Electric toothbrush

Abstract

The invention provides an electric toothbrush. The electric toothbrush comprises a brush handle, a brush head with bristles, a battery, a driving circuit and a vibration module, the battery and the driving circuit are assembled in the brush handle, the vibration module is assembled on the brush head and comprises a plurality of miniature vibration sources, and the vibration end of each miniature vibration source is matched with a bundle of bristles so as to drive the bristles to swing; the brush head is assembled on the brush handle, and the vibration module is electrically connected with the drive circuit. The vibration module is assembled on the brush head, bristles of the brush head are directly driven to swing, power loss is small, and energy consumption is low; the vibration module comprises a plurality of micro vibration sources, the vibration end of each micro vibration source is matched with a bundle of bristles so as to control the corresponding bristles to swing, more tooth brushing modes can be provided through combination, a user can obtain better tooth brushing experience, and the market competitiveness of the product is improved.

Description

Technical Field

[0001] The invention relates to the field of toothbrushes, and in particular to an electric toothbrush. Background Art

[0002] As we all know, toothbrush is a common daily necessity, including manual toothbrush and electric toothbrush. With the advancement of technology, electric toothbrush is becoming more and more popular. Electric toothbrush uses high-speed motor to make the brush head rotate and vibrate to achieve the effect of cleaning teeth.

[0003] The power source of traditional electric toothbrushes is in the brush handle, which drives the eccentric rotor of the brush head to rotate through the transmission shaft, causing the fixed bristles to swing vertically back and forth. The vibration of this type of electric toothbrush comes from the brush handle, and the power transmission is not direct enough, resulting in a large power loss. Summary of the invention

[0004] Therefore, the present invention provides an electric toothbrush to solve the above problems.

[0005] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0006] An electric toothbrush comprises a brush handle, a brush head with bristles, a battery, a driving circuit and a vibration module; the battery and the driving circuit are mounted in the brush handle, the vibration module is mounted on the brush head, the vibration module comprises a plurality of micro vibration sources, and the vibration end of each micro vibration source cooperates with a bundle of bristles to drive the bristles to oscillate; the brush head is mounted on the brush handle, and the vibration module is electrically connected to the driving circuit.

[0007] Furthermore, the vibration module also includes a mounting base, and a plurality of micro vibration sources are assembled on the mounting base.

[0008] Furthermore, the micro vibration source is a micro linear motor or a suspended magnetic motor; the vibration module also includes an electromagnetic coil, the driving circuit is connected to the electromagnetic coil, and the electromagnetic coil is assembled on the back of the mounting seat and corresponds to the micro vibration source to drive the micro vibration source.

[0009] Furthermore, an elastic reset member is provided on an opposite side of the mounting seat.

[0010] Furthermore, the elastic reset member is a U-shaped spring piece; one of the elastic arms of the U-shaped spring piece is fixedly arranged, and the other elastic arm corresponds to the outer side of the mounting seat.

[0011] Furthermore, the head of the brush handle is provided with an installation cavity, the installation cavity has an opening facing forward, and the brush head is assembled in the installation cavity through the opening of the installation cavity.

[0012] Furthermore, a cold light lamp, a camera or a detector is provided on the back of the head of the brush handle away from the opening of the installation cavity.

[0013] The technical solution provided by the present invention has the following beneficial effects:

[0014] The vibration module is installed on the brush head to directly drive the bristles of the brush head to swing, with small power loss and low energy consumption; and the vibration module includes multiple micro-vibration sources, and the vibration end of each micro-vibration source is equipped with a bundle of bristles to control the corresponding bristle swing respectively. Through the combination, more brushing modes can be provided, so that users can get a better brushing experience and improve the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a three-dimensional schematic diagram of an electric toothbrush in an embodiment;

[0016] Figure 2 The figure is a three-dimensional schematic diagram of the electric toothbrush in the embodiment at another angle;

[0017] Figure 3 Shown is a partial structural exploded schematic diagram of an electric toothbrush in an embodiment;

[0018] Figure 4 Shown is a schematic diagram of a partial structural decomposition of the electric toothbrush in another embodiment;

[0019] Figure 5 The figure shows the cooperation diagram of the micro vibration source and the bristles in the embodiment;

[0020] Figure 6 The figure shows the cooperation diagram of the mounting seat and the elastic reset member in the embodiment. DETAILED DESCRIPTION

[0021] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0023] Reference Figures 1 to 6As shown, an electric toothbrush provided in this embodiment includes a brush handle 10, a brush head 20 with bristles 21, a battery, a driving circuit and a vibration module 30; the battery and the driving circuit are installed in the brush handle 10. The vibration module 30 is installed on the brush head 20, and the vibration module 30 includes a plurality of micro vibration sources 31, and the vibration end of each micro vibration source 31 is matched with a bundle of bristles 21 to drive the bristles 21 to swing; the brush head 20 is installed on the brush handle 10, and the vibration module 30 is electrically connected to the driving circuit. The battery is used to power the driving circuit and the vibration module 30.

[0024] The present application installs the vibration module 30 on the brush head 20 to directly drive the bristles 21 of the brush head 20 to swing, with small power loss and low energy consumption; and the vibration module 30 includes multiple micro vibration sources 31, and the vibration end of each micro vibration source 31 is matched with a bundle of bristles 21 to control the swing of the corresponding bristles 21 respectively. Through the combination, more brushing modes can be provided, so that users can get a better brushing experience and improve the market competitiveness of the product.

[0025] Specifically, in this embodiment, the vibration module 30 is installed in the middle of the brush head 20, and the multiple micro vibration sources 31 of the vibration module 30 drive the bristles 21 in the middle of the brush head 20 to vibrate. Of course, in other embodiments, all the bristles 21 of the brush head 20 can be driven by the micro vibration sources 31 of the vibration module 30.

[0026] Specifically, in this embodiment, the vibration module 30 also includes a mounting base 32, and multiple micro vibration sources 31 are assembled on the mounting base 32. In this way, the overall assembly of multiple micro vibration sources 31 is achieved to form an integrated setting, so that the vibration module 30 forms a whole, which is convenient for unified assembly.

[0027] The micro vibration source 31 is a micro linear motor or a suspended magnetic motor, and in this embodiment, it is a micro linear motor; the vibration module 30 also includes an electromagnetic coil 34, the drive circuit is connected to the electromagnetic coil 34, and the electromagnetic coil 34 is mounted on the back of the mounting seat 32 (i.e., away from the micro vibration source 31) and corresponds to the micro vibration source to drive the micro vibration source. In this way, the high-frequency reciprocating electrical signal output by the drive circuit is used to make the magnetic field direction of the electromagnetic coil 34 change interactively, and form an interactive attraction and repulsion with the magnetic field direction of the micro linear motor, thereby driving the bristles to form a high-frequency reciprocating motion.

[0028] At the same time, an elastic reset member 33 is provided on one opposite side (such as the left and right sides) of the mounting seat 32, which can make the vibration module 30 and the bristles 21 thereon swing and rebound for better reset. Preferably, in this embodiment, the elastic reset member 33 is a U-shaped spring; one of the elastic arms of the U-shaped spring 33 is fixedly arranged, and the other elastic arm corresponds to the outer side of the mounting seat 32. By setting the elastic reset member 33 on both sides of the vibration module 30, energy waste can be further reduced, and a resonance effect with the vibration module 30 can be formed at a certain oscillation frequency, which can not only shorten the start and stop time of the micro linear motor and improve its vibration intensity, but also reduce the noise and delicate vibration of the micro linear motor movement, which are incomparable to the rotor motor. At the same time, by adjusting the parameters of the elastic reset member 33, the vibration intensity or frequency of the bristles can be adjusted, and a variety of vibration waveforms can be pre-stored through the chip of the driving circuit, and the vibration accompanied by music can be set. Developers can adapt the corresponding vibration waveform according to different usage scenarios, bringing rich tactile feedback to users.

[0029] The head of the brush handle 10 is provided with an installation cavity 11, and the installation cavity 11 has an opening facing forward, and the brush head 20 is assembled in the installation cavity 11 through the opening of the installation cavity 11, so as to realize the assembly of the brush handle 10 and the brush head 20. Specifically, a first contact connected to the drive circuit is provided at the bottom of the installation cavity 11, and a second contact is provided on the vibration module 30. When the brush handle 10 and the brush head 20 are assembled, the first contact and the second contact are in contact to realize the electrical connection between the vibration module 30 and the drive circuit.

[0030] Furthermore, a cold light lamp 40 is provided at the back of the head of the brush handle 10 away from the opening of the installation cavity 11. The cold light lamp 40 can illuminate the teeth for teeth whitening, making full use of the head position of the brush handle 10. Specifically, the cold light lamp 40 is also electrically connected to the driving circuit and powered by a built-in battery. Of course, in other embodiments, the cold light lamp 40 can also be replaced by a camera or an infrared detector that can emit a fixed band to detect the health status of the teeth.

[0031] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An electric toothbrush, comprising a brush handle, a brush head with bristles, a battery, a drive circuit and a vibration module; characterized in that: The battery and the driving circuit are installed in the brush handle, the vibration module is installed on the brush head, the vibration module includes a plurality of micro vibration sources, and the vibration end of each micro vibration source is matched with a bundle of bristles to drive the bristles to swing; the brush head is installed on the brush handle, and the vibration module is electrically connected to the driving circuit.

2. The electric toothbrush according to claim 1, characterized in that: The vibration module also includes a mounting base, and a plurality of micro vibration sources are assembled on the mounting base.

3. The electric toothbrush according to claim 2, characterized in that: The micro vibration source is a micro linear motor or a suspended magnetic motor; the vibration module also includes an electromagnetic coil, the driving circuit is connected to the electromagnetic coil, and the electromagnetic coil is assembled on the back of the mounting seat and corresponds to the micro vibration source to drive the micro vibration source.

4. The electric toothbrush according to claim 3, characterized in that: An elastic reset member is arranged on an opposite side of the mounting seat.

5. The electric toothbrush according to claim 4, characterized in that: The elastic reset member is a U-shaped spring piece; one elastic arm of the U-shaped spring piece is fixedly arranged, and the other elastic arm corresponds to the outer side of the mounting seat.

6. The electric toothbrush according to claim 1, characterized in that: The head of the brush handle is provided with an installation cavity, the installation cavity has an opening facing forward, and the brush head is assembled in the installation cavity through the opening of the installation cavity.

7. The electric toothbrush according to claim 6, characterized in that: The head of the brush handle is provided with a cold light lamp, a camera or a detector at the back of the opening away from the installation cavity.

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