Capacitor vacuum impregnation device

Abstract

A capacitor vacuum impregnation device disclosed by the present application comprises an impregnation tank and a fixing device, the fixing device comprises a pressing and fixing assembly, a first mounting member and a second mounting member, the pressing and fixing assembly and the first mounting member are arranged on the outer side wall of a tank body, the second mounting member is arranged on the outer side wall of a tank cover, and the pressing and fixing assembly is rotatably arranged. The movable part moves between a first position and a second position; when the pressing and fixing assembly is located at the first position, the pressing and fixing assembly can be matched with the second mounting piece in a pressing mode so as to press and fix the tank cover to the tank body, and when the pressing and fixing assembly is located at the second position, the pressing and fixing assembly is matched with the first mounting piece in a rotation-stopping mode so that a gap can be formed between the pressing and fixing assembly and the outer side wall of the tank body. According to the capacitor vacuum impregnation device provided by the invention, the disassembly and assembly of the impregnation tank are simple and convenient, bolt disassembly and assembly and bolt storage are not needed, the manual operation burden of disassembly and assembly of the impregnation tank is reduced, and the pressing and fixing assembly does not impact the outer side wall of the tank body when swinging downwards; the situation that the appearance of the tank body is damaged due to collision of the pressing and fixing assembly is avoided.

Description

Technical Field

[0001] This utility model generally relates to the field of capacitors, and more particularly to a capacitor vacuum impregnation apparatus. Background Technology

[0002] During the manufacturing process of capacitors, a vacuum impregnation device is required for vacuum impregnation treatment to improve the electrical performance of the capacitors. Chinese Patent (CN208938828U) discloses a capacitor impregnation device, including an impregnation tank, on which a sealing cover is fixedly installed by fastening bolts.

[0003] However, the aforementioned existing capacitor impregnation apparatus has the following problems:

[0004] When installing the sealing cap onto the impregnation tank, each fastening bolt needs to be precisely aligned with the corresponding threaded connection hole on the impregnation tank. Furthermore, after removing the sealing cap, the fastening bolts also need to be properly stored, which increases the difficulty and burden on the operators. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a capacitor vacuum impregnation apparatus.

[0006] This application provides a capacitor vacuum impregnation apparatus, including an impregnation tank and a fixing device. The impregnation tank includes a tank body and a tank cover. The fixing device includes a clamping assembly, a first mounting member and a second mounting member. The clamping assembly and the first mounting member are disposed on the outer side wall of the tank body, and the second mounting member is disposed on the outer side wall of the tank cover. The clamping assembly is rotatably disposed in a direction close to or away from the second mounting member so as to move between a first position and a second position.

[0007] In the first position, the clamping assembly can be pressed into the second mounting component to clamp the can lid onto the can body. In the second position, the clamping assembly and the second mounting component are separated, and the clamping assembly is anti-rotatingly engaged with the first mounting component, so that there is a gap between the clamping assembly and the outer wall of the can body.

[0008] Furthermore, the clamping assembly includes a clamping rod and a clamping member, the clamping member being disposed on the clamping rod and movably disposed along the axial direction of the clamping rod, wherein the clamping rod is rotatably disposed on the first mounting member.

[0009] Furthermore, the second mounting member has a pressing mating surface on the side away from the first mounting member, which is used to press and fit with the clamping fastener. The first mounting member has a connecting member on the side away from the first mounting member, and the pressure rod is rotatably connected to the connecting member. The side of the first mounting member away from the tank body has a through first clearance groove, and the side of the second mounting member away from the tank cover has a through second clearance groove. The first clearance groove and the second clearance groove are arranged in a direction perpendicular to the rotation axis of the pressure rod. In the second position, the pressure rod enters the first clearance groove and the second clearance groove.

[0010] Furthermore, the portion of the second mounting member away from the side of the first mounting member constitutes a press-fit surface, and the press-fit surface intersects with the second clearance groove.

[0011] Furthermore, the pressure rod includes a rotatable connecting end, which is rotatably connected to the connecting member. The rotatable connecting end has an anti-rotation part on one side in a direction perpendicular to the rotation axis of the pressure rod. In the second position, the anti-rotation part is anti-rotated with the side of the first mounting member away from the second mounting member.

[0012] Furthermore, the clamping component includes a clamping tube, which is screwed to the clamping rod.

[0013] Furthermore, the clamping component also includes an operating lever, which is disposed within the clamping tube.

[0014] Furthermore, there are multiple fixing devices, and these multiple fixing devices are arranged at intervals around the outer periphery of the tank.

[0015] Furthermore, it also includes a vacuum pump, which is connected to the impregnation tank via a pipeline, and a one-way valve is installed in the pipeline.

[0016] Furthermore, it also includes a filter tank, which is installed in the pipeline and located between the impregnation tank and the check valve.

[0017] According to the technical solution provided in the embodiments of this application, the impregnation tank is equipped with a fixing device. The first mounting part and the clamping component of the fixing device are disposed on the outer side wall of the tank body, and the second mounting part of the fixing device is disposed on the outer side wall of the tank cover. The clamping component moves between a first position and a second position. When the clamping component is in the first position, it can press and cooperate with the second mounting part to clamp the tank cover to the tank body. When the clamping component is in the second position, it is separated from the second mounting part, and the clamping component is anti-rotationally engaged with the first mounting part, so that there is a gap between the clamping component and the outer side wall of the tank body. This not only makes the disassembly and assembly of the tank body and the tank cover simple and convenient, eliminating the need for bolt disassembly and bolt storage, thus reducing the manual operation burden of disassembling and assembling the impregnation tank, but also prevents the clamping component from hitting the outer side wall of the tank body when it swings down, thus avoiding damage to the tank body caused by the impact of the clamping component. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the capacitor vacuum impregnation apparatus provided in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the impregnation tank provided in this embodiment;

[0021] Figure 3 for Figure 2 Enlarged view of part A in the image. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Please refer to Figure 1-3 This application provides a capacitor vacuum impregnation apparatus, including an impregnation tank 100 and a fixing device 130. The impregnation tank 100 includes a tank body 110 and a tank cover 120. The fixing device 130 is disposed on the tank body 110 and the tank cover 120 to fix the tank cover 120 to the tank body 110. The fixing device 130 includes a clamping assembly, a first mounting member, and a second mounting member. The clamping assembly and the first mounting member are disposed on the outer side wall of the tank body 110, and the second mounting member is disposed on the outer side wall of the tank cover 120. The first mounting member and the second mounting member are disposed opposite to each other. The clamping assembly is rotatably disposed in a direction close to or away from the second mounting member to move between a first position and a second position.

[0025] In the first position, the clamping assembly can be pressed against the second mounting member to clamp the can lid 120 onto the can body 110, thus fixing the can lid 120 and the can body 110 together. In the second position, the clamping assembly and the second mounting member separate, allowing the can lid 120 and the can body 110 to be separated. At the same time, the clamping assembly and the first mounting member are anti-rotationally engaged, creating a gap between the clamping assembly and the outer wall of the can body 110, preventing the clamping assembly from directly impacting the outer wall of the can body 110 when rotating downwards.

[0026] In this embodiment, by rotating the clamping assembly onto the outer wall of the tank body 110 and using the clamping assembly to clamp the tank cover 120 onto the tank body 110, the disassembly and assembly of the tank body 110 and the tank cover 120 is simple and convenient, eliminating the need for bolt disassembly and bolt storage, thus reducing the manual operation burden of disassembling and assembling the impregnation tank 100. Simultaneously, the downward rotation limit position of the clamping assembly is limited to a second position, and in the second position, the clamping assembly and the first mounting component are anti-rotationally engaged, creating a gap between the clamping assembly and the outer wall of the tank body 110. This prevents the clamping assembly from impacting the outer wall of the tank body 110 during downward swing, avoiding external damage to the tank body 110 from impact.

[0027] In some embodiments of this application, the clamping assembly includes a clamping rod 134 and a clamping member. The clamping member is disposed on the clamping rod 134 and is movably disposed along the axial direction of the clamping rod 134, wherein the clamping rod 134 is rotatably disposed on the first mounting member. In the first position, the clamping member is located on the side of the second mounting member away from the first mounting member. The clamping member is moved toward the second mounting member to clamp the can lid 120 to the can body 110. When rotating from the first position to the second position, the clamping member needs to be moved away from the second mounting member to release the clamping member from the can lid 120. Then, the clamping rod 134 is rotated downward to separate the clamping assembly from the can lid 120, so that the can lid 120 and the can body 110 can be separated. The above-described clamping assembly has a simple structure and is easy to operate.

[0028] Optionally, the pressure rod 134 is rotatably connected to the first mounting member, which helps to simplify the structure of the fixing device 130. Of course, in other embodiments, the pressure rod 134 may also be directly rotatably connected to the outer wall of the tank 110.

[0029] Optionally, the clamping component includes a clamping tube 135, which is screwed to a clamping rod 134. The movement of the clamping tube 135 is achieved through the screw connection between the clamping tube 135 and the clamping rod 134, making the movement of the clamping component simple and convenient, enabling high-precision position adjustment, and providing good clamping strength for the can lid 120. The clamping component also includes an operating rod 136, which is disposed on the clamping tube 135, allowing the operator to rotate the clamping tube 135. Preferably, the operating rod 136 is perpendicular to the axial direction of the clamping tube 135.

[0030] Furthermore, the clamping component also includes an operating lever 136, which is disposed on the clamping tube 135.

[0031] In some embodiments of this application, the second mounting member has a press-fit surface 1322 on the side away from the first mounting member, and the second mounting member is press-fitted with the clamping fastener through the press-fit surface 1322. The first mounting member has a connector on the side away from the first mounting member, and the pressure rod 134 is rotatably connected to the connector. The side of the first mounting member away from the tank body 110 has a through-hole first clearance groove 1311, and the side of the second mounting member away from the tank cover 120 has a through-hole second clearance groove 1321. The first clearance groove 1311 and the second clearance groove 1321 are arranged along a direction perpendicular to the rotation axis of the pressure rod 134. In the second position, the pressure rod 134 enters the first clearance groove 1311 and the second clearance groove 1321. This arrangement simplifies the structure of the fixing device 130 and reduces its volume, and also protects the pressure rod 134 located within the clearance grooves.

[0032] Optionally, the portion of the second mounting member away from the side of the first mounting member forms a press-fit surface 1322, and the press-fit surface 1322 intersects with the second clearance groove 1321, simplifying the structure of the fixing device 130.

[0033] Optionally, the connector is a connecting rod and is located on the side of the first clearance groove 1311 away from the second clearance groove 1321.

[0034] Optionally, the press-fit surface 1322 is set horizontally, and in the second position, the press rod 134 is in a vertical state.

[0035] In some embodiments of this application, the pressure rod 134 includes a rotatable connecting end, which is rotatably connected to a connecting member. The rotatable connecting end has an anti-rotation portion on one side along a direction perpendicular to the rotation axis of the pressure rod 134. In the second position, the anti-rotation portion engages with the side of the first mounting member away from the second mounting member to prevent rotation. This arrangement ensures that the rotation angle of the pressure rod 134 when switching between the first and second positions is greater than 90° and less than 180°, enabling the pressure assembly to be close to the outer wall of the tank 110 when in the second position, thus preventing the pressure assembly in the second position from posing a safety hazard to workers.

[0036] Optionally, the anti-rotation part can be an anti-rotation protrusion 137, which is provided on the rotating connection end.

[0037] In some embodiments of this application, there are multiple fixing devices 130, and the multiple fixing devices 130 are arranged at intervals around the outer periphery of the tank body 110, so that the pressure stability between the tank cover 120 and the tank body 110 is good.

[0038] Optionally, among the multiple fixing devices 130, the multiple first mounting components can be arranged independently and at intervals, or the multiple first mounting components can be integrally connected; the multiple second mounting components can be arranged independently and at intervals, or the multiple second mounting components can be integrally connected; and the multiple connectors can be arranged independently and at intervals, or the multiple connectors can be integrally connected. Preferably, the multiple first mounting components are integrally connected. Specifically, a first mounting ring 131 is provided on the outer periphery of the top of the tank body 110, and the multiple first mounting components are all parts of the first mounting ring 131, so as to simplify the connection operation between the multiple first mounting components and the tank body 110. The multiple second mounting components are integrally connected. Specifically, a second mounting ring 132 is provided on the outer periphery of the tank cover 120, and the multiple second mounting components are all parts of the second mounting ring 132, so as to simplify the connection operation between the multiple second mounting components and the tank cover 120. A connecting ring rod 133 is provided on the side of the first mounting ring 131 away from the second mounting ring 132. The connecting ring rod 133 is arranged around the outer periphery of the tank body 110, and the multiple connecting components are all parts of the connecting ring rod 133, so as to simplify the connection operation between the multiple connecting components and the first mounting ring 131.

[0039] In some embodiments of this application, a vacuum pump 300 is also included, which is connected to the impregnation tank 100 via a pipeline 500, wherein a one-way valve 400 is provided in the pipeline.

[0040] The aforementioned one-way valve 400 is a pneumatic one-way valve 400. When the vacuum pump 300 is working, the one-way valve 400 is in a connected state under the different pressures of the vacuum pump 300 and the impregnation tank 100, allowing the vacuum pump 300 to evacuate the impregnation tank 100. After the vacuum pump 300 stops, the pressure of the vacuum pump 300 and the impregnation tank 100 changes, causing the one-way valve 400 to be in a closed state. This prevents substances such as oil in the vacuum pump 300 from flowing back into the impregnation tank 100 under the negative pressure, thus ensuring the quality of the capacitor.

[0041] Optionally, a filter canister 200 is also included. The filter canister 200 is disposed in the pipeline 500 and is used to filter the electropaste mist in the pipeline 500 to prevent the electropaste mist generated by the impregnation tank 100 from entering the vacuum pump 300. The filter canister 200 is located between the impregnation tank 100 and the one-way valve 400 to prevent residual electropaste mist in the filter canister 200 from flowing back into the impregnation tank 100 after the vacuum pump 300 stops, thus ensuring the quality of the capacitor.

[0042] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention; the directional terms "inner" and "outer" refer to the inside or outside relative to the outline of each component itself. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0043] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A capacitor vacuum impregnation apparatus, characterized in that, The device includes an impregnation tank and a fixing device. The impregnation tank includes a tank body and a tank cover. The fixing device includes a clamping assembly, a first mounting member and a second mounting member. The clamping assembly and the first mounting member are disposed on the outer side wall of the tank body. The second mounting member is disposed on the outer side wall of the tank cover. The clamping assembly is rotatably disposed in a direction close to or away from the second mounting member so as to move between a first position and a second position. In the first position, the clamping assembly can be pressed into the second mounting member to clamp the can lid onto the can body. In the second position, the clamping assembly and the second mounting member are separated, and the clamping assembly is anti-rotationally engaged with the first mounting member, so that there is a gap between the clamping assembly and the outer wall of the can body.

2. The capacitor vacuum impregnation apparatus according to claim 1, characterized in that, The clamping assembly includes a clamping rod and a clamping member, the clamping member being disposed on the clamping rod and being movably disposed along the axial direction of the clamping rod, wherein the clamping rod is rotatably disposed on the first mounting member.

3. The capacitor vacuum impregnation apparatus according to claim 2, characterized in that, The second mounting member has a pressing mating surface on the side away from the first mounting member, which is used to press and fit with the pressing fastener. The first mounting member has a connecting member on the side away from the first mounting member, and the pressure rod is rotatably connected to the connecting member. The side of the first mounting member away from the tank body has a through first clearance groove, and the side of the second mounting member away from the tank cover has a through second clearance groove. The first clearance groove and the second clearance groove are arranged in a direction perpendicular to the rotation axis of the pressure rod. In the second position, the pressure rod enters the first clearance groove and the second clearance groove.

4. The capacitor vacuum impregnation apparatus according to claim 3, characterized in that, The portion of the second mounting member away from the side of the first mounting member constitutes the press-fit surface, and the press-fit surface intersects with the second clearance groove.

5. The capacitor vacuum impregnation apparatus according to claim 3, characterized in that, The pressure rod includes a rotatable connecting end, which is rotatably connected to the connecting member. The rotatable connecting end has an anti-rotation part on one side in a direction perpendicular to the rotation axis of the pressure rod. In the second position, the anti-rotation part is anti-rotated with the side of the first mounting member away from the second mounting member.

6. The capacitor vacuum impregnation apparatus according to claim 2, characterized in that, The clamping component includes a clamping tube, which is screwed to the clamping rod.

7. The capacitor vacuum impregnation apparatus according to claim 6, characterized in that, The clamping component also includes an operating lever, which is disposed on the clamping tube.

8. The capacitor vacuum impregnation apparatus according to claim 1, characterized in that, There are multiple fixing devices, and the multiple fixing devices are arranged at intervals around the outer periphery of the tank.

9. The capacitor vacuum impregnation apparatus according to any one of claims 1-8, characterized in that, It also includes a vacuum pump, which is connected to the impregnation tank via a pipeline, and the pipeline is equipped with a one-way valve.

10. The capacitor vacuum impregnation apparatus according to claim 9, characterized in that, It also includes a filter tank, which is disposed in the pipeline and located between the impregnation tank and the one-way valve.

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