Dustproof and anti-interference power cabinet

Abstract

The utility model relates to the technical field of electric power cabinets, in particular to a dustproof anti-interference electric power cabinet which comprises a cabinet body, a cabinet door is hinged to the cabinet body, fixing strip plates are installed on the periphery of the inner side of the cabinet door, and sealing pieces are arranged on the outer sides of the fixing strip plates. The two sides of the sealing piece are provided with movable columns movably inserted in the strip fixing plate in a penetrating mode, the ends, connected with the sealing piece, of the movable columns are sleeved with extension springs, a rotating shaft penetrating through the cabinet door is arranged in the middle between the strip fixing plate and the sealing piece, and a positioning block is fixed to the end, located on the inner side of the cabinet door, of the rotating shaft. According to the dustproof anti-interference power cabinet, the protection performance in dusty and strong electromagnetic interference environments can be improved, the service life of internal electrical equipment is effectively prolonged, the failure rate caused by environmental factors is reduced, and the overall stability and the operation efficiency of a power system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power cabinets, and particularly relates to a dust-proof and interference-proof power cabinet. Background Technique

[0002] A power cabinet is a box or cabinet structure specifically designed for installing and protecting power equipment, control equipment, electrical components and their related auxiliary components. Its materials are usually made of steel, stainless steel or aluminum alloy, etc., which have good corrosion resistance and structural strength. It is widely used in power distribution, energy management, industrial automation and various occasions requiring power control and distribution.

[0003] At present, in industrial production, outdoor power distribution facilities and specific environments, power cabinets often face severe challenges, especially the problems of dust pollution and electromagnetic interference. Although traditional power cabinets have basic protection functions, in a high-dust environment, dust is easy to penetrate into the interior of the cabinet and accumulate on electrical components, which not only affects heat dissipation, but may also cause short circuits and reduce the service life of equipment. At the same time, if external electromagnetic interference (EMI) is not effectively shielded, it will interfere with the transmission of power signals, resulting in system malfunctions or performance degradation. Therefore, there is an urgent need in the market for a power cabinet that can effectively prevent dust and resist electromagnetic interference efficiently to adapt to more demanding application scenarios. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dust-proof and interference-proof power cabinet to solve the problems proposed in the above background technique, that is, the protection of power cabinets in current industries and specific environments is insufficient to cope with the penetration problem in a high-dust environment, resulting in poor heat dissipation, short-circuit risk and shortened equipment life, and the lack of effective electromagnetic shielding is likely to cause signal interference and system errors.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dust-proof and interference-proof power cabinet, including a cabinet body, a cabinet door is hinged on the cabinet body, fixing strips are installed around the inner side of the cabinet door, sealing members are arranged on the outer sides of the fixing strips, movable columns are movably inserted through the fixing strips on both sides of the sealing members, a tension spring is sleeved outside the end of the movable column connected to the sealing member, and a rotating shaft penetrating through the cabinet door is arranged in the middle between the fixing strip and the sealing member, and a positioning block is fixed at one end of the rotating shaft located inside the cabinet door.

[0006] Preferably, a high-density rubber sealing strip is adhesively fixed on one side of the outer side of the sealing member, and an electromagnetic sealing gasket is adhesively fixed on one side of the inner side of the sealing member.

[0007] Preferably, damping rings are arranged at the joints of the cabinet door and the rotating shaft, and the rotating shaft is movably inserted inside the damping rings.

[0008] Preferably, arc-shaped blocks are provided around the outer wall of the cabinet door, and a dial block is fixed to the outer end of the rotating shaft located outside the cabinet door, and the dial block at the outer end of the rotating shaft is slidably connected to the arc-shaped block.

[0009] Preferably, strip-shaped sockets that match the structure of the high-density rubber sealing strip are provided on the inner walls around the edge of the cabinet body.

[0010] Preferably, clamping columns are symmetrically provided around the inner side of the cabinet door, and clamping holes adapted to the structure of the clamping columns are provided at both ends of the fixing strip plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The dust-proof and anti-interference power cabinet can improve the protection performance in a dusty and strong electromagnetic interference environment, effectively extend the service life of internal electrical equipment, reduce the failure rate caused by environmental factors, improve the overall stability and operation efficiency of the power system, and meet the high requirements of modern industry and special environments for power equipment. The dust-proof and anti-interference power cabinet realizes an effective function of blocking dust intrusion by arranging sealing members at the four corners on the inner side of the cabinet door, and the high-density rubber sealing strip provided on one side of the sealing member is embedded in the strip-shaped sockets on the inner wall of the edge of the cabinet body. And the electromagnetic sealing gasket provided on the other side of the sealing member will block at the four-week joints between the cabinet door and the cabinet body to realize the function of isolating external electromagnetic interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of a dust-proof and anti-interference power cabinet of the present utility model;

[0013] Figure 2 is a schematic external structural diagram of the cabinet body of a dust-proof and anti-interference power cabinet of the present utility model;

[0014] Figure 3 is a schematic side view structural diagram of the connection between the fixing strip plate and the cabinet door of a dust-proof and anti-interference power cabinet of the present utility model.

[0015] In the figure: 1, cabinet body; 2, cabinet door; 3, fixing strip plate; 4, sealing member; 41, high-density rubber sealing strip; 42, electromagnetic sealing gasket; 5, movable column; 6, tension spring; 7, rotating shaft; 8, positioning block; 9, damping ring; 10, clamping column; 11, arc-shaped block. DETAILED DESCRIPTION OF THE INVENTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a dust-proof and anti-interference power cabinet, including a cabinet body 1, a cabinet door 2 is hinged on the cabinet body 1, the outer shells of the cabinet body 1 and the cabinet door 2 are both made of conductive materials and electroplated to form a continuous shielding layer, effectively constituting a Faraday cage to shield external electromagnetic fields. Fixed strips 3 are installed around the inner side of the cabinet door 2, seals 4 are provided on the outer sides of the fixed strips 3, movable columns 5 are movably inserted through the fixed strips 3 on both sides of the seal 4, and a tension spring 6 is sleeved outside the end of the movable column 5 connected to the seal 4. The two ends of the tension spring 6 are respectively connected to the corresponding sides of the seal 4 and the fixed strip 3, and a rotating shaft 7 penetrating through the cabinet door 2 is provided in the middle between the fixed strip 3 and the seal 4. A positioning block 8 is welded and fixed at one end of the rotating shaft 7 inside the cabinet door 2. The outer end of the positioning block 8 is of an arc structure, and a pressing port matching the outer end structure of the positioning block 8 is provided in the middle of the seal 4. When the cabinet door 2 of this structure is closed at the front end of the cabinet body 1, the rotating shaft 7 can rotate on the cabinet door 2 to make the positioning block 8 press the seal 4. When the seal 4 is stressed, it will slide on the fixed strip 3 through the movable column 5 to produce a certain degree of expansion and contraction. In this way, the seal 4 will be placed at the surrounding joints between the cabinet door 2 and the cabinet body 1, which can not only effectively prevent dust from invading outside the cabinet body 1, but also effectively isolate external electromagnetic interference, thereby improving the protection performance of the cabinet body 1 in a dusty and strong electromagnetic interference environment, effectively extending the service life of internal electrical equipment, reducing the failure rate caused by environmental factors, improving the overall stability and operation efficiency of the power system, meeting the high requirements of modern industry and special environments for power equipment. At the same time, when the positioning block 8 cancels the limiting pressure on the seal 4, the seal 4 can quickly contract to smoothly open the cabinet door 2. A high-density rubber sealing strip 41 is adhesively fixed on one side of the outer side of the seal 4. The high-density rubber sealing strip 41 is made of high-quality rubber raw materials and has a tight molecular structure and a high-density sealing material. Strip-shaped insertion grooves matching the structure of the high-density rubber sealing strip 41 on the outer side of the seal 4 are provided on the inner walls around the edge of the cabinet body 1, and an electromagnetic sealing gasket 42 is adhesively fixed on one side of the inner side of the seal 4. With this structure, the seal 4 can embed the high-density rubber sealing strip 41 into the strip-shaped insertion grooves on the inner wall of the edge of the cabinet body 1 to achieve an effective dust-blocking effect, and the electromagnetic sealing gasket 42 will also be placed at the surrounding joints between the cabinet door 2 and the cabinet body 1, significantly enhancing the defense ability against electromagnetic interference, effectively protecting the internal electrical equipment from external interference, and improving the stability of the power system and the accuracy of data transmission. Damping rings 9 are fixedly embedded at the joints between the cabinet door 2 and the rotating shaft 7, and the rotating shaft 7 is movably inserted inside the damping ring 9. With this structure, the damping ring 9 can increase the friction force received when the rotating shaft 7 rotates, so as to improve the stability of the rotating shaft 7 when it rotates to a suitable angular position, and avoid the loosening of the rotating shaft 7 from affecting the normal positioning of the positioning block 8. Arc-shaped blocks 11 are welded and fixed around the outer wall of the cabinet door 2.Moreover, a dial block is fixedly welded to one end of the rotating shaft 7 located outside the cabinet door 2, and the dial block at the outer end of the rotating shaft 7 is slidably connected to the arc-shaped block 11. When the rotating shaft 7 of this structure rotates, the dial block at the outer end will slide on the arc-shaped block 11 synchronously, which is beneficial to further improve the stability of the rotating shaft 7 during rotation and prevent the rotating shaft 7 from loosening. Clamping columns 10 are symmetrically arranged and fixedly welded around the inner side of the cabinet door 2, and clamping holes adapted to the structure of the clamping columns 10 are provided at both ends of the fixing strip plate 3. The fixing strip plate 3 of this structure can sleeve the clamping holes at both ends on the outside of the clamping columns 10 to realize the function of quickly disassembling and assembling the sealing member 4 driven by the fixing strip plate 3, making it more convenient to use.

[0018] Working principle: When using this dust-proof and anti-interference power cabinet, first close the cabinet door 2 at the front end of the cabinet body 1, and then rotate the dial block at one end of the rotating shaft 7 located outside the cabinet door 2 respectively. When the rotating shaft 7 rotates, the dial block at the outer end will slide on the arc-shaped block 11 synchronously. When the rotating shaft 7 rotates to an appropriate angle, the positioning block 8 will be pressed against the middle of the sealing member 4. When the sealing member 4 is stressed, it will slide on the fixing strip plate 3 through the movable column 5 for expansion and contraction, and the tension spring 6 will also be stretched outside the end of the movable column 5 connected to the sealing member 4 until the sealing member 4 embeds the high-density rubber sealing strip 41 into the strip-shaped socket on the inner wall of the edge of the cabinet body 1, so as to effectively block the intrusion of dust, and the electromagnetic sealing gasket 42 will also be placed at the surrounding joints between the cabinet door 2 and the cabinet body 1 to isolate external electromagnetic interference. When it is necessary to open the cabinet door 2, rotate the rotating shaft 7 in the reverse direction. When the rotating shaft 7 drives the positioning block 8 to cancel the limit pressure on the sealing member 4, the sealing member 4 can quickly contract under the action of the tension spring 6 to smoothly open the cabinet door 2. At the same time, the fixing strip plate 3 can disconnect the clamping holes at both ends from the outside of the clamping columns 10 to drive the sealing member 4 to be quickly disassembled and assembled, thus completing a series of operations.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dustproof and anti-interference power cabinet, comprising a cabinet body (1), a cabinet door (2) being hingedly connected to the cabinet body (1), characterized in that: The inner sides of the cabinet door (2) are all provided with fixed strip plates (3), the outer sides of the fixed strip plates (3) are provided with sealing members (4), both sides of the sealing members (4) are provided with movable columns (5) movably inserted into the fixed strip plates (3), one end of the movable column (5) connected to the sealing member (4) is sleeved with a tension spring (6), and a rotating shaft (7) penetrating the cabinet door (2) is provided in the middle between the fixed strip plates (3) and the sealing member (4), and a positioning block (8) is fixed to one end of the rotating shaft (7) located on the inner side of the cabinet door (2).

2. The dust-proof and anti-interference power cabinet according to claim 1, characterized in that: A high-density rubber sealing strip (41) is bonded and fixed to one side of the outer side of the sealing member (4), and an electromagnetic sealing gasket (42) is bonded and fixed to one side of the inner side of the sealing member (4).

3. The dust-proof and interference-proof power cabinet according to claim 1, characterized in that: A damping ring (9) is provided at the connection between the cabinet door (2) and the rotating shaft (7), and the rotating shaft (7) is movably inserted into the damping ring (9).

4. The dust-proof and interference-proof power cabinet according to claim 1, characterized in that: Arc blocks (11) are arranged on all four sides of the outer wall of the cabinet door (2), and a shift block is fixed to one end of the rotating shaft (7) located outside the cabinet door (2), and the shift block at the outer end of the rotating shaft (7) is slidably connected to the arc block (11).

5. The dust-proof and interference-proof power cabinet according to claim 1, characterized in that: The inner walls around the edge of the cabinet body (1) are all provided with strip-shaped inlays that match the structure of the high-density rubber sealing strip (41).

6. The dust-proof and interference-proof power cabinet according to claim 1, characterized in that: Clamping columns (10) are symmetrically arranged around the inner side of the cabinet door (2), and clamping holes matching the structure of the clamping columns (10) are arranged at both ends of the fixing strip plate (3).

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