Anti-extrusion capacitor with heat dissipation function

Abstract

The utility model discloses an anti-extrusion capacitor with a heat dissipation function, which relates to the technical field of capacitors and comprises a shell, a heat dissipation module arranged on the inner top surface of the shell, a protective shell arranged in the shell, an anti-pressing plate arranged at the bottom end of the protective shell, a circle of limiting blocks arranged on the peripheral side of the top surface of the anti-pressing plate, and an abutting ring correspondingly abutting against the limiting blocks and arranged at the bottom end of the protective shell. The limiting block is sleeved with a protective shell, a core bag is arranged in the protective shell, and a positive electrode and a negative electrode are arranged on the two sides of the bottom face of the core bag respectively. According to the utility model, through the cooperation of the heat dissipation module and the heat dissipation copper sheet, the heat dissipation copper sheet directly abuts against the top surface of the core cladding, so that heat generated by the core cladding can be quickly conducted to the heat dissipation fins, the heat dissipation area is increased by using the heat dissipation fins, the heat dissipation efficiency is improved, and the function of efficient heat dissipation can be realized; finally, the problems of low heat dissipation efficiency and weak extrusion resistance of a traditional capacitor are solved, the service life of the capacitor is prolonged, and the reliability of the capacitor is improved.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to a crush-resistant capacitor with heat dissipation function. Background Technology

[0002] In the operation of electronic devices, capacitors, as a basic electronic component, are widely used in circuits for functions such as filtering, energy storage, and coupling. As electronic devices develop towards miniaturization and high power, the performance requirements for capacitors are becoming increasingly stringent.

[0003] Existing capacitors mostly rely on natural heat dissipation from their casings, which is insufficient to meet the heat dissipation requirements of high-power operation. This leads to the continuous accumulation of heat generated during operation, causing the internal temperature to rise steadily. This not only seriously affects electrical performance and service life, but also poses safety hazards such as bulging or even explosion in scenarios like high-frequency switching power supplies, as the heat cannot be dissipated in time. On the other hand, during the assembly, transportation, and use of electronic equipment, traditional capacitors lack effective protective measures for their casings and internal structures, making them highly susceptible to problems such as casing deformation and core damage under external pressure and collisions. This is especially true in compact devices, where limited space further increases the risk of compression, leading to performance degradation, reduced reliability, and an inability to adapt to the complex application environments of modern electronic equipment. Therefore, improvements are needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat dissipation-resistant, compression-resistant capacitor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure-resistant capacitor with heat dissipation function, comprising a shell, a heat dissipation module provided on the top surface of the shell, a protective shell provided inside the shell, a pressure-resistant plate provided at the bottom of the protective shell, a limiting block provided around the top surface of the pressure-resistant plate, an abutting ring provided at the bottom of the protective shell corresponding to the limiting block, the limiting block being sleeved inside the protective shell, a core package provided inside the protective shell, and a positive electrode and a negative electrode respectively provided on both sides of the bottom surface of the core package.

[0006] Preferably, both the positive and negative electrodes pass through the bottom surface of the pressure-resistant plate, and insulating sleeves are fitted onto the positive and negative electrodes. The top end of the insulating sleeve abuts against the bottom surface of the core package, and the bottom end of the insulating sleeve is located at the bottom surface of the pressure-resistant plate.

[0007] Preferably, a buffer sleeve is filled between the outer shell and the protective shell.

[0008] Preferably, a plurality of washers are evenly distributed on the top surface of the anti-pressure plate, and a spring is fixedly connected to the washers, with the top end of the spring being fixedly connected to the bottom surface of the core package.

[0009] Preferably, the heat dissipation module includes heat dissipation fins, and a heat dissipation copper sheet is fixedly attached to the bottom surface of the heat dissipation fins. The periphery of the heat dissipation copper sheet is fixedly attached to the protective shell, and the bottom surface of the heat dissipation copper sheet abuts against the top surface of the core package.

[0010] Preferably, the top surface of the outer casing has through holes corresponding to the shape of the heat dissipation fins.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a heat dissipation module and a heat dissipation copper fin, allows the copper fin to directly abut against the top surface of the core package, facilitating the rapid conduction of heat generated by the core package to the heat dissipation fins. The heat dissipation fins increase the heat dissipation area, improving heat dissipation efficiency and thus achieving high-efficiency heat dissipation. Furthermore, through the cooperation of a buffer sleeve and a spring, the buffer sleeve fills the space between the outer shell and the protective shell, while the spring connects the pressure plate to the core package. This facilitates the dispersion and absorption of external force when subjected to compression, protecting the core package from damage and improving its compression resistance, thereby achieving the protective function for the capacitor. Ultimately, this solves the problems of low heat dissipation efficiency and weak compression resistance in traditional capacitors, improving the capacitor's service life and reliability. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a second-view schematic diagram of the overall structure proposed in this utility model;

[0015] Figure 3 This is a first-view schematic diagram of the overall cross-sectional structure proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the core package proposed in this utility model.

