CN113719901A

CN113719901A - Air conditioner heat exchange assembly and air conditioner

Info

Publication number: CN113719901A
Application number: CN202110987300.3A
Authority: CN
Inventors: 刘金斗; 汪东明; 曹国平; 陈为涛; 刘坤
Original assignee: TCL Air Conditioner Zhongshan Co Ltd
Current assignee: TCL Air Conditioner Zhongshan Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-30
Anticipated expiration: 2041-08-26
Also published as: CN113719901B

Abstract

The application provides an air conditioner heat exchange assembly and an air conditioner, wherein the air conditioner heat exchange assembly comprises a first distribution pipe, a plurality of heat exchange pipe sets and a second distribution pipe which are sequentially communicated, the air conditioner heat exchange assembly further comprises a plurality of connectors, each connector is provided with a first end, a second end and a third end, the first end and the second end are respectively connected with one end of each heat exchange pipe set, and the first distribution pipe and the second distribution pipe are respectively connected with one third end; the one-way connecting pipe is provided with a fourth end and a fifth end, and the fourth end and the fifth end are respectively connected with one third end. This application has set up a plurality of connectors and one-way connecting pipe, and the degree of supercooling is reinforceed to the control through reposition of redundant personnel and the confluence to the refrigerant to reduce condenser temperature, promote the coefficient of refrigeration, thereby can effectively improve heat exchange efficiency.

Description

Air conditioner heat exchange assembly and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioner heat exchange assembly and an air conditioner.

Background

The heat exchanger is an important part of the air conditioner, and the performance of the heat exchanger directly influences the overall efficiency of the air conditioner.

At present, with the issuance of a new round of air conditioner energy efficiency upgrade policy, heat exchangers in the market are developing toward light weight from the viewpoint of energy saving. However, a heat exchanger of an indoor unit of an air conditioner generally needs to be provided with a plurality of groups of pipelines, so that gas-liquid flow of refrigerant in each group of pipelines is uniformly distributed, and the conventional air conditioner generally adopts a mode of reducing a flow path of a heat exchanger module to improve supercooling degree and improve a refrigeration coefficient, so that the heat exchange area of the pipeline with smaller flow is easily not fully utilized, the heat exchange efficiency is reduced, and the energy efficiency of the whole refrigeration system is influenced.

Disclosure of Invention

The application provides an air conditioner heat exchange assembly and an air conditioner to solve the problem that the air conditioner heat exchange efficiency is low.

On the one hand, this application provides an air conditioner heat transfer subassembly, including first distributing pipe, many heat transfer pipe groups and the second distributing pipe that communicates in proper order, air conditioner heat transfer subassembly still includes:

a plurality of connectors having a first end, a second end and a third end, the first end and the second end being respectively connected to an end of one of the heat exchange tube sets, the first distribution tube and the second distribution tube being respectively connected to one of the third ends;

the one-way connecting pipe is provided with a fourth end and a fifth end, and the fourth end and the fifth end are respectively connected with one third end.

In one possible implementation manner of the present application, the fourth end and the fifth end are disposed adjacent to each other.

In one possible implementation manner of the present application, the first distribution pipe includes:

a first header pipe for inflow or outflow of refrigerant to or from the heat exchange tube bank;

one end of the first shunt pipe is connected with the first main pipe, and the other end of the first shunt pipe is connected with the third end;

and the first one-way pipe is connected with the first main pipe, and the refrigerant flows out of the heat exchange pipe group in one way along the first one-way pipe.

In one possible implementation manner of the present application, the second distribution pipe includes:

a second header pipe for inflow or outflow of refrigerant to or from the heat exchange tube bank;

one end of the second shunt pipe is connected with the second main pipe, and the other end of the second shunt pipe is connected with the third end;

and one end of the second one-way pipe is connected with the second header pipe, the other end of the second one-way pipe is connected with the third end, and the refrigerant flows out of the heat exchange pipe group in one way along the second one-way pipe.

one end of the third one-way pipe is connected with the second shunt pipe, and the other end of the third one-way pipe is connected with a third end;

and one end of the fourth one-way pipe is connected with the second shunt pipe, and the other end of the fourth one-way pipe is connected with the other third end.

In a possible implementation manner of the present application, the connector connected by the one-way connecting pipe is located between the connector connected by the first shunt pipe and the connector connected by the second one-way pipe.

In a possible implementation manner of the present application, the first shunt tube is connected to the end of the connector higher than the second one-way tube is connected to the end of the connector.

In a possible implementation manner of the present application, a positioning mechanism is disposed between the one-way connection pipe and the third end.

In one possible implementation manner of the present application, the positioning mechanism includes:

the first flaring head is arranged at one end of the one-way connecting pipe, and the diameter of the first flaring head is gradually increased along one side far away from the one-way connecting pipe;

a second flaring head disposed at an end of the third end, the first flaring head and the second flaring head being adapted.

In one possible implementation manner of the present application, a check valve is disposed in the one-way connection pipe.

On the other hand, this application still provides an air conditioner, includes air conditioner heat exchange assembly.

The application provides an air conditioner heat exchange assembly and an air conditioner, through the arrangement of a plurality of connectors and one-way connecting pipes, when in refrigeration operation, a refrigerant flows in from a first distribution pipe, then is divided by the connectors connected with the first distribution pipe, and flows into a heat exchange pipe set through two flow paths, at the moment, the refrigerant is converged into one path by the connectors connected with one end of the one-way connecting pipe, then is divided secondarily by the connectors connected with the other end of the one-way connecting pipe, finally, the refrigerants of the two flow paths flow out of the heat exchange pipe set and are converged to the connectors connected with a second distribution pipe, and flow out of the second distribution pipe to finish condensation of the refrigerant, compared with a single flow path, two-in and two-out of the refrigerant flow paths are realized through the arrangement of the connectors and the one-way connecting pipes, and the refrigerant supercooling degree is improved through the control of the diversion and convergence of the refrigerant, thereby reducing the temperature of the condenser, improving the refrigeration coefficient and effectively improving the heat exchange efficiency.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an air conditioner heat exchange assembly provided in an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a connector in an air conditioner heat exchange assembly provided by the embodiment of the application.

Fig. 4 is a schematic structural diagram of a connector in an air conditioner heat exchange assembly provided by the embodiment of the application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides an air conditioner heat exchange assembly and an air conditioner, which are respectively introduced in detail below.

Referring to fig. 1 to 4, an embodiment of the present invention first provides an air conditioner heat exchange assembly, which includes a first distribution pipe 100, a plurality of heat exchange pipe sets 300 and a second distribution pipe 200, which are sequentially communicated with each other. The heat exchange tube set 300 includes U-shaped hairpin tubes 31, fins (not shown), and connecting tubes 32, the U-shaped hairpin tubes 31 are integrally connected by the fins for circulation of a refrigerant, and the connecting tubes 32 are connected between the two U-shaped hairpin tubes 31, so that the U-shaped hairpin tubes 31 are sequentially connected to form a refrigerant circulation channel.

In which the first distribution pipe 100 is one of a refrigerant input pipe and a refrigerant output pipe, and the second distribution pipe 200 is the other of the refrigerant input pipe and the refrigerant output pipe, for example, if the first distribution pipe 100 is the refrigerant input pipe, the second distribution pipe 200 is the refrigerant output pipe. Wherein the refrigerant input pipe is used for inputting the refrigerant into the heat exchange tube group 300, and the refrigerant output pipe is used for outputting the refrigerant from the heat exchange tube group 300.

Wherein, the air conditioner heat exchange assembly further comprises a plurality of connectors 310 and a one-way connecting pipe 400.

The plurality of connectors 310 are used for merging or dividing refrigerant, and specifically, the connectors 310 may be three-way connectors, the connectors 310 have a first end 301, a second end 302 and a third end 303, and the first end 301 and the second end 302 are respectively connected with the ends of one heat exchange tube set 300. The first distribution pipe 100 and the second distribution pipe 200 are connected to a third terminal 303. The connection heads 310 may include a first joint 311, a second joint 312, a third joint 313, a fourth joint 314, etc., and the number of the connection heads 310 may be set according to the number.

The one-way connection pipe 400 is used for one-way circulation of refrigerant along the heat exchange tube set 300, specifically, the one-way connection pipe 400 may be a bent pipe, such as a U-shaped pipe, a V-shaped pipe, etc., the one-way connection pipe 400 has a fourth end 401 and a fifth end 402, the fourth end 401 and the fifth end 402 are respectively connected to one third end 303, and the third connection end is further used for connecting the first distribution pipe 100 or the second distribution pipe 200. In this embodiment, the fourth end 401 of the one-way connection pipe 400 is connected to the third end 303 of the first joint 311, the fifth end 402 of the one-way connection pipe 400 is connected to the third end 303 of the second joint 312, the first distribution pipe 100 is connected to the third end 303 of the third joint 313, and the second distribution pipe 200 is connected to the third end 303 of the fourth joint 314.

The air conditioner heat exchange assembly of the embodiment of the application enables the refrigerant to flow in from the first distribution pipe 100, then to be divided by the third joint 313 connected with the first distribution pipe 100, and to flow into the heat exchange pipe set 300 through two flow paths during the cooling operation, at this time, the refrigerant is converged into one path by the first joint 311 connected with one end of the one-way connection pipe 400, and then to be divided for the second time by the second joint 312 connected with the other end of the one-way connection pipe 400, and finally to flow out from the heat exchange pipe set 300, to be converged to the fourth joint 314 connected with the second distribution pipe 200, and to flow out from the second distribution pipe 200, so as to complete the condensation of the refrigerant, compared with a single flow path, the two-in and two-out refrigerant flow paths are realized through the arrangement of the connection head 310 and the one-way connection pipe 400, and the degree of supercooling of the refrigerant is improved through the control of the division and convergence of the refrigerant, thereby reducing the temperature of the condenser, improving the refrigeration coefficient and effectively improving the heat exchange efficiency.

In some embodiments, the fourth end 401 and the fifth end 402 are disposed adjacent to each other. Through with fourth end 401 and fifth end 402 interval and adjacent setting, other three way connection of middle no cross-over connection to can be less for the distance of the fourth end 401 that one-way connecting pipe 400 connects and the part of fifth end 402, thereby be favorable to being favorable to save material making one-way connecting pipe 400, reduce the cost of manufacture and reduce the occupation space of one-way connecting pipe 400.

In some embodiments, a one-way valve 403 is provided within one-way connector tube 400. The one-way flow of the refrigerant in the one-way connection pipe 400 is achieved by the provision of the one-way valve 403. When the air conditioner refrigerates, under the action of fluid pressure, the refrigerant passes through the check valve 403 along the opening direction of the check valve 403, that is, each loop of the air conditioner heat exchanger can be ensured to be utilized. When the air conditioner heats, the flow direction of the refrigerant is opposite to that of the refrigerant during refrigeration, the refrigerant flows against the direction of the opening of the one-way valve 403, the one-way valve 403 is controlled to be stopped under the condition that the outlet air temperature needs to be increased, the flow of the refrigerant is stopped by the one-way valve 403 on a loop with the one-way valve 403, and the loop with the one-way valve 403 cannot be utilized.

In some embodiments, the first distribution tube 100 includes a first manifold 101, a first shunt tube 102, and a first one-way tube 103.

Wherein the first manifold 101 is used for the inflow or outflow of refrigerant into or out of the heat exchange tube bank 300. One end of the first shunt tube 102 is connected to the first header 101, and the other end is connected to the third end 303. One end of the first one-way pipe 103 is connected to the first header pipe 101, and the other end is connected to the third end 303 of the fifth joint 315, and the first one-way pipe 103 is used for unidirectional outflow of refrigerant along the heat exchange tube set 300. A check valve is provided in the first check pipe 103 to allow one-way circulation of the refrigerant.

During cooling operation, refrigerant flows in from the first distribution pipe 100, since the first one-way pipe 103 is used for enabling the refrigerant to flow out in one direction along the heat exchange tube set 300, at this time, the refrigerant does not flow through the first one-way pipe 103, the refrigerant is divided by the third joint 313 connected with the first branch pipe 102, flows into the heat exchange tube set 300 through two flow paths, is converged into one path by the first joint 311 connected with one end of the one-way connecting pipe 400 and then is subjected to secondary flow division by the second joint 312 connected with the other end of the one-way connecting pipe 400, finally the two flow paths flow out from the heat exchange tube set 300 and are converged to the fourth joint 314 connected with the second distribution pipe 200, and the condensation of the refrigerant is completed by flowing out from the second distribution pipe 200, the two inlet and outlet of the refrigerant flow paths are realized by the arrangement of the connecting joint 310 and the one-way connecting pipe 400, the supercooling degree of the refrigerant is improved by controlling the flow division and convergence of the refrigerant, thereby reducing the temperature of the condenser, improving the refrigeration coefficient and effectively improving the heat exchange efficiency.

In some embodiments, referring to fig. 1, the second distribution pipe 200 includes a second main pipe 201 and a second branch pipe 202.

The second manifold 201 is used for the inflow or outflow of refrigerant into or out of the heat exchange tube bank 300. One end of the second shunt tube 202 is connected to the second manifold 201, and the other end is connected to the third end 303 of the fourth joint 314. One end of the second one-way pipe 203 is connected with the second header pipe 201, and the other end is connected with the third end 303 of the sixth joint 316, so that the refrigerant flows out along the heat exchange pipe group 300 in one way. The third end 303 of the sixth joint 316 is an end of the heat exchange tube set 300, which is beneficial for the refrigerant entering the heat exchange tube set 300 to extend a heat exchange flow path, increase the flowing time of the refrigerant in the heat exchange tube 300, and perform sufficient heat exchange, thereby being beneficial for further improving the heat exchange efficiency.

In some embodiments, the second distribution pipe 200 includes a third unidirectional pipe 204 and a fourth unidirectional pipe 205. Wherein, a check valve is arranged in each of the third check pipe 204 and the fourth check pipe 205, so that the unidirectional circulation of the refrigerant in the third check pipe 204 and the fourth check pipe 205 is realized. Specifically, in the present embodiment, the third check pipe 204 and the fourth check pipe 205 are used to realize the unidirectional flow of the refrigerant into the heat exchange tube set 300.

One end of the third unidirectional tube 204 is connected to the second shunt tube 202, and the other end is connected to a third terminal 303. One end of the fourth unidirectional tube 205 is connected to the second shunt tube 202, and the other end is connected to another third end 303. Specifically, the third unidirectional tube 204 is connected to the third end 303 of the fourth joint 314, and the fourth unidirectional tube 205 is connected to the third end 303 of the seventh joint 317.

When the heat exchanger is used as an evaporator, during heating operation, refrigerant flows into the second distribution pipe 200, flows into the heat exchange pipe set 300 through the third one-way pipe 204 and the fourth one-way pipe 205, and because the second one-way pipe 203 is not conducted, the refrigerant is shunted through the fourth joint 314 connected with the third one-way pipe 204 and the seventh joint 317 connected with the fourth one-way pipe 205, flows into the heat exchange pipe set 300, and flows out to the first header pipe 101 along the third joint 313 and the first one-way pipe 103 which are connected with each other, so that evaporation of the refrigerant is realized.

In some embodiments, the connection head 310 connected to the one-way connection pipe 400 is located between the connection head 310 connected to the first branch pipe 102 and the connection head 310 connected to the third one-way pipe 204, and in this embodiment, the first joint 311 and the second joint 312 connected to the one-way connection pipe 400 are both located between the third joint 313 connected to the first distribution pipe 100 and the sixth joint 316 connected to the second distribution pipe 200. Through the reasonable arrangement of the positions of the connectors 310, it can be ensured that after the refrigerant flows into the heat exchange tube set 300, the refrigerant flow path can flow through the one-way connecting tube 400, so that the refrigerant is divided and converged, and the refrigerant can be further ensured to exchange heat in the heat exchanger.

In some embodiments, the end of the first shunt tube 102 that connects to the connector 310 is higher than the end of the second one-way tube 203 that connects to the connector 310. Specifically, the first shunt tube 102 is connected with the third joint 313, and the second one-way tube 203 is connected with the sixth joint 316, wherein, in the vertical direction, the position of the second joint 312 is higher than the position of the sixth joint 316, and the end part passing through the first shunt tube 102 is higher than the end part of the second one-way tube 203, so that in the heating process, the refrigerant flows from bottom to top under the action of gravity, the refrigerant can avoid overcoming the gravity work to cause power consumption, thereby being beneficial to effectively slowing down frosting and improving frosting efficiency.

In some embodiments, please refer to fig. 2 and 4, a positioning mechanism is disposed between the one-way connection tube 400 and the third end 303. The positioning mechanism can prevent the unidirectional connecting pipe 400 from being inserted incorrectly or reversely with the third end 303 of other connectors 310 during use, so that the correct flow direction of the refrigerant can be ensured.

Specifically, the positioning mechanism includes a first expansion head 404 and a second expansion head 304.

The first flaring head 404 is disposed at one end of the one-way connection pipe 400, and the diameter of the first flaring head 404 becomes gradually larger along a side away from the one-way connection pipe 400. The second flaring head 304 is disposed at the end of the third end 303, and the first flaring head 404 is mated with the second flaring head 304. The first enlarged head 404 and the second enlarged head 304 can prevent the unidirectional connecting tube 400 from being inserted incorrectly or reversely, which is also beneficial to improving the assembly efficiency.

Of course, the positioning mechanism may also realize the positioning function through the cooperation of the convex point and the concave point, for example, the convex point is disposed at the end of the third end 303, the concave point is disposed at one end of the unidirectional connecting pipe 400, and the concave point and the convex point are mutually matched to realize the positioning between the third end 303 and the unidirectional connecting pipe 400.

In order to better implement the air conditioner heat exchange assembly of this application, this application embodiment still provides an air conditioner, the air conditioner include air conditioner heat exchange assembly. Because this air conditioner has above-mentioned air conditioner heat exchange assemblies, consequently has all the same beneficial effects, this embodiment is no longer repeated here.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.

The air conditioner heat exchange assembly and the air conditioner provided by the embodiment of the application are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the embodiment of the application, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the embodiment of the application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. The utility model provides an air conditioner heat transfer subassembly which characterized in that, includes first distributing pipe, many heat transfer pipe groups and the second distributing pipe that communicates in proper order, air conditioner heat transfer subassembly still includes:

2. An air conditioning heat exchange assembly according to claim 1, wherein the fourth end and the fifth end are disposed adjacent to each other.

3. An air conditioner heat exchange assembly as set forth in claim 1 wherein said first distribution tube includes:

4. An air conditioning heat exchange assembly as set forth in claim 3 wherein said second distribution pipe includes:

5. An air conditioning heat exchange assembly as recited in claim 4 wherein said second distributor pipe further comprises:

6. An air conditioner heat exchange assembly according to claim 5, wherein the connector connected with the one-way connecting pipe is located between the connector connected with the first shunt pipe and the connector connected with the second one-way pipe.

7. An air conditioner heat exchange assembly according to claim 1, wherein a positioning mechanism is arranged between the one-way connecting pipe and the third end.

8. An air conditioner heat exchange assembly as set forth in claim 7 wherein said positioning mechanism includes:

9. An air conditioner heat exchange assembly according to any one of claims 1 to 8, wherein a one-way valve is arranged in the one-way connecting pipe.

10. An air conditioner characterized by comprising the air conditioner heat exchange assembly as claimed in any one of claims 1 to 9.