CN204407857U - Simple and easy overpressure protector - Google Patents
Simple and easy overpressure protector Download PDFInfo
- Publication number
- CN204407857U CN204407857U CN201520093743.8U CN201520093743U CN204407857U CN 204407857 U CN204407857 U CN 204407857U CN 201520093743 U CN201520093743 U CN 201520093743U CN 204407857 U CN204407857 U CN 204407857U
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- CN
- China
- Prior art keywords
- voltage stabilizing
- fuse
- stabilizing didoe
- easy
- overpressure protector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of simple and easy overpressure protector, relate to electrical equipment overpressure protection technical field.The utility model is a fuse of connecting on the power line, and the leading-out terminal of fuse connects the negative pole of a voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe connects power cathode; The voltage stabilizing value of voltage stabilizing didoe is at 1V ~ 500V; The operating current of fuse is at 0.01A ~ 1000A.Advantage: can be used alone, reduces manufacturing cost greatly.
Description
Technical field
The utility model relates to electrical equipment overpressure protection technical field, specifically a kind of simple and easy overpressure protector, especially
Be applicable to electric three-wheel vehicle wire harness.
Background technology
Current most electrical equipment does not possess superpressure and protects function, realizes protection often through additional earth leakage protective device or air switch.Earth leakage protective device solves electrical leakage problems; such as human electric shock; electric current flows on the ground by human body; generally more than 30 milliamperes; earth leakage protective device will be cut off the electricity supply; thus avoiding the effect of electric current to a handful of air switch of human injury: switch trip can be caused to cut off the electricity supply to sheet metal heated bending because of heating when exceeding certain electric current by the electric current of switch, protective circuit is not burnt because of excessive electric current, only plays the effect of protective circuit.Earth leakage protective device and air switch just control electric current, have ignored the control to voltage.Minority electrical equipment increases overpressure protector on the basis of earth leakage protective device and air switch; overpressure protector Main Function carries out comprehensive monitoring, control, protection to voltage exactly; if all protected current/voltage; the exception because of current/voltage so just can be avoided to jump to damage lives and properties; but add manufacturing cost simultaneously; in addition this overpressure protector is together with circuit, can not be used alone.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of simple and easy overpressure protector, can be single
Only use, reduces manufacturing cost greatly.
The utility model realizes with following technical scheme: a kind of simple and easy overpressure protector, a fuse of connecting on the power line, and the leading-out terminal of fuse connects the negative pole of a voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe connects power cathode; The voltage stabilizing of voltage stabilizing didoe is worth 1 V ~ 500V; The operating current of fuse is at 0.01A ~ 500A.
Further: described fuse adopts resettable fuse.
The beneficial effects of the utility model are: (1) low-voltage electrical apparatus uses this overpressure protector, and when appearance is higher than electrical equipment rated voltage, voltage stabilizing didoe forms large reverse current instantaneously, blowout, thus protects electric device and be not burned; (2) simple and easy, can be used alone; (3) Ultra Low Cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of simple and easy overpressure protector, a fuse of connecting on the power line, the leading-out terminal of fuse connects the negative pole of a voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe connects power cathode; The voltage stabilizing value of voltage stabilizing didoe is at 1 V ~ 500V; The operating current of fuse is at 0.01A ~ 1000A.
Fuse adopts resettable fuse, and resettable fuse has overcurrent and overheating protection and automatically recovers dual-use function.When circuit is short-circuited or transship, the heat that the big current flowing through resettable fuse produces makes polymer resin melt, and volume increases rapidly, and form high-impedance state, operating current reduces rapidly, thus limits circuit and protect.When after failture evacuation, resettable fuse is crystallisation by cooling again, volume contraction, and conducting particles forms conductive path again, and resettable fuse reverts to low resistive state, thus completes the protection to circuit, need not manually change.
The course of work: according to the rated voltage of electrical equipment, suitably select voltage stabilizing to be worth suitable voltage stabilizing didoe, when voltage exceedes electrical equipment rated voltage time, voltage stabilizing didoe forms large reverse current instantaneously, blowout, thus protects electric device and be not burned.
Claims (2)
1. a simple and easy overpressure protector, a fuse of connecting on the power line, is characterized in that: the leading-out terminal of fuse connects the negative pole of a voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe connects power cathode; The voltage stabilizing value of voltage stabilizing didoe is at 1 V ~ 500V; The operating current of fuse is at 0.01A ~ 500A.
2. simple and easy overpressure protector according to claim 1, is characterized in that: described fuse adopts resettable fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093743.8U CN204407857U (en) | 2015-02-10 | 2015-02-10 | Simple and easy overpressure protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093743.8U CN204407857U (en) | 2015-02-10 | 2015-02-10 | Simple and easy overpressure protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407857U true CN204407857U (en) | 2015-06-17 |
Family
ID=53431692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520093743.8U Active CN204407857U (en) | 2015-02-10 | 2015-02-10 | Simple and easy overpressure protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734115A (en) * | 2015-02-10 | 2015-06-24 | 程永 | Simple overvoltage protector |
-
2015
- 2015-02-10 CN CN201520093743.8U patent/CN204407857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734115A (en) * | 2015-02-10 | 2015-06-24 | 程永 | Simple overvoltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |