CN113573558B - Heat dissipation system, air conditioning unit and air conditioning unit control method - Google Patents
Heat dissipation system, air conditioning unit and air conditioning unit control method Download PDFInfo
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- CN113573558B CN113573558B CN202110859916.2A CN202110859916A CN113573558B CN 113573558 B CN113573558 B CN 113573558B CN 202110859916 A CN202110859916 A CN 202110859916A CN 113573558 B CN113573558 B CN 113573558B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
Abstract
The invention discloses a heat dissipation system, an air conditioning unit and an air conditioning unit control method, wherein the heat dissipation system comprises: a heat dissipation plate; lay the refrigerant heat dissipation pipeline of locating the heating panel, include: the first heat dissipation pipeline is a partial pipeline of a refrigerant outlet pipe of a condenser of the air conditioning unit; and the second heat dissipation pipeline is a partial pipeline of a supercooling refrigerant outlet pipe of a supercooling structure of the air conditioning unit. The invention solves the problem that the operating frequency of the compressor is influenced by poor heat dissipation of the driving plate in the prior art, meets the refrigeration requirements of the unit under various severe working conditions, and ensures that the unit stably and reliably operates.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heat dissipation system, an air conditioning unit and an air conditioning unit control method.
Background
The heat dissipation capacity of the driving plate of the frequency conversion condensing unit is large when the driving plate operates, and meanwhile, the stable and reliable operation of the driving plate needs to be carried out in a proper temperature environment, so that proper and effective heat dissipation is carried out on the driving plate of the frequency conversion condensing unit.
Under some severe working conditions, when the heat dissipation effect of the unit drive plate is poor, the temperature of the drive plate can rapidly rise and rapidly approach to a temperature point at which the drive plate can stably and reliably operate, at the moment, the operation of the unit drive plate is limited, and then the operation frequency of a unit compressor can be limited to a certain frequency, so that the unit compressor cannot operate according to the target frequency of the unit; when worse, because the temperature value of unit drive plate is too high, its operation is further restricted, the operating frequency of unit compressor can reduce a lot this moment, until the temperature value of unit drive plate reduces the temperature value that the unit drive plate can reliable and stable operation, lead to the operating frequency of unit compressor too low, apart from unit target frequency gap big, unit refrigerating output is too little, can not satisfy the stable and reliable output of unit refrigerating output under this type of abominable operating mode, influence user's result of use.
Aiming at the problem that the operating frequency of the compressor is influenced by poor heat dissipation of a driving plate in the related art, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a heat dissipation system, an air conditioning unit and an air conditioning unit control method, which at least solve the problem that the operating frequency of a compressor is influenced due to poor heat dissipation of a driving plate in the prior art.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a heat dissipation system including: a heat dissipation plate; lay the refrigerant heat dissipation pipeline in heating panel, include: the first heat dissipation pipeline is a partial pipeline of a refrigerant outlet pipe of a condenser of the air conditioning unit; and the second heat dissipation pipeline is a partial pipeline of a supercooling refrigerant outlet pipe of a supercooling structure of the air conditioning unit.
Further, the supercooling structure includes: a plate heat exchanger; the first refrigerant pipeline laid on the plate type heat exchanger is a part of pipeline between a liquid storage tank and an evaporator of the air conditioning unit; and the second refrigerant pipeline is laid on the plate type heat exchanger, the first end of the second refrigerant pipeline is arranged on the pipeline between the liquid storage tank and the plate type heat exchanger, and the second end of the second refrigerant pipeline is connected with the compressor.
Further, the second refrigerant pipeline and the compressor comprise a first branch and a second branch, first ends of the first branch and the second branch are both arranged on a pipeline between the plate heat exchanger and the compressor, and second ends of the first branch and the second branch are both connected with an air supplement port of the compressor; the second heat dissipation pipeline is a part of the first branch pipeline.
Further, the supercooling structure further includes: the throttling device is positioned on a second refrigerant pipeline between the liquid storage tank and the plate heat exchanger; the first control valve is positioned on the first branch circuit; and the second control valve is positioned on the second branch.
According to another aspect of the embodiments of the present invention, there is provided an air conditioning unit including: a drive plate; the heat dissipation system is used for dissipating heat for the driving board.
According to another aspect of the embodiment of the invention, an air conditioning unit control method is provided, and is characterized by being applied to the air conditioning unit, and the method comprises the following steps: detecting the current temperature of a driving plate of the air conditioning unit; the heat dissipation system is used for dissipating heat for the driving board; acquiring a preset temperature; and controlling the operation of the heat dissipation system according to the current temperature and the preset temperature.
Further, the operation of the heat dissipation system is controlled according to the current temperature and the preset temperature, and the method comprises the following steps: when the current temperature T1 is less than or equal to the preset temperature T2-the first temperature difference delta T1, controlling the conduction of a second branch of the supercooling structure; and when the preset temperature T2-the first temperature difference delta T1 is smaller than the current temperature T1 and smaller than or equal to the preset temperature T2, controlling the conduction of a first branch of the supercooling structure.
Further, after the first branch of the supercooling structure is controlled to be conducted, the method further comprises the following steps: re-detecting the current temperature; and when the preset temperature T2-the second temperature difference delta T2 is less than or equal to the current temperature T1 is less than or equal to the preset temperature T2-the first temperature difference delta T1, controlling the first branch and the second branch of the supercooling structure to be conducted.
Further, controlling the conduction of the second branch of the supercooling structure includes: controlling the first control valve to be closed and controlling the second control valve to be communicated; controlling the conduction of the first branch of the subcooling structure comprises: controlling the second control valve to be closed and controlling the first control valve to be conducted; controlling the first branch and the second branch of the supercooling structure to be conducted, including: and controlling the first control valve to be conducted and controlling the second control valve to be conducted.
According to yet another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
The invention provides a heat dissipation system which can be applied to a variable frequency condensing unit to dissipate heat of a drive plate. The heat dissipation plate of the drive plate is dissipated through two refrigerant pipelines, so that the variable-frequency condensing unit runs according to the target frequency under various extremely severe working conditions, the frequency limiting and frequency reducing conditions of the unit are reduced to the greatest extent, the capacity of the unit is maintained in a stable state, the unit runs reliably, and the refrigeration requirements of the unit under various severe working conditions are met.
Drawings
Fig. 1 is an alternative structural schematic diagram of an air conditioning assembly according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an alternative configuration of an air conditioning assembly according to an embodiment of the present invention;
fig. 3 is an alternative flow chart of an air conditioning unit control method according to an embodiment of the present invention.
Description of reference numerals:
1. a heat dissipation plate; 2. a condenser; 3. a plate heat exchanger; 4. a liquid storage tank; 5. an evaporator; 6. a compressor; 7. a first control valve; 8. a second control valve; 9. a throttling device; 10. drying the filter; 11. an electronic magazine expansion valve; 12. a gas-liquid separator.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, a heat dissipation system is provided, and specifically, fig. 1 shows an optional structural schematic diagram of an air conditioning unit where the heat dissipation system is located, and as shown in fig. 1, the heat dissipation system includes:
a heat dissipation plate 1;
lay in refrigerant heat dissipation pipeline of heating panel 1, include:
the first heat dissipation pipeline is a partial pipeline comprising a refrigerant outlet pipe of the condenser 2 of the air conditioning unit;
and the second heat dissipation pipeline is a partial pipeline of a supercooling refrigerant outlet pipe of a supercooling structure of the air conditioning unit.
In the above embodiment, a heat dissipation system is provided, which may be applied to a variable frequency condensing unit to dissipate heat of a drive board, and includes a heat dissipation plate, and a part of pipelines of a refrigerant outlet pipe of a condenser of an air conditioning unit and a part of pipelines of a supercooling refrigerant outlet pipe of a supercooling structure. The heat dissipation plate of the drive plate is dissipated through two refrigerant pipelines, so that the variable-frequency condensing unit runs according to the target frequency under various extremely severe working conditions, the frequency limiting and frequency reducing conditions of the unit are reduced to the greatest extent, the capacity of the unit is maintained in a stable state, the unit runs reliably, and the refrigeration requirements of the unit under various severe working conditions are met.
The supercooling refrigerant outlet pipe is used for radiating heat for the driving plate by the supercooling heat radiating plate 1, is not connected with pipelines of the condenser 2 and the compressor 6, only related refrigerant pipelines are laid on the heat radiating plate 1 to be contacted with the heat radiating plate 1, and the medium-temperature high-pressure refrigerant liquid from the condenser 2 flows through the driving heat radiating plate 1 to absorb the heat radiated by the driving heat radiating plate 1, so that the temperature of the driving plate is reduced. The associated piping cannot be in direct contact with the drive plate to avoid condensation forming an electrical safety hazard.
Except that the refrigerant that utilizes frequency conversion condensation unit condenser 2 to come out carries out cooling heat dissipation cooling to unit drive heating panel 1, when its drive plate temperature still surpassed the temperature point of reliable and stable operation, the tonifying qi refrigerant of the supercooling structure of reconstituting compressor 6 of repurposing utilizes, further cools off unit drive heating panel 1 for the radiating effect of drive plate reaches the requirement.
As shown in fig. 1, the supercooling structure includes: a plate heat exchanger 3; the first refrigerant pipeline laid on the plate type heat exchanger 3 comprises a part of pipeline between a liquid storage tank 4 and an evaporator 5 of the air conditioning unit; the second refrigerant pipeline is laid on the plate type heat exchanger 3, the first end of the second refrigerant pipeline is arranged on the pipeline between the liquid storage tank 4 and the plate type heat exchanger 3, and the second end of the second refrigerant pipeline is connected with the compressor 6.
The supercooling refrigerant outlet pipe is a pipeline of the second refrigerant pipeline between the plate heat exchanger 3 and the compressor.
In a preferred embodiment 1 of the present invention, another heat dissipation system is provided, and specifically, fig. 2 illustrates an optional structural schematic diagram of an air conditioning unit where the heat dissipation system is located, as shown in fig. 2, a second refrigerant pipeline and a compressor 6 include a first branch and a second branch, first ends of the first branch and the second branch are both disposed on a pipeline between the plate heat exchanger 3 and the compressor 6, and second ends of the first branch and the second branch are both connected to an air supplement port of the compressor 6; the second heat dissipation pipeline is a part of the first branch pipeline.
The one end that second refrigerant pipeline and compressor 6 are connected is divided into first branch road and second branch road, and first branch road and second branch road all are connected with the tonifying qi mouth of compressor 6.
In order to control each branch, the supercooling structure further includes: a first control valve 7 located on the first branch; and a second control valve 8 is positioned on the second branch. The control valve is an electromagnetic valve, and can be realized by other switch valves. And a throttling device 9 which is an electronic expansion valve is arranged on a second refrigerant pipeline between the liquid storage tank 4 and the plate heat exchanger 3 and is used for adjusting the flow according to the superheat degree.
According to the heat dissipation capacity condition of the drive plate, the opening degree of an electronic expansion valve of the supercooling structure is controlled and adjusted, so that the temperature value of the drive plate is controlled within a reasonable range, and the electromagnetic valve on the plate replacement and air supplement loop is matched to start and stop, and the stable and reliable operation of the unit is ensured.
Example 2
Based on the heat dissipation system provided in the above embodiment 1, in a preferred embodiment 2 of the present invention, there is further provided an air conditioning unit, as shown in fig. 1 or 2, including a driving board; the heat dissipation system as in embodiment 1 above, for dissipating heat from the drive board.
In the above embodiment, a heat dissipation system is provided, which may be applied to a variable frequency condensing unit to dissipate heat of a drive board, where the heat dissipation system includes a heat dissipation plate, and a portion of a pipeline of a refrigerant outlet pipe of a condenser of an air conditioning unit and a portion of a pipeline of a supercooled refrigerant outlet pipe of a supercooling structure. The heat dissipation plate of the drive plate is dissipated through two refrigerant pipelines, so that the variable-frequency condensing unit runs according to the target frequency under various extremely severe working conditions, the frequency limiting and frequency reducing conditions of the unit are reduced to the greatest extent, the capacity of the unit is maintained in a stable state, the unit runs reliably, and the refrigeration requirements of the unit under various severe working conditions are met.
Example 3
In a preferred embodiment 3 of the present invention, there is provided an air conditioning unit control method applied to the air conditioning unit in the above embodiment 2. Specifically, fig. 3 shows an alternative flowchart of the method, and as shown in fig. 3, the method includes the following steps S302-S306:
s302: detecting the current temperature of a driving plate of the air conditioning unit; the heat dissipation system is used for dissipating heat for the driving board;
s304: acquiring a preset temperature;
s306: and controlling the operation of the heat dissipation system according to the current temperature and the preset temperature.
