Heater for a cleaning device and cleaning device, cleaning system

Abstract

The application is suitable for the technical field of cleaning equipment, and provides a heater for a cleaning equipment, a cleaning equipment and a cleaning system. The heater for the cleaning equipment comprises a shell and a heating body. A heat conduction member and a containing cavity are arranged in the shell. The heat conduction member separates the containing cavity to obtain a first heating passage and a second heating passage which are independent of each other. The first heating passage has a first outlet, and the second heating passage has a second outlet. At least part of the heating body is located in the shell and is in heat conduction connection with the heat conduction member. The heater and the cleaning equipment provided by the application have the function of preparing steam and hot water at the same time, so as to improve the use experience of users.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment, and more specifically, relates to a heater for cleaning equipment and cleaning equipment and cleaning system. Background Technology

[0002] With the iterative updates and development of technology, cleaning equipment has also diversified. Currently, the cleaning effect of cleaning equipment is relatively poor, affecting the user experience. Utility Model Content

[0003] This application aims to address the problem that existing heaters, cleaning equipment, and cleaning systems cannot simultaneously produce steam and hot water, so as to improve the user experience of heaters, cleaning equipment, and cleaning systems to at least some extent.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] In a first aspect, a heater for a cleaning device is provided, comprising a housing and a heating element, wherein a heat-conducting element and a receiving cavity are disposed within the housing, the heat-conducting element separating the receiving cavity to obtain a first heating passage and a second heating passage that are independent of each other, the first heating passage having a first outlet and the second heating passage having a second outlet; at least a portion of the heating element is located within the housing and is thermally connected to the heat-conducting element.

[0006] In one feasible embodiment, the heater further includes a liquid conduit for conveying liquid, at least a portion of which is thermally connected to the heat-conducting element to form the second heating path.

[0007] In one feasible implementation, the liquid guiding pipe is integrally formed with the heat-conducting component, or the liquid guiding pipe and the heat-conducting component are detachably connected.

[0008] In one feasible implementation, the fluid conduit includes at least a curved section and a straight section.

[0009] In one feasible implementation, the heat-conducting element is integrally formed with the housing, and the second heating passage is formed within the heat-conducting element.

[0010] In one feasible implementation, at least a portion of the heating element is located within the heat-conducting element.

[0011] In one feasible implementation, the surface of the heat-conducting element facing the first heating passage is a heat exchange surface, which is used to heat the liquid located in the first heating passage to form steam.

[0012] In one feasible implementation, the housing is provided with a first inlet and a first outlet that are connected to the first heating passage;

[0013] The heat exchange surface includes a first heat exchange surface and a second heat exchange surface arranged adjacent to each other, wherein the orthographic projection of the first heat exchange surface along the height direction at least partially overlaps with the orthographic projection of the first inlet along the height direction; and / or, the projection of the second heat exchange surface along the first direction at least partially overlaps with the projection of the first outlet along the first direction.

[0014] The first direction is the direction from the orthographic projection of the first inlet onto the surface to be cleaned to the orthographic projection of the first outlet onto the surface to be cleaned.

[0015] In one feasible implementation, the first heating passage includes a heating section and a scale-collecting section arranged sequentially along the first direction, wherein the scale-collecting section is arranged closer to the first outlet than the heating section.

[0016] In one possible implementation, at least a portion of the scale-collecting section is located below the heating section along the height direction;

[0017] And / or, along the height direction, at least a portion of the first outlet is located below the heating element.

[0018] In one feasible implementation, a limiting space is provided within the heat-conducting component, and at least a portion of the heating element is installed within the heat-conducting component via the limiting space;

[0019] Wherein, along the height direction, at least a portion of the heating element is located above the midpoint of the heat-conducting element, and / or, the heating element is integrally formed with the heat-conducting element.

[0020] In one feasible implementation, the heater further includes a liquid inlet pipe that extends through the first inlet into the first heating passage and points toward the first heat exchange surface.

[0021] And / or, along the first direction, the distance between one end of the liquid inlet pipe extending into the first heating passage and one end of the heating element extending into the housing is a first dimension, and the dimension of the heating element in the first direction is a second dimension, wherein the first dimension is smaller than the second dimension.

[0022] In one possible implementation, the first dimension is less than half of the second dimension, and / or the absolute value of the difference between the first dimension and the second dimension is greater than or equal to 15 mm.

[0023] In one possible implementation, the housing includes a connected end cap and a body, with the first outlet opening on the end cap and the first inlet opening on the body;

[0024] And / or, a seal is provided between the end cap and the body;

[0025] And / or, a filter screen is provided inside the housing, and the filter screen is located in the first heating passage.

[0026] In one possible implementation, the heater further includes a temperature control component, which is fixedly disposed on the outer wall of the housing.

[0027] In one feasible implementation, the heater further includes a mounting plate fixedly disposed on the outside of the housing, and the temperature control component is fixed on the mounting plate;

[0028] And / or, the temperature control component includes a self-resetting temperature protector, a temperature control protector, and a temperature sensor.

[0029] In a second aspect, this application provides a cleaning device including the heater described in any of the foregoing claims.

[0030] In one feasible implementation, the cleaning device further includes a floor brush assembly configured to spray steam and / or hot water generated by the heater onto the surface to be cleaned.

[0031] In a third aspect, this application provides a cleaning system, including a cleaning device and a cleaning base station, wherein the cleaning device is any of the cleaning devices described above, and the cleaning base station is used to park the cleaning device.

[0032] Compared with the prior art, this application includes at least the following beneficial effects:

[0033] The heater for cleaning equipment provided in this application embodiment can simultaneously heat the fluid in the first heating passage and the second heating passage through a heat-conducting component under the heating action of the heating element. By adjusting the flow rate in the first and second heating passages, the heater can simultaneously produce hot water and steam, thereby effectively improving the user experience of the heater. In addition, the heater can effectively reduce the assembly process by integrally molding the heating element and the heat-conducting component with the shell. At the same time, wrapping the heating element with the heat-conducting component can not only increase the heat exchange area between the heating element and the first and second heating passages, but also improve the problem of local overheating of the heating element and improve the reliability of the heating element to a certain extent.

[0034] The cleaning equipment and cleaning system provided in this application include the heaters for cleaning equipment described above. Therefore, the beneficial effects of the cleaning equipment and cleaning system including any one or more of the heaters described above will not be repeated here. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure of a heater for cleaning equipment provided in an embodiment of this application;

[0037] Figure 2 A side view of a heater for a cleaning device provided in an embodiment of this application;

[0038] Figure 3 A top view of a heater for a cleaning device provided in an embodiment of this application;

[0039] Figure 4 for Figure 3 Schematic diagram of the AA-direction cross-section structure;

[0040] Figure 5 for Figure 3 Schematic diagram of the BB-direction cross-sectional structure in the middle;

[0041] Figure 6 This is a partial structural schematic diagram of a heater for a cleaning device provided in an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of the liquid guiding pipe in the heater of a cleaning equipment provided in an embodiment of this application;

[0043] Figure 8 This is a schematic diagram of the structure of the heating element in a heater for cleaning equipment provided in an embodiment of this application;

[0044] Figure 9 This is a schematic diagram showing the relative positions of the heating element and the liquid guiding pipe provided in an embodiment of this application;

[0045] Figure 10 This is a schematic diagram of the cleaning system provided in an embodiment of this application.

[0046] The following are the labeling elements in the figure:

[0047] 1000. Cleaning system; 100. Cleaning equipment; 200. Cleaning base station; 10. Heater;

[0048] 1. Housing; 101. First inlet; 102. First outlet; 11. End cap; 12. Main body; 13. Sealing element; 14. Filter screen; 2. Heat-conducting element; 21. Heat exchange surface; 211. First heat exchange surface; 212. Second heat exchange surface; 22. Limiting space; 3. Receiving cavity; 301. First heating passage; 301a. Heating section; 301b. Scale storage section; 301c. Water storage section; 302. Second heating passage; 4. Heating element; 5. Liquid guiding pipe; 501. Second inlet; 502. Second outlet; 51. Bending section; 52. Straight section; 6. Liquid inlet pipe; 7. Temperature control component; 71. Self-resetting temperature protector; 72. Temperature protector; 73. Temperature sensor; 8. Fastener; 9. Mounting plate. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] This application provides a heater 10 for a cleaning device, a cleaning device 100, and a cleaning system 1000. The cleaning device 100 includes the heater 10. When the heater 10 is working, the hot fluid generated can be released to the surface of the cleaning device to be cleaned, thereby enhancing the cleaning effect of the cleaning device 100 by increasing the temperature.

[0057] The cleaning equipment 100 can be a floor scrubber, a sweeping robot, a floor cleaning robot, or other floor cleaning equipment used to clean the floor, or other cleaning equipment with functions such as cleaning walls and windows.

[0058] Understandably, the cleaning device 100 can be a device capable of cleaning the surface to be cleaned via a floor brush assembly. The cleaning device 100 can deliver cleaning fluid to the floor brush assembly, which, through rotation, generates friction with the surface to be cleaned. This friction, combined with the cleaning fluid, separates dirt from the surface, achieving the desired cleaning effect. Simultaneously, the cleaning device 100 also includes a wastewater collection module, comprising a wastewater tank and a motor. The motor's operation maintains negative pressure in the wastewater tank, which is connected to the floor brush assembly via a suction pipe. Cleaning fluid containing dissolved dirt can then be drawn into the wastewater tank through the suction pipe.

[0059] When the cleaning equipment 100 starts working, the heater 10 can deliver a certain amount of heated fluid to the floor brush assembly, thereby further improving the cleaning efficiency of the floor brush assembly on the surface to be cleaned through high-temperature heating and other methods. At the same time, the high-temperature fluid also has a certain bactericidal function, which can achieve sterilization and disinfection of the surface to be cleaned to a certain extent.

[0060] This application provides a heater 10 for a cleaning device 100. Please refer to [link / reference]. Figures 1-9 This heater 10 can improve the user experience.

[0061] Figure 1 This is a schematic diagram of the overall structure of the heater 10 for cleaning equipment provided in an embodiment of this application. Figure 2 This is a side view of the heater 10 for cleaning equipment provided in an embodiment of this application. Figure 3 This is a top view of the heater 10 for cleaning equipment provided in an embodiment of this application. Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section structure. Figure 5 for Figure 3 Schematic diagram of the BB-direction cross-section structure. Figure 6 This is a partial structural schematic diagram of the heater 10 for cleaning equipment provided in an embodiment of this application. Figure 7 This is a schematic diagram of the liquid guiding pipe 5 in the heater 10 for cleaning equipment provided in this application embodiment. Figure 8 This is a schematic diagram of the structure of the heating element 4 in the heater 10 for cleaning equipment provided in an embodiment of this application. Figure 9 This is a schematic diagram showing the relative positions of the heating element 4 and the liquid guiding pipe 5 provided in an embodiment of this application.

[0062] Please see Figures 1-3 The heater 10 for cleaning equipment includes a housing 1, a heating element 4, and a temperature control assembly 7 located outside the housing 1. Figure 1 and Figure 2Taking the orientation shown as an example, the heating element 4 extends at least partially into the housing 1 along the first direction X to heat the interior of the housing 1. The temperature control component 7 is fixedly installed on the lower surface of the housing 1, and a first inlet 101 is provided on the upper surface of the housing 1. Along the first direction X, the housing 1 includes a fixedly connected end cap 11 and a main body 12, wherein the end cap 11 is located at one end of the main body 12 in the first direction X, and a first outlet 102 is provided on the end cap 11 to maintain communication with the first inlet 101. The heating element 4 is installed on the main body 12 at one end opposite to the end cap 11 and is arranged opposite to the first outlet 102 in the first direction X. In addition, a liquid guiding pipe 5 is also installed on the housing 1 of the heater 10. The middle part of the liquid guiding pipe 5 is located inside the housing 1, and both ends extend out of the housing 1. When the heater 10 is working, the fluid to be heated (such as pure water) can be input into the shell 1 through the first inlet 101 and one end of the liquid guiding pipe 5 respectively. The heater 10 heats the fluid flowing into the shell 1 and outputs it through the first outlet 102 and the other end of the liquid guiding pipe 5. One outlet is used to output steam and the other outlet is used to output hot water, so that the heater 10 can simultaneously produce steam and hot water.

[0063] The temperature control component 7 located on the lower surface of the housing 1 can be fixedly connected to the housing 1 via the mounting plate 9 fixedly installed on the outside of the housing 1.

[0064] Please see Figure 2 The mounting plate 9 is fixedly mounted to the outside of the housing 1 by fasteners 8, and the temperature control assembly 7 is fixedly mounted on the mounting plate 9. The temperature control assembly 7 includes a self-resetting temperature protector 71, a temperature control protector 72, and a temperature sensor 73 arranged at intervals. The self-resetting temperature protector 71, the temperature control protector 72, and the temperature sensor 73 are all fixedly connected to the housing 1 by being fixed to the mounting plate 9. For example, the mounting plate 9 is provided with through holes, and the self-resetting temperature protector 71, the temperature control protector 72, and the temperature sensor 73 can be inserted through the through holes to achieve a fixed connection with the mounting plate 9; of course, they can also be fixedly connected to the mounting plate 9 by snap-fit ​​or other limiting methods disclosed in related technologies.

[0065] The mounting plate 9 allows for the simultaneous fixing of multiple different sensors, which helps reduce the assembly difficulty and complexity of the temperature components. This allows for the rapid installation and fixing of the temperature control components 7 using fewer fasteners 8, simplifying the assembly steps and reducing the assembly difficulty. It also reduces the number of fasteners 8 used.

[0066] Specifically, the fastener 8 can be a screw or similar structure with external threads, and the mounting plate 9 can be a steel pressure plate or similar plate-like structure with threaded holes. The mounting plate 9 is threadedly connected to the housing 1 via the fastener 8 to securely fix it to the outside of the housing 1.

[0067] It should be noted that any one of the sensors in the temperature control assembly 7 fixed on the mounting plate 9 is arranged adjacently and is in contact with the outer wall of the housing 1, so as to achieve more accurate detection of the temperature of the housing 1.

[0068] In some embodiments, the temperature sensor 73 is used to detect the temperature of the housing 1 and can convert the detected temperature data into an electrical signal, which is then transmitted to a controller electrically connected to the temperature sensor 73. The controller may be a microprocessor or other structure with data processing capabilities. The temperature control protector 72 includes a non-resettable fuse that can disconnect when the temperature at the housing 1 exceeds a set safety value, thereby disconnecting the heater 10 from the circuit and providing temperature protection. Compared to the temperature control protector 72, the self-resetting temperature protector 71 has the function of automatically reconnecting the circuit: when the temperature rises to a certain value, the self-resetting temperature protector 71 can control the heater 10 to disconnect from the circuit, and after the temperature drops to a safe range, it can control the heater 10 to automatically reconnect to the circuit.

[0069] The internal structure of shell 1 is described below:

[0070] Please see Figure 4 and Figure 5 The shell 1, which is formed by connecting the main body 12 and the end cap 11, is a hollow structure with a cavity 3 inside. At the same time, a heat-conducting element 2 is also provided inside the shell 1. The heat-conducting element 2 can separate the cavity 3 and obtain a first heating passage 301 and a second heating passage 302 that are independent of each other. At least part of the heating element 4 is located inside the shell 1 and is thermally connected to the heat-conducting element 2.

[0071] It should be noted that a thermally conductive connection refers to a connection method that uses special materials or structures to create a high-conduction path between a heat source and a heat dissipation structure, thereby rapidly dissipating heat. Thermally conductive connections can be direct contact, where the objects needing heat transfer can exchange heat through physical contact; they can also be non-contact, where heat is transferred without direct physical contact, such as radiative heat conduction, microwave heat conduction, and electromagnetic heat conduction.

[0072] At least a portion of the heating element 4 is located within the heat-conducting element 2. When the heating element 4 is in operation, the heat generated by the heating element 4 can be simultaneously conducted to the first heating passage 301 and the second heating passage 302 through the heat-conducting element 2. The heat-conducting element 2 can conduct the heat generated by the heating element 4 to the first heating passage 301 and the second heating passage 302 respectively, so as to achieve simultaneous heating of two independent passages.

[0073] As two independent heating spaces, the first heating passage 301 and the second heating passage 302 can respectively heat the fluid located therein to generate steam and / or hot water.

[0074] The first heating passage 301 is connected to the first inlet 101 and the first outlet 102, that is, the heating passage 201 has the first inlet 101 and the first outlet 102; the second heating passage 302 is connected to the liquid guiding pipe 5.

[0075] In practical use, the heating products of the first heating passage 301 and the second heating passage 302 can be adjusted by changing their actual spatial size and the flow rate of the liquid flowing into them. This embodiment does not limit this.

[0076] The housing 1 also includes a seal 13 and a filter 14, with the seal 13 located between the end cap 11 and the main body 12. When the heater 10 is running, the seal 13 tightly fits the end cap 11 and the main body 12, preventing external substances such as liquids and dust from entering the housing 1 through the connection between the end cap 11 and the main body 12, thereby protecting the components inside the housing 1 from external interference and also helping to prevent water and steam from leaking from the connection between the two. The filter 14 is located inside the first heating passage 301 and close to the end cap 11, and can be used to filter the fluid flowing through the first heating passage 301 to help prevent scale and other impurities from being discharged through the first outlet 102, thus avoiding scale clogging the first outlet 102.

[0077] Specifically, the seal 13 can be a silicone pad, etc., in which case the seal 13 also has a certain effect of blocking heat conduction.

[0078] The internal structure of the heater 10 will be described below, taking the first heating passage 301, which is mainly used to generate steam, and the second heating passage 302, which is mainly used to generate hot water, as an example.

[0079] It should be noted that "mainly used to generate steam" means that the product of heating is mainly steam, and may also include a certain amount of high-temperature droplets; "mainly used to generate hot water" means that the product of heating is mainly hot water, and the hot water will produce a small amount of water vapor.

[0080] Please see Figure 4 and Figure 5 The heat-conducting component 2 is integrally formed with the housing 1. A second heating passage 302 is formed within the heat-conducting component 2. Correspondingly, the outer sidewall of the heat-conducting component 2 mates with the inner sidewall of the housing 1 to form a first heating passage 301. Due to the separating effect of the heat-conducting component 2, the first heating passage 301 and the second heating passage 302 formed inside the housing 1 remain independent of each other, and both can be thermally connected to the heat-conducting component 2. The temperature control component 7 is attached to the housing 1 and disposed adjacent to the heat-conducting component 2.

[0081] Please see Figure 4 and Figure 5 At least a portion of the liquid guiding pipe 5 forms a second heating passage 302 by being thermally connected to the heat-conducting element 2.

[0082] In some embodiments, the liquid guiding pipe 5 can be detachably connected to the heat conducting element 2.

[0083] Specifically, the liquid guiding pipe 5 can be detachably connected to the heat-conducting component 2 by being partially embedded inside the heat-conducting component 2. At this time, the outer wall of the liquid guiding pipe 5 needs to be in contact with the inner wall of the heat-conducting component 2 or a certain amount of heat radiation can be generated between them. At least part of the structure of the liquid guiding pipe 5 located inside the heat-conducting component 2 constitutes the second heating passage 302.

[0084] In some embodiments, the liquid guiding channel 5 can be integrally formed with the heat conducting element 2. For example, the liquid guiding channel 5 can be integrally formed with the heat conducting element 2 by casting.

[0085] When the liquid guiding pipe 5 is connected to the heat conducting component 2 by casting, it can not only effectively improve the processing speed of the heat conducting component 2 and reduce the manufacturing difficulty of the heat conducting component 2, but also increase the contact area between the liquid guiding pipe 5 and the heat conducting component 2 to a certain extent, thereby making the liquid guiding pipe 5 and the heat conducting component 2 have higher heat conduction efficiency.

[0086] Specifically, the heat-conducting component 2 and the housing 1 can be made of cast aluminum. Cast aluminum has superior heat conduction properties; of course, other metal materials with high heat conduction efficiency can also be used to make the heat-conducting component 2 and the housing 1.

[0087] When preparing the heat-conducting component 2 by casting, the liquid guiding channel 5 can be processed according to the design requirements first. Then, the liquid guiding channel 5 is placed in the corresponding casting mold, and the heat-conducting component 2 is obtained by die casting. At this time, the heat-conducting component 2 and the liquid guiding channel 5 are integrally formed.

[0088] The pipe can be bent using a pre-forming process to obtain a more complex liquid-conducting pipe 5. The higher the structural complexity of the liquid-conducting pipe 5, the larger the contact area between the liquid-conducting pipe 5 and the heat-conducting component 2, and the higher the heat exchange efficiency. At the same time, the higher the structural complexity of the liquid-conducting pipe 5, the longer its total length. Thus, the liquid-conducting pipe 5 can extend the flow time of the fluid in the pipe, allowing the fluid to obtain more heat from the heat-conducting component 2, thereby increasing the temperature of the liquid discharged through the liquid-conducting pipe 5 to a certain extent.

[0089] Please see Figure 5The liquid guiding pipe 5 extends from the housing 1 at its two ends, forming a second inlet 501 and a second outlet 502, respectively. Low-temperature liquid flows into the liquid guiding pipe 5 through the second inlet 501 and exchanges heat with the heat-conducting element 2. The resulting high-temperature liquid can be discharged through the second outlet 502. It should be noted that the positions of the second inlet 501 and the second outlet 502 in the figure are only illustrative. Without affecting the external piping layout, this embodiment does not limit which end is the second inlet 501 and which end is the second outlet 502; the second inlet 501 and the second outlet 502 can be interchanged and adjusted as needed.

[0090] It should be noted that the fluid guiding channel 5 can be a symmetrical or asymmetrical structure; please refer to [link / reference]. Figure 4 Along the first direction X, one end of the heating element 4 passes through the housing 1 and extends into the heat-conducting component 2.

[0091] In some embodiments, a limiting space 22 is formed within the heat-conducting component 2, and at least a portion of the heating element 4 is installed within the heat-conducting component 2 via the limiting space 22. The heating element 4 can be detachably connected to the heat-conducting component 2, or it can be integrally formed with the heat-conducting component 2.

[0092] Specifically, the heating element 4 can be integrally formed with the heat-conducting component 2 by casting. For example, when preparing the heat-conducting component 2 by casting, the liquid guiding pipe 5 and the heating element 4 described above can be placed in the corresponding casting mold according to the design requirements, and then the heat-conducting component 2 can be obtained by die casting. At this time, the heating element 4 and the liquid guiding pipe 5 are integrally formed with the heat-conducting component 2, and the position of the heating element 4 forms the aforementioned limiting space 22, and the internal space of the liquid guiding pipe 5 forms the aforementioned second heating passage 302.

[0093] When the heating element 4 and the heat-conducting component 2 are integrally formed, the heat generated by the heating element 4 can be conducted through the surface of the heat-conducting component 2 to the first heating passage 301 and the second heating passage 302 respectively, thereby achieving the separate preparation of steam and hot water. Furthermore, with the cooperation of the heat-conducting component 2, this structure helps to improve the problem of localized overheating of the heating element 4, thereby optimizing the surface temperature of the heating element 4. Most importantly, the heat-conducting component 2 can be used to isolate the heating element 4 from the cryogenic fluid to be heated, preventing the heating element from directly contacting the cryogenic fluid and causing stress deformation, thus helping to reduce the possibility of damage to the heating element and giving the heating element 4 a longer service life.

[0094] In some embodiments, the surface of the heat-conducting element 2 facing the first heating passage 301 is a heat exchange surface 21. The heating element 4 can heat the first heating passage 301 through the heat-conducting element 2, resulting in a high temperature inside the first heating passage 301, and simultaneously, a high temperature on the heat exchange surface 21 of the heat-conducting element 2. With the cooperation of the first heating passage 301 and the heat exchange surface 21, liquid flowing into the first heating passage 301 through the first inlet 101 drips onto the heat exchange surface 21 and forms steam. After being reheated through the cavity of the first heating passage 301, the steam can maintain a high temperature and be discharged through the first outlet 102.

[0095] Please see Figure 4 The heat exchange surface 21 located on the side of the heat conductor 2 facing the first heating passage 301 includes a first heat exchange surface 211 and a second heat exchange surface 212 arranged adjacent to each other, wherein the first heat exchange surface 211 is arranged opposite to the first inlet 101, and at least a portion of the second heat exchange surface 212 is arranged opposite to the first outlet 102 along the first direction X.

[0096] It should be noted that the heater 10 is located inside the cleaning device 100, which is used to clean the surface to be cleaned. If the surface to be cleaned is defined as a plane, then the first direction X is the direction from the orthographic projection of the first inlet 101 onto the surface to be cleaned to the orthographic projection of the first outlet onto the surface to be cleaned.

[0097] Specifically, along the height direction of heater 10 (see...) Figure 4 The direction indicated by arrow Y in the figure (the height direction is orthogonal to the first direction) is such that the orthogonal projection of the first heat exchange surface 211 along the height direction at least partially overlaps with the orthogonal projection of the first inlet 101 along the height direction.

[0098] Specifically, along the first direction X, the orthographic projection of the second heat exchange surface 212 along the first direction at least partially overlaps with the orthographic projection of the first outlet 102 along the first direction.

[0099] Liquid flowing into the first heating passage 301 through the first inlet 101 can fall onto the first heat exchange surface 211 and exchange heat with it to form a certain amount of steam. When the flow rate of liquid flowing into the first heating passage 301 through the first inlet 101 is too high, or when the surface temperature of the first heat exchange surface 211 is too low, some liquid will not vaporize. The remaining unvaporized liquid can move along the first heat exchange surface 211 toward the location of the second heat exchange surface 212 and exchange heat with the first heat exchange surface 211 and the second heat exchange surface 212 in sequence during this process, thereby continuously generating steam.

[0100] The first heat exchange surface 211 and the second heat exchange surface 212 work together to effectively increase the heat exchange area between the heat-conducting element 2 and the first heating passage 301, and improve the heat exchange efficiency between the heat-conducting element 2 and the first heating passage 301.

[0101] In some embodiments, the heating element 4 installed in the heat-conducting element 2 is located on the side of the heating element 4 close to the heat exchange surface 21, especially the side close to the first heat exchange surface 211.

[0102] Please see Figure 4 and Figure 5 Along the height direction Y, at least a portion of the heating element 4 is located above the midpoint of the heat-conducting member 2. Specifically, the heat-conducting member 2 has a limiting space 22 for accommodating the heating element 4. Figure 4 The height direction Y of the heat-conducting component 2 is shown. The limiting space 22 is offset relative to the middle of the heat-conducting component 2 towards the side closer to the first heat exchange surface 211. The heating element 4, which is integrally formed with the heat-conducting component 2, is located inside the heat-conducting component 2 on the side closer to the first heat exchange surface 211.

[0103] The above structure helps to further increase the heat exchange area and help provide the surface temperature of the first heat exchange surface 211, so as to ultimately improve the heating efficiency of the heat exchange surface 21.

[0104] To further improve the steam generation efficiency of the heater 10 used for cleaning equipment, in some embodiments, the heater 10 also includes an inlet pipe 6 that extends through the first inlet 101 into the first heating passage 301 and points toward the first heat exchange surface 211.

[0105] Please see Figure 4 and Figure 5 The liquid inlet pipe 6 extends through the first inlet 101 into the first heating passage 301 and protrudes relative to the inner wall of the first heating passage 301 to guide liquid to drip onto the surface of the first heat exchange surface 211. At this time, liquid can flow into the first heating passage 301 through the liquid inlet pipe 6 located at the first inlet 101, thus avoiding the possibility that some liquid, after flowing into the first heating passage 301 through the first inlet 101, might flow along the inner wall of the first heating passage 301 under tension without dripping onto the heat exchange surface 21.

[0106] Specifically, the inlet pipe 6 can be made of metal materials, such as stainless steel. In this case, the inlet pipe 6 is a stainless steel pipe embedded in the first inlet 101.

[0107] In order to further extend the contact time between the droplets that fall from the liquid inlet pipe 6 onto the first heat exchange surface 211 and the first heat exchange surface 211, and improve the heating efficiency of the first heat exchange surface 211 on the droplets, in some embodiments, the distance between one end of the liquid inlet pipe 6 that extends into the first heating passage 301 and the end of the heating body 4 that extends into the housing 1 along the first direction X is defined as the first dimension d1, and the dimension of the heating body 4 in the first direction X is defined as the second dimension d2.

[0108] Please see Figure 4 The first dimension d1 is smaller than the second dimension d2.

[0109] In this embodiment, the first dimension d1 can be set to be less than half of the second dimension d2; and / or, the absolute value of the difference between the first dimension d1 and the second dimension d2 can be set to be greater than or equal to 15mm.

[0110] Specifically, the first dimension d1 is smaller than the second dimension d2, and the difference between the two can be any value among 15mm, 18mm, 20mm, 22mm and 25mm.

[0111] Due to limitations in the manufacturing process, some areas of the heating element 4 lack heating function or have low heating efficiency, and these areas are generally located outside the housing 1 or adjacent to the housing 1. To overcome this problem, the liquid droplets flowing into the first heating passage 301 through the liquid inlet pipe 6 are made to contact, as far as possible, the areas with higher temperatures on the first heat exchange surface 211 of the heat-conducting element 2 (i.e., the unheated parts away from the heating element 4 and the heated parts close to the heating element 4 in the first direction X), so as to fully exchange heat and generate steam.

[0112] The above structural design helps to improve the heating efficiency of heater 10 and the utilization efficiency of the heat generated by heating element 4.

[0113] In some embodiments, the first heating passage 301 includes a heating section 301a and a scale-retaining section 301b sequentially arranged along a first direction X. (See also...) Figure 5 The scale storage section 301b is positioned closer to the first outlet 102 than the heating section 301a.

[0114] Specifically, the scale-collecting section 301b is located on the side of the heating section 301a near the first outlet 102, wherein the heating section 301a is connected to the first inlet 101 and in contact with the heat exchange surface 21, and the scale-collecting section 301b is connected to the first outlet 102.

[0115] During the use of heater 10, as liquid flows into the first heating passage 301 through the first inlet 101 and is heated and atomized within the first heating passage 301, the resulting steam can be discharged through the first outlet 102. When the liquid contains soluble calcium and magnesium compounds, the heating and atomization will also precipitate insoluble calcium or magnesium salts mixed in with the steam. These calcium or magnesium salts, as scale particles, will adhere to the inner wall of the first heating passage 301 when they come into contact with it.

[0116] As the heater 10 is used continuously, scale will accumulate, which may cause blockage of the first heating passage 301. In this embodiment, the structure of the scale storage section 301b and the heating section 301a can be adjusted so that the generated scale can be deposited in the scale storage area as much as possible, so that the housing 1 has a better scale storage capacity and is not easily blocked by scale.

[0117] In some embodiments, along the height direction Y, at least a portion of the scale-collecting section 301b is located below the heating section 301a, and at least a portion of the outer contour of the orthographic projection of the scale-collecting section 301b onto the housing 1 is located on the side of the orthographic projection of the heating section 301a onto the housing 1 closer to the first outlet 102. Figure 4 and Figure 5 Taking the angle shown as an example, at this time, the bottom wall of the scale storage section 301b is recessed downward relative to the bottom wall of the heating section 301a, forming a groove-shaped structure that can store a certain amount of scale.

[0118] To ensure that the scale-collecting section 301b has the above-mentioned groove structure, in some embodiments, the cross-sectional dimension of the scale-collecting section 301b in the first direction X is set to be larger than the cross-sectional dimension of the heating section 301a in the first direction X; or, the scale-collecting section 301b may be offset or bent relative to the heating section 301a toward the lower part of the housing 1.

[0119] In some embodiments, at least a portion of the first outlet 102 is located below the heating element 4 along the height direction Y. In other words, along the first direction X, the orthographic projection of the first outlet 102 on the heat-conducting element 2 is spaced apart from the orthographic projection of the heating element 4 on the heat-conducting element 2, and the orthographic projection of the first outlet 102 on the heat-conducting element 2 is located on the side of the heating element 4 on the heat-conducting element 2 that faces away from the first inlet 101.

[0120] When the heater 10 is first turned on, the heating element 4 is in the heating stage. At this time, the liquid flowing into the first heating passage 301 cannot quickly generate water vapor, resulting in a certain amount of water accumulating in the scale storage section 301b. When the heater 10 is working continuously, affected by the fluctuation of the liquid flow rate in the first heating passage 301, when the flow rate is too large, some of the liquid flowing into the first heating passage 301 will not be able to generate water vapor, which will also cause some water to remain in the shell 1, especially in the scale storage section 301b. After the heater 10 is turned off, some of the water flowing into the first heating passage 301 may not be able to generate water vapor in time and remain in the shell 1 as water.

[0121] As the heater 10 continues to operate, some of the accumulated water can be discharged synchronously with the steam through the first outlet 102. To avoid affecting the normal use of steam, a water-vapor separator can be installed outside the first outlet 102 to achieve effective separation of steam and water. After the heater 10 is turned off, the water remaining in the first heating passage 301 can also be discharged through the first outlet 102.

[0122] Please see Figure 4 and Figure 5 The first outlet 102 is located near the bottom of the housing 1 and is lower than the heat-conducting component 2. This reduces the difficulty of the residual liquid in the first heating passage 301 being discharged from the housing 1 through the first outlet 102 without affecting the normal release of steam, thereby helping to drain the water accumulated in the scale area of ​​the housing 1.

[0123] In some embodiments, to prevent scale from clogging the first outlet 102, the first outlet 102 should be positioned higher than the bottom wall of the scale storage area. When the user needs to drain the water, the water in the scale storage section 301b can be directed to the first outlet 102 and discharged through it by tilting the heater 10.

[0124] Please refer to the internal structure of the heater 10 provided in this embodiment. Figure 6 The heat-conducting component 2 is located inside the shell 1 and is integrally formed with the shell 1. The outer wall of the heat-conducting component 2 and the inner wall of the shell 1 enclose the first heating passage 301 for generating steam. The liquid inlet pipe 6 is inserted into the first inlet 101 formed above the heat-conducting component 2. The heat-conducting component 2 is arranged opposite to the liquid inlet pipe 6 through the first heat exchange surface 211.

[0125] Please see Figure 5 and Figure 6The first heating passage 301 also includes a water storage section 301c, which can simultaneously connect the heating section 301a and the scale storage section 301b. At this time, a certain gap exists between the heat-conducting element 2 and the inner wall of the first heating passage 301 along a direction perpendicular to the first direction X and the height direction Y; this gap can form the water storage section 301c. This structure can increase the total area of ​​the heat exchange surface 21 of the heat-conducting element 2.

[0126] The low-temperature fluid flowing into the first heating passage 301 through the first inlet 101, after contacting the first heat exchange surface 211, allows some of the fluid that fails to form steam to flow along the first heat exchange surface 211 into the water storage section 301c and contact the surface of the heat-conducting element 2 facing the water storage section 301c for continuous heat exchange, thereby helping to improve the heat exchange efficiency of the heat-conducting element 2 and enhancing the steam generation efficiency. When the cleaning equipment 100 is in use / operation, the heater 10 is in an inclined state, and the fluid flowing into the water storage section 301c that fails to generate steam can flow along the first direction to the scale storage section 301b and finally be discharged from the housing 1 through the first outlet 102.

[0127] Both the liquid guiding pipe 5 and the heating element 4 are located within the heat-conducting component 2 and are integrally formed with the heat-conducting component 2. Please refer to [link / reference]. Figures 7-9 .

[0128] In some embodiments, the fluid conduit 5 includes at least a curved section 51 and a straight section 52. See also... Figure 7 The liquid guiding pipe 5 is composed of multiple spaced-apart curved sections 51 and straight sections 52 connected in sequence. With the size of the heat-conducting component 2 remaining unchanged, increasing the complexity of the liquid guiding pipe 5 and forming a complex geometric structure helps to increase the outer surface size of the liquid guiding pipe 5, thereby increasing the heat exchange area between the liquid guiding pipe 5 and the heat-conducting component 2.

[0129] Specifically, the aforementioned curved segment 51 includes at least one of a variety of different structures such as spiral, serpentine, and arc.

[0130] In some embodiments, the heating element 4 has a U-shaped structure; please refer to [link / reference]. Figure 8 .

[0131] Please refer to the relative positions of the heating element 4 and the liquid guiding pipe 5. Figure 9 The heat generated by the heating element 4 can be applied to the liquid guiding pipe 5 through the heat conducting element 2, and uniformly heat different areas of the liquid guiding pipe 5; at the same time, the heating element 4 does not directly contact the liquid guiding pipe 5, so as to help extend the service life and reliability of the heating element 4.

[0132] It is understood that the embodiments of this application provide a heater 10 for use in a cleaning device 100 that can simultaneously generate steam and hot water, thereby effectively improving the user experience of the heater 10 and the cleaning device 100 having the heater 10. In addition, the heater 10 can effectively reduce assembly steps by integrally molding the heating element 4 and the heat-conducting component 2 with the housing 1. At the same time, by wrapping the heating element 4 with the heat-conducting component 2, not only can the heat exchange area between the heating element 4 and the first heating passage 301 and the second heating passage 302 be increased, but the problem of local overheating of the heating element 4 can also be improved, and the reliability of the heating element 4 can be improved to a certain extent.

[0133] In a second aspect, embodiments of this application also provide a cleaning device 100, which includes the heater 10 described in any of the preceding claims.

[0134] Specifically, the cleaning equipment 100 can be a floor scrubber, a sweeping robot, a steam mop, or other floor cleaning equipment 100 used to clean the floor, or other cleaning equipment 100 with functions such as cleaning walls and windows.

[0135] When the cleaning equipment 100 is a floor scrubber, the cleaning equipment 100 also includes a floor brush assembly, which is configured to spray steam and / or hot water generated by the heater 10 onto the surface to be cleaned.

[0136] During the use of the cleaning equipment 100, the heater 10 can deliver steam and / or hot water to the floor brush assembly to improve the cleaning effect of the floor brush assembly on the surface to be cleaned and enhance the user experience.

[0137] In a third aspect, embodiments of this application also provide a cleaning system 1000, which includes the cleaning device 100 described in any of the above claims, and also includes a cleaning base station 200. Please refer to [link to relevant documentation]. Figure 10 .

[0138] Figure 10 This is a schematic diagram of the cleaning system provided in an embodiment of this application.

[0139] The cleaning base station 200 is used to park at least 100 cleaning equipment.

[0140] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0141] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heater for cleaning equipment, characterized in that, include: A housing (1) is provided with a heat-conducting element (2) and a receiving cavity (3) inside the housing (1). The heat-conducting element (2) separates the receiving cavity (3) to obtain a first heating passage (301) and a second heating passage (302) that are independent of each other. The first heating passage (301) has a first outlet (102) and the second heating passage (302) has a second outlet (502). The heating element (4) is at least partially located within the housing (1) and is thermally connected to the heat-conducting element (2).

2. The heater for cleaning equipment according to claim 1, characterized in that, The heater (10) further includes a liquid conduit (5) for conveying liquid, at least a portion of which is thermally connected to the heat conductor (2) to form the second heating passage (302).

3. The heater for cleaning equipment according to claim 2, characterized in that, The liquid guiding pipe (5) and the heat conducting component (2) are integrally formed. Alternatively, the liquid guiding pipe (5) can be detachably connected to the heat-conducting component (2).

4. The heater for cleaning equipment according to claim 2, characterized in that, The fluid conduit (5) includes at least a curved section (51) and a straight section (52).

5. The heater for cleaning equipment according to claim 1, characterized in that, The heat-conducting component (2) is integrally formed with the housing (1), and the second heating passage (302) is opened in the heat-conducting component (2).

6. The heater for cleaning equipment according to claim 1, characterized in that, At least a portion of the heating element (4) is located within the heat-conducting element (2).

7. The heater for cleaning equipment according to claim 1, characterized in that, The surface of the heat-conducting element (2) facing the first heating passage (301) is a heat exchange surface (21), which is used to heat the liquid in the first heating passage (301) to form steam.

8. The heater for cleaning equipment according to claim 7, characterized in that, The housing (1) is provided with a first inlet (101) and a first outlet (102) that are connected to the first heating passage (301); The heat exchange surface (21) includes a first heat exchange surface (211) and a second heat exchange surface (212) arranged adjacent to each other. The orthographic projection of the first heat exchange surface (211) along the height direction at least partially overlaps with the orthographic projection of the first inlet (101) along the height direction; and / or the projection of the second heat exchange surface (212) along the first direction at least partially overlaps with the projection of the first outlet (102) along the first direction. The first direction is the direction from the orthographic projection of the first inlet (101) onto the surface to be cleaned to the orthographic projection of the first outlet onto the surface to be cleaned.

9. The heater for cleaning equipment according to claim 8, characterized in that, The first heating passage (301) includes a heating section (301a) and a scale-collecting section (301b) arranged sequentially along the first direction, wherein the scale-collecting section (301b) is arranged closer to the first outlet (102) relative to the heating section (301a).

10. The heater for cleaning equipment according to claim 9, characterized in that, Along the height direction, at least a portion of the scale-collecting section (301b) is located below the heating section (301a); And / or, along the height direction, at least a portion of the first outlet (102) is located below the heating element (4).

11. The heater for cleaning equipment according to claim 9, characterized in that, A limiting space (22) is provided in the heat-conducting component (2), and at least a portion of the heating element (4) is installed in the heat-conducting component (2) through the limiting space (22); Wherein, along the height direction, at least a portion of the heating element (4) is located above the midpoint of the heat-conducting element (2), and / or, the heating element (4) is integrally formed with the heat-conducting element (2).

12. The heater for cleaning equipment according to claim 9, characterized in that, The heater (10) also includes a liquid inlet pipe (6), which passes through the first inlet (101), extends into the first heating passage (301), and points towards the first heat exchange surface (211). And / or, along the first direction, the distance between one end of the liquid inlet pipe (6) extending into the first heating passage (301) and one end of the heating element (4) extending into the housing (1) is a first dimension, and the dimension of the heating element (4) in the first direction is a second dimension, wherein the first dimension is smaller than the second dimension.

13. The heater for cleaning equipment according to claim 12, characterized in that, The first dimension is less than half the second dimension; and / or the absolute value of the difference between the first dimension and the second dimension is greater than or equal to 15 mm.

14. The heater for cleaning equipment according to claim 8, characterized in that, The housing (1) includes a connected end cap (11) and a body (12), the first outlet (102) is opened on the end cap (11), and the first inlet (101) is opened on the body (12); And / or, a sealing element (13) is provided between the end cap (11) and the body (12); And / or, a filter screen (14) is provided inside the housing (1), and the filter screen (14) is located inside the first heating passage (301).

15. A heater for cleaning equipment according to any one of claims 1-14, characterized in that, The heater (10) also includes a temperature control component (7), which is fixedly disposed on the outer side wall of the housing (1).

16. The heater for cleaning equipment according to claim 15, characterized in that, The heater (10) also includes a mounting plate (9) fixedly disposed on the outside of the housing (1), and the temperature control component (7) is fixed on the mounting plate (9); And / or, the temperature control component (7) includes a self-resetting temperature protector (71), a temperature control protector (72), and a temperature sensor (73).

17. A cleaning device, characterized in that, Includes the heater (10) according to any one of claims 1-16.

18. The cleaning equipment according to claim 17, characterized in that, The cleaning device (100) also includes a floor brush assembly configured to spray steam and / or hot water generated by the heater (10) onto the surface to be cleaned.

19. A cleaning system, characterized in that, The cleaning system (1000) includes a cleaning device (100) and a cleaning base station (200), the cleaning device (100) including the cleaning device (100) according to claim 17 or 18, and the cleaning base station (200) for parking the cleaning device (100).

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