WO2017208825A1

WO2017208825A1 - Hard disk drive unit and electronic device

Info

Publication number: WO2017208825A1
Application number: PCT/JP2017/018545
Authority: WO
Inventors: 中島　雄二
Original assignee: 株式会社東芝; 東芝インフラシステムズ株式会社
Priority date: 2016-05-31
Filing date: 2017-05-17
Publication date: 2017-12-07
Also published as: JP6585005B2; JP2017216026A; CN107851450B; KR20180009346A; SG11201801929UA; CN107851450A; KR102051877B1; TW201804683A; TWI655810B

Abstract

Provided are a hard disk drive (HDD) unit and electronic device that have high maintainability. In one embodiment of the present invention, the HDD unit includes an HDD case and an HDD holder. The HDD case is provided with an HDD tray and an HDD cover. The HDD tray is configured such that an HDD can be placed thereon. The HDD cover is disposed on the HDD placed on the HDD tray and can be switched between a closed state where the HDD is restricted and an open state where the top of the HDD tray is open. The HDD cover has an energizing part that elastically contacts the top of the HDD in the closed state. The HDD holder can house the HDD case and supports the HDD case such that the HDD case is capable of reciprocal movement along a prescribed first direction.

Description

HDD unit and electronic device

Embodiments relate to an HDD unit and an electronic device.

For example, in an electronic device, an HDD unit is provided in a housing. The HDD unit includes an HDD (Hard Disk Drive), an HDD tray that holds the HDD, and an HDD holder that accommodates the HDD tray so that the HDD tray can be pulled out. For example, the HDD unit is arranged on the back side of the front part of the casing, and is configured such that the HDD can be pulled out from a slot opening formed in the front part of the casing. For example, the HDD is fixed to the HDD tray by screwing at a plurality of locations.

JP 2014-116052 A

FIG. 1 is a perspective view illustrating a configuration of a part of the electronic apparatus according to the first embodiment. FIG. 2 is a perspective view showing the configuration of the HDD unit according to the embodiment. FIG. 3 is a perspective view showing the configuration of a part of the HDD unit of the HDD unit in the first state. FIG. 4 is a perspective view showing a configuration of a part of the HDD unit in a second state. FIG. 5 is a perspective view of the HDD tray of the HDD unit. FIG. 6 is a perspective view of the HDD tray. FIG. 7 is a perspective view of the HDD tray. FIG. 8 is an explanatory diagram at the time of replacement of the HDD unit according to the embodiment. FIG. 9 is an explanatory diagram when replacing the HDD unit according to the embodiment. FIG. 10 is a perspective view showing a configuration of an HDD tray according to another embodiment.

Embodiment

The HDD unit according to the embodiment includes an HDD case and an HDD holder. The HDD case includes an HDD tray and an HDD cover. The HDD tray is configured such that an HDD can be placed thereon. The HDD cover is arranged on the HDD placed on the HDD tray, and is configured to be switchable between a closed state that suppresses the HDD and an open state that opens the HDD tray. An urging portion that elastically contacts the HDD is provided. The HDD holder is configured to accommodate the HDD case, and supports the HDD case so as to reciprocate along a predetermined first direction.

[First Embodiment]
Hereinafter, configurations of the electronic apparatus 10 and the HDD unit 12 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view showing a configuration of a part of the electronic apparatus 10 according to the present embodiment, and FIG. 2 is a perspective view showing a configuration of the HDD unit 12. 3 and 4 are perspective views showing a first state and a second state of a part of the HDD unit 12, and FIGS. 5 to 7 are perspective views of the HDD tray 24. 8 and 9 are explanatory diagrams of maintenance work for the HDD unit 12. In FIG. 3, the HDD cover 25 is omitted.

In the figure, arrows X, Y, and Z indicate three directions orthogonal to each other, where X is a first direction that is the front-rear direction, Y is a second direction that is the width direction, and Z is a third direction that is the vertical direction. Each is along. In addition, in this embodiment, about directions, such as up and down, right and left, front and back, an example of the direction when the bottom plate of the housing 11 is arranged downward as shown in FIG. 1 is shown. It changes appropriately according to the posture.

As shown in FIGS. 1 and 2, the electronic device 10 includes a housing 11 and an HDD unit 12 provided in the housing 11.
The housing 11 includes, for example, a rectangular top plate 11a, a bottom plate 11b disposed opposite to the top plate 11a, a front plate 11c erected upward from the front edge of the bottom plate, and both side edges of the bottom plate. A pair of side plates 11d erected upward and a rear plate erected upward from the rear end of the bottom plate 11b are provided. The housing 11 forms a rectangular parallelepiped accommodation space surrounded by the top plate 11a, the bottom plate 11b, the front plate 11c, the rear plate, and the pair of side plates 11d.

The housing 11 is provided with a plurality of HDD units 12 at the front end in the accommodation space and on the back side of the front plate 11c. The housing 11 accommodates various electronic components such as an optical drive unit, a cooling device, and a board unit, in addition to a backboard 14 erected on the back surface of each HDD unit 12.

The front plate 11c of the housing 11 is formed with a plurality of slot openings 11f communicating with slots 40a of the HDD holder 23 described later.

Each HDD unit 12 includes, for example, a plurality of HDDs 21, a plurality of HDD cases 22 that respectively hold the HDDs 21, and an HDD holder 23 that accommodates the plurality of HDD cases 22 so that they can be pulled out. In the present embodiment, the HDD unit 12 is exemplified by a two-stage HDD unit 12 in which the HDD cases 22 are arranged in two upper and lower stages.

The HDD 21 is configured in a rectangular block shape having a predetermined thickness, for example, and incorporates a plurality of magnetic disks for storing data.

The HDD case 22 is made of, for example, a metal material, and includes an HDD tray 24 on which the HDD 21 is placed and an HDD cover 25.

The HDD tray 24 includes a rectangular bottom frame 31, a pair of side frames 32, and a front frame 33, and has an upper surface and a rear opening. The HDD tray 24 is supported by the HDD holder 23 so as to be slidable along the first direction. The HDD tray 24 is configured such that the HDD 21 can be placed thereon.

The bottom frame 31 is configured in a rectangular plate shape, for example. The HDD 21 is placed on the upper surface of the bottom frame 31. A circular hole 31 a is formed in a front portion of the bottom frame 31. The hole 31a is an opening that allows a finger to be inserted during operation.

As shown in FIG. 6, a restriction projection 31 b that protrudes upward is integrally provided as a restriction portion at a predetermined position of the front end portion of the bottom frame 31 and adjacent to the front of the placement portion of the HDD 21. ing. The restricting protrusion 31b is a rib-shaped member obtained by cutting a part of the bottom frame 31 into a U shape and bending it upward. The restricting protrusion 31 b abuts the front surface of the HDD 21 to restrict the positional deviation of the HDD 21 toward the front.

The front frame 33 is a plate-like member that stands on the front edge of the bottom frame 31 and closes the front of the bottom frame 31. One end of the front frame 33 is provided with a fastening member 34 that fastens the front frame 33 to the housing 11 when the front frame 33 is closed.

The pair of side frames 32 are wall members extending upward from both side portions of the bottom frame 31. The side frame 32 includes, for example, a rail protrusion 32a that protrudes inwardly at the upper end edge thereof. The rail protrusion 32a has a stepped portion 32b at a predetermined position, with the rear portion positioned above the front portion. That is, the rail protrusion 32a is provided on one and the other of the stepped portions 32b, and the rear rail protrusion 32a is located above the front rail protrusion 32a. The step portion 32 b serves as a stopper that regulates the relative positional relationship with the link rail 43 by contacting the lower rail protrusion 43 a in front of the link rail 43.

The pair of side frames 32 are slidably engaged with the pair of link rails 43 of the HDD holder 23, respectively. That is, the side frame 32 is disposed in the second guide slit 43 c on the inner surface of the link rail 43, so that the rear end portion of the HDD tray 24 is slidably engaged with the front end portion of the HDD holder 23.

A spring plate 35 is provided on the inner surface of the side frame 32. The spring plate 35 has, for example, an elongated plate shape, and includes leaf spring portions 35a serving as biasing portions at both ends thereof. The leaf spring 35a is bent so that the end of the spring plate 35 protrudes inward of the slot 40a of the HDD holder 23, and is configured to be elastically deformable. The leaf spring portion 35 a is located inward of the inner surface of the side frame 32 and abuts against the side surface of the HDD 21 placed on the bottom frame 31 and elastically biases it, thereby grounding the GND and the HDD 21. It performs the positioning function in the second direction.

A shaft hole 32c that rotatably supports a shaft body 36 that rotatably supports the HDD cover 25 is formed at the front end portions of the pair of side frames 32, respectively. A shaft body 36 is inserted into the shaft hole 32c. The shaft body 36 is supported on the front end portion of the side frame 32 by a support member 32f such as an E ring.

As shown in FIGS. 6 and 7, the rear end portion of the pair of side frames 32 is provided with a regulating wall 32 d as a regulating portion, a part of which is bent inward in the width direction. The restriction wall 32d is arranged at a position adjacent to the rear of the mounting portion of the HDD 21, and forms a plane perpendicular to the insertion direction, for example, at the end in the width direction, and contacts the rear end of the HDD 21 to the rear of the HDD 21. Regulate the movement of

The HDD cover 25 is a metal plate member, for example, and is provided between the side frames 32 at the upper end of the front frame 33 so as to be rotatable about the shaft body 36. The HDD cover 25 is arranged on the HDD 21 and can be switched between a closed state that suppresses the HDD 21 and an open state that opens the HDD tray 24. The HDD cover 25 includes projecting portions 25a that are configured to have a large distance from the rotation shaft at both ends in the width direction, and the center portion is configured to have a small distance from the rotation shaft.

The HDD cover 25 has a pressing piece 25b at the tip of the protruding portion 25a. The pressing piece 25b is configured to be bent obliquely toward the front in the rotational direction in which the HDD cover 25 is in the closed state, that is, toward the HDD 21. In the closed state, the pressing piece 25b extends obliquely inward and downward in the insertion direction and is pressed against the upper surface of the HDD 21.

The HDD cover 25 includes a first leaf spring portion 25c and a second leaf spring portion 25d on the protruding portion 25a.

The first leaf spring portion 25c is configured by bending upward a spring piece in which a predetermined region of the protruding portion 25a of the HDD cover 25 is cut into a U shape. The first leaf spring portion 25c is, for example, a cantilever structure in which the rear side in the sliding direction is the base end and the front side in the sliding direction is the free end, and is inclined obliquely so that the tip end portion is located upward. . A spring convex portion 25e that protrudes upward is formed at the tip of the first leaf spring portion 25c.

The second leaf spring portion 25d is configured by bending downward a spring piece in which a predetermined region of the base end portion of the protruding portion 25a of the HDD cover 25 is cut into a U shape. The second leaf spring portion 25d has, for example, a cantilever structure in which the center side in the width direction is a base end and the outer side in the width direction is a free end, and the tip is inclined obliquely so that the tip is positioned downward. A spring convex portion 25e that protrudes downward is formed at the tip of the second leaf spring portion 25d.

The HDD cover 25 is configured to be rotatable between a closed position shown in FIG. 2 and an open position shown in FIG. In the thickness direction of the HDD cover 25, the dimension defined by the tip position of the spring convex portion 25e of the first leaf spring portion 25c and the tip position of the spring convex portion 25e of the second leaf spring portion 25d is It is configured to be slightly larger than the height dimension between the upper surface and the ceiling surface of the slot 40a. That is, in the closed state, the upper surface of the HDD 21 is pressed relatively downward by the second leaf spring portion 25d and the pressing piece 25b by the HDD cover 25 disposed between the ceiling surface of the slot 40a and the upper surface of the HDD 21. Configured to dimensions.

The HDD holder 23 includes a housing 41 that forms an outer shell, two support frames 42 on which the HDD tray 24 is placed, and a link rail 43 that supports the HDD tray 24 to be slidable on the support frame 42.

The HDD holder 23 is configured by a housing 41 and a two-stage support frame 42 in a cylindrical shape having a rectangular cross section surrounding the upper and lower sides and both side portions. The HDD holder 23 is provided with two stages of slots 40a in the height direction, which are opened in the front and rear directions by a housing 41 and a two-stage support frame 42, respectively.

The housing 41 is integrally provided with an upper wall portion 41a and a pair of side wall portions 41b. The housing 41 is provided with fixing pieces 41c extending in the lateral direction from the side edge of the upper wall portion 41a and having fastening holes for fastening members at four locations, front, rear, left and right. The housing 41 is integrally provided with a fixed flange piece 41d extending laterally from the front edge of the side wall portion and a pair of side flange pieces 41e extending laterally from the lower edge of the side wall portion. The housing 41 is integrally provided with a board fixing portion 41f to which the bottom plate is fixed at the rear end thereof.

The support frame 42 is made of, for example, a metal material, and integrally includes a rectangular bottom plate 42a and a pair of side walls 42b erected upward from both side edges of the bottom plate.

The pair of side walls 42b are configured in a plate shape having a predetermined height dimension. The side wall 42b integrally has a rail projection 42c that protrudes inward at the upper edge. The rail projection 42c forms a guide slit 42d, which is a recess in which the link rail 43 is disposed on the inner wall of the side wall 42b.

The rail protrusion 42c has a step part 42g whose rear part is located above the front part at a predetermined position. That is, the rail projection 42c is provided on one and the other of the stepped portions 42g, and the rear rail projection 42c is positioned above the front rail projection 42c.

A plate spring portion 42e constituting an urging portion is provided at a predetermined position of the pair of side walls 42b. The leaf spring portion 42e has a spring piece in which a predetermined region of the pair of side walls 42b is cut into a U shape. The leaf spring portion 42e has a cantilever structure in which the front in the sliding direction is the base end and the rear in the sliding direction is the free end, and a spring convex portion 42f protruding inward is formed at the tip. Yes.

The link rail 43 is a frame-like member extending in the first direction, and includes rail protrusions 43a projecting inward of the slot 40a at the upper and lower ends thereof, and is configured, for example, in a U-shape in cross-section. The link rail 43 forms a second guide slit 43c, which is a recess extending along the first direction, on the inner wall thereof by the rail protrusion 43a.

The link rail 43 is slidably engaged with the support frame 42 by the rear end region being arranged in the first guide slit 42d of the support frame 42. Further, the link rail 43 guides the moving direction of the HDD tray 24 in the first direction by arranging the side portion of the HDD tray 24 in the second guide slit 43c formed on the inner wall thereof.

The rail protrusion 43a has a stepped portion 43b whose rear portion is higher than the front portion at a predetermined position. That is, the rail projection 43a is provided on one and the other of the stepped portions 43b, and the rear rail projection 43a is located above the front rail projection 43a. The stepped portion 43b serves as a stopper that regulates the relative positional relationship between the link rail 43 and the support frame 42 in the first direction by contacting the lower rail protrusion 42c in the front portion of the side wall 42b.

That is, the HDD case 22, the support frame 42, and the link rail 43 constitute a guide rail mechanism that can be expanded and contracted in two stages. The HDD case 22 is supported by the HDD holder 23 so as to be capable of reciprocating along a predetermined first direction.

At a predetermined position of the link rail 43, a leaf spring portion 43e constituting an urging portion is provided. The leaf spring portion 43e has a spring piece in which a predetermined region of the link rail 43 is cut into a U shape. The leaf spring portion 43e has a cantilever structure in which the front in the sliding direction is the base end and the rear in the sliding direction is the free end, and a spring convex portion 43f that protrudes inward is formed at the tip. Yes.

The backboard 14 is a substrate on which electronic components are mounted, and is erected on the back surface of the HDD unit 12. For example, the backboard 14 has a connector connected to the HDD 21 mounted on a main surface opposed to the back surface of the HDD 21. When the HDD 21 is inserted and housed in the slot 40a of the HDD holder 23, the terminal at the rear end of the HDD 21 is arranged in the opening on the rear side of the slot 40a of the HDD holder 23, and is electrically and mechanically connected to the connector of the backboard 14. Connected. By connecting the rear end of the HDD 21 to the backboard 14, the rear of the HDD 21 is supported.

In the HDD unit 12, the

leaf spring portions

25c, 25d, 35a, 42e, and 43e serve as a grounding point of GND as a plurality of urging portions. That is, from the HDD 21 by the conductive

leaf spring portions

25c, 25d, 35a provided on the HDD case made of a metal material and the conductive leaf spring portions 42e, 43e provided on the HDD holder 23 and the link rail 43, The HDD case 22 and the HDD holder 23 are electrically connected.

The replacement work of the HDD 21 of the HDD unit 12 configured as described above will be described with reference to FIGS.

In the first state shown in FIG. 4, the HDD unit 12 is in a state in which the HDD tray 24 is pushed into the rear end portion in the sliding direction at the back of the slot 40a. At this time, the HDD 21 is placed on the HDD tray 24 and the HDD cover 25 is in the closed position. In this first state, the HDD cover 25 is placed on the upper surface of the HDD 21 and is disposed between the ceiling of the slot 40a. At this time, the upper leaf spring biases the ceiling, and the lower leaf spring biases the upper surface of the HDD 21 downward. The pressing piece 25 b of the HDD cover 25 is pressed against the upper surface of the HDD 21. At this time, the guide rail mechanism constituted by the support frame 42 and the rail member is in a contracted state.

When the fastening member 34 is removed from this first state and the HDD tray 24 is pulled in the pulling direction, the guide rail mechanism constituted by the HDD case 22, the support frame 42, and the link rail 43 is extended, and the HDD tray 24 is moved to the front plate. It will be in the 2nd state pulled ahead rather than 11c. In this second state, the HDD cover 25 in the closed position is rotated toward the open position to open the upper side of the HDD tray 24. Then, the HDD 21 is taken out and another HDD 21 is set on the HDD tray 24.

Thereafter, the HDD cover 25 in the closed position is rotated toward the closed position and is put on the HDD 21. Next, the HDD tray 24 is pushed into the slot 40a. Then, the guide rail mechanism contracts again, and the HDD tray 24 is accommodated in the slot 40a and enters the first state, the fastening member 34 is fastened, and the replacement work is completed.

The HDD unit 12 and the electronic device 10 configured as described above have the following effects. That is, the HDD tray 24 includes the HDD cover 25 that elastically holds the HDD 21 from above, so that the HDD 21 can be positioned and fixed in the vertical direction. For this reason, it is possible to reduce the number of screws, making maintenance work easier and eliminating the need to manage small parts such as screws when working in special locations such as a computer room. Is expensive.

Further, by forming

plate spring portions

25c, 25d, 35a, 42e, and 43e with cantilever structures on the side walls of the HDD tray 24, the link rail 43, and the support frame 42, the HDD width direction movement restriction and GND Both grounding can be achieved. In addition, since the configuration is such that the

plate spring portions

25c, 25d, 35a, 42e, and 43e of the cantilever structure are elastically biased in the width direction and the vertical direction, it is possible to realize a configuration with high vibration isolation.

The HDD tray 24 includes a restriction protrusion 31d that restricts the forward movement of the HDD 21 and a restriction wall 32d that restricts the backward movement, thereby restricting the movement of the HDD 21 in the front-rear direction.

In addition, since the HDD tray 24 is supported by the HDD holder 23 by a guide rail mechanism that can slide in two stages, the HDD tray 24 can be completely pulled out of the housing 11, and maintenance workability is improved. Is expensive. Further, even when the HDD tray 24 is largely pulled out from the electronic device 10, it is possible to suppress bending downward due to its own weight.

The present invention is not limited to the above embodiment.

For example, as another embodiment, the HDD tray 24A shown in FIG. 10 includes an EMI (Electro Magnetic Interference) gasket 46 instead of the spring plate 35 as an urging portion. Other configurations are the same as those of the HDD tray 24A according to the first embodiment. The EMI gasket 46 includes, for example, a cushion-like sponge-like elastic member and a conductive coating material (covering portion) such as a conductive cloth wound around the surface of the elastic member. Also in the present embodiment, the EMI gasket 46 and the HDD 21 to the metal HDD tray 24A and the metal HDD holder 23 are electrically connected by the urging

portions

25c, 25d, and 46, so that The same effect as the embodiment is achieved.

In addition, although several embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Claims

An HDD tray configured to allow the HDD to be mounted;
It is arranged on the HDD placed on the HDD tray, and can be switched between a closed state in which the HDD is held down and an open state in which the HDD tray is opened. An HDD cover having an urging portion that comes into contact with the HDD,
An HDD holder configured to accommodate the HDD case and supporting the HDD case so as to be reciprocally movable along a predetermined first direction;
HDD unit comprising:
The HDD tray includes a bottom frame on which the HDD is placed and a side frame, and is slidably engaged with the HDD holder along the first direction.
The HDD unit according to claim 1, wherein the side frame includes a biasing portion that elastically abuts against a side portion of the HDD.
The HDD cover is provided on one end side in the first direction of the HDD tray, and has a closed position that covers at least a part of the HDD placed on the HDD tray and an open position that opens the HDD. A first plate spring arranged between the ceiling portion of the slot and the HDD and protruding downward in the closed state to urge the upper surface of the HDD The HDD unit according to claim 1, further comprising: a second leaf spring that protrudes upward in the closed state and biases the ceiling portion.
The said HDD tray is provided with the control part which controls the position of the said HDD in the position adjacent to the front and back in the said 1st direction of the mounting part of the said HDD, respectively. 2. The HDD unit according to item 1.
The urging portion is a cantilever plate spring member made of a metal material,
The HDD unit according to claim 1, wherein the urging unit, the HDD tray, and the HDD holder are electrically connected.
The urging portion is an EMI gasket including an elastic member and a conductive covering portion that covers a surface of the elastic member,
The HDD unit according to claim 1, wherein the urging unit, the HDD tray, and the HDD holder are electrically connected.
The HDD unit according to claim 1;
A housing configured to accommodate the HDD unit and having a slot opening communicating with the slot;
A backboard mounted on the back surface of the holder in the housing and mounted with a connector connected to a terminal provided in the rearward direction of the HDD;
Electronic equipment comprising.