CN101771221A - Power plug with off-position protecting function - Google Patents
Power plug with off-position protecting function Download PDFInfo
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- CN101771221A CN101771221A CN200810188089A CN200810188089A CN101771221A CN 101771221 A CN101771221 A CN 101771221A CN 200810188089 A CN200810188089 A CN 200810188089A CN 200810188089 A CN200810188089 A CN 200810188089A CN 101771221 A CN101771221 A CN 101771221A
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- plug
- protecting function
- button
- position protecting
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Abstract
The invention provides a power plug with an off-position protecting function. The power plug is provided with a plug body (1), at least two pins (2) and at least two power wires (6). The power plug has the following characteristics that: the power plug is provided with an off-position button (3) and a switching unit (5); the switching unit (5) controls the on-off of the power wires (6); and a plurality of elastic parts (4) are arranged between the off-position button (3) and the plug body (1).
Description
Technical field
The present invention relates to a kind of attaching plug with off-position protecting function.
Background technology
The existing power supply plug is that two cores (live wire, zero line) or three cores (live wire, zero line and earth connection) plug combine with socket mostly, shown in the outward appearance perspective view of a kind of common pin of the prior art of the schematic block circuit diagram of a kind of common pin of the prior art of Fig. 1 and Fig. 2, the plug of prior art is made of plug body 1, inserted sheet 2 and power line 6.
Also has a kind of plug in the market with creepage protection function; this plug has control circuit and trip gear; when external connection electrical apparatus equipment produces electric leakage; in mutual inductor, produce induced electromotive force; this induced electromotive force is exported to trip gear after control circuit is handled; make the trip gear action, power supply is disconnected, play earth leakage protective effect.
But these plugs in case because of collision, pull or during being reduced significantly of inserted sheet that action of gravity makes plug and socket, exist plug can produce the overheated problem that causes fire because the water conservancy diversion area of inserted sheet is too small by the contact area of inserted sheet.
Summary of the invention
The present invention is exactly the deficiency that exists at above-mentioned attaching plug, and its objective is to provide a kind of attaching plug with off-position protecting function.
In order to achieve the above object, the attaching plug with off-position protecting function of the present invention has plug body, at least 2 inserted sheets and at least 2 power lines, it is characterized in that: have the button of offing normal and switching device; The on/off of this switching device control power line.
And the attaching plug with off-position protecting function of the present invention is provided with a plurality of elastomeric elements offing normal between button and the plug body; Form plug body, at least 2 inserted sheets, switching device and at least 2 power lines as a whole; And the button of will offing normal can be arranged on this plug body with respect to plug body movably along the direction of inserted sheet.
If employing the present invention; owing in attaching plug, be provided with off normal button and switching device; and on/off by switching device control power line; therefore when the distance of leaving socket when the face that plugs together with socket of plug surpasses the value of stipulating; the button of offing normal makes the switching device action by machine driving; the power line of plug is disconnected, interrupt to the external connection electrical apparatus power devices, the protection plug can not make plug produce superheating phenomenon because of the contact area between plug and the inserted sheet is too small.
Switching device is the mechanical switch device in the attaching plug with off-position protecting function of the present invention, by the button of offing normal by the machine driving drive actions.
Perhaps, switching device also can be the electrical switchgear that is made of control circuit and trip gear in the attaching plug with off-position protecting function of the present invention, and the signal of telecommunication that utilizes the button of offing normal to provide drives the trip gear action through control circuit.
If employing the present invention in the plug that off-position protecting function of the present invention is attached to the band creepage protection function, can provide the plug that has earth leakage protective and off-position protecting function simultaneously.
Description of drawings
Fig. 1 is the schematic block circuit diagram of a kind of common pin of the prior art.
Fig. 2 is the outward appearance perspective view of a kind of common pin of the prior art.
Fig. 3 is used for illustrating the schematic block circuit diagram with attaching plug example one of off-position protecting function of the present invention.
Fig. 4 is the outward appearance perspective view that the present invention has the attaching plug example one of off-position protecting function.
Fig. 5 a, 5b are the expression cutaway views with example of attaching plug of off-position protecting function of the present invention, the state when (a) representing the attaching plug operate as normal, the state when (b) the expression attaching plug is offed normal.
Fig. 6 is used for illustrating the schematic block circuit diagram with attaching plug example two of off-position protecting function of the present invention.
Embodiment
Example one
Fig. 3 is used for illustrating the schematic block circuit diagram with attaching plug example one of off-position protecting function of the present invention.As shown in Figure 3; the attaching plug with off-position protecting function of the invention process form one is provided with off normal button and switching device; described switching device is the two channel switch device; be connected in the middle of power line L, the N of plug; when the distance of leaving socket when the face that plugs together with socket of plug surpasses the value of regulation; the above-mentioned button of offing normal makes the switching device action by machine driving; power line L, the N of plug are disconnected; interruption is to the external connection electrical apparatus power devices, and the protection plug can not make plug produce superheating phenomenon because of the contact area between plug and the inserted sheet is too small.
Fig. 4 is the outward appearance perspective view with attaching plug example one of off-position protecting function of the present invention; Fig. 5 a, 5b are the expression cutaway view with example of attaching plug of off-position protecting function of the present invention; state when (a) representing the attaching plug operate as normal, the state when (b) the expression attaching plug is offed normal.Shown in Fig. 5 a, 5b, the attaching plug with off-position protecting function of this example has 1, at least 2 inserted sheets 2 of plug body, the button 3 of offing normal, elastomeric element 4, switching device (sensitive switch) 5 and at least 2 power lines 6.The above-mentioned button 3 of offing normal has the feeler lever 3-1 that is wholely set, this button 3 of offing normal is assembled on the above-mentioned plug body 1 along the direction of the inserted sheet 2 on the above-mentioned plug body 1, and the aperture of offering on the face B that plugs together with socket of the feeler lever 3-1 on the above-mentioned button 3 of offing normal by plug inserts in the plug body 1.Be equipped with several elastomeric elements 4 between button 3 and the above-mentioned plug body 1 above-mentioned offing normal, promote the above-mentioned button 3 of offing normal and slide along the direction of inserted sheet 2.In above-mentioned plug body 1, be provided with switching device (sensitive switch) 5, this sensitive switch 5 is a two channel switch, have 2 fixed contacts, 2 moving contacts and the reed that moves, for example fixed contact in each passage of above-mentioned sensitive switch 5 respectively with plug body 1 in live wire L (6) and zero line N (6) power line be electrically connected, the moving contact in each passage is electrically connected with live wire inserted sheet 2 and zero line inserted sheet 2 respectively.1, at least 2 inserted sheets 2 of above-mentioned plug body, sensitive switch 5 and at least 2 power line 6 formation are as a whole, and the above-mentioned button 3 of offing normal can slide in the distance range of regulation at plug body 1 upper edge inserted sheet.
When the inserted sheet 2 of above-mentioned plug is inserted in the outlet slots, the above-mentioned button 3 of offing normal overcomes elastomeric element 4 under the push effect of the face that the plugs together A of socket elastic force moves feeler lever 3-1 in plug body 1, the feeler lever 3-1 of this button 3 of offing normal and the action reed of above-mentioned sensitive switch 5 connect.When the inserted sheet 2 of above-mentioned plug is inserted in the socket certain depth position (a) with reference to Fig. 5, above-mentioned feeler lever 3-1 increases to critical value to the thrust of the action reed on the above-mentioned sensitive switch 5, the action reed produces instantaneous operation, make the moving contact and the fixed contact closure of this sensitive switch 5, sensitive switch 5 is connected, make live wire inserted sheet 2 and live wire L (6) and zero line inserted sheet 2 and zero line N (6) electrical communication respectively, provide power supply to external connection electrical apparatus equipment.
When above-mentioned plug do not insert fully in the socket or because of certain reason be pulled out regulation apart from the time, the above-mentioned button 3 of offing normal moves to the direction of leaving sensitive switch 5 under the effect of the elastic restoring force of this elastomeric element 4 between button 3 and the plug body 1 of offing normal, distance in the inserted sheet 2 insertion sockets of this plug is less than the value of regulation, be that the above-mentioned button 3 of offing normal is when the distance that moves to the direction of leaving plug body 1 under the effect of the elastic restoring force of above-mentioned elastomeric element 4 surpasses setting, above-mentioned feeler lever 3-1 is reduced to less than critical value the thrust of the action reed on the above-mentioned sensitive switch 5, the action reed produces instantaneous operation, the fixed contact and the moving contact of this sensitive switch 5 are thrown off, sensitive switch 5 disconnects, cut off being electrically connected of live wire inserted sheet 2 and live wire L (6) and zero line inserted sheet 2 and zero line N (6) respectively, interruption is powered to external connection electrical apparatus equipment, guarantees that plug self can not produce the overheated problem that causes fire because of the plug-connection piece contact area on inserted sheet and the socket is too small.
Example two
Fig. 6 is used for illustrating the schematic block circuit diagram with attaching plug example two of off-position protecting function of the present invention.The attaching plug with off-position protecting function of this example and the structure of example one are roughly the same, also have 1, at least 2 inserted sheets 2 of plug body, the button 3 of offing normal, elastomeric element 4 and at least 2 power lines 6; Be equipped with several elastomeric elements 4 between button 3 and the above-mentioned plug body 1 above-mentioned offing normal.Difference is, the switching device that opens and closes power line in the attaching plug of this example is the electrical switchgear that is made of control circuit and trip gear, promptly carry out switch motion by electronics dropout mode, rather than the mechanical switch device of example one.
When the distance of leaving socket when the face that plugs together with socket of plug surpasses the value of regulation; the above-mentioned button of offing normal carries the signal of telecommunication for above-mentioned control circuit; this signal of telecommunication flows to above-mentioned trip gear after handling through above-mentioned control circuit; make trip gear produce action; power line L, the N of plug are disconnected; interruption is to the external connection electrical apparatus power devices, and the protection plug can not make plug produce superheating phenomenon because of the contact area by between the inserted sheet of inserted sheet and socket is too small.Above-mentioned control circuit and/or above-mentioned trip gear can be used the control circuit and the trip gear of existing band creepage protection function.If like this, in the plug that off-position protecting function of the present invention is attached to the band creepage protection function, can provide the plug that has earth leakage protective and off-position protecting function simultaneously.
Though the example that above usefulness is concrete has illustrated the present invention, the present invention is not subjected to the restriction of above-mentioned example, can carry out all changes in not exceeding additional claim and suitable order thereof and scope.For example; button makes the switching device action by the direct pull switch device of feeler lever though off normal in the example one; power line L, the N of plug are disconnected; but also can be that the button of offing normal promotes leverage and makes the switching device action, perhaps can also be that off normal tripping mechanism that button promotes earth leakage circuit-breaker disconnects power line L, the N of plug.
Claims (6)
1. the attaching plug with off-position protecting function has plug body, at least 2 inserted sheets and at least 2 power lines, it is characterized in that: have the button of offing normal and switching device;
The on/off of above-mentioned switching device control said power.
2. the attaching plug with off-position protecting function as claimed in claim 1 is characterized in that: be provided with a plurality of elastomeric elements above-mentioned offing normal between button and the above-mentioned plug body.
3. the attaching plug with off-position protecting function as claimed in claim 1 or 2 is characterized in that: above-mentioned plug body, at least 2 inserted sheets, switching device and at least 2 power lines form as a whole; The above-mentioned button of offing normal can be arranged on this plug body with respect to above-mentioned plug body movably along the direction of above-mentioned inserted sheet.
4. the attaching plug with off-position protecting function as claimed in claim 1 is characterized in that: above-mentioned switching device is the mechanical switch device, passes through the machine driving drive actions by the above-mentioned button of offing normal.
5. the attaching plug with off-position protecting function as claimed in claim 1 is characterized in that: above-mentioned switching device is an electrical switchgear, is made of control circuit and trip gear.
6. the attaching plug with off-position protecting function as claimed in claim 1 is characterized in that: the signal of telecommunication that above-mentioned switching device utilizes the above-mentioned button of offing normal to provide drives above-mentioned trip gear action through above-mentioned control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188089A CN101771221A (en) | 2008-12-30 | 2008-12-30 | Power plug with off-position protecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188089A CN101771221A (en) | 2008-12-30 | 2008-12-30 | Power plug with off-position protecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101771221A true CN101771221A (en) | 2010-07-07 |
Family
ID=42503913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810188089A Pending CN101771221A (en) | 2008-12-30 | 2008-12-30 | Power plug with off-position protecting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101771221A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522893A (en) * | 2014-02-08 | 2015-08-12 | Made In Mind Ltd | Electrical plug |
| CN105356111A (en) * | 2014-08-18 | 2016-02-24 | 刘剑锋 | Safety plug |
| CN105932464A (en) * | 2016-06-22 | 2016-09-07 | 海盐县盛安电器有限公司 | External assembly type power plug shell |
| DE202015106121U1 (en) | 2015-11-12 | 2017-02-16 | Tridonic Gmbh & Co Kg | Pluggable electrical connection device |
-
2008
- 2008-12-30 CN CN200810188089A patent/CN101771221A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522893A (en) * | 2014-02-08 | 2015-08-12 | Made In Mind Ltd | Electrical plug |
| CN105356111A (en) * | 2014-08-18 | 2016-02-24 | 刘剑锋 | Safety plug |
| DE202015106121U1 (en) | 2015-11-12 | 2017-02-16 | Tridonic Gmbh & Co Kg | Pluggable electrical connection device |
| CN105932464A (en) * | 2016-06-22 | 2016-09-07 | 海盐县盛安电器有限公司 | External assembly type power plug shell |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100707 |