Microminiature metallized polyester film capacitor

Abstract

The utility model relates to the technical field of ultra-small metallized polyester film capacitors, in particular to an ultra-small metallized polyester film capacitor, which comprises a capacitor body, two pins are fixedly mounted on the surface of the capacitor body, a mounting seat is fixedly connected to the outer sides of the two pins, a shell is fixedly mounted on the surface of the mounting seat, and the outer surface of the mounting seat is fixedly connected with the shell. The shell is made of a metal copper material, a push plate is slidably mounted on the inner side of the shell, a plurality of heat dissipation fins are fixedly connected to the side wall of the shell, an insertion hole is formed in the surface, away from the base, of the shell, a push rod is inserted into the inner side of the insertion hole, and a chamfer is arranged on the end side of the push rod. According to the utility model, through the above structure, the silicone grease material between the capacitor body and the housing can be conveniently and rapidly pushed out of the housing, thereby facilitating regular replacement of the silicone grease material at the inner side of the housing by a worker, and solving a problem that the silicone grease material is not easy to replace in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of ultra-miniature metallized polyester film capacitor technology, and in particular to an ultra-miniature metallized polyester film capacitor. Background Technology

[0002] Ultra-miniature metallized polyester film capacitors are small but high-performance capacitors. They use metallized polyester film as the key dielectric, and the metallized polyester film and metal electrode layers are alternately and tightly arranged or wound to form the main structure, thereby achieving efficient storage and release of electrical energy. These capacitors have high stability and can work reliably within a certain temperature and voltage range, providing a strong guarantee for the stable operation of miniaturized electronic devices.

[0003] Existing technologies often have the following drawbacks: In the actual use of ultra-small metallized polyester film capacitors, silicone grease is often filled between the metal casing and the capacitor body to improve the heat dissipation of the capacitor. However, the thermal conductivity of the silicone grease will gradually decrease after long-term use, making it difficult for operators to regularly replace the silicone grease inside the casing.

[0004] Therefore, this invention provides an ultra-miniature metallized polyester film capacitor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where it is not easy to periodically replace the silicone grease material between the casing and the capacitor body, and to propose an ultra-miniature metallized polyester film capacitor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an ultra-small metallized polyester film capacitor, comprising a capacitor body, two pins fixedly mounted on the surface of the capacitor body, a mounting base fixedly connected to the outer side of the two pins, a housing fixedly mounted on the surface of the mounting base, the housing being made of copper, a push plate slidably mounted on the inner side of the housing, and several heat dissipation fins fixedly connected to the side wall of the housing.

[0007] The effect achieved by the above components is that, by setting the above structure, the silicone grease material between the capacitor body and the shell can be easily and quickly pushed out of the shell, thereby facilitating the staff to regularly replace the silicone grease material inside the shell, solving the problem of the difficulty in replacing silicone grease material in the prior art.

[0008] Preferably, the outer casing has a socket on the surface away from the base, and a push rod is inserted into the inner side of the socket.

[0009] The effect achieved by the above components is to push the push rod, which in turn causes the push plate to slide inside the housing.

[0010] Preferably, the end of the push rod is chamfered.

[0011] The effect achieved by the above components is that the chamfer on the end of the push rod makes it easier to insert the push rod into the socket.

[0012] Preferably, a plurality of support plates are fixedly connected to the surface of the push plate.

[0013] The effects achieved by the above components are as follows: the support plate fixedly connected to the surface of the push plate can enhance the structural strength of the push plate and prevent it from deforming during the pushing process; on the other hand, when the capacitor body is pushed, the end of the support plate supports the upper end of the capacitor body, which can avoid direct contact between the capacitor body and the push plate and the phenomenon that it is not easy for the silicone grease material to be filled between them.

[0014] Preferably, a sealing ring is bonded to the surface of the push plate.

[0015] The effect achieved by the above components is that the sealing ring bonded to the surface of the push plate can play a sealing role during the sliding process of the push plate.

[0016] Preferably, the inner side of the outer casing is provided with anti-slip texture, and the outer surface of the capacitor body is a smooth layer, which is a ceramic layer.

[0017] The effects achieved by the above components are as follows: the smooth layer on the outer surface of the capacitor body is a ceramic layer, which not only makes the surface of the capacitor body smooth and avoids a large amount of silicone grease adhering to the capacitor body during the disassembly process, but also the ceramic layer has certain insulation and high temperature resistance properties, which helps to improve the safety and stability of the capacitor. The anti-slip texture set on the inner side of the shell increases the friction between the silicone grease and the silicone grease, further avoiding the phenomenon of silicone grease adhering to the surface of the capacitor body, and facilitating the subsequent removal of silicone grease by push plate.

[0018] In summary:

[0019] In this invention, by setting the above structure, the silicone grease material between the capacitor body and the outer shell can be conveniently and quickly pushed out of the outer shell, thereby facilitating the staff to regularly replace the silicone grease material on the inside of the outer shell, solving the problem of the difficulty in replacing silicone grease material in the prior art. 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 disassembly structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the push rod structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the outer shell of this utility model;

[0024] Figure 5 This is a schematic diagram of the push plate in this utility model.

[0025] Legend: 1. Capacitor body; 2. Leads; 3. Smooth layer; 4. Housing; 5. Heat sink fins; 6. Mounting base; 7. Push rod; 8. Push plate; 9. Chamfer; 10. Socket; 11. Anti-slip texture; 12. Sealing ring; 13. Support plate. Detailed Implementation

[0026] Reference Figure 1-5 As shown, this utility model provides a technical solution: an ultra-small metallized polyester film capacitor, including a capacitor body 1, with two pins 2 fixedly mounted on the surface of the capacitor body 1.

[0027] The following is a detailed explanation of its overall setup and function.

[0028] In this implementation scheme: A mounting base 6 is fixedly connected to the outer side of the two pins 2. A housing 4, made of copper, is fixedly mounted on the surface of the mounting base 6. A push plate 8 is slidably mounted on the inner side of the housing 4. Several heat dissipation fins 5 are fixedly connected to the side wall of the housing 4. By setting the above structure, the silicone grease between the capacitor body 1 and the housing 4 can be easily and quickly pushed out of the housing 4, thus facilitating the periodic replacement of the silicone grease inside the housing 4 by the operator, solving the problem of difficulty in replacing silicone grease in the prior art. A socket 10 is provided on the surface of the housing 4 away from the base, and a push rod 7 is inserted into the inner side of the socket 10. Pushing the push rod 7 causes the push plate 8 to slide inside the housing 4.

[0029] Specifically, the push rod 7 has a chamfer 9 on its end side. The chamfer 9 on the end side of the push rod 7 makes it easier to insert the push rod 7 into the socket 10. Several support plates 13 are fixedly connected to the surface of the push plate 8. The support plates 13 fixedly connected to the surface of the push plate 8 can enhance the structural strength of the push plate 8 and prevent it from deforming during the pushing process; on the other hand, when the capacitor body 1 is pushed, the end side of the support plate 13 supports the upper end of the capacitor body 1, which can avoid direct contact between the capacitor body 1 and the push plate 8, and prevent the phenomenon of easy filling of silicone grease between the two. A sealing ring 12 is glued to the surface of the push plate 8. The sealing ring 12 glued to the surface of the push plate 8 can play a sealing role during the sliding of the push plate 8. The inner side of the outer shell 4 is provided with anti-slip texture 11, and the outer surface of the capacitor body 1 is a smooth layer 3, which is a ceramic layer. The smooth layer 3 on the outer surface of the capacitor body 1 is a ceramic layer, which not only makes the surface of the capacitor body 1 smooth and avoids a large amount of silicone grease material adhering to the capacitor body 1 during the disassembly of the outer casing 4, but also has certain insulation and high temperature resistance properties, which helps to improve the safety and stability of the capacitor. The anti-slip texture 11 set on the inner side of the outer casing 4 increases the friction between it and the silicone grease material, further avoiding the phenomenon of silicone grease material adhering to the surface of the capacitor body 1, and facilitating the subsequent push-out of the silicone grease material using the push plate 8.

[0030] Working principle: During operation, the capacitor body 1 stores and releases electrical energy. Heat is generated during operation and transferred to the outer casing 4. The outer casing 4 is made of copper, which has good thermal conductivity. Simultaneously, the heat dissipation fins 5 fixedly connected to its side walls increase the heat dissipation area, accelerating heat dissipation to the surrounding environment and effectively improving heat dissipation efficiency. When it is necessary to replace the silicone grease between the outer casing 4 and the capacitor body 1, the push rod 7 is inserted into the insertion hole 10 on the surface of the outer casing 4. The chamfer 9 on the end of the push rod 7 allows for easier insertion into the insertion hole 10, reducing resistance during insertion. Pushing the push rod 7 causes the push plate 8 to slide inside the outer casing 4. The support plate 13 fixedly connected to the surface of the push plate 8 enhances the structural strength of the push plate 8, preventing deformation during pushing. Furthermore, when pushing the capacitor body 1, the end of the support plate 13 supports the upper end of the capacitor body 1, preventing direct contact between the capacitor body 1 and the push plate 8, thus facilitating the transfer of silicone grease between them. The sealing ring 12 bonded to the surface of the push plate 8 can seal the surface during the sliding of the push plate 8, preventing dust and other impurities from entering the interior of the outer casing 4 and affecting the performance of the capacitor. It can also prevent the leakage of silicone grease. The smooth layer 3 on the outer surface of the capacitor body 1 is a ceramic layer, which not only makes the surface of the capacitor body 1 smooth and prevents a large amount of silicone grease from adhering to the capacitor body 1 during the disassembly of the outer casing 4, but also has certain insulation and high temperature resistance properties, which helps to improve the safety and stability of the capacitor. The anti-slip texture 11 set on the inner side of the outer casing 4 increases the friction between the silicone grease and the silicone grease, further preventing the silicone grease from adhering to the surface of the capacitor body 1. This facilitates the subsequent pushing out of the silicone grease using the push plate 8. By setting the above structure, the silicone grease between the capacitor body 1 and the outer casing 4 can be pushed out of the outer casing 4 easily and quickly, which makes it easier for the staff to replace the silicone grease on the inner side of the outer casing 4 regularly, solving the problem of the difficulty in replacing silicone grease in the prior art.

[0031] 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. An ultra-miniature metallized polyester film capacitor, comprising a capacitor body (1), characterized in that: Two pins (2) are fixedly mounted on the surface of the capacitor body (1). A mounting base (6) is fixedly connected to the outside of the two pins (2). A housing (4) is fixedly mounted on the surface of the mounting base (6). The housing (4) is made of copper. A push plate (8) is slidably mounted on the inside of the housing (4). Several heat dissipation fins (5) are fixedly connected to the side wall of the housing (4).

2. The ultra-miniature metallized polyester film capacitor according to claim 1, characterized in that: The outer casing (4) has an insertion hole (10) on its surface away from the base, and a push rod (7) is inserted into the inner side of the insertion hole (10).

3. The ultra-miniature metallized polyester film capacitor according to claim 2, characterized in that: The push rod (7) has a chamfer (9) on its end side.

4. The ultra-miniature metallized polyester film capacitor according to claim 1, characterized in that: The surface of the push plate (8) is fixedly connected with several support plates (13).

5. The ultra-miniature metallized polyester film capacitor according to claim 1, characterized in that: A sealing ring (12) is glued to the surface of the push plate (8).

6. The ultra-miniature metallized polyester film capacitor according to claim 1, characterized in that: The inner side of the outer shell (4) is provided with anti-slip texture (11), and the outer surface of the capacitor body (1) is a smooth layer (3), which is a ceramic layer.

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