CN109524240A - Impulse capacitor - Google Patents
Impulse capacitor Download PDFInfo
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- CN109524240A CN109524240A CN201811423942.5A CN201811423942A CN109524240A CN 109524240 A CN109524240 A CN 109524240A CN 201811423942 A CN201811423942 A CN 201811423942A CN 109524240 A CN109524240 A CN 109524240A
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- impulse capacitor
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- 239000003990 capacitor Substances 0.000 title claims abstract description 61
- 238000003466 welding Methods 0.000 claims description 34
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 33
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 23
- 239000003989 dielectric material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 description 22
- 125000004122 cyclic group Chemical group 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003462 vein Anatomy 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
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
- H01G4/385—Single unit multiple capacitors, e.g. dual capacitor in one coil
-
- 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
-
- 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
- H01G4/33—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 provides a kind of impulse capacitors, comprising: at least one element coaxially wound；Each element includes: at least one first pole plate, at least one second pole plate and at least one dielectric coaxially wound；First pole plate and second pole plate are arranged alternately, and the dielectric is set between adjacent first pole plate and second pole plate；Each first pole plate of each element is located at the element and is electrically connected in one end of the first upward side of wireline reel, and each second pole plate of each element is located at the element and is electrically connected in one end of the upward second side of the wireline reel；First side and described second side are different two sides；The end that is electrically connected to each other of two adjacent elements is located at the upward the same side of the wireline reel.It can reduce the natural inductance of impulse capacitor through the above scheme.
Description
Technical field
The present invention relates to technical field of electric power more particularly to a kind of impulse capacitors.
Background technique
Impulse capacitor is widely used in high voltage or heavy current test, high-energy physics, Qiang Chong as energy storage components
Hit light source, in laser technology isopulse power device.In certain special dimensions, need to utilize impulse capacitor and high-speed switch
It cooperates and generates the high-voltage pulse that forward position is only several nanoseconds.
Existing high-voltage pulse capacitor is to determine element size and element according to capacity using film capacitor element is flattened
Series-parallel number, and realized by modes such as connection sheets, this kind of structure design is so that the natural inductance of high-voltage pulse capacitor is usual
Greater than 100nH, along with the inductance of the more complex external circuits such as switch and connection line, the inductance of entire discharge loop can be more
Greatly.Therefore, it is real to be unable to satisfy fast electric discharge far below the numerical value needed for the discharge frequency in natural inductance and the constituted circuit of capacitor
Border application requirement.
Summary of the invention
In view of this, the present invention provides a kind of impulse capacitor, to reduce the natural inductance of impulse capacitor.
To achieve the goals above, the present invention uses following scheme:
In an embodiment of the invention, impulse capacitor, comprising: at least one element coaxially wound；It is each described
Element includes: at least one first pole plate, at least one second pole plate and at least one dielectric coaxially wound；Described
One pole plate and second pole plate are arranged alternately, and the dielectric is set to adjacent first pole plate and described second
Between pole plate；Each first pole plate of each element is located at the element in one end electricity of the first upward side of wireline reel
It links together, each second pole plate of each element is located at the element in the upward second side of the wireline reel
One end is electrically connected；First side and described second side are different two sides；Two adjacent elements it is mutual
Electric connecting terminal is located at the upward the same side of the wireline reel.
In an embodiment of the invention, two adjacent elements are electrically connected using noninductive winding.
In an embodiment of the invention, first pole plate is located at one end puncture of described second side to first pole
The inside in space between the inside and outside two neighboring dielectric of plate, second pole plate are located at one end contracting of first side
The inside in space between the inside and outside two neighboring dielectric of second pole plate；First pole plate is located at described
One end of first side extend out to the outside in space between the inside and outside two neighboring dielectric of first pole plate, and described
One end that two pole plates are located at described second side extend out between the inside and outside two neighboring dielectric of second pole plate empty
Between outside；One end that each first pole plate of each element is located at first side is connected electrically in by warding off tin welding
Together, one end that each second pole plate of each element is located at described second side is connected electrically in one by warding off tin welding
It rises.
In an embodiment of the invention, in each element, the quantity of at least one first pole plate and institute
The quantity for stating at least one the second pole plate is identical；Second pole plate of the element of middle layer is previous with the middle layer
Second pole plate electrical connection of the element of layer, first pole plate of the element of the middle layer and the centre
First pole plate electrical connection of the element of the later layer of layer.
In an embodiment of the invention, liner is provided between two adjacent elements, and the liner is in phase
Two adjacent elements are electrically connected to each other space between two dielectrics adjacent inside and outside the puncture to the liner of end
Inside, the liner extend out to inside and outside the liner in the opposite end for being electrically connected to each other end of two adjacent elements
The outside in space between two adjacent dielectrics；By warding off tin welding electrical connection between two adjacent elements.
