WO2018214764A1

WO2018214764A1 - Adaptive control device for power source of air conditioner, and air conditioner

Info

Publication number: WO2018214764A1
Application number: PCT/CN2018/086642
Authority: WO
Inventors: 李洪超; 郭亮; 卢保东; 张静; 王月亮; 王明强
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-05-22
Filing date: 2018-05-14
Publication date: 2018-11-29
Also published as: CN107166648B; CN107166648A

Abstract

An adaptive control device for a power source of an air conditioner comprises a mains power source unit (1), a battery unit (2), a switching unit (5), and a first processor (4). A first input end (I1) of the switching unit (5) is used for collecting a mains power source signal, and a second input end (I2) of the switching unit (5) is used for collecting a battery power supply signal. An output end (P0) of the switching unit (5) is used for outputting the mains power source signal or the battery power supply signal to a power source circuit of the air conditioner (6), and a control end (C0) of the switching unit (6) is used for receiving a switching action control signal. The first processor (4) is used for determining whether the mains power source signal falls within a set threshold range, so as to switch the switching unit (5) to be in a first working state or a second working state. Also disclosed is an air conditioner using the adaptive control device for a power source of the air conditioner.

Description

Air conditioner power supply adaptive control device and air conditioner

Technical field

The present invention relates to the field of air conditioning technology, and in particular, to an air conditioner power supply adaptive control device, and an air conditioner using the air conditioner power supply adaptive control device.

Background technique

In some countries and regions with relatively backward economies, such as Ethiopia in Africa and Pakistan in Asia, the coverage rate of power users is only 20% to 40%, the power supply quality is also very poor, the fluctuation of power supply voltage and frequency is large, and the waveform is distorted. Serious, while the power supply may be interrupted at any time. Ordinary household appliances, such as lighting equipment, are generally powered by batteries.

technical problem

However, for hospitals, bank clearing centers, civil aviation, meteorological and other departments, it is also necessary to use air conditioners to maintain normal work. Unstable power supply has a serious impact on the use of air conditioners.

Technical solution

The invention provides an air conditioner power supply adaptive control device to overcome the influence of an unstable power supply on the use of an air conditioner.

The invention provides an air conditioner power supply adaptive control device, comprising:

a mains power supply unit, wherein the mains power supply unit is configured to provide a mains power signal;

a battery unit for providing a battery powered signal;

a switching unit, wherein one input end of the switching unit is configured to collect the mains power signal, a second input end is used to collect the battery power supply signal, and an output end of the switching unit is configured to output the mains power signal Or a battery power supply signal to the air conditioner power circuit, the control end of the switching unit is configured to receive a switching action control signal;

a first processor, the first processor determines whether the mains power signal belongs to a set threshold interval, and if the mains power signal belongs to a set threshold interval, the first processor generates and outputs a first Switching a signal to the control end of the switching unit, maintaining the switching unit in the first working state, outputting the mains power signal to the air conditioner power circuit at the output end of the switching unit; if the mains power source If the signal does not belong to the set threshold interval, the first processor generates and outputs a second switching signal to the control end of the switching unit, and the switching unit switches to the second working state, and the output end of the switching unit passes The inverter outputs the battery power signal to the air conditioner power circuit.

Further, the second processor further includes: when the switching unit is maintained in the first working state, the second processor receives a room temperature detection signal generated by the first temperature sensor, and according to the room temperature detection signal and Setting a difference of the temperature to generate a real-time control current of the air conditioner and controlling the air conditioner to operate according to the real-time control current; when the switching unit switches to the second working state, the second processor generates an adaptive control current, The adaptive control current is less than the real-time control current.

Further, when the switching unit is switched to the second working state, the first processor acquires a relationship between the actual load and the rated load corresponding to the real-time control current, if the actual load is greater than the rated load, but If the first threshold range is not exceeded, the first processor drives the alarm unit to generate an alarm signal; the second processor collects the alarm signal, and if the second processor collects the alarm signal, then controls The air conditioner operates according to the first adaptive current; the first processor detects a relationship between the actual load and the rated load corresponding to the first adaptive current, if the actual load is again greater than the rated load, but does not exceed a first threshold range, the first processor again drives the alarm unit to generate an alarm signal, and if the second processor collects the alarm signal again, the control air conditioner operates according to the second adaptive current, the real-time The control current, the first adaptive current, and the second adaptive current are gradually reduced by the same magnitude.

Further, the second processing unit generates a plurality of adaptive currents according to the same amplitude until the second processor no longer collects the alarm signal.

Further, the device further includes a switching device and an automatic protection device, wherein the switching device outputs an activation signal to the self-protecting device and the second processor, and the second processor controls the air conditioner to maintain a shutdown state, the first processing And generating a self-protection signal to the control end of the switching unit, the output end of the switching unit outputs a battery power supply signal to the air conditioner power supply loop and maintains a first period; when the first period ends, the first The processor generates and outputs a first switching signal to the control end of the switching unit, the switching unit is in a first working state, and the second processor controls the air conditioner to start working.

Further, the first processor further outputs an inverter control signal to a control end of the inverter, and when the switching unit is maintained in the first working state, the first processor controls the inverter to stop working.

Further, the method further includes a charging circuit, the first processing unit controls the charging circuit to charge the battery pack when the switching unit is maintained in the first working state; and when the switching unit is maintained in the second working state, The first processing unit controls the charging circuit to stop charging the battery pack.

Further, a voltage stabilizing circuit is further included, and an input end of the voltage stabilizing circuit is connected to the mains power supply unit, and an output end of the voltage stabilizing circuit is connected to the first input end of the switching unit.

Preferably, the switching unit comprises any one of the following:

Two way switch

a relay disposed outside the air conditioner, wherein the normally open contact of the relay collects the mains power signal, and the normally closed contact of the relay collects a battery power supply signal;

Or a relay disposed in the air conditioner housing, the normally open contact of the relay collecting the mains power signal, and the normally closed contact of the relay collecting a battery power signal.

The air conditioner power supply adaptive control device disclosed by the invention does not require multiple manual operations by the user during the whole operation process, and can form an optimization scheme for facilitating the operation of the air conditioner, fully utilize the capacity of the battery pack, and has a high degree of automation and users. Experience the good things.

At the same time, an air conditioner is disclosed, which adopts an air conditioner power supply adaptive control device, and the air conditioner power supply adaptive device includes a mains power supply unit, and the mains power supply unit is configured to provide a mains power supply signal;

a battery unit for providing a battery powered signal;

a first processor, the first processor determines whether the mains power signal belongs to a set threshold interval, and if the mains power signal belongs to a set threshold interval, the first processor generates and outputs a first Switching a signal to the control end of the switching unit, maintaining the switching unit in the first working state, outputting the mains power signal to the air conditioner power circuit at the output end of the switching unit; if the mains power source If the signal does not belong to the set threshold interval, the first processor generates and outputs a second switching signal to the control end of the switching unit, and the switching unit switches to the second working state, and the output end of the switching unit passes The inverter outputs the battery power signal to the air conditioner power circuit

Beneficial effect

The air conditioner disclosed by the invention can automatically form a preferred power distribution scheme when the mains power source is abnormal, and the air conditioner can be kept without stopping and extended to a sufficient running time.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic block diagram showing the structure of a first embodiment of an air conditioner power supply adaptive control device according to the present invention;

2 is a schematic structural diagram of a first circuit of a switching unit in the power supply adaptive control device of the air conditioner shown in FIG. 1;

3 is a schematic diagram showing a second circuit structure of a switching unit in the air conditioner power supply adaptive control device shown in FIG. 1;

4 is a schematic diagram showing a third circuit structure of a switching unit in the air conditioner power supply adaptive control device shown in FIG. 1;

5 is a schematic structural block diagram of a second embodiment of an air conditioner power supply adaptive control apparatus according to the present invention;

FIG. 6 is a schematic structural block diagram of a third embodiment of an air conditioner power supply adaptive control apparatus according to the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , a schematic block diagram of a structure disclosed in a first embodiment of an air conditioner power supply adaptive control device according to the present invention is shown. As shown, the air conditioner power supply adaptive control device disclosed by the present invention includes a mains power supply unit 1, a battery unit 2, a switching unit 5, and a first processor 4. The air conditioner power supply adaptive control device has a mains power supply unit 1. In actual use, the mains power supply unit 1 is connected to a commercial power supply having a nominal value of 220V to provide a mains power supply signal. The battery unit 2 is connected to a battery for providing a battery power signal. The capacity of the battery is sufficient to allow the air conditioner to operate for hours. A switch button is arranged on the air conditioner power adapting device, the user operates the switch button, the air conditioner power adapting device is in a working state, and the commercial power source unit 1 starts to provide the mains power signal. The first processor 4 receives an input signal, that is, a mains power signal provided by the mains power supply unit 1, and the mains power is input to the first processor 4 in the form of a detection signal, and the first processor 4 performs the mains power signal. determination.

In the air conditioner power supply adaptive control device, a switching unit 5 is further provided. The switching unit 5 has a first input terminal I1, a second input terminal I2, a control terminal C0 and an output terminal P0. The first input terminal I1 of the switching unit 5 is used. The second input terminal I2 of the switching unit 5 is configured to collect the battery power supply signal, and the output terminal P0 of the switching unit 5 is used to output the mains power signal or the battery power supply signal to the power circuit of the air conditioner 6. The control terminal C0 of the switching unit 5 receives an output signal of the first processor 4. When the adaptive control device is in the running state, the switching unit 5 is in the first working state, and the air conditioner power circuit receives the mains power signal. From the hardware, the switching unit 5 can be a two-way switching switch, as shown in Figure 2, or a relay. For the relay, there are two settings, as shown in Figure 3, the first one is set on the outside of the air conditioner 6, the normally open contact K1 of the relay is connected to the mains power supply unit 1 at one end, and the air conditioner 6 is connected to the other end. The power circuit, the normally closed contact K2 of the relay is connected to the battery unit 2 at one end, and the power circuit of the air conditioner 6 is connected to the other end. As shown in FIG. 4, the second type is disposed in the casing of the air conditioner 6, the normally open contact K1 of the relay is connected to the mains power supply unit 1 at one end, and the power supply circuit of the air conditioner 6 is connected to the other end, and the normally closed contact of the relay One end of K2 is connected to the battery unit 2, and the other end is connected to the power circuit of the air conditioner 6.

After the air conditioner power adaptive control device is powered on, the first processor 4 determines whether the mains power signal belongs to the set threshold interval, and further determines whether the mains power signal is normal, which is sufficient for the use of the air conditioner. For the inverter air conditioner, the first processor 4 stores a set threshold interval of at least two parameters, the first parameter being the mains power supply voltage and the other parameter being the mains power frequency. The mains supply voltage is set to a threshold range of 160V to 255V, and the mains supply frequency is 48 to 58Hz. If used in a fixed-frequency air conditioner, the set threshold interval range is smaller than the set threshold range corresponding to the inverter air conditioner. When the air conditioner power adaptive device is in the working state, the first processor 4 immediately samples the commercial power signal and determines whether the power voltage and the power frequency of the commercial power source belong to a set threshold interval. The sampling period can be set for a fixed period of time. If the mains power signal belongs to the set threshold interval, the mains power signal is normal, the first processor 4 generates and outputs the first switching signal to the control terminal C0 of the switching unit 5, and maintains the switching unit 5 in the first work. The state remains unchanged. Taking the relay as an example, the control signal is generated to control the normally open contact K1 to be closed, the normally closed contact K2 is disconnected, and the output terminal P0 of the switching unit 5 outputs the mains power signal to the air conditioner power circuit, and the air conditioner The device is running. If the mains power signal does not belong to the set threshold interval, the first processor 4 generates and outputs a second switching signal to the control terminal C0 of the switching unit 5, and the switching unit 5 switches to the second operating state, also taking a relay as an example. Then, a control signal is generated to control the normally open contact K1 to be opened, the normally open contact K2 is closed, and the output terminal P0 of the switching unit 5 outputs a battery power supply signal to the air conditioner 6. When the sampling period is short and the amount of data is large, the first processor 4 may further be provided with a sub-processor 41, and the sub-processor 41 determines whether the mains power signal is normal, the sub-processor 41 and the first processing. The other storage and processing modules of the device 4 can communicate through the serial communication module.

Referring to FIG. 5, if the sampling period is small, the power source selected by the switching unit 5 is theoretically more reasonable for the air conditioner, but for the area where the power facilities are backward, since the city electrode is unstable, the first The mains power signal that is immediately sampled by the processor 4 may appear to be frequently changed within a set threshold interval and outside the set threshold interval in consecutive sampling periods, which may increase the probability of spike interference in the air conditioner power supply loop. Further, the risk of equipment burning is further increased. Therefore, the utility power supply can also be connected to the first input terminal I1 of the switching unit 5 through the inverter 3, and the inverter 3 can provide a better and more stable power supply.

In the entire control process of the air conditioner power supply adaptive control device disclosed in the above two embodiments, the user can automatically select the air conditioner by the determination of the first processor 4 and the different states of the switching unit 5 in only one operation. The higher quality power supply signal makes the operation of the air conditioner more stable and reliable, reducing the risk of equipment damage.

Referring to Fig. 6, the circuit load of the air conditioner 6 itself will change continuously with the working condition in the area with good power supply quality and ordinary lighting equipment, and will change continuously with the load change of the air-conditioned room. Complex, for power adaptive control devices, is a randomly varying load. Therefore, an air conditioner power supply adaptive control device is required to provide a reasonable power distribution scheme while avoiding non-linear loads from polluting an already fragile power grid. Therefore, a second processor 7 is also provided in the air conditioner power supply adaptive control device. When the switching unit 5 is maintained in the first working state, the second processor 7 receives the room temperature detection signal generated by the first temperature sensor 9 disposed in the air-conditioned room, preferably disposed on the air-conditioning return air port, and according to the room temperature detection signal and the setting The difference between the fixed temperatures generates the real-time control current of the air conditioner 6 and controls the air conditioner 6 to operate according to the real-time control current under the condition that the commercial power supply is supplied, or under the condition that the commercial power supply of the inverter 3 is supplied. The real-time control current is mainly used as an analog input variable to control the real-time speed of the inverter 6 compressor. Further, it is also possible to convert the corresponding electric signal into an indoor fan, an outdoor fan, and a display device that control the air conditioner 6 as an input variable. When the switching unit 5 is switched to the second operating state, it is necessary to consider the terminal voltage of the battery which is continuously falling, and the situation of overload, to prevent the air conditioner 6 from being stopped due to overload, and therefore, the second processor 7 generates an adaptive control current. The adaptive control current is smaller than the real-time control current, and the compressor of the air conditioner 6 is operated according to the adaptive control current, and correspondingly, the adaptive control current is used as an input variable to control the indoor fan and the outdoor fan of the air conditioner 6 and The electrical signal of the display device also decreases in proportion. Through the air conditioner power supply adaptive control device, when the switching unit 5 is switched to the second working state, the air conditioner 6 only adopts the adaptive control current as the input control variable, and is no longer controlled according to the indoor load, thereby obtaining an automatic optimization. The control scheme enables the air conditioner 6 to operate for a longer time under the power supply of the battery to meet the use requirement of the air conditioner 6 when the power signal deviates from the set threshold.

Further, in order to avoid the situation of overload shutdown, it is necessary to determine the magnitude of the adaptive control current. When the switching unit 5 switches to the second working state, the first processor 4 acquires and stores the real-time control current corresponding to the switching moment. The relationship between actual load and rated load. Since the main load comes from the compressor during operation, the first processor 4 acquires the actual operating load of the compressor. The actual operational load is obtained by the second processor 7.

The specific process of obtaining the actual running load is that when the switching unit 5 is maintained in the first working state, and the second processor 7 controls the air conditioner 6 to operate normally, the second processor 7 samples the driving voltage of the compressor according to a certain period and The drive current, the drive current is less than the real-time control current and is substantially proportional to the real-time control current. Further calculating the effective values of the driving voltage and the driving current, calculating the power value of the compressor by using the effective values of the driving voltage and the driving current, and calculating the air conditioner 6 by using the power value of the compressor, or the compressor power value and the correction value of other equipment. The actual load. The correction value is the average number of actual powers of the indoor fan, the outdoor fan, and the display device during normal operation, obtained through the experiment and the operation of the air conditioner 6, and stored in the second processor 7 as an empirical value. The second processor 7 outputs the calculated actual load of the air conditioner 6 to the first processor 4. The first processor 4 stores a rated load corresponding to the battery terminal voltage. If the actual load obtained is greater than the rated load and exceeds the first threshold range, the first threshold range is usually 110% of the rated load, and the protection device is Purpose, the inverter 3 receives the control signal of the first processor 4 to stop, and the air conditioner 6 no longer works, which causes the user's experience to drop, and requires all the devices to restart, wasting the battery pack's power. When selecting a battery according to the rated power of the air conditioner 6, it is usually necessary to consider the matching relationship between the two, and the actual load from the hardware is prevented from exceeding 110% of the rated load when switching instantaneously. However, if the amplitude exceeds the difference of the overload shutdown, the load will increase, the working life will decrease, and the shutdown may occur due to the instantaneous over-rated load as the battery terminal voltage decreases. Therefore, it is necessary to avoid this situation. If the actual load obtained is greater than the rated load and is less than the first threshold range, preferably when the actual load is 105% of the rated load, the first processor 4 outputs a control signal to the alarm unit 8. The output terminal P0 of the alarm unit 8 is connected to the alarm device, including but not limited to a buzzer and a warning light. The other circuit is connected to the second processor 7. The alarm device is for prompting the user to continue to use according to the current state of use, which will cause irreversible damage to the air conditioner power supply adaptive control device and the air conditioner 6. At the same time, the second processor 7 collects an alarm signal. If the second processor 7 collects an alarm signal, the air conditioner 6 is controlled to operate in accordance with the first adaptive current. The second processor 7 collects the actual load when operating according to the first adaptive current, and transmits it to the first processor 4, and the first processor 4 compares the actual load with the rated load, if the actual load is again greater than the rated load and less than The first threshold range, in terms of distance, may be reduced to 102% of the rated load, and the first processor 4 drives the alarm unit 8 to generate an alarm signal again. If the second processor 7 collects an alarm signal again, the air conditioner 6 is controlled to operate in accordance with the second adaptive current. The current is controlled in real time, and the first adaptive current and the second adaptive current are gradually reduced by the same amplitude. The amplitude is preferably 1A. The first processing unit and the second processing unit maintain the above control process until the second processor 7 no longer collects an alarm signal, maintaining the air conditioner 6 operating in accordance with the corresponding adaptive current. The serial communication and the wireless communication may be adopted between the first processing unit and the second processing unit, and specific communication protocols are not described herein again.

For the unstable area of the power grid, the power adaptive control device needs to be started frequently. In order to reduce the failure rate of the device, the power adaptive control device further includes the switch device 10 and the self-protection device 11, and the output terminal P0 of the switch device 10 is connected and protected. The device 11 and the second processor 7. When the user presses the button, the switching device 10 outputs a power-on signal to the self-protecting device 11 and the second processor 7, and the second processor 7 outputs a disable signal to control the air conditioner 6 to maintain the stop state, and the first processor 4 generates and outputs. The self-protection signal to the control terminal C0 of the switching unit 5 causes the output terminal P0 of the switching unit 5 to output a battery power supply signal to the air conditioner 6 power supply circuit and maintain the first period. The first processor 4 detects the battery power supply signal and compares the battery power supply signal with a set threshold interval. If the parameters of the battery power supply signal satisfy the set threshold interval in the first cycle, the first processor 4 generates and outputs the first switch. The signal is to the control terminal C0 of the switching unit 5, the switching unit 5 is in the first operational state, and the second processor 7 controls the air conditioner 6 to start operating in the normal mode. With the self-protection device 11, the state of the battery and the inverter 3 can be obtained before the operation of the air conditioner 6, and if there is a failure of the battery and the inverter 3, the air conditioner 6 is prohibited from being activated, and the power supply adaptive control device and the air conditioner are respectively 6 form protection.

If the quality of the commercial power supply is not high, in addition to inputting the commercial power supply signal to the inverter 3 to further control the air conditioner 6, another alternative is. When the output terminal P0 of the switching unit 5 outputs the mains power signal to the air conditioner power supply circuit. The first processor 4 outputs an inverter 3 control signal to control the inverter 3 to be in an automatic shutdown state, and the mains power supply filter voltage regulator circuit 13 outputs the mains power signal to the first input terminal I1, and passes through the switching unit 5 The output terminal P0 outputs a filtered and regulated, high-quality mains power signal to the air conditioner power circuit, which makes the operation of the air conditioner 6 more stable.

In the air conditioner power supply adaptive control device, a charging circuit 12 is further provided, and when the switching unit 5 is maintained in the first operational state, the first processing unit controls the charging circuit 12 to charge the battery pack. When the switching unit 5 is maintained in the second operational state, the first processing unit controls the charging circuit 12 to stop charging the battery pack to ensure that the power in the battery is supplied to the operation of the air conditioner 6.

The present invention also provides an air conditioner using the above-described air conditioner power supply adaptive control device. The structure of the air conditioner power supply adaptive control device is specifically described and illustrated in the above embodiments and the drawings, and details are not described herein. The same technical effect can be achieved by the air conditioner using the above air conditioner power supply adaptive control device.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

An air conditioner power supply adaptive control device, comprising:

a mains power supply unit, wherein the mains power supply unit is configured to provide a mains power signal;

a battery unit for providing a battery powered signal;

a switching unit, wherein one input end of the switching unit is configured to collect the mains power signal, a second input end is used to collect the battery power supply signal, and an output end of the switching unit is configured to output the mains power signal Or a battery power supply signal to the air conditioner power circuit, the control end of the switching unit is configured to receive a switching action control signal;

a first processor, the first processor determines whether the mains power signal belongs to a set threshold interval, and if the mains power signal belongs to a set threshold interval, the first processor generates and outputs a first Switching a signal to the control end of the switching unit, maintaining the switching unit in the first working state, outputting the mains power signal to the air conditioner power circuit at the output end of the switching unit; if the mains power source If the signal does not belong to the set threshold interval, the first processor generates and outputs a second switching signal to the control end of the switching unit, and the switching unit switches to the second working state, and the output end of the switching unit passes The inverter outputs the battery power signal to the air conditioner power circuit.
The air conditioner power supply adaptive control apparatus according to claim 1, further comprising a second processor, wherein said second processor receives the first when said switching unit is maintained in said first operational state a room temperature detection signal generated by the temperature sensor, and generating a real-time control current of the air conditioner according to the difference between the room temperature detection signal and the set temperature and controlling the air conditioner to operate according to the real-time control current; when the switching unit switches to the second operation In the state, the second processor generates an adaptive control current, the adaptive control current being less than the real-time control current.
The air conditioner power supply adaptive control apparatus according to claim 2, wherein the first processor acquires an actual load and a rating corresponding to the real-time control current when the switching unit switches to a second operating state a relationship between the loads, if the actual load is greater than the rated load, but does not exceed the first threshold range, the first processor drives the alarm unit to generate an alarm signal; the second processor collects the alarm signal, And if the second processor collects the alarm signal, controlling the air conditioner to operate according to the first adaptive current; the first processor detects a relationship between the actual load and the rated load corresponding to the first adaptive current Relationship, if the actual load is again greater than the rated load, but does not exceed the first threshold range, the first processor again drives the alarm unit to generate an alarm signal, if the second processor collects the alarm signal again And controlling the air conditioner to operate according to the second adaptive current, the real-time control current, the first adaptive current, and the second adaptive current Gradually decrease according to the same amplitude.
The air conditioner power supply adaptive control apparatus according to claim 3, wherein the second processing unit generates a plurality of adaptive currents according to the same magnitude until the second processor no longer collects the alarm signal.
The air conditioner power supply adaptive control device according to claim 4, further comprising a switching device and a self-protecting device, wherein the switching device outputs a power-on signal to the self-protecting device and the second processor, The second processor controls the air conditioner to maintain a stop state, the first processor generates and outputs a self-protection signal to the control end of the switching unit, and the output end of the switching unit outputs a battery power supply signal to the air conditioner power supply circuit and maintains a first period; when the first period ends, the first processor generates and outputs a first switching signal to a control end of the switching unit, the switching unit is in a first working state, and the second processor controls the air conditioner The device starts working.
The air conditioner power supply adaptive control apparatus according to claim 5, wherein the first processor further outputs an inverter control signal to a control end of the inverter, when the switching unit is maintained in the first operation In the state, the first processor controls the inverter to stop working.
The air conditioner power supply adaptive control apparatus according to claim 6, further comprising a charging circuit, wherein said first processing unit controls said charging circuit to a battery when said switching unit is maintained in a first operating state Group charging; the first processing unit controls the charging circuit to stop charging the battery pack when the switching unit is maintained in the second operating state.
The air conditioner power supply adaptive control device according to claim 7, further comprising a voltage stabilizing circuit, wherein an input end of the voltage stabilizing circuit is connected to the mains power supply unit, and an output end of the voltage stabilizing circuit is connected The first input of the switching unit.
The air conditioner power supply adaptive control apparatus according to any one of claims 1 to 8, wherein the switching unit comprises any one of the following:

Two way switch

a relay disposed outside the air conditioner, wherein the normally open contact of the relay collects the mains power signal, and the normally closed contact of the relay collects a battery power supply signal;

Or a relay disposed in the air conditioner housing, the normally open contact of the relay collecting the mains power signal, and the normally closed contact of the relay collecting a battery power signal.
An air conditioner comprising the air conditioner power supply adaptive control device according to any one of claims 1 to 9.