CN2932736Y - An overcurrent protected plug - Google Patents
An overcurrent protected plug Download PDFInfo
- Publication number
- CN2932736Y CN2932736Y CN 200620106000 CN200620106000U CN2932736Y CN 2932736 Y CN2932736 Y CN 2932736Y CN 200620106000 CN200620106000 CN 200620106000 CN 200620106000 U CN200620106000 U CN 200620106000U CN 2932736 Y CN2932736 Y CN 2932736Y
- Authority
- CN
- China
- Prior art keywords
- zero line
- drain pan
- overcurrent protection
- live wire
- protection plug
- 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.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A current overload protective male plug belongs to the technology field of electrical apparatus element, comprising a bottom casing and an upper cover which matches the bottom casing, wherein the bottom casing is cooperatively provided with a live wire film threading and a zero line film threading, and zero line of the power line which is connected with the zero line film threading. The utility model is characterized in that the live wire is connected with a static connection strap through a splicing ear, and the live wire film threading is connected with one end of a curved double metal plate which matches with the static connector through a movable contact and a break-back contact which are respectively arranged. The current overload protective male plug of the utility model is novel in concept, and simple and rational in structure. Thereby when the current is larger than the nominal current, the curved double metal plate will be heated to curve to stick upward, and the movable contact and the break-back contact will automatically separate to cut off the circuit to ensure the safe operation of the male plug under nominal current. When the external circuit is recovered to normal, the circuit will be renewably conducted through a reset device to resume the normal operation. The male plug of the utility model is high in structural security, and strong in recognizing capacity, thereby effectively protecting the service safety and increasing the service life of the electric appliances.
Description
Technical field
The utility model belongs to the electric elements technical field, is specially a kind of overcurrent protection plug.
Background technology
Have only two conducting strips directly to be connected in its housing of plug commonly used, do not have current protective device, make appliance circuit not obtain due protection, to exerting an influence in safe in utilization, useful life of electrical equipment, and threaten personal safety directly, indirectly with power line.
The utility model content
At the above-mentioned problems in the prior art, the utility model design provides a kind of technical scheme of overcurrent protection plug, protects the safe in utilization of electrical equipment, increases its useful life.
Described a kind of overcurrent protection plug; comprise drain pan and the loam cake that is mated; be equipped with live wire inserted sheet, zero line inserted sheet in the drain pan; the power line zero line is connected with the zero line inserted sheet; it is characterized in that live wire is connected with the static connection sheet by splicing ear; the live wire inserted sheet is connected with curved surface bimetal leaf one end, and the curved surface bimetal leaf touches by moving contact, the fixed contact that is provided with respectively with the static connection sheet and cooperates.
Described a kind of overcurrent protection plug is characterized in that being equipped with in the drain pan grounding insert-pin, and the power line ground wire is connected with grounding insert-pin.
Described a kind of overcurrent protection plug is characterized in that being provided with on the drain pan resetting means of curved surface bimetal leaf, and this resetting means is made of the reset button, the back-moving spring that reset slide plate and be mated connection.
Described a kind of overcurrent protection plug is characterized in that being equipped with on the drain pan indicator light, covers on corresponding indicator lamp hole is set.
Described a kind of overcurrent protection plug is characterized in that the power line end fixedlys connected with drain pan by tension disc.
Above-mentioned a kind of overcurrent protection plug, novel, simple and reasonable for structure, when electric current surpasses rated current, the curved surface bimetal leaf thermal bending deformation liter of tilting upward, moving contact, the automatic escape of fixed contact, cut off circuit, guarantee plug trouble free service under rated current; After external circuit recovers normally, make circuit conducting again by resetting means, recover operate as normal.This plug construction is safe, and breaking capacity is strong, has protected the safe in utilization of electrical equipment effectively, has increased its useful life.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a circuit engaging structure schematic diagram;
Fig. 3 is a circuit disrupted configuration schematic diagram.
