CN109567717B - Household appliance and control method thereof - Google Patents
Household appliance and control method thereof Download PDFInfo
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- CN109567717B CN109567717B CN201910059139.6A CN201910059139A CN109567717B CN 109567717 B CN109567717 B CN 109567717B CN 201910059139 A CN201910059139 A CN 201910059139A CN 109567717 B CN109567717 B CN 109567717B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
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Abstract
The invention discloses a household appliance and a control method thereof, wherein the household appliance comprises: the water storage cavity is arranged in the cavity; the water pipe is connected with the cavity and communicated with the water containing cavity, and a water valve is arranged on the water pipe; the detection device is arranged on the water pipe and positioned on one side, close to the water containing cavity, of the water valve, and comprises a pressure detection part and a frequency spectrum detection part, wherein the pressure detection part is used for detecting the pressure of fluid in the water pipe, and the frequency spectrum detection part is suitable for generating vibration under the impact of the fluid; a controller in communication with the detection device. According to the household appliance, the detection device is arranged on the water pipe, the detection device is used for simultaneously detecting the water flow pressure in the water pipe and the frequency spectrum value under the impact of the water flow, whether the household appliance has a water leakage point or not can be judged through the pressure change and the frequency spectrum value change, and the effective detection of the water leakage of the household appliance is realized.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a household appliance and a control method of the household appliance.
Background
With the improvement of living standard of people, the requirement on the safety attribute of household appliances is very high. The great risk of the dish-washing machine in the current market is that the great loss is caused by the water leakage of the whole machine. The reasons for water leakage are many, such as poor interface, poor sealing, poor welding, corrosion and scaling, and the like, and can not be prevented in advance by a certain technology. It is very important to stop the power consumption and inform the user when the water is leaked.
The related art provides a method for judging whether water leakage exists in a pipeline or not by detecting the flow change before and after the detection. Because the accuracy of the flow sensor is limited, the water leakage condition cannot be completely detected in the actual use, the cost is high, and the actual use is difficult. Related art has also proposed a kind of water leakage detection device with capacitive sensing. And a capacitor electrode is arranged at a lower position to detect whether water drops arrive or not so as to judge whether water leakage exists or not. The scheme has a complex structure, and the misjudgment rate in actual life is too high, so that the scheme is difficult to use in practice.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a household appliance which can judge whether the whole appliance leaks water.
The invention further provides a control method of the household appliance.
A household appliance according to a first aspect of the invention comprises: the water storage cavity is arranged in the cavity; the water pipe is connected with the cavity and communicated with the water containing cavity, and a water valve is arranged on the water pipe; the detection device is arranged on the water pipe and positioned on one side, close to the water containing cavity, of the water valve, and comprises a pressure detection part and a frequency spectrum detection part, wherein the pressure detection part is used for detecting the pressure of fluid in the water pipe, and the frequency spectrum detection part is suitable for generating vibration under the impact of the fluid; a controller in communication with the detection device.
According to the household appliance, the detection device is arranged on the water pipe, the detection device is used for simultaneously detecting the water flow pressure in the water pipe and the frequency spectrum value under the impact of the water flow, whether the household appliance has a water leakage point or not can be judged through the pressure change and the frequency spectrum value change, and the effective detection of the water leakage of the household appliance is realized.
In some embodiments, the detection device is a MEMS pressure sensor.
In some embodiments, the detection device is arranged perpendicular to or parallel to the central axis of the water pipe.
In some embodiments, a flow sensor is connected in series to the water pipe, and the flow sensor is arranged on one side of the water valve close to the water containing cavity.
In some embodiments, the water line is a water inlet line and the water valve is a water inlet valve.
In some embodiments, the home appliance further comprises: and the buzzer and/or the warning lamp are in communication connection with the controller.
In some embodiments, the household appliance is a dishwasher.
A control method of a home appliance according to a second aspect of the present invention, the home appliance being the home appliance according to the first aspect of the present invention, the control method comprising: when the water valve is closed, the detection device monitors the pressure value in the water pipe and the frequency spectrum value of the frequency spectrum detection part in real time, and if the pressure value changes and the frequency spectrum value does not change, the household appliance is prompted to have a leakage risk; and if the pressure value recovers the initial atmospheric pressure and the frequency spectrum value exceeds the maximum set frequency spectrum value, the water pipe is warned to burst and the power supply is cut off.
According to the control method of the household appliance, whether a water leakage point exists in the household appliance can be detected, and a power supply can be cut off when water leakage exists, so that secondary accidents are avoided.
In some embodiments, the control method further comprises: the controller obtains a water leakage value of the household appliance according to the pressure value change and the frequency spectrum value change, and when the water leakage value is larger than 0 and not larger than a leakage limit value, the controller prompts that the household appliance has a leakage risk; and when the water leakage value is larger than the leakage limit value, warning the household appliance that water is leaked and cutting off the power supply.
In some embodiments, the leak threshold is not less than 1L/min.
In some embodiments, a flow sensor for detecting a flow rate value in the water pipe is connected in series to the water pipe, the flow sensor is disposed on one side of the water valve close to the water containing cavity, when the water valve is closed, if the water leakage value is 0 and the flow rate value is greater than 0, it is determined whether a ratio between the frequency spectrum value and the flow rate value is greater than a reference value, and when the ratio between the frequency spectrum value and the flow rate value is not greater than the reference value, a fault of the flow sensor is prompted.
In some embodiments, the control method of the home appliance further includes: when the household appliance is judged to have leakage risk, water leakage or water pipe burst, warning information is sent to a network far-end APP to prompt a user and/or a telephone short message notification user.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic view of a home appliance according to an embodiment of the present invention;
fig. 2 is a side view of the household appliance shown in fig. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a schematic view of a home appliance according to an embodiment of the present invention;
fig. 6 is a control flowchart of a control method of a home appliance according to an embodiment of the present invention.
Reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An embodiment of a household appliance 100 according to the first aspect of the present invention is described below with reference to fig. 1-6.
As shown in fig. 1 to 4, a household appliance 100 according to an embodiment of the first aspect of the present invention includes: a chamber (not shown), a water conduit 1, a detection device (e.g., a MEMS pressure sensor 2 as described below), and a controller.
Specifically, the cavity is internally provided with a water containing cavity; the water pipe 1 is connected with the cavity, and the water pipe 1 is communicated with the water containing cavity. Here, it should be noted that the phrase "the water pipe 1 communicates with the water containing chamber" means: when fluid (such as water) is injected into the water containing cavity, the position where the water pipe 1 is connected with the water containing cavity is always positioned below the liquid level in the water containing cavity, and when the liquid is introduced into the water containing cavity, the water pipe 1 is communicated with the water containing cavity in the same water area, in other words, the water pipe 1 is communicated with the water containing cavity approximately like a communicating vessel. Preferably, the water pipe 1 is in communication with the bottom of the water containing chamber. Here, the bottom of the water containing cavity is not limited to the bottom wall of the water containing cavity, but may be a side wall of the water containing cavity, as long as the liquid stored in the water containing cavity is ensured to be communicated with the liquid in the water pipe 1.
A water valve is arranged on the water pipe 1; the water valve is used for controlling the on-off of the water pipe 1.
The detection device is arranged on the water pipe 1 and is positioned on one side of the water valve close to the water containing cavity. The detection device comprises a pressure detection part for detecting the pressure of fluid in the water pipe 1 and a frequency spectrum detection part suitable for generating vibration under the impact of the fluid; that is, the detection means includes a pressure detection portion for detecting the pressure of the fluid within the water pipe 1 and a spectrum detection portion adapted to generate vibration under the impact of the fluid and to detect a spectrum value under the vibration.
In a specific example, the household appliance 100 is a dishwasher, the water pipe 1 is a water inlet pipe 1, and the water valve is a water inlet valve. When the water inlet valve is opened, water can be injected into the water containing cavity through the water inlet pipe 1, and when the water inlet valve is closed, the water containing cavity and the water inlet pipe 1 form a closed and communicated water system. Of course, the present invention is not limited thereto, and the water pipe 1 may be any water pipe 1 communicating with the water containing chamber. The detection device is arranged on the water inlet pipe 1 and is positioned at the downstream of the water inlet valve along the water flow direction, namely, the water flow firstly flows through the water inlet valve, then flows to the detection device and finally enters the water containing cavity, namely, the detection device is arranged at one side of the water outlet end of the water inlet valve. The detection device comprises a pressure detection part and a frequency spectrum detection part, wherein the pressure detection part is used for detecting the pressure of the fluid in the water inlet pipe 1, and the frequency spectrum detection part is suitable for generating vibration under the impact of the fluid and is used for detecting the frequency spectrum value under the vibration.
In the working process of the detection device, when normal water flows at the position of the detection device, the change of the frequency spectrum value is synchronous with the change of the pressure value in time, and at the moment, the fact that the whole machine is free of leakage can be judged, namely, when the detection device detects that the change of the frequency spectrum value is synchronous with the change of the pressure value, the whole machine is free of leakage. When the cavity or the water pipe 1 has a small leakage, the pressure value changes (changes suddenly), but the leakage amount is small, and the fluid hardly flows, so that the frequency spectrum value at the moment is unchanged, that is, when the detection device detects that the pressure value changes and the frequency spectrum value is unchanged, the leakage risk of the whole machine can be judged. When the water pipe 1 bursts, the pressure value returns to the initial value (atmospheric pressure) of the open type due to the fact that the water pipe 1 bursts and is similar to the fact that the water pipe 1 is opened, and the fluid rushes out from the open position due to the fact that the water pipe 1 is opened, at the moment, the frequency spectrum value exceeds the maximum value, in other words, when the detection device detects that the pressure value returns to the initial value and the frequency spectrum value exceeds the set value of the maximum value, the water pipe 1 can be judged to burst.
The controller is in communication with the detection device. Therefore, the detection device can feed back the detected pressure value and the detected spectrum value to the controller, the controller can control the action of the household appliance 100 according to the data detected by the detection device, for example, when the controller judges that leakage risks exist according to the detection data, a user can be prompted through the warning lamp or the buzzer, when the controller judges that water leakage exists according to the detection data, the warning lamp and the buzzer can be controlled to prompt the user, and meanwhile, the power supply is cut off.
According to the household appliance 100 provided by the embodiment of the invention, the detection device is arranged on the water pipe 1, and the detection device is used for simultaneously detecting the water flow pressure in the water pipe 1 and the frequency spectrum value under the water flow impact, so that whether the household appliance 100 has a water leakage point can be judged through the pressure change and the frequency spectrum value change, and the effective detection of the water leakage of the household appliance 100 is realized.
In one embodiment of the invention, the detection means may be a MEMS pressure sensor 2. The MEMS pressure sensor 2 is a thin film element and deforms under pressure, so that a frequency spectrum value under water flow impact can be measured while water pressure is detected, the structure is simple, and the cost is reduced.
In some embodiments of the invention, as shown in fig. 3 and 4, the detection means may be arranged perpendicular to the central axis of the water pipe 1. Of course, the invention is not limited thereto, but the detection means may also be arranged parallel to the central axis of the water pipe 1. Here, it should be noted that, when the arrangement of the detection device on the water pipe 1 is different, the determination condition for determining whether or not water leakage occurs will also be different, but the principle is the same.
In some embodiments of the present invention, a flow sensor for detecting flow may be connected in series to the water pipe 1, and the flow sensor may be disposed at a side of the water valve close to the water containing cavity. For example, a flow sensor is connected in series to the inlet pipe 1, and the flow sensor is located downstream of the inlet valve on the inlet pipe 1 in the water flow direction. Therefore, when the water inlet valve is closed and water leaks from the cavity or the water inlet pipe 1, the flow sensor can also realize the effect of detecting whether a water leakage point exists in the water system. Meanwhile, the flow sensor and the detection device can be checked with each other, so that the misjudgment rate can be reduced, and the detection accuracy is improved.
In some embodiments of the present invention, the household appliance 100 may further include: and the buzzer and/or the warning lamp are/is in communication connection with the controller. That is to say, the household electrical appliance 100 may be provided with a buzzer, a warning light, a buzzer and a warning light, and both the buzzer and the warning light are connected to the controller. When the detection device detects water leakage in the water system, the controller can control the buzzer to send out warning sound or turn on a warning lamp to prompt a user that a water leakage point exists. Wherein, according to the difference of degree of leaking, the warning light can show for different colours, of course, also can set up the warning light of different colours. For example, when detection device detects that there is the seepage risk, the warning light can be opened and show for yellow to remind the user probably to have the point of leaking water, when detection device detected water system and leaked water, the warning light can show for red, with warning user's system and leaking.
In some embodiments of the present invention, the household appliance 100 may be a dishwasher.
The control method of the household appliance 100 according to the second aspect embodiment of the present invention, the household appliance 100 being the household appliance 100 according to the above first aspect embodiment of the present invention, comprises:
when the water valve is closed, the detection device monitors the pressure value in the water pipe 1 and the frequency spectrum value of the frequency spectrum detection part in real time, and if the pressure value changes and the frequency spectrum value does not change, the leakage risk of the household appliance 100 is prompted; if the pressure value recovers the initial atmospheric pressure and the frequency spectrum value exceeds the maximum set frequency spectrum value, the water pipe 1 is warned to burst and the power supply is cut off.
That is, when the water valve is closed, the water pipe 1 on one side of the water valve and the water containing cavity form a closed and communicated water system. If the detection device detects that the pressure in the water pipe 1 changes and the frequency spectrum value is unchanged, the pressure value changes, which indicates that the closed water system formed by the water pipe 1 and the water containing cavity has pressure change, and the frequency spectrum value is unchanged, which indicates that no fluid flows in the closed water system, and there is pressure change and no fluid flows, which indicates that a leakage point possibly exists in the system, and the leakage amount is small, therefore, a user can be prompted to have leakage risk.
If the detection device detects that the pressure in the water pipe 1 is restored to the atmospheric pressure and the frequency spectrum value exceeds the maximum set frequency spectrum value, the pressure value is restored to the initial atmospheric pressure, the water pipe 1 is indicated to be communicated with the external space, the frequency spectrum value exceeds the maximum set frequency spectrum value, the vibration and amplitude of the frequency spectrum detection part caused by water flow impact exceed the set value, the water pipe 1 is indicated to be burst when the water pipe 1 is communicated with the external space and the water flow impact is strong, and therefore the power supply can be cut off and the water pipe 1 of a user can be warned to burst.
In addition, when the pressure value change and the spectrum value change are consistent, no water leakage exists.
According to the control method of the household appliance 100, whether a water leakage point exists in the household appliance 100 or not can be detected, and when water leakage exists, a power supply can be cut off, so that secondary accidents are avoided.
In some embodiments of the present invention, the control method may further include: the controller obtains a water leakage value of the household appliance 100 according to the pressure value change and the spectrum value change, and when the water leakage value is larger than 0 and not larger than a leakage limit value, the controller prompts that the household appliance 100 has a leakage risk; when the water leakage value is greater than the leakage threshold, the household appliance 100 is warned to leak water and the power is cut off. That is, when the water leakage value is smaller than the leakage threshold, the user is only reminded of the leakage risk, and at this time, the household appliance 100 can continue to work without power off, and the power supply is cut off only when the water leakage value is larger than the leakage threshold. Therefore, the influence of misjudgment on the normal operation of the household appliance 100 can be avoided.
Wherein, in some examples, the leakage threshold is not less than 1L/min. Therefore, the influence of misjudgment on the normal operation of the electric appliance can be avoided under the condition of correctly detecting the leakage point. For example, the leakage threshold may be set to 1L/min, specifically, when the water leakage value is less than 1L/min, the user is prompted to have a leakage risk, and when the water leakage value is greater than or equal to 1L/min, the power supply is cut off, and the user is warned that water leakage exists. Of course, the invention is not so limited and the leak limits may be set to 1.1L/min, 1.3L/min, 1.5L/min, 1.8L/min, etc.
In some embodiments of the present invention, a flow sensor for detecting a flow value in the water pipe 1 may be connected in series to the water pipe 1, and the flow sensor is disposed at a side of the water valve close to the water containing cavity, for example, the flow sensor is disposed at a downstream of the water inlet valve in a water flow direction. When the water valve is closed, if the water leakage value is 0 and the flow value is larger than 0, whether the ratio between the frequency spectrum value and the flow value is larger than a reference value or not is judged, and when the ratio between the frequency spectrum value and the flow value is not larger than the reference value, a fault of the flow sensor is prompted. Therefore, whether the flow sensor has faults or not can be verified by using the detection device, and fault prompt of the flow sensor is realized.
In some embodiments of the present invention, the control method of the home appliance 100 may further include: when the household appliance 100 is judged to have leakage risk, water leakage or water pipe burst, warning information is sent to a network far-end APP to prompt a user, and/or a telephone short message is sent to the user. Therefore, the user can conveniently control the water leakage condition of the household appliance 100 in real time.
Referring to fig. 1 to 6, a household appliance 100 according to a specific embodiment of the present invention will be described, wherein the household appliance 100 according to an embodiment of the present invention may be a dishwasher, and a control method of the household appliance 100 according to an embodiment of the present invention may be a control method of the dishwasher.
Specifically, as shown in fig. 1, the dishwasher includes a water inlet pipe 1 and a cavity, the cavity has a water containing cavity, the water inlet pipe 1 is communicated with the bottom of the water containing cavity, a water inlet valve is arranged on the water inlet pipe 1, an MEMS pressure sensor 2 is arranged on one side of the water inlet pipe 1, which is located at a water outlet end of the water inlet valve, and the MEMS pressure sensor 2 is used for simultaneously detecting a pressure value and a frequency spectrum value generated by water flow impact. The MEMS pressure sensor 2 can be vertical or horizontal to the water inlet pipe 1, and when the MEMS pressure sensor 2 is placed in different modes, the condition of water leakage in the water channel is judged to be different.
When normal water flows, the change time of the frequency spectrum value and the pressure value is synchronous, if the water pipe 1 leaks slightly, the pressure value changes, the frequency spectrum value is unchanged, and when the water pipe 1 bursts, the pressure value returns to an open initial value (atmospheric pressure), and the frequency spectrum value exceeds a maximum value. Therefore, whether a water leakage point exists in the water path can be judged through different changes of the pressure value and the spectrum value.
According to the dishwasher provided by the embodiment of the invention, the detection of water leakage of products can be effectively solved, a user can be timely reminded when the products have water leakage risks, and a power supply is cut off according to the water leakage condition, so that secondary accidents are avoided.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A household appliance is characterized by comprising
The water storage cavity is arranged in the cavity;
the water pipe is connected with the cavity and communicated with the water containing cavity, and a water valve is arranged on the water pipe;
the detection device is arranged on the water pipe and positioned on one side, close to the water containing cavity, of the water valve, and comprises a pressure detection part and a frequency spectrum detection part, wherein the pressure detection part is used for detecting the pressure of fluid in the water pipe, and the frequency spectrum detection part is suitable for generating vibration under the impact of the fluid and is used for detecting the vibration frequency spectrum;
the controller is in communication connection with the detection device and obtains a water leakage value of the household appliance according to the pressure value change and the spectrum value change,
when the water leakage value is larger than 0 and not larger than the leakage limit value, prompting that the household appliance has leakage risk;
when the water leakage value is larger than the leakage limit value, the household appliance is warned to leak water and the power supply is cut off;
a flow sensor for detecting the flow value in the water pipe is connected in series on the water pipe, the flow sensor is arranged on one side of the water valve close to the water containing cavity,
when the water valve is closed, if the water leakage value is 0 and the flow value is greater than 0, determining whether the ratio between the frequency spectrum value and the flow value is greater than a reference value,
and when the ratio of the frequency spectrum value to the flow value is not greater than a reference value, prompting the flow sensor to have a fault.
