WO2022028308A1 - Air conditioner, operating control method, and computer readable storage medium - Google Patents

Abstract

Provided in the present disclosure are an air conditioner, an operating control method, and a computer readable storage medium, the air conditioner comprising: a solar power supply apparatus, the solar power supply apparatus being configured to convert solar energy into electrical energy and being capable of supplying power to the air conditioner; and a power source control apparatus, the power source control apparatus being configured to control an external power source and/or the solar power supply apparatus to supply power to the air conditioner on the basis of operating state information of the air conditioner. The technical solution provided in the present disclosure aims, by means of the solar power supply apparatus, to convert natural solar energy into the electrical energy required by the air conditioner and supply power to the air conditioner when the air conditioner is in a standby state. Thus, "zero power consumption" of the air conditioner in a standby state is achieved without affecting the normal use of the air conditioner by the user, reducing the power consumption of the air conditioner and being conducive to saving energy and environmental protection. When in a standby state, the connection of the air conditioner with the mains power supply is cut off, reducing safety hazards.

Description

Air conditioner, operation control method, and computer-readable storage medium

This disclosure claims the priority of the Chinese patent application with the application number "202010771181.3" and the invention title "Air conditioner, operation control method and computer-readable storage medium" filed with the State Intellectual Property Office of China on August 4, 2020, which The entire contents of this disclosure are incorporated by reference.

technical field

The present disclosure relates to the technical field of air conditioners, and in particular, to an air conditioner, an operation control method, and a computer-readable storage medium.

Background technique

At present, the market share of multi-connection products has accounted for more than 50% of the central air-conditioning field. In addition to the energy saving during normal operation, the high-efficiency multi-connection is standby power consumption. The standby time of multi-connection accounts for more than half of the year, and Most of them are commercial occasions, and the power supply is almost continuous all the year round, that is, the external machine is in standby state for 182.5 days or more than 4380 hours a year. The air conditioner in the related art cannot achieve zero standby power consumption, and the more internal and external units in the system, the greater the standby power consumption, which cannot meet the requirements of green buildings, zero energy, and zero emission buildings.

SUMMARY OF THE INVENTION

The present disclosure aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, a first aspect of the present disclosure is to propose an air conditioner.

A second aspect of the present disclosure is to propose an operation control method.

A third aspect of the present disclosure is to propose a computer-readable storage medium.

In view of this, according to a first aspect of the present disclosure, an air conditioner is proposed, the air conditioner is connected with an external power source, and the air conditioner includes: a solar power supply device, the solar power supply device is configured to convert the solar energy into electrical energy, and can be used for the air conditioner. The power supply control device is configured to control the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operating state information of the air conditioner.

In the above technical solution, the air conditioner includes: a voltage detection device connected to the power supply control device and the solar power supply device, the voltage detection device is configured to detect the power supply voltage output by the solar power supply device; the power supply control device is also configured according to the power supply voltage and Target voltage, control external power and/or solar power supply to power the air conditioner.

In any of the above technical solutions, the air conditioner includes: an outdoor unit; an indoor unit, the indoor unit is connected to the outdoor unit through a communication line; a communication component is connected to the communication line and connected to the power control device, and the communication component is configured to respond to the communication line The transmitted communication information is used to realize the information exchange between the outdoor unit and the indoor unit; the switch device is connected to the power supply control device and is arranged between the solar power supply device and the indoor unit, and the power supply control device is also configured according to the operating state information. , control the switching device to conduct, so that the communication line transmits power.

In any of the above technical solutions, the power supply control device includes: a power supply circuit, connected to the solar power supply device or an external power supply, the power supply circuit is configured to control the supply voltage to supply power to the air conditioner; a controller, connected to the communication component and the power supply circuit, controls The air conditioner is configured to control the solar power supply device or an external power source to power the air conditioner according to the operating state information.

In any of the above technical solutions, the number of indoor units is one or more, the plurality of indoor units are sequentially connected through a communication line, and any indoor unit among the plurality of indoor units is connected to the outdoor unit through a communication line.

According to a second aspect of the present disclosure, an operation control method is proposed, which is applicable to the air conditioner proposed in the first aspect. The operation control method includes: acquiring operation state information of the air conditioner; and controlling an external power supply and/or an external power source according to the operation state information. The solar powered unit powers the air conditioner.

In any of the above technical solutions, the air conditioner includes an outdoor unit, an indoor unit and a switch device, and the switch device is arranged between the solar power supply device and the indoor unit; according to the operating state information, the external power supply and/or the solar power supply device is controlled to be the air conditioner The step of supplying power specifically includes: determining the operating state of the air conditioner according to the operating state information; controlling the switching device to turn on based on the fact that the air conditioner is in a standby state, and controlling the solar power supply device to supply power to the air conditioner; based on the fact that the air conditioner is in a working state, then The switching device is controlled to be turned off, and the external power supply is controlled to supply power to the air conditioner.

In any of the above technical solutions, the number of indoor units is multiple; the step of controlling the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operating state information further includes: based on any indoor unit among the multiple indoor units If the unit is in the working state, the external power supply is controlled to supply power to the outdoor unit; the switching device is controlled to be turned on, and the solar power supply device is controlled to supply power to the indoor unit in the working state.

