CN211016799U

CN211016799U - Aluminum electrolytic capacitor convenient for mounting double-sided substrate

Info

Publication number: CN211016799U
Application number: CN202020044286.4U
Authority: CN
Inventors: 张洪斌; 张业维; 林娟; 吴培恺
Original assignee: Guangzhou Chinsan Electronic Co ltd
Current assignee: Guangzhou Chinsan Electronic Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-07-14
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses an aluminium electrolytic capacitor who just is used for two-sided base plate installation, including casing, the electric capacity core of setting in the casing and be used for the insulating end cover that the lid closed the casing, positive pole pin and negative pole pin have been drawn forth to the electric capacity core, positive pole pin and negative pole pin all include interior linkage segment, outer linkage segment and bending segment, the front end of interior linkage segment is buckled has perpendicular decurrent bending segment, the outer linkage segment that the level set up is connected with to the lower extreme of bending segment, the below of insulating end cover is equipped with the connecting plate of activity, be equipped with binding post on the connecting plate, the rear end of interior linkage segment passes insulating end cover along the axial direction of casing and is connected with binding post up end, be equipped with the piece of drawing forth of being connected with binding post lower terminal surface on the electric. The pins are changed from the original vertical type to the horizontal type, so that the height occupied by the aluminum electrolytic capacitor is reduced, the aluminum electrolytic capacitor can be arranged on both sides of the substrate, and a large amount of space is saved.

Description

Aluminum electrolytic capacitor convenient for mounting double-sided substrate

Technical Field

The utility model relates to the technical field of capacitors, in particular to an aluminum electrolytic capacitor convenient for mounting a double-sided substrate.

Background

Capacitors, referred to as capacitors, are also the main components that make up electronic circuits. It can store electric energy and has the characteristics of charging, discharging, alternating current communication and direct current isolation. It is one of indispensable basic elements for mass use of various types of electronic devices. Various capacitors can play different roles in the circuit, such as coupling and blocking, bypassing, rectifying filtering, high frequency filtering, tuning, energy storage, frequency division, and the like. The capacitor is selected according to the voltage, frequency, signal waveform, AC/DC component and temperature/humidity conditions in the circuit.

At present, electronic products such as TV, L CD and the like on the market develop towards thinning, the thickness of the products is often determined by the height of components on a circuit board, and the thinning of the products can be realized only by a miniaturized capacitor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides an aluminum electrolytic capacitor which is convenient for mounting a double-sided substrate, has small occupied space and convenient installation, and solves the problem that the aluminum electrolytic capacitor can only be mounted on one side of the substrate in the same space.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an aluminium electrolytic capacitor who just is used for two-sided base plate installation, includes the casing, sets up the electric capacity core in the casing and is used for closing the insulating end cover of casing, positive pole pin and negative pole pin have been drawn forth to the electric capacity core, positive pole pin and negative pole pin all include interior linkage segment, outer linkage segment and bending segment, the front end of interior linkage segment is buckled and is had perpendicular decurrent bending segment, the outer linkage segment that the level set up is connected to the lower extreme of bending segment, the below of insulating end cover is equipped with the connecting plate of activity, be equipped with binding post on the connecting plate, the rear end of interior linkage segment passes insulating end cover and binding post up end along the axial direction of casing and is connected, be equipped with the piece of drawing forth that is connected with binding post lower terminal.

Preferably, the length ratio of the outer connecting section to the bending section to the inner connecting section is 1:1: 2.

As preferred scheme, be equipped with the slide rail on the inner wall on casing upper portion, the slide rail is protruding to the inboard, the spout with slide rail matched with has all been seted up at the both ends of connecting plate.

Preferably, a spring is arranged between the connecting plate and the insulating end cover, one end of the spring is connected with the upper end of the connecting plate, and the other end of the spring is connected with the lower surface of the insulating end cover.

As the preferred scheme, be equipped with the through-hole on the connecting plate, the inboard of through-hole is equipped with the bayonet socket, binding post's side is equipped with the fixture block with bayonet socket matched with.

Preferably, a first beam waist and a second beam waist for compressing the capacitor core are arranged on the surface of the shell, and the first beam waist and the second beam waist are both arc-shaped.

Preferably, the shell comprises an inner shell layer and an outer shell layer, a cavity is formed between the inner shell layer and the outer shell layer, and the cavity is filled with the buffer layer.

Preferably, the buffer layer is a steel wire mesh layer.

Preferably, the upper part of the shell is provided with a third beam waist for compressing the insulating end cover.

Compared with the prior art, the beneficial effects of the utility model are that: the anode pin and the cathode pin are composed of an inner connecting section, a bending section and an outer connecting section, so that the pins of the aluminum electrolytic capacitor are changed from the original vertical type to the horizontal type, the height occupied by the aluminum electrolytic capacitor is reduced, the aluminum electrolytic capacitor can be arranged on two sides of the substrate, a large amount of space is saved, and the adaptability of the aluminum electrolytic capacitor is improved; simultaneously, set up the connecting plate of activity in the below of insulating end cover, the internal connection section in positive pole pin and the negative pole pin passes insulating end cover and is connected with the up end of binding post on the connecting plate, the electric capacity core is connected with binding post's lower terminal surface through drawing forth the piece, thereby make aluminium electrolytic capacitor normal use, after aluminium electrolytic capacitor work, receive great voltage and produce gas, make the inside pressure of casing constantly rise, and then let the connecting plate upward movement, make to draw forth the piece and break away from with binding post's connection, let the condenser stop work, thereby can not blast, high safety, explosion-proof nature is good.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the inside of an aluminum electrolytic capacitor of the present invention which is conveniently used for double-sided substrate mounting.

Fig. 2 is a schematic view at a in fig. 1.

Fig. 3 is a schematic view of the aluminum electrolytic capacitor of the present invention which is conveniently used for double-sided substrate mounting.

1-a shell; 101-an outer shell layer; 102-an inner shell layer; 2-anode pin; 3-a cathode pin; 31-an inner connecting section; 32-bending section; 33-an external connection section; 4-connecting plates; 5-leading out the sheet; 6-insulating end covers; 7-a slide rail; 8-a spring; 9-a buffer layer; 10-a first corset; 11-a second corset; 12-third corset; 13-capacitor core; 14-a through hole; 15-a connecting terminal; 16-bayonet; 17-a fixture block.

Detailed Description

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

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

Example 1

Referring to fig. 1-3, an aluminum electrolytic capacitor convenient for double-sided substrate mounting includes a housing 1, a capacitor core 13 disposed in the housing 1, and an insulating end cover 6 for covering the housing 1, an anode pin 2 and a cathode pin 3 are led out from the capacitor core 13, the anode pin 2 and the cathode pin 3 both include an inner connecting section 31, an outer connecting section 33, and a bending section 32, a vertically downward bending section 32 is bent at a front end of the inner connecting section 31, a horizontally disposed outer connecting section 33 is connected to a lower end of the bending section 32, a movable connecting plate 4 is disposed below the insulating end cover 6, a connecting terminal 15 is disposed on the connecting plate 4, a rear end of the inner connecting section 31 penetrates through the insulating end cover 6 along an axial direction of the housing 1 to be connected with an upper end face of the connecting terminal 15, and a leading-out piece 5 connected with a lower end face of the connecting terminal 15 is disposed.

By adopting the scheme, the anode pin 2 and the cathode pin 3 are composed of the inner connecting section 31, the bending section 32 and the outer connecting section 33, so that the pins of the aluminum electrolytic capacitor are changed from the original vertical type to the horizontal type, the height occupied by the aluminum electrolytic capacitor is reduced, the aluminum electrolytic capacitor can be arranged on both sides of the substrate, a large amount of space is saved, and the adaptability of the aluminum electrolytic capacitor is improved; meanwhile, a movable connecting plate 4 is arranged below an insulating end cover 6, an inner connecting section 31 in an anode pin 2 and a cathode pin 3 penetrates through the insulating end cover 6 to be connected with the upper end face of a connecting terminal 15 on the connecting plate 4, a capacitor core 13 is connected with the lower end face of the connecting terminal 15 through a lead-out piece 5, and therefore the aluminum electrolytic capacitor is normally used, after the aluminum electrolytic capacitor works, gas is generated due to the fact that large voltage is applied, the pressure inside a shell 1 is constantly raised, then the connecting plate 4 moves upwards, the lead-out piece 5 is separated from being connected with the connecting terminal 15, the capacitor stops working, explosion cannot occur, safety is high, and explosion resistance is good.

Preferably, the length ratio of the outer connecting section 33, the bent section 32 and the inner connecting section 31 is 1:1: 2.

By adopting the scheme, the length ratio of the outer connecting section 33 to the bending section 32 to the inner connecting section 31 is 1:1:2, so that the strength of the pins is ensured, and the normal use of the aluminum electrolytic capacitor is prevented from being influenced by breakage in the using process.

Preferably, be equipped with slide rail 7 on the inner wall on casing 1 upper portion, slide rail 7 is protruding to the inboard, and the spout with slide rail 7 matched with has all been seted up at the both ends of connecting plate 4.

Preferably, a spring 8 is arranged between the connecting plate 4 and the insulating end cover 6, one end of the spring 8 is connected with the upper end of the connecting plate 4, the other end of the spring 8 is connected with the lower surface of the insulating end cover 6, a through hole 14 is arranged on the connecting plate 4, a bayonet 16 is arranged on the inner side of the through hole 14, and a clamping block 17 matched with the bayonet 16 is arranged on the side edge of the connecting terminal 15.

Preferably, a first beam waist 10 and a second beam waist 11 for compressing the capacitor core 13 are arranged on the inner surface of the shell 1, the first beam waist 10 and the second beam waist 11 are both arc-shaped, and a third beam waist 12 for compressing the insulating end cap 6 is arranged on the upper part of the shell 1.

By adopting the scheme, the first beam waist 10 and the second beam waist 11 respectively compress the upper part and the lower part of the outer surface of the capacitor core 13, so that the situation that the performance of the aluminum electrolytic capacitor is unstable and the cathode and the anode are short-circuited when the aluminum electrolytic capacitor is severely shaken is prevented; the third beam waist 12 compresses the two ends of the insulating end cover 6, so that the insulating end cover 6 is more firmly fixed, and the shell 1 has better sealing performance.

Preferably, the shell 1 comprises an inner shell layer 102 and an outer shell layer 101, a cavity is formed between the inner shell layer 102 and the outer shell layer 101, the cavity is filled with a buffer layer, and the buffer layer is a steel wire mesh layer 9.

By adopting the scheme, the steel wire mesh layer 9 arranged between the inner shell layer 102 and the outer shell layer 101 can buffer the pressure inside the capacitor, effectively prevent the shell 1 from deforming due to overlarge air pressure inside the shell, and can play a role in shielding a magnetic field.

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

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

Claims

1. The utility model provides an aluminium electrolytic capacitor who just is used for two-sided base plate to install, includes the casing, sets up electric capacity core in the casing and is used for closing the insulating end cover of casing, positive pole pin and cathode pin have been drawn forth to electric capacity core, its characterized in that: the positive pole pin and negative pole pin all include interior linkage segment, outer linkage segment and bending segment, the front end of interior linkage segment is buckled has perpendicular decurrent bending segment, the lower extreme of bending segment is connected with the outer linkage segment that the level set up, the below of insulating end cover is equipped with movable connecting plate, be equipped with binding post on the connecting plate, the rear end of interior linkage segment passes insulating end cover along the axial direction of casing and is connected with binding post up end, be equipped with the piece of drawing forth that is connected with binding post down end face on the electric capacity core.

2. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: the length ratio of the outer connecting section to the bending section to the inner connecting section is 1:1: 2.

3. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: be equipped with the slide rail on the inner wall on casing upper portion, the slide rail is protruding to the inboard, the spout with slide rail matched with has all been seted up at the both ends of connecting plate.

4. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 3, wherein: and a spring is arranged between the connecting plate and the insulating end cover, one end of the spring is connected with the upper end of the connecting plate, and the other end of the spring is connected with the lower surface of the insulating end cover.

5. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: the connecting plate is provided with a through hole, the inner side of the through hole is provided with a bayonet, and the side edge of the connecting terminal is provided with a clamping block matched with the bayonet.

6. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: the inner surface of the shell is provided with a first beam waist and a second beam waist which are used for compressing the capacitor core, and the first beam waist and the second beam waist are both arc-shaped.

7. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: the shell comprises an inner shell layer and an outer shell layer, a cavity is formed between the inner shell layer and the outer shell layer, and a buffer layer is filled in the cavity.

8. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 7, wherein: the buffer layer is a steel wire mesh layer.

9. The aluminum electrolytic capacitor for double-sided substrate mounting as recited in claim 1, wherein: and the upper part of the shell is provided with a third beam waist for compressing the insulating end cover.