Coolant supply unit, cooling unit, and electronic device

Patent metadata

Field	Value
Publication number	US-9603285-B2
Application number	US-201313953838-A
Country	US
Kind code	B2
Filing date	Jul 30, 2013
Priority date	Sep 7, 2012
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A coolant supply unit includes a plurality of pumps, a casing that includes a coolant inlet port, a plurality of branch ports that respectively convey coolant to the plurality of pumps, a plurality of flow merging ports through which the coolant from the plurality of pumps merges, and a coolant outlet port; and a separating wall that is provided inside the casing and that separates the inside of the casing into a distribution chamber that is in communication with the inlet port and the branch ports, and a flow merging chamber that is in communication with the flow merging ports and the outlet port.

First claim

What is claimed is:

1. A coolant supply unit comprising:
a plurality of pumps;
a casing that includes a coolant inlet port, a plurality of branch ports that respectively convey coolant to the plurality of pumps, a plurality of flow merging ports through which the coolant from the plurality of pumps merges, and a coolant outlet port; and
a separating wall that is provided inside the casing, has a planar shape, is mounted between a pair of opposing side walls in a width direction of the casing, and separates the inside of the casing into a distribution chamber that is in communication with the inlet port and the branch ports, and a flow merging chamber that is in communication with the flow merging ports and the outlet port.

2. The coolant supply unit of claim 1 , comprising:
a first enlarged portion with a flow path cross-section area widened in a height direction at a location in the distribution chamber portion where the inlet port is provided; and
a second enlarged portion with a flow path cross-section area widened in a height direction at a location in the flow merging chamber portion where the outlet port is provided.

3. The coolant supply unit of claim 2 , wherein the inlet port and the outlet port are provided at the same height from a bottom wall of the casing.

4. The coolant supply unit of claim 1 , wherein:
the inlet port is provided at one length direction end side of the casing; and
the outlet port is provided at the other length direction end side of the casing.

5. The coolant supply unit of claim 4 , wherein respective length directions of the plurality of pumps intersect with the casing length direction in a side view of the casing.

6. The coolant supply unit of claim 4 , wherein respective length directions of the plurality of pumps are parallel to the casing length direction in a side view of the casing.

7. The coolant supply unit of claim 1 , wherein:
a number of the plurality of branch ports is greater than a number of pumps of the plurality of pumps, and a number of the plurality of flow merging ports is greater than the number of pumps of the plurality of pumps; and
the coolant supply unit further comprises one or more closing off members that close off branch ports and flow merging ports to which the pumps are not connected.

8. The coolant supply unit of claim 1 , wherein the plurality of pumps are provided at the casing at one side in a width direction orthogonal to a casing length direction.

9. The coolant supply unit of claim 1 , wherein the plurality of pumps are provided at the casing at both sides in a width direction orthogonal to a casing length direction.

10. A cooling unit comprising:
the coolant supply unit of claim 1 ;
a heat receiving member that causes heat of a cooling target member to act on coolant supplied from the coolant supply unit;
a cooling member that cools the coolant heated by the heat receiving member; and
a storage member that stores the coolant that has been cooled by the cooling member and that is partway through being conveyed to the coolant supply unit.

11. The cooling unit of claim 10 , wherein:
the storage member is disposed such that a storage member length direction is inclined with respect to a cooling member length direction in plan view of the cooling member; and
the casing is disposed parallel to the cooling member in the plan view.

12. The cooling unit of claim 11 , wherein at least one of the plurality of pumps is disposed between the cooling member and the casing in the plan view.

13. The cooling unit of claim 10 , wherein the heat receiving member is disposed below the casing and facing the casing.

14. An electronic device comprising:
the cooling unit of claim 10 ; and
a cooling target member that is cooled by heat transmission to the coolant by the heat receiving member of the cooling unit.

Assignees

• Fujitsu Ltd

Inventors

• Suzuki Masumi
• Aoki Michimasa
• Wei Jie

Classifications

• F04D13/12 Primary

  Combinations of two or more pumps (combinations with priming pumps or booster pumps to counteract vapour-lock F04D9/04) · CPC title

• Y10T137/86163

  Parallel · CPC title

• F04B23/04

  Combinations of two or more pumps · CPC title

• F04B9/117

  the pumping members not being mechanically connected to each other · CPC title

• H05K7/20272 Primary

  Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds · CPC title