CN215580908U - Long-time power-down memory protection device and air fryer - Google Patents

Long-time power-down memory protection device and air fryer Download PDF

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Publication number
CN215580908U
CN215580908U CN202121119935.3U CN202121119935U CN215580908U CN 215580908 U CN215580908 U CN 215580908U CN 202121119935 U CN202121119935 U CN 202121119935U CN 215580908 U CN215580908 U CN 215580908U
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circuit
power
controller
memory
power supply
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邹松柱
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Shenzhen Qianhai Patozon Network Technology Co Ltd
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Shenzhen Qianhai Patozon Network Technology Co Ltd
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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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Abstract

The utility model discloses a long-time power-down memory protection device and an air fryer, wherein the long-time power-down memory protection device comprises a power supply circuit, a switch circuit, a memory circuit and a controller; the input end of the power supply current is connected with commercial power, the output end of the power supply circuit is connected with the input end of the switch circuit, the output end of the switch circuit is connected with the power detection end of the controller, the analog-to-digital conversion end of the controller is connected with the input end of the memory circuit, and the output end of the memory circuit is grounded; the power supply circuit supplies power to the controller; the switching circuit switches on/off a circuit between the power supply circuit and the controller; the memory circuit is used for storing electric energy so as to supply power to the controller when the power supply circuit is powered off; and the controller is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished. The scheme has the power failure memory function, saves and recovers the state function data of the household appliance within a certain time range, and improves the use experience of a user.

Description

Long-time power-down memory protection device and air fryer
Technical Field
The utility model relates to the technical field of power failure protection, in particular to a long-time power failure memory protection device and an air fryer.
Background
With the increasing development of economy, people's direction towards beautiful life is increasing day by day, and domestic appliances are more and more in variety. One of the air fryer is an air fryer, which uses a high-speed air circulation technology and uniquely combines the quick-circulation hot air and the internal spiral grains, so that the cooking effect achieves the effect of frying food and the taste.
The conventional air fryer loses the previous working state immediately after the power failure of the power grid, and needs to be re-powered on to set the previous working mode once again, so that repeated operation is caused, and the experience of a user is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a long-time power-down memory protection device and an air fryer, which can store and recover state function data of household appliances within a certain time range and improve the use experience of users.
In order to achieve the purpose, the long-time power-down memory protection device provided by the utility model comprises a power supply circuit, a switch circuit, a memory circuit and a controller;
the input end of the power supply current is connected with a mains supply, the output end of the power supply circuit is connected with the input end of the switch circuit, the output end of the switch circuit is connected with the power detection end of the controller, the analog-to-digital conversion end of the controller is connected with the input end of the memory circuit, and the output end of the memory circuit is grounded;
the power supply circuit is used for supplying power to the controller;
the switching circuit is used for switching on/off a circuit between the power supply circuit and the controller;
the memory circuit is used for storing electric energy so as to supply power to the controller when the power supply circuit is powered off;
the controller is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished.
Optionally, the controller is further configured to process the current output by the power supply circuit and charge the memory circuit.
Optionally, the controller has a memory therein for storing an operating state of the household appliance.
Optionally, the memory is a charged erasable programmable read only memory EEPROM.
Optionally, the power failure recovery time is 0 to 1 hour.
Optionally, the switching circuit includes a first resistor, a second resistor, a third resistor and a first switching tube;
the first end of the first resistor is the input end of the switch circuit, the second end of the first resistor, the first end of the second resistor and the controlled end common connection of the first switch tube, the first end of the third resistor is connected with a chip power supply, the second end of the third resistor is connected with the input end of the first switch tube and is the power detection end of the switch circuit, and the output end of the first switch tube is grounded with the common end of the second resistor.
Optionally, the memory circuit comprises a fourth resistor, a first diode and a first polarity capacitor;
the first end of the fourth resistor is connected with the anode of the first diode and is an analog-to-digital conversion end of the memory circuit, the second end of the fourth resistor, the cathode of the first diode and the anode of the first polarity capacitor are commonly connected, and the cathode of the first polarity capacitor is grounded.
Optionally, the power-down memory protection device further comprises a heating device and a fan;
the controller is also used for generating a control signal according to the preset heating time and the preset heating temperature and controlling the heating device and the fan to work through the control signal.
Optionally, the heating device is a heating tube, a heating wire or a halogen tube.
The embodiment also provides an air fryer, which comprises the long-time power-down memory protection device, wherein the long-time power-down memory protection device comprises a power supply circuit, a switch circuit, a memory circuit and a controller;
the input end of the power supply current is connected with a mains supply, the output end of the power supply circuit is connected with the input end of the switch circuit, the output end of the switch circuit is connected with the power detection end of the controller, the analog-to-digital conversion end of the controller is connected with the input end of the memory circuit, and the output end of the memory circuit is grounded;
the power supply circuit is used for supplying power to the controller;
the switching circuit is used for switching on/off a circuit between the power supply circuit and the controller;
the memory circuit is used for storing electric energy so as to supply power to the controller when the power supply circuit is powered off;
the controller is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished.
The memory protection device comprises a power supply circuit, a switch circuit, a memory circuit and a controller, wherein the power supply circuit is connected with the memory circuit; the power supply circuit is connected with a mains supply, the power supply circuit is connected with the controller through the switch circuit, when the switch circuit is switched on, the power supply circuit supplies power for the controller, and meanwhile, the memory circuit is charged for the memory circuit connected to the controller, so that after the power grid is powered down, the memory circuit can supply power for the controller for a period of time, the working state of the household appliance when the power is down is stored in the controller, and the household appliance is controlled to enter a standby mode after the power failure protection is finished. The problem of in the correlation technique after the power failure of electric wire netting the domestic appliance just loses the operating condition before immediately, the operating mode before need to set up once more again power on is solved. According to the technical scheme, when power supply is recovered after long-time power failure, the household appliance product can automatically recover the working mode before the power failure, namely, the state function data of the household appliance is stored and recovered within a certain time range, so that the use experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic block diagram of an embodiment of a long-term power-down memory protection apparatus according to the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of the long-time power-down memory protection device according to the present invention.
The reference numbers illustrate:
Figure BDA0003081285990000031
Figure BDA0003081285990000041
the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a long-time power-down memory protection device.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the long-time power-down memory protection device includes a power supply circuit 10, a switch circuit 20, a memory circuit 30 and a controller 40;
the input end of the power supply current is connected with a mains supply, the output end of the power supply circuit 10 is connected with the input end of the switch circuit 20, the output end of the switch circuit 20 is connected with the power detection end of the controller 40, the analog-to-digital conversion end of the controller 40 is connected with the input end of the memory circuit 30, and the output end of the memory circuit 30 is grounded;
the power supply circuit 10 is used for supplying power to the controller 40;
the switch circuit 20 is used for switching on/off the circuit between the power supply circuit 10 and the controller 40;
the memory circuit 30 is used for storing electric energy so as to supply power to the controller 40 when the power supply circuit 10 is powered off;
and the controller 40 is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished.
In the present embodiment, when the switching circuit 20 switches the power supply circuit 10 to the controller 40, the controller 40 processes the current output by the power supply circuit 10 to charge the memory circuit 30. It should be noted that, the power supply circuit 10 is connected to the 220V commercial power, and the dc voltage is output to the controller 40 through the switch circuit 20 after being processed by the rectifier circuit, the filter circuit, the isolation circuit, and the like in the power supply circuit 10, and the controller 40 processes the input dc voltage to charge the memory circuit 30. Therefore, when the power grid is powered off, the controller 40 is also provided with a standby direct-current power supply to supply power to the power grid, so that the working mode of the household appliance before the power grid is powered off is not lost.
Further, in the scheme, the long-time power failure memory protection device can set the power failure recovery time of the household appliance through the controller 40, so that after the power failure protection is finished, the controller 40 can control the household appliance to enter a standby mode. It is understood that the power failure recovery time may be, but is not limited to, 0 to 1 hour, such as recovery immediately after power failure, or 0.5 hour recovery, or 1 hour recovery, and may generally be set to 0 to 5 minutes for recovery, and after the power failure protection is finished, the household appliance enters the standby mode.
In the above embodiment, the switch circuit 20 includes the first resistor R1, the second resistor R2, the third resistor R3, and the first switch Q1;
the first end of the first resistor R1 is the input end of the switch circuit 20, the second end of the first resistor R1, the first end of the second resistor R2 and the controlled end common connection of the first switch tube Q1, the first end of the third resistor R3 is connected with a chip power supply, the second end of the third resistor R3 is connected with the input end of the first switch tube Q1, and is the power detection end of the switch circuit 20, the output end of the first switch tube Q1 is grounded with the common end of the second resistor R2.
The memory circuit 30 comprises a fourth resistor R4, a first diode D1 and a first polarity capacitor C1;
a first end of the fourth resistor R4 is connected to an anode of the first diode D1, and is an analog-to-digital conversion end of the memory circuit 30, a second end of the fourth resistor R4, a cathode of the first diode D1 and an anode of the first polar capacitor C1 are commonly connected, and a cathode of the first polar capacitor C1 is grounded.
Specifically, when the household appliance is connected to the 220V mains supply and the ac power is supplied, the household appliance normally enters a standby state, the first switch tube Q1 in the memory protection device is turned on after a long time of power failure, the ac power is normally supplied, meanwhile, the analog-to-digital conversion end of the controller 40 quickly charges the first polarity capacitor C1 through the first diode D1, and the load of the household appliance can normally work at this time.
When household electrical appliances are in normal work, the mains supply of the power grid is powered off, the alternating current is disconnected, the load in the household electrical appliances can stop working, the first switch tube Q1 can be turned off, and then the controller 40 detects the disconnection of the alternating current through the first switch tube Q1 and then stores the working state of the household electrical appliances into the controller 40 quickly and automatically through the controller 40. When the voltage of the first polarity capacitor C1 is less than the minimum operating voltage of the controller 40, the controller 40 is reset. The first polarity capacitor C1 discharges slowly through the fourth resistor R4 and the analog-to-digital conversion terminal of the controller 40 to supply power to the controller 40, and the specific discharging speed can be adjusted by the values of the first polarity capacitor C1 and the fourth resistor R4.
When the household appliance is powered on again, the controller 40 detects that the voltage of the first polarity capacitor C1 is greater than the preset voltage value, the working mode of the household appliance before the power failure is recovered, otherwise, the household appliance enters a normal standby state. It should be noted that the preset voltage value here may be set according to the power down protection time.
It should be understood that, in the above-mentioned solution, the controller 40 may be, but is not limited to, a single chip, a DSP, an FPGA, etc., and the first switch Q1 may be, but is not limited to, a transistor, an MOS transistor, etc., which is selected according to practical application, and is not limited specifically here.
The memory protection device comprises a power supply circuit 10, a switch circuit 20, a memory circuit 30 and a controller 40; the power supply circuit 10 is connected with a mains supply, the power supply circuit 10 is connected with the controller 40 through the switch circuit 20, when the switch circuit 20 is switched on, the controller 40 is powered, meanwhile, the memory circuit 30 connected to the controller 40 is charged, so that after power failure of a power grid, the memory circuit 30 can supply power to the controller 40 for a period of time, the working state of the household appliance when the power failure occurs is stored in the controller 40, and the household appliance is controlled to enter a standby mode after the power failure protection is finished. The problem of in the correlation technique after the power failure of electric wire netting the domestic appliance just loses the operating condition before immediately, the operating mode before need to set up once more again power on is solved. According to the technical scheme, when power supply is recovered after long-time power failure, the household appliance product can automatically recover the working mode before the power failure, namely, the state function data of the household appliance is stored and recovered within a certain time range, so that the use experience of a user is improved.
In one embodiment, the controller 40 has a memory therein for storing an operating state of the home appliance. Further, the memory is an electrically-charged erasable programmable read-only memory EEPROM, so that when the power grid fails, the electrically-charged erasable programmable read-only memory EEPROM in the controller 40 can store the working mode of the household appliance before the power failure, and the working mode of the household appliance before the power failure is not lost.
In one embodiment, when the household appliance is an air fryer, the power-down memory protection device may include a heating device 50 and a fan 60;
the controller 40 is further configured to generate a control signal according to a preset heating time and a preset heating temperature, and control the heating device 50 and the fan 60 to operate according to the control signal. The preset heating time and the preset heating temperature are the settings of the operation mode of the household appliance through the controller 40 before the household appliance operates, for example, the set heating time may be 30 minutes, the heating temperature is 100 degrees, and the heating time and the heating temperature may also be set according to the actual application condition, so as to set the corresponding heating time and heating temperature for different foods in the air fryer.
It is understood that the heating device 50 may be, but is not limited to, a heating tube, a heating wire or a halogen tube, and is not particularly limited thereto.
In order to achieve the above object, the present embodiment further provides an air fryer, which includes the above mentioned long-time power-down memory protection device, where the long-time power-down memory protection device includes a power supply circuit 10, a switch circuit 20, a memory circuit 30, and a controller 40;
the input end of the power supply current is connected with a mains supply, the output end of the power supply circuit 10 is connected with the input end of the switch circuit 20, the output end of the switch circuit 20 is connected with the power detection end of the controller 40, the analog-to-digital conversion end of the controller 40 is connected with the input end of the memory circuit 30, and the output end of the memory circuit 30 is grounded;
the power supply circuit 10 is used for supplying power to the controller 40;
the switch circuit 20 is used for switching on/off the circuit between the power supply circuit 10 and the controller 40;
the memory circuit 30 is used for storing electric energy so as to supply power to the controller 40 when the power supply circuit 10 is powered off;
and the controller 40 is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished.
The specific structure of the air fryer refers to the above-mentioned embodiments, and as the air fryer adopts all technical solutions of all embodiments of the long-time power-down memory protection device, at least all beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention that are made by using the contents of the specification and the drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.

Claims (10)

1. A long-time power-down memory protection device is applied to household appliances and is characterized by comprising a power supply circuit, a switch circuit, a memory circuit and a controller;
the input end of the power supply current is connected with a mains supply, the output end of the power supply circuit is connected with the input end of the switch circuit, the output end of the switch circuit is connected with the power detection end of the controller, the analog-to-digital conversion end of the controller is connected with the input end of the memory circuit, and the output end of the memory circuit is grounded;
the power supply circuit is used for supplying power to the controller;
the switching circuit is used for switching on/off a circuit between the power supply circuit and the controller;
the memory circuit is used for storing electric energy so as to supply power to the controller when the power supply circuit is powered off;
the controller is used for setting the power failure recovery time of the household appliance and controlling the household appliance to enter a standby mode after the power failure protection is finished.
2. The long-term power-down memory protection device according to claim 1, wherein the controller is further configured to process the current output by the power supply circuit and charge the memory circuit.
3. The long-time power-down memory protection device according to claim 1, wherein the controller has a memory therein for storing an operating state of the household appliance.
4. The long term power down memory protection device of claim 3, wherein the memory is a powered erasable programmable read only memory (EEPROM).
5. The long term power loss memory protection device of claim 1, wherein the power loss recovery time is 0 to 1 hour.
6. The long-time power-down memory protection device according to claim 1, wherein the switching circuit comprises a first resistor, a second resistor, a third resistor and a first switching tube;
the first end of the first resistor is the input end of the switch circuit, the second end of the first resistor, the first end of the second resistor and the controlled end common connection of the first switch tube, the first end of the third resistor is connected with a chip power supply, the second end of the third resistor is connected with the input end of the first switch tube and is the power detection end of the switch circuit, and the output end of the first switch tube is grounded with the common end of the second resistor.
7. The long term power down memory protection device of claim 1, wherein the memory circuit comprises a fourth resistor, a first diode and a first polarity capacitor;
the first end of the fourth resistor is connected with the anode of the first diode and is an analog-to-digital conversion end of the memory circuit, the second end of the fourth resistor, the cathode of the first diode and the anode of the first polarity capacitor are commonly connected, and the cathode of the first polarity capacitor is grounded.
8. The long time power down memory protection device of claim 1, further comprising a heating device and a fan;
the controller is also used for generating a control signal according to the preset heating time and the preset heating temperature and controlling the heating device and the fan to work through the control signal.
9. The long term power loss memory protection device according to claim 8, wherein the heating device is a heating tube, a heating wire or a halogen tube.
10. An air fryer comprising the long term power loss memory protection device of any one of claims 1 to 9.
CN202121119935.3U 2021-05-24 2021-05-24 Long-time power-down memory protection device and air fryer Active CN215580908U (en)

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Application Number Priority Date Filing Date Title
CN202121119935.3U CN215580908U (en) 2021-05-24 2021-05-24 Long-time power-down memory protection device and air fryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121119935.3U CN215580908U (en) 2021-05-24 2021-05-24 Long-time power-down memory protection device and air fryer

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