CN220229385U - Air conditioning system and heat exchanger thereof - Google Patents
Air conditioning system and heat exchanger thereof Download PDFInfo
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- CN220229385U CN220229385U CN202321975744.6U CN202321975744U CN220229385U CN 220229385 U CN220229385 U CN 220229385U CN 202321975744 U CN202321975744 U CN 202321975744U CN 220229385 U CN220229385 U CN 220229385U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 57
- 239000003507 refrigerant Substances 0.000 abstract description 50
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air conditioning system and a heat exchanger thereof, comprising: a first pipeline; one end of the first heat exchange tube group is communicated with the first pipeline; one end of the second heat exchange tube group is communicated with the first pipeline; the first electromagnetic valve is arranged between the first pipeline and one end of the second heat exchange tube group, and the other end of the second heat exchange tube group is communicated with the other end of the first heat exchange tube group; the second electromagnetic valve is communicated with the other end of the first heat exchange tube group and the other end of the second heat exchange tube group; a second pipeline communicated with one end of the second electromagnetic valve far away from the first heat exchange tube group and/or the second heat exchange tube group; and one end of the third pipeline is communicated with one end of the second electromagnetic valve, which is far away from the first heat exchange tube group and/or one end of the second heat exchange tube group, and the other end of the third pipeline is communicated between the first electromagnetic valve and one end of the second heat exchange tube group, and the third pipeline is provided with a one-way valve and a third electromagnetic valve. The utility model can solve the problem of uneven liquid separation of the gas-liquid mixed refrigerant during low-load refrigeration operation due to the loose closing of the three-way valve.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an air conditioning system and a heat exchanger thereof.
Background
When the air conditioner or the water heater operates at different operating frequencies, the optimal flow path lengths of the corresponding indoor and outdoor heat exchangers are different. If the air conditioner or the water heater runs at medium and low frequencies under the same flow path length, the flow speed is reduced, the heat transfer coefficient is reduced, and the heat exchange effect is poor; and in the high-frequency operation, the flow speed is higher, the heat transfer coefficient is high, and the heat exchange effect is better.
In the prior art, there is also a heat exchanger for changing the flow path length of a compressor in high frequency and low frequency modes, respectively, as disclosed in patent (CN 114576888A), which includes an inflow pipe, an outflow pipe, a first heat exchange pipe group, a second heat exchange pipe group, a first electromagnetic valve, and a switching valve group; one end of the first heat exchange tube group is communicated with the inflow tube through a first pipeline; one end of the second heat exchange tube group is communicated with the inflow tube through a second pipeline, and the other end of the second heat exchange tube group is communicated with the outflow tube through a third pipeline; the first electromagnetic valve is arranged on the second pipeline; the first end of the switching valve group is communicated with the outflow pipe, the second end of the switching valve group is communicated with one end of the first heat exchange pipe group, which is far away from the inflow pipe, and the third end of the switching valve group is communicated with one end of the second heat exchange pipe group, which is close to the first electromagnetic valve. The switching valve group specifically adopts a three-way valve to switch the flow path quantity, and the generated problems are as follows: on the one hand, along with the extension of the service time of the three-way valve, the problem of loose closing of the three-way valve can exist, and then partial refrigerant flows in to influence the refrigerating or heating effect; on the other hand, in the field of refrigeration equipment, the three-way valve is low in use amount and high in purchasing cost.
Disclosure of Invention
In order to solve the problems, the utility model provides an air conditioning system with simple structure and relatively low cost and a heat exchanger thereof, wherein the number/length of refrigerant flow paths can be switched by adopting a mode of combining a second electromagnetic valve, a third electromagnetic valve and a one-way valve, so that the problem of loose closing of the three-way valve can be solved, in an improved flow path, in a refrigeration low-load running state, a refrigerant enters the second heat exchange tube group through the other end of the second heat exchange tube group without passing through the first end of the second heat exchange tube group after being condensed by the first heat exchange tube group, thereby solving the problem of uneven liquid when a gas-liquid mixed refrigerant at an outlet of the first heat exchange tube group enters the second heat exchange tube group, and improving the refrigeration or heating effect of the air conditioning system.
