HEAT DISSIPATING FIN ASSEMBLY
A heat dissipating fin assembly includes a bottom plate, a plurality of first heat dissipating fins, a plurality of second heat dissipating fins, an inner cover plate and an outer cover plate. The first heat dissipating fins extend from an inner end to an outer end. The second heat dissipating fins are located between two of the first heat dissipating fins. The inner cover plate is disposed at the inner end and connected to the first heat dissipating fins. The outer cover plate is disposed at the outer end and connected to the second heat dissipating fins. The outer cover plate and the inner cover plate are separated so as to form an opening. The second heat dissipating fins extend from around the opening to the outer end. The length of the first heat dissipating fins is larger than that of the second heat dissipating fins.
This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 103122426 filed in Taiwan, Republic of China on Jun. 27, 2014, the entire contents of which are hereby incorporated by reference.
BACKGROUND OF THE INVENTION1. Field of Invention
The present invention relates to a heat dissipating fin assembly and, in particular, to a heat dissipating fin assembly with dusting function.
2. Related Art
The electronic products are developed with higher performance, higher frequency, higher speed, and lighter and thinner structure. However, these features make the internal temperature of the electronic products become higher and higher, which may cause the product unstable and thus affect the reliability of the products. Therefore, the existing electronic products are usually equipped with a fan to dissipate the generated heat.
Regarding to a common heat-dissipating fan, the outlet of the fan located adjacent to the heat dissipating fin assembly will accumulate with great amount of dusts, which may come from the air. The accumulated dust can sufficiently affect the rotation speed and heat dissipating efficiency of the heat-dissipating fan.
Therefore, it is an important subject to provide a heat dissipating fin assembly which can provide a dusting function easily so as to improve the heat dissipating efficiency.
SUMMARY OF THE INVENTIONIn view of the foregoing subject, an objective of the present invention is to provide a heat dissipating fin assembly which can provide a dusting function easily so as to improve the heat dissipating efficiency.
To achieve the above objective, the present invention discloses a heat dissipating fin assembly suitable for a fan, which includes a bottom plate, a plurality of first heat dissipating fins, a plurality of second heat dissipating fins, an inner cover plate and an outer cover plate. The heat dissipating fin assembly has an inner end adjacent to the fan and an outer end away from the fan. The first heat dissipating fins are disposed on the bottom plate side by side and extend from the inner end to the outer end. The second heat dissipating fins are disposed on the bottom plate and located between two of the first heat dissipating fins. The inner cover plate is disposed at the inner end and connected to one side of the first heat dissipating fins away from the bottom plate. The outer cover plate is disposed at the outer end and connected to one side of the second heat dissipating fins away from the bottom plate. The outer cover plate and the inner cover plate are separated so as to form an opening. The second heat dissipating fins extend from around the opening to the outer end, and the length of the first heat dissipating fins is larger than that of the second heat dissipating fins.
In one embodiment, each of the second heat dissipating fins has a slant edge corresponding to the position of the opening, and the slant edge extends obliquely and upwardly from the inner end to the outer end.
In one embodiment, the fan is a centrifugal fan.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with one of the second heat dissipating fins.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with at least two of the second heat dissipating fins.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with different amount of the second heat dissipating fins.
In one embodiment, a hole is configured on a side wall of a fan frame of the fan adjacent to an outlet.
In one embodiment, any adjacent two of the first heat dissipating fins located close to the hole are interposed with less amount of the second heat dissipating fins, while any adjacent two of the first heat dissipating fins located away from the hole are interposed with greater amount of the second heat dissipating fins.
To achieve the above objective, the present invention also discloses a heat dissipating fin assembly suitable for a fan, which includes a plurality of first heat dissipating fins and a plurality of second heat dissipating fins. The heat dissipating fin assembly has an inner end adjacent to the fan and an outer end away from the fan. Each of the first heat dissipating fins includes a first fin body, a first bottom extension portion, a first inner cover extension portion and a first outer cover extension portion. The first bottom extension portion turns and extends from the first fin body. The first inner cover extension portion is disposed at the inner end and connected to one side of the first fin body away from the first bottom extension portion. The first outer cover extension portion is disposed at the outer end and connected to one side of the first fin body away from the first bottom extension portion. Each of the second heat dissipating fins includes a second fin body, a second bottom extension portion and a second outer cover extension portion. The second bottom extension portion turns and extends from the second fin body. The second outer cover extension portion is disposed at the outer end and connected to one side of the second fin body away from the second bottom extension portion. The length of the first heat dissipating fins is larger than that of the second heat dissipating fins. The second heat dissipating fins and the first heat dissipating fins are arranged side by side. The first inner cover extension portions, the first outer cover extension portions and the second outer cover extension portions form an opening.
In one embodiment, each of the second fin bodies has a slant edge corresponding to the position of the opening, and the slant edge extends obliquely and upwardly from the inner end to the outer end.
In one embodiment, the fan is a centrifugal fan.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with one of the second heat dissipating fins.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with at least two of the second heat dissipating fins.
In one embodiment, any adjacent two of the first heat dissipating fins are interposed with different amount of the second heat dissipating fins.
In one embodiment, a hole is configured on a side wall of a fan frame of the fan adjacent to an outlet.
In one embodiment, any adjacent two of the first heat dissipating fins located close to the hole are interposed with less amount of the second heat dissipating fins, while any adjacent two of the first heat dissipating fins located away from the hole are interposed with greater amount of the second heat dissipating fins.
As mentioned above, the inner end of the heat dissipating fin assembly of the invention has lower density of heat dissipating structure (the first heat dissipating fins), and the outer end of the heat dissipating fin assembly has higher density of heat dissipating structure (including the first and second heat dissipating fins). The lower density heat dissipating structure at the inner end can avoid the accumulation of dusts, and the higher density heat dissipating structure at the outer end can maintain a larger heat dissipating surface area. The heat dissipating fin assembly further includes an inner cover plate and an outer cover plate, and an opening is defined between the inner and outer cover plates. As a result, the dusts can be exhausted through the opening, thereby achieving the effects of dusting and improved heat dissipating efficiency.
In another embodiment, the inner end of the heat dissipating fin assembly has lower density of heat dissipating structure (the first fin bodies), and the outer end of the heat dissipating fin assembly has higher density of heat dissipating structure (including the first and second fin bodies). In addition, the first inner cover extension portion, the first outer cover extension portion and the second outer cover extension portion form an opening. This configuration can also provide a lower density heat dissipating structure at the inner end to avoid the accumulation of dusts, and a higher density heat dissipating structure at the outer end to maintain a larger heat dissipating surface area. Besides, the dusts entering the heat dissipating fin assembly through the inner end can be ejected via the opening.
The present invention will become more fully understood from the subsequent detailed description and accompanying drawings, which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
The invention will be described in detail with reference to
Referring to
In this embodiment, the block 15, 15a, 15b or 15c shields one side of the heat dissipating fin assembly 14 away from the impeller 12. In more detailed, the block 15, 15a, 15b or 15c can shield the outlets of the heat dissipating channels C. In other embodiments, the block 15, 15a, 15b or 15c may shield one side of the heat dissipating fin assembly 14 adjacent to the impeller 12. That is, the block 15, 15a, 15b or 15c can shield the inlets of the heat dissipating channels C. No matter the block 15, 15a, 15b or 15c shields the inlets or outlets of the heat dissipating channels C, the air can be blocked inside the heat dissipating device 1a and cannot be exhausted through the heat dissipating channels C. Furthermore, the configuration of the hole can provide an excellent dusting effect.
Referring to
In this embodiment, the heat dissipating device 1a further includes a shielding member 16 moveably connected to the edge of the hole O1. In more detailed, the shielding member 16 is disposed at a position of the side wall S adjacent to the hole O1. The shielding member 16 is movable between the second open position PO2 and the second close position PC2 (see
In practice, if the heat dissipating device 1a needs a dusting procedure, the block 15 is controlled to shield the heat dissipating channels C of the heat dissipating fin assembly 14 while the shielding member 16 does not shield the hole O1. Accordingly, the dusts accumulated at the joint position of the outlet 112 and the heat dissipating fin assembly 14 are blew to the hole O1, thereby exhausting the dusts through the hole O1 and thus achieving the goal of dusting. Regarding to the aspect as shown in
If the heat dissipating device 1a is in a normal operation and does not perform a dusting procedure, as shown in
In this embodiment, the second heat dissipating fin 1412 has a slant edge L corresponding to the position of the opening O3. The slant edge L extends obliquely and upwardly from the inner end E1 to the outer end E2. Accordingly, the dusts can be more easily ejected, along the slant edge L, through the opening O3.
In this embodiment, the length of the first heat dissipating fins 1411 is larger than that of the second heat dissipating fins 1412. Herein, the “length” represents the length of the first heat dissipating fins 1411 or the second heat dissipating fins 1412 in the direction from the inner end E1 to the outer end E2. Herein, the first heat dissipating fins 1411 and the second heat dissipating fins 1412 are arranged side by side, and two adjacent first heat dissipating fins 1411 are interposed with one second heat dissipating fin 1412, for example. In practice, the heat dissipating fins 1411 and the second heat dissipating fins 1412 are arranged side by side through a riveting method. Due to the above side-by-side structure, the first inner cover extension portion 14113, the first outer cover extension portion 14114 and the second outer cover extension portion 14124 can form an opening O4. According to the above structure, the inner end E1 of the heat dissipating fin assembly 14d has lower density of heat dissipating structure (the first fin bodies), and the outer end E2 of the heat dissipating fin assembly 14d has higher density of heat dissipating structure (including the first and second fin bodies). The lower density heat dissipating structure at the inner end E1 can avoid the accumulation of dusts, and the higher density heat dissipating structure at the outer end E2 can maintain a larger heat dissipating surface area. The dusts entering the heat dissipating fin assembly 14dthrough the inner end E1 can be exhausted through the opening O4, thereby achieving the effects of dusting and improved heat dissipating efficiency.
Similarly, in this embodiment, the second fin body 14121 has a slant edge L corresponding to the position of the opening O4. The slant edge L extends obliquely and upwardly from the inner end E1 to the outer end E2. Accordingly, the dusts entering the heat dissipating fin assembly 14d can be more easily ejected, along the slant edge L, through the opening O4.
In summary, the inner end of the heat dissipating fin assembly of the invention has lower density of heat dissipating structure (the first heat dissipating fins), and the outer end of the heat dissipating fin assembly has higher density of heat dissipating structure (including the first and second heat dissipating fins). The lower density heat dissipating structure at the inner end can avoid the accumulation of dusts, and the higher density heat dissipating structure at the outer end can maintain a larger heat dissipating surface area. The heat dissipating fin assembly further includes an inner cover plate and an outer cover plate, and an opening is defined between the inner and outer cover plates. As a result, the dusts can be exhausted through the opening, thereby achieving the effects of dusting and improved heat dissipating efficiency.
In another embodiment, the inner end of the heat dissipating fin assembly has lower density of heat dissipating structure (the first fin bodies), and the outer end of the heat dissipating fin assembly has higher density of heat dissipating structure (including the first and second fin bodies). In addition, the first inner cover extension portion, the first outer cover extension portion and the second outer cover extension portion form an opening. This configuration can also provide a lower density heat dissipating structure at the inner end to avoid the accumulation of dusts, and a higher density heat dissipating structure at the outer end to maintain a larger heat dissipating surface area. Besides, the dusts entering the heat dissipating fin assembly through the inner end can be ejected via the opening.
Although the present invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the present invention.
Claims
1. A heat dissipating fin assembly suitable for a fan, wherein the heat dissipating fin assembly has an inner end adjacent to the fan and an outer end away from the fan, the heat dissipating fin assembly comprising:
- a bottom plate;
- a plurality of first heat dissipating fins disposed on the bottom plate side by side and extending from the inner end to the outer end;
- a plurality of second heat dissipating fins disposed on the bottom plate and located between two of the first heat dissipating fins;
- an inner cover plate disposed at the inner end and connected to one side of the first heat dissipating fins away from the bottom plate; and
- an outer cover plate disposed at the outer end and connected to one side of the second heat dissipating fins away from the bottom plate, wherein the outer cover plate and the inner cover plate are separated so as to form an opening;
- wherein, the second heat dissipating fins extend from around the opening to the outer end, and the length of the first heat dissipating fins is larger than that of the second heat dissipating fins.
2. The heat dissipating fin assembly of claim 1, wherein each of the second heat dissipating fins has a slant edge corresponding to the position of the opening, and the slant edge extends obliquely and upwardly from the inner end to the outer end.
3. The heat dissipating fin assembly of claim 1, wherein the fan is a centrifugal fan.
4. The heat dissipating fin assembly of claim 1, wherein any adjacent two of the first heat dissipating fins are interposed with one of the second heat dissipating fins.
5. The heat dissipating fin assembly of claim 1, wherein any adjacent two of the first heat dissipating fins are interposed with at least two of the second heat dissipating fins.
6. The heat dissipating fin assembly of claim 1, wherein any adjacent two of the first heat dissipating fins are interposed with different amount of the second heat dissipating fins.
7. The heat dissipating fin assembly of claim 1, wherein a hole is configured on a side wall of a fan frame of the fan adjacent to an outlet.
8. The heat dissipating fin assembly of claim 7, wherein any adjacent two of the first heat dissipating fins located close to the hole are interposed with less amount of the second heat dissipating fins, while any adjacent two of the first heat dissipating fins located away from the hole are interposed with greater amount of the second heat dissipating fins.
9. A heat dissipating fin assembly suitable for a fan, wherein the heat dissipating fin assembly has an inner end adjacent to the fan and an outer end away from the fan, the heat dissipating fin assembly comprising:
- a plurality of first heat dissipating fins, wherein each of the first heat dissipating fins comprises a first fin body, a first bottom extension portion, a first inner cover extension portion and a first outer cover extension portion, the first bottom extension portion turns and extends from the first fin body, the first inner cover extension portion is disposed at the inner end and connected to one side of the first fin body away from the first bottom extension portion, and the first outer cover extension portion is disposed at the outer end and connected to one side of the first fin body away from the first bottom extension portion; and
- a plurality of second heat dissipating fins, wherein each of the second heat dissipating fins comprises a second fin body, a second bottom extension portion and a second outer cover extension portion, the second bottom extension portion turns and extends from the second fin body, the second outer cover extension portion is disposed at the outer end and connected to one side of the second fin body away from the second bottom extension portion;
- wherein, the length of the first heat dissipating fins is larger than that of the second heat dissipating fins, the second heat dissipating fins and the first heat dissipating fins are arranged side by side, and the first inner cover extension portions, the first outer cover extension portions and the second outer cover extension portions form an opening.
10. The heat dissipating fin assembly of claim 9, wherein each of the second fin bodies has a slant edge corresponding to the position of the opening, and the slant edge extends obliquely and upwardly from the inner end to the outer end.
11. The heat dissipating fin assembly of claim 9, wherein the fan is a centrifugal fan.
12. The heat dissipating fin assembly of claim 9, wherein any adjacent two of the first heat dissipating fins are interposed with one of the second heat dissipating fins.
13. The heat dissipating fin assembly of claim 9, wherein any adjacent two of the first heat dissipating fins are interposed with at least two of the second heat dissipating fins.
14. The heat dissipating fin assembly of claim 9, wherein any adjacent two of the first heat dissipating fins are interposed with different amount of the second heat dissipating fins.
15. The heat dissipating fin assembly of claim 9, wherein a hole is configured on a side wall of a fan frame of the fan adjacent to an outlet.
16. The heat dissipating fin assembly of claim 15, wherein any adjacent two of the first heat dissipating fins located close to the hole are interposed with less amount of the second heat dissipating fins, while any adjacent two of the first heat dissipating fins located away from the hole are interposed with greater amount of the second heat dissipating fins.
Type: Application
Filed: Mar 31, 2015
Publication Date: Dec 31, 2015
Inventors: Shu-Cheng YANG (Taoyuan City), Chih-Hsiang CHANG (Taoyuan City), Shih-Chou CHEN (Taoyuan City)
Application Number: 14/675,119