CN214707477U

CN214707477U - Stacked voice coil motor

Info

Publication number: CN214707477U
Application number: CN202120764395.8U
Authority: CN
Inventors: 王佳伟
Original assignee: Suzhou Hezhong Sanwei Electronic Technology Co ltd
Current assignee: Suzhou Hezhong Sanwei Electronic Technology Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-12
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a stack formula voice coil motor, including the metallic cover body, coil, magnetic path and terminal, the inside of the metallic cover body is provided with the coil, and the inside of the metallic cover body and coil all is provided with the through-hole, the inside of the metallic cover body is provided with limit structure, be provided with the magnetic path on the lateral wall of coil, and the top of magnetic path is provided with the shell fragment, the bottom of coil is provided with down the shell fragment, the bottom of the metallic cover body is provided with base, and the top of base is provided with fixed knot down constructs, the one end fixedly connected with terminal of base down, the one end of the metallic cover body is provided with heat radiation structure. The utility model discloses a both sides of stationary blade all are provided with the partition groove, and the stationary blade can carry out stirring of minizone, is convenient for separate lug and draw-in groove, and the lug can block the inside of advancing the draw-in groove, with the firm installation of the metallic cover body on the top of underlay seat to make stacked voice coil motor have the dismouting function of being convenient for.

Description

Stacked voice coil motor

Technical Field

The utility model relates to a voice coil motor technical field specifically is a stack formula voice coil motor.

Background

Along with the high-speed development of society, the technological level's constantly improves, and electronic product has obtained vigorous development, and present electronic product all has the function of making a video recording, and stack formula voice coil motor is the important component of the module of making a video recording, and the main control camera carries out auto focus, but present stack formula voice coil motor has many problems or defects:

traditional stack formula voice coil motor is in the in-service use, and stack formula voice coil motor's shell adopts welding industry more, in case break down, can only carry out the overall change, makes stack formula voice coil motor be not convenient for dismantle the maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stack formula voice coil motor to propose the not convenient problem of dismantling the maintenance of stack formula voice coil motor in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a superposition type voice coil motor comprises a metal cover body, a coil, magnetic blocks and terminals, wherein the coil is arranged in the metal cover body, through holes are formed in the metal cover body and the coil, a limiting structure is arranged in the metal cover body, the magnetic blocks are arranged on the outer side wall of the coil, an upper elastic sheet is arranged at the top end of each magnetic block, a lower elastic sheet is arranged at the bottom end of the coil, a lower cushion seat is arranged at the bottom end of the metal cover body, a fixing structure is arranged at the top end of the lower cushion seat and comprises a fixing claw, a convex block, a fixing piece, a clamping groove and a separation groove, the fixing claw is fixedly connected to the top end of the lower cushion seat, the convex block is arranged on one side of the fixing claw, the fixing piece is movably connected to one side of the fixing claw, the clamping groove is formed in the fixing piece, the separation grooves are formed in two sides of the fixing piece, and the terminals are fixedly connected to one end of the lower cushion seat, one end of the metal cover body is provided with a heat dissipation structure.

Preferably, limit structure includes base, preformed groove, support column and limiting plate, the base sets up in the inside of the metal casing, the inside of base is provided with the preformed groove, the bottom fixedly connected with support column of base, the bottom fixedly connected with limiting plate of base.

Preferably, an integrated structure is formed between the base and the supporting columns, and the supporting columns and the limiting plates are annularly distributed on the base.

Preferably, the size of the clamping groove is larger than that of the protruding block, a clamping structure is formed between the protruding block and the clamping groove, and an integrated structure is formed between the fixing claw and the lower cushion seat.

Preferably, the heat radiation structure includes copper sheet, heat dissipation recess, pothook and heat conduction silica gel, the copper sheet sets up in the one end of the metal cover body, the inside of copper sheet is provided with the heat dissipation recess, all swing joint has the pothook around the copper sheet, be provided with heat conduction silica gel between copper sheet and the metal cover body.

Preferably, the heat dissipation grooves are provided with a plurality of heat dissipation grooves, and the heat dissipation grooves are distributed on the outer side wall of the copper sheet at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: this stack formula voice coil motor is rational in infrastructure, has following advantage:

(1) the separating grooves are formed in the two sides of the fixing piece, the fixing piece can be shifted within a small range, so that the protruding block and the clamping groove can be conveniently separated, the protruding block can be clamped into the clamping groove, and the metal cover body is firmly installed at the top end of the lower cushion seat, so that the stacked voice coil motor has a function of facilitating disassembly and assembly;

(2) the gap between the magnetic block and the metal cover body can be filled through the arrangement of the supporting columns, the inner side wall of the limiting plate is arranged in an arc shape and can be perfectly attached to the outer wall of the magnetic block, the position of the magnetic block can be conveniently and rapidly positioned in the assembling process, and meanwhile, the position of the magnetic block can be limited through the matching of the supporting columns and the limiting plate, so that the magnetic block is tightly attached to the outer side wall of the coil, and the phenomenon that the magnetic block deviates under the action of magnetic force is prevented;

(3) adopt the copper to make through the copper sheet, have good heat conductivity, and the setting of heat dissipation recess, the effectual area of contact that has improved copper sheet and air has accelerated thermal loss, and heat conduction silica gel strengthens the heat transfer at contact interface simultaneously, has realized the heat dissipation cooling to the formula of stacking voice coil motor.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic rear view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view of the structure of the limiting structure of the present invention.

In the figure: 1. a metal cover body; 2. a coil; 3. a through hole; 4. a limiting structure; 401. a base; 402. reserving a groove; 403. a support pillar; 404. a limiting plate; 5. an upper spring plate; 6. a magnetic block; 7. a fixed structure; 701. a fixed jaw; 702. a bump; 703. a fixing sheet; 704. a card slot; 705. a separation tank; 8. a lower cushion seat; 9. a terminal; 10. a lower spring plate; 11. a heat dissipation structure; 1101. a copper sheet; 1102. a heat dissipation groove; 1103. a hook; 1104. thermally conductive silicone.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a stacked voice coil motor comprises a metal cover body 1, a coil 2, a magnetic block 6 and a terminal 9, wherein the coil 2 is arranged inside the metal cover body 1, through holes 3 are formed in the metal cover body 1 and the coil 2, a limiting structure 4 is arranged inside the metal cover body 1, the limiting structure 4 comprises a base 401, a reserved groove 402, a supporting column 403 and a limiting plate 404, the base 401 is arranged inside the metal cover body 1, the reserved groove 402 is formed in the base 401, the supporting column 403 is fixedly connected to the bottom end of the base 401, and the limiting plate 404 is fixedly connected to the bottom end of the base 401;

an integrated structure is formed between the base 401 and the supporting column 403, the supporting column 403 and the limiting plate 404 are both annularly distributed on the base 401, the supporting column 403 can fill a gap between the magnetic block 6 and the metal cover body 1, and the inner side wall of the limiting plate 404 is arcuately arranged and can be perfectly attached to the outer wall of the magnetic block 6;

specifically, as shown in fig. 1 and 4, when in use, the base 401, the upper elastic sheet 5 and the magnetic block 6 are sequentially placed inside the metal cover body 1, the outer wall of the magnetic block 6 is tightly attached to the arc-shaped inner wall of the limiting plate 404, then the coil 2 is placed inside the metal cover body 1, and the position of the magnetic block 6 can be limited by the matching of the supporting column 403 and the limiting plate 404, so that the magnetic block 6 is tightly attached to the outer side wall of the coil 2, and the phenomenon that the magnetic block 6 is shifted under the action of magnetic force is prevented;

the outer side wall of the coil 2 is provided with a magnetic block 6, the top end of the magnetic block 6 is provided with an upper elastic sheet 5, the bottom end of the coil 2 is provided with a lower elastic sheet 10, the bottom end of the metal cover body 1 is provided with a lower cushion base 8, the top end of the lower cushion base 8 is provided with a fixing structure 7, the fixing structure 7 comprises a fixing claw 701, a convex block 702, a fixing sheet 703, a clamping groove 704 and a separation groove 705, the fixing claw 701 is fixedly connected to the top end of the lower cushion base 8, one side of the fixing claw 701 is provided with the convex block 702, one side of the fixing claw 701 is movably connected with the fixing sheet 703, the clamping groove 704 is arranged inside the fixing sheet 703, and the two sides of the fixing sheet 703 are provided with the separation grooves 705;

the size of the clamping groove 704 is larger than that of the bump 702, a clamping structure is formed between the bump 702 and the clamping groove 704, an integrated structure is formed between the fixed claw 701 and the lower cushion 8, the two sides of the fixed plate 703 are provided with separating grooves 705, and the fixed plate 703 can be shifted within a small range, so that the clamping state of the bump 702 and the clamping groove 704 can be conveniently adjusted;

specifically, as shown in fig. 1 and 3, when in use, a tool is used to shift the fixing plate 703 outward to separate the clamping groove 704 from the bump 702, so that the metal cover 1 can be separated from the upper side of the lower cushion 8, when in assembly, the inner wall of the fixing plate 703 is aligned with the fixing claws 701 at two sides, the metal cover 1 is laminated on the upper side of the lower cushion 8, the fixing plate 703 is inclined outward, when the clamping groove 704 is aligned with the bump 702, the fixing plate 703 is reset to clamp the bump 702 inside the clamping groove 704, so that the metal cover 1 and the lower cushion 8 are firmly fixed together;

one end of the lower pad base 8 is fixedly connected with a terminal 9, one end of the metal cover body 1 is provided with a heat dissipation structure 11, the heat dissipation structure 11 comprises a copper sheet 1101, a heat dissipation groove 1102, hooks 1103 and heat-conducting silica gel 1104, the copper sheet 1101 is arranged at one end of the metal cover body 1, the heat dissipation groove 1102 is arranged inside the copper sheet 1101, the hooks 1103 are movably connected around the copper sheet 1101, and the heat-conducting silica gel 1104 is arranged between the copper sheet 1101 and the metal cover body 1;

the plurality of heat dissipation grooves 1102 are arranged, and the heat dissipation grooves 1102 are distributed on the outer side wall of the copper sheet 1101 at equal intervals, so that the contact area of the copper sheet 1101 and air is effectively increased, and the air can take away heat more quickly;

specifically, as shown in fig. 2 and fig. 3, when the stacked voice coil motor is used, the copper sheet 1101 is made of copper, so that the copper sheet has good thermal conductivity, and the heat dissipation groove 1102 is formed, so that the contact area between the copper sheet 1101 and air is effectively increased, the heat loss is accelerated, meanwhile, the heat conduction silica gel 1104 enhances the heat transfer of the contact interface, and the heat dissipation and cooling of the stacked voice coil motor are realized.

The working principle is as follows: when the superposed voice coil motor is used, firstly, the superposed voice coil motor is assembled, the base 401, the upper elastic sheet 5 and the magnetic block 6 are sequentially placed inside the metal cover body 1, the outer wall of the magnetic block 6 is tightly attached to the arc-shaped inner wall of the limiting plate 404, then the coil 2 is placed inside the metal cover body 1, and the position of the magnetic block 6 can be limited by the matching of the supporting column 403 and the limiting plate 404, so that the magnetic block 6 is tightly attached to the outer side wall of the coil 2, and the phenomenon that the magnetic block 6 deviates under the action of magnetic force is prevented;

secondly, when the stacked voice coil motor needs to be disassembled, the fixing plate 703 is shifted outwards to separate the clamping groove 704 from the bump 702, so that the metal cover body 1 can be separated from the upper part of the lower cushion 8, when the stacked voice coil motor is assembled, namely, the inner wall of the fixing plate 703 is aligned with the fixing claws 701 on two sides, the metal cover body 1 is stacked above the lower cushion 8, the fixing plate 703 can incline outwards, when the clamping groove 704 is aligned with the bump 702, the fixing plate 703 can reset to enable the bump 702 to be clamped in the clamping groove 704, so that the metal cover body 1 and the lower cushion 8 are firmly fixed together;

finally, when stack formula voice coil motor is carrying out the use, can produce the heat, at this moment, the heat can be passed through heat conduction silica gel 1104 and is transmitted for copper sheet 1101, copper sheet 1101 adopts the copper to make, has good heat conductivity, and the setting of heat dissipation recess 1102, the effectual area of contact that has improved copper sheet 1101 and air, thermal loss has been accelerated, heat conduction silica gel 1104 strengthens the heat transfer at contact interface simultaneously, realized the heat dissipation cooling to stack formula voice coil motor, the use of this stack formula voice coil motor is finally accomplished.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a stack formula voice coil motor, includes the metal covering body (1), coil (2), magnetic path (6) and terminal (9), its characterized in that: the coil (2) is arranged in the metal cover body (1), the through holes (3) are formed in the metal cover body (1) and the coil (2), the limiting structure (4) is arranged in the metal cover body (1), the magnetic block (6) is arranged on the outer side wall of the coil (2), the upper elastic sheet (5) is arranged at the top end of the magnetic block (6), the lower elastic sheet (10) is arranged at the bottom end of the coil (2), the lower cushion seat (8) is arranged at the bottom end of the metal cover body (1), the fixing structure (7) is arranged at the top end of the lower cushion seat (8), the fixing structure (7) comprises a fixing claw (701), a convex block (702), a fixing sheet (703), a clamping groove (704) and a separation groove (705), the fixing claw (701) is fixedly connected to the top end of the lower cushion seat (8), and the convex block (702) is arranged on one side of the fixing claw (701), one side swing joint of stationary dog (701) has stationary blade (703), and the inside of stationary blade (703) is provided with draw-in groove (704), the both sides of stationary blade (703) all are provided with separation groove (705), one end fixedly connected with terminal (9) of underlay seat (8), the one end of the metal cover body (1) is provided with heat radiation structure (11).

2. A stacked voice coil motor as claimed in claim 1, wherein: limiting structure (4) include base (401), preformed groove (402), support column (403) and limiting plate (404), base (401) set up in the inside of the metal cover body (1), the inside of base (401) is provided with preformed groove (402), the bottom fixedly connected with support column (403) of base (401), the bottom fixedly connected with limiting plate (404) of base (401).

3. A stacked voice coil motor as claimed in claim 2, wherein: constitute integrated structure between base (401) and support column (403), support column (403) and limiting plate (404) all are cyclic annular distribution on base (401).

4. A stacked voice coil motor as claimed in claim 1, wherein: the size of the clamping groove (704) is larger than that of the protruding block (702), a clamping structure is formed between the protruding block (702) and the clamping groove (704), and an integrated structure is formed between the fixed claw (701) and the lower cushion seat (8).

5. A stacked voice coil motor as claimed in claim 1, wherein: the heat dissipation structure (11) comprises a copper sheet (1101), a heat dissipation groove (1102), a clamping hook (1103) and heat-conducting silica gel (1104), wherein the copper sheet (1101) is arranged at one end of the metal cover body (1), the heat dissipation groove (1102) is arranged inside the copper sheet (1101), the clamping hooks (1103) are movably connected to the periphery of the copper sheet (1101), and the heat-conducting silica gel (1104) is arranged between the copper sheet (1101) and the metal cover body (1).

6. A stacked voice coil motor as claimed in claim 5, wherein: the heat dissipation grooves (1102) are provided with a plurality of heat dissipation grooves, and the heat dissipation grooves (1102) are distributed on the outer side wall of the copper sheet (1101) at equal intervals.