CN208241560U - A kind of voice coil motor - Google Patents

Abstract

The utility model discloses a kind of voice coil motors, belong to motor field, its key points of the technical solution are that, including mechanical cover, magnetic closes shell and motor, the inside of mechanical cover is fixedly connected with magnetic closing shell, being internally embedded for mechanical cover is provided with motor, and motor is fitted tightly over the right side of magnetic closing shell, the inside of motor is fixedly connected with heat dissipating ring, the outer surface of heat dissipating ring, which is run through, is connected with thermal hole, and thermal hole is uniformly arranged in the outer surface of heat dissipating ring, the inside of motor is fixedly connected with fixing end, the inside of fixing end is connected together, and there are five limit snib, and five limit snibs are equally laid in the inside of fixing end.This kind of voice coil motor, fixing end is fixedly mounted in the inside of motor enables five be equally laid in inside fixing end limit snibs to be clamped stator by the way that fixing end to be socketed on stator, to which the stability of stator can be enhanced when stator generates rotating excitation field.

Description

A kind of voice coil motor

Technical field

The utility model relates to motor field, in particular to a kind of voice coil motor.

Background technique

Voice coil motor is a kind of direct-driving motor of fast-response, is placed in magnetic field by hot-wire coil and generates active force, To which electric energy is directly translated into linear motion mechanical energy without any intermediate conversion mechanism, still, existing voice coil is electric Machine, the fixing bolt of internal fixed stator is easy to loosen, thus the phenomenon that causing stator to be displaced, so that voice coil motor uses Effect is poor.

Authorization Notice No. is that the Chinese patent of CN106341029A discloses a kind of voice coil motor, including stator, mover and Coil provides the gravity compensation contrary with self gravity for mover by the way that two piece of second magnet steel is arranged in each of the coils Power realizes a wide range of adjusting of gravity compensation by adjusting the distance between two piece of second magnet steel, reduces to electric in coil The degree of dependence of stream, power consumption and calorific value caused by reducing because of curent change, improves the working efficiency and globality of voice coil motor Can, but the stability of stator is not good, displacement is easy to happen, and the heat dissipation effect of this kind of voice coil motor is poor, so that mistake The excessively high damage for be easy to causeing voice coil motor of temperature.

Utility model content

In view of the deficienciess of the prior art, it is fixed to enhance the purpose of the utility model is to provide a kind of voice coil motor The stability of son, is displaced so that avoiding stator.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of voice coil motor, including mechanical cover, magnetic closing shell and motor, the inside of the mechanical cover are fixedly connected with Magnetic closes shell, and being internally embedded for the mechanical cover is provided with motor, and the motor is fitted tightly over the magnetic closing shell Right side, the inside of the motor are fixedly connected with heat dissipating ring, and the outer surface of the heat dissipating ring, which is run through, is connected with thermal hole, and described Thermal hole is uniformly arranged in the outer surface of the heat dissipating ring, and the inside of the motor is fixedly connected with fixing end, the motor Inside is fixedly connected with stator, and the stator runs through the inside for being connected to the heat dissipating ring Yu the fixing end, the fixation The inside at end is connected together, and there are five limit snibs, and five limits snib is equally laid in the interior of the fixing end Portion.

Further, the mechanical cover is fixedly connected with mounting hole far from the side of motor, and the mounting hole is arranged On the central axis of the motor, being internally embedded for the mechanical cover is provided with conducting wire, and one end of the conducting wire and institute State motor connection, the connection of the other end and mechanical cover outer surface.

Further, through connection, there are four bolts for the upper surface of the magnetic closing shell, and four bolts are laid The surrounding in magnetic closing shell is set, the bottom of the magnetic closing shell is fixedly connected with bed course.

Further, the internal activity of the magnetic closing shell is connected with moving coil, and the inside of the magnetic closing shell is fixed It is connected with magnet, and the lower section of moving coil is arranged in magnet.

Further, the motor is fixedly connected with rotary servomotor far from the side of the mounting hole, and rotation is watched The outer surface for taking motor is equipped with strip groove.

Further, through shaft is connected with, one end of the shaft, which is run through, is connected to stator for the inside of the mounting hole Inside, the other end stretches out the outside of the mechanical cover, and the inner wall of the fixing end is fixedly connected with card hole, and the card hole It is equally distributed, and the position consistency of the position of opening of the card hole and limit snib.

Further, being internally embedded for the fixing end is provided with inner groovy, and the inner groovy and limit snib socket, The limit snib is fixedly connected with elastic slice far from a side external surface of inner groovy, and elastic slice is looped around on limit snib.

In conclusion the utility model has the following beneficial effects:

1, this kind of voice coil motor, fixing end is fixedly mounted in the inside of motor is made by the way that fixing end to be socketed on stator Stator can be clamped by obtaining five limit snibs being equally laid in inside fixing end, to generate rotating excitation field in stator When, it the stability of stator can be enhanced, avoids stator and is displaced, effective solution stator fixing bolt is easy to loosen, So that voice coil motor is easy to produce the problem of failure.

2, heat dissipating ring is fixedly mounted in the inside of motor in this kind of voice coil motor, thermally conductive by being uniformly arranged on heat dissipating ring Heat dissipating ring is socketed on stator by hole, and the air inside motor generates convection current by thermal hole, thus accelerate the flowing of air, The heat generated inside motor can be taken to the outside of motor by the air quickly flowed, to achieve the effect that heat dissipation, effectively Avoid motor operating temperature excessively high the problem of causing motor burning.

3, this kind of voice coil motor, mechanical cover inside be fixedly mounted magnetic close shell, by bolt by magnetic close shell into Row sealing the phenomenon that can be avoided leakage field, the utilization rate in magnetic field is reached so that moving coil and magnet are in closed environment To maximization, to effectively improve the efficiency of motor work.

4, this kind of voice coil motor is fixedly connected with bed course in the bottom of magnetic closing shell, and bed course is in regular cuboid, can be kept away Exempt from because bed course is irregular, so that magnetic field position deviates, the problem of causing work efficiency drop, and by bed course, it can reach The effect of damping, to solve the problems, such as moving coil job insecurity.

5, this kind of voice coil motor is enabled by elastic slice in the outer surface of limit snib around setting elastic slice and limits snib It is enough flexible, during being clamped stator, enable to limit snib that there is certain elastic limit, to effectively avoid The problem of limit snib is loosened because of stress.

Detailed description of the invention

Fig. 1 is the present embodiment overall structure figure；

Fig. 2 is the present embodiment internal structure of motor figure；

Fig. 3 is the present embodiment fixing end sectional view；

Fig. 4 is the present embodiment figure heat dissipating ring structure chart.

In figure, 1, mechanical cover；101, mounting hole；102, conducting wire；2, magnetic closes shell；201, bolt；202, moving coil； 203, magnet；204, bed course；3, motor；301, rotary servomotor；302, shaft；303, stator；304, heat dissipating ring；305, it leads Hot hole；4, fixing end；401, card hole；402, elastic slice；403, snib is limited；404, inner groovy.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of voice coil motor, including mechanical cover 1, magnetic Shell 2 and motor 3 are closed, the inside of mechanical cover 1 is fixedly connected with magnetic closing shell 2, closes shell 2 by magnetic and seal, so that mobile The phenomenon that coil 202 and magnet 203 are in closed environment, can be avoided leakage field, being internally embedded for mechanical cover 1 is provided with Motor 3, and motor 3 is fitted tightly over the right side of magnetic closing shell 2, the inside of motor 3 is fixedly connected with heat dissipating ring 304, heat dissipating ring 304 outer surface is through being connected with thermal hole 305, and thermal hole 305 is uniformly arranged in the outer surface of heat dissipating ring 304, by It is uniformly arranged thermal hole 305 on heat dissipating ring 304, heat dissipating ring 304 is socketed on stator 303, the air inside motor 3 is by leading Hot hole 305 generates convection current, thus accelerate the flowing of air, the heat band that the air quickly flowed can will generate inside motor 3 To the outside of motor 3, to achieve the effect that heat dissipation, the inside of motor 3 is fixedly connected with fixing end 4, and the inside of motor 3 is fixed It is connected with stator 303, and stator 303 runs through the inside for being connected to heat dissipating ring 304 Yu fixing end 4, the inside of fixing end 4, which engages, to be connected Snib 403 is limited there are five connecing, and five limit snibs 403 are equally laid in the inside of fixing end 4, pass through five and limit Stator 303 can be clamped by snib 403, so that the stability of stator 303 can be enhanced when stator 303 generates rotating excitation field, Stator 303 is avoided to be displaced.

Further, mechanical cover 1 is fixedly connected with mounting hole 101 far from the side of motor 3, and mounting hole 101 is arranged On the central axis of motor 3, being internally embedded for mechanical cover 1 is provided with conducting wire 102, and one end of conducting wire 102 and motor 3 connect Connect, the connection of the other end and 1 outer surface of mechanical cover, by mounting hole 101 to place shaft 302, and conducting wire 102 to The connecting pin of motor 3 and 1 outer surface of mechanical cover is connected, so that electric current can be passed on moving coil 202.

Further, through connection, there are four bolts 201 for the upper surface of magnetic closing shell 2, and four bolts 201 are uniformly arranged It is fixedly connected with bed course 204 in the bottom of the surrounding of magnetic closing shell 2, magnetic closing shell 2, magnetic is closed by shell 2 by bolt 201 and is fixed Stablize, so that magnetic closing shell 2 reaches closed environment, and the bed course 204 that magnetic closing 2 bottom of shell is arranged in can reach The effect of damping, thus the stability for keeping moving coil 202 to work.

Further, the internal activity of magnetic closing shell 2 is connected with moving coil 202, and the inside of magnetic closing shell 2 is fixedly connected There is magnet 203, and the lower section of moving coil 202 is arranged in magnet 203, is generated by the way that moving coil 202 is placed on magnet 203 Magnetic field in, enable 202 Forced rotation of moving coil, so that voice coil motor can rotate.

Further, motor 3 is fixedly connected with rotary servomotor 301, and rotating servo far from the side of mounting hole 101 The outer surface of motor 301 is equipped with strip groove, is rotated by rotary servomotor 301, turns to drive shaft 302 that can synchronize It is dynamic, and the strip groove of the outer surface setting of rotary servomotor 301 can spin up the heat inside servo motor 301 It distributes, to achieve the effect that reduce by 301 operating temperature of rotary servomotor, and rotary magnetic can be generated by stator 303 ?.

Further, through shaft 302 is connected with, one end of shaft 302, which is run through, is connected to stator for the inside of mounting hole 101 303 inside, the other end stretch out the outside of mechanical cover 1, and the inner wall of fixing end 4 is fixedly connected with card hole 401, and card hole 401 It is equally distributed, and the position consistency of the position of opening of card hole 401 and limit snib 403, can revolved by shaft 302 Turn by magnetic force line cutting and then generation output electric current in magnetic field, and card hole 401 limits snib 403 to place, so that limit Snib 403 can be stable the inside that fixing end 4 is set.

Further, being internally embedded for fixing end 4 is provided with inner groovy 404, and 403 sets of snib of inner groovy 404 and limit It connects, limits snib 403 far from a side external surface of inner groovy 404 and be fixedly connected with elastic slice 402, and elastic slice 402 is looped around limit It on snib 403, is socketed by inner groovy 404 and limit snib 403, can be avoided limit snib 403 and be displaced, so that Limit snib 403 can stablize clamping stator 303, and elastic slice 402 enables limit snib 403 to stretch, in clamping stator During 303, so that limit snib 403 has certain elastic limit, to effectively avoid limit snib 403 because of stress And the problem of loosening.

Working principle: firstly, magnetic closing shell 2 is fixedly mounted on the inside of mechanical cover 1 by bolt 201, pass through by The moving coil 202 inside magnetic closing shell 2 is arranged in be placed in the magnetic field that magnet 203 generates, enables moving coil 202 Forced rotation, so that voice coil motor can rotate, and magnetic closing shell 2 is sealing structure, so that moving coil 202 and magnetic The phenomenon that iron 203 is in closed environment, can be avoided leakage field, then, the inside of motor 3 are fixedly connected with stator 303, lead to Rotating excitation field can be generated by crossing stator 303, and shaft 302 by magnetic force line cutting and then can generate output electricity in rotating excitation field Stream, and card hole 401 is placing limit snib 403, enabling limit, snib 403 is stable is arranged in fixing end 4 And then portion can enhance the stability of stator 303 by limiting snib 403, so that avoiding voice coil motor is easy to produce event The problem of barrier.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (7)

1. a kind of voice coil motor, including mechanical cover (1), magnetic closing shell (2) and motor (3), it is characterised in that: described mechanical outer The inside of shell (1) is fixedly connected with magnetic closing shell (2), and being internally embedded for the mechanical cover (1) is provided with motor (3), and institute The right side that motor (3) is fitted tightly over magnetic closing shell (2) is stated, the inside of the motor (3) is fixedly connected with heat dissipating ring (304), the outer surface of the heat dissipating ring (304) is run through and is connected with thermal hole (305), and the thermal hole (305) is uniformly arranged It is fixedly connected with fixing end (4) in the inside of the outer surface of the heat dissipating ring (304), the motor (3), the motor (3) Inside is fixedly connected with stator (303), and the stator (303) is through being connected to the heat dissipating ring (304) and the fixing end (4) inside, the inside of the fixing end (4) is connected together, and there are five limits snib (403), and five limits snib (403) equally it is laid in the inside of the fixing end (4).

2. a kind of voice coil motor according to claim 1, it is characterised in that: the mechanical cover (1) is far from motor (3) Side is fixedly connected with mounting hole (101), and the mounting hole (101) is arranged on the central axis of the motor (3), described Being internally embedded for mechanical cover (1) is provided with conducting wire (102), and one end of the conducting wire (102) is connect with the motor (3), The connection of the other end and mechanical cover (1) outer surface.

3. a kind of voice coil motor according to claim 1, it is characterised in that: the upper surface of magnetic closing shell (2) is run through There are four bolt (201) for connection, and four bolts (201) are uniformly arranged the surrounding in magnetic closing shell (2), the magnetic The bottom of closing shell (2) is fixedly connected with bed course (204).

4. a kind of voice coil motor according to claim 1, it is characterised in that: the internal activity of magnetic closing shell (2) connects It is connected to moving coil (202), the inside of magnetic closing shell (2) is fixedly connected with magnet (203), and magnet (203) setting exists The lower section of moving coil (202).

5. a kind of voice coil motor according to claim 2, it is characterised in that: the motor (3) is far from the mounting hole (101) side is fixedly connected with rotary servomotor (301), and the outer surface of rotary servomotor (301) is recessed equipped with strip Slot.

6. a kind of voice coil motor according to claim 2, it is characterised in that: the inside of the mounting hole (101) is through company It is connected to shaft (302), the inside for being connected to stator (303) is run through in one end of the shaft (302), and the other end stretches out the machinery The inner wall of the outside of shell (1), the fixing end (4) is fixedly connected with card hole (401), and the card hole (401) is equally Distribution, and the position consistency of the position of opening of the card hole (401) and limit snib (403).

7. a kind of voice coil motor according to claim 1, it is characterised in that: the fixing end (4) is internally embedded setting Have inner groovy (404), and the inner groovy (404) and limit snib (403) socket, the limit snib (403) is far from indent One side external surface of slot (404) is fixedly connected with elastic slice (402), and elastic slice (402) is looped around in limit snib (403).