CN112038090A - Metallized film with metal spraying surface not easy to fall off and preparation method thereof - Google Patents
Metallized film with metal spraying surface not easy to fall off and preparation method thereof Download PDFInfo
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- CN112038090A CN112038090A CN202010933381.4A CN202010933381A CN112038090A CN 112038090 A CN112038090 A CN 112038090A CN 202010933381 A CN202010933381 A CN 202010933381A CN 112038090 A CN112038090 A CN 112038090A
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- Prior art keywords
- metal
- capacitor
- white
- insulating layer
- metal strip
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- 239000002184 metal Substances 0.000 title claims abstract description 95
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 95
- 238000005507 spraying Methods 0.000 title claims abstract description 33
- 239000011104 metalized film Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title description 5
- 239000003990 capacitor Substances 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- -1 polypropylene Polymers 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 14
- 238000007731 hot pressing Methods 0.000 claims description 9
- 239000010408 film Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007738 vacuum evaporation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000010931 gold Substances 0.000 abstract description 8
- 229910052737 gold Inorganic materials 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
- H01G4/306—Stacked capacitors made by thin film techniques
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention provides a metallized film with a gold spraying surface not easy to fall off, which comprises an insulating layer and a conducting layer made of polypropylene materials, and a capacitor winding core is obtained by winding; the width of the insulating layer is larger than that of the conducting layer, and white edges which are not covered by the conducting layer are formed on two sides of the insulating layer; metal strips are welded at two ends of the capacitor roll core and connected with the conducting layer, and grooves for accommodating the metal strips are formed in the white edges; the invention has the beneficial effects that: the white edges are arranged, so that gaps exist between two end faces of the capacitor roll core, metal steam can enter the gaps in the metal spraying process, and metal extending pieces are formed to connect the conductive layer and the metal spraying surface, so that the metal spraying surface is not easy to fall off; and the two end faces of the capacitor roll core are welded with the metal strips, so that the shape of the capacitor roll core is stabilized, the deformation in the use process is prevented from influencing the normal use of the capacitor, the metal spraying surface can be more firmly connected with the conductive layer, and the metal spraying surface is prevented from falling off.
Description
Technical Field
The invention relates to the technical field of capacitor processing, in particular to a metallized film with a metal spraying surface not easy to fall off and a preparation method thereof.
Background
A typical film capacitor is manufactured by stacking a metal foil such as aluminum as an electrode and a plastic film and winding them together. In addition, a thin film capacitor is manufactured by vacuum vapor depositing a thin metal layer on a plastic film as an electrode, which is called a metallized film. Thus, the thickness of the electrode foil can be omitted, and the volume of the capacitor per unit capacity can be reduced, so that the thin film capacitor can be easily made into a small-sized capacitor with large capacity.
The metal spraying surface of the existing capacitor is easy to fall off in the later installation and use processes, so that the safety performance of the capacitor is reduced, and the service life of the capacitor is shortened.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the metallized film with the metal spraying surface not easy to fall off.
The invention solves the technical problems through the following technical means:
the metallized film with the metal spraying surface not easy to fall off comprises an insulating layer and a conducting layer made of polypropylene materials, and the capacitor roll core is obtained by winding; the width of the insulating layer is larger than that of the conducting layer, and white edges which are not covered by the conducting layer are formed on two sides of the insulating layer; the two ends of the capacitor roll core are welded with metal strips, the metal strips are connected with the conducting layer, and the white edges are provided with grooves for accommodating the metal strips.
As an improvement of the technical scheme, each end face of the capacitor winding core is welded with three metal strips, and the three metal strips are intersected at the circle center of the end face and distributed in an annular array.
As an improvement of the above technical solution, a thickness of the white edge away from the conductive layer is smaller than a thickness of the white edge close to the conductive layer.
As an improvement of the technical scheme, the white edge is provided with a plurality of anti-slip grooves which are vertically crossed.
The preparation method of the metallized film with the gold spraying surface not easy to fall off comprises the following steps:
s1 white edge processing
Processing the white edges on two sides of the insulating layer by utilizing a pair of hot-pressing rollers with raised lines arranged in a vertical crossing manner on the surfaces, so that the cross section of each white edge is in an isosceles trapezoid shape, and a plurality of anti-skidding grooves are arranged in a vertical crossing manner on the surface of each white edge;
s2 plated metal film
Forming a conductive layer on the surface of the insulating layer by vacuum evaporation, and leaving white edges without the conductive layer on two sides of the insulating layer;
s3 winding into core
Winding the film prepared in the step S2 to obtain a capacitor winding core;
s4 Metal strip welding
Heating the metal strip, attaching the metal strip to one end face of the capacitor roll core, contacting the metal strip with the conductive layer, and welding the contact position of the metal strip and the conductive layer; sequentially operating all the metal strips, and welding the joints among the metal strips; after welding of one end face of the capacitor roll core is completed, the other end face is operated, and metal strips are welded at two ends of the capacitor roll core.
As an improvement of the technical scheme, the temperature of the hot pressing roller is set to be 110-115 ℃, and the pressure of the hot pressing roller on the white side is controlled to be 0.15-0.18 kg/cm2。
As an improvement of the technical scheme, the heating temperature of the metal strip is 200-310 ℃.
The invention has the beneficial effects that: the white edges are arranged on the two sides of the insulating layer, so that gaps exist between the two end faces of the capacitor roll core, metal steam can enter the gaps in the metal spraying process, and a metal extending sheet is formed to connect the conductive layer and the metal spraying surface, so that the metal spraying surface is not easy to fall off; and the two end faces of the capacitor roll core are welded with the metal strips, so that the shape of the capacitor roll core can be stabilized, the capacitor can be prevented from being deformed in the later use process to influence the normal use of the capacitor, the metal spraying surface can be connected with the conductive layer more firmly, and the metal spraying surface can be prevented from falling off.
Drawings
FIG. 1 is a schematic structural diagram of a capacitor winding core and a metal strip according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a metalized film according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a metalized film according to an embodiment of the present invention;
the capacitor comprises an insulating layer 1, a conductive layer 2, a white edge 3, a capacitor winding core 4, a metal strip 5, a groove 6 and an anti-skid groove 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
As shown in fig. 1, the metallized film with a gold-sprayed surface not easy to fall off in this embodiment includes an insulating layer 1 and a conductive layer 2 made of polypropylene, and is wound to obtain a capacitor roll core 4; the width of the insulating layer 1 is larger than that of the conducting layer 2, and white edges 3 which are not covered by the conducting layer 2 are formed on two sides of the insulating layer 1; the welding of the both ends of condenser core 4 has metal strip 5, metal strip 5 is connected with conducting layer 2, white limit 3 is provided with the recess 6 that holds metal strip 5 usefulness.
The white edges 3 are arranged on the two sides of the insulating layer 1, so that gaps exist between the two end faces of the capacitor roll core 4, metal steam can enter the gaps in the metal spraying process, and a metal extending sheet is formed to connect the conductive layer 2 and the metal spraying surface, so that the metal spraying surface is not easy to fall off; and two end welding at the condenser roll core 4 have metal strip 5, can stabilize the shape that the condenser rolled core 4, prevent to warp and influence the normal use of condenser in the later stage use, can also make the more firm that spouts gold face and conducting layer 2 be connected, prevent that the gold face that spouts from droing.
Each end face of the capacitor roll core 4 is welded with three metal strips 5, and the three metal strips 5 are intersected at the center of the end face and distributed in an annular array; make metal spraying surface and capacitor roll up more firm that core 4 is connected, the atress is more even, prevents that the condition that the corner splits from appearing.
The thickness of the white edge 3 far away from the conductive layer 2 is smaller than that of the white edge close to the conductive layer 2; in the process of metal spraying, metal vapor enters the gap in the process of metal spraying, and a metal extending sheet is formed to connect the conductive layer 2 and the metal spraying surface, so that the metal spraying surface is not easy to fall off.
The white edge 3 is provided with a plurality of anti-skidding grooves 7 which are vertically crossed, and can form an annular convex strip on the extending sheet to increase the friction force between the extending sheet and the insulating layer 1, so that the gold spraying surface is prevented from falling off, and meanwhile, in the gold spraying process, metal steam can be rapidly led into the inside from the anti-skidding grooves 7 to be in contact with the conducting layer 2, so that the formation of the extending sheet is facilitated, and the connection stability of the gold spraying surface and the conducting layer 2 is enhanced.
Example 2
The preparation method of the metallized film with the gold spraying surface not easy to fall off comprises the following steps:
s1 white edge processing
Processing the white edges 3 on two sides of the insulating layer 1 by utilizing a pair of hot-pressing rollers with raised lines arranged in a vertical crossing manner on the surfaces, so that the cross sections of the white edges 3 are isosceles trapezoids, and a plurality of anti-skidding grooves 7 are formed in the surfaces of the white edges 3 in a vertical crossing manner;
s2 plated metal film
Forming a conducting layer 2 on the surface of the insulating layer 1 by vacuum evaporation, and leaving white edges 3 without the conducting layer 2 on two sides of the insulating layer 1;
s3 winding into core
Winding the film prepared in the step S2 to obtain a capacitor roll core 4;
s4 Metal strip welding
Heating the metal strip 5, attaching the metal strip to one end face of the capacitor roll core 4, enabling the metal strip 5 to be in contact with the conductive layer 2, and welding the contact position of the metal strip 5 and the conductive layer 2; sequentially operating all the metal strips 5 and welding the joints between the metal strips 5; after welding of one end face of the capacitor roll core 4 is completed, the other end face is operated, and metal strips 5 are welded to two ends of the capacitor roll core 4.
The white edges 3 are operated by the pair of hot-pressing rollers, so that the cross sections of the white edges are isosceles trapezoids, and metal steam can enter gaps conveniently during metal spraying.
The temperature of the hot-pressing roller is set to be 110-115 ℃, and the pressure of the hot-pressing roller on the white edge 3 is controlled to be 0.15-0.18 kg/cm2。
The heating temperature of the metal strip 5 is 200-310 ℃.
The heat distortion temperature of the polypropylene is 100 ℃, and the melting temperature is 200 ℃; when the hot press roller is used for processing the white edge 3, only the white edge 3 needs to be deformed, so that the temperature of the hot press roller is set to be 110-115 ℃, the effect can be achieved, the phenomenon that polypropylene is fused and bonded on the hot press roller due to overhigh temperature and the capacitor winding core 4 with excessive white edge deformation is scrapped is avoided, when the metal sheet 5 is connected with the conducting layer 2, the groove 6 needs to be fused on the white edge 3, the metal sheet 5 is in contact with the conducting layer 2, and the groove 6 can be fused on the white edge 3 to enable the metal sheet 5 to be in contact with the conducting layer 2 due to the temperature being set to be more than 200 ℃; if the temperature is too high, the white edge 3 can deform in a large area, gaps are uneven, and metal steam is not favorable for entering during metal spraying.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The metallized film with the metal spraying surface not easy to fall off comprises an insulating layer (1) and a conducting layer (2) which are made of polypropylene materials, and a capacitor roll core (4) is obtained by winding; the method is characterized in that: the width of the insulating layer (1) is larger than that of the conducting layer (2), and white edges (3) which are not covered by the conducting layer (2) are formed on two sides of the insulating layer (1); the welding of the both ends of condenser core (4) has metal strip (5), metal strip (5) are connected with conducting layer (2), white limit (3) are provided with recess (6) that hold metal strip (5) usefulness.
2. The metallized film of claim 1, wherein said metal-sprayed surface is not susceptible to peeling off, and is characterized in that: each end face of the capacitor roll core (4) is welded by three metal strips (5), and the three metal strips (5) are intersected at the circle center of the end face and distributed in an annular array.
3. The metallized film of claim 1, wherein said metal-sprayed surface is not susceptible to peeling off, and is characterized in that: the thickness of the side, far away from the conductive layer (2), of the white edge (3) is smaller than that of the side, close to the conductive layer (2).
4. The metallized film of claim 1, wherein said metal-sprayed surface is not susceptible to peeling off, and is characterized in that: the white edge (3) is provided with a plurality of anti-skid grooves (7) which are vertically crossed.
5. The method for preparing a metallized film having a gold-sprayed surface that is less likely to peel off according to any one of claims 1 to 4, comprising: comprises the following steps of (a) carrying out,
s1 white edge processing
Processing the white edges (3) at two sides of the insulating layer (1) by utilizing a pair of hot-pressing rollers with raised lines arranged in a vertical crossing manner on the surfaces, so that the cross section of each white edge (3) is in an isosceles trapezoid shape, and a plurality of anti-skidding grooves (7) are arranged in a vertical crossing manner on the surfaces of the white edges (3);
s2 plated metal film
Forming a conductive layer (2) on the surface of the insulating layer (1) by vacuum evaporation, and leaving white edges (3) without the conductive layer (2) on two sides of the insulating layer (1);
s3 winding into core
Winding the film prepared in the S2 to obtain a capacitor winding core (4);
s4 Metal strip welding
Heating the metal strip (5), attaching the metal strip to one end face of the capacitor winding core (4), contacting the metal strip (5) with the conductive layer (2), and welding the contact position of the metal strip (5) and the conductive layer (2); sequentially operating all the metal strips (5) and welding the joints between the metal strips (5); after one end face of the capacitor winding core (4) is welded, the other end face is operated, so that metal strips (5) are welded at two ends of the capacitor winding core (4).
6. The method for preparing a metallized film with a gold-sprayed surface not easy to fall off according to claim 5, characterized in that: the temperature of the hot-pressing roller is set to be 110-115 ℃, and the pressure on the white edge (3) is controlled to be 0.15-0.18 kg/cm2。
7. The method for preparing a metallized film with a gold-sprayed surface not easy to fall off according to claim 5, characterized in that: the heating temperature of the metal strip (5) is 200-310 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933381.4A CN112038090A (en) | 2020-09-08 | 2020-09-08 | Metallized film with metal spraying surface not easy to fall off and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933381.4A CN112038090A (en) | 2020-09-08 | 2020-09-08 | Metallized film with metal spraying surface not easy to fall off and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112038090A true CN112038090A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010933381.4A Pending CN112038090A (en) | 2020-09-08 | 2020-09-08 | Metallized film with metal spraying surface not easy to fall off and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112038090A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936917A (en) * | 2021-09-18 | 2022-01-14 | 铜陵市超越电子有限公司 | Metallized film and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3519902A (en) * | 1969-04-02 | 1970-07-07 | Itt | Spiral plate capacitor |
| JPH01181409A (en) * | 1988-01-11 | 1989-07-19 | Toshiba Corp | Method and apparatus for winding metal strip |
| CN201465809U (en) * | 2009-07-22 | 2010-05-12 | 南京双登科技发展研究院有限公司 | Folded super capacitor electrode |
| JP2014086661A (en) * | 2012-10-26 | 2014-05-12 | Toyota Motor Corp | Metalization film capacitor |
| CN104218208A (en) * | 2014-07-31 | 2014-12-17 | 中天储能科技有限公司 | Full-lug current collecting disk |
| CN106449091A (en) * | 2016-09-29 | 2017-02-22 | 铜陵市超越电子有限公司 | Metallized film capable of preventing gold-spraying surface from falling off |
| CN206282734U (en) * | 2016-12-31 | 2017-06-27 | 广东顺德德帝机电设备有限公司 | One kind metallization is counter to stay side thin film capacitor |
| CN109243825A (en) * | 2018-09-30 | 2019-01-18 | 德力西电气有限公司 | A kind of metal metallized safety type film |
-
2020
- 2020-09-08 CN CN202010933381.4A patent/CN112038090A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3519902A (en) * | 1969-04-02 | 1970-07-07 | Itt | Spiral plate capacitor |
| JPH01181409A (en) * | 1988-01-11 | 1989-07-19 | Toshiba Corp | Method and apparatus for winding metal strip |
| CN201465809U (en) * | 2009-07-22 | 2010-05-12 | 南京双登科技发展研究院有限公司 | Folded super capacitor electrode |
| JP2014086661A (en) * | 2012-10-26 | 2014-05-12 | Toyota Motor Corp | Metalization film capacitor |
| CN104218208A (en) * | 2014-07-31 | 2014-12-17 | 中天储能科技有限公司 | Full-lug current collecting disk |
| CN106449091A (en) * | 2016-09-29 | 2017-02-22 | 铜陵市超越电子有限公司 | Metallized film capable of preventing gold-spraying surface from falling off |
| CN206282734U (en) * | 2016-12-31 | 2017-06-27 | 广东顺德德帝机电设备有限公司 | One kind metallization is counter to stay side thin film capacitor |
| CN109243825A (en) * | 2018-09-30 | 2019-01-18 | 德力西电气有限公司 | A kind of metal metallized safety type film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936917A (en) * | 2021-09-18 | 2022-01-14 | 铜陵市超越电子有限公司 | Metallized film and preparation method thereof |
| CN113936917B (en) * | 2021-09-18 | 2023-08-25 | 铜陵市超越电子有限公司 | Metallized film and preparation method thereof |
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Application publication date: 20201204 |
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