Laminated capacitor with multilayer heat dissipation structure

By designing a multi-layer heat dissipation structure in the laminated capacitor and utilizing a protective casing and heat dissipation mechanism, the problem of performance degradation caused by heat accumulation in the capacitor is solved, achieving stable operation and extended lifespan.

CN224036230UActive Publication Date: 2026-03-24NANTONG SUNION ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing laminated capacitors experience temperature rise due to heat accumulation during prolonged operation, lacking effective heat dissipation, which affects capacitor performance and lifespan.

Method used

A stacked capacitor with a multi-layer heat dissipation structure was designed, including a protective shell, a positioning plate, a heat dissipation groove and a heat dissipation mechanism. It is stably installed by the connection of positioning screws and nuts, and heat dissipation plates and heat dissipation fins are arranged on both sides of the shell to enhance the heat dissipation effect.

Benefits of technology

It effectively improves the heat dissipation capacity of the capacitor, ensuring its stable operation at ideal temperatures, reducing the aging rate of internal materials, and extending its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a laminated capacitor with a multilayer heat dissipation structure, and particularly relates to the technical field of capacitors, the laminated capacitor comprises a protective shell, a lower positioning plate is arranged in the protective shell, positioning screw rods are fixedly arranged above the lower positioning plate, the positioning screw rods are distributed at four corners of the lower positioning plate, and the lower positioning plate is fixedly connected with the protective shell. The capacitor body is stably arranged in a central zone between the lower positioning plate and the upper positioning plate, the stability and safety of the capacitor body are guaranteed, a through groove reserved in the top of the protection shell facilitates maintenance of the capacitor, the protection efficiency is further improved by additionally arranging the cover plate, and the positioning rods are arranged in the heat dissipation grooves in the rear portion of the protection shell, so that the service life of the capacitor is prolonged. The heat dissipation mechanism fixed on the positioning rod significantly improves the heat dissipation effect, and at the same time, the heat dissipation plates arranged on the left and right sides of the device and the heat dissipation fins at the top ends of the heat dissipation plates further strengthen the overall heat dissipation capability, thereby ensuring that the capacitor can stably operate under an ideal temperature condition.
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Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor technical field more specifically, the utility model relates to a kind of laminated capacitor with multilayer heat dissipation structure. BACKGROUND

[0002] Laminated capacitor is inductive capacitor, its structure is similar to book, compared to cylindrical film capacitor inductance value is lower, high-frequency characteristic is better, high-frequency loss is small, and square design is convenient for fixed and reduces volume, it is applicable to electronic product, server, display card and other high-end field.

[0003] Through retrieval, existing patent publication number: CN206293293U discloses a novel sheet type multilayer ceramic capacitor, including inner electrode layer, inner layer insulating layer, end electrode and outer layer insulating layer;Inner electrode layer is covered on the surface of inner layer insulating layer;The same surface of inner layer insulating layer is covered with two separate inner electrode layers;Multiple inner layer insulating layers covered with inner electrode layer are mutually superimposed;Outer surface of multiple inner layer insulating layers is covered with outer layer insulating layer.The novel sheet type multilayer ceramic capacitor provided by the utility model forms inner electrode outer layer open circuit design mode by opening circuit design of inner electrode layer of outer layer, to reduce arc, improve the effect of voltage resistance, thereby reduce the failure rate.Adopting the novel sheet type multilayer ceramic capacitor provided by the utility model, no arc phenomenon occurs when carrying out voltage resistance test, and product life is long.

[0004] The existing laminated multilayer capacitor lacks the function of dissipating heat for the capacitor when in use, because the capacitor is easy to accumulate heat during long-time working process, so that the internal temperature gradually rises, reduces the performance of the capacitor, thereby seriously affects the service life of the capacitor.

[0005] Therefore, a laminated capacitor with multilayer heat dissipation structure is proposed to solve the above problems. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a laminated capacitor with multilayer heat dissipation structure to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides following technical scheme: a laminated capacitor with multilayer heat dissipation structure, including protection shell, the inside of protection shell is provided with lower positioning plate, the upper side of lower positioning plate is fixedly installed with positioning screw rod, the four corners of lower positioning plate are distributed with positioning screw rod, the top of positioning screw rod is placed with upper positioning plate, the middle position of lower positioning plate and upper positioning plate is provided with capacitor body, the top of protection shell is provided with through slot, the opening of through slot is provided with cover plate, the rear side of protection shell is provided with heat dissipation groove, the inside of heat dissipation groove is fixedly installed with positioning rod, the upper side of positioning rod is fixedly installed with heat dissipation mechanism, the left and right sides of protection shell are fixedly installed with heat dissipation plate, the upper side of heat dissipation plate is fixedly installed with fin.

[0008] Preferably, the outer side of the positioning screw rod is threadedly mounted with a positioning nut, and the positioning nut is located directly above the upper positioning plate.

[0009] Preferably, the upper side of the lower positioning plate is threadedly mounted with a first positioning bolt, and the first positioning bolt is located at the left and right ends of the lower positioning plate.

[0010] Preferably, the left and right end portions of the cover plate are threadedly mounted with second positioning bolts, the protection shell and the cover plate are positioned by the second positioning bolts, the bottom of the cover plate is fixedly connected with a sealing gasket, and the sealing gasket is in contact with the inner wall of the through slot.

[0011] Preferably, the rear side of the protection shell is provided with a threaded hole, a protection frame is detachably mounted on the rear side of the protection shell, the protection frame is inserted into the inside of the threaded hole, and a third positioning bolt is threadedly mounted on the edge of the protection frame.

[0012] Preferably, a dustproof net is detachably mounted on the upper side of the protection frame.

[0013] The utility model discloses a technical effect and advantage:

[0014] Compared with the prior art, the laminated capacitor with multilayer heat dissipation structure, the core of the device is the protection shell, the internal structure layout is reasonable, the lower positioning plate is firmly installed at the bottom, the four corners are provided with positioning screw rods, these screw rods not only bear the supporting function, but also simplify the accurate assembly process of the upper positioning plate, the capacitor body is stably placed in the central zone between the lower positioning plate and the upper positioning plate, which guarantees its stability and safety, the through slot reserved at the top of the protection shell is convenient for the maintenance of the capacitor, and the addition of the cover plate further improves the protection efficiency.

[0015] Compared with the prior art, the laminated capacitor with the multi-layer heat dissipation structure has the positioning rods arranged in the heat dissipation grooves at the rear of the protective shell, and the heat dissipation mechanism fixed on the positioning rods, so that the heat dissipation effect is obviously improved, meanwhile, the heat dissipation plates arranged on the left and right sides and the heat dissipation fins at the top ends of the heat dissipation plates further strengthen the overall heat dissipation capacity, so that the capacitor can be stably operated under ideal temperature conditions, the aging of the internal materials of the capacitor is reduced, and the service life of the capacitor is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole three-dimensional structure schematic view of the present application.

[0017] Figure 2 It is a rear view structure schematic view of the present application.

[0018] Figure 3 It is a rear view three-dimensional structure schematic view of the present application.

[0019] Figure 4 It is a cover plate structure schematic view of the present application.

[0020] The signs are as follows: 1, protective shell; 2, lower positioning plate; 3, positioning screw rod; 4, upper positioning plate; 5, positioning nut; 6, first positioning bolt; 7, capacitor body; 8, through groove; 9, cover plate; 10, second positioning bolt; 11, sealing gasket; 12, heat dissipation groove; 13, positioning rod; 14, heat dissipation mechanism; 15, threaded hole; 16, protective frame; 17, third positioning bolt; 18, dustproof net; 19, heat dissipation plate; 20, heat dissipation fin. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the present application. Embodiment one

[0022] As shown in the accompanying drawings, Figures 1 to 4As shown in one kind of laminated capacitor with multilayer heat dissipation structure, including protective shell 1, the inside of protective shell 1 is provided with lower positioning plate 2, the upper side of lower positioning plate 2 is fixedly installed with positioning screw 3, positioning screw 3 is distributed at the four corners of lower positioning plate 2, the top of positioning screw 3 is placed with upper positioning plate 4, the middle position of lower positioning plate 2 and upper positioning plate 4 is provided with capacitor body 7, the top of protective shell 1 is provided with through slot 8, the opening of through slot 8 is provided with cover plate 9, the rear side of protective shell 1 is provided with heat dissipation groove 12, the inside of heat dissipation groove 12 is fixedly installed with positioning rod 13, the upper side of positioning rod 13 is fixedly installed with heat dissipation mechanism 14, the left and right sides of protective shell 1 are fixedly installed with heat dissipation plate 19, the upper side of heat dissipation plate 19 is fixedly installed with fin 20.

