CN113339908A - 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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- CN113339908A CN113339908A CN202110587391.1A CN202110587391A CN113339908A CN 113339908 A CN113339908 A CN 113339908A CN 202110587391 A CN202110587391 A CN 202110587391A CN 113339908 A CN113339908 A CN 113339908A
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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
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Abstract
本发明涉及家用电器技术领域，提供一种蓄冷式空调扇及其控制方法。所述蓄冷式空调扇包括换热管、蓄冷模块和控制器；所述换热管位于空调扇的换热风道内，所述蓄冷模块包括蓄冷管和蓄冷单元，所述换热管的两端分别与所述蓄冷管的两端相连通，形成封闭的冷媒循环管路，所述蓄冷单元位于所述蓄冷管的外周；所述冷媒循环管路上设置有流量调节阀，所述控制器与所述流量调节阀信号连接，用于调节所述流量调节阀的开度。本发明提供的蓄冷式空调扇，通过设置蓄冷模块和封闭的冷媒循环管路，冷媒可在封闭的冷媒循环管路内循环使用，无需更换，不会增加环境内的空气相对湿度，可减少细菌的滋生，能够实现对空调扇出风温度的自动控制。
The invention relates to the technical field of household appliances, and provides a cold storage type air-conditioning fan and a control method thereof. The cold storage air-conditioning fan includes a heat exchange pipe, a cold storage module and a controller; the heat exchange pipe is located in the heat exchange air duct of the air conditioning fan, the cold storage module includes a cold storage pipe and a cold storage unit, and both ends of the heat exchange pipe They are respectively connected with both ends of the cold storage pipe to form a closed refrigerant circulation pipeline, and the cold storage unit is located on the outer circumference of the cold storage pipe; The flow regulating valve is connected with a signal for adjusting the opening of the flow regulating valve. The cold storage type air-conditioning fan provided by the present invention is provided with a cold storage module and a closed refrigerant circulation pipeline, and the refrigerant can be recycled in the closed refrigerant circulation pipeline without replacement, does not increase the relative humidity of the air in the environment, and can reduce bacteria It can realize the automatic control of the air temperature of the air conditioner fan.
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
Under the influence of factors such as price, occupied space, mobility, energy conservation and the like, more and more users buy air conditioning fans to replace air conditioners to adjust 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 damped and moldy; the water tank needs to be cleaned frequently, otherwise the bacteria are easy to breed, and then the bacteria are blown into the air, so that the health of a human body is influenced.
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 cold accumulation module and a controller, wherein the heat exchange tube is connected with the cold accumulation module; 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, two ends of the heat exchange tube are respectively communicated with two ends of the cold accumulation tube to form a closed refrigerant circulation pipeline, and the cold accumulation unit is positioned on the periphery of the cold accumulation tube; and the refrigerant circulating pipeline is provided with a flow regulating valve, and the controller is in signal connection with the flow regulating valve 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 cold accumulation module further comprises a heat preservation box, the cold accumulation unit and the cold accumulation pipe are both positioned in the heat preservation box, and two ends of the cold accumulation pipe are respectively connected with the side wall of the heat preservation box.
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 adjusting the opening degree of the flow regulating valve according to the indoor environment temperature and the target temperature.
According to the method for controlling a cool storage type air conditioning fan according to the present invention, the adjusting of the opening degree of the flow rate adjustment valve according to the indoor ambient temperature and the target temperature includes:
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;
and determining the opening degree of the flow regulating valve according to the falling temperature preset interval.
According to the control method of the cold accumulation type air conditioning fan provided by the invention, the smaller the temperature value corresponding to the preset temperature interval is, the smaller the opening degree of the flow regulating valve is.
According to the method for controlling a cool storage type air conditioner fan provided by the present invention, after the opening degree of the flow rate adjustment valve is adjusted according to the preset temperature interval in which the first temperature difference Δ t1 falls, the method further includes:
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 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 provided by the invention, whether the opening degree of the flow regulating valve 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 conditioning fan provided by the invention, the preset temperature value comprises a first preset temperature value and a second preset temperature value, and the control method comprises the following steps:
when the first preset difference value is less than or equal to the second preset difference value and less than or equal to the delta t1, if the 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;
when the delta t1 is smaller than or equal to a first preset difference value, if the delta t2 is larger than the second preset temperature value, the opening degree of the flow regulating valve 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 control method of the cold accumulation type air conditioning 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, if the delta t2 is larger than the third preset temperature value, the opening degree of the flow regulating valve is maintained, otherwise, the opening degree of the flow regulating valve is increased;
or when the air conditioner fan is started, the initial opening of the flow regulating valve is the maximum opening, and when the delta t1 is larger than a second preset difference value, the opening of the flow regulating valve is maintained.
According to the control method of the cold accumulation type air conditioner fan, after the second preset time length of the opening degree of the flow regulating valve is regulated according to the temperature preset interval in which the first temperature difference delta t1 falls, if the first temperature difference delta t1 is unchanged, a prompt that cold is required to be supplemented is sent.
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 frequently change water 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, the opening degree of the flow regulating valve is regulated through the controller, and the automatic control of the air outlet temperature of the air-conditioning fan 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:
1. a heat exchange pipe; 2. A cold storage module; 21. A cold storage tube;
22. a cold storage unit; 23. A box body; 3. A housing;
4. a stop valve; 5. A 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 clearer, 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 can be understood by those of ordinary skill in the art according to specific situations.
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 specific cases to those skilled 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 cold accumulation module 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. Two ends of the heat exchange tube 1 are respectively communicated with two ends of the cold accumulation tube 21 to form a closed refrigerant circulation pipeline. The cold storage unit 22 is located at the outer periphery of the cold storage tube 21. The cold storage unit 22 exchanges heat with the refrigerant in the refrigerant circulation line through the cold storage tube 21. And a flow regulating valve 5 is arranged on the refrigerant circulating pipeline, and the controller is in signal connection with the flow regulating valve 5 and is used for regulating the opening degree of the flow regulating valve 5.
The cold accumulation unit 22 may be a bagged or boxed cold accumulation agent, such as ice crystal, which is packaged independently. 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 again 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 accumulation 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.
The cold accumulation type air conditioning fan provided by the embodiment of the invention can adjust the flow of the refrigerant entering the heat exchange tube 1 by adjusting the opening degree of the flow adjusting valve 5 through the controller, thereby realizing the accurate control of the outlet air temperature. The flow regulating valve 5 is an electromagnetic flow regulating valve such as an electronic expansion valve.
When in use, the cold accumulation unit 22 can be taken out and put into a refrigerating device for refrigeration, and then the cold accumulation unit is put into an air conditioning fan after having enough cold energy. The refrigerant in the cold storage tube 21 is cooled by the cold storage unit 22. After the cool storage type air conditioning fan is turned on, the cooled low-temperature refrigerant flows out from the outlet of the cool storage tube 21 and enters the heat exchange tube 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 a closed refrigerant circulation 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 frequently change water 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, the opening degree of the flow regulating valve 5 is regulated by the controller, so that the air outlet temperature of the air-conditioning fan can be automatically controlled.
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 ambient temperature and the target temperature set by the user, and then adjusts the opening of the flow regulating valve 5 according to the flow of the refrigerant.
The opening degree of the flow rate control valve 5 has a certain correspondence relationship with the refrigerant flow rate flowing therethrough and the indoor ambient temperature. And determining the opening degree of the flow regulating valve 5 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 adjustment valve 5 is decreased; when sensing that the indoor ambient temperature is higher than the target temperature, the opening degree of the flow rate adjustment valve 5 is increased, thereby ensuring that the indoor ambient temperature is stabilized 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 refrigerant in the heat exchange tube 1, and then the low-temperature liquid refrigerant is converted into high-temperature gaseous refrigerant and flows 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 is gaseous refrigerant after with the air heat transfer after, 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 can be condensed into liquid refrigerant when rising in the air pipe 8 from the heat exchange tube 1, and the liquid refrigerant flows downwards in the air pipe 8 due to the action of gravity, interferes with the flow of the rising gaseous refrigerant, further reduces the temperature of the rising gaseous refrigerant, and even causes the blockage of the air pipe 8, 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 pipe 8 and the horizontal plane is less than 70 degrees, so that the air pipe 8 has a certain inclination angle to make the condensed water flow down along the inclined air pipe 8.
