Low-voltage switch cabinet

Abstract

The utility model relates to a low-voltage switch cabinet, and relates to the technical field of electrical equipment, the low-voltage switch cabinet comprises a plurality of cabinet bodies, cabinet doors are hinged to the cabinet bodies, and lock heads and handles are arranged on the cabinet doors; one of the two adjacent cabinet bodies is provided with a joint structure, and the other cabinet body is provided with an interface structure which is matched with the joint structure and is used for inserting the joint structure; according to the low-voltage switch cabinet, due to the cooperative arrangement of the joint structure and the interface structure, when two low-voltage switch cabinets need to be connected together for application, the cable in one cabinet body is connected with the joint structure, and the cable in the other cabinet body is connected with the interface structure; when the joint structure on one cabinet body is inserted into the interface structure on the other cabinet body, connection of adjacent cabinet bodies can be realized without penetrating general cables through the cabinet bodies, and the possibility that adjacent low-voltage switch cabinets cannot be connected due to small space in the cabinet bodies is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a low-voltage switch cabinet. Background Art

[0002] Low-voltage switchgear is a device used for power conversion and distribution, and is widely used in power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and other industries. Among them, the standardized low-voltage switchgear (SLVA cabinet) is a low-voltage complete set of switchgear designed according to standardized requirements, suitable for 0.4kV voltage system.

[0003] In the related art, a low-voltage switch cabinet usually includes a cabinet body and a cabinet door, wherein one or more low-voltage switch devices and related control, measurement, signal, protection, regulation and other equipment are installed inside the cabinet body. The manufacturer is responsible for completing all internal electrical and mechanical connections, and the cabinet is a combination of structural components that are completely assembled together.

[0004] In the application of low-voltage switchgear, it is sometimes necessary to connect the cables in adjacent low-voltage switchgear for coordinated application, but there may be limitations on the connection between low-voltage switchgear. For example, the internal space of low-voltage switchgear is usually relatively small, which may hinder the cables from passing through adjacent cabinets. At this time, the connection between adjacent low-voltage switchgear cannot be achieved, and there is room for improvement. Utility Model Content

[0005] The purpose of the present application is to provide a low-voltage switch cabinet to solve the problem in the above-mentioned related technology that the internal space of the low-voltage switch cabinet is usually relatively narrow, which may hinder the cables from passing through adjacent cabinets. At this time, the connection between adjacent low-voltage switch cabinets cannot be achieved, and there is room for improvement.

[0006] The present application provides a low-voltage switch cabinet adopting the following technical solution:

[0007] A low-voltage switch cabinet comprises a plurality of cabinet bodies, wherein cabinet doors are hingedly connected to the cabinet bodies, and the cabinet doors are provided with locks and handles. A joint structure is provided on one of two adjacent cabinet bodies, and an interface structure adapted to the joint structure and for inserting the joint structure is provided on the other cabinet body.

[0008] By adopting the above technical solution, when two low-voltage switch cabinets need to be connected together for use, due to the coordinated setting of the joint structure and the interface structure, the cables inside one cabinet are connected to the joint structure, and the cables inside the other cabinet are connected to the interface structure. When the joint structure on one cabinet is inserted into the interface structure on the other cabinet, there is no need to pass the usual cables through the cabinets to achieve the connection between adjacent cabinets, thereby reducing the possibility of adjacent low-voltage switch cabinets being unable to be connected due to the small space inside the cabinet.

[0009] Optionally, a heat dissipation port is provided at the lower portion of the outer side of the cabinet body, an air inlet is provided at the upper portion of the cabinet body, and an air intake fan is installed at the air inlet inside the cabinet body.

[0010] By adopting the above technical solution, since the electrical components in the low-voltage switch cabinet will cause the temperature inside the cabinet to rise when working, through the coordinated setting of the heat dissipation port and the air intake fan, the air intake fan is started at this time, and the external air is injected into the cabinet through the air intake port, and then the higher temperature gas in the cabinet is squeezed and discharged from the heat dissipation port, so as to adjust the temperature inside the cabinet and reduce the temperature of the electrical components inside the cabinet during operation.

[0011] Optionally, an air intake pipe is installed on the cabinet at the outer opening of the air inlet, and the air intake pipe is bent and the end opening of the air intake pipe away from the cabinet faces the ground.

[0012] By adopting the above technical solution, after the air intake pipe is installed, the outside is connected to the inside of the cabinet through the air intake pipe and the air inlet. However, since the opening direction of the air intake pipe is toward the ground, the possibility of external impurities or dust falling directly into the cabinet through the air inlet is reduced, thereby improving the dustproof performance of the low-voltage switch cabinet.

[0013] Optionally, the cabinet is provided with an air guide cover with an opening facing upward on the inner wall of the heat dissipation port.

[0014] By adopting the above technical solution, during the operation of the air intake fan, through the setting of the air guide cover, when the gas with higher temperature moves downward from the upper part of the cabinet, the air guide cover plays a role of drainage and guidance, which facilitates the gas to be discharged from the inside of the heat dissipation port, thereby improving the heat dissipation efficiency inside the cabinet.

[0015] Optionally, an insect-proof cover is installed at the opening of the air guide cover.

[0016] By adopting the above technical solution, when the low-voltage switch cabinet is used outdoors, in order to prevent flying insects or reptiles from the outside from entering the interior of the cabinet through the heat dissipation port, a dust cover is installed at the opening of the air guide cover. This arrangement reduces the possibility of insects entering the interior of the cabinet through the heat dissipation port and affecting the working performance of the low-voltage switch cabinet.

[0017] Optionally, a plurality of positioning blocks are provided on one side edge of the insect-proof cover, and a positioning groove for inserting the positioning blocks is provided on the opening edge of the air guide cover.

[0018] By adopting the above technical solution, during the installation process of the insect-proof cover, several positioning blocks on the insect-proof cover are inserted into the corresponding positioning grooves. This arrangement is more convenient than welding or gluing, and is also convenient for disassembly and cleaning of the insect-proof cover, thereby improving the disassembly and assembly efficiency of the insect-proof cover.

[0019] Optionally, an elastic clamping piece is provided on the outer side surface of the positioning block, a placement groove for the elastic clamping piece to be placed is provided on the positioning block, and a fixing groove for the elastic clamping piece to be inserted is provided on the inner wall of the positioning groove.

[0020] By adopting the above technical solution, when the positioning block is inserted into the positioning groove, the elastic extrusion piece is squeezed and inserted into the fixed groove on the inner wall of the positioning groove, thereby reducing the possibility of the positioning block falling out of the positioning groove in a natural state.

[0021] Optionally, the cabinet is provided with a waterproof cover with the opening facing downward at the outer side opening of the heat dissipation port.

[0022] By adopting the above technical solution, when the low-voltage switch cabinet is used outdoors, rainwater can flow downward along the outer side of the waterproof cover, thereby reducing the possibility of external rainwater entering the cabinet through the heat dissipation port.

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

[0024] 1. Due to the coordinated setting of the joint structure and the interface structure, when two low-voltage switch cabinets need to be connected together for application, the cables inside one cabinet are connected to the joint structure, and the cables inside the other cabinet are connected to the interface structure. When the joint structure on one cabinet is inserted into the interface structure on the other cabinet, the connection between adjacent cabinets can be achieved without passing the usual cables through the cabinets, thereby reducing the possibility of adjacent low-voltage switch cabinets being unable to be connected due to the small space inside the cabinet.

[0025] 2. By installing a dust cover at the opening of the air guide cover, when the low-voltage switch cabinet is used outdoors, in order to prevent flying insects or reptiles from the outside from entering the interior of the cabinet through the heat dissipation port, this arrangement is used to reduce the possibility of insects entering the interior of the cabinet through the heat dissipation port and affecting the working performance of the low-voltage switch cabinet; when the positioning block is inserted into the positioning groove, the elastic extrusion piece is squeezed and inserted into the fixed groove on the inner wall of the positioning groove, thereby reducing the possibility of the positioning block escaping from the positioning groove in a natural state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic diagram of the structure of the embodiment 1 of the present application when adjacent cabinets are connected;

[0028] Figure 2This is a schematic cross-sectional view of the structure of adjacent cabinets when they are connected in Embodiment 1 of the present application;

[0029] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0030] Figure 4 It is a cross-sectional structural schematic diagram of the distribution of heat dissipation ports and air intake fans in Example 2 of the present application;

[0031] Figure 5 It is a partial cross-sectional structural schematic diagram of the installation and matching of the air guide cover in Example 2 of the present application;

[0032] Figure 6 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the insect-proof cover and the waterproof cover in Example 2 of the present application;

[0033] Figure 7 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the insect-proof cover and the air guide cover in Example 2 of the present application;

[0034] Figure 8 yes Figure 7 Enlarged schematic diagram of part A.

[0035] In the figure, 1. cabinet body; 11. joint structure; 12. interface structure; 13. heat dissipation port; 14. air inlet; 15. air guide cover; 151. positioning groove; 152. fixing groove; 16. waterproof cover; 2. cabinet door; 21. lock; 22. handle; 3. air intake fan; 4. air intake pipe; 5. insect-proof cover; 51. positioning block; 511. placement groove; 52. elastic clip; 521. compression spring; 522. arc-shaped protrusion. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0037] Embodiment 1:

[0038] Reference Figure 1 and Figure 2 A low-voltage switch cabinet includes multiple cabinets 1, wherein the cabinet 1 is hinged with a cabinet door 2, and the cabinet door 2 is provided with a lock 21 and a handle 22. The interior of the cabinet 1 is used to install related electrical components. After the staff unlocks the lock 21, the cabinet door 2 can be opened by pulling the handle 22.

[0039] Reference Figure 2The back side of one of the two adjacent cabinets 1 is provided with a joint structure 11 connected to its internal cables (not shown in the figure), and the back side of the other cabinet 1 is provided with an interface structure 12 connected to its internal cables (not shown in the figure) and for the joint structure 11 to be inserted, and the joint structure 11 is adapted to the interface structure 12; when the two cabinets 1 are connected, the joint structure 11 on one cabinet 1 is inserted into the interface structure 12 on the other cabinet 1, so as to realize the electrical connection between the internal cables of the two cabinets 1.

[0040] The implementation principle of the embodiment of the present application is:

[0041] When two low-voltage switch cabinets need to be connected together for use, the joint structure 11 on the back side of one cabinet 1 is inserted into the interface structure 12 on the back side of the other cabinet 1, so as to achieve the connection between adjacent low-voltage switch cabinets.

[0042] Embodiment 2:

[0043] Reference Figure 3 and Figure 4 The difference between the embodiment of the present application and embodiment 2 is that a heat dissipation port 13 is relatively opened at the lower part of the outer side surface of the cabinet 1, and an air inlet 14 is opened at the upper part of the cabinet 1, and an air intake fan 3 is fixedly installed at the air inlet 14 inside the cabinet 1 by bolts; when the electrical components in the low-voltage switch cabinet are working, the temperature inside the cabinet 1 will increase. At this time, the air intake fan 3 is started, and the external air is injected into the cabinet 1 through the air inlet 14, and then the higher temperature gas in the cabinet 1 is squeezed and discharged from the heat dissipation port 13, so as to adjust the temperature inside the cabinet 1 and reduce the temperature of the electrical components inside the cabinet 1 during operation.

[0044] Reference Figure 4 An air intake pipe 4 is fixedly installed on the cabinet body 1 at the outer opening of the air intake port 14 by bolts. At the same time, the air intake pipe 4 is bent, and the end opening of the air intake pipe 4 away from the cabinet body 1 faces the ground, so as to prevent external impurities or dust from falling directly into the interior of the cabinet body 1 through the air intake port 14, thereby improving the dustproof performance of the switch cabinet.

[0045] Reference Figure 5The cabinet 1 is welded and fixed with an air guide cover 15 with an opening facing upward on the inner wall of the heat dissipation port 13. When the high temperature gas moves downward from the upper part of the cabinet 1, the air guide cover 15 can be used to guide the gas to be discharged from the inside of the heat dissipation port 13. The cabinet 1 is welded and fixed with a waterproof cover 16 with an opening facing downward at the opening of the outer side of the heat dissipation port 13. The opening of the air guide cover 15 is installed with an insect-proof cover 5, and a number of air-permeable through holes are evenly opened in the middle of the insect-proof cover 5. When the low-voltage switch cabinet is used outdoors, the waterproof cover 16 is provided to reduce the possibility of external rainwater entering the cabinet 1, and the insect-proof cover 5 is provided to prevent external flying insects or reptiles from entering the cabinet 1 through the heat dissipation port 13.

[0046] Reference Figure 6 and Figure 7 Positioning blocks 51 are fixed at four corners of one side edge of the insect-proof cover 5 by glue, and a positioning groove 151 for inserting the positioning block 51 is provided at the opening edge of the air guide cover 15.

[0047] Reference Figure 7 and Figure 8 An elastic clip 52 is provided on the outer side of the positioning block 51, and a placement groove 511 for the elastic clip 52 to be placed is opened on the positioning block 51, wherein the elastic clip 52 includes a compression spring 521 and an arc-shaped protrusion 522 located inside the placement groove 511, the compression spring 521 is in an extrusion state and is used to squeeze the arc-shaped protrusion 522, so that a part of the arc-shaped protrusion 522 protrudes out of the placement groove 511, the protruding part of the arc-shaped protrusion 522 is an arc surface, and the arc corresponding to the cross-section is a poor arc, and a fixing groove 152 for the elastic clip 52 to be inserted is opened on the inner wall of the positioning groove 151; when the positioning block 51 is inserted into the positioning groove 151, the compression spring 521 squeezes the arc-shaped protrusion 522 so that the protruding part is inserted into the fixing groove 152, thereby reducing the possibility of the positioning block 51 falling out of the positioning groove 151 in a natural state.

[0048] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low-voltage switch cabinet, comprising a plurality of cabinet bodies (1), wherein a cabinet door (2) is hingedly connected to the cabinet body (1), and the cabinet door (2) is provided with a lock (21) and a handle (22); It is characterized in that One of the two adjacent cabinets (1) is provided with a joint structure (11), and the other cabinet (1) is provided with an interface structure (12) adapted to the joint structure (11) and for the joint structure (11) to be inserted.

2. A low voltage switch cabinet according to claim 1, characterized in that: A heat dissipation port (13) is provided at the lower portion of the outer side surface of the cabinet (1), an air inlet (14) is provided at the upper portion of the cabinet (1), and an air inlet fan (3) is installed at the air inlet (14) inside the cabinet (1).

3. A low voltage switch cabinet according to claim 2, characterized in that: An air intake pipe (4) is installed on the cabinet (1) at the outer opening of the air intake port (14); the air intake pipe (4) is bent and the end opening of the air intake pipe (4) away from the cabinet (1) faces the ground.

4. A low voltage switch cabinet according to claim 3, characterized in that: The cabinet (1) is provided with an air guide cover (15) with an opening facing upward on the inner wall of the heat dissipation opening (13).

5. A low voltage switch cabinet according to claim 4, characterized in that: An insect-proof cover (5) is installed at the opening of the air guide cover (15).

6. A low voltage switch cabinet according to claim 5, characterized in that: A plurality of positioning blocks (51) are provided on one side edge of the insect-proof cover (5), and a positioning groove (151) for inserting the positioning blocks (51) is provided on the opening edge of the air guide cover (15).

7. A low voltage switch cabinet according to claim 6, characterized in that: An elastic clamping piece (52) is provided on the outer side surface of the positioning block (51), a placement groove (511) for the elastic clamping piece (52) to be placed is provided on the positioning block (51), and a fixing groove (152) for the elastic clamping piece (52) to be inserted is provided on the inner wall of the positioning groove (151).

8. A low voltage switch cabinet according to claim 3, characterized in that: The cabinet (1) is provided with a waterproof cover (16) with its opening facing downward at the outer side opening of the heat dissipation opening (13).

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