Metallized film and metallized film capacitor

Abstract

The utility model discloses a metallized film and a metallized film capacitor, and the metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film. The metal coating comprises continuous and repeated grids extending in the longitudinal direction, the grids are separated through transverse grid reserved edges, and the grids are communicated through fuses. Longitudinal grid margins forming the grid are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged to be rectangles with at least one long edge concave inwards. According to the utility model, the effective area of the capacitor can be increased, the utilization rate of the metallized film is improved, and the evaporation speed of the metallized film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a metallized film and a metallized film capacitor. Background Art

[0002] In the related technology, with the rapid development of metallized film capacitors, the safety requirements for metallized film capacitors are getting higher and higher. The safety film in the metallized film is widely used in metallized safety film capacitors in various applications. The safety film is composed of a continuous and repeated grid extending longitudinally with fuses connected. The grids are distinguished by transverse grid margins. The longitudinal grid margins constituting the grids are generally set to be rectangular, and fuses are arranged between the longitudinal grid margins. The longitudinal grid margins are formed by applying shielding oil on the film, and the metal layer cannot be plated due to the shielding oil when evaporating.

[0003] First, because there is no metal coating on the vertical grid edge, no effective capacitor can be formed, which will inevitably lead to a decrease in the utilization rate of the metallized film. Secondly, the more shielding oil needs to be applied on the safety film, the slower the evaporation speed of the metallized film, which reduces the production efficiency of the evaporation process. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one purpose of the utility model is to provide a metallized film to increase the effective area of ​​the capacitor, improve the utilization rate of the metallized film, and at the same time increase the evaporation speed of the metallized film.

[0005] The second purpose of the utility model is to provide a metallized film capacitor to increase the effective area of ​​the capacitor, improve the utilization rate of the metallized film, and at the same time increase the evaporation speed of the metallized film.

[0006] To achieve the above-mentioned purpose, the first aspect of the utility model provides a metallized film, which is composed of a dielectric film and a metal coating arranged on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged as a rectangle with at least one long side concave.

[0007] According to a metallized film of an embodiment of the utility model, the longitudinal grid margins constituting the grid are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged as a rectangle with at least one long side concave, that is, they are arranged as a semi-I-shape or an I-shape, thereby ensuring that the fuse length remains unchanged, does not affect the grid performance, increases the effective area of ​​the capacitor, and improves the utilization rate of the metallized film; the area of ​​the longitudinal grid margins is reduced, the consumption of the required shielding oil coating is reduced, and the evaporation speed of the metallized film is improved.

[0008] In addition, the metallized film according to the above embodiment of the utility model may also have the following additional technical features:

[0009] Optionally, the metallized film has a margin along one side in the longitudinal direction, and the other side opposite to the margin is a longitudinal electrode, and the longitudinal grid margin is located on the other side of the metallized film.

[0010] Optionally, the metallized film has at least two rows of grids that are continuously repeated and extend in the longitudinal direction, the metallized film has margins on a first longitudinal side and a second longitudinal side opposite to the first side, and the longitudinal grid margins are located in the middle of the metallized film.

[0011] Optionally, the metallized film has at least three rows of grids that are continuously repeated and extend in the longitudinal direction, the first longitudinal side and the second side opposite to the first side of the metallized film are both longitudinal electrodes, and the longitudinal grid margins are provided on the first longitudinal side and the second side opposite to the first side of the metallized film.

[0012] To achieve the above-mentioned purpose, the second embodiment of the utility model proposes a metallized film capacitor, including a metallized film, wherein the metallized film is composed of a dielectric film and a metal coating arranged on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged as a rectangle with at least one long side concave.

[0013] A metallized film capacitor according to an embodiment of the utility model includes a metallized film. Since the longitudinal grid margins constituting the grid are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins. The longitudinal grid margins are arranged in a rectangle with at least one long side concave, that is, they are arranged in a semi-I shape or an I shape, thereby ensuring that the fuse length remains unchanged, does not affect the grid performance, increases the effective area of ​​the capacitor, and improves the utilization rate of the metallized film; the area of ​​the longitudinal grid margin is reduced, the consumption of the required shielding oil coating is reduced, and the evaporation speed of the metallized film is improved.

[0014] In addition, the metallized film capacitor according to the above embodiment of the utility model may also have the following additional technical features:

[0015] Optionally, the film capacitor is formed by stacking a first metallized film and a second metallized film in staggered layers;

[0016] The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave;

[0017] The structure of the second metallized film is the same as that of the first metallized film, and the second metallized film and the first metallized film are stacked in a mirror-symmetrical manner.

[0018] Specifically, one side of the first metallized film along the longitudinal direction is a margin, the other side opposite to the margin is a longitudinal electrode, and the longitudinal grid margin is located on the other side of the first metallized film.

[0019] Optionally, the film capacitor is formed by stacking a first metallized film and a second metallized film in staggered layers;

[0020] The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave;

[0021] The second metallized film consists of a dielectric film and a metal plating layer arranged on the dielectric film.

[0022] Specifically, the first metallized film has at least two rows of grids that are continuously repeated and extend in the longitudinal direction. The first metallized film has margins along a first longitudinal side and a second longitudinal side opposite to the first side. The longitudinal grid margins are located in the middle of the first metallized film.

[0023] Optionally, the film capacitor is formed by stacking a first metallized film and a second metallized film in staggered layers;

[0024] The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave;

[0025] The second metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film, and both longitudinal sides of the second metallized film are left margins.

[0026] Specifically, the first metallized film has at least three rows of grids that are continuously repeated and extend in the longitudinal direction. The first metallized film is provided with longitudinal electrodes along the first longitudinal side and the second side opposite to the first side. The first metallized film is provided with the longitudinal grid margins along the first longitudinal side and the second side opposite to the first side. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a capacitor in Embodiment 1 of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the metallized film of Example 1 of the utility model;

[0029] Figure 3 This is another structural schematic diagram of a capacitor according to Embodiment 1 of the utility model;

[0030] Figure 4 This is another schematic diagram of the structure of the metallized film of the first embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of a capacitor according to Embodiment 2 of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the metallized film of the second embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of a capacitor according to Embodiment 3 of the present utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the metallized film in Example 3 of the present utility model.

[0035] Description of symbols

[0036] Metallized film 10 , first metallized film 101 , second metallized film 102 , dielectric film 11 , metal plating 12 , grid 13 , transverse grid margin 14 , fuse 15 , longitudinal grid margin 16 , margin 17 , longitudinal electrode 18 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] The utility model defines the membrane width direction as the horizontal direction, and the corresponding gap is the horizontal grid margin. The direction orthogonal to the longitudinal direction is the longitudinal direction, and the corresponding gap is the longitudinal grid margin. The horizontal grid margins of each column are repeatedly arranged at equal intervals along the longitudinal direction, and intersect with the longitudinal grid margins to form longitudinal electrodes and grids; a vapor-deposited metal layer is arranged inside the longitudinal electrodes and the grids, and the margins are not provided with a vapor-deposited metal layer. The vapor-deposited metal arranged at the longitudinal grid margin and connecting the grid and the longitudinal electrode is a fuse, and the vapor-deposited metal arranged at the transverse grid margin and connecting the two grids is a fuse.

[0040] Embodiment 1

[0041] like Figures 1 to 4 As shown, a metallized film 10 of the first embodiment of the utility model is composed of a dielectric film 11 and a metal coating 12 arranged on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, and the fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0042] In this embodiment, one side of the metallized film 10 along the longitudinal direction is a margin 17 , the other side opposite to the margin 17 is a longitudinal electrode 18 , and the longitudinal grid margin 16 is located on the other side of the metallized film 10 .

[0043] A metallized film 10 according to an embodiment of the utility model has a longitudinal grid margin 16 constituting a grid 13 arranged at intervals along the longitudinal direction, a fuse 15 is arranged between the longitudinal grid margins 16, and the longitudinal grid margin 16 is arranged as a rectangle with at least one long side concave, that is, it is arranged as a semi-I-shape or an I-shape. Compared with the prior art in which the longitudinal grid margin 16 is arranged as a rectangle, its area is reduced, thereby ensuring that the length of the fuse 15 remains unchanged, without affecting the performance of the grid 13, while increasing the effective area of ​​the capacitor and improving the utilization rate of the metallized film 10; the area of ​​the longitudinal grid margin 16 is reduced, the consumption of the required shielding oil coating is reduced, and the evaporation speed of the metallized film 10 is improved.

[0044] like Figures 1 to 4 As shown, a metallized film capacitor of the first embodiment of the utility model includes a metallized film 10, wherein the metallized film 10 is composed of a dielectric film 11 and a metal coating 12 arranged on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, the fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0045] In this embodiment, the film capacitor is formed by stacking and rolling a first metallized film 101 and a second metallized film 102 in staggered layers. The first metallized film 101 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by a transverse grid margin 14, and the grids 13 are connected by a fuse 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, the fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0046] The structure of the second metallized film 102 is the same as that of the first metallized film 101. The second metallized film 102 and the first metallized film 101 are stacked in a mirror-symmetrical manner. Figure 1 and Figure 3 shown.

[0047] Specifically, Figure 2 and Figure 4 As shown, the first metallized film 101 has a margin 17 on one side along the longitudinal direction, and the other side opposite to the margin 17 is a longitudinal electrode 18, and the longitudinal grid margin 16 is located on the other side of the first metallized film 101. The lateral width of the longitudinal electrode 18 can be larger than the lateral width of the first metallized film 101, such as Figure 4 As shown, it can also be smaller, such as Figure 2 shown.

[0048] According to an embodiment of the utility model, a metallized film capacitor includes a metallized film 10. Since the longitudinal grid margins 16 constituting the grid 13 are arranged at intervals along the longitudinal direction, fuses 15 are arranged between the longitudinal grid margins 16. The longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave, that is, they are arranged as a semi-I-shape or an I-shape. Compared with the prior art in which the longitudinal grid margins 16 are arranged as a rectangle, their area is reduced, thereby ensuring that the length of the fuse 15 remains unchanged, without affecting the performance of the grid 13, while increasing the effective area of ​​the capacitor and improving the utilization rate of the metallized film 10; the area of ​​the longitudinal grid margins 16 is reduced, the consumption of the required shielding oil is reduced, and the evaporation speed of the metallized film 10 is improved.

[0049] Embodiment 2

[0050] like Figures 5 and 6 As shown, a metallized film 10 of the second embodiment of the utility model is composed of a dielectric film 11 and a metal coating 12 arranged on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, and fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0051] In this embodiment, the metallized film 10 has at least two rows of grids 13 extending in a longitudinal direction and being repeated continuously. The metallized film 10 has margins 17 along a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. The longitudinal grid margin 16 is located in the middle of the metallized film 10. Figure 6 shown.

[0052] A metallized film 10 according to an embodiment of the utility model has a longitudinal grid margin 16 constituting a grid 13 arranged at intervals along the longitudinal direction, a fuse 15 is arranged between the longitudinal grid margins 16, and the longitudinal grid margin 16 is arranged as a rectangle with at least one long side concave, that is, it is arranged as a semi-I-shape or an I-shape. Compared with the prior art in which the longitudinal grid margin 16 is arranged as a rectangle, its area is reduced, thereby ensuring that the length of the fuse 15 remains unchanged, without affecting the performance of the grid 13, while increasing the effective area of ​​the capacitor and improving the utilization rate of the metallized film 10; the area of ​​the longitudinal grid margin 16 is reduced, the consumption of the required shielding oil coating is reduced, and the evaporation speed of the metallized film 10 is improved.

[0053] like Figures 5 and 6As shown, a metallized film capacitor of the second embodiment of the utility model includes a metallized film 10, wherein the metallized film 10 is composed of a dielectric film 11 and a metal coating 12 arranged on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, the fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0054] In this embodiment, the film capacitor is formed by stacking and rolling a first metallized film 101 and a second metallized film 102 in staggered layers. The first metallized film 101 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by a transverse grid margin 14, and the grids 13 are connected by a fuse 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, and fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave. The second metallized film 102 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11.

[0055] Specifically, the first metallized film 101 has at least two rows of grids 13 extending in a longitudinal direction and being repeated continuously. The first metallized film 101 has margins 17 along a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. The longitudinal grid margin 16 is located in the middle of the first metallized film 101. Figure 6 shown.

[0056] Embodiment 3

[0057] like Figures 7 and 8 As shown, a metallized film 10 of embodiment 3 of the utility model is composed of a dielectric film 11 and a metal coating 12 arranged on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, and fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0058] In this embodiment, the metallized film 10 has at least three rows of grids 13 extending in a longitudinal direction and being repeated continuously. The metallized film 10 has longitudinal electrodes 18 on a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. The metallized film 10 has longitudinal grid margins 16 on a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. Figure 8 shown.

[0059] A metallized film 10 according to an embodiment of the utility model has a longitudinal grid margin 16 constituting a grid 13 arranged at intervals along the longitudinal direction, a fuse 15 is arranged between the longitudinal grid margins 16, and the longitudinal grid margin 16 is arranged as a rectangle with at least one long side concave, that is, it is arranged as a semi-I-shape or an I-shape. Compared with the prior art in which the longitudinal grid margin 16 is arranged as a rectangle, its area is reduced, thereby ensuring that the length of the fuse 15 remains unchanged, without affecting the performance of the grid 13, while increasing the effective area of ​​the capacitor and improving the utilization rate of the metallized film 10; the area of ​​the longitudinal grid margin 16 is reduced, the consumption of the required shielding oil coating is reduced, and the evaporation speed of the metallized film 10 is improved.

[0060] like Figures 7 and 8 As shown, a metallized film capacitor of Embodiment 3 of the present invention comprises a metallized film 10, wherein the metallized film 10 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11; the metal coating 12 comprises a continuous and repeated grid 13 extending in the longitudinal direction, wherein the grids 13 are separated by transverse grid margins 14, and the grids 13 are connected by fuses 15; longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave.

[0061] In this embodiment, the film capacitor is formed by stacking and rolling a first metallized film 101 and a second metallized film 102 with staggered edges. The first metallized film 101 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11; the metal coating 12 includes a continuous and repeated grid 13 extending in the longitudinal direction, the grids 13 are separated by a transverse grid margin 14, and the grids 13 are connected by a fuse 15; the longitudinal grid margins 16 constituting the grids 13 are arranged at intervals in the longitudinal direction, and fuses 15 are arranged between the longitudinal grid margins 16, and the longitudinal grid margins 16 are arranged as a rectangle with at least one long side concave. The second metallized film 102 is composed of a dielectric film 11 and a metal coating 12 disposed on the dielectric film 11, and the longitudinal sides of the second metallized film 102 are margins 17.

[0062] Specifically, the first metallized film 101 has at least three rows of grids 13 that are continuously repeated and extend in the longitudinal direction. The first metallized film 101 has longitudinal electrodes 18 along the first longitudinal side and the second side opposite to the first side. The first metallized film 101 has longitudinal grid margins 16 along the first longitudinal side and the second side opposite to the first side.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A metallized film, characterized in that: The metallized film is composed of a dielectric film and a metal coating arranged on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged as a rectangle with at least one long side concave.

2. A metallized film according to claim 1, characterized in that: The metallized film has a margin along one side in the longitudinal direction, and the other side opposite to the margin is a longitudinal electrode. The longitudinal grid margin is located on the other side of the metallized film.

3. A metallized film according to claim 1, characterized in that: The metallized film has at least two rows of grids that are continuously repeated and extend in the longitudinal direction. The metallized film has margins along a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. The longitudinal grid margin is located in the middle of the metallized film.

4. A metallized film according to claim 1, characterized in that: The metallized film has at least three rows of grids that are continuously repeated and extend in the longitudinal direction. The first longitudinal side and the second side opposite to the first side of the metallized film are both longitudinal electrodes. The metallized film is provided with the longitudinal grid margins along the first longitudinal side and the second side opposite to the first side.

5. A metallized film capacitor, characterized in that: It comprises a metallized film, which is composed of a dielectric film and a metal coating arranged on the dielectric film; the metal coating comprises a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at longitudinal intervals, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged as a rectangle with at least one long side concave.

6. A metallized film capacitor as claimed in claim 5, characterized in that: The film capacitor is formed by stacking a first metallized film and a second metallized film in a staggered manner. The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave; The structure of the second metallized film is the same as that of the first metallized film, and the second metallized film and the first metallized film are stacked in a mirror-symmetrical manner.

7. A metallized film capacitor as claimed in claim 6, characterized in that: The first metallized film has a margin along one side in the longitudinal direction, and the other side opposite to the margin is a longitudinal electrode. The longitudinal grid margin is located on the other side of the first metallized film.

8. A metallized film capacitor as claimed in claim 5, characterized in that: The film capacitor is formed by stacking a first metallized film and a second metallized film in a staggered manner. The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave; The second metallized film consists of a dielectric film and a metal plating layer arranged on the dielectric film.

9. A metallized film capacitor as claimed in claim 8, characterized in that: The first metallized film has at least two rows of grids that are continuously repeated and extend in the longitudinal direction. The first metallized film has margins along a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. The longitudinal grid margin is located in the middle of the first metallized film.

10. The metallized film capacitor according to claim 5, characterized in that: The film capacitor is formed by stacking a first metallized film and a second metallized film in a staggered manner. The first metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film; the metal coating includes a continuous and repeated grid extending in the longitudinal direction, the grids are separated by transverse grid margins, and the grids are connected by fuses; the longitudinal grid margins constituting the grids are arranged at intervals in the longitudinal direction, fuses are arranged between the longitudinal grid margins, and the longitudinal grid margins are arranged in a rectangular shape with at least one long side concave; The second metallized film is composed of a dielectric film and a metal coating disposed on the dielectric film, and both longitudinal sides of the second metallized film are left margins.

11. A metallized film capacitor as claimed in claim 10, characterized in that: The first metallized film has at least three rows of grids that are continuously repeated and extend in the longitudinal direction. The first metallized film has longitudinal electrodes along the first longitudinal side and the second side opposite to the first side. The first metallized film has longitudinal grid margins along the first longitudinal side and the second side opposite to the first side.

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