CN206869267U - Self-shield electric iron controller - Google Patents
Self-shield electric iron controller Download PDFInfo
- Publication number
- CN206869267U CN206869267U CN201720841306.9U CN201720841306U CN206869267U CN 206869267 U CN206869267 U CN 206869267U CN 201720841306 U CN201720841306 U CN 201720841306U CN 206869267 U CN206869267 U CN 206869267U
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- CN
- China
- Prior art keywords
- circuit
- electric iron
- oxide
- control
- semiconductor
- 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
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Abstract
The utility model discloses a kind of self-shield electric iron controller, including supervisory circuit, control circuit and heater circuit；The supervisory circuit includes the vibroswitch and comparison circuit to intercouple, and vibroswitch is used to sense electric iron shaking force and produces trigger action, comparison circuit output high level or low level；The control circuit includes single-chip microcomputer, and the collection terminal of the single-chip microcomputer couples with comparison circuit, and the high and low level of collection comparison circuit output, the control terminal of the single-chip microcomputer couples with heater circuit, to heater circuit output pwm signal；The heater circuit includes triode, metal-oxide-semiconductor and heating core, and single-chip microcomputer control terminal couples with transistor base, controls triode break-make, triode control metal-oxide-semiconductor break-make, the break-make between metal-oxide-semiconductor control heating core and power supply.The self-shield electric iron can automatically cut off power supply, and sense sensitive, intelligent control.
Description
Technical field
Embodiment of the present utility model is related to a kind of self-shield electric iron controller.
Background technology
Electric iron is instrument essential in electronic production and electrical maintenance, and it is mainly used for soldered elements and led
Line.By long-term it has been observed that many people are during using electric iron, often occur forgetting to close showing for electric iron power supply
As electric iron service life on the one hand can be influenceed, and still further aspect has potential safety hazard.
Utility model content
The purpose of this utility model is to be directed to drawbacks described above of the prior art, there is provided a kind of self-shield electric iron control
Device.
To realize above-mentioned purpose of utility model, the utility model employs following technical scheme：A kind of self-shield electric iron
Controller, including supervisory circuit, control circuit and heater circuit；The supervisory circuit includes the vibroswitch and ratio to intercouple
Compared with circuit, vibroswitch is used to sense electric iron shaking force and produces trigger action, comparison circuit output high level or low level；
The control circuit includes single-chip microcomputer, and the collection terminal of the single-chip microcomputer couples with comparison circuit, and collection comparison circuit exports high and low
Level, the control terminal of the single-chip microcomputer couple with heater circuit, to heater circuit output pwm signal；The heater circuit includes three
Pole pipe, metal-oxide-semiconductor and heating core, single-chip microcomputer control terminal couple with transistor base, control triode break-make, triode control MOS
Pipe break-make, the break-make between metal-oxide-semiconductor control heating core and power supply.
In addition, the utility model also provides following attached technical scheme：
Comparison circuit includes LM393 chips, divider resistance and pull-up resistor, the positive terminal coupling partial pressure electricity of LM393 chips
Resistance, end of oppisite phase coupled vibrations switch, output end coupling pull-up resistor.
The triode of heater circuit is NPN type, and metal-oxide-semiconductor is p-type pipe, and the colelctor electrode of triode connects the grid of metal-oxide-semiconductor, transmitting
Pole is grounded, and the source electrode of metal-oxide-semiconductor connects power supply, and drain electrode connects heat generating core.
Supervisory circuit also includes power indicating circuit, and the power indicating circuit includes the first light emitting diode, first resistor
With the first electric capacity, the first light emitting diode and first resistor composition series circuit, the first electric capacity are in parallel with the series circuit.
Supervisory circuit also includes switch indicating circuit, and the switch indicating circuit includes the second light emitting diode being serially connected
With the 5th resistance, the switch indicating circuit is coupling between power supply and comparison circuit output end.
Compared to prior art, the advantage of self-shield electric iron controller of the present utility model is：It includes monitoring electricity
Road, control circuit and heater circuit, supervisory circuit monitor whether electric iron is in use state, comparison circuit by vibroswitch
High and low level is exported to single-chip microcomputer, single-chip microcomputer controls the break-make of triode by output pwm signal, and triode controls metal-oxide-semiconductor again
Break-make, metal-oxide-semiconductor controls the break-make of heating core and power supply, can adjust the electric iron heat time again, so as to realize that regulation electricity irons
Iron temperature.The self-shield electric iron can automatically cut off power supply, and sense sensitive, intelligent control.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, embodiment or correlation technique will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, it is new that drawings in the following description merely relate to this practicality
Some embodiments of type, are not limitation of the utility model.
Fig. 1 is the circuit theory diagrams of heater circuit.
Fig. 2 is the circuit theory diagrams of supervisory circuit.
Embodiment
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
Body embodiment makees further nonrestrictive detailed description to technical solutions of the utility model.
The self-shield electric iron controller of the present embodiment includes supervisory circuit, control circuit and heater circuit.Supervisory circuit
For monitoring the seismaesthesia of electric iron, reflect whether electric iron is in use state from side.Heater circuit is used to control power supply
Break-make, path then continuous heating, breaking then natural cooling.Control circuit includes single-chip microcomputer, is coupling in supervisory circuit and heating
Between circuit, heater circuit is adjusted by output pwm signal.
See Fig. 1, heater circuit includes NPN type triode Q4, p-type metal-oxide-semiconductor Q2 and heating core T12.The base stage of triode connects
Single-chip microcomputer control terminal T12_CTRL, colelctor electrode connect the grid of metal-oxide-semiconductor, grounded emitter.The source electrode of metal-oxide-semiconductor connects power supply, and drain electrode connects
Heat generating core.In normal work, single-chip microcomputer control terminal T12_CTRL output pwm signal regulation heating cores, it is specifically, works as single-chip microcomputer
When control terminal output is high level, triode Q4 conductings, now the grid of metal-oxide-semiconductor is low level, and the UGS of metal-oxide-semiconductor is negative voltage,
Metal-oxide-semiconductor turns on, and heat generating core, which is powered, to heat up；When the output of single-chip microcomputer control terminal be low level, triode ends, now metal-oxide-semiconductor
Grid is high level, and the UGS of metal-oxide-semiconductor is that voltage is 0, and metal-oxide-semiconductor is substantially at cut-off state, the short electricity cooling of heat generating core.Single-chip microcomputer
Adjust PWM dutycycle, it is possible to the heat time of regulation heating core, thus adjust electric iron temperature and reach setting value.
See Fig. 2, supervisory circuit includes power indicating circuit, comparison circuit, vibroswitch K1 and switch indicating circuit.
Power indicating circuit includes the first light emitting diode D1, first resistor R1 and the first electric capacity C1, the first light emitting diode D1 and the
One resistance R1 forms series circuit, and the first electric capacity C1 is in parallel with the series circuit.First light-emitting diodes of the power indicating circuit
Pipe D1 can realize slow effect of going out.Comparison circuit includes LM393 chips U1, divider resistance R3 and pull-up resistor R4, LM393 chip
Positive terminal coupling divider resistance after access power supply, end of oppisite phase coupled vibrations switch, output end coupling pull-up resistor.Vibroswitch
Electric iron shaking force can be sensed and produce trigger action.Switch indicating circuit include the second light emitting diode D2 for being serially connected and
5th resistance R5, the switch indicating circuit are coupling between power supply and LM393 chip outputs.
When using electric iron, due to the vibrations of hand so that vibroswitch disconnects, and the end of oppisite phase of LM393 chips is voltage
VCC, and in-phase end voltage is less than VCC after divider resistance partial pressure, so LM393 chip outputs output low level, second
Light emitting diode brightens, and single-chip microcomputer collects amplifier signal DO signals when being low level, normal output pwm signal, nonintervention plus
The work of heater circuit.When electric iron is powered but (specifically can be by single-chip microcomputer timing) be not used for a long time, vibroswitch short circuit,
The end of oppisite phase of LM393 chips is that voltage is 0, and in-phase end voltage after divider resistance partial pressure still greater than 0, so LM393 cores
Piece output end exports high level, and the second light emitting diode does not work, and single-chip microcomputer collects amplifier signal DO signals and is continuously high level
When, control instruction is sent, control terminal T12_CTRL outputs continue low level, the connection of force disconnect heat generating core and power supply.
It is pointed out that above-mentioned preferred embodiment is only to illustrate technical concepts and features of the present utility model, its purpose
It is to allow person skilled in the art to understand content of the present utility model and implements according to this, this reality can not be limited with this
With new protection domain.All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in this reality
Within new protection domain.
Claims (5)
- A kind of 1. self-shield electric iron controller, it is characterised in that：Including supervisory circuit, control circuit and heater circuit；The supervisory circuit includes the vibroswitch and comparison circuit to intercouple, and vibroswitch is used to sense electric iron shaking force And trigger action is produced, comparison circuit output high level or low level；The control circuit includes single-chip microcomputer, and the collection terminal of the single-chip microcomputer couples with comparison circuit, collection comparison circuit output High and low level, the control terminal of the single-chip microcomputer couple with heater circuit, to heater circuit output pwm signal；The heater circuit includes triode, metal-oxide-semiconductor and heating core, and single-chip microcomputer control terminal couples with transistor base, control three Pole pipe break-make, triode control metal-oxide-semiconductor break-make, the break-make between metal-oxide-semiconductor control heating core and power supply.
- 2. self-shield electric iron controller according to claim 1, it is characterised in that：The comparison circuit includes LM393 Chip, divider resistance and pull-up resistor, the positive terminal coupling divider resistance of LM393 chips, end of oppisite phase coupled vibrations switch, output End coupling pull-up resistor.
- 3. self-shield electric iron controller according to claim 1, it is characterised in that：The triode of the heater circuit is NPN type, metal-oxide-semiconductor are p-type pipe, and the colelctor electrode of triode connects the grid of metal-oxide-semiconductor, grounded emitter, and the source electrode of metal-oxide-semiconductor connects power supply, Drain electrode connects heat generating core.
- 4. self-shield electric iron controller according to claim 1, it is characterised in that：The supervisory circuit also includes power supply Indicating circuit, the power indicating circuit include the first light emitting diode, first resistor and the first electric capacity, the first light emitting diode and First resistor forms series circuit, and the first electric capacity is in parallel with the series circuit.
- 5. self-shield electric iron controller according to claim 1, it is characterised in that：The supervisory circuit also includes switch Indicating circuit, the switch indicating circuit include the second light emitting diode and the 5th resistance being serially connected, the switch indicating circuit It is coupling between power supply and comparison circuit output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841306.9U CN206869267U (en) | 2017-07-12 | 2017-07-12 | Self-shield electric iron controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841306.9U CN206869267U (en) | 2017-07-12 | 2017-07-12 | Self-shield electric iron controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206869267U true CN206869267U (en) | 2018-01-12 |
Family
ID=61330385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720841306.9U Expired - Fee Related CN206869267U (en) | 2017-07-12 | 2017-07-12 | Self-shield electric iron controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206869267U (en) |
-
2017
- 2017-07-12 CN CN201720841306.9U patent/CN206869267U/en not_active Expired - Fee Related
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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: 20180112 Termination date: 20180712 |