CN206574605U - Electrolytic capacitor and its capacitor core - Google Patents
Electrolytic capacitor and its capacitor core Download PDFInfo
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- CN206574605U CN206574605U CN201720094527.4U CN201720094527U CN206574605U CN 206574605 U CN206574605 U CN 206574605U CN 201720094527 U CN201720094527 U CN 201720094527U CN 206574605 U CN206574605 U CN 206574605U
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- paper
- paper tinsel
- negative
- capacitor
- capacitor core
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Abstract
The utility model is related to a kind of electrolytic capacitor and its capacitor core.Wherein, capacitor core is formed by least two winding layers winding.Winding layer include electrolyte paper, cover negative paper tinsel in electrolyte paper side, cover in negative paper tinsel dorsad the anolyte paper of electrolyte paper side, cover and the positive paper tinsel of paper tinsel side dorsad born in anolyte paper.It is being respectively arranged with that the positive pole electrically connected with positive paper tinsel and negative paper tinsel draws bar and negative pole draws bar on positive paper tinsel and negative paper tinsel.This is equivalent at least two capacitors for including single winding layer are in parallel.But, because two winding layers are stacked gradually, therefore the volume of above-mentioned electrolytic capacitor can't be significantly increased.It can be seen from capacitor parallel ruler, in the case where above-mentioned electrolytic capacitor volume is not significantly changed, its capacity can be obviously improved.Further, with the lifting of capacity, the capacitive reactance of above-mentioned electrolytic capacitor reduces therewith, so as to effectively improve high frequency performance.
Description
Technical field
The utility model is related to capacitor technology field, more particularly to a kind of electrolytic capacitor and its capacitor core.
Background technology
Electrolytic capacitor is a kind of most common capacitor.Traditional aluminium electrolutic capacitor be by a positive pole aluminium foil,
The mode of electrolytic paper, a negative paper tinsel, i.e. cathode foil-electrolytic paper-negative pole winding forms capacitor core.When volume is suitable, electrolysis
The capacitance of capacitor is smaller.
According to capacitive reactance calculation formula：Xc=1/ (2 π fc), the capacitive reactance that this results in traditional electrolytic capacitor is larger, and then
Cause high frequency performance poor.In charging pile, ups power, inverter etc. need the application scenarios of high-frequency circuit, effect is not good.
Utility model content
Based on this, it is necessary to higher for existing electrolytic capacitor capacitive reactance, there is provided a kind of energy for the problem of high frequency performance is poor
Reduce the electrolytic capacitor and its capacitor core of capacitive reactance.
A kind of capacitor core, including at least two winding layers, the winding layer include electrolyte paper, covered in described negative
The negative paper tinsel of pole electrolytic paper side, cover in the negative paper tinsel dorsad the anolyte paper of the electrolyte paper side, cover in institute
State the positive paper tinsel of the anolyte paper dorsad negative paper tinsel side；Be respectively arranged with the positive paper tinsel and the negative paper tinsel with the positive paper tinsel and
The positive pole of the negative paper tinsel electrical connection draws bar and negative pole draws bar；
Wherein, at least two winding layer is stacked gradually and around a spool coiling and molding, to form the capacitor core,
And the electrolyte paper is located at the outside of the capacitor core.
In one of the embodiments, on the spool bearing of trend, the size of the negative paper tinsel is more than the negative electricity
Solve the size of paper.
In one of the embodiments, on the direction vertical with the bearing of trend of the spool, the negative paper tinsel and described
The size of positive paper tinsel is respectively smaller than the size of the electrolyte paper and the anolyte paper.
In one of the embodiments, the positive pole draws bar and draws the laminated structure that bar is strip with the negative pole.
In one of the embodiments, the positive pole in one of them described winding layer draws bar and the negative pole draws bar point
Do not draw bar with the positive pole in the adjacent winding layer and the negative pole draws bar and is oppositely arranged.
In one of the embodiments, the positive pole draws bar and the negative pole draws bar for silver electrode.
A kind of electrolytic capacitor, including：
Housing；
Capacitor core as any one of above-mentioned preferred embodiment, the capacitor core houses and is fixed on the shell
In vivo；And
Pin, is arranged in the housing, and one end of the pin draws bar with the positive pole and the negative pole draws bar and is electrically connected
Connect, the other end is located at the outside of the housing.
In one of the embodiments, in addition to pressure sensitive adhesive, the pressure sensitive adhesive is filled in the capacitor core and the shell
Between the inwall of body.
Above-mentioned electrolytic capacitor, its capacitor core is formed by least two winding layers winding, and this is equivalent at least two
The individual capacitor including single winding layer is in parallel.But, because two winding layers are stacked gradually, therefore the body of above-mentioned electrolytic capacitor
Product can't be significantly increased.It can be seen from capacitor parallel ruler, situation about being not significantly changed in above-mentioned electrolytic capacitor volume
Under, its capacity can be obviously improved.Further, with the lifting of capacity, the capacitive reactance of above-mentioned electrolytic capacitor subtracts therewith
It is small, so as to effectively improve high frequency performance.
Brief description of the drawings
Fig. 1 is the structural representation of electrolytic capacitor in the utility model preferred embodiment；
Fig. 2 is the structural representation of capacitor core in electrolytic capacitor shown in Fig. 1；
Fig. 3 is the expanded view of capacitor core shown in Fig. 2.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms
Realize, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to of the present utility model
The understanding of disclosure is more thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
Referring to Fig. 1, the electrolytic capacitor 10 in the utility model preferred embodiment includes housing 101, capacitor core 100
And pin 102.
Housing 101 is typically made of aluminum, and general in cylinder with reference to the shape housing 101 of capacitor.Housing 101 is tool
There is the hollow structure of host cavity, available for housing and install capacitor core 100.
Also referring to Fig. 2 and Fig. 3, capacitor core 100 includes at least two winding layers 110.Wherein, winding layer 110 is wrapped
Include electrolyte paper 111, negative paper tinsel 112, anolyte paper 113, positive paper tinsel 114.Wherein, also set respectively on positive paper tinsel 114 and negative paper tinsel 112
It is equipped with that positive pole draws bar 115 and negative pole draws bar 116.
Negative paper tinsel 112 is covered in the side of electrolyte paper 111.Anolyte paper 113 is covered in negative paper tinsel 112 dorsad electrolyte
The side of paper 111.Positive paper tinsel 114 is covered dorsad bears the side of paper tinsel 112 in anolyte paper 113.Positive pole draws bar 115 and negative pole draws bar 116
Electrically connected respectively with positive paper tinsel 114 and negative paper tinsel 112.
Specifically in the present embodiment, positive pole draws bar 115 and negative pole draws bar 116 for silver electrode.Silver is excellent electric conductor, is used
Draw bar 115 as positive pole and negative pole draws the material of bar 116, can make that positive pole draws bar 115 and negative pole draws bar 116 and positive paper tinsel 114 and negative paper tinsel
112 contacts are good.
Wherein, at least two winding layers 110 are stacked gradually and around a spool coiling and molding, to form capacitor core 100, and
Electrolyte paper 111 is located at the outside of capacitor core 100.During winding, positive paper tinsel 114, negative paper tinsel 113 align, and placed in the middle with electrolytic paper
Alignment is wound.Capacitor core 100 after shaping is general in cylinder.And positive pole draws bar 115 and negative pole draws bar 116 and is then used for
The positive paper tinsel 114 and negative paper tinsel 112 rolled up inside capacitor core 100 are drawn.
Capacitor core 100 after shaping is housed and is fixed in housing 101.Pin 102 is arranged in housing 101.Moreover, drawing
One end of pin 102 draws bar 115 with positive pole and negative pole draws bar 116 and electrically connected, and the other end is located at the outside of housing 101.Pass through pin
102, just electrolytic capacitor 10 can be connected in circuit.
In the present embodiment, electrolytic capacitor 10 also includes pressure sensitive adhesive 103.Pressure sensitive adhesive 103 be filled in capacitor core 100 with
Between the inwall of the housing 101.
Because capacitor core 100 includes at least two winding layers 110, then include single winding layer equivalent to by least two
110 capacitor is in parallel.But, because two winding layers 110 are stacked gradually, therefore the volume of electrolytic capacitor 10 can't be obvious
Increase.It can be seen from capacitor parallel ruler, in the case where the volume of electrolytic capacitor 10 is not significantly changed, its capacity can obtain
It is obviously improved, and then capacitive reactance can be effectively reduced.
In the present embodiment, on spool bearing of trend, the size for bearing paper tinsel 112 is more than the size of electrolyte paper 111.
Specifically, negative paper tinsel 112 is wider compared with electrolyte paper 111.Therefore, after capacitor core 100 is molded, negative paper tinsel 112 stretches out
In the two ends of capacitor core 100, the phenomenon of negative paper tinsel 112 " exposed " is formed.So, the radiating of paper tinsel 112 is born convenient.Meanwhile, can also be
The end of capacitor core 100 forms multiple radiating grooves, so as to improve the radiating effect of capacitor core 100.
Further, in the present embodiment, on the direction vertical with the bearing of trend of spool, paper tinsel 112 and positive paper tinsel 114 are born
Size be respectively smaller than the size of electrolyte paper 111 and anolyte paper 113.
Therefore, after the shaping of capacitor core 100, multiple hollow radiatings can be formed along the central axis direction of capacitor core 100
Passage.Heat dissipation channel can be easy to the heat inside capacitor core 100 quickly to export, so as to further improve capacitor core 100
Radiating effect.
In the present embodiment, positive pole draws bar 115 and draws the laminated structure that bar 116 is strip with negative pole.The side of laminated structure one
Face can increase positive pole and draw the contact area that bar 115 draws bar 116 and positive paper tinsel 114 and negative paper tinsel 112 with negative pole.On the other hand, sheet knot
Structure can make that positive pole draws bar 115 and negative pole draws bar 116 and contacts closer with electrolytic paper, it is to avoid larger gap occur and influence electrolysis electricity
The performance of container 10.
Further, in the present embodiment, the positive pole in one of winding layer 110 draws bar 115 and negative pole draws 116 points of bar
Do not draw bar 115 with the positive pole in adjacent windings layer 110 and negative pole draws bar 116 and is oppositely arranged.Therefore, when capacitor core 100 is wound
After shaping, the positive pole in different winding layers 110 draws bar 115 and negative pole to draw bar 116 in small distance, consequently facilitating multiple positive poles are drawn
Bar 115 and negative pole are connected after drawing the boundling of bar 116 with pin 102.
Above-mentioned electrolytic capacitor 10, its capacitor core 100 is wound by least two winding layers 110 and formed, and this is equivalent to
At least two capacitors for including single winding layer 110 are in parallel.But, because two winding layers 110 are stacked gradually, therefore electrolysis
The volume of capacitor 10 can't be significantly increased.It can be seen from capacitor parallel ruler, it is not apparent from the volume of electrolytic capacitor 10
In the case of change, its capacity can be obviously improved.Further, with the lifting of capacity, the appearance of electrolytic capacitor 10
It is anti-to reduce therewith, so as to effectively improve high frequency performance.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
1. a kind of capacitor core, it is characterised in that including at least two winding layers, the winding layer includes electrolyte paper, covered
Negative paper tinsel located at the electrolyte paper side, cover in the anolyte of the negative paper tinsel dorsad electrolyte paper side
Paper, cover in the positive paper tinsel of the anolyte paper dorsad negative paper tinsel side；It is respectively arranged with the positive paper tinsel and the negative paper tinsel
The positive pole electrically connected with the positive paper tinsel and the negative paper tinsel draws bar and negative pole draws bar；
Wherein, at least two winding layer is stacked gradually and around a spool coiling and molding, to form the capacitor core, and institute
State the outside that electrolyte paper is located at the capacitor core.
2. capacitor core according to claim 1, it is characterised in that on the spool bearing of trend, the negative paper tinsel
Size is more than the size of the electrolyte paper.
3. capacitor core according to claim 2, it is characterised in that in the direction vertical with the bearing of trend of the spool
On, the size of the negative paper tinsel and the positive paper tinsel is respectively smaller than the size of the electrolyte paper and the anolyte paper.
4. capacitor core according to claim 1, it is characterised in that the positive pole draws bar and draws bar with the negative pole for strip
The laminated structure of shape.
5. capacitor core according to claim 4, it is characterised in that the positive pole in one of them described winding layer draws
Bar and the negative pole draw that bar draws bar with the positive pole in the adjacent winding layer respectively and the negative pole draws bar and is oppositely arranged.
6. capacitor core according to claim 1, it is characterised in that the positive pole draw bar and the negative pole to draw bar be silver electricity
Pole.
7. a kind of electrolytic capacitor, it is characterised in that including：
Housing；
Capacitor core as described in above-mentioned any one of claim 1 to 6, the capacitor core houses and is fixed on the housing
It is interior；And
Pin, is arranged in the housing, and one end of the pin draws bar with the positive pole and the negative pole draws bar and electrically connected, separately
One end is located at the outside of the housing.
8. electrolytic capacitor according to claim 7, it is characterised in that also including pressure sensitive adhesive, the pressure sensitive adhesive is filled in
Between the inwall of the capacitor core and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094527.4U CN206574605U (en) | 2017-01-24 | 2017-01-24 | Electrolytic capacitor and its capacitor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094527.4U CN206574605U (en) | 2017-01-24 | 2017-01-24 | Electrolytic capacitor and its capacitor core |
Publications (1)
| Publication Number | Publication Date |
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| CN206574605U true CN206574605U (en) | 2017-10-20 |
Family
ID=60060582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720094527.4U Active CN206574605U (en) | 2017-01-24 | 2017-01-24 | Electrolytic capacitor and its capacitor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206574605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185691A (en) * | 2020-09-04 | 2021-01-05 | 湖南盛通电子科技有限公司 | Integrated solid capacitor and manufacturing method thereof |
-
2017
- 2017-01-24 CN CN201720094527.4U patent/CN206574605U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185691A (en) * | 2020-09-04 | 2021-01-05 | 湖南盛通电子科技有限公司 | Integrated solid capacitor and manufacturing method thereof |
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