CN219017459U

CN219017459U - Capacitor shell and capacitor

Info

Publication number: CN219017459U
Application number: CN202223393905.9U
Authority: CN
Inventors: 吴良波; 朱晨
Original assignee: Ningbo Bicai Electronic Technology Co ltd
Current assignee: Ningbo Bicai Electronic Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-12
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to the technical field of electronic elements, and provides a capacitor shell and a capacitor, comprising: the aluminum shell is made into a hollow cylinder shape, one end of the aluminum shell is provided with an opening, and one end of the aluminum shell, which is far away from the opening, is provided with a connecting hole; the connecting piece, connecting piece one end is provided with thermoplastic connecting portion, connecting portion pass the connecting hole and heat and mould the type after fixing on the aluminium system casing. Compared with the prior art, the utility model has the advantages that the hot melting connection between the connecting piece and the aluminum shell is realized by arranging the thermoplastic connecting piece, the operation of the connecting mode is simpler, the rejection rate of the capacitor shell is lower during production, and the manufacturing cost of the capacitor shell can be reduced.

Description

Capacitor shell and capacitor

Technical Field

The utility model relates to the technical field of electronic elements, in particular to a capacitor shell and a capacitor.

Background

A capacitor is an element that stores electric quantity and electric energy (potential energy). One conductor is surrounded by another conductor, or the electric field lines sent by one conductor are all terminated in the conductor system of the other conductor, which is called a capacitor, the capacitor shell is an important component of the capacitor, the capacitor shell shown in fig. 1 comprises an external aluminum shell 1 and an internal plastic body 2, the plastic body 2 is required to be pressed into the external aluminum shell 1 during assembly, then arc-shaped flanges 3 are manufactured by spin riveting of two ends of the external aluminum shell 1 through a spin riveting device, the assembly mode is time-consuming, the manufacturing cost and the processing time of parts are increased, and the situation that the external aluminum shell is cracked easily occurs when the external aluminum shell is thinner (single side of 2 mm) is spin-riveted, so that the rejection rate is high.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a capacitor shell and a capacitor aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: a capacitor case is proposed, comprising: the aluminum shell is made into a hollow cylinder shape, one end of the aluminum shell is provided with an opening, and one end of the aluminum shell, which is far away from the opening, is provided with a connecting hole;

the connecting piece, connecting piece one end is provided with thermoplastic connecting portion, connecting portion pass the connecting hole and heat and mould the type after fixing on the aluminium system casing.

In the above capacitor case, the cross sections of the connecting hole and the connecting portion are rectangular.

In the above capacitor case, the connecting member may include a disc-shaped body having a diameter smaller than an outer diameter of the aluminum case, the connecting portion may be disposed at one end of the disc-shaped body, and the other end of the disc-shaped body may be provided with a fastening portion.

In the above capacitor case, the fastening portion includes:

a fixing column provided at a middle position of the disc-shaped body;

a pressing block obliquely provided on the disk-shaped body;

the two buckle blocks are symmetrically arranged on two sides of the fixed column, one ends of the two buckle blocks are connected with one end of the fixed column, which is far away from the disc-shaped main body, and the side walls of the two buckle blocks and the central line of the fixed column are arranged in an oblique angle.

In the capacitor shell, the side wall of the fixing column is provided with the reinforcing column, and one end of the reinforcing column is connected to the disc-shaped main body.

The utility model solves the technical problems and also provides a capacitor shell device which comprises the capacitor shell and an upper cover, wherein the upper cover is clamped at the opening of the aluminum shell; a capacitor core body arranged in the aluminum shell, wherein the upper end of the capacitor core body is connected with a wire, and one end of the wire passes through the upper cover and is exposed out of the aluminum shell; and the insulating sleeve is clamped in the aluminum shell and is positioned between the capacitor core and the aluminum shell.

Compared with the prior art, the utility model has the advantages that the hot melting connection between the connecting piece and the aluminum shell is realized by arranging the thermoplastic connecting piece, the operation of the connecting mode is simpler, the rejection rate of the capacitor shell is lower during production, and the manufacturing cost of the capacitor shell can be reduced.

Drawings

Fig. 1 is a perspective view of a capacitor case of the prior art;

fig. 2 is a perspective view of the capacitor case of the present application;

FIG. 3 is a perspective view of the aluminum housing of the present application;

FIG. 4 is a perspective view of the molded connector;

fig. 5 is an exploded view of the capacitor of the present application.

In the figure, 1, an external aluminum shell; 2. a plastic body; 3. arc flanging; 4. an aluminum housing; 5. a connecting piece; 6. a connection hole; 7. a connection part; 8. a disc-shaped body; 9. fixing the column; 10. a tightening block; 11. a buckle block; 12. a reinforcing column; 13. a capacitor core; 14. an electric wire; 15. an insulating sleeve; 16. and (5) an upper cover.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 5, a capacitor case of the present utility model includes: the aluminum shell 4 is hollow and cylindrical, one end of the aluminum shell 4 is provided with an opening, and one end of the aluminum shell 4 far away from the opening is provided with a connecting hole 6; the connecting piece 5, connecting piece 5 one end is provided with thermoplastic connecting portion 7, connecting portion 7 pass connecting hole 6 and heat mould the type after fixing on aluminium system casing 4, hollow cylinder's aluminium system casing 4 is used for installing the other electronic components of condenser, connecting piece 5 is used for the condenser to be connected with other parts, thermoplastic connecting piece 5 is used for realizing the hot melt between connecting piece 5 and the aluminium system casing 4 and is connected, this kind of connected mode operation is simpler, and the disability rate of condenser casing is lower when producing, so just can reduce the manufacturing cost of condenser casing. Preferably, the cross-sections of the connecting hole 6 and the connecting portion 7 are rectangular.

During installation, the connecting part 7 of the connecting piece 5 is inserted into the connecting hole 6, then the part of the connecting part 7 extending into the aluminum shell 4 is softened through the ultrasonic hot melting machine, and finally the softened part of the connecting part 7 is molded, so that the connecting part 7 generates back-off in the aluminum shell 4, and finally the connecting piece 5 and the aluminum shell 4 are buckled together.

Further, the connecting piece 5 comprises a disc-shaped main body 8, the diameter of the disc-shaped main body 8 is smaller than the outer diameter of the shell 4, the connecting portion 7 is arranged at one end of the disc-shaped main body 8, and a buckling portion is arranged at the other end of the disc-shaped main body 8.

The disc-shaped main body 8 is used for being attached to the end part of the aluminum shell 4, and the connecting piece 5 arranged at the other end of the disc-shaped main body 8 is used for connecting the capacitor shell with other devices.

Preferably, the connecting portion 7, the disc-shaped main body 8 and the fastening portion are integrally formed by an injection molding process.

Further, the fastening portion includes: a fixing column 9 provided at an intermediate position of the disc-shaped body 8; a pressing block 10 which is provided obliquely to the disc-shaped main body 8; the two buckle blocks 11 are symmetrically arranged on two sides of the fixed column 9, one ends of the two buckle blocks 11 are connected to one end, far away from the disc-shaped main body 8, of the fixed column 9, and the side walls of the two buckle blocks 11 are arranged at an oblique angle with the center line of the fixed column 9.

When the capacitor is installed, the two buckling blocks 11 shrink in the direction of the fixing column 9 in the installation process to generate elastic deformation, so that the two buckling blocks 11 penetrate into a part needing the capacitor, after the buckling blocks 11 penetrate, the two buckling blocks 11 are restored to the original positions, the end parts of the buckling blocks 11 are propped against the side wall of the part needing the capacitor, the capacitor is prevented from being separated from the part needing the capacitor, and the propping block 10 is propped against the other end face of the part needing the capacitor, so that the capacitor is more tightly installed between the capacitor and the part needing the capacitor.

Further, be provided with the reinforcing column 12 on the lateral wall of fixed column 9, the one end of reinforcing column 12 is connected on disk main part 8, and the setting of reinforcing column 12 can increase the structural strength of whole buckling parts, prevents to take place to fracture because of the buckling parts and makes the separation between condenser and the part that needs the installation condenser.

The scheme also comprises a capacitor, comprising an upper cover 16, wherein the upper cover 16 is clamped at the opening of the aluminum shell 4, and the clamping between the upper cover 16 and the aluminum shell 4 can be realized through interference fit, namely, the diameter of the part of the upper cover 16 extending into the aluminum shell 4 is designed to be slightly larger than the inner diameter of the aluminum shell 4; a capacitor core 13 provided in the aluminum case 4, an electric wire 14 being connected to an upper end of the capacitor core 13, one end of the electric wire 14 passing through the upper cover 16 and being exposed outside the aluminum case 4; the insulating sleeve 15 is clamped in the aluminum shell 4 and is positioned between the capacitor core 13 and the aluminum shell 4, the insulating sleeve 15 is used for insulating the capacitor core 13 and the aluminum shell, and the clamping between the insulating sleeve 15 and the aluminum shell 4 can also be realized through interference fit.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A capacitor case, comprising:

the aluminum shell is made into a hollow cylinder shape, one end of the aluminum shell is provided with an opening, and one end of the aluminum shell, which is far away from the opening, is provided with a connecting hole;

2. The capacitor housing of claim 1 wherein said connecting hole and said connecting portion are rectangular in cross-section.

3. The capacitor case of claim 1, wherein the connection member comprises a disk-shaped body having a diameter smaller than an outer diameter of the aluminum case, the connection portion is provided at one end of the disk-shaped body, and the other end of the disk-shaped body is provided with a fastening portion.

4. A capacitor case as claimed in claim 3, wherein the connection portion, the disc-shaped body and the fastening portion are integrally formed by an injection molding process.

5. The capacitor housing of claim 4 wherein said snap-fit portion comprises:

a fixing column provided at a middle position of the disc-shaped body;

a pressing block obliquely provided on the disk-shaped body;

6. The capacitor case of claim 5, wherein a reinforcing post is provided on a side wall of the fixing post, and one end of the reinforcing post is connected to the disc-shaped body.

7. A capacitor comprising the capacitor case according to any one of claims 1 to 6, further comprising:

the upper cover is clamped at the opening of the aluminum shell;

a capacitor core body arranged in the aluminum shell, wherein the upper end of the capacitor core body is connected with a wire, and one end of the wire passes through the upper cover and is exposed out of the aluminum shell;

and the insulating sleeve is clamped in the aluminum shell and is positioned between the capacitor core and the aluminum shell.