CN210201689U - Low-cost voice coil motor - Google Patents

Abstract

The utility model discloses a low-cost voice coil motor, which comprises a motor shell and a damping mechanism, wherein a permanent magnet is arranged in the middle of one side in the motor shell, a magnet gasket is arranged on one side of the permanent magnet, a winding frame is sleeved outside the permanent magnet, windings are arranged at the upper end and the lower end of the winding frame, damping mechanisms are symmetrically arranged at the upper end and the lower end of one side of the winding frame, a transmission post is connected at the central position of one side of the winding frame, the damping mechanism comprises a plurality of elastic damping posts which are arranged at intervals, compression springs are sleeved outside the elastic damping posts, heat dissipation holes are arranged on the surfaces of two sides of the motor shell, a dust screen is arranged at the top end inside the heat dissipation holes, two ends of the bottom side surface of the dust screen are fixedly connected with one end of a connecting rod, the other end of the connecting, the service life is prolonged, and the maintenance or replacement cost is reduced.

Description

Low-cost voice coil motor

Technical Field

The utility model relates to an electrical equipment technical field specifically is a low-cost voice coil motor.

Background

With the continuous improvement of ultra-precision machining and measurement and micro-nano technology, the technical precision and the service life of precision equipment are seriously influenced by external environment interference vibration and vibration generated by the equipment. Therefore, the vibration isolation device matched with the vibration isolation device is required to be provided to ensure the normal use of precision equipment, and meanwhile, higher requirements are put on the vibration isolation performance of the vibration isolation device. Present voice coil motor is owing to its high-speed reciprocating linear motion's characteristics, mainly be fit for the closed loop servo control system who is used for the short stroke, present voice coil motor mainly adopts the installation guide rail to make the coil move along the guide rail, the precision of transmission power has been guaranteed, but its vibration itself appears transmitting outward easily and can not effectively keep apart to outside vibration, the technical precision and the life of precision equipment are being influenced, and simultaneously, present voice coil motor radiating effect is poor, continuous operation can make voice coil motor inside subassembly take place deformation, influence precision and life-span, voice coil motor damages the back, need change or maintenance, use cost has been increased, in order to solve above-mentioned problem, consequently, design a low-cost voice coil motor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-cost voice coil motor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a low-cost voice coil motor comprises a motor shell and a damping mechanism, and is characterized in that a permanent magnet is arranged in the middle of one side in the motor shell, a magnet gasket is arranged on one side of the permanent magnet, a winding frame is sleeved outside the permanent magnet, windings are arranged at the upper end and the lower end of the winding frame, the damping mechanism is symmetrically arranged at the upper end and the lower end of one side of the winding frame, a transmission column is connected at the central position of one side of the winding frame, the damping mechanism comprises a plurality of elastic damping columns which are arranged at intervals, sliding blocks which are connected with sliding rails in a sliding manner are arranged at the two ends of the elastic damping columns, the two sliding rails are respectively fixedly connected with the motor shell and the winding frame, compression springs are sleeved outside the elastic damping columns, heat dissipation holes are formed in the surfaces of the two sides of the motor shell, both ends fixed connection connecting rod one end of dust screen bottom surface, the connecting rod other end is installed in holding intracavity portion of fixed block, just fixed block fixed connection is in motor housing's radiating hole inner wall.

Furthermore, the through-hole that motor housing was passed to transmission post right side one end extends outward, just be equipped with rubber elasticity packing ring between motor housing's through-hole inner wall and the transmission post.

Furthermore, the heat dissipation holes are of a convex structure.

Furthermore, the dust screen and the motor housing are located on the same plane.

Further, the motor housing is made of aluminum or plastic.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model improves the structure of the voice coil motor, and effectively buffers the vibration generated when the voice coil motor transmits motion through the arrangement of the damping mechanism and the rubber elastic washer; the heat dissipation effect of the voice coil motor can be accelerated by arranging the heat dissipation holes, the dustproof net, the connecting rod and the fixing block on the motor shell, the dust can be effectively prevented from entering the voice coil motor by the dustproof net, the service life of the voice coil motor is prolonged, and the damage of the voice coil motor is reduced, so that the maintenance or replacement cost of the voice coil motor is reduced; the utility model discloses a voice coil motor overall structure is compact, low in manufacturing cost, excellent in use effect is fit for using widely.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the damping mechanism of the present invention;

fig. 3 is a schematic view of the internal amplification structure of the heat dissipation hole of the present invention.

In the figure: 1. a motor housing; 2. a permanent magnet; 3. a magnet pad; 4. a winding frame; 5. a rubber elastic washer; 6. a drive post; 7. winding; 8. a damping mechanism; 9. heat dissipation holes; 10. a dust screen; 11. a connecting rod; 12. a fixed block; 13. a slide rail; 14. an elastic shock-absorbing column; 15. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a low-cost voice coil motor comprises a motor shell 1 and a damping mechanism 8 and is characterized in that a permanent magnet 2 is arranged in the middle of one side inside the motor shell 1, a magnet gasket 3 is arranged on one side of the permanent magnet 2, a winding frame 4 is sleeved outside the permanent magnet 2, windings 7 are arranged at the upper end and the lower end of the winding frame 4, the damping mechanism 8 is symmetrically arranged at the upper end and the lower end of one side of the winding frame 4, a transmission post 6 is connected to the central position of one side of the winding frame 4, the damping mechanism 8 comprises a plurality of elastic damping posts 14 arranged at intervals, sliding blocks connected with sliding rails 13 are arranged at the two ends of each elastic damping post 14, the two sliding rails 13 are fixedly connected with the motor shell 1 and the winding frame 4 respectively, a compression spring 15 is sleeved outside a heat dissipation hole of each elastic damping post 14, and 9 is arranged on the surface of the two sides of one end, the inside top of louvre 9 is equipped with dust screen 10, dust screen 10 bottom surface both ends fixed connection connecting rod 11 one end, the connecting rod 11 other end is installed in holding intracavity portion of fixed block 12, just fixed block 12 fixed connection is in motor housing 1's louvre 9 inner wall.

Furthermore, the through-hole that motor housing 1 was passed to 6 right side one ends of transmission post outwards extends, just be equipped with rubber elasticity packing ring 5 between motor housing 1's the through-hole inner wall and transmission post 6.

Further, the heat dissipation holes 9 are in a convex structure.

Further, the dust screen 10 and the motor housing 1 are located on the same plane.

Further, the motor housing 1 is made of aluminum or plastic.

The working principle is as follows: in the actual use and working process of the voice coil motor, the winding wire 7 is electrified, the winding wire 7 generates a rightward force in a magnetic field generated by the permanent magnet 2 through the electrified winding wire 7, the winding wire frame 4 and the transmission column 6 move rightwards together, in the movement process of the winding wire frame 4 and the transmission column 6, the sliding blocks at the upper end and the lower end of the elastic shock absorption column 14 move along the sliding rail 13, meanwhile, the compression spring 15 sleeved on the elastic shock absorption column 14 effectively buffers the vibration generated in the movement process, the outward transmission of the self vibration is avoided, the vibration generated by the transmission column 6 is absorbed and weakened through the rubber elastic gasket 5, and the voice coil motor keeps the movement stability by utilizing the arrangement; meanwhile, when the voice coil motor works for a long time, the generated heat is discharged outwards through the heat dissipation holes 9, the heat dissipation effect of the voice coil motor can be accelerated, and dust can be effectively prevented from entering the motor shell 1 by the arrangement of the dustproof net 10, so that the service life of the voice coil motor is prolonged, the damage of the voice coil motor is reduced, and the maintenance or replacement cost of the voice coil motor is effectively reduced; the utility model discloses a voice coil motor overall structure is compact, low in manufacturing cost, excellent in use effect is fit for using widely.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a low-cost voice coil motor, includes motor housing (1) and damper (8), its characterized in that, motor housing (1) inside one side middle part is equipped with permanent magnet (2), permanent magnet (2) one side is equipped with magnet gasket (3), permanent magnet (2) outside cup joints and is equipped with wire winding frame (4), wire winding frame (4) upper and lower both ends are equipped with wire winding (7), wire winding frame (4) one side upper and lower both ends symmetry is equipped with damper (8), transmission post (6) are connected to wire winding frame (4) one side central authorities 'position, damper (8) are including a plurality of elasticity shock attenuation post (14) that the interval set up, elasticity shock attenuation post (14) both ends are equipped with slide rail (13) sliding connection's slider, and two slide rail (13) respectively with motor housing (1), Wire winding frame (4) fixed connection, compression spring (15) are cup jointed to elasticity shock attenuation post (14) outside, motor housing (1) is close to and is equipped with louvre (9) in transmission post (6) one end both sides surface, louvre (9) inside top is equipped with dust screen (10), side both ends fixed connection connecting rod (11) one end at the bottom of dust screen (10), connecting rod (11) other end is installed in holding intracavity portion of fixed block (12), just fixed block (12) fixed connection is in louvre (9) inner wall of motor housing (1).

2. A low cost voice coil motor as claimed in claim 1, wherein: the through-hole that transmission post (6) right side one end passed motor housing (1) extends outward, just be equipped with rubber elasticity packing ring (5) between motor housing's (1) through-hole inner wall and transmission post (6).

3. A low cost voice coil motor as claimed in claim 1, wherein: the heat dissipation holes (9) are of a convex structure.

4. A low cost voice coil motor as claimed in claim 1, wherein: the dustproof net (10) and the motor shell (1) are located on the same plane.

5. A low cost voice coil motor as claimed in claim 1, wherein: the motor shell (1) is made of aluminum or plastic.

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