CN219589204U - Automobile air conditioner parallel flow evaporator and automobile - Google Patents

Abstract

The utility model discloses an air conditioner parallel flow evaporator for a vehicle and a vehicle, comprising: the first collecting pipe, the fourth collecting pipe, the radiating pipe and the second collecting pipe and the third collecting pipe are arranged in parallel in the upper liquid collecting chamber; the first collecting pipe, the second collecting pipe, the third collecting pipe and the fourth collecting pipe are respectively provided with a heat dissipation pipe hole matched with the shape of the heat dissipation pipe, and are communicated with the heat dissipation pipe through the heat dissipation pipe holes; the radiating pipe is of an independent structure, and the left end part and the right end part are of an angle shape; one end of the first collecting pipe and one end of the fourth collecting pipe are fixedly connected through a pipe seat, a liquid inlet interface communicated with the first collecting pipe and an air outlet interface communicated with the fourth collecting pipe are fixedly arranged on the pipe seat, and the caliber of the air outlet interface is larger than that of the liquid inlet interface; the scheme solves the problems that the low-temperature refrigerant evaporates into gas in the core body of the parallel flow evaporator, and the gas inlet and outlet of the parallel flow evaporator are required to be redesigned in order to ensure the performance of the evaporator, increase the flow rate of the low-temperature refrigerant and reduce the flow resistance after the volume is enlarged.

Description

Automobile air conditioner parallel flow evaporator and automobile

Technical Field

The utility model relates to the field of automobile air conditioners, in particular to an automobile air conditioner parallel flow evaporator and an automobile.

Background

Along with the increasingly strong competition of the automobile industry, the weight reduction, the performance improvement and the cost reduction of parts are trends of the development of the industry. For the automobile evaporator, a parallel flow evaporator is mainly adopted at present, wherein a radiating pipe plays an important role in equipment operation as an important part of the evaporator, and if the parallel flow evaporator with the same specification and model is required to improve the refrigerating performance by 6% -10% on the original basis, the structure of the existing radiating pipe is usually changed or optimized to achieve the purpose.

The current automobile parallel flow evaporator has the following problems:

1. the liquid is liquid when the low-temperature refrigerant flows into the evaporator core body, and the liquid is evaporated into gas when the liquid flows out of the air outlet pipe, so that the volume is increased, and design and adjustment are needed to be made again on the air inlet and outlet and the pipeline of the parallel flow evaporator, so that the flow rate of the low-temperature refrigerant is further increased, and the flow resistance is reduced, so that the performance of the evaporator is ensured.

2. The radiating pipes are connected by connecting ribs, when the collecting pipes are assembled with the radiating pipes, the distances from the pipe holes of the two collecting pipes to one end must be controlled within a tolerance range at the same time, and the requirements on the working of the collecting pipes are high.

3. The left and right ends of the radiating pipe are arc-shaped structures, so that the phenomenon of pipe knocking is easy to occur.

Aiming at the situation, a new structure and an optimization scheme of the heat dissipation belt are considered, so that the aims of weight reduction, performance improvement and cost reduction of parts are realized under the conditions of performance improvement, wind resistance and flow resistance as small as possible, and the requirements of the market on energy conservation of automobiles are also facilitated.

Disclosure of Invention

The utility model provides an air conditioner parallel flow evaporator for a vehicle and a vehicle, which are used for solving the problems in the prior art.

