Patent Application
20130189076
1. Field of the Invention
The present invention relates generally to a series fan, and more particularly to a series fan assembly structure, which is easy to rework and has better vibration absorption effect. Moreover, the series fan assembly structure is prevented from being damaged when reworked.
2. Description of the Related Art
Recently, the internal circuits of the integrated circuit (IC) chip have been laid out more and more compactly. Consequently, the chip generates higher and higher heat. When a personal computer works, the compact IC chip such as CPU or graphics chip will generate high heat. In order to keep the IC chip functioning lastingly, it is necessary to maintain the IC chip at an optimal working temperature. In this case, rise of temperature can be avoided so as not to deteriorate the efficiency of the IC chip or damage the IC chip. In general, a heat dissipation device is used to directly contact the surface of the electronic component for dissipating the heat generated by the electronic component. Accordingly, the electronic component can keep working normally without shortening its lifetime.
A cooling fan is an inevitable component of a heat dissipation device. The cooling fan is able to quickly carry away the heat absorbed by a radiating fin assembly to complete a thermal cycle and achieve better heat dissipation effect.
In general, two cooling fans are serially connected with each other to dissipate the heat generated by a heat source. Under such circumstance, in case one of the cooling fans fails, the other cooling fan can still operate to dissipate the heat so as to avoid damage of the heat source due to overheating. Moreover, in an operation system with high static pressure, the series cooling fan has better performance and is able to provide higher air volume.
The second fan 32 has a second frame body 321 and a second fan impeller 322. The second fan impeller 322 is rotatably disposed in the second frame body 321. The second frame body 301 has a third side 3211 and a fourth side 3212 opposite to the third side 3211. The fourth side 3212 faces the second side 3012. Multiple through holes 323 are formed on four corners of the fourth side 3212 of the second frame body 321. The protrusions 303 can be correspondingly fitted through the through holes 323 and fixed therein. After the protrusion 303 is fitted through the through hole 323 from one end to the other end of the through hole 323, the reverse hook section 3031 of the protrusion 303 is engaged with an end face of the other end of the through hole 323 so as to serially fixedly connect the first and second fans 30, 32. By means of the protrusions 303 of the first frame body 301 and the through holes 323 of the second frame body 321, the first and second fans 30, 32 can be serially connected. However, a problem is raised that it is hard to rework the series fan. When reworking the series fan, it is necessary to first force the reverse hook sections 3031 of the protrusions 303 into the through holes 323 of the second frame body 321 and then forcedly extract the protrusions 303 out of the through holes 323. When extracting the protrusions 303 out of the through holes 323, it often takes place that the protrusions 303 break due to non-uniform force or over-forcing. Therefore, it is hard to rework the series fan.
Moreover, through the vibration test on the system, it is found that the conventional series fan has higher acceleration value. As a result, in the case that the conventional series fan is installed in an electronic device such as a (computer host), the reading efficiency of the hard disc will be inevitably declined. Also, the vibration absorption effect is poor.
According to the above, the conventional series fan has the following shortcomings:
A primary object of the present invention is to provide a series fan assembly structure, which is easy to rework.
A further object of the present invention is to provide the above series fan assembly structure, which has better vibration absorption effect.
To achieve the above and other objects, the series fan assembly structure of the present invention includes a first fan and a second fan. One side of the first fan is attached to one side of the second fan. The first fan includes a first frame body, a first fan impeller and at least one mating section. The first fan impeller is rotatably disposed in the first frame body. The mating sections are diagonally positioned on two opposite corners of one side of the first frame body. The second fan includes a second frame body, a second fan impeller and at least one connection section. The second fan impeller is rotatably disposed in the second frame body. The connection sections are diagonally positioned on two opposite corners of one side of the second frame body and correspondingly connected with the mating sections. By means of the mating sections and the connection sections connected with the mating sections, the series fan assembly structure is easy to rework and has better vibration absorption effect.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein:
Please refer to
The first fan impeller 12 is rotatably disposed in the first frame body 11, that is, the first fan impeller 12 is received in the first receiving space 114 and rotatably connected with the first shaft seat 115. The mating sections 14 are diagonally positioned on two opposite corners of one side of the first frame body 11. In this embodiment, the mating sections 14 are diagonally positioned on two opposite corners of the second side 112 of the first frame body 11 for illustration purposes only.
The mating sections 14 include a first mating protrusion 141 and a first mating hole 143 opposite to the first mating protrusion 141. The first mating protrusion 141 axially protrudes from one of the two opposite corners of the second side 112 of the first frame body 11. The first mating protrusion 114 has at least one broken hole 1411 passing through a free end of the first mating protrusion 141, which end is distal from the second side 112. The other of the two opposite corners of the second side 112 of the first frame body 11 is radially notched to form the first mating hole 143. The first mating hole 143 has a locating section 1431 and an open section 1432 in communication with the locating section 1431. The open section 1432 extends from the locating section 1431 to the adjacent edge of the first frame body 11.
Please further refer to
The second fan impeller 22 is rotatably disposed in the second frame body 21, that is, the second fan impeller 22 is received in the second receiving space 214 and rotatably connected with the second shaft seat 215. The connection sections 24 are diagonally positioned on two opposite corners of one side of the second frame body 21 and correspondingly connected with the mating sections 14. In this embodiment, the connection sections 24 are diagonally positioned on two opposite corners of the fourth side 212 of the second frame body 21 for illustration purposes only. The connection sections 24 are connected with the mating sections 14 by way of insertion, screwing or engagement.
The connection sections 24 include a first connection hole 241 corresponding to the first mating protrusion 141 and a first connection protrusion 243 opposite to the first connection hole 241. One of the two opposite corners of the fourth side 212 of the second frame body 21 is radially notched to form the first connection hole 241. The first connection hole 241 has a locating section 2411 and an open section 2412 in communication with the locating section 2411. The open section 2412 extends from the locating section 2411 to the adjacent edge of the second frame body 21. The first mating protrusion 141 is correspondingly inlaid in the first connection hole 241.
Please further refer to
When assembling the first fan 1 with the second fan 2, the first mating protrusion 141 and the first connection protrusion 243 are respectively positioned at the open section 2412 of the first connection hole 241 and the open section 1432 of the first mating hole 143. Then a horizontal inward force is applied to the first frame body 11 (or the second frame body 21) to push/pull the first frame body 11 (or the second frame body 21), whereby the first mating protrusion 141 and the first connection protrusion 243 are respectively moved from the open sections 2412, 1432 into the locating sections 2411, 1431. After the first mating protrusion 141 and the first connection protrusion 243 are respectively inlaid in the locating sections 2411, 1431 of the first connection hole 241 and the first mating hole 143, the second side 112 of the first frame body 11 is tightly attached to the fourth side 212 of the second frame body 21. Under such circumstance, the first fan 1 and the second fan 2 are serially connected with each other to form the series fan.
When disassembling (or separating) the first fan 1 from the second fan 2, an operator only needs to apply a horizontal outward force to the first frame body 11 (or the second frame body 21) to push/pull the first frame body 11 (or the second frame body 21), whereby the first mating protrusion 141 and the first connection protrusion 243 are respectively moved to the open sections 2412, 1432 of the first connection hole 241 and the first mating hole 143. After the first mating protrusion 141 and the first connection protrusion 243 are respectively extracted out of the open sections 2412, 1432, the first fan 1 is separated from the second fan 2. Accordingly, the series fan can be conveniently assembled/disassembled and is easy to rework.
According to the above arrangement, the mating sections 14 of the first fan 1 can be securely connected with the connection sections 24 of the second fan 2 to conveniently assemble the first and second fans 1, 2 with each other.
Moreover, when reworking and disassembling the series fan, the assembly structure of the first and second fans 1, 2 will not be damaged so that it is easy to rework the series fan and a better vibration absorption effect is achieved.
Please now refer to
As the first mating hole 143, each of the second and third mating holes 144, 145 has a locating section 1441, 1451 and an open section 1442, 1452 in communication with the locating sections 1441, 1451. The open sections 1442, 1452 of the second and third mating holes 144, 145 respectively extend from the locating sections 1441, 1451 to the adjacent edges of the first frame body 11.
The connection sections 24 further include a second connection protrusion 244 and a third connection protrusion 245. The second and third connection protrusions 244, 245 are diagonally disposed on the other two opposite corners of the fourth side 212 of the second frame body 21. The second and third connection protrusions 244, 245 respectively axially protrude from the other two opposite corners of the fourth side 212 of the second frame body 21. The second and third connection protrusions 244, 245 are inlaid in the corresponding second and third mating holes 144, 145, whereby the first and second fans 1, 2 can be more securely assembled with each other to enhance the vibration absorption effect of the series fan.
As the first connection protrusion 243, each of the second and third connection protrusions 244, 245 has at least one broken hole 2441, 2451 passing through a free end of each of the second and third connection protrusions 244, 245, which end is distal from the fourth side 212. Please now refer to
The other of the other two opposite corners of the second side 112 of the first frame body 11 is radially notched to form the second mating hole 144. As the first mating hole 143, the second mating hole 144 has a locating section 1441 and an open section 1442 in communication with the locating section 1441. The open section 1442 of the second mating hole 144 extends from the locating section 1441 to the adjacent edge of the first frame body 11. In the first embodiment, the first connection hole 241 and the first connection protrusion 243 are respectively connected with the corresponding first mating protrusion 141 and first mating hole 143 by way of insertion. It should be noted that differently, in the third embodiment, the first connection hole 241 and the first connection protrusion 243 are respectively connected with the corresponding second mating protrusion 142 and second mating hole 144 by way of insertion.
The connection sections 24 further include a second connection protrusion 244 and a second connection hole 242 opposite to the second connection protrusion 244. The second connection protrusion 244 axially protrudes from one of the other two opposite corners of the fourth side 212 of the second frame body 21. The second connection protrusion 244 is inlaid in the corresponding first mating hole 143. The second connection protrusion 244 has at least one broken hole 2441 passing through a free end of the second connection protrusion 244, which end is distal from the fourth side 212.
The other of the other two opposite corners of the fourth side 212 of the second frame body 21 is radially notched to form the second connection hole 242. The first mating protrusion 141 is correspondingly inlaid in the second connection hole 242. As the first connection hole 241, the second connection hole 242 has a locating section 2421 and an open section 2422 in communication with the locating section 2421. The open section 2422 of the second connection hole 242 extends from the locating section 2421 to the adjacent edge of the second frame body 21. The second mating protrusion 142 and the second mating hole 144 are respectively connected with the corresponding first connection hole 241 and the first connection protrusion 243 by way of insertion. Also, the first mating protrusion 141 and the first mating hole 143 are respectively connected with the corresponding second connection hole 242 and the second connection protrusion 244 by way of insertion. Accordingly, the first and second fans 1, 2 can be more securely connected with each other to achieve better vibration absorption effect for the series fan.
Please now refer to
Each of the first, second, third and fourth mating holes 143, 144, 145, 146 has a locating section 1431, 1441, 1451, 1461 and an open section 1432, 1442, 1452, 1462 in communication with the locating section 1431, 1441, 1451, 1461. The open sections 1432, 1442, 1452, 1462 of the first, second, third and fourth mating holes 143, 144, 145, 146 respectively extend from the locating sections 1431, 1441, 1451, 1461 to the adjacent edges of the first frame body 11.
In addition, for illustration purposes, the connection sections 24 of the fourth embodiment include a first connection protrusion 243, a second connection protrusion 244, a third connection protrusion 245 and a fourth connection protrusion 246 instead of the second and third connection protrusions 244, 245 of the second embodiment. The first and second connection protrusions 243, 244 respectively axially protrude from the two opposite corners of the fourth side 212 of the second frame body 21. The first and second connection protrusions 243, 244 are inlaid in the corresponding first and second mating holes 143, 144. The third and fourth connection protrusions 245, 246 respectively axially protrude from the other two opposite corners of the fourth side 212. The third and fourth connection protrusions 245, 246 are inlaid in the corresponding third and fourth mating holes 145, 146.
Please further refer to
When assembling the first fan 1 with the second fan 2, the first, second, third and fourth connection protrusions 243, 244, 245, 246 are respectively positioned at the corresponding open sections 1432, 1442, 1452, 1462 of the first, second, third and fourth mating holes 143, 144, 145, 146. Then a horizontal leftward/rightward force is applied to the first frame body 11 (or the second frame body 21) to rotate the first frame body 11 (or the second frame body 21), whereby the first, second, third and fourth connection protrusions 243, 244, 245, 246 are respectively moved from the corresponding open sections 1432, 1442, 1452, 1462 into the locating sections 1431, 1441, 1451, 1461. After the first, second, third and fourth connection protrusions 243, 244, 245, 246 are respectively inlaid in the locating sections 1431, 1441, 1451, 1461 of the first, second, third and fourth mating holes 143, 144, 145, 146, the second side 112 of the first frame body 11 is tightly attached to the fourth side 212 of the second frame body 21. Under such circumstance, the first fan 1 and the second fan 2 are serially connected with each other to form the series fan.
When disassembling (or separating) the first fan 1 from the second fan 2, an operator only needs to apply a horizontal leftward/rightward force to the first frame body 11 (or the second frame body 21) to rotate the first frame body 11 (or the second frame body 21), whereby the first, second, third and fourth connection protrusions 243, 244, 245, 246 are respectively moved to the corresponding open sections 1432, 1442, 1452, 1462 of the first, second, third and fourth mating holes 143, 144, 145, 146. After the first, second, third and fourth connection protrusions 243, 244, 245, 246 are respectively extracted out of the corresponding open sections 1432, 1442, 1452, 1462, the first fan 1 is separated from the second fan 2. Accordingly, the series fan can be conveniently assembled/disassembled and is easy to rework to achieve an excellent vibration absorption effect.
According to the above arrangement, in comparison with the conventional device, the present invention has the following advantages:
The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. It is understood that many changes and modifications of the above embodiments can be made without departing from the spirit of the present invention. The scope of the present invention is limited only by the appended claims.