[0023] Wherein: in protective shell 1 as the main body of the whole device, its internal structure design is exquisite. Lower positioning plate 2 is stably installed on the bottom, and positioning screw 3 is arranged at the four corners above it. These positioning screws 3 not only play a supporting role, but also facilitate the accurate installation of upper positioning plate 4. Capacitor body 7 is placed in the middle position between lower positioning plate 2 and upper positioning plate 4, which ensures its stability and safety. The through slot 8 provided at the top of the protective shell 1 provides convenience for the maintenance of the capacitor, and the cover plate 9 further enhances the protection. In addition, the positioning rod 13 is arranged in the heat dissipation groove 12 at the rear side of the protective shell 1, and the heat dissipation mechanism 14 fixed on it effectively improves the heat dissipation efficiency. The left and right heat dissipation plates 19 and the fins 20 on their upper sides further enhance the heat dissipation performance of the whole device, ensuring that the capacitor can work stably at an appropriate temperature, reducing the aging of the internal materials, and thus increasing the service life of the capacitor. Example two

[0024] Based on the basis of example one, the scheme in example one is further refined and introduced in detail as follows: Figures 1 to 4 As shown, see the following description in detail:

[0025] As a preferred embodiment, the outer side of the positioning screw 3 is threadedly installed with a positioning nut 5, and the positioning nut 5 is located directly above the upper positioning plate 4. Further, threads are machined on the outer side of the positioning screw 3, which perfectly fit with the internal threads of the positioning nut 5, ensuring that the two can be tightly and stably connected together. The positioning nut 5 is installed at the top end of the positioning screw 3, which is located directly above the upper positioning plate 4. This design not only enhances the stability of the structure, but also facilitates the adjustment or fixation of the position of the upper positioning plate 4 by rotating the positioning nut 5, thereby achieving more accurate and reliable positioning effect, ensuring the stable operation of the equipment.

[0026] As a preferred embodiment, the upper side of the lower positioning plate 2 is provided with a first positioning bolt 6, which is located at the left and right ends of the lower positioning plate 2; further, screw holes are designed on the upper side of the lower positioning plate 2 for installing the first positioning bolt 6, which are respectively located at the left and right ends of the lower positioning plate 2, forming a stable support and fixing structure, which can firmly connect the relevant components with the lower positioning plate 2 by tightening the first positioning bolt 6, not only enhancing the stability of the whole, but also facilitating quick disassembly or adjustment when needed, reflecting the flexibility and practicality of the design.

[0027] As a preferred embodiment, the left and right ends of the cover plate 9 are provided with second positioning bolts 10, which are used to position the protective shell 1 and the cover plate 9; the bottom of the cover plate 9 is fixedly connected with a sealing gasket 11, which is in contact with the inner wall of the through groove 8; further, screw holes are designed on the left and right ends of the cover plate 9 for installing the second positioning bolts 10, which not only tightly position the protective shell 1 and the cover plate 9 together, but also ensure the stability and safety of the structure; the bottom of the cover plate 9 is fixedly connected with a sealing gasket 11, which tightly fits the inner wall of the through groove 8, effectively preventing the intrusion of external dust or liquid, further improving the protective performance and service life of the equipment.

[0028] As a preferred embodiment, the rear side of the protective shell 1 is provided with a threaded hole 15, and a protective frame 16 is detachably installed on the rear side of the protective shell 1; the protective frame 16 is inserted into the threaded hole 15, and a third positioning bolt 17 is threadedly installed on the edge of the protective frame 16; further, a threaded hole 15 is designed on the rear side of the protective shell 1 to facilitate the installation of the detachable protective frame 16. The protective frame 16 can be inserted into the threaded hole 15 to provide additional protection for the equipment, ensuring the stability of the protective frame 16, and the edge of the protective frame 16 is ingeniously designed with threads for installing the third positioning bolt 17, which is tightly fixed on the protective shell 1 by tightening the third positioning bolt 17, thereby enhancing the stability of the overall structure and facilitating future maintenance and replacement.