To achieve the above object, a first aspect of the present utility model provides an air conditioner parallel flow evaporator for a vehicle, comprising: an upper liquid collecting chamber, a radiating pipe and a lower liquid collecting chamber; the upper liquid collecting chamber is communicated with the lower liquid collecting chamber through a plurality of radiating pipes which are arranged in parallel;

the upper liquid collecting chamber comprises a first collecting pipe and a fourth collecting pipe which are arranged in parallel, and the lower liquid collecting chamber comprises a second collecting pipe and a third collecting pipe which are arranged in parallel;

the first collecting pipe, the second collecting pipe, the third collecting pipe and the fourth collecting pipe are respectively provided with a heat dissipation pipe hole matched with the shape of the heat dissipation pipe, and the first collecting pipe, the second collecting pipe, the third collecting pipe and the fourth collecting pipe are respectively communicated with the heat dissipation pipe through the heat dissipation pipe holes; the left end part and the right end part of each radiating pipe (2) are of an angular structure, and each radiating pipe (2) is of an independent structure;

one end of the first collecting pipe and one end of the fourth collecting pipe are fixedly connected through a fixed pipe seat, a liquid inlet interface and a gas outlet interface are fixedly arranged on the pipe seat, and the caliber of the gas outlet interface is larger than that of the liquid inlet interface; the first collecting pipe is communicated with the liquid inlet interface, and the fourth collecting pipe is communicated with the air outlet interface.

Further, the first collecting pipe is communicated with the second collecting pipe, the second collecting pipe is communicated with the third collecting pipe, and the third collecting pipe is communicated with the fourth collecting pipe.

Further, symmetrical bulges are arranged on the inner wall of the liquid inlet interface and/or the air outlet interface on the tube seat.

Further, the liquid inlet interface and/or the air outlet interface on the tube seat are/is a flanging type tube opening.

Further, the caliber of the liquid inlet interface is 12.5-13mm, and the caliber of the air outlet interface is 15.5-16mm.

Further, a side plate is arranged between the upper liquid collecting chamber and the lower liquid collecting chamber, and the side plates are respectively fixedly arranged at two sides of the parallel flow evaporator.

Further, other ends of the first collecting pipe, the second collecting pipe, the third collecting pipe and the fourth collecting pipe are fixedly provided with blocking covers.

Further, fins are arranged between the radiating pipes.

Further, the fins are straight fins.

A second aspect of the present disclosure provides an automobile, including an air conditioner parallel flow evaporator for an automobile provided above.

The utility model has the advantages and positive effects that:

1. this air conditioner parallel flow evaporator, with the cooling tube for the design of independent structure, make the cooling tube and collector tube assembly inseparabler, will give vent to anger simultaneously and connect the bore and be greater than feed liquor interface bore, increase low temperature refrigerant's flow, reduce the resistance, improved the evaporator performance, and easy operation, the leakproofness is strong.

2. The parallel flow evaporator of the air conditioner designs the left end part and the right end part of the radiating pipe into an angle shape, reduces the contact area, reduces the occurrence of the phenomenon of pipe knocking and improves the qualification rate of products.

3. The inner walls of the liquid inlet interface and the air outlet interface of the parallel flow evaporator of the air conditioner are provided with symmetrical bulges, so that the interface on the tube seat is more firmly connected with the tube.

4. The liquid inlet interface and the air outlet interface on the tube seat of the parallel flow evaporator of the air conditioner are flanging type tube orifices, and the design can lead the liquid inlet interface and the liquid inlet tube and the air outlet interface and the air outlet tube to be more convenient when being installed.

5. According to the parallel flow evaporator of the air conditioner, the fins are arranged between the radiating pipes, so that the heat exchange efficiency of the parallel flow evaporator is improved.

6. The parallel flow evaporator of the air conditioner has the advantages of simple structure, detachability, simple and convenient installation, firm connection, strong tightness, stable performance, safety, reliability and the like.

Drawings

FIG. 1 is a front view of a parallel flow evaporator of an air conditioner for a vehicle according to the present utility model;

FIG. 2 is a bottom view of the upper plenum of the present utility model;

FIG. 3 is a top view of the lower plenum of the present utility model;

fig. 4 is a plan view of a radiating pipe according to the present utility model;

FIG. 5 is a perspective view of the parallel flow evaporator of the vehicle air conditioner of the utility model, after being integrated with a liquid inlet pipe and a gas outlet pipe;

FIG. 6 is a right side view of FIG. 5;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a front view of a header of the present utility model;

fig. 9 is a cross-sectional view taken along A-A in fig. 8.

