CN218442837U - Air conditioning unit - Google Patents
Air conditioning unit Download PDFInfo
- Publication number
- CN218442837U CN218442837U CN202222073511.9U CN202222073511U CN218442837U CN 218442837 U CN218442837 U CN 218442837U CN 202222073511 U CN202222073511 U CN 202222073511U CN 218442837 U CN218442837 U CN 218442837U
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- cooling
- cooling branch
- air conditioning
- compressor
- branch road
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 183
- 239000003507 refrigerant Substances 0.000 claims abstract description 60
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 12
- 239000000498 cooling water Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000001035 drying Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to an air conditioning technology field specifically provides an air conditioning unit. The problem of current air conditioning unit's compressor cooling method not good and lead to application scope to be restricted or influence normal heat transfer is solved. Therefore, the utility model discloses an air conditioning unit includes refrigerant circulation circuit and the first cooling branch road and the second cooling branch road that link to each other with refrigerant circulation circuit, be provided with compressor on the refrigerant circulation circuit, the condenser, electronic expansion valve and evaporimeter, the one end of first cooling branch road links to each other with the condenser, the other end of first cooling branch road links to each other with the cooling port of compressor, the partly of second cooling branch road and the partly of first cooling branch road are close to the setting in order to carry out the heat transfer and consequently cool off the refrigerant in the first cooling branch road with first cooling branch road. The utility model discloses can reduce the temperature of the refrigerant in the first cooling branch road with the help of the cooling effect of second cooling branch road to reduce the temperature of the converter of compressor, guarantee its homoenergetic steady operation under any operating mode.
Description
Technical Field
The utility model relates to an air conditioning technology field specifically provides an air conditioning unit.
Background
When the existing air conditioning unit operates under the condition that both chilled water temperature and cooling water temperature are high, because the temperature of the liquid refrigerant at the outlet of the condenser is high, for example, when the cooling water temperature is 36 ℃ and the chilled water temperature is 20 ℃ during full-load operation, the temperature of the liquid refrigerant at the outlet of the condenser can reach about 52 ℃, the temperature of the refrigerant entering the compressor to cool the frequency converter is too high, and the problem of insufficient cooling of the frequency converter is caused. The temperature of the frequency converter rises all the time, and the problems of insufficient refrigeration energy, rising of the temperature of the chilled water and the like can occur until the compressor has to be forcedly unloaded to ensure the safety of the compressor, so that the normal heat exchange of the air conditioning unit is influenced.
The existing scheme for solving the problem of overhigh temperature of the frequency converter mainly comprises the following two types:
the first method is that after the temperature of the frequency converter rises to an early warning value, the compressor is controlled to carry out forced load shedding until the temperature of the frequency converter is reduced to return difference temperature, and then the compressor is controlled to normally operate; however, the repeated load increase and load decrease of the compressor inevitably causes the water temperature to fluctuate, and further influences the use experience of users. Specifically, in the control mode for realizing cooling based on control of loading and unloading of the compressor, after the temperature of the frequency converter rises to an early warning value, the compressor needs to be controlled to be forcibly unloaded to the minimum capacity, the compressor is controlled to be normally loaded after the temperature of the frequency converter is reduced to return difference temperature, the compressor needs to be kept at the minimum capacity to operate all the time before the temperature of the frequency converter is reduced to the return difference temperature, and in the process, if the temperature of the frequency converter continues to rise, the compressor needs to be controlled to stop, so that the whole air conditioning unit cannot continue to normally work. Frequent control of the loading and unloading of the compressor not only affects the normal heat exchange of the air conditioning unit, but also has adverse effects on the long-term operation reliability of the compressor.
The second method is that a refrigerant pump loop is added, and a refrigerant at the outlet of a condenser is introduced into a compressor to cool the frequency converter; however, when the cooling water temperature is high, the temperature of the liquid refrigerant at the outlet of the condenser is also high, and it is difficult to decrease the temperature of the inverter after the liquid refrigerant is introduced into the compressor and flows through the inverter. Specifically, the motor and the frequency converter of the existing compressor are usually cooled by liquid refrigerant, the liquid refrigerant is led out through an outlet of a condenser, enters an independent cooling channel inside the compressor through a filter and a liquid viewing mirror, and then controls the on-off state of a corresponding electromagnetic valve according to temperature, wherein superheated gaseous refrigerant after cooling the frequency converter returns to a medium-pressure side, and gaseous refrigerant after cooling the motor returns to a suction side. In transition season or when requiring high temperature to go out water, namely, under the operating mode of little pressure ratio, the compressor appears the condition that supplies liquid inadequately very easily, if still have certain refrigeration demand to air conditioning unit this moment, the problem that the high temperature just appears very easily in converter cooling circuit to lead to the compressor to add the deloading frequently, the problem of frequent switch machine even, so not only can influence the normal heat transfer of air conditioning unit, still can cause certain influence to the reliability of compressor long-term operation. Therefore, the cooling mode usually only works when the cooling temperature is low, but the cooling function is difficult to be realized under the working conditions that high-temperature outlet water is required and the temperature of the cooling water is high.
