IP Library Granted Patent US 12,641,753
Granted Patent B2
US 12,641,753 · App. 18/071,154 · Granted May 26, 2026

Water-cooled heat dissipation module, electronic device and control method thereof

Inventors: Bo Ding (Beijing, CN); Bai Lin (Beijing, CN)
Assignee: LENOVO (BEIJING) LIMITED
H05K7/20281H05K7/20154H05K7/20172H05K7/20263H05K7/20272
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Quick Facts
Patent No.
US 12,641,753
App. No.
18/071,154
Granted
May 26, 2026
Kind
B2
Abstract

A water-cooled heat dissipation module. The water-cooled heat dissipation module includes a first heat dissipation branch for guiding a heat dissipation medium to flow in a first space; a second heat dissipation branch communicating with the first heat dissipation branch for guiding the heat dissipation medium to flow in a second space; and a control assembly for controlling a flow rate of the heat dissipation medium in the first heat dissipation branch and/or the second heat dissipation branch, where the first space and the second space are at least partially non-overlapping.

Claims (52)

1 . A water-cooled heat dissipation module comprising:

a first heat dissipation branch for guiding a heat dissipation medium to flow in a first space;

a second heat dissipation branch communicating with the first heat dissipation branch for guiding the heat dissipation medium to flow in a second space; and

a control assembly for controlling a flow rate of the heat dissipation medium in the first heat dissipation branch and/or the second heat dissipation branch, the control assembly comprising at least one control valve and/or at least one drive assembly disposed in the first heat dissipation branch and/or the second heat dissipation branch, wherein:

the first space and the second space are non-overlapping; in a process in which the water-cooled heat dissipation module is configured to dissipate heat of an electronic device, the control assembly is configured to determine a plurality of control parameters of the at least one control valve and/or the at least one drive assembly based on a plurality of heating parameters of a first heat-generating assembly and/or a second heat-generating assembly of the electronic device and/or a plurality of operating parameters of the electronic device, and based on the determined plurality of control parameters, control the first heat dissipation branch to dissipate heat for at least a part of a first heat-generating assembly of the electronic device, and/or control the second heat dissipation branch to dissipate heat for at least a part of a second heat-generating assembly and/or the first heat-generating assembly of the electronic device.

2 . The water-cooled heat dissipation module of claim 1 further comprising:

a box body for accommodating the heat dissipation medium, the first heat dissipation branch and the second heat dissipation branch being in communication through the box body, wherein:

the control assembly includes a drive assembly, the drive assembly being arranged in the second heat dissipation branch to drive the heat dissipation medium to flow at least in the second heat dissipation branch, or in the second heat dissipation branch and the first heat dissipation branch that communicate with each other; or

the control assembly includes at least two drive assemblies, the at least two drive assemblies being respectively disposed on the first heat dissipation branch and the second heat dissipation branch to drive the heat dissipation medium to flow at least in the first heat dissipation branch and/or the second heat dissipation branch.

3 . The water-cooled heat dissipation module of claim 2 , wherein the drive assembly includes:

a flow guide having a first receiving cavity and at least two sets of outlets and inlets, the at least two sets of outlets and inlets respectively communicating with the first heat dissipation branch and the second heat dissipation branch;

a drive device disposed in the first receiving cavity for driving the heat dissipation medium to flow in the first heat dissipation branch and/or the second heat dissipation branch based on the outlets and inlets; and

a sealing member for sealing the drive device into the first receiving cavity of the flow guide.

4 . The water-cooled heat dissipation module of claim 1 , wherein:

the second heat dissipation branch includes a first part of a heat dissipation pipe and a second part of the heat dissipation pipe arranged on a radiator, the first part of the heat dissipation pipe being used to dissipate heat for at least part of the second heat-generating assembly, the second part of the heat dissipation pipe and the first part of the heat dissipation pipe being connected in parallel, the second part of the heat dissipation pipe being used to dissipate heat for at least part of the first heat-generating assembly and at least part of the second heat-generating assembly independently or in combination with the first heat dissipation branch; or,

the second heat dissipation branch includes the a first part of the heat dissipation pipe, a second part of the heat dissipation pipe, and a third part of the heat dissipation pipe, the first part of the heat dissipation pipe being used to dissipate heat for at least part of the second heat-generating assembly, the second part of the heat dissipation pipe being used to dissipate heat for at least part of the first heat-generating assembly and at least part of the second heat-generating assembly, the third part of the heat dissipation pipe being arranged in parallel or in series with the first heat dissipation branch to dissipate heat for at least part of the first heat-generating assembly.

5 . The water-cooled heat dissipation module of claim 1 , wherein the control assembly further includes:

the at least one control valve disposed in the first heat dissipation branch and/or the second heat dissipation branch to control the flow rate of the heat dissipation medium in the first heat dissipation branch and/or the second heat dissipation branch.

6 . An electronic device comprising:

a first heat-generating assembly;

a second heat-generating assembly:

a water-cooled heat dissipation module, the water-cooled heat dissipation module including:

a first heat dissipation branch for guiding a heat dissipation medium to flow in a first space;

a second heat dissipation branch communicating with the first heat dissipation branch for guiding the heat dissipation medium to flow in a second space; and

a control assembly for controlling a flow rate of the heat dissipation medium in the first heat dissipation branch and/or the second heat dissipation branch, the control assembly comprising at least one control valve and/or at least one drive assembly disposed in the first heat dissipation branch and/or the second heat dissipation branch;

a body having a second receiving cavity, the first heat dissipation branch, the second heat dissipation branch, the first heat-generating assembly, and the second heat-generating assembly being disposed in the second receiving cavity; and

a monitor module for monitoring heating parameters of the first heat-generating assembly and/or the second heat-generating assembly and/or operating parameters of the electronic device, wherein:

the control assembly is configured to determine a plurality of control parameters of the at least one control valve and/or the at least one drive assembly based on a plurality of heating parameters of the first heat-generating assembly and/or the second heat-generating assembly of the electronic device and/or a plurality of operating parameters of the electronic device, and based on the determined plurality of control parameters, control the first heat dissipation branch to dissipate heat for at least part of the first heat-generating assembly based on the heating parameters and/or the operating parameters, and/or control the second heat dissipation branch to dissipate heat for at least part of the second heat-generating assembly and/or the first heat-generating assembly.

7 . The electronic device of claim 6 , the water-cooled heat dissipation module further comprising:

a box body for accommodating the heat dissipation medium, the first heat dissipation branch and the second heat dissipation branch being in communication through the box body, wherein:

the control assembly includes a drive assembly, the drive assembly being arranged in the second heat dissipation branch to drive the heat dissipation medium to flow at least in the second heat dissipation branch, or in the second heat dissipation branch and the first heat dissipation branch that communicate with each other; or

the control assembly includes at least two drive assemblies, the at least two drive assemblies being respectively disposed on the first heat dissipation branch and the second heat dissipation branch to drive the heat dissipation medium to flow at least in the first heat dissipation branch and/or the second heat dissipation branch.

8 . The electronic device of claim 7 , wherein the drive assembly includes:

a flow guide having a first receiving cavity and at least two sets of outlets and inlets, the at least two sets of outlets and inlets respectively communicating with the first heat dissipation branch and the second heat dissipation branch;

a drive device disposed in the first receiving cavity for driving the heat dissipation medium to flow in the first heat dissipation branch and/or the second heat dissipation branch based on the outlets and inlets; and

a sealing member for sealing the drive device into the first receiving cavity of the flow guide.

9 . The electronic device of claim 6 , wherein:

the second heat dissipation branch includes a first part of a heat dissipation pipe and a second part of the heat dissipation pipe arranged on a radiator, the first part of the heat dissipation pipe being used to dissipate heat for at least part of the second heat-generating assembly, the second part of the heat dissipation pipe and the first part of the heat dissipation pipe being connected in parallel, the second part of the heat dissipation pipe being used to dissipate heat for at least part of the first heat-generating assembly and at least part of the second heat-generating assembly independently or in combination with the first heat dissipation branch; or,

the second heat dissipation branch includes the-a first part of the heat dissipation pipe, a second part of the heat dissipation pipe, and a third part of the heat dissipation pipe, the first part of the heat dissipation pipe being used to dissipate heat for at least part of the second heat-generating assembly, the second part of the heat dissipation pipe being used to dissipate heat for at least part of the first heat-generating assembly and at least part of the second heat-generating assembly, the third part of the heat dissipation pipe being arranged in parallel or in series with the first heat dissipation branch to dissipate heat for at least part of the first heat-generating assembly.

10 . The electronic device of claim 6 , wherein the control assembly further includes:

the at least one control valve disposed in the first heat dissipation branch and/or the second heat dissipation branch to control the flow rate of the heat dissipation medium in the first heat dissipation branch and/or the second heat dissipation branch.

11 . The electronic device of claim 6 , wherein:

a bottom wall of the body includes an air inlet, the air inlet corresponding to a first side surface of a radiator of the water-cooled heat dissipation module for air in outside environment to be introduced into a gap between heat dissipating pipes of the radiator from the air inlet;

the electronic device further includes:

a first set of fans disposed on the body, the first set of fans corresponding to a position of a first air outlet of a first side wall of the body, the first set of fans being configured to lead the air passing through the radiator from the first air outlet, the first side wall being arranged adjacent to the bottom wall; and

a second set of fans disposed on the body, the second set of fans corresponding to a position of a second air outlet on a second side wall of the body, the second set of fans being configured to lead the air passing through the radiator from the second air outlet, the second side wall being opposite to the first side wall.

12 . The electronic device of claim 11 , wherein:

the second heat-generating assembly and the first heat-generating assembly are disposed on both sides of a motherboard, the radiator is disposed between the motherboard and the bottom wall of the body, and the first heat dissipation branch is disposed between the first heat-generating assembly and the second heat-generating assembly or on a side of the first heat-generating assembly facing away from the second heat-generating assembly; or

the second heat-generating assembly and the first heat-generating assembly are disposed on a same side of a motherboard, the radiator is disposed on a plane between the motherboard and the first heat-generating assembly, and the first heat dissipation branch is disposed on a side of the first heat-generating assembly facing away from the radiator or is in contact with the side of the first heat-generating assembly and the second heat-generating assembly facing away from the radiator at the same time.

13 . The electronic device of claim 6 , wherein determining the plurality of control parameters of the at least one control valve and/or the at least one drive assembly based on the plurality of heating parameters of the first heat-generating assembly and/or the second heat-generating assembly of the electronic device and/or the plurality of operating parameters of the electronic device includes:

determining a target heating area based on the plurality of heating parameters and/or the plurality of operating parameters, and determining the plurality of control parameters of the at least one drive assembly and/or the at least one control valve corresponding to the target heating area; or

determining the target heating area based on the plurality of heating parameters and/or the plurality of operating parameters, and determining a plurality of control parameters of a fan and the plurality of control parameters of the at least one drive assembly and/or the at least one control valve corresponding to the target heating area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2022
From: DING, BO; LIN, BAI
To: LENOVO (BEIJING) LIMITED
Reel/Frame 061910/0553 →
Priority Claims (1)
CN 202111443738.1 · Nov 30, 2021 · national
Continuity (1)
Related Publication 20230171922A1 · Jun 1, 2023
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