Fig. 10 is a sectional view taken along the direction B-B in fig. 8.

Description of the reference numerals

1. An upper plenum; 101. a first header; 102. a fourth header; 2. a heat radiating pipe; 3. a fin; 4. a side plate; 5. a lower plenum; 501. a second header; 502. a third header; 6. a tube seat; 601. a liquid inlet port; 602. an air outlet interface; 603. a protrusion; 7. a liquid inlet pipe; 8. an air outlet pipe; 9. and (5) plugging the cover.

Detailed Description

The following describes the embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the technical solutions disclosed in the present patent application, unless otherwise stated, terms such as "upper, lower, left and right" are generally defined with reference to the direction of the drawing plane of the corresponding drawing, and "inner and outer" are defined with reference to the inner and outer sides of the outline of the component or structure itself. In addition, it should be noted that terms such as "first, second", etc. are used to distinguish one element from another element without order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

According to a first aspect of the present utility model, there is provided a parallel flow evaporator for an air conditioner for a vehicle, as shown in fig. 1 to 8, comprising: an upper liquid collecting chamber 1, a radiating pipe 2 and a lower liquid collecting chamber 5; the upper liquid collecting chamber 1 is communicated with the lower liquid collecting chamber 5 through a plurality of radiating pipes 2 which are arranged in parallel; the upper plenum 1 includes a first header 101 and a fourth header 102 arranged in parallel, and the lower plenum 5 includes a second header 501 and a third header 502 arranged in parallel.

The first collecting pipe 101, the second collecting pipe 501, the third collecting pipe 502 and the fourth collecting pipe 102 are respectively provided with a heat dissipation pipe hole matched with the shape of the heat dissipation pipe 2, so that the heat dissipation pipe 2 is fixedly installed, and meanwhile, the first collecting pipe 101, the second collecting pipe 501, the third collecting pipe 502 and the fourth collecting pipe 102 are communicated with the heat dissipation pipe 2 through the heat dissipation pipe holes; the left end and the right end of the radiating pipe 2 are of an angular structure, each radiating pipe 2 is of an independent structure, the radiating pipes 2 in the prior art are connected by connecting ribs, when the collecting pipes are assembled with the radiating pipes 2, the distances from the pipe holes of the two collecting pipes to one end must be controlled within a tolerance range at the same time, smooth assembly of the connected radiating pipes can be ensured, and the single-row pipe design has relatively small requirement on the size, so that the assembly of products is more facilitated, and the assembly is more compact.

One end parts of the first collecting pipe 101 and the fourth collecting pipe 102 are fixedly connected through a fixed pipe seat 6, a liquid inlet interface 601 and a gas outlet interface 602 are fixedly arranged on the pipe seat 6, and the caliber of the gas outlet interface 602 is larger than that of the liquid inlet interface 601; the first collecting pipe 101 is communicated with a liquid inlet interface 601, and the fourth collecting pipe 102 is communicated with an air outlet interface 602.

In the above technical solution, the caliber of the air outlet port 602 of the tube seat 6 is larger than the caliber of the liquid inlet port 601, and the effect is that: the low-temperature refrigerant flows into the evaporator core from the liquid inlet pipe 7, the liquid occupies a larger proportion, and the gas is changed into gas due to evaporation and heat absorption when flowing out from the gas outlet pipe 8, and the volume is continuously increased, so the caliber of the gas outlet interface 602 and the pipe diameter of the gas outlet pipe 8 are designed to be relatively larger, the flow rate of the low-temperature refrigerant is increased, the resistance is reduced, the performance of the evaporator is improved, and meanwhile, the design also enables the fourth collecting pipe 102 and the gas outlet pipe 8 to be directly connected without other conversion pipes. The low-temperature refrigerant is usually R314a, and other types of refrigerants can be selected according to the actual situation of the air-conditioning evaporator, and the utility model is not limited in detail herein. In addition, the left end part and the right end part of the radiating pipe 2 are designed into an angle shape, so that the contact area is reduced, the phenomenon of pipe knocking is avoided, and the product qualification rate is improved.

In some embodiments, the parallel flow evaporator may be configured such that the first header 101 and the second header 501 are in communication, the second header 501 and the third header 502 are in communication, and the third header 502 and the fourth header 102 are in communication. The low-temperature refrigerant flows into the first collecting pipe 101 from the liquid inlet pipe 7, sequentially flows through the second collecting pipe 501, the third collecting pipe 502 and the fourth collecting pipe 102, absorbs heat and evaporates into gas in the process, finally flows out of the fourth collecting pipe 102 and flows into the air outlet pipe 8 through the air outlet port 602 on the pipe seat 6. For convenience of operation, the inlet port 601 and the outlet port 602 on the tube holder 6 are often integrally formed.

In this embodiment, as shown in fig. 8, 9 and 10, symmetrical protrusions 603 are formed on the inner wall of the liquid inlet port 601 and/or the gas outlet port 602 on the tube holder 6, so that the connection between the port on the tube holder 6 and the tube can be more firmly established.

In this embodiment, as shown in fig. 9 and 10, the liquid inlet port 601 and/or the gas outlet port 602 on the tube seat 6 are turned-up type tube ports, so that the installation of the liquid inlet port 601 and the liquid inlet tube 7, and the installation of the gas outlet port 602 and the gas outlet tube 8 can be facilitated.

In the embodiment, the caliber of the liquid inlet interface 601 is designed to be 12.5-13mm, the caliber of the air outlet interface 602 is designed to be 15.5-16mm, and the caliber size is controlled in the range by combining experimental comparison, so that the flow rate of the low-temperature refrigerant can be increased, the resistance can be reduced, the performance of the evaporator can be ensured, and the internal space of an automobile can not be excessively occupied.

In this embodiment, as shown in fig. 1 and 6, a side plate 4 is further disposed between the upper plenum 1 and the lower plenum 5, and the side plates 4 are respectively fixed on two sides of the parallel flow evaporator, so as to achieve the purpose of protecting the radiating tube 2.

In the present embodiment, as shown in fig. 5 and 6, the plug 9 is fixed to the other end portions of the first header 101, the second header 501, the third header 502, and the fourth header 102.

In the present embodiment, as shown in fig. 1, fins 3 are provided between the radiating pipes 2 to enhance the heat exchange efficiency of the parallel flow evaporator. Typically, the fins 3 may be flat fins, and other kinds of fins may be selected according to the air conditioning evaporator and the conditions in the automobile, for example: zigzag fins, porous fins, corrugated fins, etc., the present utility model is not particularly limited herein.

On the basis of the technical scheme, the second aspect of the application also provides an automobile, which comprises the automobile air conditioner parallel flow evaporator. Because the automobile provided by the present disclosure has all the features of the parallel flow evaporator, the description thereof is omitted herein for avoiding repetition.

The application patent of the utility model exemplarily describes the using steps of the parallel flow evaporator of the vehicle air conditioner, and the method comprises the following specific steps:

s1, starting an air conditioning mode in an automobile, wherein low-temperature refrigerant R314a flows out from an outlet of a plate heat exchanger in the automobile, passes through a liquid inlet pipe 7 and finally flows into a first collecting pipe 101 (namely a parallel flow evaporator) through a liquid inlet interface 601 on a pipe seat 6;

s2, the low-temperature refrigerant R314a sequentially flows through the second collecting pipe 501, the third collecting pipe 502 and the fourth collecting pipe 102, and absorbs heat and evaporates into gas through heat exchange in the flowing process; on the other hand, the cooled air is introduced into an automobile operation room for refrigeration;

s3, after heat exchange is completed, the gaseous low-temperature refrigerant finally flows out of the fourth collecting pipe 102 and flows into the air outlet pipe 8 through the air outlet interface 602 on the pipe seat 6; the liquid of the rear low-temperature refrigerant R314a is continuously introduced into the parallel flow evaporator to absorb heat, so that the refrigerant is reciprocated.

The preferred embodiments of the present application patent have been described in detail above with reference to the accompanying drawings, but the present application patent is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application patent within the scope of the disclosed technical concept, and all the simple modifications belong to the protection scope of the present application patent.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present patent does not provide additional description of the various possible combinations.

Furthermore, any combination of the various embodiments of the present utility model can be made without departing from the spirit of the present disclosure, which should also be considered as disclosed in the present application.

Claims (10)

1. An air conditioner parallel flow evaporator for a vehicle, comprising: an upper liquid collecting chamber (1), a radiating pipe (2) and a lower liquid collecting chamber (5); the upper liquid collecting chamber (1) is communicated with the lower liquid collecting chamber (5) through a plurality of radiating pipes (2) which are arranged in parallel;

the upper liquid collecting chamber (1) comprises a first collecting pipe (101) and a fourth collecting pipe (102) which are arranged in parallel, and the lower liquid collecting chamber (5) comprises a second collecting pipe (501) and a third collecting pipe (502) which are arranged in parallel;

the first collecting pipe (101), the second collecting pipe (501), the third collecting pipe (502) and the fourth collecting pipe (102) are respectively provided with a heat dissipation pipe hole matched with the heat dissipation pipe (2), and the first collecting pipe (101), the second collecting pipe (501), the third collecting pipe (502) and the fourth collecting pipe (102) are respectively communicated with the heat dissipation pipe (2) through the heat dissipation pipe holes;

the method is characterized in that: the left end part and the right end part of each radiating pipe (2) are of an angular structure, and each radiating pipe (2) is of an independent structure;

one end part of the first collecting pipe (101) and one end part of the fourth collecting pipe (102) are fixedly connected through a fixed pipe seat (6), a liquid inlet interface (601) and a gas outlet interface (602) are fixedly arranged on the pipe seat (6), and the caliber of the gas outlet interface (602) is larger than that of the liquid inlet interface (601); the first collecting pipe (101) is communicated with the liquid inlet interface (601), and the fourth collecting pipe (102) is communicated with the air outlet interface (602).

2. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: the first collecting pipe (101) is communicated with the second collecting pipe (501), the second collecting pipe (501) is communicated with the third collecting pipe (502), and the third collecting pipe (502) is communicated with the fourth collecting pipe (102).

3. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: symmetrical bulges (603) are formed on the inner wall of the liquid inlet interface (601) and/or the air outlet interface (602) on the tube seat (6).

4. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: the liquid inlet interface (601) and/or the air outlet interface (602) on the tube seat (6) are flanging type tube orifices.

5. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: the caliber of the liquid inlet interface (601) is 12.5-13mm, and the caliber of the air outlet interface (602) is 15.5-16mm.

6. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: and a side plate (4) is further arranged between the upper liquid collecting chamber (1) and the lower liquid collecting chamber (5), and the side plates (4) are respectively fixedly arranged on two sides of the parallel flow evaporator.

7. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: the plug cover (9) is fixedly arranged at the other ends of the first collecting pipe (101), the second collecting pipe (501), the third collecting pipe (502) and the fourth collecting pipe (102).

8. The vehicular air-conditioning parallel flow evaporator according to claim 1, wherein: fins (3) are arranged between the radiating pipes (2).

9. The vehicular air-conditioning parallel flow evaporator according to claim 8, wherein: the fins (3) are straight fins.

10. An automobile comprising the vehicular air-conditioning parallel flow evaporator according to any one of claims 1 to 9.