CN204668156U - A kind of capacitor two-sided metallization electrical membrane - Google Patents
A kind of capacitor two-sided metallization electrical membrane Download PDFInfo
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- CN204668156U CN204668156U CN201520453112.2U CN201520453112U CN204668156U CN 204668156 U CN204668156 U CN 204668156U CN 201520453112 U CN201520453112 U CN 201520453112U CN 204668156 U CN204668156 U CN 204668156U
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Abstract
The utility model discloses a kind of capacitor two-sided metallization electrical membrane, belong to electrical membrane technical field.Adopt high vacuum metal deposition technique, the metallic diaphragm obtained can be quite thin, and very even, and meanwhile, uniform metallic diaphragm is also the guarantee of good capacitive property, and after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.And, because the metallic diaphragm of evaporation is quite thin, the good planarization of thin film dielectric layer can be kept in evaporate process, effectively solve in prior art the technical problem being difficult to control thermal deformation.Capacitor two-sided metallization electrical membrane of the present utility model is made up of at the aluminium lamination of described PETG dielectric layer surface PETG dielectric layer and evaporation, described aluminium lamination spaced surface is provided with groove parallel to each other, and the thickness of described aluminium lamination is 2 ~ 3.5 μm.
Description
Technical field
The utility model belongs to electrical membrane technical field, relates to a kind of capacitor two-sided metallization electrical membrane.
Background technology
China successively introduces nearly hundred vacuum coating production lines from external, wherein in the majority with general filming equipment.At electrical membrane metallizing art, because coating process, separating and cutting process difficulty are large, rate of finished products is difficult to control, and domestic enterprise seldom sets foot in.The capacitor that such film makes, with advantages such as capacity are large, good stability, self-healing ability are strong, more and more dominates the market.Consider that electrical membrane increasing market is large, but be difficult to control due to electrical membrane thermal deformation, be very limited in actual applications.
Summary of the invention
Technical problem to be solved in the utility model is just to provide a kind of capacitor two-sided metallization electrical membrane, and thermal deformation can be well controlled, and stays limit precision high.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of capacitor two-sided metallization electrical membrane, be made up of at the aluminium lamination of described PETG dielectric layer surface PETG dielectric layer and evaporation, described aluminium lamination spaced surface is provided with groove parallel to each other, and the thickness of described aluminium lamination is 2 ~ 3.5 μm.
Wherein, PETG (Polyethylene terephthalate is called for short PET), resistance to creep, resistance to fatigue resistance, abrasion-resistant and good stability of the dimension, wear away little and hardness is high, have excellent toughness, electrical insulation capability is good, and temperature influence is little, nontoxic, weatherability, chemical proof good stability, water absorption rate is low, weak acid resistant and organic solvent, is quite desirable dielectric layer material.Adopt high vacuum metal deposition technique in the utility model, in high vacuum conditions, will be deposited metal material and be heated to and melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the metallic diaphragm obtained can be quite thin, and very even, meanwhile, uniform metallic diaphragm be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the metallic diaphragm of evaporation is quite thin, and, metallic diaphragm is provided with groove, can slight deformation adjusts in thermal deformation situation, be difficult to the technical problem controlling thermal deformation in fine solution prior art, the good planarization of thin film dielectric layer can be kept in evaporate process.
Preferably, the equal evaporation of upper and lower surface of described PETG dielectric layer has aluminium lamination.Form the two-sided metallization electrical membrane structure of A-B-A, thermal deformation can be well controlled, and stays limit precision high.
Preferably, described groove extends to PETG dielectric layer surface by aluminium lamination surface.Slight deformation can adjust in thermal deformation situation, the good planarization of thin film dielectric layer can be kept in evaporate process.
Preferably, the thickness of described aluminium lamination is 3 μm.
Preferably, the thickness of described PETG dielectric layer is 4.8 μm.
Compared with prior art, the utility model has the advantages that: capacitor two-sided metallization electrical membrane of the present utility model adopts high vacuum metal deposition technique, in high vacuum conditions, metal material will be deposited be heated to and melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the metallic diaphragm obtained can be quite thin, and very even, meanwhile, uniform metallic diaphragm be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the metallic diaphragm of evaporation is quite thin, and, metallic diaphragm is provided with groove, can slight deformation adjusts in thermal deformation situation, the good planarization of thin film dielectric layer can be kept in evaporate process, effectively solve in prior art the technical problem being difficult to control thermal deformation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is the structural representation of a kind of capacitor two-sided metallization of the utility model electrical membrane embodiment 1.
Embodiment
As shown in Figure 1, for capacitor two-sided metallization electrical membrane embodiment 1 of the present utility model, be made up of at the aluminium lamination 2 on described PETG dielectric layer 1 surface PETG dielectric layer 1 and evaporation, the equal evaporation of upper and lower surface of described PETG dielectric layer 1 has aluminium lamination 2.Described aluminium lamination 2 spaced surface is provided with groove 3 parallel to each other, and described groove 3 extends to PETG dielectric layer 1 surface by aluminium lamination 2 surface.The thickness of described PETG dielectric layer 1 is 4.8 μm.The thickness of described aluminium lamination 2 is 3 μm.
The capacitor two-sided metallization electrical membrane of the present embodiment adopts high vacuum metal deposition technique, in high vacuum conditions, to be deposited metal material to be heated to and to melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the aluminium lamination 2 obtained can be quite thin, and very even, meanwhile, uniform aluminium lamination 2 be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the aluminium lamination 2 of evaporation is quite thin, and, aluminium lamination 2 is provided with groove 3, can slight deformation adjust in thermal deformation situation, the good planarization of PETG dielectric layer 1 can be kept in evaporate process, effectively solve in prior art the technical problem being difficult to control thermal deformation.
Show through test, the condenser capacity made by capacitor two-sided metallization electrical membrane of the present utility model is large, stability good, self-healing ability is strong, and rate of finished products increases by 30 ~ 50% than metallization vapor-deposited film of the prior art.
The foregoing is only specific embodiment of the utility model, but technical characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (5)
1. a capacitor two-sided metallization electrical membrane, it is characterized in that: be made up of at the aluminium lamination (2) on described PETG dielectric layer (1) surface PETG dielectric layer (1) and evaporation, described aluminium lamination (2) spaced surface is provided with groove (3) parallel to each other, and the thickness of described aluminium lamination (2) is 2 ~ 3.5 μm.
2. a kind of capacitor two-sided metallization electrical membrane as claimed in claim 1, is characterized in that: the equal evaporation of upper and lower surface of described PETG dielectric layer (1) has aluminium lamination (2).
3. a kind of capacitor two-sided metallization electrical membrane as claimed in claim 2, is characterized in that: described groove (3) extends to PETG dielectric layer (1) surface by aluminium lamination (2) surface.
4. a kind of capacitor two-sided metallization electrical membrane as claimed in claim 1, is characterized in that: the thickness of described aluminium lamination (2) is 3 μm.
5. a kind of capacitor two-sided metallization electrical membrane as described in Claims 1-4 any one, is characterized in that: the thickness of described PETG dielectric layer (1) is 4.8 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520453112.2U CN204668156U (en) | 2015-06-25 | 2015-06-25 | A kind of capacitor two-sided metallization electrical membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520453112.2U CN204668156U (en) | 2015-06-25 | 2015-06-25 | A kind of capacitor two-sided metallization electrical membrane |
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| CN204668156U true CN204668156U (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900403A (en) * | 2015-06-25 | 2015-09-09 | 浙江七星电容器有限公司 | Double-faced metalized electrical membrane for capacitor |
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2015
- 2015-06-25 CN CN201520453112.2U patent/CN204668156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900403A (en) * | 2015-06-25 | 2015-09-09 | 浙江七星电容器有限公司 | Double-faced metalized electrical membrane for capacitor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
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Address after: 313117 No. 50 Development Avenue, Meishan Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Qixing Electronics Co., Ltd. Address before: 313119 No. 50 Development Avenue, Huaikan Township Industrial District, Changxing County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Qixing Capacitor Co.,Ltd. |