CN114019884A - Household appliance power consumption control circuit and household appliance - Google Patents
Household appliance power consumption control circuit and household appliance Download PDFInfo
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- CN114019884A CN114019884A CN202111357379.8A CN202111357379A CN114019884A CN 114019884 A CN114019884 A CN 114019884A CN 202111357379 A CN202111357379 A CN 202111357379A CN 114019884 A CN114019884 A CN 114019884A
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- control chip
- control circuit
- household appliance
- transistor
- power consumption
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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
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Abstract
The application provides domestic appliance power consumption control circuit and domestic appliance, include: the output end of the power supply module is respectively connected with the first detection circuit, the load, the control circuit and the control chip, the output end of the first detection circuit is connected with the control chip, the first detection circuit is used for detecting the current value or the voltage value of the output end of the power supply module and sending the output detection result to the control chip, and when the current value or the voltage value is smaller than the preset value, the control chip and the power supply module are powered off. The problem of current domestic appliance stand-by power consumption is high is solved, and then has reached the effect of practicing thrift the electric energy, reducing the energy consumption loss.
Description
Technical Field
The application belongs to the technical field of household appliances, and particularly relates to a household appliance power consumption control circuit and a household appliance.
Background
The home appliances mainly refer to various electric and electronic appliances used in homes and the like, such as washing machines, refrigerators, televisions, and the like. The power supply circuit of the household appliance converts electric energy into magnetic energy and then converts the magnetic energy into electric energy, so that the commercial power is converted into direct current weak current required by the household appliance controller, the electric energy is continuously converted in the power supply circuit, and the household appliance is in a standby state, so that a part of electric energy is wasted and consumed, and a part of electric energy is consumed, and the electric energy loss is larger along with the increase of the household appliances.
Disclosure of Invention
The embodiment of the application provides a household appliance power consumption control circuit and a household appliance to solve the problem that the standby power consumption of the existing household appliance is high.
In a first aspect, an embodiment of the present application provides a power consumption control circuit for a household appliance, including: the output end of the power supply module is respectively connected with the first detection circuit, the load, the control circuit and the control chip, the output end of the first detection circuit is connected with the control chip, wherein,
the first detection circuit is used for detecting a current value or a voltage value of the output end of the power supply module and sending an output detection result to the control chip, and when the current value or the voltage value is smaller than a preset value, the control chip and the power supply module are powered off.
Optionally, the control circuit includes a transistor, the transistor is connected to the control chip and the power module, the transistor is turned on, the control circuit controls the power module to supply power to the control chip, the control chip controls the transistor to be turned off, and the control chip and the power module are powered off.
Optionally, the transistor includes a field effect transistor, a source of the field effect transistor is grounded, a drain of the field effect transistor is connected to the load, and a gate of the field effect transistor is connected to the control chip.
Optionally, the transistor further includes a triode, a base of the triode is connected to the control chip, an emitter of the triode is connected to the output end of the power module, and a collector of the triode is connected to the gate of the field effect transistor.
Optionally, the control circuit further includes a switch, the switch is connected to the transistor and the power supply module, and the transistor is turned on when the switch is pressed.
Optionally, the switch has a common terminal, a 2 nd terminal and a 3 rd terminal, the common terminal is grounded, the 2 nd terminal is connected to the control chip, the 3 rd terminal is connected to the load and the transistor, and when the common terminal is connected to the 3 rd terminal, the transistor is turned on.
Optionally, the control circuit further includes a second resistor, one end of the second resistor is connected to the output end of the control circuit, and the other end of the second resistor is connected to the switch and the control chip respectively.
Optionally, the output end of the power supply module is provided with a sampling resistor, the input end of the first detection circuit is connected with the sampling resistor, and the output end of the first detection circuit is connected with the control chip.
Optionally, the first detection circuit includes an operational amplifier, an input end of the operational amplifier is connected to the sampling resistor, and an output end of the operational amplifier is connected to the control chip.
In a second aspect, an embodiment of the present application further provides a household appliance, including any one of the above-mentioned household appliance power consumption control circuits.
The embodiment of the application provides a pair of domestic appliance power consumption control circuit and domestic appliance, because of adopting the current value of first detection circuitry detection power module output to send the testing result for control chip, control chip judges whether the load is in standby state according to the testing result, if be in standby state, then cut off control circuit, control chip cuts off the power supply, has solved the high problem of current domestic appliance standby power consumption, and then has reached the effect of practicing thrift the electric energy, reducing the energy consumption loss.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic diagram of a system provided in an embodiment of the present application.
Fig. 2 is a power supply module diagram according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a household appliance power consumption control circuit and a household appliance to solve the problem that the standby power consumption of the existing household appliance is high. The following description will be made with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic view of a system provided in an embodiment of the present application.
A power consumption control circuit for a home appliance, comprising: the power supply comprises a power supply module 1, a first detection circuit 2, a control circuit 3, a load 4 and a control chip 5, wherein the output end of the power supply module is respectively connected with the first detection circuit 2, the load 4, the control circuit 3 and the control chip 5, the output end of the first detection circuit 2 is connected with the control chip 5, and the power supply module 1 is used for supplying power to a power utilization circuit; the first detection circuit 2 is used for detecting a current value or a voltage value of the output end of the power module 1, outputting a detection result and sending the detection result to the control chip 5, and when the current value or the voltage value is smaller than a preset value, the control circuit 3 controls the control chip 5 to be disconnected from the output end of the power module 1.
It can be understood that, when the load 4 operates normally, the first detection circuit 2 detects that the current value at the output end of the power module 1 is larger, when the load 4 is in a standby state, the first detection circuit 2 detects the current value at the output end of the power module 1, the first detection circuit 2 amplifies the detected current value and converts the amplified current value into a voltage value, and sends the voltage value to the control chip 5, a voltage threshold is arranged in the control chip 5, the control chip 5 compares the received voltage value with a preset value, when the voltage value is lower than the preset value, the control chip 5 judges that the load 4 is in the standby state, the control chip 5 outputs a level signal, the control circuit 3 controls the control chip 5 to be disconnected from the output end of the power module 1, the control chip 5 and the load 4 are both in a power-off state, at this time, the first detection circuit 2, the load 4, the control circuit 3 and the control chip 5 are all powered off to realize the shutdown, the power consumption of the load 4 in the standby state is reduced.
Illustratively, the control circuit 3 comprises a transistor, the transistor is connected with the control chip 5 and the power module 1, the transistor is turned on, the control circuit 3 is communicated with the control chip 5 and the power module 1, the control chip 5 controls the transistor to be turned off, and the control chip 5 is disconnected with the output end of the power module 1.
Illustratively, the transistor comprises a field effect transistor Q2, wherein the source electrode of the field effect transistor is grounded, the drain electrode of the field effect transistor is connected with the load 4, and the gate electrode of the field effect transistor is connected with the control chip 5. It can be understood that when the control chip 5 outputs a high level signal, the field effect transistor Q2 is turned on, the control chip 5 is turned on with the power module 1, and when the control chip 5 outputs a low level signal, the field effect transistor Q2 is turned off, the control chip 5 is turned off with the power module 1, and the power module 1 does not supply power to the control chip 5 any more, so that the load of the whole machine is turned off, and the power loss of the load 4 in a standby state is saved.
Illustratively, the transistor further comprises a triode, the base of the triode of the power module 1 is connected with the control chip 5, the emitter of the triode of the power module 1 is connected with the output end of the power module 1, and the collector of the triode of the power module 1 is connected with the grid of the field effect transistor.
Illustratively, the control circuit 3 further comprises a switch, the switch is connected with the transistor and the power module 1, and the transistor is conducted when the switch is pressed. It can be understood that, when the load 4 needs to be powered on to operate, the control chip 5 needs to be powered on first, the switch is a touch switch, after the switch is pressed, the transistor is turned on, the power module 1 provides 5V voltage for the control chip 5, and the control chip 5 controls the load 4 to operate.
Illustratively, the switch has a common terminal, a 2 nd terminal and a 3 rd terminal, the common terminal is grounded, the 2 nd terminal is connected with the control chip 5, the 3 rd terminal is respectively connected with the load 4 and the transistor, and when the common terminal is connected with the 3 rd terminal of the power module 1, the transistor is turned on. It can be understood that when the switch is pressed, the common switch end of the switch is conducted with the 3 rd end, the transistor is conducted, the common end of the rear switch is conducted with the 2 nd end, the control chip 5 detects a low level signal, the load 4 is judged to be started, the load 4 is controlled to work, and when the power module 1 supplies power to the control chip 5 and the load 4, the switch is in a disconnected state.
Illustratively, the control circuit 3 further includes a resistor R2, one end of the resistor R2 is connected to the output terminal of the power control module 1, and the other end is connected to the switch and the control chip 5, respectively. The second resistor is resistor R2. When the switch is turned off, the control chip 5 detects a high level signal, and when the common terminal of the switch is connected with the 2 nd terminal, the control chip 5 detects a low level signal.
Illustratively, the output end of the power module 1 is provided with a sampling resistor R1, the input end of the first detection circuit 2 is connected with the sampling resistor R1, and the output end of the first detection circuit 2 is connected with the control chip 5.
Illustratively, the first detection circuit 2 comprises an operational amplifier, an input end of the operational amplifier is connected with a resistor R1, an output end of the operational amplifier is connected with the control chip 5, and the resistor R1 is a sampling resistor.
It can be understood that the first detection circuit 2 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a fifth resistor R5, an operational amplifier, and a first capacitor C1, the fourth resistor R4 connects one end of the sampling resistor R2 and an inverting input terminal of the operational amplifier, the sixth resistor R6 connects the other end of the sampling resistor R2 and a non-inverting input terminal of the operational amplifier, the third resistor R3 connects the inverting input terminal and the output terminal of the operational amplifier, one end of the fifth resistor R5 connects the output terminal of the operational amplifier, the other end of the fifth resistor R5 connects the control chip 5 and one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded to the GND 2.
Exemplarily, referring to fig. 2, the power module 1 includes an electromagnetic interference filter, a rectification filter circuit, a transformer T201, and a power chip IC202, an input end of the electromagnetic interference filter is connected to the live line L and the zero line N, an output end of the electromagnetic interference filter is connected to the rectification bridge filter circuit, 220V commercial power is converted into 310V direct current through the electromagnetic interference filter and the rectification filter circuit, an output end of the rectifier is connected to two ends of a capacitor C201, one end of the capacitor C201 is connected to a first primary coil of the transformer T201 through a diode D201, the other end of the first primary coil of the transformer T201 is respectively connected to an anode of the diode D202 and a 4 th pin of the power chip IC202, a cathode of the diode D202 is connected to one end of a resistor R202, and the other end of the resistor R202 is respectively connected to a cathode of the diode D201 through a capacitor C205 and a resistor R201; one end of the second primary coil of the transformer T201 is connected to the anode of the diode D203, the cathode of the diode D203 is connected to one end of the resistor R203 and one end of the capacitor C204, respectively, the other end of the resistor R203 is connected to the 2 nd pin of the power chip IC202 and one end of the capacitor C203, respectively, the other end of the capacitor C203 is grounded, and the other end of the second primary coil of the transformer T201 is grounded. One end of a secondary coil of the transformer T201 is connected to one end of a capacitor 307 and an anode of a diode D205, the other end of the capacitor 307 is connected to one end of a resistor R206, a cathode of the diode D205 is connected to the other end of the resistor R206, one end of a capacitor C210, one end of a capacitor C209, one end of a resistor R208 and one end of a resistor R210, the other end of the capacitor C210 and the other end of the capacitor C209 are both grounded, the other end of the resistor R208 is connected to an anode of a light-emitting source of the photocoupler U201 and one end of a resistor R209, a light-receiving device of the photocoupler U201 is connected to a 1 st pin and an 8 th pin of the power chip IC202, a cathode of the light-emitting source of the photocoupler U201A is connected to the other end of the resistor R209, one end of the capacitor C212 and the cathode of the diode IC201, the other end of the resistor R210 is connected to the other end of the capacitor C212 and one end of the anode of the diode IC 211, and the other end of the resistor R211 are grounded.
It can be understood that, when the load 4 is in a standby state, the first detection circuit 2 detects a current value flowing through the resistor R1, amplifies the current value and converts the current value into a voltage value, and sends the voltage value to the control chip 5, the control chip 5 determines that the voltage value is smaller than a preset value, the control chip 5 controls the control circuit 3 to be disconnected, the control circuit 3, the first detection circuit 2 and the control chip 5 are all disconnected from the power module 1, the power module 1 includes an AC-DC module 10, a feedback current 11 and a voltage division current 12, the voltage division circuit 12 divides the voltage output by the AV-DC module 10 through the resistor R210 and the resistor R211, the divided voltage value is fed back to the feedback circuit, the feedback circuit 11 optically couples the voltage to an enable pin of the AC-DC module 10, the enable pin of the power chip IC202 in the AC-DC module 10 detects that the voltage is continuously larger than a threshold value set inside the power chip IC202, the duty cycle of the switching tube inside the power chip IC202 is adjusted. When the load 4 is in standby, the control circuit 3, the first detection circuit 2 and the control chip 5 are all disconnected from the power module 1, the first detection circuit 2 is also in a standby mode within certain cycle time, so that the standby energy consumption of the household appliance is further reduced.
In some embodiments, the present application further provides a household appliance, including the household appliance power consumption control circuit of any one of the above. The household appliance power consumption control circuit can automatically detect that the household appliance is in a standby state, so that the power supply of the whole appliance is turned off, after the starting switch of the household appliance is pressed again, the household appliance recovers power supply, corresponding action is executed, and the power consumption of controlling the household appliance can be reduced.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
The power consumption control circuit of the household appliance provided by the embodiment of the present application is introduced in detail, a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A power consumption control circuit for a household appliance, comprising: the output end of the power supply module is respectively connected with the first detection circuit, the load, the control circuit and the control chip, the output end of the first detection circuit is connected with the control chip, wherein,
the first detection circuit is used for detecting a current value or a voltage value of the output end of the power supply module and sending an output detection result to the control chip, and when the current value or the voltage value is smaller than a preset value, the control chip and the power supply module are powered off.
2. A power consumption control circuit for a household appliance according to claim 1, characterized in that: the control circuit comprises a transistor, the transistor is connected with the control chip and the power module, the transistor is conducted, the control circuit controls the power module to supply power to the control chip, the control chip controls the transistor to be cut off, and the control chip and the power module are powered off.
3. A power consumption control circuit for a household appliance according to claim 2, characterized in that: the transistor comprises a field effect transistor, the source electrode of the field effect transistor is grounded, the drain electrode of the field effect transistor is connected with the load, and the grid electrode of the field effect transistor is connected with the control chip.
4. A power consumption control circuit for a household appliance according to claim 3, characterized in that: the transistor further comprises a triode, the base electrode of the triode is connected with the control chip, the emitting electrode of the triode is connected with the output end of the power supply module, and the collecting electrode of the triode is connected with the grid electrode of the field effect transistor.
5. A power consumption control circuit for a household appliance according to claim 2, characterized in that: the control circuit further comprises a switch, the switch is connected with the transistor and the power supply module, the switch is pressed, and the transistor is conducted.
6. A household appliance power consumption control circuit as claimed in claim 5, characterized in that: the switch is provided with a common end, a 2 nd end and a 3 rd end, the common end is grounded, the 2 nd end is connected with the control chip, the 3 rd end is respectively connected with the load and the transistor, and when the common end is connected with the 3 rd end, the transistor is conducted.
7. A household appliance power consumption control circuit as claimed in claim 5, characterized in that: the control circuit further comprises a second resistor, one end of the second resistor is connected with the output end of the control circuit, and the other end of the second resistor is connected with the switch and the control chip respectively.
8. A power consumption control circuit for a household appliance according to claim 1, characterized in that: the output end of the power supply module is provided with a sampling resistor, the input end of the first detection circuit is connected with the sampling resistor, and the output end of the first detection circuit is connected with the control chip.
9. A power consumption control circuit for a household appliance according to claim 8, characterized in that: the first detection circuit comprises an operational amplifier, the input end of the operational amplifier is connected with the sampling resistor, and the output end of the operational amplifier is connected with the control chip.
10. A household appliance comprising a household appliance power consumption control circuit as claimed in any one of the preceding claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111357379.8A CN114019884A (en) | 2021-11-16 | 2021-11-16 | Household appliance power consumption control circuit and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111357379.8A CN114019884A (en) | 2021-11-16 | 2021-11-16 | Household appliance power consumption control circuit and household appliance |
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| Publication Number | Publication Date |
|---|---|
| CN114019884A true CN114019884A (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111357379.8A Pending CN114019884A (en) | 2021-11-16 | 2021-11-16 | Household appliance power consumption control circuit and household appliance |
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| CN (1) | CN114019884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116027103A (en) * | 2023-03-29 | 2023-04-28 | 荣耀终端有限公司 | Power consumption detection circuit, power consumption detection chip and terminal equipment |
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