A removable high-voltage switchgear with a functional structure for eliminating electromagnetic fields

Abstract

The present application relates to the technical field of switch cabinets, and discloses a removable high-voltage switch cabinet with a functional structure for locally eliminating electromagnetic fields, including a cabinet body, a placement slot provided on the cabinet body, a through-hole connected to the placement slot provided on the cabinet body, an aluminum plate provided at the through-hole, a through-hole for a busbar to pass through, a placement plate provided in the cabinet body, a mounting plate provided on the placement plate, a mounting groove provided on the mounting plate, a dehumidification bag provided in the mounting groove, a movable plate slidably connected to the placement plate, and the movable plate is used to seal the opening of the mounting groove. The present application arranges the aluminum plate on the through-hole, and the busbar passes through the through-hole. Since the magnetic permeability of the aluminum plate is lower than that of the aluminum-zinc plate, the aluminum plate is not easily affected by eddy currents, so that the aluminum plate is not easily overheated, reducing the impact of overheating of the cabinet on internal electrical equipment; if it rains outside, the dehumidification bag absorbs moisture in the placement cavity through the opening of the mounting groove, reducing the occurrence of condensation in the placement cavity.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage switchgear, and in particular to a removable high-voltage switchgear with a functional structure for locally eliminating electromagnetic fields. Background Art

[0002] High-voltage switchgear is an electrical product used for power generation, transmission, distribution, conversion and consumption in power systems. Its voltage level ranges from 3.6kV to 550kV. High-voltage switchgear usually has multiple busbars installed inside to transmit or distribute electricity.

[0003] In the related art, the switch cabinet includes a cabinet body, a placement slot is provided on the cabinet body, a placement plate is provided in the placement slot, a placement cavity for busbar installation is formed between the placement plate and the placement slot, a through hole is provided on the side of the cabinet body, an aluminum-zinc plate is provided at the through hole, and a perforation is provided on the aluminum-zinc plate for the busbar to pass through.

[0004] The internal space of the placement cavity is small, and it is difficult for air to circulate, making it difficult for the air in the placement cavity to circulate. If it rains outside and the environment is relatively humid, it is very easy for the inside of the switch cabinet to be damp and humid, which will cause condensation on the surface of the busbar, which may cause discharge flashover and cause line tripping and other problems. Summary of the Invention

[0005] In order to improve the problem of condensation inside the cabinet, the present application provides a removable high-voltage switch cabinet with a functional structure for locally eliminating electromagnetic fields.

[0006] The present application provides a removable high-voltage switchgear with a functional structure for locally eliminating electromagnetic fields, which adopts the following technical solutions:

[0007] A removable high-voltage switchgear with a functional structure for locally eliminating electromagnetic fields comprises a cabinet body, a placement slot being provided on the cabinet body, a through-hole communicating with the placement slot being provided on the cabinet body, an aluminum plate being provided at the through-hole, a through-hole for a busbar to pass through being provided on the aluminum plate, a placement plate being provided in the cabinet body, a placement cavity being formed between the placement plate and the bottom wall of the placement slot, a mounting plate being provided on the placement plate, a mounting groove being provided on the mounting plate, a dehumidification bag being provided in the mounting groove, a movable plate being slidably connected to the placement plate, and the movable plate being used to block the opening of the mounting groove.

[0008] By adopting the above technical solution, an aluminum plate is set on the through-hole, and the busbar passes through the through-hole. Since the magnetic permeability of the aluminum plate is lower than that of the aluminum-zinc plate, the aluminum plate is not easily affected by eddy currents, so that the aluminum plate is not easy to overheat, reducing the impact of overheating of the cabinet on the internal electrical equipment; the movable plate blocks the opening of the installation groove, and the dehumidification bag does not absorb external moisture under normal circumstances; if it rains outside, the staff slides the movable plate so that the movable plate does not block the opening of the installation groove, so that the dehumidification bag absorbs the moisture in the placement cavity through the opening of the installation groove, reducing the occurrence of condensation in the placement cavity.

[0009] Optionally, a water absorbing member for absorbing moisture is detachably connected to the movable plate; when the water absorbing member is not full of water, the movable plate can block the installation groove; when the water absorbing member is full of water, the movable plate does not block the installation groove.

