CN204289096U - A kind of low impedance at high frequency solid-state capacitor - Google Patents

A kind of low impedance at high frequency solid-state capacitor Download PDF

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Publication number
CN204289096U
CN204289096U CN201520018225.XU CN201520018225U CN204289096U CN 204289096 U CN204289096 U CN 204289096U CN 201520018225 U CN201520018225 U CN 201520018225U CN 204289096 U CN204289096 U CN 204289096U
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CN
China
Prior art keywords
plug
aluminium foil
core body
stitch
coated
Prior art date
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Expired - Fee Related
Application number
CN201520018225.XU
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Chinese (zh)
Inventor
郭莎
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JIEFA ELECTRONIC Co Ltd
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JIEFA ELECTRONIC Co Ltd
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Priority to CN201520018225.XU priority Critical patent/CN204289096U/en
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Publication of CN204289096U publication Critical patent/CN204289096U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of low impedance at high frequency solid-state capacitor, it includes stitch, plug, aluminium foil, packing paper, aluminum hull, wherein, be nested in the middle part of stitch in plug, its one end is stretched out plug and is formed pin, the other end is connected with aluminium foil, the connecting portion of itself and aluminium foil is coated with packing paper, aluminium foil after covering packing paper and stacked rear winding of electrolytic paper staggered floor form core body, core body outer peripheral face is coated with sealant layer, sealant layer is wound around two circles by adhesive tape and is formed on core body outer peripheral face, adhesive tape one end plug after winding is conflicted and is formed sealing, the other end flushes with core body termination, aluminum hull is coated on outside core body and plug, and the aluminum hull be positioned at outside plug passes through compacting formation group grain ring.Capacitance structure after employing this programme is simple, long service life, result of use are good.

Description

A kind of low impedance at high frequency solid-state capacitor
Technical field
The utility model relates to a kind of capacitance technology field, refers in particular to a kind of low impedance at high frequency solid-state capacitor.
Background technology
At present, as the significant components of the module such as inversion, transformation in new energy system, aluminium electrolytic capacitor is expected to open up the application market made new advances in the new energy such as solar energy, wind energy system.In in the past more than 20 year, wind power generation constantly surmounts the development speed of its expection, remains the status of the fastest energy of world development always.Global wind-powered electricity generation adds up the average growth rate per annum of installed capacity close to 30% nearly ten years.Along with " energy-saving and emission-reduction " being day by day rooted in the hearts of the people of thought, converter technique, obtains at all fields of national economy and applies more widely, with wind power generation, photovoltaic generation is the green energy resource field of representative, and urban rail transit construction like a raging fire, all huge demand is proposed to aluminium electrolytic capacitor, therefore to capacitor high voltage withstanding, adverse circumstances, long-life, the requirement of resistance to ripple aspect is more harsh, but also starts the new market of capacitor and development.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides the low impedance at high frequency solid-state capacitor that a kind of structure is simple, long service life, result of use are good.
For achieving the above object, technical scheme provided by the utility model is: a kind of low impedance at high frequency solid-state capacitor, it includes stitch, plug, aluminium foil, packing paper, aluminum hull, wherein, be nested in the middle part of stitch in plug, its one end is stretched out plug and is formed pin, the other end is connected with aluminium foil, the connecting portion of itself and aluminium foil is coated with packing paper, aluminium foil after covering packing paper and stacked rear winding of electrolytic paper staggered floor form core body, core body outer peripheral face is coated with sealant layer, sealant layer is wound around two circles by adhesive tape and is formed on core body outer peripheral face, adhesive tape one end plug after winding is conflicted and is formed sealing, the other end flushes with core body termination, aluminum hull is coated on outside core body and plug, and the aluminum hull be positioned at outside plug passes through compacting formation group grain ring.
Described stitch one end is provided with joint pin, and joint pin is nested in plug, and the external diameter of joint pin is greater than stitch external diameter, and the connecting portion of joint pin and stitch adopts tapering transition; The joint pin other end is provided with draw-in groove, and brace one end is nested in draw-in groove and by being welded and fixed, the nail joint of the brace other end is on capacitor aluminium foil, and the contact-making surface of described brace and capacitor aluminium foil is curved, and its radian matches with the coil diameter of capacitor aluminium foil; Brace two ends adopt arc rounding off.
The utility model is after employing such scheme, and select positive paper tinsel epithelium withstand voltage thicker, electrolytic paper density is high, and thickness is thicker, electrolyte flash over voltage >600V, therefore electrical conductivity is low, and viscosity is high.During nail volume, guide pin adopts arc brace, by nail joint impedance Control at below 1.5m Ω, to reduce the caloric value of nail joint position, increase packing paper in positive and negative paper tinsel nail joint part, cause puncture short bad to prevent contact site because caloric value increase makes electrolytic paper dielectric strength decline.Capacitance structure after employing this programme is simple, long service life, result of use are good.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of sealant layer.
Fig. 3 is the generalized section of Fig. 1.
Embodiment
Below in conjunction with institute's drawings attached, the utility model is described in further detail, preferred embodiment of the present utility model is: see accompanying drawing 1 to accompanying drawing 3, a kind of low impedance at high frequency solid-state capacitor described in the present embodiment includes stitch 1, plug 2, aluminium foil 3, packing paper 4, aluminum hull 5, wherein, be nested in plug 2 in the middle part of stitch 1, its one end is stretched out plug 2 and is formed pin, the other end is connected with aluminium foil 3, the connecting portion of itself and aluminium foil 3 is coated with packing paper 4, aluminium foil after covering packing paper 4 and stacked rear winding of electrolytic paper 5 staggered floor form core body, core body outer peripheral face is coated with sealant layer 6, sealant layer 6 is wound around two circles by adhesive tape and is formed on core body outer peripheral face, adhesive tape one end plug 2 after winding is conflicted and is formed sealing, the other end flushes with core body termination, aluminum hull 5 is coated on outside core body and plug 2, and the aluminum hull 5 be positioned at outside plug 2 passes through compacting formation group grain ring 7, described stitch 1 one end is provided with joint pin 8, and joint pin 8 is nested in plug 2, and the external diameter of joint pin 8 is greater than stitch 1 external diameter, and joint pin 8 adopts tapering transition with the connecting portion of stitch 1, joint pin 8 other end is provided with draw-in groove 9, brace 10 one end to be nested in draw-in groove 9 and by being welded and fixed, the nail joint of brace 10 other end is on capacitor aluminium foil, and described brace 10 is curved with the contact-making surface of capacitor aluminium foil, and its radian matches with the coil diameter of capacitor aluminium foil, brace 10 two ends adopt arc rounding off.This device is after employing such scheme, and select positive paper tinsel epithelium withstand voltage thicker, electrolytic paper density is high, and thickness is thicker, electrolyte flash over voltage >600V, therefore electrical conductivity is low, and viscosity is high.During nail volume, guide pin adopts arc brace, by nail joint impedance Control at below 1.5m Ω, to reduce the caloric value of nail joint position, increase packing paper in positive and negative paper tinsel nail joint part, cause puncture short bad to prevent contact site because caloric value increase makes electrolytic paper dielectric strength decline.Capacitance structure after employing this programme is simple, long service life, result of use are good.
The embodiment of the above is only the preferred embodiment of the utility model, not limits practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection range of the present utility model.

Claims (2)

1. a low impedance at high frequency solid-state capacitor, it is characterized in that: it includes stitch (1), plug (2), aluminium foil (3), packing paper (4), aluminum hull (5), wherein, stitch (1) middle part is nested in plug (2), its one end is stretched out plug (2) and is formed pin, the other end is connected with aluminium foil (3), the connecting portion of itself and aluminium foil (3) is coated with packing paper (4), aluminium foil after covering packing paper (4) and stacked rear winding of electrolytic paper (5) staggered floor form core body, core body outer peripheral face is coated with sealant layer (6), sealant layer (6) is wound around two circles by adhesive tape and is formed on core body outer peripheral face, conflict and form sealing in adhesive tape one end plug (2) after winding, the other end flushes with core body termination, aluminum hull (5) is coated on core body and plug (2) outside, is positioned at the aluminum hull (5) in plug (2) outside by compacting formation group grain ring (7).
2. a kind of low impedance at high frequency solid-state capacitor according to claim 1, it is characterized in that: stitch (1) one end is provided with joint pin (8), joint pin (8) is nested in plug (2), the external diameter of joint pin (8) is greater than stitch (1) external diameter, and joint pin (8) adopts tapering transition with the connecting portion of stitch (1); Joint pin (8) other end is provided with draw-in groove (9), brace (10) one end to be nested in draw-in groove (9) and by being welded and fixed, brace (10) other end nail joint is on capacitor aluminium foil, described brace (10) is curved with the contact-making surface of capacitor aluminium foil, and its radian matches with the coil diameter of capacitor aluminium foil; Brace (10) two ends adopt arc rounding off.
CN201520018225.XU 2015-01-13 2015-01-13 A kind of low impedance at high frequency solid-state capacitor Expired - Fee Related CN204289096U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520018225.XU CN204289096U (en) 2015-01-13 2015-01-13 A kind of low impedance at high frequency solid-state capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520018225.XU CN204289096U (en) 2015-01-13 2015-01-13 A kind of low impedance at high frequency solid-state capacitor

Publications (1)

Publication Number Publication Date
CN204289096U true CN204289096U (en) 2015-04-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520018225.XU Expired - Fee Related CN204289096U (en) 2015-01-13 2015-01-13 A kind of low impedance at high frequency solid-state capacitor

Country Status (1)

Country Link
CN (1) CN204289096U (en)

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150422

Termination date: 20180113

CF01 Termination of patent right due to non-payment of annual fee