CN114110737A - Outdoor unit, control method and system thereof, air conditioner and storage medium - Google Patents
Outdoor unit, control method and system thereof, air conditioner and storage medium Download PDFInfo
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- CN114110737A CN114110737A CN202010875166.3A CN202010875166A CN114110737A CN 114110737 A CN114110737 A CN 114110737A CN 202010875166 A CN202010875166 A CN 202010875166A CN 114110737 A CN114110737 A CN 114110737A
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- heat storage
- outdoor unit
- temperature
- control device
- electric control
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005338 heat storage Methods 0.000 claims abstract description 187
- 239000011232 storage material Substances 0.000 claims abstract description 110
- 239000003507 refrigerant Substances 0.000 claims description 52
- 238000000926 separation method Methods 0.000 claims description 38
- 238000004590 computer program Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000005856 abnormality Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
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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
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
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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
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention provides an outdoor unit, a control method and a control system thereof, an air conditioner and a storage medium, wherein the outdoor unit comprises: the electric control device is internally provided with an electric control device; and the heat storage device is arranged in the electric control device, a heat storage material is contained in the heat storage device, and the heat storage material is used for supplying heat to the electric control device. Under the extreme low temperature condition, heat is supplied to the electric control device through the heat storage material contained in the heat storage device to raise the working environment temperature of the electric control device, the working environment temperature of the electric control device is prevented from being too low, so that the working abnormality and the reliability of the electric control device are not ensured, the system is prevented from being shut down without accident, and the low-temperature heating effect of the air conditioning system is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an outdoor unit, an air conditioner, a control method of the outdoor unit, a control system of the outdoor unit and a computer readable storage medium.
Background
Under the condition of extreme low temperature, the temperature exceeds the normal working temperature range of electronic components of the outdoor unit of the air conditioning system. Therefore, at an extremely low temperature, part of electronic components work abnormally, the reliability is not ensured, the system is shut down without reasons, and the problem of poor low-temperature heating effect of the air conditioning system is caused.
Disclosure of Invention
The invention mainly aims to provide an outdoor unit, an air conditioner, a control method of the outdoor unit, a control system of the outdoor unit and a computer readable storage medium, and aims to solve the technical problem that electronic components of the outdoor unit work abnormally at extremely low temperature.
In order to achieve the above object, according to a first aspect of the present invention, there is provided an outdoor unit comprising: the electric control device is internally provided with an electric control device; and the heat storage device is arranged in the electric control device, a heat storage material is contained in the heat storage device, and the heat storage material is used for supplying heat to the electric control device.
Further, the outdoor unit further includes: the oil separation device is connected with the heat storage device and is used for providing a refrigerant to the heat storage device so as to enable the heat storage material to store heat; and the electromagnetic valve is arranged on a refrigerant pipeline connected between the heat storage device and the oil separation device and is used for controlling the connection or disconnection of the refrigerant pipeline.
Further, the outdoor unit further includes: and a first temperature detection means for detecting the temperature of the heat storage material.
Further, the outdoor unit further includes: and the second temperature detection device is used for detecting the temperature of the environment where the outdoor unit is located or the temperature of the electric control device.
In a second aspect of the present invention, an air conditioner is provided, which includes: an outdoor unit according to the first aspect; and any indoor unit is connected with the outdoor unit.
In a third aspect of the present invention, a method for controlling an outdoor unit includes an electric control device, a heat storage device, an electromagnetic valve, and an oil separation device, where the heat storage device contains a heat storage material, and the method includes: acquiring the temperature of the environment where the outdoor unit is located or the temperature of the electric control device, and acquiring the temperature of the heat storage material; and controlling the electromagnetic valve to be opened to enable the refrigerant in the oil separation device to enter the heat storage device so as to enable the heat storage material to store heat based on the condition that the temperature of the environment where the outdoor unit is located or the temperature of the electric control device is smaller than or equal to a first threshold value and the temperature of the heat storage material is smaller than or equal to a second threshold value.
Further, after the step of controlling the solenoid valve to be opened, the method further comprises the following steps: and controlling the electromagnetic valve to be closed based on the temperature of the environment where the outdoor unit is located or the temperature of the electric control device being greater than a third threshold value, wherein the third threshold value is greater than or equal to the first threshold value.
Further, after the step of controlling the solenoid valve to be opened, the method further comprises the following steps: the electromagnetic valve is controlled to close based on the temperature of the heat storage material being greater than a fourth threshold value, wherein the fourth threshold value is greater than or equal to the second threshold value.
In a fourth aspect of the present invention, a control system for an outdoor unit is provided, the control system comprising: a memory storing a computer program; and a processor that implements the method for controlling the outdoor unit according to the third aspect when executing the computer program.
The invention provides an outdoor unit and an electric control device, wherein an electric control device is arranged in the electric control device; the heat storage device is internally provided with a heat storage material, and the heat storage material is used for supplying heat to the electric control device; the oil separation device is connected with the heat storage device and is used for providing a refrigerant to the heat storage device so as to enable the heat storage material to store heat; the electromagnetic valve is arranged on a refrigerant pipeline connected between the heat storage device and the oil separation device and is used for controlling the connection or disconnection of the refrigerant pipeline; a memory storing a computer program; and a processor that implements the method for controlling the outdoor unit according to the third aspect when executing the computer program.
In a sixth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the method for controlling an outdoor unit according to the third aspect.
In a seventh aspect of the present invention, an air conditioner is provided, including: a plurality of indoor units; in the outdoor unit according to the fifth aspect, the outdoor unit is connected to any of the indoor units.
According to the technical scheme, the heat storage device is arranged in the electric control device, and the heat storage material contained in the heat storage device can store heat. Under the extreme low temperature condition, heat is supplied to the electric control device through the heat storage material contained in the heat storage device to raise the working environment temperature of the electric control device, the working environment temperature of the electric control device is prevented from being too low, so that the working abnormality and the reliability of the electric control device are not ensured, the system is prevented from being shut down without accident, and the low-temperature heating effect of the air conditioning system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 shows one of schematic block diagrams of an outdoor unit according to an embodiment of the present invention;
fig. 2 shows a second schematic block diagram of an outdoor unit according to an embodiment of the present invention;
fig. 3 is a schematic structural view showing an air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method of controlling an outdoor unit according to an embodiment of the present invention;
fig. 5 is a second flowchart illustrating a method of controlling an outdoor unit according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of a multi-split system according to an embodiment of the present invention;
fig. 7 is a schematic block diagram showing a control system of an outdoor unit according to an embodiment of the present invention;
fig. 8 is a schematic block diagram illustrating an outdoor unit according to an embodiment of the present invention;
fig. 9 shows a schematic block diagram of an air conditioner according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
An embodiment of the first aspect of the present invention provides an outdoor unit, which is described in detail with reference to fig. 1 and 2.
Fig. 1 is a schematic block diagram illustrating an outdoor unit 100 according to an embodiment of the present invention. The outdoor unit 100 includes:
an electric control device 102, wherein an electric control device 104 is arranged in the electric control device 102;
and a thermal storage device 106 provided in the electronic control device 102, the thermal storage device 106 containing therein a thermal storage material for supplying heat to the electronic control device 104.
In this embodiment, the outdoor unit 100 includes an electric control device 102, the electric control device 102 is an electric control box, and an electric control device 104 and a heat storage device 106 are disposed in the electric control device 102, where the number of the electric control device 104 is at least one. The electric control device 104 is a component for controlling the outdoor unit to operate, the electric control device 104 has a certain operating environment temperature range, and the normal operation of the electric control device 104 is affected when the operating environment temperature is lower than the lower limit value of the operating environment temperature range. Therefore, in the embodiment of the present invention, in consideration of this problem, the thermal storage device 106 is provided in the electronic control device 102, and the thermal storage material contained in the thermal storage device 106 can store heat. Under the condition of extreme low temperature (for example, below minus 30 ℃), heat is supplied to the electric control device 104 through the heat storage material contained in the heat storage device 106 so as to raise the working environment temperature of the electric control device 104, thereby avoiding abnormal work and uncertain reliability of the electric control device 104 caused by over-low working environment temperature of the electric control device 104, preventing the system from stopping without any reason and improving the low-temperature heating effect of the air conditioning system.
The heat storage material includes water, paraffin, or the like. The heat storage material can release a large amount of heat into the electronic control device 102 at a constant temperature through phase change, and the heat is provided for the electronic control device 104, so that the working environment temperature of the electronic control device 104 is not too low.
Further, as shown in fig. 2, the outdoor unit 100 further includes: an oil separation device 108 connected to the heat storage device 106, the oil separation device 108 being configured to supply a refrigerant to the heat storage device 106 to store heat in the heat storage material; and an electromagnetic valve 110 disposed on a refrigerant pipe connected between the heat storage device 106 and the oil separation device 108, wherein the electromagnetic valve 110 is used for controlling the connection or disconnection of the refrigerant pipe.
In this embodiment, the oil separator 108 and the heat storage device 106 are connected by a refrigerant pipe, and an electromagnetic valve 110 is further provided on the refrigerant pipe. When the outdoor unit is in an extremely low temperature condition, the heat storage material (such as water or paraffin) is in a solid state, when the control solenoid valve 110 is opened, the refrigerant pipeline is conducted, and the high-pressure and high-temperature refrigerant in the oil separation device enters the heat storage device 106 to heat the heat storage material, so that the heat storage material is changed into a liquid state and sensible heat is carried out, and heat storage is realized. When the heat accumulation is completed, the solenoid valve 110 is controlled to be closed to disconnect the refrigerant line. In the embodiment of the invention, the heat storage of the heat storage material is realized through the high-pressure high-temperature refrigerant in the oil separation device 108, a device for supplying heat to the heat storage material is not required to be additionally arranged, the cost is prevented from being increased, the heat storage of the heat storage material can be realized through the high-pressure high-temperature refrigerant only by controlling the opening and closing of the electromagnetic valve, and the control mode is simple.
In some embodiments, the temperature of the environment where the outdoor unit is located and the temperature of the heat storage material are collected, and when the temperature of the environment where the outdoor unit is located is less than or equal to t1 and the temperature of the heat storage material is less than or equal to t2, the electromagnetic valve 110 is controlled to be opened so that the high-pressure and high-temperature refrigerant in the oil separation device 108 enters the heat storage device 106, so that the heat storage material stores heat. When the temperature of the environment where the outdoor unit is located is higher than t3 or the temperature of the heat storage material is higher than t4, the electromagnetic valve 110 is controlled to be closed, the high-pressure and high-temperature refrigerant is stopped from entering the heat storage device 106, and the whole heat storage process is completed.
Or, the temperature of the electric control device 102 and the temperature of the heat storage material are collected, and when the temperature of the electric control device 102 is less than or equal to t1 and the temperature of the heat storage material is less than or equal to t2, the control electromagnetic valve 110 is opened to enable the high-pressure high-temperature refrigerant in the oil separation device 108 to enter the heat storage device 106, so that the heat storage material stores heat. When the temperature of the electric control device is higher than t3 or the temperature of the heat storage material is higher than t4, the electromagnetic valve 110 is controlled to be closed, the high-pressure and high-temperature refrigerant is stopped from entering the heat storage device 106, and the whole heat storage process is completed.
It should be noted that the temperature of the electronic control device 102 includes the ambient temperature inside the electronic control device 102 or the surface temperature of the electronic control device 102. When the temperature of the environment where the outdoor unit is located, the environment temperature in the electronic control device 102, or the surface temperature of the electronic control device 102 is low, the normal operation of the electronic control device 104 in the electronic control device 102 is affected, and therefore, the heat storage material needs to store heat, so that the heat is dissipated to the electronic control device 104 through the heat storage material to increase the operating environment temperature of the electronic control device 104.
It is worth understanding that, under the condition of extremely low temperature, the heat storage material is in a solid state, and is heated by a high-pressure high-temperature refrigerant, so that the heat storage material realizes phase change, the solid state is changed into a liquid state, and the sensible heat of the heat storage material is continuously heated, thereby realizing the heat storage process. In the heat dissipation process, as long as the temperature of the heat storage material is different from the temperature of the electronic control device 102, natural heat dissipation can be realized, and heat is transferred to the electronic control device 104.
Further, as shown in fig. 2, the outdoor unit 100 further includes: a first temperature detecting means 112, the first temperature detecting means 112 being for detecting the temperature of the heat storage material.
Further, as shown in fig. 2, the outdoor unit 100 further includes: the second temperature detecting device 114, the second temperature detecting device 114 is used for detecting the temperature of the environment where the outdoor unit 100 is located or the temperature of the electric control device 102.
In this embodiment, the first temperature detection device 112 is configured to detect the temperature of the heat storage material, and the second temperature detection device 114 is configured to detect the temperature of the environment in which the outdoor unit 100 is located or the temperature of the electric control device 102. Further, when the temperature of the environment where the outdoor unit is located or the temperature of the electric control device 102 is less than or equal to the first threshold value and the temperature of the heat storage material is less than or equal to the second threshold value, heat storage of the heat storage material is performed; when the temperature of the environment in which the outdoor unit is located or the temperature of the electronic control device 102 is greater than the third threshold value, or the temperature of the heat storage material is greater than or equal to the fourth threshold value, the heat storage by the heat storage material is stopped. Through the first temperature detection device 112 and the second temperature detection device 114, the accurate detection of the temperature is realized, so that the proper working environment temperature is provided for the electric control device 104 under the extremely low temperature condition, and the low-temperature operation reliability of the air conditioning system is effectively improved.
In a second aspect of the present invention, an air conditioner is provided, and fig. 3 shows a schematic structural diagram of the air conditioner according to an embodiment of the present invention. Wherein, this air conditioner includes:
an outdoor unit as in the embodiment of the first aspect described above;
an indoor unit 116, the indoor unit 116 being connected to an outdoor unit;
the air conditioner provided by the present invention includes an indoor unit 116 and the outdoor unit of the embodiment of the first aspect, and therefore, the air conditioner includes all the beneficial effects of the control method of the outdoor unit of the embodiment of the first aspect, which are not described herein again.
Wherein, the off-premises station includes:
an electronic control device 102, wherein an electronic control device 104 is installed in the electronic control device 102, and the number of the electronic control devices 104 is at least one (fig. 3 shows a case that there is one electronic control device 104);
a thermal storage device 106 installed in the electronic control device 102, the thermal storage device 106 containing a thermal storage material therein and supplying heat to the electronic control device 104 when the temperature of the thermal storage material is lower than the temperature of the electronic control device 102 (the ambient temperature in the electronic control device 102 or the surface temperature of the electronic control device 102);
the oil separation device 108 is connected with the heat storage device 106 through a refrigerant pipeline;
the electromagnetic valve 110 is arranged on a refrigerant pipeline between the heat storage device 106 and the oil separation device 108, when the temperature of the environment where the outdoor unit is located or the temperature of the electric control device 102 is smaller than or equal to a first threshold value, and the temperature of the heat storage material is smaller than or equal to a second threshold value, the electromagnetic valve is opened, the refrigerant pipeline is conducted, the high-pressure high-temperature refrigerant in the oil separation device 108 enters the heat storage device 106 to store heat of the heat storage material, when the temperature of the environment where the outdoor unit is located or the temperature of the electric control device 102 is greater than a third threshold value, and the temperature of the heat storage material is greater than a fourth threshold value, the electromagnetic valve is closed, the refrigerant pipeline is disconnected, the high-pressure high-temperature refrigerant in the oil separation device 108 stops entering the heat storage device 106, and the heat storage of the heat storage material is completed;
a first temperature detection device 112 configured to detect the temperature of the heat storage material;
the second temperature detecting device 114 is configured to detect a temperature of an environment in which the outdoor unit 100 is located or a temperature of the electric control device 102.
The outdoor unit further includes: an outdoor heat exchanger 118, a compressor 120, a low pressure liquid storage tank 122, a four-way valve 124, and a high pressure sensor 126. Wherein the low pressure liquid storage tank 122 plays the roles of storage, filtration, noise reduction and refrigerant buffering, and the high pressure sensor 126 is used for detecting the pressure value, so as to prevent the air conditioner from working when the pressure of the pipeline is higher. An outlet of the heat storage device 106 is connected to a four-way valve 124, forming a refrigerant circulation circuit.
In some embodiments, the air conditioner may be a multi-split system, i.e., the number of indoor units 116 is multiple.
In an embodiment of a third aspect of the present invention, a method for controlling an outdoor unit is provided, where the outdoor unit includes an electric control device, a heat storage device, an electromagnetic valve, and an oil separation device, and a heat storage material is contained in the heat storage device. The method for controlling the outdoor unit will be described in detail with reference to fig. 4 to 6.
Fig. 4 is a flowchart illustrating a method for controlling an outdoor unit according to an embodiment of the present invention. The control method comprises the following steps:
and step 404, controlling the electromagnetic valve to be opened to enable the refrigerant in the oil separation device to enter the heat storage device to enable the heat storage material to store heat based on the fact that the temperature of the environment where the outdoor unit is located or the temperature of the electric control device is smaller than or equal to a first threshold value and the temperature of the heat storage material is smaller than or equal to a second threshold value.
In this embodiment, the outdoor unit includes an electric control device, a heat storage device, an electromagnetic valve, and an oil separation device, the electric control device is provided with an electric control device and a heat storage device therein, the heat storage device contains a heat storage material therein, the oil separation device is connected with the heat storage device through a refrigerant pipeline, and the refrigerant pipeline is provided with the electromagnetic valve. When the temperature of the environment where the outdoor unit is located is smaller than or equal to a first threshold value and the temperature of the heat storage material is smaller than or equal to a second threshold value, or when the temperature of the electric control device is smaller than or equal to the first threshold value and the temperature of the heat storage material is smaller than or equal to the second threshold value, it indicates that the outdoor unit is in an extremely low temperature condition (for example, below-30 ℃), the heat storage material (for example, water or paraffin) is in a solid state, the refrigerant pipeline is conducted when the control electromagnetic valve is opened, and the high-pressure and high-temperature refrigerant in the oil separation device enters the heat storage device to heat the heat storage material, so that the heat storage material is changed into a liquid state and sensible heat is conducted, and heat storage is achieved. In the embodiment of the invention, the heat storage of the heat storage material is realized through the high-pressure high-temperature refrigerant in the oil separation device, a device for supplying heat to the heat storage material is not required to be additionally arranged, the cost is prevented from being increased, the heat storage of the heat storage material can be realized through the high-pressure high-temperature refrigerant only by controlling the opening and closing of the electromagnetic valve, and the control mode is simple.
Furthermore, after the heat storage material stores heat, the temperature of the heat storage material is higher than that of the electric control device, and natural heat dissipation is realized by the heat storage material at the moment so as to increase the working environment temperature of the electric control device, thereby avoiding abnormal working and unreliable reliability of the electric control device caused by over-low working environment temperature of the electric control device, preventing the system from stopping without a fault and improving the low-temperature heating effect of the air conditioning system.
It should be noted that the temperature of the electric control device includes an ambient temperature inside the electric control device or a surface temperature of the electric control device. When the temperature of the environment where the outdoor unit is located, the environment temperature in the electric control device or the surface temperature of the electric control device is low, the normal work of an electric control device in the electric control device can be influenced, so that the heat storage material is required to store heat, and the heat is dissipated to the electric control device through the heat storage material so as to improve the working environment temperature of the electric control device.
It is worth understanding that, under the condition of extremely low temperature, the heat storage material is in a solid state, and is heated by a high-pressure high-temperature refrigerant, so that the heat storage material realizes phase change, the solid state is changed into a liquid state, and the sensible heat of the heat storage material is continuously heated, thereby realizing the heat storage process. When heat is dissipated, natural heat dissipation can be realized as long as the temperature difference exists between the temperature of the heat storage material and the temperature of the electric control device, and heat is transferred to the electric control device.
Fig. 5 is a flowchart illustrating a method for controlling an outdoor unit according to an embodiment of the present invention. The control method comprises the following steps:
and step 506, controlling the electromagnetic valve to be closed based on the temperature of the environment where the outdoor unit is located or the temperature of the electric control device being greater than a third threshold value or the temperature of the heat storage material being greater than a fourth threshold value.
The third threshold is greater than or equal to the first threshold, and the fourth threshold is greater than or equal to the second threshold.
In this embodiment, when the temperature of the environment where the outdoor unit is located is greater than a third threshold, or the temperature of the electric control device is greater than the third threshold, or the temperature of the heat storage material is greater than a fourth threshold, the electromagnetic valve is controlled to be closed to disconnect the refrigerant pipeline, so as to complete heat storage of the heat storage material.
In a specific implementation, the present invention provides a method for controlling a multi-split air conditioning system, where the multi-split air conditioning system includes an outdoor unit and a plurality of indoor units. The heat storage device of the outdoor unit is arranged in the cavity of the electric control box of the outdoor unit, the oil separation tank of the multi-split system is connected with a pipeline, the pipeline is communicated with the oil separation tank and the heat storage device, and the pipeline is provided with an electromagnetic valve. The outdoor unit comprises a temperature sensing bulb for detecting the outdoor environment, and the temperature sensing bulb for detecting the temperature of the heat storage material is arranged in the heat storage device. The heat of the heat storage device of the multi-split system is introduced from a high-pressure high-temperature refrigerant of the multi-split system. Before the multi-split air-conditioning system is started or when the outdoor temperature is lower than a certain value, the heat storage quantity is released into the electric control box of the outdoor unit to heat the cavity space of the electronic components in the electric control box, so that the electronic components of the multi-split air-conditioning system can normally operate. Fig. 6 is a flowchart illustrating a control method of a multi-split system according to an embodiment of the present invention. The control method comprises the following steps:
in step 606, when the outdoor environment temperature T2> T3 or the heat storage material temperature T1> T4, the electromagnetic valve is closed.
In the embodiment, when the multi-split system is operated under the extreme low-temperature working condition which meets the outdoor environment temperature T2< T2 and the heat storage material temperature T1< T1, the electromagnetic valve is opened, the high-pressure and high-temperature refrigerant passing through the oil separation tank is guided to enter the heat storage device, and heat is released to the heat storage material in the heat storage device. The heat storage material is continuously heated, and when the temperature of the heat storage material T1 is greater than T4, the electromagnetic valve is closed. If the outdoor environment temperature T2> T3, the electromagnetic valve is always in a closed state. Wherein t1, t2, t3 and t4 are all constant temperature values.
Further, when the cavity temperature T3 of the electronic control box < the thermal storage material T1, the thermal storage material releases heat to the cavity of the electronic control box. And if the cavity temperature T3 of the electric control box is more than or equal to the heat storage material T1, the heat storage material stops releasing heat.
In a fourth aspect of the present invention, a control system for an outdoor unit is provided, and fig. 7 is a schematic block diagram illustrating a control system 700 for an outdoor unit according to an embodiment of the present invention. The control system 700 of the outdoor unit includes:
a memory 702, the memory 702 storing a computer program;
a processor 704, wherein the processor 704 executes a computer program to implement the method for controlling the outdoor unit according to the embodiment of the third aspect.
In the control system of the outdoor unit according to the present invention, the computer program is executed by the processor 704 to implement the steps of the control method of the outdoor unit according to the embodiment of the third aspect, so that the control system of the outdoor unit includes all the beneficial effects of the control method of the outdoor unit according to the embodiment of the third aspect, and details are not repeated herein.
Wherein the memory 702 and the processor 704 may be connected by a bus or other means. The Processor 704 may include one or more Processing units, and the Processor 704 may be a Central Processing Unit (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like.
In an embodiment of the fifth aspect of the present invention, an outdoor unit is provided, and fig. 8 shows a schematic block diagram of an outdoor unit 800 according to an embodiment of the present invention. The outdoor unit 800 includes:
an electric control device 802, wherein an electric control device is arranged in the electric control device 802;
the heat storage device 804 is used for accommodating a heat storage material in the heat storage device 804, and the heat storage material is used for supplying heat to the electric control device;
an oil separation device 806 connected to the heat storage device 804, the oil separation device 806 being configured to supply a refrigerant to the heat storage device 804 to store heat in the heat storage material;
the electromagnetic valve 808 is arranged on a refrigerant pipeline connected between the heat storage device 804 and the oil separation device 806, and the electromagnetic valve 808 is used for controlling the connection or disconnection of the refrigerant pipeline;
a memory 810, the memory 810 storing a computer program;
the processor 812, when the processor 812 executes the computer program, implements the method for controlling the outdoor unit according to the embodiment of the third aspect.
In the outdoor unit 800 of the present invention, the computer program is executed by the processor 812 to implement the steps of the method for controlling the outdoor unit according to the embodiment of the third aspect, so that the outdoor unit 800 includes all the advantages of the method for controlling the outdoor unit according to the embodiment of the third aspect, and details are not repeated herein.
The connection and operation of the electric control device 802, the heat storage device 804, the oil separation device 806, and the solenoid valve 808 are the same as those of the electric control device, the heat storage device, the oil separation device, and the solenoid valve according to the first embodiment described above, and thus, the description thereof is omitted.
Wherein the memory 810 and the processor 812 may be connected by a bus or other means. The processor 812 may include one or more processing units, and the processor 812 may be a central processing unit, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or the like chip.
In an embodiment of the sixth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the method for controlling the outdoor unit according to the embodiment of the third aspect.
In the computer-readable storage medium provided by the present invention, when being executed by a processor, a computer program implements the steps of the method for controlling an outdoor unit according to the embodiment of the third aspect, so that the computer-readable storage medium includes all the beneficial effects of the method for controlling an outdoor unit according to the embodiment of the third aspect, and details thereof are not repeated herein.
The computer-readable storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
In a seventh aspect of the present invention, an air conditioner is provided, and fig. 9 shows a schematic block diagram of an air conditioner 900 according to an embodiment of the present invention. Wherein, this air conditioner 900 includes:
a plurality of indoor units 902;
as described above in the outdoor unit 800 according to the fifth embodiment, any indoor unit 902 is connected to the outdoor unit 800.
The air conditioner 900 provided by the present invention includes an indoor unit 902 and the outdoor unit 800 of the embodiment of the fifth aspect, and therefore, the air conditioner 900 includes all the beneficial effects of the outdoor unit 800 of the embodiment of the fifth aspect, which are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An outdoor unit, comprising:
the electric control device is internally provided with an electric control device;
the heat storage device is arranged in the electric control device, a heat storage material is contained in the heat storage device, and the heat storage material is used for supplying heat to the electric control device.
2. The outdoor unit of claim 1, further comprising:
the oil separation device is connected with the heat storage device and is used for providing a refrigerant to the heat storage device so as to enable the heat storage material to store heat;
and the electromagnetic valve is arranged on a refrigerant pipeline connected between the heat storage device and the oil separation device and is used for controlling the connection or disconnection of the refrigerant pipeline.
3. The outdoor unit of claim 1 or 2, further comprising:
a first temperature detection device for detecting a temperature of the heat storage material.
4. The outdoor unit of claim 1 or 2, further comprising:
and the second temperature detection device is used for detecting the temperature of the environment where the outdoor unit is located or the temperature of the electric control device.
5. An air conditioner, comprising:
the outdoor unit of any one of claims 1 to 4; and
and any indoor unit is connected with the outdoor unit.
6. A control method of an outdoor unit, the outdoor unit comprising an electric control device, a heat storage device, an electromagnetic valve, and an oil separation device, the heat storage device containing a heat storage material therein, the control method comprising:
acquiring the temperature of the environment where the outdoor unit is located or the temperature of the electric control device, and acquiring the temperature of the heat storage material;
and controlling the electromagnetic valve to be opened to enable the refrigerant in the oil separation device to enter the heat storage device so as to enable the heat storage material to store heat based on the fact that the temperature of the environment where the outdoor unit is located or the temperature of the electric control device is smaller than or equal to a first threshold value and the temperature of the heat storage material is smaller than or equal to a second threshold value.
7. The outdoor unit control method of claim 6, further comprising, after the step of controlling the electromagnetic valve to be opened:
and controlling the electromagnetic valve to be closed based on the temperature of the environment where the outdoor unit is located or the temperature of the electric control device being greater than a third threshold value, wherein the third threshold value is greater than or equal to the first threshold value.
8. The outdoor unit control method of claim 6, further comprising, after the step of controlling the electromagnetic valve to be opened:
controlling the solenoid valve to close based on the temperature of the heat storage material being greater than a fourth threshold value, wherein the fourth threshold value is greater than or equal to the second threshold value.
9. A control system for an outdoor unit, the control system comprising:
a memory storing a computer program;
a processor that implements the method of controlling the outdoor unit according to any one of claims 6 to 8 when executing the computer program.
10. An outdoor unit, characterized in that,
the electric control device is internally provided with an electric control device;
the heat storage device contains a heat storage material, and the heat storage material is used for supplying heat to the electric control device;
the oil separation device is connected with the heat storage device and is used for providing a refrigerant to the heat storage device so as to enable the heat storage material to store heat;
the electromagnetic valve is arranged on a refrigerant pipeline connected between the heat storage device and the oil separation device and used for controlling the connection or disconnection of the refrigerant pipeline;
a memory storing a computer program;
a processor that implements the method of controlling the outdoor unit according to any one of claims 6 to 8 when executing the computer program.
11. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of controlling the outdoor unit of any one of claims 6 to 8.
12. An air conditioner, comprising:
a plurality of indoor units;
the outdoor unit of claim 10, which is connected to any one of the indoor units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875166.3A CN114110737A (en) | 2020-08-27 | 2020-08-27 | Outdoor unit, control method and system thereof, air conditioner and storage medium |
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| CN202010875166.3A CN114110737A (en) | 2020-08-27 | 2020-08-27 | Outdoor unit, control method and system thereof, air conditioner and storage medium |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299913A (en) * | 2007-04-30 | 2008-11-05 | 华硕电脑股份有限公司 | Electronic device being suitable for outdoor low temperature environment |
| KR20130039163A (en) * | 2011-10-11 | 2013-04-19 | 엘지전자 주식회사 | Air conditioner |
| CN106556079A (en) * | 2016-11-24 | 2017-04-05 | 广东美的暖通设备有限公司 | Off-premises station, the temperature-controlled process of electric-controlled box and device |
| CN206269344U (en) * | 2016-10-31 | 2017-06-20 | 广东美的制冷设备有限公司 | Air conditioner heat exchange system and air-conditioning |
| US20170328584A1 (en) * | 2015-02-27 | 2017-11-16 | Mitsubishi Electric Corporation | Air-conditioner control system and control method for air conditioner |
| JPWO2017077649A1 (en) * | 2015-11-06 | 2018-05-10 | 三菱電機株式会社 | Air conditioner outdoor unit |
| CN111503758A (en) * | 2020-05-12 | 2020-08-07 | 珠海格力电器股份有限公司 | Electric box with high heat exchange efficiency, air conditioner and control method of air conditioner |
-
2020
- 2020-08-27 CN CN202010875166.3A patent/CN114110737A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299913A (en) * | 2007-04-30 | 2008-11-05 | 华硕电脑股份有限公司 | Electronic device being suitable for outdoor low temperature environment |
| KR20130039163A (en) * | 2011-10-11 | 2013-04-19 | 엘지전자 주식회사 | Air conditioner |
| US20170328584A1 (en) * | 2015-02-27 | 2017-11-16 | Mitsubishi Electric Corporation | Air-conditioner control system and control method for air conditioner |
| JPWO2017077649A1 (en) * | 2015-11-06 | 2018-05-10 | 三菱電機株式会社 | Air conditioner outdoor unit |
| CN206269344U (en) * | 2016-10-31 | 2017-06-20 | 广东美的制冷设备有限公司 | Air conditioner heat exchange system and air-conditioning |
| CN106556079A (en) * | 2016-11-24 | 2017-04-05 | 广东美的暖通设备有限公司 | Off-premises station, the temperature-controlled process of electric-controlled box and device |
| CN111503758A (en) * | 2020-05-12 | 2020-08-07 | 珠海格力电器股份有限公司 | Electric box with high heat exchange efficiency, air conditioner and control method of air conditioner |
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