CN108793269B - Water level control method for water purifier water bag and water purifier - Google Patents
Water level control method for water purifier water bag and water purifier Download PDFInfo
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- CN108793269B CN108793269B CN201710285089.4A CN201710285089A CN108793269B CN 108793269 B CN108793269 B CN 108793269B CN 201710285089 A CN201710285089 A CN 201710285089A CN 108793269 B CN108793269 B CN 108793269B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
Abstract
The invention discloses a water level control method of a water purifier water bag and a water purifier, wherein the water level control method of the water purifier water bag comprises the following steps: controlling the water bag to intake water, and acquiring the water intake duration of the water bag; and when the water inlet time of the water bag reaches the preset time, controlling the water bag to stop water inlet. The technical scheme of the invention can avoid the water bag from being burst due to excessive water inlet.
Description
Technical Field
The invention relates to the field of water purification, in particular to a water level control method of a water bag of a water purifier and the water purifier.
Background
In the existing water purifier, a water bag is used for storing purified water obtained by filtering a filter element, so that when a user needs to use water, the water in the water bag can be directly used, and the waiting time for the user to use the purified water is reduced. However, the water quantity of the water bag must be detected by using the water bag, so as to prevent the water bag from bursting due to excessive water inflow when the water bag is used for storing purified water.
At present, the water level of the water bag is detected by a water level detector arranged in the water bag, so that the water bag is controlled to stop water feeding when the water bag is full. However, when the water level detecting element fails to detect the water level in the water bag, the water level detecting element cannot detect whether the water bag is full of water, so that the water bag is filled with water all the time, and the water bag is burst due to excessive water inflow.
Disclosure of Invention
The invention mainly aims to provide a water level control method of a water bag of a water purifier, aiming at avoiding the water bag from bursting due to excessive water inflow.
In order to achieve the above object, the present invention provides a water level control method of a water bag of a water purifier, comprising the steps of:
controlling the water bag to intake water, and acquiring the water intake duration of the water bag;
and when the water inlet time of the water bag reaches the preset time, controlling the water bag to stop water inlet.
Preferably, the water level control method of a water purifier water bag further comprises:
receiving a water level detection signal in the water bag;
and when the water level in the water bag is determined to be higher than a preset first upper water level limit value according to the water level detection signal in the water bag, controlling a drainage pipeline on the water bag to communicate the water bag with the atmosphere.
Preferably, the water level control method of a water purifier water bag further comprises:
when the water level in the water bag is determined to be lower than a preset water level lower limit value according to the water level detection signal in the water bag, controlling the water bag to feed water; and/or the presence of a gas in the gas,
and when the water level in the water bag is determined to be higher than a preset second upper water level limit value according to the water level detection signal in the water bag, controlling the water bag to stop water inflow, wherein the preset second upper water level limit value is smaller than the preset first upper water level limit value.
Preferably, when the water inlet duration of the water bag reaches a preset duration, the step of controlling the water bag to stop water inlet comprises:
when the water inlet time of the water bag reaches a preset time, receiving a water level detection signal in the water bag;
when the water level in the water bag is determined to be lower than a preset third water level upper limit value according to the water level detection signal in the water bag, controlling the water bag to stop water inflow and giving an alarm; the preset third water level upper limit value is smaller than the preset first water level upper limit value.
Preferably, the water level control method of a water purifier water bag further comprises:
receiving a water pressure detection signal of a main water inlet of the water purifier;
and when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet, controlling the main water inlet to stop water inflow.
The present invention also provides a water purifier comprising:
the water outlet pipeline is used for providing drinking water;
the water inlet side of the filter element is connected with a water source;
the water bag is communicated with the water outlet side of the filter element and is also communicated with the water outlet pipeline; and the number of the first and second groups,
the controller is used for controlling the water bag to intake water and acquiring the water intake time of the water bag; the controller is also used for controlling the water bag to stop water inflow when the water inflow time of the water bag reaches a preset time length.
Preferably, the water purifier further includes:
the water level detection piece is arranged in the water bag and used for detecting the water level in the water bag;
one end of the water discharging pipeline is communicated with the water bag, and the other end of the water discharging pipeline is communicated with the atmosphere;
the controller is further used for receiving a water level detection signal in the water bag and controlling the water drainage pipeline to communicate the water bag with the atmosphere when the water level in the water bag is determined to be higher than a preset first upper water level limit value according to the water level detection signal in the water bag.
Preferably, the controller is further configured to control the water bag to supply water when the water level in the water bag is determined to be lower than a preset lower limit value of the water level according to the water level detection signal in the water bag; and/or the presence of a gas in the gas,
the controller is further used for controlling the water bag to stop water inflow when the water level in the water bag is determined to be higher than a preset second upper water level limit value according to the water level detection signal in the water bag, and the preset second upper water level limit value is smaller than the preset first upper water level limit value.
Preferably, the water purifier further comprises an alarm device electrically connected with the controller;
the controller is further used for receiving a water level detection signal in the water bag when the water inlet duration of the water bag reaches a preset duration, controlling the water bag to stop water inlet when the water level in the water bag is determined to be lower than a preset third upper water level limit value according to the water level detection signal in the water bag, and controlling the alarm device to give an alarm; the preset third water level upper limit value is smaller than the preset first water level upper limit value.
Preferably, the water purifier further includes:
the water pressure detection piece is electrically connected with the controller and is used for detecting the water pressure of the main water inlet of the water purifier;
the controller is used for controlling the main water inlet to stop water inflow when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet.
According to the invention, the water inlet time of the water bag is recorded, and when the water inlet time reaches the preset time, the controller controls the water bag to feed water. The mode of controlling the water inlet time can be used independently, and can also be used in cooperation with the water level detection part to control the water level in the water bag, so that the phenomenon that the water bag is always filled with water and burst when the water level detection part of the water bag breaks down and cannot detect a water full signal in the water bag can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a water level control method of a water bag of a water purifier according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a water level control method of a water bag for a water purifier according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a water level control method of a water bag of a water purifier according to another embodiment of the present invention;
FIG. 4 is a detailed flowchart of step S20 in FIG. 1;
FIG. 5 is a schematic flow chart illustrating a water level control method of a water bag of a water purifier according to still another embodiment of the present invention;
fig. 6 is a schematic diagram of functional modules of a water purifier according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
13 | Flushing solenoid valve |
| 11 | |
14 | |
| 12 | Water |
15 | Water pressure detection piece |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a water level control method of a water bag of a water purifier.
In an embodiment of the present invention, as shown in fig. 1, the water level control method of a water purifier water bag includes the steps of:
step S10, controlling the water bag to intake water, and acquiring the water intake duration of the water bag;
in the water purifier, there are various ways of controlling the water supply of the water bag. For example, in some embodiments, a water pump is disposed on the water inlet pipe of the water bag, and the controller controls the water pump to operate, so that the water bag can be filled with water. In other embodiments, a water inlet valve is arranged at the water inlet pipe of the water bag, and then the water inlet valve is controlled to be opened through a controller, so that the water bag is filled with water. Of course, in other embodiments, the controller may also control the main water inlet valve at the main water inlet to open to realize the water inlet of the water bag. In this step, when the water bag starts to feed water, the controller starts a timing function to start timing so as to record the water feeding time of the water bag.
And step S20, when the water inlet duration of the water bag reaches the preset duration, controlling the water bag to stop water inlet.
The controller compares the water inlet time length of the water bag with a preset time length, and when the water inlet time length reaches the preset time length, the controller controls the water bag to stop water inlet. Similarly, the controller may control the water bag to stop feeding water by controlling the water pump to stop working, controlling the water feeding valve to close, controlling the water feeding main valve to close, and the like. In this embodiment, preferably, the preset time period is six to eight hours. It should be noted that the water bag is generally considered to be full when the preset time is reached.
In this embodiment, the water inlet duration of the water bag is recorded, and when the water inlet duration reaches the preset duration, the controller controls the water bag to inlet water. The mode of controlling the water inlet time can be used independently, and can also be used in cooperation with the water level detection part to control the water level in the water bag, so that the phenomenon that the water bag is always filled with water and burst when the water level detection part of the water bag breaks down and cannot detect a water full signal in the water bag can be avoided.
Further, as shown in fig. 2, the water level control method of the water purifier water bag further includes:
step S30, receiving a water level detection signal in the water bag;
in step S30, a water level detector is disposed in the water bag to detect the water level in the water bag, and a detected water level detection signal is sent to the controller. Preferably, the water level detecting member is a water level probe.
And step S40, when the water level in the water bag is determined to be higher than a preset first upper limit value of the water level according to the water level detection signal in the water bag, controlling a drainage pipeline on the water bag to communicate the water bag with the atmosphere.
Step S40 specifically includes the following steps:
the controller compares the water level in the water bag with a first water level upper limit value according to the water level detection signal in the water bag;
when the water level in the water bag is higher than a preset first upper water level limit value, the controller controls a drainage pipeline on the water bag to communicate the water bag with the atmosphere.
Specifically, in this embodiment, a water discharge pipeline is disposed on the water bag, and a flushing solenoid valve is disposed on the water discharge pipeline and is respectively communicated with the water bag and the atmosphere. When the water purifier is in a water purification state, the controller controls the flushing electromagnetic valve to be disconnected from the atmosphere, so that the water bag is disconnected from the atmosphere, and the filtered purified water flows into the water bag and is stored in the water bag. When the water bag of the water purifier is in a full water overflow state, namely the water level in the water bag is higher than a preset first upper water level limit value, the controller controls the flushing electromagnetic valve to be communicated with the atmosphere. At this time, because the water pressure in the water bag is higher than the atmospheric pressure, the water in the water bag flows to the drainage pipeline and flows to the outside through the flushing electromagnetic valve, so that the water bag is prevented from bursting. Preferably, the flushing electromagnetic valve is arranged on the water outlet side of the filter element of the water purifier and can be communicated with the filter element.
When the water purifier is used for preparing purified water, the water level in the water bag is preferably up to a preset second upper limit value of the water level. And the preset upper limit value of the second water level is smaller than the preset upper limit value of the first water level. However, due to a failure of the control system, the controller does not receive the signal that the water in the water bag is full, which may cause the water in the water bag to enter when the water level in the water bag reaches the second upper limit value of the water level, and the volume of the water bag is still increasing. Therefore, in order to prevent the water bag from being broken due to the deformation, when the controller determines that the water level in the water bag is higher than the preset first upper water level limit value, the controller controls the water discharge pipeline to communicate the water bag with the atmosphere, so that the water in the water bag is discharged. However, in order to avoid waste of water resources, when the water level in the water bag is between the first upper limit value of the water level and the second upper limit value of the water level, the water bag is in the deformable bearing range at the moment, so that the water in the water bag does not need to be discharged.
Further, as shown in fig. 3, the water level control method of the water purifier water bag further includes:
step S50, controlling the water bag to feed water when the water level in the water bag is determined to be lower than the preset water level lower limit value according to the water level detection signal in the water bag; and/or the presence of a gas in the gas,
and step S60, when the water level in the water bag is determined to be higher than a preset second upper water level limit value according to the water level detection signal in the water bag, controlling the water bag to stop water inflow, wherein the preset second upper water level limit value is smaller than the preset first upper water level limit value.
In the embodiment of the invention, the controller can control the water inlet and the water stop of the water bag according to the time length, and can also control the water inlet and the water stop of the water bag according to the water level.
For example, in some embodiments, the controller controls the water bag to be filled according to a water level, and the controller controls the water bag to stop filling according to a water filling time. Specifically, in this embodiment, the controller controls the water bag to supply water when the water level in the water bag is determined to be lower than a preset lower limit value of the water level according to the water level detection signal in the water bag; when the water inlet time of the water bag reaches the preset time, the controller controls the water bag to stop water inlet so as to prevent the water bag from bursting.
In other embodiments, the controller controls the water bag to be filled and stops filling according to the water level. Specifically, in this embodiment, the controller controls the water bag to supply water when the water level in the water bag is determined to be lower than a preset lower limit value of the water level according to the water level detection signal in the water bag; and the controller also controls the water bag to stop water inflow when the water level in the water bag is determined to be higher than a preset second upper limit value of the water level according to the water level detection signal in the water bag. And the preset upper limit value of the second water level is smaller than the preset upper limit value of the first water level.
In other embodiments, the controller controls the water bag to be filled according to the water outlet duration, and the controller controls the water bag to stop filling according to the water level. Specifically, in this embodiment, when the water purifier is in a water use state, water in the water bag is continuously discharged, and the controller acquires the water discharge duration of the water bag; when the water outlet time of the water bag reaches the preset water outlet time, the water in the water bag is less, and the controller controls the water bag to feed water. And in the water inlet process of the water bag, the water level detection piece detects the water level in the water bag, and when the controller determines that the water level in the water bag is higher than a preset second upper water level limit value according to the water level detection signal in the water bag, the water bag is controlled to stop water inlet.
In the invention, when the water inlet duration is lower than the preset duration, the controller only determines whether the water bag stops water inlet according to the water level detection signal in the water bag. Only when the water inlet time reaches the preset time, the controller controls the water bag to stop water inlet according to the time, so that the phenomenon that the water bag always enters water when the water level detection piece or other parts break down can be avoided. The water level control method of the invention does not depend on one mode to control the water bag to stop water inflow, can combine the water level with time to control the water bag to stop water inflow, and can play a role of double insurance.
Further, as shown in fig. 4, when the water inlet duration of the water bag reaches a preset duration, the step of controlling the water bag to stop water inlet includes:
step S21, receiving a water level detection signal in the water bag when the water inlet duration of the water bag reaches a preset duration;
and step S22, when the water level in the water bag is determined to be lower than the preset third upper limit value of the water level according to the water level detection signal in the water bag, controlling the water bag to stop water inflow and giving an alarm.
In this embodiment, generally, when the water inlet duration of the water bag reaches a preset duration, the water level in the water bag can reach a preset third upper limit value of the water level. However, when the detection result is always lower than the third upper limit level due to a detection fault of the water level detection element or a breakage of the water bag, even if the water inlet duration reaches a preset duration, the controller receives a water level detection signal lower than the third upper limit level, so that the water bag cannot be controlled to stop water inlet by the water level detection signal, and therefore, the water bag needs to be controlled to stop water inlet by means of a time factor. When the water inlet time reaches a preset time, the water level detection piece may detect that the water level in the water bag rises to the third upper limit value because of the phenomenon that part of water remaining in the pipeline flows into the water bag, and at this time, the water level detection piece does not break down; or the water level detection part only has a phenomenon of misjudgment in a part of time period, so in order to avoid the occurrence of similar phenomena, when the water inlet time of the water bag reaches the preset time length, the controller needs to receive the water level detection signal in the water bag again, and when the water level in the water bag is judged to be still lower than the preset third water level upper limit value, the water level detection part or the water bag is indicated to have a fault, so that the alarm device is controlled to give an alarm to remind a user of maintenance. The third water level upper limit value may be the same as or different from the second water level upper limit value.
Further, as shown in fig. 5, the water level control method of the water purifier water bag further includes:
step S70, receiving a water pressure detection signal of a total water inlet of the water purifier;
in step S70, a pressure sensor is provided at the total water inlet to detect the water pressure at the total water inlet.
And step S80, controlling the main water inlet to stop water inflow when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet.
In step S80, when the water pressure at the total water inlet is lower than the preset pressure value, it indicates that the water pressure of the water source is too low, and even if the water is processed by the booster pump, the water may not reach a high pressure value, and cannot be completely filtered by the filter element, so that the pure water yield is low. Meanwhile, air can also be generated in the pipeline, and after the air flows into the water bag, water can not flow into the water bag. Therefore, the water inlet is stopped by controlling the main water inlet, and the phenomenon can be avoided.
As shown in fig. 6, the present invention further provides a water purifier 10, wherein the water purifier 10 comprises a filtering module and a water bag, the filtering module comprises at least one filter element, the water inlet side of the filter element is communicated with a water source such as tap water, and the water outlet side of the filter element is communicated with the water bag; the water bag is communicated with the water outlet pipeline to provide drinking water for users. Specifically, after being filtered by the filtering module, the tap water can flow into the water bag for storage, and when a user needs to use the water, the water in the water bag flows out through the water outlet pipeline so as to provide drinking water for the user.
The water purifier 10 further comprises a controller 11, wherein the controller 11 is used for controlling the water bag to feed water, and is used for recording the water feeding duration of the water bag when the water bag of the water purifier 10 feeds water; the controller 11 is further configured to control the water bag to stop water inflow when the water inflow duration of the water bag reaches a preset duration.
In the embodiment of the invention, the water inlet mode of the water bag can be controlled in various ways. For example, in some embodiments, a water pump is disposed on a water inlet pipe of the water bag (the water inlet pipe is a pipeline connected to the filtering module), and the controller 11 controls the water pump to operate, so that the water bag can be filled with water. In other embodiments, a water inlet valve is disposed at a water inlet pipe of the water bag, and the controller 11 controls the water inlet valve to open, so that the water bag can be filled with water. Of course, in other embodiments, the controller 11 may also control the main water inlet (the main water inlet refers to a water inlet communicated with an external water source) to open the main water inlet valve to supply water to the water bag. In this step, when the water bag starts to fill water, the controller 11 starts a timing function to start timing so as to record the water filling time of the water bag.
The controller 11 is further configured to compare the water inlet duration of the water bag with a preset duration, and when the water inlet duration reaches the preset duration, the controller 11 controls the water bag to stop water inlet. Similarly, the controller 11 can control the water bag to stop feeding water by controlling the water pump to stop working, controlling the water feeding valve to close, controlling the water feeding main valve to close, and the like. In this embodiment, preferably, the preset time period is six to eight hours. It should be noted that the water bag is generally considered to be full when the preset time is reached.
In the invention, the water inlet time of the water bag is recorded, and when the water inlet time reaches the preset time, the controller 11 controls the water bag to feed water. The mode of controlling the water inlet time can be used independently, and can also be used in cooperation with the water level detection part to control the water level in the water bag, so that the phenomenon that the water bag is always filled with water and burst when the water level detection part of the water bag breaks down and cannot detect a water full signal in the water bag can be avoided.
In an embodiment, referring to fig. 6, the water purifier 10 further includes:
a water level detecting member 12 provided in the water bag for detecting a water level in the water bag and transmitting a detected water level detecting signal to the controller 11;
one end of the water discharging pipeline is communicated with the water bag, and the other end of the water discharging pipeline is communicated with the atmosphere;
the controller 11 is further configured to receive a water level detection signal in the water bag;
the controller 11 is further configured to control the water drainage pipeline to communicate the water bag with the atmosphere when it is determined that the water level in the water bag is higher than a preset first upper limit of the water level according to the water level detection signal in the water bag.
Specifically, in this embodiment, a water discharge pipeline is disposed on the water bag, a flushing solenoid valve is disposed on the water discharge pipeline, and the flushing solenoid valve 13 is respectively communicated with the water bag and the atmosphere. When the water purifier 10 is in a water purification state, the controller 11 controls the flushing solenoid valve 13 to be disconnected from the atmosphere, so that the water bag is disconnected from the atmosphere, and the filtered purified water flows into the water bag and is stored in the water bag. When the water bag of the water purifier 10 is in a full water overflow state, that is, the water level in the water bag is higher than a preset first upper water level limit, the controller 11 controls the flushing solenoid valve 13 to communicate with the atmosphere. At this time, since the water pressure in the water bag is higher than the atmospheric pressure, the water in the water bag flows to the drain line and flows to the outside through the flushing solenoid valve 13, thereby preventing the water bag from bursting. Preferably, the flushing solenoid valve 13 is provided on the water outlet side of the filter element of the water purifier 10 and is capable of communicating with the filter element. Preferably, the water level detecting member 12 is a water level probe.
When the water purifier 10 is used to produce purified water, the water level in the water bag is preferably at a second upper limit value. And the preset upper limit value of the second water level is smaller than the preset upper limit value of the first water level. However, due to a control system failure, the controller 11 does not receive the signal that the water in the water bag is full, which may cause the water in the water bag to enter when the water level in the water bag reaches the second upper limit value of the water level, and the volume of the water bag is still increasing. Therefore, in order to prevent the water bag from being broken due to the deformation, when the controller 11 determines that the water level in the water bag is higher than the first upper limit value, the controller 11 controls the water discharge pipeline to connect the water bag with the atmosphere, so that the water in the water bag is discharged. However, in order to avoid waste of water resources, when the water level in the water bag is between the first upper limit value of the water level and the second upper limit value of the water level, the water bag is in the deformable bearing range at the moment, so that the water in the water bag does not need to be discharged.
In an embodiment, the controller 11 is further configured to control the water bag to supply water when the water level in the water bag is determined to be lower than a preset lower limit value of the water level according to the water level detection signal in the water bag; and/or the presence of a gas in the gas,
the controller 11 is further configured to control the water bag to stop water inflow when it is determined that the water level in the water bag is higher than a preset second upper water level limit value according to the water level detection signal in the water bag, where the preset second upper water level limit value is smaller than the preset first upper water level limit value.
In the embodiment of the present invention, the controller 11 may control the water bag to be filled and stop filling according to a time period, and the controller 11 may control the water bag to be filled and stop filling according to a water level.
For example, in some embodiments, the controller 11 controls the water bag to be filled according to a water level, and the controller 11 controls the water bag to stop filling according to a water filling time period. Specifically, in this embodiment, the controller 11 controls the water bag to supply water when it is determined that the water level in the water bag is lower than the preset lower limit value of the water level according to the water level detection signal in the water bag; when the water inlet time of the water bag reaches the preset time, the controller 11 controls the water bag to stop water inlet, so as to prevent the water bag from bursting.
In other embodiments, the controller 11 controls the water bag to be filled and stops filling according to the water level. Specifically, in this embodiment, the controller 11 controls the water bag to supply water when it is determined that the water level in the water bag is lower than the preset lower limit value of the water level according to the water level detection signal in the water bag; the controller 11 also controls the water bag to stop water inflow when the water level in the water bag is determined to be higher than a preset second upper limit value of the water level according to the water level detection signal in the water bag. And the preset upper limit value of the second water level is smaller than the preset upper limit value of the first water level.
In other embodiments, the controller 11 controls the water bag to be filled according to the water outlet duration, and the controller 11 controls the water bag to stop filling according to the water level. Specifically, in this embodiment, when the water purifier 10 is in a water use state, water in the water bag is continuously discharged, and the controller 11 obtains the discharge time period of the water bag; when the water outlet time of the water bag reaches the preset water outlet time, the water in the water bag is less, and at the moment, the controller 11 controls the water bag to feed water. In the water inlet process of the water bag, the water level detection part 12 detects the water level in the water bag, and when the controller 11 determines that the water level in the water bag is higher than a preset second upper limit value of the water level according to the water level detection signal in the water bag, the water bag is controlled to stop water inlet.
In the present invention, when the water inlet duration is shorter than a preset duration, the controller 11 only determines whether the water bag stops water inlet according to the water level detection signal in the water bag. Only when the water inlet time reaches the preset time, the controller 11 controls the water bag to stop water inlet according to the time, so that the water bag can be prevented from always entering when the water level detecting part 12 or other parts break down. The water level control method of the invention does not depend on one mode to control the water bag to stop water inflow, can combine the water level with time to control the water bag to stop water inflow, and can play a role of double insurance.
Preferably, the water purifier 10 includes three water level detecting members 12, one of which is a low water level probe for detecting a lower limit value of the water level of the water bag; one is a first high water level probe for detecting a first upper water level limit of the water bag; the other one is a second high water level probe which is used for detecting the upper limit value of the second water level of the water bag.
Further, the water purifier 10 further comprises an alarm device 14 electrically connected with the controller 11;
the controller 11 is further configured to receive a water level detection signal in the water bag when the water inlet duration of the water bag reaches a preset duration, and control the water bag to stop water inlet and control the alarm device 14 to alarm when it is determined that the water level in the water bag is lower than a preset third upper limit water level according to the water level detection signal in the water bag.
In this embodiment, generally, when the water inlet duration of the water bag reaches a preset duration, the water level in the water bag can reach a preset third upper limit value of the water level. However, when the detection result is always lower than the third upper limit level due to the detection failure of the water level detecting element 12 or the breakage of the water bag, even if the water inlet time reaches the preset time, the controller 11 receives the water level detection signal that is still lower than the third upper limit level, so that the water bag cannot be controlled to stop water inlet by the water level detection signal, and therefore, the water bag needs to be controlled to stop water inlet by means of time factor. When the water inlet time reaches a preset time, the water level detection piece 12 may detect that the water level in the water bag rises to the third upper limit value because of the fact that part of water remaining in the pipeline flows into the water bag, and at this time, the water level detection piece 12 does not break down; or the water level detection part 12 only has a phenomenon of erroneous judgment in a part of time period, so to avoid the occurrence of similar phenomena, when the water inlet duration of the water bag reaches the preset duration, the controller 11 needs to receive the water level detection signal in the water bag again, and when the water level in the water bag is judged to be still lower than the preset third upper water level limit value, it indicates that the water level detection part 12 or the water bag has a fault, so as to control the alarm device 14 to alarm to remind a user of maintenance. The third water level upper limit value may be the same as or different from the second water level upper limit value.
Optionally, the alarm device 14 is a buzzer, a flashing light or a display screen.
In an embodiment, referring to fig. 6, the water purifier 10 further includes:
a water pressure detecting member 15 for detecting a water pressure of a total water inlet of the water purifier 10;
and the controller 11 is used for controlling the main water inlet to stop water inflow when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet.
In this embodiment, a water pressure detecting member 15 such as a pressure sensor is provided at the total water inlet to detect the water pressure at the total water inlet. When the water pressure of total water inlet is less than preset pressure value, show that water source water pressure is too low, even through the processing of booster pump, also can be difficult to reach higher pressure value, and can't filter through the filter core completely for pure water yield is low. Meanwhile, air can also be generated in the pipeline, and after the air flows into the water bag, water can not flow into the water bag. Therefore, the water inlet is stopped by controlling the main water inlet, and the phenomenon can be avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A water level control method of a water bag of a water purifier is characterized by comprising the following steps:
controlling the water bag to intake water, and acquiring the water intake duration of the water bag;
when the water inlet time of the water bag reaches a preset time, controlling the water bag to stop water inlet;
the water level control method of the water purifier water bag further comprises the following steps:
receiving a water level detection signal in the water bag;
when the water level in the water bag is determined to be higher than a preset first upper water level limit value according to the water level detection signal in the water bag, controlling a drainage pipeline on the water bag to communicate the water bag with the atmosphere;
when the water level in the water bag is determined to be higher than a preset second upper water level limit value according to the water level detection signal in the water bag, controlling the water bag to stop water inflow, wherein the preset second upper water level limit value is smaller than the preset first upper water level limit value;
when the water inlet time of the water bag reaches the preset time, the step of controlling the water bag to stop water inlet comprises the following steps:
when the water inlet time of the water bag reaches a preset time, receiving a water level detection signal in the water bag;
and when the water level in the water bag is determined to be lower than a preset third upper water level limit value according to the water level detection signal in the water bag, controlling the water bag to stop water inflow and giving an alarm, wherein the preset third upper water level limit value is smaller than the preset first upper water level limit value.
2. The water level control method of a water purifier water bag according to claim 1, further comprising:
and controlling the water bag to feed water when the water level in the water bag is determined to be lower than the preset lower limit value of the water level according to the water level detection signal in the water bag.
3. The water level control method of a water purifier water bag according to any one of claims 1 to 2, further comprising:
receiving a water pressure detection signal of a main water inlet of the water purifier;
and when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet, controlling the main water inlet to stop water inflow.
4. A water purifier, characterized by comprising:
the water inlet side of the filter element is connected with a water source, and the water outlet side of the filter element is connected with a water outlet pipeline;
the water bag is communicated with the water outlet side of the filter element and is also communicated with the water outlet pipeline; and the number of the first and second groups,
the controller is used for controlling the water bag to intake water, acquiring the water intake time of the water bag, and controlling the water bag to stop water intake when the water intake time of the water bag reaches a preset time;
the water purifier further includes:
the water level detection piece is arranged in the water bag and used for detecting the water level in the water bag;
one end of the water discharging pipeline is communicated with the water bag, and the other end of the water discharging pipeline is communicated with the atmosphere;
the controller is also used for receiving a water level detection signal in the water bag and controlling the water drainage pipeline to communicate the water bag with the atmosphere when the water level in the water bag is determined to be higher than a preset first upper water level limit value according to the water level detection signal in the water bag;
the controller is also used for controlling the water bag to stop water inflow when the water level in the water bag is determined to be higher than a preset second upper water level limit value according to the water level detection signal in the water bag, and the preset second upper water level limit value is smaller than the preset first upper water level limit value;
the water purifier also comprises an alarm device electrically connected with the controller;
the controller is further used for receiving a water level detection signal in the water bag when the water inlet duration of the water bag reaches a preset duration, controlling the water bag to stop water inlet when the water level in the water bag is determined to be lower than a preset third upper water level limit value according to the water level detection signal in the water bag, and controlling the alarm device to give an alarm; the preset third water level upper limit value is smaller than the preset first water level upper limit value.
5. The water purifier of claim 4,
the controller is also used for controlling the water bag to feed water when the water level in the water bag is determined to be lower than a preset water level lower limit value according to the water level detection signal in the water bag.
6. The water purifier according to any one of claims 4 to 5, further comprising:
the water pressure detection piece is electrically connected with the controller and is used for detecting the water pressure of the main water inlet of the water purifier;
the controller is used for controlling the main water inlet to stop water inflow when the water pressure of the main water inlet is determined to be lower than a preset pressure value according to the water pressure detection signal of the main water inlet.
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Effective date of registration: 20230109 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: 241009 Wan Chun East Road, East District, Wuhu economic and Technological Development Zone, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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