CN219843497U - Novel sound wave motor - Google Patents

Abstract

The utility model discloses a novel acoustic wave motor, which is used for power sources of different devices and comprises a shell, a stator mechanism assembled in the shell, a coil assembled on the stator mechanism, a rotor mechanism arranged in the stator mechanism, a rotating shaft connected with the rotor mechanism and a tailstock assembled on an opening at the tail part of the shell, wherein the tailstock is provided with an assembly groove penetrating through the inner surface and the outer surface and extending outwards to the side wall of the tailstock, outgoing wires of the coil are clamped into the assembly groove through the opening at the side wall of the tailstock, and before the tailstock is assembled in the shell, the outgoing wires of the coil are manually clamped into the assembly groove from the opening at the side wall of the tailstock in advance.

Description

Novel sound wave motor

Technical Field

The utility model relates to the technical field of acoustic motors, in particular to a novel acoustic motor.

Background

The current acoustic wave motor in the market is an electromagnetic device for converting electric energy into kinetic energy according to the law of electromagnetic induction, and the main function of the electromagnetic device is to generate driving torque which is used as a power source of different devices, such as an electric motor core (namely an acoustic wave motor) of an electric toothbrush, and when the acoustic wave motor is electrified, the toothbrush head is driven to generate high-frequency vibration.

The general sound wave motor moves through the electromagnetic action between a rotor and a stator with a coil, and the coil connected to an alternating current circuit is used for magnetizing the stator to form a periodic alternating magnetic field so as to enable the rotor to reciprocate in the changing magnetic field in the stator and drive a rotating shaft to generate high-frequency vibration.

Chinese patent CN217935259U specification discloses a novel sonic motor, which comprises a housing, the one end of casing is equipped with the tailstock, be equipped with stator module on the inner wall of casing, stator module's inside is equipped with rotor module, rotor module includes the rotor shaft, be equipped with the iron core on the circumference of rotor shaft, the coiling has the coil on the iron core, the coil is connected with the wire (i.e. the lead-out wire of coil), assemble before the casing at the tailstock, through manual work, aim at the wire and pass the through-hole of tailstock to stretch out the outside of tailstock, but the aperture of through-hole is less, the wire of coil is not good to aim at the through-hole, cause the operator to operate inconveniently, it is long consuming time, production efficiency is low.

Disclosure of Invention

Therefore, the utility model provides a novel acoustic wave motor for conveniently installing the outgoing line of the coil.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model provides a novel sound wave motor, includes the casing, assembles stator mechanism in the casing, assembles coil on the stator mechanism, set up rotor mechanism in the stator mechanism, connect rotor mechanism's pivot and assemble the tailstock on the afterbody opening of casing, the tailstock has and runs through inside and outside surface and outwards extends to the assembly groove of the lateral wall of tailstock, the lead-out wire of coil warp the opening card of the lateral wall of tailstock goes into in the assembly groove.

Further, the assembly groove comprises a wire guiding groove and a wire fixing groove, one end of the wire guiding groove extends to the side wall of the tailstock to form an opening, and the wire fixing groove is communicated with the other end of the wire guiding groove and is arranged at an angle with the wire guiding groove.

Further, the cross section of the assembly groove is L-shaped, V-shaped or C-shaped.

Further, the rotor mechanism comprises a magnet assembly and a hollow rotor core, wherein the outer peripheral surface of the rotor core is provided with a mounting groove matched with the magnet assembly, the magnet assembly is fixedly assembled in the mounting groove, and the rotating shaft is penetrated and fixed in the rotor core.

Further, the outer peripheral surface of the rotor core is further provided with a limiting boss formed by outwards protruding extension, the stator mechanism is provided with a limiting groove, and the limiting groove limits the circumferential rotation range of the limiting boss, so that the rotor core rotates around the central shaft of the rotating shaft within a limited rotation angle range.

Further, the stator mechanism comprises a stator core assembly and an insulating bracket with a space for accommodating the stator core assembly, the insulating bracket is assembled in the casing, the stator core assembly is assembled in the insulating bracket, the coil is assembled outside the insulating bracket, and a clamping groove is formed in the inner wall of the insulating bracket and is the limiting groove.

Further, the stator core assembly includes a first stator core and a second stator core having a Y-shape, and is symmetrically disposed on the 2-side of the insulation support.

Further, the insulating support comprises a first insulating support and a second insulating support, and the first support and the second support are connected in a involution mode and fixed into a whole.

Further, the tail seat is provided with a fixing groove matched with the elastic piece, one end of the elastic piece is assembled on the rotating shaft, and the other end of the elastic piece is assembled in the fixing groove.

Further, the rotating shaft comprises an output shaft and a mandrel, the mandrel is connected with the rotor mechanism, and the output shaft is fixedly assembled at one end of the mandrel, which is exposed out of the casing.

The technical scheme provided by the utility model has the following beneficial effects:

before the tailstock is assembled in the casing, the outgoing line of the coil is manually clamped into the assembly groove from the opening of the assembly groove positioned on the side wall of the tailstock, so that the operation is more convenient, the time consumption is less, and the production efficiency is improved.

Drawings

FIG. 1 is an exploded view of a novel acoustic wave motor according to a first embodiment;

FIG. 2 is a cross-sectional view of a tailstock in accordance with one embodiment;

FIG. 3 is a cross-sectional view of a novel acoustic wave motor according to the first embodiment;

FIG. 4 is an exploded view of a portion of a novel acoustic motor according to an embodiment;

FIG. 5 is a schematic view of an insulating support according to a first embodiment;

fig. 6 is a schematic view of an insulating support detached from the left and right in the first embodiment;

fig. 7 is a schematic view showing an insulating holder detached from the top and bottom in the first embodiment;

FIG. 8 is an exploded view of a stator mechanism according to the first embodiment;

fig. 9 is an external view of a novel acoustic wave motor according to the first embodiment.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

Example 1

Referring to fig. 1 to 9, a first embodiment provides a novel acoustic wave motor for power sources of different devices, comprising a housing 1, a stator mechanism 2 assembled in the housing 1, a coil 4 assembled on the stator mechanism 2, a rotor mechanism 3 arranged in the stator mechanism 2, a rotating shaft 6 connected with the rotor mechanism 3, and a tailstock 5 assembled on a tail opening of the housing 1, wherein the tailstock 5 is provided with an assembling groove 51 penetrating through inner and outer surfaces and extending outwards to a side wall 52 of the tailstock 5, and a lead wire 43 of the coil 4 is clamped into the assembling groove 51 through an opening of the side wall 52 of the tailstock 5.

After the lead-out wire 43 of the coil 4 is electrified with an external alternating current circuit, the periodic alternating magnetic field generated by the coil 4 magnetizes the stator mechanism 2, and the rotor mechanism 3 reciprocates by taking the central shaft of the rotating shaft 6 as the center under the action of the periodic alternating magnetic field formed by the stator mechanism 2, so as to drive the rotating shaft 6 to reciprocate.

Before the tail seat 5 is assembled on the shell 1, the outgoing line 43 of the coil 4 is manually clamped into the assembling groove 51 from the opening of the side wall 52 of the tail seat 5, so that the operation is more convenient, the time consumption is less, and the production efficiency is improved.

In another preferred embodiment, the assembly groove 51 includes a wire guiding groove 512 and a wire fixing groove 511, one end of the wire guiding groove 512 extends to the side wall 52 of the tail seat 5 to form an opening, and the wire fixing groove 511 communicates with the other end of the wire guiding groove 512 and is disposed at an angle to the wire guiding groove 512.

More specifically, the cross-sectional shape of the assembly groove 51 is L-shaped; the lead grooves 512 and the wire fixing grooves 511 are 90 ° to each other.

Before the tail seat 5 is assembled in the casing 1, the outgoing line 43 of the coil 4 is manually clamped into the lead groove 512 from the opening of the side wall 52 of the tail seat 5, so that the outgoing line 43 is convenient to install.

After the tail stock 5 is fixed on the casing 1, the outgoing line 43 enters the wire fixing groove 511 along the wire fixing groove 512, and the outgoing line position 431 of the outgoing line 43 is fixed under the auxiliary cooperation of other external mechanical components, so that the outgoing line 43 is prevented from sliding out of the notch of the side wall 52 of the tail stock 5, which is positioned on the wire fixing groove 512, and the risk of poor insulation between the coil 4 and the casing 1 caused by the fact that the outgoing line 43 contacts the casing 1 is reduced.

Of course, the cross-sectional shape of the assembly groove 51 is not limited to this, and the cross-sectional shape of the assembly groove 51 is V-shaped (i.e. the included angle between the lead groove 512 and the wire fixing groove 511 is smaller than 90 °), C-shaped (the lead groove 512 and the wire fixing groove 511 are arc structures), or other structures capable of clamping the lead wire 43; that is, the outlet position 431 where the outlet wire 43 extends from the tailstock 5 is spaced from the casing 1 by a certain space, so that the risk of poor insulation can be reduced.

In another preferred embodiment, the rotor mechanism 3 includes a magnet assembly 31 and a hollow rotor core 32, the outer peripheral surface of the rotor core 32 has a mounting groove 321 for matching with the magnet assembly 31, the magnet assembly 31 is fixedly assembled in the mounting groove 321, and the rotating shaft 6 is fixedly inserted into the rotor core 32.

In this embodiment, the magnet assembly 31 includes 4 magnetic shoes (not shown) with magnetism, the number of the installation slots 321 of the rotor core 32 with axisymmetric structure corresponds to the number of the installation slots 321, that is, the number of the installation slots 321 is set to 4, each magnetic shoe is fixedly assembled in the corresponding installation slot 321 in sequence, the 4 magnetic shoes and the matched installation slots 321 are uniformly and symmetrically distributed on the outer peripheral surface of the rotor core 32, and the rotating shaft 6 passes through the installation space inside the rotor core 32 and is fixed with the rotor core 32.

After the 4 magnetic shoes are fixed on the rotor core 32, the poles where the outer surfaces of the 4 magnetic shoes are located are N pole, S pole, N pole and S pole in order of clockwise.

When the coil 4 is electrified in an alternating current mode (such as square wave waveform), according to ampere rule, when the alternating current is in a positive wave range, the coil 4 magnetizes the stator mechanism 2 to form a magnetic pole part of N poles, and according to the principle that like poles repel each other and unlike poles attract each other, a magnetic force effect is formed between the rotor core 32 and the magnetic pole part of N poles of the stator mechanism 2, so that the rotor core 32 is driven to rotate clockwise along with the rotating shaft 6.

When the alternating current is switched into the negative wave range, the coil 4 magnetizes the magnetic pole part of the stator mechanism 2 to be changed into the S pole due to the reverse current direction on the coil 4, and the magnetic force action is formed between the rotor core 32 and the magnetic pole part of the S pole of the stator mechanism 2, so that the rotor core 32 is driven to rotate along with the rotating shaft 6 in the anticlockwise direction.

The rotor core 32 makes a reciprocating rotation in the switching process between the N pole and the S pole of the stator mechanism 2, and the rotor core 32 drives the rotating shaft 6 to make a reciprocating rotation, so as to drive a mechanical part of a device assembled on the rotating shaft 6 to make a motion, for example, drive the electric toothbrush head to vibrate.

Of course, in other embodiments, the magnetic poles of the outer surfaces of the 4 magnetic shoes may be N pole, S pole and S pole sequentially in clockwise order, so that the rotor mechanism 3 can also reciprocate in the periodic alternating magnetic field.

More specifically, the outer peripheral surface of the rotor core 32 is further provided with a limiting boss 322 that is formed by protruding outwards, and the stator mechanism 2 is provided with a limiting groove 213, and the limiting groove 213 limits the circumferential rotation range of the limiting boss 322, so that the rotor core 32 rotates around the central axis of the rotating shaft 6 within a defined rotation angle range.

The number of the setting of the limiting bosses 322 in this embodiment is 2, the 2 limiting bosses 322 are symmetrically distributed with the central axis of the rotor core 32 as the center, and each limiting boss 322 is located in a spacing area between two adjacent 2 mounting grooves 321, the number of the setting of the limiting grooves 213 is 2, and each limiting groove 213 limits the circumferential rotation range of the limiting boss 322, so that the rotor core 32 rotates around the central axis of the rotating shaft 6 in a limited rotation angle range, so as to prevent the rotation range of the rotor core 32 from exceeding the allowable specification value range of the acoustic motor (namely, the novel acoustic motor), and reduce the risk of mechanical damage inside the acoustic motor.

More specifically, the stator mechanism 2 includes a stator core assembly 22 and an insulating bracket 21 having a space for accommodating the stator core assembly 22, the insulating bracket 21 is assembled inside the casing 1, the stator core assembly 22 is assembled inside the insulating bracket 21, the coil 4 is assembled outside the insulating bracket 21, and a clamping groove is formed in an inner wall of the insulating bracket 21, and is the limiting groove 213.

The stator core assembly 22 of this embodiment is made of soft magnetic material, such as soft magnetic ferrite or silicon steel with high magnetic permeability and low coercivity, the insulating support 21 is made of plastic material, the stator core assembly 22 is wrapped inside the insulating support 21 by adopting an injection molding process, the stator core assembly 22 is assembled into a whole, then the coil 4 is sleeved and fixed outside the insulating support 21, and the coil 4 and the stator core assembly 22 are correspondingly arranged.

The preferred coil 4 adopts a self-adhesive coil, so that the complicated manual winding to form the coil 4 is omitted, the process difficulty is reduced, the winding time is also saved, and the production efficiency is improved.

In addition, after the stator core assembly 22 is injection molded in the insulating support 21, the appearance section of the insulating support 21 is matched with the section of the inner wall of the casing 1, when the coil 4 is tightly contacted with the inner wall of the casing 1, after the coil 4 is electrified, magnetic force lines induced by the coil 4 can be conducted and communicated through the casing 1 with magnetic conductivity, so that the magnetic field strength and magnetic flux are further increased, unnecessary magnetic force line loss is avoided, and energy conservation is facilitated.

Still more specifically, the limiting groove 213 is disposed on the inner wall of the insulating support 21 and is disposed on a side deviating from the tailstock 5, the limiting groove 213 is matched with the limiting boss 322, and the limiting boss 322 is also disposed on a side deviating from the tailstock 5 of the rotor core 32, so that the length of the limiting boss 322 along the axial direction of the rotating shaft 6 is a part of the total length of the rotor core 32, which is equivalent to reducing the volume of the rotor core 32, so as to reduce the weight of the rotor core 32, namely, the weight of the acoustic motor is also reduced.

Of course, in other embodiments, the structure of the stator mechanism 2 is not limited thereto, for example, the stator core assembly 22 is fixed on the inner wall of the insulating bracket 21 by glue bonding, and it is not necessary to injection mold the stator core assembly 22 into the insulating bracket 21.

In further detail, the stator core assembly 22 includes a first stator core 221 and a second stator core 222 having a Y-shape, and is symmetrically disposed on the 2-side of the insulation support 21.

In this embodiment, the inner wall of the insulating support 21 has a first assembling cavity 214 and a second assembling cavity 215 for respectively accommodating a first stator core 221 and a second stator core 222, and outer walls of the first assembling cavity 214 and the second assembling cavity 215 are extended to be protruded outwards to form a first assembling boss 216 and a second assembling boss 217 in sequence, the first stator core 221 and the second stator core 222 are assembled in the corresponding first assembling cavity 214 and the second assembling cavity 215, the coil 4 includes a first coil 41 and a second coil 42, the first coil 41 corresponds to the first stator core 221, the second coil 42 corresponds to the second stator core 222, the first coil 41 is sleeved and fixed on the first assembling boss 216, and the second coil 42 is sleeved and fixed on the second assembling boss 217.

The first stator core 221 and the second stator core 222 are Y-shaped, and the end faces of the first stator core 221 and the second stator core 222 facing the rotor mechanism 3 are both plane, so that part of the inner wall of the insulating support 21 corresponding to the plane end faces 223 of the first stator core 221 and the second stator core 222 is of a plane structure, thus preventing mutual interference between the rotor mechanism 3 and the stator mechanism 2, and providing a magnetic field meeting the requirements of the acoustic motor for the rotor mechanism 3 after the first stator core 221 and the second stator core 222 are magnetized by the coil 4.

In a preferred embodiment, the first stator core 221 and the second stator core 222 are wrapped in the corresponding first assembly cavity 214 and second assembly cavity 215 through an injection molding process, that is, the first stator core 221, the second stator core 222 and the insulating support 21 are injection molded and assembled into a whole.

In addition, the stator core assembly 22 is split into separate designs that are not connected with each other, so that the connection part between the separate parts is saved, that is, the volume of the stator core assembly 22 is reduced, and since the density of the stator core assembly 22 (mainly composed of soft magnetic ferrite or silicon steel) is greater than that of the insulating support 21 (mainly composed of plastic material), the weight of the stator core assembly 22 is reduced, and the weight of the acoustic motor is reduced accordingly.

In a preferred embodiment, the insulating support 21 includes an insulating first support 211 and a second support 212, and the first support 211 and the second support 212 are integrally connected and fixed.

The insulating support 21 is split into the first support 211 and the second support 212 which are independent, so that the size of a cavity of a die cavity for injection molding is reduced, the difficulty of an injection molding process is reduced, the injection molding yield of the first support 211 and the second support 212 is improved, and the production cost is further reduced.

Of course, the first bracket 211 and the second bracket 212 may be split structures with upper and lower halves, or split structures with left and right halves.

When the first bracket 211 and the second bracket 212 are split structures with left and right halves, the first stator core 221 corresponds to the first bracket 211 (i.e., the left half of the insulating bracket 21), the second stator core 222 corresponds to the second bracket 212 (i.e., the right half of the insulating bracket 21), the first stator core 221 and the second stator core 222 are respectively injection-molded and assembled in the corresponding first bracket 211 and second bracket 212, and then the second bracket 212 is fixedly connected to the first bracket 211 in a butt joint manner, so as to form the complete stator mechanism 2.

Compared with the fact that the stator mechanism 2 which is not split and is formed by injection molding (namely, the first stator core 221, the second stator core 222 and the insulating bracket 21 are included) is partially lost or the other specifications are bad, the whole stator mechanism 2 can only be scrapped, and the left bracket (namely, the first stator core 221 and the first bracket 211 are included) or the right bracket (namely, the second stator core 222 and the second bracket 212) which is formed by injection molding and is of a split structure is only scrapped, when the left bracket or the right bracket is partially lost or the other specifications are bad, the bad left bracket or the right bracket is firstly selected before the left bracket and the right bracket are fixedly assembled, and then the scrapping treatment of the whole stator mechanism 2 is not caused, so that the scrapping treatment of the whole stator mechanism 2 is facilitated, the production cost is reduced, and the economic loss caused by the sudden events such as the mass production of the bad products (namely, the stator mechanism 2 comprises the first stator core 221, the second stator core 222 and the insulating bracket 21) is facilitated.

When the first bracket 211 and the second bracket 212 are split structures of upper and lower halves, the first bracket 211 (i.e., the upper half of the insulating bracket 21) is sequentially provided with a third assembly cavity (not labeled) and a fourth assembly cavity (not labeled) corresponding to the halves of the first stator core 221 and the second stator core 222, respectively, the second bracket 212 (i.e., the lower half of the insulating bracket 21) is sequentially provided with a fifth assembly cavity (not labeled) and a sixth assembly cavity (not labeled) corresponding to the halves of the first stator core 221 and the second stator core 222, respectively, after the first stator core 221 is inserted into the third assembly cavity of the first bracket 211, the second stator core 222 is inserted into the fourth assembly cavity of the first bracket 211, and then the second bracket 212 is fixedly connected to the first bracket 211 in an abutting manner, and the third assembly cavity corresponds to the fifth assembly cavity, and the fourth assembly cavity corresponds to the sixth assembly cavity, so that the first bracket 212, the second stator core 221 and the second stator core 222 can be assembled together in a simple manner, and the corresponding structures of the first bracket 211, the second bracket 221 and the second stator core 2 can be assembled together.

Compared with the fact that the stator mechanism 2 which is not split and is formed by injection molding cannot be normally used due to partial missing or other specifications of the first stator core 221, the second stator core 222 and the insulating bracket 21, the whole stator mechanism 2 can only be scrapped, and the first bracket 211 (which does not contain the first stator core 221) or the second bracket 212 (which does not contain the second stator core 222) of the split structure is beneficial to reducing the scrapping of defective products, reducing the production cost, reducing the economic loss caused by sudden accidents such as mass production of the defective products (which are the stator mechanism 2 with the defective quality and the stator mechanism 2 containing the first stator core 221, the second stator core 222 and the insulating bracket 21) and the like when the first bracket 211 or the second bracket 212 is firstly selected out before the first bracket 211 and the second bracket 212 are fixedly assembled.

In another preferred embodiment, the tail seat 5 further comprises a spring plate 7, the tail seat is provided with a fixing groove 53 matched with the spring plate 7, one end of the spring plate 7 is assembled on the rotating shaft 6, and the other end of the spring plate is assembled in the fixing groove 53.

In this embodiment, two ends of the elastic sheet 7 are respectively provided with a round hole (not shown), one end of the rotating shaft 6, which is close to the tailstock 5, is provided with a semi-closed bonding groove 611, one end (with a round hole) of the elastic sheet 7 is inserted into the bonding groove 611 and is fixed on the rotating shaft 6 through glue bonding, the other end (with a round hole) of the elastic sheet 7 is inserted into the fixing groove 53 and is fixed on the tailstock 5 through glue bonding, of course, the fixing between the tailstock 5 and the elastic sheet 7 can also be injection molding and fixed connection, and the rotating shaft can be fixed in the rotor mechanism 3 through glue bonding, and can also be connected in the rotor mechanism 3 through fixing modes such as thread fixing or pin fixing, which will not be described in detail herein.

Through 2 round holes at two ends of the elastic sheet 7, the bonding area of glue is increased, and the elastic sheet 7 is more firmly fixed with the tailstock 5 and the rotating shaft 6 respectively.

The structure that the elastic sheet 7 is fixedly connected between the rotating shaft 6 and the tailstock 5 replaces the structure that the rotating shaft 6 is connected with the positioning bearing assembled in the tailstock 5, so that the positioning bearing connection of the tailstock 5 is canceled, when the acoustic wave motor is electrified and operated, the rotating shaft 6 and the rotor mechanism 3 are not moved in the acoustic wave motor along the axial direction of the motor, so that the noise of the acoustic wave motor is reduced, and the cost of parts corresponding to the positioning bearing of the tailstock 5 is saved.

The elastic sheet 7 adopts a cuboid-like structure, and the resonance frequency (namely the natural frequency) of the corresponding acoustic wave motor is adjusted by changing the width or the thickness of the elastic sheet 7, so that the requirements of different customers on different resonance frequencies of the acoustic wave motor can be conveniently and rapidly met.

In a preferred embodiment, the elastic sheet 7 is made of an elastic metal sheet, and the limit groove 213 limits the circumferential rotation range of the limit boss 322, so that the rotor core 32 rotates around the central axis of the rotating shaft 6 within a limited rotation angle range, so as to prevent the rotation range of the rotor core 32 from exceeding the allowable specification range of the acoustic motor, and also prevent the elastic sheet 7 fixedly connected to the rotating shaft 6 from being damaged due to excessive torsional deformation.

In another preferred embodiment, the rotating shaft 6 includes an output shaft 62 and a spindle 61, the spindle 61 is connected to the rotor mechanism 3, and the output shaft 62 is fixedly mounted on an end of the spindle 61 exposed to the casing 1.

In this embodiment, the mandrel 61 is fixed in the installation space (not marked) inside the rotor core 32 in a penetrating way, one end of the mandrel 61 deviating from the output shaft 62 is fixedly connected to one end of the elastic sheet 7, the other end of the elastic sheet 7 is fixedly connected to the other end of the elastic sheet 5 in the fixing groove 53 of the tailstock, the other end of the mandrel 61 is fixedly connected to the output shaft 62, the output shaft 62 is connected to one end of the casing 1 deviating from the tailstock 5 through the limit bearing 8, the output shaft 62 is used for a mechanical part of a connecting device, and thus, the rotating shaft 6 adopts a split design (such as the rotating shaft 6 comprises the output shaft 62 and the mandrel 61), and the structure is simple and durable.

In a preferred embodiment, one end of the mandrel 61 near the tailstock 5 has a semi-closed bonding groove 611, one end (with a round hole) of the spring 7 is inserted into the bonding groove 611 of the mandrel 61 and is fixed on the mandrel 61 by glue bonding, and the other end (with a round hole) of the spring 7 is inserted into the fixing groove 53 and is fixed on the tailstock 5 by glue bonding.

The mandrel 61 is provided with flat grooves 612 near 2 opposite sides of the output shaft 62, one end of the output shaft 62 near the mandrel 61 is provided with a mounting hole 621 matched with the mandrel 61, the mandrel 61 is inserted into the mounting hole 621 of the output shaft 62, the mandrel 61 and the output shaft 62 are fixed together through glue adhesion, when the mandrel 61 is inserted into the mounting hole 621 of the output shaft 62, air in the mounting hole 621 is discharged from the flat grooves 612 through the flat grooves 612 of the mandrel 61, the mandrel 61 is favorably inserted into the mounting hole 621 smoothly, and the air in the mounting hole 621 is prevented from being sealed by the mandrel 61, namely, the mandrel 61 is prevented from being blocked from entering the mounting hole 621.

Example two

The second embodiment provides a novel acoustic wave motor, and the structure of the novel acoustic wave motor is the same as that of the first embodiment, except that the novel acoustic wave motor further comprises a positioning bearing (not shown) and a cancel spring piece 7, the positioning bearing is assembled in a fixed groove 53 of a tailstock 5, a rotating shaft 6 penetrates through a rotor mechanism 3 and is assembled on the front part of a machine shell 1 through a limit bearing 8, and one end, close to the tailstock 5, of the rotating shaft is connected with the positioning bearing.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. The utility model provides a novel sound wave motor, includes the casing, assembles stator mechanism in the casing, assembles coil on the stator mechanism, set up rotor mechanism in the stator mechanism, connect rotor mechanism's pivot and assemble the tailstock on the afterbody opening of casing, its characterized in that:

the tail seat is provided with an assembly groove penetrating through the inner surface and the outer surface and extending outwards to the side wall of the tail seat, and the outgoing line of the coil is clamped into the assembly groove through the opening of the side wall of the tail seat.

2. The novel acoustic wave motor according to claim 1, wherein: the assembly groove comprises a lead groove and a wire fixing groove, one end of the lead groove extends to the side wall of the tailstock to form an opening, and the wire fixing groove is communicated with the other end of the lead groove and is arranged at an angle with the lead groove.

3. The novel acoustic wave motor according to claim 2, characterized in that: the cross section of the assembly groove is L-shaped, V-shaped or C-shaped.

4. The novel acoustic wave motor according to claim 1 or 2, characterized in that: the rotor mechanism comprises a magnet assembly and a hollow rotor core, wherein the outer peripheral surface of the rotor core is provided with a mounting groove matched with the magnet assembly, the magnet assembly is fixedly assembled in the mounting groove, and the rotating shaft is penetrated and fixed in the rotor core.

5. The novel acoustic wave motor according to claim 4, wherein: the outer peripheral surface of the rotor core is also provided with a limit boss formed by outwards protruding extension, the stator mechanism is provided with a limit groove, and the limit groove limits the circumferential rotation range of the limit boss so that the rotor core rotates around the central shaft of the rotating shaft within a limited rotation angle range.

6. The novel acoustic wave motor according to claim 5, wherein: the stator mechanism comprises a stator core assembly and an insulating bracket with a space for accommodating the stator core assembly, the insulating bracket is assembled in the casing, the stator core assembly is assembled in the insulating bracket, the coil is assembled outside the insulating bracket, and the inner wall of the insulating bracket is provided with a clamping groove which is the limiting groove.

7. The novel acoustic wave motor according to claim 6, wherein: the stator core assembly comprises a first stator core and a second stator core which are Y-shaped, and the stator core assembly is symmetrically arranged on two sides of the insulating support.

8. The novel acoustic wave motor according to claim 6 or 7, characterized in that: the insulating support comprises an insulating first support and an insulating second support, and the first support and the second support are connected in a involution mode and fixed into a whole.

9. A novel acoustic wave motor according to claim 1 or 2 or 3, characterized in that: the tail seat is provided with a fixing groove matched with the elastic piece, one end of the elastic piece is assembled on the rotating shaft, and the other end of the elastic piece is assembled in the fixing groove.

10. A novel acoustic wave motor according to claim 1 or 2 or 3, characterized in that: the rotating shaft comprises an output shaft and a mandrel, the mandrel is connected with the rotor mechanism, and the output shaft is fixedly assembled at one end of the mandrel, which is exposed out of the shell.