JP2007183735A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate maintenance and work in fault occurrence in a thin server mounted on a rack. <P>SOLUTION: The thin-shaped server mounted extractably on the rack and mounted with an electronic component is constituted of the first board 2 for mounting the electronic component including an electric power source, a memory and a CPU, and the second board 12 constituted to be extractable to a front face side of a device with respect to the first board, and for mounting an electronic component including an electric power source and a fan unit for cooling the CPU. A cable duct 19 is provided in the first board and the second board to protect coveringly a cable 24 connected with respective end parts thereof, and to constitute structure expanded and contracted in response to an operation for extracting or returning back the second board. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic device, and more particularly to a mounting structure of a thin server mounted on a rack.

  A 1U server is known as this type of thin server. The 1U server has a thickness of about 44.5 mm and a shape in which one section fits in a 19-inch rack. This size is called 1U (unit) from the convention of 19 inches in length and width and 44.5 mm in height as one section. In addition to the CPU and memory, this thin server is equipped with a hard disk (HDD), CD-ROM, FDD, etc. The number of thin servers is increased and stored in a rack according to the processing capacity required by customers. is doing. Depending on the installation environment, 30 or more 1U servers may be mounted in one rack.

  Regarding the mounting structure of a thin server, for example, in Japanese Patent Laid-Open No. 2003-36669 (Patent Document 1), the case of the server unit can be moved to the front to facilitate the replacement of the hard disk device (HDD) in the server unit. As a simple drawer structure, an electronic device and a rack technology are disclosed in which all HDDs can be replaced from the front side.

JP 2003-36669 A

  In recent years, servers are required to operate for 24 hours. For this reason, when a failure occurs or during maintenance, it is preferable to perform the work while operating the server as much as possible, or to perform the work with the server down time as short as possible.

According to the technique disclosed in Patent Document 1, the server unit is not stretched, and the entire unit is moved to the front during work. For this reason, since the part including the connection part on the back surface of the cable is also pulled out to the front surface, the cable connected to the back surface of the unit may be disconnected. In maintenance of a unit mounted on the rack, maintenance work in the server cannot be performed unless the unit is removed from the rack.
Further, Patent Document 1 does not mention cable processing or cable ducts.

An object of the present invention is to provide an electronic apparatus that can easily perform maintenance work without taking a server down from a rack.
An object of the present invention is to provide a novel mounting structure for a thin server in which an electronic component mounting board is divided into a plurality of boards and one board can be pulled out to the front side.

  The present invention is a thin electronic device mounted with electronic components mounted in a state that can be pulled out to a rack, and includes a first board mounted with a certain kind of electronic component, and a first board. A second board on which a certain type of electronic component is mounted, which can be pulled out on the front side of the apparatus, and a cable connected to each end of the first board and the second board; The electronic device is configured such that when the second board is pulled out to the front side with respect to the first board, the second board is pulled out in a state where the connection portion of the cable on the first board side is fixed.

  In a preferred example, the present invention is a thin electronic device on which electronic components are mounted, which is mounted in a drawable state on a rack, and includes a first board on which certain types of electronic components are mounted, A second board on which certain electronic components are mounted, which can be pulled out to the front side of the apparatus with respect to the board, a cable for electrically connecting the first board and the second board, and a cable And a cable duct configured to expand and contract in accordance with the operation of pulling out or returning the second board.

In a preferred example, the first board mounts electronic components including a power supply, memory, and CPU, and includes a first top plate that covers these electronic components, and the second board cools the HDD, and the power supply and CPU. An electronic component including a fan unit for mounting is mounted, and a second top plate that covers these electronic components is provided.
Preferably, the cable duct has a multi-stage structure and includes a plurality of pins standing upright inside, and guides the cable between the pins.
Preferably, the plurality of pins are provided upright at an asymmetrical position when viewed from the front of the apparatus, and the extra length of the cable is secured in a wider space formed by the pins and the inner wall of the cable duct. So as to guide the cable.

  According to the present invention, the maintenance work of the thin server can be easily performed by moving the second board to the front side with respect to the first board. Further, since only the second board can be moved to the front side without moving the connection portion (first board side) on the back side of the cable, it is possible to prevent the cable on the back side from being disconnected. Moreover, the cable duct which protects the cable connected to the 1st board and the 2nd board is made into an expansion-contraction structure, Therefore The extra length process of a cable and the cooling efficiency of components can be maintained.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing an internal mounting structure of a thin server, and FIG. 2 is an external view thereof. 3 shows the appearance of the server covered with the rear top panel 28 with respect to FIG. 1, and FIG. 4 shows a state in which the front top panel 27 is opened from the state of FIG. The internal structure of the thin server shown in FIG. 1 shows a state in which the housing is extended from the state shown in FIG. 2 and the front top plate 27 and the rear top plate 28 are removed from the states shown in FIGS.
A plurality of thin servers 1 are mounted on a rack 31 shown in FIG. FIG. 8 shows a state where the thin server 1 is pulled out from the rack 31 to the front side.

  1-4, 2 is a motherboard, 3 is a CPU, 4 is a memory, 5 is a chipset, 6 is a PCI riser card, 7 is an HDD, 8 is a CD-ROM drive, 9 is an FD drive, and 10 is a front panel. Board, 11 fan unit, 12 HDD backboard, 13 CD-ROM cable, 14 FDD cable, 15 front panel board cable, 16a power supply (standard side), 16b power supply (expansion side), 17 Power supply backboard, 18 is a power cable, 19 is a cable duct, 20 is a back connector, 21 is a back cable, 22 is a PCI board slot, 24 is a cable, 25 (FIG. 6) is a motherboard side cable connector, and 26 is a HDD. A backboard connector 27 is a front top plate, 28 is a rear top plate, and 30 is a rack ear. A front bezel 29 (FIG. 2) is provided on the front surface.

  FIGS. 3 and 4 show a state in which the structure of FIG. 1 is covered with a rear top plate 28, both of which are extended from the middle. However, the front bezel 29 is removed. FIG. 5 is an internal structural diagram of the server 1 in the state of FIG. 2, and shows a state where the extended state (FIG. 1) is returned to the storage state (original state).

  What is characteristic in the present embodiment is that the motherboard 2 is mounted with a CPU 3, a memory 4, a chip set 5, a PCI riser card 6, power supplies 16a and 16b, and the HDD backboard 12 includes an HDD 7, a CD- A ROM drive 8, an FD drive 9, a front panel board 10, and a fan unit 11 are mounted. Here, the HDD backboard 12 has a structure that can be pulled out to the front side with respect to the motherboard 2. The HDD backboard 12 and the motherboard 2 include connectors 26 and 25, and a cable 24 is connected to these connectors 25 and 26. In addition, an extendable cable duct 19 is mounted to cover the cable 24 and protect it. This will be described in detail with reference to FIG. 6 and subsequent drawings.

  6 is a top plan view of FIG. In this state, the front top plate 27 is stored below the rear top plate 28, and the HDD backboard 12 is stored. The cable duct 19 is in a contracted state. 7 shows a state in which the HDD backboard 12 is pulled out from the state of FIG. 6 to the front side, and the cable duct 19 is extended. The cable 24 in the cable duct 19 is also extended.

9 to 12 show the configuration of the cable duct 19. The cable duct 19 has a several-stage structure, for example, a three-stage structure, and is composed of three ducts 191, 192, and 193 having different box-shaped boxes in order as shown in FIGS. The upper end portion A of the duct 191 is fixed to the mother board 2 side as a fixing portion, and the lower end portion B of the large duct 193 is fixed to the movable HDD backboard 12. The larger ducts 193 and 192 on the moving side cover the smaller ducts 192 and 191.

Further, two pins 23 are fixed upright in the cable duct 191. The pin 23 forms a space in consideration of the extra length processing of the cable 24.
13 and 14 show a state in which the cable 24 in the cable duct 19 is wired. The cable 24 is guided between the two pins 23 and connected to the motherboard-side connector 25 and the HDD backboard-side connector 26. The cable 24 extends between the two pins 23. When the HDD backboard 12 is restored from the stretched state, the cable duct 19 and the cable 24 in the cable duct 19 are contracted to be housed in the duct 191 as shown in FIG.

  As shown in FIGS. 9 to 13, in this embodiment, the two pins 23 are installed slightly on the left side of the cable duct 19, and a large space is provided on the right side in the cable duct 19, so that the extra length of the cable 24 is obtained. Processing. Here, the position of the pin 23 may be on either the left or right side of the cable duct 19, but it is possible to secure a space for the extra length processing of the cable 24 by moving to either one of them. Further, by using a flexible cable such as a serial ATA cable as the cable 24, the cable 24 in the cable duct 19 can be processed smoothly.

In a thin server, since a heat generating part such as the CPU 3 is mounted in a narrow casing, the temperature inside the casing rises. Therefore, a powerful fan unit 11 is required to cool the inside of the apparatus. However, there is a possibility that the CPU 3 and the like are not sufficiently cooled only by extending the casing.
According to the embodiment of the present invention, the cooling efficiency of the fan unit 11 is improved because the cooling air of the fan unit 11 does not escape onto the apparatus by covering the extended part of the apparatus with the front top plate 27. . Further, when the apparatus is maintained or malfunctioned, the front top plate 27 can be opened for work.

In the state where the cable duct 19 is extended as shown in FIGS. 1 and 7, the cooling air from the fan unit 11 is divided into the CPU 3 side and the power source 16 side, so that the inside of the apparatus can be efficiently cooled. That is, the cable duct 19 serves as a partition plate for cooling air.
As shown in FIG. 8, the server maintenance work or the like is performed by, for example, performing maintenance on a faulty part such as the fan unit 11 or the HDD backboard 12 with the server device pulled out from the rack 31 and the front top panel 27 opened. be able to.

  As for the rear cables 21 connected to the rear surface of the thin server 1, since a large number of servers are mounted on the rack 31, the cables 21 have an extra length or the cables 21 are fixed to the arms and the arms are fixed. Even if the expansion and contraction can be performed, the cable wiring becomes complicated, and the cables 21 may be disconnected from the connector 20 on the back of the apparatus or the cables 21 may be entangled. However, in this embodiment, since the rear portion of the apparatus is fixed to the rack 31, there is no possibility that the cables 21 on the rear face of the apparatus are disconnected or entangled.

  Although one embodiment has been described above, the present invention is not limited to application to a thin server. Any electronic unit that is housed in a rack and can be pulled out from the rack can be applied to devices other than servers.

The figure which shows the internal mounting structure of the thin server in one Example. External view of thin server in one embodiment, The external view which shows the state which extended the thin server in one Example, The figure which shows the state which extended the thin server in one Example, and removed the front top plate, The figure which shows the internal structure state of the thin server in one Example. The upper top view which shows the internal structure state which looked at the thin server in one Example from the top, The upper top view which shows the internal structure state of the state which extended the thin server in one Example, The figure which shows the structure of the rack 31 in one Example, and the state which extended one thin server 1. The figure which looked at the cable duct 19 in one Example from the top, The figure which looked at the cable duct 19 in one Example from the side, The figure seen from the top in the state which extended cable duct 19 in one example, The figure seen from the side in the state which extended the cable duct 19 in one Example, The figure which shows the cable wiring state in the normal time of the thin server in one Example. The figure which shows the cable wiring state when the board | substrate of the thin server in one Example is pulled out.

Explanation of symbols

1: Thin server 2: Motherboard 3: CPU 4: Memory 5: Chipset 6: PCI riser card 7: HDD 8: CD-ROM drive 9: FD drive 10: Front panel board 11: Fan unit 12: HDD backboard 13 : CD-ROM cable 14: FDD cable 15: Front panel board cable 16a: Power supply (standard side) 16b: Power supply (additional side) 17: Power supply backboard 18: Power cable 19: Cable duct 20: Rear connectors 21: Rear Cables 22: PCI board slot 23: Pin 24: Cable 25: Motherboard side connector 26: HDD backboard side connector 27: Front top panel 28: Rear top panel 29: Front bezel 30: Rack ear 31: Rack 191: Long hole

Claims (5)

A thin electronic device mounted with electronic components mounted in a state that can be pulled out to a rack,
A first board on which a certain type of electronic component is mounted; a second board on which a certain type of electronic component is mounted; and a second board configured to be able to be pulled out to the front side of the apparatus with respect to the first board; A first board and a cable connected at each end to the second board, and when the second board is pulled out to the front side with respect to the first board, the first board An electronic device, wherein the second board is pulled out in a state where the connecting portion of the cable on the side is fixed. A thin electronic device mounted with electronic components mounted in a state that can be pulled out to a rack,
A first board on which a certain type of electronic component is mounted; a second board on which a certain type of electronic component is mounted; and a second board configured to be able to be pulled out to the front side of the apparatus with respect to the first board; A first board and a cable each having an end connected to the second board, and a structure that covers and protects the cable and can be expanded and contracted in accordance with an operation of pulling out or returning the second board An electronic device comprising: a cable duct configured as described above. The first board mounts electronic components including a power source, a memory, and a CPU, and includes a first top plate that covers these electronic components, and the second board cools the HDD, the power source, and the CPU. The electronic device according to claim 1, further comprising a second top plate on which electronic components including a fan unit for mounting are mounted and covering the electronic components. 4. The electronic device according to claim 2, wherein the cable duct has a multi-stage structure and includes a plurality of pins standing upright in the cable duct, and the cable is guided between the pins. The plurality of pins are provided upright at an asymmetrical position when viewed from the front of the device so as to secure an extra length portion of the cable in a wider space formed by the pins and the inner wall of the cable duct. The electronic device according to claim 1, wherein the cable is guided.

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