CN114165954A - Defrosting assembly, heat pump unit and defrosting method - Google Patents
Defrosting assembly, heat pump unit and defrosting method Download PDFInfo
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- CN114165954A CN114165954A CN202010955377.8A CN202010955377A CN114165954A CN 114165954 A CN114165954 A CN 114165954A CN 202010955377 A CN202010955377 A CN 202010955377A CN 114165954 A CN114165954 A CN 114165954A
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- defrosting
- outdoor heat
- wind shielding
- assembly
- heat exchanger
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- 238000010257 thawing Methods 0.000 title claims abstract description 144
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000009423 ventilation Methods 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
- F25B2347/022—Cool gas defrosting
Abstract
The invention provides a defrosting assembly, a heat pump unit and a defrosting method, wherein the defrosting assembly comprises a defrosting unit for defrosting, and the defrosting assembly also comprises: the fan is arranged on the side part of the outdoor heat exchanger; the wind shielding part is movably arranged and is provided with a wind shielding position and an avoiding position; when the wind shielding part is in a wind shielding position, the wind shielding part is used for shielding at least part of the windward side of the outdoor heat exchanger; when the wind shielding part is located at the avoiding position, the wind shielding part avoids the windward side of the outdoor heat exchanger so as to blow out water on the outdoor heat exchanger through the fan. Through the technical scheme provided by the invention, the technical problem that the defrosting water of the outdoor heat exchanger in the prior art is not completely discharged can be solved.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a defrosting assembly, a heat pump unit and a defrosting method.
Background
At present, when an air source (air-cooled) heat pump unit operates in winter, an air-cooled heat exchanger on the outdoor side operates under a low-temperature working condition and is easy to frost.
Generally, the heat pump unit enters a defrosting procedure to defrost. However, after defrosting is finished, the defrosting water is often not completely removed, so that the heat pump unit is easy to freeze after being operated again, thereby shortening frost time, even the heat exchanger is iced, and affecting performance and reliability of the heat pump unit during low-temperature operation.
Disclosure of Invention
The invention mainly aims to provide a defrosting assembly, a heat pump unit and a defrosting method, and aims to solve the technical problem that defrosting water of an outdoor heat exchanger in the prior art is not discharged completely.
In order to achieve the above object, according to one aspect of the present invention, there is provided a defrosting assembly including a defrosting unit for defrosting, the defrosting assembly further including: the fan is arranged on the side part of the outdoor heat exchanger; the wind shielding part is movably arranged and is provided with a wind shielding position and an avoiding position; when the wind shielding part is in a wind shielding position, the wind shielding part is used for shielding at least part of the windward side of the outdoor heat exchanger; when the wind shielding part is located at the avoiding position, the wind shielding part avoids the windward side of the outdoor heat exchanger so as to blow out water on the outdoor heat exchanger through the fan.
Further, the wind blocking part is rotatably disposed at the windward side of the outdoor heat exchanger.
Furthermore, the wind shielding parts are arranged at intervals along the extension direction of the outdoor heat exchanger; when a plurality of wind-break portions are all located at wind-break positions, the windward side of the outdoor heat exchanger is shielded by the plurality of wind-break portions.
Further, the defrosting assembly further comprises a transmission component, and the transmission component is used for driving the wind shielding part to move to a wind shielding position or an avoiding position.
Further, the fan is arranged on the leeward side of the outdoor heat exchanger.
Further, the outdoor heat exchanger is a plurality of, and a plurality of outdoor heat exchangers are arranged around the fan.
Furthermore, the number of the outdoor heat exchangers is two, the first end of one outdoor heat exchanger is connected with the first end of the other outdoor heat exchanger, the second end of the one outdoor heat exchanger is arranged at an interval with the second end of the other outdoor heat exchanger, and the fan is arranged at a gap between the second end of the one outdoor heat exchanger and the second end of the other outdoor heat exchanger.
According to another aspect of the invention, a heat pump unit is provided, which comprises a defrosting assembly, wherein the defrosting assembly is the defrosting assembly provided above.
According to another aspect of the present invention, there is provided a defrosting method applied to the defrosting assembly provided above, the defrosting method including: controlling a wind shielding part of the defrosting assembly to move to a wind shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode; when the defrosting unit is in a defrosting water discharging stage, the fan of the defrosting assembly is controlled to work, and the wind shielding part of the defrosting assembly is controlled to move from the wind shielding position to the avoiding position.
Further, the defrosting assembly is the defrosting assembly provided above, and the defrosting method includes: controlling a plurality of wind shielding parts of the defrosting assembly to move to wind shielding positions, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode; when the defrosting unit is in a defrosting water discharging stage, controlling at least one wind shielding part to move from a wind shielding position to an avoiding position, and after a preset time interval, controlling the wind shielding part in the avoiding position to move to the wind shielding position so as to finish a ventilation and water discharging operation; and repeating the ventilation and drainage operation to complete the drainage operation of the outdoor heat exchanger of the defrosting assembly.
Further, the defrosting assembly is the defrosting assembly provided above, and the defrosting method further includes: controlling a plurality of wind shielding parts of the defrosting assembly to move to the wind shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode; when the defrosting unit is in a defrosting water discharging stage, the wind shielding parts are sequentially controlled to move from the wind shielding position to the avoiding position along the extending direction of the outdoor heat exchanger of the defrosting unit, and after a preset time interval, the wind shielding parts in the avoiding position are controlled to move to the wind shielding position.
By applying the technical scheme of the invention, during defrosting, the wind shielding part is positioned at the wind shielding position to shield at least part of the windward side, and then when the defrosting unit is in the defrosting water discharging stage, the fan is controlled to work, and the wind shielding part is controlled to move from the wind shielding position to the avoiding position so as to blow out water on the outdoor heat exchanger under the action of wind power of the fan, so that the defrosting water is prevented from remaining on the outdoor heat exchanger, and the water is discharged thoroughly. Therefore, the defrosting assembly provided by the invention can solve the technical problem that defrosting water of the outdoor heat exchanger in the prior art is not discharged completely.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic structural view of a defrost assembly provided in accordance with an embodiment of the present invention;
fig. 2 shows a view from a in fig. 1.
Wherein the figures include the following reference numerals:
10. an outdoor heat exchanger; 20. a fan; 30. a wind shield part.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides a defrosting assembly including a defrosting unit for defrosting. The defrosting assembly further includes an outdoor heat exchanger 10, a fan 20, and a wind shield 30, the fan 20 being disposed at a side of the outdoor heat exchanger 10. The wind shielding portion 30 is movably provided, and the wind shielding portion 30 has a wind shielding position and an escape position. When the wind shielding portion 30 is in the wind shielding position, the wind shielding portion 30 is used for shielding at least part of the windward side of the outdoor heat exchanger 10; when the wind shielding portion 30 is in the avoidance position, the wind shielding portion 30 is disposed to avoid the windward side of the outdoor heat exchanger 10 to blow out the water on the outdoor heat exchanger 10 by the fan 20.
Specifically, the fan 20 in this embodiment is a fan 20 provided in the defrosting component or the heat pump unit itself, and therefore, a new structure of the fan 20 is not required, and only a structure of the windshield 30 needs to be added on the windward side of the outdoor heat exchanger 10. With the defrosting assembly provided by the embodiment, during defrosting, the wind shielding part 30 is now in the wind shielding position to shield at least part of the windward side, and then, when the defrosting unit is in the defrosting water discharging stage, the fan 20 is controlled to operate, and the wind shielding part 30 is controlled to move from the wind shielding position to the avoiding position, so that water on the outdoor heat exchanger 10 is blown out under the action of wind force of the fan 20, defrosting water is prevented from remaining on the outdoor heat exchanger 10, and water is drained thoroughly. Therefore, the defrosting assembly provided by the present embodiment can solve the technical problem that the defrosting water of the outdoor heat exchanger 10 in the prior art is not completely discharged.
Specifically, the wind blocking portion 30 is movably or rotatably provided at the windward side of the outdoor heat exchanger 10. Preferably, the wind blocking portion 30 in the present embodiment is rotatably disposed at the windward side of the heat exchanger, so that the wind blocking portion 30 is rotated to a wind blocking position or an escape position to facilitate a water drainage operation of the outdoor heat exchanger 10.
In the present embodiment, the wind blocking portion 30 is provided in plurality, and the plurality of wind blocking portions 30 are provided at intervals along the extending direction of the outdoor heat exchanger 10. When the plurality of wind shielding portions 30 are located at the wind shielding position, the plurality of wind shielding portions 30 are arranged to shield the windward side of the outdoor heat exchanger 10, that is, the plurality of wind shielding portions 30 are arranged to completely cover the windward side of the outdoor heat exchanger 10. With such an arrangement, when the defrosting unit is in a defrosting water discharging stage during a specific blowing and draining operation, the fan 20 operates to control the one or more wind shielding portions 30 to move from the wind shielding position to the avoiding position, so that water on the heat exchanger portion corresponding to the one or more wind shielding portions 30 is blown out under the action of wind power of the fan 20, and drainage is performed gradually. During a particular operation, the fan 20 is operated at a maximum wind speed. Meanwhile, only one or more wind shielding parts 30 are opened, so that the fan 20 can be concentrated on the heat exchanger part corresponding to the one or more wind shielding parts 30, and the corresponding heat exchanger part can be drained by concentrating wind power, and compared with the operation of opening all the wind shielding parts 30 and blowing through the fan 20, the drainage effect in the embodiment is better.
Specifically, the fan 20 in the present embodiment is disposed on the leeward side of the outdoor heat exchanger 10. With such a structural arrangement, the drainage effect can be better improved, so that the water on the outdoor heat exchanger 10 can be better blown out from the windward side.
In this embodiment, the defrost assembly further comprises a transmission member for driving the windshield 30 to move to the windshield position or the avoidance position. With such a structural arrangement, it is possible to facilitate the improvement of the degree of automation of the defrosting assembly, so as to facilitate the movement of the driving windshield 30.
Specifically, the outdoor heat exchanger 10 may be plural, and the plural outdoor heat exchangers 10 are disposed around the fan 20. By adopting the structure, the wind power of the fan 20 can be better acted on the outdoor heat exchanger 10, so that the water on the outdoor heat exchanger 10 can be better blown out by the wind power of the fan 20, and the drainage effect can be better improved. In addition, the structural layout can be optimized, and the compactness of the structural arrangement is improved.
In this embodiment, there are two outdoor heat exchangers 10, a first end of one outdoor heat exchanger 10 is connected to a first end of the other outdoor heat exchanger 10, a second end of the one outdoor heat exchanger 10 is spaced from a second end of the other outdoor heat exchanger 10, and the fan 20 is disposed at a gap between the second end of the one outdoor heat exchanger 10 and the second end of the other outdoor heat exchanger 10. That is, one outdoor heat exchanger 10 is inclined at a predetermined angle to the other outdoor heat exchanger 10, and the fan 20 is disposed at a gap between the two outdoor heat exchangers 10, so that it is possible to concentrate the wind force of the fan 20, so that the wind force of the fan 20 is concentrated on the two outdoor heat exchangers 10, and thus it is possible to discharge water on the two outdoor heat exchangers 10 by the fan 20, thereby improving a drainage effect. Meanwhile, the structural layout can be optimized, and the compactness of the structural arrangement is improved.
Specifically, the plurality of wind blocking portions 30 in this embodiment form a wind blocking curtain, the wind blocking curtain is disposed on a ventilation surface (may be a windward side) of the outdoor heat exchanger 10 (the outdoor heat exchanger 10 in this embodiment may be an air-cooled heat exchanger), and the size of the wind blocking curtain is capable of completely blocking the ventilation surface. The defrost assembly in this embodiment further includes a controller that controls the windshields curtain to be retracted or lowered. Specifically, the wind screen curtain has N (2 or more) ventilation areas, and any ventilation area can be opened or closed arbitrarily according to a control system. The curtain is retracted or put down means that when the curtain is retracted, the curtain does not block the ventilation of the heat exchanger; when the curtain is lowered, the curtain completely blocks the ventilation of the heat exchanger. Any ventilation zone being open or closed means that air can flow through the zone when the ventilation zone is open; when the ventilation zone is closed, air cannot flow through the zone. The defrosting subassembly that this embodiment provided has simple structure, the advantage of easily realizing to solve the unsatisfactory frequent defrosting that leads to of current defrosting water drainage and long-term operation and hang the ice problem, thereby when extension frost, promote unit low temperature operation performance.
The second embodiment of the invention provides a heat pump unit which comprises a defrosting assembly, wherein the defrosting assembly is the defrosting assembly provided by the second embodiment.
The third embodiment of the invention provides a defrosting method, which is suitable for the defrosting assembly provided by the third embodiment. The defrosting method comprises the following steps: controlling the wind shielding part 30 of the defrosting assembly to move to a wind shielding position, and then controlling the defrosting unit of the defrosting assembly to enter a defrosting mode; when the defrosting unit is in the defrosting water discharging stage, the fan 20 of the defrosting assembly is controlled to work, and the wind shielding part 30 of the defrosting assembly is controlled to move from the wind shielding position to the avoiding position. By adopting the defrosting method, water on the outdoor heat exchanger 10 can be better discharged, so that the water discharging effect is improved, the problems of frequent defrosting and ice hanging in long-term operation caused by unsatisfactory defrosting water discharging are avoided, and the low-temperature operation performance of the unit is improved when frost is prolonged.
Specifically, the windshield unit 30 in the present embodiment is plural. The defrosting method comprises the following steps: controlling a plurality of or all of the wind-shielding portions 30 of the defrosting assembly to move to a wind-shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode; when the defrosting unit is in a defrosting water discharging stage, controlling at least one wind shielding part 30 to move from a wind shielding position to an avoiding position, and after a preset time interval, controlling the wind shielding part 30 in the avoiding position to move to the wind shielding position so as to finish a ventilation and water discharging operation; the ventilation drain operation is repeated to complete the drain operation of the outdoor heat exchanger 10 of the defrosting assembly. By adopting the method, the ventilation and drainage operations can be conveniently and sequentially carried out on different parts of the outdoor heat exchanger 10 step by step, so that the drainage effect is conveniently improved.
In the present embodiment, the windshield unit 30 is provided in plurality in the present embodiment. The defrosting method further comprises the following steps: a plurality of or all of the wind blocking portions 30 of the defrost assembly are controlled to move to the wind blocking position and then the defrost unit of the defrost assembly is controlled to enter the defrost mode. When the defrosting unit is in the defrosting water discharging stage, the wind shielding parts 30 are sequentially controlled to move from the wind shielding position to the avoiding position along the extending direction of the outdoor heat exchanger 10 of the defrosting unit, and after a preset time interval, the wind shielding parts 30 in the avoiding position are controlled to move to the wind shielding position. By adopting the method, the drainage operation can be further optimized to further improve the drainage effect and better avoid the condition that the defrosting water is remained on the outdoor heat exchanger 10.
The specific operation steps are as follows: when the unit is not frosted and normally operates, the wind shielding curtain is retracted (the wind shielding curtain is provided with N ventilation areas); when entering the defrosting procedure for defrosting, the wind screen is fully put down. When the defrosting process is carried out to a defrosting water removal time period, the fan 20 operates at the maximum wind speed, one or more (less than N) ventilation areas can be opened according to the control logic, when the one or more ventilation areas are opened to reach the control specified time, the ventilation areas are closed, one or more of the rest ventilation areas are selected, and the ventilation areas are sequentially opened and closed to finally achieve the purpose of removing defrosting water; and after the defrosting water is removed, the wind shielding curtain is retracted.
The idea of the invention is that: in the defrosting process, in the defrosting water removal time period, the ventilation area of the surface of each section of the outdoor heat exchanger 10 is changed through the wind shielding curtain, the wind speed of the ventilation surface is improved, defrosting water is removed, and the low-temperature operation performance and reliability of the unit are improved when frost is prolonged. The wind screen curtain is provided with a transmission part for folding or putting down the wind screen curtain so as to control the transmission part through the control structure and further drive the wind screen curtain to move. The wind screen curtain has certain rigidity, and can be but not limited to a shutter which can control the opening and closing of each ventilation area, and the wind screen curtain is arranged on the windward side of the heat exchanger.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: when frost is prolonged, the low-temperature running performance and reliability of the unit are improved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A defrost assembly including a defrost unit for defrosting, said defrost assembly further comprising:
the air conditioner comprises an outdoor heat exchanger (10) and a fan (20), wherein the fan (20) is arranged on the side of the outdoor heat exchanger (10);
the wind shielding part (30), the wind shielding part (30) is movably arranged, and the wind shielding part (30) has a wind shielding position and an avoiding position; when the wind shielding part (30) is in the wind shielding position, the wind shielding part (30) is used for shielding at least part of the windward side of the outdoor heat exchanger (10); when the wind shielding part (30) is located at the avoiding position, the wind shielding part (30) avoids the windward side of the outdoor heat exchanger (10) so as to blow out water on the outdoor heat exchanger (10) through the fan (20).
2. Defrost assembly according to claim 1, characterized in that the windshield (30) is rotatably arranged at the windward side of the outdoor heat exchanger (10).
3. The defrost assembly of claim 1, wherein the windshield portion (30) is plural, and the plural windshield portions (30) are arranged at intervals along an extending direction of the outdoor heat exchanger (10); when the plurality of wind shielding parts (30) are all located at the wind shielding position, the plurality of wind shielding parts (30) shield the windward side of the outdoor heat exchanger (10).
4. Defrost assembly according to claim 1, characterized in that the defrost assembly further comprises transmission means for driving the windshield (30) to the windshield position or the avoidance position.
5. Defrost assembly according to claim 1, characterized in that the fan (20) is arranged on the leeward side of the outdoor heat exchanger (10).
6. Defrost assembly according to claim 1, characterized in that the outdoor heat exchanger (10) is plural, the plural outdoor heat exchangers (10) being arranged around the fan (20).
7. The defrost assembly of claim 1 wherein the number of the outdoor heat exchangers (10) is two, a first end of one of the outdoor heat exchangers (10) is connected to a first end of the other of the outdoor heat exchangers (10), a second end of one of the outdoor heat exchangers (10) is spaced apart from a second end of the other of the outdoor heat exchangers (10), and the fan (20) is disposed at a gap between the second end of the one of the outdoor heat exchangers (10) and the second end of the other of the outdoor heat exchangers (10).
8. A heat pump unit comprising a defrost assembly according to any one of claims 1 to 7.
9. A defrost method adapted for use with the defrost assembly of any of claims 1-7, the defrost method comprising:
controlling a wind shielding part of the defrosting assembly to move to a wind shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode;
and when the defrosting unit is in a defrosting water discharging stage, controlling a fan of the defrosting assembly to work, and controlling a wind shielding part of the defrosting assembly to move from the wind shielding position to an avoiding position.
10. The defrost method of claim 9, wherein the defrost assembly is the defrost assembly of claim 3, the defrost method comprising:
controlling a plurality of wind shielding parts of the defrosting assembly to move to the wind shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode;
when the defrosting unit is in a defrosting water discharging stage, controlling at least one wind shielding part to move from the wind shielding position to the avoiding position, and after a preset time interval, controlling the wind shielding part in the avoiding position to move to the wind shielding position so as to finish a ventilation and water discharging operation;
repeating the ventilating and draining operation to complete the draining operation of the outdoor heat exchanger of the defrosting assembly.
11. The defrost method of claim 9, wherein the defrost assembly is the defrost assembly of claim 3, the defrost method further comprising:
controlling a plurality of wind shielding parts of the defrosting assembly to move to the wind shielding position, and then controlling a defrosting unit of the defrosting assembly to enter a defrosting mode;
when the defrosting unit is in a defrosting water discharging stage, the wind blocking parts are sequentially controlled to move from the wind blocking positions to the avoiding positions along the extending direction of the outdoor heat exchanger of the defrosting unit, and after a preset time interval, the wind blocking parts in the avoiding positions are controlled to move to the wind blocking positions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010955377.8A CN114165954A (en) | 2020-09-11 | 2020-09-11 | Defrosting assembly, heat pump unit and defrosting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010955377.8A CN114165954A (en) | 2020-09-11 | 2020-09-11 | Defrosting assembly, heat pump unit and defrosting method |
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| CN114165954A true CN114165954A (en) | 2022-03-11 |
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| CN107366985A (en) * | 2017-08-17 | 2017-11-21 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit and there is its air conditioner |
| CN109163417A (en) * | 2018-08-16 | 2019-01-08 | 北京同方洁净技术有限公司 | Air source heat pump system |
| CN109282541A (en) * | 2018-10-16 | 2019-01-29 | 北京中科华誉热泵设备制造有限公司 | Defrosting auxiliary system, air conditioner and heat pump unit and Defrost method under extremely cold operating condition |
| CN110332654A (en) * | 2019-07-11 | 2019-10-15 | 珠海格力电器股份有限公司 | Air-conditioning system and air-conditioning system defrosting control method |
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