A terminal block support structure for a redundant drive-by-wire steering motor

Abstract

This utility model discloses a terminal block support structure for a redundant drive-by-wire steering motor, comprising a stator welding assembly and a terminal block support. The stator welding assembly has an insulating frame, and the terminal block support is positioned and assembled within the inner ring of the insulating frame. The outer ring of the insulating frame has multiple snap-fit ​​slots, and the outer sidewall of the terminal block support has at least three folded snaps formed therein, which snap into the snap-fit ​​slots. Multiple zigzag guide plates also extend upwards from the outer sidewall of the terminal block support. This utility model provides more stable assembly, is less prone to detachment, and achieves higher space utilization by integrally injection molding the terminal block to form the outer transition structure.

Description

Technical Field

[0001] This utility model relates to the field of steering motor technology, and in particular to a terminal block support structure for a redundant drive-by-wire steering motor. Background Technology

[0002] Currently, domestically produced automotive electric power steering motors all use terminal blocks to connect the internal windings of the motor to the ECU controller. These terminal blocks are generally integrated designs, with plastic encasing the internal copper components through injection molding. However, when designing the controller, customers often have a relatively large circumference at the motor's pin output location. For the motor terminal block structure, an adapter plate support is needed, which works in conjunction with the internal welding of the terminal block support to meet customer requirements. However, this secondary assembly structure of the adapter plate support is costly in two ways: firstly, it requires two sets of injection molds and more hardware molds; secondly, there are welding quality risks during internal resistance welding, as it's impossible to monitor and guarantee the welding strength of each copper component, leading to the risk of incomplete welds. Especially in some steering motors with limited internal space, where the motor's pin output is far from the controller's welding point and has a large circumference, while an adapter plate can meet the requirements, it occupies too much space and obstructs welding at other points, making an adapter plate structure unsuitable. Using a regular terminal block for conversion results in insufficient shock resistance, instability, and a risk of tipping over after assembly, potentially leading to detachment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a terminal block support structure for a redundant drive-by-wire steering motor. It is more stable in assembly and less prone to falling off. The external transfer structure is formed by integral injection molding of the terminal block, which has a higher space utilization rate.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A terminal block support structure for a redundant drive-by-wire steering motor, comprising a stator welding assembly and a terminal block support; The stator welding assembly has an insulating frame, and the terminal block support is positioned and assembled in the inner ring of the insulating frame. The outer ring of the insulating frame is provided with multiple snap-fit ​​slots, and the outer ring side wall of the terminal block support is provided with at least three folded snaps, which are snapped into the snap-fit ​​slots. Multiple zigzag-shaped guide plates extend upward from the outer ring sidewall of the terminal block support.

[0005] Furthermore, the inner ring of the insulating frame is provided with multiple positioning slots, and the bottom of the terminal block support is provided with multiple positioning blocks, which are limited and engaged in the positioning slots.

[0006] Furthermore, the bottom of the terminal block support is also provided with a right-angle limiting step, and the positioning block is disposed inside the right-angle limiting step, with the right-angle limiting step closely abutting against the inner ring of the insulating frame.

[0007] Furthermore, multiple conductive copper plates are arranged at intervals inside the terminal block support.

[0008] Furthermore, a folded copper strip is provided inside part of the folded guide plate, with the upper and lower ends of the folded copper strip exposed. Another part of the zigzag guide plate is provided with a zigzag transition copper sheet. The lower end of the zigzag transition copper sheet is connected to one end of the conductive copper plate, and the upper end of the zigzag transition copper sheet is exposed.

[0009] Furthermore, the zigzag guide plate is in the shape of a right-angled zigzag line, and extends upward from the side wall of the wiring plate support member, then outward, and then upward again to form the shape.

[0010] Furthermore, the folded buckle has a multi-segment bent shape.

[0011] Furthermore, the terminal block support is integrally injection molded.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects: 1. This utility model eliminates the adapter plate structure. Through an integrally injection-molded terminal block support and multiple zigzag guide plates extending upwards from its periphery, the zigzag direct-connect copper sheet, the zigzag adapter copper sheet, and the conductive copper plate are integrated into a single unit, achieving self-connection within the injection-molded part. This design is suitable for motor PIN locations with larger diameters. Compared to an adapter plate, it reduces space occupation and material costs, while fully utilizing the surrounding space within a limited area. Furthermore, it does not affect the welding of other points, ensuring monitoring of the welding status at each point and improving product quality and safety.

[0013] 2. This utility model only requires the assembly of one terminal block support, simplifying the assembly process; at the same time, through the snap-fit ​​of the outer folded buckle of the terminal block support and the snap-fit ​​groove on the outer ring of the insulating frame, as well as the snap-fit ​​positioning of the bottom positioning block of the terminal block support and the positioning groove on the inner ring of the insulating frame, the assembly of the terminal block support is more stable and reliable, preventing it from falling off, with stronger shock resistance, ensuring the stability of welding at each point, and reducing the risk of weld failure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall assembly structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the stator welding assembly according to an embodiment of the present invention; Figure 3This is a schematic diagram of the structure of the junction box support and conductive copper plate assembly according to an embodiment of the present invention; Figure 4 This is a front structural diagram of the wiring board support component according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the bottom structure of the terminal block support member according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the layout of the conductive copper plate in an embodiment of this utility model; Among them, 1. Stator welding assembly; 2. Terminal block support; 20. Folded buckle; 21. Folded guide plate; 22. Right angle limiting step; 23. Positioning block; 3. Insulating frame; 30. Buckle groove; 31. Positioning slot; 4. Conductive copper plate; 5. Folded direct connection copper sheet; 6. Folded adapter copper sheet. Detailed Implementation

[0015] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] like Figure 1-6 As shown, in this embodiment, a terminal block support structure for a redundant drive-by-wire steering motor is provided, which mainly consists of a stator welding assembly 1 and a terminal block support 2. The stator welding assembly 1 has an insulating frame 3, and the terminal block support 2 is positioned and assembled within the inner ring of the insulating frame 3.

[0017] To ensure stable assembly of the terminal block support 2, twelve snap-fit ​​slots 30 are provided on the outer ring of the insulating frame 3 in this embodiment. Three folded snaps 20 are formed on the side wall of the outer ring of the terminal block support 2. The three folded snaps 20 are evenly distributed circumferentially, and each folded snap 20 is snapped into the snap-fit ​​slot 30. The folded snaps 20 are multi-segmented to avoid interfering with other solder joints. At the same time, twelve positioning slots 31 are provided on the inner ring of the insulating frame 3. Four evenly distributed positioning blocks 23 are formed at the bottom of the terminal block support 2. Each positioning block 23 is locked into the positioning slot 31. In addition, a right-angle limiting step 22 is formed at the bottom of the terminal block support 2. The right-angle limiting step 22 is ring-shaped, and the positioning blocks 23 are set in the right-angle limiting step 22. During assembly, the right-angle limiting step 22 is tightly pressed against the top and side of the inner ring of the insulating frame 3. This makes the assembly of the terminal block support 2 more stable and reliable, prevents it from falling off, enhances its shock resistance, ensures the stability of welding at each point, and reduces the risk of desoldering.

[0018] To accommodate cases where the motor's PIN outlet diameter is large, six zigzag-shaped guide plates 21 extend upwards from the outer ring sidewall of the terminal block support 2 in this embodiment. Each zigzag-shaped guide plate 21 is a right-angled zigzag, extending upwards from the sidewall of the terminal block support 2, then outwards, and then upwards again. Furthermore, five conductive copper plates 4 are spaced vertically within the terminal block support 2. Three of the zigzag-shaped guide plates 21 contain zigzag direct-connecting copper sheets 5, with both ends of the zigzag direct-connecting copper sheets 5 exposed. The other three zigzag-shaped guide plates 21 contain zigzag transition copper sheets 6, the lower ends of which are connected to one end of each of the three conductive copper plates 4. This connection can be achieved through TOX riveting or welding, with TOX riveting being preferred as it is less prone to detachment, provides higher connection strength, and enhances shock resistance. The upper ends of the zigzag transition copper sheets 6 are exposed. Specifically, five conductive copper plates 4 are distributed in the inner ring, while three folded transition copper sheets 6 and three folded direct connection copper sheets 5 are located near the outer ring. The terminal block support 2 is integrally injection molded, thus encapsulating all the conductive copper plates 4, folded direct connection copper sheets 5, and folded transition copper sheets 6 into a single structure. This eliminates the need for an adapter plate, allowing for self-connection within the injection molded part. This adapts to situations where the motor's output PIN has a larger diameter, reducing space occupation and material costs compared to an adapter plate. It fully utilizes the surrounding space within a limited area, without affecting the welding of other points, ensuring monitoring of the welding status at each point, and improving product quality and safety.

[0019] In addition, this embodiment only requires the assembly of one terminal block support, which simplifies the assembly process, makes the process simple, has high stability and space utilization, can be adapted to a variety of motors, and has versatility.

[0020] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] The above specific embodiments further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wiring board support structure for a redundant steer-by-wire motor, characterized by: It includes a stator welding assembly (1) and a terminal block support (2); The stator welding assembly (1) has an insulating frame (3), and the terminal block support (2) is positioned and assembled in the inner ring of the insulating frame (3); The outer ring of the insulating frame (3) is provided with multiple buckle slots (30), and the outer ring side wall of the terminal block support (2) is provided with at least three folded buckles (20), which are fastened in the buckle slots (30); The outer ring sidewall of the terminal block support (2) is further formed with multiple zigzag guide plates (21).

2. The redundant steer-by-wire motor wiring board support structure of claim 1, wherein: The insulating frame (3) has multiple positioning slots (31) on its inner ring, and the wiring board support (2) has multiple positioning blocks (23) formed at its bottom. The positioning blocks (23) are limited and engaged in the positioning slots (31).

3. The redundant steer-by-wire motor wiring board support structure of claim 2, wherein: The bottom of the terminal block support (2) is also provided with a right-angle limiting step (22), and the positioning block (23) is set inside the right-angle limiting step (22). The right-angle limiting step (22) is closely attached to the inner ring of the insulating frame (3).

4. The redundant steer-by-wire motor wiring board support structure of claim 1, wherein: Multiple conductive copper plates (4) are arranged at intervals inside the terminal block support (2).

5. The redundant steer-by-wire motor wiring board support structure of claim 4, wherein: A folded straight copper sheet (5) is provided inside the folded guide plate (21), with the upper and lower ends of the folded straight copper sheet (5) exposed. Another part of the zigzag guide plate (21) is provided with a zigzag transition copper sheet (6), the lower end of the zigzag transition copper sheet (6) is connected to one end of the conductive copper plate (4), and the upper end of the zigzag transition copper sheet (6) is exposed.

6. The redundant steer-by-wire motor wiring board support structure of claim 1, wherein: The zigzag guide plate (21) is in the shape of a right-angled zigzag line, and extends upward from the side wall of the wiring plate support (2), then outward, and then upward again to form the shape.

7. The redundant steer-by-wire motor wiring board support structure of claim 1, wherein: The folded buckle (20) has a multi-segment folded shape.

8. The redundant steer-by-wire motor wiring board support structure of claim 1, wherein: The connector support (2) is integrally injection molded.

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