Automobile condenser detection device

Abstract

The utility model relates to the technical field, and discloses an automobile condenser detection device, which comprises a detection box, a transfer frame and a splash-proof plate, the top of the detection box is open, the detection box is filled with water, the splash-proof plate is of a transparent plate body structure matched with the top of the detection box and covers the detection box after being hinged to the top of the detection box, the transfer frame is placed in the detection box, and the condenser is placed in the detection box through the transfer frame; the high-pressure air conveying structure is connected with the air inlet end of the condenser, and air is conveyed to the condenser through the high-pressure air conveying structure; the constant-pressure exhaust structure is connected with the air outlet end of the condenser, and the air pressure in the condenser is kept at a constant value through the constant-pressure exhaust structure; the high-pressure gas transmission structure and the constant-pressure exhaust structure are connected with the condenser and then are fixed through the sealing clamping structure. Compared with the prior art, the device has the advantages that the constant-pressure exhaust structure is arranged, so that the air pressure in the condenser can be maintained at a constant value, and the detection capability is stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of condenser detection, in particular to an automobile condenser detection device. Background Technique

[0002] In an automobile air conditioning system, the condenser is a crucial component. It is responsible for dissipating heat and cooling the high-temperature and high-pressure refrigerant vapor discharged by the compressor, condensing it into a liquid high-pressure refrigerant, thereby discharging the heat inside the vehicle, reducing the temperature inside the vehicle, providing a comfortable driving environment, and filtering out dust and other pollutants in the air to improve the air quality inside the vehicle. Insufficient condenser sealing will lead to reduced condensation effect, increased energy loss, and shortened service life.

[0003] The existing method for detecting the sealing of an automobile condenser is to connect the inlet and outlet of the condenser through pipes, put it into water, transport compressed air into the condenser through the pipes, and observe whether there are bubbles in the water. If there are bubbles, the position where the bubbles occur leaks, and if there are no bubbles, the sealing is qualified. However, this method has certain hidden dangers. Some areas with poor sealing may not leak due to too small compressed air pressure, and when the outlet end of the condenser is blocked and the air is transported for detection, it may damage the condenser pipes due to too high air pressure. In addition, the interface models of different condensers are different, and it is very troublesome and time-consuming to replace the corresponding pipe joints. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide an automobile condenser detection device, which can maintain the air pressure in the condenser at a fixed value through a constant-pressure exhaust structure, and after the pipes are connected to condensers with different model interfaces, quick fixation and sealing are achieved through a sealing clamping structure.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] An automobile condenser detection device, comprising:

[0007] A detection box, a transfer rack and a splash guard; the top of the detection box is open, and the inside is filled with water. The splash guard is a transparent plate structure adapted to the top of the detection box, and after being hinged to the top of the detection box, it covers the detection box. The transfer rack is placed inside the detection box, and the condenser is placed inside the detection box through the transfer rack;

[0008] A high-pressure air delivery structure, connected to the air inlet end of the condenser, and delivering air to the condenser through the high-pressure air delivery structure;

[0009] A constant-pressure exhaust structure, connected to the air outlet end of the condenser, and keeping the air pressure in the condenser at a fixed value through the constant-pressure exhaust structure;

[0010] After the sealing clamping structure, high-pressure gas transmission structure, and constant-pressure exhaust structure are connected to the condenser, they are fixed in place by the sealing clamping structure.

[0011] As an improvement, the high-pressure gas transmission structure includes a compressed air tank, a gas transmission pipe, and a gas transmission valve; the compressed air tank is located at the rear of the test box and is connected to the air inlet of the condenser through the gas transmission pipe, and the gas transmission valve is located on the gas transmission pipe and fixed to the top of the test box.

[0012] As an improvement, the constant pressure exhaust structure includes an exhaust pipe, an exhaust valve, a pressure cylinder, a pressure relief valve, an adjusting cap, a piston, and a compression spring. The pressure cylinder is a circular cylinder with an open bottom and an internal thread structure at the bottom. One end of the exhaust pipe is connected to the outlet of the condenser, and the other end is connected to the top of the pressure cylinder. The exhaust valve is located on the exhaust pipe and fixed to the top of the detection box. The piston is movably located inside the pressure cylinder, and the adjusting cap is threaded onto the bottom of the pressure cylinder and connected to the piston through the compression spring. An exhaust hole is formed in the middle of the side wall of the pressure cylinder, and when the piston moves below the exhaust hole, air is discharged from the exhaust hole. A pressure relief valve is also provided at the top of the pressure cylinder, and when the pressure relief valve is opened, the compression spring pushes the piston to exhaust the air from the pressure cylinder.

[0013] As an improvement, the sealing clamping structure includes a sleeve, a threaded sleeve, a connecting plate, and a lead screw; a pair of vertically arranged connecting plates are set on both sides of the condenser, and their bottoms are respectively connected and fixed to the ends of the exhaust pipe and the gas transmission pipe. The threaded sleeve is formed on the top of one connecting plate and the sleeve is formed on the top of the other connecting plate. The threaded sleeve is fitted and slidably disposed in the sleeve. One end of the lead screw is threaded into the threaded sleeve, and the other end is rotatably disposed on the connecting plate on which the sleeve is fixed. After passing through the connecting plate, a knob is fixed thereon. After the knob is rotated, the two connecting plates move relative to each other or in opposite directions.

[0014] As an improvement, the transfer frame is a sieve plate structure with handles fixed at both ends, and the handles are inverted U-shaped rod structures.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. After the pipe of this utility model is connected to condensers with different interface types, it can be quickly fixed and sealed through a sealing clamping structure. It can be applied to condensers with different interface types, making it more usable and easier to use.

[0017] 2. This utility model is equipped with a constant pressure exhaust structure, which can maintain the gas pressure inside the condenser at a constant value, detect more points with poor sealing, and protect the condenser pipes from being damaged by high pressure gas during the detection process, thus improving safety and detection capabilities.

[0018] 3. The constant pressure exhaust structure of this utility model has an adjustable set pressure, which can detect condensers with different pipeline pressures. The adjustment method is simple and quick, making it more convenient to use and more applicable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0021] Figure 3 This is a structural schematic diagram of the transfer frame of this utility model.

[0022] Figure 4 This is a partial structural schematic diagram of the present invention.

[0023] Figure 5 This is a cross-sectional schematic diagram of the constant pressure exhaust structure of this utility model.

[0024] As shown in the figure: 1. Testing box; 2. Gas supply pipe; 3. Exhaust pipe; 4. Gas supply valve; 5. Exhaust valve; 6. Threaded sleeve; 7. Sleeve; 8. Connecting plate; 9. Lead screw; 10. Splash guard; 11. Magnetic strip; 12. Metal strip; 13. Air cylinder; 14. Pressure relief valve; 15. Exhaust port; 16. Adjusting cap; 17. Piston; 18. Compression spring; 19. Compressed air tank; 20. Water supply pipe; 21. Drain pipe; 22. Transfer frame; 23. Condenser. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] An automotive condenser testing device, such as Figure 1 , 2 As shown, its main body is the testing box 1, which is a square box structure with an open top. A pipe-laying cavity (used to arrange various air pipes) is provided on the rear side. A round hole is pre-drilled on the front side wall of the pipe-laying cavity, and the connection between the round hole and the air pipe is sealed. Support feet are fixed at the four corners of the bottom. A water supply pipe 20 is installed on the top of the side wall of the testing box 1, and a drain pipe 21 is installed at the bottom. Valves are installed on both the drain pipe 21 and the water supply pipe 20, which are used to fill, drain, and replace the water in the testing box 1. A splash guard 10 is hinged to the top of the testing box 1. The splash guard 10 is a transparent plate structure adapted to the top of the testing box 1. A magnetic strip 11 (such as...) is embedded in the splash guard 10. Figure 1 As shown, the magnetic strip 11 is set on the free side of the splash guard 10, and a metal strip 12 is set on the top of the detection box 1 corresponding to the magnetic strip 11. After the splash guard 10 is covered on the detection box 1, the magnetic strip 11 and the metal strip 12 are attracted to each other.

[0028] Transfer frame 22, such as Figure 3 As shown, it is a plate structure with handles fixed at both ends, and the handles are inverted U-shaped rod structures. The plate of the transfer frame 22 is evenly provided with a large number of drainage holes (to reduce water accumulation on the plate). The transfer frame 22 is placed in the test box 1, and the condenser 23 is placed into the test box 1 through the transfer frame 22 (the main function of the transfer frame 22 is to facilitate the handling and placement of the condenser 23).

[0029] High-pressure gas transmission structure and constant-pressure exhaust structure, such as Figure 1 , 4As shown, both are located on the rear side of the test chamber 1 and are connected to the condenser 23 inside the test chamber 1, and are fixed by a sealing clamping structure. Specifically, the high-pressure gas transmission structure includes a compressed air tank 19, a gas transmission pipe 2, and a gas transmission valve 4. The compressed air tank 19 (which is existing technology and comes with a pressure gauge, connector, and valve) is located on the rear side of the test chamber 1 and is connected to the air inlet of the condenser 23 via the gas transmission pipe 2. The gas transmission valve 4 is located on the gas transmission pipe 2 and is fixed to the top of the pipe-laying cavity of the test chamber 1 (for easy access). The operation involves the gas supply pipe 2 passing through the round hole on the front side wall of the pipe cavity and entering the test box 1; the constant pressure exhaust structure includes an exhaust pipe 3, an exhaust valve 5, a pressure cylinder 13, a pressure relief valve 14, an adjusting cap 16, a piston 17, and a compression spring 18; the pressure cylinder 13 is a circular cylinder with an open bottom and an internal thread structure at the bottom; one end of the exhaust pipe 3 is connected to the outlet end of the condenser 23, and the other end is connected to the top of the pressure cylinder 13 (the exhaust pipe 3 is the same as the gas supply pipe 2, arranged in the pipe cavity), and a check valve is provided at the connection (to prevent gas backflow). (Causing damage to condenser 23), exhaust valve 5 is located on exhaust pipe 3 and fixed at the top of the pipe cavity of test box 1 (located on the other side of gas supply valve 4), piston 17 is movably located inside pressure cylinder 13, and adjusting cap 16 is threadedly fitted to the bottom of pressure cylinder 13 and connected to piston 17 through compression spring 18 (adjusting cap 16 has a strip-shaped handle at the bottom), exhaust hole 15 is formed in the middle of the side wall of pressure cylinder 13, and pressure relief valve 14 is also provided at the top. After the gas enters the pressure cylinder 13 through exhaust pipe 3, the gas inside condenser 23 and the gas The gas pressure inside the cylinder 13 increases synchronously, causing the piston 17 to descend and compress the spring 18. After the top surface of the piston 17 moves to the exhaust port 15, some gas is discharged through the exhaust port 15. After the piston 17 blocks the exhaust port 15, the gas pressure rises again and presses the piston 17 down. Finally, a constant pressure is maintained at the exhaust port 15 (at this time, the exhaust volume is equal to the gas supply volume, and the gas pressure is equal to the elastic force of the spring 18). In addition, after the pressure relief valve 14 is opened, the gas is discharged from the pressure relief valve 14, and the piston 17 is pushed upward by the spring 18 to exhaust all the gas in the cylinder 13.The gas supply pipe 2 and the exhaust pipe 3 are connected to the condenser 23 through universal connectors at their ends (the universal connectors are inserted into or sleeved on the condenser 23 interface; the size of the universal connectors may not be compatible with the condenser 23 interface). The sealing and clamping structure includes a sleeve 7, a threaded sleeve 6, a connecting plate 8, and a screw 9. A pair of connecting plates 8 are located on both sides of the condenser 23, and their bottoms are respectively connected and fixed to the universal connectors of the exhaust pipe 3 and the gas supply pipe 2 (the opposite faces of the connecting plates 8 are provided with sealing gaskets corresponding to the interfaces of the condenser 23). The threaded sleeve 6 is formed on the top of one connecting plate 8, and the sleeve 7 is formed on the top of the other connecting plate 8. The threaded sleeve 6 is slidably disposed within the sleeve 7. One end of the screw 9 is threadedly sleeved within the threaded sleeve 6, and the other end is rotatably disposed on the connecting plate 8 on which the sleeve 7 is fixed, and a knob is fixed thereon. After the knob is rotated, the two connecting plates 8 move relative to each other or away from each other (after relative movement, the opposite faces of the two connecting plates 8 abut against the side wall of the condenser 23 and form a seal through the sealing gasket).

[0030] In the specific implementation of this embodiment:

[0031] Check if the pressure of compressed air tank 19 is normal (replace or refill compressed air tank 19 if the pressure is insufficient). Lift the splash guard 10 on the top of the test box 1, take out the transfer rack 22, and place the condenser 23 to be tested on the transfer rack 22. Then transfer the condenser 23 into the test box 1 through the transfer rack 22. Connect the air supply pipe 2 and the exhaust pipe 3 to the air inlet and outlet ports of the condenser 23 respectively. By rotating the knob of the screw 9, reduce the distance between the two connecting plates 8, and fix the air supply pipe 2 and the exhaust pipe 3 in the corresponding positions of the condenser 23, and seal the connection. Rotate the adjusting cap 16 at the bottom of the air pressure cylinder 13 to adjust the initial length of the compression spring 18 so that the compression spring 18 has a certain initial potential energy (the final air pressure potential energy is equal to the set initial potential energy and the fixed elastic potential energy generated by the fixed displacement distance), and the final air pressure potential energy is kept within the pressure range that the condenser 23 pipeline can withstand.

[0032] Close the splash guard 10, open the water supply pipe 20 valve to start water supply, and after the test box 1 is completely submerged in water, close the water supply pipe 20 valve, open the gas supply valve 4 and the exhaust valve 5. Compressed air in the compressed air tank 19 enters the condenser 23 through the gas supply pipe 2 and enters the pressure cylinder 13 through the exhaust pipe 3, causing the gas pressure in the condenser 23 and the pressure cylinder 13 to rise synchronously. Under the action of gas pressure, the piston 17 descends and compresses the compression spring 18. After the top surface of the piston 17 moves to the exhaust port 15, some gas is discharged through the exhaust port 15. After the piston 17 rises and blocks the exhaust port 15, the gas pressure rises again and presses the piston 17 down. Finally, a constant pressure is maintained at the exhaust port 15 (at this time, the exhaust volume is equal to the gas supply volume, and the gas pressure is equal to the spring force of the compression spring 18). At the same time, the constant pressure gas in the condenser 23 tests the sealing performance of the condenser 23, and leaks at the point of insufficient sealing are marked and displayed in the form of bubbles.

[0033] After the test is completed, close the gas supply valve 4 and the exhaust valve 5, open the drain pipe 21 valve to drain the water. After the water is drained, open the pressure relief valve 14, and the gas is discharged from the pressure relief valve 14. The piston 17 is pushed up by the compression spring 18 to discharge the gas in the air pressure cylinder 13. At this time, open the splash guard 10 and rotate the screw 9 knob in the opposite direction to make the two connecting plates 8 move in opposite directions. Then remove the exhaust pipe 3 and the gas supply pipe 2 from the condenser 23 and move the condenser 23 out to dry through the transfer rack 22.

[0034] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A device for detecting automotive condensers, characterized in that, include: Test box (1), transfer rack (22) and splash guard (10); the top of the test box (1) is open and the inside is filled with water. The splash guard (10) is a transparent plate structure that is adapted to the top of the test box (1). After being hinged to the top of the test box (1), it is closed on the test box (1). The transfer rack (22) is placed inside the test box (1), and the condenser (23) is placed inside the test box (1) through the transfer rack (22). The high-pressure gas transmission structure is connected to the air inlet of the condenser (23) and supplies air to the condenser (23) through the high-pressure gas transmission structure; The constant pressure exhaust structure is connected to the outlet of the condenser (23), and the gas pressure inside the condenser (23) is maintained at a constant value through the constant pressure exhaust structure; After the sealing clamping structure, the high-pressure gas transmission structure and the constant-pressure exhaust structure are connected to the condenser (23), they are fixed by the sealing clamping structure.

2. The automotive condenser testing device according to claim 1, characterized in that: The transfer frame (22) is a sieve plate structure with handles fixed at both ends, and the handles are inverted U-shaped rod structures.

3. The automotive condenser testing device according to claim 1, characterized in that: The test box (1) is equipped with a drain pipe (21) and a water supply pipe (20), and valves are respectively installed on the drain pipe (21) and the water supply pipe (20).

4. The automotive condenser testing device according to claim 1, characterized in that: The high-pressure gas transmission structure includes a compressed air tank (19), a gas transmission pipe (2), and a gas transmission valve (4). The compressed air tank (19) is located on the rear side of the test box (1) and is connected to the air inlet of the condenser (23) through the gas transmission pipe (2). The gas transmission valve (4) is located on the gas transmission pipe (2) and is fixed on the top of the test box (1).

5. The automotive condenser testing device according to claim 4, characterized in that: The constant pressure exhaust structure includes an exhaust pipe (3), an exhaust valve (5), a pressure cylinder (13), an adjusting cap (16), a piston (17), and a compression spring (18). The pressure cylinder (13) is a circular cylinder with an open bottom and an internal thread structure at the bottom. One end of the exhaust pipe (3) is connected to the outlet of the condenser (23), and the other end is connected to the top of the pressure cylinder (13). The exhaust valve (5) is installed on the exhaust pipe (3) and fixed on the top of the test box (1). The piston (17) is movably installed inside the pressure cylinder (13), and the adjusting cap (16) is threaded onto the bottom of the pressure cylinder (13) and connected to the piston (17) through the compression spring (18). An exhaust hole (15) is formed in the middle of the side wall of the pressure cylinder (13).

6. The automotive condenser testing device according to claim 5, characterized in that: A pressure relief valve (14) is also provided on the top of the air cylinder (13).

7. The automotive condenser testing device according to claim 5, characterized in that: The sealing clamping structure includes a sleeve (7), a threaded sleeve (6), a connecting plate (8), and a screw (9); a pair of connecting plates (8) are arranged on both sides of the condenser (23), and their bottoms are respectively connected and fixed to the ends of the exhaust pipe (3) and the gas transmission pipe (2). The threaded sleeve (6) is formed on the top of one connecting plate (8), and the sleeve (7) is formed on the top of the other connecting plate (8). The threaded sleeve (6) is slidably arranged in the sleeve (7). One end of the screw (9) is threaded in the threaded sleeve (6), and the other end is rotatably arranged on the connecting plate (8) on which the sleeve (7) is fixed, and a knob is fixed thereon.

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