CN105097285B - New type explosion proof thin film capacitor - Google Patents
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- CN105097285B CN105097285B CN201510581522.XA CN201510581522A CN105097285B CN 105097285 B CN105097285 B CN 105097285B CN 201510581522 A CN201510581522 A CN 201510581522A CN 105097285 B CN105097285 B CN 105097285B
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Abstract
The present invention relates to new type explosion proof thin film capacitor, belong to the connected mode using " after first going here and there simultaneously " between capacitor area, core, reduction core punctures the influence to capacitor；Bypass module parallel connection energy storage is smaller, and easy damaged does not close on core or to casing insulation when core punctures；Heat transfer effect is improved using heat-conduction epoxy resin, conduction oil, arc-shaped concave, is conducive to preventing the expansion or shell blast of failure；Over-pressed current-limiting apparatus, which is prevented effectively from, to be punctured caused by the electric current in bypass module circuit is excessive and burns circuit or blast, it is ensured that the electric current and voltage in bypass module are continual and steady；Over-pressure safety device causes electrical equipment from overvoltage, the impact of high pressure.The capacitor arrangement is compact, save installing space, operation troubles rate reduces, overall losses are relatively low, cost is relatively low, advantageously reduce workmanship defect；Electrical equipment capacity is big, core quantity is few, and production efficiency is higher, and explosion-proof performance is good.
Description
Technical field
The present invention relates to a kind of thin film capacitor, more particularly to new type explosion proof thin film capacitor.
Background technology
Power equipment manufacturing industry generallys include generating equipment industry, power transmission and transformation primary equipment industry, secondary device industry, electricity
Four sub-industries of power environmental protection industry (epi).The development of power equipment industry relies on the development of power industry, the scale of Electricity Investment and side
To the development for directly affecting power equipment industry.
Thin film capacitor, for power system and a kind of capacitor of electrical equipment.Thin film capacitor includes shunt capacitance
Device, ac filter capacitor and series capacitor.Because the core solid dielectric insulation in any thin film capacitor all has sky
The local quality defect such as gap, crackle or conductive impurities, the defect forms electric weakness, the electric weakness medium in capacitor work
Meeting accelerated ageing, causes component breakdown.High-power thin film capacitor is big due to its power, and use occasion is along with high pressure, big electricity
The environment of stream, its internal electric elements cut off the electricity of the overrate of capacitor internal using inline fuse technology in time
Stream, prevents capacitor from continuing live line work and causing blast, this is traditional method for many years.But this method has the disadvantage fuse
After fusing, the circuit in electric elements is in open circuit, causes capacitor cisco unity malfunction.Also, high-power thin film capacitor
After continuous use for a long time or the use of long-time excessively stream or for a long time over-pressed use, it easily gathers substantial amounts of heat, existing
Capacitor is because pursue close structure, and its heat dispersion is poor, and capacitor case easily because crossing thermal expansion deformation, causes shell machinery
Performance is further deteriorated, after capacitor internal electric elements excessively stream or overvoltage, causes component breakdown, produces a large amount of gases,
Explosion accident, poor in anti-explosion property easily occur for shell mechanical degradation.
The content of the invention
The present invention is in view of the deficienciess of the prior art, there is provided new type explosion proof thin film capacitor, concrete technical scheme is such as
Under：
Be provided with new type explosion proof thin film capacitor, including shell, cover plate and electrical equipment, cover plate the first binding post and
Second binding post, the shell is internally provided with inner casing, is provided with gap, the left and right two sides of inner casing between shell and inner casing
Arc-shaped concave is respectively arranged with, electrical equipment is arranged on the inside of inner casing, is to be interference fitted and connect between electrical equipment and concave surface
Press tight；The electrical equipment is provided with multigroup bypass module, over-pressure safety device, first input end and the first output end, other
It is connected after being connected in parallel between the component of road with first input end and the first output end, first input end and the first binding post connect
Connect, the first output end and the connection of the second binding post；The bypass module is provided with core component and over-pressed current-limiting apparatus, core
Component and over-pressed current-limiting apparatus are connected in series, and core component is provided between multiple core, core and is connected in series；The overvoltage is protected
Protection unit is provided with the second input and the second output end, the second input and first input end connection, the second output end and the
One output end is connected.
As the improvement of above-mentioned technical proposal, the over-pressed current-limiting apparatus is provided with current-limiting reactor, IGCT main valve,
One equalizing resistance, the second equalizing resistance, arrester and the auxiliary valve of IGCT, current-limiting reactor and IGCT main valve are connected in series, kept away
Thunder device and the auxiliary valve of IGCT are connected in parallel after being connected in series with IGCT main valve, and the first equalizing resistance and arrester are connected in parallel,
Second equalizing resistance and the auxiliary valve of IGCT are connected in parallel.
As the improvement of above-mentioned technical proposal, the over-pressure safety device be provided with thyristor valve, reactor, breaker and
Damping resistance, is connected in series thyristor valve, thyristor valve and the second output end between second input and the second output end
Between be connected in series reactor, the input of damping resistance and the connection of the second input, the output end and breaker of damping resistance
Input connection, the output end of breaker and the second output end connection.
As the improvement of above-mentioned technical proposal, the upper end of the shell is provided between multiple fixed angle plates, fixed angle plate
It is symmetric, fixed angle plate center is provided with circular hole.
As the improvement of above-mentioned technical proposal, be provided with fuel feed hole and steam vent on the cover plate, fuel feed hole and shell and
Gap connection between inner casing, the gap between steam vent and shell and inner casing is connected.
As the improvement of above-mentioned technical proposal, heat-conduction epoxy resin, shell are provided between the inner casing and electrical equipment
Conduction oil is provided between inner casing.
As the improvement of above-mentioned technical proposal, the group number of the bypass module is less than or equal to 12 groups, single core component
In core quantity be less than or equal to 6.
The advantageous effects of new type explosion proof thin film capacitor of the present invention：1）, capacitor compact conformation, save peace
Dress space, operation troubles rate are reduced, overall losses are relatively low, cost is relatively low, advantageously reduce workmanship defect；Electrical equipment holds
Amount is big, core quantity is few, and production efficiency is higher；
2）, the bypass module energy storage in parallel in capacitor it is smaller, easy damaged does not close on core or to shell when core punctures
Insulation, is conducive to preventing the expansion or shell blast of failure；
3）, heat-conduction epoxy resin and conduction oil improve the radiating efficiency of capacitor, reduction blast probability；Arc-shaped concave is with leading
The relative increase of contact area between deep fat, improves the heat transfer effect of conduction oil and inner housing inner heat, on the other hand, due to
Arc is most stable of shape, and in the presence of arc-shaped concave, inner casing is difficult to be deformed, reduction shell blast probability, is carried
The explosion-proof performance of high capacitance；
4）, connected mode between core using " after first going here and there simultaneously ", reduce single core and puncture that caused other are intact
Overvoltage in core, and the capacitance variations and limitation branch current of capacitor are reduced, core can hit two-plate puncturing
A firm welding of formation is worn, the core after series connection can work on, and reduction core punctures the influence to capacitor；
5）, over-pressed current-limiting apparatus is prevented effectively from and punctures caused by the electric current in bypass module circuit is excessive and burn circuit
Or blast, and the electric current for flowing through core breakdown point is limited no more than 60A, it is ensured that the electric current and voltage flowed through in bypass module is held
It is continuous stable；Under any system condition, capacitor residue voltage is restricted to by normal system voltage peak by switching arrester；
Due to the residual voltage of limiting capacitance device, the terminal voltage of IGCT main valve is also limited, the series connection number of valve is reduced, reduces valve
Running wastage, non-transient switching can be realized, while reducing the voltage stress brought after valve false triggering to itself；Overvoltage protection
Most of energy is absorbed by arrester during action, and the auxiliary valve of IGCT is instantaneous conducting；Very little is lost, without taking other again
Accelerate cooling heat dissipation technology；
6）, over-pressure safety device cause electrical equipment from overvoltage, high pressure impact；Change IGCT under overpressure situation
The angle of flow of valve, voltage is reduced using inductive load；Thyristor valve connects to be formed with the reactor of low-quality factor, low reactance
One protection branch road, and realize overvoltage protection with breaker cooperation.
Brief description of the drawings
Fig. 1 is new type explosion proof thin film capacitor structure schematic diagram of the present invention；
Fig. 2 is inner casing configuration schematic diagram of the present invention；
Fig. 3 is electrical equipment structural representation of the present invention；
Fig. 4 is over-pressed current-limiting apparatus structural representation of the present invention；
Fig. 5 is over-pressure safety device structural representation of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As depicted in figs. 1 and 2, Fig. 1 is new type explosion proof thin film capacitor structure schematic diagram of the present invention, and Fig. 2 is this hair
The bright inner casing configuration schematic diagram.The new type explosion proof thin film capacitor, including shell 10, cover plate 14 and electrical equipment 40, lid
It is provided with the first binding post 13 and the second binding post 15 on plate 14, the shell 10 is internally provided with inner casing 30, shell
Gap is provided between 10 and inner casing 30, the left and right two sides of inner casing 30 is respectively arranged with arc-shaped concave 31, and electrical equipment 40 is set
It is to be interference fitted and contact compression between the inside of inner casing 30, electrical equipment 40 and concave surface 31.When capacitor is under high-power
During long-term work, electrical equipment 40 can produce substantial amounts of heat, for improve electrical equipment 40 radiating efficiency, prevent capacitor because
Overheat causes the blast that the electrical equipment 40 of expansion or inside punctures and triggered, and is set between the inner casing 30 and electrical equipment 40
Heat-conduction epoxy resin 50 is equipped with, conduction oil 20 is provided between shell 10 and inner casing 30；The one side of heat-conduction epoxy resin 50 has
The effect of holding electrical element 40, on the other hand its heat conductivity is excellent；Conduction oil 20 is because be liquid, and its heat conductivity
Better than heat-conduction epoxy resin 50, the radiating efficiency of capacitor is further improved, risk of explosion is reduced.
Fuel feed hole 12 and steam vent 16, oil-feed are provided with for convenience of giving on capacitor filling heat-conductive oil 20, the cover plate 14
Gap between hole 12 and shell 10 and inner casing 30 is connected, and the gap between steam vent 16 and shell 10 and inner casing 30 is connected；Row
Stomata 16 effect on the one hand be facilitate filling heat-conductive oil 20 when be easy to air shell 10 inside discharge, another aspect, when need to
When changing conduction oil 20, fuel feed hole 12 and steam vent 16 coordinate the conduction oil 20 inside shell 10 is pumped to using negative pressure it is outer
Boundary.Arc-shaped concave 31 on inner casing 30 is designed, and is on the one hand the contact area phase because between arc-shaped concave 31 and conduction oil 20
To increase, the heat transfer effect of conduction oil 20 and the internal heat of inner casing 30 is improved, and concave surface 31 also has electrical equipment 40
The effect of the middle position of inner casing 30 is fixed on, not only facilitates the filling of early stage heat-conduction epoxy resin 50, and itself and electrical equipment
Fixed form between 40 is simple, and fixed structure stability is good；On the other hand, because arc is most stable of shape, when electric
Element 40 because overheat cause expansion or partial breakdown produce substantial amounts of gas when, the thrust of horizontal direction can be produced, level is pushed away
The moment of flexure stress that script is produced by load is become compression or is largely converted into compression by power, and arc is different from rectangle
Maximum part is exactly the presence of horizontal thrust, if this horizontal thrust and end reaction and the load that is applied to it are made a concerted effort
Application point and direction pass right through the axis of arc, such arc is a compression chord, if both are not to overlap,
That there is certain moment of flexure stress, but ordinary circumstance is less than the rectangle of identical span in the moment of flexure of arc, therefore in arc
In the presence of concave surface 31, inner casing 30 is difficult to be deformed, it is to avoid the conduction oil 20 between inner casing 30 and shell 10 is because of extruding
Generation is leaked or exploded, and improves the explosion-proof performance of capacitor.For convenience of subsequent installation, the upper end of the shell 10 is provided with many
Individual fixed angle plate 11；To ensure to be symmetric between the uniform force of fixed angle plate 11, fixed angle plate 11；The center of fixed angle plate 11
Circular hole 111 is provided with, the effect of circular hole 111 is to facilitate installation bolt to pass in and out.
As shown in figure 3, Fig. 3 is electrical equipment structural representation of the present invention.The electrical equipment 40 is provided with multigroup
After being connected in parallel between bypass module 41, over-pressure safety device 42, the output end 44 of first input end 43 and first, bypass module 41
It is connected with the output end 44 of first input end 43 and first, the binding post 13 of first input end 43 and first is connected, the first output end
44 and second binding post 15 connect；The bypass module 41 is provided with core component 411 and over-pressed current-limiting apparatus 412, core
Component 411 and over-pressed current-limiting apparatus 412 are connected in series, and core component 411 is provided between multiple core 4111, core 4111 and gone here and there
Connection connection；The over-pressure safety device 42 is provided with the second input 421 and the second output end 424, the second input 421 and
One input 43 is connected, and the second output end 424 and the first output end 44 are connected." volume is first connected in series to form between core 4111
Core 4111 is gone here and there ", then it is connected in parallel again between " core 4111 is gone here and there ", this method reduce core 4111 and puncture caused other
Overvoltage in intact core 4111, and reduce the capacitance variations of the new type explosion proof thin film capacitor；Core after series connection exists
Puncturing can make two-plate form firm welding in breakdown point, be like that dielectric film is extracted out between pole plate, after series connection
Core can work on, and parallel connection effect under expand capacitance.To prevent because of the electric current mistake in the circuit of bypass module 41
Puncture caused by big and burn circuit or blast, the electric current for flowing through the breakdown point of core 4111 should be limited no more than 60A, in core group
The over-pressed current-limiting apparatus 412 of series connection on part 411；And in the case where the electric current of breakdown point is no more than 60A, when the quantity of core 4111
It is continual and steady to ensure to flow through electric current and voltage in bypass module 41 when excessive, the group number of the bypass module 41 be less than or
Equal to 12 groups, the quantity of core 4111 in single core component 411 is less than or equal to 6；Through the overvoltage that overvoltage is 330KV
Overvoltage is less than 0.9% caused by puncturing in core component 411 in test, bypass module 41.To prevent the new type explosion proof
Thin film capacitor is under high-pressure situations, and the core 4111 in core component 411 is largely punctured, in the first binding post 13 and
The two ends parallel connection access over-pressure safety device 42 of two binding posts 15, over-pressure safety device 42 causes electrical equipment 40 from mistake
Pressure, the impact of high pressure.
As shown in figure 4, Fig. 4 is over-pressed current-limiting apparatus structural representation of the present invention.The over-pressed current-limiting apparatus 412 is set
It is equipped with current-limiting reactor 4121, IGCT main valve 4122, the first equalizing resistance 4123, the second equalizing resistance 4124, arrester
4125 and the auxiliary valve 4126 of IGCT, current-limiting reactor 4121 and IGCT main valve 4122 are connected in series, arrester 4125 and brilliant lock
Manage after auxiliary valve 4126 is connected in series and be connected in parallel with IGCT main valve 4122, the first equalizing resistance 4123 and arrester 4125 are in parallel
Connection, the second equalizing resistance 4124 and the auxiliary valve 4126 of IGCT are connected in parallel.
Main function of the current-limiting reactor 4121 in over-pressed current-limiting apparatus 412：In over-pressed current-limiting apparatus 412, when being
When short trouble occurs for system, using its inductance characteristic, the short circuit current flow of system is limited, impact of the short circuit current flow to system is reduced,
The specified Breaking capacity that follow-up breaker 425 is selected, expense of reducing investment outlay, while the residual voltage of the system of raising are reduced simultaneously.Current limliting
Reactor 4121 is connected in series on system busbar, for limiting the failed shorted electric current of system so that short circuit current flow is reduced to
Thereafter the permissible value of equipment.Because arrester 4125 is required to maximum current, when electric current is larger, more than arrester 4125 most
It can be overheated or internal breakdown during high current；First equalizing resistance 4123 shares the electric current flowed through on arrester 4125, and protection is kept away
Thunder device 4125.Because the auxiliary valve 4126 of IGCT is also required to maximum current, when electric current is larger, more than the auxiliary valve 4126 of IGCT
It can be overheated or internal breakdown during maximum current；Second equalizing resistance 4124 shares the electric current flowed through on the auxiliary valve 4126 of IGCT,
Protect the auxiliary valve 4126 of IGCT.
, both can be by reducing the serial number of IGCT main valve 4122 using the auxiliary switching arrester 4125 of valve 4126 of IGCT
Its running wastage is reduced, non-transient switching can be accomplished again.The effect of IGCT main valve 4122 is switched capacitor, and IGCT is auxiliary
Valve 4126 is used for the input lightning arrester connected in parallel 4125 when transient overvoltage occurs in IGCT main valve 4122 and it is protected, brilliant lock
The triggering control for managing auxiliary valve 4126 depends on the level of protection set according to IGCT main valve 4122.The over-pressed current-limiting apparatus 412
Advantage：1. under any system condition, capacitor residue voltage is restricted to by normal system electricity by switching arrester 4125
Voltage crest value；2. due to the residual voltage of limiting capacitance device, the terminal voltage of IGCT main valve 4122 is also limited, the series connection of valve is reduced
Number, reduces the running wastage of valve, can realize non-transient switching, while reducing the voltage brought after valve false triggering to itself
Stress；3. most of energy is absorbed by arrester 4125 when overvoltage protection is acted, the simply instantaneous conducting of the auxiliary valve 4126 of IGCT；
4. very little is lost, without taking other to accelerate cooling heat dissipation technology again.
As shown in figure 5, Fig. 5 is over-pressure safety device structural representation of the present invention.The over-pressure safety device 42 is set
Thyristor valve 422, reactor 423, breaker 425 and damping resistance 426 are equipped with, second input 421 and second is exported
It is connected in series between end 424 between thyristor valve 422, the output end 424 of thyristor valve 422 and second and is connected in series reactor 423,
The input of damping resistance 426 and the second input 421 are connected, the output end of damping resistance 426 and the input of breaker 425
Connection, the output end of breaker 425 and the second output end 424 are connected.
The principle of the over-pressure safety device 42 is the angle of flow for changing thyristor valve 422 under overpressure situation, is utilized
Inductive load reduces voltage.Thyristor valve 422 is connected with the reactor 423 of low-quality factor, low reactance forms a protection branch
Road, and coordinate to realize overvoltage protection with breaker 425.The effect of damping resistance 426 is for effective He of soaking reactor 423
The higher harmonic component of thyristor valve 422, prevents output loop from occurring resonance, effective protection circuit.Because reactor 423 has
Increase short-circuit impedance, acting on for limiting short-circuit current detects line current to distinguish in electrical equipment 40 by reactor 423
With the outer failure of electrical equipment 40；If being judged as the outer failure of electrical equipment 40, thyristor valve 422 triggers fully on, most of
Fault current flows through from branch road, so as to limit the terminal voltage of electrical equipment 40；If being judged as the internal fault of electrical equipment 40, brilliant lock
Pipe valve 422 and the first triggering and conducting of the branch road of reactor 423, after certain time-delay, breaker 425 closes a floodgate, so as to protect electric member
Part 40.
New type explosion proof thin film capacitor in above-described embodiment, makes a core 4111 in core component 411 breakdown short
The capacitor on road continues through electric current 10A, 20A, 30A, 40A ... 300A, per the increase of one-level electric current 10A, every grade of energization 3h.Examination
The bulging of shell 10 is had no after testing, also has no that other show that the bad caused phenomenon of the short-circuit welding of capacitor internal occurs.Proving ring
50 DEG C of temperature, it is 1.5 times of rated capacitor voltage to apply voltage, and one core 4111 of selection is breakdown, intact core 4111
Actual overvoltage factor is 186%, and after 5400h accelerated life test, the loss of capacitor is maintained at（0.85~0.95）
×10-4, in the range of product export is allowed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. new type explosion proof thin film capacitor, including shell（10）, cover plate（14）And electrical equipment（40）, cover plate（14）On be provided with
First binding post（13）With the second binding post（15）, it is characterised in that：The shell（10）Be internally provided with inner casing
（30）, shell（10）With inner casing（30）Between be provided with gap, inner casing（30）Left and right two sides be respectively arranged with arc-shaped concave
（31）, electrical equipment（40）It is arranged on inner casing（30）Inside, electrical equipment（40）With concave surface（31）Between for interference fit simultaneously
Contact is compressed；The electrical equipment（40）It is provided with multigroup bypass module（41）, over-pressure safety device（42）, first input end
（43）With the first output end（44）, bypass module（41）Between be connected in parallel after and first input end（43）With the first output end
（44）Connection, first input end（43）With the first binding post（13）Connection, the first output end（44）With the second binding post
（15）Connection；The bypass module（41）It is provided with core component（411）With over-pressed current-limiting apparatus（412）, core component（411）
With over-pressed current-limiting apparatus（412）It is connected in series, core component（411）It is provided with multiple core（4111）, core（4111）Between
It is connected in series；The over-pressure safety device（42）It is provided with the second input（421）With the second output end（424）, the second input
End（421）And first input end（43）Connection, the second output end（424）With the first output end（44）Connection.
2. new type explosion proof thin film capacitor according to claim 1, it is characterised in that：The over-pressed current-limiting apparatus（412）
It is provided with current-limiting reactor（4121）, IGCT main valve（4122）, the first equalizing resistance（4123）, the second equalizing resistance
（4124）, arrester（4125）With the auxiliary valve of IGCT（4126）, current-limiting reactor（4121）With IGCT main valve（4122）Series connection
Connection, arrester（4125）With the auxiliary valve of IGCT（4126）It is connected in series rear and IGCT main valve（4122）It is connected in parallel, first
Equalizing resistance（4123）And arrester（4125）It is connected in parallel, the second equalizing resistance（4124）With the auxiliary valve of IGCT（4126）It is in parallel
Connection.
3. new type explosion proof thin film capacitor according to claim 1, it is characterised in that：The over-pressure safety device（42）If
It is equipped with thyristor valve（422）, reactor（423）, breaker（425）And damping resistance（426）, second input（421）
With the second output end（424）Between be connected in series thyristor valve（422）, thyristor valve（422）With the second output end（424）Between
It is connected in series reactor（423）, damping resistance（426）Input and the second input（421）Connection, damping resistance（426）
Output end and breaker（425）Input connection, breaker（425）Output end and the second output end（424）Connection.
4. new type explosion proof thin film capacitor according to claim 1, it is characterised in that：The shell（10）Upper end set
There are multiple fixed angle plates（11）, fixed angle plate（11）Between be symmetric, fixed angle plate（11）Center is provided with circular hole
（111）.
