CN107858812A - Washing machine with the clothing prompting function that dries in the air - Google Patents

Abstract

The present invention provides a kind of washing machine with the clothing prompting function that dries in the air, and it includes：Inner cylinder, outer barrel, detection circuit, buzzer, infrared probe, wireless module and controller.The present invention have the clothing prompting function that dries in the air washing machine versatility is good, precision is high, it accurately can be detected to the clothing of washing machine internal, the problem of avoiding erroneous judgement present in prior art and false alarm.Meanwhile the washing machine with the clothing prompting function that dries in the air of the invention can be alarmed exactly according to testing result, and can synchronous remote notification user carry out the clothing that dries in the air.

Description

Washing machine with laundry reminder function

technical field

The invention relates to a washing machine, in particular to a washing machine with a laundry reminder function.

Background technique

Now the washing machine is an indispensable household appliance in daily life. Most of the household washing machines, after washing the clothes, basically notify the user that the washing program is finished by a few beeps of the buzzer. Yet along with the quickening of people's rhythm of life, busy life makes people often forget the clothes that also remain in the washing machine. In this way, if the clothes are in the washing machine for more than half an hour, a large number of bacteria will grow, and if the water temperature is appropriate, the reproduction speed will be 3 to 4 times that of usual times, and mildew will easily occur if they are left in the washing machine for a long time. Therefore, in view of the above problems, it is necessary to propose a further solution.

Contents of the invention

The present invention aims to provide a washing machine with a laundry reminder function to overcome the deficiencies in the prior art.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

A washing machine with a laundry reminder function, comprising: an inner cylinder, an outer cylinder, a detection circuit, a buzzer, an infrared probe, a wireless module and a controller;

The inner cylinder is accommodated in the outer cylinder, the detection circuit is integrated on the inner wall of the outer cylinder, the detection circuit and the controller transmit signals, and the controller controls the beeper according to the received signal. The buzzer and the wireless module work, the infrared probe and the controller perform signal transmission, and the controller controls the buzzer to work according to the received infrared signal;

The detection circuit includes: a power supply, a first diode, a second diode, a third diode, a triode, a first resistor, a second resistor, a third resistor, a fourth resistor, an operational amplifier, and a demodulator ;

One output of the power supply is connected to the demodulator through the first diode and triode, and the other output of the power supply is connected to the demodulator through the first resistor, the second resistor, the third resistor, the second diode It is connected with the operational amplifier, and the operational amplifier is connected with the demodulator at the same time, and the demodulator is connected with the output terminal through the cathode of the third diode, and the demodulator is connected with the output terminal through the The anode of the third diode is connected to the power supply through the fourth resistor.

As an improvement of the washing machine of the present invention, the controller controls the buzzer to work periodically according to the set buzzing duration according to the detection signal sent by the detection circuit.

As an improvement of the washing machine of the present invention, the controller controls the buzzer to work according to the signal sent by the infrared probe.

As an improvement to the washing machine of the present invention, the controller controls the wireless module to perform remote communication with the user's mobile phone according to the detection signal sent by the detection circuit.

As an improvement of the washing machine of the present invention, a varistor is also arranged between the power supply and the first diode, and the power supply is connected to the collector of the triode through the varistor and the first diode, and the triode The emitter is grounded, and the base is connected to the demodulator through a current limiting resistor.

As an improvement of the washing machine of the present invention, the other output of the power supply is also connected to the second diode and grounded through the first resistor and the second resistor, and the first resistor and the second resistor are also connected to the first capacitor and grounded.

As an improvement to the washing machine of the present invention, the second resistor and the second diode are connected to the demodulator through a third resistor and a second capacitor.

As an improvement of the washing machine of the present invention, the operational amplifier is grounded and powered at the same time, and is connected to the demodulator through a third capacitor.

As an improvement to the washing machine of the present invention, the demodulator is also grounded through the fourth capacitor and the fifth capacitor connected in parallel, and grounded through the fifth resistor and the sixth capacitor connected in series, and the connection between the fifth resistor and the sixth capacitor is The demodulator is connected.

As an improvement of the washing machine of the present invention, the model of the operational amplifier is LM6364, and the model of the demodulator is LM231.

Compared with the prior art, the beneficial effects of the present invention are: the washing machine with the laundry reminder function of the present invention has good versatility and high precision, and it can accurately detect the clothes inside the washing machine, avoiding the problems existing in the prior art. The problem of misjudgment and false alarm. At the same time, the washing machine with the clothes-drying reminder function of the present invention can accurately give an alarm according to the detection result, and can synchronously and remotely notify the user to hang the clothes.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of a washing machine with a laundry reminder function according to the present invention;

FIG. 2 is a circuit diagram of the detection circuit in FIG. 1 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in FIG. 1 , the present invention provides a washing machine with a laundry reminder function, which includes: an inner cylinder, an outer cylinder 1 , a detection circuit 2 , a buzzer, an infrared probe 4 , a wireless module 5 and a controller.

The inner cylinder is accommodated in the outer cylinder 1, the detection circuit 2 is integrated on the inner wall of the outer cylinder 1, and the detection circuit 2 communicates with the controller for signal transmission. Therefore, the controller controls the buzzer and the wireless module 5 to work according to the received signal. The infrared probe 4 performs signal transmission with the controller, and the controller controls the buzzer to work according to the received infrared signal. Wherein, the controller can adopt known STM32 single-chip microcomputer.

As shown in Fig. 2, the detection circuit 2 is used to realize accurate detection of the clothes in the cylinder. The detection circuit 2 includes: a power supply VCC, a first diode LED1, a second diode LED2, a third diode LED3, a triode N1, a first resistor R1, a second resistor R2, a third resistor R3, a first Four resistors R6, operational amplifier U1, demodulator U2. Wherein, the model of the operational amplifier U1 is LM6364, and the model of the demodulator U2 is LM231.

Wherein, one output of the power supply VCC is connected to the demodulator U2 through the first diode LED1 and the transistor N1, and the other output of the power supply VCC is connected through the first resistor R1, the second resistor R2, The third resistor R3 and the second diode LED2 are connected to the operational amplifier U1, and the operational amplifier U1 is connected to the demodulator U2 at the same time, and the demodulator U2 is connected through the third diode The cathode of the LED3 is connected to the output terminal CN1, and the demodulator U2 is connected to the power supply VCC via the anode of the third diode LED3 and the fourth resistor R6.

Further, a varistor VR1 is also provided between the power supply VCC and the first diode LED1, and the power supply VCC is connected to the collector of the triode N1 through the varistor VR1 and the first diode LED1. Preferably, the emitter of the triode N1 is grounded, and the base is connected to the demodulator U2 through a current limiting resistor R5. The other output of the power supply VCC is also connected to the second diode LED2 to ground through the first resistor R1 and the second resistor R2. Preferably, the first resistor R1 and the second resistor R2 are also connected to the first capacitor C1 and grounded.

The second resistor R2 and the second diode LED2 are connected to the demodulator U2 through the third resistor R3 and the second capacitor C2.

The operational amplifier U1 is grounded and the power supply VCC at the same time, and is connected to the demodulator U2 through the third capacitor C3. The demodulator U2 is also grounded through the fourth capacitor C4 and the fifth capacitor C5 connected in parallel, and grounded through the fifth resistor R4 and the sixth capacitor C6 connected in series, and the fifth resistor R4 and the sixth capacitor C6 are connected to the ground. The demodulator U2 is connected.

When the washing machine with clothes-drying reminding function of the present invention is working, the first diode emits infrared rays, and the second diode receives infrared signals. The demodulator has a setting terminal, and the frequency can be changed by adjusting its external variable resistor. When the carrier signal is consistent with the frequency, the anti-interference characteristics can be improved. When the received infrared carrier signal is consistent with the frequency, it means that it is not interference, then output low level. After the infrared signal is reflected, the reflected light is received by the third diode, and the signal is amplified by the parallel negative feedback amplifier circuit composed of the RC filter circuit and the operational amplifier, and the square wave of the output frequency is sent to the demodulator for demodulation. Then it is converted into a digital signal output by its internal comparator.

