CN101089971A

CN101089971A - Motor positioning structuring for CDROM

Info

Publication number: CN101089971A
Application number: CN 200610087142
Authority: CN
Inventors: 何俊龙
Original assignee: Lite On IT Corp
Current assignee: Lite On IT Corp
Priority date: 2006-06-13
Filing date: 2006-06-13
Publication date: 2007-12-19

Abstract

This invention relates to a motor location structure of CD drive including a loading base plate, at least one fixed part and a stepping motor, in which, the loading base plate is set with an optical read head and the fixed part is arranged on the plate vertically having corresponding holes and is molded with the plate, besides, the stepping motor is connected with a lead screw and transfers power to it to further drive the optical read head to hunt and read information and the lead screw passes through the holes to set the motor on the fixed part.

Description

The motor location structure of CD-ROM drive

Technical field

The invention relates to a kind of motor location structure, be meant the motor location structure that is used in the CD-ROM drive especially.

Background technology

CD-ROM drive is to be present quite general common and electronic product that demand is big, because numerous dealers competitively produce, under intense market competition, product price certainly will be constantly toward descending, and survival strategy, how forcing down manufacturing cost again should have profit to keep, and is that industry is constantly made great efforts the direction thought always; CD-ROM drive is that most unit mechanisms combine, and is therefore improved breakthrough at the assembly kenel of each unit, can both benefit to some extent reducing cost, even omit a screw or a bottom deck assembly, can both quicken the assembling of CD-ROM drive or reduce cost.

Seeing also shown in Figure 1ly, is the exploded view for the assembling of known CD driver assembly.The whole mechanism design of general CD-ROM drive is to be unit such as a pallet 12, a movement (traverse) 13 and a forward and back blade unit 14, and three's combination is the start principle that has constituted CD-ROM drive.CD-ROM drive be in shell 19, have can forward and backward activity pallet 12, pallet 12 is in order to the carrying disc sheet, by the driving of forward and back blade unit 14, to send into, to send the front end of discs in CD-ROM drive.Discs is in CD-ROM drive the time, and CD-ROM drive can be driven an optical read head and read data stored on the discs by a step motor of internal machine core 13.

Then seeing also shown in Figure 2ly, is the internal mechanism synoptic diagram for the movement 13 of Fig. 1.Mainly comprise a bearing assembly 131 on the movement 13, it is provided with Spindle Motor 139, step motor 132, and mechanism such as optical read head 136.Spindle Motor 139 is to be supported and be attached on the bearing assembly 131 of movement 13 by motor base (adaptor), its Spindle Motor 139 is to make high speed rotating in order to the carrying data disc, and step motor (stepping motor) the 132nd is sought rail to read data stored on the discs in order to drive optical read head 136.

As shown in FIG., an end of step motor 132 has a guide screw swing arm 133, seeks rail action in guide screw swing arm 133 in order to drive optical read head 136 by step motor 132 transferring power.In addition, step motor 132 is arranged on the positioning seat 134, positioning seat 134 is to be a ㄇ type structure, comprise a body and both sides

flat board

1341,1342 thereof, and both sides

flat board

1341,1342 has a hole respectively, this guide screw swing arm 133 is the holes that pass on the both sides

flat board

1341,1342, so that step motor 132 is fixed on the positioning seat 134.Specifically, the outside of positioning seat 134 1 side flat boards 1341 is to prop up and fixing step motor 132, and the hole of opposite side flat board 1342 is to move to limit it in order to fixing guide screw swing arm 133.

In addition, the body of positioning seat 134 is provided with two combined holes, and also has two combined holes on the bearing assembly 131 of movement 13, and it is corresponding with two combined holes on the positioning seat 134.Positioning seat 134 is to pass those combined holes by screw 135 its holder 134 is fixed on the bearing assembly 131 of movement 13.

Because the step motor of CD driver movement is to be arranged on the positioning seat, see through screw again and positioning seat is fixed on the bearing assembly of movement, therefore, need spend more and time-consumingly assemble with manpower, relatively also can raise the cost.Therefore, in reducing cost, under the prerequisite of material cost, number of parts and convenient assembling, how step motor being arranged on the movement, be for being familiar with force direction due to this operator.

Summary of the invention

Purpose of the present invention can effectively reduce number of parts in that a kind of motor location structure is provided, and reduces assembly cost.

The invention relates to a kind of motor location structure of CD-ROM drive, it is characterized in that, comprising:

One bearing substrate, it is provided with an optical read head;

At least one fixed part is uprightly to be arranged on this bearing substrate, and one-body molded with this bearing substrate, wherein is the hole that has a correspondence respectively on those fixed parts; And

One step motor (stepping motor) is to connect a guide screw swing arm (leadscrew), this step motor be transfer motion power to this guide screw swing arm, and then drive that this optical read head is sought rail and data reads;

Wherein, this guide screw swing arm is to pass those holes, reaches on this fixed part in order to this stepping horse is provided with.

Wherein this fixed part also comprises one first fixed part and one second fixed part, and this first fixed part is the side that is arranged at this step motor, and this second fixed part is to be arranged at this guide screw swing arm end.

Wherein this first fixed part is to be a platy structure.

Wherein this second fixed part is to be a platy structure.

Wherein this bearing substrate is to be a sheet metal structure.

Wherein this first fixed part and this second fixed part are formed by this bearing substrate of bending.

Wherein this bearing substrate has a vacancy section, and this step motor is to be contained in this vacancy section.

Wherein the shape size of this vacancy section is the shape that cooperates this step motor.

Description of drawings

For convenience can further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended accompanying drawing only provide with reference to and usefulness is described, be not to be used for the present invention is limited.

Fig. 1 is the exploded view for known CD driver assembly assembling.

Fig. 2 is the internal mechanism synoptic diagram for the movement of known CD-ROM drive.

Fig. 3 a be for motor location structure of the present invention in the schematic top plan view of CD driver.

Fig. 3 b is the elevational schematic view of motor location structure in CD driver.

Fig. 3 c is motor location structure another elevational schematic view in CD driver.

Embodiment

Please consulting simultaneously shown in Fig. 2 a-Fig. 3 c, is the synoptic diagram that is applied to motor location structure in the CD-ROM drive for of the present invention.Wherein Fig. 3 a is the schematic top plan view that is arranged at CD driver for the motor location structure; Fig. 3 b is the elevational schematic view that is arranged at CD driver for the motor location structure; Fig. 3 c is another elevational schematic view that is arranged at CD driver for the motor location structure.

In the present embodiment, the motor location structure is to comprise a bearing substrate 23, at least one fixed part 239,231 and a step motor 21 (steppingmotor).Wherein a movement 2 comprises bearing substrate 23, and movement 2 inner other assemblies are arranged on the bearing substrate 23.Step motor 21 is to be placed on the vacancy section 229 of bearing substrate 23, and step motor 21 1 ends are to have a guide screw swing arm 212 (lead screw).Step motor 21 be transfer motion power to guide screw swing arm 212, and then an optical read head 236 that drives CD driver seeks rail and data reads.Fixed part the 239, the 231st uprightly is arranged in the surface of bearing substrate 23, and is the hole that has a correspondence respectively on the fixed part 239,231.In the present embodiment, fixed part the 239, the 231st is respectively one first fixed part 231 and one second fixed part 239, first fixed part 239 is the sides that are arranged at vacancy section 229, be step motor 21 and spiral guide rod 212 junctions, and guide screw swing arm 212 is the holes that directly pass first fixed part 231; And second fixed part 239 is to be arranged at guide screw swing arm 212 ends 2129.Its guide screw swing arm 212 passes those holes, is to move with guide screw swing arm 212 in order to restriction step motor 21, and step motor 21 and guide screw swing arm 212 are fixed on the bearing substrate 23.

According to the embodiment of the invention, first fixed part 231 is to be a platy structure, and first fixed part 231 is one-body molded to make with bearing substrate 23; And second fixed part 239 also is a platy structure and is one-body molded to make with bearing substrate 23, wherein second fixed part 239 and being arranged on another vacancy section 221 sides of bearing substrate 23.

Then, bearing substrate 23 is to be a sheet metal structure, and first fixed part 231 and second fixed part 239 are by bearing substrate 23 direct bendings, make first fixed part 231 and second fixed part, 239 vertical stand-ups on bearing substrate 23.

It should be noted that, the motor location structure that proposes according to the present invention, be that bearing substrate 23 in movement 2 is with bending or alternate manner, directly become the required positioning framework of step motor 21 at bearing substrate 23 mo(u)ld top halves, thereby in the CD-ROM drive production run, step motor 21 can directly be assembled on the bearing substrate 23, and need not earlier step motor 21 be assembled in other fixture, fixture is assembled on the bearing substrate again.

Moreover, the motor location structure that proposes according to the present invention, because the straight forming of the bearing substrate of movement, and and step motor between direct assembling mode can save screw and extra motor fixer part, so can reduce required cost for integral product.In addition, for a large amount of productions, can promote the product assembling speed, save the required resource that expends in the handling of goods and materials simultaneously.So integral body is considered down, the present invention can reduce the production manufacturing cost, so can promote product margin thus.

Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this operator; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is when looking accompanying being as the criterion that claim defines.

Claims

1. the motor location structure of a CD-ROM drive is characterized in that, comprising:

One bearing substrate, it is provided with an optical read head;

One step motor is to connect a guide screw swing arm, this step motor be transfer motion power to this guide screw swing arm, and then drive that this optical read head is sought rail and data reads;

2. as claim 1 a described motor location structure, it is characterized in that, wherein this fixed part also comprises one first fixed part and one second fixed part, and this first fixed part is the side that is arranged at this step motor, and this second fixed part is to be arranged at this guide screw swing arm end.

3. as claim 2 a described motor location structure, it is characterized in that wherein this first fixed part is to be a platy structure.

4. as claim 2 a described motor location structure, it is characterized in that wherein this second fixed part is to be a platy structure.

5. as claim 1 a described motor location structure, it is characterized in that wherein this bearing substrate is to be a sheet metal structure.

6. as claim 2 a described motor location structure, it is characterized in that wherein this first fixed part and this second fixed part are formed by this bearing substrate of bending.

7. as claim 1 a described motor location structure, it is characterized in that wherein this bearing substrate has a vacancy section, this step motor is to be contained in this vacancy section.

8. as claim 1 a described motor location structure, it is characterized in that wherein the shape size of this vacancy section is the shape that cooperates this step motor.