CN213358045U - Washing machine control circuit - Google Patents
Washing machine control circuit Download PDFInfo
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- CN213358045U CN213358045U CN202021866576.3U CN202021866576U CN213358045U CN 213358045 U CN213358045 U CN 213358045U CN 202021866576 U CN202021866576 U CN 202021866576U CN 213358045 U CN213358045 U CN 213358045U
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Abstract
The utility model discloses a washing machine control circuit, which comprises a power supply module, a main controller module, a motor driving module, a display control module and a parameter acquisition module, wherein the main controller module comprises a first controller and a peripheral circuit thereof, and the display control module comprises a second controller and a peripheral circuit thereof; the power supply module is respectively connected with the main controller module, the motor driving module, the display control module and the parameter acquisition module; the main controller module is respectively connected with the motor driving module and the parameter acquisition module; and the first controller of the main controller module is in communication connection with the second controller of the display control module. According to the technical scheme, the first controller in the main controller module and the second controller in the display control module are respectively utilized to control the operation of the whole washing machine, and the first controller and the second controller are respectively provided with processes in charge, so that the burden of a single controller can be effectively reduced, and the probability of abnormal conditions is reduced.
Description
Technical Field
The utility model relates to an electronic circuit technical field, more specifically say and relate to a washing machine control circuit.
Background
At present, the washing machine belongs to common electrical equipment of family households, the existing washing machine is provided with a main controller, and the main controller is utilized to realize the matching work of all parts of the washing machine.
Along with the improvement of the technology, the functions configured by the washing machine are more powerful, the functions of improving the washing efficiency or the washing effect of the washing machine and the like can be realized by realizing the matching work of all parts of the washing machine and also realizing certain intelligent control algorithms, so that the software design difficulty of a main controller is greatly improved due to the fact that the burden of the main controller in some washing machines is extremely high, and abnormal conditions are easy to occur in the use process of the washing machine.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a control circuit for a washing machine, which solves one or more technical problems in the prior art and provides at least one of the beneficial options and creation conditions.
The technical scheme adopted for solving the technical problems is as follows:
a washing machine control circuit comprises a power supply module, a main controller module, a motor driving module, a display control module and a parameter acquisition module, wherein the main controller module comprises a first controller and a peripheral circuit thereof, and the display control module comprises a second controller and a peripheral circuit thereof;
the power supply module is respectively connected with the main controller module, the motor driving module, the display control module and the parameter acquisition module;
the main controller module is respectively connected with the motor driving module and the parameter acquisition module;
the first controller of the main controller module is in communication connection with the second controller of the display control module.
As a further improvement of the above technical solution, the display control module further includes an input key and a liquid crystal display, the second controller is configured with a keyboard scanning interface, a display control interface and a communication interface, the keyboard scanning interface of the second controller is connected with the input key, the display control interface of the second controller is connected with the liquid crystal display, and the communication interface of the second controller is connected with the first controller.
As a further improvement of the above technical solution, the model of the second controller is TM 1721.
As a further improvement of the above technical solution, the power module includes a live wire input end, a zero line input end, a rectifier diode D1, a capacitor C1, an isolation transformer T1, a switching power supply chip, and a voltage control current source, the isolation transformer T1 is configured with a primary winding and a secondary winding, the live wire input end is connected to the anode of the rectifier diode D1, the cathode of the rectifier diode D1 is connected to the primary winding of the isolation transformer T1, one end of the capacitor C1 is connected to the cathode of the rectifier diode D1, the other end is connected to the zero line input end, the switching power supply chip is connected to the primary winding of the isolation transformer T1, and the voltage control current source is connected to the switching power supply chip and the secondary winding of the isolation transformer T1, respectively.
As a further improvement of the above technical solution, the voltage control current source includes a zener diode DZ and a photoelectric coupler, a cathode of the zener diode DZ is connected to the secondary winding of the isolation transformer T1, an anode of the zener diode DZ is connected to an input terminal of the photoelectric coupler, and an output terminal of the photoelectric coupler is connected to the switching power supply chip.
As a further improvement of the above technical solution, the model of the switching power supply chip is TNY 275.
As a further improvement of the above technical solution, the motor driving module includes a relay driving chip, a relay, an excitation winding interface, and an armature winding interface, the main controller module is connected to the relay driving chip, the relay driving chip is connected to the relay, the relay is respectively connected to the excitation winding interface and the armature winding interface, and the excitation winding interface and the armature winding interface are connected in series.
As a further improvement of the technical scheme, the parameter acquisition module comprises a water level sensor and a rotating speed sensor, and the water level sensor and the rotating speed sensor are respectively connected with the main controller module.
The utility model has the advantages that: according to the technical scheme, the first controller in the main controller module and the second controller in the display control module are respectively utilized to control the operation of the whole washing machine, and the first controller and the second controller are respectively provided with processes in charge, so that the burden of a single controller can be effectively reduced, and the probability of abnormal conditions is reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic diagram of a circuit module of the present invention;
fig. 2 is a schematic circuit diagram of the power module of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, the present application discloses a control circuit of a washing machine, a first embodiment of which includes a power module, a main controller module, a motor driving module, a display control module and a parameter acquisition module, the main controller module including a first controller and its peripheral circuits, the display control module including a second controller and its peripheral circuits;
the power supply module is respectively connected with the main controller module, the motor driving module, the display control module and the parameter acquisition module;
the main controller module is respectively connected with the motor driving module and the parameter acquisition module;
the first controller of the main controller module is in communication connection with the second controller of the display control module.
Specifically, in the embodiment, the first controller in the main controller module and the second controller in the display control module are respectively utilized to control the operation of the whole washing machine, and the first controller and the second controller have respective processes, so that the burden of a single controller can be effectively reduced, and the probability of abnormal conditions is reduced.
Further as a preferred implementation manner, in this embodiment, the display control module further includes an input key and a liquid crystal display, the model of the second controller is TM1721, the second controller is configured with a keyboard scanning interface, a display control interface and a communication interface, the keyboard scanning interface of the second controller is connected to the input key, the display control interface of the second controller is connected to the liquid crystal display, and the communication interface of the second controller is connected to the first controller. The second controller of the type described in this embodiment is mainly used for performing human-computer interaction operations, and is used for providing command input operations for a user and information output operations for the user.
Further as a preferred implementation manner, in this embodiment, the power module includes a live wire input end, a neutral wire input end, a rectifier diode D1, a capacitor C1, an isolation transformer T1, a switching power supply chip of a TNY275 type, and a voltage control current source, the isolation transformer T1 is configured with a primary winding and a secondary winding, the live wire input end is connected to the anode of the rectifier diode D1, the cathode of the rectifier diode D1 is connected to the primary winding of the isolation transformer T1, one end of the capacitor C1 is connected to the cathode of the rectifier diode D1, the other end is connected to the neutral wire input end, the switching power supply chip is connected to the primary winding of the isolation transformer T1, and the voltage control current source is connected to the switching power supply chip and the secondary winding of the isolation transformer T1, respectively. In this embodiment, the power module employs an isolated switching power supply circuit, which can effectively provide safety and reliability in the power utilization process of this embodiment.
Furthermore, in this embodiment, the voltage-controlled current source includes a voltage-stabilizing diode DZ, a negative electrode of the voltage-stabilizing diode DZ is connected to the secondary winding of the isolation transformer T1, a positive electrode of the voltage-stabilizing diode DZ is connected to an input terminal of the photocoupler, and an output terminal of the photocoupler is connected to the switching power supply chip. In this embodiment, the combination of the zener diode DZ and the photoelectric coupler is utilized to realize the function of stabilizing the output voltage of the power module, when the output voltage of the power module changes, the current flowing through the zener diode DZ changes greatly, the current flowing through the zener diode DZ also changes correspondingly to the current at the output end of the photoelectric coupler, and the switching power chip of the type controls the operation of the switching tube integrated therein according to the change, thereby stabilizing the output voltage of the power module.
Further, in a preferred embodiment, in this embodiment, the motor driving module includes a relay driving chip, a relay, an excitation winding interface, and an armature winding interface, where the model of the motor driving module is ULN2003, the main controller module is connected to the relay driving chip, the relay driving chip is connected to the relay, the relay is respectively connected to the excitation winding interface and the armature winding interface, and the excitation winding interface and the armature winding interface are connected in series.
Further as a preferred implementation manner, in this embodiment, the parameter acquisition module includes a water level sensor and a rotation speed sensor, and the water level sensor and the rotation speed sensor are respectively connected to the main controller module.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (8)
1. A washing machine control circuit is characterized in that: the intelligent control system comprises a power supply module, a main controller module, a motor driving module, a display control module and a parameter acquisition module, wherein the main controller module comprises a first controller and a peripheral circuit thereof, and the display control module comprises a second controller and a peripheral circuit thereof;
the power supply module is respectively connected with the main controller module, the motor driving module, the display control module and the parameter acquisition module;
the main controller module is respectively connected with the motor driving module and the parameter acquisition module;
the first controller of the main controller module is in communication connection with the second controller of the display control module.
2. A washing machine control circuit as claimed in claim 1, wherein: the display control module further comprises an input key and a liquid crystal display screen, the second controller is provided with a keyboard scanning interface, a display control interface and a communication interface, the keyboard scanning interface of the second controller is connected with the input key, the display control interface of the second controller is connected with the liquid crystal display screen, and the communication interface of the second controller is connected with the first controller.
3. A washing machine control circuit as claimed in claim 2, wherein: the model of the second controller is TM 1721.
4. A washing machine control circuit as claimed in claim 1, wherein: the power module includes live wire input, zero line input, rectifier diode D1, electric capacity C1, isolation transformer T1, switching power supply chip and voltage control current source, isolation transformer T1 disposes primary winding and secondary winding, the live wire input with rectifier diode D1's positive pole links to each other, rectifier diode D1's negative pole with isolation transformer T1's primary winding links to each other, electric capacity C1's one end with rectifier diode D1's negative pole links to each other, the other end with the zero line input links to each other, the switching power supply chip with isolation transformer T1's primary winding links to each other, the voltage control current source respectively with switching power supply chip and isolation transformer T1's secondary winding links to each other.
5. A washing machine control circuit as claimed in claim 4, wherein: the voltage control current source comprises a voltage stabilizing diode DZ and a photoelectric coupler, the cathode of the voltage stabilizing diode DZ is connected with the secondary winding of the isolation transformer T1, the anode of the voltage stabilizing diode DZ is connected with the input end of the photoelectric coupler, and the output end of the photoelectric coupler is connected with the switching power supply chip.
6. A washing machine control circuit as claimed in claim 5, wherein: the model of the switching power supply chip is TNY 275.
7. A washing machine control circuit as claimed in claim 1, wherein: the motor driving module comprises a relay driving chip, a relay, an excitation winding interface and an armature winding interface, the main controller module is connected with the relay driving chip, the relay driving chip is connected with the relay, the relay is respectively connected with the excitation winding interface and the armature winding interface, and the excitation winding interface and the armature winding interface are connected in series.
8. A washing machine control circuit as claimed in claim 1, wherein: the parameter acquisition module comprises a water level sensor and a rotating speed sensor, and the water level sensor and the rotating speed sensor are respectively connected with the main controller module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866576.3U CN213358045U (en) | 2020-08-31 | 2020-08-31 | Washing machine control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866576.3U CN213358045U (en) | 2020-08-31 | 2020-08-31 | Washing machine control circuit |
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| Publication Number | Publication Date |
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| CN213358045U true CN213358045U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021866576.3U Active CN213358045U (en) | 2020-08-31 | 2020-08-31 | Washing machine control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862962A (en) * | 2021-10-27 | 2021-12-31 | 创维电器股份有限公司 | Intelligent control system of double-drum washing machine |
| CN114808368A (en) * | 2022-05-24 | 2022-07-29 | 合肥惟新数控科技有限公司 | Brand-new topological structure of washing machine control system |
-
2020
- 2020-08-31 CN CN202021866576.3U patent/CN213358045U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862962A (en) * | 2021-10-27 | 2021-12-31 | 创维电器股份有限公司 | Intelligent control system of double-drum washing machine |
| CN114808368A (en) * | 2022-05-24 | 2022-07-29 | 合肥惟新数控科技有限公司 | Brand-new topological structure of washing machine control system |
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