Capacitor with waterproof structure

Abstract

The utility model discloses a capacitor with waterproof structure, including upper casing, lower casing and capacitor casing, the outside edge of upper casing is fixed with the fixed ring of the fixed sleeve of bottom end department, the inner chamber of lower casing is equipped with round plate, the top fixedly connected with thread column of round plate, the inner chamber bottom of upper casing is threadedly connected in thread column, the top of thread column is equipped with round groove, the bottom fixedly connected with internal thread pipe of round plate, the bottom fixed plug -in of lower casing has internal thread ring, the bottom end of internal thread pipe runs through internal thread ring, the utility model discloses a capacitor with waterproof structure, when disassembling lower casing and upper casing, only need to rotate internal thread pipe through hexagon nut, and internal thread pipe moves downward under the action of outer thread and internal thread ring, and internal thread pipe drives round plate and thread column to rotate, and thread column rotates to be away from upper casing, and in this way, upper casing and lower casing are disassembled, and the operation is simple and convenient.

Description

Technical Field

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

[0002] A capacitor, or simply capacitor, is a major component of electronic circuits. Capacitors are mainly used for low-voltage power compensation in power distribution facilities such as factories and shopping malls, where they play a role in power factor correction. They can also be used for three-phase filtering of inverter outputs in fields such as frequency converters and photovoltaics.

[0003] Chinese utility model patent application number CN202023037325.7 provides a waterproof capacitor. By setting a waterproof cover and an inner edge of the sleeve, the fixed base is surrounded and protected by the waterproof cover, so that the top of the outer shell can be waterproofed. The inner edge of the sleeve is set around the bottom of the through hole of the waterproof cover, so that the inner edge of the sleeve can engage with the serrated edge after the waterproof cover is installed. The waterproof cover and the insulating sleeve can be effectively connected to achieve a tight fit, preventing external moisture and other substances from entering the internal capacitor. It is suitable for the production and use of waterproof capacitors.

[0004] During the use of the aforementioned equipment, it was found that when staff inspected, repaired, or replaced capacitors, they needed to remove the fixing screws between the insulating sleeve and the top cover, as well as the bolts between the top cover and the outer shell, one by one. After the repair or replacement was completed, they also needed to reinstall them. The structure of this equipment is relatively complex, and the disassembly and installation process is cumbersome, which is not conducive to staff working quickly. Utility Model Content

[0005] The technical problem solved by this utility model is to overcome the defects of the prior art and provide a capacitor with a waterproof structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A capacitor with a waterproof structure includes an upper shell, a lower shell, and a capacitor housing. A retaining ring is fixedly fitted onto the outer edge of the upper shell near its bottom. A circular plate is provided in the inner cavity of the lower shell. A threaded post is fixedly connected to the top of the circular plate. The threaded post is threadedly connected to the bottom of the inner cavity of the upper shell. A circular groove is formed on the top of the threaded post. An internally threaded tube is fixedly connected to the bottom of the circular plate. An internally threaded ring is fixedly inserted into the bottom of the lower shell. The bottom end of the internally threaded tube passes through the internally threaded ring. The internally threaded ring is threadedly connected to the internally threaded tube. A movable plate is provided on the top of the threaded post. A bearing is fixedly inserted into the bottom of the movable plate. A threaded rod is fixedly inserted into the inner cavity of the bearing. The threaded rod is threadedly connected to the inner cavity of the internally threaded tube. An internal hexagonal groove is formed at the bottom end of the threaded rod.

[0008] Preferably, the capacitor housing is movably inserted into the inner cavity of the upper housing, the top of the upper housing has two through holes, and the top of the capacitor housing has two connectors, the tips of which movably pass through adjacent through holes.

[0009] Preferably, the lower housing is movably sleeved on the bottom of the upper housing, a sealing ring is fixedly connected to the bottom of the fixing ring, and the top of the lower housing and the bottom of the sealing ring are in contact with each other.

[0010] Preferably, the inner cavity of the upper housing is provided with an internal thread near the bottom, and the internal thread matches the threaded post.

[0011] Preferably, the outer diameter of the circular plate is larger than the inner diameter of the upper shell, and the top of the circular plate fits into the bottom of the upper shell.

[0012] Preferably, the outer side of the internally threaded tube is provided with an external thread, the external thread is matched with the internally threaded ring, and a hexagonal nut is fixedly sleeved at the bottom end of the internally threaded tube.

