CN211125408U

CN211125408U - FATSP dual-power automatic transfer switch

Info

Publication number: CN211125408U
Application number: CN201922435163.3U
Authority: CN
Inventors: 章健明
Original assignee: Zhejiang Fuzi Electric Co ltd
Current assignee: Zhejiang Fuzi Electric Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-28
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a FATSP dual supply automatic transfer switch, including the body that is equipped with the slide rail, its characterized in that: the slide rail in movable mounting have a power selection device, power selection device both sides be equipped with termination, just power selection device remove the in-process, with termination contact each other, power selection device end-to-end connection have drive arrangement, drive arrangement electric connection have circuit module device, the utility model provides a pair of FATSP dual supply automatic transfer switch utilizes circuit module device control drive arrangement, further drives power selection device intercommunication termination, simple structure, the cost of manufacture is low, and the selection of different powers can be realized to the easy access.

Description

FATSP dual-power automatic transfer switch

Technical Field

The utility model belongs to the technical field of dual switch, especially, relate to a FATSP dual supply automatic transfer switch.

Background

A dual-power automatic transfer switch is automatically connected to a standby power supply through a dual-power transfer switch when power is suddenly cut off, so that the operation of people is not stopped and can be continued.

For example, chinese patent document discloses a dual power supply automatic transfer switch, where the number of applications is: 201910529402.3, the on-line screen storage device comprises a base, the upper cover, the circuit breaker group commonly used, reserve circuit breaker group and operating device, operating device is including rotating the handle of arranging on the upper cover, rotate and symmetrical arrangement in the handling frame on the base, fixed movable contact spring that sets up on the handling frame, connect the static contact on circuit breaker group commonly used and reserve circuit breaker group respectively, rotate the actuating lever of arranging in the base, the motor of being connected with the actuating lever, set up the driving lever between actuating lever and handling frame and set up the reset assembly who is used for resetting handling frame and driving lever between handling frame and driving lever, two driving levers symmetrical arrangement are in the both ends of actuating lever and are contradicted with the actuating lever, the handle is deep into one end and actuating lever fixed connection in the.

According to the double-power-supply automatic change-over switch in the scheme, although the function of the working stability during the change-over of the change-over switch is improved to a certain degree, the whole size is small, the structure is complex, the production and maintenance costs are high, and manual operation cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a FATSP dual supply automatic transfer switch is provided, utilizes circuit module device control drive arrangement, further drives power selection device intercommunication termination, simple structure, and the cost of manufacture is low, and the selection of different powers can be realized to the easy access.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model provides a FATSP dual supply automatic transfer switch, is including the body that is equipped with the slide rail, its characterized in that: the power supply selection device is movably mounted in the sliding rail, wiring devices are arranged on two sides of the power supply selection device, the power supply selection device is in contact with the wiring devices in the moving process, the tail end of the power supply selection device is connected with a driving device, and the driving device is electrically connected with a circuit module device.

As preferred, power selection device include with the mounting panel of slide rail mutually supporting, mounting panel upper end fixed mounting have a plurality of last switch-on blocks that are the distribution of annular array, switch-on block lower extreme one-to-one is provided with down the switch-on block on every, just lower switch-on block fixed mounting in the mounting panel on, mounting panel both sides still symmetry be equipped with the circular slot, every the circular slot in equal movable mounting have the spheroid, just the spheroid with set up in the body on the spout mutually support.

Preferably, the wiring device comprises a load access end arranged on one side of the body, a common power supply access end is further arranged on the other side of the body, and a standby power supply access end is arranged at the lower end of the common power supply access end.

Preferably, the load access end comprises a plurality of access plates, each access plate comprises a connecting plate, the upper end and the lower end of each connecting plate are respectively provided with an upper contact piece and a lower contact piece, an access end wiring board is fixedly installed on one side of each connecting plate, the lower end face of each upper contact piece is contacted with the upper end face of each upper conduction block, and the upper end face of each lower contact piece is contacted with the lower end face of each lower conduction block; the common power supply access end comprises a plurality of common end wiring boards fixedly arranged on the body, a first metal plate is arranged at the front end of each common end wiring board, and the upper end surface of each first metal plate and the lower end surface of each upper conduction block are positioned on the same horizontal plane; the stand-by power supply access end include a plurality of set up in the stand-by end access plate under the end wiring board commonly used, just the end wiring board commonly used with stand-by end access plate distribute and the one-to-one setting from top to bottom, stand-by end access plate front end be equipped with the second metal sheet, just the second metal sheet under the terminal surface with lower conduction block up end be located same horizontal plane.

Preferably, the widths of the first metal plate, the second metal plate, the upper conductive block and the lower conductive block are kept consistent, the widths of the upper contact piece and the lower contact piece are kept consistent, the width of the upper contact piece is larger than twice of the width of the first metal plate, and the distance between the first metal plate and the second metal plate is larger than the width of the first metal plate.

Preferably, the driving device comprises a driving rod fixedly installed on the installation plate, a rolling shaft is fixedly installed at the front end of the driving rod, grooves formed in the rolling shaft and the cam are matched with each other, the cam is fixedly installed on the rotating shaft, a motor is connected to the lower end of the rotating shaft, a wrench bayonet is arranged at the upper end of the rotating shaft, a partition plate is arranged at the upper end of the wrench bayonet, and a metal contact electrically connected with the circuit module device is arranged on the partition plate.

Preferably, the circuit module device comprises a circuit module device which comprises a control module, a fire-fighting linkage module, a signal module, a manual/automatic control module, a main voltage detection module, a standby voltage detection module, a generator power module, a generator starting module, a time delay module, a circuit breaker module and a display module, wherein the two circuit breaker modules are respectively and electrically connected with a main power circuit and a secondary voltage circuit, the secondary voltage circuit is electrically connected with a generator in an external space, the control module is electrically connected with the time delay module, the fire-fighting linkage module, the signal module, the main voltage detection module, the standby voltage detection module, the generator power module, the generator starting module, the manual/automatic control module and the display module, the circuit breaker module is electrically connected with the driving device, and the generator power module is electrically connected with a DC24V storage battery in the generator in the external space, the manual/automatic control module is connected with the metal contact of the partition board in a matching mode in a manual mode, all phase lines and zero lines in the power lines on two sides are respectively electrically connected with the main voltage detection module and the standby voltage detection module, the driving device is electrically connected with the power module of the generator, the starting module of the generator is electrically connected with the generator in an external space, and therefore voltage detection is achieved through the modules to enable the power lines to be switched on and off.

Preferably, one, two or three phase lines and one zero line are arranged in the external power supply line, so that the switch can be used under different power utilization conditions.

Preferably, a fire-fighting signal contact is arranged in the fire-fighting linkage module and is electrically connected with fire-fighting linkage equipment in an external space, so that the equipment is in a fire-fighting linkage state by utilizing the fire-fighting signal contact; the signal module is internally provided with a main closing indication output contact and a standby closing indication output contact, and the main closing indication output contact and the standby closing indication output contact are electrically connected with detection equipment in an external space, so that the equipment can be detected whether a main power supply and a standby power supply work normally or not by utilizing the contacts.

Preferably, a plurality of L ED indicating lamps are arranged in the display module, and the L ED indicating lamps respectively correspond to main power work, standby power work, fire-fighting linkage, main power failure and standby power failure, so that the display module is used for indicating the working condition of equipment.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses the power selection device who sets up in drives by drive arrangement, and drive arrangement adopts cam drive's mode for the structure is more stable, and power selection device's mounting panel bilateral symmetry is provided with the spheroid, utilizes spheroid and spout to mutually support, is favorable to power selection device's removal.

2. The utility model discloses the product that well set up has main power supply circuit and leads to the vein, is equipped with the operating condition of power supply circuit and leads to the vein and divide two, makes equipment work more reliable, and this product can be connected with fire control aggregate unit, makes equipment be in two branch states, and the practicality and the reliability of equipment this moment increase.

3. The product arranged in the utility model adopts the working mode of motor driving, the noise is low, and the operation is reliable; by adopting the display module X, personnel can know the working condition of the equipment more easily; the signal module 52 is adopted, so that the working condition of the equipment can be detected by external detection equipment when the equipment leaves a factory, and the yield of products is improved; by adopting the design of the extension module, the switching between the main power supply and the standby power supply has certain time delay, and the power utilization safety is ensured.

4. The utility model discloses the circuit module device of the product that well set up is supplied power by DC24V storage battery by generator inside, makes equipment can not keep normal work by main power supply circuit's influence to can when the main power supply trouble, start the generator, when treating generator output steady voltage, automatic switch to is equipped with the power, has fine reliability, has improved the practicality of equipment.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a top partial cross-sectional view of the present product.

Fig. 3 is a schematic position diagram of the power selection device, the wiring device and the driving device provided by the present invention.

Fig. 4 is a schematic wiring diagram of the circuit module device provided by the present invention.

In the figure, a main body 1, a slide rail 11, a power selection device 2, a mounting plate 21, an upper conduction block 22, a lower conduction block 23, a circular groove 24, a ball 25, a slide groove 26, a wiring device 3, a load access terminal F, an access plate F1, an upper contact piece F2, a lower contact piece F3, a connecting plate F4, an access terminal plate F5, a common power access terminal N, a common terminal plate N1, a first metal plate N2, a backup power access terminal R, a backup terminal access plate R1, a second metal plate R2, a driving device 4, a driving rod 41, a roller 42, a cam 43, a rotating shaft 45, a motor 46, a wrench socket 47, a partition plate 48, a circuit module device 5, a control module 50, a fire fighting linkage module 51, a signal module 52, a manual/automatic control module 53, a main voltage detection module 54, a backup voltage detection module 55, a generator power module 56, a generator starting module 57, a delay module 58, A circuit breaker module 59 and a display module X.

Detailed Description

As shown in fig. 1, fig. 2, fig. 3, and fig. 4, an automatic changeover switch for dual power supplies of a FATSP includes a main body 1 provided with a slide rail 11, and is characterized in that: the power supply selection device 2 is movably mounted in the slide rail 11, the wiring devices 3 are arranged on two sides of the power supply selection device 2, the power supply selection device 2 is in contact with the wiring devices 3 in the moving process, the tail end of the power supply selection device 2 is connected with the driving device 4, and the driving device 4 is electrically connected with the circuit module device 5.

Specifically, the power selection device 2 comprises a mounting plate 21 matched with the slide rail 11, a plurality of upper conduction blocks 22 distributed in an annular array are fixedly mounted at the upper end of the mounting plate 21, lower conduction blocks 23 are correspondingly arranged at the lower end of each upper conduction block 22 one by one, the lower conducting block 23 is fixedly arranged on the mounting plate 21, round grooves 24 are symmetrically arranged on both sides of the mounting plate 21, a ball 25 is movably arranged in each round groove 24, and the ball 25 is matched with the sliding slot 26 arranged on the body 1, the number of the upper conductive block 22 and the lower conductive block 23 in the device is kept consistent, and its number sets up according to the radical of wiring, and spheroid 25 and the cooperation of spout 26 are favorable to the removal of mounting panel 21 on the one hand, and on the other hand is favorable to also can set up the roller between the stable mounting panel 21 lower extreme of mounting panel 21 and slide rail 11, adopts the point contact replacement face contact, is favorable to reducing the friction.

Further, the wiring device 3 includes a load access end F disposed on one side of the body 1, a common power supply access end N is disposed on the other side of the body 1, and a standby power supply access end R is disposed at the lower end of the common power supply access end N.

More specifically, the load access terminal F includes a plurality of access boards F1, the access board F1 includes a connecting board F4 having an upper contact piece F2 and a lower contact piece F3 at upper and lower ends thereof, respectively, an access terminal wiring board F5 is fixedly mounted at one side of the connecting board F4, a lower end surface of the upper contact piece F2 contacts with an upper end surface of the upper conduction block 22, and an upper end surface of the lower contact piece F3 contacts with a lower end surface of the lower conduction block 23; the common power supply access terminal N comprises a plurality of common terminal wiring boards N1 fixedly arranged on the body 1, a first metal plate N2 is arranged at the front end of the common terminal wiring board N1, and the upper end surface of the first metal plate N2 and the lower end surface of the upper conduction block 22 are positioned on the same horizontal plane; the standby power supply access end R comprises a plurality of standby end access plates R1 arranged right below a common end wiring plate N1, the common end wiring plate N1 and the standby end access plates R1 are distributed up and down and are arranged in a one-to-one correspondence mode, a second metal plate R2 is arranged at the front end of the standby end access plate R1, and the lower end face of the second metal plate R2 and the upper end face of the lower conduction block 23 are located on the same horizontal plane.

