CN208189402U - A kind of large capacity thin film capacitor - Google Patents
A kind of large capacity thin film capacitor Download PDFInfo
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- CN208189402U CN208189402U CN201820461837.XU CN201820461837U CN208189402U CN 208189402 U CN208189402 U CN 208189402U CN 201820461837 U CN201820461837 U CN 201820461837U CN 208189402 U CN208189402 U CN 208189402U
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- copper foil
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Abstract
The utility model discloses a kind of large capacity thin film capacitors, anode connection terminal including connection positive pole is sub, pole plate, the cathode connection terminal for connecting power cathode, capacitance core, the cathode welded with capacitance core cathode are connect with the anode of capacitance core anode welding connect pole plate, it further include cathode connection copper foil, positive connection copper foil, positive and negative anodes isolation board, several left side pole plate copper foil separators and several right side pole plate copper foil separators, the rectangular arrangement of capacitance core.Positive connection copper foil is each passed through welded with capacitance core anode behind several left side pole plate copper foil separators, positive and negative anodes isolation board, the space between corresponding adjacent four capacitance cores, and it is welded that cathode connection copper foil is each passed through several right side pole plate copper foil separators, positive and negative anodes isolation board, the space between corresponding adjacent four capacitance cores and capacitance core cathode.The appearance that the utility model improves capacitor is close, reduces capacitor volume, and reduce costs.
Description
Technical field
The utility model relates to a kind of large capacity thin film capacitors.
Background technique
With high pressure power transmission and distribution, the emergence of Large-scale Wind Turbines, the maturation of electric energy switch technology, electrical power distribution
Just seem increasingly important.And as power electronic devices (such as controllable diode, brilliant lock largely used in electrical power distribution link
Pipe, insulated gate bipolar transistor etc.), work is all made of controllable switch to realize the conversion to power supply.In order to obtain quality
More preferably electrical property, device producer continue to increase the switch sensitivity of controllable devices, cause frequency of the device in circuit use
It is promoted.Although high-frequency facilitates the promotion of power quality, but also derive unfavorable feature --- high frequency ripple.Circuit
In, influence of the high frequency ripple for power quality is very big, in order to inhibit high frequency ripple to be all made of appearance, perception to the influence of circuit
Device is filtered, to guarantee the quality of circuit.In electrical reticulation design, it is contemplated that the speciality of power grid --- perception, therefore generally select
It is filtered with capacitive device (capacitor).
As controllable devices, with increasing for device own frequency, the frequency and amplitude of ripple have raising.So making
For the capacitive device (capacitor) of filtering, performance also develops towards the direction of high pressure, large capacity.High voltage for capacitor,
It can be realized, be operated also relatively simple by increasing basement membrane film thickness, series capacitance.And large capacity then needs to consider in safe range
Interior increase two-stage overlapping area (existing capacitance process has limited its development --- and basic synchronization, difficulty have promotion for each supplier),
And increase capacitance group shunt capacitance core quantity (this method operation is most commonly seen).
In summary, the method for increasing thin film capacitor capacity is: in a limited space, increasing shunt capacitance core
Subnumber amount.This method is most simple and feasible scheme.
Certainly, inevitable towards the direction of large capacity rationally using the capacitor of space filtering under this factor (device high frequency)
Development.
In conjunction with existing capacitor core, we are it can be found that capacitance core is mostly cylindrical structure (as shown in Figure 1) now ---
Square capacitance core difficulty of processing is big, therefore few use.In Fig. 1,1 is capacitor plug, and being mainly used for capacitive function being capable of mould winding；
2 be capacitor noumenon function layer, main to play storage electric energy part；3 be gilding layer (capacitance core both ends have), for welding copper foil.
Capacitance core is generally arranged using shapes such as triangle, squares when parallel connection is welded into large bulk capacitance, and
This arrangement can all have segment space not to be available, and cause to waste.Specifically please refer to Fig. 2-1,2-2.
From Fig. 2-1,2-2 triangle, the signal of square arrangement wasting space are as can be seen that surround triangle or rectangular center
Certainly exist certain space (dashed area).When drawing copper sheet outside and cylindrical capacitive core welds, which will be wasted.
So the hollow structure that capacitance core is surrounded uses, just seemed very necessary for promoting large bulk capacitance.
The structure of existing Conventional mass capacitor, as shown in figure 3, Fig. 4 is the signal of existing large bulk capacitance on-line composition
Figure.The Conventional mass capacitor specifically includes: 1, connect anode connection terminal of positive pole；2, it is welded with capacitance core anode
Anode connection pole plate；3, capacitance core；4, pole plate is connect with the cathode of capacitance core cathode welding；5, connect the cathode of power cathode
Connection terminal.In Conventional mass capacitor structure, the copper sheet of major loop is constituted as capacitance core both ends.So by positive/negative plate
Bigger than normal with the loop area of capacitance core composition, inductance is naturally also just bigger than normal.
Utility model content
Due to the bulky capacitor of present --- using the capacitor of cylindrical capacitive core parallel connection welding fabrication, because its own is all
The limitation of more unfavorable factors itself certainly exists the disadvantages such as big inductance, capacity/volume be low.And the disadvantage of existing bulky capacitor, with electricity
Requirement of the road to filter capacitor deviates from (filtering requirements Gao Rongmi, low inductance), therefore the purpose of this utility model is to propose that one kind is big
Capacity thin film capacitor, to solve the problems, such as described above to exist.
A kind of large capacity thin film capacitor of the utility model, is resolved by the following technical programs:
A kind of large capacity thin film capacitor of the utility model, anode connection terminal and electricity including connecting positive pole
Anode connection pole plate, the cathode connection terminal for connecting power cathode, capacitance core and the capacitance core cathode of appearance core anode welding weld
Cathode connect pole plate, further include cathode connection copper foil, positive connection copper foil, positive and negative anodes isolation board, several left side pole plate copper foils
Separator and several right side pole plate copper foil separators, the rectangular arrangement of capacitance core, the anode connection copper foil are each passed through institute
State behind several left side pole plate copper foil separators, positive and negative anodes isolation board, the space between corresponding adjacent four capacitance cores with capacitor
Core anode is welded, and the cathode connection copper foil is each passed through several right side pole plate copper foil separators, positive and negative anodes isolation
Space and capacitance core cathode between plate, corresponding adjacent four capacitance cores is welded.
Wherein, the positive connection copper foil on anode connection pole plate, cathode connection copper foil on cathode connection pole plate
Even distribution.
Wherein, the anode connection pole plate and anode connection terminal, positive connection copper foil, capacitance core are welded to form capacitor packet
Positive component；Cathode connection pole plate and cathode connection terminal, cathode connection copper foil, capacitance core are welded to form capacitor packet cathode portion
Part.
Wherein, the positive connection copper foil correspondence in the capacitor packet anode component is welded in the capacitor packet anode member
The positive terminal of capacitance core, cathode connection copper foil in the capacitor packet anode member is corresponding to be welded in the capacitor packet anode component
The cathode of capacitance core.
The construction of the utility model and the construction of traditional capacitance, essential difference is in used connection pole plate.Because of the two
Structure is different, and the utility model large bulk capacitance is also more advantageous than Conventional mass capacitor on materials'use.Specific data are such as
Under:
Through calculating, it is 1.55Kg that Conventional mass capacitor, which is attached spent amount of metal, and the utility model capacitor
Metal consumption are as follows: 1.03Kg (metal quality by red copper calculate).The two is compared, lamination selected by the utility model capacitor
Structure compares traditional structure, and material about saves 33.5%.
Therefore compared with prior art, the utility model has the beneficial effects that
This large capacity thin film capacitor (the rectangular arrangement of capacitance core) of the utility model, makes full use of capacitance core to surround
Wasted space, the appearance for improving capacitor is close, reduces capacitor volume (under equivalent capability)；Lamination positive and negative anodes copper sheet (is constituted female
Line), reduce the inductance in capacitor itself circuit, and then improve circuit performance.
In addition to the above advantage, the welding of thick and heavy copper sheet progress capacitance core is replaced using copper foil, it is possible to reduce material makes
With；Plate design is worn, the wasted space that capacitance core surrounds is utilized, so that capacitor arrangement is more compact.
Detailed description of the invention
Fig. 1 is capacitor core structural map
Fig. 2-1 is capacitance core rounded projections arranged schematic diagram
Fig. 2-2 is capacitance core square arrangement schematic diagram
Fig. 3 is existing capacitance core group structural schematic diagram
Fig. 4 is existing large bulk capacitance on-line composition schematic diagram
Fig. 5 is the utility model capacitance core group structural schematic diagram
Fig. 6 is the utility model capacitance core group configuration schematic diagram
Fig. 7 is the utility model large bulk capacitance on-line composition schematic diagram
Fig. 8 is the utility model large capacity thin film capacitor outside drawing
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Fig. 5,6,7, a kind of large capacity thin film capacitor of the utility model, the anode including connecting positive pole
Connection terminal 1, cathode connection terminal 7, the capacitance core for connecting pole plate 2 with the anode of capacitance core anode welding, connecting power cathode
4, with capacitance core cathode welding cathode connect pole plate 6, further include cathode connection copper foil 3, anode connection copper foil 5, positive and negative anodes every
From plate 8, several left side pole plate copper foil separators 9 and several right side pole plate copper foil separators 9, the rectangular arrangement of capacitance core 4, anode is even
Connect copper foil 5 be each passed through several left side pole plate copper foil separators 9, positive and negative anodes isolation board 8, corresponding adjacent four capacitance cores 4 it
Between space after it is welded with the anode of capacitance core 4, cathode connection copper foil 3 be each passed through several right side pole plate copper foil separators 9,
Space and capacitance core cathode between positive and negative anodes isolation board 8, corresponding adjacent four capacitance cores is welded.
Wherein, positive connection copper foil 5 anode connection pole plate 2 on, cathode connection copper foil 3 cathode connection pole plate 6 on
Even distribution.
Wherein, anode connection pole plate 6 and anode connection terminal 1, positive connection copper foil 5, capacitance core 4 are welded to form capacitor packet
Positive component；Cathode connection pole plate 6 and cathode connection terminal 7, cathode connection copper foil 3, capacitance core 4 are welded to form capacitor packet cathode
Component.
It is insulated using positive and negative anodes isolation board 8 and two group parts positive and negative to capacitor packet of pole plate copper foil separator 9, in turn
It is assembled into the unit with low induction structure, then welds two groups of remaining polar ends of capacitance core (capacitor packet anode component copper foil pair
The positive terminal of capacitor packet anode member capacitance core, the corresponding welding capacitor packet anode component of capacitor packet anode member copper foil should be welded on
The negative pole end of capacitance core).Capacitance core group after the completion of erection welding is poured into absolutely by being formed after binding after cooperating with shell
Edge resin forms, as shown in Figure 8 after cured.
Claims (4)
1. a kind of large capacity thin film capacitor, which is characterized in that anode connection terminal and capacitance core including connecting positive pole
The anode of positive welding connects the negative of pole plate, the cathode connection terminal for connecting power cathode, capacitance core and the welding of capacitance core cathode
Pole connects pole plate, further includes cathode connection copper foil, positive connection copper foil, positive and negative anodes isolation board, the isolation of several left side pole plate copper foils
Part and several right side pole plate copper foil separators, the rectangular arrangement of capacitance core, if the anode connection copper foil be each passed through it is described
Behind dry left side pole plate copper foil separator, positive and negative anodes isolation board, the space between corresponding adjacent four capacitance cores just with capacitance core
Extremely welded, the cathode connection copper foil is each passed through several right side pole plate copper foil separators, positive and negative anodes isolation board, phase
The space between adjacent four capacitance cores and capacitance core cathode answered are welded.
2. large capacity thin film capacitor according to claim 1, it is characterised in that: the anode connection copper foil connects in anode
It connects on pole plate, cathode connection copper foil is uniformly distributed on cathode connection pole plate.
3. large capacity thin film capacitor according to claim 1, it is characterised in that: the anode connection pole plate and anode are even
Connecting terminal, positive connection copper foil, capacitance core are welded to form capacitor packet anode component；Cathode connect pole plate and cathode connection terminal,
Cathode connection copper foil, capacitance core are welded to form capacitor packet anode member.
4. large capacity thin film capacitor according to claim 3, it is characterised in that: in the capacitor packet anode component just
The corresponding positive terminal for being welded on capacitance core in the capacitor packet anode member of pole connection copper foil, in the capacitor packet anode member
The corresponding cathode for welding capacitance core in the capacitor packet anode component of cathode connection copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461837.XU CN208189402U (en) | 2018-03-30 | 2018-03-30 | A kind of large capacity thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820461837.XU CN208189402U (en) | 2018-03-30 | 2018-03-30 | A kind of large capacity thin film capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN208189402U true CN208189402U (en) | 2018-12-04 |
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ID=64436121
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820461837.XU Active CN208189402U (en) | 2018-03-30 | 2018-03-30 | A kind of large capacity thin film capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597873A (en) * | 2018-03-30 | 2018-09-28 | 上海鹰峰电子科技股份有限公司 | A kind of large capacity thin film capacitor |
-
2018
- 2018-03-30 CN CN201820461837.XU patent/CN208189402U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597873A (en) * | 2018-03-30 | 2018-09-28 | 上海鹰峰电子科技股份有限公司 | A kind of large capacity thin film capacitor |
| CN108597873B (en) * | 2018-03-30 | 2024-05-28 | 上海鹰峰电子科技股份有限公司 | High-capacity film capacitor |
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