WO2017211093A1 - 一种带永磁无刷电机系统的蜗壳离心风机 - Google Patents

一种带永磁无刷电机系统的蜗壳离心风机 Download PDF

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Publication number
WO2017211093A1
WO2017211093A1 PCT/CN2017/073595 CN2017073595W WO2017211093A1 WO 2017211093 A1 WO2017211093 A1 WO 2017211093A1 CN 2017073595 W CN2017073595 W CN 2017073595W WO 2017211093 A1 WO2017211093 A1 WO 2017211093A1
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WO
WIPO (PCT)
Prior art keywords
volute
heat dissipation
centrifugal fan
permanent magnet
bridge
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PCT/CN2017/073595
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English (en)
French (fr)
Inventor
章启忠
张唯
Original Assignee
浙江亿利达风机股份有限公司
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Application filed by 浙江亿利达风机股份有限公司 filed Critical 浙江亿利达风机股份有限公司
Priority to KR2020177000073U priority Critical patent/KR200489464Y1/ko
Priority to US15/579,107 priority patent/US10215181B2/en
Priority to JP2017600134U priority patent/JP3223079U/ja
Priority to EP17809534.5A priority patent/EP3388683B1/en
Publication of WO2017211093A1 publication Critical patent/WO2017211093A1/zh

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    • 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
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/068—Mechanical details of the pump control unit
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • 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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5826—Cooling at least part of the working fluid in a heat exchanger

Definitions

  • the invention relates to a novel volute centrifugal fan with a permanent magnet brushless motor system.
  • the traditional volute centrifugal fan includes a snail fan and a permanent magnet brushless motor system for driving, wherein the permanent magnet brushless motor system is integrated (the driver and the permanent magnet motor body are integrated) or the permanent magnet brushless motor system is separated, forever Magnetic brushless motor system separate type permanent magnet brushless motor body and driver, wherein the heat dissipation of the driver is basically through natural air heat dissipation, and the heat dissipation method has low heat dissipation efficiency, especially when the centrifugal fan has a large air volume and a large pressure when the driver is at a high temperature Operation directly affects the life and efficiency of the drive.
  • the whole snail centrifugal fan with permanent magnet brushless motor system is easy to install, plug and play, and energy efficient. It is urgently needed in the ventilation and refrigeration industry.
  • the output air volume and pressure are the largest, the efficiency is the highest, and the noise is the smallest.
  • the motor of the same volute centrifugal fan is the smallest, the output power is the largest, and the motor efficiency is the highest.
  • the permanent magnet brushless motor system has the smallest motor body, but the driver is added.
  • the whole volume of the permanent magnet brushless motor system will also increase, which directly affects the performance of the volute centrifugal fan, in order to reduce
  • the size of the permanent magnet brushless motor system generally separates the driver from the outer surface of the volute fan, but this solution will affect the size of the fan, affecting the customer's installation and use, increasing the trouble of installation, and separating.
  • the driver also dissipates heat by means of natural heat dissipation. This heat dissipation method with low heat dissipation will result in reduced operating efficiency and reduced life of the drive. The overall efficiency and life of the snail centrifugal fan of the permanent magnet brushless motor system.
  • the technical problem to be solved by the present invention is to provide a novel volute centrifugal fan with a permanent magnet brushless motor system, which can change the heat dissipation effect of the driver according to the change of the load of the centrifugal fan.
  • the invention discloses a novel volute centrifugal fan with a permanent magnet brushless motor system, comprising a volute, an outer rotor motor mounted in the volute through a bracket, and an impeller disposed outside the outer rotor motor, the impeller being located in the volute
  • the impeller is connected with the outer rotor motor
  • the volute is composed of a volute and side plates on both sides of the worm plate, and the air inlets are arranged on the side plates on both sides, and the air outlets are arranged on one side of the volute, and the characteristics are:
  • the center of the tuyere is a horizontal plane, and an opening is formed on a portion of the volute on the horizontal surface;
  • the bridge is provided with a matching bridge-type radiator, and the bridge-type radiator radiator sinks into the volute through the opening
  • the bridge-type radiator is closely attached to the surface of the volute;
  • the bridge-type radiator is mounted with a driver matched with the outer rotor motor; and the
  • the number of the fixing ribs is 1 to 19; the width of the fixing rib is 1 to 10 mm; the number of the positioning holes is 2 to 20; and the width of the positioning holes is less than 12 mm.
  • the width of the spacing between the sets of the heat dissipation ribs is equal to or greater than the width of the fixed ribs, and the width of the heat dissipation ribs is equal to or smaller than the width of the positioning holes;
  • the heat dissipation rib is the surface of the bridged heat sink contacting the worm plate downward a convex concentric circular boss having a radius larger than a radius of a position where the bridge arch radiator is mounted on the volute after the volute is formed, and the heat dissipation rib protrudes downward at the lower surface of the bridge arch radiator
  • the heat sink has a protruding height of 1 to 5 mm.
  • the bridge-type heat sink is sealed and assembled with the surface of the volute through a sealant or a sealing gasket.
  • the bridge arch heat sink area is larger than the opening area.
  • the front and rear side extension surfaces of the worm plate, the right side tangential surface of the volute plate, and the side surface extension surface of the volute plate meet to form a confinement space; the driver is located in the confinement space.
  • the novel volute centrifugal fan with the permanent magnet brushless motor system of the present invention when the novel volute centrifugal fan with the permanent magnet brushless motor system of the present invention is in operation, the external wind enters from the air inlet on the side plates on both sides of the worm plate, and the impeller A wind passage is formed between the inner wall of the volute and the wind that enters the air inlet along the trajectory of the air duct from the air outlet, due to the heat dissipation air passage formed between the heat dissipation ribs.
  • the flow direction of the air outlet is the same, so the heat dissipation ribs located in the air duct do not block the flow of the wind and do not interfere with the flow path of the wind.
  • the distribution direction of the heat dissipation air flow path is consistent with the wind flow direction of the wind, and the wind can be extremely smooth. Flow along the trajectory of the cooling airflow path, and finally flow out from the air outlet, which will not affect the performance and noise of the fan.
  • the wind will take away the heat on the heat dissipation ribs, thereby achieving the heat dissipation effect. If the air volume and pressure of the centrifugal fan increase, the power of the permanent magnet brushless motor system that drives the fan increases, and the heat dissipation also needs to be accelerated.
  • the heat dissipation efficiency of the volute centrifugal fan of the magnetic brushless motor system is also increased, and the drive is in a low temperature operation state.
  • This heat dissipation method does not need to add other heat dissipation equipment, does not increase the production cost of the volute centrifugal fan, and does not enlarge the volute centrifugal.
  • the shape and volume of the fan can maximize the heat dissipation efficiency of the drive, thereby improving the operating efficiency of the radiator, prolonging the service life of the drive, and prolonging the service life of the volute centrifugal fan.
  • FIG. 1 is a schematic structural view of an angle of a volute centrifugal fan with a permanent magnet brushless motor system according to the present invention
  • FIG. 2 is a schematic structural view of another perspective of a volute centrifugal fan with a permanent magnet brushless motor system according to the present invention
  • Figure 3 is a side view of a novel volute centrifugal fan with a permanent magnet brushless motor system of the present invention
  • FIG. 4 is a schematic structural view of a bridge type heat sink.
  • the present invention provides a novel volute centrifugal fan with a permanent magnet brushless motor system, comprising a volute, an outer rotor motor 2 mounted in the volute 1 and an outer rotor motor. 2 outside the impeller 3, the impeller 3 is located in the volute 1, the impeller 3 is connected to the outer rotor motor 2, and the volute 1 is composed of a worm plate 4 and side plates 5 on both sides of the worm plate.
  • the side plates 5 of the two sides are provided with an air inlet 6 , and the air outlet 7 is provided on one side of the volute 1 , and the center of the air outlet 7 is a horizontal plane 8 , and an opening 9 is formed on a portion of the volute 4 on the horizontal surface 8;
  • a bridge arch radiator 10 matching the same is installed at the opening 9, and the bridge radiator 10 is closely attached to the surface of the worm plate 4;
  • the bridge radiator 10 is mounted with the outer rotor motor 2 a plurality of evenly distributed fixing ribs 12 are defined in the opening 9, and a positioning hole 13 is formed between the fixing ribs 12; a wind channel is formed between the volute and the impeller; and the bridge type radiator 10
  • a plurality of heat dissipating ribs 14 are disposed on the lower surface thereof, and the heat dissipating ribs 14 pass through the matching positioning holes 13 and are located in the air duct 1;
  • the heat dissipating ribs 14 are composed of a plurality of evenly distributed
  • the radish 15 arc radius is larger than the arc radius of the position where the driver is mounted on the volute 4 after the volute is formed; the heat dissipating air flow path 16 is formed between the heat dissipating ribs 15, and the air flow path of the heat dissipating air flow path 16 and the air outlet 7 is consistent. .
  • the number of the fixing ribs 12 is 1 to 19; the width of the fixing ribs 12 is 1 to 10 mm; the number of the positioning holes 13 is 2 to 20; and the width of the positioning holes 13 is less than 12 mm.
  • the width of the gap between the heat dissipation ribs 14 is equal to or greater than the width of the fixed ribs 12, and the width of the heat dissipation ribs 14 is equal to or smaller than the width of the positioning holes 13;
  • the heat dissipation ribs 15 are bridge type radiators and worm plates a concentric circular boss protruding downward from the contact surface, the radius of the concentric circle being larger than the radius of the position of the worm plate 4 on which the bridge arch radiator 10 is mounted, and the heat dissipation rib 15 being under the bridge arch radiator 10
  • the surface protrudes downward, and the heat radiating rib 15 protrudes from a height of 1 to 5 mm.
  • the bridge-type heat sink 10 is sealed and assembled with the surface of the worm plate 4 by a sealant or a sealing gasket.
  • the bridge-type heat sink 10 has an area larger than the area of the opening 9.
  • the front and rear side extension surfaces of the worm plate 4, the right side tangent plane 17 of the worm plate 4, and the upper side extension surface 18 of the worm plate 4 meet to form a restriction space 19; the driver 11 is located in the restriction space 19.
  • the method of use of the present invention is as follows:
  • the outer rotor motor 2 When the volute centrifugal fan starts to be used, the outer rotor motor 2 will start to operate, the impeller 3 will rotate with it, and the outside wind will enter from the air inlet 6 of the volute 4 on both sides, and the impeller 3 and the inner wall of the volute 1 A wind passage will be formed between the air, and the wind entering the air inlet 6 will flow out from the air outlet 7 along the trajectory of the air passage, so that the wind continuously enters from the air inlet 6 The air is discharged from the air outlet 7, and the wind is always flowing in the air duct.
  • the heat radiating rib group 14 located in the volute 1 is also located in the air duct.
  • the heat generated by the operation of the drive 11 is directly transmitted to the bridged radiator 10 connected thereto, and the heat is finally transmitted to the heat dissipation rib group 14 and then specifically distributed to the heat dissipation ribs 15 due to the heat dissipation ribs 15
  • the heat dissipation air passage 16 formed between the air passages 16 and the air outlets 7 are in the same direction, so that the heat dissipation ribs 15 located in the air passages do not block the flow of the wind, and do not interfere with the flow path of the wind, but the distribution direction of the heat dissipation air passages 16 and the wind.
  • the flow direction of the air duct is uniform, the wind can flow smoothly along the trajectory of the heat dissipation air passage 16, and finally flows out from the air outlet 7, and the heat radiating rib 15 protrudes downward from the surface of the bridge-shaped radiator and the volute.
  • a concentric circular boss having a radius larger than a radius of a position at which the bridged heat sink 10 is mounted on the worm plate 4, and a wind that flows from the lower surface of the heat radiating rib 15 is guided by the arc of the heat radiating rib 15 The flow can smoothly flow toward the air outlet 7 without affecting the normal flow of the wind inside the volute centrifugal fan.
  • This heat dissipation method not only does not need to add other heat dissipation equipment, but also reduces the cost of the driver component and the area of the heat sink, does not increase the production cost of the volute centrifugal fan and does not Expanding the volume of the volute centrifugal fan can maximize the heat dissipation efficiency of the drive 11, thereby improving the operating efficiency of the bridge-type radiator 10, extending the service life of the drive 11, and extending the service life of the volute centrifugal fan in nature.
  • the heat generated by the volute centrifugal fan can be used to dissipate heat, which can increase the heat dissipation effect by more than 2 times and the temperature rise by 50%.
  • the number of fixing ribs is 1 to 19, the width of the fixing ribs 12 is 1 to 10 mm, the number of positioning holes 13 is 2 to 20, and the width of the positioning holes 13 is less than 12 mm.
  • This arrangement can prevent the area of the opening 9 from being too large.
  • the fixing rib 12 can effectively enhance the strength of the opening 9 region, the volute 1 does not deform, and the stability of the volute centrifugal fan structure is ensured, and the arrangement is There is no need to change the manufacturing process of the volute centrifugal fan in order to prevent the deformation of the volute, and the trouble is reduced.
  • the width of the gap between the heat dissipation ribs 14 is equal to or greater than the width of the fixed ribs 12, and the width of the heat dissipation ribs 14 is equal to or smaller than the width of the positioning holes 13, thereby ensuring that the heat dissipation ribs 14 can effectively pass through the positioning holes 13 and In the air duct, and the heat radiating rib 15 protrudes downward at the lower surface of the bridge arch radiator 10, the heat radiating rib 15 protrudes from a height of 1 to 5 mm, and the heat radiating rib 15 in the protruding height range can minimize the self.
  • volute centrifugal fan can also be positive when the heat radiating rib 15 is in the air duct.
  • a circular boss having a concentric circle that is normally operated and which is a downwardly convex surface of the bridge arched heat sink and the volute.
  • the radius of the concentric circle is larger than the radius of the position of the worm plate 4 on which the bridged radiator 10 is mounted. It can minimize the influence of the heat dissipation ribs 15 on the performance of the volute centrifugal fan.
  • the bridge arch radiator 10 is sealed and assembled with the surface of the worm plate 4 through a sealant or a sealing gasket, so that the wind in the centrifugal fan of the volute does not leak out from the positioning hole, so that the efficiency of the volute centrifugal fan is ensured, and the bridge arch is ensured.
  • the area of the radiator 10 is larger than the area of the opening 9, and the sealing between the bridge radiator 10 and the worm 4 can be further improved.
  • the front and rear side extension surfaces of the worm plate 4, the right side tangential surface 17 of the worm plate 4, and the upper side extension surface 18 of the worm plate 4 meet to form a restriction space 19, and the driver 11 is located in the restriction space 19, so that the driver 11 is externally mounted.
  • it will not affect the overall size of the volute centrifugal fan, and will not affect the installation of the volute centrifugal fan.

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

Abstract

一种带永磁无刷电机系统的蜗壳离心风机，包括蜗壳（1）、通过支架安装在蜗壳（1）内的外转子电机（2）以及外套设于外转子电机（2）外的叶轮（3），叶轮（3）位于蜗壳（1）内，叶轮（3）与外转子电机（2）相连接，蜗壳（1）由蜗板（4）和位于蜗板（4）两侧的侧板（5）组成，两侧侧板（5）上设有进风口（6），蜗壳（1）一侧设有出风口（7），以出风口（7）中心位置为水平面（8），蜗板（4）处于该水平面（8）上的部分上设有一开口（9）；该开口（9）处安装有与其相匹配的桥拱式散热器（10），桥拱式散热器（10）散热筋（15）通过开口（9）处沉进蜗壳（1）与叶轮（3）之间形成的风道（16）内，桥拱式散热器（10）与蜗板（4）表面紧密贴合。该带永磁无刷电机系统的蜗壳离心风机能随离心风机负载的变化改变驱动器的散热效果，负载越大，驱动器的散热效果会更好，确保驱动器处于低温运行状态，增加了驱动器的运行效率，延长驱动器的使用寿命。

Description

[根据细则37.2由ISA制定的发明名称]　一种带永磁无刷电机系统的蜗壳离心风机 技术领域
本发明涉及一种新型带永磁无刷电机系统的蜗壳离心风机。
背景技术
传统蜗壳离心风机包括蜗壳风机、驱动所用的永磁无刷电机系统，其中永磁无刷电机系统作为整体(驱动器与永磁电机本体为一体)或永磁无刷电机系统分离式，永磁无刷电机系统分离式含永磁无刷电机本体和驱动器，其中驱动器散热基本是通过自然空气散热，而这种散热方式散热效率低，特别是离心风机大风量和大压力时驱动器处于高温下运行，直接影响驱动器的寿命和效率。
且随着能效提升和客户的方便使用，“方便安装，即插即用，高效节能”的整体带永磁无刷电机系统蜗壳离心风机成为通风和制冷行业的急需，同体积蜗壳离心风机输出风量和压力最大，效率最高，噪音最小，驱动相同蜗壳离心风机电机体积最小，输出功率最大，电机效率最高。这样永磁无刷电机系统电机本体最小，但增加了驱动器，如果把驱动器与永磁电机本体作为整体，永磁无刷电机系统整体积也会增大，直接影响蜗壳离心风机性能，为了缩小永磁无刷电机系统的体积，一般都会将驱动器分离出来外置在蜗壳风机外表面上，但这种解决方式会影响风机外形尺寸，影响客户安装使用，增加安装时的麻烦，同时分离的驱动器同样通过自然散热的方式进行散热，这种散热效率低的散热方式会致使驱动器的运行效率下降和寿命减少，降低带 永磁无刷电机系统蜗壳离心风机整体效率和寿命。
发明内容
本发明要解决的技术问题是提供一种新型带永磁无刷电机系统的蜗壳离心风机，它能随离心风机负载的变化改变驱动器的散热效果，负载越大，驱动器的散热效果会更好，确保驱动器处于低温运行状态，增加了驱动器的运行效率，延长驱动器的使用寿命。
本发明解决上述技术问题采用的技术方案为：
本发明公开一种新型带永磁无刷电机系统的蜗壳离心风机，包括蜗壳、通过支架安装在蜗壳内的外转子电机以及外套设于外转子电机外的叶轮，叶轮位于蜗壳内，叶轮与外转子电机相连接，蜗壳由蜗板和位于蜗板两侧的侧板组成，两侧侧板上设有进风口，蜗壳一侧设有出风口，其特征在于：以出风口中心位置为水平面，蜗板处于该水平面上的部分上设有一开口；所述开口处安装有与其相匹配的桥拱式散热器，桥拱式散热器散热筋通过开口处沉进蜗壳与叶轮之间形成的风道内，桥拱式散热器与蜗板表面紧密贴合；所述桥拱式散热器上安装有与外转子电机相匹配的驱动器；所述开口内设有若干均匀分布的固定筋，固定筋之间形成有定位孔；所述蜗壳与叶轮之间形成有一风道；所述桥拱式散热器包括若干设于其下表面的散热筋组，散热筋组穿过与其相匹配的定位孔并位于风道内；所述散热筋组由若干均匀分布的散热筋组成，散热筋弧度半径大于驱动器安装在蜗壳成型后的蜗板上的位置的弧度半径；所述散热筋之间形成有散热风流道，散热风流道与出风口出风的流向一致。
所述固定筋个数为1至19个；所述固定筋宽度为1至10mm；所述定位孔个数为2至20个；所述定位孔宽度小于12mm。
所述散热筋组之间的间距宽度等于或大于固定筋的宽度，散热筋组的自身宽度等于或小于定位孔的宽度；所述散热筋为桥拱式散热器与蜗板接触的表面向下凸出的同心圆的圆凸台，该同心圆的半径大于蜗壳成型后蜗板上安装有桥拱式散热器的位置的半径，散热筋于桥拱式散热器下表面处向下凸出，散热筋凸出高度为1至5mm。
所述桥拱式散热器通过密封胶或密封垫圈与蜗板表面进行密封装配。
所述桥拱式散热器面积大于开口面积。
所述蜗板前后两侧侧面延伸面、蜗板右侧相切面以及蜗板上侧侧面延伸面交汇形成一限制空间；所述驱动器位于限制空间内。
本发明的有益效果是：
与现有技术相比，采用本发明结构的新型带永磁无刷电机系统的蜗壳离心风机在运行时，外界的风便会从蜗板两侧的侧板上的进风口进入，而叶轮与蜗壳内壁之间会形成一条风道，在叶轮的旋转带动下，进入到进风口内的风会顺着风道的轨迹从出风口流出，由于由散热筋之间形成的散热风流道与出风口出风的流向一致，因此位于风道内的散热筋不会阻隔风的流动，不会干扰风的流动轨迹，反而散热风流道的分布方向与风的风道流向一致，风能够无比顺畅的顺着散热风流道的轨迹进行流动，最后从出风口流出，不会影响风机性能和噪音，在风经过散热风流道时，风会带走散热筋上的热量，从而起到散热的效 果，使风资源得到充分有效的利用，同时随着离心风机的风量和压力增加，驱动风机的永磁无刷电机系统功率增大，散热也要加快，由于风量增加，风速加快，新型带永磁无刷电机系统的蜗壳离心风机散热效率也增大，驱动器处于低温运行状态，这种散热方式不仅无需增设其他散热设备，不会增加蜗壳离心风机的生产成本以及不会扩大蜗壳离心风机的外形体积，更能最大程度上加快驱动器的散热效率，从而提高散热器的运行效率，延长驱动器的使用寿命，延长蜗壳离心风机的使用寿命。
附图说明
图1是本发明新型带永磁无刷电机系统的蜗壳离心风机的一个角度的结构示意图；
图2是本发明新型带永磁无刷电机系统的蜗壳离心风机的另一个角度的结构示意图；
图3是本发明新型带永磁无刷电机系统的蜗壳离心风机的侧视图；
图4是桥拱式散热器的结构示意图。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步详细的说明：
请参阅图1至图4，本发明提供一种新型带永磁无刷电机系统的蜗壳离心风机，包括蜗壳1、架设在蜗壳1内的外转子电机2以及外套设于外转子电机2外的叶轮3，叶轮3位于蜗壳1内，叶轮3与外转子电机2相连接，蜗壳1由蜗板4和位于蜗板两侧的侧板5组成， 两侧侧板5设有进风口6，蜗壳1一侧设有出风口7，以出风口7中心位置为水平面8，蜗板4处于该水平面8上的部分上设有一开口9；所述开口9处安装有与其相匹配的桥拱式散热器10，桥拱式散热器10与蜗板4表面紧密贴合；所述桥拱式散热器10上安装有与外转子电机2相匹配的驱动器11；所述开口9内设有若干均匀分布的固定筋12，固定筋12之间形成有定位孔13；所述蜗壳与叶轮之间形成有一风道；所述桥拱式散热器10包括若干设于其下表面的散热筋组14，散热筋组14穿过与其相匹配的定位孔13并位于风道1内；所述散热筋组14由若干均匀分布的散热筋15组成，散热筋15弧度半径大于驱动器安装在蜗壳成型后的蜗板4上的位置的弧度半径；所述散热筋15之间形成有散热风流道16，散热风流道16与出风口7出风的流向一致。
所述固定筋12个数为1至19个；所述固定筋12宽度为1至10mm；所述定位孔13个数为2至20个；所述定位孔13宽度小于12mm。
所述散热筋组14之间的间距宽度等于或大于固定筋12的宽度，散热筋组14的自身宽度等于或小于定位孔13的宽度；所述散热筋15为桥拱式散热器与蜗板接触的表面向下凸出的同心圆的圆凸台，，该同心圆的半径大于蜗板4上安装有桥拱式散热器10的位置的半径，散热筋15于桥拱式散热器10下表面处向下凸出，散热筋15凸出高度为1至5mm。
所述桥拱式散热器10通过密封胶或密封垫圈与蜗板4表面进行密封装配。
所述桥拱式散热器10面积大于开口9面积。
所述蜗板4前后两侧侧面延伸面、蜗板4右侧相切面17以及蜗板4上侧侧面延伸面18交汇形成一限制空间19；所述驱动器11位于限制空间19内。
本发明的使用方法如下：
当蜗壳离心风机开始使用时，外转子电机2便会开始运行，叶轮3随之旋转，外界的风便会从两侧蜗板4的进风口6进入，而叶轮3与蜗壳1内壁之间会形成一条风道，在叶轮3的旋转带动下，进入到进风口6内的风会顺着风道的轨迹从出风口7流出，如此反复循环，不断有外界的风从进风口6进入、从出风口7排出，风道内始终有风在流动，位于蜗壳1内的散热筋组14此时也位于风道内。
驱动器11运行时产生的热量则会直接传递至与其相连接的桥拱式散热器10上，热量最终都会传递至散热筋组14上，再具体分布至散热筋15上，由于由散热筋15之间形成的散热风流道16与出风口7出风的流向一致，因此位于风道内的散热筋15不会阻隔风的流动，不会干扰风的流动轨迹，反而散热风流道16的分布方向与风的风道流向一致，风能够无比顺畅的顺着散热风流道16的轨迹进行流动，最后从出风口7流出，且散热筋15为桥拱式散热器与蜗板接触的表面向下凸出的同心圆的圆凸台，该同心圆的半径大于蜗板4上安装有桥拱式散热器10的位置的半径，从散热筋15下表面流动过的风在散热筋15所具有的弧度的引导下能够顺畅的朝着出风口7方向流动，不会影响蜗壳离心风机内风的正常流动，在风经过散热风流道16时， 风会带走散热筋15上的热量，从而起到散热的效果，使风资源得到有效的利用，同时随着离心风机的风量和压力增加，新型带永磁无刷电机系统的蜗壳离心风机散热效率也相应增大，驱动器处于低温运行状态，这种散热方式不仅无需增设其他散热设备，还能降低驱动器元件的成本和散热器的面积，不会增加蜗壳离心风机的生产成本以及不会扩大蜗壳离心风机的体积，更能最大程度上加快驱动器11的散热效率，从而提高桥拱式散热器10的运行效率，延长驱动器11的使用寿命，延长蜗壳离心风机的使用寿命，在自然散热的基础上，利用蜗壳离心风机产生的风进行散热，能够将散热效果提高2倍以上，温升降低50％。
固定筋12个数为1至19个，固定筋12宽度为1至10mm，定位孔13个数为2至20个，定位孔13宽度小于12mm，这种设置方式能够防止由于开口9面积过大导致蜗壳1出现变形的情况，固定筋12能够有效的起到加强开口9区域强度的效果，蜗壳1不会出现变形的情况，保证蜗壳离心风机结构的稳定性，且这种设置方式便无需为了防止蜗壳变形从而改变蜗壳离心风机的制造工艺，减少了麻烦。
散热筋组14之间的间距宽度等于或大于固定筋12的宽度，散热筋组14的自身宽度等于或小于定位孔13的宽度，从而保证散热筋组14能够有效的穿过定位孔13并处于风道内，且散热筋15于桥拱式散热器10下表面处向下凸出，散热筋15凸出高度为1至5mm，处于该凸出高度范围内的散热筋15能够最大程度上减弱自身对风正常流动的影响，保证蜗壳离心风机在散热筋15处于风道内时同样能够正 常运行，且为桥拱式散热器与蜗板接触的表面向下凸出的同心圆的圆凸台，该同心圆的半径大于蜗板4上安装有桥拱式散热器10的位置的半径，能够最大程度上降低散热筋15对蜗壳离心风机性能的影响。
桥拱式散热器10通过密封胶或密封垫圈与蜗板4表面进行密封装配，保证蜗壳离心风机内的风不会从定位孔泄漏出去，使蜗壳离心风机的效能得到保障，且桥拱式散热器10面积大于开口9面积，能进一步提高桥拱式散热器10与蜗板4之间的密封性。
蜗板4前后两侧侧面延伸面、蜗板4右侧相切面17以及蜗板4上侧侧面延伸面18交汇形成限制空间19，驱动器11位于限制空间19内，因此驱动器11虽然是外置安装，但不会影响蜗壳离心风机的整体外形尺寸，不会对蜗壳离心风机的安装造成影响。

Claims (6)

  1. 一种新型带永磁无刷电机系统的蜗壳离心风机，包括蜗壳、通过支架安装在蜗壳内的外转子电机以及外套设于外转子电机外的叶轮，叶轮位于蜗壳内，叶轮与外转子电机相连接，蜗壳由蜗板和位于蜗板两侧的侧板组成，两侧侧板上设有进风口，蜗壳一侧设有出风口，其特征在于：以出风口中心位置为水平面，蜗板处于该水平面上的部分上设有一开口；所述开口处安装有与其相匹配的桥拱式散热器，桥拱式散热器散热筋通过开口处沉进蜗壳与叶轮之间形成的风道内，桥拱式散热器与蜗板表面紧密贴合；所述桥拱式散热器上安装有与外转子电机相匹配的驱动器；所述开口内设有若干均匀分布的固定筋，固定筋之间形成有定位孔；所述蜗壳与叶轮之间形成有一风道；所述桥拱式散热器包括若干设于其下表面的散热筋组，散热筋组穿过与其相匹配的定位孔并位于风道内；所述散热筋组由若干均匀分布的散热筋组成，散热筋弧度半径大于驱动器安装在蜗壳成型后的蜗板上的位置的弧度半径；所述散热筋之间形成有散热风流道，散热风流道与出风口出风的流向一致。
  2. 根据权利要求1所述的一种新型带永磁无刷电机系统的蜗壳离心风机，其特征在于：所述固定筋个数为1至19个；所述固定筋宽度为1至10mm；所述定位孔个数为2至20个；所述定位孔宽度小于12mm。
  3. 根据权利要求1或2所述的一种新型带永磁无刷电机系统的蜗壳离心风机，其特征在于：所述散热筋组之间的间距宽度等于或大 于固定筋的宽度，散热筋组的自身宽度等于或小于定位孔的宽度；所述散热筋为桥拱式散热器与蜗板接触的表面向下凸出的同心圆的圆凸台，该同心圆的半径大于蜗壳成型后蜗板上安装有桥拱式散热器的位置的半径，散热筋于桥拱式散热器下表面处向下凸出，散热筋凸出高度为1至5mm。
  4. 根据权利要求1所述的一种新型带永磁无刷电机系统的蜗壳离心风机，其特征在于：所述桥拱式散热器通过密封胶或密封垫圈与蜗板表面进行密封装配。
  5. 根据权利要求1所述的一种新型带永磁无刷电机系统的蜗壳离心风机，其特征在于：所述桥拱式散热器面积大于开口面积。
  6. 根据权利要求1所述的一种新型带永磁无刷电机系统的蜗壳离心风机，其特征在于：所述蜗板前后两侧侧面延伸面、蜗板右侧相切面以及蜗板上侧侧面延伸面交汇形成一限制空间；所述驱动器位于限制空间内。
PCT/CN2017/073595 2016-09-28 2017-02-15 一种带永磁无刷电机系统的蜗壳离心风机 WO2017211093A1 (zh)

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EP3388683A1 (en) 2018-10-17
KR200489464Y1 (ko) 2019-06-21
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US20180231010A1 (en) 2018-08-16
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