Airtight test fixture for wire harness connector of new energy automobile

Abstract

The utility model discloses a new energy automobile wire harness connector airtightness test tool comprising a bearing plate, a first socket module installed at the top of the bearing plate and used for sealing two joints at one end of a wire harness, and a second socket module installed at the top of the bearing plate and used for sealing two joints at the other end of the wire harness. The second socket module is used for butt joint of two connectors at the other end of the wire harness, the first template is arranged at the top of the bearing plate, the second template is arranged at the top of the first template, and sealing die cavities are symmetrically formed in the opposite sides of the first template and the second template. And wiring grooves communicating with the sealing mold cavity are symmetrically formed in the opposite sides of the first mold plate and the second mold plate. According to the utility model, the first socket module and the second socket module are used in cooperation, the first socket module and the second socket module can be respectively and rapidly connected with two joints at two ends of the wire harness, and the phenomenon of unqualified airtightness of the steering wire harness in the production process can be effectively intercepted and improved.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures, and in particular to a gas tightness testing fixture for wiring harness connectors of new energy vehicles. Background Technology

[0002] With the continuous development of new energy vehicle technology, the role of automotive wiring harnesses in the entire vehicle is becoming increasingly prominent. It is not only the foundation of the automotive electronic and electrical system, but also the connecting carrier for various control circuits. Automobiles have become a means of transportation with a wide range of uses in modern society, including commuting, shopping, social activities, and personal travel. Automobiles provide flexibility and convenience, allowing people to freely choose their travel time and destination. In new energy vehicles, the steering wiring harness plays a crucial role in the entire automotive system, transmitting and distributing electrical energy, connecting various electronic components, and ensuring the normal operation of the vehicle.

[0003] Currently, the testing of steering wiring harness products during production is insufficient, as testing is not limited to continuity, misalignment, and short circuits. The lack of suitable airtightness testing fixtures poses a risk of vehicle malfunction or short circuits during normal operation. Therefore, we need to research and develop an efficient airtightness testing fixture for new energy vehicle steering wiring harnesses to ensure their waterproofness, guarantee product quality, and improve vehicle safety during driving. Existing fixtures lack the ability to trace test data when non-conforming or leaking values ​​occur during production, and they also lack features such as marking successful test results. Therefore, it is necessary to improve upon the shortcomings of existing technologies to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a test fixture for the airtightness of wiring harness connectors for new energy vehicles, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a new energy vehicle wiring harness connector airtightness testing fixture, including a carrier plate;

[0006] include:

[0007] The first socket module is installed on the top of the support plate and is used to seal the two connectors at one end of the wire harness.

[0008] The second socket module is installed on the top of the support plate. The second socket module is used to connect the two connectors at the other end of the wire harness. The first socket module and the second socket module cooperate to test the airtightness of the wire harness.

[0009] Preferably, the first socket module includes:

[0010] The first template is disposed on the top of the support plate;

[0011] The second template is located on top of the first template. Both the first and second templates have symmetrically formed sealing cavities on opposite sides. Both the first and second templates also have symmetrically formed wiring grooves that communicate with the sealing cavities on opposite sides.

[0012] Preferably, the first socket module further includes:

[0013] The base plate is fixedly connected to the top of the support plate, and the first template is fixedly connected to the top of the base plate;

[0014] A fixed column and a top plate, wherein the fixed column is fixedly connected between the bottom plate and the top plate;

[0015] The first cylinder is installed on the top of the top plate, and its output end is connected to the second template via a transmission connection.

[0016] Preferably, the second socket module includes:

[0017] Mounting plate, which is fixedly connected to the top of the support plate;

[0018] A connector base, which is fixedly installed on the top of the mounting plate;

[0019] A plug socket, which is disposed on one side of a connector socket.

[0020] Preferably, the top of the mounting plate is slidably provided with a first snap-fit ​​seat that matches the connector seat, and a second snap-fit ​​seat that matches the plug seat is provided on one side of the first snap-fit ​​seat. The connector seat has a mating cavity on the side facing the first snap-fit ​​seat, and a connecting pin is installed inside the mating cavity.

[0021] Preferably, a connecting plate is fixedly connected to the top of the mounting plate, and a connecting rod is symmetrically and slidably inserted and sleeved on one side of the connecting plate. The ends of the connecting rods are fixedly connected to the first snap-fit ​​seat and the second snap-fit ​​seat respectively. A fixing plate is fixedly connected to the top of the bearing plate, and a second cylinder is installed on one side of the fixing plate. The output end of the second cylinder is connected to the plug socket in a driving connection.

[0022] The technical effects and advantages of this utility model are as follows:

[0023] This utility model utilizes the combined use of a first socket module and a second socket module. The first socket module and the second socket module can quickly connect the two connectors at both ends of the wiring harness, which can effectively intercept and improve the airtightness of the steering wiring harness during the production process. For defects, the specific location and leakage point can be accurately and quickly identified, thereby improving the pass rate of steering wiring harness production. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the overall structure of the first template of this utility model.

[0026] Figure 3 This is a schematic diagram of the overall structure of the mounting plate of this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the connector seat of this utility model from the front.

[0028] In the diagram: 1. Bearing plate; 2. First socket module; 21. First template; 22. Second template; 23. Sealed mold cavity; 24. Wiring groove; 25. Base plate; 26. Fixing column; 27. Top plate; 28. First cylinder; 3. Second socket module; 31. Mounting plate; 32. Connector seat; 33. Plug seat; 34. First snap-fit ​​seat; 35. Second snap-fit ​​seat; 36. Connecting plate; 37. Connecting rod; 38. Fixing plate; 39. Second cylinder; 310. Docking cavity; 311. Conductor pin. Detailed Implementation

[0029] 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.

[0030] This utility model provides, for example Figure 1-4The invention relates to a new energy vehicle wiring harness connector airtightness testing fixture, comprising a carrier plate 1, a first socket module 2, and a second socket module 3. The first socket module 2 is mounted on the top of the carrier plate 1 and is used to seal the two connectors at one end of the wiring harness. The second socket module 3 is mounted on the top of the carrier plate 1 and is used to connect the two connectors at the other end of the wiring harness. Thus, both ends of the wiring harness have two connectors. The connectors of the wiring harness can be classified as connectors 1, 2, 3, and 4. Connectors 1 and 2 are installed inside the first socket module 2 for a sealed connection, while connectors 3 and 4 are installed inside the second socket module 3 and allow air to pass through to test the internal air pressure. If the air pressure is less than a specified value, the wiring harness airtightness is considered unqualified. The first socket module 2 and the second socket module 3 work together to test the airtightness of the wiring harness.

[0031] Furthermore, the first socket module 2 includes a first template 21, a second template 22, a base plate 25, a fixing post 26, a top plate 27, and a first cylinder 28. The first template 21 is disposed on the top of the support plate 1, and the second template 22 is disposed on the top of the first template 21. Sealing cavities 23 are symmetrically opened on opposite sides of the first template 21 and the second template 22. Wiring grooves 24 communicating with the sealing cavities 23 are symmetrically opened on opposite sides of the first template 21 and the second template 22. The No. 1 and No. 2 connectors of the wire harness are placed inside the two sealing cavities 23 through the wiring grooves 24. The base plate 25 is fixedly connected to the top of the support plate 1, the first template 21 is fixedly connected to the top of the base plate 25, the fixing post 26 is fixedly connected between the base plate 25 and the top plate 27, and the first cylinder 28 is installed on the top of the top plate 27. The output end of the first cylinder 28 is connected to the second template 22. The first cylinder 28 drives the second template 22 to descend and close with the first template 21, thereby sealing the No. 1 and No. 2 connectors of the wire harness.

[0032] Furthermore, the second socket module 3 includes a mounting plate 31, a connector 32, and a plug 33. The mounting plate 31 is fixedly connected to the top of the support plate 1. The connector 32 is fixedly installed on the top of the mounting plate 31. The plug 33 is located on one side of the connector 32. The connector 32 and the plug 33 correspond to the No. 3 and No. 4 connectors of the wire harness, respectively. A first snap-fit ​​seat 34 matching the connector 32 is slidably provided on the top of the mounting plate 31. A second snap-fit ​​seat 35 matching the plug 33 is provided on one side of the first snap-fit ​​seat 34. A mating cavity 310 is opened on the side of the connector 32 facing the first snap-fit ​​seat 34. A conductive pin 311 is installed inside the mating cavity 310. The conductive pin 311 and the plug 33 are connected to an external air supply device, so that air can be injected into the No. 3 and No. 4 connectors through the connector 32 and the plug 33 respectively. By detecting the change in air pressure, it can be determined whether the air tightness of the wire harness is good.

[0033] In particular, a connecting plate 36 is fixedly connected to the top of the mounting plate 31, and a connecting rod 37 is symmetrically slidably inserted and sleeved on one side of the connecting plate 36. The ends of the connecting rod 37 are fixedly connected to the first snap-fit ​​seat 34 and the second snap-fit ​​seat 35 respectively. A fixing plate 38 is fixedly connected to the top of the bearing plate 1, and a second cylinder 39 is installed on one side of the fixing plate 38. The output end of the second cylinder 39 is connected to the plug socket 33. When the first snap-fit ​​seat 34 and the second snap-fit ​​seat 35 respectively snap-fit ​​the No. 3 and No. 4 connectors of the wire harness, the second cylinder 39 can drive the plug socket 33 to mate with the No. 4 connector on the second snap-fit ​​seat 35. Furthermore, the plug socket 33 can also push the first snap-fit ​​seat 34 through the second snap-fit ​​seat 35 and the connecting rod 37 to mate with the No. 3 connector and the connector seat 32, thereby locking the No. 3 and No. 4 connectors of the wire harness together.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test fixture for air tightness of wiring harness connectors for new energy vehicles, comprising a carrier plate (1); Its features are, include: The first socket module (2) is installed on the top of the support plate (1) and is used to seal the two connectors at one end of the wire harness. The second socket module (3) is installed on the top of the support plate (1). The second socket module (3) is used to connect the two connectors at the other end of the wire harness. The first socket module (2) and the second socket module (3) cooperate to test the airtightness of the wire harness.

2. The airtightness testing fixture for a new energy vehicle wiring harness connector according to claim 1, characterized in that, The first socket module (2) includes: The first template (21) is disposed on the top of the support plate (1); The second template (22) is located on top of the first template (21). The first template (21) and the second template (22) are symmetrically provided with sealing mold cavities (23) on opposite sides. The first template (21) and the second template (22) are symmetrically provided with wiring grooves (24) communicating with the sealing mold cavities (23) on opposite sides.

3. The airtightness testing fixture for a new energy vehicle wiring harness connector according to claim 2, characterized in that, The first socket module (2) also includes: The base plate (25) is fixedly connected to the top of the bearing plate (1), and the first template (21) is fixedly connected to the top of the base plate (25); A fixed column (26) and a top plate (27) are fixedly connected between a bottom plate (25) and a top plate (27); The first cylinder (28) is mounted on the top of the top plate (27), and the output end of the first cylinder (28) is connected to the second template (22) for transmission.

4. The airtightness testing fixture for a new energy vehicle wiring harness connector according to claim 1, characterized in that, The second socket module (3) includes: Mounting plate (31), which is fixedly connected to the top of the support plate (1); Connector seat (32), which is fixedly installed on the top of mounting plate (31); A plug socket (33) is disposed on one side of a connector socket (32).

5. A new energy vehicle wiring harness connector airtightness testing fixture according to claim 4, characterized in that, The top of the mounting plate (31) is slidably provided with a first snap-fit ​​seat (34) that matches the connector seat (32). A second snap-fit ​​seat (35) that matches the plug seat (33) is provided on one side of the first snap-fit ​​seat (34). The connector seat (32) has a mating cavity (310) on the side facing the first snap-fit ​​seat (34). A connecting pin (311) is installed inside the mating cavity (310).

6. A new energy vehicle wiring harness connector airtightness testing fixture according to claim 5, characterized in that, A connecting plate (36) is fixedly connected to the top of the mounting plate (31). A connecting rod (37) is symmetrically slidably inserted and sleeved on one side of the connecting plate (36). The ends of the connecting rod (37) are fixedly connected to the first snap-fit ​​seat (34) and the second snap-fit ​​seat (35) respectively. A fixing plate (38) is fixedly connected to the top of the bearing plate (1). A second cylinder (39) is installed on one side of the fixing plate (38). The output end of the second cylinder (39) is connected to the plug socket (33) in a transmission connection.

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