A power supply and distribution ups power supply cabinet and a control method thereof

Abstract

The application relates to a power supply cabinet, in particular to a power supply cabinet for power distribution UPS and a control method thereof, which comprises a cabinet, a storage battery and a conversion device, and further comprises a moving device; the moving device comprises a mounting seat, a driving rod, a moving seat, a clamping plate, a first spring and a locking assembly; the mounting seat is pushed to move into the cabinet; the moving seat is driven to move in the process that the mounting seat moves; after the inclined surface on the moving seat contacts with the inclined surface on the driving rod, the driving rod drives the moving seat to move, the moving seat drives the clamping plate to move towards the storage battery, so that the two clamping plates can be clamped on the two sides of the storage battery; in the process that the mounting seat moves into the cabinet, the plug on the storage battery is connected with the connector, so that the storage battery is connected with the conversion device, and finally the mounting seat is locked through the locking assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power supply cabinets, in particular to a power supply and distribution UPS power supply cabinet and a control method thereof. BACKGROUND

[0002] UPS, which stands for Uninterruptible Power Supply, is an uninterrupted power supply containing an energy storage device. The traditional UPS power supply is not convenient for replacing the internal battery. When the battery is disassembled, the entire cabinet needs to be disassembled, which leads to inconvenient operation.

[0003] The prior art CN220527733U discloses an uninterrupted power supply cabinet, which comprises a power supply cabinet body, an internal protection frame fixedly connected to the inner wall of the power supply cabinet body, a push-pull plate arranged inside the internal protection frame, a plurality of batteries arranged on the upper surface of the push-pull plate, a power conversion box fixedly connected to the inner bottom wall of the power supply cabinet body, each battery being electrically connected to the power conversion box through a connecting line, a fixed baffle fixedly connected to the back surface of the push-pull plate, and a plurality of cooling fans fixedly connected to the inner wall of the power supply cabinet body. The batteries installed inside the device can store electricity, so that the cabinet can provide uninterrupted power supply when power is cut off. The batteries can be conveniently replaced by being placed in the push-pull plate, thereby increasing the practicality of the device. At the same time, the batteries are installed inside the cabinet, thereby reducing the occupied area of the cabinet and facilitating carrying.

[0004] The above-mentioned device facilitates the removal of the battery through the push-pull plate, but the unstable placement of the battery on the push-pull plate causes the battery to shake inside the cabinet when the cabinet is moved, leading to damage of the battery due to collision or unstable connection. SUMMARY

[0005] The present application aims to provide a power supply and distribution UPS power supply cabinet and a control method thereof, which solves the problem of the prior art uninterrupted power supply cabinet that facilitates the removal of the battery through the push-pull plate, but the unstable placement of the battery on the push-pull plate causes the battery to shake inside the cabinet when the cabinet is moved, leading to damage of the battery due to collision or unstable connection.

[0006] In order to achieve the above object, the application provides a power distribution UPS power supply cabinet and a control method thereof, which comprises a cabinet, a storage battery and a conversion device, the storage battery is arranged in the cabinet, the conversion device is arranged in the cabinet and is electrically connected with the storage battery, and further comprises a moving device; the moving device comprises a mounting seat, a driving rod, a moving seat, a clamping plate, a first spring and a locking assembly, the mounting seat is slidably connected with the cabinet and is connected with the storage battery and is located in the cabinet, the driving rod is fixedly connected with the cabinet and is located in the cabinet, the moving seat is slidably connected with the mounting seat and is arranged on the cabinet, the clamping plate is fixedly connected with the moving seat and is arranged on the moving seat, the two ends of the first spring are connected with the moving seat and the mounting seat respectively, and the first spring is located in the mounting seat, and the locking assembly is arranged on the mounting seat.

[0007] The clamping plate comprises a plate body and a rubber pad, the plate body is fixedly connected with the moving seat and is arranged on the moving seat, and the rubber pad is fixedly connected with the plate body and is located on the side of the plate body close to the storage battery.

[0008] The locking assembly comprises a driving seat, a locking plate, a first driving shaft and a driving member, the driving seat is slidably connected with the mounting seat and is located in the mounting seat, the first driving shaft is slidably connected with the driving seat and is arranged on the driving seat, the locking plate is fixedly connected with the first driving shaft and is slidably connected with the mounting seat and is arranged on the first driving shaft, and the driving member is arranged on the mounting seat.

[0009] The locking assembly further comprises a locking seat and a second driving shaft, the second driving shaft is slidably connected with the driving seat and is arranged on the driving seat, and the locking seat is fixedly connected with the second driving shaft and is slidably connected with the mounting seat and is arranged on the second driving shaft.

[0010] The driving seat is provided with a first driving groove and a second driving groove, the first driving groove is arranged on the side of the driving seat close to the first driving shaft, and the second driving groove is arranged on the side of the driving seat close to the second driving shaft.

[0011] The driving member comprises a connecting rod, a second spring, a sliding block and a rotating part, the sliding block is slidably connected with the mounting seat and is located in the mounting seat, the two ends of the connecting rod are fixedly connected with the sliding block and the driving seat respectively, the connecting rod is located in the mounting seat, the two ends of the second spring are connected with the connecting rod and the mounting seat respectively, the second spring is sleeved on the connecting rod, and the rotating part is used for driving the sliding block to move.

[0012] The application further comprises a control method of the power supply UPS power supply cabinet, which is applied to the power supply UPS power supply cabinet and comprises the following steps:

[0013] The commercial power first enters the conversion device through the input end, is pretreated by the conversion device, and high-frequency noise and interference in the power grid are removed;

[0014] The pretreated commercial power is converted into direct current by the conversion device to charge the battery;

[0015] When the commercial power is interrupted or abnormally fluctuates, the battery rapidly discharges, the direct current is converted into alternating current by the conversion device, and the alternating current is supplied to other devices in the cabinet;

[0016] When the commercial power returns to normal, the power supply mode is switched back to the commercial power.

[0017] In use, the locking assembly is unlocked to the mounting seat, at this time, the mounting seat is pulled out of the cabinet, and the battery is moved out of the cabinet; the mounting seat drives the moving seat to move in the moving process, and the moving seat moves under the action of the first spring after the moving seat is separated from the driving seat, and then the clamping plate is moved, so that the clamping plate is away from the battery, at this time, the fixing of the battery is released, so that the staff can take down and replace the battery; after the replacement is completed, the mounting seat is pushed to move to the inside of the cabinet, the moving seat is moved in the moving process of the mounting seat, and the driving rod drives the moving seat to move after the inclined surface on the moving seat is in contact with the inclined surface on the driving rod, and then the moving seat drives the clamping plate to move to the battery, so that the two clamping plates can be clamped on both sides of the battery, the plug on the battery is connected with the connector in the moving process of the mounting seat to the inside of the cabinet, and finally the mounting seat is locked by the locking assembly; after the mounting seat in the application is moved out of the inside of the cabinet, the clamping plate is away from the battery, at this time, the battery can be taken down, and after the mounting seat is installed in the inside of the cabinet, the two clamping plates can be clamped on both sides of the battery, the fixing effect of the battery is improved, and the problems of loose connection and damage of the battery caused by collision are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0019] Figure 1 is the overall structure schematic diagram of the power supply UPS power supply cabinet of the first embodiment of the application.

[0020] Figure 2 is the mounting structure diagram of the mounting seat of the first embodiment of the application.

[0021] Figure 3 is the structure diagram of the moving device of the first embodiment of the application.

[0022] Figure 4 is the structure diagram of the locking assembly of the first embodiment of the application.

[0023] Figure 5 is the mounting structure diagram of the moving seat of the first embodiment of the application.

[0024] Figure 6 is the structure diagram of the first driving slot and the second driving slot of the first embodiment of the application.

[0025] Figure 7 is the structure diagram of the rotating part of the second embodiment of the application.

[0026] Figure 8 is the mounting structure diagram of the handle of the second embodiment of the application.

[0027] Figure 9 is the flow chart of the control method of the power supply and distribution UPS power supply case of the third embodiment of the application.

[0028] In the figure: 101 - case, 102 - battery, 103 - conversion device, 104 - moving device, 105 - mounting seat, 106 - driving rod, 107 - moving seat, 108 - clamping plate, 109 - first spring, 110 - locking assembly, 111 - plug, 112 - joint, 113 - plate body, 114 - rubber pad, 115 - driving seat, 116 - locking plate, 117 - first driving shaft, 118 - driving member, 119 - locking seat, 120 - second driving shaft, 121 - first driving slot, 122 - second driving slot, 201 - connecting rod, 202 - second spring, 203 - sliding block, 204 - rotating part, 205 - rotating shaft, 206 - cam, 207 - handle, 208 - torsional spring. DETAILED DESCRIPTION

[0029] The embodiments of the application are described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the accompanying drawings are exemplary, and are intended to explain the application, and cannot be understood as a limitation of the application.

[0030] First embodiment:

[0031] Please refer to Figures 1 to 6 , wherein Figure 1 is the overall structure diagram of the power supply and distribution UPS power supply case, Figure 2is a schematic view of the mounting structure of the mounting seat, Figure 3 is a schematic view of the structure of the mobile device, Figure 4 is a schematic view of the structure of the locking assembly, Figure 5 is a schematic view of the mounting structure of the mobile seat, Figure 6 is a schematic view of the structure of the first driving slot and the second driving slot.

[0032] The application provides a power supply UPS power cabinet, which comprises a cabinet 101, a storage battery 102, a conversion device 103 and a mobile device 104, the mobile device 104 comprises a mounting seat 105, a driving rod 106, a mobile seat 107, a clamping plate 108, a first spring 109 and a locking assembly 110, the clamping plate 108 comprises a plate body 113 and a rubber pad 114, the locking assembly 110 comprises a driving seat 115, a locking plate 116, a first driving shaft 117, a driving member 118, a locking seat 119 and a second driving shaft 120, the driving seat 115 is provided with a first driving slot 121 and a second driving slot 122, the storage battery 102 and the mobile seat 107 are moved by pulling out the mounting seat 105, when the mobile seat 107 is separated from the driving rod 106, the mobile seat 107 is away from the storage battery 102 under the action of the first spring 109, thereby releasing the fixation of the storage battery 102, at this time, the storage battery 102 is conveniently taken out, and when the mounting seat 105 is pushed in, the mobile seat 107 drives the clamping plate 108 to be close to the storage battery 102 under the action of the driving rod 106, thereby clamping and fixing the storage battery 102, and it can be understood that the foregoing scheme can be used when the storage battery 102 is fixed, and can also be used when a plug 111 and a connector 112 are fixed.

[0033] For the specific embodiment, the storage battery 102 is arranged in the cabinet 101, the conversion device 103 is arranged in the cabinet 101 and electrically connected with the storage battery 102, the plug 111 is arranged on the storage battery 102, the connector 112 is arranged on the conversion device 103, the plug 111 and the connector 112 are detachably connected, the storage battery 102 is electrically connected with the conversion device 103 through the plug 111 and the connector 112, the storage battery 102 can store electric energy, so that the cabinet 101 can uninterruptedly provide power supply when power is off, the conversion device 103 mainly comprises an inverter module, a filter circuit and a related control circuit, can convert the direct current energy stored in the storage battery 102 into alternating current energy, and ensure that the output alternating current has stable voltage, frequency and waveform, the conversion device 103 and the storage battery 102 are prior art, and the structure and principle thereof will not be described in detail here.

[0034] The mounting seat 105 is in sliding connection with the case 101 and is connected with the battery 102 and located inside the case 101, the driving rod 106 is in fixed connection with the case 101 and located inside the case 101, the moving seat 107 is in sliding connection with the mounting seat 105 and arranged on the case 101, the clamping plate 108 is in fixed connection with the moving seat 107 and arranged on the moving seat 107, the two ends of the first spring 109 are respectively connected with the moving seat 107 and the mounting seat 105, the first spring 109 is located inside the mounting seat 105, and the locking assembly 110 is arranged on the mounting seat 105; the locking assembly 110 is used for locking the mounting seat 105 inside the case 101, the locking assembly 110 can lock the plug 111 and the connector 112, so that the plug 111 and the connector 112 are prevented from loosening and affecting use, the driving rod 106, the moving seat 107, the clamping plate 108 and the first spring 109 are each provided with two and located on the two sides of the mounting seat 105, and the driving rod 106 and the moving seat 107 are provided with inclined surfaces matched with each other.

[0035] In use, the locking assembly 110 is unlocked from the mounting seat 105, and the mounting seat 105 is pulled out of the cabinet 101, thereby driving the battery 102 out of the cabinet 101; the moving seat 107 is driven to move during the movement of the mounting seat 105, and the moving seat 107 moves under the elastic action of the first spring 109 after the moving seat 107 is separated from the driving seat 115, thereby driving the clamping plate 108 to move away from the battery 102, so that the battery 102 is fixed, thereby facilitating the worker to remove the battery 102 for replacement; after the replacement is completed, the mounting seat 105 is pushed to move into the cabinet 101, the moving seat 107 is driven to move during the movement of the mounting seat 105, the driving rod 106 drives the moving seat 107 to move after the inclined surface on the moving seat 107 contacts the inclined surface on the driving rod 106, thereby driving the moving seat 107 to move the clamping plate 108 to the battery 102, so that the two clamping plates 108 can be clamped on both sides of the battery 102, and the plug 111 on the battery 102 is connected with the connector 112 during the movement of the mounting seat 105 into the cabinet 101, and finally the mounting seat 105 is locked by the locking assembly 110, and the clamping plate 108 is away from the battery 102 after the mounting seat 105 is removed from the cabinet 101, so that the battery 102 is conveniently removed, and the two clamping plates 108 can be clamped on both sides of the battery 102 after the mounting seat 105 is installed in the cabinet 101, thereby improving the fixing effect of the battery 102 and avoiding the problems of loose connection or damage of the battery 102 due to impact.

[0036] Secondly, the plate body 113 is fixedly connected with the moving seat 107 and arranged on the moving seat 107; the rubber pad 114 is fixedly connected with the plate body 113 and located on the side of the plate body 113 close to the battery 102; the rubber pad 114 is in contact with the surface of the battery 102, thereby improving the fixing effect of the battery 102 and avoiding damage to the surface of the battery 102.

[0037] Meanwhile, the driving seat 115 is slidably connected with the mounting seat 105 and located in the mounting seat 105; the first driving shaft 117 is slidably connected with the driving seat 115 and arranged on the driving seat 115; the locking plate 116 is fixedly connected with the first driving shaft 117 and slidably connected with the mounting seat 105 and arranged on the first driving shaft 117; and the driving member 118 is arranged on the mounting seat 105.

[0038] In addition, the second driving shaft 120 is in sliding connection with the driving seat 115 and is arranged on the driving seat 115; the locking seat 119 is in fixed connection with the second driving shaft 120 and is in sliding connection with the mounting seat 105 and is arranged on the second driving shaft 120.

[0039] Finally, the first driving groove 121 is arranged on one side of the driving seat 115 close to the first driving shaft 117; and the second driving groove 122 is arranged on one side of the driving seat 115 close to the second driving shaft 120.

[0040] The first driving groove 121 and the second driving groove 122 are both arranged in an inclined manner; the first driving shaft 117 and the second driving shaft 120 respectively extend into the first driving groove 121 and the second driving groove 122; the driving member 118 is used to drive the driving seat 115 to move; the bottom of the case 101 is provided with a locking groove matched with the locking plate 116; and the plug 111 and the connector 112 are provided with locking grooves matched with the locking seat 119; when it is needed to pull out the mounting seat 105 to replace the storage battery 102, the driving seat 115 is driven to move by the driving member 118, the driving seat 115 drives the first driving groove 121 and the second driving groove 122 on it to move, and then the first driving shaft 117 is lifted under the action of the first driving groove 121, while the second driving shaft 120 is lowered under the action of the second driving groove 122; at this time, the locking seat 119 is moved out of the locking grooves on the plug 111 and the connector 112, and the locking plate 116 is moved out of the locking groove in the inside of the case 101; at this time, the plug 111 and the connector 112 can be separated, and the mounting seat 105 can slide, so that the staff can pull out the mounting seat 105 and the storage battery 102 out of the case 101; after replacement is completed, the staff pushes the mounting seat 105 into the case 101, and reversely drives the driving seat 115 to move again by the driving member 118; at this time, the locking seat 119 is lifted to be clamped into the locking grooves on the plug 111 and the connector 112, and the locking plate 116 is lowered to extend into the locking groove to lock the mounting seat 105; the plug 111 and the connector 112 are locked by the locking seat 119, and the mounting seat 105 is locked by the locking plate 116, so as to avoid the plug 111 and the connector 112 from being loose.

[0041] Second embodiment:

[0042] On the basis of the first embodiment, please refer to Figure 7 and Figure 8 , Figure 7is a structural schematic view of a rotating component of the second embodiment, Figure 8 is a schematic view of the mounting structure of the handle of the second embodiment, the driving member 118 of the embodiment comprises a connecting rod 201, a second spring 202, a sliding block 203 and a rotating component 204, the rotating component 204 comprises a rotating shaft 205, a cam 206, a handle 207 and a torsion spring 208.

[0043] For this specific embodiment, the sliding block 203 is in sliding connection with the mounting seat 105 and is located inside the mounting seat 105; the two ends of the connecting rod 201 are fixedly connected with the sliding block 203 and the driving seat 115 respectively, and the connecting rod 201 is located inside the mounting seat 105; the two ends of the second spring 202 are connected with the connecting rod 201 and the mounting seat 105 respectively, and the second spring 202 is sleeved on the connecting rod 201; the rotating component 204 is used for driving the sliding block 203 to move.

[0044] Among them, the rotating shaft 205 is in rotating connection with the mounting seat 105 and is arranged on the mounting seat 105; the cam 206 is fixedly connected with the rotating shaft 205 and is sleeved on the rotating shaft 205; the handle 207 is fixedly connected with the rotating shaft 205 and is arranged on the rotating shaft 205.

[0045] Secondly, the two ends of the torsion spring 208 are connected with the rotating shaft 205 and the mounting seat 105 respectively, and the torsion spring 208 is sleeved on the rotating shaft 205.

[0046] The second spring 202 applies force to the connecting rod 201, which drives the slider 203 to move, and the slider 203 is always in contact with the surface of the cam 206, which is provided with a protrusion; the torsion spring 208 applies force to the rotating shaft 205, which drives the cam 206 and the handle 207 to move, and the handle 207 is in a vertical state to reduce the occupied space, while the protrusion on the cam 206 is away from the slider 203; when the battery 102 needs to be replaced, the handle 207 is rotated to drive the rotating shaft 205 and the cam 206 to rotate, and the handle 207 is rotated to a horizontal state to facilitate the operation of the staff, while the rotation of the cam 206 drives the slider 203 to move, and the slider 203 drives the connecting rod 201 and the driving seat 115 to move, the driving seat 115 drives the first driving shaft 117 and the second driving shaft 120 to move, and then the locking seat 119 is lowered, and the locking plate 116 is raised, so as to release the fixing of the plug 111 and the connector 112, and release the locking of the mounting seat 105, and then the mounting seat 105 is pulled out; when the replacement is completed, the staff releases the handle 207, and the rotating shaft 205 is reset under the elastic action of the torsion spring 208, and then the handle 207 is reset, so that the locking seat 119 and the locking plate 116 are reset.

[0047] When the battery 102 needs to be replaced, the handle 207 is rotated to drive the rotating shaft 205 and the cam 206 to rotate, so that the cam 206 drives the sliding block 203 to move, the sliding block 203 drives the connecting rod 201 and the driving seat 115 to move, the first driving groove 121 on the driving seat 115 drives the first driving shaft 117 to descend, the second driving groove 122 drives the second driving shaft 120 to ascend, so that the locking seat 119 is separated from the plug 111 and the connector 112, and the locking plate 116 is moved out of the locking groove. At this time, the handle 207 is pulled outward to drive the mounting seat 105 to move out, so that the mounting seat 105 drives the moving seat 107 to move. When the moving seat 107 is separated from the driving rod 106, the moving seat 107 is driven away from the battery 102 by the first spring 109, so that the clamping plate 108 is driven away from the battery 102, so that the clamping and fixing of the battery 102 are released, and the battery 102 is conveniently taken off. After the battery 102 is replaced, the mounting seat 105 is pushed into the cabinet 101. At this time, the moving seat 107 is driven to be close to the battery 102 by the driving rod 106, so that the two clamping plates 108 can be clamped on both sides of the battery 102. When the mounting seat 105 is in place, the handle 207 is released by the worker. At this time, the rotating shaft 205 is reset by the torsional spring 208, so that the cam 206 and the handle 207 are reset. At this time, the connecting rod 201 and the driving seat 115 are reset by the second spring 202, so that the locking seat 119 and the locking plate 116 are reset, and the mounting seat 105, the plug 111 and the connector 112 are locked again.

[0048] Third embodiment:

[0049] The application also includes a control method of the power supply UPS power supply cabinet, comprising the following steps:

[0050] S101: The commercial power first enters the conversion device 103 through the input end, and is pretreated by the conversion device 103 to remove high-frequency noise and interference in the power grid;

[0051] S102: The commercial power after pretreatment is converted into direct current by the conversion device 103 to charge the battery 102;

[0052] S103: When the commercial power is interrupted or abnormally fluctuates, the battery 102 rapidly discharges, converts the direct current into alternating current by the conversion device 103, and supplies other equipment in the cabinet 101;

[0053] S104: Switch back to the mains power supply mode when the mains is back to normal.

[0054] The above disclosure is merely one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present application, still fall within the scope covered by the present application.

Claims

1. A power supply and distribution UPS power cabinet, comprising a cabinet, a battery and a conversion device, the battery is arranged inside the cabinet, the conversion device is arranged inside the cabinet and is electrically connected with the battery, characterized in that, It further comprises a moving device; The moving device comprises a mounting seat, a driving rod, a moving seat, a clamping plate, a first spring and a locking assembly, the mounting seat is in sliding connection with the cabinet and is connected with the battery and is located inside the cabinet, the driving rod is fixedly connected with the cabinet and is located inside the cabinet, the moving seat is in sliding connection with the mounting seat and is arranged on the cabinet, the clamping plate is fixedly connected with the moving seat and is arranged on the moving seat, the two ends of the first spring are respectively connected with the moving seat and the mounting seat, and the first spring is located inside the mounting seat, and the locking assembly is arranged on the mounting seat. The locking assembly comprises a driving seat, a locking plate, a first driving shaft and a driving member, the driving seat is in sliding connection with the mounting seat and is located inside the mounting seat; the first driving shaft is in sliding connection with the driving seat and is arranged on the driving seat. The locking plate is fixedly connected with the first driving shaft and is in sliding connection with the mounting seat and is arranged on the first driving shaft; the driving member is arranged on the mounting seat. The locking assembly further comprises a locking seat and a second driving shaft, the second driving shaft is in sliding connection with the driving seat and is arranged on the driving seat; the locking seat is fixedly connected with the second driving shaft and is in sliding connection with the mounting seat and is arranged on the second driving shaft.

2. The power supply and distribution UPS power cabinet according to claim 1, characterized in that, The clamping plate comprises a plate body and a rubber pad, the plate body is fixedly connected with the moving seat and is arranged on the moving seat; the rubber pad is fixedly connected with the plate body and is located on the side of the plate body close to the battery.

3. The power supply and distribution UPS power cabinet according to claim 1, characterized in that, The driving seat has a first driving groove and a second driving groove, the first driving groove is arranged on the side of the driving seat close to the first driving shaft; the second driving groove is arranged on the side of the driving seat close to the second driving shaft.

4. The power supply and distribution UPS power cabinet according to claim 3, characterized in that, The driving member comprises a connecting rod, a second spring, a sliding block and a rotating part, the sliding block is in sliding connection with the mounting seat and is located inside the mounting seat; the two ends of the connecting rod are fixedly connected with the sliding block and the driving seat respectively, and the connecting rod is located inside the mounting seat; the two ends of the second spring are connected with the connecting rod and the mounting seat respectively, and the second spring is sleeved on the connecting rod; the rotating part is used for driving the sliding block to move.

5. A control method for a power supply and distribution UPS power supply cabinet, applied to the power supply and distribution UPS power supply cabinet as claimed in any one of claims 1-4, characterized in that, The following steps are included: The commercial power first enters the conversion device through the input end, is pretreated by the conversion device to remove high-frequency noise and interference in the power grid; The commercial power after pretreatment is converted into direct current by the conversion device to charge the battery; When the city power is interrupted or abnormal fluctuation, the battery rapidly discharges, converts the direct current into alternating current through the conversion device, and supplies other devices in the case with power; When the city power is restored, the power supply mode is switched back to the city power.

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