CN219085815U

CN219085815U - Oil immersed DC filter capacitor

Info

Publication number: CN219085815U
Application number: CN202223321829.0U
Authority: CN
Inventors: 陶煦; 张萍; 左亚茹; 孔梦云; 干健; 张海燕; 钱丽
Original assignee: WANJIANG CENTER FOR DEVELOPMENT OF EMERGING INDUSTRIAL TECHNOLOGY
Current assignee: WANJIANG CENTER FOR DEVELOPMENT OF EMERGING INDUSTRIAL TECHNOLOGY
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-26
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses an oil-immersed direct-current filter capacitor, which comprises a shell and a capacitor body, wherein mounting seats are welded at the positions, close to the edges, of the two sides of the capacitor body, radiating grooves are formed in the two sides of the shell, a silica gel gasket is arranged at the joint of the capacitor body and the shell, and a buffer structure is arranged below the capacitor body. According to the utility model, the shell is processed by CNC, so that the shell is ensured to seal the capacitor body; secondly, the silica gel gaskets are used at all the joints, so that the tightness of the joints can be ensured; and offer the radiating groove at the shell surface, guarantee that the inside heat of shell can in time dispel, extension silica gel gasket's life to extension complete machine's life, secondly, can effectively cushion the vibration that the condenser body during operation produced, prevent to cause the damage to the condenser, simultaneously, through two sets of acoustic celotex boards that set up, can suck away the sound that produces, played the effect of giving sound insulation, making an uproar.

Description

Oil immersed DC filter capacitor

Technical Field

The utility model relates to the technical field of capacitors, in particular to an oil-immersed direct current filter capacitor.

Background

The oil-immersed direct current filter capacitor has the characteristics of small loss and high reliability. The capacitor core is formed by rolling a polypropylene film and an aluminum foil electrode, and an insulating impregnant of the capacitor is a hydrocarbon compound which has excellent electrical property and can be biodegraded; the case shell adopts a high-quality steel plate with the surface treated; the porcelain insulator and the wiring terminal which are selected have excellent quality and excellent reliability.

In the prior art, the oil-immersed direct current filter capacitor has the defects that the sealing performance is poor, the oil-immersed direct current filter capacitor has common problems, oil leakage can lead the appearance of the capacitor to be stained and easy to be wetted, and once exposed fire or spark is encountered, the fire disaster is extremely easy to happen; in addition, excessive oil leakage can lead to the heat dispersion of the capacitor to be reduced, the voltage withstand capability to be reduced, and even the normal use of the capacitor can be influenced.

Disclosure of Invention

The utility model aims to provide an oil-immersed direct current filter capacitor, which is used for solving the problems that the oil-immersed direct current filter capacitor mainly has the following defects in the prior art, and the poor tightness is the common problem of the oil-immersed direct current filter capacitor, so that the appearance of the capacitor is stained and is easy to wet due to oil leakage, and the capacitor is extremely easy to generate fire once exposed fire or spark is encountered; in addition, excessive oil leakage can lead to the problem that the heat dissipation performance of the capacitor is reduced, the voltage withstand capability is reduced, and even the normal use of the capacitor is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an oily formula direct current filter capacitor, includes shell and condenser body, the both sides of condenser body are close to the equal welding of border position and have installed a seat, the radiating groove has all been seted up to the both sides of shell, the junction of condenser body and shell is provided with the silica gel gasket, the below of condenser body is provided with buffer structure.

Preferably, the buffer structure comprises a concave base, buffer blocks are fixedly installed at the positions, close to the edges, of the two sides of the upper end of the concave base, a placing groove is formed in one side of each buffer block, a sound insulation plate is arranged on one side of each buffer block, and buffer springs are arranged at the positions, close to the upper edge and the lower edge, of one side of each sound insulation plate.

Preferably, one side of the capacitor body is arranged in the shell, and the heat dissipation grooves of a plurality of groups are uniformly distributed on two sides of the shell.

Preferably, the middle position inside the placing groove is fixedly provided with a blocking block, and a plurality of groups of buffer springs are symmetrically arranged inside the placing groove relative to the blocking block.

Preferably, one sides of the buffer springs are fixed with one side of the sound insulation plate, and the other sides of the buffer springs are fixed with the inner side wall of the buffer block.

Preferably, one side of the sound insulation plate is located in the placing groove, and one sides of the two groups of sound insulation plates are respectively fixed with two sides of the capacitor body.

Preferably, the capacitor body is located in the middle of the two groups of buffer blocks.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, the shell is processed by CNC, so that the shell is ensured to seal the capacitor body; secondly, the silica gel gaskets are used at all the joints, so that the tightness of the joints can be ensured; and set up the heat dissipation groove on the shell surface, guarantee that the inside heat of shell can in time dispel, extension silica gel gasket's life to the life of extension complete machine.

2. According to the utility model, the buffer structure is arranged, when the capacitor body vibrates during operation, the capacitor body drives the two groups of sound insulation plates to move, and the sound insulation plates impact the groups of buffer springs, so that the groups of buffer springs shrink in the placing grooves, vibration generated during operation of the capacitor body can be effectively buffered, damage to the capacitor is prevented, and meanwhile, generated sound can be sucked away through the two groups of sound insulation plates, and effects of sound insulation and noise reduction are achieved.

Drawings

Fig. 1 is a perspective view of an oil-immersed dc filter capacitor of the present utility model;

fig. 2 is a schematic diagram of a housing structure of an oil-immersed dc filter capacitor according to the present utility model;

fig. 3 is an exploded view of a buffer structure of an oil-immersed dc filter capacitor according to the present utility model;

fig. 4 is a schematic diagram of a rear side structure of an oil-immersed dc filter capacitor according to the present utility model.

In the figure:

1. a housing; 11. a mounting base; 12. a heat sink; 13. a capacitor body; 14. a silica gel pad; 2. a buffer structure; 21. a concave base; 22. a buffer block; 23. a placement groove; 24. a barrier block; 25. a sound insulation board; 26. and a buffer spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4: the utility model provides an oil-immersed direct current filter capacitor, includes shell 1 and condenser body 13, and the both sides of condenser body 13 are close to the edge position and all have welded mount pad 11, and radiating groove 12 has all been seted up to the both sides of shell 1, and the junction of condenser body 13 and shell 1 is provided with silica gel gasket 14, and the below of condenser body 13 is provided with buffer structure 2, and one side of condenser body 13 sets up in the inside of shell 1, and a plurality of groups of radiating groove 12 evenly distributed are in the both sides of shell 1.

The shell 1 is processed by CNC, so that the shell 1 is sealed to the capacitor body 13; secondly, by arranging the silica gel gasket 14 and using the silica gel gasket 14 at each joint, the tightness of the joints can be ensured; through seting up radiating groove 12 on shell 1 surface, guarantee that shell 1 inside heat can in time dispel, extension silica gel gasket 14's life to extension complete machine's life, wherein, mount pad 11's setting, the convenience is assembled with other equipment, is convenient for play supporting effect to capacitor body 13, makes capacitor body 13 can normal operating.

As shown in fig. 3, the buffer structure 2 includes a concave base 21, the upper end of the concave base 21 is close to two side edge positions and fixedly installed with a buffer block 22, a placement groove 23 is formed on one side of the buffer block 22, a sound insulation plate 25 is arranged on one side of the buffer block 22, buffer springs 26 are respectively arranged on one side of the sound insulation plate 25 close to the upper and lower edge positions, a baffle block 24 is fixedly installed at the middle position of the placement groove 23, a plurality of groups of buffer springs 26 are symmetrically arranged in the placement groove 23 with respect to the baffle block 24, one side of each group of buffer springs 26 is fixed with one side of the sound insulation plate 25, the other side of each group of buffer springs 26 is fixed with the inner side wall of the buffer block 22, one side of the sound insulation plate 25 is positioned in the placement groove 23, one sides of the two groups of the sound insulation plates 25 are respectively fixed with two sides of the capacitor body 13, and the capacitor body 13 is positioned in the middle of the two groups of the buffer blocks 22.

The effect that it reached is, through setting up buffer structure 2, capacitor body 13 when the operation produces vibration, and capacitor body 13 can drive two sets of acoustic celotex boards 25 and remove, and acoustic celotex board 25 assaults a plurality of group buffer spring 26 for a plurality of group buffer spring 26 is at the inside shrink of standing groove 23, can effectively cushion the vibration that capacitor body 13 during operation produced, prevents to cause the damage to the condenser, simultaneously, through two sets of acoustic celotex boards 25 of setting up, can suck the sound that produces away, has played the effect of giving sound insulation, making an uproar.

The working principle of the utility model is as follows: when using, firstly, shell 1 is through adopting CNC processing, guarantee the sealing of shell 1 to capacitor body 13, and through setting up silica gel gasket 14, and in each junction, the leakproofness of junction has all been used to silica gel gasket 14, then, through seting up heat dissipation groove 12 at shell 1 surface, guarantee that shell 1 inside heat can in time dispel, the life of extension silica gel gasket 14, thereby the life of extension complete machine, finally, can produce vibrations in this capacitor body 13 operation, and under buffer structure 2's effect, can play the cushioning effect, capacitor body 13 when the operation produces vibrations, capacitor body 13 can drive two sets of acoustic celotex boards 25 and remove, and acoustic celotex board 25 assaults a plurality of sets of buffer springs 26, make the inside shrink of a plurality of buffer springs 26 at standing groove 23, can effectively cushion the vibration that capacitor body 13 during operation produced, prevent to cause the damage to the condenser, simultaneously, through two sets of acoustic celotex boards 25 that set up, can suck the sound that produces, the effect of making an uproar has played.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The oil-immersed direct current filter capacitor comprises a shell (1) and a capacitor body (13), and is characterized in that: both sides of the capacitor body (13) are close to edge positions and are welded with mounting seats (11), heat dissipation grooves (12) are formed in both sides of the shell (1), a silica gel gasket (14) is arranged at the joint of the capacitor body (13) and the shell (1), and a buffer structure (2) is arranged below the capacitor body (13).

2. The oil-immersed dc filter capacitor of claim 1, wherein: the buffer structure (2) comprises a concave base (21), buffer blocks (22) are fixedly installed at the positions, close to the edges, of the two sides of the upper end of the concave base (21), a placing groove (23) is formed in one side of each buffer block (22), a sound insulation plate (25) is arranged on one side of each buffer block (22), and buffer springs (26) are arranged at the positions, close to the upper edge and the lower edge, of one side of each sound insulation plate (25).

3. The oil-immersed dc filter capacitor of claim 1, wherein: one side of the capacitor body (13) is arranged in the shell (1), and a plurality of groups of heat dissipation grooves (12) are uniformly distributed on two sides of the shell (1).

4. The oil-immersed dc filter capacitor of claim 2, wherein: and a baffle block (24) is fixedly arranged at the middle position inside the placing groove (23), and a plurality of groups of buffer springs (26) are symmetrically arranged inside the placing groove (23) relative to the baffle block (24).

5. The oil-immersed dc filter capacitor of claim 4, wherein: one sides of the buffer springs (26) are fixed with one side of the sound insulation plate (25), and the other sides of the buffer springs (26) are fixed with the inner side wall of the buffer block (22).

6. The oil-immersed dc filter capacitor of claim 2, wherein: one side of each sound insulation plate (25) is positioned in the placing groove (23), and one sides of the two groups of sound insulation plates (25) are respectively fixed with two sides of the capacitor body (13).

7. The oil-immersed dc filter capacitor of claim 2, wherein: the capacitor body (13) is positioned in the middle of the two groups of buffer blocks (22).