CN220895352U - Multifunctional aluminum electrolytic capacitor cover plate and aluminum electrolytic capacitor - Google Patents

Abstract

The utility model discloses a multifunctional aluminum electrolytic capacitor cover plate and an aluminum electrolytic capacitor, comprising a metal cover plate main body and a terminal assembly arranged on the metal cover plate main body; one surface of the metal cover plate main body is provided with a plane, the other surface of the metal cover plate main body is provided with a groove, and the metal cover plate main body is provided with a terminal assembly mounting hole; the terminal assembly comprises an outgoing metal guide pin, an insulating rubber seat and a metal sleeve; the leading-out metal guide pin of the terminal assembly and the plane of the metal cover plate main body are positioned on the same side; or the lead-out metal guide pin of the terminal assembly and the groove of the metal cover plate main body are positioned on the same side. The multifunctional aluminum electrolytic capacitor cover plate and the aluminum electrolytic capacitor are simple in structure and can be applied to various scenes.

Description

Multifunctional aluminum electrolytic capacitor cover plate and aluminum electrolytic capacitor

Technical Field

The utility model belongs to the technical field of capacitors, and particularly relates to a multifunctional aluminum electrolytic capacitor cover plate and an aluminum electrolytic capacitor.

Background

With the continuous improvement of capacitor performance, aluminum electrolytic capacitors have been widely used in consumer electronics, communication products, computers and peripheral products, new energy, automation control, automotive industry, photovoltaic products, high-speed railway and aviation and military equipment, etc. In the technical field of consumer electronics, the application of the aluminum electrolytic capacitor has the characteristics of small volume, large stored electric quantity and high cost performance along with structural transformation and technical progress, and the aluminum electrolytic capacitor is expanded in various emerging fields such as energy-saving lamps, frequency converters, new energy sources and the like, and has wider application range.

At present, an aluminum electrolytic capacitor is generally composed of a core bag formed by winding positive and negative aluminum foils and electrolytic paper, a cylindrical aluminum shell and a sealing cover plate with positive and negative wiring terminals, wherein positive and negative terminal lead-out holes are formed in the cover plate, and positive and negative terminals are arranged on the cover plate through the through holes. Wherein, the cover plate of most aluminum electrolytic capacitors is strictly distinguished into a cover plate front surface and a cover plate back surface, the function of the cover plate is single, and the front surface of the cover plate and the back surface of the cover plate cannot be used interchangeably; specifically, the front of apron is the one side of contact outside, and positive negative pole terminal is drawn forth to the front, and the back of apron is the one side that is close to the condenser core package, and the back is towards the condenser inside after the encapsulation is accomplished to the condenser, is not revealed. However, along with the complex and changeable application scenes, the adaptability requirement on the cover plate of the electrolytic capacitor is higher and higher, and the cover plate for strictly distinguishing the front surface and the back surface cannot be flexibly used for some special scenes.

It is thus seen that there is a need in the art to develop a solution to provide a flexible, versatile aluminum electrolytic capacitor cover plate.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present utility model and is not necessarily prior art to the present application and is not intended to be used as an aid in the evaluation of the novelty and creativity of the present utility model in the event that no clear evidence indicates that such is already disclosed at the date of filing of the present application.

Disclosure of utility model

The utility model aims to provide a multifunctional aluminum electrolytic capacitor cover plate, which solves at least one of the problems in the background technology.

In order to achieve the above object, the technical solution of the embodiment of the present utility model is as follows:

A multifunctional aluminum electrolytic capacitor cover plate comprises a metal cover plate main body and a terminal assembly arranged on the metal cover plate main body; one surface of the metal cover plate main body is provided with a plane, the other surface of the metal cover plate main body is provided with a groove, and the metal cover plate main body is provided with a terminal assembly mounting hole; the terminal assembly comprises an outgoing metal guide pin, an insulating rubber seat and a metal sleeve; the leading-out metal guide pin of the terminal assembly and the plane of the metal cover plate main body are positioned on the same side; or the lead-out metal guide pin of the terminal assembly and the groove of the metal cover plate main body are positioned on the same side.

In some embodiments, the insulating rubber mount is disposed between an outgoing metal lead pin and a metal sleeve welded at the terminal assembly mounting hole.

In some embodiments, the opening edges of the grooves on the groove face of the metal cover body are arranged in an arc shape, thereby forming an inward-inclined arc-shaped opening.

In some embodiments, the groove of the metal cover plate main body is in a long and narrow square shape, and the joint of the bottom surface and the peripheral side surfaces of the groove is in arc transition.

In some embodiments, the metal cover body has a rectangular shape, and the outer surface of the metal cover body is provided with an arc shape at the connection position of each adjacent two sides.

In some embodiments, the depth of the grooves of the groove face is less than the height of the metal sleeve of the terminal assembly.

In some embodiments, the insulating rubber mount of the terminal assembly includes a cylindrical sleeve and a circular base plate having an outer diameter that is larger than the bore diameter of the terminal assembly mounting hole.

In some embodiments, an insulating rubber mount of the terminal assembly is disposed between the lead-out metal lead and the metal sleeve to insulate the lead-out metal lead from the metal sleeve.

In some embodiments, the lead-out metal lead comprises a CP lead, an aluminum stem and a welded base; the insulating rubber seat comprises a cylindrical sleeve and a circular chassis, and a through hole matched with the aluminum stem for leading out the metal guide pin is formed in the center of the insulating rubber seat.

In some embodiments, the metal sleeve is sleeved on the surface of the cylindrical sleeve of the insulating rubber seat, and is cylindrical, the inner diameter of the metal sleeve is matched with the outer diameter of the cylindrical sleeve, and the length of the metal sleeve is greater than that of the cylindrical sleeve.

As another technical scheme of the utility model, an aluminum electrolytic capacitor is provided, which comprises an aluminum shell, a core pack sealed and installed in the aluminum shell, and a multifunctional aluminum electrolytic capacitor cover plate according to any embodiment of the technical scheme; wherein the recess of the cover body faces outwardly to enclose the core envelope within the aluminum shell; or the flat surface of the cover plate main body faces outwards to enclose the core package in the aluminum shell; when the groove of the cover plate main body faces outwards, the surface of the aluminum electrolytic capacitor is concave; and when the plane of the cover plate body is outward, the surface of the aluminum electrolytic capacitor is plane.

The technical scheme of the utility model has the beneficial effects that:

Compared with the prior art, the multifunctional aluminum electrolytic capacitor cover plate and the aluminum electrolytic capacitor are simple in structure and can be applied to various scenes.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view showing a cover plate of a multifunctional aluminum electrolytic capacitor according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a terminal assembly of a coverplate of a multi-functional aluminum electrolytic capacitor in accordance with one embodiment of the present utility model;

FIG. 3 is another angular view of a multifunctional aluminum electrolytic capacitor cover plate in accordance with one embodiment of the present utility model;

FIG. 4 is a partially exploded view of a cover plate of a multi-functional aluminum electrolytic capacitor according to an embodiment of the present utility model;

FIG. 5 is a cutaway illustration of a multifunctional aluminum electrolytic capacitor cover plate in accordance with one embodiment of the present utility model;

Fig. 6 is a schematic view of an aluminum electrolytic capacitor according to another embodiment of the present utility model.

Detailed Description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present utility model more clear and make those skilled in the art better understand the solutions of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for a fixing function or for a circuit communication function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing embodiments of the utility model and to simplify the description by referring to the figures, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In describing embodiments of the present utility model, unless explicitly stated and limited otherwise, the meaning of "plurality" is two or more, and the terms "mounted," "connected," "secured," etc. are to be construed broadly, as for example, they may be fixedly connected, detachably connected, or as a unit; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 5, as an embodiment of the present utility model, a multifunctional aluminum electrolytic capacitor cover plate 300 is provided, and as shown in fig. 1 and 2, the aluminum electrolytic capacitor cover plate 300 of the present utility model includes a metal cover plate body 30, and a terminal assembly 400 disposed on the metal cover plate body 30; wherein, one surface of the metal cover plate main body 30 is provided with a plane, the other surface is provided with a groove 31, and the metal cover plate main body 30 is provided with a terminal assembly mounting hole 310; the terminal assembly 400 comprises a lead-out metal guide pin 40, an insulating rubber seat 41 and a metal sleeve 42; the lead-out metal pins 40 of the terminal assembly 400 are located on the same side as the plane of the metal cover plate body 30 or the lead-out metal pins 40 of the terminal assembly 400 are located on the same side as the grooves 31 of the metal cover plate body 30.

Specifically, the insulating rubber seat 41 is disposed between the lead-out metal pins 40 and the metal sleeve 42, and the metal sleeve 42 is welded to the terminal assembly mounting hole 310, so as to mount and fix the terminal assembly 400 on the metal cover body 30. In some embodiments, the lead-out metal pins 40 protrude and extend out of the plane of the metal cover body 30; in other embodiments, the lead-out metal pins 40 protrude outwardly from the recess surface of the metal cover body 30.