In any of the above technical solutions, the power supply control device includes a power supply circuit, and the power supply circuit is connected to the solar power supply device or an external power source; the step of controlling the solar power supply device to supply power to the air conditioner specifically includes: controlling the power supply circuit to connect the solar power supply device, and The control power supply circuit disconnects the external power supply.

In any of the above technical solutions, the step of controlling the external power supply to supply power to the outdoor unit specifically includes: controlling the power supply circuit to connect the external power supply, and controlling the power supply circuit to disconnect the solar power supply device.

In any of the above technical solutions, the step of controlling the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operating state information specifically includes: acquiring the power supply voltage output by the solar power supply device; based on the fact that the power supply voltage is greater than or equal to the target voltage, Then, according to the operating state information, the external power supply and/or the solar power supply device is controlled to supply power to the air conditioner.

In any of the above technical solutions, the method further includes: controlling the switching device to be turned off based on the supply voltage being less than the target voltage, and controlling the external power supply to supply power to the air conditioner.

According to a third aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, executes the steps of the operation control method proposed in the second aspect.

In the technical solution of the present disclosure, the natural solar energy is converted into the electric energy required by the air conditioner by arranging the solar power supply device. When the air conditioner is in the standby state, the power supply control device controls the air conditioner to switch to the solar power supply mode in time, so as to control the solar power supply device to supply power to the air conditioner. Similarly, when the air conditioner is in a working state, the power control device controls the air conditioner to switch to the power supply mode, so as to control the commercial power supply to supply power to the air conditioner. Therefore, without affecting the normal use of the air conditioner by the user, "zero power consumption" of the air conditioner in the standby state is realized, and the power consumption of the air conditioner itself is reduced, which is beneficial to energy conservation and environmental protection. Moreover, in the standby state, the connection between the commercial power supply and the air conditioner is cut off, which can reduce safety hazards. In addition, the solar power supply device adopts a general-purpose device, which has a simple structure and high reliability, which is conducive to large-scale production.

Description of drawings

In order to illustrate the embodiments of the present disclosure or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 shows a schematic block diagram of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 shows a schematic block diagram of an air conditioner according to still another embodiment of the present disclosure;

FIG. 3 shows a schematic diagram of a power supply circuit according to still another embodiment of the present disclosure;

FIG. 4 shows a schematic flowchart of an operation control method according to an embodiment of the present disclosure;

FIG. 5 shows a schematic flowchart of an operation control method according to still another embodiment of the present disclosure;

FIG. 6 shows a schematic flowchart of an operation control method according to still another embodiment of the present disclosure;

FIG. 7 shows a schematic flowchart of an operation control method according to still another embodiment of the present disclosure;

FIG. 8 shows a schematic flowchart of a method for controlling a main outdoor unit according to a specific embodiment of the present disclosure;

FIG. 9 shows a schematic flowchart of a method for controlling an indoor unit according to another specific embodiment of the present disclosure.

Description of reference numbers:

100 air conditioners, 102 solar power supply devices, 1022 solar panels, 1024 photoelectric conversion components, 104 power control devices, 1042 power supply circuits, 1044 controllers, 106 voltage detection devices, 108 communication components, 110 outdoor units, 120 indoor units, 130 loads , 140 communication lines, 150 switching power supply chips.

The realization, functional characteristics and advantages of the present disclosure will be further described with reference to the accompanying drawings in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present disclosure are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present disclosure are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

In the present disclosure, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present disclosure can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by this disclosure.

An air conditioner, an operation control method, and a computer-readable storage medium according to some embodiments of the present disclosure are described below with reference to FIGS. 1 to 9 .

Example 1:

As shown in FIG. 1 , according to an embodiment of the first aspect of the present disclosure, an air conditioner 100 is provided. The air conditioner 100 includes a solar power supply device 102 and a power supply control device 104 .

In detail, in order to facilitate the collection of solar energy, the solar power supply device 102 is installed outdoors, and is used to collect solar radiation energy and convert the solar radiation energy into electrical energy required by the air conditioner 100 . The power supply control device 104 is connected to the solar power supply device 102 or the external power supply of the air conditioner 100, and the power supply control device 104 is configured to control the external power supply and/or the solar power supply device 102 to supply power to the air conditioner 100 according to the operating state information of the air conditioner 100, In order to change the power supply mode of the air conditioner 100 . The power control device 104 is connected to the solar power supply device 102, the air conditioner 100 can be powered by solar energy, the power control device 104 is connected to an external power source, and the air conditioner 100 can be powered by commercial power.

In this embodiment, the solar power supply device 102 is provided to convert natural solar energy into electric energy required by the air conditioner 100 . When the air conditioner 100 is in the standby state, the power control device 104 controls the air conditioner 100 to switch to the solar power supply mode in time, so as to control the solar power supply device 102 to supply power to the air conditioner 100 . Similarly, when the air conditioner 100 is in the working state, the power control device 104 controls the air conditioner 100 to switch to the power supply mode, so as to control the commercial power supply to supply power to the air conditioner 100 . Therefore, without affecting the normal use of the air conditioner by the user, the "zero power consumption" of the air conditioner 100 in the standby state is realized, and the power consumption of the air conditioner 100 itself is reduced, which is beneficial to energy conservation and environmental protection. Moreover, in the standby state, the connection between the commercial power supply and the air conditioner 100 is cut off, which can reduce safety hazards. In addition, the solar power supply device 102 adopts a general-purpose device, which has a simple structure and high reliability, which is favorable for large-scale production.

Specifically, as shown in FIG. 2 , the solar power supply device 102 includes a solar panel 1022 and a photoelectric conversion component 1024 that are connected to each other. The solar panel 1022 collects solar energy, and the photoelectric conversion component 1024 converts the collected solar energy into electrical energy for the air conditioner. device 100 is used. In addition, the number of solar panels 1022 is multiple. Since multiple solar panels 1022 can be installed separately, solar energy collection can also be performed in some occasions with small spaces, and multiple solar panels 1022 collect solar energy at the same time, which is beneficial to improve the converted electrical energy.

Example 2:

As shown in FIG. 2 , according to an embodiment of the first aspect of the present disclosure, an air conditioner 100 is provided. The air conditioner 100 includes a solar power supply device 102 , a power supply control device 104 and a voltage detection device 106 .

Specifically, the voltage detection device 106 is respectively connected to the power supply control device 104 and the solar power supply device 102 , and is used to detect the power supply voltage converted and output by the solar power supply device 102 and send it to the power supply control device 104 . The power control device 104 can compare the magnitude relationship between the supply voltage and the target voltage, and control the external power supply and/or the solar power supply device 102 to supply power to the air conditioner 100 based on the magnitude relationship between the supply voltage and the target voltage.

In this embodiment, the magnitude of the electrical energy that can be converted by the currently collected solar energy, that is, the power supply voltage, is detected by the voltage detection device 106 . By comparing the relationship between the supply voltage and the target voltage to control whether to use solar power. If the power supply voltage is lower than the target voltage, it means that the electric energy converted from solar energy cannot meet the energy consumed by the air conditioner 100 when it is in standby, and the external power supply is continued to be controlled to supply power to the electric load 130 of the air conditioner 100 . If the power supply voltage is greater than or equal to the target voltage, it means that the solar power supply device 102 can support the power demand of the air conditioner 100 when the air conditioner 100 is in standby. Thereby, it is prevented that the power supply is insufficient due to factors such as long-term rainy weather, wire transmission loss, etc., which affects the normal use of the air conditioner 100 by the user, thereby realizing the "zero power consumption" of the air conditioner 100 in the standby state under the condition of ensuring the operation of the air conditioner, and reducing the consumption of the air conditioner 100. Energy, energy saving and environmental protection, reduce operation and maintenance costs.

In some possible designs, in order to avoid adverse effects on solar power supply caused by weather, transmission, etc., an energy storage device for storing electrical energy converted by the solar power supply device 102 may also be provided in the air conditioner 100 . When it is detected that the power supply voltage is lower than the target voltage, the energy storage device is controlled to release electric energy to meet the solar power supply demand. Only when the power of the energy storage device is insufficient will the external power supply be controlled. Moreover, when the solar power supply device 102 does not need to supply power to the air conditioner 100 , the energy storage device is charged in time to ensure that the energy storage device has enough electricity.

Example 3:

As shown in FIG. 2, according to an embodiment of the present disclosure, an air conditioner 100 is proposed, including: an indoor unit 120, an outdoor unit 110, a communication component 108, a solar power supply device 102, a power supply control device 104, and a voltage detection device 106.

In detail, the indoor unit 120 and the outdoor unit 110 are connected by the communication line 140 . The communication component 108 is connected to the communication line 140 and is connected to the power control device 104 . Communication component 108 is used to receive and/or transmit communication information over communication line 140 . The switching device is connected to the power control device 104 and is arranged between the solar power supply device 102 and the indoor unit 120 . The switch device is used to control the connection or disconnection of the solar power supply device 102 and the indoor unit 120 . The voltage detection device 106 is connected to the power control device 104 and the solar power supply device 102, respectively.

In this embodiment, both the indoor unit 120 and the outdoor unit 110 are provided with a communication component 108, and the communication component 108 responds to the communication information transmitted by the communication line 140 to realize information exchange between the outdoor unit 110 and the indoor unit 120. The power control device 104 can also control the switching device to be turned on according to the operating state information, so that the communication line 140 transmits power. Thus, the solar power supply device 102 is controlled to supply power to the indoor unit 120 through the switching device. In the standby state, the indoor unit 120 and the outdoor unit 110 can completely disconnect the external power supply, so that the standby power consumption of the AC power of the air conditioner 100 is reduced to 0W, thereby realizing energy saving and emission reduction. At the same time, the safety hazard of being powered by an external power supply in the standby state is eliminated.

In some possible designs, the power control device 104 is disposed inside the indoor unit 120 and the outdoor unit 110, respectively. The power control device 104 provided in the outdoor unit 110 is used to control the external power supply and/or the solar power supply device 102 to supply power to the load 130 of the outdoor unit 110 . The power supply control device 104 provided in the indoor unit 120 is connected to the solar power supply device 102 through the communication line 140 for controlling the external power supply and/or the solar power supply device 102 to supply power to the load 130 of the indoor unit 120 . Similarly, the voltage detection device 106 may be installed inside the indoor unit 120 and the outdoor unit 110, respectively. The voltage detection device 106 provided in the outdoor unit 110 is used to determine whether the power supply voltage output by the solar power supply device 102 meets the electricity demand of the load 130 of the outdoor unit 110 . The voltage detection device 106 provided in the indoor unit 120 is used to determine whether the power supply voltage transmitted by the communication line 140 to the indoor unit 120 meets the electricity demand of the load 130 of the indoor unit 120 .

Specifically, the communication line 140 can realize both the communication function and the power supply function. Therefore, it is not necessary to separately set two communication lines 140 and two power lines, thereby effectively reducing costs, installation time, expenses, and the like. The communication line 140 can supply power and avoid the situation that the indoor unit 120 is powered off and the electronic expansion valve is not closed in the air conditioning system. In addition, there are two ways to transmit power supply and communication information on the same communication bus. One is the carrier wave method. Power supply and communication are carried out at the same time, and the communication information is loaded on the power supply. For example, Homebus (home bus), PLC (optional) Editing controller), etc.; the other is time-sharing of power supply and communication, that is, communication and power supply are carried out separately, part-time communication, part-time communication, for example, Powerbus (power bus).

Example 4:

As shown in FIG. 1 , according to an embodiment of the present disclosure, an air conditioner 100 is proposed, including a solar power supply device 102 and a power supply control device 104 , wherein the power supply control device 104 includes a power supply circuit 1042 and a controller 1044 .

In detail, one input end of the power supply circuit 1042 is connected to the solar power supply device 102 , the other input end of the power supply circuit 1042 is connected to an external power source, and the output end of the power supply circuit 1042 is connected to the load 130 of the air conditioner 100 . The power supply circuit 1042 includes a rectifier, an inverter, and switching devices. The controller 1044 is connected to the communication component 108 and the power supply circuit 1042 for obtaining operating status information, and controlling the power supply circuit 1042 to connect the solar power supply device 102 or an external power source to supply power to the air conditioner 100 according to the operating status information.

In this embodiment, the power supply circuit 1042 converts the power supply voltage output by the solar power supply device 102 or the external power supply into the operating voltage and operating current required by the load 130, thereby controlling the air conditioner 100 to supply power. It is convenient to realize the current control of the working state of the power supply circuit 1042, ensures the stability of the operation of the power supply circuit 1042, ensures that the driven load 130 can operate normally, and has high reliability. The controller 1044 switches the input end of the power supply circuit 1042 by controlling the switching device, so as to realize the adjustment of the power supply mode under different operating states of the air conditioner, realize the "zero power consumption" of the air conditioner 100 in the standby state, reduce the power consumption of the air conditioner 100 itself, and reduce the power consumption of the air conditioner 100. Eliminates the safety hazard of being powered by an external power supply in the standby state.

Specifically, the switching device may be a switching device such as a relay, a contactor, etc., to realize the conduction and closing of the loop. The switching power supply on the circuit board, such as DC-DC, can also be controlled by the MCU (controller 1044) combined with the optocoupler. For example, as shown in Figure 3, let the optocoupler secondary control the input over-voltage protection, over-current protection, output over-voltage protection, etc. of the switching power supply chip 150, so that the switching power supply does not work to cut off the connection with the external power supply. The cost of this method is extremely low, and the circuit is mature and reliable. If the switching power supply protection strategy is active at low level, the control circuit shown in Figure 3 can be used, the MCU outputs a low level, the switching power supply protection adopts solar power supply, the MCU outputs a high level, and the external power supply is used for power supply, and the switching power supply is normally powered.

Example 5:

As shown in FIG. 2 , according to an embodiment of the present disclosure, an air conditioner 100 is proposed, wherein the number of indoor units 120 is one or more, and the plurality of indoor units 120 are sequentially connected through communication lines 140 , Any one of the indoor units 120 among the plurality of indoor units 120 is connected to the outdoor unit 110 through the communication line 140 .

In this embodiment, the air conditioner 100 includes one indoor unit 120 and at least one indoor unit 120. A plurality of indoor units 120 are connected in series with each other through a communication line 140, and the indoor unit 120 only needs to be connected in series with any indoor unit 120. The effect of connecting to multiple indoor units 120 in the system.

Specifically, the outdoor unit 110 can obtain the operation state information of the indoor unit 120 through the communication component 108. When all the indoor units 120 are in the standby state, the outdoor unit 110 can be controlled to enter the standby state, and the solar power supply device 102 is controlled to be The outdoor unit 110 supplies power, and at the same time, the switch device is turned on, so that the electric energy converted by the solar power supply device 102 can be transmitted to the indoor unit 120 through the communication line 140 , so that the solar power supply device 102 supplies power to the indoor unit 120 . When all the indoor units 120 are in the working state, the power control device 104 controls the external power supply to supply power to the indoor units 120 and the outdoor units 110, and turns off the switching devices. When some of the indoor units 120 of all the indoor units 120 are in the working state and the other indoor units 120 are in the standby state, the outdoor unit 110 is powered by the commercial power to meet the working requirements of some of the indoor units 120 . At the same time, the switching device is turned on, so that the electric energy converted by the solar power supply device 102 can be transmitted to the indoor unit 120 in the standby state through the communication line 140, so that the indoor unit 120 in the standby state is powered by solar energy. Thereby reducing the energy consumption of the air conditioning system to the greatest extent.

Example 6:

As shown in FIG. 4 , according to an embodiment of the second aspect of the present disclosure, an operation control method is proposed, which is applicable to the air conditioner provided by the embodiment of the first aspect, and the method includes:

Step 302, obtaining operating status information of the air conditioner;

Step 304 , control the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operating state information.

In this embodiment, when the air conditioner is in a standby state, the power supply control device controls the air conditioner to switch the solar power supply mode in time, so as to control the solar power supply device to supply power to the air conditioner. Similarly, when the air conditioner is in a working state, the power control device controls the air conditioner to switch to an external power supply mode, so as to control the commercial power supply to supply power to the air conditioner. Therefore, without affecting the normal use of the air conditioner by the user, "zero power consumption" of the air conditioner in the standby state is realized, and the power consumption of the air conditioner itself is reduced, which is beneficial to energy conservation and environmental protection. Moreover, in the standby state, the connection between the commercial power supply and the air conditioner is cut off, which can reduce safety hazards.

Example 7:

As shown in FIG. 5 , according to an embodiment of the present disclosure, an operation control method is provided, which is applicable to the air conditioner provided by the embodiment of the first aspect, and the method includes:

Step 402, obtaining operating status information of the air conditioner;

Step 404, determining the operating state of the air conditioner according to the operating state information;

Step 406, whether the air conditioner is in the standby state, if yes, go to Step 408, if not, go to Step 410;

Step 408, controlling the switching device to be turned on, and controlling the solar power supply device to supply power to the air conditioner;

In step 410, the switching device is controlled to be turned off, and the external power source is controlled to supply power to the air conditioner.

In this embodiment, the current operating state of the air conditioner is determined according to the operating state information of the air conditioner. If the air conditioner is in a standby state, that is, both the indoor and outdoor units of the air conditioner are on standby, the solar power supply device is controlled to be the outdoor unit of the air conditioner. power supply, and control the switching device to conduct at the same time, so that the electric energy converted by the solar power supply device can be transmitted to the indoor unit through the communication line, and then the solar power supply device is controlled to supply power to the indoor unit of the air conditioner. If the air conditioner is in the working state, that is, the indoor and outdoor units of the air conditioner are both working, the external power supply is controlled to supply power to the indoor and outdoor units of the air conditioner, and the switching device is controlled to be turned off, so as to prevent the electric energy converted by the solar power supply device from being transmitted to the air conditioner through the communication line. Indoor unit, causing voltage instability and other problems. Thereby, the standby power consumption of the AC power of the air conditioner is reduced to 0W, which realizes energy saving and emission reduction, reduces potential safety hazards, and improves the safety of the air conditioner.

Specifically, the step of controlling the external power supply to supply power to the outdoor unit includes: controlling the power supply circuit of the power supply control device to connect the external power supply, and controlling the power supply circuit to cut off the connection with the solar power supply device. The step of controlling the solar power supply device to supply power to the air conditioner includes: controlling the power supply circuit of the power supply control device to connect the solar power supply device, and controlling the power supply circuit to cut off the connection with the external power supply.

Example 8:

As shown in FIG. 6 , according to an embodiment of the present disclosure, an operation control method is proposed, which is applicable to the air conditioner provided by the embodiment of the first aspect, and the method includes:

Step 502, obtaining operating status information of multiple indoor units;

Step 504, determining the operating states of a plurality of indoor units and outdoor units according to the operating state information;

Step 506, check whether all the indoor units are in the standby state, if yes, go to Step 508, if not, go to Step 510;

Step 508, controlling the switching device to be turned on, and controlling the solar power supply device to supply power to a plurality of indoor units and outdoor units;

Step 510, check whether all the indoor units are in working state, if yes, go to Step 512, if not, go to Step 514;

Step 512, controlling the switching device to be turned off, and controlling the external power supply to supply power for multiple indoor units and outdoor units;

Step 514 , controlling the external power source to supply power to the outdoor unit, controlling the switching device to be turned on, and controlling the solar power supply device to supply power to the indoor unit in a working state.

In this embodiment, the indoor unit is controlled to work or stand by in response to the control command of the air conditioner, and operating status information is generated at the same time, and the current operating status of the indoor unit and the outdoor unit can be determined according to the operating status information. When all the multiple indoor units are in the standby state, the outdoor unit also enters the standby state, and at this time, the solar power supply device is controlled to supply power to the multiple indoor units and the outdoor units. When all the indoor units are in the working state, the outdoor unit also enters the working state. In order to meet the working requirements of the air conditioner, the external power supply is controlled to supply power to the multiple indoor and outdoor units. When some of the indoor units are in the working state and the rest are in the standby state, the outdoor unit is powered by the mains to meet the working requirements of some indoor units, and the switch device is turned on at the same time to make the solar power supply device The converted electric energy can be transmitted to the indoor unit in the standby state through the communication line, so that the indoor unit in the standby state is powered by solar energy, which minimizes the energy consumption of the air conditioning system.

Specifically, the step of generating the running state information includes: acquiring the standby duration of the indoor unit, generating standby state information based on the standby duration being greater than a duration threshold, and generating working state information based on the standby duration being less than or equal to the time threshold. Therefore, the time threshold is set to prevent the indoor unit from frequently switching the power supply mode when the operating state is changed rapidly and repeatedly, so as to ensure the power supply stability of the solar power supply device and prolong the service life of the air conditioner.

Example 9:

As shown in FIG. 7 , according to an embodiment of the present disclosure, an operation control method is provided, which is applicable to the air conditioner provided by the embodiment of the first aspect, and the method includes:

Step 602, obtaining operating status information of the air conditioner;

Step 604, determining the operating state of the air conditioner according to the operating state information;

Step 606, whether the air conditioner is in a standby state, if yes, go to Step 608, if not, go to Step 614;

Step 608, obtaining the power supply voltage output by the solar power supply device;

Step 610, whether the supply voltage is greater than or equal to the target voltage, if yes, go to Step 612, if not, go to Step 614;

Step 612, controlling the switching device to be turned on, and controlling the solar power supply device to supply power to the air conditioner;

In step 614, the switching device is controlled to be turned off, and the external power supply is controlled to supply power to the air conditioner.

In this embodiment, after it is determined that the air conditioner is in a standby state, the amount of electrical energy that can be converted from the currently collected solar energy, that is, the power supply voltage, is detected. By comparing the magnitude relationship between the power supply voltage and the target voltage, it is controlled whether to use solar power at present. If the power supply voltage is lower than the target voltage, it means that the electric energy converted by the solar energy cannot meet the energy consumed by the air conditioner when it is in standby, and the external power supply is continued to be controlled to supply power to the electric load of the air conditioner. If the power supply voltage is greater than or equal to the target voltage, it means that the solar power supply device can support the electricity demand when the air conditioner is in standby, and the power supply mode of the air conditioner is switched to control the solar power supply device to supply power to the air conditioner. In order to prevent long-term rainy weather, wire transmission loss and other factors from causing insufficient power supply and affecting the normal use of air conditioners Environmental protection, reduce operation and maintenance costs.

Specifically, considering the impedance of the communication line, the voltage may be different when the communication line is transmitted to the indoor units at different locations. The relationship between the power supply voltage of the outdoor unit and the target voltage is used to determine whether the electric energy converted from the solar energy can meet the electricity demand of all indoor and outdoor units.

Example 10:

As shown in FIG. 2 , according to a specific embodiment of the present disclosure, a multi-line air conditioning system is proposed, including: a plurality of indoor units 120 and a main outdoor unit (outdoor unit 110 ).

In detail, the main outdoor unit of the system is equipped with a solar panel 1022 for collecting solar energy. The photoelectric conversion component 1024 is used to convert the collected solar energy into a target voltage source. The power supply circuit 1042 can cut off the original external power supply circuit when the solar energy supplies power, and close the original external power supply when the air conditioner is running normally, that is, in a non-standby state. power supply circuit. The voltage detection device 106 (power detection circuit) is used to detect whether the current solar energy meets the power supply requirements, so as to prevent insufficient power supply caused by long-term rainy weather. The MCU is the main outdoor unit central controller (controller 1044 ), which is used to collect information and issue information and control commands, and the controller 1044 is also used to control whether solar power is currently used. The load 130 is a circuit and component that consumes power during the standby period of the main outdoor unit. The communication component 108 is a circuit that realizes the normal information exchange between indoor and outdoor units in the system, and simultaneously loads power and communication signals on the same bus, and the communication line 140 communicates and supplies power. Considering that even if the communication line 140 does not have this power supply function, the system still needs to connect the communication line 140 to realize information exchange, so the electric energy converted by solar energy is transmitted through the communication line 140 without adding a lot of additional cost and installation time and expense. In addition, the multi-connection system has the risk that the indoor unit 120 is powered off and the electronic expansion valve is not closed, resulting in water dripping, liquid backflow, damage to the compressor, and the system cannot operate normally. The communication line 140 can supply power and can also solve this problem.

It can be understood that there are two ways to transmit power and communication information on the same communication bus. One is the method of carrier wave, power supply and communication are carried out at the same time, and the communication information is loaded on the electrical signal, typically Homebus, PLC and so on. There is also a time-sharing for power supply and communication, such as Powerbus.

Similarly, the indoor unit 120 also includes a power supply circuit 1042, a voltage detection device 106, a load 130, a communication component 108, and a controller 1044. The functions of each device and circuit are the same as those of the main outdoor unit.

Specifically, the power supply circuit 1042 of the indoor unit 120 is mainly used to convert the electric energy converted from the solar energy on the communication line 140 into the electric energy required by the indoor unit 120, such as 12V DC power supply, because the communication line 140 has impedance, to the indoor unit at different locations. The voltage of the machine 120 may be different, and it needs to be converted into the required target voltage. The voltage detection device 106 mainly judges whether the electric energy converted by solar energy is sufficient. For example, the communication line 140 is very long, and the voltage transmitted to the indoor unit 120 may be The required target voltage cannot be converted, so solar power cannot be used for standby power supply, and the controller 1044 is mainly used to determine whether to turn on and off the solar power supply.

It should be noted that the structure of the non-master outdoor unit, that is, the slave outdoor unit, is the same as that of the slave unit.

Among them, the switching devices of the power supply circuit 1042 in the main outdoor unit and the indoor unit 120 can be very simple switching devices such as relays and contactors to realize the opening and closing of the circuit, or can be controlled by MCU + optocoupler on the circuit board. The switching power supply, DC-DC, etc., for example, let the optocoupler secondary control the switching power supply chip 150 input over-voltage protection, over-current protection, output over-voltage protection, etc., so that the switching power supply does not work, to achieve normal external power supply mains The cut off of the power supply circuit is very low cost, and the circuit is mature and reliable. Assuming that a certain protection of the switching power supply is active at low level, the control circuit shown in FIG. 3 can be used to control the input of the power supply circuit 1042, the MCU outputs a low level, the switching power supply is protected, and solar power is used, and the MCU outputs a high level, The external power supply is adopted, and the switching power supply is normally supplied.

Example 11:

As shown in FIG. 8 , according to a specific embodiment of the present disclosure, a method for controlling a main outdoor unit is proposed, including:

Step 702, query the status of all indoor units in the system;

Step 704, check whether all indoor units are in standby state for more than A time, if yes, go to step 706, if not, repeat step 704;

Step 706, whether the electric energy converted from the solar energy meets the power supply requirement, if yes, go to Step 708, if not, go to Step 704;

Step 708, disconnect the normal external power supply circuit, turn on the solar power supply, and send a message to notify other nodes of the system to turn on the solar power supply;

Step 710, whether all the indoor units are still in the standby state, if yes, go to Step 712, if not, go to Step 714;

Step 712, whether the electric energy converted by the solar energy meets the power supply requirement, if yes, go to step 710, if not, go to step 714;

Step 714, disconnecting its own solar power supply, restoring the normal external power supply circuit, and continuing to load the electrical energy converted from the solar energy to the communication line;

Step 716, whether the electric energy converted from the solar energy meets the power supply requirement, if yes, go to Step 718, if not, go to Step 720;

Step 718, whether all indoor units have exited the standby state, if yes, go to Step 720, if not, go to Step 714;

Step 720: Disconnect the electrical energy converted from the solar energy on the communication line, and use an external power supply for power supply.

In this embodiment, the main outdoor unit first inquires about the on/off status of all indoor units in the system, and if none of them has been turned on for more than time A (time A is mainly to set a hysteresis to prevent switching back and forth), then start to detect the current solar energy conversion Whether the electric energy is enough, if the electric energy converted by solar energy meets the power supply requirements, the main outdoor unit starts the solar power supply mode by itself, and loads the electric energy converted from solar energy to the bus, and at the same time sends a message to notify all nodes in the system that they can try to turn on the solar energy supply. Check whether the indoor units of the current system are still in the standby state. If not, there is a working indoor unit. The main outdoor unit disconnects the solar power supply and restores the normal power supply, but the electric energy converted from the solar energy continues to be loaded into the communication line. To supply power to some of the indoor units that are still in standby, unless all the indoor units are running, the electric energy converted by solar energy will not be loaded into the communication line at all. If it is, continue to detect whether the solar power supply meets the requirements, if so, continue the cycle, if not, disconnect the solar power supply, and all return to normal power supply. In this way, the solar energy energy is used, and the electric energy converted by solar energy is transmitted to each node of the system through the medium of the original communication line of the system. When the system is in standby, all the internal and external units of the system use solar energy to supply power to achieve zero standby power consumption.

Example 12:

As shown in FIG. 9 , according to a specific embodiment of the present disclosure, a method for controlling an indoor unit is proposed, including:

Step 802, check whether the standby state exceeds the time A, if yes, go to Step 804, if not, repeat Step 802;

Step 804, whether the information that the outdoor unit can turn on the solar power supply is received, if yes, go to Step 806, if not, go to Step 802;

Step 806, whether the electric energy converted from the solar energy of the communication line meets the power supply requirement, if yes, go to Step 808, if not, go to Step 802;

Step 808, disconnect the normal external power supply circuit, and turn on the solar power supply;

Step 810, whether it is still in the standby state, if yes, go to step 812, if not, go to step 814;

Step 812, whether the electric energy converted by the solar energy meets the power supply requirement, if yes, go to Step 810, if not, go to Step 814;

Step 814: Disconnect the solar power supply by itself, and restore the normal external power supply circuit.

In this embodiment, each indoor unit first checks whether it is in the standby state and the standby time exceeds the A duration, and then judges whether it has received the information from the main outdoor unit that the solar power supply mode can be turned on. Whether the electric energy converted by the solar energy transmitted to its own location still meets the power supply requirements, if so, switch the original normal power supply circuit, turn on the solar power supply standby mode, and always judge whether it is still in the standby state after it is turned on, and if not, disconnect the solar energy Power supply, restore normal power supply, if it is still in standby state, determine whether the solar power supply meets the power supply requirements, continue to supply power if it is satisfied, and exit if it is not satisfied.

Specifically, the difference between the slave outdoor unit and the indoor unit is that whether the slave outdoor unit is in standby or powered on is determined by the master outdoor unit.

Example 13:

According to an embodiment of a third aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, executes the steps of the operation control method of the embodiment of the second aspect. Therefore, the computer-readable storage medium has all the beneficial effects of the operation control method of the embodiment of the second aspect.

In the description of this specification, the terms "first" and "second" are only used for the purpose of description, and should not be construed as indicating or implying relative importance, unless otherwise explicitly specified and limited; the terms "connection", " "Installation" and "fixing" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in the present disclosure at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present disclosure, and are not intended to limit the scope of the present disclosure. Under the concept of the present disclosure, any equivalent structural transformations made by using the contents of the present disclosure and the accompanying drawings, or directly/indirectly applied to other related The technical fields of the present disclosure are included in the scope of patent protection of the present disclosure.

Claims (13)

1. An air conditioner connected with an external power supply, wherein the air conditioner comprises:

   a solar power supply device configured to convert solar energy into electrical energy and capable of powering the air conditioner;

   A power supply control device, the power supply control device is configured to control the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operating state information of the air conditioner.
2. The air conditioner of claim 1, further comprising:

   a voltage detection device, connected to the power control device and the solar power supply device, the voltage detection device is configured to detect the power supply voltage output by the solar power supply device;

   The power supply control device is further configured to control the external power supply and/or the solar power supply device to supply power to the air conditioner according to the supply voltage and the target voltage.
3. The air conditioner of claim 1, further comprising:

   The outdoor unit;

   an indoor unit, the indoor unit is connected to the outdoor unit through a communication line;

   a communication component, connected to the communication line and connected to the power control device, the communication component is configured to respond to the communication information transmitted by the communication line, so as to realize the information between the outdoor unit and the indoor unit interact;

   a switching device connected to the power supply control device and arranged between the solar power supply device and the indoor unit, the power supply control device is further configured to control the switching device to be turned on according to the operating state information , so that the communication line transmits power.
4. The air conditioner according to claim 3, wherein the power control device comprises:

   a power supply circuit, connected to the solar power supply device or the external power supply, the power supply circuit is configured to control the power supply voltage to supply power to the air conditioner;

   A controller is connected to the communication component and the power supply circuit, and the controller is configured to control the solar power supply device or the external power supply to supply power to the air conditioner according to the operation state information.
5. The air conditioner according to claim 3 or 4, wherein,

   The number of the indoor units is one or more, the plurality of indoor units are connected in sequence through the communication line, and any one of the indoor units in the plurality of indoor units is connected to the Outdoor unit connection.
6. An operation control method, applicable to the air conditioner according to any one of claims 1 to 5, comprising:

   obtaining operating status information of the air conditioner;

   According to the operating state information, the external power supply and/or the solar power supply device is controlled to supply power to the air conditioner.
7. The operation control method according to claim 6, wherein the air conditioner comprises an indoor unit and a switching device, the switching device being provided between the solar power supply device and the indoor unit; information, the step of controlling the external power supply and/or the solar power supply device to supply power to the air conditioner, specifically includes:

   determining the operating state of the air conditioner according to the operating state information;

   Based on the fact that the air conditioner is in a standby state, controlling the switching device to be turned on, and controlling the solar power supply device to supply power to the air conditioner;

   Based on the working state of the air conditioner, the switching device is controlled to be turned off, and the external power source is controlled to supply power to the air conditioner.
8. The operation control method according to claim 7, wherein the number of the indoor units is plural; the control of the external power supply and/or the solar power supply device to be the air conditioner according to the operation state information The steps of supplying power also include:

   Controlling the external power source to supply power to the outdoor unit based on the fact that any one of the indoor units in the plurality of indoor units is in the working state;

   The switching device is controlled to be turned on, and the solar power supply device is controlled to supply power to the indoor unit in the working state.
9. The operation control method according to claim 7, wherein the power control device includes a power supply circuit, and the power supply circuit is connected to the solar power supply device or the external power supply; the controlling the solar power supply device is the The steps of supplying power to the air conditioner include:

   The power supply circuit is controlled to switch on the solar power supply device, and the power supply circuit is controlled to disconnect the external power supply.
10. The operation control method according to claim 9, wherein the step of controlling the external power supply to supply power to the outdoor unit specifically includes:

    The power supply circuit is controlled to turn on the external power supply, and the power supply circuit is controlled to disconnect the solar power supply device.
11. The operation control method according to any one of claims 7 to 10, wherein the step of controlling the external power supply and/or the solar power supply device to supply power to the air conditioner according to the operation state information, Specifically include:

    obtaining the power supply voltage output by the solar power supply device;

    Based on the fact that the power supply voltage is greater than or equal to the target voltage, the external power supply and/or the solar power supply device is controlled to supply power to the air conditioner according to the operating state information.
12. The operation control method according to claim 11, further comprising:

    Based on the supply voltage being less than the target voltage, the switching device is controlled to be turned off, and the external power supply is controlled to supply power to the air conditioner.
13. A computer-readable storage medium on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the operation control method according to any one of claims 6 to 12 are executed.

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