CN105097285A - Novel explosion-prevention thin film capacitor - Google Patents
Novel explosion-prevention thin film capacitor Download PDFInfo
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- CN105097285A CN105097285A CN201510581522.XA CN201510581522A CN105097285A CN 105097285 A CN105097285 A CN 105097285A CN 201510581522 A CN201510581522 A CN 201510581522A CN 105097285 A CN105097285 A CN 105097285A
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Abstract
The invention relates to a novel explosion-prevention thin film capacitor, belonging to the field of a capacitor. A "serial-parallel" connection mode is adopted between winding cores, and thus, the influence of winding core breakdown to the capacitor is reduced; energy storage is low by connecting a bypass component in series, and adjacent winding cores are difficult to be damaged during winding core breakdown or a shell is insulated; the heat exchange effect is improved by using heat conduction epoxy resin, heat conduction oil and an arc concave surface, and fault expansion or shell explosion is favorably prevented; with the arrangement of an overvoltage current-limiting device, breakdown caused by too high current in a bypass component circuit is effectively avoided to burn the circuit or explode, and the current and the voltage in the bypass component are ensured to be continuously stable; and with the arrangement of an overvoltage protection device, an electrical component is prevented from impact of overvoltage and high voltage. The capacitor has the advantages of compact structure, low overall loss and low cost, the installation space is saved, the running fault rate is reduced, the quality defect is favorably reduced, and the electrical component is high in capacitor, few in winding core number, high in production efficiency and good in explosion performance.
Description
Technical field
The present invention relates to a kind of film capacitor, particularly relate to new type explosion proof film capacitor.
Background technology
Power equipment manufacturing industry comprises generating equipment industry, power transmission and transformation primary equipment industry, secondary device industry, power environment protection industry four sub-industries substantially.The development of power equipment industry relies on the development of power industry, and the scale of Electricity Investment and direction directly affect the development of power equipment industry.
Film capacitor, for a kind of capacitor of electric power system and electrical equipment.Film capacitor comprises shunt capacitor, ac filter capacitor and series capacitor.Because the core solid dielectric insulation in any film capacitor all has the local quality defects such as space, crackle or conductive impurities, this defect defines electric weakness, and in capacitor work, electric weakness medium meeting accelerated ageing, causes component breakdown.High-power film capacitor due to its power large, use occasion is along with the environment of high pressure, big current, its inner electric elements adopt inline fuse technology to cut off the electric current of the overrate of capacitor internal in time, prevent capacitor from continuing live line work and cause blast, this is traditional method for many years.But the method shortcoming is after blown fuse, the circuit in electric elements is in open circuit, causes capacitor cisco unity malfunction.And, high-power film capacitor is after long-time continuous use or long-time overcurrent use or long-time overvoltage uses, and it easily gathers a large amount of heat, and existing capacitor is because of pursuing close structure, its heat dispersion is poor, capacitor case easily because crossing thermal expansion deformation, causes shell mechanical performance to be deteriorated further, when after capacitor internal electric elements overcurrent or overvoltage, cause component breakdown, produce a large amount of gas, shell mechanical degradation is easily blasted accident, poor in anti-explosion property.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, provide new type explosion proof film capacitor, concrete technical scheme is as follows:
New type explosion proof film capacitor, comprise shell, cover plate and electric component, cover plate is provided with the first binding post and the second binding post, the inside of described shell is provided with inner casing, gap is provided with between shell and inner casing, the two sides, left and right of inner casing is respectively arranged with arc-shaped concave, and electric component is arranged on the inside of inner casing, is interference fit and contacts compression between electric component with concave surface; Described electric component is provided with organizes bypass module, over-pressure safety device, first input end and the first output more, be connected with first input end and the first output after being connected in parallel between bypass module, first input end is connected with the first binding post, and the first output is connected with the second binding post; Described bypass module is provided with core assembly and overvoltage current-limiting apparatus, and core assembly and overvoltage current-limiting apparatus are connected in series, and core assembly is provided with multiple core, is connected in series between core; Described over-pressure safety device is provided with the second input and the second output, and the second input is connected with first input end, and the second output is connected with the first output.
As the improvement of technique scheme, described overvoltage current-limiting apparatus is provided with current limiting reactor, thyristor main valve, the first grading resistor, the second grading resistor, lightning arrester and the auxiliary valve of thyristor, current limiting reactor and thyristor main valve are connected in series, lightning arrester and the auxiliary valve of thyristor are connected in series afterwards and thyristor main valve is connected in parallel, first grading resistor and lightning arrester are connected in parallel, and the second grading resistor and the auxiliary valve of thyristor are connected in parallel.
As the improvement of technique scheme; described over-pressure safety device is provided with thyristor valve, reactor, circuit breaker and damping resistance; thyristor valve is connected in series between described second input and the second output; reactor is connected in series between thyristor valve and the second output; the input of damping resistance is connected with the second input; the output of damping resistance is connected with the input of circuit breaker, and the output of circuit breaker is connected with the second output.
As the improvement of technique scheme, the upper end of described shell is provided with multiple fixed angle plate, is symmetric between fixed angle plate, and fixed angle plate central authorities are provided with circular hole.
As the improvement of technique scheme, described cover plate is provided with fuel feed hole and steam vent, fuel feed hole is communicated with the gap between shell and inner casing, and steam vent is communicated with the gap between shell and inner casing.
As the improvement of technique scheme, be provided with heat-conduction epoxy resin between described inner casing and electric component, between shell and inner casing, be provided with conduction oil.
As the improvement of technique scheme, the group number of described bypass module is less than or equal to 12 groups, and the core quantity in single core assembly is less than or equal to 6.
The Advantageous Effects of new type explosion proof film capacitor of the present invention: 1), the compact conformation of capacitor, save installing space, operation troubles rate reduces, overall losses is lower, cost is lower, be conducive to reducing workmanship defect; Electric component capacity is large, core quantity is few, and production efficiency is higher;
2) energy storage in parallel of the bypass module, in capacitor is less, and when core punctures, easy damaged is not closed on core or to casing insulation, is conducive to the expansion or the shell blast that prevent fault;
3), heat-conduction epoxy resin and conduction oil improve the radiating efficiency of capacitor, reduces blast probability; Contact area between arc-shaped concave with conduction oil is relative to be increased, improve the heat transfer effect of conduction oil and inner housing inner heat, on the other hand, due to the shape that arc is the most stable, under the effect of arc-shaped concave, inner casing is difficult to be extruded distortion, reduces shell blast probability, improves the explosion-proof performance of capacitor;
4) connected mode of " after first going here and there also ", is adopted between core, reduce single core and puncture overvoltage in other caused intact core, and reduce capacitance variations and the restriction branch current of capacitor, core can make two-plate form firmly welding at breakdown point puncturing, core after series connection can work on, and reduction core punctures the impact on capacitor;
5), overvoltage current-limiting apparatus effectively avoid causing because the electric current in bypass module circuit is excessive puncture and burn circuit or blast, and the electric current that core breakdown point is flow through in restriction is no more than 60A, ensures that the electric current that flows through in bypass module and voltage keeps are stablized; Under any system condition, by switching lightning arrester, capacitor residue voltage is restricted to normal system voltage peak; Due to the residual voltage of limiting capacitance device, also just limit the terminal voltage of thyristor main valve, decrease the series connection number of valve, reduce the running wastage of valve, non-transient switching can be realized, the voltage stress brought to self after simultaneously reducing valve false triggering; During overvoltage protection action, major part energy is absorbed by lightning arrester, and the auxiliary valve of thyristor is instantaneous conducting; Loss is very little, without the need to taking other accelerating cooling heat dissipation technologys again;
6), over-pressure safety device makes electric component from the impact of overvoltage, high pressure; Under overpressure situation, change the angle of flow of thyristor valve, utilize inductive load to reduce voltage; Thyristor valve is connected with the reactor of low-quality factor, low reactance formation protection branch road, and coordinates with circuit breaker and realize overvoltage protection.
