CN109778512B - Filter screen detection circuit in clothes dryer - Google Patents
Filter screen detection circuit in clothes dryer Download PDFInfo
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- CN109778512B CN109778512B CN201910089026.0A CN201910089026A CN109778512B CN 109778512 B CN109778512 B CN 109778512B CN 201910089026 A CN201910089026 A CN 201910089026A CN 109778512 B CN109778512 B CN 109778512B
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Abstract
The invention discloses a filter screen detection circuit in a clothes dryer, and belongs to the technical field of circuit design. The filter screen detection circuit in the clothes dryer comprises an infrared detection module, an air temperature detection module, an MCU module, an LED warning module and a power supply conversion module. The infrared detection module is used for detecting the blocking condition of the filter screen; the air temperature detection module is used for capturing real-time temperature information; the MCU module processes detection signals of the infrared detection module and the air temperature detection module; the LED warning module makes different lamp effects according to the processing result so as to play a warning role; and the power supply conversion module converts the external voltage into the working voltage of a filter screen detection circuit in the clothes dryer. The filter screen detection circuit in the clothes dryer can quickly detect whether the filter screen of the clothes dryer is full or not, captures temperature change in real time, reminds a user through the LED warning module, is simple, convenient and accurate, and is low in cost.
Description
Technical Field
The invention relates to the technical field of circuit design, in particular to a filter screen detection circuit in a clothes dryer.
Background
The clothes dryer is a clean household appliance which instantly evaporates and dries water in washed clothes by utilizing an electric heating mode. With the improvement of the quality of life of people at present, clothes dryers increasingly enter people's life.
The control circuit of the clothes dryer on the market at present is simpler, generally only a mechanical timer is provided, the working time of the clothes dryer is set by a user, and the operation is automatically finished when the working time is up. The simple clothes dryer circuit intelligently achieves a simple timing clothes drying function, cannot detect the quantity of placed clothes and the internal temperature condition, further cannot achieve a man-machine interaction function, and has certain disadvantages.
Disclosure of Invention
The invention aims to provide a filter screen detection circuit in a clothes dryer to solve the problems in the background art.
In order to solve the above technical problem, the present invention provides a filter screen detection circuit in a clothes dryer, comprising:
the infrared detection module is used for detecting the blocking condition of the filter screen;
the air temperature detection module is used for capturing real-time temperature information;
the MCU module is used for processing detection signals of the infrared detection module and the air temperature detection module;
the LED warning module is used for making different light effects according to the processing result of the MCU module;
and the power supply conversion module supplies power to the infrared detection module, the air temperature detection module, the MCU module and the LED warning module.
Optionally, the filter screen detection circuit in the clothes dryer further comprises a single chip microcomputer module, and the single chip microcomputer module converts analog signals of the infrared detection module and the air temperature detection module into digital signals and transmits the digital signals to the MCU module.
Optionally, the infrared detection module includes resistors R11-R13, an infrared emitting diode D11, an infrared receiving diode D12, and a capacitor C11; wherein the content of the first and second substances,
one end of the resistor R11 is connected with the infrared emitting diode D11 and is grounded, and the other end of the resistor R11 is connected with the power supply conversion module; one end of the resistor R12 is connected with the infrared receiving diode D12 and is grounded, and the other end of the resistor R12 is connected with the power supply conversion module; the resistor R13 is connected between the resistor R12 and the infrared receiving diode D12; the capacitor C11 is connected in parallel with the infrared receiving diode D12.
Optionally, the air temperature detection module includes a thermistor RT, a resistor R21, a resistor R22, and a capacitor C21; wherein the content of the first and second substances,
one end of the thermistor RT is connected with the power supply conversion module, and the other end of the thermistor RT is grounded through a resistor R22; one end of the resistor R21 is connected between the thermistor RT and the resistor R22, and the other end is grounded through a capacitor C21.
Optionally, the LED warning module includes resistors R41 and R42, an infrared emitting diode D41, and a transistor Q1; wherein the content of the first and second substances,
the resistor R41 is connected in series with the infrared emitting diode D41 and connected to the collector of the triode Q1; the resistor R42 is connected with the base of the triode Q1; the emitter of the transistor Q1 is grounded.
Optionally, different light effects of the LED warning module include breathing, constant lighting, and flashing effects.
Optionally, the power conversion module converts an external voltage into a working voltage of a filter screen detection circuit in the clothes dryer.
The invention provides a filter screen detection circuit in a clothes dryer, which comprises an infrared detection module, an air temperature detection module, an MCU module, an LED warning module and a power supply conversion module. Specifically, the infrared detection module is used for detecting the blocking condition of the filter screen and converting different blocking conditions into different voltages; the air temperature detection module is used for capturing real-time temperature information and converting the real-time temperature information into different voltages according to different temperatures; the MCU module processes detection signals of the infrared detection module and the air temperature detection module; the LED warning module makes different lamp effects according to the processing result of the MCU module so as to play a warning role; the power supply conversion module converts external voltage into working voltage of a filter screen detection circuit in the clothes dryer, and supplies power to the infrared detection module, the air temperature detection module, the MCU module and the LED warning module. Whether the filter screen of the clothes dryer is full can be quickly detected, the temperature change is captured in real time, a user is reminded through the LED warning module, the clothes dryer is simple, convenient and accurate, and the cost is low.
Drawings
FIG. 1 is a schematic structural diagram of a filter screen detection circuit in a clothes dryer provided by the present invention;
FIG. 2 is a schematic diagram of a circuit structure of the infrared detection module;
FIG. 3 is a schematic diagram of the circuit structure of the air temperature detection module;
fig. 4 is a schematic circuit diagram of the LED warning module.
Detailed Description
The present invention provides a circuit for detecting a filter screen in a clothes dryer, which is further described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
The invention provides a filter screen detection circuit in a clothes dryer, which has a structure shown in figure 1. The filter screen detection circuit in the clothes dryer comprises an infrared detection module 1, an air temperature detection module 2, an MCU module 3, an LED warning module 4 and a power supply conversion module 5. Specifically, the infrared detection module 1 is used for detecting the blocking condition of the filter screen and converting different blocking conditions into different voltages; the air temperature detection module 2 is used for capturing real-time temperature information and converting the real-time temperature information into different voltages according to different temperatures; the MCU module 3 processes detection signals of the infrared detection module 1 and the air temperature detection module 2; the LED warning module 4 makes different lamp effects according to the processing result of the MCU module 3 to play a warning role; the power supply conversion module 5 converts external voltage into working voltage of a filter screen detection circuit in the clothes dryer, and supplies power to the infrared detection module 1, the air temperature detection module 2, the MCU module 3 and the LED warning module 4.
Specifically, the filter screen detection circuit in the clothes dryer further comprises a single chip microcomputer module (not shown in the figure) for converting analog signals of the infrared detection module 1 and the air temperature detection module 2 into digital signals, and transmitting the digital signals to the MCU module 3, so that the MCU module 3 can analyze and process the digital signals.
Fig. 2 is a schematic circuit structure diagram of the infrared detection module 1. The infrared detection module 1 comprises resistors R11, R12 and R13, an infrared emitting diode D11, an infrared receiving diode D12 and a capacitor C11; one end of the resistor R11 is connected with the infrared emitting diode D11 and is grounded, and the other end is connected with the power conversion module 5; one end of the resistor R12 is connected with the infrared receiving diode D12 and is grounded, and the other end is connected with the power supply conversion module 5; the resistor R13 is connected between the resistor R12 and the infrared receiving diode D12; the capacitor C11 is connected in parallel with the infrared receiving diode D12.
Fig. 3 is a schematic structural diagram of the air temperature detection module 2, which can achieve different equivalence of breathing, constant brightness, and flickering. The air temperature detection module 2 comprises a thermistor RT, a resistor R21, a resistor R22 and a capacitor C21; one end of the thermistor RT is connected with the power conversion module 5, and the other end of the thermistor RT is grounded through the resistor R22; one end of the resistor R21 is connected between the thermistor RT and the resistor R22, and the other end is grounded through the capacitor C21.
The structure of the LED warning module 4 is shown in fig. 4, and includes resistors R41, R42, an infrared emitting diode D41, and a triode Q1; wherein the resistor R41 is connected in series with the infrared emitting diode D41 and connected to the collector of the triode Q1; the resistor R42 is connected with the base of the triode Q1; the emitter of the transistor Q1 is grounded.
The filter screen detection circuit in the clothes dryer can quickly detect whether the filter screen of the clothes dryer is full or not, can capture temperature change in real time, can remind a user through the LED warning module, is simple, convenient and accurate, and has low cost.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (1)
1. A filter screen detection circuit in a clothes dryer is characterized by comprising:
the infrared detection module (1) is used for detecting the blocking condition of the filter screen;
the air temperature detection module (2) is used for capturing real-time temperature information;
the MCU module (3) is used for processing detection signals of the infrared detection module (1) and the air temperature detection module (2);
the LED warning module (4) is used for making different lamp effects according to the processing result of the MCU module (3);
the power supply conversion module (5) is used for supplying power to the infrared detection module (1), the air temperature detection module (2), the MCU module (3) and the LED warning module (4);
the infrared detection module (1) comprises resistors R11-R13, an infrared emitting diode D11, an infrared receiving diode D12 and a capacitor C11; wherein the content of the first and second substances,
one end of the resistor R11 is connected with the infrared emitting diode D11 and is grounded, and the other end is connected with the power supply conversion module (5); one end of the resistor R12 is connected with the infrared receiving diode D12 and is grounded, and the other end is connected with the power supply conversion module (5); the resistor R13 is connected between the resistor R12 and the infrared receiving diode D12; the capacitor C11 is connected in parallel with the infrared receiving diode D12;
the filter screen detection circuit in the clothes dryer also comprises a singlechip module, and the singlechip module is used for converting analog signals of the infrared detection module (1) and the air temperature detection module (2) into digital signals and transmitting the digital signals to the MCU module (3);
the air temperature detection module (2) comprises a thermistor RT, a resistor R21, a resistor R22 and a capacitor C21; wherein the content of the first and second substances,
one end of the thermistor RT is connected with the power supply conversion module (5), and the other end of the thermistor RT is grounded through a resistor R22; one end of the resistor R21 is connected between the thermistor RT and the resistor R22, and the other end is grounded through a capacitor C21;
the LED warning module (4) comprises resistors R41 and R42, an infrared emitting diode D41 and a triode Q1; wherein the content of the first and second substances,
the resistor R41 is connected in series with the infrared emitting diode D41 and connected to the collector of the triode Q1; the resistor R42 is connected with the base of the triode Q1; the emitter of the triode Q1 is grounded;
different lamp effects of the LED warning module (4) comprise breathing, constant lighting and flashing effects;
and the power supply conversion module (5) converts external voltage into working voltage of a filter screen detection circuit in the clothes dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089026.0A CN109778512B (en) | 2019-01-30 | 2019-01-30 | Filter screen detection circuit in clothes dryer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910089026.0A CN109778512B (en) | 2019-01-30 | 2019-01-30 | Filter screen detection circuit in clothes dryer |
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| CN109778512A CN109778512A (en) | 2019-05-21 |
| CN109778512B true CN109778512B (en) | 2022-03-01 |
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| CN201910089026.0A Active CN109778512B (en) | 2019-01-30 | 2019-01-30 | Filter screen detection circuit in clothes dryer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112981862B (en) * | 2021-03-09 | 2022-11-22 | 海信冰箱有限公司 | Clothes care equipment monitoring method and device, storage medium and clothes care equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124802A (en) * | 1994-10-14 | 1996-06-19 | 东芝株式会社 | Clothes dryor |
| CN101392448A (en) * | 2007-09-18 | 2009-03-25 | 博西华电器（江苏）有限公司 | Cloth drying device |
| CN102154805A (en) * | 2011-03-11 | 2011-08-17 | 海尔集团公司 | Clothes dryer air duct jam judging method and clothes dryer |
| CN103046298A (en) * | 2011-10-13 | 2013-04-17 | Lg电子株式会社 | Laundry machine and controlling method thereof |
| CN205186664U (en) * | 2015-09-30 | 2016-04-27 | 河南中烟工业有限责任公司 | Detect cigarette packagine machine export blocking phenomenon's device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9879372B2 (en) * | 2013-06-18 | 2018-01-30 | Samsung Electronics Co., Ltd. | Clothes dryer |
| CN108806230A (en) * | 2018-05-30 | 2018-11-13 | 苏州树云网络科技有限公司 | A kind of intelligent communication harvester based on infrared identification |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124802A (en) * | 1994-10-14 | 1996-06-19 | 东芝株式会社 | Clothes dryor |
| CN101392448A (en) * | 2007-09-18 | 2009-03-25 | 博西华电器（江苏）有限公司 | Cloth drying device |
| CN102154805A (en) * | 2011-03-11 | 2011-08-17 | 海尔集团公司 | Clothes dryer air duct jam judging method and clothes dryer |
| CN103046298A (en) * | 2011-10-13 | 2013-04-17 | Lg电子株式会社 | Laundry machine and controlling method thereof |
| CN205186664U (en) * | 2015-09-30 | 2016-04-27 | 河南中烟工业有限责任公司 | Detect cigarette packagine machine export blocking phenomenon's device |
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