CN102737846A

CN102737846A - Core cladding fixing pillar for internal side of capacitor cover board

Info

Publication number: CN102737846A
Application number: CN2011100876093A
Authority: CN
Inventors: 周旺龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2012-10-17
Also published as: WO2012136074A1

Abstract

The invention discloses a core cladding fixing pillar for a large-scale aluminum electrolytic capacitor in which a core cladding is located at the internal side of a cover board at the open end of an aluminum case. A cone-shaped fixing pillar is plugged between a core cladding at an internal side of a sealed cover board and the aluminum case. Compared with a central pillar, the fixing pillar performs leveraging effect on strength of the aluminum case and can bind up the core cladding winding and prevents the core cladding from loosing, so fixation strength is high and dependability a vibration condition is good, especially when the pillar is transversely-mounted.

Description

A kind of inboard core bag fixed leg of capacitor cover plate that is used for

Technical field:

The present invention relates to the large-scale aluminum electrolysis capacitor inner core and wrap in aluminum hull openend cover plate inboard fixing means and fixed structure.

Background technology:

The blank cover 2 that large-scale aluminum electrolysis capacitor is curled the core bag 4 that constitutes, outside cylindrical shape aluminum hull 1 and had a both positive and negative polarity binding post 3 by inner both positive and negative polarity aluminium foil and electrolytic paper is formed.Curling, the both positive and negative polarity aluminium foil that constitutes core bag 4 is connected with blank cover 2 inboard corresponding both positive and negative polarity binding post 3 usefulness aluminium leads 5, conducting.

For making core bag 4 in the aluminum hull 1 of sealing, obtain the fixing dual mode that adopts usually.

Mode 1: traditional fixed form is a perfusion fixing glue 6 between core bag 4 and aluminium shell 1, and core bag 4 can not slided in aluminum hull 1.As shown in Figure 1.So adopt this kind mode because the big capacitor of lifting surface area has anti-vibration performance preferably.

Capacitor work SMIS bag 4 can generate heat; Make core bag 4 interior heats distribute the reduction temperature rise as early as possible; Can improve capacitor ripple current capacity and life-span; Usually adopt core bag 4 one side negative pole aluminium foils to extend 9 knockout bags, 4 outsides and also directly contact with aluminum hull 1 inside bottom, so can improve the heat dispersion of capacitor greatly, this kind negative pole extends 9 radiator structures must adopt following fixed form.

Mode 2: protrusion tapered pole 7 is arranged in blank cover 2 inboards; Have one can insert the fixed lever 8 in core bag 4 volume core holes in aluminium shell 1 inside bottom central authorities corresponding tapered pole 7 positions; Utilize tapered pole 7 and fixed leg 8 to insert respectively in the volume core hole of core bag both sides about in the of 4, and core bag 4 can not slided in aluminum hull 1 with cover plate 2 clampings.As shown in Figure 2.This fixed form is because lifting surface area is little, so constant intensity is relatively poor, particularly when capacitor is laterally placed or be in the vibration environment, situations such as the core bag is loose, electrolyte oozes out can occur, and can cause extreme situations such as capacitor short-circuit, blast when serious.

Summary of the invention:

The present invention provides a kind of electric capacity inner core bag 4 at inboard fixing means and the fixed structure of aluminum hull 1 openend cover plate 2, in order to improve the particularly dependability under the vibration environment of capacitor core bag 4 constant intensities.

Concrete technical scheme of the present invention is: there is taper fixed leg 7 position between blank cover 2 inboard corresponding core bags 4 and aluminum hull 1.When capacitor is installed; Guarantee core bag 4 axle center and aluminum hull 1 axis parallel; Aluminium shell 1 inside bottom fixed leg 8 inserts in the volume core hole of core bag 4 downsides; Insert chucking between core bag 4 and the aluminum hull 1 with blank cover 2 inboard taper fixed legs 7, core bag 4 can not slided in aluminum hull 1, accomplish the capacitor fixed installation with cover plate 2 clampings.

Taper fixed leg 7 width of position are to insert between aluminum hull 1 and the core bag 4 space and can tighten to appropriately between blank cover 2 inboard corresponding core bags 4 and the aluminum hull 1.

The taper fixed leg 7 of position is positioned on the cover plate inner side edge between blank cover 2 inboard corresponding core bags 4 and the aluminum hull 1; It can be 1,2 or a plurality of; Can being positioned at a side, that core bag 4 opposite sides are contacted with aluminum hull 1 is fixing, makes core bag 4 fixing between two parties around also can being positioned at.

The taper fixed leg 7 of position can be circle, rhombus or other profiles between blank cover 2 inboard corresponding core bags 4 and the aluminum hull 1.

Because blank cover 2 inner side edge upper conical fixed legs 7 can be borrowed power aluminum hull 1 intensity, fixedly lifting surface area is big to compare newel, can also fetter core bag 4 windings and prevent that core bag 4 is loose, so constant intensity is high, and good reliability under the particularly vibrations condition.

Specifically see embodiment.

Description of drawings:

Fig. 1 is that core wraps in aluminum hull internal fixation mode 1, adopts perfusion fixing glue fixed form schematic cross-section.

Fig. 2 is that core wraps in aluminum hull internal fixation mode 2, adopts taper pinnacle and fixed lever fixed form schematic cross-section.

Fig. 3 is capacitor cover plate one a side fixed leg, the mounting structure sketch map of core bag contacts side surfaces aluminum hull.

Fig. 4 is a capacitor cover plate periphery fixed leg, and core wraps in the internal structure sketch map of installing placed in the middle in the aluminum hull.

Numerical reference explanation among the figure:

1, capacitor aluminium shell 2, capacitor seal terminal cover plate 3, capacitor terminal

4, capacitor inside is by both positive and negative polarity aluminium foil and the curling core bag that constitutes of electrolytic paper

5, core bag electrode is drawn paper tinsel 6, core bag fixing glue 7, the inboard core bag of cover plate taper fixed leg

8, aluminum hull inside bottom core bag fixed leg 9, negative pole extension

10, capacitor exterior insulation sleeve pipe

M1: capacitor cylinder axis M2: the core cylinder axis that takes all of

Embodiment:

Embodiment 1: there are two taper fixed legs 7 position between blank cover 2 inboard corresponding core bags 4 on one side and aluminum hull 1, in the corresponding core bag of aluminium shell 1 inside bottom 4 volume core hole sites one fixed lever 8 is arranged.

When capacitor is installed fixed lever 8 is inserted in capacitor core bag 4 volume core holes; Taper fixed leg 7 with position between two corresponding core bags and the aluminum hull inserts space and chucking between core bag 4 and the aluminum hull 1; Core bag 4 opposite sides are closely contacted with aluminum hull 1; With cover plate 2 clampings core bag 4 can not slided in aluminum hull 1 again, seal, accomplish the capacitor assembling.

Fixed leg 7 is borrowed power aluminum hull 1 intensity, can fetter core bag 4 windings and prevent that core bag 4 is loose, and constant intensity is improved.

See Fig. 3 sketch map.

Embodiment 2: the position has many taper fixed legs 7 evenly distributed between corresponding core bag 4 of blank cover 2 inner peripheral and aluminum hull 1, in aluminium shell 1 inside bottom central authorities corresponding core bag 4 volume core hole sites one fixed lever 8 is arranged.

When capacitor is installed fixed lever 8 is inserted in capacitor core bag 4 volume core holes; Utilize the taper fixed leg 7 of position between corresponding core bag 4 and the aluminum hull 1 to insert the space chucking between core bag 4 and the aluminum hull 1; With cover plate 2 clampings core bag 4 can endwisely not slipped in aluminum hull 1 again, seal and accomplish the capacitor assembling.

See Fig. 4 sketch map.

Claims

1. tapered core bag fixed leg that is used for large-scale aluminum electrolysis capacitor Position Design between inboard corresponding core bag of aluminum hull openend cover plate and aluminum hull; It is characterized in that: the taper fixed leg inserts between core bag and the aluminum hull and tightens; Can borrow power aluminum hull intensity constraint core to hold group and prevent loosely, and brute force is fixed the core bag.

2. the core bag fixed leg that large-scale aluminum electrolysis capacitor cover plate according to claim 1 is inboard; It is characterized in that: fixed leg can be 1,2 or a plurality of; Can being positioned at cover plate one side, that core bag opposite side is contacted with aluminum hull is fixing, also can be positioned at the cover plate periphery and make the core bag fixing between two parties.

3. the core bag fixed leg that large-scale aluminum electrolysis capacitor cover plate according to claim 1 is inboard is characterized in that: fixed leg can be circle, rhombus or other kinds profile.