[0013] Preferably, the top of the movable plate is in contact with the bottom of the capacitor housing, and the movable plate is matched with the circular groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model provides a capacitor with a waterproof structure. When disassembling the outer shell and the upper shell, simply rotate the internal threaded tube with the hexagonal nut. The internal threaded tube moves downward under the action of the external thread and the internal threaded ring. The internal threaded tube drives the circular plate and the threaded column to rotate. The threaded column rotates away from the upper shell, thereby removing the upper shell and the lower shell. The operation is simple and convenient.

[0016] 2. This utility model discloses a capacitor with a waterproof structure. Through the setting of the sealing ring, it can effectively prevent liquid from seeping into the interior of the upper and lower shells, thereby achieving the purpose of waterproofing. Attached Figure Description

[0017] Figure 1 This is a frontal perspective view of the present invention;

[0018] Figure 2 This is a bottom-view perspective view of the present invention;

[0019] Figure 3 This is a frontal sectional perspective view of the present invention;

[0020] Figure 4 This is a front perspective view of the upper housing of the component of this utility model;

[0021] Figure 5 This is a bottom perspective view of the upper housing of the component of this utility model;

[0022] Figure 6 This is a front perspective view of the lower housing of the component of this utility model;

[0023] Figure 7 This is a bottom perspective view of the lower housing of the component of this utility model;

[0024] Figure 8 This is a front sectional perspective view of the lower housing of the component of this utility model;

[0025] Figure 9 This is a front perspective view of the threaded column component of this utility model;

[0026] Figure 10 This is a front sectional perspective view of the threaded column component of this utility model;

[0027] Figure 11 This is a front perspective view of the movable plate of the component of this utility model;

[0028] Figure 12 This is a bottom perspective view of the movable plate of the component of this utility model;

[0029] Figure 13 This is a front perspective view of the circular plate component of this utility model;

[0030] Figure 14 This is a bottom perspective view of the circular plate component of this utility model.

[0031] The following are the labels in the diagram: 1. Upper housing; 2. Retaining ring; 3. Lower housing; 4. Sealing ring; 5. Capacitor housing; 6. Connector; 7. Through hole; 8. Threaded post; 9. Circular groove; 10. Circular plate; 11. Internally threaded tube; 12. Internally threaded ring; 13. Hexagonal nut; 14. Movable plate; 15. Bearing; 16. Threaded rod; 17. Internal hexagonal groove. Detailed Implementation

[0032] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-14 This utility model provides a technical solution:

[0034] A capacitor with a waterproof structure includes an upper shell 1, a lower shell 3, and a capacitor shell 5. A fixing ring 2 is fixedly fitted on the outer edge of the upper shell 1 near the bottom. The capacitor shell 5 is movably inserted into the inner cavity of the upper shell 1. Two through holes 7 are opened on the top of the upper shell 1. Two connectors 6 are provided on the top of the capacitor shell 5. The top of the connectors 6 movably passes through the adjacent through holes 7. The lower shell 3 is movably fitted on the bottom of the upper shell 1. A sealing ring 4 is fixedly connected to the bottom of the fixing ring 2. The top of the lower shell 3 and the bottom of the sealing ring 4 are in contact with each other. A circular plate 10 is provided in the inner cavity of the lower shell 3. A threaded post 8 is fixedly connected to the top of the circular plate 10. The threaded post 8 is threadedly connected to the bottom of the inner cavity of the upper shell 1. An internal thread is opened near the bottom of the inner cavity of the upper shell 1. The internal thread matches the threaded post 8. The outer diameter of the circular plate 10 is larger than the inner diameter of the upper shell 1. The top of the circular plate 10 and the bottom of the upper shell 1 are in contact with each other.

[0035] The top of the threaded column 8 has a circular groove 9. The bottom of the circular plate 10 is fixedly connected to an internally threaded tube 11. The bottom of the lower housing 3 is fixedly inserted with an internally threaded ring 12. The bottom end of the internally threaded tube 11 passes through the internally threaded ring 12. The internally threaded ring 12 is threadedly connected to the internally threaded tube 11. The top of the threaded column 8 has a movable plate 14. The bottom of the movable plate 14 is fixedly inserted with a bearing 15. The inner cavity of the bearing 15 is fixedly inserted with a threaded rod 16. The threaded rod 16 is threadedly connected to the inner cavity of the internally threaded tube 11. The bottom end of the threaded rod 16 has an internal hexagonal groove 17. The outer side of the internally threaded tube 11 has an external thread. The external thread matches the internally threaded ring 12. The bottom end of the internally threaded tube 11 is fixedly fitted with a hexagonal nut 13. The top of the movable plate 14 fits against the bottom of the capacitor housing 5. The movable plate 14 matches the circular groove 9.

[0036] Working Principle: This utility model discloses a waterproof capacitor. During use, the upper shell 1 is fitted onto the outside of the capacitor shell 5, with two connectors 6 passing through two through holes 7. Then, the lower shell 3 is moved and fitted onto the bottom of the upper shell 1, ensuring that the top of the lower shell 3 is in contact with the bottom of the sealing ring 4. The internal threaded tube 11 is then rotated via the hexagonal nut 13. Under the action of the external thread and the internal threaded ring 12, the internal threaded tube 11 moves upward, causing the circular plate 10 and the threaded post 8 to rotate and move towards... The threaded column 8 is tightened at the bottom of the inner cavity of the upper housing 1 under the action of the internal thread, thereby fixing the lower housing 3 and the upper housing 1. Then, by using an internal hex wrench in conjunction with the internal hex socket 17, the threaded rod 16 is turned. The threaded rod 16 rotates in the inner cavity of the bearing 15. Under the action of the thread, the threaded rod 16 moves upward relative to the internal thread tube 11. The threaded rod 16 drives the movable plate 14 to move upward. The movable plate 14 moves upward until it is in contact with the bottom of the capacitor housing 5, thereby fixing the capacitor housing 5 in the inner cavity of the upper housing 1.

[0037] By using the sealing ring 4, liquid can be effectively prevented from seeping into the interior of the upper housing 1 and the lower housing 3, thus achieving the purpose of waterproofing.

[0038] When disassembling the housing 3 and the upper housing 1, simply rotate the internal threaded tube 11 using the hexagonal nut 13. The internal threaded tube 11 moves downward under the action of the external thread and the internal threaded ring 12. The internal threaded tube 11 drives the circular plate 10 and the threaded column 8 to rotate. The threaded column 8 rotates away from the upper housing 1, thereby removing the upper housing 1 and the lower housing 3. The operation is simple and convenient.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0040] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A capacitor with a waterproof structure, comprising an upper shell (1), a lower shell (3), and a capacitor housing (5), characterized in that: A fixing ring (2) is fixedly sleeved on the outer edge of the upper shell (1) near the bottom. A circular plate (10) is provided in the inner cavity of the lower shell (3). A threaded column (8) is fixedly connected to the top of the circular plate (10). The threaded column (8) is threadedly connected to the bottom of the inner cavity of the upper shell (1). A circular groove (9) is opened on the top of the threaded column (8). An internal threaded tube (11) is fixedly connected to the bottom of the circular plate (10). An internal threaded ring (12) is fixedly inserted into the bottom of the lower shell (3). The bottom end of the internally threaded tube (11) passes through the internally threaded ring (12), the internally threaded ring (12) is threadedly connected to the internally threaded tube (11), the top of the threaded column (8) is provided with a movable plate (14), the bottom of the movable plate (14) is fixedly inserted with a bearing (15), the inner cavity of the bearing (15) is fixedly inserted with a threaded rod (16), the threaded rod (16) is threadedly connected to the inner cavity of the internally threaded tube (11), and the bottom end of the threaded rod (16) is provided with an internal hexagonal groove (17).

2. A capacitor with a waterproof structure according to claim 1, characterized in that: The capacitor housing (5) is movably inserted into the inner cavity of the upper housing (1). The top of the upper housing (1) has two through holes (7). The top of the capacitor housing (5) has two connectors (6). The top of the connectors (6) movably passes through the adjacent through holes (7).

3. A capacitor with a waterproof structure according to claim 1, characterized in that: The lower housing (3) is movably sleeved on the bottom of the upper housing (1), and a sealing ring (4) is fixedly connected to the bottom of the fixing ring (2). The top of the lower housing (3) and the bottom of the sealing ring (4) fit together.

4. A capacitor with a waterproof structure according to claim 1, characterized in that: The inner cavity of the upper housing (1) is provided with an internal thread near the bottom, and the internal thread is matched with the threaded post (8).

5. A capacitor with a waterproof structure according to claim 1, characterized in that: The outer diameter of the circular plate (10) is larger than the inner diameter of the upper shell (1), and the top of the circular plate (10) is in contact with the bottom of the upper shell (1).

6. A capacitor with a waterproof structure according to claim 1, characterized in that: The outer side of the internally threaded tube (11) is provided with an external thread, which is matched with the internally threaded ring (12). The bottom end of the internally threaded tube (11) is fixedly fitted with a hexagonal nut (13).

7. A capacitor with a waterproof structure according to claim 1, characterized in that: The top of the movable plate (14) is in contact with the bottom of the capacitor housing (5), and the movable plate (14) is matched with the circular groove (9).

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