CN220507001U - Indoor heat exchanger, indoor unit and air conditioner - Google Patents
Indoor heat exchanger, indoor unit and air conditioner Download PDFInfo
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- CN220507001U CN220507001U CN202322059113.6U CN202322059113U CN220507001U CN 220507001 U CN220507001 U CN 220507001U CN 202322059113 U CN202322059113 U CN 202322059113U CN 220507001 U CN220507001 U CN 220507001U
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- 239000003507 refrigerant Substances 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of air conditioners, in particular to an indoor heat exchanger, an indoor unit and an air conditioner. This application aims at solving the problem that indoor heat exchanger does not have the reposition of redundant personnel design and leads to the heat transfer effect poor. For this purpose, the indoor heat exchanger of this application is including the interior heat exchange pipeline of arranging and the heat exchange pipeline of arranging that are independent each other, interior first end of arranging the heat exchange pipeline is provided with first connecting pipe, interior second end of arranging the heat exchange pipeline is provided with the second connecting pipe, outer first end of arranging the heat exchange pipeline is provided with the third connecting pipe, outer second end of arranging the heat exchange pipeline is provided with the fourth connecting pipe, interior first end of arranging the heat exchange pipeline with still be provided with the intercommunication pipeline between the outer second end of arranging the heat exchange pipeline. The indoor heat exchanger has a flow dividing effect, so that the heat exchanging effect of the indoor heat exchanger under different modes is improved.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an indoor heat exchanger, an indoor unit and an air conditioner.
Background
The development of the home air conditioner has entered the era of high energy efficiency, miniaturization, low resource consumption, and is required to improve the efficiency of the heat exchanger and save resources. When the air conditioner is used as a condenser and an evaporator, the split-flow type requirements are different, the pressure is low, the flow speed is low, more flow paths are needed, the temperature and the pressure of the condenser are high, and the large heat exchange temperature difference and the large supercooling degree are needed.
In the current air conditioner, the flow dividing control of the refrigerant is mainly designed adaptively only for the outdoor heat exchanger, but for the indoor heat exchanger, no related design scheme exists temporarily, so that the heat exchanging effect of the indoor heat exchanger is different in different operation modes.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
In order to solve the above-mentioned at least one problem among the prior art, in order to solve indoor heat exchanger and not have the reposition of redundant personnel design and lead to the poor problem of heat transfer effect promptly, this application first aspect provides an indoor heat exchanger, indoor heat exchanger is including interior heat exchange pipeline and the outer heat exchange pipeline of arranging that is independent each other, interior heat exchange pipeline's first end is provided with first connecting pipe, interior heat exchange pipeline's second end is provided with the second connecting pipe, outer heat exchange pipeline's first end is provided with the third connecting pipe, outer heat exchange pipeline's second end is provided with the fourth connecting pipe, interior heat exchange pipeline's first end with still be provided with the intercommunication pipeline between the outer heat exchange pipeline's the second end.
In the preferred technical scheme of the indoor heat exchanger, the communicating pipe is provided with a first valve body.
In the preferable technical scheme of the indoor heat exchanger, the first valve body is an electromagnetic valve or an electronic expansion valve; or alternatively
The first valve body is a one-way valve, and the one-way valve is arranged so that the refrigerant is conducted when flowing from the first end of the inner heat exchange pipeline to the second end of the outer heat exchange pipeline.
In the preferred technical scheme of the indoor heat exchanger, the first connecting pipe is provided with a second valve body.
In the preferable technical scheme of the indoor heat exchanger, the second valve body is an electromagnetic valve or an electronic expansion valve; or alternatively
The second valve body is a one-way valve, and the one-way valve is arranged to be conducted when the refrigerant flows into the first end of the inner heat exchange pipeline.
In the preferable technical scheme of the indoor heat exchanger, the inner-row heat exchange pipeline comprises a first inner-row heat exchange pipeline section and a second inner-row heat exchange pipeline section, the first end of the first inner-row heat exchange pipeline section and the first end of the second inner-row heat exchange pipeline section are simultaneously communicated with the first connecting pipe, the second end of the first inner-row heat exchange pipeline section and the second end of the second inner-row heat exchange pipeline section are simultaneously communicated with the second connecting pipe,
the outer heat exchange pipeline comprises a first outer heat exchange pipeline section and a second outer heat exchange pipeline section, the first end of the first outer heat exchange pipeline section and the first end of the second outer heat exchange pipeline section are simultaneously communicated with the third connecting pipe, the second end of the first outer heat exchange pipeline section and the second end of the second outer heat exchange pipeline section are simultaneously communicated with the fourth connecting pipe,
the communication pipeline is provided with two, one of which is communicated between the first end of the first inner-row heat exchange pipeline section and the second end of the first outer-row heat exchange pipeline section, and the other of which is communicated between the first end of the second inner-row heat exchange pipeline section and the second end of the second outer-row heat exchange pipeline section.
In the preferred technical scheme of the indoor heat exchanger, a first three-way control valve is arranged on the first connecting pipe, a first port and a second port of the first three-way control valve are arranged on the first connecting pipe, and a third port of the first three-way control valve is communicated with the third connecting pipe.
In the preferred technical scheme of the indoor heat exchanger, a second three-way control valve is arranged on the fourth connecting pipe, a first port and a second port of the second three-way control valve are arranged on the fourth connecting pipe, and a third port of the second three-way control valve is communicated with the second connecting pipe.
In a second aspect of the present application, there is also provided an indoor unit, including an indoor heat exchanger according to any one of the first aspects.
In a third aspect of the present application, there is also provided an air conditioner including the indoor unit of the second aspect.
The indoor heat exchanger of this application is through setting up the heat exchange pipeline of arranging in independent each other and arrange the heat exchange pipeline outward to set up the intercommunication pipeline between the first end of heat exchange pipeline of arranging and the second end of heat exchange pipeline outward, can make indoor heat exchanger have the reposition of redundant personnel effect, thereby improve the heat transfer effect of indoor heat exchanger under the different modes.
Drawings
The present application is described below with reference to the accompanying drawings. In the accompanying drawings:
fig. 1 is a system diagram of an air conditioner according to a first embodiment of the present application in a cooling mode;
fig. 2 is a system diagram of an air conditioner according to a first embodiment of the present application in a heating mode;
fig. 3 is a system diagram of an air conditioner according to a second embodiment of the present application.
List of reference numerals
1. A compressor; 2. a four-way valve; 3. an outdoor heat exchanger; 4. a throttle element; 5. an indoor heat exchanger; 51. an inner heat exchange pipeline; 511. a first inner row heat exchange tube section; 512. a second inner row heat exchange tube section; 52. an outer heat exchange pipeline; 521. a first externally arranged heat exchange tube section; 522. a second externally arranged heat exchange tube section; 53. a communication pipeline; 61. a first connection pipe; 62. a second connection pipe; 63. a third connection pipe; 64. a fourth connection pipe; 71. a first valve body; 72. a second valve body; 73. a first three-way control valve; 74. and a second three-way control valve.
Detailed Description
Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. For example, while the indoor heat exchanger of the figures is described in connection with having an inner heat exchange line and an outer heat exchange line, this arrangement is not a complete matter and one skilled in the art may adapt it to a particular application. For example, one skilled in the art may increase the number of inner and/or outer heat exchange lines.
It should be noted that, in the description of the present application, terms such as "upper," "lower," "left," "right," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those skilled in the art as the case may be.
First, with reference to fig. 1 and 2, an air conditioner of the present application will be described.
As shown in fig. 1 and 2, in order to solve the problem that the heat exchange effect is poor due to the fact that the indoor heat exchanger is not in a split flow design, the application provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein the outdoor unit comprises a compressor 1, a four-way valve 2, an outdoor heat exchanger 3 and a throttling element 4, and the outdoor heat exchanger 3 is provided with an outdoor fan. The indoor unit comprises an indoor heat exchanger 5, and the indoor heat exchanger 5 is provided with an inner fan. The compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the throttling element 4 and the indoor heat exchanger 5 are connected through refrigerant pipes, and the connection mode is a conventional technology in the field and is not repeated in the application.
In particular, the indoor heat exchanger 5 of the present application comprises an inner heat exchange line 51 and an outer heat exchange line 52, which are independent from each other, a first end of the inner heat exchange line 51 being provided with a first connection pipe 61, and a second end of the inner heat exchange line 51 being provided with a second connection pipe 62. The first end of the outer heat exchange line 52 is provided with a third connection pipe 63, the second end of the outer heat exchange line 52 is provided with a fourth connection pipe 64, and a communication line 53 is further provided between the first end of the inner heat exchange line 51 and the second end of the outer heat exchange line 52.
Referring to fig. 1, in the case of the above arrangement, during a cooling operation, a refrigerant is discharged from a discharge port of the compressor 1, flows to the outdoor heat exchanger 3 through the four-way valve 2, exchanges heat with outdoor air in the outdoor heat exchanger 3, and then flows out of the outdoor heat exchanger 3. Next, the refrigerant flows into the throttling element 4, the throttling element 4 throttles the refrigerant, and the throttled refrigerant enters the inner heat exchange pipeline 51 and the outer heat exchange pipeline 52 of the indoor heat exchanger 5 through the first connecting pipe 61 and the second connecting pipe 62 respectively, and exchanges heat with indoor air. The two heat-exchanged refrigerants are discharged through the third and fourth connection pipes 63 and 64, respectively, and are converged before the four-way valve 2 and then flow to the compressor 1.
It should be noted that, the refrigerant enters the inner heat exchange pipeline 51 and the outer heat exchange pipeline 52 after passing through the first connecting pipe 61 and the second connecting pipe 62, and the indoor heat exchanger 5 is used as an evaporator in the refrigeration mode, and the temperature and the pressure of the refrigerant gradually increase from the inlet to the outlet because the indoor heat exchanger is used as an evaporator, so that the refrigerant entering the inner heat exchange pipeline 51 directly flows out to the third connecting pipe 63, and does not flow to the outlet of the outer heat exchange pipeline 52 through the communication pipeline 53, because the outlet pressure of the outer heat exchange pipeline 52 is higher than the inlet pressure of the inner heat exchange pipeline 51.
Referring to fig. 2, in the heating mode, the refrigerant is discharged from the discharge port of the compressor 1, flows to the inner heat exchange pipe 51 via the four-way valve 2, exchanges heat with indoor air, enters the outer heat exchange pipe 52 via the communication pipe 53, exchanges heat with indoor air, and is discharged to the throttle element 4. The throttling element 4 throttles the refrigerant, the throttled refrigerant enters the outdoor heat exchanger 3 to exchange heat with outdoor air, and the heat-exchanged refrigerant flows back to the compressor 1 through the four-way valve 2.
It can be seen that, according to the indoor heat exchanger 5 disclosed by the application, the inner heat exchange pipeline 51 and the outer heat exchange pipeline 52 which are independent of each other are arranged, and the communication pipeline 53 is arranged between the first end of the inner heat exchange pipeline 51 and the second end of the outer heat exchange pipeline 52, so that the indoor heat exchanger 5 has different flow distribution effects in different modes, the heat exchange effect of the indoor heat exchanger 5 in different modes is improved, and the whole energy is improved.
The air conditioner of the present application will be described in detail with further reference to fig. 1 and 2.
As shown in fig. 1 and 2, in a preferred embodiment, the indoor heat exchanger 5 includes an inner heat exchange line 51 and an outer heat exchange line 52. The first end of the inner heat exchange line 51 is provided with a first connection pipe 61 and the second end of the inner heat exchange line 51 is provided with a second connection pipe 62. The first end of the outer heat exchange tube 52 is provided with a third connection tube 63 and the second end of the outer heat exchange tube 52 is provided with a fourth connection tube 64. Preferably, the inner heat exchange line 51 includes a first inner heat exchange tube section 511 and a second inner heat exchange tube section 512, a first end of the first inner heat exchange tube section 511 and a first end of the second inner heat exchange tube section 512 are simultaneously communicated with the first connection tube 61, and a second end of the first inner heat exchange tube section 511 and a second end of the second inner heat exchange tube section 512 are simultaneously communicated with the second connection tube 62. The outer heat exchange tube 52 includes a first outer heat exchange tube segment 521 and a second outer heat exchange tube segment 522, with the first end of the first outer heat exchange tube segment 521 and the first end of the second outer heat exchange tube segment 522 simultaneously communicating with the third connection and the second end of the first outer heat exchange tube segment 521 and the second end of the second outer heat exchange tube segment 522 simultaneously communicating with the fourth connection tube 64. Accordingly, two communication lines 53 are provided, one of which is communicated between the first end of the first inner row heat exchange tube segment 511 and the second end of the first outer row heat exchange tube segment 521, and the other of which is communicated between the first end of the second inner row heat exchange tube segment 512 and the second end of the second outer row heat exchange tube segment 522.
Further, the communication pipe 53 is provided with a first valve body 71. Preferably, the first valve body 71 is a check valve that is configured to be opened when the refrigerant flows from the first end of the inner heat exchange line 51 to the second end of the outer heat exchange line 52. The first connecting pipe 61 is provided with a second valve body 72. Preferably, the second valve body 72 is a check valve configured to be opened when the refrigerant flows into the first end of the inner heat exchange line 51.
The fourth connection pipe 64 is further provided with a second three-way control valve 74, a first port (left end in fig. 1) and a second port (right end in fig. 1) of the second three-way control valve 74 are provided at the fourth connection pipe 64, and a third port (upper end in fig. 1) of the second three-way control valve 74 communicates with the second connection pipe 62.
On the premise of the above arrangement, the flow direction of the refrigerant can be controlled through the first valve body 71, the second valve body 72 and the second three-way control valve 74, so that the flow dividing effect of the indoor heat exchanger 5 is further improved, and the heat exchange efficiency is improved.
The specific operation principle of the air conditioner will be described with reference to fig. 1 and 2.
As shown in fig. 1, in the cooling mode, the first port and the second port of the second three-way control valve 74 are controlled to be communicated, and the third port is disconnected, that is, the fourth connection pipe 64 is communicated, and the fourth connection pipe 64 is blocked from the third connection pipe 63. At this time, the refrigerant discharged from the compressor 1 first enters the outdoor heat exchanger 3, exchanges heat with the outdoor air, and then flows out from the outdoor heat exchanger 3 to the throttle element 4, and the throttle element 4 throttles the refrigerant. The throttled refrigerant enters the inner heat exchange line 51 and the outer heat exchange line 52 of the indoor heat exchanger 5 through the first connection pipe 61 and the second connection pipe 62, exchanges heat with indoor air, flows out through the third connection pipe 63 and the fourth connection pipe 64, and merges before the four-way valve 2 and flows into the compressor 1. In the mode, the flow path of the refrigerant in the indoor heat exchanger 5 is two-in and two-out, so that the flow distribution is more, the pressure drop is small, and the heat exchange effect is good.
As shown in fig. 2, in the heating mode, the first port of the second three-way control valve 74 is controlled to be blocked, and the second port is communicated with the third port, that is, the fourth connection pipe 64 is blocked, and the fourth connection pipe 64 is communicated with the third connection pipe 63. At this time, the refrigerant discharged from the compressor 1 enters the third connection pipe 63 and the fourth connection pipe 64, respectively, the refrigerant in the fourth connection pipe 64 is merged with the third connection pipe 63 and then is split into two paths by one end of the inner heat exchange pipe 51 into the first inner heat exchange pipe section 511 and the second inner heat exchange pipe section 512, and after heat exchange with indoor air, the refrigerant cannot be discharged from the first connection pipe 61 due to the presence of the second check valve, but all of the refrigerant enters the first outer heat exchange pipe section 521 and the second outer heat exchange pipe section 522 through the communication pipe 53, and after heat exchange with indoor air, is merged into the second connection pipe 62 and flows to the throttling element 4. The throttling element 4 throttles the refrigerant, the throttled refrigerant enters the outdoor heat exchanger 3 to exchange heat with outdoor air, and the heat-exchanged refrigerant flows back to the compressor 1 through the four-way valve 2. In the mode, the flow path of the refrigerant in the indoor heat exchanger 5 is two-inlet and one-outlet, the heat exchanger is used as a condenser, the two-inlet and one-outlet mode has large convection heat exchange temperature difference, the supercooling degree is large, the heat exchange effect is good, and the air conditioner power is low.
It should be noted that the foregoing preferred embodiments are merely illustrative of the principles of the present application and are not intended to limit the scope of the present application. The above-mentioned setting modes can be adjusted by a person skilled in the art without departing from the principle of the present application, so that the present application can be applied to more specific application scenarios.
For example, although the above embodiment is described in connection with the first valve body 71 being provided on the communication pipe 53, the provision of the first valve body 71 is not essential, and the provision thereof may be omitted selectively by those skilled in the art. In addition, the first valve body 71 may be replaced with other valve bodies, such as a solenoid valve, an electronic expansion valve, etc., in addition to the check valve.
As another example, in another alternative embodiment, the placement of the second valve body 72 is not necessary and one skilled in the art may choose based on the particular application scenario. Furthermore, the specific form of the second valve body 72 may be selected, and may be replaced with a solenoid valve or an electronic expansion valve in addition to the check valve. Alternatively, as shown in fig. 3, the second valve body 72 may be replaced with a first three-way control valve 73, wherein a first port (left end in fig. 3) and a second port (right end in fig. 3) of the first three-way control valve 73 are provided in the first connection pipe 61, and a third port (lower end in fig. 3) of the first three-way control valve 73 communicates with the third connection pipe 63. The effect of the second valve body 72 described above can be also achieved by controlling the communication condition of the three ports of the first three-way control valve 73.
For another example, in another alternative embodiment, the placement of the second three-way valve is not necessary, and one skilled in the art may choose based on specific needs, and the second three-way valve may be replaced with other valve bodies, such as may be implemented with two separate solenoid valves.
For another example, the specific structure of the indoor heat exchanger 5 is not constant, and a person skilled in the art may adjust it, for example, the number of the inner heat exchange line 51 and the outer heat exchange line 52 may be increased.
For another example, the specific composition forms of the inner heat exchange pipeline 51 and the outer heat exchange pipeline 52 are not exclusive, and those skilled in the art can select the number of heat exchange pipe sections included in the inner heat exchange pipeline 51 and the outer heat exchange pipeline 52 based on specific application situations, and accordingly the number of communication pipelines 53 needs to be adjusted.
Of course, the alternative embodiments described above, as well as the alternative and preferred embodiments, may also be used in a cross-fit manner, thereby combining new embodiments to suit more specific application scenarios.
Those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.
Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will be within the scope of the present application.
Claims (10)
1. The utility model provides an indoor heat exchanger, its characterized in that, indoor heat exchanger includes the heat exchange pipeline of arranging in mutually independent and arranges the heat exchange pipeline outward, the first end of heat exchange pipeline of arranging in is provided with first connecting pipe, the second end of heat exchange pipeline of arranging in is provided with the second connecting pipe, the first end of heat exchange pipeline of arranging outward is provided with the third connecting pipe, the second end of heat exchange pipeline of arranging outward is provided with the fourth connecting pipe, the first end of heat exchange pipeline of arranging in with still be provided with the intercommunication pipeline between the second end of heat exchange pipeline of arranging outward.
2. The indoor heat exchanger according to claim 1, wherein the communication pipe is provided with a first valve body.
3. The indoor heat exchanger of claim 2, wherein the first valve body is a solenoid valve or an electronic expansion valve; or alternatively
The first valve body is a one-way valve, and the one-way valve is arranged so that the refrigerant is conducted when flowing from the first end of the inner heat exchange pipeline to the second end of the outer heat exchange pipeline.
4. The indoor heat exchanger according to claim 1, wherein the first connection pipe is provided with a second valve body.
5. The indoor heat exchanger according to claim 4, wherein the second valve body is a solenoid valve or an electronic expansion valve; or alternatively
The second valve body is a one-way valve, and the one-way valve is arranged to be conducted when the refrigerant flows into the first end of the inner heat exchange pipeline.
6. The indoor heat exchanger according to claim 1, wherein the inner heat exchange line comprises a first inner heat exchange tube section and a second inner heat exchange tube section, the first end of the first inner heat exchange tube section and the first end of the second inner heat exchange tube section being in simultaneous communication with the first connection tube, the second end of the first inner heat exchange tube section and the second end of the second inner heat exchange tube section being in simultaneous communication with the second connection tube,
the outer heat exchange pipeline comprises a first outer heat exchange pipeline section and a second outer heat exchange pipeline section, the first end of the first outer heat exchange pipeline section and the first end of the second outer heat exchange pipeline section are simultaneously communicated with the third connecting pipe, the second end of the first outer heat exchange pipeline section and the second end of the second outer heat exchange pipeline section are simultaneously communicated with the fourth connecting pipe,
the communication pipeline is provided with two, one of which is communicated between the first end of the first inner-row heat exchange pipeline section and the second end of the first outer-row heat exchange pipeline section, and the other of which is communicated between the first end of the second inner-row heat exchange pipeline section and the second end of the second outer-row heat exchange pipeline section.
7. The indoor heat exchanger according to claim 1, wherein a first three-way control valve is provided on the first connection pipe, a first port and a second port of the first three-way control valve are provided on the first connection pipe, and a third port of the first three-way control valve communicates with the third connection pipe.
8. The indoor heat exchanger according to claim 1, wherein a second three-way control valve is provided on the fourth connection pipe, a first port and a second port of the second three-way control valve are provided on the fourth connection pipe, and a third port of the second three-way control valve communicates with the second connection pipe.
9. An indoor unit comprising the indoor heat exchanger of any one of claims 1 to 8.
10. An air conditioner comprising the indoor unit of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322059113.6U CN220507001U (en) | 2023-08-02 | 2023-08-02 | Indoor heat exchanger, indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322059113.6U CN220507001U (en) | 2023-08-02 | 2023-08-02 | Indoor heat exchanger, indoor unit and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220507001U true CN220507001U (en) | 2024-02-20 |
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ID=89882433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322059113.6U Active CN220507001U (en) | 2023-08-02 | 2023-08-02 | Indoor heat exchanger, indoor unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220507001U (en) |
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2023
- 2023-08-02 CN CN202322059113.6U patent/CN220507001U/en active Active
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