CN102810967B - Voice coil motor - Google Patents

Abstract

A kind of voice coil motor, comprises a coil groups and a shell fragment, and described coil groups comprises a body and winding wire on this body. Described body comprises an end, and described shell fragment is arranged on described end and described shell fragment comprises the first plate body and the second plate body that are separated from each other. Described the first plate body is provided with first electrode, and described the second plate body is provided with second electrode. Two terminations of described wire are respectively welded to described the first electrode and described the second electrode. Described end and described shell fragment that described shell fragment of the present invention is positioned at described body comprise the first plate body and the second plate body that are separated from each other, and the two ends of wire are respectively welded to described the first electrode and the second electrode, convenient welding.

Description

voice coil motor

technical field

The present invention relates to a driving device, in particular to a voice coil motor.

Background technique

The voice coil motor has the advantage of small size and is suitable as a short-distance actuator in electronic products (such as digital cameras, mobile phones, digital video cameras, etc.). An existing voice coil motor includes a coil set and two shrapnels. The coil set includes a cylinder and a wire wound outside the cylinder to form a plurality of coils. The two elastic pieces are respectively located at two ends of the coil set, and each elastic piece is integrally formed by metal stamping. The two ends of the wire are respectively welded to the two elastic pieces, and the two elastic pieces are respectively connected to positive and negative poles of a power supply to supply power to the coil. However, for this kind of voice coil motor, after the two elastic pieces are assembled to the two ends of the coil group, one of the elastic pieces needs to be directed towards the operator, and the operator welds one end of the wire to the corresponding elastic piece, and then turns over the The coil group makes the other shrapnel face the operator, and then the other end is welded to the corresponding other shrapnel, which is inconvenient for welding.

Contents of the invention

In view of this, it is necessary to provide a voice coil motor that is easy to weld.

A voice coil motor includes a coil set and an elastic sheet, and the coil set includes a body and a wire wound on the body. The body includes an end portion, the elastic piece is arranged on the end portion, and the elastic piece includes a first plate body and a second plate body separated from each other. The first plate is provided with a first electrode, and the second plate is provided with a second electrode. Two ends of the wire are respectively welded to the first electrode and the second electrode.

Compared with the prior art, the elastic piece of the present invention is located at the end of the body, and the elastic piece includes a first plate body and a second plate body separated from each other, and the two ends of the wire are respectively welded to the first plate body and the second plate body. The electrode and the second electrode are conveniently welded.

Description of drawings

FIG. 1 is an exploded perspective view of a voice coil motor according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view of an elastic piece of the voice coil motor shown in FIG. 1 .

FIG. 3 is a perspective assembly view of the voice coil motor shown in FIG. 1 .

Explanation of main component symbols

voice coil motor 100 shrapnel 10 first board 12 first frame 121 first section 1211 second section 1212 third section 1213 first corner 121a second corner 121b first spring arm 1214 first abutment piece 1215 second spring arm 1216 Second abutment piece 1217 first positioning gap 1218 first electrode 1219 first channel 1220 third positioning gap 1221 second board 14 second frame 141 fourth section 1411 fifth section 1412 Sixth section 1413 third corner 141a fourth corner 141b third boom 1414 third abutment piece 1415 fourth elastic arm 1416 Fourth abutment piece 1417 Second Positioning Notch 1418 second electrode 1419 second channel 1420 fourth positioning gap 1421 coil group 20 ontology twenty two Main body 221 first end 222 board part 2221 first surface 2222 second surface 2223 positioning post 2224 second end 223 containment hole 224 wire twenty four end 241, 242

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

detailed description

Please refer to FIG. 1 and FIG. 2 , which illustrate a voice coil motor 100 according to a preferred embodiment of the present invention. The voice coil motor 100 includes an elastic piece 10 and a coil assembly 20 .

The elastic piece 10 includes a first board 12 and a second board 14 separated from the first board 12 .

The first plate body 12 and the second plate body 14 are formed by stamping metal sheets through a stamping die. The first plate body 12 includes a first outer frame 121 that is substantially flat. The first outer frame 121 is substantially U-shaped and includes a first plate segment 1211 , a second plate segment 1212 and a third plate segment 1213 . The first plate section 1211 is roughly rectangular. The second plate segment 1212 is vertically connected to one end of the first plate segment 1211 and forms an arc-shaped first corner 121 a with the first plate segment 1211 . The third plate segment 1213 is vertically connected to an end of the first plate segment 1211 away from the second plate segment 1212 and forms an arc-shaped second corner 121b with the first plate segment 1211 . The first plate section 1211 extends from a place close to the first corner 121a and has a substantially L-shaped first elastic arm 1214, and the first elastic arm 1214 extends along a direction parallel to the first plate section 1211. The end of the first elastic arm 1214 is bent toward the first plate segment 1211 to form a crescent-shaped first abutting piece 1215, and the first abutting piece 1215 is located at the second corner 121b. The third plate section 1213 extends a substantially L-shaped second elastic arm 1216 from the second corner 121b, and the extension direction of the second elastic arm 1216 is parallel to the third plate section 1213 and extends out In the third plate segment 1213 , the end of the second elastic arm 1216 is bent to form a meniscus-shaped second abutting piece 1217 . A substantially rectangular first positioning gap 1218 is formed between the first abutting piece 1215 and the second abutting piece 1217 . A substantially circular first electrode 1219 is provided in the middle of the second abutting piece 1217, and a substantially arc-shaped electrode 1219 is provided on the periphery of the first electrode 1219 and runs through the second abutting piece 1217. The first channel 1220 of .

The shape of the second plate body 14 is basically the same as that of the first plate body 12 . The second board body 14 includes a substantially flat second outer frame 141 . The second outer frame 141 is substantially U-shaped and includes a fourth plate segment 1411 , a fifth plate segment 1412 and a sixth plate segment 1413 . The fourth plate segment 1411 is roughly rectangular. The fifth plate segment 1412 is vertically connected to one end of the fourth plate segment 1411 and forms an arc-shaped third corner 141 a with the fourth plate segment 1411 . The sixth plate segment 1413 is vertically connected to the other end of the fourth plate segment 1411 away from the fifth plate segment 1412 and forms an arc-shaped fourth corner 141b with the fourth plate segment 1411 . The fourth plate section 1411 extends from a place close to the third corner 141a and has a substantially L-shaped third elastic arm 1414, and the third elastic arm 1414 extends along a direction parallel to the fourth plate section 1411. , the end of the third elastic arm 1414 is bent toward the fourth plate segment 1411 to form a crescent-shaped third abutting piece 1415, and the third abutting piece 1415 is located at the fourth corner 141b . The sixth plate section 1413 extends a substantially L-shaped fourth elastic arm 1416 from the fourth corner 141b. The extension direction of the fourth elastic arm 1416 is parallel to the sixth plate section 1413 and extends Out of the sixth plate segment 1413 , the end of the fourth elastic arm 1416 is bent to form a crescent-shaped fourth abutting piece 1417 . A substantially rectangular second positioning gap 1418 is formed between the third abutting piece 1415 and the fourth abutting piece 1417 . A substantially circular second electrode 1419 is provided in the middle of the third abutting piece 1415 , and a substantially arc-shaped second electrode 1419 is provided on the periphery of the second abutting piece 1415 and runs through the third abutting piece 1415 . The second channel 1420 of .

The second abutment piece 1217 is correspondingly located at the third corner 141a so that the first abutment piece 1215 is opposite to the third abutment piece 1415, and the second abutment piece 1217 is opposite to the third abutment piece 1217. A third positioning gap 1221 is formed between the pieces 1415 . The fourth abutting piece 1417 is correspondingly located at the first corner 121a so that the second abutting piece 1217 is opposite to the fourth abutting piece 1417, and the second abutting piece 1217 is opposite to the fourth abutting piece 1217. A fourth positioning gap 1421 is formed between the pieces 1417 .

The coil set 20 includes a body 22 and a wire 24 wound on the body 22 . The body 22 is made of insulating material such as plastic. The body 22 is substantially hollow cylindrical and includes a substantially cylindrical body portion 221 , a first end portion 222 located at one end of the body portion 221 , and a second end portion 223 located at the other end of the body portion 221 . The body 22 also defines a receiving hole 224 passing through the first end portion 222 , the main body portion 221 and the second end portion 223 . The accommodating hole 224 can be used for accommodating optical components (not shown). The first end portion 222 includes a substantially square flat plate portion 2221 . The plate portion 2221 includes a first surface 2222 away from the main body portion 221 , a second surface 2223 opposite to the first surface 2222 , and four substantially rectangular parallelepiped positioning columns 2224 . Each positioning column 2224 is formed by extending vertically upward from the first surface 2222, and the four positioning columns 2224 are evenly distributed on the first surface 2222 and arranged near the periphery of the receiving hole 224. The four positioning columns 2224 corresponds to the first positioning notch 1218 , the second positioning notch 1418 , the third positioning notch 1221 and the fourth positioning notch 1421 respectively.

