CN218826660U

CN218826660U - Capacitor module

Info

Publication number: CN218826660U
Application number: CN202222970228.6U
Authority: CN
Inventors: 谢志懋; 邬文彬
Original assignee: Foshan City Xinyuan Electronics Co ltd
Current assignee: Foshan City Xinyuan Electronics Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-04-07
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a capacitor module relates to capacitor module technical field, and its technical scheme is: including the PBT mould the shell, PBT moulds shell inner wall fixed mounting capacitor group, capacitor group includes a plurality of single capacitor, electric connection between the single capacitor, single capacitor is used for storage capacitance, single capacitor includes single face metallization organic film, single face metallization organic film inner wall fixed mounting insulating medium layer film, insulating medium layer film is provided with the three-layer, the three-layer alternate distribution has the aluminium foil electrode between the insulating medium layer film, the aluminium foil electrode is provided with two sets ofly, and is two sets of the aluminium foil electrode is anodal and negative pole respectively, the utility model discloses setting up single face metallization organic film, conveniently improving the use high voltage requirement of product, through the electric capacity with polypropylene film, thin-layer aluminium metal material production, small, the voltage is high, and degree of automation is high, and is with low costs, and the uniformity of product is high.

Description

Capacitor module

Technical Field

The utility model relates to a condenser module technical field, concretely relates to condenser module.

Background

The capacitor, generally referred to as capacitor for short, is one of the electronic components used in a large number of automotive electronic devices, and is widely applied to the aspects of isolating direct current, coupling, bypass, filtering, tuning loop, energy conversion, control and the like in automotive circuits.

The prior art has the following defects: capacitor module that uses among the current car circuit generally adopts conventional plate electrode bilateral symmetry to distribute, when striking or violent driving take place, structural strength is not enough, and antidetonation, compressive property are lower, and it is serious to appear generating heat easily, influences phenomenons such as life to probably lead to the car driving in-process to break down, influence the car safety of traveling.

Therefore, it is necessary to invent a capacitor module.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a capacitor module crosses and sets up single face metallization organic film, conveniently improves the use high voltage requirement of product, and through the electric capacity with polypropylene film, thin-layer aluminium metal material production, small, the voltage is high, and degree of automation is high, and is with low costs, and the uniformity of product is high to solve the problem in the background art.

In order to achieve the above object, the present invention provides the following technical solutions: the capacitor module comprises a PBT plastic shell, a capacitor bank is fixedly arranged on the inner wall of the PBT plastic shell, the capacitor bank comprises a plurality of single capacitors, the single capacitors are electrically connected and used for storing capacitance, each single capacitor comprises a single-side metalized organic film, an insulating medium layer film is fixedly arranged on the inner wall of the single-side metalized organic film, the insulating medium layer films are provided with three layers, aluminum foil electrodes are distributed among the three layers of insulating medium layer films at intervals, the aluminum foil electrodes are provided with two groups, the two groups of aluminum foil electrodes are respectively an anode and a cathode, and the single-side metalized organic film, the insulating medium layer film and the aluminum foil electrodes form an integrated structure through winding.

Preferably, the single-sided metalized organic film comprises a polypropylene film, the polypropylene film is used for insulating and isolating an aluminum foil electrode, and a thin aluminum layer is connected to the top of the polypropylene film through evaporation.

Preferably, the thin aluminum layer is used for conducting and storing electrons, a part of allowance is reserved at the edge of the single-side metallized organic film, the thin aluminum layer is not evaporated, and a soldering lug extends out of the edge of the thin aluminum layer.

Preferably, the aluminum foil electrodes are two groups, two groups of the aluminum foil electrodes are electrically connected with leads respectively, and the leads are electrically connected with the soldering lugs respectively.

Preferably, the outer wall of the PBT plastic shell is fixedly provided with a positive electrode lead and a negative electrode lead, and the positive electrode lead and the negative electrode lead are respectively and correspondingly electrically connected with the aluminum foil electrodes of the positive electrode and the negative electrode.

The utility model has the advantages that:

1. by arranging the PBT plastic shell, the compression resistance, fatigue resistance and high temperature resistance of the capacitor bank can be improved, so that the practicability and stability of the use of equipment are conveniently improved, the safety when the PBT plastic shell is applied to an automobile is conveniently improved, and the safety and stability of the use of automobile electronics are favorably improved;

2. the insulating medium layer film is arranged, so that the two aluminum foil electrodes can be insulated and isolated conveniently, and the electrical connection between the aluminum foil electrode of the positive electrode and the aluminum foil electrode of the negative electrode is avoided, so that the short circuit in the single capacitor is avoided, and the practicability and the safety of the use of equipment are improved;

3. through setting up single face metallization organic film, conveniently improve the use high voltage requirement of product, the withstand voltage who bears is high, and it is lower to generate heat, and factor of safety is higher, has satisfied the urgent demand in current new forms of energy market, has reached the optimization of condenser performance simultaneously, and through the electric capacity with polypropylene film, thin layer aluminium metal material production, small, the voltage is high, and degree of automation is high, and is with low costs, and the uniformity of product is high.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic cross-sectional structural view of a single capacitor provided by the present invention;

fig. 3 is a schematic side view of the single capacitor according to the present invention.

In the figure: the capacitor comprises a PBT plastic shell 100, a positive electrode lead 110, a negative electrode lead 120, a capacitor bank 200, a single capacitor 210, a single-sided metalized organic film 220, a polypropylene film 221, thin-layer aluminum metal 222, a soldering lug 223, an insulating dielectric layer film 240, an aluminum foil electrode 250 and a lead 251.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-3, the utility model provides a capacitor module, in order to realize above-mentioned purpose, the utility model provides a following technical scheme: the capacitor module comprises a PBT plastic shell 100, a capacitor bank 200 is fixedly arranged on the inner wall of the PBT plastic shell 100, the capacitor bank 200 comprises a plurality of single capacitors 210, the single capacitors 210 are electrically connected, the single capacitors 210 are used for storing capacitance, the single capacitors 210 comprise single-sided metalized organic films 220, insulating dielectric layer films 240 are fixedly arranged on the inner wall of the single-sided metalized organic films 220, the insulating dielectric layer films 240 are provided with three layers, aluminum foil electrodes 250 are alternately distributed among the three layers of insulating dielectric layer films 240, the aluminum foil electrodes 250 are provided with two groups, the two groups of aluminum foil electrodes 250 are respectively an anode and a cathode, the single-sided metalized organic films 220, the insulating dielectric layer films 240 and the aluminum foil electrodes 250 form an integrated structure through winding, particularly, the PBT plastic shell 100 has the effect of conveniently installing the capacitor bank 200, and the PBT plastic shell 100 has the convenient effect on the capacitor bank 200, the PBT plastic is a plastic formed by taking polybutylene terephthalate as a main body, has high mechanical property, high strength, fatigue resistance, stable size and small creep deformation, has the functions of high temperature resistance and good insulation effect, can improve the compression resistance, fatigue resistance and high temperature resistance of the capacitor bank 200 when the capacitor bank 200 is used on an automobile, thereby conveniently improving the practicability and stability of equipment use, conveniently improving the safety when the capacitor bank is applied to the automobile, and being beneficial to improving the safety and stability of automobile electronic use, the capacitor bank 200 is conveniently formed by electrically connecting the single capacitors 210, the requirement on a capacitor in a high-voltage circuit applied to automobile electronics is favorably met, and the high-voltage requirement of the capacitor bank 200 is improved, the single capacitors 210 are connected in a combined mode, the voltage and storage capacitance of the capacitor bank 200 are improved, the single-sided metalized organic film 220 is formed by evaporating a thin layer of aluminum metal on one side of a polypropylene film, certain margins are reserved on two sides of the polypropylene film respectively and are used as metal which is not evaporated on the margin, the insulating medium layer film 240 is formed by processing the polypropylene film and has the characteristic of bidirectional stretching, the mechanical performance and the working stability of the single-sided metalized organic film 220 and the insulating medium layer film 240 are improved conveniently, the insulating medium layer film 240 is arranged to insulate and isolate the two aluminum foil electrodes 250 conveniently, the electrical connection between the positive aluminum foil electrode 250 and the negative aluminum foil electrode 250 is avoided, the internal short circuit of the single capacitor 210 is avoided, the practicability and the safety of the device are improved, an integrated structure is formed by winding and winding between the single-sided metalized organic film 220, the insulating medium layer film 240 and the aluminum foil electrodes 250, the structural stability of the single capacitor 210 is improved conveniently, the structural strength when the single capacitor is used in an automobile circuit is improved, the anti-shock performance and the anti-impact performance of the automobile are improved in the use and the service life of the integrated structure is prolonged.

The single-sided metalized organic film 220 comprises a polypropylene film 221, the polypropylene film 221 is used for insulating and isolating aluminum foil electrodes 250, the top of the polypropylene film 221 is connected with a thin aluminum layer 222 in an evaporation way, the thin aluminum layer 222 is used for conducting and storing electrons, a part of the margin left at the edge of the single-sided metalized organic film 220 is not used for evaporating the thin aluminum layer 222, soldering lugs 223 extend out of the edge of the thin aluminum layer 222, two groups of aluminum foil electrodes 250 are arranged on the aluminum foil electrodes 250, the two groups of aluminum foil electrodes 250 are respectively and electrically connected with conducting wires 251, the two conducting wires 251 are respectively and electrically connected with the soldering lugs 223, a positive conducting wire 110 and a negative conducting wire 120 are fixedly arranged on the outer wall of the PBT plastic shell 100, the positive conducting wire 110 and the negative conducting wire 120 are respectively and electrically connected with the aluminum foil electrodes 250 of a positive electrode and a negative electrode correspondingly, and specifically, the polypropylene film 221 is made of a polypropylene film, is by the polypropylene granule after crowded formation sheet altogether, again through the drawing of two directions of moving about freely and quickly and make, it has the convenient insulating effect that improves through setting up polypropylene film 221, thereby the effect that polypropylene film 221 was punctured when avoiding capacitor bank 200 to use in car high voltage circuit, thereby the stability when capacitor bank 200 used has conveniently been improved, thereby make things convenient for the structural strength and the life that improve equipment used, the life of equipment has been improved and the automobile service failure rate is reduced, it does not do the effect that coating by vaporization thin layer aluminium metal 222 to reserve partial surplus through setting up single face metallization organic film 220 edge has the convenient soldering lug 223 of connecting effect, use through setting up two aluminium foil electrodes 250 cooperations, the effect of conveniently carrying out charge and discharge has, wire 251 has electron-transporting's effect.

The utility model discloses a use as follows: when the capacitor module is used, a thin aluminum layer 222 is evaporated on the top of a polypropylene film 221, a certain margin is left on the left side and the right side of the polypropylene film 221 respectively and is used as a margin for non-evaporation of the thin aluminum layer 222, a soldering lug 223 is led out from the edge to form a single-sided metalized organic film 220 in a combined mode, three layers of insulating dielectric layer films 240 are taken out, two aluminum foil electrodes 250 are placed between the insulating dielectric layer films 240 at intervals respectively, so that the two aluminum foil electrodes 250 are isolated, the two aluminum foil electrodes 250 of a positive electrode and a negative electrode are subjected to insulation treatment, the two aluminum foil electrodes 250 are fixedly connected with a lead 251 respectively to form a single capacitor 210 in a combined mode, then a plurality of single capacitors 210 are electrically connected in a series or parallel mode to form the capacitor bank 200, the capacitor bank 200 is packaged in a PBT plastic case 100, the two leads 251 of the positive electrode and the negative electrode are electrically connected with a positive lead 110 and a negative lead 120 respectively to form a capacitor module used in an automobile circuit, and the capacitor module is connected to the automobile circuit for use.

The above is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of protection claimed by the present invention as far as possible.

Claims

1. Capacitor module, including PBT moulds shell (100), PBT moulds shell (100) inner wall fixed mounting capacitor bank (200), its characterized in that: the capacitor bank (200) comprises a plurality of single capacitors (210), the single capacitors (210) are electrically connected with one another, the single capacitors (210) are used for storing capacitance, the single capacitors (210) comprise single-side metalized organic films (220), insulating medium layer films (240) are fixedly mounted on the inner walls of the single-side metalized organic films (220), the insulating medium layer films (240) are provided with three layers, aluminum foil electrodes (250) are distributed among the insulating medium layer films (240) at intervals, the aluminum foil electrodes (250) are provided with two groups, the two groups of aluminum foil electrodes (250) are respectively an anode and a cathode, and the single-side metalized organic films (220), the insulating medium layer films (240) and the aluminum foil electrodes (250) form an integrated structure through winding.

2. The capacitor module according to claim 1, characterized in that the single-sided metallized organic film (220) comprises a polypropylene film (221), the polypropylene film (221) is used for insulating and isolating the aluminum foil electrode (250), and a thin aluminum connection layer (222) is evaporated on top of the polypropylene film (221).

3. The capacitor module according to claim 2, wherein the thin aluminum metal (222) is used for conductive storage of electrons, a portion of the margin at the edge of the single-sided metalized organic film (220) is left without evaporation of the thin aluminum metal (222), and a solder tab (223) extends from the edge of the thin aluminum metal (222).

4. The capacitor module according to claim 3, wherein there are two sets of the aluminum foil electrodes (250), the two sets of the aluminum foil electrodes (250) are electrically connected with leads (251), and the two leads (251) are electrically connected with soldering pads (223).

5. The capacitor module according to claim 4, wherein the positive lead (110) and the negative lead (120) are fixedly mounted on the outer wall of the PBT plastic shell (100), and the positive lead (110) and the negative lead (120) are respectively and correspondingly electrically connected with the aluminum foil electrodes (250) of the positive electrode and the negative electrode.