Protective IGBT (Insulated Gate Bipolar Translator) power supply cabinet with internal temperature regulation and control mechanism

Abstract

The invention discloses a protective IGBT power supply cabinet with an internal temperature regulation and control mechanism, belongs to the field of power supply cabinets, and is used for solving the problems that precise heat dissipation is difficult to realize and self-adaptive adjustment of heat dissipation efficiency is difficult to realize aiming at internal temperature. According to the invention, data of internal interference factors and external interference factors during the use of the power supply cabinet are collected, corresponding control signals are obtained, the operation process of the power supply cabinet is comprehensively and efficiently supervised in the use process, corresponding early warning is sent to the supervision end, the protection capability of the power supply cabinet is effectively improved, and the safety of the power supply cabinet is improved. Meanwhile, through cooperative use of a heat insulation curtain, a heat dissipation groove and a draught fan, precise internal heat dissipation is achieved, more energy is saved, the internal heat dissipation efficiency is effectively improved, the influence of heat radiation of operation equipment on adjacent equipment is avoided, the opening degree of the heat dissipation groove is controlled through different air inflow of a second air bag, and the heat dissipation efficiency is improved. Therefore, the self-adaptive adjustment of the heat dissipation efficiency is realized aiming at the internal temperature.

Description

Technical Field

[0001] The invention relates to the field of power supply cabinets, and in particular to a protective IGBT power supply cabinet with an internal temperature control mechanism. Background Art

[0002] IGBT power cabinet is a device used to control and regulate high-power current. It is commonly used in industrial and power systems. It usually contains a large number of electronic components and electrical parts, such as IGBT modules, capacitors, inductors, power cables, etc. The traditional power box only has ventilation holes on the side of the box, and the gas circulation is poor. At the same time, some dust enters the power box through the ventilation holes, causing dust accumulation and damage to some parts in the power box.

[0003] In response to the above problems, a Chinese patent provides an IGBT power cabinet with a protective structure (publication number: CN216750935U). This patent uses a dust baffle and a fan to intercept dust in the incoming gas, avoid clogging of the mesh on the filter screen, and affect the exchange of gas in the box.

[0004] However, in the actual use of the above solution, only the bottom fan is used for unified heat dissipation. For a large IGBT power cabinet, multiple devices are often installed inside. Usually, each power device in the IGBT power cabinet may be designed to work independently or work together as part of the overall system as needed. When only some of the devices are working, the bottom fan is turned on at the same time, which undoubtedly causes energy waste and makes it difficult to achieve accurate heat dissipation inside the power cabinet.

[0005] In addition, the internal temperature of the power cabinet varies according to different usage conditions. The heat dissipation efficiency of the cooling fan is often fixed when it is working. It can meet the heat dissipation needs when the internal temperature is low, but it will be difficult to meet the heat dissipation needs when the internal temperature is high, which may easily cause the internal equipment to overheat and shut down. It is difficult to achieve adaptive adjustment of the heat dissipation efficiency according to the internal temperature.

[0006] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0007] The object of the present invention is to provide a protective IGBT power cabinet with an internal temperature control mechanism to solve the technical defects proposed by the background technology.

[0008] The object of the present invention can be achieved by the following technical scheme: a protective IGBT power supply cabinet with an internal temperature control mechanism, comprising a box body, a heat insulation curtain is movably installed in the box body, a plurality of heat insulation curtains are provided, the interior of the box body is divided into cavity one, cavity two and cavity three by the plurality of heat insulation curtains, and a control panel is fixedly installed on one side of the box body;

[0009] The inner walls of cavity one, cavity two and cavity three are all provided with heat dissipation grooves, and a temperature control component is movably installed inside the box. The temperature control component includes a movable plate, a connecting block and a movable rod. The movable plate is movably installed in the heat dissipation groove, a connecting block is fixedly installed at one end of the movable plate, and the movable rod is movably installed in the inner wall of the box, and the end of the connecting block away from the movable plate is movably connected to the movable rod.

[0010] Preferably, the temperature control assembly further comprises a motor 1 and a rotating rod, the output end of the motor 1 is fixedly connected to the rotating rod, a gear is fixedly installed at one end of the rotating rod, a gear block is fixedly installed on one side of the movable rod close to the gear, and the gear is meshed with the gear block;

[0011] A plurality of fans are fixedly installed on the top of the box body, a fixed tube is fixedly installed on the inner wall of the box body, a push rod is movably installed inside the fixed tube, carbon dioxide gas is filled between the push rod and the fixed tube, a push plate is fixedly installed on the top of the push rod, and an air bag is fixedly installed on the top of the push plate.

[0012] Preferably, airbag 2 is fixedly installed on the outer wall of the box body, airbag 1 is fixedly connected to airbag 2 through a pipeline, an electric control board is fixedly installed on one side of airbag 2, and an adjustment block is movably installed on the rotating rod through a thread, and the adjustment block is adapted to the position of the electric control board.

[0013] Preferably, a plurality of motors 2 are fixedly mounted on the box body, the number of motors 2 matches the number of thermal insulation curtains, a winding rod is fixedly mounted on the top of the box body, one end of the winding rod is fixedly connected to the output end of motor 2, one end of the thermal insulation curtain is fixedly connected to the winding rod, a counterweight is fixedly mounted on the end of the thermal insulation curtain away from the winding rod, a slide groove is provided on the inner wall of the box body, and both ends of the counterweight are movably mounted in the slide groove.

[0014] Preferably, a plurality of operating doors are fixedly installed on one side of the box body, a tank body is fixedly installed on the side of the box body away from the operating door, nozzles are fixedly installed in cavity one, cavity two and cavity three, the nozzles are fixedly connected to the tank body through pipelines, and the interior of the tank body is filled with carbon dioxide gas.

[0015] Preferably, a plurality of fixed blocks are fixedly installed on one side of the box body away from the operating door, the fixed blocks are located below motor 1, a movable groove is opened on the top of the fixed blocks, airbag 2 is fixedly installed in the movable groove, and the electric control board is movably installed in the movable groove.

[0016] Preferably, the control panel includes a comprehensive data acquisition unit, a work evaluation unit, a risk evaluation unit and a control unit;

[0017] The comprehensive data acquisition unit is used to collect the internal interference factor data and the external interference factor data of the power cabinet, the internal interference factor data includes the operation evaluation value, and the external interference factor data includes the environmental heat value, and sends the internal interference factor data and the external interference factor data to the work evaluation unit respectively;

[0018] After receiving the internal interference factor data and the external interference factor data, the work assessment unit immediately performs risk assessment and analysis operations on the internal interference factor data and the external interference factor data of the power cabinet, and sends the obtained signal to the risk assessment unit;

[0019] The risk assessment unit performs risk assessment after receiving the data from the work assessment unit, generates a risk signal according to the assessment result, sends the obtained risk signal to the control unit, and makes corresponding action instructions through the control unit control component.

[0020] Preferably, the analysis process of the working evaluation unit on the power cabinet is as follows:

[0021] Obtaining the operation evaluation value of the power cabinet in each sub-time period, the operation evaluation value represents the portion of the product value obtained after normalization of the operation parameters in the sub-time period that exceeds the stored preset threshold value, and the operation parameters represent the internal heat value;

[0022] The ambient thermal value of the power cabinet in each sub-time period is obtained. The ambient thermal value indicates the number of times that the value corresponding to the characteristic data of the power cabinet in the sub-time period exceeds the preset threshold. The characteristic data indicates the ambient thermal fluctuation value and air flow value of the power cabinet in the sub-time period.

[0023] Preferably, the risk assessment unit analyzes the power cabinet as follows:

[0024] The operation evaluation value and detection risk value of the power cabinet in each sub-time period are obtained, and the product value obtained after data normalization of the operation evaluation value and the detection risk value is marked as the dynamic risk assessment coefficient, and then the dynamic risk assessment coefficient Pi of the equipment in each sub-time period is obtained. A rectangular coordinate system is established with the number of sub-times as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis, and a dynamic risk assessment coefficient curve is drawn by plotting points;

[0025] At the same time, a preset dynamic risk assessment coefficient threshold curve is drawn in the coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value is compared and analyzed with the preset risk angle range value and preset risk difference value entered and stored internally, and the generated signal is sent to the control unit.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) In the initial state of the present invention, the heat insulation curtain is in a rolled-up state. When the equipment in cavity one is running alone, the heat insulation curtain between cavity one and cavity two is gradually lowered. At this time, the fan at the top of cavity one is started to dissipate heat in a directional manner inside cavity one. Similarly, according to the different positions of the equipment, multiple heat insulation curtains are used to isolate the cavities inside the box to avoid interference of heat radiation on other equipment, thereby achieving precise internal heat dissipation, saving more energy and effectively improving the internal heat dissipation efficiency, while avoiding the influence of heat radiation from the running equipment on adjacent equipment;

[0028] (2) During the operation of the device of the present invention, when the temperature inside the box rises, the temperature of the carbon dioxide gas between the push rod and the fixed tube gradually rises, and the volume gradually expands, thereby pushing the push rod to move, driving the push plate to squeeze the airbag 1. At this time, the airbag 2 begins to expand, driving the electric control board to move, and starting the motor 1 to drive the rotating rod and the gear to rotate synchronously. During the rotation of the gear, the movable rod moves accordingly, and the connecting block is pulled by the movable rod, thereby driving the movable plate to rotate, so as to adjust the opening degree of the heat dissipation groove. At the same time, when the rotating rod rotates, the adjusting block is driven to move by the thread. When the adjusting block contacts the electric control board, the motor 1 stops working, and the opening degree of the heat dissipation groove is controlled by the different air intake volume of the airbag 2, so as to achieve adaptive adjustment of the heat dissipation efficiency according to the internal temperature;

[0029] (3) The present invention also acquires corresponding control signals by collecting data on internal and external interference factors during the use of the power cabinet, and performs comprehensive and efficient supervision on the operation process of the power cabinet during use, that is, comprehensively analyzing and comparing the collected data range with the preset data range, thereby obtaining relevant evaluation signals, and accordingly issuing corresponding warnings to the supervision end, thereby achieving accurate judgment and control of the use of the power cabinet, with a high degree of intelligence, and effectively improving the protection capability of the power cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings;

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure inside the box body of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the heat dissipation slot in the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the heat insulation curtain in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the temperature adjustment component in the present invention;

[0036] Figure 6 It is a system block diagram of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the movable rod in the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the fixed pipe in the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of the airbag 2 in the present invention.

[0040] Legend: 1. Box body; 101. Insulation curtain; 102. Cavity 1; 103. Cavity 2; 104. Cavity 3; 105. Heat dissipation slot; 106. Winding rod; 107. Counterweight; 108. Tank body; 109. Nozzle; 110. Fixed block; 111. Moving slot; 112. Motor 2; 2. Control panel; 3. Temperature control assembly; 301. Moving plate; 302. Connecting block; 303. Movable rod; 304. Motor 1; 305. Rotating rod; 306. Gear; 307. Gear block; 308. Fixed pipe; 309. Push plate; 310. Airbag 1; 311. Airbag 2; 312. Electric control board; 313. Adjustment block; 314. Push rod. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figure 1 - Figure 6 As shown, this embodiment is a protective IGBT power cabinet with an internal temperature control mechanism, including a box body 1, in which a heat insulation curtain 101 is movably installed, and a plurality of heat insulation curtains 101 are provided. The interior of the box body 1 is divided by the plurality of heat insulation curtains 101 to form cavity one 102, cavity two 103 and cavity three 104, and a control panel 2 is fixedly installed on one side of the box body 1.

[0043] The inner walls of cavity one 102, cavity two 103 and cavity three 104 are all provided with heat dissipation grooves 105, and a temperature control component 3 is movably installed inside the box 1. The temperature control component 3 includes a movable plate 301, a connecting block 302 and a movable rod 303. The movable plate 301 is movably installed in the heat dissipation groove 105, and a connecting block 302 is fixedly installed at one end of the movable plate 301. The movable rod 303 is movably installed in the inner wall of the box 1, and the end of the connecting block 302 away from the movable plate 301 is movably connected to the movable rod 303.

[0044] The temperature control component 3 includes a motor 304 and a rotating rod 305. The output end of the motor 304 is fixedly connected to the rotating rod 305. A gear 306 is fixedly installed at one end of the rotating rod 305. A gear block 307 is fixedly installed on the side of the movable rod 303 close to the gear 306. The gear 306 is meshingly connected with the gear block 307. A plurality of fans are fixedly installed on the top of the box 1, and the fans drive the air inside the box 1 to flow for heat dissipation.

[0045] A plurality of motors 112 are fixedly mounted on the box body 1, and the number of motors 112 matches the number of thermal insulation curtains 101. A winding rod 106 is fixedly mounted on the top of the box body 1, and one end of the winding rod 106 is fixedly connected to the output end of motor 112, and one end of the thermal insulation curtain 101 is fixedly connected to the winding rod 106. A counterweight 107 is fixedly mounted on the end of the thermal insulation curtain 101 away from the winding rod 106. A slide groove is provided on the inner wall of the box body 1, and both ends of the counterweight 107 are movably mounted in the slide groove. When the thermal insulation curtain 101 needs to be lowered, the motor 112 is started to drive the winding rod 106 to gradually unwind. Under the guidance of the slide groove, the thermal insulation curtain 101 gradually moves downward, thereby realizing the separation of the internal space of the box body 1.

[0046] In the initial state, the thermal insulation curtain 101 is in a rolled-up state. When the equipment in cavity 102 is running alone, the thermal insulation curtain 101 between cavity 102 and cavity 2 103 is gradually lowered. At this time, the fan on the top of cavity 102 is started to dissipate heat in a targeted manner inside cavity 102. Similarly, according to the different positions of equipment, multiple thermal insulation curtains 101 are used to isolate the cavities inside the box 1 to avoid interference of heat radiation on other equipment, thereby achieving precise internal heat dissipation, saving more energy and effectively improving the internal heat dissipation efficiency, while avoiding the impact of heat radiation from running equipment on adjacent equipment.

[0047] A plurality of operating doors are fixedly installed on one side of the box body 1, a tank body 108 is fixedly installed on the side of the box body 1 away from the operating door, nozzles 109 are fixedly installed in cavity 102, cavity 2 103 and cavity 3 104, the nozzles 109 are fixedly connected to the tank body 108 through pipelines, and the interior of the tank body 108 is filled with carbon dioxide gas.

[0048] The control panel 2 includes a comprehensive data collection unit, a work evaluation unit, a risk evaluation unit and a control unit;

[0049] The comprehensive data acquisition unit collects the internal interference factor data and the external interference factor data of the power cabinet, and sends the internal interference factor data and the external interference factor data to the work evaluation unit respectively; the internal interference factor data includes the operation evaluation value, and the external interference factor data includes the environmental thermal value.

[0050] After receiving the internal interference factor data and the external interference factor data, the work evaluation unit immediately performs risk evaluation and analysis operations on the internal interference factor data and the external interference factor data of the power cabinet. The specific steps are as follows:

[0051] Obtaining the operation evaluation value of the power cabinet in each sub-time period, the operation evaluation value represents the portion of the product value obtained after normalization of the operation parameters in the sub-time period that exceeds the stored preset threshold value, and the operation parameters represent the internal heat value;

[0052] The internal heat value is obtained by collecting multiple temperature sensors fixedly installed inside the box 1. The internal heat value indicates the abnormal value of the temperature rise in cavity 102, cavity 2 103 or cavity 3 104 during the use of the power cabinet, that is, the difference between adjacent values ​​of the temperature rise curve inside cavity 102, cavity 2 103 or cavity 3 104. The larger the value, the greater the temperature change in adjacent sub-time periods.

[0053] During the operation of the power cabinet, a dynamic change line is drawn with time as the X-axis and the temperature difference between adjacent sub-time periods as the Y-axis. A preset dynamic change threshold line is drawn in the coordinate system, where the preset temperature change value is a constant value, so it is a straight line in the coordinate system. The difference between the interval difference of the dynamic risk change line above the preset dynamic change threshold line is obtained, and the difference is assigned symbols A1, A2, A3, A4, etc., and according to the formula Obtaining an operation evaluation value Yo, wherein A1, A2, A3 and A4 are the differences of the interval differences under different horizontal coordinates, Wo is a preset proportional coefficient, Wo>0, and Yo is the operation evaluation value;

[0054] Obtaining the ambient thermal value of the power cabinet in each sub-time period, the ambient thermal value indicates the number of times that the value corresponding to the characteristic data of the power cabinet in the sub-time period exceeds the preset threshold, and the characteristic data indicates the ambient thermal fluctuation value and air flow value of the power cabinet in the sub-time period;

[0055] The ambient heat fluctuation value is acquired by collecting multiple temperature sensors fixedly installed on the box 1. The temperature fluctuation value indicates the temperature change value of the surrounding environment of the box 1 during the operation of the power cabinet. The larger the value, the higher the degree of heat radiation to the environment during the use of the power cabinet.

[0056] The air flow value is collected by an air flow sensor fixedly installed near the box 1. The value indicates the air flow in the detection environment. When the air flow is large, the heat around the box 1 is easily discharged through the fan, resulting in enhanced heat dissipation effect.

[0057] After collecting the ambient thermal fluctuation value Gi and air flow value Qi within the sub-time period, the formula Obtaining the ambient calorific value Vo, wherein a, b and Li are preset proportional coefficients respectively, a, b, Li>0, Vo is represented as the ambient calorific value;

[0058] The operation evaluation value and detection risk value of the power cabinet in each sub-time period are obtained, and the formula Then, the dynamic risk assessment coefficient Pi of the equipment in each sub-time period is obtained, and a rectangular coordinate system is established with the number of sub-times as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis, and a dynamic risk assessment coefficient curve is drawn by plotting points;

[0059] At the same time, a preset dynamic risk assessment coefficient threshold curve is drawn in the coordinate system, and the risk angle range value and risk difference value are obtained, and the risk angle range value is compared and analyzed with the preset risk angle range value and preset risk difference value entered and stored internally. The specific process is as follows:

[0060] If the risk angle range value is less than the preset risk angle range value, and the risk difference value is less than the preset risk difference value, no signal is generated; if the risk angle range value is greater than or equal to the preset angle range value, and the risk difference value is greater than or equal to the preset risk difference value, a risk signal is generated;

[0061] The obtained risk signal is transmitted to the control unit, and the control unit analyzes the power cabinet as follows:

[0062] After obtaining the risk signal of the power cabinet in each sub-time period, immediately mark the risk mark on the device display of the power cabinet corresponding to the risk signal, flash the warning red light, and make the motor 1 304 and the tank 108 work at the same time, specifically:

[0063] When a risk signal is generated, it means that the corresponding equipment inside the box 1 has an abnormally high temperature. If the equipment inside the cavity 102 is abnormal, the cavity 102 and the cavity 2 103 are separated by the heat insulation curtain 101 to effectively avoid mutual influence. At the same time, the motor 1 304 is started to drive the movable plate 301 in the cavity 102 to reset, and the heat dissipation slot 105 is closed by the movable plate 301. At the same time, the nozzle 109 is started to spray the carbon dioxide gas in the tank 108 to fill the cavity 102 with carbon dioxide gas. Similarly, for different cavities, the equipment is quickly cooled in this way to effectively avoid the occurrence of fire caused by subsequent electrical abnormalities, greatly improve the protection performance of the power cabinet, and ensure safe use.

[0064] Example 2: Please refer to Figure 7 - Fig. 9As shown, the present invention also includes a fixed tube 308, which is fixedly installed in the inner wall of the box body 1, and a push rod 314 is movably installed inside the fixed tube 308. The space between the push rod 314 and the fixed tube 308 is filled with carbon dioxide gas. A push plate 309 is fixedly installed on the top of the push rod 314, and an air bag 310 is fixedly installed on the top of the push plate 309. A spring is also sleeved on the push rod 314, and both ends of the spring are fixedly connected to the fixed tube 308 and the push plate 309 respectively, so as to drive the push rod 314 to reset.

[0065] An airbag 2 311 is fixedly installed on the outer wall of the box body 1, and the airbag 1 310 is fixedly connected to the airbag 2 311 through a pipeline. An electric control board 312 is fixedly installed on one side of the airbag 2 311, and an adjusting block 313 is movably installed on the rotating rod 305 through a thread. The position of the adjusting block 313 is adapted to the electric control board 312. When the adjusting block 313 contacts the electric control board 312, the motor 1 304 is turned off, wherein the rotating rod 305 and the adjusting block 313 constitute a screw transmission structure, thereby realizing that the adjusting block 313 is driven to move when the rotating rod 305 rotates. This is a prior art, and the threads are not drawn in the figure.

[0066] A plurality of fixed blocks 110 are fixedly installed on one side of the box body 1 away from the operating door. The fixed block 110 is located below the motor 1 304. A movable groove 111 is opened on the top of the fixed block 110. The airbag 2 311 is fixedly installed in the movable groove 111. The electric control board 312 is movably installed in the movable groove 111. When the airbag 1 310 is squeezed and contracted, the gas moves to the airbag 2 311 through the pipeline, so that the airbag 2 311 expands, and then drives the electric control board 312 to slide in the movable groove 111. The higher the temperature of the carbon dioxide gas, the greater its expansion volume, and the greater the degree of squeezing the airbag 1 310. At this time, the greater the expansion degree of the airbag 2 311, the greater the distance between the electric control board 312 and the adjusting block 313, and the greater the rotation amplitude of the gear 306, and the rotation angle of the movable plate 301 becomes larger accordingly, thereby increasing the opening area of ​​the heat dissipation groove 105 and improving the internal heat dissipation efficiency.

[0067] When the equipment is running and the internal temperature of the box body 1 rises, the temperature of the carbon dioxide gas between the push rod 314 and the fixed tube 308 gradually rises, and the volume gradually expands, thereby pushing the push rod 314 to move, driving the push plate 309 to squeeze the airbag 1 310. At this time, the airbag 2 311 begins to expand, driving the electric control board 312 to move, and starting the motor 1 304 to drive the rotating rod 305 and the gear 306 to rotate synchronously. During the rotation of the gear 306, the movable rod 303 moves accordingly, and the movable rod 303 is used to pull the connecting block 302, thereby driving the movable plate 301 to rotate, so as to adjust the opening degree of the heat dissipation slot 105. At the same time, when the rotating rod 305 rotates, the adjusting block 313 is driven to move by the thread. When the adjusting block 313 contacts the electric control board 312, the motor 1 304 stops working, and the opening degree of the heat dissipation slot 105 is controlled by the different air intake amounts of the airbag 2 311, so as to achieve adaptive adjustment of the heat dissipation efficiency according to the internal temperature.

[0068] One end of the connecting block 302 is movably connected to the movable rod 303. The specific connection method is that a vertical groove is opened on one side of the movable rod 303 close to the connecting block, and a horizontal groove is opened in the vertical groove. The horizontal rod is movably installed in the horizontal groove. One end of the connecting block 302 is movably connected to the horizontal rod. When the movable rod 303 moves upward, the horizontal rod slides in the horizontal groove and lifts upward. Since one end of the connecting block 302 is fixedly connected to the rotating plate 301, the rotating plate 301 is driven to rotate. The grooves on the movable rod 303 are all existing technologies, and their specific structure will not be repeated here.

[0069] In summary, in combination with the first and second embodiments, it can be seen that the corresponding control signal is obtained by collecting the data of the internal interference factors and the external interference factors during the use of the power cabinet, and the operation process of the power cabinet is comprehensively and efficiently supervised during use, that is, the collected data range is comprehensively analyzed and compared with the preset data range, so as to obtain the relevant evaluation signal, and accordingly send the corresponding warning to the supervision end, so as to realize the accurate judgment and control of the use of the power cabinet;

[0070] At the same time, the protection capability of the power cabinet is effectively improved by the coordinated use of the heat insulation curtain 101, the heat dissipation slot 105 and the fan to achieve precise internal heat dissipation, which is more energy-saving and effectively improves the internal heat dissipation efficiency, avoiding the influence of heat radiation from the running equipment on the adjacent equipment. The movable plate 301 and the movable rod 303 are used in coordination, and the opening degree of the heat dissipation slot 105 is controlled by the different air intake volumes of the airbag 2 311, so as to achieve adaptive adjustment of the heat dissipation efficiency according to the internal temperature.

[0071] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A protective IGBT power cabinet with an internal temperature control mechanism, comprising a cabinet (1), characterized in that: A heat-insulating curtain (101) is movably installed in the box (1), and a plurality of the heat-insulating curtains (101) are provided. The interior of the box (1) is divided into a cavity one (102), a cavity two (103), and a cavity three (104) by the plurality of heat-insulating curtains (101), and a control panel (2) is fixedly installed on one side of the box (1); The inner walls of the cavity one (102), the cavity two (103) and the cavity three (104) are all provided with heat dissipation grooves (105); a temperature adjustment component (3) is movably installed inside the box (1); the temperature adjustment component (3) comprises a movable plate (301), a connecting block (302) and a movable rod (303); the movable plate (301) is movably installed in the heat dissipation groove (105); a connecting block (302) is fixedly installed at one end of the movable plate (301); the movable rod (303) is movably installed in the inner wall of the box (1); and an end of the connecting block (302) away from the movable plate (301) is movably connected to the movable rod (303).

2. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 1, characterized in that: The temperature control component (3) further comprises a motor 1 (304) and a rotating rod (305), wherein the output end of the motor 1 (304) is fixedly connected to the rotating rod (305), a gear (306) is fixedly mounted on one end of the rotating rod (305), a tooth block (307) is fixedly mounted on a side of the movable rod (303) close to the gear (306), and the gear (306) is meshingly connected to the tooth block (307); A plurality of fans are fixedly mounted on the top of the box body (1), a fixed tube (308) is fixedly mounted on the inner wall of the box body (1), a push rod (314) is movably mounted inside the fixed tube (308), carbon dioxide gas is filled between the push rod (314) and the fixed tube (308), a push plate (309) is fixedly mounted on the top of the push rod (314), and an air bag (310) is fixedly mounted on the top of the push plate (309).

3. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 2, characterized in that: The outer wall of the box body (1) is fixedly mounted with airbag 2 (311); the airbag 1 (310) is fixedly connected to the airbag 2 (311) via a pipeline; an electric control board (312) is fixedly mounted on one side of the airbag 2 (311); an adjustment block (313) is movably mounted on the rotating rod (305) via a thread; the adjustment block (313) is matched with the electric control board (312) in position.

4. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 1, characterized in that: A plurality of motors (112) are fixedly mounted on the housing (1), the number of the motors (112) being matched with the number of the heat insulation curtains (101); a winding rod (106) is fixedly mounted on the top of the housing (1), one end of the winding rod (106) being fixedly connected to the output end of the motor (112); one end of the heat insulation curtain (101) being fixedly connected to the winding rod (106); a counterweight (107) is fixedly mounted on the end of the heat insulation curtain (101) away from the winding rod (106); a slide groove is provided on the inner wall of the housing (1), and both ends of the counterweight (107) are movably mounted in the slide groove.

5. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 4, characterized in that: A plurality of operating doors are fixedly mounted on one side of the box body (1), a tank body (108) is fixedly mounted on a side of the box body (1) away from the operating doors, and nozzles (109) are fixedly mounted in the cavity one (102), the cavity two (103) and the cavity three (104), the nozzles (109) are fixedly connected to the tank body (108) via a pipeline, and the interior of the tank body (108) is filled with carbon dioxide gas.

6. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 5, characterized in that: A plurality of fixed blocks (110) are fixedly mounted on a side of the box body (1) away from the operating door, the fixed blocks (110) are located below the first motor (304), a movable groove (111) is provided on the top of the fixed blocks (110), the second airbag (311) is fixedly mounted in the movable groove (111), and the electric control panel (312) is movably mounted in the movable groove (111).

7. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 1, characterized in that: The control panel (2) comprises a comprehensive data acquisition unit, a work evaluation unit, a risk evaluation unit and a control unit; The comprehensive data acquisition unit is used to collect the internal interference factor data and the external interference factor data of the power cabinet, the internal interference factor data includes the operation evaluation value, and the external interference factor data includes the environmental heat value, and sends the internal interference factor data and the external interference factor data to the work evaluation unit respectively; After receiving the internal interference factor data and the external interference factor data, the work assessment unit immediately performs risk assessment and analysis operations on the internal interference factor data and the external interference factor data of the power cabinet, and sends the obtained signal to the risk assessment unit; The risk assessment unit performs risk assessment after receiving the data from the work assessment unit, generates a risk signal according to the assessment result, sends the obtained risk signal to the control unit, and makes corresponding action instructions through the control unit control component.

8. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 7, characterized in that: The analysis process of the working evaluation unit on the power cabinet is as follows: Obtaining the operation evaluation value of the power cabinet in each sub-time period, the operation evaluation value represents the portion of the product value obtained after normalization of the operation parameters in the sub-time period that exceeds the stored preset threshold value, and the operation parameters represent the internal heat value; The ambient thermal value of the power cabinet in each sub-time period is obtained. The ambient thermal value indicates the number of times that the value corresponding to the characteristic data of the power cabinet in the sub-time period exceeds the preset threshold. The characteristic data indicates the ambient thermal fluctuation value and air flow value of the power cabinet in the sub-time period.

9. The protective IGBT power cabinet with an internal temperature control mechanism according to claim 8, characterized in that: The risk assessment unit analyzes the power cabinet as follows: The operation evaluation value and detection risk value of the power cabinet in each sub-time period are obtained, and the product value obtained after data normalization of the operation evaluation value and the detection risk value is marked as the dynamic risk assessment coefficient, and then the dynamic risk assessment coefficient Pi of the equipment in each sub-time period is obtained. A rectangular coordinate system is established with the number of sub-times as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis, and a dynamic risk assessment coefficient curve is drawn by plotting points; At the same time, a preset dynamic risk assessment coefficient threshold curve is drawn in the coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value is compared and analyzed with the preset risk angle range value and preset risk difference value entered and stored internally, and the generated signal is sent to the control unit.

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