Control circuit of heatable washing machine

Abstract

The utility model provides a control circuit capable of heating a washing machine, which comprises a water level detection unit, a main control unit, a temperature detection unit, a barrel collision unit, a photoelectric switch unit and a load unit, and is characterized in that the load unit comprises a load driving module and a load module; the load driving module is respectively connected with the main control unit and the load module, the load module comprises a reminding sub-module, a heating sub-module and a valve sub-module, and the reminding sub-module, the heating sub-module and the valve sub-module are all connected with the load driving module; the washing machine has the advantages that water in the washing machine can be heated by the heating module, clothes can be cleaned more cleanly under the action of warm water, and the warm water can increase activity of a detergent and enhance washing and decontamination effects, has a sterilization effect and is convenient to use. The temperature detection unit can detect the temperature of water in the washing machine, so that the temperature in the washing machine can be known at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machines, in particular to a control circuit capable of heating a washing machine. Background Art

[0002] A washing machine is a machine for washing clothes. A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. It is divided into two categories: household and collective use according to its rated washing capacity. However, existing washing machines are not equipped with heating devices and temperature detection devices, so clothes cannot be washed more cleanly. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a control circuit capable of heating a washing machine, so as to solve the problem that the prior art cannot wash clothes more cleanly.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] A control circuit of a heatable washing machine comprises a water level detection unit, a main control unit, a temperature detection unit, a barrel collision unit, a photoelectric switch unit and a load unit, wherein the main control unit is respectively connected to the water level detection unit, the temperature detection unit, the barrel collision unit and the load unit, wherein the load unit comprises a load driving module and a load module, wherein the load driving module is respectively connected to the main control unit and the load module, wherein the load module comprises a reminder submodule, a heating submodule and a valve submodule, wherein the reminder submodule, the heating submodule and the valve submodule are all connected to the load driving module, and the heating submodule is also connected to the valve submodule.

[0006] In one embodiment of the utility model, it also includes a display panel interface unit, a WIFI interface unit, a water pump unit, a disinfection unit and a power supply unit for providing power to each unit, and the main control unit is also connected to the display panel interface unit, the WIFI interface unit, the water pump unit and the disinfection unit respectively.

[0007] In one embodiment of the utility model, the main control unit includes a main control chip, the control end of the main control chip is connected to the water level detection unit, the control end of the main control chip is connected to the temperature detection unit, the control end of the main control chip is connected to the barrel collision unit, seven control ends of the main control chip are connected to the load unit, two control ends of the main control chip are connected to the display panel interface unit, two control ends of the main control chip are connected to the WIFI interface unit, the control end of the main control chip is connected to the water pump unit, and the control end of the main control chip is connected to the disinfection unit.

[0008] In one embodiment of the utility model, the water level detection unit includes a water level detection control chip and a thirty-second resistor, and the control end of the water level detection control chip is connected to the main control unit through the thirty-second resistor; the temperature detection unit includes a second connector and a third resistor, and the first pin of the second connector is connected to the main control unit through the third resistor.

[0009] In one embodiment of the utility model, the crash barrel unit includes a third connector, a twelfth resistor and a sixth capacitor, and the first pin of the third connector is connected to the main control unit through the twelfth resistor; the photoelectric switch unit includes an optocoupler and an eighteenth resistor, the second pin of the optocoupler is connected to one end of the eighteenth resistor, the other end of the eighteenth resistor is a signal input end, and the third pin of the optocoupler is a signal output end.

[0010] In one embodiment of the utility model, the load driving module includes a load driving chip, seven control ends of the load driving chip are connected to the main control unit, the control end of the load driving chip is connected to the reminder sub-module, the control end of the load driving chip is connected to the heating sub-module, and five control ends of the load driving chip are connected to the valve sub-module.

[0011] In one embodiment of the utility model, the reminder submodule includes a buzzer, one end of which is connected to the load driving module; the heating submodule includes a diode, a switch relay and a heater, the positive electrode of the diode is connected to the load driving module, the third pin of the switch relay is connected to the heater, and the fourth pin of the switch relay is connected to the valve submodule; the valve submodule includes two valve submodule circuits, and the valve submodule circuit includes an eleventh capacitor, a thirteenth capacitor, a fifteenth resistor and a seventeenth resistor, the negative electrode of the eleventh capacitor is connected to the load driving module through the fifteenth resistor, and the negative electrode of the thirteenth capacitor is connected to the load driving module through the seventeenth resistor.

[0012] In one embodiment of the utility model, the display panel interface unit includes a first interface, a seventh resistor and a fifth resistor, and the second pin and the third pin of the first interface are connected to the main control unit through the seventh resistor and the fifth resistor respectively; the WIFI interface unit includes a second interface, a tenth resistor and an eighth resistor, and the second pin and the third pin of the second interface are connected to the main control unit through the tenth resistor and the eighth resistor respectively.

[0013] In one embodiment of the utility model, the water pump unit includes a first transistor and a second resistor, and the base of the first transistor is connected to the main control unit through the second resistor; the disinfection module includes a second transistor and a ninth resistor, and the base of the second transistor is connected to the main control unit through the ninth resistor.

[0014] As described above, the control circuit of the utility model capable of heating a washing machine has the following beneficial effects:

[0015] The heating module in the utility model can heat the water in the washing machine, and the clothes can be washed more cleanly under the action of warm water, because warm water can increase the activity of detergent, enhance the effect of washing and decontamination, and also has a sterilization effect. The temperature detection unit can detect the temperature of the water in the washing machine, so that the temperature inside the washing machine can be known at all times, and when the washing is about to be completed, if the temperature inside the washing machine is still too high, the main control unit can control the water pump to suck cold water into the washing machine, so that the inside of the washing machine can be cooled down, so that the discharged water is cooling water, avoiding the situation where the hot water causes damage to the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is the overall structural block diagram disclosed in the embodiment of the utility model;

[0017] Figure 2 The display is a schematic diagram of the main control unit circuit disclosed in the embodiment of the utility model;

[0018] Figure 3 Shown is a circuit schematic diagram of a water level detection unit disclosed in an embodiment of the utility model;

[0019] Figure 4 Shown is a circuit schematic diagram of a temperature detection unit disclosed in an embodiment of the utility model;

[0020] Figure 5 Shown is a circuit schematic diagram of a barrel collision unit disclosed in an embodiment of the utility model;

[0021] Figure 6 The display is a schematic diagram of the circuit of the photoelectric switch unit disclosed in the embodiment of the utility model;

[0022] Figure 7 Shown is a circuit schematic diagram of a load driving module disclosed in an embodiment of the utility model;

[0023] Figure 8 Shown is a schematic diagram of the circuit of the reminder submodule disclosed in the embodiment of the utility model;

[0024] Fig. 9 Shown is a circuit schematic diagram of a heating submodule and a valve submodule disclosed in an embodiment of the utility model;

[0025] Fig.10 The display is a schematic diagram of the circuit of the display panel interface unit disclosed in the embodiment of the utility model;

[0026] Fig.11 Shown is a schematic diagram of the WIFI interface unit circuit disclosed in the embodiment of the utility model;

[0027] Fig.12 Shown is a circuit schematic diagram of a water pump unit disclosed in an embodiment of the utility model;

[0028] Fig.13 Shown is a schematic diagram of the disinfection unit circuit disclosed in the embodiment of the utility model;

[0029] Fig.14 Shown is a schematic diagram of a power supply unit circuit disclosed in an embodiment of the present utility model. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0031] See also Figure 1 The utility model provides a control circuit of a heated washing machine, including: a main control unit, a water level detection unit, a temperature detection unit, a barrel collision unit, a photoelectric switch unit, a load unit, a display panel interface unit, a WIFI interface unit, a water pump unit, a disinfection unit and a power supply unit for providing power to each unit.

