Cooling device with a plurality of pipe units connected to a common base

• US 10,544,993 B2
• Filed: 12/25/2015
• Issued: 01/28/2020
• Est. Priority Date: 12/25/2014
• Status: Active Grant

• Current Assignee: Mitsubishi Aluminum Company Limited (Mitsubishi Materials Corporation)
• Original Assignee: Mitsubishi Aluminum Company Limited (Mitsubishi Materials Corporation)
• Inventors: Takemura, Hiroshi, Sueki, Yasuhito, Sata, Shun-ichi, Hisano, Tokio
• Primary Examiner(s): Ruby, Travis C
• Application Number:
  US15/537,288
• Publication Number:
  US 20180051936A1
• Time in Patent Office: 1,495 Days
• CPC Class Codes: F28D 15/02 in which the medium condenses and evaporates, e.g. heat pipes heat pipes used in solar heat collectors F24S10/95; in radiators F28D1/0226; in nuclear reactors G21C15/257
• CPC Class Codes: F28F 1/24 and extending transversely F28F1/38 takes precedence
• CPC Class Codes: F28F 7/02 Blocks traversed by passages for heat-exchange media F28D7/0008 takes precedence
• CPC Class Codes: H01L 23/3672 Foil-like cooling fins or heat sinks being part of lead-frames H01L23/49568
• CPC Class Codes: H01L 23/3677 Wire-like or pin-like cooling fins or heat sinks
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A cooling device including: a base block having a first length and a first thickness and having a mounting side on which a heat-generating body is installed along a first vertical direction. The cooling device further includes a pipe unit, including a tank buried at an opposite side to the mounting side of the base block for storing a coolant, and pipes which are connected to the tank and are parallel to one another. Heat radiation fins are disposed on the pipes in a state in which the pipes penetrate the heat radiation fins. The cooling device in which the tank is formed has a flattened shape and a smaller dimension along a first thickness direction of the base block than a height dimension along the first length of the block. Each of the pipes are connected to an upper position of the tank with respect to the height dimension.

Claims

1. A cooling device comprising:

a base block having a first length along a vertical direction and a first thickness, the base block further having a mounting side on which at least one heat-generating body is installed;

at least one pipe unit comprising a tank buried at an opposite side to the mounting side of the base block and storing coolant, and a plurality of pipes which are connected to a side of the tank, wherein each of the plurality of pipes has a longitudinal axis, and each of the respective longitudinal axes are parallel to one another; and

heat radiation fins installed on the pipes in a state in which the pipes penetrate the heat radiation fins, wherein the tank has a flattened shape with a pair of first inner walls having a first tank thickness dimension along a first thickness direction of the base block and a pair of second inner wall surfaces having a second tank height dimension along the first length of the block, wherein the second tank height dimension is larger than the first tank thickness dimension, wherein each of the pipes form an opening at an upper portion of the second inner wall surface of the tank with respect to the second tank height dimension, wherein each of the openings formed at the upper portion of the second inner wall surface is formed at a location above the center point of the second tank height dimension.

2. The cooling device according to claim 1, further comprising:

a plurality of the at least one pipe units buried at the base block in parallel arrangement;

an installation interval of the pipe units between the tanks is smaller than an installation interval of the at least one heat-generating body, wherein at least one of the heat radiation fins is installed on the pipes so that all of the pipes of the plurality of the at least one pipe units penetrates the at least one of the heat radiation fins.

3. The cooling device of claim 1, wherein at least a portion of the base block forms a first plane, wherein the pipes form an oblique angle with respect to the first plane.

4. The cooling device of claim 1, wherein each of the openings formed at the upper portion of the second inner wall surface are formed at a location other than the center point of the second tank height dimension.

5. The cooling device of claim 1, wherein the tank is buried within the base block with a depth of more than half of the first tank thickness.

6. The cooling device of claim 1, wherein the second pair of second inner wall surfaces are flat.

7. A cooling device comprising:

a base block having a first length along a vertical direction and a first thickness, the base block further having a mounting side on which at least one heat-generating body is installed;

at least one pipe unit comprising a tank buried at an opposite side to the mounting side of the base block and storing coolant, and a plurality of pipes which are connected to a side of the tank, wherein each of the plurality of pipes has a longitudinal axis, and each of the respective longitudinal axes are parallel to one another; and

heat radiation fins installed on the pipes in a state in which the pipes penetrate the heat radiation fins, wherein the tank has a flattened shape with a pair of first inner walls as curved surfaces having a first tank thickness dimension along a first thickness direction of the base block and a pair of second inner wall surfaces having a second tank height dimension along the first length of the block, wherein the second tank height dimension is larger than the first tank thickness dimension, wherein each of the pipes form an opening at an upper portion of the second inner wall surface of the tank with respect to the second tank height dimension, wherein each of the openings formed at the upper portion of the second inner wall surface is formed at a location above the center point of the second tank height dimension.