It should be noted that the inclination angle in this embodiment refers to the 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 space between the circulating pipeline in the air pipe 8 and the horizontal plane is arranged in an inclined mode 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 liquid after heat exchange with air, the circulating power of the refrigerant in the refrigerant circulating pipeline can be provided by the pump. Optionally, a pump is installed between the outlet of the cold storage tube 21 and the inlet of the heat exchange tube 1, the inlet of the pump is connected to the outlet of the 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 located on the circulation pipeline 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, the refrigerant circulating pipeline is provided with a stop valve 4. When the cool storage type air conditioning fan is turned off, the stop valve 4 is also turned off. So as to prevent the cold loss caused by the continuous flowing of the refrigerant, thereby reducing the times of replacing the cold accumulation unit 22. Optionally, the shut-off valve 4 is an electronic shut-off valve, and the controller is in signal connection with the shut-off valve 4.
Alternatively, the cutoff valve 4 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. Optionally, two 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 two 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 a separated and detachable pipeline.
Further, the side wall of the box body 23 is provided with a heat insulation layer to form a heat insulation box, so that heat exchange between the cold accumulation unit 22 in the box body 23 and the external environment is reduced, and 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 at 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 invention, the number of the heat exchange tubes 1 is multiple, and the 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 storage 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 conditioner fan comprises the following steps:
s100, after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and S200, adjusting the opening of the flow regulating valve 5 according to the indoor environment temperature and the target temperature.
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. In the operation process of the air conditioning fan, the controller can purposefully adjust the opening of the flow regulating valve 5 according to the detected indoor environment temperature and the set target temperature, so as to realize the automatic control of the indoor environment temperature.
The larger the opening degree of the flow rate adjusting valve 5 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 ambient temperature is high, the air-conditioning fan is controlled to operate in a state where the opening degree of the flow rate adjustment valve 5 is large, and when the indoor ambient temperature is low, the air-conditioning fan is controlled to operate in a state where the opening degree of the flow rate adjustment valve 5 is small.
Optionally, the adjusting the opening degree of the flow regulating valve 5 according to the indoor ambient temperature and the target temperature 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;
and S220, determining the opening degree of the flow regulating valve 5 according to the falling temperature preset interval.
The first temperature difference Δ t1 is a value obtained by subtracting the target temperature from the indoor ambient temperature. Specifically, predetermine a plurality of temperature in the air cooler and predetermine the interval, a plurality of temperature predetermine a plurality of gears that the interval corresponds the air cooler, and the temperature value that the interval corresponds is predetermine to the temperature is big more, and the gear is higher. The opening degree of the flow regulating valve 5 at the high gear is not less than that at the low gear.
For example, the preset interval has four B1, B2, B3 and B4. B1 is greater than 5 ℃ (excluding 5 ℃), corresponding to an opening value p1+ 50; b2 is 2 ℃ to 5 ℃ (excluding 2 ℃, including 5 ℃), corresponding to an opening value p 1; b3 is 0 deg.C to 2 deg.C (excluding 0 deg.C and including 2 deg.C), corresponding to an opening value of p 1; b4 is less than 0 deg.C, and corresponds to opening value p 1-10. Wherein, the opening value p1 refers to the initial opening of the flow regulating valve 5 when the air-conditioning fan is started
When the calculated first temperature difference value Δ t1 falls into the interval B1, the flow regulating valve 5 is controlled to operate at the opening degree of p1+50, so that the low-temperature refrigerant in the cold storage tube 21 enters the heat exchange tube 1 with a larger circulation amount, and the refrigeration effect of the air conditioning fan is improved. When the calculated first temperature difference value Δ t1 falls within the interval B2 or B3, which indicates that the difference between the indoor ambient temperature and the target temperature is not large, the flow regulating valve 5 is controlled to operate at the opening degree p1, the flow rate of the low-temperature refrigerant in the cold storage tube 21 entering the heat exchange tube 1 is reduced, and the falling speed of the indoor ambient temperature is 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, and at the moment, the flow regulating valve 5 is controlled to operate at the opening degree of p1-10, so that the low-temperature refrigerant in the cold storage tube 21 enters the heat exchange tube 1 with relatively small circulation, and the indoor environment temperature is maintained at about the target temperature through the refrigeration operation of the air conditioning fan.
Optionally, the smaller the temperature value corresponding to the preset temperature interval is, the smaller the opening degree of the flow regulating valve 5 is. For example, B1 is greater than 5 ℃ (excluding 5 ℃), corresponding to an opening value of p1+ 50; b2 is 2 ℃ to 5 ℃ (excluding 2 ℃, including 5 ℃), corresponding to an opening value p 1; b3 is 0 deg.C to 2 deg.C (excluding 0 deg.C and including 2 deg.C), and corresponding opening value p 1-10; b4 is less than 0 deg.C, and opening value p 1-20.
When the calculated first temperature difference value delta t1 falls into the B3 interval, the flow regulating valve 5 is controlled to operate at the opening degree of p1-10, and compared with the B2 interval, the flow of the low-temperature refrigerant in the cold storage tube 21 entering the heat exchange tube 1 is further reduced, so that the falling speed of the indoor environment temperature is further reduced, and the indoor environment temperature reaches the target temperature at a more stable speed.
On the basis of the above embodiment, after the opening degree of the flow rate adjustment valve 5 is adjusted according to the preset temperature interval in which the first temperature difference Δ t1 falls, the method for controlling a cool storage type air conditioning fan according to the present invention further includes the steps of:
s310, taking a first preset time period as a period, and 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 5 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 the 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 of the flow regulating valve 5 is further adjusted according to the refrigeration effect.
For example, after the opening degree of the flow regulating valve 5 is adjusted according to the preset temperature interval in which the first temperature difference Δ T1 falls, the first preset time 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 to adjust the opening degree of the flow regulating valve 5 is determined according to the comparison result of the second temperature difference value Δ T2 and the preset temperature value T. For example, when the cooling effect is good, the current opening degree of the flow rate adjustment valve 5 is maintained; otherwise, the opening degree of the flow rate adjustment valve 5 is increased.
For another example, it is determined whether the opening degree of the flow rate adjustment valve 5 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. 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 Δ t1 falls is high, if the cooling effect is obvious, the current opening degree of the flow regulating valve 5 can be maintained to maintain the current cooling speed; if the cooling effect is not obvious, the opening degree of the flow regulating valve 5 is increased 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 5 is properly reduced to reduce the cooling speed, so that the indoor environment temperature is prevented from being lower than the target temperature after the first preset time, and the accurate control of the temperature is facilitated; and if the temperature reduction effect is not obvious, maintaining the opening degree of the current flow regulating valve 5.
Specifically, the preset temperature values T include a first preset temperature value T1 and a second preset temperature value T2. In step S320, determining whether the opening degree of the flow rate adjustment valve 5 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 in which the first temperature difference Δ T1 falls includes:
s321, when the first preset difference value is less than delta T1 and less than or equal to the second preset difference value, if delta T2 is greater than the first preset temperature value T1, maintaining the opening degree of the flow regulating valve 5; otherwise, the opening degree of the flow rate adjustment valve 5 is increased. For example, the opening degree of the flow rate adjustment valve 5 is increased by a first preset opening degree magnitude.
S322, when the delta T1 is smaller than or equal to a first preset difference value, if the delta T2 is larger than the second preset temperature value T2, the opening degree of the flow regulating valve 5 is reduced; otherwise, maintaining the opening degree of the flow regulating valve 5; the first preset temperature value T1 is greater than or equal to the second preset temperature value T2, and the first preset difference value is greater than 0 ℃.
When the delta t1 is smaller than or equal to a first preset difference, the indoor environment temperature is higher than the target temperature to a lower degree than when the first preset difference is smaller than the delta t1 and smaller than or equal to a second preset difference. This embodiment is through setting up second preset temperature value T2 and being less than or equal to first preset temperature value T1, is less than or equal to first preset difference and when Δ T2 is greater than second preset temperature value T2 at Δ T1, reduces the aperture that is in the flow control valve of open condition, can realize the more accurate control to indoor ring temperature to control indoor ring temperature and accurately reach the target temperature, avoid indoor ring temperature near target temperature to fluctuate repeatedly. 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 5 is reduced according to a fourth preset opening degree amplitude; otherwise, the opening degree of the flow rate adjustment valve 5 is maintained. When the temperature delta T1 is less than 0 ℃, if the temperature delta T2 is greater than a second preset temperature value T2, reducing the opening degree of the flow regulating valve 5 according to a second preset opening degree amplitude; 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 determining whether the opening degree of the flow rate adjustment valve 5 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 in which the first temperature difference Δ T1 falls includes:
s323, the preset temperature value T further includes a third preset temperature value T3, and when Δ T1 is greater than a second preset difference value, if Δ T2 is greater than the third preset temperature value T3, the opening degree of the flow rate adjustment valve 5 is maintained; otherwise, the opening degree of the flow rate adjustment valve 5 is increased. For example, the opening degree of the flow rate adjustment valve 5 is increased by a third preset opening degree amplitude, which is greater than or equal to the first preset opening degree amplitude.
Optionally, the different temperature preset intervals correspond to different preset temperature values T, and the larger the temperature value corresponding to the temperature preset 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 controlling the indoor ambient temperature is.
For example, the preset temperature interval has four intervals B1, B2, B3 and B4. B1 is greater than 5 deg.C (excluding 5 deg.C), corresponding to the opening value p1+50, the first preset time is 5min, and corresponding to the third preset temperature value T3 is 0.8 deg.C. B2 is 2 deg.C to 5 deg.C (excluding 2 deg.C and including 5 deg.C), corresponding to the opening value p1, the first preset time is 5min, and corresponding to the first preset temperature value T1 is 0.5 deg.C. B3 is 0 deg.C to 2 deg.C (excluding 0 deg.C and including 2 deg.C), corresponding to the opening value p1, the first preset time is 5min, and corresponding to the second preset temperature value T2 is 0.3 deg.C. B4 is less than 0 deg.C (including 0 deg.C), corresponding to opening value p1-10, first preset time is 5min, and corresponding to fourth preset temperature value T4 is 0.2 deg.C.
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 preset temperature interval has four intervals B1, B2, B3 and B4. B1 is greater than 5 ℃ (excluding 5 ℃), corresponds to an opening value p1+50, has a first preset time length of 5min, corresponds to a third preset temperature value T3 of 0.8 ℃, and corresponds to a third preset opening amplitude of 10. B2 is 2-5 deg.C (excluding 2 deg.C and including 5 deg.C), corresponding to the opening value p1, the first preset time is 5min, corresponding to the first preset temperature value T1 is 0.5 deg.C, and corresponding to the first preset opening amplitude value is 5. B3 is 0-2 deg.C (excluding 0 deg.C and including 2 deg.C), corresponding to the opening value p1, the first preset time is 5min, the corresponding second preset temperature value T2 is 0.3 deg.C, and corresponding fourth preset opening amplitude is 10. B4 is less than 0 deg.C (including 0 deg.C), corresponding to opening value p1-10, first preset time is 5min, corresponding to fourth preset temperature value T4 is 0.3 deg.C, and corresponding to second preset opening amplitude is 20.
In another embodiment of the present invention, when the air conditioner fan is turned on, the initial opening of the flow regulating valve 5 is the maximum opening, and when Δ t1 is greater than the second preset difference, the opening of the flow regulating valve 5 is maintained, that is, the flow regulating valve 5 is kept operating at the maximum opening, so as to accelerate the decrease speed of the indoor ambient temperature.
In the embodiment of the invention, after the second preset time length of the opening degree of the flow regulating valve 5 is regulated according to the preset temperature interval in which the first temperature difference value Δ t1 falls, if the first temperature difference value Δ t1 is not changed, a prompt that cold energy needs to be supplemented is sent out.
For example, the second preset time period is set to be 1h, and in any preset temperature interval, when the air conditioner is continuously operated for 1h, the difference between the indoor ambient temperature and the target temperature is not changed, which indicates that the air conditioning fan is not refrigerating, which indicates that the cooling capacity of the cold storage module 2 is insufficient for refrigerating, and it is necessary to perform cold storage on the cold storage unit 22 or replace the cold storage unit 22. At this time, the controller controls to send a cold energy supplement prompt to the user, for example, by means of a prompting lamp, voice or sending a prompt message to the user terminal.
On the basis of any one of the above embodiments, the method for controlling a cool storage type air conditioning fan according to an embodiment of the present invention further includes:
s400, adjusting the rotating speed of the fan according to the indoor environment temperature and the target temperature.
During the operation process of the air conditioning fan, the controller can purposefully adjust the rotating speed of the fan according to the detected indoor environment temperature and the set target temperature. The faster the rotating speed of the fan is, the faster the wind speed flowing through the heat exchange tube 1 is, the higher the utilization rate of the cooling capacity of the refrigerant in the heat exchange tube 1 is, and the higher the heat exchange efficiency is. The invention can adjust the rotating speed of the fan according to the indoor environment temperature and the target temperature, for example, when the indoor environment temperature is higher, the fan is controlled to operate at a higher wind speed, and when the indoor environment temperature is lower, the fan is controlled to operate at a lower wind speed.
Optionally, in an embodiment of the present invention, the adjusting the rotation speed of the fan according to the indoor ambient temperature and the target temperature includes:
s410, determining the rotating speed of the fan according to a preset temperature interval in which the first temperature difference value delta t1 falls.
Specifically, the temperature preset intervals correspond to a plurality of gears of the air conditioning fan, and the larger the temperature value corresponding to the temperature preset interval is, the higher the gear is. The rotating speed of the fan corresponding to the high gear is not less than that of the fan corresponding to the low gear.
For example, the preset interval has four B1, B2, B3 and B4. B1 is greater than 5 ℃ (excluding 5 ℃), corresponding to a fan speed of v1+ 50; b2 is 2-5 deg.C (excluding 2 deg.C and including 5 deg.C), corresponding to fan speed v1+ 50; b3 is 0 ℃ to 2 ℃ (excluding 0 ℃, including 2 ℃), corresponding to a fan speed of v 1; b4 is less than 0 ℃, and the corresponding fan rotating speed is v 1-50.
It should be noted that the fan rotation speed v1 means that the indoor temperature can be stabilized around the target temperature by operating the fan at the rotation speed v1 during the cooling process of the air conditioner fan, and the specific value is different for different types of air conditioner fans and different refrigerants.
Optionally, the smaller the temperature value corresponding to the preset temperature interval is, the smaller the rotation speed of the fan is. The lower the indoor ambient temperature is, the lower the rotation speed of the control fan is. For example, B1 is greater than 5 ℃ (excluding 5 ℃), corresponding to a fan speed of v1+ 100; b2 is 2-5 deg.C (excluding 2 deg.C and including 5 deg.C), corresponding to fan speed v1+ 50; b3 is 0 ℃ to 2 ℃ (excluding 0 ℃, including 2 ℃), corresponding to a fan speed of v 1; b4 is less than 0 ℃, and the corresponding fan rotating speed is v 1-50.
Further, after the opening degree of the flow regulating valve 5 is adjusted according to the preset temperature interval in which the first temperature difference Δ t1 falls, the method for controlling a cool storage type air conditioning fan according to the present invention further includes the steps of:
and S420, determining whether the rotating speed of the fan needs to be adjusted 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 rotating speed of the fan is maintained; otherwise, the rotational speed of the fan is increased. For another example, it is determined whether the rotation speed of the fan 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 in which the first temperature difference Δ T1 falls.
Specifically, the determining whether the rotation speed of the fan 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 in which the first temperature difference Δ T1 falls includes:
s421, when the first preset difference is less than Δ T1 and less than or equal to the second preset difference, if Δ T2 is greater than the first preset temperature value T1, maintaining the rotation speed of the fan; otherwise, the rotational speed of the fan is increased. For example, the speed of the fan is increased by a first predetermined speed magnitude.
S422, when the delta T1 is less than or equal to a first preset difference value, if the delta T2 is greater than the second preset temperature value T2, the rotating speed of the fan is reduced; otherwise, the rotation speed of the fan is maintained.
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 rotating speed of the fan is reduced according to a fourth preset rotating speed amplitude; otherwise, the rotation speed of the fan is maintained. When the temperature delta T1 is lower than 0 ℃, if the temperature delta T2 is higher than a second preset temperature value T2, reducing the rotating speed of the fan according to a second preset rotating speed amplitude; otherwise, the rotation speed of the fan is maintained. The fourth preset temperature value T4 is greater than or equal to the second preset temperature value T2, and the fourth preset rotating speed amplitude is less than or equal to the second preset rotating speed amplitude and less than or equal to the first preset rotating speed amplitude.
In an embodiment of the present invention, the determining whether the rotation speed of the fan 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 in which the first temperature difference Δ T1 falls further includes:
s423, the preset temperature values T further include a third preset temperature value T3, and when Δ T1 is greater than a second preset difference value, if Δ T2 is greater than the third preset temperature value T3, the rotation speed of the fan is maintained; otherwise, the rotational speed of the fan is increased. For example, the rotation speed of the fan is increased according to a third preset rotation speed amplitude value, and the third preset rotation speed amplitude value is larger than or equal to the first preset rotation speed amplitude value.
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 rotation speed amplitude is, that is, the third preset rotation speed amplitude is greater than the first preset rotation speed 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 rotation speed amplitude is, that is, the second preset rotation speed amplitude is larger than the fourth preset rotation speed 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 preset temperature interval has four intervals B1, B2, B3 and B4. B1 is greater than 5 ℃ (excluding 5 ℃), corresponds to the opening value p1+50, the first preset time is 5min, corresponds to the third preset temperature value T3 is 0.8 ℃, and corresponds to the third preset rotation speed amplitude value 50. B2 is 2-5 deg.C (excluding 2 deg.C and including 5 deg.C), corresponding to the opening value p1, the first preset time is 5min, corresponding to the first preset temperature value T1 is 0.5 deg.C, and corresponding to the first preset rotation speed amplitude value is 40. B3 is 0-2 deg.C (excluding 0 deg.C and including 2 deg.C), corresponding to the opening value p1, the first preset time is 5min, corresponding to the second preset temperature value T2 is 0.3 deg.C, and corresponding to the fourth preset rotation speed amplitude value is 20. B4 is less than 0 deg.C (including 0 deg.C), corresponding to opening value p1-10, first preset time is 5min, corresponding to fourth preset temperature value T4 is 0.3 deg.C, and corresponding to second preset rotation speed amplitude is 50 deg.C.
In another embodiment of the present invention, when the air conditioner fan is turned on, the initial opening of the fan is the maximum rotation speed, and when Δ t1 is greater than the second predetermined difference, the rotation speed of the fan is maintained, even if the fan runs at the maximum rotation speed, so as to accelerate the decrease speed of the indoor ambient temperature.
In the embodiment of the invention, after the second preset time length of the opening degree of the flow regulating valve 5 is regulated according to the preset temperature interval in which the first temperature difference value Δ t1 falls, if the first temperature difference value Δ t1 is not changed, a prompt that cold energy needs to be supplemented is sent out.
For example, the second preset time period is set to be 1h, and in any preset temperature interval, when the air conditioner is continuously operated for 1h, the difference between the indoor ambient temperature and the target temperature is not changed, which indicates that the air conditioning fan is not refrigerating, which indicates that the cooling capacity of the cold storage module 2 is insufficient for refrigerating, and it is necessary to perform cold storage on the cold storage unit 22 or replace the cold storage unit 22. At this time, the controller controls to send a cold energy supplement prompt to the user, for example, by means of a prompting lamp, voice or sending a prompt message 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 adjusting the opening degree of the flow regulating valve according to the indoor environment temperature and the target temperature.
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 software functional units 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 type air conditioning 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 adjusting the opening degree of the flow regulating valve according to the indoor environment temperature and the target temperature.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor, is implemented to perform the method for controlling a cool storage type air conditioning 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 adjusting the opening degree of the flow regulating valve according to the indoor environment temperature and the target temperature.
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 place, or may be distributed on a plurality of 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, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 (11)
1. A cold accumulation type air conditioning fan is characterized by comprising a heat exchange tube, a cold accumulation module and a controller; 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, two ends of the heat exchange tube are respectively communicated with two ends of the cold accumulation tube to form a closed refrigerant circulation pipeline, and the cold accumulation unit is positioned on the periphery of the cold accumulation tube; and the refrigerant circulating pipeline is provided with a flow regulating valve, and the controller is in signal connection with the flow regulating valve and is used for regulating the opening degree of the flow regulating valve.
2. The cool storage type air conditioner fan as claimed in claim 1, further comprising a temperature sensor for detecting an indoor ambient temperature, the temperature sensor being in communication connection with the controller.
3. The cool storage type air conditioning fan according to claim 1, wherein the cool storage module further comprises a heat preservation box, the cool storage unit and the cool storage tube are both located in the heat preservation box, and both ends of the cool storage tube are respectively connected with the side walls of the heat preservation box.
4. A method for controlling a cool storage type air conditioner fan as claimed in any one of claims 1 to 3, comprising:
after receiving an air conditioner fan starting instruction, acquiring indoor environment temperature and target temperature;
and adjusting the opening degree of the flow regulating valve according to the indoor environment temperature and the target temperature.
5. The method for controlling a regenerative air conditioner fan according to claim 4, wherein the adjusting the opening degree of the flow rate adjustment valve according to the indoor ambient temperature and the target temperature includes:
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;
and determining the opening degree of the flow regulating valve according to the falling temperature preset interval.
6. The method as claimed in claim 5, wherein the opening degree of the flow rate control valve is smaller as the temperature value corresponding to the preset temperature range is smaller.
7. The method for controlling a cool-storage air conditioner fan according to claim 5 or 6, further comprising, after adjusting the opening degree of the flow rate adjustment valve according to a preset temperature interval into which the first temperature difference Δ t1 falls:
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 needs to be regulated according to the comparison result of the second temperature difference value delta t2 and a preset temperature value.
8. The method as claimed in claim 7, wherein it is determined whether the opening degree of the flow rate adjustment valve needs to be adjusted according to a comparison result between the second temperature difference Δ t2 and a preset temperature value and a preset temperature interval in which the first temperature difference Δ t1 falls.
9. The method as claimed in claim 8, wherein the preset temperature values include a first preset temperature value and a second preset temperature value, and the method comprises:
when the first preset difference value is less than or equal to the second preset difference value and less than or equal to the delta t1, if the 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;
when the delta t1 is smaller than or equal to a first preset difference value, if the delta t2 is larger than the second preset temperature value, the opening degree of the flow regulating valve 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 ℃.
10. The method for controlling a cool storage type air conditioner fan as claimed in claim 9, 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, if the delta t2 is larger than the third preset temperature value, the opening degree of the flow regulating valve is maintained, otherwise, the opening degree of the flow regulating valve is increased;
or when the air conditioner fan is started, the initial opening of the flow regulating valve is the maximum opening, and when the delta t1 is larger than a second preset difference value, the opening of the flow regulating valve is maintained.
11. The method as claimed in claim 9, wherein after the second preset time period for adjusting the opening degree of the flow rate adjustment valve according to the preset temperature interval in which the first temperature difference Δ t1 falls, if the first temperature difference Δ t1 is not changed, a warning that the cooling capacity needs to be supplemented is issued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587391.1A CN113339908A (en) | 2021-05-27 | 2021-05-27 | Cold accumulation type air conditioning fan and control method thereof |
Applications Claiming Priority (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738679A (en) * | 2021-09-15 | 2021-12-03 | 台州市美诗儿电器有限公司 | Rotary fan with multiple degrees of freedom |
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