CN113339906B - Cold accumulation type air conditioning fan and control method thereof - Google Patents
Cold accumulation type air conditioning fan and control method thereof Download PDFInfo
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- CN113339906B CN113339906B CN202110586416.6A CN202110586416A CN113339906B CN 113339906 B CN113339906 B CN 113339906B CN 202110586416 A CN202110586416 A CN 202110586416A CN 113339906 B CN113339906 B CN 113339906B
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention relates to the technical field of household appliances, and provides a cold accumulation type air conditioning fan and a control method thereof, wherein the cold accumulation type air conditioning fan comprises a heat exchange tube, a plurality of cold accumulation modules and a controller; the heat exchange tube is positioned in a heat exchange air duct of the air-conditioning fan, the cold accumulation module comprises a cold accumulation tube and a cold accumulation unit, the cold accumulation unit is positioned on the periphery of the cold accumulation tube, an inlet of the cold accumulation tube is communicated with an outlet of the heat exchange tube, and an outlet of the cold accumulation tube is communicated with an inlet of the heat exchange tube to form a closed refrigerant circulation pipeline; the cold accumulation capacity of the cold accumulation modules is different and is connected with the heat exchange tube in a mutual parallel mode, the heat exchange tube is communicated with each cold accumulation tube to be provided with a flow regulating valve, and the controller is in signal connection with the flow regulating valve and used for regulating the opening degree of the flow regulating valve. The refrigerant of this cold accumulation formula air cooler recycles in confined refrigerant circulation pipeline, need not to change, can not increase the air relative humidity of environment, the breed of reducible bacterium to the realization is to more accurate and more nimble control of indoor ambient temperature.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a cold accumulation type air conditioning fan and a control method thereof.
Background
Due to the factors of price, occupied space, mobility, energy conservation and the like, more and more users choose to purchase an air conditioning fan to replace an air conditioner to adjust the indoor temperature. The existing air-conditioning fan comprises a water tank and a fan, when the air-conditioning fan is used, an ice box is placed in the water tank to supply water and cool, and then water is conveyed to a water-absorbing fiber evaporator through a water pump. The wind blown out by the fan passes through the water absorption fiber evaporator, and takes away the heat of the air by utilizing the principle of water evaporation and heat absorption, thereby achieving the effect of blowing out cool wind.
However, the air conditioning fan in the related art has the following problems: the water quantity is gradually consumed, water needs to be added frequently, and the use is inconvenient; the relative humidity of air is high in summer, and the principle of the air conditioning fan is that flowing air is humidified by using water with low temperature, so that the relative humidity of the air is too high, a human body feels uncomfortable, and furniture or clothes are easily affected with damp and mildewed; the water tank needs to be cleaned frequently, otherwise the bacteria are easy to breed, and then the bacteria are blown into the air to influence the health of human bodies.
Disclosure of Invention
The invention provides a cold accumulation type air conditioning fan and a control method thereof, which are used for solving the problems that the air conditioning fan in the prior art is inconvenient to use, is easy to breed bacteria and is easy to cause overhigh relative humidity of indoor air.
The invention provides a cold accumulation type air conditioning fan, which comprises a heat exchange tube, a plurality of cold accumulation modules and a controller, wherein the heat exchange tube is connected with the cold accumulation modules; the heat exchange tube is positioned in a heat exchange air duct of the air conditioner fan, the cold accumulation module comprises a cold accumulation tube and a cold accumulation unit, the cold accumulation unit is positioned on the periphery of the cold accumulation tube, an inlet of the cold accumulation tube is communicated with an outlet of the heat exchange tube, and an outlet of the cold accumulation tube is communicated with an inlet of the heat exchange tube to form a closed refrigerant circulation pipeline;
a plurality of the cold accumulation capacity of the cold accumulation module is different and is connected with the heat exchange tube in a mutual parallel mode, the heat exchange tube is connected with each cold accumulation tube, a flow regulating valve is arranged on the communicating tube of the cold accumulation tube, and the controller is connected with the flow regulating valve through signals and is used for regulating the opening degree of the flow regulating valve.
The cold accumulation type air conditioner fan further comprises a temperature sensor, wherein the temperature sensor is used for detecting indoor environment temperature, and the temperature sensor is in communication connection with the controller.
According to the cold accumulation type air conditioning fan provided by the invention, the outlet of the heat exchange tube is communicated with the inlet of the cold accumulation tube through the air tube, and the air tube is obliquely arranged.
The invention also provides a control method of any one of the cold accumulation type air conditioning fans, which comprises the following steps:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and controlling to open at least one flow regulating valve according to the indoor ambient temperature and the target temperature so as to start at least one cold accumulation module, and regulating the opening degree of the flow regulating valve in an open state.
According to the control method of the cool storage type air conditioning fan provided by the invention, the control of opening at least one flow regulating valve to start at least one cool storage module and regulating the opening degree of the flow regulating valve in an opening state according to the indoor environment temperature and the target temperature comprises the following steps:
calculating a first temperature difference value delta t1 between the target temperature and the indoor environment temperature, and determining a temperature preset interval in which the first temperature difference value delta t1 falls;
and determining the flow regulating valve needing to be opened according to the falling temperature preset interval, and determining the opening degree of the flow regulating valve in an opening state.
According to the control method of the cool storage type air conditioner fan provided by the invention, after the opening degree of the flow regulating valve in the opening state is regulated according to the falling temperature preset interval, the control method further comprises the following steps:
calculating a second temperature difference value delta t2 between the indoor environment temperature after the first preset time length and the indoor environment temperature before the first preset time length at intervals of the first preset time length by taking the first preset time length as a period;
and determining whether the opening degree of the flow regulating valve in the opening state needs to be regulated according to the comparison result of the second temperature difference value delta t2 and a preset temperature value.
According to the control method of the cold accumulation type air conditioner fan, whether the opening degree of the flow regulating valve in the opening state needs to be regulated or not is determined according to the comparison result of the second temperature difference value delta t2 and the preset temperature value and the preset temperature interval in which the first temperature difference value delta t1 falls.
