CN212676111U

CN212676111U - Aluminum-shell dry-type film capacitor

Info

Publication number: CN212676111U
Application number: CN202021910959.6U
Authority: CN
Inventors: 何文钜
Original assignee: Guangdong Fengming Electronic Tech Co ltd
Current assignee: Guangdong Fengming Electronic Tech Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-03-09
Anticipated expiration: 2030-09-04

Abstract

The utility model particularly relates to an aluminum hull dry-type film capacitor, including core, insulator arrangement and aluminum hull, the core is equipped with the stitch, wherein: the core is arranged in the insulating device, the insulating device is positioned in the aluminum shell, epoxy resin is filled between the core and the aluminum shell and seals the insulating device, and at least one epoxy flow channel is arranged on the surface of the insulating device. The utility model has the advantages that: this structure is an independent part through insulator arrangement, purchase and production need be equipped with a material, and the staff places insulator arrangement and need place once, and the core need not wrap up the insulated paper and directly puts in the insulator arrangement the inside, and is difficult to remain the air between insulator arrangement surface, core and the aluminum hull, and it is bad that epoxy is changeed to flow and the difficult gassing of encapsulation, and insulator arrangement's design can improve production efficiency, improve embedment quality, improve product leakproofness and the essence material that subtracts.

Description

Aluminum-shell dry-type film capacitor

Technical Field

The utility model relates to an aluminum hull dry-type film capacitor technical field specifically is an aluminum hull dry-type film capacitor.

Background

The existing aluminum-shell dry-type film capacitor is generally designed by placing an insulating bottom sleeve at the bottom of a core to solve the short circuit problem of a gold-sprayed layer of a lower electrode of the capacitor core and the aluminum shell, and simultaneously wrapping a circle of insulating paper around the capacitor core to solve the short circuit problem of the gold-sprayed layer of the upper electrode of the capacitor core and the aluminum shell. The internal insulation is designed into two independent parts, staff in the production process of the capacitor firstly place the insulation bottom sleeve at the bottom of the aluminum shell, then wrap the core with a circle of insulation paper and then place the core in the aluminum shell, and the production efficiency is low; meanwhile, air is easily left between the insulating paper and the core, and between the insulating paper and the aluminum shell, and the appearance of bubbles is easily poor due to epoxy filling of the capacitor, and meanwhile, the sealing performance of the product is also affected.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned prior art not enough, provide an aluminum hull dry-type film capacitor that can improve production efficiency, improve embedment quality, improve the product leakproofness and the essence subtracts the material.

The utility model discloses a dry-type film capacitor of aluminum hull, including core, insulating device and aluminum hull, the core is equipped with the stitch, wherein: the core is arranged in the insulating device, the insulating device is positioned in the aluminum shell, epoxy resin is filled between the core and the aluminum shell and seals the insulating device, and at least one epoxy flow channel is arranged on the surface of the insulating device.

Specifically, the bottom surface of the insulating device is provided with at least one salient point, and the salient point is pressed against the inner bottom surface of the aluminum shell.

Particularly, the bottom surface of the insulating device is provided with a rib position.

Specifically, the rib position is in a straight line shape or a cross shape.

Specifically, a gold-sprayed layer insulating protective layer is arranged on the surface of the insulating device.

Particularly further, the insulation device is a plastic shell.

Specifically, a space is left between the surface of the core and the inner wall of the insulation device.

The utility model has the advantages that: this structure is an independent part through insulator arrangement, purchase and production need be equipped with a material, and the staff places insulator arrangement and need place once, and the core need not wrap up the insulated paper and directly puts in the insulator arrangement the inside, and is difficult to residual air between insulator arrangement surface, core and the aluminum hull, and it is bad that epoxy is changeed to flow and the difficult gassing of encapsulation, and insulator arrangement's design can improve production efficiency, improve embedment quality, improve product leakproofness and the essence material that subtracts.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure view of M-M of fig. 1.

Fig. 3 is a schematic view of the installation state structure of the present invention.

Fig. 4 is a schematic sectional structure diagram of the present invention.

The reference numbers are as follows: the device comprises an insulation device 1, salient points 101, an electrode gold-sprayed layer insulation protection layer 102, an epoxy runner 103, a rib position 104, an aluminum shell 2 and a core 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the present invention describes an aluminum dry film capacitor, which comprises a core 3, an insulating device 1 and an aluminum shell 2, wherein the core 3 is provided with a terminal, wherein: the core 3 is arranged in the insulation device 1, the insulation device 1 is positioned in the aluminum shell 2, epoxy resin is filled between the core 3 and the aluminum shell 2 and the insulation device 1 is sealed, and at least one epoxy flow channel 103 is arranged on the surface of the insulation device 1.

This structure is an independent part through insulator arrangement 1, purchase and production need be equipped with a material, the staff places insulator arrangement 1 and need place once, core 3 need not wrap up the insulated paper and directly put in insulator arrangement 1 the inside, and insulator arrangement 1, be difficult to residual air between core 3 and the aluminum hull 2, it is bad that epoxy is changeed to flow and the difficult gassing of encapsulation, insulator arrangement 1's design can improve production efficiency, improve the embedment quality, improve product leakproofness and the essence material that subtracts.

This structure is preferred to set up four epoxy runners 103, is convenient for epoxy to flow into between insulating device 1 and aluminum hull 2.

In addition, the bottom surface of the insulating device 1 is provided with at least one salient point 101, the salient point 101 is propped against the inner bottom surface of the aluminum shell 2, and a space is reserved between the bottom surface of the insulating device 1 and the inner bottom surface of the aluminum shell 2, so that epoxy resin can be conveniently filled; in addition, the bottom surface of the insulation device 1 is provided with a rib position 104. The rib position 104 is in a shape of a straight line or a cross, a space is reserved between the surface of the core 3 and the inner wall of the insulation device 1, the epoxy resin is conveniently filled, and the positions of the core 3 and the insulation device 1 are fixed.

The surface of the insulation device 1 is provided with a gold-sprayed layer insulation protective layer 102, so that an insulation effect is achieved. The insulation device 1 is a plastic shell and has an insulation effect.

The working principle of the structure is as follows: the core 3, the insulating device 1 and the aluminum shell 2 are sequentially installed, a certain space is reserved between the insulating device 1 and the bottom of the aluminum shell 3 due to the four salient points 1 at the bottom of the insulating device 1 for epoxy filling, the short circuit problem between the core 3 and the aluminum shell 2 is solved by the electrode gold-spraying layer insulating protective layer 102, the space between the insulating device 1 and the aluminum shell 2 is filled with epoxy resin through the four epoxy runners 103, the insulating and fixing effects are achieved, and the short circuit problem between the core 3 and the aluminum shell is solved by the electrode gold-spraying layer insulating protective layer 102 on the surface of the core 3.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, or improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides an aluminum hull dry-type film capacitor, includes core (3), insulator arrangement (1) and aluminum hull (2), and core (3) are equipped with the stitch, its characterized in that: the core (3) is arranged in the insulation device (1), the insulation device (1) is located in the aluminum shell (2), epoxy resin is filled between the core (3) and the aluminum shell (2) and seals the insulation device (1), and at least one epoxy flow channel (103) is arranged on the surface of the insulation device (1).

2. An aluminum-case dry film capacitor as claimed in claim 1, wherein: the bottom surface of the insulating device (1) is provided with at least one salient point (101), and the salient point (101) is pressed against the inner bottom surface of the aluminum shell (2).

3. An aluminum-case dry film capacitor as claimed in claim 1 or 2, wherein: the bottom surface of the insulating device (1) is provided with a rib position (104).

4. An aluminum-case dry film capacitor as claimed in claim 3, wherein: the rib positions (104) are in a straight shape or a cross shape.

5. An aluminum-case dry film capacitor as claimed in claim 1, wherein: and a gold spraying layer insulation protective layer (102) is arranged on the surface of the insulation device (1).

6. An aluminum-case dry film capacitor as claimed in claim 1, wherein: the insulation device (1) is a plastic housing.

7. An aluminum-case dry film capacitor as claimed in claim 1, wherein: and a space is reserved between the surface of the core (3) and the inner wall of the insulation device (1).