CN206805222U - A kind of auto-power-off device - Google Patents
A kind of auto-power-off device Download PDFInfo
- Publication number
- CN206805222U CN206805222U CN201720521200.0U CN201720521200U CN206805222U CN 206805222 U CN206805222 U CN 206805222U CN 201720521200 U CN201720521200 U CN 201720521200U CN 206805222 U CN206805222 U CN 206805222U
- Authority
- CN
- China
- Prior art keywords
- power
- control circuit
- auto
- pressure sensor
- output end
- 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
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Keying Circuit Devices (AREA)
Abstract
The utility model belongs to energy-saving safe alarm set, more particularly to a kind of auto-power-off device.The utility model includes the pressure sensor being arranged in lock box, the output end of the pressure sensor is connected by analog to digital conversion circuit and the input of control circuit, the output end connection relay of the control circuit, the power output end of the power input connection power supply circuit of the control circuit.Last dead bolt is extend into lock box, and dead bolt touches pressure sensor, is sequentially output signal to analog to digital conversion circuit, control circuit, relay, relay makes all electrical equipment be stopped, of the present utility model simple in construction to reach indoor power-off fireproof purpose, cost is cheap, it is easy to accomplish.
Description
Technical field
The utility model belongs to energy-saving safe alarm set, more particularly to a kind of auto-power-off device.
Background technology
Student is leaving dormitory, or employee is After Hours, because the reasons such as careless omission can usually be forgotten to close window, forgets to close
The electrical equipment such as computer, printer in office, this both brought potential safety hazard to dormitory or office, also with currently being advocated
The theory that economizes on resources it is opposite.
Existing auto-power-off device is usually complicated, and cost is high, it is not easy to realizes.
Utility model content
The utility model is in order to overcome the above-mentioned deficiencies of the prior art, there is provided a kind of simple in construction, cost is cheap, is easy to
The auto-power-off device of realization.
Solves the problems, such as techniques discussed above, the technical scheme that the utility model is taken is：
A kind of auto-power-off device includes the pressure sensor being arranged in lock box, and the output end of the pressure sensor is led to
The input for crossing analog to digital conversion circuit and control circuit connects, the output end connection relay of the control circuit, the control
The power output end of the power input connection power supply circuit of circuit.
Preferably, this auto-power-off device also includes controlling switch, the output end connection control circuit of the controlling switch
Input.
Preferably, the control circuit includes 89C51 single-chip microcomputers.
Preferably, the pressure sensor is piezoresistive pressure sensor.
Further, the power supply circuit is lithium battery.
The beneficial effects of the utility model are：
(1), the utility model includes being arranged at pressure sensor in lock box, and analog to digital conversion circuit, control circuit,
Controlling switch, last dead bolt are extend into lock box, and dead bolt touches pressure sensor, are sequentially output signal to analog-to-digital conversion
Circuit, control circuit, relay, relay make all electrical equipment be stopped, to reach indoor power-off fireproof purpose, this practicality
New structure is simple, and cost is cheap, it is easy to accomplish.
(2), the utility model is provided with controlling switch, for controlling the work of control circuit, it is undesirable to automatically powers off dress
In the case of putting work, controlling switch is opened, adds alternative of the present utility model.
Brief description of the drawings
Fig. 1 connects block diagram for composition of the present utility model.
Reference implication in figure is as follows：
10-pressure sensor, 20-analog to digital conversion circuit, 30-control circuit
40-controlling switch, 50-power supply circuit
Embodiment
It is the shape of each component for example involved to specific embodiment of the present utility model, construction, each below against accompanying drawing
The effect of mutual alignment and annexation, each several part between part and operation principle etc. are described in further detail：
As shown in figure 1, a kind of auto-power-off device includes the pressure sensor 10 being arranged in lock box, the pressure sensing
The output end of device 10 is connected by analog to digital conversion circuit 20 with the input of control circuit 30, the output end of the control circuit 30
Connect relay, the power output end of the power input connection power supply circuit of the control circuit 30, this auto-power-off device
Also include controlling switch 40, the input of the output end connection control circuit 30 of the controlling switch 40.
The control circuit 30 includes 89C51 single-chip microcomputers.
Pressure sensor 10 is piezoresistive pressure sensor, and the power supply circuit is lithium battery.
Last dead bolt is extend into lock box, and dead bolt can touch the piezoresistive pressure sensor in lock box,
So as to one analog voltage signal of piezoresistive pressure sensor and export, the analog voltage signal after output passes through analog-to-digital conversion
Circuit 20 is converted to data signal, and data signal disconnects by the normally closed point of the control relay of control circuit 30, and electric brake loop disconnects,
Then all electrical equipment are stopped, and reach indoor power-off fireproof purpose.In the case of being not intended to auto-power-off device work, open
Controlling switch 40, add alternative of the present utility model.
Above content is to combine the further description that specific preferred embodiment is made to the utility model, it is impossible to is recognized
Determine specific embodiment of the present utility model and be confined to these explanations.For the common skill of the utility model art
For art personnel, the other embodiment that is drawn in the case where not departing from the technical solution of the utility model should be included in this practicality
In new protection domain.
Claims (5)
- A kind of 1. auto-power-off device, it is characterised in that：Including the pressure sensor (10) being arranged in lock box, the pressure passes The output end of sensor (10) is connected by analog to digital conversion circuit (20) with the input of control circuit (30), the control circuit (30) output end connection relay, the power supply output of the power input connection power supply circuit (50) of the control circuit (30) End.
- A kind of 2. auto-power-off device as claimed in claim 1, it is characterised in that：This auto-power-off device is also opened including control Close (40), the input of the output end connection control circuit (30) of the controlling switch (40).
- A kind of 3. auto-power-off device as claimed in claim 2, it is characterised in that：The control circuit (30) includes 89C51 Single-chip microcomputer.
- A kind of 4. auto-power-off device as claimed in claim 3, it is characterised in that：The pressure sensor (10) is pressure resistance type Pressure sensor.
- A kind of 5. auto-power-off device as described in any one of Claims 1 to 4, it is characterised in that：The power supply circuit (50) For lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521200.0U CN206805222U (en) | 2017-05-11 | 2017-05-11 | A kind of auto-power-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521200.0U CN206805222U (en) | 2017-05-11 | 2017-05-11 | A kind of auto-power-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206805222U true CN206805222U (en) | 2017-12-26 |
Family
ID=60740322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720521200.0U Expired - Fee Related CN206805222U (en) | 2017-05-11 | 2017-05-11 | A kind of auto-power-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206805222U (en) |
-
2017
- 2017-05-11 CN CN201720521200.0U patent/CN206805222U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 Termination date: 20200511 |