CN110855116B

CN110855116B - XYZ three-direction vibration motor

Info

Publication number: CN110855116B
Application number: CN201911085619.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Sichuan Awa Seimitsu Electric Co ltd
Current assignee: SICHUAN AWA SEIMITSU ELECTRIC Co.,Ltd.
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2022-02-11
Anticipated expiration: 2039-11-08
Also published as: CN110855116A

Abstract

The invention belongs to the technical field of micro motors, and particularly discloses an XYZ three-direction vibration motor which comprises a machine shell, a base, a vibrator assembly and a stator assembly, wherein the machine shell and the base are combined to form an accommodating space; the XY-direction vibrating block and the Z-direction vibrating block are fixed and suspended in the containing space through elastic parts respectively, and a circular hole is formed in the middle of the XY-direction vibrating block and surrounds the periphery of the Z-direction vibrating block; magnets are embedded at four corners of the XY-direction vibrating block, coils are correspondingly arranged right below the magnets, the Z-direction vibrating block is provided with a magnetic conduction shell, the Z-direction driving magnet is fixed on the magnetic conduction shell, and the coils are arranged between the magnetic conduction shell and the Z-direction driving magnet; the flexible circuit board is arranged on the base, and the first coil and the second coil are fixed on the flexible circuit board.

Description

XYZ three-direction vibration motor

Technical Field

The invention belongs to the technical field of micro motors, and particularly relates to an XYZ three-direction vibration motor.

Background

With the rapid development of portable and intelligent electronic products, consumers prefer electronic products with the best tactile experience, such as smart phones, handheld game consoles, medical and health devices, multimedia entertainment devices, and the like, which generally use a vibration motor for system feedback, such as incoming call vibration alert of a mobile phone, vibration feedback of a game console, vibration of a medical and health vibrating toothbrush, and the like.

However, most of the vibration motors in the prior art vibrate in a single direction, that is, vibrate in one direction, and the vibration is single. Meanwhile, there is also a related art of a two-direction linear vibration motor that can perform vibration in two directions. However, the vibration experience of the multidimensional three-dimensional tactile feedback of the user can not be met because the vibration motors in the three directions, namely the XYZ directions, which can vibrate independently in the three directions, are few.

Disclosure of Invention

The invention aims to provide an XYZ three-direction vibration motor capable of simultaneously and independently vibrating in an X direction, a Y direction and a Z direction and a vibration motor capable of simultaneously vibrating in the XY direction, the XZ direction, the YZ direction or the XYZ direction so as to meet the vibration experience of multi-dimensional stereo tactile feedback of a user.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the XYZ three-direction vibration motor comprises a machine shell, a base, a vibrator assembly and a stator assembly, wherein the machine shell and the base are combined to form an accommodating space, the vibrator assembly comprises an XY-direction vibration block and a Z-direction vibration block, and the stator assembly comprises a coil and a flexible circuit board; the XY-direction vibrating block and the Z-direction vibrating block are fixed and suspended in the containing space through elastic parts respectively, and a circular hole is formed in the middle of the XY-direction vibrating block and surrounds the periphery of the Z-direction vibrating block; magnets are embedded at four corners of the XY-direction vibrating block, coils are correspondingly arranged right below the magnets, a magnetic conduction shell is arranged at the bottom of the Z-direction vibrating block, a Z-direction driving magnet is fixed inside the magnetic conduction shell, and the coils are arranged between the magnetic conduction shell and the Z-direction driving magnet; the flexible circuit board sets up on the base, and the coil is including fixing first coil and the second coil on the flexible circuit board, and first coil and second coil are connected with the flexible circuit board electricity.

Furthermore, the Z-direction vibrating block is provided with an air escape hole, the bottom of the Z-direction vibrating block is provided with a groove, and the groove is used for fixing the magnetic conduction shell.

Furthermore, a groove is formed in the upper end face of the Z-direction vibrating block and used for storing the magnetic fluid.

Furthermore, the end face of the Z-direction drive magnet is bonded with a magnetic leakage prevention sheet.

Further, an XY-direction magnetic isolation plate is fixed at the upper end of the XY-direction vibrating block, and the XY-direction magnetic isolation plate and the XY-direction vibrating block are shaped like a Chinese character tian.

Furthermore, noise reduction anti-collision foam is fixed at the upper end of the XY direction vibration block and is annular.

Further, the middle of the flexible circuit board is provided with a hollowed circular surface, the flexible circuit board is of an inner ring and outer ring structure integrally, the hollowed circular surface in the middle of the flexible circuit board is an inner ring, and the inner ring and the outer ring of the flexible circuit board are provided with connecting structures in an arrangement mode.

Further, the flexible circuit board is provided with a signal source interface.

Furthermore, the upper part of the shell is provided with a square step, and an upward circular boss is arranged in the opposite direction of the square step.

Furthermore, a circular sinking platform is arranged in the middle of the base and used for fixing the inner ring of the flexible circuit board, and a noise reduction hole is formed in the center of the circular sinking platform.

The technical effects of the XYZ three-direction vibration motor provided by the invention are as follows:

1. the XYZ three-direction vibration motor provided by the invention can simultaneously and independently vibrate in the X direction, the Y direction and the Z direction and can simultaneously vibrate in the XY direction, the XZ direction, the YZ direction or the XYZ direction, and the three-direction vibration motor can meet the vibration feedback in a three-dimensional space, greatly improve the vibration feedback effect and meet the vibration experience of multi-dimensional three-dimensional tactile feedback of a user.

2. The invention innovatively designs the S-shaped spring which can meet the vibration requirement in the XY direction.

3. The invention designs an XY direction vibrating block, the vibrating block is in a shape of a Chinese character tian, a bipolar magnet is embedded in the vibrating block, and the middle part avoids Z direction vibration; and an effective vibration space is provided for Z-direction vibration while the XY-direction vibration is satisfied.

4. The invention designs the bipolar magnet, the bipolar magnet greatly increases the driving force, and the vibration quantity required by X, Y-direction vibration is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded view of each part of an XYZ vibrator.

Fig. 2 is a schematic view of a housing.

FIG. 3 is a schematic view of a first spring in the Z-direction.

FIG. 4-1 is a schematic view of a vibrating mass in the Z direction.

Fig. 4-2 is a schematic view of a Z-direction vibrating mass.

FIG. 5 is a schematic view showing the positions of the vibrating mass, the magnet, the magnetic conductive casing and the magnetic leakage preventing sheet in the Z direction.

FIG. 6 is a second spring schematic in the Z direction.

FIG. 7 is a schematic view of an XY vibrator mass.

FIG. 8 is a schematic view showing the positions of an S-shaped spring, an XY vibrator vibrating mass, a multi-stage magnet, and a noise reduction foam.

Fig. 9 is a schematic view of an S-shaped spring.

Fig. 10 is a schematic diagram of a flexible circuit board and XY-direction winding groups.

Figure 11 is a schematic view of the base.

Fig. 12 is an external view of the XYZ three-direction vibration motor.

Reference numerals: 1-a machine shell, a 2-Z direction first spring, a 3-Z direction vibrating block, a 4-magnetic conduction shell, a 5-Z direction driving magnet, a 6-Z direction magnetic leakage prevention sheet, a 7-Z direction driving winding group, an 8-Z direction second spring, a 9-noise reduction anti-collision foam, a 10-XY direction magnetic leakage prevention sheet, an 11-XY direction vibrating block, a 12-bipolar magnet, a 13-S type spring, a 14-XY direction winding group, a 15-flexible circuit board, a 16-base, a 101-signal source groove, a 102-machine shell inner side wall, a 103-circular boss, a 104-square step, a 201-a first spring outer ring, a 202-a first spring inner ring, a 203-a first spring wire, 301 a-301 c air escape holes and a 302-Z direction vibrating block groove, 303-Z direction vibrating block lower end face, 304-Z direction vibrating block upper end face, 305-Z direction vibrating block magnetic fluid groove, 801-second spring outer ring, 802-second spring inner ring, 803 a-803 c-second spring wire, 1101 a-1101 d-rectangular hole, 1102 a-1102 d-rectangular groove, 1103-round hole, 1104-annular step, 12 a-12 d-bipolar magnet, 13 a-13 d-S type spring, 14 a-14 d-XY winding group, 1301-first section straight edge, 1302-second section arc edge, 1303-third section arc edge, 1304-fourth section straight edge, 1305-fifth section straight edge, 1501-signal source interface, 1502-circular structure, 1504-noise reduction hole, 1503-connection structure, 1601-base upper end face, 1602-circular sinking platform end face, 1603-noise reduction hole and 1604-circular sinking platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is to be understood that the directions or positional relationships indicated by the X direction, the Y direction, the Z direction, etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships which are conventionally placed when the products of the present invention are used, or the directions or positional relationships which are conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 12, the XYZ-direction vibration motor includes a housing 1, a base 16, a vibrator assembly, and a stator assembly, where the housing 1 and the base 16 are combined to form an accommodating space, and an opening at a lower end of the housing 1 is fixed to the base 16 to protect internal components and also to be a vibration carrier. As shown in fig. 2, the casing 1 is made of stainless steel, the upper portion of the casing 1 is provided with a square step 104, the square step 104 is used for fixing the elastic member, an upward circular boss 103 is arranged in the opposite direction of the square step 104, the circular boss 103 provides and limits an effective vibration space for Z-direction vibration, and the casing 1 is provided with a signal source groove 101. As shown in fig. 11, the base 16 is made of stainless steel, a circular sinking platform 1604 is disposed in the middle of the base 16, and a noise reduction hole 1603 is disposed in the center of the circular sinking platform 1604.

As shown in fig. 1, the XYZ-three-direction linear vibration motor includes two vibrating masses, an XY-direction vibrating mass 11 and a Z-direction vibrating mass 3, wherein the vibrator assembly includes the XY-direction vibrating mass 11 and the Z-direction vibrating mass 3, and the stator assembly includes a coil and a flexible circuit board 15; the XY direction vibrating mass 11 and the Z direction vibrating mass 3 are fixed and suspended in the containing space through elastic parts respectively, the round hole 1103 is formed in the middle of the XY direction vibrating mass 11, the round hole 1103 surrounds the Z direction vibrating mass 3, and the Z direction vibrating mass 3 always moves inside the XY direction vibrating mass round hole 1103. The magnet is inlayed in 11 four corners positions of XY direction vibrating mass, the correspondence is equipped with the coil under the magnet, 3 bottoms of Z direction vibrating mass are equipped with magnetic conduction shell 4, the inside fixed Z direction drive magnetite 5 of magnetic conduction shell 4, be equipped with the coil between magnetic conduction shell 4 and the Z direction drive magnetite 5, Z direction coil wholly is located between magnetic conduction shell 4 and the Z direction drive magnetite 5, remain the clearance each other, can relative motion do not have the interference, wholly constitute Z direction drive structure, when Z direction coil 7 passes through the electric current, utilize the effect of lorentz force to make a round trip to push and pull Z direction vibrating mass 3, turn into mechanical energy to the electric energy. The coil is electrically connected to the Flexible Circuit Board 15, the Flexible Circuit Board is also called an FPCB (Flexible Printed Circuit Board, abbreviated as FPCB or FPC), the Flexible Circuit Board 15 is disposed on the base 16, the coil includes a first coil and a second coil fixed on the Flexible Circuit Board, and the first coil and the second coil are electrically connected to the Flexible Circuit Board 15. The XYZ three-direction vibration motor provided by the invention can simultaneously and independently vibrate in the X direction, the Y direction and the Z direction and can simultaneously vibrate in the XY direction, the XZ direction, the YZ direction or the XYZ direction, and the three-direction vibration motor can meet the vibration feedback in a three-dimensional space, greatly improve the vibration feedback effect and meet the vibration experience of multi-dimensional three-dimensional tactile feedback of a user.

The Z-direction vibrating mass 3 is fixed and suspended in the accommodating space by two upper and lower springs, as shown in fig. 3 to 6, an upper end face 304 of the Z-direction vibrating mass is fixed to the first spring inner ring 202, the first spring outer ring 201 is fixed to the inner side wall of the casing, a lower end face 303 of the Z-direction vibrating mass is fixed to the second spring inner ring 802, the second spring outer ring 801 is fixed to the upper end face 1601 of the base, and the two upper and lower springs provide support for the Z-direction vibrating mass and keep a vertical body, thereby providing necessary conditions for Z-direction resonance.

As shown in fig. 3 to 6, the first spring and the second spring are arranged in opposite directions, the first spring 2 in the Z direction and the second spring 8 in the Z direction form a vertical vibration elastic force combination, in this embodiment, the first spring 2 in the Z direction has counterclockwise spring wires, and the second spring 8 in the Z direction has clockwise spring wires. It should be noted that, in another embodiment, the first spring wires in the Z direction may be arranged in a clockwise distribution, and the second spring wires in the Z direction may be arranged in a counterclockwise distribution. As shown in fig. 3, four first spring wires 203 are arranged between the first spring inner ring 202 and the first spring outer ring 201 in the Z direction, and the four spring wires 203 are distributed in a central symmetry manner to provide an elastic structure. As shown in fig. 6, three second spring wires 803a to 803c are disposed between the second spring inner coil 802 and the second spring outer coil 801 in the Z direction, and the three spring wires are distributed in a central symmetry manner to provide an elastic structure.

The XY-direction vibrating block 11 is fixed and suspended in the accommodating space by an S-shaped spring 13, one end of the S-shaped spring 13 is fixed to the XY-direction vibrating block 11, and the other end of the S-shaped spring 13 is fixed to the inner wall of the side surface of the casing 1. The XY-direction vibrating mass 11 is suspended between the casing and the base by being fixed by four S-shaped springs 13. The S-shaped spring 13 is fitted inside the XY-direction vibrating mass and fixed by laser welding. The outer sides of the S-shaped springs are fixed on the inner side wall 102 of the shell, and 4S-shaped springs 13 pull the XY-direction vibrating block 11 to suspend the XY-direction vibrating block in the middle.

As shown in fig. 9, the S-shaped spring 13 has a thin plate structure and is made of stainless steel. The S-shaped spring 13 includes a first straight edge 1301, a second arc 1302, a third arc 1303, a fourth straight edge 1304, and a fifth straight edge 1305, the first straight edge 1301 is fixed in the rectangular grooves 1102a to 1102d of the XY-direction vibrating block 11, the second arc 1302 and the third arc 1303 form an S-shaped structure, the S-shaped structure performs vibration buffering in opposite directions, the fourth straight edge 1304 is a main elastic structure, and an energy transmission mechanism, and the fifth straight edge 1305 is fixed on the inner wall of the side face of the casing 1. The S-shaped spring 13 suspends the entire XY-directional vibrating mass 11 between the casing and the base.

As shown in fig. 7, multipolar magnets are fitted to four corners of the XY-directional vibrating mass 11 and fixed in rectangular holes 1101a to 1101d at the four corners of the XY-directional vibrating mass 11. The XY direction vibrating block is in a structure like a Chinese character tian, a round hole 1103 is formed in the middle of the XY direction vibrating block, and the round hole 1103 is used for avoiding a space needed by Z direction vibration; rectangular holes 1101 a-1101 d are formed in the four corners of the magnetic core, and multistage magnets are filled in the rectangular holes; rectangular grooves 1102 a-1102 d are formed in the four sides of the horizontal vibrating block and used for fixing the S-shaped springs 13 a-13 d, and the horizontal vibrating block is made of tungsten alloy.

The multi-pole magnets are distributed at the corners of the vibrating mass in the XY direction and correspond to XY winding groups on the FPCB, the vibrating mass is driven to generate linear vibration in the X direction or the Y direction under the electrifying effect of the XY winding groups, and the XY direction is covered with a magnetic leakage prevention plate on the upper part of the vibrating mass to adjust a magnetic circuit and prevent magnetic leakage.

The multi-stage magnet is a bipolar magnet 12, a non-magnetic area is arranged between two poles of the bipolar magnet, the width of the non-magnetic area is larger than 0.5mm, and the bipolar magnet is square. The bipolar magnets are fixed in rectangular holes at four corners of the horizontal vibrating block, the four corners are embedded with four bipolar magnets 12 a-12 d, XY-direction winding groups 14 correspond to the positions right below the bipolar magnets, and the XY-direction winding groups 14 are fixed on the FPCB; the XY-direction winding group 14 and the bipolar magnet 12 correspond to each other and provide power for driving in the X direction and the Y direction, respectively. In addition, the coil windings at opposite corners are connected in series and correspond to the magnets with opposite magnetic poles at opposite corners. When current flows through the coil winding in the X direction, Lorentz force is generated between the XY direction winding group 14 and the corresponding magnet 12, the Lorentz force pushes the XY direction vibrating block 11 to deflect, the mechanical energy of the XY direction vibrating block is transmitted to the shell corresponding to the S-shaped spring 13, vibration is further formed, and the vibration principle in the Y direction is consistent with that in the X direction.

An XY-direction magnetic isolation plate 10 is fixed at the upper end of the XY-direction vibrating block 11, the XY-direction magnetic isolation plate 10 is used for optimizing a magnetic circuit, the XY-direction magnetic isolation plate 10 and the XY-direction vibrating block 11 are shaped like a Chinese character tian, and the XY-direction magnetic isolation plate 10 is integrally fixed at the upper end of the horizontal vibrating block, shields the magnetic circuit of the multi-stage magnet and optimizes the magnetic circuit.

The upper end of the XY direction vibrating block 11 is fixed with noise reduction anti-collision foam 9, the noise reduction anti-collision foam 9 is annular, the noise reduction anti-collision foam 9 is fixed in an annular step 1104 at the upper end of the horizontal vibrating block, and the Z direction vibration collision is protected, so that the noise is weakened. The noise reduction and collision avoidance foam 9 effectively avoids collision and noise generated by the XY-direction vibrating block 11 and the Z-direction vibrating block 3.

As shown in fig. 4, the Z-direction vibration block 3 has air vents, in this embodiment, three air vents 301a to 301c are provided, a groove is formed at the bottom of the Z-direction vibration block 3, that is, a Z-direction vibration block groove 302, and the Z-direction vibration block groove 302 is used for fixing the magnetic conduction casing 4. When the vibrating block works in the Z direction, the air escape holes 301 facilitate the internal compressed air flow to pass through; the groove arranged on the vibrating block in the Z direction is used for embedding the magnetic conduction shell 4; the upper end face 304 of the Z-direction vibrating block is fixed with the inner side of the Z-direction first spring 202, the upper end face of the Z-direction vibrating block 3 is provided with a groove, namely a Z-direction vibrating block magnetic fluid groove 305, and the Z-direction vibrating block magnetic fluid groove 305 is used for storing magnetic fluid and reducing noise; the lower end surface 303 of the Z-direction vibrating mass is fixed with the Z-direction second spring inner ring 802, and the subsequent movement of the Z-direction vibrating mass is between the Z-direction first spring and the Z-direction second spring.

As shown in fig. 5, the magnetic conduction shell 4 is embedded in the Z-direction vibration block groove 302, the Z-direction drive magnet 5 is fixed inside the magnetic conduction shell 4, the Z-direction antimagnetic leakage sheet 6 is bonded to the end face of the drive magnet 5, and the three components form an effective magnetic field required by Z-direction vibration. The magnetic conduction shell 4 and the Z-direction magnetic leakage prevention sheet 6 have the function of correcting the magnetic path of the magnet, so that the internal magnetic field intensity is enhanced to weaken the divergence of an external magnetic field. The Z-direction drive winding group 7 is a first coil, which is cylindrical, and the bottom end of the first coil is fixed to the FPCB.

The vibrating block in the Z direction is in a T-shaped structure. The circular face of the upper part of the vibrating mass is provided with a circular sinking groove, and the groove is used for containing magnetic fluid and plays a role in damping and noise reduction when colliding with the shell. And a circular ring shallow groove is formed in the circular edge of the upper part of the balance block and used for placing and fixing the inner ring of the first spring in the Z direction. The Z-direction vibrating block is provided with a ladder-shaped table board downwards, the ladder-shaped table board is used for placing and fixing the Z-direction second spring inner ring, so that the Z-direction first spring, the Z-direction second spring and the vibrating block are connected into a whole and support the Z-direction second spring and the vibrating block. The lower part of the vibrating block is provided with an inwards concave cylindrical inner cavity for placing and fixing the cylindrical magnetic conduction shell. The magnetic conduction shell is internally provided with a Z-direction driving magnet. The end face of the Z-direction driving magnet is provided with a magnetic leakage prevention sheet.

As shown in fig. 10, a hollowed circular surface is arranged in the middle of the flexible circuit board 15, the flexible circuit board 15 is integrally of an inner ring and an outer ring structure, the hollowed circular surface in the middle of the flexible circuit board 15 is an inner ring, the inner ring is of a circular structure 1502, and the inner ring and the outer ring of the flexible circuit board 15 are arranged to form a connecting structure 1504. XY direction winding groups 14 a-14 d and a Z direction driving winding group 7 are fixed on the FPCB flexible plate, four groups of horizontal winding

groups

14a, 14b, 14c and 14d are arranged on the FPCB flexible plate, the positions of the four groups of horizontal winding groups respectively correspond to four multi-stage magnets on the horizontal vibrating block, and a magnetic structure is formed among the four multi-stage magnets; the vertical winding set is arranged between the magnetic conduction shell 4 and the Z-direction driving magnet 5, and a magnetic structure is formed between the vertical winding set and the magnetic conduction shell. FPCB inner circle is arranged and is set up connection structure 1504, and the FPCB inner circle is equipped with and falls the hole 1503 of making an uproar, and circular structure 1502 can be impressed inside the circular heavy platform 1604 of base. 6 signal source interfaces 1501 are arranged at the end part of the FPCB, wherein 1/2 is an X-direction current input; 3/4 bit Y-direction current input; 5/6 bit vertical direction current input. The bottom surface of the FPCB is fixed to the base upper end face 1601.

The inner ring of the flexible circuit board 15 is fixed with a first coil, the first coil is cylindrical, the outer ring of the flexible circuit board 15 is fixed with a second coil, the second coil is an XY-direction winding group 14, the first coil is a Z-direction driving winding group 7, the FPCB is provided with a signal source interface 1501 except for the horizontal driving winding group 14 and the Z-direction driving winding group 7, and an external current signal can be input through the signal source interface 1501. FPCB fixes in the base upper end, and base 16 and casing 1 are fixed wholly, and base and casing are stainless steel material wholly to inside article protect.

The FPCB circuit board welding has the winding group towards two poles of earth magnetite, and the winding group is totally four groups, provides vibration drive power for the X, Y direction. The Z-direction winding group is welded on a hollowed circular surface in the middle of the FPCB plate and is connected with the circular surface through a single-piece design structure, the circular surface part welded with the Z-direction winding group is attached and fixed to a sinking circular sinking platform end face 1602 of the vibrator base through the structure, the Z-direction winding group is enabled to be over against a Z-direction driving magnet, and Z-direction electromagnetic force is generated under the power-on state. Simultaneously for Z direction vibration subassembly vibration down, provide effective vibration space, X direction and Y direction coil assembly and Z direction coil can weld at same FPCB board so far, the effectual circuit design of having simplified and optimized vibrating motor's spatial structure.

As shown in fig. 12, the overall configuration of the XYZ three-directional vibration motor is a circular sinking platform structure, which provides an effective space for the Z-directional vibrating mass to vibrate downwards, and the FPCB plate with the Z-directional coil is conveniently welded to the hollowed circular surface and the circular sinking platform to be attached to each other. The periphery of the upper end of the circular sinking platform of the vibrator base is used for connecting and fixing the Z-direction second spring outer ring, so that the vibrating block in the Z direction is supported and kept vertical, and necessary conditions are created for elastic recovery of the spring in the Z direction. The circular heavy platform center design of base has the hole of making an uproar of falling, and its effect reduces the air resistance and to the interference of Z direction vibration subassembly when the vibration.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, the above embodiments are only for assisting understanding of the method of the present invention and the core idea thereof, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

An XYZ three-direction vibration motor comprises a machine shell, a base, a vibrator assembly and a stator assembly, wherein the machine shell and the base are combined to form an accommodating space;

the XY-direction vibrating block and the Z-direction vibrating block are fixed and suspended in the containing space through elastic parts respectively, and a circular hole is formed in the middle of the XY-direction vibrating block and surrounds the periphery of the Z-direction vibrating block;

magnets are embedded at four corners of the XY-direction vibrating block, coils are correspondingly arranged right below the magnets, a magnetic conduction shell is arranged at the bottom of the Z-direction vibrating block, a Z-direction driving magnet is fixed inside the magnetic conduction shell, and the coils are arranged between the magnetic conduction shell and the Z-direction driving magnet;

the flexible circuit board is arranged on the base, the coil comprises a first coil and a second coil which are fixed on the flexible circuit board, and the first coil and the second coil are electrically connected with the flexible circuit board;

the end face of the Z-direction driving magnet is bonded with an anti-magnetic leakage sheet, an XY-direction magnetic isolation plate is fixed at the upper end of the XY-direction vibrating block, and the XY-direction magnetic isolation plate and the XY-direction vibrating block are shaped like a Chinese character 'tian'.
2. The XYZ three-direction vibration motor of claim 1, wherein: the Z-direction vibrating block is provided with an air escape hole, the bottom of the Z-direction vibrating block is provided with a groove, and the groove is used for fixing the magnetic conduction shell.
3. The XYZ three-direction vibration motor of claim 2, wherein: and the upper end surface of the Z-direction vibrating block is provided with a groove which is used for storing the magnetic fluid.
4. The XYZ three-direction vibration motor of claim 1, wherein: and the upper end of the XY-direction vibrating block is fixedly provided with noise-reducing anti-collision foam which is annular.
5. The XYZ three-direction vibration motor of claim 1, wherein: the flexible circuit board is characterized in that a hollowed-out circular surface is arranged in the middle of the flexible circuit board, the flexible circuit board is of an inner ring and outer ring structure integrally, the hollowed-out circular surface in the middle of the flexible circuit board is an inner ring, and the inner ring and the outer ring of the flexible circuit board are provided with connecting structures.
6. The XYZ three-direction vibration motor of claim 5, wherein: the flexible circuit board is provided with a signal source interface.
7. The XYZ three-direction vibration motor of claim 1, wherein: the upper part of the shell is provided with a square step, and an upward circular boss is arranged in the opposite direction of the square step.
8. The XYZ three-direction vibration motor of claim 1, wherein: the middle of the base is provided with a circular sinking platform, the circular sinking platform fixes the inner ring of the flexible circuit board, and the center of the circular sinking platform is provided with a noise reduction hole.