CN209593249U

CN209593249U - Linear motor

Info

Publication number: CN209593249U
Application number: CN201920450426.5U
Authority: CN
Inventors: 郭志焱; 李军; 兰德福
Original assignee: BAOLONG ELECTRONICS GROUP Co Ltd
Current assignee: Zhejiang Baolong Mechanical and Electrical Co., Ltd.
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2019-11-05
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses a kind of linear motors, including upper housing and lower case, it is connected between the upper housing and lower case by elastic slice, the upper housing and lower case combine to form accommodating cavity, magnet ring is provided in the accommodating cavity, magnet, coil, FPCB plate and mass block, the lower case center is equipped with connecting shaft, the FPCB sleeve-board is located at outside connecting shaft and is sticked in lower case, described magnet one end is connect with connecting shaft end, the other end is connect with magnet ring, the coil is circumferentially arranged along connecting shaft and is fixed on FPCB plate, clearance fit between the magnet ring and upper housing, the mass block is circumferentially arranged along magnet ring and is pressed on elastic slice, clearance fit between the mass block two sides and upper enclosure inner wall, the mass block height and mass block lower end surface to FPCB plate upper end interplanar distance The ratio between be greater than 1.5, structure is simple, be conducive to realize, increase body vibration effect while, ensure that integrally-built stability.

Description

Linear motor

Technical field

The utility model relates to motor technologies field, especially a kind of better linear motor of using effect.

Background technique

Linear motor, also referred to as linear electric machine, line motor, pusher motor etc., most common linear motor type are plates Formula, U-type groove formula and tubular type are a kind of technologies for converting electrical energy into linear motion mechanical energy, make to move by the mutual expelling force of magnet Dynamic element suspends, while directly driving the moving element by magnetic force, without as rotating motor, it is also necessary to via such as The transmission mechanisms such as gear set are driven, and therefore, the moving element that linear motor can enable it be driven carries out high acceleration, deceleration It moves back and forth, by the characteristic, linear motor can be applied in different manufacture processing technique fields, currently, such as half The fields such as conductor, electronics, photoelectricity, Medical Devices and automation control are widely applied, and existing linear motor is also with smaller body Product, stronger kinetic energy is targeted cache development, but existing linear motor, while increasing kinetic energy, overall stability is difficult to protect Card, reduces the service life and using effect of linear motor.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of linear motor, and structure is simple, is conducive to realize, increase While body vibration effect, integrally-built stability ensure that.The utility model provides a kind of linear motor, including upper casing Body and lower case are connected between the upper housing and lower case by elastic slice, and the upper housing and lower case combine to form accommodating Chamber is provided with magnet ring, magnet, coil, FPCB plate and mass block in the accommodating cavity, and the lower case center is equipped with company Spindle, the FPCB sleeve-board are located at outside connecting shaft and are sticked in lower case, and described magnet one end is connect with connecting shaft end, separately One end is connect with magnet ring, and the coil is circumferentially arranged along connecting shaft and is fixed on FPCB plate, the magnet ring and upper housing Between clearance fit, the mass block is circumferentially arranged along magnet ring and is pressed on elastic slice, in the mass block two sides and upper housing Clearance fit between wall, the ratio between the mass block height and mass block lower end surface to FPCB plate upper end interplanar distance are greater than 1.5.

The beneficial effect being arranged in this way is: being arranged to this form, by mass block height and mass block lower end surface to FPCB The ratio of plate upper end interplanar distance is set greater than 1.5, it is ensured that and the decrement of elastic slice is using identical elastic slice situation, this Kind form can be effectively to support mass block when motor operations, while bearing the active force that mass block vibration generates, and reduces because making Integrally-built unstability caused by firmly increasing.

The utility model is further arranged to the mass block and is annularly arranged, and the mass block center is formed with embedding Enter slot, the magnet ring is embedded forms encirclement of the mass block to magnet ring outer wall, the magnet ring upper surface and mass block in embedded groove Upper surface is concordantly arranged.

The beneficial effect being arranged in this way is: using the above scheme, so that the connection effect of mass block and magnet ring is more preferable, and one Property it is stronger, while traditional stepped ramp type mass block being improved to cricoid, in using the reasonable situation in space, increases quality The weight of block effectively increases the vibration output of mass block, to enhance the kinetic energy of motor, improves the using effect of motor, More preferably it is conducive to produce and process using the mass block of this structure simultaneously, effectively improves production and processing efficiency.

The utility model is further arranged to the mass block lower end surface and flushes setting with magnet lower end surface.

The beneficial effect being arranged in this way is, using the above scheme, the magnetic for further increasing mass block and being attached thereto Ring, magnet form whole stability, so that the globality of vibration becomes apparent, and stability is higher.

The utility model is further arranged to be formed with locating slot on the magnet ring, and the magnet is embedded the shape in locating slot It is fixedly connected at magnet ring.

The beneficial effect being arranged in this way is: using the above scheme, by the way that locating slot is arranged, can preferably fix with magnet Connection, guarantees the accuracy of position, improves the whole using effect of motor, improves the stability that motor uses.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Specific embodiment

A kind of linear motor, including upper housing 1 and lower case 2 are disclosed as seen from Figure 1, and the upper housing 1 is under It is connected between shell 2 by elastic slice 3, the upper housing 1 and the combination of lower case 2 form accommodating cavity 4, are arranged in the accommodating cavity 4 There are magnet ring 41, magnet 42, coil 43, FPCB plate 44 and mass block 45,2 center of lower case is equipped with connecting shaft, institute It states FPCB plate 44 to be set in outside connecting shaft and be sticked in lower case 2, described 42 one end of magnet is connect with connecting shaft end, another End is connect with magnet ring 41, and the coil 43 is circumferentially arranged along connecting shaft and is fixed on FPCB plate 44, the magnet ring 41 and Clearance fit between upper housing 1, the mass block 45 are circumferentially arranged and are pressed on elastic slice 3, the mass block 45 along magnet ring 41 Clearance fit between 1 inner wall of two sides and upper housing, 45 height of mass block and 45 lower end surface of mass block to 44 upper end of FPCB plate The ratio between interplanar distance is greater than 1.5.45 height of mass block and the ratio of 45 lower end surface of mass block to 44 upper end interplanar distance of FPCB plate are set It is set to and is greater than 1.5, it is ensured that the decrement of elastic slice 3 is using identical elastic slice situation, when this form can be with motor operations Effective support mass block, while the active force that mass block vibration generates is born, reduce whole caused by increasing because of active force The unstability of structure.

Above-mentioned mass block 45 is annularly formed with embedded groove in setting, 45 center of mass block, and the magnet ring 41 is embedding It is located in embedded groove and forms encirclement of the mass block 45 to 41 outer wall of magnet ring, 41 upper surface of magnet ring and 45 upper surface of mass block are flat Neat setting.The beneficial effect being arranged in this way is: using the above scheme, so that mass block 45 and the connection effect of magnet ring 41 are more preferable, Integraty is stronger, while traditional stepped ramp type mass block 45 being improved to cricoid, in using the reasonable situation in space, increases The weight of mass block 45 effectively increases the vibration output of mass block 45, to enhance the kinetic energy of motor, improves motor Using effect, while production and processing is more preferably conducive to using the mass block 45 of this structure, effectively improve production and processing efficiency.

Above-mentioned 45 lower end surface of mass block flushes setting with 42 lower end surface of magnet.The beneficial effect being arranged in this way is, in use Scheme is stated, mass block 45 is further increased and the magnet ring being attached thereto 41, magnet 42 forms whole stability, so that shake Dynamic globality becomes apparent, and stability is higher.

Locating slot 411 is formed on above-mentioned magnet ring 41, the magnet 42 is embedded to be formed and magnet ring 41 in locating slot 411 It is fixedly connected.The beneficial effect being arranged in this way is: using the above scheme, can preferably and magnet by the way that locating slot 411 is arranged 42 are fixedly connected, and guarantee the accuracy of position, improve the whole using effect of motor, improve the stability that motor uses.

The above embodiments are only the preferred embodiment of the utility model, and the right of the utility model cannot be limited with this Range, therefore, equivalent variations made according to the patent scope of the utility model, such as using similar technique, similar structures Equivalent product is still fallen within the scope of the utility model.

Claims

1. a kind of linear motor, including upper housing and lower case are connected between the upper housing and lower case by elastic slice, described Upper housing and lower case combine to form accommodating cavity, and magnet ring, magnet, coil, FPCB plate and mass block are provided in the accommodating cavity, The lower case center is equipped with connecting shaft, and the FPCB sleeve-board is located at outside connecting shaft and is sticked in lower case, described Magnet one end is connect with connecting shaft end, and the other end is connect with magnet ring, and the coil is circumferentially arranged and is fixedly installed along connecting shaft On FPCB plate, clearance fit between the magnet ring and upper housing, it is characterised in that: the mass block is circumferentially arranged simultaneously along magnet ring It is pressed on elastic slice, clearance fit between the mass block two sides and upper enclosure inner wall, under the mass block height and mass block The ratio between end face to FPCB plate upper end interplanar distance is greater than 1.5.

2. linear motor according to claim 1, it is characterised in that: the mass block is annularly arranged, the mass block Center is formed with embedded groove, and the magnet ring is embedded forms encirclement of the mass block to magnet ring outer wall, the magnetic in embedded groove Ring upper surface is concordant with mass block upper surface to be arranged.

3. linear motor according to claim 2, it is characterised in that: the mass block lower end surface is flushed with magnet lower end surface Setting.

4. linear motor as claimed in any of claims 1 to 3, it is characterised in that: it is fixed to be formed on the magnet ring Position slot, the magnet are embedded to be formed in locating slot and be fixedly connected with magnet ring.