Explosion-proof medium-frequency power supply cabinet

Abstract

The invention discloses an explosion-proof medium-frequency power supply cabinet, and the cabinet comprises a power supply cabinet which comprises a power supply cabinet body and a supporting seat, and the supporting seat provides support for the power supply cabinet body; the cabinet door explosion-proof piece is arranged on the power supply cabinet, the cabinet door explosion-proof piece comprises an explosion-proof supporting piece and a sealing cabinet door piece, and the explosion-proof supporting piece is arranged on the power supply cabinet body and provides explosion-proof buffer support for the sealing cabinet door piece connected with the explosion-proof supporting piece; the sealing cabinet door member performs plugging and explosion-proof pressure relief on the notch of the power supply cabinet body through the explosion-proof supporting member. And the ventilation, heat dissipation and dehumidification part is arranged on the power supply cabinet body and is used for performing ventilation and heat dissipation on electrical components in the power supply cabinet body. The explosion-proof power cabinet is reasonable in structural design, high in pressure relief efficiency, good in explosion-proof effect and capable of remarkably reducing personnel and property loss caused by detonation in the power cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of power cabinets, and more specifically, to an explosion-proof medium-frequency power cabinet. Background Art

[0002] A medium-frequency power cabinet refers to a power system device that integrates centralized control, protection, power distribution, and monitoring. It is mainly used for the input, output, and control of the load power supply, including functions such as power conversion, filtering, voltage stabilization, backup, and DC power supply. It is usually installed in a control room or around equipment and is used together with devices such as controllers, PLCs, or frequency converters to provide the power required by the control equipment.

[0003] Since a large amount of heat is generated during the use of a medium-frequency power cabinet and heat dissipation and ventilation are required, existing medium-frequency power cabinets may inhale dust into the power cabinet during the heat dissipation and ventilation process, resulting in poor ventilation performance inside the power cabinet. Excessive dust accumulation is likely to pose a risk of explosion of dust and flammable gases. When an explosion occurs inside the power cabinet, it will cause damage to the personnel and property around the power cabinet. Therefore, it is of great practical value to design an explosion-proof medium-frequency power cabinet with a pressure relief function. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides an explosion-proof medium-frequency power cabinet, and specifically adopts the following technical solutions:

[0005] An explosion-proof medium-frequency power cabinet, comprising:

[0006] A power cabinet, the power cabinet includes a power cabinet body and a support base, and the support base provides support on the power cabinet body;

[0007] A cabinet door explosion-proof member, which is arranged on the power cabinet, and the cabinet door explosion-proof member includes an explosion-proof support member and a sealed cabinet door member. The explosion-proof support member is on the power cabinet body and provides explosion-proof buffer support for the connected sealed cabinet door member; the sealed cabinet door member plugs and provides explosion-proof pressure relief for the notch of the power cabinet body through the explosion-proof support member;

[0008] A ventilation, heat dissipation, and dehumidification member, which is arranged on the power cabinet body to ventilate and dissipate heat from the electrical components inside the power cabinet body.

[0009] Preferably, the explosion-proof support member includes a first explosion-proof support member and a second explosion-proof support member, and both the first explosion-proof support member and the second explosion-proof support member are arranged on the power cabinet body.

[0010] Preferably, the first explosion-proof support member includes a first upper explosion-proof support member, a first middle explosion-proof support member, and a first lower explosion-proof support member, and the first upper explosion-proof support member, the first middle explosion-proof support member, and the first lower explosion-proof support member are all arranged on one side groove wall of the power supply cabinet body.

[0011] Preferably, the first upper explosion-proof support member includes an explosion-proof transmission support member, an explosion-proof buffer member, an explosion-proof hinge member, and a buffer adjustment member. The explosion-proof transmission support member is arranged on the power supply cabinet body, the explosion-proof buffer member and the buffer adjustment member are both arranged on the explosion-proof transmission support member, and the explosion-proof hinge member is arranged on the explosion-proof buffer member.

[0012] Preferably, the explosion-proof transmission support member includes an explosion-proof support seat, and the explosion-proof support seat is arranged on the upper part of one side groove wall of the power supply cabinet body for providing support for the explosion-proof buffer member and the buffer adjustment member.

