An electrical cabinet alarm device

Abstract

The present invention relates to the technical field of alarm devices, and specifically relates to an electrical cabinet alarm device, which includes a housing, a rotating camera, a motor, a wire reel, a swinging assembly and an electromagnet; the motor is connected to the wire reel, a conductive connecting wire is wound on the wire reel, and the rotation of the motor drives the conductive connecting wire to pay out and reel in. The conductive connecting wire passes through a wire passing hole and is connected to the electrical cabinet; the swinging assembly includes a coil, a magnetic block, and a pipe parallel to the width direction of the door body; the alternating change of the energizing direction of the coil drives the movement of the magnetic block to achieve swinging. The electromagnet is energized to drive the electrical cabinet alarm device to adsorb on the door body, and the rotating camera takes high-definition photos of the position of the light change and its surroundings and then uploads them; the present invention drives the wire reel to rotate through the motor, so that the electrical cabinet alarm device can move vertically like a spider. Combined with the swinging assembly, it can swing like a pendulum. After swinging to a predetermined position, the electromagnet is energized to adsorb on the door body for high-definition photography, and the picture is uploaded after the alarm to facilitate the maintenance personnel to view the fault in advance.

Description

Technical Field

[0001] The present invention relates to the technical field of alarm devices, and particularly to an electrical cabinet alarm device. Background Art

[0002] Electrical cabinets are applicable to industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings, etc., and are used for power transmission, power distribution, and power conversion. When protecting existing electrical cabinets, various alarm devices will be installed to achieve the protection function and enhance the safety effect.

[0003] However, in the prior art, due to the large number of various circuit devices in the electrical cabinet, the space inside the electrical cabinet is narrow and there are many dead corners, resulting in false alarms; for example, due to occlusion, it is difficult for a rotating camera to judge places where electric sparks and electric arcs are generated, and only an ozone sensor can be used for assistance, which makes the already narrow space even smaller, and only a rough alarm can be generated and then wait for manual inspection, making it difficult to judge the problem in advance, thus resulting in low efficiency. Therefore, an electrical cabinet alarm device that can give a normal warning and actively find the fault location is needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide an electrical cabinet alarm device that can give a normal warning and actively find the fault location.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is:

[0006] An electrical cabinet alarm device for the alarm of an electrical cabinet, the electrical cabinet includes a cabinet body and a door body, and the door body is made of a material that can be adsorbed by a magnet; at the top of the inner wall of the electrical cabinet close to the door body, there is a connection point for power supply, and the connection point is aligned with the mid-width position of the door body;

[0007] The electrical cabinet alarm device includes a housing, a rotating camera, a communication module, a motor, a wire reel, a swinging assembly, and an electromagnet; the housing includes a front panel, a back panel, a top plate, and a bottom plate, the front panel is the side facing the inside of the cabinet, and the back panel is the side facing the door body; there is a wire passing hole on the top plate; the rotating camera is arranged on the side of the front panel away from the back panel, and the electromagnet is arranged on the back panel; the motor and the wire reel are connected to each other and are located in the housing close to the top plate, the motor drives the wire reel to rotate, a conductive connecting wire is wound on the wire reel, and the conductive connecting wire passes through the wire passing hole and is connected to the connection point to supply power to the electrical cabinet alarm device; the swinging assembly includes a coil, a magnetic block, and a pipe parallel to the width direction of the door body, and the pipe is fixed in the housing close to the bottom plate.

[0008] The initial position of the electrical cabinet alarm device is below the connection point. The rotating camera rotates downward to monitor the interior of the cabinet. When the rotating camera detects whether there is a brightness change in the video, if not, it does not act; if so, it sends an alarm through the communication module, then calculates the straight-line distance between the brightness change position and the rotating camera, and controls the rotation of the motor to drive the conductive connecting wire to pay out according to the straight-line distance. At the same time, the energizing direction of the coil alternates to drive the movement of the magnetic block to achieve swinging. When it swings close to the light change position, the electromagnet is energized to drive the electrical cabinet alarm device to adsorb on the door body. The rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module.

[0009] Preferably, the electrical cabinet alarm device further includes an infrared sensor, and the infrared sensor is arranged on the lower surface of the bottom plate;

[0010] The initial position of the electrical cabinet alarm device is below the connection point. The rotating camera rotates downward and the infrared sensor monitors the interior of the cabinet. It judges whether there is an infrared change in the infrared sensor. If not, it does not act; if so, it calculates the straight-line distance between the infrared change position and the rotating camera, and controls the rotation of the motor to drive the conductive connecting wire to pay out according to the straight-line distance. At the same time, the energizing direction of the coil alternates to drive the electrical cabinet alarm device to swing. When it swings close to the infrared change position, the electromagnet is energized and the electrical cabinet alarm device adsorbs on the door body. The rotating camera takes high-definition photos of the infrared change position and its surroundings and uploads them through the communication module.

[0011] Preferably, the electrical cabinet alarm device further includes an infrared camera, and the infrared camera is arranged on the panel;

[0012] The rotating camera and the infrared camera respectively take high-definition photos of the infrared change position and its surroundings and upload them through the communication module.

[0013] Preferably, the electrical cabinet alarm device further includes a fill light, and the fill light is arranged on the panel;

[0014] It is started when the rotating camera takes high-definition photos and stopped when the infrared camera takes high-definition photos.

[0015] Preferably, the electrical cabinet alarm device further includes a smoke sensor, the smoke sensor is arranged in the housing, and a plurality of air inlets are arranged on the housing.

[0016] Preferably, the electrical cabinet alarm device includes a patrol inspection operation, and the patrol inspection operation includes: when there is no brightness change and / or infrared change, the motor is controlled to rotate at a length of more than 10 cm to drive the conductive connection wire to pay out, and at the same time, the energizing direction of the coil changes alternately to drive the electrical cabinet alarm device to swing. When swinging to the three positions of the two highest points and the lowest point in the middle, the electromagnet is energized and the electrical cabinet alarm device is adsorbed on the door body. The rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module;

[0017] Two of the highest points are the highest points allowed for the electrical cabinet alarm device to swing when projected on the door body.

[0018] Preferably, the energizing direction of the coil changes alternately to drive the magnet block to move to achieve swinging, which further includes:

[0019] When the electrical cabinet alarm device hangs naturally, the coil is energized to make the magnet block hit in one direction, and then the power is immediately cut off to make the electrical cabinet alarm device start to swing in the hitting direction. When swinging to the high point and about to go down, the energizing direction of the coil is reversed to make the magnet block hit in the other direction to achieve acceleration, so that when swinging to the other side, the swinging height is higher, and this cycle continues until the highest point allowed for swinging is reached.

[0020] Preferably, after the rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module, the motor drives the wire reel to rotate to take in the wire and return to the initial position.

[0021] Preferably, a plurality of shock-absorbing blocks are arranged on the side of the back plate away from the panel;

[0022] Or the material of the back plate is a flexible material.

[0023] Preferably, the wire passing hole is polished.

[0024] The beneficial effects of the present invention are as follows: The motor drives the wire reel to rotate, enabling the electrical cabinet alarm device to move vertically like a spider. Combined with the swinging component, it can swing like a pendulum. After swinging to a predetermined position, the electromagnet is energized to adsorb on the door body, and a fixed shooting position is achieved for high-definition photographing. Then, the pictures are uploaded, which can facilitate maintenance personnel to view the faults in advance and thus improve work efficiency. At the same time, the electrical cabinet alarm device of the present application can cover most of the space inside the cabinet. The rotating camera can monitor the inside of the electrical appliance at the initial position. Even in the case of occlusion, the generation of electric sparks, arcs, and flames will cause brightness changes, and then the position of the brightness change is located. Although electric sparks, arcs, and even flames may disappear in a flash, they will leave charred marks. Therefore, an alarm is first issued, and then after the electrical cabinet alarm device arrives, high-definition photographing is performed on the position of the light change and its surroundings, which can well determine the type of fault. Thus, it is not necessary to arrange multiple sensors or various sensors. For example, when an arc breaks down the air to generate ozone, an additional ozone sensor is required for monitoring, while the present application can do without an ozone sensor, reducing the cost of sensors and the space layout requirements. The swinging component is arranged at the bottommost part of the shell, which can amplify the swinging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic structural diagram of an electrical cabinet alarm device according to a specific embodiment of the present invention installed in an electrical cabinet;

[0026] Figure 2 FIG. is a schematic diagram of the swinging of an electrical cabinet alarm device according to a specific embodiment of the present invention;

[0027] Figure 3 FIG. is a schematic structural diagram of an electrical cabinet alarm device according to a specific embodiment of the present invention from a first angle;

[0028] Figure 4 FIG. is a schematic structural diagram of an electrical cabinet alarm device according to a specific embodiment of the present invention from a second angle;

[0029] Figure 5 FIG. is a schematic structural diagram of an electrical cabinet alarm device according to a specific embodiment of the present invention from a third angle;

[0030] Reference Numerals: 1, electrical cabinet; 11, cabinet body; 12, door body; 13, connection point; 2, electrical cabinet alarm device; 201, shell; 2011, front panel; 2012, back panel; 2013, top plate; 2014, bottom plate; 2015, wire passing hole; 202, rotating camera; 203, motor; 204, wire reel; 205, swinging component; 206, electromagnet; 207, infrared sensor; 208, infrared camera; 209, fill light; 210, smoke sensor; 211, air inlet; 212, shock absorber; 3, highest point. Detailed implementation manners

[0031] To describe in detail the technical content, achieved objectives and effects of the present invention, the following is described in conjunction with the implementation manners and with reference to the accompanying drawings.

[0032] Please refer to Figures 1 to 5 , an electrical cabinet alarm device 2 for alarming an electrical cabinet 1, the electrical cabinet 1 including a cabinet body 11 and a door body 12, the door body 12 being made of a material that can be adsorbed by a magnet; at the top of the inner wall of the electrical cabinet near the door body 12, there is a connection point 13 for power supply, and the connection point 13 is aligned with the mid-width position of the door body 12;

[0033] The electrical cabinet alarm device 2 includes a housing 201, a rotating camera 202, a communication module, a motor 203, a wire reel 204, a swinging assembly 205 and an electromagnet 206; the housing 201 includes a front panel 2011, a back panel 2012, a top panel 2013 and a bottom panel 2014, the front panel 2011 being on the side facing the inside of the cabinet body 11, and the back panel 2012 being on the side facing the door body 12; a wire passing hole 2015 is provided on the top panel 2013; the rotating camera 202 is arranged on the side of the front panel 2011 away from the back panel 2012, and the electromagnet 206 is arranged on the back panel 2012; the motor 203 and the wire reel 204 are connected to each other and are located in the housing 201 near the top panel 2013, the motor 203 drives the wire reel 204 to rotate, a conductive connecting wire is wound around the wire reel 204, and the conductive connecting wire passes through the wire passing hole 2015 and is connected to the connection point 13 to supply power to the electrical cabinet alarm device 2; the swinging assembly 205 includes a coil, a magnetic block, and a pipe parallel to the width direction of the door body 12, and the pipe is fixed in the housing 201 near the bottom panel 2014;

[0034] The initial position of the electrical cabinet alarm device 2 is below the connection point 13, and the rotating camera 202 rotates downward to monitor the inside of the cabinet body 11. When the rotating camera 202 obtains whether there is a brightness change in the video, if not, it does not act; if so, it sends an alarm through the communication module, then calculates the straight-line distance between the brightness change position and the rotating camera 202, and controls the rotation of the motor 203 to drive the conductive connecting wire to pay out according to the straight-line distance. At the same time, the direction of the current passing through the coil changes alternately to drive the magnetic block to move and swing. When swinging to near the light change position, the electromagnet 206 is energized to drive the electrical cabinet alarm device 2 to adsorb on the door body 12, and the rotating camera 202 takes a high-definition photo of the light change position and its surroundings and uploads it through the communication module.

[0035] As can be seen from the above description, the motor 203 drives the wire reel 204 to rotate, enabling the electrical cabinet alarm device 2 to perform vertical movement like a spider. Combined with the swing assembly 205 that can swing like a pendulum, after swinging to a predetermined position, the electromagnet 206 is energized and adsorbed on the door body 12, and a fixed shooting position is achieved for high-definition photographing. Then, the picture is uploaded, which can facilitate maintenance personnel to view the faults in advance and thus improve work efficiency. At the same time, the electrical cabinet alarm device 2 of the present application can cover most of the space inside the cabinet body 11. The rotating camera 202 can monitor the inside of the electrical appliance at the initial position. Even when occlusion occurs, the generation of electric sparks, arcs, and flames will cause brightness changes, and then the position of the brightness change is located. Although electric sparks, arcs, and even flames may disappear in a flash, they will leave charred marks. Therefore, an alarm is first issued, and then after the electrical cabinet alarm device 2 arrives, high-definition photographing is performed on the position of the light change and its surroundings, which can well determine the type of fault. Thus, it is not necessary to arrange multiple sensors or various sensors. For example, when an arc breaks down the air to generate ozone, an additional ozone sensor is required for monitoring, while the present application can do without an ozone sensor, reducing the cost of sensors and the space layout requirements. The swing assembly 205 is arranged at the bottommost part inside the housing 201, which can amplify the swing effect.

[0036] Further, the electrical cabinet alarm device 2 further includes an infrared sensor 207, and the infrared sensor 207 is arranged on the lower surface of the bottom plate 2014;

[0037] The initial position of the electrical cabinet alarm device 2 is below the connection point 13. The rotating camera 202 rotates downward and the infrared sensor 207 monitors the inside of the cabinet body 11 to determine whether there is an infrared change in the infrared sensor 207. If not, it does not act. If so, the straight-line distance between the infrared change position and the rotating camera 202 is calculated, and the motor 203 is controlled to rotate to drive the conductive connecting wire to pay out wire. At the same time, the energizing direction of the coil changes alternately to drive the electrical cabinet alarm device 2 to swing. When swinging close to the infrared change position, the electromagnet 206 is energized and the electrical cabinet alarm device 2 is adsorbed on the door body 12. After the rotating camera 202 takes high-definition photos of the infrared change position and its surroundings, they are uploaded through the communication module.

[0038] As can be seen from the above description, by adding an infrared sensor 207 at the bottom, since there is an overheating situation without the generation of electric sparks, arcs, and flames, the infrared sensor 207 is used to timely determine the problem. At the same time, high-definition photographing is performed using the camera. Since overheating cannot be detected by the high-definition camera, it can only be used as a way to photograph the fault point.

[0039] Further, the electrical cabinet alarm device 2 further includes an infrared camera 208, and the infrared camera 208 is arranged on the panel 2011;

[0040] After the rotating camera 202 and the infrared camera 208 take high-definition photos of the infrared change position and its surroundings respectively, they are uploaded through the communication module.

[0041] As can be seen from the above description, by adding the infrared camera 208, it can form a complement with the rotating camera 202. The rotating camera 202 captures natural light, and the infrared camera 208 captures temperature changes, which can further improve the fault recognition efficiency.

[0042] Further, the electrical cabinet alarm device 2 further includes a fill light 209, and the fill light 209 is arranged on the panel 2011;

[0043] It is started when the rotating camera 202 takes high-definition photos, and stops when the infrared camera 208 takes high-definition photos.

[0044] As can be seen from the above description, by setting the fill light 209, the photo-taking effect can be improved.

[0045] Further, the electrical cabinet alarm device 2 further includes a smoke sensor 210. The smoke sensor 210 is arranged inside the housing 201, and a plurality of air inlets 211 are arranged on the housing 201.

[0046] As can be seen from the above description, through the smoke sensor 210, since smoke may be generated due to overheating, and since there is a situation where some circuits are completely blocked, only the smoke sensor 210 can be used for supplementary detection.

[0047] Further, the electrical cabinet alarm device 2 includes a patrol operation, and the patrol operation includes: when there is no brightness change and / or infrared change, the motor 203 is controlled to rotate at intervals of more than 10 cm to drive the conductive connecting wire to pay out, and at the same time, the direction of the coil energization alternates to drive the electrical cabinet alarm device 2 to swing. When swinging to the three positions of the two highest points 3 and the lowest point in the middle, the electromagnet 206 is energized and the electrical cabinet alarm device 2 is adsorbed on the door body 12. After the rotating camera 202 takes high-definition photos of the light change position and its surroundings, they are uploaded through the communication module;

[0048] The two highest points 3 are the highest points 3 allowed for the projection of the electrical cabinet alarm device 2 on the door body 12 during swinging.

[0049] As can be seen from the above description, through the patrol operation, regular patrols can be carried out to discover problems in a timely manner.

[0050] Further, the coil energization direction alternating to drive the magnet block to move to achieve swinging further includes:

[0051] When the electrical cabinet alarm device 2 hangs naturally, the coil is energized to make the magnet block impact in one direction, and then the power is immediately cut off to make the electrical cabinet alarm device 2 start to swing in the impact direction. When it swings to the high point and is about to go down, the coil energizes in the opposite direction to make the magnet block impact in the other direction to achieve acceleration, and then when it swings to the other side, the swinging height is higher. This cycle repeats until the highest point 3 of the allowed swing is reached.

[0052] Furthermore, the rotating camera 202 takes high-definition photos of the light change position and its surroundings and uploads them through the communication module. After the upload is completed, the motor 203 drives the wire reel 204 to rotate and take in the wire to return to the initial position.

[0053] As can be seen from the above description, by returning to the initial position, continuous monitoring can be achieved.

[0054] Furthermore, a plurality of shock-absorbing blocks 212 are provided on the surface of the back plate 2012 away from the panel 2011;

[0055] Or the material of the back plate 2012 is a flexible material.

[0056] As can be seen from the above description, through the shock-absorbing blocks 212, the wear between the electromagnet 206 and the door body 12 can be avoided. By directly using the flexible material back plate 2012, the impact can be directly absorbed without the shock-absorbing blocks 212.

[0057] Furthermore, the wire passing hole 2015 is polished.

[0058] As can be seen from the above description, through the polishing treatment, the sharp edges are prevented from wearing the conductive connection wires.

[0059] Embodiment 1

[0060] An electrical cabinet alarm device 2 for the alarm of the electrical cabinet 1. The electrical cabinet 1 includes a cabinet body 11 and a door body 12. The door body 12 is made of a material that can be adsorbed by a magnet (such as an iron metal door body); at the top of the inner wall of the electrical cabinet close to the door body 12, there is a power supply connection point 13, and the connection point 13 is aligned with half of the width of the door body 12;

[0061] The electrical cabinet alarm device 2 includes a housing 201, a rotating camera 202, a communication module, a motor 203, a wire reel 204, a swing assembly 205, and an electromagnet 206; the housing 201 includes a front panel 2011, a back panel 2012, a top panel 2013, and a bottom panel 2014. The front panel 2011 faces the inside of the cabinet body 11, and the back panel 2012 faces the door body 12; a wire passing hole 2015 is provided on the top panel 2013; the rotating camera 202 is disposed on the side of the front panel 2011 away from the back panel 2012, and the electromagnet 206 is disposed on the back panel 2012; the motor 203 and the wire reel 204 are connected to each other and are located inside the housing 201 near the top panel 2013. The motor 203 drives the wire reel 204 to rotate. A conductive connecting wire is wound around the wire reel 204, and the conductive connecting wire passes through the wire passing hole 2015 and is connected to the connection point 13 to supply power to the electrical cabinet alarm device 2; the swing assembly 205 includes a coil, a magnetic block, and a pipe parallel to the width direction of the door body 12. The pipe is fixed inside the housing 201 near the bottom panel 2014.

[0062] The initial position of the electrical cabinet alarm device 2 is below the connection point 13. The rotating camera 202 rotates downward to monitor the inside of the cabinet body 11. When the rotating camera 202 detects whether there is a brightness change in the video, if not, it does not act. If so, after sending an alarm through the communication module, it calculates the straight-line distance between the brightness change position and the rotating camera 202, and controls the rotation of the motor 203 to drive the conductive connecting wire to pay out wire according to the straight-line distance. At the same time, the direction of the current passing through the coil changes alternately to drive the magnetic block to move and swing. When it swings to near the light change position, the electromagnet 206 is energized to drive the electrical cabinet alarm device 2 to adsorb on the door body 12, and the rotating camera 202 takes high-definition photos of the light change position and its surroundings and uploads them through the communication module.

[0063] A plurality of shock-absorbing blocks 212 are provided on the surface of the back panel 2012 away from the front panel 2011.

[0064] Embodiment 2

[0065] An electrical cabinet alarm device 2, the same parts as those in Embodiment 1 will not be described in detail again, and further includes:

[0066] The electrical cabinet alarm device 2 further includes an infrared sensor 207, and the infrared sensor 207 is disposed on the lower surface of the bottom panel 2014.

[0067] The initial position of the electrical cabinet alarm device 2 is below the connection point 13. The rotating camera 202 rotates downward and the infrared sensor 207 monitors the interior of the cabinet body 11 to determine whether there is an infrared change in the infrared sensor 207. If not, it does not act. If so, it calculates the straight-line distance between the infrared change position and the rotating camera 202, and controls the rotation of the motor 203 to drive the conductive connecting wire to pay out according to the straight-line distance. At the same time, the energizing direction of the coil changes alternately to drive the electrical cabinet alarm device 2 to swing. When it swings close to the infrared change position, the electromagnet 206 is energized and the electrical cabinet alarm device 2 is adsorbed on the door body 12. After the rotating camera 202 takes a high-definition photo of the infrared change position and its surroundings, it uploads through the communication module.

[0068] The electrical cabinet alarm device 2 further includes an infrared camera 208, and the infrared camera 208 is arranged on the panel 2011;

[0069] After the rotating camera 202 and the infrared camera 208 respectively take high-definition photos of the infrared change position and its surroundings, they upload through the communication module.

[0070] Embodiment III

[0071] An electrical cabinet alarm device 2, the same parts as those in Embodiment I will not be described again, and further includes:

[0072] The electrical cabinet alarm device 2 includes a patrol operation, and the patrol operation includes: when there is no brightness change and / or infrared change, the motor 203 is controlled to rotate to drive the conductive connecting wire to pay out according to a length of more than 10 cm. At the same time, the energizing direction of the coil changes alternately to drive the electrical cabinet alarm device 2 to swing. When it swings to the three positions of the two highest points 3 and the lowest point in the middle, the electromagnet 206 is energized and the electrical cabinet alarm device 2 is adsorbed on the door body 12. After the rotating camera 202 takes a high-definition photo of the light change position and its surroundings, it uploads through the communication module;

[0073] Among them, the two highest points 3 are the highest points 3 allowed for the electrical cabinet alarm device 2 to swing when projected on the door body 12.

[0074] The energizing direction of the coil changes alternately to drive the magnetic block to move to achieve swinging, which further includes:

[0075] When the electrical cabinet alarm device 2 hangs naturally, the coil is energized to make the magnetic block hit in one direction, and then the power is immediately cut off to make the electrical cabinet alarm device 2 start to swing in the hitting direction. When it swings to the high point and is about to go down, the energizing direction of the coil is reversed to make the magnetic block hit in the other direction to achieve acceleration, so that when it swings to the other side, the swinging height is higher, and it repeats until it reaches the allowed highest point 3 of swinging.

[0076] After the rotating camera 202 takes high-definition photos of the position of the light change and its surroundings, it uploads the photos through the communication module. After the upload is completed, the motor 203 drives the wire reel 204 to rotate and wind up the wire to return to the initial position.

[0077] Among them, the difference is that

[0078] The material of the backplane 2012 is a flexible material and there is no shock absorber 212.

[0079] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. An electrical cabinet alarm device, used for alarming an electrical cabinet, characterized in that: The electrical cabinet comprises a cabinet body and a door body, wherein the door body is made of a material that can be adsorbed by a magnet; the electrical cabinet has a power supply connection point at the top of the inner wall close to the door body, and the connection point is aligned with a half position of the width of the door body; The electrical cabinet alarm device comprises a shell, a rotating camera, a communication module, a motor, a cable reel, a swinging assembly and an electromagnet; the shell comprises a panel, a back panel, a top panel and a bottom panel, the panel is a side facing the inside of the cabinet, and the back panel is a side facing the door body; a threading hole is arranged on the top panel; the rotating camera is arranged on a side of the panel away from the back panel, and the electromagnet is arranged on the back panel; the motor and the cable reel are connected to each other and are located in the shell near the top panel, the motor drives the cable reel to rotate, a conductive connecting wire is wound around the cable reel, and the conductive connecting wire passes through the threading hole and is connected to the connection point to supply power to the electrical cabinet alarm device; the swinging assembly comprises a coil, a magnetic block, and a pipe parallel to the width direction of the door body, and the pipe is fixed in the shell near the bottom panel; The initial position of the electrical cabinet alarm device is located below the connection point, and the rotating camera rotates downward to monitor the inside of the cabinet. When the rotating camera obtains whether there is a brightness change in the video, it will not take any action if not. If so, an alarm will be issued through the communication module, and the straight-line distance between the brightness change position and the rotating camera will be calculated. The motor rotation is controlled according to the straight-line distance to drive the conductive connecting wire to release. At the same time, the coil power-on direction is alternately changed to drive the magnetic block to move and swing. When it swings to the position close to the light change position, the electromagnet is energized to drive the electrical cabinet alarm device to be adsorbed on the door body. The rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module.

2. The electrical cabinet alarm device according to claim 1, characterized in that: The electrical cabinet alarm device further comprises an infrared sensor, which is arranged on the lower surface of the bottom plate; The initial position of the electrical cabinet alarm device is below the connection point. The rotating camera rotates downward and monitors the inside of the cabinet with the infrared sensor to determine whether an infrared change occurs on the infrared sensor. If not, it does not act. If so, the straight-line distance between the infrared change position and the rotating camera is calculated, and the motor is controlled to rotate according to the straight-line distance to drive the conductive connecting wire to release. At the same time, the coil power-on direction changes alternately to drive the electrical cabinet alarm device to swing. When it swings close to the infrared change position, the electromagnet is energized and the electrical cabinet alarm device is adsorbed on the door body. The rotating camera takes high-definition photos of the infrared change position and its surroundings and uploads them through the communication module.

3. The electrical cabinet alarm device according to claim 2, characterized in that: The electrical cabinet alarm device further comprises an infrared camera, which is arranged on the panel; The rotating camera and the infrared camera take high-definition photos of the infrared change position and its surroundings and upload them through the communication module.

4. The electrical cabinet alarm device according to claim 3, characterized in that: The electrical cabinet alarm device further comprises a fill light, and the fill light is arranged on the panel; It starts when the rotating camera takes high-definition photos, and stops when the infrared camera takes high-definition photos.

5. The electrical cabinet alarm device according to claim 2, characterized in that: The electrical cabinet alarm device further comprises a smoke sensor, wherein the smoke sensor is arranged in a shell, and a plurality of air inlets are arranged on the shell.

6. The electrical cabinet alarm device according to claim 1, characterized in that: The electrical cabinet alarm device includes an inspection action, which includes: when there is no brightness change and / or infrared change, the motor is controlled to rotate to drive the conductive connecting wire to release the wire according to the length of more than 10 cm each time, and the coil power supply direction is alternately changed to drive the electrical cabinet alarm device to swing. When it swings to the two highest points and the lowest point in the middle, the electromagnet is powered on and the electrical cabinet alarm device is adsorbed on the door body. The rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module; The two highest points are the highest points where the electrical cabinet alarm device is allowed to swing when projected onto the door body.

7. The electrical cabinet alarm device according to claim 6, characterized in that: The alternating change of the coil energization direction drives the magnetic block to move and realize the swing further includes: When the alarm device of the electrical cabinet droops naturally, the coil is energized to cause the magnetic block to hit in one direction, and then the power is immediately cut off to cause the alarm device of the electrical cabinet to start swinging in the direction of the impact. When it swings to the highest point and is about to go down, the coil is energized in the opposite direction to cause the magnetic block to hit in the other direction to accelerate, and the cycle is repeated until the highest point allowed for swinging is reached.

8. The electrical cabinet alarm device according to claim 1, characterized in that: The rotating camera takes high-definition photos of the light change position and its surroundings and uploads them through the communication module. After the upload is completed, the motor drives the winding reel to rotate and retract the wire back to the initial position.

9. The electrical cabinet alarm device according to claim 1, characterized in that: A plurality of shock absorbing blocks are arranged on a surface of the back plate away from the panel; Alternatively, the back plate is made of a flexible material.

10. The electrical cabinet alarm device according to claim 1, characterized in that: The threading holes are polished.

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