5. new type explosion proof thin film capacitor according to claim 1, it is characterised in that：The cover plate（14）On be provided with into
Oilhole（12）And steam vent（16）, fuel feed hole（12）With shell（10）And inner casing（30）Between gap connection, steam vent（16）
With shell（10）And inner casing（30）Between gap connection.
6. new type explosion proof thin film capacitor according to claim 5, it is characterised in that：The inner casing（30）And electrical equipment
（40）Between be provided with heat-conduction epoxy resin（50）, shell（10）And inner casing（30）Between be provided with conduction oil（20）.
7. new type explosion proof thin film capacitor according to claim 1, it is characterised in that：The bypass module（41）Group number
Less than or equal to 12 groups, single core component（411）In core（4111）Quantity is less than or equal to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510581522.XA CN105097285B (en) | 2015-09-14 | 2015-09-14 | New type explosion proof thin film capacitor |
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|---|---|---|---|
| CN201510581522.XA CN105097285B (en) | 2015-09-14 | 2015-09-14 | New type explosion proof thin film capacitor |
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| CN105097285B true CN105097285B (en) | 2017-08-25 |
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| CN201510581522.XA Active CN105097285B (en) | 2015-09-14 | 2015-09-14 | New type explosion proof thin film capacitor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105845437B (en) * | 2016-05-19 | 2017-11-03 | 郑州航空工业管理学院 | A kind of metallic film capacitor suitable for track circuit |
| CN106876134B (en) * | 2017-03-30 | 2019-03-08 | 华为技术有限公司 | Electrolytic capacitor and electronic product |
| JP7209149B2 (en) * | 2017-09-20 | 2023-01-20 | パナソニックＩｐマネジメント株式会社 | capacitor |
| CN112768228B (en) * | 2020-12-18 | 2023-04-07 | 东佳电子（郴州）有限公司 | Capacitor with power-off protection function |
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| CN1412794A (en) * | 2002-12-05 | 2003-04-23 | 叶介玉 | Non-explosive capacitor |
| CN202534529U (en) * | 2012-03-12 | 2012-11-14 | 安徽省宁国市麦特电器有限公司 | Novel capacitor |
| CN203013536U (en) * | 2013-01-08 | 2013-06-19 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor with firm structure |
| CN204303568U (en) * | 2014-11-19 | 2015-04-29 | 南通创佳机电有限公司 | Aluminium shell of capacitor |
| CN204927054U (en) * | 2015-09-14 | 2015-12-30 | 安徽富吉电容有限责任公司 | Novel explosion -proof film capacitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001044056A (en) * | 1999-07-27 | 2001-02-16 | Hitachi Aic Inc | Capacitor with maintenance device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412794A (en) * | 2002-12-05 | 2003-04-23 | 叶介玉 | Non-explosive capacitor |
| CN202534529U (en) * | 2012-03-12 | 2012-11-14 | 安徽省宁国市麦特电器有限公司 | Novel capacitor |
| CN203013536U (en) * | 2013-01-08 | 2013-06-19 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor with firm structure |
| CN204303568U (en) * | 2014-11-19 | 2015-04-29 | 南通创佳机电有限公司 | Aluminium shell of capacitor |
| CN204927054U (en) * | 2015-09-14 | 2015-12-30 | 安徽富吉电容有限责任公司 | Novel explosion -proof film capacitor |
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Effective date of registration: 20210609 Address after: 244000 office building of Management Committee of Shizishan high tech Zone, Tongling City, Anhui Province Patentee after: Anhui lingqun Power Capacitor Manufacturing Co.,Ltd. Address before: 244000 No.2 workshop, 120 Taishan Avenue, Tongling City, Anhui Province (in taixiang Jingte company) Patentee before: ANHUI FUJI CAPACITANCE Co.,Ltd. |