CN220017642U - Fixed-frequency air conditioning system and fixed-frequency air conditioner - Google Patents
Fixed-frequency air conditioning system and fixed-frequency air conditioner Download PDFInfo
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- CN220017642U CN220017642U CN202321248012.7U CN202321248012U CN220017642U CN 220017642 U CN220017642 U CN 220017642U CN 202321248012 U CN202321248012 U CN 202321248012U CN 220017642 U CN220017642 U CN 220017642U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 239000003507 refrigerant Substances 0.000 claims abstract description 73
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The utility model provides a fixed-frequency air conditioning system and a fixed-frequency air conditioner, which comprises: the refrigerant circulation loop is sequentially provided with a compressor, an indoor heat exchanger and an outdoor heat exchanger; the first bypass branch is arranged on the refrigerant circulation loop and is connected with the indoor heat exchanger in parallel, and the first bypass branch is provided with a first control valve. Through setting up the indoor heat exchanger in first judgement logical branch road and the refrigerant circulation circuit and parallelly connected, when the air conditioner is at the operation, can realize the refrigerant reposition of redundant personnel to the refrigerant in the refrigerant circulation circuit through the refrigerant circulation of the first control valve control first bypass branch road that sets up on the regulation first bypass branch road, and then reduce the number of times that the acting of fixed frequency air conditioner reaches the warm shut-down, avoid the compressor frequently to reach Wen Tingji, promote the performance of fixed frequency air conditioner.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a fixed-frequency air conditioning system and a fixed-frequency air conditioner.
Background
Along with the development of air conditioning technology, the type of air conditioner is diversified gradually along with market demand, and wherein, fixed frequency air conditioner is popular because the low cost price, however, the compressor rotational speed of fixed frequency air conditioner is only one, and the compressor frequency can not be adjusted along with indoor air conditioner adaptability, leads to fixed frequency compressor frequently to get into Wen Tingji state, reduces fixed frequency air conditioner's performance.
Disclosure of Invention
The utility model provides a fixed-frequency air conditioning system and a fixed-frequency air conditioner, which aim to solve the problem that the fixed-frequency air conditioner has low service performance due to frequent temperature-reaching shutdown of a compressor caused by inadaptability adjustment of the frequency of the compressor, and improve the service performance of the fixed-frequency air conditioner.
In a first aspect, the present utility model provides a fixed frequency air conditioning system comprising:
the refrigerant circulation loop is sequentially provided with a compressor, an indoor heat exchanger and an outdoor heat exchanger;
the first bypass branch is arranged on the refrigerant circulation loop and is connected with the indoor heat exchanger in parallel, and the first bypass branch is provided with a first control valve.
In one possible embodiment of the present utility model, a first throttling device is further disposed on the refrigerant circulation loop, the first throttling device is located between the indoor heat exchanger and the outdoor heat exchanger, a first end of the first bypass branch is disposed between the compressor and the indoor heat exchanger on the refrigerant circulation loop, and a second end of the first bypass branch is disposed between the first throttling device and the outdoor heat exchanger on the refrigerant circulation loop.
In one possible embodiment of the present utility model, the fixed-frequency air conditioning system includes a second bypass branch, the second bypass branch is disposed on the second bypass branch and is connected in parallel with the first control valve, and a second control valve and a second throttling device are disposed in the second bypass branch.
In one possible implementation manner of the utility model, the fixed-frequency air conditioning system further comprises a control device and a temperature detection device which is in communication connection with the control device, wherein the temperature detection device is arranged on the outdoor heat exchanger, and the control device is in communication connection with the first control valve and the second control valve.
In one possible embodiment of the utility model, the discharge end of the compressor is provided with a discharge pressure detection device, which is connected in communication with the control device.
In one possible embodiment of the utility model, the output of the compressor is connected to the outdoor heat exchanger and the input of the compressor is connected to the indoor heat exchanger.
In one possible embodiment of the utility model, the first throttling means comprises at least one throttling capillary.
In one possible implementation manner of the present utility model, the refrigerant circulation loop is further provided with a four-way valve, a first output end and a second output end of the four-way valve are respectively communicated with the outdoor heat exchanger and the indoor heat exchanger, an input end of the four-way valve is communicated with an output end of the compressor, and a third output end of the four-way valve is communicated with an input end of the compressor.
In a second aspect, the present utility model provides a fixed frequency air conditioner, the air conditioner comprising a fixed frequency air conditioning system as described in any one of the preceding claims.
In a third aspect, the present utility model provides a motor vehicle comprising a constant frequency air conditioning system as defined in any one of the preceding claims.
The utility model provides a fixed-frequency air conditioning system and a fixed-frequency air conditioner, wherein the fixed-frequency air conditioning system comprises: the refrigerant circulation loop is sequentially provided with a compressor, an indoor heat exchanger and an outdoor heat exchanger; the first bypass branch is arranged on the refrigerant circulation loop and is connected with the indoor heat exchanger in parallel, and the first bypass branch is provided with a first control valve. According to the scheme, the refrigerant circulation loop is arranged to be used for providing a basic refrigerant circulation channel of the fixed-frequency air conditioner, the first bypass branch is further arranged, the first judgment bypass branch is arranged in parallel with the indoor heat exchanger in the refrigerant circulation loop, when the air conditioner is in operation, the refrigerant circulation of the first bypass branch can be controlled by adjusting the first control valve arranged on the first bypass branch, the refrigerant distribution in the refrigerant circulation loop is realized, the heat exchange quantity of the indoor heat exchanger is reduced, the times of working of the fixed-frequency air conditioner reaching temperature shutdown are further reduced, the compressor is prevented from frequently reaching Wen Tingji, and the service performance of the fixed-frequency air conditioner is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of one embodiment of a fixed-frequency air conditioning system according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of another embodiment of a fixed-frequency air conditioning system according to an embodiment of the present utility model.
In the figure:
1. the refrigerant circulation loop 10, the compressor 11, the indoor heat exchanger 12, the outdoor heat exchanger 13, the first throttling device 2, the first bypass branch, 20, the first control valve 3, the second bypass branch, 30, the second control valve 31 and the second throttling device.
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 fall within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the embodiment of the present utility model, "and/or" describes the association relationship of the association object, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/", unless otherwise specified, generally indicates that the associated object is an "or" relationship.
In the present utility model, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described as "exemplary" in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the utility model. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present utility model may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the utility model with unnecessary detail. Thus, the present utility model is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
At present, the common constant-frequency air conditioner has only one rotation speed of a compressor, cannot be changed, and is stopped when the room temperature reaches the standard in the operation process of the air conditioner. The output refrigerating capacity cannot be controlled by controlling the rotation speed of the compressor like that of the variable frequency air conditioner, and the room temperature does not fluctuate too much. And the compressor also can enter a mode of frequent temperature-reaching shutdown, so that the service life of the compressor is reduced, and the service performance of the fixed-frequency air conditioner is reduced.
Therefore, the application provides a fixed frequency air conditioning system, is used for providing the basic refrigerant circulation passageway of fixed frequency air conditioner through setting up the refrigerant circulation return circuit, further sets up first bypass branch road, and sets up first judgement leads to the branch road and connects in parallel with the indoor heat exchanger in the refrigerant circulation return circuit, when the air conditioner is in the operation, can circulate through the refrigerant of the first bypass branch road of first control valve control that adjusts setting up on the first bypass branch road, realizes the refrigerant reposition of redundant personnel to the refrigerant circulation return circuit, reduces the heat exchange capacity of indoor heat exchanger, and then reduces the number of times that the acting of fixed frequency air conditioner reached the temperature and shut down, avoids the compressor frequently to reach Wen Tingji, promotes the performance of fixed frequency air conditioner.
Specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of one embodiment of a fixed-frequency air conditioning system according to an embodiment of the present utility model, and the fixed-frequency air conditioning system specifically includes:
a refrigerant circulation loop 1, wherein a compressor 10, an indoor heat exchanger 11 and an outdoor heat exchanger 12 are sequentially arranged on the refrigerant circulation loop 1;
the first bypass branch 2 is arranged on the refrigerant circulation loop 1 and is connected with the indoor heat exchanger 11 in parallel, and the first bypass branch 2 is provided with a first control valve 20.
The refrigerant circulation loop 1 is used for realizing refrigerant circulation of a fixed-frequency air conditioner, and it can be understood that the refrigerant circulation loop 1 is sequentially provided with a compressor 10, an indoor heat exchanger 11 and an outdoor heat exchanger 12, and the compressor 10, the indoor heat exchanger 11 and the outdoor heat exchanger 12 can be communicated through refrigerant pipelines.
The first bypass branch 2 is communicated with the refrigerant circulation loop 1 through a refrigerant pipeline, and the first bypass branch 2 is arranged in parallel with the indoor heat exchanger 11 to realize the split flow of the indoor heat exchanger 11 in the refrigerant circulation loop 1.
The first control valve 20 may be a directional valve, a two-way valve, a throttle valve, or the like, which is not particularly limited in the present utility model.
Specifically, in operation, the fixed-frequency air conditioning system may detect the indoor environment temperature corresponding to the indoor heat exchanger 11 and the set temperature corresponding to the fixed-frequency air conditioning system, when detecting that the temperature difference between the indoor environment temperature and the set temperature is within the preset temperature difference range, then control the first control valve 20 to open, so that the first bypass branch 2 branches the refrigerant corresponding to the indoor heat exchanger 11, reducing the heat exchange effect of the indoor heat exchanger 11, reducing the variation of the indoor temperature, avoiding the fixed-frequency air conditioner from reaching the temperature and stopping, and it may be understood that the valve opening of the first control valve 20 may be adjusted in an over-collar manner according to the temperature difference.
It is further understood that in other embodiments of the present utility model, the first control valve 20 may be controlled to open to achieve split after detecting that the fixed frequency air conditioning system has been operated for a predetermined period of time.
Further, it can be appreciated that, when the outdoor environment temperature is high, the heat dissipation area of the condenser (the outdoor heat exchanger 12) cannot be increased any more, so that the heat dissipation capacity of the compressor 10 is worse and worse, and the compressor 10 is easy to be protected from high temperature and stops operating. In this case, the first control valve 20 may be controlled to be opened to control the cooling capacity of the indoor heat exchanger 11 to be reduced, so that the refrigerant capacity is improved while the indoor temperature is ensured to be stable, the heat dissipation capacity of the compressor 10 is improved, and the shutdown protection is avoided.
Further, it can be understood that when the indoor and outdoor temperatures are low and the humidity is high, the area of the evaporator (indoor heat exchanger 11) of the indoor unit cannot be increased any more, and the operation speed of the compressor 10 cannot be reduced; when a user sets a fixed-frequency air conditioner to run at a low speed (i.e. large refrigerating capacity is not needed), the indoor unit is easy to drip water drops, commonly called condensation water drops. User complaints are easily caused. The fixed-frequency air conditioning system provided by the utility model can also control the first control valve 20 to be opened when the high indoor humidity and the low-speed running of the fixed-frequency air conditioner are detected, and can reduce the heat exchange of the indoor heat exchanger 11 by reducing the refrigerant flow of the indoor heat exchanger 11, reduce the coil temperature of the indoor heat exchanger 11 and avoid the condensation of the indoor heat exchanger 11.
Further, in one embodiment of the present utility model, the refrigerant circulation circuit 1 is further provided with a first throttling device 13, the first throttling device 13 is located between the indoor heat exchanger 11 and the outdoor heat exchanger 12, a first end of the first bypass branch 2 is located between the compressor 10 and the indoor heat exchanger 11 on the refrigerant circulation circuit 1, and a second end of the first bypass branch 2 is located between the first throttling device 13 and the outdoor heat exchanger 12 on the refrigerant circulation circuit 1.
It is to be understood that the first throttling means 13 may be a throttle valve, a throttle capillary tube, or the like, and that the pressure of the refrigerant is reduced by providing the first throttling means 13 between the indoor heat exchanger 11 and the outdoor heat exchanger 12.
It will be further appreciated that by locating the first end of the first bypass branch 2 between the compressor 10 and the indoor heat exchanger 11 on the refrigerant circulation circuit 1, and locating the second end of the first bypass branch 2 between the first throttle device 13 and the outdoor heat exchanger 12 on the refrigerant circulation circuit 1, the refrigerant pressure is raised. In other embodiments of the present utility model, the second end of the first bypass branch 2 may also be disposed between the first throttling device 13 and the indoor heat exchanger 11 on the refrigerant circulation circuit 1.
Further, in some other embodiments of the present utility model, referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of the fixed frequency air conditioning system in the embodiment of the present utility model, the first bypass branch 2 is provided with a second bypass branch 3, the second bypass branch 3 is connected in parallel with the first control valve 20, and a second control valve 30 and a second throttling device 31 are disposed in the second bypass branch 3.
It may be appreciated that the second bypass branch 3 communicates with the first bypass branch 2 through a refrigerant pipe, the second control valve 30 may be a check valve, a two-way electromagnetic valve, etc., and the second throttling device 31 may be a throttle valve, a capillary tube, etc.
Specifically, the first control valve 20 and the second control valve 30 may be opened simultaneously or only one of them may be opened, for example, in the refrigeration mode, when the outdoor environment temperature is high, only the second control valve 30 may be opened, and the heat release of the refrigerant is enhanced by the second bypass branch 3 (in this case, the second end of the first bypass branch 2 is disposed between the first throttling device 13 and the outdoor heat exchanger 12 on the refrigerant circulation circuit 1); when the outdoor ambient temperature is low, but the refrigerant temperature is low, the heat loss of the refrigerant can be reduced by simply opening the first control valve 20.
Further, in other embodiments of the present utility model, the fixed frequency air conditioning system further includes a control device, and a temperature detecting device communicatively connected to the control device, wherein the temperature detecting device is disposed on the outdoor heat exchanger 12, and the control device is communicatively connected to the first control valve 20 and the second control valve 30.
It is to be understood that the control device may be an indoor unit control board of an air conditioner or an outdoor unit control board of an air conditioner, or a processor, etc., and the temperature detecting device is used for detecting the temperature of the heat exchanger, for example, when the temperature of an inner disc of an evaporator (the indoor heat exchanger 11) of the indoor unit of the air conditioner is detected to be lower than a certain value, and after a period of time, the temperature is continued; at this time, the control board of the indoor unit gives an instruction to open the first control valve 20, so that part of refrigerant does not participate in the operation of the refrigeration system, the refrigeration capacity of the indoor unit is reduced, the evaporation temperature is increased, and the phenomenon of water blowing or water dripping of the indoor unit can be reduced or even eliminated.
Further, in other embodiments of the present utility model, the discharge end of the compressor 10 is provided with a discharge pressure detection device, which is communicatively connected to the control device.
It will be appreciated that in conventional fixed frequency air conditioners, when the outdoor side ambient temperature is high, the condensing pressure of the compressor 10 is high, and if the outside ambient temperature is kept high, and even continues to rise, the compressor 10 may be in high load operation for a long period of time until the motor inside the compressor 10 is protected from skip stop. In the constant-frequency air conditioning system, the exhaust pressure of the compressor 10 is detected by arranging the exhaust pressure detection device at the exhaust end of the compressor 10, when the exhaust pressure of the compressor 10 is detected to exceed a certain value, the indoor unit control board gives a signal to instruct the first control valve 20 to open, and part of refrigerant of the condenser (the outdoor heat exchanger 12) directly flows into the muffler (the electromagnetic valve has the throttling refrigerant function) of the compressor 10, so that the condensing pressure is reduced, and the running load of the compressor 10 is reduced.
It is understood that the exhaust pressure detecting device may be a temperature thermocouple disposed in the exhaust pipe of the compressor 10, detecting the exhaust pressure of the compressor 10, and converting the exhaust pressure of the compressor 10 into the exhaust temperature, where the exhaust pressure of the compressor 10 is high, and naturally, the exhaust temperature is also high. Exemplary may be as desired: when the discharge temperature of the compressor 10 reaches 80%, 90%, 95% of the upper limit value required by the specification of the compressor 10, the indoor unit control board gives an instruction to open 50%, 80%, 100% of the first control valve 20. The specific conditions can be set by simulation experiment analysis according to specific models.
Further, in other embodiments of the present utility model, the output of the compressor 10 is connected to the outdoor heat exchanger 12, and the input of the compressor 10 is connected to the indoor heat exchanger 11.
It is understood that the constant-frequency air conditioner may be a single-cooling air conditioner.
It will be appreciated that in other embodiments of the present utility model, a four-way valve may be further disposed on the refrigerant circulation circuit 1, and a first output end of the four-way valve is in communication with the outdoor heat exchanger 12; or; the first output end of the four-way valve is communicated with the indoor heat exchanger 11, when the first output end of the four-way valve is communicated with the outdoor heat exchanger 12, the second output end of the four-way valve is communicated with the indoor heat exchanger 11, and when the first output end of the four-way valve is communicated with the indoor heat exchanger 11, the second output end of the four-way valve is communicated with the outdoor heat exchanger 12, the input end of the four-way valve is communicated with the output end of the compressor 10, and the third output end of the four-way valve is communicated with the input end of the compressor 10, the flow direction of the refrigerant circulation loop 1 is controlled through the four-way valve, namely, the constant-frequency air conditioner is controlled to perform refrigeration or heating operation.
The embodiment of the utility model provides a fixed-frequency air conditioning system, which comprises: a refrigerant circulation loop 1, wherein a compressor 10, an indoor heat exchanger 11 and an outdoor heat exchanger 12 are sequentially arranged on the refrigerant circulation loop 1; the first bypass branch 2 is arranged on the refrigerant circulation loop 1 and is connected with the indoor heat exchanger 11 in parallel, and the first bypass branch 2 is provided with a first control valve 20. According to the scheme, the refrigerant circulation loop 1 is arranged to be used for providing a basic refrigerant circulation channel of the fixed-frequency air conditioner, the first bypass branch 2 is further arranged, the first judgment bypass branch is arranged in parallel with the indoor heat exchanger 11 in the refrigerant circulation loop 1, when the air conditioner is in operation, the first bypass branch 2 can be controlled to circulate by adjusting the first control valve 20 arranged on the first bypass branch 2, the refrigerant in the refrigerant circulation loop 1 is split, the heat exchange amount of the indoor heat exchanger 11 is reduced, the number of times of power and temperature stop of the fixed-frequency air conditioner is further reduced, the compressor 10 is prevented from frequently reaching Wen Tingji, and the service performance of the fixed-frequency air conditioner is improved.
