TWI543693B - Cooling fan frame - Google Patents

Description

Cooling fan frame

The present invention relates to a frame, and more particularly to a frame for a heat dissipation fan.

Referring to FIG. 1 , the conventional cooling fan 11 is firstly locked to a heat dissipation fin 12 , and the heat dissipation fin 12 is closely attached to a wafer 131 of a circuit board 13 . Thereby, the thermal energy generated during the operation of the wafer 131 is absorbed and conducted by the heat dissipation fins 12, and the heat dissipation fins 12 are cooled by the airflow generated by the heat dissipation fan 11 to achieve heat dissipation of the wafer 131.

However, the heat dissipation fan 11 still has the following disadvantages: (1) When the heat dissipation fan 11 is assembled, the blade 113 made of a plastic material needs to be locked with the housing 112, and a lock needs to be formed on the housing 112. The hole 110 is locked with the heat dissipation fin 12, so that the manufacturing and assembling process of the heat dissipation fan 11 is complicated; (2) after the assembly of the heat dissipation fan 11 is completed, the heat dissipation fin 12 needs to be locked again, and the whole The assembly procedure is also complicated.

Accordingly, it is an object of the present invention to provide a frame for a heat dissipating fan that simplifies the components and assembly procedures of the heat dissipating device.

Thus, the frame of the cooling fan of the present invention is used to install a fan a leaf unit, the frame comprising a housing made of a heat conductive material and surrounding an accommodating space, a substrate made of a heat conductive material and connected to the housing and blocking one side of the accommodating space, And a shaft seat made of a heat conductive material and detachably attached to the substrate and provided for the blade unit.

The substrate includes a mounting hole at the center, and a plurality of mutual A locking hole spaced around the mounting hole, and a plurality of air outlets spaced apart from each other and surrounding the locking holes. The shaft base includes a shaft tube portion that is inserted into the mounting hole of the substrate and is used for mounting the blade unit, and a plate body portion extending radially outward from the outer peripheral surface of the shaft tube portion and spaced apart from the substrate And a plurality of hook portions extending from the plate body portion toward the substrate and correspondingly extending to the locking holes.

The effect of the invention is that the pedestal card is detachable through the shaft seat It is disposed on the substrate, so that the assembly efficiency can be improved, and the whole of the frame is made of a heat conductive material, thereby greatly improving the heat conduction efficiency. Therefore, by using the frame of the invention, the heat dissipation fins can be disposed without additional cost. Material and assembly costs.

2‧‧‧Shell

21‧‧‧ accommodating space

3‧‧‧Substrate

31‧‧‧Installation Department

32‧‧‧Connecting Department

33‧‧‧Installation holes

34‧‧‧Card hole

35‧‧‧air outlet

4‧‧‧ shaft seat

41‧‧‧ shaft tube department

42‧‧‧ Board Department

43‧‧‧K hook section

5‧‧‧Vibration parts

A‧‧‧ arrow

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is an exploded perspective view showing the use of the conventional cooling fan; FIG. 2 is an exploded perspective view of the present invention. A first embodiment of a frame for inventing a heat dissipating fan; FIG. 3 is a perspective view for explaining a combination of components of FIG. 2; FIG. 4 is a cross-sectional view for assistance between a substrate and a shaft seat of FIG. FIG. 5 is an exploded perspective view showing another aspect of the first embodiment; FIG. 6 is a cross-sectional view for explaining a combination of components in FIG. 5; and FIG. 7 is a cross-sectional view illustrating A second embodiment of the frame of the heat dissipation fan of the present invention.

Referring to FIG. 2 and FIG. 3, a first embodiment of the frame of the heat dissipation fan of the present invention is configured to mount a blade unit (not shown), and the frame comprises a heat conductive material and surrounds an accommodating space 21 a housing 2, a substrate 3 made of a heat conductive material and connected to the housing 2 and blocking one side of the accommodating space 21, and a substrate made of a heat conductive material and detachably attached thereto A shaft seat 4 on the substrate 3. In the embodiment, the housing 2 and the base plate 3 are made of a heat conductive metal, and the shaft base 4 is made of a heat conductive plastic.

Referring to FIG. 2 and FIG. 4 , the substrate 3 includes a mounting portion 31 for the shaft base 4 , a connecting portion 32 extending from the mounting portion 31 and connected to the housing 2 , and a mounting portion 32 . a mounting hole 33 at a center of the 31, a plurality of locking holes 34 spaced apart from each other on the mounting portion 31 and surrounding the mounting hole 33, and a plurality of air outlets 35 spaced apart from each other and surrounding the locking holes 34, Each air outlet 35 is defined by the mounting portion 31, two adjacent connecting portions 32, and the housing 2 .

The shaft base 4 includes a shaft tube portion 41 that is inserted into the mounting hole 33 of the substrate 3 and is used to mount the blade unit, and an outer circumference of the shaft tube portion 41. a plate portion 42 extending radially outwardly from the substrate 3 and a plurality of hooks extending from the plate portion 42 toward the substrate 3 and correspondingly extending to the card holes 34 Part 43.

The shaft base 4 is detachably attached to the base plate 3 through the shaft base 4, Therefore, when the hook portions 43 of the shaft base 4 are respectively aligned with the locking holes 34 of the base plate 3 and slightly biased, the shaft base 4 can be locked on the base plate 3. . When the shaft base 4 is detached from the base plate 3, the shaft base 4 can be detached by slightly biasing the hook portions 43, and the assembly efficiency can be greatly improved.

When the invention is used, it is directly glued to a fever A component (not shown) is combined, since the housing 2 and the substrate 3 are both made of a heat conductive metal, the heat energy generated by the heat generating component can be quickly absorbed and conducted, and as shown in FIGS. 3 and 4, when the blade is When the unit is in operation, the air flow is blown by the air outlets 35 in the direction indicated by the arrow A in FIG. 4, and the heat energy absorbed by the substrate 3 and the housing 2 can be taken away, so that the housing 2 is actually It can exert and replace the heat absorption effect of the same heat dissipation fins, and then achieve the heat dissipation effect by the airflow generated by the operation of the blade unit.

The shaft seat 4 of the present invention is detachable through the blade unit The grounding card is disposed on the substrate 3, so that it is not necessary to separately manufacture the housing for the fan blade unit as described in the prior art, and it is not necessary to provide a locking hole to be combined with the heat dissipation fin on the housing. Therefore, the present invention can improve the assembly efficiency. Furthermore, the present invention can exert the effect of the heat dissipation fins through the housing 2, so that the invention does not need to be additionally used with the heat dissipation fins, thereby effectively saving materials and assembly costs. . Referring to Figures 5 and 6, the shell is provided Another aspect of seat 2.

Referring to FIG. 7, a second embodiment of the frame of the heat dissipation fan of the present invention differs from the first embodiment in that the frame further includes a plate body sandwiching the mounting portion 31 of the substrate 3 and the shaft base 4. The shock absorbing member 5 between the portions 42. The material of the shock absorbing member 5 may be selected from wool felt, but is not limited thereto. With this design, in addition to the effect of the first embodiment, the vibration feeling or the vibration noise generated when the blade unit is operated can be reduced, and the use quality is further improved.

In summary, the frame of the heat dissipation fan of the present invention is detachably attached to the substrate 3 through the shaft base 4, thereby improving assembly efficiency, and the entire frame is made of a heat conductive material. The heat conduction efficiency is greatly improved, so that the frame of the invention can be used, so that no additional fins can be provided, which can effectively save materials and assembly costs. If used with the shock absorbing member 5, the vibration or vibration noise during operation can be reduced. Therefore, the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

2‧‧‧Shell

21‧‧‧ accommodating space

3‧‧‧Substrate

31‧‧‧Installation Department

32‧‧‧Connecting Department

33‧‧‧Installation holes

34‧‧‧Card hole

4‧‧‧ shaft seat

41‧‧‧ shaft tube department

42‧‧‧ Board Department

43‧‧‧K hook section

A‧‧‧ arrow

Claims (3)

A heat dissipation fan frame for mounting a blade unit, the frame comprising: a shell seat made of a heat conductive material and surrounding an accommodating space; a substrate made of a heat conductive material and connected to the shell seat And a side of the substrate that covers the accommodating space, the substrate includes a mounting hole at the center, a plurality of locking holes spaced apart from each other and surrounding the mounting hole, and a plurality of mutually spaced and surrounding the locking holes An air outlet; a shaft seat, which is made of a heat conductive material and is detachably attached to the substrate and provided for the blade unit, the shaft base includes a mounting hole inserted in the substrate and is used for mounting the blade a shaft tube portion of the unit, a plate body portion extending radially outward from the outer peripheral surface of the shaft tube portion and spaced apart from the substrate, and a plurality of plate body portions extending from the plate body portion toward the substrate and respectively extending correspondingly a hook portion of the card hole; and a shock absorbing member interposed between the substrate and the body portion of the shaft seat. The frame of the heat dissipation fan of claim 1, wherein the substrate further comprises a mounting portion for the shaft tube portion of the shaft seat, and a connecting portion extending from the mounting portion and connected to the housing portion Each air outlet is defined by the mounting portion, two adjacent connecting portions, and the housing. The mounting hole and the locking holes are formed on the mounting portion. The frame of the heat dissipation fan of claim 1, wherein the housing and the base plate are made of a heat conductive metal, and the shaft base is made of a heat conductive plastic.