A temperature thermal imaging monitoring device for power distribution cabinet and power distribution cabinet

Abstract

The utility model discloses a temperature thermal imaging monitoring device for a power distribution cabinet and a power distribution cabinet, which solves the problems of cumbersome operation, heavy workload and potential omissions of personnel for handheld thermal imagers. The utility model specifically comprises an X-axis driving motor, an X-axis linear module arranged along the X-axis, a Y-axis driving motor, a Y-axis linear module arranged along the Y-axis, and a control unit arranged in the power distribution cabinet used; the X-axis driving motor is connected to the X-axis linear module and is used to drive the movement of a slider on the X-axis linear module; the Y-axis driving motor is connected to the Y-axis linear module and is used to drive the movement of a slider on the Y-axis linear module; the Y-axis linear module is vertically connected to the X-axis linear module through the slider on the X-axis linear module; a photoelectric temperature measuring unit is installed on the slider of the Y-axis linear module; the control unit is arranged outside the power distribution cabinet or inside the power distribution cabinet, and is respectively connected to the X-axis driving motor, the Y-axis driving motor and the photoelectric temperature measuring unit.

Description

Technical Field

[0001] The utility model relates to a temperature monitoring device, in particular to a temperature thermal imaging monitoring device for a power distribution cabinet and the power distribution cabinet. Background Art

[0002] For many years, power supply and power consumption units have listed the temperature inside the cabinet as an important monitoring indicator, and scientific and technological personnel have been exploring and researching dynamic measurement methods for abnormally high temperature points in distribution cabinets.

[0003] At present, handheld thermal imager monitoring is a relatively common measurement method. Monitoring personnel carry handheld thermal imagers to conduct regular temperature inspections when opening the cabinets. However, this method has a long interval and requires the cabinet doors to be opened and closed one by one and carefully measured. The operation is cumbersome and the workload is large. There is also the risk of missing individual temperature measurement points. There are also thermocouple patches attached to the surface of components to monitor the temperature on site, but the temperature measuring head in this method is cumbersome to arrange, and it is impossible to get close to key contacts and high-temperature areas. There is also a risk of attachment and falling off, and the probes affect each other, resulting in a high false alarm rate. There are also card-type infrared cameras adsorbed on the inner surface of the cabinet door, but due to its limited distance and narrow wide-angle field of view, the monitoring range is still small and cannot monitor large distribution cabinets. As a result, the use is limited by the size and model of various cabinets, and the scope of application is greatly limited. In addition, there are also some methods that position photoelectric monitoring probes by setting pull ropes and screws in the cabinet, but they all have the problems of occupying a large space and low positioning accuracy, and high energy consumption and noise, so they cannot be used on a large scale. Utility Model Content

[0004] The utility model aims to provide a temperature thermal imaging monitoring device for a distribution cabinet and a distribution cabinet, so as to solve the technical problems in the existing temperature monitoring method in the distribution cabinet, that is, the handheld thermal imager is cumbersome to operate and has a large workload and the risk of omission, the thermocouple patch cannot be close to the key contact and is easy to fall off, the infrared camera has a small monitoring range, and the photoelectric monitoring probe has low positioning accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A temperature thermal imaging monitoring device for a power distribution cabinet, wherein the width direction of the power distribution cabinet is defined as an X-axis direction, and the height direction is defined as a Y-axis direction;

[0007] The special feature is that it includes an X-axis driving motor, an X-axis linear module arranged along the X-axis, a Y-axis driving motor, a Y-axis linear module arranged along the Y-axis, and a control unit;

[0008] The X-axis drive motor, X-axis linear module, Y-axis drive motor and Y-axis linear module are all arranged in the power distribution cabinet used;

[0009] The X-axis driving motor is connected to the X-axis linear module and is used to drive the slider on the X-axis linear module to move;

[0010] The Y-axis driving motor is connected to the Y-axis linear module and is used to drive the slider on the Y-axis linear module to move;

[0011] The Y-axis linear module is vertically connected to the X-axis linear module through a slider on the X-axis linear module, so that the Y-axis linear module can slide along the X-axis direction;

[0012] A photoelectric temperature measuring unit is installed on the slider of the Y-axis linear module;

[0013] The control unit is arranged outside or inside the power distribution cabinet and is respectively connected to the X-axis drive motor, the Y-axis drive motor and the photoelectric temperature measurement unit.

