CN207602412U - A kind of rectangular aluminium electrolutic capacitor - Google Patents
A kind of rectangular aluminium electrolutic capacitor Download PDFInfo
- Publication number
- CN207602412U CN207602412U CN201721455031.1U CN201721455031U CN207602412U CN 207602412 U CN207602412 U CN 207602412U CN 201721455031 U CN201721455031 U CN 201721455031U CN 207602412 U CN207602412 U CN 207602412U
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- CN
- China
- Prior art keywords
- core packet
- rubber stopper
- square shell
- aluminium electrolutic
- fixed plate
- 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.)
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Abstract
A kind of rectangular aluminium electrolutic capacitor, including square shell, seal assembly and core packet；Core packet is sealingly disposed in by seal assembly in square shell；Core packet is in flat, and the both sides of core packet are wide, intermediate narrow；The space that square shell accommodates core packet is matched with the shape of core packet；Seal assembly includes the fixed plate and pressing plate in dumbbell shaped, and fixed plate is by Laser Welding sealing welding in the openend of square shell so that sealed step there are one being formed between fixed plate and square shell；Setting is there are one the first through hole for placing rubber stopper in fixed plate, sealed set between rubber stopper and fixed plate.The space occupied is few on the thickness direction of the rectangular aluminium electrolutic capacitor of the utility model, improves the volume capacity density that ensure that capacitor, improves the utilization rate to space.Simultaneously in the utility model, the rectangular aluminium electrolutic capacitor sealing effect that the utility model is caused using special glue seal structure is good, can also be guaranteed so as to the service life of aluminium electrolutic capacitor.
Description
Technical field
The utility model is related to a kind of capacitor more particularly to a kind of rectangular aluminium electrolutic capacitors.
Background technology
At present, the aluminium electrolutic capacitor that can be seen in the market is largely that cylindrical structure designs, such capacitor core
Packet be by follow closely volume machine winding be made, be cylindrical core packet, by cylindrical core include leaching electrolyte after merging cylindrical aluminium shell in pass through
It is vertical to cross group with a tight waist, cylindrical capacitor is made.However, some application scenarios, to reduce the volume of integrated circuit, improve volume profit
With rate, a flat space can only be stayed to place aluminium electrolutic capacitor, the space of cylindrical structure aluminium electrolutic capacitor surrounding is not
It can be utilized effectively, the volume utilization in flat space is relatively low.On the other hand, under the operating mode of high ripple current, capacitance
Heat is easily gathered inside device, if heat cannot be dissipated away effectively, properties of product can be influenced.Due to the knot of capacitor in itself
Structure feature, the radial direction thermal resistance of cylindrical capacitor is big, and rate of heat dispation is slower, occurs making flat side at present in the lab
The aluminium electrolutic capacitor of shape structure, thickness is smaller, and rate of heat dispation is fast, the performance of advantageous electricity container performance, but this capacitance
The technology of device is not mature enough, and is mainly manifested in the following aspects：1st, in flat core winding around after the completion, in core packet
Between can form one " cavity ", such aluminium electrolutic capacitor shows the electrical property identical with " Bales Off "；2nd, square electric container by
In can not girdle the waist as cylindrical capacitor, therefore its sealing effect is bad, the serious aluminium electrolutic capacitor that influences
Service life.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide one kind when in use not
It will appear Bales Off phenomenon, and the rectangular aluminium electrolutic capacitor of service life length.