In an embodiment of the invention, impulse capacitor, further includes: interior electrode, external electrode and pedestal；The pedestal packet
The disc structure extended outward to form containing cylindrical structure and by one end of the cylindrical structure；The quantity of at least one element
For odd number；The innermost layer pole plate of the element of innermost layer is electrically connected with the interior electrode；The outermost element it is outermost
Layer pole plate is electrically connected with the external electrode；At least one described element housing is set to the cylindrical structure, and the interior electrode setting
In one end far from the disc structure of the cylindrical structure, the external electrode is set to the outer edge area of the disc structure
Domain.
In an embodiment of the invention, impulse capacitor, further includes: interior connection sheet and outer connection sheet；The interior electrode
It is annular with the external electrode；The interior connection sheet winding is set to the interior of the innermost layer pole plate of the element of innermost layer
Side, and be circumferentially equipped with the interior electrode of annular；The outer connection sheet winding is set to the outermost element
Outermost layer pole plate outside, and with annular the external electrode be circumferentially equipped with.
In an embodiment of the invention, impulse capacitor, further includes: hollow inner frame；At least one described element is same
Axis is wound in the hollow inner frame, and the hollow inner frame is sheathed on the cylindrical structure.
In an embodiment of the invention, the peripheral side of the annular interior electrode and the inner circumferential side of the interior connection sheet are matched
Close setting；The external electrode of annular is circumferentially arranged fluted, at least one element far from described in of the outer connection sheet
One end is embedded and is connected to the groove by warding off soldering.
In an embodiment of the invention, the cylindrical structure is hollow cylinder structure；Discharge switch is set to the sky
The inside of heart cylindrical structure, and be electrically connected respectively with the interior electrode and the external electrode.
Impulse capacitor of the invention, by coaxial winding element and its at least one of the first pole plate, at least one
Second pole plate and at least one dielectric, the distance between pole plate can be as close as possible.By by each first pole of each element
One side of plate is electrically connected, and another side of each second pole plate of each element is electrically connected, and makes adjacent
Two elements be electrically connected to each other end be located at the same side, the length of the line between interelement and pole plate can be shortened as far as possible,
Therefore, this programme can reduce the natural inductance of connecting line, to reduce the natural inductance of impulse capacitor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.In the accompanying drawings:
Fig. 1 is the part longitudinal profile structure schematic of the impulse capacitor of one embodiment of the invention；
Fig. 2 is the cross-sectional view of the part-structure of one embodiment of the invention；
Fig. 3 is the overlooking structure diagram of the impulse capacitor of one embodiment of the invention；
Fig. 4 is the present invention looks up structural representation of the impulse capacitor of one embodiment of the invention.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the accompanying drawing to this hair
Bright embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Fig. 1 is the part longitudinal profile structure schematic of the impulse capacitor of one embodiment of the invention.As shown in Figure 1, one
The impulse capacitor of a little embodiments, it may include: at least one element coaxially wound.Each element can include: coaxial volume
Around at least one first pole plate 4b1, at least one the second pole plate 4b2 and at least one dielectric 4a1.
The first pole plate 4b1 and the second pole plate 4b2 are arranged alternately, and the dielectric 4a1 be set to it is adjacent
The first pole plate 4b1 and the second pole plate 4b2 between.For example, can be by the first pole plate 4b1 successively stacked, second
Pole plate 4b2 and dielectric 4a1 therebetween, is wound using the first pole plate 4b1 on the inside of, winds multi-turn, it is available extremely
Few a first pole plate 4b1, at least one second pole plate 4b2 and dielectric 4a1 therebetween.As shown in Figure 1, adjacent two
Element can be opened by liner 4e or the isolation of other insulating materials.
The element can be what a capacity cell or multiple capacitors were connected by modes such as series, parallel
Equivalent capacity.The first pole plate 4b1 and second pole plate 4b2 can be used as the pole plate of capacitor, can be film-type pole plate, example
Such as, aluminium foil.Dielectric 4a1 can be films for electrical purposes, can be used as the medium between pole plate.First pole plate 4b1, this second
The quantity of pole plate 4b2 may each be one or more, in actual production, can be with up to tens.The quantity of element can root
It is determined according to the parameter request of impulse capacitor.
The quantity of the first pole plate 4b1 in the element of different layers can be different, the second pole plate 4b2 in the element of different layers
Quantity can be different.The first pole plate 4b1 and the second pole plate 4b2 preferably has identical quantity, in the case, no
The element (including first pole plate 4b1 therein, second pole plate 4b2 and dielectric 4a1) of same layer winding area (or
Spooling length in the case where of same size) can be identical, the electric field of impulse capacitor can be made more evenly with this.
Each first pole plate 4b1 of each element is located at the one of first side of the element on winding axial direction A
End is electrically connected, and each second pole plate 4b2 of each element is located at the element on the winding axial direction A
One end of second side is electrically connected, and first side and described second side are different two sides.On winding axial direction A, member
Part have two sides, for example, as shown in Figure 1, first side can for element, the first pole plate 4b1 and the second pole plate 4b2 upside,
The second side can be the downside of element, the first pole plate 4b1 and the second pole plate 4b2.For example, the element of innermost layer (first layer)
One end that each first pole plate 4b1 is located at the first side is electrically connected via short leg 4c, the member of innermost layer (first layer)
One end that each second pole plate 4b2 of part is located at second side is electrically connected via long lead 4d.In other embodiments,
It can be able to be element, the first pole plate 4b1 and the upper side positioning of the second pole plate 4b2 second side by first side, it can will be first
It is set to first side on the downside of part, the first pole plate 4b1 and the second pole plate 4b2.
The end that is electrically connected to each other of two adjacent elements is located at the upward the same side of the wireline reel.For example, first
The downside for being electrically connected to each other end and being respectively positioned on winding axial direction A between the element of layer and the element of the second layer, and can be under
The long lead 4d of side is electrically connected；The end that is electrically connected to each other between the element of the second layer and the element of third layer is respectively positioned on volume
Upside on axial A, and can be electrically connected via the long lead 4d of upside.
In the present embodiment, by coaxial winding element and its at least one of the first pole plate, at least one second pole plate
And at least one dielectric, the distance between pole plate can be as close as possible.By by the side of each first pole plate of each element
End is electrically connected, and another side of each second pole plate of each element is electrically connected, and makes two adjacent members
The end that is electrically connected to each other of part is located at the same side, can shorten the length of the line between interelement and pole plate as far as possible, therefore, we
Case can reduce the natural inductance of connecting line, to reduce the natural inductance of impulse capacitor.
In some embodiments, the element uses noninductive winding.With this, it can use adjacent elements electric current and reversely generate
Mutual inductance at least partly reduce the natural inductance of center 4 (may include all parts inside shell 5), compared to traditional arteries and veins
The method for rushing capacitor element inserting lead piece can reduce element self-induction itself by a relatively large margin.
In some embodiments, the first pole plate 4b1 is located at one end puncture of described second side to first pole plate
The inside in space, the second pole plate 4b2 are located at first side between the inside and outside two neighboring dielectric 4a1 of 4b1
One end puncture to the second pole plate 4b2 inside and outside between the two neighboring dielectric 4a1 space inside.Such as Fig. 1
It is shown, for example, the depth of the downside puncture of the first pole plate 4b1 of each element can be 5~10mm；Second pole plate of each element
The depth of the upside puncture of 4b2 can be 5~10mm.
One end that the first pole plate 4b1 is located at first side extend out to inside and outside adjacent the two of the first pole plate 4b1
The outside in space between a dielectric 4a1, one end that the second pole plate 4b2 is located at described second side extend out to described
The outside in space between the inside and outside two neighboring dielectric 4a1 of second pole plate 4b2.As shown in Figure 1, for example, each element
The first pole plate 4b1 upside stretch out length can be 3~5mm.
Each first pole plate 4b1 of each element is located at one end of first side by warding off tin welding electrical connection
Together, each second pole plate 4b2 of each element is located at one end of described second side by warding off tin welding electrical connection
Together.As shown in Figure 1, for example, the upside of each first pole plate 4b1 of the element of first layer (innermost layer) is obtained by warding off tin welding
To short leg 2a link together, the downside of each second pole plate 4b2 of the element of first layer (innermost layer) is by warding off tin welding
The long lead 4d of obtained downside links together；The upside of each first pole plate 4b1 of the element of the second layer is by warding off tin welding
The long lead 4d of obtained upside links together, and the downside of each second pole plate 4b2 of the element of the second layer is by warding off tin welding
The long lead 4d of obtained downside links together；Pass through on the upside of each first pole plate 4b1 of the element of third layer (outermost layer)
The long lead 4d for warding off the upside that tin welding obtains links together, each second pole plate 4b2's of the element of third layer (outermost layer)
Downside is linked together by warding off the short leg 4c for the downside that tin welding obtains.
It, can be convenient for by the by the way that by pole plate one end retraction dielectric, the other end protrudes dielectric in the present embodiment
One pole plate is electrically connected and is not connected simultaneously with the second pole plate, convenient for the second pole plate to be electrically connected and simultaneously not with first
Pole plate conducting.Protrusion pole plate wards off tin welding relative to lead wire welding structure, can reduce the natural inductance generated by connecting line.
In some embodiments, in each element, the quantity of at least one first pole plate 4b1 and it is described extremely
The quantity of a few second pole plate 4b2 is identical, two substrates of identical quantity, forms capacitor convenient for face.Middle layer it is described
The second pole plate 4b2 of element is electrically connected with the second pole plate 4b2 of the element of the preceding layer of the middle layer, institute
State first pole of the element of the first pole plate 4b1 of the element of middle layer and the later layer of the middle layer
Plate 4b1 electrical connection.Preceding layer, middle layer and later layer are three layers of continuous adjacent, for innermost layer element be not present with before it
The connection relationship of one layer elements, for outermost layer elements, there is no the connection relationships with its latter layer elements.As shown in Figure 1, example
Such as, the second pole plate 4b2 of the element of first layer (preceding layer) and the second pole plate 4b2 of the element of the second layer (middle layer) is electrically connected
It connects, the first pole plate 4b1 of the element of the second layer (middle layer) is electrically connected with the first pole plate 4b1 of the element of third layer (later layer)
It connects.
In other embodiments, the position of the first pole plate 4b1 and the second pole plate 4b2 inside and outside can exchange, between pole plate and first
Connection type between part can change accordingly.
In some embodiments, liner 4e is provided between two adjacent elements, and the liner 4e is adjacent
Two elements be electrically connected to each other inside and outside end puncture to the liner 4e between adjacent two elements in space
Portion, the liner 4e are extend out to inside and outside the liner 4e in the opposite end for being electrically connected to each other end of two adjacent elements
The outside in space between two adjacent elements；By warding off tin welding electrical connection between two adjacent elements.Such as Fig. 1 institute
Show, for example, the end that is electrically connected to each other of the element of the element and second layer of first layer is positioned at one end of downside, this is electrically connected to each other
The opposite end at end is one end of the upside of the element of first layer and the element of the second layer.Specifically, for example, the element of first layer and
Inside two adjacent dielectrics of the lower end retraction of liner 4e between the element of the second layer, the upper end protrusion two of liner 4e
Except a dielectric.
Liner 4e can be adopted and is made from an insulative material, such as can use films for electrical purposes, preferably can be using harder exhausted
Edge material is made.In other embodiments, multilayer films for electrical purposes can be set inside and outside liner 4e.
In the present embodiment, liner can play isolation and barrier action.Puncture design is carried out by the one end that will be padded, it can
In order to the connection of adjacent two elements.It, can be in order to completely cutting off adjacent two elements by the way that the other end of liner is carried out stretching design
In the part that should not be connected.
Fig. 2 is the cross-sectional view of the part-structure of one embodiment of the invention.Referring to Fig. 1 and Fig. 2, in some embodiments, institute
Impulse capacitor is stated, may also include that interior electrode 2, external electrode 3 and pedestal 1.The pedestal 1 may include cylindrical structure 11 and by institute
State the disc structure 12 that one end of cylindrical structure 11 extends outward to form.The cylindrical structure 11 can be to be solid or hollow, should
Disc structure 12 can be complete circle disk or the disk of intermediate aperture.The pedestal 1 can be various isolation materials.
The quantity of at least one element is odd number.The innermost layer pole plate of the element of innermost layer and the interior electrode
2 electrical connections；The outermost layer pole plate of the outermost element is electrically connected with the external electrode 3；At least one described element is arranged
In the cylindrical structure, and the interior electrode 2 is set to one end far from the disc structure of the cylindrical structure, described outer
Electrode 3 is set to the outer edge region of the disc structure.
The innermost layer pole plate, the outermost layer pole plate can be the first pole plate 4b1 or the second pole plate 4b2.When the member of innermost layer
When the first pole plate in part is located at the inside of the second pole plate, which is the first pole plate；When in the element of innermost layer
When second pole plate is located at the inside of the first pole plate, which is the second pole plate.When the first pole in outermost element
When plate is located at the outside of the second pole plate, which is the first pole plate；When the second pole plate in outermost element is located at
When the outside of the first pole plate, which is the second pole plate.As shown in Figure 1, the element of innermost layer (first layer) is most interior
Layer pole plate is the first pole plate 4b1, and the outermost layer pole plate of the element of outermost layer (third layer) is the second pole plate 4b2.
In some embodiments, the impulse capacitor may also include that the shell 5 of insulation, with pedestal 1, interior electrode 2 and
External electrode 3 matches, and forms enclosure space.
In some embodiments, the impulse capacitor may also include that interior connection sheet 2a and outer connection sheet 3a.In described
Electrode 2 and the external electrode 3 can be annular.The interior connection sheet 2a winding is set to the innermost layer of the element of innermost layer
The inside of pole plate, and be circumferentially equipped with the interior electrode 2 of annular, for example, the outer diameter of the interior electrode 2 of annular and interior company
The internal diameter of contact pin 2a is equal or close.The outer connection sheet 3a winding is set to the outermost layer pole plate of the outermost element
Outside, and be circumferentially equipped with the external electrode 3 of annular.Such as the internal diameter or average radial ruler of the external electrode 3 of annular
It is very little equal or close with the internal diameter of outer connection sheet 3a.
In the present embodiment, in the case where the quantity of element is odd number, the element of innermost layer connect in electrode one end and
One end of outermost element connection external electrode can be located on diagonal position, and the position of inner and outer electrodes can be prevented with this
Setting closely leads to adverse effect.Inner and outer electrodes are annular, and respectively with the interior connection sheet of the element of innermost layer and outermost
The outer connection sheet of the element of layer matches, and can reduce component lead inductance.
