Small volume electrolytic capacitor with good heat dissipation

Abstract

The utility model relates to electrolytic capacitor technical field, concretely is a small volume electrolytic capacitor with good heat dissipation, the utility model discloses an electrolytic capacitor body, the top of electrolytic capacitor body is installed with two pins, the surface of electrolytic capacitor body is covered with heat dissipation shell, the surface of heat dissipation shell is fixedly connected with adsorption piece, one side of adsorption piece is adsorbed and is connected with magnetic attraction piece, one side of magnetic attraction piece is fixedly connected with shell cover, the surface of shell cover is equipped with two through -hole, and the through -hole is slidably connected with pin, the bottom of heat dissipation shell is equipped with heat dissipation hole, the inner wall of heat dissipation shell is fixedly connected with a plurality of heat conduction bosses, and the bottom of heat conduction boss and electrolytic capacitor body abuts. Solveed the low heat dissipation efficiency, the complex structure, the installation inconvenience and so on of the existing small volume electrolytic capacitor heat dissipation structure, cannot satisfy the problem of actual use demand.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic capacitor technology, and in particular to a small-volume electrolytic capacitor with good heat dissipation. Background Technology

[0002] Electrolytic capacitors are commonly used electronic components in electronic devices, generating heat during operation. As electronic devices become increasingly miniaturized and integrated, the size requirements for electrolytic capacitors are becoming smaller. However, small size often leads to heat dissipation difficulties, and excessively high temperatures can affect the performance and lifespan of electrolytic capacitors, even causing malfunctions. Currently, existing heat dissipation structures for small-sized electrolytic capacitors suffer from low heat dissipation efficiency, complex structures, and inconvenient installation, failing to meet practical application requirements.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing heat dissipation structures of small-volume electrolytic capacitors have problems such as low heat dissipation efficiency, complex structure, and inconvenient installation, which cannot meet the actual use requirements; therefore, in order to solve the above problems, a small-volume electrolytic capacitor with good heat dissipation is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing small-volume electrolytic capacitor heat dissipation structures, such as low heat dissipation efficiency, complex structure, and inconvenient installation, which fail to meet practical application requirements. Therefore, this invention proposes a small-volume electrolytic capacitor with good heat dissipation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a small-volume electrolytic capacitor with good heat dissipation, comprising an electrolytic capacitor body, two pins mounted on the top of the electrolytic capacitor body, a heat dissipation shell covering the surface of the electrolytic capacitor body, an adsorption plate fixedly connected to the surface of the heat dissipation shell, a magnetic adsorption plate adsorbed on one side of the adsorption plate, a shell cover fixedly connected to one side of the magnetic adsorption plate, two through holes opened on the surface of the shell cover, the through holes being slidably connected to the pins, and heat dissipation holes opened on the bottom surface of the heat dissipation shell.

[0006] The effects achieved by the above components are as follows: by covering the surface of the electrolytic capacitor body with a heat dissipation shell with heat dissipation holes, the heat generated during operation can be quickly dissipated, effectively improving the heat dissipation performance. At the same time, by using the adsorption of the adsorption sheet and the magnetic sheet, the shell cover and the heat dissipation shell can be easily disassembled and assembled, making it convenient to install, inspect and maintain the electrolytic capacitor body, thus improving the practicality of the device.

[0007] Preferably, the inner wall of the heat dissipation shell is fixedly connected with a plurality of heat-conducting protrusions, which abut against the bottom surface of the electrolytic capacitor body.

[0008] The effect achieved by the above components is as follows: the heat-conducting protrusions on the inner wall of the heat sink housing abut against the bottom surface of the electrolytic capacitor body, which can directly and quickly conduct the heat generated by the electrolytic capacitor body during operation to the heat sink housing through the heat-conducting protrusions, further enhancing the heat conduction efficiency. Together with the heat dissipation holes on the surface of the heat sink housing, a highly efficient heat conduction path is formed, improving the practicality of the device.