The wire 24 is an enameled wire and includes a terminal 241 and a terminal 242 . The wire 24 is wound around the exterior of the main body 221 .

Please refer to FIG. 3 at the same time. When assembling the voice coil motor 100, the first plate body 12 and the second plate body 14 are combined to the first end portion 222, so that the first abutting piece 1215, the second plate body 1215 The second abutting piece 1217, the third abutting piece 1415 and the fourth abutting piece 1417 abut against the first surface 2222, so that the four positioning columns 2224 correspond to the first positioning notch 1218, the In the second positioning notch 1418, the third positioning notch 1221 and the fourth positioning notch 1421, then the end 241 and the end 242 of the wire are respectively welded to the first electrode 1219 and the second electrode 1419, so that the The end 241 and the end 242 of the wire are respectively electrically connected to the first electrode 1219 and the second electrode. The first electrode 1219 and the second electrode 1419 can be conveniently positioned with the end 241 and the end 242 of the wire 24 during welding, and the first channel 1220 and the second channel 1420 can respectively accommodate The excess solder flowing out from the first electrode 1219 and the second electrode 1419 .

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Alterations and variations are within the scope of the claimed invention.

Claims (7)

1. A voice coil motor, comprising a coil set and a shrapnel, the coil set includes a body and a wire wound on the body, the body includes an end, it is characterized in that: the shrapnel The elastic piece is arranged on the end and includes a first plate body and a second plate body separated from each other; the first plate body is provided with a first electrode, and the second plate body is provided with a second electrode body ; The two ends of the wire are respectively welded to the first electrode and the second electrode, the first plate body includes a flat first outer frame, and the first outer frame includes a first A plate segment, a second plate segment and a third plate segment; the first plate segment is a long rectangle, the second plate segment is vertically connected to one end of the first plate segment and connected to the first plate segment forms an arc-shaped first corner, and the third plate segment is vertically connected to the other end of the first plate segment and forms an arc-shaped second corner with the first plate segment; the first plate segment A first elastic arm extends from the segment near the first corner, the first elastic arm extends in a direction parallel to the first plate segment, and the end of the first elastic arm is bent to form a meniscus A first abutting piece in the shape of a first abutting piece is located at the second corner; the third plate segment extends a second elastic arm from the second corner, and the second elastic arm The extension direction is parallel to the third plate segment and extends out of the third plate segment, the end of the second elastic arm is bent to form a meniscus-shaped second abutment piece, and the first electrode is arranged on the The middle position of the second abutment piece. 2. The voice coil motor according to claim 1, characterized in that: the second plate body comprises a flat second outer frame; the second outer frame comprises a fourth plate segment, a fifth plate segment and a sixth plate segment, the fifth plate segment is vertically connected to one end of the fourth plate segment and forms an arc-shaped third corner with the fourth plate segment; the sixth plate segment is vertically connected At the other end of the fourth plate segment and forming an arc-shaped fourth corner with the fourth plate segment; the fourth plate segment is provided with a third elastic arm extending from a position close to the third corner, The third elastic arm extends along a direction parallel to the fourth plate segment, and the end of the third elastic arm is bent to form a crescent-shaped third abutment piece, and the third abutment piece is located at the the fourth corner; the sixth plate section extends a fourth elastic arm from the fourth corner, and the extension direction of the fourth elastic arm is parallel to the sixth plate section and extends out of the first Six plate sections, the end of the fourth elastic arm is bent to form a meniscus-shaped fourth abutting piece, and the second electrode is arranged in the middle of the third abutting piece. 3. The voice coil motor according to claim 2, wherein a rectangular first positioning gap is formed between the first abutting piece and the second abutting piece. 4. The voice coil motor as claimed in claim 3, wherein a first channel is formed on the periphery of the first electrode and passes through the second abutting piece. 5 . The voice coil motor according to claim 4 , wherein a substantially rectangular second positioning gap is formed between the third abutting piece and the fourth abutting piece. 6 . The voice coil motor according to claim 5 , wherein a second channel is formed on the periphery of the second electrode through the third abutting piece. 7 . 7. The voice coil motor according to claim 6, wherein the second abutting piece is correspondingly located at the third corner so that the first abutting piece is opposite to the third abutting piece, A third positioning notch is formed between the second abutment piece and the third abutment piece, and the fourth abutment piece is correspondingly located at the first corner so that the second abutment piece and the fourth abutment piece The leaning pieces face each other, and a fourth positioning notch is formed between the second leaning pieces and the fourth leaning pieces.