Thin film capacitor with auxiliary heat dissipation structure

Abstract

The invention discloses a thin film capacitor with an auxiliary heat dissipation structure, and the thin film capacitor with the auxiliary heat dissipation structure comprises a thin film capacitor body, and the upper end of an outer sleeve shell structure is fixedly connected with an air cooling heat dissipation assembly, a contact assembly and an auxiliary cooling assembly. In order to solve the problem that a common film capacitor is prone to being damaged due to overheating for a long time when used in a high-temperature environment, an air-cooling heat dissipation assembly is designed, air-cooling auxiliary heat dissipation can be carried out on a film capacitor body through cooperative use of the air-cooling heat dissipation assembly, an outer sleeve shell structure and a contact assembly, and compared with a common air-blowing heat dissipation structure, the heat dissipation efficiency is improved. According to the thin-film capacitor, heat conduction and heat dissipation are performed on the thin-film capacitor body in a concentrated manner, a good heat dissipation effect is achieved, meanwhile, the auxiliary cooling assembly is arranged, auxiliary liquid cooling can be automatically performed while air cooling heat dissipation is performed through the arrangement of the auxiliary cooling assembly, and the heat dissipation effect is further achieved.

Description

Technical Field

[0001] The present application relates to the technical field of film capacitors, and in particular to a film capacitor with an auxiliary heat dissipation structure. Background Art

[0002] Film capacitors are an important electronic component, widely used in various electronic devices. Film capacitors, also known as plastic film capacitors, are capacitors that use plastic film as a dielectric. They use metal foil or metallized film as electrodes, which are wound or stacked together with plastic film to form a capacitor structure. Film capacitors are prone to accelerated aging when working in a high temperature environment for a long time.

[0003] The existing patent document "CN218676786U A high heat dissipation film capacitor" discloses a film capacitor. Although the film capacitor in the above technical solution can improve the heat dissipation effect, it is difficult to effectively improve the heat dissipation effect by simply increasing the heat dissipation area when used in a high ambient temperature. At the same time, when used in a high-temperature environment for a long time, it is easy to accelerate the aging of the material, resulting in the problem of loosening and separation between the electrode and the film. That is, the prior art has the following technical problems: ordinary film capacitors are prone to accelerated material aging when used in high ambient temperature environments, resulting in loosening and separation between electrodes and films. Therefore, a film capacitor with an auxiliary heat dissipation structure is proposed to address the above problem. Summary of the invention

[0004] In this embodiment, a film capacitor with an auxiliary heat dissipation structure is provided to solve the problem that ordinary film capacitors in the prior art are prone to accelerated material aging and loosening and separation between electrodes and films when used in high ambient temperature environments.

[0005] According to one aspect of the present application, a film capacitor with an auxiliary heat dissipation structure is provided, and the film capacitor with the auxiliary heat dissipation structure includes: A film capacitor body, wherein an outer shell structure is fixedly arranged on the outer surface of the film capacitor body, and an air-cooling heat dissipation component is fixedly connected to the upper end of the outer shell structure, and the air-cooling heat dissipation component is used to perform air cooling and heat dissipation on the film capacitor body; A contact assembly, wherein the contact assembly is fixedly arranged at the inner cavity wall of the outer shell structure, the contact assembly contacts the outer wall of the film capacitor body, and the contact assembly is used to assist in clamping and fixing the film capacitor body in a high temperature environment; An auxiliary cooling component is fixedly arranged at the side wall of the outer shell structure, and is connected to the air-cooling heat dissipation component. The auxiliary cooling component is used for automatically assisting heat dissipation during air-cooling heat dissipation.

[0006] Furthermore, the outer shell structure includes a circular shell, an air inlet, a rubber supporting foot, and a fixed bracket. The circular shell is fixedly arranged on the arc-shaped wall of the film capacitor body, a plurality of air inlets are opened on the bottom surface of the circular shell, a plurality of rubber supporting feet are fixedly connected to the bottom surface of the circular shell, and a plurality of fixed brackets are fixedly connected to the arc-shaped wall of the circular shell.

[0007] Furthermore, the air-cooled heat dissipation component includes a circular fixed bracket, a drive motor and a fan. The circular fixed bracket is fixedly arranged at the upper end of the circular shell, the fan is rotatably connected to the upper surface of the circular fixed bracket, the drive motor is fixedly connected to the lower surface of the circular fixed bracket, and the output shaft end of the drive motor is fixedly connected to the fan.

[0008] Furthermore, the contact assembly includes a rectangular fixed shell, a rectangular connecting shell, an arc-shaped contact plate, a connecting hose, a fixed bin, a fixed cylinder, a connecting tube and a push rod. A plurality of the contact assemblies are provided, and the plurality of the contact assemblies are fixedly arranged in a ring shape on the inner wall of the circular shell. The rectangular fixed shell is fixedly arranged on the arc-shaped inner wall of the circular shell. An inner cavity is provided inside the rectangular fixed shell. A rectangular connecting shell is slidably connected to the inner cavity of the rectangular fixed shell. An arc-shaped contact plate is fixedly connected to one end of the rectangular connecting shell, and the arc-shaped surface of the arc-shaped contact plate contacts the outer surface of the film capacitor body.

[0009] Furthermore, the rectangular fixing shell, the rectangular connecting shell and the arc-shaped contact plate are all made of heat-conducting materials.

[0010] Furthermore, a fixed bin is fixedly connected to the outer surface of the rectangular fixed shell, a fixed cylinder is fixedly connected to the inner cavity of the rectangular fixed shell, a movable piston is slidably connected to the inner cavity of the fixed cylinder, one end of a push rod is fixedly connected to the upper surface of the movable piston, the other end of the push rod penetrates the upper wall of the inner cavity of the fixed cylinder and extends outside the wall, one end of the push rod is fixedly connected to the inner cavity wall of the rectangular connecting shell, the fixed bin and the fixed cylinder are both made of brass, the inner cavity of the fixed cylinder and the fixed bin are filled with alcohol solution, one end of a connecting tube is fixedly connected to the inner cavity of the fixed bin, the other end of the connecting tube extends into the inner cavity of the fixed cylinder and is fixedly connected to the fixed cylinder.

[0011] Furthermore, the auxiliary cooling component includes a bevel gear A, a fixed bracket, a rotating rod, a bevel gear B, a pinion, a rotating rod, a gear plate, a connecting frame A, a connecting tube, a piston, a movable guide rod, a connecting frame B and a storage bin, the bevel gear A is fixedly arranged at the central axis position of the fan, the fixed bracket is fixedly arranged on the upper surface of the circular shell, the fixed bracket is rotatably connected to the rotating rod, one end of the rotating rod is fixedly connected to the bevel gear B, the bevel gear B and the bevel gear A are meshed with each other, and the other end of the rotating rod is fixedly connected to the pinion.

[0012] Furthermore, the rotating rod is arranged at the side wall of the circular shell and is rotatably connected to the circular shell. A gear plate is fixedly connected to the rotating rod, and the gear plate and the pinion are meshed with each other.

[0013] Furthermore, a connecting frame A is fixedly connected to the bottom end of the connecting cylinder, and the connecting frame A is arranged at the side wall of the circular shell and is rotatably connected to the circular shell. A piston is slidably connected in the inner cavity of the connecting cylinder, and one end of a movable guide rod is fixedly connected to the upper surface of the piston, and the other end of the movable guide rod passes through the upper wall of the inner cavity of the connecting cylinder and extends outside the wall. A connecting frame B is fixedly connected to the top of the movable guide rod, and the connecting frame B is arranged at the side wall of the gear plate and is rotatably connected to the gear plate. One end of an input hose is fixedly connected to the bottom side of the inner cavity of the connecting cylinder, and the other end of the input hose extends into the inner cavity of the storage bin and is fixedly connected to the storage bin. An input check valve is installed on the input hose, and one end of an output hose is fixedly connected to the bottom side of the inner cavity of the connecting cylinder, and the other end of the output hose extends into the inner cavity of the arc contact plate and is fixedly connected to the arc contact plate, and an output check valve is installed on the output hose.

[0014] Furthermore, the storage bin is fixedly arranged at the arc-shaped outer wall of the circular shell, the inner cavity of the storage bin is filled with coolant, a plurality of metal fins are fixedly arranged at the outer wall of the storage bin, one end of a return pipe is fixedly connected to the inner cavity of the storage bin, and the other end of the return pipe extends into the inner cavity of the arc-shaped contact plate and is fixedly connected to the arc-shaped contact plate.

[0015] Through the above technical scheme of the present application, in order to solve the problem in the prior art that ordinary film capacitors are prone to overheating and damage when used in a high temperature environment for a long time, the present application designs an air-cooled heat dissipation component. Through the coordinated use of the air-cooled heat dissipation component, the outer shell structure and the contact component, the film capacitor body can be subjected to air-cooling auxiliary heat dissipation. Compared with the ordinary blowing heat dissipation structure, the present application focuses on heat conduction and heat dissipation of the film capacitor body, which has a better heat dissipation effect. At the same time, an auxiliary cooling component is set. Through the setting of the auxiliary cooling component, auxiliary liquid cooling can be automatically performed while air cooling and heat dissipation are performed, which further achieves a heat dissipation effect, effectively avoiding the problem of insufficient heat dissipation effect caused by excessively high outside air temperature, and liquid cooling auxiliary heat dissipation does not require an additional power source and is easy to use. In order to solve the problem in the prior art that ordinary film capacitors are prone to accelerated material aging and loosening and separation between electrodes and films when used in a high temperature environment for a long time, the contact component can be set to automatically hold the film capacitor body at high temperature, thereby playing a role of auxiliary fastening and fixing, reducing the phenomenon of loosening due to aging, and is particularly suitable for use in a high temperature environment for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the bottom structure of an embodiment of the present application; Figure 3 This is a schematic structural diagram of an outer shell structure of an embodiment of the present application; Figure 4 This is a schematic diagram of the bottom structure of an outer shell structure according to an embodiment of the present application; Figure 5 This is a schematic structural diagram of an air-cooling heat dissipation component according to an embodiment of the present application; Figure 6 This is a schematic structural diagram of a contact assembly according to an embodiment of the present application; Figure 7 A schematic diagram of the internal structure of a contact assembly according to an embodiment of the present application; Figure 8 This is a schematic diagram of the structure of a fixed cylinder according to an embodiment of the present application; Fig. 9This is a schematic diagram of the structure of an auxiliary cooling component according to an embodiment of the present application; Fig.10 This is a schematic diagram of the side structure of an auxiliary cooling component according to an embodiment of the present application; Fig.11 This is a schematic diagram of the structure of a storage bin according to an embodiment of the present application; Fig.12 This is a schematic structural diagram of a connecting tube according to an embodiment of the present application; Fig.13 This is a schematic diagram of the internal structure of a rectangular fixed shell according to the second embodiment of the present application; Fig.14 This is a schematic diagram of the partially enlarged structure of the second embodiment of the present application.

[0018] In the figure: Film capacitor body 1; outer shell structure 2, circular shell 201, air inlet 202, rubber support foot 203, fixed stand 204; air cooling heat dissipation component 3, circular fixed bracket 301, drive motor 302, fan 303; contact component 4, rectangular fixed shell 401, rectangular connecting shell 402, arc contact plate 403, connecting hose 404, fixed bin 405, fixed cylinder 406, connecting pipe 407, movable piston 408, push rod 409; auxiliary cooling component 5, bevel gear A501, fixed bracket 502, rotating rod 503, bevel gear B504, pinion 505, rotating rod 506, gear plate 507, connecting frame A508, connecting cylinder 509, piston 510, movable guide rod 511, connecting frame B512, input hose 513, output hose 514, storage bin 515, return pipe 516, metal fin 517. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] See also Figure 1-2 As shown, a film capacitor with an auxiliary heat dissipation structure, the film capacitor with the auxiliary heat dissipation structure comprises: A film capacitor body 1, wherein an outer shell structure 2 is fixedly provided on the outer surface of the film capacitor body 1, and an air-cooling heat dissipation component 3 is fixedly connected to the upper end of the outer shell structure 2, and the air-cooling heat dissipation component 3 is used to perform air cooling and heat dissipation on the film capacitor body 1; A contact component 4, wherein the contact component 4 is fixedly arranged at the inner wall of the outer shell structure 2, and the contact component 4 contacts the outer wall of the film capacitor body 1, and the contact component 4 is used to assist in holding and fixing the film capacitor body 1 in a high temperature environment; The auxiliary cooling component 5 is fixedly arranged at the side wall of the outer shell structure 2, and is connected to the air-cooling heat dissipation component 3. The auxiliary cooling component 5 is used for automatically assisting heat dissipation during air-cooling heat dissipation.

[0025] Through the above technical scheme, through the coordinated use of the air-cooled heat dissipation component 3, the outer shell structure 2 and the contact component 4, the film capacitor body 1 can be subjected to air-cooled auxiliary heat dissipation. Compared with the ordinary air-blowing heat dissipation structure, the present application focuses on the heat conduction heat dissipation of the film capacitor body 1, which has a better heat dissipation effect. At the same time, an auxiliary cooling component 5 is provided. Through the setting of the auxiliary cooling component 5, auxiliary liquid cooling can be automatically performed while air-cooling heat dissipation is performed, which further achieves a heat dissipation effect and effectively avoids the problem of insufficient heat dissipation effect caused by excessively high external air temperature. In addition, liquid-cooled auxiliary heat dissipation does not require an additional power source and is easy to use. In order to solve the problem in the prior art that ordinary film capacitors are prone to accelerated material aging and loosening and separation between electrodes and films when used in a long-term high-temperature environment, the contact component 4 can be set to automatically hold the film capacitor body 1 at high temperature, thereby playing a role of auxiliary fastening and fixing, reducing the phenomenon of loosening due to aging, and is particularly suitable for use in a long-term high-temperature environment.

[0026] For further technical solutions, see Figure 3 and Figure 4 As shown, the outer shell structure 2 includes a circular shell 201, an air inlet 202, a rubber supporting foot 203, and a fixed bracket 204. The circular shell 201 is fixedly arranged at the arc-shaped wall of the film capacitor body 1, and a plurality of air inlets 202 are opened at the bottom surface of the circular shell 201. A plurality of rubber supporting feet 203 are fixedly connected to the bottom surface of the circular shell 201, and a plurality of fixed brackets 204 are fixedly connected to the arc-shaped wall of the circular shell 201. Through the technical solution, after the film capacitor body 1 is installed to the corresponding position, the rubber supporting foot 203 can play a role in supporting the circular shell 201, and the setting of the air inlet 202 can allow cold air to enter the interior of the circular shell 201.

[0027] For specific technical solutions, please refer to Figure 5As shown, the air-cooling heat dissipation component 3 includes a circular fixed bracket 301, a driving motor 302 and a fan 303. The circular fixed bracket 301 is fixedly arranged at the upper end of the circular shell 201. The fan 303 is rotatably connected to the upper surface of the circular fixed bracket 301, and the driving motor 302 is fixedly connected to the lower surface of the circular fixed bracket 301. The output shaft end of the driving motor 302 is fixedly connected to the fan 303. Through the present technical solution, the fan 303 can be driven to rotate by the operation of the driving motor 302, so that an upward airflow can be formed by the rotation of the fan 303, so that the hot air in the inner cavity of the circular shell 201 can be driven to move upward faster, so that the hot gas is discharged, so that the cold air enters the inner cavity of the circular shell 201 through the air inlet 202 at the bottom end of the circular shell 201, thereby playing the function of assisting the film capacitor body 1 in blowing and dissipating heat.

[0028] As a preferred technical solution, please refer to Figure 6 , Figure 7 and Figure 8 As shown, the contact assembly 4 includes a rectangular fixed shell 401, a rectangular connecting shell 402, an arc-shaped contact plate 403, a connecting hose 404, a fixed bin 405, a fixed cylinder 406, a connecting tube 407 and a push rod 409. The contact assembly 4 is provided with a plurality of them, and the plurality of the contact assemblies 4 are fixedly arranged at the inner wall of the circular shell 201 in an annular shape. The rectangular fixed shell 401 is fixedly arranged at the arc-shaped inner wall of the circular shell 201. An inner cavity is arranged inside the rectangular fixed shell 401. A rectangular connecting shell 402 is slidably connected to the inner cavity of the rectangular fixed shell 401. An arc-shaped contact plate 403 is fixedly connected to one end of the rectangular connecting shell 402. The arc-shaped surface of the arc-shaped contact plate 403 contacts the outer surface of the film capacitor body 1. The rectangular fixed shell 401, the rectangular connecting shell 402 and the arc-shaped contact plate 403 are all made of heat-conducting materials. Through the technical solution, the arc-shaped contact plate 403 can make contact with the film capacitor body 1 through the heat-conducting effect, and the heat generated by the film capacitor body 1 is conducted to the arc-shaped contact plate 403, the rectangular connecting shell 402 and the rectangular fixed shell 401, so that when the air-cooled heat dissipation component 3 is air-cooled and heat-dissipated, the heat dissipation area of ​​the air-cooled heat dissipation is increased, thereby improving the heat dissipation effect, accelerating the heat extraction, and achieving a better heat dissipation effect.

[0029] For further technical solutions, see Fig. 9 , Fig.10 and Fig.11As shown, the auxiliary cooling component 5 includes a bevel gear A501, a fixed bracket 502, a rotating rod 503, a bevel gear B504, a pinion 505, a rotating rod 506, a gear plate 507, a connecting frame A508, a connecting cylinder 509, a piston 510, a movable guide rod 511, a connecting frame B512 and a storage bin 515. The bevel gear A501 is fixedly arranged at the central axis position of the fan 303, the fixed bracket 502 is fixedly arranged at the upper surface of the circular shell 201, and the rotating rod 503 is rotatably connected to the fixed bracket 502. One side of the rotating rod 503 is connected to the rotating rod 503. A bevel gear B504 is fixedly connected to the end of the rotating rod 503, and the bevel gear B504 and the bevel gear A501 are meshed with each other. A pinion gear 505 is fixedly connected to the other end of the rotating rod 503. Through the technical solution, when the fan 303 rotates, the bevel gear A501 can be automatically driven to rotate, and then the bevel gear B504 can be driven to rotate through the rotation of the bevel gear A501, so that the rotating rod 503 can be driven to rotate through the rotation of the bevel gear B504, and then the pinion gear 505 can be driven to rotate, thereby realizing the automatic rotation function of the pinion gear 505; The rotating rod 506 is disposed at the side wall of the circular housing 201 and is rotatably connected to the circular housing 201. A gear plate 507 is fixedly connected to the rotating rod 506. The gear plate 507 and the pinion 505 are meshed with each other. According to the technical solution, the rotation of the pinion 505 can drive the gear plate 507 to rotate, thereby realizing the rotation function of the gear plate 507. A connecting frame A508 is fixedly connected to the bottom end of the connecting cylinder 509, and the connecting frame A508 is arranged on the side wall of the circular shell 201 and is rotatably connected to the circular shell 201. A piston 510 is slidably connected in the inner cavity of the connecting cylinder 509, and one end of a movable guide rod 511 is fixedly connected to the upper surface of the piston 510. The other end of the movable guide rod 511 passes through the upper wall of the inner cavity of the connecting cylinder 509 and extends outside the wall. A connecting frame B512 is fixedly connected to the top of the movable guide rod 511. The connecting frame B512 is arranged on the side wall of the gear plate 507 and is rotatably connected to the gear plate 507. An input hose 513 is fixedly connected to the bottom side of the inner cavity of the connecting cylinder 509. end, the other end of the input hose 513 extends into the inner cavity of the storage bin 515 and is fixedly connected to the storage bin 515, an input check valve is installed on the input hose 513, one end of the output hose 514 is fixedly connected to the bottom side of the inner cavity of the connecting cylinder 509, the other end of the output hose 514 extends into the inner cavity of the arc-shaped contact plate 403 and is fixedly connected to the arc-shaped contact plate 403, an output check valve is installed on the output hose 514, through the technical solution, when the gear plate 507 rotates, it can drive the connecting frame B512 to move in a ring shape, thereby driving the moving guide rod 511 to reciprocate, and then driving the piston 510 to reciprocate in the inner cavity of the connecting cylinder 509; The storage bin 515 is fixedly arranged at the arc-shaped outer wall of the circular shell 201, the inner cavity of the storage bin 515 is filled with coolant, a plurality of metal fins 517 are fixedly arranged at the outer wall of the storage bin 515, one end of a return pipe 516 is fixedly connected to the inner cavity of the storage bin 515, the other end of the return pipe 516 extends into the inner cavity of the arc-shaped contact plate 403 and is fixedly connected to the arc-shaped contact plate 403, through the technical solution, when the piston 510 moves upward in the inner cavity of the connecting tube 509, the coolant in the inner cavity of the storage bin 515 can be sucked through the input hose 513, so that the coolant enters the inner cavity of the connecting tube 509, and when the piston 510 moves downward in the inner cavity of the connecting tube 509 The cooling liquid in the inner cavity of the connecting tube 509 can be output through the output hose 514 and transported to the inner cavity of the arc-shaped contact plate 403, so that the cooling liquid enters the inner cavity of the arc-shaped contact plate 403, and the cooling liquid plays an auxiliary role in liquid cooling and heat dissipation for the film capacitor body 1, further accelerating the heat extraction, and the cooling liquid continuously flows into the inner cavity of the arc-shaped contact plate 403 through the continuous reciprocating motion of the moving piston 408, and the cooling liquid in the inner cavity of the arc-shaped contact plate 403 can be refluxed to the inner cavity of the storage bin 515 through the reflux pipe 516, realizing the function of circulating the cooling liquid, playing a better auxiliary heat conduction and heat dissipation function, and no additional power source is required during liquid cooling and heat dissipation, and it is easy to use.

[0030] As a preferred technical solution, please refer to Figure 7 and Figure 8 As shown, a fixed bin 405 is fixedly connected to the outer surface of the rectangular fixed shell 401, a fixed cylinder 406 is fixedly connected to the inner cavity of the rectangular fixed shell 401, a movable piston 408 is slidably connected to the inner cavity of the fixed cylinder 406, one end of a push rod 409 is fixedly connected to the upper surface of the movable piston 408, the other end of the push rod 409 penetrates the upper wall of the inner cavity of the fixed cylinder 406 and extends to the outside of the wall, one end of the push rod 409 is fixedly connected to the inner cavity wall of the rectangular connecting shell 402, the fixed bin 405 and the fixed cylinder 406 are both made of brass, the inner cavities of the fixed cylinder 406 and the fixed bin 405 are filled with alcohol solution, one end of a connecting tube 407 is fixedly connected to the inner cavity of the fixed bin 405, the other end of the connecting tube 407 extends to the inner cavity of the fixed cylinder 406 and is fixedly connected to the fixed cylinder 406, through the technical solution, when the film capacitor body 1 is at a high temperature for a long time, due to the circular The temperature in the inner cavity of the rectangular shell 201 is relatively high, and the relatively high temperature will cause the fixed chamber 405 to be continuously heated, so that the alcohol solution in the inner cavity of the fixed chamber 405 expands due to the continuous temperature rise, thereby pushing the movable piston 408 to move through the volume expansion, and then the movement of the movable piston 408 can drive the push rod 409 to move, and the movement of the push rod 409 can push the rectangular connecting shell 402 to move, so that the movement of the rectangular connecting shell 402 can push the arc contact plate 403 to move, so that the movement of several arc contact plates 403 can make several arc contact plates 403 clamp the center, and hold the film capacitor body 1 tightly, playing a role of fastening and fixing. It can be seen from the above description that under the condition of continuous high temperature, the film capacitor body 1 can be automatically held and fixed, playing a role of auxiliary fixing, thereby avoiding the loosening and separation between the electrode and the film, and playing a function of automatic auxiliary fixing; Example

[0031] See also Fig.12 and Fig.13 As shown, One end of the push rod (409) is fixedly connected to a connecting circular plate (410), one end of the connecting circular plate (410) is fixedly connected to one end of a control spring (412), the other end of the control spring (412) is fixedly connected to a moving block (411), the moving block (411) is slidably matched with the rectangular connecting shell (402), inner cavities are provided on both sides of the moving block (411), and locking pins (413) are slidably connected to the inner cavities on both sides of the moving block (411). ), one end of the locking pin (413) contacts the inner wall of the rectangular connection shell (402), and the other end of the locking pin (413) is fixedly connected to one end of a compression spring (414), and the other end of the compression spring (414) is fixedly connected to the inner wall of the moving block (411). The compression spring (414) is in a compressed state. Through the technical solution, the locking pin (413) can be pressed against the inner wall of the rectangular connection shell (402) by setting the compression spring (414), thereby generating A friction force, when the temperature rises, the volume of the alcohol solution in the inner cavity of the fixed chamber (405) increases, pushing the push rod (409) to move, and the movement of the push rod (409) can drive the control spring (412) to be compressed, so that the force generated by the compression is transmitted to the rectangular connecting shell (402), and then transmitted to the arc contact plate (403), so that the arc contact plate (403) is clamped inwardly to assist in fixing the film capacitor body (1), and at the same time, the force of the clamping inwardly is generated by the control spring (41 2) The compression amount is controlled. When a threshold value is reached, the threshold value is the friction force generated by the locking pin (413) pressing against the rectangular connecting shell (402). The moving block (411) can be moved to prevent the control spring (412) from continuing to be compressed, so that the compression force of the control spring (412) can be controlled below the threshold value, thereby keeping the concentric clamping force of the arc-shaped contact plate (403) below the threshold value, thereby ensuring that the film capacitor body (1) is fixed while avoiding damage to the film capacitor body (1).

[0032] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.

[0033] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A film capacitor with an auxiliary heat dissipation structure, characterized in that: The film capacitor with auxiliary heat dissipation structure comprises: A film capacitor body (1), wherein an outer shell structure (2) is fixedly arranged on the outer surface of the film capacitor body (1), and an air-cooling and heat-dissipating component (3) is fixedly connected to the upper end of the outer shell structure (2), and the air-cooling and heat-dissipating component (3) is used to air-cool the film capacitor body (1); A contact component (4), the contact component (4) being fixedly arranged on the inner cavity wall of the outer shell structure (2), the contact component (4) being in contact with the outer wall of the film capacitor body (1), and the contact component (4) being used to assist in clamping and fixing the film capacitor body (1) in a high temperature environment; An auxiliary cooling component (5), the auxiliary cooling component (5) is fixedly arranged at a side wall position of the outer shell structure (2), the auxiliary cooling component (5) is connected to the air cooling heat dissipation component (3), and the auxiliary cooling component (5) is used to automatically assist in heat dissipation during air cooling heat dissipation.

2. The film capacitor with auxiliary heat dissipation structure according to claim 1, characterized in that: The outer shell structure (2) comprises a circular shell (201), an air inlet (202), a rubber support foot (203), and a fixed stand (204); the circular shell (201) is fixedly arranged on the arc-shaped wall of the film capacitor body (1); a plurality of air inlets (202) are provided on the bottom surface of the circular shell (201); a plurality of rubber support feet (203) are fixedly connected to the bottom surface of the circular shell (201); and a plurality of fixed stands (204) are fixedly connected to the arc-shaped wall of the circular shell (201).

3. The film capacitor with auxiliary heat dissipation structure according to claim 2, characterized in that: The air-cooling heat dissipation component (3) comprises a circular fixed bracket (301), a drive motor (302) and a fan (303); the circular fixed bracket (301) is fixedly arranged at the upper end of the circular shell (201); the fan (303) is rotatably connected to the upper surface of the circular fixed bracket (301); the drive motor (302) is fixedly connected to the lower surface of the circular fixed bracket (301); and the output shaft end of the drive motor (302) is fixedly connected to the fan (303).

4. The film capacitor with auxiliary heat dissipation structure according to claim 1, characterized in that: The contact assembly (4) comprises a rectangular fixed shell (401), a rectangular connecting shell (402), an arc-shaped contact plate (403), a connecting hose (404), a fixed bin (405), a fixed cylinder (406), a connecting tube (407) and a push rod (409). The contact assembly (4) is provided in a plurality of pieces, and the plurality of contact assemblies (4) are fixedly arranged in an annular shape on the inner wall of the circular shell (201). The rectangular fixed shell (401) is fixedly arranged on the arc-shaped inner wall of the circular shell (201). An inner cavity is provided inside the rectangular fixed shell (401), and a rectangular connecting shell (402) is slidably connected to the inner cavity of the rectangular fixed shell (401). An arc-shaped contact plate (403) is fixedly connected to one end of the rectangular connecting shell (402), and the arc-shaped surface of the arc-shaped contact plate (403) contacts the outer surface of the film capacitor body (1).

5. The film capacitor with auxiliary heat dissipation structure according to claim 4, characterized in that: The rectangular fixing shell (401), the rectangular connecting shell (402) and the arc-shaped contact plate (403) are all made of heat-conducting materials.

6. The film capacitor with auxiliary heat dissipation structure according to claim 4, characterized in that: The outer surface of the rectangular fixed shell (401) is fixedly connected to a fixed chamber (405), the inner cavity of the rectangular fixed shell (401) is fixedly connected to a fixed cylinder (406), the inner cavity of the fixed cylinder (406) is slidably connected to a movable piston (408), the upper surface of the movable piston (408) is fixedly connected to one end of a push rod (409), the other end of the push rod (409) penetrates the upper wall of the inner cavity of the fixed cylinder (406) and extends outside the wall, and the push rod (409) is fixedly connected to the inner cavity of the fixed cylinder (406). 09) is fixedly connected to the inner cavity wall of the rectangular connecting shell (402), the fixed chamber (405) and the fixed cylinder (406) are both made of brass, the inner cavities of the fixed cylinder (406) and the fixed chamber (405) are filled with alcohol solution, one end of the connecting tube (407) is fixedly connected to the inner cavity of the fixed chamber (405), and the other end of the connecting tube (407) extends into the inner cavity of the fixed cylinder (406) and is fixedly connected to the fixed cylinder (406).

7. The film capacitor with auxiliary heat dissipation structure according to claim 1, characterized in that: The auxiliary cooling component (5) comprises a bevel gear A (501), a fixed bracket (502), a rotating rod (503), a bevel gear B (504), a pinion (505), a rotating rod (506), a gear plate (507), a connecting frame A (508), a connecting cylinder (509), a piston (510), a movable guide rod (511), a connecting frame B (512) and a storage bin (515); the bevel gear A (501) is fixedly arranged at the central axis position of the fan (303); the fixed bracket (502) is fixedly arranged at the upper surface of the circular shell (201); the fixed bracket (502) is rotatably connected to the rotating rod (503); one end of the rotating rod (503) is fixedly connected to the bevel gear B (504); the bevel gear B (504) and the bevel gear A (501) are meshed with each other; and the other end of the rotating rod (503) is fixedly connected to the pinion (505).

8. The film capacitor with auxiliary heat dissipation structure according to claim 7, characterized in that: The rotating rod (506) is arranged on the side wall of the circular shell (201) and is rotatably connected to the circular shell (201). A gear plate (507) is fixedly connected to the rotating rod (506), and the gear plate (507) and the pinion (505) are meshed with each other.

9. The film capacitor with auxiliary heat dissipation structure according to claim 7, characterized in that: A connecting frame A (508) is fixedly connected to the bottom end of the connecting cylinder (509), and the connecting frame A (508) is arranged on the side wall of the circular shell (201) and is rotatably connected to the circular shell (201). A piston (510) is slidably connected in the inner cavity of the connecting cylinder (509), and one end of a movable guide rod (511) is fixedly connected to the upper surface of the piston (510), and the other end of the movable guide rod (511) passes through the upper wall of the inner cavity of the connecting cylinder (509) and extends outside the wall. A connecting frame B (512) is fixedly connected to the top end of the movable guide rod (511), and the connecting frame B (512) is arranged on the side wall of the gear plate (507) and is rotatably connected to the inner cavity of the connecting cylinder (509). The connecting tube (509) is rotationally connected to the gear plate (507); one end of an input hose (513) is fixedly connected to the bottom side of the inner cavity of the connecting tube (509); the other end of the input hose (513) extends into the inner cavity of the storage bin (515) and is fixedly connected to the storage bin (515); an input check valve is installed on the input hose (513); one end of an output hose (514) is fixedly connected to the bottom side of the inner cavity of the connecting tube (509); the other end of the output hose (514) extends into the inner cavity of the arc-shaped contact plate (403) and is fixedly connected to the arc-shaped contact plate (403); and an output check valve is installed on the output hose (514).

10. The film capacitor with auxiliary heat dissipation structure according to claim 7, characterized in that: The storage bin (515) is fixedly arranged on the arc-shaped outer wall of the circular shell (201); the inner cavity of the storage bin (515) is filled with cooling liquid; a plurality of metal fins (517) are fixedly arranged on the outer wall of the storage bin (515); one end of a return pipe (516) is fixedly connected to the inner cavity of the storage bin (515); the other end of the return pipe (516) extends into the inner cavity of the arc-shaped contact plate (403) and is fixedly connected to the arc-shaped contact plate (403).

Images