Electrical switch cabinet for electrical engineering

Abstract

The utility model discloses an electrical switch cabinet for electrical engineering, comprising a switch cabinet, the top of the switch cabinet is provided with an air inlet assembly, the bottom of the switch cabinet is provided with an air discharge groove above the ground, the air discharge groove is provided with a pressure assembly, and when the pressure in the switch cabinet is greater than a preset value, the pressure assembly opens the air discharge groove. The utility model provides an electrical switch cabinet for electrical engineering. The electrical switch cabinet can avoid the problem that moisture on the ground enters an inner cavity of the switch cabinet through an exhaust groove, so that electrical elements are affected with damp.

Description

Technical Field

[0001] The utility model relates to the technical field of electric switch cabinets, in particular to an electric switch cabinet for electrical engineering. Background Art

[0002] The electrical switch cabinet is a kind of electrical equipment. The electrical switch cabinet is mainly composed of electronic components such as circuit breakers, disconnectors, mutual inductors and various protective devices.

[0003] A Chinese patent publication (publication number: CN213937129U) discloses a switch cabinet for electrical engineering, which includes a cabinet, a support plate is fixedly connected to an outer wall of one side of the cabinet, and a blower is fixedly connected to the outer wall of the top of the support plate, a hollow plate is fixedly connected to the top inner wall of the cabinet, and air holes are opened at equal distances on the bottom outer wall of the hollow plate, and the blowing end of the blower is connected to the inner wall of the hollow plate through a pipeline;

[0004] Although the switch cabinet can discharge the hot air from the inner cavity of the switch cabinet out of the inner cavity of the switch cabinet through the heat dissipation frame, the limit plate and the air guide groove, since the air guide groove and the heat dissipation frame are normally open and located at the bottom of the switch cabinet, when the heat is not dissipated, the moisture on the ground will enter the inner cavity of the switch cabinet through the air guide groove and the heat dissipation frame, thereby causing the electrical components to become damp and affecting their use. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The utility model provides an electrical switch cabinet for electrical engineering, which can prevent moisture on the ground from entering the inner cavity of the switch cabinet through an exhaust groove and causing the electrical components to be damp.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the technical solution provided by the utility model is:

[0009] An electrical switch cabinet for electrical engineering includes a switch cabinet, wherein an air intake assembly is provided on the top of the switch cabinet, an exhaust groove is provided off the ground at the bottom of the switch cabinet, and a pressure assembly is provided at the exhaust groove. When the pressure inside the switch cabinet is greater than a preset value, the pressure assembly opens the exhaust groove.

[0010] Optionally, the pressure assembly includes a baffle, one side of which is rotatably connected to the switch cabinet via a torsion spring.

[0011] Optionally, the pressure assembly further comprises a partition disposed in the middle of the exhaust groove, baffles are provided on both sides of the partition, one side of the baffle abuts against the partition, and the other side is rotatably connected to the switch cabinet via a torsion spring.

[0012] Optionally, a peripheral plate is provided at the bottom of the switch cabinet surrounding the exhaust groove, and the bottom of the peripheral plate is open.

[0013] Optionally, a filter screen is detachably connected to the bottom of the peripheral plate.

[0014] Optionally, a plurality of bases are provided at the bottom of the switch cabinet, and the bases are connected to the switch cabinet via screws.

[0015] Optionally, a plurality of placement plates are arranged at intervals in the upper and lower parts of the switch cabinet, the placement plates are horizontally slidably connected to the switch cabinet, and a plurality of through holes are evenly distributed on the placement plates.

[0016] Optionally, the air intake assembly includes an air pump and a filter, the air pump is used to pass air into the switch cabinet, and the filter is arranged at the air intake end of the air pump.

[0017] Optionally, a humidity sensor electrically connected to the air pump is provided on the top of the switch cabinet.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0020] When the electrical switch cabinet for electrical engineering needs to dissipate heat and exhaust hot air from the electrical components in the inner cavity of the switch cabinet, the air intake component draws air into the inner cavity of the switch cabinet. At this time, the pressure in the inner cavity of the switch cabinet will gradually increase. Under the action of pressure, the pressure component will be expanded by the air, so that the air and hot air in the inner cavity of the switch cabinet are discharged through the exhaust groove. When the heat dissipation is completed, the pressure component is reset to prevent moisture on the ground from entering the inner cavity of the switch cabinet through the exhaust groove and causing the electrical components to get damp. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an electrical switch cabinet for electrical engineering proposed in an embodiment of the utility model;

[0022] Figure 2 A cross-sectional schematic diagram of an electrical switch cabinet for electrical engineering proposed in an embodiment of the utility model;

[0023] 1. Switch cabinet; 2. Air intake assembly; 21. Air pump; 22. Filter; 3. Exhaust groove; 4. Pressure assembly; 41. Baffle; 42. Torsion spring; 43. Partition; 5. Outer plate; 6. Base; 7. Screw; 8. Placement plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0025] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Further, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-on, one-piece fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0028] Combined with Figure 1 and 2 An electrical switch cabinet for electrical engineering of this embodiment includes a switch cabinet 1. An air intake assembly 2 is provided on the top of the switch cabinet 1. The air intake assembly 2 is used to pass external air into the switch cabinet 1. The bottom of the switch cabinet 1 is set off the ground and is provided with an exhaust groove 3. A plurality of bases 6 are provided at the bottom of the switch cabinet 1 to raise its height. A pressure assembly 4 is provided at the exhaust groove 3. When the pressure inside the switch cabinet 1 is greater than a preset value, the pressure assembly 4 opens the exhaust groove 3.

[0029] When the electrical switch cabinet for electrical engineering needs to dissipate heat and exhaust hot air from the electrical components in the inner cavity of the switch cabinet 1, the air intake component 2 draws air into the inner cavity of the switch cabinet 1. At this time, the pressure in the inner cavity of the switch cabinet 1 will gradually increase, and the pressure component 4 will be expanded by the air under the action of pressure, so that the air and hot air in the inner cavity of the switch cabinet 1 are discharged through the exhaust groove 3. When the heat dissipation is completed, the pressure component 4 is reset to prevent moisture on the ground from entering the inner cavity of the switch cabinet 1 through the exhaust groove 2 and causing the electrical components to get damp.

[0030] As a preferred embodiment of the present invention, the pressure assembly 4 includes a baffle 41, which is installed in the exhaust groove 3 or below the exhaust groove 3. One side of the baffle 41 is rotatably connected to the switch cabinet 1 through a torsion spring 42. The baffle 41 can be rotated downward under the action of pressure to open the exhaust groove 3. The elastic force generated by the torsion spring 42 drives the baffle 41 to rotate to a position to close the exhaust groove 3.

[0031] As a preferred embodiment of the present invention, the pressure assembly 4 also includes a partition 43 arranged in the middle of the exhaust groove 3, the partition 43 divides the exhaust groove 3 into two in the middle, and baffles 41 are provided on both sides of the partition 43, one side of the baffle 41 abuts on the partition 43, and the other side is rotatably connected to the switch cabinet 1 through a torsion spring 42. When the baffle 41 abuts against the partition 43, the exhaust groove 3 is in a closed state. Since there are two baffles 41 for controlling the opening and closing of the exhaust groove 3, when one of the baffles 41 fails and cannot be used, the other baffle 41 can still work to achieve pressure relief, and the fault tolerance rate is high.

[0032] As a preferred solution of the utility model, a V-shaped protrusion is provided at the bottom of the partition 43, and a slope that cooperates with the V-shaped protrusion is provided on the side of the baffle 41 that seals with the partition 43. The sealing is achieved by the cooperation of the slopes, which can ensure the sealing effect and will not affect the rotation of the baffle 41 due to the abutment between the baffle 41 and the partition 43.

[0033] As a preferred embodiment of the present invention, when an outer plate 5 is provided around the exhaust groove 3 at the bottom of the switch cabinet 1, the bottom of the outer plate 5 is open, and the outer plate 5 has a certain height, at least when the baffle 41 rotates to the bottom of the outer plate 5, the baffle 41 is in a state of opening the exhaust groove 3. By setting the outer plate 5, it can be avoided that the baffle 41 cannot be opened smoothly due to the height of the switch cabinet 1 being too low.

[0034] As a preferred embodiment of the present invention, a filter screen is detachably connected to the bottom of the outer plate 5. The filter screen is a mesh structure and has two main functions: one is to filter impurities in the exhausted gas, and the other is to limit the rotation angle of the baffle 41 to avoid frequent collisions with the ground and generate noise.

[0035] As a preferred embodiment of the present invention, at the bottom of the switch cabinet 1, the base 6 is connected to the switch cabinet 1 through a screw 7, and the height of the base 6 can be adjusted by rotating the screw 7, so that the height of the switch cabinet 1 is adjustable, and on an uneven ground, the switch cabinet 1 can be leveled by adjusting the length of the screw at different positions.

[0036] As a preferred embodiment of the present invention, a plurality of placement plates 8 are arranged at upper and lower intervals in the switch cabinet 1. The placement plates 8 are arranged horizontally and are horizontally slidably connected to the switch cabinet 1. Slide grooves are provided on both sides of the placement plates 8 in the switch cabinet 1. The two sides of the placement plates 8 are respectively slidably inserted into the slide grooves on both sides. A plurality of through holes are evenly distributed on the placement plates 8. When it is necessary to maintain the electrical components or lines, the cabinet door is opened and the placement plates 8 are pulled out.

[0037] As a preferred embodiment of the present invention, the air intake assembly 2 includes an air pump 21 and a filter 22. The air pump 21 is installed on the top of the switch cabinet 1. The air pump 21 is used to pass air into the switch cabinet 1. The filter 22 is arranged at the air intake end of the air pump 21 to filter the air entering the switch cabinet 1 to prevent external impurities from entering the switch cabinet 1.

[0038] As a preferred solution of the utility model, a humidity sensor electrically connected to the air pump 21 is provided on the top of the switch cabinet 1. Only when the external air meets the humidity requirements will the air pump 21 be turned on to extract air and dissipate heat. Of course, a drying structure can also be provided at the air inlet end of the air pump 21 to dry the air entering the switch cabinet 1.

[0039] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An electrical switch cabinet for electrical engineering, characterized in that: It comprises a switch cabinet, wherein an air intake assembly is arranged on the top of the switch cabinet, an exhaust groove is arranged off the ground at the bottom of the switch cabinet, a pressure assembly is arranged at the exhaust groove, and when the pressure inside the switch cabinet is greater than a preset value, the pressure assembly opens the exhaust groove.

2. An electrical switch cabinet for electrical engineering according to claim 1, characterized in that: The pressure assembly comprises a baffle, one side of which is rotatably connected to the switch cabinet via a torsion spring.

3. An electrical switch cabinet for electrical engineering according to claim 2, characterized in that: The pressure assembly also includes a partition plate arranged in the middle of the exhaust groove, and baffle plates are arranged on both sides of the partition plate. One side of the baffle plate abuts against the partition plate, and the other side is rotatably connected to the switch cabinet through a torsion spring.

4. An electrical switch cabinet for electrical engineering according to any one of claims 1 to 3, characterized in that: The bottom of the switch cabinet is provided with an outer plate surrounding the exhaust groove, and the bottom of the outer plate is open.

5. An electrical switch cabinet for electrical engineering according to claim 4, characterized in that: The bottom of the peripheral plate is detachably connected with a filter screen.

6. An electrical switch cabinet for electrical engineering according to any one of claims 1 to 3, characterized in that: A plurality of bases are provided at the bottom of the switch cabinet, and the bases are connected to the switch cabinet through screws.

7. An electrical switch cabinet for electrical engineering according to any one of claims 1 to 3, characterized in that: A plurality of placement plates are arranged in the switch cabinet at intervals up and down, the placement plates are horizontally slidably connected to the switch cabinet, and a plurality of through holes are evenly distributed on the placement plates.

8. An electrical switch cabinet for electrical engineering according to any one of claims 1 to 3, characterized in that: The air intake assembly comprises an air pump and a filter. The air pump is used to pass air into the switch cabinet, and the filter is arranged at the air intake end of the air pump.

9. An electrical switch cabinet for electrical engineering according to claim 8, characterized in that: A humidity sensor electrically connected to the air pump is provided on the top of the switch cabinet.

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