CN114305089B - Noise reduction method for water boiler - Google Patents
Noise reduction method for water boiler Download PDFInfo
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- CN114305089B CN114305089B CN202011045048.6A CN202011045048A CN114305089B CN 114305089 B CN114305089 B CN 114305089B CN 202011045048 A CN202011045048 A CN 202011045048A CN 114305089 B CN114305089 B CN 114305089B
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Abstract
The embodiment of the application discloses a noise reduction method of a water boiler, which comprises the following steps: preheating: heating the slurry temperature to a first temperature using a first heating power; noise reduction and heating stage: heating the slurry temperature from the first temperature to a second temperature using a second heating power; the second heating power is smaller than the first heating power; boiling: heating the slurry temperature from the second temperature to a third temperature using a third heating power; the third heating power is greater than the second heating power. By the embodiment scheme, noise generated during water heating is reduced.
Description
Technical Field
The present application relates to household appliance controlling technology, and is especially noise reducing method for water boiler.
Background
In the water boiling process of the existing water boiler, larger noise is generated due to the state change of water in the water boiling process. At present, a certain low-noise water boiler is provided with double heating pipes, so that the water temperature is more uniform in the heating process, and the noise is reduced; but the cost of the double heating pipes is increased, thereby increasing the cost of the whole machine. In addition, under the condition that the water heating power of the existing water boiler is kept unchanged and the cost is not increased, if the existing water boiler is heated by fixed heating power in the water heating process, noise generated by water heating cannot be avoided.
Disclosure of Invention
The embodiment of the application provides a noise reduction method of a water boiler, which can reduce noise generated during water boiling.
The embodiment of the application provides a noise reduction method of a water boiler, which can comprise the following steps:
preheating: heating the slurry temperature to a first temperature using a first heating power;
noise reduction and heating stage: heating the slurry temperature from the first temperature to a second temperature using a second heating power; the second heating power is smaller than the first heating power;
boiling: heating the slurry temperature from the second temperature to a third temperature using a third heating power; the third heating power is greater than the second heating power.
In an exemplary embodiment of the present application, the method may further include: boiling stage;
boiling: heating the slurry temperature from the third temperature to boiling using a fourth heating power; the fourth heating power is less than the third heating power.
In an exemplary embodiment of the present application, the noise reduction heating stage may include: a first sub-stage and a second sub-stage; the second heating power includes: a first sub-heating power and a second sub-heating power;
a first sub-stage: heating the slurry temperature from the first temperature to a first sub-temperature using a first sub-heating power; the first sub-heating power is less than the first heating power;
a second sub-stage: heating the slurry temperature from the first sub-temperature to the second temperature using a second sub-heating power; the second sub-heating power is less than the first sub-heating power; the third heating power is greater than the first sub-heating power.
In an exemplary embodiment of the present application, the first temperature may satisfy: 38-42 ℃;
the second temperature may satisfy: 68-72 ℃;
the third temperature may satisfy: 83-87 ℃;
the first heating power may be: full power P;
the second heating power may satisfy: 3P/4-5P/6;
the third heating power may be: full power P;
the fourth heating power may satisfy: 3P/4-P/3.
In an exemplary embodiment of the present application, the first sub-temperature may satisfy: 48-52 ℃;
the first sub-heating power may satisfy: 3P/4-5P/6;
the second sub-heating power may satisfy: 3P/4-P/3.
In an exemplary embodiment of the present application, the method may further include: when the heating power of the water boiler is adjusted after entering different stages, if the heating power of the water boiler after adjustment is detected to be larger than or equal to a preset upper power limit value, the heating power is adjusted to be the upper power limit value; if the heating power of the adjusted water boiler is detected to be smaller than the preset upper power limit value, the adjusted heating power is kept.
In an exemplary embodiment of the present application, the method may further include:
when the boiling water pot is used for the first time, the altitude boiling point T corresponding to the current altitude is obtained Boiling point of ；
According to the altitude boiling point T Boiling point of Temperature values for entering the different phases are determined.
In an exemplary embodiment of the present application, the altitude boiling point T corresponding to the current altitude is obtained Boiling point of May include:
heating water with full power until boiling;
detecting the rising slope of the water temperature in the water boiler in the heating process;
when the change of the rising slope of the water temperature in the preset time period is smaller than or equal to a preset change threshold value, determining that the currently detected temperature is the altitude boiling point T corresponding to the current altitude Boiling point of 。
In an exemplary embodiment of the present application, the temperature T is determined based on the altitude Boiling point of Determining the temperature value to enter the different phases may include: the different temperature values are adjusted according to the following relation:
T＝T 0 -(100℃-T boiling point of )；
Wherein T is 0 To adjust the temperature value before adjustment, T is the temperature value after adjustment.
In an exemplary embodiment of the present application, the method may further include:
in the water heating process, the change of the mains voltage is detected in real time, and the heating power is adjusted according to the change of the mains voltage.
Compared with the related art, the embodiment of the application can comprise the following steps: preheating: heating the slurry temperature to a first temperature using a first heating power; noise reduction and heating stage: heating the slurry temperature from the first temperature to a second temperature using a second heating power; the second heating power is smaller than the first heating power; boiling: heating the slurry temperature from the second temperature to a third temperature using a third heating power; the third heating power is greater than the second heating power. By the embodiment scheme, noise generated during water heating is reduced.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide an understanding of the principles of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the principles of the application.
FIG. 1 is a flow chart of a noise reduction method of a water boiler according to an embodiment of the application.
Detailed Description
The present application has been described in terms of several embodiments, but the description is illustrative and not restrictive, and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the described embodiments. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or in place of any other feature or element of any other embodiment unless specifically limited.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of the present application may also be combined with any conventional features or elements to form a unique inventive arrangement as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive arrangements to form another unique inventive arrangement as defined in the claims. It is therefore to be understood that any of the features shown and/or discussed in the present application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Further, various modifications and changes may be made within the scope of the appended claims.
Furthermore, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps are possible as will be appreciated by those of ordinary skill in the art. Accordingly, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
The embodiment of the application provides a noise reduction method of a water boiler, as shown in fig. 1, the method can comprise the following steps of S101-S103:
s101, preheating: heating the slurry temperature to a first temperature using a first heating power;
s102, noise reduction and heating stages: heating the slurry temperature from the first temperature to a second temperature using a second heating power; the second heating power is smaller than the first heating power;
s103, water boiling stage: heating the slurry temperature from the second temperature to a third temperature using a third heating power; the third heating power is greater than the second heating power.
In the exemplary embodiment of the application, in the water boiling process, the water temperature in the water boiling pot is detected in real time, and the state of water in the water boiling pot is judged according to the water temperature; the water state includes: generating air bubble condition and/or rolling condition, and adjusting heating power of the water boiler according to the state of the water so as to reduce noise under the condition of noise caused by the change of the state of the water.
In the exemplary embodiment of the application, as shown by research and analysis, small bubbles are generated at the bottom of the water boiler in the water boiling process, the small bubbles are mainly formed by air adsorbed at the bottom of the water boiler and dissolved in water, the volume of the bubbles is increased along with the increase of the temperature, the bubbles rise, the volume of the bubbles is cooled and reduced in the rising process due to the uneven water temperature in the water boiler, and a large number of bubbles repeatedly generate larger noise, wherein the larger the heating power is, the larger the generated noise is in a corresponding temperature section.
In an exemplary embodiment of the present application, based on the above phenomenon, a low noise heating control method of a water boiler is disclosed, which generates lower noise in the water boiling process by adopting different heating powers in the water boiling process. For example, by reducing the heating power at different temperature points, the water is heated with smaller power in a larger noise stage, and the noise generated during water heating is reduced.
In an exemplary embodiment of the present application, the bubble generation condition may include any one or more of the following: the amount of generated bubbles, the size of the generated bubbles and whether the generated bubbles are broken or not; the rollover condition may include: with or without tumbling.
In an exemplary embodiment of the present application, the determining the state of water in the boiler according to the water temperature may include:
when the water temperature is detected to be in a first temperature range, judging that no bubble and no rolling phenomenon exist in the water;
when the water temperature is detected to be in the second temperature range, judging that the bubbles in the water are few, the bubbles are small, the bubbles are not broken, and the water is free from rolling;
when the water temperature is detected to be in a third temperature range, judging that the number of bubbles in the water is large, the generated bubbles are gradually smaller, the bubbles are not broken, and the water is not rolled;
when the water temperature is detected to be in a fourth temperature range, judging that bubbles in the water are reduced, the generated bubbles are gradually enlarged, the bubbles are not broken, and the water is not rolled;
when the water temperature is detected to be in a fifth temperature range, the air bubbles in the water are determined to be reduced, the generated air bubbles are gradually enlarged, the air bubbles rise to the water surface to be broken, and the water is rolled.
In an exemplary embodiment of the present application, the first temperature range may satisfy: less than 40 ℃;
the second temperature range may satisfy: greater than 40 ℃ and less than or equal to 50 ℃;
the third temperature range may satisfy: greater than 50 ℃ and less than or equal to 70 ℃;
the fourth temperature range may satisfy: greater than 70 ℃ and less than or equal to 85 ℃;
the fifth temperature range may satisfy: greater than 85 ℃ and less than or equal to the boiling temperature.
In an exemplary embodiment of the present application, based on the above analysis, it is known that: the first temperature may satisfy: 38-42 ℃, e.g., 40 ℃ may be selected; the second temperature may satisfy: 68-72 ℃, e.g., 70 ℃ may be selected; the third temperature may satisfy: 83℃to 87℃for example, 85℃may be selected.
In an exemplary embodiment of the present application, the preheating stage may correspond to a first temperature range, the noise reduction heating stage may correspond to a second temperature range and a third temperature range, and the water boiling stage may correspond to a fourth temperature range.
In an exemplary embodiment of the present application, the noise reduction heating stage may include: a first sub-stage and a second sub-stage; the second heating power includes: a first sub-heating power and a second sub-heating power;
a first sub-stage: heating the slurry temperature from the first temperature to a first sub-temperature using a first sub-heating power; the first sub-heating power is less than the first heating power;
a second sub-stage: heating the slurry temperature from the first sub-temperature to the second temperature using a second sub-heating power; the second sub-heating power is less than the first sub-heating power; the third heating power is greater than the first sub-heating power.
In an exemplary embodiment of the present application, the first sub-temperature may satisfy: 48℃to 52℃for example, 50℃may be selected.
In an exemplary embodiment of the application, the first sub-stage
In an exemplary embodiment of the present application, the method may further include: boiling stage;
boiling: heating the slurry temperature from the third temperature to boiling using a fourth heating power; the fourth heating power is less than the third heating power.
In an exemplary embodiment of the application, a fourth heating power may be used to heat the slurry temperature from 85 ℃ to boiling.
In an exemplary embodiment of the present application, the boiling stage may correspond to a fifth temperature range.
In an exemplary embodiment of the present application, the first heating power may be: full power P;
the second heating power may satisfy: 3P/4-5P/6; wherein the first sub-heating power may satisfy: 3P/4-5P/6; the second sub-heating power may satisfy: 3P/4-P/3;
the third heating power may be: full power P;
the fourth heating power may satisfy: 3P/4-P/3.
In an exemplary embodiment of the present application, the adjusting the heating power of the water boiler according to the state of the water may include:
when no bubble exists in the water and no rolling phenomenon exists (namely, a first temperature range), controlling the heating power (first heating power) to be full power P;
when the bubbles in the water are few, the bubbles are small, the bubbles are not broken, and the water does not roll (namely, the second temperature range), the heating power (the first sub-heating power) is controlled to be 3P/4-5P/6;
when the bubbles in the water are more, the generated bubbles are gradually smaller, the bubbles are not broken, and the water is not rolled (the third temperature range), the heating power (the second sub-heating power) is controlled to be 3P/4-P/3;
when the bubbles in the water are reduced, the generated bubbles are gradually enlarged, the bubbles are not broken, and the water is not rolled (in a fourth temperature range), the heating power (third heating power) is controlled to be full power P;
when the bubbles in the water decrease, the generated bubbles gradually become larger, the bubbles rise to the water surface to collapse, and the water has a tumbling phenomenon (fifth temperature range), the heating power (fourth heating power) is controlled to be 3P/4-P/3.
In the exemplary embodiment of the present application, when the water temperature is lower than 40 ℃, the volume of small bubbles attached to the bottom of the heating pan during heating is relatively small, so that full power heating is performed in this temperature range without generating large noise.
In the exemplary embodiment of the application, in the temperature range of 40-50 ℃, small bubbles are generated at the bottom of the water boiler along with the full-power heating, the number of the bubbles is increased, and the noise is also gradually increased.
In the exemplary embodiment of the application, in the temperature range of 50-70 ℃, the quantity of bubbles is greatly generated, the temperature difference between the upper part and the lower part of the water temperature in the water boiler is larger, and the generated noise is the largest in the whole water boiling process in the process of rising and cooling down the bubbles, so that the water boiler can be heated by adopting smaller heating power, the generation of the bubbles is greatly relieved, meanwhile, the water in the water boiler has enough time for heat exchange, and the water temperature in the water boiler is more uniform.
In the exemplary embodiment of the application, in the temperature range of 70-85 ℃, the volume of water in the water boiler is not reduced in the rising process, but also is continuously increased, so that the noise is relatively smaller in the stage, full-power heating can be adopted, the temperature can be raised at a higher speed, and the time for boiling water is saved.
In the exemplary embodiment of the present application, in the course of 85 deg.c to boiling, as the temperature of water approaches the boiling temperature, the inside of water is abruptly vaporized, and as the bubble increases in its rising course, the bubble rises from the bottom to the surface to be ruptured, and the source of noise at this time is the sound of tumbling of water and ruptured bubble at the time of boiling, so that the degree of boiling of water is suppressed with relatively less power, thereby reducing the generation of noise.
In an exemplary embodiment of the present application, the method may further include: when the heating power of the water boiler is adjusted after entering different stages, if the heating power of the water boiler after adjustment is detected to be larger than or equal to a preset upper power limit value, the heating power is adjusted to be the upper power limit value; if the heating power of the adjusted water boiler is detected to be smaller than the preset upper power limit value, the adjusted heating power is kept.
In an exemplary embodiment of the present application, the heating power of the water boiler may be controlled to be less than or equal to 1200W for further noise reduction.
In the exemplary embodiment of the present application, if a large heating power is used, bubbles at the bottom of the boiler are generated vigorously, and at the same time, the response of the measured temperature is not timely due to the influence of the NTC (negative temperature coefficient thermistor) package, i.e., the actual water temperature is higher than the temperature detected by the NTC, in which case the heating power adjustment may not be timely, resulting in no reduction of the water heating noise.
In an exemplary embodiment of the present application, the method may further include:
when the boiling water pot is used for the first time, the altitude boiling point T corresponding to the current altitude is obtained Boiling point of ；
According to the altitude boiling point T Boiling point of Temperature values for entering the different phases are determined.
In an exemplary embodiment of the present application, the heating power switching temperature point may be adaptively adjusted according to the current altitude boiling point.
In an exemplary embodiment of the present application, the altitude boiling point T corresponding to the current altitude is obtained Boiling point of May include:
heating water with full power until boiling;
detecting the rising slope of the water temperature in the water boiler in the heating process;
when the change of the rising slope of the water temperature in the preset time period is smaller than or equal to a preset change threshold value, determining that the currently detected temperature is the altitude boiling point T corresponding to the current altitude Boiling point of 。
In an exemplary embodiment of the present application, when a user uses the boiler for the first time, full power heating and boiling may be used, a rising slope of water temperature is detected, if the rising slope of water temperature is maintained to be substantially 0 (i.e., less than or equal to a preset change threshold value) for a longer time during heating, indicating that the water temperature is not changed, the temperature point is considered to be the current elevation boiling point, and the current temperature point may be stored in EEProm and an elevation adaptation flag may be set.
In the exemplary embodiment of the application, in the process of using the water boiler for the first time by a user, the current altitude is automatically adapted, and after the self-adaptation, the low-noise process control is performed by water boiling, and the current boiling point is easier to judge because the slope of temperature rise is relatively stable under the same heating power, so that the altitude boiling point is judged by adopting full-power heating in the whole process.
In an exemplary embodiment of the present application, a thermometer for adjusting heating power at a preset standard altitude may be stored in a memory when a boiler leaves a factory, the thermometer may not be adjusted when the boiler is used at the standard altitude, and the temperature range (or temperature point) for winning the adjustment of heating power may be adjusted according to the thermometer at the standard altitude when the boiler is not used at the standard altitude.
In an exemplary embodiment of the present application, whether or not temperature adjustment is required may be determined based on whether or not the altitude adaptation flag is set. When the elevation adaptive mark is set, the temperature in the water heating low noise process can be adjusted. When the altitude adaption flag is not set, temperature adjustment in the low noise process is not performed.
In an exemplary embodiment of the present application, the temperature T is determined based on the altitude Boiling point of Determining the temperature value to enter the different phases may include: different temperature values are obtained according to the following relationAnd (3) adjusting:
T＝T 0 -(100℃-T boiling point of )；
Wherein T is 0 To adjust the temperature value before adjustment, T is the temperature value after adjustment.
In an exemplary embodiment of the present application, the method may further include:
in the water heating process, the change of the mains voltage is detected in real time, and the heating power is adjusted according to the change of the mains voltage.
In an exemplary embodiment of the present application, since the heating power p=u×u/R, where R is the equivalent resistance of the heating device, such as a heating tube. In the water heating process, pa=U×U×Pw/(220×220) is timely adjusted according to the mains supply detection voltage, wherein the mains supply is 220V, U is the current mains supply voltage, pa is the heating power after voltage adjustment, and Pw is the heating power after adjustment of each temperature range.
In the exemplary embodiment of the application, the heating power of low-noise water heating can be controlled relatively accurately by identifying the voltage change of the mains supply and adjusting the heating power in time in the water heating process.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Claims (8)
1. A method of reducing noise in a water boiler, the method comprising:
preheating: heating the slurry temperature to a first temperature using a first heating power;
noise reduction and heating stage: heating the slurry temperature from the first temperature to a second temperature using a second heating power; the second heating power is smaller than the first heating power; the second temperature satisfies: 68-72 ℃;
the noise reduction heating stage comprises the following steps: a first sub-stage and a second sub-stage; the second heating power includes: a first sub-heating power and a second sub-heating power;
a first sub-stage: heating the slurry temperature from the first temperature to a first sub-temperature using a first sub-heating power; the first sub-heating power is less than the first heating power;
a second sub-stage: heating the slurry temperature from the first sub-temperature to the second temperature using a second sub-heating power; the second sub-heating power is less than the first sub-heating power;
boiling: heating the slurry temperature from the second temperature to a third temperature using a third heating power; the third heating power is greater than the second heating power; the third temperature satisfies: 83-87 ℃; the third heating power is: full power P; the third heating power is greater than the first sub-heating power;
boiling: heating the slurry temperature from the third temperature to boiling using a fourth heating power; the fourth heating power is less than the third heating power.
2. The method for reducing noise of a water boiler according to claim 1, wherein,
the first temperature satisfies: 38-42 ℃;
the first heating power is: full power P;
the second heating power satisfies: 3P/4-5P/6;
the fourth heating power satisfies: 3P/4-P/3.
3. The method for reducing noise of a water boiler according to claim 1, wherein,
the first sub-temperature satisfies: 48-52 ℃;
the first sub-heating power satisfies: 3P/4-5P/6;
the second sub-heating power satisfies: 3P/4-P/3.
4. A method of reducing noise in a water boiler according to any one of claims 1-3, further comprising: when the heating power of the water boiler is adjusted after entering different stages, if the heating power of the water boiler after adjustment is detected to be larger than or equal to a preset upper power limit value, the heating power is adjusted to be the upper power limit value; if the heating power of the adjusted water boiler is detected to be smaller than the preset upper power limit value, the adjusted heating power is kept.
5. A method of reducing noise in a water boiler according to any one of claims 1-3, further comprising:
when the water boiler is used for the first time, the altitude boiling point T boiling point corresponding to the current altitude is obtained;
and determining the temperature values entering different stages according to the elevation boiling point Tboiling point.
6. The method of reducing noise of a boiler according to claim 5, wherein said obtaining an altitude boiling point tbboiling point corresponding to a current altitude comprises:
heating water with full power until boiling;
detecting the rising slope of the water temperature in the water boiler in the heating process;
and when the change of the rising slope of the water temperature in the preset duration is smaller than or equal to a preset change threshold value, determining that the currently detected temperature is the altitude boiling point T boiling point corresponding to the current altitude.
7. The method of reducing noise of a boiler according to claim 5, wherein said determining temperature values for entering different stages according to said altitude boiling point tbboiling point comprises: the different temperature values are adjusted according to the following relation:
t=t0- (100 ℃ -T boiling point);
wherein T0 is the temperature value before adjustment, and T is the temperature value after adjustment.
8. A method of reducing noise in a water boiler according to any one of claims 1-3, further comprising:
in the water heating process, the change of the mains voltage is detected in real time, and the heating power is adjusted according to the change of the mains voltage.
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| CN109106207A (en) * | 2017-06-26 | 2019-01-01 | 北京匠心小镇电子商务有限公司 | With the control method of drink electric hot water bottle |
| CN109140543A (en) * | 2018-06-08 | 2019-01-04 | 浙江绍兴苏泊尔生活电器有限公司 | Noise reduction method for electromagnetic heating cooker |
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