Optical disc drives and electronic devices

Abstract

This application provides an optical disc drive and electronic device for solving the technical problem of poor stability of rotating optical discs in the field of optical storage technology. The optical disc drive provided in this application may include a housing, a tray, and a support mechanism. The housing has a receptacle, the inner wall of which has a mounting surface. The tray is located within the receptacle and has a holding surface for holding an optical disc, the holding surface being located opposite the mounting surface. The optical disc drive further includes a rigid sheet, which may be located on at least one of the mounting surface or the holding surface. The support mechanism is located within the receptacle and can suspend the optical disc between the mounting surface and the holding surface, maintaining a gap between the optical disc and the rigid sheet. In the optical disc drive provided in the embodiments of this application, the placement of the rigid sheet effectively reduces the air volume and vortex motion space around the optical disc, thereby reducing vortex turbulence on the optical disc. In this way, the stability and safety of the rotating optical disc are greatly improved.

Description

Technical Field

[0001] This application relates to optical storage technology, particularly to optical disk drives and electronic devices.

Background Art

[0002] In the field of optical storage, optical disks are usually used as storage media for storing information. With the continuous development of technology, the performance such as the recording density and capacity of optical disks has been greatly improved. In actual applications, it is necessary to write and store information on an optical disk via an optical disk drive, or to read the information recorded on the optical disk via an optical disk drive. An optical disk drive mainly includes a mechanism for rotationally driving an optical disk and a laser head for reading / writing information. Currently, the reading / writing speed of an optical disk drive is generally about 4.5M / s. A direct and feasible way to improve the reading / writing speed of an optical disk drive is to increase the rotation speed of the optical disk. When the rotation speed is high, the natural vibration frequency of the optical disk may be excited, and the optical disk may vibrate. However, the vibration of the optical disk may reduce the alignment accuracy between the optical disk and the laser head. As a result, the stability and efficiency of information reading / writing may be affected.

Summary of the Invention

[0003] This application provides an optical disk drive and an electronic device that can effectively avoid the vibration of an optical disk.

[0004] According to a first embodiment, the present application provides an optical disc drive. The optical disc drive may include a housing, a tray, and a support mechanism. The housing has a receptacle, the inner wall of which has a mounting surface. The tray is located within the receptacle and has a holding surface for holding an optical disc, the holding surface being located opposite the mounting surface. Furthermore, the optical disc drive further includes a rigid sheet. The rigid sheet may be located on the mounting surface, or it may be located on the holding surface, or it may be located on both the mounting surface and the holding surface. The support mechanism is located within the receptacle. The support mechanism can suspend the optical disc between the mounting surface and the holding surface and maintain a gap between the optical disc and the rigid sheet. In the optical disc drive provided in this embodiment of the present application, the rigid sheet is positioned to effectively reduce the air volume and vortex motion space around the optical disc, thereby reducing vortex turbulence on the optical disc. In this way, the stability and safety of the rotating optical disc can be greatly improved.

[0005] In certain configurations, the rigid sheet may be made of a highly rigid metallic material such as copper or steel, or a highly rigid non-metallic material. The rigid sheet is resistant to deformation even when subjected to the impact of vortex currents. Therefore, the energy of the vortex currents can be effectively reduced, and the turbulence of the vortex currents on the optical disc can be reduced.

[0006] The surface of the rigid sheet that faces the optical disc may be flat. Furthermore, the surface roughness of this surface can be made as small as possible to reduce the intensity of the vortices generated when air flows over the surface of the rigid sheet.

[0007] Furthermore, in certain configurations, the gap between the rigid sheet and the optical disc may be 0.8 mm or less. When the gap between the rigid sheet and the surface of the optical disc is small, the air volume between the rigid sheet and the optical disc can be effectively reduced. When the optical disc is rotating at high speed, the intensity of the vortex generated on the surface of the optical disc is low, and the optical disc is less likely to vibrate significantly. Also, if the gap size is appropriate, mechanical collisions between the optical disc and the rigid sheet are less likely to occur. This ensures the safety of the optical disc.

[0008] In one example, the projection of the optical disc onto a rigid sheet may fall within the contour lines of the rigid sheet. For instance, the shape and contour lines of the rigid sheet may be substantially identical to those of the optical disc, and the size of the rigid sheet may be equal to or slightly larger than that of the optical disc. Of course, in certain configurations, the shape and contour lines of the rigid sheet may differ from those of the optical disc. Further details will not be discussed here.

[0009] In one example, the edges of the rigid sheet may have protrusions. Specifically, the protrusions on the rigid sheet can effectively locate the optical disc. By positioning the protrusions around the edges of the optical disc after it has been placed on the surface of the rigid sheet, the optical disc can be effectively located. Furthermore, the action of the protrusions allows the rigid sheet to easily achieve a specific wrapping effect around the optical disc, and by minimizing the air volume around the optical disc, turbulence of eddies around the optical disc can be reduced.

[0010] In a particular configuration, the tray may be slidably positioned within the housing, with the sliding direction of the tray parallel to the mounting surface, facilitating the removal and placement of optical discs.

[0011] In one example, the support mechanism may include a support plate, a first fastening head, and a second fastening head. The support plate is slidably positioned within the receptacle, and its sliding direction is perpendicular to the mounting surface. The first fastening head is rotatably positioned within the housing and has a first mounting surface. The second fastening head is rotatably positioned within the support plate and has a second mounting surface. The first and second mounting surfaces are positioned opposite each other and configured to clamp and secure the optical disc. The support plate is positioned on the tray side, away from the holding surface, and the tray has a through-hole for the second fastening head to pass through. The position of the optical disc can be controlled with high precision via the support mechanism, improving convenience and reliability during use. In certain configurations, the optical disc drive may further include a motor. The motor is drivably connected to either a first or second fixed head and is configured to rotate the first or second fixed head, thereby rotating the optical disc.

[0012] In one example, the optical disc drive further includes a first laser head. The first laser head is slidably positioned on a support plate, and the tray has a slot for the first laser head to pass through, thereby enabling the laser head to read / write the optical disc.

[0013] In one example, the optical disc drive may further include a second laser head. The second laser head may be located on a support plate, and the tray may have slots for the second laser head to pass through. Alternatively, the second laser head may be located on a housing and positioned opposite the first laser head.

[0014] In conclusion, an optical disc drive may include one laser head, two laser heads, or more laser heads. Increasing the number of laser heads can effectively improve the read / write efficiency of the optical disc drive. Furthermore, when two or more laser heads are arranged in a particular configuration, the laser heads may be located on the same side of the optical disc, or they may be distributed on both sides of the optical disc.

[0015] According to a second aspect, the present invention further provides an electronic device, which may include a controller and the aforementioned optical disc drive. The controller is connected to a support mechanism using signals and can effectively control the posture of the support mechanism or the operating state of the motor. In this way, the position and rotational speed of the optical disc can be effectively controlled.

[0016] By using the optical disc drive described above, the stability of the electronic device during the reading / writing of information to the optical disc can be effectively improved. Furthermore, even when the optical disc is rotated at high speed, the disc is less likely to vibrate significantly, thereby effectively improving the efficiency and reliability of information reading / writing. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic diagram showing the structure of a conventional optical disc drive according to one embodiment of the present invention. [Figure 2] This figure shows a modified partial structure of an optical disc according to one embodiment of the present invention. [Figure 3] This figure shows the structure of an optical disc drive according to one embodiment of the present invention. [Figure 4] This is a data simulation diagram of the non-repetitive runout frequency domain of an optical disc drive according to one embodiment of the present invention. [Figure 5] This is a data simulation diagram of the non-repetitive runout frequency domain of a conventional optical disc drive according to one embodiment of the present invention. [Figure 6]It is a figure obtained by superimposing the data simulation diagrams of FIGS. 4 and 5. [Figure 7] It is a figure showing the structure of an optical disk drive according to an embodiment of the present application. [Figure 8] It is a plan view of a rigid sheet according to an embodiment of the present application. [Figure 9] It is a figure showing the structure of another optical disk drive according to an embodiment of the present application. [Figure 10] It is a plan view of another rigid sheet according to an embodiment of the present application. [Figure 11] It is a plan view of another rigid sheet according to an embodiment of the present application. [Figure 12] It is a figure showing the structure of another optical disk drive according to an embodiment of the present application. [Figure 13] It is a figure showing the structure of another optical disk drive according to an embodiment of the present application. [Figure 14] It is a figure showing the structure of another optical disk drive according to an embodiment of the present application. [Figure 15] It is a schematic diagram showing the structure of an electronic device according to an embodiment of the present application.

Mode for Carrying Out the Invention

[0018] In order to make the object, technical solution, and advantages of the present application clearer, the present application will be described in more detail below with reference to the accompanying drawings.

[0019] In order to facilitate the understanding of the optical disk drive provided in the embodiment of the present application, the application scenario of the optical disk drive will be described first below.

[0020] An optical disc drive, also known as an optical drive, is a device configured to read information content from an optical disc or write information content to an optical disc (or optical disk). An optical disc drive can be used in electronic devices such as desktop computers or laptop computers. Alternatively, an optical disc drive may be a standalone device and may be connected to a desktop computer, laptop computer, or vehicle via a cable, wireless transmission, or other means.

[0021] As shown in Figure 1, the optical disc drive 01 mainly includes a mechanism 011 that rotates the optical disc 02 and a laser head 012 that reads and writes information. Currently, the read / write speed of the optical disc drive 01 is generally about 4.5 Mbps. To improve the read / write speed of the optical disc drive 01, it is possible to increase the rotation speed of the optical disc 02.

[0022] As shown in Figure 2, high rotational speeds excite the natural frequency of the optical disc 02, causing it to deform in a direction perpendicular to the plane A on which it is located, potentially causing it to vibrate. However, vibration of the optical disc 02 can reduce the alignment accuracy between the optical disc 02 and the laser head 012. As a result, this can affect stable information reading / writing. Specifically, when the optical disc 02 is rotated at high speed, the air around the optical disc 02 forms vortices, generating a Karman vortex street phenomenon. This vortex flow excites the optical disc 02, causing resonance and reducing the accuracy and efficiency of reading / writing the optical disc 02 by the optical disc drive 01. Furthermore, if the vibration amplitude of the optical disc 02 is excessively large, damage to the optical disc 02 may be amplified. Therefore, security risks increase.

[0023] Accordingly, embodiments of the present invention provide an optical disc drive that can effectively increase the rotational speed of the optical disc and reduce vibration of the optical disc.

[0024] To further clarify the purpose, technical solution, and advantages of this application, the application will be described in more detail below with reference to the attached drawings and specific embodiments.

[0025] The terms used in the following embodiments are intended solely to describe specific embodiments and are not intended to limit the Application. The singular terms “one,” “one,” and “this” used herein and in the appended claims include forms such as “one or more,” unless otherwise explicitly specified in the context. Furthermore, in the following embodiments of the Application, “at least one” will be understood to mean one, two, or more.

[0026] References to “embodiments” and similar terms in this specification mean that one or more embodiments of the Application include certain features, structures, or characteristics described in conjunction with those embodiments. Accordingly, phrases such as “in one embodiment,” “in some embodiments,” and “in another embodiment,” appearing in various places in this specification, do not necessarily refer to the same embodiment, but rather refer to “one or more embodiments, but not all of the embodiments,” unless otherwise specifically emphasized. All terms “including,” “having,” and variations thereof, mean “including, but not limited to,” unless otherwise specifically emphasized.

[0027] As shown in Figure 3, in the example provided herein, the optical disc drive 10 may include a housing 11, a tray 12, and a support mechanism 13. The housing 11 has a receptacle 110, the inner wall of which has a mounting surface 111. The tray 12 is located inside the receptacle 110 and has a holding surface 121 for holding an optical disc 02, the holding surface 121 is located opposite the mounting surface 111. The optical disc drive 10 also further includes a rigid sheet 14a and a rigid sheet 14b. The rigid sheet 14b is located on the mounting surface 111 and the rigid sheet 14a is located on the holding surface 121. The support mechanism 13 is located inside the receptacle 110. The support mechanism 13 suspends the optical disc 02 between the mounting surface 111 and the holding surface 121, maintaining the gap between the optical disc 02 and the rigid sheet 14a, and the gap between the optical disc 02 and the rigid sheet 14b. The components and operating modes of the support mechanism 13 will be described in detail below. Further details will not be explained here.

[0028] In the optical disc drive 10 provided in this embodiment of the present invention, the rigid sheet 14a and rigid sheet 14b are arranged to effectively reduce the air volume around the optical disc 02 and the space for vortex motion, thereby reducing turbulence of the vortex flow to the optical disc 02.

[0029] Alternatively, if rigid sheets 14a and 14b are not placed, it can be seen that the gap between the optical disc 02 and the mounting surface 111 is large, and the gap between the optical disc 02 and the holding surface 121 is also large. In this way, a large amount of air is held between the optical disc 02 and the mounting surface 111, and between the optical disc 02 and the holding surface 121. When the optical disc 02 rotates at high speed, it moves the air around the optical disc 02, generating vortices. Also, because a large amount of air is retained around the optical disc 02, the flow space and flow energy of the vortices are large, and large shocks are likely to occur on the optical disc 02. As a result, the optical disc 02 vibrates greatly. In the example provided in this application, rigid sheet 14b is placed on the mounting surface 111 and rigid sheet 14a is placed on the holding surface 121, thereby significantly reducing the space that accommodates air around the optical disc 02. Accordingly, the flow space and flow energy of the vortices can be reduced, and the stability and safety of the rotating optical disc 02 can be greatly improved.

[0030] Furthermore, both rigid sheet 14a and rigid sheet 14b may be made of a highly rigid metallic material such as copper or steel, or a highly rigid non-metallic material. Rigid sheet 14a and rigid sheet 14b do not easily deform even when subjected to the impact of vortex flow. Therefore, the energy of the vortex flow can be effectively reduced, and the turbulence of the vortex flow on the optical disc 02 can be reduced.

[0031] Alternatively, in actual applications, it will be understood that the housing 11 and tray 12 may be made of a low-hardness material such as plastic or resin. If the rigid sheets 14a and 14b are not present, the mounting surface 111 of the housing 11 and the holding surface 121 of the tray 12 will easily deform when subjected to the impact of vortex flow. As a result, the instability of the airflow will increase, which may increase the instability of the optical disc 02 during rotation. In the example provided herein, since both the rigid sheet 14a and 14b are of high hardness, the rigid sheets 14a and 14b will not easily deform even when subjected to the impact of vortex flow. Therefore, the energy of the vortex flow can be effectively reduced, and the turbulence of the vortex flow on the optical disc 02 can be reduced.

[0032] As shown in Figures 4 and 5, embodiments of the present invention further provide data simulation diagrams in the non-repeatable runout (NRRO) frequency domain for cases where the optical disc drive 10 has rigid sheets 14a and 14b, and for cases where the optical disc drive 10 does not have rigid sheets 14a and 14b.

[0033] Specifically, Figure 5 shows a data diagram of the non-repeatable runout frequency domain obtained by simulation when the rigid sheets 14a and 14b are not placed in the optical disc drive 10. The horizontal coordinate represents frequency in Hz, and the vertical coordinate represents noise in dB.

[0034] Figure 4 is a data diagram of the non-repeatable runout frequency region obtained from a simulation when rigid sheets 14a and 14b are placed in the optical disc drive 10. The horizontal axis represents frequency (unit: Hz), and the vertical axis represents noise (unit: dB).

[0035] Figure 6 is a superimposed diagram of the simulation data from Figures 4 and 5. The lighter colored areas can be considered to be the simulation data from Figure 4, and the darker colored areas can be considered to be the simulation data from Figure 5. From Figure 6, it can be clearly seen that when rigid sheets 14a and 14b are placed on the optical disc drive 10, the noise generated when the optical disc drive 10 reads / writes information to the optical disc is significantly reduced.

[0036] For example, non-repetitive error signals may be reduced from approximately 8.4% to approximately 5.5%.

[0037] As shown in Figure 3, in actual applications, the specific sizes of the gap between the rigid sheet 14a and the optical disc 02, and the gap between the rigid sheet 14b and the optical disc 02, can vary.

[0038] For example, in actual applications, the gap between the rigid sheet 14a and the surface of the optical disc 02 (e.g., the bottom surface in Figure 3) may be 0.8 mm or less. The gap between the rigid sheet 14b and the surface of the optical disc 02 (e.g., the top surface in Figure 3) may also be 0.8 mm or less. When the gap between the rigid sheet 14a and the surface of the optical disc 02 is small, the air volume between the rigid sheet 14a and the optical disc 02 can be effectively reduced. Similarly, when the gap between the rigid sheet 14b and the surface of the optical disc 02 is small, the air volume between the rigid sheet 14b and the optical disc 02 can be effectively reduced. When the optical disc 02 rotates at high speed, the intensity of the vortex generated on the surface of the optical disc 02 is low, and it is not easy for the optical disc 02 to vibrate significantly.

[0039] In actual applications, the size of the gap between the rigid sheet 14a and the surface of the optical disc 02 can be any value less than 0.8 mm, for example, 0.1 mm, 0.2 mm, or 0.7 mm. The size of the gap between the rigid sheet 14b and the surface of the optical disc 02 can be any value less than 0.8 mm, for example, 0.1 mm, 0.2 mm, or 0.7 mm. The size of the gap between the optical disc 02 and the rigid sheet 14a, and the size of the gap between the optical disc 02 and the rigid sheet 14b, may be the same or different. Further details are not described here.

[0040] Furthermore, in the example provided herein, since rigid sheets 14a and 14b are used, the difficulty of manufacturing the optical disc drive 10 is reduced and high precision is ensured. For example, in the manufacturing process, rigid sheets 14a and 14b can be manufactured and molded independently. Because the structure and shape of rigid sheets 14a and 14b are simple, their manufacture is easy, and the manufacturing precision of rigid sheets 14a and 14b can be effectively ensured. In addition, the surface roughness of rigid sheets 14a and 14b can be effectively controlled. This ensures the stability of the optical disc drive 10 during operation.

[0041] Furthermore, the rigid sheets 14a and 14b are positioned without significantly increasing the weight of the optical disc drive 10. This enables a lightweight design for the optical disc drive 10.

[0042] For example, the housing 11 and tray 12 of the optical disc drive 10 can be made from currently common materials such as plastic or resin, thereby reducing the weight and manufacturing cost of the optical disc drive 10. Furthermore, since the rigid sheets 14a and 14b provide good structural strength, the housing 11 and tray 12 can also be made from other lightweight materials. This allows for further weight reduction of the optical disc drive 10 and improves the flexibility of material selection for the housing 11 and tray 12.

[0043] In actual applications, the surface of the rigid sheet 14a facing the optical disc 02 is preferably flat, and its surface roughness is preferably as small as possible, thereby reducing the intensity of vortices generated when air passes over the surface of the rigid sheet 14a. Similarly, the surface of the rigid sheet 14b facing the optical disc 02 is preferably flat, and its surface roughness is preferably as small as possible, thereby reducing the intensity of vortices generated when air passes over the surface of the rigid sheet 14b.

[0044] Furthermore, as shown in Figure 3, in the example provided herein, there may be an additional projection 122 on one side of the holding surface 121 of the tray 12. The projection 122 can effectively locate the optical disc 02 and restrict the optical disc 02 to a predetermined position on the tray 12. The projection 122 may be annular. When the optical disc 02 is placed on the surface of the rigid sheet 14a, the projection 122 is positioned around the edge of the optical disc 02, effectively locating the optical disc 02 and avoiding large misalignments between the optical disc 02 and the tray 12.

[0045] In a particular configuration, the rigid sheets 14a and 14b may be approximately circular sheets, and the outer diameters of the rigid sheets 14a and 14b may be larger than the outer diameter of the optical disc 02. In other words, the projection of the optical disc 02 onto the rigid sheet 14a may be within the contour of the rigid sheet 14a. Alternatively, the projection of the optical disc 02 onto the rigid sheet 14b may be within the contour of the rigid sheet 14b.

[0046] The structure and size of rigid sheets 14a and 14b may be the same or different. Furthermore, in some examples, the outer diameters of rigid sheets 14a and 14b may be approximately the same as the outer diameter of optical disc 02.

[0047] Of course, in some examples, the protruding structure may be placed on rigid sheet 14a or rigid sheet 14b instead, or on both rigid sheet 14a and rigid sheet 14b.

[0048] For example, as shown in Figure 7, in the example provided herein, the projections 141a are further arranged on the edge of the rigid sheet 14a, and the projections 122 on the tray 12 may be omitted. Specifically, the projections 141a on the rigid sheet 14a can effectively locate the optical disc 02. When the optical disc 02 is placed on the surface of the rigid sheet 14a, the projections 141a are arranged around the edge of the optical disc 02, allowing the optical disc 02 to be effectively located.

[0049] In actual applications, the rigid sheet 14a can be manufactured independently. This improves convenience in the manufacturing process. Furthermore, since good manufacturing precision of the protrusions 141a can be ensured, the positional accuracy between the optical disc 02 and the tray 12, or between the optical disc 02 and the rigid sheet 14a, can be improved.

[0050] In a particular configuration, the height of the projection 141a is greater than the thickness of the optical disc 02. Alternatively, the top of the projection 141a may contact the rigid sheet 14b, or maintain a small gap between it and the rigid sheet 14b. Alternatively, it may be understood that the action of the projection 141a causes the rigid sheets 14a and 14b to exert a predetermined wrapping effect on the optical disc 02, thereby reducing turbulence in the vortex flow to the optical disc 02 by minimizing the air volume around the optical disc 02 as much as possible.

[0051] Of course, in another example, the height of the projection 141a may alternatively be less than or equal to the thickness of the optical disc 02. Alternatively, the projection may be positioned on the surface of the rigid sheet 14b that faces the rigid sheet 14a. The projection 141a on the rigid sheet 14a and the projection on the rigid sheet 14b may be positioned opposite each other or alternately. In actual applications, the position and size of the projections may be adjusted as appropriate based on actual requirements. Further details will not be described here.

[0052] In the above example, the optical disc drive 10 was described using an example in which rigid sheets 14a and 14b are included. However, in actual applications, the optical disc drive 10 may alternatively include only one rigid sheet. Specifically, the optical disc drive 10 may include only rigid sheet 14a or only rigid sheet 14b. The number of rigid sheets to be arranged is not limited in this application.

[0053] In addition, in certain applications, the optical disc drive 10 may further include a laser head 15. The laser head 15 may include a laser diode, a lens, a photodetector, and mechanical parts for driving and moving the laser head 15. The laser diode may generate a laser beam, which may be processed by the lens and then irradiated onto the recording surface of the optical disc 02 (for example, the bottom surface in Figure 7). When writing information, the laser beam may cause a chemical reaction such as etching on the recording surface of the optical disc 02, which may change the reflection state of the laser beam on the recording surface. When reading information, the laser beam generated by the laser diode is processed by the lens, irradiated onto the recording surface of the optical disc 02, and after reflection, the reflected laser beam can be received and identified by the photodetector. The controller can acquire the information stored in the optical disc 02 based on the intensity of the reflected laser beam received by the photodetector.

[0054] In actual applications, components such as the laser head 15 included in the optical disc drive 10 and configured to perform signal reading functions can be of currently common types. Further details will not be provided here.

[0055] In a particular configuration, one, two, or more laser heads 15 may be arranged. Furthermore, if there are two or more laser heads 15, the two or more laser heads 15 may be located on the same side of the optical disc 02, or they may be located on opposite sides of the optical disc 02.

[0056] For example, as shown in Figure 7, in the example provided herein, the optical disc drive 10 may include one laser head 15, which is located on the side of the tray 12, away from the holding surface 121. As shown in Figures 7 and 8, the tray 12 and rigid sheet 14a have slots 142a through which the laser head 15 passes, so that the laser beam generated by the laser head 15 can effectively irradiate the optical disc 02 without being obstructed by the tray 12 and rigid sheet 14a.

[0057] In actual applications, when the laser head 15 reads or writes data to the optical disc 02, it needs to move radially along the optical disc 02. Therefore, in the example provided in this application, both the slot 142a of the tray 12 and the rigid sheet 14a are elongated strips that extend radially.

[0058] Furthermore, as shown in Figure 9, in another example provided herein, two laser heads are positioned on the side of the rigid sheet 14a, away from the optical disc 02, and the two laser heads are the first laser head 15a and the first laser head 15b, respectively. As shown in Figures 9 and 10, the tray 12 and the rigid sheet 14a have slots 142a through which the laser head 15 can pass, so that the laser beam emitted from the laser head 15 can be efficiently irradiated onto the optical disc 02 without being obstructed by the tray 12 and the rigid sheet 14a.

[0059] As shown in Figure 11, the laser head 15 is not located on the side of the rigid sheet 14b that is away from the optical disc 02. Therefore, the rigid sheet 14b is disc-shaped and does not have a slot for the laser head 15 to pass through.

[0060] Of course, as another example, if the laser head 15 is located on the side of the rigid sheet 14b, away from the optical disc 02, a slot identical or similar to slot 142a may be placed on the rigid sheet 14b. Details will not be explained here.

[0061] For example, as shown in Figure 12, in another example provided in the present application, the first laser head 15a is located on the side of the rigid sheet 14a away from the optical disc 02, and the second laser head 15b is located on the side of the rigid sheet 14b away from the optical disc 02, with the first laser head 15a located on the opposite side of the second laser head 15b. Thus, a slot for the first laser head 15a to pass through is located in the rigid sheet 14a, and a slot 141b for the second laser head 15b to pass through is located in the rigid sheet 14b.

[0062] When positioning the tray 12, the tray 12 may be fixed to the housing 11, or the tray 12 may be slidably positioned on the housing 11.

[0063] For example, in the example provided in this application, the tray 12 may be slidably positioned in the housing 11. Specifically, a sliding connection may be implemented between the tray 12 and the housing 11 via a structure such as a slide rail, thereby allowing the tray 12 to slide out of or into the receptacle 110 of the housing 11. The optical disc drive 10 may also further include a motor. The motor may be connected to the tray 12 via a structure such as a gear, thereby allowing the tray 12 to slide. When it is necessary to place or remove the optical disc 02, the motor can be driven to slide the tray 12 out of the receptacle 110 of the housing 11, allowing the optical disc 02 to be placed in or removed from the tray 12. During use, the motor drives the tray 12 into the receptacle 110 of the housing 11, thereby allowing the housing 11 to effectively protect the tray 12. When there is an optical disc 02 in the tray 12, the tray 12 can further drive the optical disc 02 to the desired position.

[0064] In actual application, the movement mode of the tray 12 and the mechanism that drives the tray 12 to move can be any currently common method. This is not limited to the present invention.

[0065] Furthermore, as shown in Figures 13 and 14, the optical disc drive 10 in the example provided herein may further include a support mechanism 13. The support mechanism 13 may include a support plate 131, a first fixed head 132, and a second fixed head 133. The support plate 131 is slidably disposed within the receptacle 110, and the sliding direction of the support plate 131 is perpendicular to the mounting surface 111. The first fixed head 132 is rotatably disposed within the housing 11 and has a first mounting surface 1321. The second fixed head 133 is rotatably disposed within the support plate 131 and has a second mounting surface 1331. The first mounting surface 1321 and the second mounting surface 1331 are positioned opposite each other and are configured to clamp and secure the optical disc 02. The support plate 131 is located on the side of the tray 12, away from the holding surface 121, and the tray 12 has a through hole for the second fixing head 133 to pass through.

[0066] In Figure 13, the support plate 131 is in the position before it moves or rises, and in Figure 14, the support plate 131 is in the position after it moves or rises. In this case, the optical disc 02 is clamped and fixed between the first mounting surface 1321 and the second mounting surface 1331.

[0067] In actual applications, the second fixed head 133 may be fixedly positioned in the housing 11 and rotatable. When the support plate 131 moves toward the second fixed head 133, the first fixed head 132 also moves toward the second fixed head 133 together with the support plate 131. The top of the second fixed head 133 has a convex structure, and the central projection of the top of the first fixed head 132 passes through the central through-hole 021 of the optical disc 02, so that the rotation center of the optical disc 02 can substantially coincide with the rotation center of the first fixed head 132. The first mounting surface 1321 of the first fixed head 132 may come into contact with the surface of the optical disc 02 (e.g., the bottom surface in Figure 14), and as the optical disc 02 is lifted, the optical disc 02 comes off the rigid sheet 14a, and the second mounting surface 1331 of the second fixed head 133 comes into contact with the surface of the optical disc 02 (e.g., the top surface in Figure 14). In other words, the optical disc 02 can be clamped between the first mounting surface 1321 and the second mounting surface 1331, ensuring appropriate gaps between the optical disc 02 and the rigid sheet 14a, and between the optical disc 02 and the rigid sheet 14b.

[0068] Furthermore, in the example provided herein, the laser head 15 is positioned on a support plate 131 and can move together with the support plate 131. As the support plate 131 rises, the laser head 15 passes through the slot 141b of the tray 12 and the rigid sheet 14a, thereby enabling the laser head 15 to read / write the optical disc 02.

[0069] In the example provided herein, the first fixed head 132 is an actively rotating member, and the second fixed head 133 is a driven rotating member. In other words, the optical disc drive 10 further includes a motor for rotationally driving the first fixed head 132. After clamping the optical disc 02 between the first mounting surface 1321 and the second mounting surface 1331, the motor can rotationally drive the first fixed head 132, and under the action of the clamping force, the optical disc 02 and the second fixed head 133 can rotate synchronously with the first fixed head 132.

[0070] As another example, it will be understood that the second fixed head 133 may be an actively rotating member, and the first fixed head 132 may be a driven rotating member. This is not limited to the present invention.

[0071] Of course, in certain configurations, the optical disc drive 10 may further include a motor and drive unit for driving and moving the support plate 131 and the laser head 15. The tray 12, the first fixed head 132, the second fixed head 133, and the laser head 15 can be arranged in a currently common manner, and the corresponding drive unit may also be in a currently common manner. Further details will not be described here.

[0072] In actual applications, the optical disc drive 10 may be used as a standalone device or as part of an electronic device such as a desktop computer or a laptop computer.

[0073] For example, as shown in Figure 15, one embodiment of the present invention further provides an electronic device 20. The electronic device 20 may include a controller 21 and an optical disc drive 10. Specifically, the electronic device is a desktop computer. The desktop computer may include a chassis 22 and components such as a controller 21 and a power supply module 23 located within the chassis 22. The optical disc drive 10 may be mounted within the chassis 22 and connected to components such as the controller 21 and the power supply module 23. The controller 21 may be connected to the optical disc drive 10 using signals and may be configured to control the operating state of the optical disc drive 10. Specifically, the controller 21 may be a central processing unit or a secondary processor within the desktop computer. In some examples, an independent processor may be configured within the optical disc drive 10. This is not limited to the present invention.

[0074] In a particular configuration, the controller 21 may be connected to a motor in the support mechanism 13 using signals and configured to effectively control the position of the tray 12 by controlling the operating state of the motor. Alternatively, the controller 21 may be connected to a corresponding motor in the optical disc drive 10 using signals and effectively control the rotational speed of the optical disc or the position of the laser head. The optical disc drive 10 can be arranged in the chassis 22 in a manner currently common. The control method and arrangement method of the optical disc drive 10 are not limited herein.

[0075] The above description represents only specific embodiments of the Application and is not intended to limit the scope of protection. Any modifications or substitutions that are readily conceivable to a person skilled in the art within the scope of the technical scope disclosed herein shall be included within the scope of protection. Accordingly, the scope of protection shall be subject to the scope of protection set forth in the claims.

Claims

1. An optical disc drive, said optical disc drive is A housing having a receptacle, wherein the mounting surface is provided within the receptacle, A tray located within the receptacle, wherein the tray has a retaining surface, and the retaining surface is positioned on the opposite side from the mounting surface, A rigid sheet disposed on at least one of the mounting surface or the retaining surface, The receptacle includes a support mechanism located within the receptacle, The support mechanism is configured to suspend the optical disc between the mounting surface and the holding surface, and there is a gap between the optical disc and the rigid sheet. Optical disc drive.

2. The optical disc drive according to claim 1, wherein the rigid sheet is a metal sheet.

3. The optical disc drive according to claim 1 or 2, wherein the surface of the rigid sheet facing the optical disc is flat.

4. The optical disc drive according to any one of claims 1 to 3, wherein the gap between the rigid sheet and the optical disc is 0.8 mm or less.

5. The optical disc drive according to any one of claims 1 to 4, wherein the projection of the optical disc onto the rigid sheet is within the contour line of the rigid sheet.

6. The optical disc drive according to any one of claims 1 to 5, wherein the edge of the rigid sheet has a projection.

7. The optical disc drive according to any one of claims 1 to 6, wherein the tray is slidably disposed in the housing and the sliding direction of the tray is parallel to the mounting surface.

8. The aforementioned support mechanism is A support plate slidably disposed within the receptacle, wherein the sliding direction of the support plate is perpendicular to the mounting surface, A first fixed head rotatably disposed in the housing, the first fixed head having a first mounting surface, A second fixing head rotatably positioned on a support plate, the second fixing head having a second mounting surface, The first mounting surface and the second mounting surface are positioned on opposite sides of each other and are configured to clamp and secure the optical disc. The optical disc drive according to any one of claims 1 to 7, wherein the support plate is located on the side of the tray and away from the holding surface, and the tray has a through hole for the passage of the second fixed head.

9. The optical disc drive further includes a first laser head, The optical disc drive according to claim 8, wherein the first laser head is slidably disposed on the support plate, and the tray has a slot for the first laser head to pass through.

10. The optical disc drive further includes a second laser head, The second laser head is positioned on the support plate, and the tray has slots for the second laser head to pass through, or The optical disc drive according to claim 9, wherein the second laser head is disposed in the housing and is positioned opposite to the first laser head.

11. The optical disc drive according to any one of claims 8 to 10, further comprising a motor, the motor being drivably connected to the first fixed head or the second fixed head and configured to rotationally drive the first fixed head or the second fixed head.

12. An electronic device comprising a controller and an optical disc drive according to any one of claims 1 to 11, wherein the controller is communicatively connected to the support mechanism and configured to control the orientation of the support mechanism.

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