JP2006125368A - Fan provided with central advance air - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan with respect to a fan frame and a fan wheel structure of the fan used to radiate heat of an ordinary electronic products and also used to central-advance air. <P>SOLUTION: This fan mainly includes the fan frame, a fan wheel, and a driving device. The fan frame is provided with a cupola base provided with a hole passage and letting fluid flow, and a pivotal contact part is provided in the hole passage. The fan wheel is provided with a cupola provided with a through-hole and a plurality of blades. The blade is radially extended toward the outside from an outer ring face of the cupola, is extended toward an inner side up to the center of an end face of the cupola, and is connected with a receiving contact part. The driving device is installed in the fan frame and the fan wheel to drive the fan wheel. By bringing the receiving contact part of the fan wheel into pivotal-contact on the pivotal contact part of the fan frame, the fan wheel is installed in the fan frame, and the through-hole of the cupola and the hole passage of the cupola base form a central flow passage simultaneously. Consequently, when the driving device drives rotation of the fan wheel, fluid flows, quantity of heat at the center of an object mounted on the fan to attempt to dissipate heat is exhausted to improve heat dissipation efficiency, and quantity of heat generated by the driving device and the pivotal contact part is excluded to improve operation efficiency. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fan having a kind of central advance. Particularly, the present invention relates to a fan frame and a fan wheel structure used for heat dissipation of a kind of general electronic products.

Since the development of electronic technology requires high-speed processing for computers, CPUs are forced to operate at high clocks. The amount of heat generated by the CPU increases as the operating speed increases, and a considerable amount of heat is generated when the CPU processes data at ultra-high speed.
A heat dissipating device is indispensable in order to discharge and transfer heat to another place. If the heat of the CPU is left without using a heat dissipating device, the CPU will overheat and will not operate, and even damage to the equipment may occur.
Currently, the most widely used heat dissipation device will be a heat dissipation fan. Its biggest advantage is its low cost, which is why most manufacturers adopt it and work on research.
However, the space in the motherboard of the computer is limited, and the position where the fan is installed is limited relative to the space in the motherboard. For this reason, how to improve the heat dissipation effect with an appropriately sized fan is a very important issue.

The known fan shown in FIGS. 1 to 4 includes a fan frame 11 and a fan wheel 12.
The fan frame 11 is provided with a kneading base 111, and a pivotal portion 112 is provided at the center position of the kneading base 111. The pivot 112 includes a bearing 1121 and a pivot 1122, and the fan frame 11 has an inlet 113 and an outlet 114 to allow fluid to flow. Further, the motor stator 13 is fitted on the squeeze base 111.
The fan wheel 12 includes a koji 121 and wings 122, and a receiving portion 1213 is installed on the koji 121. A motor rotor 14 is installed on the inner ring surface 1211 of the koji 121. The wings 122 extend radially outward from the outer ring surface 1212 of the squeeze 121, and further pivotally contact the receiving part 1213 of the squeeze 121 on the pivot part 112 of the squeeze base 111. Thus, the motor rotor 14 corresponds to the motor stator 13, and at the same time, the fan wheel 12 is provided in contact with the fan frame 11.
When the motor stator 13 is energized, the motor rotor 14 generates a field, and at the same time, the rotation of the fan wheel 12 around the pivot 112 is interlocked. Further, the wing 122 pulls the fluid, and the fluid enters from the inlet 133 and flows out from the outlet 114.
Next, as shown in FIGS. 4 and 5, the fan frame 11 and the fan wheel 12 are installed above the heat dissipator 16 during installation. When the fan wheel 12 rotates and interlocks with the fluid, the fluid flows in from the inlet 113 and blows toward the heat dissipator 16 at the outlet 114, and then the air gap 161 of the heat dissipator 16 diffuses outward. Put out.

The known structure has the following drawbacks.
That is, when the fluid flows out from the outlet, it scatters toward the fan frame, but since the fluid does not flow to the rear side of the squeeze stand, a staying zone is formed at the rear side of the squeeze stand, so The amount of heat at the center of the vessel is not discharged, and the overall heat dissipation capacity is reduced.
Furthermore, the effects of the motor stator and motor rotor of the fan and the rotation of the bearing at the pivot are both heat generation sources, which adversely affects heat dissipation efficiency and service life.
The present invention provides a fan having a central advance that solves the problems of the above structure.

In order to solve the above problems, the present invention provides a fan having the following central advance.
It mainly includes a fan frame, a fan wheel, and a driving device, and the fan frame opens a hole and installs a squeeze for flowing fluid, and a pivot part is installed in the hole.
The fan wheel is provided with a koji with a through-hole, and has a plurality of wings, the wings extend radially outward from the outer ring surface of the koji, and the wings extend to the center of the end face. Connected to the receiving part,
The drive device is installed on the fan frame and the fan wheel, drives the fan wheel,
The fan wheel is installed in the fan frame by pivoting the receiving part of the fan wheel on the pivot part of the fan frame, and at the same time, the through hole of the kneading hole and the hole path of the kneading base are in the center. When the driving device drives the rotation of the fan wheel, the fluid flows, and the central heat amount of the object to be dissipated in the fan is discharged, so that the heat dissipating efficiency is improved and the driving is further performed. It is a fan having a central air advance characterized in that it also eliminates the amount of heat generated by the device and the joint and improves operating efficiency.

  As described above, the present invention opens the flow path in the center of the fan to flow the fluid and reduces the staying area where the fan is generated, thereby eliminating the amount of heat generated in the center of the object to be dissipated and improving the heat dissipating efficiency. be able to. Further, according to the present invention, the fluid is caused to flow by the flow path established in the center of the fan, the amount of heat generated by the pivot portion and the driving device can be eliminated, and the operation efficiency of the fan can be improved.

As shown in FIGS. 6 and 7, the present invention includes a fan frame 21 and a fan wheel 22.
The fan frame 21 includes an inlet 214 and an outlet 215. A squeezing stand 211 is installed at the outlet 25, and a hole 212 is opened at the center of the squeezing stand 211 to allow fluid to flow. A pivot 213 is installed in the hole 212. The pivot portion 213 includes a pivot 2131 and a bearing 2132.
The motor stator 23 of the driving device is fitted on the kneading base 211.
The fan wheel 22 has a through hole 2211 at the center and a 221 and a wing 222. The wings 222 extend radially outward from the outer ring surface 2212 of the koji 221. The wing 222 extends inward to the center of the end face 221 and is connected to the receiving portion 223, and the wing 222 rotates to the right.
The motor rotor 24 of the driving device is installed in the strainer 221.

  At the time of assembly, the koji 221 of the fan wheel 22 is made to correspond to the kink stand 211 of the fan frame 21, and the receiving portion 223 is pivoted on the pivot 2131 of the pivot portion 213. At the same time, the motor rotor 24 is made to correspond to the motor stator 23. The through hole 2211 of the fan wheel 22 forms a central flow path with the hole path 212 on the kneading base 221 of the fan frame 21 so that fluid can flow.

  Further, as shown in FIGS. 6, 8, and 9, when the motor stator 23 is energized, the motor rotor 24 generates a field and rotates leftward. Simultaneously, the rotation of the fan wheel 22 is interlocked, and when the fan wheel 22 rotates, the wings 222 of the fan wheel 22 pull the fluid. The drawn fluid enters from the inlet 214 of the fan frame 21 and flows out from the outlet 215. Since the fluid passes through the central flow path formed by the through hole 2211 of the strainer 221 and the hole path 212 of the strainer 211, the staying area behind the strainer 211 can be reduced, and the motor The amount of heat generated by the operation of the stator 23 and the motor rotor 24 and the amount of heat generated by the rotation of the bearing 2131 are also discharged.

Next, as shown in FIG. 10, when combined with a heat dissipating device such as the heat dissipator 26, the fan frame 21 and the fan wheel 22 are disposed above the heat dissipator.
When the fan wheel 22 rotates, the fluid is interlocked, and the fluid enters from the inlet 214, blows toward the heat sink 26 at the outlet, and finally flows out from the air gap 261 of the heat diffuser 26. To do. Thus, although the heat quantity of the heat dissipator 26 is carried away by the fluid flowing out from the outlet 215, in addition to this, the central flow path formed by the through-hole 2211 of the strainer 221 and the hole path 212 of the strainer 211 as the outflow route. The amount of heat in the center of the heat dissipator 26 is greatly dissipated by this fluid. Further, the amount of heat generated by the operation of the motor stator 23 and the motor rotor 24 and the amount of heat generated by the rotation of the bearing 2132 are both carried away. Therefore, since a staying zone is formed behind the squeeze stand 211, the heat amount at the center of the heat dissipator 26 cannot be eliminated, and the disadvantage of the known structure that the heat amount generated by the operation of the fan itself cannot be dissipated can be solved. . As a result, the heat dissipation effect and the fan operating efficiency are greatly improved, and the service life can be extended.

Next, as shown in FIGS. 11 and 12, the hole path 212 of the kneading base 211 of the fan frame 21 of the first embodiment of the present invention gradually diffuses from the top to the bottom and gradually spreads from the top to the bottom and gradually from the top to the bottom. It can also be set as the form to reduce. As a result, the fluid is allowed to flow outward and the flow range of the fluid is expanded, or the flow toward the rear of the pivotal portion 213 is controlled, and the flow of the fluid behind the pivotal portion 213 is promoted to Occurrence can be prevented.
Next, as shown in FIGS. 13 and 14, the wing 222 angle of the fan wheel 22 of the first embodiment of the present invention can be a leftward rotation angle. At this time, the fluid enters from one side of the squeeze stand 211 and blows toward the heat dissipator 26 on the opposite side to exhibit the same function and achieve the same effect.

Further, as shown in FIGS. 15 to 23, the overall structure and function of the second embodiment of the present invention are substantially the same as those of the first embodiment. The difference is that the plurality of wings 322 extend radially outward from the outer ring surface 3212 of the kaki 321, and the receiving portion 323 is provided in contact with the center position of the through hole 3211 of the knot 321 by the support structure 324. It is. In this structure, the fluid can flow through the central flow path formed by the through-hole 3211 of the strainer 321 and the hole 312 of the strainer 311, and can reduce the staying area generated behind the strainer 311. The central heat quantity of the vessel 36 can be discharged on a large scale. Further, since the amount of heat generated by the motor rotor 34, the motor stator 33, and the bearing 3132 of the pivot 313 can be dissipated, the heat dissipation effect and the fan operating efficiency can be improved, and the service life can be extended.

Next, as shown in FIGS. 24, 25 and 26, the third embodiment of the present invention includes a fan frame 41 and a fan wheel 42.
The fan frame 41 has an inlet 414 and an outlet 415, and a squeeze base 411 is installed at the outlet 415. In addition, a hole 412 is formed in the kneading base 411 to allow fluid to flow, and a pivotal portion 413 is installed in the hole 412. The pivot portion 413 includes a pivot 4131 and a bearing 4132.
A motor stator 43 as a driving device is fitted on the squeeze table 411.
The fan wheel 42 is provided with a through hole 4211 in the center and a wing 421 and a wing 422. The wing 422 extends toward the center from the inner periphery of the through hole 4211 of the strainer 421. The center of the through hole 4211 is connected to the receiving portion 423, and the wing 422 rotates to the right.
The motor rotor 44 of the driving device is installed in the koji 421.

  At the time of assembly, the squeeze 421 of the fan wheel 42 is made to correspond to the squeeze base 411 of the fan frame 41, and the receiving part 423 is pivoted on the pivot 4131 of the pivot part 413. At the same time, the motor rotor 44 is made to correspond to the motor stator 43. The through hole 4211 of the fan wheel 42 forms a central flow path with the hole path 412 on the scraper base 411 of the fan frame 41, and can flow the fluid.

  Further, as shown in FIGS. 24, 27 and 28, when the motor stator 43 is energized, the motor rotor 44 generates a field and rotates leftward. Simultaneously, the rotation of the fan wheel 42 is interlocked, and when the fan wheel 42 rotates, the wings 422 of the fan wheel 42 pull the fluid. The drawn fluid flows from the inlet 414 of the fan frame 41 and flows out from the outlet 415. Since the fluid passes through the central flow path formed by the through hole 4211 of the strainer 421 and the hole path 412 of the strainer 411, the retention area behind the strainer 411 can be reduced, and the motor The amount of heat generated by the operation of the stator 43 and the motor rotor 44 and the amount of heat generated by the rotation of the bearing 4131 are also discharged.

Next, as shown in FIGS. 30 and 31, the hole 412 of the squeeze base 411 of the fan frame 41 of the third embodiment of the present invention gradually diffuses from the top to the bottom and gradually spreads from the top to the bottom or gradually from the top to the bottom. It can also be set as the form to reduce. As a result, the fluid is allowed to flow outward and the flow range of the fluid is expanded, or the flow toward the rear of the pivotal portion 413 is controlled, and the flow of the fluid at the rear of the pivotal portion 413 is promoted. Occurrence can be prevented.
Next, as shown in FIGS. 32 and 33, the blade 422 angle of the fan wheel 42 according to the third embodiment of the present invention can be set to the left rotation angle. At this time, the fluid enters from one side of the squeeze base 411 and blows toward the heat sink 46 on the opposite side to exhibit the same function and achieve the same effect.

It is a three-dimensional decomposition instruction diagram of a known fan. It is a three-dimensional decomposition instruction view from another vision of a known fan. It is a well-known fan three-dimensional combination instruction diagram. It is a section operation directions figure of a publicly known fan. It is a cross-section operation | movement instruction | indication which shows a mode that the well-known fan and the heat radiator were combined. It is a three-dimensional decomposition instruction diagram of the first embodiment of the present invention. It is a three-dimensional combination instruction diagram of the first embodiment of the present invention. It is a bird's-eye view instruction figure of the 1st example of the present invention. It is a section operation directions figure of the 1st example of the present invention. It is a cross-sectional instruction | indication figure which shows a mode that the 1st Example of this invention and the heat radiator were combined. It is a section indication figure of the 2nd kind form of a scouring stand hole way of the 1st example of the present invention. It is a section indication figure of the 3rd kind form of a scouring stand hole way of the 1st example of the present invention. It is a bird's-eye view instruction | indication which shows a mode that the rotation angle of the wing | wing of 1st Example of this invention rotates leftward. It is a bird's-eye view figure which shows a mode that the rotation angle of the wing | wing of 1st Example of this invention rotates to the left, and combines with a heat sink. It is a three-dimensional decomposition instruction diagram of the second embodiment of the present invention. It is a three-dimensional combination instruction diagram of the second embodiment of the present invention. It is a bird's-eye view instruction figure of the 2nd example of the present invention. It is a section operation directions figure of the 2nd example of the present invention. It is a section indication figure showing signs that the 2nd example of the present invention and a heat radiator were combined. It is a section indication figure of the 2nd kind form of a scouring stand hole way of the 2nd example of the present invention. It is a section indication figure of the 3rd kind form of a scouring stand hole way of the 2nd example of the present invention. It is a bird's-eye view instruction | indication which shows a mode that the rotation angle of the wing | wing of 2nd Example of this invention rotates leftward. It is a bird's-eye view instruction | indication which shows a mode that the rotation angle of the wing | wing of 2nd Example of this invention rotates leftward, and combines with a heat sink. It is a three-dimensional decomposition instruction diagram of the third embodiment of the present invention. It is a three-dimensional combination instruction diagram of the third embodiment of the present invention. It is another three-dimensional combination instruction figure from another vision of the 3rd example of the present invention. It is a bird's-eye view instruction diagram of the third embodiment of the present invention. It is a section operation directions figure of the 3rd example of the present invention. It is a section indication figure showing signs that the 3rd example of the present invention and a heat radiator were combined. It is a section indication figure of the 2nd kind form of a scouring stand hole way of the 3rd example of the present invention. It is a section indication figure of the 3rd kind form of a scouring stand hole way of the 3rd example of the present invention. It is a bird's-eye view instruction | indication which shows a mode that the rotation angle of the wing | wing of 3rd Example of this invention rotates leftward. It is a bird's-eye view instruction | indication which shows a mode that the rotation angle of the wing | wing of 3rd Example of this invention rotates leftward, and combines with a heat sink.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Fan frame 111 Kokiki stand 112 Pivoting part 1121 Bearing 1122 Pivot 113 Inlet 114 Outlet 12 Fan wheel 121 Koshiki 1211 Inner ring surface 1212 Outer ring surface 1213 Reception part 122 Wing 13 Motor stator 14 Motor rotor 15 Stay section 16 Heat dissipator 161 Air gap 21 Fan frame 211 Squeegee stand 212 Hole 213 Pivot part 2131 Pivot 2132 Pivot 2132 Bearing 214 Inlet 215 Exit 22 Fan wheel 221 Squeeze 2211 Through hole 2212 Outer ring surface 222 Wing 223 Accessing part 23 Motor stator 24 Motor rotor 26 Heat dissipator 261 Air gap 31 Fan frame 311 Squeegee stand 312 Hole 313 Pivoting part 3131 Pivot 3132 Bearing 314 Inlet 315 Outlet 32 Fan wheel 321 Squeeze 3211 Through-hole 3212 Outer ring surface 322 Feather 323 Reception part 324 Support structure 33 Motor stator 34 Motor rotor 36 Heat dissipator 361 Air gap 41 Fan frame 411 Squeegee 412 Hole 413 Pivot part 4131 Pivot 4132 Bearing 414 Inlet 415 Outlet 42 Fan wheel 421 Koshiki 4211 Through hole 4212 Outer ring surface 422 Wing 423 Accessing part 43 Motor stator 44 Motor rotor 46 Heat dissipator 461 Air gap

Claims (18)

Mainly including fan frame, fan wheel, drive device,
The fan frame establishes a perforation and installs a squeeze that allows fluid to flow, and installs a pivot in the perforation,
The fan wheel is installed in the fan frame, the fan wheel is provided with a strainer having a through hole, and the through hole forms a central flow path with a hole path of the strainer base, and a plurality of fluids flow. The wings extend radially outward from the outer ring surface, and the wings extend to the center of the end surface and connect to the receiving part. The receiving part is connected to the fan frame. Pivot to the pivot,
The drive device is installed on the fan frame and the fan wheel, drives the fan wheel,
The fan wheel is installed in the fan frame by pivoting the receiving part of the fan wheel on the pivot part of the fan frame, and at the same time, the through hole of the kneading hole and the hole path of the kneading base are in the center. When the driving device drives the rotation of the fan wheel, the fluid flows, and the central heat amount of the object to be dissipated in the fan is discharged, so that the heat dissipating efficiency is improved and the driving is further performed. A fan with central advancing, characterized by eliminating the amount of heat generated by the device and the pivot, and improving operating efficiency. 2. The fan with central advancing according to claim 1, wherein the pivot part includes a pivot and a bearing. The fan having a central air advance according to claim 1, wherein the driving device includes a motor rotor and a motor stator. 2. The fan having a central air advance according to claim 1, wherein the perforations of the kneading base have an inclined shape directed outward from the top to the bottom. 2. The fan having a central air advance according to claim 1, wherein the perforated passage of the kneading base has an inclined shape directed inward from top to bottom. 2. The fan having a central air advance according to claim 1, wherein the object to be dissipated is a heat dissipator. Mainly including fan frame, fan wheel, drive device,
The fan frame establishes a perforation and installs a squeeze that allows fluid to flow, and installs a pivot in the perforation,
The fan wheel is installed in the fan frame, the fan wheel is provided with a strainer having a through hole, and the through hole forms a central flow path with a hole path of the strainer base, and a plurality of fluids flow. Comprising wings, the wings extend radially outward from the outer ring surface, and a receiving part is installed on the stake, the receiving part is pivoted to the pivot part of the fan frame;
The drive device is installed on the fan frame and the fan wheel, drives the fan wheel,
The fan wheel is installed in the fan frame by pivoting the receiving part of the fan wheel on the pivot part of the fan frame, and at the same time, the through hole of the kneading hole and the hole path of the kneading base are in the center. When the driving device drives the rotation of the fan wheel, the fluid flows, and the central heat amount of the object to be dissipated in the fan is discharged, so that the heat dissipating efficiency is improved and the driving is further performed. A fan with central advancing, characterized by eliminating the amount of heat generated by the device and the pivot, and improving operating efficiency. 8. The fan having a central air advance according to claim 7, wherein the pivot part includes a pivot and a bearing. 8. The fan having a central air advance according to claim 7, wherein the driving device includes a motor rotor and a motor stator. 8. The fan having a central air advance according to claim 7, wherein the perforations of the kneading base have an inclined shape directed from the top to the bottom toward the outside. 8. The fan having a central advance according to claim 7, wherein the perforations of the kneading base have an inclined shape inward from top to bottom. The fan having a central advancing function according to claim 7, wherein the object to be dissipated is a heat dissipator. Mainly including fan frame, fan wheel, drive device,
The fan frame establishes a perforation and installs a squeeze that allows fluid to flow, and installs a pivot in the perforation,
The fan wheel is installed in the fan frame, the fan wheel is provided with a strainer having a through hole, and the through hole forms a central flow path with a hole path of the strainer base, and a plurality of fluids flow. The wing extends toward the center from the inner periphery of the through hole of the kneading, and is connected to a receiving portion, and the receiving portion is connected to the pivot portion of the fan frame,
The drive device is installed on the fan frame and the fan wheel, drives the fan wheel,
The fan wheel is installed in the fan frame by pivoting the receiving part of the fan wheel on the pivot part of the fan frame, and at the same time, the through hole of the kneading hole and the hole path of the kneading base are in the center. When the driving device drives the rotation of the fan wheel, the fluid flows, and the central heat amount of the object to be dissipated in the fan is discharged, so that the heat dissipating efficiency is improved and the driving is further performed. A fan with central advancing, characterized by eliminating the amount of heat generated by the device and the pivot, and improving operating efficiency. 14. The fan with central advancing according to claim 13, wherein the pivot part includes a pivot and a bearing. 14. The fan having a central air advance according to claim 13, wherein the driving device includes a motor rotor and a motor stator. 14. The fan having a central air advance according to claim 13, wherein the perforated passage of the kneading base has an inclined shape directed outward from the top to the bottom. 14. The fan having a central air advance according to claim 13, wherein the perforations of the kneading base have an inclined shape directed inward from top to bottom. The fan having a central air advance according to claim 13, wherein the object to be dissipated is a heat dissipator.

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