CN202736760U

CN202736760U - Power capacitor

Info

Publication number: CN202736760U
Application number: CN 201220443090
Authority: CN
Inventors: 蔡富强; 金玲
Original assignee: ZHEJIANG WEIDEKANG ELECTRIC CO Ltd
Current assignee: ZHEJIANG WEIDEKANG ELECTRIC CO Ltd
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2013-02-13
Anticipated expiration: 2022-08-31

Abstract

The utility model relates to a power capacitor which comprises a shell. A capacitor core set consisting of a plurality of capacitor cores is arranged in the shell. The power capacitor is characterized in that a bracket for installing the capacitor core set is arranged in the shell; insulating gas is filled in the shell; the bracket comprises an upper bracket and a lower bracket; positioning seats are arranged at the corresponding positions on the upper bracket and the lower bracket; and the positioning seats on the upper bracket and the lower bracket are respectively inserted into both ends of the capacitor cores. The technical scheme is adopted; the utility model provides the power capacitor; the capacitor core set can be well fixed by the bracket arranged in the shell; and the filled insulating gas not only can insulate and isolate the capacitor core set from the outside, but also cannot pollute the environment and is difficult to burn.

Description

A kind of power capacitor

Technical field

The utility model relates to a kind of power capacitor.

Background technology

At present, existing power capacitor has generally comprised housing, be provided with in the housing by the molecular capacitor core subgroup of a plurality of capacitor cores, the capacitor core subgroup is coated togather through wrapping paper, be filled with paraffin or fluid in the housing as the filler of capacitor, still, the power capacitor of this structure, because filler has the large defective of swellability to the metalized film of capacitor body, thereby so that lack the useful life of capacitor body; And paraffin and fluid are when overflowing, and both easy contaminated environment was burnt again easily, had certain defective.

Summary of the invention

The purpose of this utility model: in order to overcome the defective of prior art, the utility model provides a kind of power capacitor, it is by being arranged on the support fixed capacitor fuse group well in the housing, the insulating gas that is filled with, can be with capacitor core subgroup and external insulation isolation, do not pollute the environment again, be not easy burning yet.

The technical solution of the utility model: a kind of power capacitor, include housing, be provided with in the described housing by the molecular capacitor core subgroup of a plurality of capacitor cores, it is characterized in that: be provided with in the described housing for the support that the capacitor core subgroup is installed, insulation gas filled in the described housing, described support includes upper bracket, lower carriage, correspondence position is equipped with positioning seat on described upper bracket, the lower carriage, and the positioning seat on described upper bracket, the lower carriage is plugged in respectively the two ends of capacitor body.

Adopt technique scheme, the insulating gas that is filled with in the housing can make the electric property of capacitor stable, can play again the effect of insulation, can also utilize the space between the inner fuse to dispel the heat; Locate capacitor body by the positioning seat on upper bracket, the lower carriage, simple in structure, the location is reliable, therefore, the power capacitor of this structure, it is by being arranged on the support fixed capacitor fuse group well in the housing, the insulating gas that is filled with, capacitor core subgroup and external insulation isolation can not polluted the environment again, be not easy burning yet.

Further setting of the present utility model: described capacitor body component becomes at least two row's capacitor body rows, described upper bracket, the equal correspondence of lower carriage are divided into the Split type supporting stand identical with capacitor body row's row, the first adjacent Split type supporting stand on upper bracket, the lower carriage is extended with the inserted sheet of " U " font to the second Split type supporting stand one side, the corresponding inserted sheet of described the second Split type supporting stand position is provided with the slot of " U " font, inserted sheet is plugged in the slot, the inserted sheet both sides are equipped with the shoulder rank, and the sidewall of slot is conflicted with the shoulder rank.

Adopt above-mentioned further setting, the Split type supporting stand identical with capacitor body row's row is arranged in upper bracket, lower carriage split, when needs increase or reduce the quantity of capacitor body, can directly satisfy the demand by increase Split type supporting stand or minimizing support like this, the scope of application is wide; Interaction between the socket sidewalls of the sidewall of the inserted sheet of " U " font and " U " font, can be so that adjacent Split type supporting stand can not depart to both sides, the sidewall of slot is conflicted with the shoulder rank, be used for limiting the degree of depth that inserted sheet inserts, the Split type supporting stand connected mode of this structure is more convenient, rational in infrastructure.

Of the present utility modelly further arrange again: the setting of aliging with the inside bottom of " U " font inserted sheet of the first Split type supporting stand inside bottom, " U " font slot inside bottom is lower than the height of the second Split type supporting stand inside bottom, and the height between " U " font slot inside bottom and the second Split type supporting stand inside bottom equals the height of the bottom of " U " font inserted sheet.

Adopt above-mentionedly further to arrange again so that it is in the same plane respectively to arrange capacitor body, and then so that between capacitor body end face and the Split type supporting stand gas flow rate even, good heat dissipation effect the local overheating phenomenon can not occur.

Further setting of the present utility model: corresponding each capacitor body position is equipped with " U " font slot on described the second Split type supporting stand, on the first Split type supporting stand also corresponding each capacitor body position be provided with " U " font inserted sheet, be equipped with the gap between adjacent two inserted sheets between adjacent two slots and on the first Split type supporting stand on described the second Split type supporting stand.

Adopt above-mentioned further setting, corresponding each capacitor body position arranges respectively inserted sheet, slot on the first Split type supporting stand, the second Split type supporting stand, so that the location between the adjacent Split type supporting stand is more reliable; Gap between adjacent inserted sheet, the slot can be used for heat radiation, and for the adjacent inserted sheet on the upper bracket, gap between the slot, can also be used to pass for wire.

Again further setting of the present utility model: described positioning seat includes the insertion section that is plugged in the capacitor body, the supporting seat that is used for the support capacitor fuse, and described supporting seat and capacitor body end face are conflicted.

Adopt above-mentioned more further setting, the positioning seat of this structure, because the setting of supporting seat can be so that the end face of capacitor body and upper bracket, lower carriage be provided with the certain gap of generation between the end face of positioning seat, thereby can conveniently place the connection wire between the capacitor body, can dispel the heat well again.

Again further setting of the present utility model: described housing is provided with binding post, binding post is electrically connected with the capacitor core subgroup, also is provided with the pressure safeties that automatically binding post and capacitor core subgroup disconnected for when the housing internal pressure increases in the described housing.

Adopt above-mentionedly further to arrange again, the pressure safeties can guarantee capacitor under pressurized security performance.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model specific embodiment;

Fig. 2 is the internal structure schematic diagram of the utility model specific embodiment;

Fig. 3 is each Split type supporting stand syndeton schematic diagram of lower carriage in the utility model specific embodiment;

Fig. 4 is adjacent the first Split type supporting stand structural representation in the lower carriage in the utility model specific embodiment;

Fig. 5 is adjacent the second Split type supporting stand structural representation in the lower carriage in the utility model specific embodiment.

Embodiment

Shown in Fig. 1-5, a kind of power capacitor, include housing 1, be provided with the capacitor core subgroup 3 that is formed by a plurality of capacitor bodies 2 in the described housing 1, be provided with in the described housing 1 for the support 4 that capacitor core subgroup 3 is installed, support 4 is made for plastics, described housing 1 is interior insulation gas filled, insulating gas adopts nitrogen, described support 4 includes upper bracket 41, lower carriage 42, described upper bracket 41, correspondence position is equipped with positioning seat 5 on the lower carriage 42, described upper bracket 41, positioning seat 5 on the lower carriage 42 is plugged in respectively the two ends of capacitor body 2.

Shown in Fig. 2-5, in the utility model specific embodiment, described capacitor core subgroup 3 is divided into three row's capacitor body rows 31, described upper bracket 41, lower carriage 42 equal correspondences are divided into three Split type supporting stands, upper bracket 41, the first adjacent Split type supporting stand 431 on the lower carriage 42 is extended with the inserted sheet 4311 of " U " font to the second Split type supporting stand 432 1 sides, described the second Split type supporting stand 432 corresponding inserted sheets 4311 positions are provided with the slot 4321 of " U " font, inserted sheet 4311 is plugged in the slot 4321, inserted sheet 4311 both sides are equipped with shoulder rank 4312, and the sidewall of slot 4321 is conflicted with shoulder rank 4312.

Shown in Fig. 2-5, the setting of aliging with the inside bottom 43111 of " U " font inserted sheet 4311 of the first Split type supporting stand 431 inside bottom 4313, " U " font slot 4321 inside bottom 43211 are lower than the height of the second Split type supporting stand 432 inside bottom 4322, and the height between " U " font slot 4321 inside bottom 43211 and the second Split type supporting stand 432 inside bottom 4322 equals the height of the bottom of " U " font inserted sheet 4311.

Shown in Fig. 3-5, corresponding each capacitor body 2 position are equipped with " U " font slot 4321 on described the second Split type supporting stand 432, on the first Split type supporting stand 431 also corresponding each capacitor body 2 position be provided with " U " font inserted sheet 4311, be equipped with gap 6 between adjacent two inserted sheets 4311 between adjacent two slots 4321 and on the first Split type supporting stand 431 on described the second Split type supporting stand 432.

Shown in Fig. 3-5, described positioning seat 5 includes the insertion section 51 that is plugged in the capacitor body 2, the supporting seat 52 that is used for support capacitor fuse 2, and described supporting seat 52 is conflicted with capacitor body 2 end faces.

As shown in Figure 2, described housing 1 is provided with binding post 7, binding post 7 is electrically connected with capacitor core subgroup 3, also is provided with the pressure safeties 8 that automatically binding post 7 and capacitor core subgroup 3 disconnected for when housing 1 internal pressure increases in the described housing 1.

Claims

1. power capacitor, include housing, be provided with in the described housing by the molecular capacitor core subgroup of a plurality of capacitor cores, it is characterized in that: be provided with in the described housing for the support that the capacitor core subgroup is installed, insulation gas filled in the described housing, described support includes upper bracket, lower carriage, and correspondence position is equipped with positioning seat on described upper bracket, the lower carriage, and the positioning seat on described upper bracket, the lower carriage is plugged in respectively the two ends of capacitor body.

2. power capacitor according to claim 1, it is characterized in that: described capacitor body component becomes at least two row's capacitor body rows, described upper bracket, the equal correspondence of lower carriage are divided into the Split type supporting stand identical with capacitor body row's row, the first adjacent Split type supporting stand on upper bracket, the lower carriage is extended with the inserted sheet of " U " font to the second Split type supporting stand one side, the corresponding inserted sheet of described the second Split type supporting stand position is provided with the slot of " U " font, inserted sheet is plugged in the slot, the inserted sheet both sides are equipped with the shoulder rank, and the sidewall of slot is conflicted with the shoulder rank.

3. power capacitor according to claim 2, it is characterized in that: the setting of aliging with the inside bottom of " U " font inserted sheet of the first Split type supporting stand inside bottom, " U " font slot inside bottom is lower than the height of the second Split type supporting stand inside bottom, and the height between " U " font slot inside bottom and the second Split type supporting stand inside bottom equals the height of the bottom of " U " font inserted sheet.

4. according to claim 2 or 3 described power capacitors, it is characterized in that: corresponding each capacitor body position is equipped with " U " font slot on described the second Split type supporting stand, on the first Split type supporting stand also corresponding each capacitor body position be provided with " U " font inserted sheet, be equipped with the gap between adjacent two inserted sheets between adjacent two slots and on the first Split type supporting stand on described the second Split type supporting stand.

5. according to claim 1 and 2 or 3 described power capacitors, it is characterized in that: described positioning seat includes the insertion section that is plugged in the capacitor body, the supporting seat that is used for the support capacitor fuse, described supporting seat and the conflict of capacitor body end face.

6. power capacitor according to claim 4 is characterized in that: described positioning seat includes the insertion section that is plugged in the capacitor body, the supporting seat that is used for the support capacitor fuse, described supporting seat and the conflict of capacitor body end face.

7. power capacitor according to claim 6, it is characterized in that: described housing is provided with binding post, binding post is electrically connected with the capacitor core subgroup, also is provided with the pressure safeties that automatically binding post and capacitor core subgroup disconnected for when the housing internal pressure increases in the described housing.