CN112524648A

CN112524648A - Waste heat prompting method for kitchen range and kitchen range

Info

Publication number: CN112524648A
Application number: CN201910885360.7A
Authority: CN
Inventors: 张雷; 鲁晔; 谢彤
Original assignee: Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2021-03-19
Also published as: WO2021052903A1; EP4031811A1

Abstract

A waste heat prompting method for a cooker and the cooker are provided, wherein the method comprises the following steps: acquiring the first time length of the last work of a heating module of the stove; determining a second time length according to at least the first time length; and sending out a prompt from the last time when the heating module finishes working until the second time length expires. By the scheme provided by the invention, the residual heat of the stove can be prompted after the stove is closed, so that a user is effectively prevented from being scalded.

Description

Waste heat prompting method for kitchen range and kitchen range

Technical Field

The embodiment of the invention relates to the technical field of cookers, in particular to a waste heat prompting method for a cooker and the cooker.

Background

The cooker is one of the essential appliances for daily family life of people, and provides a heating function for a user to cook food.

In the working process, the cooker can emit high heat to heat the cooker placed on the cooker, and the cooker usually needs a long time to be naturally cooled after being stopped. Especially, the surface of the cooker in contact with the cooker is usually exposed to an extremely high temperature for a long time in order to effectively heat the cooker, and the surface of the cooker is always scalded by the surface of the cooker if a user cleans the cooker after the cooker is closed and before the surface of the cooker is completely cooled because the surface of the cooker is usually directly exposed to the outside.

For example, the burner is still at a high temperature for a period of time after the gas range is closed, and if a user cleans the burner during the period of time, the burner is scalded.

The prior art can not provide an effective scheme to solve the user scald problem.

Disclosure of Invention

An object of an embodiment of the present invention is to provide an improved cooking utensil and a method for prompting waste heat of the cooking utensil.

Therefore, the embodiment of the invention provides a waste heat prompting method for a kitchen range, which comprises the following steps: acquiring the first time length of the last work of a heating module of the stove; determining a second time length according to at least the first time length; and sending out a prompt from the last time when the heating module finishes working until the second time length expires.

By adopting the scheme of the embodiment of the invention, the residual heat of the stove can be prompted after the stove is closed, and the user is effectively prevented from being scalded. Specifically, the second time length for sending the waste heat prompt is determined according to the first time length of the last work of the heating module, and compared with a mode of arranging a temperature sensor on the surface of the cooker to indicate the waste heat, the influence of factors such as the ambient temperature and the high temperature generated when the cooker works on the temperature sensor can be effectively avoided, and the estimation on the waste heat prompt time is more accurate. Further, the second time length is matched with the time of the cooling of the heating module, so that when the second time length expires and stops prompting, the heating module and the whole waste heat of the cooker can be naturally cooled to a proper temperature, and at the moment, the user can not be scalded even if the user directly contacts the heating module.

Optionally, the heating module includes a burner, and the obtaining a first time duration of the last operation of the heating module of the cooking appliance includes: a first time period of last combustion of the combustor is obtained. Therefore, for the gas stove, the first time length can be accurately determined according to the combustion time length of the combustor.

Optionally, the cooktop includes a flame detection module; the obtaining a first time period of last combustion of the combustor comprises: acquiring flame combustion information of the combustor detected by the flame detection module; when the flame combustion information is fire, timing is started; when the flame combustion information is flameout, ending timing; determining the time length from the beginning timing to the ending timing as the first time length. Therefore, the flame detection module is adopted to detect the flame combustion information of the burner, and the time length from the last combustion of the flame to the last extinguishment of the flame is determined as the first time length. Since flame combustion is a direct cause of the increase in the temperature of the hob, a more reasonable second period of time can be obtained based on the first period of burner flame combustion.

Optionally, the burner includes a burner head, the flame detection module is disposed in a combustion hole of the burner head to start timing in time when the cooker starts to work, so as to obtain an accurate first time length. For example, the flame detection module may be disposed inside the combustion hole.

Optionally, the kitchen range includes a valve body control module, and the valve body control module is used for controlling a gas valve body of the kitchen range to open or close; the obtaining a first time period of last combustion of the combustor comprises: acquiring control information of the valve body control module; when the control information is that the gas valve body is opened, timing is started; when the control information is that the gas valve body is closed, timing is finished; determining the time length from the beginning timing to the ending timing as the first time length. Therefore, by utilizing the relevance between the opening time of the gas valve body and the flame combustion time, the first time can be determined by recording the opening time of the gas valve body, and the first time can also reflect the flame combustion time of the combustor more accurately.

Optionally, the determining the second duration according to at least the first duration includes: searching a preset incidence relation table according to the first time length, wherein the preset incidence relation table records a plurality of candidate first time lengths and candidate second time lengths and incidence relations between the candidate first time lengths and the candidate second time lengths; determining a candidate second duration associated with the first duration as the second duration. Therefore, by predetermining the candidate second time length associated with different candidate first time lengths, the appropriate second time length can be determined according to the obtained first time length so as to obtain the second time length more suitable for the current waste heat of the cooker.

Optionally, before determining the second duration according to at least the first duration, the method further includes: and acquiring a third time length, wherein the third time length is the time length for sending a prompt after the last penultimate completion of the work of the heating module.

Optionally, the determining the second duration according to at least the first duration further includes: determining a larger duration of the candidate second duration and the third duration associated with the first duration as the second duration. Therefore, the second time length can be determined according to the longer heating time length in the last heating and the last but one heating to reasonably prolong the residual heat prompting time and ensure that the residual heat of the heating module and the cooker does not harm human bodies when the prompting is stopped.

Optionally, the second duration is proportional to the first duration. That is, the longer the heating time of the heating module is, the longer the cooling time required after the heating module finishes working is, and correspondingly, the longer the residual heat prompting time is.

Optionally, the heating module includes a heating coil, and the obtaining a first time length of the last operation of the heating module of the cooker includes: and acquiring the first time length of the last heating of the heating coil. Thus, for the induction cooker, the first time period can be accurately determined according to the operating time period of the heating coil.

The embodiment of the invention also provides a cooker, which comprises: a heating module; the timing module is used for acquiring the first time length of the last work of the heating module; the master control module is coupled with the timing module to receive the first time length, and the master control module is used for determining a second time length at least according to the first time length; and the alarm prompting module is coupled with the master control module to receive the second time length and is used for sending out a prompt from the last time when the heating module finishes working until the second time length expires.

By adopting the scheme of the embodiment of the invention, under the control of the master control module, the residual heat of the kitchen range can be prompted by the alarm prompting module after the kitchen range is closed, so that a user is effectively prevented from being scalded. Specifically, the second time length for sending the waste heat prompt is determined according to the first time length of the last work of the heating module, and compared with a mode of arranging a temperature sensor on the surface of the cooker to indicate the waste heat, the influence of factors such as the ambient temperature and the high temperature generated when the cooker works on the temperature sensor can be effectively avoided, and the estimation on the waste heat prompt time is more accurate. Further, the second time length is matched with the time of the cooling of the heating module, so that when the second time length expires and stops prompting, the heating module and the whole waste heat of the cooker can be naturally cooled to a proper temperature, and at the moment, the user can not be scalded even if the user directly contacts the heating module.

Optionally, the heating module comprises a burner, and the timing module comprises: and the first timing submodule is used for acquiring the first time length of the last combustion of the combustor. Therefore, for the gas stove, the first timing submodule can accurately determine the first time length according to the combustion time length of the combustor.

Optionally, the cooktop further comprises: the flame detection module is used for detecting flame combustion information of the combustor, and the master control module is coupled with the flame detection module to receive the flame combustion information; when the flame combustion information is on fire, the master control module controls the first timing submodule to start timing, when the flame combustion information is off, the master control module controls the first timing submodule to finish timing, and the time length from the start of timing to the end of timing is determined as the first time length. Therefore, the flame detection module is adopted to detect the flame combustion information of the burner, and the time length from the last combustion of the flame to the last extinguishment of the flame is determined as the first time length. Since flame burning is a direct cause of the rise in the temperature of the cooktop, a more reasonable second period of time can be obtained based on the first period of time by detecting the flame burning period of the burner.

Optionally, the burner comprises: a burner base having an air outlet; the burner is located on the burner base, the burner have with the air inlet of gas outlet adaptation, the air inlet is used for introducing the gas in the burner, flame detection module set up in the burner port of burner to in time begin the timing at cooking utensils beginning to work, in order to obtain accurate first time length.

Optionally, the cooktop further comprises: the valve body control module is used for controlling a gas valve body of the cooker to be opened or closed and is coupled with the master control module to send control information; when the control information is that the gas valve body is opened, the master control module controls the first timing submodule to start timing, and when the control information is that the gas valve body is closed, the master control module controls the first timing submodule to finish timing and determines the time length from the start of timing to the end of timing as the first time length. Therefore, by utilizing the relevance between the opening time of the gas valve body and the flame combustion time, the master control module and the first timing submodule can determine the first time through recording the opening time of the gas valve body, and the first time can also reflect the flame combustion time of the combustor more accurately.

Optionally, the general control module includes: the searching submodule is used for searching a preset incidence relation table according to the first time length, wherein the preset incidence relation table records a plurality of candidate first time lengths and candidate second time lengths and incidence relations between the candidate first time lengths and the candidate second time lengths; a determining submodule, configured to determine a candidate second duration associated with the first duration as the second duration. Therefore, by predetermining the candidate second time length associated with different candidate first time lengths, the appropriate second time length can be determined according to the obtained first time length so as to obtain the second time length more suitable for the current waste heat of the cooker.

