CN205140748U - Self -healing type low -voltage parallel capacitor - Google Patents
Self -healing type low -voltage parallel capacitor Download PDFInfo
- Publication number
- CN205140748U CN205140748U CN201520966858.3U CN201520966858U CN205140748U CN 205140748 U CN205140748 U CN 205140748U CN 201520966858 U CN201520966858 U CN 201520966858U CN 205140748 U CN205140748 U CN 205140748U
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- healing
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Abstract
The utility model discloses a self -healing type low -voltage parallel capacitor, including casing, upper cover, be located the explosion -proof slice of casing, explosion -proof piece just is provided with on first plate and the second plate and connects sheetmetal between them including the first plate and the second plate that link to each other, V type breach has been seted up to the sheetmetal, the casing intussuseption is filled with the microcrystalline wax. An object of the utility model is to provide a self -healing type low -voltage parallel capacitor, its advantage lies in small, light in weight, only is the old product weight's of tradition fourth or fifth, and the loss is low, and active loss is less than 1.2Wkvar, has good self -healing performance, the medium partial breakdown self -healing work of returning to normal rapidly that overvoltage or overcurrent caused, the seepage embeds discharge resistance and mistake pressure protection device, and the security is good, the utility model discloses the sheetmetal can break off fast when breaking down.
Description
Technical field
The utility model relates to capacitor area, more particularly, relates to a kind of Self-healing low-voltage shunt capacitor.
Background technology
BSMJ series Self-healing low-voltage shunt capacitor is applicable in nominal voltage 1000V and following industrial frequency AC electric power system, do to improve power factor (PF), reduce reactive loss, improve the use of quality of voltage, so be widely used in the middle of life, it comprises housing, upper cover, be positioned at the filler of housing, burst disk, fuse and internal circuit, on cover and be provided with splicing ear, burst disk be connected to fuse output and on the splicing ear that covers, burst disk comprises the first connected plate and the Second Board, and the first plate and the Second Board are provided with the sheet metal of connection, when capacitor temperature is higher or voltage is larger, easily break down, filler expanded by heating makes burst disk be squeezed, rupture, now sheet metal can disconnect along with the fracture of burst disk, realize open circuit insulation, thus play a protective role.
But during traditional capacitor failure, sheet metal is difficult to disconnect, not too sensitive, so cannot open circuit, more dangerously cause.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of Self-healing low-voltage shunt capacitor, and when its advantage is that the utility model breaks down, sheet metal can disconnect fast.
For achieving the above object, the utility model provides following technical scheme:
A kind of Self-healing low-voltage shunt capacitor, comprise housing, upper cover, be positioned at the burst disk of housing, described burst disk comprises the first connected plate and the Second Board, and the first plate and the Second Board are provided with the sheet metal of connection, described sheet metal offers v-notch, is filled with microwax in described housing.
The utility model is set to further: the v-notch of described sheet metal communicates with gap.
The utility model is set to further: described sheet metal adopts zinc-plated copper sheet.
The utility model is set to further: the two ends of described sheet metal are riveted on the first plate and the Second Board respectively.
The utility model is set to further: be mounted with fuse in described housing, and described fuse is enclosed with compound highland barley paper.
By adopting technique scheme, the purpose of this utility model is to provide a kind of novel Self-healing low-voltage shunt capacitor, when its advantage is that the utility model breaks down, sheet metal can disconnect fast, on sheet metal, v-notch is arranged so that sheet metal exists sharp-pointed breach, when capacitor failure, enclosure interior filler expanded by heating makes the first plate and the Second Board be squeezed, be shifted, the stressed rapid fracture of v-notch, first plate is separated with the Second Board, in time failure condition is reacted; Sheet metal and the first plate and the Second Board are riveted, and make under normal circumstances, and the connection of sheet metal and the first plate and the Second Board can be more close, is not easy to produce skew because of rocking.
Below in conjunction with Figure of description, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Self-healing low-voltage shunt capacitor embodiment when not filling microwax;
Fig. 2 is the structural representation of burst disk embodiment in the utility model;
The structural representation of embodiment when Fig. 3 is the utility model Self-healing low-voltage shunt capacitor filling microwax.
Reference numeral: 1, housing; 11, upper cover; 2, burst disk; 21, the first plate; 22, the Second Board; 25, fuse; 26, compound highland barley paper; 3, sheet metal; 31, v-notch; 4, microwax.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model Self-healing low-voltage shunt capacitor embodiment is described further.
A kind of Self-healing low-voltage shunt capacitor, comprise housing 1, upper cover 11, be positioned at the burst disk 2 of housing 1, described burst disk 2 comprises the first connected plate 21 and the Second Board 22, and the first plate 21 and the Second Board 22 being provided with the sheet metal 3 of connection, described sheet metal 3 offers v-notch 23.Microwax 4 is filled with in described housing 1.The two ends of described sheet metal 3 are riveted on the first plate 21 and the Second Board 22 respectively.Be mounted with fuse 25 in described housing 1, described fuse 25 is enclosed with compound highland barley paper 26.
In sum, the purpose of this utility model is to provide a kind of novel Self-healing low-voltage shunt capacitor, when its advantage is that the utility model breaks down, sheet metal 3 can disconnect fast, on sheet metal 3, v-notch 31 is arranged so that sheet metal 3 exists sharp-pointed breach, when capacitor failure, housing 1 inside stuffing expanded by heating makes the first plate 21 and the Second Board 22 be squeezed, be shifted, the stressed rapid fracture of v-notch 31, first plate 21 is separated with the Second Board 22, in time failure condition is reacted; Sheet metal 3 and the first plate 21 and the Second Board 22 are riveted, and make under normal circumstances, and the connection of sheet metal 3 and the first plate 21 and the Second Board 22 can be more close, is not easy to produce skew because of rocking.
Microwax 4 is most widely used semisolid filler in capacitor, in product work process, solid-liquid can be there is and transform in microwax 4, why be preferably that microwax crystallization is fine by the reason of microwax, fusing point is higher, and hardness is strong, oleophylic power is strong, have good permeability, tack and toughness, so other fillers of comparing, moisture protection, the insulating properties of microwax are better.
At fuse 25 outer wrapping compound highland barley paper 26, namely between fuse 25 and housing 1, compound highland barley paper 26 is provided with, because compound highland barley paper 26 has good insulating properties, pliability, water-fast, wear-resisting, grease resistance, ageing-resistant, be well block up clearance material, meanwhile also serve certain antihunt action.
It should be noted that, the utility model must be operated by the personnel qualified in installation and maintenance, before operation, the power supply of equipment must be cut off, the rear interval of disconnection next time making time should keep more than at least 3 minutes, before touching Self-healing low-voltage shunt capacitor, an application insulated conductor discharges to its two poles of the earth, should keep the space of at least 50mm between multiple Self-healing low-voltage shunt capacitor.The purpose of this utility model is to provide a kind of Self-healing low-voltage shunt capacitor; its advantage is that volume is little, lightweight; be only 1/4th or 1/5th of traditional old product weight; loss is low, and active loss is less than 1.2W/kvar, has excellent self-healing performance; the medium partial breakdown that overvoltage or overcurrent cause can normally work by self-healing recovery rapidly; non-leakage, built-in discharge resistance and overpressure protection device, fail safe is good.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a Self-healing low-voltage shunt capacitor, comprise housing, upper cover, be positioned at the burst disk of housing, described burst disk comprises the first connected plate and the Second Board, and the first plate and the Second Board are provided with the sheet metal of connection, it is characterized in that: described sheet metal offers v-notch, in described housing, be filled with microwax.
2. Self-healing low-voltage shunt capacitor according to claim 1, is characterized in that: described sheet metal adopts zinc-plated copper sheet.
3. Self-healing low-voltage shunt capacitor according to claim 1 and 2, is characterized in that: the two ends of described sheet metal are riveted on the first plate and the Second Board respectively.
4. Self-healing low-voltage shunt capacitor according to claim 3, is characterized in that: be mounted with fuse in described housing, and described fuse is enclosed with compound highland barley paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966858.3U CN205140748U (en) | 2015-11-28 | 2015-11-28 | Self -healing type low -voltage parallel capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966858.3U CN205140748U (en) | 2015-11-28 | 2015-11-28 | Self -healing type low -voltage parallel capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205140748U true CN205140748U (en) | 2016-04-06 |
Family
ID=55626516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520966858.3U Expired - Fee Related CN205140748U (en) | 2015-11-28 | 2015-11-28 | Self -healing type low -voltage parallel capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205140748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585160A (en) * | 2018-11-28 | 2019-04-05 | 铜陵市新洲电子科技有限责任公司 | A kind of explosion-proof flame-retardant type low voltage parallel capacitor |
| CN110706922A (en) * | 2019-09-28 | 2020-01-17 | 安徽旭峰电容器有限公司 | Circuit break protection device of low-voltage self-healing parallel capacitor |
-
2015
- 2015-11-28 CN CN201520966858.3U patent/CN205140748U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585160A (en) * | 2018-11-28 | 2019-04-05 | 铜陵市新洲电子科技有限责任公司 | A kind of explosion-proof flame-retardant type low voltage parallel capacitor |
| CN110706922A (en) * | 2019-09-28 | 2020-01-17 | 安徽旭峰电容器有限公司 | Circuit break protection device of low-voltage self-healing parallel capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20201128 |