CN111102700A - Energy-saving control device, air conditioner and energy-saving control method of air conditioner - Google Patents
Energy-saving control device, air conditioner and energy-saving control method of air conditioner Download PDFInfo
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- CN111102700A CN111102700A CN201911214406.9A CN201911214406A CN111102700A CN 111102700 A CN111102700 A CN 111102700A CN 201911214406 A CN201911214406 A CN 201911214406A CN 111102700 A CN111102700 A CN 111102700A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004146 energy storage Methods 0.000 claims abstract description 291
- 238000010248 power generation Methods 0.000 claims abstract description 43
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 37
- 230000008569 process Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims 4
- 238000005265 energy consumption Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 description 18
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses an energy-saving control device, an air conditioner and an energy-saving control method thereof, wherein the device comprises: the system comprises a power generation unit, an energy storage unit and a control unit; the power generation unit is used for recovering at least part of energy dissipated by the outdoor unit under the condition that the outdoor unit of the air conditioner normally works, and generating power by utilizing at least part of energy obtained by recovery to obtain recovered electric energy; the energy storage unit is used for storing the recovered electric energy obtained by power generation; the control unit is used for controlling the power generation unit to generate power and controlling the energy storage unit to store the power under the condition that the outdoor unit of the air conditioner normally works; and under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner. The scheme of the invention can solve the problem of large standby energy consumption of the air conditioner and achieve the effect of reducing the standby energy consumption of the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an energy-saving control device, an air conditioner and an energy-saving control method thereof, in particular to an energy-saving circuit of a standby energy-saving air conditioner, the air conditioner and an energy-saving control method thereof.
Background
In some air conditioning technologies, in order to meet the requirement of low power consumption, the energy consumption of the external unit is generally turned off by cutting off the power supply of the external unit, but the standby energy consumption problem of the internal unit still has no good solution.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention aims to provide an energy-saving control device, an air conditioner and an energy-saving control method thereof to solve the problem of high standby energy consumption of the air conditioner and achieve the effect of reducing the standby energy consumption of the air conditioner.
The invention provides an energy-saving control device, comprising: the system comprises a power generation unit, an energy storage unit and a control unit; the power generation unit is used for recovering at least part of energy dissipated by the outdoor unit under the condition that the outdoor unit of the air conditioner normally works, and generating power by utilizing at least part of energy obtained by recovery to obtain recovered electric energy; the energy storage unit is used for storing the recovered electric energy obtained by power generation; the control unit is used for controlling the power generation unit to generate power and controlling the energy storage unit to store the power under the condition that the outdoor unit of the air conditioner normally works; and under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner.
Optionally, a power generation unit comprising: a rotating module and a wind power generator; the rotating module is arranged at an air outlet of an outdoor unit of the air conditioner and is used for rotating under the driving of wind energy generated in the process of dissipating heat or cold by a fan of the outdoor unit to generate mechanical energy; and the wind energy generator is used for converting mechanical energy generated by the rotating module in the rotating motion process into electric energy to be used as recovered electric energy.
Optionally, the energy storage unit comprises: the outdoor unit energy storage module and the indoor unit energy storage module; a control unit comprising: the outdoor unit energy storage control switch and the outdoor unit main control module, and the indoor unit energy storage control switch and the indoor unit main control module; the outdoor unit energy storage module is used for supplying power to the outdoor unit main control module under the control of the outdoor unit energy storage control switch; and the indoor unit energy storage module is used for supplying power to the indoor unit main control module under the control of the indoor unit energy storage control switch.
Optionally, the control unit further includes: the outdoor unit power supply control switch, the indoor unit power supply control switch and the communication module; the outdoor unit power supply control switch is used for controlling connection or disconnection between the alternating current power supply and the outdoor unit power supply module; the indoor unit power supply control switch is used for controlling the connection or disconnection between the alternating current power supply and the indoor unit power supply module; and the communication module is used for realizing information communication between the outdoor unit main control module and the indoor unit main control module.
Optionally, the control unit controls the power generation unit to generate power and controls the energy storage unit to store power, and includes: controlling the outdoor unit power supply control switch and the indoor unit control switch to be switched on so as to control the power generation unit to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are switched on; and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
Optionally, the controlling unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and the controlling unit includes: controlling an energy storage control switch of the indoor unit to be switched on and then controlling a power supply control switch of the indoor unit to be switched off under the condition that an operation signal of a user to the air conditioner is not received for more than a first set time and the recovered electric energy in the energy storage unit is greater than or equal to a preset electric energy threshold value; and after the energy storage control switch of the outdoor unit is controlled to be switched on, the power supply control switch of the outdoor unit is controlled to be switched off.
Optionally, the control unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and further includes: under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period, or under the condition that the electric energy recovered in the energy storage unit is reduced to be less than a preset electric energy threshold value, controlling the power supply control switch of the indoor unit to be switched on, and then controlling the energy storage control switch of the indoor unit to be switched off; and after the power supply control switch of the outdoor unit is controlled to be switched on, the energy storage control switch of the outdoor unit is controlled to be switched off.
Optionally, the control unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and further includes: and under the condition that the load of the outdoor unit of the air conditioner is received to work and the indoor unit is still in a standby state, controlling the outdoor unit to switch on and then controlling the outdoor unit energy storage switch to switch off.
In accordance with another aspect of the present invention, there is provided an air conditioner including: the energy-saving control device is described above.
In another aspect, the present invention provides an energy saving control method for an air conditioner, including: through the power generation unit, under the condition that an outdoor unit of the air conditioner normally works, at least part of energy dissipated by the outdoor unit is recovered, and at least part of energy obtained by recovery is utilized to generate power to obtain recovered electric energy; the recovered electric energy obtained by power generation is stored through the energy storage unit; through the control unit, under the condition that an outdoor unit of the air conditioner normally works, the power generation unit is controlled to generate power, and the energy storage unit is controlled to store the power; and under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner.
Optionally, the controlling the power generation unit to generate power and the energy storage unit to store power by the control unit includes: controlling the outdoor unit power supply control switch and the indoor unit control switch to be switched on so as to control the power generation unit to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are switched on; and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
Optionally, the controlling unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and the method includes: controlling an energy storage control switch of the indoor unit to be switched on and then controlling a power supply control switch of the indoor unit to be switched off under the condition that an operation signal of a user to the air conditioner is not received for more than a first set time and the recovered electric energy in the energy storage unit is greater than or equal to a preset electric energy threshold value; and after the energy storage control switch of the outdoor unit is controlled to be switched on, the power supply control switch of the outdoor unit is controlled to be switched off.
Optionally, the controlling unit is configured to control a power supply of the air conditioner to be disconnected and control the energy storage unit to supply power to the air conditioner, and the controlling unit further includes: under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period, or under the condition that the electric energy recovered in the energy storage unit is reduced to be less than a preset electric energy threshold value, controlling the power supply control switch of the indoor unit to be switched on, and then controlling the energy storage control switch of the indoor unit to be switched off; and after the power supply control switch of the outdoor unit is controlled to be switched on, the energy storage control switch of the outdoor unit is controlled to be switched off.
Optionally, the controlling unit is configured to control a power supply of the air conditioner to be disconnected and control the energy storage unit to supply power to the air conditioner, and the controlling unit further includes: and under the condition that the load of the outdoor unit of the air conditioner is received to work and the indoor unit is still in a standby state, controlling the outdoor unit to switch on and then controlling the outdoor unit energy storage switch to switch off.
According to the scheme, part of energy dissipated by the external unit is recycled and converted into electric energy to be stored, so that energy recycling is realized, and energy dissipation of the external unit is reduced.
Furthermore, according to the scheme of the invention, the standby electric energy of the air conditioner is provided by the consumed energy by converting the recovered energy into electric energy for standby use of the internal machine and the external machine, so that no additional electric energy is consumed, the standby energy consumption of the air conditioner is further reduced, and the energy-saving effect is improved.
Furthermore, according to the scheme of the invention, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored for the external unit and the internal unit to use when the external unit and the internal unit are in standby, so that the standby energy consumption of the air conditioner is further reduced, and the energy-saving effect is improved.
Therefore, according to the scheme of the invention, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored for the external unit and the internal unit to use when the external unit and the internal unit are in standby, so that the problem of high standby energy consumption of the air conditioner is solved, and the effect of reducing the standby energy consumption of the air conditioner is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an energy saving control apparatus according to the present invention;
fig. 2 is a schematic front view illustrating an outdoor unit outlet according to an embodiment of the air conditioner of the present invention;
FIG. 3 is a schematic diagram of a standby circuit of an embodiment of an air conditioner according to the present invention;
FIG. 4 is a flowchart illustrating a method for controlling a standby circuit of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating an energy saving control method according to an embodiment of the present invention.
The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:
101-rotating blades; 102-a generator; 201-outdoor unit circuit; 202-indoor unit circuitry; 203-a first filter rectification voltage reduction unit; 204-a second filter rectification voltage reduction unit; 205-a first MCU control unit; 206-a second MCU control unit; 207-a first energy storage device; 208-a second energy storage device; 209-a first on-off switch; 210-a second on-off switch; 211-a third on-off switch; 212-a fourth on-off switch; 213-external power line; 214-low voltage communication line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, there is provided an energy saving control apparatus. Referring to fig. 1, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The energy-saving control device may include: the device comprises a power generation unit, an energy storage unit and a control unit.
In an optional example, the power generation unit may be configured to recover at least a portion of energy dissipated by an outdoor unit of the air conditioner under a normal operation condition of the outdoor unit, and generate power by using at least a portion of energy recovered to obtain recovered power.
Alternatively, the power generation unit may include: a rotating module and a wind power generator.
Specifically, the rotating module is arranged at an air outlet of an outdoor unit of the air conditioner, and can be used for rotating under the driving of wind energy generated in the process of dissipating heat or cold by a fan of the outdoor unit under the condition that the outdoor unit of the air conditioner normally works to generate mechanical energy.
Specifically, the wind energy generator, which is respectively connected to the center of the rotating module and the energy storage unit, can be used for converting mechanical energy generated by the rotating module in the process of rotating motion into electric energy as recovered electric energy.
For example, the energy dissipated by the external unit can be recycled through the wind energy generator and the energy storage device, and the strong power supply can be completely cut off when the air conditioner is in a standby state.
More specifically, the rotating module may be a rotating blade 101 and the wind energy generator or wind power generator may be a generator 102. If a rotary blade 101 is added at the air outlet of the outdoor unit, when the outdoor unit normally works, heat or cold is dissipated by the fan, and wind energy is generated at the same time, so that the rotary blade 101 can be driven to rotate. The center of the rotating blade 101 is connected with a generator 102, and the generator 102 is connected to an energy storage device. The generator 102 converts the mechanical energy of the rotating blades 101 into electrical energy and stores it in an energy storage device.
Therefore, at least part of energy dissipated by the outdoor unit is recovered through the rotating module and the wind energy generator, and at least part of energy obtained through recovery is utilized for generating electricity, so that at least part of energy dissipated by the outdoor unit can be recovered and utilized, and waste of dissipated energy of the outdoor unit is reduced.
In an alternative example, the energy storage unit may be configured to store the recovered electric energy obtained by power generation, that is, store the recovered electric energy obtained by power generation.
In an optional example, the control unit may be configured to control the power generation unit to generate power and control the energy storage unit to store power when the outdoor unit of the air conditioner is operating normally. And under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner. The outdoor unit circuit can be one, and the indoor unit circuit can be one. Of course, the number of the indoor unit circuits can be flexibly set according to the needs, for example, the number of the indoor unit circuits can be multiple, at this time, the outdoor unit circuit 201 is provided with multiple low-voltage communication lines, each indoor unit circuit is connected with the outdoor unit circuit 201 through a communication line, and the energy storage device is connected with the generator.
For example, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored for the external unit and the internal unit to use when in standby, and the standby energy consumption of the air conditioner is further reduced. The energy dissipation of the outdoor unit is reduced by recycling the energy; meanwhile, the recovered energy is converted into electric energy for standby use of the internal machine and the external machine, the standby electric energy of the air conditioner is provided by the consumed energy, extra electric energy is not consumed, the standby energy consumption of the air conditioner is further reduced, and the scheme has the advantages of obvious energy-saving effect, controllable cost and high practicability.
Therefore, part of energy dissipated by the outer unit is recycled and converted into electric energy to be stored for the outer unit and the inner unit to be used when the outer unit and the inner unit are in standby, the standby electric energy of the air conditioner can be provided by the lost energy, extra electric energy is not consumed any more, and the standby energy consumption of the air conditioner is reduced.
Optionally, the energy storage unit may include: the outdoor unit energy storage module and the indoor unit energy storage module. For example, the energy storage device may preferably be a rechargeable battery and its voltage and current regulation circuit, and the energy storage devices in the outdoor unit circuit 201 and the indoor unit circuit 202 are both connected to the generator.
Optionally, the control unit may include: the outdoor unit energy storage control switch, the outdoor unit main control module, the indoor unit energy storage control switch and the indoor unit main control module.
For example, the outdoor unit energy storage module may be the first energy storage device 207, the outdoor unit energy storage control switch may be the third disconnecting switch 211, and the outdoor unit main control module in the control unit may be the first MCU control unit 205. The indoor unit energy storage module may be the second energy storage device 208, the indoor unit energy storage control switch may be the fourth disconnect switch 212, and the outdoor unit main control module in the control unit may be the second MCU control unit 206. The first energy storage device 207 and the second energy storage device 208 are used as energy storage devices and can supply power to the central control module.
Specifically, the outdoor unit energy storage module is arranged on the outdoor unit side, is connected to the outdoor unit main control module in the control unit through the outdoor unit energy storage control switch, and can be used for supplying power to the outdoor unit main control module under the control of the outdoor unit energy storage control switch.
Specifically, the indoor unit energy storage module is arranged on the indoor unit side, is connected to the indoor unit main control module in the control unit through the indoor unit energy storage control switch, and can be used for supplying power to the indoor unit main control module under the control of the indoor unit energy storage control switch.
Therefore, through the indoor unit energy storage module and the outdoor unit energy storage module, the control modules on the respective sides can be supplied with power through the energy storage modules on the respective sides, and the flexibility and the reliability of control can be guaranteed.
Further optionally, the control unit may further include: the outdoor unit power supply control switch, the indoor unit power supply control switch and the communication module. For example, the outdoor unit power supply control switch may be the first on/off switch 209. The indoor unit power supply control switch may be on/off of the second on/off switch 210, and for example, the on/off switches (e.g., the first on/off switch 209, the second on/off switch 210, the third on/off switch 211, and the fourth on/off switch 212) may preferably be relay switches. The first MCU control unit 205 and the second MCU control unit 206, as central control modules, may be configured to control the operation of the air conditioner, and respectively control the on/off of the third on/off switch 211, the first on/off switch 209, the fourth on/off switch 212, and the second on/off switch 210.
Specifically, the outdoor unit power supply control switch is arranged on the outdoor unit side and can be used for controlling connection or disconnection between the alternating current power supply and the outdoor unit power supply module. For example, the ac power source may be commercial power introduced from the external power supply line 13. The outdoor unit power supply module may be the first filtering, rectifying and voltage-reducing unit 203, and may be configured to supply power to an outdoor unit main control module, such as the first MCU control unit 205, and other power consuming parts of the outdoor unit.
Specifically, the indoor unit power supply control switch is arranged on the indoor unit side and can be used for controlling connection or disconnection between the alternating current power supply and the indoor unit power supply module. For example, the indoor unit power supply module may be the second filtering, rectifying and voltage-reducing unit 204, and may be configured to supply power to the indoor unit main control module, such as the second MCU control unit 206, and other power consuming parts of the indoor unit.
For example, L, N may be used as power lines for connecting to the live and neutral lines of a power grid, respectively. The first filtering, rectifying and voltage-reducing unit 203 and the second filtering, rectifying and voltage-reducing unit 204 can be used for performing rectification filtering, alternating current-direct current conversion and voltage reduction on alternating current to supply power to a later-stage circuit.
Specifically, the communication module may be configured to implement information communication between the outdoor unit main control module and the indoor unit main control module. For example, the communication module may be a low-voltage communication line 214, and may be used to implement information transmission between the first MCU control unit 205 and the second MCU control unit 206.
More specifically, the air conditioner may include an outdoor unit circuit 201 and an indoor unit circuit 202, wherein a power wiring L, a common line N, and a ground line are connected between the outdoor unit circuit 201 and the indoor unit circuit 202, commercial power is connected through an external power line 213, and a low-voltage communication line 214 is connected between the outdoor unit circuit 201 and the indoor unit circuit 202. The outdoor unit circuit 201 may include a first filtering, rectifying and voltage-reducing unit 203, a first MCU control unit 205, a first energy storage device 207, a first on-off switch 209, and a third on-off switch 211. The first filtering, rectifying and voltage-reducing unit 203 is connected in parallel with the first MCU control unit 205, one end of the first filtering, rectifying and voltage-reducing unit 203 is connected to the power wiring L through the first on-off switch 209, the other end is connected to the common line, one end of the first energy storage device 207 is connected to the first MCU control unit 205 through the third on-off switch 211, and the other end is directly connected to the first MCU control unit 205. The indoor unit circuit 202 may include a second rectified and rectified voltage step-down unit 204, a second MCU control unit 206, a second energy storage device 208, a second on-off switch 210, and a fourth on-off switch 212. The second filtering, rectifying and voltage-reducing unit 204 is connected in parallel with the second MCU control unit 206, one end of the second filtering, rectifying and voltage-reducing unit 204 is connected to the power line L through a second on-off switch 210, the other end is connected to the common line, one end of the second energy storage device 208 is connected to the second MCU control unit 206 through a fourth on-off switch 212, and the other end is directly connected to the second MCU control unit 206.
Therefore, the communication and control between the indoor unit side and the outdoor unit side are realized through the outdoor unit power supply control switch, the indoor unit power supply control switch and the communication module, the energy consumption of the outdoor side can be at least partially used for standby power supply of the indoor unit and the outdoor unit, the energy consumption is reduced, and the environmental protection property is good.
Optionally, the controlling unit controls the power generating unit to generate power and controls the energy storage unit to store power may include: controlling both an outdoor unit power supply control switch and an indoor unit control switch to be switched on at the indoor unit side and the outdoor unit side so as to control a power generation unit to generate power under the condition that both the outdoor unit power supply control switch and the indoor unit control switch are switched on; and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off at the indoor unit side and the outdoor unit side so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
For example, the indoor and outdoor power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both on, and the energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both off. That is, when the air conditioner is operating normally, the first on-off switch 209 and the second on-off switch 210 are in an off state (i.e., in an on state), the third off switch 211 and the fourth off switch 212 are in an off state, the first MCU control unit 205 is powered by the first buck-rectifier unit 203, the second MCU control unit 206 is powered by the second buck-rectifier unit 204, and the first energy storage device 207 and the second energy storage device 208 store electric energy from the generator.
Therefore, the power supply of the inner machine side and the power supply of the outer machine side are used for supplying power and storing electricity for the energy storage module under the normal working condition, the normal work of the air conditioner is ensured, the energy consumption of the outdoor machine is at least partially recovered, and the air conditioner is reliable and environment-friendly.
Optionally, the controlling unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and may include: when the operation signal of the user to the air conditioner is not received more than the first set time and the recovered electric energy in the energy storage unit is greater than or equal to the preset electric energy threshold value, controlling the indoor unit energy storage control switch to be switched on and then controlling the indoor unit power supply control switch to be switched off on the indoor unit side; and controlling the power supply control switch of the outdoor unit to be switched off after controlling the energy storage control switch of the outdoor unit to be switched on at the side of the outdoor unit.
For example, when the indoor unit circuit 202 receives a standby signal, the second MCU control unit 206 transmits information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the fourth off-switch 212 to be turned off, and then controls the second off-switch 210 to be turned off, the first MCU control unit 205 controls the third off-switch 211 to be turned off, and then controls the first on-switch 209 to be turned off, at this time, the first MCU control unit 205 is powered by the first energy storage device 207, the second MCU control unit 206 is powered by the second energy storage device 208, the power wiring L is in a state of being completely disconnected from the outdoor unit circuit 201 and the indoor unit circuit 202, and no more power is transmitted, and standby power consumption is completely provided by the first energy storage device 207 and the second energy storage device 208.
That is, the user's non-operation time t is greater than or equal to t1, and the energy storage device is sufficient in electricity, so that the indoor unit sends the switch command s1 to the outdoor unit. Such as: in case the indoor unit circuit 202 receives a standby signal, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214. The indoor and outdoor energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both on, and the power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both off.
Therefore, the standby internal and external machines are powered by the recovered electric energy under the condition that the standby condition is met and the stored electric quantity of the recovered electric energy is enough, so that the electric quantity of the power supply is saved.
Further optionally, the controlling unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and may further include: in the standby process of an outdoor unit and an indoor unit of the air conditioner, under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period or under the condition that the electric energy recovered in the energy storage unit is reduced to be smaller than a preset electric energy threshold value, the power supply control switch of the indoor unit is controlled to be switched on and then the energy storage control switch of the indoor unit is controlled to be switched off on at the side of the indoor unit; and on the outdoor unit side, after the outdoor unit power supply control switch is controlled to be switched on, the outdoor unit energy storage control switch is controlled to be switched off, so that the power generation unit is controlled to continue to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are both switched on, and the energy storage unit is controlled to continue to store power under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are both switched off.
For example, when a power-on signal is received or the electric energy of the energy storage devices (such as the first energy storage device 207 and the second energy storage device 208) is reduced to a preset threshold, the second MCU control unit 206 transmits the information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the second on-off switch 210 to be turned off and then controls the fourth on-off switch 212 to be turned off, the first MCU control unit 205 controls the first on-off switch 209 to be turned off and then controls the third on-off switch 211 to be turned off, at this time, the outdoor unit circuit 201 and the indoor unit circuit 202 are powered by the power wiring L, the first energy storage device 207 and the second energy storage device 208 do not provide electric energy any more, and the electric energy is converted to store electric energy from the.
Therefore, the normal work or reliable standby of the air conditioner can be ensured by receiving the starting signal in the standby state or utilizing the power supply to supply power to the internal and external units under the condition that the standby condition is met but the electric quantity of the stored recovered electric energy is insufficient.
Still further optionally, the controlling unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, and may further include: in the standby process of the outdoor unit and the indoor unit of the air conditioner, the outdoor unit control switch is controlled to be switched on and then the outdoor unit energy storage switch is controlled to be switched off under the condition that the outdoor unit load work of the air conditioner is required and the indoor unit is still in the standby state.
For example, when both the indoor unit and the outdoor unit of the air conditioner are in standby, for a specific reason, such as the need to electrically heat the compressor, the outdoor unit is required to operate under a load and the indoor unit is still in a standby state, at this time, the second MCU control unit 206 transmits information to the first MCU control unit 205 through the low voltage communication line 214, the first MCU control unit 205 controls the first on-off switch 209 to be turned off first and then controls the third off switch 211 to be turned off, at this time, the outdoor unit 201 is powered by the power wiring L, and the second MCU control unit 206 of the indoor unit 202 is still powered by the second energy storage device 208.
That is, when both the indoor unit and the outdoor unit of the air conditioner are in standby, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214 when a power-on signal is received or the power of the energy storage devices (e.g., the first energy storage device 207 and the second energy storage device 208) drops to a preset threshold. The outdoor unit power wiring switch (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201) is turned on, and the energy storage device switch (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) is turned off.
Generally speaking, the outdoor unit and the indoor unit are both powered by the power wiring in the initial state, when a correct standby operation signal is received and the electric quantity of the energy storage device is sufficient, the outdoor unit and the indoor unit are both switched to be powered by the energy storage device, otherwise, the outdoor unit and the indoor unit are kept in the initial state. Wherein, there are 3 kinds of situations under energy memory power supply state: in the first situation, if a correct starting operation signal is received, the outdoor unit and the indoor unit are switched to be powered by the power wiring, otherwise, the original state is kept. In the second situation, if the compressor needs to be electrically heated, the outdoor unit is switched to be powered by the power wiring, and the indoor unit is powered by the energy storage device until the first situation occurs or the energy storage device is insufficient in electric quantity. In the third situation, when the electric quantity of the energy storage device is insufficient, the outdoor unit and the indoor unit are directly switched to a state that both the outdoor unit and the indoor unit are powered by electric power wiring.
Therefore, under the condition that the standby condition is met but the load of the outdoor unit needs to work, the power supply of the outdoor unit is used for supplying power to the outdoor unit, and the power supply of the indoor unit is still supplied through the energy storage module of the indoor unit, so that the loss of the standby power supply of the indoor unit to the indoor unit is properly saved under the condition that the load of the outdoor unit works, and the energy-saving outdoor unit is reliable and energy-saving.
A large number of tests prove that by adopting the technical scheme of the invention, part of energy dissipated by the external machine is recovered and converted into electric energy to be stored, so that the energy is recycled, and the energy dissipation of the external machine is reduced.
According to an embodiment of the invention, an air conditioner corresponding to the energy-saving control device is also provided. The air conditioner may include: the energy-saving control device is described above.
In an alternative embodiment, considering that some air conditioners consume more power, the energy dissipated by the outer unit is more, and the dissipated energy is not recycled. According to the scheme provided by the invention, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored for the external unit and the internal unit to use when the external unit and the internal unit are in standby, so that the standby energy consumption of the air conditioner is further reduced. Therefore, energy dissipation of the outdoor unit is reduced through energy recycling; meanwhile, the recovered energy is converted into electric energy for standby use of the internal machine and the external machine, the standby electric energy of the air conditioner is provided by the consumed energy, extra electric energy is not consumed, the standby energy consumption of the air conditioner is further reduced, and the scheme has the advantages of obvious energy-saving effect, controllable cost and high practicability.
In an optional example, the energy dissipated by the outer machine can be recycled through the wind energy generator and the energy storage device, and the strong power supply can be completely cut off when the air conditioner is in a standby state.
In an alternative embodiment, a specific implementation process of the scheme of the present invention can be exemplarily described with reference to the examples shown in fig. 2 to 4.
In an alternative embodiment, referring to the example shown in fig. 2, in the air conditioner provided in the present invention, a rotating blade 101 is added at an air outlet of an outdoor unit, and when the outdoor unit normally operates, heat or cold is dissipated by a fan, and wind energy is generated at the same time, which can drive the rotating blade 101 to rotate. The center of the rotating blade 101 is connected with a generator 102, and the generator 102 is connected to an energy storage device. The generator 102 converts the mechanical energy of the rotating blades 101 into electrical energy and stores it in an energy storage device.
In fig. 3, L, N are used as power lines for connecting the live line and the neutral line of the power grid, respectively. The first filtering, rectifying and voltage-reducing unit 203 and the second filtering, rectifying and voltage-reducing unit 204 are used for performing rectification filtering, alternating current-direct current conversion and voltage reduction on alternating current to supply power to a post-stage circuit. The first MCU control unit 205 and the second MCU control unit 206 are used as central control modules for controlling the operation of the air conditioner and controlling the on/off of the third on/off switch 211 and the first on/off switch 209, and the fourth on/off switch 212 and the second on/off switch 210, respectively. The first energy storage device 207 and the second energy storage device 208 are used as energy storage devices and can supply power to the central control module.
In an alternative specific example, referring to the example shown in fig. 3, the standby circuit of an air conditioner according to the present invention may include an outdoor unit circuit 201 and an indoor unit circuit 202, wherein a power wiring L, a common line N and a ground line are connected between the outdoor unit circuit 201 and the indoor unit circuit 202, the outdoor unit circuit 201 and the indoor unit circuit 202 are connected to a commercial power through an external power line 213, and a low-voltage communication line 214 is further connected between the outdoor unit circuit 201 and the indoor unit circuit 202. The outdoor unit circuit 201 may include a first filtering, rectifying and voltage-reducing unit 203, a first MCU control unit 205, a first energy storage device 207, a first on-off switch 209, and a third on-off switch 211. The first filtering, rectifying and voltage-reducing unit 203 is connected in parallel with the first MCU control unit 205, one end of the first filtering, rectifying and voltage-reducing unit 203 is connected to the power wiring L through the first on-off switch 209, the other end is connected to the common line, one end of the first energy storage device 207 is connected to the first MCU control unit 205 through the third on-off switch 211, and the other end is directly connected to the first MCU control unit 205. The indoor unit circuit 202 includes a second filter rectification voltage-reduction unit 204, a second MCU control unit 206, a second energy storage device 208, a second on-off switch 210, and a fourth off-off switch 212. The second filtering, rectifying and voltage-reducing unit 204 is connected in parallel with the second MCU control unit 206, one end of the second filtering, rectifying and voltage-reducing unit 204 is connected to the power line L through a second on-off switch 210, the other end is connected to the common line, one end of the second energy storage device 208 is connected to the second MCU control unit 206 through a fourth on-off switch 212, and the other end is directly connected to the second MCU control unit 206.
Optionally, in the standby circuit of the air conditioner according to the aspect of the present invention, when the air conditioner is in normal operation, the first on-off switch 209 and the second on-off switch 210 are in an off state (i.e., in a closed state or in an on state), the third off switch 211 and the fourth off switch 212 are in an off state, the first MCU control unit 205 is powered by the first buck-boost filter unit 203, the second MCU control unit 206 is powered by the second buck-boost filter unit 204, and the first energy storage device 207 and the second energy storage device 208 store electric energy from the generator.
Optionally, when the indoor unit circuit 202 receives the standby signal, the second MCU control unit 206 transmits the information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the fourth off-switch 212 to be turned off, and then controls the second off-switch 210 to be turned off, the first MCU control unit 205 controls the third off-switch 211 to be turned off, and then controls the first on-off switch 209 to be turned off, at this time, the first MCU control unit 205 is powered by the first energy storage device 207, the second MCU control unit 206 is powered by the second energy storage device 208, the power wiring L is in a state of being completely disconnected from the outdoor unit circuit 201 and the indoor unit circuit 202, and no more power is transmitted, and the standby power consumption is completely provided by the first energy storage device 207 and the second energy storage device 208.
Optionally, when a power-on signal is received or the electric energy of the energy storage devices (such as the first energy storage device 207 and the second energy storage device 208) drops to a preset threshold, the second MCU control unit 206 transmits the information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the second on-off switch 210 to be turned off and then controls the fourth on-off switch 212 to be turned off, the first MCU control unit 205 controls the first on-off switch 209 to be turned off and then controls the third on-off switch 211 to be turned off, at this time, the outdoor unit circuit 201 and the indoor unit circuit 202 are powered by the electric power wiring L, the first energy storage device 207 and the second energy storage device 208 do not provide electric energy any more, and the electric energy is converted to store electric energy from the generator.
In addition, under the above standby condition, the outdoor unit load needs to work due to a specific reason and the indoor unit is still in the standby state, at this time, the second MCU control unit 206 transmits information to the first MCU control unit 205 through the low voltage communication line 214, the first MCU control unit 205 controls the first on-off switch 209 to be turned off first and then controls the third off-switch 211 to be turned off, at this time, the outdoor unit 201 is powered by the power wiring L, and the second MCU control unit 206 of the indoor unit 202 is still powered by the second energy storage device 208.
In an alternative specific example, referring to the example shown in fig. 4, the method for controlling a standby circuit of an air conditioner in the aspect of the present invention may include:
in step S301, a standby determination time t1, a power-on determination time t2, and switching commands S1, S2, and S3 are set.
In step S302, the indoor unit and the outdoor unit power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both turned on, and the energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both turned off.
Step S303 waits for a standby signal to be received.
And step S304, judging that the non-operation time t of the user is more than or equal to t1 and the electric quantity of the energy storage device is sufficient, if so, carrying out the next step, namely step 305, and otherwise, jumping to the step S302.
In step S305, the indoor unit sends a switch command S1 to the outdoor unit. For example: in case the indoor unit circuit 202 receives a standby signal, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214.
In step S306, the indoor unit and the outdoor unit energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both turned on, and the power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both turned off.
Step S307 waits for receiving a power-on signal.
In step S308, the compressor is electrically heated. For example: the electric heating is performed to prevent the compressor from freezing.
In step S309, the energy storage device is low in power.
S310, judging that the user non-operation time t is not less than t2, if yes, carrying out the next step, namely step S313, otherwise, jumping to step S306.
In S311, the indoor unit sends an opening/closing command S2 to the outdoor unit. For example: when a power-on signal is received or the power of the energy storage devices (such as the first energy storage device 207 and the second energy storage device 208) is reduced to a preset threshold, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214.
S312, the outdoor unit power wiring switch (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201) is turned on, and the energy storage device switch (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) is turned off.
S313, the indoor unit sends an on/off command S3 to the outdoor unit, and the process returns to step S302.
It can be seen that the air conditioner control unit is preset with a standby determination time t1, a power-on determination time t2, switch commands s1, s2, s3, t1 and t2 for preventing misoperation, and s1, s2 and s3 for controlling the switching of the power wiring and the energy storage device switch. And in the initial state, both the outdoor unit and the indoor unit are powered by the power wiring, when a correct standby operation signal is received and the electric quantity of the energy storage device is sufficient, both the outdoor unit and the indoor unit are switched to be powered by the energy storage device, and otherwise, the outdoor unit and the indoor unit are kept in the initial state. Wherein, there are 3 kinds of situations under energy memory power supply state: in the first situation, if a correct starting operation signal is received, the outdoor unit and the indoor unit are switched to be supplied with power by power wiring, otherwise, the original state is kept; in the second situation, if the compressor needs to be electrically heated, the compressor is switched to the outdoor unit and is powered by the power wiring, and the indoor unit is powered by the energy storage device until the first situation occurs or the electric quantity of the energy storage device is insufficient; in the third situation, when the electric quantity of the energy storage device is insufficient, the outdoor unit and the indoor unit are directly switched to a state that both the outdoor unit and the indoor unit are powered by electric power wiring.
Alternatively, the on-off switches (such as the first on-off switch 209, the second on-off switch 210, the third on-off switch 211, and the fourth on-off switch 212) in the solution of the present invention may preferably be relay switches.
Alternatively, the energy storage device in the solution of the present invention may preferably be a rechargeable battery and its voltage and current regulation circuit, and the energy storage devices in the outdoor unit circuit 201 and the indoor unit circuit 202 are both connected to the generator.
Optionally, the number of the indoor unit circuits in the solution of the present invention may be multiple, in this case, the outdoor unit circuit 201 is provided with multiple low voltage communication lines, each indoor unit circuit is connected to the outdoor unit circuit 201 through a communication line, and the energy storage device is connected to the generator.
Since the processing and functions of the air conditioner of this embodiment are basically corresponding to the embodiments, principles and examples of the apparatus shown in fig. 1, the description of this embodiment is not given in detail, and reference may be made to the related descriptions in the embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention converts the recovered energy into electric energy for standby use of the internal machine and the external machine, so that the standby electric energy of the air conditioner is provided by the consumed energy, no additional electric energy is consumed, the standby energy consumption of the air conditioner is further reduced, and the energy-saving effect is improved.
According to an embodiment of the present invention, there is also provided an energy saving control method for an air conditioner, which corresponds to the air conditioner, as shown in fig. 5, which is a schematic flow chart of an embodiment of the method of the present invention. The energy-saving control method of the air conditioner can comprise the following steps: step S110 to step S130.
At step S110, by the power generation unit, under a condition that the outdoor unit of the air conditioner is normally operated, at least a portion of energy dissipated by the outdoor unit is recovered, and at least a portion of energy obtained by the recovery is utilized to generate power, so as to obtain recovered electric energy.
At step S120, the recovered electric energy obtained by power generation is stored through the energy storage unit, that is, the recovered electric energy obtained by power generation is stored.
In step S130, the control unit controls the power generation unit to generate power and controls the energy storage unit to store power when the outdoor unit of the air conditioner is normally operated. And under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner. The outdoor unit circuit can be one, and the indoor unit circuit can be one. Of course, the number of the indoor unit circuits can be flexibly set according to the needs, for example, the number of the indoor unit circuits can be multiple, at this time, the outdoor unit circuit 201 is provided with multiple low-voltage communication lines, each indoor unit circuit is connected with the outdoor unit circuit 201 through a communication line, and the energy storage device is connected with the generator.
For example, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored for the external unit and the internal unit to use when in standby, and the standby energy consumption of the air conditioner is further reduced. The energy dissipation of the outdoor unit is reduced by recycling the energy; meanwhile, the recovered energy is converted into electric energy for standby use of the internal machine and the external machine, the standby electric energy of the air conditioner is provided by the consumed energy, extra electric energy is not consumed, the standby energy consumption of the air conditioner is further reduced, and the scheme has the advantages of obvious energy-saving effect, controllable cost and high practicability.
Therefore, part of energy dissipated by the outer unit is recycled and converted into electric energy to be stored for the outer unit and the inner unit to be used when the outer unit and the inner unit are in standby, the standby electric energy of the air conditioner can be provided by the lost energy, extra electric energy is not consumed any more, and the standby energy consumption of the air conditioner is reduced.
Alternatively, the controlling the power generation unit to generate power and the energy storage unit to store power in step S130 may include: controlling both an outdoor unit power supply control switch and an indoor unit control switch to be switched on at the indoor unit side and the outdoor unit side so as to control a power generation unit to generate power under the condition that both the outdoor unit power supply control switch and the indoor unit control switch are switched on; and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off at the indoor unit side and the outdoor unit side so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
For example, the indoor and outdoor power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both on, and the energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both off. That is, when the air conditioner is operating normally, the first on-off switch 209 and the second on-off switch 210 are in an off state (i.e., in an on state), the third off switch 211 and the fourth off switch 212 are in an off state, the first MCU control unit 205 is powered by the first buck-rectifier unit 203, the second MCU control unit 206 is powered by the second buck-rectifier unit 204, and the first energy storage device 207 and the second energy storage device 208 store electric energy from the generator.
Therefore, the power supply of the inner machine side and the power supply of the outer machine side are used for supplying power and storing electricity for the energy storage module under the normal working condition, the normal work of the air conditioner is ensured, the energy consumption of the outdoor machine is at least partially recovered, and the air conditioner is reliable and environment-friendly.
Alternatively, the step S130 of controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner through the control unit may include: when the operation signal of the user to the air conditioner is not received more than the first set time and the recovered electric energy in the energy storage unit is greater than or equal to the preset electric energy threshold value, controlling the indoor unit energy storage control switch to be switched on and then controlling the indoor unit power supply control switch to be switched off on the indoor unit side; and controlling the power supply control switch of the outdoor unit to be switched off after controlling the energy storage control switch of the outdoor unit to be switched on at the side of the outdoor unit.
For example, when the indoor unit circuit 202 receives a standby signal, the second MCU control unit 206 transmits information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the fourth off-switch 212 to be turned off, and then controls the second off-switch 210 to be turned off, the first MCU control unit 205 controls the third off-switch 211 to be turned off, and then controls the first on-switch 209 to be turned off, at this time, the first MCU control unit 205 is powered by the first energy storage device 207, the second MCU control unit 206 is powered by the second energy storage device 208, the power wiring L is in a state of being completely disconnected from the outdoor unit circuit 201 and the indoor unit circuit 202, and no more power is transmitted, and standby power consumption is completely provided by the first energy storage device 207 and the second energy storage device 208.
That is, the user's non-operation time t is greater than or equal to t1, and the energy storage device is sufficient in electricity, so that the indoor unit sends the switch command s1 to the outdoor unit. Such as: in case the indoor unit circuit 202 receives a standby signal, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214. The indoor and outdoor energy storage device switches (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) are both on, and the power wiring switches (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201 and the second on-off switch 210 at the power wiring L of the indoor unit circuit 202) are both off.
Therefore, the standby internal and external machines are powered by the recovered electric energy under the condition that the standby condition is met and the stored electric quantity of the recovered electric energy is enough, so that the electric quantity of the power supply is saved.
Optionally, the step S130 of controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner through the control unit may further include: in the standby process of an outdoor unit and an indoor unit of the air conditioner, under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period or under the condition that the electric energy recovered in the energy storage unit is reduced to be smaller than a preset electric energy threshold value, the power supply control switch of the indoor unit is controlled to be switched on and then the energy storage control switch of the indoor unit is controlled to be switched off on at the side of the indoor unit; and on the outdoor unit side, after the outdoor unit power supply control switch is controlled to be switched on, the outdoor unit energy storage control switch is controlled to be switched off, so that the power generation unit is controlled to continue to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are both switched on, and the energy storage unit is controlled to continue to store power under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are both switched off.
For example, when a power-on signal is received or the electric energy of the energy storage devices (such as the first energy storage device 207 and the second energy storage device 208) is reduced to a preset threshold, the second MCU control unit 206 transmits the information to the first MCU control unit 205 through the low voltage communication line 214, the second MCU control unit 206 controls the second on-off switch 210 to be turned off and then controls the fourth on-off switch 212 to be turned off, the first MCU control unit 205 controls the first on-off switch 209 to be turned off and then controls the third on-off switch 211 to be turned off, at this time, the outdoor unit circuit 201 and the indoor unit circuit 202 are powered by the power wiring L, the first energy storage device 207 and the second energy storage device 208 do not provide electric energy any more, and the electric energy is converted to store electric energy from the.
Therefore, the normal work or reliable standby of the air conditioner can be ensured by receiving the starting signal in the standby state or utilizing the power supply to supply power to the internal and external units under the condition that the standby condition is met but the electric quantity of the stored recovered electric energy is insufficient.
Further optionally, the step S130 of controlling, by the control unit, the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner may further include: in the standby process of the outdoor unit and the indoor unit of the air conditioner, the outdoor unit control switch is controlled to be switched on and then the outdoor unit energy storage switch is controlled to be switched off under the condition that the outdoor unit load work of the air conditioner is required and the indoor unit is still in the standby state.
For example, when both the indoor unit and the outdoor unit of the air conditioner are in standby, for a specific reason, such as the need to electrically heat the compressor, the outdoor unit is required to operate under a load and the indoor unit is still in a standby state, at this time, the second MCU control unit 206 transmits information to the first MCU control unit 205 through the low voltage communication line 214, the first MCU control unit 205 controls the first on-off switch 209 to be turned off first and then controls the third off switch 211 to be turned off, at this time, the outdoor unit 201 is powered by the power wiring L, and the second MCU control unit 206 of the indoor unit 202 is still powered by the second energy storage device 208.
That is, when both the indoor unit and the outdoor unit of the air conditioner are in standby, the second MCU control unit 206 in the indoor unit circuit 202 transmits information to the first MCU control unit 205 in the outdoor unit circuit 201 through the low voltage communication line 214 when a power-on signal is received or the power of the energy storage devices (e.g., the first energy storage device 207 and the second energy storage device 208) drops to a preset threshold. The outdoor unit power wiring switch (e.g., the first on-off switch 209 at the power wiring L of the outdoor unit circuit 201) is turned on, and the energy storage device switch (e.g., the third on-off switch 211 at the first energy storage device 207 and the fourth on-off switch 212 at the second energy storage device 208) is turned off.
Generally speaking, the outdoor unit and the indoor unit are both powered by the power wiring in the initial state, when a correct standby operation signal is received and the electric quantity of the energy storage device is sufficient, the outdoor unit and the indoor unit are both switched to be powered by the energy storage device, otherwise, the outdoor unit and the indoor unit are kept in the initial state. Wherein, there are 3 kinds of situations under energy memory power supply state: in the first situation, if a correct starting operation signal is received, the outdoor unit and the indoor unit are switched to be powered by the power wiring, otherwise, the original state is kept. In the second situation, if the compressor needs to be electrically heated, the outdoor unit is switched to be powered by the power wiring, and the indoor unit is powered by the energy storage device until the first situation occurs or the energy storage device is insufficient in electric quantity. In the third situation, when the electric quantity of the energy storage device is insufficient, the outdoor unit and the indoor unit are directly switched to a state that both the outdoor unit and the indoor unit are powered by electric power wiring.
Therefore, under the condition that the standby condition is met but the load of the outdoor unit needs to work, the power supply of the outdoor unit is used for supplying power to the outdoor unit, and the power supply of the indoor unit is still supplied through the energy storage module of the indoor unit, so that the loss of the standby power supply of the indoor unit to the indoor unit is properly saved under the condition that the load of the outdoor unit works, and the energy-saving outdoor unit is reliable and energy-saving.
Since the processing and functions implemented by the method of the present embodiment substantially correspond to the embodiments, principles and examples of the air conditioner shown in fig. 2 to 4, the description of the present embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.
A large number of tests prove that by adopting the technical scheme of the embodiment, part of energy dissipated by the external unit is recovered and converted into electric energy to be stored, and the electric energy is used for standby of the external unit and the internal unit, so that the standby energy consumption of the air conditioner is further reduced, and the energy-saving effect is improved.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (14)
1. An energy saving control apparatus, characterized by comprising: the system comprises a power generation unit, an energy storage unit and a control unit; wherein the content of the first and second substances,
the power generation unit is used for recovering at least part of energy dissipated by the outdoor unit under the condition that the outdoor unit of the air conditioner normally works, and generating power by utilizing at least part of energy obtained by recovery to obtain recovered electric energy;
the energy storage unit is used for storing the recovered electric energy obtained by power generation;
the control unit is used for controlling the power generation unit to generate power and controlling the energy storage unit to store the power under the condition that the outdoor unit of the air conditioner normally works; and under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner.
2. The apparatus of claim 1, wherein the power generation unit comprises: a rotating module and a wind power generator; wherein the content of the first and second substances,
the rotating module is arranged at an air outlet of an outdoor unit of the air conditioner and is used for rotating under the driving of wind energy generated in the process that a fan of the outdoor unit radiates heat or cold to generate mechanical energy;
and the wind energy generator is used for converting mechanical energy generated by the rotating module in the rotating motion process into electric energy to be used as recovered electric energy.
3. The apparatus of claim 1, wherein the energy storage unit comprises: the outdoor unit energy storage module and the indoor unit energy storage module;
a control unit comprising: the outdoor unit energy storage control switch and the outdoor unit main control module, and the indoor unit energy storage control switch and the indoor unit main control module;
wherein the content of the first and second substances,
the outdoor unit energy storage module is used for supplying power to the outdoor unit main control module under the control of the outdoor unit energy storage control switch;
and the indoor unit energy storage module is used for supplying power to the indoor unit main control module under the control of the indoor unit energy storage control switch.
4. The apparatus of any one of claims 1 to 3, wherein the control unit further comprises: the outdoor unit power supply control switch, the indoor unit power supply control switch and the communication module; wherein the content of the first and second substances,
the outdoor unit power supply control switch is used for controlling the connection or disconnection between the alternating current power supply and the outdoor unit power supply module;
the indoor unit power supply control switch is used for controlling the connection or disconnection between the alternating current power supply and the indoor unit power supply module;
and the communication module is used for realizing information communication between the outdoor unit main control module and the indoor unit main control module.
5. The device of claim 4, wherein the control unit controls the power generation unit to generate power and controls the energy storage unit to store power comprises:
controlling the outdoor unit power supply control switch and the indoor unit control switch to be switched on so as to control the power generation unit to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are switched on; and the number of the first and second groups,
and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
6. The apparatus of claim 4, wherein the control unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, comprising:
controlling an energy storage control switch of the indoor unit to be switched on and then controlling a power supply control switch of the indoor unit to be switched off under the condition that an operation signal of a user to the air conditioner is not received for more than a first set time and the recovered electric energy in the energy storage unit is greater than or equal to a preset electric energy threshold value; and the number of the first and second groups,
and after the energy storage control switch of the outdoor unit is controlled to be switched on, the power supply control switch of the outdoor unit is controlled to be switched off.
7. The apparatus of claim 6, wherein the control unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, further comprising:
under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period, or under the condition that the electric energy recovered in the energy storage unit is reduced to be less than a preset electric energy threshold value, controlling the power supply control switch of the indoor unit to be switched on, and then controlling the energy storage control switch of the indoor unit to be switched off; and the number of the first and second groups,
and after the power supply control switch of the outdoor unit is controlled to be switched on, the energy storage control switch of the outdoor unit is controlled to be switched off.
8. The apparatus of claim 6, wherein the control unit controls the power supply of the air conditioner to be disconnected and controls the energy storage unit to supply power to the air conditioner, further comprising:
and under the condition that the load of the outdoor unit of the air conditioner is received to work and the indoor unit is still in a standby state, controlling the outdoor unit to switch on and then controlling the outdoor unit energy storage switch to switch off.
9. An air conditioner, comprising: the energy saving control apparatus according to any one of claims 1 to 8.
10. An energy saving control method of an air conditioner according to claim 9, comprising:
through the power generation unit, under the condition that an outdoor unit of the air conditioner normally works, at least part of energy dissipated by the outdoor unit is recovered, and at least part of energy obtained by recovery is utilized to generate power to obtain recovered electric energy;
the recovered electric energy obtained by power generation is stored through the energy storage unit;
through the control unit, under the condition that an outdoor unit of the air conditioner normally works, the power generation unit is controlled to generate power, and the energy storage unit is controlled to store the power; and under the condition that the outdoor unit and the indoor unit of the air conditioner meet the standby condition, controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner.
11. The method of claim 10, wherein controlling the power generation unit to generate power and controlling the energy storage unit to store power by the control unit comprises:
controlling the outdoor unit power supply control switch and the indoor unit control switch to be switched on so as to control the power generation unit to generate power under the condition that the outdoor unit power supply control switch and the indoor unit control switch are switched on; and the number of the first and second groups,
and controlling the outdoor unit energy storage control switch and the indoor unit energy storage control switch to be switched off so as to control the energy storage unit to store electricity under the condition that the outdoor unit energy storage control switch and the indoor unit energy storage control switch are switched off.
12. The method according to claim 10 or 11, wherein controlling the power supply of the air conditioner to be disconnected and controlling the energy storage unit to supply power to the air conditioner by the control unit comprises:
controlling an energy storage control switch of the indoor unit to be switched on and then controlling a power supply control switch of the indoor unit to be switched off under the condition that an operation signal of a user to the air conditioner is not received for more than a first set time and the recovered electric energy in the energy storage unit is greater than or equal to a preset electric energy threshold value; and the number of the first and second groups,
and after the energy storage control switch of the outdoor unit is controlled to be switched on, the power supply control switch of the outdoor unit is controlled to be switched off.
13. The method of claim 12, wherein the controlling the power supply of the air conditioner to be disconnected and the controlling the energy storage unit to supply power to the air conditioner by the control unit, further comprises:
under the condition that a starting signal of the air conditioner is received and an operation signal of a user to the air conditioner is not received above a second set time period, or under the condition that the electric energy recovered in the energy storage unit is reduced to be less than a preset electric energy threshold value, controlling the power supply control switch of the indoor unit to be switched on, and then controlling the energy storage control switch of the indoor unit to be switched off; and the number of the first and second groups,
and after the power supply control switch of the outdoor unit is controlled to be switched on, the energy storage control switch of the outdoor unit is controlled to be switched off.
14. The method of claim 12, wherein the controlling the power supply of the air conditioner to be disconnected and the controlling the energy storage unit to supply power to the air conditioner by the control unit, further comprises:
and under the condition that the load of the outdoor unit of the air conditioner is received to work and the indoor unit is still in a standby state, controlling the outdoor unit to switch on and then controlling the outdoor unit energy storage switch to switch off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911214406.9A CN111102700A (en) | 2019-12-02 | 2019-12-02 | Energy-saving control device, air conditioner and energy-saving control method of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911214406.9A CN111102700A (en) | 2019-12-02 | 2019-12-02 | Energy-saving control device, air conditioner and energy-saving control method of air conditioner |
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Cited By (1)
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