CN113467268A - Control method for household appliance and household appliance - Google Patents
Control method for household appliance and household appliance Download PDFInfo
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- CN113467268A CN113467268A CN202110867101.9A CN202110867101A CN113467268A CN 113467268 A CN113467268 A CN 113467268A CN 202110867101 A CN202110867101 A CN 202110867101A CN 113467268 A CN113467268 A CN 113467268A
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- power supply
- household appliance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2642—Domotique, domestic, home control, automation, smart house
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The application belongs to the technical field of household appliances, and particularly discloses a control method for the household appliances and the household appliances; the household appliance corresponding to the application is connected with the start-stop switch through at least one control structure, when the start-stop switch is closed, the at least one control structure can be in a working state, the at least one control structure is further connected with a second switch signal input end, an enabling end is controlled through a second switch signal output end, the third branch circuit and the first branch circuit can be communicated after the enabling end is activated, and equipment related to a display in the household appliance enters the working state; when domestic appliance standby, only the power end of second branch road and second switch is in the connected state, can realize reducing the standby power consumption of the relevant equipment of display among the domestic appliance through the circuit design structure of this application, and power resources is practiced thrift to the effect, through opening the stop switch, comes the discernment whether to reach operating condition, only just controls the complete machine operation after reaching operating condition, improves factor of safety.
Description
Technical Field
The application belongs to the technical field of household appliances, and particularly relates to a control method for a household appliance and the household appliance.
Background
Home appliances mainly refer to various electric and electronic appliances used in homes and the like. The existing household appliances are added with display equipment for displaying various parameters; the display device is a display tool which displays a certain electronic file on a screen through a specific transmission device and reflects the electronic file to human eyes. It can be classified into various types such as CRT (cathode ray tube), LCD (liquid crystal display), and the like.
However, most of the current home appliances have defects in circuit design, and consume a large amount of power consumption when the home appliances are in a standby state, which greatly wastes power resources.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present application and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
Disclosure of Invention
The application aims to provide a control method for a household appliance and the household appliance, and the technical problems that in the related technology, the household appliance is large in standby power consumption and has large potential safety hazards are solved at least to a certain extent.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of an embodiment of the present application, a household appliance includes a display, a display chip, at least one control structure, a start-stop switch, and a power supply circuit, where the start-stop switch is connected to the at least one control structure, and when the start-stop switch is turned off, the at least one control structure is in a working state, and the power supply circuit includes a power supply circuit, a first switch, a second switch, and a first power conversion circuit; wherein:
the power supply circuit is provided with a first branch circuit, a second branch circuit and a third branch circuit;
the first branch is connected with the display through the first switch;
the second branch circuit is respectively connected with a power supply end of the second switch and a signal input end of the second switch;
the signal input end of the second switch is also connected with the at least one control structure and can receive a control signal of the at least one control structure;
the third branch circuit is connected with the input end of the first power supply conversion circuit;
the output end of the first power supply conversion circuit is connected with the power supply end of the display chip, the first power supply conversion circuit is provided with an enabling end connected with the signal output end of the second switch, the enabling end can be activated when a signal output by the second switch meets the requirement, and the first power supply conversion circuit can supply power to the display chip through the output end of the first power supply conversion circuit after the enabling end of the first power supply conversion circuit is activated;
the signal output end of the display chip is connected with the signal input end of the first switch, and the display chip is used for controlling the on-off of the first switch;
and the signal output by the second branch circuit to the signal input end of the second switch does not meet the activation requirement of the enabling end.
In some embodiments of the present application, based on the above technical solutions, the at least one control structure further includes a main control chip connected to the display chip, the household appliance further includes other functional modules, and the main control chip is further connected to the other functional modules.
In some embodiments of the present application, based on the above technical solution, the power supply circuit includes a first adjusting resistor and a first node;
one end of the first adjusting resistor is connected with the second branch circuit, and the other end of the first adjusting resistor is connected with the first node;
the first node is connected with the signal input end of the second switch and is also connected with the signal output end of the main control chip.
In some embodiments of the present application, the at least one control structure further comprises a master control switch, and the power supply circuit further comprises a second regulating resistor and a second node;
one end of the second adjusting resistor is connected with the second branch circuit, and the other end of the second adjusting resistor is connected with the second node;
the second node is connected with the signal input end of the second switch and is also connected with the signal output end of the master control switch.
In some embodiments of the present application, the power supply circuit further comprises a third regulating resistor and a third node;
one end of the third adjusting resistor is connected with the second branch circuit, and the other end of the third adjusting resistor is connected with the third node;
the third node is connected with the signal input end of the second switch and also connected with the signal output end of the display chip.
In some embodiments of the present application, the second switch is an inverter.
In some embodiments of the present application, the power supply circuit further includes a second power conversion circuit, one end of the second power conversion circuit is connected to the second branch, and the other end of the second power conversion circuit is connected to the power terminal and the signal input terminal of the second switch, respectively.
In some embodiments of the present application, the household appliance further comprises an external load, and the power supply circuit further comprises a third power conversion circuit; wherein the content of the first and second substances,
the output end of the first power supply switching circuit is connected with an external load through a first power supply branch circuit and is connected with the third power supply switching circuit through a second power supply branch circuit, and the first power supply branch circuit is connected with the second power supply branch circuit in parallel;
the third power conversion circuit is connected with the power end of the display chip.
In some embodiments of the present application, based on the above technical solutions, the at least one control structure includes a main control chip, and the household appliance further includes a power supply filter rectification circuit and an isolation circuit;
the power supply filtering and rectifying circuit is respectively connected with the main control chip and the isolation circuit;
the main control chip is respectively connected with the signal input end of the second switch, the start-stop switch and the display chip through the isolation circuit, and the isolation circuit is further connected with the power circuit.
According to an aspect of an embodiment of the present application, there is provided a control method for a home appliance, for the home appliance described above, the control method including:
when the start-stop switch is closed, an activation signal is sent to a signal input end of the second switch according to a working instruction received by the household appliance, so that the enabling end is activated, and the power supply circuit supplies power to the display chip through a third branch circuit;
controlling the display chip to send a closing signal to the first switch so that the power supply circuit supplies power to the display through the first branch circuit;
and controlling the display chip to continuously send an activation signal to the signal input end of the second switch so as to continuously activate the enabling end.
In the technical scheme provided by the embodiment of the application, the household appliance corresponding to the application is connected with the start-stop switch through at least one control structure, when the start-stop switch is closed, the at least one control structure is in a working state, the at least one control structure is connected with a second switch signal input end, and is connected with an enabling end through a second switch signal output end for controlling the enabling end to be activated; when domestic appliance standby, because the signal of second branch road output to the signal input part of second switch does not reach the activation requirement of enabling end, only the power end of second branch road and second switch is in the connected state this moment, holistic consumption is minimum this moment, the effectual electric power resource of having practiced thrift, in addition this application opens the stop switch through adding, only open the display and other functional modules of domestic appliance just can work when opening the stop switch closure, the effectual potential safety hazard of having avoided has improved factor of safety.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 schematically shows a circuit diagram in a household appliance.
Fig. 2 schematically shows a flow chart of a control method for a household appliance.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The power supply circuit and the method provided by the present application are described in detail below with reference to specific embodiments.
Home appliances mainly refer to various electric and electronic appliances used in homes and the like. The household appliances are released from heavy, trivial and time-consuming household work, create more comfortable and beautiful life and working environment which are more beneficial to physical and mental health for human beings, provide rich and colorful cultural and entertainment conditions, and become necessities of modern family life.
Display equipment is required to be used in a plurality of household appliances used in life, and the display equipment is a display tool which displays a certain electronic file on a screen through specific transmission equipment and reflects the electronic file to human eyes. Many display devices not only have a display function, but also include various functional modules, such as wifi (mobile hotspot) modules, networking modules, USB modules, and other external loads and modules of the display devices, and thus, a plurality of driver chips are involved. In the standby circuit design, when the household appliance is in a standby state, each driving chip also has power consumption, so that the problem of high standby power consumption is also brought, and the power resources are greatly wasted.
Taking a dry-cleaning washing machine as an example, the dry-cleaning washing machine needs to display the current state through a display device, and some conventional washing machines display a scheme through an LED (light emitting diode), but the driving mode of the scheme is simple and monotonous in display content, and the content with a smooth animation effect cannot be displayed on the LED display device. In order to display the content with animation effect, an LCD (liquid crystal display) display scheme needs to be utilized, but since the LCD screen has large power consumption and needs to be used together with an LCD display driving chip, the LCD display driving chip also has power consumption, and the problem of large standby power consumption is also brought. Therefore, no power supply circuit can well solve the problem of high power consumption of display equipment in the household appliance during standby. Moreover, the existing household appliance has the problem of large power consumption, and the household appliance also has great potential safety hazard. Household electrical appliances are when getting into operating condition, because only a heavy control, the switch just begins the operation promptly, often can appear children contact or children mistake and enter into electrical apparatus to dry-cleaning type washing machine is the example, and the clothes dryer allows the user to directly open the door at machine operation in-process, and when the state of opening the door, children touch or creep into carelessly, all can lead to very big potential safety hazard.
According to an aspect of an embodiment of the present application, based on the above problem, as shown in fig. 1, fig. 1 schematically shows a circuit diagram in a home appliance. The application provides a household appliance, household appliance includes display 1, display chip 2, at least one control structure, start stop switch 10 and supply circuit, start stop switch connects at least one control structure, when start stop switch is closed, at least one control structure is in operating condition, at least one control structure of this application not only receives household appliance received signal control promptly, still need receive start stop switch 10's control, only start stop switch 10 is when closed, at least one control structure just can be in operating condition, just can receive household appliance received operating instruction, then control display device and other functional modules to household appliance, realize the work of individual functional module.
The power supply circuit includes a power supply circuit 41, a first switch 42, a second switch 43 and a first power conversion circuit 44; wherein:
the power circuit 41 has a first branch 411, a second branch 412 and a third branch 413; the power circuit 41 provides power to the whole power supply circuit, for example, the voltage output of the power circuit 41 may be set to 17V, where the power circuit 41 outputs power through three branches, namely, a first branch 411, a second branch 412, and a third branch 413. The functions and functions of the three branches are different, and the functions of the respective branches will be described in detail below.
The first branch 411 is a display branch, and is used for supplying power to the display 1 to display the display 1. The first branch 411 is connected with the display 1 through the first switch 42, and the first switch 42 is used for switching on and off the first branch 411, when the first switch 42 is closed, the first branch 411 is connected, the power circuit 41 can supply power to the corresponding display 1, and when the first switch 42 is disconnected, the first branch 411 is disconnected, and the display 1 cannot display images. For example, a voltage of 17V may be output by the power supply circuit 41 to power the display 1, so as to realize the display of the display 1.
The third branch 413 is a working branch, and the display device of the entire home appliance can normally work only when the third branch 413 is connected. The third branch 413 is connected to the input terminal of the first power conversion circuit 44, the output terminal of the first power conversion circuit 44 is connected to the power terminal of the display chip 2, the first power conversion circuit 44 has an enable terminal 441 connected to the signal output terminal of the second switch 43, the enable terminal 441 can be activated when the control signal output by the control structure meets the requirement, and the first power conversion circuit 44 can supply power to the display chip 2 through the output terminal thereof after the enable terminal 441 is activated.
The signal input of the second switch 43 of the present application is further connected to at least one control structure, and is capable of receiving a control signal of the at least one control structure. The function of the start-stop switch 10 of the present application is to control at least one control structure. When the start-stop switch 10 is off, at least one control structure does not send a control signal, so that the use safety of the household appliance is ensured, and dual control guarantee is realized, namely, only when the at least one control structure receives the control signal and the start-stop switch 10 is on, the control of the household appliance and the display related equipment is realized.
When at least one control structure sends a control signal to the signal input terminal of the second switch 43, the control signal may reach the enable terminal 441 through the signal output terminal of the second switch 43 to enable the enable terminal 441 to be activated, so as to control the first power conversion circuit 44 to supply power to the display chip 2 through the output terminal thereof after the enable terminal 441 is activated, thereby enabling the third branch 413 to be connected.
The signal output end of the display chip 2 is connected to the signal input end of the first switch 42, the display chip 2 is used for controlling the on-off of the first switch 42, and after the third branch 413 is connected, the display chip 2 controls the first switch 42 to be closed, so that the first branch 411 is connected.
The second branch 412 is a standby branch, the second branch 412 is respectively connected to the power terminal of the second switch 43 and the signal input terminal of the second switch 43, when the whole household appliance is in a standby state, only the second branch 412 is in a normal working state, and the energy consumption of the second branch 412 is small. The reason why the second branch 412 consumes less power is that the signal output from the second branch 412 to the signal input terminal of the second switch 43 does not meet the activation requirement of the enable terminal 441. When at least one control structure does not send a control signal to the signal input terminal of the second switch 43, the signal output by the second branch 412 is input to the signal input terminal of the second switch 43, and the signal output by the second branch 412 to the signal input terminal of the second switch 43 does not meet the activation requirement of the enable terminal 441, therefore, under the condition that at least one control structure does not send a signal to the signal input terminal of the second switch 43, only the second branch 412 is kept in a normal working state in the present application, at this time, the power circuit 41 of the present application only supplies power to the power terminal of the second switch 43, the power consumption at this time is small, and the function of small power consumption in a standby state is realized. In the present application, when at least one control structure sends a control signal to the signal input terminal of the second switch 43, the normal operating state of the display device in the household appliance can be realized. Therefore, the problem that the power consumption is large when the display equipment in the household appliance is in standby is well solved, the start-stop switch is added, and the potential safety hazard is avoided.
The above section describes the overall construction of the power supply circuit of the present application, and further details of the power supply circuit are described in detail below.
The key of controlling the working state of the present application is that the third branch 413 needs to be connected, and the necessary condition for the connection of the third branch 413 is that the enable terminal 441 of the first power conversion circuit 44 is activated, so that the output terminal of the first power conversion circuit 44 can supply power to the display chip 2 only when the enable terminal 441 of the first power conversion circuit 44 is activated. The enable terminal 441 is also called an enable input terminal, and is an input port of the first power conversion circuit 44, and only when the input port is activated, the first power conversion circuit 44 can operate, so that the output terminal of the first power conversion circuit 44 supplies power to the display chip 2.
The enable terminal 441 is normally active high, but may alternatively be active low. If there is a horizontal line above the symbol, the low level is active. Therefore, if it is desired to have enable terminal 441 active, it is desired to give it a signal, which may be a high signal or a low signal. The enable terminal 441 is connected to the signal output terminal of the second switch 43, and when the signal output terminal of the second switch 43 provides a signal that the enable terminal 441 meets the requirement, the enable terminal 441 can be controlled to be activated.
The control signal output by the control structure meets many requirements, and the enable terminal 441 is activated by a high-level signal in this application. The enable terminal 441 can be activated when the signal output terminal of the second switch 43 outputs a high level signal.
In one embodiment of the present application, the second switch 43 is an inverter. The inverter can invert the phase of the input signal by 180 degrees, that is, output a low level when the input terminal receives a high level and output a high level when the input terminal receives a low level. Therefore, in this embodiment of the present application, the enable terminal 441 is enabled only when the input terminal of the second switch 43 inputs a low level signal and the corresponding output terminal of the second switch 43 outputs a high level signal, so as to connect the third branch 413.
The second switch 43 of the present application may also use other control elements, so that when at least one control structure sends a control signal to the signal input terminal of the second switch 43, the signal output by the output terminal of the second switch 43 may activate the enable terminal 441, and at the same time, the signal output by the second branch 412 to the second switch 43 may not activate the enable terminal 441. Not limited to inverters.
The structure of the second switch 43 of the present application is described above, and the control manner and the specific structure of the at least one control structure of the present application are described next, and when the specific structure of the at least one control structure of the present application is different, the corresponding power supply circuit is also different. Several different control configurations are described below.
In an embodiment of the present application, based on the above technical solution, the at least one control structure further includes a main control chip 31 connected to the display chip 2, and when the at least one control structure is the main control chip 31, the power supply circuit includes a first adjusting resistor 311 and a first node 312; one end of the first adjusting resistor 311 is connected to the second branch 412, and the other end is connected to the first node 312; the first node 312 is connected to a signal input terminal of the second switch 43 and is also connected to a signal output terminal of the main control chip 31. The main control chip 31 of the present application is connected to the start-stop switch 10, and only when the main control chip 31 monitors that the start-stop switch 10 is turned off, the corresponding signal is sent to control the second switch 43.
When the control structure is the main control chip 31, in order to satisfy the requirement that the main control chip 31 sends a control signal to the signal input terminal of the second switch 43, the signal output by the output terminal of the second switch 43 can activate the enable terminal 441, and meanwhile, the signal output by the second branch 412 to the second switch 43 cannot activate the enable terminal 441. In the present application, a first node 312 and a first adjusting resistor 311 need to be added between the main control chip 31 and the signal input end of the second switch 43, and one end of the first adjusting resistor 311 is connected to the second branch 412, and the other end is connected to the first node 312; the first node 312 is connected to a signal input terminal of the second switch 43 and is also connected to a signal output terminal of the main control chip 31. Here, the first adjusting resistor 311 is a pull-up resistor, and the first adjusting resistor 311 functions as: when the main control chip 31 does not send a control signal to the signal input terminal of the second switch 43, it is ensured that the first node 312 is at a reliable high level, the input terminal of the second switch 43 receives the high level and outputs a low level, and the enable terminal 441 is not activated; when the main control chip 31 sends a control signal to the signal input terminal of the second switch 43, the first node 312 is at a low level, the input terminal of the second switch 43 receives the low level and outputs a high level, and the enable terminal 441 is activated.
The low level signal from the main control chip 31 to the input terminal of the second switch 43 is based on the control of the whole household appliance received by the main control chip 31 from the outside. And the control received by the main control chip 31 may be an external work instruction for the home appliance. The external work instruction for the household appliance may include voice operation information, for example, when the user controls to turn on the household appliance by voice, the main control chip 31 may provide a low level signal to the input terminal of the second switch 43, so as to implement the work of the display chip 2, other loads, and the display 1 of the household appliance. When the user controls the household appliance by voice to be in a standby state, the main control chip 31 does not send any signal, and the first branch 411 and the third branch 413 are disconnected. There are various ways for the control signal received by the main control chip 31, and the control signal may also include a received infrared sensing signal, a control signal of a remote terminal, and the like.
Besides the above forms, when the method is applied to different household appliances, the control of the signals of the main control chip 31 can be realized by other control signals. For example, for a dry-cleaning washing machine, when a user opens the door of the laundry bin, the main control chip 31 receives a door opening signal and then provides a low level signal to the input terminal of the second switch 43, so as to implement the operation of the display chip 2 and other loads of the household appliance and the display 1. The effect of opening the door and starting the machine can be realized by utilizing the scheme. And similarly, when the refrigerator door is applied to the refrigerator, the door can be opened and the refrigerator can be started.
When the control structure of this application is main control chip 31, domestic appliance still includes other functional module, and other functional module of domestic appliance are still connected to the main control chip of this application. For household appliances, the display module corresponding to the display is only one of the modules. The household appliance also comprises other functional modules, such as a dehydration control module and a washing control module for a washing machine, a refrigeration module for a refrigerator and the like. The function of the start-stop switch 10 of the present application is to control the main control chip 31. When the start-stop switch 10 is turned off, the main control chip 31 does not send a control signal, so that the use safety of the household appliance is ensured, and dual control guarantee is realized, namely, only when the main control chip 31 receives the control signal and the start-stop switch 10 is turned on, the control of the display-related equipment in the household appliance can be realized. For example, when the household appliance is in a standby state, when the main control chip 31 receives the control signal and the start-stop switch 10 is closed, the control of the device related to the display in the household appliance is realized, and the household appliance enters the working state.
The control of the circuit of the present application is not only for the display 1 of the household appliance, the display chip 2 and the external load 6 related to the display 1, but also for other functional modules 11 of the household appliance. For the household appliance, in order to reduce potential safety hazards, the main control chip 31 corresponding to the start-stop switch 10 of the present application is further connected to each functional module of the household appliance, and when the main control chip 31 monitors that the start-stop switch 10 is turned off, it indicates that the household appliance does not operate at this time, so that the main control chip 31 controls other functional modules 11 of the household appliance, for example, the dehydration function and the washing function of the washing machine do not operate, so as to protect the safety of a user. And only when the main control chip 31 monitors that the start-stop switch 10 is closed, that is, after the user presses the start-stop switch 10, other functional modules of the household appliance are controlled to operate. The main control chip 31 of the present application is two independent controls for controlling other functional modules 11 of the household appliance and for controlling the display 1 and the display chip 2 and the external load 6 related to the display 1, i.e. the two control branches do not affect each other. Specifically, when the display 1 of the household appliance and the display chip 2 and the external load 6 related to the display 1 are applied, the display 1 and the display chip 2 and the external load 6 related to the display 1, i.e. the third branch 413 and the first branch 411 according to the present application, are only applied, and the contents of other functions of the household appliance are not affected. For example, for a dry-cleaning washing machine, when a door is opened and a start-stop switch is turned off, the main control chip 31 monitors a door opening signal and a turn-off signal of the start-stop switch 10, and controls the working state of the display 1 of the dry-cleaning washing machine, and at this time, the display 1 corresponding to the washing machine is turned on, so as to realize the work of the display 1 and the display chip 2 and the external load 6 related to the display 1, and at this time, other functional modules of the washing machine, such as dehydration and washing, are not only affected by the start-stop switch 10, but also need to receive other signals to realize control, such as receiving a dehydration signal of an operation panel. Therefore, the control of the other functional modules 11 of the home appliance is independently performed from the control of the display chip 2 and the external load 6 related to the display 1 of the present application. The present application is primarily directed to improvements in the display chip 2 and the external load 6 associated with the display 1. The on-off switch 10 incorporated therein can be used for controlling both the display chip 2 associated with the display 1 and the external load 6 as well as other functional modules 11 of the household appliance. Through the design, the effect that equipment standby power consumption is low related to the display in the household appliance can be realized, and the potential safety hazard of the household appliance can be avoided. Meanwhile, the application field of the application also comprises that the household appliance is plugged into a household socket of a user by a power line, and when the user is not started for use, the household appliance is also in a standby state, and the application is mainly suitable for power consumption in the standby state. When the power cord is plugged into a socket of a user and the user is not started for use, other functions of the household appliance are not turned on, and the whole household appliance is in a standby state.
The start-stop switch 10 of the present application may also be configured to only control some functional modules, for example, for a washing machine, the safety problem mainly relates to the rotation functional module for the dehydration and washing of the washing machine, therefore, the start-stop switch 10 may be configured to only control the rotation functional module for the dehydration and washing of the washing machine, when the main control chip monitors that the start-stop switch 10 is turned off, the rotation functional module for the dehydration and washing of the washing machine is not operated, and is not affected to other parts of the washing machine, such as the display module. In this case, therefore, when the start-stop switch 10 is off, the main control chip 31 controls and maintains the current state of the machine, i.e. keeps other functional modules not affected by the start-stop switch running. Other functional modules are in normal operation at the moment, and still operate normally, and if the other functional modules are in a standby state at the moment, the standby state is maintained. When the start-stop switch 10 is closed, the main control chip 31 correspondingly adjusts and controls the working state of the rotation function module for dehydrating and washing the washing machine according to the monitored signal of the start-stop switch 10.
Moreover, this application has added and has stopped switch 10 after, not only has above effect, and this application will stop switch 10 and be connected with main control chip 31, consequently, when carrying out the safety monitoring authentication, only need monitor main control chip 31 the safety authentication can, and need not monitor display chip 2 alone again. Because, the start-stop switch of the application is also controlled by the main control chip, so that a lot of expenses are saved in safety certification, and the problem that the main control chip and the display chip need to be subjected to safety certification when the start-stop switch is connected to the display chip is solved.
One specific control scheme for the at least one control structure is disclosed above, followed by a second control structure.
In one embodiment of the present application, the at least one control structure further comprises a master switch 32, wherein one end of the master switch 32 is connected to ground, and the other end is connected to the signal input end of the second switch 43. The corresponding power supply circuit further includes a second adjusting resistor 321 and a second node 322; one end of the second adjusting resistor 321 is connected to the second branch 412, and the other end is connected to the second node 322; the second node 322 is connected to a signal input of the second switch 43 and also to a signal output of the overall control switch 32. Similarly, the master control switch 32 of the present application can also be connected to the start-stop switch 10, so as to achieve a dual control effect. I.e. the second switch 43 can only be controlled when the overall control switch is closed 10 and the start-stop switch 10 is also closed.
The control mode of the master switch 32 is consistent with that of the master control chip 31, so as to ensure that the second node 322 is at a low level when the master switch 32 sends a control signal to the signal input terminal of the second switch 43. The low-level second switch signal input end receives the low-level signal and outputs a high-level signal, the enable end 441 is activated, and the first power conversion circuit 44 works normally, so that the display chip 2 and the display 1 of the whole household appliance are in a working state. And will not be described in detail herein.
In this embodiment, after the two control structures are turned on, the second switch 43 can be controlled in another manner. The specific control scheme is as follows:
the signal input end of the second switch 43 of the present application can receive control signals from the main control chip 31 and the master control switch 32. It is also possible to receive control signals from the display chip 2. In application, the display chip is not connected to the start-stop switch 10 generally, because the control signal of the display chip 2 is different from the above two, the display chip 2 must supply power through the third branch 413 before sending the control signal to the signal input terminal of the second switch 43, so the display chip 2 of the present application continuously controls the second switch 43 after being powered on, and continuously sends a low level signal to the signal input terminal of the second switch 43 to control the enable terminal 441 to be activated continuously. The purpose of the design is to continuously control the display 1 and the display chip 2 of the whole household appliance in a working state, wherein the subsequent continuous control of the second switch 43 in the present application may be the single continuous control of the main control chip 32, the single continuous control of the display chip 2, or the common continuous control of the main control chip 32 and the display chip 2.
In one embodiment of the present application, the power supply circuit further includes a third regulating resistor 331 and a third node 332; one end of the third adjusting resistor 331 is connected to the second branch 412, and the other end is connected to the third node 332; the third node 332 is connected to a signal input terminal of the second switch 43 and is also connected to a signal output terminal of the display chip 2. The control mode of the display chip 2 is consistent with that of the main control switch, so as to ensure that the third node 332 is at a low level when the display chip 2 sends a control signal to the signal input terminal of the second switch 43. Therefore, stable control signals of the main control chip 31 are realized, and the display chip 2 and the display 1 of the whole household appliance are in working states. And will not be described in detail herein.
Wherein, several kinds of control structure above, this application can all set up simultaneously, also can carry out following several kinds of different settings: firstly, when there is a master control switch 32, there must be at least one master control chip 31 and display chip 2, and the master control switch 32 needs to be used in cooperation with the master control chip or the display chip; only the master control switch 32 cannot be used normally; secondly, when the master control switch 32 is not provided, only the master control chip 31 can be normally used, but only the display chip cannot be normally used; and thirdly, the main control chip and the display chip can work normally.
The reason that the power consumption is low when only the second branch 412 works in the present application is that when all the control structures do not send a control signal to the signal input terminal of the second switch 43, the input terminal of the second switch 43 receives a high level signal input by the second power conversion circuit after passing through the first adjusting resistor 311, the second adjusting resistor 321, and the third adjusting resistor 331, so that the low level signal output to the enable terminal 441 by the second switch does not reach the activation requirement of the enable terminal 441. Therefore, in the case where all the control structures do not send a low signal to the signal input terminal of the second switch 43, both the third branch and the first branch are not operated in the present application, and only the second branch 412 remains in an operating state, so that the power consumption of the whole circuit is very small.
Specific control of at least one of the control structures is disclosed above, followed by disclosure of additional structures on the second leg 412 and third leg 413 of the present application.
In an embodiment of the present application, the power supply circuit further includes a second power conversion circuit 5, and one end of the second power conversion circuit 5 is connected to the second branch 412, and the other end is connected to the power terminal and the signal input terminal of the second switch 43, respectively.
The second power supply changeover circuit 5 functions to change over the voltage of the power supply circuit 41 so that the power supply terminal output to the second switch 43 is smaller, achieving lower power consumption. For example, the output voltage of the power supply circuit 41 of the present application is 17V, and the voltage converted by the second power supply conversion circuit 5 is 5V.
In one embodiment of the present application, the household appliance further comprises an external load 6, and the power supply circuit further comprises a third power conversion circuit 7; the output end of the first power conversion circuit 44 is connected to the external load 6 through a first power supply branch 71, and is connected to the third power conversion circuit 7 through a second power supply branch 72, and the first power supply branch 71 is connected to the second power supply branch 72 in parallel; the third power conversion circuit 7 is connected to the power supply terminal of the display chip 2. The external load 6 corresponding to the present application includes the external load 6 related to the display device, such as a wifi module, a networking module, a USB module, etc. of the display device, and these modules are all modules directly connected to the display device. According to the application, the external load 6 and the display chip 2 are controlled and connected through the third branch 413, and when the third branch 413 is disconnected, the external load 6 related to the display device and the display chip 2 are also disconnected, so that the power consumption in a standby state can be effectively reduced.
The third power conversion circuit 7 of the present application is for further converting the voltage required by the display chip 2. For example, the voltage output by the power supply circuit 41 is 17V, the voltage output by the first power conversion circuit 44 is 5V, and the voltage output by the third power conversion circuit 7 is 3.3V. Therefore, 5V is supplied to the external load 6 of the display device and 3.3V is supplied to the display chip 2, further reducing power consumption. Meanwhile, the display chip 2 of the present application can also directly use 5V power supply, and correspondingly, the third power conversion circuit 7 can be removed to realize direct power supply.
