Wire harness switching part and automobile seat backrest motor testing device

Abstract

The utility model discloses a wire harness switching component and an automobile seat backrest motor testing device, comprising a fixed switching assembly communicated with a DC power supply, the fixed switching assembly comprising a positioning block; the movable switching assembly is communicated with the motor and comprises a positioning groove, and the depth of the positioning groove is not larger than the embedding height of the positioning block; the conductive components are respectively arranged on the opposite surfaces of the positioning groove and the positioning block; and the conductive components are communicated with the fixed switching component and the movable switching component. According to the utility model, through the arrangement of the fixed switching assembly and the movable switching assembly, the motor and the DC power supply can be communicated with the test motor through the communication of the fixed switching assembly and the movable switching assembly, so that different types of motors can be communicated with the movable switching assembly through cables during the test; the conductive assemblies are arranged on the movable switching assembly and the fixed switching assembly, so that the movable switching assembly and the fixed switching assembly can be quickly plugged to realize connection or disconnection, the motor and the direct-current power supply can be quickly connected or disconnected, and the motor detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, specifically to a wiring harness adapter and a testing device for automotive seat back motors. Background Technology

[0002] A car seat back includes a supporting frame structure, an adjustment mechanism for adjusting the backrest angle and position, and a drive system for driving the backrest movement. The drive system comprises a motor and gearbox, typically using a miniature DC motor. The motor speed is converted into the backrest angle adjustment speed through a transmission ratio. The motor's performance determines the comfort of the seat back. During the backrest production process, the motor needs to be installed on the backrest to adjust its angle. This involves visual and basic inspections, electrical performance checks, dynamic performance testing, and environmental adaptability testing. The latter three tests require connecting the motor to a power source.

[0003] During the testing of motors, the inventors of this application discovered that different types of backrests require motors with different power or shapes, resulting in varying shapes of motor connectors. Consequently, during the production of different types of backrests, manual plugging and unplugging of the power cord to the motor connector is required, affecting the production efficiency of the backrests and reducing the degree of automation in backrest production. Utility Model Content

[0004] This invention addresses the problem of reduced testing efficiency caused by manually plugging and unplugging the motor and power connection wires when testing motors for different types of backrests. It provides a wiring harness adapter and a testing device for automotive seat backrest motors. The specific technical solution is as follows:

[0005] A wiring harness adapter for connecting a motor and a DC power supply includes: a fixed adapter assembly connected to the DC power supply, the fixed adapter assembly including a positioning block; a movable adapter assembly connected to the motor, the movable adapter assembly including a positioning groove for accommodating the positioning block, the depth of the positioning groove not greater than the embedding height of the positioning block; and conductive components respectively disposed on the opposing surfaces of the positioning groove and the positioning block, the conductive components being capable of connecting the fixed adapter assembly and the movable adapter assembly.

[0006] Furthermore, the conductive component includes: a magnetic ring disposed on the top surface of the positioning block or the bottom surface of the positioning groove, the magnetic rings being able to attract each other to generate a magnetic field force; and at least two probes penetrating the positioning block or the positioning groove along the length direction, the probes being able to communicate to form a path.

[0007] Preferably, the conductive component includes four probes that are evenly distributed along the circumference of the magnetic ring.

[0008] Preferably, the assembly further includes a support component for supporting the fixed connection assembly. The support component includes: a column disposed on the support surface with its axis pointing vertically upward; a horizontal column disposed at the top of the column with its axis pointing horizontally and rotating relative to the side of the column; and a mounting shaft disposed at the end of the horizontal column away from the column, the mounting shaft being able to rotate relative to the side of the horizontal column, and the plane formed by the rotation of the mounting shaft being parallel to the axis of the column.

[0009] Preferably, the fixed adapter assembly further includes: a fixing block disposed on the positioning block away from the positioning groove, wherein a clamping hole with a slot is formed at the end of the fixing block away from the positioning block, the clamping hole is connected to the mounting shaft and the axes of the two coincide; and a limiting bolt disposed on the side of the positioning block, wherein the axis of the limiting bolt is perpendicular to the side of the positioning block and the limiting bolt can pass through the side of the positioning block opposite to the positioning groove.

[0010] Preferably, the movable adapter further includes a clamping block with a positioning groove at one end, the clamping block forming a through-hole waterproof cable connector, the waterproof cable connector passing through the positioning groove along the length of the clamping block; a limiting through-hole passing through the side of the positioning groove, the maximum diameter of the limiting through-hole being not less than the diameter of the limiting bolt, the limiting bolt being able to pass through the limiting through-hole to form a limiting structure that restricts the movable adapter from rotating relative to the positioning block.

[0011] A testing device for an automotive seat back motor includes the aforementioned wiring harness adapter; and a clamping assembly for moving the movable adapter, the clamping assembly including a robot, the mobile end of the robot being connected to a gripper, the gripper being capable of gripping the movable adapter.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0013] This invention establishes a fixed adapter component for connecting to a DC power supply and a movable adapter component for connecting to the motor. Connecting the fixed and movable adapter components enables the motor to be connected to the DC power supply for testing. This allows different types of motors to be connected to the movable adapter component via cables. Furthermore, conductive components are provided on both the fixed and movable adapter components, allowing for quick plugging and unplugging to achieve connection or disconnection. This further improves the testing efficiency of different types of motors by enabling rapid connection or disconnection during testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0015] Figure 2 This is a schematic diagram of the fixed adapter component structure;

[0016] Figure 3This is a schematic diagram of the active transition component structure.

[0017] In the diagram: 1. Support assembly; 11. Upright column; 12. Horizontal column; 13. Mounting shaft; 2. Fixed adapter assembly; 21. Fixing block; 22. Clamping hole; 23. Positioning block; 24. Limiting bolt; 3. Movable adapter assembly; 31. Clamping block; 32. Positioning groove; 33. Limiting through hole; 34. Waterproof cable connector; 4. Conductive assembly; 41. Probe; 42. Magnetic ring; 5. Clamping assembly; 52. Gripper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example 1

[0021] Example 1 is a wiring harness adapter component used to connect a motor and a DC power supply for testing the motor. Specifically, after the motor is connected to the DC power supply, it undergoes electrical performance testing, dynamic performance verification, noise and vibration testing, durability testing, and environmental adaptability testing in sequence. The electrical performance testing includes simulating a locked-rotor condition to measure the locked-rotor current and testing overcurrent protection time, insulation withstand voltage testing, and low-voltage starting capability; dynamic performance verification includes torque and speed testing, testing rotational accuracy and control feedback, and frequent forward and reverse switching testing; noise and vibration testing includes no-load noise and load vibration analysis; durability testing includes testing service life under extreme conditions and monitoring temperature rise during continuous operation; environmental adaptability testing includes testing the motor's starting torque and operational stability under high and low temperature environments, and conducting salt spray testing on the motor housing and terminals.

[0022] like Figures 1 to 3As shown, Embodiment 1 includes: a fixed adapter component 2 connected to a DC power supply, the fixed adapter component 2 including a positioning block 23; a movable adapter component 3 connected to a motor, the movable adapter component 3 including a positioning groove 32 for accommodating the positioning block 23, the depth of the positioning groove 32 not greater than the embedding height of the positioning block 23; and conductive components 4 respectively disposed on the opposing surfaces of the positioning groove 32 and the positioning block 23, the conductive components 4 being able to connect the fixed adapter component 2 and the movable adapter component 3.

[0023] Specifically, the fixed adapter component 2 is fixed relative to the position on the car back seat production line. One end of it is connected to a DC power supply, and the other end is welded with a positioning block 23. One end of the movable adapter component 3 is connected to the motor interface via a cable, and the other end forms a positioning groove 32. The inner side and bottom surface of the positioning groove 32 are parallel to the outer side and top surface of the positioning block 23, respectively. This allows the positioning groove 32 to restrict the position of the positioning block 23, so that the bottom surface of the positioning groove 32 and the top surface of the positioning block 23 are opposite surfaces. After the positioning block 23 is embedded in the groove, its top surface can coincide with its bottom surface. In the first embodiment, the conductive component 4 is respectively set on the inner bottom surface of the positioning groove 32 and the top surface of the positioning block 23. This allows the conductive component of the positioning block 23 to contact the conductive component of the positioning groove 32 after the positioning block 23 is embedded in the positioning groove 32. This makes the movable adapter component 3 and the fixed adapter component 2 integrated, and the movable adapter component 3 is above the fixed adapter component 2, which facilitates the insertion of the movable positioning groove 32 into the fixed positioning block 23.

[0024] Secondly, in one embodiment, the side of the positioning block 23 forms reinforcing ribs of the same shape, which can make close contact with the side of the positioning groove 32. After the positioning block 23 is embedded in the positioning groove 32, the two can fit tightly together, and the center line of the positioning block 23 coincides with the center line of the positioning groove 32. This makes the center lines of the conductive component 4 set in the positioning block 23 and the conductive component 4 set in the positioning groove 32 coincide, thereby enabling the two conductive components 4 to connect. This allows motor plugs of different shapes to be connected to the movable adapter component 3 of the same shape through cables. Furthermore, the conductive component 4 of the movable adapter component 3 connects to the conductive component 4 of the fixed adapter component 2 and is connected to the DC power supply, improving the efficiency of the motor connection to the DC power supply and thus improving the efficiency of motor testing.

[0025] Furthermore, the conductive component 4 includes: a magnetic ring 42 disposed on the top surface of the positioning block 23 or the bottom surface of the positioning groove 32, the magnetic rings 42 being able to attract each other to generate a magnetic field force; and at least two probes 41 penetrating the positioning block 23 or the positioning groove 32 along the length direction, the probes 41 being able to communicate to form a passage.

[0026] Specifically, a magnetic ring 42 is bonded to the middle area of ​​the top surface of the positioning block 23 or the middle area of ​​the bottom surface of the positioning groove 32. This magnetic ring 42 is annular, and its axis coincides with the center line of the positioning block 23 and the positioning groove 32. This ensures that after the positioning block 23 is embedded in the positioning groove 32, the magnetic rings attract each other, fixing the positioning block 23 and the positioning groove 32 together, and ensuring that the center lines of the positioning block 23 and the positioning groove 32 coincide. Secondly, a probe 41 mounted on the fixing adapter assembly 2 is installed through the fixing block 21 and the positioning block 23, with its length parallel to the length directions of the fixing block 21 and the positioning block 23. One end of the probe 41, away from the positioning block 23, is connected to... The probe 41 is connected to a DC power supply. Secondly, the probe 41 installed on the movable adapter 3 is installed through the clamping block 31, and its length direction is parallel to the length direction of the clamping block 31. The end of the probe 41 that is away from the positioning groove 32 passes through the cable waterproof connector 34 and is connected to the motor plug. The positions of the probe 41 installed on the positioning block 23 and the positioning groove 32 correspond to each other, so that the magnetic ring 42 attracts each other. When the top surface of the positioning block 23 contacts the bottom surface of the positioning groove 32, the probe 41 can be connected, so that the probe 41 of the fixed adapter 2 can be connected to the probe 41 of the movable adapter 3, so that the DC power supply is connected to the motor, forming an easy-to-plug adapter structure.

[0027] The cable waterproof connector 34 is installed at the end of the clamping block 31 away from the positioning groove 32 and the axis coincides with it. The connection between the connector and the surface of the clamping block 31 is sealed with a sealing ring to form a waterproof structure, so as to prevent water from entering the movable adapter 3 and the fixed adapter 2 under the action of gravity.

[0028] Furthermore, the conductive component 4 includes four probes 41, which are uniformly distributed along the circumference of the magnetic ring 42.

[0029] Specifically, the center line of the four probes 41 installed on the positioning block 23 is the axis of the magnetic ring 42, and the center line formed by the four probes 41 installed on the positioning groove 32 is also the axis of the magnetic ring 42. The distance between the probes 41 and the magnetic ring 42 is the same. In the first embodiment, the transverse cross-section of the positioning block 23 and the positioning groove 32 is rectangular, so that the angle of rotation of the positioning groove 32 relative to the positioning block 23 is a multiple of 90 degrees. Thus, no matter how the positioning groove 32 rotates relative to the positioning block 23, as long as the positioning groove 32 can be embedded in the positioning block 23, the probes 41 can be interconnected.

[0030] However, it should be noted that the probes 41 mounted on the positioning block 23 need to be connected to the positive and negative terminals of the DC power supply, and the probes 41 mounted on the positioning groove 32 need to be connected to the positive and negative terminals of the DC motor. Therefore, when the probes 41 are connected to the wires, the positive terminals of the probes 41 in contact with each other need to be connected to the positive terminal, and the negative terminals need to be connected to the negative terminal. In Embodiment 1, the probes 41 connected to the positive terminal can be placed at diagonal positions on the surfaces of the positioning block 23 or the positioning groove 32, so that after the positioning groove 32 is correctly connected, it can be rotated 180 degrees relative to the positioning block 23 to achieve positive-to-positive or negative-to-negative connection for motor testing. At the same time, the probes 41 connected to the positive terminal can also be placed on the same side of the surfaces of the positioning block 23 or the positioning groove 32, so that after the positioning groove 32 is correctly connected, it needs to be rotated 360 degrees relative to the positioning block 23 to reconnect and perform motor testing.

[0031] Furthermore, it also includes a support assembly 1 for supporting the fixed connection assembly. The support assembly 1 includes: a column 11 disposed on the support surface, with the axis of the column 11 pointing vertically upward; a horizontal column 12 disposed at the top of the column 11, with the axis of the horizontal column 12 being horizontal and the horizontal column 12 rotating relative to the side of the column 11; and a mounting shaft 13 disposed at the end of the horizontal column 12 away from the column 11, the mounting shaft 13 being able to rotate relative to the side of the horizontal column 12, and the plane formed by the rotation of the mounting shaft 13 being parallel to the axis of the column 11.

[0032] Specifically, the bottom end of the column 11 is fixedly mounted on the base. The base uses bolts to change the diameter of the mounting hole for the column 11, thereby clamping the column 11. When the diameter of the mounting hole is larger than the diameter of the column 11, the column 11 can rotate relative to the base, which in turn drives the horizontal column 12 and the mounting shaft 13 to rotate relative to the base. This, in turn, causes the fixed connection assembly to change position, adjusting its relative position with the movable adapter assembly 3, making it suitable for more types of motors and expanding its applicability. The top end of the column 11 is fixedly connected to one end of the horizontal column 12 via a mounting block with an adjustable diameter mounting hole, allowing the horizontal column 12 to rotate relative to the mounting block, thereby changing the position of the mounting shaft 13. The angle of the axis relative to the horizontal plane changes the angle of the top surface of the positioning block 23 relative to the horizontal plane, thereby matching the bottom surface of the positioning groove 32 with different angles. The horizontal column 12 and the mounting block are integrated and can rotate relative to the side of the column 11, thereby driving the mounting shaft 13 to rotate relative to the column 11. This causes the positioning block 23 to change position while keeping the angle of the top surface of the positioning block 23 relative to the horizontal plane unchanged. The end of the horizontal column 12 away from the column 11 is also fixedly connected to the mounting shaft 13 through the mounting block, so that the mounting shaft 13 can rotate both around its own axis and around the axis of the horizontal column 12, increasing the movable range of the positioning block 23 and its applicability.

[0033] The axis of the upright column 11 is a vertical line, and the axis of the horizontal column 12 is a horizontal line. This ensures that the mounting shaft 13 remains at the same height during the rotation of the upright column 11 relative to its own axis or the rotation of the horizontal column 12 relative to the upright column 11. This allows the positioning block 23 to change both the angle of its top surface relative to the horizontal plane and its position relative to the clamping block 31, without changing the height difference between it and the clamping block 31, unless the horizontal column 12 moves up and down along the side of the upright column 11. This allows the adjustment trajectory of the positioning block 23 to be either single or combined, improving its adjustment accuracy and applicability.

[0034] Furthermore, the fixed adapter assembly 2 also includes: a fixing block 21 disposed on the positioning block 23 away from the positioning groove 32, wherein a clamping hole 22 with a slot is formed at one end of the fixing block 21 away from the positioning block 23, the clamping hole 22 is connected to the mounting shaft 13 and the axes of the two coincide; and a limiting bolt 24 disposed on the side of the positioning block 23, wherein the axis of the limiting bolt 24 is perpendicular to the side of the positioning block 23 and the limiting bolt 24 can pass through the side of the positioning block 23 opposite to the positioning groove 32.

[0035] Specifically, the bottom end of the fixing block 21 is fixedly connected to the mounting shaft 13 through the clamping hole 22, so that the position of the fixing block 21 can be adjusted during the adjustment of the mounting shaft 13. The clamping hole 22 is adjusted by bolts to adjust its own diameter, so that the fixing block 21 can be fixed relative to the mounting shaft 13 and can also rotate relative to the mounting shaft 13. Secondly, the limiting bolt 24 is fixedly connected to a certain side of the positioning block 23, so that the position of the limiting bolt 24 relative to the probe 41 installed on the positioning block 23 is fixed. The axis of the limiting bolt 24 is perpendicular to the inner side of the positioning groove 32, so that the positioning groove 32 can be easily machined with a through hole that allows the limiting bolt 24 to pass through, thereby limiting the relative position between the positioning groove 32 and the positioning block 23 and ensuring that the probe 41 at different positions is relatively fixed.

[0036] Furthermore, the movable adapter assembly 3 also includes a clamping block 31 with a positioning groove 32 at one end. The clamping block 31 forms a through-hole waterproof cable connector 34, which passes through the positioning groove 32 along the length of the clamping block 31. A limiting through-hole 33 passes through the side of the positioning groove 32. The maximum diameter of the limiting through-hole 33 is not less than the diameter of the limiting bolt 24. The limiting bolt 24 can pass through the limiting through-hole 33 to form a limiting structure that restricts the movable adapter assembly 3 from rotating relative to the positioning block 23.

[0037] Specifically, one end of the clamping block 31 forms a positioning groove 32, and the other end is equipped with a cable waterproof connector 34. The hollow tube of the cable waterproof connector 34 passes through the clamping block 31, so that the probe 41 installed in the positioning groove 32 passes through the clamping block 31 and then through the hollow tube to pass through the cable waterproof connector 34, and then connects to the motor plug through the cable. The mating surface between the cable waterproof connector 34 and the clamping block 31 is equipped with a sealing structure such as rubber strip or glue, so that the surface of the cable waterproof connector 34 and the clamping block 31 forms a sealing structure to prevent external water from entering the clamping block 31 through the mating surface.

[0038] Secondly, the sidewall of the positioning groove 32 forms a through-hole 33, which is a U-shaped through-hole with an open end. As the positioning groove 32 approaches the positioning block 23, the limiting bolt 24 can pass through the limiting through-hole 33 through the open end. This allows the limiting bolt 24 fixed on one side of the positioning block 23 to restrict the through-hole 33 that passes through one side of the positioning groove 32. This allows the two to form a structure that restricts the relative position of the positioning groove 32 and the positioning block 23. This restricts the position of the four probes 41 installed on the positioning groove 32 relative to the four probes 41 installed on the positioning block 23. This allows the motor to be correctly connected to the DC power supply for detection, thereby improving detection efficiency and accuracy.

[0039] Example 2

[0040] like Figure 1 As shown, Embodiment 2 includes Embodiment 1 and a clamping component 5 for moving the mobile adapter 3. The clamping component 5 includes a gripper 52 fixedly connected to the mobile end of the robot, and the gripper 52 is capable of clamping the mobile adapter 3.

[0041] Specifically, the robot uses conventional technology, and its mobile end can be fixedly connected to the gripper 52, thereby driving the gripper 52 to move. In the first embodiment, the gripping block 31 has grooves on both sides for fixing the gripper 52, so that when the robot moves the gripper 52 to grip the gripping block 31, the relative position between the gripper 52 and the gripping block 31 remains unchanged, and the relative position between the gripper 52 and the probe 41 installed on the positioning groove 32 remains unchanged. Since the position of the positioning groove 32 relative to the positioning block 23 is fixed, the position of the positioning block 23 can be calculated from the position of the gripper 52, so that the robot can move the gripper 52 to match the positioning groove 32 with the positioning block 23, thereby connecting the probe 41, and connecting the motor to the DC power supply for detection, thereby improving the detection efficiency.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0043] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A wire harness adapter component for connecting a motor and a DC power supply, characterized in that, The wire harness adapter includes: A fixed adapter assembly (2) connected to the DC power supply, the fixed adapter assembly (2) including a positioning block (23); A movable adapter assembly (3) connected to the motor, the movable adapter assembly (3) including a positioning groove (32) for receiving the positioning block (23), the depth of the positioning groove (32) not greater than the embedment height of the positioning block (23); and Conductive components (4) are respectively disposed on the opposite surfaces of the positioning groove (32) and the positioning block (23), and the conductive components (4) can connect the fixed adapter component (2) and the movable adapter component (3).

2. The wire harness adapter component according to claim 1, characterized in that: The conductive component (4) includes: A magnetic ring (42) disposed on the top surface of the positioning block (23) or the bottom surface of the positioning groove (32) is capable of attracting each other to generate a magnetic field force; and At least two probes (41) penetrating the positioning block (23) or the positioning groove (32) along the length direction, the probes (41) being able to connect to form a passage.

3. The wire harness adapter component according to claim 2, characterized in that: The conductive component (4) includes four probes (41) which are uniformly distributed circumferentially along the magnetic ring (42).

4. The wire harness adapter component according to claim 1, characterized in that: It also includes a support assembly (1) for supporting the fixed adapter assembly (2), the support assembly (1) comprising: A column (11) is set on the support surface, and the axis of the column (11) is vertically upward; A horizontal column (12) is disposed at the top of the column (11), the axis of the horizontal column (12) is horizontal, and the horizontal column (12) rotates relative to the side of the column (11); and An mounting shaft (13) is provided at one end of the horizontal column (12) away from the vertical column (11). The mounting shaft (13) is rotatable relative to the side of the horizontal column (12), and the plane formed by the rotation of the mounting shaft (13) is parallel to the axis of the vertical column (11).

5. The wire harness adapter component according to claim 4, characterized in that: The fixed adapter assembly (2) also includes: A fixing block (21) disposed on the positioning block (23) away from the positioning groove (32) has a slotted clamping hole (22) formed at one end of the fixing block (21) away from the positioning block (23). The clamping hole (22) is connected to the mounting shaft (13) and their axes coincide. A limiting bolt (24) is provided on the side of the positioning block (23), the axis of the limiting bolt (24) is perpendicular to the side of the positioning block (23), and the limiting bolt (24) can pass through the side of the positioning block (23) opposite to the positioning groove (32).

6. The wire harness adapter component according to claim 5, characterized in that: The active adapter assembly (3) further includes a clamping block (31) with one end forming the positioning groove (32), the clamping block (31) forming a through-hole waterproof cable connector (34), the waterproof cable connector (34) passing through the positioning groove (32) along the length direction of the clamping block (31); A limiting through hole (33) penetrating the side of the positioning groove (32) has a maximum diameter not less than that of the limiting bolt (24). The limiting bolt (24) can pass through the limiting through hole (33) to form a limiting structure that restricts the rotation of the movable adapter assembly (3) relative to the positioning block (23).

7. A testing device for a car seat backrest motor, characterized in that: Includes the wire harness adapter as described in any one of claims 1 to 6; as well as A gripping assembly (5) for moving the movable adapter assembly (3), the gripping assembly (5) including a gripper (52) disposed on the mobile end of the robot, the gripper (52) being capable of gripping the movable adapter assembly (3).

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