Ultrahigh-voltage capacitor for wireless charging power supply

By combining springs, limiting holes, and limiting blocks, the design solves the problems of cumbersome disassembly and insufficient stability of ultra-high voltage capacitors used in wireless charging power supplies, enabling rapid installation and convenient maintenance, and improving the reliability and durability of the equipment.

CN223977801UActive Publication Date: 2026-03-06XI AN ACSOON POWER CO LTD
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Patent Information

Application Number
CN202520188690.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-03-06
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

The disassembly and maintenance of existing ultra-high voltage capacitors used in wireless charging power supplies are cumbersome, the bolts are prone to rust, increasing maintenance costs, and their stability is insufficient under high voltage conditions.

Method used

The design incorporates springs, limiting holes, and limiting blocks to facilitate quick installation and removal of the capacitor casing. The use of limiting posts and limiting workpieces enables convenient installation and replacement of the capacitor core. Combined with the design of the support base and heat dissipation holes, stability and heat dissipation efficiency are improved.

Benefits of technology

It simplifies the installation process, reduces the risk of failure, extends the service life, reduces maintenance costs and downtime, and improves the reliability and durability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of capacitor transformation, and discloses an ultra-high voltage capacitor for a wireless charging power supply, which comprises a supporting seat, a first sliding chute is arranged in the supporting seat, an installation plate is movably installed in the first sliding chute, one end of the installation plate is fixedly provided with a connecting block, and the other end of the installation plate is fixedly provided with a second sliding chute. A limiting block is fixedly installed at one end of the connecting block, a limiting hole is formed in the outer side of the supporting base, and the inner diameter value of the limiting hole is larger than the outer diameter value of the limiting block. Compared with a traditional capacitor, through cooperation of the spring, the limiting hole and the limiting block, the capacitor shell can be conveniently installed on the top of the supporting seat, the installation convenience is greatly improved, the capacitor shell can be easily and rapidly installed on the top of the supporting seat, the tedious installation process is simplified, and the installation efficiency is improved. The technical difficulty is reduced, the installation time is obviously saved, and the fault risk possibly caused by misoperation is effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor modification technology, and more specifically, to an ultra-high voltage capacitor for wireless charging power supply. Background Technology

[0002] Ultra-high voltage capacitors for wireless charging power supplies are designed specifically for high-voltage environments and are a key component of wireless charging systems. These capacitors can stably withstand the impact of high voltage and high-power current in high-power wireless charging devices, such as electric vehicle charging stations and large wireless chargers. Their excellent energy storage and release capabilities ensure the stable operation and long service life of wireless charging devices. By maintaining stable performance under high-voltage conditions, ultra-high voltage capacitors provide strong support for wireless charging technology, promoting the development and application of high-power devices such as electric vehicles and wireless chargers. In existing technologies, capacitor casings are typically secured using multiple sets of bolts screwed into fixing blocks and support bases to ensure stability during use. However, this method requires cumbersome disassembly by unscrewing multiple sets of bolts when the capacitor is impacted or damaged, making operation inconvenient. Furthermore, after prolonged use, the bolts are prone to rusting, further increasing the difficulty of disassembly and maintenance costs. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides an ultra-high voltage capacitor for wireless charging power supply, which has the advantage of facilitating the disassembly and assembly of the capacitor shell.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high voltage capacitor for wireless charging power supply, comprising a support base, a first sliding groove formed inside the support base, an mounting plate movably mounted inside the first sliding groove, a connecting block fixedly mounted at one end of the mounting plate, a limiting block fixedly mounted at one end of the connecting block, a limiting hole formed on the outer side of the support base, the inner diameter of the limiting hole being larger than the outer diameter of the limiting block, a pull rod fixedly mounted at one end of the mounting plate, a spring fixedly mounted inside the support base, and a capacitor shell fixedly mounted on the top of the mounting plate.

[0005] As a preferred embodiment of this utility model, a fixing seat is fixedly installed inside the capacitor shell, a second sliding groove is opened inside the fixing seat, an oxide film resistor is movably installed inside the second sliding groove, a first limiting post is fixedly installed on the top of the oxide film resistor, a second limiting post is fixedly installed on the top of the fixing seat, a limiting workpiece is movably installed on the outer surface of the second limiting post, and one end of the limiting workpiece is snapped into the outer surface of the first limiting post, and a capacitor core is fixedly installed between the two oxide film resistors.

[0006] As a preferred embodiment of this utility model, a gold-plated layer is fixedly installed on the right side of the capacitor core, an oxide film resistor is movably installed inside the capacitor shell, a wire is electrically connected between the oxide film resistor and the gold-plated layer, a lead terminal is fixedly installed on the top of the oxide film resistor, and one end of the lead terminal penetrates through the inside of the capacitor shell, and a wire is fixedly installed on the top of the lead terminal.

[0007] As a preferred embodiment of this utility model, a support column is fixedly installed between the oxide film resistor and the capacitor shell, and the support column is arranged in a circular array.

[0008] As a preferred embodiment of this utility model, a fixing block is fixedly installed around the outer perimeter of the support base, and a positioning hole is provided inside the fixing block.

[0009] As a preferred embodiment of this utility model, the back of the capacitor shell is provided with heat dissipation holes, and the heat dissipation holes are arranged in a linear array.

[0010] As a preferred embodiment of this utility model, the connecting block and the limiting block are arranged in pairs, with two sets in total on the right side of the mounting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. Compared with traditional capacitors, this utility model, through the cooperation between spring, limiting hole and limiting block, facilitates the installation of capacitor shell on top of support base, which greatly improves the convenience of installation. The capacitor shell can be easily and quickly installed on top of support base, which not only simplifies the cumbersome installation process and reduces technical difficulty, but also significantly saves installation time and effectively reduces the risk of failure caused by improper operation. Secondly, the support base provides solid and reliable support for capacitor shell, effectively preventing displacement and shaking of capacitor core due to vibration or external impact during operation. This excellent stability is crucial to ensuring that capacitor maintains excellent performance in applications that require continuous and stable power supply, such as wireless charging power supply, and further improves the overall reliability and durability of the device.

[0013] 2. Compared with traditional capacitors, this utility model facilitates the installation of the capacitor core through the cooperation between the first limiting post, the limiting workpiece, and the second limiting post. It also facilitates maintenance and replacement, extends service life, and allows maintenance personnel to easily remove the old capacitor core and install a new one when the core ages, is damaged, or its performance deteriorates. For equipment requiring frequent maintenance or upgrades, this design significantly reduces downtime and maintenance costs. Furthermore, it improves maintenance efficiency, allowing maintenance personnel to quickly locate and replace faulty components, shortening maintenance time, enhancing equipment reliability and availability, and reducing production losses or business interruptions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front three-dimensional external attachment structure of this utility model;

[0015] Figure 2 This is a three-dimensional view of the rear appearance structure of the present utility model;

[0016] Figure 3 This is an exploded view of the mounting plate of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the side cross-sectional structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the internal structure of the capacitor shell of this utility model.

[0021] In the diagram: 1. Support base; 2. Capacitor housing; 3. Connecting block; 4. Limiting block; 5. Fixing block; 6. Positioning hole; 7. Heat dissipation hole; 8. Mounting plate; 9. Pull rod; 10. Limiting hole; 11. Spring; 12. First slide groove; 13. Capacitor core; 14. Gold plating layer; 15. Wire; 16. Support column; 17. Oxide film resistor; 18. First limiting column; 19. Fixing base; 20. Second slide groove; 21. Second limiting column; 22. Limiting workpiece; 23. Wire; 24. Lead terminal. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 7 As shown, this utility model provides an ultra-high voltage capacitor for wireless charging power supply, including a support base 1. The support base 1 has a first sliding groove 12 inside, and an mounting plate 8 is movably installed inside the first sliding groove 12. A connecting block 3 is fixedly installed at one end of the mounting plate 8, and a limiting block 4 is fixedly installed at one end of the connecting block 3. A limiting hole 10 is opened on the outer side of the support base 1, and the inner diameter of the limiting hole 10 is larger than the outer diameter of the limiting block 4. A pull rod 9 is fixedly installed at one end of the mounting plate 8, a spring 11 is fixedly installed inside the support base 1, and a capacitor shell 2 is fixedly installed on the top of the mounting plate 8.

[0024] The operator needs to install the capacitor casing 2. First, fix the capacitor casing 2 on the top of the mounting plate 8. By holding the pull rod 9, the operator slowly pushes the mounting plate 8 into the first slide groove 12. The mounting plate 8 drives the connecting block 3 to move synchronously. The mounting plate 8 then compresses the spring 11 inside the first slide groove 12, causing the limiting block 4 to quickly enter the limiting hole 10 through the synchronous movement of the connecting block 3. The limiting hole 10 limits and fixes the limiting block 4, thus completing the installation of the capacitor casing 2 at the bottom of the support base 1.

[0025] When installing the capacitor casing 2, first secure it to the top of the mounting plate 8. Then, hold the lever 9 and push it to slowly slide the mounting plate 8 into the first groove 12, while the mounting plate 8 moves the connecting block 3 synchronously. As the mounting plate 8 penetrates the first groove 12, it compresses the spring 11, causing the limiting block 4 to quickly enter the limiting hole 10 along with the movement of the connecting block 3. The limiting hole 10 then limits and fixes the limiting block 4. Compared with traditional capacitors, this capacitor, through the cooperation between the spring 11, the limiting hole 10, and the limiting block 4, facilitates the installation of the capacitor shell 2 on the top of the support base 1, greatly improving the ease of installation. The capacitor shell 2 can be easily and quickly installed on the top of the support base, which not only simplifies the cumbersome installation process and reduces the technical difficulty, but also significantly saves installation time and effectively reduces the risk of failure caused by improper operation. Secondly, the support base 1 provides a solid and reliable support for the capacitor shell, effectively preventing the capacitor core 13 from shifting and shaking due to vibration or external impact during operation. This excellent stability is crucial for ensuring that the capacitor maintains excellent performance in applications that require continuous and stable power supply, such as wireless charging power supplies, further improving the overall reliability and durability of the device.

[0026] The capacitor housing 2 has a fixed base 19 inside, a second groove 20 inside the fixed base 19, an oxide film resistor 17 inside the second groove 20, a first limiting post 18 fixedly installed on the top of the oxide film resistor 17, a second limiting post 21 fixedly installed on the top of the fixed base 19, a limiting workpiece 22 movably installed on the outer surface of the second limiting post 21, and one end of the limiting workpiece 22 is engaged with the outer surface of the first limiting post 18. A capacitor core 13 is fixedly installed between the two oxide film resistors 17.

[0027] The operator needs to install the capacitor core 13 inside the capacitor casing 2. By holding the capacitor core 13, the operator slowly inserts the oxide film resistor 17 into the second slide groove 20. The oxide film resistor 17 is fixed by the fixing seat 19. When the oxide film resistor 17 is completely inside the second slide groove 20, the operator holds the limiting workpiece 22 and rotates it on the outer surface of the second limiting post 21. One end of the limiting workpiece 22 is rotated 90 degrees and locked onto the inner outer surface of the first limiting post 18. There are four sets of limiting workpieces 22 and first limiting posts 18. Through the cooperation between the limiting workpieces 22 and the first limiting posts 18, the installation of the capacitor core 13 is completed.

[0028] The component capacitor core 13 needs to be properly installed inside the capacitor housing 2. During operation, hold the capacitor core 13 and slowly feed the oxide film resistor 17 into the second slide groove 20 through it. Then, use the fixing seat 19 to limit and fix the oxide film resistor 17. After the oxide film resistor 17 is fully placed in the second slide groove 20, the limiting workpiece 22 is held and rotated on the outer surface of the second limiting post 21. After one end of the limiting workpiece 22 rotates 90 degrees, it is firmly locked onto the inner surface of the first limiting post 18. The limiting workpiece 22 and the first limiting post 18 are each provided with four sets. Through their close cooperation, the installation of the capacitor core 13 is finally completed smoothly. Compared with traditional capacitors, this capacitor facilitates the installation of the capacitor core 13 through the cooperation between the first limiting post 18, the limiting workpiece 22 and the second limiting post 21. At the same time, it facilitates maintenance and replacement, extends service life, and allows maintenance personnel to easily remove the old capacitor core 13 and install a new one when the capacitor core 13 is aged, damaged or degraded. For equipment that requires frequent maintenance or upgrades, this design greatly reduces downtime and maintenance costs. At the same time, it improves maintenance efficiency, allows maintenance personnel to quickly locate and replace faulty parts, shortens maintenance time, enhances equipment reliability and availability, and reduces production losses or business interruptions.

[0029] Among them, a gold-plated layer 14 is fixedly installed on the right side of the capacitor core 13, an oxide film resistor 17 is movably installed inside the capacitor shell 2, a wire 15 is electrically connected between the oxide film resistor 17 and the gold-plated layer 14, a lead terminal 24 is fixedly installed on the top of the oxide film resistor 17, and one end of the lead terminal 24 passes through the inside of the capacitor shell 2, and a wire 23 is fixedly installed on the top of the lead terminal 24.

[0030] By connecting the component capacitor core 13 and oxide film resistor 17 in series using wire 15, and then firmly soldering wire 23 to lead terminal 24, potting compound is filled into the capacitor housing 2 to enhance protection. During this process, sufficient distance is maintained between the gold plating layer 14 and the wire 23. This design significantly improves the component's dielectric strength and insulation performance. Furthermore, because the oxide film resistor 17 is almost independently mounted, its heat dissipation is superior compared to when it is completely encapsulated within a single capacitor housing 2. Therefore, the surface temperature of the oxide film resistor 17 is lower, further improving its operational reliability and stability.

[0031] Among them, a support column 16 is fixedly installed between the oxide film resistor 17 and the capacitor shell 2, and the support column 16 is in the form of a circular array.

[0032] Since the support columns 16 are arranged in a circular array on the oxide film resistor 17 and the capacitor housing 2, it is convenient to support the oxide film resistor 17. By supporting the oxide film resistor 17 separately inside the capacitor housing 2, a more optimized heat dissipation design can be achieved. Compared with the capacitor core 13, the oxide film resistor 17 may generate different heat distribution. Therefore, separate support is conducive to more precise design for the heat dissipation requirements of the oxide film resistor 17. This helps to reduce the operating temperature of the resistor and reduce the risk of performance degradation or failure due to overheating.

[0033] Among them, a fixing block 5 is fixedly installed on the outer perimeter of the support base 1, and a positioning hole 6 is opened inside the fixing block 5.

[0034] Since the support base 1 is fixedly installed with fixing blocks 5 around its outer perimeter, and the fixing blocks 5 have positioning holes 6 inside, by holding the bolts by hand, the bolts are slowly screwed into the positioning holes 6 and the interior of the support, and the fixing blocks 5 and the support base 1 are fixed by the bolts, thus ensuring the stability of the support base 1 during use.

[0035] The capacitor casing 2 has heat dissipation holes 7 on its back side, and the heat dissipation holes 7 are arranged in a linear array.

[0036] Since the heat dissipation holes 7 are arranged in a linear array on the back of the capacitor housing 2, the heat dissipation area of ​​the capacitor core 13 is increased by opening heat dissipation holes in the support base 1, thereby improving heat dissipation efficiency and effectively reducing the operating temperature of the capacitor core 13.

[0037] Among them, the connecting block 3 and the limiting block 4 are in pairs, with a total of two pairs on the right side of the mounting plate 8.

[0038] Since the connecting block 3 and the limiting block 4 are in pairs, there are two sets on the right side of the mounting plate 8. Through the cooperation between the connecting block 3 and the limiting block 4, the mounting plate 8 can be quickly installed inside the support base 1, ensuring the efficiency of limiting and fixing the mounting plate 8.

[0039] Working principle and usage process of this utility model:

[0040] The operator needs to install the capacitor casing 2. First, fix the capacitor casing 2 on the top of the mounting plate 8. By holding the pull rod 9, the operator slowly pushes the mounting plate 8 into the first slide groove 12. The mounting plate 8 drives the connecting block 3 to move synchronously. The mounting plate 8 then compresses the spring 11 inside the first slide groove 12, causing the limiting block 4 to quickly enter the limiting hole 10 through the synchronous movement of the connecting block 3. The limiting hole 10 limits and fixes the limiting block 4, thus completing the installation of the capacitor casing 2 at the bottom of the support base 1.

[0041] The operator needs to install the capacitor core 13 inside the capacitor casing 2. By holding the capacitor core 13, the operator slowly inserts the oxide film resistor 17 into the second slide groove 20. The oxide film resistor 17 is fixed by the fixing seat 19. When the oxide film resistor 17 is completely inside the second slide groove 20, the operator holds the limiting workpiece 22 and rotates it on the outer surface of the second limiting post 21. One end of the limiting workpiece 22 is rotated 90 degrees and locked onto the inner outer surface of the first limiting post 18. There are four sets of limiting workpieces 22 and first limiting posts 18. Through the cooperation between the limiting workpieces 22 and the first limiting posts 18, the installation of the capacitor core 13 is completed.

[0042] The support base features a specific structural design and material selection to enhance the capacitor's dielectric strength and insulation capabilities. This design helps protect the capacitor from external electromagnetic interference and the risk of electric shock, ensuring the safety and reliability of the wireless charging power supply.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A superhigh voltage capacitor for wireless charging power supply, comprising a support seat (1), characterized in that: The inside of the support seat (1) is provided with a first sliding groove (12), the inside of the first sliding groove (12) movably installs a mounting plate (8), one end of the mounting plate (8) is fixedly installed with a connecting block (3), one end of the connecting block (3) is fixedly installed with a limiting block (4), the outside of the support seat (1) is provided with a limiting hole (10), and the inner diameter of the limiting hole (10) is greater than the outer diameter of the limiting block (4), one end of the mounting plate (8) is fixedly installed with a pull rod (9), the inside of the support seat (1) is fixedly installed with a spring (11), and the top of the mounting plate (8) is fixedly installed with a capacitor shell (2).

2. A wireless charging power supply ultra-high voltage capacitor according to claim 1, characterized in that: The inside of the capacitor shell (2) is fixedly installed with a fixed seat (19), the inside of the fixed seat (19) is provided with a second sliding groove (20), the inside of the second sliding groove (20) movably installs an oxide film resistor (17), the top of the oxide film resistor (17) is fixedly installed with a first limiting column (18), the top of the fixed seat (19) is fixedly installed with a second limiting column (21), the outer surface of the second limiting column (21) movably installs a limiting workpiece (22), and one end of the limiting workpiece (22) is clamped on the outer surface of the first limiting column (18), and two oxide film resistors (17) are fixedly installed with a capacitor core (13) therebetween.

3. A wireless charging power supply use ultra-high voltage capacitor according to claim 2, characterized in that: The right side of the capacitor core (13) is fixedly installed with a gold spraying layer (14), the inside of the capacitor shell (2) movably installs an oxide film resistor (17), and the first lead wire (15) is electrically connected between the oxide film resistor (17) and the gold spraying layer (14). The top of the oxide film resistor (17) is fixedly installed with a lead terminal (24), one end of the lead terminal (24) penetrates into the inside of the capacitor shell (2), and the top of the lead terminal (24) is fixedly installed with a lead wire (23).

4. A wireless charging power supply use ultra-high voltage capacitor according to claim 3, characterized in that: The oxide film resistor (17) and the capacitor shell (2) are fixedly installed with a supporting column (16), and the supporting column (16) presents a circumferential array.

5. A kind of wireless charging power supply use ultra-high voltage capacitor according to claim 1, with the characteristics of: The outside of the support seat (1) is fixedly installed with a fixed block (5), and the inside of the fixed block (5) is provided with a positioning hole (6).

6. A kind of wireless charging power supply use ultra-high voltage capacitor according to claim 1, with the characteristics of: The back of the capacitor shell (2) is provided with a heat dissipation hole (7), and the heat dissipation hole (7) presents a linear array.

7. A kind of wireless charging power supply use ultra-high voltage capacitor according to claim 1, with the characteristics of: The connecting block (3) and the limiting block (4) are two groups, and there are two groups on the right side of the mounting plate (8).