WO2023050438A1 - 清洗机及流体通道组件 - Google Patents

清洗机及流体通道组件 Download PDF

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Publication number
WO2023050438A1
WO2023050438A1 PCT/CN2021/122479 CN2021122479W WO2023050438A1 WO 2023050438 A1 WO2023050438 A1 WO 2023050438A1 CN 2021122479 W CN2021122479 W CN 2021122479W WO 2023050438 A1 WO2023050438 A1 WO 2023050438A1
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WIPO (PCT)
Prior art keywords
partial section
side wall
sub
fluid channel
flow part
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Application number
PCT/CN2021/122479
Other languages
English (en)
French (fr)
Inventor
刘伟冬
陈振
王晓勇
周春锋
Original Assignee
添可智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 添可智能科技有限公司 filed Critical 添可智能科技有限公司
Priority to CN202180102628.0A priority Critical patent/CN117999022A/zh
Priority to PCT/CN2021/122479 priority patent/WO2023050438A1/zh
Publication of WO2023050438A1 publication Critical patent/WO2023050438A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid

Definitions

  • the present application relates to the technical field of smart home appliances, in particular to a washing machine and a fluid channel assembly.
  • the washing machine is a washing machine that can spray water to clean the ground or carpet surface and recover sewage.
  • the cleaning process the user needs to observe and judge the cleanliness of the cleaned area in real time, and control the operation status of the cleaning machine according to the change of the cleanliness. Limited by the user's own vision conditions and the interference of the external environment, the user is prone to misjudgment of the cleanliness of the area to be cleaned, which in turn interferes with the operation of the cleaning machine.
  • the embodiment of the present application provides a washing machine and a fluid passage assembly, which can accurately judge the cleanliness of the area to be cleaned.
  • the embodiment of the present application provides a cleaning machine, which is characterized by comprising: a housing;
  • a fluid channel assembly disposed inside the housing, includes a fluid channel and a sensing device
  • the sensing device includes a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged on opposite side walls on opposite sides of the fluid channel.
  • the fluid channel includes a first partial section
  • the first partial section has a main flow portion and a sub flow portion arranged in sequence along a first direction and communicating with each other, the first direction and the The extension direction of the first partial section is vertical
  • the sub-flow part has a first side wall and a second side wall oppositely arranged, and the distance between any opposite side walls in the main flow part is larger than the first side wall The distance between one side wall and the second side wall; the transmitting end is set on the first side wall, and the receiving end is set on the second side wall.
  • the first side wall and the second side wall are the closest opposite side walls of the sub-flow portion.
  • the first side wall has a first light transmission area
  • the second side wall has a second light transmission area opposite to the first light transmission area
  • the emitting end is disposed on the The first light-transmitting area is far away from the side of the second light-transmitting area
  • the receiving end is arranged on the side of the second light-transmitting area away from the first light-transmitting area.
  • the distance between the first side wall and the second side wall is not greater than 12mm.
  • the distance between the first side wall and the second side wall is not less than 6mm.
  • the sub flow part is disposed on any side of the main flow part except the bottom side.
  • the sub-flow portion maintains communication with the main flow portion along the first direction.
  • the extension direction of the first partial segment is bent to form an arc in the first plane; or, the first partial segment completely forms an arc in the first cylindrical plane.
  • the water outlet end of the first partial section is higher than the water inlet end of the first partial section.
  • the distance between the water outlet end of the first partial section and the inlet end of the fluid channel is greater than the distance between the water inlet end of the first partial section and the inlet end of the fluid channel.
  • the main flow part is formed in the inner area of the arc structure, and the sub flow part is formed in the outer area of the arc structure.
  • the sub-flow part is formed by any of the following methods: a partial area of a side wall of the fluid channel at the first partial section protrudes outward from the flow channel along the first direction to form a sub-flow part; A part of the side wall of the fluid channel at the first partial section is recessed toward the other side wall opposite to the side wall to form a sub-flow part; the parts of the two opposite side walls of the fluid channel at the first partial section The regions are recessed towards each other to form the sub-flow passages.
  • the fluid channel includes a second partial section located between the first partial section and the inlet end, the extending direction of the second partial section is curved in a first plane to form an arcuate configuration , the main flow part is connected to the inner side of the arc structure, and the sub flow part is connected to the outer side of the arc structure.
  • the sub-flow portion is kept isolated from the main flow portion along the first direction, and an end of the sub-flow portion close to the inlet end communicates with the main flow portion.
  • the fluid channel includes a third partial section located below the first partial section, the third partial section is curved in the second cylindrical surface to form an arc configuration and the first partial section The lower end of the first partial segment and the third partial segment are not in the same plane.
  • the third partial segment is formed between the first partial segment and the inlet end, the lowest point of the third partial segment being lower than the first partial segment.
  • the third partial section is formed between the first partial section and the inlet end; and/or, the third partial section is formed in a bottom region of the fluid channel.
  • the orthographic projection of the inlet port on the plane where the outlet port is located does not overlap with the outlet port.
  • an embodiment of the present application provides a washing machine, which is characterized in that it includes: a housing; a fluid passage assembly disposed inside the housing, including a fluid passage and a sensing device; the fluid passage includes a first partial section , the first partial segment has a main flow portion and a sub-flow portion arranged in sequence along a first direction and communicated with each other, the first direction is perpendicular to the extension direction of the first partial segment, and the sub-flow portion It has a first side wall and a second side wall oppositely arranged, and the distance between any two opposite side walls in the main passage portion is greater than the distance between the first side wall and the second side wall; The induction device is arranged on the sub-flow part.
  • an embodiment of the present application provides a fluid channel assembly, which is characterized in that it includes:
  • a fluid channel having an inlet port and an outlet port
  • the induction device includes a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged on opposite side walls of the fluid passage which are closest to each other.
  • a transmitting end and a receiving end are respectively arranged on opposite sides of the fluid channel, and the transmitting end sends out an optical signal and the receiving end receives the optical signal sent by the transmitting end.
  • the optical signal sent by the transmitting end needs to penetrate the water flow to be received by the receiving end, and the penetration rate of the optical signal in the water flow is negatively correlated with the degree of pollution of the water flow.
  • the penetration rate determines the degree of contamination of the water flow; in this way, when the sewage in the area to be cleaned is recycled through the fluid channel, the optical signal in the water flow can be determined according to the amount of light signal sent by the transmitter and the amount of light received by the receiver.
  • the penetrating rate in the water flow and the degree of dirtiness of the water flow and then accurately judge the cleanliness of the cleaned area and accurately control the operating state of the cleaning machine according to the judgment results. On the one hand, it can get rid of the dependence on the user's subjective observation and judgment. 1. Reduce the user's visual fatigue and improve the judgment accuracy of the cleanliness of the cleaned area.
  • the third aspect can be based on the cleanliness. Accurate judgment to control the clean water output of the washing machine, reduce the waste of water resources and reduce the frequency of clean water replenishment/water change.
  • Fig. 1 is a cross-sectional view of a structure of a fluid channel assembly provided by some embodiments of the present application;
  • Fig. 2 is a numerical curve diagram of the degree of contamination detected by the fluid channel assembly in Fig. 1 under different water volumes;
  • Fig. 3 is a cross-sectional view of another structure of a fluid channel assembly provided by some embodiments of the present application.
  • Fig. 4 is a cross-sectional view of another structure of a fluid channel assembly provided by some embodiments of the present application.
  • Fig. 5 is a cross-sectional view of another structure of a fluid channel assembly provided by some embodiments of the present application.
  • Fig. 6 is a cross-sectional view of another structure of a fluid channel assembly provided by some embodiments of the present application.
  • Fig. 7 is an axonometric view of another structure of a fluid channel assembly provided by some embodiments of the present application.
  • FIG. 8 is a cross-sectional view of the fluid channeling assembly of FIG. 7;
  • Figure 9 is a sectional view along a longitudinal section of the fluid channeling assembly in Figure 7;
  • Fig. 10 is a top view of another structure of the fluid channel assembly provided by some embodiments of the present application.
  • Figure 11 is a left side view of the fluid channeling assembly of Figure 10;
  • Fig. 12 is a top view of another structure of the fluid channel assembly provided by some embodiments of the present application.
  • Fig. 13 is a numerical curve diagram of the degree of contamination detected by the fluid channel assembly in Figs. 3-11 under different water volumes;
  • Fig. 14 is a partial structural diagram of a cleaning machine provided by some embodiments of the present application.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • a feature defined as “first” or “second” may explicitly or implicitly include one or more of said features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
  • the embodiment of the present application provides a fluid channel assembly 101, which includes a fluid channel 10 and a sensing device 20, which can accurately determine the cleanliness of the area to be cleaned.
  • the fluid channel 10 may have an inlet port 10a and an outlet port 10b, and the inlet port 10a and the outlet port 10b are in communication.
  • the fluid channel 10 can be all or part of the sewage recovery channel of various cleaning equipment; the recycled sewage can enter the fluid channel 10 from the inlet port 10a, and further flow to sewage collecting devices such as the sewage tank 103 or the like through the outlet port 10b Sewage pipes and other sewage discharge devices.
  • the recovered sewage can be the waste water formed on the cleaned area after the cleaned area is cleaned, or it can be the original residual dirty liquid on the cleaned area.
  • the fluid channel 10 may have a negative pressure, so that the recycled sewage flows in from the inlet port 10a and flows out from the outlet port 10b in a direction.
  • the sensing device 20 is used to detect the degree of contamination of the water flow, and may include a transmitting end 21 and a receiving end 22 .
  • the transmitting end 21 and the receiving end 22 are respectively arranged on opposite side walls of the fluid channel 10 . That is, the transmitting end 21 is arranged on one side wall of the fluid channel 10, and the receiving end 22 is arranged on the side wall opposite to the side wall in the fluid channel 10, so that the fluid in the fluid channel 10 can be Pass through the area between the transmitting end 21 and the receiving end 22.
  • the transmitter 21 is configured to send out signals
  • the receiver 22 is configured to receive the signals sent by the transmitter 21 and convert them into corresponding electrical signals.
  • the sensing device 20 is a sensor.
  • the sensing device 20 can be a photoelectric sensor.
  • the type of light signal can be determined according to actual needs, such as visible light and infrared light, which are not limited in this embodiment of the present application.
  • the sensing device 20 may also be a capacitive sensor, a current sensor, a total reflection sensor, etc., and the sensing device 20 is arranged at the narrowest part and/or the curved part of the fluid channel 10 . The specific method is as described below.
  • the optical signal sent by the transmitting end 21 needs to penetrate the water flow to be received by the receiving end 22 .
  • the penetration rate of the optical signal in the water flow has a negative correlation with the degree of pollution of the water flow.
  • the water flow is relatively clean and clear, that is, the degree of pollution is small, the water flow does not contain dirty particles or contains very few dirty particles, and all or most of the optical signals sent by the transmitting end 21 can penetrate the water flow and be detected by the receiving end 22.
  • the penetration rate of the optical signal in the water flow is relatively high; as the content of dirty particles in the water flow increases, the degree of pollution of the water flow gradually increases, and part of the optical signal sent by the transmitter 21 will be blocked by the dirty particles and cannot When reaching the receiving end 22, the penetration rate of the optical signal in the water flow is gradually reduced; when the pollution degree of the water flow exceeds a certain threshold, all the optical signals sent by the transmitting end 21 cannot penetrate the water flow, so that the receiving end 22 can receive The received optical signal is zero or close to zero. In this way, the degree of contamination of the water flow can be more accurately quantitatively determined according to the penetration rate of the light signal in the water flow.
  • the penetration rate of the optical signal in the water flow can be determined according to the amount of optical signal sent by the transmitting end 21 and the amount of optical signal received by the receiving end 22.
  • the penetration rate in the water flow determines the degree of dirtiness of the water flow, so as to accurately judge the cleanliness of the area to be cleaned and accurately control the operating state of the cleaning machine according to the judgment results.
  • the fluid channel assembly 101 provided by the embodiment of the present application can get rid of the dependence on the user's subjective observation and judgment, reduce the user's visual fatigue, and improve the judgment accuracy of the cleanliness of the cleaned area;
  • the fluid channel assembly 101 provided by the embodiment of the present application can also accurately detect and judge the cleanliness of these areas, and then control the cleaning machine to accurately clean these areas , can increase the adaptability to dark and dark environments and visual blind spots, and improve cleaning efficiency and cleanliness;
  • the third aspect based on the fluid channel assembly 101 provided by the embodiment of the present application, it can be cleaned according to the cleanliness of the area and its changes Accurate judgment, precise control of the clean water output of the washing machine, so that the clean water output can match the current cleanliness of the cleaned area, reduce the waste of water resources, reduce the consumption speed of clean water and the frequency of water replenishment/water change, and can achieve a reduction The user's burden and the effect of improving the user's convenience
  • the thickness of the water flow that the optical signal sent by the transmitter 21 can penetrate is limited, which is related to the design value of the detection distance range of the sensing device 20; the larger the design value of the detection distance range of the sensing device 20, the more the optical signal can penetrate. The greater the thickness of the permeable water flow, the higher the cost of the induction device 20 will be.
  • the thickness of the water flow between the transmitting end 21 and the receiving end 22 will increase accordingly; if the actual thickness of the water flow exceeds the emission The maximum thickness of the water flow that the optical signal sent by the transmitter 21 can penetrate. Even if the water flow is a clean water flow that does not contain dirty particles, the optical signal sent by the transmitter 21 cannot penetrate the water flow, so that the receiver 22 cannot receive light. signal, resulting in sensing failure of the sensing device 20, misidentification or failure to identify the degree of contamination of the water flow, and thus causing misjudgment of the degree of contamination of the area to be cleaned.
  • the maximum thickness of the water flow that the optical signal can penetrate can be defined as the maximum thickness of the clean water flow that the optical signal sent by the transmitting end 21 can penetrate; under this thickness condition, the optical signal sent by the transmitting end 21 can penetrate The clean water flowing through the thickness is received by the receiving end 22 .
  • the maximum water flow thickness that the optical signal can penetrate is positively related to the penetration ability of the optical signal to clean water, which belongs to the own characteristics of the optical signal and can be determined through experiments; for the optical signal with the same wavelength, the The maximum thickness of the clean water flow is fixed; the maximum thickness of the clean water flow that can be penetrated by optical signals of different wavelengths is different.
  • the one with the larger wavelength can penetrate
  • the maximum thickness of the clean water flow is smaller, and the maximum thickness of the clean water flow that the wavelength is smaller can penetrate is larger.
  • the horizontal axis in Fig. 2 is the time axis, and its unit is second (s);
  • the vertical axis is the detection value of the degree of contamination of the sensing device 20, which can be expressed in the form of voltage value, and its unit is millivolts (mV). .
  • the transmitting end 21 and the receiving end 22 can be arranged on any opposite side walls of the fluid channel 10, which is not limited in the embodiment of the present application.
  • the straight line where the transmitting end 21 and the receiving end 22 are located is perpendicular to the opposite side walls.
  • the transmitting end 21 and the receiving end 22 can be arranged on the opposite side walls of the fluid channel 10 that are closest to each other, that is, the distance between the two opposite side walls is at any position in the fluid channel 10.
  • the distance between the side walls on opposite sides is the smallest, so that the area of the fluid channel 10 between the two opposite side walls is the narrowest point of the fluid channel 10 .
  • the transmitting end 21 and the receiving end 22 can be arranged at the narrowest point of the fluid channel 10.
  • the water flow in the fluid channel 10 can obtain the minimum thickness between the transmitting end 21 and the receiving end 22.
  • the sensing device 20 with a small design value of the detection distance range can also realize the recognition of the degree of contamination of the water flow, reduce the accuracy level and component cost of the sensing device 20 to be used, and reduce the overall cost and market price of the washing machine.
  • the distance between the nearest opposite side walls of the fluid channel 10 can be configured such that the distance between the transmitting end 21 and the receiving end 22 is not greater than the maximum water flow thickness that the optical signal can penetrate.
  • the transmitting end 21 and the receiving end 22 can be arranged on the side walls on both sides of the fluid channel 10 which are arranged opposite to each other in the up and down direction.
  • the sensing device 20 cannot sense the degree of contamination of the sewage due to no water flow passing between the transmitting end 21 and the receiving end when the water flow rate is small (hereinafter referred to as small water volume).
  • small water volume The accident of identification can effectively identify the pollution degree of small water volume sewage.
  • the structure of the fluid channel 10 can be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the fluid channel 10 includes a first partial section 11, and the first partial section 11 includes a main flow portion 111 and a sub-flow portion 112, and the sub-flow portion 112 is located in the main flow portion.
  • the side of part 111. 3-6 are cross-sectional views of the first partial segment 11 .
  • the first partial segment 11 has a main flow portion 111 and a sub-flow portion 112 arranged in sequence along a first direction and communicated with each other.
  • the first direction is perpendicular to the extension direction of the first partial segment 11 (ie, the main flow direction of the water flow), Or, the first direction is the normal direction of the first partial segment 11 at the installation place of the induction device, correspondingly, the first direction is located on the cross section of the fluid channel 10, so that at least one partial segment of the fluid channel 10 along its extending direction A structure in which the main passage portion 111 and the sub passage portion 112 are arranged side by side is formed.
  • the fluid channel 10 may consist of only one partial segment, which is the first partial segment 11; in other examples, the fluid channel 10 may include a plurality of partial segments, one of which is the first partial segment. Local segment 11.
  • the sub flow part 112 may have a first side wall 112a and a second side wall 112b oppositely arranged, and the distance between any opposite side walls of the main flow part 111 is greater than that of the first side wall 112a and the second side wall.
  • the distance between the walls 112b, correspondingly, the flow channel thickness of the sub-flow part 112 is smaller than the flow channel thickness of the main flow part 111, and the narrowest part of the fluid channel 10 is located in the sub-flow part 112.
  • the transmitting end 21 can be arranged on the first side wall 112a, and the receiving end 22 can be arranged on the second side wall 112b, so that the thickness of the water flow between the emitting end 21 and the receiving end 22 is smaller than the thickness of the water flow in the main flow part 111 .
  • the sensing device 20 may also be a capacitive sensor, a current sensor, a total reflection sensor, and the like. The sensing device 20 is disposed on the sub-flow portion 112 .
  • the flow area of the main flow portion 111 may be greater than the flow area of the sub flow portion 112 .
  • the main flow part 111 can be used as the main flow area of the fluid channel 10, allowing water flow with a relatively large flow rate and a water flow with a large thickness to pass through, reducing the constraints on the flow upper limit of the fluid channel 10, and can be used in the case of a relatively large degree of dirt.
  • the area to be cleaned is quickly cleaned with a large amount of water, it can meet the needs of recycling large amounts of sewage and improve cleaning efficiency.
  • the sub-flow part 112 can be used as the induction flow area of the fluid passage 10, and the water flow rate and water flow thickness passing through the sub-flow part 112 are limited in a small range, so that the sewage passes through the first side wall 112a and the second side wall.
  • the degree of contamination of the water flow can be identified and detected by the sensing device 20 .
  • the sensing device 20 of the part 112 recognizes and detects the degree of contamination of the sewage, which meets the requirement of sensing the degree of contamination under the condition of recycling large volumes of sewage, and avoids the occurrence of induction failure of the sensing device 20, wrong recognition or failure to recognize the degree of contamination of the water flow To ensure accurate judgment of the degree of dirt in the cleaned area.
  • the ratio of the flow area of the main flow portion 111 to the flow area of the sub flow portion 112 can be determined according to actual needs, for example, it can be a positive number greater than 1, which is not limited in this embodiment of the present application.
  • the flow area of the main flow portion 111 may be several times or even tens of times the flow area of the sub flow portion 112, so that the maximum flow rate of the main flow portion 111 is much greater than that of the sub flow portion 112. Maximum flow.
  • the distance between the first side wall 112a and the second side wall 112b may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the distance between the first sidewall 112a and the second sidewall 112b may be configured to be no greater than the maximum water flow thickness that the optical signal can penetrate. In this way, when the area between the first side wall 112a and the second side wall 112b in the sub-flow portion 112 is fully loaded with water flow, the thickness of the water flow formed by the water flow will not exceed the maximum water flow thickness that the optical signal can penetrate. In this way, the optical signal sent by the transmitting end 21 can still penetrate the water flow and be received by the receiving end 22 .
  • the sensing device 20 can still recognize and detect the degree of contamination of the water flow.
  • the first side wall 112 a and the second side wall 112 b may be any opposite side walls of the sub-flow portion 112 , which is not limited in this embodiment of the present application.
  • the first side wall 112a and the second side wall 112b may be the closest opposite side walls of the sub-flow part 112, so that the sub-flow part 112 is located on the first side wall 112a and the second side
  • the area between the walls 112 b is the narrowest point of the sub-flow part 112 , and correspondingly, this area is also the narrowest point of the fluid channel 10 . In this way, the transmitting end 21 and the receiving end 22 can be arranged at the narrowest point of the fluid channel 10.
  • the fluid channel 10 When the fluid channel 10 is full of sewage, a small amount of sewage in the fluid channel 10 is forced into the sub-flow part 112, and on the first side A water flow with a minimum thickness is formed between the wall 112a and the second side wall 112b; correspondingly, the water flow has a minimum thickness between the transmitting end 21 and the receiving end 22, and the sensing device 20 with a small design value of the detection distance range can also realize the anti-water flow.
  • the degree of contamination can be identified, the accuracy level and component cost of the sensing device 20 to be used can be reduced, and the overall cost and market price of the washing machine can be reduced.
  • the transmitting end 21 and the receiving end 22 can be arranged at different positions of the sub-flow part 112, for example, they can be arranged between the opposite side walls of the sub-flow part 112, or can be arranged on the outer periphery of the sub-flow part 112. Above all, this embodiment of the present application does not limit it.
  • the first side wall 112a may have a first light transmission area
  • the second side wall 112b may have a second light transmission area opposite to the first light transmission area
  • the emitting end 21 may be disposed on the first light transmission area.
  • the side away from the second light-transmitting area, that is, it is set on the outer wall of the first light-transmitting area, and the receiving end 22 can be set on the side of the second light-transmitting area away from the first light-transmitting area, that is, it is set on the side of the first light-transmitting area.
  • the outer wall surface of the second light-transmitting region is provided.
  • the transmitting end 21 and the receiving end 22 are arranged on the outer wall surfaces of the first side wall 112a and the second side wall 112b, which is beneficial to protect the sensor 20 from the influence of water flow and water vapor, prolong the service life of the sensor 20, and
  • the phase positions of the first side wall 112a and the second side wall 112b where the sensor 20 is installed are set as light-transmitting areas, so that the optical signal emitted by the transmitting end 21 can pass through the first light-transmitting area and the second light-transmitting area to reach
  • the receiving end 22 is received by the receiving end 22 .
  • one of the implementation manners of the light-transmitting region is to use transparent materials.
  • the first partial section 11 can be made of transparent material, and even further, the fluid channel 10 can be made of transparent material.
  • the distance between the first light-transmitting area and the second light-transmitting area may be configured to be no greater than the maximum water flow thickness that the optical signal can penetrate, so that there may be a gap between the first light-transmitting area and the second light-transmitting area The thickness of the water flow will not exceed the maximum water flow thickness that the optical signal can penetrate, and the optical signal sent by the transmitting end 21 can always penetrate the water flow and be received by the receiving end 22 .
  • the sensing device 20 can still recognize and detect the degree of contamination of the water flow.
  • the transmitting end 21 may be disposed on the side surface of the first side wall 112a facing the second side wall 112b, that is, disposed on the inner wall surface of the first side wall 112a
  • the receiving end 22 may be disposed on the second side wall 112b.
  • the side wall 112b faces a side surface of the first side wall 112a, that is, is disposed on an inner wall surface of the second side wall 112b.
  • the corresponding portion of the first side wall 112a provided with the transmitting end 21 and the corresponding portion of the second side wall 112b provided with the receiving end 22 can be set as a light-transmitting area, or can be set as a non-light-transmitting area.
  • the distance between the transmitting end 21 and the receiving end 22 is smaller than the distance between the first side wall 112a and the second side wall 112b, so that the narrowest part of the sub-flow part 112 is located between the transmitting end 21 and the receiving end 22
  • the distance between the first side wall 112a and the second side wall 112b can be configured so that the distance between the transmitting end 21 and the receiving end 22 is not greater than the maximum water flow that the optical signal can penetrate thickness.
  • the upper limit and lower limit of the distance between the first side wall 112a and the second side wall 112b may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the distance between the first side wall 112a and the second side wall 112b is not greater than 12mm; in this way, the detection device 20 with a smaller design value of the detection distance range and a lower cost can be used for dirt recognition detection, Reduce device cost, overall machine cost and market price.
  • the distance between the first side wall 112a and the second side wall 112b is not less than 6mm; in this way, common dirt particles can be ensured to pass through the sub-flow part 112 without hindrance, avoiding the accumulation of dirt particles The sub-flow portion 112 is blocked.
  • the distance between the first side wall 112a and the second side wall 112b is 6-12mm, such as 6mm, 6.2mm, 6.5mm, 6.8mm, 7mm, 7.3mm, 7.6mm, 7.9mm, 8mm, 8.2mm mm, 8.6mm, 8.8mm, 9mm, 9.1mm, 9.4mm, 9.7mm, 10mm, 10.2mm, 10.4mm, 10.8mm, 11mm, 11.1mm, 11.3mm, 11.5mm, 11.7mm or 12mm, etc.
  • the sensing device 20 with a smaller design value of the detection distance range and a lower cost can be used to identify and detect the degree of contamination, reducing the cost of the device, the cost of the whole machine and the market price; on the other hand, the common Dirty particles pass through the sub-flow portion 112 smoothly without being hindered, so as to avoid accumulation of dirty particles to block the sub-flow portion 112 .
  • the sub-flow part 112 may be disposed on any one side or multiple sides of the main flow part 111 , which is not limited in this embodiment of the present application. As shown in FIGS. 5-6 , in some embodiments, the sub-flow portion 112 can be disposed on any side of the main flow portion 111 except the bottom side, that is, the sub-flow portion 112 is not disposed on the fluid channel 10 The lowest point of the sub flow part 112 is higher than the lowest point of the main flow part 111 .
  • the sewage with a small amount of water is concentrated in the upper middle area of the cross section of the fluid channel 10 under the action of the negative pressure, and will not pass through.
  • the sub-flow part 112 is arranged at the bottom area of the fluid channel 10, it may not be possible to sense and identify the degree of contamination of the sewage when there is a small amount of water;
  • the through-flow portion 112 is not disposed at the bottom area of the fluid channel 10, so that the degree of contamination of the small amount of sewage can be effectively identified.
  • the forming manner of the sub-flow portion 112 may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • a partial area of one side wall of the fluid channel 10 at a certain partial section may protrude outward from the flow channel along the first direction to form a sub-flow part 112, so that the sub-flow part 112 protrudes from the fluid channel. 10
  • the main flow portion 111 and the sub-flow portion 112 are formed at this partial section, that is, the sub-flow portion 112 protrudes from the main flow portion, and the sub-flow portion 112 is compared with other parts of the fluid channel 10.
  • one side wall of the fluid channel 10 at a certain partial section can be recessed toward the other side wall opposite to the side wall to form a sub-flow part 112; in some other embodiments, the fluid Two opposite side walls of the channel 10 at a certain partial section are recessed toward each other in the first direction to form a sub-flow part 112; in some other embodiments, as shown in FIGS.
  • a partial region of one side of the sidewall is recessed toward the other sidewall opposite to the sidewall to form a sub-flow part 112; Partial areas are recessed towards each other to form the sub-flow portions 112 .
  • the side wall of the sub-flow part 112 of the first partial section 11 is recessed into the flow channel compared with the same side wall of the remaining sections of the fluid channel 10; or, the sub-flow part of the first partial section 11
  • the side walls on both sides of 112 are recessed into the flow channel compared with the side walls on both sides of the rest of the fluid channel 10 .
  • connection structure between the main flow part 111 and the sub flow part 112 may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the sub-flow portion 112 is in communication with the main flow portion 111 along the first direction.
  • there is no isolation structure between one side of the sub-flow part 112 along the first direction and the main flow part 111 and there is no isolation structure in some or all areas, so that the fluid can flow between the sub-flow part 112 and the main flow part 111 along the first direction.
  • Flow occurs between the main flow parts 111 .
  • the sewage flows through the fluid channel 10 , it can easily enter into the sub-flow portion 112 , ensuring that the sensing device 20 of the sub-flow portion 112 enables sensing.
  • the shape of the first partial section 11 can be determined according to actual needs, such as arc shape, straight line shape or other irregular shape, which is not limited in this embodiment of the present application.
  • the first partial section 11 forms an arc structure, and the outflow end of the first partial section 11 is at least on the same level as the inflow end of the first partial section 11.
  • the outflow end of the first partial section 11 is at least as high as At the inflow end of the first partial section 11, the sub-flow part 112 is located outside the arc shape relative to the main flow part 111, so that the main flow part 111 is located inside the arc-shaped structure, and the sub-flow part 112 is located in the arc-shaped structure
  • the sub-flow part 112 can maintain communication with the main flow part 111 along a first direction, and the first direction is the first direction of the normal direction of the first partial segment 11 at the induction device 20 .
  • the main flow part 111 may be formed in an inner region of the arc configuration
  • the sub flow part 112 may be formed in an outer region of the arc configuration.
  • the sewage when the recovered sewage passes through the first partial section 11, the sewage is subjected to centrifugal force due to the arc shape of the first partial section 11, and the centrifugal force makes the sewage have a centrifugal force approaching the sub-flow part 112 along the first direction. movement trend; in this way, it can be guaranteed that the sewage can always be sent into the sub-flow part 112 even if it is a small amount of water, and the inductive device 20 arranged on the sub-flow part 112 can identify and detect the degree of contamination of the sewage, so as to realize the detection of the contaminated water. Accurate judgment of the degree of dirt in the cleaning area.
  • the dirt particles entering the sub-flow part 112 are small, and the large particles of dirt are mainly retained in the main flow part 111, which can prevent the sub-flow part 112 from being blocked and ensure the sensing of the sub-flow part 112.
  • the recognition function is enabled normally.
  • the extension direction of the first partial segment 11 may be an arc-shaped structure on the first plane, or the first partial segment 11 may be an arc-shaped structure on the first cylindrical surface.
  • the first plane can be any plane, preferably, the first plane can be the same as the rolling brush Axis-parallel planes.
  • the first plane may be a horizontal plane, and the outflow end of the first partial section 11 is at least on the same horizontal plane as the inflow end of the first partial section 11; preferably, the first plane has a certain angle with the horizontal plane, and the angle Because it is an acute angle, the outflow end of the first partial section 11 is higher than the inflow end of the first partial section 11, and the distance from the outlet end of the first partial section 11 to the water inlet 10a is greater than the distance from the water inlet end of the first partial section 11 to the water inlet. The distance of nozzle 10a. As shown in FIGS.
  • the fluid channel 10 may include a second partial section 12 located between the first partial section 11 and the inlet end 10 a, and the extending direction of the second partial section 12
  • the arc structure can be formed by bending in the first plane, the main flow part 111 is connected to the inner side of the arc structure, and the sub-flow part 112 is connected to the outer side of the arc structure. That is to say, the sub flow part 112 is located on the outer side of the arc relative to the main flow part 111 .
  • the sewage when the recovered sewage passes through the second partial section 12, the sewage is subjected to the centrifugal force due to the arc shape of the second partial section 12, and the centrifugal force makes the sewage have a vertical direction along the main flow direction approaching the arc structure.
  • the sensing device 20 of the flow part 112 recognizes and detects the degree of contamination of the sewage, so as to realize an accurate judgment of the degree of contamination of the area to be cleaned.
  • the dirt particles entering the sub-flow part 112 are small, and the large particles of dirt are mainly retained in the main flow part 111, which can prevent the sub-flow part 112 from being blocked and ensure the sensing of the sub-flow part 112.
  • the recognition function is enabled normally.
  • the induction device 20 is arranged on the first partial section 11, and the first partial section 11 may be arc-shaped, or the first partial section 11 is a fourth partial section connected to the arc-shaped section, and the fourth partial section Located downstream of the arc segment, the distance between the fourth partial segment and the arc segment is preferably no more than 1 cm, so that the water flow at the fourth partial segment can maintain the inertia of centrifugal force.
  • the sub-flow portion 112 may be kept isolated from the main flow portion 111 along the first direction, and an end of the sub-flow portion 112 close to the inlet end 10 a may communicate with the main flow portion 111 .
  • an isolation portion 112 c is provided between the sub flow portion 112 and the main flow portion 111 to completely isolate them along the first direction. In this way, the sewage entering the fluid channel 10 from the inlet port 10a can be diverted by the separation part 112c, so that most of the water enters the main flow part 111 and a small part of the water enters the sub flow part 112.
  • the end of the sub-flow part 112 away from the inlet port 10a can communicate with the main flow part 111, so that the sewage sensed by the sensing device 20 can reflow to the main flow part 111, and then flow to the outlet port 10b. , so that the flow path of the sub flow part 112 is smooth.
  • the end of the sub-flow part 112 away from the inlet port 10a may also be independent from the main flow part 111, and the sub-flow part 112 and the main flow part 111 discharge the sewage therein through different outlet ports 10b. Fluid channel 10 outside.
  • the isolation portion 112c and the first side wall 112a and the second side wall 112b can be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the isolation portion 112c may be served by one of the first side wall 112a and the second side wall 112b, which is formed between the main flow portion 111 and the sub flow portion 112 accordingly.
  • the sub-flow portion 112 may maintain communication with the main flow portion 111 along the first direction. In other words, there is no isolation structure between one side of the sub-flow part 112 along the first direction and the main flow part 111, and there is no isolation structure in some or all areas, so that the fluid can flow between the sub-flow part 112 and the main flow part 111 along the first direction. Flow occurs between the main flow parts 111 .
  • an arc-shaped guide part may be provided between the sub-flow part 112 and the main flow part 111, and the arc-shaped guide part extends along the main flow direction; here, the arc-shaped guide part
  • the part may be a flow guide rib or a flow guide wall, which is not limited in this embodiment of the present application.
  • the shape of the first partial section 11 can be determined according to actual needs, such as arc shape, straight line shape or other irregular shape, which is not limited in this embodiment of the present application.
  • the arc-shaped diversion rib has an arc-shaped structure, which can make the sewage entering the fluid passage 10 from the inlet end 10a be guided to the wall of the arc-shaped diversion rib by centrifugal force.
  • Part of the area is recessed toward the other opposite side wall, and the recessed area and the part opposite to the recessed area on the other side wall are used to install the induction device 20; or, the parts of the two opposite side walls of the fluid channel 10 at the arc guide rib
  • the areas are recessed towards each other, the opposite recessed portions are used for mounting the induction device 20 .
  • the fluid channel 10 includes a third partial section 13 located below the first partial section 11, the third partial section 13 is an arc-shaped structure on the second cylindrical surface, the second The outflow end of the three partial sections 13 is connected to the inflow end of the first partial section 11 , and the outflow end of the third partial section 13 is lower than the inflow end of the first partial section 11 .
  • the third partial segment 13 in the first direction is not in the same plane as the first partial segment 11 .
  • a third partial section 13 is provided below the sub-flow part 112, which can ensure that the position of the sub-flow part 112 is higher than the bottom area of the fluid channel 10, that is, the lowest point of the sub-flow part 112 is higher than the third section.
  • the lowest point of the partial section 13, in some embodiments, the lowest point of the third partial section 13 is the lowest point of the fluid channel 10; like this, the dirt particles will not be deposited into the sub-flow part 112, and the sub-flow can be avoided. Part 112 is blocked by deposited dirt particles, and the induction failure is caused by dirt particles adhering to the sub-flow part 112 and blocking the transmitting end 21 and the receiving end 22 .
  • the inner side of the arc-shaped structure is located in the upper area of the third partial segment 13, and the outer side of the arc-shaped configuration is located in the bottom area of the third partial segment 13, the arc shape of the third partial segment 13 can be utilized.
  • the shape causes the sewage to have a centrifugal movement tendency due to centrifugal action, so that the sewage is squeezed to the bottom side area of the third partial section 13, and the flow velocity in the bottom side area is accelerated to move quickly with the dirty particles;
  • the deposition of the underside area of the partial section 13 reduces the risk of clogging of the third partial section 13 and the subsequent risk of clogging of the first partial section 11 located above the third partial section 13 .
  • the arc shape of the third partial section 13 can also be used to make the sewage generate greater fluid inertial force and eddy current drag force, which act on the dirty particles in the sewage and make the dirty water Particles migrate perpendicular to the main flow direction in the cross-section of the third partial section 13 , large and small particles can be preliminarily separated and aggregated in the third partial section 13 , so as to avoid the blockage of the sub-flow part 112 caused by mixing of large and small particles.
  • the third partial section 13 may be formed at different positions of the fluid channel 10, which is not limited in this embodiment of the present application.
  • the third partial section 13 may be formed between the first partial section 11 and the inlet port 10a; in this way, the sewage needs to pass through the third partial section 13 first, and then enter the first partial section 11 after being conditioned by the above-mentioned action, The sewage entering the first partial section 11 is in a better state to be sensed, and the sensing accuracy of the sensing device 20 to the degree of dirt in the area to be cleaned is increased.
  • the third partial section 13 can be formed at the bottom area of the fluid channel 10; like this, the above-mentioned effect of the third partial section 13 can be used to reduce the contamination caused by the deposition of dirt particles at the bottom area of the fluid channel 10. Risk of clogging.
  • the third partial section 13 extends from front to rear, and the front to rear direction is the direction opposite to the forward direction, that is, the direction from the roller brush to the motor.
  • the first partial section 11 and the third The partial segments 13 are not in one plane; when the first partial segment 11 is of arcuate configuration in a first cylindrical plane, the first partial segment 11 and the third partial segment 13 are in different cylindrical planes. In this way, the third partial section 13 and the first partial section 11 can play different roles, successively act on the sewage and the dirt particles therein, and realize the combined effect of the above-mentioned corresponding technical effects.
  • the third partial section 13 can be Bending torsion occurs in two planes.
  • the extension direction of the third partial segment 13 can be bent downward in the first plane and downward in the second plane respectively, and the first plane and the second plane are perpendicular; the main flow part 111 and the third partial segment 13 are in the The inside of the arc structure formed by bending in the first plane is connected, and the sub-flow part 112 is connected to the outside of the arc structure, and the arc structure and the arc formed by bending the first partial segment 11 in the first plane The structure is smoothly connected into a continuous arc structure.
  • the continuous arc structure can play the role of the arc structure of the first partial section 11, that is, in the first aspect, when the recovered sewage passes through the third partial section 13 and the first partial section 11, the sewage Due to the continuous arc structure, centrifugal force makes the sewage move towards the outside of the arc structure along the vertical direction of the main flow direction in the third partial section 13; The direction is close to the centrifugal movement trend of the sub-flow part 112; in this way, the centrifugal effect of two continuous arc-shaped structures can be used to ensure that the sewage can always be sent into the sub-flow part 112.
  • the sensing device 20 recognizes and detects the degree of contamination of the sewage, so as to realize accurate judgment of the degree of contamination of the area to be cleaned.
  • the dirt particles in the sewage will migrate perpendicular to the main flow direction in the cross-sections of the third partial section 13 and the first partial section 11, so that the larger dirt particles are concentrated on the inner side of the arc shape That is, in the main flow portion 111 , smaller dirt particles are concentrated on the outer side of the arc shape, that is, in the sub-flow portion 112 , so as to realize the separation and aggregation of large and small particles.
  • the dirt particles entering the sub-flow part 112 are small, and the large particles of dirt are mainly retained in the main flow part 111, which can prevent the sub-flow part 112 from being blocked and ensure the sensing of the sub-flow part 112.
  • the recognition function is enabled normally.
  • the second partial section 12 and the third partial section 12 can be implemented as a structure. That is to say, the extension direction of the second partial section 12 is curved in the first plane to form an arc shape and downward in the second plane to form an arc shape, and is connected to the lower end of the first partial section 11 . In this way, the second partial section 12 can be bent and twisted in two planes, and the combined effect of the above technical effects of the two bent structures can be realized.
  • the shape of the fluid channel 10 can be determined according to actual needs, such as an arc, a straight line, other irregular shapes, or a combination of the above shapes, which is not limited in this embodiment of the present application.
  • the orthographic projection of the inlet port 10a on the plane where the outlet port 10b is located does not overlap with the outlet port 10b, so that the inlet port 10a and the outlet port 10b form a dislocation, and at the same time, the inlet port 10a and the outlet port 10b are on the left and right Dislocation in the direction, see FIG. 14 , that is, in the axial direction of the roller brush, the inlet port 10 a and the outlet port 10 b are arranged in a dislocation manner.
  • the fluid channel 10 as a whole or at least one partial section thereof can be bent to a greater extent to have a relatively sufficient curve shape, so that the above-mentioned sewage feeding effect on the sub-flow part 112 is compared with the separating and focusing effect on large and small particles. It is sufficient to ensure that the sub-flow part 112 exerts a better dirtiness sensing effect.
  • the same kind of sewage is input at the flow rates of 1050ml/min, 515ml/min, and 367ml/min respectively as shown in Figures 3-12
  • the degree of contamination of the sewage is detected by the sensing device 20, and a numerical curve as shown in FIG. 10 can be obtained.
  • the horizontal axis is the time axis, and its unit is second (s);
  • the vertical axis is the dirtiness detection value of the sensing device 20, which can be expressed in the form of voltage value, and its unit is millivolt (mV).
  • the dirtiness values measured by the fluid channel assembly 101 are basically the same, meeting the design accuracy requirements.
  • the embodiment of the present application provides a washing machine 100, including a housing 102 and the fluid channel assembly 101 described in any of the above embodiments.
  • the casing 102 is provided with a suction port 102 a, which can suck the sewage on the surface of the area to be cleaned into the casing 102 .
  • the fluid channel assembly 101 is arranged inside the casing 102, and the inlet end 10a of the fluid channel 10 communicates with the suction port 102a, so that the sewage sucked from the suction port 102a can pass through the fluid channel 10, and the sensing device 20 in the fluid channel 10 can detect the pollution of the sewage for accurate sensing.
  • the cleaning machine 100 can be configured as a cleaning device in a corresponding form according to the functional requirements of different application scenarios to complete different cleaning functions, which is not limited in this embodiment of the present application.
  • the washing machine 100 provided in the embodiment of the present application has the above-mentioned fluid channel assembly 101, which can accurately judge the cleanliness of the area to be cleaned and accurately control the operating state of the washing machine 100 according to the judgment results.
  • the dependence of subjective observation and judgment can reduce the visual fatigue of users and improve the judgment accuracy of the cleanliness of the cleaned area.
  • it can increase the adaptability to dark and dark environments and visual blind spots, and improve cleaning efficiency and cleanliness.
  • the third it is possible to control the clean water output of the washing machine 100 according to the accurate judgment of the cleanliness degree, reduce the waste of water resources and reduce the frequency of replenishment/change of clean water.
  • the washing machine 100 can be provided with a sewage tank 103 and/or a clean water tank, and the sewage tank 103 is communicated with the outlet end 10b of the fluid passage 10; like this, the pouring frequency of the sewage tank 103 and the replenishment of the clean water tank can be reduced Frequency, reduce the user's labor burden.

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Abstract

提供一种清洗机（100）及流体通道组件（101），清洗机（100）包括：外壳（102）；流体通道组件（101），设置于外壳（102）的内部，包括流体通道（10）和感应装置（20）；感应装置（20）包括发射端（21）和接收端（22），发射端（21）和接收端（22）分别设置于流体通道（10）中相距最近的相对两侧侧壁，发射端（21）被配置为发出光信号，接收端（22）被配置为接收光信号。

Description

清洗机及流体通道组件 技术领域
本申请涉及智能家电技术领域，具体涉及一种清洗机及流体通道组件。
背景技术
清洗机是一种可以对地面或地毯表面等进行喷水清洗及污水回收的清洗机。在清洗过程中，用户需要实时观察判断被清洗区域的洁净程度，根据洁净程度的变化对清洗机的运行状态进行控制。受限于用户自身的视力条件和外在环境的干扰，用户对被清洗区域的洁净程度容易出现误判，进而对清洗机的运行状态造成干扰。
发明概述
本申请实施例提供一种清洗机及流体通道组件，可以对被清洗区域的洁净程度进行准确判断。
一方面，本申请实施例提供一种清洗机，其特征在于，包括：外壳；
流体通道组件，设置于所述外壳的内部，包括流体通道和感应装置；
所述感应装置包括发射端和接收端，所述发射端和所述接收端分别设置于所述流体通道中相距最近的相对两侧侧壁。
在一些实施例中，所述流体通道包括第一局部段，所述第一局部段具有沿第一方向依次设置且相互连通的主通流部和子通流部，所述第一方向和所述第一局部段的延伸方向垂直，所述子通流部具有相对设置的第一侧壁和第二侧壁，所述主通流部中任意相对两侧侧壁之间的距离大于所述第一侧壁和所述第二侧壁之间的距离；所述发射端设置于所述第一侧壁上，所述接收端设置于所述第二侧壁上。
在一些实施例中，所述第一侧壁和所述第二侧壁为所述子通流部中相距最近的相对两侧侧壁。
在一些实施例中，所述第一侧壁具有第一透光区，所述第二侧壁具有和所述第一透光区相对设置的第二透光区，所述发射端设置于所述第一透光区远离 所述第二透光区的一侧，所述接收端设置于所述第二透光区远离所述第一透光区的一侧水流。
在一些实施例中，所述第一侧壁和所述第二侧壁之间的距离不大于12mm。
在一些实施例中，所述第一侧壁和所述第二侧壁之间的距离不小于6mm。
在一些实施例中，所述子通流部设置于所述主通流部上除底侧外的任意一侧。
在一些实施例中，所述子通流部沿所述第一方向和所述主通流部保持连通。
在一些实施例中，所述第一局部段的延伸方向在第一平面内弯曲形成弧形；或者，所述第一局部段在第一柱状面内完全形成弧形。
在一些实施例中，所述第一局部段的出水端高于所述第一局部段的入水端。
在一些实施例中，所述第一局部段的出水端与所述流体通道的入口端的距离大于所述第一局部段的入水端与所述流体通道的入口端的距离。
在一些实施例中，所述主通流部形成于所述弧形构造的内侧区域，所述子通流部形成于所述弧形构造的外侧区域。
在一些实施例中，所述子通流部由以下任一方式形成：流体通道在第一局部段处的一侧侧壁的部分区域沿第一方向向流道外凸起形成子通流部；流体通道在第一局部段处的一侧侧壁的部分区域朝与该侧侧壁相对的另一侧壁凹陷形成子通流部；流体通道在第一局部段处的两相对侧壁的部分区域朝向彼此凹陷形成子通流部。
在一些实施例中，所述流体通道包括位于所述第一局部段和所述入口端之间的第二局部段，所述第二局部段的延伸方向在第一平面内弯曲形成弧形构造，所述主通流部和所述弧形构造的内侧连接、所述子通流部和所述弧形构造的外侧连接。
在一些实施例中，所述子通流部沿所述第一方向和所述主通流部保持隔离，所述子通流部接近所述入口端的一端和所述主通流部连通。
在一些实施例中，所述流体通道包括位于所述第一局部段下方的第三局部段，所述第三局部段在第二柱状面内弯曲形成弧形构造后和所述第一局部段的下端连接，所述第一局部段与第三局部段不在同一平面内。
在一些实施例中，所述第三局部段形成于所述第一局部段和所述入口端之间，所述第三局部段的最低点低于第一局部段。
在一些实施例中，所述第三局部段形成于所述第一局部段和所述入口端之间；和/或，所述第三局部段形成于所述流体通道的底部区域。
在一些实施例中，所述入口端在所述出口端所在平面的正投影和所述出口端不相交叠。
另一方面，本申请实施例提供一种清洗机，其特征在于，包括：外壳；流体通道组件，设置于所述外壳的内部，包括流体通道和感应装置；所述流体通道包括第一局部段，所述第一局部段具有沿第一方向依次设置且相互连通的主通流部和子通流部，所述第一方向和所述第一局部段的延伸方向垂直，所述子通流部具有相对设置的第一侧壁和第二侧壁，所述主通流部中任意相对两侧侧壁之间的距离大于所述第一侧壁和所述第二侧壁之间的距离；所述感应装置设置在所述子通流部。
另一方面，本申请实施例提供一种流体通道组件，其特征在于，包括：
流体通道，具有入口端和出口端；
感应装置，包括发射端和接收端，所述发射端和所述接收端分别设置于所述流体通道中相距最近的相对两侧侧壁。
本申请实施例提供的流体通道组件通过在流体通道的相对两侧分别设置发射端和接收端，由发射端发出光信号和由接收端接收发射端发出的光信号，在发射端和接收端之间的区域有水流经过时，发射端发出的光信号需要穿透水流才能被接收端接收，而光信号在水流中的穿透率和水流的脏污度负相关，可以根据光信号在水流中的穿透率确定水流的脏污度；这样，在通过流体通道对被清洗区域的污水进行回收时，可以根据发射端发出的光信号量和接收端接收到的光信号量确定光信号在水流中的穿透率和水流的脏污度，进而对被清洗区域的洁净程度进行准确判断以及根据判断结果对清洗机的运行状态进行精确控制，一方面可以摆脱对用户的主观观察判断的依赖性、减少用户的视觉疲劳和提高对被清洗区域的洁净程度的判断精度，另一方面可以增加对昏暗漆黑环境和视觉盲区的适应性、提高清洁效率和洁净程度，第三方面可以根据对洁净 程度的准确判断控制清洗机的洁净水出水量、减少水资源浪费和降低洁净水的补水/换水频率。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一些实施例提供的流体通道组件的一种结构的横截面视图；
图2是图1中流体通道组件在不同水量下检测到的脏污度的数值曲线图；
图3是本申请一些实施例提供的流体通道组件的另一种结构的横截面视图；
图4是本申请一些实施例提供的流体通道组件的又一种结构的横截面视图；
图5是本申请一些实施例提供的流体通道组件的又一种结构的横截面视图；
图6是本申请一些实施例提供的流体通道组件的又一种结构的横截面视图；
图7是本申请一些实施例提供的流体通道组件的又一种结构的轴测视图；
图8是图7中流体通道组件的沿横截面的剖视视图；
图9是图7中流体通道组件的沿纵截面的剖视视图；
图10是本申请一些实施例提供的流体通道组件的又一种结构的俯视视图；
图11是图10中流体通道组件的左视视图；
图12是本申请一些实施例提供的流体通道组件的再一种结构的俯视视图；
图13是图3～11中流体通道组件在不同水量下检测到的脏污度的数值曲线图；
图14是本申请一些实施例提供的清洗机的局部结构图。
本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本申请中“适用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
在本申请中，“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本申请，给出了以下描述。在以下描述中，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本申请。在其它实例中，不会对公知的结构和过程进行详细阐述，以避免不必要的细节使本申请的描述变得晦涩。因此，本申请并非旨在限于所示的实施例，而是与符合本申请所公开的原理和特征的最广范围相一致。
如图1所示，第一方面，本申请实施例提供一种流体通道组件101，该流体通道组件101包括流体通道10和感应装置20，可以对被清洗区域的洁净程度进行准确判断。
如图7所示，流体通道10可以具有入口端10a和出口端10b，入口端10a和出口端10b连通。这里，流体通道10可以是各类清洁设备的污水回收通道的全部或部分段落；被回收的污水可以从入口端10a进入流体通道10，经出口端10b进一步流向诸如污水箱103等污水收集装置或排污管等污水排放装置。被回收 的污水可以是对被清洗区域进行清洗后、在被清洗区域上形成的废水，也可以是清洗区域上原已残留的脏污液体。在一些示例中，流体通道10可以具有负压，使被回收的污水定向地从入口端10a流入和从出口端10b流出。
感应装置20用于检测水流的脏污度，其可以包括发射端21和接收端22，发射端21和接收端22分别设置于流体通道10的相对两侧侧壁。亦即，发射端21设置于流体通道10的一侧侧壁上，而接收端22设置于流体通道10中和该侧侧壁相对设置的一侧侧壁上，使流体通道10中的流体可以从发射端21和接收端22之间的区域通过。发射端21被配置为发出信号，接收端22被配置为接收发射端21发出的信号、并转换为相应的电信号。这里，感应装置20为传感器，在一些实施例中，感应装置20可以采用光电传感器，光信号的类型可以根据实际需要决定，可以采用可见光、红外光等类型，本申请实施例对此不作限定。在另一些实施例中，感应装置20也可以为电容式传感器、电流式传感器、全反射式传感器等，感应装置20设置在流体通道10的最窄处和/或弧形弯曲部。具体方式如下述记载。
在发射端21和接收端22之间的区域有水流经过时，发射端21发出的光信号需要穿透水流才能被接收端22所接收。这里，光信号在水流中的穿透率和水流的脏污度具有负相关关系。在水流比较洁净清澈即脏污度较小时，水流中不含有脏污颗粒或含有极少的脏污颗粒，发射端21发出的全部或绝大部分光信号能够穿透水流而被接收端22所接收，光信号的在水流中的穿透率较高；随着水流中的脏污颗粒含量增加，水流的脏污度逐渐增加，发射端21发出的部分光信号会被脏污颗粒阻挡而无法到达接收端22、使光信号在水流中的穿透率逐渐降低；在水流的脏污度超过某一阈值时，发射端21发出的全部光信号均无法穿透水流，使得接收端22能够接收到的光信号为零或接近于零。这样，可以根据光信号在水流中的穿透率，对水流的脏污度进行较为准确的定量测定。
在通过流体通道10对被清洗区域的污水进行回收时，可以根据发射端21发出的光信号量和接收端22接收到的光信号量确定光信号在水流中的穿透率，根据光信号的在水流中的穿透率确定水流的脏污度，从而对被清洗区域的洁净程度进行准确判断以及根据判断结果对清洗机的运行状态进行精确控制。和相 关技术相比，第一方面，本申请实施例提供的流体通道组件101可以摆脱对用户的主观观察判断的依赖性、减少用户的视觉疲劳，提高对被清洗区域的洁净程度的判断精度；第二方面，对处于昏暗漆黑环境或视觉盲区的被清洗区域，本申请实施例提供的流体通道组件101也可以对这些区域的洁净程度进行准确检测判断，进而控制清洗机对这些区域进行准确清洗，可以增加对昏暗漆黑环境和视觉盲区的适应性、提高清洁效率和洁净程度；第三方面，基于本申请实施例提供的流体通道组件101，可以根据对被清洗区域的洁净程度及其变化的准确判断，精确控制清洗机的洁净水出水量，使洁净水出水量和被清洗区域的当前洁净程度相匹配，减少水资源浪费、降低洁净水的消耗速度和补水/换水频率，可以达到降低用户的负担、提升用户使用便利性的效果。
水在流体通道10内流动时，会形成具有一定厚度的水流；而对于在发射端21和接收端22之间的区域通过的水流，可以将该水流沿自发射端21接近所述接收端22的方向的厚度定义为该水流的厚度。研究发现，发射端21发出的光信号可以穿透的水流厚度是有限的，和感应装置20的检测距离范围设计值有关；感应装置20的检测距离范围设计值越大，则光信号所能穿透的水流厚度越大，而感应装置20的造价相应增加。如图1～2所示，在流体通道10中的水流量较大(以下简称大水量)时，发射端21和接收端22之间的水流厚度会相应增加；若该水流的实际厚度超过发射端21发出的光信号所能穿透的最大水流厚度，即使该水流为不含脏污颗粒的洁净水流，发射端21发出的光信号也无法穿透该水流、使接收端22接收不到光信号，从而导致感应装置20感应失效、对水流的脏污度错误识别或无法识别，进而造成对被清洗区域的脏污程度的误判。这里，可以将光信号所能穿透的最大水流厚度定义为，发射端21发出的光信号所能穿透的洁净水流的最大厚度；在该厚度条件下，发射端21发出的光信号能够穿透该厚度的洁净水流、被接收端22所接收。光信号所能穿透的最大水流厚度和光信号对洁净水的穿透能力正相关，属于光信号的自身特性，可以通过实验确定；对于具有相同波长的光信号而言，其所能穿透的洁净水流的最大厚度是固定的；而不同波长的光信号所能穿透的洁净水流的最大厚度则是不同的，在具有水穿透能力的光信号中，波长较大者所能穿透的洁净水流的最大厚度较小，而波长较 小者所能穿透的洁净水流的最大厚度较大。补充说明，图2中的横轴为时间轴，其单位为秒(s)；纵轴为感应装置20的脏污度检测值，可以以电压值的形式表现，其单位为毫伏(mV)。
发射端21和接收端22可以设置于流体通道10的任意相对两侧侧壁上，本申请实施例对此不作限定，发射端21和接收端22所在的直线与该相对两侧侧壁垂直，以正确测量水流的厚度。在一些实施例中，发射端21和接收端22可以设置在流体通道10中相距最近的相对两侧侧壁上，亦即这两个相对设置的侧壁之间的距离在流体通道10的任意相对两侧侧壁的距离中最小、使流体通道10中位于这两个相对设置的侧壁之间的区域为流体通道10的最窄处。这样，发射端21和接收端22可以设置在流体通道10的最窄处，在流体通道10满流量回收污水时，流体通道10中的水流在发射端21和接收端22之间取得最小厚度，检测距离范围设计值较小的感应装置20也能实现对水流的脏污度识别，降低所需采用的感应装置20的精度等级和器件成本，降低清洗机的整机成本和市售价格。在一些示例中，可以将流体通道10中相距最近的相对两侧侧壁之间的距离配置为使发射端21和接收端22之间的距离不大于光信号所能穿透的最大水流厚度。在一些实施例中，发射端21和接收端22可以设置于流体通道10沿上下方向相对设置的两侧侧壁上，在流体通道10中的水流量较小时，水仍能流经发射端21和接收端22之间，避免出现在水流量较小(以下简称小水量)时由于无水流在发射端21和接收端之间经过、而使感应装置20无法对污水的脏污度进行感测识别的意外，可以对小水量污水的脏污度进行有效识别。
流体通道10的构造可以根据实际需要决定，本申请实施例对此不作限定。如图3～6所示，在一些实施例中，流体通道10包括第一局部段11，第一局部段11包括主通流部111和子通流部112，子通流部112位于主通流部111的侧边。图3～6为第一局部段11的横截面剖视图。第一局部段11具有沿第一方向依次设置且相互连通的主通流部111和子通流部112，第一方向和第一局部段11的延伸方向(即水流的主流动方向)相垂直，或者，第一方向为第一局部段11在感应装置安装处的法线方向，相应地，第一方向位于流体通道10的横截面上，使在流体通道10沿其延伸方向的至少一个局部段形成主通流部111和子通流部112并 排设置的构造。在一些示例中，流体通道10可以仅由一个局部段组成，该局部段即为第一局部段11；在另一些示例中，流体通道10可以包括多个局部段，其中一个局部段为第一局部段11。
这里，子通流部112可以具有相对设置的第一侧壁112a和第二侧壁112b，主通流部111中任意相对两侧侧壁之间的距离大于第一侧壁112a和第二侧壁112b之间的距离，相应地，子通流部112的流道厚度小于主通流部111的流道厚度，流体通道10的最窄处位于子通流部112内。发射端21可以设置于第一侧壁112a上，而接收端22可以设置于第二侧壁112b上，使得发射端21和接收端22之间的水流厚度小于主通流部111中的水流厚度。在另一些实施例中，感应装置20也可以为电容式传感器、电流式传感器、全反射式传感器等。感应装置20设置在子通流部112。
这里，主通流部111的通流面积可以大于子通流部112的通流面积。这样，主通流部111可以作为流体通道10的主通流区，容许较大流量的水流和较大厚度的水流通过，减少对流体通道10的流量上限的约束，可以在对脏污程度较高的被清洗区域进行大水量快速清洗时，满足大水量污水的回收需要，提高清洗效率。而子通流部112可以作为流体通道10的感应通流区，将通过子通流部112的水流流量和水流厚度限制在较小范围内，使得污水在经过第一侧壁112a和第二侧壁112b之间的区域而形成水流时，水流的脏污度能够被感应装置20所识别检测。在需要进行大水量污水回收时，可以使大部分污水通过主通流部111进行回收，满足大水量污水的回收需要；同时，可以迫使少量污水进入子通流部112，由设置于子通流部112的感应装置20对污水的脏污度进行识别检测，满足大水量污水回收条件下的脏污度感测需要，避免发生感应装置20感应失效、对水流的脏污度错误识别或无法识别的情形，保证对对被清洗区域的脏污程度的准确判断。
主通流部111的通流面积和子通流部112的通流面积之比可以根据实际需要决定，例如可以为大于1的正数，本申请实施例对此不作限定。在一些示例中，主通流部111的通流面积可以是子通流部112的通流面积的数倍乃至数十倍，使得主通流部111的最大流量远大于子通流部112的最大流量。
第一侧壁112a和第二侧壁112b之间的距离可以根据实际需要决定，本申请实施例对此不作限定。在一些示例中，第一侧壁112a和第二侧壁112b之间的距离可以被配置为不大于光信号所能穿透的最大水流厚度。这样，子通流部112中位于第一侧壁112a和第二侧壁112b之间的区域在满载水流时，该水流形成的水流厚度也不会超过光信号所能穿透的最大水流厚度，使得发射端21发出的光信号仍能穿透该水流而被接收端22所接收。这样，可以保证第一侧壁112a和第二侧壁112b之间满载污水而形成最大厚度的污水水流时，感应装置20仍能实现对水流的脏污度的识别检测。
第一侧壁112a和第二侧壁112b可以是子通流部112中的任意相对两侧侧壁，本申请实施例对此不作限定。在一些示例中，第一侧壁112a和第二侧壁112b可以是子通流部112中相距最近的相对两侧侧壁，使得子通流部112中位于第一侧壁112a和第二侧壁112b之间的区域为子通流部112的最窄处，相应地，该区域也是流体通道10的最窄处。这样，发射端21和接收端22可以设置在流体通道10的最窄处，在流体通道10中充满污水时，流体通道10中少量污水被迫进入子通流部112中、并在第一侧壁112a和第二侧壁112b之间形成最小厚度的水流；相应地，水流在发射端21和接收端22之间取得最小厚度，检测距离范围设计值较小的感应装置20也能实现对水流的脏污度识别，降低所需采用的感应装置20的精度等级和器件成本，降低清洗机的整机成本和市售价格。
这里，发射端21和接收端22可以设置在子通流部112的不同位置，例如可以设置在子通流部112的相对两侧侧壁之间、或者可以设置在子通流部112的外周面上等，本申请实施例对此不作限定。
在一些示例中，第一侧壁112a可以具有第一透光区，第二侧壁112b可以具有和第一透光区相对设置的第二透光区；发射端21可以设置于第一透光区远离第二透光区的一侧，即设置于所述第一透光区的外壁面，接收端22可以设置于第二透光区远离第一透光区的一侧，即设置于所述第二透光区的外壁面。将所述发射端21和所述接收端22设置于第一侧壁112a和第二侧壁112b的外壁面，有利于保护传感器20免受水流和水汽的影响，延长传感器20的使用寿命，且在安装传感器20的第一侧壁112a和第二侧壁112b的相位部位设置成透光区，这样， 发射端21发出的光信号可以穿过第一透光区和第二透光区而到达接收端22，被接收端22所接收。示例性的，所述透光区的实现方式之一是采用透明材料制成。另外，为了制作方便，第一局部段11可以采用透明材料制成，甚至，更进一步地，流体通道10可以采用透明材料制成。这里，第一透光区和第二透光区之间的距离可以被配置为不大于光信号所能穿透的最大水流厚度，使得第一透光区和第二透光区之间可能存在的水流的厚度不会超过光信号所能穿透的最大水流厚度，发射端21发出的光信号始终能够穿透该水流而被接收端22所接收。这样，可以保证第一侧壁112a和第二侧壁112b之间满载污水而形成最大厚度的污水水流时，感应装置20仍能实现对水流的脏污度的识别检测。当然，在另一些示例中，发射端21可以设置于第一侧壁112a面向第二侧壁112b的一侧表面，即设置于第一侧壁112a的内壁面，接收端22可以设置于第二侧壁112b面向第一侧壁112a的一侧表面，即设置于第二侧壁112b的内壁面。此种情况下，第一侧壁112a上设置有发射端21的相应部位和第二侧壁112b上设置有接收端22的相应部位可以设置成透光区，也可以设置成非透光区。这里，发射端21和接收端22之间的距离小于第一侧壁112a和第二侧壁112b之间的距离，使子通流部112中的最窄处位于发射端21和接收端22之间的区域；相应地，第一侧壁112a和第二侧壁112b之间的距离可以被配置为，使发射端21和接收端22之间的距离不大于光信号所能穿透的最大水流厚度。
第一侧壁112a和第二侧壁112b之间的距离的上限值和下限值可以根据实际需要决定，本申请实施例对此不作限定。在优选示例中，第一侧壁112a和第二侧壁112b之间的距离不大于12mm；这样，可以采用检测距离范围设计值较小而成本较低的感应装置20进行脏污度识别检测，降低器件成本、整机成本和市售价格。在优选示例中，第一侧壁112a和第二侧壁112b之间的距离不小于6mm；这样，可以保证常见的脏污颗粒顺利通过子通流部112而不受阻碍，避免脏污颗粒堆积堵塞子通流部112。
优选地，第一侧壁112a和第二侧壁112b之间的距离为6～12mm，例如是6mm、6.2mm、6.5mm、6.8mm、7mm、7.3mm、7.6mm、7.9mm、8mm、8.2mm、8.6mm、8.8mm、9mm、9.1mm、9.4mm、9.7mm、10mm、10.2mm、10.4mm、10.8mm、 11mm、11.1mm、11.3mm、11.5mm、11.7mm或12mm等。在该范围内，一方面可以采用检测距离范围设计值较小而成本较低的感应装置20进行脏污度识别检测，降低器件成本、整机成本和市售价格；另一方面可以保证常见的脏污颗粒顺利通过子通流部112而不受阻碍，避免脏污颗粒堆积堵塞子通流部112。
子通流部112可以设置于主通流部111的任意一侧或多侧，本申请实施例对此不作限定。如图5～6所示，在一些实施例中，子通流部112可以设置于主通流部111上除底侧外的任意一侧，亦即使子通流部112不设置于流体通道10的底部区域，子通流部112的最低点高于主通流部111的最低点。一方面，在流体通道10中的水流量较小时，污水的流速较小，污水中的脏污颗粒容易向下沉积在流体通道10的底部区域；由于子通流部112不设置于流体通道10的底部区域，脏污颗粒不会沉积到子通流部112内，可以避免子通流部112被沉积的脏污颗粒堵塞失效，也可以避免脏污颗粒附着在子通流部112、遮挡发射端21和接收端22所引起的感应失效。另一方面，在流体通道10存在负压而流体通道10中的水流量较小时，水量较小的污水受到负压作用而较为集中于流体通道10的横截面内的中上部区域、不会经过流体通道10的底部区域，若子通流部112设置于流体通道10的底部区域，可能会在小水量时由于无水流经过而无法对污水的脏污度进行感测识别；本申请实施例的子通流部112不设置于流体通道10的底部区域，可以对小水量污水的脏污度进行有效识别。
子通流部112的形成方式可以根据实际需要决定，本申请实施例对此不作限定。在一些实施例中，流体通道10在某一局部段处的一侧侧壁的部分区域可以沿第一方向向流道外凸起形成子通流部112，使子通流部112突出于流体通道10的其他区域，从而在该局部段处形成主通流部111和子通流部112，也即子通流部112凸出于主通流部，子通流部112相比流体通道10的其他区域向通道外凸出。在另一些实施例中，流体通道10在某一局部段处的一侧侧壁可以朝与该侧侧壁相对的另一侧壁凹陷形成子通流部112；在又一些实施例中，流体通道10在某一局部段处的两相对侧壁第一方向朝向彼此凹陷形成子通流部112；在又一些实施例中，如图7、8所示，流体通道10在某一局部段处的一侧侧壁的部分区域朝与该侧侧壁相对的另一侧壁凹陷形成子通流部112；在又一些实施例中， 流体通道10在某一局部段处的两相对侧壁的部分区域朝向彼此凹陷形成子通流部112。也即，第一局部段11的子通流部112的一侧侧壁相比流体通道10的其余段处的同一侧侧壁向流道内凹陷；或者，第一局部段11的子通流部112的两侧侧壁相比流体通道10的其余段处的两侧侧壁向流道内凹陷。
主通流部111和子通流部112之间的连接结构可以根据实际需要决定，本申请实施例对此不作限定。如图3、5、7～9所示，在一些实施例中，子通流部112沿第一方向和主通流部111保持连通。换言之，子通流部112沿第一方向的一侧和主通流部111之间在部分区域或全部区域不存在隔离结构而保持连通，使流体可以沿第一方向在子通流部112和主通流部111之间发生流动。相应地，污水在流经流体通道10时，可以较为轻易地进入子通流部112内，保证子通流部112的感应装置20使能感测。
第一局部段11的形状可以根据实际需要决定，可以采用诸如弧形、直线形或其他异形形状，本申请实施例对此不作限定。在一些示例中，第一局部段11形成弧形构造，第一局部段11的流出端至少与第一局部段11的流入端在同一水平面上，优选地，第一局部段11的流出端高于第一局部段11的流入端，子通流部112相对于主通流部111位于弧形外侧，这样，主通流部111位于弧形构造的内侧、子通流部112位于弧形构造的外侧；这里，子通流部112可以沿第一方向和主通流部111保持连通，第一方向为第一局部段11在感应装置20处的法线方向第一方向。这里，主通流部111可以形成于弧形构造的内侧区域，而子通流部112可以形成于弧形构造的外侧区域。第一方面，在被回收的污水经过第一局部段11时，污水由于第一局部段11的弧形形状而受到离心力作用，离心力使污水具有沿第一方向趋近子通流部112的离心运动趋势；这样，可以保证污水即使是小水量也始终能够被送入子通流部112内，由设置于子通流部112的感应装置20对污水的脏污度进行识别检测，实现对被清洗区域的脏污程度的准确判断。第二方面，包含脏污颗粒的水流在沿具有弧形形状的第一局部段11流动时，会产生有规律的伴随运动；在涡流拖拽力和流体惯性力的作用下，污水中的脏污颗粒会在第一局部段11的横截面内发生垂直于主流动方向的迁移行为，使较大的脏污颗粒集中于弧形形状的内侧即主通流部111内、较小的脏污颗粒集中 于弧形形状的外侧即子通流部112内，实现大小颗粒的分离和聚集。这样，进入子通流部112的脏污颗粒较小、而使大颗粒脏污主要保留在主通流部111内，可以防止子通流部112被堵塞，保证子通流部112的感测识别功能正常使能。
第一局部段11的延伸方向可以是在第一平面上的弧形结构，也可以是第一局部段11为第一柱状面上的弧形结构。参见图14，当第一局部段11的延伸方向是在第一平面上的弧形结构时，所述第一平面可以为任意平面，优选地，所述第一平面可以为与所述滚刷的轴向平行的平面。所述第一平面可以为水平面，第一局部段11的流出端至少与第一局部段11的流入端在同一水平面上；优选地，所述第一平面与水平面具有一定的角度，所述角度为为锐角，第一局部段11的流出端高于第一局部段11的流入端，且第一局部段11的出口端到进水口10a的距离大于第一局部段11的进水端到进水口10a的距离。如图4、图6和图10所示，在一些实施例中，流体通道10可以包括位于第一局部段11和入口端10a之间的第二局部段12，第二局部段12的延伸方向可以在第一平面内弯曲形成弧形构造，主通流部111和弧形构造的内侧连接、而子通流部112和弧形构造的外侧连接。也即，子通流部112相对于主通流部111位于弧形的外侧。第一方面，在被回收的污水经过第二局部段12时，污水由于第二局部段12的弧形形状而受到离心力作用，离心力使污水具有沿主流动方向的垂直方向趋近弧形构造的外侧的运动趋势，进而在从第二局部段12进入第一局部段11时向子通流部112流动；这样，可以保证污水始终能够被送入子通流部112内，由设置于子通流部112的感应装置20对污水的脏污度进行识别检测，实现对被清洗区域的脏污程度的准确判断。第二方面，包含脏污颗粒的水流在沿具有弧形形状的第二局部段12流动时，会产生有规律的伴随运动；在涡流拖拽力和流体惯性力的作用下，污水中的脏污颗粒会在第二局部段12的横截面内发生垂直于主流动方向的迁移行为，使较大的脏污颗粒集中于弧形形状的内侧并继续流动进入主通流部111内、较小的脏污颗粒集中于弧形形状的外侧并继续流动进入子通流部112内，实现大小颗粒的分离和聚集。这样，进入子通流部112的脏污颗粒较小、而使大颗粒脏污主要保留在主通流部111内，可以防止子通流部112被堵塞，保证子通流部112的感测识别功能正常使能。
在这里，也即，感应装置20设置在第一局部段11，第一局部段11可以为弧形，或者，第一局部段11为连接于弧形段的第四局部段，第四局部段位于弧形段的下游，第四局部段距离弧形段的距离优选不超过1cm，使得在第四局部段处的水流能保持离心力的惯性作用。
在一些示例中，子通流部112可以沿第一方向和主通流部111保持隔离，而子通流部112接近入口端10a的一端可以和主通流部111连通。换言之，子通流部112和主通流部111之间设有将二者沿第一方向完全隔离的隔离部112c。这样，从入口端10a进入流体通道10的污水，可以在隔离部112c的分流作用下分流，使其中的大部分水量进入主通流部111、少部分水量进入子通流部112。在一些示例中，子通流部112远离入口端10a的一端可以和主通流部111连通，使经过感应装置20感测后的污水可以重新汇流到主通流部111，进而流向出口端10b，使子通流部112的流路顺畅。在另一些示例中，子通流部112远离入口端10a的一端也可以和主通流部111彼此独立，子通流部112和主通流部111通过不同的出口端10b将其中的污水排出流体通道10外。隔离部112c和第一侧壁112a、第二侧壁112b的关系可以根据实际需要决定，本申请实施例对此不作限定。在一些示例中，隔离部112c可以由第一侧壁112a和第二侧壁112b中的一者充当，相应地，该侧壁形成于主通流部111和子通流部112之间。
在另一些示例中，子通流部112可以沿第一方向和主通流部111保持连通。换言之，子通流部112沿第一方向的一侧和主通流部111之间在部分区域或全部区域不存在隔离结构而保持连通，使流体可以沿第一方向在子通流部112和主通流部111之间发生流动。
如图12所示，在一些示例中，子通流部112和主通流部111之间可以设有弧形导流部，弧形导流部沿主流动方向延伸；这里，弧形导流部可以是导流筋，也可以是导流壁，本申请实施例对此不作限定。第一局部段11的形状可以根据实际需要决定，可以采用诸如弧形、直线形或其他异形形状，本申请实施例对此不作限定。弧形导流筋具有弧形结构，可以使从入口端10a进入流体通道10的污水受到离心力作用而导向弧形导流筋壁面，流体通道10的一侧侧壁在弧形导流筋处的部分区域朝向另一相对侧壁凹陷，凹陷区域和另一侧壁上与凹陷区 域相对的部分用于安装感应装置20；或者，流体通道10的两相对侧壁在弧形导流筋处的部分区域朝向彼此凹陷，相对的凹陷部分用于安装感应装置20。
如图7和9所示，在一些实施例中，流体通道10包括位于第一局部段11下方的第三局部段13，第三局部段13为第二柱状面上的弧形结构，，第三局部段13的流出端与第一局部段11的流入端连接，第三局部段13的流出端低于第一局部段11的流入端。第一方向第三局部段13与第一局部段11不在一个平面内。一方面，子通流部112的下方设有第三局部段13，可以确保子通流部112所在位置高于流体通道10的底部区域，也即子通流部112的最低点高于第三局部段13的最低点，在一些实施例中，第三局部段13的最低点为流体通道10的最低点；这样，脏污颗粒不会沉积到子通流部112内，可以避免子通流部112被沉积的脏污颗粒堵塞失效以及脏污颗粒附着在子通流部112、遮挡发射端21和接收端22所引起的感应失效。另一方面，由于该弧形构造的内侧位于第三局部段13的上侧区域、而该弧形构造的外侧位于第三局部段13的底侧区域，可以利用第三局部段13的弧形形状使污水受到离心作用而具有离心运动趋势，使污水向第三局部段13的底侧区域挤压、底侧区域的流速加快而裹挟脏污颗粒快速移动；这样，脏污颗粒不易在第三局部段13的底侧区域沉积，可以降低第三局部段13的堵塞风险和位于第三局部段13上方的第一局部段11的继发堵塞风险。此外，还可以利用第三局部段13的弧形形状使污水产生较大的流体惯性力和涡流拖拽力，该流体惯性力和涡流拖拽力作用于污水中的脏污颗粒、使脏污颗粒在第三局部段13的横截面内发生垂直于主流动方向的迁移行为，大小颗粒可以在第三局部段13进行初步分离和聚集，避免大小颗粒混杂而造成子通流部112的堵塞。
