Composite combined cover plate with high safety and long service life

Abstract

The utility model discloses a composite combined cover plate with high safety and long service life, which relates to the technical field of cover plates, solves the problem of non-ideal protection effect on a capacitor combined cover plate, and comprises a combined cover plate body, the left side and the right side of the top of the combined cover plate body are respectively provided with an installation hole, and the inner surface of each installation hole is provided with a guide rod. The top of the combined cover plate body is provided with a first protective layer, the bottom of the combined cover plate body is provided with a second protective layer, the combined cover plate body, the mounting holes and the guide rods are arranged, so that a capacitor can be conveniently sealed, the capacitor can be conveniently connected, the first protective layer and the second protective layer are arranged, and the service life of the capacitor is prolonged. The top and the bottom of the combined cover plate body can be protected, and the overall performance of the combined cover plate body is improved, so that the service life of the combined cover plate body can be prolonged, and meanwhile, the safety of the capacitor in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cover plates, in particular to a high-safety and long-life composite cover plate. Background Art

[0002] With the development of the domestic power electronics industry, new energy sources such as SVG, photovoltaics, and wind power have developed very well. There are many manufacturers of these converters, and most of them use electrolytic capacitors. As the ripple current characteristics of film capacitors have advantages, converters have begun to use metallized film capacitors, and will gradually turn to film capacitors in the future. The market potential is large, and the combination cover is used to seal the capacitor and also carries the connection of the capacitor. Its role is particularly important. Although some of the capacitor combination covers currently used can meet the normal use requirements of capacitors, they still have certain defects in actual use. For example, the protective effect of the capacitor combination cover currently used is not ideal. During long-term use, the capacitor is easily damaged by external influences, which affects the service life of the capacitor cover and needs to be improved. Therefore, a high-safety and long-life composite combination cover is proposed. Utility Model Content

[0003] In order to improve the problem of unsatisfactory protective effect of a capacitor combination cover, the utility model provides a high-safety and long-life composite combination cover.

[0004] The utility model provides a high-safety and long-life composite cover plate, which adopts the following technical solutions:

[0005] A high-safety, long-life composite composite cover plate comprises a composite cover plate body, wherein mounting holes are provided on both the left and right sides of the top of the composite cover plate body, guide rods are installed on the inner surfaces of the mounting holes, a first protective layer is provided on the top of the composite cover plate body, and a second protective layer is provided on the bottom of the composite cover plate body;

[0006] The first protective layer includes an anti-rust layer, a high temperature resistant layer and a wear-resistant insulating layer;

[0007] The second protective layer includes an anti-corrosion layer and a waterproof layer.

[0008] By adopting the above technical solution, the top and bottom of the combined cover body can be protected, and the overall performance of the combined cover body can be improved, thereby increasing the service life of the combined cover body and improving the safety of the capacitor during use.

[0009] Optionally, the anti-rust layer is arranged on the top of the combined cover body, the high-temperature resistant layer is arranged on the top of the anti-rust layer, and the wear-resistant insulating layer is arranged on the top of the high-temperature resistant layer.

[0010] Optionally, the anti-corrosion layer is arranged at the bottom of the combined cover body, and the waterproof layer is arranged at the bottom of the anti-corrosion layer.

[0011] Optionally, a limit ring is fixedly connected to the top of the outer surface of the guide rod, and the bottom of the limit ring is tightly fitted with the top of the combined cover body.

[0012] By adopting the above technical solution, the top of the guide rod can be limited.

[0013] Optionally, the bottom of the outer surface of the guide rod is threadedly connected to a limit nut, and the top of the limit nut is tightly fitted with the bottom of the combined cover body.

[0014] By adopting the above technical solution, the guide rod can be installed and fixed.

[0015] Optionally, the anti-rust layer is an anti-rust paint coating, the high-temperature resistant layer is a fluorocarbon resin coating, and the wear-resistant insulating layer is a polytetrafluoroethylene coating.

[0016] Optionally, the anti-corrosion layer is an epoxy resin coating, and the waterproof layer is a polyurethane coating. In summary, the present invention has the following beneficial effects:

[0017] The utility model provides a combined cover body, mounting holes and guide rods, which can facilitate the sealing of the capacitor and the connection of the capacitor. By providing a first protective layer and a second protective layer, the top and bottom of the combined cover body can be protected, thereby improving the overall performance of the combined cover body, thereby increasing the service life of the combined cover body and improving the safety of the capacitor during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0020] Figure 3 It is a partial cross-sectional view of the first protective layer structure of the utility model;

[0021] Figure 4 This is a partial cross-sectional view of the second protective layer structure of the present invention.

[0022] In the figure: 1. Combined cover body; 2. Mounting hole; 3. Guide rod; 4. First protective layer; 401. Anti-rust layer; 402. High-temperature resistant layer; 403. Wear-resistant insulating layer; 5. Second protective layer; 501. Anti-corrosion layer; 502. Waterproof layer; 6. Limiting ring; 7. Limiting nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean 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, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Example:

[0027] Please refer to Figure 1-4 A high-safety and long-life composite cover plate includes a composite cover plate body 1, mounting holes 2 are provided on both the left and right sides of the top of the composite cover plate body 1, guide rods 3 are installed on the inner surface of the mounting holes 2, a first protective layer 4 is provided on the top of the composite cover plate body 1, and a second protective layer 5 is provided on the bottom of the composite cover plate body 1;

[0028] The first protective layer 4 includes an anti-rust layer 401, a high temperature resistant layer 402 and a wear-resistant insulating layer 403;

[0029] The second protective layer 5 includes an anti-corrosion layer 501 and a waterproof layer 502 .

