WO2015032012A1 - 垂直线性振动电机 - Google Patents
垂直线性振动电机 Download PDFInfo
- Publication number
- WO2015032012A1 WO2015032012A1 PCT/CN2013/001048 CN2013001048W WO2015032012A1 WO 2015032012 A1 WO2015032012 A1 WO 2015032012A1 CN 2013001048 W CN2013001048 W CN 2013001048W WO 2015032012 A1 WO2015032012 A1 WO 2015032012A1
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- WIPO (PCT)
- Prior art keywords
- magnet
- plate
- magnetic
- yoke
- fixed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
Definitions
- the present invention relates to a motor, and more particularly to a vertical linear vibration motor.
- the vertical linear vibration motor of the present invention is produced by an electromagnetic field generated by a coil by a vibration component fixed between the casing and the frame. a forced vibration relative to the vertical direction of the bottom surface of the base; when the predetermined frequency of the electromagnetic field is equal to the natural frequency of the vibration component, resonance occurs, and the vertical linear vibration motor of the present invention maximizes the internal space of the motor for vibration
- the assembly has sufficient weight and produces maximum vibration amplitude in space.
- the vertical linear vibration motor of the present invention is designed by the unique structure of the sheet elastic member. Achieving a stable vibration waveform and a simplified motor structure; the optimized design of the local stress of the chip elastic element allows the motor to have an extended life. Background technique
- the invention is mainly applied to a device that needs to generate vibration after emitting a signal, for example, in the field of wireless mobile communication devices, touch screen feedback technology, adult health care products and the like.
- the vibration motor is a component that converts electrical energy into mechanical energy by using the principle of generating electromagnetic force.
- the linear vibration motor is a vibration motor that generates a vibration force in a one-dimensional direction.
- the bottom surface of the motor base is a horizontal reference datum
- the vertical linear vibration The motor is a linear vibration motor that generates a vibration force in a direction perpendicular to the bottom surface of the motor frame and is a horizontal reference datum.
- the horizontal linear vibration motor is a linear vibration motor that generates a vibration force in a direction parallel to the bottom surface of the motor frame as a horizontal reference datum. .
- the flat type conventional vibration motor 1 includes a stator assembly 101, a rotor assembly 102 rotatably assembled around a shaft 103, and a casing 104 for accommodating the stator assembly 101 and the rotor assembly 102;
- the stator assembly 101 has a circle a base 105 in the form of a plate, A lower substrate circuit component 106 attached to the upper surface of the base 105, a pair of brushes 107 attached to the lower substrate circuit component 106, a ring magnet 108 concentrically mounted on the upper surface of the base 105 around the lower substrate circuit component 106, and a vertical
- the fixed shaft 103 is mounted at the center of the base 105; the rotor assembly 102 is rotatably disposed around the shaft 103, having a bearing 109, a coil winding 1 10, a weight 11 1 , an injection molded insulating material 12 12 , an upper substrate circuit component 1
- the rotor assembly 102 rotates about the axis 103 due to the interaction between the electric field caused by the current of the coil winding 110 and the magnetic field caused by the magnet 108 mounted to the upper surface of the housing 105.
- the rotor assembly 102 rotates every revolution, and the contact between the brush 107 and the sheet of the commutator 1 14 that is in contact with the brush 107 continuously changes, causing the polarity of the power source to continuously change, and the current after rectification is supplied to
- the coil windings 110 of the rotor assembly 102 are placed to produce the same directional rotational force. Therefore, when continuously rotating, the rotor assembly 102 having the weight 1 1 1 generates centrifugal force to cause mechanical vibration of the motor 1.
- the cylindrical conventional vibration motor 2 is a cross-sectional view of a cylindrical conventional vibration motor (or a hollow cup conventional vibration motor) 2.
- the cylindrical conventional vibration motor 2 includes a stator assembly 201 and a rotor assembly 202.
- the stator assembly 201 has a casing 203 and a base 204 fixed to the bottom end of the casing 203.
- the casing 203 has a hollow cup shape and a hollow cylinder.
- the body magnet 205 is concentrically mounted to the outside of the inner hollow wall of the casing 203, and at the same time, two bearings 206 are respectively attached to both ends of the inner hollow wall of the casing 203, and the inside of the casing 204 has a pair of brushes 207 fixed thereto.
- the brush 207 is connected to the commutator 208 and the power supply lead 209 to supply a voltage thereto:
- the rotor assembly 202 has a weight 210 mounted in an unbalanced position, a fixing member 211, a connecting block 210, and a shaft 212 of the fixing member 211 a commutator 208 fixedly attached to one side of the fixing member 211 and divided into a plurality of segments, and a rotating coil winding 213 fixed to the fixing member 211, and the inner diameter of the rotating coil winding 213 is larger than that of the hollow cylindrical magnet The outer diameter of 205.
- the above-described cylindrical conventional vibration motor 2 is usually supplied with a ri pressure to the rotating coil winding 213 by the commutation of the brush 207 and the commutator contact 208 to generate a rotational force for rotation.
- the stator assembly 201 of the weight 210 of the equilibrium position generates a centrifugal force, thereby causing mechanical vibration of the motor 2.
- the bearing of the rotor assembly when driving a motor having the above two structures, the bearing of the rotor assembly generates mechanical friction and wear when the shaft surrounding the stator assembly (or the shaft of the rotor assembly is in the bearing of the stator assembly) is rotated for a long time;
- the brush passes through a small gap between the sheets of the commutator, mechanical friction, electric spark and wear are generated therein, thereby generating foreign matter and shortening the life of the motor: due to the mutual contact between the components and
- the relative motion generated results in an increase in the start-up time and braking time of the motor, reducing the high quality application of touch feedback technology.
- Fig. 3 is a cross-sectional view showing a structure 3 of a vertical linear vibration motor.
- the vertical linear vibration motor structure-3 includes a vibration assembly 301 and an excitation assembly 302.
- the vibration assembly 301 includes: a casing 303 having a space defining a predetermined size; a vertically magnetized magnet 304 having a plate 305 mounted on a lower surface of the magnet 304; a yoke 306 mounted on an upper surface of the magnet 304 to form a magnetic circuit;
- the element 307 is mounted between the casing 303 and the yoke 306 to vertically vibrate the vibrating body including the weight 308 mounted to the yoke 306.
- the excitation assembly 302 includes: a base 309 for closing a lower opening of the casing 303, the upper surface of the base 309 having a substrate circuit component 311 connected to the vibration coil 310 for providing power, the vibration coil 310 being embedded in A magnetic ic gap is formed between the circumference of the side wall of the magnet 304 and the electrode plate 305 and the inner side wall of the yoke 306, and the damping element 312 is concentrically attached to the upper surface of the base 309.
- the upper side magnetic fluid 313 is applied to the upper surface of the elastic member 307 corresponding to the magnet 304, and is fixed at an appropriate position by the magnetic flux leaking from the magnet 304; the casing 303 has at least one injection hole formed by perforating the hole And the inner diameter of the injection hole is smaller than the outer diameter of the magnet 304; the injection hole is closed by the tape member 314 attached to the casing 303.
- the lower side magnetic fluid 315 is applied to the circumference of the magnet 304 in combination with the pole piece 305, and the lower side magnetic fluid 315 is just in contact with the inner wall of the vibrating coil 310 to minimize system residual vibration.
- Fig. 4 is a three-dimensional view of the elastic member 307 used in the structure of the vertical linear vibration motor.
- the elastic member 307 is a conical spring, and includes: a fixing ring having an upper end fixed to a closed lower surface of the casing 303; and a plurality of elastic arms connected to the fixing ring at one end for generating an elastic force;
- the fixed disk is attached to the other end of the resilient arm while being fixed to the upper surface of the yoke 306 or to the upper surface of the weight 308.
- the driving of the above-structured vertical linear vibration motor structure-3 will be performed in such a manner that when power is applied from the external power source to the vibration coil 310, a periodically varying current is induced in the vibration coil 310 at the neodymium magnet 304.
- the vibrating body In the magnetic field generated by the magnetic circuit composed of the plate 305 and the yoke 306, the vibrating body generates a reverse electromagnetic force equivalent to the periodically varying electromagnetic force generated by the vibrating coil 310, and is generated in the elastic element 307. Under the combined force of the elastic forces, the vibration is vertically forced, wherein the vibrating body including the magnet 304, the plate 305, the yoke 306, and the weight 308 is suspended in the casing 303 by the elastic member 307.
- the upper side magnetic fluid 313 on the upper portion of the vibrating body is continuously received by the elastic member 307 and the inner wall of the casing 303.
- the surface is pressed, and during the pressing, the upper magnetic fluid 313 may ooze out from the upper surface of the casing 303 and the gap of the tape 314.
- the loss of the magnetic fluid is reduced, and the vertical vibration displacement of the vibrating body reaches or exceeds a predetermined maximum value, and the vibrating body including the elastic member 307 is in direct contact with the casing 303 of the upper structure to generate contact noise (Noi se touch This contact noise is the main source of noise associated with the reduction of the upper magnetic fluid during vertical vibration.
- Figure 5 is a cross-sectional view of a vertical linear vibration motor structure 2-4.
- the vertical linear vibration motor structure 2 includes a vibration assembly 401 and an excitation assembly 402.
- the excitation component 402 includes: a housing having a space defining a predetermined size 403; a vertically magnetized magnet 404 having a plate 405 mounted on a lower surface of the magnet 404; an upper surface of the magnet 404 is concentrically mounted in an annular convex groove of an inner wall of the upper surface of the casing 403, and the annular projection is concave
- the inner circumference of the groove is slightly larger than the outer diameter of the magnet 404.
- the vibrating assembly 401 includes: a base 406 for closing the lower opening of the casing 403: an elastic member 407 is mounted between the base 406 and the lower surface of the weight 408 to vertically vibrate the yoke 409 including the mounting to the weight 408
- the vibrating body; the weight 408 is formed with a center hole having a locking groove, and the yoke 409 has a locking jaw formed outward at a lower end thereof, so that when the yoke 409 is inserted into the weight 408 through the center hole, the yoke 409 The latching pawl is placed on the locking groove of the center hole to prevent the weight 408 from being separated.
- the latching jaw is located above the lower surface of the weight 408; the vibrating coil 410 is mounted on the yoke 409 In the center hole, a lower surface of the latching claw of the yoke 409 is attached with a substrate circuit component 41 1 connected to a terminal of the vibration coil 410 for supplying power.
- the substrate-circuit-element 411 includes: a fixed disk having a latching claw or a lower surface of the weight 408 fixed to the yoke 409, at least one coiled conductive circuit, one end of which is connected to the fixed disk, and the other end is connected to the attached machine
- the terminal 406 is used on the terminal for supplying power.
- a damping element 412 is concentrically attached to the lower surface of the fixed disk of the substrate circuit component 41 1 .
- the magnetic fluid 413 is applied to the circumference of the magnet 404 in combination with the pole piece 405, and the magnetic fluid 413 is just in contact with the inner wall of the vibration coil 410 to minimize the residual vibration of the system, and the inner circumference of the vibration coil 410 is slightly larger than the magnet 404 and the pole piece.
- Fig. 6 is a three-dimensional view of the elastic member 407 used in the structure of the vertical linear vibration motor.
- the elastic member 407 is a conical spring, and includes: a fixing ring having a lower end fixed to an upper surface of the base 406; and a plurality of elastic arms connected to the fixing ring at one end for generating an elastic force; a disk, coupled to the other end of the resilient arm, fixed to the lower surface of the weight 408 or to the lower surface of the latching jaw of the yoke 409, the fixed disk having an opening formed by perforating it for exposing the yoke The center hole of the 409.
- the above-described vertical linear vibration motor structure 2 generally generates a magnetic field by a magnetic circuit composed of a neodymium magnet 404, a plate 405, a yoke 409, and a casing 403, and when power is applied
- the vibrating body is forcedly vibrated, wherein the vibrating coil 410, the fixed disc of the substrate circuit component 411, the damping element 412, the yoke 409, and the weight 408 are included.
- the vibrating body is supported by the upper surface of the base 406 by the elastic member 407.
- the elastic members of the above-mentioned vertical linear vibration motor structure 3 and 2 are limited by the design and processing technology, and the height of the elastic members may be different after the forming, which may cause the asymmetry of the upper and lower vibration displacements; Moreover, the parallelism of the fixing plate of the elastic member with respect to the fixing ring may also be differently distributed.
- the lower surface of the vibrating body may have a certain inclination angle with respect to the upper surface of the bracket or the lower surface of the inner wall of the casing. S straight reciprocating motion will cause mechanical contact between the sidewall of the weight and the inner wall of the casing to produce contact noise (Noise touch), which is related to the poor parallelism of the elastic component itself during vertical vibration.
- the elastic elements of the vertical linear vibration motor structure- 3 and the structure 2 are conical springs. Due to the inherent properties of the conical spring, as shown in FIG. 7, the upper surface of the fixing plate of the elastic element is in an equilibrium position. With reference to the reference plane, the fixing ring is fixed, the elastic force generated when the fixed disk moves at a constant speed on one side opposite to the fixed ring (relative force is pressure) and the elastic force generated when moving to the opposite side of the opposite fixed ring (relative action) Force is tension) is nonlinearly symmetric. Therefore, the acceleration received by the vibrating body in the vertical reciprocating motion is asymmetrical, and an asymmetrical vibration waveform is exhibited in the period. This characteristic reduces the stability of the vibration motor, and at the same time increases the manufacturing difficulty and reduces the production yield.
- Fig. 8 is a cross-sectional view showing the structure 3 of the vertical linear vibration motor.
- the vertical linear vibration motor structure 3 includes a vibration component 501 and an excitation component 502.
- the vibration assembly 501 includes: a casing 503 having a space defining a predetermined size; a magnet 504 vertically magnetized, having a plate 505 mounted on a lower surface of the magnet 504; a yoke 506 mounted on an upper surface of the magnet 504 to form a magnetic circuit;
- the support member 507 and the lower support member 508 just support at least one elastic member 509 in the casing 503, and the fixed disk of the elastic member 509 and the weight 510 are connected to vertically vibrate the yoke 506 including the inner space of the weight 510.
- the upper damping element 51 1 is concentrically attached to the upper surface of the inner wall of the casing 503.
- the excitation assembly 502 includes: a housing 512 for closing the lower opening of the housing 503 and supporting the lower support member 508, the upper surface of the housing 512 having a substrate circuit component 514 connected to the terminal of the vibration coil 513 for providing power,
- the vibrating coil 513 is embedded in the magnetic ic gap between the circumference of the side wall of the magnet 504 and the plate 505 and the inner side wall of the yoke 506, and the lower damping element is concentrically attached to the upper surface of the base 512. 515.
- the magnetic fluid 516 is applied to the circumference of the magnet 504 in combination with the plate 505, and the magnetic fluid 516 is just in contact with the inner wall of the vibrating coil 513 to minimize system residual vibration.
- Fig. 9 is a three-dimensional view of the elastic member 509 used in the structure 3 of the vertical linear vibration motor.
- the elastic member 509 is a leaf spring, comprising: a fixing ring supported by the annular upper supporting member 507 and the annular lower supporting member 508 in the casing 503; and a plurality of elastic arms, one end of which is fixed to the fixed a ring for generating an elastic force; a fixed disk attached to the other end of the elastic arm while being fixed to the upper surface of the weight 510, the fixed disk having an opening formed by punching it.
- the driving principle is the same as that of the vertical linear vibration motor structure 3, and will not be described here.
- the above-mentioned vertical linear vibration motor structure 3 has a large number of component parts, which inevitably increases the material cost of the component; further, the chip elastic component 509 and the upper support component 507 are generally connected by laser welding. Supported by the lower support member 508 in the casing 503, this structure increases the difficulty of assembly of the machine, and reduces the stability of the motor structure when the machine produces a drop impact.
- the elastic element 509 of the vertical linear vibration motor structure 3 is a leaf spring, and a plurality of elastic arms are circumferentially arranged between the fixed ring and the fixed disk, and the elastic arm extends in a unidirectional arc shape, due to space volume limitation.
- the extension length of the elastic arm is limited to a certain extent, thereby affecting the elastic modulus of the elastic member and the vibration amplitude of the vibrating body; when a large vibration amplitude is to be achieved, the elastic arm will have a large displacement, which will cause elasticity.
- An object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a vertical linear vibration motor having a small number of components and a simple linear structure, stable performance, and improved product quality.
- a vertical linear vibration motor comprising a vibration component, an excitation component and a casing buckle integrated body, wherein the casing has a cavity cylindrical shape, a space therein, a side wall having a groove, and a closed upper portion a surface and an open lower surface for covering the vibrating assembly and the excitation assembly located therebelow;
- the vibrating assembly comprising an elastic member, a magnetic gas circuit and a weight, the magnetic circuit comprising the yoke and being fixed to the inner surface of the yoke a magnet that is perpendicularly magnetized, and a plate that is fixed to a lower surface of the magnet, the yoke is a hollow cylinder, the upper portion of which closes the lower opening, and the lower end of the mouth is provided with an outwardly formed locking claw, and the magnet is perpendicularly magnetized forever
- the magnetic cylinder itself has high magnetic energy, the upper and lower portions have opposite polarities, the upper surface of the magnet is coupled to the center of the closed inner surface of the upper portion of the
- the block is a hollow cylinder which is coupled to the outer periphery of the yoke, the inner diameter of which forms a tight fit with the outer diameter of the yoke, and the lower surface of which is coupled to the locking jaw of the yoke and the fixed disk of the elastic member, the upper surface of the weight is higher than The upper surface of the upper portion of the yoke is closed, the outer diameter of the weight is smaller than the inner diameter of the casing, and the outer space of the lower portion of the weight has an annular space groove, and the upper damping element and the lower damping element are repulsive pieces, and the yoke
- the upper surface is provided with an upper damping element, and a lower damping element is mounted on the lower surface of the plate.
- the excitation component includes a base and a vibration coil fixed to the upper surface of the base.
- the base is a substrate component, and the upper strap is attached thereto.
- the substrate circuit component having the external terminal may also be a fiber substrate circuit component, and the vibration coil is coupled to the upper surface of the base and the substrate circuit component, directly under the magnetic circuit, embedded in the magnetic gap, and the magnetic fluid is There are certain viscosity a colloidal fluid, the magnetic fluid is attached to the combined circumference of the lower surface of the magnet and the plate, and the elastic element is a leaf spring, comprising: a fixed end, having an upper surface fixed to the outer edge of the base and a recess of the side wall of the casing a terminal of the surface; a plurality of serpentine elastic arms, one end of which is connected to the terminal of the fixed end, the fixing plate is connected to the other end of the serpentine elastic arm, and is fixed to the lower surface of the weight, and the fixing plate is provided with a hole, A hole is formed in the hole, and the
- the vertical linear vibration machine wherein the magnetic circuit can also include: a yoke, a plate, and a magnet.
- a vertical linear vibration motor includes a vibration component, an excitation component, a casing and a magnetic fluid, wherein the vibration component, the excitation component and the casing buckle are integrated, wherein the casing is a cylindrical cavity having a cavity therein a space, the side wall is grooved, and has a closed upper surface and an open lower surface for covering the vibration component and the excitation component located therebelow, the vibration component comprising an elastic component, a magnetic gas circuit and a weight, the magnetic gas
- the circuit includes a bracket and a magnet fixed to the inner wall surface of the bracket to generate a perpendicular magnetization, an upper plate fixed to the upper surface of the magnet, and a lower plate fixed to the lower surface of the magnet, the bracket has a hollow cup shape, and the upper portion and the lower portion are both smashed
- the lower outer side mouth portion is provided with an outwardly formed locking claw
- the magnet is a vertically magnetized permanent magnet cylinder, which has high magnetic energy itself, and the upper and lower portions have opposite polarities which generate
- the weight is a non-magnetic hollow cylinder, and is coupled to the outer periphery of the hollow outer wall of the bracket, and the inner diameter thereof is tightly matched with the outer diameter of the hollow outer wall of the bracket, and the lower surface thereof is coupled to the bracket
- the locking jaws and the fixing plate of the elastic member, the upper surface of the weight is higher than the annular upper surface closed by the upper portion of the bracket, and the end difference is formed; the outer diameter of the weight is smaller than the inner diameter of the casing, and the outer portion of the lower portion of the weight has
- the annular space groove, the upper damping element and the lower damping element are repulsive sheets, and the upper damping plate is mounted on the annular upper surface of the bracket and the upper surface of the upper plate, in the lower plate
- the lower surface is provided with a damping element, and the excitation component
- the base is a substrate component, the substrate circuit component with the external terminal is attached thereto, and the vibration coil is coupled to The upper surface of the base and the circuit component of the substrate is located directly under the magnetic circuit, and is embedded in the magnetic gap.
- the magnetic fluid is a gel-like fluid having a certain viscosity, and the magnetic fluid is attached to the hollow inner wall of the bracket, and the elastic component is a piece.
- the spring includes a fixed end, a terminal having a lower surface fixed to an outer surface of the outer edge of the base and a lower surface of the groove of the side wall of the casing, and a plurality of serpentine elastic arms, one end of which is connected to the terminal of the fixed end, the fixed disc is connected to The other end of the serpentine elastic arm is fixed to the lower surface of the weight, and the fixing plate is provided with a hole, and an opening is formed in the hole.
- the serpentine elastic arm is circumferentially arrayed between the fixed end terminal and the fixed disc, and the serpentine elastic arm is once Or one or more curved arc extensions, wherein the one-way curved elastic arms of the serpentine elastic arms are generally designed to be equiangular arcs.
- the vertical linear vibration motor wherein the magnetic circuit can also include a bracket, an upper plate, a lower plate, and a magnet.
- the beneficial effects of the present invention are that the vertical linear vibration motor of the present invention maximizes the internal space of the motor so that the vibration assembly can have sufficient weight and generate a maximum vibration amplitude in the space. More specifically, in a vertical linear vibration motor that does not use a conventional vibration motor mechanism based on a shafting structure and a brush commutator structure, the vertical linear vibration motor of the present invention is designed by the unique structure of the sheet elastic member. Achieving a stable vibration waveform and a simplified motor structure; the optimized design of the local stress of the chip elastic element allows the motor to have an extended life.
- Figure 1 is a cross-sectional view of a flat type conventional vibration motor
- Figure 2 is a cross-sectional view of a cylindrical conventional vibration motor
- Figure 3 is a cross-sectional view showing the structure of a vertical linear vibration motor
- Figure 4 is a three-dimensional view of the elastic member used in the structure of the vertical linear vibration motor
- Figure 5 is a cross-sectional view showing the structure of a vertical linear vibration motor
- Figure 6 is a three-dimensional view of the elastic member used in the structure 2 of the vertical linear vibration motor
- Figure 7 is a graph of pressure and tensile force when the elastic element of the vertical linear vibration motor structure 1 and the structure 2 are moved at different displacements;
- Figure 8 is a cross-sectional view showing the structure 3 of the vertical linear vibration motor
- Figure 9 is a three-dimensional view of the elastic member used in the structure 3 of the vertical linear vibration motor
- Figure 10 is a cross-sectional structural view showing a first embodiment of a vertical linear vibration motor according to the present invention.
- Figure 11 is an exploded three-dimensional view of a first embodiment of a vertical linear vibration motor in accordance with the present invention.
- Figure 12 is a three-dimensional view of a resilient member used in a first embodiment of a vertical linear vibration motor according to the present invention
- Figure 13 is a cross-sectional view showing a second embodiment of a vertical linear vibration motor according to the present invention.
- FIG 10 is a cross-sectional view showing a first embodiment of a vertical linear vibration motor according to the present invention.
- a vertical linear vibration motor 6 includes a vibration assembly 601, and the excitation assembly 602 and the casing 603 are snap-fitted together; This includes magnetic fluid 614.
- the casing 603 is characterized in that the casing 603 has a cylindrical shape with a predetermined thickness and has a predetermined thickness therein. There is a predetermined size of space, a groove having a predetermined height in the side wall, a closed upper surface and an open lower surface for covering the vibration assembly 601 and the excitation assembly 602 located thereunder.
- the vibration assembly 601 includes a resilient member 604, a magnetic circuit portion and a weight 605.
- the magnetic circuit portion includes a yoke 607 and a magnet 606 fixed to the inner surface of the yoke 607 to generate a perpendicular magnetization, and a plate 608 fixed to the lower surface of the magnet 606.
- the yoke 607 is substantially a hollow cylinder having an upper portion closed to the lower portion and a lower end opening portion in which an outwardly formed latching claw is disposed.
- the magnet 606 is a vertically magnetized permanent magnet cylinder which itself has a high magnetic energy of a predetermined size, the upper and lower portions thereof having opposite polarities, and generating a magnetic force of a predetermined magnitude.
- the upper surface of the magnet 606 is bonded to the center of the inner surface of the upper portion of the yoke 607 by a bonding material, and the plate 608 is bonded to the center of the lower surface of the magnet 606 by a bonding material.
- the plates 608 used in the above-described vertical linear vibration motor are generally circular, trigeminal or elliptical. More preferably, the bonding surface of the yoke 607 and the magnet 606 or the bonding surface of the plate 608 and the magnet 606 is uniformly provided with a print to increase the bonding force therebetween.
- the inner diameter of the yoke 607 is larger than the outer diameter of the magnet 606, and a magnetic ic gap of a predetermined size is formed between the inner surface of the yoke 607 and the outer surface of the magnet 606; more preferably, the yoke 607 and the plate 608 Both are made of a magnetically permeable material, so that the magnetic lines of force pass vertically through the interior of the magnet 606 and through the yoke 607 and the plate 608, resulting in maximum passage of the magnetic gap, ultimately forming a closed magnetic circuit.
- the lower surface of the plate 608 and the lower surface of the yoke 607 latching claw are substantially in the same plane.
- the weight 605 is a hollow cylinder made of a non-magnetic high-specific gravity material, and is bonded to the outer periphery of the yoke 607 by a bonding material, the inner diameter of which forms a tight fit with the outer diameter of the yoke 607, and the lower surface thereof is tightly coupled to the yoke 607.
- the locking jaws and the fixing plate 6043 of the elastic member 604 are disposed to prevent the weight 605 from being separated from the yoke 607; the upper surface of the weight 605 is slightly higher than the upper closed upper surface of the yoke 607 to form a predetermined size end
- the outer diameter of the weight 605 is smaller than the inner diameter of the casing 603, and has an annular space groove of a predetermined depth outside the lower portion of the weight 605, so that the snake does not contact the inner wall of the casing 603 and the elastic member 604 during vertical vibration.
- the elastic arm 6042 is vertically vibrated in the case of the shape.
- the upper damping element 609 and the lower damping element 610 are sheets made of a rubber material having a certain resilient force, and an upper damping member 609 is mounted on the upper surface of the yoke 607, and the upper damping element is mounted thereon.
- the damper element 610 is mounted on the lower surface of the plate 608 with the lower damper element 610, and the lower damper element 610 is formed on the lower surface of the plate 608.
- the optimum outer diameter is 70% to 80% of the outer diameter of the plate 608, and the upper damping element 609 and the lower damping element 610 function to limit the vibration amplitude of the vibration component 601 to be excessive with the upper surface of the casing 603 and the machine.
- Contact noise (Noi se touch) is generated on the lower surface of the seat 602.
- the excitation component 602 includes a base 611 and a vibration coil 612 fixed to an upper surface of the base 611.
- the base 611 is a substrate component to which a substrate circuit component 613 having an external terminal is attached, and the base 611 is generally made of a metal plate.
- the fiber substrate circuit component, the iron substrate circuit component or the ceramic substrate circuit can also be used. Component Instead of the base 611 and the substrate circuit component 613.
- the vibration coil 612 is bonded to the upper surface of the base 611 and the substrate circuit component 613 by a bonding material, is located directly under the magnetic circuit, is embedded in the magnetic gap, and generates a predetermined strength when the rated power is input.
- the vertical electromagnetic force ensures a smooth interaction between the magnetic field generated by the vibrating assembly 601 and the electric field generated by the vibrating coil 612 of the excitation assembly 602.
- the magnetic fluid 614 is a colloidal fluid made of a magnetic powder having a certain viscosity and stably and uniformly dispersed in a liquid.
- the magnetic fluid 614 is attached thereto by a magnetic flux leaking from the combined circumference of the lower surface of the magnet 606 and the plate 608 in such a manner that it is in contact with the inner wall of the vibrating coil 612 to minimize the residual vibration of the system.
- Figure 12 is a three-dimensional view of the elastic member 604 used in the first embodiment of the vertical linear vibration motor according to the present invention.
- the elastic member 604 is a leaf spring, comprising: a fixed end 6040, and a terminal 6041 having a lower surface fixed to the outer edge of the outer edge of the seat 611 and a recess of the side wall of the casing 603;
- the elastic arm 6042 has one end connected to the terminal 6041 of the fixed end 6040 for generating an elastic force;
- the fixed disk 6043 is connected to the other end of the serpentine elastic arm 6042, and is fixed to the lower surface of the weight 605, and the fixed disk 6043 Having an opening formed by perforating the opening, the inner wall of the opening abuts exactly with the locking jaw of the yoke 607, and the disk 6043 and the yoke 607 are fixed by the laser splicing elastic member 604 to close the annular contact surface of the claw;
- the serpentine elastic arm 6042 is circumferentially array
- the vibrating assembly 601 vibrates vertically linearly under the interaction of the magnetic force generated by the magnet 606 and the electromagnetic force generated by the coil assembly; the vibrating assembly 601 produces maximum vertical linearity when the input frequency of the electromagnetic force is equal to the natural frequency of the vibrating assembly 601 vibration.
- FIG 13 is a cross-sectional view showing a second embodiment of a vertical linear vibration motor according to the present invention.
- a vertical linear vibration motor 7 includes a vibration assembly 601, an excitation assembly 602, and a machine.
- the shell 603 is snap-fitted into one body; it includes a magnetic fluid 614.
- the casing 603 is characterized in that the casing 603 has a cavity cylindrical shape, has a predetermined thickness, has a predetermined size space therein, and has a groove of a predetermined height on the side wall, and is provided with a closed upper surface. The surface and the open lower surface are used to cover the vibrating assembly 601 and the excitation assembly 602 located thereunder.
- the vibration assembly 601 includes a resilient member 604, a magnetic circuit portion and a weight 605.
- the magnetic circuit portion includes a bracket 701 and a magnet 606 fixed to the inner wall surface of the bracket 701 to generate a perpendicular magnetization, and an upper plate 702 fixed to the upper surface of the magnet 606 and a lower plate 703 fixed to the lower surface of the magnet 606.
- the bracket 701 has a substantially hollow cup shape, the upper portion and the lower portion of which are open, and an outwardly formed locking claw is disposed at an opening portion of the lower end thereof.
- the magnet 606 is a permanent magnet cylinder that is perpendicularly magnetized, and has a high magnetic energy of a predetermined size, and the upper and lower portions thereof have It has the opposite polarity and produces a magnetic force of a predetermined size.
- the side wall of the magnet 606 is bonded to the hollow inner wall of the bracket 701 by a bonding material bonded to the center of the upper surface of the magnet 606 by a bonding material, and the lower plate 703 is bonded to the center of the lower surface of the magnet 606 by a bonding material.
- the bonding surface of the upper plate 702 and the magnet 606 or the bonding surface of the lower plate 703 and the magnet 606 are uniformly provided with a print to increase the bonding force therebetween.
- the inner diameter of the hollow inner wall of the bracket 701 is slightly larger than the outer diameter of the magnet 606, and a magnetic gap of a predetermined size is formed between the hollow outer wall of the bracket 701 and the hollow inner wall; more preferably, the bracket 701 is made of a non-magnetic material, Both the plate 702 and the lower plate 703 are made of a magnetically permeable material, so that the magnetic lines pass vertically through the inside of the magnet 606 and maximize through the upper plate 702 and the lower plate 703, resulting in maximum magnetic clearance, ultimately A closed geomagnetic circuit is formed.
- the upper surface of the upper plate 702 and the upper surface of the bracket 701 are substantially in the same plane, and the lower surface of the lower plate 703 and the lower surface of the locking claw of the bracket 701 are substantially in the same plane.
- the weight 605 is a hollow cylinder made of a non-magnetic high-specific gravity material, and is bonded to the outer periphery of the hollow outer wall of the bracket 702 by a bonding material, and the inner diameter thereof is tightly matched with the outer diameter of the hollow outer wall of the bracket 702, and the lower surface thereof is tightly coupled to
- the locking claw of the bracket 701 and the fixing plate 6043 of the elastic member 604 are disposed to prevent the weight 605 from being separated from the bracket 701; the upper surface of the weight 605 is slightly higher than the annular upper surface of the upper portion of the bracket 701 to form a predetermined size.
- the outer diameter of the weight 605 is smaller than the inner diameter of the casing 603, and has an annular space groove of a predetermined depth outside the lower portion of the weight 605, so as not to contact the inner wall of the casing 603 and the elastic member 604 during vertical vibration.
- the serpentine elastic arm 6042. vibrates vertically.
- the upper damping element 609 and the lower damping element 610 are sheets made of a rubber material having a certain resilient force, and the upper surface of the upper surface of the bracket 702 and the upper surface of the upper plate 702 are reduced. 2 ⁇
- the lower surface of the lower plate 703 is mounted with a lower damping element 610.
- the lower surface of the lower plate 703 is mounted on the lower surface of the lower plate 703.
- the optimal outer diameter of the lower damping element 610 is 70% to 80% of the outer diameter of the lower plate 703, and the upper damping element 609 and the lower damping element 610 function to limit the vibration amplitude of the vibration component 601 to be excessive.
- Contact noise is generated with the upper surface of the inner wall of the casing 603 and the lower surface of the casing 602.
- the excitation component 602 includes a base 611 and a vibration coil 612 fixed to an upper surface of the base 611.
- the base 61 1 is a substrate component to which a substrate circuit component 613 having an external terminal is attached, and the base 611 is generally made of a metal plate, and a fiber substrate circuit component, an iron substrate circuit component or a ceramic substrate can also be used.
- the circuit component replaces the base 61 1 and the substrate circuit component 613.
- the vibration coil 612 is bonded to the upper surface of the base 61 1 and the substrate circuit component 613 by a bonding material, is located directly below the magnetic circuit, is embedded in a magnetic ic gap, and is generated at a rated power input.
- a vertical electromagnetic force of a predetermined intensity is ensured to ensure a smooth interaction between the magnetic field generated by the vibrating assembly 601 and the electric field generated by the vibrating coil 612 of the excitation assembly 602.
- the magnetic fluid 614 is a gel-like fluid made of a magnetic powder having a certain viscosity and stably and uniformly dispersed in a liquid.
- the magnetic fluid 614 is attached to the hollow inner wall of the bracket 701 by the magnetic flux leaking from the combined circumference of the lower surface of the magnet 606 and the lower plate 703, and the amount of injection is just enough to contact the inner wall of the vibrating coil 612 to minimize the residual vibration of the system. .
- Figure 12 is a three-dimensional view of the elastic member 604 used in the first embodiment of the vertical linear vibration motor according to the present invention.
- the elastic member 604 is a leaf spring, comprising: a fixed end 6040, a terminal 6041 having a lower surface fixed to an outer edge of the housing 611 and a lower surface of the sidewall of the casing 603; a plurality of serpentine shapes
- the elastic arm 6042 has one end connected to the terminal 6041 of the fixed end 6040 for generating an elastic force;
- the fixed disk 6043 is connected to the other end of the serpentine elastic arm 6042 and fixed to the lower surface of the weight 605, and the fixed disk 6043 has An opening formed by perforating the opening, the inner wall of the opening just abuts the locking claw of the bracket 701, and the disk 6043 is fixed by the laser welding elastic member 604 and the bracket 701 closes the annular contact surface of the claw;
- the 6042 circumferential array is between the fixed end 6040 terminal 6041 and the
- the vibrating assembly 601 vertically linearly vibrates under the interaction of the magnetic force generated by the neodymium magnet 606 and the electromagnetic force generated by the coil assembly; the vibrating assembly 601 produces maximum vertical linearity when the input frequency of the electromagnetic force is equal to the natural frequency of the vibrating assembly 601 vibration.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/001048 WO2015032012A1 (zh) | 2013-09-06 | 2013-09-06 | 垂直线性振动电机 |
KR1020157008091A KR20160053837A (ko) | 2013-09-06 | 2013-09-06 | 수직 선형 진동 모터 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/001048 WO2015032012A1 (zh) | 2013-09-06 | 2013-09-06 | 垂直线性振动电机 |
Publications (1)
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WO2015032012A1 true WO2015032012A1 (zh) | 2015-03-12 |
Family
ID=52627664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2013/001048 WO2015032012A1 (zh) | 2013-09-06 | 2013-09-06 | 垂直线性振动电机 |
Country Status (2)
Country | Link |
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KR (1) | KR20160053837A (zh) |
WO (1) | WO2015032012A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021035829A1 (zh) * | 2019-08-28 | 2021-03-04 | 领先科技(东台)有限公司 | 一种线圈内嵌套铁芯的线性振动马达 |
US11031856B2 (en) * | 2018-02-28 | 2021-06-08 | Minebea Mitsumi, Inc. | Vibration actuator |
CN113346651A (zh) * | 2021-07-09 | 2021-09-03 | 金龙机电(东莞)有限公司 | 空心杯电机 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020204930A1 (de) | 2020-04-17 | 2021-10-21 | Mando Corporation | Rückholfeder zum Zurückziehen eines Bremsklotzes |
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CN2657275Y (zh) * | 2003-03-31 | 2004-11-17 | 冼文基 | 永磁直线振动电机 |
JP2005341771A (ja) * | 2004-05-31 | 2005-12-08 | Matsushita Electric Works Ltd | 振動型リニアアクチュエータ |
CN101404437A (zh) * | 2008-11-11 | 2009-04-08 | 天津三星电机有限公司 | 线性振动电机 |
CN102237773A (zh) * | 2010-04-26 | 2011-11-09 | Lg伊诺特有限公司 | 具有宽带的线性振动器 |
CN102522874A (zh) * | 2012-01-05 | 2012-06-27 | 王健 | 垂直线性振动电机 |
CN202488328U (zh) * | 2012-01-05 | 2012-10-10 | 王健 | 垂直线性振动电机 |
-
2013
- 2013-09-06 WO PCT/CN2013/001048 patent/WO2015032012A1/zh active Application Filing
- 2013-09-06 KR KR1020157008091A patent/KR20160053837A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2657275Y (zh) * | 2003-03-31 | 2004-11-17 | 冼文基 | 永磁直线振动电机 |
JP2005341771A (ja) * | 2004-05-31 | 2005-12-08 | Matsushita Electric Works Ltd | 振動型リニアアクチュエータ |
CN101404437A (zh) * | 2008-11-11 | 2009-04-08 | 天津三星电机有限公司 | 线性振动电机 |
CN102237773A (zh) * | 2010-04-26 | 2011-11-09 | Lg伊诺特有限公司 | 具有宽带的线性振动器 |
CN102522874A (zh) * | 2012-01-05 | 2012-06-27 | 王健 | 垂直线性振动电机 |
CN202488328U (zh) * | 2012-01-05 | 2012-10-10 | 王健 | 垂直线性振动电机 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11031856B2 (en) * | 2018-02-28 | 2021-06-08 | Minebea Mitsumi, Inc. | Vibration actuator |
WO2021035829A1 (zh) * | 2019-08-28 | 2021-03-04 | 领先科技(东台)有限公司 | 一种线圈内嵌套铁芯的线性振动马达 |
CN113346651A (zh) * | 2021-07-09 | 2021-09-03 | 金龙机电(东莞)有限公司 | 空心杯电机 |
Also Published As
Publication number | Publication date |
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KR20160053837A (ko) | 2016-05-13 |
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