[0017] The numbers in the diagram are: 1. Outer shell; 2. Positive electrode; 3. Heat dissipation module; 4. Insulating sleeve; 5. Negative electrode; 6. Buffer sleeve; 7. Anti-pressure plate; 8. Spring; 9. Washer; 10. Heat dissipation fins; 11. Heat dissipation copper sheet; 12. Limiting block; 13. Core package. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figure 1-4 This utility model discloses a pressure-resistant capacitor with heat dissipation function, comprising a shell 1, a heat dissipation module 3 on the top surface of the shell 1, a protective shell inside the shell 1, a pressure-resistant plate 7 at the bottom of the protective shell, a limiting block 12 around the top surface of the pressure-resistant plate 7, and an abutment ring at the bottom of the protective shell corresponding to the limiting block 12. The limiting block 12 is sleeved inside the protective shell, and a core package 13 is provided inside the protective shell. A positive electrode 2 and a negative electrode 5 are respectively provided on both sides of the bottom surface of the core package 13. The shell 1 is made of high-strength engineering plastic material, which has good pressure resistance and wear resistance, forming a double-layer protective structure with the internal protective shell. The pressure-resistant plate 7, the limiting block 12, and the abutment ring cooperate to precisely limit the position of the protective shell, preventing it from shifting under force, effectively improving the stability of the internal structure of the capacitor, providing a reliable installation environment for the core package 13, and initially realizing the protection function of the core package 13. Both the positive electrode 2 and the negative electrode 5 pass through the bottom surface of the pressure-resistant plate 7. Insulating sleeves 4 are fitted onto electrode 2 and negative electrode 5. The top of insulating sleeve 4 abuts against the bottom surface of core package 13, and the bottom of insulating sleeve 4 is located at the bottom surface of pressure plate 7. Electrode 2 and negative electrode 5 are made of high-purity copper with excellent conductivity. They pass through the bottom surface of pressure plate 7 to achieve a stable connection with the external circuit. Insulating sleeve 4 is made of polytetrafluoroethylene, which has excellent insulation performance and chemical stability. It fits tightly onto the electrode, effectively isolating the electrode from contact with other components, preventing leakage, improving the safety and reliability of the capacitor's electrical connection, and ensuring stable operation of the capacitor. A buffer sleeve 6 is filled between the outer shell 1 and the protective shell. The buffer sleeve 6 is made of silicone rubber, which has high elasticity and good buffering performance. It is filled between the outer shell 1 and the protective shell. When the capacitor is subjected to external pressure or collision, the buffer sleeve 6 can effectively absorb and disperse the impact force, minimizing the impact of external force on the internal core package 13, and significantly enhancing the capacitor's resistance to compression.

[0020] In this utility model, multiple washers 9 are evenly distributed on the top surface of the pressure-resistant plate 7, and springs 8 are fixedly connected to the washers 9. The top of the springs 8 is fixedly connected to the bottom surface of the core package 13. The springs 8 are made of high-elasticity stainless steel, with strong resilience and good fatigue resistance. They are installed between the pressure-resistant plate 7 and the core package 13 in conjunction with the washers 9. When the capacitor is subjected to pressure in the vertical direction, the springs 8 undergo elastic deformation to absorb the impact force, while the washers 9 protect the surfaces of the pressure-resistant plate 7 and the core package 13 and prevent direct wear of the springs 8. This effectively buffers the external force in the vertical direction, further improving the capacitor's ability to resist compression and ensuring the safety of the core package 13 under complex stress environments. The heat dissipation module 3 includes heat dissipation fins 10, and a heat dissipation copper sheet 11 is fixedly connected to the bottom surface of the heat dissipation fins 10. The periphery of the heat dissipation copper sheet 11 is fixedly connected to the protective shell, and the bottom surface of the heat dissipation copper sheet 11 abuts against the top surface of the core package 13. The heat dissipation copper sheet 11 is made of copper, which has extremely high elasticity. The thermal conductivity of the heat sink is high, and it is in direct contact with the top surface of the core package 13, which can quickly conduct the heat generated by the core package 13 to the heat sink fins 10. The heat sink fins 10 are made of aluminum alloy, which is lightweight and has a large heat dissipation area. It dissipates heat through heat exchange with the air. The combination of the two greatly improves the heat dissipation efficiency of the capacitor, reduces the temperature of the core package 13 in time, and avoids the impact of heat accumulation on the performance and life of the capacitor. The top surface of the outer shell 1 has through holes corresponding to the shape of the heat sink fins 10. The through holes on the top surface of the outer shell 1 are adapted to the shape of the heat sink fins 10, which facilitates the formation of convection channels between the inside of the capacitor and the outside. During the heat dissipation process of the heat sink fins 10, the through holes accelerate the air circulation, so that the heat can be dissipated to the outside environment more quickly, further enhancing the heat dissipation effect of the heat dissipation module 3, ensuring that the core package 13 is always within a good operating temperature range, and improving the overall performance and stability of the capacitor.

[0021] Working Principle: In use, the heat generated by the core package 13 is rapidly conducted through the heat dissipation copper fins 11 in direct contact with it. The excellent thermal conductivity of the copper fins 11 allows the heat to be quickly transferred to the heat dissipation fins 10. The heat dissipation fins 10 are in contact with the outside air through the through holes on the top surface of the outer shell 1, increasing the heat dissipation area and accelerating the dissipation of heat. This ensures that the heat generated by the core package 13 is dissipated in a timely manner, guaranteeing that the core package 13 operates at a suitable temperature. When subjected to external pressure, especially in the vertical direction, the spring 8 on the pressure plate 7 will undergo elastic deformation under pressure, thus dissipating the heat generated by the core package 13. The impact force is converted into the elastic potential energy of the spring 8, which buffers the influence of external force on the core package 13. If subjected to lateral pressure, the buffer sleeve 6 between the outer shell 1 and the protective shell plays a key role. Its good elasticity and toughness can effectively absorb and disperse the impact force transmitted from the side, slowing down its transmission to the inside. At the same time, the limiting block 12 and the abutment ring are tightly fitted to limit the excessive displacement of the protective shell in the horizontal direction, maintain the stability of the internal structure, and prevent the core package 13 from being damaged by lateral pressure. The positive electrode 2 and the negative electrode 5 pass through the bottom surface of the pressure plate 7 to ensure that the capacitor is properly connected to the external circuit. At this point, the device is in use.

[0022] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crush-resistant capacitor with heat dissipation function, comprising a housing (1), characterized in that: A heat dissipation module (3) is provided on the top surface of the outer shell (1). A protective shell is provided inside the outer shell (1). A pressure-resistant plate (7) is provided at the bottom of the protective shell. A limiting block (12) is provided around the top surface of the pressure-resistant plate (7). A corresponding abutting ring is provided at the bottom of the protective shell to abut the limiting block (12). The limiting block (12) is sleeved inside the protective shell. A core package (13) is provided inside the protective shell. A positive electrode (2) and a negative electrode (5) are provided on both sides of the bottom surface of the core package (13).

2. The anti-squeezing capacitor with heat dissipation function according to claim 1, characterized in that: The positive electrode (2) and the negative electrode (5) both pass through the bottom surface of the pressure plate (7). An insulating sleeve (4) is fitted on the positive electrode (2) and the negative electrode (5). The top of the insulating sleeve (4) abuts against the bottom surface of the core package (13), and the bottom of the insulating sleeve (4) is located at the bottom surface of the pressure plate (7).

3. The anti-squeezing capacitor with heat dissipation function according to claim 2, characterized in that: A buffer sleeve (6) is filled between the outer shell (1) and the protective shell.

4. A compression-resistant capacitor with heat dissipation function according to claim 3, characterized in that: The top surface of the pressure plate (7) is provided with a plurality of washers (9), and a spring (8) is fixedly connected to the washers (9). The top of the spring (8) is fixedly connected to the bottom surface of the core package (13).

5. A compression-resistant capacitor with heat dissipation function according to claim 4, characterized in that: The heat dissipation module (3) includes heat dissipation fins (10), and a heat dissipation copper sheet (11) is fixedly attached to the bottom surface of the heat dissipation fins (10). The periphery of the heat dissipation copper sheet (11) is fixedly attached to the protective shell, and the bottom surface of the heat dissipation copper sheet (11) abuts against the top surface of the core package (13).

6. A compression-resistant capacitor with heat dissipation function according to claim 5, characterized in that: The top surface of the outer shell (1) has through holes corresponding to the shape of heat dissipation fins (10).

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