High-low voltage switch cabinet with lightning protection mechanism

Abstract

The utility model discloses a high-low voltage switch cabinet with a lightning protection mechanism, comprising a high-low voltage switch cabinet body, one end of the high-low voltage switch cabinet body is provided with a cabinet door through a hinge, the cabinet door is provided with a handle, the bottom of the high-low voltage switch cabinet body is provided with four foot pads, and the upper part of the inner cavity of the high-low voltage switch cabinet body is fixedly provided with an insulation box. A lightning protection mechanism is installed on the lower portion of an inner cavity of the high-low voltage switch cabinet body, one end of the high-low voltage switch cabinet body is fixedly connected with a ground wire connector, and the lightning protection mechanism is electrically connected with the ground wire connector through a wire. The device is protected from being damaged by lightning stroke overvoltage invading along a power line, so that safety protection is carried out on the device in the high-low voltage switch cabinet body, meanwhile, the zinc oxide lightning arrester is conveniently and rapidly replaced, and maintenance operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a high and low voltage switch cabinet with a lightning protection mechanism. Background Art

[0002] As the name implies, high and low voltage switchgear is a device that connects high or low voltage cables. Generally, power supply bureaus and substations use high voltage cabinets, which are then stepped down by transformers and then transferred to low voltage cabinets. Low voltage cabinets are then transferred to distribution boxes for various power users. They are nothing more than electrical equipment that assembles some protective devices such as switches and circuit breakers. High and low voltage switchgear is a kind of electrical equipment. The external line first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs.

[0003] The existing patent document with announcement number CN211829680U discloses a lightning protection type high and low voltage switch cabinet, including a high and low voltage switch cabinet body, a limiting device and a lightning protection device, slots are provided on both sides of the high and low voltage switch cabinet body, triangular grooves are provided on both sides of the top of the high and low voltage switch cabinet body, the limiting device is embedded in the top of the high and low voltage switch cabinet body, and the lightning protection device is movably plugged into the inside of the slot; the lightning protection device includes a square plate, a support block, a triangular plate, a zinc oxide lightning arrester and a wiring board, the support block is fixedly connected to the top of the square plate, limiting holes are provided on both sides of the square plate, the triangular plate is fixedly connected to the top of the support block, the square plate is movably plugged into the inside of the slot, the triangular plate is movably plugged into the inside of the triangular groove, the zinc oxide lightning arrester is fixedly connected to the middle of the top of the triangular plate, the wiring board is fixedly sleeved on the bottom of the outer surface of the zinc oxide lightning arrester, and a through wiring hole is provided on the side of the wiring board away from the zinc oxide lightning arrester.

[0004] The above-mentioned lightning protection type high and low voltage switch cabinet can solve the corresponding technical problems, but it is not easy to quickly install the zinc oxide lightning arrester during use. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a high and low voltage switch cabinet with a lightning protection mechanism that is easy to install quickly and conveniently, so as to solve the technical defect that it is difficult to quickly install the zinc oxide lightning arrester during the use of existing equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high and low voltage switch cabinet with a lightning protection mechanism, comprising: a high and low voltage switch cabinet body, a cabinet door is installed at one end of the high and low voltage switch cabinet body through a hinge, a handle is installed on the cabinet door, four foot pads are installed at the bottom of the high and low voltage switch cabinet body, an insulating box is fixedly installed on the upper part of the inner cavity of the high and low voltage switch cabinet body, a lightning protection mechanism is installed on the lower part of the inner cavity of the high and low voltage switch cabinet body, a ground wire connector is fixedly connected to one end of the high and low voltage switch cabinet body, and the lightning protection mechanism is electrically connected to the ground wire connector through a wire.

[0007] By setting up a lightning protection mechanism and connecting the conductor to the ground wire connector, the equipment can be protected from damage caused by lightning overvoltage invading along the power line, thereby providing safe protection for the equipment in the high and low voltage switch cabinets, and facilitating the rapid replacement of zinc oxide lightning arresters, greatly facilitating maintenance operations.

[0008] As a further solution of the utility model, the lightning protection mechanism includes a fixed block, which is fixedly connected to the inner wall of the high and low voltage switch cabinet body, and a plurality of slot bodies are fixedly connected to the fixed block. A U-shaped groove is opened at one end of the slot body, and a zinc oxide lightning arrester is inserted in the U-shaped groove to provide lightning protection for multiple devices in the high and low voltage switch cabinet body.

[0009] As a further solution of the utility model, the two ends of the zinc oxide lightning arrester are respectively fixedly connected with a wire connector and a U-shaped plug-in block, and the U-shaped plug-in block is inserted into the slot body to facilitate rapid installation and removal of the zinc oxide lightning arrester.

[0010] As a further solution of the utility model, a clamping plate is slidably connected in the slot body, two springs are installed between the clamping plate and the slot body, and one end of the clamping plate abuts against the U-shaped plug-in block. The elastic expansion and contraction ability of the spring can be used to push the clamping plate to abut against the U-shaped plug-in block, thereby fixing the zinc oxide lightning arrester and making an electrical connection at the same time.

[0011] As a further solution of the utility model, the top of the clamping plate extends out of the slot body and is provided with an arc-shaped guide plate to facilitate the U-shaped plug-in block at one end of the zinc oxide lightning arrester to be inserted into the slot body.

[0012] As a further solution of the utility model, a triangular protrusion is integrally formed at one end of the clamping plate to further limit and fix the U-shaped plug-in block inserted in the groove body.

[0013] Compared with the prior art, the high and low voltage switch cabinet with lightning protection mechanism provided by the utility model has the following beneficial effects: by setting up the lightning protection mechanism, the wire is connected to the ground wire connector to protect the equipment from damage caused by lightning overvoltage invading along the power line, thereby providing safety protection for the equipment in the high and low voltage switch cabinet, and at the same time, it is also convenient to quickly replace the zinc oxide lightning arrester, facilitating maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the high and low voltage switch cabinet in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lightning protection mechanism in the embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the dissection of the lightning protection mechanism in the embodiment of the utility model.

[0019] Figure numerals: 1. high and low voltage switch cabinet body; 2. cabinet door; 201. handle; 101. foot pad; 102. ground wire connector; 3. insulation box; 4. lightning protection mechanism; 401. fixing block; 402. slot body; 403. clamping plate; 404. spring; 405. triangular raised block; 5. zinc oxide lightning arrester; 501. wire connector; 502. U-shaped plug. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-Figure 4 The high and low voltage switch cabinet with a lightning protection mechanism in the embodiment of the utility model comprises a high and low voltage switch cabinet body 1, a cabinet door 2 is hingedly installed at one end of the high and low voltage switch cabinet body 1, a handle 201 is installed on the cabinet door 2, four foot pads 101 are installed at the bottom of the high and low voltage switch cabinet body 1, an insulating box 3 is fixedly installed on the upper part of the inner cavity of the high and low voltage switch cabinet body 1, a lightning protection mechanism 4 is installed at the lower part of the inner cavity of the high and low voltage switch cabinet body 1, a grounding connector 102 is fixedly connected to one end of the high and low voltage switch cabinet body 1, and the lightning protection mechanism 4 is electrically connected to the grounding connector 102 through a wire.

[0024] See also Figure 3 , 4 As shown, the lightning protection mechanism 4 includes a fixed block 401, which is fixedly connected to the inner wall of the high and low voltage switch cabinet body 1, and a plurality of slots 402 are fixedly connected to the fixed block 401. A U-shaped slot is provided at one end of the slot 402, and a zinc oxide lightning arrester 5 is inserted into the U-shaped slot. By providing a plurality of slots 402 and inserting the zinc oxide lightning arrester 5 into the slots 402, lightning protection can be provided for a plurality of devices in the high and low voltage switch cabinet body 1.

[0025] The two ends of the zinc oxide lightning arrester 5 are respectively fixedly connected with a wire connector 501 and a U-shaped plug-in block 502 . The U-shaped plug-in block 502 is plugged into the slot body 402 , so as to facilitate the rapid installation and removal of the zinc oxide lightning arrester 5 .

[0026] A clamping plate 403 is slidably connected in the slot body 402, and two springs 404 are installed between the clamping plate 403 and the slot body 402. One end of the clamping plate 403 abuts against the U-shaped plug 502. By utilizing the elastic expansion and contraction ability of the spring, the clamping plate 403 can be pushed to abut against the U-shaped plug 502, thereby fixing the zinc oxide lightning arrester 5 and electrically connecting it at the same time.

[0027] The top of the clamping plate 403 extends out of the slot body 402 and is provided with an arc-shaped guide plate, so as to facilitate the U-shaped plug-in block 502 at one end of the zinc oxide lightning arrester 5 to be plugged into the slot body 402 .

[0028] A triangular protrusion 405 is integrally formed at one end of the clamping plate 403 , which can limit the U-shaped plug-in block 502 inserted into the slot body 402 for further fixation.

[0029] When the embodiment of the utility model is used, first connect the ground wire connector 102 on one side of the high and low voltage switch cabinet body 1 to the ground wire, open the cabinet door 2, and insert the U-shaped plug 502 at one end of the zinc oxide lightning arrester 5 into the slot body 402. The U-shaped plug 502 pushes the clamping plate 403 to slide in the slot body 402 to compress the spring 404. After the U-shaped plug 502 is inserted into the slot body 402, the triangular protrusion block 405 is clamped on the top of the U-shaped plug 502. The clamping plate 403 clamps the U-shaped plug 502 under the elastic expansion force of the spring 404 and electrically connects it. The wire connector 501 at one end of the zinc oxide lightning arrester 5 is connected to the protected equipment through the wire, and the operation of the high and low voltage switch cabinet with a lightning protection mechanism is completed.

[0030] The utility model connects the conductor to the grounding connector 102 by setting a lightning protection mechanism 4 in the sea water to protect the equipment from damage caused by lightning overvoltage invading along the power line, thereby providing safety protection for the equipment in the high and low voltage switch cabinet body 1, and also facilitating the rapid replacement of the zinc oxide lightning arrester 5, facilitating maintenance operations.

[0031] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A high- and low-voltage switchgear with a lightning protection mechanism, comprising a high- and low-voltage switchgear cabinet body (1), characterized in that: A cabinet door (2) is installed at one end of the high- and low-voltage switch cabinet body (1) via a hinge, and a handle (201) is installed on the cabinet door (2). Four foot pads (101) are installed at the bottom of the high- and low-voltage switch cabinet body (1). An insulating box (3) is fixedly installed at the upper part of the inner cavity of the high- and low-voltage switch cabinet body (1), and a lightning protection mechanism (4) is installed at the lower part of the inner cavity of the high- and low-voltage switch cabinet body (1). One end of the high- and low-voltage switch cabinet body (1) is fixedly connected to a grounding connector (102), and the lightning protection mechanism (4) is electrically connected to the grounding connector (102) via a wire.

2. The high and low voltage switch cabinet with lightning protection mechanism according to claim 1 is characterized in that: The lightning protection mechanism (4) comprises a fixed block (401), the fixed block (401) is fixedly connected to the inner wall of the high and low voltage switch cabinet body (1), a plurality of slot bodies (402) are fixedly connected to the fixed block (401), one end of the slot body (402) is provided with a U-shaped slot, and a zinc oxide lightning arrester (5) is inserted into the U-shaped slot.

3. The high and low voltage switch cabinet with lightning protection mechanism according to claim 2 is characterized in that: The two ends of the zinc oxide lightning arrester (5) are respectively fixedly connected with a wire connector (501) and a U-shaped plug-in block (502), and the U-shaped plug-in block (502) is plugged into the slot body (402).

4. The high and low voltage switch cabinet with lightning protection mechanism according to claim 3 is characterized in that: A clamping plate (403) is slidably connected inside the groove body (402), two springs (404) are installed between the clamping plate (403) and the groove body (402), and one end of the clamping plate (403) is in contact with the U-shaped plug block (502).

5. The high and low voltage switch cabinet with lightning protection mechanism according to claim 4 is characterized in that: The top of the clamping plate (403) extends out of the slot body (402) and is provided with an arc-shaped guide plate.

6. The high and low voltage switch cabinet with lightning protection mechanism according to claim 5 is characterized in that: A triangular protruding block (405) is integrally formed at one end of the clamping plate (403).

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