High-voltage capacitor film
By introducing a heat dissipation layer, through holes, connecting strips and bumps into the high-voltage capacitor film, the problem of poor heat dissipation is solved, and better heat dissipation effect and tensile resistance are achieved, ensuring the stable operation of the capacitor.
Patent Information
- Application Number
- CN202421555240.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The existing high-voltage capacitor film has poor heat dissipation, which causes the capacitor to rise rapidly during long-term use, affecting stability and possibly damage.
The heat dissipation layer and through-hole design are adopted, combined with connecting strips and bumps, to form a void to improve heat dissipation performance, and the tensile resistance is improved using graphite heat dissipation film and aluminum foil layer.
It effectively improves the heat dissipation performance of the capacitor film, avoids breakage, and ensures the normal operation of the capacitor.
Smart Images
Figure CN223193655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thin films, in particular to a high-voltage capacitor thin film. Background Technique
[0002] A capacitor refers to two conductors close to each other with a non-conductive insulating medium sandwiched in the middle. A thin-film capacitor uses metal foil as an electrode and winds it into a cylindrical structure after overlapping it with plastic films such as polyethylene terephthalate, polypropylene, polystyrene or polycarbonate from both ends.
[0003] The current high-voltage capacitor plastic film has poor heat dissipation. During long-term use of the capacitor, the internal temperature of the capacitor rises rapidly, which leads to a decrease in the stability of the capacitor and even causes damage to it, affecting its normal use. Content of the Utility Model
[0004] The utility model provides a high-voltage capacitor thin film. By setting a heat dissipation layer and through holes, the heat dissipation effect of the capacitor thin film can be improved. At the same time, by setting connecting strips and bumps, voids can be formed when the capacitor thin film is wound, so as to facilitate heat dissipation, and the overall heat dissipation performance can be improved again, ensuring the normal operation of the capacitor. In summary, the problems in the background technique are solved.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A high-voltage capacitor thin film includes a base layer. A high-temperature resistant coating is provided at the bottom of the base layer, and a connecting strip is provided at the bottom of the high-temperature resistant coating;
[0007] A metal layer is provided at the top of the base layer, a galvanized layer is provided at the top of the metal layer, a heat dissipation layer is provided at the top of the galvanized layer, a film coating layer is provided at the top of the heat dissipation layer, and bumps are provided at the top of the film coating layer.
[0008] As a further description of the above technical scheme:
[0009] The high-temperature resistant coating is polyphenylene.
[0010] As a further description of the above technical scheme:
[0011] The metal layer is an aluminum foil layer.
[0012] As a further description of the above technical scheme:
[0013] The heat dissipation layer is a graphite heat dissipation film, and through holes are formed on the surface of the heat dissipation layer.
[0014] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are:
[0015] In the present utility model, the heat dissipation layer and through holes provided can improve the heat dissipation effect of the capacitor film. At the same time, through the connecting strips and bumps provided, voids can be formed when the capacitor film is wound, facilitating heat dissipation, further improving the overall heat dissipation performance, and ensuring the normal operation of the capacitor. Brief Description of the Drawings
[0016] Figure 1 It is a schematic diagram of the structure of a high-voltage capacitor film.
[0017] Legend Explanation:
[0018] 1. Base layer; 2. Heat-resistant coating; 3. Connecting strip; 4. Metal layer; 5. Galvanized layer; 6. Heat dissipation layer; 7. Coated film layer; 8. Bump. Specific Embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.
[0020] Refer to Figure 1 , a high-voltage capacitor film, including a base layer 1, a heat-resistant coating 2 is provided at the bottom of the base layer 1, and a connecting strip 3 is provided at the bottom of the heat-resistant coating 2; a metal layer 4 is provided at the top of the base layer 1, and a galvanized layer 5 is provided at the top of the metal layer 4, a heat dissipation layer 6 is provided at the top of the galvanized layer 5, and a coated film layer 7 is provided at the top of the heat dissipation layer 6, and a bump 8 is provided at the top of the coated film layer 7. By providing the heat dissipation layer 6 and through holes, the heat dissipation effect of the film can be improved. At the same time, the bumps 8 and connecting strips 3 facilitate the formation of voids between them when the film is wound, facilitating heat dissipation and ensuring the heat dissipation performance of the capacitor. Moreover, the metal layer 4 and galvanized layer 5 can improve the tensile layer performance of the film, avoiding the phenomenon of fracture when the film is wound and affecting its normal use.
[0021] Furthermore, the heat-resistant coating 2 is polyphenylene, which has excellent toughness, high temperature resistance, heat oxidation resistance and creep resistance.
[0022] Furthermore, the metal layer 4 is an aluminum foil layer. By providing the aluminum foil layer and galvanized layer, the overall tensile layer performance of the film can be improved, avoiding fracture when it is wound.
[0023] Furthermore, the heat dissipation layer 6 is a graphite heat dissipation film, and through holes are provided on the surface of the heat dissipation layer 6. Due to the high thermal conductivity of graphite and the through holes, the heat of the device that dissipates heat can be quickly transferred out, thereby quickly achieving heat dissipation and ensuring the operation of the thin film capacitor.
[0024] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A high-voltage capacitor film comprising a base layer (1), characterized in that: The bottom of the base layer (1) is provided with a high-temperature resistant coating (2), and the bottom of the high-temperature resistant coating (2) is provided with a connecting strip (3); A metal layer (4) is provided on the top of the base layer (1), and a galvanized layer (5) is provided on the top of the metal layer (4), a heat dissipation layer (6) is provided on the top of the galvanized layer (5), and a coating layer (7) is provided on the top of the heat dissipation layer (6), and a convex point (8) is provided on the top of the coating layer (7).
2. The high-voltage capacitor film according to claim 1, characterized in that: The high temperature resistant coating (2) is polyphenylene.
3. The high-voltage capacitor film according to claim 1, characterized in that: The metal layer (4) is an aluminum foil layer.
4. The high-voltage capacitor film according to claim 1, wherein: The heat dissipation layer (6) is a graphite heat dissipation film, and a through hole is provided on the surface of the heat dissipation layer (6).