[0009] Preferably, a plurality of silicone strips are fixedly connected to the inner wall of the heat dissipation shell, and the silicone strips abut against the surface of the electrolytic capacitor body.

[0010] The effect achieved by the above components is as follows: the silicone strip on the inner wall of the heat sink housing is in close contact with the surface of the electrolytic capacitor body. On the one hand, the good elasticity of the silicone can play a buffering and shock-absorbing role, effectively reducing the impact of external vibration on the electrolytic capacitor and ensuring its structural stability. On the other hand, the silicone strip also has a certain thermal conductivity, which can help transfer the heat generated by the electrolytic capacitor to the heat sink housing, further improving the heat dissipation effect.

[0011] Preferably, a plurality of heat dissipation fins are fixedly connected to the surface of the heat dissipation shell, and the plurality of heat dissipation fins are distributed in a circumferential array on the heat dissipation shell.

[0012] The effects achieved by the above components are as follows: the heat dissipation fins distributed in a circular array on the surface of the heat dissipation shell greatly increase the contact area between the heat dissipation shell and the air, effectively improve the heat exchange efficiency, accelerate the heat dissipation speed, and at the same time, the circular array distribution makes the heat dissipation more uniform, enhancing the heat dissipation effect in all directions. This allows the electrolytic capacitor body to cool down quickly under high load conditions, improving the practicality of the device.

[0013] Preferably, a sealing gasket is fixedly connected to one side of the shell cover, and one side of the sealing gasket abuts against the heat dissipation shell.

[0014] The effect achieved by the above components is that by setting a sealing gasket, a seal is achieved when the cover is connected to the heat sink housing, preventing dust and other impurities from entering the heat sink housing and improving the practicality of the device.

[0015] Preferably, two conical sleeves are fixedly connected to the surface of the shell cover, the conical sleeves are slidably connected to the surface of the pins, and a sealing rubber ring is installed on the inner wall of the conical sleeve.

[0016] The effects achieved by the above components are as follows: the conical sleeve on the surface of the shell is slidably connected to the pin, and a sealing rubber ring is installed on the inner wall. On the one hand, the design of the conical sleeve can accurately position and guide the pin, making it easier for the pin to pass through the through hole for installation and improving assembly efficiency. On the other hand, the sealing rubber ring can effectively isolate external moisture, dust and other impurities, while enhancing the sealing and protection of the connection between the pin and the shell, and extending the service life of the electrolytic capacitor.

[0017] Preferably, the heat dissipation shell is made of aluminum alloy.

[0018] The effects achieved by the above components are as follows: the heat dissipation shell is made of aluminum alloy. With the excellent thermal conductivity of aluminum alloy, it can quickly absorb and conduct the heat generated by the electrolytic capacitor, significantly improving the heat dissipation efficiency. At the same time, aluminum alloy is lightweight and high-strength, which can effectively control the overall weight and volume of the electrolytic capacitor while ensuring good heat dissipation.

[0019] In this invention, by covering the surface of the electrolytic capacitor body with a heat dissipation shell containing heat dissipation holes, the heat generated during operation can be quickly dissipated, effectively improving heat dissipation performance. At the same time, by using the adsorption connection of the adsorption sheet and the magnetic sheet, the shell cover and the heat dissipation shell can be easily disassembled and assembled, facilitating the installation, inspection and maintenance of the electrolytic capacitor body, and improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the electrolytic capacitor body in this utility model;

[0022] Figure 3 This is a schematic diagram of the heat dissipation shell in this utility model;

[0023] Figure 4 This is a partial structural diagram of the heat dissipation shell in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the shell cover in this utility model.

[0025] Diagram Explanation: 1. Electrolytic capacitor body; 2. Leads; 3. Heat dissipation shell; 4. Adsorption plate; 5. Magnetic plate; 6. Shell cover; 7. Through hole; 8. Heat dissipation hole; 9. Thermal guide boss; 10. Silicone strip; 11. Heat dissipation fin; 12. Sealing gasket; 13. Conical sleeve; 14. Sealing rubber ring. Detailed Implementation

[0026] Reference Figure 1-5As shown, this utility model provides a technical solution: a small-volume electrolytic capacitor with good heat dissipation, including an electrolytic capacitor body 1, two leads 2 mounted on the top of the electrolytic capacitor body 1, a heat dissipation shell 3 covering the surface of the electrolytic capacitor body 1, an adsorption plate 4 fixedly connected to the surface of the heat dissipation shell, a magnetic adsorption plate 5 adsorbed on one side of the adsorption plate 4, a shell cover 6 fixedly connected to one side of the magnetic adsorption plate 5, two through holes 7 on the surface of the shell cover 6, the through holes 7 being slidably connected to the leads 2, and heat dissipation holes 8 on the bottom surface of the heat dissipation shell 3. By covering the surface of the electrolytic capacitor body 1 with a heat dissipation shell 3 having heat dissipation holes 8, the heat generated during operation can be quickly dissipated, effectively improving heat dissipation performance. At the same time, the adsorption connection between the adsorption plate 4 and the magnetic adsorption plate 5 enables convenient assembly and disassembly of the shell cover 6 and the heat dissipation shell 3, facilitating the installation, inspection, and maintenance of the electrolytic capacitor body 1, improving the practicality of the device. Several thermally conductive protrusions 9 are fixedly connected to the inner wall of the heat dissipation shell 3, and the thermally conductive protrusions 9 abut against the bottom surface of the electrolytic capacitor body 1. The heat-conducting protrusions 9 on the inner wall of the heat sink 3 abut against the bottom surface of the electrolytic capacitor body 1, allowing the heat generated by the electrolytic capacitor body 1 during operation to be quickly conducted to the heat sink 3 through the heat-conducting protrusions 9, further enhancing the heat conduction efficiency. Combined with the heat dissipation holes 8 on the surface of the heat sink 3, this forms an efficient heat conduction path, improving the practicality of the device. Several silicone strips 10 are fixedly connected to the inner wall of the heat sink 3, and these silicone strips 10 abut against the surface of the electrolytic capacitor body 1. The tight contact between the silicone strips 10 and the surface of the electrolytic capacitor body 1 utilizes the good elasticity of silicone to buffer and dampen shocks, effectively reducing the impact of external vibrations on the electrolytic capacitor and ensuring its structural stability. Furthermore, the silicone strips 10 also possess certain thermal conductivity, assisting in transferring the heat generated by the electrolytic capacitor to the heat sink 3, further improving the heat dissipation effect. Several heat dissipation fins 11 are fixedly connected to the surface of the heat sink 3, and these fins are distributed in a circumferential array on the heat sink 3. The heat dissipation fins 11 arranged in a circular array on the surface of the heat dissipation shell 3 significantly increase the contact area between the heat dissipation shell 3 and the air, effectively improving heat exchange efficiency and accelerating heat dissipation. Simultaneously, the circular array distribution makes heat dissipation more uniform, enhancing the overall heat dissipation effect and allowing the electrolytic capacitor body 1 to cool down quickly even under high load conditions, thus improving the practicality of the device. A sealing gasket 12 is fixedly connected to one side of the shell cover 6, and one side of the sealing gasket 12 abuts against the heat dissipation shell 3. By setting the sealing gasket 12, a sealing effect is achieved when the shell cover 6 is connected to the heat dissipation shell 3, preventing dust and other impurities from entering the interior of the heat dissipation shell 3, further improving the practicality of the device. Two conical sleeves 13 are fixedly connected to the surface of the shell cover 6, and the conical sleeves 13 are slidably connected to the surface of the pins 2. A sealing rubber ring 14 is installed on the inner wall of the conical sleeve 13.The tapered sleeve 13 on the surface of the cover 6 slides with the pin 2, and a sealing rubber ring 14 is installed on the inner wall. On the one hand, the design of the tapered sleeve 13 can accurately position and guide the pin 2, making it easy for the pin 2 to pass through the through hole 7 for installation, thus improving assembly efficiency. On the other hand, the sealing rubber ring 14 can effectively isolate external moisture, dust and other impurities, while enhancing the sealing and protection of the connection between the pin 2 and the cover 6, extending the service life of the electrolytic capacitor. The heat dissipation shell 3 is made of aluminum alloy. The heat dissipation shell 3 is made of aluminum alloy. With the excellent thermal conductivity of aluminum alloy, it can quickly absorb and conduct the heat generated by the electrolytic capacitor, significantly improving heat dissipation efficiency. At the same time, aluminum alloy is lightweight and high-strength, which can effectively control the overall weight and volume of the electrolytic capacitor while ensuring good heat dissipation.

[0027] Working principle: The electrolytic capacitor body 1 is placed inside the heat sink 3. The electrolytic capacitor body 1 is fixed by the silicone strip 10 until the bottom surface of the electrolytic capacitor body 1 abuts against the heat-conducting protrusion 9 on the heat sink 3. The lead 2 passes through the through hole 7 through the shell cover 6 and out through the conical sleeve 13. The lead 2 is fixed by the sealing rubber ring 14. Then, the shell cover 6 is attached to the adsorption plate 4 on the heat sink 3 by the magnetic absorbing piece 5. After the electrolytic capacitor body 1 generates heat, the aluminum alloy heat sink 3 absorbs the heat quickly due to its good thermal conductivity. The heat-conducting protrusion 9 on the inner wall of the heat sink 3 directly abuts against the bottom surface of the electrolytic capacitor body 1, forming an efficient heat conduction path, which quickly conducts the heat to the heat sink 3. The heat dissipation fins 11 distributed in a circular array on the surface of the heat sink 3 greatly increase the contact area with the air. Together with the heat dissipation holes 8 on the bottom surface, the heat is dissipated into the air more quickly, improving the heat exchange efficiency in all aspects and ensuring that the electrolytic capacitor can cool down quickly even when working under high load.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A small-volume electrolytic capacitor with good heat dissipation, comprising an electrolytic capacitor body (1), characterized in that: Two pins (2) are installed on the top of the electrolytic capacitor body (1). A heat dissipation shell (3) is covered on the surface of the electrolytic capacitor body (1). An adsorption plate (4) is fixedly connected to the surface of the heat dissipation shell. A magnetic adsorption plate (5) is adsorbed on one side of the adsorption plate (4). A shell cover (6) is fixedly connected to one side of the magnetic adsorption plate (5). Two through holes (7) are opened on the surface of the shell cover (6). The through holes (7) are slidably connected to the pins (2). A heat dissipation hole (8) is opened on the bottom surface of the heat dissipation shell (3).

2. The small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: The inner wall of the heat dissipation shell (3) is fixedly connected with several heat-conducting protrusions (9), and the heat-conducting protrusions (9) abut against the bottom surface of the electrolytic capacitor body (1).

3. The small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: The inner wall of the heat dissipation shell (3) is fixedly connected with several silicone strips (10), and the silicone strips (10) abut against the surface of the electrolytic capacitor body (1).

4. The small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: The surface of the heat dissipation shell (3) is fixedly connected with a number of heat dissipation fins (11), and the number of heat dissipation fins (11) are distributed in a circular array on the heat dissipation shell (3).

5. A small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: A sealing gasket (12) is fixedly connected to one side of the cover (6), and one side of the sealing gasket (12) abuts against the heat dissipation shell (3).

6. A small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: Two conical sleeves (13) are fixedly connected to the surface of the shell cover (6). The conical sleeves (13) are slidably connected to the surface of the pin (2). A sealing rubber ring (14) is installed on the inner wall of the conical sleeves (13).

7. A small-volume electrolytic capacitor with good heat dissipation according to claim 1, characterized in that: The heat dissipation shell (3) is made of aluminum alloy.

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