CN203232807U - Aluminum electrolytic capacitor with core fixing structure - Google Patents
Aluminum electrolytic capacitor with core fixing structure Download PDFInfo
- Publication number
- CN203232807U CN203232807U CN 201320209836 CN201320209836U CN203232807U CN 203232807 U CN203232807 U CN 203232807U CN 201320209836 CN201320209836 CN 201320209836 CN 201320209836 U CN201320209836 U CN 201320209836U CN 203232807 U CN203232807 U CN 203232807U
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- cover plate
- kernel
- electrolytic capacitor
- aluminum
- core
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Abstract
The utility model discloses an aluminum electrolytic capacitor with a core fixing structure. The aluminum electrolytic capacitor comprises a core, an aluminum casing body, a cover plate and a derivation electrode. The core is formed by wrapping an electrolytic aluminum foil, a guide pin and electrolytic paper into a capacitor core package. A round through hole is arranged at the center of the core. A reinforcement rib is arranged on the surface of the aluminum casing body. A cylindrical pin bar is arranged at the center of the bottom in the aluminum casing body. The outer diameter of the pin bar is matched with the round through hole of the core. The height of the pin bar is no less than the depth of the aluminum casing body. A through hole which is matched with the pin bar is arranged on the cover plate. The pin bar passes through the round through hole and the cover plate to stretch out of the aluminum casing body. The derivation electrode is arranged on the cover plate. According to the utility model, through electrolytic capacitor gel-free filler, the weight of the electrolytic capacitor is reduced, and the core reservation package space of the electrolytic capacitor is increased; the radiating form is changed from outward conduction realized by a gel medium to direct radiating realized by the contact of the core and the aluminum metal casing; and the electrolytic capacitor has good performances of conduction and radiating, and is very convenient and practical.
Description
Technical field
The utility model relates to a kind of electrolytic capacitor, relates in particular to a kind of aluminium electrolytic capacitor with the kernel fixed structure.
Background technology
Aluminium electrolytic capacitor is made up of parts such as kernel, shell, leadout electrode, sealing gasket and cover plates.Winding becomes the capacitor core bag to form to kernel with electrolytic paper by electrolysis aluminium foil, guide pin, and interior nuclear weight is the over half of whole aluminium electrolytic capacitor weight, to improve the withstand voltage and specific volume of electrolytic capacitor.But the electrolytic capacitor of big quality, large volume has fixedly brought bigger difficulty for encapsulation.Existing large-scale aluminum electrolysis capacitor internal structure tight, but adopt gel sets, its advantage is the processing simple cheap, it is narrow and small that shortcoming is that kernel is installed surplus, the air to open valve that more easily rises of working under the high temperature; The bad control of gel-filled amount, and jello has very big physical weight and causes the capacitor body weight to lay particular stress on; Gel is that the high temperature hot melt is filled, and certain danger is arranged; Because jello belongs to modified plastic rubber, its specific heat capacity is big, conductive coefficient is low, cause the kernel heat radiation not good enough.
The utility model content
At the problem that above-mentioned prior art exists, the utility model provides a kind of aluminium electrolytic capacitor with the kernel fixed structure, this electrolytic capacitor gel-free filler, and heat loss through conduction is good, and electric performance stablity is in light weight, and long service life is very convenient and practical.
The technical solution of the utility model is: a kind of aluminium electrolytic capacitor with the kernel fixed structure, comprise kernel, aluminum enclosure, cover plate and leadout electrode, described kernel is by the electrolysis aluminium foil, winding becomes the capacitor core bag to form to guide pin with electrolytic paper, the center of kernel is provided with a round tube hole, described aluminum enclosure surface is provided with reinforcement, aluminum enclosure inner bottom part center is provided with a cylindrical shank, the external diameter of shank and the round tube hole of kernel coupling, the height of shank is not less than the degree of depth of aluminum enclosure, described cover plate is provided with the through hole suitable with shank, and shank runs through round tube hole and cover plate stretches out outside the aluminum enclosure; Leadout electrode is installed on the cover plate.
As preferably, the electrolytic paper winding of described kernel becomes capacitor core bag periphery also to be provided with restraint zone, and the crimping of the upper surface of cover plate and aluminum enclosure port connects.
As preferably, described shank is provided with interior trip bolt, sealing gasket and outer trip bolt, and interior trip bolt is between kernel and cover plate, and sealing gasket and outer trip bolt are positioned at the upper surface of cover plate.
The beneficial effects of the utility model are: the kernel of electrolytic capacitor of the present utility model is fixed by the shank of aluminum enclosure inner bottom part, the gel-free filler, not only alleviated the weight of electrolytic capacitor, and the kernel that has strengthened electrolytic capacitor reserves encapsulated space, its radiating mode by gel media outwards conduction change into kernel contact aluminum metal case and directly dispel the heat.Compare with the electrolytic capacitor that adopts gel sets, electrolytic capacitor heat loss through conduction of the present utility model better, faster, electrical property is more stable, and is in light weight, average life is longer, very convenient and practical relatively.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, kernel; 2, aluminum enclosure; 3, cover plate; 4, interior trip bolt; 5, sealing gasket; 6, outer trip bolt; 11, restraint zone; 21, shank; 31, leadout electrode.
Embodiment
As a kind of execution mode of the present utility model, as shown in Figure 1, a kind of aluminium electrolytic capacitor with the kernel fixed structure, comprise kernel 1, aluminum enclosure 2, cover plate 3 and leadout electrode 31, described kernel 1 is by the electrolysis aluminium foil, winding becomes the capacitor core bag to form to guide pin with electrolytic paper, the center of kernel 1 is provided with a round tube hole, described aluminum enclosure 2 surfaces are provided with reinforcement, aluminum enclosure 2 inner bottom part centers are provided with a cylindrical shank 21, the round tube hole coupling of the external diameter of shank 21 and kernel 1, the height of shank 21 is not less than the degree of depth of aluminum enclosure 2, and described cover plate 3 is provided with the through hole suitable with shank 21, and shank 21 runs through round tube hole and cover plate 3 stretches out outside the aluminum enclosure 2; Leadout electrode 31 is installed on the cover plate 3.
In the present embodiment, as preferably, the electrolytic paper winding of described kernel 1 becomes capacitor core bag periphery also to be provided with restraint zone 11, and the crimping of the upper surface of cover plate 3 and aluminum enclosure 2 ports connects.
In the present embodiment, as preferably, described shank 21 is provided with interior trip bolt 4, sealing gasket 5 and outer trip bolt 6, and interior trip bolt 4 is between kernel 1 and cover plate 3, and sealing gasket 5 and outer trip bolt 6 are positioned at the upper surface of cover plate 3.
Compare with the electrolytic capacitor that adopts gel sets, electrolytic capacitor heat loss through conduction of the present utility model better, faster, electrical property is more stable, and is in light weight, average life is longer, very convenient and practical relatively.
The above only is a kind of embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and obvious mode of texturing etc., all should be included within the protection range of the present utility model.
Claims (3)
1. aluminium electrolytic capacitor with the kernel fixed structure, comprise kernel, aluminum enclosure, cover plate and leadout electrode, it is characterized in that: winding becomes the capacitor core bag to form to described kernel with electrolytic paper by electrolysis aluminium foil, guide pin, the center of kernel is provided with a round tube hole, described aluminum enclosure surface is provided with reinforcement, aluminum enclosure inner bottom part center is provided with a cylindrical shank, the external diameter of shank and the round tube hole of kernel coupling, the height of shank is not less than the degree of depth of aluminum enclosure, described cover plate is provided with the through hole suitable with shank, and shank runs through round tube hole and cover plate stretches out outside the aluminum enclosure; Leadout electrode is installed on the cover plate.
2. the aluminium electrolytic capacitor of band kernel fixed structure according to claim 1, it is characterized in that: the electrolytic paper winding of described kernel becomes capacitor core bag periphery also to be provided with restraint zone, and the crimping of the upper surface of cover plate and aluminum enclosure port connects.
3. the aluminium electrolytic capacitor of band kernel fixed structure according to claim 1, it is characterized in that: described shank is provided with interior trip bolt, sealing gasket and outer trip bolt, interior trip bolt is between kernel and cover plate, and sealing gasket and outer trip bolt are positioned at the upper surface of cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209836 CN203232807U (en) | 2013-04-23 | 2013-04-23 | Aluminum electrolytic capacitor with core fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209836 CN203232807U (en) | 2013-04-23 | 2013-04-23 | Aluminum electrolytic capacitor with core fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232807U true CN203232807U (en) | 2013-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320209836 Expired - Fee Related CN203232807U (en) | 2013-04-23 | 2013-04-23 | Aluminum electrolytic capacitor with core fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558566A (en) * | 2020-12-09 | 2021-03-26 | 安徽诚越电子科技有限公司 | Production control method and device for aluminum electrolytic capacitor |
-
2013
- 2013-04-23 CN CN 201320209836 patent/CN203232807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558566A (en) * | 2020-12-09 | 2021-03-26 | 安徽诚越电子科技有限公司 | Production control method and device for aluminum electrolytic capacitor |
| CN112558566B (en) * | 2020-12-09 | 2021-09-10 | 安徽诚越电子科技有限公司 | Production control method and device for aluminum electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140423 |