PORTABLE ELECTRONIC APPARATUS

• US 20090207569A1
• Filed: 01/22/2009
• Published: 08/20/2009
• Est. Priority Date: 02/14/2008
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: SUZUKI, Masumi, TSUNODA, Yosuke
• Granted Patent: US 7,969,739 B2
• Time in Patent Office: Days
• US Class Current: 361/704
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/162 changing, e.g. reversing, the face orientation of the screen with a two degrees of freedom mechanism, e.g. for folding into tablet PC like position or orienting towards the direction opposite to the user to show to a second user
• CPC Class Codes: G06F 1/1624 with sliding enclosures, e.g. sliding keyboard or display
• CPC Class Codes: G06F 1/203 for portable computers, e.g. for laptops
• CPC Class Codes: G06F 2200/203 Heat conductive hinge
• CPC Class Codes: H04M 1/0216 Foldable in one direction, i.e. using a one degree of freedom hinge

Abstract

A portable electronic apparatus includes a first unit, a second unit, and a hinge unit. The first unit includes a first housing, a heat generating component inside the first housing, a first heat diffusing member disposed inside the first housing and diffusing heat from the heat generating component, and a heat dissipating part dissipating heat diffused by the first heat diffusing member to the outside of the first housing. The second unit includes a second housing, a second heat diffusing member disposed inside the second housing and diffusing heat inside the second housing, and a heat receiving part conducting heat from the heat dissipating part to the second heat diffusing member upon the heat receiving part being in contact with the heat dissipating part.

Claims

1. A portable electronic apparatus comprising:

a first unit including

a first housing,

a heat generating component disposed inside the first housing,

a first heat diffusing member disposed inside the first housing and configured to diffuse heat inside the first housing, the heat being generated by the heat generating component, and

a heat dissipating part configured to dissipate heat diffused by the first heat diffusing member to the outside of the first housing;

a second unit including

a second housing,

a second heat diffusing member disposed inside the second housing and configured to diffuse heat inside the second housing, and

a heat receiving part configured to conduct heat from the heat dissipating part to the second heat diffusing member, upon the heat receiving part being in contact with the heat dissipating part;

a connection part configured to connect the first unit to the second unit, and to allow the second unit to be moved relative to the first unit; and

the heat dissipating part and the heat receiving part arranged to be brought into contact with each other upon the second unit being moved relative to the first unit.

2. The portable electronic apparatus according to claim 1, wherein the connection part is a hinge unit configured to allow the second unit to be opened and closed relative to the first unit, and the heat dissipating part and the heat receiving part are arranged to be brought into contact with each other upon the second unit being opened relative to the first unit, and the heat dissipating part and the heat receiving part are arranged to be separated from each other upon the second unit being closed relative to the first unit.

3. The portable electronic apparatus according to claim 2, further comprising an auxiliary mechanism configured to enhance adhesion between the heat dissipating part and the heat receiving part.

4. The portable electronic apparatus according to claim 3, wherein the auxiliary mechanism includes an elastic member configured to support the heat dissipating part, and

when the second unit is opened relative to the first unit, the heat dissipating part is brought into close contact with the heat receiving part by an elastic force of the elastic member.

5. The portable electronic apparatus according to claim 3, wherein the auxiliary mechanism includes a magnet in each of the heat dissipating part and the heat receiving part, and

the heat dissipating part is attracted to the heat receiving part by a magnetic force and brought into close contact with the heat receiving part.

6. The portable electronic apparatus according to claim 5, wherein the heat dissipating part is arranged to be movable toward the heat receiving part, and

when the second unit is opened, the heat dissipating part is brought into close contact with the heat receiving part by the magnetic force.

7. The portable electronic apparatus according to claim 3, wherein the auxiliary mechanism includes a protrusion disposed near the heat receiving part of the second unit and configured to press the heat dissipating part, and a pivot shaft disposed near the heat dissipating part of the first unit and configured to allow the heat dissipating part to pivot thereabout;

and

when the second unit is opened and a part of the heat dissipating part is pressed by the protrusion, the heat dissipating part pivots about the pivot shaft toward the heat receiving part and is brought into close contact with the heat receiving part.

8. The portable electronic apparatus according to claim 2, wherein the hinge unit has a pivot mechanism allowing the second unit to be opened and closed relative to the first unit, and a reversing mechanism allowing the second unit to rotate in a direction orthogonal to the opening and closing direction of the second unit;

and

the heat dissipating part and the heat receiving part are arranged to be in contact with each other when the second unit is reversed and closed relative to the first unit.

9. The portable electronic apparatus according to claim 1, further comprising a shield case configured to cover the heat generating component,

wherein the first heat diffusing member is attached to the shield case so that heat is conducted to the heat dissipating part.

10. The portable electronic apparatus according to claim 1, wherein a heat-conductive protecting member is attached to one or both of the heat dissipating part and the heat receiving part.

11. The portable electronic apparatus according to claim 1, wherein the connection part is a slide rail configured to allow the second unit to slide on the first unit, and the heat receiving part is arranged to be in contact with the heat dissipating part upon a slide width of the second unit being a predetermined width.

12. The portable electronic apparatus according to claim 11, wherein the heat receiving part is arranged to be in contact with the heat dissipating part when the slide width of the second unit is zero width.

13. The portable electronic apparatus according to claim 11, wherein the heat receiving part is arranged to be in contact with the heat dissipating part when the slide width of the second unit is a maximum width.

14. The portable electronic apparatus according to claim 11, wherein the heat receiving part is arranged to be in contact with the heat dissipating part when the slide width of the second unit is some width other than zero width and a maximum width.