CN210038488U - Touch type electric iron control circuit - Google Patents
Touch type electric iron control circuit Download PDFInfo
- Publication number
- CN210038488U CN210038488U CN201920875923.XU CN201920875923U CN210038488U CN 210038488 U CN210038488 U CN 210038488U CN 201920875923 U CN201920875923 U CN 201920875923U CN 210038488 U CN210038488 U CN 210038488U
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- electric iron
- voltage
- touch
- module
- power supply
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 55
- 230000009467 reduction Effects 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims 2
- 230000006698 induction Effects 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a touch electric iron control circuit relates to capacitanc response touch switch, has solved to dabbing the electric iron of button, and the button is dabbed in too frequent touch, can lead to its metal shrapnel fatigue to lose elasticity, and makes the problem that dabs the switch inefficacy, and the technical scheme main points are: the method comprises the following steps: the power supply voltage reduction module is coupled to the mains supply and used for reducing voltage and current of the accessed mains supply; the touch metal copper sheet is arranged at the lower part of a handle of the electric iron; the touch induction module is provided with one port coupled to the power supply voltage reduction module to be powered by the power supply voltage reduction module which outputs the A-value power supply voltage, and the other port is used for detecting the voltage variation of a branch where the touch metal copper sheet is located to determine whether human body induction exists or not to drive the electric iron to work; the indication module is used for indicating the working state of the electric iron and is powered by the power supply voltage reduction module which outputs the power supply voltage with the value A; the utility model discloses a touch electric iron control circuit, it is convenient to control electric iron, and the durability is good.
Description
Technical Field
The utility model relates to a capacitanc response touch switch, in particular to touch electric iron control circuit.
Background
An electric iron is a cleaning appliance for ironing clothes by using electric heat. Is one of the essential electrical appliances of modern families, is a tool for leveling clothes and cloth, and has the power of 300-1000W.
At present, the touch buttons or pure temperature controller control is used in the electric iron market, and the metal elastic sheet of the electric iron loses elasticity due to fatigue when the touch buttons are touched too frequently, so that the touch switch fails; the temperature controller can not be controlled only by the temperature of the electric iron according to the actual use convenience, so that the improvement space is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a touch electric iron control circuit, it is convenient to control electric iron, and the durability is good.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a touch-type electric iron control circuit comprising:
the power supply voltage reduction module is coupled to the mains supply and used for reducing voltage and current to output A-value power supply voltage;
the touch metal copper sheet is arranged at the lower part of a handle of the electric iron and is touched by a user;
the touch induction module is coupled with the power supply voltage reduction module through one port to be powered by the power supply voltage reduction module which outputs the A-value power supply voltage, and the other port is used for detecting the voltage variation of a branch where the touch metal copper sheet is located to determine whether human body induction exists or not to drive the electric iron to work;
and the indicating module is coupled with the touch sensing module and used for indicating the working state of the electric iron, and the indicating module is powered by the power supply voltage reducing module which outputs the A value power supply voltage.
By adopting the technical scheme, the power supply voltage reduction module is used for reducing the voltage of the accessed commercial power so as to provide proper voltage for the touch sensing module; install the touch metal copper sheet cooperation touch-sensitive module in the handle lower part of electric iron, in case the human body touches touch metal copper sheet, then another port of touch-sensitive module detectable promptly touches the voltage variation who touches metal copper sheet place branch road and then touch-sensitive module starts electric iron and opens work, controls electric iron conveniently, and the durability is good.
The utility model discloses further set up to: the indicating module is used for indicating light and is arranged on the upper part of the handle of the electric iron.
By adopting the technical scheme, the light indication gives visual indication, and compared with the sound indication, the noise pollution caused by sound is avoided; and the indicating module is arranged at the upper part of the electric iron, so that the attention of a user touching the metal copper sheet by fingers can be attracted.
The utility model discloses further set up to: the indicating module comprises a double-color indicating lamp, and the double-color indicating lamp comprises a first indicating lamp and a second indicating lamp;
when the electric iron works, the first indicator light does not work, and the second indicator light works; when the electric iron does not work, the first indicator light works, and the second indicator light does not work.
Through adopting above-mentioned technical scheme, double-colored pilot lamp makes self color change compare in ordinary pilot lamp indicating effect good because of the switching in different return circuits.
The utility model discloses further set up to: the first indicator light and the second indicator light are both light emitting diodes;
a branch where the first indicator lamp is located is connected with a first protection part for limiting current in series;
and a branch where the second indicator lamp is located is connected in series with a second protection part for limiting current.
By adopting the technical scheme, compared with a common illuminating lamp, the light-emitting diode is energy-saving and environment-friendly; because the current allowed to flow through the light-emitting diode is relatively small, the first protection part and the second protection part are used for reducing voltage, and the problem that components are burnt due to the fact that the current flowing through the light-emitting diode is too large is further avoided.
The utility model discloses further set up to: the power supply voltage reduction module comprises a resistance-capacitance voltage reduction part, a rectification part, a current-limiting voltage reduction part and a voltage stabilizing part, wherein the resistance-capacitance voltage reduction part is coupled to a mains supply and used for primarily reducing voltage to output a primarily reduced voltage signal, the rectification part is coupled to the resistance-capacitance voltage reduction part and used for receiving the primarily reduced voltage signal and outputting a direct current signal, the current-limiting voltage reduction part is coupled to the rectification part and used for receiving the direct current signal and outputting a current-limiting signal, and the.
By adopting the technical scheme, the resistance-capacitance voltage reduction part for preliminary voltage reduction, the rectification part for rectification, the current-limiting voltage reduction part for current limiting and the voltage stabilization part for voltage stabilization realize that the accessed commercial power is processed to meet the power supply requirement of the touch sensing module.
The utility model discloses further set up to: the rectifying part comprises a first rectifying diode and a second rectifying diode; the current-limiting voltage-reducing part comprises four voltage-reducing resistors; the voltage stabilization part includes a zener diode.
By adopting the technical scheme, the rectifying part consisting of the first rectifying diode and the second rectifying diode belongs to a full-wave rectifying circuit, and the utilization rate of the transformer is higher than that of a half-wave rectifying transformer in comparison with that of a half-wave rectifying transformer; the current-limiting voltage stabilizing part comprising four voltage-reducing resistors and the voltage stabilizing part comprising a voltage stabilizing diode are relatively common circuits, and the connection is simple.
The utility model discloses further set up to: the touch sensing module emits 450KHz frequency from one end of the chip, and generates voltage at a PA0 port of the singlechip through first capacitive coupling and second capacitive filtering; when a human body touches a metal copper sheet, the voltage of the PA0 port changes.
By adopting the technical scheme, the chip with the frequency of 450KHz is printed out to provide reference voltage for the touch sensing module, so that the reference voltage can be conveniently compared with the voltage generated when a human body touches the metal copper sheet.
To sum up, the utility model discloses following beneficial effect has:
the power supply voltage reduction module is used for reducing the voltage of the accessed commercial power so as to provide proper voltage for the touch sensing module; install the touch metal copper sheet cooperation touch-sensitive module in the handle lower part of electric iron, in case the human body touches touch metal copper sheet, then another port of touch-sensitive module detectable promptly touches the voltage variation who touches metal copper sheet place branch road and then touch-sensitive module starts electric iron and opens work, controls electric iron conveniently, and the durability is good.
Drawings
Fig. 1 is a schematic circuit diagram of a power supply voltage reduction module in the touch type electric iron control circuit of the present invention;
fig. 2 is a schematic circuit diagram of a touch sensing module in the control circuit of the touch electric iron of the present invention;
fig. 3 is a schematic circuit diagram of an indication module in the control circuit of the touch electric iron of the present invention.
In the figure, 1, a power supply voltage reduction module; 11. a resistance-capacitance voltage reducing part; 12. a rectifying section; 13. a current limiting and voltage reducing part; 14. a voltage stabilizing part; 2. a touch metal copper sheet; 3. a touch sensing module; 4. an indication module; 41. a two-color indicator light; 411. a first indicator light; 412. a first protection portion; 413. a second indicator light; 414. a second protection part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-3.
Referring to fig. 1, fig. 2, the utility model discloses a touch electric iron control circuit, including coupling in the commercial power to the commercial power of access give step-down and fall the power step-down module 1 with output A value mains voltage, install touch metal copper sheet 2 that the handle lower part of electric iron supplied the touch of user, a port is coupled in power step-down module 1 and is supplied power and another port detects touch metal copper sheet 2 and determine whether there is human response in order to drive electric iron work's touch-sensitive module 3 of touch-sensitive module 3 branch road with the power step-down module 1 of output A value mains voltage, coupling is used for instructing electric iron's operating condition's indicating module 4 in touch-sensitive module 3, wherein indicating module 4 is supplied power by output A value mains voltage's power step-down module 1, the A value is 5V here.
Referring to fig. 1, the power voltage step-down module 1 includes a resistance-capacitance voltage step-down part 11 coupled to the utility power for primarily stepping down to output a primarily stepped-down signal, a rectifying part 12 coupled to the resistance-capacitance voltage step-down part 11 for receiving the primarily stepped-down signal and outputting a dc signal, a current limiting voltage step-down part 13 coupled to the rectifying part 12 for receiving the dc signal and outputting a current limiting signal, and a voltage stabilizing part 14 coupled to the current limiting voltage step-down part 13 for stabilizing voltage.
The resistance-capacitance voltage reducing part 11 comprises a resistor R5, a resistor R14, a resistor R15 and a capacitor C5, wherein the resistor R5 is connected with the capacitor C5 in series, the resistor R14 is connected with the resistor R15 in series, and the resistor R14 and the resistor R15 which are connected in series are connected with two ends of the capacitor C5 in parallel. The rectifying section 12 includes a first rectifying diode D1, a second rectifying diode D2, and a capacitor CE 1; the current-limiting voltage-reducing part 13 comprises four voltage-reducing resistors, namely a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12 and a resistor R13, wherein the resistor R6 is connected with a resistor R10 in parallel, the resistor R7 is connected with a resistor R11 in parallel, the resistor R8 is connected with a resistor R12 in parallel, and the resistor R9 is connected with a resistor R13 in parallel. The voltage regulator part 14 includes a zener diode DZ3 and a capacitor CE 2.
Referring to fig. 2, the touch sensing module 3 emits a 450KHz frequency from one end of the chip, and generates a voltage at a PA0 port of the single chip microcomputer through capacitive coupling of the capacitor C3 and filtering of the capacitor C4, and when a human body touches the touch metal copper sheet 2, the voltage at the PA0 port changes. The two ends of the power supply voltage reduction module 1 are subjected to resistance-capacitance voltage reduction rectification, resistance voltage reduction and voltage regulator tubes to provide working voltage for the single chip microcomputer, wherein the voltage is +5.1V, and the single chip microcomputer is AT89C 51.
Referring to fig. 3, the indication module 4 is a light indication and is installed on the upper portion of the handle of the electric iron. The indicating module 4 comprises a two-color indicator lamp 41, the two-color indicator lamp 41 comprising a first indicator lamp 411 and a second indicator lamp 413; when the electric iron is operated, the first indicator light 411 does not work, and the second indicator light 413 works; when the electric iron is not operated, the first indicator lamp 411 is operated, and the second indicator lamp 413 is not operated. The first indicator light 411 and the second indicator light 413 are a light emitting diode D1 and a light emitting diode D2 respectively; a first protection part 412 for limiting current is connected in series with a branch where the first indicator lamp 411 is located; a branch where the second indicator light 413 is located is connected in series with a second protection part 414 for limiting current. The first protection portion 412 is a resistor R1, and the second protection portion 414 is a resistor R2.
Referring to fig. 3, the indication module 4 further includes a first trigger part coupled to the light emitting diode D1, and a second trigger part coupled to the light emitting diode D2. The first flip-flop includes a transistor Q1 and a resistor R3, and the first flip-flop includes a transistor Q2 and a resistor R4. The transistor Q1 and the transistor Q2 are NPN transistors, and have a model number of 2SC3998, and a turn-on threshold of 0.7V. The types of the light emitting diode D1 and the light emitting diode D2 are ZX-35288W42-1, the resistance ranges of the resistor R1 and the resistor R2 are 330-2000 ohms, and the values of the resistors are 1000 ohms in the embodiment.
Referring to fig. 3, a pin 7 of the single chip microcomputer is connected with one end of an electromagnetic relay KA1, and the other end of the electromagnetic relay KA1 is connected with the ground. One end of the resistor R2 is respectively connected with one end of a normally open contact KA1-1 of the electromagnetic relay KA1, one end of the resistor R1 and the power supply VCC, and the other end of the resistor R2 is respectively connected with a collector of the triode Q1, a cathode of the light-emitting diode D1 and an anode of the light-emitting diode D2; the emitter of the transistor Q1 is connected to ground GND. One end of the resistor R1 is respectively connected with the power supply VCC, the other end of the resistor R2 and one end of the normally open contact KA1-1 of the electromagnetic relay KA 1. The other end of the resistor R1 is connected to one end of the resistor R3 and the collector of the transistor Q2, respectively. Wherein the light emitting diode D1 emits green light and the light emitting diode D2 emits red light.
One end of a resistor R4 is connected with the other end of a normally-open contact KA1-1 of the electromagnetic relay KA1, the other end of the resistor R4 is connected with a base electrode of a triode Q2, an emitting electrode of a triode Q2 is connected with the ground GND, and a collector electrode of a triode Q2 is respectively connected with an anode of a light-emitting diode D1, a cathode of the light-emitting diode D2, the other end of a resistor R1 and the other end of the resistor R3. The light emitting diode D1 emits green light, the light emitting diode D2 emits red light, and the light emitting diode D1 and the light emitting diode D2 indicate the working state of the electric iron due to the switching of different loops.
The working principle is as follows: the 450KHz frequency received by the first pin of the single chip microcomputer is utilized, voltage is superposed through the capacitor C3 and the diode component D6, the capacitor C4 and the resistor R16 form a discharge circuit, when no human body senses the voltage, a high level is generated at a port, namely the fourth pin of the single chip microcomputer, if human body senses the voltage, a human body is connected with the touch sensing copper sheet 2 to pull down the voltage of the port, so that a voltage variation can be generated at the moment, and the fact that human body sensing exists can be determined after the certain variation is detected by the PA0 port; after the human body induction is determined, the port of the single chip microcomputer can generate a corresponding signal to control the electric iron to heat, and at the moment, the light emitting diode D2 emits red light, and the light emitting diode D1 does not work.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above description of the embodiments is only used to help understanding the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art should also appreciate that other modifications and substitutions can be made without departing from the scope of the present disclosure.
Claims (7)
1. A touch electric iron control circuit is characterized in that: the method comprises the following steps:
the power supply voltage reduction module (1) is coupled to a mains supply and used for reducing voltage and current of the accessed mains supply so as to output an A value power supply voltage;
the touch metal copper sheet (2) is arranged at the lower part of a handle of the electric iron and is touched by a user;
the touch sensing module (3) is provided with one port coupled to the power voltage reduction module (1) so as to be powered by the power voltage reduction module (1) outputting the power voltage with the value A, and the other port is used for detecting the voltage variation of a branch where the touch metal copper sheet (2) is located so as to determine whether human body sensing exists or not to drive the electric iron to work;
and the indicating module (4) is coupled with the touch sensing module (3) and used for indicating the working state of the electric iron, and is powered by the power supply voltage reducing module (1) which outputs A value power supply voltage.
2. The touch type electric iron control circuit according to claim 1, wherein: the indicating module (4) is used for indicating light and is arranged on the upper part of the handle of the electric iron.
3. The touch type electric iron control circuit according to claim 1, wherein: the indicating module (4) comprises a two-color indicating lamp (41), the two-color indicating lamp (41) comprises a first indicating lamp (411) and a second indicating lamp (413);
when the electric iron works, the first indicator lamp (411) does not work, and the second indicator lamp (413) works; when the electric iron does not work, the first indicator lamp (411) works, and the second indicator lamp (413) does not work.
4. The touch type electric iron control circuit according to claim 3, wherein: the first indicator light (411) and the second indicator light (413) are both light emitting diodes;
a first protection part (412) for limiting current is connected in series to a branch where the first indicator lamp (411) is located;
and a branch where the second indicator light (413) is located is connected with a second protection part (414) for limiting current in series.
5. The touch type electric iron control circuit according to claim 1, wherein: the power supply voltage reduction module (1) comprises a resistance-capacitance voltage reduction part (11) coupled to a mains supply and used for primarily reducing voltage to output a primarily reduced voltage signal, a rectification part (12) coupled to the resistance-capacitance voltage reduction part (11) and used for receiving the primarily reduced voltage signal and outputting a direct current signal, a current-limiting voltage reduction part (13) coupled to the rectification part (12) and used for receiving the direct current signal and outputting a current-limiting signal, and a voltage stabilization part (14) coupled to the current-limiting voltage reduction part (13) and used for stabilizing voltage.
6. The touch type electric iron control circuit according to claim 5, wherein: the rectifying part (12) comprises a first rectifying diode and a second rectifying diode; the current-limiting voltage-reducing part (13) comprises four voltage-reducing resistors; the voltage regulation part (14) comprises a voltage regulation diode.
7. The touch type electric iron control circuit according to claim 1, wherein: the touch sensing module (3) emits 450KHz frequency from one end of the chip, and generates voltage at a PA0 port of the singlechip through first capacitive coupling and second capacitive filtering; when a human body touches a metal copper sheet, the voltage of the PA0 port changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920875923.XU CN210038488U (en) | 2019-06-11 | 2019-06-11 | Touch type electric iron control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920875923.XU CN210038488U (en) | 2019-06-11 | 2019-06-11 | Touch type electric iron control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210038488U true CN210038488U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920875923.XU Active CN210038488U (en) | 2019-06-11 | 2019-06-11 | Touch type electric iron control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210038488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736004A (en) * | 2020-07-21 | 2020-10-02 | 追创科技(苏州)有限公司 | Alternating voltage detection circuit and electronic device |
-
2019
- 2019-06-11 CN CN201920875923.XU patent/CN210038488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736004A (en) * | 2020-07-21 | 2020-10-02 | 追创科技(苏州)有限公司 | Alternating voltage detection circuit and electronic device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 556, mayoral Road, Cixi, Ningbo, Zhejiang Patentee after: Ningbo Huanhai Intelligent Electrical Appliance Co.,Ltd. Address before: No. 556, mayoral Road, Cixi, Ningbo, Zhejiang Patentee before: NINGBO HUANHAI ELECTRIC APPLIANCES Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231201 Address after: 315300 No. 556 Changchi Road, Gutang Street, Cixi City, Ningbo City, Zhejiang Province Patentee after: Ningbo Xingding Electrical Appliance Co.,Ltd. Address before: 556 Changchi Road, Cixi, Ningbo, Zhejiang 315300 Patentee before: Ningbo Huanhai Intelligent Electrical Appliance Co.,Ltd. |
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| TR01 | Transfer of patent right |