In order to solve the above technical problems, the utility model proposes technical solution be:A kind of rectangular aluminium electrolutic capacitor,
It is characterized in that：Including square shell, seal assembly and core packet；The core packet is sealingly disposed in square shell by seal assembly
It is interior；The core packet is in flat, and the both sides of core packet are wide, intermediate narrow, and the cross section of core packet is in dumbbell shaped；The square shell
The space for accommodating core packet is matched with the shape of core packet；The seal assembly includes the fixed plate and pressing plate in dumbbell shaped, described solid
Fixed board is by Laser Welding sealing welding in the openend of square shell so that close there are one being formed between fixed plate and square shell
Seal step；Setting is there are one the first through hole for placing rubber stopper in the fixed plate, sealed set between rubber stopper and fixed plate,
The rubber stopper is in olive-type structure small in ends, broad in the middle；One end of rubber stopper is fixed by fixed plate, and the other end passes through one
Block pressur plate is fixed, and is sealed between rubber stopper and pressing plate by epoxide-resin glue, and rubber is completely covered in epoxide-resin glue
Plug；On the pressing plate setting there are one with matched second through-hole of rubber stopper shaped upper part.In the utility model, core packet it is transversal
Face refers to that core packet is trusting the state in shell in dumbbell shaped.Core packet cross section after the completion of winding be it is oval,
First with two pieces of thin plates to being squeezed in the middle part of core packet before core is packaged into square shell so that the both sides of core packet
It is wide, intermediate narrow, it is then charged into square shell, since square shell accommodates the limitation in core packet space, core packet is just squeezed compression
It is real, be not in thus the situation of similar " Bales Off ".In the utility model, since core coating is completely sealed in fixed plate
Between pressing plate, and after the guide pin of capacitor passes through rubber stopper, epoxide-resin glue is completely covered rubber stopper and causes this practicality
The sealing effect of novel rectangular aluminium electrolutic capacitor is good, and service life is guaranteed.
In the utility model, there are one seal convexity, seal convexity and first through hole for the surrounding setting of the first through hole
The fixed space of rubber stopper lower part is collectively formed, the shape of fixed space is matched with the shape of rubber stopper lower part, seal convexity and
It is sealed between the inner wall of first through hole and rubber stopper lower part by epoxide-resin glue.In the utility model, to seal assembly
When assembling, the lower part of rubber stopper is fixed on seal convexity by epoxide-resin glue sealing in advance and first through hole is total to
With being formed in the fixed space of rubber stopper lower part, then guide pin that core is wrapped to face passes through rubber stopper, with Laser Welding by fixed plate
Sealing welding is in the openend of square shell.
It in the utility model, is sealed between the pressing plate and square shell by epoxide-resin glue glue so that pressing plate and rectangular
Shell forms an entirety.
In the utility model, in order to further increase the sealing effect of this aluminium electrolutic capacitor, the height of the pressing plate
Less than the height of sealed step, entire sealed step is filled by epoxide-resin glue, pressure is completely covered in epoxide-resin glue
Plate, and epoxide-resin glue forms a smooth section with square shell.Aluminium electricity thus is completely covered with epoxide-resin glue
The openend of electrolysis condenser, so as to ensure the air-tightness of entire capacitor.
In the utility model, the outermost layer of the core packet is at least wound with layer of transparent adhesive tape, the width of the adhesive tape
Degree is identical with the height of core packet.It can ensure that core packet will not be by when being extruded or clamped by the setting of adhesive tape
To damage.
In the utility model, the core packet is wound by cathode foil, electrolytic paper and anode foil, the cathode foil and cathode
Two layers of electrolytic paper is provided between foil, and the width of electrolytic paper is more than the width of cathode foil, the width of cathode foil is more than cathode
The width of foil, the both sides of the edge of the anode foil are located at the inside of cathode foil both sides of the edge, the both sides of the edge position of the cathode foil
In the inside of electrolytic paper both sides of the edge.In the utility model, the both sides of the edge of anode foil are located at the inside of cathode foil both sides of the edge,
Even if the burr at cathode foil edge in this way has pierced through electrolytic paper and will not have been contacted with anode foil and the phenomenon that short circuit occur.Simultaneously originally
In utility model, electrolytic paper has two layers, and such burr is also not easy to pierce through the generation of the further house short circuit of electrolytic paper.Together
When, in the utility model, the both sides of the edge of cathode foil are located at the inside of electrolytic paper both sides of the edge, have thus completely cut off anode completely
" climbing electricity " phenomenon between foil and anode foil.
