CN106067377A - A kind of new-energy automobile thin film capacitor - Google Patents
A kind of new-energy automobile thin film capacitor Download PDFInfo
- Publication number
- CN106067377A CN106067377A CN201610352788.1A CN201610352788A CN106067377A CN 106067377 A CN106067377 A CN 106067377A CN 201610352788 A CN201610352788 A CN 201610352788A CN 106067377 A CN106067377 A CN 106067377A
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- China
- Prior art keywords
- new
- capacitor
- polypropylene film
- sidewall
- thin film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 59
- 239000010409 thin film Substances 0.000 title claims abstract description 31
- 239000010408 film Substances 0.000 claims abstract description 39
- -1 housing Substances 0.000 claims abstract description 39
- 239000004743 Polypropylene Substances 0.000 claims abstract description 37
- 229920001155 polypropylene Polymers 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000002360 explosive Substances 0.000 claims abstract description 13
- 238000009966 trimming Methods 0.000 claims abstract description 13
- 238000004382 potting Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 36
- 238000000605 extraction Methods 0.000 claims description 6
- 244000309464 bull Species 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000003475 lamination Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 4
- 238000007738 vacuum evaporation Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/14—Organic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention proposes a kind of new-energy automobile thin film capacitor, including housing, capacitor body, exit, potting compound, capacitor body is formed by metallized polypropylene film winding, metallized polypropylene film includes polypropylene film body, the screen band of band wave trimming is set in the side of polypropylene film body, the straight line trimming adding thickness coating is set at the opposite side that polypropylene film body is corresponding, polypropylene film body has the coat of metal by vacuum evaporation；Coat of metal pattern is half rectangular safety anti-explosive structure, is provided with electric fuse in half rectangular safety anti-explosive structure.The coat of metal pattern of metallized polypropylene film of the present invention is half rectangular safety anti-explosive structure, metallized polypropylene film side is provided with wave trimming, the electric capacity core body that it is wound into increases relative to straight line cutting film with the contact area of the coat of metal, substantially reduce contact resistance, improve product surge current and mechanical shock ability, substantially increase the safety of electric capacity.
Description
Technical field
The present invention relates to capacitor technology field, particularly relate to a kind of new-energy automobile thin film capacitor.
Background technology
In the design of new-energy automobile power pack, need to use high pressure thin film capacitor to carry out smoothing and filter
Application, along with what New-energy electric vehicle used day by day increases, the development of high-voltage large-capacity thin film capacitor, production are also by more
Carry out the concern of the most people.The applicable performance of the electric property of capacitor, security performance and hot environment directly influences new forms of energy
The quality of automobile power source and life-span, but existing capacitor safe performance is the highest, bears surge current and mechanical shock ability
More weak；Own inductance is big simultaneously, and under high frequency, oscillation effect is serious；In addition, existing capacitor shell in high temperature environments with
Potting compound is easy to crack；And whole capacitor manufacturing process is complicated, it is impossible to meet the requirement that new-energy automobile power supply uses and develops.
Summary of the invention
Based on technical problem present in background technology, the present invention proposes a kind of new-energy automobile thin film capacitor.
A kind of new-energy automobile thin film capacitor that the present invention proposes, including housing, capacitor body, exit, filling
Envelope material, capacitor body is formed by metallized polypropylene film winding, and metallized polypropylene film includes polypropylene film body,
Arrange the screen band of band wave trimming in the side of polypropylene film body, the opposite side corresponding at polypropylene film body is arranged
Add the straight line trimming of thickness coating, polypropylene film body has the coat of metal by vacuum evaporation；Coat of metal pattern is half
Rectangular safety anti-explosive structure, is provided with electric fuse in half rectangular safety anti-explosive structure.
Preferably, housing is provided with stack bus bar, and stack bus bar includes the first busbar and the second busbar, and the first busbar sets
Having the first bull extraction electrode, the second busbar is provided with the second bull extraction electrode, and capacitor body one end connects the first busbar,
The capacitor body other end connects the second busbar.
Preferably, housing is the square casing using insulant single injection-molded, and housing has and is oppositely arranged first
Sidewall and the second sidewall and the 3rd sidewall being oppositely arranged and the 4th sidewall, the first side wall is provided with to enclosure interior depression
First trapezoidal draw-in groove, the second sidewall is provided with the second trapezoidal draw-in groove to enclosure interior depression.
Preferably, the first side wall is provided with the first reinforcement of strip away from the second sidewall side, and the second sidewall is away from
One sidewall side is provided with the second reinforcement of strip.
Preferably, the 3rd sidewall is distributed the 3rd reinforcement of strip near the 4th sidewall side, and the 4th sidewall is close
3rd sidewall side is distributed the 4th reinforcement of strip.
Preferably, the first reinforcement, the second reinforcement all with housing integrated injection molding.
Preferably, the 3rd reinforcement, the 4th reinforcement cross section the most triangular in shape, the 3rd reinforcement, the 4th reinforcement
With housing integrated injection molding.
Preferably, potting compound uses resistance to 130 DEG C of High temp. epoxy resinses.
Preferably, housing is provided with the installing hole for fixedly mounting capacitor, studs with knurled metal rivet in installing hole.
The present invention proposes new-energy automobile thin film capacitor, capacitor body wound by metallized polypropylene film and
Becoming, metallized polypropylene film includes polypropylene film body, arranges band wave trimming in the side of polypropylene film body
Screen band, arranges the straight line trimming adding thickness coating, on polypropylene film body at the opposite side that polypropylene film body is corresponding
The coat of metal is had by vacuum evaporation；Coat of metal pattern is half rectangular safety anti-explosive structure, half rectangular safety anti-explosive knot
Structure is provided with electric fuse.The coat of metal pattern of metallized polypropylene film of the present invention is half rectangular safety anti-explosive structure,
Metallized polypropylene film side is provided with wave trimming, the contact area phase of the electric capacity core body that it is wound into and the coat of metal
Straight line cutting film is increased, substantially reduces contact resistance, improve its resistance to pulse and the ability of big electric current, it is to avoid electric capacity
The inefficacy of device, improves product surge current and mechanical shock ability, will not produce short circuit punch-through, substantially increase electric capacity
Safety.Further, the present invention uses stack bus bar to draw, and reduces current flow paths, increases circulation area, effectively
Reducing the self-induction of capacitor, the self-induction of capacitor drops to below 30nH, substantially reduces the vibration effect under HF switch frequency
Should.Further, inventive shell uses insulant single injection-molded, and processing technology is simple, low cost, good looking appearance；
By arranging the first elastic draw-in groove, the second elastic draw-in groove, the first reinforcement, the second reinforcement, the 3rd reinforcement and the 4th reinforcement
Muscle, improves the hardness of housing the most effectively, it is possible to bears bigger External Force Acting, and enhances housing and potting compound
Bond area and intensity, make capacitor not ftracture in severe high and low temperature environment.Further, the present invention uses heatproof 130
DEG C High temp. epoxy resins vacuum encapsulation, product uses under-40 DEG C～105 DEG C of environment, and resin does not ftractures with shell, electrode.
Accompanying drawing explanation
Fig. 1 is that a kind of new-energy automobile thin film capacitor that the present invention proposes assembles structural representation；
Fig. 2 is the axonometric drawing of a kind of new-energy automobile thin film capacitor that the present invention proposes；
Fig. 3 is the front view of a kind of new-energy automobile thin film capacitor that the present invention proposes；
Fig. 4 is sectional view at A-A in Fig. 3；
Fig. 5 is the metallized polypropylene film structural representation of a kind of new-energy automobile thin film capacitor that the present invention proposes
Figure；
Fig. 6 is the first busbar structure schematic diagram of a kind of new-energy automobile thin film capacitor that the present invention proposes；
Fig. 7 is the left view of Fig. 6；
Fig. 8 is the second busbar structure schematic diagram of a kind of new-energy automobile thin film capacitor that the present invention proposes；
Fig. 9 is the right view of Fig. 8.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 1 is a kind of new forms of energy vapour that the present invention proposes
Automobile-used thin film capacitor assembling structural representation；Fig. 2 is the axle of a kind of new-energy automobile thin film capacitor that the present invention proposes
View；Fig. 3 is the front view of a kind of new-energy automobile thin film capacitor that the present invention proposes；Fig. 4 is section view at A-A in Fig. 3
Figure；Fig. 5 is the metallized polypropylene film structural representation of a kind of new-energy automobile thin film capacitor that the present invention proposes；Figure
First busbar structure schematic diagram of the 6 a kind of new-energy automobile thin film capacitors proposed for the present invention；Fig. 7 is the left view of Fig. 6
Figure；Fig. 8 is the second busbar structure schematic diagram of a kind of new-energy automobile thin film capacitor that the present invention proposes；Fig. 9 is Fig. 8's
Right view.