Accordingly, there is a need in the art for a new air conditioning unit that solves the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem, promptly, the compressor cooling method of solving current air conditioning unit is not good and leads to application scope to be restricted or influence the problem of normal heat transfer.
The utility model provides an air conditioning unit, which comprises a refrigerant circulation loop, a first cooling branch and a second cooling branch which are connected with the refrigerant circulation loop, wherein a compressor, a condenser, an electronic expansion valve and an evaporator are arranged on the refrigerant circulation loop,
one end of the first cooling branch is connected with the condenser, the other end of the first cooling branch is connected with a cooling port of the compressor,
and a part of the second cooling branch and a part of the first cooling branch are arranged close to each other so as to exchange heat with the first cooling branch and cool the refrigerant in the first cooling branch.
In a preferred technical scheme of the air conditioning unit, one end of the second cooling branch is connected with the condenser, and the other end of the second cooling branch is connected with an air supplement port of the compressor.
In a preferred embodiment of the air conditioning unit, a throttle member is provided in the second cooling branch,
the throttle member is located upstream of a portion where the second cooling branch is disposed adjacent to the first cooling branch.
In a preferred embodiment of the air conditioning unit, the throttling member is an expansion valve or an orifice plate.
In the preferable technical scheme of the air conditioning unit, the air conditioning unit further comprises a cooling heat exchanger,
and the parts of the first cooling branch and the second cooling branch which are arranged close to each other exchange heat through the cooling heat exchanger.
In the preferable technical scheme of the air conditioning unit, the cooling heat exchanger is a plate heat exchanger or a sleeve heat exchanger.
In a preferred embodiment of the above air conditioning unit, the air conditioning unit further includes a cooling main path,
one end of the first cooling branch and one end of the second cooling branch are both connected with the main cooling path and then connected with the condenser through the main cooling path.
In the preferable technical scheme of the air conditioning unit, the air conditioning unit further comprises an inlet and outlet three-way valve,
the inlet of the one-in-two-out three-way valve is connected with the outlet of the main cooling path, the first outlet of the one-in-two-out three-way valve is connected with the inlet of the first cooling branch path, and the second outlet of the one-in-two-out three-way valve is connected with the inlet of the second cooling branch path.
In a preferred technical solution of the above air conditioning unit, a switching valve is provided on the main cooling path.
In a preferred technical solution of the above air conditioning unit, the cooling main path is further provided with a filter.
Based on the technical scheme, the utility model discloses an air conditioning unit include refrigerant circulation circuit and with first cooling branch road and second cooling branch road that refrigerant circulation circuit links to each other, be provided with compressor, condenser, electronic expansion valve and evaporimeter on the refrigerant circulation circuit, the one end of first cooling branch road with the condenser links to each other, the other end of first cooling branch road with the cooling port of compressor links to each other, the second cool off the partly with the partly of first cooling branch road be close to the setting with can with first cooling branch road carries out the heat transfer and therefore cools off refrigerant in the first cooling branch road. Based on the structure setting, the utility model discloses an add the second cooling branch road comes right refrigerant in the first cooling branch road carries out cooling treatment, especially under the higher operating mode of cooling water temperature, the utility model discloses an air conditioning unit just can with the help of the cooling effect of second cooling branch road is used for reducing the temperature of refrigerant in the first cooling branch road, thereby effectively reduces the temperature of the converter of compressor, and then guarantees the compressor homoenergetic steady operation under any operating mode, and consequently guarantees air conditioning unit's stability.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 shows a schematic overall structure diagram of a preferred embodiment of the air conditioning unit of the present invention;
reference numerals are as follows:
1. a refrigerant circulation circuit; 11. a compressor; 111. a cooling port; 112. an air supplement port; 12. a condenser; 121. a condensation safety valve; 122. an exhaust pressure sensor; 123. a liquid level meter; 13. an electronic expansion valve; 14. an evaporator; 141. an evaporation safety valve; 15. drying the filter; 16. a one-way valve; 17. a butterfly valve; 18. a first ball valve; 19. a second ball valve;
2. a first cooling branch;
3. a second cooling branch; 31. a throttling member;
4. cooling the main circuit; 41. an on-off valve; 42. a filter;
5. the heat exchanger is cooled.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, the utility model discloses do not to do any restriction in air conditioning unit's concrete application place, can be domestic air conditioning unit, also can be commercial air conditioning unit, the technical staff can set for by oneself according to the in-service use demand. The change of the specific application object does not deviate from the basic principle of the present invention, and the protection scope of the present invention should belong to.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "middle", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the structure must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 invention, unless otherwise explicitly specified or limited, the terms "connected" and "communicating" are to be interpreted broadly, e.g. as a fixed connection or a detachable connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, as shown in fig. 1, the air conditioning unit of the present invention includes a refrigerant circulation loop 1, and a first cooling branch 2 and a second cooling branch 3 connected to the refrigerant circulation loop 1, wherein the refrigerant circulation loop 1 is provided with a compressor 11, a condenser 12, an electronic expansion valve 13, and an evaporator 14. It should be noted that the present invention does not limit the specific structural components of the refrigerant circulation loop 1, for example, the refrigerant circulation loop 1 may be further provided with other control elements or heat exchange elements, etc.; in addition, the present invention does not limit the specific types of the compressor 11, the condenser 12, the electronic expansion valve 13, and the evaporator 14, and those skilled in the art can set the types according to actual needs. One end of the first cooling branch 2 is connected to the condenser 12, the other end of the first cooling branch 2 is connected to the cooling port 111 of the compressor 11, and a portion of the second cooling branch 3 and a portion of the first cooling branch 2 are disposed close to each other to exchange heat with the first cooling branch 2 and thus cool the refrigerant in the first cooling branch 2.
Based on the structure setting, the utility model discloses an add second cooling branch 3 and come to carry out cooling treatment to the refrigerant in the first cooling branch 2, especially under the higher operating mode of cooling water temperature, the utility model discloses an air conditioning unit just can reduce the temperature of the refrigerant in the first cooling branch 2 with the help of the cooling effect of second cooling branch 3 to effectively reduce the temperature of compressor 11's converter, and then guarantee that compressor 11 homoenergetic steady operation under any operating mode, and consequently guarantee air conditioning unit's stability.
For the refrigerant circulation loop 1, specifically, the condenser 12 is used for exchanging heat with cooling water, and is provided with a cooling water inlet and a cooling water outlet; of course, the present invention does not limit the specific structure of the condenser 12, and those skilled in the art can set the structure according to the actual use requirement. In addition, the condenser 12 is further provided with a condensation safety valve 121, an exhaust pressure sensor 122 and a liquid level meter 123, wherein the condensation safety valve 121 is used for monitoring the internal safety of the condenser 12, the exhaust pressure sensor 122 is used for monitoring the pressure condition of the condenser 12, and the liquid level meter 123 is used for detecting the liquid level height of the refrigerant in the condenser 12. The evaporator 14 is used for exchanging heat with the chilled water and is provided with a chilled water inlet and a chilled water outlet; of course, the present invention does not limit the specific structure of the evaporator 14, and those skilled in the art can set the structure according to the actual use requirement. In addition, an evaporation safety valve 141 is provided on the evaporator 14 for monitoring the internal safety of the evaporator 14. Of course, it will be understood by those skilled in the art that other elements may be provided on the condenser 12 and the evaporator 14, which is obviously not limiting and can be set by those skilled in the art according to the actual use requirement.
Further, a drying filter 15, a one-way valve 16 and a butterfly valve 17 are further arranged on the refrigerant circulation loop 1, wherein the drying filter 15 is arranged between the condenser 12 and the electronic expansion valve 13 and is used for drying the refrigerant; the check valve 16 is disposed between the compressor 11 and the condenser 12, and is configured to ensure a flow direction of the refrigerant; a butterfly valve 17 is provided between the compressor 11 and the evaporator 14 to control a flow of the refrigerant. Of course, the dry filter 15, the check valve 16 and the butterfly valve 17 are all set for better ensuring the normal operation of the refrigerant circulation loop 1, and are not restrictive, and the technicians in the field can set themselves according to the actual use requirements, as long as the basic principle of the present invention is not changed, which belongs to the protection scope of the present invention.
In addition, the refrigerant circulation circuit 1 is further provided with a first ball valve 18 and a second ball valve 19, the first ball valve 18 is arranged between the condenser 12 and the drying filter 15, the second ball valve 19 is arranged between the electronic expansion valve 13 and the evaporator 14, and the first ball valve 18 and the second ball valve 19 jointly control the refrigerant circulation condition of the whole refrigerant circulation circuit 1 so as to be convenient for users to use.
With continued reference to fig. 1, as a preferred arrangement, one end of the second cooling branch 3 is connected to the condenser 12 and the other end of the second cooling branch 3 is connected to the air make-up port 112 of the compressor 11. Based on this kind of setting, second cooling branch 3 not only can make the refrigerant temperature in first cooling branch 2 reduce more than 10 ℃ to effectively guarantee first cooling branch 2 to the cooling effect of compressor 11, the refrigerant in second cooling branch 3 can also be led back to the middling pressure side of compressor 11 in addition, thereby plays the tonifying qi effect, and then effectively promotes compressor 11's refrigerating capacity. It should be noted that, the above-mentioned setting manner is only a preferred setting manner, and those skilled in the art can set the setting manner according to actual use requirements, as long as a part of the second cooling branch 3 and a part of the first cooling branch 2 are disposed close to each other to exchange heat with the first cooling branch 2 and thus cool the refrigerant in the first cooling branch 2; for example, it is also possible to connect one end of the second cooling branch 3 to the outlet of the electronic expansion valve 13 and the other end of the second cooling branch 3 to the inlet of the evaporator 14.
In addition, further preferably, the utility model discloses an air conditioning unit still includes cooling heat exchanger 5, and first cooling branch 2 and second cooling branch 3 are the part that is close to the setting and carry out the heat transfer through cooling heat exchanger 5. As a preferred embodiment, the cooling heat exchanger 5 only includes the casing and the heat transfer medium that is full of the inside cavity of casing, and partly of first cooling branch 2 and partly of second cooling branch 3 all set up in the casing, and first cooling branch 2 and second cooling branch 3 not only can rely on the mode heat transfer that is close to the setting like this, can also promote the heat transfer effect with the help of the heat transfer medium in the cavity. Of course, the cooling heat exchanger 5 may also directly adopt a plate heat exchanger or a double pipe heat exchanger, and the first cooling branch 2 and the second cooling branch 3 may be respectively communicated with two channels in the heat exchanger. In addition, it should be noted that the present invention does not limit the specific structure of the cooling heat exchanger 5, and those skilled in the art can set the structure according to the actual use requirement; for example, the cooling heat exchanger 5 may also be another small heat exchanger.
Further, the second cooling branch 3 is provided with a throttling member 31, and the throttling member 31 is located upstream of the portion where the second cooling branch 3 and the first cooling branch 2 are located, namely, upstream of the cooling heat exchanger 5, so as to play a role in controlling on and off of the second cooling branch 3. As a preferred control, the throttling member 31 can control the communication of the second cooling branch 3 only when needed. Of course, the present invention does not limit the control mode of the first cooling branch 2 and the second cooling branch 3, and those skilled in the art can set the control mode according to the actual use requirement. In addition, it should be noted that the present invention does not limit the specific structure of the throttling component 31, and those skilled in the art can set it according to the actual use requirement; preferably, the throttling member 31 is one of an electronic expansion valve, a thermal expansion valve and an orifice plate.
Furthermore, the utility model discloses an air conditioning unit is still including cooling main road 4, and the one end of first cooling branch road 2 and the one end of second cooling branch road 3 all link to each other with cooling main road 4 and the rethread cooling main road 4 links to each other with condenser 12. It is understood that although the main cooling path 4 is further provided in the preferred embodiment, obviously, one end of the first cooling branch 2 and one end of the second cooling branch 3 can be connected to the condenser 12 respectively, and the specific connection position is not limited. As a possible implementation manner, the air conditioning unit further includes a one-in two-out three-way valve, an inlet of the one-in two-out three-way valve is connected with an outlet of the main cooling path 4, a first outlet of the one-in two-out three-way valve is connected with an inlet of the first cooling branch 2, and a second outlet of the one-in two-out three-way valve is connected with an inlet of the second cooling branch 3. Besides, the main cooling path 4 is further provided with a switch valve 41 and a filter 42, the switch valve 41 is used for controlling the on-off state of the main cooling path 4 and further controlling the on-off state of the first cooling branch 2 and the second cooling branch 3, and the filter 42 is used for filtering the refrigerant in the main cooling path 4. Of course, this arrangement is not limiting, and those skilled in the art can set the arrangement according to actual use requirements.
Based on the above preferred structure, under the condition that the first cooling branch 2 and the second cooling branch 3 are both in operation, the refrigerant in the condenser 12 flows out through the main cooling path 4, then flows through the switch valve 41 and the filter 42 in sequence, and then is divided into two paths to flow into the first cooling branch 2 and the second cooling branch 3, wherein the refrigerant flowing into the first cooling branch 2 directly enters the cooling heat exchanger 5, while the refrigerant flowing into the second cooling branch 3 flows through the throttling component 31 and then enters the cooling heat exchanger 5, so that the refrigerant in the second cooling branch 3 can perform cooling treatment on the refrigerant in the first cooling branch 2 through the cooling heat exchanger 5, after heat exchange is performed through the cooling heat exchanger 5, the refrigerant in the first cooling branch 2 enters the compressor 11 through the cooling port 111 of the compressor 11 to realize cooling, and the refrigerant in the second cooling branch 3 enters the compressor 11 through the air supplement port 112 of the compressor 11 to realize air supplement.
So far, the technical solution of the present invention has been described with reference to the alternative embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. An air conditioning unit is characterized by comprising a refrigerant circulation loop, a first cooling branch and a second cooling branch which are connected with the refrigerant circulation loop, wherein a compressor, a condenser, an electronic expansion valve and an evaporator are arranged on the refrigerant circulation loop,
one end of the first cooling branch is connected with the condenser, the other end of the first cooling branch is connected with a cooling port of the compressor,
and a part of the second cooling branch and a part of the first cooling branch are arranged close to each other so as to exchange heat with the first cooling branch and cool the refrigerant in the first cooling branch.
2. The air conditioning assembly as set forth in claim 1 wherein one end of said second cooling branch is connected to said condenser and the other end of said second cooling branch is connected to said compressor air make-up port.
3. Air conditioning assembly according to claim 2, characterized in that a throttling member is arranged on the second cooling branch,
the throttle member is located upstream of a portion where the second cooling branch is disposed adjacent to the first cooling branch.
4. The air conditioning assembly according to claim 3, wherein the throttling member is an expansion valve or an orifice plate.
5. The air conditioning assembly of claim 2, further comprising a cooling heat exchanger,
and the parts of the first cooling branch and the second cooling branch which are arranged close to each other exchange heat through the cooling heat exchanger.
6. Air conditioning assembly according to claim 5, wherein the cooling heat exchanger is a plate heat exchanger or a double pipe heat exchanger.
7. Air conditioning assembly according to any of claims 2 to 6, characterized in that it further comprises a cooling main circuit,
one end of the first cooling branch and one end of the second cooling branch are both connected with the main cooling path and then connected with the condenser through the main cooling path.
8. The air conditioning assembly of claim 7, further comprising a one-in-two-out three-way valve,
the inlets of the one-in two-out three-way valves are connected with the outlet of the main cooling path, the first outlets of the one-in two-out three-way valves are connected with the inlet of the first cooling branch, and the second outlets of the one-in two-out three-way valves are connected with the inlet of the second cooling branch.
9. Air conditioning assembly according to claim 7, characterized in that on the main cooling circuit there is provided a switching valve.
10. The air conditioning assembly as set forth in claim 7 wherein a filter is further disposed on said cooling main path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222073511.9U CN218442837U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222073511.9U CN218442837U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit |
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| Publication Number | Publication Date |
|---|---|
| CN218442837U true CN218442837U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222073511.9U Active CN218442837U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit |
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| CN (1) | CN218442837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792838A (en) * | 2023-08-18 | 2023-09-22 | 河北森舍环保科技有限公司 | Energy-saving building cooling and heating integrated device and air conditioning method |
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2022
- 2022-08-08 CN CN202222073511.9U patent/CN218442837U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792838A (en) * | 2023-08-18 | 2023-09-22 | 河北森舍环保科技有限公司 | Energy-saving building cooling and heating integrated device and air conditioning method |
| CN116792838B (en) * | 2023-08-18 | 2023-10-20 | 河北森舍环保科技有限公司 | Energy-saving building cooling and heating integrated device and air conditioning method |
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