CN207690258U - A kind of induction-type high-voltage warning device - Google Patents
A kind of induction-type high-voltage warning device Download PDFInfo
- Publication number
- CN207690258U CN207690258U CN201820038084.1U CN201820038084U CN207690258U CN 207690258 U CN207690258 U CN 207690258U CN 201820038084 U CN201820038084 U CN 201820038084U CN 207690258 U CN207690258 U CN 207690258U
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- China
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- resistance
- time base
- base circuit
- capacitance
- field
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Abstract
A kind of induction-type high-voltage warning device of the utility model, belongs to high pressure detection technique field；The technical problem to be solved is that provide a kind of compact, induction-type high-voltage warning device at low cost and high reliability；Solve the technical solution that the technical problem uses for：Including sensing chip, field-effect tube Q, time base circuit IC555, adjustable resistance R1, resistance R2, resistance R3, capacitance C1, capacitance C2, transformer T, piezoelectric ceramics piezo HTD, switch K and power supply E, sensing chip incudes surrounding electric field, it is input to time base circuit IC555 by field-effect tube Q, time base circuit IC555 driving piezoelectric ceramics piezo HTD generates alarm buzzer；The utility model can be widely applied to operations involving high pressure field.
Description
Technical field
A kind of induction-type high-voltage warning device of the utility model, belongs to high pressure detection technique field.
Background technology
High-tension line staff is off one's guard to cause accidentally ascend a height piezoelectric bar or mistake when high-tension line works at present
Enter live high voltage region, causes Personal Risk.Staff's maloperation is prevented as one kind, prevents one that is strayed into high-pressure area
Technological means, alarm for high voltage device seem extremely important to personal safety.But existing high-voltage line attention device volume is larger,
High-tension line staff carries not convenient enough.Therefore it needs a kind of portable, staff's pocket or safety cap can be mounted in
In induction-type high-voltage warning device.
Utility model content
A kind of induction-type high-voltage warning device of the utility model, overcomes the shortcomings of the prior art, provides one kind
Compact, induction-type high-voltage warning device at low cost and high reliability.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of induction-type high-voltage alarm dress
Set, including sensing chip, field-effect tube Q, time base circuit IC555, adjustable resistance R1, resistance R2, resistance R3, capacitance C1, capacitance C2,
Transformer T, piezoelectric ceramics piezo HTD, switch K and power supply E, sensing chip are connected with the grid of field-effect tube Q, field-effect tube Q
Drain electrode be connected with one end of adjustable resistance R1, the other end of adjustable resistance R1 is connected with 8 feet of time base circuit IC555, Shi Ji
1 foot of IC circuit 555 is connected with the source electrode of field-effect tube Q, and the output signal of 3 feet of time base circuit IC555 is after capacitance C2
Into the primary coil of transformer T, the secondary coil of transformer T is connected with piezoelectric ceramics piezo HTD, and switch K goes here and there with power supply E
Connection, resistance R2, resistance R3 and capacitance C1 sequence are connected to form branch, in the branch one end of resistance R2 respectively with time base circuit
8 feet of IC555 are connected with switch K, in the branch one end of capacitance C1 respectively with 1 foot of time base circuit IC555, transformer T
One end is connected with the cathode of power supply E, and 7 feet of time base circuit IC555 are connected between resistance R2 and resistance R3, time base circuit IC555
2 feet and 6 feet be connected be followed by between resistance R3 and capacitance C1.
Further, the power supply E is 6V layer build dry cells.
Further, the sensing chip is copper sheet.
Compared with prior art, the utility model have the advantage that for.
1. when electrician accidentally ascends a height piezoelectric bar or mistakenly entering into charged high-pressure area, the present apparatus can send out alarm signal
Number, staff is reminded, good warning function is played to staff.
2, the present apparatus is small, can be mounted in electrician's safety cap or coat pocket, be suitable for various electrifications
Equipment working environment.
3, the electric elements that the present apparatus uses are few, at low cost, have the advantage for being easy to promote..
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific implementation mode
As shown in Figure 1, a kind of induction-type high-voltage warning device of the utility model, including sensing chip, field-effect tube Q, Shi Ji
IC circuit 555, resistance R2, resistance R3, capacitance C1, capacitance C2, transformer T, piezoelectric ceramics piezo HTD, is opened adjustable resistance R1
K and power supply E is closed, sensing chip is connected with the grid of field-effect tube Q, the drain electrode of field-effect tube Q and one end phase of adjustable resistance R1
Even, the other end of adjustable resistance R1 is connected with 8 feet of time base circuit IC555, and 1 foot of time base circuit IC555 is with field-effect tube Q's
Source electrode is connected, and the output signal of 3 feet of time base circuit IC555 enters the primary coil of transformer T, transformer after capacitance C2
The secondary coil of T is connected with piezoelectric ceramics piezo HTD, and switch K connects with power supply E, resistance R2, resistance R3 and capacitance C1 sequences
It is connected to form branch, one end of resistance R2 is connected with 8 feet of time base circuit IC555 and switch K respectively in the branch, in the branch
One end of capacitance C1 is connected with the cathode of 1 foot of time base circuit IC555, one end of transformer T and power supply E respectively, time base circuit
7 feet of IC555 are connected between resistance R2 and resistance R3, and 2 feet and 6 feet of time base circuit IC555, which are connected, to be followed by resistance R3 and electricity
Between appearance C1.
Power supply E is 6V layer build dry cells.Sensing chip is copper sheet.
The working process and principle of the utility model are further illustrated：When the non-inductive voltage of the sensing chip of the present apparatus,
Field-effect tube Q is in zero bias state, and resistance is smaller between drain electrode and source electrode, 4 feet with the time base circuit IC555 of drain electrode connection
In low potential, time base circuit IC555 does not work, and 3 foot no audio signals output, piezoelectric ceramics piezo HTD does not send out alarm
Sound；When warning device is close to high-voltage charged body, the sensing chip being connect with field-effect tube Q grids senses electric field signal, makes field
Resistance increases between effect pipe Q drain electrodes and source electrode, and 4 feet of time base circuit IC555 obtain high potential, the oscillator of IC555 compositions
3 feet of starting of oscillation, time base circuit IC555 export audio oscillator signal, are coupled through capacitance C2, after transformer T boostings, driving pressure
Electroceramics piezo HTD sends out alarm signal.Adjustable resistance R1 is used for adjusting the sensitivity of present apparatus induced voltage.
The embodiments of the utility model have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.
Claims (3)
1. a kind of induction-type high-voltage warning device, it is characterised in that：Including sensing chip, field-effect tube Q, time base circuit IC555, can
Resistance R1, resistance R2, resistance R3, capacitance C1, capacitance C2, transformer T, piezoelectric ceramics piezo HTD, switch K and power supply E are adjusted,
Sensing chip is connected with the grid of field-effect tube Q, and the drain electrode of field-effect tube Q is connected with one end of adjustable resistance R1, adjustable resistance R1
The other end be connected with 8 feet of time base circuit IC555,1 foot of time base circuit IC555 is connected with the source electrode of field-effect tube Q, Shi Ji
The output signal of 3 feet of IC circuit 555 after capacitance C2 enter transformer T primary coil, the secondary coil of transformer T with
Piezoelectric ceramics piezo HTD is connected, and switch K connects with power supply E, and resistance R2, resistance R3 and capacitance C1 sequences are connected to form branch,
One end of resistance R2 is connected with 8 feet of time base circuit IC555 and switch K respectively in the branch, one end of capacitance C1 in the branch
It is connected respectively with the cathode of 1 foot of time base circuit IC555, one end of transformer T and power supply E, 7 feet of time base circuit IC555 connect
Between resistance R2 and resistance R3,2 feet and 6 feet of time base circuit IC555, which are connected, to be followed by between resistance R3 and capacitance C1.
2. a kind of induction-type high-voltage warning device according to claim 1, it is characterised in that：The power supply E is 6V laminations
Dry cell.
3. a kind of induction-type high-voltage warning device according to claim 1 or 2, it is characterised in that：The sensing chip is copper
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038084.1U CN207690258U (en) | 2018-01-10 | 2018-01-10 | A kind of induction-type high-voltage warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038084.1U CN207690258U (en) | 2018-01-10 | 2018-01-10 | A kind of induction-type high-voltage warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690258U true CN207690258U (en) | 2018-08-03 |
Family
ID=62991457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038084.1U Expired - Fee Related CN207690258U (en) | 2018-01-10 | 2018-01-10 | A kind of induction-type high-voltage warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564893A (en) * | 2020-06-29 | 2020-08-21 | 贵州电网有限责任公司 | Micro-positioning base station power supply assembly for transformer substation and control method thereof |
-
2018
- 2018-01-10 CN CN201820038084.1U patent/CN207690258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564893A (en) * | 2020-06-29 | 2020-08-21 | 贵州电网有限责任公司 | Micro-positioning base station power supply assembly for transformer substation and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190110 |