2. The household appliance according to claim 1, wherein the detection means is a MEMS pressure sensor.
3. The household appliance according to claim 1, wherein the detection means are arranged perpendicular to the central axis of the water pipe or parallel to the central axis of the water pipe.
4. The household appliance according to claim 1, wherein a flow sensor is connected in series with the water pipe, and the flow sensor is arranged on one side of the water valve close to the water containing cavity.
5. The domestic appliance of claim 1 wherein said water conduit is a water inlet conduit and said water valve is a water inlet valve.
6. The household appliance of claim 1, further comprising: and the buzzer and/or the warning lamp are in communication connection with the controller.
7. A household appliance according to any one of claims 1 to 6, characterized in that the household appliance is a dishwasher.
8. A control method of a household appliance, characterized in that the household appliance is a household appliance according to any one of claims 1 to 7, the control method comprising:
when the water valve is closed, the detection device monitors the pressure value in the water pipe and the frequency spectrum value of the frequency spectrum detection part in real time,
if the pressure value changes and the frequency spectrum value does not change, prompting that the household appliance has a leakage risk;
if the pressure value recovers the initial atmospheric pressure and the frequency spectrum value exceeds the maximum set frequency spectrum value, the water pipe is warned to burst and the power supply is cut off,
the control method further comprises the following steps:
the controller obtains the water leakage value of the household appliance according to the pressure value change and the frequency spectrum value change,
when the water leakage value is larger than 0 and not larger than the leakage limit value, prompting that the household appliance has leakage risk;
when the water leakage value is larger than the leakage limit value, the household appliance is warned to leak water and the power supply is cut off;
a flow sensor for detecting the flow value in the water pipe is connected in series on the water pipe, the flow sensor is arranged on one side of the water valve close to the water containing cavity,
when the water valve is closed, if the water leakage value is 0 and the flow value is greater than 0, determining whether the ratio between the frequency spectrum value and the flow value is greater than a reference value,
and when the ratio of the frequency spectrum value to the flow value is not greater than a reference value, prompting the flow sensor to have a fault.
9. The control method of a home appliance according to claim 8, wherein the leakage threshold value is not less than 1L/min.
10. The control method of a home appliance according to claim 8, further comprising: when the household appliance is judged to have leakage risk, water leakage or water pipe burst, warning information is sent to a network far-end APP to prompt a user and/or a telephone short message notification user.
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| CN110101310A (en) * | 2019-04-09 | 2019-08-09 | 佛山市美的清湖净水设备有限公司 | Water leakage detection device and method for water purification machine and water purification machine |
| CN112147902B (en) * | 2019-06-26 | 2023-10-10 | 上海擎感智能科技有限公司 | Indoor water consumption condition prompting method, system, storage medium and electronic equipment |
| CN111076877A (en) * | 2019-12-19 | 2020-04-28 | 雷磊 | Water pipe leakage detecting device of solar water heater |
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| CN207095800U (en) * | 2017-03-28 | 2018-03-13 | 上海工程技术大学 | Leak water detdction processing system |
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| CN109567717A (en) | 2019-04-05 |
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Effective date of registration: 20221019 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 20 Beijiao Road, Beijiao Town, Shunde District, Foshan, Guangdong Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |