CN219395369U - Fan frame and electronic equipment - Google Patents

Fan frame and electronic equipment Download PDF

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Publication number
CN219395369U
CN219395369U CN202223091805.0U CN202223091805U CN219395369U CN 219395369 U CN219395369 U CN 219395369U CN 202223091805 U CN202223091805 U CN 202223091805U CN 219395369 U CN219395369 U CN 219395369U
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China
Prior art keywords
fan
frame
top wall
ventilation hole
fan frame
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Active
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CN202223091805.0U
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Chinese (zh)
Inventor
吴秀珍
李林桓
黄荣彬
张守财
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Ruijie Networks Co Ltd
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Ruijie Networks Co Ltd
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Priority to CN202223091805.0U priority Critical patent/CN219395369U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The utility model relates to the technical field of electronic equipment heat dissipation, and discloses a fan frame and electronic equipment, which are used for considering the abnormal working conditions of in-place redundancy and pull-out redundancy of the fan frame and reducing energy consumption. The fan frame comprises a frame, a fan and a fan cover; the frame comprises a fan groove, and the fan is arranged in the fan groove; the fan cover is fixedly connected with the frame and arranged on the air inlet side of the fan, the fan cover comprises a top wall and a first side wall, the top wall is opposite to the fan and provided with a first ventilation hole, the first side wall is connected with the top wall and provided with a second ventilation hole, the second ventilation hole is arranged on one side of the first side wall far away from the top wall, a rectification cavity is formed in the fan cover in a top space corresponding to a solid part of the first side wall, which is close to the top wall, and a mixed flow cavity is formed in the bottom space corresponding to the second ventilation hole; the second ventilation holes are communicated with mixed flow cavities in two fan frames which are adjacently arranged along the first direction; the solid portion isolates the rectification cavities in two fan frames disposed adjacently along the first direction.

