CN201021949Y

CN201021949Y - An object lens rack

Info

Publication number: CN201021949Y
Application number: CNU2007200493907U
Authority: CN
Inventors: 熊成华; 戴清发
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-13
Filing date: 2007-03-13
Publication date: 2008-02-13
Anticipated expiration: 2017-03-13

Abstract

The utility model discloses an objective carrier, which has the technical points that an upper convex edge and a lower convex edge respectively extend out from each of the four sides of the upper portion and the lower portion of a rectangular framework, the upper convex edge and the lower convex edge forms a concave track to coil a convergence coil, the upper convex edges and the lower convex edges of one side and the adjacent side of the rectangular framework are respectively provided with two upper hooks and two lower hooks which are separately distributed and used to coil a repeating coil, an upper terminal column and a lower terminal column respectively extend out from each of the other two sides of the rectangular framework, an upper slot to clamp and fix a PCB board is arranged on the upper convex edges and beside the upper terminal columns, and a lower slot to clamp and fix the PCB board is arranged on the lower convex edges and right below the upper slot. The utility model provides the objective carrier with a simple structure, which aims to overcome the defect that prior objective carriers cause the procedures of coiling the coils and connecting the PCB board with the coils to be complicated. The utility model makes the procedures of coiling the coils and connecting the PCB board with the coils simple.

Description

A kind of objective carrier

[technical field]

The utility model relates to a kind of objective carrier, especially relates to a kind of objective carrier that is used for the optical pickup unit of CD drive.

[background technology]

CD drive is to be used for the information of reading and recording on CD, perhaps write information to the device of CD.CD drive has laser radiation to CD and detect its catoptrical optical pickup unit.Optical pickup unit has comprised and has been arranged to the object lens relative with CD, and object lens are installed on the objective carrier; The focusing coil of on objective carrier, reeling, the tracking coil of then reeling in the side of objective carrier, focusing coil is to carrying out accurate position control along optical axis focus direction and tracking coil to the tracking direction along the CD radial direction, so as laser correctly optically focused be on the track to the record surface of the CD that is driven in rotation.

The focusing coil of existing objective carrier and tracking coil, must reserve sufficiently long terminal so that weld with printed circuit board (PCB) (pcb board), thereby after coil winding was good, the jut of installation object lens that also will be on objective carrier twined several circles so that reserve sufficiently long terminal; Also have, reliable for what guarantee to weld, weld in the tin hole that the terminal of coil must pass on the pcb board again, and operation is many, has wasted the time, manually-operated, wastes time and energy.

[utility model content]

The purpose of this utility model is in order to overcome that existing objective carrier causes the deficiency of the complex procedures that coil winding, pcb board be connected with coil and the objective carrier a kind of simple in structure that provides.The operation that the utility model makes coil winding, pcb board be connected with coil is simple, cost reduces greatly.

In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposal:

A kind of objective carrier, comprise rectangular framework, central part in rectangular framework is provided with the installing component that object lens are installed, be provided with two rectangular openings in the both sides of installing component, it is characterized in that on rectangular framework, below cubic edge respectively stretch out chimb on, chimb down, the recessed rail of formation one coiling focusing coil between last chimb and the following chimb;

Rectangular framework wherein a side and the another side relative with this side last chimb, respectively be provided with two coiling tracking coils on the chimb down spaced apartly rise to the bait, hook down;

Rectangular framework in addition two sides on chimb, respectively be extended with a upper terminal post, lower terminal post on the chimb down; On the last chimb, the next door of upper terminal post be provided with fix pcb board on draw-in groove, on chimb down, on draw-in groove under be provided with the lower bayonet slot that fixes pcb board;

Aforesaid a kind of objective carrier is characterized in that the upside of described upper terminal post, upper terminal post are provided with upper groove near last draw-in groove side; Downside, lower terminal post at the lower terminal post are provided with low groove near the lower bayonet slot side;

Aforesaid a kind of objective carrier is characterized in that describedly rising to the bait, hook is a T shape hook down.

The utility model compared with prior art has following advantage: the terminal of 1, focusing, tracking coil twines several circles and gets final product in the upper and lower groove of upper and lower terminal post, saved operation; The terminal of 2, focusing, tracking coil forms certain width after twining multi-turn on the upper and lower terminal post, at this moment can be directly and pcb board weld, and do not need to pass tin hole this very complexity, operation that difficulty is big together on the pcb board, saved the time; 3, this objective carrier is simple in structure, easy to make, with low cost, is beneficial to very much and applies; 4, the rectangular framework one of this objective carrier design does not need the part assembling, has saved operation, and is simultaneously durable, helps the thin typeization of skeleton.

[description of drawings]

Fig. 1 is the stereographic map in the utility model front;

Fig. 2 is the stereographic map of the utility model back;

Fig. 3 is the stereographic map in the utility model left side;

Fig. 4 is the stereographic map behind the utility model assembling focusing coil, tracking coil, the pcb board;

Fig. 5 is the stereographic map of pcb board.

