CN215445484U

CN215445484U - Pressure cooling pipe of vehicle air conditioner

Info

Publication number: CN215445484U
Application number: CN202121214550.5U
Authority: CN
Inventors: 李玉广; 李建基; 李健
Original assignee: Shanghai Senpu Auto Air Conditioner Co ltd
Current assignee: Shanghai Senpu Auto Air Conditioner Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-01-07
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a pressure cooling pipe of a vehicle air conditioner, which belongs to the field of pressure cooling pipes and comprises a hose and two hard pipes, wherein one ends of the two hard pipes are respectively provided with an integrated pressing sleeve, a clamping cavity is formed in a gap between the pressing sleeve and the hard pipes, the hose comprises an inner layer and an outer layer, the inner side of the outer layer is bonded with the inner layer, two ends of the inner layer respectively extend to the inner sides of the two clamping cavities, the pressing sleeve is provided with concave parts which are arranged at equal intervals, and the inner walls of the concave parts are tightly contacted with the hose. The utility model discloses a, it is more firm to make the fixed between hose and the hard tube through twice fixed, prevents to drop, and two-layer sealing layer further improves the leakproofness of junction between hose and two hard tubes simultaneously, guarantees to press the normal use of cold pipe, and the insulating tube avoids excessively giving off midway with the skin the heat when transmitting the highly compressed refrigerant of high temperature, influences the air temperature of vehicle, improves the result of use of vehicle air conditioner.

Description

Pressure cooling pipe of vehicle air conditioner

Technical Field

The utility model relates to the field of pressure cooling pipes, in particular to a pressure cooling pipe of an air conditioner for a vehicle.

Background

With the continuous development of society, automobiles enter thousands of households, an air conditioning system is taken as an important component of the automobiles and is mainly used for adjusting the temperature in the automobiles so as to enable the temperature in the automobiles to reach the appropriate temperature for people, the air conditioning system mainly comprises an evaporator, a condenser, a compressor, an expansion valve and a pipeline, an air suction pipeline of the compressor is a pipeline connected between the compressor and the evaporator, and when the air conditioning system works, a refrigerant flows back into the compressor through the air suction pipeline of the compressor.

Present pressure cold pipe is hose and hard tube combination use mostly, splice part between them adopts single fixed mode mostly, stability is relatively poor, take place to become flexible the problem that drops easily, can the polluted environment when influencing vehicle air conditioner result of use, and do not have the heat preservation measure, the high temperature high pressure refrigerant that leads to compressor compression can give off a large amount of heats before transmitting to the condenser and can lead to the heat to give off the position and influence the interior temperature of car, influence vehicle air conditioner's result of use, so the pressure cold pipe that has proposed vehicle air conditioner solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure cooling pipe of a vehicle air conditioner, aiming at solving the problems that the existing pressure cooling pipe is mostly combined by a hose and a hard pipe, the splicing part of the hose and the hard pipe is mostly in a single fixing mode, the stability is poor, the looseness and the falling are easy to happen, the use effect of the vehicle air conditioner is influenced, the environment is polluted, and no heat preservation measures are provided.

In order to solve the above problems, the present invention adopts the following technical solutions.

The pressure cooling pipe of the vehicle air conditioner comprises a hose and two hard pipes, wherein one end of each of the two hard pipes is integrally formed with a pressing sleeve, a clamping cavity is formed in a gap between the pressing sleeve and the hard pipe, the hose comprises an inner layer and an outer layer, the inner side of the outer layer is bonded with the inner layer, two ends of the inner layer respectively extend to the inner sides of the two clamping cavities, the pressing sleeve is provided with recessed portions which are arranged at equal intervals, the inner walls of the recessed portions are in close contact with the hose, and two ends of the hose are sleeved with hose hoops.

An extension part is integrally formed at one end of the hard tube close to the hose, the extension part is positioned on the outer side of the pressing sleeve, and the throat hoop is sleeved on the extension part.

The pressing sleeve is integrally formed with conical recessed portions which are arranged at equal intervals, and the inner sides of the conical recessed portions are located on the hose and are in close contact with the hose.

The inner layer comprises a rubber tube, a plurality of woven steel wire layers are laid inside the rubber tube, a polyurethane insulating layer is bonded on the outer side of the rubber tube, and the inner side of the outer layer is bonded with the polyurethane insulating layer.

The two hard pipes are respectively sleeved with a heat insulation pipe, and the two heat insulation pipes and the outer layer are both rubber and plastic pipes.

Compared with the prior art, the utility model has the advantages that:

this scheme, insert the inside in two clamp chambeies respectively through the both ends with the hose, two hose hoops on with the hose fastening form first layer fixed and the sealing layer, then utilize the technology of colding pressing to form a plurality of depressed parts with the inside extrusion of pressfitting cover, the technology of colding pressing is current well-known technique, belong to mature technique, no longer give unnecessary details here, it is fixed and the sealing layer to carry out the centre gripping to the hose with the inboard hard tube cooperation of hose and form the second floor, thereby make the fixed more firm between hose and the hard tube, prevent to drop, the leakproofness of junction between two-layer sealing layer further improvement hose and two hard tubes simultaneously, guarantee the normal use of colding pressing the pipe.

This scheme, through weaving the steel wire layer and increasing the anti high pressure ability of rubber tube, utilize the polyurethane insulating layer to play insulating effect, ensure the security that the inlayer used, through the skin to the rubber tube, weave steel wire layer and polyurethane insulating layer and protect, the insulating tube avoids with the skin that the heat excessively gives off midway when transmitting the highly compressed refrigerant of high temperature, influences the air temperature of vehicle, improves vehicle air conditioner's result of use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the hose and the rigid tube according to the present invention;

FIG. 3 is a side sectional view of the hose of the present invention.

The reference numbers in the figures illustrate:

1. a hose; 11. an inner layer; 111. a hose; 112. weaving a steel wire layer; 113. a polyurethane insulating layer; 12. an outer layer; 2. a hard tube; 21. an extension portion; 3. pressing the sleeve; 31. a recessed portion; 32. a tapered portion; 4. a clamp cavity; 5. a hose clamp; 6. a heat preservation pipe.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

referring to fig. 1 to 3, the pressure cooling pipe of an air conditioner for a vehicle according to the present invention includes a flexible pipe 1 and two hard pipes 2, wherein a pressing sleeve 3 is integrally formed at one end of each of the two hard pipes 2, a clamping cavity 4 is formed in a gap between the pressing sleeve 3 and the hard pipe 2, the flexible pipe 1 includes an inner layer 11 and an outer layer 12, the inner side of the outer layer 12 is bonded to the inner layer 11, two ends of the inner layer 11 respectively extend to the inner sides of the two clamping cavities 4, the pressing sleeve 3 is provided with recessed portions 31 arranged at equal intervals, inner walls of the recessed portions 31 are in close contact with the flexible pipe 1, and two ends of the flexible pipe 1 are respectively sleeved with a hose clamp 5.

According to the utility model, two ends of the hose 1 are respectively inserted into the two clamping cavities 4, the two hose hoops 5 on the hose 1 are fastened to form a first fixing layer and a sealing layer, then the inner side of the press sleeve 3 is extruded to form a plurality of concave parts 31 by utilizing a cold pressing process, the cold pressing process is a known prior art, belongs to a mature technology and is not described in detail herein, the hose 1 is clamped and fixed to form a second fixing layer and a sealing layer by matching with the hard pipe 2 on the inner side of the hose 1, so that the hose 1 and the hard pipe 2 are more firmly fixed and prevented from falling off, meanwhile, the two sealing layers further improve the sealing performance of the joint between the hose 1 and the two hard pipes 2, the normal use of the cold pressing pipe is ensured, the outer layer 12 plays a certain role in protecting and insulating the inner layer 11, and the using effect of the hose 1 is improved.

Please refer to fig. 1 and fig. 2, wherein: an extension part 21 is integrally formed at one end of the hard tube 2 close to the hose 1, the extension part 21 is positioned at the outer side of the pressing sleeve 3, and the hose clamp 5 is sleeved on the extension part 21.

In the utility model, the extension part 21 enables the hose hoop 5 to be matched with the extension part 21 to press the hose 1 when being fastened, so that the hose 1 is fixedly arranged on the extension part 21 and forms a seal.

Please refer to fig. 1 and fig. 2, wherein: the pressing sleeve 3 is integrally formed with the tapered portions 32 which are arranged at equal intervals, and the inner sides of the tapered portions 32 are positioned at the position where the hose 1 is tightly contacted.

