CN111934514A - Vertical vibrator using upper and lower permanent magnets and magnetic force generation method - Google Patents
Vertical vibrator using upper and lower permanent magnets and magnetic force generation method Download PDFInfo
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- CN111934514A CN111934514A CN202010835609.6A CN202010835609A CN111934514A CN 111934514 A CN111934514 A CN 111934514A CN 202010835609 A CN202010835609 A CN 202010835609A CN 111934514 A CN111934514 A CN 111934514A
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- permanent magnet
- metal plate
- vibrator
- coil
- lower permanent
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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
- H02K33/02—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/12—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
- B06B1/14—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses the masses being elastically coupled
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- H02K33/16—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
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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
- H04M19/047—Vibrating means for incoming calls
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Signal Processing (AREA)
Abstract
The invention is a vertical vibrator using upper and lower magnets, the housing provides a housing space for housing a vibrator and a stator, the vibrator can move up and down in the housing, the vibrator is composed of a metal plate for concentrating electromagnetic force, a lower permanent magnet combined with the lower surface of the metal plate and emitting a fixed strength and a fixed direction magnetic field, an upper permanent magnet combined with the upper surface of the metal plate and emitting a fixed strength and a fixed direction magnetic field, and a mass body combined with the metal plate, the upper permanent magnet and the outer edge of the lower permanent magnet, the lower surface of the mass body is combined by an elastic component, and the elastic component is combined with the lower housing providing the housing space. The lower surface of the stator is combined with the upper shell to provide a containing space, the stator also comprises a bracket and a coil, and the upper end part of the bracket is vertically inserted into the inner diameters of the lower permanent magnet, the metal plate and the upper permanent magnet; the coil can generate electromagnetic force by inputting power from the outside.
Description
Technical Field
The present invention relates to a vibration motor for a small electronic device, and more particularly, to a vertical vibrator using upper and lower permanent magnets and a method for generating magnetic force.
Background
Recently, smart phones are widely popularized in the prior art, and therefore, a vibration motor having a fast response is used by combining a touch function and vibration in a variety of ways through a touch screen. The vibration motor is a component that converts electric energy into mechanical vibration using the principle of generation of electromagnetic force, and is a component that informs a receiving state by vibration, not sound. DC motors using brushes generally employ a vibrating device for the brush motor, but this is due to the limited life span of the brushes. Since there is a limit to the use of various vibration modes, which is currently converted into a method of using a full-scale liquid crystal and using various functions through a touch screen, it is difficult to satisfy consumer's requirements for a vibration motor having a fast response characteristic and a long life. On the other hand, in order to overcome the disadvantages of the life and responsiveness of the motor, a vertical vibration is used in many cases to embody the vibration function of the touch panel.
The vertical vibrator will couple the mass to an externally disposed elastic member having an elastic restoring force and synchronize it to an externally recognized power frequency to periodically generate resonance, thereby inducing vibration. Rather than the rotary principle of the motor. However, in order to use various vibration modes and touch sensors for a vertical vibrator designed to vibrate in the vertical direction, a vertical vibrator having a faster response characteristic is required, and a vertical vibrator structure having a very fast response characteristic in a relationship between an electromagnetic force and a magnetic force generated thereby is required.
Disclosure of Invention
The present invention has been made in view of the above problems occurring in the prior art, and it is an object of the present invention to provide a vertical vibrator using upper and lower permanent magnets and a method for generating magnetic force, which can ensure a fast response speed by combining the upper and lower permanent magnets with a metal sheet interposed therebetween to form a magnetic circuit passing through upper and lower housings, a bracket post and a bracket metal sheet, thereby allowing for integrated magnetic force and thus achieving an emergency stop.
In order to achieve the purpose, the invention provides the following scheme: a vibrating body comprises a metal plate for concentrating electromagnetic force, an upper permanent magnet and a lower permanent magnet, wherein the upper permanent magnet and the lower permanent magnet are respectively positioned on the upper surface and the lower surface of the metal plate, a mass body is arranged at the outer edge of each of the metal plate, the upper permanent magnet and the lower permanent magnet respectively emit magnetic fields with fixed strength upwards and downwards, and a coil with variable electromagnetic force is inserted into each of the metal plate, the upper permanent magnet and the lower permanent magnet.
Preferably, an elastic member is connected to a bottom of the mass body, and when the coil generates a magnetic force, an attractive force and a repulsive force are generated between the coil and the metal plate, and between the upper permanent magnet and the lower permanent magnet, and the mass body drives the elastic member to move up and down.
Preferably, the vertical vibrator using upper and lower permanent magnets includes a housing for providing a housing space, and the vibrator and the stator are located in the housing space, the vibrator can move up and down in the casing, the vibrator is combined with the lower surface of the metal plate by the metal plate which concentrates electromagnetic force, and the lower permanent magnet which emits a magnetic field with fixed strength and fixed direction is combined with the upper surface of the metal plate, and an upper permanent magnet emitting a magnetic field of fixed intensity and fixed direction, a mass body combined with the metal plate and the outer edges of the upper permanent magnet and the lower permanent magnet, an elastic part is combined below the mass body, the machine shell comprises an upper machine shell and a lower machine shell, the elastic part is combined with the lower machine shell, and the lower machine shell is combined with the upper machine shell to provide the accommodating space;
the stator includes a bracket and a coil, the upper end of the bracket is vertically inserted into the lower permanent magnet, the metal plate and the upper permanent magnet, and the coil can generate electromagnetic force by an external input power supply.
Preferably, the upper permanent magnet has an outer diameter larger than that of the lower permanent magnet.
Preferably, the support includes a support post for transmitting the electromagnetic force and combined with the inner wall of the coil, and a support metal plate connected to the support post and having an outer diameter greater than that of the support post.
Preferably, the lower housing serves as a lower end portion of the receiving space, and a through hole is formed in a middle of the lower housing, and the stand column is inserted into the through hole.
Preferably, the upper surface of the lower case is provided with a PCB, the PCB is soldered to the coil, and the PCB provides a circuit when a power supply is inputted from the outside.
Preferably, a magnetic circuit is formed by the bracket and the upper and lower permanent magnets, the metal plate, which concentrate electromagnetic force, and the upper and lower cases are made of metallic magnetic material.
Preferably, the coil is made of a metallic magnetic material, and is used for concentrating the electromagnetic force generated by the coil and fixing the direction of the electromagnetic force.
Preferably, the upper surface of the upper permanent magnet is coated with a magnetic liquid for magnetic buffering.
Preferably, a lower cushion pad is disposed on an upper surface of the lower case facing the lower permanent magnet, and the lower cushion pad is configured to avoid contact with the coil when the vibrating body moves up and down, thereby performing a mechanical buffering function.
Preferably, the mass body is provided with a mounting table for facilitating the coupling between the upper permanent magnet and the lower permanent magnet and between the metal plates.
Preferably, an upper buffer pad is disposed on an inner surface of the upper case facing the upper permanent magnet, and the upper buffer pad performs a mechanical buffering function.
Preferably, there is provided a method of generating a magnetic force, wherein the upper permanent magnet and the lower permanent magnet are mounted on an upper side and a lower side of the metal plate, respectively, to generate a magnetic force in a vertical direction, and the upper permanent magnet, the lower permanent magnet, and a central portion of the metal plate are vertically inserted into a holder; the inner wall of the coil generating variable electromagnetic force when an electric signal of alternating frequency is accessed from the outside is combined with the outer wall of the bracket to form electromagnetic force in different directions on the upper side and the lower side, so that attractive force and repulsive force are generated, and the coil moves up and down to cause vibration.
Preferably, edges of the metal plate and the upper and lower permanent magnets are coupled to the mass body, the mass body is coupled to the elastic member, and the elastic member supports the mass body and moves up and down.
Compared with the prior art, the invention has the following technical effects:
1. the upper and lower permanent magnets are combined at intervals of the metal sheet, the upper and lower casings are vertically opposite to the upper and lower permanent magnets, and a magnetic circuit with concentrated magnetic force from the upper and lower casings to the upper end of the bracket and the upper end of the bracket is formed, so that the quick response speed is ensured.
2. In the invention, when the power supply is OFF, the vibrating body combined with the elastic component does up-and-down inertial motion, and at the moment, the magnetic force of the upper permanent magnet and the lower permanent magnet is concentrated on the metal sheet by taking the metal plate of the vibrating body as the center, and forms magnetic force balance with the magnetic field on the upper end surface of the bracket, thus the vibrating body can stop motion rapidly; when the power supply is ON, the magnetic force balance point starts to start, the interaction between the electromagnetic force of the coil and the magnetic force of the permanent magnet ON the set point moves up and down rapidly, and the rapid response speed can be kept.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an exploded view of a vertical vibrator using upper and lower permanent magnets and a magnetic force forming method.
FIG. 2 is a partial cross-sectional view of a vertical vibrator using upper and lower permanent magnets and a magnetic force forming method according to the present invention
FIG. 3 is a cross-sectional view of a vertical vibrator using upper and lower permanent magnets and a method for forming a magnetic force according to the present invention
FIG. 4 is a cross-sectional view of the 1 st magnetic path flowing back from the upper permanent magnet to the upper permanent magnet through the bracket rim and the metal piece and the 2 nd magnetic path flowing back from the lower permanent magnet to the lower permanent magnet through the bracket post, the bracket rim and the metal piece according to the vertical vibrator using the upper and lower permanent magnets and the magnetic force forming method of the present invention.
Fig. 5 is a schematic view showing the distribution of magnetic lines of force of a vibrator composed of upper and lower permanent magnets and a metal piece and the relationship with the electromagnetic force of a fixed body composed of a bracket post, an upper end portion of the bracket and a coil, using the vertical vibrator of the upper and lower permanent magnets and the magnetic force forming method of the present invention.
FIG. 5a is a cross-sectional view of the power OFF state.
Fig. 5b is a cross-sectional view of the state at a positive current.
Fig. 5c is a cross-sectional view in the reverse current state.
Fig. 6 is a schematic view illustrating a through hole of a lower case coupled to a bracket according to a vertical vibrator using upper and lower permanent magnets and a method of forming a magnetic force according to the present invention.
Fig. 7 is a schematic view showing a state in which an upper permanent magnet and a metal piece are bonded to each other and a lower permanent magnet and a metal piece are bonded to each other according to a vertical vibrator using upper and lower permanent magnets and a magnetic force forming method of the present invention. .
FIG. 8 is a schematic view of a vertical vibrator using upper and lower permanent magnets and a holder for a magnetic force forming method according to the present invention;
wherein, 100-stator, 110-lower case, 111-through hole, 120-PCB, 130-lower side buffer pad, 140-coil, 150-support, 151-support column, 152-support metal plate, 153-lower side support metal plate, 154-upper side support metal plate, 200-elastic component, 300-vibration body, 310-quality body, 311-mounting groove, 320-lower side permanent magnet, 330-metal plate, 340-upper side permanent magnet, 350-upper side magnetic liquid, 360-lower side magnetic liquid, 400-case, 410-upper case, 420-upper side buffer pad.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The present invention has been made in view of the above problems occurring in the prior art, and it is an object of the present invention to provide a vertical vibrator using upper and lower permanent magnets and a method for generating magnetic force, which can ensure a fast response speed by combining the upper and lower permanent magnets with a metal sheet interposed therebetween to form a magnetic circuit passing through upper and lower housings, a bracket post and a bracket metal sheet, thereby allowing for integrated magnetic force and thus achieving an emergency stop.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 8, the vertical vibrator using upper and lower permanent magnets according to the present invention includes a vibrator 300, a fixed body 100, and a case 410.
The lower surface of the metal sheet 330 that concentrates the magnetic field is coupled to the lower permanent magnet 320 that has a fixed direction and intensity and generates the magnetic field, the upper surface of the metal sheet 330 is coupled to the upper permanent magnet 340 that has a fixed direction and intensity and generates the magnetic field, and the above-mentioned coupling body is coupled to the mass body 310 to form the vibration body 300; the elastic member 200 is combined with the vibration body 300; the fixing body 100 is composed of a coil 140 generating electromagnetic force, a bracket 150 combined with the inner wall of the coil 140, a PCB120 combined with the coil 140 by soldering to provide a circuit, and a lower case 110 combined with the lower surface of the PCB120 and the bracket 150; the upper case 410 provides a receiving space in combination with the lower case 110.
The diameter of the upper permanent magnet 340 coupled to the upper surface of the metal piece 330 concentrating the magnetic field is larger than the diameter of the lower permanent magnet 320 coupled to the lower surface of the metal piece 330. The permanent magnets form a magnetic field in the vertical direction.
The holder 150 is composed of a holder post 151 and a circular holder metal plate 152 larger than the holder post 151, and the coil is inserted into the holder 150 to be combined with the inner wall of the coil 140.
In order to ensure that the electromagnetic force generated by the coil 140 is intensively transmitted in a certain direction, the holder combined with the inner wall of the coil 140 is generally made of a metallic magnetic material.
The upper surface of the upper permanent magnet 340 is provided with magnetic liquid which can play a role of magnetic force buffering; in order to prevent the vibrator 300 from contacting the coil 140 during the up and down movement, a buffer pad is installed on the upper surface of the lower case 110 facing the lower permanent magnet 320 to perform a mechanical buffer function.
In order to facilitate the magnetic circuit formed by the magnetic force generated by the bracket 150 concentrating the electromagnetic force in combination with the upper permanent magnet 150, the lower permanent magnet 320, and the metal plate 330, the lower case 110 and the upper case may be made of a metallic magnetic material.
In order to secure the upper permanent magnet 340, the lower permanent magnet 320, and the metal piece 330 to each other at predetermined positions, the mass body 310 is provided with a mounting table.
The space formed by the lower housing 110 and the upper housing 410 houses the mass body 310, and in order to perform a mechanical buffering function, an upper buffering pad 420 is mounted on the inner surface of the upper housing 410 facing the upper permanent magnet 340, and a lower buffering pad 130 is mounted on the surface of the lower housing 110 facing the lower permanent magnet 320.
A positioning hole may be formed in the middle of the upper case 410 providing an inner space to facilitate combination with the lower case 110; the lower housing 110 may be provided at a middle portion thereof with a through hole 111 to facilitate the coupling of the holder post 151 and the holder metal plate 152 with the lower housing 110.
The fine granular permanent magnet powder is mixed with oil or lubricant oil to form magnetic liquid, and the liquid flows along with the change of magnetic force lines and can play a role of buffering, so that the upper side permanent magnet 340 is combined with the upper side permanent magnet 340 to form the upper side magnetic liquid 340, and the lower side permanent magnet 320 is combined with the lower side magnetic liquid 360.
The magnetic force lines formed by the upper magnetic liquid 350 and the lower magnetic liquid 360 along with the metal plate 330, the upper housing 410, and the lower housing 110 change the magnetic force direction, facilitating the movement of the magnetic force lines.
The magnetic force lines concentrated on the metal plate 330 are divided into two paths, wherein one path returns to the metal plate 330 after passing through the upper case 410, the lower case 110, the bracket pillar 151 and the bracket metal plate 152 from the upper permanent magnet 340 in sequence; the other circuit is a magnetic circuit from the metal plate 330, through the lower permanent magnet 320, the lower case 110, the bracket post 151, the bracket metal plate 152, and back to the metal plate 330.
The connected external power is inputted to the coil 140 generating the electromagnetic force through the PCB120, and at this time, attractive and repulsive forces are generated between the electromagnetic force generated by the coil 140 and the magnetic forces generated by the metal plate 330, the upper permanent magnet 340, and the lower permanent magnet 320, thereby driving the elastic member 200 to move up and down, and the vibration body 300 also moves up and down.
When the power is OFF, the vibrating body 300 combined with the elastic member 200 moves up and down through inertia, and the first electromagnetic circuit and the second electromagnetic circuit prevent the vibrating body combined with the elastic member 200 from moving, so that instant stop can be achieved; when the restoring force of the elastic member 200 is equalized, the vibrator can maintain the initial state.
As shown in fig. 5b, when a positive power is inputted to the coil 140, the electromagnetic force generated from the coil 140 is concentrated on the support posts 330 via the support posts 151, and the attractive force and the repulsive force are generated in the metal plate 330 in which the electromagnetic force is concentrated, so that the vibrating body ascends and descends.
At this time, in order to ensure the magnetic force between the upper permanent magnet 340 and the case 410, the flowing upper magnetic liquid 350 ensures that the magnetic force between the upper permanent magnet 340 and the upper case 410 is well maintained; the lower magnetic liquid 360 combined with the lower permanent magnet 320 ensures that the magnetic force between the lower permanent magnet 320 and the bracket 150 is well maintained.
When a positive power is input, the electromagnetic force generated by the permanent magnet 320340 and the coil 140 generates attraction and repulsion, the vibrating body 300 composed of the permanent magnets moves towards the upper direction, and at the moment, the magnetic liquid on the lower side freely flows to fill up the magnetic force space between the edge of the bracket 150 and the permanent magnets on the lower side, so that the magnetic force loss is minimized.
The upper magnetic liquid 350 fills the magnetic space between the upper permanent magnet 340 and the upper case 410, helping to minimize the loss of magnetic force, stopping the flow at the point of magnetic equilibrium.
As shown in fig. 5C, when a reverse current is applied, the electromagnetic force generated from the coil 140 is concentrated on the holder metal plate 152 via the holder post 151, and the metal plate 330 having the concentrated magnetic force generates a repulsive attraction, so that the vibrator 300 descends and ascends.
At this time, the flowable upper magnetic liquid 350 changes its form between the upper permanent magnet 340 and the holder 150, ensuring that the magnetic lines of force are well maintained.
When the power is OFF, the vibrator 300, which is mainly composed of a permanent magnet and is combined with the elastic member 200, is freely moved up and down, and is rapidly stopped by the first magnetic force lines and the second magnetic force lines passing through the metal plate 330 and the bracket 150 located at the center.
When the whole machine provided with the product of the present invention performs a drop test, the vibrator connected to the upper housing 410, the lower housing 110, and the elastic member 200 is moved freely due to an external force, and in order to minimize damage caused by the free movement, an upper cushion pad 420 is attached to the inner wall of the upper housing 410 facing the vibrator 300 when moving upward, and a lower cushion pad 130 is attached to the lower housing 110 when moving downward, so that a certain gap can be maintained, thereby reducing noise generated by the collision between the vibrator 300 and the upper housing 410 and the lower housing 110 providing a storage space.
When a reverse power supply is connected, the electromagnetic force generated by the permanent magnet and the coil generates attraction and repulsion, the vibrating body 300 composed of the permanent magnet descends, the upper magnetic liquid 350 flows freely, the gap between the edge of the bracket 150 and the upper permanent magnet is filled, and the magnetic loss is minimized; the lower magnetic liquid 360 fills up the magnetic space between the lower permanent magnet 320 and the lower housing 110, so that the loss of magnetic force can be minimized, and the movement will be stopped at the time of magnetic force equilibrium.
The lower case 110 and the upper case 340 serve as magnetic flux paths generated by the upper permanent magnet 340 and the lower permanent magnet 340, and generally adopt a metallic magnetic material.
The mass body 310 and the lower case 110 are connected to an elastic member, respectively, the elastic member 200 is composed of an outer edge having a large outer diameter and a plurality of supporting frames, an upper portion thereof is formed in a doughnut shape, the outer edge is combined with the lower case 110, and the inner edge is combined with the mass body 310.
In order to facilitate the combination of the support posts 151 with the lower housing 110, a through hole 111 is formed in the center of the lower housing 110, and the through hole 111 can penetrate vertically.
The upper case providing the inner space is formed with more than 1 positioning hole, which is helpful for adjusting the amount of the upper magnetic liquid 350 distributed on the upper permanent magnet 340 and injecting from the positioning hole.
When an external power source is applied, electromagnetic force generated from the coil 140 is concentrated on the bracket posts 140, and a magnetic path is formed in a certain direction through the bracket metal plate 152, so that a metallic magnetic material is used.
The bracket 150 according to another aspect of the present invention is composed of a lower bracket post 153, a bracket metal plate 152, and an upper bracket post 154, and the operation principle is the same as that of the present invention, in which magnetic lines of force concentrated on the bracket metal plate 152 return to the metal plate 330 after passing through the upper permanent magnet 340, the upper housing 410, the upper bracket post 154, and the bracket metal plate 152 in sequence to form a first magnetic circuit, and then return to the metal plate 330 after passing through the metal plate 330, the lower housing 110, the lower bracket post 153, and the bracket metal plate 152 in sequence to form a second magnetic circuit.
In the method for forming the vertical vibrator magnetic force using the upper and lower permanent magnets according to the present invention, the upper permanent magnet 340 and the lower permanent magnet 320 are respectively mounted at the upper end and the lower end of the metal plate 330, and generate magnetic force in the up-down direction, respectively, the bracket 150 is inserted into the metal plate 330, the lower permanent magnet 320, and the upper permanent magnet 340, and the hollow coil 140, which generates variable electromagnetic force after the external ac power is input, is coupled to the outer wall of the bracket 150, and moves up and down due to the attraction and repulsion of the electromagnetic force alternately generated up and down, thereby generating vibration.
The mass body 301 is coupled to edges of the metal plate 330, the upper permanent magnet 340, and the lower permanent magnet 320, and the mass body 310 is supported by the elastic member 200 to be movable downward.
In order to achieve the concentrated magnetic force and the fast response speed, the upper permanent magnet 340 and the lower permanent magnet 320 are respectively disposed at the upper and lower sides of the metal plate 330 between the upper and lower sides of the present invention, and the upper housing 410 and the lower housing 110 are respectively disposed in the direction vertically facing the upper permanent magnet 340 and the lower permanent magnet 320, thereby forming a loop that returns to the support metal plate 151 through the upper housing 410, the lower housing 110, and the support post 151, respectively.
When the power is OFF, the vibrator 300 connected to the elastic member 200 moves up and down by inertia, and at this time, the magnetic force of the upper permanent magnet 340 or the lower permanent magnet 320 is concentrated ON the metal plate 330 based ON the metal plate 330 of the vibrator 300 and is balanced with the magnetic force of the bracket metal plate 152, so that the vehicle stops rapidly, and when the power is ON, the vehicle starts to move from the magnetic force balance point, and the electromagnetic force and the magnetic force generated by the coil interact with each other at the set operating point position, so that the vehicle rapidly moves up and down.
The adaptation according to the actual needs is within the scope of the invention. The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (15)
1. A vibrating body is characterized by comprising a metal plate for concentrating electromagnetic force, an upper permanent magnet and a lower permanent magnet, wherein the upper permanent magnet and the lower permanent magnet are respectively positioned on the upper surface and the lower surface of the metal plate, a mass body is arranged at the outer edges of the metal plate, the upper permanent magnet and the lower permanent magnet respectively emit magnetic fields with fixed strength upwards and downwards, and coils with variable electromagnetic force are inserted in the metal plate, the upper permanent magnet and the lower permanent magnet.
2. The vibrating body according to claim 1, wherein an elastic member is connected to a bottom of the mass body, and when a magnetic force is generated by the coil, attractive and repulsive forces are generated between the coil and the metal plate, the upper permanent magnet and the lower permanent magnet, and the mass body drives the elastic member to move up and down.
3. A vertical vibrator using upper and lower permanent magnets, comprising a housing for providing a housing space, and a vibrator and a stator located in the housing space, the vibrator can move up and down in the casing, the vibrator is combined with the lower surface of the metal plate by the metal plate which concentrates electromagnetic force, and the lower permanent magnet which emits a magnetic field with fixed strength and fixed direction is combined with the upper surface of the metal plate, and an upper permanent magnet emitting a magnetic field of fixed intensity and fixed direction, a mass body combined with the metal plate and the outer edges of the upper permanent magnet and the lower permanent magnet, an elastic part is combined below the mass body, the machine shell comprises an upper machine shell and a lower machine shell, the elastic part is combined with the lower machine shell, and the lower machine shell is combined with the upper machine shell to provide the accommodating space;
the stator includes a bracket and a coil, the upper end of the bracket is vertically inserted into the lower permanent magnet, the metal plate and the upper permanent magnet, and the coil can generate electromagnetic force by an external input power supply.
4. The vertical vibrator using upper and lower permanent magnets as claimed in claim 3, wherein the upper permanent magnet has an outer diameter larger than that of the lower permanent magnet.
5. The vertical vibrator using upper and lower permanent magnets as claimed in claim 3, wherein the frame includes frame pillars coupled to an inner wall of the coil for transmitting electromagnetic force, and a frame metal plate connected to the frame pillars and having an outer diameter greater than that of the frame pillars.
6. The vertical vibrator using upper and lower permanent magnets as claimed in claim 5, wherein the lower housing serves as a lower end portion of the receiving space, and a through hole is formed in a middle of the lower housing, and the bracket post is inserted into the through hole.
7. The vertical vibrator using upper and lower permanent magnets as claimed in claim 6, wherein a PCB is provided on an upper surface of the lower case, the PCB is solder-coupled to the coil, and the PCB provides an electric circuit when a power is inputted from the outside.
8. The vertical vibrator using upper and lower permanent magnets as claimed in claim 6, wherein a magnetic circuit is formed by the upper permanent magnet and the lower permanent magnet, the metal plate, and the holder concentrating electromagnetic force, and the upper case and the lower case are made of metallic magnetic material.
9. The vertical vibrator using upper and lower permanent magnets as claimed in claim 3, wherein the coil is made of a metallic magnetic material for concentrating the electromagnetic force generated from the coil and fixing the direction of the electromagnetic force.
10. The vertical vibrator using upper and lower permanent magnets as claimed in claim 1, wherein the upper surface of the upper permanent magnet is coated with a magnetic liquid for buffering magnetic force.
11. The vertical vibrator using upper and lower permanent magnets as claimed in claim 6, wherein a lower buffer pad is provided on an upper surface of the lower case facing the lower permanent magnet, the lower buffer pad being adapted to prevent the vibrator from contacting the coil during the up-and-down movement of the vibrator, thereby providing a mechanical buffer function.
12. The vertical vibrator using upper and lower permanent magnets as claimed in claim 3, wherein the mass body is provided with a seating platform for facilitating the coupling between the upper and lower permanent magnets and the metal plate.
13. The vertical vibrator using upper and lower permanent magnets as claimed in claim 3, wherein an upper buffer is provided on an inner surface of the upper case facing the upper permanent magnets, the upper buffer serving as a mechanical buffer.
14. A method for generating a magnetic force of a vertical vibrator using upper and lower permanent magnets according to any one of claims 3 to 13, wherein the upper permanent magnet and the lower permanent magnet are installed at the upper side and the lower side of the metal plate, respectively, so that the magnetic force is generated in a vertical direction, and the upper permanent magnet and the lower permanent magnet and a central portion of the metal plate are vertically inserted into a bracket; the inner wall of the coil generating variable electromagnetic force when an electric signal of alternating frequency is accessed from the outside is combined with the outer wall of the bracket to form electromagnetic force in different directions on the upper side and the lower side, so that attractive force and repulsive force are generated, and the coil moves up and down to cause vibration.
15. The method of generating magnetic force according to claim 14, wherein edges of the metal plate and the upper and lower permanent magnets are coupled to the mass body, the mass body is coupled to the elastic member, and the elastic member supports the mass body and moves up and down.
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| KR1020190114550A KR102125489B1 (en) | 2019-09-18 | 2019-09-18 | magnetic force formation method and vertical vibration using upper and lower magnetic |
| KR10-2019-0114550 | 2019-09-18 |
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| CN111934514A true CN111934514A (en) | 2020-11-13 |
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| KR102125489B1 (en) | 2020-06-22 |
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