CN205565982U - 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, it includes upper end cover and the last annular wall that is formed by upper end cover edge downwardly extending to go up housing assembly, housing assembly includes bottom end cover and the lower annular wall that is formed by the marginal upwards extension of bottom end cover down, annular wall coordinates with last annular wall down, the upper end cover inboard is provided with first buffering subassembly, the bottom end cover inboard is provided with second buffering subassembly. The utility model discloses increase in the time of can effectively stopping the spring vibration behind the bubble cotton that the amplitude is too big to result 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 bubble is cotton earlier, and the bubble cotton to be the softwood expect have and cushion and the sound deadening.

Description

A kind of 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, the magnetic field of conversion and mover Magnet steel in assembly is mutually exclusive or attracts, and spring does upper and lower amplitude under magneticaction, produces vibration sense.The most current linear motor There are 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, shape Become 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 under Case component, 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, bag Including upper casing assembly 1 and lower casing assembly 3, described upper casing assembly and lower casing assembly form a cavity, arrange in described cavity Mover assembly 2, described upper casing assembly is had to include 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 annular wall with Upper annular wall coordinates；It is provided with the first Buffer Unit 4 inside described upper end cover, inside described bottom end cover, is provided with the second Buffer Unit 5。

Further, described first Buffer Unit is foamed cotton layer, and described second Buffer Unit is foamed cotton layer.

Further, described mover assembly includes that oscillator 25, oscillator central authorities offer a circular port, is fixedly installed in described circular port Having bowl-shape and that Open Side Down flux sleeve 24, be fixedly installed magnet steel 22 in described flux sleeve, described magnet steel lower surface is provided with Magnetic conduction sheet 21, described linear motor also includes the spring 23 being provided with a centre bore, and described flux sleeve is positioned at centre bore.

Further, described lower annular wall being provided with a breach 34, described bottom end cover central authorities are provided with loop coil 33, toroid Circle has two lead ends, and two lead ends are stretched out by indentation, there.

Further, the foamed cotton layer of described first Buffer Unit is covered in inside upper end cover.

Further, the foamed cotton layer of described second Buffer Unit is arranged around loop coil.

The utility model has the advantage of:

1. the amplitude excessive problem causing collision upper and lower enclosure to cause noise when can effectively stop spring vibration after increasing foam, because working as During amplitude excessive upper and lower enclosure to be collided, mover assembly can first collide foam, and foam is soft material, has buffering and sound deadening；

2. after increasing foam, slightly deforming even if product falls to falling test rear spring in process, the spring after deformation is in up-down vibration process Middle collision is also first to collide foam, and foam is soft material, has buffering and the effect of noise reduction, even if so after increasing foam spring is slightly Light deformation 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 made into The detailed description of one step, 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 is only In order to this utility model being described rather than in order to limit protection domain of the present utility model.

A kind of linear motor with buffering silencing means, including upper casing assembly 1 and lower casing assembly 3, described upper casing assembly Forming a cavity with lower casing assembly, be provided with mover assembly 2 in described cavity, described upper casing assembly includes upper end cover 12 He The upper annular wall 11 being downwardly extending by upper end cover edge, described lower casing assembly include bottom end cover 32 and by bottom end cover edge to The upper lower annular wall 31 extending formation；Described lower annular wall coordinates with upper annular wall；The first buffering it is provided with inside described upper end cover Assembly 4, is provided with the second Buffer Unit 5 inside described bottom end cover.Described mover assembly includes that oscillator 25, oscillator central authorities offer One circular port, is fixedly installed bowl-shape and that Open Side Down flux sleeve 24, is fixedly installed in described flux sleeve in described circular port Having magnet steel 22, described magnet steel lower surface to be provided with magnetic conduction sheet 21, described linear motor also includes the spring 23 being provided with a centre bore, Described flux sleeve is positioned at centre bore.Being provided with a breach 34 in described lower annular wall, described bottom end cover central authorities are provided with toroid Circle 33, loop coil has two lead ends, and two lead ends are stretched out by indentation, there.Described first Buffer Unit is foamed cotton layer, It is covered in inside upper end cover；Described second Buffer Unit is foamed cotton layer；Arrange around loop coil.

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 to move up, 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 vibration Effect.

By Buffer Unit, (the present embodiment uses foam to linear motor described in the utility model, and foam is soft material, has buffering and disappears Sound effect) it is located on the lower surface of the upper and lower case component in upper surface putting upper casing assembly, reduce mover assembly and produce when vibration Noise, it addition, also help regulation buffering, improves 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 locating pieces 231, described spring body center offers magnetic conduction trepanning 232, and 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；Each described location The lateral surface of block 231 is arc surface and each arc surface is concentric with magnetic conduction trepanning 232.By magnetic conduction trepanning 3, spring body is set with On flux sleeve, meanwhile, the locating piece 231 on spring body excircle is stuck on upper casing, realizes bullet by arc-shaped slot 233 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 bullet The deformability of spring body.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, it is clear that the technology of this area 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 originally These amendments of utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model It is also intended to comprise these change and modification.

Claims (6)

1. a linear motor with buffering silencing means, it is characterized in that: include upper casing assembly (1) and lower casing assembly (3), described upper casing assembly and lower casing assembly form a cavity, mover assembly (2) it is provided with in described cavity, described upper casing assembly includes upper end cover (12) and the upper annular wall (11) being downwardly extending by upper end cover edge, and described lower casing assembly includes bottom end cover (32) and upwardly extended the lower annular wall (31) formed by bottom end cover edge；Described lower annular wall coordinates with upper annular wall；It is provided with the first Buffer Unit (4) inside described upper end cover, inside described bottom end cover, is provided with the second Buffer Unit (5).

The most according to claim 1, there is the linear motor of buffering silencing means, it is characterised in that: described first Buffer Unit is foamed cotton layer, and described second Buffer Unit is foamed cotton layer.

The linear motor with buffering silencing means the most according to claim 2, it is characterized in that: described mover assembly includes oscillator (25), oscillator central authorities offer a circular port, bowl-shape and that Open Side Down flux sleeve (24) it is fixedly installed in described circular port, magnet steel (22) it is fixedly installed in described flux sleeve, described magnet steel lower surface is provided with magnetic conduction sheet (21), described linear motor also includes the spring (23) being provided with a centre bore, and described flux sleeve is positioned at centre bore.

The linear motor with buffering silencing means the most according to claim 3, it is characterized in that: in described lower annular wall, be provided with a breach (34), 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.

The linear motor with buffering silencing means the most according to claim 2, it is characterised in that: the foamed cotton layer of described first Buffer Unit is covered in inside upper end cover.

The linear motor with buffering silencing means the most according to claim 3, it is characterised in that: the foamed cotton layer of described second Buffer Unit is arranged around loop coil.