[0014] Further, it also includes a mounting bracket;

[0015] The mounting bracket includes two supporting columns arranged along the Y-axis direction and parallel to each other, and a mounting crossbeam and a lower guard groove vertically mounted between the two supporting columns;

[0016] The two support columns are arranged on both sides of the cabinet body in the power distribution cabinet;

[0017] The X-axis linear module is installed on the mounting beam;

[0018] The upper end of the Y-axis linear module is connected to the slider of the X-axis linear module, and the lower end extends into the lower guard groove and is slidably connected to the nylon slide rail arranged in the lower guard groove.

[0019] Furthermore, the mounting crossbeam and the lower protection groove are detachably connected to the support column through mounting holes provided on the support column;

[0020] The support column is provided with a plurality of mounting holes along the Y-axis direction.

[0021] Furthermore, one end of the installation beam and the lower guard groove is connected to one of the support columns through a hinge and a hinge seat plate arranged on the hinge, and the other end of the installation beam and the lower guard groove is connected to the other support column through a lock.

[0022] Furthermore, the photoelectric temperature measurement unit includes a thermal imager, a multi-spectral photoelectric camera, a visible light camera, a fill light source, a warning light and a buzzer;

[0023] The thermal imager, multi-spectral photoelectric camera, visible light camera, fill light source, warning light and buzzer are respectively connected to the control unit.

[0024] Furthermore, the photoelectric temperature measurement unit also includes a purge nozzle;

[0025] The purge nozzle is connected to the air source via a hose;

[0026] The gas source is arranged outside the power distribution cabinet.

[0027] Furthermore, the X-axis linear module is installed on the inner side of the cabinet door of the power distribution cabinet through a guide rail mounting seat;

[0028] The upper end of the Y-axis linear module is connected to the slider of the X-axis linear module, and the lower end is fixedly connected to the cabinet door.

[0029] Furthermore, photoelectric switches connected to the control unit are respectively provided in the middle of the X-axis linear module and the Y-axis linear module.

[0030] Furthermore, the X-axis drive motor and the Y-axis drive motor are both servo motors or stepper motors.

[0031] A power distribution cabinet is special in that it comprises the above-mentioned temperature thermal imaging monitoring device for the power distribution cabinet.

[0032] Beneficial effects of the utility model:

[0033] 1. The utility model sets an X-axis linear module and a Y-axis linear module in the power distribution cabinet to drive the photoelectric temperature measurement unit to perform online monitoring of the components in the power distribution cabinet. There is no need for cumbersome operations, the workload is greatly reduced, and there is no risk of omission. In addition, the monitoring range is large, and the rectangular area that the sliders on the X-axis linear module and the Y-axis linear module can reach can be monitored, which greatly improves the monitoring accuracy.

[0034] 2. The temperature thermal imaging monitoring device provided by the utility model has a compact structure, various installation forms, easy installation and low maintenance cost.

[0035] 3. The utility model is also provided with a purge nozzle 13 and an air source, so that the device can be used inside an industrial power distribution cabinet with a relatively harsh environment to maintain image clarity and reduce maintenance time.

[0036] 4. The utility model can set up a timed automatic inspection through the control unit, and the thermal imager can set the field of view of the large measurement area to fully cover each temperature control point through the path, focusing on fixed-point inspection.

[0037] 5. The utility model uses X-axis linear module and Y-axis linear module track closure, which can self-lubricate and clean. When moving back and forth, it has good dust-proof and quiet effects, and is suitable for longer reciprocating measurement distances.

[0038] 6. The utility model adopts a high-sensitivity thermal imager for monitoring, which has high sensitivity in identifying abnormal temperature points and low false alarm rate.

[0039] 7. The temperature thermal imaging monitoring device provided by the utility model does not require manual supervision at all times, and can identify and alarm abnormal heat sources in real time and record the distribution data of each temperature measuring point. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural schematic diagram of a first embodiment of a power distribution cabinet of the utility model;

[0041] Figure 2 It is a structural schematic diagram of a temperature thermal imaging monitoring device for a power distribution cabinet in a first embodiment of the utility model;

[0042] Figure 3 It is a partial structural diagram of a temperature thermal imaging monitoring device for a power distribution cabinet in the first embodiment of the present utility model;

[0043] Figure 4 This is a schematic diagram of the structure of a photoelectric temperature measuring unit of a temperature thermal imaging monitoring device for a power distribution cabinet in the first embodiment of the present utility model;

[0044] Figure 5 This is a schematic diagram of the structure of the control unit in the first embodiment of the utility model;

[0045] Figure 6 This is a structural schematic diagram of a second embodiment of a power distribution cabinet of the utility model;

[0046] Figure 7 It is a structural schematic diagram of a third embodiment of a power distribution cabinet of the utility model.

[0047] Figure Number:

[0048] 1-mounting beam, 2-X-axis drive motor, 3-X-axis linear module, 4-Y-axis drive motor, 5-control unit, 5-1-overhead control box, 5-2 side-mounted control box, 5-3-control box, 6-Y-axis linear module, 9-thermal imager, 10-lower guard groove, 11-support column fixing block, 12-support column, 13-purge nozzle, 14-visible light camera, 15-hinge seat plate, 16-hinge, 400-guide rail mounting seat, 600-air source. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Embodiment 1:

[0051] This embodiment provides a power distribution cabinet, in which a temperature thermal imaging monitoring device is arranged. Figures 1 to 4 As shown, two sets of linear motion modules are fixed in the power distribution cabinet in a T-shaped arrangement, and the thermal imager 9 is installed on the corresponding slider to achieve real-time online monitoring of each set high-temperature area in the power distribution cabinet, and can record and display the temperature rise process in real time online, and accurately monitor the abnormal temperature position and temperature value in real time online. This embodiment is cleverly designed and practical, filling the gap in the industry of such equipment.

[0052] Definition: The width direction of the distribution cabinet is the X-axis, and the height direction is the Y-axis.

[0053] The core of this embodiment includes a thermal imager 9, an X-axis linear module 3, a Y-axis linear module 6, an X-axis drive motor 2, a Y-axis drive motor 4, a control unit 5 and a mounting bracket; the control unit 5 is used to control the movement of the X-axis drive motor 2 and the Y-axis drive motor 4, and display the temperature in the power distribution cabinet; the X-axis drive motor 2, the X-axis linear module 3, the Y-axis drive motor 4 and the Y-axis linear module 6 are all arranged in the power distribution cabinet; the X-axis drive motor 2 is connected to the X-axis linear module 3 to drive the movement of the slider on the X-axis linear module 3; the Y-axis drive motor 4 is connected to the Y-axis linear module 6 to drive the movement of the slider on the Y-axis linear module 6; the Y-axis linear module 6 is vertically connected to the X-axis linear module 3 through the slider of the X-axis linear module 3, so that the Y-axis linear module 6 can slide relative to the X-axis linear module 3 along the X-axis direction; a photoelectric temperature measuring unit is installed on the slider of the Y-axis linear module 6, which is used to measure the temperature of components in the power distribution cabinet; the mounting bracket includes two supporting columns 12 arranged along the Y-axis and parallel to each other, and a mounting beam 1 and a lower guard groove 10 vertically installed between the two supporting columns 12; the two supporting columns 12 are arranged on both sides of the cabinet body in the power distribution cabinet; the X-axis linear module 3 is installed on the mounting beam 1; the upper end of the Y-axis linear module 6 is connected to the slider of the X-axis linear module 3, and the lower end is located in the lower guard groove 10. The photoelectric temperature measurement unit includes a thermal imager 9, a multi-spectral photoelectric camera, a visible light camera 14, a fill light source, a warning light, a buzzer and a purge nozzle 13; the purge nozzle 13 is connected to an air source 600 arranged outside the power distribution cabinet through a hose; the control unit 5 is arranged outside the power distribution cabinet or inside the power distribution cabinet, and is respectively connected to the X-axis drive motor 2, the Y-axis drive motor 4, the thermal imager 9, the multi-spectral photoelectric camera, the visible light camera 14, the fill light source, the warning light and the buzzer.

[0054] The X-axis linear module 3 and the Y-axis linear module 6 are installed in the space between the power distribution cabinet and the electrical component installation plane, and are implemented in conjunction with a servo / stepper motor control drive combination solution. The X-axis drive motor 2 and the Y-axis drive motor 4 are both servo motors or stepper motors. The X-axis drive motor 2 and the Y-axis drive motor 4 drive the synchronous belts through the synchronous wheels at both ends of the X-axis linear module 3 and the Y-axis linear module 6 for precise positioning and reciprocating motion. The motion trajectory can be set according to different needs through the motion control parameters of the control unit 5, such as setting the control parameters such as the planning of each traversal point, the motion speed, the angle of rotation, the torque, and the obstacle avoidance area. The precise positioning is achieved through the programmable electronic control motion module. The duration and interval time between each action can be calculated and positioned according to the motion timing of the preset program, or the positioning can be performed according to the collected number of drive motor pulses and steps; the two sets of linear modules connected horizontally and vertically drive the connected motion slides to move freely in the planes of the X-axis and Y-axis coordinate axes through their respective motor-driven synchronous belts under the control of the programmable electronic control motion module, so that the movable slide can be accurately positioned at any point and move according to the set path in the X-axis line or the large rectangular plane area of ​​the X and Y axes. At the same time, the thermal imager 9 monitors the surface temperature distribution of electrical components in the set area or on the preset path in the distribution cabinet in real time, identifies abnormal points or areas of surface temperature of electrical components, saves records of the location and image, and issues real-time alarms, which can also be sent to the mobile device of the maintenance personnel to remind them to quickly handle the fault.

[0055] Taking the stepper motor linear module as an example, photoelectric switches are provided at both ends and the middle of the X-axis linear module 3 and the Y-axis linear module 6 for positioning zero point correction and motion stroke control. If it is a stepper motor driven linear module, the position of each stroke is controlled by calculating the number of driving pulses or the number of motor steps. At the same time, after each slider on the Y-axis linear module 6 is reset, the corresponding photoelectric switch recalibrates the zero point, so that a high position accuracy is achieved each time; if it is a speed regulating motor driven linear module, a pull rope displacement sensor can be added to implement the measurement of displacement offset value stroke closed-loop control, and can also perform timing action positioning according to the motion time; an adapter plate and a fixing hole are provided on the slider on the Y-axis linear module 6, for installing a thermal imager 9, a multi-spectral photoelectric camera, a visible light camera 14, a fill light source, a warning light, a buzzer and a purge nozzle 13 so that they can achieve accurate positioning of any point and movement according to the set path in the X-axis line or a large rectangular plane area of ​​the X and Y axes. Thus, a rectangular detection area is formed for various electrical components on the back panel of the power distribution cabinet or the rack rail, and a detour area can be set to avoid obstacles in the cabinet. The purge nozzle 13 and the external air source 600 can be used inside industrial power distribution cabinets with harsh environments to maintain image clarity and reduce maintenance time.

[0056] The mounting bracket of the lower guard groove includes two support columns 12 arranged along the Y axis and parallel to each other, and a mounting beam 1 and a lower guard groove 10 vertically mounted between the two support columns 12; the two support columns 12 are arranged on both sides of the cabinet body in the power distribution cabinet; the X-axis linear module 3 is mounted on the mounting beam 1; the upper end of the Y-axis linear module 6 is connected to the slider of the X-axis linear module 3, and the lower end is located in the lower guard groove 10. The two ends of the support column 12 are respectively provided with a support column fixing block 11, and the support column fixing block 11 is rigidly connected and fixed to the cabinet body of the power distribution cabinet. The fixing forms include: telescopic support foot cup, magnetic seat, high viscosity foot seat, welding and riveting. Some cabinet frames of the power distribution cabinet also come with array guide rail nuts or self-clamping nuts. At this time, the corresponding threaded hole fixing block can be used to directly fix them. The support column fixing block 11 and the support column 12 are connected by bolts. The support column 12 can be connected by multiple sections to adapt to different heights in the cabinet. At the same time, an array of mounting holes is opened on the support column along the Y-axis direction to fix the mounting beam 1; the tail end of the Y-axis linear module 6 contacts the nylon slide rail in the lower guard groove to protect the end of the Y-axis linear module 6 from being pushed or touched by external force, while increasing a certain degree of movement stiffness.

[0057] The control unit 5 includes: a host for motion control and monitoring sensor acquisition, a motor driver, a switching power supply, and an I / O port. The setting of its installation position takes into account the external space of the distribution cabinet, the internal structure, and the layout of components. Different external installation methods can be selected, such as Figure 5 As shown, there are two forms of top-mounted control box 5-1 and side-mounted control box 5-2, or if there is enough space in the distribution cabinet, the control box 5-3 can be directly placed inside the cabinet; the host for motion control and monitoring sensor acquisition can adopt the servo / stepper motor control driver known in the art.

[0058] The signal cable between the thermal imager 9 and the control unit 5 is connected in the form of a small drag chain (tank chain), a telescopic hose, a spring line with a winding box, which is convenient for winding and releasing the line during movement to avoid hooking.

[0059] This embodiment uses a thermal imager 9 that is positioned in coordination with a two-axis linear module and a control unit to monitor hot spots in abnormal hot zones, and can monitor the temperature of electrical components in the cabinet in real time during high-load operation of the power distribution cabinet, ensuring that the temperature of the components and their contacts is within a safe range, protecting the components inside the power distribution cabinet, and extending the service life. When an abnormal ambient temperature occurs in the cabinet, a signal can be sent to the fan and air conditioner in the cabinet in time to achieve a certain degree of automatic adjustment of the ambient temperature in the cabinet, and control the temperature of the highest temperature point within a certain range, thereby actively avoiding safety accidents.

[0060] This embodiment designs a monitoring device for a large power distribution cabinet for a heating furnace of a large enterprise. The size of the cabinet is 1200X2200X600mm, and its temperature monitoring range is 800X800mm. It uses a 30 synchronous wheel track with an X and Y axis travel range of 80cm*80cm in the cabinet. Its three-dimensional dimensions are 1000 width X1100 height X104 depth mm, and its module lead is 66mm. It is directly driven by 2 sets of 42 / 57 stepper motors, the slider load is 3Kg, and the material is a full high-strength aluminum alloy guide rail. The speed is set to the middle value of 0.25 meters / second. When the field of view coverage of the thermal imager 9 is 112mm long X 84mm wide and the distance is 150mm, the traversal path length is about 10 meters, and an automatic temperature inspection can be completed in 40 seconds. If the interval for the device to enter the next working cycle is set to half an hour, and this cycle is repeated over and over again, 48 automatic inspections and real-time online temperature monitoring can be completed in 24 hours, which fully meets the inspection standard requirements of the enterprise's equipment maintenance department.

[0061] In addition, a monitoring device was designed for a large double-door power distribution cabinet for heat treatment in a workshop. The cabinet dimensions are 2300X2500X500mm, and the 40 synchronous wheel track with an X and Y axis travel range of 180cm*180cm is used. Its three-dimensional dimensions are 2000 width X2100 height X124 depth mm, and its module lead is 75mm. It is directly driven by 2 sets of 80 stepper motors, with a load of 5Kg, and the material is a full high-strength aluminum alloy rail. The maximum inspection speed is set to the middle value of 0.5 meters per second, and the field of view of the thermal imager covers the following ranges: length 112mmX width 84mm, and distance 150mm. In this example, there are obstacles such as the cabinet fan, the heat dissipation fan and the air conditioner in the cabinet in the middle of the lower part of the cabinet detection plane. The thermal imager is unable to pass through the cabinet space at the top. Therefore, the host computer sets a detour trajectory according to the maximum envelope range of the obstacle. At the same time, the path is optimized and automatically adjusted. After executing trajectory control, the thermal imager forms an avoidance path in the shape of a Chinese character "J" and runs smoothly, meeting the initial design requirements.

[0062] There is also a monitoring device designed for a horizontal power distribution cabinet for a tube furnace in a certain enterprise. The size of the cabinet is 2950X1500X600mm, and the temperature monitoring area is 2.7 meters long and equidistantly distributed at the bottom of the cabinet. The wiring sockets (heat source) of the high-temperature electric heater are 5. This case uses a single X-axis synchronous belt linear module, (one-dimensional horizontal axis) 40 synchronous wheel track, the travel range is 280cm long, and its three-dimensional dimensions are 2900 long X87 high X60 wide mm. The module lead is 75mm, and it is directly driven by a set of 80 stepper motors, with a load of 5Kg, and the material is a full high-strength aluminum alloy rail. The maximum inspection speed is set to the middle value of 0.7 meters / second, the thermal imager is a narrow field model, and the monitoring distance is 350mm. In this case, for the five detection points in the cabinet, the thermal imager is installed on the horizontal track of the X-axis linear module, monitoring the target point in the lower part of the diagonal, and each monitoring point is preset to stay for 5 minutes (which is longer than the shortest heating time of the heat source), and automatically rotated in turn. After implementation, the monitoring device can achieve long-term safe operation under unattended conditions.

[0063] Embodiment 2:

[0064] like Figure 6 As shown, this embodiment is basically the same as the first embodiment, except that in this embodiment, the monitoring device is directly installed on the inner side of the cabinet door of the power distribution cabinet, and the X-axis linear module 3 and the Y-axis linear module 6 are fixed on the inner side of the cabinet door through the guide rail mounting seat 400, and the fixing forms include: bolt connection, magnetic adsorption, high viscosity bonding, welding and riveting, and welding nuts are also provided. This makes the monitoring device also applicable to most single-door power distribution cabinets.

[0065] Embodiment three:

[0066] like Figure 7 As shown, this embodiment is basically the same as the first embodiment, except that in this embodiment, a hinge 16 and a hinge seat plate 15 are provided on one of the support columns 12, and the mounting beam 1 and the lower guard groove 10 are connected to the corresponding support column 12 through the hinge 16, and are locked with the other support column 12, thus forming a side-opening valve structure (it can also be designed to open the hinge upward), which makes it more convenient to carry out large-scale maintenance and replacement of electrical components in the double-door distribution cabinet.

[0067] Embodiment 4:

[0068] A power distribution cabinet may include any one of the monitoring devices in embodiments one to three.

[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A temperature thermal imaging monitoring device for a power distribution cabinet, wherein the width direction of the power distribution cabinet is defined as the X-axis direction, and the height direction is defined as the Y-axis direction; Features: It comprises an X-axis driving motor (2), an X-axis linear module (3) arranged along the X-axis, a Y-axis driving motor (4), a Y-axis linear module (6) arranged along the Y-axis, and a control unit (5); The X-axis drive motor (2), the X-axis linear module (3), the Y-axis drive motor (4) and the Y-axis linear module (6) are all arranged in a power distribution cabinet used; The X-axis driving motor (2) is connected to the X-axis linear module (3) and is used to drive the slider on the X-axis linear module (3) to move; The Y-axis driving motor (4) is connected to the Y-axis linear module (6) and is used to drive the slider on the Y-axis linear module (6) to move; The Y-axis linear module (6) is vertically connected to the X-axis linear module (3) via a slider on the X-axis linear module (3), so that the Y-axis linear module (6) can slide along the X-axis direction; A photoelectric temperature measuring unit is installed on the slider of the Y-axis linear module (6); The control unit (5) is arranged outside or inside the power distribution cabinet and is respectively connected to the X-axis drive motor (2), the Y-axis drive motor (4) and the photoelectric temperature measurement unit.

2. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 1 is characterized in that: Also includes mounting brackets; The mounting bracket comprises two supporting columns (12) arranged along the Y-axis direction and parallel to each other, and a mounting crossbeam (1) and a lower protective groove (10) vertically mounted between the two supporting columns (12); The two support columns (12) are arranged on both sides of the cabinet body in the power distribution cabinet; The X-axis linear module (3) is installed on the mounting beam (1); The upper end of the Y-axis linear module (6) is connected to the slider of the X-axis linear module (3), and the lower end extends into the lower protective groove (10) and is slidably connected to the nylon slide rail arranged in the lower protective groove (10).

3. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 2 is characterized in that: The mounting crossbeam (1) and the lower protective groove (10) are detachably connected to the support column (12) via mounting holes provided on the support column (12); The support column (12) is provided with a plurality of mounting holes along the Y-axis direction.

4. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 2 is characterized in that: One end of the installation beam (1) and the lower guard groove (10) is connected to one of the support columns (12) via a hinge (16) and a hinge seat plate (15) arranged on the hinge (16), and the other end of the installation beam (1) and the lower guard groove (10) is connected to the other support column (12) via a lock.

5. The temperature thermal imaging monitoring device for a power distribution cabinet according to any one of claims 1 to 4, characterized in that: The photoelectric temperature measurement unit comprises a thermal imager (9), a multi-spectral photoelectric camera, a visible light camera (14), a fill light source, a warning light and a buzzer; The thermal imager (9), the multi-spectral photoelectric camera, the visible light camera (14), the fill light source, the warning light and the buzzer are respectively connected to the control unit (5).

6. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 5 is characterized in that: The photoelectric temperature measuring unit also includes a purge nozzle (13); The purge nozzle (13) is connected to the gas source (600) via a hose; The gas source (600) is arranged outside the power distribution cabinet.

7. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 1 is characterized in that: The X-axis linear module (3) is installed on the inner side of the door of the power distribution cabinet via a guide rail mounting seat (400); The upper end of the Y-axis linear module (6) is connected to the slider of the X-axis linear module (3), and the lower end is fixedly connected to the cabinet door.

8. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 1 is characterized in that: The X-axis linear module (3) and the Y-axis linear module (6) are respectively provided in the middle of a photoelectric switch connected to the control unit (5).

9. The temperature thermal imaging monitoring device for a power distribution cabinet according to claim 8, characterized in that: The X-axis drive motor (2) and the Y-axis drive motor (4) are both servo motors or stepper motors.

10. A power distribution cabinet, characterized in that: A temperature thermal imaging monitoring device for a power distribution cabinet comprising any one of claims 1-9.

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