CN209980994U - Double-sided metallized transverse folding type thin film capacitor - Google Patents
Double-sided metallized transverse folding type thin film capacitor Download PDFInfo
- Publication number
- CN209980994U CN209980994U CN201920777319.3U CN201920777319U CN209980994U CN 209980994 U CN209980994 U CN 209980994U CN 201920777319 U CN201920777319 U CN 201920777319U CN 209980994 U CN209980994 U CN 209980994U
- Authority
- CN
- China
- Prior art keywords
- metallized
- film
- double
- sided
- metalized
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a horizontal foldable film capacitor of two-sided metallization, it includes two-sided metallized film, and two-sided metallized film includes insulating film, and insulating film both sides surface is equipped with first metallized surface and second metallized surface respectively, the longitudinal edge of two-sided metallized film both sides surface is equipped with the first blank limit and the second blank limit that expose insulating film surface respectively, and first, second blank limit one left side-right distribution; the double-sided metalized film is transversely folded in a reciprocating mode to form a double-sided metalized film folding piece, a first terminal and a second terminal are arranged on the double-sided metalized film folding piece respectively, the first terminal is in conductive contact with the first metalized surface, and the second terminal is in conductive contact with the second metalized surface. The double-sided metalized transverse folding type film capacitor is characterized in that a capacitor core is formed by adopting a transverse reciprocating folding mode on a double-sided metalized film, and compared with a traditional film capacitor core formed by winding, a layer of isolation paper is omitted, so that the volume can be reduced by more than 20%.
Description
Technical Field
The utility model relates to an electric capacity, especially a horizontal foldable film capacitor of two-sided metallization.
Background
The capacitor core of the existing film capacitor is generally formed by overlapping and winding a double-sided metallized film and isolation paper, vapor-plated metal layers are arranged on two sides of the double-sided metallized film, the two vapor-plated metal layers are led out through terminals to form a plurality of electrodes of the capacitor, and the isolation paper is used for preventing the two electrodes from contacting when being wound. In the structure, the double-sided metallized film is unfolded to form the same flat capacitor, and the two evaporated metal layers form two electrodes, so that the volume of the capacitor can be increased by adding the isolation paper in the winding process of the capacitor, and the surface areas of the two electrodes of the capacitor are not affected. In addition, the wound double-sided metallized film acts like a coil, and an inductance is generated.
Disclosure of Invention
An object of the utility model is to provide a two-sided metallization horizontal foldable film capacitor rational in infrastructure, small, with low costs.
The purpose of the utility model is realized like this:
the utility model provides a horizontal foldable film capacitor of two-sided metallization, includes two-sided metallized film, and two-sided metallized film includes insulating film, and insulating film both sides surface is equipped with first metallized surface and second metallized surface respectively, its characterized in that: the longitudinal edges of the two side surfaces of the double-sided metallized film are respectively provided with a first blank edge and a second blank edge which are exposed out of the surface of the insulating film, and the first blank edge and the second blank edge are distributed from left to right; the double-sided metallized film is transversely folded in a reciprocating mode to form a double-sided metallized film folding piece, a first terminal and a second terminal are arranged at the left end and the right end of the double-sided metallized film folding piece respectively, the first terminal is in conductive contact with the first metallized surface, and the second terminal is in conductive contact with the second metallized surface.
The purpose of the utility model can also adopt the following technical measures to solve:
as a more specific solution, the longitudinal edge of the first margin is also provided with a first metallized edge, spaced from the first metallized surface; the longitudinal edge of the second margin is also provided with a second metallized edge spaced from the second metallized surface. Because the first metalized edge is not conducted with the first metalized surface, and the longitudinal edges of the first metalized edge and the second metalized surface are positioned on the same side, even though the first metalized edge and the second metalized edge pass through the second terminal channel, short circuit with the first metalized surface can not be caused, but the metalized edge is in contact with the terminal, so that the attachment area of the terminal is increased, and the terminal connection is more reliable.
As a further proposal, the longitudinal edge of the first metalized surface is also provided with a first thickened metalized edge; the longitudinal edge of the second metallized surface is also provided with a second thickened metallized edge. By providing a thickened metalized edge, the over-current capability and the terminal attachment capability can be increased.
As a further approach, the sheet resistance (resistance per cubic centimeter) of the first or second metallized surface is greater than 10 ohms. The first metalized surface and the second metalized surface respectively form square resistors, and the resistor of one metalized surface needs to meet certain requirements; the sheet resistance of the other metallized surface is not limited.
As a further scheme, the material of the first metalized surface and the second metalized surface is aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, copper, zinc-aluminum alloy or tin alloy is attached to the surface of the insulating film by evaporation (but not limited to the above materials and attachment methods); the insulating film is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film (but not limited to the above materials).
As a further aspect, the first metalized surface and/or the second metalized surface is T-shaped or mesh-shaped. The T-shaped or meshed metallized surface includes a small area of metal layer (i.e., the surface area of some locations is small), and when a large current exceeding the circuit requirement passes through the T-shaped or meshed metallized surface during use, the small area of metal layer melts to protect other electronic components in the circuit. The two metallized surfaces may be the same or different.
As a further option, the transverse fold lines of the double-sided metallized film are perpendicular to the longitudinal edges of the double-sided metallized film.
As a further scheme, the double-sided metallized film folded piece is formed by transversely folding and compressing a single double-sided metallized film in a reciprocating way.
As a further scheme, the double-sided metallized film folding piece is formed by folding more than two double-sided metallized films and then transversely folding and compressing the two double-sided metallized films after reciprocating.
As a further scheme, the first terminal and the second terminal are formed on the end face of the double-sided metalized film folding piece through ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
The utility model has the advantages as follows:
(1) the double-sided metallized transverse folding type film capacitor is characterized in that a double-sided metallized film is transversely folded in a reciprocating manner to form a capacitor core, and compared with a traditional film capacitor core formed by winding, a layer of isolation paper is omitted, so that the volume can be reduced by more than 20%;
(2) this kind of horizontal foldable film capacitor of two-sided metallization sets up blank limit, metallization edge, thickening metallization edge to the longitudinal edge of two-sided metallization film for the adhesive force of terminal, the terminal and the surperficial electric capacity of metallization, the wall ability on first metallization surface and second metallization surface obtain abundant promotion, ensure the electric capacity safety in utilization.
(3) The double-sided metallized transverse folding film capacitor can be applied to occasions such as electric power, electronics, household appliances, high, medium and low voltage power equipment and can be connected to a circuit board.
(4) The double-sided metalized transverse folding type thin film capacitor is small in size and particularly suitable for being applied to equipment with limited internal space.
Drawings
Fig. 1 is a schematic view of a double-sided metallized film according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the cross-sectional structure of the double-sided metallized film of the present invention.
Fig. 3 is a schematic bottom view of fig. 2.
Fig. 4 is a schematic view of the folded double-sided metallized film of the present invention.
Fig. 5 is a schematic view of the cross-sectional structure a-a of fig. 4.
Fig. 6 is a schematic view of the structure of the folding process of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 to 5, a double-sided metalized transverse folding type film capacitor includes a double-sided metalized film 10, where the double-sided metalized film 10 includes an insulating film 1, two side surfaces of the insulating film 1 are respectively provided with a first metalized surface 2 and a second metalized surface 5, longitudinal edges of the two side surfaces of the double-sided metalized film 10 are respectively provided with a first margin 11 and a second margin 12 exposing the surface of the insulating film 1, and the first margin 11 and the second margin 12 are distributed left to right; the longitudinal edge of the first margin 11 is also provided with a first metallized edge 4, the first metallized edge 4 being spaced from the first metallized surface 2; the longitudinal edge of said second margin 12 is also provided with a second metallized edge 7, the second metallized edge 7 being spaced from the second metallized surface 5. The longitudinal edge of the first metallized surface 2 is also provided with a first thickened metallized edge 3; the longitudinal edge of the second metallized surface 5 is also provided with a second thickened metallized edge 6.
The double-sided metallized film 10 is transversely folded back and forth (as shown by an arrow B guide line in fig. 4) to form a double-sided metallized film folded piece, the left end and the right end of the double-sided metallized film folded piece are respectively provided with a first terminal and a second terminal 8, the first terminal is in conductive contact with the first metallized surface 2, and the second terminal 8 is in conductive contact with the second metallized surface 5.
The sheet resistance of the first metallized surface 2 or the second metallized surface 5 is greater than 10 ohms and less than 300 ohms, while the sheet resistance of the other metallized surface is not limited.
The first metalized surface 2 and the second metalized surface 5 are made of aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, the copper, the zinc-aluminum alloy or the tin alloy is attached to the surface of the insulating film 1 in an evaporation mode; the insulating film 1 is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
The first metallized surface 2 and the second metallized surface 5 are T-shaped or net-shaped structures.
The transverse fold lines of the double-sided metallized film 10 are perpendicular to the longitudinal edges of the double-sided metallized film 10.
The double-sided metallized film folded piece is formed by transversely folding and compressing a single double-sided metallized film 10 in a reciprocating mode.
The first terminal and the second terminal 8 are formed on the end face of the double-sided metalized film folding piece in the modes of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
The folding processing principle of the double-sided metallized film is as follows: as shown in fig. 6, the double-sided metallized film is fed into a folding machine, and the double-sided metallized film is processed into a double-sided metallized film folded piece by the folding machine; the folding machine comprises a workbench 50, a left chuck 30, a right chuck 40 and a swing roller 20, wherein the left chuck 30 and the right chuck 40 are respectively movably arranged at the left side and the right side of the workbench 50, and the swing roller 20 is positioned above the left chuck 30 and the right chuck 40 and swings left and right; the swing rollers 20 are arranged in two, the swing rollers 20 are arranged in parallel, a gap is formed between the swing rollers 20, after the double-sided metallized film 10 passes through the gap, one end of the double-sided metallized film 10 is clamped on the workbench 50 through the left chuck 30 or the right chuck 40, and then the double-sided metallized film 10 on the workbench 50 is loosened and tightened (in the aspect of loosening and tightening, the swinging directions of the left chuck and the right chuck are shown by arrows R1 and R2 in the graph of 6, wherein the left chuck is in a tightened state, and the right chuck is in a loosened state) through the left and right swing rollers 20 (shown by arrows C1 and C2 in the graph of 6), so that the double-sided metallized film 10 is folded.
Claims (10)
1. A double-sided metallized transverse folded film capacitor, comprising a double-sided metallized film (10), the double-sided metallized film (10) comprising an insulating film (1) and first (2) and second (5) metallized surfaces respectively attached to two side surfaces of the insulating film (1), characterized in that: the longitudinal edges of the two side surfaces of the double-sided metallized film (10) are respectively provided with a first blank edge (11) and a second blank edge (12) which are exposed out of the surface of the insulating film (1), and the first blank edge (11) and the second blank edge (12) are distributed left to right; the double-sided metalized film (10) is transversely folded in a reciprocating mode to form a double-sided metalized film folding piece, the double-sided metalized film folding piece is provided with a first terminal and a second terminal (8), the first terminal is in conductive contact with the first metalized surface (2), and the second terminal (8) is in conductive contact with the second metalized surface (5).
2. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the longitudinal edge of the first margin (11) is also provided with a first metallized edge (4), the first metallized edge (4) being spaced from the first metallized surface (2); the longitudinal edge of the second margin (12) is also provided with a second metallized edge (7), the second metallized edge (7) being spaced from the second metallized surface (5).
3. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the longitudinal edge of the first metallized surface (2) is also provided with a first thickened metallized edge (3); the longitudinal edge of the second metallized surface (5) is also provided with a second thickened metallized edge (6).
4. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the sheet resistance of the first (2) or second (5) metallized surface is greater than 10 ohms.
5. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the first metalized surface (2) and the second metalized surface (5) are made of aluminum, copper, zinc-aluminum alloy or tin alloy, and the aluminum, the copper, the zinc-aluminum alloy or the tin alloy is attached to the surface of the insulating film (1) in an evaporation mode; the insulating film (1) is an organic film, and the organic film is a polypropylene film, a polystyrene film, a polyphenylene sulfide film, a polyester film or a polycarbonate film.
6. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the first metallized surface (2) and/or the second metallized surface (5) are of a T-shaped or net-shaped structure.
7. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the transverse folding lines of the double-sided metallized film (10) are perpendicular to the longitudinal edges of the double-sided metallized film (10).
8. The double-sided metallized lateral folded film capacitor of claim 1, 2 or 3, wherein: the double-sided metallized film folding piece is formed by transversely folding and compressing a single double-sided metallized film (10) in a reciprocating mode.
9. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the double-sided metallized film folding piece is formed by folding more than two double-sided metallized films (10) and then transversely folding and compressing after reciprocating.
10. The double-sided metallized laterally folded thin film capacitor of claim 1, wherein: the first terminal and the second terminal (8) are formed on the end face of the double-sided metalized film folding piece in the modes of ion implantation, conductive medium sputtering, metal thermal spraying or metal droplet printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777319.3U CN209980994U (en) | 2019-05-27 | 2019-05-27 | Double-sided metallized transverse folding type thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777319.3U CN209980994U (en) | 2019-05-27 | 2019-05-27 | Double-sided metallized transverse folding type thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209980994U true CN209980994U (en) | 2020-01-21 |
Family
ID=69264279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920777319.3U Active CN209980994U (en) | 2019-05-27 | 2019-05-27 | Double-sided metallized transverse folding type thin film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209980994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233049A (en) * | 2019-05-27 | 2019-09-13 | 佛山市孔星材料应用研究院有限公司 | Collapsible capacitor core and its processing technology |
-
2019
- 2019-05-27 CN CN201920777319.3U patent/CN209980994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233049A (en) * | 2019-05-27 | 2019-09-13 | 佛山市孔星材料应用研究院有限公司 | Collapsible capacitor core and its processing technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203456308U (en) | Box-type high-voltage high-frequency large-pulse thin-film capacitor | |
| KR20160126870A (en) | Outer covering for storage device and storage device | |
| JPH11345604A (en) | Lithium secondary battery and battery module | |
| US8369066B2 (en) | Lamellar stacked solid electrolytic capacitor | |
| CN209980994U (en) | Double-sided metallized transverse folding type thin film capacitor | |
| CN209980995U (en) | Multi-film staggered superposed folding capacitor core | |
| CN201352505Y (en) | Metallized film power capacitor | |
| CN110233049B (en) | Folding capacitor core and processing technology thereof | |
| US6723926B2 (en) | Mounting configuration of electric and/or electronic components on a printed circuit board | |
| CN207338510U (en) | A kind of battery pack | |
| CN206301892U (en) | Collapsible battery core and secondary button lithium battery | |
| CN206451602U (en) | A kind of metallic film capacitor | |
| CN203150398U (en) | Electrolytic capacitor suitable for modular design | |
| WO2020079964A1 (en) | Secondary battery, battery pack, and power system | |
| US8369065B2 (en) | Electric double layer capacitor | |
| TW200733552A (en) | Circuit device and substrate used in said circuit device | |
| CN218731657U (en) | Battery core and battery module | |
| CN103578765A (en) | Metallized film for small-sized capacitor | |
| CN111755658A (en) | Novel thin film battery | |
| CN209980987U (en) | Double-sided metallized film for capacitor core | |
| CN203871186U (en) | Novel high-frequency aluminum electrolytic capacitor | |
| US20200082991A1 (en) | Capacitor, capacitor package structure and method of manufacturing the same | |
| CN206210971U (en) | For the protection board structure of lithium battery | |
| JPH06275248A (en) | Mounting structure for laminated battery onto substrate | |
| JP2006024727A (en) | Electrochemical element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |