Cooling system for a hand-held electronic device

Patent metadata

Field	Value
Publication number	US-9861005-B2
Application number	US-201414177303-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Feb 21, 2013
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A cooling system for a hand-held electronic device includes a casing including a compartment, at least one air inlet in communication with the compartment, and at least one air outlet in communication with the compartment. A wind driving assembly is mounted in the compartment and includes a frame, a package, and a thermally conductive cover. The thermally conductive cover engages with the frame and the package. An impeller is rotatably arranged in the frame having an outlet hole adjacent to the at least one air outlet. The package receives at least one electronic element that generates heat during operation. The thermally conductive cover includes an inlet hole in communication with an interior of the frame. An air channel is formed between the thermally conductive cover and an interior wall face of the casing. The at least one air inlet intercommunicates with the inlet hole via the air channel.

First claim

What is claimed is:

1. A cooling system for a hand-held electronic device, comprising:
a casing including a compartment, at least one air inlet in communication with the compartment, and at least one air outlet in communication with the compartment;
a wind driving assembly mounted in the compartment, with the wind driving assembly including a frame, a package and a thermally conductive cover, with the thermally conductive cover engaged with the frame and the package, with an impeller rotatably mounted in the frame, with the frame including an outlet hole adjacent to the at least one air outlet of the casing, with the package adapted to receive at least one electronic element, with the at least one electronic element generating heat during operation, and with the thermally conductive cover including an inlet hole in communication with an interior of the frame; and
an auxiliary fan mounted in the casing and including an inlet hole and an outlet hole, with the inlet hole of the auxiliary fan located adjacent to the at least one air inlet of the casing, with an air guiding gap formed between the auxiliary fan and the package, and with the air guiding gap adjoining the outlet hole of the auxiliary fan,
wherein an air channel is formed between the thermally conductive cover and an interior wall face of the casing, and the at least one air inlet of the casing intercommunicates with the inlet hole of the thermally conductive cover via the air channel,
with the wind driving assembly including a side adjacent to the auxiliary fan, with the side of the wind driving assembly including an airflow guiding portion, and with the airflow guiding portion being an inclined face.

2. The cooling system for a hand-held electronic device as claimed in claim 1 , wherein the frame and the package adjoin each other and are located side by side, and the thermally conductive cover integrally extends from the frame to the package.

3. The cooling system for a hand-held electronic device as claimed in claim 1 , wherein the frame and the package adjoin each other and are located side by side, and the thermally conductive cover integrally extends from the package to the frame.

4. The cooling system for a hand-held electronic device as claimed in claim 1 , further comprising: an auxiliary thermally conductive cover mounted to a side of the frame opposite to the thermally conductive cover, with an auxiliary air channel formed between the auxiliary thermally conductive cover and the interior wall face of the casing, with the frame further including at least one auxiliary inlet hole, with the at least one auxiliary inlet hole intercommunicating with the at least one air inlet of the casing via the auxiliary air channel, and with the auxiliary thermally conductive cover including at least one through-hole aligned with the at least one auxiliary inlet hole.

5. The cooling system for a hand-held electronic device as claimed in claim 4 , further comprising: a conduit connected to the frame, with the conduit connected between the outlet hole of the frame and the at least one air outlet of the casing.

6. The cooling system for a hand-held electronic device as claimed in claim 4 , with the auxiliary thermally conductive cover including a surface coated with a far infrared powder coating or a powder coating of negative ions.

7. The cooling system for a hand-held electronic device as claimed in claim 1 , further comprising: a conduit connected to the frame, with the conduit connected between the outlet hole of the frame and the at least one air outlet of the casing.

8. The cooling system for a hand-held electronic device as claimed in claim 1 , with the thermally conductive cover including a surface coated with a far infrared powder coating or a powder coating of negative ions.

9. The cooling system for a hand-held electronic device as claimed in claim 1 , with the side of the wind driving assembly further including another inclined face opposite to the inclined face.

10. A cooling system for a hand-held electronic device, comprising:
a casing including a compartment, at least one air inlet in communication with the compartment, and at least one air outlet in communication with the compartment;
a wind driving assembly mounted in the compartment, with the wind driving assembly including a frame, a package and a thermally conductive cover, with the thermally conductive cover engaged with the frame and the package, with an impeller rotatably mounted in the frame, with the frame including an outlet hole adjacent to the at least one air outlet of the casing, with the package adapted to receive at least one electronic element, with the at least one electronic element generating heat during operation, and with the thermally conductive cover including an inlet hole in communication with an interior of the frame; and
an auxiliary fan mounted in the casing and including an inlet hole and an outlet hole, with the inlet hole of the auxiliary fan located adjacent to the at least one air inlet of the casing, with an air guiding gap formed between the auxiliary fan and the package, and with the air guiding gap adjoining the outlet hole of the auxiliary fan,
wherein an air channel is formed between the thermally conductive cover and an interior wall face of the casing, and the at least one air inlet of the casing intercommunicates with the inlet hole of the thermally conductive cover via the air channel,
with the wind driving assembly including a side adjacent to the auxiliary fan, with the side of the wind driving assembly including an airflow guiding portion, and with the airflow guiding portion being an arc-like face.

11. The cooling system for a hand-held electronic device as claimed in claim 10 , further comprising: an auxiliary thermally conductive cover mounted to a side of the frame opposite to the thermally conductive cover, with an auxiliary air channel formed between the auxiliary thermally conductive cover and the interior wall face of the casing, with each of the thermally conducting cover and the auxiliary thermally conducting cover having at least one airflow guiding hole located in an adjoining area between the frame and the package.

12. The cooling system for a hand-held electronic device as claimed in claim 11 , with the side of the wind driving assembly further including another arc-like face opposite to the arc-like face.

13. The cooling system for a hand-held electronic device as claimed in claim 11 , with the casing further including another side having an auxiliary air inlet and an auxiliary air outlet, with the auxiliary air inlet aligned with the auxiliary fan, with the auxiliary air outlet aligned with the frame, and with the frame including an auxiliary outlet hole aligned with the auxiliary air outlet.

14. A cooling system for a hand-held electronic device, comprising:
a casing including a compartment, at least one air inlet in communication with the compartment, and at least one air outlet in communication with the compartment;
a wind driving assembly mounted in the compartment, with the wind driving assembly including a frame, a package and a thermally conductive cover, with the frame, the package and the thermally conductive cover integrally formed as a housing of the wind driving assembly, with an impeller rotatably mounted in the frame, with the frame including an outlet hole adjacent to the at least one air outlet of the casing, with the package adapted to receive at least one electronic element, with the at least one electronic element generating heat during operation, and with the thermally conductive cover including an inlet hole in communication with an interior of th

Assignees

• Sunonwealth Electric Machine Ind Co Ltd

Inventors

• Li Ming-Tsung
• Lin Shih-Hang

Classifications

• H05K7/20154 Primary

  Heat dissipaters coupled to components · CPC title

• G06F1/203 Primary

  for portable computers, e.g. for laptops · CPC title