High-speed cleaning device

Abstract

The invention discloses a high-speed cleaning device which comprises a device shell, a brush head, a circuit board, a magnetic conductive sheet, excitation coil sets and a swing assembly, the swing assembly is rotationally arranged in the device shell and connected with the brush head, the brush head is located outside the device shell, and the excitation coil sets are arranged in the device shell. And each excitation coil group is symmetrically distributed on the two sides of the swinging assembly. The electromagnetic field and the permanent magnet are directly coupled for driving, and the establishment and disappearance of the magnetic field are both at a millisecond level through electronic commutation control, so that the brush head can realize ultrahigh-frequency positive and negative rotation swinging, the cleaning efficiency is remarkably improved, complex mechanical transmission parts are omitted, the overall structure is greatly simplified, the size is small, and the cost is low. And non-contact magnetic driving avoids collision and friction among parts, so that the operation noise and the mechanical vibration are reduced fundamentally, the use comfort is improved, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning tools, in particular to a high-speed cleaning device. BACKGROUND

[0002] The conventional rotary motor is used in the common electric cleaning tools (such as high-speed cleaning brush, sweeping machine roller brush, etc.) in the market to convert the rotary motion into swing or vibration through gear or connecting rod mechanism. This kind of transmission mode has some inherent defects: many mechanical transmission parts, complex structure, easy to produce wear and noise; there is a gap or delay in reversing, the response speed is limited, and it is difficult to realize the high-frequency forward and reverse switching; the vibration is large during high-speed operation, which affects the hand feeling and service life, and the energy consumption is high.

[0003] Therefore, we propose a high-speed cleaning device to solve the problems raised in the above background. SUMMARY

[0004] The purpose of the present application is to provide a high-speed cleaning device to solve the problems raised in the above background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a high-speed cleaning device, comprising: a device shell, a brush head, a circuit board, a magnetic guide sheet, a magnetic field coil group and a swing assembly, the swing assembly is rotatably arranged in the device shell, the swing assembly is connected to the brush head, the brush head is located outside the device shell, a plurality of magnetic field coil groups are arranged in the device shell, each magnetic field coil group is symmetrically distributed on both sides of the swing assembly. Each of the magnetic field coil groups comprises a coil assembly and a core assembly, wherein the coil assembly is fixedly connected to the core assembly, the same pair of coil assembly and core assembly are symmetrically distributed on both sides of the swing assembly, and the core assembly is located on the opposite side of the coil assembly and the swing assembly.

[0006] Preferably, the swing assembly comprises a transmission shaft passing through the plurality of magnetic field coil groups, the transmission shaft is made of high magnetic conductive material or embedded with high magnetic conductive material, the magnetic steel assembly is fixedly installed on the transmission shaft corresponding to the magnetic field coil group, and the magnetic steel assembly is not in contact with the core assembly. Preferably, the magnetic steel assembly comprises a first magnetic steel group and a second magnetic steel group which are symmetrically distributed, the first magnetic steel group and the second magnetic steel group are each composed of two magnetic steels, and the magnetic poles of the first magnetic steel group and the second magnetic steel group are symmetrical.

[0007] Preferably, the coil assembly is embeddedly installed on the side of the device shell, and the device shell is fixedly sleeved with the magnetic guide sheet corresponding to the coil assembly.

[0008] Preferably, the coil assembly is connected to the circuit board through the circuit, the circuit board is fixedly installed on the device shell, and the circuit board is connected to the external power supply through the circuit.

[0009] Preferably, the transmission shaft is fixedly installed with several output supports, and the output supports are movably penetrated through the device housing and fixedly connected with the brush head.

[0010] Preferably, a dustproof structure is installed at the joint of the output support and the device housing, and the dustproof structure comprises a dustproof fixed plate and a dustproof silica gel sleeve.

[0011] Preferably, bearings are installed at both ends of the transmission shaft, the outer rings of the bearings are fixedly connected with the device housing, and end covers are detachably installed at both ends of the device housing.

[0012] Compared with the prior art, the application has the following beneficial effects: 1. The electromagnetic field and the permanent magnet are directly coupled to drive, without any gear, connecting rod and other mechanical reversing and deceleration mechanism, so that the delay and gap of mechanical transmission are eliminated, the magnetic field is established and disappears in milliseconds through electronic reversing control, the brush head can realize super-high-frequency forward and reverse swing, the cleaning efficiency is significantly improved, and the application is suitable for various cleaning robots and floor washing machines. 2. The complex mechanical transmission parts are omitted, the overall structure is greatly simplified, the volume is small, the non-contact magnetic driving avoids the impact and friction between parts, the running noise and mechanical vibration are reduced from the root, and the comfort and service life of the device are improved. 3. The swing frequency, amplitude and force of the brush head can be realized by accurately adjusting the current parameters (such as frequency and duty cycle) of the input coil through the circuit board, the control is flexible, there is no mechanical wear point, the service life of the driving part mainly depends on the electrical elements, the reliability is high, and the maintenance requirement is low.

[0013] 4. The innovative dynamic dustproof structure (dustproof fixed plate and dustproof silica gel sleeve) is adopted, which can effectively prevent dust, liquid and other pollutants from entering the device interior when the output support swings at high speed, and improves the working durability in complex dirty environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the application; Figure 2 is a disassembly schematic diagram of the magnetic conductive sheet and the device housing in the application; Figure 3 is a disassembly schematic diagram of the device housing, the excitation coil assembly and the swing assembly in the application; Figure 4 is a disassembly schematic diagram of the excitation coil assembly and the swing assembly in the application; Figure 5 is an enlarged view of A in the application; Figure 4 ​Figure 6 In this invention Figure 4 Enlarged view of point B; Figure 7 This is a side view of the excitation coil assembly and the swing assembly in this invention; Figure 8 This is a schematic diagram of the magnetic poles of the core assembly and the oscillating assembly in this invention.

[0015] In the diagram: 1. Device housing; 2. Brush head; 3. Circuit board; 4. Magnetic sheet; 5. Excitation coil assembly; 51. Coil assembly; 52. Iron core assembly; 6. Swing assembly; 61. Magnet assembly; 611. First magnet assembly; 612. Second magnet assembly; 62. Drive shaft; 7. End cover; 8. Bearing; 9. Output bracket; 10. Dustproof fixing plate; 11. Dustproof silicone sleeve. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-8 The present invention provides a technical solution: a high-speed cleaning device, comprising: The device comprises a housing 1, a brush head 2, a circuit board 3, a magnetic sheet 4, an excitation coil group 5, and a swing assembly 6. The swing assembly 6 is rotatably installed inside the housing 1 and is connected to the brush head 2. The brush head 2 is located outside the housing 1. The housing 1 contains several excitation coil groups 5, which are distributed on both sides of the swing assembly 6. By passing direct current through the excitation coil groups 5 and switching the timing of the direct current, the polarity of the magnetic field of the excitation coil groups 5 is changed, driving the swing assembly 6 to rotate in both directions, thereby achieving high-speed swinging of the brush head 2 and high-speed cleaning of the target object.

[0018] Each excitation coil group 5 includes a pair of coil assemblies 51 and iron core assemblies 52. The coil assemblies 51 are fixedly connected to the iron core assemblies 52. The same pair of coil assemblies 51 and iron core assemblies 52 are symmetrically distributed on both sides of the swing assembly 6, and the iron core assemblies 52 are located on the side opposite to the coil assemblies 51 and the swing assembly 6. When the coil assemblies 51 are energized, a magnetic field is generated. The function of the iron core assemblies 52 is to concentrate, guide and enhance the magnetic field to drive the swing assembly 6.

[0019] The coil assembly 51 is embedded in the side of the device housing 1, and the magnetic sheet 4 is fixedly sleeved on the device housing 1 at the location corresponding to the coil assembly 51. The magnetic sheet 4 provides a preset path with high permeability and low magnetic resistance for the internal magnetic field.

[0020] Several coil assemblies 51 are connected to a circuit board 3 via a circuit. The circuit board 3 is fixedly mounted on the device housing 1 and is connected to an external power source via a circuit.

[0021] The swing assembly 6 includes a drive shaft 62 that passes through several sets of excitation coil groups 5. The drive shaft 62 is made of a high magnetic permeability material or nested with a high magnetic permeability material. A magnet assembly 61 is fixedly installed on the drive shaft 62 at the position corresponding to the excitation coil group 5. The magnet assembly 61 does not contact the iron core assembly 52 to reduce friction. The magnet assembly 61 includes a first magnet group 611 and a second magnet group 612 that are symmetrically distributed. Both the first magnet group 611 and the second magnet group 612 are composed of two magnets, and the magnetic poles of the first magnet group 611 and the second magnet group 612 are symmetrical. After the excitation coil group 5 is energized, the coil assembly 51 generates a continuous magnetic resistance torque through the iron core assembly 52, which acts on the magnet assembly 61 and drives the transmission shaft 62 to rotate forward, reverse and at high speed, thus realizing efficient and fast-response magnetic coupling and drive.

[0022] Several output brackets 9 are fixedly installed on the drive shaft 62. The output brackets 9 movably pass through the device housing 1 and are fixedly connected to the brush head 2. During the high-speed forward and reverse rotation of the drive shaft 62, the output brackets 9 swing at high speed, which in turn drives the brush head 2 to swing at high speed.

[0023] A dustproof structure is installed at the joint of the output bracket 9 and the arc device housing 1. The dustproof structure includes a dustproof fixing plate 10 and a dustproof silicone sleeve 11. The dustproof fixing plate 10 is fixed at the window of the device housing 1. The dustproof fixing plate 10 is fixedly connected to the outer edge of the dustproof silicone sleeve 11. The inner edge of the dustproof silicone sleeve 11 is tightly attached to the side of the output bracket 9 by its own elasticity. During the high-speed swinging process, the output bracket 9 repeatedly squeezes the dustproof silicone sleeve 11 to deform, maintaining the seal between the device housing 1 and the surface of the output bracket 9.

[0024] Bearings 8 are installed at both ends of the drive shaft 62. The outer ring of the bearing 8 is fixed to the inner part of the device housing 1 to realize the rotation of the drive shaft 62. End caps 7 are detachably installed at both ends of the device housing 1.

[0025] Working principle: The control module of circuit board 3 supplies pulsed DC current to the coil assembly 51 in the designated excitation coil group 5. The energized coil assembly 51 generates a magnetic field, which is focused and guided by the iron core assembly 52 that is closely connected to it. A strong N / S magnetic pole is formed at the end of the iron core assembly 52 facing the swing assembly 6. This electromagnetic field forms an optimized magnetic circuit through the magnetic sheet 4 on the device housing 1 and acts efficiently on the magnet assembly 61 on the swing assembly 6. When the magnetic pole of one side core assembly 52 attracts or repels the magnetic pole of the adjacent magnet group (611 or 612), a rotational torque will be generated on the drive shaft 62. Since the drive shaft 62 itself is made of a high magnetic permeability material, the magnetic circuit efficiency is further enhanced. Circuit board 3 uses a preset program to alternately change the direction and timing of the current to coil components 51 on different sides or with different polarities at extremely high frequency. This causes the polarity of the driving magnetic field generated by the iron core component 52 to switch rapidly, thereby generating alternating traction or thrust on the magnet component 61. This force directly acts on the drive shaft 62, driving it to rotate alternately in both directions at a small angle and high frequency. The swing of the drive shaft 62 is transmitted to the brush head 2 outside the device through the output bracket 9 fixed on it, which drives the brush head 2 to swing back and forth at high speed to complete the cleaning operation. During this process, the dustproof silicone sleeve 11 deforms with the output bracket 9 and always maintains a dynamic seal to prevent dust from entering.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high speed cleaning device, characterized in that, The utility model relates to a kind of electric toothbrush, including: Device shell (1), brush head (2), circuit board (3), magnetic sheet (4), excitation coil group (5) and swing assembly (6), the swing assembly (6) is rotationally arranged in the device shell (1), swing assembly (6) is connected brush head (2), brush head (2) is located outside device shell (1), several groups of excitation coil group (5) are built-in in device shell (1), each group of excitation coil group (5) is symmetrically distributed on both sides of swing assembly (6); The swing assembly (6) includes a drive shaft (62) that passes through several groups of excitation coil group (5), the drive shaft (62) is made of high magnetic material or embedded with high magnetic material, and a magnetic steel assembly (61) is fixedly installed on the drive shaft (62) corresponding to the excitation coil group (5). The magnetic steel assembly (61) does not contact the iron core assembly (52). Each of the excitation coil group (5) includes a coil assembly (51) and an iron core assembly (52), each of which has a pair of coil assemblies (51) and iron core assemblies (52). The same pair of coil assemblies (51) and iron core assemblies (52) are symmetrically distributed on both sides of the swing assembly (6), and the iron core assembly (52) is located on the opposite side of the coil assembly (51) and the swing assembly (6).

2. A high speed cleaning device according to claim 1, wherein The magnetic steel assembly (61) includes a first magnetic steel group (611) and a second magnetic steel group (612) symmetrically distributed, and each of the first magnetic steel group (611) and the second magnetic steel group (612) is composed of two magnetic steels. The magnetic poles of the first magnetic steel group (611) and the second magnetic steel group (612) are symmetrical.

3. The high speed cleaning device of claim 1, wherein The coil assembly (51) is embeddedly installed on the side of the device shell (1), and the device shell (1) is fixedly sleeved with the magnetic sheet (4) corresponding to the coil assembly (51).

4. A high speed cleaning device according to claim 3, wherein The coil assembly (51) is connected to the circuit board (3) through a circuit, the circuit board (3) is fixedly installed on the device shell (1), and the circuit board (3) is connected to an external power supply through a circuit.

5. The high speed cleaning device of claim 1, wherein A plurality of output supports (9) are fixedly installed on the drive shaft (62), and the output supports (9) are movably penetrated through the device shell (1) and then fixedly connected to the brush head (2).

6. A high speed cleaning device according to claim 5, wherein The output support (9) is installed with a dustproof structure at the junction of the arc device shell (1), the dustproof structure includes a dustproof fixed plate (10) and a dustproof silica gel sleeve (11), the dustproof fixed plate (10) is fixed at the window of the device shell (1), the dustproof fixed plate (10) is fixedly connected to the outer edge of the dustproof silica gel sleeve (11), and the inner edge of the dustproof silica gel sleeve (11) is tightly attached to the side of the output support (9) by using its own elasticity.

7. A high speed cleaning device according to claim 5, wherein Bearing (8) is installed at both ends of the drive shaft (62), the outer ring of the bearing (8) is fixedly connected to the inner side of the device shell (1), and end covers (7) are detachably installed at both ends of the device shell (1).

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