CN205004727U - A infrared human response auto -power -off device for preventing oodle maker rolls hand - Google Patents
A infrared human response auto -power -off device for preventing oodle maker rolls hand Download PDFInfo
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- CN205004727U CN205004727U CN201520784714.6U CN201520784714U CN205004727U CN 205004727 U CN205004727 U CN 205004727U CN 201520784714 U CN201520784714 U CN 201520784714U CN 205004727 U CN205004727 U CN 205004727U
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Abstract
The utility model discloses an infrared human response auto -power -off device for preventing oodle maker rolls hand. Include: detect the opto -coupler, its positive pole meets positive, and the negative pole connects the base of control triode through collecting electrode, the projecting pole power connection negative pole of resistance, first detection triode, collecting electrode through resistance, the base of first detection triode connects the second to detect the projecting pole of triode, the base of second detection triode connects the output of infrared induction module, first outage triode, its collecting electrode connect the base of second outage triode, and the projecting pole of second outage triode connects the base of third outage triode, the collecting electrode of third outage triode connects the positive pole of carrying out the opto -coupler through resistance, carry out the opto -coupler, its negative pole power connection negative pole, collecting electrode meet positive, and the projecting pole connects the base that starts the triode through resistance, start the triode, its collecting electrode connects the ultor of bidirectional thyristor, projecting pole power connection negative pole, the control electrode of silicon controlled rectifier is through resistance power connection negative pole.
Description
Technical field
The utility model relates to protective device, particularly relates to its infrared human body induction auto-power-off device.
Background technology
The charged mechanical device of the motor types such as electric dough-sheeter in use, due to the carelessness of operating personnel, usually can roll the personal injury accidents such as hand, the personal safety of serious threat operating personnel.How installing protector to prevent and form personal injury to operating personnel, is the technical issues that need to address in prior art.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of infrared human body induction auto-power-off device rolling hand for anti-oodle maker.
For solving the problems of the technologies described above, the technical solution of the utility model is: comprise testing circuit, warning circuit and executive circuit, described testing circuit comprises: detect optocoupler, its anode connects positive source, negative electrode connects power cathode through resistance, the collector electrode of the first detection transistor, emitter, and collector electrode connects the base stage controlling triode through resistance; First detection transistor, its base stage connects the emitter of the second detection transistor; Second detection transistor, its collector electrode connects positive source through resistance, and base stage connects the output of infrared induction module; Control triode, its emitter connects positive source, and collector electrode exports control voltage; Described executive circuit comprises: the first power-off triode, and its emitter connects the control voltage that described testing circuit exports, base stage connecting resistance bleeder circuit, and collector electrode connects power cathode through resistance; Second power-off triode, its base stage connects the collector electrode of described first power-off triode, and emitter connects the base stage of the 3rd power-off triode, and collector electrode connects power cathode through resistance; 3rd power-off triode, its emitter connects positive source through resistance, and collector electrode connects the anode performing optocoupler through resistance; Perform optocoupler, its negative electrode connects power cathode, and collector electrode connects positive source, and emitter connects the base stage starting triode through resistance; Start triode, its collector electrode connects the second plate of bidirectional triode thyristor, and emitter connects power cathode, and described silicon controlled controls pole and connects power cathode through resistance.
The multivibrator that described warning circuit is made up of 555 circuit forms, and its working power connects the control voltage that described testing circuit exports, and exports and is connected to LED light and alarm buzzer; The power supply of described execution optocoupler output and input adopts independent power supply respectively.
The beneficial effects of the utility model are, when infrared induction module detects human body such as hand, start detection optocoupler, controls triode ON, export control voltage, and then making warning circuit work, LED light is flashed and alarm buzzer sounding, turns off simultaneously and performs optocoupler, and then make bidirectional triode thyristor voltage out of hand and turn off, motor is stall because of dead electricity, prevents human body to be involved in, rolls the injury accidents such as hand, ensure that the personal safety of operating personnel.Adopt and detect the isolation that optocoupler achieves testing circuit and warning circuit, executive circuit, adopt and perform the isolation that optocoupler achieves light current and forceful electric power, decrease mutual interference, circuit working is stablized, reliably.
Accompanying drawing explanation
Accompanying drawing is the circuit diagram of the infrared human body induction auto-power-off device rolling hand for anti-oodle maker.
In figure: J1, J2-attaching plug; J3-triggering voltage plug; J4-ac power plug; R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16-resistance; C1, C2, C3-electric capacity; U1-detects optocoupler; U2-infrared induction module; U3-555 circuit; U4-performs optocoupler; U5-bidirectional triode thyristor; Q1-controls triode; Q2-starts triode; Q3-power-off triode I; Q4-power-off triode II; Q5-power-off triode III; Q6-detection transistor II; Q7-detection transistor I; M-motor; BUZ1-alarm buzzer; Uk-control voltage; D1-LED indicator light.
Embodiment
As shown in drawings, testing circuit comprises: detect optocoupler U1, its anode connects positive source, and negative electrode connects power cathode through the collector electrode of resistance, detection transistor IQ7, emitter, and collector electrode connects the base stage controlling triode Q1 through resistance; Detection transistor IQ7, its base stage connects the emitter of detection transistor IIQ6; Detection transistor IIQ6, its collector electrode connects positive source through resistance, and base stage connects the output of infrared induction module U2; Control triode Q1, its emitter connects positive source, and collector electrode exports control voltage Uk; When infrared induction module U2 exports high level, detection transistor IQ7, detection transistor IIQ6 conducting, detect optocoupler U1 to start, control triode Q1 conducting, collector electrode exports control voltage Uk and becomes high potential, for warning circuit provides working power, make the glittering and alarm buzzer BUZ1 sounding of LED light D1.Control voltage Uk is simultaneously also for executive circuit provides working power.
Executive circuit comprises: power-off triode IQ3, and its emitter meets the control voltage Uk that testing circuit exports, base stage connecting resistance bleeder circuit, and collector electrode connects power cathode through resistance; Power-off triode IIQ4, its base stage connects the collector electrode of described power-off triode IQ3, and emitter connects the base stage of power-off triode IIIQ5, and collector electrode connects power cathode through resistance; Power-off triode IIIQ5, its emitter connects positive source through resistance, and collector electrode connects the anode performing optocoupler U4 through resistance; Perform optocoupler U4, its negative electrode connects power cathode, collector contact energy source positive pole, and emitter connects the base stage starting triode Q2 through resistance; Start triode Q2, its collector electrode connects the second plate of bidirectional triode thyristor U5, and emitter contact energy source negative pole, the control pole of bidirectional triode thyristor U5 is through Ohmic contact energy source negative pole.When control voltage Uk becomes high potential, power-off triode IQ3 conducting, power-off triode IIQ4, power-off triode IIIQ5 end, perform optocoupler U4 to turn off, start triode Q2 cut-off, bidirectional triode thyristor U5 turns off, the stall of motor M dead electricity because of voltage out of hand.
When infrared induction module U2 detects human body such as hand, export control voltage Uk, and then make warning circuit work, LED light D1 flashes and alarm buzzer BUZ1 sounding; Turn off simultaneously and perform optocoupler U4, motor M stall because of dead electricity; If now human body is removed, then infrared induction module U2 can't detect human body, infrared induction module U2 keeps output low level after 15 seconds, control voltage Uk becomes low level, warning circuit and executive circuit quit work, bidirectional triode thyristor U5 conducting again, motor M is rotated further, and machine is reworked.
Claims (3)
1. one kind is rolled the infrared human body induction auto-power-off device of hand for anti-oodle maker, comprise testing circuit, warning circuit and executive circuit, it is characterized in that, described testing circuit comprises: detect optocoupler, its anode connects positive source, negative electrode connects power cathode through resistance, the collector electrode of the first detection transistor, emitter, and collector electrode connects the base stage controlling triode through resistance; First detection transistor, its base stage connects the emitter of the second detection transistor; Second detection transistor, its collector electrode connects positive source through resistance, and base stage connects the output of infrared induction module; Control triode, its emitter connects positive source, and collector electrode exports control voltage; Described executive circuit comprises: the first power-off triode, and its emitter connects the control voltage that described testing circuit exports, base stage connecting resistance bleeder circuit, and collector electrode connects power cathode through resistance; Second power-off triode, its base stage connects the collector electrode of described first power-off triode, and emitter connects the base stage of the 3rd power-off triode, and collector electrode connects power cathode through resistance; 3rd power-off triode, its emitter connects positive source through resistance, and collector electrode connects the anode performing optocoupler through resistance; Perform optocoupler, its negative electrode connects power cathode, and collector electrode connects positive source, and emitter connects the base stage starting triode through resistance; Start triode, its collector electrode connects the second plate of bidirectional triode thyristor, and emitter connects power cathode, and described silicon controlled controls pole and connects power cathode through resistance.
2. auto-power-off device according to claim 1, is characterized in that, the multivibrator that described warning circuit is made up of 555 circuit forms, and its working power connects the control voltage that described testing circuit exports, and exports and is connected to LED light and alarm buzzer.
3. auto-power-off device according to claim 1, is characterized in that, the power supply of described execution optocoupler output and input adopts independent power supply respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784714.6U CN205004727U (en) | 2015-09-30 | 2015-09-30 | A infrared human response auto -power -off device for preventing oodle maker rolls hand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784714.6U CN205004727U (en) | 2015-09-30 | 2015-09-30 | A infrared human response auto -power -off device for preventing oodle maker rolls hand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004727U true CN205004727U (en) | 2016-01-27 |
Family
ID=55161599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520784714.6U Expired - Fee Related CN205004727U (en) | 2015-09-30 | 2015-09-30 | A infrared human response auto -power -off device for preventing oodle maker rolls hand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004727U (en) |
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2015
- 2015-09-30 CN CN201520784714.6U patent/CN205004727U/en not_active Expired - Fee Related
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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: 20160127 Termination date: 20170930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |