CN209170063U - Small-sized high-frequency vibration device - Google Patents
Small-sized high-frequency vibration device Download PDFInfo
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- CN209170063U CN209170063U CN201821669982.3U CN201821669982U CN209170063U CN 209170063 U CN209170063 U CN 209170063U CN 201821669982 U CN201821669982 U CN 201821669982U CN 209170063 U CN209170063 U CN 209170063U
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Abstract
A kind of small-sized high-frequency vibration device, it includes central axis, group of magnets, iron core, iron core stator and casing assembly, iron core is sheathed on central axis and can rotate synchronously, group of magnets is set on iron core, it is characterized in that, iron core stator is coated on outside iron core, and it is set in casing assembly, coil packet is equipped between iron core stator and iron core, coil packet is fixed on the side surface towards iron core of iron core stator.The small-sized high-frequency vibration device of the utility model uses the form of coil packet, and the coil of non-traditional coiling, thus can directly be sleeved on iron core stator in assembly, greatly simplifies coil-winding difficulty, and then be conducive to improve assembly efficiency.The small-sized high-frequency vibration device vibration frequency of the utility model is high, its structure is simple, is easily assembled, and low energy consumption, the service life is long, noise is small, figure is small and exquisite, it has strong practicality, can be widely applied to the articles such as vibration toothbrush, sound wave face washing device, massager, sex toy.
Description
[technical field]
The utility model relates to motor, in particular to a kind of structure is simple, be easily assembled, vibration frequency is high, small in size
Small-sized high-frequency vibration device.
[background technique]
It is well known that traditional vibrating motor is respectively to install one group of adjustable eccentric block at 20 axis both ends of iron core, utilize
The centrifugal force that axis and eccentric block high speed rotation generate obtains exciting force.The vibration frequency range of vibrating motor is big, only excited vibration
Power and power tie in and could reduce mechanicalness noise.Since it uses eccentric structure, amplitude is uneven, and vibration frequency is inadequate
Stablize, and is not easy to minimize.Therefore, to meet different use demands, one kind has been developed by alternating current and has generated magnetic field
And make the vibration device of the small size high frequency rotational of rotor, the art solutions applied before this such as the applicant --- motor,
Application No. is 2015100566771 for it.The motor of this structure can generate high frequency low amplitude vibrations, and vibration frequency is high, and makes an uproar
Sound is smaller, still, process and assemble low efficiency.On the other hand, for the vibrating motor being applied on the small articles such as electric toothbrush, lead to
The figure of normal motor is the smaller the better, and still, since motor is small, assembling structure just has certain difficulty.
[utility model content]
The purpose of the utility model is to solve the above problems and to provide a kind of structures simply, is easily assembled, and figure is smaller small-sized
High-frequency vibration device.
To achieve the above object, the utility model provides a kind of small-sized high-frequency vibration device comprising central axis, magnet
Group, iron core, iron core stator and casing assembly, the iron core are sheathed on the central axis and can rotate synchronously, institute
Group of magnets is stated on the iron core, which is characterized in that the iron core stator is coated on outside the iron core, and is set to
In the casing assembly, coil packet is equipped between the iron core stator and the iron core, the coil packet is fixed on institute
It states on the side surface towards iron core of iron core stator.
The iron core stator is in the tubular of both ends open, is symmetrically arranged on the inner wall of the iron core stator and prolongs along its axial direction
The positioning convex portion stretched, the positioning convex portion relative spacing, the coil packet are symmetrically sheathed in the positioning convex portion.
Insulation sleeve is equipped between the iron core stator and the coil packet, the insulation sleeve is overlapped in the iron core respectively
At the both ends of stator, the positioning groove portion that shape and the positioning convex portion match is equipped on the inner wall of the insulation sleeve, it is described
Positioning groove portion is sheathed in the positioning convex portion, and the coil jacket is set in the positioning groove portion.
The insulation sleeve includes tubular main part, in one end end convex edge with outward extension of the main part
Portion, is symmetrically arranged with positioning groove portion on the inner wall of the main part, and the positioning slot part does not include the plate portion of parallel interval, institute
The thickness that the distance between plate portion is not less than the positioning convex portion is stated, is respectively equipped on the main part between the plate portion
The opening that connects of space, when the insulation sleeve is overlapped in the end of the iron core stator, the convex edge portion is overlapped in described
On the end face of iron core stator, the main body section is pasted in the end of the iron core stator, and with the inner wall of the iron core stator
It closes, the positioning groove portion is sheathed on outside the positioning convex portion.
The coil packet includes being prefabricated into block-like first coil packet and the second coil packet, in the first coil packet and the
The center of two coil packet is equipped with the mounting hole that shape and the positioning convex portion match, the first coil packet and the second coil packet
It is symmetrically sheathed in the positioning groove portion, the positioning convex portion is located in the mounting hole, and towards the group of magnets.
The central shaft hole for installing the central axis is equipped in the center of the iron core, the central axis is set in described
It can be rotated synchronously with the iron core in arbor hole；It is equipped with what several were spaced apart from each other on the outer wall of the iron core
Magnet mounting groove, the magnet mounting groove is in a strip shape, parallel with the central shaft hole respectively, and the group of magnets is set to the magnetic
In iron mounting groove.
Stopper protrusion outstanding is symmetrically arranged on the outer wall of the iron core, the stopper protrusion is turned by the iron core
One end of son axially extends to its other end along it；There are four the magnet mounting groove is set altogether, respectively along the stopper protrusion
It is symmetric.
The casing assembly includes the shell and end cap of pairing connection, and the shell is cylindrical in shape, and covers at the iron core
The outside of stator, the shell open at one end and connect with the end cap pairing, the other end be equipped with circular bearing hole, it is described
Central axis is passed through the bearing hole by the inside of the shell and is extend out to outside shell, and bearing is arranged on the central axis,
The bearing is installed in the bearing hole.
It is connected with elastic slice in the other end opposite with bearing is equipped with of the central axis, the elastic slice is in the piece of long strip type
Shape；It is equipped with locating slot in the end cap, locating piece is equipped in the locating slot, in the locating piece towards central axis
Position is equipped with jack, and the shape of the jack and the end shape of the elastic slice match, and one end of the elastic slice is plugged in
In the jack, the other end is connect with the end of the central axis.
The end cap includes integrally formed cartridge part, abutting part and socket, and the cartridge part is cylindrical in shape, is plugged in
The inside of the shell, the abutting part limit abut the end of the shell, and the socket is located at the outside of the shell,
The inner hollow of the socket and form the locating slot, the internal run-through of the socket and the cartridge part is used for
Install the locating piece and elastic slice；
Blocking part is equipped in the inside of the end cap；The blocking part is symmetrically set in the flat with iron core stator of the end cap
On the corresponding inner surface in plate portion, the blocking part protrudes from the inner surface of the cartridge part and can be by the coil packet
End is limited in respectively between the blocking part and cartridge part；The depression in centre of the blocking part and the iron core can be limited by being formed
The restricted room of rotor deflection angle.
The favorable attributes of the utility model are, efficiently solve the above problem.The small-sized high frequency vibrating of the utility model
Dynamic device is passed through the sense of current of coil by controlling according to electromagnetic induction and magnet identical charges repel each other principle of opposite sex attraction,
To make iron core deflect and drive central axis reciprocating rotation, vibrating effect is realized.The small-sized high frequency of the utility model
Vibration device uses the form of coil packet, and the coil of non-traditional coiling, thus can directly be sleeved on iron core stator in assembly
On, coil-winding difficulty is greatly simplified, and then be conducive to improve assembly efficiency.The small-sized high-frequency vibration device of the utility model vibrates
Frequency is high, and structure is simple, is easily assembled, and low energy consumption, the service life is long, noise is small, figure is small and exquisite, with very strong practical
Property, it can be widely applied to the articles such as vibration toothbrush, sound wave face washing device, massager, sex toy.
[Detailed description of the invention]
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the overall structure decomposition diagram of the utility model.
Fig. 3 is the A-A cross-sectional view of Fig. 1.
Fig. 4 is the schematic diagram of internal structure for removing casing assembly.
Fig. 5 is the structural schematic diagram of insulation sleeve.
Fig. 6 is the B-B cross-sectional view of Fig. 1.
Fig. 7 is the schematic illustration of embodiment 1.
Fig. 8 is the schematic illustration of embodiment 1.
Fig. 9 is the schematic illustration of embodiment 2.
Figure 10 is the schematic illustration of embodiment 2.
Wherein, central axis 10, iron core 20, central shaft hole 21, magnet mounting groove 22, stopper protrusion 23, iron core stator
30, positioning convex portion 31, flat part 32, arc plate portion 33, insulation sleeve 40, main part 41, convex edge portion 42, positioning groove portion 43, plate portion
431, interconnecting piece 432, opening 44, elastic slice 50, group of magnets 60, coil packet 70, first coil packet 71, the second coil packet 72, installation
Hole 73, shell 80, bearing hole 81, end cap 90, cartridge part 91, abutting part 92, socket 93, locating slot 94, blocking part 95, limitation
Chamber 96, locating piece 100, bearing 101.
[specific embodiment]
The following example is being explained further and supplementing to the utility model, does not constitute any limit to the utility model
System.
As shown in Fig. 1~Figure 10, the small-sized high-frequency vibration device of the utility model includes central axis 10, casing assembly, iron
Core rotor 20, iron core stator 30, insulation sleeve 40, elastic slice 50, group of magnets 60, coil packet 70.
As shown in Fig. 2, the iron core 20 is made of magnetic material, in the present embodiment, by several silicon steel lamellas
It folds and is formed.The iron core 20 is axially symmetric structure, is equipped in the center of the iron core 20 and prolongs along its length
The central shaft hole 21 stretched, the symmetrical overlapping of axles of the central axis of the central shaft hole 21 and the iron core 20.The center
Axis hole 21 is through-hole.To control the deflection angle of the iron core 20, and 20 overswing of iron core is avoided, in the iron
Stopper protrusion 23 outstanding is symmetrically arranged on the outer wall of core rotor 20.The stopper protrusion 23 is in a strip shape, by iron core 20
One end axially extend to its other end along it.For convenience of the installation group of magnets 60, on the outer wall of the iron core 20
Magnet mounting groove 22 equipped with parallel interval.In the present embodiment, set on the outer wall of the iron core 20 there are four strip
Magnet mounting groove 22, distinguish parallel interval, and whole be symmetric along the stopper protrusion 23.In the present embodiment, institute
Magnet mounting groove 22 is stated to be penetrated through by one end of iron core 20 to its other end.
In the present embodiment, the group of magnets includes 60 magnet including 4 strips, shape and the magnet mounting groove
22 shape matches, and can be embedded in the magnet mounting groove 22.
As shown in Fig. 2~Fig. 6, the central axis 10 is installed in the central shaft hole 21 of the iron core 20, can be with
The iron core 20 rotates synchronously.The central axis 10 can pass through well known assembly method or assembly with the central shaft hole 21
Structure and both realize and to rotate synchronously.The length of the central axis 10 is greater than the length of the iron core 20.The central axis
10 one end is free end, and it is outer and connect with other objects to be driven to be used to extend out to iron core 20, for example, with toothbrush
Head connects and drives head toothbrushes of reciprocating vibration.
As shown in Figure 2, Figure 3, Figure 4, the iron core stator 30 is set to outside the iron core 20, and is located at the shell group
In part.The iron core stator 30 is made of magnetic material, in the present embodiment, is laminated by several silicon steel sheets and is formed.It is described
The whole tubular in both ends open of iron core stator 30, is symmetrically arranged with axially extending along its on the inner wall of the iron core stator 30
Positioning convex portion 31 is used to install the coil packet 70.The cylindrical shape of the iron core stator 30, with the iron core for facilitating it internal
The rotation of rotor 20 is advisable, and in the present embodiment, cross section is in runway shape comprising the flat part 32 of parallel interval and connection two
The arc plate portion 33 of 32 ipsilateral penumbra of flat part.The length of the flat part 32 and arc plate portion 33, preferably with the iron core
20 length is consistent.The positioning convex portion 31 is equipped in the inner surface center in arc plate portion 33.The positioning convex portion 31 can
For poly- magnetic, magnetism can be concentrated and enhance magneticaction.The positioning convex portion 31 is in long strip, along iron core stator 30
Length direction extends, and is respectively separated with the flat part 32 and parallel.In the present embodiment, the positioning convex portion 31 is put down with described
The length in plate portion 32 is consistent.
The coil packet 70 is installed for convenience of insulation, is respectively equipped with insulation sleeve 40 at the both ends of the iron core stator 30.Institute
It states insulation sleeve 40 to be installed between iron core stator 30 and coil packet 70, makes coil packet 70 is not direct to contact with iron core stator 30
And play insulating effect.
The insulation sleeve 40 includes tubular main part 41, is equipped with and extends outwardly in one end end of the main part 41
And convex edge portion 42 annular in shape, positioning groove portion 43 is symmetrically arranged on the inner wall of the main part 41.The shape of the main part 41
The shape of shape and the iron core stator 30 matches, and external dimensions is less than or equal to the inside dimension of the iron core stator 30,
So that the main part 41 can be set in the inside of iron core stator 30.Preferably, described in being set in when the main part 41
When the inside of iron core stator 30, the inner wall of the outer wall and iron core stator 30 of main part 41 fits.The convex edge portion 42 is by described
The end of main part 41 extends outwardly and is formed, and size and the face size of the iron core stator 30 match, and can overlap
In on the end face of the iron core stator 30.The positioning groove portion 43 respectively includes parallel for being sleeved on positioning convex portion 31
The plate portion 431 at interval, the distance between described plate portion 431 are not less than the thickness of the positioning convex portion 31.The plate portion 431 is by institute
The one end for stating main part 41 axially extends to its other end along it.In the present embodiment, the plate portion 431 towards convex edge portion 42
One end is linked together by interconnecting piece 432, can be more convenient to be set with the coil packet 70 and be dielectrically separated from.The plate portion
431 other end opposite with interconnecting piece 432 is then opening-like, facilitates and positioning groove portion 43 is sleeved in positioning convex portion 31.
In addition, being respectively equipped on the main part 41 and the plate for convenience of entire insulation sleeve 40 to be sleeved on iron core stator 30
The opening 44 that space between portion 431 connects.The insulation sleeve 40 is overlapped in the end of the iron core stator 30, described convex
Along the end face that portion 42 is overlapped in the iron core stator 30, the main part 41 is located in the end of the iron core stator 30, and
It is bonded with the inner wall of the iron core stator 30, the positioning groove portion 43 is sheathed on outside the positioning convex portion 31.
As shown in Fig. 2~Fig. 6, to make the iron core stator 30 and the iron core 20 interact, in the iron core
Coil packet 70 is equipped between stator 30 and the iron core 20.In the present embodiment, there are two the coil packet 70 is set: First Line
Circle packet 71 and the second coil packet 72.The first coil packet 71 is consistent with the shape and structure of the second coil packet 72.For convenience of installation,
In the present embodiment, the coil packet 70 selection is prefabricated into block-like coil packet 70, can directly carry out installation fixation, without
Coiling is carried out in assembling process.The mounting hole that shape and the positioning convex portion 31 match is equipped in the center of the coil packet 70
73, the size of the mounting hole 73 is slightly larger than the Outside Dimensions of the positioning convex portion 31, so that the coil packet 70 can cover
In the positioning convex portion 31 of the iron core stator 30.Preferably, the global shape of the coil packet 70 should be fixed with the iron core
The shape in the arc plate portion 33 of son 30 matches, and is also in arcuation.
As shown in Figure 1 and Figure 2, the casing assembly includes shell 80, end cap 90.Further, it may also include locating piece
100。
As shown in Fig. 2, the shell 80 is cylindrical in shape, cover at outside the iron core stator 30.To reduce whole device
Volume, cross-sectional shape of the cross-sectional shape of the shell 80 preferably with the iron core stator 30 matches, in the present embodiment,
The cross section of the shell 80 is in run-track shaped.For iron core stator 30, coil packet 70 are coated inside it, the shell 80
Length should be greater than the length of the coil packet 70.
One end of the shell 80 is in open-like shape, is used to connect with 90 pairing of end cap.The shell 80 it is another
End is then equipped with circular bearing hole 81, is used to install bearing 101.When the iron core 20, iron core stator 30, central axis
10, when group of magnets 60, coil packet 70, insulation sleeve 40 are installed in the casing assembly, the free end of the central axis 10 is passed through
The bearing hole 81 and extend out to outside the casing assembly.For convenience of the rotation of central axis 10, it is arranged on the central axis 10
Bearing 101.The bearing 101 is then installed at the bearing hole 81.
The end cap 90 is connect with 80 pairing of shell, is used to cover the end of the shell 80, and for inserting institute
State elastic slice 50.Inserted for convenience of with the shell 80, in the present embodiment, the end cap 90 include integrally formed cartridge part 91,
Abutting part 92 and socket 93.The cartridge part 91 is used to be inserted into the inside of the shell 80, and the abutting part 92 is for limiting
Position abuts the end of the shell 80, and the socket 93 is located at the outside of the shell 80.The cartridge part 91 is cylindrical in shape,
Shape and the end shape of the shell 80 match, the inside dimension phase of the outside dimension of the cartridge part 91 and 80 end of shell
Matching, when cartridge part 91 and the shell 80 are to being combined, the outer surface of the cartridge part 91 is interior with the shell 80
Surface fits.The inside dimension of the cartridge part 91 should not interfere the coil packet 70.The abutting part 92 is formed in described insert
Between dress portion 91 and the socket 93, outside dimension is slightly larger than the outside dimension of the cartridge part 91, thus in cartridge part 91
End forms convex edge, to limit the end for abutting the shell 80.It is described to support in the present embodiment to enhance appearance globality
The outside dimension of socket part 92 and the outside dimension of the shell 80 match.The shape of the socket 93 is unlimited, length with it is described
The length of elastic slice 50 is related.The inner hollow of the socket 93 and the locating slot 94 for forming settable locating piece 100.It is described to insert
The internal run-through of groove portion 93 and the cartridge part 91 is used to install the locating piece 100 and elastic slice 50.For convenience of lead company
It connects, threading hole is additionally provided on the end cap 90, the threading hole penetrates through the outside and inside of the end cap 90, so that shell group
The connecting pin of coil packet 70 in part can be by leading to outside casing assembly in casing assembly.In the present embodiment, the threading hole is total
If there are two, it is symmetrically set on the abutting part 92, by the surface of abutting part 92 vertically through to the inside of end cap 90, and
Its position is corresponding with the position of the coil packet 70, carries out so that the connecting pin by coil packet 70 be facilitated to lead to outside end cap 90
Wiring.
As shown in Figure 2 and Figure 3, the locating piece 100 is installed in the inside of the socket 93, shape and the slot
The shape of the interior shape in portion 93, i.e. locating slot 94 matches.On the locating piece 100 be equipped with jack, shape with it is described
The end shape of elastic slice 50 matches, and is used to insert the elastic slice 50.In other embodiments, the locating piece 100 and described
Jack is also the structure being integrally formed on the end cap 90.
The elastic slice 50 is in the sheet of long strip type, can be made of metal material.One end of the elastic slice 50 and it is described in
The end of mandrel 10 connects, and the other end is then inserted into the jack of the locating piece 100.
In addition, being equipped with blocking part 95 in the inside of the cartridge part 91 to prevent the filament of coil packet 70 loose.It is described to support
Stopper 95 and the cartridge part 91 are integrally formed, and are symmetrically set on the inner surface of the cartridge part 91, and are protruded from described
The inner surface of cartridge part 91.The blocking part 95 is located at the corresponding with the flat part 32 of iron core stator 30 of the cartridge part 91
Inner surface on.The setting position of the blocking part 95, the blocking part 95 related to the shape size of the coil packet 70
Presence may make the end of the coil packet 70 assembled to be limited between blocking part 95 and cartridge part 91 respectively, so as to keep away
The filament for exempting from coil packet 70 is loose, prevents coil packet 70 from falling off.In addition, to avoid internal structure overswing, in the inserting
Restricted room 96 is symmetrically arranged on the inner wall in portion 91.The restricted room 96 is located at the plate with iron core stator 30 of the cartridge part 91
On the corresponding position in portion 32 so that the stopper protrusion 23 of the iron core 20 is confined within, so as to
In the limit deflection angle for limiting the iron core 20.In the present embodiment, the restricted room 96 by the blocking part 95 table
Face is recessed and shape, is located at the center of the blocking part 95, and be integrally formed with the blocking part 95, so that described keep out
Portion 95 not only can be used to limit the end of coil packet 70, but also can be used to limit the deflection angle of iron core 20, prevent iron core
20 overswing of rotor and lead to 50 torsional deflection of elastic slice and can not restore.
Whereby, just form the small-sized high-frequency vibration device of the utility model: central axis 10 is sleeved in iron core 20
And it can be rotated synchronously with iron core 20；Group of magnets 60 is installed on iron core 20, and iron core stator 30 is sheathed on iron core
Outside 20, and the positioning convex portion 31 of iron core stator 30 is towards the center of two neighboring magnet；It is fixed that the insulation sleeve 40 is sleeved on iron core
At the both ends of son 30, the coil packet 70 is set in the positioning groove portion 43 of insulation sleeve 40；The shell 80 is sheathed on iron
Outside core stator 30, it is connect with 90 pairing of end cap；One end of the elastic slice 50 is connect with central axis 10, the other end and end cap 90
It is fixed；The free end of the central axis 10 is passed through the shaft hole by the inside of shell 80 and is extend out to outside shell 80, described turn
Axle sleeve is set on central axis 10, and is installed at shaft hole.The stopper protrusion 23 of the iron core 20 is located at the restricted room
In 96；The end of a thread of the coil packet 70 is then drawn by the threading hole on end cap 90 and can be electrically connected to a power source.
In use, when coil 70 no power of packet, as shown in fig. 6, the iron core 20 remains static, the iron
The positioning convex portion 31 of core stator 30 corresponds to the position between the magnet of group of magnets 60, does not correspond to magnet.It is connect when to coil packet 70
When entering positive and negative square wave power, coil is powered and generates magnetic field, so that the positioning convex portion 31 of iron core stator 30 has polarity, so as to
Attract the group of magnets 60 of opposed polarity by magnetic variation, so that reciprocating rotation occurs for iron core 20, to realize height
Frequency vibration.According to group of magnets 60, the difference of the set-up mode of coil packet 70, principle is slightly different, below with different implementation
Example carries out principle explanation respectively:
Embodiment 1
The group of magnets 60 of the present embodiment is set altogether there are four magnet, and the magnet of opposed polarity is along the center of the central shaft hole 21
Axis is axisymmetricly distributed, i.e., as shown in Figure 7, Figure 8, using the line of the stopper protrusion 23 as boundary, the one of iron core 20
Side is equipped with the pole N magnet, the pole S magnet, is equipped with the pole S magnet, the pole N magnet in the other side；With the center line perpendicular to stopper protrusion 23
For boundary, it is equipped with the pole N magnet, the pole S magnet in the side of iron core 20, is equipped with the pole S magnet, the pole N magnet in the other side；It needs to illustrate
, the pole N magnet, the pole S magnet are distinguished with the polarity of the magnet of the same end, by identical magnet by not
With mounting means and formed.The coiling of the coil packet 70 and the distribution of the mode of connection and the group of magnets 60 match.
When being powered to the coil packet 70, according to Ampere's law (screw law), within the scope of positive wave, the two of iron core stator 30
The magnetism of a positioning convex portion 31 is identical, is such as all the pole N, at this time since identical charges repel each other that there is a natural attraction between the sexes for magnet, as shown in fig. 7, the pole S magnetic
Iron will be attracted by positioning convex portion 31, so that iron core 20 rotates, clockwise rotation as shown in Figure 7；And negative
When within the scope of wave, as shown in figure 8, its working principle is similar, since the current direction on coil is reversed, thus positioning convex portion 31
It is magnetic to invert, the pole S is changing by the pole N, so that the current pole S magnet is ostracised, and the pole N magnet is attracted, thus
So that iron core 20 rotates backward, as shown in Figure 8 is rotated counterclockwise.When being persistently passed through positive and negative square wave to coil, iron core
Rotor 20 will between the pole N magnet and the pole S magnet reciprocating rotation.The reciprocating rotation of iron core 20 drives the central axis 10
Reciprocating rotation is moved so as to export band animal body outward, such as head toothbrushes is driven to generate vibration.
Embodiment 2
The group of magnets 60 of the present embodiment is equipped with 4 magnet altogether, and the magnet of opposed polarity is symmetric.Perpendicular to limit
The center line of 23 line of protrusion is boundary, is set in the side of iron core 20 there are two the pole N magnet, in the other side of iron core 20
If there are two the pole S magnet.The coiling of the coil packet 70 and the distribution of the mode of connection and the group of magnets 60 match.When to institute
When stating coil energization, according to Ampere's law (screw law), within the scope of positive wave, two positioning convex portions of iron core stator 30
On the contrary, one end forms the pole N, one end forms the pole S for 31 magnetism, at this time since identical charges repel each other that there is a natural attraction between the sexes for magnet, as shown in figure 9, S
The positioning convex portion 31 of pole will attract the pole the N magnet near it, and the positioning convex portion 31 of the pole N attracts the pole the S magnet near it, to make
It obtains iron core 20 to rotate, clockwise rotation as shown in Figure 9；And when within the scope of negative wave, as shown in Figure 10, work
Principle is similar, and since the current direction on coil packet 70 is reversed, thus the magnetic of positioning convex portion 31 will invert, so that currently
Magnet be ostracised, and the magnet of opposite polarity is attracted, so that iron core 20 rotates backward, as shown in Figure 10 is inverse
Hour hands rotation.When being persistently passed through positive and negative square wave to coil packet 70, iron core 20 will be between the pole N magnet and the pole S magnet
Reciprocating rotation.The reciprocating rotation of iron core 20 drives 10 reciprocating rotation of central axis, so as to export band animal body outward
It is moved, such as head toothbrushes is driven to generate vibration.
It is passed through the electric current of the coil packet 70 by controlling, the reciprocating rotation of the iron core 20 can be controlled.It is described
The rotational angle of iron core 20 is related to the angle of the group of magnets 60 distribution.For the small-sized high frequency vibrating of the utility model
Dynamic device, the rotational angle of iron core 20 is smaller, thus it can produce high-frequency vibration.
Although being disclosed by above embodiments to the utility model, the scope of the utility model is not limited to
In this, under conditions of conceiving without departing from the utility model, above each component can be understood similar with technical field personnel
Or equivalent element is replaced.
Claims (11)
1. a kind of small-sized high-frequency vibration device comprising central axis (10), group of magnets (60), iron core (20), iron core stator
(30) it is sheathed on the central axis (10) and can rotate synchronously, the group of magnets with casing assembly, the iron core (20)
(60) it is set on the iron core (20), which is characterized in that the iron core stator (30) is coated on the iron core (20)
Outside, it and is set in the casing assembly, coil packet is equipped between the iron core stator (30) and the iron core (20)
(70), the coil packet (70) be fixed on the iron core stator (30) towards on a side surface of iron core (20).
2. small-sized high-frequency vibration device as described in claim 1, which is characterized in that the iron core stator (30) is in both ends open
Tubular, be symmetrically arranged on the inner wall of the iron core stator (30) along its axially extending positioning convex portion (31), the positioning
Protrusion (31) relative spacing, the coil packet (70) are symmetrically sheathed on the positioning convex portion (31).
3. small-sized high-frequency vibration device as claimed in claim 2, which is characterized in that in the iron core stator (30) and the line
Insulation sleeve (40) are equipped between circle packet (70), the insulation sleeve (40) is overlapped in respectively at the both ends of the iron core stator (30),
The positioning groove portion (43) that shape matches with the positioning convex portion (31) is equipped on the inner wall of the insulation sleeve (40), it is described fixed
Position groove portion (43) is sheathed on the positioning convex portion (31), and the coil packet (70) is sheathed on the positioning groove portion (43).
4. small-sized high-frequency vibration device as claimed in claim 3, which is characterized in that the insulation sleeve (40) includes tubular
Main part (41), in one end end of the main part (41) convex edge portion (42) with outward extension, in the main part
(41) positioning groove portion (43) is symmetrically arranged on inner wall, positioning groove portion (43) respectively includes the plate portion (431) of parallel interval,
The distance between described plate portion (431) is not less than the thickness of the positioning convex portion (31), sets respectively on the main part (41)
The opening (44) for having the space between the plate portion (431) to connect, the insulation sleeve (40) are overlapped in the iron core stator
(30) when end, the convex edge portion (42) is overlapped on the end face of the iron core stator (30), and the main part (41) is located at
It in the end of the iron core stator (30), and is bonded with the inner wall of the iron core stator (30), the positioning groove portion (43) is arranged
Outside in the positioning convex portion (31).
5. small-sized high-frequency vibration device as claimed in claim 4, which is characterized in that the coil packet (70) includes prefabricated blocking
The first coil packet (71) of shape and the second coil packet (72), in the center of the first coil packet (71) and the second coil packet (72)
Equipped with the mounting hole (73) that shape and the positioning convex portion (31) match, the first coil packet (71) and the second coil packet
(72) it is symmetrically sheathed on the positioning groove portion (43), the positioning convex portion (31) is located in the mounting hole (73), and direction
The group of magnets (60).
6. small-sized high-frequency vibration device as described in claim 1, which is characterized in that set in the center of the iron core (20)
Have a central shaft hole (21) for installing the central axis (10), the central axis (10) be set in the central shaft hole (21) and can be with
The iron core (20) rotates synchronously；Several magnet peaces being spaced apart from each other are equipped on the outer wall of the iron core (20)
Tankage (22), the magnet mounting groove (22) is in a strip shape, parallel with the central shaft hole (21) respectively, the group of magnets (60)
In the magnet mounting groove (22).
7. small-sized high-frequency vibration device as claimed in claim 6, which is characterized in that on the outer wall of the iron core (20)
It is symmetrically arranged with stopper protrusion outstanding (23), the stopper protrusion (23) is prolonged by one end of the iron core (20) along its axial direction
Extend to its other end；The magnet mounting groove (22) is symmetric along the stopper protrusion (23) respectively there are four setting altogether.
8. small-sized high-frequency vibration device as described in claim 1, which is characterized in that the casing assembly includes what pairing connected
Shell (80) and end cap (90), the shell (80) are cylindrical in shape, and cover at the outside of the iron core stator (30), the shell
(80) open at one end and connect with the end cap (90) pairing, the other end be equipped with circular bearing hole (81), the central axis
(10) bearing hole (81) are passed through by the inside of the shell (80) and extend out to shell (80) outside, in the central axis (10)
On be arranged with bearing (101), the bearing (101) is installed in the bearing hole (81).
9. small-sized high-frequency vibration device as claimed in claim 8, which is characterized in that the central axis (10) be equipped with axis
It holds (101) opposite other end to be connected with elastic slice (50), the elastic slice (50) is in the sheet of long strip type；In the end cap (90)
Equipped with locating slot (94), locating piece (100) are equipped in the locating slot (94), in the locating piece (100) towards center
The position of axis (10) is equipped with jack, and the shape of the jack and the end shape of the elastic slice (50) match, the elastic slice
(50) one end is plugged in the jack, and the other end is connect with the end of the central axis (10).
10. small-sized high-frequency vibration device as claimed in claim 9, which is characterized in that the end cap (90) includes being integrally formed
Cartridge part (91), abutting part (92) and socket (93), the cartridge part (91) is cylindrical in shape, and is plugged in the shell (80)
Inside, the abutting part (92) limit abuts the end of the shell (80), and the socket (93) is located at the shell
(80) outside, the inner hollow of the socket (93) and form the locating slot (94), the socket (93) with it is described
The internal run-through of cartridge part (91) is used to install the locating piece (100) and elastic slice (50).
11. small-sized high-frequency vibration device as claimed in claim 10, which is characterized in that be equipped in the inside of the end cap (90)
Blocking part (95)；The blocking part (95) is symmetrically set in the opposite with the flat part (32) of iron core stator (30) of the end cap (90)
On the inner surface answered, the blocking part (95) protrudes from the inner surface of the cartridge part (91) and can be by the coil packet
(70) end is limited in respectively between the blocking part (95) and cartridge part (91)；The depression in centre of the blocking part (95) and
Form the restricted room (96) that can limit the iron core deflection angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821669982.3U CN209170063U (en) | 2018-10-15 | 2018-10-15 | Small-sized high-frequency vibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821669982.3U CN209170063U (en) | 2018-10-15 | 2018-10-15 | Small-sized high-frequency vibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209170063U true CN209170063U (en) | 2019-07-26 |
Family
ID=67333745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821669982.3U Active CN209170063U (en) | 2018-10-15 | 2018-10-15 | Small-sized high-frequency vibration device |
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| Country | Link |
|---|---|
| CN (1) | CN209170063U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420069A (en) * | 2019-08-09 | 2019-11-08 | 东莞市米贝科技有限公司 | A kind of electric toothbrush and its electric machine |
| CN114257037A (en) * | 2020-09-21 | 2022-03-29 | 北京小米移动软件有限公司 | Vibration assembly |
-
2018
- 2018-10-15 CN CN201821669982.3U patent/CN209170063U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420069A (en) * | 2019-08-09 | 2019-11-08 | 东莞市米贝科技有限公司 | A kind of electric toothbrush and its electric machine |
| CN114257037A (en) * | 2020-09-21 | 2022-03-29 | 北京小米移动软件有限公司 | Vibration assembly |
| CN114257037B (en) * | 2020-09-21 | 2023-08-04 | 北京小米移动软件有限公司 | Vibration assembly |
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