Water shortage detection method and water shortage detection module of cleaning equipment and cleaning equipment

Abstract

The embodiment of the invention provides a water shortage detection method of cleaning equipment, a water shortage detection module and the cleaning equipment, and the water shortage detection method of the cleaning equipment comprises the steps that the water shortage detection module is powered on, and the target current value flowing through electrolysis electrodes in the water shortage detection module is detected, the two electrolysis electrodes are used for electrolyzing water to generate electrolyte and are arranged at an interval, and the extending direction of the interval is parallel to the gravity direction or forms a set included angle with the gravity direction; and determining whether the water storage tank lacks water according to the target current value. Thus, water can quickly slide off from the space between the two electrolysis electrodes, water remaining on comb teeth of the two electrolysis electrodes is greatly reduced, the difference of current values flowing through the electrolysis electrodes in the water shortage detection module is large when water shortage is avoided and water shortage occurs, the water shortage detection module is used for achieving the water electrolysis function and the water shortage detection function at the same time, and the water shortage detection accuracy is improved.

Description

Technical Field

[0001] The embodiments of this specification relate to the field of smart home technology, and more particularly to a method for detecting water shortage of a cleaning device. This specification also relates to a water shortage detection module for a cleaning device, and a cleaning device. Background Art

[0002] With the rapid development of computer technology, Internet technology and artificial intelligence technology, various smart home devices have gradually been applied to all aspects of work and life. After years of development, cleaning equipment has shown a trend of automation, functionality, diversification and specialization, and the cleaning scenarios of cleaning equipment have also increased.

[0003] In existing cleaning products, it is necessary to detect whether the water tank is short of water. Generally, an infrared liquid level switch sensor is added to the water pipe. The core principle is that the refractive index and critical angle of a certain wavelength of light will change on different medium surfaces, which will cause the intensity of the reflected light to be significantly weakened, and then determine whether there is a lack of water. However, current technology has high requirements for water quality. For example, turbid liquid sensors will have the risk of false alarms; in addition, when there are other stains on the sensor surface, it will also cause the sensor to falsely alarm, resulting in a low accuracy rate of water shortage detection. Summary of the invention

[0004] In view of this, the embodiments of this specification provide a method for detecting water shortage of a cleaning device. One or more embodiments of this specification also relate to a control unit of a cleaning device, a water shortage detection module of a cleaning device, and a cleaning device to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of this specification, a water shortage detection method for a cleaning device is provided, which is applied to a control unit of the cleaning device, wherein a water shortage detection module is provided in a water storage tank of the cleaning device, and the method comprises:

[0006] Powering on the water shortage detection module to detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module comprises at least two electrolysis electrodes, the two electrolysis electrodes are used to electrolyze water to generate electrolyte, the two electrolysis electrodes are spaced apart, and an extending direction of the space is parallel to a gravity direction or at a set angle;

[0007] Whether the water tank is short of water is determined according to the target current value.

[0008] According to a second aspect of an embodiment of this specification, a control unit of a cleaning device is provided, wherein a water shortage detection module is provided in a water storage tank of the cleaning device, and the control unit comprises:

[0009] a detection module configured to energize the water shortage detection module and detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module comprises at least two electrolysis electrodes, the two electrolysis electrodes are used to electrolyze water to produce electrolyte, the two electrolysis electrodes are spaced apart, and an extending direction of the space is parallel to a gravity direction or at a set angle;

[0010] The determination module is configured to determine whether the water tank is short of water according to the target current value.

[0011] According to a third aspect of the embodiments of this specification, a water shortage detection module for a cleaning device is provided, the water shortage detection module comprising at least two electrolysis electrodes, the two electrolysis electrodes are arranged at an interval, and the extension direction of the interval is parallel to the gravity direction or at a set angle;

[0012] The water shortage detection module is arranged in the water storage tank of the cleaning equipment, the two electrolysis electrodes are used to electrolyze water to produce electrolyte, and the target current value flowing through the electrolysis electrodes is used to detect whether the water storage tank of the cleaning equipment is short of water.

[0013] According to the fourth aspect of the embodiments of this specification, a cleaning device is provided, which includes a water tank and a control unit, wherein the water tank is provided with the above-mentioned water shortage detection module; the control unit is used to execute the steps of the above-mentioned water shortage detection method for the cleaning device.

[0014] An embodiment of the present specification provides a method for detecting water shortage of a cleaning device, wherein a water shortage detection module is provided in a water tank of the cleaning device, and a control unit can control the power supply to the water shortage detection module to detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module includes at least two electrolysis electrodes, and the two electrolysis electrodes are used to electrolyze water to produce an electrolyte, and the two electrolysis electrodes are arranged at intervals, and an extension direction of the interval is parallel to a gravity direction or at a set angle; whether the water tank is short of water is determined according to the target current value.

[0015] The embodiment of the present specification realizes that a water shortage detection module is provided in the water storage tank of the cleaning equipment, and the water shortage detection module includes at least two electrolysis electrodes, which are arranged at an interval, and the extension direction of the interval is parallel to the gravity direction or at a set angle. The capillary action and gravity of water are used to allow water to quickly slide down from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current values ​​flowing through the electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, thereby using the water shortage detection module to simultaneously realize the functions of water electrolysis and water shortage detection, replacing the original infrared liquid level switch sensor, reducing costs, eliminating the influence of turbid liquid or stain adhesion on water shortage detection, and improving the accuracy of water shortage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a flow chart of a method for detecting water shortage of a cleaning device provided in an embodiment of this specification;

[0017] Figure 2 It is a process flow chart of a water shortage detection method for a cleaning device applied to a floor scrubber provided in an embodiment of this specification;

[0018] Figure 3 It is a structural schematic diagram of a control unit of a cleaning device provided in an embodiment of this specification;

[0019] Figure 4 It is a structural schematic diagram of a water shortage detection module of a first cleaning device provided in an embodiment of this specification;

[0020] Figure 5 This is a schematic diagram of the arrangement of a water shortage detection module in a water storage tank provided in an embodiment of this specification;

[0021] Figure 6 It is a structural schematic diagram of a water shortage detection module of a second cleaning device provided in an embodiment of this specification;

[0022] Figure 7 It is a structural schematic diagram of a water shortage detection module of a third cleaning device provided in an embodiment of this specification;

[0023] Figure 8 It is a structural schematic diagram of a water shortage detection module of a fourth cleaning device provided in an embodiment of this specification;

[0024] Fig. 9 It is a structural schematic diagram of an electrolytic electrode provided in an embodiment of this specification;

[0025] Fig.10 It is a schematic diagram of the twisted structure of the first electrolytic electrode provided in an embodiment of this specification;

[0026] Fig.11 It is a schematic diagram of the twisted structure of the second electrolytic electrode provided in an embodiment of this specification;

[0027] Fig.12 It is a schematic diagram of the twisted structure of the third electrolytic electrode provided in an embodiment of this specification;

[0028] Fig.13 is a structural diagram of a fifth water shortage detection module provided in an embodiment of this specification;

[0029] Fig.14 is a structural diagram of a sixth water shortage detection module provided in an embodiment of this specification;

[0030] Fig.15It is a structural diagram of a seventh water shortage detection module provided in an embodiment of this specification. DETAILED DESCRIPTION

[0031] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0032] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0033] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0034] It should be noted that in existing cleaning products such as floor scrubbers, it is necessary to detect whether the clean water bucket is lacking water. Generally, an infrared liquid level switch sensor is added to the water pipeline. The core principle is that the refractive index and critical angle of a certain wavelength of light on different medium surfaces (acrylic -> liquid / acrylic -> air) will change, resulting in a significant decrease in the intensity of the reflected light, thereby determining whether there is a lack of water. However, this technology has requirements for the water quality. For example, if there is turbid liquid, the sensor will have the risk of false alarms; in addition, when there are other stains adhering to the sensor surface, it will also cause the sensor to falsely alarm.

[0035] Most cleaning equipment is equipped with a water electrolysis module, that is, the titanium anode base electrolysis electrode is energized in the water to activate the chlorine in the water, prepare hypochlorous acid, and achieve functions such as sterilization and disinfection. By collecting the current of the water electrolysis module, it is also possible to determine whether there is a lack of water in the water storage tank. However, in the design structure of the existing water electrolysis module, the electrolysis electrodes in the water electrolysis module are placed horizontally, and the surface is a porous structure. The two electrolysis electrodes need to be placed very close (the smaller the gap, the stronger the ability to prepare hypochlorous acid). As a result, after the water is discharged, due to the adhesion of water, there is still a lot of water adhering between the electrolysis electrodes, that is, water will remain on the electrolysis electrodes, which leads to a small difference in the electrolysis current after the water is discharged, and it cannot be used to determine whether the water storage tank is short of water. Water shortage detection is through another photoelectric sensor, which is set in the water outlet pipe, that is, the water electrolysis module and water shortage detection are not currently connected.

[0036] If there are no / few water droplets adhering between the two electrolysis electrodes, the water electrolysis module can be used to determine whether there is a water shortage, thereby eliminating the influence of turbid liquid or stain adhesion on water shortage detection. In order to solve the problem that water droplets cannot be quickly removed from between the electrolysis electrodes due to the adhesion of water in the water electrolysis module, the water electrolysis module is used as a water shortage detection module in the embodiment of the present specification. The water shortage detection module includes at least two electrolysis electrodes, which are used to electrolyze water to produce electrolyte. The two electrolysis electrodes are arranged at intervals, and the extension direction of the interval is parallel to the gravity direction or at a set angle. The capillary action and gravity of water are used to enable water droplets to quickly slide from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current value flowing through the water shortage detection module when there is no water shortage and when there is water shortage is relatively different, so that the water shortage detection module is used to realize the water electrolysis and water shortage detection functions at the same time, replace the original infrared liquid level switch sensor, reduce costs, eliminate the influence of turbid liquid or stain adhesion on water shortage detection, and improve the accuracy of water shortage detection.

[0037] In this specification, a method for detecting water shortage of a cleaning device is provided. This specification also relates to a control unit of a cleaning device, a water shortage detection module of a cleaning device, and a cleaning device, which are described in detail one by one in the following embodiments.

[0038] See also Figure 1 , Figure 1 A flow chart of a method for detecting water shortage of a cleaning device according to an embodiment of the present specification is shown, which is applied to a control unit of the cleaning device, and a water shortage detection module is provided in a water storage tank of the cleaning device, and specifically includes the following steps 102-104.

[0039] Step 102: Power on the water shortage detection module to detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module includes at least two electrolysis electrodes, the two electrolysis electrodes are used to electrolyze water to produce electrolyte, the two electrolysis electrodes are spaced apart, and an extension direction of the space is parallel to a gravity direction or at a set angle.

[0040] It should be noted that the cleaning device includes a water storage tank and a control unit. A water shortage detection module is provided in the water storage tank. The water shortage detection module can be a water electrolysis module. The water shortage detection module includes at least two electrolysis electrodes. The two electrolysis electrodes can electrolyze water to produce an electrolyte, such as hypochlorous acid. Among them, the positive electrolysis electrode can be a titanium-based electrolysis electrode.

[0041] In actual applications, when the cleaning equipment is in an upright state, the body of the cleaning equipment is tilted during cleaning operation. A water shortage detection module is provided in the water tank of the cleaning equipment. The water shortage detection module includes two electrolysis electrodes arranged at intervals, and the extension direction of the intervals is parallel to the direction of gravity or at a set angle, that is, the two electrolysis electrodes are arranged in a vertical direction, so that when the cleaning equipment is in operation, water droplets can slide down from between the two electrolysis electrodes under the action of gravity.

[0042] In addition, since the water shortage detection module can integrate the water electrolysis function and the water shortage detection function, the system of the cleaning equipment is powered by a battery when in working condition and has requirements on the power consumption of components. The water shortage detection module can complete the water electrolysis task and enter the cleaning state, and then the water shortage detection module can be powered on to determine whether the water tank is short of water by detecting the current value flowing through the water shortage detection module, thereby utilizing the water shortage detection module to detect water shortage in the water tank.

[0043] In actual applications, the water shortage detection module can be powered on continuously to perform the water electrolysis task and prepare the electrolyte. After the water electrolysis task is completed, that is, when the water shortage detection module is not performing the water electrolysis task, the water shortage detection module can be powered on again to detect the target current value flowing through the water shortage detection module. Subsequently, whether the water tank is short of water can be determined based on the detected target current value.

[0044] In an optional implementation of this embodiment, the electrolysis electrode includes an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end, and the electrolysis electrode connection ends of the two electrolysis electrodes are both located above the electrolysis electrode parts.

[0045] In practical applications, the electrolysis electrode connection end is used to connect to a power source, and a plurality of electrolysis electrode components extending from the electrolysis electrode connection end are arranged at intervals, and the intervals between the plurality of electrolysis electrode components can electrolyze water to produce electrolyte.

[0046] It should be noted that the electrolysis electrode connection ends of the two electrolysis electrodes can be arranged above the electrolysis electrode member so that the bottom end of the electrolysis electrode member can be as close to the bottom of the water storage barrel as possible, so that the water shortage detection result is closer to the actual water shortage state.

[0047] In an optional implementation of this embodiment, the two electrolysis electrodes are in the shape of comb teeth and are installed opposite to each other, the two electrolysis electrodes are non-contacting, and the distance between the comb teeth is consistent.

[0048] In actual applications, due to the capillary effect of water, the height of water adhering between the comb teeth is inversely proportional to the comb teeth spacing of the two electrolytic electrodes, that is, the smaller the comb teeth spacing, the higher the adhesion height; and in order to ensure that the water shortage detection module has a strong electrolysis function, based on cost considerations, it is necessary to make the comb teeth spacing of the two electrolytic electrodes as small as possible, which will lead to an increase in the amount of water adhering. If the water shortage detection module is placed horizontally, the height of the adhering water will be much higher than the height of the comb teeth. Even if the water in the water storage tank is completely used up, the water between the two electrolytic electrodes cannot be discharged.

[0049] Therefore, in the embodiment of the present specification, when the distance between the comb teeth remains unchanged, the adhesion height of the water remains unchanged. By placing the water shortage detection module vertically in the water storage tank, the two electrolysis electrodes are in a vertical state during use, that is, the extension direction of the comb teeth interval between the two electrolysis electrodes is parallel to the gravity direction or at a set angle, or parallel to the rising direction of the electrolysis bubble or at a set angle, so that the water can fall. Compared with the electrolysis electrodes placed horizontally, the amount of water adhering between the two electrolysis electrodes will be greatly reduced, so that compared with the state where the two electrolysis electrodes are soaked in water, the conduction resistance between the two electrolysis electrodes is greatly increased, and then the current passing through the electrolysis electrodes is greatly reduced. In this way, by monitoring the current passing through the electrolysis electrodes, it is possible to use the water shortage detection module to detect whether there is water shortage in the water storage tank, so that the water shortage detection module has both water electrolysis function and water shortage detection function.

[0050] It should be noted that, in addition to the aforementioned front-to-back installation of the two electrolysis electrodes, that is, in addition to the electrolysis electrode connection ends of the two electrolysis electrodes being located above the electrolysis electrode member, the two electrolysis electrodes can also be installed top-to-bottom, that is, the electrolysis electrode connection end of one electrolysis electrode is located above the electrolysis electrode member, and the electrolysis electrode connection end of the other electrolysis electrode is located below the electrolysis electrode member. In other words, the two electrolysis electrodes included in the water shortage detection module can be divided into a first electrolysis electrode and a second electrolysis electrode, the first electrolysis electrode is located above, the second electrolysis electrode is located below, and the comb teeth of the first electrolysis electrode and the second electrolysis electrode are installed top-to-bottom.

[0051] In addition, in addition to the above-mentioned two electrolysis electrodes being comb-shaped and installed in pairs, the two electrolysis electrodes can also be other structures, such as the two electrolysis electrodes are constructed in a spiral winding shape; the two electrolysis electrodes can also be a sheet or arc structure arranged at intervals, and the sheet or arc structure is provided with a plurality of small holes, that is, a porous sheet or arc structure, which is used to electrolyze water to produce electrolyte, etc.

[0052] In the embodiment of the present specification, a water shortage detection module is arranged in the water storage tank of the cleaning equipment, and the water shortage detection module includes two electrolysis electrodes, the two electrolysis electrodes are comb-tooth shaped and installed opposite to each other, the two electrolysis electrodes are non-contacting, the distance between the comb teeth is consistent, and the two electrolysis electrodes are in a vertical state during use. By vertically arranging the two electrolysis electrodes, water droplets can quickly slide down from between the comb teeth of the two electrolysis electrodes, greatly reducing the residual water on the comb teeth of the two electrolysis electrodes, so that the current value flowing through the electrolysis electrodes of the water shortage detection module when there is no water shortage and when there is water shortage is quite different, so that the water shortage detection module is used to realize water electrolysis and water shortage detection, replace the original infrared liquid level switch sensor, reduce costs, eliminate the influence of turbid liquid or stain adhesion on water shortage detection, and improve the accuracy of water shortage detection.

[0053] In an optional implementation of this embodiment, a periodic detection method can be used to intermittently power on to detect the lack of water in the water tank through the current value flowing through the water shortage detection module, that is, powering on the water shortage detection module, including:

[0054] At every set period, the water shortage detection module is powered on for a set time.

[0055] Among them, the set cycle is a pre-set detection cycle for whether the water tank is short of water, such as 5 minutes, 10 minutes, half an hour, etc.; the set duration is the duration of powering on the water shortage detection module in each cycle to detect the current value, such as 10s, 30s, etc.

[0056] It should be noted that a periodic detection method can be used, where the water shortage detection module is powered on for t1 time, the target current value is collected, and then the power supply of the water shortage detection module is disconnected for t2 time, and then the power supply is connected for t1 time, and the target current value is collected, and the cycle is repeated. That is to say, every t2 time, the power supply is connected for t1 time, and the target current value is collected, so as to make a subsequent judgment on whether there is water shortage. The periodic detection method can reduce the power consumption required for water shortage detection using the water shortage detection module.

[0057] Step 104: Determine whether the water tank is short of water according to the target current value.

[0058] It should be noted that when the water tank is not short of water, the conduction resistance between the two electrolysis electrodes is small, and the current passing through the electrolysis electrodes is large; when the water tank is short of water, since the two electrolysis electrodes of the water shortage detection module are placed vertically, water can fall, which greatly reduces the amount of water adhering between the two electrolysis electrodes. Therefore, when the water tank is short of water, compared with the state where the space between the two electrolysis electrodes is full of water, the conduction resistance between the two electrolysis electrodes is greatly increased, thereby greatly reducing the current passing through the electrolysis electrodes. In this way, by monitoring the target current value passing through the electrolysis electrodes, the water shortage detection module can be used to detect the lack of water in the water tank.

[0059] In practical applications, when it is determined that the water tank is short of water, a water shortage signal can be fed back so that the user can add water in time.

[0060] In an optional implementation of this embodiment, whether the water tank is short of water can be determined based on the current attenuation ratio obtained by the test, that is, whether the water tank is short of water can be determined based on the target current value, including:

[0061] Collecting the full water current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water;

[0062] Determining whether the target current value and the full water current value satisfy the current attenuation ratio;

[0063] If so, it is determined that the water tank is short of water.

[0064] In actual implementation, the full water current value of the electrolysis electrode in the water shortage detection module when the water tank is full of water can be collected. The full water current value can be used as a reference value to determine whether the currently detected target current value and the full water current value meet the current attenuation ratio obtained in advance. If so, it means that the water tank is currently short of water.

[0065] In specific implementation, the full water current value can be divided by the target current value to obtain the target attenuation ratio. If the target attenuation ratio is greater than or equal to the current attenuation ratio, or is less than the set value of the current attenuation ratio, it means that the attenuation ratio between the target current value and the full water current value is close to the current attenuation ratio obtained in advance. At this time, it can be determined that the water tank is currently short of water.

[0066] In another possible implementation, the detected full water current value may be divided by the current attenuation ratio obtained in advance by testing to obtain a corresponding reference current value, and then it is determined whether the currently detected target current value is less than the reference current value. If so, it is determined that the current water tank is short of water.

[0067] It should be noted that, based on the current attenuation ratio obtained in advance, and with reference to the full water current value of the electrolysis electrode in the water shortage detection module when the water tank is full of water, it is possible to determine whether there is a water shortage in the current water tank, thereby improving the accuracy of water shortage detection.

[0068] In an optional implementation of this embodiment, the current value of the water tank when there is no water in the water tank is greatly reduced compared with the current value of the water tank when there is full water. Therefore, the attenuation amplitude of the current value of the water tank when there is no water in the water tank compared with the current value of the water tank when there is full water can be tested in advance, so as to detect whether the water tank is short of water based on the attenuation amplitude. That is, before determining whether the target current value and the full water current value satisfy the current attenuation ratio, the method further includes:

[0069] For water with different impurity contents, testing a first test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water, and testing a second test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is short of water;

[0070] A current attenuation ratio from a full water state to a water shortage state is determined according to the first test current value and the second test current value.

[0071] In practical applications, water with different impurity contents can be pre-filled into the water tank, the first test current value of the electrolytic electrode in the water shortage detection module in the full water state of the water tank can be tested, and then the water in the water tank can be drained, and the second test current value of the electrolytic electrode in the water shortage detection module in the water shortage state of the water tank can be tested, and the current attenuation ratio from the full water state to the water shortage state can be determined according to the first test current value and the second test current value. The current attenuation ratio refers to the attenuation multiple obtained by dividing the current value tested in the full water state by the current value tested in the water shortage state.

[0072] In specific implementation, the corresponding current attenuation ratio can be determined for water with various impurity contents, and then the final current attenuation ratio from the full water state to the water shortage state can be obtained by combining various current attenuation ratios, so as to subsequently determine whether there is a water shortage in the water tank.

[0073] For example, the two electrolytic electrodes of the water shortage detection module are inserted and installed vertically, connected to a 12V constant voltage power supply, and the test current values ​​flowing through the two electrolytic electrodes of the water shortage detection module in the full water and water shortage states are tested and recorded in water with different TDS (Total dissolved solids) values, as shown in the following Table 1. It can be seen from the data shown in the following Table 1 that in this test state, compared with the full water state, the current value in the water shortage state has a decay of nearly 10 times, that is, at this time, it is determined that the current decay ratio from the full water state to the water shortage state is 10 times, that is, the current value tested in the water shortage state should be 1 / 10 of the current value tested in the full water state.

[0074] Table 1 Test current value record table

[0075]

[0076] It should be noted that, for water with different impurity contents, the test current values ​​in the water tank under full water state and water-deficient state can be tested respectively, so as to determine the current attenuation ratio from the full water state to the water-deficient state, so as to facilitate the subsequent reference to the current value and current attenuation ratio in the full water state, determine whether there is a water shortage in the current water tank, and use the water shortage detection module to realize water shortage detection, thereby improving the accuracy of water shortage detection.

[0077] In an optional implementation of this embodiment, an adsorption component may be further provided under the two electrolysis electrodes, the adsorption component being in contact with the two electrolysis electrodes, and the residual water between the two electrolysis electrodes is further extracted through the adsorption component. At this time, determining whether the water storage tank is short of water according to the target current value includes:

[0078] Determining whether the target current value is less than a current threshold;

[0079] If so, it is determined that the water tank is short of water.

[0080] In practical applications, when it is necessary to arrange adsorption components under the two electrolytic electrodes, the two electrolytic electrodes are installed front to back, that is, the electrolytic electrode connection ends of the two electrolytic electrodes are located above the electrolytic electrode components.

[0081] It should be noted that an adsorption component can be provided under the two electrolysis electrodes to ensure that the water between the two electrolysis electrodes can be fully discharged. At this time, if there is a lack of water in the water storage tank, there is less water remaining between the two electrolysis electrodes. When the water is fully discharged, the current obtained by detection becomes very low. Therefore, the detection of the current reference value under the full water state can be omitted at this time. Whether there is a lack of water in the water storage tank can be determined directly by judging whether the target current value is less than the current threshold. The fixed threshold method is used for water shortage detection, and there is no need to refer to the current under the full water state, which simplifies the water shortage detection process and improves the detection efficiency.

[0082] In an optional implementation of the present embodiment, the adsorption component is an insulating structure constructed of an insulating material, and the adsorption component is composed of at least two parts; when the two electrolysis electrodes are comb-tooth-shaped and installed in a plug-in manner, the spacing between the at least two parts is smaller than the comb-tooth spacing of the two electrolysis electrodes.

[0083] The insulating material may be plastic, rubber, etc.

[0084] In a specific implementation, the adsorption component is composed of at least two parts, which can be a comb-tooth structure or a parallel plate structure. When the adsorption component is a comb-tooth structure, the comb-tooth spacing of the adsorption component is smaller than the comb-tooth spacing of the two electrolysis electrodes; when the adsorption component is a parallel plate structure, the parallel plate spacing of the adsorption component is smaller than the comb-tooth spacing of the two electrolysis electrodes.

[0085] In practical applications, when the two electrolytic electrodes are in the shape of comb teeth and installed opposite to each other, the two electrolytic electrodes can be installed opposite to each other front and back, and an adsorption component with a smaller spacing is closely arranged below the two electrolytic electrodes. The adsorption component can be a comb tooth structure or a parallel plate structure. When the water level is lower than the lowest end of the two electrolytic electrodes, the water originally attached between the electrolytic electrode sheets will be absorbed by the adsorption component below under the capillary action, so as to achieve the effect of fully draining the water between the electrolytic electrodes, thereby improving the stability of the water shortage detection function.

[0086] In another possible implementation, the adsorption component may also be a water-absorbing structure made of a water-absorbing material, and the size of the adsorption component is greater than or equal to the bottom size of the two electrolytic electrodes.

[0087] Specifically, the water-absorbing material can be cotton wool, silica gel, sponge, etc.

[0088] In practical applications, the adsorption component can be a block-shaped water-absorbing structure made of a water-absorbing material. The adsorption component is arranged close to the bottom of the two electrolytic electrodes, and its size is greater than or equal to the bottom size of the two electrolytic electrodes, so as to better absorb the residual water between the two electrolytic electrodes, so as to achieve the effect of fully draining the water between the electrolytic electrodes, thereby improving the stability of the water shortage detection function.

[0089] In an optional implementation of this embodiment, the current threshold may be pre-determined, that is, before determining whether the target current value is less than the current threshold, the method further includes:

[0090] For water with different impurity contents, testing the third test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is in a water shortage state;

[0091] The current threshold is configured according to the third test current value.

[0092] In practical applications, water in the water tank can be drained in advance for water with different impurity contents, the third test current value of the electrolysis electrode in the water shortage detection module when the water tank is short of water can be tested, and the current threshold can be configured according to the third test current value.

[0093] In specific implementation, for water with different impurity contents, the third test current value of the electrolysis electrode in the water shortage detection module when the water tank is short of water can be determined, and then the current threshold can be obtained by averaging the third test current values, or the current threshold can be set slightly larger than the average value.

[0094] For example, the following Table 2 shows the test data of adding an adsorption component. It can be seen that in high TDS water, when the water is fully discharged, the current becomes very low. Therefore, the detection of the current reference value in the full water state can be omitted. Using a fixed threshold method can meet the application in a wide TDS water quality range.

[0095] Table 2 Test data of adding adsorption components

[0096] TDS(ppm) 11 1000 Full water current (mA) 28 1300 Water shortage current (mA) 0 6

[0097] It should be noted that, for water with different impurity contents, the third test current value of the electrolysis electrode in the water shortage detection module when the water tank is short of water can be tested respectively, so as to configure a fixed current threshold. Subsequently, it is only necessary to monitor whether the current currently flowing through the electrolysis electrode of the water shortage detection module is less than the current threshold to monitor whether there is water shortage in the water tank. The fixed threshold method is used for water shortage detection, and there is no need to refer to the current in the full water state, which simplifies the water shortage detection process and improves the detection efficiency.

[0098] In addition, if the electrolysis module needs to be placed horizontally due to limitations such as the structural space of the water storage tank, an adsorption component, such as a comb structure or a parallel plate structure made of insulating material, can be set closely below the two electrolysis electrodes in the water shortage detection module, and the distance between the two parts of the adsorption component is smaller than the distance between the two electrolysis electrodes. When the water level in the water storage tank is lower than the two electrolysis electrode sheets, the adsorption component below also has a capillary effect. Under the combined action of capillary phenomenon and gravity, most of the water originally remaining between the two electrolysis electrodes will be adsorbed, thereby realizing water shortage detection using the horizontally placed water shortage detection module.

[0099] The embodiment of the present specification provides a water shortage detection method for a cleaning device. A water shortage detection module is arranged in a water storage tank of the cleaning device. The water shortage detection module includes at least two electrolysis electrodes. The two electrolysis electrodes are arranged at an interval. The extension direction of the interval is parallel to the gravity direction or at a set angle, so that water droplets can quickly slide down from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current values ​​flowing through the electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, so that the water shortage detection module is used to realize the functions of water electrolysis and water shortage detection at the same time, replace the original infrared liquid level switch sensor, reduce costs, eliminate the influence of turbid liquid or stain adhesion on water shortage detection, and improve the accuracy of water shortage detection.

[0100] The following combination Figure 2 Taking the application of the water shortage detection method for cleaning equipment provided in this specification in a floor scrubber as an example, the water shortage detection method for cleaning equipment is further described. Figure 2A process flow chart of a water shortage detection method for a cleaning device applied to a floor scrubber provided in an embodiment of the present specification is shown. The method is applied to a control unit of the floor scrubber. A water shortage detection module is provided in the clean water tank of the floor scrubber. The water shortage detection module includes two electrolysis electrodes. The two electrolysis electrodes are used to electrolyze water to produce electrolyte. The two electrolysis electrodes are arranged at intervals, and the extension direction of the interval is parallel to the gravity direction or at a set angle. The method specifically includes the following steps.

[0101] Step 202: Continuously energize the water shortage detection module to prepare hypochlorous acid.

[0102] When the production of hypochlorous acid is completed, the following step 204 is performed.

[0103] Step 204: Power on the water shortage detection module for time t1 to collect the target current value.

[0104] Step 206: Determine whether the target current value is lower than the detection threshold, if not, execute the following step 208, if yes, execute the following step 210.

[0105] Among them, when the extension direction of the interval between the two electrolysis electrodes of the water shortage detection module is parallel to the gravity direction or forms a set angle, the detection threshold can be determined based on the pre-determined current attenuation ratio from the full water state to the water shortage state; when the extension direction of the interval between the water shortage detection module is parallel to the gravity direction or forms a set angle, and an adsorption component is provided under the two electrolysis electrodes, the detection threshold is a fixed threshold configured based on the test current value of the electrolysis electrode in the water shortage detection module when the water tank is in a water shortage state.

[0106] Step 208: disconnect the power supply of the water shortage detection module for time t2, and return to execute the above step 204.

[0107] Step 210: Determine that the water tank is short of water and feed back a water shortage signal.

[0108] The embodiment of the present specification provides a water shortage detection method for a cleaning device. A water shortage detection module is arranged in a water storage tank of the cleaning device. The water shortage detection module includes at least two electrolysis electrodes. The two electrolysis electrodes are arranged at an interval. The extension direction of the interval is parallel to the gravity direction or at a set angle, so that water droplets can quickly slide down from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current values ​​flowing through the electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, so that the water shortage detection module is used to realize the functions of water electrolysis and water shortage detection at the same time, replace the original infrared liquid level switch sensor, reduce costs, eliminate the influence of turbid liquid or stain adhesion on water shortage detection, and improve the accuracy of water shortage detection.

[0109] Corresponding to the above method embodiment, this specification also provides a control unit embodiment of a cleaning device, Figure 3 The schematic diagram of the structure of a control unit of a cleaning device provided in an embodiment of the present specification is shown. A water shortage detection module is provided in the water storage tank of the cleaning device. The water shortage detection module includes two electrolysis electrodes. The two electrolysis electrodes are used to electrolyze water to produce electrolyte. The two electrolysis electrodes are arranged at intervals, and the extending direction of the interval is parallel to the gravity direction or at a set angle, such as Figure 3 As shown, the control unit includes:

[0110] The detection module 302 is configured to energize the water shortage detection module and detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module includes two electrolysis electrodes, the two electrolysis electrodes are used to electrolyze water to generate electrolyte, the two electrolysis electrodes are spaced apart, and an extending direction of the space is parallel to a gravity direction or at a set angle;

[0111] The determination module 304 is configured to determine whether the water tank is short of water according to the target current value.

[0112] In an optional implementation of this embodiment, the two electrolysis electrodes are in the shape of comb teeth and are installed opposite to each other. The two electrolysis electrodes are non-contacting and the distance between the comb teeth is consistent.

[0113] In an optional implementation of this embodiment, the determination module 304 is further configured to:

[0114] Collecting the full water current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water;

[0115] Determining whether the target current value and the full water current value satisfy the current attenuation ratio;

[0116] If so, it is determined whether the water tank is short of water.

[0117] In an optional implementation of this embodiment, the control unit further includes a first testing module configured to:

[0118] For water with different impurity contents, testing a first test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water, and testing a second test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is short of water;

[0119] A current attenuation ratio from a full water state to a water shortage state is determined according to the first test current value and the second test current value.

[0120] In an optional implementation of this embodiment, an adsorption component is disposed below the two electrolysis electrodes, and the adsorption component is in contact with the two electrolysis electrodes; the determination module 304 is further configured as follows:

[0121] Determining whether the target current value is less than a current threshold;

[0122] If so, it is determined whether the water tank is short of water.

[0123] In an optional implementation of this embodiment, the control unit further includes a second test module configured to:

[0124] For water with different impurity contents, testing the third test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is in a water shortage state;

[0125] The current threshold is configured according to the third test current value.

[0126] In an optional implementation of the present embodiment, the adsorption component is an insulating structure constructed of an insulating material, and the adsorption component is composed of at least two parts; when the two electrolysis electrodes are comb-tooth-shaped and installed in a plug-in manner, the spacing between the at least two parts is smaller than the comb-tooth spacing of the two electrolysis electrodes.

[0127] In an optional implementation of this embodiment, the detection module 302 is further configured as follows:

[0128] At every set period, the water shortage detection module is powered on for a set time.

[0129] In an optional implementation of this embodiment, the electrolysis electrode includes an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end, and the electrolysis electrode connection ends of the two electrolysis electrodes are both located above the electrolysis electrode parts.

[0130] The embodiment of the present specification provides a control unit of a cleaning device, wherein a water shortage detection module is arranged in a water storage tank of the cleaning device, and the water shortage detection module comprises at least two electrolysis electrodes, which are arranged at an interval, and the extension direction of the interval is parallel to the gravity direction or at a set angle, so that water droplets can quickly slide down from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current values ​​flowing through the electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, thereby utilizing the water shortage detection module to realize the functions of water electrolysis and water shortage detection at the same time, replacing the original infrared liquid level switch sensor, reducing costs, eliminating the influence of turbid liquid or stain adhesion on water shortage detection, and improving the accuracy of water shortage detection.

[0131] The above is a schematic scheme of a control unit of a cleaning device of this embodiment. It should be noted that the technical scheme of the control unit of the cleaning device and the technical scheme of the water shortage detection method of the cleaning device described above belong to the same concept, and the details of the technical scheme of the control unit of the cleaning device that are not described in detail can all be referred to the description of the technical scheme of the water shortage detection method of the cleaning device described above.

[0132] Corresponding to the above method embodiment, this specification also provides an embodiment of a water shortage detection module of a cleaning device, Figure 4 FIG. 1 shows a schematic diagram of the structure of a water shortage detection module of a first cleaning device provided in an embodiment of the present specification, such as Figure 4 As shown, the water shortage detection module comprises at least two electrolytic electrodes 1, the two electrolytic electrodes 1 are arranged at an interval, and the extending direction of the interval is parallel to the gravity direction or at a set angle;

[0133] The water shortage detection module is arranged in the water storage tank of the cleaning equipment. The two electrolysis electrodes 1 are used to electrolyze water to generate electrolyte, and the target current value flowing through the electrolysis electrodes 1 is used to detect whether the water storage tank of the cleaning equipment is short of water.

[0134] Specifically, the electrolysis electrode includes an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end. The electrolysis electrode connection end is used to connect to a power source, and the plurality of electrolysis electrode parts extending from the electrolysis electrode connection end are arranged at intervals, and the intervals between the plurality of electrolysis electrode parts can electrolyze water to produce electrolyte.

[0135] In practical applications, the cleaning device includes a water storage tank, in which a water shortage detection module is arranged. The water shortage detection module can be arranged at the bottom of the water storage tank. The water shortage detection module can be a water electrolysis module, which includes at least two electrolysis electrodes. The two electrolysis electrodes can electrolyze water to produce an electrolyte, such as hypochlorous acid. Among them, the positive electrolysis electrode can be a titanium-based electrolysis electrode.

[0136] It should be noted that, during use, the water shortage detection module can be continuously powered on to electrolyze water through two electrodes disposed at intervals to generate an electrolyte, such as hypochlorous acid, for sterilization and disinfection.

[0137] In the embodiment of the present specification, when the interval between the two electrolytic electrodes remains unchanged, the adhesion height of the water remains unchanged. By vertically placing the water shortage detection module in the water storage barrel, the two electrolytic electrodes are in a vertical state. When the cleaning device is in an upright state, the cleaning device body is tilted during cleaning operation, that is, the extension direction of the interval between the two electrolytic electrodes is parallel to the direction of gravity or at a set angle, or in other words, parallel to the rising direction of the electrolytic bubbles or at a set angle, so that the water can fall under the action of gravity, which is conducive to the discharge of the water remaining between the two electrolytic electrodes. Compared with the horizontally placed electrolytic electrodes, the amount of water adhering between the two electrolytic electrodes will be greatly reduced, so that compared with the state where the two electrolytic electrodes are soaked in water, the conduction resistance between the two electrolytic electrodes is greatly increased, and then the current passing through the electrolytic electrodes is greatly reduced. In this way, by monitoring the current passing through the electrolytic electrodes, it is possible to use the water shortage detection module to detect whether there is water shortage in the water storage tank, so that the water shortage detection module has both water electrolysis function and water shortage detection function.

[0138] For example, Figure 5 FIG. 1 is a schematic diagram of a water shortage detection module provided in an embodiment of the present specification in a water storage tank. Figure 5 As shown, the water shortage detection module is placed vertically in the water storage tank, so that the extension direction of the interval between the two electrolysis electrodes included in the water shortage detection module is parallel to the gravity direction or at a set angle during use, that is, the two electrolysis electrodes are arranged in the vertical direction, which is conducive to the extraction of water between the two electrolysis electrodes.

[0139] In an optional implementation of this embodiment, the two electrolysis electrodes 1 are in the shape of comb teeth and are installed opposite to each other. The two electrolysis electrodes 1 are non-contacting and the distance between the comb teeth is consistent.

[0140] Figure 6 is a structural diagram of a water shortage detection module of a second cleaning device provided in an embodiment of this specification, such as Figure 6 As shown, the water shortage detection module comprises two electrolysis electrodes 1, namely a first electrolysis electrode 11 and a second electrolysis electrode 12. The first electrolysis electrode 11 and the second electrolysis electrode 12 are in a comb-tooth shape and are installed in pairs.

[0141] In actual applications, the two electrolysis electrodes are in the shape of comb teeth, and the intervals between the two comb teeth can electrolyze water to produce electrolyte. Due to the capillary phenomenon of water, the height of water adhering between the comb teeth is inversely proportional to the comb teeth spacing of the two electrolysis electrodes, that is, the smaller the comb teeth spacing, the higher the adhesion height; and in order to ensure that the water shortage detection module has a strong electrolysis function, based on cost considerations, it is necessary to make the comb teeth spacing of the two electrolysis electrodes as small as possible, which will lead to an increase in the amount of adhering water. If the water shortage detection module is placed horizontally, the height of the adhering water will be much higher than the height of the comb teeth. Even if the water in the water storage barrel is completely used up, the water between the two electrolysis electrodes cannot be discharged, so the water shortage detection module of the cleaning equipment cannot be used to realize water shortage detection in the water storage tank.

[0142] Therefore, in the embodiment of the present specification, when the distance between the comb teeth remains unchanged, the adhesion height of water remains unchanged, and the extension direction of the comb teeth interval between the two electrolysis electrodes is parallel to the gravity direction or at a set angle, so that the water can fall and the amount of water adhering between the comb teeth of the two electrolysis electrodes is greatly reduced.

[0143] In an optional implementation of this embodiment, the two electrolysis electrodes 1 can also be constructed in a spiral winding shape. It should be noted that the spiral winding shape can increase the relative area of ​​the positive and negative electrodes, thereby increasing the electrolysis area and effectively improving the electrolysis efficiency.

[0144] As an example, Figure 7 is a structural diagram of a water shortage detection module of a third cleaning device provided in an embodiment of this specification, such as Figure 7As shown, the electrolysis electrode 1 includes a first electrolysis electrode 11 and a second electrolysis electrode 12. The first electrolysis electrode 11 is located on the outside, and the second electrolysis electrode 12 is located on the inside. The first electrolysis electrode 11 and the second electrolysis electrode 12 are wound in parallel for a set number of turns in a spiral winding shape.

[0145] In an optional implementation of the present embodiment, the two electrolysis electrodes 1 are porous sheet-like or arc-like structures; that is, the two electrolysis electrodes 1 can also be sheet-like or arc-like structures arranged at intervals, and the sheet-like or arc-like structures are provided with a plurality of small holes for electrolyzing water to produce electrolyte for sterilization and disinfection.

[0146] As an example, Figure 8 is a structural diagram of a water shortage detection module of a fourth cleaning device provided in an embodiment of this specification, such as Figure 8 As shown, the electrolysis electrode 1 is a sheet-like structure arranged in parallel at intervals, including a first electrolysis electrode 11 and a second electrolysis electrode 12. The first electrolysis electrode 11 is located on both sides, and the second electrolysis electrode 12 is located in the middle. The first electrolysis electrode 11 and the second electrolysis electrode 12 are both sheet-like porous structures, which are used to electrolyze water to produce electrolyte. The extension direction of the interval between the first electrolysis electrode 11 and the second electrolysis electrode 12 during use is parallel to the gravity direction or at a set angle, that is, in a vertical state.

[0147] In an optional implementation of this embodiment, the electrolysis electrode 1 includes an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end, and the electrolysis electrode connection ends of the two electrolysis electrodes 1 are both located above the electrolysis electrode parts. In this way, the bottom end of the electrolysis electrode part can be as close to the bottom of the water storage barrel as possible, so that the water shortage detection result is closer to the actual water shortage state.

[0148] It should be noted that, taking the comb-teeth-shaped electrolysis electrode as an example, the two electrolysis electrodes can be installed front to back, with the top being the electrolysis electrode connection ends of the two electrolysis electrodes, and the extended comb teeth being the electrolysis electrode member, and the electrolysis electrode connection ends of the two electrolysis electrodes are both located above the electrolysis electrode member, so that the bottom end of the electrolysis electrode member can be as close to the bottom of the water storage barrel as possible, so that the water shortage detection result is closer to the actual water shortage state.

[0149] Using the above example, Figure 6 As shown, the first electrolysis electrode 11 is located at the front side, and the second electrolysis electrode 12 is located at the rear side. The first electrolysis electrode 11 and the second electrolysis electrode 12 are inserted front and back, and the upper part is the electrolysis electrode connection end of the two electrolysis electrodes 1. The extended comb teeth are the electrolysis electrode parts, and the electrolysis electrode connection ends of the two electrolysis electrodes 1 are both located above the electrolysis electrode parts.

[0150] In an optional implementation of this embodiment, the forming method of the electrolytic electrode is described. Fig. 9Schematic diagram of the structure of an electrolytic electrode provided in one embodiment of this specification. Fig. 9 As shown, the two electrolysis electrodes 1 include a first electrolysis electrode 11 and a second electrolysis electrode 12, the first electrolysis electrode 11 is an anode plate, the second electrolysis electrode 12 is a cathode plate, the first electrolysis electrode 11 and the second electrolysis electrode 12 both include a pole piece body 31, a pole piece portion 32 on the pole piece body 31, and a connecting portion 33 connecting the pole piece portion 32 to the pole piece body 31; the connecting portion 33 is constructed to be twisted relative to the pole piece body 31 so that the pole piece portion 32 extends in a vertical direction, and the connecting portion 33 is twisted so that the pole piece portion 32 is perpendicular to the pole piece body 31. That is, during the processing of the first electrolysis electrode 11 and the second electrolysis electrode 12, the shapes of the pole piece body 31, the pole piece portion 32 and the connecting portion 33 can be cut out on the whole electrode. Specifically, the pole piece of equal width is formed by shearing from one side to the opposite side on the whole electrode, and the unsheared portion forms the pole piece body 31, and then the sheared pole piece of equal width is folded 90° relative to the pole piece body 31 to form a twisted connecting portion 33 and a pole piece portion 32 perpendicular to the pole piece body 31. Fig. 9 In the installation state shown, the pole piece portion 32 extends in the vertical direction, and the pole piece body 31 extends in the horizontal direction. In this way, the processing difficulty of the first electrolysis electrode 11 and the second electrolysis electrode 12 can be effectively reduced, thereby improving the processing efficiency of the first electrolysis electrode 11 and the second electrolysis electrode 12.

[0151] Fig.10 is a schematic diagram of a torsion structure of a first electrolytic electrode provided in an embodiment of this specification, Fig.11 is a schematic diagram of a torsion structure of a second electrolytic electrode provided in an embodiment of this specification, Fig.12 Schematic diagram of the twisted structure of the third electrolytic electrode provided in an embodiment of this specification, such as Figure 10-12 The diagram shows the twisted structure of the electrolytic electrode at different angles. Figure 10-12 As shown, the connecting portion 33 is twisted relative to the pole piece body 31 , so that the pole piece portion 32 is perpendicular to the pole piece body 31 .

[0152] In addition, in addition to the aforementioned two electrolysis electrodes being installed front and back, that is, in addition to the electrolysis electrode connection ends of the two electrolysis electrodes being located above the electrolysis electrode member, the two electrolysis electrodes can also be installed top and bottom, that is, the electrolysis electrode connection end of one electrolysis electrode is located above the electrolysis electrode member, and the electrolysis electrode connection end of the other electrolysis electrode is located below the electrolysis electrode member. In other words, the two electrolysis electrodes included in the water shortage detection module can be divided into a first electrolysis electrode and a second electrolysis electrode, the first electrolysis electrode is located above, the second electrolysis electrode is located below, and the comb teeth of the first electrolysis electrode and the second electrolysis electrode are installed top and bottom.

[0153] It should be noted that, by installing the two electrolysis electrodes in a vertical manner, the two electrolysis electrodes are arranged vertically, so that water droplets can quickly slide down from between the comb teeth of the two electrolysis electrodes, greatly reducing the residual moisture on the comb teeth of the two electrolysis electrodes, so that the current values ​​flowing through the two electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, so that the water shortage detection module can realize the functions of water electrolysis and water shortage detection at the same time.

[0154] For example, the electrolysis electrodes are comb-shaped and installed in pairs. Fig.13 is a structural diagram of a fifth water shortage detection module provided in an embodiment of this specification, such as Fig.13 As shown, the water shortage detection module includes a first electrolysis electrode 11 and a second electrolysis electrode 12, wherein the first electrolysis electrode 11 is located at the top, and the second electrolysis electrode 12 is located at the bottom, and the comb teeth of the two electrolysis electrodes are installed in a plug-in manner.

[0155] In an optional implementation of this embodiment, Figure 4 As shown, an adsorption component 2 is arranged below the two electrolytic electrodes 1 .

[0156] In practical applications, when it is necessary to arrange an adsorption component under the two electrolysis electrodes, the two electrolysis electrodes are installed front and back, that is, the electrolysis electrode connection ends of the two electrolysis electrodes are located above the electrolysis electrode components. The adsorption component is used to absorb the residual moisture on the two electrolysis electrodes.

[0157] It should be noted that the adsorption component can drain the residual water on the two electrolytic electrodes. When the water level in the water tank is lower than the two electrolytic electrodes, the adsorption component below also has a capillary effect. Under the combined action of capillary phenomenon and gravity, most of the water originally remaining between the two electrolytic electrodes will be drained.

[0158] In the embodiments of the present specification, an adsorption component can be provided under the two electrolysis electrodes to ensure that the water between the two electrolysis electrodes can be fully discharged. At this time, if there is a lack of water in the water storage tank, there is less water remaining between the two electrolysis electrodes. When the water is fully discharged, the current obtained by detection becomes very low. Therefore, the detection of the current reference value under the full water state can be omitted at this time. Whether there is a lack of water in the water storage tank can be determined directly by judging whether the target current value is less than the current threshold value, thereby improving the detection efficiency.

[0159] In an optional implementation of the present embodiment, the adsorption component 2 is an insulating structure constructed of an insulating material, and the adsorption component 2 is composed of at least two parts; when the two electrolysis electrodes 1 are comb-tooth-shaped and inserted into each other, the distance between at least the two parts is smaller than the comb-tooth distance between the two electrolysis electrodes 1.

[0160] In an optional implementation of this embodiment, the adsorption component 2 is a comb-tooth structure or a parallel plate structure.

[0161] The insulating material may be plastic, rubber, etc.

[0162] In a specific implementation, the adsorption component is composed of at least two parts, which can be a comb-tooth structure or a parallel plate structure. When the adsorption component is a comb-tooth structure, the comb-tooth spacing of the adsorption component is smaller than the comb-tooth spacing of the two electrolysis electrodes; when the adsorption component is a parallel plate structure, the parallel plate spacing of the adsorption component is smaller than the comb-tooth spacing of the two electrolysis electrodes.

[0163] In practical applications, when the two electrolytic electrodes are in the shape of comb teeth and installed opposite to each other, the two electrolytic electrodes can be installed opposite to each other front and back, and an adsorption component with a smaller spacing is closely arranged below the two electrolytic electrodes. The adsorption component can be a comb tooth structure or a parallel plate structure. When the water level is lower than the lowest end of the two electrolytic electrodes, the water originally attached between the electrolytic electrodes will be absorbed by the adsorption component below under the capillary action, so as to achieve the effect of fully draining the water between the electrolytic electrodes, thereby improving the stability of the water shortage detection function.

[0164] Using the above example, Figure 6 As shown, the water shortage detection module includes a first electrolysis electrode 11 and a second electrolysis electrode 12, the first electrolysis electrode 11 is located at the front side, and the second electrolysis electrode 12 is located at the rear side. The first electrolysis electrode 11 and the second electrolysis electrode 12 are arranged front to back, and the adsorption component 2 is comb-shaped, and the comb tooth spacing of the adsorption component 2 is smaller than the comb tooth spacing of the two electrolysis electrodes 1 (the first electrolysis electrode 11 and the second electrolysis electrode 12).

[0165] Another example, Fig.14 is a structural diagram of a sixth water shortage detection module provided in an embodiment of this specification, such as Fig.14 As shown, the water shortage detection module includes a first electrolysis electrode 11 and a second electrolysis electrode 12. The first electrolysis electrode 11 is located on the front side, and the second electrolysis electrode 12 is located on the rear side. The first electrolysis electrode 11 and the second electrolysis electrode 12 are arranged front to back, and an adsorption component 2 with a parallel plate structure is closely arranged below the first electrolysis electrode 11 and the second electrolysis electrode 12.

[0166] In addition, if the electrolysis module needs to be placed horizontally due to limitations such as the structural space of the water storage tank, an adsorption component, such as a comb structure or a parallel plate structure made of insulating material, can be set closely below the two electrolysis electrodes in the water shortage detection module, and the distance between the two parts of the adsorption component is smaller than the distance between the two electrolysis electrodes. When the water level in the water storage tank is lower than the two electrolysis electrode sheets, the adsorption component below also has a capillary effect. Under the combined action of capillary phenomenon and gravity, most of the water originally remaining between the two electrolysis electrodes will be adsorbed, thereby realizing water shortage detection using the horizontally placed water shortage detection module.

[0167] For example, Fig.15is a structural diagram of a seventh water shortage detection module provided in an embodiment of this specification, such as Fig.15 As shown, the water shortage detection module includes a first electrolysis electrode 11 and a second electrolysis electrode 12, the first electrolysis electrode 11 and the second electrolysis electrode 12 are horizontally arranged, and an adsorption component 2 is closely arranged below the first electrolysis electrode 11 and the second electrolysis electrode 12, and the adsorption component 2 is an insulating comb tooth constructed of an insulating material, and the spacing of the insulating comb teeth is smaller than the comb tooth spacing of the first electrolysis electrode 11 and the second electrolysis electrode 12, so as to extract the moisture remaining between the comb teeth of the first electrolysis electrode 11 and the second electrolysis electrode 12.

[0168] It should be noted that a variety of structures of water shortage detection modules and adsorption components are provided, and the structures of the water shortage detection modules and adsorption components are flexible and can adapt to most application scenarios.

[0169] In an optional implementation of this embodiment, the adsorption component is a water-absorbing structure made of a water-absorbing material, and the size of the adsorption component is greater than or equal to the bottom size of the two electrolysis electrodes.

[0170] It should be noted that the adsorption component can be a block-shaped water-absorbing structure made of a water-absorbing material. The adsorption component is arranged close to the bottom of the two electrolytic electrodes, and its size is greater than or equal to the bottom size of the two electrolytic electrodes, so as to better absorb the residual water between the two electrolytic electrodes, so as to achieve the effect of fully draining the water between the electrolytic electrodes, thereby improving the stability of the water shortage detection function.

[0171] In actual applications, the extension direction of the interval between the two electrolysis electrodes during use is parallel to the direction of gravity or at a set angle, or an adsorption component is closely arranged under the two electrolysis electrodes, so that most of the water originally remaining between the two electrolysis electrodes can be exported. However, a small amount of water may still remain between the two electrolysis electrodes. When judging whether there is a lack of water in the water storage tank by detecting the current value flowing through the electrolysis electrodes in the water shortage detection module, it is necessary to refer to the full water current value to determine the current attenuation from the full water state to the water shortage state to detect whether the water storage tank is currently short of water.

[0172] Furthermore, if the extension direction of the interval between the two electrolysis electrodes during use is parallel to the direction of gravity or forms a set angle, and an adsorption component is closely arranged below the two electrolysis electrodes, the water remaining between the two electrolysis electrodes is discharged in a dual manner through the interval in the direction of gravity and the adsorption component, thereby minimizing the residual water between the two electrolysis electrodes. The residual water between the two electrolysis electrodes is less, and when the water is fully discharged, the current obtained by detection becomes very low. Therefore, the detection of the current reference value in the full water state can be omitted at this time, and whether there is a lack of water in the water storage tank can be directly determined by judging whether the target current value is less than the current threshold value. The fixed threshold method is used to detect whether there is a lack of water, and there is no need to refer to the current in the full water state, which simplifies the process of water shortage detection and improves the detection efficiency.

[0173] The embodiment of the present specification provides a water shortage detection module for a cleaning device, comprising at least two electrolysis electrodes, which are arranged at an interval, and the extension direction of the interval is parallel to the gravity direction or at a set angle. The capillary action and gravity of water are used to allow water droplets to quickly slide down from between the two electrolysis electrodes, greatly reducing the residual water on the two electrolysis electrodes, so that the current values ​​flowing through the two electrolysis electrodes in the water shortage detection module when there is no water shortage and when there is water shortage are quite different, thereby using the water shortage detection module to simultaneously realize the functions of water electrolysis and water shortage detection, replacing the original infrared liquid level switch sensor, reducing costs, eliminating the influence of turbid liquid or stain adhesion on water shortage detection, and improving the accuracy of water shortage detection.

[0174] The above is a schematic scheme of a water shortage detection module of a cleaning device of this embodiment. It should be noted that the technical scheme of the water shortage detection module of the cleaning device and the water shortage detection method of the cleaning device described above belong to the same concept, and the details not described in detail in the technical scheme of the water shortage detection module of the cleaning device can be referred to the description of the technical scheme of the water shortage detection method of the cleaning device described above.

[0175] Corresponding to the above method embodiment, this specification also provides a cleaning device embodiment, the cleaning device includes a water storage tank and a control unit, the water storage tank is provided with the above Figure 4-Figure 15 Any water shortage detection module; the control unit is used to execute the above Figure 1 or Figure 2 The steps of a method for detecting water shortage of a cleaning device are provided.

[0176] The above is a schematic scheme of a cleaning device of this embodiment. It should be noted that the technical scheme of the cleaning device and the technical scheme of the water shortage detection method and water shortage detection module of the above-mentioned cleaning device belong to the same concept, and the details not described in detail in the technical scheme of the cleaning device can be referred to the description of the technical scheme of the water shortage detection method and water shortage detection module of the above-mentioned cleaning device.

[0177] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0178] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0179] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0180] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. A method for detecting water shortage of cleaning equipment, characterized in that: A water shortage detection module is provided in the water storage tank of the cleaning device, and the method comprises: Powering on the water shortage detection module to detect a target current value flowing through an electrolysis electrode in the water shortage detection module, wherein the water shortage detection module comprises at least two electrolysis electrodes, the two electrolysis electrodes are used to electrolyze water to generate electrolyte, the two electrolysis electrodes are spaced apart, and an extending direction of the space is parallel to a gravity direction or at a set angle; Whether the water tank is short of water is determined according to the target current value.

2. The water shortage detection method for cleaning equipment according to claim 1, characterized in that: The two electrolysis electrodes are in the shape of comb teeth and are installed opposite to each other. The two electrolysis electrodes are non-contacting and the distance between the comb teeth is consistent.

3. The water shortage detection method for cleaning equipment according to claim 1 or 2, characterized in that: The step of determining whether the water tank is short of water according to the target current value comprises: Collecting the full water current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water; Determining whether the target current value and the full water current value satisfy a current attenuation ratio; If so, it is determined that the water tank is short of water.

4. The method for detecting water shortage of cleaning equipment according to claim 3, characterized in that: Before determining whether the target current value and the full water current value satisfy the current attenuation ratio, the method further includes: For water with different impurity contents, testing a first test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is full of water, and testing a second test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is short of water; A current attenuation ratio from a full water state to a water shortage state is determined according to the first test current value and the second test current value.

5. The water shortage detection method for cleaning equipment according to claim 1 or 2, characterized in that: An adsorption component is arranged below the two electrolysis electrodes, and the adsorption component is in contact with the two electrolysis electrodes; The step of determining whether the water tank is short of water according to the target current value comprises: Determining whether the target current value is less than a current threshold; If so, it is determined that the water tank is short of water.

6. The method for detecting water shortage of cleaning equipment according to claim 5, characterized in that: Before determining whether the target current value is less than the current threshold, the method further includes: For water with different impurity contents, testing the third test current value of the electrolysis electrode in the water shortage detection module when the water storage tank is in a water shortage state; The current threshold is configured according to the third test current value.

7. The method for detecting water shortage of cleaning equipment according to claim 5, characterized in that: The adsorption component is an insulating structure made of insulating material, and the adsorption component is composed of at least two parts; when the two electrolysis electrodes are comb-tooth shaped and inserted into each other, the distance between the at least two parts is smaller than the comb-tooth distance between the two electrolysis electrodes.

8. The water shortage detection method for cleaning equipment according to claim 1 or 2, characterized in that: The step of powering on the water shortage detection module comprises: At every set period, the water shortage detection module is powered on for a set time.

9. The water shortage detection method for cleaning equipment according to claim 1 or 2, characterized in that: The electrolysis electrode comprises an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end, and the electrolysis electrode connection ends of the two electrolysis electrodes are both located above the electrolysis electrode parts.

10. A water shortage detection module for cleaning equipment, characterized in that: The water shortage detection module comprises at least two electrolysis electrodes, the two electrolysis electrodes are arranged at an interval, and the extending direction of the interval is parallel to the gravity direction or at a set angle; The water shortage detection module is arranged in the water storage tank of the cleaning equipment, the two electrolysis electrodes are used to electrolyze water to produce electrolyte, and the target current value flowing through the electrolysis electrodes is used to detect whether the water storage tank of the cleaning equipment is short of water.

11. The water shortage detection module for cleaning equipment according to claim 10, characterized in that: The two electrolysis electrodes are in the shape of comb teeth and are installed opposite to each other. The two electrolysis electrodes are non-contacting and the distance between the comb teeth is consistent.

12. The water shortage detection module for cleaning equipment according to claim 10, characterized in that: The two electrolytic electrodes are configured in a spirally wound shape.

13. The water shortage detection module for cleaning equipment according to claim 10, characterized in that: The two electrolysis electrodes are porous sheet-shaped or arc-shaped structures.

14. The water shortage detection module for cleaning equipment according to any one of claims 10 to 13, characterized in that: The electrolysis electrode comprises an electrolysis electrode connection end and a plurality of electrolysis electrode parts extending from the electrolysis electrode connection end, and the electrolysis electrode connection ends of the two electrolysis electrodes are both located above the electrolysis electrode parts.

15. The water shortage detection module for cleaning equipment according to any one of claims 10 to 13, characterized in that: The two electrolysis electrodes include a first electrolysis electrode and a second electrolysis electrode, each of which includes a pole piece body, a pole piece portion on the pole piece body, and a connecting portion connecting the pole piece portion to the pole piece body; the connecting portion is constructed to be twisted relative to the pole piece body so that the pole piece portion extends in a vertical direction.

16. The water shortage detection module for cleaning equipment according to any one of claims 10 to 13, characterized in that: An adsorption component is arranged below the two electrolytic electrodes.

17. The water shortage detection module for cleaning equipment according to claim 16, characterized in that: The adsorption component is an insulating structure made of insulating material, and the adsorption component is composed of at least two parts; when the two electrolysis electrodes are comb-tooth shaped and inserted into each other, the distance between the at least two parts is smaller than the comb-tooth distance between the two electrolysis electrodes.

18. The water shortage detection module for cleaning equipment according to claim 17, characterized in that: The adsorption component is a comb-teeth structure or a parallel plate structure.

19. The water shortage detection module for cleaning equipment according to claim 16, characterized in that: The adsorption component is a water-absorbing structure made of a water-absorbing material, and the size of the adsorption component is greater than or equal to the bottom size of the two electrolysis electrodes.

20. A cleaning device, characterized in that: The cleaning device comprises a water tank and a control unit, wherein the water tank is provided with a water shortage detection module as described in any one of claims 10 to 19; the control unit is used to execute the steps of the water shortage detection method for the cleaning device as described in any one of claims 1 to 9.

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