Box-type capacitor

Abstract

The utility model provides a box-type capacitor, which relates to the technical field of capacitors, and is characterized in that a buffer mechanism is arranged at the bottom of a box-type capacitor main body, limiting plates are arranged on the left and right sides of the box-type capacitor main body to improve the stability, and a connecting buckle in the middle of the bottom is rotationally connected with a sliding block in a supporting seat through a connecting rod; the sliding block is in sliding connection with the limiting rod, the outer side of the sliding block is wrapped with the buffer spring, the buffer effect is achieved, the supporting frames on the two sides of the connecting buckle are matched with the positioning rod above the supporting base, the limiting head is arranged at the top of the positioning rod, stability is enhanced, and the telescopic air cylinder, the push rod, the chock plug, the sealing ring and other structures are arranged in the pressure release valve. The left side and the right side of the box-type capacitor body are further provided with rainproof plates which are matched with the limiting plates to further enhance protection, the bottom of the insulation impregnant heat dissipation mechanism is fixedly connected with the mounting plate through the supporting rods, stability of the heat dissipation mechanism is ensured, and the box-type capacitor has the advantages of being high in stability, good in protection performance, capable of effectively releasing pressure and dissipating heat and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of capacitor, especially to a box type capacitor. BACKGROUND

[0002] In the power system, a set of large-capacity capacitor compensation device is put into the substation, which will overcompensate, and if the capacitor compensation device is not put in, it will be undercompensated too much. Therefore, it is very important to implement precise compensation. The electricity consumption in remote rural areas is small and scattered, and the maintenance and management are not convenient. A small-capacity capacitor compensation device with compact structure, high reliability and low cost has a wide market demand in rural power capacitor compensation. Substances will expand and contract with temperature changes. To improve the electrical performance of the capacitor, the capacitor is evacuated to high vacuum, and then filled with impregnant. The volume of the impregnant will increase and decrease with the increase and decrease of temperature. This type of capacitor uses an expander made of thin steel plate to compensate for the volume of the impregnant inside the capacitor. When the temperature rises, the volume of the impregnant increases, and the volume of the expander increases. When the temperature drops, the volume of the impregnant decreases, and the volume of the expander decreases. In this way, the volume of the impregnant is compensated for the change in temperature.

[0003] The existing technology with publication number CN220106268U discloses a box type high-voltage power capacitor, which comprises a shell, a support seat and an insulation impregnant heat dissipation mechanism. When the temperature inside the shell is too high, the insulation impregnant stored inside it expands due to heat, causing the liquid level to rise and flow into its interior through the upper port of the cooling pipe and pass through the cooling water stored in the heat dissipation shell. The cooling water exchanges heat with the insulation impregnant entering the cooling pipe and cools and cools the insulation impregnant. The insulation impregnant cooled by heat exchange flows into the interior of the shell from the bottom port of the cooling pipe under its own gravity, causing the interior temperature of the shell to drop in time. Compared with the prior art, the cooling effect and cooling speed are improved. When the temperature inside the shell decreases, the liquid level of the insulation impregnant decreases and returns to the initial position. The insulation impregnant will not enter the insulation impregnant heat dissipation mechanism from the top port of the cooling pipe to dissipate heat, and the insulation impregnant heat dissipation mechanism will stop working.

[0004] However, the existing capacitor still has some shortcomings, such as the shell being vertically fixed above the support seat by the damping mechanism. The damping support plate, damping sliding block and damping spring in the damping mechanism provide cushioning and damping, but the damping mechanism lacks a limiting device, which causes the capacitor main body to tilt easily when the mechanism is cushioning, affecting the normal operation of the internal device. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a box type capacitor to solve the problem that the damping mechanism of the existing capacitor lacks a limiting device, which causes the capacitor main body to tilt easily when the mechanism is cushioning, affecting the normal operation of the internal device.

[0006] The utility model provides a kind of box capacitor, it is characterized in that, including box capacitor main part:

[0007] The box capacitor main part top position is provided with bush, the right side position of the box capacitor main part is provided with insulating impregnant heat dissipation mechanism, the insulating impregnant heat dissipation mechanism is connected and fixed with box capacitor main part by inside connecting portion, the box capacitor main part bottom position is provided with support seat, the support seat left and right side position is respectively provided with mounting plate;

[0008] The above-mentioned kind of box capacitor, the support seat left and right side position is respectively provided with limit plate, the box capacitor main part bottom position is provided with buffer mechanism, the box capacitor main part top middle position is provided with pressure relief valve.

[0009] In one embodiment, the box capacitor main part bottom middle position is provided with connecting buckle, the support seat inside position is provided with sliding block, the sliding block is rotationally connected with connecting buckle by connecting rod.

[0010] In one embodiment, the sliding block inside position is provided with limit rod, the limit rod is wrapped with buffer spring outside, the sliding block is slidably connected with limit rod.

[0011] In one embodiment, the connecting buckle left and right sides are provided with respectively provided with support frame, the support frame inside middle position is provided with sliding groove, the support seat upper position is provided with positioning rod, the positioning rod corresponds with sliding groove, the positioning rod top position is provided with limit head, the positioning rod is slidably connected with support frame.

[0012] In one embodiment, the pressure relief valve inside upper position is provided with telescopic air cylinder, the pressure relief valve bottom position is provided with air inlet hole, the air inlet hole upper position is provided with sliding cavity.

[0013] In one embodiment, the telescopic air cylinder bottom position is provided with push rod, the push rod end position is provided with plug, the plug rear side position is provided with sealing ring.

[0014] In one embodiment, the sliding cavity side position is provided with air guide groove in array, the pressure relief valve top position is provided with exhaust hole in annular array.

[0015] In one embodiment, the box capacitor main part left and right side position is respectively provided with rainproof board, the rainproof board corresponds with inside limit plate.

[0016] In one of the embodiments, the insulation impregnant heat dissipation mechanism is provided with a support rod at the bottom position, and the support rod is fixedly connected with the bottom mounting plate.

[0017] The utility model discloses still provide a kind of box capacitor, and the box capacitor includes one of the box capacitor in the above embodiment, and the structure of box capacitor can refer to the description in the above embodiment, not repeated here again.The box capacitor provided in the utility model embodiment includes one of the box capacitor in the above embodiment, so the box capacitor provided in the utility model has the all beneficial effects of one of the box capacitor in the above embodiment:

[0018] By the setting of limiting plate, connecting buckle, sliding block, limiting rod, buffer spring, support frame, sliding slot, positioning rod and limiting head, the limiting plate on the left and right sides of support base can limit the box capacitor main body, prevent it from large displacement during installation and use, improve the stability of equipment, and the buffer mechanism at the bottom of box capacitor main body can effectively reduce the damage of external force impact on capacitor internal elements, wherein the combination design of connecting buckle, sliding block, connecting rod, limiting rod and buffer spring makes the sliding block slide on limiting rod when subjected to external force, buffer spring plays a buffering role, protects capacitor internal structure, the support frame on the left and right sides of connecting buckle cooperates with the positioning rod above support base, through the design of sliding slot and limiting head, further enhance the stability of capacitor on support base, and also participate in buffering effect to some extent, when external force acts, the sliding of positioning rod in support frame can play a certain buffering effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of the utility model pressure relief valve;

[0021] Figure 3 It is the structural schematic diagram of the utility model buffer mechanism;

[0022] Figure 4 It is the structural schematic diagram of the utility model support rod.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, box capacitor main body; 2, mounting plate; 3, support seat; 4, insulating impregnant heat dissipation mechanism; 5, connecting part; 6, sleeve; 7, pressure relief valve; 8, exhaust hole; 9, telescopic air cylinder; 10, push rod; 11, air guide groove; 12, plug; 13, air inlet hole; 14, sealing ring; 15, sliding cavity; 16, support frame; 17, positioning rod; 18, sliding groove; 19, limit head; 20, connecting buckle; 21, sliding block; 22, limit rod; 23, buffer spring; 24, support rod; 25, rainproof plate; 26, limit plate. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, clear and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the specific details described below are only part of the embodiments of the present application, and the present application can be implemented in many other embodiments different from those described herein. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0028] Please refer to Figure 1 and Figure 3The utility model provides a kind of box capacitor, including support seat 3 left and right two side positions respectively set up limiting plate 26, box capacitor main body 1 bottom position is provided with buffer mechanism, box capacitor main body 1 top middle position is provided with pressure relief valve 7, box capacitor main body 1 bottom middle position is provided with connecting buckle 20, support seat 3 inside position is provided with sliding block 21, sliding block 21 with connecting buckle 20 are connected by connecting rod rotation, sliding block 21 inside position is provided with limiting rod 22, limiting rod 22 outside is wrapped with buffer spring 23, sliding block 21 and limiting rod 22 slidingly connect, connecting buckle 20 left and right sides are provided with respectively and are provided with support frame 16, support frame 16 inside middle position is provided with sliding slot 18, support seat 3 upper position is provided with positioning rod 17, positioning rod 17 corresponds with sliding slot 18, positioning rod 17 top position is provided with limiting head 19, positioning rod 17 and support frame 16 slidingly connect.

[0029] Preferably, the limiting plate 26 on the left and right sides of the support seat can limit the box capacitor main body 1, preventing it from moving significantly during installation and use, improving the stability of the device. The buffer mechanism at the bottom of the box capacitor main body 1 can effectively reduce the damage to the internal components of the capacitor caused by external force impact. The combination of connecting buckle 20, sliding block 21, connecting rod, limiting rod 22, and buffer spring 23 allows the sliding block 21 to slide on the limiting rod 22 when subjected to external force, with the buffer spring 23 acting as a buffer to protect the internal structure of the capacitor. The support frame 16 on the left and right sides of the connecting buckle 20 cooperates with the positioning rod 17 above the support seat 3, further enhancing the stability of the capacitor on the support seat 3 through the design of sliding slot 18 and limiting head 19. At the same time, it also participates in the buffering effect to a certain extent. When external force acts, the sliding of the positioning rod 17 in the support frame 16 can have a certain buffering effect.

[0030] Please refer to Figures 1-2 The utility model provides a kind of box capacitor, pressure relief valve 7 inside upper position is provided with telescopic cylinder 9, pressure relief valve 7 bottom position is provided with air inlet hole 13, air inlet hole 13 upper position is provided with sliding cavity 15, telescopic cylinder 9 bottom position is provided with push rod 10, push rod 10 end position is provided with plug 12, plug 12 rear side position is provided with sealing ring 14, sliding cavity 15 side position is provided with air guide groove 11, pressure relief valve 7 top position is provided with exhaust hole 8 in annular array.

[0031] Preferably, the telescopic cylinder 9 arranged inside the pressure relief valve 7 can accurately control the movement of the push rod 10, and ensure that the push rod 10 can quickly respond when pressure relief is needed, and when the internal pressure of the capacitor reaches a certain value, the telescopic cylinder 9 can quickly push the push rod 10 to make the plug 12 leave the air inlet hole 13, so as to realize rapid pressure relief, the slide cavity 15 above the air inlet hole 13 provides a channel for gas flow, so that the gas can smoothly enter the pressure relief valve 7 from the inside of the capacitor, and the sealing ring 14 at the rear side of the plug 12 can ensure the sealing of the pressure relief valve 7 under normal circumstances, prevent gas leakage, and ensure the stable operation of the capacitor under normal working pressure, the air guide grooves 11 arranged on the side of the slide cavity 15 can make the gas uniformly dispersed into the pressure relief valve 7, avoid local high pressure, and improve the efficiency and stability of pressure relief, and the exhaust holes 8 arranged in an annular array at the top of the pressure relief valve 7 can quickly exhaust the gas after pressure relief, reduce the internal pressure of the capacitor, and ensure the safety of the equipment.

[0032] Please refer to Figures 1-4 The utility model provides a box type capacitor, box type capacitor main part 1 left and right sides position department respectively be provided with rainproof board 25, rainproof board 25 with inside limit stop 26 correspond, insulating impregnating agent heat abstractor 4 bottom position department is provided with support rod 24, support rod 24 with bottom mounting plate 2 fixed connection.

[0033] Optionally, the rainproof boards 25 on the left and right sides of the box type capacitor main body 1 can effectively prevent rainwater from directly falling on the capacitor, avoid damaging the internal components due to rainwater intrusion, and improve the reliability of the equipment in outdoor use. Rainproof board 25 corresponds with inside limit stop 26, which can not only prevent rain, but also cooperate with limit stop 26 to further enhance the limiting effect on box type capacitor main body 1. The support rod 24 at the bottom of the insulating impregnating agent heat abstractor 4 is fixedly connected with the bottom mounting plate 2, providing stable support for the heat abstractor and ensuring that the heat abstractor does not shake or displace during operation.

[0034] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present application.

[0035] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications, substitutions and improvements can be made, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the claims.

Claims

1. A box capacitor, characterized by, The application relates to a box-type capacitor body (1), which is provided with a sleeve (6) at the top position, an insulating impregnant heat dissipation mechanism (4) at the right side position, a support seat (3) at the bottom position, and mounting plates (2) at the left and right side positions of the support seat (3). Wherein, the support seat (3) is provided with limiting plates (26) at the left and right side positions, the box-type capacitor body (1) is provided with a buffer mechanism at the bottom position, and the box-type capacitor body (1) is provided with a pressure relief valve (7) at the middle position of the top.

2. A box capacitor according to claim 1, wherein The box-type capacitor body (1) is provided with a connecting buckle (20) at the middle position of the bottom, the support seat (3) is provided with a sliding block (21) at the inner position, and the sliding block (21) is rotationally connected with the connecting buckle (20) through a connecting rod.

3. A box capacitor according to claim 2, wherein The sliding block (21) is provided with a limiting rod (22) at the inner position, the limiting rod (22) is wrapped with a buffer spring (23) at the outer side, and the sliding block (21) is slidingly connected with the limiting rod (22).

4. A box capacitor according to claim 3, wherein The connecting buckle (20) is provided with supporting frames (16) at the left and right sides, the supporting frames (16) are provided with sliding grooves (18) at the inner middle positions, the support seat (3) is provided with a positioning rod (17) at the upper position, the positioning rod (17) corresponds to the sliding grooves (18), the positioning rod (17) is provided with a limiting head (19) at the top position, and the positioning rod (17) is slidingly connected with the supporting frames (16).

5. A box capacitor according to claim 1, wherein The pressure relief valve (7) is provided with a telescopic air cylinder (9) at the inner upper position, the pressure relief valve (7) is provided with an air inlet hole (13) at the bottom position, and the air inlet hole (13) is provided with a sliding cavity (15) at the upper position.

6. A box capacitor according to claim 5, wherein The telescopic air cylinder (9) is provided with a push rod (10) at the bottom position, the push rod (10) is provided with a plug head (12) at the tail end position, and the plug head (12) is provided with a sealing ring (14) at the rear side position.

7. A box capacitor according to claim 6, wherein The sliding cavity (15) is provided with air guide grooves (11) at the side positions, and the pressure relief valve (7) is provided with exhaust holes (8) at the top position in an annular array.

8. A box capacitor as claimed in claim 1, wherein The box-type capacitor body (1) is provided with rainproof plates (25) at the left and right side positions, and the rainproof plates (25) correspond to the inner limiting plates (26).

9. A box capacitor as defined in claim 1, wherein The insulating impregnant heat dissipation mechanism (4) is provided with a supporting rod (24) at the bottom position, and the supporting rod (24) is fixedly connected with the bottom mounting plate (2).

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