Vehicle wire harness electrical connection performance detector

Abstract

The utility model discloses a vehicle wire harness electrical connection performance detector, which belongs to the field of wire harness detection, is used for a wire harness, and comprises a base, a control switch is mounted on the base, the control switch realizes starting and stopping of a pressing block actuator, and the pressing block actuator drives an upper pressing block and a lower clamping block which are relatively close to each other and far away from each other. A groove for accommodating a terminal is formed in the contact surface of the lower clamping block and the upper pressing block, a pressing rod is arranged at the position, corresponding to the groove, of the upper pressing block, the top end of the pressing rod is connected with a pressing sheet, and the pressing sheet is connected with a detection instrument through a wiring end. According to the technical scheme, on-off detection can be carried out on the produced and formed wire harness and the terminal, and it is ensured that the wire harness and the terminal have good electric connection performance.

Description

Technical Field

[0001] The present application belongs to the field of wire harness testing, and more specifically, relates to a vehicle wire harness electrical connectivity performance tester. Background Art

[0002] Automotive wiring harnesses are a key component of automotive circuits. They are typically made of copper-punched contact terminals crimped onto wires and cables. These terminals are then encased in an insulator or protective metal housing and bundled together to form the circuit connection assembly. After production, automotive wiring harnesses must be tested for electrical connectivity to ensure good connectivity and stable signal transmission during operation.

[0003] Traditional wiring harness inspection is mostly performed manually, with wiring harnesses inspected one by one and in batches, and repeated plugging and unplugging operations. Not only are the operations repetitive and cumbersome, but long hours of work can easily cause operator fatigue, reducing inspection efficiency and quality.

[0004] At the same time, the patent document with Chinese patent publication number CN107270846A discloses a terminal tester and the following technical solution: it includes a test table, a cutting device and a wire harness fixing device are provided on the test table, the cutting device includes a driving mechanism, a slicing fixing shaft and a cutting slice, the driving mechanism is installed on the surface of the test table, the driving shaft of the driving mechanism is connected to the slicing fixing shaft, the cutting slice is detachably connected to the slicing fixing seat, a base is provided on one side of the cutting slice, the base is installed on the surface of the test table, a sliding plate is slidably connected to the base, a motor is provided at one end of the base, and a rotating seat is provided at the other end, the main shaft of the motor is connected to a screw through a coupling, the other end of the screw is rotatably connected to the rotating seat, a screw nut is provided on the screw that cooperates with the screw thread, the screw nut is connected to the lower end of the sliding plate, and the wire harness fixing device is connected to the sliding plate through a connecting rod mechanism.

[0005] The applicant believes that the existing technology disclosed in CN107270846A has a relatively complex transmission structure, and requires the provision of a cutting structure (including a slicing fixing shaft, a cutting sheet), etc., and requires the use of a fixing device, etc., which cannot specifically realize the detection of the electrical connectivity performance of the automobile wiring harness, and also cannot guarantee the connection stability during the above-mentioned detection process. Summary of the Invention

[0006] The purpose of this application is to provide a vehicle wiring harness electrical connectivity performance tester, which can perform continuity detection on the wiring harness and terminals after production, ensuring that the wiring harness and its terminals have good electrical connectivity performance.

[0007] To achieve the above objectives, this application is implemented through the following technical solutions:

[0008] The vehicle wiring harness electrical connectivity performance tester described in the present application includes a base, on which a control switch is installed, and the control switch realizes the start and stop of the pressure block actuator. The pressure block actuator drives the upper pressure block and the lower clamping block that are relatively close and far away. The contact surface of the lower clamping block and the upper pressure block is processed with a groove for accommodating the terminal. A pressure rod is provided at the position corresponding to the groove of the upper pressure block, and the top of the pressure rod is connected to a pressure plate, which is connected to the detection instrument through a terminal.

[0009] As one of the preferred technical solutions of the present application, the interior of the upper pressure block is processed with a accommodating cavity for accommodating a pressure rod, and the accommodating cavity is a stepped hole. The pressure rod is processed with a rod body limiter that cooperates with the stepped hole. The top end of the pressure rod is connected to one end of a spring, and the other end of the spring is connected to the pressure plate.

[0010] As one of the preferred technical solutions of the present application, the briquetting actuator is a clamping cylinder, the control switch is a solenoid valve, and the solenoid valve is located on the air path of the briquetting actuator.

[0011] As one of the preferred technical solutions of the present application, the detection instrument is a multimeter.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The present application can replace the manual connection of the terminal head with the detection instrument (not shown in the figure) to achieve semi-automatic detection, thereby improving detection efficiency and detection quality, reducing the labor intensity of operators and improving the efficiency of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This application is a three-dimensional Figure 1 .

[0015] Figure 2 This application is a three-dimensional Figure 2 .

[0016] Figure 3 It is the left view of this application.

[0017] Figure 4 yes Figure 3 Cross-sectional view at the position and direction shown by AA.

[0018] In the figure: 1. Lower clamp; 2. Pressure rod; 3. Upper pressure block; 4. Pressure plate; 5. Wiring terminal; 6. Pressure block actuator; 7. Base; 8. Control switch; 9. Cable; 10. Terminal; 11. Accommodation cavity; 12. Spring; 13. Rod limit. DETAILED DESCRIPTION

[0019] The technical solution described in this application is further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] like Figures 1 to 4 As shown, a vehicle wiring harness electrical connectivity performance tester includes a base 7, on which a pressure block actuator 6 extending away from the base 7 is installed, and the driving end of the pressure block actuator 6 is respectively installed with an upper pressure block 3 and a lower clamping block 1. The lower clamping block 1 and the upper pressure block 3 are driven by the pressure block actuator 6 to move closer to and away from each other.

[0022] The lower clamping block 1 is processed with a groove for placing and limiting the terminal 10 on the end surface in contact with the upper pressing block 3. When the terminal 10 is placed in the groove, the terminal 10 should have a position that is fully and well in contact with the pressing rod 2.

[0023] The pressure rod 2 is located within the upper pressure block 3. The pressure rod 2 is a conductive metal rod. A pressure plate 4 is connected to the top of the pressure rod 2. The pressure plate 4 is connected to the upper pressure block 3 via a terminal 5. The terminal 5 is connected to an external testing instrument via a wire. The testing instrument is a multimeter or other instrument that can be used by a person skilled in the art to test electrical connectivity.

[0024] A control switch 8 is also mounted on the base 7 , and the control switch 8 is used to start and stop the pressing actuator 6 .

[0025] Example 2

[0026] Continue to see Figures 1 to 4 , and see in particular Figure 4 A vehicle wiring harness electrical connectivity performance tester, wherein the upper pressing block 3 is processed with a accommodating cavity 11 composed of a stepped hole, a pressing piece 4 is provided at the top position of the accommodating cavity 11, and the bottom end opening of the accommodating cavity 11 is located at the contact surface between the upper pressing block 3 and the lower clamping block 1.

[0027] The pressure rod 2 is located in the accommodating cavity 11 . A rod limiter 13 that matches the stepped hole is processed on the pressure rod 2 . The rod limiter 13 is a stepped structure processed on the pressure rod 2 .

[0028] The top end of the pressure rod 2 is connected to one end of a spring 12, and the other end of the spring 12 is connected to the pressing plate 4. During the movement of the pressure rod 2, the spring 12 can achieve its own compression deformation and effective electrical connection under the relative movement of the pressing plate 4 and the pressure rod 2.

[0029] The structure and connection relationship of the remaining parts are the same as those described in the above embodiment, and will not be described again here to avoid tedious writing.

[0030] Example 3

[0031] A vehicle wiring harness electrical connectivity performance tester, wherein the pressing block actuator 6 is a clamping claw cylinder, and the control switch 8 is a solenoid valve installed on the air path of the pressing block actuator 6.

[0032] The structure and connection relationship of the remaining parts are the same as those described in the above embodiment, and will not be described again here to avoid cumbersome writing.

[0033] Based on the above embodiments, the following paragraphs will continue to describe in detail the technical features involved and the functions and roles played by the technical features in this technical solution, so as to help technical personnel in this field to fully understand the technical solution and reproduce it.

[0034] In the present application, the base 7 is used to achieve the connection and relative position fixation of the pressure block actuator 6 and the control switch 8 to ensure the relative stability of the entire device when detecting the cable 9 and the terminal 10.

[0035] In the present application, the pressure block actuator 6 can use a clamping cylinder or other execution structure with the same function as the clamping cylinder. At the power output end of the pressure block actuator 6, the lower clamping block 1 and the upper pressure block 3 can be moved closer to or farther away from each other. In the process of the lower clamping block 1 and the upper pressure block 3 approaching each other, the terminal 10 and the pressure rod 2 can be contacted and pressed, thereby improving the electrical connectivity performance of the cable 9.

[0036] During the contact process between the pressure rod 2 and the terminal 10, the pressure rod 2 can move relative to the upper pressure block 3 within the upper pressure block 3. The pressure rod 2 is located in the accommodating cavity 11, which has a relay structure that cooperates with the upper rod limit 13 of the pressure rod 2. That is, the pressure rod 2 can be fixed in the upper pressure block 3 in the initial state, and can achieve stable contact with the contacted terminal 10 under the action of the spring 12 after contact.

[0037] In addition to providing a force for the pressure rod 2, the spring 12 can also realize an electrical connection between the pressure rod 2 and the pressure piece 4. The pressure piece 4 can be electrically connected to an external detection instrument through the terminal 5 to realize performance testing of the cable 9 and the terminal 10.

[0038] Finally, although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vehicle wiring harness electrical connectivity tester, comprising a base (7), characterized in that: A control switch (8) is installed on the base (7), and the control switch (8) realizes the start and stop of the pressure block actuator (6). The pressure block actuator (6) drives the upper pressure block (3) and the lower clamping block (1) to move relatively close to and away from each other. A groove for accommodating the terminal (10) is processed on the contact surface between the lower clamping block (1) and the upper pressure block (3). A pressure rod (2) is provided at a position corresponding to the groove of the upper pressure block (3). The top end of the pressure rod (2) is connected to a pressure plate (4), and the pressure plate (4) is connected to the detection instrument through the terminal (5).

2. The vehicle wiring harness electrical connectivity tester according to claim 1, characterized in that: The upper pressing block (3) is internally processed with an accommodating cavity (11) for accommodating the pressing rod (2), and the accommodating cavity (11) is a stepped hole. The pressing rod (2) is processed with a rod body limiter (13) that cooperates with the stepped hole. The top end of the pressing rod (2) is connected to one end of a spring (12), and the other end of the spring (12) is connected to the pressing sheet (4).

3. The vehicle wiring harness electrical connectivity tester according to claim 2, characterized in that: The pressing block actuator (6) is a clamping claw cylinder, and the control switch (8) is a solenoid valve, which is located on the air path of the pressing block actuator (6).

4. A vehicle wiring harness electrical connectivity tester according to any one of claims 1 to 3, characterized in that: The detection instrument is a multimeter.

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