Air tightness detection device for rear cover of automobile air conditioner compressor

Abstract

The utility model provides an air tightness detection device for a rear cover of an automobile air conditioner compressor, and the device comprises a water tank which is provided with a support arm at one side; the detection assembly comprises a mounting plate which is located in the water tank and is in an inclined state, a pressing plate of which one end is adjustably arranged on the mounting plate and the other end is detachably connected with the mounting plate, and an air pipe which is arranged on the mounting plate and is connected with external inflation equipment; the control assembly is arranged on the support arm, is in transmission connection with the mounting plate and is used for adjusting the position of the detection assembly; the multiple sets of compressor rear covers are placed at the designated positions of the mounting plate, then the pressing plate is buckled to enable the compressor rear covers to be in a sealed state on the mounting plate, then the pressing plate is driven till the interior of the water tank is soaked in water, then external inflation equipment is connected with an air pipe to inflate the interiors of the compressor rear covers, and the compressor rear covers are independently detected through the detection assembly; and the compressor is assembled after being detected to be qualified, so that the situation that the compressor is disassembled and replaced again due to unqualified detection after assembly is completed can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning air tightness testing technology, and in particular to an air tightness testing device for the rear cover of an automotive air conditioning compressor. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of a refrigeration system. Before a compressor is put into use, it needs to be tested for airtightness to prevent substandard parts from entering the market and affecting its use.

[0003] Currently, compressor rear cover pressure testing typically involves assembling the entire unit, then introducing gas into the compressor using an intake detection device to check for leaks in the rear cover. After the test, the pressure reducing valve automatically reduces the pressure, completing the airtightness test. The drawback of this method is that the entire unit must be fully assembled before testing. If leaks are detected during the test, the entire unit must be disassembled to replace the faulty rear cover. This method results in unnecessary waste of manpower and resources and increases the risk of problems during reassembly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an airtightness testing device for the rear cover of an automotive air conditioning compressor. This device solves the problems of wasting manpower and resources in traditional automotive air conditioning compressor rear cover testing, and also increases the risk of adverse effects during the reassembly of the entire unit.

[0005] According to an embodiment of this utility model, an airtightness testing device for the rear cover of an automotive air conditioning compressor includes a water tank and a support arm on one side; a testing component including a mounting plate located inside the water tank and in an inclined state, a pressure plate adjustable at one end on the mounting plate, the other end of the pressure plate being detachably connected to the mounting plate, and an air pipe mounted on the mounting plate, the air pipe being connected to an external air filling device; the mounting plate is used to place the compressor rear cover body, and the pressure plate is used to clamp the compressor rear cover body; a control component is mounted on the support arm and is kinetically connected to the mounting plate, used to adjust the position of the testing component.

[0006] Compared with the prior art, this utility model has the following advantages: By individually testing the compressor back cover with the testing component, and assembling it onto the compressor only after it passes the test, the situation of disassembling and replacing it again after the assembly is completed can be avoided. During the testing process, multiple compressor back covers are placed in designated positions on the mounting plate, and then the pressure plate is fastened to make it in a sealed state on the mounting plate. Then, the control component drives it into the water tank to be immersed in water. Then, the air pipe is connected to the external air inflation device to inflate the inside of the compressor back cover. By observing whether the compressor back cover immersed in water produces air bubbles, it can be determined whether the compressor back cover is a qualified product.

[0007] Preferably, the mounting plate is provided with a mounting arm, the mounting arm has a stroke groove, a screw is rotatably installed in the stroke groove, and an adjusting block is hinged on one side of the pressure plate. The adjusting block is located in the stroke groove and is threadedly connected to the screw.

[0008] Preferably, an adjustment device is provided at the end of the pressure plate away from the adjustment block. The adjustment device includes an adjustment arm and a bolt threaded onto the pressure plate. An adjustment groove is provided on the adjustment arm, and the bolt is located in the adjustment groove.

[0009] Preferably, the end of the adjusting arm away from the adjusting groove is fixedly provided with a locking tooth, and a buckle is provided on the mounting plate, the buckle being engaged with the locking tooth.

[0010] Preferably, the control component includes a lead screw with one end rotatably disposed inside the water tank and the other end rotatably disposed on the support arm, and a drive source disposed on the support arm. The output end of the drive source and the end of the lead screw near the support arm are both provided with gears, and the two gears mesh with each other. The lead screw is threadedly connected to one end of the mounting plate, and a column is provided at the end of the water tank away from the lead screw, and the column passes through the mounting plate.

[0011] Preferably, the pressure plate is movably provided with multiple sets of abutment plates, and each abutment plate is fitted with a spring.

[0012] Preferably, the mounting plate is provided with a rubber pad and a limiting arm.

[0013] Preferably, the angle of inclination between the mounting plate and the bottom surface of the water tank is 15° to 25°. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0015] Figure 2 This is an exploded structural diagram of an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the mounting plate in an embodiment of the present utility model.

[0017] Figure 4This is a schematic diagram of the detection component in an embodiment of the present invention.

[0018] Figure 5 This is a left view of an embodiment of the present utility model.

[0019] In the above attached figures: 1. Water tank; 100. Compressor rear cover body; 101. Support arm; 2. Mounting plate; 201. Buckle; 202. Rubber pad; 203. Limiting arm; 204. Air pipe; 205. Mounting arm; 206. Stroke groove; 3. Pressure plate; 301. Adjusting block; 302. Screw; 303. Spring; 304. Abutment plate; 305. Bolt; 306. Adjusting groove; 307. Adjusting arm; 308. Clamping tooth; 4. Lead screw; 401. Gear; 403. Drive source; 404. Column. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 5 As shown in the figure, this utility model embodiment proposes an airtightness testing device for the rear cover of an automotive air conditioning compressor, which includes a water tank 1 and a support arm 101 on one side; a testing component including a mounting plate 2 located inside the water tank 1 and in an inclined state, a pressure plate 3 with one end adjustablely mounted on the mounting plate 2, the other end of the pressure plate 3 being detachably connected to the mounting plate 2, and an air pipe 204 mounted on the mounting plate 2, the air pipe 204 being connected to an external air filling device, the mounting plate 2 being used to place the compressor rear cover body 100, and the pressure plate 3 being used to clamp the compressor rear cover body 100; and a control component mounted on the support arm 101 and pulsatorically connected to the mounting plate 2, used to adjust the position of the testing component.

[0022] The detailed working process of this embodiment is as follows: The reason why the mounting plate 2 is set in an inclined state is to facilitate the quick drainage of water when it is lifted. The pressure plate 3 is adjustable on the mounting plate 2 in order to meet the needs of pressing and sealing the compressor rear cover of different heights.

[0023] During the testing process, multiple compressor rear covers are placed at designated positions on mounting plate 2, and then pressure plate 3 is fastened to seal them on mounting plate 2. The control components then drive them into the water tank 1 to immerse them in water, and then the air pipe 204 is connected to an external air inflation device to inflate the inside of the compressor rear cover.

[0024] When the number of air holes on the compressor back cover to be tested is less than the number of air holes, the extra air holes can be blocked to avoid affecting the test.

[0025] like Figure 4As shown, the mounting plate 2 is provided with a mounting arm 205, and a stroke groove 206 is provided on the mounting arm 205. A screw 302 is rotatably installed in the stroke groove 206. An adjusting block 301 is hinged on one side of the pressure plate 3. The adjusting block 301 is located in the stroke groove 206 and is threadedly connected to the screw 302.

[0026] The detailed working process of this embodiment is as follows: When the screw 302 is rotated, the adjusting block 301 can move up and down in the stroke groove 206, thereby adjusting the relative distance between the pressure plate 3 and the mounting plate 2, so that it can be adjusted according to the height of the compressor rear cover to be tested, so that it can effectively press the compressor rear cover and make it in a sealed state with the mounting plate 2.

[0027] like Figure 4 As shown, an adjustment device is provided at the end of the pressure plate 3 away from the adjustment block 301. The adjustment device includes an adjustment arm 307 and a bolt 305 threadedly connected to the pressure plate 3. An adjustment groove 306 is provided on the adjustment arm 307, and the bolt 305 is located in the adjustment groove 306.

[0028] like Figure 3 and Figure 4 As shown, a locking tooth 308 is fixedly provided at the end of the adjusting arm 307 away from the adjusting groove 306, and a buckle 201 is provided on the mounting plate 2, which is locked onto the locking tooth 308.

[0029] The detailed working process of this embodiment is as follows: When the distance between the pressure plate 3 and the mounting plate 2 changes, the adjusting arm 307 needs to be adjusted synchronously so that the buckle 201 can be effectively locked on the tooth 308 to form an effective limit and ensure the sealing of the compressor back cover. During adjustment, simply loosen the bolt 305 and the adjusting arm 307 can be adjusted. After adjusting to the appropriate position, tighten the bolt 305 so that the adjusting arm 307 abuts against the pressure plate 3.

[0030] like Figure 2 As shown, the control component includes a lead screw 4 with one end rotatably disposed inside the water tank 1 and the other end rotatably disposed on the support arm 101, and a drive source 403 disposed on the support arm 101. The output end of the drive source 403 and the end of the lead screw 4 near the support arm 101 are both provided with gears 401, and the two gears 401 mesh with each other. The lead screw 4 is threadedly connected to one end of the mounting plate 2, and a column 404 is disposed at the end of the water tank 1 away from the lead screw 4. The column 404 passes through the mounting plate 2.

[0031] The detailed working process of this embodiment is as follows: the function of the lead screw 4 is to adjust the position of the mounting plate 2, the function of the column 404 is to limit the vertical movement of the mounting plate 2 to prevent the mounting plate 2 from colliding with the water tank 1 during vertical movement, and the drive source 403 is used to drive the lead screw 4 to rotate. When adjusting the position of the mounting plate 2, the drive source 403 drives the gear 401 to rotate, and the gear 401 drives the lead screw 4 to rotate.

[0032] The aforementioned drive source 403 is a motor. In other embodiments, appropriate drive components can be rotated according to actual needs.

[0033] like Figure 4 As shown, multiple sets of abutment plates 304 are movably arranged on the pressure plate 3, and each abutment plate 304 is fitted with a spring 303.

[0034] The detailed working process of this embodiment is as follows: With the setting of the abutment plate 304 and the spring 303, it can be ensured that the compressor rear cover on the mounting plate 2 can be pressed by the pressure plate 3. When the pressure plate 3 is fastened, the abutment plate 304 abuts against the compressor rear cover under the elastic force of the spring 303, so that the compressor rear cover can reliably contact and seal with the mounting plate 2.

[0035] like Figure 3 As shown, the mounting plate 2 is provided with a rubber pad 202 and a limiting arm 203.

[0036] The detailed working process of this embodiment is as follows: The function of the rubber pad 202 is to ensure the reliability of the sealing of the compressor rear cover under the compressed state. Since the mounting plate 2 is in an inclined state, when the compressor rear cover is not compressed, it will slide on the mounting plate 2. With the setting of the limiting arm 203, the compressor rear cover that is not compressed is limited and fixed, which facilitates subsequent operations.

[0037] like Figure 5 As shown, the angle of inclination between the mounting plate 2 and the bottom surface of the water tank 1 is 15° to 25°.

[0038] The detailed working process of this embodiment is as follows: within a certain range, the greater the tilt of the mounting plate 2, the faster the water on it will be lost.

[0039] The implementation principle of this application embodiment is as follows: First, move the mounting plate 2 to the upper side of the water tank 1, then open the pressure plate 3, place multiple compressor rear covers on the mounting plate 2, then fasten the pressure plate 3 so that the abutment plate 304 abuts against the compressor rear cover under the elastic force of the spring 303, then the buckle 201 is locked on the buckle tooth 308, and finally the mounting plate 2 is placed in the water in the water tank 1 to perform the inflation test.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for detecting the airtightness of the rear cover of an automotive air conditioning compressor, characterized in that, include: Water tank (1), with a support arm (101) on one side; The detection assembly includes an installation plate (2) located inside the water tank (1) and in an inclined state, a pressure plate (3) with one end adjustable on the installation plate (2), the other end of the pressure plate (3) being detachably connected to the installation plate (2), and an air pipe (204) provided on the installation plate (2), the air pipe (204) being connected to an external inflation device, the installation plate (2) being used to place the compressor rear cover body (100), and the pressure plate (3) being used to clamp the compressor rear cover body (100); A control component is mounted on the support arm (101) and is connected to the mounting plate (2) for adjusting the position of the detection component.

2. The automotive air conditioning compressor rear cover airtightness testing device according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting arm (205), and the mounting arm (205) is provided with a stroke groove (206). A screw (302) is rotatably provided in the stroke groove (206). An adjusting block (301) is hinged on one side of the pressure plate (3). The adjusting block (301) is located in the stroke groove (206) and is threadedly connected to the screw (302).

3. The automotive air conditioning compressor rear cover airtightness testing device according to claim 2, characterized in that: An adjustment device is provided at one end of the pressure plate (3) away from the adjustment block (301). The adjustment device includes an adjustment arm (307) and a bolt (305) threadedly connected to the pressure plate (3). An adjustment groove (306) is provided on the adjustment arm (307), and the bolt (305) is located in the adjustment groove (306).

4. The automotive air conditioning compressor rear cover airtightness testing device according to claim 3, characterized in that: The end of the adjusting arm (307) away from the adjusting groove (306) is fixedly provided with a locking tooth (308), and the mounting plate (2) is provided with a buckle (201), which is engaged with the locking tooth (308).

5. The automotive air conditioning compressor rear cover airtightness testing device according to claim 1, characterized in that: The control component includes a lead screw (4) with one end rotatably disposed inside the water tank (1) and the other end rotatably disposed on the support arm (101), and a drive source (403) disposed on the support arm (101). The output end of the drive source (403) and the end of the lead screw (4) near the support arm (101) are both provided with gears (401), and the two gears (401) mesh with each other. The lead screw (4) is threadedly connected to one end of the mounting plate (2), and a column (404) is disposed at the end of the water tank (1) away from the lead screw (4), and the column (404) passes through the mounting plate (2).

6. The automotive air conditioning compressor rear cover airtightness testing device according to claim 3, characterized in that: Multiple sets of abutment plates (304) are movably arranged on the pressure plate (3), and each abutment plate (304) is fitted with a spring (303).

7. The automotive air conditioning compressor rear cover airtightness testing device according to claim 5, characterized in that: The mounting plate (2) is provided with a rubber pad (202) and a limiting arm (203).

8. The automotive air conditioning compressor rear cover airtightness testing device according to claim 1, characterized in that: The angle of inclination between the mounting plate (2) and the bottom surface of the water tank (1) is 15° to 25°.

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