Metallized film for medium-high frequency voltage-withstanding capacitor

Abstract

The utility model relates to the technical field of metalized films, and discloses a metalized film for a medium-high frequency voltage-withstanding capacitor, which comprises a main body mechanism and an auxiliary ventilation mechanism, the auxiliary ventilation mechanism is positioned below the main body mechanism, and the main body mechanism comprises a film main body, a ventilation layer, a heat insulation layer, reinforcing ribs and a composite layer, the breathable layer is fixedly arranged at the uppermost end of the inner side of the film body, the heat insulation layer is fixedly arranged at the lower end of the breathable layer, the reinforcing ribs are fixedly arranged at the lower end of the heat insulation layer, and the composite layer is fixedly arranged at the lower ends of the reinforcing ribs. According to the metalized film for the medium-high frequency voltage-withstanding capacitor, through the use of the main body mechanism, the ventilation can be better realized through the use of the ventilation layer when the metalized film is used, through the use of the heat insulation layer, the film can better isolate heat transfer, and through the use of the gold-plated film, the use effect of the metalized film is better; and the polypropylene film is used, so that the appearance is transparent and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of metallized films, in particular to a metallized film for medium and high frequency withstand voltage capacitors. Background Technique

[0002] With the development of the times, as the requirements for the use of capacitors are getting higher and higher, in some occasions, the requirements for the over-current capacity of capacitors are also getting higher and higher, and the volume requirements are getting smaller and smaller. Due to the limitation of the coating thickness of traditional metallized capacitors, the current-carrying capacity of a single-layer metal coating can no longer meet the use requirements. Capacitors made of metal aluminum foil have a large volume and a decrease in withstand voltage, and also cannot meet the use requirements.

[0003] The existing metallized film for medium and high frequency withstand voltage capacitors has a poor air permeability effect during use, making it more inconvenient during use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a metallized film for medium and high frequency withstand voltage capacitors to solve the problem of poor air permeability effect during use and being more inconvenient during use as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A metallized film for medium and high frequency withstand voltage capacitors, including a main body mechanism and an auxiliary air permeability mechanism. The auxiliary air permeability mechanism is located below the main body mechanism. The main body mechanism includes a film main body, an air permeability layer, a heat insulation layer, a reinforcing rib, and a composite layer. The air permeability layer is fixedly arranged at the uppermost end inside the film main body. The heat insulation layer is fixedly arranged below the air permeability layer. The reinforcing rib is fixedly arranged below the heat insulation layer. The composite layer is fixedly arranged below the reinforcing rib.

[0006] Preferably, the main body mechanism further includes an adhesion layer, a wear-resistant layer, and a gold-plated film. The adhesion layer is fixedly arranged below the composite layer. The wear-resistant layer is fixedly arranged below the adhesion layer. The gold-plated film is fixedly arranged below the wear-resistant layer. The adhesion layer is located inside the film main body. Through the use of the adhesion layer and the composite layer, the layers are better connected and fixed together. Through the use of the wear-resistant layer, the film is more wear-resistant. Through the use of the gold-plated film, it can conduct electricity better.

[0007] Preferably, the main body mechanism further includes a protective film, a polypropylene film, and an insulating film. The protective film is fixedly arranged below the gold-plated film. The polypropylene film is fixedly arranged below the protective film. The insulating film is fixedly arranged below the polypropylene film. Through the use of the protective film, the internal capacitor can be better protected. Through the use of the polypropylene film, the appearance is transparent and light, which is convenient for use. Through the use of the insulating film, the insulation effect is improved.

[0008] Preferably, the auxiliary air-permeable mechanism includes a polymer air-permeable membrane, a temperature-resistant layer, a waterproof layer, an insulating base film, a zinc thickening layer, an insulating dielectric layer film, an organic film, a first aluminum film layer, and a second aluminum film layer. The polymer air-permeable membrane is fixedly arranged below the composite layer. The polymer air-permeable membrane is located at the lower end of the insulating film. The temperature-resistant layer is fixedly arranged below the polymer air-permeable membrane. By using the polymer air-permeable membrane, its air-permeable effect is further improved. By using the temperature-resistant layer, its temperature resistance is improved, and it can better withstand temperature changes.

[0009] Preferably, the waterproof layer is fixedly arranged below the temperature-resistant layer, and the insulating base film is fixedly arranged below the waterproof layer. By using the waterproof layer, its waterproof effect is better. By using the insulating base film, its insulation property is improved.

[0010] Preferably, the zinc thickening layer is fixedly arranged below the insulating base film, and the insulating dielectric layer film is fixedly arranged below the zinc thickening layer. By using the zinc thickening layer, it is a surface treatment method of plating a layer of zinc on the surface of other materials to play roles such as beauty and rust prevention. By using the insulating dielectric layer film, substances that are not good at conducting current are called insulators. Insulators are also called dielectrics. Dielectrics are insulating dielectrics, and their resistivity is extremely high.

[0011] Preferably, the organic film is fixedly arranged below the insulating dielectric layer film, the first aluminum film layer is fixedly arranged below the organic film, and the second aluminum film layer is fixedly arranged below the first aluminum film layer. By using the organic film, it can be more fitting. By using the first aluminum film layer and the second aluminum film layer, it can prevent further oxidation of aluminum.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. For the metallized film used in this medium and high frequency withstand voltage capacitor, through the use of the main body mechanism, during use, through the use of the air-permeable layer, it can better breathe. Through the use of the heat-insulating layer, the film can better isolate the transfer of heat. Through the use of the gold-plated film, the use effect of the metallized film is better. Through the use of the polypropylene film, its appearance is transparent and light, which is convenient for use;

[0014] 2. For the metallized film used in this medium and high frequency withstand voltage capacitor, through the use of the auxiliary air-permeable mechanism, during use, through the use of the polymer air-permeable membrane, its air-permeable effect is further improved. Through the use of the insulating base film, its insulation property is better. Through the use of the organic film, it can be more fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model;

[0016] Figure 2 Schematic diagram of the three-dimensional detailed structure of the adhesion layer of the present utility model;

[0017] Figure 3 Schematic diagram of the detailed cross-sectional structure of the insulating dielectric layer film of the present utility model;

[0018] Figure 4 Schematic diagram of the detailed cross-sectional structure of the breathable layer of the present utility model.

[0019] In the figure: 1. Main body mechanism; 101. Film main body; 102. Breathable layer; 103. Heat insulation layer; 104. Reinforcing rib; 105. Composite layer; 106. Adhesion layer; 107. Wear-resistant layer; 108. Gold-plated film; 109. Protective film; 110. Polypropylene film; 111. Insulating film; 2. Auxiliary breathable mechanism; 201. Polymer breathable film; 202. Temperature-resistant layer; 203. Waterproof layer; 204. Insulating base film; 205. Zinc thickening layer; 206. Insulating dielectric layer film; 207. Organic film; 208. First aluminum film layer; 209. Second aluminum film layer. Specific embodiments

[0020] 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 creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a metallized film for medium and high frequency withstand voltage capacitors, including a main body mechanism 1 and an auxiliary breathable mechanism 2. The auxiliary breathable mechanism 2 is located below the main body mechanism 1. The main body mechanism 1 includes a film main body 101, a breathable layer 102, a heat insulation layer 103, a reinforcing rib 104 and a composite layer 105. The breathable layer 102 is fixedly arranged at the uppermost end inside the film main body 101. The heat insulation layer 103 is fixedly arranged at the lower end of the breathable layer 102. The reinforcing rib 104 is fixedly arranged at the lower end of the heat insulation layer 103. The composite layer 105 is fixedly arranged at the lower end of the reinforcing rib 104.

[0022] The main body mechanism 1 further includes an adhesion layer 106, a wear-resistant layer 107, and a gold-plated thin film 108. The adhesion layer 106 is fixedly arranged at the lower end of the composite layer 105. The wear-resistant layer 107 is fixedly arranged at the lower end of the adhesion layer 106. The gold-plated thin film 108 is fixedly arranged at the lower end of the wear-resistant layer 107. The adhesion layer 106 is located inside the film main body 101. By using the adhesion layer 106 and the composite layer 105, the layers are better connected and fixed together. By using the wear-resistant layer 107, the film becomes more wear-resistant. By using the gold-plated thin film 108, it can conduct electricity better. The main body mechanism 1 further includes a protective film 109, a polypropylene film 110, and an insulating film 111. The protective film 109 is fixedly arranged at the lower end of the gold-plated thin film 108. The polypropylene film 110 is fixedly arranged at the lower end of the protective film 109. The insulating film 111 is fixedly arranged at the lower end of the polypropylene film 110. By using the protective film 109, the capacitance inside can be better protected. By using the polypropylene film 110, the appearance is transparent, light, and convenient to use. By using the insulating film 111, the insulation effect is improved.

[0023] The auxiliary ventilation mechanism 2 includes a polymer ventilation film 201, a temperature-resistant layer 202, a waterproof layer 203, an insulating base film 204, a zinc thickening layer 205, an insulating dielectric layer thin film 206, an organic film 207, a first aluminum film layer 208, and a second aluminum film layer 209. The polymer ventilation film 201 is fixedly arranged below the composite layer 105. The polymer ventilation film 201 is located at the lower end of the insulating film 111. The temperature-resistant layer 202 is fixedly arranged at the lower end of the polymer ventilation film 201. By using the polymer ventilation film 201, the ventilation effect is further improved. By using the temperature-resistant layer 202, the temperature resistance is increased, and it can better withstand temperature changes. The waterproof layer 203 is fixedly arranged at the lower end of the temperature-resistant layer 202. The insulating base film 204 is fixedly arranged at the lower end of the waterproof layer 203. By using the waterproof layer 203, the waterproof effect is better. By using the insulating base film 204, the insulation property is improved. The zinc thickening layer 205 is fixedly arranged at the lower end of the insulating base film 204. The insulating dielectric layer thin film 206 is fixedly arranged at the lower end of the zinc thickening layer 205. By using the zinc thickening layer 205, a surface treatment method of plating a layer of zinc on the surface of other materials for aesthetic and rust-proof purposes is achieved. By using the insulating dielectric layer thin film 206, substances that are not good at conducting current are called insulators. Insulators are also called dielectrics. Dielectrics are insulating dielectrics, and their resistivity is extremely high. The organic film 207 is fixedly arranged at the lower end of the insulating dielectric layer thin film 206. The first aluminum film layer 208 is fixedly arranged at the lower end of the organic film 207. The second aluminum film layer 209 is fixedly arranged at the lower end of the first aluminum film layer 208. By using the organic film 207, it can fit better. By using the first aluminum film layer 208 and the second aluminum film layer 209, further oxidation of aluminum can be prevented.

[0024] Working principle: When the metallized film for medium and high frequency withstand voltage capacitors is needed, through the use of the breathable layer 102, its breathable effect is better; through the use of the heat insulation layer 103, its heat insulation property is better; through the use of the adhesion layer 106 and the composite layer 105, the layers are better connected and fixed together; through the use of the wear-resistant layer 107, the film is more wear-resistant; through the use of the gold-plated film 108, it can conduct electricity better; through the use of the protective film 109, it can better protect the capacitor inside; through the use of the polypropylene film 110, its appearance is transparent and light, which is convenient for use; through the use of the insulating film 111, its insulation effect is improved; through the use of the polymer breathable film 201, its breathable effect is further enhanced; through the use of the temperature-resistant layer 202, its temperature resistance is improved, and it can better withstand temperature changes; through the use of the waterproof layer 203, its waterproof effect is better; through the use of the insulating base film 204, its insulation property is improved; through the use of the zinc thickening layer 205, a surface treatment method of plating a layer of zinc on the surface of other materials to play roles such as beautification and rust prevention; through the use of the insulating dielectric layer film 206, substances that are not good at conducting current are called insulators, and insulators are also called dielectrics. Dielectrics are insulating dielectrics, and their resistivity is extremely high; through the use of the organic film 207, it can fit better; through the use of the first aluminum film layer 208 and the second aluminum film layer 209, it can prevent further oxidation of aluminum.

[0025] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Any simple modification or equivalent replacement of the technical solution of the present invention by those of ordinary skill in the art does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A metallized film for medium and high frequency withstand voltage capacitors, comprising a main body structure (1) and an auxiliary ventilation structure (2), characterized in that: The auxiliary ventilation mechanism (2) is located below the main mechanism (1); the main mechanism (1) comprises a film body (101), a ventilation layer (102), a heat insulating layer (103), a reinforcing rib (104) and a composite layer (105); the ventilation layer (102) is fixedly arranged at the uppermost end of the inner side of the film body (101); the heat insulating layer (103) is fixedly arranged at the lower end of the ventilation layer (102); the reinforcing rib (104) is fixedly arranged at the lower end of the heat insulating layer (103); and the composite layer (105) is fixedly arranged at the lower end of the reinforcing rib (104).

2. The metallized film for medium and high frequency withstand voltage capacitor according to claim 1, characterized in that: The main body structure (1) further comprises an adhesive layer (106), a wear-resistant layer (107) and a gold-plated film (108); the adhesive layer (106) is fixedly arranged at the lower end of the composite layer (105); the wear-resistant layer (107) is fixedly arranged at the lower end of the adhesive layer (106); the gold-plated film (108) is fixedly arranged at the lower end of the wear-resistant layer (107); and the adhesive layer (106) is located on the inner side of the film body (101).

3. The metallized film for medium and high frequency withstand voltage capacitor according to claim 2, characterized in that: The main body (1) further comprises a protective film (109), a polypropylene film (110) and an insulating film (111); the protective film (109) is fixedly arranged at the lower end of the gold-plated film (108), the polypropylene film (110) is fixedly arranged at the lower end of the protective film (109), and the insulating film (111) is fixedly arranged at the lower end of the polypropylene film (110).

4. The metallized film for medium and high frequency withstand voltage capacitor according to claim 3, characterized in that: The auxiliary ventilation mechanism (2) comprises a polymer breathable film (201), a heat-resistant layer (202), a waterproof layer (203), an insulating base film (204), a zinc thickening layer (205), an insulating medium layer film (206), an organic film (207), a first aluminum film layer (208) and a second aluminum film layer (209); the polymer breathable film (201) is fixedly arranged below the composite layer (105); the polymer breathable film (201) is located at the lower end of the insulating film (111); and the heat-resistant layer (202) is fixedly arranged at the lower end of the polymer breathable film (201).

5. The metallized film for medium and high frequency withstand voltage capacitor according to claim 4, characterized in that: The waterproof layer (203) is fixedly arranged at the lower end of the temperature-resistant layer (202), and the insulating base film (204) is fixedly arranged at the lower end of the waterproof layer (203).

6. The metallized film for medium and high frequency withstand voltage capacitor according to claim 5, characterized in that: The zinc thickening layer (205) is fixedly arranged at the lower end of the insulating base film (204), and the insulating dielectric layer film (206) is fixedly arranged at the lower end of the zinc thickening layer (205).

7. The metallized film for medium and high frequency withstand voltage capacitor according to claim 6, characterized in that: The organic film (207) is fixedly arranged at the lower end of the insulating dielectric layer film (206), the first aluminum film layer (208) is fixedly arranged at the lower end of the organic film (207), and the second aluminum film layer (209) is fixedly arranged at the lower end of the first aluminum film layer (208).

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