1. Field of the Invention
The present invention relates to a fixing mechanism for fixing two objects, and more particularly, to a fixing mechanism for fixing a board on a base with a rotational mechanism and a related electronic device.
2. Description of the Prior Art
With the rapid development of information technology, computer systems are playing an important role in modernizing many companies, which now are widely used in practically every industry. Due to the increase in data storage density, the improvement in clock speed, and the decrease in production costs, the manufacturing of portable computers has become a mainstream business in the computer industry. In general, the computer system includes a case for covering and protecting internal components. Sometimes a circuit board, such as a motherboard, is screwed to a boss of the case. However, because the circuit board is not screwed in equilibrium due to mechanical tolerance, the circuit board is not level so as to induce planar stress. It might cause local failure due to stress concentration, and electronic components on the circuit board break easily when an impact is applied to the circuit board. For example, tapped holes of the circuit board and chips disposed around positioning holes are broken easily. In addition, clamping the circuit board by screws spends assembly labor hours. Thus, design of a fixing mechanism capable of fixing the circuit board effectively is an important issue in the mechanical industry.
The present invention provides a fixing mechanism for fixing a board on a base with a rotational mechanism and a related electronic device for solving above drawbacks.
According to the claimed invention, a fixing mechanism includes a base, whereon a protrusion and a first hole are formed, an elastic component installed inside the base, and a supporting component wedged inside the base. An end of the supporting component contacts against the elastic component, and the other end of the supporting component supports a first object. The fixing mechanism further includes a clamping frame pivoted to the base. A slot is formed on the clamping frame, and the clamping frame and the supporting component are for clamping the first object together when the protrusion of the base is inserted inside the slot. The clamping frame includes a shaft inserted into the first hole so that the clamping frame is pivoted to the base. The fixing mechanism further includes a fixing component for clamping a second object with the base.
According to the claimed invention, the base is a hollow cylindrical structure.
According to the claimed invention, a guiding slot is formed on the base, and the supporting component includes a hook for hooking inside the guiding slot.
According to the claimed invention, a second hole is formed on the first object, a breach is formed on an end of the clamping frame, and the supporting component further includes a pin for inserting into the second hole of the first object and the breach of the clamping frame so as to fix the first object.
According to the claimed invention, the fixing mechanism further includes a grounding portion disposed on a side of the base. The fixing component is a grounding component for electrically connecting to the grounding portion and for contacting with the shaft so as to ground the first object.
According to the claimed invention, the fixing component is a screw.
According to the claimed invention, the first object is a board.
According to the claimed invention, the board is a circuit board.
According to the claimed invention, the elastic component is a spring.
According to the claimed invention, an electronic device includes a cover, a board disposed inside the cover, and a fixing mechanism for fixing the board inside the cover. The fixing mechanism includes a base disposed on a side of the cover, whereon a protrusion and a first hole are formed, an elastic component installed inside the base, and a supporting component wedged inside the base. An end of the supporting component contacts against the elastic component, and the other end of the supporting component supports the board. The fixing mechanism further includes a clamping frame pivoted to the base. A slot is formed on the clamping frame, and the clamping frame and the supporting component clamp the first object together when the protrusion of the base is inserted inside the slot. The clamping frame includes a shaft inserted into the first hole so that the clamping frame is pivoted to the base. The fixing mechanism further includes a fixing component for clamping the cover on the base.
According to the claimed invention, a third hole is formed on the cover, and the fixing component passes through the third hole for contacting with the shaft.
According to the claimed invention, the grounding portion is made of conductive material formed on the cover by sputtering or evaporating.
According to the claimed invention, the electronic device further includes a storage module, and the board is a frame for covering the storage module.
These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
Please refer to
In addition, a slot 76 is formed on the clamping frame 72. When the clamping frame 72 rotates relative to the base 58 to a clamping position as shown in
Assembling sequences of the fixing mechanism 56 for fixing the board 54 are introduced as follows. First, the second hole 78 of the board 54 is aligned with the pin 82 of the supporting component 68, and the pin 82 of the supporting component 68 is inserted into the second hole 78 of the board 54, so that the board 54 is put on the supporting component 68. Then, the clamping frame 72 is rotated relative to the base 58 to the clamping position as shown in
Please refer to
The board 54 not only can be a circuit board, but also can be other kinds of fixing frames. Please refer to
Comparing to the prior art, the fixing mechanism of the present invention utilizes the rotational clamping frame to fix the board, so that the assembling process can be simplified and probability of the assembling failures can be decreased. Because the fixing mechanism of the present invention is assembled easily, labor hours and labor cost can be economized. In addition, the fixing mechanism can utilize the elastic component to absorb the shock and to optimize of shock-proof function by adjusting elasticity of the elastic component. Furthermore, the present invention can be suitable for different kinds of boards with different thicknesses by adjusting the elastic component and height of the base, so that the present invention can provide more design flexibility. The present invention can further reduce the assembly tolerance effectively, which means the board can be screwed in equilibrium with the fixing mechanism and the other fixing devices, so that the fixing mechanism can prevent the board from inducing the planar stress and from causing the local failure due to stress concentration, such as preventing electronic components on the circuit board from being broken easily. When the circuit board is impacted, the fixing mechanism of the present invention can absorb the shock effectively.
Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention.
Number | Date | Country | Kind |
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098110535 | Mar 2009 | TW | national |