Scale detection device and intelligent household appliance

Abstract

The utility model provides an incrustation detection device and an intelligent household electrical appliance, the incrustation detection device is applied to a water tank, the incrustation detection device comprises a control unit, and a liquid level detection unit, a water inlet pump and a weight detection unit which are electrically connected with the control unit; the liquid level detection unit is arranged inside the water tank, the water inlet pump, the control unit and the weight detection unit are arranged outside the water tank, and the water inlet pump communicates with the water tank to convey water to the water tank; the control unit is used for driving the water inlet pump to start working, and the liquid level detection unit is used for sending the collected actual liquid level height of water in the water tank to the control unit; the control unit is further used for receiving the first liquid level height and driving the water inlet pump to stop working based on the first liquid level height; the weight detection unit is used for collecting the weight of the water tank at different moments and sending the weight to the control unit to obtain the scale condition. According to the water scale detection device, the consistency of the water inflow in the water tank is guaranteed, the accuracy of the detected water scale amount is guaranteed, and the water use safety of a user is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electrical appliances, in particular to a scale detection device and intelligent household appliance. BACKGROUND

[0002] Nowadays, people have higher and higher requirements for water. The water hardness in each region is different, and when the water hardness is high, the boiled water will have more scale. It will affect the taste of drinking water or tea, and long-term cleaning of scale will cause bacteria to breed, which will have a certain impact on the user's physical condition. At present, water tanks with heating function, such as hot pots, are very common, and it is necessary to determine whether cleaning is needed according to the content of scale, but the accuracy of the measured scale content is low, the error rate is high, and the user's water safety is reduced. SUMMARY

[0003] The technical problem to be solved by the present disclosure is to overcome the defects in the prior art that the water tank needs to be cleaned according to the content of scale, the accuracy of the measured scale content is low, the error rate is high, and the user's water safety is low, and to provide a scale detection device and intelligent household appliance.

[0004] The present disclosure solves the above technical problems by the following technical solutions:

[0005] The present disclosure provides a scale detection device, which is applied to a water tank, and comprises a control unit, a liquid level detection unit, a water inlet pump and a weight detection unit which are electrically connected to the control unit;

[0006] The liquid level detection unit is arranged inside the water tank, and the water inlet pump, the control unit and the weight detection unit are arranged outside the water tank. The water inlet pump is in communication with the water tank to deliver water to the water tank.

[0007] The control unit is used to drive the water inlet pump to start working, and the liquid level detection unit is used to send the actual liquid level height of the water collected in the water tank to the control unit.

[0008] The control unit is also used to receive a first liquid level height and drive the water inlet pump to stop working based on the first liquid level height.

[0009] The first liquid level height is the actual liquid level height collected when the liquid level detection unit contacts water.

[0010] The weight detection unit is used to collect the weight of the water tank at different times and send it to the control unit to obtain the scale condition.

[0011] Preferably, the scale detection device further comprises a water outlet pump electrically connected to the control unit.

[0012] The water outlet pump is arranged outside the water tank and is in communication with the water tank to drain water from the water tank.

[0013] The control unit is further configured to receive a second liquid level and drive the water outlet pump to stop working and drive the water inlet pump to start working based on the second liquid level.

[0014] The second liquid level is the actual liquid level collected when the liquid level detection unit cannot contact water.

[0015] Preferably, the scale detection device further comprises a prompt unit electrically connected to the control unit.

[0016] The prompt unit is arranged outside the water tank.

[0017] The control unit is further configured to drive the prompt unit to send a prompt signal representing the scale condition.

[0018] Preferably, the prompt unit comprises at least one of a prompt light, a display screen, and a voice broadcast unit.

[0019] Preferably, the scale detection device further comprises a descale structure electrically connected to the control unit.

[0020] The descale structure is arranged outside the water tank and is in communication with the water tank.

[0021] The control unit is further configured to drive the descale structure to perform a descale operation.

[0022] Preferably, the scale detection device further comprises a filter unit.

[0023] The filter unit is arranged at an inlet and / or an outlet of the water tank.

[0024] Preferably, the scale detection device further comprises a heating unit electrically connected to the control unit.

[0025] The heating unit is arranged inside the water tank.

[0026] The control unit is further configured to drive the heating unit to start or stop heating water in the water tank.

[0027] Preferably, the water tank comprises an air outlet arranged at a top position of the water tank.

[0028] The air outlet is used to discharge steam in the water tank.

[0029] Preferably, the water inlet pump and / or the water outlet pump is a direct current pump.

[0030] The present disclosure also provides a smart household appliance comprising the water tank as described above.

[0031] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, thereby obtaining preferred examples of the present disclosure.

[0032] The positive progress effect of the present disclosure is that:

[0033] The scale detection device of the present disclosure drives the water inlet pump to start working through the control unit, the liquid level detection unit is used to send the actual liquid level height of the water collected in the water tank to the control unit, the control unit receives the first liquid level height collected when the liquid level detection unit contacts the water, and drives the water inlet pump to stop working based on the first liquid level height, the weight detection unit collects the weight of the water tank at different times and sends it to the control unit to obtain the scale condition, which ensures the consistency of the water inlet amount in the water tank and the accuracy of the detected scale amount, and improves the water safety of the user. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a module schematic diagram of the scale detection device of the present disclosure embodiment 1.

[0035] Figure 2 It is a module schematic diagram of the scale detection device of the present disclosure embodiment 2.

[0036] Figure 3 It is a specific example diagram of the scale detection device of the present disclosure embodiment 2. DETAILED DESCRIPTION

[0037] The present disclosure will be further described below by way of examples, but the present disclosure is not limited in the scope of the examples.

[0038] In the present disclosure embodiments, the prefix words such as "first", "second" are only used to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as ordinal words in the present disclosure embodiments does not constitute a limitation on the described objects, and the description of the described objects in the claims or embodiments should not be construed as redundant limitations because of the use of such prefix words. In addition, in the description of the present embodiments, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0039] In the present disclosure embodiments, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in accordance with the relevant legal regulations and do not violate public order and good customs.

[0040] Embodiment 1

[0041] The embodiment provides a scale detection device, which is applied to a water tank.

[0042] As shown in the figure, it is a module schematic diagram of the scale detection device of the embodiment. The scale detection device comprises a control unit 11, and a liquid level detection unit 12, a water inlet pump 13 and a weight detection unit 14 which are electrically connected with the control unit 11 respectively. Figure 1

[0043] The liquid level detection unit 12 is arranged in the water tank, the water inlet pump 13, the control unit 11 and the weight detection unit 14 are arranged outside the water tank, and the water inlet pump 13 is communicated with the water tank to deliver water to the water tank.

[0044] The control unit 11 is used for driving the water inlet pump 13 to start working, and the liquid level detection unit 12 is used for sending the actual liquid level height of the water collected in the water tank to the control unit 11.

[0045] The control unit 11 is also used for receiving the first liquid level height and driving the water inlet pump 13 to stop working based on the first liquid level height.

[0046] The first liquid level height is the actual liquid level height collected when the liquid level detection unit 12 contacts the water.

[0047] The weight detection unit 14 is used for collecting the weight of the water tank at different time and sending to the control unit 11 to obtain the scale condition.

[0048] Specifically, the water tank can be a hot tank. The control unit can be a controller. The liquid level detection unit can be a liquid level probe, for example, a TDS (Total dissolved solids) probe, which is arranged at the top of the hot tank and is used for collecting the actual liquid level height of the water in the hot tank. The weight detection unit can be a mass sensor which is arranged at the bottom of the water tank. The control unit drives the water inlet pump to start working, and the water tank starts to fill water. The tap water enters the water tank through the water inlet. When the water contacts the liquid level detection unit, for example, the actual liquid level height reaches the bottom of the liquid level probe, the control unit drives the water inlet pump to stop working, and the water tank stops filling water. The weight detection unit can weigh the water tank after each time the water tank stops filling water and send to the control unit, and the control unit receives the weight of the water tank at different time sent by the weight detection unit to obtain the scale condition.

[0049] The liquid level detection unit can accurately control the liquid level height to ensure that the water filling amount is consistent each time. When the weight detection unit weighs the water tank, it is ensured that the weight increase is not caused by the inconsistent water filling amount, but by the increase of the scale amount.

[0050] The weight detection unit can accurately measure the mass change of the water tank and accurately measure the increase of the scale. ​

[0051] In the implementation process, the weight detection unit collects the total mass of the water tank and sends it to the control unit. In response to the total mass increasing by 1g-1.5g relative to the preset mass, the control unit obtains that the scale amount is light; in response to the total mass increasing by 1.5g-2g relative to the preset mass, the control unit obtains that the scale amount is moderate; and in response to the total mass increasing by more than 2g relative to the preset mass, the control unit obtains that the scale amount is heavy. The preset mass can be the total mass of the water tank when the water in the water tank is at the first liquid level height, i.e., when the control unit drives the water pump to stop working and the water tank stops water inflow, the total mass of the water tank without scale. The above mass is only an example, which can be adjusted according to actual conditions.

[0052] In the embodiment, the scale detection device drives the water pump to start working through the control unit, the liquid level detection unit is used to send the actual liquid level height of the water collected in the water tank to the control unit, the control unit receives the first liquid level height collected when the liquid level detection unit contacts water, and drives the water pump to stop working based on the first liquid level height. The weight detection unit collects the weight of the water tank at different times and sends it to the control unit to obtain the scale condition, which ensures the consistency of the water inflow in the water tank and the accuracy of the detected scale amount, and improves the water safety of the user.

[0053] Embodiment 2

[0054] The embodiment provides a scale detection device, which is a further improvement of the embodiment 1.

[0055] In an implementable scheme, as shown in Figure 2 The scale detection device further comprises a water outlet pump 15 electrically connected with the control unit 11;

[0056] The water outlet pump 15 is arranged outside the water tank, and the water outlet pump 15 is communicated with the water tank to drain water from the water tank;

[0057] The control unit 11 is further used to receive the second liquid level height, and drive the water outlet pump 15 to stop working based on the second liquid level height, and drive the water inlet pump 13 to start working;

[0058] The second liquid level height is the actual liquid level height collected when the liquid level detection unit 12 cannot contact water.

[0059] Specifically, the control unit drives the water outlet pump to start working, and the water tank starts to drain water, and the water flows out through the water outlet. When the liquid level drops to a certain height, the control unit drives the water outlet pump to stop working, and the water tank stops draining water, and at the same time, the control unit drives the water inlet pump to open again, and the water tank starts to replenish water. The water inflow and outflow process of the water tank will be repeated.

[0060] In the scheme, the water outlet pump is communicated with the water tank to discharge water from the water tank, the control unit drives the water outlet pump to stop working and drives the water inlet pump to start working based on the second liquid level height collected when the liquid level detection unit cannot touch water, and automatically controls the water in and out of the water tank, so that the liquid level height can be accurately maintained.

[0061] In an implementable scheme, the scale detection device further comprises a prompt unit 16 electrically connected with the control unit 11;

[0062] The prompt unit 16 is arranged outside the water tank;

[0063] The control unit 11 is further configured to drive the prompt unit 16 to send a prompt signal representing the scale condition.

[0064] In the scheme, the control unit drives the prompt unit to send a prompt signal representing the scale condition, so that the user can timely know the water quality condition of the water in the water tank, and the water safety of the user is ensured.

[0065] In an implementable scheme, the scale detection device further comprises a descaling structure 17 electrically connected with the control unit 11;

[0066] The descaling structure 17 is arranged outside the water tank, and the descaling structure 17 is communicated with the water tank;

[0067] The control unit 11 is further configured to drive the descaling structure 17 to perform a descaling operation.

[0068] Specifically, the descaling structure comprises a descaling box which can be installed on the right upper side of the hot tank and internally contains a descaling agent. The control unit receives the weight of the water tank at different times sent by the weight detection unit, judges whether the scale content exceeds, and when the value is greater than the set value, opens the descaling box to pour the descaling agent into the water tank for descaling.

[0069] The control unit drives the descaling box to open, and pours 0.2g, 0.3g and 0.4g of descaling agent in the case of light, medium and heavy, respectively, and stands for 3 minutes, so that the descaling agent can fully react with the scale. Subsequently, the water tank will be automatically replaced, and the total mass of the water tank collected by the weight detection unit is received again. In response to the fact that the total mass at this time increases by more than 0.2g, the descaling agent will be poured again, and the above process will be repeated until the total mass increases by less than or equal to 0.2g. At this time, it is considered that the amount of scale in the water tank will not affect the water quality and the health of the user.

[0070] In response to the total mass increase being less than 1 g, the control unit does not drive the descaling box to open. After the first descaling process is completed, the control unit analyzes the amounts of scale and descaling agent, and calculates the ratio of the two. In the subsequent descaling process, the amount of descaling agent poured into the descaling box is determined according to the amount of scale and the calculated ratio, until the total mass increase is less than 0.2 g. If the water tank has not been subjected to the descaling process within 24 hours, water replacement is performed.

[0071] The mass and the time length are only examples, and can be set or adjusted according to actual conditions.

[0072] In the scheme, the control unit can automatically and accurately drive the descaling structure to open or close, and accurately pour the descaling agent when the descaling structure is opened, so as to realize automatic cleaning and cleaning of the water tank, and ensure the reliability of water quality and the safety and health of users.

[0073] In an implementable scheme, the prompting unit 16 includes at least one of a prompting lamp, a display screen, and a voice broadcast unit.

[0074] Specifically, the prompting lamp can be an LED (Light Emitting Diode) lamp installed on the surface of the shell of the descaling box. The LED lamp displays different colors according to different increases in the amount of scale. The control unit can be installed between the LED lamp and the mass sensor, and is used to control the color of the LED lamp and the amount of descaling agent poured.

[0075] In response to the amount of scale being slight, the control unit drives the LED lamp to emit blue light; in response to the amount of scale being moderate, the control unit drives the LED lamp to emit yellow light; and in response to the amount of scale being slight, the control unit drives the LED lamp to emit red light. The LED lamp emits light of different colors, which can be used to prompt the amount of scale in the water tank.

[0076] In the scheme, by using different types of prompting units such as the prompting lamp, the display screen, and the voice broadcast unit, users can obtain the scale condition of the water in the water tank in a timely, convenient, and accurate manner.

[0077] In an implementable scheme, the scale detection device further includes a filtering unit 18.

[0078] The filtering unit 18 is arranged at the water inlet and / or the water outlet of the water tank. The filtering unit 18 includes a filter screen.

[0079] In the scheme, by arranging the filtering unit at the water inlet and / or the water outlet of the water tank, impurities in the water are filtered, so that when the weight detection unit weighs the water tank, it is ensured that the increase in the weight of the water tank is not caused by inconsistent water inflow, but is caused by the increase in the scale, thereby ensuring the accuracy of the weight of the collected water tank and the accuracy of the detected amount of scale.

[0080] In an implementation, the scale detection device further comprises a heating unit 19 electrically connected to the control unit 11.

[0081] The heating unit 19 is arranged inside the water tank.

[0082] The control unit 11 is further configured to drive the heating unit 19 to start or stop heating the water in the water tank.

[0083] Specifically, the heating unit can be a heating rod, which is arranged below the water tank to heat the water in the water tank. When the water is boiled, the heating rod stops heating the water in the water tank and starts to discharge water. The control unit can drive the heating rod to start heating the water in the water tank after the scale treatment is completed.

[0084] In this embodiment, by arranging the heating unit and driving the heating unit to start or stop heating the water in the water tank by the control unit, the user can obtain hot water in time and conveniently.

[0085] In an implementation, the water tank comprises an air outlet arranged at a top position of the water tank.

[0086] The air outlet is configured to discharge steam in the water tank.

[0087] In this embodiment, by arranging the air outlet at the top of the water tank, the problem that the steam in the water tank is excessive to cause the internal pressure of the water tank to be too high is prevented, and the safety is improved.

[0088] In an implementation, the water inlet pump 13 and / or the water outlet pump 15 is a direct current pump.

[0089] In this embodiment, the direct current pump is used as the water inlet pump and the water outlet pump. The working voltage of the direct current pump is low, so that the electric shock is reduced and the safety of the water tank is improved. The direct current pump also ensures the long service life, low noise and low energy consumption of the water tank.

[0090] The working principle of the scale detection device of the present embodiment will be described below in combination with specific examples.

[0091] As shown in FIG. 1, the scale detection device comprises a water tank 1, a water inlet pump 13, a water outlet pump 15, a control unit 11 and a scale detection unit 12. Figure 3As shown, it is a specific example diagram of the scale detection device of the embodiment. The scale detection device is applied to the water tank 21, and the scale detection device comprises a liquid level detection unit 12 arranged at the top of the water tank 21, a control unit 11 arranged outside the water tank 21, a water inlet pump 13, a weight detection unit 14, a water outlet pump 15, a prompt unit 16 and a descaling structure 17, a filter unit 18 arranged at the water inlet and water outlet of the water tank 21, a heating unit 19 arranged inside the water tank 21, and an air outlet hole 22 arranged at the top of the water tank 21. The water inlet pump 13 is communicated with the water tank 21 to deliver water to the water tank 21; the control unit 11 is used to drive the water inlet pump 13 to start working, and the liquid level detection unit 12 is used to send the actual liquid level height of the water collected in the water tank 21 to the control unit 11; the control unit 11 is also used to receive the first liquid level height collected when the liquid level detection unit 12 contacts water, and drive the water inlet pump 13 to stop working based on the first liquid level height; the weight detection unit 14 is used to collect the weight of the water tank 21 at different times and send it to the control unit 11 to obtain the scale condition; the water outlet pump 15 is communicated with the water tank 21 to drain water from the water tank 21; the control unit 11 is also used to receive the second liquid level height collected when the liquid level detection unit 12 cannot contact water, and drive the water outlet pump 15 to stop working based on the second liquid level height, and drive the water inlet pump 13 to start working; the control unit 11 is also used to drive the prompt unit 16 to send a prompt signal representing the scale condition; the descaling structure 17 is communicated with the water tank 21, and the control unit 11 is also used to drive the descaling structure 17 to perform a descaling operation; the filter unit 18 is used to filter impurities in water; the control unit 11 is also used to drive the heating unit 19 to start or stop heating water in the water tank 21; and the air outlet hole 22 is used to discharge steam in the water tank 21.

[0092] In the embodiment, the scale detection device drives the water inlet pump to start working through the control unit, the liquid level detection unit is used to send the actual liquid level height of the water collected in the water tank to the control unit, the control unit receives the first liquid level height collected when the liquid level detection unit contacts water, and drives the water inlet pump to stop working based on the first liquid level height, the weight detection unit collects the weight of the water tank at different times and sends it to the control unit to obtain the scale condition, which ensures the consistency of the water inlet amount in the water tank, ensures the accuracy of the detected scale amount, and improves the water safety of the user.

[0093] Embodiment 3

[0094] The embodiment provides a kind of intelligent household appliance, and the intelligent household appliance includes the water tank as described in embodiment 1 or embodiment 2.

[0095] In the embodiment, by setting the water tank including the scale detection device in the intelligent household appliance, the accuracy of the detected scale amount is guaranteed, the water safety of the user is improved, and the intelligent degree and product performance of the intelligent household appliance are improved.

[0096] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present disclosure, and these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A scale detection device, characterized by, The scale detection device is applied to a water tank, and comprises a control unit, a liquid level detection unit, a water inlet pump and a weight detection unit which are electrically connected with the control unit respectively; The liquid level detection unit is arranged inside the water tank, and the water inlet pump, the control unit and the weight detection unit are arranged outside the water tank, the water inlet pump is communicated with the water tank to deliver water to the water tank; The control unit is used to drive the water inlet pump to start working, and the liquid level detection unit is used to send the actual liquid level height of water in the water tank collected to the control unit; The control unit is also used to receive a first liquid level height and drive the water inlet pump to stop working based on the first liquid level height; The first liquid level height is the actual liquid level height collected when the liquid level detection unit contacts water; The weight detection unit is used to collect the weight of the water tank at different time and send it to the control unit to obtain the scale condition.

2. The scale detection apparatus of claim 1, wherein The scale detection device further comprises a water outlet pump electrically connected with the control unit; The water outlet pump is arranged outside the water tank, and the water outlet pump is communicated with the water tank to drain water from the water tank; The control unit is also used to receive a second liquid level height and drive the water outlet pump to stop working and drive the water inlet pump to start working based on the second liquid level height; The second liquid level height is the actual liquid level height collected when the liquid level detection unit cannot contact water.

3. The scale detection apparatus of claim 1, wherein The scale detection device further comprises a prompt unit electrically connected with the control unit; The prompt unit is arranged outside the water tank; The control unit is also used to drive the prompt unit to send a prompt signal representing the scale condition.

4. The scale detection apparatus of claim 3, wherein The prompt unit comprises at least one of a prompt lamp, a display screen and a voice broadcast unit.

5. The scale detection device of any one of claims 1-4, wherein, The scale detection device further comprises a descaling structure electrically connected with the control unit; The descaling structure is arranged outside the water tank, and the descaling structure is communicated with the water tank; The control unit is also used to drive the descaling structure to perform a descaling operation.

6. The scale detection apparatus of any one of claims 1-4, wherein, The scale detection device further comprises a filter unit; The filter unit is arranged at a water inlet and / or a water outlet of the water tank.

7. The scale detection apparatus of any one of claims 1-4, wherein, The scale detection device further comprises a heating unit electrically connected with the control unit; The heating unit is arranged inside the water tank; The control unit is also used to drive the heating unit to start or stop heating water in the water tank.

8. The scale detection apparatus of claim 7, wherein The water tank comprises an air outlet arranged at a top position of the water tank; The air outlet is used to discharge steam in the water tank.

9. The scale detection apparatus of claim 2, wherein, The water inlet pump and / or the water outlet pump is a direct current pump.

10. A smart home appliance, characterized by, The intelligent household appliance comprises the water tank according to any one of claims 1-9.

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