CN209900145U - Sterilizing lamp driving module of clothes airing machine - Google Patents
Sterilizing lamp driving module of clothes airing machine Download PDFInfo
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- CN209900145U CN209900145U CN201920408675.8U CN201920408675U CN209900145U CN 209900145 U CN209900145 U CN 209900145U CN 201920408675 U CN201920408675 U CN 201920408675U CN 209900145 U CN209900145 U CN 209900145U
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Abstract
The utility model discloses a airing machine sterilamp drive module, including the sterilamp, a controller, power module and be used for driving the drive circuit of sterilamp switching, power module is respectively to the controller, the drive circuit power supply, the controller has the signal input part that is used for receiving outside remote control signal and is used for exporting drive signal's signal output part, signal output part inserts drive circuit's input, drive circuit's output connects to the sterilamp and is used for supplying power for the sterilamp, signal input part receives outside remote control signal, make the controller produce the drive signal who is used for ordering about drive circuit work, drive signal makes drive circuit drive control sterilamp switching through signal output part. The utility model discloses can avoid causing the impact to other devices of airing machine, and the security is good.
Description
Technical Field
The utility model relates to a sterilizing lamp of airing machine, concretely relates to airing machine sterilizing lamp drive module.
Background
At present, the sterilizing lamps used in the clothes drying machines in the market, such as 3W sterilizing lamps, are mainly powered by alternating current mains supply and are driven by a capacitor and a relay. And the electric capacity can charge when circular telegram, and the electric current is very big this moment, can produce very big impact to other electrical parts, if cause the relay adhesion, the disinfection lamp damages etc.. After the capacitor is powered off, the capacitor can discharge, but the discharging speed is slow, large current can be stored for a long time, and the safety of a user of the clothes drying machine is not facilitated. In addition, the capacitor and the relay are expensive, and the manufacturing cost is high, so that the product competition and development are not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a sterilizing lamp driving module of a clothes airing machine, which can avoid the impact on other devices of the clothes airing machine and has good safety.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a airing machine sterilamp drive module, including the sterilamp, a controller, power module and be used for driving the drive circuit of sterilamp switching, power module is respectively to the controller, the drive circuit power supply, the controller has the signal input part that is used for receiving outside remote control signal and is used for exporting drive signal's signal output part, signal output part inserts drive circuit's input, drive circuit's output connects to the sterilamp and is used for supplying power for the sterilamp, signal input part receives outside remote control signal, make the controller produce the drive signal who is used for ordering about drive circuit work, drive signal makes drive circuit drive control sterilamp switching through signal output part.
Preferably, the driving circuit comprises a driving chip and a switching tube, the driving chip is provided with a power input pin, an enabling end and a switch control output pin, the output end of the switching tube is electrically connected with the disinfection lamp, the input end of the switching tube is electrically connected with the switch control output pin, the power input pin is connected with the power supply module, and the enabling end is electrically connected with the signal output end.
Preferably, a current limiting circuit is connected between the enabling end and the signal output end.
Preferably, the current limiting circuit comprises a resistor R1, a capacitor C2 and a resistor R2, wherein after the capacitor C2 and the resistor R2 are connected in parallel, one end of the capacitor C2 is grounded, and the other end of the capacitor C2 and the resistor R1 are connected in series between the enable end and the signal output end.
Preferably, the power input pin is electrically connected with the power supply module through the filter circuit.
Preferably, the filter circuit comprises a decoupling capacitor EC1 and a capacitor C1.
Preferably, the driving module of the disinfection lamp can also control the output current, and the magnitude of the output current is controlled by adjusting the resistance values of the resistor R3 and the resistor R4.
Preferably, the switch tube is a MOS tube, a gate of the MOS tube is connected to the switch control output pin, a source of the MOS tube is grounded, and a drain of the MOS tube is electrically connected to one end of one of the disinfection lamps through an inductor and is connected to the parallel circuit of the resistor R3 and the resistor R4 through a diode D2.
Preferably, the sterilizing lamps are two arranged in series.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a power module is the power supply of controller and drive circuit, the circuit structure has been simplified, and when the disinfection button was pressed to the outside remote controller, can the signals, signal transmission is to the controller, the signal is received to controller passing signal input part, control drive circuit work, and then the switching of control sterilamp goes out, owing to do not have electric capacity to charge, the process of discharging, consequently, can prevent that each components and parts from strikeing impairedly, also can not cause the risk of using because of discharging to the user, make its security high, low cost, extended functionality is strong.
Drawings
Fig. 1 is a schematic connection block diagram of the sterilizing lamp driving module of the clothes airing machine of the present invention;
fig. 2 is a circuit diagram of the sterilizing lamp driving module of the clothes airing machine of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
A airing machine disinfection lamp drive module as shown in fig. 1-2, including the disinfection lamp, a controller, power module and be used for driving the drive circuit of disinfection lamp switching, power module is to the controller respectively, drive circuit supplies power, the controller has the signal input part that is used for receiving outside remote control signal and is used for exporting drive signal's signal output part, signal output part inserts drive circuit's input, drive circuit's output connects to the disinfection lamp and is used for supplying power for the disinfection lamp, signal input part receives outside remote control signal, make the controller produce the drive signal that is used for ordering about drive circuit work, drive signal makes drive circuit drive control disinfection lamp switching through signal output part. Supply power for controller and drive circuit through power module, the circuit structure has been simplified, and when the disinfection button was pressed to outside remote controller, can the signals, signal transmission is to the controller, the controller passes through signal input part and receives the signal, control drive circuit work, and then the switching of control sterilamp is bright and is gone out, owing to do not have the electric capacity and charge, the process of discharging, consequently, can prevent that each components and parts from strikeing impairedly, also can not cause the risk of using to the user because of discharging, make its security high, low cost, it is strong to expand the functionality.
As a preferred embodiment, the driving circuit of this embodiment includes a driving chip U1 and a switching transistor MOS1, the driving chip U1 has a power input pin, an enable terminal and a switching control output pin, the output terminal of the switching transistor is electrically connected to the disinfecting lamp, the input terminal of the switching transistor MOS1 is electrically connected to the switching control output pin, the power input pin is connected to the power supply module, and the enable terminal is electrically connected to the signal output terminal. The switch tube MOS1 is a MOS tube, the grid of the MOS tube is connected to the switch control output pin, the source of the MOS tube is grounded, the drain of the MOS tube is electrically connected to one end of one of the disinfection lamps through an inductor and is connected to the parallel circuit of the resistor R3 and the resistor R4 through the diode D2. The current of the drain electrode of the output end is controlled by the voltage of the grid electrode of the input MOS tube, which is equivalent to a power switch.
The sterilizing lamps of this embodiment are two lamps arranged in series. The drain of the MOS transistor is electrically connected to one end of one of the disinfection lamps through an inductor L1. The inductor L1 is used to store energy and then discharge the energy to a load, i.e., a germicidal lamp. The power input pin is pin 1 of the drive chip U1, and the power supply module supplies power to a 32V direct-current power supply; the enable terminal is pin 3 of the driver chip U1. Pin 4 of the driver chip U1 is a GND pin, the switch control output pin is pin 5 of the driver chip U1, and pin 6 of the driver chip U1 is a VCC port, and is connected to a capacitor C3, thereby playing a role of filtering. The controller is an MCU controller IC 1. The IC1 has a model number R5F10368, and the driver IC U1 is MP24894, but is not limited thereto.
In order to protect the driving chip, a current limiting circuit is connected between the enabling end and the signal output end. Specifically, the current limiting circuit of this example includes a resistor R1, a capacitor C2, and a resistor R2, and the capacitor C2 and the resistor R2 are connected in parallel and then connected in series with the resistor R1 between the enable terminal and the signal output terminal. The resistor R2 and the capacitor C2 are arranged to prevent the disinfection lamp from flashing instantly at the moment of switching electricity caused by instant asynchronous switching.
In order to provide a stable power supply, the power input pin is electrically connected with the power supply module through the filter circuit. Specifically, the filter circuit includes a decoupling capacitor EC1 and a capacitor C1, which function as a filter.
In order to better control the current obtained by the disinfection lamp, the disinfection lamp driving module of the present embodiment can also control the output current, and the magnitude of the output current is controlled by adjusting the magnitudes of the resistances of the resistor R3 and the resistor R4.
When the external remote controller presses the disinfection key, a signal is sent out, the signal is transmitted to the controller, the controller works to trigger a high level to give the enabling end of the driving circuit, the driving chip is conducted due to the high level, and the driving circuit works to control the on and off of the disinfection lamp. The diodes D1 and D2 are unidirectional diodes, and function to prevent current from flowing back.
The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.
Claims (9)
1. The utility model provides a airing machine sterilamp drive module, a serial communication port, including the sterilamp, a controller, power module and be used for driving the drive circuit of sterilamp switching, power module is respectively to the controller, the drive circuit power supply, the controller has the signal input part that is used for receiving outside remote control signal and is used for exporting drive signal's signal output part, signal output part inserts drive circuit's input, drive circuit's output connects to the sterilamp and is used for supplying power for the sterilamp, signal input part receives outside remote control signal, make the controller produce the drive signal who is used for ordering about drive circuit work, drive signal makes drive circuit drive control sterilamp switching through signal output part.
2. The clothes airing machine sterilizing lamp driving module according to claim 1, wherein the driving circuit comprises a driving chip and a switching tube, the driving chip is provided with a power input pin, an enabling end and a switching control output pin, the output end of the switching tube is electrically connected with the sterilizing lamp, the input end of the switching tube is electrically connected with the switching control output pin, the power input pin is connected with the power supply module, and the enabling end is electrically connected with the signal output end.
3. The clothes airing machine sterilizing lamp driving module according to claim 2, wherein a current limiting circuit is connected between the enabling end and the signal output end.
4. The clothes airing machine sterilizing lamp driving module according to claim 3, wherein the current limiting circuit comprises a resistor R1, a capacitor C2 and a resistor R2, one end of the capacitor C2 is grounded after being connected with the resistor R2 in parallel, and the other end of the capacitor C2 is connected with the resistor R1 in series between the enabling end and the signal output end.
5. The clothes drying machine sterilizing lamp driving module according to claim 2, wherein the power input pins are electrically connected with the power supply module through a filter circuit.
6. The clothes washer disinfecting lamp driving module of claim 5, wherein the filter circuit comprises a decoupling capacitor EC1 and a capacitor C1.
7. The clothes drying machine sterilizing lamp driving module according to claim 1, wherein the sterilizing lamp driving module further controls the output current, and the magnitude of the output current is controlled by adjusting the resistance values of the resistor R3 and the resistor R4.
8. The clothes airing machine sterilizing lamp driving module according to claim 2, wherein the switching tube is an MOS transistor, a gate of the MOS transistor is connected to the switch control output pin, a source of the MOS transistor is grounded, and a drain of the MOS transistor is electrically connected to one end of one of the sterilizing lamps through an inductor and connected to a parallel circuit of a resistor R3 and a resistor R4 through a diode D2.
9. The clothes drying machine sterilizing lamp driving module according to claim 1, wherein the sterilizing lamps are two lamps arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408675.8U CN209900145U (en) | 2019-03-28 | 2019-03-28 | Sterilizing lamp driving module of clothes airing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408675.8U CN209900145U (en) | 2019-03-28 | 2019-03-28 | Sterilizing lamp driving module of clothes airing machine |
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| CN209900145U true CN209900145U (en) | 2020-01-07 |
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| CN201920408675.8U Active CN209900145U (en) | 2019-03-28 | 2019-03-28 | Sterilizing lamp driving module of clothes airing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771675A (en) * | 2019-03-28 | 2019-05-21 | 广东好太太科技集团股份有限公司 | A kind of clothes airing machine sterilamp drive module |
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2019
- 2019-03-28 CN CN201920408675.8U patent/CN209900145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771675A (en) * | 2019-03-28 | 2019-05-21 | 广东好太太科技集团股份有限公司 | A kind of clothes airing machine sterilamp drive module |
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