Capacitor with protection mechanism

By incorporating heat sinks and a collar mechanism on the capacitor, the problems of capacitor tilting after welding and low heat dissipation efficiency are solved, achieving stable terminals and efficient heat dissipation, and extending the capacitor's service life.

CN224554174UActive Publication Date: 2026-07-24NORTHEASTERN UNIV CHINA
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHEASTERN UNIV CHINA
Filing Date
2026-06-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing capacitors are prone to tilting after welding, the terminals are easily damaged by external forces, and the heat dissipation efficiency is low, leading to heat accumulation and excessive temperature.

Method used

The capacitor is fixed by a heat sink assembly and a collar mechanism. The heat sink improves heat dissipation efficiency, and the collar mechanism protects the terminals from bending and breakage.

Benefits of technology

It effectively prevents damage to the terminals, improves heat dissipation efficiency, avoids heat buildup, and extends the lifespan of the capacitor.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224554174U_ABST
    Figure CN224554174U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of capacitor with protection mechanism, it is related to capacitor technical field, including capacitor main body, capacitor main body outside is provided with several groups of fin, the bottom edge of capacitor main body is threadedly sleeved with collar mechanism, collar mechanism includes symmetrically arranged fixed upper ring, and the lower side of fixed upper ring is fixedly connected with side column, and the midpoint of side column is installed with clamping ring on both sides, and the bottom of capacitor main body is electrically connected with pole, and side column is sleeved in the outside of pole, and the bottom of side column is fixedly connected with fixed lower ring. Fin is assembled in the edge of capacitor body, does not occupy capacitor middle space, edge adheres fixedly firm, cooperate heat-conducting medium can reduce thermal resistance, evenly disperse local high temperature, delay capacitor medium ageing;The setting of arc-shaped side column and clamping ring cooperation installation is carried out edge physical protection to pole, can firm pole structure, avoid bending, fracture, fragmentation problem in installation and equipment vibration process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to a capacitor with a protective mechanism. Background Technology

[0002] Capacitors are passive electronic components that store electrical charge. They can store and release electrical energy temporarily and have the characteristics of passing AC and blocking DC. They are commonly used in circuits for filtering, voltage stabilization, signal coupling, and can also compensate for reactive power and stabilize voltage. They are widely used in electronic equipment, power systems and various electrical devices.

[0003] In the prior art, capacitors with protective mechanisms are prone to tilting after being soldered onto a circuit board due to human soldering operations. Once subjected to external force, the bottom terminals of the capacitor will be pulled under pressure, leading to bulging and breakage. Furthermore, during operation, the capacitor is affected by factors such as equivalent series resistance and high-frequency charging and discharging, which continuously generate heat internally. The heat dissipation relies solely on the shell for natural dissipation, resulting in a small heat dissipation area and low heat dissipation efficiency, which can easily cause heat accumulation and excessive local temperature rise.

[0004] Therefore, this application proposes a capacitor with a protective mechanism to solve the problems mentioned above, such as the capacitor's terminals being easily bent and broken due to vibration during installation, and the capacitor relying on natural heat dissipation during operation leading to heat accumulation and excessively high internal temperature. Utility Model Content

[0005] In view of the above-mentioned technical problems of existing capacitors with protective mechanisms, such as easy tilting after welding, easy damage to the terminals caused by external force, and relying solely on the natural heat dissipation of the shell, resulting in small heat dissipation area, low efficiency, and easy heat accumulation and excessive temperature rise, a capacitor with a protective mechanism is provided.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A capacitor with a protective mechanism includes a capacitor body, a plurality of heat sinks are disposed on the outside of the capacitor body, a collar mechanism is threadedly sleeved on the bottom edge of the capacitor body, the collar mechanism includes a symmetrically arranged upper fixed ring, the lower part of the upper fixed ring is fixedly connected to a side post, clamping rings are installed on the upper and lower sides of the midpoint of the side post, the bottom of the capacitor body is electrically connected to an electrode post, the side post is sleeved on the outside of the electrode post, and a lower fixed ring is fixedly connected to the bottom of the side post.

[0008] Furthermore, the capacitor body is fitted with a ring, the inner wall of the ring is threaded, and the outer wall of the ring has multiple sets of grooves. Each set of grooves has a mounting block installed horizontally inside, and limit blocks are installed on the upper and lower sides of the mounting block respectively.

[0009] Furthermore, the heat sink has symmetrical slots on its mounting side, the mounting block and the limiting block are located inside the slots, and the limiting block is made of insulating plastic with elastic deformation capability.

[0010] Furthermore, the inner wall of the collar mechanism is threaded, and connecting rods are fixedly installed on both sides of the inner side of the collar mechanism. One side of the connecting rod is fixedly connected to the upper fixed ring. The upper fixed ring is located at the bottom of the capacitor body and is screwed to the top of the pole.

[0011] Furthermore, the side post is located at the outer edge of the pole post, and a fixing lower ring is fixedly connected to the bottom of the side post. The fixing lower ring is sleeved on the bottom of the pole post by two screws.

[0012] Furthermore, connecting plates are connected to both sides of the clamping ring, one side of the connecting plate is connected to the connecting ring, a plate is installed on one side of the connecting ring, and a bolt is inserted through the middle of the plate.

[0013] Compared with the prior art, the present invention has the following advantages: 1. When a capacitor with a protective mechanism is in operation, the heat sink is assembled on the edge of the capacitor body, without occupying the space in the middle of the capacitor. The edge is firmly fixed and secure. With the help of the heat-conducting medium, it can reduce thermal resistance, evenly distribute local high temperature, and delay the aging of the capacitor medium.

[0014] 2. When a capacitor with a protective mechanism is in operation, the arc-shaped side posts and clamping rings work together to provide physical protection for the edges of the pole, which can stabilize the pole structure and prevent bending, breakage, or cracking during installation and equipment vibration, thus reducing the probability of pole damage. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the collar mechanism of this utility model; Figure 3 This is a schematic diagram of the clamping ring structure of this utility model; Figure 4 This is a schematic diagram of the main structure of the capacitor of this utility model.

[0017] In the diagram: 1. Capacitor body; 11. Heat sink; 12. Slot; 13. Groove; 14. Mounting block; 15. Limiting block; 2. Collar mechanism; 21. Connecting rod; 22. Upper fixing ring; 23. Screw one; 24. Side post; 25. Clamping ring; 26. Lower fixing ring; 27. Screw two; 28. Connecting plate; 29. ​​Connecting ring; 210. Plate; 211. Bolt; 3. Terminal post. Detailed Implementation

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] Example 1: This example aims to address the problem that capacitors relying solely on their casing for heat dissipation during use can lead to slow heat dissipation and heat buildup inside the device, thus affecting the capacitor's lifespan. Please refer to [link to relevant documentation]. Figure 1 and Figure 4 A capacitor with a protective mechanism includes a capacitor body 1. The capacitor body 1 includes several sets of heat sinks 11 externally mounted, and the heat sinks 11 are symmetrically provided with slots 12 on their sides. The heat sinks 11 are attached to the outside of the capacitor body 1. The high thermal conductivity of the metal of the heat sinks 11 is used to quickly conduct heat and dissipate the heat inside the capacitor body 1. A ring is sleeved in the middle of the outside of the capacitor body 1, and the edge of the ring is provided with a groove 13. The inner wall of the ring is threaded. A mounting block 14 is horizontally installed inside each set of grooves 13. Limiting blocks 15 are installed on both sides above the midpoint of the mounting block 14. The limiting block 15 is an elastic snap-fit ​​structure. The limiting block 15 adopts an elastic protrusion structure and is made of insulating plastic with elastic deformation capability. It is fixedly connected to the mounting block 14. When squeezed, it can shrink and deform inward. After being released, it automatically springs back to reset, realizing locking and unlocking. When installing the heat sink 11, the limiting block 15 is squeezed and contracted by the slot 12. After entering the slot 12, it automatically springs up and locks, making the heat sink 11 firmly fixed and not easy to loosen, while also facilitating disassembly and assembly.

[0023] like Figure 4 As shown, the mounting block 14 and the limiting block 15 are located inside the slot 12, and the limiting block 15 has an elastic function.

[0024] In this embodiment: the ring is threaded onto the outside of the capacitor body 1. The edge of the ring is provided with several sets of grooves 13. The position of each set of grooves 13 corresponds one-to-one with the position of the heat sink 11. When the heat sink 11 is installed, the slot 12 on one side of the heat sink 11 is located on one side of the mounting block 14 and the limiting block 15. The limiting block 15 is locked on the upper and lower sides of the slot 12 on the side of the heat sink 11, fixing each set of heat sink 11, so that the heat sink 11 and the outside of the capacitor body 1 are in contact. The structure is simple and compact, the edge fits and is fixed firmly, the high temperature inside the capacitor is evenly distributed, heat accumulation is avoided, and the heat dissipation efficiency is significantly improved.

[0025] Example 2: This example aims to address the problem that the terminal 3 is easily damaged by vibration during capacitor installation, leading to breakage, bending, or fracture. For details, please refer to [link to example]. Figures 1-3 The bottom edge of the capacitor body 1 is threaded with a collar mechanism 2. The collar mechanism 2 includes a fixed upper ring 22 symmetrically installed on both sides of the bottom end, and the lower part of the fixed upper ring 22 is fixedly connected to the arc-shaped side post 24. The side post 24 forms external protection for the pole 3, reducing deformation and breakage caused by vibration and compression. Clamping rings 25 are installed on the upper and lower sides of the midpoint of the side post 24. The inner wall of the collar mechanism 2 is threaded, and connecting rods 21 are fixedly installed on both sides of the bottom of the collar mechanism 2. One side of the connecting rod 21 is fixedly connected to the fixed upper ring 22. The fixed upper ring 22 is located at the bottom of the capacitor body 1 and is sleeved on the top of the pole 3. The fixed upper ring 22 and the fixed lower ring 26 are fixedly installed on the upper and lower sides of the pole 3, so that the pole 3 remains stable during assembly. Screws 23 are inserted inside the fixed upper ring 22. The bottom of the capacitor body 1 is electrically connected to the pole 3.

[0026] like Figures 1-3 As shown, the side post 24 is located at the outer edge of the pole post 3, and a fixing lower ring 26 is fixedly connected to the bottom of the side post 24. A screw 27 is inserted inside the fixing lower ring 26. The fixing lower ring 26 is sleeved on the bottom of the pole post 3. Connecting plates 28 are connected to both sides of the clamping ring 25, and one side of the connecting plate 28 is connected to the connecting ring 29. A plate 210 is installed on one side of the connecting ring 29, and a bolt 211 is inserted in the middle of the plate 210.

[0027] In this embodiment: the pole 3 is connected to the bottom of the capacitor body 1. A fixing upper ring 22 is provided at the top of the pole 3. The fixing upper ring 22 is installed at the bottom of the capacitor body 1 by screw 23 to fix the pole 3. Similarly, a fixing lower ring 26 is installed at the bottom of the pole 3. The fixing lower ring 26 is installed on the assembly equipment by screw 27 to fix the upper and lower ends of the entire pole 3, restrict the displacement of the pole 3, prevent cracking and damage, and ensure that the installation is neat and reliable, suitable for current safe operation. Clamping rings 25 are installed on the upper and lower sides of the midpoint of the side column 24. The side column 24 increases the stability of the pole 3. The clamping rings 25 are opened to both sides by the plate 210, thereby opening the connecting plate 28 and the connecting ring 29 to bind the outside of the pole 3. Then, bolts 211 are used to limit it, buffering the mechanical stress caused by equipment vibration, reducing fatigue damage at the root of the pole 3, and enhancing structural stability.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A capacitor with a protective mechanism, characterized in that, The capacitor body (1) includes a capacitor body (1) with several heat sinks (11) on its exterior. A collar mechanism (2) is threaded onto the bottom edge of the capacitor body (1). The collar mechanism (2) includes a fixed upper ring (22) arranged symmetrically. The lower part of the fixed upper ring (22) is fixedly connected to a side post (24). Clamping rings (25) are installed on the upper and lower sides of the midpoint of the side post (24). The bottom of the capacitor body (1) is electrically connected to a pole post (3). The side post (24) is sleeved on the outside of the pole post (3), and a fixed lower ring (26) is fixedly connected to the bottom of the side post (24).

2. The capacitor with a protective mechanism according to claim 1, characterized in that, The capacitor body (1) is fitted with a ring. The inner wall of the ring is threaded. The outer wall of the ring has multiple sets of grooves (13). Each set of grooves (13) has a mounting block (14) installed horizontally inside. Limiting blocks (15) are installed on the upper and lower sides of the mounting block (14).

3. The capacitor with a protective mechanism according to claim 2, characterized in that, The heat sink (11) has symmetrical slots (12) on the mounting side. The mounting block (14) and the limiting block (15) are located inside the slots (12), and the limiting block (15) is made of insulating plastic with elastic deformation capability.

4. The capacitor with a protective mechanism according to claim 1, characterized in that, The inner wall of the collar mechanism (2) is threaded, and connecting rods (21) are fixedly installed on both sides of the inner side of the collar mechanism (2). One side of the connecting rod (21) is fixedly connected to the upper fixed ring (22). The upper fixed ring (22) is located at the bottom of the capacitor body (1), and the upper fixed ring (22) is sleeved on the top of the pole post (3) by screw one (23).

5. The capacitor with a protective mechanism according to claim 1, characterized in that, The side post (24) is located at the outer edge of the pole post (3), and a fixing lower ring (26) is fixedly connected to the bottom of the side post (24). The fixing lower ring (26) is sleeved on the bottom of the pole post (3) by screw two (27).

6. The capacitor with a protective mechanism according to claim 1, characterized in that, The clamping ring (25) is connected to two sides by connecting plates (28), one side of the connecting plate (28) is connected to the connecting ring (29), and a plate (210) is installed on one side of the connecting ring (29), with a bolt (211) inserted in the middle of the plate (210).