High-sealing-performance line concentration mechanism of electrical cabinet

Abstract

The utility model relates to the technical field of electrical cabinet assemblies, in particular to a high-sealing-performance line concentration mechanism of an electrical cabinet. The wire concentration plate is fixed with the side wall of the electrical cabinet in a sealing manner, the wire harness hole penetrates through the plate surface of the wire concentration plate, an inner cavity of the wire harness hole is provided with an air bag ring, the outer periphery of the air bag ring is fixed with the inner wall of the wire harness hole in a sealing manner, and a wire harness penetrates through the inner periphery of the air bag ring and is in clamping sealing fit with the inner periphery of the air bag ring after being pressurized and expanded; a pressure regulating box is further arranged on the line concentration plate, an inner cavity of the pressure regulating box is divided into a pressure regulating cavity and a pressure relief cavity through a sliding piston block, a pressure regulating elastic piece for driving the piston block to slide towards the pressure regulating cavity is arranged in the piston block, and the pressure regulating cavity is communicated with an inner cavity of the air bag ring. According to the utility model, not only is the wire harness convenient to pass through, but also the wire harness is stably clamped, and the stable sealing of the wire harness penetrating part can be realized under different temperature changes.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinet components, in particular to a high-sealing wire collection mechanism for an electrical cabinet. Background Art

[0002] The electrical cabinet in the lithium battery plant is the core component of the entire factory's power system. It is responsible for distributing and managing the electricity transmitted from the power grid, ensuring stable and safe power supply to each production link.

[0003] When wiring harnesses are laid out in electrical cabinets, a large number of wires are often inserted through the cabinet's sidewalls. To address safety hazards associated with the wiring harnesses and the cabinet's through-holes, sealing mechanisms are often installed between the wiring harnesses and the through-holes. For example, Chinese Patent Publication No. CN209658634U, titled "An Electrical Cabinet Hole Sealing Device," describes a cylindrical seal threadedly connected to the through-hole. Within the seal's inner cavity, a retaining plate is elastically positioned to clamp the wiring harness, and rubber ties are positioned at both ends of the seal's inner cavity to achieve a seal with the wiring harness. While this type of seal provides stable clamping and a good seal, in practice, the rubber ties are typically slightly smaller in their normal inner diameter than their normal outer diameter to ensure a good seal. This elastic, tight contact between the rubber ties and the wiring harness creates a stable seal. Consequently, both the retaining plate and the rubber ties exert radial pressure on the wiring harness, making it difficult to pass the wiring harness through the seal's inner cavity. However, if the inner diameter of the rubber tie ring is set to match the outer diameter of the wiring harness in order to facilitate the wiring harness to pass through the rubber tie ring, the sealing performance will be reduced. In particular, when the rubber tie ring and the wiring harness expand and contract due to temperature changes, the sealing effect between the rubber tie ring and the wiring harness will be even worse. Therefore, a solution is urgently needed. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a high-sealing wire collection mechanism for an electrical cabinet, which not only facilitates the passage of the wire harness, but also stably clamps the wire harness, and can also achieve stable sealing at the wire harness penetration point under different temperature changes.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A highly sealed wire collection mechanism for an electrical cabinet comprises a wire collection plate sealed and fixed to the side wall of the electrical cabinet and a wire harness hole penetrating the surface of the wire collection plate; the inner cavity of the wire harness hole is provided with an airbag ring; the outer periphery of the airbag ring is sealed and fixed to the inner wall of the wire harness hole; the wire harness passes through the inner periphery of the airbag ring and forms a clamping seal with the inner periphery of the pressurized and expanded airbag ring; a pressure regulating box is also provided on the wire collection plate; the inner cavity of the pressure regulating box is divided into a pressure regulating chamber and a pressure relief chamber by a sliding piston block; a pressure regulating elastic member is provided in the piston block for driving the piston block to slide toward the pressure regulating chamber; the pressure regulating chamber is connected to the inner cavity of the airbag ring.

[0007] As a further solution of the present invention: the inner cavity of the pressure regulating box is a cylindrical cavity structure, the piston block slides axially along the cylindrical cavity, the pressure regulating box is provided with a pressure relief hole connected to the pressure relief cavity, and the pressure regulating elastic member is an extrusion spring coaxially distributed in the pressure relief cavity.

[0008] As a further solution of the present invention: a one-way air intake valve connected to the pressure regulating chamber is installed on the pressure regulating box, and a valve cap is screwed on the one-way air intake valve.

[0009] As a further solution of the present invention: the wiring harness holes are arranged in a dot matrix on the wiring board, and an air bag ring is arranged in each wiring harness hole, and the pressure regulating boxes are arranged in a number corresponding to each horizontal row of wiring harness holes, and the pressure regulating cavity of the pressure regulating box is connected to all the air bag rings on the corresponding horizontal row through the air pipe.

[0010] As a further solution of the present invention: an extension tube is coaxially fixed to the outer wall of the cable collection plate at the outer periphery of the harness hole, and a sealing cover is coaxially screwed on the outer end of the extension tube.

[0011] As a further solution of the present invention: a sealing gasket is fixed to the outer edge of the inner side wall of the line collection plate, and the line collection plate is sealed and fixed to the side wall of the electrical cabinet by locking bolts.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The airbag ring is not inflated and compressed under normal conditions. After the wiring harness passes through the inner periphery of the airbag ring, it is inflated and pressurized to form a clamping seal with the wiring harness. This not only makes it easier for the wiring harness to pass through the electrical cabinet, but also achieves stable clamping of the wiring harness and good sealing at the penetration point.

[0014] 2. A pressure regulating box connected to the inner cavity of the airbag ring is provided. When the temperature of the working environment of the electrical cabinet changes, causing the airbag ring and the wiring harness to expand and contract due to thermal expansion and contraction, especially when the thermal expansion and contraction effect causes the pressure in the inner cavity of the airbag ring to decrease, the pressure regulating elastic member in the pressure regulating box drives the piston block to slide toward the pressure regulating cavity, thereby compensating for the reduced pressure inside the airbag ring, further ensuring the stable clamping and sealing of the wiring harness by the airbag ring.

[0015] 3. The inner cavity of the pressure regulating box is a cylindrical cavity structure. The piston block slides axially along the cylindrical cavity. The friction force of the cylindrical cavity contact surface is uniform, and the sliding stability of the piston block is high. When the extrusion spring is used as the pressure regulating elastic member, the extrusion spring is coaxially distributed in the pressure relief cavity to ensure the stability of the extrusion spring installation.

[0016] 4. The pressure regulating box is equipped with a one-way air inlet valve connected to the pressure regulating chamber. A valve cap is threaded onto the valve, ensuring a stable seal between the airbag ring and the inflation port in the pressure regulating chamber. This one-way air inlet valve is similar to the valve structure used in bicycle tires. It allows for one-way air intake and can also release air by pushing the valve core. Therefore, when the wiring harness needs to be removed, air can be released through the one-way air inlet valve, making it easy to remove the wiring harness.

[0017] 5. The wiring harness holes are arranged in a dot matrix on the wiring board, and an airbag ring is arranged in each wiring harness hole to facilitate the regular arrangement of the wiring harness on the electrical cabinet.

[0018] 6. An extension tube is coaxially fixed to the outer wall of the wiring harness hole, and a sealing cover is coaxially screwed on the outer end of the extension tube. It can seal the unused wiring harness holes when the electrical cabinet is not in use or some of the wiring harness holes are not penetrated by the wiring harness, making the wiring harness plate highly versatile.

[0019] 7. The cable hub is assembled separately from the electrical cabinet, facilitating the production and processing of the cable hub and the electrical cabinet. Furthermore, a sealing gasket is fixed to the outer edge of the inner side wall of the cable hub, and the cable hub is sealed and fixed to the side wall of the electrical cabinet via locking bolts, ensuring a tight seal between the cable hub and the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the inner side wall of the utility model.

[0021] Figure 2 This is a structural diagram of the voltage regulating box in the utility model.

[0022] Figure 3 This is a schematic structural diagram of the outer side wall of the present invention.

[0023] Figure 4 This is a schematic diagram of the connection structure between the airbag ring and the pressure regulating box in the utility model.

[0024] In the figure: 10, wiring board; 11, wiring harness hole; 12, sealing gasket; 13, locking bolt; 14, extension tube; 15, sealing cover; 20, air bag ring; 30, pressure regulating box; 31, pressure relief hole; 32, one-way air intake valve; 33, valve cap; 34, air pipe; 35, piston block; 36, extrusion spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] For ease of understanding, the specific structure and working mode of the present invention are further described below with reference to the accompanying drawings:

[0027] The specific structure of the utility model refers to Figure 1-4 As shown, its main structure includes a wiring harness plate 10 sealed and fixed to the side wall of the electrical cabinet, and a wiring harness hole 11 that penetrates the board surface of the wiring harness plate 10. The inner cavity of the wiring harness hole 11 is provided with an airbag ring 20, the outer periphery of which is sealed and fixed to the inner wall of the wiring harness hole 11. Under normal conditions, the airbag ring 20 is in a non-inflated and compressed state to facilitate the wiring harness passing through the inner periphery of the airbag ring 20. After the wiring harness passes through the airbag ring 20, the inner cavity of the airbag ring 20 is inflated and pressurized, and the pressurized inner periphery of the airbag ring 20 is squeezed toward the wiring harness to form a clamping seal with the wiring harness. The method of using the airbag ring 20 to be non-inflated and compressed under normal conditions and then inflated and pressurized to form a clamping seal with the wiring harness after the wiring harness passes through the inner periphery of the airbag ring 20 not only facilitates the wiring harness passing through the electrical cabinet, but also achieves stable clamping of the wiring harness and a good seal at the penetration point.

[0028] Further, such as Figure 1 and Figure 2 As shown, the wiring hub 10 is also provided with a pressure-regulating box 30. The inner cavity of the pressure-regulating box 30 is divided into a pressure-regulating chamber and a pressure-relieving chamber by a sliding piston block 35. A pressure-regulating elastic member is located within the piston block 35, driving the piston block 35 toward the pressure-regulating chamber. The pressure-regulating chamber is connected to the inner cavity of the airbag ring 20. When the inner cavity of the airbag ring 20 is pressurized and inflated, the pressure-regulating chamber connected to it is also pressurized and inflated, pushing the piston block 35 toward the pressure-relieving chamber against the elastic force of the pressure-regulating elastic member. Therefore, when the airbag ring 20 and the wiring harness undergo thermal expansion and contraction due to changes in the operating temperature of the electrical cabinet, especially when the pressure in the airbag ring 20 decreases due to this thermal expansion and contraction, the pressure-regulating elastic member drives the piston block 35 toward the pressure-regulating chamber, compensating for the reduced pressure within the airbag ring 20 and further ensuring the stable clamping and sealing of the wiring harness by the airbag ring 20.

[0029] Specifically, such as Figure 2As shown, the inner cavity of the pressure regulating box 30 is a cylindrical cavity, along which the piston block 35 slides axially. The friction force on the contact surface of the cylindrical cavity is uniform, and the sliding stability of the piston block 35 is high. When a compression spring 36 is used as the pressure regulating elastic member, the compression spring 36 is coaxially distributed within the pressure relief cavity, which ensures the stability of the installation of the compression spring 36. In addition, in actual implementation, to facilitate the release of pressure in the pressure relief cavity, a pressure relief hole 31 communicating with the pressure relief cavity is provided in the pressure regulating box 30. Of course, to ensure the sealing of the inner cavity of the pressure regulating box 30, the end of the pressure regulating box 30 adjacent to the pressure relief cavity can also be provided with an elastically retractable telescopic tube or elastic sealing cloth.

[0030] In addition, if Figure 2 As shown, the pressure regulating box 30 is equipped with a one-way air inlet valve 32 that communicates with the pressure regulating chamber. A valve cap 33 is threadedly attached to the one-way air inlet valve 32, ensuring a stable seal between the airbag ring 20 and the inflation port within the pressure regulating chamber. This one-way air inlet valve 32 is a conventional valve structure, such as that found on bicycle tires. It allows for one-way air intake and also allows for deflation by pushing a valve core. Therefore, when the wiring harness needs to be removed, air can be released through the one-way air inlet valve 32, enabling convenient removal of the wiring harness.

[0031] Since there are often many wire harnesses arranged on the electrical cabinet, in order to facilitate the regular arrangement of the wire harnesses on the electrical cabinet, such as Figure 1 As shown, a plurality of harness holes 11 are arranged in a dot matrix on the cable collection plate 10 , and an airbag ring 20 is arranged in each harness hole 11 .

[0032] In addition, a number of pressure regulating boxes 30 are provided corresponding one-to-one to each horizontal row of wiring harness holes 11, and the pressure regulating cavity of the pressure regulating box 30 is connected to all the airbag rings 20 on the corresponding horizontal row through the air pipe 34, so that there is no need to inflate the inner cavity of each airbag ring 20 separately, which effectively improves the efficiency of wiring harness clamping and sealing.

[0033] It is worth noting that in actual operation of the above embodiment, when a wire harness needs to be passed through or removed from any of the wire harness holes 11 in each horizontal row, the one-way air inlet valve 32 of the pressure regulating box 30 corresponding to the horizontal row needs to be deflated and then inflated.

[0034] In addition, if Figure 3 As shown, the outer wall of the wiring harness plate 10 is coaxially fixed with an extension tube 14 on the periphery of the wiring harness hole 11, and the outer end of the extension tube 14 is coaxially threaded with a sealing cover 15, which can seal the unused wiring harness holes 11 when the electrical cabinet is not in use or some of the wiring harness holes 11 are not penetrated by the wiring harness, so that the wiring harness plate 10 has high versatility.

[0035] On the basis of the above, the wiring board 10 adopts a separate assembly structure with the electrical cabinet, and a through hole for all the wire harnesses on the wiring board 10 to pass through is provided on the electrical cabinet, which is beneficial to the production and processing of the wiring board 10 and the electrical cabinet. Figure 1 As shown, a sealing gasket 12 is fixed to the outer edge of the inner wall of the collection plate 10, and the collection plate 10 is sealed and fixed to the side wall of the electrical cabinet by locking bolts 13, ensuring the sealing of the assembly between the collection plate 10 and the electrical cabinet.

[0036] Of course, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but also encompasses the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that fall within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0038] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. A high-sealing wire collection mechanism for an electrical cabinet, characterized in that: The utility model comprises a collection plate (10) sealed and fixed to the side wall of the electrical cabinet and a harness hole (11) penetrating the surface of the collection plate (10); the inner cavity of the harness hole (11) is provided with an airbag ring (20); the outer periphery of the airbag ring (20) is sealed and fixed to the inner wall of the harness hole (11); the harness passes through the inner periphery of the airbag ring (20) and forms a clamping seal with the inner periphery of the pressurized and expanded airbag ring (20); a pressure regulating box (30) is also provided on the collection plate (10); the inner cavity of the pressure regulating box (30) is divided into a pressure regulating chamber and a pressure relief chamber by a sliding piston block (35); a pressure regulating elastic member is provided in the piston block (35) for driving the piston block (35) to slide toward the pressure regulating chamber; the pressure regulating chamber is communicated with the inner cavity of the airbag ring (20).

2. The high-sealing wire collection mechanism of an electrical cabinet according to claim 1, characterized in that: The inner cavity of the pressure regulating box (30) is in the form of a cylindrical cavity, and the piston block (35) slides axially along the cylindrical cavity. A pressure relief hole (31) communicating with the pressure relief cavity is provided on the pressure regulating box (30), and the pressure regulating elastic member is an extrusion spring (36) coaxially distributed in the pressure relief cavity.

3. The high-sealing wire collection mechanism of an electrical cabinet according to claim 1, characterized in that: A one-way air inlet valve (32) communicating with the pressure regulating chamber is installed on the pressure regulating box (30), and a valve cap (33) is screwed on the one-way air inlet valve (32).

4. A high-sealing wire collection mechanism for an electrical cabinet according to any one of claims 1 to 3, characterized in that: The harness holes (11) are arranged in a dot matrix on the harness plate (10), and an airbag ring (20) is arranged in each harness hole (11). The pressure regulating boxes (30) are arranged in a one-to-one correspondence with each harness hole (11) in a horizontal row, and the pressure regulating chamber of the pressure regulating box (30) is connected to all the airbag rings (20) in the corresponding horizontal row through the air pipe (34).

5. The high-sealing wire collection mechanism for an electrical cabinet according to claim 4, characterized in that: An extension tube (14) is coaxially fixed to the outer wall of the wire collection plate (10) at the outer periphery of the wire harness hole (11), and a sealing cover (15) is coaxially screwed to the outer end of the extension tube (14).

6. A high-sealing wire collection mechanism for an electrical cabinet according to any one of claims 1 to 3, characterized in that: A sealing gasket (12) is fixed at the outer edge of the inner side wall of the line collection plate (10), and the line collection plate (10) is sealed and fixed to the side wall of the electrical cabinet via locking bolts (13).

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