JP2014085960A - Information processing device - Google Patents

Abstract

An information processing apparatus capable of protecting a wiring cable arranged on a circuit board is provided.
An information processing apparatus (10) includes a wiring cable (60) connected to a circuit board (60) along an outer periphery of a cooling fan unit (42) at a portion protruding from the circuit board (50) toward the keyboard (20). 50) and the end of the rib (70) of the upper housing (16) is in contact with the cooling fan unit (42), and the height of the rib (70) It is higher than the height of the wiring cable (60) at the part protruding from the unit (42) to the keyboard (20). Thereby, bending of a keyboard (20) can be suppressed and the wiring cable (60) arrange | positioned on a circuit board (50) can be protected.
[Selection] Figure 3

Description

  The present invention relates to an information processing apparatus such as a notebook PC (Personal Computer).

  In recent years, information processing apparatuses such as notebook PCs have been devised to improve operation feeling as multifunctions and high-speed processing progress. As a device for improving the operation feeling, for example, the feeling of pressing a key on a keyboard is also regarded as important.

  FIG. 6 shows the appearance of a notebook PC which is an example of a conventional information processing apparatus. As shown in FIG. 6, the notebook PC includes a first casing 101 that includes a keyboard 103 and a second casing 102 that includes a liquid crystal display 104. The first housing 101 and the second housing 102 are rotatably coupled by a hinge mechanism.

  FIG. 7 is a cross-sectional view taken along the alternate long and short dash line X in FIG. 6, but is a partial cross-sectional view for clarity of illustration. In FIG. 7, a circuit board such as a motherboard and an electronic component such as a CPU (Central Processing Unit) disposed in the first housing 101 are not shown. As shown in FIG. 7, the first housing 101 includes an upper housing 101a and a lower housing 101b. The keyboard 103 is disposed on the upper housing 101a. The upper housing 101a on which the keyboard 103 is arranged is supported by a part of bosses and ribs (not shown) formed on the lower housing 101b.

  Notebook PCs are often made lighter by forming a thin casing. However, if the upper casing 101a shown in FIG. 7 is formed thin, when the operator presses the keyboard 103 supported by the upper casing 101a with a finger in the direction indicated by the arrow Y, the keyboard is positioned below the keyboard 103. Since there is no member supporting 103 and the upper casing 101a, the upper casing 101a is bent and sinks together with the keyboard 103 as shown in FIG. Therefore, even if the individual keys constituting the keyboard 103 have a click feeling, the upper casing 101a bends and sinks during key operation, so that the key click feeling is impaired.

  In addition, since the strength of the upper housing 101a is reduced as the thickness of the upper housing 101a is reduced, if a strong pressing force is applied to the surface, the upper housing 101a may bend and various parts arranged inside the housing may be damaged. There is sex.

  For this reason, in Patent Document 1 (Japanese Patent Laid-Open No. 2009-80800), as shown in FIG. 9, the lower casing 101b includes a wall portion 113d erected on the inner bottom surface 112d, and a wall portion. 113d, and a support surface 113a formed in a direction substantially parallel to the inner bottom surface 112d from the wall 113d, and the support surface 113a is disposed at a position where the back surface of the operation surface of the keyboard 103 can be supported. The disclosed information processing apparatus is disclosed. In Patent Document 1, since the support surface 113a of the support portion 113 is disposed at a position where the back surface of the operation surface of the keyboard 103 can be supported, bending of the keyboard 103 is suppressed and the operation feeling of the keys of the keyboard 103 is reduced. It is possible to prevent the deterioration. Further, various parts arranged in the housing are prevented from being damaged. 101a is an upper casing, 105 is a battery, 106 is a drive unit, and the battery 105 and the drive unit 106 are detachably disposed in a recess 113c formed in the support 113. A circuit board on which various electronic components such as a CPU and a memory are mounted is fixed to the bottom surface of the lower housing 101b.

JP 2009-80800 A

  However, when the support part 113 is provided on the upper surface of the lower housing 101b as in Patent Document 1, the information processing apparatus becomes thick.

  Note that a circuit board such as a mother board is disposed over a wide range in a casing of a normal information processing apparatus. In addition, a large number of electronic components are mounted on the circuit board, and wiring cables are arranged. Among these electronic components, the CPU and IC chip have been improved in performance and the amount of generated heat has increased. Therefore, for example, a cooling fan unit for cooling the CPU is provided in the housing. The cooling fan unit is supported outside the circuit board in a floating state. The floating state means a state in which the component floats with respect to the surroundings.

  Further, in order to reduce the bending of the keyboard when a key on the keyboard is pressed, for example, a sheet metal is provided on the bottom surface of the keyboard. In addition, a plurality of ribs are provided on the circuit board without providing a sheet metal, and the keyboard is supported from below.

  However, providing a sheet metal on the bottom surface of the keyboard is not preferable from the viewpoint of reducing the weight and cost of the information processing apparatus.

  In addition, when providing a plurality of ribs on the circuit board without providing a sheet metal, in order to secure an area for a large number of electronic components mounted on the circuit board and an area for a wiring cable disposed on the circuit board, The area in which the rib can be provided is limited, and the keyboard may not be stably supported from below using the rib. If the rib cannot be used to stably support the keyboard from below, the keyboard will bend each time the keyboard is pressed, and the key will not be comfortable to press. Further, the keyboard comes into contact with electronic components and wiring cables under the keyboard, and depending on the contact state, the electronic components and wiring cables may be adversely affected. In particular, the wiring cable protrudes closer to the keyboard than the electronic components, and the wiring cable connected to the display side such as a liquid crystal panel protrudes closer to the keyboard than the cooling fan unit, making it easier to contact the keyboard. ing. For this reason, it is necessary to prevent the keyboard from coming into contact with the wiring cable.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an information processing apparatus capable of protecting a wiring cable disposed on a circuit board.

  In order to achieve this object, the present invention has the following features.

<Information processing device>
An information processing apparatus according to the present invention includes:
A casing configured by joining an upper casing and a lower casing;
A circuit board on which electronic components are mounted, a cooling fan unit that cools the electronic components, a wiring cable disposed on the circuit board,
An information processing apparatus having a keyboard provided on the upper housing,
The circuit board and the cooling fan unit are located under the keyboard so as to face the keyboard, and the cooling fan unit protrudes toward the keyboard side than the circuit board, and The wiring cable is arranged on the circuit board along the outer periphery of the cooling fan unit in a portion protruding to the keyboard side, and the wiring cable protrudes to the keyboard side from the cooling fan unit,
The upper housing has a rib protruding toward the cooling fan unit in a region where the cooling fan unit is located, and the height of the rib is a portion protruding from the cooling fan unit toward the keyboard The height of the wiring cable is higher and the end of the rib is in contact with the cooling fan unit.

  According to the present invention, the wiring cable is arranged on the circuit board along the outer periphery of the portion of the cooling fan unit that protrudes toward the keyboard from the circuit board, and the end of the rib of the upper housing is the cooling fan. Since the height of the rib that is in contact with the unit is higher than the height of the wiring cable that protrudes from the cooling fan unit to the keyboard side, the bending of the keyboard is suppressed, and the wiring arranged on the circuit board The cable can be protected.

1 is a diagram illustrating a configuration example of a notebook PC 10 of the present embodiment. FIG. 3 is a diagram showing an internal structure of a lower housing 15 from which an upper housing 16 is removed. It is AA sectional drawing of notebook PC10 shown in FIG. 4 is a view showing a structure around a cooling fan unit 42. 3 is a diagram illustrating a configuration example of a back surface side of an upper housing 16. FIG. It is the 1st figure which shows the structural example of the conventional notebook PC. It is a 2nd figure which shows the structural example of the conventional notebook PC. It is a 3rd figure which shows the structural example of the conventional notebook PC. FIG. 11 is a diagram illustrating a configuration example of a notebook PC disclosed in Patent Document 1.

(Outline of Embodiment of Information Processing Device 10 According to the Present Invention)
First, an overview of an embodiment of an information processing apparatus 10 according to the present invention will be described with reference to FIGS. 1 and 3. FIG. 1 is a diagram showing a configuration example of an information processing apparatus 10 according to the present invention, and FIG. 3 is a cross-sectional view of the information processing apparatus 10 shown in FIG.

  An information processing apparatus 10 according to the present invention includes a casing 14 formed by joining an upper casing 16 and a lower casing 15, and a circuit board 50 provided in the casing 14 and mounted with electronic components. The information processing apparatus 10 includes a cooling fan unit 42 that cools electronic components, a wiring cable 60 disposed on the circuit board 50, and a keyboard 20 provided on the upper housing 16.

  In the information processing apparatus 10 according to the present invention, the circuit board 50 and the cooling fan unit 42 are located under the keyboard 20 so as to face the keyboard 20, and the cooling fan unit 42 is closer to the keyboard 20 than the circuit board 50. The wiring cable 60 is arranged on the circuit board 50 along the outer periphery of the cooling fan unit 42 that protrudes from the circuit board 50 to the keyboard 20 side. The wiring cable 60 is connected to the cooling fan unit 42 from the cooling fan unit 42. Also protrudes to the keyboard 20 side. The upper housing 16 has a rib 70 protruding toward the cooling fan unit 42 in an area where the cooling fan unit 42 is located. The height of the rib 70 is from the cooling fan unit 42 to the keyboard 20 side. The protruding portion is higher than the height of the wiring cable 60, and the end of the rib 70 is in contact with the cooling fan unit 42.

  In the information processing apparatus 10 according to the present invention, a wiring cable 60 is disposed on the circuit board 50 along the outer periphery of the cooling fan unit 42 at a portion protruding from the circuit board 50 to the keyboard 20 side. The end of the rib 70 of the body 16 is in contact with the cooling fan unit 42, and the height of the rib 70 is higher than the height of the wiring cable 60 at the portion protruding from the cooling fan unit 42 to the keyboard 20 side. The bending of the keyboard 20 can be suppressed, and the wiring cable 60 disposed on the circuit board 50 can be protected. Hereinafter, the information processing apparatus 10 of the present embodiment will be described in detail with reference to the accompanying drawings. In the following embodiment, a notebook PC 10 will be described as an example of the information processing apparatus 10.

<Configuration example of notebook PC10>
A configuration example of the notebook PC 10 of the present embodiment will be described with reference to FIGS.

  FIG. 1 is a diagram illustrating a configuration example of the notebook PC 10 according to the present embodiment. FIG. 2 is a diagram showing an internal structure of the lower housing 15 from which the upper housing 16 is removed. 3 is a cross-sectional view taken along the line AA of the notebook PC 10 shown in FIG. FIG. 4 is a view showing a structure around the cooling fan unit 42. FIG. 5 is a diagram illustrating a configuration example of the back surface side of the upper housing 16.

  The notebook PC 10 according to the present embodiment includes a device main unit 12 and a display unit 13 supported by the device main unit 12. The device body unit 12 has a housing 14. The casing 14 includes a lower casing 15 having a rectangular bottom wall and an upper casing 16 having a rectangular upper wall, and is configured by joining the lower casing 15 and the upper casing 16 together. doing. The housing 14 is made of, for example, a synthetic resin.

  The upper casing 16 is formed with a rectangular groove 19 (see FIG. 3) over the center and rear of the upper casing 16, and a keyboard 20 is provided on the groove 19. A palm rest 22 is provided at the front of the upper housing 16, and an operation unit 24 for operating a pointing device is provided at the center of the palm rest 22. The palm rest 22 is provided so as to be removable from the upper housing 16. A drive unit (not shown) is provided in the housing 14 under the palm rest 22.

  A pair of hinge portions 28 are provided at the rear end of the upper housing 16 so as to be separated from each other in the longitudinal direction of the housing 14, and the device body unit 12 and the display unit 13 are rotated via the hinge portions 28. It is connected as possible. A battery 31 is provided at the rear end of the upper housing 16. The battery 31 is detachable from the upper housing 16.

  The display unit 13 includes a flat rectangular housing 30 and a liquid crystal display 32 accommodated in the housing 30.

  The notebook PC 10 of the present embodiment exposes the closed position where the display unit 13 is tilted so as to cover the upper surface of the housing 14 including the palm rest 22 and the keyboard 20 from above, and the upper surface of the housing 14 and the liquid crystal display 32. Thus, it can rotate over the open position where it stands up.

  As shown in FIG. 2 and FIG. 3, a circuit board 50 representing a motherboard, a cooling fan unit 42, a wiring cable 60, a drive unit (not shown), various connectors ( Etc.) are arranged. The circuit board 50 is fixed by screws to a plurality of bosses (not shown) that are erected on the bottom wall 15a of the lower casing 15, and is opposed substantially parallel to the bottom surface of the lower casing 15 with a gap. The circuit board 50 includes an area under the keyboard 20 and is provided over the lower casing 15. A large number of electronic components, connectors, and the like are mounted on the upper and lower surfaces of the circuit board 50. In the notebook PC 10 of the present embodiment, a memory board 40 that is a DIMM (Dual Inline Memory Module) is mounted on the upper surface of the circuit board 50. The memory board 40 is mounted on the circuit board 50 so as to be located at the rear center of the lower housing 15 and occupies a predetermined area of the circuit board 50.

  The upper housing 16 is formed with a rectangular groove 19 extending from the center and rear of the upper housing 16, and the groove 19 faces the circuit board 50 and the cooling fan unit 42. A keyboard 20 is disposed on the groove 19. For this reason, the circuit board 50 and the cooling fan unit 42 are located under the keyboard 20. In addition, since the memory board 40 is mounted on the circuit board 50, the memory board 40 is located under the keyboard 20. The upper housing 16 is supported by the circuit board 50 by being screwed to the circuit board 50 at a plurality of locations except for the part where the cooling fan unit 42, the memory board 40, the wiring cable 60, and various electronic components are located.

  The circuit board 50 is mounted with a CPU (not shown) that generates a large amount of heat. A cooling fan unit 42 for cooling the CPU is disposed outside the circuit board 50 and in the vicinity of the side wall of the housing 14. As shown in FIG. 3, the cooling fan unit 42 includes a fan 43 and a fan case 41 surrounding the fan 43. The fan case 41 has a top cover 46a and a lower cover 46b facing each other with a gap, and a side frame 44 connected to the top cover 46a and the lower cover 46b along the outer periphery of the top cover 46a and the lower cover 46b. Is configured. A fan 43 and a fan motor 48 are provided between the top cover 46a and the lower cover 46b, and the fan motor 48 is supported by the lower cover 46b, for example. A suction port 46c is formed in the top cover 46a. In addition, a large number of heat radiation fins 49 functioning as heat radiation members are provided at the exhaust port of the fan case 41.

  The cooling fan unit 42 is disposed so that the rotation axis of the fan 47 is substantially orthogonal to the bottom wall 15a of the lower housing 15. The top cover 46a is opposed to the groove portion 19 of the upper housing 16 in a substantially parallel manner with a gap, and the lower cover 46b is opposed to the bottom wall 15a in a substantially parallel manner with a gap. The exhaust port of the fan case 41 and the radiating fins 49 are opposed to the exhaust port 51 formed on the side wall of the housing 14.

  The periphery of the cooling fan unit 42 is not in contact with the inner surface of the housing 14 and the circuit board 50, and the cooling fan unit 42 is supported in the housing 14 in a floating state, that is, in a floating state. Has been. However, the floating state is an example, and the cooling fan unit 42 can be supported in the housing 14 in an arbitrary state.

  The cooling fan unit 42 protrudes to the keyboard 20 side from the circuit board 50, and the wiring cable 60 is disposed on the circuit board 50 along the side frame 44 of the cooling fan unit 42 protruding to the keyboard 20 side. . The wiring cable 60 is a control line that connects the device main unit 12 and the display unit 13, and is configured by covering the periphery of the control line with rubber. The notebook PC 10 of the present embodiment transmits and receives information between the device main unit 12 and the display unit 13 via the wiring cable 60. The wiring cable 60 is connected to the display unit 13 via the hinge portion 28. The notebook PC 10 of the present embodiment is configured by arranging two wiring cables 60 on the circuit board 50 along the side frame 44 of the cooling fan unit 42.

  As shown in FIG. 3, the wiring cable 60 disposed on the circuit board 50 protrudes closer to the keyboard 20 than the cooling fan unit 42, so that it can easily come into contact with the upper housing 16.

  In the notebook PC 10 of the present embodiment, the wiring cable is arranged along the outer shape of the cooling fan unit 42 in order to prevent the upper housing 16 from contacting the wiring cable 60 due to the bending of the upper housing 16 provided with the keyboard 20. 60 is disposed on the circuit board 50, and in the region where the cooling fan unit 42 is located, a mountain-shaped rib 70 protruding from the upper housing 16 toward the cooling fan unit 42 is provided, and the rib 70 is provided as the cooling fan unit. The upper casing 16 is in contact with the wiring cable 60 so as not to contact the wiring cable 60. However, the height of the rib 70 needs to be formed higher than the height of the portion of the wiring cable 60 protruding from the cooling fan unit 42 to the keyboard 20 side. Thereby, the upper casing 16 is supported by the rib 70 and the cooling fan unit 42, and even if the upper casing 16 is bent, the upper casing 16 can be prevented from coming into contact with the wiring cable 60.

  Since the fan 43, the fan motor 48, and the suction port 46c are provided in the center of the cooling fan unit 42, the rib 70 cannot be brought into contact with the vicinity of the center of the cooling fan unit 42. Therefore, as shown in FIG. 5, the rib 70 is provided on the upper housing 16 along the outer shape of the cooling fan unit 42, and the rib 70 is formed on the cooling fan unit 42 along the outer shape of the cooling fan unit 42. It is trying to contact. Accordingly, it is possible to make it difficult for the upper casing 16 located on the cooling fan unit 42 to be bent without hindering the function of the cooling fan unit 42. FIG. 5 is a diagram illustrating a configuration example of the back surface side of the upper housing 16. 70 is a mountain-shaped rib, 80 is a plate-shaped rib, and 71 is a screw hole. In the upper casing 16 of this embodiment, screws are inserted into the screw holes 71, and the upper casing 16 is connected to the circuit board 50 and the lower casing 15. The rib 70 shown in FIG. 5 is provided so that the top of the rib 70 contacts the cooling fan unit 42 along the outer shape of the cooling fan unit 42 when the upper casing 16 and the lower casing 15 are joined. ing. The rib 80 is provided so that the end of the rib 80 abuts the circuit board 50 along the periphery of the memory substrate 40 when the upper housing 16 and the lower housing 15 are joined.

  As shown in FIG. 3, the rib 70 has a mountain shape protruding from the upper housing 16 toward the cooling fan unit 42, and the mountain-like top of the rib 70 is cooled as shown in FIG. It continues along the external shape of the fan unit 42, and the top of the rib 70 is in contact with the cooling fan unit 42 as shown in FIG. Therefore, the rib 70 can be stably brought into contact with the cooling fan unit 42, and the upper housing 16 positioned on the cooling fan unit 42 can be made difficult to bend. Further, since the ribs 70 are connected, the rigidity of the ribs 70 can be improved. Further, the top of the rib 70 has a flat surface shape, and the flat surface abuts on the cooling fan unit 42, so that the rib 70 can abut against the cooling fan unit 42 stably. Specifically, the top of the rib 70 comes into contact with the outer shape of the top cover 46a of the fan case 41. That is, the outer shape of the cooling fan unit 42 means the outer shape of the top cover 46a.

  The upper casing 16 of the present embodiment is provided with two mountain-shaped ribs 70, and the two ribs 70 are provided along the outer shape of the cooling fan unit 42. The two ribs 70 are provided on the circuit board 50 side in the outer shape of the cooling fan unit 42. Of the outer shape of the cooling fan unit 42, the upper housing 16 and the lower housing 15 are joined to the side wall side of the housing 14, so that the upper housing 16 has a predetermined strength and the upper housing 16 It is difficult to bend. However, if the upper case 16 is not supported on the circuit board 50 side, the upper case 16 is easily bent. For this reason, of the outer shape of the cooling fan unit 42, two ribs 70 are provided on the circuit board 50 side along the outer shape of the cooling fan unit 42. Further, the two ribs 70 are configured in a straight line shape, and the two ribs 70 having the straight line shape are provided along the outer shape of the cooling fan unit 42. Further, a gap is provided between the two ribs 70 so as to ensure a gas flow path.

  Further, the notebook PC 10 of the present embodiment is a board that stands up from the upper housing 16 toward the circuit board 50 around the area where the memory board 40 is located in order to protect the memory board 40 mounted on the circuit board 50. A rib 80 is provided, and a part of the rib 80 abuts on the circuit board 50 so that the upper housing 16 does not contact the memory board 40. However, the height of the rib 80 needs to be formed higher than the height of the memory substrate 40 protruding from the circuit board 50 to the keyboard 20 side. Thus, the upper casing 16 is supported by the rib 80 and the circuit board 50, and even if the upper casing 16 above the memory board 40 is bent, the upper casing 16 is prevented from coming into contact with the memory board 40. be able to. However, since the plate-like rib 80 is undulated, the height of the highest portion of the rib 80 is higher than the height of the memory board 40 protruding from the circuit board 50 to the keyboard 20 side.

  Since the memory board 40 is configured to have a certain size, if the memory board 40 is mounted on the circuit board 50, a large area on the circuit board 50 is occupied. As a result, the rib 80 cannot be brought into contact with the region where the memory substrate 40 is mounted, and the upper housing 16 above the memory substrate 40 is easily bent. Therefore, as shown in FIG. 5, the rib 80 is provided in the upper housing 16 along the outer shape of the memory substrate 40, and the rib 80 abuts on the circuit board 50 along the outer shape of the memory substrate 40. I am doing so. Accordingly, it is possible to make it difficult for the upper housing 16 located on the memory substrate 40 to bend without causing any trouble in the function of the memory substrate 40.

  In the present embodiment, the upper casing 16 is provided with a plate-like rib 80, and a part of the plate-like rib 80 is brought into contact with the circuit board 50, so that many electronic components are mounted. Even in the circuit board 50, the rib 80 can be brought into contact with the circuit board 50 to support the upper casing 16 above the memory board 40. In addition, since a part of the plate-like rib 80 is in contact with the circuit board 50, the contact area of the rib 80 in contact with the circuit board 50 can be reduced.

  Further, since the plate-like ribs 80 are continuously provided on the upper housing 16, the rigidity of the plate-like ribs 80 can be improved. That is, the plate-like rib 80 of the present embodiment has a cross-sectional area of a portion connected to the upper housing 16 rather than an area (contact area) of a portion where the end of the rib 80 is in contact with the circuit board 50. Since it is configured in a large shape, even if it is a plate-like rib 80, the rigidity of the rib 80 can be improved.

  Further, plate-like ribs 80 are provided along the outer shape of the memory board 40 and are provided in the upper housing 16, and a part of the end of the rib 80 abuts on the circuit board 50, so that the memory board The circumference of 40 is not covered with ribs 80. For this reason, the heat generated in the memory substrate 40 can be released to the surroundings, and the heat can be prevented from being trapped around the memory substrate 40. That is, in this embodiment, since a part of the plate-like rib 80 is configured to abut on the circuit board 50, an opening is formed around the memory board 40, and the memory board 40 is formed from the opening. It is possible to release the heat generated in step 1 to the surroundings and avoid the heat from being trapped around the memory substrate 40. Since the plate-like rib 80 is undulated, the opening is formed at the undulated portion. The abutting portion that abuts on the circuit board 50 in the shape of the rib 80 is 81 shown in FIG. 5, and is configured at the highest height among the end portions of the rib 80. The opening is 82 shown in FIG. 5, and is configured by a portion of the end of the rib 80 that does not contact the circuit board 50.

  The rib 80 is preferably configured such that a contact portion 81 that contacts a part of the end portion of the rib 80 on the circuit board 50 is opposed to the memory board 40. As a result, the ribs 80 abut on the circuit board 50 at positions on both sides of the memory board 40 interposed therebetween, so that the upper casing 16 above the memory board 40 is stably supported and the upper casing 16 is bent. Can be difficult.

  In this embodiment, a gap is provided between the two mountain-shaped ribs 70, but a plate-like rib 80 located in the gap is brought into contact with the circuit board 50. As a result, the upper housing 16 is supported by the mountain-shaped rib 70, the plate-shaped rib 80, and the mountain-shaped rib 70 in the short direction of the upper housing 16, and thus the upper housing 16 is difficult to bend. can do.

<Operation and effect of notebook PC 10 of this embodiment>
Thus, in the notebook PC 10 of the present embodiment, the wiring cable 60 is disposed on the circuit board 50 along the outer periphery of the portion of the cooling fan unit 42 that protrudes toward the keyboard 20 from the circuit board 50. The ends of the mountain-shaped ribs 70 formed on the upper housing 16 are in contact with the cooling fan unit 42, and the height of the ribs 70 extends from the cooling fan unit 42 to the keyboard 20 side. Since it is higher than the height of the cable 60, it is possible to suppress the bending of the upper casing 16 in which the keyboard 20 is arranged, and to prevent the upper casing 16 from contacting the wiring cable 60. As a result, the wiring cable 60 arranged on the circuit board 50 can be protected.

  Further, a part of the end of the plate-like rib 80 formed on the upper housing 16 is in contact with the circuit board 50, and the height of the rib 80 protrudes from the circuit board 50 to the keyboard 20 side. Since the height of the memory board 40 is higher than the above, the bending of the upper casing 16 on which the keyboard 20 is disposed can be suppressed, and the upper casing 16 can be prevented from contacting the memory board 40. As a result, the memory board 40 mounted on the circuit board 50 can be protected. Further, a part of the end of the rib 80 is in contact with the circuit board 50 so that the entire periphery of the memory board 40 is not covered with the rib 80, so the heat generated in the memory board 40 is released to the surroundings, It is possible to avoid the accumulation of heat around the memory substrate 40.

  The above-described embodiment is a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiment alone, and various modifications are made without departing from the gist of the present invention. Implementation is possible.

10 Notebook PC (an example of an information processing device)
DESCRIPTION OF SYMBOLS 12 Device main body unit 13 Display unit 14 Housing | casing 15 Lower housing | casing 16 Upper housing | casing 19 Groove part 20 Keyboard 22 Palm rest 24 Operation part 28 Hinge part 31 Battery 40 Memory board 41 Fan case 42 Cooling fan unit 43 Fan 44 Side frame 46a Top cover 46b Lower cover 46c Suction port 49 Radiation fin 50 Circuit board 51 Exhaust port 60 Wiring cable 70 Rib 80 Rib

Claims (4)

A casing configured by joining an upper casing and a lower casing;
A circuit board on which electronic components are mounted, a cooling fan unit that cools the electronic components, a wiring cable disposed on the circuit board,
An information processing apparatus having a keyboard provided on the upper housing,
The circuit board and the cooling fan unit are located under the keyboard so as to face the keyboard, and the cooling fan unit protrudes toward the keyboard side than the circuit board, and The wiring cable is arranged on the circuit board along the outer periphery of the cooling fan unit in a portion protruding to the keyboard side, and the wiring cable protrudes to the keyboard side from the cooling fan unit,
The upper housing has a rib protruding toward the cooling fan unit in a region where the cooling fan unit is located, and the height of the rib is a portion protruding from the cooling fan unit toward the keyboard An information processing apparatus, wherein the height of the wiring cable is higher and the end of the rib is in contact with the cooling fan unit.   The information processing apparatus according to claim 1, wherein the rib is provided in the upper housing along an outer shape of the cooling fan unit.   The rib has a mountain shape protruding from the upper housing toward the cooling fan unit, and the mountain-shaped top is continuous along the outer shape of the cooling fan unit, and the top is The information processing apparatus according to claim 2, wherein the information processing apparatus is in contact with the cooling fan unit.   The information processing apparatus according to claim 3, wherein the top has a flat surface shape.

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