CN218849284U

CN218849284U - Parallel-serial thin film capacitor

Info

Publication number: CN218849284U
Application number: CN202222851630.2U
Authority: CN
Inventors: 胡忠胜; 章瑞; 毛彬彬; 吕锡春; 裘伟
Original assignee: Anhui Feida Electrical Technology Co ltd
Current assignee: Anhui Feida Electrical Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-11
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a film capacitor is connected in parallel and in series, including casing, the parallelly connected core group of multiunit, framework, end cover, the framework is accomodate and is cut apart into a plurality of accommodation space in the casing in and with the casing, and the one-to-one adaptation is accomodate in a plurality of accommodation space after a plurality of cores that core group contained are established ties, and two interior wiring ends that arbitrary core group was drawn forth are connected with two interior wiring ends of another core group respectively, and two interior wiring ends of one of which core group are connected with two external connection ends of installing on the end cover respectively are connected, the utility model discloses a film capacitor is connected in parallel and series, the core group of parallel arrangement and a plurality of cores that the series connection was arranged in the core group can also improve the pressure resistance of condenser when improving the condenser capacity. The capacitor is more convenient and rapid to assemble due to the arrangement of the first carrier plate, the second carrier plate, the first electric connecting piece, the second electric connecting piece and the third electric connecting piece, and the assembling efficiency of the capacitor is improved.

Description

Parallel-serial thin film capacitor

Technical Field

The utility model relates to a parallel-serial film capacitor technical field especially relates to a parallel-serial film capacitor.

Background

Chinese utility model patent with publication number CN201936746U discloses a multi-string polypropylene film capacitor, which is formed by stacking two layers of conductive polypropylene films and rolling into a cylinder, wherein the conductive polypropylene films comprise a conductive film and a polypropylene film, the conductive film is adhered to the polypropylene film in a segmented manner, and the conductive film of the upper layer of conductive polypropylene film is opposite to the conductive film of the lower layer of conductive polypropylene film in a staggered manner. The utility model discloses a middle part electrode forms inside series structure with a plurality of condenser series connection modes, makes the condenser have very high withstand voltage ability.

The inventor considers that the utility model has the following defects: the capacitor is difficult to be applied to large-capacity electronic products, and a plurality of capacitors are connected in series one by one through leads, so that the assembly time is long, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

For solving the prior art problem that exists among the background art, the utility model provides a parallel-serial film capacitor.

The utility model provides a pair of parallel-serial film capacitor, which comprises a housin, the parallelly connected core group of multiunit, the framework, the end cover, the framework is accomodate in the casing and is cut apart into a plurality of accommodation space with the casing, the one-to-one adaptation is accomodate in a plurality of accommodation space after a plurality of cores that core group contained are established ties, two interior wiring ends that arbitrary core group was drawn forth are connected with two interior wiring ends of another core group respectively, and two interior wiring ends of one of which core group are connected with two external connection ends electricity of installing on the end cover respectively, the fixed lid of end cover adaptation closes on the open-top of casing and organizes the framework and core and encapsulate in the casing.

Preferably, the core group further comprises a first carrier plate and a plurality of first electric connecting pieces, a plurality of first groove bodies are formed in the first carrier plate, the plurality of first electric connecting pieces are embedded in the plurality of first groove bodies in a one-to-one correspondence mode, first wiring ends of the plurality of cores in the core group face the opening of the shell, and first wiring ends of two partially adjacent cores are inserted into the first groove bodies in the first carrier plate and are in electric contact with the first electric connecting pieces.

Preferably, the core group further comprises a second carrier plate and a plurality of second electric connecting pieces, a plurality of second groove bodies are formed in the second carrier plate, the plurality of second electric connecting pieces are embedded in the second groove bodies in a one-to-one correspondence manner, second wiring ends of the plurality of cores in the core group face the inner bottom wall of the shell, and second wiring ends of two partially adjacent cores are inserted into the second groove bodies in the second carrier plate and are electrically contacted with the second electric connecting pieces so as to realize series connection of the plurality of cores.

Preferably, the first carrier plate and the second carrier plate are provided with two third grooves, third electric connecting pieces are embedded in the two third grooves, two inner connecting ends led out after the cores in the core group are connected in series are respectively inserted into the two third grooves and electrically contacted with the third electric connecting pieces, the two third electric connecting pieces in any core group are electrically connected with the two third electric connecting pieces in another core group to realize parallel electric connecting pieces of multiple core groups, and the two outer connecting ends in any core group are electrically connected with the two outer connecting ends on the end covers.

Preferably, fastening bolts are sleeved in the first carrier plate and the second carrier plate in a spiral mode, and threaded holes matched with the fastening bolts are formed in the frame body.

Preferably, the shell is filled with high-temperature-resistant epoxy resin.

Preferably, the core body is made of an aluminum-zinc thickened metalized polypropylene film material member.

The utility model discloses in the pressure-resistant performance that a plurality of cores that the parallel connection arranged core group and core group internal series connection arranged that proposed is put forward can also improve the condenser when improving the condenser capacity.

The utility model provides a parallel-serial film capacitor when the subassembly in the assembly condenser, directly arrange first support plate and second support plate on the both ends line of a plurality of cores of core group is served to the both ends line to make wiring end and first electric connector or second electric connector electrical contact, thereby can directly establish ties a plurality of cores, need not weld alone to the core and connect another core, make the assembly simple and convenient more swift of condenser, improved the assembly efficiency of condenser.

The utility model discloses in the parallel serial film capacitor who proposes, two wiring ends that core group drawn forth are connected with two third electric connector electricity respectively, can accomplish parallelly connected between the core group when assembling a plurality of cores of multiunit core group between first support plate and second support plate.

Drawings

Fig. 1 is a front sectional view of an overall structure of a parallel-serial thin film capacitor according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a top sectional view of a parallel-serial thin film capacitor according to the present invention;

fig. 4 is a bottom sectional view of a parallel-serial thin film capacitor according to the present invention;

fig. 5 is a schematic perspective view of a first carrier plate when the number of core bodies in the core body group is two;

fig. 6 is a schematic perspective view of a second carrier plate when the number of core bodies in the core body group is two.

Detailed Description

Referring to fig. 1, the utility model provides a parallel-serial film capacitor, which comprises a housin 1, multiunit parallel core group 2, framework 3, end cover 4, framework 3 is accomodate in casing 1 and is cut apart into a plurality of accommodation space in with casing 1, a plurality of cores 21 that core group 2 contained establish ties the back one-to-one adaptation and accomodate in a plurality of accommodation space, two interior terminals that arbitrary core group 2 was drawn forth are connected with two interior terminals electricity of another core group 2 respectively, and two interior terminals of one of which core group 2 are connected with two external connection terminal 7 electricity installed on end cover 4 respectively, the fixed lid of end cover 4 adaptation closes on casing 1's open-top and with framework 3 and core group 2 encapsulation in casing 1.

In the present embodiment, the plurality of cores 21 in the core group 2 are connected in series to improve the voltage resistance of the capacitor, and the parallel core group 2 can improve the capacity of the capacitor.

In order to realize the electrical connection between the cores 21, a wire is generally soldered between the terminals of the cores 21, and the terminals of each core 21 need to be soldered, which is troublesome, and thus the assembly efficiency of the core assembly 2 is low.

Referring to fig. 1 to 4, in a further embodiment, in order to improve the assembly efficiency of the core group 2, the core group 2 further includes a first carrier 22 and a plurality of first electrical connectors 23, the first carrier 22 is provided with a plurality of first slots 221, the plurality of first electrical connectors 23 are embedded in the plurality of first slots 221 in a one-to-one correspondence manner, first terminals of a plurality of cores 21 in the core group 2 are all opened toward the housing 1, and first terminals of two partially adjacent cores 21 are inserted into the first slots 221 on the first carrier 22 and are all in electrical contact with the first electrical connectors 23.

In order to further improve the assembly efficiency of the serial connection among the cores 21 in the core group 2, in this embodiment, the core group 2 further includes a second carrier 24 and a plurality of second electrical connectors 25, the second carrier 24 is provided with a plurality of second grooves 241, the plurality of second electrical connectors 25 are embedded in the second grooves 241 in a one-to-one correspondence manner, the second terminals of the plurality of cores 21 in the core group 2 all face the inner bottom wall of the housing 1, and the second terminals of two partially adjacent cores 21 are inserted into the second grooves 241 on the second carrier 24 and all electrically contact the second electrical connectors 25 to realize the serial connection of the plurality of cores 21.

In this embodiment, before the core group 2 is placed in the housing 1, the first carrier plate 22 and the second carrier plate 24 are respectively mounted on two sets of terminals of the plurality of cores 21 in the core group 2, and when the terminals on the cores 21 are electrically contacted with the first electrical connector 23 and the second electrical connector 25, the two adjacent cores 21 can be electrically connected, and the serial connection of the plurality of cores can be completed in the assembling process, and the plurality of cores 21 do not need to be welded one by one to be connected in series, so that the assembling efficiency of the capacitor is improved.

In order to improve the parallel assembly efficiency between the plurality of core groups 2, two third grooves 222 are formed in the first carrier plate 22 and the second carrier plate 24, third electric connecting pieces 5 are embedded in the two third grooves 222, two inner connecting ends led out after the plurality of cores 21 in the core groups 2 are connected in series are respectively inserted into the two third grooves 222 and are electrically contacted with the third electric connecting pieces 5, the two third electric connecting pieces 5 in any core group 2 are electrically connected with the two third electric connecting pieces 5 in another core group 2 to realize the parallel connection of the plurality of core groups 2, and the two third electric connecting pieces 5 in any core group 2 are electrically connected with the two outer terminals 7 on the end cover 4.

It should be noted that, when the number of core bodies in the core body group 2 is singular, two third slot bodies 222 are respectively opened on the first carrier plate 22 and the second carrier plate 24.

Referring to fig. 5 and 6, when the number of cores in the core group 2 is a double number, two third grooves 222 are formed in the first carrier plate 22, and the plurality of third electrical connectors 5 in the plurality of core groups 2 are electrically connected to each other, when the plurality of first carrier plates 22 and the plurality of second carrier plates 24 are mounted on the cores 21 in the plurality of core groups 2, parallel connection between the plurality of core groups 2 is simultaneously achieved, and mounting between the plurality of core groups 2 is more convenient.

In the above embodiment, the core 21 is made of an aluminum-zinc thickened metallized polypropylene film material.

For fixed connection first carrier 22, second carrier 24 and framework 3, avoid the wiring end and the electric connector separation of core 21, all the spiral cover has fastening bolt 6 in first carrier 22 and second carrier 24, offer the screw hole with fastening bolt 6 adaptation on the framework 3.

In the above embodiment, the housing 1 is filled with high temperature epoxy resin.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A parallel-serial thin film capacitor, comprising: casing (1), the parallelly connected core group of multiunit (2), framework (3), end cover (4), framework (3) are accomodate and are cut apart into a plurality of accommodation space in casing (1), a plurality of cores (21) that core group (2) contained are established ties the back one-to-one adaptation and are accomodate in a plurality of accommodation space, two interior wiring ends that arbitrary core group (2) were drawn forth are connected with two interior wiring ends electricity of another core group (2) respectively, and two interior wiring ends of one of them core group (2) are connected with two outer wiring end (7) electricity of installing on end cover (4) respectively, end cover (4) adaptation is fixed to be covered on the open-top of casing (1) and with framework (3) and core group (2) encapsulation in casing (1).

2. The parallel-serial thin film capacitor of claim 1, wherein the core group (2) further comprises a first carrier plate (22) and a plurality of first electrical connectors (23), the first carrier plate (22) is provided with a plurality of first slots (221), the plurality of first electrical connectors (23) are embedded in the plurality of first slots (221) in a one-to-one correspondence manner, first terminals of the plurality of cores (21) in the core group (2) are all open towards the case (1), and the first terminals of two partially adjacent cores (21) are inserted into the first slots (221) in the first carrier plate (22) and are all in electrical contact with the first electrical connectors (23).

3. The parallel-serial film capacitor as claimed in claim 2, wherein the core group (2) further comprises a second carrier plate (24) and a plurality of second electrical connectors (25), the second carrier plate (24) is provided with a plurality of second slots (241), the plurality of second electrical connectors (25) are embedded in the second slots (241) in a one-to-one correspondence manner, the second terminals of the plurality of cores (21) in the core group (2) face the inner bottom wall of the case (1), and the second terminals of two partially adjacent cores (21) are inserted into the second slots (241) in the second carrier plate (24) and are electrically contacted with the second electrical connectors (25) to realize serial connection of the plurality of cores (21).

4. The parallel-serial thin film capacitor as claimed in claim 3, wherein the first carrier (22) and the second carrier (24) are provided with two third slots (222) in common, and third electrical connectors (5) are embedded in the two third slots (222), two inner terminals led out after the plurality of cores (21) in the core group (2) are connected in series are respectively inserted into the two third slots (222) and electrically contacted with the third electrical connectors (5), the two third electrical connectors (5) in any core group (2) are electrically connected with the two third electrical connectors (5) in another core group (2) to realize parallel connection of the plurality of core groups (2), and the two third electrical connectors (5) in any core group (2) are electrically connected with the two outer terminals (7) on the end cover (4).

5. The parallel-serial film capacitor of claim 3, wherein the first carrier plate (22) and the second carrier plate (24) are both spirally sleeved with fastening bolts (6), and the frame body (3) is provided with threaded holes adapted to the fastening bolts (6).

6. The parallel-to-serial film capacitor of claim 1 wherein the core (21) is formed of an aluminum-zinc thickened metallized polypropylene film.

7. The parallel-serial film capacitor of claim 1, wherein the housing (1) is potted with a high temperature epoxy resin.