Capacitor resistant to high-humidity environment

Abstract

The high-humidity-environment-resistant capacitor comprises a device shell and a capacitor body, an inner cavity is formed in the device shell, a partition plate is transversely connected to the inner cavity, a protection plate is arranged at the top of the partition plate, a through groove is formed in the top of the device shell, and the surface of the through groove is connected with the inner side surface of the protection plate. A capacitor body is arranged in the protection plate, the top plate is fixed to the surface of the device shell through fastening bolts, a baffle is arranged at the bottom of the partition plate, the bottom of the baffle is connected with the bottom of an inner cavity of the device shell, the baffle and the partition plate divide the inner cavity of the device shell into a first inner cavity, a second inner cavity and a third inner cavity, and a through hole is formed in the center of the bottom of the second inner cavity. A fan shell is arranged at the position of the through hole, a fan is arranged in the fan shell, calcium oxide is arranged at the position of the second inner cavity, the capacitor body can be dehumidified to a certain degree in a mode of circulating with external air, and finally the high-humidity environment resistance of the capacitor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a capacitor resistant to high humidity environments. Background Art

[0002] Two conductors close to each other, with a non-conductive insulating medium in between, form a capacitor. When a voltage is applied between the two plates of a capacitor, the capacitor will store charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one conductive plate to the voltage between the two plates. The basic unit of the capacitance of a capacitor is farad (F). In circuit diagrams, the letter C is usually used to represent a capacitor element.

[0003] Capacitors play an important role in tuning, bypassing, coupling, filtering and other circuits. They are used in the tuning circuit of transistor radios, as well as in the coupling circuit and bypass circuit of color TVs.

[0004] However, when the capacitor of the prior art is in a relatively humid environment, the surface of the capacitor may be relatively moist. In this case, water vapor may enter the interior of the capacitor, thereby affecting the normal operation of the capacitor and eventually causing damage to the capacitor. Utility Model Content

[0005] The purpose of the utility model is to provide a capacitor resistant to high humidity environments to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a capacitor resistant to high humidity environment, comprising a device shell and a capacitor body, wherein an inner cavity is provided inside the device shell, a partition plate is laterally connected to the inner cavity, a protective plate is arranged on the top of the partition plate, the top of the protective plate is connected to the inner cavity of the device shell, a through groove is provided on the top of the device shell, the surface of the through groove is connected to the inner surface of the protective plate, a capacitor body is arranged inside the protective plate, a top plate is arranged on the top of the capacitor body, the size of the top plate matches the outer size of the protective plate, a plurality of connecting columns are arranged on the top of the top plate, the top plate is fixed to the surface of the device shell by fastening bolts, a baffle is arranged on the bottom of the partition plate, the bottom of the baffle is connected to the bottom of the inner cavity of the device shell, the baffle and the partition plate divide the inner cavity of the device shell into a first inner cavity, a second inner cavity and a third inner cavity, a through hole is provided at the bottom center of the second inner cavity, a fan shell is arranged at the through hole, a fan is arranged inside the fan shell, and calcium oxide is arranged at the second inner cavity.

[0007] Preferably, a plurality of heat dissipation openings are arranged on the surface of the protective plate, and a second dustproof net is arranged on the surface of the protective plate.

[0008] Preferably, a first dustproof net is provided on the top of the first inner cavity, and an air inlet is provided on the surface of the device shell, and the air inlet is communicated with the first inner cavity.

[0009] Preferably, a plurality of ventilation holes are provided on the surface of the partition plate.

[0010] Preferably, the first inner cavity is located between the protective plate and the inner cavity of the device shell, the third inner cavity is below the partition plate of the first inner cavity, and the inside of the baffle of the third inner cavity is the second inner cavity.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model discloses a capacitor resistant to high humidity environment. The capacitor body is fixedly installed inside the protective plate of the device housing. The surface of the protective plate is provided with a heat dissipation port. The bottom of the device housing is provided with a fan. The fan ventilates and dries the bottom of the capacitor body.

[0013] The first inner cavity will be filled with air, and the air will enter from the air inlet at the top of the first inner cavity. The bottom of the first inner cavity is the third inner cavity. Calcium oxide is arranged in the third inner cavity. Calcium oxide is a kind of desiccant, which can dehumidify the air entering from the air inlet to a certain extent. Then the surface of the capacitor body will exchange gas with the air here through the heat dissipation port, thereby realizing ventilation and drying, and finally improving the high humidity environment resistance of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] In the figure: 1. device housing; 2. air inlet; 3. first dust screen; 4. top plate; 5. fastening bolts; 6. connecting column; 7. partition plate; 8. fan; 9. fan housing; 10. first inner cavity; 11. second dust screen; 12. protective plate; 13. heat dissipation port; 14. capacitor body; 15. second inner cavity; 16. baffle; 17. third inner cavity; 18. through hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-2 The utility model provides a technical solution: a capacitor resistant to high humidity environment, including a device housing 1 and a capacitor body 14. The device housing 1 has an inner cavity, a partition plate 7 is horizontally connected to the inner cavity, a protective plate 12 is arranged on the top of the partition plate 7, the top of the protective plate 12 is connected to the inner cavity of the device housing 1, a through groove is arranged on the top of the device housing 1, the surface of the through groove is connected to the inner surface of the protective plate 12, a capacitor body 14 is arranged inside the protective plate 12, a top plate 4 is arranged on the top of the capacitor body 14, the size of the top plate 4 matches the outer size of the protective plate 12, a plurality of connecting columns 6 are arranged on the top of the top plate 4, and the top plate 4 It is fixed to the surface of the device housing 1 by tightening bolts 5, and a baffle 16 is provided at the bottom of the partition plate 7. The bottom of the baffle 16 is connected to the bottom of the inner cavity of the device housing 1. The baffle 16 and the partition plate 7 divide the inner cavity of the device housing 1 into a first inner cavity 10, a second inner cavity 15 and a third inner cavity 17. A through hole 18 is opened at the bottom center of the second inner cavity 15, and a fan housing 9 is provided at the through hole 18. A fan 8 is provided inside the fan housing 9. Calcium oxide is provided at the second inner cavity 15. Calcium oxide is a kind of desiccant, which dehumidifies the air entering the first inner cavity 10 through the air inlet 2, which is beneficial to dehumidify the surface portion of the capacitor body 14 to a certain extent.

