CN216671400U

CN216671400U - Capacitance film for producing laminated capacitor

Info

Publication number: CN216671400U
Application number: CN202122978746.8U
Authority: CN
Inventors: 汪祥久; 杨启忠; 周兵; 陈占龙
Original assignee: KUNSHAN HONGDIAN LONGTAI ELECTRONIC MATERIAL CO LTD
Current assignee: KUNSHAN HONGDIAN LONGTAI ELECTRONIC MATERIAL CO LTD
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-03
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a capacitor film for producing a laminated capacitor, which comprises a core, wherein the outer surface of the core is wrapped with a first polypropylene film, the upper surface of the first polypropylene film is provided with a main graphene coating, the surface of the first polypropylene film is provided with an anode aluminum foil, the surface of the anode aluminum foil is provided with an anode cushion block, two sides of the bottom end of the anode cushion block are both provided with main cushion pins, the top end of the anode cushion block is provided with an anode pin, the surface of the anode aluminum foil is provided with a second polypropylene film, the surface of the second polypropylene film is provided with an auxiliary graphene coating, and the surface of the auxiliary graphene coating is provided with a cathode aluminum foil. The capacitor thin film structure is convenient for workers to assemble the capacitor thin film, so that heat can be transferred and circulated more quickly, the heat dissipation performance of the capacitor thin film is effectively improved, and the capacitor thin film structure is high in insulation resistance, low in loss and suitable for high-current application.

Description

Capacitance film for producing laminated capacitor

Technical Field

The utility model relates to the technical field of capacitor films, in particular to a capacitor film for producing a laminated capacitor.

Background

A film capacitor is a capacitor using a plastic film as a dielectric, and is a type in which paper impregnated with oil or paraffin is inserted into an aluminum foil and wound into a roll, and metal foil is directly deposited on the paper and wound into a roll instead of the metal foil, and is called an MP capacitor, and since it has high insulation resistance and excellent reliability, it is used in home appliances, vehicle-mounted electronic devices, industrial devices, power electronic devices, and the like, and a capacitor film of the capacitor plays a crucial role in performance.

This type of electric capacity film on the market is various today, can satisfy people's user demand basically, but still has certain weak point, and current this type of electric capacity film uses plastic film as the dielectric, and its film can give off the heat when film capacitor uses, because the radiating effect of self is relatively poor, leads to the condenser to produce high temperature, damages the film to electrode pin on the current electric capacity film is wasted time and energy when the installation, has brought the inconvenience for staff's assembly work.

SUMMERY OF THE UTILITY MODEL

The present invention provides a capacitor film for producing a stacked capacitor, so as to solve the problems of poor heat dissipation effect of the capacitor film and inconvenient installation of electrode pins in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a capacitance film for producing range-type condenser, includes the core, the surface coating of core has first polypropylene film, the upper surface of first polypropylene film is provided with main graphene coating, the surface mounting of first polypropylene film has anodal aluminium foil, the surface mounting of anodal aluminium foil has anodal cushion, main pad foot is all installed to the both sides of anodal cushion bottom, anodal pin is installed on the top of anodal cushion, the surface mounting of anodal aluminium foil has second polypropylene film, just the surface of second polypropylene film is provided with vice graphene coating, the surface mounting of second polypropylene film has the negative pole aluminium foil, the surface mounting of negative pole aluminium foil has vice utmost point cushion, just negative pole pin is installed on the top of vice utmost point cushion.

Preferably, a heat radiating fin is arranged at the interlayer of the positive aluminum foil and the second polypropylene film, and a heat radiating hole is formed in the surface of the heat radiating fin.

Preferably, the positive cushion block and the negative cushion block have the same structure.

Preferably, the surface of the second polypropylene film is provided with a bump, and the cross section of the bump is circular.

Preferably, an inner sleeve is arranged inside the auxiliary pole cushion block, a limiting groove is formed inside the inner sleeve, and four groups of limiting grooves are formed in the limiting groove.

Preferably, the two sides of the bottom end of the auxiliary pole cushion block are provided with two sets of auxiliary cushion feet, and the two sets of auxiliary cushion feet are in a symmetrical structure relative to the central line of the auxiliary pole cushion block.

Preferably, the surface of the auxiliary pole cushion block is provided with through holes at equal intervals, the cross section of each through hole is circular, and the diameter of each through hole is larger than that of each bump.

Preferably, the peripheral face of negative pole pin is fixed with the conducting strip, just the conducting strip is provided with four groups, conducting strip and spacing groove sliding fit each other.

Preferably, the heat sink is a rectangular aluminum film.

Compared with the prior art, the utility model has the beneficial effects that: the capacitor film for producing the laminated capacitor is convenient for workers to assemble the capacitor film, so that heat can be transferred and circulated more quickly, the heat dissipation performance of the capacitor film is effectively improved, and the film is high in insulation resistance, low in loss and suitable for high-current application;

(1) the auxiliary pole cushion block, the negative pole pin and the like are arranged, the auxiliary pole cushion block is placed on the negative pole aluminum foil, the auxiliary pole cushion block is buckled on the convex block, and then the negative pole pin is inserted into the auxiliary pole cushion block, so that four groups of conducting bars on the peripheral surface of the negative pole pin are aligned with four groups of limiting grooves in the inner sleeve until the negative pole pin is completely pushed into the auxiliary pole cushion block, and then the installation work of a related electrode assembly is completed, and the assembly work of a capacitor film is convenient for workers;

(2) by arranging the negative aluminum foil, the auxiliary graphene coating and the like, the negative aluminum foil, the second polypropylene film, the positive aluminum foil and the main graphene coating are sequentially stacked and wound, gaps among the film layers can enable heat generated by the films to be transferred and circulated, the heat sink enables the heat to be rapidly transferred to the outside of the capacitor, the auxiliary graphene coating and the main graphene coating play a role in heat conduction, and the heat dissipation performance of the capacitor film is effectively improved;

(3) the first polypropylene film and the second polypropylene film are arranged and used as the dielectric film substrate, so that the capacitor film is high in insulation resistance, low in loss and applicable to high-current application.

Drawings

FIG. 1 is a schematic view of the expanded structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3 according to the present invention;

FIG. 5 is a schematic top view of the heat sink of the present invention;

in the figure: 1. a core; 2. a first polypropylene film; 3. a main graphene coating; 4. a positive aluminum foil; 5. a positive cushion block; 6. a main foot pad; 7. a positive electrode pin; 8. a second polypropylene film; 9. a secondary graphene coating; 10. a negative aluminum foil; 11. a secondary cushion block; 1101. an inner sleeve; 1102. a limiting groove; 12. auxiliary foot pads; 13. a through hole; 14. a bump; 15. a negative electrode pin; 1501. conducting bars; 16. a heat sink; 1601. and (4) heat dissipation holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a capacitor film for producing a laminated capacitor comprises a core 1, wherein the outer surface of the core 1 is wrapped by a first polypropylene film 2, the upper surface of the first polypropylene film 2 is provided with a main graphene coating 3, the surface of the first polypropylene film 2 is provided with an anode aluminum foil 4, the surface of the anode aluminum foil 4 is provided with an anode cushion block 5, the two sides of the bottom end of the anode cushion block 5 are both provided with main cushion pins 6, the top end of the anode cushion block 5 is provided with an anode pin 7, the surface of the anode aluminum foil 4 is provided with a second polypropylene film 8, the surface of the second polypropylene film 8 is provided with a lug 14, the cross section of the lug 14 is circular, the surface of the second polypropylene film 8 is provided with an auxiliary graphene coating 9, the wound film is provided with a certain gap due to the arrangement of the auxiliary cushion pins 12 and the main cushion pins 6, and heat generated by the film in the process can be transferred and circulated, the auxiliary graphene coating 9 and the main graphene coating 3 play a role in heat conduction, and the heat dissipation performance of the capacitor film is effectively improved;

a heat radiating fin 16 is arranged at the interlayer of the positive aluminum foil 4 and the second polypropylene film 8, a heat radiating hole 1601 is formed in the surface of the heat radiating fin 16, and the heat radiating fin 16 is a rectangular aluminum film;

the heat dissipation fins 16 are arranged at the interlayer of the second polypropylene film 8 and the positive aluminum foil 4, so that heat is rapidly transferred to the outside of the capacitor, and the heat dissipation holes 1601 play a role in air circulation;

a negative aluminum foil 10 is arranged on the surface of the second polypropylene film 8, an auxiliary cushion block 11 is arranged on the surface of the negative aluminum foil 10, and the auxiliary cushion block 11 can be placed on the negative aluminum foil 10;

two sides of the bottom end of the auxiliary pole cushion block 11 are provided with two groups of auxiliary cushion feet 12, the two groups of auxiliary cushion feet 12 are in a symmetrical structure relative to the center line of the auxiliary pole cushion block 11, an inner sleeve 1101 is arranged inside the auxiliary pole cushion block 11, a limiting groove 1102 is formed inside the inner sleeve 1101, and the four groups of limiting grooves 1102 are arranged in the limiting groove 1102;

the first polypropylene film 2 and the second polypropylene film 8 are used as dielectric film substrates, so that the capacitor film has high insulation resistance and low loss, and can be suitable for high-current application;

the surface of the auxiliary pole cushion block 11 is provided with through holes 13 at equal intervals, the cross section of each through hole 13 is circular, and the diameter of each through hole 13 is larger than that of each bump 14;

aligning a plurality of groups of through holes 13 on the surface of the auxiliary pole cushion block 11 with a plurality of groups of convex blocks 14 on the second polypropylene film 8 and the negative aluminum foil 10, and buckling the auxiliary pole cushion block 11 on the convex blocks 14;

the positive cushion block 5 and the auxiliary cushion block 11 have the same structure, a negative pin 15 is mounted at the top end of the auxiliary cushion block 11, guide bars 1501 are fixed on the outer peripheral surface of the negative pin 15, four groups of the guide bars 1501 are arranged, and the guide bars 1501 are in sliding fit with the limiting grooves 1102;

the negative electrode pin 15 is inserted into the auxiliary electrode pad 11, so that the four sets of conducting bars 1501 on the outer peripheral surface of the negative electrode pin 15 and the four sets of limiting grooves 1102 inside the inner sleeve 1101 are aligned with each other until the negative electrode pin 15 is completely pushed into the auxiliary electrode pad 11, and the work of the related electrode assembly is completed.

