CN209980995U - Multi-film staggered superposed folding capacitor core - Google Patents
Multi-film staggered superposed folding capacitor core Download PDFInfo
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- CN209980995U CN209980995U CN201920777358.3U CN201920777358U CN209980995U CN 209980995 U CN209980995 U CN 209980995U CN 201920777358 U CN201920777358 U CN 201920777358U CN 209980995 U CN209980995 U CN 209980995U
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Abstract
The utility model relates to a multi-film dislocation superposition folding type capacitor core, which comprises a double-sided metalized film, wherein the longitudinal edges of the two side surfaces of the double-sided metalized film are respectively provided with a first blank edge and a second blank edge which expose the surface of an insulating film, and the first blank edge and the second blank edge are distributed in a left-right manner; the double-sided metalized films are more than two, the opposite surfaces of every two adjacent double-sided metalized films are the same, the double-sided metalized films are folded transversely in a reciprocating mode after being overlapped to form a staggered overlapped double-sided metalized film folding piece, the left end and the right end of the staggered overlapped double-sided metalized film folding piece are respectively provided with a first terminal and a second terminal, and the first terminal and the second terminal are respectively in conductive contact with one metalized surface and the other metalized surface of each double-sided metalized film. The utility model discloses a horizontal reciprocal folding formation behind many two-sided metallized film coincide, its production efficiency is high, does not have the barrier paper between the two-sided metallized film moreover for the volume reduction and the cost of electric capacity core all reduce.
Description
Technical Field
The utility model relates to an electric capacity, especially a foldable electric capacity core of many films dislocation coincide.
Background
The capacitor core of the existing film capacitor is generally formed by overlapping and winding a double-sided metalized film and a piece of isolation paper, vapor-plated metal layers are arranged on two sides of the double-sided metalized 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. The structure has low production efficiency; in addition, the double-sided metalized film is unfolded to form the same flat capacitor, and 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 will generate an inductance.
Disclosure of Invention
An object of the utility model is to provide a rational in infrastructure, can improve production efficiency, reduce cost, small many films foldable electric capacity core of coincide.
The purpose of the utility model is realized like this:
the utility model provides a foldable electric capacity core of many films dislocation coincide, 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 metalized films are provided with more than two double-sided metalized films, the opposite surfaces of the two adjacent double-sided metalized films are the same, the double-sided metalized films are transversely folded in a reciprocating mode after being overlapped to form a staggered overlapped double-sided metalized film folding piece, a first terminal and a second terminal are arranged at the left end and the right end of the staggered overlapped double-sided metalized film folding piece respectively, the first terminal is in conductive contact with the first metalized surface of each double-sided metalized film, and the second terminal is in conductive contact with the second metalized surface of each double-sided metalized film.
The purpose of the utility model can also adopt the following technical measures to solve:
more specifically, the two adjacent double-sided metallized films are aligned with each other.
As a further proposal, the two adjacent double-sided metalized films are staggered with a certain distance from each other, but the first metalized surface and the second metalized surface after the folding of each double-sided metalized film are separated from each other.
As a further approach, the sheet resistance of the first metalized surface or the second metalized surface is greater than 10 ohms. The first metalized surface and the second metalized surface respectively form square resistors, the square resistor of one metalized surface needs to meet certain requirements, and the square resistor of the other metalized surface is not limited.
As a further alternative, 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).
As a further scheme, when the material of the first metalized surface or the second metalized surface is aluminum, the sheet resistance is more than 30 ohms; when the material of the first metalized surface or the second metalized surface is zinc-aluminum alloy, the sheet resistance of the material is more than 60 ohms. The metallized surface is made of different materials and has different resistance requirements.
As a further alternative, 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 alternative, the transverse fold lines of the double-sided metallized film are perpendicular to the longitudinal edges of the double-sided metallized film.
The utility model has the advantages as follows:
(1) the multi-film staggered and overlapped folding type capacitor core is formed by transversely and repeatedly folding a plurality of double-sided metalized films after being overlapped, the production efficiency is high, and in addition, compared with the prior art, the isolating paper between the double-sided metalized films is omitted, so that the volume and the cost of the capacitor core are both reduced;
(2) the multi-film staggered superposed folding type capacitor core can be applied to occasions such as electric power, electronics, household appliances, high, medium and low voltage power equipment and the like, and can be connected to a circuit board.
(3) The multi-film staggered overlapping folding capacitor core is small in size and particularly suitable for being applied to equipment with limited internal space.
Drawings
Fig. 1 is a schematic front view of a double-sided metalized film according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the cross-sectional structure of the double-sided metalized film according to the present invention.
Fig. 3 is a schematic view of the folding structure of the utility model after the multiple double-sided metalized films are folded.
Fig. 4 is a schematic view of the cross-sectional structure a-a of fig. 3.
Fig. 5 is a schematic structural diagram of another embodiment 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 4, a multi-film staggered overlapping folding type capacitor core comprises a double-sided metalized film 10, wherein the double-sided metalized film 10 comprises an insulating film 1, a first metalized surface 2 and a second metalized surface 5 are respectively arranged on two side surfaces of the insulating film 1, a first margin 11 and a second margin 12 exposing the surface of the insulating film 1 are respectively arranged on the longitudinal edges of the two side surfaces of the double-sided metalized film 10, and the first margin 11 and the second margin 12 are distributed left to right; the double-sided metalized films 10 are more than two, the opposite surfaces of two adjacent double-sided metalized films 10 are the same, each double-sided metalized film 10 is folded transversely in a reciprocating mode after being overlapped to form a staggered overlapped double-sided metalized film folding piece, a first terminal 8 and a second terminal 9 are arranged at the left end and the right end of the staggered overlapped double-sided metalized film folding piece respectively, the first terminal 8 is in conductive contact with the first metalized surface 2 of each double-sided metalized film 10, and the second terminal 9 is in conductive contact with the second metalized surface 5 of each double-sided metalized film 10.
The two adjacent double-sided metalized films 10 are staggered from left to right by a certain distance; alternatively, the two adjacent double-sided metallized films 10 are aligned with each other, as shown in fig. 5.
The first metallized surface 2 and the second metallized 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.
When the first metalized surface 2 or the second metalized surface 5 is made of aluminum, the sheet resistance of the aluminum is more than 30 ohms and less than 300 ohms; when the material of the first metallized surface 2 or the second metallized surface 5 is zinc-aluminum alloy, the sheet resistance is larger than 60 ohm and smaller than 300 ohm.
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/or the second metallized surface 5 are T-shaped or net-shaped.
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 folding processing principle of the double-sided metalized film is as follows: referring to fig. 6, each double-sided metallized film 10 is fed into a folding machine, and the double-sided metallized film 10 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 two swing rollers 20 are arranged in parallel, a gap is formed between the two swing rollers 20, after each double-sided metalized film 10 passes through the gap, one end of each double-sided metalized film 10 is clamped on the workbench 50 through the left chuck 30 or the right chuck 40, and then the double-sided metalized film 10 is folded through the cooperation of the left and right swing rollers 20 (shown by arrows C1 and C2 in figure 6) and the left chuck 30, the right chuck 40 and the double-sided metalized film 10 on the workbench 50 in a loose and tight manner (in the aspect of loose and tight manner, the swing directions of the left chuck and the right chuck are shown by arrows R1 and R2 in figure 6, wherein the left chuck is in a tight state, and the right chuck is in a loose state).
Claims (9)
1. The utility model provides a foldable electric capacity core of many films dislocation coincide, includes two-sided metallized film (10), and two-sided metallized film (10) are equipped with first metallized surface (2) and second metallized surface (5), its characterized in that respectively including insulating film (1), insulating film (1) both sides surface: the longitudinal edges of the two side surfaces of the double-sided metalized 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 from left to right; the double-sided metalized films (10) are more than two, the opposite surfaces of two adjacent double-sided metalized films (10) are the same, each double-sided metalized film (10) is folded transversely and repeatedly after being overlapped to form a staggered overlapped double-sided metalized film folding piece, the left end and the right end of the staggered overlapped double-sided metalized film folding piece are respectively provided with a first terminal (8) and a second terminal (9), the first terminal (8) is in conductive contact with the first metalized surface (2) of each double-sided metalized film (10), and the second terminal (9) is in conductive contact with the second metalized surface (5) of each double-sided metalized film (10).
2. The multiple-film offset stacked folded capacitor core of claim 1, wherein: the two adjacent double-sided metalized films (10) are aligned with each other.
3. The multiple-film offset stacked folded capacitor core of claim 1, wherein: the two adjacent double-sided metalized films (10) are staggered with a certain distance from left to right, but the first metalized surface (2) and the second metalized surface (5) after the folding of each double-sided metalized film (10) are separated from each other.
4. The multiple-film offset stacked folded capacitor core of claim 1, wherein: the sheet resistance of the first (2) or second (5) metallized surface is greater than 10 ohms.
5. The multiple-film offset stacked folded capacitor core 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.
6. The multiple-film offset stacked folded capacitor core as claimed in claim 5, wherein: when the first metalized surface (2) or the second metalized surface (5) is made of aluminum, the sheet resistance is more than 30 ohms; when the material of the first metalized surface (2) or the second metalized surface (5) is zinc-aluminum alloy, the sheet resistance is more than 60 ohms.
7. The multiple-film offset stacked folded capacitor core of claim 1, wherein: 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.
8. The multiple-film offset stacked folded capacitor core of claim 1, wherein: the first metallized surface (2) and/or the second metallized surface (5) are T-shaped or net-shaped.
9. The multiple-film offset stacked folded capacitor core 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777358.3U CN209980995U (en) | 2019-05-27 | 2019-05-27 | Multi-film staggered superposed folding capacitor core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777358.3U CN209980995U (en) | 2019-05-27 | 2019-05-27 | Multi-film staggered superposed folding capacitor core |
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| CN209980995U true CN209980995U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141537A (en) * | 2021-11-08 | 2022-03-04 | 常州晟威机电有限公司 | Demetalization mode of high-voltage capacitor |
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2019
- 2019-05-27 CN CN201920777358.3U patent/CN209980995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141537A (en) * | 2021-11-08 | 2022-03-04 | 常州晟威机电有限公司 | Demetalization mode of high-voltage capacitor |
| CN114141537B (en) * | 2021-11-08 | 2023-03-28 | 常州晟威机电股份有限公司 | Demetalization method of high-voltage capacitor |
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