JP2000148293A - Server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a server which eliminates the need for a harness, etc., for termination by providing termination for an HDD(hard disk drive) unit to a connector substrate arranged at the bottom part of a slot of a HDD rack. SOLUTION: The server is equipped with the HDD rack equipped with a connector substrate 35 electrically connected to respective HDD units 12 on the bottom part side, an I/F rack which can contain an interface board, and an MB rack equipped with a main board capable of controlling the HDD units 12 through the interface board. The connector substrate 35 is composed of a base substrate 38 which is equipped with an I/F connector connected to the I/F rack and fixed to the bottom part of the slot and of a floating substrate which is held in a floating state with the elastic force of the harness connected to the base substrate 38 and equipped with an HDD connector connected to the HDD unit 12, and the base substrate 38 is equipped with the termination 46 of the HDD unit 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a server provided with a termination for an HDD unit on a connector board corresponding to a connector on a receiving side provided in an HDD rack accommodating an HDD unit.

[0002]

2. Description of the Related Art A RAID (Redundant Ar) in which a plurality of HDD (Hard Disc Drive) units incorporating a fixed disk according to the prior art are mounted.
In a server having a configuration of “rayof inexpensive disks”, while a HDD rack equipped with a plurality of HDD units is in operation,
In order to make the unit easy to replace, the device is designed so that it can be inserted and removed from the front or above the server. That is, a frame-shaped caddy is attached to the HDD main body to form an HDD unit, and the HDD unit has a structure in which an excessive impact or the like is not applied to the HDD main body at the time of insertion and removal. The server has an I / F rack that houses an interface board at a position close to an HDD rack that houses an HDD unit having such a structure, and an MB (Mai) that houses a main board connected to the I / F rack.
nBoard) racks and a motherboard to which these are connected.

[0003]

However, a plurality of HDD units described in the above-mentioned prior art are combined into one HD.
When housed in a D rack, there is a problem that an increase in a substrate area and an increase in a harness are required in a positional relationship in which a termination of a signal electrically connected to the HDD unit is provided.

[0004] Therefore, in a server in which a plurality of HDD units are integrated into one HDD rack, there is a problem to be solved in an arrangement structure in which necessary termination is provided for each of the stored HDD units.

[0005]

In order to solve the above-mentioned problems, a server according to the present invention has at least a plurality of slots provided with a guide member for inserting an HDD unit and is formed on a bottom side. An HDD rack having a connector board electrically connected to each HDD unit, an I / F rack capable of accommodating an interface board connected to each HDD unit mounted in each slot, and an I / F rack. A server mounted with an MB rack having a main board capable of controlling the HDD unit via a face board, wherein the connector board is an I / F connector connected to the I / F rack. And a base substrate fixed to the bottom of the slot, and an elastic force of a harness connected to the base substrate. Consists of a flow proboscis substrate having a HDD connector to be connected to the HDD unit with are maintained in the flow proboscis state, is on the base substrate is that with termination of the HDD unit.

Further, the floating state of the floating substrate is generated by an approximate positioning means and a unique elastic force of a harness connected to the floating substrate, and the harness is , Is divided into predetermined intervals.

As described above, in the HDD rack capable of accommodating a plurality of HDD units, by providing a structure in which a termination is provided on a connector board which is directly electrically connected to the HDD unit, a separate harness for termination is increased. Eliminates the need. In addition, since it is not necessary to provide a dedicated termination for each HDD unit on the side that controls the HDD unit, the number of components can be reduced, and the area on the substrate can be increased.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a server provided with an HDD rack according to the present invention, in particular, an AV server will be described with reference to the drawings.

As shown in FIG. 1, the server according to the present invention is formed in a cabinet 10 and has a panel section 11 for performing various operations at a front position thereof, and a plurality of Hs therein.
An HDD rack 13 on which the DD unit 12 can be mounted, and an I / O that is located at a position close to the HDD rack 13 and houses an interface board 15 that manages an interface between the HDD unit 12 and the main board 14. F (Inter / Face) rack 16 and HDD unit 12 via interface board 15
(Ma) containing the main board 14 for controlling the
I / F motherboard 1 which is located at the bottom of an inboard rack 17 and an I / F rack 16 and transmits and receives signals and data to and from the HDD rack 13 and the MB rack 17.
8 and the I / F rack 1 located at the bottom of the MB rack 17
6, a MB motherboard 19 for transmitting and receiving signals and data to and from the DC rack 6;
For example, a power supply unit 20 that generates and supplies a power supply voltage of 5 volts and 12 volts, and a cooling unit 22 including a cooling fan 21
It is composed of

The HDD rack 13 is, as shown in FIG.
A slot 2 which is formed in a rectangular parallelepiped cage shape and in which a plurality of HDD units (11 HDD units in the embodiment) can be mounted in an aligned state at predetermined intervals.
5, a connector board having an HDD connector on the bottom side, which is paired with a slot 25 not shown but facing the slot 25, and a connector of the HDD unit connected to the upper end of the long side and engaged with the HDD unit. It comprises a unit locking portion 23 formed of an elongated groove which also serves as a stopper for retaining the unit, and buffer portions 26 provided on both side wall surfaces on the short side. The buffer 26 is a so-called damper, and has a structure in which a side plate of a server (not shown) and the buffer 26 on both side walls can be mounted. The HDD rack 13 mounted via the buffer 26 in this manner is in a state where the HDD rack 13 itself is floating from the server. That is, the buffer unit 26 of the HDD rack 13 buffers the external shock received by the server, and reduces the shock applied to the HDD rack 13. As a result, the HD stored in the HDD rack 13
The D unit can be protected from external impact.

Each slot is, as shown in FIG. 2 and mainly shown in FIG. 3, an elongated U-shaped rail guide portion 27 opening inward, and a guide member engaged and supported by the rail guide portion 27. And a guide rail 28.

The guide rail 28 is formed of a resin, and includes a rectangular convex portion 29 having an elongated shape on both sides and a groove portion 30 formed between the convex portions 29.
The unit has a structure in which a partially inserted unit insertion guide portion for preventing the reverse insertion direction of the DD unit and a temporary fixing portion 32 for temporarily fixing and locking the HDD unit are provided at a lower position.

The temporary fixing portion 32 is formed by thickening a part of the surface of the convex portion 29 and forming a thick portion 34 on both sides of the convex portion 29 on the groove portion 30 side. A notch 30a is provided along the length direction of the convex portion 29 at the boundary between the formed groove portion 30 and both convex portions 29, 29. In such a temporary fixing portion 32, the caddy of the HDD unit 12 is engaged with the guide rail 28,
Even when the unit 12 falls due to its own weight, the tip end where the caddy is engaged is lightly press-fitted and the HDD unit 1
2 stops before the connector engages.

As shown in FIGS. 3 to 6, the connector board 35 is attached to the bottom of the pair of slots 25, and is electrically connected to the I / F rack 16 (see FIG. 1) by a flat cable 36. A base board 38 provided with an I / F connector 37 on the back side, a connector support section 39 made of a metal bracket on the front side of the base board 38, and the connector support section 39. Protector 40 formed of an insulating member provided
And a floating board 41 mounted on the connector support section 39 in a floating state.

As shown in FIGS. 3 and 4, the base substrate 38 is formed of a rectangular laminated substrate, and on the back surface, an I / F connector 37 disposed along a long side and an I / F connector 37 are provided. A floating harness 42 pulled out from an intermediate position on the side wall surface of the substrate on the opposite side of the connector 37, and a termination 46 made of a resistive element of a chip are provided between the I / F connector 37 and the floating harness 42. It has a structure. The termination 46 is provided in a state where two chips are aligned.

The floating board 41 has a floating harness 42 taken out from an intermediate position of a side wall formed in a laminated structure, and an HDD connector 43 which is engaged with a connector of the HDD unit 12 on an upper side. It has become. The HDD connector 43 is connected to the SCA (SINGING).
LE CONNECTER ARCHITECTUR
E) The connector is based on the standard, but is not limited to this. Also, at both ends of the short side of the floating substrate 41,
A U-shaped notch 45 is provided, which is cut out to a size that can be loosely fitted to the stepped screw 44 as an approximate positioning means. The U-shaped notch portion 45 is fitted in a sliding portion 48 (see FIG. 5) of the step screw 44 in a loosely fitted state, and supports the floating substrate 41 in a floating state.

The connector protection section 40 is formed of an insulating member, and covers an area where the floating harness 42 moves and comes into contact with the connector support section 39 so that the floating harness 42 from the floating board 41 is not rubbed and damaged. Structure.

The floating harness 42 has a harness structure divided at predetermined intervals (in the embodiment, a harness structure divided into twelve at predetermined intervals), and one side has a laminated structure. Base substrate 3 formed
8 is pulled out from the middle position of the side wall surface, and the other side is connected to the middle position of the side wall surface of the floating substrate 41.
The floating harness 42 having a harness structure divided in this way is formed into a curved shape, giving a unique elastic force of the harness to the floating substrate 41, and in the floating state, not only the right and left and up and down tilts but also the rotation direction is obtained. It can withstand even the inclination.

Step screw 4 which is an approximate positioning means
As shown in FIG. 5 in particular, reference numeral 4 denotes a dish portion 47 formed in a cross shape and a diameter smaller than the dish portion 47 and which can be loosely fitted into the U-shaped cutout portion 45 of the floating substrate 41. The sliding portion 48 is formed to have a length approximately twice as large as the thickness of the floating substrate 41, and a screw portion 49 connected to the sliding portion 48.

The connector board 35 having such a structure
As shown in FIGS. 5 and 6, a connector support 39 is first mounted on a base substrate 38 and fixed.
Then, the connector protection section 40 is attached to the upper portion, and the floating board 41 is attached to the connector support section 39 in a state where the floating board 41 is loosely fitted to the step screw 44. Then, the floating substrate 41 and the HDD connector attached to the floating substrate 41 are lifted upward by the inherent elastic force of the curved floating harness 42. At the same time, it can be freely moved in any direction of the left, right, up and down directions by adding the rotation direction only by the gap between the sliding portion 48 of the stepped screw 44 fitted in the U-shaped notch portion 45 and the diameter. That is, while the floating board 41 provided with the HDD connector 43 itself is brought into a floating state by the elastic force of the divided floating harness 42, the stepped screw 44 is formed.
Can move freely within the range of the length of the sliding portion 48.
In this state, when the HDD unit 12 is inserted from above the slot 25 (see FIG. 2) and inserted, the connector of the HDD unit 12
By making light contact with the connector 43, the floating substrate 41 can be freely moved and aligned, and the connectors can be connected in a good fitting state.

The connector board 35 having such a structure
As shown in FIG. 7, the HDD unit 12
The hard disk drive includes a HDD main body 50 in which a hard disk and a board for controlling the hard disk are integrated, and a frame-shaped caddy 51 mounted on the HDD main body 50. The lower portion of the HDD main body 50 is provided with a connector 24 that engages with the HDD connector in a male and female relationship.

The caddy 51 is formed by forming a U-shaped support member into a frame shape.
When the unit 12 is inserted into the slot and mounted, the handle engaging portion 52 also serves as a handle for mounting and locking in the slot.
And light press-fit projections 53 bulging to the upper position on both side surfaces, and screwing portions 54 for fixing HDD main body 50 with screws.
And the structure provided.

The handle engaging portion 52 has a handle portion 55 rotatable in the left-right direction in FIG. 7, and a handle rotating portion 56 interlocked with the movement of the handle portion 55, and interlocked with the handle rotating portion 56. And a locking rotation part 57 that rotates. The locking rotation portion 57 has a locking projection 5 which can be retracted outward.
8 is provided. This locking projection 58 is
When connectors are connected to each other, slot 2 (not shown)
The HDD unit 12 is engaged and locked by being fitted into a unit locking portion 23 provided on the upper portion of the HDD 5.

HDD unit 1 having such a structure
In order to insert and engage the 2 into the slot, first, as shown in FIG.
The lower end of the side wall surface of the caddy 51 of the D unit 12 is positioned and engaged. Next, as shown in FIG. 8, when the HDD unit 12 engaged with the guide rail 32 is pushed in, the HDD unit 12 is inserted with its own weight added thereto, and the temporary fixing portion 32 of the guide rail 28 is inserted into the carriage of the HDD unit 12. The lower end of 51 is lightly press-fitted and temporarily fixed. At this time, the connector 24 (male SCA connector) of the HDD unit 12 and the HDD connector 43 (female SCA connector) of the connector board 35 have a positional relationship facing each other.

In this state, as shown in FIG. 9, when the HDD unit 12 is pushed in from above, the HDD connector 43 of the connector board 35 which can be freely moved while being restricted in position by the sliding portion 48 of the step screw 44 is connected to the HDD unit 12. Connector 2
4, the connectors are engaged with each other, and the handle portion 55 of the handle engaging portion 52 also serving as a handle at both upper ends of the HDD unit 12 is pivoted outward to be provided above the slot 25. The locking projection 58 is fitted into the unit locking portion 23 to engage and lock the HDD unit into the slot 25 also as a stopper.

As described above, the HDD connector 43 provided on the connector board 35 serving as the receiving side connector is arranged in a floating state, and the connector 2 of the HDD unit 12 is disposed.
In step 4, the HDD connector 43 in the floating state is moved in all directions for alignment, and the connectors 43, 2
4 are connected to each other. Then, since a large correction amount can be obtained between the connectors 43 and 24, the load applied to the connectors 43 and 24 can be reduced and electrical connection can be obtained. That is, when the connectors are connected,
The termination provided on the base board of the connector board can be connected to the signal line of the connector of the HDD unit.

In this way, by providing a structure in which the connector board directly connected to the HDD unit is provided with the termination, it is not only necessary to separately route the termination harness, but also provided on the side for controlling the HDD unit. Another element can be mounted in the area where the termination is mounted.

[0028]

As described above, the connector board provided in the slot in the HDD rack constituting the server according to the present invention has a structure in which the termination required for the HDD unit is provided, so that the dedicated termination is provided. Not only does the wiring of the harness etc. become unnecessary,
There is an effect that the mounting space of another substrate can be increased to provide the termination.

[Brief description of the drawings]

FIG. 1 is an overall perspective view schematically showing an internal configuration of a server according to the present invention.

FIG. 2 is an overall perspective view of an HDD rack in the server.

FIG. 3 is a main part perspective view showing an engagement relationship between a guide rail forming the slot and a connector board.

FIG. 4 is an overall perspective view of the connector board as viewed from the back side.

FIG. 5 is an enlarged perspective view of a main part showing a floating state of the connector board.

FIG. 6 is a side view showing a floating state of the HDD connector of the connector board.

FIG. 7 is a plan view showing a state of the HDD unit when engagement with a slot of the HDD rack is started.

FIG. 8 is a plan view showing a state of the HDD unit temporarily engaged and locked with a slot of the HDD rack.

FIG. 9 is a plan view showing a state where the HDD unit is engaged and locked in a slot of the HDD rack.

[Explanation of symbols]

10: Cabinet, 11: Panel, 12: HDD unit, 13: HDD rack, 14: Main board, 1
5; interface board, 16; I / F rack, 1
7; MB rack, 18; I / F motherboard, 19;
MB motherboard, 20; power supply section, 21; cooling fan, 22; cooling section, 23; unit locking section, 24; connector, 25; slot, 26; buffer section, 27; rail guide section, 28; 29; convex portion, 30; groove portion, 30a; notch, 32; temporary fixing portion, 33;
4; wall thickness, 35; connector board, 36; flat cable, 37; I / F connector, 38; base board, 39;
Connector support part, 40; Connector protection part, 41; Floating board, 42; Floating harness, 43; HD
D connector, 44; step screw, 45; U-shaped notch, 4
6; termination, 47; plate portion, 48; sliding portion, 4
9; screw portion, 50; HDD body, 51; caddy, 5
2; handle engagement portion, 53; light press-fit projection portion, 54; screwed portion, 55; handle portion, 56; handle rotation portion, 57; locking rotation portion, 58; locking projection portion

Claims (3)

[Claims] 1. An HDD rack having at least a plurality of slots provided with guide members for inserting an HDD unit and having a connector board on a bottom side for electrically connecting to each HDD unit. An I / F rack capable of accommodating an interface board connected to each HDD unit mounted in each slot;
MB provided with a main board capable of controlling the HDD unit via the interface board
A server mounted with a rack, wherein the connector board includes an I / F connector connected to the I / F rack, and is fixed to a bottom of the slot; and a connector board connected to the base board. Being maintained in a floating state by the elastic force of the harness,
A server comprising: a floating board having an HDD connector connected to a unit; and the base board having a termination of the HDD unit. 2. The server according to claim 1, wherein the floating state of the floating substrate is generated by an approximate positioning means and a unique elastic force of a harness connected to the floating substrate. . 3. The server according to claim 2, wherein the harness is divided at a predetermined interval.