a positioning post 17 is provided inside the clearance opening 16. A buckle 18 is provided at the downward end of the positioning post 17. Reinforcing ribs 19 are provided between the two sides of the positioning post 17 and the bottom of the support body 11. The reinforcing ribs 19 can strengthen the connection between the positioning post 17 and the support body 11, increasing the strength of the positioning post 17.

[0025] like Figure 1 and 4As shown, the stator welding assembly 2 includes an insulating frame 21, enameled wire 22, and silicon steel sheet 23. The insulating frame 21 is made of PBT (polybutylene terephthalate), which can provide stable support for the stator winding. It has good thermal stability and can work normally under certain high-temperature environments. The enameled wire 22 and silicon steel sheet 23 are both set on the insulating frame 21. The top of the insulating frame 21 is provided with a slot that cooperates with the positioning post 17 and the buckle 18. When the support body 11 is installed on the top of the insulating frame 21, the positioning post 7 together with the buckle 18 is inserted into the slot. Then, through the snap-fit ​​of the buckle 18, the support body 11 and the insulating frame 21 are fixedly snapped together.

[0026] In use, the terminal block support assembly 1 is placed on top of the stator welding assembly 2, and the positioning post 17 at the bottom of the support body 11 is inserted into the slot at the top of the insulating frame 21, so that the buckle 18 engages with the slot, so that the terminal block support assembly 1 is securely installed on top of the stator welding assembly 2. Then, copper wire is inserted through the terminal block conduit 14 and the guide groove 15 and fixed in position, thereby reducing costs. At the same time, the enameled wire 22 replaces the copper parts, reducing costs. The terminal block conduit 14 is designed with sufficient wall thickness to withstand greater pressure, has high insulation performance, is safe and stable, and can be used in multiple product structures.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A terminal block cable output structure for a redundant motor with drive-by-wire steering, comprising a terminal block support assembly (1) and a stator welding assembly (2), characterized in that: The terminal block support assembly (1) is disposed on top of the stator welding assembly (2); The junction box support assembly (1) includes a support body (11), which is a ring structure. The side wall of the support body (11) is recessed and has a first wire grounding end (12) and a second wire grounding end (13). The top of the support body (11) is raised and has a junction box through tube (14). The top of the support body (11) is provided with a guide groove (15) corresponding to the position of the junction box through tube (14). The side wall of the support body (11) is raised and has a clearance opening (16). The clearance opening (16) is provided with a positioning post (17). The downward end of the positioning post (17) is provided with a buckle (18). The stator welding assembly (2) includes an insulating frame (21), an enameled wire (22), and a silicon steel sheet (23), wherein the enameled wire (22) and the silicon steel sheet (23) are both disposed on the insulating frame (21).

2. The terminal block output structure for a redundant motor for drive-by-wire steering according to claim 1, characterized in that: The wiring tube (14) of the terminal block is made of insulating injection molding, and the diameter of the upper end of the wiring tube (14) is smaller than the diameter of the lower end.

3. The wiring structure of the terminal block for a redundant motor for drive-by-wire steering according to claim 1, characterized in that: Both the first wire grounding terminal (12) and the second wire grounding terminal (13) are made of bent copper parts with upward protrusion.

4. The terminal block output structure for a redundant motor for drive-by-wire steering according to claim 1, characterized in that: Reinforcing ribs (19) are provided between the two sides of the positioning column (17) and the bottom of the supporting body (11).

5. The wiring structure of the terminal block for a redundant motor for drive-by-wire steering according to claim 1, characterized in that: The top of the insulating frame (21) is provided with a slot that cooperates with the positioning post (17) and the buckle (18).

6. The terminal block output structure for a redundant motor for drive-by-wire steering according to claim 1, characterized in that: The wiring tube (14) and the insulating frame (21) of the terminal block are both made of PBT.

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