CN111945403A - Automatic mode switching garment steamer control circuit and garment steamer with same - Google Patents
Automatic mode switching garment steamer control circuit and garment steamer with same Download PDFInfo
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- CN111945403A CN111945403A CN202010830796.9A CN202010830796A CN111945403A CN 111945403 A CN111945403 A CN 111945403A CN 202010830796 A CN202010830796 A CN 202010830796A CN 111945403 A CN111945403 A CN 111945403A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam
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Abstract
The invention discloses a control circuit of a garment steamer capable of automatically switching modes and a garment steamer with the control circuit. Thus, when the garment steamer is connected to a high voltage (e.g. 220V), heating is performed by the first heating load; and when the garment steamer is connected to a low voltage (e.g. 120V), by automatically incorporating a second heating load, it heats up with the first heating load. Thus, the voltage difference of different countries is self-adapted, so that the garment steamer can be used across countries. The heating requirements under various voltage environments can be met, so that an ideal using effect is achieved, and the use by a user is facilitated.
Description
Technical Field
The invention relates to the technical field of garment steamer, in particular to an automatic mode switching garment steamer control circuit and a garment steamer with the same.
Background
The garment steamer can be used in clothing exclusive shops, hotels, families and the like all the time, and can level and smooth clothes. The working principle of the clothes drying machine is that the heating pipe is heated to generate steam, the steam is continuously contacted with clothes, and the clothes are leveled and smooth through pulling, pressing and other actions. When the clothes hanger is used, high-pressure steam can be sprayed out only by adding water and electrifying for 1 minute, and the high-pressure steam is sprayed to the wrinkle part of the clothes, so that the clothes are flat and smooth, an ironing board is not needed, and the high-temperature steam has the cleaning and disinfecting effects.
Because the garment steamer belongs to household appliances, when in use, the garment steamer needs to be connected to mains supply alternating current through a plug so as to supply power to the heating pipe and the water pump in the garment steamer through the mains supply alternating current. Because the supply voltages of the mains supply alternating current in various countries such as China, English, China and the like are different, the heating tube (for example, a 120V heating tube) with relatively low voltage can be burnt out when the heating tube is used at high voltage (for example, 220V), and the garment steamer cannot be used across countries.
In the prior art, one of the solutions is to connect two heating pipes in parallel, one of the heating pipes corresponds to a high-voltage alternating current of 220V, and the other heating pipe corresponds to a relatively low-voltage alternating current of 120V, and when the heating pipe is used, the heating pipe is selectively used through a manual switch, but the heating pipe is also burnt out due to misoperation of a user in the manner. In another solution, two 220V heating tubes are connected in parallel or two 120V heating tubes are connected in series, when the heating device is used, one of the two heating tubes is switched on or the two heating tubes are switched on simultaneously in a manual switch selection mode, and the scheme also causes misoperation to an unfamiliar user, so that an ideal using effect cannot be achieved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present invention to provide an automatic mode switching garment steamer control circuit and garment steamer having the same.
In one aspect, to achieve the above objects, an automatic mode switching garment steamer control circuit according to an embodiment of the invention comprises:
the two ends of the first heating load are respectively connected with the two ends of the input power supply;
a second heating load, one end of which is connected with one end of the input power supply;
the other end of the second heating load is connected with the other end of the input power supply through the heating load switch driving circuit;
the alternating voltage step-down sampling circuit is connected with the input power supply;
and the controller is respectively connected with the heating load switch driving circuit and the alternating voltage step-down sampling circuit and used for controlling the conduction of the second heating load through the heating load switch driving circuit when the alternating voltage step-down sampling circuit acquires that the input power voltage is low voltage.
Further in accordance with an embodiment of the present invention, the automatic mode switching garment steamer control circuit further comprises:
one end of the water pump is connected with one end of the input power supply;
the other end of the water pump is connected with the other end of the input power supply through the first water pump switch driving circuit, and the control end of the first water pump switch driving circuit is connected with the controller and used for controlling the conduction of the water pump through the first water pump switch driving circuit when the voltage of the input power supply is high voltage;
and the other end of the water pump is connected with the other end of the input power supply through the second water pump switch driving circuit, and the control end of the second water pump switch driving circuit is connected with the controller and used for controlling the conduction of the water pump through the second water pump switch driving circuit when the voltage of the input power supply is low voltage.
Further, according to an embodiment of the present invention, the heating load switch driving circuit includes:
a transistor (Q4), wherein the base of the transistor (Q4) is connected with a control end of the controller through a first resistor (R14), and the emitter of the transistor (Q4) is connected with the reference ground;
and one magnetic control end of the relay is connected with the integrated electrode of the triode (Q4), the other magnetic control end of the relay is connected with a power supply, one switch control end of the relay is connected with the other end of the input power supply, and the other switch control end of the relay is connected with the other end of the second heating load.
Further, according to an embodiment of the present invention, the alternating voltage down-sampling circuit includes:
a second resistor (R1), one end of the second resistor (R1) being connected to one end of the input power supply;
a capacitor (C4), one end of the capacitor (C4) being connected to the other end of the second resistor (R1), the other end of the capacitor (C4) being connected to a reference ground;
a diode (D3), wherein the anode of the diode (D3) is connected with the one end of the capacitor (C4), the cathode of the diode is connected with a power supply, and the common end of the diode (D3) and the capacitor (C4) is also connected with the first voltage sampling end of the controller.
Further, according to an embodiment of the present invention, the first heating load is a 220V voltage heating load, and the second heating load is a 120V voltage heating load.
Further, according to an embodiment of the present invention, the first water pump switch driving circuit includes:
a third Resistor (RL), one end of the third Resistor (RL) being connected to the other end of the water pump;
the anode of the first controllable silicon (Q1) is connected with the other end of the third Resistor (RL), the cathode of the first controllable silicon (Q1) is connected with the other end of the input power supply, and the control electrode of the first controllable silicon (Q1) is connected with one control end of the controller through a fourth resistor (R16).
Further, according to an embodiment of the present invention, the second water pump switch driving circuit includes:
a second thyristor (Q2), the anode of the second thyristor (Q2) is connected with the other end of the water pump, the cathode of the second thyristor (Q2) is connected with the other end of the input power supply, and the control electrode of the second thyristor (Q2) is connected with the other control end of the controller through a fifth resistor (R17).
Further, according to an embodiment of the present invention, the control circuit of the automatic mode switching garment steamer further comprises a constant temperature inductor, and the first heating load and the second heating load are respectively connected with one end of the input power supply through the constant temperature inductor.
Further, according to an embodiment of the present invention, the control circuit of the automatic mode switching garment steamer further includes a dc step-down circuit, and the dc step-down circuit is connected to the input power supply, the heating load switch driving circuit and the controller, so as to step down the input power supply to a stable dc power supply and then provide a dc power supply for the heating load switch driving circuit and the controller.
In another aspect, an embodiment of the present invention further provides an automatic mode switching garment steamer, including:
a garment steamer body;
the automatic mode switching garment steamer control circuit is arranged in the garment steamer body.
The control circuit of the automatic mode switching garment steamer provided by the embodiment of the invention is respectively connected with two ends of an input power supply through two ends of a first heating load; one end of the second heating load is connected with one end of the input power supply; the other end of the second heating load is connected with the other end of the input power supply through a heating load switch driving circuit; the alternating voltage step-down sampling circuit is connected with an input power supply; the controller is respectively connected with the heating load switch driving circuit and the alternating voltage step-down sampling circuit and used for controlling the conduction of the second heating load through the heating load switch driving circuit when the alternating voltage step-down sampling circuit acquires that the input power voltage is low voltage. Thus, when the garment steamer is connected to a high voltage (e.g. 220V), heating is performed by the first heating load; and when the garment steamer is connected to a low voltage (e.g. 120V), by automatically incorporating a second heating load, it heats up with the first heating load. Thus, the voltage difference of different countries is self-adapted, so that the garment steamer can be used across countries. Because the heating load can be automatically adapted according to the input power supply voltage, the heating requirements under various different voltage environments can be met, an ideal using effect is achieved, and the use of a user is facilitated.
Drawings
FIG. 1 is a block diagram of an automatic mode switching garment steamer control circuit according to an embodiment of the present invention;
FIG. 2 is a block diagram of another control circuit for an automatic mode switching garment steamer according to an embodiment of the present invention;
FIG. 3 is a block diagram of an automatic mode switching garment steamer control circuit according to an embodiment of the present invention.
Reference numerals:
a first heating load 10;
a second heating load 20;
a water pump 30;
a heating load switch drive circuit 40;
a first water pump switch drive circuit 50;
a second water pump switch drive circuit 60;
a controller 70;
an ac voltage step-down sampling circuit 80;
an AC-DC circuit 90;
a temperature sensor 11;
an instruction control circuit 12;
a power supply control switch 13;
a fuse 14.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In one aspect, referring to fig. 1, an embodiment of the present invention provides an automatic mode switching garment steamer control circuit, comprising: the power supply comprises a first heating load 10, a second heating load 20, a heating load switch driving circuit 40, an alternating voltage step-down sampling circuit 80 and a controller 70, wherein two ends of the first heating load 10 are respectively connected with two ends of an input power supply; as shown in fig. 1, the first heating load 10 is a high-voltage load. For example, a 220V high voltage load, by connecting both ends of the first heating load 10 to the connections of the input power source, respectively. The input power supply is mains supply alternating current. Since both ends of the first heating load 10 are connected to both ends of the commercial power ac, respectively. Therefore, when the input power is 220V commercial ac, only the first heating load 10 heats and outputs the rated power.
One end of the second heating load 20 is connected to one end of the input power; when the input power is ac low voltage, for example, 120V voltage, at this time, since the first heating load 10 does not operate in the rated power state, and cannot output heat meeting the power requirement, the second heating load 20 needs to be incorporated to meet the overall power requirement.
The other end of the second heating load 20 is connected to the other end of the input power supply through a heating load switch driving circuit 40; the heating load switch driving circuit 40 controls whether the second heating load 20 is incorporated into the heating circuit. When the input power is 220V ac, it is not necessary to incorporate the second heating load 20 into the heating circuit, and when the input power is 120V ac, it is necessary to incorporate the second heating load 20 into the heating circuit.
The alternating voltage step-down sampling circuit 80 is connected with an input power supply; the input power can be reduced by the ac voltage reduction sampling circuit 80 and then introduced into the controller 70, and the controller 70 can determine the voltage of the input power by sampling.
The controller 70 is connected to the heating load switch driving circuit 40 and the ac voltage step-down sampling circuit 80, respectively, and is configured to control the conduction of the second heating load 20 through the heating load switch driving circuit 40 when the input power voltage obtained by the ac voltage step-down sampling circuit 80 is a low voltage. The controller 70 may acquire an actual voltage value of the input power after the input power that is stepped down and introduced is subjected to voltage sampling by the ac voltage step-down sampling circuit 80. When the voltage value of the acquired input voltage is 220V high voltage, the controller 70 does not need to incorporate the second heating load 20 into the heating circuit, and only needs the first heating load 10 to heat, so as to satisfy the heating requirement. When the controller 70 detects that the voltage value of the input voltage is 120V, the second heating load 20 needs to be incorporated into the heating circuit, and the heating requirement can be met by heating the first heating load 10 and the second heating load 20 simultaneously. At this time, the controller 70 controls the heating load switch driving circuit 40 to connect the other end of the second heating load 20 to the input power source. In this manner, the second heating load 20 is also heated.
The control circuit of the automatic mode switching garment steamer provided by the embodiment of the invention is respectively connected with two ends of an input power supply through two ends of a first heating load 10; one end of the second heating load 20 is connected to one end of the input power; the other end of the second heating load 20 is connected to the other end of the input power supply through a heating load switch driving circuit 40; the alternating voltage step-down sampling circuit 80 is connected with an input power supply; the controller 70 is connected to the heating load switch driving circuit 40 and the ac voltage step-down sampling circuit 80, respectively, and is configured to control the conduction of the second heating load 20 through the heating load switch driving circuit 40 when the input power voltage obtained by the ac voltage step-down sampling circuit 80 is a low voltage. In this way, when the garment steamer is connected to a high voltage (e.g. 220V), heating is performed by the first heating load 10; and when the garment steamer is connected to a low voltage (e.g. 120V), by automatically incorporating the second heating load 20, it heats up with the first heating load 10. Thus, the voltage difference of different countries is self-adapted, so that the garment steamer can be used across countries. Because the heating load can be automatically adapted according to the input power supply voltage, the heating requirements under various different voltage environments can be met, an ideal using effect is achieved, and the use of a user is facilitated.
Referring to fig. 2, the automatic mode switching garment steamer control circuit further comprises: the water pump 30, the first water pump switch driving circuit 50 and the second water pump switch driving circuit 60, wherein one end of the water pump 30 is connected with one end of an input power supply; as shown in fig. 2, one end of the water pump 30 is connected to an input terminal of the input power source to supply power to the water pump 30 through the input power source.
The other end of the water pump 30 is connected with the other end of the input power supply through a first water pump switch driving circuit 50, and the control end of the first water pump switch driving circuit 50 is connected with the controller 70, and is used for controlling the conduction of the water pump 30 through the first water pump switch driving circuit 50 when the input power supply voltage is high voltage; the connection of the other end of the water pump 30 to the other end of the input power source is controlled by the first water pump switch driving circuit 50 to supply power to the water pump 30. In an embodiment of the present invention, the first water pump switch driving circuit 50 is provided with a resistor, when the controller 70 detects that the input power is a high voltage (for example, 220V), the controller controls the first water pump switch driving circuit 50 to be turned on through the control end, the water pump 30 is connected to both ends of the input power after being connected in series with the resistor on the first water pump switch driving circuit 50, and the resistor on the first water pump switch driving circuit 50 limits and divides the high voltage (for example, 220V voltage) to avoid the water pump 30 in a low-voltage operating state from being burned out by the high voltage.
The other end of the water pump 30 is connected to the other end of the input power supply through the second water pump switch driving circuit 60, and the control end of the second water pump switch driving circuit 60 is connected to the controller 70, so as to control the conduction of the water pump 30 through the second water pump switch driving circuit 60 when the input power supply voltage is low. In an embodiment of the present invention, when the controller 70 detects that the input power is a low voltage (e.g. 120V), the second water pump switch driving circuit 60 can be controlled to be turned on by the control terminal, and there is no series resistor between the water pump 30 and the first water pump switch driving circuit 50, so that two terminals of the water pump 30 are respectively connected to two terminals of the input power to supply power to the water pump 30.
In the embodiment of the present invention, when the controller 70 detects that the input power voltage is a higher voltage (for example, 220V), the first water pump switch driving circuit 50 may control the water pump 30 to be connected to the input power after being connected to the series resistor, so as to limit the current and divide the voltage of the input higher voltage, and then supply power to the water pump 30. When the controller 70 detects that the input power voltage is a lower voltage (e.g., 120V), the water pump 30 may be controlled by the second water pump switch driving circuit 60 to be directly connected to the input power to supply power to the water pump 30. Therefore, the water pump 30 can work normally under the condition of different input voltages, and the high voltage of the water pump 30 is prevented from being burnt out or not working normally.
Referring to fig. 1 and 3, the heating load switch driving circuit 40 includes: a transistor Q4 and a relay, wherein the base of the transistor Q4 is connected with one control end of the controller 70 through a first resistor R14, and the emitter of the transistor Q4 is connected with the reference ground; as shown in fig. 3, the transistor Q4 is connected to a control terminal (terminal P7) of the controller 70 through a first resistor R14, so that the controller 70 can drive and control the transistor Q4.
One magnetic control end of the relay is connected with the integrated electrode of the triode Q4, the other magnetic control end of the relay is connected with the power supply, one switch control end of the relay is connected with the other end of the input power supply, and the other switch control end of the relay is connected with the other end of the second heating load 20. The collector of the triode Q4 is connected with the magnetic control end of the relay to control the on or off of the relay. Specifically, when the controller 70 detects that the input power voltage is a lower voltage of 120V, a high level voltage is output through a control terminal (terminal P7) to turn on the transistor Q4. At this time, the control switch of the relay is closed, the other end of the second heating load 20 is connected to the other end of the input power source through the relay, and the second heating load 20 generates heat in parallel with the first heating load. On the contrary, when the input power is a higher voltage power, a control terminal (terminal P7) of the controller 70 outputs a low level voltage, the transistor Q4 is turned off, the relay switch is turned off, the second heating load 20 is disconnected from the other terminal of the power, and the second heating load 20 does not generate heat.
Referring to fig. 1 and 3, the ac voltage step-down sampling circuit 80 includes: the circuit comprises a second resistor R1, a capacitor C4 and a diode D3, wherein one end of the second resistor R1 is connected with one end of an input power supply; the second resistor R1 is used to divide the input power supply voltage, limit the current, and input the divided current to the controller 70, so as to enable the controller 70 to sample the voltage. Specifically, the second resistor R1 may be provided in two according to the difference of the resistance value, for example, R1 and R2 in fig. 3.
One end of the capacitor C4 is connected with the other end of the second resistor R1, and the other end of the capacitor C4 is connected with the reference ground; the incoming input power is filtered by capacitor C4 to filter out interfering signals.
The anode of the diode D3 is connected to one end of the capacitor C4, the cathode of the diode is connected to the power supply, and the common terminal of the diode D3 and the capacitor C4 is also connected to the first voltage sampling terminal of the controller 70. Is connected with the power supply VCC through the diode D3 to limit the incoming input power voltage, and is connected to the sampling terminal (P13 terminal) of the controller 70 to sample the voltage of the input power and obtain the actual operating voltage value of the input power.
Referring to fig. 1 and 3, the ac voltage step-down sampling circuit 80 further includes: one end of the resistor R6 is connected with a first voltage sampling end of the controller 70;
one end of the resistor R5 is connected to one end of the resistor R6, the other end of the resistor R5 is connected to the power supply, and a common end of the resistor R6 and the resistor R5 is further connected to the second voltage sampling end of the controller 70.
Referring to fig. 2 and 3, the first water pump switch driving circuit 50 includes: a third resistor RL and a first controlled silicon Q1, wherein one end of the third resistor RL is connected with the other end of the water pump 30; if 2 shows, through third resistance RL and first silicon controlled rectifier Q1 series connection to when the input power is 220V of higher voltage, supply power for water pump 30 after the voltage division current-limiting, avoid water pump 30 to be burnt out by the high pressure.
The anode of the first thyristor Q1 is connected to the other end of the third resistor RL, the cathode of the first thyristor Q1 is connected to the other end of the input power supply, and the control electrode of the first thyristor Q1 is connected to a control end of the controller 70 through the second resistor R14. The controlled end of the thyristor is connected with a control end (P5 end) of the controller 70 through a fourth resistor (R16), so that the controller 70 can control the conduction of the first thyristor Q1, and the water pump 30 and the third resistor RL are connected in parallel and then connected to two ends of the input power supply. Specifically, when the controller 70 detects that the input power is a 220V higher voltage input power, a control terminal (P5 terminal) of the controller 70 outputs a control signal. At this time, the first thyristor Q1 is turned on, the water pump 30 and the third resistor RL are connected to both ends of the input power after being merged, and the water pump 30 operates normally. In contrast, when the controller 70 checks that the input power is at a lower voltage (e.g., 120V), a control terminal (terminal P5) of the controller 70 has no signal output, and the first thyristor Q1 is not conductive.
Referring to fig. 2 and 3, the second water pump switch driving circuit 60 includes: and the anode of the second controllable silicon Q2 is connected with the other end of the water pump 30, the cathode of the second controllable silicon Q2 is connected with the other end of the input power supply, and the control electrode of the second controllable silicon Q2 is connected with the other control end of the controller 70 through a fifth resistor R17. As shown in fig. 3, the second water pump switch driving circuit 60 operates substantially the same as the first water pump switch driving circuit 50. Specifically, when the controller 70 checks that the input power is the 120V lower voltage input power, the other control terminal (terminal P6) of the controller 70 outputs a control signal. At this time, the second thyristor Q2 is turned on, the water pump 30 is connected to both ends of the input power supply, the input power supply provides 120V power, and the water pump 30 works normally. In contrast, when the controller 70 checks that the input power is a higher voltage (e.g., 220V), no signal is output from the other control terminal (terminal P6) of the controller 70, and the second thyristor Q2 is not turned on.
Referring to fig. 3, the control circuit of the automatic mode switching garment steamer further comprises a constant temperature inductor, and the first heating load 10 and the second heating load 20 are respectively connected with one end of the input power supply through the constant temperature inductor. The constant temperature inductor performs constant temperature power induction, and since it is disposed between the first heating load 10 and the second heating load 20 and the input power, when it is detected that the heating temperature is too high, the constant temperature inductor may disconnect the first heating load 10 and the second heating load 20 from the input power to prevent overheating.
Referring to fig. 3, the automatic mode switching garment steamer control circuit further comprises a dc voltage reduction circuit 90, the dc voltage reduction circuit 90 is connected to the input power supply, the heating load switch driving circuit 40 and the controller 70 to reduce the input power supply to a stable dc power supply and then provide a dc power supply for the heating load switch driving circuit 40 and the controller 70. Specifically, as shown in fig. 3, the dc voltage dropping circuit 90 includes a fuse 14, a voltage dependent resistor ZNR1, rectifier diodes DP1 and DP2, voltage stabilizing filter capacitors CP1 and CP2, a voltage stabilizing filter inductor, and a voltage circuit. The voltage chip U2 is used for reducing the voltage of the direct current power supply rectified and filtered by the fuse 14, the voltage dependent resistor ZNR1, the rectifier diodes DP1 and DP2, the voltage stabilizing filter capacitors CP1 and CP2 and the voltage stabilizing filter inductor into a voltage stabilizing direct current power supply 24V, and the power is supplied to all circuit components of the circuit. In the embodiment of the invention, the input power supply is converted into the voltage-stabilizing direct-current power supply 24V through the direct-current voltage reduction circuit 90, and the power is uniformly supplied to all circuit components, so that the power supply circuit is simple and practical, and does not need multi-path and complex auxiliary power supply. The complexity of the circuit is reduced.
In another aspect, an embodiment of the present invention further provides an automatic mode switching garment steamer, including: the automatic mode switching garment steamer comprises a garment steamer body and the automatic mode switching garment steamer control circuit, wherein the automatic mode switching garment steamer control circuit is arranged in the garment steamer body.
The automatic mode switching garment steamer provided by the embodiment of the invention is arranged in a garment steamer body through the automatic mode switching garment steamer control circuit, and the automatic mode switching garment steamer control circuit can realize heating through the first heating load 10 when the garment steamer is connected with high voltage (such as 220V); and when the garment steamer is connected to a low voltage (e.g. 120V), by automatically incorporating the second heating load 20, it heats up with the first heating load 10. Thus, the voltage difference of different countries is self-adapted, so that the garment steamer can be used across countries. Because the heating load can be automatically adapted according to the input power supply voltage, the heating requirements under various different voltage environments can be met, an ideal using effect is achieved, and the use of a user is facilitated.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An automatic mode switching garment steamer control circuit, comprising:
the two ends of the first heating load are respectively connected with the two ends of the input power supply;
a second heating load, one end of which is connected with one end of the input power supply;
the other end of the second heating load is connected with the other end of the input power supply through the heating load switch driving circuit;
the alternating voltage step-down sampling circuit is connected with the input power supply;
and the controller is respectively connected with the heating load switch driving circuit and the alternating voltage step-down sampling circuit and used for controlling the conduction of the second heating load through the heating load switch driving circuit when the alternating voltage step-down sampling circuit acquires that the input power voltage is low voltage.
2. The automatic mode switching garment steamer control circuit of claim 1 further comprising:
one end of the water pump is connected with one end of the input power supply;
the other end of the water pump is connected with the other end of the input power supply through the first water pump switch driving circuit, and the control end of the first water pump switch driving circuit is connected with the controller and used for controlling the conduction of the water pump through the first water pump switch driving circuit when the voltage of the input power supply is high voltage;
and the other end of the water pump is connected with the other end of the input power supply through the second water pump switch driving circuit, and the control end of the second water pump switch driving circuit is connected with the controller and used for controlling the conduction of the water pump through the second water pump switch driving circuit when the voltage of the input power supply is low voltage.
3. The automatic mode switching garment steamer control circuit of claim 1 wherein the heating load switch drive circuit comprises:
a transistor (Q4), wherein the base of the transistor (Q4) is connected with a control end of the controller through a first resistor (R14), and the emitter of the transistor (Q4) is connected with the reference ground;
and one magnetic control end of the relay is connected with the integrated electrode of the triode (Q4), the other magnetic control end of the relay is connected with a power supply, one switch control end of the relay is connected with the other end of the input power supply, and the other switch control end of the relay is connected with the other end of the second heating load.
4. The automatic mode switching garment steamer control circuit of claim 1 wherein the ac voltage down-sampling circuit comprises:
a second resistor (R1), one end of the second resistor (R1) being connected to one end of the input power supply;
a capacitor (C4), one end of the capacitor (C4) being connected to the other end of the second resistor (R1), the other end of the capacitor (C4) being connected to a reference ground;
a diode (D3), wherein the anode of the diode (D3) is connected with the one end of the capacitor (C4), the cathode of the diode is connected with a power supply, and the common end of the diode (D3) and the capacitor (C4) is also connected with the first voltage sampling end of the controller.
5. The automatic mode switching garment steamer control circuit of claim 1 wherein the first heating load is a 220V voltage heating load and the second heating load is a 120V voltage heating load.
6. The automatic mode switching garment steamer control circuit of claim 2 wherein the first water pump switch drive circuit comprises:
a third Resistor (RL), one end of the third Resistor (RL) being connected to the other end of the water pump;
the anode of the first controllable silicon (Q1) is connected with the other end of the third Resistor (RL), the cathode of the first controllable silicon (Q1) is connected with the other end of the input power supply, and the control electrode of the first controllable silicon (Q1) is connected with one control end of the controller through a fourth resistor (R16).
7. The automatic mode switching garment steamer control circuit of claim 6 wherein the second water pump switch drive circuit comprises:
a second thyristor (Q2), the anode of the second thyristor (Q2) is connected with the other end of the water pump, the cathode of the second thyristor (Q2) is connected with the other end of the input power supply, and the control electrode of the second thyristor (Q2) is connected with the other control end of the controller through a fifth resistor (R17).
8. The automatic mode-switching garment steamer control circuit of claim 1 further comprising a constant temperature inductor through which the first and second heating loads are connected to one end of the input power source, respectively.
9. The automatic mode-switching garment steamer control circuit of claim 1 further comprising a dc voltage reduction circuit connected to the input power supply, the heating load switch drive circuit and the controller to reduce the input power supply to a stable dc power supply and then provide dc power to the heating load switch drive circuit and the controller.
10. An automatic mode switching garment steamer, comprising:
a garment steamer body;
the automatic mode switching garment steamer control circuit of any one of claims 1 to 9, which is disposed within the garment steamer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830796.9A CN111945403A (en) | 2020-08-18 | 2020-08-18 | Automatic mode switching garment steamer control circuit and garment steamer with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830796.9A CN111945403A (en) | 2020-08-18 | 2020-08-18 | Automatic mode switching garment steamer control circuit and garment steamer with same |
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| Publication Number | Publication Date |
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| CN111945403A true CN111945403A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010830796.9A Pending CN111945403A (en) | 2020-08-18 | 2020-08-18 | Automatic mode switching garment steamer control circuit and garment steamer with same |
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| CN (1) | CN111945403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12000083B2 (en) * | 2021-09-16 | 2024-06-04 | Shenzhen Pukaiyu Technology Co., Ltd. | Garment steamer |
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2020
- 2020-08-18 CN CN202010830796.9A patent/CN111945403A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12000083B2 (en) * | 2021-09-16 | 2024-06-04 | Shenzhen Pukaiyu Technology Co., Ltd. | Garment steamer |
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