CN211138964U - Outdoor heat exchanger of vehicle air conditioner and vehicle air conditioner - Google Patents

Abstract

The utility model relates to a vehicle air conditioner technical field discloses a vehicle air conditioner outdoor heat exchanger and vehicle air conditioner. The utility model provides a vehicle air conditioner outdoor heat exchanger, which comprises two collecting pipes which are vertically and parallelly arranged and a heat exchange pipe arranged between the two collecting pipes; two ends of the heat exchange tube are respectively inserted into the two collecting pipes, and the heat exchange tube and the horizontal plane are arranged at a preset acute angle. The vehicle air conditioner comprises the vehicle air conditioner outdoor heat exchanger. The utility model provides an outdoor heat exchanger of vehicle air conditioner adopts horizontal parallel flow structure, and sets up the heat exchange tube into personally submitting with the level and predetermine the acute angle, has both guaranteed the condensation effect of heat exchanger when as the condenser, makes the heat exchanger have good drainage performance when as the evaporimeter again to its simple structure, simple to operate, occupation space is little. The utility model provides a vehicle air conditioner adopts above-mentioned vehicle air conditioner outdoor heat exchanger, has guaranteed heat exchange efficiency when having improved drainage, has practiced thrift energy consumption simultaneously.

Description

Outdoor heat exchanger of vehicle air conditioner and vehicle air conditioner

Technical Field

The utility model relates to an automobile air conditioner technical field especially relates to an outdoor heat exchanger of vehicle air conditioner and vehicle air conditioner.

Background

For new energy vehicles, winter heating is a more prominent problem, and heat pump air conditioners are more and more researched and applied due to high energy efficiency ratio. The outdoor heat exchanger of the heat pump air conditioner is used as a condenser in a refrigeration mode in summer and used as an evaporator in heating in winter, and the surface of the outdoor heat exchanger is easy to generate water vapor condensation and frosting when the outdoor heat exchanger is used as the evaporator, so that the heat exchange performance is seriously influenced. The outdoor heat exchanger in the prior art generally adopts a vertical parallel flow structure, the structure is favorable for draining water when the heat exchanger is used as an evaporator, but the performance of the heat exchanger used as a condenser is sacrificed, so that the refrigeration effect of the vehicle air conditioner is influenced, and researches show that the performance of the condenser with the vertical structure is about 7% different from that of the condenser with the horizontal structure with the same size. However, if the heat exchanger is of a horizontal parallel flow structure, there is a problem that drainage is not facilitated.

SUMMERY OF THE UTILITY MODEL

Based on above, an object of the utility model is to provide a vehicle air conditioner outdoor heat exchanger to solve the problem that can't compromise the drainage and guarantee the refrigeration effect that outdoor heat exchanger under the prior art exists.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the vehicle air-conditioning outdoor heat exchanger comprises two collecting pipes which are vertically and parallelly arranged and a heat exchange pipe arranged between the two collecting pipes, wherein two ends of the heat exchange pipe are respectively inserted into the two collecting pipes, and the heat exchange pipe and a horizontal plane are arranged to form a preset acute angle α.

Preferably, the opposite side surfaces of the two collecting pipes are respectively provided with a slot, the slot and the horizontal plane form the preset acute angle α, and the end part of the heat exchange pipe is inserted into the slot.

Preferably, the slots of the two headers are aligned.

Preferably, the preset acute angle α is 5 ° to 9 °.

Preferably, the predetermined acute angle α is 7 °.

Preferably, the number of the slots and the number of the heat exchange tubes are multiple, and the multiple slots are arranged on the collecting pipe in parallel at equal intervals.

Preferably, the heat exchanger further comprises a plurality of groups of heat exchange fins, wherein a group of heat exchange fins is arranged between every two adjacent heat exchange tubes, and the upper end and the lower end of each group of heat exchange fins are respectively abutted against the two adjacent heat exchange tubes.

Preferably, the cross-sectional shape of the header is circular or rectangular.

Preferably, the number of the heat exchange tubes is 30-60.

The utility model also provides a vehicle air conditioner, this vehicle air conditioner include as above-mentioned arbitrary scheme vehicle air conditioner outdoor heat exchanger.

The utility model has the advantages that:

the utility model provides a vehicle air conditioner outdoor heat exchanger adopts horizontal parallel flow structure, and sets up the heat exchange tube into personally submitting with the level and predetermine the acute angle, has both guaranteed the condensation effect of heat exchanger when as the condenser, makes the heat exchanger have good drainage performance when as the evaporimeter again to this vehicle air conditioner outdoor heat exchanger simple structure, simple to operate, occupation space is little. The utility model provides a vehicle air conditioner adopts above-mentioned vehicle air conditioner outdoor heat exchanger, has guaranteed heat exchange efficiency when having improved drainage, has practiced thrift energy consumption simultaneously.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic view of an outdoor heat exchanger of an air conditioner for a vehicle according to an embodiment of the present invention;

fig. 2 is a front view of a header pipe of an outdoor heat exchanger of an air conditioner for a vehicle according to an embodiment of the present invention;

fig. 3 is a schematic view of a heat exchange tube of an outdoor heat exchanger of an air conditioner for a vehicle according to an embodiment of the present invention;

fig. 4 is a front view of an outdoor heat exchanger of an air conditioner for a vehicle according to an embodiment of the present invention;

fig. 5 is a top view of an outdoor heat exchanger of an air conditioner for a vehicle according to an embodiment of the present invention.

In the figure: 1. a header pipe; 11. a slot; 2. a heat exchange pipe; 21. the heat exchange tube is provided with an opening; 3. and heat exchange fins.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the embodiment provides an outdoor heat exchanger of a vehicle air conditioner, which includes two collecting pipes 1 arranged vertically in parallel and a heat exchange pipe 2 arranged between the two collecting pipes 1, two ends of the heat exchange pipe 2 are respectively inserted into the two collecting pipes 1, and the heat exchange pipe 2 and a horizontal plane form a preset acute angle α, the two collecting pipes 1 are communicated with the inside of the heat exchange pipe 2, a heat exchange medium flows in from the collecting pipe 1 on one side and then flows through the heat exchange pipe 2, the heat exchange medium in the heat exchange pipe 2 exchanges heat with outside air through a pipe wall of the heat exchange pipe 2 to be vaporized or condensed, and vaporized gas or condensed liquid flows out from the collecting pipe 1 on the other side.

When the heat exchanger is used as an evaporator, moisture in the air is easy to condense on the outer wall of the heat exchange tube 2 to generate water drops, and in the embodiment, the heat exchange tube 2 is arranged in an inclined manner, namely the heat exchange tube 2 and the horizontal plane form a preset acute angle α, so that the water drops can flow down along the inclined tube wall of the heat exchange tube 2, the drainage performance is good, and the heat exchange effect of the heat exchanger is ensured.

The specific structure of the collecting pipe 1 is shown in fig. 2, in this embodiment, the collecting pipe 1 is vertically arranged and is a hollow structure to introduce or converge a heat exchange medium, a slot 11 is formed in one side surface of the collecting pipe 1, the slot 11 is used for inserting the heat exchange pipe 2, the two collecting pipes 1 are arranged in parallel and oppositely, the slots 11 on the two collecting pipes 1 are aligned, and the heat exchange pipe 2 can be inserted into the two aligned slots 11.

In the present embodiment, the header 1 has a circular tubular structure, and the cross-sectional shape thereof is circular. In other embodiments, the cross-sectional shape of the header 1 may be rectangular, triangular or other suitable shapes, and the specific cross-sectional shape may be selected according to the installation environment. The above-mentioned various structures of pressure manifold 1 all fall within the scope of protection of the utility model.

The structure of the heat exchange tube 2 is shown in fig. 3. The heat exchange tube 2 is a flat tube structure, and the cross section shape of the heat exchange tube is the same as the opening shape of the slot 11. The heat exchange tube 2 is hollow, and a heat exchange medium can circulate inside the heat exchange tube 2 and exchange heat with the outside air through the tube wall of the heat exchange tube 2. A plurality of heat exchange tube openings 21 are further formed at two ends of the heat exchange tube 2, and the heat exchange tube openings 21 communicate the inner space of the heat exchange tube 2 with the inner spaces of the collecting pipes 1 at two sides, so that a passage for circulation of a heat exchange medium is formed.

In this embodiment, the number of the slots 11 and the number of the heat exchange tubes 2 are set to be multiple, wherein the multiple slots 11 are arranged in parallel along the collecting main 1 at equal intervals, each slot 11 forms a preset acute angle α with the horizontal plane, and the multiple slots 11 on the two collecting main 1 are aligned one by one, so that the multiple heat exchange tubes 2 are inserted into multiple groups of aligned slots 11.

Further, the vehicle air conditioner outdoor heat exchanger provided by the embodiment further comprises a plurality of groups of heat exchange fins 3. The multiple groups of heat exchange fins 3 are arranged between the plurality of heat exchange tubes 2 which are arranged in parallel at equal intervals, wherein a group of heat exchange fins 3 are arranged between every two adjacent heat exchange tubes 2, and the upper end and the lower end of each heat exchange fin 3 are respectively abutted against the heat exchange tubes 2 on the upper side and the lower side. The heat exchange fins 3 are equivalent to the extension of the outer wall of the heat exchange tube 2 and are used for enlarging the heat exchange area and improving the heat exchange efficiency.

The working principle of the outdoor heat exchanger of the air conditioner for the vehicle provided by the present invention is described below with reference to the accompanying drawings 1-5.

When the outdoor heat exchanger of the vehicle air conditioner is used as a condenser, a gaseous heat exchange medium is introduced into the collecting pipe 1 on one side, the collecting pipe 1 divides the gaseous heat exchange medium into the plurality of heat exchange pipes 2, the gaseous heat exchange medium in the heat exchange pipes 2 carries out heat exchange with the external air through the pipe walls of the heat exchange pipes 2 and the heat exchange fins 3, the gaseous heat exchange medium is condensed into a liquid heat exchange medium after heat exchange, and the condensed liquid heat exchange medium is converged into the collecting pipe 1 on the other side and is discharged.

When the outdoor heat exchanger of the vehicle air conditioner is used as an evaporator, a liquid heat exchange medium is introduced into the collecting pipe 1 on one side, the liquid heat exchange medium is divided by the collecting pipe 1 and flows into the plurality of heat exchange pipes 2, the liquid heat exchange medium in the heat exchange pipes 2 exchanges heat with the outside air through the pipe walls of the heat exchange pipes 2 and the heat exchange fins 3, the liquid heat exchange medium is vaporized and evaporated into a gaseous heat exchange medium after heat exchange, and the gaseous heat exchange medium is converged into the collecting pipe 1 on the other side and is discharged. After the air exchanges heat with the liquid heat exchange medium in the heat exchange tube 2 through the tube wall of the heat exchange tube 2 and the heat exchange fins 3, the temperature is reduced, and moisture in the air is condensed into water drops and attached to the tube wall of the heat exchange tube 2. Because the slope of heat exchange tube 2 sets up in this embodiment for the water droplet can flow down from the pipe wall of heat exchange tube 2 slope under the effect of gravity, avoided the water droplet to gather on heat exchange tube 2 and further frosted, improved vehicle air conditioner outdoor heat exchanger's whole heat exchange efficiency.

The utility model also provides a vehicle air conditioner, it includes the above vehicle air conditioner outdoor heat exchanger. In this vehicle air conditioner, above-mentioned vehicle air conditioner outdoor heat exchanger is used as the condenser when summer, is used as the evaporimeter when winter, because the tilting of the heat exchange tube of vehicle air conditioner outdoor heat exchanger arranges, makes the utility model provides a vehicle air conditioner can guarantee good refrigeration performance when summer, can guarantee good heating performance and drainage performance when winter again.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. The outdoor heat exchanger of the vehicle air conditioner is characterized by comprising two collecting pipes (1) which are vertically and parallelly arranged and a heat exchange pipe (2) arranged between the two collecting pipes (1), wherein two ends of the heat exchange pipe (2) are respectively inserted into the two collecting pipes (1), and the heat exchange pipe (2) and a horizontal plane form a preset acute angle α.

2. The outdoor heat exchanger of air conditioner for vehicle according to claim 1, wherein the two collecting pipes (1) are respectively provided with a slot (11) on the side surfaces opposite to each other, the slot (11) and the horizontal plane form the preset acute angle α, and the end of the heat exchange pipe (2) is inserted into the slot (11).

3. The vehicle air-conditioning outdoor heat exchanger according to claim 2, characterized in that the slots (11) on both of the headers (1) are aligned.

4. An outdoor heat exchanger for an air conditioner of a vehicle as set forth in claim 1, wherein said preset acute angle α is 5 ° to 9 °.

5. An outdoor heat exchanger for air conditioners for vehicles according to claim 4, wherein said preset acute angle α is 7 °.

6. The outdoor heat exchanger of air conditioner for vehicle according to claim 2, wherein the number of the slots (11) and the number of the heat exchanging pipes (2) are plural, and the plural slots (11) are arranged in parallel and at equal intervals on the header pipe (1).

7. The outdoor heat exchanger of the air conditioner for the vehicle as claimed in claim 6, further comprising a plurality of sets of heat exchange fins (3), wherein one set of heat exchange fins (3) is arranged between every two adjacent heat exchange tubes (2), and the upper and lower ends of each set of heat exchange fins (3) are respectively abutted against the two adjacent heat exchange tubes (2).

8. The outdoor heat exchanger of air conditioner for vehicle according to claim 1, wherein the cross-sectional shape of the header pipe (1) is circular or rectangular.

9. The outdoor heat exchanger of air conditioner for vehicle according to claim 1, characterized in that the number of the heat exchange tubes (2) is 30-60.

10. An air conditioner for a vehicle, characterized by comprising the air conditioner outdoor heat exchanger for a vehicle as recited in any one of claims 1 to 9.

Images