In the utility model, the cone-shaped part 32 is generated by adopting a cold pressing process, the cone-shaped part 32 can protrude inwards and extrude the hose 1, the fixing stability can be increased relative to the concave part 31, and the slipping phenomenon can be prevented.

Please refer to fig. 3, in which: the inner layer 11 comprises a rubber tube 111, a plurality of braided steel wire layers 112 are laid inside the rubber tube 111, a polyurethane insulating layer 113 is bonded on the outer side of the rubber tube 111, and the inner side of the outer layer 12 is bonded with the polyurethane insulating layer 113.

According to the utility model, the high-pressure resistance of the rubber tube 111 is increased by the braided steel wire layer 112, the polyurethane insulating layer 113 has an insulating effect, the safety of the inner layer 11 is ensured, and the rubber tube 111, the braided steel wire layer 112 and the polyurethane insulating layer 113 are protected by the outer layer 12.

Please refer to fig. 1 and fig. 2, wherein: the two hard pipes 2 are both sleeved with heat insulation pipes 6, and the two heat insulation pipes 6 and the outer layer 12 are both rubber and plastic pipes.

In the utility model, the heat preservation pipe 6 and the outer layer 12 avoid excessive heat dissipation in the midway when high-temperature and high-pressure refrigerant is transmitted, which affects the air temperature of a vehicle and improves the use effect of the vehicle air conditioner.

The two ends of the hose 1 are respectively inserted into the two clamping cavities 4, the two hose hoops 5 on the hose 1 are fastened to form a first layer of fixing and sealing layer, then the inner sides of the press sleeves 3 are extruded to form a plurality of concave parts 31 by utilizing a cold pressing process, the cold pressing process is the prior known technology and belongs to the mature technology, redundant description is omitted, the hose 1 is clamped and fixed to form a second layer of fixing and sealing layer by matching with the hard pipe 2 on the inner side of the hose 1, so that the hose 1 and the hard pipe 2 are more firmly fixed and prevented from falling off, meanwhile, the sealing performance of the joint between the hose 1 and the two hard pipes 2 is further improved by the two layers of sealing layers, the normal use of the cold pressing pipe is ensured, the high-pressure resistance of the hose 111 is improved by weaving the steel wire layer 112, the insulation effect is achieved by utilizing the polyurethane insulation layer 113, the use safety of the inner layer 11 is ensured, and the hose 111, the sealing layer and the sealing layer are protected by the outer layer 12, The woven steel wire layer 112 and the polyurethane insulating layer 113 are used for protection, and the heat insulation pipe 6 and the outer layer 12 avoid excessive heat emission midway when high-temperature and high-pressure refrigerants are transmitted, so that the air temperature of a vehicle is influenced, and the using effect of the vehicle air conditioner is improved.

The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. Pressure cold tube of vehicle air conditioner, including hose (1) and two hard tubes (2), its characterized in that: one end of each of the two hard pipes (2) is integrally formed with a compression sleeve (3), a gap between the compression sleeve (3) and the hard pipe (2) is formed with a clamping cavity (4), the hose (1) comprises an inner layer (11) and an outer layer (12), the inner side of the outer layer (12) is bonded with the inner layer (11), two ends of the inner layer (11) extend to the inner sides of the two clamping cavities (4) respectively, the compression sleeve (3) is provided with recessed portions (31) which are arranged equidistantly, the inner walls of the recessed portions (31) are in close contact with the hose (1), and two ends of the hose (1) are sleeved with hose hoops (5).

2. A pressure-cooling pipe of an air conditioner for vehicles according to claim 1, wherein: an extension part (21) is integrally formed at one end, close to the hose (1), of the hard pipe (2), the extension part (21) is located on the outer side of the pressing sleeve (3), and the throat hoop (5) is sleeved on the extension part (21).

3. A pressure-cooling pipe of an air conditioner for vehicles according to claim 1, wherein: the pressing sleeve (3) is integrally formed with cone-shaped parts (32) which are arranged at equal intervals, and the inner sides of the cone-shaped parts (32) are positioned on the hose (1) and are in close contact with the hose.

4. A pressure-cooling pipe of an air conditioner for vehicles according to claim 1, wherein: two thermal insulation pipes (6) are sleeved on the hard pipes (2), and the thermal insulation pipes (6) and the outer layer (12) are both rubber and plastic pipes.