Power supply method, power supply device and air conditioner

Abstract

This invention provides a power supply method, a power supply device, and an air conditioner. The power supply method includes: acquiring the instantaneous voltage characteristics of solar energy converted into electrical energy, and making a judgment based on the instantaneous voltage characteristics; determining that the instantaneous voltage characteristics meet the user's power demand, then supplying power to the air conditioner via solar energy; determining that the instantaneous voltage characteristics do not meet the user's power demand, then supplying power to the air conditioner via mains power. This invention, by acquiring the voltage of solar energy converted into electrical energy, prioritizes solar energy as the power source for the air conditioner when the converted voltage meets the user's needs, and uses mains power as the power source when the converted voltage does not meet the user's needs. This ensures the sustainability of the air conditioner's power supply and the stability of its operation, thereby improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of home appliance technology, and in particular to a power supply method, power supply device and air conditioner for an air conditioner. Background Technology

[0002] Currently, new energy sources have become a new direction for development in this century. However, due to various factors, the power supply in some areas is unstable, and power outages frequently occur, causing considerable inconvenience to people's lives. Meanwhile, some areas have abundant solar energy resources. How to combine solar energy and electricity to ensure the power supply needs of air conditioners and improve the user experience has become an urgent problem to be solved. Summary of the Invention

[0003] This invention provides a power supply method, power supply device, and air conditioner for an air conditioner, in order to solve the above-mentioned defects in the prior art.

[0004] According to a first aspect of the present invention, a power supply method for an air conditioner includes: a solar energy collection unit, an air conditioner body, and a sampling resistor;

[0005] The solar energy collection unit is connected to the air conditioner body and is used to convert solar energy into electrical energy and supply power to the air conditioner body;

[0006] The sampling resistor is connected to the solar energy acquisition unit and is used to detect the voltage corresponding to the conversion of solar energy into electrical energy.

[0007] The method includes:

[0008] Acquire the instantaneous voltage characteristics of solar energy converted into electrical energy, and make a judgment based on the instantaneous voltage characteristics;

[0009] If the instantaneous voltage characteristics are determined to meet the user's power demand, then the air conditioner body is powered by solar energy.

[0010] If it is determined that the instantaneous voltage characteristics do not meet the user's power demand, then the air conditioner body is powered by mains power.

[0011] According to one embodiment of the present invention, the step of determining that the instantaneous voltage characteristics meet the user's power demand, and then supplying power to the air conditioner body via solar energy, specifically includes:

[0012] Obtain the first instantaneous power supply characteristic of the mains power, and make a judgment based on the first instantaneous power supply characteristic;

[0013] If the first instantaneous power supply characteristic is determined to meet the preset power supply characteristic, then the energy storage device is charged by the mains power.

[0014] According to one embodiment of the present invention, the step of determining that the first instantaneous power supply characteristic satisfies a preset power supply characteristic specifically includes:

[0015] Extract N first instantaneous power supply feature values ​​from the first instantaneous power supply feature, where N is a positive integer greater than 1;

[0016] Obtain K interval duration features between two adjacent first instantaneous power supply feature values, and make a judgment based on the interval duration features, where K is a positive integer less than N;

[0017] If the number of interval duration characteristics less than a preset power supply interval meets a preset threshold, then the first instantaneous power supply characteristic meets the preset power supply characteristic.

[0018] According to one embodiment of the present invention, the step of determining that the instantaneous voltage characteristics do not meet the user's power demand, and then supplying power to the air conditioner body via mains power, specifically includes:

[0019] Obtain the target voltage characteristics of the user's electricity demand, and extract the first offset feature between the instantaneous voltage characteristics and the target voltage characteristics, wherein the first offset feature represents the voltage difference between the instantaneous voltage characteristics and the target voltage characteristics;

[0020] Based on the first offset feature, a power supply strategy for the air conditioner body is determined using mains power, and the mains power is controlled to supply power to the air conditioner body according to the power supply strategy.

[0021] According to one embodiment of the present invention, the step of determining the power supply strategy for the air conditioner body based on the first offset feature specifically includes:

[0022] Acquire the second instantaneous power supply characteristic of the mains power, and make a judgment based on the second instantaneous power supply characteristic;

[0023] If the second instantaneous power supply feature is determined to satisfy the first offset feature, a power supply strategy for supplying power to the air conditioner body via mains power is generated.

[0024] If it is determined that the second instantaneous power supply feature does not satisfy the first offset feature, a power supply strategy is generated that supplies power to the energy storage device through the mains power and supplies power to the air conditioner body through the energy storage device.

[0025] According to one embodiment of the present invention, the step of determining based on the second instantaneous power supply characteristic specifically includes:

[0026] Extract M second instantaneous power supply feature values ​​from the second instantaneous power supply feature, where M is a positive integer greater than 1;

[0027] Obtain the second offset feature of any two adjacent second instantaneous power supply feature values, and make a judgment based on the second offset feature, wherein the second offset feature represents the power outage frequency and / or power outage duration of the mains power;

[0028] If the second offset feature is determined to be less than a preset offset threshold, then the second instantaneous power supply feature satisfies the first offset feature; otherwise, the second instantaneous power supply feature does not satisfy the first offset feature.

[0029] According to one embodiment of the present invention, the method is applied to areas where the continuous power supply duration and / or total power supply duration of the mains power is less than or equal to the rated power supply duration.

[0030] According to one embodiment of the present invention, the method is applied to areas where the frequency and / or duration of mains power outages are greater than or equal to the rated power supply interval.

[0031] According to a second aspect of the present invention, a power supply device for an air conditioner includes: an acquisition and determination module, a first determination module, and a second determination module;

[0032] The acquisition and judgment module is used to acquire the instantaneous voltage characteristics of solar energy converted into electrical energy, and to make judgments based on the instantaneous voltage characteristics.

[0033] The first determining module is used to determine if the instantaneous voltage characteristics meet the user's power demand, and then to supply power to the air conditioner body through solar energy;

[0034] The second determining module is used to determine that if the instantaneous voltage characteristics do not meet the user's power demand, then the air conditioner body is powered by mains power.

[0035] According to a third aspect of the present invention, an air conditioner is powered by the above-described power supply method or the above-described power supply device for an air conditioner.

[0036] The above-mentioned one or more technical solutions of the present invention have at least one of the following technical effects: The power supply method, power supply device and air conditioner provided by the present invention obtain the voltage of solar energy converted into electrical energy, and determine that the converted voltage meets the user's needs, then solar energy is given priority as the power supply energy for the air conditioner. At the same time, if the converted voltage does not meet the user's needs, then the mains power is used as the power supply for the air conditioner, thus ensuring the sustainability of the power supply and the stability of the operation of the air conditioner and improving the user experience. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the arrangement of the air conditioner provided by the present invention;

[0039] Figure 2 This is a flowchart illustrating the power supply method for the air conditioner provided by the present invention;

[0040] Figure 3 This is a structural schematic diagram of the power supply device for the air conditioner provided by the present invention.

[0041] Figure label:

[0042] 10. Solar energy acquisition unit; 20. Air conditioner body; 30. Sampling resistor; 40. Acquisition and judgment module; 50. First determination module; 60. Second determination module. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] The present invention will now be described in detail with reference to the accompanying drawings. The specific operation methods in the method embodiments can also be applied to the device embodiments or system embodiments. In the description of the present invention, unless otherwise stated, "at least one" includes one or more. "Multiple" refers to two or more. For example, at least one of A, B, and C includes: A existing alone, B existing alone, A and B existing simultaneously, A and C existing simultaneously, B and C existing simultaneously, and A, B, and C existing simultaneously. In the present invention, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0045] The present invention will now be described in detail with reference to specific embodiments.

[0046] In some specific embodiments of the present invention, such as Figure 1 and Figure 2 As shown, this solution provides a power supply method for an air conditioner, which includes: a solar energy collection unit 10, an air conditioner body 20, and a sampling resistor 30;

[0047] The solar energy collection unit 10 is connected to the air conditioner body 20 and is used to convert solar energy into electrical energy and supply power to the air conditioner body 20.

[0048] The sampling resistor 30 is connected to the solar energy acquisition unit 10 and is used to detect the voltage corresponding to the conversion of solar energy into electrical energy.

[0049] The methods include:

[0050] Obtain the instantaneous voltage characteristics of solar energy converted into electrical energy, and make judgments based on these instantaneous voltage characteristics;

[0051] If the instantaneous voltage characteristics are determined to meet the user's power demand, then the air conditioner body 20 will be powered by solar energy.

[0052] If the instantaneous voltage characteristics are determined to be insufficient to meet the user's power demand, then the air conditioner body 20 will be powered by the mains power.

[0053] It should be noted that due to regional factors or power supply equipment, the mains power supply in some areas is unstable. This situation often leads to frequent power outages and prolonged outages. At the same time, voltage instability during power supply results in poor power continuity for air conditioners, and the voltage instability causes significant damage to the air conditioners, seriously affecting their service life. This invention, by taking into account the characteristics of special areas, such as high temperature environment and high radiation, prioritizes solar energy as the main power source for air conditioners. This ensures continuous and stable operation of the air conditioners while avoiding the problem of damage to the air conditioners caused by frequent mains power outages.

[0054] In a possible implementation, the solar energy acquisition unit 10 is installed inside the outdoor unit of the air conditioner body 20 and connected to the circuit board inside the outdoor unit. The sampling resistor 30 is connected to the circuit board and is used to acquire the voltage on the circuit board.

[0055] In a possible implementation, solar power has a higher priority than grid power.

[0056] In a possible implementation, the aforementioned areas with unstable power supply are high-temperature areas.

[0057] In a possible implementation, the aforementioned region with unstable power supply is a region near the equator.

[0058] In some possible embodiments of the present invention, if it is determined that the instantaneous voltage characteristics meet the user's power demand, then the step of supplying power to the air conditioner body 20 via solar energy specifically includes:

[0059] Obtain the first instantaneous power supply characteristics of the mains power, and make a judgment based on the first instantaneous power supply characteristics;

[0060] If the first instantaneous power supply characteristic is determined to meet the preset power supply characteristic, then the energy storage device is charged by the mains power.

[0061] Specifically, this embodiment provides an implementation method for powering the air conditioner body 20 with solar energy. If the voltage of the solar energy converted into electrical energy meets the user's power demand, and if the mains power can guarantee the power supply, the mains power will be used to power the energy storage device to store the electrical energy supplied by the mains power, so as to ensure that the power demand of the air conditioner body 20 is met when the electrical energy converted from solar energy is insufficient or at night.

[0062] In a possible implementation, the first instantaneous power supply characteristic obtained can be the stability characteristic of the mains power supply. A stable mains power supply can ensure that the mains power can charge the energy storage device smoothly.

[0063] In a possible implementation, the first instantaneous power supply characteristic can be the continuous power supply duration characteristic of the mains power supply. Sufficient continuous power supply duration of the mains power can ensure that the mains power can stably charge the energy storage device and avoid damage to the energy storage device caused by frequent power outages.

[0064] In a possible implementation, the first instantaneous power supply characteristic obtained can be the voltage characteristic of the mains power supply. The voltage characteristic of the mains power supply can ensure that the mains power can charge the energy storage device smoothly, avoiding the problem that the energy storage device cannot be charged normally due to unstable voltage, low voltage, or other reasons.

[0065] In a possible implementation, the first instantaneous power supply characteristic obtained can be the current characteristic of the mains power supply, and the voltage characteristic of the mains power supply can ensure that the mains power supply can charge the energy storage device smoothly, avoiding the problem that the energy storage device cannot be charged normally due to unstable voltage, low voltage, or other reasons.

[0066] In possible implementations, the energy storage device may be an energy storage component installed inside the air conditioner, or it may be an energy storage component independent of the air conditioner that can supply electrical energy to the air conditioner.

[0067] In some possible embodiments of the present invention, the step of determining that the first instantaneous power supply characteristic satisfies the preset power supply characteristic specifically includes:

[0068] Extract N first instantaneous power supply feature values ​​from the first instantaneous power supply feature, where N is a positive integer greater than 1;

[0069] Obtain the interval duration feature of K adjacent pairs of first instantaneous power supply feature values, and make a judgment based on the interval duration feature, where K is a positive integer less than N;

[0070] If the number of interval duration characteristics less than the preset power supply interval meets the preset threshold, then the first instantaneous power supply characteristic meets the preset power supply characteristic.

[0071] Specifically, this embodiment provides an implementation method for determining whether the first instantaneous power supply characteristic meets the preset power supply characteristic. By acquiring the power supply interval duration, the power supply characteristics of the mains power are judged, and then it is determined whether the mains power is suitable for supplying power to the energy storage device when the solar radiation intensity meets the requirements of the air conditioner.

[0072] In a possible implementation, by judging the number of interval duration features between two adjacent first instantaneous power supply feature values, and determining that the number of interval duration features meets a preset threshold, it indicates that although there are intervals in the power supply from the mains, the number of intervals has an acceptable impact on the overall power supply. Therefore, the energy storage device can be charged by the mains power to ensure that the mains power is fully utilized when it is available.

[0073] In some possible embodiments of the present invention, the step of supplying power to the air conditioner body 20 via mains power when it is determined that the instantaneous voltage characteristics do not meet the user's power demand specifically includes:

[0074] Obtain the target voltage characteristics of the user's electricity demand, and extract the first offset feature between the instantaneous voltage characteristics and the target voltage characteristics, wherein the first offset feature represents the voltage difference between the instantaneous voltage characteristics and the target voltage characteristics;

[0075] The power supply strategy for the air conditioner body 20 is determined based on the first offset feature, and the power supply strategy is used to control the mains power supply to the air conditioner body 20.

[0076] Specifically, this embodiment provides an implementation method for supplying power to the air conditioner body 20 via mains power. By acquiring the target voltage characteristics of the user's power demand, and based on the first offset characteristics between the target voltage characteristics and the instantaneous voltage characteristics, a power supply strategy of the required amount of mains power to supply to the air conditioner body 20 is determined. Then, based on the power supply strategy, the mains power is controlled to supply power to the air conditioner body 20, ensuring that the air conditioner body 20 can work continuously and stably.

[0077] It should be noted that by determining the first offset characteristic between the instantaneous voltage characteristic after solar energy is converted into electrical energy and the target voltage characteristic, the electrical energy that needs to be supplemented by the mains power is determined based on the first offset characteristic, and the electrical energy converted from solar energy and the electrical energy sent by the mains power are used to supply power in a coordinated manner to ensure the normal operation of the air conditioner body 20.

[0078] In a possible implementation, if the instantaneous voltage characteristic after solar energy is converted into electrical energy is less than the target voltage characteristic, then it is determined that the instantaneous voltage characteristic does not meet the user's electricity demand.

[0079] In a possible implementation, the first offset feature is the voltage difference between the instantaneous voltage feature and the target voltage feature.

[0080] In some possible embodiments of the present invention, the step of determining the power supply strategy for the air conditioner body 20 based on the first offset feature specifically includes:

[0081] Acquire the second instantaneous power supply characteristics of the mains power, and make a judgment based on the second instantaneous power supply characteristics;

[0082] If the second instantaneous power supply feature satisfies the first offset feature, then a power supply strategy for supplying power to the air conditioner body 20 via mains power is generated.

[0083] If the second instantaneous power supply feature does not satisfy the first offset feature, a power supply strategy is generated that supplies power to the energy storage device through the mains power and supplies power to the air conditioner body 20 through the energy storage device.

[0084] Specifically, this embodiment provides an implementation of a power supply strategy for determining the mains power supply for the air conditioner body 20 based on a first offset feature. When the instantaneous voltage feature after solar energy is converted into electrical energy does not meet the user's needs, the mains power supply is judged. If the mains power supply meets the user's needs, the air conditioner is powered by the mains power supply. If the mains power supply does not meet the needs, the air conditioner is powered by the energy storage device, thereby ensuring the stable operation of the air conditioner and improving the user's experience in special areas.

[0085] In some possible embodiments of the present invention, the step of determining based on the second instantaneous power supply characteristic specifically includes:

[0086] Extract M second instantaneous power supply feature values ​​from the second instantaneous power supply feature, where M is a positive integer greater than 1;

[0087] Obtain the second offset feature of any two adjacent second instantaneous power supply feature values, and make a judgment based on the second offset feature, wherein the second offset feature represents the power outage frequency and / or power outage duration of the mains power.

[0088] If the second offset feature is determined to be less than the preset offset threshold, then the second instantaneous power supply feature satisfies the first offset feature; otherwise, the second instantaneous power supply feature does not satisfy the first offset feature.

[0089] Specifically, this embodiment provides an implementation method for judgment based on the second instantaneous power supply characteristic. By judging the second offset characteristic of two adjacent second instantaneous power supply characteristic values ​​of the mains power, and determining that the power outage frequency and / or power outage duration of the mains power can meet the power supply requirements of the mains power to the air conditioner, the air conditioner is powered by the mains power.

[0090] It should be noted that the second instantaneous power supply characteristic value represents the power supply time information of the mains power at the corresponding time. By taking whether the mains power can meet the condition of continuous power supply as the priority judgment, the mains power that can meet the condition of continuous power supply is determined as the priority power supply selection for the air conditioner, so as to ensure that the air conditioner can maintain its operation under high temperature conditions. For the mains power that may have unstable current and / or voltage, it can be adjusted through subsequent corresponding means to ensure the cooling effect of the air conditioner.

[0091] In some possible embodiments of the present invention, the method is applied to areas where the continuous power supply duration and / or total power supply duration of the mains power is less than or equal to the rated power supply duration.

[0092] Specifically, this embodiment provides an implementation method for a specific application scenario. The method is applied in a special area where the continuous power supply duration and / or total power supply duration is less than or equal to the rated power supply duration. The method provided by this invention can meet the needs of air conditioners for extended operation in areas where there is insufficient mains power supply. Combined with the local solar radiation conditions, it can ensure the continuous operation of air conditioners during high-temperature periods.

[0093] In some possible embodiments of the present invention, the method is applied to areas where the frequency and / or duration of mains power outages are greater than or equal to the rated power supply interval.

[0094] Specifically, this embodiment provides another implementation scenario for the method. The above method is applied in a special area, which is a region where the frequency and / or duration of power outages are greater than or equal to the rated power supply interval. The method provided by this invention can meet the needs of air conditioners for extended operation in areas where there are insufficient mains power supply. Combined with the local solar radiation conditions, it can ensure the continuous operation of air conditioners during high-temperature periods.

[0095] In some specific embodiments of the present invention, such as Figure 3 As shown, this solution provides a power supply device for an air conditioner, including: an acquisition and judgment module 40, a first determination module 50, and a second determination module 60.

[0096] The judgment module 40 is used to acquire the instantaneous voltage characteristics of solar energy converted into electrical energy, and to make judgments based on the instantaneous voltage characteristics.

[0097] The first determining module 50 is used to determine if the instantaneous voltage characteristics meet the user's power demand, and then power the air conditioner body 20 through solar energy.

[0098] The second determining module 60 is used to determine if the instantaneous voltage characteristics do not meet the user's power demand, and then supply power to the air conditioner body 20 through the mains power.

[0099] Optionally, if it is determined that the instantaneous voltage characteristics meet the user's power demand, then the step of supplying power to the air conditioner body 20 via solar energy specifically includes:

[0100] Obtain the first instantaneous power supply characteristics of the mains power, and make a judgment based on the first instantaneous power supply characteristics;

[0101] If the first instantaneous power supply characteristic is determined to meet the preset power supply characteristic, then the energy storage device is charged by the mains power.

[0102] Optionally, the step of determining that the first instantaneous power supply characteristic satisfies the preset power supply characteristic specifically includes:

[0103] Extract N first instantaneous power supply feature values ​​from the first instantaneous power supply feature, where N is a positive integer greater than 1;

[0104] Obtain the interval duration feature of K adjacent pairs of first instantaneous power supply feature values, and make a judgment based on the interval duration feature, where K is a positive integer less than N;

[0105] If the number of interval duration characteristics less than the preset power supply interval meets the preset threshold, then the first instantaneous power supply characteristic meets the preset power supply characteristic.

[0106] Optionally, the step of supplying power to the air conditioner unit 20 via mains power if it is determined that the instantaneous voltage characteristics do not meet the user's power demand specifically includes:

[0107] Obtain the target voltage characteristics of the user's electricity demand, and extract the first offset feature between the instantaneous voltage characteristics and the target voltage characteristics, wherein the first offset feature represents the voltage difference between the instantaneous voltage characteristics and the target voltage characteristics;

[0108] The power supply strategy for the air conditioner body 20 is determined based on the first offset feature, and the power supply strategy is used to control the mains power supply to the air conditioner body 20.

[0109] Optionally, the step of determining the power supply strategy for the air conditioner body 20 based on the first offset feature specifically includes:

[0110] Acquire the second instantaneous power supply characteristics of the mains power, and make a judgment based on the second instantaneous power supply characteristics;

[0111] If the second instantaneous power supply feature satisfies the first offset feature, then a power supply strategy for supplying power to the air conditioner body 20 via mains power is generated.

[0112] If the second instantaneous power supply feature does not satisfy the first offset feature, a power supply strategy is generated that supplies power to the energy storage device through the mains power and supplies power to the air conditioner body 20 through the energy storage device.

[0113] Optionally, the step of determining based on the second instantaneous power supply characteristic specifically includes:

[0114] Extract M second instantaneous power supply feature values ​​from the second instantaneous power supply feature, where M is a positive integer greater than 1;

[0115] Obtain the second offset feature of any two adjacent second instantaneous power supply feature values, and make a judgment based on the second offset feature, wherein the second offset feature represents the power outage frequency and / or power outage duration of the mains power.

[0116] If the second offset feature is determined to be less than the preset offset threshold, then the second instantaneous power supply feature satisfies the first offset feature; otherwise, the second instantaneous power supply feature does not satisfy the first offset feature.

[0117] Optionally, the method is applied to areas where the continuous power supply duration and / or total power supply duration is less than or equal to the rated power supply duration.

[0118] Optionally, the method is applied to areas where the frequency and / or duration of mains power outages are greater than or equal to the rated power supply interval.

[0119] In some specific embodiments of the present invention, this solution provides an air conditioner that, when powered, employs the above-described power supply method for an air conditioner, or the above-described power supply device for an air conditioner.

[0120] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0121] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply method for an air conditioner, characterized in that, The air conditioner includes: a solar energy collection unit, an air conditioner body, and a sampling resistor; The solar energy collection unit is connected to the air conditioner body and is used to convert solar energy into electrical energy and supply power to the air conditioner body; The sampling resistor is connected to the solar energy acquisition unit and is used to detect the voltage corresponding to the conversion of solar energy into electrical energy. The method includes: Acquire the instantaneous voltage characteristics of solar energy converted into electrical energy, and make a judgment based on the instantaneous voltage characteristics; The first instantaneous power supply characteristic of the mains power is obtained, and a judgment is made based on the first instantaneous power supply characteristic, wherein the first instantaneous power supply characteristic includes any one or a combination of the stability characteristics of the mains power supply, the continuous power supply duration characteristics of the mains power supply, the voltage characteristics of the mains power supply, and the current characteristics of the mains power supply. Extract N first instant power supply feature values ​​from the first instant power supply feature, where N is a positive integer greater than 1; obtain K interval duration features between two adjacent first instant power supply feature values, and make a judgment based on the interval duration features, where K is a positive integer less than N; if the number of interval duration features less than a preset power supply interval meets a preset threshold, then the first instant power supply feature meets the preset power supply feature, and then the air conditioner body is powered by solar energy, and the energy storage device is charged by mains power; Obtain the target voltage characteristics of the user's electricity demand, and extract the first offset feature between the instantaneous voltage characteristics and the target voltage characteristics, wherein the first offset feature represents the voltage difference between the instantaneous voltage characteristics and the target voltage characteristics; Obtain the second instantaneous power supply characteristic of the mains power, and extract M second instantaneous power supply characteristic values ​​of the second instantaneous power supply characteristic, where M is a positive integer greater than 1; Obtain the second offset feature of any two adjacent second instant power supply feature values, and make a judgment based on the second offset feature, wherein the second offset feature represents the power outage frequency and / or power outage duration of the mains power; if the second offset feature is less than a preset offset threshold, then the second instant power supply feature satisfies the first offset feature; otherwise, the second instant power supply feature does not satisfy the first offset feature. If the second instantaneous power supply feature is determined to satisfy the first offset feature, a power supply strategy for supplying power to the air conditioner body via mains power is generated. If it is determined that the second instantaneous power supply feature does not satisfy the first offset feature, a power supply strategy is generated that supplies power to the energy storage device through the mains power and supplies power to the air conditioner body through the energy storage device, and the mains power is controlled to supply power to the air conditioner body according to the power supply strategy.

2. The power supply method for an air conditioner according to claim 1, characterized in that, The method is applicable to areas where the continuous power supply duration and / or total power supply duration of the mains power is less than or equal to the rated power supply duration.

3. The power supply method for an air conditioner according to claim 1, characterized in that, The method is applicable to areas where the frequency and / or duration of mains power outages are greater than or equal to the rated power supply interval.

4. A power supply device for an air conditioner, characterized in that, The air conditioner includes: a solar energy collection unit, an air conditioner body, and a sampling resistor; The solar energy collection unit is connected to the air conditioner body and is used to convert solar energy into electrical energy and supply power to the air conditioner body; The sampling resistor is connected to the solar energy acquisition unit and is used to detect the voltage corresponding to the conversion of solar energy into electrical energy. The device includes: an acquisition and judgment module, a first determination module, and a second determination module; The acquisition and judgment module is used to acquire the instantaneous voltage characteristics of solar energy converted into electrical energy, and to make judgments based on the instantaneous voltage characteristics. The first determining module is used to acquire a first instantaneous power supply characteristic of the mains power supply and make a judgment based on the first instantaneous power supply characteristic. The first instantaneous power supply characteristic includes any one or a combination of several of the following: stability characteristic of mains power supply, continuous power supply duration characteristic of mains power supply, voltage characteristic of mains power supply, and current characteristic of mains power supply. N first instantaneous power supply characteristic values ​​are extracted, where N is a positive integer greater than 1. K interval duration characteristics between two adjacent first instantaneous power supply characteristic values ​​are acquired, and a judgment is made based on the interval duration characteristics, where K is a positive integer less than N. If the number of interval duration characteristics less than a preset power supply interval meets a preset threshold, then the first instantaneous power supply characteristic meets the preset power supply characteristic. In this case, solar energy supplies power to the air conditioner body, and mains power charges the energy storage device. The second determining module is used to obtain the target voltage characteristics of the user's electricity demand, extract the first offset characteristics of the instantaneous voltage characteristics and the target voltage characteristics, wherein the first offset characteristics represent the voltage difference between the instantaneous voltage characteristics and the target voltage characteristics; obtain the second instantaneous power supply characteristics of the mains power, and extract M second instantaneous power supply characteristic values ​​of the second instantaneous power supply characteristics, wherein M is a positive integer greater than 1; obtain the second offset characteristics of any two adjacent second instantaneous power supply characteristic values, and make a judgment based on the second offset characteristics, wherein the second offset characteristics represent the power outage frequency and / or power outage duration of the mains power; determine that the second offset characteristics are less than a preset offset threshold, then the second instantaneous power supply characteristics satisfy the first offset characteristics, otherwise the second instantaneous power supply characteristics do not satisfy the first offset characteristics; determine that the second instantaneous power supply characteristics satisfy the first offset characteristics, then generate a power supply strategy to supply power to the air conditioner body through the mains power; determine that the second instantaneous power supply characteristics do not satisfy the first offset characteristics, then generate a power supply strategy to supply power to the energy storage device through the mains power, and supply power to the air conditioner body through the energy storage device, and control the mains power to supply power to the air conditioner body according to the power supply strategy.

5. An air conditioner, characterized in that, When supplying power, the power supply method of the air conditioner as described in any one of claims 1 to 3, or the power supply device of the air conditioner as described in claim 4, shall be used.

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