Compared with prior art, the utility model has the advantage of：The thickness of the rectangular aluminium electrolutic capacitor of the utility model
It is few to spend the space occupied on direction, improves the volume capacity density that ensure that capacitor, improves the utilization rate to space.Simultaneously
In the utility model, the rectangular aluminium electrolutic capacitor sealing effect that the utility model is caused using special glue seal structure is good,
It can also be guaranteed so as to the service life of aluminium electrolutic capacitor.
Description of the drawings
Fig. 1 is the core pack arrangement schematic diagram of the rectangular aluminium electrolutic capacitor of the utility model.
Fig. 2 is the structure diagram of square shell and seal assembly in the utility model.
Fig. 3 is the schematic cross-sectional view of seal assembly in the utility model.
Fig. 4 is the structure diagram after the expansion of the utility model core packet.
Marginal data
1st, square shell；2nd, core packet；3rd, fixed plate；4th, pressing plate；5th, first through hole；6th, rubber stopper；7th, the second through-hole；8th, it is close
Envelope protrusion；9th, cathode foil；10th, electrolytic paper；11st, anode foil；12nd, adhesive tape；13rd, guide pin；14th, epoxide-resin glue.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, meticulously describes, but the scope of protection of the utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting among other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to and limits this practicality
Novel protection domain.
Embodiment
A kind of rectangular aluminium electrolutic capacitor as Figure 1-Figure 4, including square shell 1, seal assembly and core packet 2；Core
Packet 2 is sealingly disposed in by seal assembly in square shell 1；Core packet 2 is in flat, and the both sides of core packet 2 are wide, intermediate narrow,
The cross section of core packet is in dumbbell shaped；The space that square shell 1 accommodates core packet 2 is matched with the shape of core packet 2；Seal assembly includes
The fixed plate 3 of dumbbell shaped and pressing plate 4, fixed plate 3 is by Laser Welding sealing welding in the openend of square shell 1 so that fixed
Sealed step there are one being formed between plate 3 and square shell 1；There are one place rubber stopper 6 first is logical for setting in fixed plate 3
Hole, sealed set between rubber stopper 6 and fixed plate 3, rubber stopper 6 are in olive-type structure small in ends, broad in the middle；Rubber stopper 6
One end is fixed by fixed plate 3, and the other end is fixed by a block pressur plate 4, and passes through asphalt mixtures modified by epoxy resin between rubber stopper 6 and pressing plate 4
Fat glue 14 seals, and rubber stopper 6 is completely covered in epoxide-resin glue 14 so that guide pin 13 is in seal shape after passing through rubber stopper 6
State；On pressing plate 4 setting there are one with matched second through-hole 7 of 6 shaped upper part of rubber stopper；The outermost layer of core packet 2 is at least wound with
Layer of transparent adhesive tape 12, the width of adhesive tape 12 are identical with the height of core packet 2.Pass through epoxy between pressing plate 4 and square shell 1
Resin glue glue seals.
In the present embodiment, there are one seal convexities 8 for the surrounding setting of first through hole 5, and seal convexity 8 and first through hole 5 are common
With the fixed space for forming 6 lower part of rubber stopper, the shape of fixed space is matched with the shape of 6 lower part of rubber stopper, 8 He of seal convexity
It is sealed between 6 lower part of inner wall and rubber stopper of first through hole 5 by epoxide-resin glue.
In the present embodiment, the height of pressing plate 4 is less than the height of sealed step, by epoxide-resin glue 14 by entire sealing station
Rank is filled, and pressing plate 4 is completely covered in epoxide-resin glue 14, and epoxide-resin glue 14 and the formation of square shell 1 one are smooth
Section.
In the present embodiment, core packet 2 is wound by cathode foil 9, electrolytic paper 10 and anode foil 11, cathode foil 9 and anode foil
Two layers of electrolytic paper 10 is provided between 11, and the width of electrolytic paper 10 is more than the width of cathode foil 9, the width of cathode foil 9 is big
In the width of anode foil 11, the both sides of the edge of anode foil 11 are located at the inside of 9 both sides of the edge of cathode foil, the two sides of cathode foil 9
Edge is located at the inside of 10 both sides of the edge of electrolytic paper.
The space occupied is few on the thickness direction of the rectangular aluminium electrolutic capacitor of the present embodiment, and raising ensure that capacitor
Volume capacity density improves the utilization rate to space.Simultaneously in the utility model, this is caused using special glue seal structure
The rectangular aluminium electrolutic capacitor sealing effect of utility model is good, can also be protected so as to the service life of aluminium electrolutic capacitor
Card.
Claims (4)
1. a kind of rectangular aluminium electrolutic capacitor, it is characterised in that：Including square shell, seal assembly and core packet；The core packet leads to
Seal assembly is crossed to be sealingly disposed in square shell；The core packet is in flat, and the both sides of core packet are wide, narrow, the core packet in centre
Cross section be in dumbbell shaped；The space that the square shell accommodates core packet is matched with the shape of core packet；The seal assembly includes
In the fixed plate and pressing plate of dumbbell shaped, the fixed plate is by Laser Welding sealing welding in the openend of square shell so that Gu
Sealed step there are one being formed between fixed board and square shell；There are one place rubber stopper first is logical for setting in the fixed plate
Hole, sealed set between rubber stopper and fixed plate, the rubber stopper are in olive-type structure small in ends, broad in the middle；Rubber stopper
One end is fixed by fixed plate, and the other end is fixed by a block pressur plate, and passes through epoxide-resin glue between rubber stopper and pressing plate
Sealing, and rubber stopper is completely covered in epoxide-resin glue；There are one matched with rubber stopper shaped upper part for setting on the pressing plate
Second through-hole；The outermost layer of the core packet is at least wound with layer of transparent adhesive tape, the width of the adhesive tape and the height of core packet
It spends identical；There are one seal convexities for the surrounding setting of the first through hole, and rubber stopper is collectively formed in seal convexity and first through hole
The fixed space of lower part, the shape of fixed space are matched with the shape of rubber stopper lower part, the inner wall of seal convexity and first through hole
It is sealed between rubber stopper lower part by epoxide-resin glue.
2. rectangular aluminium electrolutic capacitor according to claim 1, it is characterised in that：Lead between the pressing plate and square shell
Cross epoxide-resin glue glue envelope.
3. rectangular aluminium electrolutic capacitor according to claim 1, it is characterised in that：The height of the pressing plate is less than sealing station
Entire sealed step is filled by the height of rank by epoxide-resin glue, and pressing plate, and epoxy is completely covered in epoxide-resin glue
Resin glue forms a smooth section with square shell.
4. rectangular aluminium electrolutic capacitor according to claim 1, it is characterised in that：The core packet is by cathode foil, electrolytic paper
It is wound with anode foil, two layers of electrolytic paper is provided between the cathode foil and anode foil, and the width of electrolytic paper is more than
The width of cathode foil, the width of cathode foil are more than the width of anode foil, and the both sides of the edge of the anode foil are located at cathode foil both sides
The inside at edge, the both sides of the edge of the cathode foil are located at the inside of electrolytic paper both sides of the edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455031.1U CN207602412U (en) | 2017-11-03 | 2017-11-03 | A kind of rectangular aluminium electrolutic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455031.1U CN207602412U (en) | 2017-11-03 | 2017-11-03 | A kind of rectangular aluminium electrolutic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602412U true CN207602412U (en) | 2018-07-10 |
Family
ID=62758165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721455031.1U Expired - Fee Related CN207602412U (en) | 2017-11-03 | 2017-11-03 | A kind of rectangular aluminium electrolutic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602412U (en) |
-
2017
- 2017-11-03 CN CN201721455031.1U patent/CN207602412U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180710 Termination date: 20201103 |