TWI468591B - Fan assembly - Google Patents

Description

Fan combination

The present invention relates to a fan assembly, and more particularly to a fan assembly for dissipating heat from a heat-generating electronic component.

With the rapid development of the information industry, the heat-generating electronic components such as the central processing unit are developing toward high performance and high speed, resulting in more and more heat generated by the heat-generating electronic components. If the heat is not dissipated in time, it will be serious. Affects the reliability and service life of the heat-generating electronic components, and even causes damage to the heat-generating electronic components. Therefore, the heat dissipation problem has become one of the important issues in many electronic products. To this end, the industry usually installs a fan in the electronic product to dissipate heat from the heat-generating electronic components. When a single fan cannot meet the heat dissipation requirements, a fan combination is often used to dissipate heat.

The fan assembly is composed of two or more fans, each fan includes a frame and a fan wheel housed in the fan frame, and the fan frames of the adjacent two fans are connected by a plurality of external connectors, such as screws. connected. However, the connectors not only increase the difficulty and time of assembly of the fan assembly, but also increase the cost of production.

In view of this, it is necessary to provide a fan assembly that is easy to assemble and low in cost.

A fan assembly includes a first fan and a second fan coupled to the first fan, the first fan includes a first fan frame, and the second fan includes a second fan frame, the first fan frame The top end is provided with at least one pair of first fixing pieces disposed face to face, each The first fixing piece is provided with one first hook portion protruding from another first fixing piece paired therewith, and the bottom end of the second frame frame is provided with at least one pair of second fixing pieces disposed back to back, each second solid The sheet is provided with a second hook portion protruding in a direction opposite to another second fixing piece paired therewith, the at least one pair of second fixing pieces being located between the at least one pair of first fixing pieces, and the at least one pair of second The second hook portion of the fixing piece respectively hooks the first hook portion of the at least one pair of first fixing pieces.

Compared with the prior art, the fan assembly is connected by a fixing piece provided with a hook portion on the first fan and the second fan, and can be operated only by pressing operation during assembly, and is convenient to operate, and The first and second fixing pieces are integrally formed with the first and second fan frames, respectively, and the external connecting members are not required, which reduces the production cost.

10‧‧‧First fan

11,11a,21,21a‧‧‧Fan frame

12,22‧‧‧fan wheel

20‧‧‧second fan

100‧‧‧fan combination

110,210‧‧‧ duct

112, 112a, 212, 212a‧‧‧Flange

113‧‧‧First fixed piece

114‧‧‧ inside side

115, 215‧‧ ‧ hook

116,216‧‧‧Slope

213‧‧‧Second fix

214‧‧‧ outside side

217,217a‧‧‧ Missing slots

218, 218a‧‧‧ first opening

219,219a‧‧‧second opening

1 is a perspective assembled view of a fan assembly in a first embodiment of the present invention.

Figure 2 is an exploded perspective view of the fan assembly of Figure 1.

3 is a perspective view of another perspective view of the fan frame of the second fan in the fan assembly of FIG. 2.

Figure 4 is an enlarged view of the circle IV of Figure 1.

Figure 5 is an exploded side elevational view of the fan assembly in a second embodiment of the present invention.

Figure 6 is a perspective view of a fan frame of a first fan of a fan assembly in a third embodiment of the present invention.

Figure 7 is a perspective view of a fan frame of a second fan of the fan assembly in the third embodiment of the present invention.

The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

FIG. 1 shows a fan assembly 100 according to a first embodiment of the present invention. The fan assembly 100 includes a first fan 10 and a second fan 20 in combination with the first fan 10.

Referring to FIG. 2 together, the first fan 10 includes a fan frame 11 and a fan wheel 12 pivotally connected to the fan frame 11. The fan frame 11 includes a duct 110, and the fan wheel 12 is located at the air duct. 110. The periphery of the top end of the air duct 110 protrudes outwardly to form a flange 112 around the air duct 110. The flange 112 has a rectangular shape, and the flange 112 is provided with a vertical upwardly extending toward the upper surface of the second fan 20. The first fixing piece 113, that is, the first fixing piece 113 extends from the first fan 10 to the second fan 20, and the eight first fixing pieces 113 are paired into two pairs, and the four pairs are divided into four pairs. The first fixing pieces 113 are respectively located at the four corners of the flange 112. Each pair of first fixing pieces 113 are disposed close to each other and face to face. The inner side surfaces 114 of the first fixing pieces 113 are spaced apart from each other and are parallel to each other. Each of the first fixing pieces 113 protrudes away from the end of the flange 112 toward the other first fixing piece 113 matched with the flange 112 to form a hook portion 115. The hook portion 115 protrudes from the inner side surface 114 of the first fixing piece 113 and has a substantially wedge shape. The top end of the hook portion 115 forms a slope 116.

Referring to FIG. 3, the second fan 20 is similar in structure to the first fan 10. The second fan 20 also includes a frame 21 and a fan wheel 22 pivotally connected to the fan frame 21 (please refer to FIG. 1). The fan frame 21 includes a duct 210. The outer periphery of the bottom end of the duct 210 protrudes outward to form a rectangular flange 212 surrounding the air duct 210. The flange 212 is provided with four notches 217. The four notches are respectively located at the four corners of the flange 212, and each of the notches 217 is opposite to the first fixing piece 113 on the first fan 10. Each of the notches 217 is semi-closed, and includes a first opening 218 facing the first fan 10 and a second opening 219 perpendicular to the first opening 218 and facing the outside of the flange 212, each slot 217 is provided with a pair of second fixing pieces 213 protruding from the bottom of the notch 217 toward the first opening 218, and the structure of the second fixing piece 213 and the first fixing piece 113 Similarly, each of the second fixing pieces 213 protrudes in a direction opposite to the other second fixing piece 213 paired with each other to form a wedge-shaped hook portion 215, that is, the hook portion 215 of each second fixing piece 213 protrudes from the outer side surface thereof. 214, a slanting surface 216 is formed at a top end of the hook portion 215, and a slope 216 on each of the second fixing pieces 213 is opposite to and parallel with a slope 116 of the corresponding first fixing piece 113 on the first fan 10. One of the notches 217 is parallel to the second fixing piece 213 and perpendicular to the second opening 219 of the notch 217, and the distance between the outer sides 214 of each pair of second fixing pieces 213 is slightly smaller than the first fan. The distance between the inner side faces 114 of each pair of first fixing pieces 113 on 10.

When the fan assembly 100 is assembled, the air duct 110 of the first fan 10 and the air duct 210 of the second fan 20 are aligned with each other, so that one of the two inclined surfaces 116 of each pair of first fixing pieces 113 and one of the corresponding notches 217 The two inclined faces 216 of the second solid piece 213 are opposite to each other, and the first fan 10 and the second fan 20 are pressed, and each pair of the first fixing pieces 113 and the corresponding one of the pair of second fixing pieces 213 are opposed to each other. The sheet 113 is applied to the corresponding opening 217 from the first opening 218 of the second frame 21, and the inclined surface 116 of the first fixing piece 113 and the inclined surface 216 of the corresponding second fixing piece 213 are relatively slid. The first and second fixing pieces 113 and 213 are elastically deformed laterally, that is, each pair of first fixing pieces 113 is expanded toward the outer side of the pair of first fixing pieces 113, and each pair of second fixing pieces 213 is opposite to the pair of second fixing pieces. Referring to FIG. 4, when the hook portion 115 of each pair of first fixing pieces 113 slides over the hook portion 215 of the corresponding pair of second fixing pieces 213, the first fixing piece 113 and the second fixing portion The sheet 213 is restored to the original shape, and the hook portion 115 of each pair of the first fixing pieces 113 is hooked to the hook portion 215 of the corresponding one of the second fixing pieces 213, and each The second fixing piece 213 is positioned between the corresponding one of the first fixing pieces 113, and each of the first fixing pieces 113 on the first fan 10 and the corresponding one of the second fixing pieces 213 on the second fan 20 are The second opening 219 of the notch 217 where the pair of second fixing pieces 213 is located is exposed, so that the fan assembly 100 can operate the first and second fixing pieces 113 and 213 when disassembling. Work.

In the above embodiment, the notch 217 is disposed on the flange 212 of the fan frame 21 of the second fan 20, so that the second fixing piece 213 is disposed in the notch 217, and the first fixing piece 113 is convex from the first fan 10. The edge 112 extends directly upward. Of course, the present invention is not limited to the above design. Referring to FIG. 5, the notch 217 may also be disposed on the flange 112 of the fan frame 11 of the first fan 10, so that the first fixing piece 113 is disposed in the slot 217. The notch 217 is not provided on the flange 212 of the fan frame 21 of the second fan 20, so that the second fixing piece 213 extends directly downward from the flange 212.

The fan assembly 100 is connected by the fixing pieces 113 and 213 provided with the hook portions 115 and 215 respectively on the first fan 10 and the second fan 20, and can be assembled by pressing only. The operation is convenient, and the first and second fixing pieces 113 and 213 are integrally formed with the first and second fans 10 and 20 respectively, and the connection mode of the connecting member is separately arranged, thereby greatly saving the production cost. In addition, the first The second fixing pieces 113 and 213 can be elastically deformed. The elastic deformation variables required for each of the fixing pieces 113 and 213 are relatively small during assembly, thereby reducing the breakage of the first and second fixing pieces 113 and 213. The possibility.

Figure 6 and Figure 7 show the fan frames 11a, 21a in the fan assembly of the third embodiment of the present invention, respectively. The fan frames 11a, 21a are substantially similar to the fan frames 11, 21 in the first embodiment, except that the rectangular flange 112a of the fan frame 11a is provided with four first fixing pieces 113, and the four The first fixing pieces 113 are respectively located at the four corners of the flange 112a, and the four first fixing pieces 113 are disposed face to face and divided into two pairs, and each pair of the first fixing pieces 113 is disposed at the flange 112a. At the two corners of the adjacent one, the first fixing piece 113 is formed at one end away from the flange 112a with a hook portion 115 protruding from the inner side surface 114, and a top surface of the hook portion 115 is formed with a slope 116; The moment of box 21a Four notches 217a are correspondingly formed on the four corners of the flange 212a, and each of the notches 217a is opposite to one of the first fixing pieces 113 on the frame 11a. Each of the cutouts 217a includes a first opening 218a facing the fan frame 11a and a second opening 219a perpendicular to the first opening 218a and facing the outside of the flange 212a. A second fixing piece 213 extends from the bottom of the groove 217a toward the first opening 218a. Each of the second fixing pieces 213 is perpendicular to the second opening 219a of the notch 217a, and the four second fixing pieces 213 are divided. Two pairs, each pair of second fixing pieces 213 are disposed in the adjacent two notches 217a and disposed back to back, and the distance between the outer side faces 214 of each pair of second fixing pieces 213 is slightly smaller than the corresponding one of the corresponding frames 11a The distance between the inner side faces 114 of the first fixing piece 113. The end of each of the second fixing pieces 213 is formed with a hook portion 215 protruding from the outer side surface 214 thereof. The top end of each of the hook portions 215 is formed with a sloped surface 216, and each inclined surface 216 corresponds to one of the corresponding ones of the frame frames 11a. The slopes 116 on the first stator 113 are opposite and parallel.

The assembling method of the fan assembly in the third embodiment is similar to the assembling method of the fan assembly 100 in the first embodiment. After the assembly, the hook portion 115 of each first fixing piece 113 is hooked to the corresponding one of the second fixing. The hook portion 215 of the sheet 213 is positioned between each pair of the first fixing pieces 113. Each of the first fixing pieces 113 and the corresponding one of the second fixing pieces 213 are exposed by the second opening 219a of the notch 217a where the second fixing piece 213 is located.

In summary, the present invention conforms to the requirements of the invention patent, and proposes a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

10‧‧‧First fan

11,21‧‧‧Fan frame

12‧‧‧fan wheel

110,210‧‧‧ duct

112,212‧‧‧Flange

113‧‧‧First fixed piece

114‧‧‧ inside side

115‧‧‧ hook

116‧‧‧Bevel

213‧‧‧Second fixed piece

Claims (10)

A fan assembly includes a first fan and a second fan combined with the first fan, the first fan includes a first fan frame, and the second fan includes a second fan frame, and the improvement is: the first fan The top end of the frame is provided with at least one pair of first fixing pieces disposed face to face, and each of the first fixing pieces is provided with one first hook portion protruding toward the other first fixing piece matched with the first fixing piece, and each of the first fixing pieces The inner side surface and the outer side surface opposite to the inner side surface, the inner side surfaces of the at least one pair of first fixing pieces are spaced apart from each other and parallel, and the outer side surfaces of the at least one pair of first fixing pieces are respectively from the first side frame The top end of the second frame is provided with at least one pair of second fixing pieces disposed back to back, and each second solid piece is provided with a second fixing piece opposite to the second fixing piece a second hook portion protruding in a direction, the at least one pair of second fixing pieces being located between the at least one pair of first fixing pieces, and the second hook portions of the at least one pair of second fixing pieces respectively hooking the pair of at least one pair The first hook of the first fixing piece. The fan assembly of claim 1, wherein one of the first frame and the second frame is provided with a plurality of slots, and the fixing piece on the frame of the slot is located in the slot . The fan assembly of claim 2, wherein the notch is disposed on the second frame, the second fixing piece is disposed in the slot, and the slot includes a first fan a first opening of the frame, each second fixing piece protruding from the bottom of the missing slot toward the first opening, the first fixing piece extending into the corresponding missing slot from the first opening on the second frame In the middle, to hook with the corresponding second fixed piece. The fan assembly of claim 3, wherein each of the slots is semi-closed, each slot further comprising a second opening perpendicular to the first opening and facing one of the outside of the second frame. The first fixing piece and the second fixing piece are exposed by the second opening of the missing groove. The fan assembly of claim 4, wherein the first frame is provided with eight first a fixing piece, the eight first fixing pieces are divided into four pairs, each pair of first fixing pieces are close to each other, the second frame frame is provided with four missing slots, and each missing slot corresponds to one of the first frame frames For the first fixing piece, a pair of second fixing pieces are provided in each of the notches. The fan assembly of claim 4, wherein the first frame is provided with four first fixing pieces, and the four first fixing pieces are divided into two pairs, and the second frame is provided with There are four missing slots, each of which is facing a first fixing piece on the first frame, and a second fixing piece is disposed in each of the notches. The fan assembly of claim 5, wherein the first hook portion and the second hook portion are wedge-shaped, and a first inclined surface is formed at a top end of each of the first hook portions, and each second hook is formed. A second inclined surface is formed at a top end of the portion, and the first inclined surface of each of the first fixing pieces is opposite to and parallel with the second inclined surface of the corresponding one of the second fixing pieces. The fan assembly of claim 1, wherein the first fan frame comprises a first air duct, and a top end of the first air duct extends outwardly to form a first flange around the first air duct. The first fixing piece protrudes upward from the first flange, the second frame comprises a second air duct, and the bottom end of the second air duct extends outward to form a second around the second air duct a flange, the second fixing piece protrudes downward from the second flange, and the first duct and the second duct are aligned and communicate with each other. The fan assembly of claim 8, wherein the second flange of the second frame is provided with a plurality of slots, each slot including a first opening facing the first frame and a vertical a first opening and a second opening facing the outer side of the second flange, wherein the second fixing piece is disposed in the notch, and each second fixing piece is from the bottom of the notch to the notch An opening is protruded, and the first fixing piece and the second fixing piece are exposed by the second opening of the notch. The fan assembly of claim 1, wherein the first fan further includes a first fan wheel housed in the first fan frame, and the second fan further includes a second fan frame. A second fan wheel.