CN203607356U - Manual reset current protective tube - Google Patents
Manual reset current protective tube Download PDFInfo
- Publication number
- CN203607356U CN203607356U CN201320687738.0U CN201320687738U CN203607356U CN 203607356 U CN203607356 U CN 203607356U CN 201320687738 U CN201320687738 U CN 201320687738U CN 203607356 U CN203607356 U CN 203607356U
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- CN
- China
- Prior art keywords
- fixedly connected
- protective tube
- movable contact
- contact spring
- movable
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- Expired - Fee Related
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Abstract
The utility model discloses a manual reset current protective tube, comprising an upper cover, a lower cover, a metal cap, and a first contact plate, a movable contact spring, a silver sheet, a heating coil, and a second contact plate disposed on the lower cover. The fixed joint end of the movable contact spring is fixedly connected with the bottom surface of the first contact plate. The silver sheet contacts with movable contacts on bottom surface of a movable contact spring movable joint end. The heating coil is fixedly connected with the silver sheet. The second contact plate is fixedly connected with the heating coil. The movable contact spring is provided with at least a salient point on the bottom surface between the fixed joint end and the movable joint end of the movable contact spring. The lower end cover is also provided with a temperature sheet and a PTC device. The salient point is disposed on the temperature sheet. An end of the PTC device is fixedly connected with the movable contact spring, and the other end is fixedly connected with the silver sheet through a PTC spring. The protective tube can be repeatedly reused, and is not needed to be changed after the protective tube plays a role, thereby greatly improving usage convenience, reducing use cost, and the protective tube can be continuously used through manual reset, so electric power is saved, and security is ensured.
Description
Technical field
The utility model relates to a kind of protective tube, relates in particular to a kind of hand-reset electric current protective tube.
Background technology
As Fig. 1; it has demonstrated the concrete structure of existing current insurance pipe, and existing current insurance pipe generally comprises glass tube 1, be placed in fuse 2 in glass tube 1, be enclosed within the iron cover 3 on glass tube 1 two ends, in the time that electric current is excessive; fuse 2 blows blocking-up electric current, thereby plays a protective role.But existing this protective tube can only use once, once the blowout that plays a role can not reuse, need to again change protective tube, make troubles to user, also improve use cost.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of hand-reset electric current protective tube, and it can repeatedly use, not only improve the convenience using, reduced use cost, and need to could continue to use by hand-reset, save electric power, ensured safety.
For achieving the above object, the utility model adopts following technical scheme:
Hand-reset electric current protective tube, comprise upper cover, lower cover, be wrapped in the metal cap on upper cover and lower cover two ends, be arranged on down the first contact plate covering, be fixedly connected with the movable contact spring that end is fixedly connected with the first contact plate bottom surface, the silver strip contacting with the moving contact being arranged on the face of movable contact spring flexible connection bottom, the heating wire being fixedly connected with silver strip, the second contact plate being fixedly connected with heating wire, described movable contact spring is fixedly connected with end at it and is provided with at least one salient point with on the bottom surface being flexibly connected between end, under described, cover and a thermometer be also installed and a PTC(is thermistor) device, described salient point is placed on this thermometer, one end of this PTC device is fixedly connected with movable contact spring, the other end is fixedly connected with described silver strip by a PTC shell fragment.
As a kind of preferred version, described metal cap is copper cap.
As a kind of preferred version, described salient point has two.
A kind of hand-reset electric current protective tube that the utility model is set forth, its beneficial effect is: compared with prior art, protective tube of the present utility model can repeatedly use, after playing a role at it, change protective tube, not only greatly improve the convenience using, reduced use cost, and need to could continue to use by hand-reset, save electric power, ensured safety.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of existing current insurance pipe.
Fig. 2 is the configuration diagram of the utility model embodiment.
Description of reference numerals:
1, glass tube; 2, fuse; 3, iron cover;
10, upper cover; 20, lower cover; 30, copper cap; 40, the first contact plate; 50, movable contact spring; 51, moving contact; 52, salient point; 60, silver strip; 70, heating wire; 80, the second contact plate; 90, thermometer; 100, PTC device; 110, PTC shell fragment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.
Please refer to shown in Fig. 2, it has demonstrated the concrete structure of the utility model preferred embodiment, hand-reset electric current protective tube, comprise upper cover 10, lower cover 20, be wrapped in the copper cap 30 on upper cover 10 and lower cover 20 two ends, be arranged on the first contact plate 40 on lower cover 20, be fixedly connected with the movable contact spring 50 that end is fixedly connected with the first contact plate 40 bottom surfaces, with be arranged on movable contact spring 50 and be flexibly connected the silver strip 60 that the moving contact 51 on the face of bottom contacts, the heating wire 70 being fixedly connected with silver strip 60, the second contact plate 80 being fixedly connected with heating wire 70, described movable contact spring 50 is fixedly connected with end at it and is provided with two salient points 52 with on the bottom surface being flexibly connected between end, one thermometer 90 and a PTC device 100 are also installed on described lower cover 20, described salient point 52 is placed on this thermometer 90, one end of this PTC device 100 is fixedly connected with movable contact spring 50, the other end is fixedly connected with described silver strip 60 by a PTC shell fragment 110.
When use, if electric current is normal, electric current is without PTC device 100, if electric current is excessive, the heat that heating wire 70 produces is delivered on thermometer 90, thermometer 90 temperature distortions upwards promote movable contact spring 50, the flexible connection end of movable contact spring 50 is upwards lifted, the moving contact 51 being flexibly connected on end separates with silver strip 60, now electric current is through PTC device 100, PTC device 100 generates heat, heat is delivered on thermometer 90, make thermometer 90 keep being heated deformed state always, simultaneously because PTC device 100 resistance are larger, the electric current flowing out from the second contact plate 80 is minimum, can not cause circuit infringement, while only having the voltage when user's hand off copper cap 30 two ends, PTC device 100 just can not generate heat, thermometer 90 can restore to the original state, the flexible connection end of movable contact spring 50 moves down reset, the moving contact 51 being flexibly connected on end recovers to contact with silver strip 60, reach the excellent effect of hand-reset, now protective tube can continue again to use, without changing protective tube, greatly improve the convenience using, reduce use cost, and before carrying out hand-reset, can before electric current problems of too is unresolved, just because automatically reseting, thermometer 90 coolings not cause protective tube to work on, so both economized electric power, ensure again safety.
Be pointed out that, the copper cap 30 in the present embodiment can replace with other metal cap, and such as chapeau de fer, salient point 52 quantity on movable contact spring 50 are also not limited to two in the present embodiment, can only have one, or three, even more.
The above, it is only the utility model preferred embodiment, not technical scope of the present utility model is imposed any restrictions, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. hand-reset electric current protective tube, it is characterized in that: comprise upper cover, lower cover, be wrapped in the metal cap on upper cover and lower cover two ends, be arranged on down the first contact plate covering, be fixedly connected with the movable contact spring that end is fixedly connected with the first contact plate bottom surface, the silver strip contacting with the moving contact being arranged on the face of movable contact spring flexible connection bottom, the heating wire being fixedly connected with silver strip, the second contact plate being fixedly connected with heating wire, described movable contact spring is fixedly connected with end at it and is provided with at least one salient point with on the bottom surface being flexibly connected between end, under described, cover a thermometer and a PTC device are also installed, described salient point is placed on this thermometer, one end of this PTC device is fixedly connected with movable contact spring, the other end is fixedly connected with described silver strip by a PTC shell fragment.
2. hand-reset electric current protective tube according to claim 1, is characterized in that: described metal cap is copper cap.
3. hand-reset electric current protective tube according to claim 1, is characterized in that: described salient point has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687738.0U CN203607356U (en) | 2013-11-02 | 2013-11-02 | Manual reset current protective tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687738.0U CN203607356U (en) | 2013-11-02 | 2013-11-02 | Manual reset current protective tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607356U true CN203607356U (en) | 2014-05-21 |
Family
ID=50720020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687738.0U Expired - Fee Related CN203607356U (en) | 2013-11-02 | 2013-11-02 | Manual reset current protective tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824728A (en) * | 2014-03-06 | 2014-05-28 | 东莞市凯恩电子科技有限公司 | Temperature controllable protective tube |
-
2013
- 2013-11-02 CN CN201320687738.0U patent/CN203607356U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824728A (en) * | 2014-03-06 | 2014-05-28 | 东莞市凯恩电子科技有限公司 | Temperature controllable protective tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160321 Granted publication date: 20140521 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160921 Granted publication date: 20140521 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20160921 Granted publication date: 20140521 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170921 Granted publication date: 20140521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20151102 |