Optionally, the general control module further includes: and the obtaining submodule is used for obtaining a third time length before determining a second time length at least according to the first time length, wherein the third time length is the time length for sending a prompt after the heating module finishes working for the last but one time.

Optionally, the general control module further includes: a selection submodule configured to determine a larger duration of the candidate second duration and the third duration associated with the first duration as the second duration. Therefore, the second time length can be determined according to the longer heating time length in the last heating and the last but one heating to reasonably prolong the residual heat prompting time and ensure that the residual heat of the heating module and the cooker does not harm human bodies when the prompting is stopped.

Optionally, the alarm prompting module includes: an LED indicator light; a buzzer. Therefore, the user can be clearly and visually prompted that the current waste heat of the cooker is high, and scalding caused by mistakenly touching the cooker by the user is avoided.

Optionally, the heating module comprises a heating coil, and the timing module comprises: and the second timing submodule is used for acquiring the first time length of the last heating of the heating coil. Therefore, for the induction cooker, the second timing submodule can accurately determine the first time length according to the working time length of the heating coil.

Drawings

Fig. 1 is a flowchart of a waste heat prompting method for a cooker according to an embodiment of the present invention;

FIG. 2 is a flowchart of one embodiment of step S102 of FIG. 1;

FIG. 3 is a schematic view of a partial structure of a cooking appliance according to an embodiment of the present invention;

FIG. 4 is a schematic view of the working principle of a cooker according to the embodiment of the invention;

in the drawings:

1-a kitchen range; 10-heating module; 11-a timing module; 111-a first timing submodule; 12-a master control module; 121-search sub-module; 122-a determination submodule; 123-an acquisition submodule; 124-selection submodule; 13-alarm prompt module; 14-a burner; 141-a furnace end; 142-a combustion hole; 142 a-inner ring combustion holes; 142 b-outer ring combustion holes; 144-an ignition needle; 15-a panel; 16-a flame detection module; 17-a valve body control module; 18-an ignition module; 19-ignition triggering module.

Detailed Description

As the background art says, the prior art can not provide an effective scheme to indicate the kitchen range waste heat, and because the current waste heat condition of the kitchen range is not known, a user is easily scalded in daily use.

In order to solve the technical problem, an embodiment of the present invention provides a waste heat prompting method for a kitchen range, including: acquiring the first time length of the last work of a heating module of the stove; determining a second time length according to at least the first time length; and sending out a prompt from the last time when the heating module finishes working until the second time length expires.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a flowchart of a waste heat prompting method for a cooker according to an embodiment of the present invention.

Specifically, referring to fig. 1, the method for prompting the waste heat of the kitchen range according to the embodiment may include the following steps:

step S101, acquiring the first time length of the last work of a heating module of the stove;

step S102, determining a second time length at least according to the first time length;

and step S103, sending out a prompt from the last time when the heating module finishes working until the second time length expires.

In one or more embodiments, the cooktop can be selected from: gas stoves, induction cookers, and electromagnetic-gas combination cookers.

In particular, different types of cookers may have heating modules of different operating principles.

For example, the heating module of a gas range may include a burner to provide heat by burning gas.

For another example, the heating module of the induction cooker may include a heating coil to achieve a heating effect based on electromagnetic radiation generated when the heating coil is energized.

For another example, the combined electromagnetic-gas cooker may be integrated with at least one electromagnetic cooker and at least one gas cooker, and accordingly, the heating module may include at least one burner and at least one heating coil.

In one or more embodiments, when the heating module includes a burner, the step S101 may include the steps of: a first time period of last combustion of the combustor is obtained. Therefore, for the cooking bench heated by the burner in the gas stove or the electromagnetic-gas combined stove, the first time length can be accurately determined according to the burning time length of the burner.

Specifically, the first period may be determined as a period between the last ignition of the burner and the last extinction.

Accordingly, the step S103 may include: and sending out a prompt from the last flameout of the burner until the second time length expires.

In one or more embodiments, the cooktop can include a flame detection module to detect flame combustion information of the burner.

For example, the burner may include a burner head, and the flame detection module may be disposed inside a combustion hole of the burner head to start timing in time when the burner flame starts to burn, so as to obtain an accurate first time length.

In one implementation, the obtaining the first duration of the last combustion of the combustor may include: acquiring flame combustion information of the combustor detected by the flame detection module; when the flame combustion information is fire, timing is started; when the flame combustion information is flameout, ending timing; determining the time length from the beginning timing to the ending timing as the first time length.

For example, the flame detection module may detect whether the burner is on or off in real time and begin timing from when ignition is detected until the burner is off.

Therefore, the flame detection module is adopted to detect the flame combustion information of the burner, and the time length from the last combustion of the flame to the last extinguishment of the flame is determined as the first time length. Since flame combustion is a direct cause of the increase in the temperature of the hob, a more reasonable second period of time can be obtained based on the first period of burner flame combustion.

Further, based on the detection result of the flame detection module, the opening or closing of the gas valve body of the stove can be controlled more accurately, so that gas leakage is avoided, and the safety is improved.

In one implementation, the number of the flame detection modules may be multiple and distributed in different areas of the combustion hole, each flame detection module independently counts time according to detected flame combustion information, and the first time duration is generated based on respective timing results of the multiple flame detection modules.

For example, the timing result having the largest value may be selected from the timing results of the plurality of flame detection modules as the first time length, so as to prevent a timing error due to accidental extinction of flames in the part of the combustion holes.

For another example, an average of timing results of each of the plurality of flame detection modules may be determined as the first period of time.

In one implementation, when the burner includes multiple ring combustion holes, the flame detection module may be disposed beside an inner ring combustion hole of the multiple ring combustion holes.

In one implementation, when the burner includes multiple rings of combustion holes, corresponding flame detection modules may be respectively disposed in each ring of combustion holes, each flame detection module independently clocks according to detected flame combustion information, and the first duration is generated based on respective clocking results of the multiple flame detection modules.

For example, the timing result with the largest value can be selected from the timing results of the flame detection modules as the first time length so as to eliminate the influence of the user on the timing result by adjusting the flame output of the burner halfway and accidentally extinguishing the flame on a part of rings.

Further, the positions and the number of the flame detection modules arranged on the different ring combustion holes can be the same or different.

In one or more embodiments, the cooktop can include a valve body control module for controlling a gas valve body of the cooktop to open or close.

In one implementation, the obtaining the first duration of the last combustion of the combustor may include: acquiring control information of the valve body control module; when the control information is that the gas valve body is opened, timing is started; when the control information is that the gas valve body is closed, timing is finished; determining the time length from the beginning timing to the ending timing as the first time length.

Therefore, by utilizing the relevance between the opening time of the gas valve body and the flame combustion time, the first time can be determined by recording the opening time of the gas valve body, and the first time can also reflect the flame combustion time of the combustor more accurately.

In one or more embodiments, when the heating module includes a heating coil, the step S101 may include the steps of: and acquiring the first time length of the last heating of the heating coil. Therefore, for the cooking bench which is heated by the heating coil in the electromagnetic stove or the electromagnetic-gas combined stove, the first time length can be accurately determined according to the working time length of the heating coil.

Specifically, the first period may be determined as a period in which the heating coil is last energized.

Accordingly, the step S103 may include: and sending out a prompt from the last power-off of the heating coil until the second time length expires.

In one or more embodiments, referring to fig. 2, the step S102 may include the steps of:

step S1021, searching a preset incidence relation table according to the first time length, wherein the preset incidence relation table records a plurality of candidate first time lengths and candidate second time lengths and incidence relations between the candidate first time lengths and the candidate second time lengths;

in step S1022, the candidate second duration associated with the first duration is determined as the second duration.

Therefore, by predetermining the candidate second time length associated with different candidate first time lengths, the appropriate second time length can be determined according to the obtained first time length so as to obtain the second time length more suitable for the current waste heat of the cooker.

In one implementation, table 1 exemplarily shows possible forms of the preset association table. The candidate first time length may be a numerical value interval, and when the first time length determined in step S101 falls into one of the numerical value intervals, the candidate second time length corresponding to the numerical value interval is determined as the second time length of the current residual heat prompt.

TABLE 1 Preset Association Table

Candidate first time length	Candidate second duration
		0 second to 40 seconds	0 minute
41 to 300 seconds	15 minutes
		301 seconds to 20 minutes	30 minutes
Greater than 20 minutes	40 minutes

The specific values of each candidate first duration and the corresponding candidate second duration in table 1 may be determined through experiments and the like. In practical application, the number of the candidate first durations and the size of the numerical interval of each candidate first duration in table 1 may be flexibly adjusted as needed. For example, the specific values of the candidate first time period and/or the candidate second time period in table 1 may be adjusted according to the ambient temperature of the kitchen range setting position.

In one or more embodiments, the second duration is proportional to the first duration. That is, the longer the heating time of the heating module is, the longer the cooling time required after the heating module finishes operating is, and correspondingly, the longer the remaining heat indication time (i.e., the second time duration) is.

In one or more embodiments, before the step S102, the method for prompting residual heat in this embodiment may further include the steps of: and acquiring a third time length, wherein the third time length is the time length for sending a prompt after the last penultimate completion of the work of the heating module.

For example, when the heating module is a burner, the third duration may be a second duration of residual heat prompting at a last penultimate shutdown of the burner.

For another example, when the heating module is a heating coil, the third time period may be a second time period in which the heating coil is used for prompting the residual heat when the energization of the heating coil is stopped last but last.

In one implementation, the cooktop may include a storage module to store a second length of time of a last indication of residual heat historically. When the heating module works again, the data stored in the storage module is the third time length relative to the candidate second time length determined according to the first time length after the heating module finishes working this time.

Further, the step S102 may further include the steps of: determining a larger duration of the candidate second duration and the third duration associated with the first duration as the second duration.

Therefore, the second time length can be determined according to the longer heating time length in the last heating and the last but one heating to reasonably prolong the residual heat prompting time and ensure that the residual heat of the heating module and the cooker does not harm human bodies when the prompting is stopped.

For example, when the last penultimate combustion time of the burner is relatively long, and the last combustion is actually a re-strike followed by a shut-down, the candidate second time period determined based on the last flame combustion time period of the burner may be short. However, since the last but one time of long-time combustion of the combustor is in a state of high temperature, the present embodiment considers the second time periods corresponding to the last two operating time periods of the combustor comprehensively, and selects a longer time period as the second time period actually used for prompting the residual heat.

Further, after the second duration is selected from the candidate second duration and the third duration, the newly selected second duration may be updated to the storage module, for example, the data originally stored in the storage module is overwritten, so as to be used when the heating module operates next time.

In one or more embodiments, in the step S103, a prompt may be sent in the form of sound, light, electricity, or the like, so that a user can intuitively know the current waste heat condition of the cooker.

For example, a Light Emitting Diode (LED) indicator may be mounted on the gas valve body, the LED indicator may be controlled to flash at a certain frequency to give a prompt, and when the second duration expires, the LED indicator may be turned off. Further, within the second duration, the frequency of flashing of the LED indicator light may be slower and slower as time progresses. Further, the left gas valve body and the right gas valve body of the stove can be respectively provided with an LED indicating lamp.

For another example, a buzzer may be mounted on the cooktop to sound a prompt, and when the second duration expires, the buzzer is turned off.

FIG. 3 is a schematic view of the external structure of a cooking appliance according to an embodiment of the present invention; FIG. 4 is a schematic view of the internal structure of a cooking appliance according to an embodiment of the present invention.

In particular, with reference to fig. 3 and 4, the hob 1 may comprise: a heating module 10; the timing module 11 is configured to obtain a first time length of the last operation of the heating module 10; a master control module 12 coupled to the timing module 11 for receiving the first time length, wherein the master control module 12 is configured to determine a second time length according to at least the first time length; and the alarm prompting module 13 is coupled with the master control module 12 to receive the second time length, and is used for sending out a prompt from the last time that the heating module 10 finishes working until the second time length expires.

By adopting the scheme of the embodiment of the invention, under the control of the master control module 12, the waste heat of the cooker 1 can be prompted by the alarm prompting module 13 after the cooker 1 is closed, so that the user is effectively prevented from being scalded. Specifically, the second time length for sending the waste heat prompt is determined according to the first time length of the last work of the heating module 10, and compared with a mode of arranging a temperature sensor on the surface of the cooker 1 to indicate the waste heat, the influence of factors such as the ambient temperature and the high temperature generated when the cooker 1 works on the temperature sensor can be effectively avoided, and the estimation on the waste heat prompt time is more accurate. Further, the second duration is matched with the time of cooling of the heating module 10, so that when the second duration expires and is stopped for prompting, the overall waste heat of the heating module 10 and the cooker 1 can be naturally cooled to a proper temperature, and at the moment, the user cannot be scalded even if the user directly contacts the heating module 10.

In one implementation, the modules shown in fig. 4 may be integrated into an igniter (not shown) of the cooktop 1.

In a specific implementation, the general control module 12 may include a memory (not shown) and a processor (not shown), the memory stores a computer program, and the computer program is executed by the processor to implement the steps of the method technical solution as shown in fig. 1 and fig. 2. Accordingly, for the explanation of each noun in this embodiment, reference may be made to the description in fig. 1 and fig. 2, which is not repeated herein.

In one embodiment, the general control module 12 may be a Micro Controller Unit (MCU).

In one implementation, the timing module 11 may be a timer.

In one implementation, the timing module 11 and the overall control module 12 may be coupled in a wired or wireless manner. Alternatively, the timing module 11 and the general control module 12 can be integrated on the same integrated circuit chip. Alternatively, the timing module 11 may be part of the overall control module 12.

In one embodiment, in response to the heating module 10 ending its operation, the general control module 12 may send a start instruction to the alarm prompting module 13 to instruct the alarm prompting module 13 to send a prompt. Further, the starting instruction may include the second time length, and the starting time of the alarm prompting module 13 is the second time length.

In one or more embodiments, during the alarm period of the alarm prompting module 13, if the heating module 10 is operated again, the alarm prompting module 13 may stop the alarm, and the general control module 12 may control the timing module 11 to count again to obtain a new first time length.

Further, when the heating module 10 finishes working, the general control module 12 determines a candidate second time length according to the new first time length, compares the candidate second time length with the second time length of the previous alarm (i.e. the third time length), and determines the time length with a larger value as the second time length of the current alarm.

In one or more embodiments, with continued reference to fig. 3 and 4, the heating module 10 may include a burner 14.

Specifically, the combustor 14 may include: a burner base (not shown) which may have an air outlet (not shown); a burner 141 on the burner base, the burner 141 having an air inlet (not shown) adapted to the air outlet, the air inlet being used to introduce gas into the burner 141.

In one embodiment, the cooking range 1 may include a panel 15, the burner base and the burner 141 may be respectively located at two sides of the panel 15, and the panel 15 is provided with a through hole for communicating the air outlet and the air inlet. In actual use, the burner 141 is exposed, and the burner base is covered by the panel 15 and is not visible to the outside.

In one embodiment, the burner 141 may include at least one ring of combustion holes 142, and fig. 4 illustrates the burner 141 including an inner ring of combustion holes 142a and an outer ring of combustion holes 142 b.

In one or more embodiments, the timing module 11 may include: a first timing submodule 111 is configured to obtain a first duration of the last combustion of the burner 14. Thus, for a gas range, the first timing submodule 111 can accurately determine the first time period according to the combustion time period of the burner 14.

In one or more embodiments, with continued reference to fig. 3 and 4, the cooktop 1 can further include: a flame detection module 16 for detecting flame combustion information of the burner 14, the general control module 12 being coupled to the flame detection module 16 for receiving the flame combustion information.

For example, the flame detection module 16 may be disposed in the inner ring combustion hole 142a of the burner 141 to start timing in time when the cooking stove 1 starts to operate, so as to obtain an accurate first time period.

For example, the flame detection module 16 may be disposed adjacent the ignition pin 144.

In one implementation, the flame detection module 16 can detect the flame combustion information of the inner ring combustion holes 142a and send the detected flame combustion information to the general control module 12.

When the flame combustion information is on fire, the general control module 12 may control the first timing submodule 111 to start timing, and when the flame combustion information is off, the general control module 12 may control the first timing submodule 111 to end timing, and determine a time length from the start of timing to the end of timing as the first time length.

Thus, the flame combustion information of the burner 14 is detected using the flame detection module 16, and the time period from the last combustion of the flame to the last extinction is determined as the first time period. Since flame burning is a direct cause of the temperature rise of the hob 1, a more reasonable second period of time can be obtained on the basis of the first period of time by detecting the period of flame burning of the burner 14.

In one implementation, the number of flame detection modules 16 may be multiple and distributed at different locations of the inner and outer

ring burner holes

142a, 142 b.

In one implementation, the flame detection module 16 may detect the flame status of the burner 14 in real time and send the flame burning information when the flame status changes. For example, when the flame state of the burner 14 changes from the flameout state to the combustion state, flame combustion information whose contents are ignition is transmitted. For another example, when the flame state of the burner 14 is switched from the combustion state to the flame-out state, flame combustion information indicating that the flame is extinguished is transmitted.

In one implementation, the flame detection module 16 may periodically monitor the flame status of the burner 14 to reduce power consumption.

In one or more embodiments, with continued reference to fig. 4, the cooktop 1 can further include: a valve body control module 17 for controlling the opening or closing of a gas valve body (not shown) of the cooker 1, wherein the valve body control module 17 is coupled with the master control module 12 for sending control information.

When the control information is that the gas valve body is opened, the master control module 12 can control the first timing submodule 111 to start timing, and when the control information is that the gas valve body is closed, the master control module 12 can control the first timing submodule 111 to end timing, and determine the time length from the start of timing to the end of timing as the first time length.

For example, at the same time as/before/after the opening of the gas valve body is controlled, the valve body control module 17 may transmit control information whose contents are the opening of the gas valve body to the overall control module 12, and in response to receiving the control information, the overall control module 12 may instruct the first timing sub-module 111 to start timing. Further, at the same time as/before/after the closing of the gas valve body is controlled, the valve body control module 17 may transmit control information whose content is the closing of the gas valve body to the overall control module 12, and in response to receiving the control information, the overall control module 12 may instruct the first timing sub-module 111 to stop timing. The first time period may thus be obtained by the first timing submodule 111 continuously recording the flame burning time of the burner 14.

Therefore, by utilizing the correlation between the opening duration of the gas valve and the flame combustion duration, the master control module 12 and the first timing submodule 111 can determine the first duration by recording the opening duration of the gas valve, and the first duration can also reflect the flame combustion duration of the burner 14 more accurately.

In one or more embodiments, with continued reference to fig. 4, the cooktop 1 can further include: and an ignition module 18 for generating high voltage pulses required for ignition.

Further, the hob 1 may further comprise: and the ignition triggering module 19 is used for starting an ignition sequence.

In one or more embodiments, with continued reference to FIG. 4, the grandmaster module 12 may include: the searching submodule 121 is configured to search a preset association table according to the first time length, where the preset association table records a plurality of candidate first time lengths and candidate second time lengths, and an association relationship between the candidate first time lengths and the candidate second time lengths; a determining submodule 122, configured to determine a candidate second duration associated with the first duration as the second duration. Therefore, by predetermining the candidate second time length associated with different candidate first time lengths, a proper second time length can be determined according to the obtained first time length so as to obtain a second time length more suitable for the residual heat of the cooker 1 at this time.

In one implementation, after determining the second duration, the determining submodule 122 may send the second duration to the timing module 11. Further, after the burner 14 is turned off, the master control module 12 can control the alarm prompt module 13 to start prompting, at this time, the timing module 11 can play a role of a timer, starts timing from the start of prompting, and the duration is the second duration, and when the second duration expires, the master control module 12 controls the alarm prompt module 13 to end prompting. Or, when the second duration expires, the alarm prompting module 13 automatically stops prompting.

In one or more embodiments, with continued reference to fig. 4, the grandmaster module 12 may further include: the obtaining submodule 123 is configured to obtain a third time length before determining a second time length at least according to the first time length, where the third time length is a time length of a prompt sent by the heating module 10 after finishing work last but last.

In one implementation, the hob 1 may further comprise a storage module (not shown) for storing the third duration. The fetch sub-module 123 may be coupled to the storage module to read the third duration. Further, after the burner 14 is turned off each time, the master control module 12 may update the determined second time duration to the storage module to serve as a third time duration for the next waste heat prompt.

For example, the storage module may be a memory.

In one implementation, the memory module may be integrated with the overall control module 12. Alternatively, the storage modules may be separate from the overall control module 12 and coupled by wire or wirelessly.

In one embodiment, the storage module may be externally disposed on the cooker 1, and if the storage module may be a cloud, the total control module 12 may communicate with the cloud to obtain the third duration.

In one or more embodiments, with continued reference to fig. 4, the grandmaster module 12 may further include: a selecting submodule 124 for determining the larger of the candidate second duration associated with the first duration and the third duration as the second duration. Therefore, the second time length can be determined according to the longer heating time length in the last heating and the last but one heating to reasonably prolong the residual heat prompting time and ensure that the residual heat of the heating module 10 and the cooker 1 does not harm human bodies when the prompting is stopped.

In one implementation, after determining the second duration, the selection submodule 124 may send the second duration to the timing module 11. Further, after the burner 14 is turned off, the master control module 12 can control the alarm prompt module 13 to start prompting, at this time, the timing module 11 can play a role of a timer, starts timing from the start of prompting, and the duration is the second duration, and when the second duration expires, the master control module 12 controls the alarm prompt module 13 to end prompting. Or, when the second duration expires, the alarm prompting module 13 automatically stops prompting.

In one or more embodiments, the second duration is proportional to the first duration. That is, the longer the heating time of the heating module 10 is, the longer the cooling time required after the heating module 10 finishes operating is, and correspondingly, the longer the remaining heat indication time is.

In one or more embodiments, the alarm prompting module 13 may include: an LED indicator light; a buzzer. Therefore, the user can be clearly and visually prompted that the current waste heat of the cooker 1 is high, and scalding caused by mistakenly touching the cooker by the user is avoided.

In one or more embodiments, the heating module 10 may include a heating coil (not shown), and the timing module 11 may include: and the second timing submodule (not shown) is used for acquiring the first time length of the last heating of the heating coil. Therefore, for the induction cooker, the second timing submodule can accurately determine the first time length according to the working time length of the heating coil.

It should be understood that, in the embodiment of the present invention, the Processor may be a Central Processing Unit (CPU), and the Processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of illustration and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (Static RAM), Dynamic RAM (Dynamic RAM), Synchronous DRAM (Synchronous DRAM), SDRAM (Synchronous DRAM), DDR (Double Data Rate SDRAM), edram (Enhanced SDRAM), SDRAM (Synchronous DRAM), SLDRAM (Synchronous connected DRAM), and dlram (DR-RAM).

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even if only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently expressed. In particular implementations, features from one or more dependent claims may be combined with features of the independent claims and features from respective independent claims may be combined in any appropriate manner and not merely in the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A waste heat prompting method for a kitchen range is characterized by comprising the following steps:

acquiring the first time length of the last work of a heating module of the stove;

determining a second time length according to at least the first time length;

and sending out a prompt from the last time when the heating module finishes working until the second time length expires.

2. The waste heat prompting method of claim 1, wherein the heating module comprises a burner, and the obtaining a first time duration of a last operation of the heating module of the cooking appliance comprises:

a first time period of last combustion of the combustor is obtained.

3. A waste heat prompting method as defined in claim 2, wherein the cooker comprises a flame detection module; the obtaining a first time period of last combustion of the combustor comprises:

acquiring flame combustion information of the combustor detected by the flame detection module;

when the flame combustion information is fire, timing is started;

when the flame combustion information is flameout, ending timing;

determining the time length from the beginning timing to the ending timing as the first time length.

4. A waste heat prompting method as defined in claim 3, wherein the burner comprises a burner head, and the flame detection module is disposed at a combustion hole of the burner head.

5. The waste heat prompting method of claim 2, wherein the cooker comprises a valve body control module, and the valve body control module is used for controlling a gas valve body of the cooker to be opened or closed; the obtaining a first time period of last combustion of the combustor comprises:

acquiring control information of the valve body control module;

when the control information is that the gas valve body is opened, timing is started;

when the control information is that the gas valve body is closed, timing is finished;

6. A method as claimed in claim 1, wherein determining the second duration based at least on the first duration comprises:

searching a preset incidence relation table according to the first time length, wherein the preset incidence relation table records a plurality of candidate first time lengths and candidate second time lengths and incidence relations between the candidate first time lengths and the candidate second time lengths;

determining a candidate second duration associated with the first duration as the second duration.

7. A method as claimed in claim 6, further comprising, before determining the second duration based at least on the first duration:

and acquiring a third time length, wherein the third time length is the time length for sending a prompt after the last penultimate completion of the work of the heating module.

8. A method as claimed in claim 7, wherein determining the second duration based at least on the first duration further comprises:

determining a larger duration of the candidate second duration and the third duration associated with the first duration as the second duration.

9. A method as claimed in claim 1, wherein the second duration is proportional to the first duration.

10. The waste heat prompting method of claim 1, wherein the heating module comprises a heating coil, and the obtaining a first time length of a last operation of the heating module of the cooker comprises:

and acquiring the first time length of the last heating of the heating coil.

11. Hob (1), characterized in that it comprises:

a heating module (10);

the timing module (11) is used for acquiring the first time length of the last work of the heating module (10);

a master control module (12) coupled to the timing module (11) to receive the first time length, the master control module (12) being configured to determine a second time length at least according to the first time length;

and the alarm prompt module (13) is coupled with the master control module (12) to receive the second time length and is used for sending out a prompt from the last time when the heating module (10) finishes working until the second time length expires.

12. Hob (1) according to claim 11, characterized in that said heating module (10) comprises a burner (14), said timing module (11) comprising:

a first timing submodule (111) for obtaining a first duration of a last combustion of said burner (14).

13. Hob (1) according to claim 12, further comprising:

a flame detection module (16) for detecting flame combustion information of the burner (14), the general control module (12) being coupled with the flame detection module (16) to receive the flame combustion information;

when the flame combustion information is on fire, the master control module (12) controls the first timing submodule (111) to start timing, when the flame combustion information is off, the master control module (12) controls the first timing submodule (111) to finish timing, and the time length from the start of timing to the end of timing is determined as the first time length.

14. Hob (1) according to claim 13, characterized in that said burner (14) comprises: a burner base having an air outlet;

a furnace end (141) located on the furnace end base, the furnace end (141) have with the air inlet of gas outlet adaptation, the air inlet is used for introducing the gas in furnace end (141), flame detection module (16) set up in burner port (142) of furnace end (141).

15. Hob (1) according to claim 12, further comprising:

the valve body control module (17) is used for controlling a gas valve body of the cooker (1) to be opened or closed, and the valve body control module (17) is coupled with the master control module (12) to send control information;

when the control information is that the gas valve body is opened, the master control module (12) controls the first timing submodule (111) to start timing, and when the control information is that the gas valve body is closed, the master control module (12) controls the first timing submodule (111) to finish timing, and determines the time length from the start of timing to the end of timing as the first time length.

16. Hob (1) according to claim 11, characterized in that said master control module (12) comprises: the searching submodule (121) is used for searching a preset incidence relation table according to the first time length, wherein the preset incidence relation table records a plurality of candidate first time lengths and candidate second time lengths and incidence relations between the candidate first time lengths and the candidate second time lengths;

a determination submodule (122) for determining a candidate second duration associated with the first duration as the second duration.

17. Hob (1) according to claim 16, characterized in that said master control module (12) further comprises:

the obtaining submodule (123) is configured to obtain a third time length before determining a second time length at least according to the first time length, where the third time length is a time length for sending a prompt after the heating module (10) finishes working last but one time.

18. Hob (1) according to claim 17, characterized in that said master control module (12) further comprises:

a selection submodule (124) for determining the greater of the candidate second duration associated with the first duration and the third duration as the second duration.

19. Hob (1) according to claim 11, characterized in that said second period of time is proportional to said first period of time.

20. Hob (1) according to claim 11, characterized in that said alarm prompt module (13) comprises: an LED indicator light; a buzzer.

21. Hob (1) according to claim 11, characterized in that said heating module (10) comprises a heating coil, said timing module (11) comprising:

and the second timing submodule is used for acquiring the first time length of the last heating of the heating coil.