Accompanying drawing explanation
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 electric component structural representation of the present invention;
Fig. 4 is overvoltage 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 object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the 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 inner casing configuration schematic diagram of the present invention.Described new type explosion proof film capacitor, comprise shell 10, cover plate 14 and electric component 40, cover plate 14 is provided with the first binding post 13 and the second binding post 15, the inside of described shell 10 is provided with inner casing 30, gap is provided with between shell 10 and inner casing 30, the two sides, left and right of inner casing 30 is respectively arranged with arc-shaped concave 31, and electric component 40 is arranged on the inside of inner casing 30, is interference fit and contacts compression between electric component 40 with concave surface 31.When capacitor is in high-power lower long-term work, electric component 40 can produce a large amount of heats, for improving the radiating efficiency of electric component 40, prevent capacitor because of the overheated blast causing expanding or the electric component 40 of inside punctures and causes, be provided with heat-conduction epoxy resin 50 between described inner casing 30 and electric component 40, between shell 10 and inner casing 30, be provided with conduction oil 20; Heat-conduction epoxy resin 50 1 aspect has the effect of holding electrical element 40, and its heat conductivity is excellent on the other hand; Conduction oil 20 is because be liquid, and its heat conductivity is better than heat-conduction epoxy resin 50, improves the radiating efficiency of capacitor further, reduces risk of explosion.
For convenience of giving capacitor filling heat-conductive oil 20, described cover plate 14 is provided with fuel feed hole 12 and steam vent 16, fuel feed hole 12 is communicated with the gap between shell 10 and inner casing 30, and steam vent 16 is communicated with the gap between shell 10 and inner casing 30; The air being convenient to shell 10 inside when the effect of steam vent 16 is on the one hand and facilitates filling heat-conductive oil 20 is discharged, and on the other hand, when conduction oil 20 changed by needs, fuel feed hole 12 and steam vent 16 cooperation utilize negative pressure that the conduction oil 20 of shell 10 inside is pumped to the external world.Arc-shaped concave 31 on inner casing 30 designs, increase because the contact area between arc-shaped concave 31 with conduction oil 20 is relative on the one hand, improve the heat transfer effect of conduction oil 20 and inner casing 30 internal heat, and concave surface 31 also has effect electric component 40 being fixed on inner casing 30 middle position, not only convenient heat-conduction epoxy resin 50 in earlier stage is filling, and fixed form between itself and electric component 40 is simple, fixed structure good stability, on the other hand, due to the shape that arc is the most stable, when electric component 40 because of overheated cause expand or partial breakdown produce a large amount of gas time, the thrust of horizontal direction can be produced, originally the moment of flexure stress produced by load is become compression to horizontal thrust or major part is converted into compression, there is horizontal thrust exactly in the maximum part that arc is different from rectangle, if this horizontal thrust and end reaction and the application point of making a concerted effort of load be applied to it and direction are just by the axis of arc, such arc is a compression chord, if both overlap, just there is certain moment of flexure stress in that, but ordinary circumstance is less than the rectangle of identical span in the moment of flexure of arc, therefore under the effect of arc-shaped concave 31, inner casing 30 is difficult to be extruded distortion, the conduction oil 20 between inner casing 30 and shell 10 is avoided to occur because of extruding to leak or explode, improve the explosion-proof performance of capacitor.For convenience of subsequent installation, the upper end of described shell 10 is provided with multiple fixed angle plate 11; For ensureing fixed angle plate 11 uniform force, be symmetric between fixed angle plate 11; Fixed angle plate 11 central authorities are provided with circular hole 111, and the effect of circular hole 111 facilitates construction bolt to pass in and out.
