CN104879843A - Air conditioner control device, multi-split air conditioner and air conditioner control method - Google Patents
Air conditioner control device, multi-split air conditioner and air conditioner control method Download PDFInfo
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- CN104879843A CN104879843A CN201510324241.6A CN201510324241A CN104879843A CN 104879843 A CN104879843 A CN 104879843A CN 201510324241 A CN201510324241 A CN 201510324241A CN 104879843 A CN104879843 A CN 104879843A
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/54—Heating and cooling, simultaneously or alternatively
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner control device, a multi-split air conditioner and an air conditioner control method. The air conditioner control device comprises an indoor unit heat exchanger, an energy storage device and a fan, wherein the indoor unit heat exchanger is used for performing heat exchange on a refrigerant from an outdoor unit compressor of the multi-split air conditioner; the energy storage device performs heat exchange on the refrigerant again when the refrigerant after heat exchange by the indoor unit heat exchanger flows through the energy storage device, so that cold capacity or heat is stored; the fan is used for driving airflow to perform heat exchange with the refrigerant in the indoor unit heat exchanger when the cold capacity or heat in the energy storage device is lower than a preset threshold value, and is used for driving the airflow to perform heat exchange with the energy storage device when the cold capacity or heat in the energy storage device is higher than or equal to the preset threshold value. According to the scheme, liquid impact caused by excess capacity of the multi-split air conditioner in a low load state and longtime work of the outdoor unit compressor is avoided, and the safety performance of the multi-split air conditioner is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air conditioner controlling device, a kind of multi-split air conditioner and a kind of air-conditioner control method.
Background technology
At present, in air conditioning multi-couple machine system, determine frequency conversion off-premises station compressor combination by a powerful frequency conversion compressor of outdoor unit replacement multiple stage full frequency conversion off-premises station compressor combination or multiple stage, become the development trend in following multi-connected machine field.
But often there is the difficult problem being difficult to control Smaller load refrigeration in high-power frequency conversion compressor of outdoor unit.These difficult problems are all generally because the low-limit frequency of compressor of outdoor unit and power limited cause, size because of condenser is certain, and this just causes in some Smaller load refrigeration or heats, the lowest capability of system exports all much larger than user's request.For this situation, often need unnecessary energy to unload, with the danger preventing compressor of outdoor unit from occurring liquid hammer etc.
But existing discharging method is all generally install a hot-air bypath branch road in the high-pressure side of system, is switched to by high-tension side refrigerant near compressor of outdoor unit gas returning port, carries out the unloading of excess energy.This method is to reduce efficiency as cost, and the Energy transmission of system is still greater than and can needs, and fundamentally can not solve the problem of energy surplus when multi-split air conditioner Smaller load runs,
Therefore, how to solve the problem of energy surplus when multi-split air conditioner Smaller load runs, reduce energy consumption, become current problem demanding prompt solution.
Summary of the invention
The present invention, just based on the problems referred to above, proposes a kind of new technical scheme, and the problem of Energy transmission surplus solving air-conditioning system Smaller load refrigeration or heat, decreases the waste of energy consumption.
For this reason, one object of the present invention is, proposes a kind of air conditioner controlling device.
Another object of the present invention is, proposes a kind of multi-split air conditioner, has above-mentioned air conditioner controlling device.
Another object of the present invention is, proposes a kind of air-conditioner control method, for above-mentioned air conditioner controlling device.
In view of this, the embodiment of first aspect present invention proposes a kind of air conditioner controlling device, comprising: indoor set heat exchanger, for carrying out heat exchange to the refrigerant of the compressor of outdoor unit from multi-split air conditioner; Energy storage equipment, is connected to described indoor set heat exchanger, and when the described refrigerant after described indoor set heat exchanger heat exchange flows through described energy storage equipment, described energy storage equipment carries out heat exchange again to described refrigerant, to put aside cold or heat; Blower fan, be arranged on the side of described indoor set heat exchanger and described energy storage equipment, during for the described cold in described energy storage equipment or described heat lower than predetermined threshold, the described refrigerant in air-flow and described indoor set heat exchanger is driven to carry out exchange heat, and described cold in described energy storage equipment or described heat are when being more than or equal to described predetermined threshold, driving air-flow and described energy storage equipment to carry out exchange heat, is that described multi-split air conditioner carries out freezing or heating for being replaced described compressor of outdoor unit by described energy storage equipment.
According to the air conditioner controlling device of the embodiment of the present invention, be made up of indoor set heat exchanger, energy storage equipment and blower fan, wherein, indoor set heat exchanger carries out heat exchange to the refrigerant from compressor of outdoor unit, for refrigeration space provides cold or heat, energy storage equipment is used for the heat exchange again of the refrigerant from indoor set heat exchanger, thus cold or heat is stored in energy storage equipment.When multi-split air conditioner Smaller load runs, machine in part is had not open in system, refrigerant heat exchange in indoor set heat exchanger will be caused incomplete, part cold or heat is also had not to utilize, by energy storage equipment by the heat exchange again of the refrigerant from indoor set heat exchanger, unnecessary cold or heat storage can be got up, so as by store cold or heat carry out freezing or heating, save energy consumption.In the side of indoor set heat exchanger and energy storage equipment, blower fan is set, the quantity of blower fan can be one or more, when the cold in energy storage equipment or heat reach reservation threshold, drive the air-flow in air and the refrigerant in energy storage equipment to carry out exchange heat by blower fan, it is that multi-split air conditioner carries out freezing or heating that such energy storage equipment just can replace compressor of outdoor unit.By above technical scheme, when multi-split air conditioner carries out Smaller load refrigeration or heats, the incomplete cold of evaporation or heat can store by energy storage equipment, and discharge this cold or heat under driving when cold or heat reach certain value at blower fan, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.Wherein, multi-split air conditioner is preferably one and drags many multi-split air conditioners.
According to one embodiment of present invention, also comprise: controller, be connected to described energy storage equipment, described blower fan and described compressor of outdoor unit, for judging whether described cold in described energy storage equipment or described heat reach described predetermined threshold, for the duty adjusting described energy storage equipment according to judged result, wherein, the duty of described energy storage equipment comprises cold-storage state, heat storage state, refrigerating state, heats state and holding state.
According to the air conditioner controlling device of the embodiment of the present invention, when the cold that energy storage equipment stores or heat reach predetermined threshold, controller will by the cold in energy storage equipment or thermal release, and drive blower fan to be that this cold or heat carry out heat exchange.Under cold-storage state, energy storage equipment is for storing cold, under heat storage state, energy storage equipment is used for store heat, under refrigerating state, energy storage equipment is used for released cold quantity, heating under state, energy storage equipment is used for release heat, when multi-split air conditioner is in non-Smaller load running status, energy storage equipment is in holding state, and refrigerant does not flow through energy storage equipment or energy storage equipment does not work when flowing through energy storage equipment.By above technical scheme, can drive blower fan by controller, and control the duty of energy storage equipment, thus more effectively can control energy storage equipment.
According to one embodiment of present invention, described indoor set heat exchanger and described energy storage equipment serial or parallel connection.
According to the air conditioner controlling device of the embodiment of the present invention, energy storage equipment can be connected in the link circuit of compressor and indoor set heat exchanger, and like this, when compressor does not work, energy storage equipment can directly for indoor set heat exchanger provides cold or heat.In addition, energy storage equipment also can be in parallel with indoor set heat exchanger, and like this, when compressor quits work, energy storage equipment and indoor set heat exchanger form loop, for indoor set heat exchanger provides cold or heat.
According to one embodiment of present invention, also comprise: multiple magnetic valve, be distributed on described energy storage equipment, pipeline between described indoor set heat exchanger and described compressor of outdoor unit, be connected to described controller, controlled the described duty of described energy storage equipment for described controller by the break-make controlling described magnetic valve.
According to the air conditioner controlling device of the embodiment of the present invention, controller is also connected to multiple magnetic valve, be located on the pipeline between energy storage equipment and compressor of outdoor unit, the duty of energy storage equipment can be controlled by the break-make of Controlling solenoid valve, to save energy consumption and to avoid liquid hammer.
According to one embodiment of present invention, also comprise: throttle part, be connected to described indoor set heat exchanger, for carrying out throttling process to described refrigerant.
According to the air conditioner controlling device of the embodiment of the present invention, also have throttle part, this throttle part is connected with indoor set heat exchanger, is used for controlling the flow of refrigerant, carries out throttling process to refrigerant.By above technical scheme, throttling process is carried out to refrigerant, avoid because refrigerant flowing is too fast and cause energy storage equipment cold unnecessary in refrigerant or heat all can not be stored the problem of getting off, saving energy consumption.
A second aspect of the present invention embodiment proposes a kind of multi-split air conditioner, comprising: off-premises station; And multiple indoor set, be connected to described off-premises station, each indoor set in described multiple indoor set has the air conditioner controlling device according to any one of technique scheme.Therefore, this multi-split air conditioner has the technique effect identical with the air conditioner controlling device according to any one of technique scheme, does not repeat them here.
A third aspect of the present invention embodiment proposes a kind of air-conditioner control method, for the air conditioner controlling device according to any one of technique scheme, comprising: determine whether reach predetermined threshold with the cold in the energy storage equipment that the indoor set heat exchanger of multi-split air conditioner is connected or heat; When determining described cold or described heat reaches described predetermined threshold, driving air-flow and described energy storage equipment to carry out exchange heat by the blower fan of described multi-split air conditioner, is that described multi-split air conditioner carries out freezing or heating for being replaced described compressor of outdoor unit by described energy storage equipment.
According to the air-conditioner control method of the embodiment of the present invention, under refrigeration or heating mode, can judge whether cold in energy storage equipment or heat reach predetermined threshold, if reach predetermined threshold, illustrate that the cold that energy storage equipment stores or heat are enough to carry out Smaller load refrigeration or heat, drive the air-flow in air and the refrigerant in energy storage equipment to carry out exchange heat by blower fan, it is that multi-split air conditioner carries out freezing or heating that such energy storage equipment just can replace compressor of outdoor unit.By above technical scheme, when multi-split air conditioner carries out Smaller load operation, the incomplete cold of exchange or heat can store by energy storage equipment, and discharge this cold or heat under driving when cold or heat reach reservation threshold at blower fan, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.Wherein, multi-split air conditioner is preferably one and drags many multi-split air conditioners.
According to one embodiment of present invention, described indoor set heat exchanger and described energy storage equipment serial or parallel connection.
According to the air conditioner controlling device of the embodiment of the present invention, energy storage equipment can be connected in the link circuit of compressor and indoor set heat exchanger, and like this, when compressor does not work, energy storage equipment can directly for indoor set heat exchanger provides cold or heat.In addition, energy storage equipment also can be in parallel with indoor set heat exchanger, and like this, when compressor quits work, energy storage equipment and indoor set heat exchanger form loop, for indoor set heat exchanger provides cold or heat.
According to one embodiment of present invention, described when determining described cold or described heat reaches described predetermined threshold, air-flow and described energy storage equipment is driven to carry out exchange heat by the blower fan of described multi-split air conditioner, specifically comprise: when determining described cold or described heat reaches described predetermined threshold, magnetic valve between described energy storage equipment and described compressor of outdoor unit is set to closed condition, disconnect described energy storage equipment and described compressor of outdoor unit, described energy storage equipment and described indoor set heat exchanger serial or parallel connection is made to form performance loop, be that described multi-split air conditioner carries out freezing or heating to be replaced described compressor of outdoor unit by described energy storage equipment.
According to the air-conditioner control method of the embodiment of the present invention, when the cold in energy storage equipment or heat reach reservation threshold, closed electromagnetic valve between energy storage equipment and compressor of outdoor unit, energy storage equipment and compressor of outdoor unit are disconnected, form refrigeration with interchanger serial or parallel connection or heat loop, like this, energy storage equipment can when cold or heat reach certain value, under the driving of blower fan, discharge the cold stored or heat, instead of compressor of outdoor unit is that multi-split air conditioner freezes or heats.By above technical scheme, solve the problem of multi-split air conditioner ability surplus under Smaller load state, effectively avoiding compressor of outdoor unit to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improving Consumer's Experience.
According to one embodiment of present invention, also comprise: according to the setting command received, for described energy storage equipment arranges described predetermined threshold, wherein, described predetermined threshold comprises the predetermined cold threshold value corresponding with described cold and the predetermined amount of heat threshold value corresponding with described heat.
According to the air-conditioner control method of the embodiment of the present invention, can arrange reservation threshold according to the actual needs of user, wherein reservation threshold can be predetermined cold threshold value or predetermined amount of heat threshold value.Such as, setting command here, can be the setting command to refrigeration design temperature, different refrigeration design temperatures can to there being different predetermined thresholds under different ambient temperature conditions.By above technical scheme, user can be arranged reservation threshold according to the actual conditions of oneself, improves Consumer's Experience.
By above technical scheme, when multi-split air conditioner carries out Smaller load refrigeration or heats, the incomplete cold of evaporation or heat can store by energy storage equipment, and discharge this cold or heat under driving when cold or heat reach certain value at blower fan, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 shows the block diagram of air conditioner controlling device according to an embodiment of the invention;
Fig. 2 shows the block diagram of multi-split air conditioner according to an embodiment of the invention;
Fig. 3 shows the flow chart of air-conditioner control method according to an embodiment of the invention;
Fig. 4 shows the structural representation of multi-split air conditioner according to an embodiment of the invention;
Fig. 5 shows the structural representation of multi-split air conditioner according to another embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the block diagram of air conditioner controlling device according to an embodiment of the invention.
As shown in Figure 1, air conditioner controlling device 100 according to an embodiment of the invention, comprising: indoor set heat exchanger 102, for carrying out heat exchange to the refrigerant of the compressor of outdoor unit from multi-split air conditioner; Energy storage equipment 104, is connected to indoor set heat exchanger 102, and when the refrigerant after indoor set heat exchanger 102 heat exchange flows through energy storage equipment 104, energy storage equipment 104 pairs of refrigerants carry out heat exchange again, to put aside cold or heat; Blower fan 106, the side of machine heat exchanger 102 disposed in the interior and energy storage equipment 104, during for the cold in energy storage equipment 104 or heat lower than predetermined threshold, the refrigerant in air-flow and indoor set heat exchanger 102 is driven to carry out exchange heat, and cold in energy storage equipment 104 or heat are when being more than or equal to predetermined threshold, driving air-flow and energy storage equipment 104 to carry out exchange heat, is that multi-split air conditioner carries out freezing or heating for being replaced compressor of outdoor unit by energy storage equipment 104.
According to the air conditioner controlling device 100 of the embodiment of the present invention, be made up of indoor set heat exchanger 102, energy storage equipment 104 and blower fan 106, wherein, indoor set heat exchanger 102 carries out heat exchange to the refrigerant from compressor of outdoor unit, for refrigeration space provides cold or heat, energy storage equipment 104 is used for the heat exchange again of the refrigerant from indoor set heat exchanger 102, thus cold or heat is stored in energy storage equipment 104.When multi-split air conditioner Smaller load runs, machine in part is had not open in system, refrigerant heat exchange in indoor set heat exchanger 102 will be caused incomplete, part cold or heat is also had not to utilize, by energy storage equipment 104 by the heat exchange again of the refrigerant from indoor set heat exchanger 102, unnecessary cold or heat storage can be got up, so as by store cold or heat carry out freezing or heating, save energy consumption.In the side of indoor set heat exchanger 102 and energy storage equipment 104, blower fan 106 is set, the quantity of blower fan 106 can be one or more, when the cold in energy storage equipment 104 or heat reach reservation threshold, drive the air-flow in air and the refrigerant in energy storage equipment 104 to carry out exchange heat by blower fan 106, it is that multi-split air conditioner carries out freezing or heating that such energy storage equipment 104 just can replace compressor of outdoor unit.By above technical scheme, when multi-split air conditioner carries out Smaller load refrigeration or heats, the incomplete cold of evaporation or heat can store by energy storage equipment 104, and under the driving of blower fan 106, discharge this cold or heat when cold or heat reach certain value, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.Wherein, multi-split air conditioner is preferably one and drags many multi-split air conditioners.
According to one embodiment of present invention, also comprise: controller, be connected to energy storage equipment 104, blower fan 106 and compressor of outdoor unit, for judging whether cold in energy storage equipment 104 or heat reach predetermined threshold, for the duty according to judged result adjustment energy storage equipment 104, wherein, the duty of energy storage equipment 104 comprises cold-storage state, heat storage state, refrigerating state, heats state and holding state.
According to the air conditioner controlling device 100 of the embodiment of the present invention, when the cold that energy storage equipment 104 stores or heat reach predetermined threshold, controller will by the cold in energy storage equipment 104 or thermal release, and drive blower fan 106 to carry out heat exchange for this cold or heat.Under cold-storage state, energy storage equipment 104 is for storing cold, under heat storage state, energy storage equipment 104 for store heat, under refrigerating state, energy storage equipment 104 is for released cold quantity, heating under state, energy storage equipment 104 for release heat, when multi-split air conditioner is in non-Smaller load running status, energy storage equipment 104 is in holding state, and refrigerant does not flow through energy storage equipment 104 or energy storage equipment 104 does not work when flowing through energy storage equipment 104.By above technical scheme, can drive blower fan 106 by controller, and control the duty of energy storage equipment 104, thus can more effectively control energy storage equipment 104.
According to one embodiment of present invention, indoor set heat exchanger 102 and energy storage equipment 104 serial or parallel connection.
According to the air conditioner controlling device 100 of the embodiment of the present invention, energy storage equipment 104 can be connected in the link circuit of compressor and indoor set heat exchanger 102, like this, when compressor does not work, energy storage equipment 104 can directly for indoor set heat exchanger 102 provides cold or heat.In addition, energy storage equipment 104 also can be in parallel with indoor set heat exchanger 102, and like this, when compressor quits work, energy storage equipment 104 and indoor set heat exchanger 102 form loop, for indoor set heat exchanger 102 provides cold or heat.
According to one embodiment of present invention, also comprise: multiple magnetic valve, be distributed on energy storage equipment 104, pipeline between indoor set heat exchanger 102 and compressor of outdoor unit, be connected to controller, controlled the duty of energy storage equipment 104 for controller by the break-make of Controlling solenoid valve.
According to the air conditioner controlling device 100 of the embodiment of the present invention, controller is also connected to multiple magnetic valve, be located on the pipeline between energy storage equipment 104 and compressor of outdoor unit, the duty of energy storage equipment 104 can be controlled by the break-make of Controlling solenoid valve, to save energy consumption and to avoid liquid hammer.
According to one embodiment of present invention, also comprise: throttle part, be connected to indoor set heat exchanger 102, for carrying out throttling process to refrigerant.
According to the air conditioner controlling device 100 of the embodiment of the present invention, also have throttle part, this throttle part is connected with indoor set heat exchanger 102, is used for controlling the flow of refrigerant, carries out throttling process to refrigerant.By above technical scheme, throttling process is carried out to refrigerant, avoid because refrigerant flowing is too fast and cause energy storage equipment 104 cold unnecessary in refrigerant or heat all can not be stored the problem of getting off, saving energy consumption.
Fig. 2 shows the block diagram of multi-split air conditioner according to an embodiment of the invention.
As shown in Figure 2, the multi-split air conditioner 200 of one embodiment of the present of invention, comprising: off-premises station 202; And multiple indoor set 204, be connected to off-premises station 202, each indoor set in multiple indoor set 204 comprises the air conditioner controlling device 100 in the embodiment shown in Fig. 1.Therefore, multi-split air conditioner 200 has the technique effect identical with the air conditioner controlling device 100 according to any one of technique scheme, does not repeat them here.
Fig. 3 shows the flow chart of air-conditioner control method according to an embodiment of the invention.
As shown in Figure 3, air-conditioner control method according to an embodiment of the invention, for the air conditioner controlling device 100 according to any one of technique scheme, comprising:
Step 302, determines whether reach predetermined threshold with the cold in the energy storage equipment that the indoor set heat exchanger of multi-split air conditioner is connected or heat.
Step 304, when determining cold or heat reaches predetermined threshold, driving air-flow and energy storage equipment to carry out exchange heat by the blower fan of multi-split air conditioner, is that multi-split air conditioner carries out freezing or heating for replacing compressor of outdoor unit by energy storage equipment.
According to the air-conditioner control method of the embodiment of the present invention, under refrigeration or heating mode, can judge whether cold in energy storage equipment or heat reach predetermined threshold, if reach predetermined threshold, illustrate that the cold that energy storage equipment stores or heat are enough to carry out Smaller load refrigeration or heat, drive the air-flow in air and the refrigerant in energy storage equipment to carry out exchange heat by blower fan, it is that multi-split air conditioner carries out freezing or heating that such energy storage equipment just can replace compressor of outdoor unit.By above technical scheme, when multi-split air conditioner carries out Smaller load operation, the incomplete cold of exchange or heat can store by energy storage equipment, and discharge this cold or heat under driving when cold or heat reach reservation threshold at blower fan, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.Wherein, multi-split air conditioner is preferably one and drags many multi-split air conditioners.
According to one embodiment of present invention, described indoor set heat exchanger and described energy storage equipment serial or parallel connection.
According to the air conditioner controlling device of the embodiment of the present invention, energy storage equipment can be connected in the link circuit of compressor and indoor set heat exchanger, and like this, when compressor does not work, energy storage equipment can directly for indoor set heat exchanger provides cold or heat.In addition, energy storage equipment also can be in parallel with indoor set heat exchanger, and like this, when compressor quits work, energy storage equipment and indoor set heat exchanger form loop, for indoor set heat exchanger provides cold or heat.
According to one embodiment of present invention, step 304 specifically comprises: when determining cold or heat reaches predetermined threshold, magnetic valve between energy storage equipment and compressor of outdoor unit is set to closed condition, disconnect energy storage equipment and compressor of outdoor unit, make energy storage equipment and indoor set heat exchanger serial or parallel connection form performance loop, carry out freezing or heating to be replaced compressor of outdoor unit by energy storage equipment for multi-split air conditioner.
According to the air-conditioner control method of the embodiment of the present invention, when the cold in energy storage equipment or heat reach reservation threshold, closed electromagnetic valve between energy storage equipment and compressor of outdoor unit, energy storage equipment and compressor of outdoor unit are disconnected, form refrigeration with interchanger serial or parallel connection or heat loop, like this, energy storage equipment can when cold or heat reach certain value, under the driving of blower fan, discharge the cold stored or heat, instead of compressor of outdoor unit is that multi-split air conditioner freezes or heats.By above technical scheme, solve the problem of multi-split air conditioner ability surplus under Smaller load state, effectively avoiding compressor of outdoor unit to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improving Consumer's Experience.
According to one embodiment of present invention, also comprise: according to the setting command received, for energy storage equipment arranges predetermined threshold, wherein, predetermined threshold comprises the predetermined cold threshold value corresponding with cold and the predetermined amount of heat threshold value corresponding with heat.
According to the air-conditioner control method of the embodiment of the present invention, can arrange reservation threshold according to the actual needs of user, wherein reservation threshold can be predetermined cold threshold value or predetermined amount of heat threshold value.Such as, setting command here, can be the setting command to refrigeration design temperature, different refrigeration design temperatures can to there being different predetermined thresholds under different ambient temperature conditions.By above technical scheme, user can be arranged reservation threshold according to the actual conditions of oneself, improves Consumer's Experience.
In addition, in multi-split air conditioner, Smaller load may be several indoor sets unlatchings wherein when running, predetermined cold threshold value or the predetermined amount of heat threshold value of the energy storage equipment of these several indoor sets can according to circumstances be set to identical or different, and in accumulation of energy process, the energy storage equipment of these several indoor sets reaches time of respective predetermined cold threshold value or predetermined amount of heat threshold value also can be different, so preferred control method can be: when these several the indoor sets opened all reach respective predetermined cold threshold value or predetermined amount of heat threshold value, the compressor of outdoor unit of multi-split air conditioner is just out of service, and when the energy storage equipment of certain indoor set is wherein lower than its minimum predetermined cold threshold value or predetermined amount of heat threshold value, the compressor of outdoor unit of multi-split air conditioner starts again to start.
Fig. 4 shows the structural representation of multi-split air conditioner according to an embodiment of the invention.
As shown in Figure 4, multi-split air conditioner is when non-Smaller load refrigeration, compressor of outdoor unit normally runs, magnetic valve (a) is opened, magnetic valve (b) and magnetic valve (c) are closed, the HTHP refrigerant flowed out in condenser enters interior machine from A end and carries out condensation by condenser, after carrying out throttling by throttle part again, the subcooled liquid of low-temp low-pressure or the refrigerant of gas liquid mixture will be formed, evaporation endothermic in indoor set heat exchanger, room air blows over indoor set heat exchanger under the driving of blower fan and refrigerant carries out exchange heat, freeze in implementation space, refrigerant machine in magnetic valve (a) flows out afterwards, form a circulation.Wherein, multi-split air conditioner is preferably one and drags many multi-split air conditioners.
Multi-split air conditioner is when Smaller load freezes, and only in some, machine is opened, and for machine in unlatching, magnetic valve (a) cuts out, and magnetic valve (b) and (c) open.The HTHP refrigerant flowed out in outer machine condenser enters interior machine from A end, after the throttling of throttle part, forms subcooled liquid or the gas-liquid two-phase state of low-temp low-pressure, evaporation endothermic in indoor set heat exchanger, is refrigeration space refrigeration.Because now load is less, refrigerant is incomplete in potential evaporation, also may be in gas liquid mixture state.If directly get back to compressor of outdoor unit, the danger of compressor of outdoor unit liquid hammer may be caused.And in this programme, because magnetic valve (a) cuts out, magnetic valve (b) and (c) open, the refrigerant of gas-liquid mixed through energy storage equipment, can continue evaporation endothermic wherein, is accumulated in energy storage equipment by unnecessary cold.After energy storage equipment have accumulated certain cold, stop the running of outer machine compressor of outdoor unit, remained in operation by blower fan, room air blows over energy storage equipment under the effect of blower fan, is cooled air by energy storage equipment, freezes in implementation space.
In order to ensure that air and energy storage equipment carry out sufficient exchange heat, the surface of energy storage equipment can adopt many fin structure or other structures, to strengthen convection transfer rate or heat exchange area.
More than set forth the solution of the present invention for Smaller load refrigeration.When Smaller load heats, the control method of each parts is similar with refrigeration, and difference is only to flow to interior machine at stage regenerator refrigerant from B end, first after regenerative apparatus again through condenser, then in flowing out from A end, outer machine got back to by machine, and refrigerant changes condensation heat release into by evaporation endothermic.
Fig. 5 shows the structural representation of multi-split air conditioner according to another embodiment of the invention.
As shown in Figure 5, in cooling mode, when the non-Smaller load of multi-split air conditioner runs, magnetic valve (d) is opened, and magnetic valve (e) cuts out, and energy storage equipment does not work.Refrigerant flows through indoor set heat exchanger after electric expansion valve throttling, and evaporates wherein, and blower fan drives room air to be cooled by indoor set heat exchanger, reaches the object of refrigeration.When multi-split air conditioner Smaller load runs, for machine in unlatching, magnetic valve (e) is opened, and magnetic valve (d) can be opened, and also can close.Refrigerant flows through cold-storage device after electric expansion valve throttling, when namely (d) does not open, or flow through cold-storage device and indoor set heat exchanger simultaneously, when namely (d) opens, blower fan drives room air and energy storage equipment or indoor set heat exchanger to carry out heat exchange, reach the object of refrigeration, energy storage equipment is also at accumulation cold simultaneously.After the cold of energy storage equipment accumulation arrives certain threshold values, compressor of outdoor unit is out of service, and blower fan continues to drive room air and energy storage equipment to carry out heat exchange, is freezed to room air by the cold accumulated in advance.
More than set forth the solution of the present invention for Smaller load refrigeration.When Smaller load heats, the control method of each parts is similar with refrigeration, and difference is only to flow to interior machine at stage regenerator refrigerant from B end, first after regenerative apparatus again through condenser, then in flowing out from A end, outer machine got back to by machine, and refrigerant changes condensation heat release into by evaporation endothermic.
More than be described with reference to the accompanying drawings technical scheme of the present invention, by above technical scheme, when multi-split air conditioner carries out Smaller load refrigeration or heats, the incomplete cold of evaporation or heat can store by energy storage equipment, and discharge this cold or heat under driving when cold or heat reach certain value at blower fan, to replace compressor of outdoor unit for multi-split air conditioner refrigeration or to heat, both energy consumption had been saved, solve the problem of multi-split air conditioner ability surplus under Smaller load state, compressor of outdoor unit can also be effectively avoided to produce the problem of liquid hammer because working long hours, improve the security of multi-split air conditioner, improve Consumer's Experience.
In the present invention, term " first ", " second ", " the 3rd " object only for describing, and instruction or hint relative importance can not be interpreted as; Term " multiple " represents that two or more terms " are connected ", " connection " etc. all should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " another embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an air conditioner controlling device, for the indoor set of multi-split air conditioner, is characterized in that, comprising:
Indoor set heat exchanger, for carrying out heat exchange to the refrigerant of the compressor of outdoor unit from described multi-split air conditioner;
Energy storage equipment, is connected to described indoor set heat exchanger, and when the described refrigerant after described indoor set heat exchanger heat exchange flows through described energy storage equipment, described energy storage equipment carries out heat exchange again to described refrigerant, to put aside cold or heat;
Blower fan, be arranged on the side of described indoor set heat exchanger and described energy storage equipment, during for the described cold in described energy storage equipment or described heat lower than predetermined threshold, the described refrigerant in air-flow and described indoor set heat exchanger is driven to carry out exchange heat, and described cold in described energy storage equipment or described heat are when being more than or equal to described predetermined threshold, driving air-flow and described energy storage equipment to carry out exchange heat, is that described multi-split air conditioner carries out freezing or heating for being replaced described compressor of outdoor unit by described energy storage equipment.
2. air conditioner controlling device according to claim 1, is characterized in that, also comprises:
Controller, be connected to described energy storage equipment, described blower fan and described compressor of outdoor unit, for judging whether described cold in described energy storage equipment or described heat reach described predetermined threshold, for the duty adjusting described energy storage equipment according to judged result, wherein, the duty of described energy storage equipment comprises cold-storage state, heat storage state, refrigerating state, heats state and holding state.
3. air conditioner controlling device according to claim 2, is characterized in that, described indoor set heat exchanger and described energy storage equipment serial or parallel connection.
4. air conditioner controlling device according to any one of claim 1 to 3, is characterized in that, also comprises:
Multiple magnetic valve, be distributed on described energy storage equipment, pipeline between described indoor set heat exchanger and described compressor of outdoor unit, be connected to described controller, controlled the described duty of described energy storage equipment for described controller by the break-make controlling described magnetic valve.
5. air conditioner controlling device according to claim 4, is characterized in that, also comprises:
Throttle part, is connected to described indoor set heat exchanger, for carrying out throttling process to described refrigerant.
6. a multi-split air conditioner, is characterized in that, comprising:
Off-premises station; And
Multiple indoor set, is connected to described off-premises station, and each indoor set in described multiple indoor set has the air conditioner controlling device according to any one of claim 1 to 5.
7. an air-conditioner control method, for the air conditioner controlling device such as according to any one of claim 1 to 5, is characterized in that, comprising:
Determine whether reach predetermined threshold with the cold in the energy storage equipment that the indoor set heat exchanger of multi-split air conditioner is connected or heat;
When determining described cold or described heat reaches described predetermined threshold, driving air-flow and described energy storage equipment to carry out exchange heat by the blower fan of described multi-split air conditioner, is that described multi-split air conditioner carries out freezing or heating for being replaced described compressor of outdoor unit by described energy storage equipment.
8. air-conditioner control method according to claim 7, is characterized in that, described indoor set heat exchanger and described energy storage equipment serial or parallel connection.
9. air-conditioner control method according to claim 8, it is characterized in that, described when determining described cold or described heat reaches described predetermined threshold, drive air-flow and described energy storage equipment to carry out exchange heat by the blower fan of described multi-split air conditioner, specifically comprise:
When determining described cold or described heat reaches described predetermined threshold, magnetic valve between described energy storage equipment and described compressor of outdoor unit is set to closed condition, disconnect described energy storage equipment and described compressor of outdoor unit, making described energy storage equipment and described indoor set heat exchanger serial or parallel connection form performance loop, is that described multi-split air conditioner carries out freezing or heating to be replaced described compressor of outdoor unit by described energy storage equipment.
10. the air-conditioner control method according to any one of claim 7 to 9, is characterized in that, also comprises:
According to the setting command received, for described energy storage equipment arranges described predetermined threshold, wherein, described predetermined threshold comprises the predetermined cold threshold value corresponding with described cold and the predetermined amount of heat threshold value corresponding with described heat.
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Inventor after: Dong Shilong Inventor after: Yoshio Higuchi Inventor after: Zhao Zengyi Inventor after: Chen Yongrong Inventor after: Guo Jian Inventor before: Guo Jian Inventor before: Yoshio Higuchi Inventor before: Dong Shilong Inventor before: Zhao Zengyi Inventor before: Chen Yongrong |