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CN115388018A - Fan device and electronic equipment - Google Patents

Fan device and electronic equipment Download PDF

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Publication number
CN115388018A
CN115388018A CN202110563372.5A CN202110563372A CN115388018A CN 115388018 A CN115388018 A CN 115388018A CN 202110563372 A CN202110563372 A CN 202110563372A CN 115388018 A CN115388018 A CN 115388018A
Authority
CN
China
Prior art keywords
frame body
guide
blade
frame
air outlet
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110563372.5A
Other languages
Chinese (zh)
Inventor
孟福生
徐青松
李帅
刘帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zte Intelligent Technology Nanjing Co ltd
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to CN202110563372.5A priority Critical patent/CN115388018A/en
Priority to PCT/CN2022/080662 priority patent/WO2022247397A1/en
Publication of CN115388018A publication Critical patent/CN115388018A/en
Pending legal-status Critical Current

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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
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • 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
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial 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
    • F04D29/66—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
    • 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
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The embodiment of the invention provides a fan device and electronic equipment, wherein the fan device comprises a movable blade assembly and a guide blade assembly positioned on one side of an air outlet of the movable blade assembly, wherein the movable blade assembly comprises a plurality of rotating blades and a driving mechanism for driving the plurality of rotating blades to rotate; the guide vane assembly is characterized by comprising a first frame body, a plurality of guide vanes and a plurality of automatic adjusting structures, wherein the guide vanes are all positioned on the inner side of the first frame body and are movably connected with the first frame body; each automatic adjustment structure is connected with each guide blade one-to-one, and each automatic adjustment structure is used for automatically adjusting the installation angle of the corresponding guide blade according to the wind power at the air outlet of the first frame body. The fan device and the electronic equipment provided by the embodiment of the invention can ensure that the airflow of the rotating blade and the airflow of the guide blade in the whole working section are matched, and can reduce the discrete noise caused by the interference of the rotating blade and the guide blade.

Description

Fan device and electronic equipment
Technical Field
The invention relates to the technical field of electronic communication, in particular to a fan device and electronic equipment.
Background
With the rapid development of the electronic communication field, the performances of the bearing, the fixed network, the wireless baseband processing unit (BBU), the server storage, the energy product and the like are continuously improved, which results in that the power consumption of the whole machine of each generation of products is increased by about 20%, and in order to meet the heat dissipation requirement of the air cooling product, the rotating speed of the fan needs to be correspondingly improved, but the noise of the whole machine is increased, so that the difficulty in noise reduction of the fan is brought.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a fan device and electronic equipment, which can ensure the matching of air flows of a rotating blade and a guide blade in the whole working section, improve the efficiency of the fan, and reduce the discrete noise caused by the interference of the rotating blade and the guide blade, thereby improving the heat dissipation performance of the whole machine.
The fan device comprises a movable blade assembly and a guide blade assembly positioned on the air outlet side of the movable blade assembly, wherein the movable blade assembly comprises a plurality of rotating blades and a driving mechanism for driving the plurality of rotating blades to rotate; the guide vane assembly comprises a first frame body, a plurality of guide vanes and a plurality of automatic adjusting structures, wherein the guide vanes are all positioned on the inner side of the first frame body and are movably connected with the first frame body;
each automatic adjusting structure is connected with each guide blade in a one-to-one correspondence mode, and each automatic adjusting structure is used for automatically adjusting the corresponding installation angle of each guide blade according to the wind power at the air outlet of the first frame body.
Optionally, each of the automatic adjusting structures includes a wind cover and a transmission mechanism, wherein the wind cover is located on one side of the air outlet of the first frame and movably connected to the first frame, and a part of the wind cover protrudes from the inner side wall of the first frame to the inner side of the first frame so as to be capable of moving along the axial direction of the air outlet of the first frame under the action of wind power;
the transmission mechanism is respectively movably connected with the wind power cover and the corresponding guide blade and is used for driving the guide blade to rotate when the wind power cover moves so as to change the installation angle.
Optionally, the transmission mechanism includes a first connecting rod, a second connecting rod, an elastic member and a limiting structure, wherein a limiting groove is formed in the first frame body and penetrates through the inner side and the outer side of the first frame body, the first connecting rod penetrates through the limiting groove and can move along the extending direction of the limiting groove, one end of the first connecting rod is connected with the guide vane, and the other end of the first connecting rod is movably connected with one end of the second connecting rod; the other end of the second connecting rod is movably connected with the wind power cover;
the limiting structure is arranged on the first frame body, is movably connected with the wind power cover and is used for limiting the wind power cover to move along the axial direction of the air outlet of the first frame body within a preset moving range;
the elastic piece is respectively connected with the first frame body and the wind power cover and is used for applying elastic force to the wind power cover to enable the wind power cover to reset to an initial position.
Optionally, the extending direction of the limiting groove is arc-shaped, and one end of the limiting groove is closer to the air outlet of the first frame body relative to the other end.
Optionally, the limiting structure includes a connecting piece and at least one limiting rod, wherein the connecting piece is located outside the first frame body and connected to the wind power cover, and the connecting piece is provided with at least one guiding through hole;
the limiting rod is connected with the first frame body and penetrates through the guide through holes in a one-to-one correspondence mode, and the limiting rod can move relative to the corresponding guide through holes when the wind power cover moves.
Optionally, a boss protruding from an outer side wall of the first frame body to an outer side of the first frame body is arranged at an end portion of the first frame body where the air outlet is located, and the wind power cover is mutually overlapped with the boss when located at the initial position; and the boss is provided with a through hole which penetrates through the boss along the axial direction of the air outlet of the first frame body, so that the connecting piece can penetrate through the through hole and extend to the position of the limiting rod.
Optionally, the elastic element includes an extension spring, and an axis of the extension spring is parallel to an axial direction of the air outlet of the first frame.
Optionally, the guide vane assembly further comprises a first hub, and a plurality of the guide vanes are arranged around the first hub; each of the guide blades includes a blade body, a first fixing rod and a second fixing rod, wherein,
the first fixing rod is arranged along the radial direction of the first hub, and two ends of the first fixing rod are respectively movably connected with the blade body and the first hub so that the blade body can rotate around the first fixing rod;
the second fixing rod and the first fixing rod are coaxially arranged, and two ends of the second fixing rod are movably connected with the blade body and the first frame body respectively.
Optionally, the moving blade assembly further includes a second frame and a second hub disposed inside the second frame, where the second frame is fixedly connected to the first frame;
the plurality of rotating blades are arranged around the second hub and connected with the second hub; the driving mechanism is connected with the second hub and used for driving the plurality of rotating blades to rotate through the second hub.
As another technical solution, an embodiment of the present invention further provides an electronic device, including the blower device provided in the embodiment of the present invention.
The embodiment of the invention has the following beneficial effects:
according to the fan device provided by the embodiment of the invention, the plurality of automatic adjusting structures are arranged and are connected with the plurality of guide blades in a one-to-one correspondence manner, each automatic adjusting structure is used for automatically adjusting the installation angle of the corresponding guide blade according to the wind power at the air outlet of the first frame body, and when the rotating speed of the rotating blade is changed, the installation angle of the guide blade is automatically adjusted, so that the air inlet attack angle of the guide blade is always adjusted to be in an optimal state, and therefore, the matching of the air flow of the rotating blade and the air flow of the guide blade in the whole working section can be ensured, the air flow loss is reduced, and the fan efficiency is further improved; and the problem of airflow separation of the suction surface of the guide vane can be avoided, so that the discrete noise caused by airflow interference of the rotating vane and the guide vane can be reduced, and the heat dissipation performance of the whole machine is improved.
According to the electronic equipment provided by the embodiment of the invention, by adopting the fan device provided by the embodiment of the invention, the matching of the air flow of the rotating blade and the guide blade in the whole working section can be ensured, the air flow loss is reduced, and the fan efficiency is further improved; and the problem of air flow separation of the suction surface of the guide vane can be avoided, so that the discrete noise caused by interference of the rotating vane and the guide vane can be reduced, and the heat dissipation performance of the whole machine is improved.
Drawings
Fig. 1 is a structural view of a fan apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram of a guide vane assembly on the outlet side as utilized in an embodiment of the present invention;
FIG. 3 is a side view of a guide vane assembly employed by embodiments of the present invention;
FIG. 4 is a partial block diagram of a guide vane assembly employed in embodiments of the present invention;
FIG. 5 is a partial cross-sectional view of a guide vane assembly employed in an embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of a wind shield and first frame employed in an embodiment of the present invention;
FIG. 7 is a block diagram of a guide vane employed in an embodiment of the present invention;
FIG. 8 is a state diagram of the drive mechanism employed in the embodiment of the present invention with the wind cowl in two different positions.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the fan device and the electronic device provided in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and the like in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Referring to fig. 1 and 2, a fan device according to an embodiment of the present invention includes a movable blade assembly 1 and a guide vane assembly 2 located on an air outlet side of the movable blade assembly 1, where the movable blade assembly 1 includes a plurality of rotating blades 11 and a driving mechanism (not shown in the drawings) for driving the plurality of rotating blades 11 to rotate; the guide vane assembly 2 includes a first frame 21, a plurality of guide vanes 23, and a plurality of automatic adjusting structures, wherein, as shown in fig. 2, the plurality of guide vanes 23 are all located inside the first frame 21 and are movably connected with the first frame 21.
In some optional embodiments, as shown in fig. 1, the movable blade assembly 1 further includes a second frame 13 and a second hub 12 disposed inside the second frame 13, wherein the second frame 13 is located on the air inlet side of the first frame 21 and is fixedly connected to the first frame 21, and the first frame 21 and the second frame 13 respectively define a channel on the insides of the two for air to flow. A plurality of rotating blades 11 are arranged around a second hub 12 and connected with the second hub 12; the driving mechanism is connected to the second hub 12 to drive the plurality of rotary blades 11 to rotate via the second hub 12. The drive mechanism is, for example, a rotary electric machine. Driven by the drive mechanism, the plurality of rotating blades 11 rotate to generate an air flow that flows toward the guide vane assembly 2, the direction of the air flow being the X direction shown in fig. 1.
In practical applications, the number of the rotating blades 11 is generally two or more. In some alternative embodiments, more than two rotating blades 11 are uniformly distributed in the circumferential direction of the second hub 12, so that the load-bearing uniformity of the second hub 12 connected to each rotating blade 11 in the circumferential direction thereof can be ensured, and the structural stability can be improved. For example, the number of the rotary blades 11 is two, three, four, five, six, and so on, and in the case where the number of the rotary blades 11 is six, as shown in fig. 1, the six rotary blades 11 are uniformly distributed in the circumferential direction of the second hub 12.
In practice, the number of guide vanes 23 is typically two or more. In some alternative embodiments, the number of the guide vanes 23 is the same as that of the rotating vanes 11, however, in practical applications, the number of the guide vanes 23 may be less than or more than that of the rotating vanes 11 according to different requirements, and the embodiment of the present invention is not limited thereto.
In some alternative embodiments, as shown in fig. 2, the guide vane assembly 2 further comprises a first hub 25, the plurality of guide blades 23 being circumferentially arranged around the first hub 25; also, as shown in fig. 7, each guide blade 23 includes a blade body 231, a first fixing rod 232, and a second fixing rod 233, wherein the first fixing rod 232 is disposed in a radial direction of the first hub 25 (i.e., a diameter direction passing through a center of a radial cross section of the first hub 25), and both ends of the first fixing rod 232 are movably connected to the blade body 231 and the first hub 25, respectively, so that the blade body 231 can rotate around the first fixing rod 232. The second fixing rod 233 and the first fixing rod 232 are coaxially disposed, and both ends of the second fixing rod 233 are movably connected to the blade body 231 and the first frame 21, respectively. That is, the first and second fixing rods 232 and 233 may serve as a rotation shaft of the blade body 231, about which the blade body 231 may be rotated to enable an angle (hereinafter, referred to as a mounting angle of the guide blade) between the blade body 231 (e.g., a suction surface) and a radial section of the first hub 25 to be changed.
In some alternative embodiments, the inner diameters of the first frame body 21 and the second frame body 13 are the same, and the first hub 25 is coaxially disposed with the second hub 12.
Each automatic adjustment structure is connected with each guide blade 23 in a one-to-one correspondence manner, and each automatic adjustment structure is used for automatically adjusting the installation angle of the corresponding guide blade 23 according to the wind power at the air outlet of the first frame body 21, that is, under the adjustment action of the automatic adjustment structure, the installation angle of the guide blade 23 can be changed along with the change of the wind power at the air outlet of the first frame body 21. As can be seen from the cascade velocity triangle, when the rotation speed of the rotary blade 11 increases, the circumferential velocity increases, which causes an increase in the intake angle of the guide blade 23, and at this time, if the installation angle of the guide blade 23 is fixed, the intake attack angle of the guide blade 23 increases, which causes separation of the suction surface airflow of the guide blade 23, which not only increases airflow loss and reduces fan efficiency, but also increases noise dispersion due to airflow interference between the rotary blade 11 and the guide blade 23. In order to solve the problem, according to the fan device provided by the embodiment of the invention, the installation angle of the corresponding guide blade 23 is automatically adjusted by using the automatic adjustment structure according to the wind power at the air outlet of the first frame body 21, so that when the rotation speed of the rotating blade 11 is changed, the air inlet attack angle of the guide blade 23 is always adjusted to an optimal state by automatically adjusting the installation angle of the guide blade 23, thereby not only ensuring that the air flow of the rotating blade 11 and the air flow of the guide blade 23 in the full working section are matched, reducing the air flow loss and further improving the fan efficiency; and the problem of air flow separation of the suction surface of the guide vane 23 can be avoided, so that the discrete noise caused by the air flow interference of the rotating vane 11 and the guide vane 23 can be reduced, and the heat dissipation performance of the whole machine is improved.
In some alternative embodiments, as shown in fig. 1 and 2, each of the automatic adjusting structures includes a wind power cover 24 and a transmission mechanism 22, wherein, as shown in fig. 3, the wind power cover 24 is located on the air outlet side of the first frame body 21 and is movably connected to the first frame body 21, and, as shown in fig. 6, a portion of the wind power cover 24 protrudes from the inner side wall of the first frame body 21 toward the inner side of the first frame body 21 so as to be movable in the axial direction of the air outlet of the first frame body 21 (i.e., the X direction in fig. 1) by the wind power. Optionally, the wind shield 24 is an annular shield having an inner diameter smaller than that of the first frame 21 so that an inner portion of the annular shield can protrude from an inner side wall of the first frame 21 toward an inner side thereof. Of course, in practical applications, the wind cowl 24 may have any other structure as long as it can move under the wind.
The transmission mechanisms 22 are respectively movably connected with the wind cowl 24 and the corresponding guide blades 23, and are used for driving the guide blades 23 to rotate when the wind cowl 24 moves so as to change the installation angle of the guide blades. When the wind cowl 24 moves by the wind, the power generated by the movement of the wind cowl 24 is converted into the rotational power through the transmission mechanism 22 and is transmitted to the guide vane 23, so that the installation angle of the guide vane 23 is automatically adjusted, and the amount of displacement of the wind cowl 24 determines the amount of change in the installation angle of the guide vane 23.
The structure of the transmission mechanism 22 may be various, for example, as shown in fig. 3 to 5, the transmission mechanism includes a first link 227, a second link 223, an elastic member 221, and a limiting structure, wherein a limiting groove 226 penetrating the inner side and the outer side of the first frame 21 is provided on the first frame 21, the first link 227 is inserted into the limiting groove 226 and can move along the extending direction of the limiting groove 226, and as shown in fig. 5, one end of the first link 227 is connected to the guide vane 23, and the other end of the first link 227 is movably connected to one end of the second link 223; the other end of the second connecting rod 223 is movably connected with the wind cover 24.
In some alternative embodiments, as shown in fig. 5, one end of the first link 227 is located inside the first frame 21 and is in threaded connection with the guide vane 23, and the other end passes through the limiting groove 226 from inside to outside and extends to the outside of the first frame 21 to be movably connected with the second link 223, the first link 227 and the second link 223 are movably connected, for example, hinged, specifically, a mounting hole is provided on the second link 223, the first link 227 passes through the mounting hole and can rotate in the mounting hole, and one end of the first link 227 close to the mounting hole is provided with a limiting portion to prevent the second link 223 from separating from the first link 227. Of course, in practical applications, the movable connection between the first link 227 and the second link 223 can be realized in any other manner.
The limiting structure is disposed on the first frame body 21 and movably connected to the wind-force cover 24, so as to limit the wind-force cover 24 to move in the axial direction (i.e., the X direction in fig. 3) of the air outlet of the first frame body 21 within a preset movement range, that is, the limiting structure is used to limit the movement direction and the movement range of the wind-force cover 24. In some alternative embodiments, as shown in fig. 3, the second connecting rod 223 is movably connected with the wind-force cover 24 through the limiting structure, however, the embodiment of the present invention is not limited to this, and in practical applications, the second connecting rod 223 may be directly movably connected with the wind-force cover 24.
In some alternative embodiments, as shown in fig. 3, the limiting structure includes a connecting member 222 and two limiting rods 224, wherein the connecting member 222 is located outside the first frame 21 and connected to the wind-force cover 24 by welding or integral molding, and two guiding through holes 225 are provided on the connecting member 222; as shown in fig. 4 and 5, each of the stopper rods 224 is connected to the first frame body 21, and is inserted into each of the guide through holes 225 in a one-to-one correspondence, and the stopper rods 224 can move relative to the corresponding guide through holes 225 when the wind cowl 24 moves. Alternatively, as shown in fig. 3, the guide through hole 225 may be, for example, a long hole, and a long axis direction of the long hole is parallel to the X direction in fig. 3, the stopper rod 224 can move along the long axis direction of the long hole, so that the moving direction of the wind cowl 24 can be limited in the X direction, and a length of the long hole in the long axis direction defines a moving range of the wind cowl 24. It should be noted that the number of the limiting rods 224 is not limited to two in the embodiment, and in practical applications, the number of the limiting rods 224 may also be one or more than three according to specific needs.
Optionally, one end of the limiting rod 224 is connected to the first frame 21 by a screw, and the other end is provided with a limiting portion for preventing the limiting rod from being separated from the connecting member 222.
It should be noted that, in the present embodiment, the number of the connecting pieces 222 is the same as that of the guide vanes 23, and the connecting pieces 222 correspond to one another, but the embodiment of the present invention is not limited to this, and in practical applications, the connecting pieces 222 may also be of an integral structure, that is, a plurality of connecting pieces 222 are connected into a whole, for example, an annular structure.
The elastic member 221 is connected to the first housing 21 and the wind cowl 24, respectively, and applies an elastic force to the wind cowl 24 to return the wind cowl to the initial position. Specifically, the elastic member 221 is connected to the connecting member 222 to drive the wind-force cover 24 to reposition through the connecting member 222. The reset direction of the wind cover 24 is opposite to the X direction in fig. 3, and the initial position of the wind cover 24 is the position contacting with the end of the first frame 21 where the air outlet is located.
In some alternative embodiments, as shown in fig. 3, the elastic member 221 includes an extension spring having an axis parallel to the axial direction (i.e., X direction) of the air outlet of the first frame body 21. With this arrangement, the direction of the elastic force applied by the tension spring to the wind power cover 24 is parallel to the X direction, thereby ensuring smooth resetting of the wind power cover 24.
In some alternative embodiments, as shown in fig. 5, the end of the first frame body 21 where the air outlet is located is provided with a boss 211 protruding from the outer side wall of the first frame body 21 to the outer side of the first frame body 21, and the wind scoops 24 overlap with the boss 211 when located at the initial position; moreover, a through hole penetrating the boss 211 along the axial direction (i.e., X direction) of the air outlet of the first frame 21 is disposed on the boss 211, so that the connecting piece 222 can pass through the through hole and extend to the position of the limiting rod 224.
In some alternative embodiments, as shown in fig. 3, the extending direction of the limiting groove 226 is a circular arc, and one end of the limiting groove 226 is closer to the air outlet of the first frame body 21 than the other end. This arrangement can guide the direction of rotation of the guide vane 23. Of course, in practical applications, the limiting groove 226 may also take any other shape as long as the guide vane 23 can rotate.
Referring to fig. 8, in a case where the wind cowl 24 is not acted upon by the wind or the wind cannot drive the wind cowl 24 to move, the wind cowl 24 is located at an initial position, i.e., at a position a1 as shown in fig. 8 (a), and the connection member 222 is located at a position b1 as shown in fig. 8 (a), and the first link 227 is located at an end of the stopper groove 226 away from the air outlet of the first frame body 21, i.e., at a position c1 as shown in fig. 8 (a), in which case, the installation angle of the guide blade 23 is located at an initial angle, which can be freely set according to specific needs. In the case where the wind cowl 24 is moved by the wind force applied to the wind cowl 24, the wind cowl 24 is moved from the initial position in a direction (i.e., X direction) away from the air outlet of the first frame body 21, for example, the position corresponding to the maximum displacement amount of the wind cowl 24 is located at a position a2 as shown in fig. 8 (b), in the process, the wind cowl 24 drives the connecting member 222 to move synchronously from the position b1 in the X direction with respect to the stopper rod 224 until the position b2 as shown in fig. 8 (b) is reached, the first link 227 moves counterclockwise (i.e., moves in the Y direction as shown in fig. 8) along the stopper groove 226 until the position at one end of the stopper groove 226 close to the air outlet of the first frame body 21, i.e., is located at a position c2 as shown in fig. a, and in this case, the installation angle of the guide blade 23 is rotated by a certain angle from the initial angle. Thereby, the automatic adjustment of the installation angle of the guide vane 23 is achieved.
In practical applications, the adjustable range of the installation angle of the guide vane 23 can be set by designing the position of the limit groove 226 on the first frame body 21 and the extending arc length of the limit groove 226, and the positions and sizes of other components can be adjusted adaptively.
In summary, in the fan device provided in the embodiment of the present invention, the plurality of automatic adjustment structures are arranged and are connected to the plurality of guide blades in a one-to-one correspondence manner, each automatic adjustment structure is configured to automatically adjust the installation angle of the corresponding guide blade according to the wind force at the air outlet of the first frame body, and when the rotation speed of the rotary blade changes, the installation angle of the guide blade is automatically adjusted, so that the air inlet attack angle of the guide blade is always adjusted to an optimal state, thereby ensuring that the air flow of the rotary blade and the air flow of the guide blade in the full working section are matched, reducing the air flow loss, and further improving the fan efficiency; and the problem of airflow separation of the suction surface of the guide vane can be avoided, so that the discrete noise caused by airflow interference of the rotating vane and the guide vane can be reduced, and the heat dissipation performance of the whole machine is improved.
As another technical solution, an embodiment of the present invention further provides an electronic device, which includes the fan apparatus provided in the embodiment of the present invention.
The electronic device provided by the embodiment of the invention is, for example, a carrier, a fixed network, a wireless baseband processing unit (BBU), a server memory, an energy product and the like.
According to the electronic equipment provided by the embodiment of the invention, by adopting the fan device provided by the embodiment of the invention, the matching of the air flow of the rotating blade and the guide blade in the whole working section can be ensured, the air flow loss is reduced, and the fan efficiency is further improved; and the problem of air flow separation of the suction surface of the guide vane can be avoided, so that the discrete noise caused by interference of the rotating vane and the guide vane can be reduced, and the heat dissipation performance of the whole machine is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. A fan device is characterized by comprising a movable blade assembly and a guide blade assembly positioned on the air outlet side of the movable blade assembly, wherein the movable blade assembly comprises a plurality of rotating blades and a driving mechanism for driving the plurality of rotating blades to rotate; the guide vane assembly comprises a first frame body, a plurality of guide vanes and a plurality of automatic adjusting structures, wherein the guide vanes are all positioned on the inner side of the first frame body and are movably connected with the first frame body;
each automatic adjusting structure is connected with each guide blade in a one-to-one correspondence mode, and each automatic adjusting structure is used for automatically adjusting the corresponding installation angle of each guide blade according to the wind power at the air outlet of the first frame body.
2. The fan device according to claim 1, wherein each of the automatic adjustment structures includes a wind force cover and a transmission mechanism, wherein the wind force cover is located on the air outlet side of the first frame body and is movably connected to the first frame body, and a part of the wind force cover protrudes from the inner side wall of the first frame body to the inner side of the first frame body so as to be capable of moving in the axial direction of the air outlet of the first frame body under the action of wind force;
the transmission mechanism is respectively movably connected with the wind power cover and the corresponding guide blade and is used for driving the guide blade to rotate when the wind power cover moves so as to change the installation angle.
3. The fan device according to claim 2, wherein the transmission mechanism includes a first link, a second link, an elastic member, and a limiting structure, wherein a limiting groove is provided in the first frame to pass through an inner side and an outer side of the first frame, the first link is inserted into the limiting groove and is movable in an extending direction of the limiting groove, one end of the first link is connected to the guide blade, and the other end of the first link is movably connected to one end of the second link; the other end of the second connecting rod is movably connected with the wind power cover;
the limiting structure is arranged on the first frame body, is movably connected with the wind power cover and is used for limiting the wind power cover to move along the axial direction of the air outlet of the first frame body within a preset moving range;
the elastic piece is respectively connected with the first frame body and the wind power cover and is used for applying elastic force to the wind power cover to enable the wind power cover to reset to an initial position.
4. The fan apparatus according to claim 3, wherein the extending direction of the limiting groove is arc-shaped, and one end of the limiting groove is closer to the air outlet of the first frame body than the other end.
5. The fan device according to claim 3, wherein the limiting structure comprises a connecting piece and at least one limiting rod, wherein the connecting piece is positioned outside the first frame body and connected with the wind power cover, and at least one guide through hole is formed in the connecting piece;
the limiting rod is connected with the first frame body and penetrates through the guide through holes in a one-to-one correspondence mode, and the limiting rod can move relative to the corresponding guide through holes when the wind power cover moves.
6. The fan device according to claim 5, wherein a boss protruding from an outer side wall of the first frame body to an outer side of the first frame body is provided at an end portion of the first frame body where the air outlet is located, and the wind scoops overlap with the boss when located at the initial position; and a through hole which penetrates through the boss along the axial direction of the air outlet of the first frame body is formed in the boss and is used for the connecting piece to penetrate through and extend to the position of the limiting rod.
7. The fan apparatus according to claim 3, wherein the elastic member includes an extension spring having an axis parallel to an axial direction of the air outlet of the first frame.
8. The fan apparatus of any of claims 1-7, wherein the guide vane assembly further comprises a first hub, the plurality of guide vanes circumferentially disposed about the first hub; each of the guide blades includes a blade body, a first fixing rod and a second fixing rod, wherein,
the first fixing rod is arranged along the radial direction of the first hub, and two ends of the first fixing rod are respectively movably connected with the blade body and the first hub so that the blade body can rotate around the first fixing rod;
the second fixing rod and the first fixing rod are coaxially arranged, and two ends of the second fixing rod are movably connected with the blade body and the first frame body respectively.
9. The fan device according to any one of claims 1 to 7, wherein the blade assembly further comprises a second frame and a second hub disposed inside the second frame, wherein the second frame is fixedly connected to the first frame;
the plurality of rotating blades are arranged around the second hub and connected with the second hub; the driving mechanism is connected with the second hub and used for driving the plurality of rotating blades to rotate through the second hub.
10. An electronic device, characterized in that it comprises a blower device according to any one of claims 1 to 9.
CN202110563372.5A 2021-05-24 2021-05-24 Fan device and electronic equipment Pending CN115388018A (en)

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CN116988177A (en) * 2023-08-04 2023-11-03 江苏中尼机械科技有限公司 Exhaust device for spinning machine
CN116877483B (en) * 2023-08-04 2024-02-02 火星人厨具股份有限公司 Impeller device, fan and household appliance

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