[0013] Preferably, the explosion-proof buffer member includes an explosion-proof buffer tube, an explosion-proof buffer shaft, an explosion-proof sliding seat, an explosion-proof guide tube, and a spring. The explosion-proof buffer tube is axially and slidably fitted into the tube at the other end of the explosion-proof support seat, one end of the explosion-proof buffer shaft is inserted into the tube at the other end of the explosion-proof buffer tube, the explosion-proof sliding seat is axially and slidably fitted into the explosion-proof buffer tube, and one end of the explosion-proof sliding seat is connected to one end of the explosion-proof buffer shaft. The explosion-proof guide tube is fixedly fitted into the tube at the other end of the explosion-proof buffer tube, and the explosion-proof guide tube is axially and slidably sleeved on the explosion-proof buffer shaft. The spring is sleeved outside the explosion-proof buffer shaft between the explosion-proof sliding seat and the explosion-proof guide tube.

[0014] Preferably, the explosion-proof hinge member includes a hinge seat, a hinge ball, and a hinge cover plate. The hinge seat is arranged on the sealed cabinet door member, the hinge ball is hinged to the hinge seat through the hinge cover plate, and the hinge ball is fixedly connected to the other end of the explosion-proof buffer shaft.

[0015] Preferably, the buffer adjustment member includes an adjustment power member and an axial limit member, and the adjustment power member and the axial limit member are both arranged on the explosion-proof transmission support member; the adjustment power member includes a motor, an internally threaded tube, and a screw rod. The motor is arranged on one end face of the explosion-proof support seat, the internally threaded tube is fixedly penetrated through one end face of the explosion-proof buffer tube, one end of the screw rod rotates through one end face of the explosion-proof support seat and is connected to the rotating shaft of the motor, and the other end of the screw rod is fitted into the internally threaded tube in a matching manner.

[0016] Preferably, the first explosion-proof middle support member has the same structure as the first explosion-proof upper support member. The first explosion-proof middle support member is arranged on one side groove wall of the power supply cabinet directly below the first explosion-proof upper support member and is connected to the sealed cabinet door member. Moreover, the connection manner between the first explosion-proof middle support member and the sealed cabinet door member is the same as that between the first explosion-proof upper support member and the sealed cabinet door member. The first explosion-proof lower support member has the same structure as the first explosion-proof upper support member. The first explosion-proof lower support member is arranged on one side groove wall of the power supply cabinet directly below the first explosion-proof middle support member and is connected to the sealed cabinet door member. Moreover, the connection manner between the first explosion-proof lower support member and the sealed cabinet door member is the same as that between the first explosion-proof upper support member and the sealed cabinet door member. The second explosion-proof support member has the same structure as the first explosion-proof support member. The second explosion-proof support member is arranged on the other side groove wall of the power supply cabinet, and the second explosion-proof support member is symmetrical with the first explosion-proof support member.

[0017] Preferably, the sealed cabinet door member includes a cabinet door and a cabinet door lock. The cabinet door is arranged on the first explosion-proof support member, and the cabinet door lock is arranged on the cabinet door. One side edge of the cabinet door is respectively connected to the hinge seats of the first explosion-proof upper support member, the first explosion-proof middle support member, and the first explosion-proof lower support member. The cabinet door lock includes a lock bolt, a locking seat, and a locking opening and closing member. The lock bolt is arranged on the hinge seat of the second explosion-proof support member, the locking seat is arranged on the cabinet door, and the locking opening and closing member can be locked with the lock bolt on the locking seat.

[0018] The present invention has at least the following beneficial effects:

[0019] 1) The explosion-proof medium-frequency power supply cabinet of the present invention has a reasonable structural design, high pressure relief efficiency, good explosion-proof effect, and can significantly reduce the personnel and property losses caused by the internal deflagration of the power supply cabinet.

[0020] 2) The explosion-proof medium-frequency power supply cabinet of the present invention is provided with explosion-proof support members and a cabinet door. When deflagration occurs inside the power supply cabinet, under the pushing of the deflagration gas, the cabinet door is opened from the top through the buffering action of the explosion-proof support members, so that the deflagration gas is ejected upward for pressure relief, in order to prevent the cabinet door from being pushed out and the high-speed ejection of the deflagration gas from causing damage to the surrounding personnel and property. The pressure relief and explosion-proof effects are significantly improved, and the personnel and property losses are significantly reduced.

