CN119132349A - Optical disc drive and electronic device - Google Patents
Optical disc drive and electronic device Download PDFInfo
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- CN119132349A CN119132349A CN202310698597.0A CN202310698597A CN119132349A CN 119132349 A CN119132349 A CN 119132349A CN 202310698597 A CN202310698597 A CN 202310698597A CN 119132349 A CN119132349 A CN 119132349A
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- optical disc
- disc drive
- tray
- rigid sheet
- rigid
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Feeding And Guiding Record Carriers (AREA)
Abstract
本申请提供了一种光盘驱动器和电子设备，涉及光储存技术领域，以解决光盘在旋转时稳定性较差的技术问题。本申请提供的光盘驱动器可以包括外壳、托盘和支撑机构；外壳具有容纳腔，并且容纳腔的内壁具有安装面，托盘位于容纳腔内，托盘具有用于承托光盘的承托面，并且承托面与安装面相对设置；光盘驱动器还包括刚性片，刚性片可以设置在安装面或承托面中的至少一处；支撑机构位于容纳腔内，支撑机构可以将光盘悬置于安装面和承托面之间，并使光盘与刚性片之间保持间隙。在本申请实施例提供的光盘驱动器中，通过设置刚性片可以有效缩减光盘周围的空气的容量和涡流的运动空间，从而降低涡流对光盘的扰动。能明显提升光盘在旋转时的稳定性和安全性。
The present application provides an optical disc drive and an electronic device, which relates to the field of optical storage technology, in order to solve the technical problem that the stability of an optical disc is poor when rotating. The optical disc drive provided by the present application may include a housing, a tray and a supporting mechanism; the housing has a receiving cavity, and the inner wall of the receiving cavity has a mounting surface, the tray is located in the receiving cavity, the tray has a supporting surface for supporting the optical disc, and the supporting surface is arranged opposite to the mounting surface; the optical disc drive also includes a rigid sheet, which can be arranged on the mounting surface or at least one of the supporting surfaces; the supporting mechanism is located in the receiving cavity, and the supporting mechanism can suspend the optical disc between the mounting surface and the supporting surface, and keep a gap between the optical disc and the rigid sheet. In the optical disc drive provided in the embodiment of the present application, by setting a rigid sheet, the volume of air around the optical disc and the movement space of the eddy current can be effectively reduced, thereby reducing the disturbance of the eddy current to the optical disc. It can significantly improve the stability and safety of the optical disc when rotating.
Description
Technical Field
The present application relates to the field of optical storage technologies, and in particular, to an optical disc drive and an electronic device.
Background
In the field of optical storage, optical discs are commonly used as storage media for storing information. With the continuous development of technology, the recording density and capacity of the optical disc have been significantly improved. In practical applications, it is necessary to write information into an optical disc for storage by an optical disc drive, or to read information recorded on the optical disc. The optical disc drive mainly comprises a mechanism for driving the optical disc to rotate and a laser head for reading and writing information. Currently, the read/write speed of an optical disc drive is generally about 4.5M/s. In order to increase the read/write speed of an optical disc drive, a straightforward and feasible way is to increase the rotational speed of the optical disc. The higher rotational speed excites the natural frequency of the optical disc itself, thereby inducing vibration of the optical disc. However, vibration of the optical disc may reduce alignment accuracy between the optical disc and the laser head, thereby affecting read-write stability and efficiency of information.
Disclosure of Invention
The application provides an optical disc drive and an electronic device capable of effectively avoiding vibration of an optical disc.
In a first aspect, the present application provides an optical disc drive that may include a housing, a tray, and a support mechanism. The housing has a receiving cavity, and an inner wall of the receiving cavity has a mounting surface. The tray is located in the accommodating cavity, and the tray is provided with a bearing surface for bearing the optical disc, and the bearing surface is opposite to the mounting surface. In addition, the optical disc drive further comprises a rigid plate. Wherein, the rigid sheet can be arranged on the mounting surface or the rigid sheet can be arranged on the bearing surface. Or a rigid sheet may be provided on both the mounting and support surfaces. The supporting mechanism is positioned in the accommodating cavity, and can suspend the optical disk between the mounting surface and the bearing surface and keep a gap between the optical disk and the rigid sheet. In the optical disc drive provided by the embodiment of the application, the capacity of air around the optical disc and the movement space of the vortex can be effectively reduced by arranging the rigid plate, so that the disturbance of the vortex to the optical disc is reduced. The stability and the safety of the optical disk during rotation can be obviously improved.
When the device is specifically arranged, the rigid sheet can be made of metal materials such as copper and steel with higher rigidity or nonmetal materials with higher rigidity, and the rigid sheet is not easy to deform when being impacted by vortex, so that the energy of the vortex can be effectively reduced, and the disturbance of the vortex to the optical disk is reduced.
Wherein the surface of the rigid sheet facing the optical disc may be planar. And the surface roughness of the surface can be as small as possible, so that the strength of the vortex generated by the air flowing over the surface of the rigid sheet can be reduced.
In addition, when specifically set, the gap between the rigid sheet and the optical disc may be less than or equal to 0.8mm. When the gap between the rigid plate and the surface of the optical disc is smaller, the air capacity between the rigid plate and the optical disc can be effectively reduced. When the optical disc rotates at a high speed, the intensity of the eddy current generated on the surface of the optical disc is small, and the optical disc is not easy to vibrate obviously. In addition, the reasonable gap is not easy to cause mechanical collision between the optical disk and the rigid plate, which is beneficial to ensuring the use safety of the optical disk.
In one example, the projection of the optical disc onto the rigid sheet may lie within the contour of the rigid sheet. For example, the rigid sheet may have substantially the same shape profile as the optical disc, and the size of the rigid sheet may be equal to or slightly larger than the size of the optical disc. Of course, when the rigid plate and the optical disc are specifically arranged, the shape and the outline of the rigid plate and the optical disc may also be different, and the description is omitted herein.
In one example, the edges of the rigid sheet may have protrusions. I.e. the protrusions on the rigid sheet may provide an effective positioning of the optical disc. When the optical disc is placed on the surface of the rigid plate, the protrusions can be arranged around the edge of the optical disc, so that an effective positioning effect is achieved on the optical disc. In addition, under the action of the bulge, the rigid sheet is convenient to have a certain wrapping effect on the optical disc, so that the capacity of air around the optical disc is as low as possible, and the disturbance of vortex on the optical disc can be reduced.
When the optical disk tray is specifically arranged, the tray can be slidably arranged on the shell, and the sliding direction of the tray is parallel to the mounting surface, so that the optical disk can be conveniently taken and placed.
In one example, the support mechanism may include a support plate, a first fixed head, and a second fixed head. The supporting plate is slidably arranged in the accommodating cavity, and the sliding direction of the supporting plate is perpendicular to the mounting surface. The first fixing head is rotatably arranged on the shell and is provided with a first bonding surface. The second fixing head is rotatably arranged on the supporting plate and is provided with a second bonding surface. The first bonding surface and the second bonding surface are arranged oppositely and are used for clamping and fixing the optical disk. The backup pad is located the one side of deviating from the bearing face of tray, and the tray has the through-hole that supplies the second fixed head to wear to establish. The position of the optical disk can be controlled with higher precision through the supporting mechanism, so that the convenience and reliability in use can be improved. When the optical disc drive is specifically set, the optical disc drive may further include a motor, and the motor is in transmission connection with the first fixed head or the second fixed head and is used for driving the first fixed head or the second fixed head to rotate, so that the optical disc can be driven to rotate.
In one example, the optical disc drive further includes a first laser head. The first laser head is slidably arranged on the supporting plate, and the tray is provided with a notch for the first laser head to penetrate through, so that the laser head can read and write the optical disc.
In one example, the optical disc drive may further include a second laser head. The second laser head can be arranged on the supporting plate, and the tray is provided with a notch for the second laser head to penetrate. Or the second laser head is arranged on the shell and opposite to the first laser head.
In general, one, two or more laser heads may be included in an optical disc drive. The information read-write efficiency of the optical disc drive can be effectively improved by increasing the number of the laser heads. In addition, in the specific setting, when the setting number of the laser heads is two or more, the laser heads may be all located on the same side of the optical disc, or the laser heads may be distributed on both sides of the optical disc.
In a second aspect, the present application further provides an electronic device, which may include a controller and the above optical disc drive, where the controller may be connected to the supporting mechanism by a signal, so as to effectively control the posture of the supporting mechanism or the operation state of the motor. So as to effectively control the position and the rotating speed of the optical disc.
By applying the optical disc drive, the stability of the electronic equipment when information is read and written on the optical disc can be effectively improved. In addition, the optical disk is not easy to generate obvious vibration when rotating at high speed, and the information reading and writing efficiency and reliability can be effectively improved.
Drawings
Fig. 1 is a schematic diagram of a conventional optical disc drive according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a partial structure of an optical disc after deformation according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an optical disc drive according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a non-repetitive jitter frequency domain of an optical disc drive according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a conventional optical disc drive according to an embodiment of the present application;
FIG. 6 is a superimposed schematic diagram of the data simulation graphs of FIGS. 4 and 5;
FIG. 7 is a schematic diagram of an optical disc drive according to an embodiment of the present application;
FIG. 8 is a plan view of a rigid sheet according to an embodiment of the present application;
FIG. 9 is a schematic diagram of another optical disc drive according to an embodiment of the present application;
FIG. 10 is a plan view of another rigid sheet provided in an embodiment of the present application;
FIG. 11 is a plan view of another rigid sheet provided in an embodiment of the present application;
FIG. 12 is a schematic diagram of another optical disc drive according to an embodiment of the present application;
FIG. 13 is a schematic diagram of another optical disc drive according to an embodiment of the present application;
FIG. 14 is a schematic diagram of another optical disc drive according to an embodiment of the present application;
Fig. 15 is a schematic diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings.
In order to facilitate understanding of the optical disc drive provided in the embodiments of the present application, an application scenario thereof will be first described below.
The optical disc drive, also called an optical disc drive, is a device for reading information content from an optical disc or writing information content to an optical disc (or optical disc), and may be applied to electronic devices such as a desktop computer and a notebook computer. Or the optical disc drive may be a stand-alone device, and may be connected to a desktop computer, a notebook computer, a vehicle, or other devices by means of cable or wireless transmission.
As shown in fig. 1, the optical disc drive 01 mainly includes a mechanism 011 for driving the optical disc 02 to rotate and a laser head 012 for reading and writing information. Currently, the read/write speed of the optical disc drive 01 is generally about 4.5M/s. In order to increase the read/write speed of the optical disc drive 01, this can be achieved by increasing the rotational speed of the optical disc 02.
As shown in fig. 2, the higher rotation speed excites the natural frequency of the optical disc 02 itself, so that the optical disc 02 deforms perpendicular to the plane a of the optical disc 02, thereby inducing vibration of the optical disc 02. However, vibration of the optical disc 02 may reduce alignment accuracy between the optical disc 02 and the laser head 012, thereby affecting stable reading and writing of information. Specifically, when the optical disc 02 rotates at a high speed, air around the optical disc 02 is swirled to form a karman vortex street phenomenon, and the vortex excites the optical disc 02 to generate resonance, which reduces the accuracy and efficiency of the optical disc drive 01 when reading and writing the optical disc 02. In addition, when the vibration amplitude of the optical disc 02 is too large, the optical disc 02 is broken, so that the potential safety hazard is high.
Therefore, the embodiment of the application provides an optical disc drive capable of effectively improving the rotating speed of an optical disc and weakening the vibration of the optical disc.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings and specific embodiments.
The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include, for example, "one or more" such forms of expression, unless the context clearly indicates to the contrary. It should also be understood that in the following embodiments of the present application, "at least one" means one, two, or more than two.
Reference in the specification to "one embodiment" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in various places throughout this specification are not necessarily all referring to the same embodiment, but mean "one or more, but not all, embodiments" unless expressly specified otherwise. The terms "comprising," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
As shown in fig. 3, in one example provided by the present application, the optical disc drive 10 may include a housing 11, a tray 12, and a support mechanism 13. The housing 11 has a housing chamber 110, and an inner wall of the housing chamber 110 has a mounting surface 111. The tray 12 is positioned in the accommodation chamber 110, the tray 12 has a holding surface 121 for holding the optical disc 02, and the holding surface 121 is disposed opposite to the mounting surface 111. In addition, the optical disc drive 10 further includes a rigid sheet 14a and a rigid sheet 14b. The rigid plate 14b is provided on the mounting surface 111, and the rigid plate 14a is provided on the receiving surface 121. The supporting mechanism 13 is disposed in the accommodating chamber 110, and the supporting mechanism 13 can suspend the optical disc 02 between the mounting surface 111 and the bearing surface 121, and maintain a gap between the optical disc 02 and the rigid plates 14a and 14b. The components and operation of the supporting mechanism 13 will be described in detail below, and are not described herein.
In the optical disc drive 10 provided in the embodiment of the present application, the capacity of the air around the optical disc 02 and the movement space of the vortex can be effectively reduced by providing the rigid plates 14a and 14b, so as to reduce the disturbance of the vortex on the optical disc 02.
Alternatively, it is understood that when the rigid plates 14a and 14b are not provided, the clearance between the optical disc 02 and the mounting surface 111 is large, and the clearance between the optical disc 02 and the support surface 121 is large. So that more air remains between the optical disc 02 and the mounting surface 111 and between the optical disc 02 and the support surface 121. When the optical disc 02 rotates at a high speed, air around the optical disc 02 is driven to move to generate eddy currents. In addition, since much air remains around the optical disc 02, the flow space and the flow energy of the vortex are large, and large impact is easily generated on the optical disc 02, so that the optical disc 02 is obviously vibrated. In the example provided by the application, the space for accommodating air around the optical disc 02 can be significantly reduced by providing the rigid plate 14b on the mounting surface 111 and the rigid plate 14a on the supporting surface 121, so that the flow space and the flow energy of the vortex can be reduced, and the stability and the safety of the optical disc 02 during rotation can be significantly improved.
In addition, the rigid sheet 14a and the rigid sheet 14b may be made of a metal material such as copper or steel with high rigidity or a non-metal material with high rigidity, and the rigid sheet 14a and the rigid sheet 14b are not easy to deform when being impacted by the vortex, so that the energy of the vortex can be effectively reduced, and the disturbance of the vortex on the optical disc 02 can be reduced.
Alternatively, it will be appreciated that in practice, the housing 11 and tray 12 may be made of a material having a relatively low hardness, such as plastic or resin. When the rigid pieces 14a and 14b are not provided, the mounting surface 111 of the housing 11 and the receiving surface 121 of the tray 12 are easily deformed when they are subjected to the vortex impact, so that the instability of the air in flowing may be increased, and the instability of the optical disc 02 in rotating may be deteriorated. In the example provided by the application, since the rigid sheet 14a and the rigid sheet 14b have high hardness, the rigid sheet 14a and the rigid sheet 14b are not easy to deform when being impacted by the vortex, so that the energy of the vortex can be effectively reduced, and the disturbance of the vortex on the optical disc 02 can be reduced.
As shown in fig. 4 and 5, the embodiment of the present application also provides a data simulation of the non-repeatable runout (non-repeatable runout, NRRO) frequency domain with or without the rigid plates 14a and 14b in the optical disc drive 10.
Specifically, fig. 5 shows a simulated non-repetitive jitter frequency domain data plot when the rigid plates 14a and 14b are not provided in the optical disc drive 10. Wherein the abscissa is frequency in Hz. The ordinate represents noise in dB.
Fig. 4 shows a simulated non-repetitive jitter frequency domain data plot after placement of the rigid plates 14a and 14b in the optical disc drive 10. Wherein the abscissa is frequency in Hz. The ordinate represents noise in dB.
Fig. 6 is a superposition of the simulation data of fig. 4 and 5. Wherein lighter colored portions may be considered simulation data in fig. 4 and darker colored portions may be considered simulation data in fig. 5. As is apparent from fig. 6, after the rigid sheets 14a and 14b are provided in the optical disc drive 10, noise of the optical disc drive 10 when information is read from or written to the optical disc is significantly reduced.
For example, the non-repeatable error signal may drop from around 8.4% to around 5.5%.
As shown in fig. 3, in practical use, the specific dimensions of the gaps between the rigid sheets 14a, 14b and the optical disc 02 may be varied.
For example, in practical use, the gap between the rigid sheet 14a and the surface (e.g., the lower surface in fig. 3) of the optical disc 02 may be less than or equal to 0.8mm. The gap between the rigid sheet 14b and the surface (e.g., upper surface in fig. 3) of the optical disc 02 may be less than or equal to 0.8mm. When the gap between the rigid sheet 14a and the surface of the optical disc 02 is small, the capacity of air between the rigid sheet 14a and the optical disc 02 can be effectively reduced. Accordingly, when the gap between the rigid sheet 14b and the surface of the optical disc 02 is small, the air capacity between the rigid sheet 14b and the optical disc 02 can be effectively reduced. When the optical disc 02 rotates at a high speed, the intensity of the eddy current generated on the surface of the optical disc 02 is small, and it is not easy to cause significant vibration of the optical disc 02.
It is understood that, in practical use, the size of the gap between the rigid sheet 14a and the surface of the optical disc 02 may be any value of 0.8mm or less, such as 0.1mm, 0.2mm, or 0.7 mm. The size of the gap between the rigid sheet 14b and the surface of the optical disc 02 may be any value of 0.8mm or less, such as 0.1mm, 0.2mm, or 0.7 mm. The size of the gap between the optical disc 02 and the rigid plates 14a and 14b may be the same or different, and will not be described in detail here.
In addition, in the example provided by the present application, the rigid sheet 14a and the rigid sheet 14b are adopted, so that the difficulty in manufacturing the optical disc drive 10 is reduced, and higher precision is ensured. For example, when manufacturing, the rigid sheet 14a and the rigid sheet 14b may be manufactured and molded separately, and since the structural shapes of the rigid sheet 14a and the rigid sheet 14b are relatively simple, there is an advantage in that manufacturing is facilitated, and manufacturing accuracy of the rigid sheet 14a and the rigid sheet 14b can be effectively ensured. In addition, the surface roughness of the rigid plates 14a and 14b can be effectively controlled, which is beneficial to ensuring the stability of the optical disc drive 10 during operation.
In addition, the provision of the rigid plates 14a and 14b does not significantly increase the weight of the optical disc drive 10, which is advantageous in realizing a lightweight design of the optical disc drive 10.
For example, the housing 11 and the tray 12 of the optical disc drive 10 may be made of materials such as plastics or resins that are commonly used at present, so as to reduce the weight and manufacturing cost of the optical disc drive 10. In addition, because the rigid sheets 14a and 14b provide better structural strength, the housing 11 and tray 12 can be made of other lighter materials. This is advantageous in further reducing the weight of the optical disc drive 10, as well as expanding the flexibility in material selection of the housing 11 and tray 12.
In practical use, the surface of the rigid sheet 14a facing the optical disc 02 may be planar, and the surface roughness of the surface may be as small as possible, so that the strength of the vortex generated by the air flowing over the surface of the rigid sheet 14a may be reduced. Accordingly, the surface of the rigid sheet 14b facing the optical disc 02 may be planar, and the surface roughness of the surface may be as small as possible, so that the strength of the vortex generated by the air flowing through the surface of the rigid sheet 14b may be reduced.
In addition, as shown in fig. 3, in an example provided by the present application, one side of the supporting surface 121 of the tray 12 may further be raised 122. The protrusion 122 may effectively locate the optical disc 02 so that the optical disc 02 may be defined at a predetermined position of the tray 12. Wherein, the protrusion 122 may be annular, and after the optical disc 02 is placed on the surface of the rigid plate 14a, the protrusion 122 may be disposed around the edge of the optical disc 02, so as to effectively locate the optical disc 02, and prevent a larger positional deviation between the optical disc 02 and the tray 12.
When specifically provided, the rigid plates 14a and 14b may be substantially circular plate bodies, and the outer diameters of the rigid plates 14a and 14b may be larger than the outer diameter of the optical disc 02. I.e. the projection of the optical disc 02 onto the rigid sheet 14a may lie within the contour of the rigid sheet 14 a. Or the projection of the optical disc 02 onto the rigid sheet 14b may lie within the contour of the rigid sheet 14 b.
The rigid sheet 14a and the rigid sheet 14b may have the same structure or different dimensions. In addition, in some examples, the outer diameters of the rigid plates 14a and 14b may also be substantially the same as the outer diameter of the optical disc 02.
Of course, in some examples, the raised structures may also be provided on either rigid sheet 14a or rigid sheet 14b, or may also be provided on both rigid sheet 14a and rigid sheet 14 b.
For example, as shown in fig. 7, in one example provided by the present application, the edge of the rigid sheet 14a may be further provided with a protrusion 141a, and the protrusion 122 on the tray 12 may be omitted. I.e. the protrusions 141a on the rigid sheet 14a, can provide an effective positioning action for the optical disc 02. When the optical disc 02 is placed on the surface of the rigid plate 14a, the protrusion 141a may be disposed around the edge of the optical disc 02, thereby effectively positioning the optical disc 02.
In practical use, the rigid sheet 14a can be manufactured alone, which is advantageous in improving convenience in manufacturing. In addition, the manufacturing accuracy of the projection 141a can be ensured, and the positional accuracy between the optical disk 02 and the tray 12 or the rigid sheet 14a can be improved.
In a specific arrangement, the height dimension of the protrusion 141a is greater than the thickness dimension of the optical disc 02. Or the top of the projection 141a may abut against the rigid sheet 14b or maintain a small gap. Or it can be understood that under the action of the protrusion 141a, the rigid sheet 14a and the rigid sheet 14b can have a certain wrapping effect on the optical disc 02, so that the volume of the air around the optical disc 02 is as low as possible, and thus, the disturbance of the vortex on the optical disc 02 can be reduced.
Of course, in other examples, the height dimension of the protrusion 141a may be smaller than or equal to the thickness dimension of the optical disc 02. In addition, the surface of the rigid sheet 14b facing the rigid sheet 14a may be provided with protrusions. The protrusions 141a in the rigid sheet 14a and the protrusions in the rigid sheet 14b may be disposed opposite to each other or may be disposed alternately. During practical application, the setting position and the size of the protrusion can be reasonably adjusted according to practical requirements, and details are omitted here.
It will be appreciated that in the above examples, the optical disc drive 10 has been exemplified as including the rigid sheets 14a and 14b. However, in practical applications, only one rigid sheet may be included in the optical disc drive 10. That is, the optical disc drive 10 may include only the rigid sheet 14a or only the rigid sheet 14b. Wherein the number of the rigid sheets is not limited by the present application.
In addition, a laser head 15 may be included in the optical disc drive 10 for specific applications. Laser head 15 may include a laser diode, a lens, a photodetector, mechanical components for driving movement of laser head 15, and the like. The laser diode may generate a laser beam, and the laser beam may be irradiated on a recording surface (e.g., a lower surface in fig. 7) of the optical disc 02 after being processed by the lens. In which the laser beam can etch or otherwise chemically react to the recording surface of the optical disc 02 during information writing, thereby changing the beam reflection of the recording surface. During information reading, the laser beam generated by the laser diode can be irradiated on the recording surface of the optical disc 02 and reflected after being processed by the lens, and then the reflected laser beam is received by the light detector for identification. The controller may obtain information stored in the optical disc 02 based on the intensity of the reflected light beam received by the light detector.
In practical applications, the components for implementing the signal reading function, such as the laser head 15, included in the optical disc drive 10 may be of a type that is commonly used at present, and will not be described herein.
Where specifically provided, the laser head 15 may be provided in one, two or more. When the number of laser heads 15 is two or more, the plurality of laser heads 15 may be located on the same side of the optical disc 02 or on both sides of the optical disc 02.
For example, as shown in fig. 7, in one example provided by the present application, the optical disc drive 10 may include a laser head 15 therein, and the laser head 15 is disposed on a side of the tray 12 facing away from the supporting surface 121. As shown in fig. 7 and 8, the tray 12 and the rigid sheet 14a have a notch 142a through which the laser head 15 is inserted, so that the laser beam generated by the laser head 15 can be effectively directed to the optical disc 02 without being blocked by the tray 12 and the rigid sheet 14 a.
In practical use, the laser head 15 needs to move along the radial direction of the optical disc 02 when reading and writing data from and to the optical disc 02, and therefore, in the example provided by the present application, the notches 142a of the tray 12 and the rigid sheet 14a are elongated shapes extending in the radial direction.
In addition, as shown in fig. 9, in another example provided by the present application, two laser heads, namely a first laser head 15a and a first laser head 15b, are provided on the side of the rigid sheet 14a facing away from the optical disc 02. As shown in fig. 9 and 10, the tray 12 and the rigid sheet 14a have a notch 142a through which the laser head 15 is inserted, so that the laser beam generated by the laser head 15 can be effectively directed to the optical disc 02 without being blocked by the tray 12 and the rigid sheet 14 a.
As shown in fig. 11, since the laser head 15 is not provided on the side of the rigid sheet 14b facing away from the optical disc 02, the rigid sheet 14b is disc-shaped and is not provided with a notch for the laser head 15 to penetrate.
Of course, in other examples, when the laser head 15 is also disposed on the side of the rigid sheet 14b facing away from the optical disc 02, a notch similar to or identical to the notch 142a may be disposed in the rigid sheet 14b, which is not described herein.
For example, as shown in fig. 12, in another example provided by the present application, a first laser head 15a is provided on a side of the rigid sheet 14a facing away from the optical disc 02, a second laser head 15b is provided on a side of the rigid sheet 14b facing away from the optical disc 02, and the laser heads 15a are disposed opposite to the laser heads 15 b. Therefore, the rigid sheet 14a is provided with a notch through which the laser head 15a passes, and the rigid sheet 14b is provided with a notch 141b through which the laser head 15b passes.
When the tray 12 is set, the tray 12 may be fixed in the housing 11, or the tray 12 may be slidably set in the housing 11.
For example, in one example provided by the present application, the tray 12 is slidably disposed in the housing 11. Specifically, the tray 12 and the housing 11 may be slidably connected by a sliding rail or the like, so that the tray 12 may slide out of the housing 110 of the housing 11 or slide into the housing 110 of the housing 11. In addition, a motor may be further included in the optical disc drive 10, and the motor may be connected to the tray 12 through a gear or the like so that the tray 12 can be driven to slide. Wherein, when the optical disc 02 needs to be placed or taken out, the tray 12 can slide out of the accommodating cavity 110 of the outer shell 11 under the driving of the motor, so as to place the optical disc 02 on the tray 12 or take the optical disc 02 out of the tray 12. In use, the tray 12 can slide into the accommodating cavity 110 of the housing 11 under the drive of the motor, so that the housing 11 can effectively protect the tray 12. When the optical disc 02 is present on the tray 12, the tray 12 can also drive the optical disc 02 to a desired position.
In practical applications, the movement of the tray 12 and the mechanism for driving the tray 12 may be of a type that is commonly used at present, which is not limited by the present application.
In addition, as shown in fig. 13 and 14, in one example provided by the present application, the optical disc drive 10 may further include a supporting mechanism 13. The support mechanism 13 may include a support plate 131, a first fixing head 132, and a second fixing head 133. The support plate 131 is slidably disposed in the accommodating chamber 110, and a sliding direction of the support plate 131 is perpendicular to the mounting surface 111. The first fixing head 132 is rotatably disposed on the housing 11, and the first fixing head 132 has a first bonding surface 1321. The second fixing head 133 is rotatably disposed on the supporting plate 131, and the second fixing head 133 has a second attaching surface 1331. The first bonding surface 1321 is disposed opposite to the second bonding surface 1331, and is used for clamping and fixing the optical disc 02. The supporting plate 131 is located at a side of the tray 12 facing away from the bearing surface 121, and the tray 12 has a through hole for the second fixing head 133 to pass through.
In fig. 13, the support plate 131 is in a position before moving or lifting, and in fig. 14, the support plate 131 is in a position after moving or lifting, and at this time, the optical disc 02 is clamped and fixed between the first bonding surface 1321 and the second bonding surface 1331.
In practice, the second stationary head 133 may be immovably arranged on the housing 11 and can generate a rotational movement. When the support plate 131 moves in the direction of the second fixing head 133, the first fixing head 132 moves in the direction of the second fixing head 133 following the support plate 131. The top of the second fixing head 133 is in a convex structure, and the protrusion in the middle of the top end of the first fixing head 132 can pass through the central through hole 021 of the optical disc 02, so as to ensure that the rotation center of the optical disc 02 and the rotation center of the first fixing head 132 are approximately coincident. The first contact surface 1321 of the first fixing head 132 may abut against a surface (e.g., a lower surface in fig. 14) of the optical disc 02, and lift the optical disc 02, so that the optical disc 02 is separated from the rigid plate 14a, and the second contact surface 1331 of the second fixing head 133 abuts against the surface (e.g., an upper surface in fig. 14) of the optical disc 02. That is, the optical disc 02 may be clamped between the first bonding surface 1321 and the second bonding surface 1331, and a reasonable gap is maintained between the optical disc 02 and the rigid sheets 14a and 14 b.
In addition, in the example provided by the present application, the laser head 15 is provided on the support plate 131, and is movable with the support plate 131. During the upward lifting of the support plate 131, the laser head 15 may pass through the tray 12 and the notch 141b on the rigid sheet 14a, so that the laser head 15 can read and write the optical disc 02.
In the example provided by the present application, the first stationary head 132 is a driving rotating member and the second stationary head 133 is a driven rotating member. I.e., the optical disc drive 10 further includes a motor for driving the first fixed head 132 to rotate. After the optical disc 02 is clamped between the first bonding surface 1321 and the second bonding surface 1331, the motor may drive the first fixing head 132 to rotate, and the optical disc 02 and the second fixing head 133 may rotate synchronously with the first fixing head 132 under the clamping force.
It will be appreciated that in other examples, the second stationary head 133 may be a driving rotating member and the first stationary head 132 may be a driven rotating member, as the application is not limited in this respect.
Of course, in a specific arrangement, the optical disc drive 10 may further include a motor and a transmission member for driving the movement of the support plate 131 and the laser head 15. The tray 12, the first fixing head 132, the second fixing head 133, and the laser head 15 may be of a type commonly used at present and the corresponding transmission components are not described herein.
In practical applications, the optical disc drive 10 may be used as a stand-alone device, or the optical disc drive 10 may be applied to electronic devices such as a desktop computer and a notebook computer.
For example, as shown in fig. 15, the embodiment of the present application further provides an electronic device 20. A controller 21 and an optical disc drive 10 may be included. Specifically, the electronic device is a desktop computer. The desktop computer may include a chassis 22, a controller 21 disposed within the chassis 22, a power module 23, and the like. The optical disc drive 10 may be installed in the cabinet 22 and connected to the controller 21, the power module 23, and the like. The controller 21 may be in signal connection with the optical disc drive 10 and may be used to control the operating state of the optical disc drive 10. The controller 21 may be a central processor or a slave processor in a desktop computer. In some examples, a separate processor may also be provided in the optical disc drive 10, as the application is not limited in this regard.
When specifically provided, the controller 21 may be in signal connection with the motor in the supporting mechanism 13, and may be used to control the operation state of the motor, so as to effectively control the position of the tray 12. Or the controller 21 may be also in signal connection with other corresponding motors in the optical disc drive 10, so that the rotational speed of the optical disc or the position of the laser head can be effectively controlled. The optical disc drive 10 may be disposed in the chassis 22 in a conventional manner, and the control manner and the setting manner of the optical disc drive 10 are not limited in the present application.
The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (12)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310698597.0A CN119132349A (en) | 2023-06-13 | 2023-06-13 | Optical disc drive and electronic device |
| PCT/CN2024/098488 WO2024255738A1 (en) | 2023-06-13 | 2024-06-11 | Optical disc drive and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310698597.0A CN119132349A (en) | 2023-06-13 | 2023-06-13 | Optical disc drive and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119132349A true CN119132349A (en) | 2024-12-13 |
Family
ID=93765054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310698597.0A Pending CN119132349A (en) | 2023-06-13 | 2023-06-13 | Optical disc drive and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN119132349A (en) |
| WO (1) | WO2024255738A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000357385A (en) * | 1999-06-14 | 2000-12-26 | Nippon Densan Corp | Disk device |
| KR100450796B1 (en) * | 2002-01-05 | 2004-10-01 | 삼성전자주식회사 | Cover plate for optical disk drive |
| CN1229804C (en) * | 2002-04-27 | 2005-11-30 | 明基电通股份有限公司 | Vibration Suppression Mechanism for Optical Drives |
| TWM292771U (en) * | 2004-09-10 | 2006-06-21 | Tatung Co | Shock-absorbent structure of CD drive |
| KR20110107465A (en) * | 2010-03-25 | 2011-10-04 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Optical disc drive |
-
2023
- 2023-06-13 CN CN202310698597.0A patent/CN119132349A/en active Pending
-
2024
- 2024-06-11 WO PCT/CN2024/098488 patent/WO2024255738A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024255738A1 (en) | 2024-12-19 |
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