TWM255493U - Damping device for optical disc drive - Google Patents

Description

λ (j) [Technical field to which the new type belongs] Active movement = = ′ In particular, it refers to a vibration damping device that can vibrate. The role of the industry in the optical disc drive [previous technology] optical discs as a resource __ y_ low cost of data and other features storage has large storage capacity and materials, and _ optical discs can be staggered more than 2 5Gm can store about 6 sides of data for general use Tribute material storage media. The light is 2, so it is widely used by people to include a playback device for irradiating a laser beam to a disc, an optical reading head connected to the reflected light, and a light beam at a specific position at t The motor driving system for moving the pickup head, the π moving the optical disc and processing the exhausted light signal, and the signal used to vertically absorb the light beam emitted by it: disc = optical read head read head Need to be accurately positioned, and the vibration, dwelling on the pit, so the accuracy of the data read by the optical read head. ’Temple factors will affect the development of optical I3 technology. The speed of the light-beam machine ._ has been increasing from the early 150KB machine ’s red rotation speed. The device, that is, its rotating disk is now 52 times faster. However, when the disc is spinning at a high speed, it will cause the disc drive to vibrate. Fortunately, the place where the disc is made: the unevenness is at the same point as its geometric center, but: 2: should-set: poor, which will form an imbalance. When light: Dagger: Throbbing: Storage: Vibration due to imbalance will cause the optical pickup to be inaccurate ^:

V "---, Creation Instructions (2) The 5 recorded tracks on the film, you go to the outside of the optical disc drive, and the sound of reading the poor material is wrong. And the vibration will be. In addition to the operation of the optical disc drive, ^ annoying vibration noise. In addition to its working performance, the vibration generated by the outside world will affect the optical reading alkali, to a certain extent. For example, the impact of the player / disc player will also cause the optical pickup head to fall from a high place, etc. During transportation, it will learn from the readhead due to negligence or other factors, and the instant between the machine, the machine, and the ground Collision will be fatal, and it will directly lead to damage, which will affect its use of life-saving techniques and reduce vibration; work. board. However, it will directly lead to f = 10 million = = the cost of using a heavy metal base. On the other side, the weight of the half helmet increases, and the optical disc is raised. It is equipped with an optical pickup: the main 2 vibration absorption device, such as a rubber pad. The vibration absorption device is used to absorb the installation problems between the two substrates and the outer frame, such as the vibration absorption of a soft rubber pad. There are still some problems. It is necessary to restore it to absorb the force of the disc when it is rotating at high speed. The force is damped by it. The coefficient determines that a small number of soft damping pads can be vibrated. When a damping system is used, the vibration absorption device can effectively 'close two = hard resistance ^ energy must be used if the vibration absorption device is strongly impacted by the outside world. To buffer effect, coefficient. Therefore, it is difficult to achieve a sufficient damping of both of them. [New content] · The effect of absorption. The purpose of this creation is to provide — the technical solutions of this creation are:

, Absorbs the vibration generated inside the optical disc drive and: b :: shock device, which can effectively vibrate. M2 554 ^ 3- produced by Bujie on the role of the optical disc drive V. Creation instructions (3) The first damping element and a second damping element, the second damping element is housed in the first damping element, and the first There is a certain gap between the second damping elements. Compared with the conventional technology, the optical disc drive damping device of this creation adopts the set of first and second vibration damping elements, which can simultaneously meet the requirements of the optical disc drive for the damping device with different damping coefficients under different circumstances. When the optical disc rotates at high speed, the vibration frequency is high but the vibration amplitude is relatively low. At this time, because there is a certain gap between the first and second vibration damping elements, only the first vibration damping element will be deformed accordingly, and the damping device damps. The coefficient is small, so it can better absorb the vibration of such discs at high speed. When the optical disc drive is impacted by the outside world, the vibration amplitude is large, and the first damping element will be deformed together with the second damping element located therein, which will increase the damping coefficient of the entire damping device to meet the damping device at this time. Requires a high damping coefficient to better absorb vibration energy. Therefore, the created optical disc 'machine shock absorption device can effectively absorb light'. Λ The vibration generated inside the disc drive and the vibration generated by the outside world on the disc drive. [Embodiment] Referring to the first figure, an optical disc drive 100 has a supporting body 10, a supported body 20, and a shock absorbing device 30 connecting the supporting body and the supported body. The supporting body 10 may be a rectangular frame to support the supported body 20, and screw holes (not shown) are respectively provided at four corners of the supported body 20. The supported body 20 is a metal base plate on which a spindle motor 200 for rotating the optical disc and an optical pickup 2 1 0 for reading data on the optical disc are mounted. There are gaps (not shown) in the corners of the supported body 20-4. The damping device 30 is disposed in the notch of the supported body 20, and the captive screw 60 passes through the inside of the damping device 30 to cooperate with the screw hole of the supporting body 20, thereby fixing the supported body 20 and the damping device 30.

M255403- V. Creation instructions (4) on the support 10. Please refer to the second to third figures at the same time. The shock absorbing device 30 is made of rubber elastic material and includes a first vibration damping element 4 and a second vibration damping which can be accommodated in the first vibration damping element 4. Element 5, the first damping element 4 has a first damping coefficient, and the second damping element 5 has a second damping coefficient. The second damping coefficient is equal to or greater than the first damping coefficient to absorb larger amplitude vibrations.

The first vibration damping element 4 has a hollow circular tubular structure, and penetrates up and down to form a deformable space 40. It has a first body 41, a second body 42 and a neck 43 connecting the first and second bodies 41 and 42. The first body 41 is composed of a first portion 4 1 1 and a second portion 4 1 2, both of which are ring-shaped structures, and the width of the first portion 41 1 is larger than the width of the second portion 412, so that the first portion 41 1 is relatively The two portions 412 extend into the deformation space 40. A plurality of protrusions 44 are provided on the top surface (not shown) of the first body 41 to make the top surface contact the outside in a small area. The second body 42 includes a third portion 421 and a fourth portion 4 2 2. The third portion 4 2 1 is provided on the upper end of the fourth portion 4 2 2. The width of the third portion 421 is smaller than the width of the fourth portion 422. The fourth portion 422 extends into the deformation space 40 relative to the third portion 421. The bottom surface (not shown) of the fourth body 42 is also provided with a plurality of protrusions 47 to make the bottom surface contact the outside in a small area. The neck 4 3 _ is adapted to cooperate with the notch of the supported body 20 and extends into the deformation space 40 to form a flange 431. The flange 431 cooperates with the first body 41 to form a first receiving groove 45 on the upper side of the flange 4 3 1. The flange 431 cooperates with the second body 42 to form a second receiving slot 46 at the lower side of the flange 431.

Page 8 M2 5 5403- V. Creation instructions (5) The second vibration damping element 5 is also a hollow circular tube structure, which penetrates up and down to form a deformation space 50. The second vibration-damping element 5 has an upper end portion 51, a middle portion 52, and a lower end portion 53. The upper and lower end portions 5 1, 5 2 extend outward relative to the middle end portion 5 2. The height of the upper end portion 51 is equal to the height of the second portion 412 of the first body 41 of the first damping element 4, the height of the middle portion 52 is equal to the height of the flange 431 of the first damping element 4, and the height of the lower end portion 53 The height of the third portion 421 of the second body 42 of the first vibration-damping element 4 is equal to that of the second vibration-damping element 5 so that the second vibration-damping element 5 can be accommodated inside the first vibration-damping element 4. After the first and second vibration damping elements 4 and 5 of the vibration damping device 30 are assembled, the second vibration damping element 5 is housed inside the first vibration damping element 4 as a whole, and is located in the deformation space 4 of the first vibration damping element 4. Within 0. The middle portion of the second damping element 5 is opposite to the flange 431 of the first damping element 4. The upper and lower end portions 51 and 53 of the first damping element 4 are respectively inserted into the flange 431 of the first damping element 4. The first and second receiving grooves 45 and 46 on the side, and the upper and lower ends of the second vibration damping element 4 are a certain distance from the bottom of the first and second receiving grooves 4 5 and 4 6 so that the first, There is a certain gap between the second vibration-damping elements 4 and 5. In combination with the first to fourth figures, when assembling the shock absorbing device 30 with the support body 10 and the supported body 20, the neck 43 of the first vibration damping element 4 of the shock absorbing device 30 is snapped into In the gap of the supported body 20, the captive screw 60 passes through the deformation space 50 of the second damping element 5 of the shock absorbing device 30 and is inserted into the corresponding screw hole of the support body 10 to be supported. The body 20 is fixed on the support body 10.Because the damping device 30 of this creation uses the first and second vibration damping elements 4,5, the optical disc drive 100 is caused by imbalance during the disk reading process. .

Page 9 丨 Road M2554-V. Creation Note (6) The vibration is usually higher frequency and lower amplitude vibration. The first vibration damping element 4 is located outside the vibration damping device 3 0 and directly with the supported body 2 0. The contact causes deformation to absorb vibration. When the amplitude of these vibrations is small, the first vibration reduction element 4 is slightly deformed without affecting the second vibration reduction element 5. Therefore, the damping coefficient of the shock absorbing device 30 at this time is only the damping coefficient of the first vibration damping element 4, and the damping coefficient of the first vibration damping element 4 is small, so that it can absorb the vibration generated by the high-speed rotation of the optical disc. Features. When the optical disc drive is strongly impacted by the outside world, the vibration generated by the optical disc drive is usually large, and the first vibration damping element 4 is greatly deformed, so that the second vibration damping element 5 is deformed. At this time, the vibration damping device 3 0 The damping coefficient is the sum of the damping coefficients of the first and second vibration damping elements 4, 5 so that the energy generated by these transient impacts can be absorbed. To sum up, this creation complies with the requirements for new patents, and a patent application was filed in accordance with the law. However, the above is only a preferred embodiment of this creation. For example, those who are familiar with the skills of this case and equivalent modifications or changes made in accordance with the spirit of this case should be included in the scope of patent application below.

Page 10, M2 5.5-493_ Simple illustration

Figure--is an illustration of an optical disc drive with this creative disc drive vibration reduction device. The second picture is a perspective view of the shock absorbing device of the original optical disc drive. The third picture L is an exploded view of the shock absorbing device of the original optical disc drive. Explanation of main component symbols] First vibration damping element 4 Second vibration damping element 5 Support body 10 Supported body 20 Damping device 30 Deformation space 40, 50 First body 41 Second body 42 Neck 43 Protrusion 44, 47 First Storage slot 45 Second storage slot 46 Upper end portion 51 Middle portion 52 Lower end portion 53 Removal screw 60 Optical disc drive 100 Spindle motor 200 Optical pickup 210 First part 411 Second part 412 Second part 421 Fourth part 422 Flange 431 First 11 pages

Claims (1)

M? 55433- Patent application scope 1 · A light-first-second-second vibration-damping element among them, 2. If the first through-disk vibration damping device is applied, it includes: a vibration-damping element; a vibration-damping element that contains There is a certain gap between the first vibration damping element and the first vibration damping element; there is a certain gap between the vibration damping element and the second vibration damping element. The vibration damping device of the optical disc drive described in the first item of the patent scope, wherein the second and the second vibration damping elements are hollow tubular structures and each has a deformation space. The vibration damping device of the optical disc drive according to item 2, wherein the first damping both end faces 3. As in the patent application, the damping element includes a first body and the second part. 4. If applying for a patent, the neck extends inwardly into a receiving slot, the second body and a neck. 5. If applying for the second part. 6. The vibration damping device of the optical disc drive as described in item 3, wherein a flange is extended, and the flange forms a first flange with the first body and a second receiving groove with the second body. The vibration damping device of the optical disc drive described in item 4, wherein the patented vibration damping element includes an upper end, a middle portion, and a lower end. According to the patent application, one of the second vibration damping element grooves described in the table 5 of the optical disc drive damping device, wherein the upper end portion of the piece is contained in the first damping element and the lower end portion is contained in the vibration damper. The vibration damping device of the optical disc drive described in the second item of Item 6 above, wherein the upper end of the piece and the first receiving surface of the first vibration damping element have a certain gap. Page] 2 M? 554a3_ VI. Patent application scope 8. The vibration damping device of the optical disc drive as described in item 7 of the patent application scope, wherein the lower end portion of the second vibration reduction element and the second accommodation of the first vibration reduction element There is a certain gap between one surface of the groove. 9. The vibration damping device for an optical disc drive according to item 8 of the scope of patent application, wherein the first damping element has a first damping coefficient, the second damping element has a second damping coefficient, and the second damping coefficient Is equal to or greater than the first damping coefficient. 1 0. An optical disc drive using the shock absorber of the optical disc drive described in item 1 of the scope of patent application, comprising: a supported body, the supported body is provided with a spindle motor and an optical pickup 〇σ, Page 13