JP3149116U - Computer unit and computer apparatus - Google Patents

Abstract

To obtain a computer unit and a computer apparatus that achieve downsizing of the apparatus, improvement in maintainability, and cost reduction without lowering the cooling capacity of a heating element such as a CPU. A computer unit 10 includes a motherboard 11 on which a CPU 14 and a cooling fan 16 for air-cooling the CPU 14 are mounted on a front surface side, and a holder board 13 that holds the motherboard 11 from the back surface side. A duct space 18 is formed between the mother board 11 and the holder board 13, and a vent hole 13a is provided at a position of the holder board 13 facing the cooling fan 16 of the computer unit 10 disposed adjacent thereto. . [Selection] Figure 7

Description

  The present invention relates to a computer unit including a motherboard and a holder board for holding the motherboard, and a computer apparatus such as a server including one or more computer units.

  2. Description of the Related Art Conventionally, a cooling structure for a heating element such as a semiconductor device in which a radiator with a radiation fin is fixed to the head, a duct through which cooling air passes, a heating element disposed on one surface of the cooling duct, and the inside of the cooling duct A partition plate that divides the air path into an air supply side and an exhaust side, one air supply side serves as a pressure chamber, and the other exhaust side is divided into a cooling chamber containing the heating element, the partition plate comprising: There is a cooling structure for a heating element in which an outlet for cooling air is opened at a position corresponding to each of the heating elements, and a wind shielding plate is provided in the immediate vicinity of the windward side of each heating element (for example, Patent Document 1). reference).

Japanese Patent Laid-Open No. 07-240589

  However, according to the above conventional technique, a dedicated cooling duct must be provided in order to cool a heating element such as a semiconductor device. Therefore, in a computer apparatus such as a server including one or a plurality of computer units, there is a problem that a cooling duct installed in the housing causes an increase in the size of the apparatus, deterioration in maintainability, and cost increase. there were.

  The present invention has been made in view of the above, and provides a computer unit and a computer apparatus that are reduced in size, improved in maintainability, and reduced in cost without reducing the cooling capacity of a heating element such as a CPU. The purpose is to obtain.

  In order to solve the above-described problems and achieve the object, the present invention includes a motherboard on which a CPU and a cooling fan for air-cooling the CPU are mounted on a front surface side, and a holder board that holds the motherboard from the back surface side. A computer unit comprising: a duct space formed between the motherboard and the holder board; and a vent hole formed at a position of the holder board facing a cooling fan of the computer unit disposed adjacently. It is provided.

  In addition, the air passage cross-sectional area of the duct space is substantially equal to the area of the vent hole.

  Further, the motherboard is characterized in that a heat generating component is mounted on the back side.

  Further, the computer unit is installed in the housing of the computer device, the duct space is communicated with the intake port of the housing, and the space on the surface side of the motherboard is communicated with the exhaust fan installed in the housing. It is characterized by that.

  Further, the computer device is characterized in that a plurality of the computer units are installed in the casing so as to be adjacent to each other so that the ventilation hole and the cooling fan are opposed to each other.

  Further, the computer device forms a second duct space communicating with the air inlet between the housing and a structural frame board disposed inside the housing, A second ventilation hole is provided at a position facing the cooling fan of the computer unit.

  Further, the computer apparatus is characterized in that a computer device or a board is installed in the second duct space.

  Further, the computer device is a computer device comprising a housing having an air inlet and an exhaust fan, and a motherboard installed in the housing and provided with a CPU and a cooling fan for air-cooling the CPU on the surface side. A duct space communicating with the air inlet is formed between the housing and the structural frame board disposed inside the housing, and the structural frame board is opposed to the cooling fan of the motherboard. Further, a vent hole communicating with the duct space is provided, and the space on the surface side of the motherboard is communicated with the exhaust fan.

  Furthermore, the computer apparatus is characterized in that a computer device or a board is installed in the duct space.

  The computer unit according to the present invention is reduced in size, has an effect of improving maintainability and reducing costs.

  Embodiments of a computer unit and a computer apparatus according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  1 is an exploded perspective view of an embodiment of a computer unit according to the present invention, FIG. 2 is a perspective view of the computer unit of the embodiment, and FIG. 3 shows a plurality of computer units of the embodiment adjacent to each other. FIG. 4 is a front view of the computer unit of the embodiment, FIG. 5 is a side view of the computer unit of the embodiment, and FIG. 6 is a computer of the embodiment. 7 is a top view of the unit, FIG. 7 is a longitudinal sectional view of an embodiment of a computer apparatus according to the present invention, FIG. 8 is a sectional view taken along line AA of FIG. 7, and FIG. 7 is a cross-sectional view taken along line B-B of FIG. 7, FIG. 10 is a perspective view of the computer device seen through the housing, and FIG. 11 is a perspective view of the computer device seen through the housing and the structural frame board. .

  As shown in FIGS. 1 to 6, the computer unit 10 of the embodiment includes a mother board 11 on which computer parts (not shown) are mounted, and a sheet metal holder board 13 that holds the mother board 11 from the back side through a columnar spacer 12. And. The holder board 13 has a bent portion 13b bent in an L shape. The mother board 11 is fastened to the spacers 12 arranged on the peripheral edge of the holder board 13 by screws 17.

  A CPU 14 (see FIGS. 5 and 6) is mounted at the approximate center on the surface side of the mother board 13. A heat sink 15 is abutted on the CPU 14, and a cooling fan 16 is attached on the heat sink 15. The heat sink 15 is made of aluminum or copper, and heat radiation fins are provided radially on a short columnar mandrel, and the outer shape is formed in a columnar shape. When the cooling fan 16 rotates, cooling air flows between the radiation fins, and the CPU 14 is air-cooled through the heat sink 15.

  A duct space 18 (see FIGS. 5 and 6) is formed between the mother board 11 and the holder board 13. A vent hole 13a (see FIG. 1) is provided at a position of the holder board 13 facing the cooling fan 16 of the computer unit 10 disposed adjacent thereto.

  The area of the vent hole 13a is preferably substantially equal to the air passage cross-sectional area of the duct space 18 (the width of the mother board 11 × the height of the spacer 12). By making them substantially equal, the pressure loss is reduced and the flow of cooling air from the duct space 18 to the vent hole 13a is improved.

  Further, if a heat generating component (such as a resistor) of a computer component (not shown) is mounted on the back surface side of the mother board 11, the heat generating component can be cooled by the cooling air flowing through the duct space 18. The cooling air flowing through the duct space 18 not only cools the heat generating components mounted on the back side, but also cools the entire motherboard 11 on which the computer components are mounted.

  As shown in FIGS. 7 to 11, the computer apparatus 30 according to the embodiment is accommodated in a casing 31 formed in a rectangular parallelepiped shape by sheet metal. The housing 31 includes a right side plate 31a, a left side plate 31b, a top plate 31c, a back plate 31d, a bottom plate 31e, and a front door 31f.

  The computer device 30 includes a power supply device, a storage device (hard disk), and the like, but is not shown for the sake of clarity of the explanation of the invention.

  A gate-shaped structural frame board 32 is disposed in the housing 31 in order to increase the rigidity of the housing 31 and prevent deformation. The structural frame board 32 includes a right side plate 32a facing the right side plate 31a of the housing 31 with a gap, a left side plate 32b facing the left side plate 31b of the housing 31 with a gap, and a top plate 31c of the housing 31. And a top plate 32c facing each other with a gap. The rear end of the structural frame board 32 is connected to the back plate 31 d of the housing 31. The gaps between the right side plate 31 a, the left side plate 31 b and the top plate 31 c of the housing 31 and the structural frame board 32 serve as a second duct space 33 for sucking outside air into the housing 31.

  Three exhaust fans 34 are installed in parallel in the left-right direction on the back plate 31 d of the housing 31 below the top plate 32 c of the structural frame board 32. Between the right side plate 32 a and the left side plate 32 b of the structural frame board 32, the three computer units 10 have the bent portion 13 b positioned on the front side, the cooling fan 16 directed leftward, and the ventilation holes of the holder board 13. 13a and the cooling fan 16 are arranged adjacent to each other so as to face each other.

  The bottom plate 31 e of the housing 31 is provided with an intake port 37 in a cooling air portion flowing through the duct space 18 and the second duct space 33. Further, as shown in FIGS. 7 and 8, legs 38 are provided at the lower four corners of the computer device 30 (not shown in FIGS. 10 and 11). A gap corresponding to the height of the leg 38 is provided between the housing 31 and the installation surface such as a floor or a desk so that outside air can be sucked from the air inlet 37. The left side plate 32b of the structural frame board 32 is provided with a second ventilation hole 32d communicating with the duct space 18 at a position facing the cooling fan 16 of the computer unit 10 disposed on the left side. A space 35 on the surface side of the motherboard 11 of the computer unit 10 communicates with the exhaust fan 34. A computer device such as a DVD drive or a substrate 36 is installed in the second duct space 33.

  When the computer device 30 is operated, the cooling fan 16 and the exhaust fan 34 rotate. As shown by black arrows in FIGS. 7 and 11, the computer unit 10 arranged in the center and the computer unit 10 arranged on the right side draw outside air from the air inlet 37, and the duct space of the computer unit 10 adjacent to the left side. 18 and the air vent 13a, the cooling fan 16 blows the intake air to the heat sink 15 to cool the CPU 14, and as shown by white arrows in FIGS. 11 is exhausted through the space 35 on the surface side. At this time, if a heat generating component is mounted on the back side of the mother board 11, it can be cooled by the intake air flowing in the duct space 18.

  On the other hand, the computer unit 10 arranged on the left side, as indicated by black arrows in FIGS. 7 and 10, takes in the intake air from the intake port 37 through the second duct space 33 and the second vent hole 32 d by the cooling fan 16. The CPU 14 is cooled by spraying on the heat sink 15 and exhausted through the space 35 on the front surface side of the mother board 11 by the exhaust fan 34 arranged on the left side as indicated by the white arrow. At this time, the device or the board 36 installed in the second duct space 33 is cooled by the intake air flowing in the second duct space 33.

  In the computer apparatus 30 of the embodiment described above, three computer units 10 are installed, but the number of installed computer units 10 may be one or two, or may be four or more.

  As described above, the computer unit 10 and the computer apparatus 30 according to the embodiment do not have a dedicated cooling duct for cooling the CPU 14 that is a heating element. Therefore, the computer unit 10 and the computer apparatus 30 are not increased in size, and maintenance performance is not deteriorated and costs are not increased. In addition, the cooling capacity of the heating element such as the CPU 14, the heat generating component and the device or the substrate 36 is not lowered. Further, the entire mother board 11 can be directly cooled.

  As described above, the computer unit and the computer apparatus according to the present invention are useful for servers and the like.

It is a disassembled perspective view of the Example of the computer unit concerning this invention. It is a perspective view of the computer unit of an Example. It is a perspective view which shows the state which mutually arranged the computer unit of an Example adjacent to each other in parallel. It is a front view of the computer unit of an Example. It is a side view of the computer unit of an Example. It is a top view of the computer unit of an Example. It is a longitudinal cross-sectional view of the Example of the computer apparatus concerning this invention. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is the perspective view of the computer apparatus which saw through the housing | casing. It is the perspective view of the computer apparatus which saw through the housing | casing and the structure frame board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Computer unit 11 Motherboard 12 Spacer 13 Holder board 13a Vent hole 13b Bending part 14 CPU
15 Heat Sink 16 Cooling Fan 17 Screw 18 Duct Space 30 Computer Device (Server)
31 Housing 31a Right side plate 31b Left side plate 31c Top plate 31d Back plate 31e Bottom plate 31f Front door 32 Structural frame board 32a Right side plate 32b Left side plate 32c Top plate 32d Second vent hole 33 Second duct space 34 Exhaust fan 35 Space 36 Device (DVD drive) or board 37 Air intake 38 legs

Claims (9)

A computer unit comprising: a motherboard on which a CPU and a cooling fan for air-cooling the CPU are mounted; and a holder board for holding the motherboard from the back side;
A computer unit characterized in that a duct space is formed between the motherboard and the holder board, and a vent hole is provided at a position of the holder board facing a cooling fan of the computer unit arranged adjacently. .   The computer unit according to claim 1, wherein an air passage cross-sectional area of the duct space is substantially equal to an area of the vent hole.   The computer unit according to claim 1, wherein a heat generating component is mounted on the back side of the motherboard.   The computer unit according to any one of claims 1 to 3 is installed in a housing, the duct space is communicated with an air inlet of the housing, and a space on the surface side of the motherboard is installed in the housing. A computer apparatus characterized by being connected to an exhaust fan.   5. The computer apparatus according to claim 4, wherein a plurality of the computer units are installed adjacent to each other in the casing so that the ventilation hole and the cooling fan face each other.   A second duct space communicating with the air inlet is formed between the housing and the structural frame board arranged inside the housing, and faces the cooling fan of the computer unit of the structural frame board The computer apparatus according to claim 5, wherein a second ventilation hole is provided at a position where the second ventilation hole is provided.   The computer apparatus according to claim 6, wherein a computer device or a board is installed in the second duct space. A computer apparatus comprising: a housing having an air inlet and an exhaust fan; and a motherboard installed in the housing and having a CPU and a cooling fan for air-cooling the CPU on the surface side,
A duct space communicating with the air inlet is formed between the housing and the structural frame board disposed inside the housing, and the structural frame board is positioned at a position facing the cooling fan of the motherboard. A computer apparatus, wherein a vent hole communicating with the duct space is provided, and the space on the surface side of the motherboard is communicated with the exhaust fan.   The computer apparatus according to claim 8, wherein a computer device or a board is installed in the duct space.

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