When the household appliance is used specifically, the household appliance is in direct contact with a person, so that the danger of electric shock exists during use, and therefore the household appliance is optimized, and a specific optimization scheme is as follows.
In one embodiment of the present application, the at least one control structure includes a main control chip 31, and the household appliance further includes a power filter and rectifier circuit 8 and an isolation circuit 9; the power supply filtering and rectifying circuit 8 is respectively connected with the main control chip 31 and the isolation circuit 9; the main control chip 31 is connected with the start-stop switch 10, the signal input end of the second switch 43 and the display chip 2 through the isolation circuit 9, and the isolation circuit 9 is further connected with the power circuit 41. Wherein power supply filter rectifier circuit 8 of this application can the lug connection domestic power, the live wire and the zero line of lug connection alternating current, consequently, need isolation circuit 9 to protect when using. In the application, the power supply filter and rectification circuit 8 and the power supply circuit 41 are connected through the isolation circuit 9 by using the isolation circuit 9, so that the operation safety of the power supply circuit 41 can be ensured, and the electric shock hazard can be prevented. Simultaneously, main control chip 31 of this application passes through isolating circuit 9 and opens and stop switch 10, second switch 43's signal input part and display chip 2 and be connected, has also protected second switch 43's signal input part and display chip 2, realizes the power consumption safety.
And the design of the isolation circuit 9 of the present application can use the combination of transformer magnetic isolation and opto-electronic isolation of the opto-coupler to realize the electrical isolation between the primary side and the secondary side. The electrical isolation between the power supply filter rectifying circuit 8 and the power supply circuit 41 and the electrical isolation between the main control chip 31 and the signal input end of the second switch 43 and the display chip 2 can be realized through the design.
The above section discloses a specific household appliance, and the following continues to disclose a control method for the household appliance.
According to an aspect of an embodiment of the present application, as shown in fig. 2, fig. 2 schematically shows a flowchart of a control method of a home appliance. For the above household appliance, the specific method comprises steps S210-S230. The control method comprises the following steps:
step S210: and when the start-stop switch is closed, sending an activation signal to a signal input end of the second switch according to a working instruction received by the household appliance so as to activate an enabling end, so that the power supply circuit supplies power to the display chip through the third branch.
The working instruction of the household appliance can be from an external control signal, for example, a door opening signal or a voice signal from the household appliance, and after the household appliance receives the external working instruction, the household appliance sends an activation signal to the signal input end of the second switch to activate the enable end, so that the power supply circuit supplies power to the display chip through the third branch, the third branch of the household appliance is conducted, and the display chip starts to work at the moment.
And this application receives the work order and still can not control display chip work, still need to ensure to open and stop the switch and be the closure state, consequently, this application has added the judgement factor who opens and stops the switch, and only when opening and stopping the switch closure, just can realize the control to domestic appliance, has realized safer assurance. The potential safety hazard caused by the careless contact of children is avoided.
Step S220: and controlling the display chip to send a closing signal to the first switch so that the power supply circuit supplies power to the display through the first branch circuit.
After the display chip works, the display chip sends a closing signal to the first switch so that the power circuit supplies power to the display through the first branch circuit, and display of the display is achieved.
Step S230: and controlling the display chip to continuously send an activation signal to the signal input end of the second switch so as to enable the enabling end to be continuously activated.
Simultaneously, after the display chip work, the domestic appliance that this application corresponds still can control the display chip and continue to send activation signal for the signal input part of second switch to make the enable terminal continue the activation, can realize the continuous control to the signal input part of second switch, the display device that continuously controls domestic appliance is in operating condition.
In the technical scheme provided by the embodiment of the application, the application is connected with the start-stop switch through at least one control structure, when the start-stop switch is not disconnected, the at least one control structure does not send a control signal, the at least one control structure is connected with a second switch signal input end, and is connected with an enabling end through a second switch signal output end for controlling the enabling end to be activated; when household electrical appliances standby, because the signal of second branch road output to the signal input part of second switch does not reach the activation requirement of enabling end, only the power end of second branch road and second switch is in the connected state this moment, holistic consumption is minimum this moment, the effectual electric power resource of having practiced thrift, in addition this application opens the stop switch through adding, only opens the stop switch display and other functional modules of household electrical appliances just can work when closing, the effectual potential safety hazard of having avoided has improved factor of safety.
It should be noted that although the various steps of the methods in this application are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the shown steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. The household appliance is characterized by comprising a display, a display chip, at least one control structure, a start-stop switch and a power supply circuit, wherein the start-stop switch is connected with the at least one control structure, when the start-stop switch is closed, the at least one control structure is in a working state, and the power supply circuit comprises a power supply circuit, a first switch, a second switch and a first power supply conversion circuit; wherein:
the power supply circuit is provided with a first branch circuit, a second branch circuit and a third branch circuit;
the first branch is connected with the display through the first switch;
the second branch circuit is respectively connected with a power supply end of the second switch and a signal input end of the second switch;
the signal input end of the second switch is also connected with the at least one control structure and can receive a control signal of the at least one control structure;
the third branch circuit is connected with the input end of the first power supply conversion circuit;
the output end of the first power supply conversion circuit is connected with the power supply end of the display chip, the first power supply conversion circuit is provided with an enabling end connected with the signal output end of the second switch, the enabling end can be activated when a signal output by the second switch meets the requirement, and the first power supply conversion circuit can supply power to the display chip through the output end of the first power supply conversion circuit after the enabling end of the first power supply conversion circuit is activated;
the signal output end of the display chip is connected with the signal input end of the first switch, and the display chip is used for controlling the on-off of the first switch;
and the signal output by the second branch circuit to the signal input end of the second switch does not meet the activation requirement of the enabling end.
2. The household appliance according to claim 1, wherein the at least one control structure further comprises a main control chip connected to the display chip, the household appliance further comprises other functional modules, and the main control chip is further connected to the other functional modules.
3. The household appliance according to claim 2, wherein the supply circuit comprises a first regulating resistance and a first node;
one end of the first adjusting resistor is connected with the second branch circuit, and the other end of the first adjusting resistor is connected with the first node;
the first node is connected with the signal input end of the second switch and is also connected with the signal output end of the main control chip.
4. The household appliance according to claim 1, wherein the at least one control structure further comprises a master control switch, and the power supply circuit further comprises a second regulating resistor and a second node;
one end of the second adjusting resistor is connected with the second branch circuit, and the other end of the second adjusting resistor is connected with the second node;
the second node is connected with the signal input end of the second switch and is also connected with the signal output end of the master control switch.
5. The household appliance according to claim 3 or 4, wherein the power supply circuit further comprises a third regulating resistor and a third node;
one end of the third adjusting resistor is connected with the second branch circuit, and the other end of the third adjusting resistor is connected with the third node;
the third node is connected with the signal input end of the second switch and also connected with the signal output end of the display chip.
6. The household appliance according to claim 1, wherein the second switch is an inverter.
7. The household appliance according to claim 1, wherein the power supply circuit further comprises a second power conversion circuit, one end of the second power conversion circuit is connected to the second branch circuit, and the other end of the second power conversion circuit is respectively connected to the power terminal and the signal input terminal of the second switch.
8. The household appliance of claim 1, further comprising an external load, wherein the power supply circuit further comprises a third power conversion circuit; wherein the content of the first and second substances,
the output end of the first power supply switching circuit is connected with an external load through a first power supply branch circuit and is connected with the third power supply switching circuit through a second power supply branch circuit, and the first power supply branch circuit is connected with the second power supply branch circuit in parallel;
the third power conversion circuit is connected with the power end of the display chip.
9. The household appliance according to claim 1, wherein the at least one control structure comprises a main control chip, the household appliance further comprises a power supply filter rectification circuit and an isolation circuit;
the power supply filtering and rectifying circuit is respectively connected with the main control chip and the isolation circuit;
the main control chip is respectively connected with the signal input end of the second switch, the start-stop switch and the display chip through the isolation circuit, and the isolation circuit is further connected with the power circuit.
10. A control method of a household appliance, characterized in that it is used in a household appliance as claimed in claim 1, the control method comprising:
when the start-stop switch is closed, an activation signal is sent to a signal input end of the second switch according to a working instruction received by the household appliance, so that the enabling end is activated, and the power supply circuit supplies power to the display chip through a third branch circuit;
controlling the display chip to send a closing signal to the first switch so that the power supply circuit supplies power to the display through the first branch circuit;
and controlling the display chip to continuously send an activation signal to the signal input end of the second switch so as to continuously activate the enabling end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110867101.9A CN113467268B (en) | 2021-07-29 | 2021-07-29 | Control method for household appliance and household appliance |
| PCT/CN2022/104686 WO2023005643A1 (en) | 2021-07-29 | 2022-07-08 | Household electrical appliance and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110867101.9A CN113467268B (en) | 2021-07-29 | 2021-07-29 | Control method for household appliance and household appliance |
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| CN113467268A true CN113467268A (en) | 2021-10-01 |
| CN113467268B CN113467268B (en) | 2022-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023005643A1 (en) * | 2021-07-29 | 2023-02-02 | 海信冰箱有限公司 | Household electrical appliance and control method therefor |
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| CN103677034A (en) * | 2012-09-03 | 2014-03-26 | 珠海格力电器股份有限公司 | Standby circuit of household appliance and standby control method |
| CN210111683U (en) * | 2019-07-04 | 2020-02-21 | 深圳市嘉利达专显科技有限公司 | Circuit for reducing standby power of medical display powered by external power supply |
| CN213338362U (en) * | 2020-09-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Household appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103677034A (en) * | 2012-09-03 | 2014-03-26 | 珠海格力电器股份有限公司 | Standby circuit of household appliance and standby control method |
| CN210111683U (en) * | 2019-07-04 | 2020-02-21 | 深圳市嘉利达专显科技有限公司 | Circuit for reducing standby power of medical display powered by external power supply |
| CN213338362U (en) * | 2020-09-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Household appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023005643A1 (en) * | 2021-07-29 | 2023-02-02 | 海信冰箱有限公司 | Household electrical appliance and control method therefor |
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Address after: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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