When the capacitor assembly is used, firstly, the auxiliary pole cushion block 11 is placed on the negative pole aluminum foil 10, at the moment, a plurality of groups of through holes 13 on the surface of the auxiliary pole cushion block 11 are aligned with a plurality of groups of lugs 14 on the second polypropylene film 8 and the negative pole aluminum foil 10, the auxiliary pole cushion block 11 is buckled on the lugs 14, then, the negative pole pin 15 is inserted into the auxiliary pole cushion block 11, four groups of guide strips 1501 on the outer peripheral surface of the negative pole pin 15 are aligned with four groups of limiting grooves 1102 in the inner sleeve 1101 until the negative pole pin 15 is completely pushed into the auxiliary pole cushion block 11, so that the work of the related electrode assembly is completed, the operation is rapid and convenient, the assembly work of the capacitor film is convenient for workers, the negative pole aluminum foil 10, the second polypropylene film 8, the positive pole aluminum foil 4 and the main graphene coating 3 are sequentially stacked and wound on the core 1, and the wound films are formed by the auxiliary cushion block 12 and the main cushion 6, a certain gap is reserved between every two films, heat generated by the films in the process can be transferred and circulated, radiating fins 16 are arranged at the interlayer of the second polypropylene film 8 and the anode aluminum foil 4, heat can be rapidly transferred to the outside of the capacitor, the radiating holes 1601 have the function of air circulation, the auxiliary graphene coating 9 and the main graphene coating 3 have the function of heat conduction, the heat dissipation performance of the capacitor films is effectively improved, the first polypropylene film 2 and the second polypropylene film 8 are adopted as dielectric film substrates, the insulation resistance of the capacitor films is high, the loss is low, and the capacitor films are suitable for high-current application.

Claims

1. A capacitor film for producing a laminated capacitor, characterized in that: the composite material packaging structure comprises a core (1), wherein the outer surface of the core (1) is wrapped by a first polypropylene film (2), the upper surface of the first polypropylene film (2) is provided with a main graphene coating (3), the surface of the first polypropylene film (2) is provided with an anode aluminum foil (4), the surface of the anode aluminum foil (4) is provided with an anode cushion block (5), main cushion feet (6) are arranged on two sides of the bottom end of the anode cushion block (5), an anode pin (7) is arranged at the top end of the anode cushion block (5), the surface of the anode aluminum foil (4) is provided with a second polypropylene film (8), the surface of the second polypropylene film (8) is provided with an auxiliary graphene coating (9), the surface of the second polypropylene film (8) is provided with a cathode aluminum foil (10), and the surface of the cathode aluminum foil (10) is provided with an auxiliary cushion block (11), and a negative pole pin (15) is arranged at the top end of the auxiliary pole cushion block (11).

2. A capacitor film for producing a laminated type capacitor as claimed in claim 1, wherein: and a heat radiating fin (16) is arranged at the interlayer of the positive aluminum foil (4) and the second polypropylene film (8), and a heat radiating hole (1601) is formed in the surface of the heat radiating fin (16).

3. A capacitor film for producing a laminated type capacitor as claimed in claim 1, wherein: the positive cushion block (5) and the auxiliary cushion block (11) are identical in structure.

4. A capacitor film for producing a laminated type capacitor as claimed in claim 1, wherein: bumps (14) are arranged on the surface of the second polypropylene film (8), and the cross section of each bump (14) is circular.

5. A capacitor film for producing a laminated type capacitor as claimed in claim 1, wherein: an inner sleeve (1101) is installed inside the auxiliary pole cushion block (11), a limiting groove (1102) is formed inside the inner sleeve (1101), and four groups of limiting grooves (1102) are formed in the limiting groove (1102).

6. A capacitor film for producing a laminated type capacitor as claimed in claim 1, wherein: auxiliary pad feet (12) are installed on two sides of the bottom end of the auxiliary pole cushion block (11), two sets of auxiliary pad feet (12) are arranged, and the two sets of auxiliary pad feet (12) are of symmetrical structures relative to the center line of the auxiliary pole cushion block (11).

7. The capacitive film for producing a laminated capacitor as claimed in claim 4, wherein: the surface of the auxiliary pole cushion block (11) is provided with through holes (13) at equal intervals, the cross sections of the through holes (13) are circular, and the diameters of the through holes (13) are larger than those of the bumps (14).

8. The capacitive film for producing a laminated capacitor as claimed in claim 5, wherein: the peripheral surface of negative pole pin (15) is fixed with conducting bar (1501), and conducting bar (1501) are provided with four groups, and conducting bar (1501) and spacing groove (1102) sliding fit each other.

9. The capacitive film for producing a laminated capacitor as recited in claim 2, wherein: the radiating fins (16) are rectangular aluminum films.