[embodiment]

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

(Fig. 1-3) a kind of objective carrier, comprise integrated tabular rectangular framework 10, central part in rectangular framework is provided with the installing component 20 that is used to install object lens, is provided with two in the both sides of installing component and is used to insert the rectangular opening 30 that iron is gripped, and rectangular opening runs through the upper and lower faces 101,102 of skeleton; Cubic edge on rectangular framework respectively stretches out chimb 401 on, and the cubic edge below rectangular framework respectively stretches out chimb 402, the described recessed rail 403 that forms a coiling focusing coil 501 between chimb and the following chimb of going up;

Installing component on the skeleton comprises the boss 201 on the skeleton upper surface and the cavity 202 of lower surface, is connected by through hole 203 between boss and the cavity.Boss becomes elliptical cylinder-shape, and it is cylindrical that cavity becomes.

Rectangular framework wherein a side 105 on chimb, down respectively be provided with on the chimb two spaced apartly rise to the bait 601, hook 602 down; The last chimb of the another side 106 relative with the above-mentioned side of rectangular framework, down respectively be provided with on the chimb two spaced apartly rise to the bait 601, hook 602 down; Directly over the same side, one group of arranged just beneath rise to the bait, hook cooperates the framework that constitutes coiling tracking coil 502 down; Rise to the bait, descend hook can be T shape hook or other shape.

Permanent magnet is arranged in iron is gripped, and permanent magnet is used for and focusing coil 501 and the 502 coordinated effects of tracking coil, produces certain magnetic force.

At chimb on two sides 107,108 of rectangular framework remainder, respectively be extended with a upper terminal post 70, lower terminal post 80 on the chimb down; On the last chimb 401, the next door of upper terminal post be provided with fix pcb board 90 on draw-in groove 701, on chimb 402 down, on draw-in groove under be provided with the lower bayonet slot 801 that fixes pcb board; Above-mentioned two sides respectively have a pcb board be stuck in above-mentioned in the draw-in groove, lower bayonet slot;

The upside of above-mentioned upper terminal post 70, upper terminal post near on draw-in groove 701 sides be provided with upper groove 702, be provided with low groove 802 at downside, the lower terminal post of above-mentioned lower terminal post 80 near the lower bayonet slot side, above-mentioned upper and lower groove be used to the to reel terminal of coil.

(Fig. 4-5) pcb board 90 is provided with two tin holes, and is independent between middle two tin holes 901,902, do not have an annexation, and weld with enameled wire on the upper and lower terminal post in middle two tin holes.Pcb board is in order to apply voltage to focusing coil 501 with tracking coil 502 and to be connected with these two coils.

Below, with reference to Fig. 4, illustrate focusing, tracking coil are wound on the objective carrier, and pcb board is assembled in the operation on the objective carrier:

At first, winder work is wound on focusing coil 501 in the recessed rail 403 that forms between the last chimb 401 of skeleton and the following chimb 402; Two terminals of focusing coil multi-turn of reeling in the upper and lower groove 702,802 of one group of upper and

lower terminal post

70,80 therein;

Then, winder is wound on tracking coil 502 directly over the same side 106 of skeleton, arranged just beneath rise to the bait 601, down on the hook 602, above-mentioned side 106 another groups that are wound on skeleton then rise to the bait, down on the hook; One group of opposite flank 107 that is wound on skeleton again rises to the bait, down on the hook, another group that is wound on the opposite flank 107 of skeleton then rises to the bait, down on the hook; Two terminals of tracking coil multi-turn of in the upper and lower groove 702,802 of remaining one group of upper and

lower terminal post

70,80, reeling;

At last, a pcb board 90 fixes in one group of upper and lower draw-in groove 701,801, and another piece pcb board 90 fixes to be organized in the upper and lower draw-in groove 701,801 at another; Enameled wire welding in the middle of the pcb board on two tin holes and the upper and lower terminal post, focusing coil, tracking coil have been connected with pcb board respectively like this, realize being electrically connected of they.

Claims

1. objective carrier, comprise rectangular framework (10), central part in rectangular framework is provided with the installing component (20) that object lens are installed, be provided with two rectangular openings (30) in the both sides of installing component, it is characterized in that on rectangular framework (101), below the cubic edge of (102) respectively stretch out chimb on (401), chimb (402) down, the recessed rail (403) of formation one coiling focusing coil (501) between last chimb and the following chimb;

Rectangular framework (10) wherein a side (106) and the another side (107) relative with this side last chimb, respectively be provided with spaced apart the rising to the bait (601) of two coiling tracking coils, hook (602) down on the chimb down;

In addition respectively be extended with a upper terminal post (70), lower terminal post (80) on the last chimb, time chimb of two sides (107), (108) in rectangular framework; On last chimb, the next door of upper terminal post is provided with the last draw-in groove (701) that fixes pcb board (90), on chimb down, on draw-in groove under be provided with the lower bayonet slot (801) of fixing pcb board.

2. a kind of objective carrier according to claim 1 is characterized in that the upside of described upper terminal post (70), upper terminal post are provided with upper groove (702) near last draw-in groove (701) side; Downside, lower terminal post in lower terminal post (80) are provided with low groove (802) near lower bayonet slot (801) side.

3. a kind of objective carrier according to claim 1 and 2 is characterized in that described rising to the bait (601), following hook (602) are T shape hook.