CN218826666U

CN218826666U - Welding pin type aluminum electrolytic capacitor

Info

Publication number: CN218826666U
Application number: CN202222730051.2U
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: 2023-04-07
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a welding pin type aluminum electrolytic capacitor, which comprises a shell, a capacitor core package arranged in the shell, a cover plate for packaging the capacitor core package in the shell, and a terminal component arranged on the cover plate; the cover plate is a rubber cover plate, a cross-shaped groove is formed in the upper surface of the cover plate, and small holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cross-shaped groove; the terminal assembly comprises a pair of guide pin type leading-out terminals and a pair of welding pin type leading-out terminals; the guide pin type leading-out terminal is slender, one end of the guide pin type leading-out terminal is slender column-shaped, and the other end of the guide pin type leading-out terminal is flat tongue-shaped. The utility model discloses needle formula of welding aluminium electrolytic capacitor can realize the sharing of multiple pin aluminium electrolytic capacitor's packaging mode to improve production efficiency and reduce cost.

Description

Welding pin type aluminum electrolytic capacitor

Technical Field

The utility model belongs to the technical field of the condenser, especially, relate to a welding pin formula aluminum electrolytic capacitor.

Background

With the continuous improvement of capacitor performance, electrolytic capacitors have been widely used in consumer electronics products, communication products, computers and peripheral products, new energy, automation control, automobile industry, photovoltaic products, high speed railways, aviation and military equipment, and the like. In the technical field of consumer electronics, along with structure transformation and technical progress, the application of the electrolytic capacitor has the characteristics of small volume, large stored electricity and high cost performance, 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 and wider application range.

At present, specifications and types of electrolytic capacitors are relatively complete, mounting and fixing modes of the electrolytic capacitors are determined according to the capacity and the application of the electrolytic capacitors, and include a patch type, a lead plug type, a soldering terminal plug type, a screw mounting type and the like, and different types of products in the product series need to be designed with corresponding packaging modes, so that some packages may be designed in a repeated overlapping manner, for example: the lead wire type packaging of the guide pin of part specification and dimension can also adopt the welding pin type packaging, the performance of the products obtained by the two types of packaging is basically the same, the difference is only that the lead capacitor electrode belongs to a rigid non-transition leading-out positive and negative terminal, and the lead capacitor electrode is led out to a flexible leading-out positive and negative terminal, and the latter has excellent shock resistance.

It can be seen that, in the prior art, the overlapped packaging mode design will result in increased investment of production cost, and ultimately, increased cost of the product.

Therefore, in order to solve the above problems in the prior art, it is necessary to develop and research a solution that can implement sharing of the package method, thereby reducing the cost and improving the production efficiency.

The above background disclosure is only provided as an aid to understanding the inventive concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of this patent application, and it should not be used to evaluate the novelty and inventive step of this application in the case that there is no clear evidence that the above contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding pin formula aluminum electrolytic capacitor to solve at least one kind among the above-mentioned background art problem.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a welding pin type aluminum electrolytic capacitor comprises a shell, a capacitor core cladding arranged in the shell, a cover plate for packaging the capacitor core cladding in the shell, and a terminal assembly arranged on the cover plate; the cover plate is a rubber cover plate, a cross-shaped groove is formed in the upper surface of the cover plate, and small holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cross-shaped groove; the terminal assembly comprises a pair of guide pin type leading-out terminals and a pair of welding pin type leading-out terminals; the guide pin type leading-out terminal is slender, one end of the guide pin type leading-out terminal is slender and cylindrical, and the other end of the guide pin type leading-out terminal is flat and tongue-shaped.

In some embodiments, the welding pin type leading-out terminal comprises a leading-out guide pin and a welding pin terminal connected with the leading-out guide pin.

In some embodiments, the pin terminal is L-shaped, and includes a rivet tab connected to the lead-out guide pin, and a pin formed by bending and extending the rivet tab.

In some embodiments, the welding pin terminal is integrally formed, a riveting hole is formed in the riveting sheet, and the leading-out guide pin is riveted and fixed with the welding pin terminal through the riveting hole.

In some embodiments, the welding pin is perpendicular to the rivet sheet, and the welding pin is in an inverted T-shaped structure.

In some embodiments, the two welding pin type leading-out terminals are arranged in a straight line groove of the cross-shaped groove in the same direction or opposite directions.

In some embodiments, the pin terminals include two pin terminals, and the two pin terminals are disposed opposite to each other to form a concave shape.

In some embodiments, one end of the extraction guide pin is in a flat aluminum nail shape, and a drum-shaped protrusion is arranged on the extraction guide pin.

