Cleaning head and cleaning device

Abstract

Provided are a cleaning head and a cleaning device. The cleaning head comprises: a housing (10), a cleaning member (20), and a developing module (30) provided on one side of the cleaning member (20); the developing module (30) comprises a light-emitting member (31) and a beam processing member (32), the beam processing member (32) is used for receiving light emitted from the light-emitting member (31) and guiding the light to a surface to be cleaned; a light and shadow area is in the shape of a sector; the sector comprises a first edge (33) and a second edge (34), the first edge (33) is adjacent to the cleaning member (20), and the second edge (34) extends in a direction moving away from the cleaning member (20); and an included angle between the second edge (34) and a front edge of the cleaning member (20) is C, wherein 140°≤C≤170°.

Description

Cleaning heads and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application No. 202422121142.5 filed on August 29, 2024, the entire contents of which are incorporated herein by reference.

[0003] This disclosure claims priority to Chinese patent application No. 202422121114.3 filed on August 29, 2024, the entire contents of which are incorporated herein by reference.

[0004] This disclosure claims priority to Chinese patent application No. 202420324696.2 filed on February 21, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0005] The present disclosure relates to the technical field of cleaning equipment, and in particular to a cleaning head and a cleaning equipment. Background Art

[0006] With the development of electronic technology, smart homes are becoming increasingly popular. Take vacuum cleaners, for example. From the earliest wired vacuum cleaners to today's cordless vacuum cleaners, their designs have become increasingly user-friendly, with increasingly rich features, greatly facilitating user experience. When using a vacuum cleaner in environments with poor visibility, a lighting device is required to illuminate the surface being cleaned, improving visibility of dirt, hair, and other objects, ensuring optimal cleaning results.

[0007] In the related art, although the vacuum cleaner is equipped with a lighting device, the lighting device is limited by the lighting angle and lighting intensity. The lighting device can only illuminate the dirt on a part of the surface to be cleaned directly in front of the cleaning head. In this way, some areas are missed, affecting the cleaning effect of the vacuum cleaner and resulting in poor practical experience for users.

[0008] Public content

[0009] The present disclosure aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present disclosure is to provide a cleaning head that allows a user to more clearly see dirt on the surface area to be cleaned in front of the cleaning head, thereby improving the cleaning effect.

[0010] To achieve the purpose of this disclosure, the present disclosure proposes a variety of cleaning heads and cleaning devices.

[0011] According to the first aspect of the present disclosure, the cleaning head includes: a shell; a cleaning member, which is rotatably arranged in the shell; a developing module, which is arranged on one side of the cleaning member, and the developing module includes: a light-emitting member and a light beam processing member, the light beam processing member is used to receive light emitted from the light-emitting member and guide the light to the surface to be cleaned, thereby irradiating dirt on the area of ​​the surface to be cleaned, the area is sector-shaped, and the sector includes a first edge and a second edge. Compared with the second edge, the first edge is adjacent to the cleaning member, and the second edge extends in a direction away from the cleaning member. The angle between the second edge and the front edge of the cleaning member is C, and C satisfies the relationship: greater than or equal to 131°.

[0012] In some examples of the present disclosure, C satisfies the relationship: 133°≤A≤180°.

[0013] In some examples of the present disclosure, C satisfies the relationship: 140°≤A≤180°.

[0014] In some examples of the present disclosure, C satisfies the relationship: 135°≤A≤170°.

[0015] In some examples of the present disclosure, C satisfies the relationship: 140°≤A≤170°.

[0016] In some examples of the present disclosure, C satisfies the relationship: greater than or equal to 135°.

[0017] In some examples of the present disclosure, C satisfies the relationship: 131°≤A≤139°.

[0018] In some examples of the present disclosure, the sector includes a first edge and a second edge, and a central axis is included between the two edges. The angle between the central axis and the front edge of the cleaning member is A, and A satisfies the relationship: 66°≤A≤90°.

[0019] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤85°.

[0020] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤80°.

[0021] In some examples of the present disclosure, the divergence angle of the light beam emitted by the developing module on the vertical plane is β, and β satisfies the relationship: 2°≤β≤20°.

[0022] In some examples of the present disclosure, β satisfies the relationship: 2°≤β≤9°.

[0023] In some examples of the present disclosure, the angle between the central axis of the light beam emitted by the developing module and the surface to be cleaned is γ, and γ satisfies the relationship: 2°≤γ≤10°.

[0024] In some examples of the present disclosure, a distance between the center of the light-emitting element and the surface to be cleaned in the vertical direction is H, and H satisfies the relationship: 2 mm ≤ H ≤ 9.8 mm.

[0025] In some examples of the present disclosure, the sector includes a first edge and a second edge. Compared with the second edge, the first edge is adjacent to the cleaning member, and the second edge extends away from the cleaning member. The angle between the second edge and the front edge of the cleaning member is C, and C satisfies the relationship: 135°≤A≤180°.

[0026] In some examples of the present disclosure, the first edge is substantially parallel to an extension direction of a front edge of the cleaning member.

[0027] In some examples of the present disclosure, the developing module is an LED module, and the LED module is a single LED lamp bead module.

[0028] In some examples of the present disclosure, the light beam processing component is covered on the light emitting component, and the outer peripheral surface of the light beam processing component includes a first optical surface, a second optical surface, a third optical surface and a fourth optical surface that are smoothly connected. At least part of the light from the light emitting component can be emitted through the first optical surface, the second optical surface, the third optical surface and the fourth optical surface to form a light and shadow area.

[0029] In some examples of the present disclosure, the developing module further includes a substrate disposed on the cleaning member, the light-emitting member is disposed on the substrate, and a rubber package is provided around the outer periphery of the light-emitting member, and the light beam processing member is disposed on the substrate through the rubber package.

[0030] In some examples of the present disclosure, the light beam processing component is exposed on one side of the outer peripheral surface of the cleaning component, and the central axis of the light emitting component is set at an angle to the forward direction of the cleaning component, so that the emitted light of the light emitting component is emitted toward the front side of the cleaning component after passing through the first optical surface, the second optical surface, the third optical surface and the fourth optical surface of the light beam processing component.

[0031] In some examples of the present disclosure, the light beam processing member is formed into a structure similar to a quadrangular pyramid, the first optical surface, the second optical surface, the third optical surface, and the fourth optical surface are all curved surfaces, and the light emitting member is capable of forming a substantially conical light beam in front of the light beam processing member;

[0032] In the horizontal direction parallel to the surface to be cleaned, the cone angle of the light beam ranges from 140° to 160°;

[0033] In a direction perpendicular to the surface to be cleaned, the cone angle of the light beam ranges from 15° to 25°.

[0034] In some examples of the present disclosure, the height between the center position of the light-emitting element and the bottom end surface of the cleaning element ranges from 5 to 10 mm.

[0035] In some examples of the present disclosure, the cleaning head further includes a drive unit;

[0036] The cleaning member has a first end connected to the driving unit in transmission, and a second end opposite to the first end, the second end being a detachable end of the cleaning member, and the developing module is adjacent to one of the first end and the second end.

[0037] In some examples of the present disclosure, the developing module is distributed close to the first end, and the second end is distributed substantially flush with a side edge of the cleaning member.

[0038] In some examples of the present disclosure, the light generated by the developing module is colored light or transparent light.

[0039] In some examples of the present disclosure, the developing module has two opposite sides, and the side away from the cleaning member is exposed to the housing without any obstruction, so that light can be irradiated toward the outside of the housing to obtain a wider range of illumination.

[0040] In some examples of the present disclosure, an angle B between the first edge and the front edge of the cleaning member is an acute angle greater than or equal to 20°.

[0041] In some examples of the present disclosure, B satisfies the relationship: 20°≤B≤60°.

[0042] In some examples of the present disclosure, B satisfies the relationship: 25°≤B≤45°.

[0043] The cleaning device according to the second aspect of the present disclosure includes the cleaning head described above.

[0044] In some examples of the present disclosure, the cleaning device is a handheld cleaning device.

[0045] In some examples of the present disclosure, the cleaning device is a floor scrubber capable of wet mopping.

[0046] In some examples of the present disclosure, the cleaning device further includes: a host, the host is connected to the shell, and a battery for power supply is provided in the host.

[0047] In some examples of the present disclosure, the cleaning device further includes: a main unit connected to the shell, a power unit and a controller are provided in the main unit, and the power unit and the light-emitting element are electrically connected to the controller.

[0048] The present invention discloses a cleaning head designed to allow users to see dust in more areas. The light-emitting part has a wide illumination area, so users can see the dirt more clearly when cleaning the surface to be cleaned, with better visual experience and user experience. Users can see more dirty areas in the shortest time, and the brain can quickly respond to cleaning actions, saving cleaning time and helping to improve the user's cleaning efficiency.

[0049] Other additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0051] FIG1 is an exploded view of a cleaning head according to an embodiment of the present disclosure;

[0052] FIG2 is a schematic structural diagram of a cleaning head according to an embodiment of the present disclosure;

[0053] FIG3 is a side view of a cleaning head according to an embodiment of the present disclosure to illustrate an illumination range of an optical system in a vertical plane;

[0054] FIG4 is a schematic diagram of a cleaning head according to an embodiment of the present disclosure to illustrate the irradiation range of a developing module in a horizontal plane;

[0055] FIG5 is a schematic diagram of a cleaning head according to another embodiment of the present disclosure to illustrate the irradiation range of the developing module in a horizontal plane;

[0056] FIG6 is a schematic structural diagram of a light beam processing component according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0057] Embodiments of the present disclosure are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0058] The cleaning head 100 according to an embodiment of the present disclosure will be described below with reference to FIG. 1 to FIG. 3 . The cleaning head 100 can irradiate dirt on a surface area to be cleaned located at the front of the cleaning head 100 .

[0059] The term "dirt" includes dust, hair, debris, trash and other undesirable matter that may be located on a surface to be cleaned, such as a floor surface, a carpet surface or an elevated surface such as a countertop, table, bench or shelf.

[0060] As shown in Figures 1 to 4, the cleaning head 100 according to the embodiment of the first aspect of the present disclosure includes a shell 10, a cleaning member 20 and a developing module 30. The cleaning member 20 can be rotatably arranged in the shell 10, and the developing module 30 is arranged on one side of the cleaning member 20. The developing module 30 includes: a light-emitting member 31 and a light beam processing member 32. The light beam processing member 32 is used to receive light emitted from the light-emitting member 31 and direct the light to the surface to be cleaned, thereby irradiating dirt on the area of ​​the surface to be cleaned. The area is in the shape of a sector, and the sector includes a first edge 33 and a second edge 34. Compared with the second edge 34, the first edge 33 is adjacent to the cleaning member 20, and the second edge 34 extends in a direction away from the cleaning member 20.

[0061] Specifically, the housing 10 can provide a space for accommodating and covering dirt and the cleaning member 20. The cleaning member 20 is rotatably connected to the housing 10 and can rotatably roll along its own central axis on the surface to be cleaned. The cleaning member 20 is generally in the shape of an elongated cylinder and has bristles extending radially outward from the outer edge of the cylinder. When the cleaning device starts working, negative pressure is formed on the cleaning device, and the suction of external air causes air to flow under the housing 10 and around the cleaning head 100. This helps the cleaning device lift and suck dirt, dust and other dirt from the surface to be cleaned, and then brings the dirt, dust and other dirt from the opening on the housing 10 through the cleaning head 100 to the dirt storage space.

[0062] The developing module 30 is provided on the cleaning head 100 and is used to visualize dust, i.e., to display dirt on the floor for easy removal by the floor brush assembly. The developing module 30 is positioned close to the bottom end surface of the cleaning head 100 and in front of the cleaning element 20. This creates a light and shadow area in front of the cleaning head 100, projecting impurities onto the floor, creating a distinct reflection. This makes impurities more clearly visible on the floor, effectively improving cleaning effectiveness and efficiency, and providing a positive user experience.

[0063] Regarding the light and shadow area, please refer to FIG. 4 . In this embodiment, there is only one developing module 30 , and a light and shadow area is formed in front of the floor brush body 100 .

[0064] Therefore, by designing the cleaning head 100 , the user can see dirt more clearly when cleaning the surface to be cleaned, and the user's visual experience is softer.

[0065] The included angle C between the second edge 34 and the front edge of the cleaning member 20 satisfies the relationship: greater than or equal to 131°.

[0066] In some examples of the present disclosure, C satisfies the relationship: 133°≤C≤180°.

[0067] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤180°.

[0068] In some examples of the present disclosure, C satisfies the relationship: 135°≤C≤170°.

[0069] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤170°.

[0070] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤160°.

[0071] In some examples of the present disclosure, C satisfies the relationship: greater than or equal to 135°.

[0072] In some examples of the present disclosure, C satisfies the relationship: 131°≤C≤139°.

[0073] In some examples of the present disclosure, the value of the first angle C can be 140°, 145°, 150°, 155°, etc., or can be a value between 131° and 180° with intervals of 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°. In this embodiment, the purpose of limiting the first angle C to the above range is to ensure that the range of the light and shadow area is large enough to facilitate the visualization of impurities in front of the floor brush body 100, thereby improving cleaning efficiency and improving cleaning effects.

[0074] In some examples of the present disclosure, a central axis is included between the first edge 33 and the second edge 34 of the sector, and an angle A is included between the central axis and the front edge of the cleaning member, where A satisfies the relationship: 66°≤A≤90°.

[0075] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤85°.

[0076] In some examples of the present disclosure, the first edge 33 is substantially parallel to an extending direction of a front edge of the cleaning member 20 .

[0077] In some examples of the present disclosure, the developing module 30 is an LED module, and the LED module is a single LED lamp bead module.

[0078] Preferably, the developing module 30 is an LED module. It is worth noting that the developing module 30 is a single LED lamp bead module. The above-mentioned "single LED lamp bead module" refers to an LED module with a single LED lamp bead.

[0079] As shown in FIG6 , in some examples of the present disclosure, the outer peripheral surface of the light beam processing component 32 includes an optical surface, and the optical surface is used to emit at least part of the light from the light emitting component 31 to form the above-mentioned light and shadow area.

[0080] In some examples of the present disclosure, the light and shadow area may be formed by the light emitting element 31 itself and / or light having sufficient light intensity, that is, the emission angle of the light emitting element is large and / or the light intensity is strong, and finally the light and shadow area is obtained.

[0081] In some examples of the present disclosure, the light and shadow area can also be formed by a light-emitting component with a certain emission angle and a certain light intensity, which is then projected through the optical surface of the beam processing component 32 to obtain the light and shadow area. With the help of the transformation of the optical surface, a larger range of light and shadow area can be obtained.

[0082] In some examples of the present disclosure, combined with the range requirements of the light and shadow area, the optical surface may include one or more. As shown in Figure 6, in some examples of the present disclosure, the outer peripheral surface of the light beam processing part 32 includes a first optical surface 331, a second optical surface 332, a third optical surface 333 and a fourth optical surface 334 that are smoothly connected. The light beam processing part 32 is exposed on the outer peripheral surface of the floor brush body 100, and at least part of the light from the light emitting part 31 can be emitted through the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 to form the above-mentioned light and shadow area for focusing. In this embodiment, the central axis of the light emitting part 31 is set at an angle to the forward direction of the floor brush body 100, so that the emitted light of the light source is emitted toward the front side of the cleaning part 20 after passing through the first optical surface 331 to form the above-mentioned light and shadow area. The first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 change the propagation path of the light emitted from the light emitting component 31, including the following aspects: the first optical surface 331 and the third optical surface 333 control the horizontal angle and the clear cutoff lines on both sides, and the second optical surface 332 and the fourth optical surface 334 control the upper and lower light output to ensure that the light is emitted to the ground as much as possible and the light does not go upward.

[0083] In one embodiment, the above-mentioned "sector" does not include an astigmatism area. By arranging the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 in a smoothly connected form, the emission direction of the astigmatism can be changed so that the light is emitted toward the front of the floor brush body 100, thereby preventing the application from forming an astigmatism area on the ground and causing the user to feel light leakage. The above-mentioned "astigmatism" refers to light that does not originally fall into the light and shadow area.

[0084] In one embodiment, the first optical surface 331, the second optical surface 332, the third optical surface 333, and the fourth optical surface 334 are curved surfaces, and the light-emitting element 31 is capable of forming a generally conical light beam in front of the light beam processing element 32. In a horizontal direction parallel to the ground, the cone angle of the light beam ranges from 140° to 160°; in a vertical direction perpendicular to the ground, the cone angle of the light beam ranges from 15° to 25°. It should be noted that, in this specification, "generally" can be understood as close to, approximately, or within a predetermined range of a target value.

[0085] In other embodiments, the outer peripheral surface of the beam processing element 32 may include two optical surfaces, such as only a first optical surface 331 and a third optical surface 333. The two optical surfaces are arranged opposite each other and extend obliquely in a direction perpendicular to the direction of travel. This effectively transmits light from the light-emitting element 31 and diffuses it outward, ultimately creating a wide range of light and shadow areas. The first optical surface 331 and the third optical surface 333 may be flat or curved.

[0086] To help users clearly see the impurities reflected on the ground, the light generated by the developing module 30 is either colored or transparent. The light generated by the developing module 30 is preferably green, as green light has a longer wavelength and can be displayed at a greater distance. Green also symbolizes freshness, ideals, and hope, and can also alleviate eye fatigue to a certain extent. The light generated by the developing module 30 can include, but is not limited to, green. Other colors, such as white, red, and yellow, are also possible, and we will not elaborate on them here.

[0087] In this embodiment, the floor brush assembly further includes a drive unit (not shown). Referring to FIG. 2 and FIG. 1 , the cleaning member 20 includes a first end 11 that is transmission-connected to the drive unit and a second end 12 that is opposite to the first end 11. The second end 12 is a detachable end of the cleaning member 20. The developing module 30 is located adjacent to one of the first end 11 and the second end 12.

[0088] Furthermore, the developing module 30 is distributed near the first end 11. There are two situations for the setting of the second end: in the first situation (not shown in the figure), the second end 12 is distributed roughly flush with the side edge of the floor brush body 100, that is, the second end 12 is exposed to the outer shell of the floor brush body 100, thereby achieving edge cleaning; in the second situation, a connecting member 50 is provided on the second end 12, and the cleaning member 20 is detachably connected to the outer shell of the floor brush body 100 through the connecting member 50. The connecting member 50 is rotatably connected to the second end 12, that is, the connecting member 50 and the cleaning member 20 can rotate relative to each other. During installation, the first end 11 of the cleaning member 20 abuts against the power transmission member of the drive unit, and the power transmission member is located in the suction chamber 13; the second end 12 of the cleaning member 20 is connected to the outer shell of the floor brush body 100 through the connecting member 50.

[0089] In some examples of the present disclosure, the developing module 30 also includes a substrate arranged on the cleaning member 20, the light-emitting member 31 is arranged on the substrate, and a rubber package is provided around the outer periphery of the light-emitting member, and the light beam processing member is arranged on the substrate through the rubber package.

[0090] In another example of the present disclosure, the light beam processing member is formed into a structure similar to a quadrangular pyramid, the first optical surface, the second optical surface, the third optical surface, and the fourth optical surface are all curved surfaces, and the light emitting member is capable of forming a substantially conical light beam in front of the light beam processing member;

[0091] In the horizontal direction parallel to the surface to be cleaned, the cone angle of the light beam ranges from 140° to 160°;

[0092] In a direction perpendicular to the surface to be cleaned, the cone angle of the light beam ranges from 15° to 25°.

[0093] In some examples of the present disclosure, the height between the center position of the light-emitting element and the bottom end surface of the cleaning element ranges from 5 to 10 mm.

[0094] In some examples of the present disclosure, the cleaning head further includes a drive unit;

[0095] The cleaning member has a first end connected to the driving unit in transmission, and a second end opposite to the first end, the second end being a detachable end of the cleaning member, and the developing module is adjacent to one of the first end and the second end.

[0096] In some examples of the present disclosure, the developing module is distributed close to the first end, and the second end is distributed substantially flush with a side edge of the cleaning member.

[0097] In some examples of the present disclosure, the light generated by the developing module is colored light or transparent light.

[0098] In some examples of the present disclosure, the developing module has two opposite sides, and the side away from the cleaning member is exposed to the housing without any obstruction, so that light can be irradiated toward the outside of the housing to obtain a wider range of illumination.

[0099] According to the second aspect of the present disclosure, the cleaning head includes: a shell; a cleaning member, which is rotatably arranged in the shell; a developing module, which is arranged on one side of the cleaning member, and the developing module includes: a light-emitting member and a light beam processing member, the light beam processing member is used to receive light emitted from the light-emitting member and guide the light to the surface to be cleaned, thereby irradiating dirt on the area of ​​the surface to be cleaned, the area is in the shape of a sector, the sector includes a central axis, and the angle between the central axis and the front edge of the cleaning member is A, and A satisfies the relationship: 66°≤A≤90°.

[0100] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤85°.

[0101] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤80°.

[0102] In some examples of the present disclosure, the sector includes a first edge and a second edge. Compared with the second edge, the first edge is adjacent to the cleaning member, and the second edge extends away from the cleaning member. The angle between the second edge and the front edge of the cleaning member is C, and C satisfies the relationship: greater than or equal to 131°.

[0103] In some examples of the present disclosure, C satisfies the relationship: 133°≤C≤180°.

[0104] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤180°.

[0105] In some examples of the present disclosure, C satisfies the relationship: 135°≤C≤170°.

[0106] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤170°.

[0107] In some examples of the present disclosure, C satisfies the relationship: greater than or equal to 135°.

[0108] In some examples of the present disclosure, C satisfies the relationship: 131°≤C≤139°.

[0109] In some examples of the present disclosure, the first edge is substantially parallel to an extension direction of a front edge of the cleaning member.

[0110] In some examples of the present disclosure, the developing module is an LED module, and the LED module is a single LED lamp bead module.

[0111] As shown in FIG6 , in some examples of the present disclosure, the outer peripheral surface of the light beam processing component 32 includes an optical surface, and the optical surface is used to emit at least part of the light from the light emitting component 31 to form the above-mentioned light and shadow area.

[0112] In some examples of the present disclosure, the light and shadow area may be formed by the light emitting element 31 itself and / or light having sufficient light intensity, that is, the emission angle of the light emitting element is large and / or the light intensity is strong, and finally the light and shadow area is obtained.

[0113] In some examples of the present disclosure, the light and shadow area can also be formed by a light-emitting component with a certain emission angle and a certain light intensity, which is then projected through the optical surface of the beam processing component 32 to obtain the light and shadow area. With the help of the transformation of the optical surface, a larger range of light and shadow area can be obtained.

[0114] In some examples of the present disclosure, combined with the range requirements of the light and shadow area, the optical surface may include one or more. As shown in Figure 6, in some examples of the present disclosure, the outer peripheral surface of the light beam processing part 32 includes a first optical surface 331, a second optical surface 332, a third optical surface 333 and a fourth optical surface 334 that are smoothly connected. The light beam processing part 32 is exposed on the outer peripheral surface of the floor brush body 100, and at least part of the light from the light emitting part 31 can be emitted through the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 to form the above-mentioned light and shadow area for focusing. In this embodiment, the central axis of the light emitting part 31 is set at an angle to the forward direction of the floor brush body 100, so that the emitted light of the light source is emitted toward the front side of the cleaning part 20 after passing through the first optical surface 331 to form the above-mentioned light and shadow area. The first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 change the propagation path of the light emitted from the light emitting component 31, including the following aspects: the first optical surface 331 and the third optical surface 333 control the horizontal angle and the clear cutoff lines on both sides, and the second optical surface 332 and the fourth optical surface 334 control the upper and lower light output to ensure that the light is emitted to the ground as much as possible and the light does not go upward.

[0115] In one embodiment, the above-mentioned "sector" does not include an astigmatism area. By arranging the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 in a smoothly connected form, the emission direction of the astigmatism can be changed so that the light is emitted toward the front of the floor brush body 100, thereby preventing the application from forming an astigmatism area on the ground and causing the user to feel light leakage. The above-mentioned "astigmatism" refers to light that does not originally fall into the light and shadow area.

[0116] In one embodiment, the first optical surface 331, the second optical surface 332, the third optical surface 333, and the fourth optical surface 334 are curved surfaces, and the light-emitting element 31 is capable of forming a generally conical light beam in front of the light beam processing element 32. In a horizontal direction parallel to the ground, the cone angle of the light beam ranges from 140° to 160°; in a vertical direction perpendicular to the ground, the cone angle of the light beam ranges from 15° to 25°. It should be noted that, in this specification, "generally" can be understood as close to, approximately, or within a predetermined range of a target value.

[0117] In other embodiments, the outer peripheral surface of the beam processing element 32 may include two optical surfaces, such as only a first optical surface 331 and a third optical surface 333. The two optical surfaces are arranged opposite each other and extend obliquely in a direction perpendicular to the direction of travel. This effectively transmits light from the light-emitting element 31 and diffuses it outward, ultimately creating a wide range of light and shadow areas. The first optical surface 331 and the third optical surface 333 may be flat or curved.

[0118] In some examples of the present disclosure, the light beam processing component is exposed on one side of the outer peripheral surface of the cleaning component, and the central axis of the light emitting component is set at an angle to the forward direction of the cleaning component, so that the emitted light of the light emitting component is emitted toward the front side of the cleaning component after passing through the first optical surface, the second optical surface, the third optical surface and the fourth optical surface of the light beam processing component.

[0119] In some examples disclosed herein, in this embodiment, the first optical surface 331, the second optical surface 332, the third optical surface 333, and the fourth optical surface 334 are curved surfaces, enabling the light-emitting element 31 to form a generally conical light beam in front of the light beam processing element 32. In a horizontal direction parallel to the ground, the cone angle of the light beam ranges from 140° to 160°; in a vertical direction perpendicular to the ground, the cone angle of the light beam ranges from 15° to 25°. It should be noted that, in this specification, "generally" can be understood as close to, approximately, or within a predetermined range of a target value.

[0120] To help users clearly see the impurities reflected on the ground, the light generated by the developing module 30 is either colored or transparent. The light generated by the developing module 30 is preferably green, as green light has a longer wavelength and can be displayed at a greater distance. Green also symbolizes freshness, ideals, and hope, and can also alleviate eye fatigue to a certain extent. The light generated by the developing module 30 can include, but is not limited to, green. Other colors, such as white, red, and yellow, are also possible, and we will not elaborate on them here.

[0121] In the horizontal direction parallel to the surface to be cleaned, the cone angle of the light beam ranges from 140° to 160°;

[0122] In a direction perpendicular to the surface to be cleaned, the cone angle of the light beam ranges from 15° to 25°.

[0123] In some examples of the present disclosure, the height between the center position of the light-emitting element and the bottom end surface of the cleaning element ranges from 5 to 10 mm.

[0124] In some examples of the present disclosure, the cleaning head further includes a drive unit;

[0125] The cleaning member has a first end connected to the driving unit in transmission, and a second end opposite to the first end, the second end being a detachable end of the cleaning member, and the developing module is adjacent to one of the first end and the second end.

[0126] In some examples of the present disclosure, the developing module is distributed close to the first end, and the second end is distributed substantially flush with a side edge of the cleaning member.

[0127] In some examples of the present disclosure, the light generated by the developing module is colored light or transparent light.

[0128] In some examples of the present disclosure, the developing module has two opposite sides, and the side away from the cleaning member is exposed to the housing without any obstruction, so that light can be irradiated toward the outside of the housing to obtain a wider range of illumination.

[0129] As shown in Figure 5, the cleaning head according to the third aspect of the present disclosure includes: a shell; a cleaning member, which is rotatably arranged in the shell; a developing module, which is arranged on one side of the cleaning member, and the developing module includes: a light-emitting member and a light beam processing member, the light beam processing member is used to receive light emitted from the light-emitting member and guide the light to the surface to be cleaned, thereby irradiating dirt on the area of ​​the surface to be cleaned, the area is sector-shaped, and the sector includes a first edge and a second edge, the first edge is close to the front end of the cleaning member, and the angle between the first edge and the front edge of the cleaning member is B, and B is an acute angle greater than or equal to 20°.

[0130] In some examples of the present disclosure, B satisfies the relationship: 20°≤B≤60°.

[0131] In some examples of the present disclosure, B satisfies the relationship: 25°≤B≤45°.

[0132] In some examples of the present disclosure, the angle between the second edge and the front edge of the cleaning member is C, and C satisfies the relationship: greater than or equal to 131°.

[0133] In some examples of the present disclosure, C satisfies the relationship: 133°≤C≤180°.

[0134] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤180°.

[0135] In some examples of the present disclosure, C satisfies the relationship: 135°≤C≤170°.

[0136] In some examples of the present disclosure, C satisfies the relationship: 140°≤C≤170°.

[0137] In some examples of the present disclosure, C satisfies the relationship: greater than or equal to 135°.

[0138] In some examples of the present disclosure, C satisfies the relationship: 131°≤C≤139°.

[0139] In some examples of the present disclosure, the sector includes a first edge and a second edge, and a central axis is included between the two edges. The angle between the central axis and the front edge of the cleaning member is A, and A satisfies the relationship: 66°≤A≤90°.

[0140] In some examples of the present disclosure, A satisfies the relationship: 70°≤A≤85°.

[0141] In some examples of the present disclosure, the first edge is substantially parallel to an extension direction of a front edge of the cleaning member.

[0142] In some examples of the present disclosure, the developing module is an LED module, and the LED module is a single LED lamp bead module.

[0143] As shown in FIG6 , in some examples of the present disclosure, the outer peripheral surface of the light beam processing component 32 includes an optical surface, and the optical surface is used to emit at least part of the light from the light emitting component 31 to form the above-mentioned light and shadow area.

[0144] In some examples of the present disclosure, the light and shadow area may be formed by the light emitting element 31 itself and / or light having sufficient light intensity, that is, the emission angle of the light emitting element is large and / or the light intensity is strong, and finally the light and shadow area is obtained.

[0145] In some examples of the present disclosure, the light and shadow area can also be formed by a light-emitting component with a certain emission angle and a certain light intensity, which is then projected through the optical surface of the beam processing component 32 to obtain the light and shadow area. With the help of the transformation of the optical surface, a larger range of light and shadow area can be obtained.

[0146] In some examples of the present disclosure, combined with the range requirements of the light and shadow area, the optical surface may include one or more. As shown in Figure 6, in some examples of the present disclosure, the outer peripheral surface of the light beam processing part 32 includes a first optical surface 331, a second optical surface 332, a third optical surface 333 and a fourth optical surface 334 that are smoothly connected. The light beam processing part 32 is exposed on the outer peripheral surface of the floor brush body 100, and at least part of the light from the light emitting part 31 can be emitted through the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 to form the above-mentioned light and shadow area for focusing. In this embodiment, the central axis of the light emitting part 31 is set at an angle to the forward direction of the floor brush body 100, so that the emitted light of the light source is emitted toward the front side of the cleaning part 20 after passing through the first optical surface 331 to form the above-mentioned light and shadow area. The first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 change the propagation path of the light emitted from the light emitting component 31, including the following aspects: the first optical surface 331 and the third optical surface 333 control the horizontal angle and the clear cutoff lines on both sides, and the second optical surface 332 and the fourth optical surface 334 control the upper and lower light output to ensure that the light is emitted to the ground as much as possible and the light does not go upward.

[0147] In one embodiment, the above-mentioned "sector" does not include an astigmatism area. By arranging the first optical surface 331, the second optical surface 332, the third optical surface 333 and the fourth optical surface 334 in a smoothly connected form, the emission direction of the astigmatism can be changed so that the light is emitted toward the front of the floor brush body 100, thereby preventing the application from forming an astigmatism area on the ground and causing the user to feel light leakage. The above-mentioned "astigmatism" refers to light that does not originally fall into the light and shadow area.

[0148] In one embodiment, the first optical surface 331, the second optical surface 332, the third optical surface 333, and the fourth optical surface 334 are curved surfaces, and the light-emitting element 31 is capable of forming a generally conical light beam in front of the light beam processing element 32. In a horizontal direction parallel to the ground, the cone angle of the light beam ranges from 140° to 160°; in a vertical direction perpendicular to the ground, the cone angle of the light beam ranges from 15° to 25°. It should be noted that, in this specification, "generally" can be understood as close to, approximately, or within a predetermined range of a target value.

[0149] In other embodiments, the outer peripheral surface of the beam processing element 32 may include two optical surfaces, such as only a first optical surface 331 and a third optical surface 333. The two optical surfaces are arranged opposite each other and extend in a direction perpendicular to the direction of travel. This effectively transmits light from the light-emitting element 31 and diffuses it outward, ultimately creating a wide range of light and shadow areas. The first optical surface 331 and the third optical surface 333 may be flat or curved.

[0150] In some examples of the present disclosure, the first optical surface 331, the second optical surface 332, the third optical surface 333, and the fourth optical surface 334 are curved surfaces, enabling the light-emitting element 31 to form a generally conical light beam in front of the light beam processing element 32. In a horizontal direction parallel to the ground, the cone angle of the light beam ranges from 140° to 160°; in a vertical direction perpendicular to the ground, the cone angle of the light beam ranges from 15° to 25°. It should be noted that, in this specification, "generally" can be understood as close to, approximately, or within a predetermined range of a target value.

[0151] Based on the above three aspects of the cleaning head and the embodiments in the cleaning head, the following also applies to all embodiments:

[0152] To help users clearly see the impurities reflected on the ground, the light generated by the developing module 30 is either colored or transparent. The light generated by the developing module 30 is preferably green, as green light has a longer wavelength and can be displayed at a greater distance. Green also symbolizes freshness, ideals, and hope, and can also alleviate eye fatigue to a certain extent. The light generated by the developing module 30 can include, but is not limited to, green. Other colors, such as white, red, and yellow, are also possible, and we will not elaborate on them here.

[0153] In the horizontal direction parallel to the surface to be cleaned, the cone angle of the light beam ranges from 140° to 160°;

[0154] In a direction perpendicular to the surface to be cleaned, the cone angle of the light beam ranges from 15° to 25°.

[0155] In some examples of the present disclosure, the height between the center position of the light-emitting element and the bottom end surface of the cleaning element ranges from 5 to 10 mm.

[0156] In some examples of the present disclosure, the cleaning head further includes a drive unit;

[0157] The cleaning member has a first end connected to the driving unit in transmission, and a second end opposite to the first end, the second end being a detachable end of the cleaning member, and the developing module is adjacent to one of the first end and the second end.

[0158] In some examples of the present disclosure, the developing module is distributed close to the first end, and the second end is distributed substantially flush with a side edge of the cleaning member.

[0159] In some examples of the present disclosure, the light generated by the developing module is colored light or transparent light.

[0160] In some examples of the present disclosure, the developing module has two opposite sides, and the side away from the cleaning member is exposed to the housing without any obstruction, so that light can be irradiated toward the outside of the housing to obtain a wider range of illumination.

[0161] In some examples of the present disclosure, a portion of the sector is located below the cleaning member, and another portion of the sector is located in front of a front edge of the cleaning member.

[0162] According to some optional embodiments of the present disclosure, as shown in conjunction with FIG3 , a portion of the sector is located below the cleaning member 20, and another portion of the sector is located in front of the front edge of the cleaning member 20. Specifically, a first edge 33 of the sector is substantially parallel to the extension direction of the front edge of the cleaning member 20, and the first edge 33 is closer to the central axis of the cleaning member 20 relative to the front edge of the cleaning member 20. This allows the range illuminated by the first edge 33 to overlap with the front edge of the cleaning member 20, thereby expanding the illumination range on the surface to be cleaned and ensuring that the surface to be cleaned below the arc segment corresponding to the front edge of the cleaning member 20 is illuminated, thereby improving the visibility of dirt on the surface to be cleaned.

[0163] According to some optional embodiments of the present disclosure, as shown in FIG3 , the divergence angle of the light beam emitted by the developing module 30 on the vertical plane is β, and β satisfies the relationship: 2°≤β≤20°. Specifically, the divergence angle of the light beam emitted by the developing module 30 on the vertical plane is small. This shallow-angle lighting can improve the user's visual detection of dirt on the surface to be cleaned. In the user's visual perception, the light scattered by such dirt appears brighter than the light reflected from the surface to be cleaned, and a relatively long shadow will be cast behind the dirt, which can form a clear contrast with the relatively brightly illuminated dirt. Such a lighting effect can effectively help the user identify dirt on the surface to be cleaned, and increase the possibility of dirt being captured by the cleaning head 100 when the cleaning head 100 moves back and forth on the surface to be cleaned, reducing the time spent cleaning the surface to be cleaned, and thus reducing power consumption. For example, the divergence angle β of the light beam emitted by the developing module 30 on the vertical plane is 2°, 10°, and 20°, but is not limited to this.

[0164] Specifically, β satisfies the relationship: 2°≤β≤9°. The divergence angle of the light beam emitted by the developing module 30 on the vertical plane ranges from 2° to 9°, which can make the angle of light shining on the dirt shallower, further improve the user's visual detection of dirt on the surface to be cleaned, effectively help the user identify dirt on the surface to be cleaned, and increase the possibility of dirt being captured by the cleaning head 100 when the cleaning head 100 moves back and forth on the surface to be cleaned, thereby reducing the time spent on cleaning the surface to be cleaned and thus reducing power consumption. For example, the divergence angle β of the light beam emitted by the developing module 30 on the vertical plane is 2°, 6° and 9°, but is not limited to this.

[0165] According to some optional embodiments of the present disclosure, in combination with FIG3 , the angle between the central axis of the light beam emitted by the developing module 30 and the surface to be cleaned is γ, and γ satisfies the relationship: 2°≤γ≤10°. Specifically, the angle between the central axis of the light beam emitted by the developing module 30 and the surface to be cleaned is small, so that the shadow formed by the developing module 30 on the dirt on the surface to be cleaned can be projected longer, forming a clear contrast with the relatively brightly illuminated dirt, thereby facilitating the user to identify the dirt on the surface to be cleaned, increasing the possibility of the dirt being captured by the cleaning head 100 when the cleaning head 100 moves back and forth on the surface to be cleaned, reducing the time spent on cleaning the surface to be cleaned, and thus reducing power consumption. The angle γ between the central axis of the light beam emitted by the developing module 30 and the surface to be cleaned is 2°, 6° and 10°, but is not limited thereto.

[0166] According to some optional embodiments of the present disclosure, as shown in FIG3 , the distance between the center of the light-emitting element 31 and the surface to be cleaned in the vertical direction is H, and H satisfies the relationship: 2mm≤H≤9.8mm. Specifically, in the vertical direction, the distance between the center of the light-emitting element 31 and the surface to be cleaned is smaller, so that the light emitted by the light-emitting element 31 can be closer to the dirt on the surface to be cleaned, and the illumination angle of the developing module 30 can be shallower, which is beneficial for the user to identify the dirt on the surface to be cleaned, increases the possibility of the dirt being captured by the cleaning head 100 when the cleaning head 100 moves back and forth on the surface to be cleaned, reduces the time spent on cleaning the surface to be cleaned, and thus can reduce power consumption. The direction can refer to the front-to-back direction AA; the left-right direction BB; and the up-down direction CC of Figures 1 to 3.

[0167] According to some optional embodiments of the present disclosure, as shown in Figures 1 and 2, the housing 10 includes a first sidewall 11 and a second sidewall 12 axially opposed to each other with respect to a cleaning member 20. The cleaning member 20 is rollably disposed between the first sidewall 11 and the second sidewall 12, and the developing module 30 is disposed adjacent to the first sidewall 11. Specifically, the front edge of the cleaning member 20 is located between the first sidewall 11 and the second sidewall 12. The first sidewall 11 and the second sidewall 12, spaced axially along the cleaning member 20 on the housing 10, define a majority of the area of ​​the surface to be cleaned where debris is irradiated by the developing module 30. When the cleaning head 100 moves across the surface to be cleaned, the developing module 30 provides debris irradiation. This arrangement, based on a more obvious visualization of debris, can facilitate user selection of a movement path and push frequency. For example, if there is too much debris ahead, the user can push more slowly to ensure that the debris is fully cleaned. For stubborn debris, the user can also repeatedly clean the debris to ensure a good cleaning effect. The first sidewall 11 can be either the right sidewall or the left sidewall.

[0168] Specifically, as shown in Figures 1 and 2 , a suction chamber 13 is formed between the first side wall 11 and the second side wall 12, and the developing module 30 is disposed between the first side wall 11 and the suction chamber 13. When the cleaning device is performing a cleaning operation, the cleaning head 100 includes an air inlet 40, and dust is rolled up by the cleaning member 20. Driven by negative pressure, the dust-laden airflow enters the suction chamber 13 from the air inlet 40. Positioning the developing module 30 on one side of the cleaning head 100 allows the developing module 30 to be accommodated in the cleaning head 100 without excessively increasing the height of the cleaning head 100, and also allows the developing module 30 to be positioned relatively close to the surface to be cleaned, thereby improving the rationality of the structural layout of the cleaning head 100.

[0169] According to some optional embodiments of the present disclosure, the light beam processing member 32 is a light beam processing member that receives the emitted light and directs the light beam toward the surface to be cleaned. Specifically, the light beam processing member has excellent light-gathering capabilities, a long range, and strong penetrating power. The light beam processing member 32 uses a light beam processing member to receive the light emitted from the light-emitting member 31 and direct the light toward the surface to be cleaned where the cleaning head 100 is placed. This can illuminate dirt on the flat surface area to be cleaned more clearly and brightly, thereby increasing the likelihood that dirt will be captured by the cleaning head 100 as it moves back and forth over the surface to be cleaned, reducing the time spent cleaning the surface to be cleaned, and thus reducing power consumption.

[0170] The cleaning device according to the fourth embodiment of the present disclosure includes: the cleaning head 100 of the above embodiment. Specifically, the cleaning device with the cleaning head 100 can improve the user's visibility of dirt on the surface to be cleaned in an environment with poor visibility, thereby achieving a better cleaning effect.

[0171] According to some optional embodiments of the present disclosure, the cleaning device is a handheld cleaning device or a wet mopping floor scrubber. Specifically, the handheld cleaning device and the floor scrubber have a large working range, are more convenient, and can be applied to more cleaning environments.

[0172] According to some optional embodiments of the present disclosure, the cleaning device further includes a main unit connected to the housing 10 and containing a battery for powering the main unit. Thus, the cleaning device can be a cordless vacuum cleaner or a cordless floor scrubber. Specifically, the main unit and the housing 10 are connected as a single unit, and the main unit contains a battery for providing power to the cleaning device during cleaning and lighting operations, thereby improving the structural stability and design rationality of the cleaning device.

[0173] According to some optional embodiments of the present disclosure, the cleaning device further includes a main unit, which is connected to the housing 10. A power unit and a controller are provided in the main unit, and both the power unit and the light-emitting element 31 are electrically connected to the controller. Specifically, the main unit and the housing 10 of the cleaning device are interconnected as a whole. The main unit is provided with a power unit that drives the cleaning device to perform cleaning operations and a controller that controls the cleaning device to perform cleaning functions according to user needs. Both the power unit and the light-emitting element 31 are connected to the controller via electrical signals, thereby improving the response speed and accuracy of the power unit and the light-emitting element 31. The power unit can be a motor.

[0174] According to one embodiment of the present disclosure, when the power unit of the cleaning device is turned on, the controller is configured to activate the developer module 30. For example, the controller can provide a constant power to the developer module 30 so that when the motor is turned on, the intensity of the light emitted from the developer module 30 does not change. In another example, the controller can vary the power provided to the developer module 30 over time so that the output light power of the developer module 30 varies over time.

[0175] For another example, the power provided by the controller to the developing module 30 can be changed step by step, or can be changed gradually. Wherein, the power provided to the developing module 30 gradually increases from when the power unit is turned on until it reaches the maximum supply power.

[0176] For another example, the maximum optical output power of the light emitting element 31 is 10 mW in this embodiment. Within 1 second after the motor is turned on, the rate of increase of the power provided to the developing module 30 can be constant or can vary over time. When the motor is turned on, the rate of increase of the power can be relatively slow and increase gradually or stepwise over time. Furthermore, in this embodiment, the light emitting element 31 is a laser diode, and the controller is connected to the mating end 50 of the cleaning head 100 via one or more wires, and then connected to the developing module 30 via wires within the mating end 50.

[0177] According to another embodiment of the present disclosure, the controller can delay providing power to the developer module 30 for a period of time after the motor has been turned on. This period of relatively low or no power to the developer module 30 can accommodate the time when the user positions the cleaning head 100 over the work surface after turning on the motor, and thus can accommodate the time when the developer module 30 is not projecting light onto the surface to be cleaned.

[0178] Optionally, when the motor is turned off, the controller is arranged to immediately stop supplying power to the developer module 30. The controller may be arranged to adjust the power supply to the developer module 30 based on changes in the state of the cleaning head 100 or the cleaning device when the motor is turned on. For example, the controller may pause, reduce, or otherwise adjust the power supply to the developer module 30 based on the orientation of the cleaning head 100 or the cleaning device. One of the cleaning head 100 or the cleaning device may include a sensor that outputs a signal to the controller that varies based on its orientation, and the controller may be arranged to adjust the power supply to the developer module 30 based on the output from the sensor.

[0179] Furthermore, if the cleaning head 100 is lifted off the work surface, the controller can adjust the power supply to the developer module 30. The cleaning head 100 can include a sensor, such as a steering wheel that detects whether the cleaning head 100 has been lifted off the work surface, or a sensor that detects the air pressure within the suction chamber 13, and the controller can be arranged to adjust the power supply to the developer module 30 based on the signal received from the sensor. When the behavior of the cleaning device changes, this change can indicate an interruption in the cleaning process, which can reduce the power consumption of the developer module 30, for example, by relocating the cleaning device to another location in the home, thereby saving battery energy.

[0180] The controller is further configured to stop supplying power to the controller when the motor is turned off by the user or when the battery is exhausted, which will also cause the light-emitting element 31 to be turned off, thereby achieving the effect of turning off the light-emitting element 31 in a timely and effective manner.

[0181] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. Cleaning head, including: case; a cleaning member, the cleaning member being rotatably disposed in the housing; A developing module, wherein the developing module is arranged on one side of the cleaning member, and the developing module includes: a light-emitting member and a light beam processing member, wherein the light beam processing member is used to receive light emitted from the light-emitting member and direct the light to the surface to be cleaned, thereby irradiating dirt on the area of ​​the surface to be cleaned, wherein the area is in the shape of a sector, and the sector includes a first edge and a second edge, and compared with the second edge, the first edge is adjacent to the cleaning member, and the second edge extends in a direction away from the cleaning member, and the angle between the second edge and the front edge of the cleaning member is C, and C satisfies the relationship: greater than or equal to 131°.

2. The cleaning head according to claim 1, wherein C satisfies the relationship: 133°≤C≤180°.

3. The cleaning head according to claim 2, wherein: C satisfies the relationship: 140°≤C≤180°.

4. The cleaning head according to claim 2 or 3, wherein: C satisfies the relationship: 135°≤C≤170°.

5. The cleaning head according to claim 4, wherein: C satisfies the relationship: 140°≤C≤170°.

6. The cleaning head according to any one of claims 1 to 5, wherein: C satisfies the relationship: greater than or equal to 135°.

7. The cleaning head according to any one of claims 1 to 6, wherein: C satisfies the relationship: 131°≤C≤139°.

8. The cleaning head according to any one of claims 1 to 7, wherein: The sector includes a first edge and a second edge, a central axis is included between the two edges, and an angle A is included between the central axis and the front edge of the cleaning member, and A satisfies the relationship: 66°≤A≤90°.

9. The cleaning head according to claim 8, wherein: A satisfies the relationship: 70°≤A≤85°.

10. The cleaning head according to claim 9, wherein A satisfies the relationship: 70°≤A≤80°.

11. The cleaning head according to any one of claims 1 to 10, wherein: The divergence angle of the light beam emitted by the developing module on the vertical plane is β, and β satisfies the relationship: 2°≤β≤20°.

12. The cleaning head according to claim 11, wherein β satisfies the relationship: 2°≤β≤9°.

13. The cleaning head according to any one of claims 1 to 12, wherein: The angle between the central axis of the light beam emitted by the developing module and the surface to be cleaned is γ, and γ satisfies the relationship: 2°≤γ≤10°.

14. The cleaning head according to any one of claims 1 to 13, wherein The distance between the center of the light-emitting element and the surface to be cleaned in the vertical direction is H, and H satisfies the relationship: 2mm≤H≤9.8mm.

15. The cleaning head according to any one of claims 1 to 14, wherein C satisfies the relationship: 135°≤C≤180°.

16. A cleaning head according to any one of claims 1 to 15, wherein The first edge is substantially parallel to an extending direction of the front edge of the cleaning member.

17. A cleaning head according to any one of claims 1 to 16, wherein: The developing module is an LED module, and the LED module is a single LED lamp bead module.

18. A cleaning head according to any one of claims 1 to 17, wherein The light beam processing component is covered on the light emitting component, and the outer peripheral surface of the light beam processing component includes a first optical surface, a second optical surface, a third optical surface and a fourth optical surface that are smoothly connected. At least part of the light from the light emitting component can be emitted through the first optical surface, the second optical surface, the third optical surface and the fourth optical surface to form a light and shadow area.

19. The cleaning head according to claim 18, wherein The developing module also includes a substrate arranged on the cleaning component, the light-emitting component is arranged on the substrate, and a rubber package is provided on the outer periphery of the light-emitting component, and the light beam processing component is arranged on the substrate through the rubber package.

20. The cleaning head according to claim 18 or 19, wherein The light beam processing component is exposed on one side of the outer peripheral surface of the cleaning component, and the central axis of the light emitting component is set at an angle to the forward direction of the cleaning component, so that the emitted light of the light emitting component is emitted toward the front side of the cleaning component after passing through the first optical surface, the second optical surface, the third optical surface and the fourth optical surface of the light beam processing component.

21. A cleaning head according to any one of claims 18 to 20, wherein The light beam processing member is formed into a structure similar to a quadrangular pyramid, the first optical surface, the second optical surface, the third optical surface and the fourth optical surface are all curved surfaces, and the light emitting member is capable of forming a substantially conical light beam in front of the light beam processing member; In the horizontal direction parallel to the surface to be cleaned, the cone angle of the light beam ranges from 140° to 160°; In a direction perpendicular to the surface to be cleaned, the cone angle of the light beam ranges from 15° to 25°.

22. A cleaning head according to any one of claims 1 to 21, wherein The height between the center of the light-emitting element and the bottom end surface of the cleaning element ranges from 5 to 10 mm.

23. A cleaning head according to any one of claims 1 to 22, wherein The cleaning head further includes a driving unit; The cleaning member has a first end connected to the driving unit in transmission, and a second end opposite to the first end, the second end being a detachable end of the cleaning member, and the developing module is adjacent to one of the first end and the second end.

24. The cleaning head according to claim 23, wherein The developing module is distributed close to the first end, and the second end is distributed substantially flush with the side edge of the cleaning member.

25. A cleaning head according to any one of claims 1 to 24, wherein The light generated by the developing module is colored light or transparent light.

26. A cleaning head according to any one of claims 1 to 25, wherein The developing module has two opposite sides, and the side away from the cleaning member is exposed to the housing without being blocked, so that light can be irradiated toward the outside of the housing to obtain a wider range of irradiation.

27. A cleaning head according to any one of claims 1 to 26, wherein An angle B between the first edge and the front edge of the cleaning member is an acute angle greater than or equal to 20°.

28. The cleaning head according to claim 27, wherein B satisfies the relationship: 20°≤B≤60°.

29. The cleaning head according to claim 28, wherein B satisfies the relationship: 25°≤B≤45°.

30. Cleaning apparatus comprising a cleaning head as claimed in any one of claims 1 to 29.

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