[0029] As a preferred embodiment, the upper side of the protective frame 16 is detachably installed with a dust screen 18; further, a detachable dust screen 18 is designed on the upper side of the protective frame 16, effectively blocking dust and impurities in the air from entering the interior of the equipment, thereby protecting the internal components from pollution and damage; the dust screen 18 is not only easy to disassemble and clean, but also ensures the continuous and efficient operation of the equipment; through simple operation, the user can easily check and replace the dust screen 18 to maintain the optimal working condition of the equipment and prolong its service life.

[0030] The working process of the utility model is as follows: when using, the first step is to arrange and prepare the whole device, then, the capacitor body 7 is properly placed between the lower positioning plate 2 and the upper positioning plate 4 through the through slot 8, and the position of the capacitor body 7 is stabilized by the positioning screw 3 matched with the positioning nut 5. Then, the cover plate 9 is covered on the through slot 8, and the cover plate 9 is firmly fixed on the top of the protective shell 1 by using the second positioning bolt 10. Once the temperature of the internal elements of the capacitor body 7 rises, the heat dissipation mechanism 14 is started, at this time, the fan blades can directly aim at the capacitor body 7 to perform heat dissipation work, and the internal components of the protective shell 1 are subjected to heat dissipation treatment, finally, the heat released by the capacitor body 7 can be effectively dissipated through the heat dissipation plates 19 on both sides of the protective shell 1 and the heat dissipation fins 20 on the upper part thereof.

Claims

1. A stacked capacitor with a multi-layer heat dissipation structure, comprising a protective housing (1), characterized in that: The protective housing (1) is provided with a lower positioning plate (2) inside. A positioning screw (3) is fixedly installed on the upper part of the lower positioning plate (2). The positioning screw (3) is distributed at the four corners of the lower positioning plate (2). An upper positioning plate (4) is placed on the top of the positioning screw (3). A capacitor body (7) is provided in the middle of the lower positioning plate (2) and the upper positioning plate (4). A through groove (8) is opened on the top of the protective housing (1). A cover plate (9) is provided at the opening of the through groove (8). A heat dissipation groove (12) is opened on the rear side of the protective housing (1). A positioning rod (13) is fixedly installed inside the heat dissipation groove (12). A heat dissipation mechanism (14) is fixedly installed on the upper side of the positioning rod (13). Heat dissipation plates (19) are fixedly installed on the left and right sides of the protective housing (1). Heat dissipation fins (20) are fixedly installed on the upper side of the heat dissipation plates (19).

2. A stacked capacitor with a multi-layer heat dissipation structure according to claim 1, characterized in that: The positioning screw (3) is threaded with a positioning nut (5) on its outer side, and the positioning nut (5) is located directly above the upper positioning plate (4).

3. A stacked capacitor with a multi-layer heat dissipation structure according to claim 2, characterized in that: The lower positioning plate (2) is threaded with a first positioning bolt (6), which is located at the left and right ends of the lower positioning plate (2).

4. A stacked capacitor with a multi-layer heat dissipation structure according to claim 2, characterized in that: The cover plate (9) is threaded with second positioning bolts (10) at both ends. The protective housing (1) and the cover plate (9) are positioned by the second positioning bolts (10). A sealing gasket (11) is fixed to the bottom of the cover plate (9). The sealing gasket (11) is in contact with the inner wall of the through groove (8).

5. A stacked capacitor with a multi-layer heat dissipation structure according to claim 4, characterized in that: The protective housing (1) has a threaded hole (15) on its rear side. A protective frame (16) is detachably installed on the rear side of the protective housing (1). The protective frame (16) is inserted into the threaded hole (15). A third positioning bolt (17) is threaded on the edge of the protective frame (16).

6. A stacked capacitor with a multi-layer heat dissipation structure according to claim 5, characterized in that: A dustproof net (18) can be detachably installed on the upper side of the protective frame (16).

Citation Information

Patent Citations

  • Novel piece formula multilayer ceramic capacitor

    CN206293293U