Still further, the widths of the first metal plate N2, the second metal plate R2, the upper conductive block 22 and the lower conductive block 23 are kept consistent, the widths of the upper contact piece F2 and the lower contact piece F3 are kept consistent, the width of the upper contact piece F2 is larger than twice of the width of the first metal plate N2, and the distance between the first metal plate N2 and the second metal plate R2 is larger than the width of the first metal plate N2.

Furthermore, the driving device 4 includes a driving rod 41 fixedly mounted on the mounting plate 21, a roller 42 is fixedly mounted at the front end of the driving rod 41, the roller 42 is matched with a groove 44 formed on the cam 43, the cam 43 is fixedly mounted on the rotating shaft 45, the lower end of the rotating shaft 45 is connected with a motor 46, a wrench bayonet 47 is arranged at the upper end of the rotating shaft 45, a partition plate 48 is arranged at the upper end of the wrench bayonet 47, and a metal contact electrically connected with the circuit module device 5 is arranged on the partition plate 48.

More specifically, the circuit module device 5 includes a circuit module device 5 including a control module 50, a fire-fighting linkage module 51, a signal module 52, a manual/automatic control module 53, a main voltage detection module 54, a standby voltage detection module 55, a generator power supply module 56, a generator start module 57, a delay module 58, a disconnection switch module 59, and a display module X, the disconnection switch module 59 is provided in two, and is electrically connected to a main power supply line and a sub voltage line, respectively, the sub voltage line is electrically connected to a generator in an external space, the control module 50 is electrically connected to the delay module 58, the fire-fighting linkage module 51, the signal module 52, the main voltage detection module 54, the standby voltage detection module 55, the generator power supply module 56, the generator start module 57, the manual/automatic control module 53, and the display module X, and the disconnection switch module 59 is electrically connected to the driving device 4, the generator power module 56 is electrically connected with a DC24V storage battery in a generator in an external space, the manual/automatic control module 53 is connected with a metal contact of the partition plate 48 in a matching way in a manual mode, all phase lines and zero lines in power lines on two sides are respectively electrically connected with the main voltage detection module 54 and the standby voltage detection module 55, the driving device 4 is electrically connected with the generator power module 56, the generator starting module 57 is electrically connected with a generator in the external space, and therefore voltage detection is achieved by utilizing the modules to enable the power lines to be switched on and off.

Still further, the phase line in the external power supply circuit is provided with one, two or three, and the zero line is provided with one, so that the switch can be used under different power utilization conditions.

Further, a fire-fighting signal contact is arranged in the fire-fighting linkage module 51, and the fire-fighting signal contact is electrically connected with fire-fighting linkage equipment in an external space, so that the equipment is in a fire-fighting linkage state by utilizing the fire-fighting signal contact; the signal module 52 is provided with a main closing indication output contact and a standby closing indication output contact, and the main closing indication output contact and the standby closing indication output contact are electrically connected with the detection equipment in the external space, so that the equipment can be detected whether the main power supply and the standby power supply work normally or not by using the contacts.

Furthermore, a plurality of L ED indicating lamps are arranged in the display module X, and L ED indicating lamps respectively correspond to main power work, standby power work, fire-fighting linkage, main power failure and standby power failure, so that the display module X is utilized to indicate the working condition of equipment.

The operation principle is that when the device, the components and the structure are in a stop state in an initial state, a circuit breaking switch module 59 of a main power circuit is in a closed state, a circuit breaking switch module 59 of a standby power circuit is in an open state, a generator power module 56 is powered by a DC24V in a generator, a main voltage detection module 54 detects the power condition of the main power circuit, a standby voltage detection module 55 detects the power condition of the standby power circuit, a fire protection linkage module 51 functions in transmitting a fire protection linkage signal to a control module 50, the control module 50 transmits a main closing indication output signal and a standby closing indication output signal to a signal module 52 for communicating with detection equipment of external equipment, so that the detection equipment can detect whether the equipment is normally operated, a display module X displays each action state in the equipment in a L lamp mode, a manual/automatic control module 53 is used for switching a manual/automatic mode, and when the main power circuit is in a working standby circuit, the main power circuit is in a working state, the standby circuit, the main power circuit is in a standby circuit working circuit, the standby circuit, the main power circuit is in a standby circuit, the standby circuit is started, the standby circuit is in an overvoltage circuit, the standby circuit is started, the standby circuit is automatically, the standby circuit when the standby circuit is in an emergency, the standby circuit is started, the standby circuit is automatically, the standby circuit is in an emergency, the standby circuit is in an emergency, the emergency circuit is started, the emergency circuit is started, the emergency circuit is started, the emergency circuit is started, the emergency circuit is started, the emergency when the emergency circuit is started, the emergency circuit is closed, the emergency circuit is started, the emergency circuit is closed, the emergency circuit is automatically.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the body 1, the slide rail 11, the power selecting device 2, the mounting plate 21, the upper conduction block 22, the lower conduction block 23, the circular groove 24, the ball 25, the slide groove 26, the wiring device 3, the load inlet F, the access plate F1, the upper contact piece F2, the lower contact piece F3, the connection plate F4, the inlet terminal plate F5, the common power inlet N, the common terminal plate N1, the first metal plate N2, the backup power inlet R, the backup terminal access plate R1, the second metal plate R2, the driving device 4, the driving lever 41, the roller 42, the cam 43, the rotating shaft 45, the motor 46, the wrench socket 47, the partition plate 48, the circuit module device 5, the control module 50, the fire fighting linkage module 51, the signal module 52, the manual/automatic control module 53, the main voltage detection module 54, the backup voltage detection module 55, the generator power module 56, the generator start module 57, the power selecting device 3, the, The terms delay module 58, cut-off switch module 59, display module X, etc., do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a FATSP dual supply automatic transfer switch, is including body (1) that is equipped with slide rail (11), its characterized in that: slide rail (11) in movable mounting have power selection device (2), power selection device (2) both sides be equipped with termination (3), just power selection device (2) remove the in-process, with termination (3) contact each other, power selection device (2) end-to-end connection have drive arrangement (4), drive arrangement (4) electric connection have circuit module device (5).

2. The FATSP dual-power automatic transfer switch of claim 1, wherein: power selection device (2) include with slide rail (11) mounting panel (21) of mutually supporting, mounting panel (21) upper end fixed mounting have a plurality of last switch-on blocks (22) that are the distribution of annular array, switch-on blocks (22) lower extreme one-to-one is provided with down switch-on blocks (23) on every, just lower switch-on blocks (23) fixed mounting in mounting panel (21) on, mounting panel (21) both sides still the symmetry be equipped with circular slot (24), every circular slot (24) in equal movable mounting have spheroid (25), just spheroid (25) with set up in body (1) on spout (26) mutually support.

3. The FATSP dual-power automatic transfer switch of claim 2, wherein: termination (3) including set up in body (1) one side load incoming end (F), body (1) opposite side still be equipped with common power supply incoming end (N), common power supply incoming end (N) lower extreme be equipped with stand-by power supply incoming end (R).

4. The FATSP dual-power automatic transfer switch of claim 3, wherein: the load access end (F) comprises a plurality of access plates (F1), each access plate (F1) comprises a connecting plate (F4) with an upper contact piece (F2) and a lower contact piece (F3) arranged at the upper end and the lower end respectively, an access end wiring plate (F5) is fixedly mounted on one side of the connecting plate (F4), the lower end face of the upper contact piece (F2) is in contact with the upper end face of the upper conduction block (22), and the upper end face of the lower contact piece (F3) is in contact with the lower end face of the lower conduction block (23); the common power supply access end (N) comprises a plurality of common end wiring boards (N1) fixedly arranged on the body (1), a first metal plate (N2) is arranged at the front end of each common end wiring board (N1), and the upper end surface of the first metal plate (N2) and the lower end surface of the upper conduction block (22) are positioned on the same horizontal plane; reserve power supply incoming end (R) include a plurality of set up in reserve end access plate (R1) under common end wiring board (N1), just common end wiring board (N1) with reserve end access plate (R1) distribute from top to bottom and the one-to-one sets up, reserve end access plate (R1) front end be equipped with second metal sheet (R2), just second metal sheet (R2) under the terminal surface with lower conduction block (23) up end be located same horizontal plane.

5. The FATSP dual-power automatic transfer switch of claim 4, wherein: the first metal plate (N2), the second metal plate (R2), the upper conducting block (22) and the lower conducting block (23) keep consistent in width, the upper contact piece (F2) and the lower contact piece (F3) keep consistent in width, the width of the upper contact piece (F2) is larger than twice of the width of the first metal plate (N2), and the distance between the first metal plate (N2) and the second metal plate (R2) is larger than the width of the first metal plate (N2).

6. The FATSP dual-power automatic transfer switch of claim 5, wherein: drive arrangement (4) including fixed mounting in mounting panel (21) on actuating lever (41), actuating lever (41) front end fixed mounting have roller bearing (42), roller bearing (42) and cam (43) on recess (44) that set up mutually support, cam (43) fixed mounting on pivot (45), pivot (45) lower extreme be connected with motor (46), pivot (45) upper end be equipped with spanner bayonet socket (47), spanner bayonet socket (47) upper end be equipped with baffle (48), just baffle (48) on be equipped with circuit module device (5) electric connection's metal contact.

7. The FATSP dual-power automatic transfer switch of claim 6, wherein: the circuit module device (5) comprises a circuit module device (5) which comprises a control module (50), a fire-fighting linkage module (51), a signal module (52), a manual/automatic control module (53), a main voltage detection module (54), a standby voltage detection module (55), a generator power supply module (56), a generator starting module (57), a time delay module (58), a circuit breaking switch module (59) and a display module (X), wherein the two circuit breaking switch modules (59) are respectively and electrically connected with a main power supply line and an auxiliary voltage line, the auxiliary voltage line is electrically connected with a generator in an external space, and the control module (50) is connected with the time delay module (58), the fire-fighting linkage module (51), the signal module (52), the main voltage detection module (54), the standby voltage detection module (55), the generator power supply module (56), The generator starting module (57), the manual/automatic control module (53) and the display module (X) are electrically connected, the circuit breaker module (59) is electrically connected with the driving device (4), the generator power module (56) is electrically connected with a DC24V storage battery in the generator in the external space, the manual/automatic control module (53) is matched and connected with the metal contact of the partition plate (48) in a manual mode, all phase lines and zero lines in the power supply lines on two sides are respectively and electrically connected with the main voltage detection module (54) and the standby voltage detection module (55), the driving device (4) is electrically connected with the generator power module (56), and the generator starting module (57) is electrically connected with a generator in an external space, so that voltage detection is realized by utilizing the modules to switch on and off a power supply circuit.

8. The FATSP dual-power automatic transfer switch of claim 7, wherein: one, two or three phase lines are arranged in the external power supply circuit, and one zero line is arranged, so that the switch can be used under different power utilization conditions.

9. The FATSP dual-power automatic transfer switch of claim 8, wherein: a fire-fighting signal contact is arranged in the fire-fighting linkage module (51) and is electrically connected with fire-fighting linkage equipment in an external space, so that the equipment is in a fire-fighting linkage state by utilizing the fire-fighting signal contact; the signal module (52) is internally provided with a main closing indication output contact and a standby closing indication output contact, and the main closing indication output contact and the standby closing indication output contact are electrically connected with detection equipment in an external space, so that the equipment can be detected whether a main power supply and a standby power supply work normally or not by utilizing the contacts.

10. The FATSP dual-power automatic transfer switch of claim 9, wherein a plurality of L ED indicators are installed in the display module (X), and the L ED indicators respectively correspond to main power operation, standby power operation, fire-fighting linkage, main power failure and standby power failure, so that the display module (X) is used to indicate the operation of the device.