As shown in Figure 1, Figure 2, Figure 5, the present invention proposes a kind of new-energy automobile thin film capacitor, including housing 1, electric capacity
Device fuse, exit, potting compound, capacitor body is formed by metallized polypropylene film 2 winding.Metallized polypropylene film bag
Include polypropylene film body 201, the screen band 202 of band wave trimming 203 is set in the side of polypropylene film body 201, poly-
The corresponding opposite side of Polypropylene film body 201 arranges the straight line trimming adding thickness coating, passes through on polypropylene film body 201
Vacuum evaporation has the coat of metal；The pattern of the coat of metal is half rectangular safety anti-explosive structure 204, half rectangular safety anti-explosive knot
Structure 204 is provided with electric fuse.Metallized polypropylene film 2 side is provided with wave trimming 203, and coat of metal pattern is half
Rectangular safety anti-explosive structure 204, the electric capacity core body that it is wound into increases with coat of metal contact area relative rectilinear cutting film,
Substantially reduce contact resistance, improve its resistance to pulse and the ability of big electric current, it is to avoid the inefficacy of capacitor, improve product wave
Gush electric current and mechanical shock ability, short circuit punch-through will not be produced, substantially increase the safety of electric capacity.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, in the present embodiment, housing 1 is the side using insulant single injection-molded
Shape housing 1, housing 1 has and is oppositely arranged the first side wall 101 and the second sidewall 102 and the 3rd sidewall 103 He being oppositely arranged
4th sidewall 104, the first side wall 101 is provided with the first trapezoidal draw-in groove 105 to housing 1 inner recess, the first side wall 101 away from
Second sidewall 102 side is provided with the first reinforcement 107 of strip, and the second sidewall 102 is provided with to housing 1 inner recess
Two trapezoidal draw-in grooves 106, the second sidewall 102 is provided with the second reinforcement 108 of strip away from the first side wall 101 side, and first adds
Strong muscle the 107, second reinforcement 108 all with housing 1 integrated injection molding.3rd sidewall 103 is distributed near the 4th sidewall 104 side
Having the 3rd reinforcement 109 of strip, the 4th sidewall 104 is distributed the 4th reinforcement of strip near the 3rd sidewall 103 side
Muscle 110, the cross section of the 3rd reinforcement the 109, the 4th reinforcement 110 is the most triangular in shape, the 3rd reinforcement the 109, the 4th reinforcement
110 with housing 1 integrated injection molding.Housing 1 is provided with the installing hole 5 for fixedly mounting capacitor, studs with rolling in installing hole 5
Flower metal rivet.The present embodiment housing 1 uses insulant single injection-molded, and processing technology is simple, low cost, beautiful outline form
See；By arranging the first elastic draw-in groove 105, second elastic draw-in groove the 106, first reinforcement the 107, second reinforcement 108, Acanthopanan trifoliatus (L.) Merr.
Strong muscle 109 and the 4th reinforcement 110, improve the hardness of housing 1, it is possible to bear bigger External Force Acting the most effectively, and
And enhance housing 1 and the bond area of potting compound and intensity, make capacitor not ftracture in severe high and low temperature environment.
As shown in Fig. 1, Fig. 6, Fig. 7, Fig. 8, Fig. 9, in the present embodiment, housing 1 is provided with stack bus bar, and stack bus bar includes
First busbar 3 and the second busbar 4, the first busbar 3 is provided with the first bull extraction electrode 301, and the second busbar 4 is provided with more than second
Head extraction electrode 401, capacitor body one end connects the first busbar 3, and the capacitor body other end connects the second busbar 4.This
Bright employing stack bus bar is drawn, and reduces current flow paths, increases circulation area, effectively reduces the self-induction of capacitor,
The self-induction of capacitor drops to below 30nH, substantially reduces the oscillation effect under HF switch frequency.
In the present embodiment, potting compound uses resistance to 130 DEG C of High temp. epoxy resinses.Use 130 DEG C of High temp. epoxy resinses of heatproof true
Empty embedding, product uses under-40 DEG C～105 DEG C of environment, and resin does not ftractures with shell, electrode.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
1. a new-energy automobile thin film capacitor, including housing (1), capacitor body, exit, potting compound, its feature
Being, capacitor body is formed by metallized polypropylene film (2) winding, and metallized polypropylene film includes that polypropylene film is originally
Body (201), arranges the screen band (202) of band wave trimming (203) in the side of polypropylene film body (201), thin at polypropylene
The corresponding opposite side of membrane body (201) arranges the straight line trimming adding thickness coating, by very on polypropylene film body (201)
Empty evaporation has the coat of metal；Coat of metal pattern is half rectangular safety anti-explosive structure (204), half rectangular safety anti-explosive structure
(204) electric fuse it is provided with in.
New-energy automobile thin film capacitor the most according to claim 1, it is characterised in that housing (1) is provided with lamination
Busbar, stack bus bar includes the first busbar (3) and the second busbar (4), and the first busbar (3) is provided with the first bull extraction electrode
(301), the second busbar (4) is provided with the second bull extraction electrode (401), and capacitor body one end connects the first busbar (3), electricity
The container fuse other end connects the second busbar (4).
New-energy automobile thin film capacitor the most according to claim 1 and 2, it is characterised in that housing (1) is for using absolutely
The square casing (1) of edge material single injection-molded, housing (1) has and is oppositely arranged the first side wall (101) and the second sidewall
(102) and the 3rd sidewall (103) that is oppositely arranged and the 4th sidewall (104), the first side wall (101) is provided with to housing (1)
First trapezoidal draw-in groove (105) of inner recess, the second sidewall (102) is provided with the second trapezoidal card to housing (1) inner recess
Groove (106).
New-energy automobile thin film capacitor the most according to claim 3, it is characterised in that the first side wall (101) away from
Second sidewall (102) side is provided with first reinforcement (107) of strip, and the second sidewall (102) is away from the first side wall (101)
Side is provided with second reinforcement (108) of strip.
New-energy automobile thin film capacitor the most according to claim 3, it is characterised in that the 3rd sidewall (103) is close
4th sidewall (104) side is distributed the 3rd reinforcement (109) of strip, and the 4th sidewall (104) is near the 3rd sidewall (103)
Side is distributed the 4th reinforcement (110) of strip.
New-energy automobile thin film capacitor the most according to claim 4, it is characterised in that the first reinforcement (107),
Two reinforcements (108) all with housing (1) integrated injection molding.
New-energy automobile thin film capacitor the most according to claim 5, it is characterised in that the 3rd reinforcement (109),
The cross section of four reinforcements (110) is the most triangular in shape, and the 3rd reinforcement (109), the 4th reinforcement (110) are with housing (1) integrally
Injection mo(u)lding.
8. according to the new-energy automobile thin film capacitor according to any one of claim 1-7, it is characterised in that potting compound is adopted
With resistance to 130 DEG C of High temp. epoxy resinses.
9. according to the new-energy automobile thin film capacitor according to any one of claim 1-7, it is characterised in that housing (1)
Being provided with the installing hole (5) for fixedly mounting capacitor, installing hole studs with knurled metal rivet in (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352788.1A CN106067377A (en) | 2016-05-20 | 2016-05-20 | A kind of new-energy automobile thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352788.1A CN106067377A (en) | 2016-05-20 | 2016-05-20 | A kind of new-energy automobile thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106067377A true CN106067377A (en) | 2016-11-02 |
Family
ID=57420157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352788.1A Pending CN106067377A (en) | 2016-05-20 | 2016-05-20 | A kind of new-energy automobile thin film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106067377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116168950A (en) * | 2022-11-17 | 2023-05-26 | 东莞市纬迪实业有限公司 | Anti-cracking gauge film capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07169648A (en) * | 1993-03-25 | 1995-07-04 | Matsushita Electric Ind Co Ltd | Multilayer thin-film capacitor and manufacture thereof |
| CN203338984U (en) * | 2013-05-30 | 2013-12-11 | 安徽省宁国市海伟电子有限公司 | Wave-slitting type metallized film |
| CN104252969A (en) * | 2014-09-28 | 2014-12-31 | 宁国市裕华电器有限公司 | Trapezoidal evaporation metalizing polypropylene film capacitor |
| CN104269271A (en) * | 2014-09-28 | 2015-01-07 | 宁国市裕华电器有限公司 | Novel polypropylene film capacitor |
| CN104934223A (en) * | 2015-06-28 | 2015-09-23 | 无锡宸瑞新能源科技有限公司 | Thin-film capacitor for automobile |
-
2016
- 2016-05-20 CN CN201610352788.1A patent/CN106067377A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07169648A (en) * | 1993-03-25 | 1995-07-04 | Matsushita Electric Ind Co Ltd | Multilayer thin-film capacitor and manufacture thereof |
| CN203338984U (en) * | 2013-05-30 | 2013-12-11 | 安徽省宁国市海伟电子有限公司 | Wave-slitting type metallized film |
| CN104252969A (en) * | 2014-09-28 | 2014-12-31 | 宁国市裕华电器有限公司 | Trapezoidal evaporation metalizing polypropylene film capacitor |
| CN104269271A (en) * | 2014-09-28 | 2015-01-07 | 宁国市裕华电器有限公司 | Novel polypropylene film capacitor |
| CN104934223A (en) * | 2015-06-28 | 2015-09-23 | 无锡宸瑞新能源科技有限公司 | Thin-film capacitor for automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116168950A (en) * | 2022-11-17 | 2023-05-26 | 东莞市纬迪实业有限公司 | Anti-cracking gauge film capacitor |
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Application publication date: 20161102 |