A waterproof and moisture-proof structure of a power distribution cabinet

By designing a moisture-proof mechanism at the cable outlet of the distribution cabinet, and utilizing the combination of sealing blocks and clamps, the problem of moisture and rainwater entering due to the opening of the cable outlet is solved, achieving the moisture-proof and waterproof effect of the distribution cabinet and simplifying the cable installation process.

CN224318941UActive Publication Date: 2026-06-02SUZHOU CHANGSHENG ELECTRIC POWER INSTALLATION ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU CHANGSHENG ELECTRIC POWER INSTALLATION ENG CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-02

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Abstract

This utility model discloses a waterproof and moisture-proof structure for a power distribution cabinet. The moisture-proof mechanism includes a mounting plate with mounting holes on its surface. A plug is fixedly mounted in the middle of one side of the mounting plate, and a through-slot is formed in the middle of the plug. The through-slot is aligned with the plug in the length direction. Mounting grooves are formed on the inner wall of the mounting plate above and below the through-slots. A filler block is bonded to the inner wall of the mounting groove. A lifting groove is also formed in the middle of the inner wall of the mounting plate. The lower end of the lifting groove is connected to the through-slot, and the upper end of the lifting groove extends to the top surface of the plug. A threaded hole is formed in the middle of the inner wall of the plug at the end away from the mounting plate. The threaded hole is on the same straight line as the through-slot. The cable channel is not a straight line extending horizontally, so rainwater from the external environment cannot directly enter the power distribution cabinet through the cable channel, thus improving the moisture-proof and waterproof performance of the power distribution cabinet.
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Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a waterproof and moisture-proof structure for a power distribution cabinet. Background Technology

[0002] Distribution cabinets are key equipment in power systems. They centrally house electrical components such as switches, protection devices, and measuring instruments. They are used to receive, distribute, and control electrical energy, and can protect circuits from overload and short circuits, ensuring safe and stable power supply. They are widely used in industrial, commercial, and civil buildings.

[0003] In order to facilitate the connection of cables to the facilities inside the cabinet, common power distribution cabinets in the prior art usually have multiple cable ports on the side or back. When the cable ports are open, moisture or water vapor can enter the power distribution cabinet, which may affect the normal operation of electrical equipment. In addition, when threading thin cables through the cable ports, the gaps around the cable ports and the cables are relatively large. In rainy weather, external rainwater can easily enter the cabinet directly through the gaps, affecting the performance of electrical equipment. To address these issues, a waterproof and moisture-proof structure for power distribution cabinets is proposed. Utility Model Content

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A waterproof and moisture-proof structure for a power distribution cabinet includes a power distribution cabinet, wherein a moisture-proof mechanism is provided on the side of the power distribution cabinet;

[0006] The moisture-proof mechanism includes a mounting plate with mounting holes on its surface. A plug is fixedly mounted in the middle of one side of the mounting plate, and a through groove is provided in the middle of the plug. The through groove is aligned with the plug in the length direction.

[0007] The mounting plate has mounting grooves on its inner wall, both above and below the through groove, and the inner wall of the mounting groove is bonded with a filler block.

[0008] The mounting plate has a lifting groove in the middle of its inner wall. The lower end of the lifting groove is connected to the through groove, and the upper end of the lifting groove extends to the top surface of the insert block.

[0009] The insert has a threaded hole in the middle of the inner wall of the insert block at the end away from the mounting plate, and the threaded hole and the through groove are on the same straight line.

[0010] As a further embodiment of this utility model: the moisture-proof mechanism further includes a threaded rod, one end of which is fixedly connected to a knob, and the other end of which is rotatably connected to a sealing block, the outer side of which is wrapped with a fixed rubber sleeve.

[0011] As a further embodiment of this utility model: the outer wall of the threaded rod is threadedly connected to the inner side of the threaded hole, and the outer wall of the sealing block is slidably connected along the inner side of the through groove.

[0012] As a further embodiment of this utility model: the moisture-proof mechanism also includes a lifting block, the bottom surface of which has an opening, and a hollow rod is fixedly and continuously connected to the center of the top surface of the lifting block.

[0013] As a further embodiment of this utility model: the outer wall of the lifting block is slidably connected to the inner side of the lifting groove, the top end of the hollow rod extends to the top of the insert block, the width of the opening gradually decreases in the direction away from the mounting plate, and the interior of the lifting block is connected to both the threaded rod and the sealing block.

[0014] As a further embodiment of this utility model: a telescopic rod is slidably connected through the inner wall of the hollow rod, the telescopic rod is T-shaped in general, a clamping plate is fixedly connected to the bottom end of the telescopic rod, and the side edge of the clamping plate is slidably connected to the inner side of the lifting block.

[0015] As a further embodiment of this utility model: the distribution cabinet includes a cabinet wall, the cabinet wall is connected through the plug block, the outer surface of the cabinet wall abuts against the mounting plate, and the surface of the cabinet wall is threaded with a number of bolts, each of the bolts being connected through the mounting hole.

[0016] The beneficial effects of this utility model are:

[0017] (1) The present invention is equipped with a moisture-proof mechanism to fill the cable openings on the surface of the distribution cabinet. When the cable is installed, the connector needs to be inserted into the horizontally oriented through groove and then bent upwards so that the cable end can be introduced into the distribution cabinet. Since the channel for accommodating the cable is not extended in a straight line along the horizontal direction, rainwater in the external environment cannot directly enter the distribution cabinet through the above-mentioned cable channel, thereby improving the moisture-proof and waterproof performance of the distribution cabinet.

[0018] (2) The moisture-proof mechanism is equipped with a lifting block. The cable end extends into the lifting block along the through groove. The clamping plate inside the lifting block can be controlled to fall and clamp the cable end. Then the lifting block is moved to drive the cable end to move up, which makes it convenient to introduce the cable into the distribution cabinet and facilitates the installation of the cable and the electrical equipment in the cabinet.

[0019] (3) The moisture-proof mechanism is equipped with a sealing block in the cable insertion groove. The side of the sealing block is wrapped with a rubber layer. When the cable port is not needed, the moisture-proof mechanism is installed in the cable port, and the sealing block can seal the cable insertion groove, thereby preventing moisture from the external environment from entering. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a cross-sectional structural diagram of the moisture-proof mechanism of this utility model;

[0022] Figure 2 This is a cross-sectional view of the insert block in this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the threaded rod in this utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the lifting block in this utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the clamping plate in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the moisture-proof mechanism after it is installed with the cabinet wall in this utility model.

[0027] In the diagram: 1. Distribution cabinet; 101. Cabinet wall; 102. Bolt; 2. Moisture-proof mechanism; 201. Mounting plate; 202. Mounting hole; 203. Insert block; 204. Through slot; 205. Mounting slot; 206. Filler block; 207. Lifting slot; 208. Threaded rod; 209. Knob; 210. Sealing block; 211. Lifting block; 212. Through port; 213. Hollow rod; 214. Telescopic rod; 215. Clamping plate; 216. Threaded hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-6As shown, a waterproof and moisture-proof structure for a power distribution cabinet includes a power distribution cabinet 1, with a moisture-proof mechanism 2 provided on the side of the power distribution cabinet 1. The moisture-proof mechanism 2 includes a mounting plate 201, with mounting holes 202 on the surface of the mounting plate 201. A plug 203 is fixedly mounted on the center of one side of the mounting plate 201, and a through groove 204 is provided in the center of the plug 203. The through groove 204 is aligned with the plug 203 in the length direction. The inner wall of the mounting plate 201 is located above and below the through groove 204. The mounting plate 201 has an installation groove 205, and a filler block 206 is bonded to the inner wall of the installation groove 205. A lifting groove 207 is also provided in the middle of the inner wall of the mounting plate 201. The lower end of the lifting groove 207 is connected to the through groove 204, and the upper end of the lifting groove 207 extends to the top surface of the insert block 203. A threaded hole 216 is provided in the middle of the inner wall of the insert block 203 at the end furthest from the mounting plate 201. The threaded hole 216 and the through groove 204 are on the same straight line. Figures 1-2 As shown, depending on the climate conditions where the distribution cabinet 1 is installed, a filling block 206 can be installed in the installation groove 205. The filling block 206 can be a moisture-absorbing material such as activated carbon, thereby reducing the moisture in the penetration groove 204.

[0030] The moisture-proof mechanism 2 also includes a threaded rod 208, one end of which is fixedly connected to a knob 209, and the other end of which is rotatably connected to a sealing block 210. The outer side of the sealing block 210 is covered with a fixing rubber sleeve, such as... Figure 1 As shown, the rubber sleeve is deformed by the pressure of the through groove 204, thereby sealing the connection gap around the sealing block 210;

[0031] The outer wall of the threaded rod 208 is threaded to the inner side of the threaded hole 216, and the outer wall of the sealing block 210 is slidably connected along the inner side of the through groove 204. Figure 2 As shown, a groove for accommodating the sealing block 210 is provided at one end of the insert 203 near the threaded hole 216. When the sealing block 210 moves into the groove, the blockage of the through groove 204 can be removed.

[0032] The moisture-proof mechanism 2 also includes a lifting block 211. The bottom surface of the lifting block 211 has an opening 212. A hollow rod 213 is fixedly and continuously connected to the center of the top surface of the lifting block 211. The outer wall of the lifting block 211 is slidably connected to the inner side of the lifting groove 207. The top end of the hollow rod 213 extends above the insert block 203. The width of the opening 212 gradually decreases in the direction away from the mounting plate 201. The interior of the lifting block 211 is connected to both the threaded rod 208 and the sealing block 210. Figure 4 As shown, the cable passes through the moisture-proof mechanism 2 and enters the power distribution cabinet 1 through the port 212;

[0033] A telescopic rod 214 is slidably connected through the inner wall of the hollow rod 213. The telescopic rod 214 is T-shaped, and a clamping plate 215 is fixedly connected to the bottom end of the telescopic rod 214. The side of the clamping plate 215 is slidably connected to the inner side of the lifting block 211. Figure 1 As shown, the telescopic rod 214 drives the clamping plate 215 to rise and fall, and clamps the cable connector.

[0034] The distribution cabinet 1 includes a cabinet wall 101, which is connected to the plug block 203. The outer surface of the cabinet wall 101 abuts against the mounting plate 201. Several bolts 102 are threadedly connected to the surface of the cabinet wall 101, and each bolt 102 is connected to the mounting hole 202.

[0035] The working principle of this utility model:

[0036] When using the device, insert the plug 203 into the cable port on the surface of the cabinet wall 101, thread the bolt 102 to the cabinet wall 101 and fix the mounting plate 201. When the cable needs to be connected to the electrical equipment inside the distribution cabinet 1, first turn the knob 209 inside the cabinet and lift the telescopic rod 214. The threaded rod 208 rotates and drives the sealing block 210 to remove the blockage of the through groove 204. Then insert the cable end into the lifting block 211 along the through groove 204, lower the telescopic rod 214, and the clamp 215 cooperates with the bottom of the inner wall of the lifting block 211 to clamp the cable joint. Then lift the lifting block 211 again, which can drive the cable joint to move along the lifting groove 207. Then the cable joint separates from the inside of the plug 203 and enters the inside of the distribution cabinet 1. The cable part can also move freely inside the distribution cabinet 1 through the through groove 204, the lifting groove 207 and the through port 212.

[0037] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A waterproof and moisture-proof structure for a power distribution cabinet, comprising a power distribution cabinet (1), wherein a moisture-proof mechanism (2) is provided on the side of the power distribution cabinet (1). characterized in that The moisture-proof mechanism (2) includes a mounting plate (201), the surface of which is provided with mounting holes (202), and a plug (203) is fixedly installed in the middle of one side of the mounting plate (201). A through groove (204) is provided in the middle of the plug (203), and the through groove (204) is consistent with the plug (203) in the length direction. The mounting plate (201) has mounting grooves (205) on its inner wall, both above and below the through groove (204), and the inner wall of the mounting groove (205) is bonded with a filler block (206). The mounting plate (201) has a lifting groove (207) in the middle of its inner wall. The lower end of the lifting groove (207) is connected to the through groove (204), and the upper end of the lifting groove (207) extends to the top surface of the insert block (203). The insert (203) has a threaded hole (216) on its inner wall at the middle of one end away from the mounting plate (201), and the threaded hole (216) and the through groove (204) are on the same straight line.

2. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 1, characterized in that, The moisture-proof mechanism (2) also includes a threaded rod (208), one end of which is fixedly connected to a knob (209), and the other end of which is rotatably connected to a sealing block (210), with a fixed rubber sleeve wrapped around the outside of the sealing block (210).

3. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 2, characterized in that, The outer wall of the threaded rod (208) is threaded to the inner side of the threaded hole (216), and the outer wall of the sealing block (210) is slidably connected along the inner side of the through groove (204).

4. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 3, characterized in that, The moisture-proof mechanism (2) also includes a lifting block (211), the bottom surface of which has an opening (212), and a hollow rod (213) is fixed and connected through the middle of the top surface of the lifting block (211).

5. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 4, characterized in that, The outer wall of the lifting block (211) is slidably connected to the inner side of the lifting groove (207). The top end of the hollow rod (213) extends above the insert block (203). The width of the opening (212) gradually decreases in the direction away from the mounting plate (201). The interior of the lifting block (211) is connected to both the threaded rod (208) and the sealing block (210).

6. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 5, characterized in that, The inner wall of the hollow rod (213) is slidably connected to a telescopic rod (214). The telescopic rod (214) is T-shaped. The bottom end of the telescopic rod (214) is fixedly connected to a clamping plate (215). The side of the clamping plate (215) is slidably connected to the inner side of the lifting block (211).

7. The waterproof and moisture-proof structure of a power distribution cabinet according to claim 1, characterized in that, The distribution cabinet (1) includes a cabinet wall (101), which is connected to the plug block (203) through. The outer surface of the cabinet wall (101) abuts against the mounting plate (201). The surface of the cabinet wall (101) is threaded with a number of bolts (102), and each bolt (102) is connected to the mounting hole (202) through.