Motor lead terminal and MGU plug wire assembly test tool

Abstract

The utility model relates to the field of MGU executors, and discloses a motor lead terminal and MGU plug wire assembly test tooling, the lead terminal is formed by bending a metal conducting strip and comprises a clamping area (1) and a connecting area (2), the clamping area (1) is provided with a clamping groove (3), the connecting area (2) is provided with a plug wire groove (4), one side of the plug wire groove (4) is a limiting area (5), the other side of the plug wire groove (4) is an elastic supporting area (6), the clamping groove (3) is transversely arranged, and the elastic supporting area (6) is arranged in the clamping groove (3). The wire inserting groove (4) is longitudinally arranged, and the upper end of the wire inserting groove (4) is limited by the clamping area (1). The lead terminal is reliable in connection and stable in positioning, and can be automatically assembled.

Description

Technical Field

[0001] This utility model relates to the field of parking brakes, and more particularly to testing fixtures for motor wire terminals and MGU wiring assemblies. Background Technology

[0002] CN218633513U discloses a terminal block for a motor and a stator assembly and motor using the same. It provides a structural style for the motor terminal block, but it does not meet the requirements of MGU actuator motors. Existing terminal blocks for MGU motors generally use direct soldering of wires for wiring. This approach has two main problems: unstable wiring, difficulty in wire management, and challenges in automating the soldering process. Furthermore, the strength after soldering is inconsistent, with variations even within the same batch, and there is no separate testing method. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing motor wire terminals.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0005] The motor wire terminal is formed by bending a metal conductive sheet. It includes a clamping area and a connecting area. The clamping area has a clamping groove, and the connecting area has a wire insertion groove. One side of the wire insertion groove is a limiting area, and the other side is an elastic support area. The clamping groove is arranged horizontally, and the wire insertion groove is arranged vertically. The upper end of the wire insertion groove is limited by the clamping area.

[0006] Preferably, the clamping area is formed by piece one, the connecting area is formed by piece two, a connecting slope is formed at the connection between piece one and piece two, and a height difference is formed between piece one and piece two. Both sides of piece one are rolled inward to form a semi-circular limiting cylinder, and the end face of the limiting cylinder is formed as the upper limit surface of the insertion groove. A groove is opened in the middle of piece two, and the groove is located directly below the limiting cylinder. An elastic piece is led out from the edge of the groove into the groove. The height of the elastic end face of the elastic piece is higher than the height of the upper end face of piece one. The upper end face of the elastic piece and the upper end face of piece one are the lower limit surface of the insertion groove.

[0007] Preferably, the second piece includes a main piece and a transition piece. The slot, elastic piece, limiting cylinder, and wire insertion slot are disposed on the main piece. One end of the transition piece is connected to the connecting piece. The edge of the transition piece at the connection with the main piece is provided with a flange. The flange transitions to the root of the limiting cylinder and is disposed perpendicular to the transition piece. The limiting cylinder includes a vertical piece portion at the root and a semi-circular portion extending from the vertical piece portion. The semi-circular portion has an opening facing downwards, and the flange is integrally connected to the vertical piece portion.

[0008] Preferably, the elastic sheet is a V-shaped sheet with an upward protrusion. The upper end face of the elastic sheet is provided with a protrusion located between the two limiting cylinders. An operating port is opened in the middle of the first sheet. The fixed part of the clamping area is the rear side of the operating port. Extending edges extend on both sides of the fixed part. The cross-sectional shape formed by the extending edges and the fixed part is a V-shape.

[0009] MGU wiring assembly test fixture, the wiring assembly includes two motor wire terminals, the wire terminals are connected by wires, the wire terminals are the motor wire terminals mentioned above;

[0010] The two ends of the wire are pressed into the clamping groove, and the device also includes two clamping devices, which are respectively arranged at both ends of the wire terminal. The clamping device includes a mounting head and a connecting head. Two clamping arms are installed on the connecting head. One end of the two clamping arms is hinged to the connecting head, and the other end is set opposite to each other with a gap reserved. An adjusting post is installed on the clamping arm. The adjusting post passes through the two clamping arms and a support spring is sleeved on the adjusting post. The two ends of the support spring are supported on the two clamping arms under the action of elasticity. One end of the adjusting post is threaded to one of the clamping arms, and the other end of the adjusting post passes through a hole opened in the other clamping arm. An adjusting lever is installed on the adjusting post. By rotating the adjusting post, the two clamping arms are rotated, and the gap at one end of the two clamping arms is tightened to clamp the wire terminal.

[0011] Preferably, the wire terminal is formed by bending a metal conductive sheet, including a clamping area and a connecting area. The clamping area has a clamping groove, and the connecting area has a wire insertion groove. One side of the wire insertion groove is a limiting area, and the other side is an elastic support area. The clamping groove is arranged horizontally, and the wire insertion groove is arranged vertically. The upper end of the wire insertion groove is limited by the clamping area.

[0012] The clamping area is formed by plate one, and the connecting area is formed by plate two. A connecting slope is formed at the connection between plate one and plate two. Plate one and plate two have a height difference. Both sides of plate one are rolled inward to form a semi-circular limiting cylinder. The end face of the limiting cylinder forms the upper limit surface of the insertion groove. A slot is opened in the middle of plate two. The slot is located directly below the limiting cylinder. An elastic piece is led out from the edge of the slot into the slot. The height of the elastic end face of the elastic piece is higher than the height of the upper end face of plate one. The upper end face of the elastic piece and the upper end face of plate one form the lower limit surface of the insertion groove.

[0013] The second piece includes a main piece and a transition piece. The slot, elastic piece, limiting cylinder, and wire insertion slot are set on the main piece. One end of the transition piece is connected to the connecting piece. The edge of the transition piece where it connects to the main piece is provided with a flange. The flange transitions to the root of the limiting cylinder and is set perpendicular to the transition piece. The limiting cylinder includes a vertical piece part at the root and a semi-circular part extending from the vertical piece part. The semi-circular part has an opening facing downwards. The flange is connected to the vertical piece part as a whole. The clamp is clamped at the position of the transition piece.

[0014] Preferably, the clamping arm is U-shaped and includes a connecting arm connected to the connector, a clamping part, and a mounting part connecting the connecting arm and the clamping part. The connecting arm and the clamping part are arranged in parallel. The outer side of the clamping part near the gap is beveled, and the two clamping parts form a relief groove near the gap. A threaded hole is opened on the mounting part of one clamping arm, and a through hole is opened on the mounting part of the opposite clamping arm. The connecting arms of the two clamping arms are initially aligned in a straight line, the clamping parts of the two clamping arms are initially aligned in a straight line, and the mounting parts of the two clamping arms are arranged in parallel.

[0015] Preferably, one clamping arm has a slot at the end of its connecting arm, the other clamping arm has a insert at the end of its connecting arm, and the connector has a socket at the end of its connector. The insert is inserted into the slot, and the insert and the slot are located inside the socket. The socket, the slot, and the insert are connected by a pin, and the two connecting arms can rotate around the pin.

[0016] Preferably, the elastic sheet is a V-shaped sheet with an upward protrusion. The upper end face of the elastic sheet is provided with a protrusion located between the two limiting cylinders. An operating port is opened in the middle of the first sheet. The fixed part of the clamping area is the rear side of the operating port. Extending edges extend on both sides of the fixed part. The cross-sectional shape formed by the extending edges and the fixed part is a V-shape.

[0017] Compared with existing technologies, this solution has the following advantages: the wire terminals designed in this solution can be directly plugged into the coil pins, and the structural design has a reliable solder stacking area, which increases the welding strength while preventing solder overflow, thereby ensuring the reliability of the welding. Moreover, the connection structure is reliable and can be automated for welding. The testing process is safe and reliable, thereby controlling and testing the performance of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the wire terminal structure.

[0019] Figure 2 This is a schematic diagram of the wire terminal structure.

[0020] Figure 3 This is a schematic diagram of the wire terminal structure.

[0021] Figure 4 This is a schematic diagram of the test fixture.

[0022] The numbers shown in the diagram are as follows: 1—Clamping area, 2—Connecting area, 3—Clamping groove, 4—Wire insertion groove, 5—Limiting area, 6—Elastic support area, 7—Plate 1, 8—Plate 2, 9—Connecting inclined surface, 10—Limiting cylinder, 11—Upper limit surface, 12—Groove, 13—Elastic plate, 14—Main plate, 15—Transition plate, 16—Flange, 17—Vertical plate section, 18—Semi-circular section, 19—Protrusion, 20—Operating port, 21—Fixing section, 22—Extension edge, 23—Mounting head, 24—Connecting head, 26—Gap, 27—Adjusting column, 28—Supporting spring, 29—Threaded hole, 30—Through hole, 31—Allowing groove, 32—Adjusting lever, 33—Connecting arm, 34—Clamping part, 35—Mounting part. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described.

[0025] Example 1

[0026] The motor wire terminal is formed by bending a metal conductive sheet. It includes a clamping area 1 and a connecting area 2. The clamping area 1 has a clamping groove 3, and the connecting area 2 has a wire insertion groove 4. One side of the wire insertion groove 4 is a limiting area 5, and the other side is an elastic support area 6. The clamping groove 3 is arranged laterally, and the wire insertion groove 4 is arranged longitudinally. The upper end of the wire insertion groove 4 is limited by the clamping area 1. The motor wire terminal is a copper sheet structure. Copper has excellent conductivity. After the wire is inserted into the clamping groove 3, it is clamped by a clamp. The wire insertion groove 4 is used to connect to the motor's wiring terminal. One end of the wiring terminal is a sheet structure, and the wiring terminal can be directly inserted into the wire insertion groove 4 for insertion and positioning.

[0027] The clamping area 1 is formed by piece 7, and the connecting area 2 is formed by piece 8. A connecting slope 9 is formed at the connection between piece 7 and piece 8. The height difference between piece 7 and piece 8 is to ensure that the insertion can be limited, and that there is a clamping area when clamping is detected, so as to facilitate clamping and positioning.

[0028] Both sides of piece 8 are bent inwards towards the center to form semi-circular limiting cylinders 10. Clearly, there are two limiting cylinders 10, one on each side. The end face of the limiting cylinder 10 forms the upper limiting surface 11 of the insertion slot 4, and the end face of the limiting cylinder 10 is parallel to piece 8. A slot 12 is opened in the middle of piece 8, located directly below the limiting cylinder 10. An elastic piece 13 extends from the edge of the slot 12 into the slot 12. Clearly, the elastic piece 13 is also part of the wire terminal and is also a copper sheet structure. The elastic piece 13 protrudes upwards 19, and the height of its elastic end face is higher than the height of the upper end face of piece 7. The upper end face of the elastic piece 13 and the upper end face of piece 7 form the lower limiting surface of the insertion slot 4.

[0029] The second piece 8 includes a main piece 14 and a transition piece 15. The slot 12, elastic piece 13, limiting cylinder 10, and insertion slot 4 are disposed on the main piece 14. The transition piece 15 is connected to the connecting piece at one end. The edge of the transition piece 15 where it connects to the main piece 14 is provided with a flange 16. The flange 16 transitions to the root of the limiting cylinder 10 and is perpendicular to the transition piece 15. The limiting cylinder 10 includes a vertical piece portion 17 at the root and a semi-circular portion 18 extending from the vertical piece portion 17. The semi-circular portion 18 has an opening facing downwards. The flange 16 is integrally connected to the vertical piece portion 17. The flanges 16 on both sides of the transition piece 15 form a figure-eight opening. The flanges 16 and the straight piece portion form a limiting area 5 to ensure the reliability of the welding.

[0030] The elastic sheet 13 is a "V" shape with an upward protrusion 19. The upper end surface of the elastic sheet 13 is provided with a protrusion 19, which is located between the two limiting cylinders 10. An operation port 20 is opened in the middle of the sheet 7. The fixed part 21 of the clamping area 1 is the rear side of the operation port 20. Extending edges 22 extend from both sides of the fixed part 21. The cross-sectional shape formed by the extending edges 22 and the fixed part 21 is a "V" shape.

[0031] During installation, the motor coil terminals are inserted into the insertion slots and secured by the elastic sheet 13 and the limiting cylinder 10 to ensure initial connection strength. The connection edges are then welded in place. A clamping block is inserted into the limiting cylinder 10.

[0032] The main piece 14 facing the limiting cylinder 10 is provided with a protrusion 121, which protrudes on the front and back of the main piece 14.

[0033] Example 2

[0034] This embodiment discloses a test fixture for an MGU wiring assembly. The wiring assembly includes two motor wire terminals, which are connected by wires. The wire terminals are the aforementioned motor wire terminals.

[0035] Both ends of the wire are pressed into the clamping groove 3, so during installation, the wire terminals can be directly inserted into the motor to achieve connection.

[0036] The device also includes two clamping devices, one at each end of the wire terminal. Each clamping device includes a mounting head 23 and a connecting head 24. The connecting head 24 has two clamping arms, one end of which is hinged to the connecting head 24, and the other ends are positioned opposite each other with a pre-existing gap 26. An adjusting post 27 is mounted on each clamping arm, passing through the two clamping arms. A support spring 28 is fitted onto the adjusting post 27, with both ends of the spring supporting the two clamping arms under elastic force. One end of the adjusting post 27 is threaded to one of the clamping arms, and the other end protrudes from a hole in the other clamping arm. An adjusting lever 32 is mounted on the adjusting post 27. Rotating the adjusting post 27 causes the two clamping arms to rotate, simultaneously tightening the gap 26 at one end of each clamping arm to clamp the wire terminal. This clamping method is similar to a scissor clamp, ensuring reliable clamping. The clamping arms and the wire terminal are in surface contact, preventing the wire terminal from being broken.

[0037] The wire terminal is formed by bending a metal conductive sheet, including a clamping area 1 and a connecting area 2. The clamping area 1 has a clamping groove 3, and the connecting area 2 has a wire insertion groove 4. One side of the wire insertion groove 4 is a limiting area 5, and the other side is an elastic support area 6. The clamping groove 3 is arranged horizontally, and the wire insertion groove 4 is arranged vertically. The upper end of the wire insertion groove 4 is limited by the clamping area 1.

[0038] Clamping area 1 is formed by piece 7, connecting area 2 is formed by piece 8, connecting slope 9 is formed at the connection of piece 7 and piece 8, and there is a height difference between piece 7 and piece 8. Both sides of piece 7 are rolled inward to form a semi-circular limiting cylinder 10. The end face of the limiting cylinder 10 is formed as the upper limit surface 11 of the insertion groove 4. A slot 12 is opened in the middle of piece 8. The slot 12 is located directly below the limiting cylinder 10. An elastic piece 13 is led out from the edge of the slot 12. The elastic piece 13 protrudes upward 19. The height of the elastic end face is higher than the height of the upper end face of piece 7. The upper end face of the elastic piece 13 and the upper end face of piece 7 are the lower limit surface of the insertion groove 4.

[0039] Part 2 includes a main piece 14 and a transition piece 15. The slot 12, elastic piece 13, limiting cylinder 10, and insertion slot 4 are disposed on the main piece 14. The transition piece 15 is connected to the connecting piece at one end. The edge of the transition piece 15 where it connects to the main piece 14 is provided with a flange 16. The flange 16 transitions to the root of the limiting cylinder 10 and is disposed perpendicular to the transition piece 15. The limiting cylinder 10 includes a vertical piece portion 17 at the root and a semi-circular portion 18 extending from the vertical piece portion 17. The semi-circular portion 18 has an opening facing downward. The flange 16 is connected to the vertical piece portion 17 as a whole. The clamp 26 is clamped at the position of the transition piece 15.

[0040] The clamping arm is U-shaped and includes a connecting arm 33 connected to the connector 24, a clamping part 34, and a mounting part 35 connecting the connecting arm 33 and the clamping part 34. The connecting arm 33 and the clamping part 34 are arranged in parallel. The outer side of the clamping part 34 near the gap 26 is inclined, and the two clamping parts 34 form a relief groove 31 near the gap 26. A threaded hole 29 is opened on the mounting part 35 of one clamping arm, and a through hole 30 is opened on the mounting part 35 of the other clamping arm. The connecting arms 33 of the two clamping arms are initially in the same straight line, the clamping parts 34 of the two clamping arms are initially in the same straight line, and the mounting parts 35 of the two clamping arms are arranged in parallel.

[0041] The connecting arm 33 of one clamping arm is provided with a slot at its end, the connecting arm 33 of the other clamping arm is provided with a insert at its end, and the connector 24 is provided with a socket at its end. The insert is inserted into the slot, and the insert and the slot are located inside the socket. The socket, the slot and the insert are connected by a pin, and the two connecting arms 33 can rotate around the pin.

[0042] The elastic sheet 13 is a "V" shape with an upward protrusion 19. The upper end face of the elastic sheet 13 is provided with a protrusion 19, which is located between the two limiting cylinders 10. The middle part of the sheet 7 is provided with an operation port 20. The fixed part 21 of the clamping area 1 is the rear side of the operation port 20. The two sides of the fixed part 21 have extension edges 22. The cross-sectional shape formed by the extension edges 22 and the fixed part 21 is a "V" shape.

Claims

1. A motor wire terminal, characterized in that: The wire terminal is formed by bending a metal conductive sheet, including a clamping area (1) and a connecting area (2). The clamping area (1) has a clamping groove (3), and the connecting area (2) has a wire insertion groove (4). One side of the wire insertion groove (4) is a limiting area (5), and the other side is an elastic support area (6). The clamping groove (3) is arranged horizontally, and the wire insertion groove (4) is arranged vertically. The upper end of the wire insertion groove (4) is limited by the clamping area (1).

2. A motor wire terminal according to claim 1, characterized in that: The clamping area (1) is formed by piece 1 (7), the connecting area (2) is formed by piece 2 (8), a connecting slope (9) is formed at the connection between piece 1 (7) and piece 2 (8), and a height difference is formed between piece 1 (7) and piece 2 (8). Both sides of piece 1 (7) are rolled inward to form a semi-circular limiting cylinder (10). The end face of the limiting cylinder (10) is formed as the upper limit surface (11) of the insertion groove (4). A slot (12) is opened in the middle of piece 2 (8). The slot (12) is located directly below the limiting cylinder (10). An elastic piece (13) is led out from the edge of the slot (12). The elastic piece (13) protrudes upward (19). The height of the elastic end face is higher than the height of the upper end face of piece 1 (7). The upper end face of the elastic piece (13) and the upper end face of piece 1 (7) are the lower limit surface of the insertion groove (4).

3. A motor wire terminal according to claim 2, characterized in that: The second piece (8) includes a main piece (14) and a transition piece (15). The slot (12), elastic piece (13), limiting cylinder (10) and wire insertion slot (4) are arranged on the main piece (14). One end (7) of the transition piece (15) is connected to the connecting piece. The edge of the transition piece (15) connected to the main piece (14) is provided with a flange (16). The flange (16) transitions to the root of the limiting cylinder (10). The flange (16) is arranged perpendicular to the transition piece (15). The limiting cylinder (10) includes a vertical piece part (17) at the root and a semi-circular part (18) extending from the vertical piece part (17). The semi-circular part (18) has an opening facing downward. The flange (16) is connected to the vertical piece part (17) as a whole.

4. A motor wire terminal according to claim 2, characterized in that: The elastic sheet (13) is a "V" shape with a protrusion (19) pointing upwards. The upper end face of the elastic sheet (13) is provided with a protrusion (19), which is located between the two limiting cylinders (10). The middle part of the sheet (7) is provided with an operation port (20). The fixed part (21) of the clamping area (1) is the rear side of the operation port (20). The two sides of the fixed part (21) have extension edges (22). The cross-sectional shape formed by the extension edges (22) and the fixed part (21) is a "V" shape.

5. A motor wire terminal according to claim 2, characterized in that: The main piece (14) opposite the limiting cylinder (10) is provided with a protrusion (121), which protrudes on the front and back of the main piece (14).

6. MGU connector assembly testing fixture, characterized in that: The wiring assembly includes two motor wire terminals connected by a wire, and the wire terminals are the motor wire terminals as described in claim 1; The two ends of the wire are pressed into the clamping groove (3), and a clamping device is also included. There are two clamping devices, which are respectively arranged at both ends of the wire terminal. The clamping device includes a mounting head (23) and a connecting head (24). Two clamping arms are installed on the connecting head (24). One end of the two clamping arms is hinged to the connecting head (24), and the other end is set opposite to each other and a gap (26) is reserved. An adjusting column (27) is installed on the clamping arm. The adjusting column (27) passes through the two clamping arms. A support spring (28) is sleeved on the adjusting column (27). The two ends of the support spring (28) are supported on the two clamping arms under the action of elasticity. One end of the adjusting column (27) is threaded to one of the clamping arms. The other end of the adjusting column (27) passes through the hole opened in the other clamping arm. An adjusting lever (32) is installed on the adjusting column (27). By rotating the adjusting column (27), the two clamping arms are rotated, and the gap (26) at one end of the two clamping arms is tightened to clamp the wire terminal.

7. The MGU connector assembly test fixture according to claim 6, characterized in that: The clamping area (1) is formed by plate one (7), the connecting area (2) is formed by plate two (8), the connecting slope (9) is formed at the connection of plate one (7) and plate two (8), the plate one (7) and plate two (8) form a height difference, the two sides of plate one (7) are rolled inward to the middle to form a semi-circular limiting cylinder (10), the end face of the limiting cylinder (10) is formed as the upper limit surface (11) of the insertion groove (4), the middle part of plate two (8) is provided with a slot (12), the slot (12) is located directly below the limiting cylinder (10), the edge of the slot (12) leads out an elastic piece (13) into the slot (12), the elastic piece (13) protrudes upward (19) the height of the elastic end face is higher than the height of the upper end face of plate one (7), the upper end face of the elastic piece (13) and the upper end face of plate one (7) are the lower limit surface of the insertion groove (4); The second piece (8) includes a main piece (14) and a transition piece (15). The slot (12), elastic piece (13), limiting cylinder (10) and wire insertion slot (4) are arranged on the main piece (14). One end (7) of the transition piece (15) is connected to the connecting piece. The edge of the transition piece (15) connected to the main piece (14) is provided with a flange (16). The flange (16) transitions to the root of the limiting cylinder (10). The flange (16) is set perpendicular to the transition piece (15). The limiting cylinder (10) includes a vertical piece part (17) at the root and a semi-circular part (18) extending from the vertical piece part (17). The semi-circular part (18) has an opening facing downward. The flange (16) is connected to the vertical piece part (17) as a whole. The slit (26) is clamped at the position of the transition piece (15).

8. The MGU connector assembly test fixture according to claim 6, characterized in that: The clamping arm is U-shaped and includes a connecting arm (33) connected to the connector (24), a clamping part (34), and a mounting part (35) connecting the connecting arm (33) and the clamping part (34). The connecting arm (33) and the clamping part (34) are arranged in parallel. The outer side of the clamping part (34) near the gap (26) is inclined, and the two clamping parts (34) near the gap (26) form a relief groove (31). A threaded hole (29) is opened on the mounting part (35) of one clamping arm, and a through hole (30) is opened on the mounting part (35) of the other clamping arm opposite to it. The connecting arms (33) of the two clamping arms are initially located in the same straight line, the clamping parts (34) of the two clamping arms are initially located in the same straight line, and the mounting parts (35) of the two clamping arms are arranged in parallel.

9. The MGU connector assembly test fixture according to claim 7, characterized in that: A slot is provided at the end of the connecting arm (33) of one clamping arm, and a insert is provided at the end of the connecting arm (33) of the other clamping arm. A socket is provided at the end of the connector (24). The insert is inserted into the slot, and the insert and the slot are located inside the socket. The socket, the slot and the insert are connected by a pin, and the two connecting arms (33) can rotate around the pin.

10. The MGU connector assembly test fixture according to claim 6, characterized in that: The elastic sheet (13) is a "V" shape with a protrusion (19) pointing upwards. The upper end face of the elastic sheet (13) is provided with a protrusion (19), which is located between the two limiting cylinders (10). The middle part of the sheet (7) is provided with an operation port (20). The fixed part (21) of the clamping area (1) is the rear side of the operation port (20). The two sides of the fixed part (21) have extension edges (22). The cross-sectional shape formed by the extension edges (22) and the fixed part (21) is a "V" shape.

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