Board unit and electronic device

Patent metadata

Field	Value
Publication number	US-9433131-B2
Application number	US-201414153208-A
Country	US
Kind code	B2
Filing date	Jan 13, 2014
Priority date	Mar 18, 2013
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A board unit includes a board to have an object to be cooled, the object being implemented on the board, a baffle plate to be rotatably coupled to the board and to be displaced to a first rotary position to guide a cooling air, flowing from a first direction to the board, to the object to be cooled and a second rotary position to guide a cooling air, flowing from a second direction to the board, to the object to be cooled, and an arm to be movably attached to the board and also to be rotatably coupled to a rotary end of the baffle plate to displace the baffle plate to the first rotary position and the second rotary position with movement.

First claim

What is claimed is:

1. A board unit comprising:
a board to have an object to be cooled, the object being implemented on the board, the board configured to be capable of being oriented in first and second orientations;
a baffle plate rotatably coupled to the board and to be displaced to a first rotary position when the board is in the first orientation, to guide a first cooling air, to flow in a first direction with respect to the board, to the object to be cooled and a second rotary position when the board is in the second orientation, to guide a second cooling air, to flow in a second direction with respect to the board, to the object to be cooled; and
an arm to be movably attached to the board and also to be rotatably coupled to a rotary end of the baffle plate to displace the baffle plate to the first rotary position and the second rotary position with movement of the arm.

2. The board unit according to claim 1 , wherein the baffle plate extends or retracts in a direction of guiding the second cooling air or the first cooling air, respectively.

3. The board unit according to claim 1 , further comprising:
an elastic member to be locked by a first locking portion that is equipped in the board and a second locking portion that is equipped in the arm, to be in a free state when the baffle plate is in one of the first rotary position and the second rotary position, and to be elastically deformed when the baffle plate is in another of the first rotary position and the second rotary position.

4. The board unit according to claim 1 , wherein the baffle plate has a rotary plate that is rotatably coupled to the board, and a slide plate that is rotatably coupled to the arm and also slides in a direction of guiding the first cooling air or the second cooling air to the rotary plate.

5. The board unit according to claim 4 , wherein
the rotary plate has a concave container portion opening on a rotary end side of the baffle plate, and
the slide plate is taken in and out of the concave container portion.

6. The board unit according to claim 1 , wherein the baffle plate has a gap for component implementation against the board.

7. The board unit according to claim 1 , wherein the arm has a gap for ventilation against the board.

8. The board unit according to claim 1 , wherein the baffle plate is arranged along a lengthwise direction of the board when the baffle plate is in the first rotary position.

9. The board unit according to claim 1 , wherein the baffle plate is arranged obliquely relative to a lengthwise direction of the board when the baffle plate is in the second rotary position.

10. An electronic device comprising:
the board unit according to claim 1 ;
a fan unit to form a flow of the first cooling air from the first direction; and
a defining portion to define a position of the arm so as to position the baffle plate in the first rotary position.

11. The electronic device according to claim 10 , wherein the defining portion is a cut-off portion to insert one end of the arm therein.

12. The electronic device according to claim 10 , wherein the board unit is implemented in the electronic device to put the board to extendingly exist in the first orientation of the electronic device, the first orientation being a vertical orientation.

13. The electronic device according to claim 10 , wherein
the board unit is arranged to put a lengthwise direction of the board matching a height direction of the electronic device, and
the fan unit forms the flow of the first cooling air flowing from below the electronic device as the first direction.

14. The electronic device according to claim 10 , wherein a defined position of the arm is adjustable by modifying at least one of a length of the arm, a shape of the defining portion, or a position of the defining portion.

15. An electronic device comprising:
the board unit according to claim 1 ;
a fan unit to form a flow of the second cooling air from the second direction; and
a defining portion to define a position of the arm so as to put the baffle plate positioned in the second rotary position.

16. The electronic device according to claim 15 , wherein the defining portion is a receiving portion to abut on one end of the arm.

17. The electronic device according to claim 15 , wherein the board unit is implemented in the electronic device to put the board to extendingly exist in the second orientation of the electronic device, the second orientation being a horizontal orientation.

18. The electronic device according to claim 15 , further comprising:
a housing to hold the board; wherein
the board unit is arranged to put a lengthwise direction of the board to match a width direction of the electronic device,
the housing has a right front corner formed with an air inlet, and
the fan unit is arranged at a left rear corner inside the housing and also forms the flow of the second cooling air flowing from a right front of the electronic device introduced from the air inlet as the second cooling air from the second direction.

Assignees

• Fujitsu Ltd

Inventors

• Joko Kenji
• Matsumoto Hideaki
• Hayashi Mitsuaki
• Saito Osamu
• Izuno Takaharu
• Fujii Minoru

Classifications

• H05K7/20727 Primary

  within server blades for removing heat from heat source · CPC title

• H05K7/20736

  within cabinets for removing heat from server blades · CPC title

• H05K7/20145 Primary

  Means for directing air flow, e.g. ducts, deflectors, plenum or guides · CPC title