CN201918332U - Circuit-breaking device preventing fire accidents caused by electric leakage as well as socket and plug comprising same - Google Patents
Circuit-breaking device preventing fire accidents caused by electric leakage as well as socket and plug comprising same Download PDFInfo
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- CN201918332U CN201918332U CN2010202977189U CN201020297718U CN201918332U CN 201918332 U CN201918332 U CN 201918332U CN 2010202977189 U CN2010202977189 U CN 2010202977189U CN 201020297718 U CN201020297718 U CN 201020297718U CN 201918332 U CN201918332 U CN 201918332U
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Abstract
The utility model discloses a circuit-breaking device, comprising a changeover switch, a first circuit, a second circuit and a third circuit. The changeover switch comprises a base end and a first connection end which is selectively connected or disconnected with the base end; a first end of the first circuit is a first electrically-connected terminal, and a second end of the first circuit is electrically connected with the base end of the changeover switch; a first end of the second circuit is electrically connected with the first connection end of the changeover switch, a second end of the second circuit is a second electrically-connected terminal which is electrically connected with one pole of a power source, and the second circuit is provided with a heater which is connected between the first connection end of the changeover and the second electrically-connected terminal in series; and a first end of the third circuit is a third electrically-connected terminal, a second end of the third circuit is electrically connected with the other pole of the power source, and the third circuit is provided with a temperature-sensitive breaker which is connected between the third electrically-connected terminal and the other pole of the power source in series. The utility model also discloses a power socket and a plug that are respectively provided with the circuit-breaking device.
Description
Technical field
The utility model relates to a kind of tripper, particularly can prevent to leak electricity to cause the tripper of fire, and the socket and the plug that comprise this device.
Background technology
Supply socket and attaching plug are widely used as the product that is used to power.When being inserted with attaching plug suck airborne moisture and between the conduction inserted sheet of socket, can flow through little by little little electric current (being commonly called as " electric leakage ") because dust adheres to, thereby will form the tungsten carbide/conductive road on the surface of attaching plug, be so-called electric trace.This carbonization and then can cause that attaching plug is on fire suddenly, it can become the reason of fire.
Therefore, in order to prevent the generation of this type of electric leakage fire incident, existing many anti-creeping devices.For example, TOHKEMY 2001-167850 communique, Japanese kokai publication hei 9-69380 communique etc. disclose the example of this type of device.
In addition, in Japan speciallys permit No. 3541187 communique, disclosed a kind of anticreep supply socket and attaching plug that causes fire.In this Japan Patent, be provided with first conductor between a pair of insertion section of its attaching plug; Be provided with second conductor around this insertion section, second conductor and first conductor interconnect; And the earth connection that is connected with first conductor or second conductor.Supply socket in this patent is provided with the structure of similar first, second conductor and earth connection.
By this structure, not only can prevent because of between the conduction inserted sheet of the insertion section of attaching plug or supply socket because of electric leakage causes fire, can also prevent to cause the problem of fire because of the electric leakage that causes because of dust accretions around insertion section or the plug blades.
Above-mentioned these structures all are electric current is discharged to reach anti-creeping purpose by earth connection is set.But, do not have mandatory provision in the existing cloth line standard and must arrange ground path.Therefore,,, can not play anti-creeping effect, still have the hidden danger of breaking out of fire if be linked on the circuit that ground path is not set even if on plug or socket, be provided with these anti-leakage structures.
The utility model content
Technical problem to be solved in the utility model is to prevent that the anti-leakage structure of existing power supply socket or attaching plug is inoperative under the situation of no earth connection.
In order to solve the problems of the technologies described above, the utility model provides a kind of tripper, and it comprises diverter switch, and described diverter switch comprises cardinal extremity, and can select to disconnect or the first closed link with described cardinal extremity; First circuit, first end of described first circuit are first power connection end, and second end is electrically connected with the cardinal extremity of diverter switch; Second circuit, first end of described second circuit is electrically connected with first link of described diverter switch, second end is second power connection end that is electrically connected with a utmost point of power supply, and described second circuit has the heater that is connected between described diverter switch first link and described second power connection end; Tertiary circuit, first end of described tertiary circuit are the 3rd power connection end, and second end is electrically connected with another utmost point of power supply, and described tertiary circuit has the temperature sense circuit breaker that is connected between described the 3rd power connection end and another utmost point of described power supply.
Preferably, described diverter switch also comprises can be selected to disconnect or the second closed link with described cardinal extremity, and described second link is an earth terminal.
