JP2003131759A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict temperature rising of a part, such as a palm rest, where the human body touches in an electronic equipment, which frame is composed of high thermal conductivity material, and which has heat generating parts like a CPU arranged inside. SOLUTION: The electronic equipment includes a palm rest 4 formed on a surface of a frame 1, an inlet 5 formed contiguous to the palm rest 4 on the surface of the frame 1, a vent formed apart from the palm rest 4 in a wall of the frame 1, a heat generating part 6 arranged inside the frame 1, and cooling means 7 for guiding the open air taken in from the inlet 5 to the heat generating part 6 and to the vent, the air passing inside the frame 1 just under the palm rest 4.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electronic device.

[0002]

2. Description of the Related Art At present, electronic devices such as personal computers can be opened / closed in a main body housing in which a basic component such as a CPU is built in and a keyboard is arranged on the surface thereof from the viewpoint of portability and mounting space. A notebook type model with a display is attached to the mainstream, and even desktop type models have CPUs and other key components that were previously housed in a separate housing from the keyboard. It is designed to be housed in a keyboard case where the keyboard is arranged to reduce the required space.

[0003]

Conventionally, since the main body housing or the keyboard housing (hereinafter collectively referred to as a housing) is made of a resin having a low thermal conductivity,
Even if a heat-generating component such as a CPU exists in the housing, a vent hole for heat dissipation is simply provided on the side surface of the housing to operate a keyboard or pointer means such as a mouse pad arranged near the keyboard. It was difficult for the palm rest part of the housing surface, which comes into contact with the user's palm, to become hot.

However, in recent years, as the performance of CPUs and the like has increased, the amount of heat generated by them has also increased, so that the heat dissipation characteristics have become more necessary, and the electronic equipment itself has become smaller (specifically, slimmer). Due to the need to improve the strength of the casing, a metal having a high thermal conductivity such as a magnesium alloy has come to be used as the casing material.

When such a metal casing is used, the palm rest portion is likely to have a higher temperature than in the conventional case, which may cause an uncomfortable feeling to the user. Further, as the slimmer structure is adopted, the side surface of the casing is changed as in the conventional case. There was a problem that sufficient heat dissipation would be difficult if only the ventilation holes were provided.

[0006]

The present invention has been made in view of the above problems, and is characterized in that ventilation holes are formed in an array on the surface of a housing in the vicinity of a palm rest.

[0007]

FIG. 1 is a top view showing a keyboard housing 1 of an electronic device to which the present invention is applied.

A keyboard 2 is provided at a substantially central portion of the surface of the housing 1.
Is arranged, and the pointer means 3 made of, for example, a mouse pad is arranged in the center of the front side of the palm rest 4. The left and right sides of the pointer means 3 are palm rests 4 on which the palm of the user can be placed. On the surface of the casing 1 around the pointer means 3, a vent hole 5 formed along the outer circumference of the pointer means 3 is formed by a plurality of slits for communicating the inside and outside of the casing 1.

Each slit 51 forming the above-mentioned ventilation hole 5
2 is inclined as shown in the section taken along the line AA ′ in FIG. 2, so that the inside of the housing 1 cannot be seen through each slit 51.

By forming the ventilation holes 5 along the outer circumference of the pointer means 3 as described above, it can be regarded as a decoration on the surface of the housing 1, and the inside of the housing 1 is exposed through the slits 51. By forming it so that it cannot be seen through, the user does not have to be aware of the ventilation hole, and the design is excellent.

In this embodiment, the ventilation hole 5 is composed of a plurality of slits 51. However, any shape such as a plurality of small holes or a combination of slits and small holes may be used as long as the ventilation effect can be achieved. It goes without saying.

The vicinity of the pointer means 3 (palm rest 4
A CPU 6 is arranged in the housing 1 (in the vicinity), and
A fan 7 is arranged close to the left side wall of the housing 1 close to the CPU 6. Further, an exhaust slit (not shown) is formed on the left side wall of the housing 1 adjacent to the fan 7.

The fan 7 creates a flow of air along a ventilation path formed in the housing 1 to cause the CPU 6 to operate.
It functions as a cooling unit for cooling the like. Specifically, when the fan 7 is driven, the outside air taken into the housing 1 through the ventilation hole 5 is guided to the CPU 6 through the inside of the housing 1 immediately below the palm rest 4, and the CPU 6 Is heated by the heat generated by the above, and then exhausted from the exhaust slit to the left side wall of the housing 1 close to the fan 7.

Therefore, since the palm rest 4 is cooled by the unheated outside air, the temperature rise due to the heat generation of the CPU 6 can be suppressed. According to the experiment, it was confirmed that when the fan 7 is driven, the temperature rise of the palm rest 4 directly above the CPU 6 can be suppressed by several degrees as compared with the case where the fan 7 is not driven.

[0015]

According to the present invention, it is possible to suppress an increase in temperature of a portion (palm rest) on the surface of a housing containing a heat-generating component, which is in contact with a user's body, and to realize an electronic device excellent in design. .

[Brief description of drawings]

FIG. 1 is a top view showing a main part of an electronic device to which the present invention is applied.

FIG. 2 is a partial cross-sectional view showing a main part of this embodiment.

[Explanation of symbols]

1 case 2 keyboard 3 Pointer means 4 palm rest 5 ventilation holes 6 CPU 7 fans

Continued front page    (72) Inventor Keiichiro Iwasa             3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori             Sanyo Electric Co., Ltd. F-term (reference) 5E322 BA01 EA11

Claims (7)

[Claims] 1. An electronic device, characterized in that ventilation holes are aligned and formed on the surface of the casing so as to surround the pointer means mounted on the surface of the casing. 2. The electronic device according to claim 1, wherein a heat-generating component is arranged in the housing near the pointer means. 3. The electronic device according to claim 1, wherein the vent hole is an intake hole. 4. An electronic device, characterized in that vent holes are formed in an array in the vicinity of a palm rest on a surface of a casing. 5. The electronic device according to claim 4, wherein a heat-generating component is arranged in the housing near the palm rest. 6. An electronic device according to claim 4, wherein the ventilation hole is an intake hole. 7. A palm rest formed on the surface of the housing,
Intake holes formed in the vicinity of the palm rest on the surface of the housing, exhaust holes formed in the wall surface of the housing separated from the palm rest, heat-generating components arranged inside the housing, and taken in through the intake holes. An electronic device comprising: a cooling unit that guides outside air to the heat generating component and the exhaust hole through the inside of the housing immediately below the palm rest.