In some embodiments, the impulse capacitor may also include that hollow inner frame 6；At least one described element is same
Axis is wound in the hollow inner frame 6, and the hollow inner frame 6 is sheathed on the cylindrical structure.The hollow inner frame 6 for example may be used
Think hollow thin-wall insulation round tube.First pole plate 4b1, second pole plate 4b2 etc. are wound to hollow inner frame 6, by winding
Element housing, can be in order to assembling with this to pedestal 1.
In some embodiments, the peripheral side of the annular interior electrode 2 and the inner circumferential side of the interior connection sheet 2a cooperate
Setting；The external electrode 3 circumferentially arranged fluted 31 of annular, at least one element far from described in of the outer connection sheet 3
One end be embedded and be connected to the groove by warding off soldering.As depicted in figs. 1 and 2, the outer diameter of the annular interior electrode 2 can be with
It is equal with the internal diameter of interior connection sheet 2a, convenient for linking together.It not only can closely be pasted between interior electrode 2 and interior connection sheet 2a
It closes, it can also be by warding off tin welding connection.External electrode 3 can be embedded in the stepped ramp type annular that the fringe region of disc structure 12 opens up
In notch, upper surface and side can be flushed with the upper surface of disc structure 12 and side.The width of the groove 31 can for 1~
2mm。
In some embodiments, as shown in Fig. 2, the cylindrical structure 11 can be hollow cylinder structure.Discharge switch is set
It is placed in the inside of the hollow cylinder structure 11, and is electrically connected respectively with the interior electrode 2 and the external electrode 3.
In the present embodiment, discharge switch, discharge switch are placed using the inner space of the cylindrical structure among capacitor
Electrode directly contacted with the internal and external electrode of capacitor, be conducive to reduce external loop inductance.
Fig. 3 is the overlooking structure diagram of the impulse capacitor of one embodiment of the invention.Fig. 4 is one embodiment of the invention
The present invention looks up structural representation of impulse capacitor.Shown in as shown in Figure 1, Figure 3 and Figure 4, in some embodiments, two adjacent elements
Between tin welding connection can be warded off using at least one cyclic annular lead (such as long lead 4d).Each first in each element
Tin welding can be warded off using at least one cyclic annular lead (for example, short leg 4c or long lead 4d of upside) between pole plate 4b1 to exist
Together.The shape of cyclic annular lead can be fan shape.In the present embodiment, tin welding is warded off using cyclic annular lead, can to connect
Touching is good, reduces lead-in inductance.
In some embodiments, impulse capacitor is the coaxial configuration high-voltage pulse capacitor with low natural inductance, packet
Include pedestal 1, interior electrode 2, external electrode 3, center 4, shell 5 and inner frame 6.Pedestal 1 is the insulator of inverted " t " type structure, by position
Disk and intermediate hollow cylinder two parts composition in bottom.Interior electrode 2 is the conducting ring of abnormity, and internal diameter and pedestal 1 are hollow
The internal diameter of column part is identical, and the upper end of 1 hollow cylindrical part of pedestal is arranged in.External electrode 3 is insertion 1 integrated disc portions of pedestal
Conducting ring, outer diameter are identical as the outer diameter of 1 integrated disc portions of pedestal；Annular recess, recess width 1 is arranged in the upper surface of external electrode 3
~2mm.Shell 5 is the hollow cylinder insulator of thin-walled, and circular hole is opened in upper end, and circular hole position is contacted with the cooperation of the outside of interior electrode 2.
Inner frame 6 is hollow thin-wall insulation round tube, the outer surface tight fit of hollow cylindrical part in inner surface and pedestal 1.Center 4 is arranged
In in the enclosure space that pedestal 1 above-mentioned, interior electrode 2, external electrode 3 and shell 5 are constituted；Center 4 using inner frame 6 as spool into
Row winding.
In some embodiments, center 4 from inside to outside successively wind the 1st element 41, the 2nd element 42, the 3rd element 43 ...,
N-th element；Element may include films for electrical purposes 4a and two the first pole plate 4b1 and the second pole plate 4b2 made of aluminium foil.It is preferred that
, setting liner 4e between the ending of the 1st element 41 and the starting of the 2nd element 42, films for electrical purposes 4a is stretched out in the upper end for padding 4e
5~7mm of end, lower end retraction films for electrical purposes 4a 2~3mm of end；Between the ending of 2nd element 42 and the starting of the 3rd element 43
Setting liner 4e, pads upper end retraction films for electrical purposes 4a 2~3mm of end of 4e, lower end stretch out the end films for electrical purposes 4a 5~
7mm；..., and so on.Preferably, films for electrical purposes 4a is protruded in the upper end of the first pole plate 4b1, protrudes 3~5mm of length, lower end contracting
Enter films for electrical purposes 4a, 5~10mm of retraction depth；The upper end retraction films for electrical purposes 4a of second pole plate 4b2, retraction 5~10mm of depth,
Films for electrical purposes 4a is protruded in lower end, protrudes 3~5mm of length.Preferably, interior connection sheet 2a is inserted when the 1st element 41 winds first lap
Enter in the first pole plate 4b1 and stretches out 3~5mm of pole plate end；Outer connection sheet 3a is inserted into second when the n-th element winds last lap
In pole plate 4b2 and stretch out 3~5mm of pole plate end.Preferably, the contact of the extension of interior connection sheet 2a and interior 2 lower end of electrode
Face uses and wards off tin welding；It is filled in the annular recess of the extension insertion external electrode 3 of outer connection sheet 3a and with tin material and is welded.
