Capacitor structure resistant to high-voltage breakdown

Abstract

The utility model discloses a high-voltage breakdown resistant capacitor structure, which relates to the field of high-voltage breakdown resistant capacitors and comprises a box body, a capacitor and pins arranged at two ends of the capacitor, the capacitor is arranged on the inner wall of the box body in a sliding manner, and a high-voltage breakdown resistant structure is arranged on the outer side wall of the capacitor; compared with the prior art, the insulating performance of the capacitor is improved, efficient heat insulation and heat dissipation functions are achieved, the capacitor is effectively protected except for the pins, the high-voltage breakdown resistance of the capacitor is greatly enhanced, meanwhile, the structure gives consideration to optimization of heat dissipation performance on the basis of enhancing the high-voltage breakdown resistance, and the service life of the capacitor is prolonged. When the capacitor works, the generated heat can be quickly transferred to the fixing sleeve and is quickly dissipated through the cavity and the heat dissipation holes, so that the stable operation of the capacitor is effectively ensured, and the service life of the capacitor is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage resistant capacitors, and particularly relates to a capacitor structure with high-voltage breakdown resistance. Background Art

[0002] When the existing capacitors are in use, they need to have good high-voltage breakdown resistance. However, the materials with high-voltage breakdown resistance are often relatively thick, which leads to a great influence on the heat dissipation performance of the capacitors. After the capacitors are in a high-temperature state for a long time, the medium is prone to aging and losing its insulation performance, resulting in an increase in leakage current, which will make the stability of the circuit worse and affect the circuit performance.

[0003] Therefore, it is very necessary to propose a capacitor structure with high-voltage breakdown resistance to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a capacitor structure with high-voltage breakdown resistance to solve the problems that the materials with high-voltage breakdown resistance are often relatively thick, which leads to a great influence on the heat dissipation performance of the capacitors. After the capacitors are in a high-temperature state for a long time, the medium is prone to aging and losing its insulation performance, resulting in an increase in leakage current, which will make the stability of the circuit worse and affect the circuit performance.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A capacitor structure with high-voltage breakdown resistance, including a box body, a capacitor, and pins arranged at both ends of the capacitor. The capacitor is slidably arranged on the inner wall of the box body, and a high-voltage breakdown resistance structure is arranged on the outer side wall of the capacitor;

[0006] The high-voltage breakdown resistance structure includes a ceramic sleeve, the ceramic sleeve is fixedly arranged on the outer side wall of the capacitor, a ceramic ring is fixedly arranged on the pin, a fixing sleeve is fixedly arranged on the outer side wall of the ceramic sleeve, and a plurality of equidistant heat dissipation holes are arranged on the outer side wall of the fixing sleeve.

[0007] Preferably, one side of the ceramic ring close to the ceramic sleeve is fixed to the ceramic sleeve, and the ceramic sleeve and the capacitor are bonded by insulating glue.

[0008] Preferably, a cavity is arranged inside the fixing sleeve, and the heat dissipation holes are communicated with the cavity.

[0009] Preferably, a fixing structure for fixing the capacitor is arranged on the inner wall of the box body. The fixing structure includes a placement cotton, a plurality of equidistant placement grooves are arranged on the surface of the placement cotton, the fixing sleeve is slidably connected with the placement grooves, an avoidance groove is arranged at the bottom of the placement cotton, and the pin of the capacitor is in contact with the avoidance groove.

[0010] Preferably, a plurality of shock absorbers are fixedly arranged on the inner wall of the box body at equal intervals, one end of the shock absorber is fixed to the placement plate, and the other end of the shock absorber is fixed to the placement cotton.

[0011] Preferably, a chute is formed on the inner wall of the box body, sliding blocks are fixedly arranged on both sides of the placement cotton, and the placement cotton is slidably connected to the inner wall of the chute through the sliding blocks.

[0012] The technical effects and advantages of the present utility model are as follows:

[0013] 1. The high-voltage breakdown resistance structure provided in the present utility model improves the insulation performance of the capacitor and also realizes efficient heat insulation and heat dissipation functions. This structure effectively protects all parts of the capacitor except the pins, thereby greatly enhancing its high-voltage breakdown resistance. At the same time, on the basis of enhancing the high-voltage breakdown resistance, this structure takes into account the optimization of heat dissipation performance. When the capacitor generates heat during operation, the heat can be quickly transferred to the fixed sleeve and dissipated quickly through the cavity and heat dissipation holes, effectively ensuring the stable operation of the capacitor and extending its service life;

[0014] 2. The fixing structure provided in the present utility model can not only accommodate multiple capacitors at the same time, but also designs independent limits for the pins of each capacitor, effectively protecting the pins from damage and reducing the possible bending of the pins during transportation, thereby ensuring the integrity and stability of the capacitor. When the capacitor encounters bumps during transportation, the shock absorber can quickly absorb and disperse the impact force, effectively reducing the vibration impact on the capacitor and ensuring the safe transportation of the capacitor. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the high-voltage breakdown resistance capacitor structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the high-voltage breakdown resistance structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the capacitor, pin, ceramic sleeve, fixed sleeve and heat dissipation hole of the present utility model;

[0018] Figure 4 It is a schematic diagram of the capacitor, cavity and insulating glue of the present utility model;

[0019] Figure 5 It is a schematic diagram of the box body, placement cotton, placement groove and shock absorber of the present utility model;

[0020] Figure 6 It is the present utility model Figure 5 Enlarged view at A in.

[0021] In the figure: 1. Box body; 2. Capacitor; 3. Pin; 4. High-voltage breakdown resistant structure; 401. Ceramic sleeve; 402. Ceramic ring; 403. Fixed sleeve; 404. Heat dissipation hole; 405. Insulating glue; 406. Cavity; 5. Fixing structure; 501. Placing cotton; 502. Placing groove; 503. Avoidance groove; 504. Shock absorber; 6. Eight hundred. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides a Figure 1 - Figure 6 A high-voltage breakdown resistant capacitor structure as shown, including a box body 1, a capacitor 2, and pins 3 provided at both ends of the capacitor 2. The box body 1 serves as a storage tool for the capacitor 2 during handling or transportation.

[0024] The capacitor 2 is slidably arranged on the inner wall of the box body 1. A high-voltage breakdown resistant structure 4 is arranged on the outer side wall of the capacitor 2, mainly to increase the insulation performance of the capacitor 2 so that it has high voltage resistance while taking into account the heat dissipation function;

[0025] The high-voltage breakdown resistant structure 4 includes a ceramic sleeve 401, the ceramic sleeve 401 is fixedly arranged on the outer side wall of the capacitor 2, a ceramic ring 402 is fixedly arranged on the pin 3, a fixed sleeve 403 is fixedly arranged on the outer side wall of the ceramic sleeve 401, a plurality of equidistant heat dissipation holes 404 are arranged on the outer side wall of the fixed sleeve 403, a cavity 406 is arranged inside the fixed sleeve 403, and the heat dissipation holes 404 are communicated with the cavity 406.

[0026] One side of the ceramic ring 402 close to the ceramic sleeve 401 is fixed to the ceramic sleeve 401. The ceramic sleeve 401 and the capacitor 2 are bonded by insulating glue 405. The insulating glue 405 usually has good heat resistance and corrosion resistance, and can maintain stable performance in high-temperature, humid or corrosive environments, ensuring the long-term reliability of the capacitor 2.

[0027] Working principle: When the capacitor 2 generates heat during operation, this heat will be quickly transferred to the fixing sleeve 403. The heat dissipation holes 404 can not only effectively discharge the heat. When the wind enters the interior of the fixing sleeve 403 from the heat dissipation holes 404, it will first enter the cavity 406 area. Inside the cavity 406, the wind is divided into two parts. One part of the wind directly passes through the heat dissipation holes 404, taking away the heat and dissipating it into the external environment, while the other part of the wind circulates along the cavity 406. The circulating wind not only increases the heat dissipation area and improves the heat dissipation efficiency, but also continuously contacts the fixing sleeve 403 during the flow process, further taking away the heat on the fixing sleeve 403. At the same time, when the wind touches the heat dissipation holes 404, it can also effectively blow away the heat accumulated on the heat dissipation holes 404, ensuring that the heat dissipation holes 404 always remain unobstructed and will not affect the heat dissipation effect due to heat accumulation;

[0028] In addition, the cavity 406 itself also plays a good role in heat dissipation. When the wind circulates inside the cavity 406, heat exchange will occur with the wall surface of the cavity 406, further reducing the temperature of the fixing sleeve 403. This design not only optimizes the heat dissipation effect, but also improves the stability and service life of the capacitor 2.

[0029] The inner wall of the box body 1 is provided with a fixing structure 5 for fixing the capacitor 2, mainly for the stable placement of multiple capacitors 2 and ensuring that its pins 3 are fully protected;

[0030] The fixing structure 5 includes a placement cotton 501. A plurality of equidistant placement grooves 502 are formed on the surface of the placement cotton 501. The fixing sleeve 403 is slidably connected to the placement grooves 502. An avoidance groove 503 is formed at the bottom of the placement cotton 501. The pin 3 of the capacitor 2 contacts the avoidance groove 503.

[0031] A plurality of equidistant shock absorbers 504 are fixedly arranged on the inner wall of the box body 1. One end of the shock absorber 504 is fixed to the placement plate, and the other end of the shock absorber 504 is fixed to the placement cotton 501. A chute is formed on the inner wall of the box body 1. Sliders are fixedly arranged on both sides of the placement cotton 501. The placement cotton 501 is slidably connected to the inner wall of the chute through the sliders. The stability of the placement cotton 501 during movement also greatly improves its sliding smoothness.

[0032] Working principle: Align the pin 3 of the capacitor 2 precisely with the avoidance groove 503 and smoothly place it into the placement groove 502 to ensure the stable placement of the capacitor 2. During the transportation or handling of the box body 1, if it encounters bumps or vibrations, the built-in shock absorbers 504 can effectively absorb and disperse these vibrations, thereby protecting the capacitor 2 from damage.

Claims

1. A capacitor structure resistant to high voltage breakdown, comprising a box body (1), a capacitor (2) and pins (3) arranged at both ends of the capacitor (2), characterized in that: The capacitor (2) is slidably arranged on the inner wall of the box body (1), and the outer wall of the capacitor (2) is provided with a high-voltage breakdown resistant structure (4); The high-voltage breakdown resistant structure (4) comprises a ceramic sleeve (401), the ceramic sleeve (401) being fixedly arranged on the outer wall of the capacitor (2), a ceramic ring (402) being fixedly arranged on the pin (3), a fixed sleeve (403) being fixedly arranged on the outer wall of the ceramic sleeve (401), and a plurality of equidistant heat dissipation holes (404) being provided on the outer wall of the fixed sleeve (403).

2. A capacitor structure with high voltage breakdown resistance according to claim 1, characterized in that: The ceramic ring (402) is fixed to the ceramic sleeve (401) at one side thereof close to the ceramic sleeve (401), and the ceramic sleeve (401) and the capacitor (2) are bonded together by means of insulating glue (405).

3. A capacitor structure with high voltage breakdown resistance according to claim 1, characterized in that: A cavity (406) is provided inside the fixing sleeve (403), and the heat dissipation hole (404) is in communication with the cavity (406).

4. A capacitor structure with high voltage breakdown resistance according to claim 1, characterized in that: The inner wall of the box body (1) is provided with a fixing structure (5) for fixing the capacitor (2), the fixing structure (5) comprising a placement cotton (501), a surface of the placement cotton (501) being provided with a plurality of placement grooves (502) at equal intervals, the fixing sleeve (403) being slidably connected to the placement grooves (502), a bottom of the placement cotton (501) being provided with an avoidance groove (503), and the pin (3) of the capacitor (2) being in contact with the avoidance groove (503).

5. A capacitor structure with high voltage breakdown resistance according to claim 4, characterized in that: The inner wall of the box body (1) is fixedly provided with a plurality of equidistant vibration dampers (504), one end of the vibration damper (504) is fixed to the placement plate, and the other end of the vibration damper (504) is fixed to the placement cotton (501).

6. A capacitor structure capable of withstanding high voltage breakdown according to claim 4, characterized in that: The inner wall of the box body (1) is provided with a slide groove, and sliders are fixedly provided on both sides of the placement cotton (501), and the placement cotton (501) is slidably connected to the inner wall of the slide groove through the sliders.

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