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CN-116872672-B - Air conditioner expansion valve sealing device and vehicle

CN116872672BCN 116872672 BCN116872672 BCN 116872672BCN-116872672-B

Abstract

The invention relates to the technical field of automobile parts, and provides an air conditioner expansion valve sealing device and a vehicle, wherein the air conditioner expansion valve sealing device comprises an expansion valve, a front panel beating and a sealing gasket, the sealing gasket is used for being sleeved on an air conditioner pipe of the vehicle, the expansion valve and the sealing gasket are respectively positioned at two side sides of the front wall metal plate and are respectively used for being in sealing connection with the air conditioner pipe, and the sealing gasket is in sealing connection with the front wall metal plate. Thus, the front panel beating can be utilized to separate the expansion valve and the sealing gasket in the engine compartment and the space in the vehicle respectively, so that the sealing gasket can be assembled in the vehicle along with the air conditioner assembly, the assembly is simple, the sealing effect is good, the pipeline connection between the expansion valve and the air conditioner pipe and between the expansion valve and the air conditioner compressor and other parts in the engine compartment is also convenient, and the risk that the noise and residual water of the motor in the engine compartment permeate into the vehicle along the air conditioner pipe is reduced.

Inventors

  • FAN QINGLONG
  • ZHAO HUALEI

Assignees

  • 浙江吉利控股集团有限公司
  • 吉利汽车研究院（宁波）有限公司

Dates

Publication Date
20260512
Application Date
20230614

Claims (7)

  1. 1. The utility model provides an air conditioner expansion valve sealing device which is characterized in that, including expansion valve (1), preceding enclose panel beating (2) and sealing gasket (3), sealing gasket (3) are used for the cover to locate on air conditioner pipe (100) of vehicle, expansion valve (1) with sealing gasket (3) are located respectively preceding enclose both sides of panel beating (2) and are used for respectively with air conditioner pipe (100) sealing connection, just expansion valve (1) are located sealing gasket (3) are towards one side of engine compartment, sealing gasket (3) with preceding enclose panel beating (2) sealing connection; The sealing gasket (3) comprises a sealing body (31) and a first sealing part (32), a first opening (21) is formed in the position, corresponding to the sealing gasket (3), of the front wall metal plate (2), and the first sealing part (32) is connected to one side, facing the front wall metal plate (2), of the sealing body (31) and is in interference fit with the first opening (21); The first sealing part (32) is a first sealing boss, and the first sealing boss is arranged towards the front panel (2) in a protruding manner along the thickness direction of the sealing gasket (3); The sealing gasket (3) further comprises a second sealing part (33) connected with the sealing body (31), the second sealing part (33) is arranged around the first sealing part (32) and is spaced from the first sealing part (32), and the second sealing part (33) is abutted against one side, deviating from the expansion valve (1), of the front panel (2); The second sealing part (33) is a second sealing boss, the second sealing boss is arranged towards the front wall metal plate (2) in a protruding mode along the thickness direction of the sealing gasket (3), and the protruding height of the second sealing part (33) is larger than that of the first sealing part (32).
  2. 2. The air conditioner expansion valve sealing device according to claim 1, wherein a first sealing surface (331) is arranged on the second sealing portion (33), and the first sealing surface (331) is attached to the side surface of the front panel (2) facing away from the expansion valve (1).
  3. 3. The expansion valve sealing device of an air conditioner according to claim 1, further comprising a clamping member (4), wherein the clamping member (4) is configured to be clamped to the air conditioner pipe (100) and is located between the gasket (3) and the expansion valve (1), and the gasket (3) abuts against the clamping member (4).
  4. 4. An air conditioner expansion valve sealing device according to claim 1, further comprising a sound insulation pad (5) provided with a second opening (51), the sound insulation pad (5) being connected to a side of the front panel (2) facing away from the expansion valve (1), the second sealing portion (33) being in interference fit with the second opening (51).
  5. 5. An air conditioner expansion valve sealing device according to claim 4, characterized in that the sealing gasket (3) further comprises a third sealing portion (34), the third sealing portion (34) being arranged around the edge of the second sealing portion (33) facing away from the first sealing portion (32) and abutting against the side of the sound insulation gasket (5) facing away from the front panel (2).
  6. 6. The air conditioner expansion valve sealing device according to claim 5, wherein a second sealing surface (341) is provided on the third sealing portion (34), and the second sealing surface (341) is attached to a side surface of the sound insulation pad (5) facing away from the front panel (2).
  7. 7. A vehicle comprising an air conditioning expansion valve sealing device according to any one of claims 1 to 6.

