CN209691600U - A kind of metalized film for capacitor - Google Patents
A kind of metalized film for capacitor Download PDFInfo
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- CN209691600U CN209691600U CN201920572117.5U CN201920572117U CN209691600U CN 209691600 U CN209691600 U CN 209691600U CN 201920572117 U CN201920572117 U CN 201920572117U CN 209691600 U CN209691600 U CN 209691600U
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- thickened area
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Abstract
The utility model discloses a kind of metalized films for capacitor, belong to capacitor area.The metalized film for being used for capacitor includes screen band, the coat of metal of the screen with upper layer is arranged in；The coat of metal includes safe film edge thickened area and the non-thickened area of safety diaphragm；The edge for shielding one end of band is wavy shaped configuration；It is weak to solve the problems, such as that capacitor bears peak inrush current, maximum impact electric current and ripple current ability；The ability to bear of the peak inrush current, maximum impact electric current and ripple current ability that improve capacitor is reached, multiple inverted V type clear bars and multiple Y type clear bars are provided on the non-thickened area of safety diaphragm, the non-thickened area of safety diaphragm is divided into the cell of several composition capacitors by inverted V type clear bar, Y type clear bar and screen band, coat of metal connection between inverted V type clear bar and Y type clear bar adjacent edge, acts as the effect of insurance；Capacitor is solved in failure in open-circuit condition, on effect of other circuits of periphery without influence.
Description
Technical field
The utility model embodiment is related to capacitor area, in particular to a kind of metalized film for capacitor.
Background technique
The edge thickened area of common metal membrane capacitance is narrow or even some do not have edge thickened area, and capacitor is caused to hold
Ability by peak inrush current, maximum impact electric current and ripple current is weaker.When the voltage of two interpolar of capacitor is more than common
When the tolerance range of metalized film, capacitor can puncture, and breakdown mode is uncertain, and short-circuit condition, which may be presented, to be presented out
Line state can cause adverse effect by other circuits to surrounding if short-circuit condition is presented in capacitor breakdown.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of metallization for capacitor
Film.The technical solution is as follows:
In a first aspect, providing a kind of metalized film for capacitor, including screen band, metal of the screen with upper layer is set
Coating；
The coat of metal includes safe film edge thickened area and the non-thickened area of safety diaphragm；
The edge for shielding one end of band is wavy shaped configuration；
On the non-thickened area of safety diaphragm, it is provided with multiple inverted V type clear bars and multiple Y type clear bars, inverted V type clear bar, Y
The non-thickened area of safety diaphragm is divided into the cell of several composition capacitors, inverted V type clear bar and Y type by type clear bar and screen band
Gap is provided between the adjacent side of clear bar, the top of inverted V type clear bar is contacted with safe film edge thickened area；
Wherein, there is no the coat of metal in inverted V type clear bar and Y type clear bar.
Optionally, the thickness of safe film edge thickened area is greater than the thickness of the non-thickened area of safety diaphragm；
There is thickness transitions area between safe film edge thickened area and the non-thickened area of safety diaphragm.
Optionally, the width of safe film edge thickened area is the 1/3 to 1/2 of metalized film width.
Technical solution provided by the embodiment of the utility model has the benefit that
The metalized film for being used for capacitor includes screen band, the coat of metal of the screen with upper layer is arranged in, and the coat of metal includes
Safe film edge thickened area and the non-thickened area of safety diaphragm, shield the other end of band edge be wavy shaped configuration, safety diaphragm it is non-plus
In thick area, multiple inverted V type clear bars and multiple Y type clear bars are provided with, inverted V type clear bar, Y type clear bar will be safe with screen band
The non-thickened area of film is divided into the cell of several composition capacitors, sets before the inverted V type clear bar side adjacent with Y type clear bar
It is equipped with gap, the top of inverted V type clear bar is contacted with safe film edge thickened area, is not had in inverted V type clear bar and Y type clear bar
The coat of metal；It is weak to solve the problems, such as that capacitor bears peak inrush current, maximum impact electric current and ripple current ability；Reach
The peak inrush current of capacitor, the ability to bear of maximum impact electric current and ripple current ability are improved, while ensuring capacitor
Device is in open-circuit condition in failure, on effect of other circuits of periphery without influence.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of metalized film for capacitor shown according to an exemplary embodiment；
Fig. 2 is a kind of cross-sectional view of metalized film for capacitor shown according to an exemplary embodiment；
Fig. 3 is the schematic diagram after two metalized films shown according to an exemplary embodiment stack；
Fig. 4 is a kind of cross-sectional view of capacitor body shown according to an exemplary embodiment；
Fig. 5 is the schematic diagram after a kind of common metal film stacks.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1-2 is please referred to, it illustrates the metalized films for capacitor of the utility model one embodiment offer
Structural schematic diagram, the metalized film include the coat of metal 20 for shielding band 10, screen 10 upper layer of band being arranged in.
The coat of metal 20 includes safe film edge thickened area 21 and the non-thickened area 22 of safety diaphragm；Safe film edge thickened area 21
Thickness be greater than the non-thickened area of safety diaphragm thickness 22.
As shown in Fig. 2, having thickness between safe film edge thickened area 21 and the non-thickened area 22 of safety diaphragm in the coat of metal 20
Transition region 23.
As depicted in figs. 1 and 2, there are lay edges 11 between the edge of the non-thickened area 22 of safety diaphragm and the one end for shielding band 10,
Namely there is no the coat of metal on the lay edges 11 on screen band 10.
The edge for shielding one end of band 10 is wavy shaped configuration 12.
On the non-thickened area 22 of safety diaphragm, it is provided with multiple inverted V type clear bars 31 and multiple Y type clear bars 32, multiple V
Type clear bar 31 is parallel to each other, and multiple Y type clear bars 32 are parallel to each other.Without gold in inverted V type clear bar 31 and Y type clear bar 32
Belong to coating, inverted V type clear bar 31 and the visible directly screen band 10 of Y type clear bar 32 can be passed through.
The non-thickened area 22 of safety diaphragm is divided into several composition electricity by inverted V type clear bar 31, Y type clear bar 32 and screen band 10
The cell of container.
The top of inverted V type clear bar 31 is contacted with safe film edge thickened area 31.As shown in Figure 1, each inverted V type clear bar
31 top is contacted with safe film edge thickened area 31.
Be provided with gap 33 between inverted V type clear bar 31 and the adjacent side of Y type clear bar 32, the gap as fuse,
To circuit device protective effect, when capacitor transient voltage increases, elsewhere due to the voltage carrying capacity ratio at gap 33
Voltage carrying capacity it is low, so generating self-healing property breakdown at gap 33, disconnecting at gap 33 is that fuse disconnects, capacitor
Capacity decline, reduces the energy of capacitor accumulation, and capacitor is avoided to generate avalanche breakdown, meanwhile, it disconnects at gap 33 and protecting
When dangerous silk disconnects, capacitor failure is in open-circuit condition rather than short-circuit condition, on other circuits without influence；Further, since
Gap 33 is that fuse disconnects the capacity of some or certain several cells is only enabled to lose, and is not in the feelings that capacity declines to a great extent
Condition, can guarantee that capacitor will not decline to a great extent because of capacity causes function to be affected.
It should be noted that the width of safe film edge thickened area 21 is the 1/3 to 1/2 of metalized film width, the application
In safe film edge thickened area 21 width it is more wider than the width of common metalized film thickened area, common metalized film adds
The width in thick area generally only has 3~5mm；By increasing the width of safety diaphragm thickened area 21, capacitor can be improved and bear maximum
The ability of electric current and ripple current.By increasing the width of safe film edge thickened area, it can reduce resistance, reduce fever, also
The ability that capacitor bears overcurrent is increased, is conducive to improve the ability for bearing peak inrush current and ripple current.
In the production capacitor core period of the day from 11 p.m. to 1 a.m, two metalized films are relatively stacked, the structure of the every metalized film used
As depicted in figs. 1 and 2；As shown in figure 3, metalized film 420 is placed on the upper layer of metalized film 410, the safety of metalized film 420
Film edge thickened area is in the top of the wavy shaped configuration of the screen band of metalized film 410, the waveform knot of the screen band of metalized film 420
Top of the structure in the safe film edge thickened area of metalized film 410.Then two metalized films after stacking again roll up,
After repeatedly obtaining multiple volumes 42, as shown in figure 4, the both ends of multiple volumes 44 utilize gilding layer 41 by after the arrangement of multiple volumes 42
Connection.
According to common metalized film, that is, shield the edge not instead of wavy shaped configuration of band, linear structure, two metals
After change film relatively stacks, as shown in figure 5, metalized film 520 is on the upper layer of metalized film 510；Then two after stacking
Metalized film rolls into a roll, and multiple volumes are arranged, and the both ends of multiple volumes are connected using gilding layer.
For the metalized film of comparable size, comparison diagram 3 and Fig. 5, it can be seen that in Fig. 3 the edge of metalized film 410 with
Maximum distance between the edge of metalized film 420 is S1, the edge at the edge of metalized film 510 and metalized film 520 in Fig. 5
Between maximum distance be S2, due in metalized film provided by the embodiment of the utility model shield band edge be wavy shaped configuration
12, the edge compared to screen band is linear structure, and the S1 in Fig. 3 is greater than the S2 in Fig. 5, i.e., provided by the embodiment of the utility model
Metallized film structure can increase the contact area of gilding layer 41 and safe film edge thickened area 21, improve the adhesive force of metal spraying,
Contact resistance is reduced, the maximum impact electric current that capacitor is able to bear is improved.
In conclusion the metalized film provided by the embodiment of the utility model for capacitor, including screen band, setting are shielding
The coat of metal with upper layer, the coat of metal include safe film edge thickened area and the non-thickened area of safety diaphragm, shield the other end of band
Edge is wavy shaped configuration, on the non-thickened area of safety diaphragm, is provided with multiple inverted V type clear bars and multiple Y type clear bars, V
The non-thickened area of safety diaphragm is divided into the cell of several composition capacitors, inverted V type by type clear bar, Y type clear bar and screen band
It is provided with gap before the clear bar side adjacent with Y type clear bar, the top of inverted V type clear bar connects with safe film edge thickened area
It touches, there is no the coat of metal in inverted V type clear bar and Y type clear bar；It solves capacitor and bears peak inrush current, maximum impact
Electric current and the weak problem of ripple current ability；Peak inrush current, maximum impact electric current and the ripple for improving capacitor are reached
The ability to bear of current capacity, while ensuring that capacitor is in open-circuit condition in failure, on other circuits of periphery without influence
Effect.
It should be understood that above-mentioned the utility model embodiment serial number is for illustration only, do not represent the advantages or disadvantages of the embodiments.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of metalized film for capacitor, which is characterized in that including screen band, the coat of metal of the screen with upper layer is arranged in；
The coat of metal includes safe film edge thickened area and the non-thickened area of safety diaphragm；
The edge of one end of the screen band is wavy shaped configuration；
On the non-thickened area of the safety diaphragm, it is provided with multiple inverted V type clear bars and multiple Y type clear bars, inverted V type clear bar, Y
The non-thickened area of safety diaphragm is divided into the cell of several composition capacitors, inverted V type clear bar and Y type by type clear bar and screen band
Gap is provided between the adjacent side of clear bar, the top of inverted V type clear bar is contacted with the safe film edge thickened area；
Wherein, there is no the coat of metal in inverted V type clear bar and Y type clear bar.
2. the metalized film according to claim 1 for capacitor, which is characterized in that the safe film edge thickened area
Thickness be greater than the non-thickened area of the safety diaphragm thickness；
There is thickness transitions area between the safe film edge thickened area and the non-thickened area of the safety diaphragm.
3. the metalized film according to claim 1 for capacitor, which is characterized in that the safe film edge thickened area
Width be the 1/3 to 1/2 of the metalized film width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920572117.5U CN209691600U (en) | 2019-04-24 | 2019-04-24 | A kind of metalized film for capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920572117.5U CN209691600U (en) | 2019-04-24 | 2019-04-24 | A kind of metalized film for capacitor |
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| Publication Number | Publication Date |
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| CN209691600U true CN209691600U (en) | 2019-11-26 |
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| CN201920572117.5U Active CN209691600U (en) | 2019-04-24 | 2019-04-24 | A kind of metalized film for capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463011A (en) * | 2020-04-30 | 2020-07-28 | 郑州华晶新能源科技有限公司 | Metallized safety explosion-proof membrane |
-
2019
- 2019-04-24 CN CN201920572117.5U patent/CN209691600U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463011A (en) * | 2020-04-30 | 2020-07-28 | 郑州华晶新能源科技有限公司 | Metallized safety explosion-proof membrane |
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