In some embodiments, short using interrupted ring-type between interior connection sheet 2a and the first pole plate 4b1 of the 1st element 41
Lead 4c wards off tin welding.Preferably, it is used between the second pole plate 4b2 of the 1st element 41 and the second pole plate 4b2 of the 2nd element 42
Interrupted cyclic annular long lead 4d wards off tin welding；Between first pole plate 4b1 of the 2nd element 42 and the first pole plate 4b1 of the 3rd element 43
Tin welding is warded off using interrupted cyclic annular long lead 4d；..., and so on.Preferably, the second pole of outer connection sheet 3a and the n-th element
Tin welding is warded off using interrupted cyclic annular short leg 4c between plate 4b2.Preferably, the preferred odd number of element number of elements n.
To make those skilled in the art be best understood from the present invention, it will illustrate implementation of the invention with specific embodiment below
Mode.
Impulse capacitor can be a kind of coaxial configuration high-voltage pulse capacitor with low natural inductance, preferred to tie
Structure, as depicted in figs. 1 and 2, it may include pedestal 1, interior electrode 2, external electrode 3, center 4 and inner frame 6 can also include shell 5.
Pedestal 1 can be the insulator of inverted " t " type structure or T-shape structure, can be by being located at the disc structure 12 of bottom and intermediate
11 two parts of hollow cylinder structure composition.Interior electrode 2 can be the conducting ring of abnormity, the hollow cylinder knot of internal diameter and pedestal 1
The internal diameter of structure 11 is identical, and can be set in the upper end of the hollow cylinder structure 11 of pedestal 1.External electrode 3 can be insertion pedestal 1
Disc structure 12 conducting ring, outer diameter is identical as the outer diameter of disc structure 12 of pedestal 1.The upper surface of external electrode 3 can be set
Annular recess 31 is set, 31 width of groove can be 1~2mm.Shell 5 can be the hollow cylinder insulator of thin-walled, and upper end can be with
Circular hole is opened, circular hole position is contacted with the cooperation of the outside of interior electrode 2.
Inner frame 6 can be hollow thin-wall insulation round tube, the outer surface of hollow cylindrical structure 11 in inner surface and pedestal 1
Tight fit.
Center 4 can be set in the enclosure space being made of pedestal 1, interior electrode 2, external electrode 3 and shell 5, with in-seam
Frame 6 is wound as spool, successively wind from inside to outside the 1st element 41, the 2nd element 42, the 3rd element 43 ..., the n-th element.
The numerical value of n is determined according to the parameter request of pulsed capacitance.
Wherein, aluminium foil (first pole plate 4b1 and second pole plate 4b2) of the element by films for electrical purposes 4a and two as pole plate into
Row is wound, and aluminium foil is protruded using one end, the structure of other end retraction.It can be according to the potential difference between element, two
Setting liner 4e, plays isolation and barrier action between adjacent elements.In isolated location, the end for padding 4e can stretch out electrician
5~7mm of film end, and the other end can be with retraction films for electrical purposes 2~3mm of end, damage when warding off tin welding to avoid aluminium foil.
Interior connection sheet 2a and outer connection sheet 3a can be respectively set outside center 4, wherein interior connection sheet 2a is at the 1st element volume 41
It is inserted into when around first lap in the first aluminium foil 4b1 and stretches out 3~5mm of aluminium foil end；Outer connection sheet 3a winds last in the n-th element
It is inserted into when circle in the second aluminium foil 4b2 and stretches out 3~5mm of aluminium foil end.
Center 4 can be spool with inner frame 6, first wind the films for electrical purposes 4a of a fixing turn, then bring into when implementing
Aluminium foil (the first pole plate 4b1 and the second pole plate 4b2), while interior connection sheet 2a is inserted into the first aluminium foil (the first pole plate 4b1), it presses
It is wound to the completion of the 1st element 41 according to the aluminium foil length of setting, disconnects aluminium foil (the first pole plate 4b1 and the second pole plate 4b2), is not breaking
Insertion liner 4e, winding two bring aluminium foil (the first pole plate 4b1 and the second pole plate 4b2) into after enclosing again in the films for electrical purposes 4a opened,
Start to wind the 2nd element 42, successively carry out until the n-th element later.When the n-th element winds last lap, by outer connection sheet
It is wound to element completion in 3a insertion the second aluminium foil (the second pole plate 4b2), disconnects aluminium foil (the first pole plate 4b1 and the second pole plate
4b2), it is truncated after continuing two circle of winding with the films for electrical purposes not disconnected, is fixed with adhesive tape, complete the winding of center 4.
