CN215838702U

CN215838702U - Dust collector and floor brush thereof

Info

Publication number: CN215838702U
Application number: CN202121110278.6U
Authority: CN
Inventors: 范永斌; 常方圆; 程福萍
Original assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-02-18
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to a dust collector and a floor brush thereof, wherein the floor brush comprises: the device comprises a machine shell (2), a magnetic field generating device (4), a first coil (5) and an electric light source (6), wherein the first coil (5) and the electric light source (6) are arranged on the machine shell (2), and the first coil (5) and the electric light source (6) are electrically connected; wherein the magnetic field generating device is used for generating a changing magnetic field, and the first coil (5) is used for receiving the changing magnetic field to generate a current for driving the electric light source (6) to emit light. The ground brush transmits energy to the first coil through the changed magnetic field to generate current for driving the electric light source to emit light, so that the length of a cable for supplying power to the electric light source can be greatly shortened, and the dust collector is easy to assemble and disassemble.

Description

Dust collector and floor brush thereof

Technical Field

The utility model relates to the technical field of household appliances, in particular to a dust collector and a floor brush thereof.

Background

In order to facilitate the operation of the vacuum cleaner under the condition that the light source is dark or dark, a lighting device is usually arranged on the floor brush.

The power supply device is usually arranged on a main machine of the dust collector, and in order to supply power to the lighting device, the power supply device on the main machine and the lighting device on the floor brush need to be connected through a cable. Because the cable can pass through a plurality of connecting parts on the dust collector, the assembly is complicated, the cost is high, and the disassembly and the maintenance are not convenient.

For example, the end cap of the floor brush is usually detachable, so that the roller brush connected to the end cap can be easily detached, and if the lighting device is disposed on the end cap of the floor brush, the cable for supplying power to the lighting device also needs to extend to the end cap and be fixed on the end cap, so that the end cap is inconvenient to detach.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of how to reduce the length of a cable for supplying power to a lighting device, thereby reducing the assembly difficulty and the disassembly difficulty of a dust collector.

The technical scheme for solving the technical problems is as follows:

a floor brush of a vacuum cleaner, comprising: the device comprises a shell, a magnetic field generating device, a first coil and an electric light source, wherein the first coil and the electric light source are arranged on the shell and are electrically connected;

the magnetic field generating device is used for generating a changing magnetic field, and the first coil is used for receiving the changing magnetic field to generate current for driving the electric light source to emit light.

The utility model has the beneficial effects that:

the energy is transmitted to the first coil through the changed magnetic field to generate the current for driving the electric light source to emit light, so that the length of a cable for supplying power to the electric light source can be greatly shortened, and the dust collector is easy to assemble and disassemble.

Further, the floor brush also comprises

The rolling brush is rotationally connected with the machine shell and can roll around the axis of the machine shell;

the magnetic field generating device is a magnet and is arranged on the rolling brush and deviated from the axis of the rolling brush, and the first coil is arranged on the machine shell and close to the motion path of the magnetic field generating device.

Further, the magnetic field generating device comprises a second coil arranged close to the first coil, and the second coil is used for introducing alternating current to generate a variable magnetic field.

Further, the ground brush also comprises a rectifying circuit which is respectively and electrically connected with the first coil and the electric light source;

the rectifying circuit is used for converting alternating current input by the first coil into direct current and transmitting the direct current to the electric light source.

Furthermore, the ground brush also comprises a filter circuit, and the filter circuit is electrically connected with the rectifying circuit;

the filter circuit is used for filtering voltage ripples of the direct current output by the rectifying circuit.

Further, the electric light source is electrically connected with the first coil through a cable;

the alternating current generated by the first coil is transmitted to the electric light source to drive the electric light source to emit light.

Further, the magnetic field generating device is configured such that one magnetic pole of the magnetic field generating device faces the first coil and the other magnetic pole faces away from the first coil when the magnetic field generating device is moved to be closest to the first coil.

Further, a tangent line passing through a point of the motion path closest to the first coil and tangent to the motion path is parallel to the central axis of the first coil.

Further, the magnetic field generating device is provided in plurality, and the magnetic field generating devices are arranged at intervals in the circumferential direction of the rolling brush.

Further, a plurality of the magnetic field generating devices are evenly distributed around the axis.

Further, the housing comprises a main housing and a first end cover arranged on the main housing, and the first end cover is detachably connected with the main housing;

the first coil and the electric light source are disposed on the first end cap.

Furthermore, one end of the rolling brush is rotatably connected with the first end cover, and the magnetic field generating device is arranged at one end of the rolling brush close to the first coil.

Further, the housing further comprises a second end cover detachably connected with the main housing;

the second end cover is provided with a first coil and an electric light source electrically connected with the first coil;

the rolling brush is arranged between the first end cover and the second end cover, and two opposite ends of the rolling brush are respectively close to the first end cover and the second end cover and are respectively provided with a magnetic field generating device.

Further, the housing comprises a main housing and first end covers respectively arranged on the main housing, and the first end covers are detachably connected with the main housing;

the floor brush also comprises

The mounting shell covers the machine shell and is detachably connected with the machine shell;

wherein the first coil and the electric light source are disposed on the first end cap, and the second coil is disposed on the mounting case.

The technical scheme for solving the technical problems is as follows: a dust collector is provided with the floor brush according to any one of the technical schemes.

The beneficial effects of the utility model are the same as those of the floor brush, and are not described herein again.

Drawings

Fig. 1 is a schematic perspective view of a floor brush according to a first embodiment of the present invention;

FIG. 2 is a disassembled view of a floor brush according to a first embodiment of the present disclosure;

FIG. 3 is a schematic view of a floor brush according to a first embodiment of the present invention;

FIG. 4 is a circuit diagram according to a first embodiment of the present invention;

FIG. 5 is a circuit diagram according to a second embodiment of the present invention;

FIG. 6 is a schematic view of a floor brush of the third embodiment of the present invention;

fig. 7 is a circuit diagram in the third embodiment of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a floor brush; 1a, a floor brush; 11. a drive mechanism; 111. a motor; 112. a speed reducer; 12. a pipe bending joint; 2. a housing; 20. accommodating grooves; 21. a first end cap; 201. an inner cover; 2011. a shaft hole; 202. an outer cover; 22. a mounting seat; 23. a main housing; 231. an upper cover; 232. a base; 233. mounting a shell; 2331. an upper cover; 2332. a connecting plate; 2333. a connecting pipe; 24. a second end cap; 3. rolling and brushing; 31. a drum; 32. a cover body; 33. a rotating shaft; 4. a magnetic field generating device; 5. a first coil; 5a, an alternating current power supply; 5b, a second coil; 6. an electric light source; 61. a first positive electrode; 62. a second negative electrode; 7. a bearing; 8. a rectifying circuit; 81. a first diode; 82. a second diode; 83. a third diode; 84. a fourth diode; 85. a first AC input; 86. a second AC input; 87. a negative output end; 88. a positive output end; 9. a filter circuit; 91. a filter capacitor; 10. an electrical cable.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Example one

Referring to fig. 1 to 3, fig. 1 to 3 show a floor brush 1 of a vacuum cleaner in the present embodiment. The floor brush 1 comprises a housing 2, a roll brush 3, a magnetic field generating device 4, a first coil 5, an electric light source 6 and a bearing 7. The rolling brush 3 is arranged in the machine shell 2 and is rotationally connected with the machine shell 2. The rolling brush 3 and the casing 2 can be connected by pin joint. The magnetic field generating device 4 is provided on the roll brush 3. The first coil 5 and the electric light source 6 are both arranged on the housing 2. The magnetic field generating device 4 can generate a magnetic field that can move with the roll brush 3. When the magnetic field moves, the first coil 5 can cut the magnetic induction lines of the magnetic field to generate current, and the current can drive the electric light source 6 to emit light. That is, the first coil 5 can receive a changing magnetic field to generate a current.

In the present embodiment, the housing 2 includes a main casing 23. The main housing 23 includes a mounting housing 233. The mounting case 233 includes an upper housing 2331 and a connecting plate 2332. Upper housing 2331 is constructed as an arcuate plate with receiving pocket 20 disposed therein, and receiving pocket 20 may be straight, with receiving pocket 20 having a downwardly facing opening. The connection plate 2332 is connected to the upper cap 2331 and is disposed at one end of the receiving groove 20. The connecting plate 2332 is perpendicular to the extending direction of the receiving groove 20.

The housing 2 further comprises a first end cap 21 and a second end cap 24. The first and second end caps 21 and 24 are respectively provided at opposite ends of the mounting case 233. The first end cap 21 and the second end cap 24 are both detachably connected to the mounting case 233. First end cap 21 is located at an end of receiving pocket 20 opposite connecting plate 2332. The second end cap 24 covers the side of the connecting plate 2332 facing away from the first end cap 21. A removable connection is provided between the second end cap 24 and the connecting plate 2332. The first end cap 21 and the second end cap 24 may be parallel to each other.

In the present embodiment, the first end cap 21 includes an inner cap 201 and an outer cap 202. The inner cap 201 is disposed on the side of the outer cap 202 adjacent the second end cap 24. The inner cap 201 and the outer cap 202 are coupled together. The inner cover 201 and the outer cover 202 may be snap-fit or screw-fit. The inner cap 201 is inserted into the end of the receiving groove 20 and forms a detachable connection, such as a snap connection, with the upper cap 2331. The first end cap 21 is detachable from the upper housing 2331.

The outer cover 202 is provided with a mounting seat 22. The mounting seat 22 is configured in a cylindrical shape. The mounting seats 22 are arranged facing the two first end caps 21. The two mounting seats 22 are arranged coaxially. The inner lid 201 is provided with a shaft hole 2011, and the shaft hole 2011 penetrates through the inner lid 201.

The outer contour of the roller brush 3 is substantially cylindrical. The roll brush 3 is disposed in the receiving groove 20 of the cabinet 2. In the present embodiment, the roll brush 3 includes a drum 31, a cover 32, and a rotating shaft 33. The drum 31 has a cylindrical shape. The cover 32 is disc-shaped. The cover 32 covers an end of the drum 31 facing the first end cap 21. The cover 32 is coaxial with the drum 31. The cover 32 and the drum 31 may be snap-fit, adhesive, screw-fit, or interference fit. The shaft 33 is fixed to the lid 32. The rotation shaft 33 extends from the middle of the cover 32 in a direction away from the drum 31. The shaft 33 is disposed coaxially with the lid 32.

The bearing 7 is arranged in the mounting seat 22. The outer race of the bearing 7 is in interference fit with the mounting seat 22. The rotating shaft 33 passes through the shaft hole 2011 of the inner cover 201, and the inner ring of the bearing 7 is sleeved on the rotating shaft 33. The inner race of the bearing 7 is interference-fitted with the rotating shaft 33.

The floor brush 1 further comprises a drive mechanism 11, which drive mechanism 11 comprises a motor 111 and a speed reducer 112. The motor 111 may be configured in a cylindrical shape. The reduction gear 112 is a coaxial type reduction gear, for example, a planetary reduction gear. The decelerator 112 and the motor 111 are provided in the drum 31. The reducer 112, the motor 111, and the drum 31 are coaxially disposed. The housing of the decelerator 112 and the motor 111 do not abut against the inner wall of the drum 31. One end of the motor 111 is connected to the connection plate 2332, and the other end of the motor 111 is connected to the reducer 112. The main shaft of the motor 111 is connected to the input end of the reducer 112, and the output end of the reducer 112 is connected to the roller brush 3. The torque output from the motor 111 can be transmitted to the roller brush 3 through the speed reducer 112 to drive the roller brush 3 to roll. The speed reducer 112 reduces the speed and increases the torque output by the motor 111.

Therefore, the rolling brush 3 and the machine shell 2 form a rotary connection through the matching of the rotating shaft 33 and the bearing 7, and the rolling brush 3 can roll around the axis of the rolling brush. The driving mechanism 11 can provide power for the rolling of the rolling brush 3.

The magnetic field generating device 4 is a magnet, and is an object that can generate a magnetic field. The magnetic field generating means 4 may be a permanent magnet, which may be, for example, a neodymium-iron-boron magnet, a ferrite magnet, an alnico magnet, or a samarium-cobalt magnet. The magnetic field generating means 4 may also be a soft magnetic magnet. The magnetic field generating device 4 has two magnetic poles, an S pole and an N pole, respectively. Outside the magnetic field generating device 4, the direction of the magnetic induction lines is from N pole to S pole. In the present embodiment, two magnetic poles are respectively located at opposite ends of the magnetic field generating device 4. The magnetic field generating device 4 is provided on the lid 32 of the roller brush 3, and is offset from the axis of the roller brush 3. The magnetic field generating device 4 may be disposed at the edge of the cover 32. The magnetic field generating device 4 is fixed to the lid 32 and is rotatable about the axis of the roller brush 3 in accordance with the rolling of the roller brush 3. The magnetic field generating means 4 has a circular movement path as the roller brush 3 rolls. The path of movement is stationary relative to the housing 2.

The electric light source 6 is a device that converts electric power into light energy. The electric light source 6 emits light when energized. The electric light source 6 may be an incandescent lamp or a light emitting diode. The electric light source 6 is disposed on the outer cover 202.

The first coil 5 is a wire winding in the shape of a loop. The first coil 5 is formed by winding a wire in the same direction. The first coil 5 may be configured as a circular ring, an elliptical ring or a rectangular ring. The conductive line has an insulating layer. The first coil 5 may be hollow. The first coil 5 may also be provided with an iron core in the middle. The first coil 5 is disposed on the first end cover 21 of the housing 2 and is located on a side of the first end cover 21 close to the rolling brush 3. In the present embodiment, the first coil 5 is provided on the side of the inner lid 201 close to the outer lid 202. The magnetic field generating device 4 is disposed at an end of the roll brush 3 near the first coil 5. The first coil 5 is close to the movement path of the magnetic field generating means 4. The first coil 5 is used to power an electric light source 6.

When the rolling brush 3 rolls, the magnetic field generating device 4 moves along the moving path, in one moving period, the magnetic field generating device 4 can firstly get close to the first coil 5 and then get far away from the first coil 5, when the magnetic field generating device 4 gets close to the first coil 5, the magnetic field of the first coil 5 is increased to generate a positive current, when the magnetic field generating device 4 gets far away from the first coil 5, the magnetic field of the first coil 5 is decreased to generate a negative current, therefore, when the magnetic field generating device 4 keeps moving, the first coil 5 generates alternating current. The electric energy generated by the first coil 5 can be transmitted to the electric light source 6 to drive the electric light source 6 to emit light.

The magnetic field generating device 4 on the floor brush 1 is matched with the first coil 5 to convert the rolling mechanical energy of the rolling brush 3 into electric energy to supply power for the electric light source 6, and the length of the cable 10 for supplying power to the electric light source 6 can be greatly shortened, so that the dust collector is easy to assemble and disassemble.

It is understood that the magnetic field generating device 4 may also be disposed on the drum 31.

It will be appreciated that two sets of magnetic field generating means 4 may also be provided, the two sets of magnetic field generating means 4 being provided at opposite ends of the roller brush 3, respectively. Two electric light sources 6 may be provided, and two electric light sources 6 are provided on the first end cap 21 and the second end cap 24, respectively. The number of the first coils 5 may be two, two first coils 5 are respectively disposed on the first end cap 21 and the second end cap 24, and the two first coils 5 are respectively electrically connected to the two electric light sources 6. When the rolling brush 3 rotates, each first coil 5 can cut the magnetic induction line of the magnetic field generating device 4 close to the first coil to drive the electric light source 6 electrically connected with the first coil 5 to emit light.

The two electric light sources 6 are respectively positioned on the first end cover 21 and the second end cover 24, and can be lightened simultaneously, and the irradiation range of the electric light sources 6 is wider.

In an exemplary embodiment, the electrical light source 6 is a light emitting diode. The electric light source 6 comprises a first positive electrode 61 and a second negative electrode 62.

As shown in fig. 4, the floor brush 1 further comprises a rectifying circuit 8. The rectifier circuit 8 may be a full bridge rectifier circuit. The rectifying circuit 8 includes a first diode 81, a second diode 82, a third diode 83, a fourth diode 84, a first alternating current input terminal 85, a second alternating current input terminal 86, an anode output terminal 88, and a cathode output terminal 87.

The anodes of the first and

second diodes

81, 82 are electrically connected to the cathode output 87, the cathodes of the third and

fourth diodes

83, 84 are electrically connected to the anode output 88, the cathode of the first diode 81 and the anode of the third diode 83 are electrically connected to the first ac input 85, and the cathode of the second diode 82 and the anode of the fourth diode 84 are electrically connected to the second ac input 86.

Both ends of the wire of the first coil 5 are electrically connected to the first ac input terminal 85 and the second ac input terminal 86, respectively. The first positive electrode 61 of the electric light source 6 is electrically connected to the positive output terminal 88 and the second negative electrode 62 of the electric light source 6 is electrically connected to the negative output terminal 87.

Thus, the rectifying circuit 8 can convert the alternating current input from the first coil 5 into direct current and supply the direct current to the electric light source 6 to drive the electric light source 6 to emit light. The rectifying circuit 8 converts the alternating current into the direct current to be supplied to the light emitting diode, so that the light emitting diode can be stably lighted.

In an exemplary embodiment, the floor brush 1 further comprises a filter circuit 9. The filter circuit 9 includes a filter capacitor 91. The filter capacitor 91 has one terminal connected to the positive output terminal 88 of the rectifier circuit 8 and the other terminal connected to the negative output terminal 87 of the rectifier circuit 8. The filter capacitor 91 is connected in parallel with the electric light source 6.

The filter circuit 9 can filter out voltage ripples of the direct current output by the rectifying circuit 8, so that the voltage of the direct current output by the rectifying circuit 8 is more stable.

In an exemplary embodiment, the magnetic field generating means 4 may be arranged in a cylindrical shape. The two magnetic poles of the magnetic field generating device 4 are respectively located at two opposite ends of the magnetic field generating device 4. When the magnetic field generating device 4 moves to be closest to the first coil 5, one magnetic pole of the magnetic field generating device 4 faces the first coil 5, and the other magnetic pole of the magnetic field generating device 4 faces away from the first coil 5. For example, the S-pole of the magnetic field generating device 4 faces the first coil 5, and the N-pole of the magnetic field generating device 4 faces away from the first coil 5.

Thus, when the magnetic field generating device 4 and the first coil 5 are close to each other, the first coil 5 is located near one magnetic pole of the magnetic field generating device 4, the magnetic induction lines of the magnetic field cut by the first coil 5 are more dense, the current generated in the first coil 5 can be larger, and the power of the electric light source 6 is higher.

In an exemplary embodiment, the first coil 5 has a central axis. The wires in the first coil 5 encircle the central axis. The path of movement has a point closest to the first coil 5, through which point there is a tangent to the path of movement, which is parallel to the central axis of the first coil 5.

Thus, when the magnetic field generating device 4 is close to the first coil 5, one magnetic pole of the magnetic field generating device 4 faces the first coil 5, the two magnetic poles of the magnetic field generating device 4 face perpendicularly to the central axis of the first coil 5, the magnetic induction line covered by the first coil 5 is longer, and the power of the electric light source 6 is higher as the current generated in the first coil 5 is larger.

In an exemplary embodiment, the magnetic field generating device 4 is provided in plurality, and the plurality of magnetic field generating devices 4 are provided at intervals in the circumferential direction of the roll brush 3. The plurality of magnetic field generating devices 4 are uniformly distributed around the circumference of the rotating shaft 33. The plurality of magnetic field generating devices 4 are equidistant from the axis of rotation 33. When the rolling brush 3 rolls, the plurality of magnetic field generating devices 4 move along the same moving path.

The rolling brush 3 rolls for a circle, the plurality of magnetic field generating devices 4 sequentially pass through the first coil 5, and when each magnetic field generating device 4 passes through the first coil 5, the first coil 5 can generate alternating voltage of one period, so that the first coil 5 can output alternating voltage of a plurality of periods when the rolling brush 3 rolls for a circle, the more the magnetic field generating devices 4 are arranged, the higher the frequency of the alternating current output by the first coil 5 is, and the more stable the voltage of the alternating current is.

In one exemplary embodiment, mounting housing 233 is fabricated from a transparent material. The operating state of the roll brush 3 can be observed through the mounting case 233. Light from the electric light source 6 may also pass through the mounting case 233.

In an exemplary embodiment, mounting housing 233 further includes a connecting tube 2333. One end of connection pipe 2333 is connected to upper housing 2331. Connecting pipe 2333 may be connected to the middle of upper housing 2331. The connection pipe 2333 is also communicated with the receiving groove 20.

The floor brush 1 further comprises an elbow 12. The elbow joint 12 may be bent. The elbow fitting 12 is connected at one end to the end of the connecting tube 2333 that faces away from the upper housing 2331. One end of the elbow fitting 12 may be inserted into the connecting tube 2333. The other end of the connection pipe 2333 is adapted to be externally connected to an extension pipe (not shown) of the cleaner. The connection pipe 2333 may be detachably connected to the extension pipe.

The main housing 23 further includes an upper cover 231 and a base 232. Upper cover 231 is disposed above mounting housing 233 and elbow fitting 12, base 232 is disposed below mounting housing 233 and elbow fitting 12, and upper cover 231 and base 232 may be bolted together. Upper cover 231 and base 232 sandwich mounting shell 233 and elbow fitting 12 such that mounting shell 233 and elbow fitting 12 are secured together.

Example two

The floor brush in the second embodiment is different from the floor brush 1 in the first embodiment only in that the floor brush in the second embodiment does not have the rectifying circuit 8.

In this embodiment, the first coil 5a is directly connected to the electric light source 6a, as shown in fig. 5. Opposite ends of the wire of the first coil 5a are electrically connected to two terminals of the electric light source 6a through cables 10a, respectively. The alternating current generated by the first coil 5a directly drives the electric light source 6a to emit light, which electric light source 6a may be an incandescent lamp.

EXAMPLE III

As shown in FIG. 6, FIG. 6 shows a floor brush 1a of a vacuum cleaner in the present embodiment. The floor brush 1a includes a housing 2, a roll brush 3, a magnetic field generating device 4a, a first coil 5, an electric light source 6, and a bearing 7. The rolling brush 3 is arranged in the machine shell 2 and is rotationally connected with the machine shell 2.

In the present embodiment, the housing 2 includes a main casing 23. The main housing 23 includes a mounting housing 233. The mounting case 233 includes an upper housing 2331 and a connecting plate 2332. Upper housing 2331 is constructed as an arcuate plate with receiving pocket 20 disposed therein, and receiving pocket 20 may be straight, with receiving pocket 20 having a downwardly facing opening.

The housing 2 further comprises a first end cap 21. The first end cap 21 is detachably coupled to the mounting case 233 of the main housing 23. The first end cap 21 is located at one end of the receiving groove 20. The first end cap 21 is provided with a mounting seat 22. The mounting seat 22 is configured in a cylindrical shape. The mount 22 is provided at one side of the first end cap 21.

The outer contour of the roller brush 3 is substantially cylindrical. The roll brush 3 is disposed in the receiving groove 20 of the cabinet 2. In the present embodiment, the roll brush 3 includes a drum 31, a cover 32, and a rotating shaft 33. The drum 31 has a cylindrical shape. The cover 32 is disc-shaped. The cover 32 covers one end of the drum 31. The cover 32 is coaxial with the drum 31. The cover 32 and the drum 31 may be snap-fit, adhesive, screw-fit, or interference fit. The shaft 33 is fixed to the lid 32. The rotation shaft 33 extends from the middle of the cover 32 in a direction away from the drum 31. The shaft 33 is disposed coaxially with the lid 32.

The bearing 7 is arranged in the mounting seat 22. The outer race of the bearing 7 is in interference fit with the mounting seat 22. The inner ring of the bearing 7 is also sleeved on the rotating shaft 33. The inner race of the bearing 7 is interference-fitted with the rotating shaft 33.

Therefore, the rolling brush 3 and the machine shell 2 form a rotary connection through the matching of the rotating shaft 33 and the bearing 7, and the rolling brush 3 can roll around the axis of the rolling brush.

The electric light source 6 is a device that converts electric power into light energy. The electric light source 6 emits light when energized. The electric light source 6 may be an incandescent lamp or a light emitting diode.

The first coil 5 is a wire winding in the shape of a loop. The first coil 5 is formed by winding a wire in the same direction. The first coil 5 may be configured as a circular ring, an elliptical ring or a rectangular ring. The conductive line has an insulating layer. The first coil 5 may be hollow. The first coil 5 may also be provided with an iron core in the middle. The first coil 5 and the electric light source 6 are arranged on the first end cap 21. The first coil 5 is electrically connected to the electric light source 6.

The mounting case 233 is made of a transparent material. The operating state of the roll brush 3 can be observed through the mounting case 233. Light from the electric light source 6 may also pass through the mounting case 233.

The magnetic field generating device 4a includes a second coil 5b and an alternating current power supply 5 a. The second coil 5b may be disposed on the mounting case 233. The second coil 5b and the first coil 5 are close to each other. The central axis of the first coil 5 may be coincident with the central axis of the second coil 5 b. The second coil 5b is connected to an ac power supply 5 a. The ac power supply 5a supplies ac power to the second coil 5b, and the second coil 5b generates a changing magnetic field. The first coil 5 can generate current to drive the electric light source 6 to emit light after receiving the changing magnetic field.

Thus, the second coil 5b wirelessly transmits electric energy to the first coil 5 through the magnetic field, which can greatly shorten the length of the cable for supplying power to the electric light source 6, so that the dust collector is easy to assemble and disassemble.

As shown in fig. 7, the floor brush 1a further includes a rectifying circuit 8. The rectifier circuit 8 may be a full bridge rectifier circuit. The rectifying circuit 8 includes a first diode 81, a second diode 82, a third diode 83, a fourth diode 84, a first alternating current input terminal 85, a second alternating current input terminal 86, an anode output terminal 88, and a cathode output terminal 87.

The anodes of the first and

second diodes

fourth diodes

Example four

A dust collector is provided with the floor brush in the first embodiment, the second embodiment or the third embodiment.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A floor brush of a dust collector, comprising: the device comprises a machine shell (2), a magnetic field generating device (4), a first coil (5) and an electric light source (6), wherein the first coil (5) and the electric light source (6) are arranged on the machine shell (2), and the first coil (5) and the electric light source (6) are electrically connected;

wherein the magnetic field generating device is used for generating a changing magnetic field, and the first coil (5) is used for receiving the changing magnetic field to generate a current for driving the electric light source (6) to emit light.

2. A floor brush as claimed in claim 1, further comprising

The rolling brush (3) is rotationally connected with the shell (2) and can roll around the axis of the shell;

the magnetic field generating device (4) is a magnet and is arranged on the rolling brush (3) and is deviated from the axis of the rolling brush (3), and the first coil (5) is arranged on the machine shell (2) and is close to the movement path of the magnetic field generating device (4).

3. A floor brush according to claim 1, characterized in that the magnetic field generating means comprise a second coil (5b) arranged adjacent to the first coil (5), which second coil (5b) is adapted to be supplied with alternating current for generating a varying magnetic field.

4. A floor brush according to any of claims 1-3, characterized in that it further comprises a rectifying circuit (8), said rectifying circuit (8) being electrically connected to said first coil (5) and to said electric light source (6), respectively;

the rectifying circuit (8) is used for converting alternating current input by the first coil (5) into direct current and transmitting the direct current to the electric light source (6).

5. A floor brush as claimed in claim 4, characterized in that the floor brush further comprises a filter circuit (9), which filter circuit (9) is electrically connected to the rectifying circuit (8);

the filter circuit (9) is used for filtering voltage ripples of the direct current output by the rectifying circuit (8).

6. A floor brush according to any of claims 1-3, characterized in that the electric light source (6) is electrically connected with the first coil (5) by means of a cable (10 a);

the alternating current generated by the first coil (5) is transmitted to the electric light source (6) to drive the electric light source (6) to emit light.

7. A floor brush according to claim 2, characterized in that the magnetic field generating means (4) is arranged such that one pole of the magnetic field generating means (4) is directed towards the first coil (5) and the other pole is directed away from the first coil (5) when the magnetic field generating means (4) is moved closest to the first coil (5).

8. A floor brush according to claim 7, characterized in that a tangent to the movement path through the point of the movement path closest to the first coil (5) and tangential to the movement path is parallel to the centre axis of the first coil (5).

9. A floor brush according to claim 2, characterized in that the magnetic field generating means (4) is provided in plurality, and that the plurality of magnetic field generating means (4) are arranged at intervals in the circumferential direction of the roller brush (3).

10. A floor brush as claimed in claim 2,

the shell (2) comprises a main shell (23) and a first end cover (21) arranged on the main shell (23), wherein the first end cover (21) is detachably connected with the main shell (23);

the first coil (5) and the electric light source (6) are arranged on the first end cap (21).

11. A floor brush as claimed in claim 10,

the shell (2) also comprises a second end cover (24) detachably connected with the main shell (23);

the second end cover (24) is provided with a first coil (5) and an electric light source electrically connected with the first coil (5);

the rolling brush (3) is arranged between the first end cover (21) and the second end cover (24), and two opposite ends of the rolling brush (3) are respectively close to the first end cover (21) and the second end cover (24) and are respectively provided with a magnetic field generating device (4).

12. A floor brush according to claim 3,

the shell (2) comprises a main shell (23) and first end covers (21) respectively arranged on the main shell (23), and the first end covers (21) are detachably connected with the main shell (23);

the floor brush also comprises

The mounting shell (233) covers the machine shell (2) and is detachably connected with the machine shell (2);

wherein the first coil (5) and the electric light source (6) are arranged on the first end cap (21), and the second coil (5b) is arranged on the mounting shell (233).

13. A vacuum cleaner comprising a floor brush as claimed in any one of claims 1 to 12.