CN211879247U - Quick-connecting large electrolytic capacitor - Google Patents

Abstract

The utility model discloses a connect large-scale electrolytic capacitor of formula soon, including casing and the core package of setting in the casing, the core package draws foil strip and negative pole through the positive pole and draws foil strip to communicate with each other with corresponding lower extreme terminal respectively, and two lower extreme terminals are all fixed on the apron of setting on the casing, are equipped with the upper end terminal that is symmetrical structure setting on the lower extreme terminal, and upper end terminal and lower extreme terminal configuration define the spacing subassembly of axial and the spacing subassembly of restriction upper end terminal circumferential direction that are used for restricting upper end terminal axial displacement. The beneficial effects of the utility model are mainly embodied in that: insert the upper end terminal to the lower extreme terminal when installing electrolytic capacitor on, peg graft the bolt to the rhombus inslot that both formed again, can realize quick installation to satisfy electrolytic capacitor's under the different situation special installation demand, simultaneously, the upper end terminal can be bent into corresponding angle according to actual demand and can not damage electrolytic capacitor, and easy operation is convenient, greatly improves work efficiency.

Description

Quick-connecting large electrolytic capacitor

Technical Field

The utility model relates to an electrolytic capacitor technical field particularly, especially relates to a large-scale electrolytic capacitor of formula that connects soon.

Background

The electrolytic capacitor is an irreplaceable basic element in various electronic products and is widely applied to the fields of electric automobiles, industrial energy-saving products, photovoltaic inverters and the like. In the recent years, the rapid development of electronic component integration and high-speed processing technology makes the global market put higher demands on the performance of the capacitor products. The development trend of electrolytic capacitors is long service life, high temperature resistance and high-frequency ripple current resistance.

The aluminum electrolytic capacitor comprises an aluminum shell, an element and a pin, wherein the element is packaged in a cavity of the aluminum shell, and the pin is connected with the element and led to the outside. The element comprises an anode aluminum foil, a cathode aluminum foil and electrolytic paper positioned between the anode aluminum foil and the cathode aluminum foil, wherein the anode aluminum foil and the cathode aluminum foil are respectively connected with a corresponding anode connecting terminal and a corresponding cathode connecting terminal, and then the anode connecting terminal and the cathode connecting terminal are connected with an electrical element. However, in some cases, the terminal needs to be bent at a certain angle when the electrolytic capacitor is mounted, and the conventional terminal is inconvenient in that the bending angle is difficult to control and the terminal is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a quick-connection large electrolytic capacitor.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a large-scale electrolytic capacitor of formula of connecing soon, is in including casing and setting core package in the casing, the core package draws the foil strip through positive pole and negative pole and communicates with each other with corresponding lower extreme terminal respectively, two the lower extreme terminal is all fixed and is set up on the apron on the casing, be equipped with the upper end terminal that is symmetrical structure setting on the lower extreme terminal, upper end terminal and lower extreme terminal configuration are defined to have and are used for the restriction the spacing subassembly of upper end terminal axial displacement's axial and restriction the spacing subassembly of upper end terminal circumferential direction.

Preferably, the circumferential limiting component at least comprises a semi-cylindrical block which is arranged on the lower end terminal and is integrally formed with the lower end terminal, and a semi-annular groove is formed in the outer circumferential surface of the semi-cylindrical block; the lower end terminal is further provided with a limiting block which is integrally formed with the lower end terminal and is semi-cylindrical, the limiting block is matched with the outline of the groove, a clamping groove is further formed between the limiting block and the semi-cylindrical block, and the outline of the clamping groove is matched with the outline of the inserting end of the semi-cylindrical block.

Preferably, the axial limiting component comprises a triangular groove arranged on the inner wall of the semi-cylindrical block, the triangular groove on the upper end terminal and the triangular groove on the lower end terminal are matched with each other to form a diamond-shaped groove, and a plug pin matched with the diamond-shaped groove can be plugged into the diamond-shaped groove to limit the axial movement of the upper end terminal.

Preferably, an adhesive rubber pad is arranged between the shell and the cover plate, the upper end face of the adhesive rubber pad is connected with the shell, and the lower end face of the adhesive rubber pad is connected with the cover plate.

Preferably, the middle part of the shell is provided with a circle of binding groove, the binding groove is of an inwards concave arc structure, and the top point of the arc surface of the binding groove is always abutted against and kept in contact with the core bag.

Preferably, the inner surface of the bottom of the shell is provided with an explosion-proof groove.

The beneficial effects of the utility model are mainly embodied in that:

1. insert the upper end terminal to the lower extreme terminal when installing electrolytic capacitor on, peg graft the bolt to the rhombus inslot that both formed again, can realize quick installation to satisfy electrolytic capacitor's under the different situation special installation demand, simultaneously, the upper end terminal can be bent into corresponding angle according to actual demand and can not damage electrolytic capacitor, and easy operation is convenient, greatly improves work efficiency.

2. The upper end terminal and the lower end terminal are of symmetrical structures, the upper end terminal and the lower end terminal can be manufactured by only one die, production cost is greatly reduced, and the die is suitable for wide use.

3. The sealing performance that the stickness cushion further strengthened has improved electrolytic capacitor's sealed effect, reduces the weeping risk of electrolyte.

4. And a binding groove is additionally arranged in the middle of the shell to fix the core cladding in the radial direction, so that the anti-seismic performance of the capacitor is improved.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the structure of the utility model is shown schematically;

FIG. 2: an enlarged view of portion a in fig. 1;

FIG. 3: cross-sectional view B-B in fig. 1.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 3, the utility model discloses a large-scale electrolytic capacitor of formula of connecing soon, be in including casing 1 and setting core package 2 in the casing 1, core package 2 draws foil strip and negative pole to draw foil strip to communicate with each other with corresponding lower extreme terminal 21 respectively through the positive pole, two lower extreme terminal 21 all fixes and sets up on the apron 3 on the casing 1, be equipped with on the apron 4 with lower extreme terminal matched with joining in marriage the hole, join in marriage the hole and be used for making lower extreme terminal pass through this hole and with the positive pole draw foil strip the negative pole draw foil strip to connect.

The design points of the utility model lie in: the lower end terminal 21 is provided with an upper end terminal 4 which is arranged in a symmetrical structure, and the upper end terminal 4 and the lower end terminal 21 are configured and defined with an axial limiting component 5 for limiting the axial movement of the upper end terminal 4 and a circumferential limiting component 6 for limiting the circumferential rotation of the upper end terminal 4.

The structure of the upper end terminal 4 and the lower end terminal 21 is specifically described below:

the circumferential limiting component 6 at least comprises a semi-cylindrical block 61 which is arranged on the lower end terminal 21 and is integrally formed with the lower end terminal, and a semi-annular groove 62 is formed in the outer circumferential surface of the semi-cylindrical block 61; the lower end terminal 21 is further provided with a limiting block 63 which is integrally formed with the lower end terminal and is semi-cylindrical, the limiting block 63 is matched with the outer contour of the groove 62, a clamping groove 64 is further arranged between the limiting block 63 and the semi-cylindrical block 61, and the outer contour of the clamping groove 64 is matched with the outer contour of the inserting end 611 of the semi-cylindrical block 61.

The axial limiting component 5 comprises a triangular groove 51 arranged on the inner wall 612 of the semi-cylindrical block 61, the triangular groove 51 on the upper terminal 4 and the triangular groove 51 on the lower terminal 21 are matched with each other to form a diamond-shaped groove, and a plug pin 52 matched with the diamond-shaped groove can be inserted into the diamond-shaped groove to limit the axial movement of the upper terminal 4.

Above-mentioned structural design is exquisite, only needs to plug in the upper end terminal to the lower extreme terminal when installing electrolytic capacitor, pegs graft the bolt to the rhombus inslot that both formed again, can realize quick installation to satisfy electrolytic capacitor's under the different conditions special installation demand, simultaneously, the upper end terminal can be bent into corresponding angle and can not damage electrolytic capacitor according to actual demand, and easy operation is convenient, greatly improves work efficiency. In addition, the upper end terminal and the lower end terminal are of symmetrical structures, the upper end terminal and the lower end terminal can be manufactured by only one die, production cost is greatly reduced, and the terminal is suitable for wide use.

In this embodiment, be equipped with stickness cushion 7 between casing 1 and the apron 3, the up end of stickness cushion 7 with casing 1 is connected, its lower terminal surface with apron 3 is connected. The sealing performance that the setting of stickness cushion further strengthened has improved electrolytic capacitor's sealed effect, reduces the weeping risk of electrolyte.

