Air-cooling heat dissipation device

Patent metadata

Field	Value
Publication number	US-2018168066-A1
Application number	US-201715834916-A
Country	US
Kind code	A1
Filing date	Dec 7, 2017
Priority date	Dec 8, 2016
Publication date	Jun 14, 2018
Grant date	—

Abstract

An air-cooling heat dissipation device includes a base, a swirling-airflow heatsink, an air pump and a passage connector. The base is located beside an electronic component while the air pump is fixed on the base. The swirling-airflow heatsink is attached on the electronic component and includes a swirling passage defined by a conductive line and a thermal conduction plate collaboratively. An airflow-guiding chamber is defined by the air pump and the base collaboratively, and the airflow-guiding chamber is in communication with the swirling passage by the passage connector. When the air pump is enabled, an ambient air is introduced into the airflow-guiding chamber of the base and transferred to the swirling passage of the swirling-airflow heatsink through a discharge opening of the base and the passage connector. Consequently, a fast swirling air flow is produced to cool the electronic component.

First claim

What is claimed is:

1 . An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:
a base located beside the electronic component, and comprising an introduction opening and a discharge opening; a swirling-airflow heatsink attached on the electronic component, and comprising a swirl-shaped conductive line and a thermal conduction plate placed over the conductive line, so that a swirling passage is defined by the conductive line and the thermal conduction plate collaboratively, wherein the thermal conduction plate has a vent corresponding to a middle region of the swirling passage; an air pump fixed on the base and sealing the edge of the introduction opening by which an airflow-guiding chamber is defined by the air pump and the base collaboratively; and a passage connector connected between the discharge opening of the base and the swirling passage of the swirling-airflow heatsink, wherein when the air pump is enabled, an ambient air is driven by the air pump and introduced into the airflow-guiding chamber of the base and transferred to the swirling passage of the swirling-airflow heatsink through the discharge opening and the passage connector, so that a fast swirling air flow is produced to remove heat from the electronic component, after which the heated air flow is discharged through the vent of the swirling-airflow heatsink.

2 . The air-cooling heat dissipation device according to claim 1 , wherein the air pump is a piezoelectric air pump.

3 . The air-cooling heat dissipation device according to claim 2 , wherein the piezoelectric air pump comprises:
a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, and the at least one convergence channel corresponds to the at least one inlet, wherein after the air is introduced into the at least one convergence channel through the at least one inlet, the air is guided by the at least one convergence channel and converged to the convergence chamber; a resonance plate having a central aperture, wherein the central aperture is aligned with the convergence chamber, wherein the resonance plate comprises a movable part near the central aperture; and a piezoelectric actuator aligned with the resonance plate, wherein a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is enabled, the air is fed into the air pump through the at least one inlet of the gas inlet plate, converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, and introduced into the first chamber, wherein the air is further transferred through a resonance between the piezoelectric actuator and the movable part of the resonance plate.

4 . The air-cooling heat dissipation device according to claim 3 , wherein the piezoelectric air pump comprises a conducting plate, a first insulation plate and a second insulation plate, wherein the gas inlet plate, the resonance plate, the first insulation plate, the conducting plate and the second insulation plate are stacked on each other sequentially.

5 . The air-cooling heat dissipation device according to claim 3 , wherein the piezoelectric actuator comprises:
a suspension plate having a first surface and an opposing second surface, wherein the suspension plate is permitted to undergo a curvy vibration; an outer frame arranged around the suspension plate; at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and a piezoelectric plate, wherein a length of the piezoelectric plate is smaller than or equal to a length of the suspension plate, and the piezoelectric plate is attached on the first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric plate, the suspension plate is driven to undergo the curvy vibration.

6 . The air-cooling heat dissipation device according to claim 5 , wherein the suspension plate is a square suspension plate having a bulge formed on the second surface.

7 . The air-cooling heat dissipation device according to claim 1 , further comprising a control system, wherein the control system comprises:
a control unit electrically connected with the air pump for controlling operations of the air pump; and a temperature sensor electrically connected with the control unit and located near the electronic component, wherein the temperature sensor detects a temperature of the electronic component and generates a corresponding detecting signal to the control unit, wherein the control unit obtains the temperature of the electronic component according to the detecting signal, wherein if the control unit determines the temperature of the electronic component is higher than or equal to a threshold value, the control unit enables the air pump to generate the air flow, wherein if the control unit determines that the temperature of the electronic component is lower than the threshold value, the control unit disables the air pump.

8 . An air-cooling heat dissipation device for removing heat from an electronic component, the electronic component being contacted with a thermal conduction element, the air-cooling heat dissipation device comprising:
a base located beside the electronic component, and comprising an introduction opening and a discharge opening; a swirling-airflow heatsink attached on the thermal conduction element, and comprising a swirl-shaped conductive line and a thermal conduction plate placed over the conductive line, so that a swirling passage is defined by the conductive line and the thermal conduction base collaboratively, wherein the thermal conduction plate has a vent corresponding to a middle region of the swirling passage; an air pump fixed on the base and sealing the edge of the introduction opening by which an airflow-guiding chamber is defined by the air pump and the base collaboratively; and a passage connector connected between the discharge opening of the base and the swirling passage of the swirling-airflow heatsink, wherein when the air pump is enabled, an ambient air is driven by the air pump and introduced into the airflow-guiding chamber of the base and transferred to the swirling passage of the swirling-airflow heatsink through the discharge opening and the passage connector, so that a fast swirling air flow is produced, wherein the heat from the electronic component is transferred to the thermal conduction element and removed by the fast swirling air flow, after which the heated air flow is discharged through the vent of the swirling-airflow heatsink.

9 . An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:
a first base and a second base opposed to each other with respect to the electronic component, wherein the first base comprises a first introduction opening and a first discharge opening, and the second base comprises a second introduction opening and a second discharge opening; a swirling-airflow heatsink attached on the electronic component, and comprising a first swirl-shaped conductive line, a second swirl-shaped conductive line and a thermal conduction plate placed over the first swirl-shaped conductive line and the second swirl-shaped conductive line, so that a dual-swirling passage is defined by the first swirl-shaped conductive line, the second swirl-shaped conductive line and the thermal conduction plate collaboratively, wherein the thermal conduction plate has a vent c

Assignees

• Microjet Technology Co Ltd

Inventors

• Xu zhen-chun
• Chiang Kuei-Liang
• Lin Yung-Kang
• Huang Chi-Feng
• Han Yung-Lung

Classifications

• F04B35/04

  the means being electric · CPC title

• G06F1/203

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

• F04B17/003

  driven by piezoelectric means (F04B43/046 and F04B43/095 take precedence) · CPC title

• H05K7/20172

  Fan mounting or fan specifications · CPC title

• H05K7/20154

  Heat dissipaters coupled to components · CPC title