Description

Fan frame and electronic equipment
Technical Field
The present disclosure relates to heat dissipation devices, and particularly to a fan frame and an electronic device.
Background
With the rapid development of related fields such as communication, cloud computing and the like, power consumption of electronic equipment such as routers, switches and the like is rapidly increased, and further, the heat dissipation capacity of the electronic equipment is more challenged. A fan frame (a frame structure containing a fan) is a major heat dissipation system component of the device, and a frame device typically has multiple fan frames, which play a critical role in the thermal reliability of the device.
In order to ensure high reliability of the equipment, the equipment is required to work normally in a normal use environment, and the equipment is required to be used under abnormal working conditions, wherein one of the just-needed abnormal working conditions is to support fan frame redundancy, the fan frame redundancy comprises fan frame in-place redundancy and fan frame extraction redundancy, the fan frame in-place redundancy means that the fan frame is still placed in the machine frame after failure, and the air quantity passing through a heating device corresponding to the failed fan frame is reduced; the fan frame is pulled out to be redundant to mean that the whole fan frame in the machine case is pulled out, after the fan frame is pulled out, because the windage resistance is reduced, under the effect of the adjacent fan frame, the air suction backflow can appear at the air outlet side, and most of back air is directly discharged to the outside of the machine case through the adjacent fan, and a small part of back air passes through the heating device corresponding to the pulled-out fan frame, so that the air quantity passing through the heating device corresponding to the pulled-out fan frame is reduced, and the heat dissipation of the heating device is difficult.
In the related art, the air quantity loss caused by redundancy of the fan frame is generally compensated by improving the overall performance (such as high air pressure and high air quantity) of the fan, particularly, the working condition of the fan frame in which the redundancy is extracted is overcome, and the heating device corresponding to the extracted fan frame radiates heat by means of the back-pumping of the high-performance fan, so that the fan performance is improved by at least more than 2 times due to longer flow passage and larger flow resistance, and the fan power consumption is greatly increased by more than 2 times, thereby solving the two difficulties of heat stability of redundancy of the fan frame and energy conservation and emission reduction of products.
Disclosure of Invention
The utility model provides a fan frame and electronic equipment, which are used for solving the problem of higher energy consumption of the fan frame in order to give consideration to the abnormal working conditions of in-place redundancy and pull-out redundancy of the fan frame in the heat dissipation process in the prior art.
In a first aspect, an embodiment of the present utility model provides a fan frame, where the fan frame includes a frame, a fan, and a fan housing;
the frame comprises a fan groove, and the fan is arranged in the fan groove;
the fan cover is fixedly connected with the frame and arranged on the air inlet side of the fan, the fan cover comprises a top wall and a first side wall, and the top wall is arranged opposite to the fan and provided with a first vent hole; the first side wall is connected with the top wall and is provided with a second ventilation hole, the second ventilation hole is arranged on one side, far away from the top wall, of the first side wall, a rectification cavity is formed in a top space corresponding to a solid part, close to the top wall, of the first side wall in the fan housing, and a mixed flow cavity is formed in a bottom space corresponding to the second ventilation hole in the fan housing;
the second ventilation holes are communicated with the mixed flow cavities in the two fan frames which are adjacently arranged along the first direction, and the entity part isolates the rectification cavities in the two fan frames which are adjacently arranged along the first direction; the first direction is the arrangement direction of a plurality of fan frames.
In the above embodiment, the fan frame includes a fan housing, a first ventilation hole is formed in a top wall of the fan housing, a second ventilation hole is formed in a first side wall of the fan housing, under the redundant working condition of the fan frame, wind in an external environment enters a cavity formed by the fan housing in an adjacent fan frame through the first ventilation hole, the rectifying cavity, the mixed flow cavity and the second ventilation hole after passing through a heating device corresponding to the fan frame with faults, and is discharged out of the case under the action of air suction of the fan in the adjacent fan frame, so that the purpose of radiating for the heating device corresponding to the fan frame with faults is achieved, wherein the rectifying cavity provides a space for converging and stably developing a section of wind flow, and the wind flow can be stably transited to the mixed flow cavity; under the working condition that the fan frames are pulled out to be redundant, as the fan cover is arranged on the air inlet side of the fan, the back draft directly drawn by the adjacent fan frames needs to pass through the second ventilation holes, so that the wind resistance of the part of back draft is increased, the wind quantity is reduced, and the wind quantity of the back draft passing through the heating device corresponding to the pulled-out fan frames is relatively increased, and therefore the heat dissipation effect of the part of heating device is improved.
