Simple detection device for air tightness of automobile wire harness

Abstract

The utility model relates to the technical field of automobile wire harness detection, in particular to an automobile wire harness air tightness simple detection device which comprises a bottom plate, supporting legs, a porous deck plate and a water tank, the porous deck plate is installed at one end of the top of the bottom plate through the supporting legs, and a main stop valve is installed at one end of the top of the porous deck plate. The output end of the main stop valve is connected with a pipeline, the other end of the top of the porous countertop is provided with an electromagnetic valve, the input end of the electromagnetic valve is connected with a branch detection gas circuit communicated with the pipeline, and after the automobile wire harness is connected with a plug-in used for airtightness detection, the plug-in is connected with the branch detection gas circuit; the electromagnetic valve is controlled by the industrial personal computer, so that the air source pressure can accurately reach the detection standard; and a light supplementing lamp is arranged, so that a detector can clearly observe generated bubbles and track air leakage points, and an ideal detection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wire harness detection, in particular to a simple airtightness detection device for automobile wire harnesses. Background Technique

[0002] In order to ensure that the automobile electronic control wire harness can resist the influence of external environmental factors, especially moisture and dust, during the use of the vehicle, so as to ensure its stability and driving safety, it is particularly important to detect and solve problems during the research and development and manufacturing process of the automobile electronic control wire harness to ensure its airtightness.

[0003] In order to check the airtightness of the wire harness, one method is to insert the wire harness into the mating connector and soak it in water for a period of time, then separate the mating part, and then observe whether there is moisture inside to judge its sealing performance, which is called the immersion test. However, this detection method is restricted by factors such as the complexity of the mating connector structure and the operation method, and it is impossible to ensure that all the moisture outside the mating connector is removed before separating the mating connector. Therefore, when separating the mating connector, the air pressure may press the moisture originally outside the mating connector into the mating connector, resulting in inaccurate detection results and low efficiency; there is also a method of injecting compressed air into the middle of the wire harness mating connector for detection, but the device is too rough, the air pressure injected is not accurately controlled, and the observation is affected by external light, resulting in unconvincing detection results. Summary of the Invention

[0004] Aiming at the problems in the prior art, the utility model provides a simple airtightness detection device for automobile wire harnesses, which can accurately control the air pressure input during detection. At the same time, a supplementary light is set, so that the detection personnel can observe the bubbles more clearly, clearly find the air leakage point, and obtain an ideal detection effect.

[0005] The utility model includes a bottom plate, support legs, a porous table top plate and a water tank. One end of the top of the bottom plate is provided with a porous table top plate through the support legs. A main cut-off valve is installed at one end of the top of the porous table top plate. The output end of the main cut-off valve is connected with a pipeline. A solenoid valve is arranged at the other end of the top of the porous table top plate. The input end of the solenoid valve is connected with a branch detection air path communicated with the pipeline. After the automobile wire harness is connected with the mating connector for airtightness detection, the mating connector is then connected with the branch detection air path;

[0006] At one end of the top of the bottom plate near the support leg, a water tank is provided through a support column for submerging and testing the wire harness pair plug-in connected to the branch detection air circuit. A convex plate is provided on one side near the top end of the inner wall of the water tank. A supplementary light is provided at the bottom of the convex plate through a fixing seat. A tempered glass is installed on one side of the water tank through a reserved groove. The water tank is made of opaque material. A top cover is provided at the upper end of the water tank, and a groove corresponding to the convex plate is opened on one side of the top cover.

[0007] By adopting the above technical solution, since the water tank is made of opaque material, the inside of the water tank is supplemented with light by the supplementary light installed at the bottom of the convex plate, and then the generation of bubbles in the water tank is observed through the tempered glass, which can avoid the adverse effects of ambient light on the observation of bubbles.

[0008] Specifically, a handle is provided at one side of the top of the top cover, and a slotted hole is penetrated through one end of the water tank near the top.

[0009] Specifically, a first mounting seat, a second mounting seat, a third mounting seat, a fourth mounting seat, a fifth mounting seat and a sixth mounting seat are further provided on the top of the porous table board. A heat gun is installed on the top of the fourth mounting seat through a support frame. The solenoid valve is installed on the top of the sixth mounting seat.

[0010] By adopting the above technical solution, it is convenient to dry the tested automotive wire harness with a heat gun as needed.

[0011] Specifically, the fifth mounting seat is located on one side of the top of the porous table board, and a mobile phone holder is provided on the top of the fifth mounting seat. The mobile phone holder is telescopic and can be used to support the mobile phone to record the detection process.

[0012] Specifically, a second mounting seat is provided at one side of the main stop valve. A three-way valve is provided on the top of the second mounting seat through a mounting frame. One path of the three-way valve is connected to the pipeline, and the other path of the three-way valve can be connected to the heat gun through an air delivery pipe.

[0013] Specifically, a pressure gauge is provided on the top of the third mounting seat, and the air inlet end of the pressure gauge is communicated with the pipeline to display the air pressure during the test.

[0014] Specifically, stud bolts are provided at the bottoms of the first mounting seat, the second mounting seat, the third mounting seat, the fourth mounting seat, the fifth mounting seat and the sixth mounting seat.

[0015] By adopting the above technical solution, the stud bolts pass through the through holes provided on the porous table board, and then are locked with lock nuts on the stud bolts, so as to facilitate the locking and fixing of the first mounting seat, the second mounting seat, the third mounting seat, the fourth mounting seat, the fifth mounting seat and the sixth mounting seat.

[0016] Specifically, a mounting plate is welded to the inner wall of the support leg. A reinforcing plate is connected between the bottom of the mounting plate and the support leg. The lower industrial control computer is mounted on the top of the mounting plate by bolts.

[0017] By adopting the above technical solution, the lower industrial control computer can be connected to a gas flowmeter connected to an external pipeline and a solenoid valve of this detection device, so as to control the air pressure in the detection pipeline and meet the detection requirements.

[0018] The beneficial effects of the present utility model:

[0019] For the simple airtightness detection device of the automotive wiring harness of the present utility model, after the plugged-in connectors and the automotive wiring harness after inflation are immersed in the water tank, since the water tank is made of an opaque material and the top of the water tank is covered by a top cover, the supplementary light lamp installed at the bottom of the convex plate is used to supplement light to the inside of the water tank. By observing the generation of bubbles in the water tank through the tempered glass, the adverse influence of ambient light on the observation of bubbles can be effectively avoided, which can help the detection personnel observe the bubbles more clearly, quickly find the air leakage point, and achieve an ideal detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the rear view structure of the present utility model;

[0023] Figure 3 is a schematic diagram of the structure of the present utility model after the water tank and the top cover are separated;

[0024] Figure 4 is a schematic diagram of the structure of the fourth mounting seat, the air gun and the stud of the present utility model.

[0025] In the figure: 1, bottom plate; 2, support leg; 3, mounting plate; 4, lower industrial control computer; 5, reinforcing plate; 6, first mounting seat; 7, main cut-off valve; 8, second mounting seat; 9, three-way valve; 10, third mounting seat; 11, pressure gauge; 12, fourth mounting seat; 13, air gun; 14, fifth mounting seat; 15, mobile phone holder; 16, pipeline; 17, water tank; 18, tempered glass; 19, convex plate; 20, top cover; 21, handle; 22, porous table top panel; 23, supplementary light lamp; 24, groove; 25, stud; 26, sixth mounting seat; 27, solenoid valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved objectives and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In order to enable this detection device to avoid the influence of ambient light on observing bubbles and facilitate personnel to more clearly observe the air leakage point, as Figures 1-4 shown, the simple airtightness detection device for automotive wire harnesses of the present utility model includes a bottom plate 1, support legs 2, a porous table panel 22 and a water tank 17. One end of the top of the bottom plate 1 is provided with a porous table panel 22 through the support legs 2. A main cut-off valve 7 is installed at one end of the top of the porous table panel 22. The output end of the main cut-off valve 7 is connected to a pipeline 16. A solenoid valve 27 is provided at the other end of the top of the porous table panel 22. The input end of the solenoid valve 27 is connected to a branch detection air path communicating with the pipeline 16. After the automotive wire harness is connected to the plug-in connector for airtightness detection, the plug-in connector is then connected to the branch detection air path;

[0028] A water tank 17 for submerging and testing the wire harness plug-in connector connected to the branch detection air path is provided at one end of the top of the bottom plate 1 near the support legs 2 through a support column. A convex plate 19 is provided on one side near the top of the inner wall of the water tank 17. A supplementary light 23 is provided at the bottom of the convex plate 19 through a fixing seat. A tempered glass 18 is installed on one side of the water tank 17 through a reserved groove. The water tank 17 is made of an opaque material. A top cover 20 is provided at the upper end of the water tank 17. A groove 24 corresponding to the convex plate 19 is opened on one side of the top cover 20.

[0029] During use, since the water tank 17 is made of an opaque material, the inside of the water tank 17 is supplemented with light through the supplementary light 23 installed at the bottom of the convex plate 19, and the generation of bubbles in the water tank 17 is observed through the tempered glass 18, which can avoid the adverse influence of ambient light on bubble observation.

[0030] Exemplarily, as Figure 1 and 3 shown, the present utility model further includes that a handle 21 is provided on one side of the top of the top cover 20, and a slot is penetrated and opened near the top of one end of the water tank 17.

[0031] During use, the tester can conveniently lift or lower the top cover 20 through the handle 21, and the automotive wire harness to be detected can pass through one end of the water tank 17 conveniently through the slot.

[0032] Exemplarily, as Figure 1 and 4As shown, the utility model further includes that a first mounting seat 6, a second mounting seat 8, a third mounting seat 10, a fourth mounting seat 12, a fifth mounting seat 14 and a sixth mounting seat 26 are further arranged on the top of the porous table board 22. A pneumatic gun 13 is mounted on the top of the fourth mounting seat 12 through a support frame, and a solenoid valve 27 is mounted on the top of the sixth mounting seat 26.

[0033] During use, the pneumatic gun 13 facilitates drying the automotive wire harness after the detection is completed.

[0034] Exemplarily, as Figure 1 and 2 As shown, the utility model further includes that the fifth mounting seat 14 is located on one side of the top of the porous table board 22, and a mobile phone holder 15 is arranged on the top of the fifth mounting seat 14.

[0035] During use, the mobile phone can be conveniently placed through the mobile phone holder 15, and the tester can conveniently remove the mobile phone on the mobile phone holder 15 to photograph and record the generation of bubbles in the water tank 17.

[0036] Exemplarily, as Figure 1 As shown, the utility model further includes that a second mounting seat 8 is arranged at one side of the main stop valve 7. A three-way valve 9 is arranged on the top of the second mounting seat 8 through a mounting frame. One path of the three-way valve 9 is connected to the pipeline 16, and the other path of the three-way valve 9 can be connected to the pneumatic gun 13 through an air delivery pipe.

[0037] During use, by switching the air path of the three-way valve 9, it is convenient to supply air to the pipeline 16 or the pneumatic gun 13.

[0038] Exemplarily, as Figure 1 As shown, the utility model further includes that a pressure gauge 11 is arranged on the top of the third mounting seat 10, and the air inlet end of the pressure gauge 11 is communicated with the pipeline 16.

[0039] During use, the pressure of the pipeline 16 can be conveniently detected through the pressure gauge 11, which is convenient for the assistant to adjust the air pressure to the experimental pressure required by standards such as IPX7.

[0040] Exemplarily, as Figure 1 and 4 As shown, the utility model further includes that stud bolts 25 are arranged at the bottoms of the first mounting seat 6, the second mounting seat 8, the third mounting seat 10, the fourth mounting seat 12, the fifth mounting seat 14 and the sixth mounting seat 26.

[0041] In use, the stud 25 passes through the through holes provided on the porous table board 22, and then is locked by a lock nut on the stud 25, so as to facilitate the locking and fixing of the first mounting seat 6, the second mounting seat 8, the third mounting seat 10, the fourth mounting seat 12, the fifth mounting seat 14 and the sixth mounting seat 26.

[0042] Exemplarily, as Figure 1 shown, the utility model further includes that a mounting plate 3 is welded at the inner wall of the support leg 2, a reinforcing plate 5 is connected between the bottom of the mounting plate 3 and the support leg 2, and a lower industrial control computer 4 is installed on the top of the mounting plate 3 by bolts.

[0043] In use, the lower industrial control computer 4 is connected to a gas flowmeter connected to an external pipeline 16 and an electromagnetic valve of the detection device, so as to control the air pressure in the detection pipeline and meet the detection requirements.

[0044] When the utility model is in use, the air inlet end of the main cut-off valve 7 is connected to an external air source. When the main cut-off valve 7 is opened, the air source enters the corresponding branch detection air path through the pipeline 16. After the automotive wiring harness is plugged into the plug-in connector for airtightness detection, the plug-in connector is then connected to the branch detection air path. The part of the plug-in connector for detection and the air source input plug of the branch detection air path is sealed by injection molding to ensure the sealing effect;

[0045] The pressure of the pipeline 16 can be conveniently detected by the pressure gauge 11, which is convenient for the auxiliary personnel to adjust the air pressure to the experimental pressure required by standards such as IPX7. By switching the air path of the three-way valve 9, the pipeline 16 or the air gun 13 can be conveniently supplied with air. The automotive wiring harness after detection can be conveniently dried by the air gun 13. The mobile phone can be conveniently placed on the mobile phone holder 15, and the detection personnel can conveniently take down the mobile phone on the mobile phone holder 15 to photograph and record the generation of bubbles in the water tank 17;

[0046] The inflated plug-in connector and the automotive wiring harness are placed into the water tank 17 through the slot provided at one end of the water tank 17. The branch detection air path is connected to the plug-in connector to be detected, and part of the branch detection air path is stuck in the slot at the upper end of the side wall of the water tank 17. The slot can fix the pipeline of the branch detection air path and can limit the water inlet height. The plug-in connector to be detected is immersed in the water pre-stored in the water tank 17, and the top cover 20 is covered. Since the water tank 17 is made of an opaque material, the inside of the water tank 17 is filled with light by the supplementary light lamp 23 installed at the bottom of the convex plate 19, and then the generation of bubbles in the water tank 17 is observed through the tempered glass 18, which can avoid the adverse influence of ambient light on the observation of bubbles. The detection device forms a more convenient environment for observing bubbles in the water tank 17 by arranging the supplementary light lamp 23 in the water tank 17 made of an opaque material, and the effect is more obvious when observing bubbles. The detection personnel can clearly observe the air leakage point, which is beneficial to the detection work.

[0047] The basic principle, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A simple detection device for air tightness of automobile wiring harness, characterized in that: The invention comprises a bottom plate (1), supporting legs (2), a porous table top plate (22) and a water tank (17); the top end of the bottom plate (1) is provided with the porous table top plate (22) via the supporting legs (2); the top end of the porous table top plate (22) is provided with a main stop valve (7); the output end of the main stop valve (7) is connected to a pipeline (16); the other end of the top of the porous table top plate (22) is provided with a solenoid valve (27); the input end of the solenoid valve (27) is connected to a branch detection air path connected to the pipeline (16); after the automobile wiring harness is connected to a plug-in unit for air tightness detection, the plug-in unit is further connected to the branch detection air path; A water tank (17) for performing an immersion test on a wiring harness plug-in connected to the branch detection gas path is provided at the top of the bottom plate (1) near one end of the support leg (2) through a support column, a convex plate (19) is provided on the inner wall of the water tank (17) near one side of the top, a fill light (23) is provided at the bottom of the convex plate (19) through a fixing seat, a tempered glass (18) is installed on one side of the water tank (17) through a reserved groove, the water tank (17) is made of an opaque material, a top cover (20) is provided at the upper end of the water tank (17), and a groove (24) corresponding to the convex plate (19) is provided on one side of the top cover (20).

2. The simple detection device for air tightness of automobile wiring harness according to claim 1, characterized in that: A handle (21) is provided at one side of the top of the top cover (20), and a slot is provided through one end of the water tank (17) near the top.

3. The simple detection device for air tightness of automobile wiring harness according to claim 1, characterized in that: A first mounting seat (6), a second mounting seat (8), a third mounting seat (10), a fourth mounting seat (12), a fifth mounting seat (14) and a sixth mounting seat (26) are also provided on the top of the porous table panel (22); an air gun (13) is installed on the top of the fourth mounting seat (12) via a support frame, and the solenoid valve (27) is installed on the top of the sixth mounting seat (26).

4. The simple detection device for air tightness of automobile wiring harness according to claim 3 is characterized in that: The fifth mounting seat (14) is located on one side of the top of the porous table panel (22), and a mobile phone holder (15) is arranged on the top of the fifth mounting seat (14).

5. The simple air tightness detection device for automobile wiring harness according to claim 1 or 3, characterized in that: A second mounting seat (8) is provided at one side of the main stop valve (7), and a three-way valve (9) is provided on the top of the second mounting seat (8) via a mounting frame, one way of the three-way valve (9) is connected to the pipeline (16), and another way of the three-way valve (9) can be connected to the air gun (13) via an air supply pipe.

6. The simple air tightness detection device for automobile wiring harness according to claim 3 is characterized in that: A pressure gauge (11) is provided on the top of the third mounting seat (10), and an air inlet end of the pressure gauge (11) is in communication with the pipeline (16).

7. The simple air tightness detection device for automobile wiring harness according to claim 3 is characterized in that: The first mounting seat (6), the second mounting seat (8), the third mounting seat (10), the fourth mounting seat (12), the fifth mounting seat (14) and the sixth mounting seat (26) are all provided with studs (25) at the bottom.

8. The simple air tightness detection device for automobile wiring harness according to claim 1, characterized in that: A mounting plate (3) is welded to the inner wall of the support leg (2), a reinforcing plate (5) is connected between the bottom of the mounting plate (3) and the support leg (2), and a lower industrial control computer (4) is mounted on the top of the mounting plate (3) by means of bolts.

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