According to the control method of the cold accumulation type air conditioner fan provided by the invention, the cold accumulation type air conditioner fan comprises a first cold accumulation module and a second cold accumulation module, a first flow regulating valve is arranged on a communication pipeline between the heat exchange tube and the first cold accumulation module, and a second flow regulating valve is arranged on a communication pipeline between the heat exchange tube and the second cold accumulation module; the preset temperature value comprises a first preset temperature value and a second preset temperature value, and the control method of the cold storage type air conditioning fan comprises the following steps:
when the first preset difference value is less than delta t1 and not more than a second preset difference value, opening at least one of the first flow regulating valve and the second flow regulating valve, if delta t2 is greater than the first preset temperature value, maintaining the opening degree of the flow regulating valve, otherwise, increasing the opening degree of the flow regulating valve in an opening state;
when the delta t1 is smaller than or equal to a first preset difference value, only one of the first flow regulating valve and the second flow regulating valve is opened, if the delta t2 is larger than a second preset temperature value, the opening degree of the flow regulating valve in an opening state is reduced, otherwise, the opening degree of the flow regulating valve is maintained; wherein the first preset temperature value is greater than or equal to the second preset temperature value, and the first preset difference value is greater than 0 ℃.
According to the control method of the cool storage type air conditioning fan provided by the invention, the cool storage capacity of the first cool storage module is larger than that of the second cool storage module, and the control method of the cool storage type air conditioning fan comprises the following steps:
when the temperature is more than 0 ℃ and less than or equal to delta t1 and less than or equal to a first preset difference value, only opening the first flow regulating valve;
when Δ t1 < 0 ℃, only the second flow rate adjustment valve is opened.
According to the control method of the cold storage type air conditioner fan provided by the invention, when a first preset difference value is less than delta t1 and less than or equal to a second preset difference value, only one of the first flow regulating valve and the second flow regulating valve is opened, and the opening degree of the flow regulating valve in the opening state is increased while the other flow regulating valve is opened.
The control method of the cool storage type air conditioner fan provided by the invention further comprises the following steps:
the preset temperature values further comprise a third preset temperature value, when the delta t1 is larger than a second preset difference value, at least one of the first flow regulating valve and the second flow regulating valve is opened, if the delta t2 is larger than the third preset temperature value, the opening degree of the flow regulating valve is maintained, and otherwise, the opening degree of the flow regulating valve in an opening state is increased;
or when the air conditioner fan is started, only one of the first flow regulating valve and the second flow regulating valve is opened, the initial opening degree is the maximum opening degree, and when the delta t1 is larger than a second preset difference value, the maximum opening degree of the flow regulating valve in the opening state is maintained.
According to the control method of the cold accumulation type air conditioning fan provided by the invention, if delta t1 is still larger than a second preset difference value after a second preset time length after the maximum opening degree of the flow regulating valve which is kept in the opening state, the other flow regulating valve is opened to the set opening degree;
and if the delta t1 is still greater than a second preset difference value after the third preset time period after the other flow regulating valve is opened to the set opening degree, regulating the other flow regulating valve to the maximum opening degree.
The invention provides a cold accumulation type air conditioning fan and a control method thereof. And cooling the refrigerant in the refrigerant circulation pipeline by using a cold storage unit in the cold storage module. The refrigerant can be recycled in the closed refrigerant circulation pipeline without replacement, so that the inconvenience that the traditional air-conditioning fan needs to change water frequently is avoided. The relative humidity of the air in the environment cannot be increased, and the user experience is improved. The water tank does not need to be cleaned, so that the breeding of bacteria can be reduced, and the damage to the health of a human body is reduced. In addition, a plurality of cold accumulation modules with different cold accumulation capacities are connected in parallel, and the flow of the refrigerant entering each cold accumulation module is adjusted through the opening degree of the corresponding flow adjusting valve, so that more accurate and more flexible control of the indoor environment temperature can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a cool storage type air conditioning fan provided by the present invention;
fig. 2 is a schematic flow chart of a control method of a cool storage type air conditioning fan provided by the invention;
FIG. 3 is a schematic physical structure diagram of an electronic device provided by the present invention;
reference numerals are as follows:
1. a heat exchange tube; 2. A cold storage module; 201. A first cold storage module;
202. a second cold storage module; 21. A cold storage tube; 22. A cold storage unit;
23. a box body; 3. A housing; 41. A first shut-off valve;
42. a second stop valve; 51. A first flow regulating valve; 52. A second flow regulating valve;
6. a water pan; 7. A drain pipe; 8. The trachea.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "first", "second", "third" and "fourth" are used for the sake of clarity in describing the numbering of the product parts and do not represent any substantial difference, unless explicitly stated or limited otherwise. Specific meanings of the above terms in the embodiments of the present invention may be understood by those of ordinary skill in the art according to specific situations. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The cool storage type air conditioning fan and the control method thereof according to the present invention will be described with reference to fig. 1 to 2.
Fig. 1 is a schematic structural view of a cool storage type air conditioning fan according to the present invention. The cold accumulation type air conditioning fan provided by the invention comprises a heat exchange tube 1, a plurality of cold accumulation modules 2 and a controller. The heat exchange tube 1 is positioned in a heat exchange air duct of the air conditioner fan. The cold storage module 2 includes a cold storage tube 21 and a cold storage unit 22, and the cold storage unit 22 is located at the outer periphery of the cold storage tube 21. The inlet of the cold accumulation tube 21 is communicated with the outlet of the heat exchange tube 1, and the outlet of the cold accumulation tube 21 is communicated with the inlet of the heat exchange tube 1, so as to form a closed refrigerant circulation pipeline.
The cold accumulation capacities of the cold accumulation modules 2 are different and are connected with the heat exchange tube 1 in a parallel connection mode, the heat exchange tube 1 and each cold accumulation tube 21 are communicated with each other to form a flow regulating valve, and the controller is connected with the flow regulating valve in a signal mode and used for regulating the opening degree of the flow regulating valve. Namely, the controller is used for respectively controlling the flow regulating valves corresponding to the plurality of cold accumulation modules 2. The flow regulating valve is an electromagnetic flow regulating valve, such as an electronic expansion valve. When a certain cold accumulation module 2 needs to be started, the corresponding flow regulating valve is opened; when one cold accumulation module 2 needs to be closed, the corresponding flow regulating valve is closed, that is, the opening degree of the flow regulating valve is 0. When the opening of a certain flow regulating valve is regulated, the flow of the refrigerant entering the corresponding cold accumulation module 2 is regulated.
For example, as shown in fig. 1, the cool storage type air conditioning fan includes a first cool storage module 201 and a second cool storage module 202, and the cool storage capacity of the first cool storage module 201 is greater than that of the second cool storage module 202. A first flow regulating valve 51 is arranged on a communication pipeline between the heat exchange tube 1 and the first cold accumulation module 201, and a second flow regulating valve 52 is arranged on a communication pipeline between the heat exchange tube 1 and the second cold accumulation module 202.
The cold storage unit 22 may be a bagged or boxed cold storage agent, such as ice crystal. The coolant can be taken out from the box body 23 independently and put into a refrigerator for freezing, so as to reduce the temperature and store the cold. When the air conditioning fan is used, the coolant is loaded into the case 23. The heat exchange tube 1 and the cold accumulation tube 21 can be both disc-shaped tubes or heat exchange tube bundles comprising a plurality of straight tubes so as to increase the heat exchange area of the refrigerant and the cold accumulation unit 22 and air. The heat exchange tube 1 and the cold storage tube 21 are made of materials with high heat conductivity coefficient, such as copper or stainless steel.
Specifically, the cool storage type air conditioning fan further includes a fan and a case 3. An air inlet and an air outlet are arranged on the shell 3, and the air inlet and the air outlet are communicated to form a heat exchange air channel. The fan is arranged in the heat exchange air duct and used for driving air to enter the shell 3 from the air inlet and flow out of the shell 3 from the air outlet after exchanging heat with the heat exchange tube 1. The fan can be selected from axial flow fan, centrifugal fan or cross flow fan.
Each of the cold storage modules 2 has a different number of cold storage units, so that a plurality of cold storage modules 2 different in cold storage capacity are obtained. The plurality of cold storage modules 2 are used as a cold storage device of the air conditioner fan as a whole. The plurality of cold accumulation modules 2 can obtain more cold accumulation devices with different cold accumulation capacities through different combinations. The flow control valve that each cold-storage module 2 corresponds is under the same aperture circumstances, and the great cold-storage module 2 of cold-storage capacity can play the temperature regulation effect by a relatively large margin, and the little cold-storage module 2 of cold-storage capacity can play the temperature regulation effect by a relatively small margin. Different quantities of cold accumulation modules 2 can be started according to the difference between the current indoor environment temperature and the target temperature, and the opening degree of the corresponding flow regulating valve is regulated, so that the indoor environment temperature can be regulated more accurately and flexibly.
When in use, the cold accumulation unit 22 can be taken out and put into refrigeration equipment such as a refrigerator for refrigeration, and then put into an air conditioning fan after the cold accumulation unit has enough cold quantity. The refrigerant in the cold storage tube 21 is cooled by the cold storage unit 22. After opening one or more flow regulating valves, the low-temperature refrigerant cooled by the activated cold accumulation module 2 flows out from the outlet of the cold accumulation pipe 21 and enters the heat exchange pipe 1. After the low-temperature refrigerant in the heat exchange tube 1 exchanges heat with the air flowing through the heat exchange tube 1, a high-temperature refrigerant with the temperature equivalent to the room temperature is formed and flows back to the cold accumulation module 2 to enter the next cycle. If the cooling capacity of the cold storage unit 22 is insufficient, the existing cold storage unit 22 is taken out to perform cold storage again or replaced by the cold storage unit 22 with sufficient cooling capacity, so that the cold storage effect is ensured.
The cold accumulation type air conditioning fan provided by the invention is provided with the cold accumulation module 2 and the closed refrigerant circulating pipeline. The refrigerant in the refrigerant circulation line is cooled by the cold storage unit 22 in the cold storage module 2. The refrigerant can be recycled in the closed refrigerant circulation pipeline without replacement, so that the inconvenience that the traditional air-conditioning fan needs to change water frequently is avoided. The relative humidity of the air in the environment cannot be increased, and the user experience is improved. The water tank does not need to be cleaned, so that the breeding of bacteria can be reduced, and the damage to the health of a human body is reduced. In addition, a plurality of cold accumulation modules 2 with different cold accumulation capacities are connected in parallel, and the refrigerant flow entering each cold accumulation module 2 is adjusted through the opening degree of the corresponding flow adjusting valve, so that more accurate and more flexible control on the indoor environment temperature can be realized.
The cold accumulation type air conditioner fan further comprises a temperature sensor, the temperature sensor is in communication connection with the controller, and the temperature sensor is used for detecting indoor environment temperature. The controller determines the flow of the refrigerant entering the heat exchange tube 1 according to the detected indoor environment temperature and the target temperature set by the user, and then adjusts the opening of each flow adjusting valve according to the refrigerant flow.
The opening of the flow regulating valve has a certain corresponding relation with the flow of the refrigerant flowing through the flow regulating valve and the indoor environment temperature. And determining the opening degree of the flow regulating valve according to the corresponding relation and the current indoor environment temperature. For example, when it is sensed that the indoor ambient temperature is lower than the target temperature, the opening degree of the flow rate regulation valve is decreased; when sensing that indoor ambient temperature is higher than the target temperature, increase flow control valve's aperture to guarantee that indoor ambient temperature is stable near the target temperature.
In one embodiment of the present invention, as shown in fig. 1, the cold storage module 2 is located above the heat exchange tube 1. The refrigerant in the cold storage tube 21 is condensed into a low-temperature liquid refrigerant by the cold storage unit 22. The low-temperature liquid refrigerant flows into the heat exchange tube 1 below the cold accumulation module 2 under the action of gravity. The fan drives indoor high-temperature air to pass through the heat exchange tube 1 and exchange heat with liquid refrigerants in the heat exchange tube 1, and then the low-temperature liquid refrigerants are converted into high-temperature gaseous refrigerants and flow back to the cold accumulation module 2. The refrigerant returning to the cold accumulation module 2 is re-condensed into a low-temperature liquid refrigerant, and the process is repeated. The refrigerant converts gaseous refrigerant into after exchanging heat with the air, through setting up cold-storage module 2 in the top of heat exchange tube 1 for at the whole cyclic process of refrigerant, need not to realize the autonomous cycle of refrigerant with the help of pumping device, noiselessness and energy can be saved.
Further, the outlet of the heat exchange tube 1 is communicated with the inlet of the cold accumulation tube 21 through the gas tube 8, the inlet of the heat exchange tube 1 is communicated with the outlet of the cold accumulation tube 21 through the liquid tube, and the gas tube 8 is obliquely arranged or the gas tube 8 and the liquid tube are obliquely arranged. The gaseous refrigerant is condensed into liquid refrigerant when rising in the air pipe 8 from the heat exchange pipe 1, the liquid refrigerant flows downwards in the air pipe 8 due to the action of gravity, interference is generated with the flow of the rising gaseous refrigerant, the temperature of the rising gaseous refrigerant is further reduced, and even the air pipe 8 is blocked, so that the high-temperature gaseous refrigerant cannot rise.
The trachea 8 that this embodiment set up through the slope can make the liquid refrigerant of condensation along the pipe wall landing of trachea 8 fall back to heat exchange tube 1 in, can not seriously influence the temperature of high temperature gaseous state refrigerant, can not cause trachea 8 to block up simultaneously. Optionally, the inclination angle between the air tube 8 and the horizontal plane is less than 70 degrees, which ensures that the air tube 8 has a certain inclination angle so that the condensed water flows down along the inclined air tube 8.
It should be noted that the inclination angle described in this embodiment refers to a minimum included angle between the air tube 8 and the horizontal plane. The air pipe 8 can be inclined in various inclination modes, and when the air pipe 8 is in a non-linear shape, all the air pipes which ensure that the circulating pipeline in the air pipe 8 is obliquely arranged with the horizontal plane fall into the protection range defined by the invention.
Further, the cool storage type air conditioning fan further includes a pump (not shown). If the refrigerant is still in a liquid state after heat exchange with air, the circulating power of the refrigerant in the refrigerant circulating pipeline can be provided by the pump. Alternatively, a pump is installed between the outlet of each cold storage tube 21 and the inlet of the heat exchange tube 1, and the inlet of the pump is connected to the outlet of each cold storage tube 21, and the outlet of the pump is connected to the inlet of the heat exchange tube 1, so as to ensure that the pump is in the circulation line of the liquid refrigerant.
In another embodiment of the present invention, the cold storage module 2 is located below the heat exchange tube 1. The circulating power of the refrigerant in the refrigerant circulating pipeline is provided by the pump. The cold accumulation module 2 is arranged below the heat exchange tube 1, so that the position of a heat exchange area where the heat exchange tube 1 of the air conditioner fan is located is higher, and the air outlet can be arranged right opposite to the heat exchange area. Therefore, the height of the air outlet can be increased, and the influence on user experience caused by the fact that cold air is in a low-level position due to too low air outlet position is avoided; the length of the air channel between the fan and the air outlet can be reduced to reduce the loss of cold energy of the air after heat exchange.
In the embodiment of the invention, a communication pipeline between the heat exchange tube 1 and each cold storage tube 21 is provided with a stop valve. For example, a first stop valve 41 is disposed on a communication pipeline between the heat exchange tube 1 and the first cold storage module 201, and a second stop valve 42 is disposed on a communication pipeline between the heat exchange tube 1 and the second cold storage module 202. When a certain cold accumulation module 2 needs to be closed, the cold storage unit 22 is replaced less times by closing the corresponding stop valve to prevent the cold medium from continuously flowing to cause cold loss.
Optionally, the stop valve is an electronic stop valve, and the controller is in signal connection with the stop valve. Alternatively, a shutoff valve is installed between the outlet of the heat exchange tube 1 and the inlet of the cold storage module 2. The air conditioner is used for preventing the gasified refrigerant from continuously flowing back to the cold accumulation module 2 after the cold accumulation type air conditioner fan is closed, so as to prevent the loss of the cold energy of the cold accumulation unit 22.
In the embodiment of the invention, the cold storage module 2 comprises a box body 23, the cold storage unit 22 and the cold storage tube 21 are both located in the box body 23, and both ends of the cold storage tube 21 are respectively connected with the side wall of the box body 23. Specifically, the side wall of the box body 23 is provided with an inlet pipe orifice and an outlet pipe orifice. The outlet of the heat exchange tube 1 is communicated with the inlet of the cold accumulation tube 21 through a tube inlet, and the inlet of the heat exchange tube 1 is communicated with the outlet of the cold accumulation tube 21 through a tube outlet. The inlet of the cold accumulation tube 21 is fixed on the inlet tube mouth, and the outlet of the cold accumulation tube 21 is fixed on the outlet tube mouth. The plurality of cold storage units 22 are placed around the cold storage tubes 21. Alternatively, both ends of the cold storage tube 21 respectively penetrate through the side wall of the box body 23 to be connected with the heat exchange tube 1, or both ends of the heat exchange tube 1 respectively penetrate through the side wall of the box body 23 to be connected with the cold storage tube 21. The cold accumulation tube 21 and the heat exchange tube 1 can be an integrated pipeline or can be a separated and detachable pipeline.
Furthermore, the side wall of the box body 23 is provided with a heat insulation layer to form a heat insulation box, so that the heat exchange between the cold accumulation unit 22 in the box body 23 and the external environment is reduced, and the cold energy is saved.
In the embodiment of the invention, the cold accumulation type air conditioning fan further comprises a water receiving disc 6. The water pan 6 is positioned below the heat exchange tube 1. When the surface temperature of the heat exchange pipe 1 is lower than the indoor air temperature, the surface of the heat exchange pipe 1 generates condensed water. The water-receiving tray 6 is used for receiving the condensed water flowing down from the heat exchange pipe 1. The drip tray 6 is made of a rust-resistant material, such as a stainless steel tray.
Further, the cool storage type air conditioning fan further includes a drain pipe 7. The drain pipe 7 is communicated with the water pan 6. Specifically, a drain hole is formed in the bottom of the water pan 6, and the drain pipe 7 is connected with the drain hole. The condensed water is discharged to the outside of the air-conditioning fan through the drain pipe 7.
In the embodiment of the present invention, the number of the heat exchange tubes 1 is plural, and the plural heat exchange tubes 1 are arranged in a criss-cross manner. Specifically, two ends of each heat exchange tube 1 are respectively communicated with two ends of the cold accumulation tube 21, so that the low-temperature refrigerant enters the plurality of heat exchange tubes 1 at the same time. The plurality of heat exchange tubes 1 are arranged in a staggered manner to increase the heat exchange area and the heat exchange efficiency of the air and the heat exchange tubes 1.
The invention also provides a control method of the cool storage type air conditioning fan, and fig. 2 is a flow schematic diagram of the control method of the cool storage type air conditioning fan provided by the invention. The control method of the cold accumulation type air conditioning fan comprises the following steps:
s100, after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and S200, controlling to open at least one flow regulating valve according to the indoor environment temperature and the target temperature so as to start at least one cold accumulation module, and regulating the opening degree of the flow regulating valve in an open state.
