Aluminum case structure for aluminum electrolytic capacitor

By designing an aluminum shell structure for aluminum electrolytic capacitors, and employing positioning linkage components and fixed limiting components to securely fix the capacitors, the problems of inconvenient installation and safety hazards of traditional capacitors are solved by utilizing coolant bladders for heat dissipation and guide ball bearings for clamping, thus improving installation efficiency and safety.

CN116844871BActive Publication Date: 2026-04-14SHENZHEN XINZHONGYUAN ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN XINZHONGYUAN ELECTRONICS CO LTD
Filing Date
2023-08-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional capacitors have an inflexible casing structure, making installation and disassembly inconvenient. They are also susceptible to explosions due to environmental factors and lack heat dissipation capabilities, posing safety hazards.

Method used

An aluminum shell structure for an aluminum electrolytic capacitor was designed, including a shell, a protective shell, a buffer plate, a vibration damping spring, an insulating sealing layer, a positioning device, and a cooling protection device. The capacitor is securely fixed through a positioning linkage component and a fixed limiting component. Coolant is used for heat dissipation, and guide balls are used for fixed clamping, buffering and vibration reduction.

Benefits of technology

It simplifies the capacitor assembly and disassembly process, improves installation efficiency, avoids explosions caused by excessive temperature or external impact, and enhances safety and protection performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116844871B_ABST
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Abstract

The application provides an aluminum housing structure for an aluminum electrolytic capacitor, which comprises a shell, a protective shell mounted on the outer side of the shell, a buffer plate mounted between the shell and the protective shell, damping springs mounted between the buffer plates, and a capacitor mounted in the shell; a positioning device is mounted on the inner wall bottom of the shell, and the positioning device comprises an elastic support air cushion, a fixed clamping piece, a positioning linkage assembly and a fixed limiting assembly; the elastic support air cushion is arranged on the inner wall bottom of the positioning device. The aluminum housing structure for the aluminum electrolytic capacitor is provided with the positioning device, the fixed clamping piece, the positioning linkage assembly and the fixed limiting assembly are matched with each other, the capacitor is fixed, the capacitor is fixed firmly, the capacitor can be disassembled and assembled simply and efficiently through the arrangement, the capacitor can be effectively fixed by pressing it towards the inside, and the working efficiency is effectively and significantly improved.
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Description

Technical Field

[0001] This invention belongs to the field of electrolytic capacitor technology, and particularly relates to an aluminum shell structure for an aluminum electrolytic capacitor. Background Technology

[0002] A capacitor is a device that stores electrical charge. It is one of the most widely used electronic components in electronic devices. It is widely used in circuits for DC blocking and AC passing, coupling, bypassing, filtering, tuning circuits, energy conversion, and control. In real life, any two conductors that are insulated from each other and very close together constitute a capacitor. The outer shell of a typical electric heater is made of aluminum.

[0003] Currently, capacitors on the market present the following problems during installation and use: First, traditional capacitor casings are fixed structures, making adjustments impossible. Furthermore, installation typically involves welding, leading to inconvenience and cumbersome installation and disassembly. Second, traditional aluminum casings are susceptible to environmental conditions. A violent impact can cause pressure to build up inside the capacitor, releasing flammable and corrosive gases, potentially leading to an explosion and posing a safety hazard. Third, traditional aluminum casings lack heat dissipation capabilities, potentially causing explosions due to excessively high internal temperatures, compromising safety. Therefore, these shortcomings fail to meet user needs, necessitating further improvements.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an aluminum shell structure for aluminum electrolytic capacitors, in order to achieve a more practical value. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an aluminum shell structure for aluminum electrolytic capacitors, which is achieved by the following specific technical means: including a shell, a protective shell, a buffer plate, a vibration damping spring, an insulating sealing layer, a capacitor, a positioning device, an elastic support air cushion, a fixing clip, a positioning linkage assembly, a first movable gear, a movable toothed plate, a second movable gear, a fixed limiting assembly, a limiting connecting rod, a limiting component, a buffer spring, a mounting frame, a mounting rod, a cooling protection device, a coolant bladder, a positioning guide mechanism, a mounting air cushion, a connecting rod, and guide balls.

[0006] The positions and connections between the above structures are as follows:

[0007] An aluminum casing structure for an aluminum electrolytic capacitor includes a casing, a protective outer shell mounted on the outer side of the casing, a buffer plate mounted between the casing and the protective outer shell, and a vibration damping spring mounted between the buffer plates. A capacitor is mounted inside the casing. A positioning device is mounted on the bottom inner wall of the casing. The positioning device includes an elastic support air cushion, a fixing clip, a positioning linkage component, and a fixing limit component. This design securely fixes the capacitor, simplifying and simplifying the assembly and disassembly process. The capacitor is effectively fixed simply by pressing it inward, significantly improving work efficiency. The elastic support air cushion is located on the bottom inner wall of the positioning device. A fixing clip is fixedly mounted on the upper side of the elastic support air cushion. The fixing clip has a groove that mates with the capacitor. Positioning linkage components are mounted on both sides of the fixing clip, and a fixing limit component is mounted on the upper side of the positioning linkage component.

[0008] Furthermore, the positioning linkage component includes a first movable gear, a movable toothed plate, and a second movable gear. During the downward movement of the fixed clamp, the racks on both sides of the fixed clamp mesh with the first movable gear to drive the movable toothed plate upward. At the same time, the movable toothed plate meshes with the second movable gear, thereby driving the fixed limiting component to contact the capacitor. Racks are provided on both the left and right sides of the fixed clamp. The fixed clamp is connected to the first movable gear by meshing with the racks. The side of the first movable gear away from the fixed clamp meshes with the movable toothed plate. The movable toothed plate is connected to the second movable gear on the side opposite the capacitor and directly above the first movable gear.

[0009] Furthermore, both the upper and lower ends of the movable toothed plate are fixedly connected to the interior of the positioning device via springs.

[0010] Furthermore, the fixing and limiting assembly includes a limiting link, a limiting component, and a buffer spring. By contacting the capacitor with the fixing and limiting assembly, the capacitor is fixed securely. This design simplifies and simplifies the assembly and disassembly process of the capacitor, as it can be effectively fixed simply by pressing it inward, significantly improving work efficiency. The lower end of the limiting link is movably connected to the second movable gear, and the end of the limiting link away from the second movable gear is fixedly equipped with a limiting component, which contains a buffer spring.

[0011] Furthermore, a protective layer is provided on the outer side of the limiting member, and the limiting member in the fixed limiting assembly is installed in conjunction with the capacitor.

[0012] Furthermore, an insulating sealing layer is installed on the upper side of the housing, and the upper outer surface of the capacitor is fitted with the insulating sealing layer.

[0013] Furthermore, an installation frame is installed inside the housing, and the outer side of the installation frame is fixedly connected to the inner wall of the housing via an installation rod.

[0014] Furthermore, a cooling protection device is fixedly installed on the inner wall of the mounting frame. The cooling protection device includes a coolant bladder and a positioning guide mechanism. The coolant bladder is disposed between the positioning guide mechanism. By setting the coolant bladder, the capacitor inside the cooling protection device can be cooled down to prevent it from exploding due to excessive temperature, thus further improving the safety of the device.

[0015] Furthermore, the positioning and guiding mechanism includes a mounting air cushion, a connecting rod, and guide balls. The mounting air cushion is installed on the inner wall of the cooling and protection device, and a connecting rod is fixedly connected to the outer side of the mounting air cushion. A guide ball is installed at the shaft end of the connecting rod. The force between the connecting rod and the mounting air cushion keeps the guide ball in a taut state, thereby effectively using the guide ball to fix and clamp the capacitor. This design allows for the effective clamping of capacitors of different sizes, further improving the safety of the equipment. Beneficial effects

[0016] Compared with the prior art, the present invention provides an aluminum shell structure for aluminum electrolytic capacitors, which has the following advantages:

[0017] 1. The aluminum electrolytic capacitor uses an aluminum shell structure. The device uses a positioning device to fix the capacitor securely by cooperating with the fixing clips, positioning linkage components and fixing limit components. This makes the capacitor assembly and disassembly process simple and efficient. It can be effectively fixed by simply pressing it inward, which significantly improves work efficiency.

[0018] 2. The aluminum electrolytic capacitor uses an aluminum shell structure. The device is equipped with a cooling protection device. Due to the long-term operation of the capacitor, it may explode due to excessive internal temperature. By setting up a coolant bladder, the capacitor inside the cooling protection device can be cooled down to prevent it from exploding due to excessive temperature. This further improves the safety of the device and reduces its safety hazards.

[0019] 3. The aluminum electrolytic capacitor uses an aluminum shell structure. The device effectively buffers and reduces vibration of the capacitor body by setting up a protective shell and a vibration damping spring. It can comprehensively and effectively protect the capacitor and prevent it from being hit, which would affect the service life of the device. This effectively avoids the situation where external pressure squeezes the capacitor and causes damage, and further improves the protective performance of the device.

[0020] 4. The aluminum electrolytic capacitor uses an aluminum shell structure. The device is equipped with a positioning and guiding mechanism. During the process of the capacitor passing through the cooling protection device, the force of the guide ball contacting the capacitor, combined with the force of the connecting rod and the mounting air cushion, keeps the guide ball in a taut state. This effectively uses the guide ball to fix and clamp the capacitor. This setting can effectively clamp capacitors of different sizes, while avoiding dangerous accidents and further improving the safety of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0023] Figure 2 This is a front sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the three-dimensional installation structure of the capacitor and the cooling protection device of the present invention.

[0025] Figure 4 This is a schematic diagram of the three-dimensional installation structure of the mounting frame and cooling protection device of the present invention.

[0026] Figure 5 This is the present invention. Figure 2 Enlarged diagram of part A in the middle.

[0027] Figure 6 This is the present invention. Figure 2 A schematic diagram of a local part of the structure.

[0028] Figure 7 This is the present invention. Figure 6 Enlarged schematic diagram of part B in the middle.

[0029] Figure 8 This is a schematic diagram of the cooling and protection device of the present invention.

[0030] Figure 9 This is the present invention. Figure 8 Enlarged diagram of section C.

[0031] In the diagram: 1. Shell; 2. Protective outer shell; 3. Buffer plate; 31. Vibration damping spring; 4. Insulating sealing layer; 5. Capacitor; 6. Positioning device; 61. Elastic support air cushion; 62. Fixing clip; 63. Positioning linkage assembly; 631. First movable gear; 632. Movable toothed plate; 633. Second movable gear; 64. Fixed limit assembly; 641. Limiting link; 642. Limiting component; 643. Buffer spring; 7. Mounting frame; 71. Mounting rod; 8. Cooling protection device; 81. Coolant bladder; 82. Positioning guide mechanism; 821. Mounting air cushion; 822. Connecting rod; 823. Guide ball. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. For the convenience of description, the words "upper", "lower", "left", and "right" appearing below only indicate that they are consistent with the upper, lower, left, and right directions of the accompanying drawings themselves, and do not limit the structure. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 9 An aluminum shell structure for an aluminum electrolytic capacitor includes a shell 1, a protective shell 2 installed on the outer side of the shell 1, a buffer plate 3 installed between the shell 1 and the protective shell 2, and a vibration damping spring 31 installed between the buffer plates 3. A capacitor 5 is installed inside the shell 1. A positioning device 6 is installed at the bottom of the inner wall of the shell 1. The positioning device 6 includes an elastic support air cushion 61, a fixing clip 62, a positioning linkage component 63, and a fixing limit component 64. This device securely fixes the capacitor 5 and simplifies and simplifies the assembly and disassembly process of the capacitor 5. It can be effectively fixed by simply pressing it inward, which significantly improves work efficiency. The elastic support air cushion 61 is located at the bottom of the inner wall of the positioning device 6. A fixing clip 62 is fixedly installed on the upper side of the elastic support air cushion 61. The fixing clip 62 has a groove that mates with the capacitor 5. Positioning linkage components 63 are installed on both the left and right sides of the fixing clip 62. A fixing limit component 64 is installed on the upper side of the positioning linkage component 63.

[0034] Furthermore, the positioning linkage component 63 includes a first movable gear 631, a movable toothed plate 632, and a second movable gear 633. During the downward movement of the fixed clamp 62, the racks on both sides of the fixed clamp 62 mesh with the first movable gear 631 to drive the movable toothed plate 632 to move upward. At the same time, the movable toothed plate 632 meshes with the second movable gear 633, thereby driving the fixed limiting component 64 to contact the capacitor 5. Racks are provided on both the left and right sides of the fixed clamp 62. The fixed clamp 62 meshes with the first movable gear 631 through the racks. The side of the first movable gear 631 away from the fixed clamp 62 meshes with the movable toothed plate 632. The movable toothed plate 632 is meshed with the second movable gear 633 on the side opposite the capacitor 5 and directly above the first movable gear 631.

[0035] Furthermore, both the upper and lower ends of the movable toothed plate 632 are fixedly connected to the interior of the positioning device 6 via springs, which facilitates the effective reset of the movable toothed plate 632.

[0036] Furthermore, the fixed limiting assembly 64 includes a limiting link 641, a limiting member 642, and a buffer spring 643. The fixed limiting assembly 64 contacts the capacitor 5, thereby fixing the capacitor 5 securely. This configuration simplifies and simplifies the assembly and disassembly process of the capacitor 5, as it can be effectively fixed simply by pressing it inward, significantly improving work efficiency. The lower end of the limiting link 641 is movably connected to the second movable gear 633, and the limiting member 642 is fixedly installed at the end of the limiting link 641 away from the second movable gear 633. The buffer spring 643 is installed in the limiting member 642.

[0037] Furthermore, a protective layer is provided on the outer side of the limiting member 642. The limiting member 642 in the fixed limiting assembly 64 is installed in conjunction with the capacitor 5. By providing a protective layer, the protection performance of the capacitor 5 can be effectively improved.

[0038] Furthermore, an insulating sealing layer 4 is installed on the upper side of the housing 1, and the upper outer surface of the capacitor 5 is fitted with the insulating sealing layer 4.

[0039] Furthermore, an installation frame 7 is installed inside the housing 1, and the outer side of the installation frame 7 is fixedly connected to the inner wall of the housing 1 via an installation rod 71.

[0040] Furthermore, a cooling protection device 8 is fixedly installed on the inner wall of the mounting frame 7. The cooling protection device 8 includes a coolant bladder 81 and a positioning guide mechanism 82. The coolant bladder 81 is arranged between the positioning guide mechanism 82. By setting the coolant bladder 81, the capacitor 5 inside the cooling protection device 8 can be cooled down to prevent it from exploding due to excessive temperature. This further improves the safety of the device and reduces its safety hazards.

[0041] Furthermore, the positioning and guiding mechanism 82 includes a mounting air cushion 821, a connecting rod 822, and a guide ball 823. The mounting air cushion 821 is installed on the inner wall of the cooling and protection device 8, and the connecting rod 822 is fixedly connected to the outer side of the mounting air cushion 821. The guide ball 823 is installed at the shaft end of the connecting rod 822. Through the force of the guide ball 823 in contact with the capacitor 5, and the force of the connecting rod 822 and the mounting air cushion 821, the guide ball 823 is kept in a taut state, thereby effectively using the guide ball 823 to fix and clamp the capacitor 5. This setting can effectively clamp capacitors 5 of different sizes, while avoiding dangerous accidents and further improving the safety of the equipment.

[0042] The specific usage and function of this embodiment are as follows:

[0043] Working principle: During use, the aluminum electrolytic capacitor 5 has an aluminum shell structure. Currently, during the installation of the capacitor 5, it is placed downwards directly above the shell 1. When the capacitor 5 passes through the cooling protection device 8, the force of the guide ball 823 contacting the capacitor 5 drives the connecting rod 822 to move inwards, while simultaneously squeezing the mounting air pad 821. The force of the connecting rod 822 and the mounting air pad 821 keeps the guide ball 823 in a taut state, thus effectively using the guide ball 823 to fix and clamp the capacitor 5. This setting can effectively clamp capacitors 5 of different sizes, while avoiding dangerous accidents and further improving the safety of the equipment.

[0044] As the capacitor 5 moves inward, its bottom end contacts the fixing clip 62 in the positioning device 6. The clip 62 on top of the fixing clip 62 engages with the capacitor 5. Based on the pressure applied by the user, the capacitor 5 causes the fixing clip 62 to move downward, simultaneously compressing the elastic support air cushion 61. During the downward movement of the fixing clip 62, the racks on both sides of the fixing clip 62 mesh with the first movable gear 631, causing the movable gear plate 632 to move upward. At the same time, the movable gear plate 632 meshes with the second movable gear 633, thereby causing the fixing limit component 64 to contact the capacitor 5, thus fixing the capacitor 5 securely. This design simplifies and simplifies the assembly and disassembly process of the capacitor 5, as it can be effectively fixed simply by pressing it inward, significantly improving work efficiency.

[0045] Furthermore, due to uncontrollable external factors, when the device is subjected to external impact, the protective shell 2, buffer plate 3, and vibration damping spring 31 work together to effectively buffer and dampen the capacitor 5 body, providing comprehensive and effective protection for the capacitor 5 and preventing it from being damaged by external pressure. This further enhances the protective performance of the device. Moreover, due to the long-term operation of the capacitor 5, it may explode due to excessive internal temperature. By setting up a coolant bladder 81, the capacitor 5 inside the cooling protection device 8 can be cooled and dissipated, preventing it from exploding due to excessive temperature. This further enhances the safety of the device and reduces its safety hazards.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An aluminum casing structure for an aluminum electrolytic capacitor, comprising a casing (1), characterized in that: A protective shell (2) is installed on the outside of the housing (1), a buffer plate (3) is installed between the housing (1) and the protective shell (2), a damping spring (31) is installed between the buffer plates (3), and a capacitor (5) is installed inside the housing (1). The bottom of the inner wall of the housing (1) is provided with a positioning device (6), which includes an elastic support air cushion (61), a fixing clip (62), a positioning linkage component (63), and a fixing limit component (64). The elastic support air cushion (61) is set at the bottom of the inner wall of the positioning device (6). A fixing clip (62) is fixedly installed on the upper side of the elastic support air cushion (61). A groove is opened in the fixing clip (62), and the groove is installed in conjunction with the capacitor (5). Positioning linkage components (63) are installed on both the left and right sides of the fixing clip (62). A fixing limit component (64) is installed on the upper side of the positioning linkage component (63). An installation frame (7) is installed inside the housing (1). The outer side of the installation frame (7) is fixedly connected to the inner wall of the housing (1) by an installation rod (71). A cooling protection device (8) is fixedly installed on the inner side wall of the installation frame (7). The cooling protection device (8) includes a coolant bladder (81) and a positioning guide mechanism (82). The coolant bladder (81) is arranged between the positioning guide mechanism (82). The positioning linkage component (63) includes a first movable gear (631), a movable toothed plate (632), and a second movable gear (633). The fixed clip (62) is provided with racks on both the left and right sides. The fixed clip (62) is connected to the first movable gear (631) by the racks. The side of the first movable gear (631) away from the fixed clip (62) is connected to the movable tooth plate (632). The movable tooth plate (632) is connected to the second movable gear (633) on the side opposite to the capacitor (5) and directly above the first movable gear (631). The positioning and guiding mechanism (82) includes a mounting air cushion (821), a connecting rod (822), and guide balls (823). The mounting air cushion (821) is installed on the inner wall of the cooling protection device (8). A connecting rod (822) is fixedly connected to the outer side of the mounting air cushion (821). A guide ball (823) is installed on the shaft end of the connecting rod (822).

2. The aluminum casing structure for an aluminum electrolytic capacitor as described in claim 1, characterized in that: Both ends of the movable toothed plate (632) are fixedly connected to the interior of the positioning device (6) by springs.

3. The aluminum casing structure for an aluminum electrolytic capacitor as described in claim 1, characterized in that: The fixed limiting assembly (64) includes a limiting link (641), a limiting member (642), and a buffer spring (643). The lower end of the limiting link (641) is movably connected to the second movable gear (633). A limiting component (642) is fixedly installed at the end of the limiting link (641) away from the second movable gear (633). A buffer spring (643) is installed in the limiting component (642).

4. The aluminum casing structure for an aluminum electrolytic capacitor as described in claim 3, characterized in that: The outer side of the limiting member (642) is provided with a protective layer, and the limiting member (642) in the fixed limiting assembly (64) is installed in conjunction with the capacitor (5).

5. The aluminum casing structure for an aluminum electrolytic capacitor as described in claim 1, characterized in that: An insulating sealing layer (4) is installed on the upper side of the housing (1), and the upper outer surface of the capacitor (5) is fitted with the insulating sealing layer (4).

Citation Information

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