Preferably, in the above-mentioned diverter switch, when described cardinal extremity and first link closure, disconnect with second link; And when described cardinal extremity and the disconnection of first link, with the second link closure.
Preferably, described temperature sense circuit breaker is temperature fuse or bimetal leaf.
Of the present utility model is a kind of tripper on the other hand, and it comprises: first power connection end; Second power connection end that is electrically connected with a utmost point of power supply; Be connected on the heater between described first power connection end and described second power connection end; The 3rd power connection end, and be connected on temperature sense circuit breaker between described the 3rd power connection end and another utmost point of described power supply.
Of the present utility model is a kind of supply socket on the other hand, comprises the jack that at least one pair of power supply source plug inserts, and described jack respectively has the conduction inserted sheet; Be arranged on first conductor between the described jack; Wherein, described supply socket also comprises above-mentioned tripper, and wherein said first conductor is electrically connected with first power connection end; A conduction inserted sheet in the described a pair of jack is electrically connected with second power connection end; Another conduction inserted sheet in the described jack is electrically connected with the 3rd power connection end.
Preferably, described supply socket also comprises second conductor that is arranged on around the described jack, and described first conductor and described second conductor are electrically connected.
Of the present utility model is a kind of attaching plug on the other hand, comprises a pair of insertion section of inserting supply socket; Be arranged on first conductor between the described insertion section; Wherein, described attaching plug also comprises above-mentioned tripper, and wherein said first conductor and second conductor are electrically connected with first power connection end; In the described a pair of insertion section one is electrically connected with second power connection end; In the described insertion section another is electrically connected with the 3rd power connection end.
Preferably, described attaching plug also comprises second conductor that is arranged on around the described insertion section, and described first conductor and described second conductor are electrically connected.
The utlity model has following advantage:
1. when supply socket or attaching plug have tripper of the present utility model, do not having under the situation of earth connection, can allow electric current generate heat by heater.When temperature reaches predetermined value, blow the temperature fuse or allow bimetal leaf flick deenergization, reach the function that prevents fire, guarantee safe handling.
2. have diverter switch in the tripper of the present utility model, can allow the user select temperature sense circuit breaker circuit functions still to allow ground path work according to actual needs, use the flexibility height.
3. in the execution mode that does not have diverter switch, the structure of tripper is comparatively simple, but can play anti-creeping effect equally.
Description of drawings
Fig. 1 is that wherein diverter switch is in open mode according to the circuit diagram of the supply socket of the utility model one embodiment.
Fig. 2 is the circuit diagram according to supply socket shown in Figure 1, and wherein diverter switch is in the state with the heater line closure.
Fig. 3 is the circuit diagram according to supply socket shown in Figure 1, and wherein diverter switch is in the state with the earth terminal closure.
Fig. 4 is the circuit diagram according to the supply socket of another embodiment of the utility model.
Fig. 5 is the circuit diagram according to the supply socket of another embodiment of the utility model.
Embodiment
As shown in Figure 1, be the circuit diagram of the supply socket of the utility model embodiment.The jack 10 of inserted sheet is conducted electricity having of comprising that at least one pair of power supply source plug (not shown) inserts in this supply socket 1.The first conductor 10a is arranged between the described jack 10.The second conductor 10b is arranged on around the described jack.Described first conductor 10a and the described second conductor 10b are electrically connected.
Also comprise tripper in this supply socket 1.Tripper comprises diverter switch 3, and described diverter switch 3 comprises cardinal extremity 30, can select to disconnect or the closed first link 30a and the second link 30b with described cardinal extremity.
Comprise first circuit 31, second circuit 32 and tertiary circuit 33 in the tripper.
First end of first circuit 31 is the sub-A of first power connection end, and second end is electrically connected with the cardinal extremity 30 of diverter switch 3.The first conductor 10a and the described second conductor 10b are electrically connected with the sub-A of first power connection end.
First end of second circuit 32 is electrically connected with the first link 30a of described diverter switch 3, and second end is the sub-B of second power connection end that is electrically connected with the utmost point (for example anodal) of power supply AC.Described second circuit has the first link 30a that is connected on described diverter switch 3 and the heater 4 between the sub-B of described second power connection end.A conduction inserted sheet in a pair of jack 10 of described socket is electrically connected with the sub-B of described second power connection end.
First end of tertiary circuit 33 is the sub-C of the 3rd power connection end, and second end is electrically connected with another utmost point (for example negative pole) of power supply AC.Described tertiary circuit 33 has the temperature sense circuit breaker 5 that is connected between the sub-C of described the 3rd power connection end and another utmost point of described power supply.Described temperature sense circuit breaker 5 be arranged on described heater 4 around, can sense the temperature of heater 4.Another conduction inserted sheet in the described a pair of jack 10 is electrically connected with the sub-C of described the 3rd power connection end.
The second link 30b of described diverter switch 3 is an earth terminal.
As shown in Figure 2, when the cardinal extremity 30 of diverter switch 3 and the first link 30a were closed, heater 4 was connected to the sub-A of first power connection end via second circuit 32 and first circuit 31, and then is connected to the first conductor 10a and the second conductor 10b.When leaky took place, between the conduction inserted sheet of promptly a pair of jack 10 or when being formed with electric current on every side, this electric current was derived by the first conductor 10a and the second conductor 10b, and sub-A flows through heater 4 through first power connection end, makes it heating.When temperature rose to predetermined value, temperature sense circuit breaker 5 worked, and tertiary circuit 33 is disconnected, and cut-out socket 1 is connected with power supply AC's.Like this, eliminated the hidden danger that causes fire because of electric leakage.
In a preferred embodiment, this temperature sense circuit breaker 5 is the temperature fuse.
In another embodiment, this temperature sense circuit breaker 5 can be bimetal leaf, and the bimetallic sector-meeting automatically springs open and cuts off tertiary circuit 33 when temperature raises.
When the cardinal extremity 30 of diverter switch 3 and the second link 30b were closed, as shown in Figure 3, the electric current between the jack 10 was guided ground, worked to be similar in the background technology mode of structure, prevented that electric leakage from causing fire.
In the above-mentioned diverter switch 3, when cardinal extremity 30 can be connected with the first link 30a, be state shown in Figure 2, tripper works.When cardinal extremity 30 is connected with the second link 30b, be state shown in Figure 3, with the earthing mode guide current.When cardinal extremity 30 disconnects, when not being connected with first or second link, as shown in Figure 1, guide current not.The user can select the connection status of diverter switch according to actual needs.
This diverter switch 3 can be arranged so that also cardinal extremity 30 can only select to be connected with the first link 30a or the second link 30b, the form that disconnects fully not, can allow the user select according to actual needs like this, can guarantee that again anticreep function works.
Figure 4 shows that another execution mode of the present utility model, tripper can not have the structure of earth connection, and the structure of having heaters 4 and temperature sense circuit breaker 5 only, can realize preventing the function of leaking electricity equally.In this embodiment, diverter switch 3 can be set, also diverter switch 3 can be set, allow line related directly connect, guarantee that anticreep function works.
The advantage of above-mentioned supply socket is do not having under the situation of earth connection, can allow electric current generate heat by heater.When temperature reaches predetermined value, blow the temperature fuse or allow bimetal leaf flick deenergization, reach the function that prevents fire, guarantee safe handling.
Moreover, having under the situation of diverter switch, can allow the user select temperature sense circuit breaker circuit functions still to allow ground path work according to actual needs, use the flexibility height.
In another embodiment, as shown in Figure 5, in this tripper, diverter switch 3 is omitted, and directly the sub-A of first power connection end is connected with heater 4, and the sub-A of first power connection end is also as earth terminal simultaneously.Like this, under the situation that earth connection exists, the sub-A of first power connection end preferentially is directed to electric current ground; And under the situation that does not have earth connection to exist, the electric current heater 4 of then flowing through makes it heating, and when temperature rose to predetermined value, temperature sense circuit breaker worked, and realizing equally prevents to leak electricity causes the effect of fire.
The advantage of socket is to have omitted diverter switch in the above-mentioned execution mode, and is simple in structure, but still can guarantee anti-creeping effect.
According to another execution mode of the present utility model is attaching plug, its circuit structure and shown in Figure 1 just the same, and just the jack 10 among Fig. 1 is the insertion section that can insert jack in attaching plug.First conductor and second conductor be respectively formed between the insertion section and the insertion section around.Those skilled in the art can easily know the structure of this attaching plug by the description to socket, therefore no longer it are elaborated.
In addition, in the utility model, in above-mentioned socket, the plug, also can only comprise the first conductor 10a, only at the electric current channeling conduct between conduction inserted sheet or the plug insertion section, and do not comprise the second conductor 10b to electric current channeling conduct around conduction inserted sheet or the insertion section.
Except above-mentioned socket and plug, tripper of the present utility model also may be used on other charged or power supply unit.For example, may be used on the storage battery, two jack positions of above-mentioned socket can be distinguished the both positive and negative polarity of corresponding storage battery, thereby can prevent that also storage battery from causing the hidden danger of fire because of electric leakage.
Those skilled in the art are easy to by above explanation tripper of the present utility model is applied to various occasions.Should be appreciated that these application scenarios are included in the scope or equivalency range that the utility model claims are contained.
Claims (10)
1. a tripper is characterized in that, comprising:
Diverter switch (3), described diverter switch comprise cardinal extremity (30), and can select to disconnect or closed first link (30a) with described cardinal extremity;
First circuit (31), first end of described first circuit are first power connection end (A), and second end is electrically connected with the cardinal extremity (30) of diverter switch (3);
Second circuit (32), first end of described second circuit is electrically connected with first link (30a) of described diverter switch (3), second end is second power connection end (B) that is electrically connected with a utmost point of power supply, and described second circuit has the heater (4) that is connected between described diverter switch (3) first links and described second power connection end (B);
Tertiary circuit (33), first end of described tertiary circuit is the 3rd power connection end (C), second end is electrically connected with another utmost point of power supply, and described tertiary circuit has the temperature sense circuit breaker (5) that is connected between described the 3rd power connection end (C) and another utmost point of described power supply.
2. tripper as claimed in claim 1 is characterized in that, described diverter switch (3) also comprises can be selected to disconnect or closed second link (30b) with described cardinal extremity (30), and described second link is an earth terminal.
3. tripper as claimed in claim 2 is characterized in that, in the described diverter switch (3), when described cardinal extremity (30) and first link (30a) are closed, disconnects with second link (30b); And when described cardinal extremity (30) disconnects with first link (30a), with second link (30b) closure.
4. tripper as claimed in claim 1 is characterized in that, described temperature sense circuit breaker (5) is temperature fuse or bimetal leaf.
5. a tripper is characterized in that, comprising:
First power connection end (A);
Second power connection end (B) that is electrically connected with a utmost point of power supply;
Be connected on the heater (4) between described first power connection end (A) and described second power connection end (B);
The 3rd power connection end (C), and
Be connected on the temperature sense circuit breaker (5) between described the 3rd power connection end (C) and another utmost point of described power supply.
6. tripper as claimed in claim 5 is characterized in that, described temperature sense circuit breaker (5) is temperature fuse or bimetal leaf.
7. supply socket comprises the jack (10) that at least one pair of power supply source plug inserts, and described jack respectively has the conduction inserted sheet; Be arranged on first conductor (10a) between the described jack; It is characterized in that described supply socket comprises also that as each described tripper among the claim 1-6 wherein said first conductor is electrically connected with first power connection end (A); A conduction inserted sheet in the described a pair of jack is electrically connected with second power connection end (B); Another conduction inserted sheet in the described jack is electrically connected with the 3rd power connection end (C).
8. supply socket as claimed in claim 7 is characterized in that, also comprises being arranged on described jack second conductor (10b) on every side, and described first conductor and described second conductor are electrically connected.
9. an attaching plug comprises a pair of insertion section of inserting supply socket; Be arranged on first conductor between the described insertion section; It is characterized in that described attaching plug comprises also that as each described tripper among the claim 1-6 wherein said first conductor and second conductor are electrically connected with first power connection end (A); In the described a pair of insertion section one is electrically connected with second power connection end (B); In the described insertion section another is electrically connected with the 3rd power connection end (C).
10. attaching plug as claimed in claim 9 is characterized in that, also comprises being arranged on described insertion section second conductor on every side, and described first conductor and described second conductor are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202977189U CN201918332U (en) | 2010-08-19 | 2010-08-19 | Circuit-breaking device preventing fire accidents caused by electric leakage as well as socket and plug comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202977189U CN201918332U (en) | 2010-08-19 | 2010-08-19 | Circuit-breaking device preventing fire accidents caused by electric leakage as well as socket and plug comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918332U true CN201918332U (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202977189U Expired - Fee Related CN201918332U (en) | 2010-08-19 | 2010-08-19 | Circuit-breaking device preventing fire accidents caused by electric leakage as well as socket and plug comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024241A (en) * | 2014-04-23 | 2015-11-04 | 胜德国际研发股份有限公司 | Power extension line and power plug and socket thereof |
-
2010
- 2010-08-19 CN CN2010202977189U patent/CN201918332U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024241A (en) * | 2014-04-23 | 2015-11-04 | 胜德国际研发股份有限公司 | Power extension line and power plug and socket thereof |
| CN105024241B (en) * | 2014-04-23 | 2018-10-16 | 胜德国际研发股份有限公司 | Power extension line and power plug and socket thereof |
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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: 20110803 Termination date: 20160819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |