CN210425644U - Evaporator, evaporator assembly and air conditioning unit - Google Patents
Evaporator, evaporator assembly and air conditioning unit Download PDFInfo
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- CN210425644U CN210425644U CN201920827192.1U CN201920827192U CN210425644U CN 210425644 U CN210425644 U CN 210425644U CN 201920827192 U CN201920827192 U CN 201920827192U CN 210425644 U CN210425644 U CN 210425644U
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Abstract
The utility model relates to a refrigeration technology field especially relates to evaporimeter, evaporimeter subassembly and air conditioning unit. An evaporator comprises a frame, a heat exchange tube set and fins, wherein the heat exchange tube set comprises a plurality of heat exchange tube units, the heat exchange tube units are divided into a first heat exchange region and a second heat exchange region which are arranged in parallel, a first inlet of each heat exchange tube unit in the first heat exchange region corresponds to a first outlet, and a second inlet of each heat exchange tube unit in the second heat exchange region corresponds to at least two second outlets. An evaporator assembly comprises a liquid distributor, a capillary tube group and an evaporator, wherein the evaporator adopts the evaporator. An air conditioning unit comprises a compressor, an expansion valve, an outdoor heat exchanger and an evaporator assembly, wherein the evaporator assembly adopts the evaporator assembly. The utility model has the advantages that: the mode of less inlet and more outlet is adopted, and the area of the heat exchanger is increased and the heat exchange efficiency is improved through reasonable arrangement of the flow.
Description
Technical Field
The utility model relates to a refrigeration technology field especially relates to evaporimeter, evaporimeter subassembly and air conditioning unit.
Background
In a refrigeration system, an evaporator is an important component of four major components for refrigeration, and performs a heat exchange function with the outside. The evaporator has higher requirements on the flowing uniformity of the heat-exchanging refrigerant, the heat-exchanging amount is reduced due to the uneven flowing of the refrigerant, and the heat-exchanging efficiency of the evaporator is reduced due to the uneven heat-exchanging. The arrangement of the evaporator pipelines influences the flowing state and the heat exchange performance of the refrigerant, the theoretical calculation of the arrangement of the pipelines of the evaporator is complex, the model is difficult to establish, and the difficulty in arrangement of the pipelines is increased.
After the size of the evaporator is determined, the optimization process is an important mode for improving the heat exchange efficiency of the evaporator, the design of the process is very important, and whether the design is reasonable or not can directly result in the heat exchange quantity and the energy efficiency ratio. The prior heat exchanger has the following problems: 1. the process design is unreasonable, which causes insufficient heat exchange amount and low heat exchange efficiency; 2. the individual capillary tubes are not properly designed for length, resulting in uneven refrigerant distribution. Therefore, the reasonable design management flow is an important measure for reducing the flow resistance of the refrigerant, improving the heat exchange uniformity and finally improving the heat exchange efficiency of the evaporator.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the evaporator heat exchange efficiency is low, the heat transfer volume is not enough and the refrigerant distributes inhomogeneously, the utility model provides an evaporator, technical scheme is as follows:
an evaporator comprises a frame, a heat exchange tube group and fins, wherein the frame is vertically arranged, the fins are installed on the frame, the heat exchange tube group is inserted in the fins, the heat exchange tube group comprises a plurality of heat exchange tube units, the heat exchange tube units are divided into a first heat exchange area and a second heat exchange area, and the first heat exchange area and the second heat exchange area are arranged in parallel;
the first inlet of each heat exchange tube unit in the first heat exchange zone corresponds to one first outlet, and the second inlet of each heat exchange tube unit in the second heat exchange zone corresponds to at least two second outlets.
It can be understood that the heat exchange area can be increased by adopting a mode of less inlet and more outlet, the heat exchange effect of the evaporator is fully exerted, and the heat exchange efficiency is improved.
In one embodiment, each heat exchange tube unit in the second heat exchange zone comprises a plurality of heat exchange tubes which are communicated with each other, the heat exchange tubes are divided into a preheating zone and a reheating zone, the second inlet is arranged in the preheating zone, and the two second outlets are arranged in the reheating zone.
It can be understood that, because the fan is located at the top of the evaporator, the heat exchange effect of the first heat exchange zone is better than that of the second heat exchange zone, after the second heat exchange zone is preheated by the preheating zone, because the heat exchange is insufficient, the refrigerant at the moment is in a gas-liquid two-phase state, and needs to be reheated by the reheating zone, so that sufficient heat exchange can be ensured.
In one embodiment, the reheating zone is provided with a first branch and a second branch which are arranged in parallel, the preheating zone is provided with a tee structure, and the first branch and the second branch are respectively connected to the tee structure.
It can be understood that after the refrigerant is preheated in the preheating zone, the refrigerant is divided into a first branch and a second branch which are connected in parallel through the three-way structure for reheating, so that the flow is shortened and the heat exchange efficiency is improved on the basis of ensuring sufficient heat exchange.
In one embodiment, the first outlet in the first heat transfer zone is located above the first inlet and the second outlet in the second heat transfer zone is located below the second inlet in the vertical direction.
It can be understood that the refrigerant is in a liquid state when entering the first inlet and the second inlet, and is changed into a gaseous state after heat exchange in the first heat exchange zone and the second heat exchange zone, and the gaseous refrigerant flows upwards quickly, and the flow resistance loss can be reduced by adopting a design of downward inlet and upward outlet.
In one embodiment, the first heat exchange zone is located above the second heat exchange zone along the vertical direction, and the flow length of the heat exchange tube unit in the second heat exchange zone is greater than that of the heat exchange tube unit in the first heat exchange zone.
It can be understood that, because the fan is located at the top of the evaporator, the heat exchange efficiency of the first heat exchange zone is different from that of the second heat exchange zone, and the second heat exchange zone needs a longer flow path to ensure that the refrigerant can exchange heat sufficiently, so that the refrigerant is in a gaseous state when exiting the evaporator.
In one embodiment, the first heat exchange area comprises a plurality of heat exchange tube units, the heat exchange tube units in the first heat exchange area are distributed in sequence from top to bottom along the vertical direction, and the flow path of the lowermost heat exchange tube unit is longer than that of the uppermost heat exchange tube unit.
In one embodiment, the second heat exchange area comprises a plurality of heat exchange tube units, the heat exchange tube units in the second heat exchange area are distributed in sequence from top to bottom along the vertical direction, and the flow path of the lowermost heat exchange tube unit is longer than that of the uppermost heat exchange tube unit.
In one embodiment, the flow path of the heat exchange tube unit adjacent to the first heat exchange zone in the second heat exchange zone is longer than that of the heat exchange tube unit adjacent to the second heat exchange zone in the first heat exchange zone.
It can be understood that, because the fan is installed the evaporimeter top, along vertical direction, the amount of wind reduces from last bottom to bottom in proper order, heat exchange tube unit's heat exchange efficiency reduces from last bottom to bottom in proper order, for guaranteeing every heat exchange tube unit can both fully exchange heat, heat exchange tube unit's flow lengthens from last bottom to top in proper order.
The utility model discloses still provide following technical scheme:
an evaporator assembly comprises a liquid distributor, a capillary tube group and an evaporator, wherein the liquid distributor is connected with the capillary tube, the capillary tube group is connected with the evaporator, and the evaporator adopts the evaporator.
The utility model discloses still provide following technical scheme:
the utility model provides an air conditioning unit, includes compressor, expansion valve, first heat exchanger and evaporator assembly, the one end of compressor with first heat exchanger is connected, the other end with evaporator assembly connects, the one end of expansion valve with first heat exchanger is connected, the other end with evaporator assembly connects, compressor, expansion valve, first heat exchanger and evaporator assembly constitute circulation circuit, evaporator assembly adopts foretell evaporator assembly.
Compared with the prior art, the evaporator assembly and the air conditioning unit are provided with a first heat exchange area and a second heat exchange area which are arranged in parallel, a first inlet of each heat exchange tube unit in the first heat exchange area corresponds to one first outlet, a second inlet of each heat exchange tube unit in the second heat exchange area corresponds to at least two second outlets, and an arrangement mode of less inlets and more outlets is adopted, so that the heat exchange area is increased, the heat exchange effect of the evaporator is fully exerted, the heat exchange efficiency is improved, and the energy efficiency of the whole refrigerating system is further improved.
Drawings
Fig. 1 is a schematic structural diagram of an evaporator provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of an evaporator assembly provided by the present invention;
fig. 4 is a schematic structural diagram of the air conditioning unit provided by the present invention.
The symbols in the drawings represent the following meanings:
100-an evaporator assembly; 10-an evaporator; 11-a frame; 12-a heat exchange tube set; 12 a-a first heat transfer zone; 12 b-a second heat transfer zone; 121-a first inlet; 122 — a first outlet; 123-a second inlet; 124-a second outlet; 125-preheating zone; 126 — reheat zone; 126 a-first branch; 126 b-second branch; 126 c-a three-way structure; 13-a fin; 20-liquid separator; 20 a-a shunt port; 30-capillary group; 40-a header; 200-a compressor; 300-a first heat exchanger; 400-an expansion valve; 500-second heat exchanger.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that 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 a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 4, the present invention provides an air conditioning unit (not labeled), including an evaporator assembly 100, a compressor 200, a first heat exchanger 300 and an expansion valve 400, wherein an outlet of the evaporator assembly 100 is connected to an inlet of the compressor 200, an outlet of the compressor 200 is connected to one end of the first heat exchanger 300, the other end of the first heat exchanger 300 is connected to one end of the expansion valve 400, and the other end of the expansion valve 400 is connected to an inlet of the evaporator assembly 100.
With continued reference to fig. 1 to 4, the air conditioning unit further includes a second heat exchanger 500, an outlet of the second heat exchanger 500 is connected to one end of the expansion valve 400, another end of the expansion valve 400 is connected to one end of the first heat exchanger 300, another end of the first heat exchanger 300 is connected to an inlet of the compressor 200, and an outlet of the compressor 200 is connected to an inlet of the second heat exchanger 500.
In the cooling mode, the second heat exchanger 500 stops operating, and the refrigerant absorbs heat in the evaporator assembly 100, then enters the compressor 200 for compression, further enters the first heat exchanger 300 for heat release, passes through the expansion valve 400 for throttling and pressure reduction, and finally returns to the evaporator assembly 100 for circulating cooling.
In the heating mode, the evaporator assembly 100 stops operating, and the refrigerant releases heat in the second heat exchanger 500, enters the expansion valve 400 for throttling and pressure reduction, enters the first heat exchanger 300 for absorbing heat, enters the compressor 200 for compression, and finally returns to the second heat exchanger 500 for circulating heating. In this embodiment, the first heat exchanger 300 is a plate heat exchanger, and the second heat exchanger 500 is a shell-and-tube heat exchanger, but in other embodiments, the first heat exchanger 300 and the second heat exchanger 500 may also be other heat exchangers.
It is understood that in the present embodiment, the air conditioning unit is applied to a low temperature heat pump system, and of course, in other embodiments, the air conditioning unit may be applied to other systems.
With continued reference to fig. 1-3, evaporator assembly 100 includes an evaporator 10, a liquid separator 20, a plurality of capillary tubes 30 (only one shown), and a header 40. The inlet of the liquid separator 20 is connected to the expansion valve 400, the outlet thereof is connected to the capillary tube group 30, the capillary tube group 30 is connected to the inlet of the evaporator 10, the outlet of the evaporator 10 is connected to the header 40, and the header 40 is connected to the compressor 200 through a pipe.
It will be appreciated that the liquid separator 20 filters impurities in the refrigeration system to prevent impurities from entering the capillary tube set 30 and clogging, and at the same time, the liquid separator 20 uniformly separates the liquid refrigerant and distributes the liquid refrigerant to the capillary tube set 30, and the liquid refrigerant enters the evaporator 10 through the capillary tube set 30 to exchange heat, and finally exits the evaporator 10 to enter the header 40 to be collected and enter the refrigeration system.
With continued reference to fig. 1 and fig. 3, the evaporator 10 includes a frame 11, a heat exchange tube group 12 and fins 13, the frame 11 is vertically disposed, the fins 13 are installed on the frame 11, the heat exchange tube group 12 is inserted into the fins 13, and the frame 11 is used for fixing and installing the heat exchange tube group 12 and the fins 13.
Further, the heat exchange tube group 12 includes a plurality of heat exchange tube units (not labeled), the plurality of heat exchange tube units are divided into a first heat exchange area 12a and a second heat exchange area 12b, the first heat exchange area 12a is arranged in parallel with the second heat exchange area 12b, and the first heat exchange area 12a is located above the second heat exchange area 12 b. Each heat exchange tube unit of the first heat exchange zone 12a is provided with a first inlet 121 and a first outlet 122, each heat exchange tube unit of the second heat exchange zone 12b is provided with a second inlet 123 and a second outlet 124, each first inlet 121 corresponds to one first outlet 122, and each second inlet 123 corresponds to at least two second outlets 124. That can understand, what the heat exchange tube unit in this embodiment adopted is the mode of advancing more by less to increase heat transfer area, improve the heat transfer effect.
Preferably, in this embodiment, 4 first inlets 121, 4 first outlets 122, 4 second inlets 123 and 8 second outlets 124 are provided, that is, an 8-in-12-out design is adopted, and of course, in other embodiments, different numbers of first inlets 121, first outlets 122, second inlets 123 and second outlets 124, for example, 6-in-9-out, 10-in-15-out, etc., may be provided according to the size of the evaporator 10 or the required cooling capacity, which is not exhaustive.
Further, each heat exchange tube unit comprises a plurality of interconnected heat exchange tubes (not labeled), and the interconnected heat exchange tubes are formed by inserting and combining a plurality of inverted U-shaped tubes (not labeled) and a plurality of inclined U-shaped tubes (not labeled). Along the vertical direction of frame 11, first export 122 is located the top of first import 121, and second export 124 is located the top of second import 123, and the refrigerant gets into from first import 121 and second import 123, and the interlude flows through a plurality of U type pipes and a plurality of oblique U type pipes in proper order, exchanges heat with the external world, and the refrigerant becomes the gaseous state from liquid state, and gaseous state refrigerant up-flows fast, consequently, adopts the design of lower entering upper outlet, reducible flow resistance loss.
Still further, since the fan (not shown) is installed on the top of the evaporator 10, the air volume is sequentially reduced from top to bottom along the vertical direction, and in order to ensure that each heat exchange tube unit can fully exchange heat, the flow path of the heat exchange tube unit located below is longer than that of the heat exchange tube unit located above. The plurality of heat exchange tube units in the first heat exchange zone 12a are distributed in parallel in sequence from top to bottom along the vertical direction, and the flow path of the lowermost heat exchange tube unit is longer than that of the uppermost heat exchange tube unit. Similarly, the plurality of heat exchange tube units in the second heat exchange zone 12b are distributed in parallel in the vertical direction from top to bottom, and the flow path of the lowermost heat exchange tube unit is longer than that of the uppermost heat exchange tube unit. The flow of the heat exchange tube unit adjacent to the first heat exchange zone 12a in the second heat exchange zone 12b is longer than the flow of the heat exchange tube unit adjacent to the second heat exchange zone 12b in the first heat exchange zone 12 a. Preferably, in the present embodiment, the flow path of the lowermost heat exchange tube unit in the second heat exchange zone 12b is 5% to 15% longer than that of the uppermost heat exchange tube unit, and more preferably 10%. The flow path of the heat exchange tube unit adjacent to the first heat exchange region 12a in the second heat exchange region 12b is 5% -10% longer than that of the heat exchange tube unit adjacent to the second heat exchange region 12b in the first heat exchange region 12a, and the more preferable scheme is 7%. The pipe diameter of the U-shaped pipe is 7mm, and the center distance of the U-shaped pipe is 21 mm.
With continued reference to fig. 1 and 2, the second heat transfer zone 12b includes a preheating zone 125 and a reheating zone 126, the preheating zone 125 and the reheating zone 126 are connected in series, the second inlet 123 is disposed in the preheating zone 125, and the second outlet 124 is disposed in the reheating zone 126. A three-way structure 126c is arranged in the reheating region 126, the reheating region 126 is communicated with the preheating region 125 through the three-way structure 126c, the reheating region 126 comprises a first branch 126a and a second branch 126b which are arranged in parallel, and the first branch 126a and the second branch 126b are respectively connected with the three-way structure 126 c. The refrigerant flows into the preheating zone 125 from the second inlet 123 to be preheated, becomes a gas-liquid two-phase refrigerant after heat exchange, is divided into two paths by the three-way structure 126c, flows into the first branch 126a and the second branch 126b simultaneously, and is re-heated in the refrigerant storage re-heating zone 126, and changes the gas-liquid two-phase refrigerant into the gas phase. In this embodiment, the three-way structure 126c is a Y-shaped three-way pipe, and certainly, in other embodiments, the three-way structure 126c may also adopt other three-way structures having the same function.
Referring to fig. 2 and 3, the liquid separator 20 is provided with a plurality of branch flow ports 20a, the branch flow ports 20a are respectively connected to the capillary tube group 30, and the capillary tube group 30 is respectively connected to the first inlet 121 and the second inlet 123 of each heat exchange tube unit of the evaporator 10, so as to uniformly distribute the refrigerant and equally feed the refrigerant into the evaporator 10 for heat exchange.
Further, the capillary tube group 30 includes a first capillary tube group 31 and a second capillary tube group 32, the first capillary tube group 31 is connected to the first inlet 121 of the first heat exchange region 12a, and the second capillary tube group 32 is connected to the second inlet 123 of the second heat exchange region 12 b.
It can be understood that the first heat transfer zone 12a has a better heat exchange effect than the second heat transfer zone 12b, and the flow rate of the refrigerant in the first heat transfer zone 12a should be faster than that of the second heat transfer zone 12b, so that it is necessary to design the first capillary tube group 31 connected to the first heat transfer zone 12a shorter than the second capillary tube group 32 connected to the second heat transfer zone 12 b. Preferably, in this embodiment, the second capillary group is 30% to 40% longer than the first capillary group, more preferably 36%.
During operation, the liquid refrigerant from the expansion valve 400 is filtered by the liquid separator 20 to remove impurities, and then is uniformly and equally distributed to the first capillary tube group 31 and the second capillary tube group 32 through the branch flow opening 20a, the uniformly distributed refrigerant enters the first inlet 121 of the first heat exchange region 12a and the second inlet 123 of the second heat exchange region 12b, and the refrigerant entering the first heat exchange region 12a is subjected to rapid heat exchange by the plurality of inverted U-shaped tubes and the inclined U-shaped tubes, and then is changed into a gaseous refrigerant, which rapidly flows upwards, and flows out of the first outlet 122. The refrigerant entering the second heat exchange zone 12b enters the preheating zone 125 from the second inlet 123, is converted into a gas-liquid two-phase refrigerant after heat exchange is performed by the plurality of inverted U-shaped tubes and the inclined U-shaped tubes, is then connected in parallel by the three-way structure 126c to enter the first branch 126a and the second branch 126b, is fully exchanged heat by the plurality of inverted U-shaped tubes and the inclined U-shaped tubes, is converted into a gaseous refrigerant, and rapidly flows out upward from the second outlet 124. The gaseous refrigerant exiting the first outlet 122 and the second outlet 124 is collected in the header 40 and enters the refrigeration system for further operation.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An evaporator comprises a frame, a heat exchange tube set and fins, wherein the frame is vertically arranged, the fins are arranged on the frame, the heat exchange tube set is inserted in the fins,
the heat exchange tube group comprises a plurality of heat exchange tube units, the heat exchange tube units are divided into a first heat exchange area and a second heat exchange area, and the first heat exchange area and the second heat exchange area are arranged in parallel;
the first inlet of each heat exchange tube unit in the first heat exchange zone corresponds to one first outlet, and the second inlet of each heat exchange tube unit in the second heat exchange zone corresponds to at least two second outlets.
2. The evaporator as recited in claim 1, wherein each heat exchange tube unit in said second heat exchange zone comprises a plurality of interconnected heat exchange tubes, said plurality of heat exchange tubes being divided into a preheating zone and a reheating zone, said second inlet being disposed in said preheating zone and two said second outlets being disposed in said reheating zone.
3. The evaporator as recited in claim 2, wherein said reheating section has a first branch and a second branch connected in parallel, said preheating section has a tee structure, and said first branch and said second branch are connected to said tee structure respectively.
4. An evaporator according to claim 1 wherein the first outlet in the first heat transfer zone is located above the first inlet and the second outlet in the second heat transfer zone is located above the second inlet in the vertical direction.
5. The evaporator as recited in claim 1, wherein said first heat exchange zone is located above said second heat exchange zone in the vertical direction, and the flow path length of the heat exchange tube unit in said second heat exchange zone is longer than the flow path length of the heat exchange tube unit in said first heat exchange zone.
6. The evaporator as recited in claim 1, wherein said first heat exchange zone comprises a plurality of said heat exchange tube units, said plurality of heat exchange tube units in said first heat exchange zone are distributed along the vertical direction and from top to bottom, and the flow path of the lowermost heat exchange tube unit is longer than the flow path of the uppermost heat exchange tube unit.
7. The evaporator as recited in claim 1, wherein said second heat exchange zone comprises a plurality of said heat exchange tube units, said plurality of heat exchange tube units in said second heat exchange zone are distributed along the vertical direction and from top to bottom, and the flow path of the lowermost heat exchange tube unit is longer than the flow path of the uppermost heat exchange tube unit.
8. An evaporator according to claim 5 wherein the flow path of the heat exchange tube units adjacent to the first heat exchange zone in the second heat exchange zone is longer than the flow path of the heat exchange tube units adjacent to the second heat exchange zone in the first heat exchange zone.
9. An evaporator assembly comprising a dispenser, a capillary tube bank and an evaporator, wherein the dispenser is connected to the capillary tube bank, the capillary tube bank is connected to the evaporator, and the evaporator is the evaporator according to any one of claims 1 to 8.
10. An air conditioning unit is characterized by comprising a compressor, an expansion valve, a first heat exchanger and an evaporator assembly, wherein one end of the compressor is connected with the first heat exchanger, the other end of the compressor is connected with the evaporator assembly, one end of the expansion valve is connected with the first heat exchanger, the other end of the expansion valve is connected with the evaporator assembly, the compressor, the expansion valve, the first heat exchanger and the evaporator assembly form a circulation loop, and the evaporator assembly adopts the evaporator assembly as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920827192.1U CN210425644U (en) | 2019-06-03 | 2019-06-03 | Evaporator, evaporator assembly and air conditioning unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920827192.1U CN210425644U (en) | 2019-06-03 | 2019-06-03 | Evaporator, evaporator assembly and air conditioning unit |
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| CN210425644U true CN210425644U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719901A (en) * | 2021-08-26 | 2021-11-30 | Tcl空调器(中山)有限公司 | Air conditioner heat exchange assembly and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719901A (en) * | 2021-08-26 | 2021-11-30 | Tcl空调器(中山)有限公司 | Air conditioner heat exchange assembly and air conditioner |
| CN113719901B (en) * | 2021-08-26 | 2023-09-19 | Tcl空调器(中山)有限公司 | Air conditioner heat exchange assembly and air conditioner |
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