Electric appliance monitoring equipment and method

By designing electrical monitoring equipment including components such as voltmeters, amperometers, electromagnets, etc., the problem that existing equipment cannot be powered off when circuit failure is performed is solved, and the functions of automatic power off and alarm reminder are realized, protecting the electrical appliances and facilitating the disassembly and assembly of the equipment.

CN119556038AActive Publication Date: 2025-03-04威海双城电气有限公司
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Patent Information

Application Number
CN202411793718.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-03-04
Estimated Expiration
2044-12-09

AI Technical Summary

Technical Problem

Existing installed electrical monitoring equipment can only record data and issue alarms when detecting circuit failures, and cannot be powered off, which may cause electrical appliances to be damaged.

Method used

An electrical monitoring device is designed, including power-on components and installation components. The power-on assembly includes a voltmeter, an amp, an electromagnet, a magnetic plate and a flexible cardboard, which can automatically power off and alarm when a circuit failure is detected.

Benefits of technology

It realizes automatic power outage when a circuit failure occurs, protects electrical appliances from damage, and reminds staff to perform maintenance through alarms. At the same time, the equipment is designed to facilitate disassembly and assembly, avoiding irreversible damage to the installation point by frequent disassembly and assembly.

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Abstract

The invention discloses an electric appliance monitoring device and method, and relates to the technical field of electric appliance monitoring equipment.The electric appliance monitoring device comprises a shell and a power-on assembly, the power-on assembly is arranged in the middle of the shell, and the power-on assembly comprises a connecting groove, a clamping groove, a flexible clamping plate, a clamping block, a connector, a power connection column, an isolation frame, a through groove, a connecting spring, a magnetic suction plate, a power connection block and a power connection groove; connecting grooves are symmetrically formed in the front side and the rear side of one side of the shell, clamping grooves are symmetrically formed in the peripheries of the connecting grooves, flexible clamping plates are symmetrically and fixedly connected to the front side and the rear side of the inner wall of the shell, and clamping blocks are connected into the clamping grooves in a clamped mode. When the device is used, the device can be conveniently disassembled and assembled, so that the device is conveniently overhauled, irreversible damage to a mounting point caused by frequent disassembly and assembly can be avoided, and in the using process, voltage and current in a circuit can be monitored, and an electric appliance can be powered off and an alarm is given out when abnormity occurs.
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Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliance monitoring equipment, and in particular to an electrical appliance monitoring equipment and method. Background Art

[0002] Electrical monitoring equipment is an instrument that monitors the operating status of the power system. It can be used to monitor various parameters in the power system, including voltage, current, power, frequency, temperature, humidity, etc. Electrical monitoring equipment plays a key role in ensuring the safe, reliable and efficient operation of the electrical system, and provides data support for safety management, fault diagnosis, energy efficiency optimization, equipment maintenance and other tasks. It is an indispensable and important tool for modern electrical safety management. According to its usage method, it can be divided into installed type and external type.

[0003] Existing installed electrical appliance monitoring equipment, during use, if it detects a circuit fault such as a surge in external input voltage or circulating current, most of them can only record the detection data and issue an alarm, but will not cut off the power to the appliance, which may cause the appliance to be damaged due to the circuit fault.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an electrical appliance monitoring device and method are proposed. Summary of the invention

[0005] The object of the present invention is to provide an electrical appliance monitoring device and method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrical monitoring device, comprising a shell and a power-on component, wherein the power-on component is arranged in the middle of the shell, and the power-on component comprises a connecting groove, a clamping groove, a flexible clamping plate, a clamping block, a joint, a power-on column, an isolation frame, a through groove, a connecting spring, a magnetic plate, a power-on column and a power-on groove, wherein the connecting grooves are symmetrically provided on the front and back sides of one side of the shell, and the clamping grooves are symmetrically provided around the connecting groove, the flexible clamping plate is symmetrically fixedly connected on the front and back sides of the inner wall of the shell, the clamping block is clamped and connected in the clamping groove, and the joint is fixedly connected between the clamping blocks, the power-on column is fixedly connected in the connecting groove, the middle part of one side of the shell is fixedly connected to the isolation frame, and the middle part of the isolation frame is provided with a through groove, the connecting springs are symmetrically fixedly connected on the front and back sides of one side of the isolation frame, and the other end of the connecting spring is fixedly connected to the magnetic plate, the power-on block is fixedly connected to the middle part of the magnetic plate, and the power-on grooves are symmetrically provided on the front and back sides of the power-on block.

[0007] Furthermore, the power-on component also includes a voltmeter and an ammeter, the front portion of the isolation frame is fixedly connected with the voltmeter, and the rear portion of the isolation frame is fixedly connected with the ammeter.

[0008] Furthermore, the snap-in groove is L-shaped, the connector is snap-connected with the electrical post, the connector is respectively connected to an electrical appliance and a power source, and the voltmeter and ammeter are both connected to the electrical post.

[0009] Furthermore, the electrical connection block is slidably connected to the electrical connection column through the electrical connection slot, and the electrical connection block is slidably connected to the isolation frame through the through slot, and the magnetic attraction plate is elastically connected to the isolation frame through a connecting spring.

[0010] Furthermore, a mounting assembly is provided on one side of the shell, an electromagnet is fixedly connected to one side of the inner part of the shell, a display is provided in the middle of a side of the shell away from the mounting assembly, and a warning device is provided at the lower part of a side of the shell away from the mounting assembly.

[0011] Furthermore, the mounting assembly includes a mounting groove and a first contact point. The mounting grooves are symmetrically provided on the front and rear sides of the other side of the housing, and the first contact point is fixedly connected in the mounting groove.

[0012] Furthermore, the installation assembly also includes an installation frame, an installation cavity, an installation spring and an installation plate. The installation frame is arranged on the outer side of the same side of the shell, and the installation cavities are symmetrically opened on the front and back sides of the inner wall of the installation frame. The installation spring is fixedly connected in the installation cavity, and the other end of the installation spring is fixedly connected to the installation plate.

[0013] Furthermore, four mounting grooves and mounting cavities are provided, and the mounting plate is slidably connected to the shell through the mounting grooves, the mounting plate is slidably connected to the mounting frame through the mounting cavity, and the mounting plate is elastically connected to the mounting cavity through a mounting spring.

[0014] Furthermore, a fan is fixedly connected to the lower inner portion of the shell, a shielding cover is arranged on the outer side of the fan, and a detection mechanism is arranged on the upper portion of the shell.

[0015] Furthermore, the method for using the electrical appliance monitoring device comprises the following steps:

[0016] S1: First fix the mounting frame around the appliance, then connect the appliance and power supply to the housing;

[0017] S2: Place the housing into the installation frame, power on the appliance, and the electromagnet will suck the installation plate into the installation slot to fix the installation frame;

[0018] S3: During use, if there is a surge in current or voltage, the suction force of the electromagnet will increase, and the appliance can be powered off and an alarm will be issued at the same time;

[0019] S4: During use, the fan can cool down the inside of the equipment, and the detection mechanism can monitor the temperature, humidity and dust index of the external environment.

[0020] The present invention provides an electrical appliance monitoring device and method, which have the following beneficial effects: when in use, the device can be conveniently disassembled and assembled, thereby conveniently inspecting and repairing the device, and irreversible damage to the installation point caused by frequent disassembly and assembly can be avoided. During use, the voltage and current in the circuit can be monitored, and when an abnormality occurs, the electrical appliance can be powered off and a warning can be issued.

[0021] 1. During the use of the present invention, the voltmeter and the ammeter can monitor the input voltage and the circulating current of the electrical appliance during operation, and display the voltage and current data on the display in real time. When a circuit failure occurs in the power supply or the electrical appliance, the external input voltage or the circulating current will surge, which increases the suction force of the electromagnet on the magnetic suction plate and the mounting plate. The mounting plate slides in the mounting groove under the suction force and presses on the first contact point, so that the alarm device sounds an alarm to remind the staff to inspect the power supply or the electrical appliance according to the voltage and current conditions. At the same time, the magnetic suction plate moves to the flexible card plate under the suction force, driving the connecting block to slide in the through groove, so that the connecting column is separated from the connecting groove and the connecting spring is stretched, and the electrical appliance is repaired. When the power is cut off, when the magnetic plate contacts the flexible card plate, the flexible card plate will be pressed to deform first. After the magnetic plate passes through the flexible card plate, the flexible card plate will return to its original state. Under the suction force of the electromagnet and the elastic force of the connecting spring, the flexible card plate can limit the magnetic plate, thereby ensuring the power-off state of the appliance to avoid personal injury caused by sudden power-on during maintenance. When the circuit returns to normal, the suction force of the electromagnet decreases, and the connecting spring can make the magnetic plate break through the flexible card plate and reset, so that the connecting column enters the connecting slot again, restoring power supply, and allowing the appliance to continue to operate normally. In summary, during use, the input voltage and circulating current can be monitored, and the appliance can be powered off when a circuit fault occurs, and the staff can be reminded to perform maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the exploded structure of the energized components of an electrical appliance monitoring device of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall three-dimensional structure of an electrical appliance monitoring device of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall side view structure of an electrical appliance monitoring device of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional front view structure of an electrical appliance monitoring device of the present invention;

[0026] Figure 5 A schematic diagram of a half-section three-dimensional structure of an electrical appliance monitoring device of the present invention;

[0027] Figure 6 The present invention is a schematic diagram of the exploded structure of the installation components of an electrical appliance monitoring device.

[0028] In the figure: 1. shell; 2. mounting assembly; 201. mounting slot; 202. first contact; 203. mounting frame; 204. mounting cavity; 205. mounting spring; 206. mounting plate; 3. electromagnet; 4. display; 5. alarm; 6. power-on assembly; 601. connecting slot; 602. snap-in slot; 603. flexible card board; 604. snap-in block; 605. connector; 606. connecting pole; 607. isolation frame; 608. through slot; 609. voltmeter; 610. ammeter; 611. connecting spring; 612. magnetic suction plate; 613. connecting block; 614. connecting slot; 7. fan; 8. shielding cover; 9. detection mechanism. DETAILED DESCRIPTION

[0029] See also Figures 1 to 6 The present invention provides a technical solution: an electrical appliance monitoring device and method, including a housing 1 and a power-on component 6, wherein the housing 1 is provided with a power-on component 6 in the middle, wherein the power-on component 6 includes a connecting groove 601, a clamping groove 602, a flexible clamping plate 603, a clamping block 604, a joint 605, a power-on column 606, an isolation frame 607, a through groove 608, a connecting spring 611, a magnetic plate 612, a power-on block 613 and a power-on groove 614, wherein the housing 1 has a connecting groove 601 symmetrically provided on both sides of the front and rear sides, and the connecting groove 601 has a clamping groove 602 symmetrically provided around the connecting groove 601, and the inner wall of the housing 1 has a flexible clamping plate 603 symmetrically provided on both sides of the front and rear sides. A card plate 603 is provided, a card block 604 is snap-connected in the card slot 602, and a connector 605 is fixedly connected between the card blocks 604, an electrical connection post 606 is fixedly connected in the connection slot 601, an isolation frame 607 is fixedly connected in the middle of one side of the shell 1, and a through slot 608 is opened in the middle of the isolation frame 607, connecting springs 611 are symmetrically fixedly connected on the front and rear sides of one side of the isolation frame 607, and a magnetic attraction plate 612 is fixedly connected to the other end of the connecting spring 611, an electrical connection block 613 is fixedly connected in the middle of the magnetic attraction plate 612, and electrical connection slots 614 are symmetrically opened on the front and rear sides of the electrical connection block 613.

[0030] See also Figures 1 to 6, the power-on component 6 also includes a voltmeter 609 and an ammeter 610, the front of the isolation frame 607 is fixedly connected with the voltmeter 609, and the rear of the isolation frame 607 is fixedly connected with the ammeter 610, the snap-in slot 602 is L-shaped, the connector 605 is snap-connected with the connecting post 606, the connector 605 is connected to the electrical appliance and the power supply respectively, the voltmeter 609 and the ammeter 610 are both connected to the connecting post 606, the connecting block 613 is snap-connected and slidably connected with the connecting post 606 through the connecting slot 614, and the connecting block 613 is slidably connected with the isolation frame 607 through the through slot 608, the magnetic suction plate 612 is elastically connected with the isolation frame 607 through the connecting spring 611, the other side of the shell 1 is provided with a mounting component 2, the inner side of the shell 1 is fixedly connected with an electromagnet 3, and the middle part of the side of the shell 1 away from the mounting component 2 is provided with a display 4, and the lower part of the side of the shell 1 away from the mounting component 2 is provided with a warning device 5;

[0031] The specific operation is as follows. During use, the voltmeter 609 and the ammeter 610 can monitor the input voltage and circulating current of the electrical appliance when it is running, and display the voltage and current data in real time on the display 4. When a circuit fault occurs in the power supply or the electrical appliance, the external input voltage or circulating current will surge, causing the electromagnet 3 to increase the suction force on the magnetic plate 612 and the mounting plate 206. Under the action of the suction force, the mounting plate 206 slides in the mounting groove 201 and presses on the first contact 202, causing the alarm 5 to sound an alarm, reminding the staff to inspect the power supply or electrical appliance according to the voltage and current conditions. At the same time, the magnetic plate 612 moves to the flexible card board 603 under the action of the suction force, driving the connecting block 613 to slide in the through groove 608, causing the connecting column 606 to detach from the connecting groove 614 and stretch the connecting spring 611, thereby repairing the electrical appliance. When the power is cut off, when the magnetic suction plate 612 contacts the flexible card plate 603, the flexible card plate 603 will be pressed to deform first. After the magnetic suction plate 612 passes through the flexible card plate 603, the flexible card plate 603 returns to its original state. Under the suction force of the electromagnet 3 and the elastic force of the connecting spring 611, the flexible card plate 603 can limit the magnetic suction plate 612, thereby ensuring the power-off state of the electrical appliance to avoid personal injury caused by sudden power-on during maintenance. When the circuit returns to normal, the suction force of the electromagnet 3 decreases, and the connecting spring 611 can make the magnetic suction plate 612 break through the flexible card plate 603 and reset, so that the connecting column 606 re-enters the connecting slot 614, restores power supply, and allows the electrical appliance to continue to operate normally. In summary, when in use, the input voltage and circulating current can be monitored, and the electrical appliance can be powered off when a circuit fault occurs, and the staff can be reminded to perform maintenance.

[0032] See also Figures 1 to 3 and Figure 5The mounting assembly 2 includes a mounting groove 201 and a first contact 202. The mounting grooves 201 are symmetrically opened on the front and rear sides of the other side of the housing 1, and the first contact 202 is fixedly connected in the mounting groove 201. The mounting assembly 2 also includes a mounting frame 203, a mounting cavity 204, a mounting spring 205 and a mounting plate 206. The outer side of the same side of the housing 1 is provided with a mounting frame 203, and the inner wall of the mounting frame 203 is symmetrically opened on the front and rear sides. The mounting spring 205 is fixedly connected in the mounting cavity 204. The other end of the mounting spring 205 is fixedly connected with a mounting plate 206, the mounting grooves 201 and the mounting cavities 204 are each provided with four, and the mounting plate 206 is slidably connected to the housing 1 through the mounting grooves 201, the mounting plate 206 is slidably connected to the mounting frame 203 through the mounting cavity 204, and the mounting plate 206 is elastically connected to the mounting cavity 204 through the mounting spring 205, the lower part of the housing 1 is fixedly connected with a fan 7, and a shielding cover 8 is provided on the outer side of the fan 7, and a detection mechanism 9 is provided on the upper part of the housing 1;

[0033] The specific operation is as follows. During installation, first fix the installation frame 203 on the installation point by bolts, then align the clamping block 604 with the clamping groove 602 and insert the connector 605 into the connecting groove 601, so that the connector 605 is connected to the power post, and then rotate the connector 605 in the connecting groove 601 to make the clamping block 604 engage with the clamping groove 602 to fix the connector 605, and then put the housing 1 into the installation frame 203, turn on the power, and the electromagnet 3 generates suction to suck the installation plate 206 from the installation cavity 204 into the installation groove 201, so that the installation plate 206 passes through the installation groove 201 is engaged with the shell 1, and the installation spring 205 is stretched, so that the shell 1 can be fixed in the installation frame 203 to complete the installation. During maintenance, it is only necessary to cut off the power supply to make the electromagnet 3 lose the suction force on the mounting plate 206, thereby releasing the restriction of the mounting plate 206 on the shell 1, and the shell 1 can be easily removed without the need for cumbersome disassembly and assembly of the bolts, thereby avoiding irreversible damage to the installation point caused by frequent disassembly and assembly. In summary, when in use, the device can be easily disassembled and assembled, thereby conveniently maintaining the device, and avoiding irreversible damage to the installation point caused by frequent disassembly and assembly.

[0034] In summary, when the electrical appliance monitoring device and method are used, the installation frame 203 is first fixed to the installation point by bolts, and then the clamping block 604 is aligned with the clamping groove 602 and the connector 605 is inserted into the connecting groove 601, so that the connector 605 is connected to the power post, and then the connector 605 is rotated in the connecting groove 601 to make the clamping block 604 engage with the clamping groove 602 to fix the connector 605, and then the shell 1 is placed in the installation frame 203, and power is turned on. The electromagnet 3 generates suction to suck the installation plate 206 from the installation cavity 204 into the installation groove 201, so that the installation plate 206 is engaged with the shell 1 through the installation groove 201, and the installation spring 205 is stretched to fix the shell 1 on the installation frame 2. 03, the installation is completed. During maintenance, it is only necessary to cut off the power supply to make the electromagnet 3 lose its suction force on the mounting plate 206, release the restriction of the mounting plate 206 on the housing 1, and easily remove the housing 1 without complicated disassembly and assembly operations on the bolts, thereby avoiding irreversible damage to the mounting point caused by frequent disassembly and assembly. During use, the voltmeter 609 and the ammeter 610 can monitor the input voltage and circulating current of the electrical appliance during operation, and display the voltage and current data in real time on the display 4. When a circuit failure occurs in the power supply or the electrical appliance, the external input voltage or circulating current will surge, increasing the suction force of the electromagnet 3 on the magnetic suction plate 612 and the mounting plate 206. The mounting plate 206 is installed under the suction force. The magnetic plate 612 slides in the slot 201 and presses on the first contact 202, so that the alarm 5 sounds an alarm, reminding the staff to inspect the power supply or electrical appliance according to the voltage and current conditions. At the same time, the magnetic plate 612 moves to the flexible card board 603 under the action of suction, driving the connecting block 613 to slide in the through slot 608, so that the connecting column 606 is disengaged from the connecting slot 614 and the connecting spring 611 is stretched to cut off the power to the electrical appliance. When the magnetic plate 612 contacts the flexible card board 603, it will first press the flexible card board 603 to deform. After the magnetic plate 612 passes the flexible card board 603, the flexible card board 603 returns to its original state. Under the suction force of the electromagnet 3 and the elastic force of the connecting spring 611, the flexible card board 603 can The magnetic attraction plate 612 is restricted to ensure that the appliance is in a power-off state to avoid personal injury caused by sudden power-on during maintenance. When the circuit returns to normal, the suction force of the electromagnet 3 decreases, and the connecting spring 611 can make the magnetic attraction plate 612 break through the flexible card plate 603 and reset, so that the connecting column 606 re-enters the connecting slot 614, restores power supply, and allows the appliance to continue to operate normally. When in use, the fan 7 can send outside air into the equipment to dissipate heat inside the equipment. The detection mechanism 9 can monitor the temperature, humidity and dust index of the external environment, and the shielding cover 8 can shield the magnetic field to a certain extent to prevent the magnetic field generated by the electromagnet 3 from affecting the fan 7 and causing it to be unable to operate normally.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An electrical appliance monitoring device, characterized in that: The invention comprises a housing (1) and a power supply component (6), wherein the housing (1) is provided with a power supply component (6) in the middle thereof, wherein the power supply component (6) comprises a connection slot (601), a clamping slot (602), a flexible clamping plate (603), a clamping block (604), a joint (605), a power supply column (606), an isolation frame (607), a through slot (608), a connection spring (611), a magnetic plate (612), a power supply block (613) and a power supply slot (614), wherein the housing (1) has connection slots (601) symmetrically provided on both the front and rear sides of one side thereof, and clamping slots (602) symmetrically provided around the connection slot (601), and the flexible clamping plate (603) is symmetrically fixedly connected to both the front and rear sides of the inner wall of the housing (1) A snap-in block (604) is snap-connected in the snap-in slot (602), and a joint (605) is fixedly connected between the snap-in blocks (604); an electrical connection post (606) is fixedly connected in the connection slot (601); an isolation frame (607) is fixedly connected in the middle of one side of the housing (1), and a through slot (608) is provided in the middle of the isolation frame (607); a connection spring (611) is symmetrically fixedly connected on the front and rear sides of one side of the isolation frame (607), and a magnetic attraction plate (612) is fixedly connected to the other end of the connection spring (611); an electrical connection block (613) is fixedly connected in the middle of the magnetic attraction plate (612), and electrical connection slots (614) are symmetrically provided on the front and rear sides of the electrical connection block (613).

2. An electrical appliance monitoring device according to claim 1, characterized in that: The power supply component (6) further comprises a voltmeter (609) and an ammeter (610); the front of the isolation frame (607) is fixedly connected with the voltmeter (609), and the rear of the isolation frame (607) is fixedly connected with the ammeter (610).

3. An electrical appliance monitoring device according to claim 2, characterized in that: The snap-in groove (602) is L-shaped, the connector (605) is snap-connected with the electrical connection post (606), the connector (605) is respectively connected to an electrical appliance and a power source, and the voltmeter (609) and the ammeter (610) are both connected to the electrical connection post (606).

4. The electrical appliance monitoring device according to claim 1, characterized in that: The connecting block (613) is slidably connected to the connecting column (606) through the connecting groove (614), and the connecting block (613) is slidably connected to the isolation frame (607) through the through groove (608), and the magnetic attraction plate (612) is elastically connected to the isolation frame (607) through the connecting spring (611).

5. The electrical appliance monitoring device according to claim 1, characterized in that: A mounting assembly (2) is arranged on one side of the housing (1), an electromagnet (3) is fixedly connected to one side of the interior of the housing (1), a display (4) is arranged in the middle of a side of the housing (1) away from the mounting assembly (2), and a warning device (5) is arranged at the lower part of a side of the housing (1) away from the mounting assembly (2).

6. An electrical appliance monitoring device according to claim 5, characterized in that: The mounting assembly (2) comprises a mounting groove (201) and a first contact (202); the mounting grooves (201) are symmetrically provided on the front and rear sides of the other side of the housing (1); and the first contact (202) is fixedly connected in the mounting groove (201).

7. An electrical appliance monitoring device according to claim 6, characterized in that: The mounting assembly (2) further comprises a mounting frame (203), a mounting cavity (204), a mounting spring (205) and a mounting plate (206); the mounting frame (203) is arranged on the outer side of the same side of the housing (1); the mounting cavities (204) are symmetrically opened on the front and rear sides of the inner wall of the mounting frame (203); the mounting spring (205) is fixedly connected in the mounting cavity (204); and the other end of the mounting spring (205) is fixedly connected to the mounting plate (206).

8. An electrical appliance monitoring device according to claim 7, characterized in that: The mounting grooves (201) and mounting cavities (204) are each provided with four, and the mounting plate (206) is slidably connected to the housing (1) through the mounting grooves (201), the mounting plate (206) is slidably connected to the mounting frame (203) through the mounting cavity (204), and the mounting plate (206) is elastically connected to the mounting cavity (204) through the mounting spring (205).

9. The electrical appliance monitoring device according to claim 1, characterized in that: A fan (7) is fixedly connected to the lower inner portion of the housing (1), a shielding cover (8) is arranged on the outer side of the fan (7), and a detection mechanism (9) is arranged on the upper portion of the housing (1).

10. An electrical appliance monitoring method, used in an electrical appliance monitoring device according to any one of claims 1 to 9, characterized in that: The monitoring method comprises the following steps: S1: first fix the installation frame (203) around the electrical appliance, and then connect the electrical appliance and the power supply to the housing (1); S2: Place the housing (1) into the installation frame (203), and energize the electrical appliance. The electromagnet (3) can then suck the installation plate (206) into the installation slot (201) to fix the installation frame (203); S3: During use, if there is a surge in current or voltage, the suction force of the electromagnet (3) increases, and the electrical appliance can be powered off and a warning can be issued at the same time; S4: During use, the fan (7) can cool down the interior of the device, and the detection mechanism (9) can monitor the temperature, humidity and dust index of the external environment.

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