Mechanism chamber of alternating-current metal-enclosed switchgear and switch cabinet

Abstract

A mechanism chamber of an AC metal enclosed switchgear and a switch cabinet, the mechanism chamber comprises a mechanism chamber body, an inner cavity of the mechanism chamber body is provided with a switch operation mechanism, the front end of the mechanism chamber body is open, and the rear side of the mechanism chamber body is hermetically connected with the switch chamber through a first sealing structure. The front end of the mechanism chamber body is in sealing connection with a front door through a second sealing structure, the front door adopts a double-layer door structure and comprises an outer door and an inner door which are arranged at an interval, and the second sealing structure is arranged between the front end of the mechanism chamber body and the outer door; the switch cabinet comprises a switch chamber, the mechanism chamber and a base, the switch chamber is installed on the rear side of the mechanism chamber in a sealed mode, and the mechanism chamber and the switch chamber are installed on the base. The high-voltage switch cabinet is simple in structural design and reliable in sealing, the adaptive capacity of the high-voltage switch cabinet to the environment can be greatly improved, full-working-condition operation is truly achieved, the sealing space is larger, the cost increment is reduced to the maximum extent, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch equipment, in particular to a mechanism room and a switch cabinet of an AC metal-enclosed switch equipment. Background Art

[0002] AC metal-enclosed switchgear refers to switchgear and control equipment that is completely enclosed by a grounded metal shell except for the inlet and outlet lines. It has the remarkable characteristics of small size, light weight, beautiful appearance, easy operation, long life, high parameters, no pollution, and low maintenance. It is suitable for AC 50hz, 10kv power network as the reception and distribution of electric energy.

[0003] The high-voltage switch is the core component of the high-voltage AC metal-enclosed switchgear (hereinafter referred to as the switchgear). The operating mechanism is the heart of the high-voltage switch and is installed in the mechanism room of the high-voltage switchgear. The opening and closing actions of the high-voltage switch are mainly completed by the operating mechanism driving the transmission system. The switchgear includes the mechanism room, the switch room and the base. The base is divided into the cable room in the front and the pressure relief room in the rear.

[0004] The mechanism room of traditional high-voltage switchgear is not sealed, and the mechanism room is easily affected by the external environment. When operating in a dusty, humid, corrosive gas, or highly polluted environment, the operating mechanism is easily affected by the environment and rusted or dusted, causing the operating mechanism to not operate or malfunction, resulting in power operation failure, which seriously threatens the safety of personnel and equipment. One of the main measures to solve this problem is to seal the mechanism room to protect the operating mechanism from the influence of the external environment.

[0005] At present, most high-voltage switch cabinets on the market have only been treated with anti-corrosion treatments such as galvanizing for the operating mechanism, which will cause rust after long-term operation. Only a small number of switch cabinets use a sealing mechanism, which includes a sealing box, an operating mechanism installed in the sealing box, and a sealing box installed in the mechanism room. A large number of flanges and sealing rings are used for dynamic sealing between the sealing box, the operating mechanism and the mechanism room. The operating holes, indicator holes, and outlets of the interlocking device on it need to be sealed one by one, so that the shafts and sheet metal parts with related locking, operation and other functions can pass through the sealing box. The sealing mechanism has problems such as inconvenient maintenance, unreliable sealing, high cost, and inconvenient installation and operation.

[0006] Therefore, how to design a mechanism room and switch cabinet for AC metal-enclosed switchgear with a simple structure and reliable sealing, which can greatly improve the environmental adaptability of high-voltage switchgear, truly realize full-condition operation, have a larger sealing space, minimize the increase in costs, and save resources, is a topic that the inventor has devoted himself to studying. Utility Model Content

[0007] The purpose of the utility model is to provide a mechanism room and switch cabinet for an AC metal-enclosed switchgear, which has a simple structure and reliable sealing, can greatly improve the environmental adaptability of the high-voltage switch cabinet, truly realize full-condition operation, have a larger sealing space, minimize the cost increase, and save resources.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a mechanism chamber of an AC metal-enclosed switch device, including a mechanism chamber body, the inner cavity of the mechanism chamber body is provided with a switch operating mechanism, wherein the front end of the mechanism chamber body is open, the rear side of the mechanism chamber body is sealed and connected to the switch chamber through a first sealing structure, the front end of the mechanism chamber body is sealed and connected to the front door through a second sealing structure, the front door adopts a double-layer door structure, the front door includes an outer door and an inner door arranged at intervals, and the second sealing structure is arranged between the front end of the mechanism chamber body and the outer door.

[0009] The utility model discloses a mechanism chamber of an AC metal-enclosed switch device, wherein the first sealing structure adopts a first sealing gasket.

[0010] The utility model discloses a mechanism chamber of an AC metal-enclosed switchgear, wherein the mechanism chamber body is mounted on the switch chamber by means of fasteners, and after fastening, the sealing between the mechanism chamber body and the switch chamber is achieved by squeezing the sealing gasket.

[0011] The utility model provides a mechanism chamber of an AC metal-enclosed switch device, wherein the inner door is installed on the mechanism chamber body through a hinge structure.

[0012] The utility model discloses a mechanism chamber of an AC metal-enclosed switch device, wherein the second sealing structure adopts a second sealing gasket.

[0013] The utility model discloses a mechanism chamber of an AC metal-enclosed switchgear, wherein a sealing box with an open front end is provided on the bottom surface of the mechanism chamber body, and the parts that need to be sealed at the lower part of the interlocking device of the switch cabinet are covered in the inner cavity of the sealing box, and the front end of the sealing box is closed by a cable compartment door when the switch cabinet is in operation, and the sealing box and the cable compartment door are sealed by a third sealing structure.

[0014] The utility model discloses a mechanism chamber of an AC metal-enclosed switch device, wherein the third sealing structure adopts a third sealing gasket.

[0015] A switch cabinet comprises a switch room, a mechanism room of the AC metal-enclosed switch device and a base, wherein the switch room is sealed and installed on the rear side of the mechanism room, and the mechanism room and the switch room are installed on the base.

[0016] After adopting the above scheme, the mechanism room and switch cabinet of the utility model AC metal-enclosed switchgear adopt an integral sealing method, and seal between the mechanism room body and the switch room, between the mechanism room body and the outer door of the front door, and between the sealing box on the mechanism room body and the cable compartment door of the switch cabinet, so that the entire mechanism room and the interlocking device are all sealed. It adopts a widely used mature sealing method with a simple structure and reliable sealing; it greatly improves the adaptability of the high-voltage switch cabinet to the environment from a technical essence, and truly realizes full-condition operation; its sealed space is larger, protecting more equipment; without changing the space of the mechanism room, it does not increase the difficulty of maintenance and repair of any parts in the mechanism room; it uses a commonly used sealing method to minimize the increase in cost and save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the switch cabinet embodiment of the utility model;

[0018] Figure 2 It is a front view structural diagram of the switch cabinet embodiment of the utility model with the outer door of the mechanism chamber removed;

[0019] Figure 3 It is a right side structural schematic diagram of a switch cabinet embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the left side cross-sectional structure of an embodiment of the switch cabinet of the utility model;

[0021] Figure 5 yes Figure 3 Schematic diagram of the local A enlarged structure;

[0022] Figure 6 yes Figure 4 Schematic diagram of the local B enlarged structure;

[0023] Figure 7 yes Figure 4 Schematic diagram of the local C enlarged structure.

[0024] Number Description:

[0025] 1-Switch room 2-Mechanism room

[0026] 3- Base 4- Mechanism room body

[0027] 5-First switch operating mechanism 6-Second switch operating mechanism

[0028] 7-First sealing gasket 8-Front door

[0029] 9-External door 10-Inner door

[0030] 11- hinge structure 12- second sealing gasket

[0031] 13-cable room 14-pressure relief room

[0032] 15-cable compartment door 16-interlocking device

[0033] 17-seal box 18-third seal gasket DETAILED DESCRIPTION

[0034] The present invention is described below based on the embodiments shown in the accompanying drawings. The embodiments disclosed this time can be considered to be illustrative in all aspects and not restrictive. The scope of the present invention is not limited by the description of the following embodiments, but is only shown by the scope of the claims, and includes all variations with the same meaning as the scope of the claims and within the scope of the claims.

[0035] The structure of the mechanism chamber of the AC metal-enclosed switchgear of the utility model is described below in conjunction with specific embodiments.

[0036] like Figures 1 to 4 As shown, the switch cabinet of the utility model comprises a switch room 1, a mechanism room 2 of an AC metal-enclosed switch device and a base 3, wherein the switch room 1 is sealed and installed at the rear side of the mechanism room 2, and the mechanism room 2 and the switch room 1 are installed on the base 3. The base 3 has two inner chambers: a cable room 13 at the front and a pressure relief room 14 at the rear.

[0037] Specifically, the mechanism chamber 2 includes a mechanism chamber body 4 with an open front end, and the mechanism chamber body 4 is a cubic box structure. The inner cavity of the mechanism chamber body 4 is provided with a first switch operating mechanism 5 and a second switch operating mechanism 6 spaced apart from each other. The rear side of the mechanism chamber body 4 is sealed and connected to the switch chamber 1 through a first sealing structure. The first sealing structure of this embodiment adopts a first sealing gasket 7. Figure 5 As shown, the mechanism chamber body 4 is installed on the switch chamber 1 by fasteners such as bolts and nuts, and the first sealing gasket 7 is squeezed after the fasteners are tightened, thereby achieving sealing between the mechanism chamber body 4 and the switch chamber 1.

[0038] The front end of the mechanism chamber body 4 is sealed and connected to the front door 8 through a second sealing structure. In this embodiment, the front door 8 adopts a double-layer door structure. The front door 8 includes an outer door 9 and an inner door 10 as a functional door. Figure 2 As shown, the inner door 10 is used to install the operation, control, and display components of the switch cabinet, such as buttons, electromagnetic locks, power display, observation windows, etc., or interface devices such as operation holes and cover plates. The outer door 9 and the inner door 10 are arranged in a front-to-back interval. The inner door 10 is hingedly mounted on the mechanism chamber body 4 through a hinge structure 11. The second sealing structure is arranged between the front end of the mechanism chamber body 4 and the outer door 9. In this embodiment, the second sealing structure adopts a second sealing gasket 12. Figure 6As shown, the outer door 9 and the mechanism chamber body 4 are connected and fastened by hinges and door locks. When the outer door 9 and the mechanism chamber body 4 are fastened, the front end outer edge of the mechanism chamber body 4 and the outer door 9 together squeeze the second sealing gasket 12 to achieve sealing between the mechanism chamber body 4 and the front door 8.

[0039] The switch cabinet has interlocking requirements. The cable compartment door 15 of the cable room 13 can be opened only after meeting certain requirements. This requirement is generally achieved by the interlocking device 16. The interlocking device 16 is installed near the bottom of the mechanism room 2. The transmission parts of the interlocking device 16 are usually composed of sheet metal and shaft rod parts, such as transmission rods, etc. These parts need to be sealed. The sealing of these parts is completed by the sealing box 17, the cable compartment door 15 and the third sealing structure in the utility model. Specifically, refer to Figure 7 As shown, a sealing box 17 with an open front end is welded to the bottom surface of the mechanism chamber body 4, and the above-mentioned parts that need to be sealed are located at the lower part of the interlocking device 16, and these parts extend into the inner cavity of the sealing box 17. The front end of the sealing box 17 is closed by the cable compartment door 15 when the switchgear is in operation, and the sealing box 17 and the cable compartment door 15 are sealed by a third sealing structure. The third sealing structure of this embodiment adopts a third sealing gasket 18, and the third sealing gasket 18, the first sealing gasket 7, and the second sealing gasket 12 together seal the mechanism chamber 2. This structure does not affect the interlocking function of the interlocking device 16, and can simply and reliably solve the sealing problem of the interlocking device 16.

[0040] The utility model adopts an integral sealing method, a first sealing gasket 7 is arranged between the mechanism room body 4 and the switch room 1, a second sealing gasket 12 is arranged between the mechanism room body 4 and the outer door 9, and a third sealing gasket 18 is arranged between the sealing box 17 of the mechanism room body 4 and the cable compartment door 15 for sealing, so that the entire mechanism room and the interlocking device 16 are all sealed, so that the protection level of the mechanism room 2 can reach IP65, which greatly improves the adaptability of the switch cabinet to the environment from the technical essence, and truly realizes full-condition operation. The present invention adopts a widely used mature sealing method, with a simple structure and reliable sealing; its sealing space is larger, protecting more equipment; without changing the space of the mechanism room, it does not increase the difficulty of maintenance and repair of any parts in the mechanism room; the structural design does not change the components, structure, appearance, and function of the original equipment, and various cabinet types can be used, and its use of commonly used sealing methods minimizes the increase in cost and saves resources.

[0041] The above-described embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope of the claims of the present invention.

Claims

1. A mechanism chamber of an AC metal-enclosed switchgear, comprising a mechanism chamber body, wherein the inner cavity of the mechanism chamber body is provided with a switch operating mechanism, characterized in that: The front end of the mechanism room body is open, the rear side of the mechanism room body is sealed to the switch room via a first sealing structure, the front end of the mechanism room body is sealed to the front door via a second sealing structure, the front door adopts a double-layer door structure, the front door includes an outer door and an inner door arranged at intervals, and the second sealing structure is arranged between the front end of the mechanism room body and the outer door.

2. The mechanism room of the AC metal-enclosed switchgear according to claim 1, characterized in that: The first sealing structure adopts a first sealing gasket.

3. The mechanism room of the AC metal-enclosed switchgear according to claim 2, characterized in that: The mechanism chamber body is mounted on the switch chamber by means of fasteners, and after fastening, the sealing between the mechanism chamber body and the switch chamber is achieved by squeezing the sealing gasket.

4. The mechanism room of the AC metal-enclosed switchgear according to claim 1, characterized in that: The inner door is installed on the mechanism chamber body through a hinge structure.

5. The mechanism room of the AC metal-enclosed switchgear according to claim 1, characterized in that: The second sealing structure adopts a second sealing gasket.

6. The mechanism room of the AC metal-enclosed switchgear according to claim 5, characterized in that: A sealing box with an open front end is provided on the bottom surface of the mechanism chamber body, and the parts that need to be sealed at the lower part of the interlocking device of the switch cabinet are covered in the inner cavity of the sealing box. The front end of the sealing box is closed by the cable compartment door when the switch cabinet is in operation, and the sealing box and the cable compartment door are sealed by a third sealing structure.

7. The mechanism room of the AC metal-enclosed switchgear according to claim 6, characterized in that: The third sealing structure adopts a third sealing gasket.

8. A switch cabinet, characterized in that: It comprises a switch room, a mechanism room of the AC metal-enclosed switch device according to any one of claims 1 to 7, and a base, wherein the switch room is sealed and installed on the rear side of the mechanism room, and the mechanism room and the switch room are installed on the base.

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