CN112932261B - USB electric heating cup and working method thereof - Google Patents
USB electric heating cup and working method thereof Download PDFInfo
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- CN112932261B CN112932261B CN202110370314.0A CN202110370314A CN112932261B CN 112932261 B CN112932261 B CN 112932261B CN 202110370314 A CN202110370314 A CN 202110370314A CN 112932261 B CN112932261 B CN 112932261B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21041—Water-boiling vessels, e.g. kettles electrically heated with heating elements arranged outside the water vessel
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
- A47J27/21091—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water of electronic type
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21158—Devices to detect overheating or boiling with a single control element or unit
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21166—Constructional details or accessories
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/2444—Drinking cups with heating means
- A47J36/2461—Drinking cups with heating means with electrical heating means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
- A47J36/321—Time-controlled igniting mechanisms or alarm devices the electronic control being performed over a network, e.g. by means of a handheld device
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
- A47J41/022—Constructional details of the elements forming vacuum space
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Resistance Heating (AREA)
- Cookers (AREA)
Abstract
The utility model provides a USB electric heating cup and a working method thereof. The circuit board comprises a USB Type-C module, a quick charging power receiving module, a power device module, a power conversion module, a main control module and a man-machine interaction module. The method comprises the steps that a microcontroller of a main control module controls a chip device of a quick charge power receiving module to request a quick charge source to adapt to the highest voltage; the fast charging source outputs voltage to the USB power supply line of the circuit board according to the value of the request voltage; the microcontroller dynamically controls the heating mode to the target water temperature according to the voltage value; when the current temperature is lower than the target temperature by a certain value, the microcontroller starts a dynamic control heating mode to keep warm.
Description
Technical Field
The disclosure relates to the technical field of electronic devices, in particular to a USB electric cup and a working method thereof.
Background
With the development of science and technology and the improvement of living standard of people, the electric heating cup is increasingly used by people in various scenes, for example, with the increasing frequency of traveling, the small portable electric heating cup is used in a large scale due to small size and multiple functions, and the traveling requirement of people is greatly met. In order to meet market demands such as traveling, 220V voltage power supply direct heating modes are basically adopted for electric heating cups on the market at present, a very small number of enterprises start to develop USB interface power supply heating modes, but the input voltage is very low, usually 5V, so that the problems of low heating power, low heating speed and the like are solved.
Disclosure of Invention
In view of this, the present disclosure provides a USB electric cup and a working method thereof.
The USB electric heating water cup comprises a cup body, a heating body, a bracket, a circuit board and a base.
The cup body comprises a metal vacuum double-layer cup body, the cup body comprises a shell, an inner container and bottom pieces, a vacuum layer is formed among the shell, the inner container and the bottom pieces, and fixing frames are arranged on the metal bottom pieces and are 2.
In one implementation mode, the cup body is an outer plastic inner steel cup body and comprises a plastic shell and a metal inner container cup body, and a fixing frame is arranged at the bottom of the outer side of the inner container.
The heating body comprises a polyimide electrothermal film, the polyimide electrothermal film is provided with a temperature sensor on the surface, the technical specification of the heating body is 20V65W, and the heating body is arranged at the bottom of the cup body.
In one implementation, the heating element is a tubular heating tube or a ceramic heating plate, and the temperature sensor is arranged at the bottom of the cup body.
The temperature sensor is used for acquiring the current temperature in real time and transmitting the current temperature to the microcontroller;
the support is a heat-insulating fixing piece, is arranged on a fixing frame of the cup body, and is used for protecting a heating element such as a polyimide electrothermal film or a ceramic heating plate and the like to reliably work for a long time, and a silica gel gasket is arranged between the heating element and the support.
The circuit board comprises a USB Type-C module, a quick charging power receiving module, a power device module, a power conversion module, a main control module and a man-machine interaction module. The USB Type-C module comprises a Type-C socket, the fast charging power receiving module comprises a power receiving chip device supporting USB PD, BC, QC and other protocols, the power device module comprises a field effect transistor device for controlling voltage output, the power conversion module comprises a conversion chip for converting output voltage of the fast charging power receiving module into input voltage of the main control module, the main control module comprises a microcontroller or a Bluetooth device, and the man-machine interaction module comprises a touch key device or a key switch device and an acousto-optic device.
The microcontroller is used for controlling the fast charging power receiving chip to request the fast charging power supply to adapt to different voltage values, and controlling the output voltage of the field effect tube to the heating body for dynamic heating control according to the current temperature obtained in real time by the temperature sensor.
The circuit board is installed on the base, and the base is fixed to the support, is equipped with cavity exposure circuit board USB Type-C socket on the base for connect the Type-C plug and insert the power.
In one implementation mode, the circuit board is arranged on the inner wall of a plastic shell of the outer plastic inner steel cup body, and a cavity exposed circuit board USB Type-C socket is arranged on the inner wall of the plastic shell and used for connecting a Type-C plug to a power supply.
The USB electric cup working method comprises the following steps that after a user connects a Type-C plug of a quick charging source adapter, a power supply is connected to a circuit board, a heating mode is selected through a touch key or a key of a man-machine interaction module, and a target temperature Tn is determined:
the microcontroller controls the fast charging and receiving module to request the fast charging source to adapt to the highest voltage value;
the fast charging power supply is adapted to output the highest voltage which can be output according to the value of the request voltage and input the highest voltage to the USB power supply line of the circuit board;
the microcontroller detects the voltage of the USB power supply line, and dynamically controls the heating mode to the water temperature target temperature Tn according to the voltage value.
First, dry combustion test is performed. Detecting the initial temperature T0, detecting the temperature once every deltat 1 minute, detecting twice at most, and if the temperature rise temperature of each interval does not exceed the temperature rise temperature value deltat 1 of the experimental big data statistics interval, considering normal heating. If the temperature of the first temperature rise is more than or equal to 2 times of delta T1, the temperature is considered to be in a dry burning state, heating is stopped, and sound and light reminding is performed. If the temperature rise of the two times is greater than delta T1, the heating is stopped and the sound and light reminding is carried out.
And secondly, detecting the water quantity, and calculating the heating duration of the target temperature. The temperature is detected once every interval delta T2 minutes, the temperature is detected twice, the temperature rise delta T21 of each interval is compared with experimental big data to count the temperature rise delta T2 of the interval, the water quantity ratio is approximately equal to delta T21/delta T2, the heating duration T total approximately equal to delta T21/delta T2 is equal to the average value calculated by the two detection.
Again, the heating is dynamically controlled according to the voltage values:
when the voltage value is smaller than or equal to a first threshold value, continuously working and heating with the current voltage until the target temperature is reached, stopping heating, and carrying out acousto-optic reminding;
and when the voltage value is between the first threshold value and the second threshold value and the heating time is reduced by 30 seconds, stopping heating, and carrying out acousto-optic reminding after the water is heated to the target temperature by the waste heat of the heating body.
When the voltage value is greater than or equal to the second threshold value, heating to the time period tstal minus 2 minutes, the microcontroller controls the quick charge power receiving module to request the quick charge source to adapt to the voltage between the first threshold value and the second threshold value, reducing the voltage and heating to the time period tstal minus 30 seconds, stopping heating, and carrying out acousto-optic reminding after the waste heat of the heating element heats water to the target temperature.
Wherein the first threshold is less than the second threshold.
When the user sets the heat preservation function, the microcontroller starts dynamic control heating when the current temperature is lower than the target temperature delta T.
In one implementation, when a user sets a heat preservation function, the microcontroller controls the fast charging power receiving module to request the fast charging power supply to adapt to a voltage smaller than or equal to a first threshold value for continuous heating and heat preservation.
In one implementation, the Bluetooth device may perform the microcontroller operating method.
In one implementation, when a user inputs by using a non-fast-charging source adapter, the adapter inputs voltage by default, and the microcontroller continuously works and heats until the target temperature is reached, stops heating, and reminds with sound and light according to the voltage detection value.
The USB electric heating cup and the working method thereof provide the most commonly used and most convenient USB interface for a user to be used as power input, and can perform dynamic heating control according to different voltages requested by a quick-charging power adapter of the user, thereby realizing quick and reliable heating and heat preservation.
The foregoing objects, features and advantages of the disclosure will be more readily apparent from the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
For a clearer description of the technical solutions of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present disclosure and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a USB electric cup according to the present disclosure.
Fig. 2 is another schematic structural view of a USB electric cup provided by the present disclosure.
Fig. 3 is a circuit block diagram of a USB electric cup provided by the present disclosure.
Fig. 4 is a schematic flow chart of a working method of the USB electric cup provided by the present disclosure.
Icon: 1-USB electric heating cup; 10-a cup body; 11-a housing; 12-an inner container; 13-backsheet; 14-fixing frame; 20-a heating element; 21-a temperature sensor; 30-a bracket; 31-a silica gel gasket; 40-a circuit board; 41-USB Type-C module; 42-a fast charge protocol module; a 43-power device module; 44-a power conversion module; 45-a main control module; 46-a man-machine interaction module; 50-base.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. The components of the present disclosure, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the disclosure, as claimed, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of this disclosure without making any inventive effort, are intended to be within the scope of this disclosure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition thereof is necessary in the following figures.
Referring to fig. 1, 2 and 3, in the present disclosure, a USB electric cup 1 includes a cup body 10, a heating body 20, a bracket 30, a circuit board 40 and a base 50. The cup body 10 comprises a metal shell 11, an inner container 12 and a bottom plate 13, a vacuum layer is formed among the shell 11, the inner container 12 and the bottom plate 13 to form a vacuum double-layer vacuum cup body, and fixing frames 14 are arranged on the bottom plate 13, wherein the number of the fixing frames 14 is 2 and used for installing the support 30. The negative film 13 is provided with a heating body 20 which adopts a polyimide electrothermal film mode, and the surface of the heating body is provided with a temperature sensor 21, the temperature sensor 21 transmits the temperature acquired in real time to a main control module 45 of the circuit board 40, and the technical specification of the heating body is 20V65W. A silica gel pad 31 is arranged between the heating element and the bracket for fixing and protecting the heating element to work reliably for a long time. The circuit board 40 comprises a USB Type-C module 41, a quick charge power receiving module 42, a power device module 43, a power conversion module 44, a main control module 45 and a man-machine interaction module 46. The circuit board 40 is mounted on a base 50, the base 50 is fixed on the bracket 30, and the outer surface of the base 50 is provided with a cavity exposing the USB Type-C socket of the circuit board 40 for connecting with a Type-C plug to connect with a power supply.
The USB Type-C module 41 includes a Type-C socket 411, the fast charging power receiving module 42 includes a power receiving chip 421 supporting USB PD, BC, QC and other protocols, the power device module 43 includes a field effect transistor 431 controlling voltage output, the power conversion module 44 includes a conversion chip 441 converting the output voltage of the fast charging power receiving module into the input voltage of the main control module, the main control module 45 includes a microcontroller 451, the man-machine interaction module 46 includes a touch key 461, and an acousto-optic device 462. The microcontroller 451 is used for controlling the fast charge power receiving chip 421 to request the fast charge power source to adapt to different voltage values, and controlling the fet 431 to output voltage to the heater 20 for dynamic heating control according to the current temperature obtained by the temperature sensor 21 in real time.
In one implementation, the cup body 10 includes a plastic shell, a metal liner cup body, and a fixing frame disposed on the bottom outside the liner.
In one implementation, the heater 20 is a tubular heating tube or a ceramic heating plate, and a temperature sensor is disposed at the bottom of the cup.
In the present disclosure, various modules such as the cup 10, the heating element 20, and the circuit board 40 may be selected, and flexibly assembled according to actual needs.
Referring to fig. 4 in combination, after a user connects a Type-C plug of the fast charging source adapter to a circuit board 40, and selects a heating mode through a touch key 61 of a man-machine interaction module 60, and determines a target temperature Tn, the USB electric cup working method includes the following steps:
s10, the microcontroller 451 controls the fast-charging power-receiving chip device 421 to request the fast-charging source to adapt to the highest voltage value;
s20, the fast charging power supply is adapted to output the highest voltage which can be output according to the value of the request voltage and input the highest voltage to a USB power supply line of the circuit board 40;
s30, the microcontroller 451 detects the voltage of the USB power supply line and dynamically controls the heating mode to the water temperature target temperature Tn according to the voltage value.
S31, dry combustion detection is carried out. The microcontroller 451 detects the initial temperature T0 by the temperature sensor 21, detects the temperature once every interval Δt1 minute, at most twice, and considers the normal heating if the temperature rise temperature of each interval does not exceed the experimental big data statistical interval temperature rise value Δt 1. If the temperature of the first temperature rise is more than or equal to 2 times of delta T1, the temperature is considered to be in a dry burning state, heating is stopped, and sound and light reminding is performed. If the temperature rise is greater than ΔT1 for both times, then the heating is deemed to be dry and stopped and alerted by the acousto-optic device 462.
S32, detecting the water quantity, and calculating the heating duration ttotal of the target temperature. The temperature is detected once every interval delta T2 minutes, the temperature is detected twice, the temperature rise delta T21 of each interval is used for comparing experimental big data to count the temperature rise delta T2 of the interval, the water quantity ratio is approximately equal to delta T2/1 delta T2, the target temperature heating duration ttotal approximately equal to delta T21/delta T2 is equal to the average value calculated by the two detection.
S33, dynamically controlling heating according to the current voltage value and the comparison threshold value:
when the voltage value is smaller than or equal to the first threshold value, the heating is stopped after the current voltage is continuously used for heating until the target temperature Tn, and the heating is reminded through the acousto-optic device 462;
when the voltage value is between the first threshold value and the second threshold value and the heating time period tstal is reduced by 30 seconds, the heating is stopped, and after the waste heat of the heating body 20 heats the water to the target temperature Tn, the water is reminded by the acousto-optic device 462.
When the voltage value is greater than or equal to the second threshold, heating is performed until the duration tstal is reduced by 2 minutes, the microcontroller 451 controls the fast charging power receiving chip 421 to request the fast charging power supply to adapt to the voltage between the first threshold and the second threshold, and when the duration tstal is reduced by 30 seconds, heating is stopped, and after the waste heat of the heating body 20 heats the water to the target temperature Tn, the water is reminded by the acousto-optic device 462.
Wherein the first threshold is less than the second threshold.
At S40, when the user sets the heat preservation function, the microcontroller 451 starts the dynamic control heating when the current temperature is lower than the target temperature by 5 ℃.
In one implementation, when the user sets the thermal insulation function, the microcontroller 451 controls the fast charge-up power chip 421 to request that the fast charge-up power adapter adapt to a voltage less than or equal to the first threshold value to continue heating and thermal insulation.
In one implementation, when a user uses a non-fast-charge source adapter input, the adapter input voltage is defaulted, and the microcontroller 441 continues to work to heat until the target temperature Tn and stops heating according to the voltage detection value, and reminds through the acousto-optic device 462.
In one implementation, the microcontroller 451 of the master control module 45 may be replaced with a bluetooth device, where the bluetooth device completes all working methods of the microcontroller 451, and may perform network communication with a smart phone or the like, and send information data to the smart phone and/or other devices of the internet of things.
The implementation principle of the method embodiment in the disclosure is similar to that of the USB electric cup embodiment, and the implementation principle of each embodiment portion may be referred to each other, and the corresponding content will not be repeated in each embodiment portion.
The USB electric heating cup and the working method thereof can achieve voltage dynamic, rapid and reliable heating under the power adapter supporting PD, BC and QC fast charging protocols.
The foregoing description of the preferred embodiments of the present disclosure is provided only and not intended to limit the disclosure so that various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (8)
1. The USB electric heating cup is characterized by comprising a cup body, a heating body, a support, a circuit board and a base, wherein the circuit board comprises an USB Type-C module, a quick-charging power receiving module, a power device module, a power conversion module, a main control module and a man-machine interaction module;
the microcontroller of the main control module is used for controlling the chip device of the fast charging and power receiving module to request the fast charging source to adapt to the highest voltage; the fast charging source outputs voltage to the USB power supply line of the circuit board according to the value of the request voltage; the microcontroller dynamically controls the heating mode to the target water temperature according to the voltage value; when the current temperature is lower than the target temperature by a certain value, the microcontroller starts a dynamic control heating mode to keep warm;
wherein, according to the dynamic control heating mode of voltage numerical value includes: calculating a target temperature heating duration, detecting an initial temperature T0, detecting a target temperature Tn, detecting a temperature once every interval delta T2 minutes, detecting twice, counting an interval temperature rise value delta T2 by comparing experimental big data through the temperature rise temperature delta T21 of each interval, counting an average value calculated by detecting twice the total of the target temperature heating duration T approximately equal to delta T21/delta T2 (Tn-T0), and carrying out dynamic heating control, wherein when the voltage value is smaller than or equal to a first threshold value, the dynamic heating control comprises continuously working and heating with the current voltage until the target temperature is reached, stopping heating, and carrying out acousto-optic reminding; when the voltage value is between the first threshold value and the second threshold value and the heating time is reduced by 30 seconds, stopping heating, and carrying out acousto-optic reminding after the water is heated to the target temperature by the waste heat of the heating body; when the voltage value is greater than or equal to a second threshold value, heating to the time period tstal minus 2 minutes, controlling a quick charge power receiving module by a microcontroller to request a quick charge source to adapt to the voltage between a first threshold value and the second threshold value, reducing the voltage, heating to the time period tstal minus 30 seconds, stopping heating, heating the water to the target temperature by using waste heat of a heating body, and performing acousto-optic reminding, wherein the first threshold value is smaller than the second threshold value.
2. The USB electric cup of claim 1, wherein the USB Type-C module includes a Type-C receptacle, the fast charge power module includes a power chip device supporting USB PD, BC, QC protocols, the power device module includes a field effect transistor device controlling voltage output, the power conversion module includes a conversion chip converting an output voltage of the fast charge power module into an input voltage of the main control module, the main control module includes one of a microcontroller or a bluetooth device, the human-machine interaction module includes a touch key device or a key switch device, and an acousto-optic device.
3. The USB electric cup of claim 1, wherein the cup comprises one of a vacuum double-layered cup, an outer plastic inner steel cup; the vacuum double-layer cup body comprises a shell, an inner container, a bottom plate and a fixing frame arranged on the bottom plate; the outer plastic inner steel cup body comprises a plastic shell, a metal liner and a fixing frame arranged at the bottom of the liner and used for installing a base and fixing a silica gel gasket for protecting a heating element.
4. The USB electric cup of claim 1, wherein the heater comprises one of a polyimide electric heating film, a ceramic heating sheet, and a tubular heating tube, with a specification of 20V65W, disposed at the bottom of the cup body.
5. The working method of the electric heating cup with the USB of the water cup is characterized by comprising the steps that a microcontroller of a main control module controls a chip device of a quick charging and power receiving module to request a quick charging source to adapt to the highest voltage; the fast charging source outputs voltage to the USB power supply line of the circuit board according to the value of the request voltage; the microcontroller dynamically controls the heating mode to the target water temperature according to the voltage value; when the current temperature is lower than the target temperature by a certain value, the microcontroller starts a dynamic control heating mode to keep warm;
wherein, according to the dynamic control heating mode of voltage numerical value includes: calculating a target temperature heating duration, detecting an initial temperature T0, detecting a target temperature Tn, detecting a temperature once every interval delta T2 minutes, detecting twice, counting an interval temperature rise value delta T2 by comparing experimental big data through the temperature rise temperature delta T21 of each interval, counting an average value calculated by detecting twice the total of the target temperature heating duration T approximately equal to delta T21/delta T2 (Tn-T0), and carrying out dynamic heating control, wherein when the voltage value is smaller than or equal to a first threshold value, the dynamic heating control comprises continuously working and heating with the current voltage until the target temperature is reached, stopping heating, and carrying out acousto-optic reminding; when the voltage value is between the first threshold value and the second threshold value and the heating time is reduced by 30 seconds, stopping heating, and carrying out acousto-optic reminding after the water is heated to the target temperature by the waste heat of the heating body; when the voltage value is greater than or equal to a second threshold value, heating to the time period tstal minus 2 minutes, controlling a quick charge power receiving module by a microcontroller to request a quick charge source to adapt to the voltage between a first threshold value and the second threshold value, reducing the voltage, heating to the time period tstal minus 30 seconds, stopping heating, heating the water to the target temperature by using waste heat of a heating body, and performing acousto-optic reminding, wherein the first threshold value is smaller than the second threshold value.
6. The method of claim 5, wherein the microcontroller dynamically controls the heating mode to a target water temperature according to the voltage value, including dry heat detection, water quantity detection, dynamic heating control according to the voltage value, and thermal insulation control.
7. The method of claim 6, wherein the dry-fire detection includes detecting an initial temperature T0, detecting a temperature every Δt1 minute at a maximum of two times, and considering normal heating if the temperature rise at each interval does not exceed the experimental big data statistical interval temperature rise value Δt1; if the temperature of the first temperature rise is more than or equal to 2 times of delta T1, the temperature is considered to be in a dry burning state, heating is stopped, and sound and light reminding is carried out; if the temperature rise of the two times is greater than delta T1, the heating is stopped and the sound and light reminding is carried out.
8. The method of claim 5, wherein the maintaining control includes the microcontroller initiating dynamic control of heating when the current temperature is less than the target temperature ΔT.
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| CN202110370314.0A CN112932261B (en) | 2021-04-06 | 2021-04-06 | USB electric heating cup and working method thereof |
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| CN202110370314.0A CN112932261B (en) | 2021-04-06 | 2021-04-06 | USB electric heating cup and working method thereof |
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