WO2019203521A1 - Dispositif générateur de vibration linéaire horizontal - Google Patents

Dispositif générateur de vibration linéaire horizontal Download PDF

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Publication number
WO2019203521A1
WO2019203521A1 PCT/KR2019/004541 KR2019004541W WO2019203521A1 WO 2019203521 A1 WO2019203521 A1 WO 2019203521A1 KR 2019004541 W KR2019004541 W KR 2019004541W WO 2019203521 A1 WO2019203521 A1 WO 2019203521A1
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WO
WIPO (PCT)
Prior art keywords
magnet
stator
magnetic
auxiliary
generating device
Prior art date
Application number
PCT/KR2019/004541
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English (en)
Korean (ko)
Inventor
김효준
심순구
유한호
정경양
이원국
김승기
Original Assignee
자화전자(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 자화전자(주) filed Critical 자화전자(주)
Priority to CN201990000590.4U priority Critical patent/CN213305225U/zh
Publication of WO2019203521A1 publication Critical patent/WO2019203521A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • 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
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • 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
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/047—Vibrating means for incoming calls

Definitions

  • the present invention relates to a horizontal linear vibration generating device.
  • a horizontal linear vibration generating device used in a mobile phone or the like, in which a vibrator oscillates in a horizontal direction by an interaction between an electric field generated by a coil and a magnetic field by a magnet, generates vibration Relates to a device.
  • an eccentric rotation type vibration generating device has been commonly used as a vibration generating device used as a receiving device in a portable terminal.
  • this technique does not guarantee long life, is not fast response, and has limitations in implementing various vibration modes. Therefore, there is a problem in that the touch-operated smart phone does not meet the demand of the consumer in a rapidly popularized trend.
  • the linear vibration generator basically uses a primary vibrometer. To this end, a coil-shaped elastic body and a coil for vibrating the weight body are provided, and the weight body vibrates according to a frequency response characteristic predetermined by the elastic modulus of the weight body and the elastic body with a current applied to the coil.
  • Such a conventional linear vibration generating device is driven by an operation principle of generating vibration by oscillating the weight body by Lorentz force generated between the coil and the fixed magnet.
  • Lorentz force due to the structural limitations of the vibration generating device by Lorentz force, it is difficult to realize the characteristics such as the strength of vibration and the frequency band of vibration well.
  • the technical problem to be solved by the present invention is to improve the magnetic circuit structure of the permanent magnet so that the magnetic force is concentrated in the direction in which the electromagnetic force interaction is maximized, horizontal linear vibration improved performance, such as vibration characteristics and reaction speed (responsiveness) It is to provide a generator.
  • Another technical problem to be solved by the present invention is to provide a horizontal linear vibration generating device that can significantly reduce the external leakage magnetic flux without additional shielding structure by using the magnetic circuit characteristics according to the unique permanent magnet arrangement.
  • a stator including a coil mounted on a circuit board on an upper surface of the bracket and a yoke configured to surround the outer surface of the coil;
  • a vibrator configured to surround the stator, the vibrator having a linear movement in which a movement direction is periodically changed in a case along a first direction by interaction with the stator;
  • the vibrator includes a first and a second magnet group opposed to a second direction orthogonal to the first direction about a stator, and a weight body disposed adjacent to the first and second magnet groups,
  • the first and second magnet groups may include a central magnet magnetized so that the direction of the magnetic field is directed toward the stator, and a pair of magnetized pairs installed on both sides of the central magnet and magnetized such that the direction of the magnetic field is directed toward the central magnet.
  • a central magnet magnetized so that the direction of the magnetic field is directed toward the stator
  • a pair of magnetized pairs installed on both sides of the central magnet and magnetized such that the direction of the magnetic field is directed toward the central magnet.
  • a horizontal linear vibration generating device characterized in that the magnetic pole of the pair of auxiliary magnets and the central magnet inclined mutually inclined.
  • the central magnet may have an isosceles triangle shape in which the gap between the magnetic pole surfaces becomes narrower as it moves away from the stator.
  • the horizontal position of the vertex of the central magnet opposite the stator and the auxiliary magnet outer surface portion may be the same, or the vertex may be positioned closer to the stator than the outer surface portion.
  • the vertex of the central magnet opposite the stator may be configured to protrude further outward with respect to the second direction than the outer surface of the auxiliary magnet.
  • the length L2 of the side of the magnetic pole surface of the auxiliary magnet in contact with the central magnet is preferably at least 1/3 or more of the length L1 of the side of the magnetic pole surface of the central magnet.
  • the central magnet may have a conformal trapezoidal shape in which the gap between the magnetic pole surfaces becomes narrower as the central magnet moves away from the stator.
  • the horizontal position of the upper side and the auxiliary magnet outer surface of the central magnet opposite the stator may be the same, or the upper side may be configured to be closer to the stator than the outer surface.
  • the upper side of the center magnet opposite the stator may be configured to protrude further outward with respect to the second direction than the outer surface of the auxiliary magnet.
  • the length L2 of the side of the magnetic pole surface of the auxiliary magnet in contact with the central magnet is preferably at least 1/3 or more of the length L1 of the side of the magnetic pole surface of the central magnet.
  • the auxiliary magnets applied to the present invention may be composed of two magnets divided on the basis of a magnetic pole boundary surface perpendicular to each other and symmetric to the magnetic pole surface.
  • the direction may be configured as a second auxiliary magnet that is opposite to the magnetic field direction of the central magnet.
  • the first direction which is a term referring to a direction in the present invention, is a direction in which the vibrator vibrates in a case due to the interaction of a coil and a magnet, and the second direction may be a direction orthogonal to the first direction on a doyle plane. have.
  • the present invention may further include a pair of frames provided to mount the magnet group and the magnetic materials on the opposite side of the surface facing the stator, wherein the magnetic pole arrangement between the center magnet and the auxiliary magnets disposed adjacent to the frame side Magnetic shielding effect is exhibited according to the magnetic shielding is not required. Therefore, it is desirable to configure the frame with a nonmagnetic material that is advantageous in weight reduction and cost reduction.
  • the magnetic circuit characteristic characteristic of increasing the magnetic force on the side facing the stator
  • the unique permanent magnet array Hubach array
  • the mutual force between the magnetic force of the magnet and the magnetic force of the coil Aspiration, repulsion and thrust can be improved.
  • the effect of maximizing the vibration force of the vibration generating device and improving the reaction speed can be exerted.
  • FIG. 1 is a perspective view of a horizontal linear vibration generating device according to an embodiment of the present invention.
  • Figure 2 is an exploded perspective view of a horizontal linear vibration generating device according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of the linear vibration generating device of FIG. 1 as viewed from the A-A line direction.
  • FIG. 4 is a cross-sectional view of the linear vibration generating device of FIG.
  • FIG. 5 is an enlarged structural view of a main part for explaining a magnetic circuit of a horizontal linear vibration generating device according to an embodiment of the present invention.
  • FIG. 6 illustrates various modifications of a magnet group of structures in which magnetic force is increased on one side and canceled off on the other.
  • FIG. 9 is experimental data showing the magnetic flux distribution and magnetic field strength of each region of a magnetic circuit generally applied to a conventional linear vibration generating device.
  • 10 is experimental data showing the magnetic flux distribution and magnetic field strength of each region of the magnetic circuit applied to the linear vibration generating device according to the present invention.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • ... unit means a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. Can be.
  • the term “substantially” does not need to accurately achieve the recited characteristics, parameters or values, but includes tolerances, measurement errors, measurement accuracy limits and other elements known to those skilled in the art. It should be understood that the variation or change to be made and the characteristic to be excluded do not exclude the effect to be provided.
  • the portable terminal refers to a portable user device.
  • the present embodiment is a mobile phone, a palm sized personal computer (PC), a personal communication system (PCS), a personal digital assistant (PDA), a portable PC.
  • PC palm sized personal computer
  • PCS personal communication system
  • PDA personal digital assistant
  • HPC hand-held PC
  • smart phone wireless LAN (Local Area Network) terminal
  • laptop computer netbook
  • tablet PC tablet personal computer
  • a first direction is defined as a longitudinal direction of the vibration generating device in the drawing, specifically, a direction in which the vibrator vibrates with respect to the stator, and the second direction is a direction perpendicular to the first direction on the same plane. It is defined as the width direction of the vibration generating device.
  • FIG. 1 is a perspective view of a horizontal linear vibration generating device according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of the horizontal linear vibration generating device shown in FIG. 3 is a cross-sectional view of the linear vibration generator of FIG. 1 viewed from the line A-A
  • FIG. 4 is a cross-sectional view of the linear vibration generator of FIG. 1 viewed from the line B-B.
  • a horizontal linear vibration generating device is largely composed of a vibrator 10 and a stator 20.
  • the stator and the vibrator are relative to each other, and the stator 20 means a portion fixed to the vibrator 10, and the vibrator 10 means a portion vibrating with respect to the stator 20.
  • the vibrator 10 is installed in the case 30 constituting the external appearance of the device and performs linear movement in which the movement direction is periodically changed with respect to the first direction by interacting with the stator 20.
  • the vibrator 10 includes a pair of magnet groups 12A and 12B composed of a plurality of magnets, and a pair of magnetic bodies 13L and 13R provided on both sides of the magnet groups 12A and 12B for magnetic shielding and magnetic flux concentration. ) And weights 16L and 16R outside the magnetic bodies 13L and 13R.
  • the first linear motion of the vibrator 10 in the case 30 is amplified by the repulsive force of the springs 40L and 40R and at the same time limited to a certain width.
  • a direct physical collision between the vibrator 10 and the case 30 is suppressed by the repulsive force of the springs 40L and 40R that limit the amplitude of the vibrator 10 to a predetermined distance, and the vibrator 10 is in an initial starting position. It is also possible to return to the spring due to the spring repulsive force.
  • the springs 40L and 40R may preferably be corrugated springs having a continuous corrugated structure in the first direction as illustrated in the drawings, but are not limited thereto. It is only necessary to have a structure capable of exerting elasticity that is tensioned / compressed in response to the linear movement of the vibrator 10 in the first direction, and the vibrator 10 is disposed between the case 30 and the vibrator 10 with respect to the first direction. It may be provided in a pair to elastically support.
  • the case 30 forms a closed mounting space for accommodating the vibrator 10, the stator 20, and the springs 40L and 40R together with the bracket 34 coupled to the bottom thereof.
  • the case 30 may have a rectangular parallelepiped structure having a rectangular planar shape and an open lower portion as shown in the drawing.
  • the bracket 34 and the case 30 are formed of a magnetic material, the case 30 is driven by a magnetic flux concentration effect through magnetic shielding. Performance can be further improved.
  • the stator 20 is mounted on the bracket 34 and fixed in a structure located at the center of the mounting space. On the upper surface of the bracket 34 between the bracket 34 and the stator 20, the stator 20 generates vibration by interaction between the magnet constituting the vibrator 10 and the coil 22 of the stator 20.
  • the circuit board 50 which supplies an alternating current from the exterior to the coil 22 which comprises the stator 20 specifically, is arrange
  • the stator 20 includes the coil 22 mounted on the circuit board 50 on the upper surface of the bracket 34.
  • the outer surface is provided with yokes 24L and 24R, which are magnetic bodies configured to surround the coil 22.
  • the yokes 24L and 24R may be provided in pairs so as to have a symmetrical arrangement with respect to the first direction with respect to the center of the coil 22, and faces facing each other for the purpose of magnetic flux concentration It may be configured to contact each other.
  • Each of the yokes 24L and 24R may again be comprised of a yoke core 240 surrounded by a coil 22 and a yoke end 242 that defines a winding region of the coil 22.
  • the stator 20 composed of the yokes 24L and 24R and the coil 22 may be installed to be positioned at the center of the mounting space in a state supported by the bracket 34 through the yokes 24L and 24R.
  • the yokes 24L and 24R serve to concentrate magnetic force lines generated when power is applied to the coil 22 in one direction.
  • the magnets are alternately magnetized to the N pole and the S pole according to the direction of the power supply (AC current) applied to the coil 22. Accordingly, the vibrator 10 may perform linear movement in which the direction of movement is periodically changed in the case by interaction (gravity and repulsive force) with the magnet groups 12A and 12B of the vibrator 10 which will be described later.
  • the coil 22 is electrically connected to the circuit board 50 on the bracket 34 so that an alternating current is supplied to the stator 20 to vibrate the vibrator 10.
  • the vibrator 10 reciprocates horizontally in the first direction with respect to the stator 20 by the attractive force and the repulsive force between the electric field generated by the coil 22 from the signal and the magnetic fields of the magnet groups 12A and 12B. Vibration is generated by the movement.
  • the vibrator 10 includes a pair of magnet groups 12A and 12B for forming a magnetic field. Moreover, the pair of magnetic bodies 13L and 13R which comprise a magnetic circuit are provided. The pair of magnet groups 12A and 12B is fixed to the frame 14 so as to form an arrangement facing the second direction with the stator 20 therebetween, and the magnetic bodies 13L and 13R are partially part of each magnet group 12A. , 12B) are provided to face the first direction with respect to the stator 20 so as to contact both side portions.
  • a pair of weight bodies 16L and 16R is provided outside each of the magnetic bodies 13L and 13R.
  • the main role of the weight body (16L, 16R) is to amplify the vibration force of the vibrator 10, in some cases the magnetic body (13L, 13R) made of a high specific gravity metal material or by increasing the thickness of the magnetic body (13L, 13R) may also be configured to serve as the weights 16L and 16R. In this case, the weights 16L and 16R may be omitted.
  • FIG. 5 is an enlarged structural view of a main part for explaining a magnetic circuit of the horizontal linear vibration generating device according to an embodiment of the present invention.
  • the vibrator 10 constituting the magnetic circuit includes a pair of magnet groups (hereinafter, referred to as 'first and second') that are disposed to face each other in a second direction with respect to the stator 20.
  • Magnet groups 12A and 12B and a pair of magnetic bodies (hereinafter, referred to as 'first') installed in the first direction about the stator 20 so that a part of the magnet groups 12A and 12B are in contact with both side portions of each magnet group.
  • second magnetic bodies 13L and 13R ' second magnetic bodies
  • the first magnet group 12A composed of a plurality of permanent magnets is installed, and the first magnet group is centered on the stator 20.
  • the second magnet group 12B is arranged in a structure symmetrical with 12A.
  • each of the first and second magnet groups 12A and 12B includes one central magnet 120 and auxiliary magnets 122L and 122R that are disposed to be connected to both sides of the central magnet 120.
  • the central magnet 120 included in each of the first and second magnet groups 12A and 12B is magnetized so that the direction of the magnetic field is directed toward the stator 20, and the auxiliary magnets 122L and 122R are formed on the magnetic pole surface ( 121L and 121R are installed in contact with both sides of the central magnet 120 and magnetized so that the direction of the magnetic field is directed toward the central magnet 120, and the auxiliary magnets 122L and 122R and the central magnet 120 are mutually connected.
  • Contacting magnetic pole surfaces 121L and 121R are formed to be inclined.
  • the magnetization directions of the first and second magnet groups 12A and 12B may be perpendicular to each other in the magnetization direction of each of the central magnets 120 and the auxiliary magnets 122L and 122R installed at both sides of the central magnet 120.
  • the central magnet 120 may be a permanent magnet magnetized in a direction perpendicular to the second direction
  • the auxiliary magnets 122L and 122R may be permanent magnets magnetized in a direction perpendicular to the first direction.
  • the magnetic pole arrangements of the first and second magnet groups 12A and 12B may also be arranged in the opposite directions to the above-described directions.
  • the central magnet 120 of each of the first and second magnet groups 12A and 12B has an N pole and a S pole opposite to the stator 20.
  • the central magnet 120 The auxiliary magnets 122L and 122R, which are connected to both sides of the N, are arranged in such a manner that the polarity of the side contacting the magnetic pole surfaces 121L and 121R of the central magnet 120 is the N pole and the S pole is located on the opposite side.
  • the magnetic poles of the central magnet 120 and the auxiliary magnets 122L and 122R may be perpendicular to each other in the overall magnetic pole arrangement.
  • a magnetic circuit having a closed curve structure in which magnetic force line patterns are continuous in four arrow directions is formed as shown in FIG. 5, wherein the magnetic field direction of the central magnet 120 is directed toward the stator 20.
  • the magnets 122L and 122R are directed toward the center magnet 120 so that the center magnet 120 pushes the magnetic flux of the auxiliary magnets 122L and 122R toward the stator side, thereby exerting an effect on one side of each magnet group 120A and 120B.
  • the magnetic flux density increases and the magnetic flux density on the other side decreases.
  • the effect of increasing the strength of the magnetic force (magnetic force directed to the stator 20) on the side that substantially generates the vibration force through interaction with the stator 20 is obtained, and the magnet of the magnet that is increased in the direction of the stator 20 appears.
  • the interaction between the magnetic force and the magnetomotive force of the coil improves the suction, repulsion and propulsion of the stator 20 with respect to the vibrator 10, the vibration force can be maximized and the reaction speed (responsiveness) can be greatly improved.
  • the magnetic force is greatly weakened by the mutual interference between the lines of magnetic force according to the Halbach arrangement.
  • magnetic shielding that prevents external leakage of magnetic fields is not required. Therefore, since the magnet 14 and the frame 14 for mounting the magnetic body inside do not have to be constituted by the magnetic material, it is possible to reduce the device weight and reduce the cost.
  • FIG. 6 is a diagram illustrating various modifications of a magnet group having a structure in which magnetic force is increased on one side and canceled and reduced on the other side.
  • the central magnet 120 may be formed in an isosceles triangle shape in which a gap between the magnetic pole surfaces 121L and 121R in contact with the auxiliary magnet becomes narrower as it moves away from the stator 20.
  • the vertex of the central magnet 120 opposite the stator 20 and the horizontal position of the outer surface of the auxiliary magnets (122L, 122R) is the same, or the vertex is the outer surface portion It may be configured to be closer to the stator 20.
  • the magnetic force of the central magnet 120 is fixed to the stator.
  • the effect of focusing more on (20) is expressed. Accordingly, the magnetic efficiency between the stator 20 and the vibrator 10 is increased, and the repulsive force is increased, so that the effect of further strengthening the vibration can be exerted.
  • vertices of the central magnets 120 opposite to the stator 20 are formed of the auxiliary magnets 122L and 122R.
  • the magnetic poles (N pole) of the auxiliary magnets (122L, 122R) in contact with the central magnet 120 and the magnetic poles (S pole) of the vertex side central magnet 120 ) The magnetic field leaking to the outside can be effectively reduced.
  • the auxiliary magnets that contact the central magnets 120 are provided.
  • the length L2 of the side of the magnetic pole face of the magnets 122L and 122R is at least 1/3 of the length L1 of the side of the magnetic pole face of the central magnet, thereby suppressing the leakage of magnetic flux while forming a smooth circulating magnetic force pattern in the magnetic circuit. It is preferable to.
  • the central magnet 120 may be formed in a substantially equilateral trapezoidal shape in which a gap between the magnetic pole surfaces 121L and 121R in contact with the auxiliary magnet becomes narrower as it moves away from the stator 20.
  • the horizontal position of the upper side of the central magnet 120 and the auxiliary magnets 122L and 122R opposite to the stator 20 is the same, or the upper side is It may be configured to be located closer to the stator 20 than the outer surface portion.
  • the magnetic force of the central magnet 120 is stator.
  • the magnetic efficiency between the stator 20 and the vibrator 10 may be increased and the repulsive force may be increased, thereby further enhancing the vibration.
  • the outermost surfaces of the central magnets 120 opposite to the stator 20 are auxiliary magnets 122L and 122R.
  • the magnetic poles (N pole) of the auxiliary magnets (122L, 122R) in contact with the central magnet 120 and the magnetic poles (S) of the vertex side central magnet 120 The interaction of the poles (gravity) can increase the effect of reducing the leakage flux.
  • the upper side of the central magnet 120 opposite the stator 20 further protrudes outward from the outer surface portions of the auxiliary magnets 122L and 122R.
  • the length L2 of the side of the magnetic pole face of the magnets 122L and 122R is at least 1/3 of the length L1 of the side of the magnetic pole face of the central magnet, thereby suppressing the leakage of magnetic flux while forming a smooth circulating magnetic force pattern in the magnetic circuit. It is preferable to.
  • FIG. 8 is a diagram illustrating another modification of the magnet group, and a plurality of magnet arrays constituting the magnet group may be configured as shown in FIG. 8. That is, the auxiliary magnets 122L and 122R (magnets connected to both sides of the central magnets) are divided on the basis of the magnetic pole boundaries D that are perpendicular to each other and that are symmetric to the magnetic pole surfaces 121L and 121R described above. It can be composed of two magnets.
  • the auxiliary magnets 122L and 122R are in contact with the central magnet 120 through the magnetic pole surfaces 121L and 121R, and the first auxiliary magnets 122- magnetized so that the direction of the magnetic field is directed toward the central magnet 120.
  • the second auxiliary magnets 122-2L and 122-2R may be opposite to each other.
  • the magnetic efficiency is further improved, and the center magnet Based on (120), the magnetic force canceling effect of the region opposite to the stator 20 is further increased by the mutually opposite directions of the two second auxiliary magnets 122-2L and 122-2R arranged in a symmetrical structure.
  • the magnetic field leaking to the outside can be further reduced.
  • FIG. 9 and 10 are experimental data showing the magnetic flux distribution in each magnetic circuit and the intensity of the magnetic field for each region, and FIG. 9 shows the magnetic flux distribution and the magnetic field strength of the magnetic circuit generally applied to a conventional linear vibration generator. 10 shows magnetic flux distribution and magnetic field strength of each region of a magnetic circuit applied to the linear vibration generator according to the present invention.
  • the vertical axis and the horizontal axis represent the magnetic flux density and distance in the lower graph showing the strength of the magnetic field for each region in the magnetic circuit.
  • 6.00 mm of the values on the horizontal axis representing the distance correspond to the center of the magnetic circuit (the center of the stator), and the lines of the nonlinear structure represented by 1 and 2 represent the change in the strength of the magnetic field in the inner and outer regions of the vibrator, respectively.
  • the magnetic flux density (1) of the inner region in the region corresponding to approximately 0.4 to 8.00 mm is not uniform.
  • the intensity (magnetic flux density) of the magnetic field in the section where the stator and the magnet face each other is not uniform.
  • the force for moving the vibrator by the interaction between the stator and the vibrator is not uniform with respect to the vibration direction (first direction). This means that the overall driving performance such as maneuverability and responsiveness is poor.
  • the intensity (magnetic flux density) of the magnetic field in the section where the stator and the magnet face each other is different.
  • the force that moves the vibrator by the interaction between the stator and the vibrator acts uniformly with respect to the vibration direction (first direction). This means that the overall driving performance, such as the maneuverability and response of the device can be interpreted to be significantly improved compared to the prior art.
  • the magnetic circuit characteristics characteristic that the magnetic force of the side facing the stator is increased
  • the unique permanent magnet array Halbach array
  • the mutual force between the magnetic force of the magnet and the magnetic force of the coil Aspiration, repulsion and thrust can be improved.
  • the effect of maximizing the vibration force of the vibration generating device and improving the reaction speed can be exerted.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

L'invention concerne un dispositif générateur de vibration linéaire horizontal. Le dispositif générateur de vibration linéaire horizontal selon la présente invention est configuré pour comprendre : un boîtier couplé à un support de façon à former un espace de montage à l'intérieur de celui-ci ; un stator comprenant une bobine, qui est monté sur une carte de circuit imprimé sur une surface supérieure du support, et une culasse, qui est configurée de telle sorte qu'une partie de sa surface extérieure est entourée par la bobine ; un vibreur configuré pour entourer le stator et oscillant dans une première direction à l'intérieur du boîtier en raison de l'interaction avec le stator ; et une paire de ressorts pour supporter élastiquement le vibreur des deux côtés dans la première direction, entre le boîtier et le vibreur. Le vibrateur comprend : des premier et second groupes d'aimants disposés l'un en face de l'autre dans une seconde direction croisant la première direction, le stator entre eux ; et des corps de poids disposés adjacents aux premier et second groupes d'aimants. Les premier et second groupes d'aimants comprennent chacun : un aimant central magnétisé de telle sorte que son champ magnétique est orienté vers le stator ; et une paire d'aimants auxiliaires installés sur les deux côtés de l'aimant central de manière à entrer en contact avec l'aimant central, et magnétisés de telle sorte que leurs champs magnétiques sont orientés vers l'aimant central. Des surfaces de pôle magnétique sur lesquelles la paire d'aimants auxiliaires sont en contact avec l'aimant central sont inclinées.
PCT/KR2019/004541 2018-04-17 2019-04-16 Dispositif générateur de vibration linéaire horizontal WO2019203521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201990000590.4U CN213305225U (zh) 2018-04-17 2019-04-16 水平型线性振动发生装置

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KR10-2018-0044622 2018-04-17
KR1020180044622A KR102533589B1 (ko) 2018-04-17 2018-04-17 수평형 리니어 진동발생장치

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Cited By (2)

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CN113991914A (zh) * 2021-09-30 2022-01-28 歌尔股份有限公司 振动马达
WO2022062149A1 (fr) * 2020-09-28 2022-03-31 瑞声声学科技(深圳)有限公司 Moteur à vibrations linéaires

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210088041A (ko) * 2020-01-03 2021-07-14 자화전자(주) 수평형 리니어 진동발생장치
KR102429302B1 (ko) * 2020-09-04 2022-08-04 한국생산기술연구원 직선형 능동자기베어링
KR102665819B1 (ko) 2022-04-08 2024-05-13 (주)파트론 수평 진동장치
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