CN112524685A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN112524685A CN112524685A CN202011375079.8A CN202011375079A CN112524685A CN 112524685 A CN112524685 A CN 112524685A CN 202011375079 A CN202011375079 A CN 202011375079A CN 112524685 A CN112524685 A CN 112524685A
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- air conditioner
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- 238000004891 communication Methods 0.000 claims abstract description 166
- 238000000034 method Methods 0.000 claims description 18
- 230000002618 waking effect Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 16
- 230000001276 controlling effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 9
- 238000009499 grossing Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000003750 conditioning effect Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 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
- 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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides an air conditioner, comprising: the power line is used for accessing an external power supply; indoor set, be provided with in it: an indoor unit control circuit having an indoor unit communication interface; the off-premises station, be provided with in it: an outdoor unit control circuit having an outdoor unit communication interface; the outdoor unit switching power supply is used for supplying power to the outdoor unit control circuit; and the on-line assembly is used for connecting the indoor unit and the outdoor unit and is configured to controllably connect a power line to an outdoor unit switching power supply or connect an indoor unit communication interface to an outdoor unit communication interface according to the working state of the air conditioner. The invention simplifies the circuit by utilizing the on-line assembly, and is suitable for an intelligent air conditioner. The air conditioner can utilize the power line to supply power to the outdoor unit switching power supply when the air conditioner exits from standby, so that the outdoor unit control circuit is powered on to play a role of waking up the outdoor unit immediately, the outdoor unit is not required to be powered on in a standby state, and communication between the indoor unit and the outdoor unit can be realized after the outdoor unit control circuit is powered on.
Description
Technical Field
The invention relates to an electric appliance, in particular to an air conditioner.
Background
The air conditioner uses electric energy as power to adjust parameters such as the temperature and the humidity of indoor air.
In the prior art, a part of air conditioners need to supply power to an outdoor unit switching power supply by using a power line, and need to connect an indoor unit communication interface and an outdoor unit communication interface to realize communication between the indoor unit and the outdoor unit, and often need to arrange a plurality of cables, and the circuit is complex. And when the air conditioner is in a standby state, if the outdoor unit is completely powered off, the air conditioner cannot wake up the outdoor unit immediately to switch to an operating state, and a switching power supply and a control circuit of the outdoor unit are always in a charged state when the air conditioner is in a standby state, so that the air conditioner consumes extra electric energy, and the energy consumption is high.
Therefore, how to improve the circuit structure of the air conditioner becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
It is an object of the present invention to provide an air conditioner that at least partially solves the above problems.
A further object of the present invention is to improve the circuit structure of the air conditioner to simplify the circuit.
It is yet a further object of the present invention to enable multiplexing of connection lines.
Still another object of the present invention is to reduce standby power consumption of an air conditioner and achieve energy saving.
Another further object of the present invention is to simplify the control process of the air conditioner.
The present invention provides an air conditioner, comprising: the power line is used for accessing an external power supply; indoor set, be provided with in it: an indoor unit control circuit having an indoor unit communication interface; the off-premises station, be provided with in it: an outdoor unit control circuit having an outdoor unit communication interface; the outdoor unit switching power supply is used for supplying power to the outdoor unit control circuit; and the on-line assembly is used for connecting the indoor unit and the outdoor unit and is configured to controllably connect a power line to an outdoor unit switching power supply or connect an indoor unit communication interface to an outdoor unit communication interface according to the working state of the air conditioner.
Optionally, the online component comprises: a connection line having a first end for connecting to the indoor unit and a second end for connecting to the outdoor unit; and the circuit switching assembly is configured to controllably connect the first end of the connecting wire to the power wire and connect the second end of the connecting wire to the outdoor unit switching power supply or connect the first end of the connecting wire to the indoor unit communication interface and connect the second end of the connecting wire to the outdoor unit communication interface according to the working state of the air conditioner.
Optionally, the circuit switching assembly comprises: the indoor unit switching assembly is arranged on the indoor unit and used for controllably connecting the first end of the connecting line to the power line or the indoor unit communication interface according to the working state of the air conditioner; and the outdoor unit switching assembly is arranged on the outdoor unit and used for controllably connecting the second end of the connecting wire to the outdoor unit switching power supply or the outdoor unit communication interface according to the working state of the air conditioner.
Optionally, the indoor unit switching assembly includes: the indoor unit power supply line is used for connecting the power supply line; and the indoor unit switching element is connected between the indoor unit power supply line and the first end of the connecting line and is used for controllably controlling the on-off of the indoor unit power supply line according to the working state of the air conditioner.
Optionally, the outdoor unit switching assembly includes: the outdoor unit power supply line is used for connecting an outdoor unit switching power supply; the outdoor unit communication line is used for connecting an outdoor unit communication interface; the outdoor unit first switching element is used for controllably controlling the opening and closing of the first fixed contact and the second fixed contact according to the working state of the air conditioner.
Optionally, the outdoor unit switching assembly further includes: the outdoor unit power line is used for connecting the power line to the outdoor unit switching power supply; and the second switching element of the outdoor unit is connected between the power line of the outdoor unit and the switching power supply of the outdoor unit and is used for controlling the on-off of the power line of the outdoor unit in a controlled manner according to the working state of the air conditioner.
Optionally, the outdoor unit second switching element is configured to controllably turn off the outdoor unit power line in case the air conditioner is switched to the standby state, and is further configured to controllably turn on the outdoor unit power line in a process of switching the air conditioner from the standby state to the operation state.
Optionally, during the process of switching the air conditioner from the standby state to the operating state, the indoor unit switching component connects the first end of the connecting line to the power line, the outdoor unit switching component connects the second end of the connecting line to the outdoor unit switching power supply, so as to power on the outdoor unit switching power supply, so that the outdoor unit switching power supply supplies power to the outdoor unit control circuit, and after the outdoor unit switching power supply supplies power to the outdoor unit control circuit, the indoor unit switching component connects the first end of the connecting line to the indoor unit communication interface, and the outdoor unit switching component connects the second end of the connecting line to the outdoor unit communication interface.
Optionally, the indoor unit control circuit includes: a main controller of the indoor unit; the indoor unit transmitting optocoupler is used for connecting a communication transmitting end of the indoor unit main controller; the indoor unit receiving optocoupler is used for connecting a communication receiving end of the indoor unit main controller; and the transmitting side of the indoor unit transmitting optocoupler is connected with the receiving side of the indoor unit receiving optocoupler and serves as an indoor unit communication interface.
Optionally, the outdoor unit control circuit includes: an outdoor unit main controller; the outdoor unit transmitting optocoupler is used for connecting a communication transmitting end of an outdoor unit main controller; the outdoor unit receiving optocoupler is used for connecting a communication receiving end of the outdoor unit main controller; and the transmitting side of the outdoor unit transmitting optocoupler is connected with the receiving side of the outdoor unit receiving optocoupler and is used as an outdoor unit communication interface.
The air conditioner comprises a power line, an indoor unit, an outdoor unit and an on-line assembly, wherein the on-line assembly is used for connecting the indoor unit and the outdoor unit and is configured to controllably connect the power line to an outdoor unit switching power supply or connect an indoor unit communication interface to an outdoor unit communication interface according to the working state of the air conditioner, so that the air conditioner can automatically adjust the connection mode between the indoor unit and the outdoor unit according to the working state. The circuit structure of the air conditioner is improved by utilizing the on-line component, so that the connection mode between the indoor unit and the outdoor unit is automatically switched, and the circuit is simplified. The air conditioner can utilize the power line to supply power to the outdoor unit switching power supply when exiting the standby state, so that the outdoor unit control circuit is powered on to play a role of waking up the outdoor unit immediately, the outdoor unit is not required to be powered on in the standby state, and the communication between the indoor unit and the outdoor unit can be realized after the outdoor unit control circuit is powered on.
Furthermore, the on-line assembly of the air conditioner of the invention comprises a connecting line and a circuit switching assembly. The circuit switching assembly is configured to controllably connect the first end of the connecting line to a power line and connect the second end of the connecting line to an outdoor unit switching power supply or connect the first end of the connecting line to an indoor unit communication interface and connect the second end of the connecting line to an outdoor unit communication interface according to the working state of the air conditioner. The invention can not only utilize the connecting wire to provide power for the outdoor unit switching power supply, but also utilize the connecting wire to realize the communication between the indoor unit and the outdoor unit, thereby realizing the multiplexing of the connecting wire, and being beneficial to further simplifying the circuit structure.
Furthermore, the circuit switching assembly of the on-line assembly of the air conditioner of the present invention comprises an indoor unit switching assembly and an outdoor unit switching assembly. The outdoor unit switching assembly comprises an outdoor unit power line for connecting the power line to an outdoor unit switching power supply and an outdoor unit second switching element connected between the outdoor unit power line and the outdoor unit switching power supply. The second switching element of the outdoor unit is configured to controllably turn off the power line of the outdoor unit when the air conditioner is switched to the standby state, which is beneficial to reducing the standby power consumption of the air conditioner and realizing energy saving.
Furthermore, the air conditioner of the invention utilizes the mutual cooperation of the indoor unit switching component and the outdoor unit switching component, and only needs to control the indoor unit switching element, the outdoor unit first switching element and the outdoor unit second switching element, so that the air conditioner can be switched from the standby state to the running state, and also can be switched from the running state to the standby state which is favorable for low power consumption, thereby not only simplifying the circuit structure, but also simplifying the control process, and being favorable for improving the automation degree.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of an air conditioner according to one embodiment of the present invention;
fig. 2 is a schematic circuit configuration diagram of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic diagram of communication signals of the respective optocouplers when performing communication between the indoor unit and the outdoor unit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a circuit configuration of an air conditioner according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a circuit configuration of an air conditioner according to still another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of an air conditioner 10 according to one embodiment of the present invention. The air conditioner 10 of the present embodiment may be of a split type.
The air conditioner 10 may generally include a power cord 110, an indoor unit 120, an outdoor unit 130, and an inline assembly 140.
The power cord 110 is used to receive an external power source, that is, the external power source supplies power to the indoor unit 120 and/or the outdoor unit 130 of the air conditioner 10 through the power cord 110.
An indoor unit control circuit 121 is provided inside the indoor unit 120. The indoor unit control circuit 121 has an indoor unit communication interface. An outdoor unit control circuit 131 and an outdoor unit switching power supply 132 are provided in the outdoor unit 130. The outdoor unit control circuit 131 has an outdoor unit communication interface. The outdoor unit switching power supply 132 is used to supply power to the outdoor unit control circuit 131. The indoor unit communication interface is used for being connected with an outdoor unit communication interface of the outdoor unit control circuit 131, so as to realize communication between the indoor unit 120 and the outdoor unit 130.
The inline module 140 is used to connect the indoor unit 120 and the outdoor unit 130, and is configured to controllably connect the power line 110 to the outdoor unit switching power supply 132 or connect the indoor unit communication interface to the outdoor unit communication interface according to the operation state of the air conditioner 10.
That is, the on-line module 140 is used to switch the connection between the indoor unit 120 and the outdoor unit 130. The connection mode of the on-line assembly 140 connecting the indoor unit 120 and the outdoor unit 130 may be any one of the following connection modes: the power line 110 is connected to the outdoor switch power supply 132, and the indoor unit communication interface is connected to the outdoor unit communication interface.
When the air conditioner 10 of the present embodiment is in the standby state, the outdoor unit switching power supply 132 is turned off, and the outdoor unit control circuit 131 is turned off. Since the power line 110 is used for accessing an external power source, the on-line component 140 connects the power line 110 to the outdoor unit switching power source 132 when the air conditioner 10 is switched from the standby state to the operating state, and at this time, the air conditioner 10 can use the power line 110 to supply power to the outdoor unit switching power source 132, so that the outdoor unit switching power source 132 is powered on. The outdoor unit switching power supply 132 may supply power to the outdoor unit control circuit 131 after being powered on, so that the outdoor unit control circuit 131 is powered on. When the on-line component 140 connects the power line 110 to the outdoor switch power supply 132, the on-line component 140 disconnects the indoor communication interface and the outdoor communication interface.
After the outdoor unit control circuit 131 is powered on, the on-line component 140 connects the indoor unit communication interface to the outdoor unit communication interface, so that the indoor unit 120 and the outdoor unit 130 realize communication, and the air conditioner 10 can be switched to a normal operation state. When the on-line component 140 connects the indoor unit communication interface to the outdoor unit communication interface, the on-line component 140 disconnects the power line 110 from the outdoor unit switching power supply 132.
By using the connecting component 140 to switch the connection between the indoor unit 120 and the outdoor unit 130, the air conditioner 10 of this embodiment can not only use the power line 110 to supply power to the outdoor unit switching power supply 132 when exiting the standby state, so as to power on the outdoor unit control circuit 131, and thus play a role of "waking up the outdoor unit immediately", so as to not need to keep the outdoor unit 130 powered on in the standby state, but also can implement communication between the indoor unit 120 and the outdoor unit 130 after the outdoor unit control circuit 131 is powered on, so that the air conditioner 10 of this embodiment can automatically switch the connection between the indoor unit 120 and the outdoor unit 130 according to the working state. By improving the circuit structure of the air conditioner 10 by using the on-line component 140, the connection mode between the indoor unit 120 and the outdoor unit 130 is automatically switched, which is beneficial to simplifying the circuit.
By improving the circuit structure, the outdoor unit is "wakened up immediately" by switching the connection between the indoor unit 120 and the outdoor unit 130 by the on-line component 140, when the air conditioner 10 is in the standby state, the outdoor unit 130 can be completely powered off, and only the indoor unit 120 is in standby, which can save the standby power consumption.
Fig. 2 is a schematic circuit diagram of the air conditioner 10 according to an embodiment of the present invention. In the figure, a dotted line frame 121 shows an indoor unit control circuit 121, a point P1 shows an indoor unit communication interface P1, a dotted line frame 131 shows an outdoor unit control circuit 131, a point P3 shows an outdoor unit communication interface P3, and a point U0 shows an outdoor unit switching power supply 132.
The external power supply can provide power frequency voltage for the air conditioner 10, for example, the power frequency voltage of the single-phase power supply in China is 220V at 50 Hz, and the power frequency voltage of the three-phase power supply is 380V at 50 Hz. The power cord 110 may include a hot wire L and a neutral wire N.
The inline component 140 may include a connection line and a circuit switching component.
The connection line has a first end for connecting to the indoor unit 120 and a second end for connecting to the outdoor unit 130. For example, the connecting wire may be a wire between the point P1 and the contact 1 of the third relay K3 in fig. 2. The circuit switching assembly is configured to controllably connect the first end of the connection line to the power line 110 and the second end of the connection line to the outdoor switch power supply 132, or connect the first end of the connection line to the indoor unit communication interface and the second end of the connection line to the outdoor unit communication interface, according to the operating state of the air conditioner 10.
That is, the air conditioner 10 of the present embodiment uses the connection lines and the circuit switching components to switch the connection mode between the indoor unit 120 and the outdoor unit 130. The connection line is used for connecting the indoor unit 120 and the outdoor unit 130, and the circuit switching assembly is used for switching the connection mode of the first end and the second end of the connection line according to the working state of the air conditioner 10, and switching the connection mode between the indoor unit 120 and the outdoor unit 130 by switching the connection mode of the first end and the second end of the connection line.
The circuit switching assembly can comprise an indoor unit switching assembly and an outdoor unit switching assembly. The indoor unit switching component is disposed in the indoor unit 120, and is configured to controllably connect the first end of the connection line to the power line 110 or the indoor unit communication interface according to the operating state of the air conditioner 10. The outdoor unit switching assembly is disposed in the outdoor unit 130, and is configured to controllably connect the second end of the connecting line to the outdoor unit switching power supply 132 or the outdoor unit communication interface according to the working state of the air conditioner 10. That is, the circuit switching unit includes a plurality of components respectively provided to the indoor unit 120 and the outdoor unit 130.
The air conditioner 10 of this embodiment, through utilizing the connecting wire, the organic cooperation of a plurality of parts such as indoor set switch module and outdoor set switch module, switch the wiring mode of the first end and the second end of connecting wire, thereby adjust the connected mode between indoor set 120 and the outdoor set 130, make the air conditioner 10 pass through the automatic adjustment circuit, with the switching of adaptation operating condition, this mobility, flexibility and the variety that have improved the circuit structure of air conditioner 10, can satisfy normal user demand, can realize energy-conservation again, hold many birds with one stone.
The air conditioner 10 may have a plurality of operating states such as a standby state, an operating state, and the like. In the standby state, the air conditioner 10 is connected to the external power supply, but does not perform any substantial operation, and the outdoor unit switching power supply 132 is turned off and the outdoor unit control circuit 131 is turned off. In the process of switching from the standby state to the operating state, the air conditioner 10 first connects the power line 110 to the outdoor unit switching power supply 132 by using a connection line to control the outdoor unit switching power supply 132 to be powered on, so that the outdoor unit control circuit 131 is powered on, and then controls the indoor unit communication interface and the outdoor unit communication interface to be connected by using a connection line to form a communication circuit, so that the indoor unit 120 and the outdoor unit 130 of the air conditioner 10 can operate according to the instruction of a user, and thus, the adjustment of various parameters such as the indoor air temperature and the humidity can be realized.
In the process of switching the air conditioner 10 from the standby state to the operating state, the indoor unit switching component connects the first end of the connection line to the power line 110, the outdoor unit switching component connects the second end of the connection line to the outdoor unit switching power supply 132, so that the outdoor unit switching power supply 132 supplies power to the outdoor unit control circuit 131, and after the outdoor unit switching power supply 132 supplies power to the outdoor unit control circuit 131 and powers on the outdoor unit control circuit 131, the indoor unit switching component connects the first end of the connection line to the indoor unit communication interface, and the outdoor unit switching component connects the second end of the connection line to the outdoor unit communication interface, so that the indoor unit communication interface and the outdoor unit communication interface are connected through the connection line to form a communication circuit.
The air conditioner 10 of the present embodiment can not only use the connection line to provide power to the outdoor unit switching power supply 132, but also use the connection line to realize communication between the indoor unit 120 and the outdoor unit 130, which realizes multiplexing of the connection line and is beneficial to further simplifying the circuit of the air conditioner 10. The connection line may be an electric wire.
The indoor unit switching assembly may include an indoor unit power supply line and an indoor unit switching element K1. The indoor unit power supply line is used for connecting the power supply line 110. That is, the indoor unit power supply line is used to connect the power supply line 110 and the first end of the connection line. For example, the indoor unit power supply line may be a line between G1 point and the contact 1 of the first relay K1 in fig. 2. The indoor unit switching element K1 is connected between the indoor unit power supply line and the first end of the connection line, and is used for controllably controlling the on/off of the indoor unit power supply line according to the operating state of the air conditioner 10. The indoor unit switching element K1 may be the first relay K1 in fig. 2. The indoor unit switching element K1 can be controlled by an indoor unit master M1 of the indoor unit control circuit 121. Namely, the coil of the first relay K1 is connected to the indoor unit master M1. The contact 2 of the first relay K1 is connected to a first end of the connecting line.
That is, the air conditioner 10 switches the connection method of the first end of the connection line by the indoor unit switching element K1. The connection mode of the first end of the connection line may be any one of the following connection modes: the first end of the connecting line is connected to the power line 110, and the second end of the connecting line is connected to the communication interface of the indoor unit. When the indoor unit switching element K1 is closed, the indoor unit power supply line is in an on state, at which the first end of the connection line is connected to the power supply line 110. When the indoor unit switching element K1 is turned on, the indoor unit power supply line is in an off state, and the first end of the connection line is connected to the indoor unit communication interface. In this embodiment, the indoor unit power supply line may be connected to the live line L of the power supply line 110.
The outdoor unit switching assembly may include an outdoor unit power supply line, an outdoor unit communication line, and an outdoor unit first switching element K3, and may further include an outdoor unit power supply line and an outdoor unit second switching element K4.
The outdoor unit power supply line is used to connect the outdoor unit switching power supply 132. That is, the outdoor unit power supply line is used to connect the outdoor unit switching power supply 132 and the second end of the connection line. For example, the outdoor power supply line may be a line between contact 2 and G2 of the third relay K3 in fig. 2. The outdoor unit communication line is used for connecting the outdoor unit communication interface. That is, the outdoor unit communication line is used for connecting the outdoor unit communication interface with the second end of the connection line. For example, the outdoor unit communication line may be a connection line between the contact 3 of the third relay K3 and the P3 in fig. 2.
The outdoor unit first switching element K3 may be the third relay K3 in fig. 2, and the third relay K3 is a single-pole double-throw relay. The outdoor unit first switching element K3 has a moving contact (contact 1 of the K3 relay in fig. 2), a first fixed contact (contact 2 of the K3 relay in fig. 2) and a second fixed contact (contact 3 of the K3 relay in fig. 2), the moving contact thereof is connected to the second end of the connection line, the first fixed contact thereof is connected to the outdoor unit power supply line, the second fixed contact thereof is connected to the outdoor unit communication line, and the outdoor unit first switching element K3 is used for controllably controlling the opening and closing of the first fixed contact and the second fixed contact according to the operation state of the air conditioner 10. The on-off of the power supply line of the outdoor unit can be controlled by controlling the on-off of the first static contact, and the on-off of the communication line of the outdoor unit can be controlled by controlling the on-off of the second static contact. The outdoor unit first switching element K3 can be controlled by an outdoor unit master M3 of the outdoor unit control circuit 131. That is, the coil of the third relay K3 is connected to the outdoor unit master M3. When the outdoor unit control circuit 131 is powered on, the outdoor unit master controller M3 can control the opening and closing of the first stationary contact and the second stationary contact of the outdoor unit first switching element K3.
That is, the air conditioner 10 uses the outdoor unit first switching element K3 to switch the connection mode of the second end of the connection line. The connection mode of the second end of the connection line may be any one of the following connection modes: the second end of the connecting line is connected to the outdoor unit switching power supply 132, and the second end of the connecting line is connected to the outdoor unit communication interface. When the first stationary contact of the outdoor unit first switching element K3 is closed, the second stationary contact is opened, the outdoor unit power supply line is in an on state, and the outdoor unit communication line is in an off state, and the second end of the connection line is connected to the outdoor unit switching power supply 132. When the second stationary contact of the outdoor unit first switching element K3 is closed, the first stationary contact is opened, the outdoor unit communication line is in an on state, the outdoor unit power supply line is in an off state, and the second end of the connection line is connected to the outdoor unit communication interface.
The outdoor unit power line is used to connect the power line 110 to the outdoor unit switching power supply 132, that is, the power line 110 may be directly connected to the outdoor unit switching power supply 132 through the outdoor unit power line without a connecting line. For example, the outdoor unit power line may be a power line between the outdoor unit switching power supply 132 and a point G3 or a point G4 in fig. 2.
The outdoor unit second switching element K4 is connected between the outdoor unit power line and the outdoor unit switching power supply 132, and is used for controllably controlling the on/off of the outdoor unit power line according to the operating state of the air conditioner 10. For example, the outdoor unit second switching element K4 may be a fourth relay K4 of fig. 2, which has a contact 1 and a contact 2. And the outdoor unit second switching element K4 can be controlled by the outdoor unit master M3 of the outdoor unit control circuit 131, that is, the coil of the fourth relay K4 is connected to the outdoor unit master M3. When the outdoor unit second switching element K4 is closed, the outdoor unit power line is in an on state, and the power line 110 is directly connected to the outdoor unit switching power supply 132 through the outdoor unit power line. When the outdoor unit second switching element K4 is turned on, the outdoor unit power line is in an off state, and the power line 110 cannot be connected to the outdoor unit switching power supply 132 through the outdoor unit power line.
That is, in the present embodiment, any one of the following connection methods may be selected to connect the power line 110 to the outdoor unit switching power supply 132: firstly, the power line 110 can be connected to the outdoor switch power supply 132 through the indoor unit power supply line, the connecting line and the outdoor unit power supply line in sequence; second, the outdoor unit switch power supply 132 may be directly connected only through the outdoor unit power line. The on-off of the indoor machine power supply line is controlled by an indoor machine switching element K1, the on-off of the outdoor machine power supply line is controlled by an outdoor machine first switching element K3, and the on-off of the outdoor machine power supply line is controlled by an outdoor machine second switching element K4. That is, the air conditioner 10 can switch the connection between the power line 110 and the outdoor unit switching power supply 132 by controlling the open and closed states of the indoor unit switching element K1, the outdoor unit first switching element K3, and the outdoor unit second switching element K4.
In the process of switching the air conditioner 10 from the standby state to the operating state, the first connection mode may be first adopted to connect the power line 110 to the outdoor unit switching power supply 132, so as to power the outdoor unit switching power supply 132, thereby providing power for the outdoor unit control circuit 131, and after the outdoor unit control circuit 131 is powered on, the second connection mode may be adopted to connect the power line 110 to the outdoor unit switching power supply 132, and the first connection mode is disconnected, so as to enable the indoor unit 120 and the outdoor unit 130 to communicate by using the connection line, and the power line 110 is used to directly supply power to the outdoor unit switching power supply 132 through the outdoor unit power line.
During the process of switching the air conditioner 10 from the operation state to the standby state, the communication circuit between the indoor unit 120 and the outdoor unit 130 is turned off, and the power supply circuit between the power line 110 and the outdoor unit switching power supply 132 is turned off, so that the outdoor unit switching power supply 132 and the outdoor unit control circuit 131 are powered off.
In this embodiment, the outdoor unit first switching element K3 may be controlled to turn off the communication circuit between the indoor unit 120 and the outdoor unit 130. For example, the first stationary contact of the outdoor unit first switching element K3 may be controlled to be closed and the second stationary contact to be opened, thereby turning off the outdoor unit communication line to turn off the communication circuit between the indoor unit 120 and the outdoor unit 130. The air conditioner 10 may control the outdoor unit power line to be turned off by controlling the outdoor unit second switching element K4, thereby turning off the power supply circuit between the power line 110 and the outdoor unit switching power supply 132. The outdoor unit second switching element K4 is configured to controllably turn off the outdoor unit power supply line in case the air conditioner 10 is switched to the standby state. By controlling the outdoor unit second switching element K4, the air conditioner 10 of the present embodiment can cut off the outdoor unit switching power supply 132 and the outdoor unit control circuit 131 in the standby state, thereby reducing the standby power consumption of the air conditioner 10 and saving energy.
During the switching of the air conditioner 10 from the standby state to the operating state, and after the outdoor unit control circuit 131 is powered on, the outdoor unit second switching element K4 is configured to controllably switch on the outdoor unit power line to directly supply power to the outdoor unit switching power supply 132 by using the power line 110.
In the air conditioner 10 of the present embodiment, the indoor unit switching component and the outdoor unit switching component are mutually matched, and only by controlling the indoor unit switching element K1, the outdoor unit first switching element K3 and the outdoor unit second switching element K4, the air conditioner 10 can be smoothly switched from the standby state to the operating state, and the air conditioner 10 can be switched from the operating state to the standby state with low power consumption.
The circuit configuration of the air conditioner 10 and the circuit switching process are further described below in connection with the operation state switching process of the air conditioner 10.
During the switching of the air conditioner 10 from the standby state to the operating state: controlling the indoor unit switching element K1 to be closed to connect the indoor unit power supply line, wherein the first end of the connecting line is connected to the power supply line 110; at this time, the first stationary contact of the outdoor unit first switching element K3 is closed, the second stationary contact is opened, that is, the outdoor unit power supply line is in an on state, the outdoor unit communication line is in an off state, and the second end of the connection line is connected to the outdoor unit switching power supply 132, so that the power supply line 110 supplies power to the outdoor unit switching power supply 132 through the indoor unit power supply line, the connection line, and the outdoor unit power supply line, so as to power on the outdoor unit switching power supply 132; after the outdoor unit switching power supply 132 is powered on, power can be supplied to the outdoor unit control circuit 131, so that the outdoor unit control circuit 131 is powered on; after the outdoor unit control circuit 131 is powered on, the outdoor unit second switching element K4 is controlled to be closed, the outdoor unit power line is connected, the second stationary contact of the outdoor unit first switching element K3 is controlled to be closed, the first stationary contact is controlled to be opened, the outdoor unit communication line is connected, the outdoor unit power supply line is disconnected, the indoor unit switching element K1 is controlled to be opened, the indoor unit power supply line is disconnected, the first end of the connecting line is connected to the indoor unit communication interface, the second end of the connecting line is connected to the outdoor unit communication interface, and therefore the indoor unit 120 and the outdoor unit 130 are enabled to.
During the switching of the air conditioner 10 from the operating state to the standby state: the first stationary contact of the outdoor unit first switching element K3 is controlled to be closed, the second stationary contact is controlled to be opened, the second end of the connecting line is connected to the outdoor unit switching power supply 132, and the outdoor unit second switching element K4 is controlled to be opened, so that the outdoor unit power supply line is turned off, and the outdoor unit switching power supply 132 and the outdoor unit control circuit 131 are powered off, thereby realizing low power consumption standby. At this time, since the indoor unit switching element K1 remains open, the power supply line 110 cannot supply power to the outdoor unit switching power supply 132 through the indoor unit power supply line, the connection line, and the outdoor unit power supply line.
The indoor unit control circuit 121 can be used to control operations of various devices (e.g., an indoor unit fan, a wind deflector, etc.) in the indoor unit 120, and also to control communication between the indoor unit 120 and the outdoor unit 130. The indoor unit control circuit 121 may include an indoor unit main controller M1, an indoor unit transmitting optocoupler U1, and an indoor unit receiving optocoupler U2.
The outdoor unit control circuit 131 may be used to control operations of various devices (e.g., an outdoor unit fan, a compressor, etc.) in the outdoor unit 130, and also to control communication between the indoor unit 120 and the outdoor unit 130. The outdoor unit control circuit 131 may include an outdoor unit master controller M3, an outdoor unit transmitting optocoupler U3, and an outdoor unit receiving optocoupler U4.
The indoor unit master controller M1 and the outdoor unit master controller M3 may both be master control chips, and the master control chips may include a memory and a processor. The processor may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory is used for storing programs executed by the processor. The memory can be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.
The indoor unit emitting optical coupler U1, the indoor unit receiving optical coupler U2, the outdoor unit emitting optical coupler U3, the outdoor unit receiving optical coupler U4 and the like form a communication circuit between the indoor unit 120 and the outdoor unit 130. Compared with the conventional bus communication circuit, the communication circuit of the embodiment does not need to be provided with a bus controller, and has the advantages of lower cost, larger level range, higher anti-interference performance and simple wiring.
And the indoor unit emission optocoupler U1 is used for connecting a communication transmitting end of an indoor unit main controller M1. And the indoor unit receiving optocoupler U2 is used for connecting a communication receiving end of the indoor unit main controller M1. And the transmitting side of the indoor unit transmitting optocoupler U1 is connected with the receiving side of the indoor unit receiving optocoupler U2 and is used as an indoor unit communication interface. The first side of the indoor unit emission optocoupler U1 is connected with the communication transmitting end of the indoor unit main controller M1, and the emission side of the indoor unit emission optocoupler U1 is the other side opposite to the first side of the indoor unit emission optocoupler U1. The first side of the indoor unit receiving optocoupler U2 is used for being connected with a communication receiving end of the indoor unit main controller M1, and the receiving side of the indoor unit receiving optocoupler U2 is the other side opposite to the first side of the indoor unit receiving optocoupler U2.
And the outdoor unit emission optocoupler U3 is used for connecting a communication transmitting end of an outdoor unit main controller M3. And the outdoor unit receiving optocoupler U4 is used for connecting a communication receiving end of an outdoor unit main controller M3. And the transmitting side of the outdoor unit transmitting optocoupler U3 is connected with the receiving side of the outdoor unit receiving optocoupler U4 and is used as an outdoor unit communication interface. The first side of the outdoor unit transmitting optocoupler U3 is connected with the communication transmitting end of the outdoor unit main controller M3, and the transmitting side of the outdoor unit transmitting optocoupler U3 is the other side opposite to the first side of the outdoor unit transmitting optocoupler U3. The first side of the outdoor unit receiving optocoupler U4 is used for being connected with a communication receiving end of an outdoor unit main controller M3, and the receiving side of the outdoor unit receiving optocoupler U4 is the other side opposite to the first side of the outdoor unit receiving optocoupler U4.
In fig. 2, a shows an anode of the diode, K shows a cathode of the diode, C shows a collector of the transistor, and E shows an emitter of the transistor.
Fig. 3 is a schematic diagram of communication signals of the optical couplers when the indoor unit 120 communicates with the outdoor unit 130 according to an embodiment of the present invention, and fig. 3(a) shows the communication signals of the optical couplers when the indoor unit 120 transmits the communication signals to the outdoor unit 130. When the indoor unit 120 sends a communication signal to the outdoor unit 130, the outdoor unit transmitting optical coupler U3 is firstly connected, the indoor unit 120 sends a communication signal through the indoor unit transmitting optical coupler U1, the outdoor unit 130 receives the communication signal sent by the indoor unit 120 through the outdoor unit receiving optical coupler U4, meanwhile, the indoor unit 120 can receive the communication signal sent by the indoor unit 120 through the indoor unit receiving optical coupler U2, and if the communication signal is wrong, the communication signal can be sent again.
Fig. 3(b) shows communication signals of the respective photo-couplers when the outdoor unit 130 transmits a communication signal to the indoor unit 120. When the outdoor unit 130 sends a communication signal to the indoor unit 120, the indoor unit transmitting optical coupler U1 is firstly connected, the outdoor unit 130 sends a communication signal through the outdoor unit transmitting optical coupler U3, the indoor unit receives the communication signal sent by the outdoor unit 130 through the indoor unit receiving optical coupler U2, meanwhile, the outdoor unit 130 can receive the communication signal sent by the outdoor unit 130 through the outdoor unit receiving optical coupler U4, and if the communication signal is wrong, the communication signal can be sent again.
The dashed box 122 in fig. 2 shows the power signal conditioning module of the air conditioner 10. The air conditioner 10 of this embodiment may further include a power signal sorting module, which is connected to a transmitting side of the power line and indoor unit transmitting optocoupler U1, a receiving side of the indoor unit receiving optocoupler U2, a transmitting side of the outdoor unit transmitting optocoupler U3, and a receiving side of the outdoor unit receiving optocoupler U4.
The power signal management module can be selectively installed in any one of the indoor unit 120 or the outdoor unit 130 according to actual needs. The present embodiment is only illustrated in a case where the power signal management module is disposed in the indoor unit 120, and those skilled in the art should have full capability of expanding the present embodiment, and the present embodiment is not shown one by one.
The power signal sorting module is used for converting a power signal transmitted by a power line 110 and coming from an external power supply into a communication power signal required by a transmitting side of an indoor unit transmitting optocoupler U1, a receiving side of an indoor unit receiving optocoupler U2, a transmitting side of an outdoor unit transmitting optocoupler U3 and a receiving side of an outdoor unit receiving optocoupler U4 so as to provide a working power supply for the transmitting side of the indoor unit transmitting optocoupler U1, the receiving side of the indoor unit receiving optocoupler U2, the transmitting side of the outdoor unit transmitting optocoupler U3 and the receiving side of the outdoor unit receiving optocoupler U4. In this embodiment, the external power supply may provide power frequency voltage for the air conditioner 10, for example, the power frequency voltage of the single-phase power supply in China is 220V at 50 hz, and the power frequency voltage of the three-phase power supply is 380V at 50 hz. The power signal conditioning module can adjust alternating current provided by an external power supply into direct current with a set voltage range.
The power signal conditioning module may include a rectifier D1 and a voltage regulation component.
The rectifier D1 is configured to convert a power signal of an external power source into a dc voltage signal required by a transmitting side of the indoor unit transmitting optocoupler U1, a receiving side of the indoor unit receiving optocoupler U2, a transmitting side of the outdoor unit transmitting optocoupler U3, and a receiving side of the outdoor unit receiving optocoupler U4. For example, the external power source may provide an ac voltage to the air conditioner 10, and the rectifier D1 may be a rectifying diode for converting an ac voltage signal from the external power source into a dc voltage signal. Rectifier D1 has an input terminal, which is the anode of the rectifier diode, and an output terminal, which is the cathode of the rectifier diode.
And the voltage regulating component is connected to the rectifier D1 and is used for regulating the voltage value of the direct current voltage signal. The voltage regulation components may include a smoothing capacitor C1 and a voltage regulation component. A smoothing capacitor C1 may be connected to the output of the rectifier D1 for filtering the dc voltage signal. That is, the smoothing capacitor C1 can adjust the dc voltage signal to a smooth and reliable voltage signal. The voltage stabilizing component is used for adjusting the output voltage value of the smoothing capacitor C1 and is provided with a first resistor R1 connected with the input end of the rectifier D1, a Zener diode D2 and a second resistor R2 which are arranged in parallel with the smoothing capacitor C1, and a Zener diode D2 and a second resistor R2 are arranged in parallel with each other. The first resistor R1 and the second resistor R2 can be current-limiting resistors, which play a role in limiting current and dividing voltage, so as to prevent the smoothing capacitor C1 from being damaged due to overlarge charging current of the smoothing capacitor C1. The first resistor R1, the second resistor R2 and the zener diode D2 may form a voltage stabilizing circuit and may be used to adjust the output voltage value of the smoothing capacitor C1, for example, the output voltage value of the smoothing capacitor C1 may be adjusted to tens of volts.
The indoor unit control circuit 121 in this embodiment may further include an indoor unit current limiting resistor R3 and an indoor unit forward diode D3, which are sequentially disposed between the cathode of the indoor unit receiving optocoupler U2 and the indoor unit communication interface. An anode of the indoor unit forward diode D3 may be connected to a cathode of the indoor unit receiving optocoupler U2, and a cathode of the indoor unit forward diode D3 may be connected to the indoor unit current limiting resistor R3. The indoor unit current limiting resistor R3 is used for limiting current. The indoor unit forward diode D3 is used to prevent the reverse current flow.
The outdoor unit control circuit 131 may further include an outdoor unit current limiting resistor R4 and an outdoor unit forward diode D4, which are sequentially disposed between a collector of the outdoor unit transmitting optocoupler U3 and an outdoor unit communication interface. An anode of the outdoor unit forward diode D4 may be connected to the outdoor unit current limiting resistor R4, and a cathode of the outdoor unit forward diode D4 may be connected to a collector of the outdoor unit transmitting optocoupler U3. The outdoor unit current limiting resistor R4 is used for limiting current. The outdoor unit forward diode D4 is used to prevent a reverse current from flowing.
In some alternative embodiments, the air conditioner 10 may omit the power signal conditioning module. The triode internal pressure Vceo of the indoor unit transmitting optocoupler U1 and the outdoor unit transmitting optocoupler U3 can be 350V, and the triode internal pressure Vceo of the indoor unit receiving optocoupler U2 and the outdoor unit receiving optocoupler U4 can be 80V.
Fig. 4 is a schematic diagram of a circuit configuration of an air conditioner 10 according to still another embodiment of the present invention. In some further embodiments, the indoor unit of the air conditioner 10 may be plural. Fig. 4 only illustrates the case where there are two indoor units, and the circuit structure of the air conditioner 10 is illustrated, and those skilled in the art should be able to expand the case where there are more than two indoor units based on the understanding of the present embodiment. Compared with fig. 2, the circuit configuration shown by the broken line block 141 and the broken line block 132 is mainly added in fig. 4, and the third relay K3 is changed. The circuit configuration in the broken line frame 141 shows the circuit configuration of the inside of another indoor unit added, and correspondingly, the circuit configuration in the broken line frame 132 shows the circuit configuration of the inside of the outdoor unit added.
When there are two indoor units, the air conditioner 10 includes a power cord, a first indoor unit, a second indoor unit, an outdoor unit, and an on-line assembly. The power supply line may be a common one; or the power lines may include a first power line corresponding to the first indoor unit and a second power line corresponding to the second indoor unit. The first indoor unit is provided with a first indoor unit control circuit, and the first indoor unit control circuit is provided with a first indoor unit communication interface. The second indoor unit has a second indoor unit control circuit having a second indoor unit communication interface. The outdoor unit is provided with an outdoor unit control circuit and an outdoor unit switching power supply, wherein the outdoor unit control circuit is provided with an outdoor unit first communication interface used for being connected with a first indoor unit communication interface and an outdoor unit second communication interface used for being connected with a second indoor unit communication interface.
The indoor unit control circuit of each indoor unit comprises an indoor unit main controller, an indoor unit transmitting optocoupler and an indoor unit receiving optocoupler.
The connecting lines of the on-line assembly are two, and comprise a first connecting line for connecting the first indoor unit and the outdoor unit and a second connecting line for connecting the second indoor unit and the outdoor unit.
The indoor unit switching assemblies are two and comprise a first indoor unit switching assembly arranged on the first indoor unit and a second indoor unit switching assembly arranged on the second indoor unit. The first indoor unit switching assembly includes a first indoor unit power supply line and a first indoor unit switching element K1. The second indoor unit switching assembly includes a second indoor unit power supply line and a second indoor unit switching element K2.
The outdoor unit switching assembly comprises an outdoor unit first communication line arranged corresponding to the first indoor unit, an outdoor unit second communication line arranged corresponding to the second indoor unit, an outdoor unit power supply line used for connecting an outdoor unit switching power supply, an outdoor unit first switching element K3, an outdoor unit power supply line and an outdoor unit second switching element K4. Compared with the embodiment shown in fig. 2, the outdoor unit switching assembly of the present embodiment changes the outdoor unit first switching element K3, i.e., the third relay K3, and further adds an outdoor unit second communication line corresponding to the second indoor unit.
The circuit configuration of the first indoor unit in fig. 4 is the same as that of the indoor unit shown in fig. 2, and therefore, the circuit configuration of the second indoor unit, the second connection line, the circuit configuration added to the inside of the outdoor unit, and the third relay K3 will be described in detail below.
As shown in fig. 4, the indoor unit main controller of the second indoor unit control circuit is M2, the indoor unit transmitting optical coupler is U5, and the indoor unit receiving optical coupler is U6. The second indoor unit communication interface is P2. The second indoor unit switching element K2 can be a second relay K2 in fig. 4, which has a contact 1 and a contact 2. The second indoor unit switching element K2 is controlled by the indoor unit master M2 of the second indoor unit control circuit 121. The second indoor unit power supply line may be a line between point G1 and contact 1 of the second relay K2 in fig. 4.
The first connection line is an electric wire between P1 point and the contact 1 of the third relay K3 in fig. 4. The second connecting line is a wire between P2 point and the contact 4 of the third relay K3 in fig. 4.
Each indoor unit needs to communicate with the outdoor unit. The outdoor unit of this embodiment has been add and has been used for carrying out the outdoor unit transmission opto-coupler U7 and the outdoor unit receiving opto-coupler U8 that communication connection carries out with the second indoor unit specially. The first communication interface of the outdoor unit is P3, and the second communication interface of the outdoor unit is P4. The outdoor unit first communication line is a connection line between the contact 3 of the third relay K3 and the P3 in fig. 4. The second communication line of the outdoor unit is a connection line between the contact 6 of the third relay K3 and P4 in fig. 4. The outdoor power supply line is a line between contact 5 and point G2 of the third relay K3 in fig. 4.
The third relay K3 is a double-pole double-throw relay having a first movable contact (i.e., contact 1), a first stationary contact (i.e., contact 2), and a second stationary contact (i.e., contact 3) for arrangement corresponding to the first indoor unit, and also having a second movable contact (i.e., contact 4), a third stationary contact (i.e., contact 5), and a fourth stationary contact (i.e., contact 6) for arrangement corresponding to the second indoor unit. The first movable contact is connected with the second end of the first connecting line, and the second movable contact is connected with the second end of the second connecting line. The first static contact is connected with a power supply line of the outdoor unit, and the second static contact is connected with a first communication line of the outdoor unit. The third static contact is connected with a power supply line of the outdoor unit, and the fourth static contact is connected with a second communication line of the outdoor unit.
The circuit configuration and the circuit switching process of the air conditioner 10 in the present embodiment are further described below in conjunction with the operation state switching process of the air conditioner 10. It should be noted that the working states of the two indoor units do not affect each other in this embodiment. Any indoor unit can wake up the outdoor unit immediately.
Take the second indoor unit as an example. In the process of switching the second indoor unit of the air conditioner 10 from the standby state to the operating state: controlling the second indoor unit switching element K2 to be closed to enable a second indoor unit power supply line to be connected, wherein the first end of the second connecting line is connected to a second power supply line; at this time, the third stationary contact of the outdoor unit first switching element K3 is closed, the fourth stationary contact is opened, that is, the outdoor unit power supply line is in an on state, the outdoor unit second communication line is in an off state, and the second end of the second connection line is connected to the outdoor unit switching power supply 132, so that the second power line supplies power to the outdoor unit switching power supply 132 through the second indoor unit power supply line, the second connection line and the outdoor unit power supply line, so that the outdoor unit switching power supply 132 is powered on; after the outdoor unit switch power supply 132 is powered on, power can be supplied to the outdoor unit control circuit, so that the outdoor unit control circuit is powered on; after the outdoor unit control circuit is powered on, the outdoor unit second switching element K4 is controlled to be closed, the outdoor unit power line is connected, the fourth static contact of the outdoor unit first switching element K3 is controlled to be closed, the third static contact of the outdoor unit first switching element K3 is controlled to be opened, the outdoor unit second communication line is connected, the outdoor unit power supply line is disconnected, the second indoor unit switching element K2 is controlled to be opened, the second indoor unit power supply line is disconnected, at the moment, the first end of the second connecting line is connected to the second indoor unit communication interface, the second end of the second connecting line is connected to the outdoor unit second communication interface, and therefore the second indoor unit and the.
In the process of switching the second indoor unit of the air conditioner 10 from the operating state to the standby state: the third stationary contact of the outdoor unit first switching element K3 is controlled to be closed, the fourth stationary contact is controlled to be opened, at this time, the second end of the second connecting line is connected to the outdoor unit switching power supply 132, and the outdoor unit second switching element K4 is controlled to be opened, so that the outdoor unit power supply line is turned off, and thus the outdoor unit switching power supply 132 and the outdoor unit control circuit are powered off, and low power consumption standby is realized. Note that, since the second indoor unit switching element K2 remains open at this time, the second power line cannot supply power to the outdoor unit switching power supply 132 through the second indoor unit power supply line, the second connection line, and the outdoor unit power supply line.
In the above embodiment, the power supply line of the indoor unit may be connected to the live line L of the power supply line.
Fig. 5 is a schematic diagram of a circuit configuration of an air conditioner 10 according to still another embodiment of the present invention.
In still further embodiments, the connection between the indoor unit power supply line and the power supply line 110 can be changed. The indoor unit power supply line of the indoor unit can be connected to the neutral line N of the power supply line 110, which can improve the safety and reliability of the circuit switching process.
The air conditioner 10 of the present embodiment includes a power line 110, an indoor unit 120, an outdoor unit 130, and an inline assembly 140, wherein the inline assembly 140 is used for connecting the indoor unit 120 and the outdoor unit 130, and is configured to controllably connect the power line 110 to an outdoor unit switching power supply 132 or connect an indoor unit communication interface to an outdoor unit communication interface according to an operating state of the air conditioner 10, so that the air conditioner 10 of the present embodiment can automatically adjust a connection manner between the indoor unit 120 and the outdoor unit 130 according to the operating state. By improving the circuit structure of the air conditioner 10 by using the on-line component 140, the connection mode between the indoor unit 120 and the outdoor unit 130 is automatically switched, which is beneficial to simplifying the circuit. The air conditioner 10 can not only use the power line 110 to supply power to the outdoor unit switching power supply 132 when exiting the standby state, so as to power on the outdoor unit control circuit 131, thereby playing a role of "waking up the outdoor unit immediately", so as to not need to keep the outdoor unit 130 powered on in the standby state, but also can realize the communication between the indoor unit 120 and the outdoor unit 130 after the outdoor unit control circuit 131 is powered on.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An air conditioner comprising:
the power line is used for accessing an external power supply;
indoor set, be provided with in it:
an indoor unit control circuit having an indoor unit communication interface;
the off-premises station, be provided with in it:
an outdoor unit control circuit having an outdoor unit communication interface;
an outdoor unit switching power supply for supplying power to the outdoor unit control circuit;
and the on-line assembly is used for connecting the indoor unit and the outdoor unit and is configured to controllably connect the power line to the outdoor unit switching power supply or connect the indoor unit communication interface to the outdoor unit communication interface according to the working state of the air conditioner.
2. The air conditioner according to claim 1, wherein
The online component comprises:
a connection line having a first end for connecting to the indoor unit and a second end for connecting to the outdoor unit;
and the circuit switching assembly is configured to controllably connect the first end of the connecting wire to the power wire and connect the second end of the connecting wire to the outdoor unit switching power supply or connect the first end of the connecting wire to the indoor unit communication interface and connect the second end of the connecting wire to the outdoor unit communication interface according to the working state of the air conditioner.
3. The air conditioner according to claim 2, wherein
The circuit switching assembly includes:
the indoor unit switching component is arranged on the indoor unit and used for controllably connecting the first end of the connecting line to the power line or the indoor unit communication interface according to the working state of the air conditioner;
and the outdoor unit switching assembly is arranged on the outdoor unit and used for controllably connecting the second end of the connecting wire to the outdoor unit switching power supply or the outdoor unit communication interface according to the working state of the air conditioner.
4. The air conditioner according to claim 3, wherein
The indoor unit switching assembly comprises:
the indoor unit power supply line is used for connecting the power supply line;
and the indoor unit switching element is connected between the indoor unit power supply line and the first end of the connecting line and is used for controllably controlling the on-off of the indoor unit power supply line according to the working state of the air conditioner.
5. The air conditioner according to claim 3, wherein
The outdoor unit switching assembly comprises:
an outdoor unit power supply line for connecting the outdoor unit switching power supply;
the outdoor unit communication line is used for connecting the outdoor unit communication interface;
and the movable contact of the outdoor unit first switching element is connected with the second end of the connecting line, the first fixed contact of the outdoor unit first switching element is connected with the outdoor unit power supply line, the second fixed contact of the outdoor unit first switching element is connected with the outdoor unit communication line, and the outdoor unit first switching element is used for controllably controlling the opening and closing of the first fixed contact and the second fixed contact according to the working state of the air conditioner.
6. The air conditioner according to claim 3, wherein
The outdoor unit switching assembly further comprises:
an outdoor unit power line for connecting the power line to the outdoor unit switching power supply;
and the outdoor unit second switching element is connected between the outdoor unit power line and the outdoor unit switching power supply and is used for controlling the on-off of the outdoor unit power line in a controlled manner according to the working state of the air conditioner.
7. The air conditioner according to claim 6, wherein
The outdoor unit second switching element is configured to controllably turn off the outdoor unit power supply line when the air conditioner is switched to the standby state, and is further configured to controllably turn on the outdoor unit power supply line during the switching of the air conditioner from the standby state to the operating state.
8. The air conditioner according to claim 3, wherein
In the process that the air conditioner is switched from the standby state to the running state, the indoor unit switching assembly connects the first end of the connecting wire to the power wire, the outdoor unit switching assembly connects the second end of the connecting wire to the outdoor unit switching power supply to electrify the outdoor unit switching power supply, so that the outdoor unit switching power supply supplies power to the outdoor unit control circuit, after the outdoor unit switching power supply supplies power to the outdoor unit control circuit, the indoor unit switching assembly connects the first end of the connecting wire to the indoor unit communication interface, and the outdoor unit switching assembly connects the second end of the connecting wire to the outdoor unit communication interface.
9. The air conditioner according to claim 1,
the indoor unit control circuit includes:
a main controller of the indoor unit;
the indoor unit transmitting optocoupler is used for connecting a communication transmitting end of the indoor unit main controller;
the indoor unit receiving optocoupler is used for connecting a communication receiving end of the indoor unit main controller; and the transmitting side of the indoor unit transmitting optocoupler is connected with the receiving side of the indoor unit receiving optocoupler and used as the indoor unit communication interface.
10. The air conditioner according to claim 1,
the outdoor unit control circuit includes:
an outdoor unit main controller;
the outdoor unit transmitting optocoupler is used for connecting a communication transmitting end of the outdoor unit main controller;
the outdoor unit receiving optocoupler is used for connecting a communication receiving end of the outdoor unit main controller; and the transmitting side of the outdoor unit transmitting optocoupler is connected with the receiving side of the outdoor unit receiving optocoupler and is used as the outdoor unit communication interface.
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| CN108119994A (en) * | 2017-12-26 | 2018-06-05 | 奥克斯空调股份有限公司 | The low power consumpting controling circuit and Low-power-consumptiocontrol control method of air conditioner |
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Application publication date: 20210319 |