Description

Air conditioner expansion valve sealing device and vehicle Technical Field The invention relates to the technical field of automobile parts, in particular to an air conditioner expansion valve sealing device and a vehicle. Background With the rapid development of the automobile industry and the continuous popularization of vehicles, the NVH (Noise, vibration, harshness, namely noise, vibration and harshness) performance and waterproof requirements of people on the whole automobile are also higher and higher. The motor noise is large, water seepage in the automobile is an important factor affecting the riding comfort of customers, and the problem of sound insulation and sealing of the whole automobile through holes is one of key indexes of NVH performance of the whole automobile. At present, in an air conditioning system of an automobile, a gasket is generally sleeved on an expansion valve, and sealing is performed by utilizing cooperation between the gasket and the expansion valve and between the gasket and a high-low pressure pipe of the air conditioner. However, the external structure of the expansion valve is irregular and complex, so that the sealing surface of the sealing gasket, which is in contact with the expansion valve, is also complex and irregular, and the sealing gasket is easy to be extruded and deformed in the assembly process, so that poor sealing phenomena are easy to occur between the sealing gasket and the expansion valve and between the sealing gasket and the high-low pressure pipe of the air conditioner. And under the state that the expansion valve is poorly sealed, residual water in the engine compartment and high-frequency noise of the motor are easy to permeate into the vehicle through gaps between the sealing gasket and the expansion valve and between the sealing gasket and the air conditioner high-low pressure pipe due to deformation, so that noise perception of a driver in the vehicle to the motor becomes obvious abnormally, and meanwhile, mildew is easy to be caused by water flow permeation into the vehicle. Disclosure of Invention The invention solves the problem of reducing the risk of penetration of motor noise and residual water in the engine compartment of the whole vehicle into the vehicle along the air conditioning pipe. In order to solve the problems, the invention provides an air conditioner expansion valve sealing device which comprises an expansion valve, a front wall metal plate and a sealing gasket, wherein the sealing gasket is sleeved on an air conditioner pipe of a vehicle, the expansion valve and the sealing gasket are respectively positioned at two sides of the front wall metal plate and are respectively in sealing connection with the air conditioner pipe, and the sealing gasket is in sealing connection with the front wall metal plate. Optionally, the sealing gasket comprises a sealing body and a first sealing part, a first opening is formed in the position, corresponding to the sealing gasket, of the front wall metal plate, and the first sealing part is connected to one side, facing the front wall metal plate, of the sealing body and is in interference fit with the first opening. Optionally, the first sealing portion is a first sealing boss, and the first sealing boss is arranged towards the front panel board bulge along the thickness direction of the sealing gasket. Optionally, the sealing gasket further includes a second sealing portion connected to the sealing body, the second sealing portion surrounds the first sealing portion, and has a space with the first sealing portion, and the second sealing portion and the front panel board face away from one side of the expansion valve and butt against each other. Optionally, be equipped with first sealed face on the second sealing portion, first sealed face with enclose the panel beating is deviate from before the side of expansion valve is laminated mutually. Optionally, the air conditioner expansion valve sealing device further comprises a clamping piece, wherein the clamping piece is used for being clamped on the air conditioner pipe and located between the sealing gasket and the expansion valve, and the sealing gasket is abutted with the clamping piece. Optionally, the air conditioner expansion valve sealing device further comprises a sound insulation pad provided with a second opening, the sound insulation pad is connected to one side of the front wall metal plate, which is away from the expansion valve, and the second sealing part is in interference fit with the second opening. Optionally, the sealing pad further includes a third sealing portion, where the third sealing portion surrounds the edge of the second sealing portion, which faces away from the first sealing portion, and abuts against a side of the sound insulation pad, which faces away from the front panel. Optionally, a second sealing surface is arranged on the third sealing part, and the second sealing surface is attached to the side surface, devia