Embodiment
As shown in the figure, fixedly connected with drain pan 11 by tension disc 13 and self-tapping screw 15 in power line 16 ends, and drain pan 11 passes through bolt 10 threaded with loam cake 1.Be equipped with live wire inserted sheet 14, zero line inserted sheet 17 and grounding insert-pin 5 in the drain pan 11.Power line 16 zero lines are connected with zero line inserted sheet 17 by line ball screw 19, binding post 18, and ground wire is connected with grounding insert-pin 5 by line ball screw 19a, binding post 18a.Live wire is connected with static connection sheet 9 by splicing ear 12, and live wire inserted sheet 14 is connected with curved surface bimetal leaf 6 one ends, and curved surface bimetal leaf 6 touches and cooperates by moving contact 7, the fixed contact 8 that is provided with respectively with static connection sheet 9.The resetting means of curved surface bimetal leaf 6 is set on the drain pan 11, and this resetting means is made of the reset button 4a, the back-moving spring 3 that reset slide plate 4 and be mated connection, and the slide plate 4 that resets connects with curved surface bimetal leaf 6 upper ends retaining and cooperates.Indicator light 2 is installed on the drain pan 11, on the corresponding loam cake 1 indicator lamp hole is set.This overcurrent protection plug meets the requirement of GB plug electric property.Also grounding insert-pin 5 can be set in the drain pan 11, only be equipped with live wire inserted sheet 14,17 two inserted sheets of zero line inserted sheet, other structure and annexation each other are identical with three inserted sheet structures.
During the circuit operate as normal, moving contact 7, fixed contact 8 touch cooperation, and the slide plate 4 that resets is in the centre position, and circuit is in conducting state; When electric current surpasses rated current, curved surface bimetal leaf 6 thermal bending deformations liters of tilting upward, moving contact 7, fixed contact 8 automatic escapes, cut-out circuit, assurance plug trouble free service under rated current; After external circuit recovers normally, stir the toggle 4a that resets and drive the slide plate 4 that resets and touch with curved surface bimetal leaf 6 upper ends and cooperate, make moving contact 7, fixed contact 8 touch again and close, circuit gets final product conducting, slide plate 4 homing under back-moving spring 3 effect that resets, circuit recovers operate as normal.
Claims (6)
1, a kind of overcurrent protection plug; the loam cake (1) that comprises drain pan (11) and be mated; be equipped with live wire inserted sheet (14), zero line inserted sheet (17) in the drain pan (11); power line (16) zero line is connected with zero line inserted sheet (17); it is characterized in that live wire passes through splicing ear (12) and is connected with static connection sheet (9); live wire inserted sheet (14) is connected with curved surface bimetal leaf (6) one ends, and curved surface bimetal leaf (6) touches and cooperates by moving contact (7), the fixed contact (8) that is provided with respectively with static connection sheet (9).
2, a kind of overcurrent protection plug as claimed in claim 1 is characterized in that being equipped with in the drain pan (11) grounding insert-pin (5), and power line (16) ground wire is connected with grounding insert-pin (5).
3, a kind of overcurrent protection plug as claimed in claim 1; it is characterized in that being provided with on the drain pan (11) resetting means of curved surface bimetal leaf (6), this resetting means is made of slide plate that resets (4) and the reset button (4a), back-moving spring (3) that are mated connection.
4, a kind of overcurrent protection plug as claimed in claim 1 is characterized in that being equipped with on the drain pan (11) indicator light (2), on the corresponding loam cake (1) indicator lamp hole is set.
5, a kind of overcurrent protection plug as claimed in claim 1 is characterized in that power line (16) end fixedlys connected with drain pan (11) by tension disc (13).
6, a kind of overcurrent protection plug as claimed in claim 1; it is characterized in that power line (16) zero line is connected with zero line inserted sheet (17) by line ball screw (19), binding post (18), ground wire is connected with grounding insert-pin (5) by line ball screw (19a), binding post (18a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106000 CN2932736Y (en) | 2006-07-25 | 2006-07-25 | An overcurrent protected plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106000 CN2932736Y (en) | 2006-07-25 | 2006-07-25 | An overcurrent protected plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932736Y true CN2932736Y (en) | 2007-08-08 |
Family
ID=38349227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106000 Expired - Fee Related CN2932736Y (en) | 2006-07-25 | 2006-07-25 | An overcurrent protected plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932736Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170070A (en) * | 2011-01-20 | 2011-08-31 | 鸿硕精密电工（苏州）有限公司 | Medium scale power cord and machining process thereof |
-
2006
- 2006-07-25 CN CN 200620106000 patent/CN2932736Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170070A (en) * | 2011-01-20 | 2011-08-31 | 鸿硕精密电工（苏州）有限公司 | Medium scale power cord and machining process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 Termination date: 20110725 |