JP2005353251A - Hard disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a silent hard disk drive capable of being used in quiet environment. <P>SOLUTION: In this hard disk drive in which a recording disk, a motor for driving the recording disk for rotation and a head for performing read-out/write-in from/to the recording disk and an electronic circuit board are provided in a container, a heat pipe is made to be closely adhered to the container or/and the electronic circuit board and the outer periphery of the metal container to which the heat pipe is closely adhered is covered with an acoustic insulating material. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hard disk drive device for recording calmed data used in a computer or the like.

In recent years, there are an increasing number of electrical appliances using hard disk drive devices. For example, it has come to be used for personal computers and recording / recording equipment.
As shown in FIG. 6, the conventional hard disk drive device rotates one or a plurality of recording disks 3 at a high speed by using a motor 1 that rotates at high speed, and reads data from the disk 3 with a head 5 or transfers data to the disk 3. It has a structure for writing. The motor 1, the disk 3 and the head 5 are housed in a case 7 made of metal, and a base 9 for controlling the hard disk is mounted on the outside of the case 7. Further, a connector 11 for connecting a cable for exchanging signals with an external device and the base 9 and a connector 11 for supplying power to the hard disk drive device are mounted. However, in the structure of the conventional hard disk drive device, there is a problem that a large noise is generated from the motor 1 and the disk 3 that rotate at high speed, which makes the user feel uncomfortable. In order to solve this, there is a structure such as Patent Document 1 in which a hard disk is covered with a sound insulating material. Further, as in Patent Document 2, there is a method in which a fan is attached to a part of the sound insulating material to forcibly cool it.
Japanese National Patent Publication No. 10-500792 Japanese Patent Laid-Open No. 11-66832

However, when the hard disk drive device is covered with a sound insulating material, the heat generated from the hard disk drive device generating high heat cannot be efficiently released to the outside, and the hard disk drive device exceeds the use limit temperature, and the hard disk drive device There was a problem that the drive device would be destroyed. In addition, when a fan is attached to a part of the sound insulating material to forcibly cool it, the fan not only becomes a new noise source, but also the air intake in the sound insulating material and the fan from the hard disk drive device. The problem of noise leaking arises.
In view of the problems of the conventional hard disk drive device, it is an object of the present invention to provide a silent hard disk drive device that can be used in a quiet environment.

According to the first aspect of the present invention, in a hard disk drive comprising a recording disk, a motor for rotationally driving the recording disk, a head for reading and writing from the recording disk, and an electronic circuit board in a container, A heat pipe was brought into close contact with the container and / or the electronic circuit board, and the outer periphery of the metal container with which the heat pipe was in close contact was covered with a soundproofing material. The input / output signal with respect to the internal electronic device and the power connector portion may not be covered with brain sound material, or a separate extension cable in which the cable portion is covered with soundproof material may be used. Further, when a plurality of soft soundproof materials are combined, the cable can be taken out from the hard disk drive from the joint portion of the soundproof materials.
According to invention of Claim 2, the said heat pipe is made to protrude the outer side of the hard-disk drive apparatus covered with the soundproof material.
According to the invention of claim 3, an aluminum flat pore heat pipe is used as the heat pipe.
According to the invention of claim 4, rubber is used as the soundproofing material. Moreover, as a soundproof material other than rubber, glass wool, foam (urethane, polyethylene, etc.), plywood, wood, gypsum board, etc. can be used.
According to the invention of claim 5, the periphery of the soundproofing material is covered with a metal having good thermal conductivity, and the metal and the protruding heat pipe are brought into close contact with each other. Examples of the metal having good thermal conductivity include pure aluminum, pure copper, and alloys thereof.
According to the invention of claim 6, fins are attached to the heat pipe and / or the metal having good thermal conductivity. There are corrugated fins and Kenzan fins.
According to the seventh aspect of the present invention, the heat pipe protruding in the previous period is brought into close contact with the casing housing the hard disk drive device.

According to the invention of claim 1, in a hard disk drive provided with a recording disk, a motor, a read / write head and an electronic circuit board in a metal container, a heat pipe is brought into close contact with the metal container or / and the electronic circuit board, By covering the outer periphery of the metal container, to which the heat pipe is closely attached, with a soundproofing material, it is possible to prevent the sound generated from the hard disk drive from leaking to the outside, and the heat trapped in the hard disk drive device is removed from the heat pipe. It can be diffused into the metal container so that the hard disk drive device is not destroyed due to partial high temperature.
According to the second aspect of the present invention, the heat pipe is protruded outside the hard disk drive device covered with the soundproofing material, so that the heat accumulated in the hard disk drive device is transferred to the outside of the hard disk drive device. Can be released.
According to the invention of claim 3, by using an aluminum flat pore heat pipe as the heat pipe, heat can be radiated well regardless of the posture of the hard disk.
According to the invention of claim 4, by using rubber as the soundproofing material, it is possible to suppress the noise transmitted to the case by the vibration of the hard disk drive as well as the soundproofing effect.
According to the fifth aspect of the present invention, the soundproofing material is efficiently accumulated in the hard disk drive device by covering the periphery of the soundproofing material with a metal having good thermal conductivity and bringing the metal and the protruding heat pipe into close contact. It can be released to the outside by propagating the existing heat to the metal.
According to the invention of claim 6, the heat accumulated in the hard disk drive device can be efficiently released to the outside by attaching the fin to the heat pipe and / or the metal having good thermal conductivity. .
According to the invention of claim 7, the heat pipe projecting in the previous period is brought into close contact with the housing housing the hard disk drive device, whereby the housing can be used as a heat radiating member, and the hard disk can be efficiently The heat accumulated in the drive device can be released to the outside.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a first embodiment of the silent hard disk drive apparatus of the present invention. In the present embodiment, a 2.5-inch hard disk drive out of 2.5-inch hard disk drives and 3.5-inch hard disk drives generally standardized in the market is shown. Reference numeral 101 denotes a mounting bracket for mounting the silent hard disk drive device to a personal computer or an image recording device. Both ends of the mounting bracket 101 are bent, and the rubber container member 131 is disposed with the bent portion as a wall. Next, the rubber bottom member 103 is disposed so that the bottom and top surfaces of the 2.5-inch hard disk drive are in close contact with each rubber member. Further, a side rubber member having a recording disk, a motor, a read / write head, and an electronic circuit board on the rubber bottom member 103 is provided in a metal container so that the side surface of the main part 109 of the 2.5-inch hard disk drive is in close contact with the rubber member. 105 is arranged. A main part 109 of the hard disk drive is mounted in a recess formed by the rubber bottom member 103 and the side rubber member 105. After the hard disk drive main part 109 is mounted, it is covered with a rubber top member 107, and the hard disk drive main part is completely covered with rubber so that the sound generated from the internal motor and disk can be cut off.

  Bonding between the rubber members is performed with an adhesive, and bonding between the mounting bracket 101 and the rubber member is performed with the nut 111 and the mounting bracket embedded in the rubber when the hard disk drive device is mounted on a personal computer or an image recording device. The bolt hole 113 of 101 is aligned, and the nut 111 is fixed by attaching the bolt 115. A long heat pipe 121 is disposed in close contact with the hard disk drive main part 109 between the rubber top member 107 and the hard disk drive main part 109. The long heat pipe 121 uses a heat conductive sheet having high adhesion even if the metal container of the main part 109 of the hard disk drive has some depression. Also, silicon grease can be used if the gap can be filled. The other end of the long heat pipe 121 protrudes outside the rubber member. On the opposite side of the hard disk drive main portion 109 of the rubber top member 107, a lid 123 made of a material having good thermal conductivity such as a copper plate is fixed by a bolt 125 and a nut 127 embedded in the rubber top member 107. A long heat pipe 121 protruding outside the rubber member is in close contact with the lid 123. As a result, the heat accumulated in the rubber member is transferred to the outside by the heat pipe 121 and propagated to the lid 123 to dissipate heat, thereby preventing the hard disk drive device from being destroyed by heat. Also, since the signal and power cables are made of soft rubber, the soft rubber member is deformed according to the shape of the cable and is in close contact with the cable even if it is connected from any contact portion between the soundproof rubber members. Therefore, the soundproofing effect hardly changes.

  In this embodiment, in order to provide soundproofing for a 2.5 inch hard disk drive standardized in the market, the soundproofing members 103 and 107 are added to the 3.5 inch hard disk drive standardized in the market. It can also be used for 5-inch hard disk drives. That is, the cost can be reduced by sharing the main parts for the 2.5-inch hard disk drive and the 3.5-inch hard disk drive.

  In this embodiment, a 2.5-inch hard disk drive and a 3.5-inch hard disk drive device that are common parts are shown. However, even if a soundproof member dedicated to a 2.5-inch hard disk is manufactured, the metal container of the hard disk drive itself is soundproofed. You may manufacture with a member.

FIG. 2 shows a second embodiment of the present invention.
201 is a hard disk drive device covered with a soundproof member, and 203 is a heat pipe for propagating heat from the inside of the soundproof member. Fins 205 are in close contact with the heat pipe, and the heat dissipation efficiency is improved.

FIG. 3 shows a third embodiment of the present invention.
Reference numeral 301 denotes a hard disk drive device covered with a soundproofing member, and reference numeral 307 denotes a heat pipe for transmitting heat from the inside of the soundproofing member to the outside. The heat pipe 307 is in close contact with the electric / electronic device casing 305 housing the hard disk drive device with another heat pipe 303 via a heat conductive sheet or silicon grease. The heat dissipation efficiency is increased by conducting the heat of the hard disk drive device.

4 and 5 show an embodiment of the heat pipe.
The fine hole tunnel plate type heat pipe according to this embodiment is constituted by a meandering fine hole tunnel plate type heat pipe or a parallel fine hole tunnel plate type heat pipe as shown in FIGS. The meandering pore tunnel plate heat pipe or the parallel pore tunnel plate heat pipe uses a porous flat tube of light metal such as aluminum or magnesium. The porous flat tube 51 (61) has a flat outer shape as a whole, and a large number of through-holes 57a and 57b (68a and 68b) arranged in parallel are formed by extrusion molding. The partition wall on the end face of the through-hole is cut by a predetermined depth, and the opposite end face is also cut. The pores communicate with each other at the end portion to form a heat medium passage, which becomes a meandering tunnel or a parallel pore tunnel, in which a working fluid is sealed.

Here, the meandering capillary heat pipe is a heat pipe having the following characteristics (refer to Japanese Patent Laid-Open No. 4-190090).
(1) Both ends of the thin tube (heat medium passage) are connected to each other so as to be freely circulated and sealed.
(2) The part with the thin tube is the heat receiving part, and the other part is the heat radiating part.
(3) The heat receiving portions and the heat radiating portions are alternately arranged, and the thin tubes meander between the two portions.
(4) A two-phase condensable working fluid is sealed in the narrow tube.
(5) The inner wall of the narrow tube has a diameter equal to or smaller than the maximum fluid diameter that allows the working fluid to circulate or move while the inside of the tube is always closed.
By using such a thin tube heat pipe, heat can be transported regardless of the attachment posture of the thin tube heat pipe to the heating element.

  By using the heat pipe, it is possible to configure a hard disk drive device that is hardly affected by the heat dissipation efficiency in the attitude of the hard disk drive device.

It is an assembly drawing of the first embodiment of the present invention. It is 2nd Example of this invention. It is an assembly drawing of the third embodiment of the present invention. This is a meandering capillary heat pipe used in the present invention. This is a parallel thin tube heat pipe used in the present invention. This is a conventional hard disk drive device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Mounting bracket 103 Rubber bottom member 105 Side rubber member 107 Rubber top member 109 Hard disk drive main part 111, 127 Nut 113 Bolt hole 115, 125 Bolt 121, 203, 303 Long heat pipe 123 Lid 131 Soundproof member 201, 301 Hard disk drive device 305 Case

Claims (7)

  In a hard disk drive having a recording disk, a motor for rotationally driving the recording disk, a head for reading and writing from the recording disk, and an electronic circuit board in the container, heat is applied to the container and / or the electronic circuit board. A hard disk drive device characterized in that a pipe is brought into close contact, and an outer periphery of the metal container to which the heat pipe is attached is covered with a soundproofing material.   2. The hard disk drive device according to claim 1, wherein the heat pipe protrudes outside the hard disk drive device covered with a soundproofing material.   The hard disk drive device according to claim 1, wherein an aluminum flat pore heat pipe is used as the heat pipe.   The hard disk drive device according to claim 1, wherein rubber is used as the soundproofing material.   5. The hard disk drive device according to claim 1, wherein the soundproofing material is covered with a metal having good thermal conductivity, and the metal and the projecting heat pipe are in close contact with each other.   The hard disk drive device according to claim 1, wherein fins are attached to the heat pipe and / or the metal having good thermal conductivity.   A hard disk drive device characterized in that a heat pipe protruding in the previous period is brought into close contact with a housing housing the hard disk drive device.

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