Thin film capacitor with moisture-proof structure
By designing a double moisture-proof film and protective shell structure on the film capacitor, the problem of poor moisture-proof performance is solved, achieving effective moisture protection and wire protection, and improving the disassembly and durability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-03
AI Technical Summary
Existing film capacitors have poor moisture resistance, which allows moisture to easily enter the capacitor and affect its normal operation.
It adopts a dual moisture-proof membrane structure and protective shell design, including first and second moisture-proof membranes on the outside of the outer shell, as well as first and second protective shells. It can be quickly disassembled and assembled using double-ended screws and locking nuts, and the wires are protected by protective sleeves.
It achieves dual moisture protection, preventing moisture from entering the interior, protecting the outer shell from deformation, preventing wire wear, and facilitating quick disassembly and assembly.
Smart Images
Figure CN223967124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thin film capacitor technology, specifically a thin film capacitor with a moisture-proof structure. Background Technology
[0002] A film capacitor is a type of capacitor that uses a plastic film as its dielectric. Depending on the dielectric material, capacitors can be classified into various types. Their main function is to store charge and to isolate signals and regulate frequency in circuits.
[0003] The existing film capacitor design has poor external moisture protection, which makes it easy for moisture to enter the capacitor during use, affecting its normal operation. Therefore, its structure needs to be improved.
[0004] Now, a novel thin-film capacitor with a moisture-proof structure is proposed to solve the above-mentioned problem. Utility Model Content
[0005] The purpose of this invention is to provide a thin-film capacitor with a moisture-proof structure to solve the problem of poor moisture-proof performance mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a film capacitor with a moisture-proof structure, comprising a shell and a capacitor body, wherein a first moisture-proof film is fixedly connected to the outside of the shell, the capacitor body is disposed inside the shell, wires are fixedly connected to the top and bottom of the capacitor body, a fixing cover is disposed at the top and bottom of the shell, a first reserved groove is disposed at the top of the fixing cover, a first protective shell is disposed outside the shell, a second protective shell is disposed at the bottom of the first protective shell, a second moisture-proof film is fixedly connected to the outside of the first and second protective shells, and a second reserved groove is disposed at the top and bottom of the first and second protective shells.
[0007] Preferably, the first moisture-proof film and the second moisture-proof film are made of the same material.
[0008] Preferably, a connecting block is fixedly connected to the bottom end of the fixed cover, the connecting block is provided with external threads, and the connecting block is detachable from the outer shell.
[0009] Preferably, the first protective shell is fixedly connected to the outside of a first connecting seat, the second protective shell is fixedly connected to the outside of a second connecting seat, and a double-ended screw is longitudinally arranged between the first connecting seat and the second connecting seat.
[0010] Preferably, the first protective shell and the second protective shell are fixedly connected to a fixing base, the fixing base is provided with a protective sleeve, the bottom end of the protective sleeve is fixedly connected to a retaining seat, the protective sleeve is detachably sleeved on the outside of the wire, and the retaining seat is detachably snapped into the outside of the fixing base.
[0011] Preferably, a locking nut is externally movably connected to the double-ended screw, and the first protective shell and the second protective shell are detachable via the double-ended screw and the locking nut.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the film capacitor with moisture-proof structure not only achieves the function of moisture protection and facilitates quick disassembly and assembly, but also protects the wires;
[0013] (1) By setting a first moisture-proof film and a second moisture-proof film, since the outer shell is fixedly connected to the first moisture-proof film, the outer shell of the first protective shell and the outer shell of the second protective shell are fixedly connected to the second moisture-proof film, and the first moisture-proof film and the second moisture-proof film are made of the same material, they can have a double moisture-proof effect, prevent moisture from entering the interior, and improve moisture resistance.
[0014] (2) By setting a fixed cover, connecting block, first protective shell, first connecting seat, second connecting seat, second protective shell, double-ended screw, and locking nut, the design of the first and second protective shells facilitates the impact protection of the outer shell and prevents it from deforming. When disassembling, the locking nut can be removed, which facilitates quick assembly and disassembly and is convenient to use.
[0015] (3) By setting up wires, protective sleeves, card holders and fixing seats, the protective sleeves can be used to cover the wires when they are not in use, and the card holders can be used to fix them on the fixing seats, thereby protecting the wires and preventing wear on the outside of the wires. Attached Figure Description
[0016] Figure 1 This is a front view cross-sectional structural diagram of the present invention;
[0017] Figure 2 This is a top view schematic diagram of the connection method between the second moisture-proof film and the first protective shell of this utility model;
[0018] Figure 3 This is a front view structural diagram of the connection method between the first protective shell and the second protective shell of this utility model;
[0019] Figure 4 This is a front view structural diagram of the connection method between the protective sleeve and the first protective shell of this utility model.
[0020] In the diagram: 1. Outer shell; 2. First moisture-proof membrane; 3. Capacitor body; 4. Fixing cover; 5. Connecting block; 6. Wire; 7. Protective sleeve; 8. Card holder; 9. Fixing seat; 10. First protective shell; 11. Second moisture-proof membrane; 12. First connecting seat; 13. Second connecting seat; 14. Second protective shell; 15. Double-ended screw; 16. Locking nut; 17. First reserved slot; 18. Second reserved slot. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides an embodiment: a film capacitor with a moisture-proof structure, including a shell 1 and a capacitor body 3. A first moisture-proof film 2 is fixedly connected to the outside of the shell 1, and the capacitor body 3 is disposed inside the shell 1. Wires 6 are fixedly connected to the top and bottom of the capacitor body 3. A fixing cover 4 is disposed at the top and bottom of the shell 1. A first reserved groove 17 is disposed at the top of the fixing cover 4. A first protective shell 10 is disposed outside the shell 1. A second protective shell 14 is disposed at the bottom of the first protective shell 10. A second moisture-proof film 11 is fixedly connected to the outside of the first protective shell 10 and the second protective shell 14. A second reserved groove 18 is disposed at the top of the first protective shell 10 and the bottom of the second protective shell 14.
[0023] The first moisture-proof film 2 and the second moisture-proof film 11 are made of the same material;
[0024] Specifically, such as Figure 1 and Figure 2 As shown, since the outer shell 1 is fixedly connected to the outside of the first moisture-proof film 2, the first protective shell 10 and the second protective shell 14 are fixedly connected to the outside of the second moisture-proof film 11, and the first moisture-proof film 2 and the second moisture-proof film 11 are made of the same material, they can have a dual moisture-proof effect, preventing moisture from entering the interior and improving moisture resistance.
[0025] A connecting block 5 is fixedly connected to the bottom end of the fixed cover 4. The connecting block 5 has external threads on its outside and is detachable from the outer shell 1.
[0026] The first protective shell 10 is externally fixedly connected to a first connecting seat 12, and the second protective shell 14 is externally fixedly connected to a second connecting seat 13. A double-headed screw 15 is longitudinally arranged between the first connecting seat 12 and the second connecting seat 13.
[0027] The double-ended screw 15 is externally connected to a locking nut 16, and the first protective shell 10 and the second protective shell 14 are detachable via the double-ended screw 15 and the locking nut 16;
[0028] Specifically, such as Figure 1 and Figure 3 As shown, the design of the first protective shell 10 and the second protective shell 14 facilitates the impact protection of the outer shell 1 and prevents it from deforming. When disassembling, the locking nut 16 can be removed, which facilitates quick assembly and disassembly and is convenient to use.
[0029] The first protective shell 10 and the second protective shell 14 are fixedly connected to the outside of the fixed base 9. The fixed base 9 is provided with a protective sleeve 7. The bottom end of the protective sleeve 7 is fixedly connected to the card seat 8. The protective sleeve 7 is sleeved on the outside of the wire 6 and is detachable. The card seat 8 is snapped on the outside of the fixed base 9 and is detachable.
[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the protective sleeve 7 can be used to cover the wire 6 when it is not in use, and the sleeve 8 can be used to fix it on the fixing seat 9, thereby protecting the wire 6 and preventing wear on the outside of the wire 6.
[0031] Working principle: In use, this utility model firstly utilizes the design of the first protective shell 10 and the second protective shell 14 to facilitate impact protection of the outer shell 1 and prevent deformation. During disassembly, the locking nut 16 can be removed for quick assembly and disassembly, making it convenient and easy to use. Then, the protective sleeve 7 can be used to cover the wire 6 when it is not in use, and it is fixed to the fixing seat 9 by the clamping seat 8, thereby protecting the wire 6 and preventing wear on the outside of the wire 6. Finally, because the outer shell 1 is fixedly connected to the first moisture-proof film 2, and the first protective shell 10 and the second protective shell 14 are fixedly connected to the second moisture-proof film 11, and the first moisture-proof film 2 and the second moisture-proof film 11 are made of the same material, they can have a double moisture-proof effect, preventing moisture from entering the interior and improving moisture resistance.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A thin film capacitor having a moisture-proof structure, comprising a case (1) and a capacitor body (3), characterized in that: The outside of the shell (1) is fixedly connected with a first moisture-proof film (2), the inside of the shell (1) is provided with a capacitor body (3), the top end and the bottom end of the capacitor body (3) are fixedly connected with wires (6), the top end and the bottom end of the shell (1) are provided with fixed covers (4), the top end of the fixed cover (4) is provided with a first reserved slot (17), the outside of the shell (1) is provided with a first protective shell (10), the bottom end of the first protective shell (10) is provided with a second protective shell (14), the outside of the first protective shell (10) and the second protective shell (14) is fixedly connected with a second moisture-proof film (11), the top end of the first protective shell (10) and the bottom end of the second protective shell (14) are provided with a second reserved slot (18).
2. The film capacitor with moisture-proof structure according to claim 1, characterized in that: The first moisture-proof film (2) and the second moisture-proof film (11) are made of the same material.
3. The film capacitor with moisture-proof structure according to claim 1, characterized in that: The bottom end of the fixed cover (4) is fixedly connected with a connecting block (5), the outside of the connecting block (5) is provided with external threads, and the connecting block (5) and the shell (1) are detachable.
4. The film capacitor with moisture-proof structure according to claim 1, characterized in that: The outside of the first protective shell (10) is fixedly connected with a first connecting seat (12), the outside of the second protective shell (14) is fixedly connected with a second connecting seat (13), and a double-head screw rod (15) is longitudinally and penetratingly arranged between the first connecting seat (12) and the second connecting seat (13).
5. The film capacitor with moisture-proof structure according to claim 1, characterized in that: The outside of the first protective shell (10) and the second protective shell (14) is fixedly connected with a fixed seat (9), the outside of the fixed seat (9) is provided with a protective sleeve (7), the bottom end of the protective sleeve (7) is fixedly connected with a clamping seat (8), the protective sleeve (7) is detachably sleeved on the outside of the wire (6), and the clamping seat (8) is detachably clamped on the outside of the fixed seat (9).
6. The film capacitor with moisture-proof structure according to claim 4, characterized in that: The outside of the double-head screw rod (15) is movably connected with a locking nut (16), and the first protective shell (10) and the second protective shell (14) are detachable through the double-head screw rod (15) and the locking nut (16).