This application claims the priority benefit of Taiwan patent application number 108102355 filed on Jan. 22, 2019.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a base fastener and, in particular, to a base fastener which is used as an intermediate object for other screws or fasteners to be fixed on the base.

Description of Prior Art

The electronic apparatus is equipped with various electronic devices that are responsible to perform different operations for the electronic apparatus. In particular, the central processing unit or other chips generate considerable heat during operation and require additional heat dissipating devices to prevent the central processing unit or other chips from burning out.

The commonly used heat dissipating device can be the cooler, the vapor chamber, or the cooling fins. In addition, the heat dissipating device has to be tightly attached to the chips, the central processing unit, or the heat source for seamless contact such that the heat can be dissipated with a minimal thermal resistance caused by the gap. In general, the heat dissipating device is fixed to the motherboard using screw units. The motherboard uses another screw unit penetrating from the opposite side to couple the nut units with internal threads disposed on the heat dissipating device to achieve the fixing between the motherboard and the heat dissipating device. In addition, the nut units disposed on the heat dissipating device are required to remain temporarily on the heat dissipating device by means of nut washer units to avoid separation. The nut washer unit is made of plastic and has at least two extending projections. The extending projections are used to pass through the throughholes which are pre-formed for the penetration and fastening of the extending projections on the heat dissipating device. Then, the ends of the extending projections are flattened with the high-temperature melting to form the stoppers which can prevent the extending projections from being pulled out and fix the nut washer units to the heat dissipating device.

However, the design of the extending projections encounters the following problems. The high-temperature melting and the cooling process individually take much time. Also, it is a complicated and time-consuming process to deflash the extending projections after the high-temperature melting process. The reworking cannot be performed. Thus, to overcome the above disadvantages of the prior art is the target to be reached by the present invention.

SUMMARY OF THE INVENTION

To solve the above-mentioned problems effectively, the main objective of the present invention is to provide a base fastener which can improve the fast and reliable assembly between the nut washer and the heat dissipating device.

To achieve the above objective, the present invention provides a base fastener disposed corresponding to a pair of arc holes on a base. The base fastener comprises a body.

The body has a first side, a second side, and a throughhole. The throughhole penetrates through the first side and the second side. A first post and a second post protrude from the second side beside the throughhole. The first post, the second post, and the pair of arc holes are disposed correspondingly and are rotatably connected to each other.

By means of the base fastener of the present invention, which provides a fast and simple way of assembly and disassembly for the base, the complicated manufacturing process and the failure in reworking associated with the prior art can be improved.