Referring to fig. 3, 4 and 5, the opening edge of the groove 31 on the groove surface of the metal cover body 30 is provided in an arc shape, thereby forming an arc-shaped opening inclined inward; the junction of the bottom surface and the peripheral side surfaces of the groove 31 is provided with an arc transition. In the embodiment of the utility model, the groove 31 of the metal cover body 30 is a rectangular shape. In some embodiments, the metal cover body 30 has a rectangular shape, and the outer surface of the metal cover body 30 is provided with an arc shape at the connection between each two adjacent surfaces.

It should be noted that, in other embodiments, the metal cover body 30 and/or the groove 31 of the metal cover body 30 may be configured in other shapes, and no matter what shape is configured, the metal cover body and the groove should fall within the protection scope of the present invention.

In some embodiments, the depth of the groove 31 of the groove face is less than the height of the metal sleeve 42 of the terminal assembly 400; the outer diameter of the metal sleeve 42 is adapted to the terminal assembly mounting hole 310; the insulating rubber seat 41 of the terminal assembly comprises a cylindrical sleeve 410 and a circular chassis 411, wherein the outer diameter of the circular chassis 411 is larger than the aperture of the terminal assembly mounting hole 310.

In some embodiments, the terminal assembly mounting holes 310 are two for mounting the positive and negative terminal assemblies. The two terminal assembly mounting holes 310 are symmetrically or asymmetrically provided on the metal cap body 30.

Referring to fig. 2 and 5, an insulating rubber seat 41 of the terminal assembly is disposed between the lead-out metal lead 40 and the metal sleeve 42 so as to insulate the lead-out metal lead 40 from the metal sleeve 42; the lead-out metal guide pin 40 comprises a CP lead 401, an aluminum stem 402 and a welding base 403.

In the embodiment of the present utility model, the CP lead 401 from which the metal lead 40 is led out and the aluminum stem 402 are in a circular strip shape, wherein the diameter of the aluminum stem 402 is greater than the diameter of the CP lead 401, and the length of the CP lead 401 is greater than the length of the aluminum stem 402; the welding base 403 is disc-shaped, and is welded to the cell of the aluminum electrolytic capacitor through the welding base 403.

The insulating rubber seat 41 comprises a cylindrical sleeve 410 and a circular chassis 411, a through hole 412 matched with the aluminum stem 402 for leading out the metal guide pin is arranged in the center of the insulating rubber seat 41, and the outer diameter of the aluminum stem 402 is matched with the inner diameter of the through hole 412, so that the aluminum stem 402 can be tightly sleeved in the through hole 412. In some embodiments, the length of the through hole 412 is greater than the length of the aluminum stem 402. In some embodiments, the diameter of the cylindrical sleeve 410 is less than the diameter of the circular chassis 411. The circular chassis 411 of the insulating rubber mount 41 is abutted against the welding base 403 from which the metal lead 40 is led out.

The metal sleeve 42 is sleeved on the surface of the cylindrical sleeve 410 of the insulating rubber seat 41, and corresponds to the cylindrical sleeve 410, the metal sleeve 42 is cylindrical, the inner diameter of the metal sleeve 42 is matched with the outer diameter of the cylindrical sleeve 410, the length of the metal sleeve 42 is greater than that of the cylindrical sleeve 410, the metal sleeve 42 is sleeved on the surface of the cylindrical sleeve 410 to be bunched, one end of the metal sleeve 42 is connected with the circular chassis 411 of the insulating rubber seat 41 in a low mode, and the other end of the metal sleeve 42 is buckled with the cylindrical sleeve 410 of the insulating rubber seat 41 through a curled edge. In some implementations, the metal sleeve 42 is an aluminum tube.

In some embodiments, the welding base 403 of the lead-out metal pin 40 is provided with a circular protruding strip 404 on the upper surface, and an annular groove 405 is formed between the circular protruding strip 404 and the bottom of the aluminum stem; so designed, when the metal sleeve 42 is in a girdling state, the insulating rubber seat 41 is extruded, the circular chassis 411 of the insulating rubber seat 41 is partially extruded and embedded into the annular groove 405, and meanwhile, the circular protruding strip 404 is extruded and embedded into the circular chassis 411 of the insulating rubber seat 41, so that the insulating rubber seat 41 and the lead-out metal guide pin 40 are tightly combined together.

It should be understood that, in some embodiments, the lead-out metal pins 40 may be in the shape of strips with other irregular patterns, and the shapes of the lead-out metal pins are not particularly limited in this embodiment, and any pattern should be included in the protection scope of the present application as long as the pattern does not deviate from the gist of the present application.

Referring to fig. 6, an aluminum electrolytic capacitor 100 according to another embodiment of the present utility model includes an aluminum case 10, a core pack sealed and mounted in the aluminum case 10, and a multifunctional aluminum electrolytic capacitor cover plate 300 according to any of the foregoing embodiments; wherein the groove of the cover plate main body faces outwards to pack the core package into the aluminum shell, or the plane of the cover plate main body faces outwards to pack the core package into the aluminum shell; when the groove of the cover plate main body faces outwards, the surface of the aluminum electrolytic capacitor is concave; and when the plane of the cover plate body is outward, the surface of the aluminum electrolytic capacitor is plane.

It is to be understood that the foregoing is a further detailed description of the present utility model in connection with the specific/preferred embodiments, and that no particular implementation of the present utility model is to be considered limited to such description. It will be apparent to those skilled in the art to which the present utility model pertains that many substitutions and modifications of these described embodiments may be made without departing from the inventive concepts herein, and these substitutions and modifications are intended to be within the scope of this patent. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "preferred embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model.

In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. Although the embodiments of the present utility model and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope as defined by the appended claims.

Furthermore, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. Those of ordinary skill in the art will readily appreciate that the above-described disclosures, procedures, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims (11)

1. A multifunctional aluminum electrolytic capacitor cover plate is characterized in that: the metal cover plate comprises a metal cover plate body and a terminal assembly arranged on the metal cover plate body; one surface of the metal cover plate main body is provided with a plane, the other surface of the metal cover plate main body is provided with a groove, and the metal cover plate main body is provided with a terminal assembly mounting hole; the terminal assembly comprises an outgoing metal guide pin, an insulating rubber seat and a metal sleeve; the leading-out metal guide pin of the terminal assembly and the plane of the metal cover plate main body are positioned on the same side; or the lead-out metal guide pin of the terminal assembly and the groove of the metal cover plate main body are positioned on the same side.

2. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the insulating rubber seat is arranged between the lead-out metal guide pin and the metal sleeve, and the metal sleeve is welded at the terminal assembly mounting hole.

3. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the opening edge of the groove on the groove surface of the metal cover plate main body is arranged to be arc-shaped, so that an inward inclined arc-shaped opening is formed.

4. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the groove of the metal cover plate main body is in a long and narrow square shape, and the joint of the bottom surface of the groove and the side surfaces around is in arc transition.

5. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the metal cover plate main body is rectangular, and the outer surface of the metal cover plate main body is arc-shaped at the joint of every two adjacent surfaces.

6. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the depth of the grooves of the groove face is smaller than the height of the metal sleeve of the terminal assembly.

7. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the insulating rubber seat of the terminal assembly comprises a cylindrical sleeve and a circular chassis, and the outer diameter of the circular chassis is larger than the aperture of the terminal assembly mounting hole.

8. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 1, wherein: the insulating rubber seat of the terminal assembly is arranged between the lead-out metal guide pin and the metal sleeve, so that the lead-out metal guide pin is insulated from the metal sleeve.

9. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 8, wherein: the lead-out metal guide pin comprises a CP lead, an aluminum stem and a welding base; the insulating rubber seat comprises a cylindrical sleeve and a circular chassis, and a through hole matched with the aluminum stem for leading out the metal guide pin is formed in the center of the insulating rubber seat.

10. The multifunctional aluminum electrolytic capacitor cover plate as recited in claim 9, wherein: the metal sleeve is sleeved on the surface of the cylindrical sleeve of the insulating rubber seat and corresponds to the cylindrical sleeve, the metal sleeve is cylindrical, the inner diameter of the metal sleeve is matched with the outer diameter of the cylindrical sleeve, and the length of the metal sleeve is larger than that of the cylindrical sleeve.

11. An aluminum electrolytic capacitor, characterized in that: comprises an aluminum shell, a core bag sealed and installed in the aluminum shell and the multifunctional aluminum electrolytic capacitor cover plate as set forth in any one of claims 1-10; wherein the recess of the cover body faces outwardly to enclose the core envelope within the aluminum shell; or the flat surface of the cover plate main body faces outwards to enclose the core package in the aluminum shell; when the groove of the cover plate main body faces outwards, the surface of the aluminum electrolytic capacitor is concave; and when the plane of the cover plate body is outward, the surface of the aluminum electrolytic capacitor is plane.