As shown in Figure 3 and Figure 4, using disconnected between interior connection sheet 2a and the first aluminium foil (the first pole plate 4b1) of the 1st element 41
Continuous cyclic annular short leg 4c wards off tin welding, the second aluminium of the second aluminium foil (the second pole plate 4b2) and the 2nd element 42 of the 1st element 41
Tin welding is warded off using interrupted cyclic annular long lead 4d between foil (the second pole plate 4b2).As shown in figure 4, the first aluminium of the 2nd element 42
It is warded off between foil (the first pole plate 4b1) and the first aluminium foil (the first pole plate 4b1) of the 3rd element 43 using interrupted cyclic annular long lead 4d
Tin welding；It is warded off between outer connection sheet 3a and the second aluminium foil (the second pole plate 4b2) of the n-th element using interrupted cyclic annular short leg 4c
Tin welding.
In preferred embodiment, the center 4 with inner frame 6 that winding is completed is inserted in the cylindrical structure 11 of pedestal 1, and is protected
In the annular recess 31 for demonstrate,proving the downward extension insertion external electrode 3 of outer connection sheet 3a, which can be filled with tin material and be welded.
Interior electrode 2 can be adhered to the upper end of the cylindrical structure 11 of pedestal 1, the extension for keeping interior connection sheet 2a upward and interior electrode
The circular arc face contact of 2 lower ends, the position can equally use and ward off tin welding.The contact portion of shell 5 and interior electrode 2 and external electrode 3
Position bonding, completes the assembly of entire capacitor.
The impulse capacitor of the embodiment of the present invention, the noninductive winding protruded using aluminium foil, compared to traditional pulse capacitor
The method of element inserting lead piece can reduce element self-induction itself by a relatively large margin；Series connection between element relies on aluminium foil protrusion
Using alternately welding, the mutual inductance reversely generated using adjacent elements electric current can be with the natural inductance of partial offset center for position；First
The head end of a element and the end setting connection sheet of the last one element are directly electrically connected with capacitor internal and external electrode, can reduce
Lead-in inductance.Further, the multilaminate coiled voltage for bearing discrete component is not high, guarantees that the capacitor can be in higher electricity
It works under the conditions of pressure；The center radial electric field of annular roll is evenly distributed, and is conducive to the stability for improving capacitor operation；Discontinuously
Cricoid lead welding takes into account the reliability connected between element and the vacuum-impregnated convenience of center.Further, in capacitor
Between cylindrical space can place discharge switch, the electrode of discharge switch is directly contacted with the internal and external electrode of capacitor, favorably
In the inductance for reducing external loop.
In the description of this specification, reference term " one embodiment ", " specific embodiment ", " some implementations
Example ", " such as ", the description of " example ", " specific example " or " some examples " etc. mean it is described in conjunction with this embodiment or example
Particular features, structures, materials, or characteristics are included at least one embodiment or example of the invention.In the present specification,
Schematic expression of the above terms may not refer to the same embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.Each embodiment
Involved in the step of sequence be used to schematically illustrate implementation of the invention, sequence of steps therein is not construed as limiting, can be as needed
It appropriately adjusts.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of impulse capacitor characterized by comprising at least one element coaxially wound；Each element includes:
The first pole plate of at least one coaxially wound, at least one second pole plate and at least one dielectric；
First pole plate and second pole plate are arranged alternately, and the dielectric is set to adjacent first pole plate
Between second pole plate；Each first pole plate of each element be located at the element wireline reel it is upward first
One end of side is electrically connected, and it is upward in the wireline reel that each second pole plate of each element is located at the element
One end of second side be electrically connected；First side and described second side are different two sides；Described in adjacent two
The end that is electrically connected to each other of element is located at the upward the same side of the wireline reel.
2. impulse capacitor as described in claim 1, which is characterized in that the element is wound using noninductive winding.
3. impulse capacitor as described in claim 1, which is characterized in that first pole plate is located at one end of described second side
Inside and outside puncture to first pole plate between the two neighboring dielectric space inside, second pole plate is located at institute
State the inside in space between the two neighboring dielectric inside and outside one end puncture to second pole plate of the first side；It is described
One end that first pole plate is located at first side is extend out between the inside and outside two neighboring dielectric of first pole plate
The outside in space, one end that second pole plate is located at described second side extend out to the inside and outside two neighboring institute of second pole plate
State the outside in space between dielectric；One end that each first pole plate of each element is located at first side passes through
It wards off tin welding to be electrically connected, each second pole plate of each element is located at one end of described second side by warding off tin
Welding is electrically connected.
4. impulse capacitor as claimed in claim 2, which is characterized in that in each element, it is described at least one
The quantity of one pole plate is identical with the quantity of at least one second pole plate；Second pole plate of the element of middle layer with
Second pole plate of the element of the preceding layer of the middle layer is electrically connected, and described the of the element of the middle layer
One pole plate is electrically connected with first pole plate of the element of the later layer of the middle layer.
5. impulse capacitor as claimed in claim 4, which is characterized in that be provided with lining between two adjacent elements
Pad, and the liner is electrically connected to each other adjacent inside and outside the puncture to the liner of end two in two adjacent elements
The inside in space between dielectric, the liner are stretched out in the opposite end for being electrically connected to each other end of two adjacent elements
To the outside in space between inside and outside two adjacent dielectrics of the liner；By warding off between two adjacent elements
Tin welding electrical connection.
6. impulse capacitor as claimed in claim 4, which is characterized in that further include: interior electrode, external electrode and pedestal；It is described
Pedestal includes cylindrical structure and the disc structure extended outward to form by one end of the cylindrical structure；
The quantity of at least one element is odd number；The innermost layer pole plate of the element of innermost layer is electrically connected with the interior electrode
It connects；The outermost layer pole plate of the outermost element is electrically connected with the external electrode；At least one described element housing is set to described
Cylindrical structure, and the interior electrode is set to one end far from the disc structure of the cylindrical structure, the external electrode is set
It is placed in the outer edge region of the disc structure.
7. impulse capacitor as claimed in claim 6, which is characterized in that further include: interior connection sheet and outer connection sheet；
The interior electrode and the external electrode are annular；The interior connection sheet winding is set to the element of innermost layer most
The inside of internal layer pole plate, and be circumferentially equipped with the interior electrode of annular；The outer connection sheet winding is set to outermost
The outside of the outermost layer pole plate of the element of layer, and be circumferentially equipped with the external electrode of annular.
8. impulse capacitor as claimed in claim 6, which is characterized in that further include: hollow inner frame；At least one described member
Part is coaxially wound in the hollow inner frame, and the hollow inner frame is sheathed on the cylindrical structure.
9. impulse capacitor as claimed in claim 7, which is characterized in that the peripheral side of the annular interior electrode with it is described interior
The inner circumferential side of connection sheet is equipped with；The external electrode of annular is circumferentially arranged fluted, the separate institute of the outer connection sheet
The one end for stating at least one element is embedded and is connected to the groove by warding off soldering.
10. impulse capacitor as claimed in claim 6, which is characterized in that the cylindrical structure is hollow cylinder structure；Electric discharge
Switch is set to the inside of the hollow cylinder structure, and is electrically connected respectively with the interior electrode and the external electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423942.5A CN109524240B (en) | 2018-11-27 | 2018-11-27 | Pulse capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423942.5A CN109524240B (en) | 2018-11-27 | 2018-11-27 | Pulse capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109524240A true CN109524240A (en) | 2019-03-26 |
| CN109524240B CN109524240B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811423942.5A Active CN109524240B (en) | 2018-11-27 | 2018-11-27 | Pulse capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115359982A (en) * | 2022-09-15 | 2022-11-18 | 深圳市韬略科技有限公司 | Laminated static suppressor and packaging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07161577A (en) * | 1993-12-08 | 1995-06-23 | Sony Tektronix Corp | Pole type capacitor |
| JPH09232183A (en) * | 1996-02-19 | 1997-09-05 | Marcon Electron Co Ltd | Film capacitor |
| CN203103136U (en) * | 2013-01-24 | 2013-07-31 | 彭春燕 | Capacitor equipped with heat radiation device |
| CN205692701U (en) * | 2016-06-13 | 2016-11-16 | 北京华电泰力电力技术有限公司 | The high-voltage pulse capacitor that a kind of element not group is quick-fried |
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2018
- 2018-11-27 CN CN201811423942.5A patent/CN109524240B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07161577A (en) * | 1993-12-08 | 1995-06-23 | Sony Tektronix Corp | Pole type capacitor |
| JPH09232183A (en) * | 1996-02-19 | 1997-09-05 | Marcon Electron Co Ltd | Film capacitor |
| CN203103136U (en) * | 2013-01-24 | 2013-07-31 | 彭春燕 | Capacitor equipped with heat radiation device |
| CN205692701U (en) * | 2016-06-13 | 2016-11-16 | 北京华电泰力电力技术有限公司 | The high-voltage pulse capacitor that a kind of element not group is quick-fried |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115359982A (en) * | 2022-09-15 | 2022-11-18 | 深圳市韬略科技有限公司 | Laminated static suppressor and packaging method |
| CN115359982B (en) * | 2022-09-15 | 2023-11-14 | 深圳市韬略科技有限公司 | Lamination type electrostatic inhibitor and packaging method |
Also Published As
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|---|---|
| CN109524240B (en) | 2021-05-25 |
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Effective date of registration: 20210817 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 floor 5-9, block C, No.7 tangxing Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN XIDIAN ELECTRIC RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA XD ELECTRIC Co.,Ltd. |
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Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |