CN209281884U - Based on maglev sound play device - Google Patents
Based on maglev sound play device Download PDFInfo
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- CN209281884U CN209281884U CN201920276465.8U CN201920276465U CN209281884U CN 209281884 U CN209281884 U CN 209281884U CN 201920276465 U CN201920276465 U CN 201920276465U CN 209281884 U CN209281884 U CN 209281884U
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- turntable
- permanent magnet
- shell
- side permanent
- disk body
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Abstract
Based on maglev sound play device, including recording medium, turntable, shell, tone arm carrier, tone arm and magnetic cartridge equipped with turntable stylus, further include: the first turntable side permanent magnet, at least one shell side permanent magnet and electromagnetism correcting coil, first turntable side permanent magnet and at least one shell side permanent magnet are for generating suspension electromagnetic force, the electromagnetism correcting coil is used to control the suspension of the turntable, and the turntable is suspended in the top of the shell by the suspension electromagnetic force；Second turntable side permanent magnet and driving electromagnetic coil, second turntable side permanent magnet and driving electromagnetic coil are for generating electric rotating magnetic force, the driving electromagnetic coil is used to control the rotation of the turntable, and the turntable rotates on the top of the shell by the electric rotating magnetic force.It can ensure being rotated in as stable as possible under the relatively small quality of turntable and not vibrating for music media, the degree of wear of the mechanical part and stylus that make contact history reduces as far as possible.
Description
Technical field
The utility model embodiment is related to sound play-back technology field, and in particular to one kind is played based on maglev sound
Device.
Background technique
Vinyl record is because acoustically feel more fidelity and cheaper, the welcome of the people by all age brackets.Black glue
It is a kind of very original pure simulation tune, acoustical vibration ripple is burnt at black glue surface by continuously spiral, and stylus connects
Contact that black glue rag, shank can generate vibration with rag, vibration generates faint electroacoustic with moving magnet or coil cutting magnetic line
Signal, then hundreds or thousands times are amplified by pickup amplifier, it forms general power amplifier or active audio amplifier can received black glue music
Signal.
During carrying out sound broadcasting using vinyl record, in order to guarantee the play quality of sound, vinyl record will be with
Appropriate and stable speed rotation avoids any unnecessary acceleration, deceleration and vibration as small as possible.Due to electrically and mechanically
The quality problems of component, there may be unwanted vibrations for audio playing device itself, in addition, by surrounding space object vibration shadow
It rings, audio playing device can also generate vibration.For example, there may be connect for vinyl record and pedestal when room floor is walked
Touching, or due to being vibrated caused by sound amplification.
At this stage, the commercial various turntable suspension of production or selection turntable suspension material eliminate unnecessary vibration,
The biggish turntable of weight is generallyd use, thus in order to which the raising of sound quality causes playback equipment production cost to increase.It is real
On border, belt drive unit is most commonly used to for the rotation of the drive shaft of motor to be transmitted to the line shaft of turntable, the usual position of motor
Rotation function is transmitted under its pivot outer turret and is reduced with plastic tape since plastic tape absorbs most of friction and interference
The interference of motor low-frequency range.Existing stepping motor use directly drives, and still, these motor are necessarily designed to not
Any low-frequency noise can be generated on sound pick-up.
The turntable tone arm effect of vinyl record playback equipment is that sound pick-up is maintained above vinyl with stylus.Touch-control
Pen follows the spiral-shaped of the groove being engraved on record, and sound pick-up must be maintained on helicla flute by tone arm as accurately as possible
Side, while rubbing and vibrating as few as possible.Ideal tone arm is not generated in state of weightlessness, and according to helical orbit
The power transversely advanced.Its vertical tracking angle on helicla flute should be identical over the whole length, still, due to
Technology barrier and high price will not usually use other than top equipment.
Utility model content
For this purpose, the utility model embodiment provides one kind based on maglev sound play device, it can be ensured that music matchmaker
Being rotated in as stable as possible under the relatively small quality of turntable and not vibrating for body, makes the mechanical part and touch-control of contact history
The degree of wear of pen reduces as far as possible.
To achieve the goals above, the utility model embodiment provides the following technical solutions: being broadcast based on maglev sound
Device is put, including recording medium, turntable, shell, tone arm carrier, tone arm and magnetic cartridge equipped with turntable stylus, is also wrapped
It includes:
First turntable side permanent magnet, at least one shell side permanent magnet and electromagnetism correcting coil, first turntable side is forever
Magnet and at least one shell side permanent magnet are for generating suspension electromagnetic force, and the electromagnetism correcting coil is for controlling the turntable
Suspension, the turntable is suspended in the top of the shell by the suspension electromagnetic force；
Second turntable side permanent magnet and driving electromagnetic coil, second turntable side permanent magnet and driving electromagnetic coil are used for
Electric rotating magnetic force is generated, the driving electromagnetic coil is used to control the rotation of the turntable, and the turntable passes through the electric rotating
Magnetic force rotates on the top of the shell.
As the preferred embodiment based on maglev sound play device, under the upper surface of the shell and the turntable
Gap between surface is 1 to 200mm.
As the preferred embodiment based on maglev sound play device, the turntable includes disk body, on the upside of the disk body
The geometric center with metal tip is formed, the geometric center is for keeping the recording medium placed in the middle, the diameter of the disk body
Equal to or more than the diameter of vinyl record.
As the preferred embodiment based on maglev sound play device, the disc surfaces be formed with several grooves or
Shrinkage pool, each groove or shrinkage pool are for accommodating second turntable side permanent magnet, described in the bottom of the groove or shrinkage pool is used as
A part of the lower surface of disk body, and the opening of the groove or shrinkage pool is directed toward the inside or upper surface of the disk body, so that
Second turntable side permanent magnet is invisibly fixed in disk body.
As the preferred embodiment based on maglev sound play device, second turntable side permanent magnet is annularly distributed
At the outer rim of the disk body, the second turntable side permanent magnet is uniformly distributed along the circumferencial direction of disk body, and two adjacent second
The distance between turntable side permanent magnet is 2cm to 10cm, and the quantity of the second turntable side permanent magnet is the driving electromagnetic coil
The multiple of quantity.
As the preferred embodiment based on maglev sound play device, the disk body edge is equipped with shield, described
Shield is rigidly secured to the upper surface of disk body and in its whole thickness in recessed disk body.
As the preferred embodiment based on maglev sound play device, the thickness range of the shield be 0.1 to
2.5mm, the outer diameter of shield are less than the diameter of the disk body, and the geometric center of shield has circular hole, the diameter of the circular hole
The metal tip of the disk body is allowed to pass through.
As the preferred embodiment based on maglev sound play device, the turntable includes coating, and the coating is in circle
Disk shape, the outer diameter of coating are identical as the diameter of the turntable.
As the preferred embodiment based on maglev sound play device, the mirror-reflection for light is formed on the downside of turntable
Multiple reflecting surfaces, the lower surface of the recessed turntable of reflecting surface, reflecting surface is uniformly distributed in a ring, reflects table
The quantity in face is equal to the quantity of second turntable side permanent magnet.
As the preferred embodiment based on maglev sound play device, the shell is equipped with several optical sensors, and light passes
The equation of light of the sensor for separating reflecting surface reflection is different and scans the rotation speed of the turntable.
As the preferred embodiment based on maglev sound play device, the electromagnetism correcting coil is evenly distributed in institute
In the ring for stating shell side permanent magnet.
As the preferred embodiment based on maglev sound play device, the driving electromagnetic coil is equipped with two groups, every group
Including three driving electromagnetic coils, three driving electromagnetic coils in every group with 120 degree of angular distribution in horizontal loops, every group
In three driving electromagnetic coil center in axis, between two groups of driving electromagnetic coils in angle offset 40 to 80 degree.
It further include support leg as the preferred embodiment based on maglev sound play device, support leg is used in sound
Machinery twelve Earthly Branches support and deposit the turntable when playing device is in resting position.The support leg is connected to the upper of the shell
End, the quantity of support leg are 4, and the top of each support leg is the cone cell with circular cross section, and support leg through hole is vertical
Across the upper plate of the shell.
As the preferred embodiment based on maglev sound play device, the support leg is connected with servomotor, institute
It states servomotor and is located in the shell portion, support leg is hidden in the shell when sound play device is in resting position, watches
It takes in the synchronous hole improved and protrude into the turntable of support leg described in motor drive and the turntable is supported.
It further include control unit, lighting mechanism and control as the preferred embodiment based on maglev sound play device
Switch；Described control unit, which is used to control the power of solenoid current and direction change, makes electromagnetism correcting coil generate the electricity that suspends
Magnetic force and make drive electromagnetic coil generate electric rotating magnetic force；The lighting mechanism includes being arranged in the upper surface of the shell
Circular lamp；The control switch is for opening and closing sound play device.
The utility model embodiment has the advantages that through the first turntable side permanent magnet and at least one shell side permanent magnetism
Body generates suspension electromagnetic force, and electromagnetism correcting coil controls the suspension of turntable, and turntable is suspended in the upper of shell by suspension electromagnetic force
Side；Electric rotating magnetic force is generated by the second turntable side permanent magnet and driving electromagnetic coil, drives the rotation of solenoid controlled turntable
Turn, turntable rotates on the top of shell by electric rotating magnetic force.The technical solution of the utility model embodiment can ensure music
Being rotated in as stable as possible under the relatively small quality of turntable and not vibrating for media, makes mechanical part and the touching of contact history
The degree of wear of control pen reduces as far as possible, improves the sound quality of disc.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below
Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy
Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover
In enclosing.
Fig. 1 is provided by the embodiment of the utility model based on maglev sound play device schematic perspective view；
Fig. 2 be it is provided by the embodiment of the utility model remove after turntable and support leg be located at contraction state based on magnetcisuspension
Floating sound play device structural schematic diagram；
Fig. 3 be it is provided by the embodiment of the utility model remove after turntable and support leg be located at extended state based on magnetcisuspension
Floating sound play device structural schematic diagram；
Fig. 4 is that support leg provided by the embodiment of the utility model is located at filling based on the broadcasting of maglev sound for contraction state
Set positive structure diagram；
Fig. 5 is that support leg provided by the embodiment of the utility model is located at filling based on the broadcasting of maglev sound for extended state
Set positive structure diagram；
Fig. 6 is provided by the embodiment of the utility model based on maglev sound play device turntable elevational schematic view；
Fig. 7 is provided by the embodiment of the utility model based on maglev sound play device turntable diagrammatic cross-section；
Fig. 8 is provided by the embodiment of the utility model based on maglev sound play device interior of shell structural representation
Figure；
Fig. 9 is provided by the embodiment of the utility model based on the signal of maglev sound play device interior of shell section
Figure；
Figure 10 is provided by the embodiment of the utility model based on maglev sound play device lighting mechanism schematic diagram；
Figure 11 is provided by the embodiment of the utility model based on maglev sound play device broadcasting schematic diagram；
Figure 12 is automatically stopped to be provided by the embodiment of the utility model based on maglev sound play device playing process
Schematic diagram；
Figure 13 is stopped to be provided by the embodiment of the utility model based on maglev sound play device playing process manually
Schematic diagram；
In figure: 1, recording medium；2, turntable；201, disk body；202, metal tip；203, geometric center；3, shell；4, it sings
Arm carrier；5, tone arm；6, turntable stylus；7, the first turntable side permanent magnet；8, shell side permanent magnet；9, electromagnetism correcting coil；
10, the second turntable side permanent magnet；11, electromagnetic coil is driven；12, shield；13, coating；14, reflecting surface；15, light sensing
Device；16, control unit；17, support leg；18, servomotor；19, circular groove；20, circular lamp；21, lighting mechanism；22,
Control switch.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection
Range.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, provide a kind of based on maglev sound play device, including recording load
Body 1, turntable 2, shell 3, tone arm carrier 4, tone arm 5 and the magnetic cartridge 6 equipped with turntable stylus further include the first turntable side
Permanent magnet 7, at least one shell side permanent magnet 8 and electromagnetism correcting coil 9, first turntable side permanent magnet 7 and at least one
For shell side permanent magnet 8 for generating suspension electromagnetic force, the electromagnetism correcting coil 9 is used to control the suspension of the turntable 2, described
Turntable 2 is suspended in the top of the shell 3 by the suspension electromagnetic force.Second turntable side permanent magnet 10 and driving electromagnetic coil
11, second turntable side permanent magnet 10 and driving electromagnetic coil 11 are for generating electric rotating magnetic force, the driving electromagnetic coil
11 for controlling the rotation of the turntable 2, and the turntable 2 rotates on the top of the shell 3 by the electric rotating magnetic force.
Referring to fig. 4 and Fig. 5, in one embodiment based on maglev sound play device, the upper surface of the shell 3
Gap between the lower surface of the turntable 2 is 1 to 200mm.The turntable 2 includes disk body 201,201 upside of disk body
The geometric center 203 with metal tip 202 is formed, the geometric center 203 is placed in the middle for making the recording medium 1, described
The diameter of disk body 201 is equal to or more than the diameter of vinyl record.201 surface of disk body is formed with several grooves or shrinkage pool,
Each groove or shrinkage pool are for accommodating second turntable side permanent magnet 10, and the bottom of the groove or shrinkage pool is as the disk body
A part of 201 lower surface, and the opening of the groove or shrinkage pool is directed toward the inside or upper surface of the disk body 201, makes
Second turntable side permanent magnet 10 is obtained invisibly to be fixed in disk body 201.
Specifically, the material of turntable 2 is preferably plastics, there is low-gravity, can be poured into mold by injection molding
Or simply it can shape and be otherwise coupled to.There is a metal tip 202 in the geometric center 203 of turntable 2, is used for
Keep vinyl record placed in the middle, metal tip 202 has standard size and shape, to meet the need of centering and the fixation of vinyl record
It wants.In the inside of turntable 2, groove or shrinkage pool for installing permanent magnet is unfolded, disk body 201 can be made to rotate.Magnet uses
It dish-shaped design and is securely fixed in disk body 201.Because the outer circular edge of turntable 2 is from the outer circular of disk body 201
Edge is moved to its interior section 0 between 20mm, and preferably 2 millimeters.The wreath of the permanent neodium magnet of disk is at outer rim with ring
The expansion of shape shape, the distance between permanent neodium magnet of disk are 2 to 10cm, preferably 5cm, or the section precisely in ring diameter
The required distance of circle, to realize equal distribution for permanent magnetic body, and at the same time the quantity of magnet must be the quantity of electromagnetic coil
Multiple.
According to the polarization direction of permanent magnet, the magnetic force of permanent magnet is perpendicular to disk body 201, it means that each of ring is subsequent
The direction that magnet depends on field of magnetic forece orientation rotates 180 degree, or depending on having even number magnet in do not rotate and ring.Dish type
The diameter of permanent magnet is 5 between 20mm, it is therefore preferable to which 10mm, the height of disc permanent magnet is 1 between 10mm, it is therefore preferable to
4mm。
Referring to Fig. 6, Fig. 7 and Fig. 8, in one embodiment based on maglev sound play device, second turntable
Side permanent magnet 10 is annularly distributed at the outer rim of the disk body 201, circumference of the 2 side permanent magnet of the second turntable along disk body 201
Direction is uniformly distributed, and the distance between two adjacent second turntables side permanent magnet 10 is 2cm to 10cm, the second turntable side permanent magnetism
The quantity of body 10 is the multiple of the quantity of the driving electromagnetic coil 11.201 edge of disk body is equipped with shield 12, described
Shield 12 is rigidly secured to the upper surface of disk body 201 and in its whole thickness in recessed disk body 201.The shield
12 thickness range is 0.1 to 2.5mm, and the outer diameter of shield 12 is less than the diameter of the disk body 201, in the geometry of shield 12
The heart 203 has circular hole, and the diameter of the circular hole allows the metal tip 202 of the disk body 201 to pass through.
Specifically, the shield 12 made of soft iron is rigidly secured to the upper surface of disk body 201 and in its entire thickness
On degree in recessed disk body 201, so that the upper surface of disk body 201 keeps uniform.Shield 12 and disk body 201 share geometric center
203, the thickness range of shield 12 is between 0.1 and 2.5mm, preferably 0.5mm.The outer diameter of shield 12 is than disk body 201
Diameter small 1 to 10mm, preferably 3mm, therefore when in the recessed disk body 201 of shield 12, edge is invisible and at the same time protecting it
From corrosion.In its geometric center 203, shield 12 has the circular hole of diameter, and metal tip 202 is allowed to pass through.Shield 12
For preventing the magnetic force of permanent magnet from upwardly penetrating through, electromagnetic pick-up is located therein during operation.Shield 12 and permanent magnet
Vertical range, between 50mm, preferably between 10mm, increases the distance between iron and permanent magnet because passing through, neutralizes 2
Magnetic field of permanent magnet is bigger by the efficiency of the transition of iron.
Referring to Fig. 7, in one embodiment based on maglev sound play device, the turntable 2 includes coating 13, institute
The shape in disk form of coating 13 is stated, the outer diameter of coating 13 is identical as the diameter of the turntable 2.It is formed on the downside of turntable 2 for light
Multiple reflecting surfaces 14 of mirror-reflection, the lower surface of the recessed turntable 2 of reflecting surface 14, reflecting surface 14 is in a ring
It is uniformly distributed, the quantity of reflecting surface 14 is equal to the quantity of second turntable side permanent magnet 10.The shell 3 is equipped with several light
Sensor 15, the equation of light of the optical sensor 15 for separating the reflection of reflecting surface 14 is different and scans the rotation speed of the turntable 2.Institute
Electromagnetism correcting coil 9 is stated to be evenly distributed in the ring of shell side permanent magnet 8.The driving electromagnetic coil 11 is equipped with two
Group, every group includes three driving electromagnetic coils 11, and three driving electromagnetic coils 11 in every group are with 120 degree of angular distribution in water
In flat ring, the center of three driving electromagnetic coils 11 in every group is in axis, in angle between two groups of driving electromagnetic coils 11
Upper 40 to 80 degree of offset.
Specifically, reflecting surface 14 is different with the light reflectivity of turntable 2, reflecting surface 14 can be quasi- for optical sensor 15
The difference of true ground separate light reflection.One or more optical sensors 15, preferably two are scanned by the reflection of reflecting surface 14
The rotation speed of CD, and the information is provided for control unit 16, change direction and speed to can suitably adjust,
The electromagnetic field intensity that electromagnetic coil in shell 3 generates, magnetic force pass through the permanent magnet in disk body 201, accelerate institute to generate
The torque needed, the deceleration for maintaining constant speed and turntable 2 to rotate.
The suspension of turntable 2 is realized that the permanent magnetism neodium magnet is the shape of homogeneous magnetic circular slab, center by permanent neodium magnet
Positioned at the geometric center 203 of disk body 201.The internal diameter of circular slab is 2 between 8cm, it is therefore preferable to 4cm, and magnet is transversal
Face is preferably 10mm.The magnet is mounted on the center of 201 thickness of disk body, therefore is mechanically fixed and is hidden in beyond the invisible.Its magnetic
Power is advanced along the direction perpendicular to 201 surface of disk body, and magnetic field is reflected down.Therefore, magnetoreflection is generated between magnetoreflection.
Correction electromagnetic coil is responsible for the position of balance and turntable 2 of feeling relieved.
It further include support leg 17 in one embodiment based on maglev sound play device referring to Fig. 3 and Fig. 4, branch
Support foot 17 is used for the machinery twelve Earthly Branches when sound play device is in resting position and supports and deposit the turntable 2.The support leg 17
It is connected to the upper end of the shell 3, the quantity of support leg 17 is 4, and the top of each support leg 17 is with circular cross section
Cone cell, 17 through hole of support leg passes perpendicularly through the upper plate of the shell 3.The support leg 17 is connected with servomotor 18,
The servomotor 18 is located inside the shell 3, and support leg 17 is hidden in outer when sound play device is in resting position
In shell 3, servomotor 18 drive in the synchronous hole improved and protrude into the turntable 2 of the support leg 17 to the turntable 2 into
Row support.
Specifically, the diameter of support leg 17 is 5 between 20mm, it is therefore preferable to 10mm, the conical tip of support leg 17
Height 1 between 10mm, it is therefore preferable to 3mm.Support leg 17 with conical tip is in its raised position, leans against disk
On the circular groove 19 of body 201,19 width of circular groove is 0.5 to 10mm, the preferably smaller than diameter of support leg 17, so that support
The tip of foot 17 cannot contact reflecting surface 14, and reflecting surface 14 is located at the bottom of circular groove 19.The two of circular groove 19
There is an inclined-plane on a outer edge.Slope is identical as the angle of support leg 17.In this way, turntable 2 is leaned against into support leg 17
On will not cause abrasion and the deformation of contact surface, while the structure allows maximum centering of the turntable 2 in axis.It is broadcast in sound
When putting device and not running, support leg 17 is hidden in shell 3, therefore can only see their conical top.The hole of turntable 2 is
It is closed, prevent dust from entering shell 3.
Using servomotor 18, support leg 17 is increased to from 3 vertical synchronization of shell and suspends height more than the turntable 2 on magnetic pad
The height of degree.Before playing music, it is first turned on the electromagnetic mechanism for controlling rotation centering, then servomotor 18 is logical
Cross the support leg 17 in corresponding hole pulling shell 3.After playing last first song on vinyl record, or closing
Before sound play device, support leg 17 is promoted and arrives stand up position by servomotor 18, so that mechanically supporting wheel 2, prevent
Rotation stop disk 2 is fallen when electromagnetic mechanism deactivates.Support leg 17 increase after make in stand up position, disk body 201 be elevated 1 to
20mm, the 3mm above the suspension level on magnetic pad.During resting position or when sound play device is closed, support leg 17
Undertake the entire weight of turntable 2 and vinyl record.
It further include that control is single in one embodiment based on maglev sound play device referring to Fig. 8, Fig. 9 and Figure 10
Member 16, lighting mechanism 21 and control switch 22；Described control unit 16 is used to control the power of solenoid current and direction becomes
Change makes electromagnetism correcting coil 9 generate suspension electromagnetic force and make that electromagnetic coil 11 is driven to generate electric rotating magnetic force；The lighting mechanism
21 include the circular lamp 20 being arranged in the upper surface of the shell 3；The control switch 22 is broadcast for opening and closing sound
Put device.
When sound play device is connected, the stabilizing magnetic field of electromagnetism correcting coil 9 starts automatically.When music carrier is correct
It is arranged and tone arm 5 is when being activated, for 17 auto-folder of support leg in shell 3, driving electromagnetic coil 11 generates electric rotating magnetic force
Turntable 2 is driven to rotate.
Circular lamp 20 provides the ambient lighting of device during operation.The upper surface of the recessed shell 3 of circular lamp 20, so that ring
The edge surface of shape lamp 20 is flushed with the surface of shell 3.The cross section of circular lamp 20 is preferably rectangle, circular lamp 20 with a thickness of
1 to 30mm, preferably 2mm, and the width of circular lamp 20 is 5 to 40mm, preferably 11mm.The internal diameter of circular lamp 20 is 100
Between 350mm, it is therefore preferable to 230mm.Circular lamp 20 is made of translucent material.Circular lamp 20 is upward with the shape of vertical of scattering
The surface of shell 3 is traveled to, the gap between shell 3 and turntable 2 has visually been highlighted, circular lamp 20 can pass through remote controler
(not shown) is controlled.The sound play device of the technical solution of the utility model embodiment be it is general and be suitable for
The form of vinyl record plays the music of the simulated sound carrier of all known types and size, it can be ensured that the rotation of music media
Turn as stable as possible under the relatively small quality of turntable 2 and do not vibrate, makes the mechanical part and stylus of contact history
The degree of wear reduces as far as possible, improves the sound quality of disc.
It will be black for playing vinyl record by the technical solution of the utility model embodiment referring to Figure 11 and Figure 12
Glue disc is placed on turntable, is aligned centre bore with main shaft.Vinyl record is cleaned using dedicated disc brush, when cleaning is suitable
The groove of disc gently move.It completes to clean to disc edge with diagonal motion.Only when turntable is placed in support leg,
Clean the vinyl record being placed on turntable.It directly pulls forward, removes the protection cap of pickup.Applying downward power may result in
Stylus falls off.If stylus has fallen off or will fall off, it is only capable of output amount of bass.From OFF mode (9 o'clock of control switch
Direction) rotate clockwise control button to 33 (the o'clock directions 33.3rpm-12) or 45 (the o'clock direction 45rpm-3) modes, specifically
Depending on being suitble to the broadcasting revolving speed of disc.Tone arm is lifted from tone arm support, and moves it to vinyl record.By singing above track
Head is placed on the vinyl record wanted to listen to.Ensure for stylus to be placed on above vinyl record, in order to avoid damage.When suspension disk reaches just
True speed and when stablizing, the indicator light on control button will stop flashing, and tone arm will be reduced voluntarily, and stylus starts to fall
Contact disc.When tone arm reaches the end of disc, tone arm will be lifted voluntarily, and suspension disk will slowly stop rotating.Tone arm is lifted
After rising, then tone arm is moved back to tone arm support.Ensure to be completely disposed at tone arm in tone arm bracket, rather than just being placed on above it.Branch
Support foot can rise automatically and hold turntable.Control switch is rotated counterclockwise into closing (OFF) mode.Referring to Figure 13, work as needs
Stop playing a record manually, is lifted up carry arm bar, tone arm is moved back to tone arm support, it is ensured that tone arm is rested entirely on into tone arm bracket
It is interior, rather than just be placed on it top.Support leg can rise automatically and catch turntable.Fall carry arm bar.By the control switch inverse time
Needle rotates to closing (OFF) mode.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. being based on maglev sound play device, including recording medium (1), turntable (2), shell (3), tone arm carrier (4), sing
Arm (5) and magnetic cartridge (6) equipped with turntable stylus, which is characterized in that further include:
First turntable side permanent magnet (7), at least one shell side permanent magnet (8) and electromagnetism correcting coil (9), first turntable
Side permanent magnet (7) and at least one shell side permanent magnet (8) are used for generating suspension electromagnetic force, the electromagnetism correcting coil (9)
In the suspension for controlling the turntable (2), the turntable (2) is suspended in the top of the shell (3) by the suspension electromagnetic force；
Second turntable side permanent magnet (10) and driving electromagnetic coil (11), second turntable side permanent magnet (10) and driving electromagnetism
For coil (11) for generating electric rotating magnetic force, driving electromagnetic coil (11) is used to control the rotation of the turntable (2), described
Turntable (2) rotates on the top of the shell (3) by the electric rotating magnetic force.
2. it is according to claim 1 be based on maglev sound play device, which is characterized in that the shell (3) it is upper
Gap between surface and the lower surface of the turntable (2) is 1 to 200mm；
The turntable (2) includes disk body (201), and the geometric center with metal tip (202) is formed on the upside of the disk body (201)
(203), the geometric center (203) is for making the recording medium (1) between two parties, and the diameter of the disk body (201) is equal to or greatly
In the diameter of vinyl record.
3. according to claim 2 be based on maglev sound play device, which is characterized in that disk body (201) table
Face is formed with several grooves or shrinkage pool, and each groove or shrinkage pool are described for accommodating second turntable side permanent magnet (10)
The a part of the bottom of groove or shrinkage pool as the lower surface of the disk body (201), and the opening of the groove or shrinkage pool refers to
To the inside or upper surface of the disk body (201), so that second turntable side permanent magnet (10) is invisibly fixed on disk body
(201) in.
4. according to claim 3 be based on maglev sound play device, which is characterized in that second turntable side is forever
Magnet (10) is annularly distributed at the outer rim of the disk body (201), and the second turntable (2) side permanent magnet is along disk body (201)
Circumferencial direction is uniformly distributed, and the distance between two adjacent second turntables side permanent magnet (10) is 2cm to 10cm, the second turntable
The quantity of side permanent magnet (10) is the multiple of the quantity of driving electromagnetic coil (11).
5. according to claim 4 be based on maglev sound play device, which is characterized in that disk body (201) side
Shield (12) are equipped at edge, the shield (12) is rigidly secured to the upper surface of disk body (201) and in its entire thickness
On degree in recessed disk body (201)；
The thickness range of the shield (12) is 0.1 to 2.5mm, and the outer diameter of shield (12) is less than the disk body (201)
Diameter, the geometric center (203) of shield (12) have circular hole, and the diameter of the circular hole allows the metal of the disk body (201)
Tip (202) passes through.
6. according to claim 1 be based on maglev sound play device, which is characterized in that the turntable (2) includes
The outer diameter of coating (13), the coating (13) shape in disk form, coating (13) is identical as the diameter of the turntable (2)；
Multiple reflecting surfaces (14) of the mirror-reflection for light are formed on the downside of turntable (2), the reflecting surface (14) is recessed
The lower surface of the turntable (2), reflecting surface (14) are uniformly distributed in a ring, and the quantity of reflecting surface (14) is equal to described second
The quantity of turntable side permanent magnet (10)；
The shell (3) is equipped with several optical sensors (15), and optical sensor (15) is used to separate the light of reflecting surface (14) reflection
Difference and the rotation speed for scanning the turntable (2).
7. according to claim 1 be based on maglev sound play device, which is characterized in that the electromagnetism correcting coil
(9) it is evenly distributed in the ring of shell side permanent magnet (8)；
The driving electromagnetic coil (11) is equipped with two groups, and every group includes three driving electromagnetic coils (11), three drives in every group
Dynamic electromagnetic coil (11) with 120 degree of angular distribution in horizontal loops, three in every group drive the center of electromagnetic coil (11)
In axis, offset 40 to 80 is spent in angle between two groups of driving electromagnetic coils (11).
8. according to claim 1 be based on maglev sound play device, which is characterized in that further include support leg
(17), support leg (17) is used for the machinery twelve Earthly Branches support when sound play device is in resting position and deposits the turntable (2)；
The support leg (17) is connected to the upper end of the shell (3), and the quantity of support leg (17) is 4, each support leg
(17) top is the cone cell with circular cross section, and support leg (17) through hole passes perpendicularly through the upper plate of the shell (3).
9. according to claim 8 be based on maglev sound play device, which is characterized in that the support leg (17) is even
It is connected to servomotor (18), the servomotor (18) is located at the shell (3) inside, and sound play device is in static
Support leg (17) is hidden in shell (3) when position, and servomotor (18) drives the support leg (17) is synchronous to improve and stretch
Enter in the hole of the turntable (2) and the turntable (2) is supported.
10. according to claim 1 be based on maglev sound play device, which is characterized in that further include control unit
(16), lighting mechanism (21) and control switch (22)；Described control unit (16) be used for control solenoid current power and
Direction change makes electromagnetism correcting coil (9) to generate suspension electromagnetic force and make that electromagnetic coil (11) is driven to generate electric rotating magnetic force；
The lighting mechanism (21) includes the circular lamp (20) being arranged in the upper surface of the shell (3)；
The control switch (22) is for opening and closing sound play device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276465.8U CN209281884U (en) | 2019-03-05 | 2019-03-05 | Based on maglev sound play device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276465.8U CN209281884U (en) | 2019-03-05 | 2019-03-05 | Based on maglev sound play device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209281884U true CN209281884U (en) | 2019-08-20 |
Family
ID=67606456
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920276465.8U Expired - Fee Related CN209281884U (en) | 2019-03-05 | 2019-03-05 | Based on maglev sound play device |
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| Country | Link |
|---|---|
| CN (1) | CN209281884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718240A (en) * | 2019-10-29 | 2020-01-21 | 台州椒江中含乐器科技有限公司 | Deformed vinyl disc repairing equipment |
-
2019
- 2019-03-05 CN CN201920276465.8U patent/CN209281884U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718240A (en) * | 2019-10-29 | 2020-01-21 | 台州椒江中含乐器科技有限公司 | Deformed vinyl disc repairing equipment |
| CN110718240B (en) * | 2019-10-29 | 2021-04-27 | 南京溧水高新创业投资管理有限公司 | Deformed vinyl disc repairing equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 |