CN206849699U - A kind of high current dry type explosion-prevention thin film capacitor - Google Patents
A kind of high current dry type explosion-prevention thin film capacitor Download PDFInfo
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- CN206849699U CN206849699U CN201720490277.6U CN201720490277U CN206849699U CN 206849699 U CN206849699 U CN 206849699U CN 201720490277 U CN201720490277 U CN 201720490277U CN 206849699 U CN206849699 U CN 206849699U
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- thin film
- high current
- dry type
- type explosion
- film capacitor
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Abstract
The utility model discloses a kind of high current dry type explosion-prevention thin film capacitor, including shell, capacitor body, draw copper rod and binding post, wherein described capacitor body is in the shell, the soft inserts of solid-state is filled between the capacitor body and the shell, top cover is installed in the cover top portion, described extraction copper rod one end is connected with the capacitor body, the extraction copper rod other end is connected with described binding post one end, the binding post is on the top cover, its galvanization ability is stronger, environmentally friendly.
Description
Technical field
It the utility model is related to capacitor, more particularly to a kind of high current dry type explosion-prevention thin film capacitor.
Background technology
In modern high power power electronic equipment, substantial amounts of thin film capacitor is used, particularly in equipment input, output
Occasion is exchanged, general all using LC or LCL filtering due to filtering, due to the presence of inductance, capacitor has damage or end-of-life
When, power electronic equipment can not be detected, and equipment would not be shut down, continuous firing after such capacitance damage, final capacitance temperature liter
It is high and explode, be on fire.
At present, dry type not anti-explosion electric perhaps oil immersion explosion prevention capacitor, dry type are used for exchange input, exchange output in industry
Explosion prevention capacitor is not exactly in capacitance damage or end-of-life, and equipment can not detect and continue to be powered, and it is quick-fried to ultimately result in electric capacity
Fried or equipment plays naked light.When oil immersion explosion prevention capacitor can ensure that capacitance damage although and circuitry cuts, but two drawbacks be present：When
For such a electric capacity because requirement of explosion proof, galvanization ability is weaker, can only typically pass through 50A electric current, it is impossible to meet high-power electric
The requirement of electronic equipment；On the other hand it is exactly that fill is liquid, by month after month prolonged work, liquid can corrode electricity throughout the year
Container film and spilling cause equipment pollution serious.
Utility model content
The purpose of this utility model is to provide a kind of high current dry type explosion-prevention thin film capacitor, its galvanization ability compared with
By force, it is environmentally friendly.
To achieve these goals, the technical solution adopted in the utility model：A kind of high current dry type explosion-prevention thin-film capacitor
Device, including shell, capacitor body, extraction copper rod and binding post, wherein the capacitor body is located in the shell,
The soft inserts of solid-state is filled between the capacitor body and the shell, top cover is installed in the cover top portion, institute
Extraction copper rod one end to be stated with the capacitor body to be connected, the extraction copper rod other end is connected with described binding post one end,
The binding post is on the top cover.
Among one or more embodiments of the present utility model, the circular in cross-section for drawing copper rod.
Among one or more embodiments of the present utility model, capacitor body is rolled up using polypropylene macromolecule membrane
Around into.
Among one or more embodiments of the present utility model, the soft inserts of solid-state uses dry-type resin.
Among one or more embodiments of the present utility model, the capacitor body is extend into the extraction copper rod
Opened up on interior one end jagged.
Among one or more embodiments of the present utility model, solid resin is filled with the capacitor body.
Among one or more embodiments of the present utility model, inner cap is provided with the top cover, in the shell,
Through hole is offered among the inner cap, the extraction copper rod passes through among the through hole.
Among one or more embodiments of the present utility model, it is provided with inside on the outer surface held on the housing
The kink of bending, the kink are pressed in the outer rim of the inner cap top.
Among one or more embodiments of the present utility model, it is provided with what is down extended in the outer rim of the inner cap
The extension of annular, the extension are extend between the capacitor body and the shell.
Among one or more embodiments of the present utility model, the shell, which is adopted, to be formed from aluminium, and the top cover is
It is made of tinplate.
The utility model beneficial effect caused by compared with background technology：
1st, the galvanization ability of capacitor that can increase is drawn using copper rod, it is general up to 80A；
When the 2nd, may insure capacitor damage or end-of-life using the soft inserts of solid-state, liquid pollution is there will be neither,
Extraction can be broken in the case where there is pressure；During so as to ensure capacitance damage or end-of-life in open-circuit condition without explode,
It is not on fire.
3rd, open up on described one end for extending into the capacitor body of extraction copper rod jagged, ensured with this one
Determine that in the presence of power extraction copper rod can be broken.
Brief description of the drawings
Fig. 1 is the structural representation of thin film capacitor in embodiment；
Fig. 2 is the diagrammatic cross-section under thin film capacitor normal condition in embodiment；
Fig. 3 is the diagrammatic cross-section under thin film capacitor abnormality in embodiment.
Embodiment
Embodiment of the present utility model is described below in detail, described embodiment example is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.
, it is necessary to explanation in description of the present utility model, for the noun of locality, if any term " " center ", " transverse direction ",
" longitudinal direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ",
The indicating position such as " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " and position relationship are based on orientation shown in the drawings or position
Relation is put, narration the utility model is for only for ease of and simplifies description, rather than indicate or imply signified device or element
There must be specific orientation, construct and operate with particular orientation, it is impossible to be interpreted as limiting specific protection model of the present utility model
Enclose.
In addition, be only used for describing purpose if any term " first ", " second ", and it is not intended that indicating or implying relatively heavy
The property wanted or the implicit quantity for indicating technical characteristic.Thus, " first " is defined, " second " feature can be expressed or implicit include
One or more this feature, in the utility model description, one or more " at least " are meant that, unless otherwise bright
It is really specific to limit.
In the utility model, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term
It should go to understand as broad sense, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can also be machine
Tool connects；Can be joined directly together or be connected by intermediary, can be that two element internals are connected.For
For those of ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing as the case may be
Justice.
In utility model, unless otherwise prescribed and limit, fisrt feature second feature it " on " or it " under " can be with
Directly contacted including the first and second features, it is not directly to contact but pass through it that can also include fisrt feature and second feature
Between other characterisation contact.Moreover, fisrt feature includes fisrt feature second in second feature " on " and " above "
Directly over feature and oblique upper, or be only to represent that fisrt feature level height is higher than the height of second feature.Fisrt feature exists
Second feature " under " and " following " fisrt feature that includes immediately below second feature or obliquely downward, or to be merely representative of first special
Sign level height is less than second feature.
With reference to the accompanying drawing of specification, by being further described to specific embodiment of the present utility model, make
The technical solution of the utility model and its advantage are clearer, clear and definite.It is to show to describe embodiment below with reference to accompanying drawing
Example property, it is intended to the utility model is explained, and it is not intended that to limitation of the present utility model.
It refer to shown in Fig. 1, Fig. 2 and Fig. 3, the present embodiment provides a kind of high current dry type explosion-prevention thin film capacitor, bag
Include shell 1, capacitor body 2, draw copper rod 3 and binding post 4, wherein the capacitor body 2 is located at the shell 1
It is interior, the soft inserts 5 of solid-state is filled between the capacitor body 2 and the shell 1, passes through the soft inserts 5 of the solid-state
To protect and fix the capacitor body 2, top cover 6, described extraction copper rod 3 one end are installed at the top of shell 1
It is connected with the capacitor body 2, the extraction other end of copper rod 3 is connected with described one end of binding post 4, the binding post
4 other ends are used to be connected with power electronic equipment, and the binding post 4 is on the top cover 6.
The present embodiment provide it is a kind of can lead to high current, do not corrode film and not contaminated equipment exchange noinductive capacitor,
Disconnected after ensuring capacitor failure in open-circuit condition with circuit.
Further, the circular in cross-section for drawing copper rod 3.Oil immersion explosion prevention capacitor is replaced by using circle copper rod
Copper foil is to ensure that capacitor can be by larger electric current.
Preferably, capacitor body 2 is formed using polypropylene macromolecule membrane winding.
Further, the soft inserts 5 of the solid-state uses dry-type resin, to protect and fix the capacitor body
2。
Preferably, jagged 30 are opened up on one end that the extraction copper rod 3 is extend into the capacitor body 2.Such as
, can be by high current, when capacitor damages or during end-of-life in use, in electric capacity in capacitor use shown in Fig. 3
Can produce substantial amounts of gas inside device, and because capacitor body 2 is with a tight waist fixed by the soft inserts 5 of solid-state and aluminum hull 1 and
The increase of internal pressure causes top cover 6 to deform and then extraction copper rod 3 can be pulled it is broken at breach 30, finally forces electric capacity
Device disconnects with circuit.
The extraction copper rod 3 is provided with a certain size breach 30, has both ensured that capacitor can be ensured by high current, and can
Under certain pressure, breach can be broken.
Preferably, solid resin is filled with the capacitor body 2, filling oil is replaced with solid resin, it is ensured that Gu
State resin does not leak, does not corrode film.
Further, inner cap 7 is provided with the top cover 6, in the shell 1, is offered among the inner cap 7 logical
Hole 70, the extraction copper rod 3 pass through among the through hole 70.
Preferably, the kink 10 of bending inside, the kink 10 are provided with the outer surface of the upper end of shell 1
It is pressed in the outer rim at the top of inner cap 7, the capacitor body 2 can be preferably fixed with this.
Further, the annular extension 71 down extended, the extension are provided with the outer rim of the inner cap 7
71, which extend into inserts 5 soft with the solid-state between the capacitor body 2 and the shell 1, links integrally, can have with this
Effect improves the bonding strength between capacitor body 2 and shell 1, avoids capacitor body 2 from moving easily.
Preferably, the shell 1, which is adopted, is formed from aluminium.The top cover is made of using tinplate.
In the description of specification, reference term " conjunction one embodiment ", " preferably ", " example ", " specific example " or
The description of " some examples " etc. means specific features, structure, material or the feature for combining the embodiment or example description, comprising
In at least one embodiment of the present utility model or example, differ in this manual for the schematic representation of above-mentioned term
Surely identical embodiment or example are referred to.Moreover, specific features, structure, material or the feature of description can be any
Combined in a suitable manner in one or more embodiments or example.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the utility model
Above-mentioned embodiment is not limited to, it is equal using the improvement and replacement of techniques well known on the basis of the utility model
Fall in the scope of protection of the utility model, it should be limited by each claim.
Claims (10)
- A kind of 1. high current dry type explosion-prevention thin film capacitor, it is characterised in that including shell, capacitor body, draw copper rod with And binding post, wherein the capacitor body is filled out in the shell between the capacitor body and the shell Filled with the soft inserts of solid-state, top cover, described extraction copper rod one end and the capacitor body phase are installed in the cover top portion Even, the extraction copper rod other end is connected with described binding post one end, and the binding post is on the top cover.
- A kind of 2. high current dry type explosion-prevention thin film capacitor according to claim 1, it is characterised in that the extraction copper rod Circular in cross-section.
- 3. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1, it is characterised in that capacitor body is Formed using polypropylene macromolecule membrane winding.
- 4. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1,2 or 3, it is characterised in that described solid The soft inserts of state uses dry-type resin.
- 5. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1,2 or 3, it is characterised in that described Opened up on one end that extraction copper rod is extend into the capacitor body jagged.
- 6. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1,2 or 3, it is characterised in that described Solid resin is filled with capacitor body.
- 7. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1,2 or 3, it is characterised in that described Inner cap is provided with top cover, in the shell, through hole is offered among the inner cap, the extraction copper rod is from the through hole Between pass through.
- 8. a kind of high current dry type explosion-prevention thin film capacitor according to claim 7, it is characterised in that on the housing The kink of bending inside is provided with the outer surface at end, the kink is pressed in the outer rim of the inner cap top.
- 9. a kind of high current dry type explosion-prevention thin film capacitor according to claim 7, it is characterised in that in the inner cap Be provided with the annular extension down extended in outer rim, the extension extend into the capacitor body and the shell it Between.
- 10. a kind of high current dry type explosion-prevention thin film capacitor according to claim 1,2 or 3, it is characterised in that described outer Shell, which is adopted, to be formed from aluminium, and the top cover is made of tinplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720490277.6U CN206849699U (en) | 2017-05-05 | 2017-05-05 | A kind of high current dry type explosion-prevention thin film capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720490277.6U CN206849699U (en) | 2017-05-05 | 2017-05-05 | A kind of high current dry type explosion-prevention thin film capacitor |
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| Publication Number | Publication Date |
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| CN206849699U true CN206849699U (en) | 2018-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180700A (en) * | 2017-05-05 | 2017-09-19 | 广东意壳电子科技有限公司 | A kind of high current dry type explosion-prevention thin film capacitor |
-
2017
- 2017-05-05 CN CN201720490277.6U patent/CN206849699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180700A (en) * | 2017-05-05 | 2017-09-19 | 广东意壳电子科技有限公司 | A kind of high current dry type explosion-prevention thin film capacitor |
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