Axial capacitor with a sealing structure

Abstract

The utility model relates to an axial capacitor with sealing structure, including the outer casing, the upper and lower of outer casing are provided with seal cover respectively, the seal cover of upper is attached on the top of outer casing, and the seal cover of lower is connected on the bottom of outer casing through bolt, be provided with capacitor core in the outer casing, the top and bottom of capacitor core are connected with the electrode that leads out respectively, the top of seal cover is provided with the lead -out hole that is matched with electrode that leads out, the electrode that leads out and capacitor core are far from one end to lead -out hole, and extend to the outside of outer casing. The technical scheme passes through the mutual cooperation between rotation ring, arc slot and sealing ring etc. parts, makes it can carry out effective extension resistance and contact, thereby makes it can carry out effective extrusion to sealing ring, and further makes it can make sealing ring and capacitor core and electrode that lead out closely attach, improved its sealing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of axial capacitor technology, and specifically to an axial capacitor with a sealed structure. Background Technology

[0002] An axial capacitor is a capacitor in which the lead wires extend from both ends of a cylindrical element along the axial direction, as opposed to a radial capacitor where the lead wires extend from the same side. For example, an axial capacitor with a sealed structure, as disclosed in application number 201921149284.5, forms a seal through a sealing ring that is in close contact with a metal disc, ensuring that the axial capacitor will not leak when potting material is poured in, thus guaranteeing its sealing performance and operability.

[0003] However, the above structure cannot effectively extend and resist during use, thus failing to effectively compress the sealing ring. Consequently, it cannot ensure a tight fit between the sealing ring and the capacitor core and lead-out electrodes, reducing its sealing efficiency. Furthermore, the sealing ring is prone to detachment, resulting in ineffective sealing and reduced usage and operating efficiency. Therefore, we propose an axial capacitor with a sealing structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes an axial capacitor with a sealed structure that can effectively extend and resist, thereby effectively compressing the sealing ring and ensuring a tight fit between the sealing ring and the capacitor core and lead electrodes, thus improving its sealing efficiency.

[0005] This utility model provides the following technical solution: an axial capacitor with a sealed structure, including a housing, with sealing cover plates respectively provided on the top and bottom of the housing. The upper sealing cover plate is attached to the top of the housing, and the lower sealing cover plate is bolted to the bottom of the housing. A capacitor core is disposed inside the housing, and lead electrodes are respectively connected to the top and bottom of the capacitor core. A lead hole matching the lead electrode is opened on the top of the sealing cover plate. The end of the lead electrode that is away from the capacitor core passes through the lead hole and extends out of the housing.

[0006] As a preferred embodiment of this utility model, the capacitor core is provided with an inner shell, and the top and bottom of the inner shell are respectively bolted to a rotating ring. The two rotating rings are respectively sleeved in the outer shell near the top and bottom by bearings. The top of the inner shell passes through the upper rotating ring and is bolted to the bottom of the upper sealing cover.

[0007] As a preferred embodiment of this utility model, the top of the rotating ring is provided with a number of evenly distributed arc-shaped grooves, a round rod is sleeved in the arc-shaped groove, the end of the round rod opposite to the sealing cover plate passes through the arc-shaped groove and is connected to a movable plate by bolts, and a limiting groove matching the movable plate is provided on the inner wall of the arc-shaped groove.

[0008] As a preferred embodiment of this utility model, several movable plates are respectively bolted to one side of each other with an arc-shaped positioning plate, and a sealing ring is sleeved between the several arc-shaped positioning plates.

[0009] As a preferred embodiment of this utility model, the lead-out electrode is provided with a sealing ring, and the outer wall of the sealing ring is fitted into the lead-out hole.

[0010] As a preferred embodiment of this utility model, the two sealing rings are respectively sleeved at the connection between the two lead electrodes and the capacitor core, and the two sealing rings are arranged symmetrically about the central axis of the capacitor core.

[0011] As a preferred embodiment of this utility model, a fixing ring is sleeved on the outer shell near the top, and the top of the sealing cover and the fixing ring are respectively provided with a number of evenly distributed fastening screw holes.

[0012] The beneficial effects of this utility model are:

[0013] 1. This technical solution utilizes the interaction between components such as the rotating ring, arc groove, and sealing ring to achieve effective extension and contact, thereby effectively compressing the sealing ring and ensuring a tight fit between the sealing ring and the capacitor core and lead-out electrodes, thus improving the sealing efficiency.

[0014] 2. This technical solution, through the cooperation between components such as the movable plate, round rod, and arc-shaped positioning plate, makes it difficult for the sealing ring to detach, thereby enabling it to seal effectively and improving its usage efficiency and working efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0017] Figure 3 for Figure 1 Exploded perspective view of components such as the central rotating ring and the arc-shaped positioning plate;

[0018] Figure 4 for Figure 1 A three-dimensional view viewed from below;

[0019] Figure 5 for Figure 1 Partial 3D view of components such as the inner shell;

[0020] Figure 6 for Figure 1 A partial 3D view of the capacitor core and other components;

[0021] Figure 7 for Figure 1 Partial 3D view of components such as the central sealing ring;

[0022] Figure 8 for Figure 1 Partial 3D view of components such as the central sealing ring.

[0023] In the diagram: 1. Outer shell; 2. Fixing ring; 3. Lead-out hole; 4. Lead-out electrode; 5. Sealing ring; 6. Sealing cover plate; 7. Fastening screw hole; 8. Capacitor core; 9. Inner shell; 10. Arc groove; 11. Rotating ring; 12. Sealing ring; 13. Movable plate; 14. Round rod; 15. Arc positioning plate. Detailed Implementation

[0024] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example

[0026] like Figures 1 to 8 As shown, an axial capacitor with a sealed structure includes: a housing 1, with sealing cover plates 6 respectively disposed on the top and bottom of the housing 1, the upper sealing cover plate 6 being attached to the top of the housing 1 and the lower sealing cover plate 6 being bolted to the bottom of the housing 1, a capacitor core 8 being disposed inside the housing 1, and lead electrodes 4 being connected to the top and bottom of the capacitor core 8 respectively, and a lead hole 3 matching the lead electrode 4 being opened on the top of the sealing cover plate 6, the end of the lead electrode 4 being away from the capacitor core 8 passing through the lead hole 3 and extending to the outside of the housing 1.

[0027] The capacitor core 8 is covered by an inner shell 9. The top and bottom of the inner shell 9 are respectively connected by bolts to rotating rings 11. The two rotating rings 11 are respectively sleeved in the outer shell 1 near the top and bottom by bearings. The top of the inner shell 9 passes through the upper rotating ring 11 and is connected to the bottom of the upper sealing cover plate 6 by bolts.

[0028] In this embodiment, it is designed to effectively extend and resist, thereby effectively compressing the sealing ring 12, which in turn allows the sealing ring 12 to fit tightly against the capacitor core 8 and the lead electrode 4, thus improving its sealing efficiency.

[0029] The top of the rotating ring 11 has several evenly distributed arc-shaped grooves 10. A round rod 14 is fitted inside the arc-shaped groove 10. The end of the round rod 14 opposite to the sealing cover plate 6 passes through the arc-shaped groove 10 and is connected to a movable plate 13 by bolts. The inner wall of the arc-shaped groove 10 has a limiting groove that matches the movable plate 13. The opposite sides of several movable plates 13 are respectively connected to arc-shaped positioning plates 15 by bolts. A sealing ring 12 is fitted between several arc-shaped positioning plates 15. A sealing ring 5 is fitted over the lead-out electrode 4. The outer wall of the sealing ring 5 is fitted inside the lead-out hole 3. Two sealing rings 12 are respectively fitted at the connection between the two lead-out electrodes 4 and the capacitor core 8. The two sealing rings 12 are arranged symmetrically about the central axis of the capacitor core 8. A fixing ring 2 is fitted around the outer shell 1 near the top. Several evenly distributed fastening screw holes 7 are respectively opened on the top of the sealing cover plate 6 and the fixing ring 2.

[0030] Implementation plan: It is not easy for the sealing ring to detach, thus enabling it to seal effectively and improving its usage efficiency and work efficiency.

[0031] Working principle: When using this technical solution, firstly, rotate the upper sealing cover plate 6 clockwise or counterclockwise. The sealing cover plate 6 drives the two rotating rings 11 to rotate clockwise or counterclockwise through the inner shell 9. The rotating rings 11 drive several movable plates 13 to close or move away through the arc groove 10 and the round rod 14. The several movable plates 13 drive several arc positioning plates 15 to close or move away, so that they can effectively extend and resist, thereby effectively squeezing the sealing ring 12. This allows the sealing ring 12 to fit tightly with the capacitor core 8 and the lead electrode 4, improving its sealing efficiency and making it less likely for the sealing ring to detach. This ensures effective sealing and improves its usage and working efficiency. When completed, the upper sealing cover plate 6 is connected to the fixed ring 2 through the upper fastening screw hole 7, and the lower sealing cover plate 6 is installed through the lower fastening screw hole 7.

[0032] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An axial capacitor with a sealed structure, characterized in that, The device includes an outer casing (1), with sealing covers (6) provided on the top and bottom of the outer casing (1). The upper sealing cover (6) is attached to the top of the outer casing (1), and the lower sealing cover (6) is connected to the bottom of the outer casing (1) by bolts. A capacitor core (8) is provided inside the outer casing (1). Lead-out electrodes (4) are connected to the top and bottom of the capacitor core (8). A lead-out hole (3) matching the lead-out electrode (4) is opened on the top of the sealing cover (6). The end of the lead-out electrode (4) that is far away from the capacitor core (8) passes through the lead-out hole (3) and extends to the outside of the outer casing (1).

2. An axial capacitor with a sealed structure according to claim 1, characterized in that, The capacitor core (8) is fitted with an inner shell (9). The top and bottom of the inner shell (9) are respectively connected by bolts to rotating rings (11). The two rotating rings (11) are respectively sleeved in the outer shell (1) near the top and bottom. The top of the inner shell (9) passes through the upper rotating ring (11) and is connected by bolts to the bottom of the upper sealing cover plate (6).

3. An axial capacitor with a sealed structure according to claim 2, characterized in that, The top of the rotating ring (11) is provided with several evenly distributed arc-shaped grooves (10). A round rod (14) is fitted inside the arc-shaped groove (10). The end of the round rod (14) opposite to the sealing cover plate (6) passes through the arc-shaped groove (10) and is connected to a movable plate (13) by bolts. A limiting groove matching the movable plate (13) is provided on the inner wall of the arc-shaped groove (10).

4. An axial capacitor with a sealed structure according to claim 3, characterized in that, Several movable plates (13) are respectively connected to an arc-shaped positioning plate (15) by bolts on opposite sides, and a sealing ring (12) is sleeved between several arc-shaped positioning plates (15).

5. An axial capacitor with a sealed structure according to claim 4, characterized in that, The lead-out electrode (4) is fitted with a sealing ring (5), and the outer wall of the sealing ring (5) is fitted inside the lead-out hole (3).

6. An axial capacitor with a sealed structure according to claim 5, characterized in that, The two sealing rings (12) are respectively fitted at the connection between the two lead electrodes (4) and the capacitor core (8), and the two sealing rings (12) are arranged symmetrically about the central axis of the capacitor core (8).

7. An axial capacitor with a sealed structure according to claim 6, characterized in that, A fixing ring (2) is fitted around the outer shell (1) near the top. Several evenly distributed fastening screw holes (7) are respectively opened on the top of the sealing cover (6) and the fixing ring (2).

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