[0010] By adopting the above technical solution, the water-absorbing member is arranged on the movable plate. At this time, the water-absorbing member and the movable plate are acted upon by friction, so that the movable plate can stably block the opening of the installation groove, so that the movable plate can stably restrict the dehumidification bag from dehumidifying; when there is too much moisture in the placement cavity, the water-absorbing member can absorb moisture in the air. At this time, the weight of the water-absorbing member increases, so that the water-absorbing member can drive the movable plate to fall, so that the movable plate does not continue to block the installation groove, so that the dehumidification bag can absorb moisture in the air, and when the moisture inside the placement cavity is heavy, the dehumidification bag can automatically absorb moisture, so that the dehumidification bag is only used when the humidity is high, so that the dehumidification bag is consumed less in normal times, and the service life of the dehumidification bag is extended, thereby reducing the frequency of replacing the dehumidification bag and reducing costs.

[0011] Optionally, the placement plate is provided with a mounting hole for the mounting plate to pass through, the placement plate is slidably connected with a stop rod, the placement plate is provided with a stop spring, the mounting plate is provided with a stop hole for the stop rod to be inserted, the stop spring drives the stop rod to disengage from the stop hole, and the movable plate is located on the moving path of the stop rod; when the movable plate abuts against the stop rod, the stop rod is inserted into the stop hole; when the movable plate does not abut against the stop rod, the stop rod disengages from the stop hole.

[0012] By adopting the above technical solution, the stop spring drives the stop rod to disengage from the stop hole, and the moving plate is located in the moving path of the stop rod, so that the moving plate restricts the stop rod from moving, and at this time the stop rod is located in the stop hole; if the moving plate falls, the moving plate is not in the moving path of the stop rod, so that the stop spring drives the stop rod to move, thereby causing the stop rod to disengage from the stop hole, so that the stop rod does not limit the mounting plate, and the staff can directly know the position of the moving plate by observing the state of the stop rod, so that the staff can know whether the mounting groove is open, so that the staff can choose whether to replace the dehumidification bag. If the staff replaces the dehumidification bag, the stop rod disengages from the stop hole, reducing the staff's operation of moving the stop rod and speeding up the replacement of the dehumidification bag.

[0013] Optionally, a fixing bar is slidably connected to the placement plate, a fixing groove is provided on the installation plate for inserting the fixing bar, a moving block is provided on the movable plate, the fixing bar is located on the moving path of the moving block, and the moving block drives the fixing bar to disengage from the fixing groove; when the fixing bar disengages from the fixing groove, the movable plate does not block the installation groove.

[0014] By adopting the above technical solution, the staff slides the fixing bar and inserts the fixing bar into the fixing groove to achieve mutual fixation of the installation plate and the placement plate; by dropping the movable plate, the movable plate drives the fixing bar to move through the movable block, so that the fixing bar can be separated from the fixing groove, and the fixing bar releases the fixation of the installation plate, so that the subsequent staff can remove the installation plate from the placement plate, allowing the staff to replace the dehumidification bag.

[0015] Optionally, a fixing spring is provided on the placement plate, and the fixing spring drives the fixing bar to be inserted into the fixing groove. A fixing block is provided on the fixing bar, and the fixing block is located on the moving path of the moving block. A moving inclined surface is provided on the fixing block, and the moving block drives the fixed block to move via the moving inclined surface.

[0016] By adopting the above technical solution, the fixing bar is driven to be inserted into the fixing groove by the fixing spring, so that the fixing bar can stably fix the mounting plate, thereby preventing the fixing bar from sliding on the placement plate and causing the mounting plate to separate from the placement plate; the moving block drives the fixed block to move by the moving inclined surface, so that the moving block can drive the fixed block to move, so that the fixing bar can be smoothly separated from the fixing groove.

[0017] Optionally, a placement hole is provided on the placement plate, a placement door is detachably connected to the placement hole, a plurality of heat dissipation holes are provided on the placement door, and the water absorbing component is located on the side of the heat dissipation hole facing the bottom wall of the placement groove.

[0018] By adopting the above technical solution, a plurality of heat dissipation holes are opened on the placement door, and the water absorbent is located on the side of the heat dissipation holes facing the bottom wall of the placement groove, so that the water absorbent can absorb the air flowing through the heat dissipation holes, reduce the humidity of the air entering the placement cavity, and thus reduce the occurrence of condensation in the placement cavity.

[0019] Optionally, a accommodating plate is slidably connected to the placement door, and the accommodating plate is used to block the opening of the heat dissipation hole. A accommodating bar is provided on the accommodating plate, and a accommodating block is provided on the movable plate. The accommodating bar is located on the moving path of the accommodating block; when the movable plate opens the mounting groove, the accommodating plate blocks the heat dissipation hole.

[0020] By adopting the above technical solution, when the movable plate falls, since the accommodating bar is located on the moving path of the accommodating block, the movable plate drives the accommodating bar to move through the accommodating block, and the accommodating bar drives the accommodating plate to move, so that the accommodating plate blocks the heat dissipation holes. When the external humidity is high, the heat dissipation holes are blocked, making it difficult for external air to enter the placement cavity, thereby reducing the occurrence of condensation in the placement cavity.

[0021] Optionally, a dovetail block is provided on the water absorbing member, and a dovetail groove is provided on the surface of the movable plate facing the placement plate; when the dovetail block is inserted into the dovetail groove, the water absorbing member is fixed on the movable plate.

[0022] By adopting the above technical solution, the dovetail block is inserted into the dovetail groove. Since the dovetail groove is provided on the surface of the movable plate facing the placement plate, the dovetail block is difficult to separate from the opening direction of the dovetail groove, so that the water absorbent can be stably placed on the movable plate, avoiding the water absorbent from separating from the movable plate due to shaking; at the same time, the placement door is opened, and the staff can directly take the water absorbent out of the placement hole, reducing the difficulty of replacing the water absorbent, so that the staff can replace the water absorbent regularly.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] An aluminum plate is set on the perforation, and the busbar passes through the through hole. Since the magnetic permeability of the aluminum plate is lower than that of the aluminum-zinc plate, the aluminum plate is not easily affected by eddy currents, so that the aluminum plate is not easy to overheat, reducing the impact of overheating of the cabinet on the internal electrical equipment; the movable plate blocks the opening of the installation groove, and the dehumidification bag will not absorb external moisture under normal circumstances; if it rains outside, the staff slides the movable plate to prevent the movable plate from blocking the opening of the installation groove, so that the dehumidification bag can absorb moisture in the placement cavity through the opening of the installation groove, thereby reducing condensation in the placement cavity.

[0025] The stop spring drives the stop rod to disengage from the stop hole, and the moving plate is located in the moving path of the stop rod, so that the moving plate restricts the movement of the stop rod, and at this time the stop rod is located in the stop hole; if the moving plate falls, the moving plate is not in the moving path of the stop rod, so that the stop spring drives the stop rod to move, thereby allowing the stop rod to disengage from the stop hole, so that the stop rod does not limit the mounting plate, and the staff can directly know the position of the moving plate by observing the state of the stop rod, and the staff can choose whether to replace the dehumidification bag. If the staff replaces the dehumidification bag, the stop rod disengages from the stop hole, which reduces the staff's operation of moving the stop rod and speeds up the replacement of the dehumidification bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of Example 1;

[0027] Figure 2 This is a schematic structural diagram highlighting the placement cavity in Example 1;

[0028] Figure 3 is a schematic structural diagram of Example 2;

[0029] Figure 4 It is along Figure 3 Partial cross-sectional view of the midline BB;

[0030] Figure 5 It is along Figure 3 Partial cross-section view of the CC line;

[0031] Figure 6 This is a schematic diagram showing the structure of the placement plate in Example 2;

[0032] Figure 7 It is along Figure 6 Partial cross-sectional view of the midline DD;

[0033] Figure 8 It is a structural diagram of the highlighted moving block in Example 2.

[0034] Reference numerals: 1, cabinet body; 11, cabinet door; 12, placement groove; 13, perforation; 131, aluminum plate; 132, through hole; 14, placement cavity; 2, placement plate; 21, placement hole; 22, placement door; 221, heat dissipation hole; 222, receiving groove; 223, receiving plate; 224, receiving hole; 225, receiving bar; 23, mounting hole; 231, receiving groove; 232, fixing spring; 233, fixing bar; 234, Fixed block; 24, moving hole; 241, stopping groove; 242, stopping rod; 243, stopping plate; 244, stopping spring; 3, mounting plate; 31, mounting groove; 32, dehumidification bag; 33, fixing groove; 34, mounting block; 341, stopping hole; 4, moving plate; 41, moving strip; 411, dovetail groove; 42, water absorbing part; 421, dovetail block; 43, moving block; 431, moving inclined plane; 44, accommodating block. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-8 This application is described in further detail. Example

[0036] This embodiment discloses a removable high-voltage switchgear with a functional structure for locally eliminating electromagnetic fields. Figure 1 A removable high-voltage switchgear with a local electromagnetic field elimination function structure includes a cabinet body 1 and a cabinet door 11, wherein the cabinet door 11 is rotatably connected to the cabinet body 1. A placement slot 12 is opened on the cabinet body 1, and the placement slot 12 is used for placing electrical components.

[0037] Reference Figure 1 and Figure 2 A placement plate 2 is fixedly attached to the cabinet body 1, with placement holes 21 defined on its surface. The space between the placement plate 2 and the bottom wall of the placement slot 12 forms a placement cavity 14, which is used for busbar installation. A placement door 22 is threadedly attached to the placement plate 2, sealing the placement holes 21. Workers then install the busbar through placement holes 21.

[0038] Reference Figure 1 and Figure 2 The cabinet 1 has a through hole 13 on its side that connects to the placement cavity 14. An aluminum plate 131 is threadedly connected to the interior of the placement cavity 14 and is completely located within the placement cavity 14. The aluminum plate 131 has a plurality of through holes 132 for the busbar to pass through, and the through holes 132 are arranged in a vertical array.

[0039] The implementation principle of Example 1 is: the busbar passes through the aluminum plate 131, which reduces the eddy current phenomenon of the aluminum plate 131 and reduces the heating of the aluminum plate 131. Example

[0040] Reference Figure 3 and Figure 4The difference between this embodiment and embodiment 1 is that a mounting hole 23 is formed on the placement plate 2, and a mounting plate 3 is provided on the placement plate 2. The mounting plate 3 can be inserted into the mounting hole 23. A mounting groove 31 is formed on the surface of the mounting plate 3, and a dehumidification bag 32 is provided in the mounting groove 31. The dehumidification bag 32 can absorb moisture in the air.

[0041] Reference Figure 4 Two receiving grooves 231 are defined on the wall of the mounting hole 23, and are arranged opposite each other along the axis of the mounting hole 23. A fixing spring 232 is disposed within the receiving groove 231. One end of the fixing spring 232 is fixedly connected to the bottom wall of the receiving groove 231, and the other end of the fixing spring 232 is fixedly connected to a fixing bar 233. The fixing bar 233 protrudes from the receiving groove 231, and the fixing spring 232 drives the fixing bar 233 into the mounting hole 23.

[0042] Reference Figure 4 The surface of the mounting plate 3 is provided with a fixing groove 33 for the fixing bar 233 to be inserted into. When the fixing bar 233 is inserted into the fixing groove 33, the fixing spring 232 is in a non-stressed state. When the fixing bar 233 is completely located in the receiving groove 231, the fixing spring 232 is in a compressed state.

[0043] Reference Figure 5 The placement plate 2 is provided with a movable hole 24, and a retaining groove 241 is provided on the wall of the movable hole 24. The retaining groove 241 extends circumferentially along the axis of the movable hole 24. A retaining rod 242 is slidably connected to the movable hole 24. A retaining plate 243 is fixedly connected to the outer surface of the retaining rod 242. A retaining spring 244 is fixedly connected to the surface of the retaining plate 243. The retaining spring 244 is fixedly connected to the retaining groove 241 on the surface away from the retaining plate 243.

[0044] Reference Figure 5 The stop spring 244 drives the stop rod 242 to move toward the placement cavity 14. When the stop rod 242 protrudes toward the side away from the placement cavity 14 and the stop rod 242 is not inserted into the placement cavity 14, the stop spring 244 is in a compressed state; when the stop rod 242 is inserted into the placement cavity 14 and the surface of the stop rod 242 away from the placement cavity 14 is coplanar with the placement plate 2, the stop spring 244 is in a non-stressed state.

[0045] Reference Figure 5 A mounting block 34 is fixedly connected to the surface of the mounting plate 3, and a stop hole 341 is provided on the mounting block 34 for inserting the stop rod 242. When the stop rod 242 protrudes toward the side away from the placement cavity 14 of the placement plate 2, the stop rod 242 is located in the stop hole 341, and the mounting plate 3 can be fixed on the placement plate 2 at this time.

[0046] Reference Figure 2 and Figure 6 The placement plate 2 is slidably connected to a movable plate 4 on one side of the placement cavity 14. The movable plate 4 extends horizontally and moves vertically. A movable bar 41 is integrally formed on the surface of the movable plate 4 and extends vertically.

[0047] Reference Figure 2 、 Figure 6 and Figure 7 A dovetail groove 411 is defined on the surface of the movable bar 41 away from the bottom wall of the placement slot 12. The dovetail groove 411 extends toward the placement chamber 14. A water-absorbing member 42 is provided on the movable bar 41. The water-absorbing member 42 is made of materials such as quicklime and activated carbon. A dovetail block 421 is fixedly attached to the surface of the water-absorbing member 42, which can be inserted into the dovetail groove 411. The water-absorbing member 42 can be mounted on the movable bar 41 at the placement hole 21. When the water-absorbing member 42 absorbs moisture from the air, its weight increases, causing the movable plate 4 and the movable bar 41 to fall.

[0048] Reference Figure 5 and Figure 6 The movable plate 4 can block the opening of the mounting groove 31, and the mounting groove 31 is not in the moving path of the movable bar 41. When the water absorbing member 42 absorbs a sufficient amount of water, the movable plate 4 falls down, and the movable plate 4 no longer blocks the opening of the mounting groove 31, allowing the dehumidification bag 32 to dehumidify the storage chamber 14.

[0049] Reference Figure 4 and Figure 8 A fixed block 234 is fixedly connected to the surface of the fixed bar 233, and two movable blocks 43 are fixedly connected to the surface of the movable plate 4. The fixed blocks 234 are located in the movement path of the movable blocks 43. A movable inclined surface 431 is formed on the surface of the movable block 43. The distance between the movable inclined surface 431 and the mounting hole 23 gradually decreases as the movable block 43 moves toward the ground. The movable inclined surface 431 is located in the sliding path of the fixed blocks 234. When the movable plate 4 falls, the movable block 43 drives the fixed blocks 234 to move via the movable inclined surface 431, causing the fixed bar 233 to disengage from the fixing groove 33, making it easier for the staff to remove the mounting plate 3.

[0050] Reference Figure 2 、 Figure 6 and Figure 7The surface of the placement door 22 is provided with a plurality of heat dissipation holes 221. A receiving groove 222 is provided on the surface of the placement door 22 facing away from the placement chamber 14. The receiving groove 222 slides vertically. A receiving plate 223 is slidably connected within the receiving groove 222. The surface of the receiving plate 223 is provided with a plurality of receiving holes 224, which are connected to the heat dissipation holes 221. When the receiving holes 224 are connected to the heat dissipation holes 221, external air can circulate with the air in the placement chamber 14. When the receiving holes 224 are not connected to the heat dissipation holes 221, external air cannot circulate with the air in the placement chamber 14.

[0051] Reference Figure 6 and Figure 7 A receiving bar 225 is fixedly connected to the surface of the receiving plate 223. The receiving bar 225 extends along the thickness of the storage door 22 and into the storage cavity 14. A receiving block 44 is fixedly connected to the surface of the movable plate 4. The receiving block 44 is located on the side of the receiving bar 225 away from the ground and in the moving path of the receiving block 44. When the movable plate 4 falls, the movable bar 41 drives the receiving block 44 downward, allowing the receiving block 44 to move against the receiving bar 225, thereby sealing the heat dissipation hole 221 with the receiving plate 223.

[0052] The implementation principle of Example 2 is as follows: when the water-absorbing component 42 absorbs a sufficient amount of moisture, the weight of the water-absorbing component 42 increases, and the water-absorbing component 42 falls, so that the water-absorbing component 42 can drive the movable plate 4 to fall, so that the movable plate 4 does not block the installation groove 31, and the dehumidification bag 32 dehumidifies the inside of the placement cavity 14; and the movable bar 41 drives the accommodating bar 225 to move through the accommodating block 44, so that the accommodating plate 223 blocks the heat dissipation hole 221.

[0053] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present application should be included in the scope of protection of the present application.

Claims

1. A removable high-voltage switchgear with a functional structure for locally eliminating electromagnetic fields, comprising a cabinet body (1), a placement groove (12) provided on the cabinet body (1), and a through hole (13) provided on the cabinet body (1) communicating with the placement groove (12), characterized in that: An aluminum plate (131) is provided at the perforation (13), and a through hole (132) for the busbar to pass through is provided on the aluminum plate (131); a placement plate (2) is provided in the cabinet (1), and a placement cavity (14) is formed between the placement plate (2) and the bottom wall of the placement groove (12); a mounting plate (3) is provided on the placement plate (2), and a mounting groove (31) is provided on the mounting plate (3); a dehumidification bag (32) is provided in the mounting groove (31); a movable plate (4) is slidably connected to the placement plate (2), and the movable plate (4) is used to block the opening of the mounting groove (31); The movable plate (4) is detachably connected to a water absorbing member (42) for absorbing moisture; when the water absorbing member (42) is not full of water, the movable plate (4) can block the installation groove (31); when the water absorbing member (42) is full of water, the movable plate (4) does not block the installation groove (31); The placement plate (2) is provided with a mounting hole (23) for the mounting plate (3) to pass through, the placement plate (2) is slidably connected with a stop rod (242), the placement plate (2) is provided with a stop spring (244), the mounting plate (3) is provided with a stop hole (341) for the stop rod (242) to be inserted, the stop spring (244) drives the stop rod (242) to disengage from the stop hole (341), and the movable plate (4) is located on the moving path of the stop rod (242); when the movable plate (4) abuts against the stop rod (242), the stop rod (242) is inserted into the stop hole (341); when the movable plate (4) does not abut against the stop rod (242), the stop rod (242) is disengaged from the stop hole (341).

2. The removable high-voltage switchgear with a local electromagnetic field elimination function structure according to claim 1, characterized in that: A fixing bar (233) is slidably connected to the placement plate (2); a fixing groove (33) for inserting the fixing bar (233) is provided on the installation plate (3); a moving block (43) is provided on the movable plate (4); the fixing bar (233) is located on a moving path of the moving block (43); the moving block (43) drives the fixing bar (233) to disengage from the fixing groove (33); when the fixing bar (233) disengages from the fixing groove (33), the movable plate (4) does not block the installation groove (31).

3. The removable high-voltage switchgear with a local electromagnetic field elimination function structure according to claim 2, characterized in that: The placement plate (2) is provided with a fixing spring (232), the fixing spring (232) drives the fixing bar (233) to be inserted into the fixing groove (33), the fixing bar (233) is provided with a fixing block (234), the fixing block (234) is located on the moving path of the moving block (43), the moving block (43) is provided with a moving inclined surface (431), and the moving block (43) drives the fixing block (234) to move via the moving inclined surface (431).

4. The removable high-voltage switchgear with a local electromagnetic field elimination functional structure according to claim 1, characterized in that: The placement plate (2) is provided with a placement hole (21), the placement hole (21) is detachably connected to a placement door (22), the placement door (22) is provided with a plurality of heat dissipation holes (221), and the water absorbing member (42) is located on a side of the heat dissipation holes (221) facing the bottom wall of the placement groove (12).

5. The removable high-voltage switchgear with a local electromagnetic field elimination functional structure according to claim 4, characterized in that: A receiving plate (223) is slidably connected to the placement door (22), and the receiving plate (223) is used to block the opening of the heat dissipation hole (221). The receiving plate (223) is provided with a receiving bar (225), and the movable plate (4) is provided with a receiving block (44). The receiving bar (225) is located on the moving path of the receiving block (44); when the movable plate (4) opens the mounting groove (31), the receiving plate (223) blocks the heat dissipation hole (221).

6. The removable high-voltage switchgear with a local electromagnetic field elimination structure according to claim 1, characterized in that: The water absorbing member (42) is provided with a dovetail block (421), and a dovetail groove (411) is provided on the surface of the movable plate (4) facing the placement plate (2); when the dovetail block (421) is inserted into the dovetail groove (411), the water absorbing member (42) is fixed on the movable plate (4).

Images