High temperature resistant capacitor

Abstract

The utility model belongs to capacitor technical field, specifically is a kind of high-temperature-resistant capacitor, including capacitor body;Two terminals are fixedly connected on the capacitor body top;Safety valve is fixedly connected on the capacitor body top;Two bases are fixedly connected on the capacitor body bottom;Two the base is set up oppositely;Heat dissipation component and protection component are installed in the middle part of capacitor body;The heat dissipation component includes two heat conduction plates;Several heat dissipation fins are fixedly connected in the middle part of heat conduction plate;Several heat dissipation fins equidistant distribution;Several heat dissipation fins middle part is fixedly connected with heat dissipation plate;Through the above structure, the core internal temperature and surface temperature of capacitor body in use process can be reduced, the heat generated by capacitor body is accumulated in its interior is reduced, after multiple heat conduction rods, heat dissipation efficiency can be improved, and the performance decline or failure caused by capacitor body overheating is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor technology, specifically a high-temperature resistant capacitor. Background Technology

[0002] A capacitor is an electronic component that can store electric charge. The basic structure of a capacitor consists of two parallel metal plates with an insulating material sandwiched in between.

[0003] When a voltage is applied across the ends of a high-temperature capacitor, the power source forces one plate to accumulate positive charge and the other plate to accumulate negative charge. The charge is stored on the plates, and since the insulating medium in between cannot flow, an electric field is established, storing electrical energy. When the external circuit is connected, the accumulated charge flows through the external circuit, forming a current and releasing the stored electrical energy.

[0004] During the operation of a capacitor, when a large AC ripple current flows through the capacitor, heat will be generated on its equivalent series resistance. When operating at high temperatures, the temperature is likely to continue to rise. Under severe temperature cycles or high temperatures, the ambient temperature is already high, the heat dissipation capacity becomes poor, and the heat generated by the capacitor itself is difficult to dissipate in time, which can easily lead to problems such as bulging and cracking of the capacitor.

[0005] Therefore, this utility model provides a high-temperature resistant capacitor. Utility Model Content

[0006] The purpose of this invention is to address the problem that high-temperature capacitors continuously heat up when operating at high temperatures, making it difficult to dissipate heat in time and easily leading to capacitor damage. This invention proposes a high-temperature capacitor to solve the problems mentioned in the background section.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A high-temperature resistant capacitor of this utility model includes a capacitor body; two terminals are fixedly connected to the top of the capacitor body; a safety valve is fixedly connected to the top of the capacitor body; two bases are fixedly connected to the bottom of the capacitor body; the two bases are arranged opposite each other; a heat dissipation assembly and a protective assembly are installed in the middle of the capacitor body; the heat dissipation assembly includes two heat-conducting plates; several heat dissipation fins are fixedly connected to the middle of the heat-conducting plates; the several heat dissipation fins are equidistantly distributed; a heat dissipation plate is fixedly connected to the middle of the several heat dissipation fins; two sets of heat-conducting rods are fixedly connected to the side wall of the heat-conducting plates; the two sets of heat-conducting rods are arranged opposite each other; several heat dissipation holes are opened in the middle of the heat dissipation plate; the above structure can reduce the core internal temperature and surface temperature of the capacitor body during use, reduce the accumulation of heat inside the capacitor body when it generates heat, improve heat dissipation efficiency through multiple heat-conducting rods, reduce performance degradation or failure caused by overheating of the capacitor body, and maintain stable operation of the capacitor body.

[0008] Preferably, the protective component includes a mesh cover; the mesh cover is fixedly connected to the middle of the heat sink plate; two sealing strips are fixedly connected to the end of the mesh cover; the two sealing strips are arranged opposite to each other; an installation component is installed at the end of the mesh cover; the mesh cover with the above structure can effectively reduce the direct contact between external objects and the heat conduction rod and heat sink fins, reduce friction and wear, and effectively reduce the direct entry of dust and fibers into the gaps between the heat sink fins, thus maintaining a stable heat dissipation effect.

[0009] Preferably, the mounting assembly includes a fixing block; the fixing block is fixedly connected to the end of the mesh cover; an mounting block is fixedly connected to the end of the mesh cover; the fixing block and the mounting block are arranged opposite to each other; an mounting groove is formed in the middle of the mounting block; two rotating shafts are rotatably connected to the end of the mounting block; a fixing plate is fixedly connected to the middle of the rotating shaft; a torsion spring is provided between the rotating shaft and the mounting block; the fixing block is installed in the middle of the corresponding mounting groove. With the above structure, when it is necessary to clean the mesh cover regularly or inspect the capacitor body, the fixing plate can facilitate the quick removal of the mesh cover, reduce the inconvenience caused by gradually disassembling the screws, and improve maintenance efficiency.

[0010] Preferably, a first magnetic block is fixedly connected to the middle of the mounting groove; a second magnetic block is fixedly connected to the middle of the fixing block; the first magnetic block and the second magnetic block attract each other when they are close to each other; the above structure can guide and position the fixing block and provide a continuous adsorption force to the fixing block, thereby increasing the fixing effect.

[0011] Preferably, a filter screen is provided in the middle of the heat dissipation hole; the filter screen is fixed in the middle of the heat dissipation hole; the above structure can intercept some impurities from entering the heat dissipation hole and causing accumulation, reducing the damage to the heat dissipation fins caused by dust and fine particles.

[0012] Preferably, the surface of the mesh cover is coated with a high-temperature resistant and corrosion-resistant coating; the above structure can effectively reduce the corrosion of the mesh cover surface after long-term use and continuously protect the heat dissipation fins and heat conduction rods.

[0013] The beneficial effects of this utility model are as follows: 1. The high-temperature resistant capacitor of this utility model can reduce the core internal temperature and surface temperature of the capacitor body during use through the above structure, reduce the accumulation of heat inside the capacitor body when it generates heat, improve heat dissipation efficiency through multiple heat-conducting rods, reduce performance degradation or failure caused by overheating of the capacitor body, and maintain stable operation of the capacitor body.

[0014] 2. The high-temperature resistant capacitor described in this utility model can effectively reduce direct contact between external objects and the heat-conducting rod and heat dissipation fins through the above-mentioned mesh structure, thereby reducing friction and wear, and effectively reducing the accumulation of dust and fibers in the gaps between the heat dissipation fins, thus maintaining a stable heat dissipation effect. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the heat dissipation component in this utility model; Figure 3 This is a schematic diagram of the structure of the heat-conducting rod in this utility model; Figure 4 This is a schematic diagram of the structure of the mesh cover in this utility model; Figure 5 This is an exploded view of the mounting components in this utility model.

[0017] In the diagram: 1. Capacitor body; 11. Terminal; 12. Safety valve; 13. Base; 2. Heat dissipation assembly; 21. Heat-conducting plate; 22. Heat dissipation fins; 23. Heat dissipation plate; 24. Heat-conducting rod; 25. Heat dissipation hole; 3. Protective assembly; 31. Mesh cover; 32. Sealing strip; 4. Mounting assembly; 41. Fixing block; 42. Mounting block; 43. Mounting groove; 44. Shaft; 45. Fixing plate; 5. First magnetic block; 51. Second magnetic block; 6. Filter screen. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] like Figures 1 to 5As shown in the embodiment of this utility model, a high-temperature resistant capacitor includes a capacitor body 1; two terminals 11 are fixedly connected to the top of the capacitor body 1; a safety valve 12 is fixedly connected to the top of the capacitor body 1; two bases 13 are fixedly connected to the bottom of the capacitor body 1; the two bases 13 are arranged opposite to each other; a heat dissipation assembly 2 and a protective assembly 3 are installed in the middle of the capacitor body 1; the heat dissipation assembly 2 includes two heat-conducting plates 21; a plurality of heat dissipation fins 22 are fixedly connected to the middle of the heat-conducting plates 21; the plurality of heat dissipation fins 22 are equidistantly distributed; a heat dissipation plate 23 is fixedly connected to the middle of the plurality of heat dissipation fins 22; two sets of heat-conducting rods 24 are fixedly connected to the sidewalls of the heat-conducting plates 21; the two sets of heat-conducting rods 24 are arranged opposite to each other; a plurality of heat dissipation holes 25 are opened in the middle of the heat dissipation plate 23; during operation, the two heat-conducting plates 21 are placed on opposite sides of the capacitor body 1 and their surfaces are in contact with each other, and the two sets of heat dissipation holes 25 are in contact with each other. The ends of the heat-conducting rods 24 are attached to each other, and the heat dissipation fins 22 and the heat-conducting rods 24 are protected by the protective components 3. The heat-conducting plate 21 is fixed in the middle of the capacitor body 1. When the capacitor body 1 is used at high power or high frequency, the surface will continuously heat up. At this time, the heat is transferred to the heat-conducting plate 21. The heat on both sides of the capacitor body 1 is transferred to the heat-conducting plate 21 through the heat-conducting rods 24. The heat is then conducted to multiple heat dissipation fins 22 through the heat-conducting plate 23 and dissipated to a larger area. The above structure can reduce the core internal temperature and surface temperature of the capacitor body 1 during use, reduce the accumulation of heat inside the capacitor body 1 when it generates heat, and improve the heat dissipation efficiency through multiple heat-conducting rods 24. This reduces the performance degradation or failure caused by overheating of the capacitor body 1 and keeps the capacitor body 1 running stably.

[0021] like Figures 3 to 5 As shown, the protective component 3 includes a mesh cover 31; the mesh cover 31 is fixedly connected to the middle of the heat sink 23; two sealing strips 32 are fixedly connected to the ends of the mesh cover 31; the two sealing strips 32 are arranged opposite each other; an installation component 4 is installed at the ends of the mesh cover 31; during operation, the two mesh covers 31 are placed in the middle of the capacitor body 1, the two sealing strips 32 are tightly fitted to fill the small gap between the ends of the two mesh covers 31, and the two mesh covers 31 are locked and fixed by the installation component 4. Through the above structure, the mesh cover 31 can effectively reduce the direct contact between external objects and the heat conduction rod 24 and the heat sink fins 22, reduce friction and wear, and effectively reduce the direct entry of dust and fibers into the gaps of the heat sink fins 22, thus maintaining a stable heat dissipation effect.

[0022] like Figure 5As shown, the mounting component 4 includes a fixing block 41; the fixing block 41 is fixedly connected to the end of the mesh cover 31; a mounting block 42 is fixedly connected to the end of the mesh cover 31; the fixing block 41 and the mounting block 42 are arranged opposite to each other; a mounting groove 43 is opened in the middle of the mounting block 42; two rotating shafts 44 are rotatably connected to the end of the mounting block 42; a fixing plate 45 is fixedly connected to the middle of the rotating shaft 44; a torsion spring is provided between the rotating shaft 44 and the mounting block 42; the fixing block 41 is installed in the middle of the corresponding mounting groove 43; during operation, when fixing the two protective components 3, the fixing plate 45 is first moved to make it rotate, and the rotating shaft A torsion spring is provided between the mounting plate 44 and the mounting block 42. When the fixing plate 45 is rotated under pressure, the torsion spring stores a certain force. At this time, the fixing block 41 is placed into the mounting groove 43. The torsion spring resets the fixing plate 45, and the fixing plate 45 rotates to the side of the fixing block 41, locking the fixing block 41 in place. This allows the two mesh covers 31 to quickly engage. With the above structure, when it is necessary to clean the mesh cover 31 regularly or inspect the capacitor body 1, the fixing plate 45 can easily remove the mesh cover 31 quickly, reducing the inconvenience caused by gradually disassembling the screws and improving maintenance efficiency.

[0023] like Figure 5 As shown, a first magnetic block 5 is fixedly connected to the middle of the mounting groove 43; a second magnetic block 51 is fixedly connected to the middle of the fixing block 41; the first magnetic block 5 and the second magnetic block 51 attract each other when they are close; during operation, when the fixing block 41 is installed inside the mounting groove 43, the second magnetic block 51 and the first magnetic block 5 continue to approach each other, and the magnetic attraction generated quickly fixes the fixing block 41. The above structure can guide and position the fixing block 41 and provide a continuous adsorption force to the fixing block 41, thereby increasing the fixing effect.

[0024] like Figure 2 As shown, a filter screen 6 is provided in the middle of the heat dissipation hole 25; the filter screen 6 is fixed in the middle of the heat dissipation hole 25; during operation, external dust and impurities are intercepted by the filter screen 6 and enter through the heat dissipation hole 25, isolating the inside of the heat dissipation plate 23 from the outside. The above structure can intercept some impurities from entering the heat dissipation hole 25 and causing accumulation, reducing the damage to the heat dissipation fins 22 caused by dust and small particles.

[0025] like Figure 4 As shown, the surface of the mesh cover 31 is coated with a high-temperature resistant and anti-corrosion coating. During operation, the high-temperature resistant and anti-corrosion coating forms a supportive and solid film on the surface of the mesh cover 31, blocking water vapor and oxygen. Through the above structure, the surface of the mesh cover 31 can be effectively reduced to prevent rust from forming after long-term use, and continuously protect the heat dissipation fins 22 and the heat conduction rods 24.

[0026] During operation, two heat-conducting plates 21 are placed on opposite sides of the capacitor body 1 and attached to its surface. The ends of two sets of heat-conducting rods 24 are attached to each other. The heat dissipation fins 22 and heat-conducting rods 24 are protected by the protective component 3, and the heat-conducting plates 21 are fixed in the middle of the capacitor body 1. When the capacitor body 1 is used at high power or high frequency, its surface will continuously heat up. At this time, the heat is transferred to the heat-conducting plates 21. The heat from both sides of the capacitor body 1 is transferred to the heat-conducting plates 21 through the heat-conducting rods 24. The heat is then conducted through the heat-conducting plates 21 to multiple heat dissipation fins 22, and then dissipated to a larger area through the heat dissipation plate 23. Two mesh covers 31 are placed in the middle of the capacitor body 1, and two sealing strips 32 are tightly attached to fill the small gaps between the ends of the two mesh covers 31. The two mesh covers 31 are locked and fixed by the mounting component 4. When fixing the two protective components 3, firstly, the fixing plate 45 is turned so that it rotates. A torsion spring is provided between the rotating shaft 44 and the mounting block 42. When the fixing plate 45 is rotated under pressure, the torsion spring stores a certain force. At this time, the fixing block 41 is placed into the mounting groove 43. The torsion spring resets the fixing plate 45. The fixing plate 45 rotates to one side of the fixing block 41 and locks the fixing block 41 in place, thereby making the two mesh covers 31 quickly snap together. When the fixing block 41 is installed inside the mounting groove 43, the second magnetic block 51 and the first magnetic block 5 continue to approach each other. The magnetic attraction generated quickly fixes the fixing block 41. External dust and impurities are intercepted by the filter screen 6 and enter through the heat dissipation hole 25, isolating the inside of the heat dissipation plate 23 from the outside. The high temperature and corrosion resistant coating forms a support and firm film on the surface of the mesh cover 31, blocking water vapor and oxygen.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant capacitor, comprising a capacitor body (1); characterized in that: The capacitor body (1) has two terminals (11) fixedly connected to the top; a safety valve (12) is fixedly connected to the top of the capacitor body (1); two bases (13) are fixedly connected to the bottom of the capacitor body (1); the two bases (13) are arranged opposite to each other; a heat dissipation component (2) and a protective component (3) are installed in the middle of the capacitor body (1).

2. The high-temperature resistant capacitor according to claim 1, characterized in that: The heat dissipation assembly (2) includes two heat-conducting plates (21); a plurality of heat dissipation fins (22) are fixedly connected to the middle of the heat-conducting plates (21); the plurality of heat dissipation fins (22) are equidistantly distributed; a heat dissipation plate (23) is fixedly connected to the middle of the plurality of heat dissipation fins (22); two sets of heat-conducting rods (24) are fixedly connected to the side wall of the heat-conducting plates (21); the two sets of heat-conducting rods (24) are arranged opposite to each other; a plurality of heat dissipation holes (25) are opened in the middle of the heat dissipation plate (23).

3. A high-temperature resistant capacitor according to claim 1, characterized in that: The protective component (3) includes a mesh cover (31); the mesh cover (31) is fixed to the middle of the heat sink (23); two sealing strips (32) are fixed to the end of the mesh cover (31); the two sealing strips (32) are arranged opposite to each other; an installation component (4) is installed at the end of the mesh cover (31).

4. A high-temperature resistant capacitor according to claim 3, characterized in that: The mounting assembly (4) includes a fixing block (41); the fixing block (41) is fixed to the end of the mesh cover (31); the end of the mesh cover (31) is fixed to a mounting block (42); the fixing block (41) and the mounting block (42) are arranged opposite to each other; the mounting block (42) has a mounting groove (43) in the middle; the end of the mounting block (42) is rotatably connected to two rotating shafts (44); the middle of the rotating shaft (44) is fixed to a fixing plate (45); a torsion spring is provided between the rotating shaft (44) and the mounting block (42); the fixing block (41) is installed in the middle of the corresponding mounting groove (43).

5. A high-temperature resistant capacitor according to claim 4, characterized in that: A first magnetic block (5) is fixedly connected to the middle of the mounting groove (43); a second magnetic block (51) is fixedly connected to the middle of the fixing block (41); the first magnetic block (5) and the second magnetic block (51) attract each other when they are close to each other.

6. A high-temperature resistant capacitor according to claim 2, characterized in that: A filter screen (6) is provided in the middle of the heat dissipation hole (25); the filter screen (6) is fixedly connected to the middle of the heat dissipation hole (25).

7. A high-temperature resistant capacitor according to claim 3, characterized in that: The surface of the mesh cover (31) is coated with a high-temperature resistant and corrosion-resistant coating.

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