Further, on the basis of any one of the above embodiments, the present utility model also provides a fixed-frequency air conditioner, where the fixed-frequency air conditioner includes the fixed-frequency air conditioning system in any one of the above embodiments. Specifically, it is understood that the fixed-frequency air conditioner may include an indoor unit including the indoor heat exchanger 11 and an outdoor unit including the outdoor heat exchanger 12.
Further, in one embodiment of the present utility model, the fixed-frequency air conditioner includes a temperature detecting device for detecting an indoor ambient temperature, where the temperature detecting device may be disposed at a return air inlet of the fixed-frequency air conditioner or separately disposed in a room and communicatively connected to the fixed-frequency air conditioner.
Further, in one embodiment of the present utility model, the fixed-frequency air conditioner may further be provided with a display device, which is configured to display a control result or an operation parameter of the fixed-frequency air conditioner.
The above describes a fixed-frequency air conditioning system and a fixed-frequency air conditioner provided by the embodiments of the present utility model in detail, and specific examples are applied to illustrate the principles and embodiments of the present utility model, and the above description of the embodiments is only used to help understand the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (10)
1. A constant frequency air conditioning system, comprising:
the refrigerant circulation loop is sequentially provided with a compressor, an indoor heat exchanger and an outdoor heat exchanger;
the first bypass branch is arranged on the refrigerant circulation loop and is connected with the indoor heat exchanger in parallel, and the first bypass branch is provided with a first control valve.
2. The fixed frequency air conditioning system according to claim 1, wherein a first throttle is further provided on the refrigerant circulation circuit, the first throttle being located between the indoor heat exchanger and the outdoor heat exchanger, a first end of the first bypass branch being provided between the compressor and the indoor heat exchanger on the refrigerant circulation circuit, and a second end of the first bypass branch being provided between the first throttle and the outdoor heat exchanger on the refrigerant circulation circuit.
3. The constant frequency air conditioning system according to claim 1, further comprising a second bypass branch, wherein the second bypass branch is disposed on the first bypass branch and is connected in parallel with the first control valve, and a second control valve and a second throttling device are disposed in the second bypass branch.
4. The constant frequency air conditioning system according to claim 3, further comprising a control device and a temperature detection device in communication with the control device, the temperature detection device being disposed on the outdoor heat exchanger, the control device being in communication with the first control valve and the second control valve.
5. The fixed frequency air conditioning system of claim 4, wherein a discharge end of the compressor is provided with a discharge pressure detection device, the pressure detection device being communicatively coupled to the control device.
6. The fixed frequency air conditioning system of claim 1, wherein an output of the compressor is connected to the outdoor heat exchanger and an input of the compressor is connected to the indoor heat exchanger.
7. The fixed frequency air conditioning system of claim 2 wherein the first throttling means comprises at least one throttling capillary tube.
8. The fixed frequency air conditioning system according to any of claims 1 to 7, wherein a four-way valve is further provided on the refrigerant circulation circuit, a first output end and a second output end of the four-way valve are respectively communicated with the outdoor heat exchanger and the indoor heat exchanger, an input end of the four-way valve is communicated with an output end of the compressor, and a third output end of the four-way valve is communicated with an input end of the compressor.
9. A constant frequency air conditioner, characterized in that the air conditioner comprises a constant frequency air conditioning system according to any one of claims 1-8.
10. The fixed frequency air conditioner according to claim 9, wherein the fixed frequency air conditioner comprises a temperature detection device for detecting the indoor environment temperature, and a display device is further arranged on the fixed frequency air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248012.7U CN220017642U (en) | 2023-05-22 | 2023-05-22 | Fixed-frequency air conditioning system and fixed-frequency air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248012.7U CN220017642U (en) | 2023-05-22 | 2023-05-22 | Fixed-frequency air conditioning system and fixed-frequency air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220017642U true CN220017642U (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321248012.7U Active CN220017642U (en) | 2023-05-22 | 2023-05-22 | Fixed-frequency air conditioning system and fixed-frequency air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN220017642U (en) |
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2023
- 2023-05-22 CN CN202321248012.7U patent/CN220017642U/en active Active
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