In some embodiments, the upper surface of the rubber cover plate is provided with a plurality of fan-shaped protrusions, and the cross-shaped groove is formed between the fan-shaped protrusions.

In some embodiments, the cover plate is further provided with an annular groove for pressing and clamping with the shell when the shell is bunched.

The utility model discloses technical scheme's beneficial effect is:

compared with the prior art, the utility model discloses weld pin type aluminum electrolytic capacitor can realize the sharing of multiple pin aluminum electrolytic capacitor's packaging mode to improve production efficiency and reduce 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 invention as claimed.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic view of a three-dimensional structure of a welding pin type aluminum electrolytic capacitor according to an embodiment of the present invention;

FIG. 2 is a partially exploded view of a pin-type aluminum electrolytic capacitor according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a capacitor core package of a welding pin type aluminum electrolytic capacitor according to an embodiment of the present invention;

FIG. 4 is a perspective view of a welding pin type aluminum electrolytic capacitor according to another embodiment of the present invention;

FIG. 5 is a perspective view of a pin-type aluminum electrolytic capacitor according to still another embodiment of the present invention;

FIG. 6 is a schematic view of a pin type lead-out terminal of a pin type aluminum electrolytic capacitor according to an embodiment of the present invention;

fig. 7 is a schematic view of a cover plate of a welding pin type aluminum electrolytic capacitor according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the embodiments of the present invention more clearly understood, the technical solutions in the embodiments of the present invention can be better understood by those skilled in the art, and the drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" 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. The connection may be for fixation or for circuit connection.

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 used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, "plurality" means two or more, and the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as fixed connections, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 7, a welding pin type aluminum electrolytic capacitor 100 is provided as an embodiment of the present invention, including a case 10, a capacitor core package 20 installed inside the case 10, a cover plate 30 enclosing the capacitor core package 20 in the case 10, and a terminal assembly installed on the cover plate 30; the cover plate 30 is a rubber cover plate, a cross-shaped groove 301 is formed in the upper surface of the cover plate 30, and small holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cross-shaped groove 301; the terminal assembly comprises a pair of guide pin type leading-out terminals 41 and a pair of welding pin type leading-out terminals 42; the guide pin type leading-out terminal 41 is slender, one end of the guide pin type leading-out terminal 41 is slender column-shaped, and the other end is flat tongue-shaped; the welding pin type leading-out terminal 42 comprises a leading-out guide pin 420 and a welding pin terminal 421 connected with the leading-out guide pin 420; the welding pin terminal 421 is L-shaped, and includes a riveting sheet 4210 connected to the lead-out guide pin, and a welding pin 4211 formed by bending and extending the riveting sheet.

In some embodiments, the pin terminal 421 is integrally formed, the riveting plate 4210 is provided with a riveting hole, the lead-out guide pin 420 is riveted and fixed with the pin terminal 421 through the riveting hole, and the pin 4211 is perpendicular to the riveting plate 4210. In some embodiments, the weld pin 4211 is in an inverted T-shaped configuration.

Referring to fig. 2, 4, 5 and 7, two pin-type terminals 42 are arranged in a straight line groove of the cross-shaped groove in the same direction or opposite directions.

Referring to fig. 1, 6 and 7, in some embodiments, the pin terminals 42 include two pin terminals 421, and the two pin terminals 421 are arranged in pairs to form a concave shape. It should be noted that, in some embodiments, the two pin terminals 421 may be in a separate design, and the two separate pin terminals are stacked together through a riveting hole, or may be integrally formed (that is, the two pin terminals are in an integral design and share a riveting hole).

Referring to fig. 6 and 7, one end of the extraction guide pin 420 is in a flat aluminum nail shape, and a drum-shaped protrusion is disposed on the extraction guide pin to press the small hole on the rubber cover plate, so as to be fixed in the small hole of the rubber cover plate.

In some embodiments, the upper surface of the rubber cover plate 30 is provided with a plurality of fan-shaped protrusions 302, and the cross-shaped grooves are formed between the fan-shaped protrusions 302; the cover plate 30 is also provided with an annular groove 303 for extruding and clamping the shell when the shell is bound to the waist; the guide pin type leading-out terminal 41 penetrates through a small hole in the cover plate and is extruded and fixed through rubber elasticity of the cover plate.

In some embodiments, there are four scallops 302 on the cover plate 30 and four apertures, arranged in a symmetrical or asymmetrical pattern in the cross-slot.