In the above embodiment, a heat dissipation system is provided, which may be applied to a variable frequency condensing unit to dissipate heat of a drive board, and includes a heat dissipation plate, and a part of pipelines of a refrigerant outlet pipe of a condenser of an air conditioning unit and a part of pipelines of a supercooling refrigerant outlet pipe of a supercooling structure. The heat dissipation plate of the drive plate is cooled through the two refrigerant pipelines, so that the variable-frequency condensing unit runs according to the target frequency under various extremely severe working conditions, the frequency limiting and reducing situation of the unit is reduced to the greatest extent, the capacity of the unit is maintained in a stable state, the unit runs reliably, and the refrigeration requirement of the unit under various severe working conditions is met.
According to current temperature and the operation of presetting temperature control cooling system, include: the first control mode: when the current temperature T1 is less than or equal to a preset temperature T2-a first temperature difference delta T1, controlling the conduction of a second branch of the supercooling structure; the second control mode: and when the preset temperature T2-the first temperature difference delta T1 is less than the current temperature T1 and less than or equal to the preset temperature T2, controlling the conduction of a first branch of the supercooling structure.
A third control mode: detecting the current temperature again after the first branch of the supercooling structure is controlled to be conducted; and when the preset temperature T2-the second temperature difference delta T2 is less than or equal to the current temperature T1 is less than or equal to the preset temperature T2-the first temperature difference delta T1, controlling the first branch and the second branch of the supercooling structure to be conducted.
Wherein, the second branch circuit of control subcooling structure is switched on, includes: controlling the first control valve 7 to be closed and controlling the second control valve 8 to be conducted; controlling the conduction of the first branch of the subcooling structure comprises: controlling the second control valve 8 to be closed and controlling the first control valve 7 to be conducted; controlling the first branch and the second branch of the supercooling structure to be conducted, including: the first control valve 7 is controlled to conduct and the second control valve 8 is controlled to conduct.
Specifically, the first control mode includes: when the current temperature T1 is less than or equal to the preset temperature T2-the first temperature difference delta T1, the medium-temperature high-pressure refrigerant liquid from the condenser 2 flows through the driving heat dissipation plate 1 to absorb the heat dissipated by the driving plate, so that the temperature of the driving plate is reduced, and the current temperature T1 of the driving plate can meet the requirement of reliable operation. Other components of a main path of the unit system run according to normal refrigeration logic, the state of the components related to the supercooling structure is that the first control valve 7 is in an off state, the second control valve 8 is in a closed state, the throttling device 9 adjusts according to the superheat degree delta 3, and a refrigerant coming out of the supercooling structure flows to an air supplement port of the compressor 6 and does not flow to a pipeline corresponding to the driving heat dissipation plate 1 any more.
The second control mode includes: when the preset temperature T2-the first temperature difference delta T1 is smaller than the current temperature T1 and smaller than or equal to the preset temperature T2, other components of the main circuit of the unit system operate according to normal refrigeration logic, the middle-temperature high-pressure refrigerant liquid from the condenser 2 flows through the driving heat dissipation plate 1 to absorb part of heat dissipated by the middle-temperature high-pressure refrigerant liquid, and then the low-temperature low-pressure refrigerant from the supercooling structure flows through the driving heat dissipation plate 1 to absorb heat dissipated by the middle-temperature high-pressure refrigerant liquid, so that the temperature of the driving plate is reduced, and the current temperature T1 of the driving plate can meet the reliable operation requirement. The related component states of the supercooling structure are that the first control valve 7 is in an attraction state, the second control valve 8 is in a disconnection state, the throttling device 9 adjusts according to the superheat degree delta 4, and the low-temperature and low-pressure refrigerant from the supercooling structure flows back to the air supplementing port of the compressor 6 after flowing to the driving heat dissipation plate 1.
The third control mode includes: when the preset temperature T2-the second temperature difference delta T2 is less than or equal to the current temperature T1 and less than or equal to the preset temperature T2-the first temperature difference delta T1, other components of the main circuit of the unit system operate according to normal refrigeration logic, the middle-temperature high-pressure refrigerant liquid from the condenser 2 flows through the driving heat dissipation plate 1 to absorb part of heat emitted by the middle-temperature high-pressure refrigerant liquid, then part of the low-temperature low-pressure refrigerant from the supercooling structure flows through the driving heat dissipation plate 1 to absorb heat emitted by the middle-temperature high-pressure refrigerant liquid, the temperature of the driving plate is reduced, and the current temperature T1 of the driving plate can meet the requirement of reliable operation. The related component states of the supercooling structure are that the first control valve 7 is in an attraction state, the second control valve 8 is in an attraction state, the throttling device 9 adjusts according to the superheat degree delta 5, the low-temperature and low-pressure refrigerant from the supercooling structure is divided into two paths, one part of the low-temperature and low-pressure refrigerant directly flows back to the air supplementing port of the compressor 6, and the other part of the low-temperature and low-pressure refrigerant flows back to the air supplementing port of the compressor 6 after flowing to the driving heat dissipation plate 1. When all the low-temperature low-pressure refrigerant from the supercooling structure flows through the driving heat dissipation plate 1 to absorb heat dissipated by the driving heat dissipation plate, the situation that the current temperature T1 is less than or equal to the preset temperature T2-the first temperature difference delta T1 may occur due to large heat dissipation amount of cooling, at this time, if the first control mode is adopted, the refrigerant from the supercooling structure does not flow to the pipeline corresponding to the driving heat dissipation plate 1 any more, the heat dissipation amount of the driving plate is insufficient, the current temperature T1 continuously rises, and the second control mode is entered again, so that the situation that the first control mode and the second control mode are switched in a reciprocating manner exists, the current temperature fluctuation of the driving plate is large, the stable operation of the unit is further influenced, at this time, the third control mode is adopted, when the current temperature T1 of the supercooling structure is satisfied, the current temperature T2-the second temperature difference delta T2 is less than or equal to the current temperature T1, and is less than or equal to the preset temperature T2-the first temperature difference delta T1, a part of the low-temperature refrigerant from the supercooling structure flows through the driving heat dissipation plate 1 to absorb heat dissipation plate, so that the current temperature T1 can satisfy the current temperature T1, and the current temperature T1 can be switched frequently, and the current temperature T1, and the current temperature of the unit can be ensured to be operated reliably operated repeatedly.
In different control modes, the throttle device 9 (electronic expansion valve) is controlled according to different degrees of superheat Δ 3, Δ 4, Δ 5, so that the temperature of the driving heat dissipation plate can be accurately controlled.
Under the different modes, the heat dissipation capacity of drive heating panel 1 is all inconsistent, and throttling arrangement 9 adjusts respectively according to the superheat degree numerical value of difference under each mode for the radiating effect of its drive plate reaches the demand, and the low temperature low pressure refrigerant that makes the supercooling structure come out simultaneously can not be too low when passing through drive heating panel 1, prevents that the condensation phenomenon from appearing in the drive plate of unit, influences electrical safety.
Example 4
Based on the air conditioning unit control method provided in embodiment 3 above, there is also provided in a preferred embodiment 4 of the present invention a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
In the above embodiment, a heat dissipation system is provided, which may be applied to a variable frequency condensing unit to dissipate heat of a drive board, where the heat dissipation system includes a heat dissipation plate, and a portion of a pipeline of a refrigerant outlet pipe of a condenser of an air conditioning unit and a portion of a pipeline of a supercooled refrigerant outlet pipe of a supercooling structure. The heat dissipation plate of the drive plate is cooled through the two refrigerant pipelines, so that the variable-frequency condensing unit runs according to the target frequency under various extremely severe working conditions, the frequency limiting and reducing situation of the unit is reduced to the greatest extent, the capacity of the unit is maintained in a stable state, the unit runs reliably, and the refrigeration requirement of the unit under various severe working conditions is met.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (9)
1. A heat dissipation system, comprising:
a heat dissipation plate (1);
lay in the refrigerant heat dissipation pipeline of heating panel (1) includes:
the first heat dissipation pipeline is a partial pipeline of a refrigerant outlet pipe of a condenser (2) of the air conditioning unit;
and the second heat dissipation pipeline is a part of pipeline of a supercooled refrigerant outlet pipe of the supercooling structure of the air conditioning unit.
2. The heat dissipating system of claim 1, wherein said subcooling structure comprises:
a plate heat exchanger (3);
the first refrigerant pipeline laid on the plate type heat exchanger (3) is a part of pipeline between a liquid storage tank (4) and an evaporator (5) of the air conditioning unit;
and the second refrigerant pipeline is laid on the plate heat exchanger (3), the first end of the second refrigerant pipeline is arranged on the pipeline between the liquid storage tank (4) and the plate heat exchanger (3), and the second end of the second refrigerant pipeline is connected with the compressor (6).
3. The heat dissipation system according to claim 2, wherein the second refrigerant pipeline and the compressor (6) include a first branch and a second branch, first ends of the first branch and the second branch are both disposed on a pipeline between the plate heat exchanger (3) and the compressor (6), and second ends of the first branch and the second branch are both connected to an air supplement port of the compressor (6); the second heat dissipation pipeline is a part of the first branch pipeline.
4. The heat dissipating system of claim 3, wherein the subcooling structure further comprises:
the throttling device (9) is positioned on the second refrigerant pipeline between the liquid storage tank (4) and the plate type heat exchanger (3);
a first control valve (7) located on the first branch;
a second control valve (8) located on the second branch.
5. An air conditioning assembly, comprising:
a drive plate;
the heat dissipating system of any of claims 1-4, configured to dissipate heat from said driver board.
6. An air conditioning unit control method applied to the air conditioning unit according to claim 5, the method comprising:
detecting the current temperature of the air conditioning unit driving plate; the heat dissipation system is used for dissipating heat for the driving board;
acquiring a preset temperature;
controlling the operation of a heat dissipation system according to the current temperature and the preset temperature;
controlling the operation of the heat dissipation system according to the current temperature and the preset temperature, comprising:
when the current temperature T1 is less than or equal to the preset temperature T2-a first temperature difference delta T1, controlling the conduction of a second branch of the supercooling structure;
when the preset temperature T2-first temperature difference delta T1 is smaller than the current temperature T1 and smaller than or equal to the preset temperature T2, controlling the conduction of a first branch of the supercooling structure;
the first ends of the first branch and the second branch are arranged on a pipeline between the plate heat exchanger (3) and the compressor (6), and the second ends of the first branch and the second branch are connected with an air supplementing port of the compressor (6).
7. The method of claim 6, further comprising, after controlling the first branch of the subcooling structure to conduct:
re-detecting the current temperature;
when the preset temperature T2-a second temperature difference delta T2 is less than or equal to the current temperature T1 is less than or equal to the preset temperature T2-a first temperature difference delta T1, controlling the first branch and the second branch of the supercooling structure to be conducted; wherein the first temperature difference Δ T1 is less than the second temperature difference Δ T2.
8. The method of claim 7,
controlling the conduction of the second branch of the subcooling structure comprises: controlling the first control valve to be closed and controlling the second control valve to be communicated;
controlling the first branch of the subcooling structure to be conductive, including: controlling the second control valve to be closed and controlling the first control valve to be communicated;
controlling the first branch and the second branch of the subcooling structure to conduct, including: and controlling the first control valve to be conducted and controlling the second control valve to be conducted.
9. A storage medium containing computer-executable instructions for performing the air conditioning pack control method of any of claims 6 to 8 when executed by a computer processor.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759193A (en) * | 2018-06-20 | 2018-11-06 | 广东美的暖通设备有限公司 | Air-conditioning system and its refrigerant radiator and method |
| CN108826766A (en) * | 2018-04-28 | 2018-11-16 | 珠海格力电器股份有限公司 | A kind of air-conditioning system and its control method |
| CN110762642A (en) * | 2019-10-09 | 2020-02-07 | 青岛海尔空调电子有限公司 | Outdoor heat exchanger, air conditioning system and control method thereof |
| CN112032919A (en) * | 2020-09-10 | 2020-12-04 | 四川长虹空调有限公司 | Refrigerant cooling and condensation preventing control method for air conditioner variable frequency drive board |
| CN112682985A (en) * | 2020-12-18 | 2021-04-20 | 珠海格力电器股份有限公司 | Heat dissipation system for driving module, air conditioner and control method |
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2021
- 2021-07-28 CN CN202110859916.2A patent/CN113573558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826766A (en) * | 2018-04-28 | 2018-11-16 | 珠海格力电器股份有限公司 | A kind of air-conditioning system and its control method |
| CN108759193A (en) * | 2018-06-20 | 2018-11-06 | 广东美的暖通设备有限公司 | Air-conditioning system and its refrigerant radiator and method |
| CN110762642A (en) * | 2019-10-09 | 2020-02-07 | 青岛海尔空调电子有限公司 | Outdoor heat exchanger, air conditioning system and control method thereof |
| CN112032919A (en) * | 2020-09-10 | 2020-12-04 | 四川长虹空调有限公司 | Refrigerant cooling and condensation preventing control method for air conditioner variable frequency drive board |
| CN112682985A (en) * | 2020-12-18 | 2021-04-20 | 珠海格力电器股份有限公司 | Heat dissipation system for driving module, air conditioner and control method |
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