Precise capacitor
By incorporating corrugated pads and a honeycomb base plate into the capacitor, heat dissipation and shock resistance issues are resolved, the pins are protected from damage, and the capacitor is safely transported and stored.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-10
AI Technical Summary
The existing capacitors have a compact internal core, which leads to poor heat dissipation and is not conducive to buffering the impact of an explosion. The leads are also easily damaged by compression.
A structure including a shell, core, pins, corrugated pads, honeycomb base plate, and protective cover is designed. The heat dissipation performance is improved by setting corrugated pads and honeycomb base plate in the inner cavity of the shell, and the pins are protected by the protective cover to avoid damage from compression.
It improves the heat dissipation performance of the capacitor, buffers the impact of explosions, protects the pins from crushing damage, and ensures safety during transportation and storage.
Smart Images

Figure CN223986500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitor technology, specifically to a precision capacitor. Background Technology
[0002] Two conductors placed close together, with a non-conductive insulating medium sandwiched between them, constitute a capacitor. When a voltage is applied between the two plates of a capacitor, it stores electrical charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one conducting plate to the voltage between the two plates. The basic unit of capacitance is the farad (F). In circuit diagrams, a capacitor is usually represented by the letter C.
[0003] However, the existing capacitors have a compact internal core located inside the outer shell, which is not conducive to heat dissipation, buffering the impact of an explosion, or mitigating external pressure. Moreover, when the capacitors are not in use during transportation and storage, the exposed pins are easily damaged by pressure. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a precision capacitor that solves the problems of existing capacitors where the internal core is compactly located within the inner cavity of the outer shell, which is not conducive to heat dissipation and buffering the impact of an explosion, and the leads are easily damaged by compression.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A precision capacitor includes a shell, a core, and leads. The core is installed inside the shell cavity, and leads are installed on the top of the core, extending through the top of the shell. Corrugated gaskets are installed on both side walls of the shell cavity, with the corrugated gaskets located on one side of the core. A protective cover is slidably installed on the top of the shell, and sliders are fixedly connected to both ends of the inner cavity of the protective cover. Sliding grooves are formed at the top of both sides of the shell, with the sliders located within the sliding grooves. A honeycomb base plate is installed at the bottom of the shell cavity, with the honeycomb base plate located at the bottom of the core.
[0006] Furthermore, a partition is fixedly provided on the top of the outer shell, and pins penetrate through the partition. A cover plate is installed on the top of the partition, and a protective cover is located on top of the cover plate.
[0007] Furthermore, a ceramic limiting ring is installed on the outside of the pin, and the ceramic limiting ring is located in the inner cavity of the partition.
[0008] Furthermore, the slide includes a first slot, a second slot, and a narrow slide, with the first slot and the second slot located at both ends of the narrow slide, and rubber blocks installed on both sides of the narrow slide.
[0009] Furthermore, the protective cover has through holes at both ends of its top, and the through holes are located at the top of the pins.
[0010] Furthermore, the corrugated gasket is made of silicone.
[0011] Beneficial effects
[0012] This invention provides a precision capacitor. It has the following advantages:
[0013] 1. This precision capacitor, by incorporating corrugated gaskets, creates a certain space between the outer side of the core and the inner wall of the outer casing, thus improving heat dissipation. Furthermore, a honeycomb base plate is installed at the bottom of the inner cavity of the outer casing, which increases the bottom space, further enhancing heat dissipation. This space also prevents the capacitor from being directly squeezed into the core when subjected to compression, mitigating the external pressure and preventing damage to the internal core. In the event of an internal explosion, the corrugated gaskets can also reduce the shock wave, minimizing the explosion amplitude.
[0014] 2. This precision capacitor features a protective cover. When the capacitor is packaged, transported, and stored after production, the protective cover can be lifted downwards. When the slider is locked in the first slot, the protective cover slides to the top, ensuring the leads are positioned with the through-hole inside the cover, as shown in the figure. This protects the leads from damage during transport and storage. When in use, simply place the protective cover down; the operation is simple and convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the slide groove structure of this utility model.
[0017] In the diagram: 1. Outer shell; 2. Core; 3. Pin; 4. Spacer; 5. Cover plate; 6. Corrugated gasket; 7. Honeycomb base plate; 8. Protective cover; 9. Through hole; 10. Slider; 11. Slide groove; 12. Ceramic limit ring; 13. No. 1 slot; 14. No. 2 slot; 15. Narrow slide; 16. Rubber block. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-2This utility model provides a precision capacitor technical solution: a precision capacitor includes a shell 1, a core 2, and leads 3. The core 2 is installed in the inner cavity of the shell 1, and the leads 3 are installed on the top of the core 2 and penetrate through the top of the shell 1. Corrugated gaskets 6 are installed on both sides of the inner cavity of the shell 1, and the corrugated gaskets 6 are located on one side of the core 2. A protective cover 8 is slidably installed on the top of the shell 1. Slider 10 is fixedly connected to both ends of the inner cavity of the protective cover 8. Slide grooves 11 are opened on the top of both sides of the shell 1, and the slider 10 is located in the inner cavity of the slide groove 11. A honeycomb bottom plate 7 is installed at the bottom of the inner cavity of the shell 1, and the honeycomb bottom plate 7 is located at the bottom of the core 2.
[0020] A partition 4 is fixedly provided on the top of the outer casing 1, and the pin 3 passes through the partition 4. A cover plate 5 is installed on the top of the partition 4, and a protective cover 8 is located on the top of the cover plate 5.
[0021] A ceramic limiting ring 12 is installed on the outside of pin 3, and the ceramic limiting ring 12 is located in the inner cavity of the partition 4.
[0022] The slide 11 includes a first slot 13, a second slot 14 and a narrow slide 15, with the first slot 13 and the second slot 14 located at both ends of the narrow slide 15, and rubber blocks 16 installed on both sides of the narrow slide 15.
[0023] The protective cover 8 has through holes 9 at both ends of its top, and the through holes 9 are located at the top of the pin 3.
[0024] The corrugated gasket 6 is made of silicone.
[0025] During operation, a corrugated gasket 6 is installed on the inner wall of the outer casing 1. The corrugated gasket 6 is made of silicone with a certain strength, elasticity, insulation, and high-temperature resistance. This creates a certain space between the outer side of the core 2 and the inner wall of the outer casing 1, thus improving heat dissipation. Furthermore, a honeycomb base plate 7 is installed at the bottom of the inner cavity of the outer casing 1. This honeycomb base plate 7 increases the bottom space, further improving heat dissipation. Moreover, the space prevents the capacitor from being directly squeezed onto the core 2 when it is compressed, thus mitigating the external compression force and preventing the external compression force from affecting the internal core. 2. Damage is caused, and when the capacitor explodes internally, the corrugated gasket 6 can mitigate the shock wave, reducing the explosion amplitude; when the capacitor is packaged, transported, and stored after production, the protective cover 8 can be lifted downwards, so that the sliders 10 at both ends of the inner cavity of the protective cover 8 slide from the second slot 14 along the narrow slide 15 into the inner cavity of the first slot 13. Because the slide 11 is wide at both ends and narrow in the middle, when the slider 10 is stuck in the inner cavity of the first slot 13, the protective cover 8 slides to the top, so that the pin 3 is located in the through hole 9 in the inner cavity of the protective cover 8, as shown. Figure 1 The state shown indicates that pin 3 is protected in this way to prevent it from being damaged by compression during transportation and storage.
Claims
1. A precision capacitor, comprising a shell (1), a core (2) and a pin (3), the core (2) is installed in the inner cavity of the shell (1), the pin (3) is installed on the top of the core (2), and the pin (3) penetrates through the top of the shell (1), characterized in that: The both sides wall of the inner chamber of the shell (1) is equipped with corrugated gasket (6), and the corrugated gasket (6) is located on the side of the core (2), the top of the shell (1) is equipped with the protective cover (8) that slides, the both ends of the inner chamber of the protective cover (8) is fixedly connected with the sliding block (10), the both sides top of the shell (1) is equipped with the sliding slot (11), and the sliding block (10) is located in the inner chamber of the sliding slot (11), the inner chamber of the shell (1) is equipped with the honeycomb bottom plate (7) on the bottom, and the honeycomb bottom plate (7) is located on the bottom of the core (2). 2. A precision capacitor as claimed in claim 1, wherein: The top of the shell (1) is fixedly equipped with the partition layer (4), and the pin (3) penetrates the partition layer (4), the top of the partition layer (4) is equipped with the cover plate (5), and the protective cover (8) is located on the top of the cover plate (5).
3. A precision capacitor as claimed in claim 1, wherein: The outer side of the pin (3) is equipped with the ceramic limiting ring (12), and the ceramic limiting ring (12) is located in the inner chamber of the partition layer (4).
4. The precision capacitor of claim 1, wherein: The sliding slot (11) includes a number of card slots (13), two card slots (14) and narrow slide (15), and the number of card slots (13) and two card slots (14) are located at both ends of the narrow slide (15), the both sides of the narrow slide (15) is equipped with rubber block (16).
5. The precision capacitor of claim 1, wherein: The both ends of the top of the protective cover (8) are penetrated with the through hole (9), and the through hole (9) is located on the top of the pin (3).
6. A precision capacitor as claimed in claim 1, wherein: The corrugated gasket (6) is made of organic silicon material.