The indoor environment temperature can be detected through the temperature sensor, and the target temperature is the indoor environment temperature which is manually set by a user and needs to be achieved. The plurality of cold storage modules 2 having different cold storage capacities can be combined to form a plurality of cold storage devices having different cold storage capacities. In the operation process of the air conditioning fan, the controller can selectively start the designated cold accumulation module 2 purposefully according to the indoor environment temperature and the target environment temperature, the flow regulating valve corresponding to the started cold accumulation module 2 is in the opening state, the opening degree of the flow regulating valve in the opening state is regulated, and the flexible and accurate control of the indoor environment temperature is realized.
The larger the opening degree of the flow rate adjusting valve is, the more the cooling energy flows into the heat exchange tube 1 from the cold storage tube 21 is, and the higher the cooling capacity is. For example, when the indoor environment temperature is high, the opening degree of the flow regulating valve in the open state is increased; when the indoor environment temperature is low, the opening degree of the flow regulating valve in the opening state is reduced.
Optionally, the controlling, according to the indoor ambient temperature and the target temperature, to open at least one of the flow rate adjustment valves to activate at least one of the cold storage modules and to adjust the opening degree of the flow rate adjustment valve in the open state in step S200 includes:
s210, calculating a first temperature difference value delta t1 between the target temperature and the indoor environment temperature, and determining a temperature preset interval in which the first temperature difference value delta t1 falls. The first temperature difference Δ t1 is a value obtained by subtracting the target temperature from the indoor ambient temperature.
And S220, determining the flow regulating valve needing to be opened according to the falling temperature preset interval, and determining the opening degree of the flow regulating valve in an opening state.
The following embodiment takes two cold accumulation modules 2 as an example to illustrate the control method of the cold accumulation type air conditioning fan provided by the invention. The cool storage type air conditioning fan comprises a first cool storage module 201 and a second cool storage module 202, wherein the cool storage capacity of the first cool storage module 201 is greater than that of the second cool storage module 202. A first flow regulating valve 51 is arranged on a communication pipeline between the heat exchange tube 1 and the first cold accumulation module 201, and a second flow regulating valve 52 is arranged on a communication pipeline between the heat exchange tube 1 and the second cold accumulation module 202. The two cold accumulation modules 2 with different cold accumulation capacities can be combined into three cold accumulation devices with different cold accumulation capacities. The control strategies of three or more cold storage modules 2 can be derived by referring to the control strategies of two cold storage modules 2 in the same manner, and all the strategies belong to the protection scope defined by the invention.
For example, the preset interval has four B1, B2, B3 and B4. When the air conditioner fan is started, two cold accumulation modules are started by default. B1 is greater than 5 deg.c (excluding 5 deg.c), and the first flow rate adjustment valve 51 and the second flow rate adjustment valve 52 each have a corresponding opening value of p20+ 50. B2 is 2 to 5 ℃ (excluding 2 ℃, including 5 ℃), and the first flow quantity adjustment valve 51 and the second flow quantity adjustment valve 52 both have opening values of p20+ 20. B3 is 0 to 2 ℃ (excluding 0 ℃, including 2 ℃), only the first cold storage module 201 is activated, and the first flow rate adjustment valve 51 corresponds to the opening value p10+ 20. B4 is less than 0 ℃, only the second cold accumulation module 202 is started, and the second flow regulating valve 52 corresponds to the opening value p 20-10. Here, the opening values p10 and p20 refer to initial opening degrees of the first flow rate adjustment valve 51 and the second flow rate adjustment valve 51, respectively, at the time of turning on the air conditioner fan.
When the calculated first temperature difference value delta t1 falls into the B1 interval, the two flow regulating valves are controlled to operate at the opening degree of p10+50, so that the low-temperature refrigerant in the cold storage tube 21 enters the heat exchange tube 1 with larger circulation, and the refrigeration effect of the air conditioner fan is improved. When the calculated first temperature difference Δ t1 falls within the B2 interval, it indicates that the difference between the indoor ambient temperature and the target temperature is not large, and at this time, the opening degrees of the two flow rate adjusting valves are reduced to reduce the flow rate of the low-temperature refrigerants in the two cold storage tubes 21 entering the heat exchange tube 1, and reduce the drop speed of the indoor ambient temperature. When the calculated first temperature difference Δ t1 falls within the B3 range, the indoor ambient temperature further approaches the target temperature, and at this time, the second cold storage module 202 with the smaller cold storage capacity is controlled to be closed, so that the falling speed of the indoor ambient temperature is further reduced. When the calculated first temperature difference value delta t1 falls into the interval B4, the indoor environment temperature is lower than the target temperature, at the moment, the first cold accumulation module 201 with the larger cold accumulation capacity is controlled to be closed, the second cold accumulation module 202 with the smaller cold accumulation capacity is started, and meanwhile, the second flow regulating valve 52 is controlled to operate at the opening of p10-10, so that the flow of low-temperature refrigerants in the cold accumulation device entering the heat exchange tube 1 is further reduced, and the indoor environment temperature is maintained at about the target temperature.
Alternatively, when the air conditioner fan is turned on, only the first cold storage module 201 is enabled by default. For example, B1 is greater than 5 ℃ (excluding 5 ℃), and the first flow quantity adjustment valve 51 corresponds to the opening degree value p10+50, and the second flow quantity adjustment valve 52 is opened only when a certain condition is satisfied. B2 is 2 to 5 ℃ (excluding 2 ℃, including 5 ℃), and the first flow rate adjustment valve 51 corresponds to the opening value p10, and the second flow rate adjustment valve 52 is opened only when a certain condition is satisfied. B3 is 0 to 2 ℃ (excluding 0 ℃, including 2 ℃), only the first cold storage module 201 is activated, and the first flow rate adjustment valve 51 corresponds to the opening value p 10. B4 is less than 0 ℃, only the second cold accumulation module 202 is started, and the second flow regulating valve 52 corresponds to the opening value p 10-10. Similarly, when the air conditioner fan is turned on, only the second cold storage module 202 may be turned on by default, and the control strategy thereof may refer to the above embodiments, which are not described herein again.
On the basis of the above embodiment, after the opening degree of the flow rate regulation valve in the open state is regulated according to the preset temperature interval in which the first temperature difference Δ t1 falls, the method further includes the following steps:
s310, with a first preset time period as a period, calculating a second temperature difference value delta t2 between the indoor environment temperature after the first preset time period and the indoor environment temperature before the first preset time period at intervals of the first preset time period;
and S320, determining whether the opening degree of the flow regulating valve in the opening state needs to be regulated or not according to the comparison result of the second temperature difference value delta T2 and the preset temperature value T.
The second temperature difference Δ t2 is a value obtained by subtracting the indoor ambient temperature after the first preset time period from the indoor ambient temperature before the first preset time period. The second temperature difference value delta T2 represents the temperature drop speed in the first preset time period, and when the second temperature difference value delta T2 is larger than a preset temperature value T, the faster the temperature drop speed is, the obvious refrigeration effect is achieved; when the second temperature difference value Δ T2 is smaller than the preset temperature value T, it indicates that the slower the falling speed is, the slower the cooling effect is. In this embodiment, the current refrigeration effect is determined every first preset time interval, and then the opening degree of the flow regulating valve in the open state is further adjusted according to the refrigeration effect.
For example, after the opening degree of the flow regulating valve is adjusted according to the preset temperature interval in which the first temperature difference Δ T1 falls, the first preset time period is taken as 5min, every 5min interval, a second temperature difference Δ T2 between the indoor ambient temperature after 5min and the indoor ambient temperature before 5min is calculated, whether the second temperature difference Δ T2 is greater than a preset temperature value T is judged, and the preset temperature value T can be a fixed value of 3 ℃. If the second temperature difference delta t2 is larger than 3 ℃, the heating effect of the air conditioner fan is obvious; if the second temperature difference value delta t2 is less than or equal to 3 ℃, the heating effect of the air conditioner fan is not obvious.
In the embodiment of the invention, whether the opening degree of the flow regulating valve in the opening state is regulated or not is determined according to the comparison result of the second temperature difference value delta T2 and the preset temperature value T. For example, when the cooling effect is good, the current opening degree of the flow regulating valve is maintained; otherwise, the opening degree of the flow rate regulating valve in the open state is increased.
For another example, it is determined whether the opening degree of the flow rate adjustment valve in the open state needs to be adjusted according to the comparison result between the second temperature difference Δ T2 and the preset temperature value T and the preset temperature interval into which the first temperature difference Δ T1 falls. And different temperature preset intervals represent the degree that the current indoor environment temperature is higher than the target temperature.
When the temperature of the preset temperature interval in which the first temperature difference value delta t1 falls is higher, if the cooling effect is obvious, the opening degree of the current flow regulating valve can be maintained so as to keep the current cooling speed; if the cooling effect is not obvious, the opening degree of the flow regulating valve is increased so as to improve the cooling speed. When the temperature of the temperature preset interval in which the first temperature difference value delta t1 falls is low, if the cooling effect is obvious, the opening degree of the flow regulating valve is properly reduced to reduce the cooling speed, so that the indoor environment temperature can be prevented from being lower than the target temperature after the first preset time, and the accurate control of the temperature is facilitated; if the cooling effect is not obvious, the opening degree of the current flow regulating valve is kept.
Specifically, the preset temperature value T includes a first preset temperature value T1 and a second preset temperature value T2, and in step S320, according to a comparison result between the second temperature difference Δ T2 and the preset temperature value T and a preset temperature interval in which the first temperature difference Δ T1 falls, it is determined whether the opening degree of the flow rate adjustment valve in the open state needs to be adjusted, including:
s321, when the first preset difference is less than or equal to the delta T1 and less than or equal to the second preset difference, opening at least one of the first flow regulating valve 51 and the second flow regulating valve 52, and if the delta T2 is greater than the first preset temperature value T1, maintaining the opening degree of the flow regulating valves; otherwise, the opening degree of the flow regulating valve in the open state is increased. For example, the opening degree of the flow rate regulation valve in the open state is increased by a first preset opening degree amplitude.
S322, when the delta T1 is less than or equal to a first preset difference value, only one of the first flow regulating valve 51 and the second flow regulating valve 52 is opened, and if the delta T2 is greater than a second preset temperature value T2, the opening degree of the flow regulating valve in an opening state is reduced; otherwise, maintaining the opening degree of the flow regulating valve; the first preset temperature value T1 is greater than or equal to the second preset temperature value T2, and the first preset difference is greater than 0 ℃.
When the delta t1 is less than or equal to a first preset difference, the indoor environment temperature is higher than the target temperature to a lower degree than that when the first preset difference is less than the delta t1 and less than or equal to a second preset difference. In the embodiment, the second preset temperature value T2 is not less than the first preset temperature value T1, the first preset difference value is not less than Δ T1, and the opening degree of the flow regulating valve in the open state is reduced when the Δ T2 is greater than the second preset temperature value T2, so that more accurate control over the indoor environment temperature can be realized, the indoor environment temperature is controlled to accurately reach the target temperature, and the indoor environment temperature is prevented from fluctuating repeatedly near the target temperature. When the first preset difference value is less than or equal to the second preset difference value of delta T1 and the delta T2 is not greater than the second preset temperature value T2, the opening degree of the flow regulating valve in the opening state is increased, and the falling speed of the indoor environment temperature can be accelerated.
Further, when the temperature is higher than 0 ℃ and is less than or equal to the delta T1 and is less than or equal to a first preset difference value, if the delta T2 is greater than a fourth preset temperature value T4, the opening degree of the flow regulating valve in the opening state is reduced according to a fourth preset opening degree amplitude value; otherwise, the opening degree of the flow rate adjustment valve 5 is maintained. When the temperature is less than 0 ℃, if the temperature is more than a second preset temperature value T2, reducing the opening of the flow regulating valve in an open state according to a second preset opening amplitude value; otherwise, the opening degree of the flow rate adjustment valve 5 is maintained. The fourth preset temperature value T4 is greater than or equal to a second preset temperature value T2, and the fourth preset opening amplitude is less than or equal to the second preset opening amplitude and less than or equal to the first preset opening amplitude.
In an embodiment of the present invention, the cold storage capacity of the first cold storage module 201 is greater than that of the second cold storage module 202. When the temperature is higher than 0 ℃ and is less than or equal to the delta t1 and is less than or equal to a first preset difference value, only the first flow regulating valve 51 is opened, namely, only the first cold accumulation module 201 with stronger cold accumulation capacity is started. When Δ t1 is less than 0 ℃, only the second flow rate adjustment valve 52 is opened, i.e., only the second cold storage module 202 with the weak cold storage capacity is activated.
When the first preset difference value < Δ t1 is less than or equal to the second preset difference value, the first flow regulating valve 51 and the second flow regulating valve 52 can be selectively opened at the same time. Alternatively, only one of the first flow rate adjustment valve 51 and the second flow rate adjustment valve 52 is opened, and the other flow rate adjustment valve is also opened while increasing the opening degree of the flow rate adjustment valve in the opened state as described in step S321. Namely, when the first preset difference is less than or equal to the delta t1 and less than or equal to the second preset difference, one cold accumulation module 2 is started, when the delta t2 is not greater than the first preset temperature value, the refrigeration efficiency is low, and at the moment, the other cold accumulation module 2 is started, so that the refrigeration efficiency is improved.
In an embodiment of the present invention, the determining whether to adjust the opening degree of the flow rate adjustment valve in the open state according to the comparison result between the second temperature difference Δ T2 and the preset temperature value T and the preset temperature interval in which the first temperature difference Δ T1 falls further includes:
s323, the preset temperature value T further includes a third preset temperature value T3, when Δ T1 is greater than a second preset difference value, at least one of the first flow rate adjustment valve 51 and the second flow rate adjustment valve 52 is opened, and if Δ T2 is greater than the third preset temperature value T3, the opening degree of the flow rate adjustment valve is maintained; otherwise, the opening degree of the flow rate regulating valve in the open state is increased. For example, the opening of the flow regulating valve in the open state is increased by a third preset opening amplitude, and the third preset opening amplitude is larger than or equal to the first preset opening amplitude.
Optionally, the different preset temperature intervals correspond to different preset temperature values T, and the larger the temperature value corresponding to the preset temperature interval is, the smaller the preset temperature value T is. In this embodiment, the third preset temperature value T3 > the first preset temperature value T1 > the fourth preset temperature value T4 > the second preset temperature value T2 is taken, that is, the smaller the first temperature difference Δ T1 is, the higher the accuracy of the indoor environment temperature is controlled.
For example, the third preset temperature value T3, the first preset temperature value T1, the second preset temperature value T2 and the fourth preset temperature value T4 of the four preset temperature intervals B1, B2, B3 and B4 described in the above embodiments are 0.8 ℃, 0.5 ℃ and 0.3 ℃ respectively.
Optionally, when Δ t1 is greater than the first preset difference, the larger the temperature value corresponding to the temperature preset interval is, the larger the preset opening amplitude is, that is, the third preset opening amplitude is greater than the first preset opening amplitude. The larger the first temperature difference Δ T1 is, the faster the drop speed of the indoor ambient temperature is when the second temperature difference Δ T2 is greater than the preset temperature value T. When the delta t1 is smaller than or equal to the first preset difference, the larger the temperature value corresponding to the temperature preset interval is, the smaller the preset opening amplitude is, that is, the second preset opening amplitude is larger than the fourth preset opening amplitude. The smaller the first temperature difference value Δ T1 is, the more the drop speed of the indoor ambient temperature is slowed down to reach the target temperature more smoothly when the second temperature difference value Δ T2 is smaller than the preset temperature value T, and temperature fluctuation is reduced.
For example, the third preset opening amplitude value corresponding to each of the four temperature preset intervals B1, B2, B3 and B4 in the above embodiment is 10, the first preset opening amplitude value is 5, the fourth preset opening amplitude value is 10, and the second preset opening amplitude value is 20.
In another embodiment of the present invention, when the air conditioner fan is turned on, only one of the first flow regulating valve 51 and the second flow regulating valve 52 is opened, and the initial opening degree is the maximum opening degree; and when the delta t1 is larger than a second preset difference value, maintaining the maximum opening degree of the flow regulating valve in the opening state.
For example, when the air conditioner fan is turned on, only the second cold storage module 202 is turned on by default, and the initial opening degree of the second flow rate adjustment valve 52 is the maximum opening degree. For example, B1 is greater than 5 ℃ (excluding 5 ℃), the second flow rate adjustment valve 52 is maintained at the maximum opening degree to accelerate the drop speed of the indoor ambient temperature, and the second flow rate adjustment valve 52 may be re-opened under certain conditions. B2 is 2 to 5 c (excluding 2 c, including 5 c), the second flow rate adjustment valve 52 is maintained at the maximum opening degree to continue to accelerate the speed of decrease of the indoor ambient temperature, and the second flow rate adjustment valve 52 can be re-opened under the condition that a certain condition is satisfied. B3 is 0 to 2 ℃ (excluding 0 ℃ and including 2 ℃), only the first cold storage module 201 is activated, and the first flow rate adjustment valve 51 corresponds to the opening value p1, reducing the indoor environment temperature falling speed. B4 is less than 0 ℃, only the second cold accumulation module 202 is started, and the second flow regulating valve 52 corresponds to the opening value p2-10, so that the indoor ambient temperature drop speed is further reduced. The cold storage capacity of the first cold storage module 201 is greater than that of the second cold storage module 202, and p1 and p2 are respectively intermediate opening degrees of the first flow regulating valve 51 and the first flow regulating valve 52 from 0 to the maximum opening degree.
Similarly, when the air conditioner fan is turned on, only the first cold storage module 201 may be turned on by default, and the initial opening degree of the first flow regulating valve 51 is the maximum opening degree.
Further, when Δ t1 is greater than a second preset difference, if Δ t1 is still greater than the second preset difference after a second preset time period after the maximum opening degree of the flow regulating valve maintained in the open state, then another flow regulating valve is opened to the set opening degree. And if the delta t1 is still larger than a second preset difference value after the other flow regulating valve is opened to the third preset time length after the set opening degree, regulating the other flow regulating valve to the maximum opening degree.
For example, when the air conditioner is turned on, only the second flow rate adjustment valve 52 is opened, and when Δ t1 is greater than the second preset difference, after 15min from the opening of the second flow rate adjustment valve 52, it is detected that Δ t1 is still greater than the second preset difference, which indicates that the cooling efficiency is insufficient, and at this time, the first flow rate adjustment valve 51 is opened and operated at the set opening degree, so as to improve the cooling efficiency. If it is detected that Δ t1 is still greater than the second preset difference after 10min from the start of opening the first flow rate adjustment valve 51, the opening degree of the first flow rate adjustment valve 51 is adjusted to the maximum opening degree.
In the embodiment of the invention, after the fourth preset time length of the opening degree of the flow regulating valve in the opening state is regulated according to the preset temperature interval in which the first temperature difference value delta t1 falls, if the first temperature difference value delta t1 is unchanged, a prompt for supplementing cold is sent.
For example, the fourth preset time period is set to be 1h, and in any preset temperature interval, when the air conditioner continuously operates for 1h, the difference between the indoor ambient temperature and the target temperature is not changed, which indicates that the air conditioning fan does not refrigerate at this time, which indicates that the cold energy of the currently activated cold accumulation module 2 is insufficient for refrigerating, and the corresponding cold accumulation unit 22 needs to be refrigerated or the cold accumulation unit 22 needs to be replaced. At this time, the controller controls the reminding of the supplementary cooling capacity to be sent to the user, for example, by means of a prompting lamp, voice or sending reminding information to the user terminal.
The present invention further provides an electronic device, as shown in fig. 3, which is a schematic physical structure diagram of the electronic device provided by the present invention, the electronic device may include: a processor (processor)310, a communication Interface (communication Interface)320, a memory (memory)330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may call logic instructions in the memory 330 to execute a method for controlling a cool storage air conditioner fan according to any of the above embodiments, where the method includes:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and controlling to open at least one flow regulating valve according to the indoor ambient temperature and the target temperature so as to start at least one cold accumulation module and regulate the opening degree of the flow regulating valve in an open state.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method of controlling a cool-storage air conditioner fan according to any one of the above embodiments, the method comprising:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and controlling to open at least one flow regulating valve according to the indoor ambient temperature and the target temperature so as to start at least one cold accumulation module and regulate the opening degree of the flow regulating valve in an open state.
In still another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program being implemented by a processor to perform the method for controlling a cool-storage air conditioner fan according to any one of the above embodiments, the method including:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and controlling to open at least one flow regulating valve according to the indoor ambient temperature and the target temperature so as to start at least one cold accumulation module and regulate the opening degree of the flow regulating valve in an open state.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A control method of a cool storage type air conditioning fan is characterized by comprising the following steps:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
calculating a first temperature difference value delta t1 between the target temperature and the indoor ambient temperature, and determining a temperature preset interval in which the first temperature difference value delta t1 falls;
determining a flow regulating valve to be opened according to the falling temperature preset interval, and determining the opening degree of the flow regulating valve in an opening state;
calculating a second temperature difference value delta t2 between the indoor environment temperature after the first preset time length and the indoor environment temperature before the first preset time length at intervals of the first preset time length by taking the first preset time length as a period;
when the first preset difference value is larger than the delta t1 and is smaller than or equal to the second preset difference value, at least one of the first flow regulating valve and the second flow regulating valve is opened, if the delta t2 is larger than a first preset temperature value, the opening degree of the flow regulating valve is maintained, and otherwise, the opening degree of the flow regulating valve in an opening state is increased;
when the delta t1 is less than or equal to a first preset difference value, only one of the first flow regulating valve and the second flow regulating valve is opened, if the delta t2 is greater than a second preset temperature value, the opening degree of the flow regulating valve in an opening state is reduced, otherwise, the opening degree of the flow regulating valve is maintained; wherein the first preset temperature value is greater than or equal to the second preset temperature value, and the first preset difference value is greater than 0 ℃;
the cold accumulation type air conditioning fan comprises a heat exchange tube, a first cold accumulation module, a second cold accumulation module and a controller; the heat exchange tube is positioned in a heat exchange air duct of the air conditioner fan, the first cold accumulation module and the second cold accumulation module respectively comprise a cold accumulation tube and a cold accumulation unit, the cold accumulation unit is positioned on the periphery of the cold accumulation tube, an inlet of the cold accumulation tube is communicated with an outlet of the heat exchange tube, and an outlet of the cold accumulation tube is communicated with an inlet of the heat exchange tube to form a closed refrigerant circulation pipeline; the first cold accumulation module and the second cold accumulation module have different cold accumulation capacities and are connected with the heat exchange tube in a mutual parallel mode, the first flow regulating valve is arranged on a communication pipeline between the heat exchange tube and the first cold accumulation module, and the second flow regulating valve is arranged on a communication pipeline between the heat exchange tube and the second cold accumulation module; the controller is in signal connection with the first flow regulating valve and the second flow regulating valve and is used for regulating the opening degrees of the first flow regulating valve and the second flow regulating valve.
2. The method of controlling a cool storage type air conditioning fan as claimed in claim 1, wherein the cool storage capacity of the first cool storage module is greater than that of the second cool storage module, the method of controlling the cool storage type air conditioning fan comprising:
when the temperature is more than 0 ℃ and less than or equal to delta t1 and less than or equal to a first preset difference value, only opening the first flow regulating valve;
when Δ t1 < 0 ℃, only the second flow regulating valve is opened.
3. The method for controlling a cold-storage air conditioner fan according to claim 1, wherein when a first preset difference value < Δ t1 ≦ a second preset difference value, only one of the first flow rate adjustment valve and the second flow rate adjustment valve is opened, and the other flow rate adjustment valve is also opened while the opening degree of the flow rate adjustment valve in the opened state is increased.
4. The method for controlling a cool storage type air conditioner fan according to claim 1, further comprising:
the preset temperature values further comprise a third preset temperature value, when the delta t1 is larger than a second preset difference value, at least one of the first flow regulating valve and the second flow regulating valve is opened, if the delta t2 is larger than the third preset temperature value, the opening degree of the flow regulating valve is maintained, and otherwise, the opening degree of the flow regulating valve in an opening state is increased;
or when the air conditioner fan is started, only one of the first flow regulating valve and the second flow regulating valve is opened, the initial opening degree is the maximum opening degree, and when the delta t1 is larger than a second preset difference value, the maximum opening degree of the flow regulating valve in the opening state is maintained.
5. The method as claimed in claim 4, wherein if Δ t1 > a second predetermined difference after a second predetermined time period after the maximum opening degree of the flow rate adjustment valve maintained in the open state, the other flow rate adjustment valve is opened to a set opening degree;
and if the delta t1 is still larger than a second preset difference value after the other flow regulating valve is opened to the set opening for a third preset time period, regulating the other flow regulating valve to the maximum opening.
6. The method as claimed in claim 1, wherein the cool storage type air conditioner further comprises a temperature sensor for detecting an indoor ambient temperature, and the temperature sensor is in communication with the controller.
7. The method as claimed in claim 1, wherein the outlet of the heat exchange pipe is connected to the inlet of the cool storage pipe through an air pipe, and the air pipe is disposed in an inclined manner.
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| CN113819683B (en) * | 2021-09-10 | 2023-03-21 | 青岛海尔空调器有限总公司 | Refrigeration system and control method thereof |
| CN113819682B (en) * | 2021-09-10 | 2023-03-21 | 青岛海尔空调器有限总公司 | Refrigeration system and control method thereof |
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