WO2024021612A1 - Ensemble ventilateur, appareil de dissipation de chaleur et dispositif électronique - Google Patents

Ensemble ventilateur, appareil de dissipation de chaleur et dispositif électronique Download PDF

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Publication number
WO2024021612A1
WO2024021612A1 PCT/CN2023/080069 CN2023080069W WO2024021612A1 WO 2024021612 A1 WO2024021612 A1 WO 2024021612A1 CN 2023080069 W CN2023080069 W CN 2023080069W WO 2024021612 A1 WO2024021612 A1 WO 2024021612A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
section
fans
air guide
arc segment
Prior art date
Application number
PCT/CN2023/080069
Other languages
English (en)
Chinese (zh)
Inventor
吴琪
徐青松
刘帆
李帅
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2024021612A1 publication Critical patent/WO2024021612A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the present disclosure relates to the technical field of fan noise reduction, and in particular to a fan unit, a heat dissipation device and an electronic device.
  • the main purpose of the present disclosure is to provide a fan unit, a heat dissipation device and an electronic device, aiming to solve the technical problem of air flow at the air outlet.
  • a fan unit including: at least two fans, the axes of each fan being parallel to each other.
  • the fan includes fan blades and air guide rings spaced apart from the outer periphery of the fan blades.
  • the inner ring includes an outlet section, and the outlet section includes: an expansion part, the diameter of which gradually increases along the air outlet direction of the fan; and a straight part, which is connected to the end of the expansion part in the air outlet direction, and the diameter of the straight part remains consistent , the airflow directions of each fan are parallel to each other after passing through the straight part.
  • a heat dissipation device including the fan group according to any one of the first aspects.
  • an electronic device including the heat dissipation device as described in the second aspect.
  • Figure 1 shows a front view of a fan unit provided by Embodiment 1 of the present disclosure
  • Figure 2 shows a side view of the outer ring of the air guide ring of the wind turbine set provided by Embodiment 1 of the present disclosure
  • Figure 3 is a partial enlarged view based on Figure 2;
  • Figure 4 shows a front view of the inner ring and the outer ring of the air guide ring of the wind turbine unit provided by Embodiment 1 of the present disclosure
  • Figure 5 is a partial enlarged view based on Figure 4.
  • FIG. 6 shows a top view of the air guide ring of the wind turbine set provided by Embodiment 1 of the present disclosure.
  • Fan 11. Air guide ring; 111. Guide section; 112. Straight section; 1121. Groove; 113. Exit section; 1131. Expansion section; 11311. First arc section; 11312. Second arc section ; 1132. Straight part; 12. Fan blade; 13. Guide vane; 14.
  • Driving member A. first direction; B. second direction; V. first included angle; R1, first radius; R2, Second radius.
  • the air guide ring In some cases, there are many designs for the air guide ring, but most of the ideas focus on resonant cavity silencing.
  • the structure of this air guide ring is mostly double-layered. Due to the large size of these fans, they are mostly used in home appliances and other fields, and there are no size requirements. So sensitive, but in electronic equipment, the fans are small in size and the installation space is limited, so it is impossible to adopt a similar double-layer air guide ring structure.
  • multiple fans are usually used in parallel for heat dissipation.
  • the outlets of multiple fans are set in an expanded bell mouth structure, which will cause the outlet airflows of multiple fans to interfere with each other.
  • the airflow interferes with each other to produce noise.
  • Many fans have eliminated the commonly used bell mouth structure at the outlet section of the air guide ring, which reduces the performance of the fan to a certain extent.
  • the present disclosure provides a fan unit, a heat dissipation device and an electronic device, and the above-mentioned fan unit, heat dissipation device and electronic device are described in detail with reference to the accompanying drawings.
  • FIG. 1 shows a front view of the fan unit provided by the present disclosure.
  • FIG. 2 shows a side view of the outer ring of the air guide ring of the fan unit provided by the present disclosure.
  • FIG. 3 is a partial enlarged view based on FIG. 2 .
  • the present disclosure provides a fan unit, including: at least two fans 1 , the axes of each fan 1 being parallel to each other.
  • the fan 1 includes fan blades 12 and spacers spaced around the periphery of the fan blades 12 .
  • the inner ring of the air guide ring 11 includes an outlet section 113.
  • the outlet section 113 includes: an expansion part 1131.
  • the diameter of the expansion part 1131 gradually increases along the air outlet direction of the fan 1; and a straight part 1132, which connects At the end of the expansion portion 1131 in the air outlet direction, the diameter of the straight portion 1132 remains consistent, and the airflow directions of each fan 1 become parallel to each other after passing through the straight portion 1132 .
  • the arrangement of at least two fans 1 with mutually parallel axes includes: at least two fans 1 are arranged in parallel, which further includes: at least two fans 1 along the same radial direction Arrange, or at least two fans 1 are distributed in a matrix.
  • at least two fans 1 may also be arranged in other ways, as long as the axes of all fans 1 are parallel, which all fall within the protection scope of the present disclosure and will not be described again here.
  • the fan 1 has an air guide ring 11 provided on the periphery of the fan blade 12.
  • the inner ring of the air guide ring 11 is provided with an outlet section 113, and the outlet section 113 is first expanded to form an expansion portion 1131, and then a straight portion with a constant diameter is formed.
  • Section 1132 not only ensures the pressure expansion effect, but also ensures that the airflows of each fan 1 do not interfere with each other after exiting the outlet section 113.
  • the air guide ring 11 has a cylindrical structure, and the cross section of the air guide ring 11 taken by a plane perpendicular to its axis is annular.
  • the inner surface of the air guide ring 11 is the inner ring, and the air guide ring 11 is an inner ring.
  • the outer surface of ring 11 is the outer ring.
  • the section 111, the outlet section 112 and the straight section 113 are all the structure of the inner ring of the air guide ring 11. Since the shapes of the inner ring and the outer ring are exactly the same, and the inner ring structure is not convenient to be shown in the figure, the guide section 111, outlet Segment 112 and straight section 113 are respectively shown in the external structural view of the outer ring in FIG. 2 and in the enlarged partial view of the outer ring in FIG. 3 .
  • the straight portion 1132 extends along the axis direction of the fan 1. It can be seen that multiple fans 1 are arranged side by side along a straight line in the radial direction. The outlet sections 113 of the multiple fans 1 first expand the wind pressure. Then, the airflows of the outlet sections 113 of the multiple fans 1 are led out along the axial direction respectively through the straight portions 1132, so that the airflows of the outlet sections 113 of the multiple fans 1 are parallel to each other to prevent the airflows from interfering with each other.
  • the expansion part 1131 includes: a first arc segment 11311; and a second arc segment 11312. One end of the first arc segment 11311 is connected to one end of the second arc segment 11312. The second arc segment 11312 is The other end is connected to the straight part 1132. Moreover, the center of the first arc segment 11311 is located outside the air guide ring 11 , and the center of the second arc segment 11312 is located inside the air guide ring 11 , that is, the first arc segment 11311 is recessed toward the inside of the air guide ring 11 , and the second arc segment 11312 is located toward the inside of the air guide ring 11 . It bulges toward the outside of the wind ring 11 .
  • the outlet section 113 is composed of a first arc section 11311, a second arc section 11312 and a straight section 1132.
  • One end of the first arc section 11311 with a radius R1 is tangent to the straight section 112, and the other end is tangent to the straight section 112 with a radius R2.
  • One end of the second arc segment 11312 is tangent to the straight portion 1132 , and the other end of the second arc segment 11312 with a radius R2 is tangent to the straight portion 1132 .
  • the first radius of the first arc segment 11311 is R1
  • the center of the circle of the first arc segment 11311 is located outside the inner circle
  • the second radius of the second arc segment 11312 is R2
  • the center of the circle of the second arc segment 11312 is located on the inner circle.
  • one end of the first arc segment 11311 smoothly transitions to one end of the second arc segment 11312, and the other end of the second arc segment 11312 smoothly transitions to the straight portion 1132, so that the wind pressure increases continuously, and the inner wall of the expansion portion 1131 decreases due to The influence of angles such as corners causes the airflow to hit the corners, producing greater noise, which serves as a noise reduction function.
  • outlet section 113 can also be realized by using other splines and other curves or diagonal lines, as long as a flow channel can be formed to expand and then shrink to the level.
  • Figure 4 shows a front view of the inner ring and the outer ring of the air guide ring of the wind turbine unit provided by Embodiment 1 of the present disclosure.
  • Figure 5 is a partial enlarged view based on Figure 4.
  • Figure 6 shows the embodiment of the present disclosure. 1.
  • the inner ring also includes: a straight section 112.
  • the outlet section 113 is connected to the end of the straight section 112 in the air outlet direction.
  • the straight section 112 is provided with at least one groove 1121.
  • the groove 1121 The depth direction of extends along the radial direction of the fan 1.
  • the fan blade 12 since there is a certain distance between the fan blade 12 and the air guide ring 11, and the wind pressure at the outlet section 113 of the fan 1 is greater than the air guide ring 11, The wind pressure in the flow section 111 will cause the airflow backflow problem at the top of the fan blade 12, resulting in leakage vortex; on the other hand, since the distance between the inner ring of the air guide ring 11 and the top of the fan blade 12 is the same, the fan blade 12 is During the rotation process, the airflow is periodically flapped, and the airflow hits the inner ring of the wind guide group almost simultaneously. The noise generated is of the same frequency, and the overall noise peak value is high.
  • the present disclosure is provided with at least two grooves 1121 spaced apart along the circumferential direction in the straight section 112.
  • the airflow entering the groove 1121 can effectively reduce the leakage of the airflow at the top of the fan blade 12 from the outlet section 113 of the fan 1 to the guide section 111, thereby improving the overall performance of the axial flow fan 1 system and thereby improving the top of the fan blade 12.
  • the groove 1121 is set on the straight section 112, Easy to process.
  • the maximum depths of at least two grooves 1121 are different along the radial direction, so that there is a difference in the distance between the top of the fan blade 12 and the bottom of the at least two grooves 1121 , and the fan blade 12 There is also a difference between the distance between the top of the groove 1121 and the bottom of the groove 1121 and the distance between the middle position of the adjacent groove 1121 and the inner ring of the air guide ring 11. There are differences in time when the airflow hits the inner ring of the air guide ring 11. The differences are therefore spread out over more different frequencies, further reducing the peak value of discrete noise.
  • the radial maximum depth D of the groove 1121 is greater than or equal to 2% of the radius of the blade 12 of the fan 1 , and is less than or equal to 7% of the radius of the blade 12 of the axial flow fan 1 . If the maximum radial depth D of the groove 1121 is less than 2% of the radius of the fan blade 12 of the fan 1, it will not be able to improve the leakage vortex at the top of the fan blade 12. If the maximum radial depth D of the groove 1121 is greater than that of the fan 1 1 is 7% of the radius of the fan blade 12, then part of the airflow from the guide section 111 to the outlet section 113 will be affected, and the outlet wind pressure cannot be guaranteed.
  • At least two grooves 1121 have different cross-sectional shapes along the radial direction, and the cross-sectional shapes include at least one of: V-shaped, circular, and elliptical.
  • the two adjacent grooves 1121 in the inner ring of the air guide ring 11 of the fan 1 have different shapes.
  • the inner ring of the entire air guide ring 11 can be arranged at intervals with two or more grooves 1121 in V-shaped, circular and elliptical cross-sectional shapes. Among them, the V-shaped, circular and elliptical shapes have different maximum distances from the top of the fan blade 12 .
  • the cross-sectional shape of the groove 1121 along the radial direction can also have other choices, such as polygon, etc., as long as the cross-sectional shape of the different grooves 1121 ensures that the distance between the top of the fan blade 12 and the bottom of the groove 1121 is different, so as to achieve further reduction. Just make noise.
  • a plurality of grooves 1121 are arranged at equal intervals in the inner ring of the air guide ring 11 along the circumferential direction.
  • the extending direction of the grooves 1121 is arranged along the first direction A.
  • the extending direction of the grooves 1121 is concave.
  • the extending direction of the groove bottom of groove 1121, fan blade 12 The edge of the fan blade 112 is arranged along the second direction B.
  • the edge of the fan blade 112 is the extension direction of the outermost edge of the top of the fan blade 112.
  • the first direction A and the second direction B form a first included angle V.
  • the value range of the first included angle V is 60°-90°. In an exemplary embodiment, the first included angle V is 90°.
  • the first direction A and the second direction B form an included angle to ensure that the extension direction of each groove 1121 is not parallel to the periphery of the fan blade 12.
  • the included angle V is determined by the central arc line of the fan blade 12. Under the force of the rotation of the fan blade 12, the return airflow can better drive the return airflow into the groove 1121, thereby further improving the leakage vortex at the top of the fan blade 12. The problem.
  • the inner ring also includes a guide section 111.
  • the end of the guide section 111 in the air outlet direction is connected to the other end of the straight section 112.
  • the diameter of the guide section 111 is larger than that of the straight section 112. diameter, the wind pressure decreases, so that the airflow passes through the guide section 111 and enters the straight section 112 smoothly. After being expanded by the diffuser section, the airflow exits from the straight section 1132.
  • the fan 1 is an axial flow fan 1 .
  • the axial flow fan 1 is a fan 1 that uses the thrust of the fan blades 12 to force the gas to flow in the axial direction. It is usually composed of fan blades 12, guide vanes 13, air guide ring 11, driving part 14 and crankshaft, among which, guide vanes 13.
  • guide vane also known as “guide vane”, it includes a front guide vane and a rear guide vane arranged oppositely.
  • the air guide ring 11 is provided with a driving part 14 and an output end of the driving part 14.
  • the driving member 14 rotates in the guide blade 13 through the crankshaft with the fan blades 12
  • a certain installation angle between the crankshaft and the propeller-shaped fan blades 12 generates thrust on the gas, pushing the gas to flow continuously along the crankshaft direction, causing the gas to flow continuously along the crankshaft direction. Continuously inhaling and expelling.
  • the fan 1 is a diagonal flow fan 1 .
  • the oblique flow fan 1 also known as the mixed flow fan 1 is a fan 1 between the axial flow fan 1 and the centrifugal fan 1.
  • the impeller of the oblique flow fan 1 allows the air to move both centrifugally and axially.
  • the movement of air is a mixture of axial flow and centrifugal movement.
  • this embodiment provides a heat dissipation device, including the fan unit described in the first embodiment.
  • this embodiment provides an electronic device, including the The heat dissipation device described above.
  • the electronic device in this embodiment may be a communication device (which may be a base station), a switching device, a computer, etc.
  • the electronic device provided by the present disclosure has the same technical advantages as the wind turbine unit of the first embodiment, which will not be described again here.
  • the fan unit includes: at least two fans, the axes of each fan are parallel to each other, the fan includes fan blades and air guide rings spaced on the outer periphery of the fan blades.
  • the inner ring of the wind ring includes an outlet section.
  • the outlet section includes: an expansion part, the diameter of which gradually increases along the air outlet direction of the fan; and a straight part, connected to the end of the expansion part in the air outlet direction. The diameter remains the same, and the airflow directions of each fan are parallel to each other after passing through the straight part.
  • the present disclosure sets at least two fans with axes parallel to each other, and the fans have an air guide ring located on the periphery of the fan blades.
  • the inner ring of the air guide ring is equipped with an outlet section, and the outlet section is first expanded to form an expansion part, and then an air guide ring with a different diameter is formed.
  • the straight part not only ensures the expansion effect, but also ensures that the air flows of each fan do not interfere with each other after exiting the outlet section. That is, the pressure expansion of the air outlet of the fan unit is achieved and the air flows of each air outlet do not interfere with each other.

Abstract

La présente invention concerne un ensemble ventilateur, un appareil de dissipation de chaleur et un dispositif électronique. L'ensemble ventilateur comprend au moins deux ventilateurs (1) ; les axes des ventilateurs sont parallèles l'un à l'autre ; chaque ventilateur comprend des pales de ventilateur (12) et une bague de guidage d'air (11) disposées à distance de la périphérie des pales de ventilateur ; une bague interne de la bague de guidage d'air comprend une section sortie (113). La section sortie comprend : une partie d'expansion (1131), le diamètre de la partie d'expansion étant progressivement augmenté dans une direction de sortie d'air du ventilateur ; et une partie droite (1132) qui est raccordée à l'extrémité arrière de la direction de sortie d'air de la partie d'expansion, le diamètre de la partie droite étant maintenu cohérent, et les directions d'écoulement d'air des ventilateurs étant parallèles l'une à l'autre après que l'écoulement d'air passe à travers la partie droite. Selon les ventilateurs, une interférence mutuelle d'écoulement d'air au niveau de sorties d'une pluralité de ventilateurs peut être évitée, et une interférence mutuelle d'écoulement d'air au niveau de sorties d'une pluralité de ventilateurs peut être réduite.
PCT/CN2023/080069 2022-07-29 2023-03-07 Ensemble ventilateur, appareil de dissipation de chaleur et dispositif électronique WO2024021612A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210909821.1 2022-07-29
CN202210909821.1A CN117432642A (zh) 2022-07-29 2022-07-29 风机组、散热装置及电子设备

Publications (1)

Publication Number Publication Date
WO2024021612A1 true WO2024021612A1 (fr) 2024-02-01

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PCT/CN2023/080069 WO2024021612A1 (fr) 2022-07-29 2023-03-07 Ensemble ventilateur, appareil de dissipation de chaleur et dispositif électronique

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CN (1) CN117432642A (fr)
WO (1) WO2024021612A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10148199A (ja) * 1996-11-18 1998-06-02 Mitsubishi Heavy Ind Ltd 軸流ファン装置
US20060257254A1 (en) * 2005-05-13 2006-11-16 Delta Electronics, Inc. Heat dissipation apparatus and fan frame thereof
US20070122278A1 (en) * 2005-09-21 2007-05-31 Delta Electronics, Inc. Heat dissipation apparatus
CN101290016A (zh) * 2007-04-17 2008-10-22 索尼株式会社 轴流式风扇装置、外罩和电子装置
CN101730451A (zh) * 2008-10-24 2010-06-09 富准精密工业(深圳)有限公司 散热装置
CN108443233A (zh) * 2018-03-30 2018-08-24 奇鋐科技股份有限公司 具有减振结构的风扇框体及其风扇
CN113883099A (zh) * 2021-11-17 2022-01-04 泛仕达机电股份有限公司 一种高效导风结构及其风机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10148199A (ja) * 1996-11-18 1998-06-02 Mitsubishi Heavy Ind Ltd 軸流ファン装置
US20060257254A1 (en) * 2005-05-13 2006-11-16 Delta Electronics, Inc. Heat dissipation apparatus and fan frame thereof
US20070122278A1 (en) * 2005-09-21 2007-05-31 Delta Electronics, Inc. Heat dissipation apparatus
CN101290016A (zh) * 2007-04-17 2008-10-22 索尼株式会社 轴流式风扇装置、外罩和电子装置
CN101730451A (zh) * 2008-10-24 2010-06-09 富准精密工业(深圳)有限公司 散热装置
CN108443233A (zh) * 2018-03-30 2018-08-24 奇鋐科技股份有限公司 具有减振结构的风扇框体及其风扇
CN113883099A (zh) * 2021-11-17 2022-01-04 泛仕达机电股份有限公司 一种高效导风结构及其风机

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