CN202423013U - Capacitor provided with two series of elements with internal fuses - Google Patents
Capacitor provided with two series of elements with internal fuses Download PDFInfo
- Publication number
- CN202423013U CN202423013U CN2011205624215U CN201120562421U CN202423013U CN 202423013 U CN202423013 U CN 202423013U CN 2011205624215 U CN2011205624215 U CN 2011205624215U CN 201120562421 U CN201120562421 U CN 201120562421U CN 202423013 U CN202423013 U CN 202423013U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- fuse
- aluminium foil
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 41
- 239000005030 aluminium foil Substances 0.000 claims abstract description 23
- 239000004743 Polypropylene Substances 0.000 claims abstract description 7
- -1 polypropylene Polymers 0.000 claims abstract description 7
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 230000015556 catabolic process Effects 0.000 description 4
- 230000009172 bursting Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a capacitor provided with two series of elements with internal fuses. The capacitor comprises a capacitor core which is connected with an external circuit through a fuse, wherein the capacitor core is formed through curling two narrow aluminium foils, polypropylene films and a wide aluminium foil which are sequentially laminated, and the distance between the two narrow aluminium foils is 20 mm. The capacitor provided by the utility model solves the problem that the internal fuse can not be additionally arranged in a low-capacity capacitor, and is a kind of low-capacity capacitor which can safely operate in the power network.
Description
Technical field
The utility model belongs to the capacitor technology field, relates to a kind of two string element band inner fuse capacitors.
Background technology
Low value capacitor (rated voltage 11/ √ 3kV and 12/ √ 3kV, the separate unit capacity is at 50kvar-100kvar) does not install interior fuse additional now, because parallelly connected parts number is few, and fuse failure minimal condition in not reaching.This capacitor (for example BAM12/ √ 3-100-1W model) is if install interior fuse additional by force; Fuse is failure to actuate in so in running; Do not play the effect of insurance, the quick-fried phenomenon of outer fuse crowd possibly occur and out of service, might occur case shell bursting accident yet.
Summary of the invention
The order of the utility model provides a kind of two string element band inner fuse capacitors, can be when low value capacitor be breakdown, and interior fuse plays the effect of fusing insurance.
The technical scheme that the utility model adopted is, utilizes in the two string element bands fuse to form capacitor body as the minimum unit of capacitor, and capacitor body is connected with circuit external through brace.
The characteristic of the utility model also is,
Capacitor body is curled by the narrow aluminium foil that is cascading, polypropylene screen, wide aluminium foil and forms; Narrow aluminium foil is provided with two.
Between two narrow aluminium foils at a distance of 20mm, in order to guarantee electrical distance.
The two string element band inner fuse capacitors of the utility model have solved the problem of fuse in low value capacitor can't install additional, for the safe operation of low value capacitor in electrical network provides novel capacitor.
Description of drawings
Fig. 1 is the structural representation of the utility model two string element band inner fuse capacitors.
Fig. 2 is an inner deployed configuration sketch map in the utility model capacitor.
Among the figure, 1. wide aluminium foil, 2. narrow aluminium foil, 3. polypropylene screen, 4. capacitor body, 5. fuse.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
The structure of the utility model two string element band inner fuse capacitors, as shown in Figure 1, comprise capacitor body 4, be connected with fuse 5 on the capacitor body 4, capacitor body 4 is connected with circuit external through fuse 5.
Internal structure before capacitor body 4 curls in the utility model, as shown in Figure 2, comprise the narrow aluminium foil 2, polypropylene screen 3, the wide aluminium foil 1 that are cascading, wherein, narrow aluminium foil 2 is provided with two, and between two narrow aluminium foils 2 at a distance of 20mm.Capacitor body 4 curls and forms for narrow aluminium foil 2, polypropylene screen 3, wide aluminium foil 1.
The wide aluminium foil 1 of the utility model two string element band inner fuse capacitors is as the target (2 strings are public) of capacitances in series; Two other narrow aluminium foil 2 is respectively as guaranteeing 20mm gas distance between 2 electrodes of connecting and two narrow aluminium foils 2; Polypropylene screen 3 is reeled as common media and is formed.
The utility model two string element band inner fuse capacitors in the running of electrical network, half the breakdown (at first the puncturing half element) of individual capacitors element, promptly breakdown on narrow aluminium foil 2; Calculated and can be got by Ohm's law, the voltage that second half bore will become original 2 times, also will be breakdown very soon; Reached the minimal condition of fuse 5 fusing because of parallelly connected parts number; Interior fuse will fuse in Millisecond, and the element separation of damaging, other intact elements continue operation.
Claims (3)
1. a string element band inner fuse capacitor is characterized in that comprise capacitor body (4), capacitor body (4) is connected with circuit external through fuse (5).
2. two string element band inner fuse capacitors according to claim 1 is characterized in that said capacitor body (4) is curled by the narrow aluminium foil (2) that is cascading, polypropylene screen (3), wide aluminium foil (1) and forms; Said narrow aluminium foil (2) is provided with two.
3. two string element band inner fuse capacitors according to claim 2 is characterized in that, between said two narrow aluminium foils (2) at a distance of 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205624215U CN202423013U (en) | 2011-12-20 | 2011-12-20 | Capacitor provided with two series of elements with internal fuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205624215U CN202423013U (en) | 2011-12-20 | 2011-12-20 | Capacitor provided with two series of elements with internal fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423013U true CN202423013U (en) | 2012-09-05 |
Family
ID=46747749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205624215U Expired - Lifetime CN202423013U (en) | 2011-12-20 | 2011-12-20 | Capacitor provided with two series of elements with internal fuses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176105A (en) * | 2013-03-13 | 2013-06-26 | 绍兴电力局 | Test circuit and method for capacitor internal fuses based on alternating current phase selection |
-
2011
- 2011-12-20 CN CN2011205624215U patent/CN202423013U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176105A (en) * | 2013-03-13 | 2013-06-26 | 绍兴电力局 | Test circuit and method for capacitor internal fuses based on alternating current phase selection |
| CN103176105B (en) * | 2013-03-13 | 2015-04-01 | 绍兴电力局 | Test circuit and method for capacitor internal fuses based on alternating current phase selection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HERONG ELECTRIC CO., LTD. Free format text: FORMER NAME: SHAANXI HERONG ELECTRIC CAPACITOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710200 Shaanxi city of Xi'an Province Economic and Technological Development Zone Jingwei Industrial Park Road No. 9 Patentee after: Herong Electric Co., Ltd. Address before: 710200 Shaanxi city of Xi'an Province Economic and Technological Development Zone Jingwei Industrial Park Road No. 9 Patentee before: Shaanxi Herong Electric Capacitor Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |