CN111293851A - XYZ three-direction vibrator - Google Patents

Abstract

The invention belongs to the technical field of micro motors, and particularly discloses an XYZ three-direction vibrator, 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; a first magnet assembly and a second magnet assembly are embedded in the XY-direction vibrating block, the first magnet assembly and the second magnet assembly are in symmetrical structures respectively by taking the round hole as the center, and coils are arranged in the directions of the first magnet assembly and the second magnet assembly corresponding to the base; the coil is electrically connected with the flexible circuit board, and the flexible circuit board is arranged on the base.

Description

XYZ three-direction vibrator

Technical Field

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

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 vibration feedback, such as incoming call vibration alert of a mobile phone, vibration feedback of a game console, vibration of a medical and health vibration 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 linear vibration motor that vibrates in two directions, and the vibration can be performed in two directions. However, the three directions are simultaneously satisfied, and the XYZ three-direction vibrators which can vibrate independently in the three directions are few, and the vibration experience of the multidimensional three-dimensional tactile feedback of the user cannot be satisfied.

Disclosure of Invention

The invention aims to provide an XYZ three-direction vibrator which can be matched with a unipolar magnet and a circuit structure so as to meet the vibration experience of multi-dimensional three-dimensional 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 vibrator 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 vibrating block and a Z-direction vibrating 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; a first magnet assembly and a second magnet assembly are embedded in the XY-direction vibrating block, the first magnet assembly and the second magnet assembly are in symmetrical structures respectively by taking the round hole as the center, and coils are arranged in the directions of the first magnet assembly and the second magnet assembly corresponding to the base; a magnetic conduction shell is arranged at the bottom of the Z-direction vibrating block, a Z-direction driving magnet is fixed in the magnetic conduction shell, and a coil is arranged between the magnetic conduction shell and the Z-direction driving magnet; the coil is electrically connected with the flexible circuit board, and the flexible circuit board is arranged on the base.

Furthermore, XY direction vibrating mass is the cuboid, and the parallel both ends of inlaying the short avris at XY direction vibrating mass of first magnet subassembly, and the second magnet subassembly is inlayed in the middle of the first magnet subassembly.

Further, the first and second magnet assemblies are unipolar magnets.

Further, the first magnet assembly is 2 groups of unipolar magnets, the second magnet assembly is 1 group of unipolar magnets, and each group of magnets consists of N, S poles of two magnets and corresponds to one coil.

Further, the number of the first magnet assemblies and the number of the second magnet assemblies are respectively 2.

Furthermore, the first magnet assemblies correspond to 2X-direction coils connected in series, the number of the second magnet assemblies corresponding to the Y direction is 1, and the Y-direction coils surround the periphery of the circular hole.

Further, the second magnet assembly corresponds to 2Y-direction coils connected in series, and the Y-direction coils are arranged on two sides of the round hole.

Furthermore, the flexible circuit board comprises an inner ring connected with the Z-direction coil and an outer ring connected with the XY-direction coil, the inner ring is a hollow circular surface, the circular surface of the inner ring and the plane of the outer ring are arranged in parallel at intervals, and the inner ring and the outer ring of the flexible circuit board are electrically connected through a connecting bridge.

Furthermore, a Y-direction coil is fixed on the periphery of the Z-direction coil, and an X-direction coil is fixed at two ends of the short side of the Y-direction coil.

Furthermore, the flexible circuit board comprises an X-direction signal source interface, a Z-direction signal source interface and a Y-direction signal source interface; the X-direction signal source interface is correspondingly connected with the X-direction coil, the Y-direction signal source interface is correspondingly connected with the Y-direction coil, and the Z-direction signal source interface is correspondingly connected with the Z-direction coil.

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

1. the XYZ three-direction vibrator 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 vibrator 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 of the XY-direction vibrating block, and the S-shaped spring can meet the vibration requirement in the XY direction.

3. The invention designs three groups of coils, wherein the number of the coils in the X direction is 1 group, the number of the coils in the Y direction is 1 group, and the number of the coils in the Z direction is 1 group, so that separate and respective energization control can be realized, combined energization control can also be realized, and vibration feedback in a three-dimensional space can be realized.

4. The invention designs a monopole magnet and a square coil structure in XY directions, wherein an N magnet and an S magnet form a group and respectively correspond to the square coil, and the overall resultant force provides XY-direction driving.

5. The invention designs a double-layer structure of the FPCB and simultaneously electrically connects the coils in the XYZ directions, wherein, the two coils in the X direction are connected in series, the coil in the Y direction can be realized by connecting one coil and the two coils in series, and the Z direction is a cylindrical coil, thereby being capable of meeting the requirements of unidirectional movement and combined direction movement.

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 view of the S-spring and Z-direction first spring position.

FIG. 11 is a schematic diagram of the connection of the flexible circuit board, XYZ windings, and the internal circuitry of the flexible circuit board.

FIG. 12 is a schematic diagram showing the relative positions of the XY winding groups and XY driving magnets according to one embodiment.

FIG. 13 is a schematic diagram showing the relative positions of the XY winding groups and the XY driving magnets in the embodiment.

FIG. 14 is a schematic three-phase position diagram of the XY winding set and the XY driving magnets of the embodiment.

Figure 15 is a schematic view of the base.

Fig. 16 is an external view of the XYZ vibrator.

Fig. 17 is a schematic sectional view of an XYZ three-direction vibrator.

Reference numerals: 1-cabinet, 2-Z direction first spring, 3-Z direction vibrating block, 4-magnetic conductive housing, 5-Z direction driving magnet, 6-Z direction magnetic leakage prevention magnet, 7-Z direction coil, 8-Z direction second spring, 9-XY direction magnetic leakage prevention magnet, 10-noise reduction anti-collision foam, 11-XY direction vibrating block, 12-Y direction driving magnet, 13-X direction driving magnet, 14-S type spring, 15-X direction coil, 16-Y direction coil, 17-flexible circuit board, 18-base, 101-signal source groove, 102-cabinet inner side wall, 103-circular boss, 104-square step, 201-first spring outer ring, 202-first spring inner ring, 203-first spring wire, 301 a-301 c air escape holes, 302-Z direction vibration block grooves, 303-Z direction vibration block lower end face, 304-Z direction vibration block upper end face, 305-Z direction vibration block magnetic fluid grooves, 801-second spring outer ring, 802-second spring inner ring, 803 a-803 c-second spring wire, 1101 a-1101 d-X direction drive magnet placing hole, 1105 a-1105 b-Y direction drive magnet placing hole, 1102a-XY direction vibration block short side face, 1102b-XY direction vibration block long side face, 1103-round hole, 1104-annular step, 12 a-12 d-Y direction drive magnet, 13 a-13 d-X direction drive magnet, 14 a-14 b-S type spring, 15 a-15 b-X direction coil, 16 a-16 b-Y direction coil, 1401-a first section straight edge, 1402-a second section arc edge, 1403-a third section arc edge, 1404-a fourth section straight edge, 1405-a fifth section straight edge, 1701 a-1701 b-X direction signal source interface, 1702 a-1702 b-Z direction signal source interface, 1703 a-1703 b-Y direction signal source interface, 1704-connecting bridge, 1705-inner ring, 1801-upper end face of base, 1802-square groove, 1803-circular sinking platform, 1804-noise reduction hole.

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.

Referring to fig. 1 to 17, the XYZ-direction vibrator includes a casing 1, a base 18, a vibrator assembly (not shown), and a stator assembly (not shown), wherein an open end of the casing 1 is fixed to the base 18, and the casing 1 and the base 18 are combined to form an accommodating space for protecting internal components and also serving as a vibration carrier. Referring to fig. 2, the casing 1 is made of stainless steel, the top of the casing 1 is provided with a square step 104 recessed into the accommodating space, the square step 104 is used for fixing the elastic member, a circular boss 103 is convexly arranged at the central position of the square step 104 in the opposite direction of the accommodating space, the circular boss 103 provides and defines an effective vibration space for Z-direction vibration, and the edge of the side wall of the opening end of the casing 1 is provided with a signal source groove 101. Referring to fig. 15, the base 18 is made of a stainless steel plate, a circular sinking platform 1803 is disposed in the middle of the base 18, the circular sinking platform 1803 provides and defines an effective vibration space for Z-direction vibration, a square groove 1802 is disposed at a side of the periphery of the circular sinking platform 1803 close to the signal source groove 101, and a noise reduction hole 1804 is disposed at the center of the circular sinking platform 1803.

Referring to fig. 1, the vibrator assembly of the XYZ-orientation vibrator includes two vibrating masses, i.e., an XY-orientation vibrating mass 11 and a Z-orientation vibrating mass 3, and the stator assembly includes a coil and a flexible circuit board 17; 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.

A first magnet assembly (not marked) and a second magnet assembly (not marked) are inlaid in the XY-direction vibrating block, the first magnet assembly and the second magnet assembly are in symmetrical structures respectively by taking the round hole 1103 as a center, and coils are arranged in the first magnet assembly and the second magnet assembly corresponding to the direction of the base 18; be equipped with one end open-ended cylindrical magnetic conduction shell 4 on Z direction vibrating mass 3, Z direction vibrating mass bottom is equipped with magnetic conduction shell 4, the fixed columniform Z direction drive magnetite 5 of roof internal surface central point of magnetic conduction shell 4, the inside fixed Z direction drive magnetite 5 of magnetic conduction shell promptly, form the clearance between magnetic conduction shell 4 and the Z direction drive magnetite 5, be equipped with the annular circular coil in the clearance, the width in clearance is greater than the thickness of coil, can make the coil relative motion in the clearance not have the interference, when Z direction coil 7 circular telegram, utilize the effect of lorentz force to make a round trip push-and-pull Z direction vibrating mass 3, convert the electric energy into mechanical energy, wholly constitute Z direction drive structure. The coil is fixed to and electrically connected to a Flexible Circuit Board 17, which is also called an FPCB (Flexible Printed Circuit Board, abbreviated as FPCB or FPC), and the Flexible Circuit Board 17 is disposed on a base 18. The XYZ three-direction vibrator 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 vibrator 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.

Referring to fig. 7 to 14, the XY-direction vibrating mass 11 is a rectangular parallelepiped and is provided with driving magnet placement holes, first magnet assemblies are embedded in parallel at both ends of a short side of the XY-direction vibrating mass 11, a second magnet assembly is embedded in parallel in the middle of the first magnet assembly of the XY-direction vibrating mass 11, the first magnet assembly includes X-direction driving magnets 13a to 13d, the second magnet assembly includes Y-direction driving magnets 12a to 12b, bar magnets 13a to 13d are fixed in X-direction driving magnet placement holes 1101a to 1101d at both ends of the XY-direction vibrating mass 11, and bar magnets 12a to 12b are fixed in Y-direction driving magnet placement holes 1105a to 1105b at a middle position of the XY-direction vibrating mass 11. First magnet subassembly and second magnet subassembly are the monopole magnetite, and the monopole magnetite structure of horizontal direction innovative design, magnetite correspond two opposite sides of square coil respectively, and whole resultant force provides the horizontal direction drive to make X direction, Y direction, Z direction be independent coil, and then make the three-directional vibrator of XYZ can satisfy the unidirectional motion. According to the first embodiment of the present disclosure, referring to fig. 12, the first magnet assembly is 2 groups of unipolar magnets, the second magnet assembly is 1 group of unipolar magnets, wherein 13a to 13b are one group of first magnet assemblies, 13c to 13d are one group of first magnet assemblies, the two groups of first magnet assemblies are symmetrically configured around the circular hole 1103, N, S poles of the two groups of magnets are oppositely disposed, the number of the second magnet assemblies is 1 group of 12a to 12b, and each group of magnets is formed by N, S poles of two magnets and corresponds to one coil. The first magnet assembly corresponds to 2X-direction coils 15 a-15 b connected in series, the number of the second magnet assembly corresponding to the Y direction is 1, and the Y-direction coils 16 surround the periphery of the circular hole.

According to the second embodiment of the present disclosure, referring to fig. 13, the number of the first magnet assemblies and the number of the second magnet assemblies are 2, wherein 13a to 13b are a set of first magnet assemblies, 13c to 13d are a set of first magnet assemblies, the two sets of first magnet assemblies are symmetrically configured around the circular hole 1103, each set of magnets of the first magnet assemblies is composed of two N, S pole magnets and corresponds to one coil, the number of the second magnet assemblies is 1 set of 12a to 12b, and two magnets of N, S pole of the second magnet assemblies correspond to one coil respectively. The second magnet assembly corresponds to 2Y-direction coils 16 a-16 b connected in series, which are arranged on both sides of the circular hole.

According to the third embodiment of the present disclosure, referring to fig. 14, the number of the first magnet assemblies and the number of the second magnet assemblies are 2, wherein 13a to 13b are a set of first magnet assemblies, 13c to 13d are a set of first magnet assemblies, the two sets of first magnet assemblies are symmetrically configured around the circular hole 1103, each set of magnets of the first magnet assemblies is composed of N, S poles and corresponds to one coil, the number of the second magnet assemblies is 1 set of 12a to 12b, and each set of magnets of the second magnet assemblies is composed of N, S poles and corresponds to one coil. The second magnet assembly corresponds to 2Y-direction coils 16 a-16 b connected in series, which are arranged on both sides of the circular hole.

Referring to fig. 11 to 15, the flexible circuit board 17 is attached to the base 18 and includes an inner ring electrically connected to the Z-direction coil and an outer ring connected to the XY-direction coil, the inner ring is a hollow circular surface, the circular surface of the inner ring and the plane of the outer ring are parallel and spaced, and the inner ring and the outer ring of the flexible circuit board 17 are electrically connected through a connection bridge 1704. The hollowed circular surface is that the inner ring 1705 is positioned in the middle of the flexible circuit board 17, the shape of the inner ring 1705 of the hollowed circular surface corresponds to the circular sinking platform 1803, the inner ring 1705 of the hollowed circular surface is pressed into the bottom of the circular sinking platform 1803 of the base to be fixed, and the outer ring is directly attached to the surface of the base. The flexible circuit board 17 is provided with a protruding external power supply end (not labeled) which extends to the external power supply through the signal source groove 101 of the housing 1, and the external power supply end is provided with 6 signal source interfaces 1701a, 1701b, 1702a, 1702b, 1703a, 1703 b. Where 1701a and 1701b are the X-direction coil current inputs; 1703a and 1703b are Y-direction coil current inputs; 1702a and 1702b are Z-direction coil current inputs. The square groove 1802 of the base 18 is used for avoiding the connecting bridge, and one side of the square groove 1802, corresponding to the signal source interface, can also be used for fool-proofing.

In the first embodiment of the present invention, the Z-direction coil 7 is fixed to the inner ring of the flexible circuit board 17, the Z-direction coil 7 is cylindrical, the Y-direction coil 16 is fixed to the outer periphery of the Z-direction coil 7, the Y-direction coil 16 is a large rectangular coil, the X-direction coils 15a and 15b are fixed to both ends of the Y-direction coil 16 on the short side, and the X-direction coils are two small rectangular coils 15a and 15 b. The flexible circuit board 17 comprises an X-direction signal source interface, a Z-direction signal source interface and a Y-direction signal source interface; the X-direction signal source interface is correspondingly connected with the X-direction coil, the Y-direction signal source interface is correspondingly connected with the Y-direction coil, and the Z-direction signal source interface is correspondingly connected with the Z-direction coil. The Z-direction coil 7 provides Z-direction drive, and the corresponding signal sources are 1702 a-1702 b; the small rectangular coils 15a and 15b are connected in series and then linked with the signal ports 1701 a-1701 b, and the small rectangular coils provide driving force in the X direction as a whole; the large rectangular coil provides driving force in the Y direction, and the corresponding signal sources are 1703 a-1703 b. Z direction coil 7 welds on flexible circuit board middle part fretwork disc, and flexible circuit board connects the electric pattern with the middle part fretwork disc of connecting bridge connection, and this structure is convenient for bend the disc part that has welded Z direction coil and sink circular heavy platform 1803 terminal surface laminating fixedly with the vibrator base, makes Z direction coil just to Z direction drive magnetite, produces Z direction electromagnetic force under the on-state. Simultaneously, an effective vibration space is provided for the downward vibration of the Z-direction vibration component. The magnets correspond to the coil groups, and Lorentz force is formed between the magnets and the coil groups when the current type passes through the coil, so that the XY-direction vibrating block is pushed to move, and the vibrating action is completed. A round hole 1103 is formed in the middle of the XY-direction vibrating block, the round hole 1103 is used for avoiding a space needed by Z-direction vibration, and the Y-direction coil surrounds the round hole.

Referring to fig. 7 to 11, the XY-direction vibration block 11 is fixed and suspended in the accommodating space by the S-shaped spring 13, one end of the S-shaped spring 13 is fixed to a short side of the XY-direction vibration block 11, and the other end of the S-shaped spring 13 is fixed to an inner wall of a side surface of the casing 1. The XY-direction vibrating mass 11 is suspended between the casing and the base by being fixed by 2S-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 2S-shaped springs 13 pull the XY-direction vibrating block 11 to suspend the XY-direction vibrating block in the middle.

Referring to fig. 9, the S-shaped spring 14 is a thin plate made of stainless steel. The S-shaped spring 14 comprises a first straight edge 1401, a second arc 1402, a third arc 1403, a fourth straight edge 1404 and a fifth straight edge 1405, wherein the first straight edge 1401 is fixed on the short side of the XY-direction vibration block 11, the second arc 1402 and the third arc 1403 form an S-shaped structure, the S-shaped structure performs vibration buffering in opposite directions, the fourth straight edge 1404 is a main elastic structure, an energy transmission mechanism is adopted, and the fifth straight edge 1405 is fixed on the inner wall of the side face of the machine shell 1. The XY direction vibration block 11 is integrally suspended between the machine shell and the base through the S-shaped spring 13, a rectangular groove 1102 avoiding the S-shaped spring 14 is formed in the side face of the long side of the XY direction vibration block, the rectangular groove 1102 is used for avoiding the S-shaped springs 14 a-14 b, the horizontal vibration block is made of tungsten alloy, the first straight side 1401 is fixedly welded with the wall face of the groove 1102, and the fifth straight side 1405 is fixedly welded with the inner wall of the machine shell 1 on the short side of the XY direction vibration block 11.

Referring to fig. 1 and 7, an XY-direction magnetic shield 9 is fixed to an upper end of the XY-direction vibrating block 11, the XY-direction magnetic shield 9 is used to optimize a magnetic circuit, and the XY-direction magnetic shield 9 is integrally fixed to an upper end of the horizontal vibrating block to shield a multi-stage magnet magnetic circuit and optimize the magnetic circuit.

The upper end of the XY direction vibrating block 11 is fixed with the noise reduction anti-collision foam 10, the noise reduction anti-collision foam 10 is annular, the noise reduction anti-collision foam 10 is fixed in an annular step 1104 at the upper end of the horizontal vibrating block, and the noise reduction anti-collision foam 10 effectively avoids collision and noise generation of the XY direction vibrating block 11 and the Z direction vibrating block 3.

Referring to fig. 3 to 6, the Z-direction vibrating mass 3 is fixed and suspended in the accommodating space by the upper and lower springs, the 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, the 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 circular sinking platform 1803 of the base 18, that is, the lower spring outer ring is fixedly connected to the boss of the base, and the upper and lower springs support the Z-direction vibrating mass and keep vertical, thereby providing necessary conditions for Z-direction resonance.

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 spring wires of the first spring 2 in the Z direction are distributed counterclockwise, the spring wires of the second spring 8 in the Z direction are distributed clockwise, the extending directions of the first spring and the spring wires of the second spring are opposite, and the first spring wires in the Z direction can be also adjusted to be distributed clockwise, and the second spring wire in the Z direction is distributed counterclockwise. As shown in fig. 3, three first spring wires 203 are disposed between the first spring inner 202 and the first spring outer 201, and the three first spring wires 203 are uniformly distributed in a spiral manner to provide a Z-direction elastic structure. As shown in fig. 6, three second spring wires 803a to 803c are arranged between the second spring inner coil 802 and the second spring outer coil 801 in the Z direction, and the three spring wires are uniformly spirally distributed to provide a Z-direction elastic structure.

Referring to fig. 4, the Z-direction vibrating mass 3 has air vents, in this embodiment, three air vents 301a to 301c are provided, the bottom of the Z-direction vibrating mass 3 is provided with a groove, i.e., a Z-direction vibrating mass groove 302, and the Z-direction vibrating mass groove 302 is used for fixing the magnetic conductive 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; a step part (not marked) is arranged at the edge of the upper end face 304 of the Z-direction vibrating block and is fixed with the first spring inner ring in the Z direction, a groove is arranged at the central position of the upper end face 304 of the Z-direction vibrating block, namely a magnetic fluid groove 305 of the Z-direction vibrating block, and the magnetic fluid groove 305 of the Z-direction vibrating block 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.

Referring to fig. 5, the magnetic conductive shell 4 is embedded in the Z-direction vibrating block groove 302, the Z-direction driving magnet 5 is fixed inside the magnetic conductive shell 4, the Z-direction antimagnetic leakage sheet 6 is adhered to the end face of the Z-direction driving 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 coil 7 is a Z-direction coil, the Z-direction coil is cylindrical, and the bottom end of the Z-direction coil is fixed on the FPCB.

The Z-direction vibrating block is of a T-shaped structure, a circular sinking groove is formed in the circular face of the upper portion of the vibrating block, the groove is used for containing magnetic fluid, and the effect of damping and noise reduction is achieved when the vibrating block collides 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 downwards provided with a ladder-shaped table top which is used for placing and fixing a 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.

Referring to fig. 16, the overall XYZ vibrator is rectangular, and the base is designed with a circular sinking platform structure to provide an effective space for the Z-directional vibrating mass to vibrate downwards, and meanwhile, the FPCB plate with the Z-directional coil welded thereon is conveniently hollowed out and fixed to the circular sinking platform. 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. Referring to fig. 17, in the sectional view along the sectional line a, the lower spring outer ring is fixedly connected to the boss of the base, that is, the second spring outer ring 801 is fixed to the boss of the circular sinking platform 1803 of the base 18, and the center of the circular sinking platform of the base is designed with a noise reduction hole for reducing the interference of the air resistance to the Z-direction vibration component during 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 (10)

1. The XYZ three-direction vibrator 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;

   a first magnet assembly and a second magnet assembly are embedded in the XY-direction vibrating block, the first magnet assembly and the second magnet assembly are in symmetrical structures respectively by taking the round hole as the center, and coils are arranged in the directions of the first magnet assembly and the second magnet assembly corresponding to the base; a magnetic conduction shell is arranged at the bottom of the Z-direction vibrating block, a Z-direction driving magnet is fixed in the magnetic conduction shell, and a coil is arranged between the magnetic conduction shell and the Z-direction driving magnet; the coil is electrically connected with the flexible circuit board, and the flexible circuit board is arranged on the base.
2. 2. The XYZ three-direction vibrator according to claim 1, wherein: the XY direction vibrating block is a cuboid, the first magnet assemblies are embedded at two ends of the short side of the XY direction vibrating block in parallel, and the second magnet assemblies are embedded in the middle of the first magnet assemblies.
3. 3. The XYZ three-direction vibrator according to claim 2, wherein: the first and second magnet assemblies are monopole magnets.
4. 4. The XYZ three-direction vibrator according to claim 3, wherein: the first magnet assembly is 2 groups of unipolar magnets, the second magnet assembly is 1 group of unipolar magnets, and each group of magnets consists of N, S poles of two magnets and corresponds to one coil.
5. 5. The XYZ three-direction vibrator according to claim 3, wherein: the number of the first magnet assemblies and the number of the second magnet assemblies are respectively 2.
6. 6. The XYZ three-direction vibrator according to claim 4, wherein: the first magnet assemblies correspond to 2X-direction coils which are connected in series, the number of the second magnet assemblies corresponding to the Y direction is 1, and the Y-direction coils surround the periphery of the circular hole.
7. 7. The XYZ three-direction vibrator according to claim 4 or 5, wherein: the second magnet assembly corresponds to 2Y-direction coils which are connected in series, and the Y-direction coils are arranged on two sides of the round hole.
8. 8. The XYZ three-direction vibrator according to claim 1, wherein: the flexible circuit board comprises an inner ring connected with the Z-direction coil and an outer ring connected with the XY-direction coil, the inner ring is a hollowed circular surface, the circular surface of the inner ring and the plane of the outer ring are arranged in parallel at intervals, and the inner ring and the outer ring of the flexible circuit board are electrically connected through a connecting bridge.
9. 9. The XYZ three-direction vibrator according to claim 8, wherein: and a Y-direction coil is fixed on the periphery of the Z-direction coil, and X-direction coils are fixed at two ends of the short side of the Y-direction coil.
10. 10. The XYZ three-direction vibrator according to claim 8, wherein: the flexible circuit board comprises an X-direction signal source interface, a Z-direction signal source interface and a Y-direction signal source interface; the X-direction signal source interface is correspondingly connected with the X-direction coil, the Y-direction signal source interface is correspondingly connected with the Y-direction coil, and the Z-direction signal source interface is correspondingly connected with the Z-direction coil.

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