Alternatively, the shortest distance between the second ventilation hole and the top wall is 15mm or more and 40mm or less, for example, 15mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm may be used.
Optionally, the second ventilation hole is a strip hole extending along the second direction;
the second direction is perpendicular to the first direction and parallel to the top wall.
Optionally, the number of the second ventilation holes is multiple, and multiple second ventilation holes are arranged at intervals along the second direction.
Optionally, the width of the second ventilation hole in the third direction is greater than or equal to 10mm and less than or equal to 40mm, for example, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm;
the third direction is perpendicular to the second direction and parallel to the first sidewall.
Optionally, the number of the first side walls is two, and the two first side walls are oppositely arranged.
Optionally, the fan housing and the frame are of an integral structure.
Optionally, the fan frame further includes a backflow preventing piece, where the backflow preventing piece is disposed on an air inlet side of the fan and located between the fan and the fan housing, or the backflow preventing piece is disposed on an air outlet side of the fan.
In a second aspect, an embodiment of the present utility model further provides an electronic device, where the electronic device includes a chassis, a heat generating device disposed inside the chassis, and a plurality of fan frames according to any one of the foregoing technical solutions, where the plurality of fan frames are disposed at an end of the chassis, and the plurality of fan frames are disposed in a row along the first direction.
In the above embodiment, each fan frame includes a fan housing, the fan housing is disposed on an air inlet side of the fan, a first ventilation hole is disposed on a top wall of the fan housing, and a second ventilation hole is disposed on a first side wall of the fan housing.
Optionally, the distance between the fan housing and the heat generating device is greater than or equal to 1mm and less than or equal to 10mm, for example, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm may be used.
Drawings
Fig. 1 is a schematic structural diagram of a fan frame according to an embodiment of the present utility model;
fig. 2 and fig. 3 are schematic structural diagrams of a fan housing according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present utility model;
FIG. 5 is a schematic flow chart of airflow in a chassis under the redundant-positioning condition of a fan frame according to an embodiment of the present utility model;
fig. 6 is a schematic flow diagram of airflow in a chassis under a condition that a fan frame is pulled out to be redundant according to an embodiment of the present utility model.
Reference numerals:
10-a fan frame; 11-a frame; 12-a fan; 13-a fan housing; 131-top wall; 1310-a first vent; 132-a first sidewall; 1320-a second vent; 1321-an entity moiety; 130 a-a rectification cavity; 130 b-a mixed flow chamber; 14-a backflow preventing sheet;
20-a case; 30-heat generating device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings, it being apparent that the described embodiments are only some, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a fan frame, which is used for solving the problem of higher energy consumption of the fan frame in order to give consideration to the abnormal working conditions of in-place redundancy and pull-out redundancy of the fan frame in the heat dissipation process in the prior art.
As shown in fig. 1, 2, 3 and 4, the fan frame 10 includes a frame 11, a fan 12 and a fan housing 13, wherein:
the frame 11 includes a fan slot in which the fan 12 is disposed;
the fan housing 13 is fixedly connected with the frame 11 and is arranged on the air inlet side of the fan 12, the fan housing 13 comprises a top wall 131 and a first side wall 132, and the top wall 131 is arranged opposite to the fan 12 and is provided with a first ventilation hole 1310; the first side wall 132 is connected with the top wall 131, and is provided with a second ventilation hole 1320, the second ventilation hole 1320 is arranged on one side of the first side wall 132 away from the top wall 131, that is, a solid portion 1321 is arranged between the second ventilation hole 1320 and the edge of the first side wall 132 close to the top wall 131, so that a top space corresponding to the solid portion 1321 in the fan housing 13 forms a rectifying cavity 130a, and a bottom space corresponding to the second ventilation hole 1320 in the fan housing 13 forms a mixed flow cavity 130b;
in the two fan frames 10 adjacently arranged along the first direction, the mixed flow cavities 130b of the two air covers 13 are communicated through the second ventilation holes 1320, and the rectification cavities 130a of the two air covers 13 are isolated through the solid part 1321; the first direction is an arrangement direction of the plurality of fan frames 10, and the first direction is an X-axis direction in fig. 1, 2, and 3.
Specifically, the fan frame 10 is located at an end of the casing 20 of the electronic device, and radiates heat to the heat generating device 30 inside the casing 20 by air suction, and the fan frame 10 includes a frame 11, and a fan groove is provided in the frame 11, and communicates the internal environment of the casing 20 with the external environment. The number of fans 12 may be one or more, the fans 12 are disposed in the fan slots, and the number of fans 12 is identical to the number of fan slots, and in fig. 1, three fans 12 are illustrated as an example, these fans 12 are disposed in a row along a second direction, the second direction being a Y-axis direction in fig. 1, 2, 3, and 4, and during operation, the fans 12 draw air from inside the casing 20 and exhaust air to outside the casing 20, so that heat generated by the heat generating device 30 in the electronic apparatus is dissipated to the external environment.
In addition to the frame 11 and the fan 12, the fan frame 10 further includes a fan housing 13, where the fan housing 13 is connected to the frame 11, or where the fan housing 13 and the frame 11 are integrally formed, and the fan housing 13 is disposed on an air inlet side of the fan 12, that is, the fan housing 13 is disposed between the fan 12 and the heat generating device 30, and the fan housing 13 includes a top wall 131 and a first side wall 132, where the top wall 131 is disposed opposite to the fan 12, the top wall 131 is provided with a first ventilation hole 1310, the first side wall 132 is provided with a second ventilation hole 1320, as shown in fig. 2 and 3, the second ventilation hole 1320 is disposed on a side of the first side wall 132 away from the top wall 131, and a portion of the first side wall 132 between the second ventilation hole 1320 and the top wall 131 is a solid portion 1321, so that a top space corresponding to the solid portion 1321 in the fan housing 13 forms a rectifying cavity 130a, and a bottom space corresponding to the second ventilation hole 1320 in the fan housing 13 forms a mixing cavity 130b.
The rectification cavity 130a and the mixed flow cavity 130b are part of space areas in the fan housing 13, and in the two fan frames 10 adjacently arranged along the first direction, the rectification cavities 130a in the two fan housings 13 are separated by a solid portion 1321 on the first side wall 132 between the second ventilation holes and the top wall 131, while the mixed flow cavities 130b in the two fan housings 13 are communicated through the second ventilation holes 1320 on the first side wall 132, and the rectification cavity 130a provides a space for converging and stably developing a section of air flow, so that the air flow can be stably transited to the mixed flow cavity 130b.
Under the working condition of the fan frame 10 in the position redundancy, as shown in fig. 5, the wind in the external environment enters the fan housing 13 in the adjacent fan frame 10 through the first ventilation hole 1310, the rectifying cavity 130a, the mixed flow cavity 130b and the second ventilation hole 1320 after passing through the heating device 30 corresponding to the fan frame 10 with faults, and is discharged out of the case 20 under the suction force of the fan 12 in the adjacent fan frame 10, so that the purpose of radiating the heat of the heating device 30 corresponding to the fan frame 10 with faults is achieved, and meanwhile, under the action of the rectifying cavity 130a, the disordered wind flowing out through the heating device 30 is collected and integrated, so that the mixed flow cavity 130b is smoothly transitioned; under the condition that the fan frame 10 is pulled out to be redundant, as shown in fig. 6, since the fan housing 13 is disposed on the air inlet side of the fan 12, the back draft directly pulled out by the adjacent fan frame 10 needs to pass through the second ventilation hole 1320, which increases the wind resistance of the part of back draft, reduces the wind volume, and relatively increases the wind volume of the back draft passing through the heat generating device 30 corresponding to the pulled out fan frame 10, thereby improving the heat dissipation effect of the part of heat generating device 30.
It should be noted that, the first side wall 132 includes the second ventilation hole 1320 and the solid portion 1321, in the working condition that the fan frame 10 is pulled out to be redundant, the solid portion 1321 blocks the return air that is directly pulled out by the adjacent fan frame 10 without passing through the heat generating device 30, so that the amount of the return air is reduced, and accordingly, the amount of the return air that passes through the heat generating device 30 corresponding to the pulled out fan frame 10 is relatively increased, so as to ensure the heat dissipation effect of the heat generating device 30 in the working condition that the fan frame 10 is pulled out to be redundant.
Compared with the fan housing 13, under the working conditions of the fan frame 10 of redundancy in position and redundancy in extraction, the fan housing 13 can compact the flowing space of the air flow, normalize the flowing direction of the air flow, optimize the air pressure gradient of the system, and balance the whole flow resistance, so that the fan frame 10 can give consideration to the abnormal working conditions of the fan frame 10 of redundancy in position and redundancy in extraction under the condition of lower energy consumption, and the heat dissipation effect of the heating device 30 is ensured.
The first direction and the second direction are defined above, wherein the first direction is the arrangement direction of the fan frame 10, and meanwhile, the first direction is also perpendicular to the first side wall 132 of the fan housing 13, the first direction is the X-axis direction in fig. 1-4, the second direction is perpendicular to the first direction and parallel to the top wall 131, the second direction is the Y-axis direction in fig. 1-4, and for better understanding of the spatial structure of the fan frame 10, the third direction is continuously defined herein, and is parallel to the first side wall 132 and perpendicular to the second direction, and the third direction is the Z-axis direction in fig. 1-4.
As shown in fig. 2 and 3, the shortest distance W between the second ventilation holes 1320 and the top wall 131 in the third direction (Z-axis direction) 1 15mm or more and 40mm or less, that is, a width W of a solid portion 1321 in the first side wall 132 between the second ventilation holes 1320 and the top wall 131 in the third direction (Z-axis direction) 1 15mm or more and 40mm or less, e.g. W 1 The values of (2) may be 15mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, or other values satisfying the above conditions, and are not listed here.
Width W of the second ventilation holes 1320 in the third direction (Z-axis direction) 2 10mm or more and 40mm or less, W 2 The values of (2) may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, or other values satisfying the above conditions, which are not specifically recited herein.
With continued reference to fig. 2 and 3, the second ventilation holes 1320 are elongated holes extending in the second direction (Y-axis direction).
The number of the second ventilation holes 1320 may be one or more, as shown in fig. 3, in the case that the first side wall 132 is provided with only one second ventilation hole 1320, the second ventilation holes 1320 are elongated and extend along the arrangement direction of the fans 12 so as to correspond to the plurality of fans 12, in the case that the first side wall 132 is provided with the plurality of second ventilation holes 1320, as shown in fig. 2, the number of the second ventilation holes 1320 may be set to be identical to the number of the fans 12, and each second ventilation hole 1320 is elongated and is close to the length of the fan 12 along the direction, so that in the case that the fan frame 10 is in a position redundancy condition, the air volume entering the adjacent fan frame 10 through the heating device 30 corresponding to the failed fan frame 10 through the second ventilation holes 1320 can be ensured, in the case that the fan frame 10 is in a redundancy condition, the solid portion between the second ventilation holes 1320 increases the air resistance, and the air volume drawn back by the adjacent fan frame 10 is reduced.
The number of the first ventilation holes 1310 may be one or more, that is, the plurality of fans 12 may share one first ventilation hole 1310 having a larger opening area, or each fan 12 may correspond to one first ventilation hole 1310 having a relatively smaller opening area. As shown in fig. 2 and 3, the top wall 131 of the fan housing 13 is provided with a plurality of first ventilation holes 1310, and the first ventilation holes 1310 are in one-to-one correspondence with the fans 12 and in one-to-one correspondence with the second ventilation holes 1320.
In some embodiments, in each fan frame 10, the number of the first side walls 132 is two, the two first side walls 132 are disposed opposite to each other, and each first side wall 132 is provided with a second ventilation hole 1320, and the fan 12 is interposed between the two first side walls 132, so when the number of the fan frames 10 is not less than 3, a pair of opposite first side walls 132 are disposed between the hoods 13 of any two adjacent fan frames 10, and because the first side walls 132 are provided with the second ventilation holes 1320, the mixed flow cavities 130b in the two hoods 13 can be communicated through the second ventilation holes 1320, and in case of a failure of one fan frame 10, the air passing through the heating device 30 corresponding to the fan frame 10 can enter the hoods 13 of the adjacent fan frame 10 through the second ventilation holes 1320, and be discharged to the external environment by the fans 12 of the adjacent fan frame 10.
In each of the fan frames 10, the first side wall 132 extends in the second direction, i.e., in correspondence with the arrangement direction of the fans 12, and one or more second ventilation holes 1320 may be provided in the first side wall 132 in the direction.
As shown in fig. 1, the fan frame 10 further includes a backflow preventing piece 14, where the backflow preventing piece 14 is disposed on the air inlet side of the fan 12 and located between the fan 12 and the fan housing 13, or the backflow preventing piece 14 is disposed on the air outlet side of the fan 12 and located inside the frame 11.
The backflow preventing sheet 14 is sheet-shaped, one end of the backflow preventing sheet 14 is wound to form a circular ring shape and is sleeved outside the fixed rotating shaft, so that the backflow preventing sheet 14 can rotate around the fixed rotating shaft, the fixed rotating shaft is arranged on the supporting plate inside the frame 11, when the fan frame 10 works normally, the backflow preventing sheet 14 is arranged along the air inlet passage of the fan 12, and when the fan frame 10 fails, the backflow preventing sheet 14 rotates and blocks the air inlet passage of the fan 12.
Based on the same technical concept, the embodiment of the present utility model further provides an electronic device, as shown in fig. 4, where the electronic device includes a chassis 20, a heat generating device 30 disposed inside the chassis 20, and a plurality of fan frames 10 in any one of the foregoing technical solutions, where the plurality of fan frames 10 are disposed at an end of the chassis 20 and are arranged along a first direction (an X-axis direction).
The electronic devices include, but are not limited to, routers, switches, etc., and the heat generating device 30 includes, but is not limited to, a heat generating card.
With continued reference to fig. 4, the fan frames 10 and the heat generating devices 30 are disposed in front and back along the third direction (Z-axis direction), each fan frame 10 corresponds to a group of heat generating devices 30, and when the fan frame 10 is in normal operation, air flows into the chassis 20 from the rear end of the chassis 20, passes through the heat generating devices 30 correspondingly disposed along the third direction, and is discharged from the front end of the chassis 20 through the first ventilation hole 1310 of the fan housing 13 and the fan 12.
In the electronic device, each fan frame 10 includes a fan housing 13, the fan housing 13 is disposed between the frame 11 of the fan frame 10 and the heat generating device 30, the fan housing 13 occupies a space between the frame 11 of the fan frame 10 and the heat generating device 30, so that air flows through a first ventilation hole 1310 and a second ventilation hole 1320 provided on the fan housing 13, meanwhile, a space in the fan housing 13 may be divided into a rectifying cavity 130a and a mixed flow cavity 130b, in two fan frames 10 adjacently disposed along a first direction, the rectifying cavity 130a in the fan housing 13 is separated by a solid portion 1321 of a first side wall 132 between the second ventilation hole and a top wall 131, and the mixed flow cavity 130b in the fan housing 13 is communicated through a second ventilation hole 1320 on the first side wall 132, so that a section of space where air flows are converged and smoothly developed is provided, and the air flows may smoothly transit into the mixed flow cavity 130b. Under the working conditions of the fan frame 10 in the position redundancy and the extraction redundancy, the fan cover 13 can compact the flowing space of the air flow, standardize the flowing direction of the air flow, optimize the air pressure gradient of the system and balance the whole flow resistance, so that the fan frame 10 can give consideration to the abnormal working conditions of the fan frame 10 in the position redundancy and the extraction redundancy under the condition of lower energy consumption, and the heat dissipation effect of the heating device 30 is ensured.
Specifically, the distance between the top wall 131 of the fan housing 13 and the heat generating device 30 is 1mm or more and 10mm or less, and for example, the distance may be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, or other values of 1mm or more and 10mm or less, which are not specifically mentioned herein.
It should be noted that various changes and modifications could be made by one skilled in the art without departing from the spirit and scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A fan frame is characterized by comprising a frame, a fan and a fan cover;
the frame comprises a fan groove, and the fan is arranged in the fan groove;
the fan cover is fixedly connected with the frame and arranged on the air inlet side of the fan, the fan cover comprises a top wall and a first side wall, and the top wall is arranged opposite to the fan and provided with a first vent hole; the first side wall is connected with the top wall and is provided with a second ventilation hole, the second ventilation hole is arranged on one side, far away from the top wall, of the first side wall, a rectification cavity is formed in a top space corresponding to a solid part, close to the top wall, of the first side wall in the fan housing, and a mixed flow cavity is formed in a bottom space corresponding to the second ventilation hole in the fan housing;
the second ventilation holes are communicated with the mixed flow cavities in the two fan frames which are adjacently arranged along the first direction, and the entity part isolates the rectification cavities in the two fan frames which are adjacently arranged along the first direction; the first direction is the arrangement direction of a plurality of fan frames.
2. The fan frame of claim 1, wherein a shortest distance between the second ventilation holes and the top wall is 15mm or more and 40mm or less.
3. The fan frame of claim 1 or 2, wherein the second ventilation hole is an elongated hole extending in a second direction;
the second direction is perpendicular to the first direction and parallel to the top wall.
4. The fan frame of claim 3, wherein the number of the second ventilation holes is one or more, and when the number of the second ventilation holes is a plurality, the plurality of the second ventilation holes are arranged at intervals along the second direction.
5. A fan frame as claimed in claim 3, wherein the width of the second ventilation hole in the third direction is 10mm or more and 40mm or less;
the third direction is perpendicular to the second direction and parallel to the first sidewall.
6. The fan frame of claim 1 or 2, wherein the number of the first side walls is two, and the two first side walls are disposed opposite to each other.
7. A fan frame as claimed in claim 1 or claim 2, wherein the housing is of unitary construction with the frame.
8. The fan frame of claim 1 or 2, further comprising a backflow prevention sheet disposed on an air intake side of the fan and between the fan and the fan housing, or disposed on an air outlet side of the fan.
9. An electronic device, comprising a chassis, a heating device disposed in the chassis, and a plurality of fan frames according to any one of claims 1 to 8, wherein a plurality of the fan frames are disposed at an end of the chassis, and the plurality of fan frames are disposed in an arrangement along the first direction.
10. The electronic device of claim 9, wherein a distance between a top wall of the hood and the heat generating component is 1mm or more and 10mm or less.
CN202223091805.0U 2022-11-21 2022-11-21 Fan frame and electronic equipment Active CN219395369U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223091805.0U CN219395369U (en) 2022-11-21 2022-11-21 Fan frame and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223091805.0U CN219395369U (en) 2022-11-21 2022-11-21 Fan frame and electronic equipment

Publications (1)

Publication Number Publication Date
CN219395369U true CN219395369U (en) 2023-07-21

Family

ID=87194513

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223091805.0U Active CN219395369U (en) 2022-11-21 2022-11-21 Fan frame and electronic equipment

Country Status (1)

Country Link
CN (1) CN219395369U (en)

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