[0032] See also Figure 2 The main control unit includes a main control chip and other components. In this embodiment, the model of the main control chip is APT32F1023. The main control chip U1 is selected as an example for explanation below.

[0033] The fourth pin of the main control chip U1 is one of the control ends, the fourth pin of the main control chip U1 is connected to the water level detection unit, the sixth pin of the main control chip U1 is one of the control ends, the sixth pin of the main control chip U1 is connected to the temperature detection unit, the fifth pin of the main control chip U1 is one of the control ends, the fifth pin of the main control chip U1 is connected to the barrel collision unit, the seventh pin to the thirteenth pin of the main control chip U1 are seven of the control ends, the seventh pin to the thirteenth pin of the main control chip U1 are all connected to the load unit, the fifteenth pin and the sixteenth pin of the main control chip U1 are two of the control ends ... The pins are connected to the display panel interface unit, the nineteenth pin and the twentieth pin of the main control chip U1 are two of the control ends, the nineteenth pin and the twentieth pin of the main control chip U1 are both connected to the WIFI interface unit, the seventeenth pin of the main control chip U1 is one of the control ends, the seventeenth pin of the main control chip U1 is connected to the water pump unit, the eighteenth pin of the main control chip U1 is one of the control ends, and the eighteenth pin of the main control chip U1 is connected to the disinfection unit, wherein the main control unit can control the water level detection unit, the temperature detection unit, the barrel collision unit, the load unit, the display panel interface unit, the WIFI interface unit, the water pump unit and the disinfection unit.

[0034] See also Figure 3 and Figure 4 The water level detection unit includes a water level detection control chip, a first connector and other components, and the temperature detection unit includes a second connector and other components. The model of the water level detection chip in this embodiment is TC4069. The water level detection control chip IC2, the first connector CN12 and the second connector CN3 are selected as examples for explanation.

[0035] The first pin of the water level detection control chip IC2 is respectively connected to the positive electrode of the nineteenth capacitor C19 and the twentieth capacitor C20, the negative electrode of the nineteenth capacitor C19 is grounded, the twentieth capacitor C20 is connected to the second pin of the first connector CN12 through the twenty-sixth resistor R26, the second pin and the third pin of the water level detection control chip IC2 are both connected to the positive electrode of the twentieth capacitor C20 through the thirtieth resistor R30, the fourth pin and the fifth pin of the water level detection control chip IC2 are both connected to the second pin of the first connector CN12 through the twenty-ninth resistor R29, the sixth pin of the water level detection control chip IC2 is respectively connected to the main control unit and the positive electrode of the twenty-fifth capacitor C25 through the thirty-second resistor R32, the negative electrode of the twenty-fifth capacitor C25 and the first pin of the first connector CN12 are both grounded, wherein the first connector CN12 is also connected to the water level sensor, the water level sensor is installed in the washing machine, and the water level sensor can detect the water level in the washing machine.

[0036] The first pin of the second connector CN3 is connected to the first voltage source through the fourth resistor R4, and the first pin of the second connector CN3 is also connected to the main control unit and the positive electrode of the second capacitor C2 through the third resistor R3, and the negative electrode of the second capacitor C2 and the second pin of the second connector CN3 are both grounded, wherein the second connector CN3 is also connected to the temperature sensor, which can detect the temperature of water in the washing machine.

[0037] See also Figures 5 to 6 The barrel collision unit includes a third connector and other components, and the photoelectric switch unit includes an optical coupler and other components. The third connector CN6 and the optical coupler CN8 are selected as examples for explanation below.

[0038] The first pin of the third connector CN6 is grounded through the thirteenth resistor R13, and the first pin of the third connector CN6 is also connected to the main control unit and the positive electrode of the sixth capacitor C6 respectively through the twelfth resistor R12, the negative electrode of the sixth capacitor C6 is grounded, and the second pin of the third connector CN6 is connected to the second voltage source through the eleventh resistor R11, wherein the third connector CN6 is also connected to the barrel bumping switch, which is installed on the inner wall of the outer barrel of the washing machine. When the inner barrel shakes severely, it will collide with the barrel bumping switch. When the barrel bumping switch is touched, there will be a change in level, and then the barrel bumping switch sends the electrical signal to the main control unit, and the main control unit will adjust the balance of the inner barrel when receiving the electrical signal.

[0039] The first pin of the optocoupler CN8 is grounded, the second pin of the optocoupler CN8 is connected to one end of the eighteenth resistor R18, the other end of the eighteenth resistor R18 is the signal input end, the third pin of the optocoupler CN8 is the signal output end, the third pin of the optocoupler CN8 is also connected to the third voltage source through the nineteenth resistor R19, and the fourth pin of the optocoupler CN8 is grounded. The photoelectric switch unit adopts an angle sensor, and utilizes the characteristics of the sensor function to place it normally horizontally (simulating the normal closed state of the door cover). At this time, the signal given to the single-chip microcomputer is always in the pull-up 5V state. The safety door cover will trigger the sensor when it is opened to a certain angle. At this time, the signal given to the single-chip microcomputer is in the pull-down 0V state, thereby realizing the detection of the safety switch. This technology perfectly solves the problems of small space and high cost of desktop washing machines in the current market.

[0040] See also Figure 1 The load unit includes a load driving module and a load module, and the load module includes a reminder submodule, a heating submodule and a valve submodule.

[0041] See also Figures 7 to 9The load driving module includes a load driving chip, the reminder submodule includes a buzzer and other components, the heating submodule includes a diode, a switch relay and a heater, the valve submodule includes two valve submodule circuits and other peripheral circuits, the valve submodule circuit includes a first transient suppression diode, a second transient suppression diode, a fourth connector and other components. The following selects the load driving chip IC1, the buzzer BUZ1, the first resistor R1, the diode D1, the switch relay K1, the heater CN7, the first transient suppression diode TR1, the second transient suppression diode TR2 and the fourth connector CN9 as an example for explanation.

[0042] The first to seventh pins of the load driving chip IC1 are seven control terminals, the first to seventh pins of the load driving chip IC1 are all connected to the main control unit, the sixteenth pin of the load driving chip IC1 is connected to the reminder sub-module, the fifteenth pin of the load driving chip IC1 is connected to the heating sub-module, the tenth to fourteenth pins of the load driving chip IC1 are five control terminals, the tenth to fourteenth pins of the load driving chip IC1 are all connected to the valve sub-module, wherein the load driving module is used to control the reminder sub-module, the heating sub-module and the valve sub-module.

[0043] One end of the buzzer BUZ1 is connected to the fourth voltage source, the other end of the buzzer BUZ1 is connected to the load driving module, and the two ends of the buzzer BUZ1 are connected to the two ends of the first resistor R1, wherein the buzzer BUZ1 reminds the user by making a buzzing sound; the first pin and the second pin of the switch relay K1 are respectively connected to the cathode and anode of the diode D1, the anode of the diode D1 is connected to the load driving module, the cathode of the diode D1 is connected to the fifth voltage source, the third pin of the switch relay K1 is connected to the heater CN7, and the fourth pin of the switch relay K1 is connected to the valve sub-module, wherein the heater CN7 can heat the water in the washing machine and can heat the temperature in the washing machine to 85 degrees or 90 degrees, and the clothes can be washed cleaner under the action of warm water.

[0044] The first pins of the first transient suppression diode TR1 and the second transient suppression diode TR2 are respectively connected to the second pin and the first pin of the fourth connector CN9, the second pin and the third pin of the first transient suppression diode TR1 are respectively connected to the negative electrode and the positive electrode of the eleventh capacitor C11, and the negative electrode of the eleventh capacitor C11 is connected to the load driving module through the fifteenth resistor R15, the second pin and the third pin of the second transient suppression diode TR2 are respectively connected to the negative electrode and the positive electrode of the thirteenth capacitor C13, and the negative electrode of the thirteenth capacitor C13 is connected to the load driving module through the seventeenth resistor R17, wherein the fourth connector CN9 is also connected to the valve, and the load driving module can control the opening and closing of the valve, thereby controlling the speed of water flowing in and out.

[0045] See also Fig.10 and Fig.11 The display panel interface unit includes a first interface and other components, and the WIFI interface unit includes a second interface and other components. The first interface CN2 and the second interface CN4 are taken as examples for explanation.

[0046] The first pin of the first interface CN2 is grounded, the second pin and the third pin of the first interface CN2 are connected to the main control unit through the seventh resistor R7 and the fifth resistor R5 respectively, the second pin and the third pin of the first interface CN2 are connected to the positive electrodes of the fourth capacitor C4 and the third capacitor C3 through the seventh resistor R7 and the fifth resistor R5 respectively, the negative electrodes of the fourth capacitor C4 and the third capacitor C3 are grounded, and the fourth pin of the first interface is connected to the sixth voltage source; the first pin of the second interface CN4 is connected to the seventh voltage source, the second pin and the third pin of the second interface CN4 are connected to the main control unit through the tenth resistor R10 and the eighth resistor R8 respectively, and the fourth pin of the second interface CN4 is grounded.

[0047] See also Fig.12 and Fig.13 The water pump unit includes a field effect tube, a fifth connector, a first transistor and other components, and the disinfection module includes a sixth connector, a second transistor and other components. The field effect tube QS1, the fifth connector CN1, the first transistor Q1, the sixth connector CN5 and the second transistor Q3 are selected as examples for explanation.

[0048] The gate of the field effect transistor QS1 is connected to the source of the field effect transistor QS1 and to the eighth voltage source through the sixtieth resistor R60, the gate of the field effect transistor QS1 is also connected to the collector of the first transistor Q1, the base of the first transistor Q1 is connected to the main control unit through the second resistor R2, the emitter of the first transistor Q1 is grounded, the drain of the field effect transistor QS1 is connected to the second pin of the fifth connector CN1 through the sixty-first resistor R61, the first pin of the fifth connector CN1 is grounded, wherein the fifth connector CN1 is also connected to the water pump, the water pump is installed in the washing machine, and the main control unit can suck cold water into the washing machine by controlling the water pump.

[0049] The base of the second transistor Q3 is connected to the main control unit through the ninth resistor R9, the collector of the second transistor Q3 is connected to the first pin of the sixth connector CN5, the emitter of the second transistor Q3 is grounded, and the second pin of the sixth connector CN5 is connected to the ninth voltage source, wherein the sixth connector CN5 is also connected to the ultraviolet disinfection lamp, which is installed in the washing machine, and the ultraviolet disinfection lamp can disinfect the interior of the washing machine and the clothes inside the washing machine.

[0050] The heating module in the utility model can heat the water in the washing machine, and the clothes can be washed more cleanly under the action of warm water, because warm water can increase the activity of detergent, enhance the effect of washing and decontamination, and also has a sterilization effect. The temperature detection unit can detect the temperature of the water in the washing machine, so that the temperature inside the washing machine can be known at all times, and when the washing is about to be completed, if the temperature inside the washing machine is still too high, the main control unit can control the water pump to suck cold water into the washing machine, so that the inside of the washing machine can be cooled down, so that the discharged water is cooling water, avoiding the situation where the hot water causes damage to the water pipe.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A control circuit for a heating washing machine, comprising a water level detection unit, characterized in that: It also includes a main control unit, a temperature detection unit, a barrel collision unit, a photoelectric switch unit and a load unit, wherein the main control unit is respectively connected to the water level detection unit, the temperature detection unit, the barrel collision unit and the load unit, wherein the load unit includes a load driving module and a load module, wherein the load driving module is respectively connected to the main control unit and the load module, wherein the load module includes a reminder submodule, a heating submodule and a valve submodule, wherein the reminder submodule, the heating submodule and the valve submodule are all connected to the load driving module, and the heating submodule is also connected to the valve submodule.

2. A control circuit for a heatable washing machine according to claim 1, characterized in that: It also includes a display panel interface unit, a WIFI interface unit, a water pump unit, a disinfection unit and a power supply unit for providing power to each unit. The main control unit is also connected to the display panel interface unit, the WIFI interface unit, the water pump unit and the disinfection unit respectively.

3. A control circuit for a heatable washing machine according to claim 2, characterized in that: The main control unit includes a main control chip, the control end of the main control chip is connected to the water level detection unit, the control end of the main control chip is connected to the temperature detection unit, the control end of the main control chip is connected to the barrel collision unit, seven control ends of the main control chip are connected to the load unit, two control ends of the main control chip are connected to the display panel interface unit, two control ends of the main control chip are connected to the WIFI interface unit, the control end of the main control chip is connected to the water pump unit, and the control end of the main control chip is connected to the disinfection unit.

4. A control circuit for a heatable washing machine according to claim 1, characterized in that: The water level detection unit includes a water level detection control chip and a thirty-second resistor, and the control end of the water level detection control chip is connected to the main control unit through the thirty-second resistor; the temperature detection unit includes a second connector and a third resistor, and the first pin of the second connector is connected to the main control unit through the third resistor.

5. A control circuit for a heatable washing machine according to claim 1, characterized in that: The crash barrel unit includes a third connector, a twelfth resistor and a sixth capacitor, and the first pin of the third connector is connected to the main control unit through the twelfth resistor; the photoelectric switch unit includes an optical coupler and an eighteenth resistor, the second pin of the optical coupler is connected to one end of the eighteenth resistor, the other end of the eighteenth resistor is a signal input end, and the third pin of the optical coupler is a signal output end.

6. A control circuit for a heatable washing machine according to claim 1, characterized in that: The load driving module includes a load driving chip, seven control ends of the load driving chip are connected to the main control unit, the control end of the load driving chip is connected to the reminder submodule, the control end of the load driving chip is connected to the heating submodule, and five control ends of the load driving chip are connected to the valve submodule.

7. A control circuit for a heatable washing machine according to claim 1, characterized in that: The reminder submodule includes a buzzer, one end of which is connected to the load driving module; the heating submodule includes a diode, a switch relay and a heater, the positive electrode of the diode is connected to the load driving module, the third pin of the switch relay is connected to the heater, and the fourth pin of the switch relay is connected to the valve submodule; the valve submodule includes two valve submodule circuits, and the valve submodule circuit includes an eleventh capacitor, a thirteenth capacitor, a fifteenth resistor and a seventeenth resistor, the negative electrode of the eleventh capacitor is connected to the load driving module through the fifteenth resistor, and the negative electrode of the thirteenth capacitor is connected to the load driving module through the seventeenth resistor.

8. A control circuit for a heatable washing machine according to claim 2, characterized in that: The display panel interface unit includes a first interface, a seventh resistor and a fifth resistor, and the second pin and the third pin of the first interface are connected to the main control unit through the seventh resistor and the fifth resistor respectively; the WIFI interface unit includes a second interface, a tenth resistor and an eighth resistor, and the second pin and the third pin of the second interface are connected to the main control unit through the tenth resistor and the eighth resistor respectively.

9. A control circuit for a heatable washing machine according to claim 2, characterized in that: The water pump unit includes a first transistor and a second resistor, and the base of the first transistor is connected to the main control unit through the second resistor; the disinfection module includes a second transistor and a ninth resistor, and the base of the second transistor is connected to the main control unit through the ninth resistor.

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