The utility model provides a heat exchanger of an air conditioning system, comprising:
a first pipeline;
one end of the first heat exchange tube group is communicated with the first pipeline;
one end of the second heat exchange tube group is communicated with the first pipeline, and the other end of the second heat exchange tube group is communicated with the other end of the first heat exchange tube group;
the first electromagnetic valve is arranged between the first pipeline and one end of the second heat exchange tube group;
the second electromagnetic valve is communicated between the other end of the first heat exchange tube group and the other end of the second heat exchange tube group;
a second pipeline communicated with one end of the second electromagnetic valve far away from the first heat exchange tube group and/or the second heat exchange tube group;
and one end of the third pipeline is communicated with one end of the second electromagnetic valve far away from the first heat exchange tube group and/or one end of the second heat exchange tube group, the other end of the third pipeline is communicated between the first electromagnetic valve and one end of the second heat exchange tube group, and the third pipeline is provided with a one-way valve and a third electromagnetic valve.
According to this technical scheme, compare and adopt the three-way valve to carry out the switching of refrigerant flow path quantity/length, this application technical scheme adopts the form that second solenoid valve, third solenoid valve and check valve combined together to switch, and simple structure, required components and parts quantity is less, on guaranteeing the basis that refrigerant flow path quantity switched, can overcome the problem that the three-way valve closes not tightly. Through the improvement, the other end of the first heat exchange tube group is communicated with the other end of the second heat exchange tube group, so that under a refrigeration low-load running state, a refrigerant does not pass through one end (one end directly communicated with the compressor) of the second heat exchange tube group after being condensed by the first heat exchange tube group and enters the second heat exchange tube group through the other end of the second heat exchange tube group, the problem that one end, close to the compressor, of the first heat exchange tube group is uneven in liquid separation of a gas-liquid mixed refrigerant is solved, and the refrigeration or heating effect of an air conditioning system is improved. In addition, the electromagnetic valve and the one-way valve are common parts of the air conditioning system, so that the consumption is large, the cost is low, and the manufacturing cost of the air conditioning system is saved.
In an alternative technical scheme of the utility model, at least two first heat exchange tube groups are arranged in parallel.
According to the technical scheme, the plurality of first heat exchange tube groups are arranged, so that the length and the number of flow paths in the heat exchanger can be increased, the refrigerant circulation efficiency is improved, and the performance of an air conditioning system is improved.
In an optional technical scheme of the utility model, the utility model further comprises a first gas collecting tube and a first flow divider;
the first gas collecting tube is communicated between one end of at least two first heat exchange tube groups and the first pipeline, and the first flow divider is communicated between the second electromagnetic valve and the other ends of at least two first heat exchange tube groups.
According to the technical scheme, the arrangement of the first gas collecting tube can realize the diversion and the confluence of the refrigerants at the two sides of the first gas collecting tube, and the arrangement of the first diverter can realize the diversion and the confluence of the refrigerants at the two sides of the first diverter, so that the distribution of the refrigerant flow is facilitated when the air conditioning system operates in different modes or operates under different loads in the same operation mode, and the flexibility and the adaptability of the air conditioning system are improved.
In an alternative technical scheme of the utility model, at least two second heat exchange tube groups are arranged in parallel.
According to the technical scheme, the plurality of second heat exchange tube groups can prolong the length of the refrigerant flow paths or increase the number of the refrigerant flow paths according to the requirements, so that the heat transfer coefficient or the refrigerant circulation efficiency is improved, and the performance of an air conditioning system is improved.
In an optional technical scheme of the utility model, the utility model further comprises a second gas collecting tube and a second current divider; the second gas collecting tube is communicated between one end of at least two second heat exchange tube groups and the second pipeline, and the second flow divider is communicated between the second electromagnetic valve and the other ends of at least two second heat exchange tube groups.
According to the technical scheme, the arrangement of the second gas collecting tube can realize the flow distribution and the flow converging of the refrigerants at two sides of the second gas collecting tube, and the arrangement of the second flow divider can realize the flow distribution and the flow converging of the refrigerants at two sides of the second flow divider, so that the air conditioning system is beneficial to the distribution of the refrigerant flow when running in different modes or under different loads in the same running mode, and the flexibility, the adaptability and the refrigerating/heating effect of the air conditioning system are improved.
In an alternative technical scheme of the utility model, the electromagnetic valve further comprises a controller which is in communication connection with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve; the controller is configured to:
when the air conditioning system operates in a first load state, the first electromagnetic valve and the second electromagnetic valve are controlled to be opened, and the third electromagnetic valve is controlled to be closed; when the air conditioning system operates in the second load state, the first electromagnetic valve and the second electromagnetic valve are controlled to be closed, and the third electromagnetic valve is controlled to be opened.
According to the technical scheme, the air conditioning system operates under different loads, the opening/closing states of the electromagnetic valve are different, so that the lengths of the refrigerant flow paths are different, the air conditioning system can be in a better operation state under different loads, namely, the flow and the flow velocity of the refrigerant in the heat exchange tube group and the heat transfer coefficient of the heat exchange tube group are matched with the corresponding loads, the heat exchange tube group has a better heat exchange effect, and the refrigerating/heating performance of the air conditioning system is improved.
In an alternative technical scheme of the utility model, the first heat exchange tube group and the second heat exchange tube group are fin heat exchangers.
In another aspect, the utility model provides an air conditioning system, comprising the heat exchanger of the air conditioning system.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system according to an embodiment of the present utility model.
Reference numerals:
a first pipeline 1; a first heat exchange tube group 2; a first header 21; a first shunt 22; a second heat exchange tube group 3; a second gas collecting tube 31; a second flow divider 32; a first solenoid valve 4; a second electromagnetic valve 5; a second pipeline 6; a compressor 61; a four-way valve 62; a throttle element 63; a third heat exchanger 64; a gas-liquid separator 65; a third line 7; a check valve 71; a third solenoid valve 72.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the present utility model provides an air conditioning system, which comprises a first pipeline 1, a first heat exchange tube group 2, a second heat exchange tube group 3, a first electromagnetic valve 4, a second electromagnetic valve 5, a second pipeline 6 and a third pipeline 7, and further comprises a compressor 61, a four-way valve 62, a throttling element 63, a third heat exchanger 64 and a gas-liquid separator 65. Specifically, one end of the first heat exchange tube group 2 communicates with the first tube 1; one end of the second heat exchange tube group 3 is communicated with the first pipeline 1, and the other end of the second heat exchange tube group is communicated with the other end of the first heat exchange tube group; the first electromagnetic valve 4 is arranged between the first pipeline 1 and one end of the second heat exchange tube group 3; the second electromagnetic valve 5 is communicated between the other end of the first heat exchange tube group 2 and the other end of the second heat exchange tube group 3; the second pipeline 6 is communicated with one end of the second electromagnetic valve 5, which is far away from the first heat exchange tube group 2 and/or the second heat exchange tube group 3; one end of the third pipeline 7 is communicated with one end of the second electromagnetic valve 5 away from the first heat exchange tube group 2 and/or one end of the second heat exchange tube group 3, the other end of the third pipeline 7 is communicated between the first electromagnetic valve 4 and one end of the second heat exchange tube group 3, and the third pipeline 7 is provided with a one-way valve 71 and a third electromagnetic valve 72.
In this embodiment, compared with the switching of the number/length of the refrigerant flow paths by using the three-way valve, the present application adopts the second electromagnetic valve 5 and the third electromagnetic valve 72 (which do not involve flow adjustment, only open and close functions, and can be closed when closed) to switch in a mode of combining the one-way valve 71 (controlling the one-way flow of the refrigerant), so that the three-way valve has a simple structure, requires fewer components (only one second electromagnetic valve 5 is required to control the inflow or outflow of the refrigerant in the first heat exchange tube group 2 and the second heat exchange tube group 3 when in high-load operation), and can overcome the problem of loose closing of the three-way valve on the basis of guaranteeing the switching of the number of the refrigerant flow paths. Through the improvement, the other end of the first heat exchange tube group 2 is communicated with the other end of the second heat exchange tube group 3, so that in a refrigeration state, a refrigerant is condensed by the first heat exchange tube group 2 and then does not pass through one end of the second heat exchange tube group 3 (one end which is directly communicated with the compressor 61), when in refrigeration high-load operation, a gas collecting tube with lower cost is generally adopted to split the gaseous refrigerant at the outlet of the compressor 61 for an air inlet end, but the gas collecting tube cannot realize uniform splitting of the gas-liquid mixed refrigerant) and enters the second heat exchange tube group 3 through the other end (one end far away from the compressor 61/the gas collecting tube) of the second heat exchange tube group 3, and the problem that one end, close to the compressor 61, of the second heat exchange tube group 3 is uneven in liquid splitting of the gas-liquid mixed refrigerant is solved, and the refrigeration or heating effect of the air conditioning system is improved. In addition, the electromagnetic valve and the one-way valve are common parts of the air conditioning system, so that the consumption is large, the cost is low, and the manufacturing cost of the air conditioning system is saved.
In a preferred embodiment of the present utility model, the first heat exchange tube group 2 is provided with at least two, at least two first heat exchange tube groups 2 are provided in parallel.
By the mode, the plurality of first heat exchange tube groups 2 can increase the flow path length and the flow path quantity in the heat exchanger, so that the refrigerant circulation efficiency is improved, and the performance of an air conditioning system is improved.
In the preferred embodiment of the utility model, the heat exchange tube further comprises a first gas collecting tube 21 and a first flow divider 22, wherein the first gas collecting tube 21 comprises a gas collecting tube body and at least 3 communication ports arranged on the gas collecting tube body, one communication port is communicated with the first pipeline 1, and the other two communication ports are respectively communicated with one ends of the two first heat exchange tube groups 2; the first header 21 is communicated between one end of the at least two first heat exchange tube groups 2 and the first piping 1, and the first flow divider 22 is communicated between the second electromagnetic valve 5 and the other end of the at least two first heat exchange tube groups 2.
Through the above mode, the arrangement of the first gas collecting tube 21 can realize the diversion and the confluence of the refrigerants at two sides of the first gas collecting tube 21, the arrangement of the first diverter 22 can realize the diversion and the confluence of the refrigerants at two sides of the first diverter 22, and the second diverter 32 can realize the uniform liquid separation of the gas-liquid mixed refrigerants, so that the distribution of the refrigerant flow is facilitated when the air conditioning system operates in different modes or when the air conditioning system operates under different loads in the same operation mode, and the flexibility, the adaptability and the refrigerating/heating effect of the air conditioning system are improved.
In a preferred embodiment of the present utility model, the second heat exchange tube group 3 is provided with at least two, and at least two second heat exchange tube groups 3 are provided in parallel.
By the mode, the plurality of second heat exchange tube groups 3 can prolong the length of the refrigerant flow paths or increase the number of the refrigerant flow paths according to the needs, so that the heat transfer coefficient or the refrigerant circulation efficiency is improved, and the performance of an air conditioning system is improved.
In the preferred embodiment of the utility model, the utility model further comprises a second gas collecting tube 31 and a second flow divider 32, wherein the second gas collecting tube 31 comprises a gas collecting tube body and at least 3 communication ports arranged on the gas collecting tube body, one communication port is communicated with the first pipeline 1, the other two communication ports are respectively communicated with one ends of the two second heat exchange tube groups 3, the second gas collecting tube 31 is communicated between one ends of the at least two second heat exchange tube groups 3 and the second pipeline 6, and the second flow divider is communicated between the second electromagnetic valve 5 and the other ends of the at least two second heat exchange tube groups 3.
Through the above mode, the arrangement of the second gas collecting tube 31 can realize the flow distribution and the flow combination of the refrigerants at two sides of the second gas collecting tube 31, the arrangement of the second flow divider 32 can realize the flow distribution and the flow combination of the refrigerants at two sides of the second flow divider 32, and the second flow divider 32 can realize the uniform liquid distribution of the gas-liquid mixed refrigerants, so that the air conditioning system is beneficial to the distribution of the refrigerant flow when running in different modes or the air conditioning system runs under different loads in the same running mode, and the flexibility, the adaptability and the refrigerating/heating effect of the air conditioning system are improved.
In a preferred embodiment of the present utility model, the present utility model further comprises a controller (not shown in the figure) in communication with the first solenoid valve 4, the second solenoid valve 5 and the third solenoid valve; the controller is configured to:
when the air conditioning system operates in a first load state, the first electromagnetic valve 4 and the second electromagnetic valve 5 are controlled to be opened, and the third electromagnetic valve 72 is controlled to be closed; when the air conditioning system is operated in the second load state, the first electromagnetic valve 4 and the second electromagnetic valve 5 are controlled to be closed, and the third electromagnetic valve is controlled to be opened.
By the mode, the operation is carried out under different loads, the opening/closing states of the electromagnetic valve are different, so that the lengths of the refrigerant flow paths are different, the air conditioning system can be in a better operation state under different loads, namely, the flow rate and the flow velocity of the refrigerant in the heat exchange tube group and the heat transfer coefficient of the heat exchange tube group are matched with the corresponding loads, the heat exchange tube group has a better heat exchange effect, and the refrigerating/heating performance of the air conditioning system is improved.
In the preferred embodiment of the present utility model, the controller is a main control board of an air conditioning system, such as a PCB circuit board, and the valve elements of the first electronic valve 4, the second electronic valve 5, the third electronic valve 6 and the like are connected with the main control board in a communication manner, so as to automatically control the opening/closing of the first electronic valve 4, the second electronic valve 5, and the third electronic valve 6, which is a common application form in the art and will not be described herein.
In a preferred embodiment of the present utility model, the first heat exchange tube group 2 and the second heat exchange tube group 3 are both fin heat exchangers. Further, the first heat exchange tube group 2 and the second heat exchange tube group 3 are different heat exchange pipelines in the same heat exchanger, and the adaptability of the heat exchanger can be improved by arranging a plurality of heat exchange tube groups in one heat exchanger, so that the operation requirements under different loads can be met.
In another aspect, the utility model provides an air conditioning system, comprising the heat exchanger of the air conditioning system.
In a preferred embodiment of the present utility model, the air conditioning system further includes a compressor 61, a four-way valve 62, a throttling element 63, a third heat exchanger 64, and a gas-liquid separator 65, and the connection forms thereof are shown in fig. 1, and are common application forms in the art, and will not be described herein.
The structure of the air conditioning system and the heat exchanger according to the embodiment of the present utility model is specifically described above, and the refrigerant flow direction will be described below by taking the cooling mode as an example.
In the first load state, the frequency of the compressor of the air conditioning system is higher than a specified threshold, the compressor is in high-frequency operation, the flow rate in the corresponding heat exchanger is larger, the heat transfer coefficient is higher, and the heat exchange quantity is improved by increasing the number of flow paths. The first electromagnetic valve 4 and the second electromagnetic valve 5 are opened, the third electromagnetic valve 72 is closed, the high-temperature and high-pressure gas refrigerant at the outlet of the compressor 61 is supplied to the first heat exchange tube group 2 through the first gas collecting pipe 21, the second high-temperature and high-pressure gas is supplied to the second heat exchange tube group 3 through the second electromagnetic valve 5 and the second gas collecting pipe 31, is condensed into high-pressure medium-temperature liquid in the first heat exchange tube group 2 and the second heat exchange tube group 3, flows out of the first heat exchange tube group 2 and the second heat exchange tube group 3, and sequentially flows back to the compressor 61 through the second electromagnetic valve 5, the throttling element 63, the third heat exchanger 64 and the gas-liquid separator 65.
In the second load state, the compressor frequency is lower than the prescribed threshold value, if the same flow path is adopted as in the first load state, the flow rate of the refrigerant is reduced, the flow velocity is reduced, and the heat transfer coefficient is reduced; the first electromagnetic valve 4 and the second electromagnetic valve 5 are closed, the third electromagnetic valve is opened, the high-temperature and high-pressure gas refrigerant at the outlet of the compressor 61 sequentially passes through the first gas collecting tube 21, the first heat exchange tube group 2, the first flow divider 22, the second flow divider 32, the second heat exchange tube group 3, the second gas collecting tube 31, the third electromagnetic valve 72, the one-way valve 71, the throttling element 63, the third heat exchanger 64 and the gas-liquid separator 65 to return to the compressor 61, under the condition that the refrigerant quantity is certain, the flow path quantity is only one, the flow speed is improved to be 2 times of the original flow speed, the heat transfer coefficient of the heat exchange tube group is increased, the flow path length is prolonged, and the heat exchange quantity is improved.
In the heating state, the flow direction of the refrigerant is opposite to the flow direction of the refrigerant in the refrigerating state, and the description is omitted.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. A heat exchanger for an air conditioning system, comprising:
a first pipeline;
a first heat exchange tube group, one end of which is communicated with the first pipeline;
one end of the second heat exchange tube group is communicated with the first pipeline, and the other end of the second heat exchange tube group is communicated with the other end of the first heat exchange tube group;
the first electromagnetic valve is arranged between the first pipeline and one end of the second heat exchange tube group;
the second electromagnetic valve is communicated between the other end of the first heat exchange tube group and the other end of the second heat exchange tube group;
a second pipeline communicated with one end of the second electromagnetic valve far away from the first heat exchange tube group and/or the second heat exchange tube group;
and one end of the third pipeline is communicated with one end of the second electromagnetic valve far away from the first heat exchange tube group and/or one end of the second heat exchange tube group, the other end of the third pipeline is communicated between the first electromagnetic valve and one end of the second heat exchange tube group, and the third pipeline is provided with a one-way valve and a third electromagnetic valve.
2. An air conditioning system heat exchanger according to claim 1, wherein the first heat exchange tube group is provided with at least two, at least two first heat exchange tube groups being provided in parallel.
3. The heat exchanger of an air conditioning system according to claim 1, further comprising a first header and a first diverter;
the first gas collecting tube is communicated between one ends of at least two first heat exchange tube groups and the first pipeline, and the first flow divider is communicated between the second electromagnetic valve and the other ends of at least two first heat exchange tube groups.
4. An air conditioning system heat exchanger according to claim 1, wherein the second heat exchange tube group is provided with at least two, at least two second heat exchange tube groups being provided in parallel.
5. The heat exchanger of an air conditioning system according to claim 4, further comprising a second header and a second diverter;
the second gas collecting tube is communicated between one end of at least two second heat exchange tube groups and the second pipeline, and the second flow divider is communicated between the second electromagnetic valve and the other end of at least two second heat exchange tube groups.
6. The heat exchanger of an air conditioning system according to any of claims 1 to 5, further comprising a controller in communicative connection with the first, second and third solenoid valves; the controller is configured to:
when the air conditioning system operates in a first load state, the first electromagnetic valve and the second electromagnetic valve are controlled to be opened, and the third electromagnetic valve is controlled to be closed; and when the air conditioning system operates in a second load state, the first electromagnetic valve and the second electromagnetic valve are controlled to be closed, and the third electromagnetic valve is controlled to be opened.
7. An air conditioning system heat exchanger as recited in claim 6 wherein said first heat exchange tube bank and said second heat exchange tube bank are both fin heat exchangers.
8. An air conditioning system comprising the heat exchanger of the air conditioning system of any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975744.6U CN220229385U (en) | 2023-07-25 | 2023-07-25 | Air conditioning system and heat exchanger thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975744.6U CN220229385U (en) | 2023-07-25 | 2023-07-25 | Air conditioning system and heat exchanger thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220229385U true CN220229385U (en) | 2023-12-22 |
Family
ID=89183356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321975744.6U Active CN220229385U (en) | 2023-07-25 | 2023-07-25 | Air conditioning system and heat exchanger thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220229385U (en) |
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2023
- 2023-07-25 CN CN202321975744.6U patent/CN220229385U/en active Active
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