CN204067063U - A kind of power capacitor - Google Patents
A kind of power capacitor Download PDFInfo
- Publication number
- CN204067063U CN204067063U CN201420433355.5U CN201420433355U CN204067063U CN 204067063 U CN204067063 U CN 204067063U CN 201420433355 U CN201420433355 U CN 201420433355U CN 204067063 U CN204067063 U CN 204067063U
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- CN
- China
- Prior art keywords
- conduction
- power capacitor
- insertion tube
- inserting column
- cap
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of power capacitor, comprise housing, described housing is provided with cap and body, elastic conducting strip is connected with between described cap and body, described cap is provided with the elastic ring caved inward along its circumference, the relative body direction of described cap is provided with conduction insertion tube, described body is provided with the conduction inserting column be plugged in conduction insertion tube, described conduction inserting column patches with conduction insertion tube the largest deformation amount that length is less than elastic ring, according to said structure, in effective solution prior art, the pressure of power capacitor inside becomes large is cause greatly in instantaneous change due to electric current instability, but because lead-in wire also will be broken by this situation, thus power capacitor is damaged and causes the problem of the direct waste to power capacitor.
Description
Technical field
The utility model relates to a kind of capacitor, and more particularly, it relates to a kind of power capacitor.
Background technology
Self healing capacitor adopts single-layer polypropylene film as medium, and the surperficial evaporation thin metal of one deck is as conductive electrode.When applying too high voltage, polypropylene screen electricity weakness is breakdown, and breakdown point impedance obviously reduces, the current density flow through sharply increases, and make metallization coating produce high heat, the metallic conductor around breakdown point evaporates loss rapidly, form coat of metal clear area, breakdown point recovers insulation automatically.
Capacitor unit group adopts the explosion-proof manufacture craft that stretches, when capacitor internal fault, can produce the collapse of a succession of self-healing property causes capacitor element internal pressure to increase, for avoiding causing capacitor case rupture, capacitor element internal structure design has pressure to break type dump mechanism, these protective devices are that nationality causes upper cover to heave by interior pressure increase, the Copper Foil of weakness process is pulled off and isolated from power, prevents secondary disaster from occurring.
Power capacitor of the prior art, after capacitor internal pressure becomes greatly, directly the lead-in wire being placed in its inside can be broken, but the pressure of power capacitor inside becomes large is sometimes cause greatly in instantaneous change due to electric current instability, but because lead-in wire also will be broken by this situation, thus direct waste power capacitor being damaged and causes power capacitor.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of power capacitor, the pressure change that it effectively can solve power capacitor inside in prior art greatly just causes greatly in instantaneous change because electric current is unstable, but because lead-in wire also will be broken by this situation, thus power capacitor is damaged and causes the problem of the direct waste to power capacitor.
For achieving the above object, the utility model provides following technical scheme:
A kind of power capacitor, comprise housing, described housing is provided with cap and body, elastic conducting strip is connected with between described cap and body, described cap is provided with the elastic ring caved inward along its circumference, the relative body direction of described cap is provided with conduction insertion tube, and described body is provided with the conduction inserting column be plugged in conduction insertion tube, and described conduction inserting column patches with conduction insertion tube the largest deformation amount that length is less than elastic ring.
By adopting technique scheme, power capacitor is by elastic conducting strip and two circuits of conduction insertion tube with conduction inserting column, and the conducting of realizing circuit, allows power capacitor realize work normally, when there is instability and cause electric current excessive in the electric current in the middle of operational environment, the electric current flow through in power capacitor also will become large thereupon, thus cause the heating up of power capacitor, the expansion of air that the rising of temperature will cause in cap, because cap is provided with the elastic ring of inside projection, after the air in housing expands, elastic ring will be stretched by while jack-up along with cap, after the amount of tension of elastic ring reaches certain limit, conduction insertion tube will be separated with conduction inserting column, thus power capacitor is quit work, avoid the danger that power capacitor works at high operating temperatures, after the temperature return in power capacitor is normal, the air be in cap also incites somebody to action not reflation, now cap is returned to reset condition again by under the effect of elastic ring, conduction insertion tube will be docked again with conduction inserting column, now power capacitor will normally ask lower task again, avoid the waste because moment erratic current causes power capacitor.
The utility model is set to further: described conduction inserting column is provided with elastic bumps with the part convex that patches of conduction insertion tube.
By adopting technique scheme, by being arranged on the elastic bumps of outwards projection on conduction inserting column, make contact performance when conducting electricity inserting column and the docking of conduction insertion tube better, can arrive fully contact, operating state is more stable.
The utility model is set to further: one end of described conduction inserting column facing conductive insertion tube is set to round end.
By adopting technique scheme, conduction inserting column, when inserting conduction insertion tube, because one end of conduction inserting column facing conductive insertion tube is set to round end, makes, in conduction inserting column insertion process, to reduce, increase the service life with the relative friction forces of conduction insertion tube.
Compared with prior art, the utility model has the advantage of: the pressure effectively solving power capacitor inside in prior art becomes large and just causes greatly in instantaneous change because electric current is unstable, but because lead-in wire also will be broken by this situation, thus power capacitor is damaged and causes the problem of the direct waste to power capacitor.
Accompanying drawing explanation
Fig. 1 is the overall appearance figure of a kind of power capacitor of the utility model embodiment;
Fig. 2 is the A-A view of Fig. 2;
Fig. 3 is the exceptionally straight state perspective view of elastic ring of a kind of power capacitor of the utility model embodiment.
In figure, 1, housing; 2, body; 3, elastic conducting strip; 4, conduction insertion tube; 5, conduction inserting column; 51, elastic bumps; 6, elastic ring; 7, cap.
Embodiment
Referring to figs. 1 through Fig. 3, a kind of power capacitor, comprise housing 1, described housing 1 is provided with cap 7 and body 2, elastic conducting strip 3 is connected with between described cap 7 and body 2, described cap 7 is provided with the elastic ring 6 caved inward along its circumference, described cap 7 relatively body 2 direction is provided with conduction insertion tube 4, described body 2 is provided with and the suitable conduction inserting column 5 of described conduction insertion tube 4 shape, described conduction inserting column 5 and conduction insertion tube 4 patch the largest deformation amount that length is less than elastic ring 6, described conduction inserting column 5 is provided with elastic bumps 51 with the part convex that patches of conduction insertion tube 4, one end of described conduction inserting column 5 facing conductive insertion tube 4 is set to round end.
According to above-mentioned structure, power capacitor is by elastic conducting strip 3 and two circuits of conduction insertion tube 4 with conduction inserting column 5, and the conducting of realizing circuit, allows power capacitor realize work normally, when there is instability and cause electric current excessive in the electric current in the middle of operational environment, the electric current flow through in power capacitor also will become large thereupon, thus cause the heating up of power capacitor, the expansion of air that the rising of temperature will cause in cap 7, because cap 7 is provided with the elastic ring 6 of inside projection, after the air in housing 1 expands, elastic ring 6 will be stretched by while jack-up along with cap 7, after the amount of tension of elastic ring 6 reaches certain limit, conduction insertion tube 4 will be separated with conduction inserting column 5, thus power capacitor is quit work, avoid the danger that power capacitor works at high operating temperatures, after the temperature return in power capacitor is normal, the air be in cap 7 also incites somebody to action not reflation, now cap 7 is returned to reset condition again by under the effect of elastic ring 6, conduction insertion tube 4 will be docked again with conduction inserting column 5, now power capacitor will normally ask lower task again, avoid the waste because moment erratic current causes power capacitor.
Further, by being arranged on the elastic bumps 51 of outwards projection on conduction inserting column 5, contact performance when conduction inserting column 5 and conduction insertion tube 4 are docked is better, can arrive fully contact, operating state is more stable, and conduction inserting column 5 is when inserting conduction insertion tube 4, because one end of conduction inserting column 5 facing conductive insertion tube 4 is set to round end, make, in conduction inserting column 5 insertion process, to reduce with the relative friction forces of conduction insertion tube 4, increase the service life.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a power capacitor, comprise housing, described housing is provided with cap and body, elastic conducting strip is connected with between described cap and body, it is characterized in that, described cap is provided with the elastic ring caved inward along its circumference, and the relative body direction of described cap is provided with conduction insertion tube, described body is provided with the conduction inserting column be plugged in conduction insertion tube, and described conduction inserting column patches with conduction insertion tube the largest deformation amount that length is less than elastic ring.
2. a kind of power capacitor according to claim 1, is characterized in that, described conduction inserting column is provided with elastic bumps with the part convex that patches of conduction insertion tube.
3. a kind of power capacitor according to claim 1, is characterized in that, one end of described conduction inserting column facing conductive insertion tube is set to round end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433355.5U CN204067063U (en) | 2014-08-01 | 2014-08-01 | A kind of power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433355.5U CN204067063U (en) | 2014-08-01 | 2014-08-01 | A kind of power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204067063U true CN204067063U (en) | 2014-12-31 |
Family
ID=52208520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433355.5U Expired - Fee Related CN204067063U (en) | 2014-08-01 | 2014-08-01 | A kind of power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204067063U (en) |
-
2014
- 2014-08-01 CN CN201420433355.5U patent/CN204067063U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |