A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting

Abstract

The utility model discloses a switch cabinet pressure relief and heat dissipation structure device capable of self-resetting, comprising a base provided with a plurality of pressure relief holes; a dust screen arranged around the base; an isolation screen arranged on the top of the dust screen; a cover plate arranged in close contact with the isolation screen; the cover plate is movably connected to the base via a telescopic structure. The utility model aims to solve the technical problems existing in the prior art and provide a switch cabinet pressure relief and heat dissipation structure device capable of self-resetting, which can not only meet the daily heat dissipation requirements of the switch cabinet, but also enable the high-temperature gas generated to release pressure through the device when a short circuit occurs in the internal components of the switch cabinet. The combination of the two functions ensures the stability and safety of the switch cabinet operation.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and in particular to a switch cabinet pressure relief and heat dissipation structure device capable of self-resetting. Background Art

[0002] Switchgear is an important part of the power system, used to control, protect and distribute electrical equipment; it usually includes switches, circuit breakers, protection devices, instruments, etc., used to control and transmit electrical energy. When the switchgear is working, its internal components will generate heat in a closed space, and when a short circuit occurs, it will generate great pressure and high temperature. The use of pressure relief devices and heat dissipation devices can meet the pressure relief and heat dissipation of the switchgear and ensure the stability and safety of the equipment. Therefore, the application prospects of this technology are very necessary and broad.

[0003] However, the existing technology has the following problems:

[0004] (1) The existing switch cabinet pressure relief device needs to be replaced manually, which affects the continuity of production and service.

[0005] (2) After pressure relief occurs in the existing switch cabinet pressure relief device, the pressure relief plate will deform and become scrapped, which is usually irreversible and needs to be replaced or repaired to restore the normal operation of the equipment, and there is a waste of consumables.

[0006] (3) The existing switch cabinet does not have an effective heat dissipation structure. When the switch cabinet is running for a long time, a large amount of heat will be generated. The lack of effective heat dissipation causes the internal temperature to be too high, causing damage to the internal components of the switch cabinet. Utility Model Content

[0007] 1. Technical problems to be solved by the utility model

[0008] The utility model aims to solve the technical problems existing in the prior art and provide a switch cabinet pressure relief and heat dissipation structure device capable of self-resetting, which can not only meet the daily heat dissipation requirements of the switch cabinet, but also enable the high-temperature gas generated to release pressure through the device when a short circuit occurs in the internal components of the switch cabinet. The combination of the two functions ensures the stability and safety of the switch cabinet operation.

[0009] 2. Technical solution

[0010] In order to solve the above problems, the technical solution provided by the utility model is:

[0011] A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting comprises a base provided with a plurality of pressure relief holes; a dust screen arranged around the base; an isolation net arranged on the top of the dust screen; a cover plate fitted with the isolation net; the cover plate is movably connected to the base up and down through a telescopic structure.

[0012] Optionally, the base is provided with a plurality of support columns, and the support columns are connected to the dustproof net.

[0013] Optionally, the telescopic structure includes a lifting rod movably inserted into the support column, and the lifting rod is fixedly connected to the cover plate.

[0014] Optionally, a lower limit ring is provided at the lower end of the lifting rod, and an upper limit ring is provided at the upper end of the support column, and the lower limit ring cooperates with the upper limit ring to limit the lifting rod from separating from the support column.

[0015] Optionally, the opening diameter of the dustproof net is not greater than 1 mm.

[0016] Optionally, the dustproof net is detachably arranged on the base.

[0017] Optionally, the opening diameter of the isolation net is not greater than 1 mm.

[0018] Optionally, the isolation net is detachably arranged on the top of the dustproof net.

[0019] Beneficial Effects

[0020] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0021] (1) The self-resetting structure can reduce manual operation, reduce workload and improve safety.

[0022] (2) The combination of pressure relief and heat dissipation structure can not only facilitate the daily heat dissipation of the switch cabinet, but also meet the pressure relief requirements and ensure the continuous and stable operation of the switch cabinet.

[0023] (3) The removable dust screen can filter out a lot of dust and can be cleaned and replaced after long-term operation, which can maintain the best heat dissipation and dust prevention effects.

[0024] (4) The isolation net can prevent the internal components of the cabinet from splashing when a short circuit occurs internally and pressure relief begins, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the heat dissipation state of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the utility model in the pressure relief state;

[0027] Figure 3 This is a schematic diagram of the structure of the support column and telescopic rod of the utility model;

[0028] Figure 4 It is a schematic diagram of the pressure relief hole of the cabinet of the utility model;

[0029] 1. Base; 11. Pressure relief hole; 2. Dustproof net; 3. Isolation net; 4. Cover plate; 5. Support column; 51. Upper limit ring; 6. Lifting rod; 61. Lower limit ring. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0034] Combined with Figure 1-4A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting in this embodiment includes a base 1, which is located at the top of the switch cabinet. A plurality of pressure relief holes 11 are provided on the base 1. The pressure relief holes 11 can also be directly opened on the top plate of the switch cabinet, and the plurality of pressure relief holes 11 are connected to each chamber inside the switch cabinet; a dustproof net 2, which is vertically arranged on the base 1, and the space formed by the dustproof net 2 covers all the pressure relief holes 11; an isolation net 3, which is horizontally arranged on the top of the dustproof net 2; a cover plate 4, which is fitted with the isolation net 3 to completely cover the top air outlet of the dustproof net 2; the cover plate 4 is movably connected to the base 1 through a telescopic structure, and the cover plate 4 can move up and down relative to the isolation net 3.

[0035] The daily heat dissipation status of the self-resetting switch cabinet pressure relief heat dissipation structure device is as follows: Figure 1 As shown, at this time, the cover plate 4 of the device completely covers the top air outlet and is completely in contact with the isolation net 3. The external air enters the device through the dustproof net 2 surrounding the device, and then enters into each chamber of the switch cabinet through the pressure relief hole 11 on the top of the cabinet, thereby dissipating the heat for the working electrical equipment components. The heat generated by the electrical equipment components inside the switch cabinet during operation rises through the pressure relief hole 11 and enters into the heat dissipation and pressure relief device to form a tiny air pressure difference, which can quickly pass through the large-area annular dustproof net 2, greatly improving the heat dissipation efficiency.

[0036] The pressure relief state of the pressure relief heat dissipation structure device of the switch cabinet capable of self-resetting is as follows: Figure 2 As shown, when a short circuit occurs in the equipment components inside the switch cabinet, an explosion arc is generated, which generates a large amount of heat and creates a high pressure inside the switch cabinet, which then impacts the cover plate 4 to completely rise and form a pressure relief space. With a larger air outlet space, a large amount of high temperature and harmful gases generated inside the switch cabinet can be discharged through the heat dissipation and pressure relief device. The protective space formed below the isolation net 3 can effectively prevent the splashing of components inside the switch cabinet, greatly improving the safety of the device. The pressure relief space formed above the isolation net greatly improves the efficiency of pressure relief, reduces the impact on the device, and reduces the possibility of the switch cabinet bursting. After the pressure relief is completed, the cover top 4 automatically drops under the drive of its own weight until it is completely in contact with the isolation net 3. This self-resetting action makes the device reusable.

[0037] As a preferred solution of the utility model, a plurality of support columns 5 are provided on the base 1. The support columns 5 are vertically arranged and the lower ends are fixedly connected to the base 1. The support columns 5 are connected to the dustproof net 2. The support columns 5 are used to support the dustproof net 2 to ensure the stability of the dustproof net 2 during pressure relief.

[0038] As a preferred embodiment of the utility model, the telescopic structure includes a lifting rod 6 movably inserted into the support column 5. The support column 5 is an internal hollow structure. The lifting rod 6 is fixedly connected to the cover plate 4. The lifting rod 6 is used to limit the movement direction of the cover plate 4. In order to prevent the lifting rod 6 from detaching from the support column 5 when rising upward, a lower limit ring 61 is provided at the lower end of the lifting rod 6, and an upper limit ring 51 is provided at the upper end of the support column 5. The inner diameter of the upper limit ring 51 is smaller than the outer diameter of the lower limit ring 61, and the lower limit ring 61 cannot cross the upper limit ring 51.

[0039] As a preferred solution of the utility model, in order to ensure the dustproof effect and prevent smaller parts from being ejected outward, the opening diameter of the dustproof net 2 is not greater than 1 mm, and the opening diameter of the isolation net 3 is not greater than 1 mm.

[0040] As a preferred solution of the utility model, the dustproof net 2 is detachably arranged on the base 1. The detachable dustproof net 2 can filter out a lot of dust and can be cleaned and replaced after long-term operation, so as to maintain the best heat dissipation and dustproof effects. In this embodiment, the dustproof net 2 is detachably connected to the support column 5 to achieve a detachable connection with the base 1.

[0041] As a preferred solution of the utility model, the isolation net 3 is detachably arranged on the top of the dustproof net 2, so that the isolation net 3 can be replaced in time when it is deformed by a large impact. In this embodiment, the isolation net 3 is detachably connected to the lifting rod 6.

[0042] 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. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting, characterized in that: include The base is provided with a plurality of pressure relief holes; A dustproof net, surroundingly arranged on the base; An isolation net, arranged on the top of the dustproof net; A cover plate, arranged in close contact with the isolation net; The cover plate is movably connected to the base up and down through a telescopic structure.

2. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to claim 1, characterized in that: A plurality of support columns are arranged on the base, and the support columns are connected to the dustproof net.

3. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to claim 2, characterized in that: The telescopic structure comprises a lifting rod movably inserted into the supporting column, and the lifting rod is fixedly connected to the cover plate.

4. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to claim 3, characterized in that: A lower limit ring is provided at the lower end of the lifting rod, and an upper limit ring is provided at the upper end of the support column. The lower limit ring cooperates with the upper limit ring to limit the lifting rod from separating from the support column.

5. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to any one of claims 1 to 4, characterized in that: The opening diameter of the dustproof net is not greater than 1 mm.

6. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to claim 5, characterized in that: The dustproof net is detachably arranged on the base.

7. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to any one of claims 1 to 4, characterized in that: The opening diameter of the isolation net is not greater than 1 mm.

8. A switch cabinet pressure relief and heat dissipation structure device capable of self-resetting according to claim 7, characterized in that: The isolation net is detachably arranged on the top of the dustproof net.

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