CN2336417Y - Inductive electric shock preventing alarm device - Google Patents
Inductive electric shock preventing alarm device Download PDFInfo
- Publication number
- CN2336417Y CN2336417Y CN 97246379 CN97246379U CN2336417Y CN 2336417 Y CN2336417 Y CN 2336417Y CN 97246379 CN97246379 CN 97246379 CN 97246379 U CN97246379 U CN 97246379U CN 2336417 Y CN2336417 Y CN 2336417Y
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- electric
- electrocution
- alarming device
- 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
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The utility model provides an inductive electric-shock-proof alarm used in an electric power system. The utility model is mainly composed of a power supply part, a signal reception and input part, a signal amplification part and a signal output alarm part, wherein, the signal reception and input part is composed of an electric-field sensor of the electromagnetic induction method or an infrared sensor of the human body induction photoelectric control. The problem that an existing alarm often has alarm failure and not true enough test results is solved. The utility model, which has the advantages that the sensitivity is high, that no maintenance is needed, that whether a tested area or a tested device is electrified or not can be reflected objectively and truly, etc., guarantees the personal safety of working staff.
Description
The utility model relates to a kind of electrocution-proof alarming device that is used for electric system, particularly a kind of induction type electrocution-proof alarming device that uses in high-low pressure transformer station.
At present, in the power supply of China, transmission and disttrbution system, the transformer station that mostly adopts the three-phase alternating-current supply electric system.Because the transmission line of electricity complexity of transformer station, electric pressure is varied, and carry out the back brake operation frequently according to different situation needs, so usually electric shock accidents takes place in the mistakenly entering into charged zone because the staff confirms unclear in operating process, brought certain danger to the staff.Although in existing transformer station, generally adopted charging zone is isolated with the form of High-Voltage Network door, and utilize cooperatively interacting of door contact switch and alarm to reach and remind the staff to prevent the purpose of getting an electric shock, but the warning device of this kind form also exists the following shortcoming: 1, the alarm of this kind structure is to adopt the mode of door contact directly to trigger control, As time goes on through regular meeting because door corrosion of contact or insufficient pressure etc. are former thereby the malfunctioning problem of reporting to the police occurs, need frequent maintenance, waste of manpower, material resources; No matter whether charged 2 detected equipment are, send alerting signal as long as draw back net Men Jun, therefore fail to reflect the truth that detected equipment is whether charged, often cause illusion to the staff, very unfavorable to real work.
The purpose of this utility model is to provide and prevents in a kind of transformer station that is used for electric system in staff's mistakenly entering into charged district or the net door and the induction type electrocution-proof alarming device of electric shock injures and deaths and equipment short circuit accident takes place.
Another purpose of the present utility model is to provide the induction type electrocution-proof alarming device that can reflect truly in a kind of transformer station that is used for electric system that detected equipment is whether charged.
The purpose of this utility model is to realize like this, this kind induction type electrocution-proof alarming device, mainly by power unit, signal receives the importation, signal amplifying part is divided and signal output alarm part is formed, and signal receives the importation and is made up of the electric-field sensor of way of electromagnetic induction.
Another kind of improvement of the present utility model is the infrared sensor that is parallel with the human body sensing photoelectric control on the electric-field sensor of the way of electromagnetic induction of signal reception importation.
In order intuitively to reflect the charged situation of detected equipment truly, induction type electrocution-proof alarming device of the present utility model, signal one tunnel after the electric-field sensor input is amplified is sent to the grade that display circuit is used for display voltage, one the tunnel is sent to on-off circuit, and is used for language alarm by on-off circuit triggering language memory.Be sent to on-off circuit through infrared sensor input amplifying signal, and be used for language alarm by on-off circuit triggering language memory.
The utility model is little in light weight except that having volume, AC/DC, the little power consumption cost is low, outside the advantage such as easy for installation, being made up of the infrared sensor of the electric-field sensor of way of electromagnetic induction or human body sensing photoelectric control because signal receives the importation, is to adopt non-contacting mode to carry out work, therefore also has the highly sensitive of warning, do not need repairing, and can objective reality ground reflect characteristics such as whether charged detected zone or equipment.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is a front view of the present utility model;
Fig. 3 is the rear view of Fig. 2.
As shown in Figure 1, the utility model is mainly by power unit, signal receives the importation, signal amplifying part is divided and signal output alarm part is formed, and the infrared sensor of the human body sensing photoelectric control that signal reception importation is in parallel by the electric-field sensor of way of electromagnetic induction and with electric-field sensor is formed.Wherein, electric-field sensor is made up of the amplifying circuit of high impedance, specifically comprises being used for the inductance L that signal receives, and the electric field signal that receives is carried out differential ratio ic chip 4, IC5, and the ic chip 6 that the signal of differential ratio after amplified.In addition, in order intuitively to reflect the charged situation of detected equipment truly, the signal that ic chip 6 is amplified output is divided into two-way: one tunnel input end that is sent to display circuit LM3914 sends the display alarm signal, demonstrate the grade of voltage simultaneously, one the tunnel is sent to the on-off circuit of being made up of ic chip 7, and triggers the language memory by on-off circuit.The infrared sensor of human body sensing photoelectric control is made up of infrared switch circuit, specifically comprises the infrared light emission circuit be made up of triode BG1, BG2, BG3 and infrarede emitting diode D1, D2, the infrared receiving circuit of being made up of infrared receiving diode D3 and ic chip 1, the IC2 that is used for signal amplification, shaping and sensitivity adjustment cooperatively interact and form.Be sent to on-off circuit IC3 and be used for language alarm through infrared sensor input amplifying signal by on-off circuit IC3 triggering language memory.
As shown in Figure 1, the course of work of the present utility model is as follows: the electric field signal that is received by the inductance L in the electric-field sensor carries out differential ratio through ic chip 4, IC5 and is input to ic chip 6 after and amplifies, because this circuit has higher input impedance, so also be easy to detect for more weak electric field signal.The signal that amplifies output through ic chip 6 is divided into two-way: one tunnel input end that is sent to display circuit LM3914 sends the display alarm signal, demonstrates the grade of voltage simultaneously; One the tunnel is sent to the on-off circuit of being made up of ic chip 7, and by on-off circuit triggering language memory, carry out power amplification by the language memory through the BTL circuit of forming by power amplifier TDA2822, and send the audible ringing signal of " electricity is arranged, and Danger! Keep Away ".The infrared ray that is sent by infrarede emitting diode D1, D2 is received by infrared receiving diode D3 by reflect (having the people to enter) certainly in detected zone, 1 input is amplified through ic chip then, again through ic chip 2 shapings and sensitivity adjustment, signal by ic chip 2 outputs becomes switching signal through ic chip 3, remove to trigger the language memory by pin 3 output high level, carry out power amplification by the language memory through the BTL circuit of forming by power amplifier TDA2822, and send the audible ringing signal of " have electricity Danger! Keep Away ".
Shown in Fig. 2,3, this figure is the overall construction drawing that the circuit theory diagrams by Fig. 1 combine with the protection against electric shock sign board, be furnished with power switch 10 above, loudspeaker 11, power lead 12, verification switch 13, sensor selector switch 14, infrared sensor input jack 15, electric-field sensor jack 16 and flash of light indication lamp 1, electric pressure display segment 2-8 forms.
Electric-field sensor of the present utility model and infrared sensor both can use separately, also can use simultaneously, when its difference is to use separately, must connect with the language memory from the pulse signal that on-off circuit sends.When using simultaneously, receive in the circuit of input by electric-field sensor generally speaking, disconnect between the output terminal of its on-off circuit and the language memory, perhaps the form with the door contact connects, in order to avoid when there is electricity in detected zone, the warning that triggers the language memory and do not stop by power amplifier, the alerting signal under this kind situation just can directly reflect from display circuit; Receive by infrared sensor between the output terminal of its on-off circuit in the circuit of input and the language memory and connect, as long as just there is the people in both detected zone by sending language alarm.
Claims (7)
1, a kind of induction type electrocution-proof alarming device that is used for electric system, mainly by power unit, signal receives the importation, and signal amplifying part is divided and signal output alarm part is formed, and it is characterized in that signal receives the importation and is made up of the electric-field sensor of way of electromagnetic induction.
2, induction type electrocution-proof alarming device according to claim 1 is characterized in that receiving the infrared sensor that the importation is parallel with the human body sensing photoelectric control at signal.
3, induction type electrocution-proof alarming device according to claim 1 and 2 is characterized in that the signal after the electric-field sensor input is amplified is sent to the grade that display circuit is used for display voltage.
4, induction type electrocution-proof alarming device according to claim 1 and 2 is characterized in that the signal after the electric-field sensor input is amplified is sent to on-off circuit, and is used for language alarm by on-off circuit triggering language memory.
5, induction type electrocution-proof alarming device according to claim 2 is characterized in that being sent to on-off circuit through infrared sensor input amplifying signal, and is used for language alarm by on-off circuit triggering language memory.
6, induction type electrocution-proof alarming device according to claim 1 and 2 is characterized in that electric-field sensor is made up of the amplifying circuit of high impedance.
7, induction type electrocution-proof alarming device according to claim 2 is characterized in that infrared sensor is made up of infrared switch circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246379 CN2336417Y (en) | 1997-12-08 | 1997-12-08 | Inductive electric shock preventing alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246379 CN2336417Y (en) | 1997-12-08 | 1997-12-08 | Inductive electric shock preventing alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336417Y true CN2336417Y (en) | 1999-09-01 |
Family
ID=33954587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97246379 Expired - Fee Related CN2336417Y (en) | 1997-12-08 | 1997-12-08 | Inductive electric shock preventing alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336417Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021123A (en) * | 2012-09-26 | 2013-04-03 | 河南省电力公司信阳供电公司 | Safety prompter for high-voltage transmission pole and tower |
| CN109855000A (en) * | 2019-04-19 | 2019-06-07 | 青岛亿联客信息技术有限公司 | A kind of protection against electric shock lamps and lanterns |
-
1997
- 1997-12-08 CN CN 97246379 patent/CN2336417Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021123A (en) * | 2012-09-26 | 2013-04-03 | 河南省电力公司信阳供电公司 | Safety prompter for high-voltage transmission pole and tower |
| CN109855000A (en) * | 2019-04-19 | 2019-06-07 | 青岛亿联客信息技术有限公司 | A kind of protection against electric shock lamps and lanterns |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104071715A (en) | Near-to-high-voltage safety prewarning method for construction hoist | |
| CN103366479B (en) | The tamper-proof theft protection long-distance monitorng device of transformer | |
| CN201035093Y (en) | Portable high-pressure electric shocking prevention detecting alarming device | |
| CN112053536A (en) | Induction type near live safety distance early warning system and method thereof | |
| CN111869981A (en) | High-voltage electric shock risk warning safety helmet | |
| CN206221001U (en) | A kind of safety warning device for coal mine underground personnel | |
| CN2336417Y (en) | Inductive electric shock preventing alarm device | |
| CN203444598U (en) | Manhole cover intelligent safety and protection device | |
| CN104537882A (en) | Parking place indication device used for parking lot | |
| CN202126464U (en) | High-voltage approaching alarm system | |
| CN208384784U (en) | A kind of controller switching equipment blocking warning device | |
| CN205114877U (en) | Crane protection against electric shock safety precaution device | |
| CN204884024U (en) | System's device is invaded to preventing on transmission line | |
| CN203338525U (en) | High-voltage line electrification intelligent reminder | |
| CN113671265A (en) | Electric shock early warning device for overhauling equipment based on wireless transmission | |
| CN209514834U (en) | A kind of 10kV switchgear isolation baffle plate open alarming device | |
| CN2172479Y (en) | Speaking alarming safety helmet when one being close to electricity | |
| CN210327004U (en) | Portable automatic alarm power-off protection device | |
| CN209028760U (en) | A kind of construction site fire alarm installation | |
| CN206758347U (en) | A kind of indoor alternating current high voltage vacuum load switch | |
| CN109188537A (en) | A kind of detection system for preventing to dig power-off cable | |
| CN109407155A (en) | A kind of detection method for preventing to dig power-off cable | |
| CN206258546U (en) | Circuit comprehensive monitoring alarm device on the spot | |
| CN206149563U (en) | Take earth leakage protection's urban illumination intelligent control terminal | |
| CN2483781Y (en) | Voice auto-alarming safety board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |