CN113028467B - Range hood and oil quantity detection method thereof - Google Patents
Range hood and oil quantity detection method thereof Download PDFInfo
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- CN113028467B CN113028467B CN201911346458.1A CN201911346458A CN113028467B CN 113028467 B CN113028467 B CN 113028467B CN 201911346458 A CN201911346458 A CN 201911346458A CN 113028467 B CN113028467 B CN 113028467B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The embodiment of the invention discloses a range hood and an oil mass detection method thereof, wherein the range hood comprises an oil cup and a range hood body positioned above the oil cup, wherein the bottom of the range hood body is provided with an ultrasonic module which is used for detecting the oil mass height in the oil cup; the method comprises the following steps: respectively detecting a first oil mass average height and a second oil mass average height in the oil cup in a preset detection period, and calculating the oil mass and liquid level variation according to the first oil mass average height and the second oil mass average height; comparing the oil mass and liquid level variation with a preset cleaning reminding value; and judging whether the height change of the liquid level in the oil cup is normal or not and whether the cooking habit of a user is heavy oil or light oil or not according to the comparison result and the operation duration of the fan in the range hood. Through this embodiment scheme, can improve the oil mass and detect the accuracy to can acquire user's culinary art custom, be convenient for maintain user's diet healthy.
Description
Technical Field
The embodiment of the invention relates to a range hood control technology, in particular to a range hood and an oil quantity detection method thereof.
Background
The existing oil fume detection scheme of the range hood can detect the liquid level height in an oil cup, but abnormal phenomena such as cleaning water entering the oil cup cannot be accurately judged, so that the oil mass detection accuracy cannot be guaranteed.
Disclosure of Invention
The embodiment of the invention provides a range hood and an oil mass detection method thereof, which can improve the accuracy of oil mass detection, can acquire the cooking habits of users and are convenient for maintaining the diet health of the users.
In order to achieve the purpose of the embodiment of the invention, the embodiment of the invention provides a method for detecting the oil quantity of a range hood, wherein the range hood can comprise an oil cup and a range hood body positioned above the oil cup, the bottom of the range hood body is provided with an ultrasonic module, and the ultrasonic module is used for detecting the oil quantity height in the oil cup; the method may include:
respectively detecting a first oil mass average height S1v and a second oil mass average height S2v in an oil cup in a preset detection period, and calculating an oil mass liquid level variation quantity delta S according to the first oil mass average height S1v and the second oil mass average height S2 v; wherein, the first average height of oil mass S1v is a height detected at an initial time of the detection period, and the second average height of oil mass S2v is a height detected at an end time of the detection period;
comparing the oil quantity and liquid level variation quantity deltaS with a preset cleaning reminding value Sc;
and judging whether the height change of the liquid level in the oil cup is normal or not and whether the cooking habit of a user is heavy oil or light oil or not according to the comparison result and the operation time T of the fan in the range hood.
In an exemplary embodiment of the present invention, the determining whether the oil cup is normal according to the comparison result and the operation time T of the fan in the range hood may include:
when the delta S is larger than or equal to Sc and the running time T of the fan is smaller than a preset first time threshold, judging that the height change of the liquid level in the current oil cup is abnormal;
when the delta S is larger than or equal to Sc and the running time T of the fan is larger than or equal to the first time threshold, judging that the height change of the liquid level in the current oil cup is normal; and the oil cup is currently in a state to be cleaned.
In an exemplary embodiment of the present invention, determining whether a cooking habit of a user is heavy oil or light oil according to a comparison result and an operation time T of a fan in a range hood includes:
when the current oil cup is judged to be normal, if the operation time T of the fan is less than a preset second time threshold, the cooking habit of the user is judged to be heavy oil; the second duration threshold is greater than the first duration threshold.
In an exemplary embodiment of the present invention, the determining whether the cooking habit of the user is heavy oil or light oil according to the comparison result and the operation time T of the fan in the range hood may include: when the Delta S is smaller than Sc, judging that the height change of the liquid level in the current oil cup is normal;
judging whether the cooking habit of the user is heavy oil or light oil according to the comparison result and the running time T of the fan in the range hood can include:
when the Delta S is less than Sc and the running time T of the fan is greater than or equal to a preset third time threshold, judging that the cooking habit of the user is light oil; the third duration threshold is greater than the second duration threshold.
In an exemplary embodiment of the present invention, the method may further include:
when the cooking habit of the user is judged to be heavy oil, a health prompt is sent out, and a light oil recipe suitable for the taste of the user is pushed; and the number of the first and second groups,
when judging that the cooking habit of the user is light oil, pushing a light oil recipe suitable for the taste of the user.
In an exemplary embodiment of the present invention, the method may further include:
after the range hood is powered on, the type of the range hood is identified, and a corresponding cleaning reminding value Sc is obtained from the storage unit according to the identified type.
In an exemplary embodiment of the present invention, the method may further include:
before starting oil quantity detection, judging whether the last detection step and/or the first oil quantity average height S1v is larger than the second oil quantity average height S2v or not to determine whether to stop the current detection period and enter a new oil quantity detection period or not.
In an exemplary embodiment of the present invention, the determining whether the last detection step and/or the first average oil amount height S1v is greater than the second average oil amount height S2v to determine whether to abort the current detection period and enter a new oil amount detection period may include:
when S1v is less than or equal to S2v, immediately entering a new detection period, and re-detecting and recording the first oil mass average height S1v in the new detection period;
and when S1v is greater than S2v, entering a new oil quantity detection period after the current detection period is executed.
A range hood, comprising: the range hood comprises a processor, a computer readable storage medium, an oil cup and a range hood body positioned above the oil cup;
the bottom of the range hood body is provided with an ultrasonic module which is used for detecting the oil mass height in the oil cup; a groove is formed in one surface, facing the oil cup, of the bottom of the range hood, the ultrasonic module is arranged at the top of the groove, and the ultrasonic module is located right above the oil cup;
the computer readable storage medium stores instructions, and when the instructions are executed by the processor, the method for detecting the oil amount of the range hood is implemented.
In an exemplary embodiment of the present invention, a distance between the top of the ultrasonic module and the bottom of the oil cup may satisfy: greater than or equal to 3cm.
Compared with the prior art, the embodiment of the invention comprises the following steps: the range hood can comprise an oil cup and a range hood body positioned above the oil cup, wherein an ultrasonic module is installed at the bottom of the range hood body and used for detecting the oil mass height in the oil cup; the method may include: respectively detecting a first oil mass average height S1v and a second oil mass average height S2v in an oil cup in a preset detection period, and calculating an oil mass liquid level variation quantity delta S according to the first oil mass average height S1v and the second oil mass average height S2 v; comparing the oil quantity and liquid level variation quantity deltaS with a preset cleaning reminding value Sc; and judging whether the height change of the liquid level in the oil cup is normal or not and whether the cooking habit of a user is heavy oil or light oil or not according to the comparison result and the operation time T of the fan in the range hood. Through this embodiment scheme, can improve the oil mass and detect the accuracy to can acquire user's culinary art custom, be convenient for maintain user's diet healthy.
Additional features and advantages of the invention 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 invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flow chart of an oil amount detection method of a range hood according to an embodiment of the invention;
fig. 2 is a schematic view of a method for detecting an amount of oil in a range hood according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a range hood according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Example one
The embodiment of the invention provides an oil quantity detection method of a range hood, wherein the range hood can comprise an oil cup and a range hood body positioned above the oil cup, the bottom of the range hood body is provided with an ultrasonic module, and the ultrasonic module is used for detecting the oil quantity height in the oil cup; as shown in fig. 1 and fig. 2, the method may include S101-S103:
s101, respectively detecting a first oil mass average height S1v and a second oil mass average height S2v in an oil cup in a preset detection period, and calculating an oil mass liquid level variation quantity delta S according to the first oil mass average height S1v and the second oil mass average height S2 v;
s102, comparing the oil quantity and liquid level variation quantity deltaS with a preset cleaning reminding value Sc;
s103, judging whether the height change of the liquid level in the oil cup is normal or not and whether the cooking habit of a user is heavy oil or light oil or not according to the comparison result and the operation time T of the fan in the range hood.
In an exemplary embodiment of the present invention, the first oil amount average height S1v is a height detected at an initial time of the detection period, and the second oil amount average height S2v is a height detected at an end time of the detection period.
In an exemplary embodiment of the present invention, the method may further include:
after the range hood is powered on, the type of the range hood is identified, and a corresponding cleaning reminding value Sc is obtained from the storage unit according to the identified type.
In an exemplary embodiment of the invention, after the cigarette making machine is powered on, the cigarette making machine can be firstly identified, and the cleaning reminding value Sc of the corresponding cigarette making machine is determined and is stored in a storage element of the control unit.
In an exemplary embodiment of the present invention, the method may further include:
before starting oil quantity detection, judging whether the last detection step and/or the first oil quantity average height S1v is larger than the second oil quantity average height S2v or not to determine whether to stop the current detection period and enter a new oil quantity detection period or not.
In an exemplary embodiment of the present invention, the determining whether the last detection step and/or the first average height of oil amount S1v is greater than the second average height of oil amount S2v to determine whether to abort the current detection period and enter a new oil amount detection period may include:
when S1V is less than or equal to S2V (in the middle of detection, the liquid level is reduced under the condition that a user cleans an oil cup, and S2V is greater than S1V), immediately entering a new detection period, and re-detecting and recording the first oil mass average height S1V in the new detection period;
and when S1v is larger than S2v, entering a new oil quantity detection period after the current detection period is executed.
In the exemplary embodiment of the invention, when the range hood normally works, the oil cup amount and the operation time of the fan are detected and counted, before the oil cup amount is detected, whether the oil cup amount is a new detection period or not may be determined first, and the detection period may be understood as an oil amount detection flow from a certain time to another time, and may specifically include detection of a numerical value, cyclic detection and averaging, a time interval between two times, and the like. Since the user may use a new cup or a cleaned cup, it is a prerequisite to determine the previous moment of the test cycle.
In an exemplary embodiment of the invention, if the machine is a new detection cycle, the average values of the oil mass height S1v and S2v are respectively obtained in a certain detection cycle, then the oil mass liquid level variation Δ S in the cycle is S2v minus S1v, if S1v is detected to be greater than S2v, the control unit determines that the user may clean the oil cup at a certain moment in the middle, then S2v at the moment is the initial value of the new detection cycle, otherwise the oil mass liquid level variation Δ S in the cycle is effective. Meanwhile, the running time T of the fan in the period can be synchronously counted.
In an exemplary embodiment of the present invention, the determining whether the oil cup is normal according to the comparison result and the operation time T of the fan in the range hood may include:
when the delta S is larger than or equal to Sc and the running time T of the fan is smaller than a preset first time threshold, judging that the height change of the liquid level in the current oil cup is abnormal;
when the delta S is larger than or equal to Sc and the running time T of the fan is larger than or equal to the first time threshold, judging that the height change of the liquid level in the current oil cup is normal; and the current oil cup is in a state of waiting to clean (can send out the oil cup and remind the function).
In an exemplary embodiment of the present invention, the first time threshold may be selected to be 10-15 hours, and may preferably be 10 hours.
In the exemplary embodiment of the invention, if Δ S is greater than or equal to Sc, the range hood reminds a user of cleaning an oil cup, but if the operation time of the fan of the range hood is detected to be less than 10 hours, the range hood does not reach the requirement of cleaning reminding at the moment, and the range hood possibly has the condition that cleaning residual water is discharged into the oil cup, so that the user can be reminded of the abnormality of the oil cup, the user can be reminded of cleaning the oil cup again, and the cleaning detection period can be restarted.
In the exemplary embodiment of the invention, if Δ S is greater than or equal to Sc and the operation time of the fan of the range hood is detected to be greater than or equal to 10 hours, it indicates that the oil amount variation of the oil cup in one detection period exceeds the cleaning reminding value, and at this time, the range hood has reached the requirement of the cleaning reminding, and the control unit of the range hood determines that the range hood of the user needs to be cleaned after being used for a period of time.
In an exemplary embodiment of the present invention, the determining whether the cooking habit of the user is heavy oil or light oil according to the comparison result and the operation time T of the fan in the range hood may include:
when the current oil cup is judged to be normal, if the running time T of the fan is smaller than a preset second time threshold, judging that the cooking habit of a user is heavy oil; the second duration threshold is greater than the first duration threshold.
In an exemplary embodiment of the present invention, the determining whether the oil cup is normal according to the comparison structure and the operation duration T of the fan in the range hood may include: and when the Delta S is less than Sc, judging that the height change of the liquid level in the current oil cup is normal.
In an exemplary embodiment of the present invention, determining whether the cooking habit of the user is heavy oil or light oil according to the comparison result and the operation time T of the fan in the range hood may include:
when the Delta S is less than Sc and the running time T of the fan is greater than or equal to a preset third time threshold, judging that the cooking habit of the user is light oil; the third duration threshold is greater than the second duration threshold.
In an exemplary embodiment of the present invention, the method may further include:
when the cooking habit of the user is judged to be heavy oil, a health prompt is sent out, and a light oil recipe suitable for the taste of the user is pushed; and the number of the first and second groups,
when judging that the cooking habit of the user is light oil, pushing a light oil recipe suitable for the taste of the user.
In an exemplary embodiment of the present invention, the second time length threshold may satisfy: 45-55 hours, preferably 50 hours; the second duration threshold may satisfy: 100 to 120 hours, and preferably 100 hours.
In an exemplary embodiment of the invention, when Δ S is greater than or equal to Sc, and the operation time T of the fan is greater than or equal to the first time threshold and less than or equal to a preset second time threshold, that is, if the operation time T of the range hood is less than 50 hours under the condition that the cleaning condition of the range hood is met, it is indicated that the cooking habit of the user belongs to heavy oil, the range hood can remind the user through an intelligent terminal (such as a mobile phone, an intelligent wearable device, and the like), the oil intake is appropriately reduced, or a recipe, a healthy clear oil recipe, and the like, which are suitable for the taste of the user, are pushed.
In the exemplary embodiment of the invention, if Δ S < Sc, which indicates that the variation of the oil amount of the oil cup in a detection period does not reach the cleaning reminding value, the range hood control unit determines that the range hood of the user does not need to be cleaned, and meanwhile, the intelligent extension function can judge the operation time of the range hood, and if the operation time of the fan of the range hood is longer than 100 hours, it indicates that the cooking habit of the user belongs to light low oil, and the intelligent terminal can push a recipe suitable for the taste of the user.
In the exemplary embodiment of the invention, if Δ S < Sc, although the range hood cleaning value is not reached, a certain amount of oil stains are attached to the range hood after a long time of operation, and then the range hood control unit can give an alarm to the user to remind the user to recommend the user to clean and maintain the range hood.
Example two
As shown in fig. 3, a range hood is provided.
In an exemplary embodiment of the present invention, the range hood may include: the range hood comprises a processor, a computer readable storage medium, an oil cup and a range hood body positioned above the oil cup;
the bottom of the range hood body is provided with an ultrasonic module, and the ultrasonic module is used for detecting the oil mass height in the oil cup; a groove is formed in one surface, facing the oil cup, of the bottom of the range hood, the ultrasonic module is arranged at the top of the groove, and the ultrasonic module is located right above the oil cup;
the computer readable storage medium stores instructions, and when the instructions are executed by the processor, the method for detecting the oil quantity of the range hood is implemented.
In an exemplary embodiment of the present invention, a distance between the top of the ultrasonic module and the bottom of the oil cup may satisfy: greater than or equal to 3cm.
In the exemplary embodiment of the invention, the function of detecting the oil amount of the oil cup in real time is realized by installing the ultrasonic module (particularly, the ultrasonic ranging module) at the bottom of the range hood body (above the oil cup).
In the exemplary embodiment of the invention, the ultrasonic module is installed at the bottom of the extractor hood body, the relative distance between the top position of the transmitting head of the ultrasonic module and the bottom of the oil cup is required to be at least greater than or equal to 2cm, and in order to ensure the height difference of the oil quantity rising part, the relative distance is required to be at least greater than or equal to 3cm (recommended distance is 3-5 cm) in the practical use process, because the ultrasonic detection has a blind zone, and the blind zone is generally within 2 cm; in order to ensure the influence of the depths of oil cups of different machine types, the structural position for mounting the ultrasonic module is designed into an inwards concave trapezoidal structure in the embodiment of the invention, as shown in fig. 3, the ultrasonic module is mounted at the top of the trapezoid, and the height difference between the top position of the ultrasonic transmitting and receiving head and the bottom plane of the range hood is 1-2cm, and the design at least has the following advantages:
1. the indent structure can ensure that ultrasonic module cleans or the user cleans the in-process at the oil cup, can not cause ultrasonic sensor's dirty, ensures ultrasonic module's stability and reliability.
2. The relative distance between the ultrasonic module and the bottom of the oil cup is increased, and the ultrasonic detection blind area is avoided.
3. The height can ensure the reflection interference around the metal plate under the condition of ensuring the detection distance and the protection design, namely, the problem of echo reflection caused by the over-deep inner concave depth is avoided.
4. Because the ultrasonic module is installed in the range hood bottom, the wind channel oil circuit can be through the bottom panel beating, and the step height installation can guarantee not have the intersection between ultrasonic module and the oil circuit, avoids the oil circuit greasy dirt to soak or dirty ultrasonic module.
In the exemplary embodiment of the present invention, the oil cup is installed at the bottom of the range hood body, and the gap between the oil cup and the bottom of the range hood body is as small as possible, and since the ultrasonic detection is easily interfered by the surrounding environment in the application process, such as an ultrasonic cleaning device, it is necessary to adopt an external structure shielding or isolation design.
In the exemplary embodiment of the invention, as the ultrasonic wave is easily polluted by oil smoke and water vapor when in use, and a dirty layer is formed on the surface of the sensor after a long time, so as to influence the transmission and the receiving of ultrasonic wave signals, oil leakage holes are designed on the periphery of the ultrasonic wave module, aiming at forming an air suction opening by using the working suction force of the oil leakage holes and an internal fan, and sucking the water vapor and the oil smoke which are diffused to the periphery of the ultrasonic wave module into the cavity of the range hood through the oil leakage holes, so that the probability of gas pollution of the ultrasonic wave sensor is reduced, and the service life of the ultrasonic wave module is prolonged.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between 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 by several physical components in cooperation. 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 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 is well known to those of ordinary skill 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 accessed by a computer. In addition, 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 as known to those skilled in the art.
Claims (9)
1. The oil mass detection method of the range hood is characterized in that the range hood comprises an oil cup and a range hood body positioned above the oil cup, wherein an ultrasonic module is installed at the bottom of the range hood body and is used for detecting the oil mass height in the oil cup; the method comprises the following steps:
respectively detecting a first oil mass average height S1v and a second oil mass average height S2v in an oil cup in a preset detection period, and calculating an oil mass liquid level variation quantity delta S according to the first oil mass average height S1v and the second oil mass average height S2 v;
comparing the oil quantity and liquid level variation quantity deltaS with a preset cleaning reminding value Sc;
judging whether the height change of the liquid level in the oil cup is normal or not and whether the cooking habit of a user is heavy oil or light oil or not according to the comparison result and the operation time T of a fan in the range hood;
when the delta S is more than or equal to Sc and the running time T of the fan is less than a preset first time threshold, judging that the height change of the liquid level in the current oil cup is abnormal,
when the delta S is larger than or equal to Sc and the running time T of the fan is larger than or equal to the first time threshold, judging that the height change of the liquid level in the current oil cup is normal; and the oil cup is currently in a state to be cleaned.
2. The method for detecting the oil amount of the range hood according to claim 1, wherein the step of judging whether the cooking habit of the user is heavy oil or clear oil according to the comparison result and the operation duration T of the fan in the range hood comprises the following steps:
when the current oil cup is judged to be normal, if the operation time T of the fan is less than a preset second time threshold, the cooking habit of the user is judged to be heavy oil; the second duration threshold is greater than the first duration threshold.
3. The method for detecting the oil amount of the range hood according to claim 1, wherein the step of judging whether the oil cup is normal according to the comparison structure and the operation time period T of the fan in the range hood comprises the following steps:
when the Delta S is smaller than Sc, judging that the height change of the liquid level in the current oil cup is normal;
judging whether the cooking habit of the user is heavy oil or light oil according to the comparison result and the running time T of the fan in the range hood, wherein the judgment result comprises the following steps: and when the Delta S is less than Sc and the running time T of the fan is greater than a preset third time threshold, judging that the cooking habit of the user is light oil.
4. The method for detecting the oil amount of the range hood according to claim 2 or 3, wherein the method further comprises:
when the cooking habit of the user is judged to be heavy oil, a health prompt is sent out, and a light oil recipe suitable for the taste of the user is pushed; and the number of the first and second groups,
when judging that the cooking habit of the user is light oil, pushing a light oil recipe suitable for the taste of the user.
5. The method for detecting the oil amount of a range hood according to any one of claims 1 to 3, wherein the method further comprises:
after the range hood is powered on, the type of the range hood is identified, and a corresponding cleaning reminding value Sc is obtained from the storage unit according to the identified type.
6. The method for detecting the oil amount of a range hood according to any one of claims 1 to 3, wherein the method further comprises:
before the oil quantity detection is started, judging whether the last detection step and/or the first oil quantity average height S1v is larger than the second oil quantity average height S2v or not to determine whether to stop the current detection period and enter a new oil quantity detection period or not.
7. The method for detecting oil amount of a range hood according to claim 6, wherein the determining whether the last detection step and/or the first average height of oil amount S1v is greater than the second average height of oil amount S2v to determine whether to terminate the current detection period and enter a new detection period of oil amount comprises:
when the S1v is less than or equal to the S2v, immediately entering a new detection period, and re-detecting and recording the first oil mass average height S1v in the new detection period;
and when S1v is larger than S2v, entering a new oil quantity detection period after the current detection period is executed.
8. A range hood, comprising: the range hood comprises a processor, a computer readable storage medium, an oil cup and a range hood body positioned above the oil cup;
the bottom of the range hood body is provided with an ultrasonic module, and the ultrasonic module is used for detecting the oil mass height in the oil cup; a groove is formed in one surface, facing the oil cup, of the bottom of the range hood, the ultrasonic module is arranged at the top of the groove, and the ultrasonic module is located right above the oil cup;
the computer readable storage medium stores instructions, and when the instructions are executed by the processor, the method for detecting the oil amount of the range hood as claimed in any one of claims 1 to 7 is implemented.
9. The range hood according to claim 8, wherein a plurality of oil leakage holes are formed in a bottom portion of the range hood body, and at least one of the oil leakage holes is located at an outer periphery of the groove.
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| CN108006736A (en) * | 2017-06-07 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of intelligent range hood and its control method |
| CN107642809A (en) * | 2017-10-20 | 2018-01-30 | 九阳股份有限公司 | A kind of oil cup of kitchen ventilator oil mass detection device |
| EP3489586A1 (en) * | 2017-11-24 | 2019-05-29 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for controlling range hood, and storage medium |
| CN109855128A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of range hood with self-cleaning function |
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