CN104752057A - Large thin film capacitor and dry type packaging method of large thin film capacitor - Google Patents
Large thin film capacitor and dry type packaging method of large thin film capacitor Download PDFInfo
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- CN104752057A CN104752057A CN201510124052.4A CN201510124052A CN104752057A CN 104752057 A CN104752057 A CN 104752057A CN 201510124052 A CN201510124052 A CN 201510124052A CN 104752057 A CN104752057 A CN 104752057A
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- battery core
- film capacitor
- shell
- cover plate
- electric core
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Abstract
The invention discloses a large thin film capacitor. The large thin film capacitor comprises an electric core, an insulation sleeve sleeved at the lower end of the electric core, a plastic piece sleeved at the upper end of the electric core, an outer shell covering the insulation sleeve, the plastic piece and the electric core, a current collector, a cover plate and an outgoing terminal arranged on the cover plate, wherein the plastic piece sleeved at the upper end of the electric core is an annular sleeve, and the bottom edge of the circular sleeve is provided with a ring wing part, and the circular sleeve is expanded and fixed with the inner wall of an aluminum shell through the ring wing part, and thereby the plastic piece is fixed in the aluminum shell. By filling a certain amount of smelted APP glue in the outer shell, the insulation sleeve is pressed in the center of the shell by a simulated shaft sleeve before the solidification of the APP glue; after the component is cooled, the electric core is pressed in the insulation sleeve, so that the electric core is stably fixed at the inner part of the outer shell; and thereby, the swaying problem of the electric core in the dry type packaging is solved.
Description
Technical field
The invention belongs to technical field of electronic components, relate to a kind of large-scale film capacitor and dry type method for packing thereof.
Background technology
Along with the development of technical merit, multiple industry such as electronics, household electrical appliances, communication cycle of updating is shorter and shorter, and film capacitor relies on its good electrician's performance and high reliability, becomes to promote above-mentioned industry and to update indispensable electronic component.The coming years further develop and country's increasing input and the upgrading of consumer electronics product in power grid construction, electric railway construction, energy-saving illumination, hybrid vehicle etc. along with digitlization, informationization, network Construction, and the market demand of film capacitor will present the trend increased fast further.
Film capacitor works as electrode with metal forming, and by itself and poly-ethyl ester, polypropylene, the plastic film such as polystyrene or Merlon, after the overlap of two ends, is wound into the capacitor of cylindric structure.Film capacitor has nonpolarity, and insulation impedance is very high, frequency characteristic excellence (frequency response is broad), and the characteristic that dielectric loss is very little.Film capacitor is mainly used in multiple industries such as electronics, household electrical appliances, communication, electric power, electric railway, hybrid vehicle, wind power generation, solar power generation, and the stable development of these industries, has promoted the growth in film capacitor market.
What traditional film capacitor adopted is that plastic cement external member entangles battery core; plastic cement external member is entangled fixing again by shell; draw wire from battery core and be connected to cover plate; after filling insulating oil again in shell; shell and cover plate are formed a hermetically sealed can by machining; protection battery core is not made moist, and sealed cans structure is oil-proof.But in encapsulation process, plastic cement external member easily deforms, cause plastic cement external member easily to shake in shell, thus have influence on the battery core be positioned in plastic cement external member, and then have influence on the performance of capacitor.
Therefore, for the defect that above-mentioned prior art exists, being in fact necessary to study, a kind of scheme is provided, rocking problem to solve battery core when encapsulating.
Summary of the invention
For solving the problem, the object of the present invention is to provide a kind of large-scale film capacitor and dry type method for packing thereof, with solve battery core encapsulate time rock problem.
For achieving the above object, technical scheme of the present invention is:
A kind of large-scale film capacitor, the leading-out terminal including battery core, be enclosed within the insulating case of battery core lower end, be enclosed within the plastic parts of battery core upper end, the shell being coated with insulating case, plastic parts and battery core, collector, cover plate and be arranged on cover plate; Wherein, described in be enclosed within the rounded cover of plastic parts of battery core upper end, the bottom margin of circular cover is provided with ring alar part, is fixed by ring alar part and the swelling of described aluminum hull inwall, thus described plastic cement external member is fixed in aluminum hull.
Further, the shell of described coated insulation cover, plastic parts and battery core is aluminum hull; Be provided with circular hole in the middle of the bottom of described circular cover, collector connects leading-out terminal through circular hole.
Further, described battery core is reeled by electrode foil plate and plastic film and forms, and is a cylindrical shape after electric core winding; After the winding plug taking-up of battery core, battery core center is formed with hollow bore, and one collector is connected to battery core one end face, and another collector connects and battery core other end through battery core central through hole.
Further, described cover plate is also provided with vent valve; Also be provided with insulation board between described plastic cement external member and cover plate, to isolate two electrodes, avoid electrode contact to cause short circuit.
Another technical scheme of the present invention is:
A dry type method for packing for large-scale film capacitor, comprises the steps:
APP glue after happy and harmonious is filled with the shell into film capacitor, before APP glue does not solidify, overlaps just center in insulating case press-in shell with imitative profile shaft;
Treat that APP glue cools, insulating case is fixed on after in shell, battery core is pressed in insulating case, adopt the circular plastic part with thimble to be enclosed within battery core upper end in connection cover plate direction simultaneously, bottom margin ring alar part and the outer casing inner wall swelling of plastic parts are fixed, thus battery core is stably fixed on enclosure;
Install cover plate, crimping is carried out to shell.
Compared to prior art, film capacitor of the present invention by first by a certain amount of happy and harmonious after APP glue fill with in shell, before APP glue does not solidify, with imitative profile shaft cover, insulating case is pressed into center in shell, after assembly cooling, battery core is pressed in insulating case, thus battery core is stably fixed on enclosure, rock problem to solve battery core when dry type encapsulates.
Accompanying drawing explanation
Fig. 1 is three-dimensional icon of the present invention.
Fig. 2 is the inside diagram after the present invention cuts open.
Fig. 3 is the internal structure diagram of another angle after the present invention cuts open.
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.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, connect integratedly, also can be removably connect; It can be the connection of two element internals; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, concrete condition can understand above-mentioned term concrete meaning in the present invention.
Please refer to shown in Fig. 1-Fig. 3, the leading-out terminal 106 that film capacitor 200 of the present invention includes battery core 100, is enclosed within the insulating case 101 of battery core 100 lower end, is enclosed within the plastic parts 102 of battery core 100 upper end, the shell 103 being coated with insulating case 101, plastic parts 102 and battery core 100, collector 104, cover plate 105 and is arranged on cover plate 105.
Wherein, the shell of affiliated coated insulation cover, plastic parts and battery core is aluminum hull, the described rounded cover of plastic parts being enclosed within battery core upper end, the bottom margin of circular cover is provided with ring alar part (not shown), fixed by ring alar part and the swelling of described aluminum hull inwall, thus make described plastic cement external member be fixed in aluminum hull; Be provided with circular hole 110 in the middle of the bottom of circular cover, collector 104 connects leading-out terminal 106 through circular hole 110.APP glue (not shown) is filled, steadily to be fixed in shell by insulating case between described insulating case and shell; Tightly entangle battery core up and down by plastic cement external member and insulating case, thus can not shake when battery core is encapsulated.
Described battery core is reeled by electrode foil plate and plastic film and forms, and is a cylindrical shape after electric core winding; After the winding plug taking-up of battery core, battery core center is formed with hollow bore, and one collector is connected to battery core one end face, and another collector connects and battery core other end through battery core central through hole; The other end of collector is connected to the leading-out terminal on cover plate respectively.
Also be provided with insulation board 111 between described plastic cement external member and cover plate, to isolate two electrodes, avoid electrode contact to cause short circuit.Described cover plate is also provided with vent valve; Described plastic cement external member and insulating case can be quality of rubber materials or the material such as PVC or silica gel.
Another embodiment of the present invention is a kind of dry type method for packing of large-scale film capacitor, comprises the steps:
APP glue after happy and harmonious is filled with the shell into film capacitor, before APP glue does not solidify, overlaps just center in insulating case press-in shell with imitative profile shaft;
Treat that APP glue cools, insulating case is fixed on after in shell, battery core is pressed in insulating case, adopt the circular plastic part with thimble to be enclosed within battery core upper end in connection cover plate direction simultaneously, bottom margin ring alar part and the outer casing inner wall swelling of plastic parts are fixed, thus battery core is stably fixed on enclosure;
Install cover plate, crimping is carried out to shell.
Film capacitor of the present invention dry type encapsulation by first by a certain amount of happy and harmonious after APP glue fill with in shell, before APP glue does not solidify, with imitative profile shaft cover, insulating case is pressed into center in shell, after assembly cooling, battery core is pressed in insulating case, thus battery core is stably fixed on enclosure, rock problem to solve battery core when dry type encapsulates.
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 (5)
1. a large-scale film capacitor, is characterized in that: the leading-out terminal including battery core, be enclosed within the insulating case of battery core lower end, be enclosed within the plastic parts of battery core upper end, the shell being coated with insulating case, plastic parts and battery core, collector, cover plate and be arranged on cover plate; Wherein, described in be enclosed within the rounded cover of plastic parts of battery core upper end, the bottom margin of circular cover is provided with ring alar part, is fixed by ring alar part and the swelling of described aluminum hull inwall, thus described plastic cement external member is fixed in aluminum hull.
2. film capacitor as claimed in claim 1, is characterized in that: the shell of described coated insulation cover, plastic parts and battery core is aluminum hull; Be provided with circular hole in the middle of the bottom of described circular cover, collector connects leading-out terminal through circular hole.
3. film capacitor as claimed in claim 2, is characterized in that: described battery core is reeled by electrode foil plate and plastic film and forms, and is a cylindrical shape after electric core winding; After the winding plug taking-up of battery core, battery core center is formed with hollow bore, and one collector is connected to battery core one end face, and another collector connects and battery core other end through battery core central through hole.
4. film capacitor as claimed in claim 3, is characterized in that: described cover plate is also provided with vent valve; Also be provided with insulation board between described plastic cement external member and cover plate, to isolate two electrodes, avoid electrode contact to cause short circuit.
5. a dry type method for packing for large-scale film capacitor, is characterized in that, comprise the steps:
APP glue after happy and harmonious is filled with the shell into film capacitor, before APP glue does not solidify, overlaps just center in insulating case press-in shell with imitative profile shaft;
Treat that APP glue cools, insulating case is fixed on after in shell, battery core is pressed in insulating case, adopt the circular plastic part with thimble to be enclosed within battery core upper end in connection cover plate direction simultaneously, bottom margin ring alar part and the outer casing inner wall swelling of plastic parts are fixed, thus battery core is stably fixed on enclosure;
Install cover plate, crimping is carried out to shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124052.4A CN104752057A (en) | 2015-03-22 | 2015-03-22 | Large thin film capacitor and dry type packaging method of large thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124052.4A CN104752057A (en) | 2015-03-22 | 2015-03-22 | Large thin film capacitor and dry type packaging method of large thin film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104752057A true CN104752057A (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510124052.4A Pending CN104752057A (en) | 2015-03-22 | 2015-03-22 | Large thin film capacitor and dry type packaging method of large thin film capacitor |
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| CN (1) | CN104752057A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148154A (en) * | 2018-07-13 | 2019-01-04 | 广西吉光电子科技有限公司 | Stud capacitors cover board |
| CN112466666A (en) * | 2020-11-20 | 2021-03-09 | 马鞍山悠思电子科技有限公司 | High-strength metallized film capacitor and preparation device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61183522U (en) * | 1985-05-09 | 1986-11-15 | ||
| CN201302926Y (en) * | 2008-11-27 | 2009-09-02 | 上海皓月电气有限公司 | Cover body of capacitor packaged by epoxy resin |
| CN201796729U (en) * | 2010-09-21 | 2011-04-13 | 无锡宏广电容器有限公司 | Positioning sleeve with wing |
| JP2015018898A (en) * | 2013-07-10 | 2015-01-29 | ニチコン株式会社 | Metalization film capacitor |
-
2015
- 2015-03-22 CN CN201510124052.4A patent/CN104752057A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61183522U (en) * | 1985-05-09 | 1986-11-15 | ||
| CN201302926Y (en) * | 2008-11-27 | 2009-09-02 | 上海皓月电气有限公司 | Cover body of capacitor packaged by epoxy resin |
| CN201796729U (en) * | 2010-09-21 | 2011-04-13 | 无锡宏广电容器有限公司 | Positioning sleeve with wing |
| JP2015018898A (en) * | 2013-07-10 | 2015-01-29 | ニチコン株式会社 | Metalization film capacitor |
Non-Patent Citations (1)
| Title |
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| 尹志华、王永祥: ""风电变流器专用铝电解电容器的研制"", 《水电与新能源》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148154A (en) * | 2018-07-13 | 2019-01-04 | 广西吉光电子科技有限公司 | Stud capacitors cover board |
| CN112466666A (en) * | 2020-11-20 | 2021-03-09 | 马鞍山悠思电子科技有限公司 | High-strength metallized film capacitor and preparation device thereof |
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