As shown in Figure 3, Fig. 3 is electric component structural representation of the present invention.Described electric component 40 is provided with many group bypass module 41, over-pressure safety device 42, first input end 43 and the first output 44, be connected with first input end 43 and the first output 44 after being connected in parallel between bypass module 41, first input end 43 is connected with the first binding post 13, and the first output 44 is connected with the second binding post 15; Described bypass module 41 is provided with core assembly 411 and overvoltage current-limiting apparatus 412, and core assembly 411 and overvoltage current-limiting apparatus 412 are connected in series, and core assembly 411 is provided with multiple core 4111, is connected in series between core 4111; Described over-pressure safety device 42 is provided with the second input 421 and the second output 424, second input 421 is connected with first input end 43, and the second output 424 is connected with the first output 44.Formation " core 4111 is gone here and there " is first connected in series between core 4111, then be connected in parallel again between " core 4111 is gone here and there ", this method reduce core 4111 and puncture overvoltage in other caused intact core 4111, and reduce the capacitance variations of described new type explosion proof film capacitor; Core after series connection can make two-plate form firmly welding at breakdown point puncturing, just as if dielectric film the same from extracting out between pole plate, the core after series connection can work on, and expands capacitance under parallel connection effect.Puncture for what prevent from causing because the electric current in bypass module 41 circuit is excessive and burn circuit or blast, the electric current flowing through core 4111 breakdown point should be limited and be no more than 60A, overvoltage current-limiting apparatus 412 that core assembly 411 is connected; And when the electric current of breakdown point is no more than 60A, when core 4111 quantity is too much, the electric current flow through in bypass module 41 for guarantee and voltage keeps are stablized, the group number of described bypass module 41 is less than or equal to 12 groups, and core 4111 quantity in single core assembly 411 is less than or equal to 6; Through the overvoltage test that overvoltage is 330KV, puncture the overvoltage that causes in the core assembly 411 in bypass module 41 less than 0.9%.For preventing described new type explosion proof film capacitor under high-pressure situations; core 4111 in core assembly 411 is punctured in a large number; access over-pressure safety device 42 in the two ends parallel connection of the first binding post 13 and the second binding post 15, over-pressure safety device 42 makes electric component 40 from the impact of overvoltage, high pressure.
As shown in Figure 4, Fig. 4 is overvoltage current-limiting apparatus structural representation of the present invention.Described overvoltage current-limiting apparatus 412 is provided with current limiting reactor 4121, thyristor main valve 4122, first grading resistor 4123, second grading resistor 4124, lightning arrester 4125 and the auxiliary valve 4126 of thyristor, current limiting reactor 4121 and thyristor main valve 4122 are connected in series, lightning arrester 4125 and the auxiliary valve 4126 of thyristor are connected in series afterwards and thyristor main valve 4122 is connected in parallel, first grading resistor 4123 and lightning arrester 4125 are connected in parallel, and the second grading resistor 4124 and the auxiliary valve 4126 of thyristor are connected in parallel.
The Main Function of current limiting reactor 4121 in overvoltage current-limiting apparatus 412: in overvoltage current-limiting apparatus 412, when system is short-circuited fault, utilize its inductance characteristic, the short circuit current of restriction system, reduce short circuit current to the impact of system, reduce the specified of follow-up circuit breaker 425 selection simultaneously and cut-off capacity, expense of reducing investment outlay, improve the residual voltage of system simultaneously.Current limiting reactor 4121 is connected in series on system busbar, is used for the failed shorted electric current of restriction system, makes short circuit current be reduced to the permissible value of equipment thereafter.Because lightning arrester 4125 pairs of maximum currents have requirement, when electric current is comparatively large, can overheated or internal breakdown when exceeding the maximum current of lightning arrester 4125; First grading resistor 4123 shares the electric current flowed through on lightning arrester 4125, protection lightning arrester 4125.Because the auxiliary valve of thyristor 4126 pairs of maximum currents also have requirement, when electric current is comparatively large, can overheated or internal breakdown when exceeding the maximum current of the auxiliary valve of thyristor 4126; Second grading resistor 4124 shares the electric current flowed through on the auxiliary valve 4126 of thyristor, the auxiliary valve 4126 of protection thyristor.
Utilize thyristor auxiliary valve 4126 switching lightning arrester 4125, both can reduce its running wastage by the serial number reducing thyristor main valve 4122, and non-transient switching can be accomplished again.The effect of thyristor main valve 4122 is switched capacitors; the auxiliary valve 4126 of thyristor is protected it for dropping into lightning arrester connected in parallel 4125 when temporary overvoltage appears in thyristor main valve 4122, and the trigging control of the auxiliary valve 4126 of thyristor depends on the level of protection set according to thyristor main valve 4122.The advantage of this overvoltage current-limiting apparatus 412: 1. under any system condition, is restricted to normal system voltage peak by switching lightning arrester 4125 by capacitor residue voltage; 2. due to the residual voltage of limiting capacitance device, also just limit the terminal voltage of thyristor main valve 4122, decrease the series connection number of valve, reduce the running wastage of valve, non-transient switching can be realized, the voltage stress brought to self after simultaneously reducing valve false triggering; 3. during overvoltage protection action, major part energy is absorbed by lightning arrester 4125, the auxiliary valve of thyristor 4126 just instantaneous conducting; 4. loss is very little, without the need to taking other accelerating cooling heat dissipation technologys again.
As shown in Figure 5, Fig. 5 is over-pressure safety device structural representation of the present invention.Described over-pressure safety device 42 is provided with thyristor valve 422, reactor 423, circuit breaker 425 and damping resistance 426; thyristor valve 422 is connected in series between described second input 421 and the second output 424; reactor 423 is connected in series between thyristor valve 422 and the second output 424; the input of damping resistance 426 is connected with the second input 421; the output of damping resistance 426 is connected with the input of circuit breaker 425, and the output of circuit breaker 425 is connected with the second output 424.
The principle of described over-pressure safety device 42 is the angle of flows changing thyristor valve 422 under overpressure situation, utilizes inductive load to reduce voltage.Thyristor valve 422 is connected with the reactor 423 of low-quality factor, low reactance formation protection branch road, and coordinates with circuit breaker 425 and realize overvoltage protection.The effect of damping resistance 426 is the higher harmonic component in order to effective soaking reactor 423 and thyristor valve 422, prevents output loop generation resonance, available protecting circuit.Because reactor 423 has increase short-circuit impedance, acting on of limiting short-circuit current, comes in discriminating electrical element 40 and the outer fault of electric component 40 by reactor 423 detection line electric current; If be judged as the outer fault of electric component 40, then thyristor valve 422 triggers complete conducting, and most of fault current flows through from branch road, thus the terminal voltage of restriction electric component 40; If be judged as electric component 40 internal fault, then thyristor valve 422 and the first triggering and conducting of reactor 423 branch road, after certain time-delay, circuit breaker 425 closes a floodgate, thus protection electric component 40.
New type explosion proof film capacitor in above-described embodiment, allows the capacitor of a breakdown short circuit of core 4111 in core assembly 411 continue through electric current 10A, 20A, 30A, 40A ... 300A, every one-level electric current increases 10A, every grade of energising 3h.Have no shell 10 bulging after test, also have no other and show that the bad phenomenon caused of capacitor internal short circuit welding occurs.Proving ring temperature 50 DEG C, applying voltage is 1.5 times of rated capacitor voltage, and choose a core 4111 breakdown, the actual overvoltage factor of intact core 4111 is 186%, after the accelerated life test of 5400h, the loss of capacitor remains on (0.85 ~ 0.95) × 10
-4, all in the scope that product export is allowed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. new type explosion proof film capacitor, comprise shell (10), cover plate (14) and electric component (40), cover plate (14) is provided with the first binding post (13) and the second binding post (15), it is characterized in that: the inside of described shell (10) is provided with inner casing (30), gap is provided with between shell (10) and inner casing (30), the two sides, left and right of inner casing (30) is respectively arranged with arc-shaped concave (31), electric component (40) is arranged on the inside of inner casing (30), is interference fit and contacts compression between electric component (40) with concave surface (31); Described electric component (40) is provided with organizes bypass module (41), over-pressure safety device (42), first input end (43) and the first output (44) more, be connected with first input end (43) and the first output (44) after being connected in parallel between bypass module (41), first input end (43) is connected with the first binding post (13), and the first output (44) is connected with the second binding post (15); Described bypass module (41) is provided with core assembly (411) and overvoltage current-limiting apparatus (412), core assembly (411) and overvoltage current-limiting apparatus (412) are connected in series, core assembly (411) is provided with multiple core (4111), and core is connected in series between (4111); Described over-pressure safety device (42) is provided with the second input (421) and the second output (424), and the second input (421) is connected with first input end (43), and the second output (424) is connected with the first output (44).
2. new type explosion proof film capacitor according to claim 1, it is characterized in that: described overvoltage current-limiting apparatus (412) is provided with current limiting reactor (4121), thyristor main valve (4122), first grading resistor (4123), second grading resistor (4124), lightning arrester (4125) and the auxiliary valve of thyristor (4126), current limiting reactor (4121) and thyristor main valve (4122) are connected in series, lightning arrester (4125) and the auxiliary valve of thyristor (4126) are connected in series afterwards and thyristor main valve (4122) is connected in parallel, first grading resistor (4123) and lightning arrester (4125) are connected in parallel, second grading resistor (4124) and the auxiliary valve of thyristor (4126) are connected in parallel.
3. new type explosion proof film capacitor according to claim 1, it is characterized in that: described over-pressure safety device (42) is provided with thyristor valve (422), reactor (423), circuit breaker (425) and damping resistance (426), thyristor valve (422) is connected in series between described second input (421) and the second output (424), reactor (423) is connected in series between thyristor valve (422) and the second output (424), the input of damping resistance (426) is connected with the second input (421), the output of damping resistance (426) is connected with the input of circuit breaker (425), the output of circuit breaker (425) is connected with the second output (424).
4. new type explosion proof film capacitor according to claim 1, it is characterized in that: the upper end of described shell (10) is provided with multiple fixed angle plate (11), fixed angle plate is symmetric between (11), and fixed angle plate (11) central authorities are provided with circular hole (111).
5. new type explosion proof film capacitor according to claim 1, it is characterized in that: described cover plate (14) is provided with fuel feed hole (12) and steam vent (16), fuel feed hole (12) is communicated with the gap between shell (10) and inner casing (30), and steam vent (16) is communicated with the gap between shell (10) and inner casing (30).
6. new type explosion proof film capacitor according to claim 5, is characterized in that: be provided with heat-conduction epoxy resin (50) between described inner casing (30) and electric component (40), is provided with conduction oil (20) between shell (10) and inner casing (30).
7. new type explosion proof film capacitor according to claim 1, is characterized in that: the group number of described bypass module (41) is less than or equal to 12 groups, and core (4111) quantity in single core assembly (411) is less than or equal to 6.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN106876134A (en) * | 2017-03-30 | 2017-06-20 | 华为技术有限公司 | Electrochemical capacitor and electronic product |
| CN111066107A (en) * | 2017-09-20 | 2020-04-24 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| CN112768228A (en) * | 2020-12-18 | 2021-05-07 | 东佳电子（郴州）有限公司 | Capacitor with power-off protection function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001044056A (en) * | 1999-07-27 | 2001-02-16 | Hitachi Aic Inc | Capacitor with maintenance device |
| 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 |
-
2015
- 2015-09-14 CN CN201510581522.XA patent/CN105097285B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001044056A (en) * | 1999-07-27 | 2001-02-16 | Hitachi Aic Inc | Capacitor with maintenance device |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN106876134A (en) * | 2017-03-30 | 2017-06-20 | 华为技术有限公司 | Electrochemical capacitor and electronic product |
| CN111066107A (en) * | 2017-09-20 | 2020-04-24 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| CN111066107B (en) * | 2017-09-20 | 2021-12-07 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| CN112768228A (en) * | 2020-12-18 | 2021-05-07 | 东佳电子（郴州）有限公司 | Capacitor with power-off protection function |
| 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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| CN105097285B (en) | 2017-08-25 |
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