Base and cleaning system

Abstract

The utility model relates to a base and a cleaning system, the base comprises a base main body, an infrared heating device and a rear scraping strip, and a cleaning tank is arranged on the base main body; the infrared heating device comprises an infrared emitter and a transmission part, the transmission part is located below the rolling brush, the infrared emitter is located below the transmission part, and at least part of infrared rays emitted by the infrared emitter can penetrate through the transmission part to be radiated to the rolling brush; the top face, facing the rolling brush, of the transmission piece is in interference contact with the rolling brush and is of a downwards-sunken curved surface structure, and the rear scraping strip is located behind the transmission piece and can make contact with the surface to be cleaned in the cleaning process of the cleaning equipment. The projection of the transmission piece and the projection of the rear scraping strip in the vertical direction are staggered. The projection of the rear scraping strip and the projection of the rolling brush in the vertical direction at least partially coincide, and the infrared rays penetrating through the transmission piece do not pass through the rear scraping strip. In this way, the ironing effect of the transmission part on the rolling brush can be further improved, meanwhile, the influence of heat radiation on the rear scraping strip can be effectively reduced, and overheating of the rear scraping strip is reduced or even avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a base and a cleaning system. Background Art

[0002] With the development of science and technology and the improvement of living standards, household cleaning equipment has become more and more popular, reducing the burden of human housework, such as sweeping robots, floor washing robots, and sweeping and mopping robots.

[0003] In the related technology, taking a floor scrubber as an example, after the floor scrubber is placed on the base after completing the cleaning work, it performs a self-cleaning action, which includes cleaning and drying the roller brush. During the drying process, the heated air around the electric heating element is blown to the surface of the roller brush through the air duct in the base by combining the electric heating element with a fan for drying. In this drying method, the hot air flow heated by the electric heating element has a significantly lower temperature after passing a certain distance to reach the roller brush, so that the roller brush is not heated enough during the drying process, affecting the drying effect of the roller brush bristles.

[0004] In order to solve the above situation, structures that use heat radiation components instead of electric heating elements as heat sources to dry the roller brush have begun to appear. However, such structures often have too high power, resulting in heat radiation intensity far higher than the tolerance level of the roller brush and other cleaning equipment components. Not only does it cause the roller brush to overheat and burn during drying, it also affects other components around the roller brush, such as the scraper strip and roller brush cover, which are deformed due to long-term heat and have a reduced lifespan. This makes the large-scale application of heat radiation components a problem that needs to be solved urgently. Utility Model Content

[0005] In view of the above problems, the embodiments of the present application provide a base and a cleaning system, which can heat the transmissive part by using an infrared emitter, and then utilize the interference contact between the transmissive part and the roller brush, the curved surface structure of the transmissive part, and the limitation of the relative position relationship between the rear scraper strip, the roller brush, and the transmissive part. While introducing the application of infrared heat source in the drying base, it not only improves the ironing effect of the transmissive part on the roller brush, which is beneficial to ensure the drying temperature and improve the drying effect during the drying stage, but also increases the safety and life of the roller brush and the parts around the roller brush.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] A first aspect of the present application provides a base, the base comprising:

[0008] A base body, the base body being provided with a cleaning groove for accommodating a roller brush of a cleaning device, the cleaning device being able to move along a preset travel direction on a surface to be cleaned;

[0009] The infrared heating device comprises an infrared emitter and a transmission member, wherein the transmission member is located below the roller brush, the infrared emitter is located below the transmission member, the infrared emitter is used to emit infrared rays, and at least part of the infrared rays can be radiated to the roller brush through the transmission member;

[0010] The top surface of the transmission member facing the roller brush is in interference contact with the roller brush, and is a curved surface structure concave downward;

[0011] The cleaning device further comprises a rear scraper located behind the transmission element, the rear scraper being able to contact the surface to be cleaned during the cleaning process of the cleaning device, and the projections of the transmission element and the rear scraper in the vertical direction are staggered; wherein the rear is opposite to the traveling direction;

[0012] The projections of the rear scraping strip and the roller brush in the vertical direction at least partially overlap, and the infrared rays passing through the transmission member do not pass through the rear scraping strip.

[0013] When infrared light penetrates the transmission part, the transmission part absorbs part of the infrared light and converts it into heat, causing its temperature to rise. The heated transmission part can iron the roller brush that is in interference contact with it. This ironing effect is beneficial to both the cleaning stage and the drying stage of the self-cleaning process. The technical solution of the embodiment of the present application can make the transmission part and the roller brush have as large a contact area as possible, thereby improving the ironing effect of the transmission part on the roller brush, which is beneficial to the shape recovery of the bristles after drying, making them more fluffy, and improving the subsequent cleaning effect.

[0014] Affected by factors such as the material of the transmission part and the difficulty of processing, it is difficult for the top surface of the transmission part to contact the roller brush completely. Moreover, in order to maintain a large contact area between the transmission part and the roller brush, the roller brush and the transmission part can be aligned in the center in the projection along the vertical direction. This results in the front and rear sides of the transmission part being basically not in contact with the roller brush bristles. Therefore, it is believed that the width of the transmission part has little effect on the ironing effect of the roller brush, and the width of the transmission part can be reduced as much as possible. But in fact, a transmission part that is as wide as possible is conducive to improving the ironing effect. For example: the position where the roller brush and the transmission part are aligned in the center in the vertical projection is recorded as the ideal position. Affected by the rotation of the roller brush, external force vibration, or the difference in the position where different users put the cleaning equipment back to the base, the position of the roller brush on the transmission part may deviate from the ideal position. The wider transmission part allows the roller brush and the transmission part to obtain a larger contact area even in the non-ideal position. Moreover, the wider size also gives the transmission part a larger heating area, and its surface that is not in contact with the roller brush can also heat the roller brush through thermal radiation.

[0015] In the embodiment of the present application, by limiting that "the projections of the transmission part and the rear scraper strip in the vertical direction are staggered; the projections of the rear scraper strip and the roller brush in the vertical direction at least partially overlap, and the infrared rays passing through the transmission part do not pass through the rear scraper strip", the influence of thermal radiation on its surrounding components can be effectively reduced, and overheating of the rear scraper strip due to the influence of thermal radiation can be reduced or even avoided.

[0016] Optionally, the cleaning device also includes a front scraper for scraping off dirt on the surface to be cleaned, and the front scraper is arranged at the front side of the cleaning device in the preset travel direction. When the cleaning device is located on the base, the infrared rays passing through the transmission member do not pass through the front scraper.

[0017] In order to clean and scrape away dirt and water stains in front of the roller brush during the cleaning process, the cleaning equipment will be equipped with a front scraper to contact the surface to be cleaned during the cleaning process. At the same time, in order to effectively contact the surface to be cleaned, the front scraper is often designed to be made of soft rubber. When the cleaning equipment is put back to the base for self-cleaning and drying after the cleaning process, if a specific structural design is not performed, the front scraper will be affected by the heat radiation of the infrared emitter.

[0018] Optionally, the cleaning device further comprises a roller brush cover plate, wherein the roller brush cover plate at least partially covers the roller brush, and the infrared rays passing through the transmission member do not pass through the roller brush cover plate.

[0019] The roller brush cover is generally located in front of and above the roller brush to form a semi-enclosed structure for the roller brush. One end of the cover is fixedly connected to the floor brush housing and other components of the cleaning equipment, and the other end is a free end and generally fits the front side of the roller brush. When the cleaning equipment is accommodated in the base, the roller brush cover may be affected by the infrared light passing through the transmission part and the surface temperature rises. Therefore, this problem can be effectively solved by preventing infrared light from passing through the transmission part in the structural design and using the roller brush to absorb and block all infrared light.

[0020] Optionally, the roller brush has a central section and a central vertical line, the central vertical line is perpendicular to the direction of travel, and the central vertical line passes through the center of the central section; among the infrared rays passing through the transmission element, the light rays away from the central vertical line form an acute angle α with the central vertical line in the vertical direction, and the value range of α is 0°-45°.

[0021] Limiting the outward deviation angle of the light from the infrared emitter passing through the transmission member relative to the central vertical line to within the angle range of 0°-45° can ensure that the light from the infrared emitter passing through the transmission member is absorbed and shielded by the roller brush as much as possible, which can not only improve the drying efficiency, but also prevent the transmitted light from scattering to other parts other than the roller brush that should not be overheated, such as the front scraper, roller brush cover, etc.

[0022] Further explanation from the technical principle: the reason why the upper limit of the angle is set to 45° is that the light intensity (i.e. the heat caused by thermal radiation) is highly correlated with the angle at which the light hits the surface of the object. If the light is perpendicular to the surface (the incident angle is 0°), the luminous flux received per unit area is the largest. In this case, the heat generated by directly hitting other components is the highest. When the light is incident at an angle θ to the surface, the effective irradiation area increases to the reciprocal times of the cosine value of the incident angle θ, which will cause the light intensity per unit area of ​​the irradiated object surface to weaken. Therefore, even if it passes through the transmission component and radiates to other components, it should be incident on the surface at a larger angle as much as possible to ensure that the thermal radiation of the infrared rays falling on the surface of the component or a single point is small enough so as not to cause the surface temperature to rise beyond the design tolerance, which is beneficial to the maintenance of the life of the component.

[0023] Optionally, the projection coverage area of ​​the transmission member in the vertical direction is set to D1, and the area where the projection of the roller brush in the vertical direction does not overlap with D1 is set to D2 and D3 respectively, wherein the rear scraper strip is at least partially located in D3;

[0024] The intersection of the central vertical line and the top surface of the transmission member facing the roller brush is taken as the reference origin, and the radiation intensity value of the reference origin is set to R. The radiation intensity value of any point D2 and D3 does not exceed 0.3R.

[0025] The infrared rays emitted by the infrared emitter are mainly concentrated on the D1 area where the transmission part and the roller brush are attached, so as to achieve a better ironing effect. Even if only part of the infrared rays are irradiated on the D2 and D3 areas where the roller brush and the transmission part do not overlap, the roller brush rotates continuously during the drying process, so the bristles on the roller brush can be fully irradiated with infrared rays when passing through the D1 area to achieve full drying. At the same time, the radiation intensity of any point in the D2 and D3 areas is controlled within a certain range (preferably 30% of the radiation intensity value of the reference origin), which can not only maintain the temperature control of the drying cavity on both sides of the transmission part, but also achieve the maintenance of the humid and hot temperature around the roller brush ironing area to prevent condensation and moisture before escaping the drying cavity, thereby reducing the drying efficiency and degree. At the same time, by controlling the single-point radiation intensity, other parts that are not resistant to high temperatures, such as the roller brush cover, rear scraper, front scraper, etc. in the D2 and D3 areas, are protected to prevent deformation and damage during the drying process.

[0026] Optionally, the length of the overlapping portion of the rear scraping strip and the roller brush in the vertical direction is 1 / 4-1 / 12 of the diameter of the roller brush;

[0027] The transmission member is within the projection range of the roller brush along the vertical direction, and the width of the transmission member is 1 / 2-4 / 5 of the diameter of the roller brush.

[0028] The limitation that "the projections of the transmission part and the rear scraper strip in the vertical direction are staggered is because the material of the transmission part itself will heat up under long-term infrared irradiation. If it is in direct contact with the rear scraper strip, the heat will be conducted to the rear scraper strip, resulting in a reduction in life or even deformation and damage; the limitation that the projections of the rear scraper strip and the roller brush in the vertical direction at least partially overlap, and the length of the overlapping part of the projections of the two is 1 / 4-1 / 12 of the diameter of the roller brush, is based on the fact that the rear scraper strip is used to scrape off dirt and water stains on the rear of the roller brush during cleaning. If the deviation from the projection of the roller brush is too high, the scraping effect cannot be achieved, and if the overlap is too high, it will be too close to the heat source during the self-cleaning and drying process; the limitation that the transmission part is within the projection range of the roller brush along the vertical direction, and the width of the transmission part is 1 / 2-4 / 5 of the diameter of the roller brush" is a design range that balances the drying and ironing effects and avoids safety hazards. The setting of this range can not only reduce the impact of the transmission part on its surrounding parts and reduce or even avoid overheating of the rear scraper, but also make the transmission part have the largest possible width to ensure the ironing effect, achieve efficient and uniform rapid drying of the bristles, and maintain the shape of the bristles when cleaning again.

[0029] Optionally, the distance between the top of the infrared emitter and the bottom surface of the transmission member facing away from the roller brush is 3-6 mm.

[0030] If the distance between the infrared emitter and the bottom of the transmission part is too small, the roller brush will be burned due to excessive temperature. If the distance between the infrared emitter and the bottom of the transmission part is too large, it will also affect the heating temperature. When the distance between the two is 3-6mm, the roller brush can obtain a suitable heating temperature.

[0031] Optionally, the thickness of the transmissive member is 3-6 mm.

[0032] In addition to the distance between the top surface of the infrared emitter and the bottom surface of the transmission element affecting the heating effect, the thickness of the transmission element also affects the heating effect. When the thickness of the transmission element is 3-6mm, it can ensure the ironing effect while reducing or even avoiding the risk of overheating of the roller brush.

[0033] Optionally, the transmittance of the transmissive member is 25-80%.

[0034] The transmission component with a light transmittance of 25-80% can not only ensure the transmission effect of infrared rays, but also have a certain shielding effect on the internal structure of the base below the transmission component. Especially when the cleaning equipment is not placed on the base, the low light transmittance transmission component can cover some internal components of the base below it, making the base look simpler and helping to improve the user experience.

[0035] Optionally, the radius of curvature of the interference contact portion between the transmission member and the roller brush is 2-3 times the radius of the roller brush.

[0036] The smaller the curvature radius of the transmissive part, the more difficult it is to heat-bend the transmissive part, and the more difficult it is to process. If the curvature radius of the transmissive part is too large, the overlap between the roller brush bristles and the transmissive part (i.e., the contact area) will be small, which will affect the cleaning effect of the roller brush on the glass surface. When the curvature radius of the interference contact part between the transmissive part and the roller brush is 2-3 times the radius of the roller brush, both the ironing effect and the process difficulty can be taken into account.

[0037] It can be understood that the conditions satisfied by the above-mentioned transmissive parts are descriptions of the effects of the bending design of the transmissive parts under ideal conditions. Due to material properties, processing difficulty, assembly errors, etc., the curved surface of the transmissive parts is a non-ideal smooth surface, which makes the actual curved surface have a small deviation from the ideal smooth surface corresponding to the curvature radius. This is an inevitable slight error due to material properties and processing and manufacturing. The structure realized by it still belongs to the creative contribution of this patent to the prior art and should not be excluded from the scope of protection of this application.

[0038] Optionally, the infrared heating device further comprises a reflective member, the reflective member is located on a side of the infrared emitter facing away from the roller brush, and at least part of the infrared rays are reflected by the reflective member to the transmissive member, and radiated to the roller brush through the transmissive member;

[0039] The side of the reflector facing the infrared emitter is at least partially a curved structure, and the curved structure is a parabola shape. If the lowest point of the curved structure is taken as the origin, the axis of symmetry of the curved structure is the Y axis, and the horizontal plane passing through the origin, perpendicular to the Y axis, and parallel to the horizontal plane tangent to the origin is taken as the X axis, then the parabola shape satisfies the following condition: Y=AX², where A is a positive number.

[0040] The infrared rays generated by the side of the infrared emitter facing the roller brush can be projected onto the transmission member and radiated to the roller brush through the transmission member. The infrared rays generated by the side of the infrared emitter facing away from the roller brush can be radiated onto the reflective member, reflected to the transmission member through the reflective member, and then projected onto the roller brush through the transmission member, so as to further improve the self-cleaning efficiency of the roller brush. The parabolic reflective member that roughly satisfies the above formula can ensure that the optical fiber emitted from the infrared emitter passes through the transmission member evenly through the transmission member after being reflected by the parabolic reflective member and reaches the surface of the roller brush in nearly parallel rays, forming a uniform thermal radiation light band, which is conducive to uniform heating of the roller brush. At the same time, the parallel light band enables the transmission member to be heated evenly. Such a design makes the temperature of each part of the roller brush bristles that contacts the transmission member uniform, achieving a better ironing effect while also preventing local overheating from damaging the roller brush and reducing its service life.

[0041] It can be understood that the condition satisfied by the above parabola is the fitting of the calculation results at the discontinuous positions inside the reflector. The curved surface structure shape of the reflector facing the infrared emitter does not necessarily completely match Y=AX², and some positions have small deviations from the parabola and also fall within the scope of protection of this application.

[0042] Optionally, an air duct is provided inside the base body, and the base further comprises a fan for blowing air into the air duct;

[0043] The infrared heating device also includes a heat sink and a reflective element, the heat sink is located below the infrared emitter and in the air duct; the reflective element and the transmissive element are jointly arranged to form a chamber, and the infrared emitter is located in the chamber; at least part of the infrared rays are reflected by the reflective element to the transmissive element, and radiated to the roller brush through the transmissive element, and the airflow blown out by the fan at least passes through the heat sink to transfer the heat of the heat sink to the roller brush.

[0044] The heat sink can absorb infrared light to generate heat. The airflow from the fan will be heated by the heat sink to form hot airflow. The hot airflow will be blown to the roller brush through the air outlet. The high-temperature airflow dries the bristles through convection heat exchange, taking away the evaporated water vapor on the bristles, speeding up the drying process. At the same time, the high-temperature airflow can also achieve the effect of full-link drying. The heat sink and fan can be used to dry the roller brush by thermal convection.

[0045] Moreover, the infrared light emitted by the infrared emitter has strong penetrability and can pass through the transmission part to irradiate the roller brush. The infrared light irradiated on the roller brush can not only radiate to the surface of the roller brush, but also some infrared light will penetrate the bristles of the roller brush and irradiate into the inside of the bristles. The infrared light inside the bristles generates radiant heat, drying the roller brush bristles from the inside out. Combined with the heat conduction ironing of the roller brush by the transmission part, the infrared emitter of the embodiment of the present application is used as a heat source to optimize the heat conduction method in the prior art, and realizes a full-dimensional three-dimensional drying technology including three heat conduction methods of thermal radiation, thermal conduction and thermal convection, and dries the roller brush from the inside to the outside in all directions, reducing or even avoiding the current problems of the roller brush not drying out and stinking.

[0046] Optionally, the bottom of the reflector has an opening communicating with the chamber, and the heat dissipation element is opposite to the opening;

[0047] The length of the heat sink is greater than or equal to the length of the opening; and / or the width of the heat sink is greater than or equal to the width of the opening.

[0048] The length of the heat sink is greater than or equal to the length of the opening, which can ensure the heat dissipation effect on the infrared emitter in the length direction; the width of the heat sink is greater than or equal to the width of the opening, which can ensure the heat dissipation effect on the infrared emitter in the width direction.

[0049] Optionally, the air duct includes at least two sub-air ducts distributed along the width direction of the base body, and the at least two sub-air ducts can respectively direct the airflow to different axial positions of the roller brush;

[0050] The heat dissipation element is located in at least one of the sub-air ducts.

[0051] The opening may be a narrow and long opening formed along the width direction of the base (this direction also refers to the axial direction of the roller brush).

[0052] For a sub-duct equipped with a heat sink, the airflow flowing out of the sub-duct can be heated by the heat sink to form a hot airflow; for a sub-duct without a heat sink, the airflow flowing out of the sub-duct has a lower temperature, which can be called a normal temperature airflow. Heat sinks can be set in all sub-ducts, so that the airflows blown out of all sub-ducts are hot airflows. Heat sinks can also be set in some sub-ducts, while heat sinks are not set in other sub-ducts. For example, heat sinks can be set in some sub-ducts corresponding to the middle position of the roller brush, while heat sinks are not set in the sub-ducts corresponding to the two ends of the roller brush; or, heat sinks are not set in some sub-ducts corresponding to the middle position of the roller brush, while heat sinks are set in the sub-ducts corresponding to the two ends of the roller brush. In this way, the airflow flowing out of the air outlet is a mixture of hot airflow and normal temperature airflow, which is conducive to stirring the flow field of the airflow. The temperature of the drying airflow at the corresponding position can also be adjusted according to the drying requirements at different positions of the roller brush, which is convenient for refined and intelligent control of drying and improves the user experience.

[0053] Optionally, the heat sink comprises a heat sink substrate and a plurality of fins, wherein the plurality of fins are spaced apart along the axial direction of the infrared emitter, wherein the length direction of the infrared emitter is parallel to the axis of the roller brush;

[0054] The fin is disposed in at least one of the sub-air ducts.

[0055] The heat dissipation substrate can not only increase the heat dissipation area, but also serve as a mounting carrier for the fins. The more fins there are, the larger the heat dissipation surface is, and the more conducive it is to improving the heat dissipation effect.

[0056] The heat dissipation substrate can extend along the axial direction of the roller brush, and the fins can be located in the corresponding sub-air duct. The more fins are arranged in the sub-air duct, the higher the temperature of the air flow out of the sub-air duct can be; on the contrary, the fewer fins are arranged in the sub-air duct, the lower the temperature of the air flow out of the sub-air duct can be.

[0057] A second aspect of the present application provides a base, the base comprising:

[0058] A base body, the base body being provided with a cleaning groove for accommodating a roller brush of a cleaning device, the cleaning device being able to move along a preset travel direction on a surface to be cleaned;

[0059] The infrared heating device comprises an infrared emitter and a transmission member, wherein the transmission member is located below the roller brush, the infrared emitter is located below the transmission member, the infrared emitter is used to emit infrared rays, and at least part of the infrared rays can be radiated to the roller brush through the transmission member;

[0060] The top surface of the transmission member facing the roller brush is in interference contact with the roller brush, and is a curved surface structure concave downward;

[0061] The cleaning device further comprises a rear scraper located behind the transmission member, wherein the rear scraper can contact the surface to be cleaned during the cleaning process of the cleaning device; wherein the rear is opposite to the travel direction;

[0062] Taking the vertical plane tangent to the rear side of the roller brush facing away from the travel direction as the reference plane, the ratio of the distance from the rear edge of the transmission member facing away from the travel direction to the reference plane to the distance from the front edge below the rear scraper strip to the reference plane is: 1.02-4.0.

[0063] Similar to the first aspect, when the ratio of the distance between the rear edge of the transmissive member and the reference surface and the distance between the front edge below the rear scraper strip and the reference surface is 1.02-4.0, the rear scraper strip can be prevented from overheating and affecting the alignment of the transmissive member with surrounding components, and the transmissive member can be made to have the largest possible width to ensure the ironing effect.

[0064] The third aspect of the present application provides a cleaning system, characterized in that the cleaning system comprises:

[0065] The base as described in any of the preceding embodiments;

[0066] A cleaning device, wherein the cleaning device comprises a roller brush. When the cleaning device is located on the base, the roller brush is located in the cleaning tank.

[0067] The cleaning system includes the aforementioned base, so the cleaning system also has the same technical effects as the aforementioned base and will not be described again. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0069] Figure 1 A schematic diagram of the structure of a cleaning system in some embodiments of the present application;

[0070] Figure 2 In some embodiments of the present application, a longitudinal cross-sectional view of the cleaning system after the floor brush assembly is placed on the base;

[0071] Figure 3 A schematic diagram of a portion of the structure of the cleaning system after the floor brush assembly is placed on the base in some embodiments of the present application;

[0072] Figure 4 A side view of a transmission member in a cleaning device provided in some embodiments of the present application;

[0073] Figure 5 A diagram showing a state in which a lower housing and a heat sink cooperate with each other in a cleaning device provided in some embodiments of the present application;

[0074] Figure 6 A zoning diagram of different radiation intensities of a drying base provided in some embodiments of the present application.

[0075] Description of reference numerals:

[0076] 100, cleaning equipment; 101, sewage tank; 102, travel wheel; 103, clean water tank; 104, floor brush assembly; 110, roller brush; 120, front scraper;

[0077] 200, base; 201, infrared heating device; 202, cleaning tank; 203, upper shell; 204, lower shell; 2041, sub-air duct; 210, infrared emitter; 220, transmission element; 230, reflection element; 231, opening; 232, chamber; 240, heat sink; 241, heat sink substrate; 242, fin; 250, air duct; 260, fan; 270, rear scraper; 280, suction port. DETAILED DESCRIPTION

[0078] In order to make the technical solutions and beneficial effects of the utility model more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0079] In the description of the present invention, the terms "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of simplifying the description of the present invention, and do not indicate that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation on the present invention.

[0080] In the present invention, the terms "first" and "second" are used only for the purpose of clarity of description and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can expressly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc.

[0081] like Figure 1 As shown, the cleaning system includes a cleaning device 100 and a base 200. The cleaning device 100 may include a floor brush assembly 104. When working, the cleaning device 100 can move along a preset direction of travel on the surface to be cleaned, and the cleaning member at the bottom of the floor brush assembly 104 contacts and rubs with the surface to be cleaned to clean the surface.

[0082] Cleaning equipment includes but is not limited to floor scrubbers, all-in-one washing and mopping machines, electric mops, etc.

[0083] For convenience of description, see Figure 1 and Figure 2 In the embodiment of the present application, the direction shown in the figure is the preset direction of travel, the direction in the same direction as the direction of travel is "front", and the direction opposite to the direction of travel is "back"; "up" and "down" are two opposite directions along the vertical direction. Based on this, the cleaning system of the embodiment of the present application is described below by taking the cleaning device as a floor scrubber as an example.

[0084] See also Figure 1 The floor brush assembly 104 may also include a floor brush body and a walking wheel 102. The floor brush body is the main support structure of the floor brush assembly 104, and the roller brush 110 ( Figure 2) and the walking wheel 102 can be both installed on the floor brush body. For example, the floor brush body can have a accommodating cavity, the roller brush 110 can be located in the accommodating cavity, and the roller brush 110 can rotate around the axial direction of the roller brush 110 itself. When the cleaning device performs cleaning work, the roller brush 110 contacts the surface to be cleaned, and the roller brush 110 is driven to rotate at a high speed by the roller brush motor installed in the floor brush body, so that the roller brush 110 can make friction contact with the surface to be cleaned to clean the surface to be cleaned. The walking wheel 102 contacts the surface to be cleaned and rolls along the surface to be cleaned to assist the cleaning device in walking on the surface to be cleaned, which can improve the stability of the floor brush assembly 104 walking on the surface to be cleaned.

[0085] like Figure 2 As shown, a cleaning tank 202 for placing the roller brush 110 is provided on the base 200. When the cleaning device 100 completes the cleaning work and docks on the base 200, the cleaning device 100 can perform self-cleaning. During the self-cleaning process, the roller brush 110 is cleaned and dried in the cleaning tank 202.

[0086] like Figure 1 As shown, the cleaning device 100 also includes a clean water tank 103 and a dirty water tank 101. The clean water tank 103 can provide cleaning liquid to the roller brush to wet the roller brush to achieve wet cleaning. When the cleaning device 100 is placed on the base 200, the cleaning liquid provided by the clean water tank 103 can also be used for self-cleaning. The dirty water tank 101 is used to store dirty water or solid dirt generated after cleaning.

[0087] The utility model of the present application is to use an infrared heating device to replace the existing electric heating wire heating method to improve the self-cleaning effect, and at least optimize the structure and related position relationship of the transmission part, the rear scraper and other components in the infrared heating device to improve the ironing effect of the roller brush while avoiding affecting the life of other components around the roller brush. Figures 1 to 6 The embodiments of the present application are described in detail. Example 1

[0088] Based on the above description, see Figure 2The base 200 of Example 1 includes a base body, an infrared heating device 201 and a rear scraper 270. The base body is provided with a cleaning tank 202 for accommodating the roller brush 110 of the cleaning device 100; the infrared heating device 201 includes an infrared emitter 210 and a transmission member 220. The transmission member 220 is located below the roller brush 110. The infrared emitter 210 is located below the transmission member 220. The infrared emitter 210 is used to emit infrared rays, and at least part of the infrared rays can be radiated to the roller brush 110 through the transmission member 220; the transmission member 220 faces the top surface of the roller brush 110 and is in interference contact with the roller brush 110, and it is a curved surface structure that is concave downward. The rear scraper 270 is located behind the transmission member 220. The rear scraper 270 can contact the surface to be cleaned during the cleaning process of the cleaning device 100. Figure 2 As shown, the rear scraper bar 270 here is the lower rear scraper bar of the floor brush assembly 104, which is located below the suction port 280 of the floor brush assembly 104. The rear scraper bar 270 can scrape the surface to be cleaned as the cleaning device 100 moves back and forth, thereby improving the cleaning effect of the surface to be cleaned, and the cleaned dirt and sewage are retained on the surface to be cleaned corresponding to the suction port 280, and can eventually be sucked away from the suction port 280 into the sewage tank.

[0089] The projections of the transmissive member 220 and the rear scraper strip 270 in the vertical direction are staggered; see Figure 3 , the projections of the rear scraping strip 270 and the rolling brush 110 in the vertical direction at least partially overlap, and the infrared rays passing through the transmission member do not pass through the rear scraping strip.

[0090] When infrared light penetrates the transmission member 220, the transmission member 220 absorbs a portion of the infrared light and converts it into heat, causing its temperature to rise. The heated transmission member 220 can iron the roller brush 110 that is in interference contact with it, and this ironing effect is beneficial to both the cleaning stage and the drying stage of the self-cleaning process. The technical solution of the embodiment of the present application can make the transmission member 220 and the roller brush 110 have as large a contact area as possible, thereby improving the ironing effect of the transmission member 220 on the roller brush 110, which is beneficial to the shape recovery of the bristles after drying, making them more fluffy, and improving the subsequent cleaning effect.

[0091] Affected by factors such as the material of the transmission member 220 and the difficulty of processing, it is difficult for the top surface of the transmission member 220 to be completely in contact with the roller brush 110. In addition, in order to maintain a large contact area between the transmission member 220 and the roller brush 110, the roller brush 110 and the transmission member 220 are aligned in the center in the projection along the vertical direction. This results in the front and rear sides of the transmission member 220 being basically not in contact with the bristles of the roller brush 110. Therefore, it is believed that the width of the transmission member 220 has little effect on the ironing effect of the roller brush 110, and the width of the transmission member 220 can be reduced as much as possible. But in fact, a transmission member 220 that is as wide as possible is conducive to improving the ironing effect. For example: the position where the roller brush 110 and the transmission member 220 are aligned in the center in the vertical projection is recorded as the ideal position. The position of the roller brush 110 on the transmission member 220 may deviate from the ideal position due to the rotation of the roller brush 110, external vibration, or the difference in the position where different users put the cleaning device 100 back to the base 200. The wider transmission member 220 enables the roller brush 110 and the transmission member 220 to obtain a larger contact area even in a non-ideal position. Moreover, the wider size also enables the transmission member 220 to have a larger heating area, and the end of the transmission member 220 that is not in contact with the roller brush 110 can also heat the roller brush 110 through heat radiation.

[0092] In the embodiment of the present application, by limiting that “the projections of the transmission member 220 and the rear scraper strip 270 in the vertical direction are staggered; the projections of the rear scraper strip 270 and the roller brush 110 in the vertical direction at least partially overlap, and the infrared rays passing through the transmission member 220 do not pass through the rear scraper strip 270”, the influence of the infrared emitter 210 and the transmission member 220 on the surrounding components can be effectively reduced, and overheating of the rear scraper strip 270 due to thermal radiation can be reduced or even avoided.

[0093] In some embodiments, the cleaning device 100 further includes a front scraper 120 for scraping dirt off the surface to be cleaned (see Figure 2 ), the front scraper 120 is arranged at the front side of the cleaning device in a preset moving direction. When the cleaning device 100 is located on the base 200, the infrared rays passing through the transmission member 220 do not pass through the front scraper 120.

[0094] In order to clean and scrape off dirt and water stains in front of the roller brush 110 in the direction of travel during the cleaning process, the cleaning device 100 is equipped with a front scraper 120 for contacting the surface to be cleaned during the cleaning process. At the same time, in order to effectively contact the surface to be cleaned, the front scraper 120 is often designed to be made of soft rubber material. During the self-cleaning and drying period when the cleaning device 100 is returned to the base 200 after the cleaning process is completed, if a specific structural design is not performed, the front scraper 120 will be affected by the heat radiation of the infrared emitter 210.

[0095] In some embodiments, the cleaning device 100 further includes a roller brush cover plate, which at least partially covers the roller brush 110 , and the infrared rays passing through the transmission member 220 do not pass through the roller brush cover plate.

[0096] The roller brush cover is generally located in front of and above the roller brush to form a semi-enclosed structure for the roller brush. One end of the cover is fixedly connected to the floor brush housing and other components of the cleaning device 100, and the other end is a free end and generally fits the front side of the roller brush 110. When the cleaning device 100 is accommodated in the base 200, the roller brush cover may be affected by the infrared light passing through the transmission member 220 and the surface temperature rises. Therefore, by preventing infrared light from passing through the transmission member 220 in the structural design, and using the roller brush 110 to absorb and block all infrared light, this problem can be effectively solved.

[0097] In another embodiment, see Figure 6 The roller brush 110 has a central cross section and a central vertical line N, the central vertical line N is perpendicular to the traveling direction, and the central vertical line N passes through the center of the central cross section; among the infrared rays passing through the transmission member 220, the light rays away from the central vertical line N ( Figure 6 The vertical angle α (roughly represented by P) forms an acute angle α with the central perpendicular line N in the vertical direction, and the value range of α is 0°-45°.

[0098] Limiting the angle α of the light from the infrared emitter 210 passing through the transmission member 220 relative to the central vertical line N to the angle range of 0°-45° can ensure that the light from the infrared emitter 210 passing through the transmission member 220 is absorbed and blocked by the roller brush 110 as much as possible, which can not only improve the drying efficiency, but also prevent the transmitted light from scattering to other parts other than the roller brush 110 that should not be overheated, such as the front scraper 120, the roller brush cover, etc. The reason why the upper limit of the angle is set to 45° is that the light intensity (i.e., the heat brought by thermal radiation) is highly related to the angle at which the light hits the surface of the object. If the light is perpendicular to the surface (the incident angle is 0°), the luminous flux received per unit area is the largest. In contrast to this solution, the heat generated by directly hitting other parts is the highest. When the light is incident at an angle θ to the surface, the effective irradiation area increases to the reciprocal times of the cosine value of the incident angle θ, which will cause the light intensity per unit area of ​​the irradiated object surface to weaken. Therefore, even if the infrared rays pass through the transmissive parts and radiate to other components, they should be incident on the surface at a larger angle as possible to ensure that the thermal radiation of the infrared rays falling on the surface of the component or a single point is small enough not to cause the surface temperature to rise beyond the designed tolerance, which is beneficial to maintaining the life of the component.

[0099] In some embodiments, reference Figure 6As shown, the projection coverage area of ​​the transmission member in the vertical direction is set to D1, and the area where the projection of the roller brush 110 in the vertical direction does not overlap with D1 is set to D2 and D3 respectively, D2 is located in front of D1, and D3 is located behind D1, wherein the rear scraper 270 is at least partially located in D3; the intersection of the central vertical line N and the top surface of the transmission member 220 toward the roller brush 110 is taken as the reference origin O2, the radiation intensity value of the reference origin O2 is set to R, and the radiation intensity value of any point of D2 and D3 does not exceed 0.3R.

[0100] The infrared rays emitted by the infrared emitter 210 are mainly concentrated on the D1 area where the transparent member 220 and the roller brush 110 are in contact, so as to better achieve the ironing effect. Even if the infrared rays are only partially irradiated on the D2 and D3 areas where the roller brush 110 and the transparent member 220 do not overlap, since the roller brush 110 rotates continuously during the drying process, the bristles on the roller brush 110 can be fully irradiated with infrared rays when passing through the D1 area to achieve sufficient drying. At the same time, the radiation intensity of any point in the regions D2 and D3 is controlled within a certain range (preferably 30% of the radiation intensity value of the reference origin O2), which can maintain the temperature control of the drying chambers on both sides of the transmission member 220, and achieve the maintenance of the humid and hot temperature around the ironing area of ​​the roller brush 110, preventing it from condensing onto the surface of the roller brush 110 or in the cavity before escaping from the drying cavity, causing moisture to return and reduce the drying efficiency and degree. At the same time, by controlling the single-point radiation intensity, other components that are not resistant to high temperatures, such as the roller brush cover, rear scraper 270, and front scraper 120 in the D1 and D2 regions, are protected to prevent deformation and damage during the drying process.

[0101] In another embodiment, the length L1 of the overlapping portion of the rear scraper strip 270 and the roller brush 110 in the vertical direction is 1 / 4-1 / 12 of the diameter of the roller brush 110; the transmission member 220 is within the projection range of the roller brush 110 in the vertical direction, and the width L of the transmission member 220 (see Figure 4 ) is 1 / 2-4 / 5 of the diameter of the roller brush 110.

[0102] By defining that “the projections of the transmission member 220 and the rear scraping strip 270 in the vertical direction are staggered; the projections of the rear scraping strip 270 and the roller brush 110 in the vertical direction at least partially overlap, and the length of the overlapping portion of the projections of the two ( Figure 3 When the transmission member 220 is within the projection range of the roller brush 110 along the vertical direction and the width of the transmission member 220 is 1 / 2-4 / 5 of the diameter of the roller brush 110, the influence of the alignment of the transmission member 220 with surrounding components can be reduced, and the overheating of the rear scraper 270 can be reduced or even avoided, and the transmission member 220 can have the largest possible width to ensure the ironing effect, realize efficient and uniform rapid drying of the bristles, and maintain the shape of the bristles when cleaning again.

[0103] Exemplarily, the upper surface of the transmissive member 220 and the surface of the roller brush 110 have an interference fit of 1 mm.

[0104] In some implementations, the length L1 of the overlapping portion of the projection of the rear scraping strip 270 and the roller brush 110 in the vertical direction is about 1 / 9 of the diameter of the roller brush 110 .

[0105] In some implementations, the width of the transmissive member 220 is 40±5 mm, which is approximately 2 / 3 of the diameter of the roller brush 110 .

[0106] In some embodiments, the distance between the top of the infrared emitter 210 and the bottom surface of the transmissive member 220 facing away from the roller brush 110, that is, the distance between the infrared emitter 210 and the transmissive member 220 along the vertical direction is 3-6 mm.

[0107] For example, in Figure 3 In the illustrated embodiment, the distance between the top of the infrared emitter 210 and the bottom surface of the transmissive member 220 facing away from the roller brush 110 is approximately 4 mm.

[0108] If the distance between the infrared emitter 210 and the bottom surface of the transmission member 220 is too small, the roller brush 110 will be burned due to excessive temperature. If the distance between the infrared emitter 210 and the bottom surface of the transmission member 220 is too large, the heating temperature will also be affected. When the distance between the two is 3-6 mm, the roller brush 110 can obtain a suitable heating temperature.

[0109] In some embodiments, see Figure 4 , the thickness D of the transmissive member 220 is 3-6 mm.

[0110] exist Figure 4 In the illustrated implementation, the upper surface curvature radius r1 of the transmissive member 220 is approximately 97.5 mm, the lower surface curvature radius r2 is approximately 101.5 mm, and the thickness D is approximately 4 mm.

[0111] In addition to the distance between the top surface of the infrared emitter 210 and the bottom surface of the transmissive member 220 affecting the heating effect, the thickness of the transmissive member 220 also affects the heating effect. When the thickness of the transmissive member 220 is 3-6 mm, the ironing effect can be guaranteed while reducing or even avoiding the risk of overheating of the roller brush 110.

[0112] In some embodiments, the light transmittance of the transmissive member 220 is 25-80%.

[0113] exist Figure 3 In the illustrated implementation, the transmissive member 220 is made of black glass with a light transmittance of approximately 30%.

[0114] The transmission member 220 with a light transmittance of 25-80% can ensure the transmission effect of infrared rays and have a certain shielding effect on the internal structure of the base 200 below the transmission member 220. In particular, when the cleaning device 100 is not placed on the base 200, the low light transmittance transmission member 220 can cover some internal components of the base 200 below it, making the base 200 look simpler and helping to improve the user experience.

[0115] In some embodiments, see Figure 4 The curvature radius r1 of at least a portion of the top surface of the transmission member 220 is 2-3 times the radius of the rolling brush 110. In other words, at least the radius of the interference contact portion between the transmission member 220 and the rolling brush 110 is 2-3 times the radius of the rolling brush 110.

[0116] The smaller the curvature radius of the transmission member 220, the more difficult it is to heat-bend the transmission member 220, and the more difficult it is to process; if the curvature radius of the transmission member 220 is too large, the overlap (i.e., the contact area) between the bristles of the roller brush 110 and the transmission member 220 is small, which affects the cleaning effect of the roller brush 110 on the glass surface. When the curvature radius of the top surface of the transmission member 220 is 2-3 times the radius of the roller brush 110, both the ironing effect and the process difficulty can be taken into account.

[0117] It can be understood that the conditions satisfied by the above-mentioned transmissive member 220 are descriptions of the effects of the curved design of the transmissive member 220 under ideal conditions. Due to material properties, processing difficulty, assembly errors, etc., the curved surface of the transmissive member 220 is a non-ideal smooth surface, which makes the actual curved surface have a small deviation from the ideal smooth curved surface corresponding to the curvature radius. This is an inevitable slight error due to material properties and processing and manufacturing. The structure realized by it still belongs to the creative contribution made by this patent to the prior art and should not be excluded from the scope of protection of this application.

[0118] In some embodiments, Figure 3 As shown, the infrared heating device 201 further includes a reflective member 230, which is located on a side of the infrared emitter 210 facing away from the roller brush 110, and at least part of the infrared rays are reflected by the reflective member 230 to the transmissive member 220, and radiated to the roller brush 110 through the transmissive member 220;

[0119] At least part of the side of the reflector 230 facing the infrared emitter 210 is a curved surface structure, and the curved surface structure is a parabola shape. Figure 3 , if the lowest point of the curved surface structure is the origin O1, the axis of symmetry of the curved surface structure is the Y axis, and the horizontal plane passing through the origin O1, perpendicular to the Y axis, and parallel to the horizontal plane tangent to the origin O1 is the X axis, then the parabola shape satisfies the following conditions: Y=AX², where A is a positive number.

[0120] The infrared rays generated by the side of the infrared emitter 210 facing the roller brush 110 can be projected onto the transmission member 220 and radiated to the roller brush 110 through the transmission member 220. The infrared rays generated by the side of the infrared emitter facing away from the roller brush 110 can be radiated onto the reflective member 230, and reflected to the transmission member 220 through the reflective member 230, and then projected onto the roller brush 110 through the transmission member 220, so as to further improve the self-cleaning efficiency of the roller brush 110. The parabolic reflective member 230 that roughly satisfies the above formula can ensure that the light emitted from the infrared emitter 210 passes through the transmission member 220 uniformly and reaches the surface of the roller brush 110 as nearly parallel rays after being reflected by the parabolic reflective member 230, forming a uniform thermal radiation light band, which is conducive to uniform heating of the roller brush 110. At the same time, the parallel light bands enable the transmission member 220 to be heated evenly. This design makes the temperature of each part where the roller brush bristles contact the transmission member 220 uniform, achieving a better ironing effect while also preventing local overheating that damages the roller brush 110 and reduces its service life.

[0121] It can be understood that the condition satisfied by the above-mentioned parabola is the fitting of the calculation results at the discontinuous positions inside the reflector 230. The curved surface structure shape of the reflector 230 facing the infrared emitter 210 does not necessarily completely match Y=AX², and some positions have small deviations from the parabola and also fall within the scope of protection of this application.

[0122] In some implementations, the parabolic shape of the curved structure satisfies the following condition: Y=2 / 9X².

[0123] In some embodiments, Figure 2 As shown, the base body is provided with an air duct 250, and the base 200 further includes a fan 260 for blowing air into the air duct 250; the infrared heating device 201 further includes a heat sink 240 and a reflector 230, the heat sink 240 is located below the infrared emitter 210 and in the air duct 250; the reflector 230 and the transmission member 220 are jointly surrounded to form a chamber 232 ( Figure 3 ), the infrared emitter 210 is located in the chamber 232; at least part of the infrared rays are reflected by the reflective element 230 to the transmissive element 220, and radiated to the roller brush 110 through the transmissive element 220, and the airflow blown out by the fan 260 passes through at least the heat sink 240 to transfer the heat of the heat sink 240 to the roller brush 110.

[0124] The heat sink 240 can absorb infrared light to generate heat. The airflow blown by the fan 260 will be heated by the heat sink 240 to form a hot airflow. The hot airflow passes through the air outlet and blows toward the roller brush 110. The high-temperature airflow dries the bristles through convection heat exchange, takes away the evaporated water vapor on the bristles, speeds up the drying process, and can also achieve a full-link drying effect. The heat sink 240 and the fan 260 can be used to dry the roller brush 110 by thermal convection.

[0125] Moreover, the infrared light emitted by the infrared emitter 210 has strong penetrability and can pass through the transmission member 220 to irradiate the roller brush 110. The infrared light irradiated on the roller brush 110 can not only radiate to the surface of the roller brush 110, but also some infrared light can penetrate the bristles of the roller brush 110 and irradiate into the inside of the bristles. The infrared light inside the bristles generates radiant heat, and dries the hair of the roller brush 110 from the inside out. Combined with the heat conduction ironing of the roller brush 110 by the transmission member 220, the infrared emitter 210 of the embodiment of the present application is used as a heat source to optimize the heat conduction method in the prior art, and realizes a full-dimensional three-dimensional drying technology including three heat conduction methods of heat radiation, heat conduction and heat convection, and dries the roller brush 110 from the inside to the outside in all directions, reducing or even avoiding the current problems of the roller brush 110 not being dried or stinking.

[0126] like Figure 2 As shown, the base 200 includes an upper shell 203 and a lower shell 204 , the cleaning tank 202 is located above the upper shell 203 , the air duct 250 is located between the upper shell 203 and the lower shell 204 , and the fan 260 is located in the air duct 250 .

[0127] In some embodiments, Figure 3 As shown, the bottom of the reflector 230 has an opening 231 communicating with the chamber 232 , and the heat sink 240 is opposite to the opening 231 ; the length of the heat sink 240 is greater than or equal to the length of the opening 231 .

[0128] In some embodiments, the width of the heat dissipation member 240 is greater than or equal to the width of the opening 231 .

[0129] In the embodiment of the present application, the opening 231 may be a narrow and long opening formed along the width direction of the base 200 (this direction also refers to the axial direction of the roller brush 110). "Length" refers to the length roughly parallel to the axial direction of the roller brush 110. "Width" refers to the width roughly parallel to the traveling direction.

[0130] The length of the heat sink 240 is greater than or equal to the length of the opening 231, which can ensure the heat dissipation effect on the infrared emitter 210 in the length direction; the width of the heat sink 240 is greater than or equal to the width of the opening 231, which can ensure the heat dissipation effect on the infrared emitter 210 in the width direction.

[0131] In some embodiments, Figure 5 As shown, the air duct 250 includes at least two sub-air ducts 2041 distributed along the width direction of the base body, and the at least two sub-air ducts 2041 can respectively guide the airflow to different axial positions of the roller brush 110; the heat sink 240 is located in at least one sub-air duct 2041.

[0132] For the sub-air duct 2041 provided with the heat sink 240, the airflow flowing out of the sub-air duct 2041 can be heated by the heat sink 240 to form a hot airflow; for the sub-air duct 2041 without the heat sink 240, the airflow flowing out of the sub-air duct 2041 has a lower temperature and can be called a normal temperature airflow. The heat sink 240 can be provided in all the sub-air ducts 2041, so that the airflow blown out of all the sub-air ducts 2041 is a hot airflow. It is also possible that a heat sink 240 is provided in some of the sub-air ducts 2041, and no heat sink 240 is provided in other sub-air ducts 2041. For example, heat sinks 240 may be provided in some of the sub-air ducts 2041 corresponding to the middle of the roller brush 110, while heat sinks 240 are not provided in the sub-air ducts 2041 corresponding to the two ends of the roller brush 110; or, heat sinks 240 are not provided in some of the sub-air ducts 2041 corresponding to the middle of the roller brush 110, while heat sinks 240 are provided in the sub-air ducts 2041 corresponding to the two ends of the roller brush 110. In this way, the airflow flowing out of the air outlet is a mixture of hot airflow and normal temperature airflow, which is conducive to stirring the flow field of the airflow, and the temperature of the drying airflow at the corresponding position can also be adjusted according to the drying requirements at different positions of the roller brush 110, so as to facilitate refined and intelligent control of drying and improve the user experience.

[0133] In some embodiments, Figure 5 As shown, the heat sink 240 includes a heat sink substrate 241 and a plurality of fins 242 , wherein the plurality of fins 242 are distributed at intervals along the axial direction of the infrared emitter 210 , wherein the length direction of the infrared emitter 210 is parallel to the axis of the roller brush 110 ; and a fin 242 is provided in at least one sub-air duct 2041 .

[0134] The heat dissipation substrate 241 can not only increase the heat dissipation area, but also serve as a mounting carrier for the fins 242. The more fins 242 there are, the larger the heat dissipation surface is, and the more conducive to improving the heat dissipation effect.

[0135] The heat dissipation substrate 241 may extend along the axial direction of the roller brush 110, and the fins 242 may be located in the corresponding sub-air duct 2041. The more fins 242 are arranged in the sub-air duct 2041, the higher the temperature of the air flow out of the sub-air duct 2041; on the contrary, the fewer the fins 242 are arranged in the sub-air duct 2041, the lower the temperature of the air flow out of the sub-air duct 2041. Example 2

[0136] Based on the above description, see Figure 2 The base 200 of Example 2 includes a base body, an infrared heating device 201 and a rear scraper 270; the base body is provided with a cleaning tank 202 for accommodating the roller brush 110 of the cleaning device 100; the infrared heating device 201 includes an infrared emitter 210 and a transmission member 220, the transmission member 220 is located below the roller brush 110, the infrared emitter 210 is located below the transmission member 220, the infrared emitter 210 is used to emit infrared rays, at least part of the infrared rays can be radiated to the roller brush 110 through the transmission member 220; the transmission member 220 is in interference contact with the roller brush 110 on the top surface facing the roller brush 110, and it is a downwardly concave curved surface structure, and the curvature radius of the top surface of the transmission member 220 is 2-3 times the radius of the roller brush 110; the rear scraper 270 is located behind the transmission member 220, and the rear scraper 270 can contact the surface to be cleaned during the cleaning process of the cleaning device 100. Figure 3 As shown, a vertical plane tangent to the rear side of the roller brush 110 facing away from the traveling direction is taken as a reference plane M ( Figure 3 ), the distance L2 between the rear edge of the transmissive member 220 facing away from the traveling direction and the reference plane M and the distance between the front edge of the lower side of the rear scraper strip 270 and the reference plane M (i.e. Figure 3 The ratio of the length L1 of the overlapping portion of the projection of the middle and rear scraper strip 270 and the roller brush 110 in the vertical direction is: 1.02-4.0.

[0137] exist Figure 3 In the illustrated implementation, the ratio of the distance from the rear edge of the transmissive member 220 to the reference surface to the distance from the lower front edge of the rear scraper strip 270 to the reference surface is approximately 1.3.

[0138] Similar to Example 1, when the ratio of the distance between the rear edge of the transparent member 220 and the reference surface and the distance between the front edge below the rear scraper strip 270 and the reference surface is 1.02-4.0, it can reduce the influence of the transparent member 220 on the alignment of surrounding components, reduce or even avoid overheating of the rear scraper strip 270, and make the transparent member 220 have the largest possible width to ensure the ironing effect.

[0139] The other structures of Example 2 may be the same as those of Example 1 and will not be described again. Example 3

[0140] Based on the above description, embodiment 3 provides a cleaning system, which includes a base 200 and a cleaning device 100 of any of the above embodiments. The cleaning device 100 includes a roller brush 110. When the cleaning device 100 is located on the base 200, the roller brush 110 is located in the cleaning tank 202.

[0141] The cleaning system includes the aforementioned base 200, so the cleaning system also has the same structure and technical effects as the aforementioned base 200, and will not be described repeatedly.

[0142] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0143] In the description of this specification, reference to "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A base, characterized in that: The base comprises: A base body, the base body being provided with a cleaning groove for accommodating a roller brush of a cleaning device, the cleaning device being able to move along a preset travel direction on a surface to be cleaned; The infrared heating device comprises an infrared emitter and a transmission member; the transmission member is located below the roller brush, the infrared emitter is located below the transmission member, the infrared emitter is used to emit infrared rays, and at least part of the infrared rays can pass through the transmission member and radiate to the roller brush; The top surface of the transmission member facing the roller brush is in interference contact with the roller brush, and is a curved surface structure concave downward; The cleaning device further comprises a rear scraper located behind the transmission element, the rear scraper being able to contact the surface to be cleaned during the cleaning process of the cleaning device, and the projections of the transmission element and the rear scraper in the vertical direction are staggered; wherein the rear is opposite to the traveling direction; The projections of the rear scraping strip and the roller brush in the vertical direction at least partially overlap, and the infrared rays passing through the transmission member do not pass through the rear scraping strip.

2. The base according to claim 1, characterized in that: The cleaning device also includes a front scraper for scraping off dirt on the surface to be cleaned. The front scraper is arranged at the front side of the cleaning device in the travel direction. When the cleaning device is located on the base, the infrared rays passing through the transmission member do not pass through the front scraper.

3. The base according to claim 1, characterized in that: The cleaning device further comprises a roller brush cover plate, which at least partially covers the roller brush, and the infrared rays passing through the transmission member do not pass through the roller brush cover plate.

4. The base according to any one of claims 1 to 3, characterized in that: The roller brush has a central section and a central vertical line, the central vertical line is perpendicular to the traveling direction, and the central vertical line passes through the center of the central section; among the infrared rays passing through the transmission element, the light rays away from the central vertical line form an acute angle α with the central vertical line in the vertical direction, and the value range of α is 0°-45°.

5. The base according to claim 4, characterized in that: The projection coverage area of ​​the transmission member in the vertical direction is set as D1, and the non-overlapping area of ​​the projection of the roller brush in the vertical direction and D1 is set as D2 and D3 respectively, wherein the rear scraper strip is at least partially located in D3; The intersection of the central vertical line and the top surface of the transmission member facing the roller brush is taken as the reference origin, and the radiation intensity value of the reference origin is set to R. The radiation intensity value of any point D2 and D3 does not exceed 0.3R.

6. The base according to claim 5, characterized in that: The length of the overlapping portion of the rear scraper strip and the roller brush in the vertical direction is 1 / 4-1 / 12 of the diameter of the roller brush; The transmission member is within the projection range of the roller brush along the vertical direction, and the width of the transmission member is 1 / 2-4 / 5 of the diameter of the roller brush.

7. The base according to claim 6, characterized in that: The distance between the top of the infrared emitter and the bottom surface of the transmission member facing away from the roller brush is 3-6 mm.

8. The base according to claim 7, characterized in that: The thickness of the transmission element is 3-6 mm.

9. The base according to claim 1, characterized in that: The curvature radius of the interference contact portion between the transmission member and the roller brush is 2-3 times the radius of the roller brush.

10. The base according to claim 1, characterized in that: The infrared heating device further comprises a reflective member, which is located on a side of the infrared emitter facing away from the roller brush, and at least part of the infrared rays are reflected by the reflective member to the transmission member, and radiated to the roller brush through the transmission member; The side of the reflector facing the infrared emitter is at least partially a curved structure, and the curved structure is a parabola shape. If the lowest point of the curved structure is taken as the origin, the axis of symmetry of the curved structure is the Y axis, and the horizontal plane passing through the origin, perpendicular to the Y axis, and parallel to the horizontal plane tangent to the origin is taken as the X axis, then the parabola shape satisfies the following condition: Y=AX², where A is a positive number.

11. The base according to claim 1, characterized in that: An air duct is provided inside the base body, and the base further comprises a fan for blowing air into the air duct; The infrared heating device also includes a heat sink and a reflective element, the heat sink is located below the infrared emitter and in the air duct; the reflective element and the transmissive element are jointly arranged to form a chamber, and the infrared emitter is located in the chamber; at least part of the infrared rays are reflected by the reflective element to the transmissive element, and radiated to the roller brush through the transmissive element, and the airflow blown out by the fan at least passes through the heat sink to transfer the heat of the heat sink to the roller brush.

12. The base according to claim 11, characterized in that: The bottom of the reflector has an opening communicating with the chamber, and the heat sink is opposite to the opening; The length of the heat sink is greater than or equal to the length of the opening; and / or the width of the heat sink is greater than or equal to the width of the opening.

13. The base according to claim 12, characterized in that: The air duct comprises at least two sub-air ducts distributed along the width direction of the base body, and the at least two sub-air ducts can respectively direct the airflow to different axial positions of the roller brush; The heat dissipation element is located in at least one of the sub-air ducts.

14. The base according to claim 13, characterized in that: The heat sink comprises a heat sink substrate and a plurality of fins, wherein the plurality of fins are spaced apart along the axial direction of the infrared emitter, wherein the length direction of the infrared emitter is parallel to the axis of the roller brush; The fin is disposed in at least one of the sub-air ducts.

15. A base, characterized in that: The base comprises: A base body, the base body being provided with a cleaning groove for accommodating a roller brush of a cleaning device, the cleaning device being able to move along a preset travel direction on a surface to be cleaned; The infrared heating device comprises an infrared emitter and a transmission member; the transmission member is located below the roller brush, the infrared emitter is located below the transmission member, the infrared emitter is used to emit infrared rays, and at least part of the infrared rays can be radiated to the roller brush through the transmission member; The top surface of the transmission member facing the roller brush is in interference contact with the roller brush, and is a curved surface structure concave downward; The cleaning device further comprises a rear scraper located behind the transmission member, wherein the rear scraper can contact the surface to be cleaned during the cleaning process of the cleaning device; wherein the rear is opposite to the travel direction; Taking the vertical plane tangent to the rear side of the roller brush facing away from the travel direction as the reference plane, the ratio of the distance from the rear edge of the transmission member facing away from the travel direction to the reference plane to the distance from the front edge below the rear scraper strip to the reference plane is: 1.02-4.

0.

16. A cleaning system, characterized in that: The cleaning system comprises: The base according to any one of claims 1 to 15; A cleaning device, wherein the cleaning device comprises a roller brush. When the cleaning device is located on the base, the roller brush is located in the cleaning tank.

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