Protection device of electric power high-voltage mutual inductor

Abstract

The utility model relates to the technical field of protection devices, and discloses a protection device of an electric power high-voltage mutual inductor, which comprises a base, a protection box is arranged at the top of the base, a protection assembly is arranged at the top of the protection box, and a heat dissipation assembly is arranged in the protection box. The protection device of the electric power high-voltage mutual inductor is provided with a first spring, a protection plate, a damper, a movable plate, a movable plate, a sliding rod and a second spring, the protection plate can have elasticity through the first spring arranged at the top of the protection box, and when an object on the protection plate falls onto the protection plate, the protection plate has a buffering effect; and meanwhile, a movable plate enables a movable plate to move, and a second spring on one side of the movable plate can further buffer downward pressure, so that the effect of protecting the top of the protection box is achieved, and damage to equipment in the protection box is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, in particular to a protection device for a power high-voltage mutual inductor. Background Art

[0002] Power high-voltage transformer is an important equipment in the power system. It is mainly used to convert high voltage or large current into low voltage or small current for measurement, protection and control. In the power system, it is widely used in power plants, substations, distribution systems, smart grids and renewable energy systems.

[0003] Since it works in a high voltage and high current environment, once a fault or damage occurs, it may have a serious impact on the stable operation of the entire power system and even cause the system to collapse. Therefore, protecting the high-voltage transformer is a necessary condition to ensure the safe and stable operation of the power system.

[0004] The prior art patent document with publication number CN219435686U provides a protection device for a high-voltage electric transformer. By setting a protection mechanism, personnel can protect the transformer body to avoid the situation in which the ceramic on the outer surface of the high-voltage transformer is cracked due to carelessness of the maintenance personnel during power maintenance services.

[0005] In the above-mentioned prior art, although the protection device prevents the ceramic on the outer surface of the high-voltage transformer from being cracked due to the carelessness of the maintenance personnel during power maintenance services by setting up a protection mechanism, the protection device in the patented technology only protects it by setting up a protection box on the outside. If objects falling from a high altitude are encountered, the top of the protection box may be damaged, and then the equipment on the top of the transformer body may be damaged, reducing the protection effect. Therefore, we need a protection device for power high-voltage transformers. Utility Model Content

[0006] The purpose of the utility model is to provide a protection device for a high-voltage electric transformer, so as to solve the problem that the protection device in the patent technology proposed in the above-mentioned background technology is only protected by a protection box arranged on the outside, and if encountering objects falling from a high altitude, the top of the protection box may be damaged, and then the equipment on the top of the transformer body may be damaged, thereby reducing the protection effect.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A protection device for a high-voltage electric power transformer comprises a base, a protection box is installed on the top of the base, a protection component is arranged on the top of the protection box, and a heat dissipation component is installed inside the protection box;

[0009] The protection assembly includes a first spring, the top of the first spring is fixedly connected to a protection plate, and a damper is installed at the bottom of the protection plate, the bottom of the protection plate is rotatably connected to a movable plate, and the bottom of the movable plate is hinged to a movable plate, the inner wall of the movable plate is slidably connected to a sliding rod, and the outer surface of the sliding rod is sleeved with a second spring;

[0010] The heat dissipation component includes a mounting groove, the inner wall of the mounting groove is snap-connected with a mounting block, and one side of the mounting block is fixedly connected with a dust screen, the inner wall of the protection box is installed with a motor, and the output end of the motor is detachably connected with a screw rod through a coupling, and the outer surface of the screw rod is threadedly connected with a fan.

[0011] Preferably, a mounting mechanism is provided on one side of the protection box, and a transformer body is installed on the top of the base.

[0012] Preferably, the protection box forms an elastic structure with the protection plate through a first spring, and the first spring is arranged between the protection box and the protection plate, and the damper is arranged inside the first spring.

[0013] Preferably, the protective plate forms a movable structure through a movable plate and a movable plate, and the movable plate is arranged between the protective plate and the movable plate.

[0014] Preferably, the movable plate forms an elastic structure with the slide rod through the second spring, and one end of the slide rod is arranged to penetrate the inner wall of the second spring.

[0015] Preferably, the protection box forms a snap-fit ​​structure with the mounting block through the mounting groove, and the shape and size of the mounting groove match the shape and size of the mounting block, and the number of the dustproof nets is two.

[0016] Preferably, the motor forms a lifting structure with the fan through a screw rod, and the external thread of the screw rod matches the internal thread of one side of the fan.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the protection device for the electric high-voltage mutual inductor is

[0018] First, the utility model is provided with a first spring, a protective plate, a damper, a movable plate, a moving plate, a sliding rod and a second spring. The first spring arranged on the top of the protective box can make the protective plate elastic. When an object falls onto the protective plate from above, the protective plate has a buffering effect, and the elastic reaction force of the first spring will be offset by the damper. At the same time, the movable plate makes the moving plate move, and the second spring on one side of the moving plate can further buffer the downward pressure, thereby achieving the effect of protecting the top of the protective box to avoid damage to the equipment inside the protective box.

[0019] Second, the utility model is provided with an installation groove, an installation block, a dustproof net, a motor, a screw and a fan. By extending the installation block on one side of the dustproof net into the installation groove, it can be installed with the protection box. Dustproof nets are installed on both sides of the protection box, which can achieve heat dissipation and dust prevention effects. Starting the motor can make the screw drive the fan to move up and down. The fan can blow air to cool the transformer body, which can further improve the heat dissipation effect of the transformer body, so as to prevent the enclosed space in the protection box from reducing the heat dissipation of the transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the movable plate and the activity plate of the utility model;

[0023] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. base; 2. protection box; 3. protection assembly; 301. first spring; 302. protection plate; 303. damper; 304. movable plate; 305. moving plate; 306. slide bar; 307. second spring; 4. mounting mechanism; 5. transformer body; 6. heat dissipation assembly; 601. mounting slot; 602. mounting block; 603. dust screen; 604. motor; 605. screw rod; 606. fan. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A protection device for a high-voltage electric power transformer comprises a base 1, a protection box 2 is installed on the top of the base 1, a protection component 3 is arranged on the top of the protection box 2, and a heat dissipation component 6 is installed inside the protection box 2;

[0027] The protection component 3 includes a first spring 301, the top of the first spring 301 is fixedly connected to a protection plate 302, and a damper 303 is installed at the bottom of the protection plate 302, the bottom of the protection plate 302 is rotatably connected to a movable plate 304, and the bottom of the movable plate 304 is hinged to a moving plate 305, the inner wall of the moving plate 305 is slidably connected to a sliding rod 306, and the outer surface of the sliding rod 306 is sleeved with a second spring 307;

[0028] The heat dissipation component 6 includes a mounting groove 601, the inner wall of the mounting groove 601 is snap-connected with a mounting block 602, and one side of the mounting block 602 is fixedly connected with a dust screen 603, the inner wall of the protective box 2 is installed with a motor 604, and the output end of the motor 604 is detachably connected with a screw rod 605 through a coupling, and the outer surface of the screw rod 605 is threadedly connected with a fan 606.

[0029] Through the above technical solution, the first spring 301 set on the top of the protection box 2 can make the protection plate 302 elastic. When an object falls onto the protection plate 302 from above, the protection plate 302 has a buffering effect, and the elastic reaction force of the first spring 301 will be offset by the damper 303. At the same time, the movable plate 304 makes the movable plate 305 move, and the second spring 307 on the side of the movable plate 305 can further buffer the downward pressure, thereby achieving the effect of protecting the top of the protection box 2 to avoid damage to the equipment inside the protection box 2.

[0030] Specifically, a mounting mechanism 4 is provided on one side of the protection box 2 , and a transformer body 5 is installed on the top of the base 1 .

[0031] Through the above technical solution, it is convenient for the installation mechanism 4 to effectively install and fix the protection box 2 and the base 1, and the transformer body 5 is protected inside the protection box 2.

[0032] Specifically, the protection box 2 forms an elastic structure through the first spring 301 and the protection plate 302 , and the first spring 301 is arranged between the protection box 2 and the protection plate 302 , and the damper 303 is arranged inside the first spring 301 .

[0033] Through the above technical scheme, the protection box 2 can make the protective plate 302 elastic under the action of the first spring 301, so that the protective plate 302 can move elastically up and down. When a heavy object is applied to the protective plate 302, the first spring 301 can be compressed, and the damper 303 can buffer the rebound force of the first spring 301, thereby achieving the effect of protecting the protective plate 302 from falling objects from high altitude.

[0034] Specifically, the protective plate 302 forms a movable structure through the movable plate 304 and the moving plate 305 , and the movable plate 304 is arranged between the protective plate 302 and the moving plate 305 .

[0035] Through the above technical solution, the protective plate 302 can drive the movable plate 304 to rotate during the movement, and the two movable plates 304 rotate in opposite directions. The rotation of the movable plate 304 can move the movable plate 305, thereby achieving the effect of moving the movable plate 305.

[0036] Specifically, the movable plate 305 forms an elastic structure with the second spring 307 and the sliding rod 306 , and one end of the sliding rod 306 penetrates the inner wall of the second spring 307 for arrangement.

[0037] Through the above technical solution, the movable plate 305 can slide synchronously on the slide rod 306 during the movement, and the second spring 307 can be compressed or extended during the movement. The second spring 307 can limit the movement of the movable plate 305 and further buffer the downward pressure of the protective plate 302.

[0038] Specifically, the protection box 2 forms a snap-fit ​​structure with the mounting block 602 through the mounting groove 601 , and the shape and size of the mounting groove 601 match the shape and size of the mounting block 602 , and the number of the dustproof nets 603 is two.

[0039] Through the above technical solution, dust-proof nets 603 are installed on both sides of the protection box 2 to prevent dust from entering the transformer body 5 in the protection box 2. While preventing dust, air circulation can be achieved to achieve the effect of heat dissipation. The dust-proof net 603 can be extended into the installation groove 601 through the installation block 602 for connection, and can be directly pulled out when disassembling, which is convenient and quick.

[0040] Specifically, the motor 604 forms a lifting structure with the fan 606 through the screw rod 605 , and the external thread of the screw rod 605 matches the internal thread on one side of the fan 606 .

[0041] Through the above technical solution, it is convenient to start the motor 604 to drive the screw 605 to rotate while driving the fan 606 to move up and down. When the fan 606 is started, it can blow air to cool the transformer body 5, and the fan 606 performs an up and down circulation blowing, which further increases the blowing area and improves the heat dissipation effect.

[0042] Working principle: When using the protection device of the electric high-voltage transformer, first, when encountering a falling object from a high altitude falling onto the top of the protection box 2, the falling force of the falling object will first contact the protection plate 302, and the protection plate 302 will move downward. At this time, under the action of the first spring 301 and the damper 303, the downward force can be buffered. At the same time, the protection plate 302 drives the movable plate 304 to rotate, and the two movable plates 304 rotate in opposite directions. The rotation of the movable plate 304 can make the movable plate 305 move, and then the movable plate 305 will slide synchronously on the slide bar 306 during the movement, so that the movable plate 305 can move. The second spring 307 on one side of the plate 305 is compressed, which can further buffer the force of the protective plate 302 moving downward, thereby achieving the effect of protecting the top of the transformer body 5. When the transformer body 5 is dissipated, the starting motor 604 can drive the screw rod 605 to rotate, and the screw rod 605 drives the fan 606 to move up and down. Starting the fan 606 can blow air to cool the transformer body 5, and the dust net 603 can be directly pulled out for installation and disassembly, which is easy to replace. This completes all the work. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for a power high voltage transformer, comprising a base (1), characterized in that: A protection box (2) is installed on the top of the base (1), a protection component (3) is arranged on the top of the protection box (2), and a heat dissipation component (6) is installed inside the protection box (2); The protection component (3) comprises a first spring (301), the top of the first spring (301) is fixedly connected to a protection plate (302), and a damper (303) is installed at the bottom of the protection plate (302), the bottom of the protection plate (302) is rotatably connected to a movable plate (304), and the bottom of the movable plate (304) is hinged to a movable plate (305), the inner wall of the movable plate (305) is slidably connected to a sliding rod (306), and the outer surface of the sliding rod (306) is sleeved with a second spring (307); The heat dissipation component (6) comprises a mounting groove (601), the inner wall of the mounting groove (601) is snap-connected with a mounting block (602), and one side of the mounting block (602) is fixedly connected with a dust screen (603), the inner wall of the protection box (2) is mounted with a motor (604), and the output end of the motor (604) is detachably connected with a screw rod (605) via a coupling, and the outer surface of the screw rod (605) is threadedly connected with a fan (606).

2. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: A mounting mechanism (4) is provided on one side of the protection box (2), and a transformer body (5) is installed on the top of the base (1).

3. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: The protection box (2) forms an elastic structure through a first spring (301) and a protection plate (302), and the first spring (301) is arranged between the protection box (2) and the protection plate (302), and the damper (303) is arranged inside the first spring (301).

4. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: The protective plate (302) forms a movable structure through a movable plate (304) and a moving plate (305), and the movable plate (304) is arranged between the protective plate (302) and the moving plate (305).

5. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: The movable plate (305) forms an elastic structure with the second spring (307) and the sliding rod (306), and one end of the sliding rod (306) penetrates the inner wall of the second spring (307) for arrangement.

6. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: The protection box (2) forms a snap-fit ​​structure with the mounting block (602) through the mounting groove (601), and the shape and size of the mounting groove (601) match the shape and size of the mounting block (602). The number of the dustproof nets (603) is two.

7. The protection device for a power high voltage mutual inductor according to claim 1, characterized in that: The motor (604) forms a lifting structure with the fan (606) through the screw rod (605), and the external thread of the screw rod (605) matches the internal thread on one side of the fan (606).

Images