Electrical anti-condensation device of switch cabinet and anti-condensation method of electrical anti-condensation device

Abstract

The invention belongs to the technical field of switch cabinet condensation prevention, and discloses a switch cabinet electrical condensation prevention device and a condensation prevention method thereof.The switch cabinet electrical condensation prevention device comprises a cabinet body, a communication sleeve is fixedly arranged on the back face of the cabinet body, a gas communication part is embedded in the inner wall of the cabinet body, and the gas communication part comprises a gas frame, gas holes and a heating pipe. Air in other areas in the cabinet body is guided to flow to the suction position, meanwhile, sucked air is output into the cabinet body from the other side, the air in the cabinet body circularly flows out and flows in at a certain flow speed, and in cooperation with the rotating process, special heating is achieved in the circular flowing process, the temperature of the flowing air is increased, and the temperature of the flowing air is increased. Therefore, the temperature of air in the cabinet body is the same everywhere, the temperature difference in the cabinet body is rapidly and effectively reduced, under the condition that humidity exists, the condensation prevention effect is rapidly achieved, the negative influence of condensation on electrical equipment is reduced, the actual reduction speed of the temperature difference in the cabinet body is high, the coverage area is wide, and the use effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of switch cabinet anti-condensation, and specifically relates to an electrical anti-condensation device for a switch cabinet and an anti-condensation method thereof. Background Art

[0002] A switchgear cabinet (also known as an electrical switchgear cabinet) is an electrical device used in power systems to control, protect, and monitor electrical equipment. During use, due to temperature differences or high humidity, water vapor inside the switchgear may condense into water droplets on the surface of the cabinet or the electrical equipment. This situation not only affects the normal operation of the electrical equipment, but may also cause equipment damage or safety hazards.

[0003] The electrical anti-condensation device for switch cabinets in the prior art usually adopts a method of balancing temperature differences to reduce condensation in the switch cabinet during use. When a large temperature difference is detected in the temperature difference cabinet by cooperating with a temperature detection mechanism built into the switch cabinet, the device starts the heating tube to increase the temperature of the low-temperature area, so that the temperature difference is reduced, thereby achieving the anti-condensation effect. However, the internal space of the cabinet is large, and due to the installation arrangement of the internal electrical equipment, the actual space layout is uneven. The heating method of the fixed area still cannot ensure that the temperature difference in various places disappears. Condensation continues to occur in some places with large temperature differences under high humidity, which greatly endangers the operation of the electrical equipment and has poor use effect. Summary of the Invention

[0004] The object of the present invention is to provide a switch cabinet electrical anti-condensation device and an anti-condensation method thereof, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electrical anti-condensation device for a switch cabinet and an anti-condensation method thereof, comprising a cabinet body, a connecting sleeve fixedly provided on the back of the cabinet body, a gas connecting part nested in the inner wall of the cabinet body, the gas connecting part comprising an air frame, an air hole and a heating pipe, a mounting frame fixedly provided on the back of the cabinet body, the connecting sleeves symmetrically distributed on both sides of the mounting frame and connected with the mounting frame, an exhaust fan is provided inside the mounting frame, an air treatment component is symmetrically provided on the front of the mounting frame, the gas connecting part corresponds one-to-one with the two connecting sleeves and is correspondingly connected with the connecting sleeves, the air treatment component comprises a storage box, a cover plate, a side groove and a top opening, and the storage box is filled with dry particles and sponge.

[0006] Preferably, the air hole is opened on the front of the air frame, one end of the heating tube is fixed in the connecting sleeve, and the other end is sleeved inside the air frame, the inner wall of the cabinet is provided with an adapter groove, and the air frame is fixedly sleeved in the adapter groove.

[0007] Preferably, a reserved slot is provided on the front of the cabinet, and the exhaust fan is arranged in an area between the reserved slot and the installation frame.

[0008] Preferably, a communication port is provided on the inner side surface of the communication sleeve, a mounting port is provided on the front surface of the mounting frame, the air treatment component is mounted in the mounting frame through the mounting port, and the communication port is connected to the mounting frame.

[0009] Preferably, the cover is fixedly connected to the front of the storage box, a magnetic sheet is provided on the inner side of the cover, and the cover is fixed to the mounting frame by adsorption of the magnetic sheet, the side grooves are opened on both sides of the storage box, and the top opening is opened on the top of the storage box.

[0010] Preferably, a bypass port is provided on the front of the installation frame, a connecting portion is fixedly sleeved inside the bypass port, the connecting portion separates the interior of the installation frame, a control component is fixed on the front of the installation frame, and the control component controls the ventilation direction of the connecting portion.

[0011] Preferably, the connecting portion includes a conducting frame and a conducting port, the conducting frame is fixedly connected to the interior of the mounting frame, and the upper end is fixedly sleeved in the bypass port, and the conducting port passes through the side surface of the conducting frame.

[0012] Preferably, the control assembly includes an electric push rod, a movable plate, a connecting groove and a connecting frame, the electric push rod is fixed to the front of the mounting frame through a bracket, the movable plate is movably sleeved inside the conducting frame, the communicating groove is opened on the side of the movable plate, the conducting port is located on the moving path of the communicating groove, the movable end of the electric push rod is fixedly connected to the connecting frame, and the other end of the connecting frame is fixedly connected to the movable plate

[0013] A method for preventing condensation of an electrical anti-condensation device for a switch cabinet, comprising the following steps:

[0014] Step 1: When the temperature detection mechanism inside the cabinet detects a large temperature difference inside the cabinet, the exhaust fan starts and draws air along one side, and sequentially draws air from the cabinet through the connecting sleeve, air frame, and air holes on the corresponding side. The drawn air is then re-output into the cabinet through the connecting sleeve, air frame, and air holes on the other side of the installation frame.

[0015] Step 2: During the above gas flow process, the heating pipes on both sides are activated simultaneously to increase the temperature of the gas flowing into the gas frame. As the gas inside the cabinet is continuously sucked in and replenished into the cabinet, the air temperature in the cabinet is uniform everywhere, eliminating temperature differences.

[0016] Step 3: As the air flows into the installation frame and passes through the air handling components, the moisture in the air is absorbed by the dry particles in the storage box, and the dust is filtered on the sponge, reducing the humidity of the air in the cabinet.

[0017] Step 4: When the built-in temperature detection mechanism of the cabinet detects that the internal temperature is too high, the exhaust fan is started and the control component is started at the same time. The electric push rod in the control component drives the connecting frame to move and drives the movable plate to move. The movable plate moves along the inside of the conduction frame, closing the conduction port on one side of the conduction frame, and connecting the conduction port on the other side of the conduction frame with the connecting groove, so that the exhaust fan draws air outward through the conduction frame, the connecting groove and the bypass port. The inhaled air is passed into the installation frame and, after being processed by the air treatment component, is continuously input into the cabinet through the air frame. The amount of gas in the cabinet increases and is blown out along the gaps to complete the internal heat exchange and heat removal, and complete the cooling of the cabinet interior.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) The present invention utilizes air frames symmetrically distributed on both sides of the cabinet, and cooperates with the connecting arrangement of the connecting sleeve and the mounting frame. By utilizing the suction effect of the exhaust fan, when a large temperature difference is detected inside the cabinet, the exhaust fan is used to suck air from a local area of ​​the cabinet, and guides the gas in other areas inside the cabinet to flow to the suction position. At the same time, the sucked air is output to the cabinet from the other side. At a certain flow rate, the gas inside the cabinet is circulated outward and inflows, and in conjunction with the rotation process, special heating is achieved during the circulation process to increase the temperature of the flowing gas, so that the temperature of the air inside the cabinet is the same everywhere, and the temperature difference inside the cabinet is quickly and effectively reduced. In the presence of humidity, the anti-condensation effect is quickly achieved, reducing the negative impact of condensation on electrical equipment. The actual temperature difference inside the cabinet is reduced quickly, the coverage area is wide, and the use effect is good.

[0020] (2) The present invention reuses the air frames symmetrically distributed on both sides of the cabinet, and cooperates with the connecting arrangement of the connecting sleeve and the installation frame. By utilizing the suction effect of the exhaust fan, when circulating the air inside the cabinet and exhausting it, it cooperates with the air treatment components installed in the cabinet to dehumidify and filter the circulating air inside the cabinet, quickly clean up the wet air and dust inside the cabinet, further improve the anti-condensation effect inside the cabinet, reduce the possibility of condensation by removing moisture, and filter the internal air at the same time.

[0021] (3) The present invention reuses the suction effect of the exhaust fan and cooperates with the control component and the connecting part. When the temperature inside the cabinet is detected to be too high, the suction direction is changed to directly inhale the ambient air, and the air is continuously input into the cabinet after being filtered and dehumidified by the air treatment component, so that the amount of air inside the cabinet is continuously increased, and the air is bypassed along the gaps inside the cabinet, and the air inhaled and introduced from the outside of the environment is used to achieve heat exchange inside the cabinet, quickly reduce the internal heat, and avoid the negative impact caused by overheating. In fact, there is no need to add an additional cooling mechanism, and heat dissipation treatment is quickly achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the back side of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the air treatment assembly and the installation frame of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection between the mounting frame and the connecting sleeve of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between the connecting sleeve and the heating tube of the present invention;

[0028] Figure 7 is a schematic cross-sectional view of the air handling assembly and the mounting frame of the present invention;

[0029] Figure 8 is a schematic diagram of an air treatment assembly of the present invention;

[0030] Figure 9 This is an exploded schematic diagram of the control assembly and the connecting portion of the present invention;

[0031] Figure 10 It is a cross-sectional schematic diagram of the cabinet of the present invention.

[0032] In the figure: 1. Cabinet; 2. Connecting sleeve; 3. Mounting frame; 4. Air frame; 5. Exhaust fan; 6. Air hole; 7. Heating pipe; 8. Air handling component; 81. Storage box; 82. Cover plate; 83. Side groove; 84. Top opening; 9. Connecting part; 91. Conducting frame; 92. Conducting opening; 10. Control component; 101. Electric push rod; 102. Movable plate; 103. Connecting groove; 104. Connecting frame; 11. Connecting opening; 12. Mounting opening; 13. Bypass opening; 14. Adapter slot; 15. Reserved slot. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 10As shown, an embodiment of the present invention provides an electrical anti-condensation device for a switch cabinet and an anti-condensation method thereof, comprising a cabinet body 1, a connecting sleeve 2 is fixedly provided on the back of the cabinet body 1, a gas connecting portion is nested on the inner wall of the cabinet body 1, the gas connecting portion comprises an air frame 4, an air hole 6 and a heating tube 7, a mounting frame 3 is fixedly provided on the back of the cabinet body 1, the connecting sleeves 2 are symmetrically distributed on both sides of the mounting frame 3 and are connected to the mounting frame 3, an exhaust fan 5 is provided inside the mounting frame 3, an air treatment component 8 is symmetrically provided on the front of the mounting frame 3, the gas connecting portion corresponds one-to-one to the two connecting sleeves 2 and is correspondingly connected to the connecting sleeves 2, the air treatment component 8 comprises a storage box 81, a cover plate 82, a side groove 83 and a top opening 84, and the storage box 81 is filled with dry particles and sponge.

[0035] Example 1: When the temperature detection mechanism built into the cabinet 1 detects that the temperature difference inside the cabinet 1 is large, the exhaust fan 5 is started, and the exhaust fan 5 draws air along one side, and in turn draws air inside the cabinet 1 through the connecting sleeve 2, air frame 4 and air hole 6 on the corresponding side, and the drawn air is re-output to the cabinet 1 in the installation frame 3 toward the connecting sleeve 2, air frame 4 and air hole 6 on the other side. During the above-mentioned gas flow process, the heating tubes 7 on both sides are started at the same time, so that the temperature of the gas flowing into the air frame 4 increases, and as the gas inside the cabinet 1 is continuously inhaled and replenished into the cabinet 1, the air temperature in the cabinet 1 is the same everywhere, eliminating the temperature difference, and as the gas flows into the installation frame 3, when the gas passes through the air treatment component 8, the moisture in the air is adsorbed into the dry particles in the storage box 81, and the dust is filtered on the sponge, and the humidity of the gas in the cabinet 1 is reduced.

[0036] First, by utilizing the air frames 4 symmetrically distributed on both sides of the cabinet 1, and cooperating with the connecting settings of the connecting sleeve 2 and the mounting frame 3, and utilizing the suction effect of the exhaust fan 5, when a large temperature difference is detected inside the cabinet 1, the exhaust fan 5 is used to suck air from a local area of ​​the cabinet 1, and guide the gas in other areas inside the cabinet 1 to flow to the suction position, and at the same time output the sucked air to the cabinet 1 from the other side. At a certain flow rate, the gas inside the cabinet 1 is circulated outward and inflowed, and in conjunction with the rotation process, special heating is achieved during the circulation process to increase the temperature of the flowing gas, so that the temperature of the air inside the cabinet 1 is the same everywhere, and the temperature difference inside the cabinet 1 is quickly and effectively reduced. In the presence of humidity, the anti-condensation effect is quickly achieved to reduce the negative impact of condensation on electrical equipment. In fact, the temperature difference inside the cabinet 1 is reduced quickly, the coverage area is wide, and the use effect is good.

[0037] In addition, by reusing the air frames 4 symmetrically distributed on both sides of the cabinet 1, and cooperating with the connecting settings of the connecting sleeve 2 and the mounting frame 3, and utilizing the suction effect of the exhaust fan 5, when circulating the internal gas of the cabinet 1 and discharging it, in conjunction with the air treatment component 8 installed in the cabinet 1, the circulating internal gas of the cabinet 1 is dehumidified and filtered, and the wet air and dust inside the cabinet 1 are quickly cleaned, further improving the anti-condensation effect inside the cabinet 1, reducing the possibility of condensation by removing moisture, and filtering the internal air at the same time.

[0038] Example 2: When the built-in temperature detection mechanism of the cabinet 1 detects that the internal temperature is too high, the exhaust fan 5 is started and the control component 10 is started at the same time. The electric push rod 101 in the control component 10 drives the connecting frame 104 to move and drives the movable plate 102 to move. The movable plate 102 moves along the inside of the conduction frame 91, closing the conduction port 92 on one side of the conduction frame 91 and making the conduction port 92 on the other side of the conduction frame 91 connected with the connecting groove 103, so that the exhaust fan 5 draws air outward through the conduction frame 91, the connecting groove 103 and the bypass port 13, and the inhaled air is passed into the installation frame 3, and after the air is processed by the air treatment component 8, it is continuously input into the cabinet 1 through the air frame 4. The amount of gas in the cabinet 1 increases and is blown out along the gaps at various places, completing the internal heat exchange and heat removal, and completing the cooling of the interior of the cabinet 1.

[0039] First, by reusing the suction effect of the exhaust fan 5 and cooperating with the control component 10 and the connecting part 9, when the temperature inside the cabinet 1 is detected to be too high, the suction direction is changed to directly inhale the ambient air, and the air is filtered and dehumidified by the air treatment component 8 and continuously input into the cabinet 1, so that the amount of air inside the cabinet 1 continues to increase, and bypasses along the gaps inside the cabinet 1, and utilizes the air inhaled and introduced from the outside of the environment to realize heat exchange inside the cabinet 1, quickly reduce the internal heat, and avoid the negative effects caused by overheating. In fact, there is no need to add an additional cooling mechanism, and heat dissipation treatment can be quickly achieved.

[0040] Among them, the air hole 6 is opened on the front of the air frame 4, one end of the heating tube 7 is fixed in the connecting sleeve 2, and the other end is sleeved inside the air frame 4, and the inner wall of the cabinet 1 is provided with an adapter groove 14, and the air frame 4 is fixedly sleeved in the adapter groove 14.

[0041] By utilizing the cooperation between the air holes 6 and the air frame 4 , the air is sucked in and discharged, and the heating tube 7 completes the heating treatment of the internal flowing airflow in the air frame 4 .

[0042] A reserved slot 15 is provided on the front of the cabinet 1 , and the exhaust fan 5 is arranged in the area between the reserved slot 15 and the installation frame 3 .

[0043] By utilizing the reserved slot 15 to provide installation space for the exhaust fan 5, sufficient rotation and suction air volume is guaranteed.

[0044] Among them, a connecting port 11 is provided on the inner side surface of the connecting sleeve 2, and a mounting port 12 is provided on the front of the mounting frame 3. The air treatment component 8 is mounted in the mounting frame 3 through the mounting port 12. The connecting port 11 is connected to the mounting frame 3. The cover 82 is fixedly connected to the front of the storage box 81. A magnetic sheet is provided on the inner side surface of the cover 82, and the cover is fixed to the mounting frame 3 by adsorption of the magnetic sheet. Side grooves 83 are provided on both sides of the storage box 81, and a top port 84 is provided on the top of the storage box 81.

[0045] The connecting port 11 provides installation space for the air treatment assembly 8, and cooperates with the magnetic sheet (not shown in the figure) on the inner side of the cover plate 82 to complete magnetic fixation, making it easy to disassemble and replace the internal drying particles and sponge.

[0046] Among them, the front of the mounting frame 3 is provided with a bypass port 13, the interior of the bypass port 13 is fixedly sleeved with a connecting portion 9, the connecting portion 9 partitions the interior of the mounting frame 3, the front of the mounting frame 3 is fixedly provided with a control component 10, the control component 10 controls the ventilation direction of the connecting portion 9, the connecting portion 9 includes a conducting frame 91 and a conducting port 92, the conducting frame 91 is fixedly connected to the interior of the mounting frame 3, and the upper end is fixedly sleeved in the bypass port 13, the conducting port 92 runs through the side of the conducting frame 91, and the control component 1 0 includes an electric push rod 101, a movable plate 102, a connecting groove 103 and a connecting frame 104. The electric push rod 101 is fixed to the front of the installation frame 3 by a bracket. The movable plate 102 is movably connected to the interior of the conducting frame 91. The connecting groove 103 is provided on the side of the movable plate 102. The conducting port 92 is located on the moving path of the connecting groove 103. The movable end of the electric push rod 101 is fixedly connected to the connecting frame 104, and the other end of the connecting frame 104 is fixedly connected to the movable plate 102.

[0047] By utilizing the bypass port 13 to realize gas bypass, the connecting portion 9 isolates the mounting frame 3 to realize airflow conduction control, and the control component 10 controls the movement of the movable plate 102 and changes the connection position of the connecting groove 103, thereby controlling and changing the connecting airway of the connecting portion 9 to realize suction control in different directions.

[0048] A method for preventing condensation of an electrical anti-condensation device for a switch cabinet, comprising the following steps:

[0049] Step 1: When the temperature detection mechanism built into the cabinet 1 detects that the temperature difference inside the cabinet 1 is large, the exhaust fan 5 is started, and the exhaust fan 5 draws air along one side, and sequentially draws air from the cabinet 1 through the connecting sleeve 2, the air frame 4, and the air holes 6 on the corresponding side. The drawn air is then re-outputted into the cabinet 1 in the mounting frame 3 toward the connecting sleeve 2, the air frame 4, and the air holes 6 on the other side.

[0050] Step 2: During the above-mentioned gas flow process, the heating tubes 7 on both sides are simultaneously activated to increase the temperature of the gas flowing into the gas frame 4. As the gas inside the cabinet 1 is continuously sucked in and replenished into the cabinet 1, the air temperature in the cabinet 1 is uniform everywhere, eliminating the temperature difference.

[0051] Step 3: As the air flows into the installation frame 3 and passes through the air handling assembly 8, the moisture in the air is absorbed by the dry particles in the storage box 81, and the dust is filtered on the sponge, and the humidity of the air in the cabinet 1 is reduced;

[0052] Step 4: When the built-in temperature detection mechanism of the cabinet 1 detects that the internal temperature is too high, the exhaust fan 5 is started and the control component 10 is started at the same time. The electric push rod 101 in the control component 10 drives the connecting frame 104 to move, and drives the movable plate 102 to move. The movable plate 102 moves along the inside of the conduction frame 91, closes the conduction port 92 on one side of the conduction frame 91, and makes the conduction port 92 on the other side of the conduction frame 91 connected with the connecting groove 103, so that the exhaust fan 5 draws air outward through the conduction frame 91, the connecting groove 103 and the bypass port 13. The inhaled air is passed into the installation frame 3 and, after being processed by the air treatment component 8, is continuously input into the cabinet 1 through the air frame 4. The amount of gas in the cabinet 1 increases and is blown out along the gaps, completing the internal heat exchange and heat removal, and completing the cooling of the interior of the cabinet 1.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet electrical anti-condensation device, comprising a cabinet body (1), characterized in that: A connecting sleeve (2) is fixedly provided on the back of the cabinet (1), a gas connecting portion is nested on the inner wall of the cabinet (1), and the gas connecting portion includes an air frame (4), an air hole (6) and a heating pipe (7). A mounting frame (3) is fixedly provided on the back of the cabinet (1), the connecting sleeves (2) are symmetrically distributed on both sides of the mounting frame (3) and are connected to the mounting frame (3), an exhaust fan (5) is provided inside the mounting frame (3), and an air handling component (8) is symmetrically provided on the front of the mounting frame (3), and the gas connecting portion corresponds to the two connecting sleeves (2) one by one and is correspondingly connected to the connecting sleeves (2). The air treatment assembly (8) comprises a storage box (81), a cover plate (82), a side groove (83) and a top opening (84); the storage box (81) is filled with dry particles and sponge.

2. The switch cabinet electrical anti-condensation device according to claim 1, characterized in that: The air hole (6) is opened on the front of the air frame (4); one end of the heating tube (7) is fixed in the connecting sleeve (2), and the other end is sleeved inside the air frame (4); the inner wall of the cabinet (1) is provided with an adapting groove (14), and the air frame (4) is fixedly sleeved in the adapting groove (14).

3. The switch cabinet electrical anti-condensation device according to claim 2, characterized in that: A reserved slot (15) is provided on the front of the cabinet (1), and the exhaust fan (5) is arranged in the area between the reserved slot (15) and the installation frame (3).

4. The switch cabinet electrical anti-condensation device according to claim 3, characterized in that: A communication port (11) is provided on the inner side surface of the communication sleeve (2), a mounting port (12) is provided on the front surface of the mounting frame (3), the air treatment component (8) is sleeved in the mounting frame (3) through the mounting port (12), and the communication port (11) is in communication with the mounting frame (3).

5. The switch cabinet electrical anti-condensation device according to claim 4, characterized in that: The cover plate (82) is fixedly connected to the front of the storage box (81); a magnetic sheet is provided on the inner side of the cover plate (82) and is fixed to the mounting frame (3) by adsorption of the magnetic sheet; the side grooves (83) are opened on both sides of the storage box (81); and the top opening (84) is opened on the top of the storage box (81).

6. The switch cabinet electrical anti-condensation device according to claim 5, characterized in that: A bypass port (13) is provided on the front of the installation frame (3); a connecting portion (9) is fixedly sleeved inside the bypass port (13); the connecting portion (9) separates the interior of the installation frame (3); a control component (10) is fixedly provided on the front of the installation frame (3); the control component (10) controls the ventilation direction of the connecting portion (9).

7. The switch cabinet electrical anti-condensation device according to claim 6, characterized in that: The connecting portion (9) comprises a conducting frame (91) and a conducting opening (92); the conducting frame (91) is fixedly connected to the interior of the mounting frame (3), and the upper end is fixedly sleeved in the bypass opening (13); the conducting opening (92) passes through the side of the conducting frame (91).

8. The switch cabinet electrical anti-condensation device according to claim 7, characterized in that: The control assembly (10) includes an electric push rod (101), a movable plate (102), a connecting groove (103) and a connecting frame (104); the electric push rod (101) is fixed to the front of the installation frame (3) through a bracket; the movable plate (102) is movably sleeved inside the conduction frame (91); the connecting groove (103) is opened on the side of the movable plate (102); the conduction port (92) is located on the moving path of the connecting groove (103); the movable end of the electric push rod (101) is fixedly connected to the connecting frame (104); and the other end of the connecting frame (104) is fixedly connected to the movable plate (102).

9. The anti-condensation method for an electrical anti-condensation device for a switch cabinet according to any one of claims 1 to 8, characterized in that: The following steps are included: Step 1: When the temperature detection mechanism built into the cabinet (1) detects that the temperature difference inside the cabinet (1) is large, the exhaust fan (5) is started, and the exhaust fan (5) draws air along one side, and sequentially draws air from the cabinet (1) through the connecting sleeve (2), the air frame (4), and the air hole (6) on the corresponding side, and the drawn air is re-outputted into the cabinet (1) in the installation frame (3) toward the connecting sleeve (2), the air frame (4), and the air hole (6) on the other side; Step 2: During the above-mentioned gas flow process, the heating tubes (7) on both sides are simultaneously activated, so that the temperature of the gas flowing into the gas frame (4) increases, and as the gas inside the cabinet (1) is continuously sucked in and replenished into the cabinet (1), the air temperature in the cabinet (1) is the same everywhere, eliminating the temperature difference; Step 3: As the air flows into the installation frame (3), the moisture in the air is absorbed by the dry particles in the storage box (81) when the air passes through the air handling assembly (8), and the dust is filtered on the sponge, and the humidity of the air in the cabinet (1) is reduced; Step 4: When the built-in temperature detection mechanism of the cabinet (1) detects that the internal temperature is too high, the exhaust fan (5) is started and the control component (10) is started. The electric push rod (101) in the control component (10) drives the connecting frame (104) to move and drives the movable plate (102) to move. The movable plate (102) moves along the inside of the conductive frame (91), closes the conductive opening (92) on one side of the conductive frame (91), and makes the conductive opening on the other side of the conductive frame (91) open. (92) is connected to the communication groove (103), so that the exhaust fan (5) draws air outward through the conduction frame (91), the communication groove (103) and the bypass port (13), and the inhaled air is passed into the installation frame (3), and after being processed by the air treatment component (8), it is continuously input into the cabinet (1) through the air frame (4), and the amount of gas in the cabinet (1) increases and is blown out along the gaps at various locations, completing the internal heat exchange and heat removal, and completing the cooling of the interior of the cabinet (1).

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