Vibration Proof Structure Of Fan
A vibration proof structure of a fan is provided. The vibration proof structure includes a frame, a plurality of buffer members, and a plurality of rigid rods. The frame is adapted for assembling with a blade assembly. The buffer members are assembled to the frame. The rigid rods are assembled inside the buffer members, respectively. Each of the rigid rods comprises an axially penetrated through hole. After the fan is secured to the object to which the fan is desired to be assembled, the vibration caused in the operation of the fan can be effectively absorbed by the buffer members, and thus the noises can be eliminated.
1. Field of the Invention
The present invention relates generally to a fan adapted for agitating the air to generate air convection.
2. The Prior Arts
CPUs or various chips are usually main heat sources in computers or electronic equipment. A superior CPU or chip is often featured with a faster computation speed, and typically generates more heat. If the heat generated by the CPU or chip cannot be effectively dissipated out therefrom, the heat will cause a high temperature which may adversely affect or even damage the electronic component. Heat dissipation modules are widely employed in heat source contained equipments, e.g., computer hosts. When more heat sources are contained in a computer host, more heat dissipation modules are usually demanded therein.
A typical heat dissipation module usually includes heat dissipation fins, and a fan. The heat dissipation fins are usually assembled on the CPU or chip, while the fan is assembled to the fins. The heat generated by the CPU or chip can be directly conducted to the fins for achieving a large heat dissipation area thereby. The fan generates airflow to flowing over the fins for dissipating the heat out. Conventionally, the fan is usually assembled to the fins by providing a screw bolt to insert through a through hole configured at a frame of the fan, and then locking the screw bolt into a screw hole configured in the fins. The frame of the fan and the fins are all made of rigid materials, and therefore, when the fan is in operation, a resonance maybe occur which often causes noises. Specifically, current PCs have been drastically improved to achieve very high performance, thus requiring more heat dissipation modules. Accordingly, the noise may also increase, and thus should be considered to find a corresponding solution.
SUMMARY OF THE INVENTIONA primary objective of the present invention is to provide a solution for eliminating the noise caused by resonance occurred during the operation of the fan.
According to the present invention, a vibration absorptive buffer member is provided at a position where the fan is assembled with a secure member, for eliminating the noise caused by the operation of the fan.
According to an embodiment of the present invention, a secure groove is configured at a position at a periphery of a frame of the fan where the fan is predetermined to be assembled with the secure member. And the buffer member is provided in the secure groove. The buffer member is further provided with a rigid rod. The rigid rod is configured with an axially penetrated through hole for allowing the secure member to penetrate therethrough so as to secure the fan to any object to which the fan is desired to be locked. When the fan is locked to the object, the buffer member and the rigid rod are in contact with the object, while the body of the fan is not contacted with the object. Therefore, a resonance between the fan and the object can be prevented, and thus the noise is also eliminated.
According to an embodiment of the present invention, the secure groove is a dove-tail groove, and a protrusion rib having a through hole is configured in the secure groove. The frame of the fan is arranged in a mold, and an integral molding process is executed to provide a plastic soft material inside the secure groove. During the integral molding process, the plastic soft material is also fitted in the through hole of the protrusion rib for engagement. The plastic soft material is then solidified thus forming a soft buffer member.
According to an embodiment of the present invention, prior to providing the buffer member into the secure groove, the rigid rod is positioned at a suitable position of the secure groove of the frame which is arranged in the mold. When an injection molding process is executed to form the buffer member, the plastic soft material of the buffer member encloses the rigid rod, and only two ends of the rigid rod are exposed out from two sides of the buffer member, respectively, so as to allow the secure member to penetrate therethrough.
According to an embodiment of the present invention, a flection member is configured at an outer surface of the rigid rod, for achieving an improved assembly between the rigid rod and the buffer member.
The present invention will be apparent to those skilled in the art by reading the following detailed description of a preferred embodiment thereof, with reference to the attached drawings, in which:
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
When fabricating the vibration proof structure of the fan 1, the frame 11 and the rigid rod 3 are arranged in a mold, and a molten material, e.g., rubber, plastic, or silica gel is injected into mold cavities of the mold for configuring the buffer member 2. The molten material is filled in the secure groove 110 and encloses the protrusion rib 111 and the rigid rod 3. Meanwhile, the molten material is also filled into the through hole 112 and the flection member 32. The molten material is solidified, thus forming the buffer member 2 inside the secure groove 110. At the same time, the rigid rod 3 is also secured inside the buffer member 2, as shown in
According to the embodiment of the present invention, the secure member is preferably a screw bolt adapted for penetrating the through hole 31 of the rigid rod 3 which is secured inside the buffer member 2 for locking the fan 1 to the object. After the fan 1 is secured to the object, the vibration caused in the operation of the fan 1 can be effectively absorbed by the buffer members 2, and thus the noises can be eliminated.
Although the present invention has been described with reference to the preferred embodiments thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
Claims
1. A vibration proof structure of a fan, comprising:
- a frame, adapted for assembling with a blade assembly;
- a plurality of buffer members, assembled to the frame; and
- a plurality of rigid rods, assembled inside the buffer members, respectively, wherein each of the rigid rods is configured with an axially penetrated through hole.
2. The vibration proof structure according to claim 1, wherein a plurality of secure grooves are configured at a periphery of the frame, and the buffer members are assembled inside the secure grooves, respectively.
3. The vibration proof structure according to claim 2, wherein the secure grooves are dove-tail grooves.
4. The vibration proof structure according claim 3, wherein the buffer members are made of a resilient material.
5. The vibration proof structure according to claim 4, wherein each of the secure grooves is configured with a protrusion rib having a through hole, and the buffer members are formed inside the secure grooves and enclosing the protrusion ribs by executing a molding process.
6. The vibration proof structure according to claim 1, wherein a flection member is configured at an outer surface of each of the rigid rods, and the flection member and the outer surface are enclosed by the buffer members.
Type: Application
Filed: Mar 3, 2009
Publication Date: Sep 9, 2010
Inventor: Tai-Chi Huang (Kaohsiung)
Application Number: 12/397,346
International Classification: F28F 7/00 (20060101);