CN210644228U

CN210644228U - Electric toothbrush

Info

Publication number: CN210644228U
Application number: CN201920834467.4U
Authority: CN
Inventors: 邹和
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-02
Anticipated expiration: 2029-06-04

Abstract

The utility model relates to an electric toothbrush, including brush head and handle, the handle has the inner chamber, still including setting up drive arrangement and the power supply unit in the inner chamber, power supply unit is connected with drive arrangement, and drive arrangement is connected with the brush head to the first straight reciprocating motion of handle axial is followed to the drive brush. The driving device comprises a first magnetic assembly and a second magnetic assembly, the first magnetic assembly comprises a rotor part and a stator magnetic conduction yoke, the stator magnetic conduction yoke is annular, the stator magnetic conduction yoke is coaxially sleeved on the outer side of the rotor part, the second magnetic assembly is located between the rotor part and the stator magnetic conduction yoke, a gap is reserved between the rotor part and the second magnetic assembly, the power supply device is connected with the rotor part, and the rotor part is connected with the brush head. The electric toothbrush of the utility model solves the problem of frequency limitation of manual tooth brushing reciprocation, and improves the speed and effect of tooth cleaning.

Description

Electric toothbrush

Technical Field

The utility model relates to a life electrical apparatus technical field especially relates to an electric toothbrush.

Background

At present, the electric toothbrush is characterized in that a motor core rotates rapidly or vibrates in sound wave, so that a brush head generates high-frequency vibration to decompose toothpaste into fine foam to clean teeth. However, because the brush head can only rotate or vibrate slightly, the manual reciprocating motion is still needed to clean the teeth during the use process, and the tooth brushing speed is limited by the manual frequency.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The technical problem to be solved by the utility model is to clean teeth by manual reciprocating motion, and the speed of brushing teeth and the problem of poor cleaning effect.

(II) technical scheme

In order to solve the technical problem, the utility model provides an electric toothbrush, including brush head and handle, the handle has the inner chamber, still including set up in drive arrangement and power supply unit in the inner chamber, power supply unit with drive arrangement connects, drive arrangement with brush head connection, with the drive brush head edge handle axial straight reciprocating motion.

The driving device comprises a first magnetic assembly and a second magnetic assembly, the first magnetic assembly comprises a rotor part and a stator magnetic yoke, the stator magnetic yoke is annular, the stator magnetic yoke is coaxially sleeved on the outer side of the rotor part, the second magnetic assembly is located between the rotor part and the stator magnetic yoke, a gap is reserved between the rotor part and the second magnetic assembly, the power supply device is connected with the rotor part, and the rotor part is connected with the brush head.

The stator magnetic yoke and the second magnetic assembly are embedded into the inner wall of the handle.

The rotor component comprises a rotor magnetic yoke and a coil, one or more circumferentially surrounding annular grooves are formed in the outer circumferential surface of the rotor magnetic yoke, each groove is opposite to one stator magnetic yoke, the width of a notch of each groove is smaller than the length of the corresponding stator magnetic yoke, the coil is wound around the axis of the rotor magnetic yoke in each groove, and the coil is connected with the power supply device.

The rotor magnetic yoke is provided with a circumferentially surrounding extension part, and the extension part is located at the notch of the groove and extends towards the inner side of the groove.

The rotor magnetic conduction yoke comprises a first yoke part and a second yoke part, the first yoke part is provided with a winding shaft, and the second yoke part is provided with an insertion hole used for being inserted with the winding shaft.

Wherein, the second magnetic component is an annular permanent magnet.

The elastic component is arranged on the handle, one end of the elastic component is connected with the inner wall of the handle, and the other end of the elastic component is connected with the rotor component.

The brush head is characterized by further comprising a connecting rod, one end of the connecting rod is connected with the rotor part, and the other end of the connecting rod penetrates out of the handle and is connected with the brush head.

The power supply device comprises a power supply device, a controller and a power supply device, wherein the power supply device further comprises the controller, and the controller is connected with the power supply device.

(III) advantageous effects

The above technical scheme of the utility model has following advantage: the utility model discloses an electric toothbrush installs drive arrangement in the handle inner chamber, and power supply unit is the drive arrangement power supply, and drive arrangement connects the brush head to the drive brush head is straight reciprocating motion, and the action of other brush head rotations or vibrations of cooperation carries out the tooth cleanness, has reduced the work that artifical manual reciprocating motion brushed teeth, has increased the automaticity of brushing teeth, uses manpower sparingly, has solved the reciprocal frequency restriction of manual brushing teeth, improves the clear speed of tooth and effect.

In addition to the technical problems addressed by the present invention, the technical features of the constituent technical solutions, and the advantages brought by the technical features of these technical solutions, which are described above, other technical features of the present invention and the advantages brought by these technical features will be further explained with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of an electric toothbrush according to an embodiment of the present invention;

FIG. 2 is a schematic view of an electric toothbrush according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a three-power toothbrush according to an embodiment of the present invention.

In the figure: 1: a brush head; 2: a handle; 3: a drive device; 4: a power supply device; 5: an elastic component; 6: a connecting rod; 7: a controller; 21: an inner cavity; 31: a second magnetic component; 32: a mover member; 33: a stator magnetic yoke; 321: a rotor magnetic yoke iron; 322: a coil; 323: a groove; 321 a: a first yoke part; 321b, and 2: a second yoke portion; 321c, and (2): a spool; 321d, 321: and (7) inserting holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, unless otherwise specified, "plurality", and "plural" mean two or more, and "several", and "several groups" mean one or more.

Example one

As shown in fig. 1, the embodiment of the present invention provides an electric toothbrush, which comprises a brush head 1 and a handle 2, wherein the handle 2 has an inner cavity 21, and further comprises a driving device 3 and a power supply device 4 arranged in the inner cavity 21, the power supply device 4 is connected with the driving device 3, and the driving device 3 is connected with the brush head 1 to drive the brush head 1 to reciprocate along the axial direction of the handle 2.

The utility model discloses an electric toothbrush installs drive arrangement in the handle inner chamber, and power supply unit is the drive arrangement power supply, and drive arrangement connects the brush head to the drive brush head is straight reciprocating motion, and the action of other brush head rotations or vibrations of cooperation carries out the tooth cleanness, has reduced the work that artifical manual reciprocating motion brushed teeth, has increased the automaticity of brushing teeth, uses manpower sparingly, has solved the reciprocal frequency restriction of manual brushing teeth, improves the clear speed of tooth and effect.

The driving device 3 includes a first magnetic assembly and a second magnetic assembly 31, the first magnetic assembly includes a rotor part 32 and a stator magnetic yoke 33, the stator magnetic yoke 33 is annular, the stator magnetic yoke 33 is coaxially sleeved outside the rotor part 32, the second magnetic assembly 31 is located between the rotor part 32 and the stator magnetic yoke 33, a gap is formed between the rotor part 32 and the second magnetic assembly 31, the power supply device 4 is connected with the rotor part 32, and the rotor part 32 is connected with the brush head 1. The stator magnetic yoke of the first magnetic part and the second magnetic part are combined to form a stator, the rotor part of the first magnetic part forms a rotor, the rotor part forms a first magnetic loop with the stator magnetic yoke after being electrified, the second magnetic part forms a second magnetic loop, the first magnetic loop and the second magnetic loop can interact to generate acting force, the rotor part moves under the driving of the acting force, the voltage and the frequency for electrifying the rotor part are changed, the magnetism and the magnetic force direction of the first magnetic loop are changed, namely the magnitude and the direction of the acting force are changed, the rotor part can be linearly reciprocated, and further the brush head is driven to linearly reciprocate. A gap is formed between the rotor part and the second magnetic assembly, so that no friction drag can be ensured in the motion around the rotor part.

The stator magnetic yoke 33 and the second magnetic assembly 31 are embedded in the inner wall of the handle 2. Stator magnetic conduction yoke and second magnetic component are the cylinder, and stator magnetic conduction yoke cover is established on second magnetic component's outer wall, and stator magnetic conduction yoke and second magnetic component imbed in proper order on the inner wall of handle, when fixed stator magnetic conduction yoke and second magnetic component, save handle inner chamber space.

The rotor component 32 includes a rotor magnetic yoke 321 and a coil 322, a circumferential annular groove 323 is disposed on an outer circumferential surface of the rotor magnetic yoke 321, one groove 323 is opposite to one stator magnetic yoke 33, a width of a notch of the groove 323 is smaller than a length of the corresponding stator magnetic yoke 33, the coil 322 is wound around an axis of the rotor magnetic yoke 321 in the groove 323, and the coil 322 is connected to the power supply device 4. The rotor component is composed of two parts of a rotor magnetic yoke and an excitation coil, a coil is wound in a groove of the rotor magnetic yoke, the stator magnetic yoke and a ground magnetic assembly are both positioned above the groove, the stator magnetic yoke and the rotor magnetic yoke jointly form an enclosure for the coil, and the magnetism generated after the coil is electrified is spread outwards through the stator magnetic yoke and the rotor magnetic yoke to form a magnetic field, namely a first magnetic loop and a second magnetic loop formed by the second magnetic assembly to interact with each other, so that the voltage and the frequency of the electrification of the coil are changed, the magnetism and the magnetic force direction of the first magnetic loop are changed, namely the magnitude and the direction of acting force are changed, the rotor component can linearly reciprocate, and further the brush head is driven to linearly reciprocate. In this embodiment, the excitation coil is a cylindrical ring wound by enameled wires.

The rotor magnetic yoke 321 is provided with a circumferentially surrounding extension portion, and the extension portion is located at a notch of the groove 323 and extends towards the inner side of the groove 323. The rotor magnetic yoke is provided with an extension part at the notch of the groove, the width of the notch is reduced by the extension part, the corresponding area of the outer circumferential surface of the rotor magnetic yoke and the stator magnetic yoke is increased, and the rotor magnetic yoke and the stator magnetic yoke can form a complete magnetic loop in the linear Wangfu moving process, so that the brush head can smoothly reciprocate linearly. The side that the extension is close to the recess bottom in this embodiment is the inclined plane, makes the notch of recess be the form of gathering together, can strengthen the intensity of extension on the one hand, and on the other hand can guarantee in the limited space of recess, can hold the coil of more turns, is favorable to ensureing the magnetic field intensity that the back coil produced of circular telegram. In this embodiment, the extension portion is also a magnetic component, and may be integrated with the rotor magnetic yoke or may be separately connected.

The rotor magnetic yoke 321 includes a first yoke portion 321a and a second yoke portion 321b, the first yoke portion 321a has a winding shaft 321c, and the second yoke portion 321b has an insertion hole 321d for inserting the winding shaft 321 c. The rotor magnetic conduction yoke is composed of a first yoke part and a second yoke part, the section of the first yoke part along the axial direction is in a shape like a Chinese character 'shan', a winding shaft is arranged in the middle of the first yoke part, the second yoke part removes the winding shaft in the middle on the basis of the similar structure of the first yoke part and changes the winding shaft into an insertion hole matched with the winding shaft, after a coil is wound on the winding shaft, the second yoke part is combined with the first yoke part, the end part of the winding shaft is inserted into the insertion hole, a complete closed loop magnetic circuit can be formed while the coil is fixed, and winding and dismounting are facilitated. In the embodiment, the rotor magnetic conduction yoke is divided into a first yoke part and a second yoke part, the two yoke parts are combined to form a groove, the winding shaft is provided with a first through hole along the periphery of the winding shaft, the second yoke part is provided with a second through hole coaxially communicated with the first through hole, a T-shaped connecting piece is further arranged, a vertical rod of the T-shaped connecting piece is inserted into the first through hole and penetrates out of the second through hole to be connected with the brush head, and the cross rod abuts against the end face of the first yoke part, so that the first yoke part and the second yoke part are integrated and fixed.

Wherein the second magnetic assembly 31 is an annular permanent magnet.

In this embodiment, the electric toothbrush further includes an elastic assembly 5, one end of the elastic assembly 5 is connected to the inner wall of the handle 2, and the other end of the elastic assembly 5 is connected to the mover 32. An elastic component is arranged on the axis of the inner cavity of the handle, two ends of the moving component are supported in the handle through the elastic component in the embodiment, and the elastic component is two springs which are respectively arranged on the end surface of the first yoke part and the end surface of the second yoke part.

In this embodiment, the electric toothbrush further comprises a connecting rod 6, one end of the connecting rod 6 is connected with the rotor part 32, and the other end of the connecting rod 6 penetrates through the handle 2 to be connected with the brush head 1. The second yoke part is connected with the brush head through a connecting rod, and the end part of the T-shaped connecting piece penetrates out of a second through hole of the second yoke part and then is connected with the connecting rod, so that the connecting rod is fixed on the second yoke part.

In this embodiment, the electric toothbrush includes a controller 7, and the controller 7 is connected to the power supply device 4. Through the modulation of the controller, a direct current power supply of the power supply device can be converted into alternating current with adjustable voltage and frequency to be supplied to a coil in the rotor component, so that the rotor component forms an alternating electric field, the motion stroke and the frequency of the rotor component are adjusted, the rotor component does reciprocating motion along the axial direction of the handle, the frequency and the amplitude of the brush head motion can be adjusted, the brush head motion is consistent with the reciprocating motion of tooth brushing, and a better cleaning effect is achieved.

Example two

As shown in fig. 2, the electric toothbrush according to the second embodiment of the present invention is substantially the same as the first embodiment, except that a plurality of grooves 323 are disposed on the mover 32, each of the grooves 323 is disposed with a coil 322, a plurality of sets of stator magnetic yokes 33 and second magnetic assemblies 31 are disposed respectively while corresponding to the grooves 323, and two ends of the first yoke 321a are respectively disposed with a second yoke 321b to be fastened to the second yoke 321 b. In this embodiment, the number of the grooves is two, when the diameter of the handle needs to be reduced and the sufficient driving force of the driving device needs to be ensured, the diameter of the rotor part can be reduced, and the two grooves are arranged to wind the coils, so that the double-motor driving effect is achieved.

EXAMPLE III

As shown in fig. 3, the electric toothbrush according to the third embodiment of the present invention is substantially the same as the first embodiment, except that the elastic member 5 is a plate spring supported structure. The plate spring is arranged on the second yoke part 321b, the middle part of the plate spring is fixed with the connecting rod 6, the outer side of the plate spring is connected with the inner wall of the handle 2 through a bolt, and the bottom surface of the plate spring is fixed with the end surface of the second yoke part 321 b.

To sum up, the utility model discloses an electric toothbrush installs drive arrangement in the handle inner chamber, and power supply unit is the drive arrangement power supply, and drive arrangement connects the brush head to the drive brush head is straight reciprocating motion, and the action of other brush head rotations or vibrations of cooperation carries out the tooth cleanness, has reduced the work that artifical manual reciprocating motion brushed teeth, has increased the automaticity of brushing teeth, uses manpower sparingly, has solved the reciprocal frequency restriction of manual brushing teeth, improves the clear speed of tooth and effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An electric toothbrush comprising a head and a handle, the handle having an interior cavity, characterized by: the toothbrush further comprises a driving device and a power supply device which are arranged in the inner cavity, the power supply device is connected with the driving device, and the driving device is connected with the toothbrush head so as to drive the toothbrush head to linearly reciprocate along the axial direction of the handle; the driving device comprises a first magnetic assembly and a second magnetic assembly, the first magnetic assembly comprises a rotor part and a stator magnetic conduction yoke, the stator magnetic conduction yoke is annular, the stator magnetic conduction yoke is coaxially sleeved on the outer side of the rotor part, the second magnetic assembly is located between the rotor part and the stator magnetic conduction yoke, a gap is reserved between the rotor part and the second magnetic assembly, the power supply device is connected with the rotor part, and the rotor part is connected with the brush head.

2. The electric toothbrush of claim 1, wherein: and the stator magnetic yoke and the second magnetic assembly are embedded into the inner wall of the handle.

3. The electric toothbrush of claim 1, wherein: the rotor component comprises a rotor magnetic yoke and a coil, one or more circumferentially surrounding annular grooves are formed in the outer circumferential surface of the rotor magnetic yoke, each groove is opposite to one stator magnetic yoke, the width of a notch of each groove is smaller than the length of the corresponding stator magnetic yoke, the coil is wound around the axis of the rotor magnetic yoke in each groove, and the coil is connected with the power supply device.

4. The electric toothbrush of claim 3, wherein: the rotor magnetic yoke is provided with a circumferentially surrounding extension part, and the extension part is located at the notch of the groove and extends towards the inner side of the groove.

5. The electric toothbrush of claim 4, wherein: the rotor magnetic yoke comprises a first yoke part and a second yoke part, the first yoke part is provided with a winding shaft, and the second yoke part is provided with an inserting hole for inserting the winding shaft.

6. The electric toothbrush of claim 1, wherein: the second magnetic component is an annular permanent magnet.

7. The electric toothbrush of claim 1, wherein: the elastic component is arranged, one end of the elastic component is connected with the inner wall of the handle, and the other end of the elastic component is connected with the rotor component.

8. The electric toothbrush of claim 1, wherein: the brush head is characterized by further comprising a connecting rod, one end of the connecting rod is connected with the rotor part, and the other end of the connecting rod penetrates out of the handle and is connected with the brush head.

9. The electric toothbrush according to any one of claims 1 to 8, wherein: the power supply device further comprises a controller, and the controller is connected with the power supply device.