CN218939452U

CN218939452U - Aluminum electrolytic capacitor cover plate assembly

Info

Publication number: CN218939452U
Application number: CN202222730039.1U
Authority: CN
Inventors: 尹志华; 李良; 尹超
Original assignee: Shenzhen Jianghao Electron Co ltd
Current assignee: Shenzhen Jianghao Electron Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-28
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses an aluminum electrolytic capacitor cover plate assembly, which comprises a rubber cover plate and a terminal assembly arranged on the rubber cover plate; the upper surface of the rubber cover plate is provided with a lug protruding out of the upper surface of the rubber cover plate; the rubber cover plate is also provided with small holes penetrating through the upper surface and the lower surface of the rubber cover plate; the cover plate is also provided with an annular groove for being squeezed and clamped with an aluminum shell of the aluminum electrolytic capacitor; the terminal assembly comprises a leading-out guide pin, wherein the leading-out guide pin penetrates through a small hole in the rubber cover plate and is extruded and fixed through rubber elasticity of the rubber cover plate. The cover plate component of the aluminum electrolytic capacitor can realize the common packaging mode of various pin aluminum electrolytic capacitors, thereby improving the production efficiency and reducing the cost.

Description

Aluminum electrolytic capacitor cover plate assembly

Technical Field

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

Background

With the continuous improvement of capacitor performance, 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 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 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, the electrolytic capacitor has quite complete specification types, and the installation and fixation modes of the electrolytic capacitor are determined according to the capacity and the application of the electrolytic capacitor, and the installation and fixation modes comprise a patch type, a lead wire plug-in type, a soldering lug plug-in type, a screw installation type and the like, and different types of products in the product series need to be designed into corresponding packaging modes, so that some packages may be repeatedly overlapped, for example: the lead pin lead type package with partial specification and size can also adopt soldering lug type package, and the performances of the two products obtained by the two types of package are basically the same, and the difference is that the lead capacitor electrode belongs to a positive and negative terminal which is led out rigidly without transition, and the soldering lug capacitor electrode is led out flexibly to be led out to be a positive and negative terminal, and the vibration resistance is better.

It can be seen that the above prior art design of the overlapped packaging mode will result in an increase of the investment of the production cost, and finally, an increase of the cost of the product.

Therefore, in order to solve the above-mentioned problems in the prior art, it is necessary to develop a solution to realize the sharing of the packaging method, thereby reducing the cost and improving the production efficiency.

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 to evaluate the novelty and creativity of the present application in the event that no clear evidence indicates that such is already disclosed at the filing date of the present application.

Disclosure of Invention

The utility model aims to provide an aluminum electrolytic capacitor cover plate assembly, which solves at least one of the problems in the background art.

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

an aluminum electrolytic capacitor cover plate assembly comprises a rubber cover plate and a terminal assembly arranged on the rubber cover plate; the upper surface of the rubber cover plate is provided with a lug protruding out of the upper surface of the rubber cover plate; the rubber cover plate is also provided with small holes penetrating through the upper surface and the lower surface of the rubber cover plate; the cover plate is also provided with an annular groove for being squeezed and clamped with an aluminum shell of the aluminum electrolytic capacitor; the terminal assembly comprises a leading-out guide pin, wherein the leading-out guide pin penetrates through a small hole in the rubber cover plate and is extruded and fixed through rubber elasticity of the rubber cover plate.

In some embodiments, the edges of the protrusions on the rubber cover plate are arranged in an arc shape, and the small holes are arranged on two sides of the protrusions.

In some embodiments, the number of the three protrusions on the rubber cover plate is three, one of the protrusions is semicircular, the other two protrusions are fan-shaped, a T-shaped groove is formed between the three protrusions, and the small hole is arranged in the T-shaped groove.

In some embodiments, the arcuate edges of the three bumps are on the same circle.

In some embodiments, the four protrusions on the rubber cover plate are in a fan-shaped structure, and cross-shaped grooves are formed between the protrusions of the four fan-shaped structures.

In some embodiments, the apertures are four in total, and the four apertures are arranged in a symmetrical or asymmetrical manner on the cross-shaped slot.

In some embodiments, the exit lead is elongate; wherein, one end of the leading-out guide needle is of a slender column shape, and the other end is of a flat tongue shape.

In some embodiments, a drum mount is provided in the middle of the lead-out lead.

In some embodiments, the terminal assembly further comprises a pair of rivet pins, wherein the rivet pins are short and small, and one end of the rivet pins is in a short and thin column shape, and the other end of the rivet pins is designed into a flat head rivet shape.

In some embodiments, a drum-type mounting portion is provided in the middle of the rivet guide pin.

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

compared with the prior art, the cover plate component of the aluminum electrolytic capacitor can realize the common packaging mode of various pin aluminum electrolytic capacitors, thereby improving the production efficiency and reducing the cost.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

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 illustrating a cover plate assembly of an aluminum electrolytic capacitor according to an embodiment of the present utility model;

FIG. 2 is a cover plate structural view showing an aluminum electrolytic capacitor cover plate assembly according to an embodiment of the present utility model;

FIG. 3 is another cover plate structure illustration of an aluminum electrolytic capacitor cover plate assembly in accordance with one embodiment of the present utility model;

FIG. 4 is a diagram of the structure of a lead pin of an aluminum electrolytic capacitor cover plate assembly according to one embodiment of the utility model;

FIG. 5 is a schematic view of a cover plate assembly of an aluminum electrolytic capacitor according to another embodiment of the present utility model;

FIG. 6 is a cover plate structural view showing a cover plate assembly of an aluminum electrolytic capacitor according to another embodiment of the present utility model;

FIG. 7 is a diagram of the structure of a lead pin of an aluminum electrolytic capacitor cover plate assembly according to another embodiment of the present utility model;

fig. 8 is a schematic diagram 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 6, as an embodiment of the present utility model, there is provided an aluminum electrolytic capacitor cap plate assembly 100 including a rubber cap plate 10, and a terminal assembly mounted on the rubber cap plate 10; wherein, the upper surface of the rubber cover plate 10 is provided with a protruding block 101 protruding from the upper surface of the rubber cover plate 10; the rubber cover plate 10 is also provided with small holes 102 penetrating through the upper surface and the lower surface of the rubber cover plate 10; the cover plate 10 is also provided with an annular groove 103 for being squeezed and clamped with an aluminum shell of the aluminum electrolytic capacitor when the aluminum shell is in girdling; the terminal assembly comprises a leading-out pin 20, wherein the leading-out pin 20 passes through a small hole 102 on the rubber cover plate 10 and is extruded and fixed through the rubber elasticity of the rubber cover plate 10.

In some embodiments, the edges of the protrusions 101 on the rubber cover 10 are arranged in an arc shape, and the small holes 102 are arranged at two sides of the protrusions 101.

Referring to fig. 3, in some embodiments, three protrusions 101 are provided on the rubber cover 10, one of the protrusions is semicircular, the other two protrusions are fan-shaped, a T-shaped slot is formed between the three protrusions, and the small hole 102 is disposed in the T-shaped slot. In some implementations, the arcuate edges of the three bumps are on the same circle.

Referring to fig. 5 and 6, in some embodiments, the number of the protrusions 101 on the rubber cover 10 is four, the four protrusions are respectively in a fan-shaped structure, and a cross-shaped groove 104 is formed between the protrusions of the four fan-shaped structures. The number of the small holes is four, and the four small holes are symmetrically or asymmetrically distributed on the cross-shaped groove 104.

Referring to fig. 1-7, the number of the small holes 102 corresponds to two of the two leading-out pins 20, and the two leading-out pins 20 have the same structure; referring to fig. 4, the lead-out pin 20 is elongated, wherein one end of the lead-out pin 20 is elongated and cylindrical, and the other end is flat and tongue-shaped, a drum-shaped mounting portion 201 is provided in the middle of the lead-out pin 20, and the lead-out pin is fixed to the rubber cover plate by pressing the small hole 102 on the rubber cover plate through the drum-shaped mounting portion 201 and pressing the drum-shaped mounting portion by the rubber elasticity of the rubber cover plate.

In some implementations, referring to fig. 5 and 7, the terminal assembly further includes a pair of lead-out pins 20 and a pair of rivet pins 21, wherein the rivet pins 21 are short and small, one end of each rivet pin is in a shape of a short and thin column, the other end of each rivet pin is designed as a flat rivet, and a drum-shaped mounting part is arranged in the middle of each rivet pin 21. Specifically, the elongated cylindrical end of the lead-out pin 20 is welded with CP wire, while the flat tongue-shaped end is inserted into the capacitor core pack.

