Underwater germicidal lamp and cleaning robot for swimming pool

Abstract

The present application discloses a cleaning robot for a swimming pool, comprising a housing defining an accommodating cavity, a power assembly connected to the housing, an underwater germicidal lamp, and a filtering assembly and a pump assembly accommodated in the housing. A water inlet and a water outlet which are in fluid communication with each other are formed in the housing. The power assembly is used for providing power to drive the cleaning robot for a swimming pool to move in the swimming pool. The filtering assembly is provided with a filtering cavity which is in fluid communication with the water inlet and the water outlet, and the pump assembly is used for driving water to enter the accommodating cavity from the water inlet and to be discharged from the water outlet after being filtered by the filtering assembly. The underwater germicidal lamp comprises a base, a light source module fixed to the base, and a lampshade covering the light source module; the light source module comprises a light-emitting element; a light-emitting element area of the lampshade corresponding to the light source module is a light-transmissive area; and a light exit surface of the light-transmissive area is covered with a film. The present application further provides the underwater germicidal lamp.

Description

Underwater germicidal lamp and pool cleaning robot

[0001] The present application claims priority to Chinese Patent Application No. 202420789072.8, filed on April 16, 2024, entitled “Underwater Germicidal Lamp and Pool Cleaning Robot”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of germicidal lamps, in particular to an underwater germicidal lamp and a pool cleaning robot having the same. BACKGROUND

[0003] With the development of pool cleaning robot technology, the market has also put forward higher requirements for it, such as being able to sterilize and disinfect the water body or pool wall while filtering the pool water for cleaning purposes. This can be achieved by setting a germicidal lamp at the water outlet of the robot or the outer wall of the robot bottom. However, the light transmittance of the existing germicidal lamp decreases after a period of use, affecting the sterilization effect, and ultimately causing odor due to the presence of a large number of bacteria, affecting customer experience.

[0004] SUMMARY

[0005] Therefore, the present application provides the following technical solutions:

[0006] The first aspect of the present application provides an underwater germicidal lamp, comprising a base, a light source module fixed to the base, and a lampshade covering the light source module, the light source module comprising a light emitting element, the lampshade corresponding to the light emitting element region of the light source module being a light transmission region, and the light transmission region having a film on the light emitting surface.

[0007] In some embodiments, the film contains ETFE material or FEP material.

[0008] In some embodiments, the film is a tearable film.

[0009] In some embodiments, the light transmission region is glass.

[0010] In some embodiments, the glass is quartz glass.

[0011] In some embodiments, the light source module further comprises a substrate, and the light emitting element is a plurality of lamp beads arranged on the substrate.

[0012] In some embodiments, the light emitting element is a lamp tube.

[0013] In some embodiments, the light transmission region of the lampshade is concave relative to the outer surface of the lampshade.

[0014] In some embodiments, the base has opposite first and second sides, the light source module is disposed on the first side of the base, and the second side of the base is provided with a plurality of heat dissipation fins.

[0015] In some embodiments, the base forms a receiving cavity on one side of the light source module, the light source module is received in the receiving cavity, and the lampshade is sealingly connected to the base so as to seal the receiving cavity.

[0016] In some embodiments, the lampshade is tightly sleeved on the periphery of the base, or the lampshade is connected to the base by fasteners.

[0017] The second aspect of the present application also discloses a swimming pool cleaning robot, which comprises a housing defining a receiving cavity, a power assembly connected to the housing, the above-mentioned underwater sterilization lamp, and a filter assembly and a pump assembly received in the housing. The housing is provided with a water inlet and a water outlet in fluid communication. The power assembly is used to provide power to drive the swimming pool cleaning robot to travel in the swimming pool. The filter assembly has a filter cavity in fluid connection with the water inlet and the water outlet, and the pump assembly is used to drive water flow from the water inlet into the receiving cavity, filtered by the filter assembly, and discharged from the water outlet.

[0018] In some embodiments, the sterilization lamp is arranged on the outer wall of the housing or in the housing.

[0019] In some embodiments, the sterilization lamp is arranged in the receiving cavity of the housing and above, below and / or beside the filter assembly.

[0020] In some embodiments, the sterilization lamp is arranged on the flow channel side wall of the water inlet and irradiates the flow channel area of the water inlet.

[0021] In some embodiments, the sterilization lamp is arranged on the flow channel side wall of the water inlet and irradiates the flow channel area of the water inlet.

[0022] In some embodiments, the sterilization lamp is arranged on the flow channel side wall of the water inlet and irradiates the flow channel area of the water inlet. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0024] Fig. 1 is a perspective view of a pool cleaning robot according to a first embodiment of the present application.

[0025] Fig. 2 is another perspective view of the pool cleaning robot shown in Fig. 1.

[0026] Fig. 3 is a perspective exploded view of the pool cleaning robot shown in Fig. 1.

[0027] Fig. 4 is a perspective exploded view of a germicidal lamp of the pool cleaning robot shown in Fig. 3.

[0028] Fig. 5 is a perspective exploded view of a filter assembly of the pool cleaning robot shown in Fig. 3.

[0029] Fig. 6 is a perspective view of a lower housing of the pool cleaning robot shown in Fig. 1.

[0030] Fig. 7 is a sectional view of the pool cleaning robot shown in Fig. 1.

[0031] Fig. 8 is an enlarged view of the encircled portion in Fig. 7.

[0032] Fig. 9 is a perspective exploded view of a pool cleaning robot according to a second embodiment of the present application.

[0033] Fig. 10 is a perspective exploded view of a filter assembly and a germicidal lamp of the pool cleaning robot shown in Fig. 9.

[0034] Fig. 11 is a sectional view of the pool cleaning robot shown in Fig. 9 in an assembled state.

[0035] Fig. 12 is an enlarged view of the encircled portion in Fig. 11.

[0036] Fig. 13 is an assembly view of a lower housing and a germicidal lamp of a pool cleaning robot according to another embodiment of the present application.

[0037] Fig. 14 is a perspective exploded view of the germicidal lamp shown in Fig. 13.

[0038] Fig. 15 is a view of the germicidal lamp shown in Fig. 14 from another angle.

[0039] Fig. 16 is a structural view of a film of a germicidal lamp according to an embodiment of the present application, wherein the film is preferably constructed of an ETFE tape.

[0040] Fig. 17 is a view of another embodiment of a light source module shown in Fig. 8. DETAILED DESCRIPTION

[0041] In order to make the technical problems solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In this document, "inner side" refers to the side closer to the center of the corresponding component or the center of the entire device, and "outer side" refers to the side away from the center of the corresponding component or the center of the entire device.

[0045] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0046] Figs. 1-8 show a swimming pool cleaning robot 100 according to a first embodiment of the present application, which includes a housing 10 having a receiving cavity 11; a power assembly 20 connected to the housing 10; a sterilization lamp 60 and a pump assembly 40, a filter assembly 50 installed in the receiving cavity 11.

[0047] The power assembly 20 is used to provide power to drive the swimming pool cleaning robot 100 to travel in the swimming pool. In the present embodiment, the power assembly 20 includes a walking assembly 21 and a drive assembly 30. The drive assembly 30 can include a drive motor and a reduction gear box. The walking assembly 21 includes a wheel set 22, and the drive assembly 30 is in transmission connection with the wheel set 22 for driving the wheel set 22 to rotate, thereby driving the swimming pool cleaning robot 100 to move or turn in the swimming pool.

[0048] The shell 10 is provided with a water inlet 12 and a water outlet 13. The sterilization lamp 60 is arranged at the water inlet 12. The sterilization lamp 60 comprises a UV sterilization lamp, preferably a UV-C sterilization lamp, i.e. the sterilization lamp has an ultraviolet wavelength of 200-280 nm, preferably 240-270 nm. The ultraviolet light in this wavelength range has excellent sterilization effect, can directly destroy the DNA and RNA of cells and viruses, and make microorganisms die rapidly, and can effectively decompose ozone in water. Of course, the sterilization lamp 50 can also comprise other sterilization lamps suitable for underwater work.

[0049] Specifically, the sterilization lamp 60 of the embodiment is arranged on the inner wall of the side of the water inlet 12 and extends along the length direction of the water inlet 12, preferably so that the entire flow channel of the water inlet 12 is within the irradiation range of the sterilization lamp 60. The sterilization lamp 60 of the embodiment is arranged on the side wall of the flow channel of the water inlet 12, directly sterilizing the water entering the water inlet 12, effectively reducing the number of bacteria entering the filter assembly 50.

[0050] Preferably, the water inlet 12 is in a long strip shape, and the sterilization lamp 60 is also in a long strip shape, and the length of the sterilization lamp 60 is substantially equal to the length of the water inlet 12, so as to sufficiently increase the irradiation range of the water inlet 12 and improve the sterilization effect. It can be understood that in other embodiments, the water inlet 12 can also be provided in other shapes, such as an arc shape or a circular shape. Correspondingly, the sterilization lamp 60 is also preferably arranged in an arc shape or a ring shape matching the water inlet, so as to as far as possible increase the irradiation of the flow channel in the water inlet 12 and ensure the sterilization effect.

[0051] As shown in FIG. 4, specifically, the sterilization lamp 60 comprises a light source module 62, a heat dissipation seat 64 and a lampshade 66. The heat dissipation seat 64 comprises a base 642 and a plurality of heat dissipation fins 644 arranged on the upper side surface of the base 642. The light source module 62 is fixed to the lower side of the base 642 of the heat dissipation seat 64. The light source module 62 comprises a light emitting element.

[0052] In an embodiment, the light source module 62 comprises a substrate 622 and a plurality of lamp beads 624 arranged on the substrate 622. The lamp beads 624 serve as the light emitting element and are used to emit UV light. As shown in FIG. 4, in the embodiment, the lamp beads 624 are arranged in a straight line along the substrate 622. It can be understood that the arrangement mode of the lamp beads 624 is not limited thereto. The substrate 622 is attached to the lower side surface of the base 642. The lamp beads 624 are arranged on the side of the substrate 622 away from the base 642. The surfaces of the substrate 622 and the base 642 connected to each other are preferably coated with a heat conducting paste 65, which is conducive to quickly conducting the heat on the substrate 622 to the base 642 of the heat dissipation seat 64, and then dissipating the heat through the heat dissipation fins 644. Preferably, the heat dissipation seat 64 is made of a metal material with good heat conductivity, such as aluminum, copper, etc.

[0053] The lampshade 66 is connected to the base 642 of the heat sink 64, and is used to cover the light source module 62 to protect the circuit of the light source module 62. Preferably, a sealing ring 68 is arranged between the lampshade 66 and the lower surface of the base 642 to seal the light source module 62 and prevent water from damaging the circuit of the light source module 62 when the light source module 62 is used underwater.

[0054] Preferably, the bottom surface of the base 642 is inwardly recessed to form a receiving cavity 646, and the light source module 62 is received in the receiving cavity 646. The lampshade 66 is sealingly connected to the base 642 to close the receiving cavity 646 of the base 642 and seal the receiving cavity 646 by means of the sealing ring 68.

[0055] In this embodiment, the lampshade 66 is tightly sleeved on the periphery of the base 624 of the heat sink 64, and preferably is tightly fitted. Specifically, the lampshade 66 includes an end wall 665 and a side wall 666 extending from the periphery of the end wall 665. To facilitate assembly, the periphery of the lampshade 66 is provided with a plurality of grooves 664, which facilitates the deformation of the edge of the lampshade 66 to slightly expand outwardly during assembly, so that the lampshade 66 can be easily sleeved on the periphery of the base 624.

[0056] In another embodiment, the light emitting element can be a lamp tube. As shown in FIG. 17, the lamp tube 626 can be used as the light emitting element instead of the lamp bead in the light source module 62 in FIG. 8.

[0057] Preferably, the lampshade 66 has a light-transmitting region 667 corresponding to the region of the light emitting element in the light source module 62. Specifically, the lampshade 66 has the light-transmitting region 667 corresponding to the region of the lamp bead 624 in the light source module 62; or the lampshade 66 has the light-transmitting region 667 corresponding to the region of the lamp tube 626 in the light source module 62. The material of the light-transmitting region 667 is transparent material, which can be quartz or plastic.

[0058] Preferably, the transparent material is glass. Using glass as the transparent material can avoid the problem of aging and reduction of light transmission rate of plastic, and ensure the light transmission of the transparent material.

[0059] Preferably, the transparent material is quartz glass. The quartz glass can make the lampshade maintain a high light transmission rate, and thus maintain a high sterilization effect.

[0060] In this embodiment, the light-transmitting region 667 is located in the middle of the end wall 665, and is inwardly recessed relative to the outer surface of the end wall 665. The light-transmitting region 667 of the lampshade 66 is provided with a layer of coating film 661 covering the transparent material of the lampshade.

[0061] The film 661 is a removable and replaceable film. Since the surface of the lampshade 66 of the UV lamp assembly 60 often undergoes curing reaction in the pool, the surface of the lampshade 66 will harden and attach a layer of impurities after a long working time, thereby reducing the transmittance of ultraviolet light and affecting the sterilization efficiency. The film 661 can isolate the impurities on the surface of the lampshade 66. During use, the film 661 can be replaced regularly, that is, the old film is torn off and a new film is attached, which is convenient for maintenance. In this way, the change of the light transmittance of the light transmittance area of the lampshade can be reduced, and the sterilization effect can be ensured.

[0062] Further, when the transparent material of the lampshade is glass (including ordinary glass and quartz glass), since the light emitting surface of the light transmittance area 667 of the lampshade 66 is provided with a layer of film 661, the film can bond the glass, so that the danger of glass fragments falling into the pool due to impact of the glass on the lampshade can be avoided, and the safety when using the pool cleaning robot can be improved.

[0063] In this embodiment, referring to FIG. 8, the sterilization lamp 60 is installed on the shell 10 by a buckle connection. The inner wall of the water inlet 12 of the shell 10 is provided with a clamping groove 163, and the end of the side wall 666 of the lampshade 66 of the sterilization lamp 60 is provided with a hook 668 which protrudes from the heat dissipation seat 64. The hook 668 is buckled in the clamping groove of the shell 10, so that the sterilization lamp 60 is fixedly installed in the flow channel area of the water inlet 12. Preferably, the inner wall of the shell 10 is also provided with a recess 162, and when the sterilization lamp 60 is buckled on the shell 10, the protruding heat dissipation fins 644 on the sterilization lamp 60 are accommodated in the recess 162 of the shell 10. Preferably, a light-reflecting material 161 is arranged on the other side wall of the water inlet 12 opposite to the sterilization lamp 60, which can enhance the sterilization effect on the one hand, and can avoid aging of the shell 10 due to long-term irradiation of the sterilization lamp 60 when the shell 10 is made of plastic. The light-reflecting material 161 can be a light-reflecting layer directly coated on the bottom wall, or a light-reflecting film, light-reflecting paper or light-reflecting sheet attached to the side wall, for example, a tin foil paper.

[0064] With reference to Figs. 1-8, in the present embodiment, the housing 10 is formed by the upper shell 14 and the lower shell 16, and the receiving cavity 11 is defined between the upper shell 14 and the lower shell 16. The water inlets 12 are arranged at the bottom of the lower shell 16, and the water outlets 13 are arranged at the upper shell 14. Each of the water inlets 12 and the water outlets 13 is arranged in two. In the present embodiment, the number of the water inlets 12 is two, and the number of the germicidal lamps 60 is also two. The two germicidal lamps 60 are arranged at the two water inlets 12, respectively. Specifically, in the present embodiment, the two germicidal lamps 60 are installed on the side wall of the same side of the two water inlets 12, i.e., the two germicidal lamps 60 are arranged in parallel, and the irradiation directions of the two germicidal lamps 60 are the same in the present embodiment. It can be understood that, as an alternative, the two germicidal lamps 60 can also be arranged on the side wall of the adjacent side of the two water inlets 12, and the irradiation directions of the two germicidal lamps 60 are opposite.

[0065] In other embodiments, the two germicidal lamps 60 can also be arranged at the periphery of the water inlets 12. That is, the two germicidal lamps 60 are arranged at intervals, and the two water inlets 12 are located between the two germicidal lamps 60. The two germicidal lamps 60 are adjacent to and face the bottom of the filter assembly 50, and irradiate the surface of the filter assembly 50 upward from the bottom of the filter assembly 50.

[0066] The pump assembly 40 is arranged in the flow channel of the receiving cavity 11. The pump assembly 40 includes a pump shell 42, a pump motor 44, and an impeller 46. Under the drive of the pump motor 44, the impeller 46 drives the water flow to flow from the water inlets 12, pass through the flow channel, and then flow out from the water outlets 13. The filter assembly 50 is arranged in the flow channel between the water inlets 12 and the water outlets 13. The filter assembly 50 can include filter paper, gauze, filter screen, or other filter elements, for filtering the water flow flowing from the water inlets 12 and discharging the filtered water to the water outlets 13, so as to discharge the filtered water from the water outlets 13.

[0067] In some embodiments, the motor of the driving assembly 30 can be integrated with the pump motor 44, or the driving assembly 30 is used to drive the pump at the same time, i.e., the driving assembly 30 has multiple output shafts, which are respectively used to connect and drive the impeller of the pump assembly and the wheel set.

[0068] The control device 70 is also arranged in the receiving cavity 11 of the housing 10. The control device 70 includes a sealed control box, and a power supply module and a control module arranged in the control box. In the present embodiment, the pool cleaning robot 100 is powered by a cable, and includes a power supply connecting cable 90, which connects the power supply on the shore with the power supply module of the control device 70. In other embodiments, the pool cleaning robot 100 can also use wireless power supply mode. In the wireless power supply embodiment, the power supply module includes a rechargeable battery.

[0069] The control device 70 is electrically connected to the pump assembly 40 and the power assembly 20 for powering the pump assembly 40 and the power assembly 20. In the embodiment, the control device 70 is electrically connected to the drive assembly 30 for powering the drive assembly 30 and controlling the movement of the travel assembly 21 through the drive assembly 30, thereby controlling the moving direction and speed of the pool cleaning robot 100. In some embodiments, the fluid jet can be achieved by means of the pump assembly 40 for assisting the movement or steering of the pool cleaning robot 100. The control device 70 is also electrically connected to the sterilization lamp 60 for powering or controlling the sterilization lamp 60.

[0070] Specifically, in the embodiment, the wheel set 22 of the travel assembly 21 includes a pair of driving wheels 222 and a pair of driven wheels 224. The travel assembly 21 further includes two tracks 24 connecting the driving wheels 222 and the driven wheels 224. Each track 24 connects one driving wheel 222 and a corresponding driven wheel 224. The driving wheels 222 are driven to rotate by the drive assembly 30, and the driven wheels 224 are driven to rotate synchronously by the tracks 24, thereby achieving the movement of the pool cleaning robot 100. Preferably, the embodiment further includes a side plate 26 for covering the travel assembly 21.

[0071] Preferably, the embodiment further includes at least one roller brush 80. The roller brush 80 is substantially cylindrical. A plurality of brush pieces 82 are arranged on the periphery of the roller brush 80. The roller brush 80 can be sleeved on the shaft between the two driving wheels 222 and / or the shaft of the two driven wheels 224. Thus, when the pool cleaning robot 100 moves, the roller brush 80 is driven to rotate, and the brush pieces 82 are used to clean the garbage and debris on the bottom of the pool synchronously.

[0072] Preferably, the roller brush 80 further includes sleeves 84 at both axial ends thereof. The sleeves 84 are preferably made of non-slip material (such as sponge) to increase the friction and adhesion between the roller brush 80 and the wall of the pool, thereby improving the stability of the rotation of the roller brush 80.

[0073] As an alternative, the power assembly 20 can also include a plurality of thrusters. The plurality of thrusters can include at least one first thruster for driving the pool cleaning robot 100 to move forward, at least one second thruster for driving the pool cleaning robot 100 to turn left, and at least one third thruster for driving the pool cleaning robot 100 to turn right. The plurality of thrusters can also be used to achieve the movement and steering of the pool cleaning robot 100 in the pool. Preferably, the power assembly 20 can further include at least one fourth thruster for driving the pool cleaning robot 100 to move backward.

[0074] Preferably, the top of the upper shell 14 has an opening 140, and a top cover 17 is arranged at the opening 140, and the top cover 17 can be opened to expose the opening 140. The filter assembly 50 is detachably arranged in the receiving cavity 11. During installation or maintenance, the filter assembly 50 can be put in or taken out through the opening 140. By arranging the opening 140, the filter assembly 50 can be easily disassembled, cleaned, or the filter screen replaced.

[0075] Referring to Fig. 5, in the embodiment, the filter assembly 50 is a filter basket type filter device, which has a top plate 52, a bottom plate 53, and a side wall 54 connecting the top plate 52 and the bottom plate 53. The top plate 52, the bottom plate 53, and the side wall 54 jointly define the filter cavity 51. The side wall 54 is a filter screen surrounding the periphery. The side wall 54 is generally enclosed into a cuboid shape with the upper and lower ends open, the top plate 52 is connected to the upper end of the side wall 54 and covers the upper opening, and the bottom plate 53 is connected to the lower end of the side wall 54 and covers the lower opening. The top plate 52, the bottom plate 53, and the side wall 54 are detachably connected, for example, snap-fit connected, or connected by screws. Specifically, in the embodiment, the periphery of the bottom of the side wall 54 is provided with a clamping block or a clamping hook 542, the periphery of the bottom plate 53 extends towards the side wall 54 to form a connecting portion 534, the connecting portion 534 is provided with a clamping hole corresponding to the clamping block or the clamping hook 542, and the clamping hole cooperates with the clamping block or the clamping hook 542 to realize the snap-fit connection of the side wall 54 and the bottom plate 53. The top plate 52 and the side wall 54 are also connected by the same or similar snap-fit connection structure, which will not be described here.

[0076] In the embodiment, the top plate 52 of the filter assembly 50 is fixedly connected with the top cover 17 of the shell 10, and preferably, a handle portion 18 is further connected to the top cover 17. In other embodiments, the top cover 17 is rotatably connected with the upper shell 14 and can be flipped open or closed relative to the upper shell 14 to open or cover the opening 140. In this case, the filter assembly 50 is detachably connected with the top cover 17 or not fixedly connected, so that the filter assembly 50 can be conveniently taken out or put in by opening the top cover 17. In some embodiments, the surfaces of the top plate 52 and the top cover 17 facing each other are provided with positioning structures cooperating with each other. Specifically, the surface of the top plate 52 facing the top cover 17 (i.e., the upper surface) is provided with a first positioning portion 522, and the surface of the top cover 17 facing the top plate 52 (i.e., the lower surface) is provided with a second positioning portion 172, and the first positioning portion 522 and the second positioning portion 172 cooperate with each other to positionally align the top plate 52 and the top cover 17 before installation. Preferably, the first positioning portion 522 of the top plate 52 is a first protruding column, and the second positioning portion 172 of the top cover 17 is a second protruding column with a positioning hole. When the top plate 52 and the top cover 17 are positionally aligned, the top end of the first protruding column is clamped into the positioning hole of the second protruding column.

[0077] The bottom end of the filter assembly 50 is detachably abutted to the inner wall of the lower shell 16. The bottom plate 53 of the filter assembly 50 is provided with an inlet 532 corresponding to the position of the water inlet 12 of the shell 10. Preferably, the shape and size of the inlet 532 are matched with the shape and size of the water inlet 12. The bottom plate 53 further comprises a bottom cover 536 rotatably opened and closed at the inlet 532. In the embodiment, the two water inlets 12 of the shell 10 comprise a main water inlet 12 and a secondary water inlet 12. The main water inlet 12 is opened when working, and the secondary water inlet 12 is closed. The bottom cover 536 corresponding to the secondary water inlet 12 is provided with a counterweight. When the pool cleaning robot 100 climbs the wall, the bottom cover 536 at the secondary water inlet 12 is opened under the action of gravity, thereby opening the secondary water inlet 12, i.e. when the pool cleaning robot 100 climbs the wall, the two water inlets 12 are opened at the same time, the water flow entering the flow passage is increased, and the water flow of the water outlet 13 is further increased, thereby increasing the counter thrust, so that the pool cleaning robot 100 can firmly adhere to the pool wall for cleaning under the action of the counter thrust.

[0078] Preferably, the filter assembly 50 further comprises a middle partition plate 55 located in the filter cavity 51. The middle partition plate 55 is located in the middle of the filter cavity 51, dividing the filter cavity 51 into two parts. The top end of the middle partition plate 55 is abutted to the top plate 52, and the bottom end of the middle partition plate 55 is abutted to the bottom plate 53. The arrangement of the middle partition plate 55 is beneficial to enhance the filtering effect.

[0079] The germicidal lamp 60 is electrically connected with the control device 70 for power supply and control by the control device 70. Therefore, the germicidal lamp 60 is preferably fixedly installed in the shell 10. The germicidal lamp 60 further comprises a power supply cable 67 electrically connected with the light source module 62. The power supply cable 67 is distributed along the inner wall of the shell 10 and is signal connected with the control mainboard in the control device 70 for power supply and control.

[0080] In use of the above-mentioned pool cleaning robot 100, the shell 10 walks in the pool through the walking assembly 21 and the driving assembly 30 inside the shell 10. Under the action of the pump assembly 40, the water in the pool enters the filter assembly 50 from the water inlet 12, is filtered through the filter screen and is discharged from the water outlet 13, achieving the purpose of cleaning the water body of the pool. In this process, the germicidal lamp 60 always irradiates the water body in the flow passage of the water inlet 12, sterilizing and disinfecting the water body before entering the shell 10 for filtration, avoiding the secondary pollution of the water by the bacteria carried by the water accumulated on the filter assembly 50, and also avoiding the generation of odor due to excessive bacteria in the filter assembly 50, thereby reducing the frequency of cleaning and replacement of the filter assembly 50 and greatly improving the customer experience.

[0081] In the embodiment, the pool cleaning robot 100 is cable-powered, which allows the use of high-power germicidal lamps for long-term operation, thereby ensuring that the high-speed flowing water body can be effectively sterilized during operation, ensuring the sterilization effect.

[0082] On the other hand, the pool cleaning robot is generally followed by an electric control box for power supply or a float for communication enhancement. The float floats on the water surface, and the germicidal lamp 60 can be arranged at the bottom of the float to sterilize and disinfect part of the water body.

[0083] Figs. 9-12 show a pool cleaning robot according to a second embodiment of the present application. In this embodiment, the difference from the first embodiment is the position of the germicidal lamp 60. In this embodiment, only one germicidal lamp 60 is included, and the germicidal lamp 60 is arranged on the inner wall of the top cover 17 of the shell 10. In addition, the structure of the germicidal lamp 60 of this embodiment is also slightly changed.

[0084] Similarly to the above embodiments, the germicidal lamp 60 of this embodiment also includes a light source module 62, a heat sink 64, and a lampshade 66. The heat sink 64 includes a base 642 and a plurality of heat dissipation fins 644 arranged on the upper surface of the base 642. The light source module 62 is fixed to the lower side of the base 642 of the heat sink 64. The light source module 62 includes a light emitting element. The light emitting element includes a lamp tube. Alternatively, the light source module 62 also includes a substrate 622, and the light emitting element is a plurality of lamp beads 624 arranged on the substrate 622. The lamp beads 624 are used to emit UV light. The substrate 622 is attached to the lower surface of the base 642. The lamp beads 624 are arranged on the side of the substrate 622 away from the base 642. A heat-conducting paste 65 is coated between the surfaces of the substrate 622 and the base 642, which facilitates the rapid conduction of heat on the substrate 622 to the base 642 of the heat sink 64, and then the heat is dissipated through the heat dissipation fins 644. The lampshade 66 is connected to the base 642 of the heat sink 64, and is used to cover the light source module 62 therein to protect the circuit of the light source module 62. Preferably, a sealing ring 68 is arranged between the lampshade 66 and the lower surface of the base 642, so as to seal the light source module 62 and avoid water seepage causing damage to the circuit of the light source module 62 during underwater operation.

[0085] Preferably, the bottom surface of the base 642 is inwardly recessed to form a receiving cavity 646, and the light source module 62 is received in the receiving cavity 646. The periphery of the lampshade 66 is connected to the periphery of the bottom surface of the base 642, thereby closing the receiving cavity 646 of the base 642 and sealing the receiving cavity 646 by means of the sealing ring 68.

[0086] As same as the above embodiment, the lampshade 66 of the present embodiment corresponds to the light-emitting element region in the light source module 62 as a light-transmitting region 667. Specifically, the region of the lampshade 66 corresponding to the lamp beads 624 in the light source module 62 is the light-transmitting region 667; or, the region of the lampshade 66 corresponding to the lamp tube 626 in the light source module 62 is the light-transmitting region 667, and the material of the light-transmitting region 667 is transparent material, which can be quartz or plastic.

[0087] Preferably, the transparent material is glass. Using glass as the transparent material can avoid the problem of aging and light transmittance decline of plastic, and ensure the light transmittance of the transparent material.

[0088] Preferably, the transparent material is quartz glass. Quartz glass can make the lampshade maintain a high light transmittance, and thus maintain a high sterilization effect.

[0089] The light-transmitting region 667 of the lampshade 66 is provided with a layer of coating film 661 covering the transparent material of the lampshade.

[0090] The sterilization lamp 60 of the present embodiment is different from the sterilization lamp 60 of the above first embodiment in that, in the present embodiment, the sterilization lamp 60 is installed in the installation space 19 between the top plate 52 and the top cover 17.

[0091] Preferably, a sealing ring can be arranged at the periphery of the top plate 52 of the filter assembly 50 in contact with the top cover 17 to form airtight connection, thereby sealing the installation space 19.

[0092] In some embodiments, the sterilization lamp 60 is embedded in the top plate 52 of the filter assembly 50. Specifically, a through hole 520 is formed in the middle of the top plate 52 corresponding to the lampshade 66 of the sterilization lamp 60, and the lampshade 66 of the sterilization lamp 60 is clamped in the through hole 520, so that the light of the light source module 62 passes through the lampshade 66 and then directly irradiates the filter cavity 51 and the filter screen outside the filter cavity 51. Preferably, a limiting structure is arranged between the periphery of the lampshade 66 and the wall part of the top plate 52 limiting the through hole 520. Specifically, the limiting structure includes a limiting protrusion 663 arranged on the periphery of the lampshade 66 and a limiting groove 521 formed on the wall part of the top plate 52, and the precise positioning of the lampshade 66 and the top plate 52 is realized by the cooperation of the limiting protrusion 663 and the limiting groove 521.

[0093] As an example, the base 642 and the lampshade 66 are connected by fasteners. Specifically, the periphery of the base 642 is provided with a plurality of fixing holes 645, and the periphery of the lampshade 66 is provided with a plurality of connecting holes 662 corresponding to the fixing holes 645, the connecting holes 662 are threaded holes, and during installation, the fixing holes 645 of the base 642 and the connecting holes 662 of the lampshade 66 are aligned, and fasteners (such as bolts, screws) can be screwed through the fixing holes 645 and the connecting holes 662, thereby realizing the assembly of the sterilization lamp 60.

[0094] In the embodiment, the top cover 17 is fixedly connected with the top plate 52 of the filter assembly 50. In other embodiments, the top cover 17 can not be connected with the top plate 52 of the filter assembly 50, and one side of the top cover 17 is rotatably connected with the upper shell 14, so that the opening 140 can be opened or closed by turning over. In this case, the sterilization lamp 60 is preferably fixed relative to the top cover 17, that is, the sterilization lamp 60 is fixedly connected to the inner side of the top cover 17 for wiring.

[0095] In the pool cleaning robot of the embodiment, the filter screen is not usually arranged completely vertically, and the dirt is accumulated at the bottom of the filter assembly 50 on the other hand. The light source module 62 can directly irradiate the filter screen and the dirt surface, and the purpose of sterilization and disinfection can be fully achieved.

[0096] In use, the shell 10 is walked in the pool by the walking assembly 21 and the driving assembly 30 inside the shell 10. Under the action of the pump assembly 40, the water in the pool enters the filter assembly 50 from the water inlet 12, is filtered by the filter screen, and is discharged from the water outlet 13, so as to achieve the purpose of cleaning the water body of the pool. In this process, the sterilization lamp 60 always irradiates the filter screen and the dirt surface, sterilizes and disinfects the filter assembly and the water filtered by the filter assembly, avoids secondary pollution of the water body, and also avoids odor caused by excessive bacteria in the filter assembly 50, so as to reduce the cleaning and replacement frequency of the filter assembly 50 and greatly improve the customer experience.

[0097] The other components of the embodiment are the same as those of the first embodiment, and specific reference can be made to the specific description of the first embodiment above.

[0098] In other embodiments, the sterilization lamp 60 can also be arranged on the inner surface of the side wall of the shell 10. The sterilization lamp 60 is adjacent to and opposite to the side wall 54 of the filter assembly 50. The sterilization lamp 60 directly irradiates the side wall of the filter assembly 50.

[0099] In the above embodiments, the filter assembly 50 is a filter basket type filter device. As an alternative, a filter element in the form of a filter cartridge can also be used, which is a cylindrical filter cartridge. The sterilization lamp 60 can be a circular sterilization lamp tube. The circular sterilization lamp tube surrounds the periphery of the water inlet 12. Directly irradiate the bottom of the filter assembly 50; or the sterilization lamp 60 can also be arranged at the top of the filter assembly 50, which can be arranged on the inner wall of the top cover and opposite to the top of the filter assembly 50. The sterilization lamp 60 directly irradiates the top of the filter assembly.

[0100] In the first embodiment, the film 661 is a removable and replaceable film. In other embodiments, referring to the underwater germicidal lamp shown in FIGS. 13-15, the film 661 is irremovably disposed on the light exit surface of the light transmissive region of the lamp cover. The permanently disposed film 661 can reduce the problem of the lamp cover surface hardening and adhering impurities due to long-term operation of the prior art underwater germicidal lamp, and avoid the problem of the light transmittance of the lamp cover being reduced due to chemical reaction between the lamp cover and impurities. In this way, the light transmittance of the light transmissive region of the lamp cover can be maintained, thereby ensuring the sterilization effect. Moreover, since chemical reaction between the lamp cover and impurities is avoided, the service life of the germicidal lamp can be effectively improved.

[0101] Preferably, the film 661 is a material with high transparency and low adsorption properties. By using a material with high transparency, the lamp cover can maintain a high light transmittance, and due to the low adsorption property, the surface of the film 661, i.e. the surface of the lamp cover, is not easy to adsorb impurities. Even if it is not replaced, i.e. used for a long time, the lamp cover 66 surface can avoid adhering impurities, which is convenient to use and ensures the sterilization effect.

[0102] Preferably, the film 661 contains ETFE (ethylene-tetrafluoroethylene copolymer) material or FEP (fluoroethylene propylene copolymer) material. Preferably, the film 661 is a FEP film or an ETFE film.

[0103] The ETFE material is a durable, lightweight fluoroplastic material with excellent chemical resistance, weather resistance, and high light transmittance. Its main characteristics include: strong resistance to ultraviolet light and weather resistance, which can maintain stable performance under long-term sunlight and harsh environments; high light transmittance, making it very suitable for use in greenhouses, skylights, and other places where light transmission is required; self-cleaning ability, smooth surface, not easy to stain; chemical corrosion resistance, suitable for use in chemical environments; lightweight and high strength, lighter than traditional glass but with higher impact strength; high temperature resistance, can maintain physical properties within a wide temperature range.

[0104] The FEP film is a thin film made of fluoroplastic, with excellent chemical resistance and electrical insulation performance. The FEP film has similar characteristics to PTFE (polytetrafluoroethylene), but has better processability and transparency. Its main characteristics include: excellent chemical resistance, FEP has strong corrosion resistance to most chemicals. High temperature stability, FEP film can maintain performance unchanged within a wide temperature range of -200°C to +200°C. High transparency, FEP film is more transparent than other fluoroplastics. Excellent electrical insulation, FEP film has very low dielectric constant and excellent electrical insulation performance. Low friction coefficient, the surface is very smooth and has self-lubricating properties, not easy to stick impurities. UV resistance: FEP film has strong resistance to ultraviolet light when exposed outdoors.

[0105] Therefore, the use of ETFE material or FEP material film can maintain high light transmittance, and due to the difficulty of surface accumulation of attachments, even if it is not replaced, long-term use can avoid or slow down the attachment of impurities on the surface of the lampshade 66, convenient to use and ensure the sterilization effect.

[0106] Preferably, referring to FIG. 16, the film 661 is an ETFE tape. The ETFE tape can include an ETFE base film, a pressure-sensitive adhesive, and a release film stacked in sequence. Among them, the release film is a kind of film used to prevent the adhesion of sticky materials (such as pressure-sensitive adhesive, tape, adhesive, etc.) when not in use. Its surface is specially treated and has excellent anti-sticking performance, which can easily separate from the sticky material without affecting the performance of the material or leaving residual glue. The release film can be made of plastic substrate (such as PET, PE, PP, etc.) and preferably coated with a layer of silicone oil or fluorinated release agent. The pressure-sensitive adhesive (Pressure-Sensitive Adhesive, PSA) is an adhesive that can adhere under slight pressure. The pressure-sensitive adhesive can exhibit adhesion without the need for heat, solvents or water, and can be firmly attached to a variety of surfaces. The pressure-sensitive adhesive has unique properties, can provide long-lasting adhesion, and can be removed or reattached as needed. The composition of the pressure-sensitive adhesive can include elastomers and resins, which give it good adhesion, flexibility and durability.

[0107] Specifically, the performance of the ETFE tape is shown in Table 1 below:

[0108] Table 1

[0109] Because the ETFE tape has excellent bonding properties, it can be directly bonded with ETFE, FEP and PFA and other non-stick substrates, has excellent impact resistance and tear resistance, excellent chemical resistance, heat resistance and weather resistance, and excellent visible light transmittance, and excellent flame retardant performance.

[0110] Specifically, referring to FIGS. 13-15, in some embodiments, the sterilization lamp 60 can be installed at the lower shell 620 of the pool cleaning robot. In this embodiment, the bottom wall of the lower shell 620 is provided with a through mounting hole, and the sterilization lamp 60' is installed in the mounting hole, and the light emitting surface of the sterilization lamp 60' irradiates the pool wall surface of the pool from the bottom surface of the lower shell 620 downward.

[0111] Specifically, the sterilization lamp 60' of the present embodiment includes a light source module 615, a base 612 and a lampshade. The light source module 615 is fixed to one side surface of the base 612, and the lampshade is arranged around the light source module 615 and is in sealed connection with the base 612.

[0112] The light source module 615 of the present embodiment can adopt the structure of the light source module of the first or second embodiment, which will not be described herein.

[0113] The base 612 of the present embodiment differs from the above-mentioned embodiments in that no heat dissipation fins are provided.

[0114] In addition, the lampshade of the present embodiment comprises a transparent cover plate 617, a connecting frame 619, and a coating film 661 covering the surface of the transparent cover plate 617. The transparent cover plate 617 is made of a transparent material, preferably glass, and more preferably quartz glass. The connecting frame 619 has a hollow structure with an opening in the middle, and the length and width of the opening are smaller than those of the transparent cover plate 617, respectively. Preferably, the material of the connecting frame 619 is different from that of the transparent cover plate 617.

[0115] Similarly to the above-mentioned embodiments, the bottom surface of the base 612 is inwardly recessed to form a receiving cavity. The light source module 615 is accommodated in the receiving cavity.

[0116] Unlike the above-mentioned embodiments, in the present embodiment, the transparent cover plate 617 is arranged at the opening of the receiving cavity, and the periphery of the connecting frame 619 is fixedly connected with the periphery of the base 612, preferably by means of screws or other fasteners or buckling connection (the connection method can adopt the structure of the other embodiments described above, which will not be described herein), so as to clamp the periphery of the transparent cover plate 617 between the base 612 and the connecting frame 619. The middle region of the transparent cover plate 617 is opposite to the opening of the connecting frame 619 to form a light-transmitting region. The light emitted by the light source module 615 is allowed to pass through the transparent cover plate 617 to irradiate the working environment, thereby achieving the sterilization effect. The light-transmitting region of the transparent cover plate 617 is exposed to the water in the swimming pool from the opening.

[0117] The coating film 661 is attached to the light-emitting surface of the transparent cover plate 617. The coating film 661 can be combined with the transparent cover plate 617 by coating process or pasting method. The coating film 661 is preferably a FEP film or an ETFE film. The advantages and properties of the FEP film and the ETFE film have been described in detail in the foregoing, which will not be described herein.

[0118] Various electronic components are integrated on the circuit board of the light source module 615 for controlling the working state of the sterilization lamp. The light source module 615 can be connected with the power supply through an electrical connector or a pin, a socket, and a conductive circuit, so as to supply power to the sterilization lamp. Specifically, in the present embodiment, the light source module 615 is connected with the power supply through the conductive terminal 614 and the conductive connector 611. The conductive connector 611 is fixed on the base 612. The conductive terminal 614 electrically connects the circuit board of the light source module 615 with the conductive connector 611, thereby conducting the power supply circuit.

[0119] In this embodiment, the light source module 615 and the base 612 are further provided with a gasket 613. Specifically, the conductive terminal 614 and the gasket 613 are arranged between the opposite surfaces of the light source module 615 and the base 612, and preferably, the conductive terminal 614 is located at one end of the base 612 in the length direction, and the gasket 613 is located at the other end of the base 612 in the length direction.

[0120] Preferably, a sealing ring 616 is arranged between the lampshade and the lower surface of the base 612 to seal the light source module 615 and prevent water from damaging the circuit of the light source module 615 when working underwater. The sealing ring 616 is preferably in contact with the periphery of the transparent cover plate 617 and can be fixed by a clamping groove or glued. The sealing ring 616 can prevent dust, water and other impurities from entering the inside of the lamp body during the operation of the germicidal lamp, thereby protecting the internal electronic components (such as the printed circuit board assembly of the light source module 615) and the lamp beads from damage.

[0121] In an embodiment, the transparent cover plate 617 is glass, and the film 661 is an FEP film or an ETFE film. This combination, especially quartz glass plus FEP film or ETFE film, can achieve high light transmittance and impact resistance.

[0122] Specifically, the following are the experimental data obtained by light transmittance test and drop test of the film 661' composed of the above-mentioned ETFE tape.

[0123] (1) Light transmittance test

[0124] Before the experiment, the appearance of the pool cleaning robot sample was checked, and the light transmittance data was measured. The ordinary single glass light transmittance was between 28%-30%. The following Table 2 shows the light transmittance test results of the combination of the film 661 composed of ETFE tape and quartz glass:

[0125] Table 2

[0126] From the above data, it can be seen that the combination of the film 661 composed of ETFE tape and quartz glass can maintain a high light transmittance.

[0127] (2) Drop test

[0128] Before the experiment, the appearance of the pool cleaning robot sample (the lampshade of the germicidal lamp is quartz glass) was checked to be normal (as shown in Table 3 before the experiment), and the bare machine was dropped. The test height was 30CM, and the drop direction was according to the actual use state.

[0129] After the test, the appearance of the pool cleaning robot sample was checked to be normal.

[0130] From the above test, it can be seen that the germicidal lamp assembly of the pool cleaning robot has good impact resistance when the lampshade of quartz glass is used, and is not easy to break, thereby improving the safety of the pool cleaning robot during use.

[0131] According to the above embodiment, the application further provides an underwater germicidal lamp, comprising a base, a light source module fixed to the base, and a lampshade covering the light source module, wherein the light source module comprises a light emitting element, the lampshade is a light transmission region corresponding to the light emitting element region of the light source module, and the light transmission region is provided with a coating film on the light emitting surface, which can be permanently arranged on the light emitting surface of the light transmission region or can be torn off and replaced. The structure of the underwater germicidal lamp can be the same as that of the above embodiment, and will not be described here again.

[0132] Although the application has been described herein with reference to the various illustrative embodiments, it is understood that various other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, many variations and modifications of the subject combination arrangement, as well as the components thereof, can be made within the scope and spirit of the application as disclosed in the specification, drawings, and claims. In addition to variations and modifications of the components and arrangements, other uses will also be apparent to those skilled in the art from the disclosure.

Claims

1. An underwater germicidal lamp comprising: The base, the light source module fixed to the base, and the lampshade covering the light source module, the light source module comprising light emitting elements, the lampshade corresponding to the light emitting element area of the light source module being a light transmission area, characterized in that: the light transmission area is provided with a film on the light emitting surface.

2. The underwater germicidal lamp of claim 1, wherein, The film contains ETFE material or FEP material.

3. The underwater germicidal lamp of claim 1, wherein, The film is a tearable film, or the film is permanently arranged on the light emitting surface of the light transmission area.

4. The underwater germicidal lamp of claim 1, wherein, The light transmission area is glass.

5. The underwater germicidal lamp of claim 4, wherein, The glass is quartz glass.

6. The underwater germicidal lamp of claim 1, wherein, The light source module further comprises a substrate, and the light emitting elements are a plurality of lamp beads arranged on the substrate.

7. The underwater germicidal lamp of claim 1, wherein, The light emitting elements are lamp tubes.

8. The underwater germicidal lamp of claim 1, wherein: The light transmission area of the lampshade is concave relative to the outer surface of the lampshade.

9. The underwater germicidal lamp of claim 1, wherein: The base has opposite first and second sides, the light source module is arranged on the first side of the base, and the second side of the base is provided with a plurality of heat dissipation fins.

10. The underwater germicidal lamp of claim 1, wherein: The side of the base where the light source module is arranged forms a receiving cavity, the light source module is received in the receiving cavity, and the lampshade is sealingly connected with the base to seal the receiving cavity.

11. The underwater germicidal lamp of claim 1, wherein: The lampshade is tightly sleeved on the periphery of the base, or the lampshade is connected with the base through fasteners.

12. A swimming pool cleaning robot characterized by: Comprising: A housing, the housing defining a receiving cavity therein, the housing being provided with a water inlet and a water outlet in fluid communication; A power assembly connected with the housing, for providing power to drive the pool cleaning robot to travel in the pool; A filter assembly arranged in the receiving cavity, the filter assembly having a filter cavity in fluid communication with the water inlet and the water outlet; A pump assembly arranged in the receiving cavity, for driving water flow from the water inlet into the receiving cavity, filtered by the filter assembly, and discharged from the water outlet; And The underwater sterilization lamp according to any one of claims 1-11.

13. The swimming pool cleaning robot of claim 12, wherein: The sterilization lamp is arranged on the outer wall of the housing or in the housing.

14. The swimming pool cleaning robot of claim 13, wherein: The sterilization lamp is arranged in the receiving cavity of the housing and located above, below and / or beside the filter assembly.

15. The swimming pool cleaning robot of claim 13, wherein: The sterilization lamp is arranged on the flow channel side wall of the water inlet to irradiate the water inlet flow channel area.

16. The swimming pool cleaning robot of claim 15, wherein: The shape of the sterilization lamp is roughly adapted to the shape of the water inlet. The shape of the sterilization lamp is roughly adapted to the shape of the water inlet.

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