CN201044351Y - Device capable of alarming when abnormal voltage happens in grounding system - Google Patents
Device capable of alarming when abnormal voltage happens in grounding system Download PDFInfo
- Publication number
- CN201044351Y CN201044351Y CNU2007200503716U CN200720050371U CN201044351Y CN 201044351 Y CN201044351 Y CN 201044351Y CN U2007200503716 U CNU2007200503716 U CN U2007200503716U CN 200720050371 U CN200720050371 U CN 200720050371U CN 201044351 Y CN201044351 Y CN 201044351Y
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- Prior art keywords
- grounding system
- abnormal voltage
- leakage protection
- protection device
- photoelectrical coupler
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Abstract
The utility model discloses a device which sends out alarm when abnormal voltage appears in grounding system. The device is arranged on and cooperates with an omnipotent leakage protector, wherein, an emission part of a photocoupler is connected between a fixed contact and a moving contact of a ground wire normally closed contact pair, and the receiving part of the photocoupler has an output terminal connected with a signal input terminal of an acousto-optic alarm circuit. The L electrode and the N electrode of the power input terminal of the omnipotent leakage protector supply power to the alarm circuit directly. Once the power is off due to utilization fault, the device can check the grounding system immediately and automatically and sends out alarm when abnormal voltage appears in the grounding system, and this alarm can not appear unless the omnipotent leakage protector is completely disconnected with the power. The utility model can be widely applied to various household appliances and daily appliances for safe electricity utilization protection.
Description
Technical field
The utility model relates to the safety technique for using electricity field, particularly a kind of device that can send the indication of reporting to the police when abnormal voltage appears in grounding system.
Background technology
Grounding system is a protection system the most basic in the safety utilization of electric power; so-called grounding system; be exactly the independent supporting buried underground copper bars of an end of every building building; the other end is received respectively in the socket earth polar jack of every household; when plug was inserted into this socket, the earth polar copper pin on the plug was connected with hole, socket earth polar, the yellowish green guardwire of PE that is riveted on plug earth polar copper pin then with the palp metal parts of electrical equipment; for example shell connects, and forms a complete grounding system.There is the I electric appliances of grounding requirement all need allow it keep no-voltage, to ensure user's personal safety with palp conductiving metal part is connected with grounding system.In case yet the grounding system appearance is unusual, for example occurs wiring error, socket or unexpected factors such as circuit damage and short circuit on the socket and all might make the grounding system part charged, thereby cause the electric shock casualty accident.The Chinese invention patent communique discloses a kind of all-purpose leakage protection plug; its patent publication No. is CN1350352A; this all-purpose leakage protection plug is a kind of comprehensive Electrical Safety protector; it is except having creepage protection function; the more important thing is that it is when grounding system is unusual; a pair of earth polar contact that also can be by its inside is the grounding system disjunction, thereby allows in the palp metallic conduction parts of electrical equipment and the socket charged hole, earth polar separate, and guarantees user's safety.In case when the all-powerful leakage protection device moves because abnormal voltage is arranged grounding system,, can not send clear and definite warning indication though it can the disengagement failure power supply.
Summary of the invention
The purpose of this utility model is to provide a kind of device that can send the indication of reporting to the police when abnormal voltage appears in grounding system; this warning indicating device is contained on the all-powerful leakage protection device and is mated work; in case when cutting off the power supply with electric fault; it can detect grounding system immediately automatically; when grounding system band abnormal voltage, will send the indication of reporting to the police; unless all-powerful leakage protection device and power supply are broken away from fully, otherwise this warning can not disappear.
The technical solution that the utility model proposed is such: a kind of device that can send the indication of reporting to the police when abnormal voltage appears in grounding system; comprise the all-powerful leakage protection device and in the earth polar normally closed interlock established right decide contact and moving contact; and warning circuit; also be provided with photoelectrical coupler; radiating portion two inputs of this photoelectrical coupler are connected on respectively that the earth polar of all-powerful leakage protection device is normally closed decides on contact and the moving contact; receiving unit two outputs of described photoelectrical coupler are connected with warning circuit two signal input parts respectively, these warning circuit two power inputs respectively with the all-powerful leakage protection device in the power input L utmost point be connected with the N utmost point.
The executive component of described warning circuit can adopt buzzer and/or dodge indicator light frequently.Described photoelectrical coupler is contained in the all-powerful leakage protection device that matches.
When electricity consumption just often, all can leak in the protector earth polar moving, decide contact and be in closure state, the emission part two ends of photoelectrical coupler do not have voltage, do not work, and do not have signal to send.In case earth polar band abnormal voltage; then all-powerful leakage protection device action, the earth polar normally closed interlock is to disjunction, and grounding system is just detected automatically; the radiating portion of photoelectrical coupler will send signal and be received partly and receive, and photoelectrical coupler just drives warning circuit and sends sound, visual alarm.Because the all-powerful leakage protection device is irreducible when ground wire electrification; its earth polar contact is to can not auto-closing; therefore the indication of reporting to the police can not disappear, unless the all-powerful leakage protection device separated fully with power supply or after grounding system fault gets rid of, indicate and can disappear just report to the police.
Compared with prior art, the beneficial effect that the utility model produced is:
(1) device that when abnormal voltage appears in grounding system, can send the indication of reporting to the police that is used for cooperating with all-powerful leakage protection device (plug); in using electric process; in case electric fault occurs using; in the outage of all-powerful leakage protection device; can detect its grounding system immediately automatically; will send alarm signal when grounding system has abnormal voltage, allow the user can make right judgement immediately.
(2) device that when abnormal voltage appears in grounding system, can send the indication of reporting to the police that is used for cooperating with all-powerful leakage protection device (plug); be that radiating portion two inputs and earth polar normally closed interlock by photoelectrical coupler is to being connected; have only when the action of all-powerful leakage protection device; its is just in running order, also has only when the band abnormal voltage of earth polar its signal that just can give the alarm.
(3) because being power inputs by all-powerful leakage protection device (plug), its sounding and/or luminous warning circuit provide working power; the switching state of it and all-powerful leakage protection device is irrelevant; just be in holding state so long as be connected it, thereby need not to put in addition the power supply power supply with power supply.Can become the signal that is measured the alarm signal of sound, light, sudden strain of a muscle frequency or the like form simultaneously, the alarm signal of being sent can be very eye-catching, lasting, thereby more effectively informs the user.
The utility model can be widely used in and do the safety utilization of electric power protection in various household electrical appliance, the household appliance.
Description of drawings
Fig. 1 is the device conspectus that can send the indication of reporting to the police when abnormal voltage appears in grounding system that is used for cooperating with all-powerful leakage protection device (plug) of an embodiment of the utility model.
Embodiment
By following embodiment the utility model is described in further detail.
Referring to shown in Figure 1, an embodiment of the present utility model sends the device of the indication of reporting to the police and is made up of photoelectrical coupler 1, warning circuit 6 and all-powerful leakage protection device (plug) 9 when abnormal voltage appears in grounding system.Photoelectrical coupler 1 is made up of radiating portion 2 and receiving unit 5.It is right to be provided with earth polar 14 normally closed interlocks in the all-powerful leakage protection device 9, and this contact is to by deciding contact 10 and moving contact 11 is formed.2 liang of inputs of the radiating portion of photoelectrical coupler 1 are decided contact 10 and are connected with moving contact 11 with described by lead 3 and lead 4 respectively; 5 liang of outputs of the receiving unit of photoelectrical coupler 1 are connected with 6 liang of signal input parts of warning circuit respectively, and 6 liang of power inputs of warning circuit are connected with the N utmost point 13 with the power input L utmost point 12 of all-powerful leakage protection device 9 respectively with lead 8 by lead 7.During actual the use, all-powerful leakage protection device 9, photoelectrical coupler 1, warning circuit 6 are to be contained in three utmost point Single-phase plugs, and described earth polar 14, the L utmost point 12, the N utmost point 13 are connected respectively with three copper pin of corresponding plug.
Because warning circuit 6 is the power inputs that directly are connected on all-powerful leakage protection device 9, therefore as long as this protector 9 is connected with the mains, warning circuit 6 just is connected with power supply, and is in running order, not whether influenced by all-powerful leakage protection device (plug) 9 switchings.When having electric current suddenly, ground wire 14 flows through; all-powerful leakage protection device (plug) 9 actions; fixed, moving contact 10,11 automatic disjunctions; it is in running order to be connected on earth polar 14 these emission parts 2 to the photoelectrical coupler 1 at contact two ends; signal output is arranged immediately; and be emitted to its reception part 5, drive warning circuit 6 and send sound, light warning.Warning circuit 6 can adopt buzzer sounding or luminous with photoelectric cells such as luminous tube, neon lamps; also can send intermittent flash of light or send sound and optic signal simultaneously; in time tell charged cannot the re-using in earth polar of this supply socket of user; have only the normal or all-powerful leakage protection device (plug) 9 of power ground system restoration to pull out from supply socket, alarm signal just can disappear.
Claims (3)
1. one kind can be sent the device of reporting to the police and indicating when abnormal voltage appears in grounding system; comprise the all-powerful leakage protection device and in the earth polar normally closed interlock established right decide contact and moving contact; and warning circuit; it is characterized in that: also be provided with photoelectrical coupler; radiating portion two inputs of this photoelectrical coupler are connected on respectively that the earth polar of all-powerful leakage protection device is normally closed decides on contact and the moving contact; receiving unit two outputs of described photoelectrical coupler are connected with warning circuit two signal input parts respectively, these warning circuit two power inputs respectively with the all-powerful leakage protection device in the power input L utmost point be connected with the N utmost point.
2. the device that can send the indication of reporting to the police when abnormal voltage appears in grounding system according to claim 1 is characterized in that: the executive component of described warning circuit can be buzzer and/or dodge indicator light frequently.
3. the device that can send the indication of reporting to the police when abnormal voltage appears in grounding system according to claim 1, it is characterized in that: described photoelectrical coupler is contained in the all-powerful leakage protection device that matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200503716U CN201044351Y (en) | 2007-04-11 | 2007-04-11 | Device capable of alarming when abnormal voltage happens in grounding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200503716U CN201044351Y (en) | 2007-04-11 | 2007-04-11 | Device capable of alarming when abnormal voltage happens in grounding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044351Y true CN201044351Y (en) | 2008-04-02 |
Family
ID=39259241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200503716U Expired - Fee Related CN201044351Y (en) | 2007-04-11 | 2007-04-11 | Device capable of alarming when abnormal voltage happens in grounding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201044351Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286632B (en) * | 2007-04-11 | 2010-04-07 | 刘锦泰 | Device to send out alarming indication when abnormal voltage appearing in grounding system |
| CN101334442B (en) * | 2008-07-29 | 2010-06-23 | 深圳和而泰智能控制股份有限公司 | Earth wire detector |
-
2007
- 2007-04-11 CN CNU2007200503716U patent/CN201044351Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286632B (en) * | 2007-04-11 | 2010-04-07 | 刘锦泰 | Device to send out alarming indication when abnormal voltage appearing in grounding system |
| CN101334442B (en) * | 2008-07-29 | 2010-06-23 | 深圳和而泰智能控制股份有限公司 | Earth wire detector |
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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: 20080402 |