Fixing mechanism for fixing a thermal module on a base and related electronic device

A fixing mechanism for fixing a thermal module on a base includes a U-shaped buckling component disposed on a side of the base for buckling a thermal fin and a heat conducting block of the thermal module, and a fixing component disposed on the other side of the base and connected to the U-shaped buckling component for clipping the base with the U-shaped buckling component.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a fixing mechanism for fixing a thermal module, and more particularly, to a fixing mechanism for buckling on a thermal module so as to fix the thermal module on a base and a related electronic device.

2. Description of the Prior Art

A conventional fixing mechanism for fixing a thermal module is disposed on a bottom of the thermal module on a circuit board. The conventional fixing mechanism may be overheated by a heat source disposed on the circuit board due to improper operation by a user, and a fixing component of the fixing mechanism for fixing the thermal module on the circuit is easy to be fused resulting in separating the thermal module from the circuit board. Therefore, service cost of the conventional fixing mechanism is increased. Thus, design of a fixing mechanism capable of transmitting heat generated by the circuit board to the thermal module without fusing the fixing component is an important issue of the electronic industry.

SUMMARY OF THE INVENTION

The present invention provides a fixing mechanism for fixing a thermal module on a base for solving above drawbacks.

According to the claimed invention, a fixing mechanism for fixing a thermal module on a base, the fixing mechanism includes a U-shaped buckling component disposed on a side of the base and buckling a thermal fin and a heat conducting block of the thermal module, and a fixing component disposed on the other side of the base and connected to the U-shaped buckling component for clipping the base with the U-shaped buckling component, so as to constrain relative movement of the base and the thermal module.

According to the claimed invention, a wedging structure is disposed on a side of the U-shaped buckling component, a sliding slot is formed on a side of the thermal fin, and the wedging structure is wedged inside the sliding slot for fixing the U-shaped buckling component on the thermal fin.

According to the claimed invention, the U-shaped buckling component is disposed on the thermal fin in a slidable manner.

According to the claimed invention, two sides of the U-shaped buckling component respectively align with two corresponding sides of the heat conducting block of the thermal module.

According to the claimed invention, the U-shaped buckling component is fixed on the heat conducting block.

According to the claimed invention, the fixing mechanism further includes a locking component for locking the fixing component on the U-shaped buckling component.

According to the claimed invention, the locking component is a spring screw.

According to the claimed invention, an electronic device includes a base, and a thermal module. The thermal module includes a thermal fin, and a heat conducting block disposed on a side of the thermal fin. The electronic device further includes a fixing mechanism for fixing the thermal module on the base. The fixing mechanism includes a U-shaped buckling component disposed on a side of the base and buckling the thermal fin and the heat conducting block, and a fixing component disposed on the other side of the base and connected to the U-shaped buckling component for clipping the base with the U-shaped buckling component, so as to constrain relative movement of the base and the thermal module.

According to the claimed invention, the sliding slot is formed on the side of the thermal fin, and the wedging structure of the U-shaped buckling component is wedged inside the sliding slot, so that the U-shaped buckling component can be disposed on the thermal fin of the thermal module in the slidable manner for increasing stability of the thermal module installed on the base and for preventing the thermal module from separating due to the user's improper operation.

DETAILED DESCRIPTION

Please refer toFIG. 1andFIG. 2.FIG. 1is an exploded diagram of an electronic device10according to a preferred embodiment of the present invention.FIG. 2is a sectional view of the electronic device10according to the preferred embodiment of the present invention. The electronic device10includes a base12, and the base12can be a circuit board. The electronic device further includes a thermal module14for dissipating heat generated by electronic components disposed on the circuit board12. The thermal module14includes a thermal fin16, and a heat conducting block18disposed on a side of the thermal fin16. The electronic device10further includes a fixing mechanism20for fixing the thermal module14on the base12. The fixing mechanism20includes a U-shaped buckling component22disposed on a side of the base12and buckling the thermal fin16and the heat conducting block18. The U-shaped buckling component22can be disposed on the thermal fin16in a slidable manner. For example, a wedging structure221can be disposed on a side of the U-shaped buckling component22, a sliding slot161can be formed on a side of the thermal fin16, and the sliding slot161is substantially parallel to a side of the heat conducting block18, so that the wedging structure221can be wedged inside the sliding slot161for fixing the U-shaped buckling component22on the thermal fin16. When the wedging structure221of the U-shaped buckling component22slides inside the sliding slot161of the thermal fin16, two sides of the U-shaped buckling component22respectively align with two corresponding sides of the heat conducting block18, and the U-shaped buckling component22can be locked on the heat conducting block18for promoting stability of the fixing mechanism20.

In addition, the fixing mechanism20further includes a fixing component24disposed on the other side of the base12and connected to the U-shaped buckling component22for clipping the base12with the U-shaped buckling component22, so as to constrain relative movement of the base12and the thermal module14. The fixing mechanism20can further include a locking component26for locking the fixing component24on the U-shaped buckling component22. Generally, the locking component26can be a spring screw. Therefore, when the U-shaped buckling component22buckles the thermal fin16and the heat conducting block18, the fixing component24can clip the base12with the U-shaped buckling component22via the locking component26, so as to press the base12close to the heat conducting block18for preferable heat dissipating efficiency.

In conclusion, as a user utilizes the fixing mechanism20to assemble the thermal module14on the base12, the wedging structure221of the U-shaped buckling component22is inserted into the sliding slot161on the thermal fin16, and the U-shaped buckling component22slides relative to the heat conducting block18to a predetermined position, which means the two sides of the U-shaped buckling component22respectively align with the two corresponding sides of the heat conducting block18and the U-shaped buckling component22covers the heat conducting block18tightly, for locking the U-shaped buckling component22on the heat conducting block18. Then, the base12is placed between the U-shaped buckling component22and the fixing component24, and the locking component26passes through a locking hole on the fixing component24and an opening hole on the base12, so that the fixing component24is locked with the U-shaped buckling component22. The fixing component24can clip the base12with the U-shaped buckling component22via the locking component26, so that the base12is pressed for closing to the heat conducting block18for preferable heat dissipating efficiency. Generally, thermal grease, such as hypothermia solder paste, can be laid between the heat conducting block18and the base12for dissipating the heat generated by the electronic components disposed on the base12, together with the thermal fin16and the heat conducting block18.

Comparing to the prior art, the fixing mechanism of the present invention buckles the thermal module for connecting the thermal module to the base. In this present invention, the sliding slot is formed on the side of the thermal fin, and the wedging structure of the U-shaped buckling component is wedged inside the sliding slot, so that the U-shaped buckling component can be disposed on the thermal fin of the thermal module in the slidable manner for increasing stability of the thermal module installed on the base and for preventing the thermal module from separating due to the user's improper operation.