CN204178931U - Possesses the capacitor of composition metal busbar - Google Patents
Possesses the capacitor of composition metal busbar Download PDFInfo
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- CN204178931U CN204178931U CN201420677611.5U CN201420677611U CN204178931U CN 204178931 U CN204178931 U CN 204178931U CN 201420677611 U CN201420677611 U CN 201420677611U CN 204178931 U CN204178931 U CN 204178931U
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Abstract
The utility model relates to the capacitor possessing composition metal busbar, comprising: capacitor element, and it is batched by thin dielectric film and is formed, and is formed with conductive plating surface in both sides; Busbar, its conduction is connected to the both sides of the plating surface of described capacitor element (1); Shell (3), its built-in described capacitor element and busbar combination; Described busbar is the composition metal busbar (100) of the dissimilar metal combining at least one be selected from copper or aluminium; Described composition metal busbar (100) comprising: the sheet-metal layers (10) formed in centre; Be engaged in first layers of copper (20) of copper (Cu) material of the side of described sheet-metal layers (10); Be engaged in second layers of copper (30) of copper (Cu) material of the opposite side of described sheet-metal layers (10).
Description
Technical field
The utility model relates to the capacitor possessing composition metal busbar.
Background technology
Generally speaking, electric equipment, electric power, electronic equipment electricity container etc. widely uses at various industrial circle.This capacitor uses the plastic films such as polyester (PET) resin, polypropylene (PP) resin, PEN (PEN) resin, Merlon (PC) resin, polyphenylene sulfide (PPS) resin as dielectric, the deposit film that one or both sides at plastic film be deposited to metal batches, form plating surface at the two sides spraying plating zinc of the deposit film batched, kirsite, tin or 1 zinc, 2 tin, manufacture capacitor element.The static capacity of capacitor there are differences according to the purposes of capacitor, thus on different N pole busbar and P pole busbar, the number of capacitor element (hereinafter referred to as element) is increased and decreased and wiring, manufacture capacitor, the element of the capacitor wiring lesser amt of low capacity, the element of large value capacitor wiring a greater number, thus manufacture capacitor.Publication special No. 2001-0072178 (Panasonic) discloses capacitor and capacitor manufacture method.
All busbars of original capacitor have in the past made busbar with copper material.This copper material busbar capacitor conductive rate is good, on the contrary, and the high (8.89g/cm of density (proportion)
3), after manufacture capacitor, there is the shortcoming of heavier-weight, because the unit price of copper coin is high, there is the shortcoming that capacitor goods unit price raises.Along with nearest vehicle lightweight trend and copper valency rise, there is the capacitor of exploitation light weight and cater to the needs reducing the prices of raw and semifnished materials.
Utility model content
(technical problem that will solve)
The utility model is intended to exploitation because Cu raw material unit price rises for cost-effective busbar, there is provided a kind of and reduce busbar unit price, cater to vehicle lightweight, can while reduction capacitor overall weight, characteristic is not less than the capacitor possessing composition metal busbar of the special busbar of Cu in the past.
The utility model aims to provide a kind of capacitor possessing composition metal busbar, busbar is made with the material (Cu+Al+Cu) making copper (Cu) be engaged in aluminium (Al) material two sides, proportion is about 40 ~ 50% of Cu busbar, when making goods, can weight reduction about more than 40% (being 48% in embodiment).
(means of dealing with problems)
The capacitor possessing composition metal busbar of the present utility model, comprising:
Capacitor element, it is batched by thin dielectric film and is formed, and is formed with conductive plating surface in both sides;
Busbar, its conduction is connected to the both sides of the plating surface of described capacitor element (1);
Shell (3), its built-in described capacitor element and busbar combination;
Described busbar is the composition metal busbar (100) of the dissimilar metal combining at least one be selected from copper or aluminium,
Described composition metal busbar (100) comprising:
The sheet-metal layers (10) formed in centre;
Be engaged in first layers of copper (20) of copper (Cu) material of the side of described sheet-metal layers (10);
Be engaged in second layers of copper (30) of copper (Cu) material of the opposite side of described sheet-metal layers (10).
(effect of utility model)
According to the utility model, develop because Cu raw material unit price rises for cost-effective busbar, there is provided a kind of and reduce busbar unit price, cater to vehicle lightweight, can while reduction capacitor overall weight, characteristic is not less than the capacitor possessing composition metal busbar of the special busbar of Cu in the past.
According to the utility model, a kind of capacitor possessing composition metal busbar is provided, busbar is made with the material (Cu+Al+Cu) making copper (Cu) be engaged in aluminium (Al) material two sides, proportion is about 40 ~ 50% of Cu busbar, when making goods, can weight reduction about more than 40%.
Accompanying drawing explanation
Fig. 1 a is the capacitor overall diagram possessing composition metal busbar of the utility model embodiment;
Fig. 1 b is the structural representation possessing composition metal busbar of the utility model embodiment;
Fig. 2 a is the composition metal busbar pie graph of the utility model embodiment;
Fig. 2 b is the composition metal busbar pie graph of another embodiment of the utility model;
Fig. 3 is the busbar pie graph of the hot rolling mode of the utility model embodiment.
< symbol description >
100: composition metal busbar 10: sheet-metal layers
20: the first layers of copper 30: the second layers of copper
40: outside Gold plated Layer 210: metal raw sheet
220: the first bronze medal raw sheet 230: the second bronze medal raw sheets
R1: the first roller R2: the second roller
R3: the three roller R10: upper roller
R20: bottom roll
Embodiment
Below the capacitor possessing composition metal busbar of the utility model embodiment is described.Fig. 1 is the capacitor overall diagram possessing composition metal busbar of the utility model embodiment, and Fig. 2 is the composition metal busbar pie graph of the utility model embodiment, and Fig. 3 is the busbar pie graph of the hot rolling mode of the utility model embodiment.
As Fig. 1 to Fig. 3, particularly as shown in Figure 2 a, the capacitor possessing composition metal busbar of the utility model embodiment comprises: capacitor element 1, and it is batched by thin dielectric film and is formed, and is formed with conductive plating surface in both sides; Busbar, it is electrically connected in the both sides of the plating surface of described capacitor element 1; Shell 3, its built-in capacitor element and busbar combination.Busbar is the composition metal busbar 100 of the dissimilar metal combining at least one be selected from copper or aluminium.Composition metal busbar 100 comprises: the sheet-metal layers 10 formed in centre; Be engaged in the first layers of copper 20 of the copper Cu material of the side of described sheet-metal layers 10.
The material of preferable alloy flaggy 10 is aluminium Al.In the utility model, the material of preferable alloy flaggy 10 is aluminium Al.As the material of sheet-metal layers 10, can be also iron, stainless steel or other nonferrous metal, but consider proportion and the prices of raw and semifnished materials, for reaching the purpose of this utility model and preferred aluminium Al.
As shown in Figure 2 a, the thickness of preferable alloy flaggy 10 is 0.3 ~ 5mm, and the thickness of the first layers of copper 20 is 0.05 ~ 2mm, and sheet-metal layers 10 is formed be thicker than described first layers of copper 20.If Al layer is less than 0.3mm, then need the copper of relative more, busbar weight increases, against in light-weighted object of the present utility model.If be greater than 5mm, then material consumption exceedes needed for performance busbar function.If the thickness of copper coin is less than 0.05mm, be then difficult to guarantee conductance, compound, gold-plated workability decline.If be greater than 2mm, then busbar weight increases, against in light-weighted object of the present utility model.After preproduction makes, result of the test is known, and when the material of sheet-metal layers 10 is aluminium Al, the thickness of sheet-metal layers 10 is 0.5 ~ 3.0mm, first, second layers of copper 20, most suitable as capacitor busbar when in 30, the thickness of at least one is 0.1 ~ 1.0mm.
As shown in Figure 2 b, the second layers of copper 30 preferably also comprising the copper Cu material of the opposite side being engaged in sheet-metal layers 10 is formed.Electrically be energized, when the current flows, by means of kelvin effect, there is the tendency strengthened to the current density of conductive surface Outboard Sections, thus known, at two sides copper facing or the electrotinning of sheet-metal layers, with only one side gold-plated compared with, the electrical characteristic such as conductance or ESR is more outstanding.
As shown in Figure 2 b, the thickness of sheet-metal layers 10 is 0.3 ~ 5mm, and the thickness of first, second layers of copper 20,30 described is 0.05 ~ 2mm, and described sheet-metal layers 10 is formed be thicker than first, second layers of copper 20,30 described.The thickness of preferable alloy flaggy 10 is 0.3 ~ 5mm, and the thickness of the first layers of copper 20 is 0.05 ~ 2mm, and sheet-metal layers 10 is formed be thicker than described first layers of copper 20.If Al layer is less than 0.3mm, then need the copper of relative more, busbar weight increases, against in light-weighted object of the present utility model.If be greater than 5mm, then material consumption exceedes needed for performance busbar function.If the thickness of copper coin is less than 0.05mm, be then difficult to guarantee conductance, compound, gold-plated workability decline.If be greater than 2mm, then busbar weight increases, against in light-weighted object of the present utility model.First, second layers of copper 20,30 in the side of sheet-metal layers 10, the gold-plated formation of opposite side.
With regard to the capacitor possessing composition metal busbar of the utility model embodiment, be preferably selected from a kind of outside Gold plated Layer 40 in tin coating or plating tin layers, nickel coating or chromium coating also junction in the side of described first layers of copper 20 and the second layers of copper 30 opposite side and form.The outside Gold plated Layer of electrotinning, chromium coating etc. plays cut-out copper facing and contacting with air, preventing from causing the function of the oxidative phenomena of copper plate because contacting with air.
As shown in Figure 3, preferable alloy flaggy 10 and the first layers of copper 20 are under the state making the first bronze medal raw sheet 220 supplied from the first roller R1 be positioned at the side of the metal raw sheet 210 supplied from the second roller R2, metal raw sheet 210 and the first bronze medal raw sheet 220 are fed between upper roller R10 and bottom roll R20 simultaneously, are manufactured by hot rolling.
As shown in Figure 3, preferable alloy flaggy 10 and first, second layers of copper 20,30 is at the first bronze medal raw sheet 220 making to supply from the first roller R1 with from the state that the second bronze medal raw sheet 230 that the 3rd roller R3 supplies is positioned at the both sides of the metal raw sheet 210 supplied from the second roller R2, metal raw sheet 210, first bronze medal raw sheet 220 and the second bronze medal raw sheet 230 are fed between upper roller R10 and bottom roll R20 simultaneously, are manufactured by hot rolling.Preferred capacitor is used as the inverter of hybrid vehicle, electric automobile, hydrogen cell automobile, plug-in type electric automobile, industrial inverter is used.
Relevant to the utility model below characteristic value, result of the test etc. carry out expansion explanation.
Density, conductance, unit price compare
Table 1
During energising, electric current flows through busbar surface because of kelvin effect, therefore, if busbar inner materials uses low, the unit price material that also cheap, proportion is low of conductance, the outstanding material of surface attachment conductance is used, then judge not to think the problems such as resistance increase that busbar occurs, middle main material uses aluminium, adhere to very thin copper coin in the both side surface of aluminium in hot rolling mode, after carrying out electrotinning, make capacitor busbar and test.
Make capacitor busbar and the result of test, busbar weight saving 48.7%, conductance is compared with copper coin, and conductance declines about 26.5%, but after manufacture capacitor, there is minimum difference (hardly difference occurring) in capacitor series equivalent resistance ESR.Capacitor temperature buildup tests result, capacitor internal heating is low, compared with copper coin, hardly difference occurs.Although busbar sample unit price cheap about 5%, when being applied to batch production, judge to think that busbar unit price decline effect is larger.
Effect: density, conductance, unit price compare
Table 2
Capacitor result of the test
Table 3
When making capacitor busbar with copper and be made into composition metal busbar, identical in other all characteristic and endurance test.
Busbar Property comparison (vehicle inverter & N pole, P pole)
Table 4
Busbar manufactures unit price (vehicle inverter & N pole ,-P pole)
Table 5
Key property (Cu/Al/Cu composition metal)
-density: be about 37% ~ 58% relative to Cu
-conductance: be about 63% ~ 77% relative to Cu
Table 6
Now apply predetermined material: Cu point of rate 30%
Composition metal busbar thermal shock test result (Link): Link Capacitor result
As shown above, the result of the test of copper coin different proportion, quality almost do not have big-difference, after the punching press of compound busbar during bending, if the ratio of copper coin is low, then can there is crackle in the part of bending, therefore, preferably use 30% (volume ratio, Thickness Ratio benchmark) compound busbar that copper coin ratio is high.After composition metal thermal shock test, the characteristic of Link Capacitor is without exception.
CAC busbar characteristic: make Cu be engaged in the material (Cu+Al+Cu) on Al material two sides: when making proportion is the goods of about 40 ~ 50% of Cu, about more than 40% weight can be saved: Al and Cu fundamental characteristics compares
Table 7
Table 8
The gold-plated mode > of < layers of copper
Carry out copper facing after acid treatment to aluminium, zinc-plated afterwards, make capacitor bus, result of the test shows, and busbar weight reduces about 69%, and conductance and series equivalent resistance ESR also reduce, and capacitor internal heating also reduces, and characteristic is outstanding.Busbar unit price aspect, aluminium is about 50% of copper, but in order to improve conductance, gold-plated expense rises, and busbar unit price reduces low effort.
< comparative example >
In the utility model development process (as a comparison case), at density (proportion) low (2.7g/cm
3) aluminium sheet on calculate the result of busbar after electrotinning, have that proportion is low, the advantage of weight low (-69.6%), but conductance declines, ESR (series equivalent resistance) is high, has the shortcoming at capacitor internal thermal characteristics lowly and not easily electrotinning.
The preferred embodiment that the utility model just mentions above is illustrated, but scope of the present utility model is not defined in this embodiment, scope of the present utility model is determined by following claims, comprises and belonging to and the multiple amendment of the utility model equivalency range and distortion.
It is pointed out that the reference numeral recorded in following claims is merely for the understanding of auxiliary utility model, does not affect the explanation of interest field, must not be defined in the reference numeral of record and shrink explanation interest field.
Claims (10)
1. possess a capacitor for composition metal busbar, it is characterized in that, comprising:
Capacitor element, it is batched by thin dielectric film and is formed, and is formed with conductive plating surface in both sides;
Busbar, it is electrically connected in the both sides of the plating surface of described capacitor element (1);
Shell (3), its built-in described capacitor element and busbar combination;
Described busbar is the composition metal busbar (100) of the dissimilar metal combining at least one be selected from copper or aluminium.
2. the capacitor possessing composition metal busbar according to claim 1, is characterized in that,
Described composition metal busbar (100) comprising:
The sheet-metal layers (10) formed in centre;
Be engaged in first layers of copper (20) of copper (Cu) material of the side of described sheet-metal layers (10).
3. the capacitor possessing composition metal busbar according to claim 2, is characterized in that, also comprise:
Be engaged in second layers of copper (30) of copper (Cu) material of the opposite side of described sheet-metal layers (10).
4. the capacitor possessing composition metal busbar according to claim 2, is characterized in that,
The thickness of described sheet-metal layers (10) is 0.3 ~ 5mm,
The thickness of described first layers of copper (20) is 0.05 ~ 2mm,
Described sheet-metal layers (10) is formed be thicker than described first layers of copper (20).
5. the capacitor possessing composition metal busbar according to claim 3, is characterized in that,
The thickness of described sheet-metal layers (10) is 0.3 ~ 5mm,
The thickness of first, second layers of copper described (20,30) is 0.05 ~ 2mm,
Described sheet-metal layers (10) is formed be thicker than described first, second layers of copper (20,30).
6. the capacitor possessing composition metal busbar according to claim 4 or 5, is characterized in that,
The material of described sheet-metal layers (10) is aluminium (Al),
The thickness of described sheet-metal layers (10) is 0.5 ~ 3.0mm,
In first, second layers of copper described (20,30), the thickness of at least one is 0.1 ~ 1.0mm.
7. the capacitor possessing composition metal busbar according to claim 4 or 5, is characterized in that,
Be selected from the outside Gold plated Layer (40) of one in tin coating or plating tin layers, nickel coating or chromium coating also junction in the side of described first layers of copper (20) and the second layers of copper (30) opposite side and form.
8. the capacitor possessing composition metal busbar according to claim 4 or 5, is characterized in that,
Described sheet-metal layers (10) and the first layers of copper (20) are the state being positioned at the side of the metal raw sheet (210) supplied from the second roller (R2) at the first bronze medal raw sheet (220) making to supply from the first roller (R1), metal raw sheet (210) and the first bronze medal raw sheet (220) are fed between upper roller (R10) and bottom roll (R20) simultaneously, are manufactured by hot rolling.
9. the capacitor possessing composition metal busbar according to claim 4 or 5, is characterized in that,
Described sheet-metal layers (10) and first, second layers of copper (20,30) be at the first bronze medal raw sheet (220) making to supply from the first roller (R1) with from the state that the second bronze medal raw sheet (230) that the 3rd roller (R3) is supplied is positioned at the both sides of the metal raw sheet (210) supplied from the second roller (R2), metal raw sheet (210), the first bronze medal raw sheet (220) and the second bronze medal raw sheet (230) are fed between upper roller (R10) and bottom roll (R20) simultaneously, are manufactured by hot rolling.
10. the capacitor possessing composition metal busbar according to claim 4 or 5, is characterized in that,
First, second layers of copper (20,30) in the side of sheet-metal layers (10), opposite side carries out gold-plated,
Described capacitor is used as the inverter of hybrid vehicle, electric automobile, hydrogen cell automobile, plug-in type electric automobile, industrial inverter is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677611.5U CN204178931U (en) | 2014-11-13 | 2014-11-13 | Possesses the capacitor of composition metal busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677611.5U CN204178931U (en) | 2014-11-13 | 2014-11-13 | Possesses the capacitor of composition metal busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178931U true CN204178931U (en) | 2015-02-25 |
Family
ID=52567718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420677611.5U Active CN204178931U (en) | 2014-11-13 | 2014-11-13 | Possesses the capacitor of composition metal busbar |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140030A (en) * | 2015-09-23 | 2015-12-09 | 纽茵泰克株式会社 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
| CN107364456A (en) * | 2016-05-12 | 2017-11-21 | 通用电气公司 | Inverter drive system, busbar and component |
| CN115088047A (en) * | 2020-12-10 | 2022-09-20 | 纽茵泰克株式会社 | Shell molding capacitor for improving filling surface levelness |
| CN115088047B (en) * | 2020-12-10 | 2024-04-26 | 纽茵泰克株式会社 | Shell molded capacitor with improved filling surface levelness |
-
2014
- 2014-11-13 CN CN201420677611.5U patent/CN204178931U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140030A (en) * | 2015-09-23 | 2015-12-09 | 纽茵泰克株式会社 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
| CN107364456A (en) * | 2016-05-12 | 2017-11-21 | 通用电气公司 | Inverter drive system, busbar and component |
| CN107364456B (en) * | 2016-05-12 | 2020-10-27 | 通用电气全球采购有限责任公司 | Inverter driving assembly and bus bar for inverter driving assembly of vehicle |
| CN115088047A (en) * | 2020-12-10 | 2022-09-20 | 纽茵泰克株式会社 | Shell molding capacitor for improving filling surface levelness |
| CN115088047B (en) * | 2020-12-10 | 2024-04-26 | 纽茵泰克株式会社 | Shell molded capacitor with improved filling surface levelness |
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