CN214588461U

CN214588461U - High-temperature-resistant and moisture-proof capacitor

Info

Publication number: CN214588461U
Application number: CN202120314244.2U
Authority: CN
Inventors: 李文华; 余艳; 刘万锦; 蒋紫秋
Original assignee: Guangzhou Chinsan Electronic Co ltd
Current assignee: Guangzhou Chinsan Electronic Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-02
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a moisture-proof condenser of high temperature resistant, including hollow structure and opening casing up, the cap is installed to the opening part of casing, the inward flange of casing opening part is equipped with first calorie of strip, the inward flange of cap is equipped with the second calorie of strip, form the draw-in groove that supplies first calorie of strip joint between the edge of second calorie of strip and cap, the inside of casing is equipped with electric capacity core package, the filling opening has been seted up at the middle part of cap, electric capacity core package, form a packing cavity between casing and the cap, the filling opening is linked together with the packing cavity, it has the moisture-proof filler of high temperature resistant to fill the cavity intussuseption, install the electrode post on the cap, the electrode post is connected with the electric capacity core package. By adopting the structure, the connection sealing performance of the shell and the shell cover is enhanced, so that the waterproof performance of the capacitor is improved, and the moisture resistance is improved; the high-temperature-resistant and moisture-resistant filler is filled into the filling cavity through the filling port, so that the high-temperature-resistant and moisture-resistant filler can completely surround the capacitor core package, and the high-temperature-resistant and moisture-resistant performance of the capacitor is further improved.

Description

High-temperature-resistant and moisture-proof capacitor

Technical Field

The utility model relates to a condenser technical field, concretely relates to moisture-proof condenser of high temperature resistant.

Background

The capacitor product is very widely applied to equipment in various industries, along with the continuous improvement of science and technology, the equipment technology is continuously improved, and especially the requirement on the use environment of the capacitor is higher and higher when the capacitor product is used on a large scale in the prior power electronic device. At present, common epoxy resin adopted by most capacitors is used as a potting material for filling or encapsulating the capacitors, the capacitors are influenced by weather, and under the condition of large temperature difference between the environment temperature in winter and summer, the capacitors can cause separation between a shell and the potting material due to expansion with heat and contraction with cold, so that the safe and stable operation of the capacitors is greatly influenced. Meanwhile, when the capacitor operates in a high-humidity environment, moisture can permeate into the capacitor, the insulating property of the capacitor is damaged, and the service life of the capacitor is greatly shortened. The invention aims to overcome the defects in the prior art, and provides a high-temperature-resistant and moisture-resistant capacitor through the optimized design of a capacitor structure, so that the practical service life of the capacitor is prolonged.

SUMMERY OF THE UTILITY MODEL

To solve the above problems, the present invention provides a high temperature resistant and moisture resistant capacitor for overcoming the above problems.

A high temperature resistant and moisture resistant capacitor comprises a shell with a hollow structure and an upward opening; a shell cover is arranged at the opening of the shell; a first clamping strip is arranged on the inner edge of the opening of the shell; the inner edge of the shell cover is provided with a second clamping strip; a clamping groove for clamping the first clamping strip is formed between the second clamping strip and the edge of the shell cover; a capacitor core package is arranged inside the shell; a filling port is formed in the middle of the shell cover; a filling cavity is formed among the capacitor core package, the shell and the shell cover; the filling port is communicated with the filling cavity; the filling cavity is filled with high-temperature-resistant and moisture-resistant filler; the shell cover is provided with an electrode column; the electrode column is connected with the capacitor core package.

Preferably, the shell cover is provided with a mounting bolt; the electrode column is embedded on the shell cover through a mounting bolt.

As a preferred scheme, one end of the electrode column, which extends into the filling cavity, is provided with a conducting ring; the conducting ring is electrically connected with the capacitor core package through a connecting copper sheet.

As a preferred scheme, the outer surface of the shell cover is provided with a groove; a reinforcing strip is arranged in the groove; the reinforcing strip extends along the filling opening to the edge of the housing cover.

Preferably, the number of the reinforcing strips is 2-6

As a preferred scheme, the shell cover is provided with an explosion-proof hole; and an explosion-proof valve is embedded in the explosion-proof hole.

As a preferred scheme, the shell cover is arranged in a circular shape; the filling port is arranged at the circle center of the shell cover.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an inward flange at the casing opening part is equipped with first card strip, is equipped with the second card strip at the inward flange of cap, forms the draw-in groove that supplies the first card strip joint between the edge of second card strip and cap, adopts this structure to make the connection leakproofness of casing and cap strengthen, and then promoted the waterproof performance of this condenser, promoted the moisture-proof ability;

2. the high-temperature-resistant and moisture-resistant filler is filled into the filling cavity through the filling port, and the gas in the filling cavity can be effectively discharged by matching with the explosion-proof valve, so that the cavitation phenomenon is avoided, the high-temperature-resistant and moisture-resistant filler can be ensured to completely surround the capacitor core package, and the high-temperature-resistant and moisture-resistant performance of the capacitor is further improved; meanwhile, the explosion-proof valve can discharge high-pressure gas in time under the condition that the internal pressure is increased due to the rise of the internal temperature, so that the direct damage of the capacitor is avoided, and the service life of the capacitor is prolonged;

3. the conducting ring arranged on the electrode column is matched with the mounting bolt, so that the lead on the surface of the electrode column can be effectively prevented from falling off;

4. the structural strength of the capacitor can be enhanced by arranging the reinforcing bar on the shell cover, and the shell cover can be effectively prevented from bursting and being damaged due to overlarge internal pressure at high temperature.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a cross-sectional view of the cross-section a-a of fig. 1 according to the present invention.

In the figure: 1-a shell; 2-a shell cover; 3-capacitor core package; 4-high temperature resistant moisture resistant filler; 5-electrode column; 6, mounting a bolt; 7-a conductive ring; 8-a filling port; 9-connecting copper sheets; 10-a groove; 11-a first card strip; 12-a second card strip; 13-a reinforcing strip; 14-explosion-proof valve.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper (top)", "lower (bottom)", "inner", "outer", "between", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the present invention provides a high temperature and humidity resistant capacitor, which includes a hollow housing 1 with an upward opening; a shell cover 2 is arranged at an opening of the shell 1; a first clamping strip 11 is arranged on the inner edge of the opening of the shell 1; the inner edge of the shell cover 2 is provided with a second clamping strip 12; a clamping groove for clamping the first clamping strip 11 is formed between the second clamping strip 12 and the edge of the shell cover 2; a capacitor core package 3 is arranged in the shell 1; the middle part of the shell cover 2 is provided with a filling port 8; a filling cavity is formed among the capacitor core package 3, the shell 1 and the shell cover 2; the filling port 8 is communicated with the filling cavity; the filling cavity is filled with high-temperature resistant and moisture resistant filler 4; the shell cover 2 is provided with an electrode pole 5; the electrode column 5 is connected with the capacitor core package 3; the utility model discloses an inner edge at casing 1 opening part is equipped with first card strip 11, is equipped with second card strip 12 at the inner edge of cap 2, forms the draw-in groove that supplies first card strip 11 joint between the edge of second card strip 12 and cap 2, adopts this structure to make the connection leakproofness of casing 1 and cap 2 strengthen, and then has promoted the waterproof performance of this condenser, promotes the moisture-proof ability; the high-temperature-resistant and moisture-resistant filler 4 is filled into the filling cavity through the filling port 8, and meanwhile, the gas in the filling cavity can be effectively discharged by matching with the explosion-proof valve 14, so that the phenomenon of cavitation is avoided, the high-temperature-resistant and moisture-resistant filler 4 can be ensured to completely surround the capacitor core package 3, and the high-temperature-resistant and moisture-resistant performance of the capacitor is further improved.

In some examples of the present invention, the housing cover 2 is provided with mounting bolts 6; the electrode column 5 is embedded on the shell cover 2 through a mounting bolt 6; one end of the electrode column 5, which extends into the filling cavity, is provided with a conducting ring 7; the conducting ring 7 is electrically connected with the capacitor core package 3 through a connecting copper sheet 9; through the cooperation of the conducting ring 7 arranged on the electrode column 5 and the mounting bolt 6, the lead on the surface of the electrode column 5 can be effectively prevented from falling off.

In some examples of the invention, the outer surface of the cover 2 is provided with a groove 10; a reinforcing strip 13 is arranged in the groove 10; the reinforcing strip 13 extends along the filling opening 8 to the edge of the cover 2; the number of the reinforcing strips 13 is preferably 4; the structural strength of the capacitor can be enhanced by arranging the reinforcing strip 13 on the shell cover 2, and the shell cover 2 can be effectively prevented from bursting and being damaged due to overlarge internal pressure at high temperature.

In some examples of the present invention, the housing cover 2 is provided with an explosion-proof hole; an explosion-proof valve 14 is embedded in the explosion-proof hole; the explosion-proof valve 14 can discharge high-pressure gas in time under the condition that the internal pressure is increased due to the increase of the internal temperature, so that the direct damage of the capacitor is avoided, and the service life of the capacitor is prolonged.

In some examples of the invention, the housing cover 2 is circular in configuration; the filling port 8 is arranged at the center of the shell cover 2.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high temperature resistant moisture-proof capacitor is characterized in that: the shell comprises a hollow structure and an upward opening; a shell cover is arranged at the opening of the shell; a first clamping strip is arranged on the inner edge of the opening of the shell; the inner edge of the shell cover is provided with a second clamping strip; a clamping groove for clamping the first clamping strip is formed between the second clamping strip and the edge of the shell cover; a capacitor core package is arranged inside the shell; a filling port is formed in the middle of the shell cover; a filling cavity is formed among the capacitor core package, the shell and the shell cover; the filling port is communicated with the filling cavity; the filling cavity is filled with high-temperature-resistant and moisture-resistant filler; the shell cover is provided with an electrode column; the electrode column is connected with the capacitor core package.

2. The high temperature and humidity resistant capacitor of claim 1 wherein said housing cover has mounting bolts; the electrode column is embedded on the shell cover through a mounting bolt.

3. The high temperature and humidity resistant capacitor of claim 2 wherein said electrode posts have conductive rings at the ends extending into said filled cavities; the conducting ring is electrically connected with the capacitor core package through a connecting copper sheet.

4. The high temperature and humidity resistant capacitor of claim 3 wherein said housing cover has a recess formed in an outer surface thereof; a reinforcing strip is arranged in the groove; the reinforcing strip extends along the filling opening to the edge of the housing cover.

5. The high temperature and humidity resistant capacitor of claim 4 wherein the number of said reinforcing strips is 2-6.

6. The high temperature and humidity resistant capacitor of claim 5 wherein said housing cover has an explosion proof hole; and an explosion-proof valve is embedded in the explosion-proof hole.

7. The high temperature and humidity resistant capacitor of claim 6 wherein said housing cover is circular in shape; the filling port is arranged at the circle center of the shell cover.