CN205544866U - Linear motor with buffering silencing device - Google Patents

Abstract

The utility model discloses a linear motor with buffering silencing device, including last housing assembly and lower housing assembly, it forms a cavity with lower housing assembly to go up housing assembly, be provided with mover assembly in the cavity, mover assembly includes the oscillator, the oscillator is near being provided with the buffering subassembly on last housing assembly's the up end. The buffering subassembly is for setting up the buffer glue line on housing assembly's up end. The utility model discloses after increasing the buffering subassembly, the amplitude is too big in the time of can effectively stopping the spring vibration results in the collision to go up the problem that the lower casing results in the noise because when the amplitude cross the main point collision when going up the lower casing mover assembly collision buffering earlier glue, and buffering glue to be the softwood expect have and cushion and the sound deadening.

Description

Linear motor with buffering silencing means

Technical field

This utility model relates to a kind of motor component, particularly relates to a kind of linear motor with buffering silencing means.

Background technology

Linear motor operation principle, to coil power supply, allows coil produce the magnetic field according to certain frequency conversion, and the magnetic field of conversion is with dynamic Magnet steel in sub-component is mutually exclusive or attracts, and spring does upper and lower amplitude under magneticaction, produces vibration sense.The most current is linear Motor has following 2 problems:

1. spring when being pulled up-down vibration by magnetic force likely amplitude excessive, cause mover collision upper casing or lower casing assembly, Form collision noise, have a strong impact on using effect.

2. product through falling fall test rear spring slightly deform, the spring after deformation collide during up-down vibration upper casing or Lower casing assembly, forms collision noise, has a strong impact on using effect.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of linear motor with buffering silencing means.

The purpose of this utility model is achieved through the following technical solutions, a kind of linear motor with buffering silencing means, Including upper casing assembly 1 and lower casing assembly 3, described upper casing assembly and lower casing assembly form a cavity, in described cavity Being provided with mover assembly 2, described mover assembly includes that oscillator 25, described oscillator are provided with on the upper surface of upper casing assembly Buffer Unit 4.

Further, described Buffer Unit is the cushion gum layer being arranged on the upper surface of case component.

Further, described oscillator central authorities offer a circular port, be fixedly installed bowl-shape and Open Side Down in described circular port Flux sleeve 24, is fixedly installed magnet steel 22 in described flux sleeve, described magnet steel lower surface is provided with magnetic conduction sheet 21, described linearly Motor also includes the spring 23 being provided with a centre bore, and described flux sleeve is positioned at centre bore.

Further, described upper casing assembly includes upper end cover 12 and the upper annular wall 11 being downwardly extending by upper end cover edge.

Further, described lower casing assembly includes bottom end cover 32 and is upwardly extended the lower annular wall 31 formed by bottom end cover edge； Described lower annular wall coordinates with upper annular wall；Being provided with a breach 34 in described lower annular wall, described bottom end cover central authorities are provided with ring Shape coil 33, loop coil has two lead ends, and two lead ends are stretched out by indentation, there.

The utility model has the advantage of:

1. after increasing Buffer Unit, the amplitude excessive problem causing collision upper and lower enclosure to cause noise when can effectively stop spring vibration, Because when amplitude excessive upper and lower enclosure to be collided mover assembly can first crusherbull zone glue, and buffering adhesive is soft material, have buffering and Sound deadening；

2. after increasing Buffer Unit, slightly deforming even if product falls to falling test rear spring in process, the spring after deformation is shaking up and down Colliding during Dong is also first crusherbull zone glue, and foam is soft material, has the effect of buffering and noise reduction, so increasing buffering adhesive Even if rear spring is slightly distorted also will not form collision noise.

Accompanying drawing explanation

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is made Described in further detail, wherein:

Fig. 1 is the structure diagram that this reality is novel；

Fig. 2 is mover assembly structure chart I；

Fig. 3 is mover assembly structure chart II；

Fig. 4 is upper casing assembly assumption diagram；

Fig. 5 is lower casing assembly assumption diagram；

Fig. 6 is spring assembly structure chart.

Detailed description of the invention

Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail；Should be appreciated that preferred embodiment Only for explanation this utility model rather than in order to limit protection domain of the present utility model.

As it can be seen, a kind of linear motor with buffering silencing means, including upper casing assembly 1 and lower casing assembly 3, institute Stating upper casing assembly and form a cavity with lower casing assembly, be provided with mover assembly 2 in described cavity, described mover assembly includes Oscillator 25, described oscillator is provided with Buffer Unit 4 on the upper surface of upper casing assembly.

Described oscillator central authorities offer a circular port, are fixedly installed bowl-shape and that Open Side Down flux sleeve in described circular port 24, it is fixedly installed magnet steel 22 in described flux sleeve, described magnet steel lower surface is provided with magnetic conduction sheet 21, and described linear motor is also Including being provided with the spring 23 of a centre bore, described flux sleeve is positioned at centre bore.

Described upper casing assembly includes upper end cover 12 and the upper annular wall 11 being downwardly extending by upper end cover edge.

Described lower casing assembly includes bottom end cover 32 and is upwardly extended the lower annular wall 31 formed by bottom end cover edge；Described lower ring Shape wall coordinates with upper annular wall；Being provided with a breach 34 in described lower annular wall, described bottom end cover central authorities are provided with loop coil 33, loop coil has two lead ends, and two lead ends are stretched out by indentation, there.

Operationally, external power source passes through circuit to linear motor described in the utility model, arrives coil, makes coil produce magnetic field, The magnetic field interaction that magnetic field produces with magnet steel, promotes the mover assembly of oscillator, flux sleeve, magnet steel and magnetic conduction sheet composition upwards to move Dynamic, after driving spring to be moved upward to extreme higher position simultaneously, elastic restoring force, move down, move back and forth the most up and down, reach Become vibrating effect.

By Buffer Unit, (the present embodiment uses buffering adhesive to linear motor described in the utility model, and buffering adhesive is soft material, has slow Punching and sound deadening) it is located on the upper surface putting upper casing assembly, reduce mover assembly and produce noise when vibration, it addition, also Be conducive to regulating buffering, improve the reliability requirement of linear motor.

Spring in the present embodiment, including the spring body of disc-shaped, the excircle of described spring body is provided with several location Block 231, described spring body center offers magnetic conduction trepanning 232, described spring body is additionally provided with several arc-shaped slots 233, described arc-shaped slot 233 is arranged between magnetic conduction trepanning 232 and excircle and rotates around magnetic conduction trepanning 232 and arranges；Respectively The lateral surface of described locating piece 231 is arc surface and each arc surface is concentric with magnetic conduction trepanning 232.By magnetic conduction trepanning 3 by bullet Spring body fits is on flux sleeve, and meanwhile, the locating piece 231 on spring body excircle is stuck on upper casing, is led to by arc Groove 233 realizes the deformation of spring body, had both eliminated collision noise, and can realize again damping, and effect is obvious.

As the further improvement of such scheme, described magnetic conduction trepanning 232 is provided with several arc grooves 234, each arc groove 234 And seamlessly transit between magnetic conduction trepanning 232.Arc groove 234 can increase the length of arc-shaped slot 233 in spring body, thus improves The deformability of spring body.

As the further improvement of such scheme, described locating piece has three, is evenly distributed on the excircle of spring body；Institute State arc groove and have three, be evenly distributed at the hole wall of magnetic conduction trepanning, arc groove and locating piece interlaced arrangement.Make location division and change Shape portion is interleaved, improves its deformation uniformity, enhances the stability of structure so that be not easy to problem on deformation occur after dropping.

Arc-shaped slot in the present embodiment has three groups, rotates interlaced arrangement around magnetic conduction trepanning successively, can make deformation force substep uniformly, Certainly, arc-shaped slot quantity herein is not limited to three groups, can be adjusted according to practical situation.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, it is clear that the skill of this area Art personnel can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if If these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this reality These change and modification are comprised with novel being also intended to.

Claims (5)

1. the linear motor with buffering silencing means, it is characterised in that: include upper casing assembly (1) and lower casing assembly (3), Described upper casing assembly and lower casing assembly form a cavity, are provided with mover assembly (2), described mover assembly in described cavity Including oscillator (25), described oscillator is provided with Buffer Unit (4) on the upper surface of upper casing assembly.

The most according to claim 1 with the linear motor of buffering silencing means, it is characterised in that: described Buffer Unit is for arranging Cushion gum layer on the upper surface of case component.

Linear motor with buffering silencing means the most according to claim 1, it is characterised in that: described oscillator central authorities offer There is a circular port, in described circular port, be fixedly installed bowl-shape and that Open Side Down flux sleeve (24), solid in described flux sleeve Surely being provided with magnet steel (22), described magnet steel lower surface is provided with magnetic conduction sheet (21), and described linear motor also includes being provided with in one The spring (23) of central hole, described flux sleeve is positioned at centre bore.

Linear motor with buffering silencing means the most according to claim 3, it is characterised in that: described upper casing assembly bag Include upper end cover (12) and the upper annular wall (11) being downwardly extending by upper end cover edge.

Linear motor with buffering silencing means the most according to claim 4, it is characterised in that: described lower casing group Part includes bottom end cover (32) and is upwardly extended the lower annular wall (31) formed by bottom end cover edge；Described lower annular wall and upper ring Shape wall coordinates；Being provided with a breach (34) in described lower annular wall, described bottom end cover central authorities are provided with loop coil (33), ring Shape coil has two lead ends, and two lead ends are stretched out by indentation, there.