One end of the long and thin column shape of the pin type leading-out terminal 41 is welded with a CP wire, and one end of the flat tongue shape is inserted into the capacitor core bag.

Referring to fig. 1 to 3, a capacitor core package 20 is placed in a housing 10, a rubber cover plate is sealed at an opening of the housing, and the housing is subjected to a girdling and opening hemming process, so that the housing tightly buckles the rubber cover plate, thereby sealing the capacitor core package in the housing.

In some embodiments, the rubber cover plate 30 is made of butyl rubber, which can be applied to use scenes at 125-150 ℃, and has strong sealing performance.

The capacitor core package 20 comprises a core package main body formed by laminating, coaxially winding an electrolytic paper layer and an aluminum foil, wherein a cathode guide foil leading-out strip and an anode guide foil leading-out strip are arranged at the top of the core package main body; the aluminum foil layer comprises a negative aluminum foil layer and a positive aluminum foil layer, wherein the negative lead foil leading strip is led out of the negative aluminum foil layer; and the anode conductive foil leading-out strip is led out from the anode aluminum foil layer. The electrolytic paper layer is arranged between the negative electrode aluminum foil layer and the positive electrode aluminum foil layer.

The material of the shell of the welding pin type aluminum electrolytic capacitor of the utility model depends on the internal electrochemical environment of the packaged aluminum electrolytic capacitor, and can be made of any nonferrous metal or alloy material thereof, wherein the nonferrous metal which can bear the chemical reaction of the electrolyte can be changed according to the electrolyte property 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 more detailed description of the invention, and specific embodiments thereof are described in conjunction with the detailed description, which is not intended to limit the invention to the particular forms disclosed. For those skilled in the art to which the invention pertains, several alternatives or modifications can be made to the described embodiments without departing from the inventive concept, and these alternatives or modifications should be construed as belonging to the scope of the present patent. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "preferred embodiments," "example," "specific example," or "some examples" or the like 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 present invention.

In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention 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 of the invention as defined by the appended claims.

Moreover, 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. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, 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. A welding pin type aluminum electrolytic capacitor is characterized in that: the capacitor core package structure comprises a shell, a capacitor core package arranged in the shell, a cover plate for packaging the capacitor core package in the shell and a terminal assembly arranged on the cover plate; the cover plate is a rubber cover plate, a cross-shaped groove is formed in the upper surface of the cover plate, and small holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cross-shaped groove; the terminal assembly comprises a pair of guide pin type leading-out terminals and a pair of welding pin type leading-out terminals; the guide pin type leading-out terminal is slender, one end of the guide pin type leading-out terminal is slender column-shaped, and the other end of the guide pin type leading-out terminal is flat tongue-shaped.

2. The welding-pin type aluminum electrolytic capacitor according to claim 1, wherein: the welding needle type leading-out terminal comprises a leading-out guide needle and a welding needle terminal connected with the leading-out guide needle.

3. The welding pin type aluminum electrolytic capacitor according to claim 2, wherein: the welding pin terminal is L-shaped and comprises a riveting sheet connected with the leading-out guide pin and a welding pin formed by bending and extending the riveting sheet.

4. The welding-pin type aluminum electrolytic capacitor according to claim 3, wherein: the welding pin terminal is integrally formed, a riveting hole is formed in the riveting sheet, and the leading-out guide pin is fixedly riveted with the welding pin terminal through the riveting hole.

5. The welding-pin type aluminum electrolytic capacitor according to claim 4, wherein: the welding pin is perpendicular to the riveting sheet and is of an inverted T-shaped structure.

6. The welding-pin type aluminum electrolytic capacitor according to claim 5, wherein: the two welding pin type leading-out terminals are arranged in a straight line groove of the cross-shaped groove in the same direction or opposite directions.

7. The welding-pin type aluminum electrolytic capacitor according to claim 6, wherein: the welding pin type leading-out terminal comprises two welding pin terminals which are oppositely arranged to form a concave shape.

8. The welding-pin type aluminum electrolytic capacitor according to claim 7, wherein: one end of the leading-out guide pin is in a flat-head aluminum nail shape, and a drum-shaped protrusion is arranged on the leading-out guide pin.

9. The welding-pin type aluminum electrolytic capacitor according to claim 8, wherein: the upper surface of the rubber cover plate is provided with a plurality of fan-shaped lugs, and the cross-shaped groove is formed between the fan-shaped lugs.

10. The welding-pin type aluminum electrolytic capacitor according to claim 9, wherein: the cover plate is also provided with an annular groove for extruding and clamping the shell when the shell is bound to the waist.