TWI239513B - Tray type optical disk drive - Google Patents

Abstract

The rotation speed of current optical disk drive can be as high as 10000 rpm, so that a strong airflow is generated around the optic disk. This strong airflow may induce disk tray vibration and disk waver, and thus influence the disk pickup. A tray type optical disk drive consists of an optical disk drive main frame and a tray. The tray is installed on the optical disk drive by way of passing in and out the optical disk drive. The tray has sidewalls and there are through holes on the sidewalls. This tray can reduce noise induced by the high rotation speed without additional fabrication cost.

Description

1239513 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to an optical disc drive, a tray type optical disc drive with reduced noise. In particular, there is a kind of "previous technology". In today's explosion of M News, most customers are released in the form of consumer touch. In recent years, consumer light = = contains an optical disc drive, which shows that the optical disc drive passes through the optical disc drive system. The optical access head accesses the optical disc carried by the tray into the machine and rotated in the optical disc drive. Today's higher-end optical fruit machines generally have the ability to drive optical discs to rotate at speeds in excess of 10,000 rpm. Due to the high-speed rotation of the disc, a strong air current will be induced near the rotating t. ^ And this strong airflow will easily cause the tray of the disc to be shaken and shake the disc ', resulting in unstable wind cutting. This wind: It will cause the vibration of the optical disc, the noise generated when the optical disc rotates at a high speed, and it will make it difficult for the optical access head to access the optical disc. ^ ^ ^ 114 Please refer to Figure 1, which shows the factory and intention of a traditional tray-type optical disc drive. The tray-type optical disc drive 100 includes a base 102, a lower cover, an upper two 106, a panel 108, a door panel 110, a tray body 112, and a sound absorbing element box 102. The door panel 110 is coupled to the tray body 112 to be assembled into a tray. The meaning of <, the lower cover 104, the upper cover 106 and the panel 108 are coupled through: Common Page 5 TW1458F (广 明) .ptd 1239513 V. Description of the invention (2) f ί f Disc player body. The tray is in a way that can enter and exit the optical disc drive body. The tray is used to carry the optical disc 1 1 6 and load the optical disc into the optical disc drive body for access by the optical disc drive body. As shown in the figure, 'In order to reduce the noise caused by the high-speed II of the optical disc, the noise generated by the tray-type optical disc drive 100 is equipped with sound absorption on the optical disc drive 彳 Γ104. The component 114 is used to reduce the noise of the conventional tray type optical disc drive 100. &#, and σ, the conventional tray-type optical disc drive 100 uses a polymer material 114. The polymer foam material can be rubber foam material or PU foam material. The second component is: Fang Chuan: The t-tray disc drive 100 must reduce the sound of the tray-type disc drive 100 due to the high-speed rotation of the light = 6 by attaching a sound-absorbing cymbal ^. Therefore, it will be Increase the physical level of the sound absorbing element m. The assembly cost and structure of the sound-absorbing member 114 are complicated. [Summary of the Invention] The machine for producing the disc of the disc optical disc includes the wall of the machine body and the first aspect. In view of this, the purpose of the present invention is to provide a method for making a tray According to the above-mentioned object, the present invention proposes a tray optical disc drive body and a tray. The tray is installed on the optical disc drive body in a disc-accessible manner. Tray includes _first side Page 6 T11458F (广 明) .ptd 1239513 — V. Description of the invention (3) :: Wall. The first-side wall is arranged on one of the trays; there is at least a first-through hole. The second side wall is disposed on the second side wall system J-side system opposite to the first side, and the second side wall is opposite to the first through hole. In the tray optical disc drive of the present invention, there is at least one side wall of the tray-type optical disk player of the present invention. The knife is located on the side wall near the front part of the tray. In addition, the tray can also be provided with the first through hole and the second through hole, which are respectively positioned at the middle and the second side wall. Furthermore, the tray may also have two f's: the side wall hole and the second through hole 'are respectively located on the f side wall of the first side f near the rear portion. 4 1 Wen Nai's brother, one side wall and the second In order to make the above purpose of the present invention, the following special enumerations are better, and people _ advantages month b is more obvious and easy to understand, next. In the early season, only good examples are given, and the detailed description is given in conjunction with the attached drawings. [Embodiment] Application 2 = A detailed description is made with a preferred embodiment. However, this embodiment does not limit the scope of the invention to be protected. The embodiment is only a kind of tray-type optical disc in the spirit of the invention. machine. The following 1 first describes the technical features of the present invention in detail. According to FIG. 2, the red line is shown as a schematic diagram of a disc player according to a preferred embodiment of the present invention. The tray-type optical disc drive 200 includes a base body 212, a lower cover 204, an upper cover 206, a panel 208, a door panel 210, and a tray T ^ 1458F (Guangming) .ptd Page 7 1239513

The door panel 210 is coupled to the tray body 212, and the lower cover 204, the upper cover 206, and the panel m are combined with the base disc drive body. The tray is used to carry the optical disc d in the same group f on the optical disc drive m to carry the light ^ sigh, load the optical disc into the optical disc drive body, and think of the light "ΞΙΐ ;; 202, to put in and out) to take. The tray body 212 of the 220 and 224 trays includes a first side wall 218 and a second side wall. The first side wall 218 is disposed on the first side of the tray body 212. The first side wall 218 has first through holes 22 通 and 226b. In addition, the second side wall 220 is disposed on the second side of the tray body 212 and the second side 224 of the tray body 212 is opposite to the side 222 of the tray body 212. In addition, the second side wall 220 has second through holes that are respectively opposite to the first through holes 226a and 226b (not shown in the drawings due to the relationship of the perspective of the figure). δ refers to FIG. 3A and FIG. 3B, which are schematic diagrams of the tray body 212 in FIG. In order to make the explanation clear, the tray body 2 1 2 in FIG. 2 is drawn out of the tray optical disc drive 2000 for detailed explanation. The tray body 21 2 of the tray can be roughly divided into the front portion 228, where the disc can be carried out of the drive body and positioned at the loaded position. 'Each point on the tray body 21 2 is far from the drive body.' , Middle part 2 30 and rear part 232. As shown in FIG. 3A and FIG. 3B, the first through hole 226 a on the first side wall 218 of the tray body 212 and the second through hole 220 on the tray body 212 opposite to the first through hole 226 a The second through holes 234a are located near the front portion 228 of the tray body 212. And the second through hole 234a is shaped

1239513 V. Description of the invention (5) The shape and size are substantially the same as the first through hole 226a. Similarly, the first through hole 226b 'on the first side wall 21 18 of the tray body 2 1 2 and the second through hole on the first side wall 2 2 0 of the tray body 212 opposite to the first through hole 226b. 2 3 4 b are located near the rear portion 232 of the tray body 212. The second through hole 234b is substantially the same in shape and size as the first through hole 226b. 'Please refer to FIG. 3B, which shows that the tray body 21 2 of FIG. 3A may have a third through hole 234c near the middle portion 230 of the sin. The tray body 2 丨 2 shown in FIG. 3B is seen from another perspective, and the tray body 2 1 2 seen from this perspective can be seen not seen in FIG. 3A. The second side wall 220 of the obtained tray body 212. Compared with the tray body shown in FIG. 3A, the tray body in FIG. 3B is on the second side wall 220, and has a third through hole 234c near the middle portion 23o. The second through hole 2 34c need not be opposed to the first through hole 226a or "butter." Refer to Figure 4A and Figure 4B for the same reference. Figure 4A shows the base 202 provided with the tray body 212. Fig. 4B is a cross-sectional view of the -4B cross section of Fig. 4A. The 4B-4β cross-section in Fig. 4A is the first cut of the first side wall 218 located near the square part 232 behind the tray body 212. The through-hole 22 6b and the second through-hole 23 of the second side wall 22 are raised (as shown in FIG. 3A and FIG. 3B). The first through-hole 226b provided in the first side wall 218 and The second through hole "2" at ^ 220 and opposite to the first through hole 226b is changed to explain the principle of noise reduction of the Guiming tray optical disc drive.

1239513 V. Description of the invention (6) As shown in Figure 4B, the strong gas flow caused by the high-speed rotation of the optical disc, the direction of gas flow is shown in the arrow direction in the figure. That is, the gas having a pressure difference at each position in the gas flow field flows upward from the bottom of the tray body 21 2 to the bottom of the tray body 2 1 2. Then, the upwardly flowing gas is transferred into the first through hole 226b and the second through hole 234b. Then, the gas flowing out of the first through-hole 226b and the second through-hole 234b is blocked by the base 202, so it will flow upward along the base 202. Please refer to Figure 5A and Figure 5B at the same time. Figure 5A shows a schematic diagram of a resistive muffler 'Figure 5B shows a diagram of a resistive muffler. The arrow directions shown in Figs. 5A and 5B represent the directions in which the gas flows in the resistive muffler 502 and the resistive muffler 504, respectively. 4. Contrast to FIG. 4B, the partial enlarged pattern of the gas flowing near the first through hole 226b. There is a first gap 236 between the base 202 and the first side 222 of the tray body 212. A second gap 238 is formed between the base 202 and the second side 224 of the tray body 212. ‘

When the disc is rotated, the generated airflow can flow from the edge of the disc to the first side 222 and the second side 224 of the body 212. Then, the airflow passes through a through hole 226b and the second through hole 234b, and then flows through the first gap 23 and the second gap 238. The above situation belongs to the case where the cold body shown in Figs. 5 and 8 flows in the resistive muffler 502. /; IL resistive muffler Gong 502, has a bend, the gas passes through this bend = :: There is a loss of throbbing energy, so it has the function of reducing sound energy and e 'resistive energy absorber The acoustic energy of gas that can be reduced by 502 is the TO458F (Guangming) .ptd 1239513

It is proportional to the bending angle of the bend of the resistive energy absorber 5 〇 2. In addition, please refer to FIG. 5B, and please refer to the enlarged view of the partial flow in the vicinity of the first through hole 2 2 6b in the figure. When the gas flows out of the first through hole 226b from the first through hole 226b, it belongs to the case where the fluid shown in FIG. 5B flows in the resistant muffler 504. Compared with the resistive silencer 5 〇2 in Figure 5A, the resistant silencer 504 uses the change in the cross-sectional area of the flow channel of the resistive / Xiao sounder 504 to form an acoustic impedance during sound transmission. Mismatch, the sound energy is fed back to the direction of the sound source, and then the sound energy is reduced. Therefore, it can be known from the foregoing embodiments that the tray-type optical disc drive 200 of the present invention has first through holes 226a and 226b in the first side wall 218 and the second side wall 220 'of the tray body 212, respectively, and The first through hole 2 2 6a] 22 6b is opposite to the second through hole 234a, 234b and the third through hole 234c, so it can have both the above-mentioned resistive energy dissipator 502 and the resistant energy dissipator 5 The effect of 0 4 to reduce sound energy. In the above-mentioned embodiment of the present invention, the first through holes and the second through holes on the first = wall 218 and the second side wall 220 of the tray body 2 丨 2 are not limited, and only one or two Or three, any number of first through holes and second through holes are within the technical scope of the present invention. Furthermore, the shape and size of the first through-hole and the second through-hole opposite to the first through-hole provided in the first side wall 218, regardless of whether it is related to the second through-hole provided in the second side wall 22 or not. Whether they are substantially the same is also the technical scope of the present invention. However, the tray of the present invention has achieved the purpose of reducing sound energy by using the principle of sound energy reduction of the resistive energy absorber 502 and the resistance energy absorber 504 at the same time.

Page 11 1239513 Fifth, the invention of the invention (8) The optical disc drive 300 'also has no need to increase any manufacturing costs. In summary, although the present invention is used to limit the present invention, it can be protected within any spirit and scope. Fan Yuan deems that the attached declaration has used the examples to reveal that if the person is familiar with this skill, he will make various changes and retouches. Please define the advantages of the patent scope. In the above, however, it does not depart from the present invention, so the present invention prevails. 1239513 Brief description of the drawings [Simplified description of the drawings] Figure 1 is a schematic diagram of a conventional tray-type optical disc drive. Fig. 2 is a schematic diagram of a tray-type optical disc drive according to a preferred embodiment of the present invention. FIG. 3A is a schematic diagram of the tray body 2 12 in FIG. 2. Fig. 3B is a schematic view showing that the tray body 212 of Fig. 3A can further have a first through hole and a second through hole 234c in the middle portion 230. FIG. 4A is a plan view of the base 200 provided with the tray body 212. FIG. 4B is a cross-sectional view of the 4B-4B section of FIG. 4A. FIG. 5A is a schematic view of a resistive muffler. Figure 5B shows a schematic diagram of a resistant muffler. Description of legends: 100 102 104 106 108 110 112 114 116 218 200202 204 206 208 210212

TW1458F (广 明) .ptd 1239513 Brief description of the diagram 220 Second side wall 222 First side 224 Second side 226a, 226b: First through hole 228: Front part 230: Middle part 232: Rear part 234a, 234b: Second pass Hole 234c: Third through hole 236: First gap 238: Second gap 502: Resistive silencer 504: Resistive silencer

TW1458F (广 明) .ptd Page 14

Claims (1)

1239513 VI. Scope of patent application 1. A tray-type optical disc drive including an optical disc drive body; and a tray provided on the optical disc drive body in a manner capable of entering and leaving the optical disc drive body, the tray having a side wall and the side wall There is a through hole. A tray-type optical disc drive includes: an optical disc drive body; and a tray, which is arranged on the main body of the optical disc drive in such a manner as to be able to enter and exit the optical disc drive body. The tray includes : 'Μ light a first side wall is disposed on a first side of the tray, the side wall has at least a first through hole; and a second side wall is disposed on a second side of the tray, the side Opposite the first side, the second side wall has at least one second through hole opposite to the one hole. Λ One pass 3. The tray-type optical disc drive described in item 2 of the patent application scope, Longzhong, which The tray further has a front portion, and the first through hole and the second through hole are respectively located on the first side wall and the second side wall near the front portion: 4. As described in item 2 of the patent application park Tray drive, The tray further has a middle portion, and the first through hole and the second through hole are respectively located on the first side wall and the second side wall near the middle portion. 6. In the scope of the application for patent, the application should be: "It's Special and Prosperous-The tray optical disc drive described in Fanyuan Item 2 is located close to 5 :: 二弟-通 孔 and this second through hole. Xi Zhiyuan is on the first side wall and the second side wall. In Λ Di, please refer to the disc-type optical tablet machine described in Item 2 of the Patent Fanyuan: there is a third side wall that does not correspond to the first through hole: 1 · a type of tray-type optical disc player that can reduce noise, The package includes two main bodies of the optical disc drive, which has a base; and a tray for carrying an optical disc, which can be placed in a bodyable manner: placed on the main body of the optical disc drive, and the tray packs. The first side wall of the optical disc drive is arranged on one of the trays. The first side wall is provided with i less than a first through hole. The base and the first first gap are between the base and the side. A second A side wall is disposed on a second side of the tray opposite to the first side, the second side wall has at least a second through hole opposite to the second hole, between the base and the second side Two = —one clearance; when the disc is rotated, the generated airflow can flow from the current edge to the first side and the second side, and then pass through the ~~ ^^ and = ^ ~ 2 through holes, and The turning flows through the first gap and the second gap. / 、 The first