[0021] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Description of the Drawings

[0022] Figure 1 It is the front view of the explosion-proof medium-frequency power supply cabinet of the present invention;

[0023] Figure 2 Schematic diagram of the three-dimensional structure on the left side of the explosion-proof medium-frequency power supply cabinet of the present invention;

[0024] Figure 3 Schematic diagram of the three-dimensional structure on the right side of the explosion-proof medium-frequency power supply cabinet of the present invention;

[0025] Figure 4 For the explosion-proof medium-frequency power supply cabinet of the present invention Figure 3 Partial enlarged view of B in it;

[0026] Figure 5 Schematic diagram of the three-dimensional structure on the rear side of the explosion-proof medium-frequency power supply cabinet of the present invention;

[0027] Figure 6 For the explosion-proof medium-frequency power supply cabinet of the present invention Figure 5 Partial enlarged view of C in it;

[0028] Figure 7 For the explosion-proof medium-frequency power supply cabinet of the present invention Figure 1 Schematic diagram of the three-dimensional structure of the sectional view in the A-A direction in it;

[0029] Figure 8 For the explosion-proof medium-frequency power supply cabinet of the present invention Figure 7 Partial enlarged view of D in it;

[0030] Figure 9 Schematic diagram of the connection relationship of the cabinet door lock of the explosion-proof medium-frequency power supply cabinet of the present invention.

[0031] Wherein: 1 - power supply cabinet body, 2 - support seat, 3 - second explosion-proof support member, 4 - first explosion-proof middle support member, 5 - first explosion-proof lower support member, 6 - explosion-proof support seat, 7 - explosion-proof buffer tube, 8 - explosion-proof buffer shaft, 9 - explosion-proof sliding seat, 10 - explosion-proof guide tube, 11 - spring, 12 - hinge seat, 13 - hinge ball, 14 - motor, 15 - internally threaded tube, 16 - screw rod, 17 - limit support plate, 18 - thrust ball bearing, 19 - limit rotating plate, 20 - cabinet door, 21 - lock bolt, 22 - locking seat, 23 - locking spring, 24 - lock tongue, 25 - heat dissipation fan, 26 - dehumidification through hole. Detailed implementation mode

[0032] Hereinafter, the technical solution of the present invention will be described in detail by way of examples with reference to the accompanying drawings. It should be noted here that the description of these example embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention.

[0033] In this text, the term "and / or" is merely a description of the associated relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, B exists alone, and both A and B exist simultaneously. In this text, the term " / and" is a description of another associated object relationship, indicating that there can be two relationships. For example, A / and B can represent two situations: A exists alone, and both A and B exist. Additionally, in this text, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0034] According to Figures 1 - 9 As shown, an explosion-proof medium-frequency power cabinet includes a power cabinet, a cabinet door explosion-proof component, and a ventilation, heat dissipation, and dehumidification component. The cabinet door explosion-proof component and the ventilation, heat dissipation, and dehumidification component are both arranged on the power cabinet. The power cabinet includes a power cabinet body 1 and a support base 2. The power cabinet body 1 is in the shape of a rectangular box, and the support base 2 is in the shape of a rectangular tube. The cross-sectional dimension of the support base 2 is smaller than the bottom end face dimension of the power cabinet body 1. One end of the support base 2 is fixedly arranged on the bottom end face of the power cabinet body 1, so that the power cabinet body 1 is arranged on the ground through the support base 2. Electrical components are installed inside the power cabinet body 1. It should be noted that the support base 2 can cooperate with the ventilation, heat dissipation, and dehumidification component to perform dehumidification operations on the lower part of the power cabinet body 1, preventing rust on the bottom of the power cabinet body 1.

[0035] The cabinet door explosion-proof component includes an explosion-proof support component and a sealed cabinet door component. The explosion-proof support component is arranged on the power cabinet body 1, and the sealed cabinet door component is arranged on the explosion-proof support component. The explosion-proof support component includes a first explosion-proof support component and a second explosion-proof support component 3. Both the first explosion-proof support component and the second explosion-proof support component 3 are arranged on the power cabinet body 1.

[0036] The first explosion-proof support component includes a first explosion-proof upper support component, a first explosion-proof middle support component 4, and a first explosion-proof lower support component 5. The first explosion-proof upper support component, the first explosion-proof middle support component 4, and the first explosion-proof lower support component 5 are all arranged on one side groove wall of the power cabinet body 1. The first explosion-proof upper support component includes an explosion-proof transmission support component, an explosion-proof buffer component, an explosion-proof hinge component, and a buffer adjustment component. The explosion-proof transmission support component is arranged on the power cabinet body 1, the explosion-proof buffer component and the buffer adjustment component are both arranged on the explosion-proof transmission support component, and the explosion-proof hinge component is arranged on the explosion-proof buffer component.

[0037] The explosion-proof transmission support component includes an explosion-proof support seat 6. The explosion-proof support seat 6 is in the shape of a square tube, one end face of the explosion-proof support seat 6 is closed, and the explosion-proof support seat 6 is horizontally and fixedly arranged on the upper part of one side groove wall of the power cabinet body 1 to provide support for the explosion-proof buffer component and the buffer adjustment component.

[0038] The explosion-proof buffer member includes an explosion-proof buffer tube 7, an explosion-proof buffer shaft 8, an explosion-proof sliding seat 9, an explosion-proof guide tube 10 and a spring 11. The explosion-proof buffer tube 7 is axially and slidably fitted into the tube at the other end of the explosion-proof support seat 6. Further, the length of the explosion-proof buffer tube 7 is less than the length of the explosion-proof support seat 6, and one end face of the explosion-proof buffer tube 7 is closed. One end of the explosion-proof buffer shaft 8 is inserted into the tube at the other end of the explosion-proof buffer tube 7. Further, the inner diameter of the explosion-proof buffer shaft 8 is less than the inner diameter of the inner circle of the explosion-proof buffer tube 7. The explosion-proof sliding seat 9 is axially and slidably fitted into the explosion-proof buffer tube 7, and one end of the explosion-proof sliding seat 9 is fixedly connected to one end of the explosion-proof buffer shaft 8. Further, the outer diameter of the explosion-proof sliding seat 9 is not greater than the inner diameter of the explosion-proof buffer seat. The explosion-proof guide tube 10 is fixedly fitted into the tube at the other end of the explosion-proof buffer tube 7, and the explosion-proof guide tube 10 is axially and slidably sleeved on the explosion-proof buffer shaft 8. Further, the outer diameter of the explosion-proof guide tube 10 is not greater than the inner diameter of the explosion-proof buffer tube 7, and the inner diameter of the inner circle of the explosion-proof guide tube 10 is not less than the diameter of the explosion-proof buffer shaft 8. The explosion-proof guide tube 10 and the explosion-proof sliding seat 9 cooperate to provide stable guiding support for the explosion-proof buffer shaft 8 to reciprocate axially in the explosion-proof buffer tube 7. The spring 11 is sleeved outside the explosion-proof buffer shaft 8, and one end of the spring 11 is connected to the explosion-proof sliding seat 9, and the other end of the spring 11 is connected to the explosion-proof guide tube 10 to provide buffering when the explosion-proof buffer shaft 8 slides outwards in the explosion-proof buffer tube 7.

[0039] The explosion-proof hinge member includes a hinge seat 12, a hinge ball 13 and a hinge cover plate. The hinge seat 12 is provided on the sealed cabinet door member, the hinge ball 13 is provided on the explosion-proof buffer member, and the hinge ball 13 is hinged to the hinge seat 12 through the hinge cover plate. The bottom end of the hinge seat 12 is fixedly provided on the sealed cabinet door member, the top end of the hinge seat 12 is provided with a hinge groove, the hinge groove is hemispherical, and the radius of the hinge groove is the same as the radius of the hinge ball 13. The hinge ball 13 is rotatably and fittingly installed in the hinge groove. The hinge cover plate is provided with a hinge through hole, one end face of the hinge cover plate is fixedly provided on the top surface of the hinge seat 12, and the protruding part of the hinge ball 13 from the hinge through hole is fixedly connected to the other end of the explosion-proof buffer shaft 8. It should be noted that the diameter of the hinge through hole is greater than the diameter of the explosion-proof buffer shaft 8, so that the hinge seat 12 swings up and down and left and right on the hinge ball 13.

[0040] The buffer adjusting member includes an adjusting power member and an axial limiting member, and both the adjusting power member and the axial limiting member are arranged on the explosion-proof transmission support member. The adjusting power member includes a motor 14, an internally threaded tube 15, and a screw rod 16. The motor 14 is fixedly arranged on one end face of the explosion-proof support base 6. The internally threaded tube 15 is fixedly penetrated through one end face of the explosion-proof buffer tube 7. One end of the screw rod 16 horizontally rotates through one end face of the explosion-proof support base 6 and is fixedly connected to the rotating shaft of the motor 14. The other end of the screw rod 16 is fitted and installed in the internally threaded tube 15. When the motor 14 drives the screw rod 16 to rotate, it will drive the internally threaded tube 15 to slide axially back and forth on the screw rod 16. The reciprocatingly sliding internally threaded tube 15 drives the explosion-proof buffer tube 7 to slide axially back and forth in the explosion-proof support base 6. The reciprocatingly sliding explosion-proof buffer tube 7 adjusts the buffering force on the explosion-proof buffer shaft 8 through the explosion-proof guide tube 10 and the spring 11, and adjusts the upward opening size of the sealed cabinet door member to meet the explosion pressure relief requirements inside the power cabinet body 1 under different usage environments. It should be noted that after the explosion gas inside the power cabinet body 1 is timely pressure-relieved upward through the sealed cabinet door member, it will not cause the sealed cabinet door member to break away from the power cabinet and fly out to hurt people, and the deflagration gas inside the power cabinet will not cause harm to the surrounding personnel due to upward jet pressure relief.

[0041] The axial limiting member includes a limiting support plate 17, a thrust ball bearing 18, and a limiting rotating plate 19. The limiting support plate 17 is in the shape of an annular plate. The limiting support plate 17 is fixedly embedded in the tube of the explosion-proof support base 6, and the inner ring of the limiting support plate 17 is sleeved outside the screw rod 16. After the thrust ball bearing 18 is sleeved outside the screw rod 16, one end face of the thrust ball bearing 18 is connected to the limiting support plate 17. The limiting rotating plate 19 is in the shape of an annular plate. The outer diameter of the limiting rotating plate 19 is smaller than the inner diameter of the explosion-proof support base 6. The limiting rotating plate 19 is fixedly sleeved on the screw rod 16, and the limiting rotating plate 19 is connected to the other end face of the thrust ball bearing 18. To increase the axial tensile force borne by the screw rod 16.

[0042] The first explosion-proof middle support member 4 has the same structure as the first explosion-proof upper support member. The first explosion-proof middle support member 4 is arranged on one side groove wall of the power cabinet body 1 directly below the first explosion-proof upper support member and is hinged to the sealed cabinet door member. And the connection method between the first explosion-proof middle support member 4 and the sealed cabinet door member is the same as the connection method between the first explosion-proof upper support member and the sealed cabinet door member. It should be noted that the buffering force of the spring 11 of the first explosion-proof middle support member 4 is adjusted through the motor 14 of the first explosion-proof middle support member 4, so that the sealed cabinet door member rotates around the first explosion-proof lower support member 5 and opens upward for pressure relief along the vertical plane.

[0043] The first explosion-proof lower support member 5 has the same structure as the first explosion-proof upper support member. The first explosion-proof lower support member 5 is arranged on one side groove wall of the power supply cabinet body 1 directly below the first explosion-proof middle support member 4 and is hinged to the sealed cabinet door member. And the connection manner between the first explosion-proof lower support member 5 and the sealed cabinet door member is the same as that between the first explosion-proof upper support member and the sealed cabinet door member. It should be noted that the buffer force of the spring 11 of the first explosion-proof lower support member 5 is adjusted by the motor 14 of the first explosion-proof lower support member 5, so that the sealed cabinet door member rotates around the first explosion-proof lower support member 5 along the vertical plane to open upward for pressure relief.

[0044] The second explosion-proof support member 3 has the same structure as the first explosion-proof support member. The second explosion-proof support member 3 is arranged on the other side groove wall of the power supply cabinet body 1, and the second explosion-proof support member 3 is symmetric with the first explosion-proof support member. The sealed cabinet door member includes a cabinet door 20 and a cabinet door lock. The cabinet door 20 is arranged on the first explosion-proof support member, and the cabinet door lock is arranged on the cabinet door 20. One side edge of the cabinet door 20 is fixedly connected to the hinge seats 12 of the first explosion-proof upper support member, the first explosion-proof middle support member 4, and the first explosion-proof lower support member 5 respectively. So that the cabinet door 20 can be opened or closed through the first explosion-proof upper support member, the first explosion-proof middle support member 4, and the first explosion-proof lower support member 5 to seal and open the notch of the power supply cabinet body 1. Further, a sealing ring is arranged on the inner side surface of the cabinet door 20. The sealing ring is in a rectangular ring shape, and the size of the sealing ring is the same as the size of the cabinet door notch. The sealing ring corresponds to the cabinet door notch on the cabinet door 20 to improve the sealing performance.

[0045] The cabinet door lock includes a locking bolt 21, a locking seat 22, and a locking opening and closing member. The locking bolt 21 is arranged on the second explosion-proof support member 3, the locking seat 22 is arranged on the cabinet door 20, and the locking opening and closing member is arranged on the locking seat 22.

[0046] The locking bolt 21 is integrally in a rectangular column shape. A locking groove is arranged on the side wall of one end of the locking bolt 21. The locking groove is used to lock and connect the second explosion-proof support member 3 and the cabinet door 20. There are three locking bolts 21, and the three locking bolts 21 are respectively arranged at the bottom ends of the three hinge seats 12 on the second explosion-proof support member 3 one by one. The locking seat 22 is in a column shape. The locking seat 22 is fixedly arranged on the outer side surface of the other side of the cabinet door 20 along the vertical direction. And a locking horizontal hole is arranged on the surface of the locking seat 22 corresponding to the locking bolt 21, and a locking blind hole is arranged in the locking horizontal hole. The locking horizontal hole is convenient for the bolt brush to be inserted to complete the locking with the locking opening and closing member.

[0047] The locking opening / closing member includes a locking spring 23, a locking tongue 24, a magnetic coil, and a permanent magnet. The locking spring 23 is disposed at the bottom of the locking blind hole, and the locking tongue 24 is slidably fitted at the orifice of the locking blind hole. The locking tongue 24 can be pushed by the locking spring 23 to insert into the locking groove, thereby locking the cabinet door 20 on the notch of the power supply cabinet body 1. The magnetic coil is fixedly disposed at the bottom of the locking blind hole. One end of the permanent magnet is fixedly connected to the bottom end surface of the locking tongue 24, and the other end of the permanent magnet is inserted into the magnetic coil. When the magnetic coil is energized with direct current to generate a magnetic field, the locking tongue 24 will be pulled downward through the permanent magnet to release the locking bolt 21, realizing the opening of the cabinet door 20. Further, three sets of the locking opening / closing members are provided, and the three sets of the locking opening / closing members correspond to the three locking bolts 21 one by one to improve the locking stability of the cabinet door 20.

[0048] The ventilation, heat dissipation, and dehumidification member includes a heat dissipation fan 25. One end of the heat dissipation fan 25 is connected through the top surface of the power supply cabinet body 1 to discharge the hot air in the power supply cabinet body 1 from the heat dissipation through holes on the bottom surface of the power supply cabinet body 1. The discharged hot air is in the support base 2 and is discharged from the dehumidification through holes 26 on the side wall of the support base 2 to perform dehumidification operation on the bottom of the power supply cabinet body 1 and prevent the bottom of the power supply cabinet body 1 from rusting.

[0049] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. An explosion-proof medium frequency power supply cabinet, characterized in that: include: A power supply cabinet, the power supply cabinet comprising a power supply cabinet body and a support base, the support base providing support on the power supply cabinet body; The cabinet door explosion-proof component is arranged on the power cabinet, and the cabinet door explosion-proof component includes an explosion-proof support component and a sealed cabinet door component. The explosion-proof support component is on the power cabinet body and provides explosion-proof buffer support for the connected sealed cabinet door component; the sealed cabinet door component seals the notch of the power cabinet body and implements explosion-proof pressure relief through the explosion-proof support component; The ventilation, heat dissipation and dehumidification component is arranged on the power cabinet to ventilate and dissipate heat for the electrical components inside the power cabinet.

2. The explosion-proof medium frequency power supply cabinet according to claim 1 is characterized in that: The explosion-proof support member includes a first explosion-proof support member and a second explosion-proof support member, and the first explosion-proof support member and the second explosion-proof support member are both arranged on the power supply cabinet.

3. The explosion-proof medium frequency power supply cabinet according to claim 2 is characterized in that: The first explosion-proof support member includes a first explosion-proof upper support member, a first explosion-proof middle support member and a first explosion-proof lower support member, and the first explosion-proof upper support member, the first explosion-proof middle support member and the first explosion-proof lower support member are all arranged on a groove wall on one side of the power cabinet.

4. The explosion-proof medium frequency power supply cabinet according to claim 3 is characterized in that: The first explosion-proof upper support member includes an explosion-proof transmission support member, an explosion-proof buffer member, an explosion-proof hinge member and a buffer adjustment member. The explosion-proof transmission support member is arranged on the power supply cabinet. The explosion-proof buffer member and the buffer adjustment member are both arranged on the explosion-proof transmission support member. The explosion-proof hinge member is arranged on the explosion-proof buffer member.

5. The explosion-proof medium frequency power supply cabinet according to claim 4 is characterized in that: The explosion-proof transmission support member comprises an explosion-proof support seat, which is arranged on the upper part of the groove wall on one side of the power supply cabinet and is used to provide support for the explosion-proof buffer member and the buffer adjustment member.

6. The explosion-proof medium frequency power supply cabinet according to claim 5 is characterized in that: The explosion-proof buffer component includes an explosion-proof buffer tube, an explosion-proof buffer shaft, an explosion-proof sliding seat, an explosion-proof guide tube and a spring. The explosion-proof buffer tube is axially slidably embedded in the tube at the other end of the explosion-proof support seat, one end of the explosion-proof buffer shaft is inserted into the tube at the other end of the explosion-proof buffer tube, the explosion-proof sliding seat is axially slidably embedded in the explosion-proof buffer tube, and one end of the explosion-proof sliding seat is connected to one end of the explosion-proof buffer shaft, the explosion-proof guide tube is fixedly embedded in the tube at the other end of the explosion-proof buffer tube, and the explosion-proof guide tube is axially slidably sleeved on the explosion-proof buffer shaft, and the spring is sleeved outside the explosion-proof buffer shaft between the explosion-proof sliding seat and the explosion-proof guide tube.

7. The explosion-proof medium frequency power supply cabinet according to claim 6 is characterized in that: The explosion-proof hinged component includes a hinged seat, a hinged ball and a hinged cover plate. The hinged seat is arranged on the sealed cabinet door component. The hinged ball is hinged on the hinged seat through the hinged cover plate, and the hinged ball is fixedly connected to the other end of the explosion-proof buffer shaft.

8. The explosion-proof medium frequency power supply cabinet according to claim 7 is characterized in that: The buffer adjustment member includes an adjustment power member and an axial limit member, and the adjustment power member and the axial limit member are both arranged on the explosion-proof transmission support member; the adjustment power member includes a motor, an internal threaded tube and a screw, and the motor is arranged on one end face of the explosion-proof support seat, and the internal threaded tube is fixedly passed through one end face of the explosion-proof buffer tube, and one end of the screw is rotated through one end face of the explosion-proof support seat and then connected to the rotating shaft of the motor, and the other end of the screw is fitted and embedded in the internal threaded tube.

9. The explosion-proof medium frequency power supply cabinet according to claim 8, characterized in that: The first explosion-proof middle support member has the same structure as the first explosion-proof upper support member, and the first explosion-proof middle support member is arranged on the groove wall on one side of the power cabinet body directly below the first explosion-proof upper support member and is connected to the sealed cabinet door member; and the connection method between the first explosion-proof middle support member and the sealed cabinet door member is the same as the connection method between the first explosion-proof upper support member and the sealed cabinet door member; the first explosion-proof lower support member has the same structure as the first explosion-proof upper support member, and the first explosion-proof lower support member is arranged on the groove wall on one side of the power cabinet body directly below the first explosion-proof middle support member and is connected to the sealed cabinet door member; and the connection method between the first explosion-proof lower support member and the sealed cabinet door member is the same as the connection method between the first explosion-proof upper support member and the sealed cabinet door member; the second explosion-proof support member has the same structure as the first explosion-proof support member, and the second explosion-proof support member is arranged on the groove wall on the other side of the power cabinet body, and the second explosion-proof support member is symmetrical with the first explosion-proof support member.

10. The explosion-proof medium frequency power supply cabinet according to claim 9, characterized in that: The sealed cabinet door component includes a cabinet door and a cabinet door lock, the cabinet door is arranged on the first explosion-proof support component, and the cabinet door lock is arranged on the cabinet door; one side of the cabinet door is respectively connected to the hinged seats of the first explosion-proof upper support component, the first explosion-proof middle support component and the first explosion-proof lower support component; the cabinet door lock includes a locking bolt, a locking seat and a locking opening and closing component, the locking bolt is arranged on the hinged seat of the second explosion-proof support component, the locking seat is arranged on the cabinet door, and the locking opening and closing component can be locked with the locking bolt on the locking seat.

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