Referring to fig. 8, an aluminum electrolytic capacitor 200 according to another embodiment of the present utility model includes the aluminum electrolytic capacitor cover plate assembly 100 according to any one of the foregoing embodiments, a case 11, and a capacitor core pack mounted inside the case 11; wherein the capacitor core package is encapsulated in the housing 11 by the aluminum electrolytic capacitor cover plate assembly 100. Specifically, referring to fig. 2, 3, 6 and 8, the capacitor core package is placed in the casing 11, the rubber cover plate is encapsulated at the opening of the casing, and the casing is subjected to corset and opening hemming treatment, so that the casing tightly buckles the rubber cover plate, and the capacitor core package is sealed in the casing.

In some embodiments, the rubber cover plate is made of butyl rubber, can be applied to the use field of 125-150 ℃, and has strong sealing performance.

The capacitor core package comprises a core package main body formed by stacking and coaxially winding an electrolytic paper layer and an aluminum foil, wherein the top of the core package main body is provided with a cathode guide foil leading-out strip and an anode guide foil leading-out strip; the aluminum foil layer comprises a negative aluminum foil layer and a positive aluminum foil layer, wherein the negative aluminum foil layer is led out of the cathode guide foil lead-out strip; and the anode foil guiding strip is led out from the anode aluminum foil layer. The electrolytic paper layer is arranged between the negative aluminum foil layer and the positive aluminum foil layer.

The material of the shell of the aluminum electrolytic capacitor depends on the internal electrochemical environment of the packaged aluminum electrolytic capacitor and can be prepared from any nonferrous metal or alloy material thereof, wherein the nonferrous metal which can resist chemical reaction of the electrolyte of the aluminum electrolytic capacitor can be changed according to the property of the electrolyte of the aluminum electrolytic capacitor; such as stainless steel, high purity aluminum, alloy materials, and the like.

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

1. An aluminum electrolytic capacitor cover plate assembly, characterized in that: comprises a rubber cover plate and a terminal assembly arranged on the rubber cover plate; the upper surface of the rubber cover plate is provided with a lug protruding out of the upper surface of the rubber cover plate; the rubber cover plate is also provided with small holes penetrating through the upper surface and the lower surface of the rubber cover plate; the cover plate is also provided with an annular groove for being squeezed and clamped with an aluminum shell of the aluminum electrolytic capacitor; the terminal assembly comprises a leading-out guide pin, wherein the leading-out guide pin penetrates through a small hole in the rubber cover plate and is extruded and fixed through rubber elasticity of the rubber cover plate.

2. The aluminum electrolytic capacitor cover plate assembly as recited in claim 1, wherein: the edges of the convex blocks on the rubber cover plate are arranged in an arc shape, and the small holes are arranged on two sides of the convex blocks.

3. The aluminum electrolytic capacitor cover plate assembly as recited in claim 2, wherein: the rubber cover plate is characterized in that three lugs are arranged on the rubber cover plate, one lug is semicircular, the other two lugs are fan-shaped, a T-shaped groove is formed between the three lugs, and the small hole is arranged in the T-shaped groove.

4. The aluminum electrolytic capacitor cover plate assembly as recited in claim 3, wherein: the arc edges of the three convex blocks are positioned on the same circle.

5. The aluminum electrolytic capacitor cover plate assembly as recited in claim 1, wherein: the rubber cover plate is characterized in that the number of the lugs on the rubber cover plate is four, the four lugs are respectively in a fan-shaped structure, and cross-shaped grooves are formed between the lugs of the four fan-shaped structures.

6. The aluminum electrolytic capacitor cover plate assembly as recited in claim 5, wherein: the number of the small holes is four, and the four small holes are symmetrically or asymmetrically distributed on the cross-shaped groove.

7. The aluminum electrolytic capacitor cover plate assembly as recited in any one of claims 1-6, wherein: the leading-out guide needle is slender; wherein, one end of the leading-out guide needle is of a slender column shape, and the other end is of a flat tongue shape.

8. The aluminum electrolytic capacitor cover plate assembly as recited in claim 7, wherein: the middle of the leading-out guide pin is provided with a drum-shaped installation part.

9. The aluminum electrolytic capacitor cover plate assembly as recited in claim 8, wherein: the terminal assembly further comprises a pair of rivet guide pins, wherein the rivet guide pins are short and small, one end of each rivet guide pin is in a short and thin column shape, and the other end of each rivet guide pin is designed into a flat rivet shape.

10. The aluminum electrolytic capacitor cover plate assembly as recited in claim 9, wherein: the middle of the rivet guide pin is provided with a drum-shaped installation part.