CN211455543U

CN211455543U - Combined box type capacitor

Info

Publication number: CN211455543U
Application number: CN202020333368.0U
Authority: CN
Inventors: 夏德清
Original assignee: Guangdong Jurcc Electronics Co ltd
Current assignee: Guangdong Jurcc Electronics Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-09-08
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a modular box-type capacitor, including shell, capacitor core and lead wire, the capacitor core is formed by the range upon range of convoluteing of metallized film, the capacitor core is placed in the shell, the lead wire is connected with the capacitor core, the shell intussuseption is filled with epoxy, the capacitor core comprises first sheet metal thin layer, second sheet metal thin layer, first sheet of light membrane, second sheet of light membrane, first sheet of metal thin layer and second sheet metal thin layer set up relatively and form first electrode, first sheet of light membrane and second sheet of light membrane set up relatively and form the second electrode, and be equipped with first aluminium foil, second aluminium foil between first sheet of light membrane and the second sheet of light membrane. The utility model discloses a convolute for the core at metallized film and the compound aluminium foil combination of bright membrane to have self-healing performance function than traditional aluminium foil capacitor, reduce high frequency loss, can bear bigger voltage and electric current surge and strike.

Description

Combined box type capacitor

Technical Field

The utility model relates to a condenser technical field specifically is a modular box-type condenser.

Background

A capacitor, commonly referred to simply as a capacitor, is a device that holds a charge, denoted by the letter C. The capacitor is one of the electronic components widely used in electronic devices, and is widely used in dc blocking, coupling, bypassing, filtering, tuning loop, energy conversion, control circuit, etc., and a capacitor is formed between any two conductors (including wires) which are insulated and closely spaced from each other.

With the development of the technical level, the upgrading period of a plurality of industries such as electronics, household appliances, communication and the like is shorter and shorter, and the box-type capacitor is widely applied to various electronic and electrical products by virtue of good electrical properties and working reliability of the box-type capacitor, so that the box-type capacitor becomes an indispensable electronic element for promoting the upgrading of the industries. At present, the traditional capacitor on the market has large volume, poor self-healing performance and large high-frequency loss.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular box capacitor to solve the self-healing performance function difference that proposes in the above-mentioned background art, it is bulky, problem that the high frequency loss is big.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a modular box capacitor, includes shell, capacitor core and lead wire, the capacitor core is formed by the range upon range of winding of metallized film, the capacitor core is placed in the shell, the lead wire is connected with the capacitor core, the shell intussuseption is filled with epoxy, the capacitor core comprises first metal thin film layer, second metal thin film layer, first light membrane, second light membrane, first metal thin film layer and second metal thin film layer set up relatively and form first electrode, first light membrane and second light membrane set up relatively and form the second electrode, and be equipped with first aluminium foil, second aluminium foil between first light membrane and the second light membrane.

Specifically, the first aluminum foil and the second aluminum foil are arranged side by side, and an insulating tape is arranged between the first aluminum foil and the second aluminum foil.

Specifically, the metal film layer is a low-sheet-resistance metal aluminum evaporation coating.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts the metal aluminum material evaporation coating with ultra-small sheet resistance as the metallized film and the light film composite aluminum foil combined winding as the core, which is mainly applied to LCC and LLC circuits and various high-frequency high-pressure absorption loops, thereby having the self-healing performance function compared with the traditional aluminum foil capacitor; volume contrast reduces more than 10%, effectively reduces high frequency loss on same than traditional aluminium foil capacitor performance, can bear bigger voltage and current surge and strike, and the internal loss is generated heat and is reduced, effectively promotes the efficiency of power and reduces the energy loss of power.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a schematic view of the metal thin film structure of the present invention.

In the figure: 1. a housing; 2. an epoxy resin; 3. a core; 301. a core fastening part; 4. spraying a gold layer; 401. a gold-sprayed layer buckling part; 5. a lead wire; 601. a first metal film; 602. a second metal film; 603. a first sheet of optical film; 604. aluminum foil; 605 a second aluminum foil; 606 a second tensioned film; 611 a first metal film plating layer 621 a second metal film plating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment:

a combined box-type capacitor comprises a shell 1, a capacitor core 3 and a lead 5, wherein the capacitor core 3 is formed by winding a metalized film layer 6 in a stacking mode, the capacitor core 3 is placed in the shell, the lead 5 is connected with the capacitor core 3, epoxy resin 2 is filled in the shell 1, the capacitor core 3 is composed of a first metal film layer 601, a second metal film layer 602, a first light film 603 and a second light film 606, the first metal film layer 611 and the second metal film layer 621 are oppositely arranged to form a first electrode, the first light film 603 and the second light film 606 form a second electrode, and a first aluminum foil 604 and a second aluminum foil 605 are arranged between the first light film 603 and the second light film 606. The first aluminum foil 604 and the second aluminum foil 605 are arranged side by side, and an insulating tape is disposed between the first aluminum foil 604 and the second aluminum foil 605. The metal film layer 6 is a low-sheet-resistance metal aluminum evaporation coating.

Specifically, the both ends of core 3 are provided with core buckling parts 301, and the both ends of core 3 are connected with spouts gold layer 4, and spout the inboard of gold layer 4 and be provided with the spout gold layer buckling parts 401 with the mutual lock of core buckling parts 301, spout gold layer buckling parts 401 and be the wave arch. The contact area between the end part of the core 3 and the gold spraying layer 4 is increased through the wavy bulge, so that the stability of high-current impact is ensured.

The product is upgraded and modified on the basis of the MPP81S-BOX capacitor, and the performance of the product is more stable and reliable; winding a metallized film and an optical film composite aluminum foil as a core; a box type capacitor is packaged by a PBT plastic shell and is packaged by epoxy resin. The metalized film of the embodiment adopts the evaporation coating made of the metal aluminum material with ultra-small sheet resistance, so that the metalized film has a self-healing performance function compared with the traditional aluminum foil capacitor; volume contrast reduces more than 10%, effectively reduces high frequency loss on same than traditional aluminium foil capacitor performance, can bear bigger voltage and current surge and strike, and the internal loss is generated heat and is reduced, effectively promotes the efficiency of power and reduces the energy loss of power.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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.

Claims

1. The utility model provides a modular box-type capacitor, includes shell, capacitor core and lead wire, the capacitor core is formed by the range upon range of winding of metallized film, the capacitor core is placed in the shell, the lead wire is connected with the capacitor core, the shell intussuseption is filled with epoxy, its characterized in that: the capacitor core comprises a first metal thin film layer, a second metal thin film layer, a first light film and a second light film, wherein the first metal thin film layer and the second metal thin film layer are oppositely arranged to form a first electrode, the first light film and the second light film are oppositely arranged to form a second electrode, and a first aluminum foil and a second aluminum foil are arranged between the first light film and the second light film.

2. The combined cassette capacitor as claimed in claim 1, wherein: the first aluminum foil and the second aluminum foil are arranged side by side, and an insulating tape is arranged between the first aluminum foil and the second aluminum foil.

3. The combined cassette capacitor as claimed in claim 1, wherein: the metal thin film layer is a low-sheet-resistance metal aluminum evaporation coating.

4. A combined cassette capacitor as claimed in any one of claims 1 to 3, wherein: the both ends of core are provided with the core buckling parts, and the both ends of core are connected with spouts the gold layer, and spout the inboard of gold layer and be provided with the spraying gold layer buckling parts of the mutual lock of core buckling parts, spout gold layer buckling parts arch.