TW495739B - Disk rotating device - Google Patents

Abstract

A disk rotating device including a rotating shaft, a stator arranged around a lower portion of said rotating shaft, said stator including a core and a coil wound around said core, and a rotor fitted around an upper end of said rotating shaft to generate an electromagnetic force in cooperation with said stator, said rotor having an upper surface on which a disk is directly loaded. The disk rotating device also includes a guard for centering the disk on a rotating axis of the rotor. The guard is integrally formed with a rotor case included in the rotor. By this configuration, it is possible to eliminate the use of a turntable, which is separated from the rotor, as in conventional disk rotating devices. This enables a reduction in the number of constituting elements, as compared to conventional disk rotating devices using the turntable. Accordingly, a reduction in the costs and an improvement in the efficiency of the assembling process are achieved.

Description

495739 V. Description of the invention (1) ___ The present invention relates to a disc rotating device, which can drive a disc to rotate at a high speed inside the dagger. 2Especially a disc installed on a disc compared to a Shanghai magnetic T-pinler disc Tablet rotation device. It is more popular than car-like magnetic T or LPS because of its high-density data storage and reproduction capabilities. Currently used optical disc drive; To =: storage device, (laser) optical disc drive and CD (compact di & knife are lasers, their size is small and suitable for carrying, and there are still two types of optical disc drive, the latter is near, the former has also skyrocketed. Trend: in the market ... shake, the best of the most compact disc player, the key is because the high school 鳇 # / 7th stationed again, and &, & whether it can drive the tablet to rotate quickly without happening The rolling phenomenon, and the pusher that pushes one = the turn of the film is a disc drive motor. 传统 The traditional disc drive motor that runs the ticket machine and the high-speed motion disc runs at high speed is used to explain-push t 1 in the figure, The reference numeral 10A represents that the disc drives a motor body 20, a turntable 45 fixedly mounted on the motor, and a turntable 45 including 20, and a ring set on the motor body, and a disc 80, such as a digital The V tablet diak (dak) is a tDVD ~ vlde〇10A placed flat on the elastic portion 402 to drive the turntable 45 to rotate and then run. Said μ-disc drive motor * seat Γ ": body sub-substrate 22 for supporting-cylindrical shaft shaft ^ β horse reversing shaft 28 is determined by a stop and 1: 1: 弋 bearing seat 24 and both Concentric structure? :: 'There is a multi-level knot formed by a plurality of core sheets, and the peripheral ring is provided with an equidistant arrangement and protrudes radially from the stator core.

$ 5 pages 495739 _ — --- —- 5. Description of the invention (2) A plurality of electrodes of the margin 3 0 1. A coil 3 02 is wound on the stator core 30 and between the electrodes 3 01. The other ring magnet 3 2 surrounds the periphery of the stator core 30 and leaves a small gap in the radial direction so as not to contact the electrodes 30 i. It is positioned on a cup-shaped rotor fixed on the turntable 45. 34 内 边 面。 34 inner edge surface. A center cover 55 is installed around the upper end portion of the motor shaft 28 penetrating the turntable 45, and the bottom end of the center cover 55 has a hollow cylindrical structure to provide a mounting hole 5 50 to accommodate the motor shaft 2 8 upper end. In addition, the upper end of the motor shaft 28 is closely attached to the center cover 55, and there is no obvious gap therebetween. Violation of the center 该 5 5 and the turntable 4 5 has a center ring 5 1 ring on the motor shaft 28 'It can be bent or folded to move axially along the motor shaft 28, or follow the motor shaft 28 spinners. A spring 52 is provided between the center piece 51 and the turntable 45 to drive the center ring 51 to push against the center cover 55. A clamping portion 70 is arranged on the motor shaft 28 and above the center cover 55. The clamping portion 70 has a central protrusion 7 0 1 ′ having a tapered rod shape, and a tip thereof is directed toward an upper end portion of the motor rotating shaft 28. Furthermore, a disc pressing portion 70 2 is provided on the outer edge of the holding portion to press a disc 80 placed on the turntable 45. A magnet 71 is disposed on the surface of the holding portion 70 and is located relative to the center cover 55 to attract the center cover 55 made of metal so that it is the holding portion on the disc 80. When it is clamped by 70, it is adsorbed on the clamp portion 70. In addition, the 5 5 center 盍 5 5 series can provide the clamping section 70 to clamp the disc § 〇 时 之

V. Description of the invention (3): To this end, the center cover 5 5 is provided with a center hole 56 to accommodate Xi + holding part 70 centrally, such that ^ A is a combination of the loss and the big 7 〇1 At the same time, at the same time, the central hole 56 is provided with a respectful position; 1 Liu Shao X-shaped tapered hole 562 that gradually decreases downwards. Also, the outer center hole 5 6 is also ancient ^ h ^ Dan has a mounting hole that extends 563 downward from the tapered tapered hole 562 and the middle ..._ ^ ~ it < Xia Kong, Λ 甲 心 盍 55 mounting hole 550 are connected to each other. In addition, 'the upper end of the motor shaft 28 is provided with a recess 29, that is, the motor shaft 28 and the central protrusion 701 touch each other; and the recess 29: there is a straight upper end and a tapered cone Lower end. The first screw misalignment mechanism 40 is composed of the center ring 51 and the center cover 55 $ misalignment ^ 70, where the clamping portion 70 can be moved downward to the rotation 14 5 to suppress the displacement. The disc placed on the turntable 4 5 and fitted to the outer edge of the center ring 5 1 is 80 °. At this time, the tip of the central protrusion 701 is connected to the tapered hole 562 and the straight by its outer surface. The principle that the steps 561 of the holes 5 63 are in contact with each other is based on the principle of 'embedding in the center hole 56 of the center cover 55, so that the clamping portion 70 is positioned in the center. Since the recess 29 is formed at the upper end of the motor shaft 28, during the process of clamping the disc 80, the tip of the central protrusion 701 extends downward and penetrates the center cover 5 5 The tapered hole 5 6 2 is tapered, but it cannot contact the motor shaft 2 8. In this way, the center hole 55 of the center cover 5 5 can provide the clamping portion 70 — accurate center positioning, and because the center cover 5 5 does not involve the problem of orientation, it can be made into a thin structure without the need for The design of the mounting portion of the center cover 55 and the motor shaft 28 may be modified, so that the motor shaft 28 may have a mounting portion with a greater height to be disposed on the center cover 55. w From the above-mentioned conventional disc rotating device, it can be known that its overall structure can be borrowed from

Page 7 V. Description of the invention (4) Thinning of the center cover The disc is loaded. First, the transmission is reduced in size, but the spear is an independent entity. Professional accuracy. Its assembly efficiency. Second, if more machines are needed, it is more complicated. Not only third, the discs increase the cost of the mechanical components and reduce the assembly. The main method of the present invention is to provide less assembly efficiency and lower assembly costs. According to the present invention, there is a rotating shaft; a ring is provided on the ring; a ring is provided on the core; a ring is provided on the rotor box; the iron on the peripheral wall of the rotor box; After all, the rotation of the disc is that the turntable rate must be a little larger. The components mentioned above increase the cost and add efficiency to the turntable. The main purpose is to reduce the cost of the components @ ', and the following restrictions are imposed on the motors. You must use motors to reduce the cost of the motor. The central procedure is to solve the problem of streamlining the structure and to achieve a stable problem. The thickness of the center cover can be reduced because the combination of the rotary table and the motor's two shafts requires higher precision. For more accurate assembly technology, for example, the procedures and steps will inevitably lead to low productivity. If the positioning is complicated by the separating element, it will undoubtedly increase the production of the above-mentioned problems of the conventional technology and the disk rotation device is beneficial to mention an embodiment. The disk rotation device provided in this case includes a centering portion at the lower end of the rotating shaft. Coil; rotation of the upper end of the shaft; the rotor box includes an inner surface to match the central part of the top wall of the sub-box; the stator includes a core part; the rotor surrounds the stator and is equal to a wall, a peripheral wall, and attached to the The sub-coil generates an electromagnetic force that protrudes upward by a desired height.

Page 8 495739 V. Description of the invention (5) The shield is based on the inner diameter of the rotor, and the inner surface of the lower peripheral wall of the shield is based on the original. The guide includes: The rotation axis of the center point of the top wall of the rotor box coincides, and the upper end of the shroud has a small and fine-shaped surface. In the embodiment of the invention, the disc rotating device further includes a source end extending radially outward along the top wall of the rotor box to the flange of the rotor box to plan the proper height of the magnet. In another embodiment of the invention, the coil of the stator at the lower end of the disc rotating device provided by the present case; the rotor at the upper end is provided with a rotor box on the shaft and a ring around the core; the rotor box includes a rotor box; The inner and outer surface shields of the peripheral wall of the rotor box of the top wall and the peripheral wall are attached to the inner surface of the peripheral wall of the box extending radially from the top of the rotor box except for this embodiment to match the fixed iron, And a disc is placed on the joint from the central part of the top wall of the rotor box, and the upper end of the shield has a diameter d, a rotating shaft and a ring arranged around the rotating shaft to match the inner diameter of the tapered shape. As soon as the surface faces the peripheral direction part, to avoid the disc, the height of the rotor from the lower end of the shroud to the lower surface of the wall according to the present invention is included. The stator includes a core portion, and the rotor surrounds the stator and is attached to the magnetic force of the sub-coil to generate the center point when the top wall of the rotor box protrudes upward by a desired height. The seat wall on the top surface of the rotor box slips off. The disc rotating device still includes a flange, which is arranged along the top surface of the rotor box to plan the magnet.

Page 9 495739 V. Description of the invention (6) For the sake of this book, there are more specific explanations: [Illustration of the drawings] Fig. 1 is a tradition. Fig. 2 is the third and fourth drawings of the present invention. 6 figures respectively [illustration of the numbering of drawings] 10A ---- ---- disc 22 -------- stator 261 ------- radiation 28 -------- motor 30-- ------ Stator 302 ------- Coil 34 -------- Rotor 402 ------- Elasticity 51 -------- Center 55 ---- ---- Center 562 ------- Tapered 70 -------- Clamping 702 ------- Disc 80 -------- Disc 10 0- ------ Shape, structure, features, and utility of the invention for the purpose of the invention of the rotating shaft, the sectional view of the detailed disc rotating device according to the embodiment and the related drawings is given; the perspective view of the disc rotating device of an embodiment ; Sectional view of the disc rotating device of the embodiment, a perspective view and a sectional view of another embodiment of the present invention are actually a driving motor of the present invention; Body 2 4 -------- Bearing 2 6 2 ------- Stop bearing 29 -------- Recess 301 ------- Electrode 32 --- ----- Ring magnet 40 -------- Disc > i holding mechanism 45 ------ --Turntable 52 -------- Spring 56 -------- Center 孑 L 563 ------- Straight hole 701 ------- Central protrusion 71 ---- ---- Magnet 2 0 0 ------- Stator Φ

Page 10 495739 V. Description of the invention (7) 210 ------- core 22 0 ---- ---- coil 3 0 0 ------- rotor 310 -----rotor box 32 0-Magnet 40 0 ---- ——Shield 410- Tapered surface 420--Flange 5 0 0 ------- Ring seat 600 ---- ——Clip 7 0 0- ------ Bearing D ------ ——Disc

2 and 3 are explanatory diagrams of a disc rotating device according to an embodiment of the present invention. As shown in the figure, the disc rotating device mainly includes a rotating shaft 100, a stator 2 00, and a rotor 300. The stator 200 is connected to the lower end of the rotating shaft 100 and includes a core 2 10 and a coil 2 2 0 wound around the core 2 10. The rotor 300 ring is disposed on the upper end of the rotating shaft 100, and has a top surface of a bearing disc D. The rotor 300 includes a rotor box 310 and a magnet 3 2 0 ′, and cooperates with the stator 2000 to generate an electromagnetic force to drive a disc placed on the rotor 300 to rotate. The rotor box 3 1 0 has an upper surface for carrying the disc D, and the magnet 3 2 0 is attached to the inner peripheral surface of the rotor box 3 1 0 to cooperate with the coil 220 of the stator 200 to generate the electromagnetic force. Secondly, the rotor 300 also has a soil-shaped shield 400 provided in the center hole of the rotor box 3 10, which protrudes upward from the inner wall of the rotor box 3 1 0, and has a value smaller than that The diameter of the inner diameter of the disc D. In addition, the shroud 400 has a tapered surface 4100 with a preset slope at the upper end to facilitate the rotor 300 to support the disk D and provide the center of the disc. # 攻 ^ From Λ ^ Sea Zun cover 4 0 0 The flange 4 2 0 extending radially outwards from the lower end is a unit. The flange 42 0 is along the inside of the rotor box 310

Page 11 495739 V. Description of the invention (8) The upper surface extends to the peripheral wall surface of the rotor box 310 to which the magnet 320 is attached, and is in close contact with the inner upper surface of the rotor box 3 1 0. Its function is to strengthen The restraining force on the shroud 40 0 is tightly combined with the rotor box 3 to prevent flying upward. In particular, as shown in FIG. 4, the flange 420 extends radially outward to the peripheral wall of the rotor case 31 to which the magnet 3 20 is attached, and stops above the magnet 32, so that the lower surface thereof and the magnet 320 The upper surfaces are in contact with each other. In addition, the size of the magnet 320 is restricted by the position and size of the stator 200. When the rotor rotates at a high speed of 300, the magnet 32 will withstand an upward thrust. When the flange 4 2 0 extends radially to an appropriate position as described above, attaching the magnet 32 to the inner peripheral surface of the rotor box does not require any precise assembly procedure, even if the size of the magnet 320 changes The position and size of the stator 200 must be accommodated without causing problems. The reason is that the magnet U 0 is in contact with the flange 420 to form a buckle. Therefore, when the rotor is turned 4 ′, the magnet 320 can be prevented from flying off. Zhong Zhong shield 400 has another option, which is to form a single body with the rotor 300, especially the rotor box 310. In this case, it is produced by the molding method, and only needs to be matched with -Λ auxiliary assistant t man cover 400 can be used to shoot out the rotor: =: upper sub-table box = another embodiment of the present invention, a ring-shaped cymbal shell. For this reason, the rotor shown in Figure 6 is detailed above. = Post :: As shown in Figure 5 and made of elastic or flexible materials, the use of Beihao Beihao can also prevent it from slipping when rotating. / Jy

Page 13 495739 V. Description of the invention (10) Rotating device ’will reduce costs and improve assembly efficiency. In addition, according to the present invention, the disc of the present invention is used for further refinement. Familiarity with this technology can be applied to other different examples instead of limiting its scope of patent application.

Some construction elements can also reduce production. The disc rotating device can be moved. § Erxia is also possible to give a compact disc drive, etc., will have the opportunity to lead the people in the field. The basic theory of this rabbit is ~, so the embodiment mentioned in the present invention is only the target, but the changes that it has to extend are still restrained. Grow into Supply

Claims (1)

495739 f fΟ 5 9 6. Patent application scope 1. A disc rotating device includes: one revolution%; one ring is arranged around the core and one ring is arranged in a rotor box; the inner surface of the peripheral wall of the sub-box and one The arrangement of the rotor is beneficial to the center of the disc and the stator at the core and one end of the shield, and the rotor at the end is a coil that surrounds the stator and has a lower part of the shaft. The rotor box on the shaft contains A top wall, a peripheral wall, and a sticker are attached to the surface of the turn 2. The top wall of the surface of the magnet box has a patented end at the end of the rotor shaft center of the rotor box to cooperate with the stator coil to generate electromagnetic force, and the central part protrudes upward with a shield of a preset height. The top surface of the top wall when carrying a disc So that the center of the mutual agreement is positioned. The diameter of the disc rotating device described in item 1 is smaller than the tapered diameter of the disc. Table 3. The disc rotating device described in item 1 of the patent application scope, further comprising: The height of the straight iron below the wall. A flange extending radially outward from the lower end of the cover is arranged along the rotor box to the inner surface of the peripheral wall of the rotor box for planning the magnetics. 4. A disc rotating device includes: a rotating shaft; A ring is arranged around the core in a rotor box; the stator at the lower end of the rotating shaft includes a core and a coil; the rotor at the upper end of the rotating shaft surrounds the stator and has a rotor box including a top wall, One week wall, one sticker is attached to the turn Page 15 495739 VI. Patent application: The magnet on the inner surface of the peripheral wall of the sub-box to cooperate with the stator coil to generate electromagnetic force and a shield with a preset height protruding from the center of the top wall of the rotor box. When the upper surface of the top surface of the rotor box is carrying a disc, the center of the disc center and the rotor axis coincide with each other; and a seat portion extended and attached to the upper surface of the top wall of the rotor box, It is used to prevent slipping between the disc and the top wall of the rotor box. 5. The disc rotating device as described in item 4 of the scope of patent application, wherein the upper end of the shield has a tapered surface having a diameter smaller than the inner diameter of the disc. 6. As described in item 4 of the scope of patent application The disc rotating device further includes: a flange extending radially outward from the lower end of the shroud, which is directed along the lower surface of the top wall of the rotor box to the inner surface of the peripheral wall of the rotor box, for planning the height of the magnet .