CN208723758U - High-frequency vibration device and the electric toothbrush for using the device - Google Patents

Abstract

This application discloses a kind of high-frequency vibration device and using the electric toothbrush of the device.The high-frequency vibration device includes shell, rotor assembly and stator module, the rotor assembly and stator module are located in the shell, the stator module includes stator core, the rotor assembly includes central rotating shaft, rotor core, the pole N magnetic stripe and the pole S magnetic stripe, the stator core is set in the outside of the rotor core, the rotor core is set on the central rotating shaft by the hollow structure that middle part is arranged, the bottom end of the central rotating shaft is fixedly connected with the inner wall of the shell, and the top of the central rotating shaft reaches the outside of the shell.The technical problem that present application addresses vibration device vibration frequencies to be unable to satisfy requirement, volume is excessive, performance is poor.

Description

High-frequency vibration device and the electric toothbrush for using the device

Technical field

This application involves mechanical vibration equipment fields, in particular to a kind of high-frequency vibration device and use the device Electric toothbrush.

Background technique

In the prior art, various vibrators have been commonly applied to multiple fields, generally use biography inside daily small household appliances The eccentric wheel structure of system obtains vibration power using the centrifugal force that axis and eccentric block high speed rotation generate, and revolving speed is limited, it is some such as Electric toothbrush etc. needs to be unable to satisfy demand in the product of high-frequency vibration.In addition, more existing high-frequency vibration device, overall volume is big, Mechanism is complicated, and assembling and recycling are difficult, and under the control of different frequency, noise is big, performance is unstable, inside the bearing that uses Quality discrepancy is a big principal element greatly, such as since the size deviation of bearing fit oil clearance is big, to the rolling contact fatigue longevity of bearing The performances such as life, temperature rise, noise, vibration have a significant impact.And early period static test be difficult to detect in it single components Portion's nuance and bad, can only be much that could finally assess its performance by being assembled into corresponding finished product, if it find that this is not Replacement bearing can be very inconvenient after good, and time-consuming and replacement will lead to some damage parts, waste material, increases cost.

For the problem that vibration device vibration frequency is unable to satisfy requirement, volume is excessive, performance is poor in the related technology, mesh It is preceding not yet to put forward effective solutions.

Utility model content

The main purpose of the application is to provide a kind of high-frequency vibration device and the electric toothbrush using the device, to solve The problem that vibration device vibration frequency is unable to satisfy requirement, volume is excessive, performance is poor.

To achieve the goals above, according to the one aspect of the application, a kind of high-frequency vibration device is provided.

According to the high-frequency vibration device of the application, comprising: shell, rotor assembly and stator module, the rotor assembly and Stator module is located in the shell, be provided between the rotor assembly and the stator module can hot-wire coil, it is described fixed Sub-component includes stator core, and the rotor assembly includes central rotating shaft, rotor core, the pole N magnetic stripe and the pole S magnetic stripe, described fixed Sub- iron core is set in the outside of the rotor core, and the rotor core is set in described by the hollow structure that middle part is arranged In heart shaft, the bottom end of the central rotating shaft is fixedly connected with the inner wall of the shell, and the top of the central rotating shaft reaches The outside of the shell.

Further, the high-frequency vibration device further includes reseting shrapnel, and the bottom of the central rotating shaft offers " u "-shaped Slot, the reseting shrapnel are located in the hollow structure of the stator core, are embedded at the top of the reseting shrapnel in the " u "-shaped In slot.

Further, it is provided with limit plane on the lower part outer wall of the central rotating shaft, the inner wall of the rotor core is set It is equipped with the boss matched with the limit plane, the boss offsets with the limit plane.

Further, the stator module includes stator core, upper insulating support, lower insulation support and coil, it is described on Insulating support is set in the top of the stator core, and the lower insulation support is set in the bottom of the stator core, described Wire casing is equipped between upper insulating support and the lower insulation support, the coil is wound around in the wire casing, and the two of the coil A terminal is drawn from the lower part of the stator module.

Further, the extending direction in the opposed inner walls of the stator core along the stator core is respectively arranged with "T"-shaped stator tooth, the top of the stator tooth are connect with the upper insulating support, the bottom of the stator tooth and the lower insulation Bracket connection, the coil are reversely wound around on two stator tooths.

Further, multiple magnetic stripe locating slots, the pole N magnetic stripe and the S are provided on the outer wall of the rotor core Pole magnetic stripe is respectively embedded into the magnetic stripe locating slot.

Further, the shell is that tubular structure, the rotor assembly and the stator module and the shell are coaxial Setting.

Further, upper end cover is provided at the top of the shell, the bottom of the shell is provided with and lower cover, described Lower cover is internally provided with card slot, and the bottom of the reseting shrapnel is embedded in the card slot, on the outer wall of the lower cover Second screw is set, is offseted by the end of second screw and the outer wall of the reseting shrapnel and the reseting shrapnel is carried out It is fixed.

Further, the high-frequency vibration device further includes first bearing, and the upper end cover is equipped with second bearing, described The central rotating shaft is mounted on the upper end cover by first bearing and second bearing cooperation.

To achieve the goals above, according to further aspect of the application, a kind of electric toothbrush is provided.

According to the electric toothbrush of the application, comprising: toothbrush head, toothbrush handle portion and above-mentioned high-frequency vibration device, institute Toothbrush handle portion is stated to connect by the high-frequency vibration device with the toothbrush head.

In the embodiment of the present application, using in the side for being internally provided with coaxial rotor assembly and stator module of shell Formula occurs that rotor assembly relative to stator module past by electromagnetic induction and the magnet principle that identical charges repel each other, there is a natural attraction between the sexes Multiple rotation, and then the central rotating shaft low-angle vibration on rotor assembly is driven, since rotational angle is small, reach raising vibration frequency The purpose of rate, to realize high-frequency vibration, low energy consumption, the technical effect of long-life, and high-frequency vibration device assembly and Recycling is convenient, saves material, high production efficiency, so solve vibration device vibration frequency be unable to satisfy requirement, volume it is excessive, The poor technical problem of performance.

Detailed description of the invention

The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not Constitute the improper restriction to the application.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the utility model high-frequency vibration device；

Fig. 2 is the decomposition state schematic diagram of the utility model high-frequency vibration device；

Fig. 3 is rotor assembly and stator module decomposition state schematic diagram in the utility model high-frequency vibration device；

Fig. 4 is the elevational sectional view of the utility model high-frequency vibration device；

Fig. 5 is the side cross-sectional, view of the utility model high-frequency vibration device；

Fig. 6 is structural schematic diagram of the utility model high-frequency vibration device in unpowered state；

Fig. 7 is first structure diagram of the utility model high-frequency vibration device in energized state；

Fig. 8 is second structural schematic diagram of the utility model high-frequency vibration device in energized state.

Specific embodiment

In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection It encloses.

It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.

In this application, term " on ", "lower", "top", "bottom", "inner", "outside", " in ", "vertical", the instruction such as "horizontal" Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings.These terms are primarily to better describe this Utility model and embodiment, are not intended to limit indicated device, element or component must have particular orientation, or It is constructed and is operated with particular orientation.

Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability For the those of ordinary skill of domain, the concrete meaning of these terms in the present invention can be understood as the case may be.

In addition, term " installation ", " setting ", " being equipped with ", " connection ", " connected ", " socket " shall be understood in a broad sense.For example, It may be a fixed connection, be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be direct phase It even, or indirectly connected through an intermediary, or is two connections internal between device, element or component. For those of ordinary skills, can understand as the case may be above-mentioned term in the present invention specifically contain Justice.

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figure 1, the high-frequency device includes shell 11, rotor assembly 41 this application involves a kind of high-frequency vibration device With stator module 42, rotor assembly 41 and stator module 42 are located in shell 11, are set between rotor assembly 41 and stator module 42 Be equipped with can hot-wire coil 10, coil 10 is dielectrically separated between rotor assembly 41 and stator module 42 respectively, rotor assembly 41 Axial line is overlapped with the axial line of shell 11, rotor assembly 41 can opposite shell 11 rotated along its axial line, and rotor assembly 41 are located exactly at the center of shell 11.Stator module 42 includes stator core 7, and rotor assembly 41 includes central rotating shaft 1, turns 4, two pole N magnetic stripes 5 of sub- iron core and two pole S magnetic stripes 6, stator core 7 are set in the outside of rotor core 4, and rotor core 4 is logical It crosses the hollow structure 24 that middle part is arranged to be set on central rotating shaft 1, rotor core 4 and central rotating shaft 1 are coaxially disposed, central rotating shaft 1 bottom end is fixedly connected with the inner wall of shell 11, and the top of central rotating shaft 1 reaches the outside of shell 11, central rotating shaft 1 with turn Sub- iron core 4 can rotate synchronously as a whole along the axial line of central rotating shaft 1.Using coaxial in being internally provided with for shell 11 Rotor assembly 41 and the mode of stator module 42 made by electromagnetic induction and the magnet principle that identical charges repel each other, there is a natural attraction between the sexes Relative to stator module 42 reciprocating rotation occurs for rotor assembly 41, and then drives 1 low-angle of central rotating shaft on rotor assembly 41 Vibration has achieved the purpose that improve vibration frequency, to realize high-frequency vibration, low energy consumption, long-life since rotational angle is small Technical effect, and high-frequency vibration device assembly and recycling are convenient, save material, high production efficiency.

In some embodiments of the utility model, stator core 7 is that several iron plates rivet the cyclic structure being superimposed, The axial line of stator core 7 is overlapped with the axial line of shell 11.

In some embodiments of the utility model, central rotating shaft 1 can be used but be not limited to stainless steel material.

In some embodiments of the utility model, the pole N magnetic stripe 5 and the pole S magnetic stripe 6 can be used but be not limited to neodymium iron boron material.

As shown in Fig. 2 to 5, high-frequency vibration device further includes reseting shrapnel 3, and reseting shrapnel 3 is that stator core 7 is arranged in With the strip structure inside hollow structure 24, the bottom of central rotating shaft 1 offers "u"-shaped groove 22, and the top of reseting shrapnel 3 is embedding It is located in "u"-shaped groove 22, the bottom of reseting shrapnel 3 is fixedly connected with the inner wall of shell 11, and central rotating shaft 1 is made in the push-and-pull of magnetic force It is twisted with lower rotated along axial reciprocating and is deformed and automatically reset.When central rotating shaft 1 rotates forward, reseting shrapnel 3 is in Heart shaft 1 just transfers generation torsional deflection, and after the switching of power supply direction, central rotating shaft 1 inverts, due to reseting shrapnel 3 Restoring deformation, then central rotating shaft 1 restores deformation with reseting shrapnel 3 and switches to rotate backward rapidly, and response speed is more accelerated, Vibration frequency can be improved.The setting of reseting shrapnel 3 also plays positioning action to central rotating shaft 1, it is ensured that the axle center of central rotating shaft 1 is not It can shift, and then improve the stability and reliability of central rotating shaft 1.

In some embodiments of the utility model, reseting shrapnel 3 can be but be not limited to pancake strip structure.

As shown in Fig. 2, the extending direction on the lower part outer wall of central rotating shaft 1 along central rotating shaft 1 is provided with limit plane 21, The inner wall of rotor core 4 is provided with the boss matched with limit plane 21, and central rotating shaft 1 passes through the hollow knot of rotor core 4 When structure 24, boss offsets with limit plane 21, can play positioning and orientation to central rotating shaft 1 and rotor core 4, improve Concentricity between central rotating shaft 1 and rotor core 4, furthermore it is possible to guarantee central rotating shaft 1, rotor core 4 and reseting shrapnel 3 The connection that can more consolidate between three improves the stability of central rotating shaft 1, central rotating shaft 1 is avoided to go out in radial force The case where now loosening.

As shown in Fig. 2 to 5, stator module 42 includes stator core 7, upper insulating support 8, lower insulation support 9 and coil 10, The quantity of upper insulating support 8, lower insulation support 9 and coil 10 be it is multiple, upper insulating support 8 is set in the top of stator core 7, Lower insulation support 9 is set in the bottom of stator core 7, and the opposite sides between upper insulating support 8 and lower insulation support 9 is set respectively There is wire casing 25, coil 10 is reversely wound around in two wire casings 25, and two terminals of coil 10 are drawn from the lower part of stator module 42, Reach fixed to coil 10 by upper insulating support 8, lower insulation support 9 and wire casing 25 and to coil 10 and stator core 7 The purpose being dielectrically separated from.

As shown in Fig. 4 to 8, it is provided in the opposed inner walls of stator core 7 to the "T"-shaped fixed of 7 inner bulge of stator core Sub- tooth, stator tooth are arranged along the extending direction of stator core 7, and the top of stator tooth is connect with upper insulating support 8, the bottom of stator tooth Portion is connect with lower insulation support 9, the reversed winding of coil 10 on two stator tooths, when coil 10 is powered, is wound around two and is determined Coil 10 on sub- tooth generates the consistent magnetic field in direction, and the output performance of high-frequency vibration device can be improved.In addition, stator tooth is set The magnetic field concentration that can be used for generating coil 10 is set, and then enhances the magnetic force in magnetic field.

In some embodiments of the utility model, stator core be can be, but not limited to using multi-disc silicon steel sheet along central rotating shaft The rectangular successively riveting superposition of 1 extension is fixed together, and can not only play the role of fixation, and being capable of magnetic conduction.

As shown in Fig. 2 to 5, along the extending direction setting of rotor core 4, there are four magnetic stripes to position on the outer wall of rotor core 4 The shapes and sizes of slot 23, each magnetic stripe locating slot 23 are matched with the pole N magnetic stripe 5 and the pole S magnetic stripe 6, the pole N magnetic stripe 5 and the pole S magnetic stripe 6 It is respectively embedded into corresponding magnetic stripe locating slot 23, poly- magnetic is played the role of in the setting of rotor core 4, increases the magnetic of rotor assembly 41 Property, and then improve the output performance of central rotating shaft 1.

As shown in Fig. 1 to 5, tubulose that shell 11 is the extending direction setting along central rotating shaft 1 and that both ends are open respectively Structure, shell 11 are arranged in shell 11 using metal material, rotor assembly 41 and stator module 42 with overall structure.Upper end cover 12 are arranged in the top of shell 11, and the first screw hole 32 is offered on upper end cover 12, is offered on shell 11 and the first screw hole Second screw hole 26 of 32 cooperations, the first screw 13 pass through the first screw hole 32 and the second screw hole 26 to 12 He of upper end cover Shell 11 is fixed；The bottom of shell 11 is arranged in lower cover 14, and catching groove 28 is offered on lower cover 14, is arranged on shell 11 There is the back-off 27 cooperated with catching groove 28, back-off 27 with catching groove 28 is mutually clamped that lower cover 14 and shell 11 is fixed.

In some embodiments of the utility model, the first screw 13 can be used but be not limited to tack self-tapping screw.

As shown in Fig. 1 to 5, high-frequency vibration device further includes first bearing 2, and upper end cover 12 is equipped with second bearing 31, the Central rotating shaft 1 is mounted on upper end cover 12 by one bearing 2 with the cooperation of second bearing 31, and is positioned to central rotating shaft 1, is avoided It shifts in vibration processes summary center shaft 1.

In some embodiments of the utility model, stator core 7 and shell 11 are coaxially disposed.

In some embodiments of the utility model, opened up on lower cover 14 there are two fairlead 30, two of coil 10 hold Son correspondence is passed through from fairlead 30, and reaches the outside of lower cover 14.

As shown in Fig. 2 to 5, lower cover 14 is internally provided with card slot, and the bottom of reseting shrapnel 3 is embedded in card slot, lower end Relative position on the outer wall of lid 14 offers third screw hole 29, and the second screw 15 is provided in third screw hole 29, the The end of two-screw 15 passes through third screw hole 29 and offsets with the outer wall of reseting shrapnel 3, plays the fixation to rotor assembly 41 Effect.

In some embodiments of the utility model, the second screw 15 can be used but be not limited to tack self-tapping screw.

In some embodiments of the utility model, shell 11 can be used but be not limited to aluminium material.

In some embodiments of the utility model, upper end cover 12 and lower cover 14 can be used but be not limited to plastic material.

The working principle of the device are as follows: as shown in fig. 6, when 10 no power of coil, since the elastic force of reseting shrapnel 3 limits System, between the "T"-shaped stator tooth alignment pole the N magnetic stripe 5 and the pole S magnetic stripe 6 of stator core 7, the pole N magnetic stripe 5 and the pole S magnetic stripe 6 are in quiet Only state；As shown in Figure 7, Figure 8, when accessing positive and negative square wave power to coil 10,10 on-off of coil and generate magnetic field, magnetic field produce Raw magnetism is strengthened by the "T"-shaped stator tooth of stator core 7, due to two coils 10 around on the contrary, so that The magnetism at 7 both ends of stator core is on the contrary, the direction for generating magnetic field is identical, and therefore, one end of stator core 7 forms the pole N, the other end The pole S is formed, due to the magnet principle that identical charges repel each other, there is a natural attraction between the sexes, drive rotor component 41 is axially rotated；When the reversed side of input Rotor assembly 41 rotates backward when wave power supply.Due to the position-limiting action of reseting shrapnel 3, central rotating shaft 1 is made to achieve the effect that vibration.

This application involves a kind of electric toothbrush, which includes toothbrush head, toothbrush handle portion and above-mentioned high frequency Vibration device, high-frequency vibration device are arranged in the inside in toothbrush handle portion, and the top of high-frequency vibration device is from toothbrush handle portion Top is stretched out and is connect with the bottom of the toothbrush head, drives toothbrush head to carry out high-frequency vibration by high-frequency vibration device, Consequently facilitating user reaches good toothbrushing effect.

It can be seen from the above description that the present invention realizes following technical effect:

1, using shell 11 be internally provided with coaxial rotor assembly 41 and stator module 42 by the way of, pass through electromagnetism Induction and the magnet principle that identical charges repel each other, there is a natural attraction between the sexes make rotor assembly 41 that reciprocating rotation occur relative to stator module 42, And then 1 low-angle of the central rotating shaft vibration on rotor assembly 41 is driven to reach since rotational angle is small and improved vibration frequency Purpose, to realize high-frequency vibration, low energy consumption, the technical effect of long-life, and high-frequency vibration device assembly and recycling Convenient, saving material, high production efficiency；

2, when the high-frequency vibration device of the application occur noise it is excessive when, can be by by the first screw 13 and the second screw 15 It takes out, upper end cover 12 and lower cover 14 can be dismantled, taking-up rotor assembly 41 is facilitated to be replaced wherein part, without It can be as existing most of locked mutually by shell 22, upper end cover 12 and lower cover 14 by back-off structure, zero inside recycling In the case where component, it is likely that cause the damage of other parts in the process of disassembly；

3, since the high-frequency vibration device of the utility model has above-mentioned technique effect, according to the utility model reality The electric toothbrush for applying example also has corresponding technical effect.Moreover, size is more compact, use is more reliable and more stable.

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of high-frequency vibration device characterized by comprising shell (11), rotor assembly (41) and stator module (42), institute It states rotor assembly (41) and stator module (42) is located in the shell (11), the rotor assembly (41) and the stator module (42) be provided between can hot-wire coil (10), the stator module (42) includes stator core (7), the rotor assembly (41) Including central rotating shaft (1), rotor core (4), the pole N magnetic stripe (5) and the pole S magnetic stripe (6), the stator core (7) is set in described The outside of rotor core (4), the hollow structure (24) that the rotor core (4) is arranged by middle part are set in the central rotating shaft (1) on, the bottom end of the central rotating shaft (1) is fixedly connected with the inner wall of the shell (11), the top of the central rotating shaft (1) Reach the outside of the shell (11).

2. high-frequency vibration device according to claim 1, which is characterized in that the high-frequency vibration device further includes resetting bullet The bottom of piece (3), the central rotating shaft (1) offers "u"-shaped groove (22), and the reseting shrapnel (3) is located at the stator core (7) it in hollow structure (24), is embedded at the top of the reseting shrapnel (3) in the "u"-shaped groove (22).

3. high-frequency vibration device according to claim 1, which is characterized in that on the lower part outer wall of the central rotating shaft (1) It is provided with limit plane (21), the inner wall of the rotor core (4) is provided with the boss matched with limit plane (21), The boss offsets with the limit plane (21).

4. high-frequency vibration device according to claim 1, which is characterized in that the stator module (42) includes stator core (7), upper insulating support (8), lower insulation support (9) and coil (10), the upper insulating support (8) are set in the stator core (7) top, the lower insulation support (9) are set in the bottom of the stator core (7), the upper insulating support (8) and institute It states and is equipped with wire casing (25) between lower insulation support (9), the coil (10) is wound around in the wire casing (25), the coil (10) Two terminals from the lower part of the stator module (42) draw.

5. high-frequency vibration device according to claim 4, which is characterized in that in the opposed inner walls of the stator core (7) "T"-shaped stator tooth, the top of the stator tooth and the upper insulation are respectively arranged with along the extending direction of the stator core (7) Bracket (8) connection, the bottom of the stator tooth are connect with the lower insulation support (9), and the coil (10) is reversely wound around two On a stator tooth.

6. high-frequency vibration device according to claim 1, which is characterized in that be arranged on the outer wall of the rotor core (4) There are multiple magnetic stripe locating slots (23), the pole N magnetic stripe (5) and the pole S magnetic stripe (6) are respectively embedded into the magnetic stripe locating slot (23) It is interior.

7. high-frequency vibration device according to claim 1, which is characterized in that the shell (11) is tubular structure, described Rotor assembly (41) and the stator module (42) and the shell (11) are coaxially disposed.

8. high-frequency vibration device according to claim 2, which is characterized in that be provided with upper end at the top of the shell (11) It covers (12), the bottom of the shell (11), which is provided with, is internally provided with card slot, institute with lower cover (14), the lower cover (14) The bottom for stating reseting shrapnel (3) is embedded in the card slot, and the second screw (15) are arranged on the outer wall of the lower cover (14), is led to The outer wall of the end and the reseting shrapnel (3) of crossing second screw (15), which offsets, is fixed the reseting shrapnel (3).

9. high-frequency vibration device according to claim 8, which is characterized in that the high-frequency vibration device further includes first axle It holds (2), the upper end cover (12) is equipped with second bearing (31), and the first bearing (2) and the second bearing (31) cooperate The central rotating shaft (1) is mounted on the upper end cover (12).

10. a kind of electric toothbrush, which is characterized in that including any one in toothbrush head, toothbrush handle portion and claim 1 to 9 High-frequency vibration device described in, the toothbrush handle portion are connect by the high-frequency vibration device with the toothbrush head.