[0021] Furthermore, a plurality of heat dissipation openings 13 are provided on the surface of the protection plate 12 , and a second dustproof net 11 is provided on the surface of the protection plate 12 .

[0022] Furthermore, a first dustproof net 3 is provided on the top of the first inner cavity 10 , and an air inlet 2 is provided on the surface of the device shell 1 , and the air inlet 2 is communicated with the first inner cavity 10 .

[0023] Specifically, the first dustproof net 11 and the second dustproof net 3 are provided to block dust in the air and prevent the dust from entering the capacitor body 14 and causing certain damage to the capacitor body 14 .

[0024] Furthermore, a plurality of vents are provided on the surface of the partition plate 7 , and the vents are provided to connect the air at the bottom of the capacitor body 14 with the second inner cavity 15 .

[0025] Furthermore, the first inner cavity 10 is located between the protective plate 12 and the inner cavity of the device housing 1 , below the partition plate 7 of the first inner cavity 10 is the third inner cavity 17 , and inside the baffle 16 of the third inner cavity 17 is the second inner cavity 15 .

[0026] To summarize, the capacitor body 14 is fixedly installed inside the protective plate 12 of the device housing 1, a heat dissipation port 13 is provided on the surface of the protective plate 12, and a fan 8 is provided at the bottom of the device housing 1. The setting of the fan 8 will accelerate the air circulation rate of the bottom part of the capacitor body 14, ventilate and dry the bottom of the capacitor body, and avoid moisture at the bottom of the capacitor.

[0027] The first inner cavity 10 is filled with air, and the air will enter from the air inlet 2 at the top of the first inner cavity 10. The bottom of the first inner cavity 10 is the third inner cavity 17. Calcium oxide is provided in the third inner cavity 17. Calcium oxide is a kind of desiccant, which can dehumidify the air entering from the air inlet 2 to a certain extent. Then the surface of the capacitor body 14 will exchange gas with the air here through the heat dissipation port 13, thereby reducing the air humidity on the surface of the capacitor body 14, thereby achieving ventilation and drying, and finally improving the high humidity environment resistance of the utility model.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capacitor resistant to high humidity environment, comprising a device housing (1) and a capacitor body (14), characterized in that: The device housing (1) has an inner cavity, a partition plate (7) is transversely connected to the inner cavity, a protective plate (12) is arranged on the top of the partition plate (7), the top of the protective plate (12) is connected to the inner cavity of the device housing (1), a through groove is arranged on the top of the device housing (1), the surface of the through groove is connected to the inner surface of the protective plate (12), a capacitor body (14) is arranged inside the protective plate (12), a top plate (4) is arranged on the top of the capacitor body (14), the size of the top plate (4) matches the outer size of the protective plate (12), and a plurality of connecting columns (6) are arranged on the top of the top plate (4). ), the top plate (4) is fixed to the surface of the device housing (1) by fastening bolts (5), a baffle (16) is arranged at the bottom of the partition plate (7), the bottom of the baffle (16) is connected to the bottom of the inner cavity of the device housing (1), the baffle (16) and the partition plate (7) divide the inner cavity of the device housing (1) into a first inner cavity (10), a second inner cavity (15) and a third inner cavity (17), a through hole (18) is opened at the bottom center of the second inner cavity (15), a fan housing (9) is arranged at the through hole (18), a fan (8) is arranged inside the fan housing (9), and calcium oxide is arranged at the second inner cavity (15).

2. The capacitor resistant to high humidity environment according to claim 1, characterized in that: The surface of the protective plate (12) is provided with a plurality of heat dissipation openings (13), and the surface of the protective plate (12) is provided with a second dustproof net (11).

3. The capacitor resistant to high humidity environment according to claim 1, characterized in that: A first dustproof net (3) is arranged on the top of the first inner cavity (10), and an air inlet (2) is arranged on the surface of the device housing (1), and the air inlet (2) is connected to the first inner cavity (10).

4. The capacitor resistant to high humidity environment according to claim 1, characterized in that: The surface of the partition plate (7) is provided with a plurality of ventilation holes.

5. The capacitor resistant to high humidity environment according to claim 1, characterized in that: The first inner cavity (10) is located between the protective plate (12) and the inner cavity of the device housing (1); below the partition plate (7) of the first inner cavity (10) is the third inner cavity (17); inside the baffle plate (16) of the third inner cavity (17) is the second inner cavity (15).

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