CN211119712U - Split type air conditioner defrosting device - Google Patents
Split type air conditioner defrosting device Download PDFInfo
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- CN211119712U CN211119712U CN201921908323.5U CN201921908323U CN211119712U CN 211119712 U CN211119712 U CN 211119712U CN 201921908323 U CN201921908323 U CN 201921908323U CN 211119712 U CN211119712 U CN 211119712U
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- evaporator
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Abstract
A split type air conditioner defrosting device comprises an outdoor unit assembly and an indoor unit assembly, wherein the indoor unit assembly comprises an evaporator, the outdoor unit assembly comprises a compressor, a condenser and an auxiliary condenser, one end of the evaporator is connected with the auxiliary condenser, a high-pressure stop valve and a first regulating valve are connected between the evaporator and the auxiliary condenser, one end of the auxiliary condenser is connected with the first regulating valve, the other end of the auxiliary condenser is connected with a second regulating valve, the second regulating valve is connected with the condenser, and the condenser is connected with the compressor; the evaporator is connected with the compressor, and a low-pressure stop valve is connected between the evaporator and the compressor; the defrosting device of the split air conditioner also comprises an outdoor unit fan, the outdoor unit fan is provided with an air outlet and an air inlet, the air outlet of the outdoor unit fan is communicated with the auxiliary condenser, and the air inlet of the outdoor unit fan is communicated with the outside air. In the defrosting process, heating can be carried out, and the amplitude of indoor temperature reduction is reduced. In the whole heating process, the compressor can be operated all the time, so that the energy-saving effect is achieved.
Description
Technical Field
The utility model relates to a split type air conditioner defrosting device.
Background
Air conditioners are air conditioners. The method is a process of adjusting and controlling parameters such as temperature, humidity, cleanliness, speed and the like of indoor ambient air by manual means. In the defrosting mode of the split air conditioner, the condenser can generate a frosting phenomenon when the air conditioner operates in a heating state, and the heating effect is reduced. When defrosting is needed, the compressor, the indoor fan, the outdoor fan and the four-way valve are sequentially stopped, then the compressor is started, high-temperature refrigerant is condensed, the surface temperature of the condenser is increased, the defrosting function is realized, after a frost layer on the surface of the condenser is melted, the compressor is stopped, then the four-way valve, the compressor, the outdoor fan and the indoor fan are sequentially started, and the heating state is re-started, so that the defrosting purpose is achieved. In the heating state and the defrosting state, the compressor is in an alternate state of starting and stopping, and the energy loss is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an improve split air conditioner refrigerating system flow path, solve traditional split air conditioner and change the split air conditioner that the white in-process stopped heating, indoor temperature descends, the high problem of energy consumption and change the white device to overcome the weak point among the prior art.
The defrosting device of the split air conditioner comprises an outdoor unit assembly and an indoor unit assembly, wherein the indoor unit assembly comprises an evaporator, the outdoor unit assembly comprises a compressor, a condenser and an auxiliary condenser, one end of the evaporator is connected with the auxiliary condenser, a high-pressure stop valve and a first regulating valve are connected between the evaporator and the auxiliary condenser, one end of the auxiliary condenser is connected with the first regulating valve, the other end of the auxiliary condenser is connected with a second regulating valve, the second regulating valve is connected with the condenser, and the condenser is connected with the compressor; the evaporator is connected with the compressor, and a low-pressure stop valve is connected between the evaporator and the compressor; in a defrosting or heating state, a refrigerant is compressed by a compressor, the refrigerant flows to a low-pressure stop valve, an evaporator, a high-pressure stop valve, a first regulating valve, an auxiliary condenser, a second regulating valve and a condenser in sequence, and the refrigerant enters the condenser, is evaporated, absorbs heat and then flows back to the compressor.
By adding the auxiliary condenser to the outdoor unit assembly, in a defrosting state, the refrigerant is compressed by the compressor, enters the evaporator without throttling by the first regulating valve, directly enters the auxiliary condenser, is throttled by the second regulating valve, enters the condenser after being throttled, absorbs heat by evaporation, and then flows back to the compressor.
The defrosting device of the split air conditioner also comprises an outdoor unit fan, the outdoor unit fan is provided with an air outlet and an air inlet, the air outlet of the outdoor unit fan is communicated with the auxiliary condenser, and the air inlet of the outdoor unit fan is communicated with the outside air. The outdoor fan sucks outdoor air through the auxiliary condenser to raise the temperature of the air, and blows the air to the condenser, and the air is heated to a temperature capable of melting frost layers of the condenser through the auxiliary condenser. The defrosting mode can ensure that the indoor temperature can not be changed greatly in the defrosting process and heating is carried out. The compressor can be stopped for a period of time without being started for a period of time in the defrosting process, and the energy-saving effect is achieved.
The auxiliary condenser is at least a fin type or pipe belt type heat exchanger, and more than one auxiliary condenser is arranged.
The first regulating valve is at least a capillary tube, a thermal expansion valve or an electronic expansion valve; the first regulating valve is provided with more than one.
The second regulating valve is at least a capillary tube, a thermostatic expansion valve or an electronic expansion valve; more than one second regulating valve is arranged.
The defrosting device of the split air conditioner also comprises a low-pressure connecting pipe, and the compressor, the low-pressure stop valve and the condenser are sequentially connected through the low-pressure connecting pipe.
The defrosting device of the split air conditioner further comprises a high-pressure connecting pipe, and the evaporator, the high-pressure stop valve, the first regulating valve and the auxiliary condenser are sequentially connected through the high-pressure connecting pipe.
The utility model discloses a change the frost mode, can also heat at the frost in-process that changes, reduce the range that indoor side temperature drops. In the whole heating process, the compressor can be operated all the time, so that the energy-saving effect is achieved, and the comfort of the air conditioner to a human body is improved.
Drawings
Fig. 1 is a schematic view of a connection structure of a defrosting device of a split air conditioner according to an embodiment of the present invention.
In the figure, 1 is a compressor, 2 is a condenser, 3 is an evaporator, 4 is an auxiliary condenser, 5 is a high-pressure stop valve, 6 is a first regulating valve, 7 is a second regulating valve, 8 is a low-pressure stop valve, 9 is a low-pressure connecting pipe, 10 is a high-pressure connecting pipe, and 11 is an outdoor unit fan.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1, a split air conditioner defrosting device comprises an outdoor unit assembly and an indoor unit assembly, wherein the indoor unit assembly comprises an evaporator 3, the outdoor unit assembly comprises a compressor 1, a condenser 2 and an auxiliary condenser 4, one end of the evaporator 3 is connected with the auxiliary condenser 4, a high-pressure stop valve 5 and a first regulating valve 6 are connected between the evaporator and the auxiliary condenser, one end of the auxiliary condenser 4 is connected with the first regulating valve 6, the other end of the auxiliary condenser 4 is connected with a second regulating valve 7, the second regulating valve 7 is connected with the condenser 2, and the condenser 2 is connected with the compressor 1; the evaporator 3 is connected with the compressor 1, and a low-pressure stop valve 8 is connected between the evaporator 3 and the compressor 1; in a defrosting or heating state, a refrigerant is compressed by a compressor 1, the refrigerant flows to a low-pressure stop valve 8, an evaporator 3, a high-pressure stop valve 5, a first regulating valve 6, an auxiliary condenser 4, a second regulating valve 7 and a condenser 2 in sequence, and the refrigerant enters the condenser 2, is evaporated and absorbs heat and then flows back to the compressor 1; the defrosting device of the split air conditioner also comprises an outdoor unit fan 11, the outdoor unit fan 11 is provided with an air outlet and an air inlet, the air outlet of the outdoor unit fan 11 is communicated with the auxiliary condenser 4, and the air inlet of the outdoor unit fan 11 is communicated with the outside air.
By adding the auxiliary condenser 4 in the outdoor unit assembly, in a defrosting state, the refrigerant is compressed by the compressor 1, enters the evaporator 3 without throttling by the first regulating valve 6, directly enters the auxiliary condenser 4, is throttled by the second regulating valve 7, enters the condenser 2 after throttling, absorbs heat through evaporation, and then flows back to the compressor 1.
The outdoor fan 11 sucks outdoor air through the auxiliary condenser 4 to raise the temperature of the air, and blows the air toward the condenser 2 to heat the air through the auxiliary condenser 4 to a temperature at which frost layers of the condenser 2 are melted. The defrosting mode can ensure that the indoor temperature can not be changed greatly in the defrosting process and heating is carried out. The compressor 1 can be stopped for a period of time without being started for a period of time in the defrosting process, and the energy-saving effect is achieved.
The auxiliary condenser 4 is at least a fin type or pipe belt type heat exchanger, and more than one auxiliary condenser 4 is arranged.
The first regulating valve 6 is at least a capillary tube, a thermal expansion valve or an electronic expansion valve; more than one first regulating valve 6 is arranged.
The second regulating valve 7 is at least a capillary tube, a thermal expansion valve or an electronic expansion valve; more than one second regulating valve 7 is arranged.
The defrosting device of the split air conditioner further comprises a low-pressure connecting pipe 9, and the compressor 1, the low-pressure stop valve 8 and the condenser 2 are sequentially connected through the low-pressure connecting pipe 9.
The defrosting device of the split air conditioner further comprises a high-pressure connecting pipe 10, and the evaporator 3, the high-pressure stop valve 5, the first regulating valve 6 and the auxiliary condenser 4 are sequentially connected through the high-pressure connecting pipe 10.
The defrosting device of the split air conditioner also comprises an outdoor unit fan 11, the outdoor unit fan 11 is provided with an air outlet and an air inlet, the air outlet of the outdoor unit fan 11 is communicated with the auxiliary condenser 4, and the air inlet of the outdoor unit fan 11 is communicated with the outside air.
Specifically;
in the defrosting process, a refrigerant is compressed by the compressor 1, enters the evaporator 3 without throttling by the first regulating valve 6, directly enters the auxiliary condenser 4, is throttled by the second regulating valve 7, enters the condenser 2 after being throttled, absorbs heat by evaporation, and then returns to the compressor 1. The outdoor fan 11 sucks outdoor air through the auxiliary condenser 4 to raise the temperature of the air, and blows the air toward the condenser 2 to heat the air through the auxiliary condenser 4 to a temperature at which frost layers of the condenser 2 are melted.
In the heating process, a refrigerant is compressed by the compressor 1, enters the evaporator 3, is throttled by the first regulating valve 6, directly enters the auxiliary condenser 4 after being throttled, is evaporated to absorb heat, passes through the second regulating valve 7, is not throttled by the second regulating valve 7, directly enters the condenser 2, is evaporated to absorb heat, and then flows back to the compressor 1. The outdoor fan 11 sucks the air outside the room through the auxiliary condenser 4 to evaporate and absorb heat, and then blows the air to the condenser 2, so that the air is further evaporated and absorbed heat through the condenser 2, and the operation energy efficiency of the split air conditioner is improved.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A split type air conditioner defrosting device comprises an outdoor unit assembly and an indoor unit assembly, wherein the indoor unit assembly comprises an evaporator (3), and the split type air conditioner defrosting device is characterized in that the outdoor unit assembly comprises a compressor (1), a condenser (2) and an auxiliary condenser (4), one end of the evaporator (3) is connected with the auxiliary condenser (4), a high-pressure stop valve (5) and a first regulating valve (6) are connected between the evaporator and the auxiliary condenser, one end of the auxiliary condenser (4) is connected with the first regulating valve (6), the other end of the auxiliary condenser (4) is connected with a second regulating valve (7), the second regulating valve (7) is connected with the condenser (2), and the condenser (2) is connected with the compressor (1; the evaporator (3) is connected with the compressor (1), and a low-pressure stop valve (8) is connected between the evaporator and the compressor; in a defrosting or heating state, a refrigerant is compressed by a compressor (1), the refrigerant flows to a low-pressure stop valve (8), an evaporator (3), a high-pressure stop valve (5), a first regulating valve (6), an auxiliary condenser (4), a second regulating valve (7) and a condenser (2) in sequence, and the refrigerant enters the condenser (2), is evaporated, absorbs heat and then flows back to the compressor (1); in addition, the defrosting device of the split air conditioner also comprises an outdoor unit fan (11), the outdoor unit fan (11) is provided with an air outlet and an air inlet, the air outlet of the outdoor unit fan (11) is communicated with the auxiliary condenser (4), and the air inlet of the outdoor unit fan (11) is communicated with the outside air.
2. The split-type air-conditioning defrosting device according to claim 1, characterized in that the auxiliary condenser (4) is at least a fin-type or a tube-strip-type heat exchanger, and more than one auxiliary condenser (4) is provided.
3. The split-type air-conditioning defrosting device according to claim 1, wherein the first regulating valve (6) is at least one of a capillary tube, a thermostatic expansion valve and an electronic expansion valve; more than one first regulating valve (6) is arranged.
4. The split-type air-conditioning defrosting device according to claim 1, wherein the second regulating valve (7) is at least one of a capillary tube, a thermostatic expansion valve and an electronic expansion valve; more than one second regulating valve (7) is arranged.
5. The split type air conditioner defrosting device according to claim 1, which further comprises a low pressure connecting pipe (9), wherein the compressor (1), the low pressure stop valve (8) and the condenser (2) are sequentially connected through the low pressure connecting pipe (9).
6. The split type air conditioner defrosting device according to claim 1, which further comprises a high pressure connecting pipe (10), wherein the evaporator (3), the high pressure stop valve (5), the first regulating valve (6) and the auxiliary condenser (4) are sequentially connected through the high pressure connecting pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921908323.5U CN211119712U (en) | 2019-11-06 | 2019-11-06 | Split type air conditioner defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921908323.5U CN211119712U (en) | 2019-11-06 | 2019-11-06 | Split type air conditioner defrosting device |
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| Publication Number | Publication Date |
|---|---|
| CN211119712U true CN211119712U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921908323.5U Active CN211119712U (en) | 2019-11-06 | 2019-11-06 | Split type air conditioner defrosting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022233132A1 (en) * | 2021-05-06 | 2022-11-10 | 青岛海尔空调器有限总公司 | Air conditioner outdoor unit, air conditioner, air conditioner control method and apparatus, and device and medium |
-
2019
- 2019-11-06 CN CN201921908323.5U patent/CN211119712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022233132A1 (en) * | 2021-05-06 | 2022-11-10 | 青岛海尔空调器有限总公司 | Air conditioner outdoor unit, air conditioner, air conditioner control method and apparatus, and device and medium |
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