Moisture-proof and moisture-proof chip capacitor

By using a combination of absorbent cotton and desiccant in surface mount capacitors, along with a moisture-proof layer and a breathable membrane, the problem of capacitor damage caused by moisture is solved, thereby improving the capacitor's moisture-proof and waterproof performance as well as its structural stability.

CN223665309UActive Publication Date: 2025-12-12SHENZHEN SHANZHIBEN IND DEV CO LTD
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Patent Information

Application Number
CN202520225779.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-12-12
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing surface mount capacitors are prone to damage from moisture during long-term use. Damage to the sealing structure allows moisture to enter, shortening the service life and accelerating aging.

Method used

The design employs absorbent cotton 1 and absorbent cotton 2 to sandwich the desiccant, combined with a moisture-proof layer, insulating coating, and waterproof and breathable membrane to enhance moisture resistance and provide insulation protection. The structural stability is improved by supporting plastic springs.

Benefits of technology

It effectively prevents moisture intrusion, improves the capacitor's moisture resistance and stability, and ensures the long-term reliability and safety of the capacitor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a moisture-proof and moisture-proof chip capacitor, which relates to the technical field of chip capacitors and comprises a capacitor main body, second absorbent cotton is arranged on the outer side of the capacitor main body, a drying agent is arranged on the outer side of the second absorbent cotton, first absorbent cotton is arranged on the outer side of the drying agent, extrusion plates are arranged on the two sides of the first absorbent cotton, and the extrusion plates are arranged on the outer side of the capacitor main body. Intruding water vapor and drying agents can be absorbed through the first water absorption cotton and the second water absorption cotton, moisture is further removed through the drying agents, the drying agents are clamped through the first water absorption cotton and the second water absorption cotton, stability of the drying agents is guaranteed, good moisture-proof protection is provided for the capacitor body, and it is guaranteed that the capacitor performance is stable and reliable. And the extrusion plates on the two sides of the first absorbent cotton are matched with the clamping plates, so that fixation of internal components is enhanced, and the overall stability of the capacitor is improved.
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Description

Technical Field

[0001] This utility model relates to the field of chip capacitor technology, and in particular to a moisture-resistant and moisture-proof chip capacitor. Background Technology

[0002] Moisture-resistant surface mount capacitors play a vital role in electronic devices. They effectively resist the effects of humid environments, ensuring the stability and reliability of capacitors under high humidity conditions. Through special material and structural design, these capacitors prevent moisture infiltration, thus avoiding performance degradation or failure. Moisture-resistant surface mount capacitors are widely used in communications, automotive, and consumer electronics fields to ensure the normal operation of equipment in harsh environments. At the same time, their use can improve the lifespan and performance of equipment, ensuring the long-term stability of electronic products.

[0003] In practical applications, existing moisture-proof surface mount capacitors, when used in conjunction with other technologies, can generally meet the moisture-proof requirements for surface mount capacitors. However, the following issues still exist:

[0004] However, in actual use, it has been found that existing surface mount capacitors are prone to internal damage due to moisture during long-term use, which reduces the lifespan of the capacitor. If the sealing structure is slightly damaged, moisture can easily penetrate and accelerate the aging of the capacitor. This application provides a moisture-resistant and moisture-proof surface mount capacitor to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a moisture-resistant and moisture-proof chip capacitor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a moisture-resistant and moisture-proof chip capacitor, comprising a capacitor body, an absorbent cotton II disposed on the outer side of the capacitor body, a desiccant disposed on the outer side of the absorbent cotton II, and an absorbent cotton I disposed on the outer side of the desiccant.

[0007] In a preferred embodiment, the absorbent cotton is provided with extrusion plates on both sides, and a clamping plate is provided at the other end of the extrusion plates.

[0008] The technical effect of adopting the above technical solution is that the squeezing plates on both sides of the absorbent cotton cooperate with the clamping plates to enhance the fixation of the internal components and improve the overall stability of the capacitor.

[0009] In a preferred embodiment, a moisture-proof layer is filled between the clamping plate and the absorbent cotton.

[0010] The technical effect of adopting the above technical solution is that the moisture-proof layer between the clamping plate and the absorbent cotton further improves the moisture-proof performance of the capacitor and protects the internal components.

[0011] In a preferred embodiment, the outer side of the clamping plate is provided with an insulating coating, and a sealing shell is provided on the outer side of the insulating coating. The top and bottom of the sealing shell are provided with waterproof and breathable membranes.

[0012] The technical effects of adopting the above technical solution are: the insulating coating on the outside of the clamp and the sealed shell provide good insulation protection for the capacitor, and the waterproof and breathable membranes at the top and bottom of the sealed shell prevent moisture from entering while ensuring the internal gas flow, thereby improving the capacitor's moisture-proof and waterproof performance and safety in use.

[0013] In a preferred embodiment, the top and bottom of the absorbent cotton are provided with supporting plastic springs, and the other end of the supporting plastic springs is fixedly connected to the insulating coating.

[0014] The technical effect of adopting the above technical solution is that the absorbent cotton and the supporting plastic springs at the top and bottom connect to the insulating coating, providing a buffer for the internal components and enhancing the overall structural stability and impact resistance of the capacitor.

[0015] In a preferred embodiment, a lead wire is provided at the bottom of the capacitor body, and a heat-conducting plate is provided at the top of the capacitor body.

[0016] The technical effect of adopting the above technical solution is that the leads at the bottom of the capacitor body are used to connect the circuit, and the heat-conducting plate at the top can quickly dissipate heat, ensuring stable operation of the capacitor.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] This invention comprises absorbent cotton I, a desiccant, absorbent cotton II, and a capacitor body. Absorbent cotton I and absorbent cotton II absorb intruding moisture, while the desiccant further removes moisture. The desiccant is held in place by absorbent cotton I and absorbent cotton II, ensuring its stability and providing good moisture protection for the capacitor body. This ensures stable and reliable capacitor performance and solves the problems mentioned in the background art. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a moisture-resistant and moisture-proof chip capacitor provided by this utility model;

[0020] Figure 2 A cross-sectional view of the structure of a moisture-resistant and moisture-proof chip capacitor provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a moisture-resistant and moisture-proof patch capacitor heat-conducting sheet provided by this utility model.

[0022] Legend:

[0023] 1. Sealed outer shell; 2. Waterproof and breathable membrane; 3. Heat-conducting sheet; 4. Lead wire; 5. Insulating coating; 6. Supporting plastic spring; 7. Clamping plate; 8. Extruded plate; 9. Moisture-proof layer; 10. Absorbent cotton I; 11. Desiccant; 12. Absorbent cotton II; 13. Capacitor body. Detailed Implementation

[0024] 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.

[0025] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a moisture-resistant and moisture-proof chip capacitor, including a capacitor body 13. A second absorbent cotton 12 is disposed on the outer side of the capacitor body 13, a desiccant 11 is disposed on the outer side of the second absorbent cotton 12, and a first absorbent cotton 10 is disposed on the outer side of the desiccant 11. The first absorbent cotton 10 and the second absorbent cotton 12 can absorb intruding moisture, and the desiccant 11 further removes moisture. By clamping the desiccant 11 with the first absorbent cotton 10 and the second absorbent cotton 12, the stability of the desiccant 11 is ensured, providing good moisture protection for the capacitor body 13 and ensuring stable and reliable capacitor performance.

[0026] Going a step further, such as Figure 1 - Figure 3 As shown: The absorbent cotton 10 has extrusion plates 8 on both sides and a clamping plate 7 on the other end of the extrusion plate 8. The extrusion plates 8 and clamping plates 7 on both sides of the absorbent cotton 10 cooperate to enhance the fixation of the internal components and improve the overall stability of the capacitor.

[0027] To solve the internal moisture problem, such as Figure 1 - Figure 3 As shown: In this solution, a moisture-proof layer 9 is filled between the clamping plate 7 and the absorbent cotton 10. The moisture-proof layer 9 between the clamping plate 7 and the absorbent cotton 10 further improves the moisture-proof performance of the capacitor and protects the internal components. An insulating coating 5 is provided on the outside of the clamping plate 7, and a sealing shell 1 is provided on the outside of the insulating coating 5. Waterproof and breathable membranes 2 are provided on the top and bottom of the sealing shell 1. The insulating coating 5 on the outside of the clamping plate 7 and the sealing shell 1 provide good insulation protection for the capacitor. The waterproof and breathable membranes 2 on the top and bottom of the sealing shell 1 prevent moisture from entering while ensuring the circulation of internal gas, thereby improving the moisture-proof and waterproof performance and safety of the capacitor.

[0028] To solve the capacitor stability problem, such as Figure 1 - Figure 3 As shown: In this solution, the top and bottom of the absorbent cotton 10 are provided with supporting plastic springs 6. The other end of the supporting plastic springs 6 is fixedly connected to the insulating coating 5. The supporting plastic springs 6 at the top and bottom of the absorbent cotton 10 are connected to the insulating coating 5 to provide buffer for the internal components and enhance the overall structural stability and impact resistance of the capacitor.

[0029] Working principle:

[0030] like Figure 1 - Figure 3 As shown:

[0031] In use: The absorbent cotton 10 and absorbent cotton 2 12 on the outside of the capacitor body 13 effectively absorb intruding moisture, preventing moisture from directly contacting the capacitor body 13. The desiccant 11 located between them further removes moisture, ensuring a dry internal environment for the capacitor. The absorbent cotton 10 and absorbent cotton 2 12 clamp the desiccant 11, ensuring its stability and allowing it to continuously perform its moisture-proof function. The extrusion plates 8 on both sides of the absorbent cotton 10 cooperate with the clamping plates 7 to enhance the fixation of internal components, greatly improving the overall stability of the capacitor. The moisture-proof layer 9 between the clamping plates 7 and the absorbent cotton 10 further enhances the moisture-proof performance of the capacitor, ensuring... To protect internal components from moisture corrosion, the insulating coating 5 on the outside of the clamping plate 7 and the sealed shell 1 together provide good insulation protection for the capacitor, preventing safety issues such as leakage. The waterproof and breathable membrane 2 at the top and bottom of the sealed shell 1 prevents moisture from entering while ensuring internal gas circulation, improving the capacitor's moisture-proof and waterproof performance and safety in use. The absorbent cotton 10 and the supporting plastic spring 6 at the top and bottom connect to the insulating coating 5, providing cushioning for the internal components and enhancing the stability and impact resistance of the overall capacitor structure. The lead wire 4 at the bottom of the capacitor body 13 is used to connect the circuit, and the heat-conducting plate 3 at the top can quickly dissipate heat, ensuring stable operation of the capacitor during operation.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A moisture-resistant and moisture-proof chip capacitor, comprising a capacitor body (13), characterized in that, The capacitor body (13) is provided with absorbent cotton 2 (12) on the outside, desiccant (11) is provided on the outside of absorbent cotton 2 (12), and absorbent cotton 1 (10) is provided on the outside of desiccant (11).

2. The moisture-resistant and moisture-proof chip capacitor according to claim 1, characterized in that, The absorbent cotton (10) is provided with extrusion plates (8) on both sides, and a clamping plate (7) is provided at the other end of the extrusion plate (8).

3. The moisture-resistant and moisture-proof chip capacitor according to claim 2, characterized in that, A moisture-proof layer (9) is filled between the clamp (7) and the absorbent cotton (10).

4. A moisture-resistant and moisture-proof chip capacitor according to claim 2, characterized in that, The outer side of the clamp (7) is provided with an insulating coating (5), and the outer side of the insulating coating (5) is provided with a sealing shell (1). The top and bottom of the sealing shell (1) are provided with waterproof and breathable membranes (2).

5. A moisture-resistant and moisture-proof chip capacitor according to claim 1, characterized in that, The top and bottom of the absorbent cotton (10) are provided with supporting plastic springs (6), and the other end of the supporting plastic springs (6) is fixedly connected to the insulating coating (5).

6. A moisture-resistant and moisture-proof chip capacitor according to claim 1, characterized in that, The capacitor body (13) has a lead wire (4) at the bottom and a heat-conducting plate (3) at the top.