Control circuit capable of drying washing machine

Abstract

The utility model provides a control circuit capable of drying a washing machine, which comprises a main control unit, a fan unit, an air inlet temperature detection unit, an air outlet temperature detection unit, an automatic putting pump unit and a liquid level detection unit, the main control unit is respectively connected with the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic putting pump unit and the liquid level detection unit, and the main control unit comprises a first main control module and a second main control module; the washing machine has the advantages that the fan unit can dry washed clothes, so that the washed clothes do not need to be aired, a user can directly wear the washed clothes, the automatic putting pump unit can automatically put washing liquid into a drum of the washing machine, and the washing machine is convenient to use. A user does not need to put the washing liquid, and the liquid level detection unit can detect the liquid level of the washing liquid, so that the user can be reminded to add the washing liquid by himself or herself under the condition that the washing liquid is not much.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machines, in particular to a control circuit capable of drying 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. According to its rated washing capacity, it is divided into two categories: household use and collective use. However, existing washing machines only have washing and dehydration functions, and the dehydrated clothes need to be aired before they can be worn by users. Therefore, existing washing machines cannot dry clothes, and users cannot wear clothes directly after washing. Moreover, there is no liquid level detection device for detecting the liquid level of the detergent in the existing washing machines, which is inconvenient for users to use. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a control circuit capable of drying a washing machine, so as to solve the problem that the prior art does not have a drying function.

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

[0005] A control circuit for a drying washing machine comprises: a main control unit, a fan unit, an air inlet temperature detection unit, an air outlet temperature detection unit, an automatic delivery pump unit and a liquid level detection unit, wherein the main control unit is respectively connected to the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic delivery pump unit and the liquid level detection unit, wherein the main control unit comprises a first main control module and a second main control module, and the first main control module is respectively connected to the second main control module, the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic delivery pump unit and the liquid level detection unit.

[0006] In one embodiment of the utility model, it also includes a lighting unit, a display interface unit, a motor drive unit connected to the motor, a load unit and a power supply unit for providing power to each unit. The first main control module is also connected to the lighting unit, and the second main control module is respectively connected to the display interface unit, the motor drive unit and the load unit.

[0007] In one embodiment of the utility model, the first main control module includes a first main control chip, the second main control module includes a second main control chip, two control ends of the first main control chip are connected to the second main control module, the control end of the first main control chip is connected to the fan unit, the control end of the first main control chip is connected to the air inlet temperature detection unit, the control end of the first main control chip is connected to the air outlet temperature detection unit, the control end of the first main control chip is connected to the automatic delivery pump unit, the control end of the first main control chip is connected to the liquid level detection unit, and the control end of the first main control chip is connected to the lighting unit;

[0008] Two control ends of the second main control chip are connected to the first main control module, two control ends of the second main control chip are connected to the display interface unit, two control ends of the second main control chip are connected to the motor drive unit, and six control ends of the second main control chip are connected to the load unit.

[0009] In one embodiment of the utility model, the fan unit includes a second transistor, and the base of the second transistor is connected to the first main control module; the air inlet temperature detection unit includes a second connector and a sixty-ninth resistor, and the second pin of the second connector is connected to the first main control module through the sixty-ninth resistor; the air outlet temperature detection unit includes a third connector and a seventy-first resistor, and the second pin of the third connector is connected to the first main control module through the seventy-first resistor.

[0010] In one embodiment of the utility model, the automatic dispensing pump unit includes a fourth transistor, the base of which is connected to the first main control module; the liquid level detection unit includes a fifth connector and a sixty-seventh resistor, and the second pin of the fifth connector is connected to the first main control module through the sixty-seventh resistor.

[0011] In one embodiment of the utility model, the lighting unit includes a sixth connector and a fifty-eighth resistor, and the second pin of the sixth connector is connected to the first main control module through the fifty-eighth resistor; the display interface unit includes a seventh connector, a sixth resistor and a seventh resistor, and the second pin and the third pin of the seventh connector are connected to the second main control module through the sixth resistor and the seventh resistor respectively; the motor drive unit includes an eighth connector, a fifth transistor and a thirteenth resistor, the base of the fifth transistor is connected to the second main control module, and the fifth pin of the eighth connector is connected to the second main control module through the thirteenth resistor.

[0012] In one embodiment of the utility model, the load unit includes a load driving module and a load module, the load driving module is respectively connected to the second main control module and the load module, the load driving module includes a load driving chip, six control ends of the load driving chip are connected to the second main control module, and four control ends of the load driving chip are connected to the load module.

[0013] In one embodiment of the utility model, the load module includes a fourth diode, a fourteenth diode, a seventh diode and an eighth diode, the anode of the fourth diode is connected to the load driving module, the anode of the fourteenth diode is connected to the load driving module, the anode of the seventh diode is connected to the load driving module, and the anode of the eighth diode is connected to the load driving module.

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

[0015] The fan unit in the utility model can dry the washed clothes, so that the washed clothes do not need to be hung out to dry, and the user can wear the clothes directly after washing. The automatic pump unit can automatically dispense detergent into the drum of the washing machine without the need for the user to dispense detergent. The liquid level detection unit can detect the liquid level of the detergent, so as to remind the user to add detergent by himself when the detergent is insufficient. 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 circuit schematic diagram of the first main control module disclosed in the embodiment of the utility model;

[0018] Figure 3 The display is a circuit schematic diagram of the second main control module disclosed in the embodiment of the utility model;

[0019] Figure 4 The display is a schematic diagram of the fan unit circuit disclosed in the embodiment of the utility model;

[0020] Figure 5 Shown is a circuit schematic diagram of an air inlet temperature detection unit disclosed in an embodiment of the utility model;

[0021] Figure 6 Shown is a circuit schematic diagram of an air outlet temperature detection unit disclosed in an embodiment of the utility model;

[0022] Figure 7 Shown is a circuit schematic diagram of an automatic delivery pump unit disclosed in an embodiment of the utility model;

[0023] Figure 8 Shown is a circuit schematic diagram of a liquid level detection unit disclosed in an embodiment of the utility model;

[0024] Fig. 9 Shown is a schematic diagram of a lighting unit circuit disclosed in an embodiment of the utility model;

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

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

[0027] Fig.12 Shown is a circuit schematic diagram of a load driving module disclosed in an embodiment of the utility model;

[0028] Fig.13 Shown is a schematic diagram of a load module circuit disclosed in an 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 drying washing machine, comprising: a main control unit, a fan unit, an air inlet temperature detection unit, an air outlet temperature detection unit, an automatic dispensing pump unit and a liquid level detection unit, and also comprises a lighting unit, a display interface unit, a motor drive unit connected to a motor, a load unit and a power supply unit for providing power to each unit, wherein the main control unit comprises a first main control module and a second main control module.

[0032] See also Figure 2 and Figure 3 The first main control module includes a first main control chip and other components, and the second main control module includes a second main control chip and other components. In this embodiment, the models of the first main control chip and the second main control chip are both APT32F1023H8S6. The first main control chip U2 and the second main control chip U3 are selected as examples for explanation.

[0033] The nineteenth pin and the twentieth pin of the first main control chip U2 are two control ends, the nineteenth pin and the twenty-first pin of the first main control chip U2 are both connected to the second main control module, the sixteenth pin of the first main control chip U2 is one of the control ends, the sixteenth pin of the first main control chip U2 is connected to the fan unit, the sixth pin of the first main control chip U2 is one of the control ends, the sixth pin of the first main control chip U2 is connected to the air inlet temperature detection unit, the fifth pin of the first main control chip U2 is one of the control ends, and the fifth pin of the first main control chip U2 is connected to the air outlet temperature detection unit The fourteenth pin of the first main control chip U2 is one of the control ends, the fourteenth pin of the first main control chip U2 is connected to the automatic delivery pump unit, the eighth pin of the first main control chip U2 is one of the control ends, the eighth pin of the first main control chip U2 is connected to the liquid level detection unit, the tenth pin of the first main control chip U2 is one of the control ends, and the tenth pin of the first main control chip U2 is connected to the lighting unit, wherein the first main control module can control the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic delivery pump unit, the liquid level detection unit and the lighting unit.

[0034] The seventeenth pin and the eighteenth pin of the second main control chip U3 are two of the control ends, the seventeenth pin and the eighteenth pin of the second main control chip U3 are both connected to the first main control module, the nineteenth pin and the twentieth pin of the second main control chip U3 are two of the control ends, the nineteenth pin and the twenty-first pin of the second main control chip U3 are both connected to the display interface unit, the tenth pin and the eleventh pin of the second main control chip U3 are two of the control ends, the tenth pin and the eleventh pin of the second main control chip U3 are both connected to the motor drive unit, the ninth pin and the twelfth pin to the sixteenth pin of the second main control chip U3 are six of the control ends, the ninth pin and the twelfth pin to the sixteenth pin of the second main control chip U3 are all connected to the load unit, wherein the second main control module can control the display interface unit, the motor drive unit and the load unit.

[0035] See also Figures 4 to 6 The fan unit includes a first field effect tube, a first transistor, a second transistor, a first connector and other components, the air inlet temperature detection unit includes a second connector and other components, and the air outlet temperature detection unit includes a third connector and other components. The first field effect tube Q12, the first transistor Q16, the second transistor Q17, the first connector CN9, the second connector CN11 and the third connector CN13 are selected as examples for explanation.

[0036] The gate of the first field effect transistor Q12 is connected to the collector of the first transistor Q16 through the sixty-third resistor R63, the drain of the first field effect transistor Q12 is respectively connected to the second pin of the first connector CN9 and the positive electrode of the twelfth diode D12, the first pin of the first connector CN9 and the negative electrode of the twelfth diode D12 are both connected to the first voltage source, the base of the first transistor Q16 is connected to the collector of the second transistor Q17 through the sixty-fifth resistor R65, and the base of the second transistor Q17 is connected to the first main control module, wherein the first connector CN9 is also connected to the fan, which is installed in the washing machine. The fan can dry the washed clothes, so that the washed clothes do not need to be hung out to dry, so that the user can put on the clothes directly after washing.

[0037] The second pin of the second connector CN11 is connected to the second voltage source through the sixty-eighth resistor R68, the second pin of the second connector CN11 is respectively connected to the first main control module and the positive electrode of the thirty-fourth capacitor C34 through the sixty-ninth resistor R69, and the first pin of the second connector CN11 and the negative electrode of the thirty-fourth capacitor C34 are both grounded; the second pin of the third connector CN13 is connected to the third voltage source through the seventieth resistor R70, the second pin of the third connector CN13 is respectively connected to the first main control module and the positive electrode of the thirty-fifth capacitor C35 through the seventy-first resistor R71, and the first pin of the third connector CN13 and the negative electrode of the thirty-fifth capacitor C35 are both grounded, wherein the air inlet temperature detection unit and the air outlet temperature detection unit both adopt AD detection technology, which can judge the temperature of the air inlet and the air outlet in real time, and the main control unit can obtain the moisture content of the clothes through the detected temperature.

[0038] See 7 and Figure 8 The automatic dispensing pump unit includes a second field effect transistor, a third transistor, a fourth transistor, a fourth connector and other components, and the liquid level detection unit includes a fifth connector and other components. The second field effect transistor Q13, the third transistor Q14, the fourth transistor Q15, the fourth connector CN8 and the fifth connector CN10 are selected as examples for explanation.

[0039] The gate of the second field effect transistor Q13 is connected to the collector of the third transistor Q14 through the fifteenth resistor R15, the drain of the second field effect transistor Q13 is respectively connected to the second pin of the fourth connector CN8 and the positive electrode of the thirteenth diode D13, the first pin of the fourth connector CN8 and the negative electrode of the thirteenth diode D13 are both connected to the fourth voltage source, the base of the third transistor Q14 is connected to the collector of the fourth transistor Q15 through the sixty-first resistor R61, and the base of the fourth transistor Q15 is connected to the first main control module, wherein the fourth connector CN8 is also connected to the delivery pump, which is installed in the washing machine. The delivery pump can deliver the detergent in the storage box into the drum of the washing machine, so that the user only needs to pour the detergent into the storage box, and does not need to pour the detergent into the drum of the washing machine every time the user washes clothes, thereby reducing the labor intensity of the user.

[0040] The second pin of the fifth connector CN10 is connected to the fifth voltage source through the sixty-sixth resistor R66, the second pin of the fifth connector CN10 is respectively connected to the first main control module and the positive electrode of the thirtieth capacitor C30 through the sixty-seventh resistor R67, the first pin of the fifth connector CN10 and the negative electrode of the thirtieth capacitor C30 are both grounded, wherein the liquid level detection unit uses AD detection technology and cleverly uses the conductivity of the washing liquid to determine the liquid level of the washing liquid, thereby reminding the user to add washing liquid by himself when the washing liquid is insufficient.

[0041] See also Figures 9 to 11 The lighting unit includes a sixth connector and other components, the display interface unit includes a seventh connector and other components, the motor drive unit includes an eighth connector, a fifth transistor and other components, and the sixth connector CN4, the seventh connector CN7, the eighth connector CN5 and the fifth transistor Q2 are selected as examples for explanation below.

[0042] The second pin of the sixth connector CN4 is connected to the first main control module and the positive electrode of the thirty-third capacitor C33 respectively through the fifty-eighth resistor R58, the first pin of the sixth connector CN4 and the negative electrode of the thirty-third capacitor C33 are both grounded, and the third pin of the sixth connector CN4 is connected to the sixth voltage source, wherein the sixth connector CN4 is also connected to the light strip, which serves as a lighting device.

[0043] The first pin of the seventh connector CN7 is connected to the seventh voltage source, the second pin and the third pin of the seventh connector CN7 are connected to the second main control module through the sixth resistor R6 and the seventh resistor R7 respectively, the second pin and the third pin of the seventh connector CN7 are connected to the positive electrodes of the thirty-first capacitor C31 and the thirty-second capacitor C32 through the sixth resistor R6 and the seventh resistor R7 respectively, and the fourth pin of the seventh connector CN7, the negative electrodes of the thirty-first capacitor C31 and the thirty-second capacitor C32 are all grounded.

[0044] The first pin of the eighth connector CN5 is connected to the eighth voltage source, the fourth pin of the eighth connector CN5 is connected to the collector of the fifth transistor Q2 through the fourth resistor R4, the base of the fifth transistor Q2 is connected to the second main control module, the fifth pin of the eighth connector CN5 is connected to the second main control module and the positive electrode of the twenty-ninth capacitor C29 through the thirteenth resistor R13 respectively, and the third pin of the eighth connector CN5 is connected to the negative electrode of the twenty-ninth capacitor C29.

[0045] See also Figure 1 , the load unit includes a load driving module and a load module.

[0046] See also Fig.12 The load driving module includes a load driving chip. The load driving chip IC1 is selected as an example for explanation below.

[0047] The first pin to the second pin and the fourth pin to the seventh pin of the load driving chip IC1 are six of the control terminals, and the first pin to the second pin and the fourth pin to the seventh pin of the load driving chip IC1 are all connected to the second main control module, and the eleventh pin, the twelfth pin, the fifteenth pin and the sixteenth pin of the load driving chip IC1 are four of the control terminals, and the eleventh pin, the twelfth pin, the fifteenth pin and the sixteenth pin of the load driving chip IC1 are all connected to the load module;

[0048] See also Fig.13 The load module includes the first to fourth switch relays, a ninth connector and other components. The first to fourth switch relays K1 to K4 and the ninth connector CN2 are taken as examples for explanation.

[0049] The first pin of the first switch relay K1 is respectively connected to the first pins of the fourth switch relay K4 and the third switch relay K3, and the second pin of the second switch relay K2; the second pin of the first switch relay K1 is connected to the first connector of the ninth connector CN2; the third pin and the fourth pin of the first switch relay K1 are respectively connected to the cathode and anode of the fourth diode D4, and the anode of the fourth diode D4 is connected to the load driving module; the second pin of the fourth switch relay K4 is connected to the second pin of the ninth connector CN2; the third pin and the fourth pin of the fourth switch relay K4 are respectively connected to the cathode and anode of the fourteenth diode D14, and the anode of the fourteenth diode D14 is connected to the load driving module.

[0050] The second pin of the third switch relay K3 is connected to the third pin of the ninth connector CN2, the third pin and the fourth pin of the third switch relay K3 are respectively connected to the cathode and anode of the seventh diode D7, the anode of the seventh diode D7 is connected to the load driving module, the first pin of the second switch relay K2 is connected to the fourth pin of the ninth connector CN2, the third pin and the fourth pin of the second switch relay K2 are respectively connected to the cathode and anode of the eighth diode D8, the anode of the eighth diode D8 is connected to the load driving module, wherein the first switch relay K1 controls the heating function, the second switch relay K2 is used to control the drain valve, the third switch relay K3 is used to control the water inlet valve, and the fourth switch relay K4 controls the drying function.

[0051] The fan unit in the utility model can dry the washed clothes, so that the washed clothes do not need to be hung out to dry, and the user can wear the clothes directly after washing. The automatic pump unit can automatically dispense detergent into the drum of the washing machine without the need for the user to dispense detergent. The liquid level detection unit can detect the liquid level of the detergent, so as to remind the user to add detergent by himself when the detergent is insufficient.

[0052] 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 drying washing machine, characterized in that: include: A main control unit, a fan unit, an air inlet temperature detection unit, an air outlet temperature detection unit, an automatic delivery pump unit and a liquid level detection unit, wherein the main control unit is respectively connected to the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic delivery pump unit and the liquid level detection unit, wherein the main control unit comprises a first main control module and a second main control module, wherein the first main control module is respectively connected to the second main control module, the fan unit, the air inlet temperature detection unit, the air outlet temperature detection unit, the automatic delivery pump unit and the liquid level detection unit.

2. A control circuit for a drying washing machine according to claim 1, characterized in that: It also includes a lighting unit, a display interface unit, a motor drive unit connected to the motor, a load unit and a power supply unit for providing power to each unit. The first main control module is also connected to the lighting unit, and the second main control module is respectively connected to the display interface unit, the motor drive unit and the load unit.

3. A control circuit for a drying washing machine according to claim 2, characterized in that: The first main control module includes a first main control chip, the second main control module includes a second main control chip, two control ends of the first main control chip are connected to the second main control module, the control end of the first main control chip is connected to the fan unit, the control end of the first main control chip is connected to the air inlet temperature detection unit, the control end of the first main control chip is connected to the air outlet temperature detection unit, the control end of the first main control chip is connected to the automatic delivery pump unit, the control end of the first main control chip is connected to the liquid level detection unit, and the control end of the first main control chip is connected to the lighting unit; Two control ends of the second main control chip are connected to the first main control module, two control ends of the second main control chip are connected to the display interface unit, two control ends of the second main control chip are connected to the motor drive unit, and six control ends of the second main control chip are connected to the load unit.

4. A control circuit for a drying washing machine according to claim 1, characterized in that: The fan unit includes a second transistor, and the base of the second transistor is connected to the first main control module; the air inlet temperature detection unit includes a second connector and a sixty-ninth resistor, and the second pin of the second connector is connected to the first main control module through the sixty-ninth resistor; the air outlet temperature detection unit includes a third connector and a seventy-first resistor, and the second pin of the third connector is connected to the first main control module through the seventy-first resistor.

5. A control circuit for a drying washing machine according to claim 1, characterized in that: The automatic dispensing pump unit includes a fourth transistor, the base of which is connected to the first main control module; the liquid level detection unit includes a fifth connector and a sixty-seventh resistor, the second pin of the fifth connector is connected to the first main control module via the sixty-seventh resistor.

6. A control circuit for a drying washing machine according to claim 2, characterized in that: The lighting unit includes a sixth connector and a fifty-eighth resistor, and the second pin of the sixth connector is connected to the first main control module through the fifty-eighth resistor; the display interface unit includes a seventh connector, a sixth resistor and a seventh resistor, and the second pin and the third pin of the seventh connector are connected to the second main control module through the sixth resistor and the seventh resistor respectively; the motor drive unit includes an eighth connector, a fifth transistor and a thirteenth resistor, the base of the fifth transistor is connected to the second main control module, and the fifth pin of the eighth connector is connected to the second main control module through the thirteenth resistor.

7. A control circuit for a drying washing machine according to claim 2, characterized in that: The load unit includes a load driving module and a load module, the load driving module is connected to the second main control module and the load module respectively, the load driving module includes a load driving chip, six control ends of the load driving chip are connected to the second main control module, and four control ends of the load driving chip are connected to the load module.

8. A control circuit for a drying washing machine according to claim 7, characterized in that: The load module includes a fourth diode, a fourteenth diode, a seventh diode and an eighth diode, the anode of the fourth diode is connected to the load driving module, the anode of the fourteenth diode is connected to the load driving module, the anode of the seventh diode is connected to the load driving module, and the anode of the eighth diode is connected to the load driving module.

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