Device discharge control device, air conditioning unit and control method thereof

Abstract

The application discloses a device discharge control device, an air conditioning unit and a control method thereof, wherein the device discharge control device comprises: a motor discharge circuit composed of a motor and an energy storage element; and a controller connected with the motor and used for controlling the motor to operate to release the electric energy of the energy storage element through the operation of the motor after receiving a shutdown signal of the device. The application solves the problem that the mainboard is still electrified after the device is shut down in the prior art, and the safety hidden danger is eliminated, the residual electricity is unloaded as soon as possible, the safety of the user is ensured, and the safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and in particular to a device discharge control device, an air conditioning unit and a control method thereof. BACKGROUND

[0002] Due to the rapid development of condensing units, many high-power refrigeration equipment are born today. The mainboard of the refrigeration equipment is equipped with a large capacitor for energy storage and power needs of the system. At the same time, safety problems are increasingly valued. Due to the existence of large capacitors, the mainboard is still at high voltage after the unit is turned off, and a long time is needed for discharge to reduce the voltage to a safe range. If some components are touched during this period, it will bring great safety hazards to experimenters and users. Therefore, how to solve the mainboard discharge problem and discharge as quickly as possible can meet the safety needs of users.

[0003] In view of the problem that the mainboard of the device is still electrified after the device is turned off in the related art, an effective solution has not been proposed. SUMMARY

[0004] The present application provides a device discharge control device, an air conditioning unit and a control method thereof, to at least solve the problem that the mainboard of the device is still electrified after the device is turned off in the prior art.

[0005] To solve the above technical problems, according to an aspect of an embodiment of the present application, a device discharge control device is provided, the device comprising a motor and an energy storage element arranged on a mainboard; the device discharge control device comprising:

[0006] The motor and the energy storage element form a motor discharge circuit;

[0007] A controller, connected with the motor, is used to control the motor to operate to release the electric energy of the energy storage element after receiving a shutdown signal of the device.

[0008] Further, the motor at least comprises a first motor and a second motor; the device discharge control device further comprises:

[0009] A voltage detector, connected with a bus voltage of the mainboard, is used to detect the bus voltage of the mainboard;

[0010] The controller is further connected with the voltage detector, and is used to control the first motor and the second motor to operate to release the electric energy of the energy storage element when the bus voltage is greater than a first preset voltage value after receiving the shutdown signal of the device, and control the first motor or the second motor to operate to release the electric energy of the energy storage element when the bus voltage is not greater than the first preset voltage value.

[0011] Further, it further comprises:

[0012] a resistance discharging circuit composed of the energy storage element and a discharge resistor;

[0013] a switch assembly arranged on the resistance discharging circuit, for controlling the on-off of the resistance discharging circuit;

[0014] the controller is further connected with the switch assembly, for controlling the switching of the switch assembly.

[0015] Further, the controller is further configured to control the switch assembly to be closed to release the electric energy of the energy storage element through the resistance discharging circuit when the bus voltage is less than a second preset voltage value, wherein the second preset voltage value is less than the first preset voltage value.

[0016] Further, the motor comprises a power control module, the controller is connected with the motor through the power control module, and the controller controls the charging device of the mainboard to be disconnected and controls the power control module to keep outputting to control the motor to operate after receiving the shutdown signal of the device.

[0017] Further, the power control module and the controller are powered by the energy storage element after receiving the shutdown signal of the device.

[0018] Further, when the first motor and / or the second motor operates, the controller is further configured to: control the rotating speed of the first motor and / or the second motor according to the bus voltage, or control the first motor and / or the second motor to operate at a preset fixed rotating speed; wherein the preset fixed rotating speed at least comprises a first rotating speed before receiving the shutdown signal and a second rotating speed less than the first rotating speed.

[0019] Further, the device discharge control device further comprises:

[0020] a warning light connected with the energy storage element, for indicating the electrification condition of the energy storage element, wherein the more the electric quantity of the energy storage element is, the higher the brightness of the warning light is.

[0021] According to another aspect of the embodiment of the present application, there is provided an air conditioning unit, comprising the device discharge control device as described above, and the motor of the air conditioning unit comprises: a fan motor and a compressor motor.

[0022] According to another aspect of the embodiment of the present application, there is provided an air conditioning unit control method, applied to the air conditioning unit as described above, and the method comprises:

[0023] detecting the bus voltage of the mainboard after receiving the shutdown signal of the air conditioning unit;

[0024] controlling the motor to operate according to the bus voltage to release the electric energy of the energy storage element through the operation of the motor.

[0025] Further, the controlling the motor to operate according to the bus voltage comprises:

[0026] determining whether the bus voltage is greater than a first preset voltage value;

[0027] when the bus voltage is greater than the first preset voltage value, controlling the first motor and the second motor to operate, and releasing the electric energy of the energy storage element through the operation of the first motor and the second motor;

[0028] when the bus voltage is not greater than the first preset voltage value, controlling the first motor or the second motor to operate, and releasing the electric energy of the energy storage element through the operation of the first motor or the second motor.

[0029] Further, after controlling the motor to operate according to the bus voltage, the method further comprises:

[0030] re-detecting the bus voltage, and determining whether the bus voltage is less than a second preset voltage value; wherein the second preset voltage value is less than the first preset voltage value;

[0031] when the bus voltage is less than the second preset voltage value, controlling the switch assembly to close, and releasing the electric energy of the energy storage element through the electric resistance discharge circuit;

[0032] otherwise, continuing to control the motor to operate.

[0033] Further, controlling the motor to operate according to the bus voltage further comprises:

[0034] controlling the rotating speed of the motor according to the bus voltage, or controlling the motor to operate at a preset fixed rotating speed; wherein the preset fixed rotating speed at least comprises a first rotating speed before receiving the shutdown signal and a second rotating speed less than the first rotating speed.

[0035] According to still another aspect of the embodiment of the present application, there is provided a storage medium containing computer executable instructions for executing the air conditioning unit control method as described above when executed by a computer processor.

[0036] In the present application, there is provided a device discharge control scheme, which is provided with a motor discharge circuit for discharging the energy storage element through the motor, and is further provided with a controller. After receiving the shutdown signal of the device, the controller controls the motor to operate, so as to release the electric energy of the energy storage element through the operation of the motor. Since the operation of the motor can quickly consume the electric energy of the energy storage element, the problem that the mainboard is still electrified after the shutdown of the device and the safety hazard are effectively solved. Moreover, the operation of the motor can quickly discharge, which is more conducive to protecting the safety of the user, avoiding electric shock, and thus improving the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a schematic structural diagram of an optional device discharge control device according to the embodiment of the present application;

[0038] Figure 2 is an alternative flowchart of the air conditioning unit control method according to an embodiment of the present application;

[0039] Figure 3 is another alternative flowchart of the air conditioning unit control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the present application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those ordinarily skilled in the art without creative effort belong to the scope of the present application.

[0041] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0042] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0043] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe controllers, these controllers should not be limited to these terms. These terms are only used to distinguish the controllers connected to different devices. For example, the first controller can also be referred to as the second controller without departing from the scope of the embodiments of the present application, and similarly, the second controller can also be referred to as the first controller.

[0044] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted as "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".

[0045] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0046] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0047] Example 1

[0048] In a preferred embodiment 1 of the present invention, a device discharge control device is provided, specifically... Figure 1 This diagram illustrates an optional structure of the discharge control device for the equipment, such as... Figure 1 As shown, the equipment includes motors M1 and M2. Figure 1 The diagram illustrates a scenario with two motors connected in parallel. This also applies to devices with multiple motors. In addition to the motors, the device includes energy storage components mounted on the motherboard. These energy storage components typically utilize large-capacity capacitors, such as... Figure 1 The C1 shown can, of course, be any other energy storage device.

[0049] The discharge control device of the equipment includes:

[0050] The motor discharge circuit consists of the motor and energy storage components;

[0051] The controller, connected to the motor, is used to control the motor to run after receiving a shutdown signal from the device, so as to release the electrical energy of the energy storage element through the operation of the motor.

[0052] The discharge process occurs after receiving the unit's shutdown signal, so the unit does not operate during the discharge process. For example, in an air conditioning unit, which is no longer cooling or heating, rapid discharge will not affect the entire unit; it is simply to quickly clear the electrical charge after shutdown and protect personal safety.

[0053] In the above embodiments, a device discharge control scheme is provided. This device discharge control device includes a motor discharge circuit that discharges energy to the energy storage element via a motor. It also includes a controller that, upon receiving a device shutdown signal, controls the motor to operate, thereby releasing the electrical energy from the energy storage element. Because the motor operation can quickly consume the electrical energy of the energy storage element, it effectively solves the problem of the mainboard remaining energized after the device is shut down, posing a safety hazard. Furthermore, the rapid discharge capability of the motor allows for quick unloading of residual power in devices with energy storage elements, making it easier to ensure user safety, avoid electric shock, and thus improve device safety.

[0054] As Figure 1 shown, the motor at least includes: a first motor M1 and a second motor M2; the first motor and the second motor each refer to one or more motor modules. The device discharge control device further includes: a voltage detector connected with the bus voltage of the mainboard for detecting the bus voltage of the mainboard; the controller is further connected with the voltage detector, for controlling the first motor and the second motor to operate when receiving the shutdown signal of the device and the bus voltage is greater than the first preset voltage value, releasing the electric energy of the energy storage element through the operation of the first motor and the second motor, and controlling the first motor or the second motor to operate when the bus voltage is not greater than the first preset voltage value, releasing the electric energy of the energy storage element through the operation of the first motor or the second motor. In specific implementation, the first motor or the second motor can be determined according to the need, and if it is necessary to release the electric energy as soon as possible, the motor with greater power among the first motor and the second motor is used to operate for discharging. In a conventional refrigeration system, there are two kinds of motors with compressors and fans, and the above discharge scheme can be used to adjust the use of the compressor and the fan for combined or separate discharge according to the size of the residual electric quantity of the bus voltage, and the flexibility is very high.

[0055] In addition to the motor discharge circuit, the device discharge control device further includes a resistance discharge circuit composed of an energy storage element and a discharge resistor; as Figure 1 shown, the discharge resistor R1 is used for discharging. Compared with the motor, the discharge resistor is slower in discharging speed (usually the time for the resistor to empty the electric quantity of the large capacitor is more than 10 minutes, and the time for discharging by using the motor of the device is almost completed within a few seconds), and therefore, when the bus voltage is less than the second preset voltage value, the switch assembly is controlled to be closed, and the electric energy of the energy storage element is discharged through the resistance discharge circuit; wherein the second preset voltage value is less than the first preset voltage value. That is, after the motor is discharged and the residual electric quantity is small, the resistance discharge can be used to completely discharge the residual electric quantity.

[0056] In the above embodiment, the motor braking is used for discharging at the initial stage of receiving the shutdown instruction, and the slow (resistance) discharging mode is switched to when the bus voltage is reduced to a certain voltage threshold, and the electric quantity in the capacitor is completely consumed. The advantage of this design can avoid the impact of large current moment on the components at the moment of shutdown, causing damage to the components, and if the resistance discharge is directly used after shutdown, the resistance and other components will be subjected to a large power at the initial stage of discharging, thereby causing the service life of the components to be shortened or even damaged.

[0057] As a preferred embodiment of the present application, the motor comprises a power control module, the controller is connected with the motor through the power control module, and the controller controls the charging device of the mainboard to be disconnected and controls the power control module to keep outputting to control the motor to run after receiving the shutdown signal of the equipment. Moreover, the power control module and the controller are powered by the energy storage element after receiving the shutdown signal of the equipment. As for the control of the charging device of the mainboard, the MCU can be used to control the charging device, such as a charging relay, to be disconnected, and the MCU can also be powered by the energy storage element.

[0058] When the first motor and / or the second motor is running, the controller is further configured to: control the rotation speed of the first motor and / or the second motor according to the bus voltage, or control the first motor and / or the second motor to run at a preset fixed rotation speed; wherein the preset fixed rotation speed at least includes a first rotation speed before receiving the shutdown signal and a second rotation speed smaller than the first rotation speed. Controlling the rotation speed of the motor according to the bus voltage can set the discharge speed according to the residual power, which is more intelligent. It is also feasible to run at the rotation speed before the shutdown signal or a low speed for discharging.

[0059] As shown in Figure 1 The equipment discharge control device further comprises a warning light D1 connected with the energy storage element, used for indicating the electrification condition of the energy storage element, wherein the more the electric quantity of the energy storage element is, the higher the brightness of the warning light is. The warning light can be an LED light. With the warning light, the user can more intuitively know whether the electric quantity of the mainboard is depleted after shutdown, thereby protecting personal safety.

[0060] The new discharge control logic of the motor braking is composed of a controller and a discharge circuit. The power control module is an essential module for motor control, the voltage detector can collect the bus voltage in real time, make logical judgment on the bus voltage, trigger the corresponding discharge loop, and discharge the energy storage element.

[0061] Embodiment 2

[0062] In the preferred embodiment 2 of the present application, an air conditioning unit is provided, which comprises the equipment discharge control device in the above-mentioned embodiment 1, and the motor of the air conditioning unit comprises a fan motor (first motor) and a compressor motor (second motor).

[0063] The refrigeration system such as air conditioning unit is equipped with at least one compressor and one fan (such as an external fan), and the discharge speed of the mainboard after receiving the shutdown instruction is extremely slow, which threatens the personal safety of users and testers. The application utilizes a new discharge logic of motor braking, and at the initial stage of receiving the shutdown signal, the motor of the refrigeration equipment is utilized for discharge, and this process is often very fast (usually, the time for discharging the electric quantity of the large capacitor by the resistance is up to 10 minutes, and the time for discharging by the fan of the refrigeration equipment is almost completed within several seconds). The charging device is controlled to be disconnected by the MCU, and the output of the corresponding motor power control module is maintained, and the braking of the compressor and the fan is utilized for short-time discharge.

[0064] After the bus voltage is lower than the first preset voltage value, the output of the compressor power control module is turned off, only the output of the fan power control module is maintained, and the discharge by the fan is continued; after the bus voltage is lower than the second preset voltage value, the outputs of the compressor and the fan power control modules are turned off, and the resistance discharge mode is switched to, and the remaining electric quantity is continued to be discharged. The above discharge control is fast and safe, and is matched with an LED warning lamp, so that the user can more directly see whether the electric quantity of the mainboard is exhausted after shutdown, and the personal safety is protected.

[0065] In the above embodiment, a device discharge control scheme is provided, the device discharge control device is provided with a motor discharge circuit for discharging the energy storage element by the motor, and is also provided with a controller, after receiving the shutdown signal of the device, the motor is controlled to operate, so as to release the electric energy of the energy storage element by the operation of the motor. Since the operation of the motor can quickly consume the electric energy of the energy storage element, the problem that the mainboard is still electrified after the shutdown of the device and the safety hidden danger are effectively solved, the motor operation can quickly discharge, it is easier to protect the safety of the user for the device with the energy storage element to unload the residual electricity as soon as possible, and the electric shock is avoided, so that the safety of the device is improved.

[0066] Embodiment 3

[0067] In the preferred embodiment 3 of the application, an air conditioning unit control method is provided, which is applied to the air conditioning unit in the above-mentioned embodiment 2. Specifically, Figure 2 An optional flow chart of the method is shown as Figure 2 The method comprises the following steps S202-S204:

[0068] S202: after receiving the shutdown signal of the air conditioning unit, detecting the bus voltage of the mainboard;

[0069] S204: controlling the operation of the motor according to the bus voltage, so as to release the electric energy of the energy storage element by the operation of the motor.

[0070] In the above embodiment, a device discharge control scheme is provided, the device discharge control device is provided with a motor discharge circuit for discharging the energy storage element through the motor, and is also provided with a controller, after receiving the shutdown signal of the device, the controller controls the motor to operate to release the electric energy of the energy storage element through the operation of the motor. Since the operation of the motor can quickly consume the electric energy of the energy storage element, the problem of the mainboard still being electrified after the shutdown of the device and the safety hazard are effectively solved, the motor operation can quickly discharge, it is easier to protect the safety of the user to unload the residual electricity as soon as possible to avoid electric shock, thereby improving the safety of the device.

[0071] In a preferred embodiment of the present application, the motor operation is controlled according to the bus voltage, including: judging whether the bus voltage is greater than a first preset voltage value; when the bus voltage is greater than the first preset voltage value, controlling the first motor and the second motor to operate to release the electric energy of the energy storage element through the operation of the first motor and the second motor; when the bus voltage is not greater than the first preset voltage value, controlling the first motor or the second motor to operate to release the electric energy of the energy storage element through the operation of the first motor or the second motor.

[0072] Preferably, after the motor operation is controlled according to the bus voltage, the bus voltage is detected again to judge whether the bus voltage is less than a second preset voltage value; wherein the second preset voltage value is less than the first preset voltage value; when the bus voltage is less than the second preset voltage value, the switch assembly is controlled to be closed to release the electric energy of the energy storage element through the resistance discharge circuit; otherwise, the motor operation is continued to be controlled.

[0073] In a preferred embodiment 2 of the present application, another air conditioning unit control method is also provided, specifically, Figure 3 An optional flow chart of the method is shown as Figure 3 The method includes the following steps S301-S310:

[0074] S301: start;

[0075] S302: the unit is normally operated;

[0076] S303: whether a shutdown instruction is received; if yes, step S304 is entered, otherwise, step S302 is returned;

[0077] S304: the charging device is disconnected, and the IPM keeps outputting; C1 is a large capacitor and still has a high voltage after shutdown, at this time, the MCU controls the charging device to be disconnected, and the motor IPM (power control) module still keeps outputting;

[0078] S305: whether the bus voltage is lower than (x1) V; if yes, step S306 is entered, otherwise, step S307 is returned;

[0079] S306: discharging with M2;

[0080] S307: discharging with M1 and M2; assuming M1 is a motor with higher power, i.e. M1 >P M2 , then M1 and M2 will keep braking output at the same time to discharge at the beginning of the discharge logic, and when the bus voltage U1 is lower than the first preset voltage X1 (U1X1), the output of M1 is interrupted, and only the output of M2 is kept;

[0081] S308: whether the bus voltage is lower than (x2) V; if yes, go to step S309, otherwise, return to step S304;

[0082] S309: resistance discharge; when the bus voltage U1 is lower than the second preset voltage X2 (U1X2), the output of M2 is interrupted, and switched to resistance discharge, at this time the remaining power of the capacitor C1 is only absorbed by the resistor R1 and until the capacitor is discharged, wherein X1>X2;

[0083] S310: power empty, discharge complete. Throughout the process, the LED warning light reminds, and the LED warning light will gradually dim, so that the discharge of the mainboard can be observed intuitively.

[0084] The application utilizes the discharge control of motor braking to form a new and fast discharge mechanism. After the refrigeration equipment sends a shutdown signal, the IPM module output is not interrupted, and then a short discharge is performed by using the continuous operation of the compressor and the fan, and after being lower than a certain voltage threshold, it is changed to resistance discharge, and the diode LED lamp is matched, so that the user can observe whether the mainboard power is exhausted in real time according to the brightness of the LED lamp, and then the personal safety of the user is protected. The resistance discharge alone will immediately interrupt the signal output of the IPM module after the mainboard receives the shutdown signal, and the instantaneous power surge may impact the power switch device, causing the service life of the power device in the IPM module to be reduced. The new discharge control logic of motor braking is faster and safer than the traditional discharge logic, and the LED lamp can more intuitively allow the user to observe the discharge of the mainboard.

[0085] Embodiment 4

[0086] Based on the air conditioning unit control method provided in the above embodiment 3, in the preferred embodiment 4 of the application, a storage medium containing computer executable instructions is also provided, which is used to execute the air conditioning unit control method as described above when executed by a computer processor.

[0087] In the above-mentioned embodiments, the device discharge control scheme is provided with a motor discharge circuit for discharging the energy storage element through the motor, and is also provided with a controller, which controls the motor to operate to release the electric energy of the energy storage element after receiving the shutdown signal of the device. Since the motor operation can quickly consume the electric energy of the energy storage element, the problem of the mainboard still being electrified after the device is shut down and the safety hazard are effectively solved, and the motor operation can quickly discharge, which is more conducive to unloading the residual electricity of the device with the energy storage element as soon as possible, and is easier to protect the safety of the user, avoid electric shock, and thus improve the safety of the device.

[0088] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0089] It is to be understood that the application is not limited to the precise details of construction and the above-described and shown embodiments, and that various modifications and changes can be effected therein by one skilled in the art without departing from the scope of the application. The scope of the application should be determined by the terms of the following claims.

Claims

1. A device discharge control apparatus, characterized in that, The device includes a motor and energy storage components mounted on the motherboard; The equipment discharge control device includes: The motor and the energy storage element constitute the motor discharge circuit; A controller, connected to the motor, is used to control the motor to operate after receiving a shutdown signal from the device, so as to release the electrical energy of the energy storage element through the operation of the motor. The motor includes at least: a first motor and a second motor; the equipment discharge control device further includes: A voltage detector, connected to the bus voltage of the motherboard, is used to detect the bus voltage of the motherboard; The controller is also connected to the voltage detector and is used to control the first motor and the second motor to operate when the bus voltage is greater than the first preset voltage value after receiving the power-off signal of the device, thereby releasing the electrical energy of the energy storage element through the operation of the first motor and the second motor; and to control the first motor or the second motor to operate when the bus voltage is not greater than the first preset voltage value, thereby releasing the electrical energy of the energy storage element through the operation of the first motor or the second motor.

2. The equipment discharge control device according to claim 1, characterized in that, Also includes: The energy storage element and the discharge resistor form a resistive discharge circuit; A switching assembly is disposed on the resistor discharge circuit and is used to control the on / off state of the resistor discharge circuit; The controller is also connected to the switch assembly for controlling the switching of the switch assembly.

3. The equipment discharge control device according to claim 2, characterized in that, The controller is also configured to control the switch assembly to close when the bus voltage is less than a second preset voltage value, and release the electrical energy of the energy storage element through the resistor discharge circuit; wherein the second preset voltage value is less than the first preset voltage value.

4. The equipment discharge control device according to claim 1, characterized in that, The motor includes a power control module, and the controller is connected to the motor through the power control module. After receiving a power-off signal from the device, the controller controls the charging device of the motherboard to disconnect and controls the power control module to maintain output in order to control the operation of the motor.

5. The equipment discharge control device according to claim 4, characterized in that, The power control module and the controller are powered by the energy storage element after receiving the shutdown signal from the device.

6. The equipment discharge control device according to claim 1, characterized in that, When the first motor and / or the second motor are operating, the controller is further configured to: control the speed of the first motor and / or the second motor according to the bus voltage, or control the first motor and / or the second motor to operate at a preset fixed speed; wherein the preset fixed speed includes at least a first speed before receiving the shutdown signal and a second speed less than the first speed.

7. The equipment discharge control device according to claim 1, characterized in that, Also includes: A warning light, connected to the energy storage element, is used to indicate the charging status of the energy storage element, wherein the more charge the energy storage element has, the brighter the warning light becomes.

8. An air conditioning unit, characterized in that, The device includes the equipment discharge control device as described in any one of claims 1 to 7, wherein the motor of the air conditioning unit includes a fan motor and a compressor motor.

9. A method for controlling an air conditioning unit, characterized in that, Applied to the air conditioning unit as described in claim 8, the method includes: After receiving the shutdown signal from the air conditioning unit, the bus voltage of the main board is detected; The motor is controlled to operate according to the bus voltage, so as to release the electrical energy of the energy storage element through the operation of the motor.

10. The air conditioning unit control method according to claim 9, characterized in that, Controlling motor operation based on the bus voltage includes: Determine whether the bus voltage is greater than a first preset voltage value; When the bus voltage is greater than the first preset voltage value, the first motor and the second motor are controlled to operate, and the electrical energy of the energy storage element is released through the operation of the first motor and the second motor. When the bus voltage is not greater than the first preset voltage value, the first motor or the second motor is controlled to operate, and the electrical energy of the energy storage element is released through the operation of the first motor or the second motor.

11. The air conditioning unit control method according to claim 10, characterized in that, After controlling the motor operation according to the bus voltage, the method further includes: The bus voltage is re-detected to determine whether the bus voltage is less than a second preset voltage value; wherein the second preset voltage value is less than the first preset voltage value. When the bus voltage is less than the second preset voltage value, the control switch assembly closes, and the electrical energy of the energy storage element is released through the resistor discharge circuit; Otherwise, continue to control the operation of the motor.

12. The air conditioning unit control method according to claim 9, characterized in that, Controlling motor operation based on the bus voltage also includes: The speed of the motor is controlled according to the bus voltage, or the motor is controlled to run at a preset fixed speed; wherein the preset fixed speed includes at least a first speed before receiving the shutdown signal and a second speed less than the first speed.

13. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions, when executed by a computer processor, are used to perform the air conditioning unit control method as described in any one of claims 9 to 12.

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