[0030] As a technical optimization solution of the present invention, further, the anti-rust layer 401 is arranged on the top of the combined cover body 1, the high-temperature resistant layer 402 is arranged on the top of the anti-rust layer 401, and the wear-resistant insulating layer 403 is arranged on the top of the high-temperature resistant layer 402.

[0031] As a technical optimization solution of the present invention, further, the anti-corrosion layer 501 is arranged at the bottom of the combined cover body 1, and the waterproof layer 502 is arranged at the bottom of the anti-corrosion layer 501.

[0032] As a technical optimization solution of the present invention, further, the top of the outer surface of the guide rod 3 is fixedly connected to a limit ring 6, and the bottom of the limit ring 6 is tightly fitted with the top of the combined cover body 1.

[0033] As a technical optimization solution of the present invention, further, the bottom of the outer surface of the guide rod 3 is threadedly connected to a limiting nut 7, and the top of the limiting nut 7 is tightly fitted with the bottom of the combined cover body 1.

[0034] As a technical optimization solution of the present invention, further, the anti-rust layer 401 is an anti-rust paint coating. Anti-rust paint is a coating that can protect the metal surface from chemical or electrochemical corrosion of the atmosphere, seawater, etc., and can effectively prevent the surface of the combined cover body 1 from corrosion and rust. The high-temperature resistant layer 402 is a fluorocarbon resin coating. Fluorocarbon resin has good heat resistance, chemical resistance, cold resistance and low-temperature flexibility. The wear-resistant insulating layer 403 is a polytetrafluoroethylene coating. Polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing, high lubricity and non-stickiness, electrical insulation and good wear resistance.

[0035] As a technical optimization solution of the present invention, further, the anti-corrosion layer 501 is an epoxy resin coating. Epoxy resin has excellent chemical resistance, especially alkali resistance, and also has good heat resistance and electrical insulation. The waterproof layer 502 is a polyurethane coating. Polyurethane has excellent thermal insulation performance, chemical resistance, easy processing, and good waterproof performance.

[0036] In this embodiment: by providing the combined cover body 1, the mounting hole 2 and the guide rod 3, it is possible to facilitate sealing of the capacitor and also facilitate connection of the capacitor; by providing the first protective layer 4 and the second protective layer 5, the top and bottom of the combined cover body 1 can be protected, thereby improving the overall performance of the combined cover body 1, thereby improving the service life of the combined cover body 1 and improving the safety of the capacitor during use; by providing the limiting ring 6, the top of the guide rod 3 can be limited; by providing the limiting nut 7, the guide rod 3 can be easily installed and fixed, and it is also convenient to disassemble and replace the guide rod 3.

[0037] The implementation principle of the present utility model is as follows: when in use, the guide rod 3 is inserted into the mounting hole 2, and the limiting nut 7 is rotated from the bottom of the guide rod 3 to the guide rod 3, so that the limiting nut 7 contacts the combined cover body 1, and the guide rod 3 is installed and fixed. Then the combined cover body 1 is installed on the capacitor to seal the capacitor. During use, the bottom of the combined cover body 1 is protected by the second protective layer 5, wherein the anti-corrosion layer 501 can improve the anti-corrosion layer performance of the bottom of the combined cover body 1, and the waterproof layer 502 can improve the waterproof performance of the bottom of the combined cover body 1. The top of the combined cover body 1 is protected by the first protective layer 4, wherein the anti-rust layer 401 can improve the anti-rust performance of the top of the combined cover body 1, and the high-temperature resistant layer 402 can improve the high-temperature resistance of the surface of the combined cover body 1, and the wear-resistant insulating layer 403 can improve the wear-resistant insulating performance of the surface of the combined cover body 1. The above structure can improve the overall performance of the combined cover body 1, thereby improving the service life of the combined cover body 1 and improving the safety of the capacitor during use.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-safety and long-life composite cover plate, comprising a composite cover plate body (1), characterized in that: Mounting holes (2) are provided on both left and right sides of the top of the combined cover plate body (1); guide rods (3) are installed on the inner surfaces of the mounting holes (2); a first protective layer (4) is provided on the top of the combined cover plate body (1); and a second protective layer (5) is provided on the bottom of the combined cover plate body (1); The first protective layer (4) comprises an anti-rust layer (401), a high temperature resistant layer (402) and a wear-resistant insulating layer (403); The second protective layer (5) comprises an anti-corrosion layer (501) and a waterproof layer (502).

2. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The anti-rust layer (401) is arranged on the top of the combined cover plate body (1), the high-temperature resistant layer (402) is arranged on the top of the anti-rust layer (401), and the wear-resistant insulating layer (403) is arranged on the top of the high-temperature resistant layer (402).

3. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The anti-corrosion layer (501) is arranged at the bottom of the combined cover plate body (1), and the waterproof layer (502) is arranged at the bottom of the anti-corrosion layer (501).

4. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The top of the outer surface of the guide rod (3) is fixedly connected to a limiting ring (6), and the bottom of the limiting ring (6) is tightly fitted with the top of the combined cover plate body (1).

5. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The bottom of the outer surface of the guide rod (3) is threadedly connected to a limiting nut (7), and the top of the limiting nut (7) is tightly fitted with the bottom of the combined cover plate body (1).

6. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The anti-rust layer (401) is an anti-rust paint coating, the high-temperature resistant layer (402) is a fluorocarbon resin coating, and the wear-resistant insulating layer (403) is a polytetrafluoroethylene coating.

7. The high-safety and long-life composite cover plate according to claim 1, characterized in that: The anti-corrosion layer (501) is an epoxy resin coating, and the waterproof layer (502) is a polyurethane coating.

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