第三局部段13可以形成于流体通道10的不同位置，本申请实施例对此不作限定。在一些示例中，第三局部段13可以形成于第一局部段11和入口端10a之间；这样，污水需要首先通过第三局部段13，在经过上述作用调理后进入第一局部段11，使进入第一局部段11的污水处于较佳的待感测状态，增加感应装置20对被清洗区域的脏污度的感测精度。在一些示例中，第三局部段13可以形成于流体通道10的底部区域；这样，可以利用上述的第三局部段13的作用效果，降低脏污颗粒在流体通道10的底部区域沉积而引起的堵塞风险。在一些实施例 中，参照图9、14，第三局部段13由前向后延伸，所述由前向后的方向为与前进方向相反的方向，也即为从滚刷朝向电机的方向。
在一些子通流部112沿第一方向和主通流部111保持连通且第一局部段11的延伸方向在第一平面内弯曲形成弧形构造的示例中，第一局部段11与第三局部段13不在一个平面内；在第一局部段11为在第一柱状面内的弧形构造时，第一局部段11和第三局部段13在不同的柱状面内。这样，第三局部段13和第一局部段11可以发挥不同的作用，先后地作用于污水及其中的脏污颗粒，实现上述相应技术效果的总和效果。
在一些子通流部112沿第一方向和主通流部111保持连通、且第一局部段11的延伸方向在第一平面内曲形成弧形构造的示例中，第三局部段13可以在两个平面内发生弯曲扭转。亦即，第三局部段13的延伸方向可以分别在第一平面内向下弯曲和在第二平面内向下弯曲，第一平面和第二平面垂直；主通流部111和第三局部段13在第一平面内弯曲形成的弧形构造的内侧连接、而子通流部112和该弧形构造的外侧连接，且该弧形构造和第一局部段11在第一平面内弯曲形成的弧形构造圆滑连接成一连续的弧形构造。这样，该连续的弧形构造可以发挥如第一局部段11的弧形构造的作用，亦即：第一方面，在被回收的污水经过第三局部段13和第一局部段11时，污水由于该连续的弧形构造而受到离心力作用，离心力使污水在第三局部段13具有沿主流动方向的垂直方向趋近弧形构造的外侧的运动趋势、在第一局部段11具有沿第一方向趋近子通流部112的离心运动趋势；这样，可以利用连续两个弧形构造的离心作用，保证污水始终能够被送入子通流部112内，由设置于子通流部112的感应装置20对污水的脏污度进行识别检测，实现对被清洗区域的脏污程度的准确判断。第二方面，包含脏污颗粒的水流在沿具有弧形形状的第三局部段13和第一局部段11流动时，会产生有规律的伴随运动；在涡流拖拽力和流体惯性力的作用下，污水中的脏污颗粒会在第三局部段13和第一局部段11的横截面内分别发生垂直于主流动方向的迁移行为，使较大的脏污颗粒集中于弧形形状的内侧即主通流部111内、较小的脏污颗粒集中于弧形形状的外侧即子通流部112内，实现大小颗粒的分离和聚集。这样，进入子通流部112的脏污颗粒较小、而使大颗粒脏污主要保 留在主通流部111内，可以防止子通流部112被堵塞，保证子通流部112的感测识别功能正常使能。
如图10～11所示，在一些主通流部111和子通流部112之间设有隔离部112c、且流体通道10包括第二局部段12的示例中，第二局部段12和第三局部段13可以作为一个结构实现。亦即，第二局部段12的延伸方向同时在第一平面内弯曲形成弧形构造和在第二平面内向下弯曲形成弧形构造，并和第一局部段11的下端连接。这样，第二局部段12可以在两个平面内发生弯曲扭转，可以实现两种弯曲结构的上述技术效果的总和效果。
流体通道10的形状可以根据实际需要决定，可以采用诸如弧形、直线形、其他异形形状或以上形状之间的组合形状，本申请实施例对此不作限定。在一些实施例中，入口端10a在出口端10b所在平面的正投影和出口端10b不相交叠，使入口端10a和出口端10b形成错位，同时，所述入口端10a和出口端10b在左右方向上错位，参见图14，即在滚刷轴向的方向上，所述入口端10a和出口端10b错位设置。这样，流体通道10整体或其中的至少一个局部段可以进行较大程度的弯曲而具有较为充足的曲线形状，使得上述对子通流部112的污水送入作用和对大小颗粒的分离聚焦作用比较充分，保证子通流部112发挥较佳的脏污度感测效果。
为了验证本申请实施例提供的流体通道组件在不同水量下对脏污度的感测效果，将同种污水分别以1050ml/min、515ml/min、367ml/min的流量输入如图3～12中的流体通道10中，由感应装置20对污水的脏污度进行检测，可以得到如图10所示的数值曲线。其中，横轴为时间轴，其单位为秒(s)；纵轴为感应装置20的脏污度检测值，可以以电压值的形式表现，其单位为毫伏(mV)。如图13所示，在不同水量下，流体通道组件101测量得到的脏污度数值基本一致，符合设计精度要求。
如图14所示，第二方面，本申请实施例提供一种清洗机100，包括外壳102和以上任一实施例所述的流体通道组件101。外壳102上设有吸口102a，可以将被清洗区域表面的污水吸入外壳102内部。流体通道组件101设置于外壳102的内部，流体通道10的入口端10a和吸口102a连通，使从吸口102a吸入的污水可 以经过流体通道10，由流体通道10中的感应装置20对污水的脏污度进行准确感测。清洗机100可以根据不同应用场景的功能需要，配置为对应形式的清洗设备，完成不同的清洁功能，本申请实施例对此不作限定。
本申请实施例提供的清洗机100具有上述的流体通道组件101，可以对被清洗区域的洁净程度进行准确判断以及根据判断结果对清洗机100的运行状态进行精确控制，一方面可以摆脱对用户的主观观察判断的依赖性、减少用户的视觉疲劳和提高对被清洗区域的洁净程度的判断精度，另一方面可以增加对昏暗漆黑环境和视觉盲区的适应性、提高清洁效率和洁净程度，第三方面可以根据对洁净程度的准确判断控制清洗机100的洁净水出水量、减少水资源浪费和降低洁净水的补水/换水频率。在一些实施例中，清洗机100可以设有污水箱103和/或清水箱，污水箱103和流体通道10的出口端10b连通；这样，可以减少污水箱103的倒水频率和清水箱的补水频率，降低用户的劳动负担。
以上对本申请实施例所提供的一种清洗机及流体通道组件进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种清洗机，其特征在于，包括：
    外壳；
    流体通道组件，设置于所述外壳的内部，包括流体通道和感应装置；
    所述感应装置包括发射端和接收端，所述发射端和所述接收端分别设置于所述流体通道中相距最近的相对两侧侧壁。
  2. 根据权利要求1所述的清洗机，其特征在于，所述流体通道包括第一局部段，所述第一局部段具有沿第一方向依次设置且相互连通的主通流部和子通流部，所述第一方向和所述第一局部段的延伸方向垂直，所述子通流部具有相对设置的第一侧壁和第二侧壁，所述主通流部中任意相对两侧侧壁之间的距离大于所述第一侧壁和所述第二侧壁之间的距离；所述发射端设置于所述第一侧壁上，所述接收端设置于所述第二侧壁上。
  3. 根据权利要求2所述的清洗机，其特征在于，所述第一侧壁和所述第二侧壁为所述子通流部中相距最近的相对两侧侧壁。
  4. 根据权利要求3所述的清洗机，其特征在于，所述第一侧壁具有第一透光区，所述第二侧壁具有和所述第一透光区相对设置的第二透光区，所述发射端设置于所述第一透光区远离所述第二透光区的一侧，所述接收端设置于所述第二透光区远离所述第一透光区的一侧水流。
  5. 根据权利要求2-4中任一项所述的清洗机，其特征在于，所述第一侧壁和所述第二侧壁之间的距离不大于12mm。
  6. 根据权利要求2-4中任一项所述的清洗机，其特征在于，所述第一侧壁和所述第二侧壁之间的距离不小于6mm。
  7. 根据权利要求2所述的清洗机，其特征在于，所述子通流部设置于所述主通流部上除底侧外的任意一侧。
  8. 根据权利要求2所述的清洗机，其特征在于，所述子通流部沿所述第一方向和所述主通流部保持连通。
  9. 根据权利要求8所述的清洗机，其特征在于，所述第一局部段的延伸方向在第一平面内弯曲形成弧形；或者，所述第一局部段在第一柱状面内弯曲形 成弧形。
  10. 根据权利要求9所述的清洗机，其特征在于，所述第一局部段的出水端高于所述第一局部段的入水端。
  11. 根据权利要求9所述的清洗机，其特征在于，所述第一局部段的出水端与所述流体通道的入口端的距离大于所述第一局部段的入水端与所述流体通道的入口端的距离。
  12. 根据权利要求9所述的清洗机，其特征在于，所述主通流部形成于所述弧形构造的内侧区域，所述子通流部形成于所述弧形构造的外侧区域。
  13. 根据权利要求2所述的清洗机，其特征在于，所述子通流部由以下任一方式形成：
    流体通道在第一局部段处的一侧侧壁的部分区域沿第一方向向流道外凸起形成子通流部；
    流体通道在第一局部段处的一侧侧壁的部分区域朝与该侧侧壁相对的另一侧壁凹陷形成子通流部；
    流体通道在第一局部段处的两相对侧壁的部分区域朝向彼此凹陷形成子通流部。
  14. 根据权利要求2所述的清洗机，其特征在于，所述流体通道包括位于所述第一局部段和所述入口端之间的第二局部段，所述第二局部段在第一平面内弯曲形成弧形构造，所述主通流部和所述弧形构造的内侧连接、所述子通流部和所述弧形构造的外侧连接。
  15. 根据权利要求2所述的清洗机，其特征在于，所述子通流部沿所述第一方向和所述主通流部保持隔离，所述子通流部接近所述入口端的一端和所述主通流部连通。
  16. 根据权利要求2所述的清洗机，其特征在于，所述流体通道包括位于所述第一局部段下方的第三局部段，所述第三局部段在第二柱状面内弯曲形成弧形构造后和所述第一局部段的下端连接，所述第一局部段与第三局部段不在同一平面内。
  17. 根据权利要求16所述的清洗机，其特征在于，所述第三局部段形成于 所述第一局部段和所述入口端之间，所述第三局部段的最低点低于第一局部段。
  18. 根据权利要求2所述的清洗机，其特征在于，所述入口端在所述出口端所在平面的正投影和所述出口端不相交叠。
  19. 一种清洗机，其特征在于，包括：
    外壳；
    流体通道组件，设置于所述外壳的内部，包括流体通道和感应装置；
    所述流体通道包括第一局部段，所述第一局部段具有沿第一方向依次设置且相互连通的主通流部和子通流部，所述第一方向和所述第一局部段的延伸方向垂直，所述子通流部具有相对设置的第一侧壁和第二侧壁，所述主通流部中任意相对两侧侧壁之间的距离大于所述第一侧壁和所述第二侧壁之间的距离；所述感应装置设置在所述子通流部。
  20. 一种流体通道组件，其特征在于，包括：
    流体通道，具有入口端和出口端；
    感应装置，包括发射端和接收端，所述发射端和所述接收端分别设置于所述流体通道中相距最近的相对两侧侧壁。
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