Based on the precise detection of the detection circuit, the washing machine with the clothes-drying reminder function of the present invention can accurately give an alarm according to the detection result, and can synchronously and remotely notify the user to hang the clothes.

Specifically, the controller controls the buzzer to work periodically according to the set buzzing duration according to the detection signal sent by the detection circuit 2 . Among them, the working cycle and the beeping duration can be set according to the needs. For example, the first cycle can be set to 10 minutes. After 10 minutes, trigger the buzzer to work, and the buzzer will start beeping to remind; the beeping time can be set to 1 minute. The buzzer will beep again every 5 minutes to remind.

Further, the infrared probe 4 is arranged on the operating panel of the washing machine, so that when the infrared probe 4 senses that the user appears in front of the washing machine and the clothes are just in the state of being washed and not taken out, the controller according to the infrared The signal sent by the probe 4 controls the buzzer to work.

In addition, the controller controls the wireless module 5 to perform remote communication with the user's mobile phone according to the detection signal sent by the detection circuit 2, so as to realize synchronous remote notification to the user to hang clothes.

To sum up, the washing machine with laundry reminder function of the present invention has good versatility and high precision, can accurately detect the clothes inside the washing machine, and avoids the problems of misjudgment and false alarm in the prior art. At the same time, the washing machine with the clothes-drying reminder function of the present invention can accurately give an alarm according to the detection result, and can synchronously and remotely notify the user to hang the clothes.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. a kind of washing machine with the clothing prompting function that dries in the air, it is characterised in that the washing machine includes：Inner cylinder, outer barrel, detection electricity Road, buzzer, infrared probe, wireless module and controller；

The inner cylinder is contained in the outer barrel, and the detection circuit is integrally disposed on the inwall of the outer barrel, the detection Circuit transmits with the controller signals, and the controller controls the buzzer and wireless module to carry out according to the signal of reception Work, the infrared probe carry out signal transmission with the controller, and the controller controls institute according to the infrared signal of reception Buzzer is stated to be operated；

The detection circuit includes：Power supply, the first diode, the second diode, the 3rd diode, triode, first resistor, Two resistance, 3rd resistor, the 4th resistance, amplifier, demodulator；

The output all the way of the power supply is connected by first diode and triode with the demodulator, the power supply Another way output is connected by first resistor, second resistance, 3rd resistor, the second diode with the amplifier, the amplifier It is connected simultaneously with the demodulator, negative pole of the demodulator through the 3rd diode is connected with lead-out terminal, described Positive pole of the demodulator through the 3rd diode is connected by the 4th resistance with the power supply.

2. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the controller is according to institute The detection signal that detection circuit is sent is stated, controls the buzzer to be worked periodically according to the buzzing duration of setting.

3. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the controller is according to institute The signal of infrared probe transmission is stated, controls the buzzer to be operated.

4. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the controller is according to institute The detection signal that detection circuit is sent is stated, controls the wireless module to carry out telecommunication with user mobile phone.

5. according to claim 1 have the washing machine of clothing prompting function of drying in the air, it is characterised in that the power supply and described the Rheostat is additionally provided between one diode, the power supply passes through rheostat and the colelctor electrode of the first diode and the triode It is connected, the grounded emitter of the triode, base stage is connected by current-limiting resistance with the demodulator.

6. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the another way of the power supply Output also connects second diode by first resistor, second resistance and is grounded, and the first resistor, second resistance are also connected with the One electric capacity is simultaneously grounded.

7. according to claim 1 have the washing machine of clothing prompting function of drying in the air, it is characterised in that the second resistance and the Pass through 3rd resistor, the second capacitance connection to the demodulator between two diodes.

8. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the amplifier is grounded simultaneously With power supply, and it is connected by the 3rd electric capacity with the demodulator.

9. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the demodulator also passes through 4th electric capacity and the capacity earths of five in parallel, by the 5th resistance of series connection and the 6th capacity earth, the 5th resistance And the 6th be connected with the demodulator between electric capacity.

10. the washing machine with the clothing prompting function that dries in the air according to claim 1, it is characterised in that the model of the amplifier For LM6364, the model LM231 of the demodulator.