The middle part of the shell 1 is also provided with a circle of binding groove 8, the binding groove 8 is of an inwards concave arc structure, and the top point of the arc surface of the binding groove 8 is always abutted to and kept in contact with the core bag 2. And a binding groove is additionally arranged in the middle of the shell to fix the core cladding in the radial direction, so that the anti-seismic performance of the capacitor is improved.

The bottom inner surface of the shell 1 is provided with an explosion-proof groove, the thickness of the explosion-proof groove can be reduced due to the arrangement of the explosion-proof groove, so that the pressure born by the explosion-proof groove is reduced, when the electrolytic capacitor bursts, high-pressure gas generated by the electrolytic capacitor is directly opened from the weakest position of the explosion-proof groove and then sprayed out, and finally the problem of a series of potential safety hazards caused by irregular burst is solved.

In addition, the explosion-proof groove is a plurality of, and the explosion-proof groove can be any shape, such as an arc-shaped groove or a groove with a triangular cross section. The first ends of the explosion-proof grooves are connected to the same point, the arrangement can realize that high-pressure gas generated when the capacitor electrolyzer explodes is sprayed out along a specified direction, and the depth of the explosion-proof grooves is preferably 0.05 mm. The first end of each explosion-proof groove is positioned at the center of the bottom of the shell 1. The included angle between two adjacent explosion-proof grooves is the same, and the arrangement of the included angle enables the explosion-proof grooves to be uniformly distributed, so that high-pressure gas generated during explosion of the electrolytic capacitor can be sprayed out from the center of the bottom of the shell more easily.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (6)

1. Large-scale electrolytic capacitor of formula of connecing soon, be in including casing (1) and setting core package (2) in casing (1), core package (2) are led foil strip and negative pole through anodal and are led foil strip and communicate with each other with corresponding lower extreme terminal (21) respectively, two lower extreme terminal (21) are all fixed and are set up on apron (3) on casing (1), its characterized in that: the terminal structure is characterized in that an upper end terminal (4) which is of a symmetrical structure is arranged on the lower end terminal (21), and an axial limiting component (5) which is used for limiting the axial movement of the upper end terminal (4) and a circumferential limiting component (6) which is used for limiting the circumferential rotation of the upper end terminal (4) are defined in the configuration of the upper end terminal (4) and the lower end terminal (21).

2. A large-sized quick-connect electrolytic capacitor according to claim 1, characterized in that: the circumferential limiting assembly (6) at least comprises a semi-cylindrical block (61) which is arranged on the lower end terminal (21) and is integrally formed with the lower end terminal, and a semi-annular groove (62) is formed in the outer circumferential surface of the semi-cylindrical block (61); the lower end terminal (21) is further provided with a limiting block (63) which is integrally formed with the lower end terminal and is semi-cylindrical, the limiting block (63) is matched with the outer contour of the groove (62), a clamping groove (64) is further arranged between the limiting block (63) and the semi-cylindrical block (61), and the outer contour of the clamping groove (64) is matched with the outer contour of the inserting end (611) of the semi-cylindrical block (61).

3. A large-sized quick-connect electrolytic capacitor according to claim 2, characterized in that: the axial limiting assembly (5) comprises a triangular groove (51) arranged on the inner wall (612) of the semi-cylindrical block (61), the triangular groove (51) on the upper end terminal (4) and the triangular groove (51) on the lower end terminal (21) are matched with each other to form a diamond-shaped groove, and a plug pin (52) matched with the diamond-shaped groove can be plugged into the diamond-shaped groove to limit the axial movement of the upper end terminal (4).

4. A large-sized quick-connect electrolytic capacitor according to claim 3, characterized in that: be equipped with stickness cushion (7) between casing (1) and apron (3), the up end of stickness cushion (7) with casing (1) is connected, its lower terminal surface with apron (3) are connected.

5. A large-sized quick-connect electrolytic capacitor according to claim 3, characterized in that: the middle part of the shell (1) is provided with a circle of binding groove (8), the binding groove (8) is of an inwards concave arc-shaped structure, and the top point of the arc surface of the binding groove (8) is always abutted to and kept in contact with the core bag (2).

6. A large-sized quick-connect electrolytic capacitor according to claim 3, characterized in that: the bottom inner surface of the shell (1) is provided with an explosion-proof groove.

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