WO2016117374A1 - 送風機 - Google Patents
送風機 Download PDFInfo
- Publication number
- WO2016117374A1 WO2016117374A1 PCT/JP2016/050384 JP2016050384W WO2016117374A1 WO 2016117374 A1 WO2016117374 A1 WO 2016117374A1 JP 2016050384 W JP2016050384 W JP 2016050384W WO 2016117374 A1 WO2016117374 A1 WO 2016117374A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- boss
- fan boss
- ribs
- rib
- Prior art date
Links
Images
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
- 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
-
- 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
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
-
- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- 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
Definitions
- the present disclosure relates to a blower that drives a fan with an outer rotor type electric motor.
- Patent Document 1 Conventionally, as this type of blower, for example, there is one described in Patent Document 1.
- the blower described in Patent Document 1 has a discharge port for discharging cooling air and a blower protrusion for generating an air flow in the outer rotor in order to introduce cooling air into the outer rotor and cool the motor. is doing.
- the discharge port and the air blowing protrusion are formed at the bottom of the bottomed cylindrical yoke. Further, the air blowing protrusion is formed by cutting and raising the discharge port portion at the bottom of the yoke at a substantially right angle.
- This indication aims at providing the air blower which can improve the cooling performance of an electric motor, controlling that the physique of an outer rotor type electric motor becomes large in the direction of an axis in view of the above-mentioned point.
- the blower is: A fan having a bottomed cylindrical fan boss and a plurality of blades provided on the outside of the fan boss, and rotating about a fan axis; An outer rotor including a bottomed cylindrical bottomed rotor member that is disposed inside the fan boss and rotates integrally with the fan boss, and a stator that is a non-rotating member disposed inside the bottomed rotor member An electric motor,
- the bottomed rotor member has a rotor member bottom portion constituting the bottom portion of the bottomed rotor member, and an opening hole penetrating in the axial direction of the fan shaft center is formed in the rotor member bottom portion,
- the fan boss is laminated in the axial direction with respect to the rotor member bottom, and forms a bottom portion of the fan boss, and the fan boss from the bottom of the fan boss at a position overlapping the opening in the axial direction of the fan boss bottom. It has a bottomed cylindrical fan boss and a plurality of blades
- the fan boss has a bottom rib that promotes air being discharged from the inside of the bottomed rotor member through the opening hole as the fan rotates.
- the bottom rib protrudes from the fan boss bottom to the rotor member bottom at a position overlapping the opening in the axial direction of the fan boss bottom. Therefore, the protruding height of the bottom rib can be increased by utilizing the thickness of the rotor member bottom. Therefore, as compared with a configuration in which a blowing projection corresponding to a bottom rib is provided on a yoke corresponding to a bottomed rotor member as in the blower of Patent Document 1, the physique of the motor is prevented from increasing in the axial direction. However, it is possible to improve the cooling performance of the electric motor.
- FIG. 4 is a view as seen from the IV direction in FIG. 3 and shows only the yoke and fan boss extracted. It is the perspective sectional view which extracted only the yoke and the fan boss in the 1st embodiment, and illustrated the section.
- FIG. 4 is a diagram showing a single fan boss viewed from the IV direction in FIG. 3 in the first embodiment.
- FIG. 7 is a diagram showing a single fan boss viewed from the IV direction in FIG. 3 in the second embodiment, and corresponds to FIG. 6 of the first embodiment.
- FIG. 1 is a front view of the blower 8 according to the present embodiment as viewed from the air suction side.
- FIG. 2 is a rear view of the blower 8 as viewed from the opposite side to FIG.
- the blower 8 shown in FIGS. 1 and 2 is an axial flow type in which air sucked from one of the fan shaft centers CLf (see FIG. 3), which is the rotation center of the fan 20 included in the blower 8, is blown to the other of the fan shaft centers CLf. It is a blower.
- FIG. 3 is a diagram showing the internal structure of the blower 8, and is a cross-sectional view taken along the line III-III in FIG. As shown in FIGS. 1 and 3, the fan 8 blows along the fan axis CLf as indicated by an arrow FLf when the fan 20 rotates in the fan rotation direction DRf around the fan axis CLf.
- the blower 8 includes an outer rotor type electric motor 10, a fan 20 that is rotationally driven by the electric motor 10 to generate an air flow, a fan shroud 30 that surrounds the fan 20 and guides air flow, and energization of the electric motor 10. And a drive unit 40 for controlling the motor.
- the electric motor 10 includes a housing 11, a shaft 12, an outer rotor 14, and a stator 15.
- the housing 11 is a non-rotating member fixed to the fan shroud 30.
- a cylindrical shaft 12 having a fan shaft center CLf as a central axis is fixed to the housing 11.
- the outer rotor 14 is composed of a metal yoke 141 and a permanent magnet 142.
- the yoke 141 is a metal bottomed rotor member having a bottomed cylindrical shape.
- the yoke 141 is connected to the shaft 12 via a bearing and is rotatable about the fan axis CLf with respect to the shaft 12.
- the yoke 141 has a yoke bottom portion 141a as a rotor member bottom portion constituting the bottom portion of the yoke 141, and a cylindrical yoke tubular portion 141b having a fan shaft center CLf as a central axis.
- the yoke cylindrical portion 141b is connected to the yoke bottom portion 141a at one end 141d of the yoke cylindrical portion 141b.
- a permanent magnet 142 is fixed to the inner peripheral side of the yoke tubular portion 141b.
- FIG. 4 is a view as seen from the IV direction in FIG. 3, and is a view in which only the yoke 141 and the fan boss 21 included in the fan 20 are extracted and displayed.
- the plurality of opening holes 141c formed in the yoke bottom portion 141a are arranged at equal intervals along the circumferential direction of the fan, which is the circumferential direction around the fan axis CLf, and are cooling holes for flowing air for cooling the electric motor 10. Function as.
- the stator 15 includes a coil 152 wound around an iron core, and is disposed inside the outer rotor 14.
- the stator 15 is a non-rotating member fixed to the housing 11.
- the coil 152 of the stator 15 is energized from the drive unit 40 and its voltage is controlled by the drive unit 40.
- the fan 20 is an axial flow fan, and includes a fan boss 21 and a plurality of resin blades 22.
- the fan boss 21 is formed in a bottomed cylindrical shape, and the plurality of blades 22 are provided outside the fan boss 21.
- each of the plurality of blades 22 is disposed on the outer peripheral side of the fan boss 21 and is formed so as to extend outward from the fan boss 21 in the radial direction.
- the blades 22 are arranged at equal intervals along the circumferential direction of the fan.
- the fan boss 21 and the blade 22 are integrally formed.
- the fan boss 21 has a fan boss bottom portion 211 that constitutes a bottom portion of the fan boss 21, and a cylindrical fan boss tubular portion 212 having a fan shaft center CLf as a central axis. ing.
- the fan boss tubular portion 212 is connected to the fan boss bottom portion 211 at one end 212 c of the fan boss tubular portion 212.
- the fan boss bottom portion 211 includes an insert member 211a that is a metal plate, and a resin-made outer peripheral resin portion 211b disposed on the outer periphery of the insert member 211a. And the insert member 211a and the outer periphery resin part 211b are united by insert molding.
- the fan boss cylindrical portion 212 is provided on the outer side in the radial direction of the yoke 141.
- the yoke 141 is disposed inside the fan boss 21.
- the fan boss bottom 211 is stacked on the yoke bottom 141a in the fan axial direction, and is fixed to the yoke bottom 141a by screws or the like.
- the outer rotor 14 including the yoke 141 rotates integrally with the fan 20 including the fan boss 21 around the fan axis CLf.
- the fan boss 21 includes a plurality of bottom ribs 213 protruding from the fan boss bottom 211 toward the yoke bottom 141 a.
- FIG. 5 is a perspective sectional view showing only the yoke 141 and the fan boss 21 in an extracted manner.
- the bottom ribs 213 of the fan bosses 21 are respectively arranged at positions overlapping with the opening holes 141c of the yoke bottom portion 141a in the fan boss bottom portion 211 in the fan axial direction.
- the bottom rib 213 promotes the discharge of air from the inside of the yoke 141 through the opening hole 141c as the fan 20 rotates.
- the air flow is as shown by a broken line arrow FLa in FIG.
- a part of the air sent out by the blades 22 enters the yoke 141 from the side opposite to the yoke bottom 141a side of the yoke 141 of the outer rotor 14 in the fan axial direction. Inflow. Then, the air in the yoke 141 flows through the opening hole 141c (see FIG. 4) into the axial gap between the yoke bottom portion 141a and the fan boss bottom portion 211. Further, the air flowing into the axial gap passes through the axial gap, passes through the radial gap formed between the yoke cylindrical portion 141b and the fan boss cylindrical portion 212, and goes to the outside of the fan boss 21. leak.
- each of the bottom ribs 213 of the fan boss 21 is arranged such that at least a part of the bottom rib 213, for example, the tip 213b of the bottom rib 213 is inserted into the opening hole 141c of the yoke bottom 141a. Is formed.
- the bottom rib 213 is formed so as not to protrude from the opening hole 141c toward the stator 15 (see FIG. 3) in the fan axial direction.
- the fan boss bottom portion 211 has a rib connecting portion 211c to which the base end 213a of the bottom rib 213 is connected at a position overlapping the opening hole 141c of the yoke bottom portion 141a in the fan boss bottom portion 211 in the fan axial direction.
- the rib connection part 211c is arrange
- the rib connecting portion 211c is disposed so as to form an axial gap with respect to the yoke bottom portion 141a. Therefore, the height of the bottom rib 213 from the rib connecting portion 211c in the fan axial direction is equal to or less than the total width of the axial gap and the axial thickness of the yoke bottom 141a around the opening hole 141c.
- the plurality of bottom ribs 213 of the fan boss 21 are provided side by side in the fan circumferential direction as shown in FIG.
- the plurality of bottom ribs 213 form a first air flow path 211d between the bottom ribs 213, and the first air flow path 211d extends from the inside in the radial direction of the fan shaft center CLf to the outside. It is formed to extend.
- the first air flow path 211d guides the air discharged from the opening 141c of the yoke bottom 141a to the outside of the yoke 141 to the outside in the radial direction of the fan shaft center CLf (see FIG. 3).
- the fan boss cylindrical portion 212 of the fan boss 21 is disposed on the radially outer side of the yoke cylindrical portion 141b with the above radial gap.
- hub 21 has the some cylindrical part rib 214 which protruded from the fan boss cylindrical part 212 to the inner side of the fan boss cylindrical part 212 using the radial direction clearance gap.
- the tubular portion rib 214 is an outer peripheral rib provided on the outer peripheral side of the bottom 213 in the fan boss 21.
- each of the tubular portion ribs 214 is provided on the inside of the fan boss 21 to the outside of the bottom rib 213 in the radial direction of the fan axis CLf. Is extended on the fan boss bottom 211 from the inner peripheral surface 212a. 6 is a diagram in which the yoke 141 is removed from FIG. 4, that is, a diagram showing the fan boss 21 alone as viewed from the IV direction in FIG. In the following description, the radial direction of the fan shaft center CLf is also referred to as the fan radial direction.
- the cylindrical portion rib 214 of the fan boss 21 is provided side by side in the fan circumferential direction.
- the plurality of tubular ribs 214 form a second air flow path 212b between the tubular ribs 214, and the second air flow path 212b is formed on the fan boss tubular section 212. It is formed to extend in the fan axial direction on the inner peripheral surface 212a. That is, the second air passage 212b guides air from the one end 212c side of the fan boss cylindrical portion 212 that is the fan boss bottom 211 side in the fan axial direction to the other end 212d that is the opposite side. ing.
- the upstream end of the second air passage 212b is on the one end 212c side of the fan boss tubular portion 212, and the downstream end of the second air passage 212b is on the other end 212d side of the fan boss tubular portion 212.
- the cylindrical part rib 214 is extended on the fan boss bottom part 211 in the 2nd air flow path 212b, in connection with it, on the fan boss bottom part 211 in the upstream of the 2nd air flow path 212b. It is extended. Therefore, as indicated by point hatching in FIG. 6, the plurality of first air flow paths 211d are formed so as to be continuous with any one of the plurality of second air flow paths 212b. In other words, the plurality of bottom ribs 213 are formed so that the air flow flowing out from the first air flow path 211d continuously extends into the second air flow path 212b.
- each of the plurality of bottom ribs 213 is connected to one of the plurality of cylindrical portion ribs 214 at the outer peripheral end of the bottom rib 213.
- each of the plurality of first air flow paths 211d is connected in series with any one of the plurality of second air flow paths 212b.
- the dot hatching in FIG. 6 is an excerpt of one of the connections between the plurality of first air flow paths 211d and second air flow paths 212b.
- the bottom rib 213 and the cylindrical rib 214 function like a fan blade of a centrifugal fan, and generate an air flow from the inside in the fan radial direction to the outside in the first and second air flow paths 211d and 212b. It is formed as follows. Specifically, the bottom ribs 213 are curved in the same direction in the circumferential direction of the fan.
- each of the plurality of tubular portion ribs 214 is inclined with respect to the fan radial direction so as to be shifted to the opposite side to the fan rotation direction DRf toward the radially outer side of the fan shaft center CLf.
- the plurality of bottom ribs 213 are also inclined with respect to the fan radial direction so as to be shifted to the opposite side to the fan rotation direction DRf toward the radially outer side of the fan axis CLf.
- the bottom rib 213 and the cylindrical rib 214 are provided on the inner side of the fan boss 21 and play the role of a centrifugal fan as the fan 20 rotates. Therefore, the bottom rib 213 and the cylindrical rib 214 are such that the air in the yoke 141 of the electric motor 10 (see FIG. 3) flows out of the yoke 141 through the opening hole 141c (see FIG. 4) as indicated by the broken arrow FLa in FIG. To promote. That is, the bottom rib 213 and the cylindrical rib 214 promote cooling of the electric motor 10 by the air flowing through the yoke 141.
- the fan boss 21 has the bottom rib 213 that promotes the discharge of air from the inside of the yoke 141 through the opening hole 141c as the fan 20 rotates.
- the bottom rib 213 protrudes from the fan boss bottom 211 toward the yoke bottom 141a at a position overlapping the opening 141c of the yoke bottom 141a in the fan boss bottom 211 in the fan axial direction. Therefore, the protruding height of the bottom rib 213 can be increased by using the thickness of the yoke bottom 141a.
- the protruding height of the bottom rib 213 is within a range where the bottom rib 213 provided inside the fan boss 21 does not interfere with a non-rotating member such as the stator 15 provided inside the outer rotor 14 of the electric motor 10. It can be increased. Further, in the present embodiment, it was confirmed that by providing the bottom rib 213, the amount of air flowing between the cylindrical ribs 214 is increased by about 9% compared to the comparative example without the bottom rib 213.
- the bottom rib 213 of the fan boss 21 is formed so that at least a part of the bottom rib 213 is inserted into the opening hole 141c of the yoke bottom 141a. Accordingly, it is possible to increase the protruding height of the bottom rib 213 and improve the cooling performance of the electric motor 10 as compared with the configuration in which the bottom rib 213 is not inserted into the opening hole 141c. Further, when the fan 20 is attached to the yoke 141, the bottom rib 213 can be used for positioning the fan 20 with respect to the yoke 141, and the assembling property of the fan 20 with respect to the yoke 141 can be improved. is there.
- the bottom rib 213 is formed so as not to protrude from the opening hole 141c of the yoke bottom portion 141a to the stator 15 side. Therefore, when the fan 20 rotates, it is possible to prevent interference between the bottom rib 213 and the non-rotating member provided in the yoke 141. And it is possible to avoid that the physique of the electric motor 10 becomes large in the fan axial direction due to the installation of the bottom rib 213.
- the rib connecting portion 211c which is a part of the fan boss bottom portion 211 and is connected to the base end 213a of the bottom rib 213, is disposed with a space in the fan axial direction with respect to the yoke bottom portion 141a. Has been. Therefore, the protruding height of the bottom rib 213 can be increased by the interval in the fan axial direction, and thereby the cooling performance of the electric motor 10 can be improved.
- the plurality of bottom ribs 213 provide the first air flow path 211d that guides the air discharged from the opening hole 141c of the yoke bottom 141a to the outside in the radial direction of the fan shaft center CLf. They are formed between each other. Therefore, the air flowing out from the opening hole 141c is smoothly guided to the outside in the radial direction of the fan shaft center CLf, so that the air in the yoke 141 can be promoted to flow out from the opening hole 141c.
- the plurality of bottom ribs 213 allows the air flow flowing out from the first air flow path 211d to guide the air from the one end 212c side of the fan boss cylindrical portion 212 to the other end 212d side. It is formed so as to continuously extend into the two air flow paths 212b. Therefore, the air flowing through the first air flow path 211d is smoothly led out of the fan boss 21 through the second air flow path 212b. As a result, it is possible to promote the outflow of air in the yoke 141 from the opening hole 141c.
- each of the plurality of tubular ribs 214 is inclined with respect to the fan radial direction so that the radially outer side of the fan shaft center CLf is shifted to the opposite side to the fan rotation direction DRf.
- Each of the plurality of bottom ribs 213 is also inclined with respect to the fan radial direction so as to be shifted to the opposite side to the fan rotation direction DRf toward the radial outer side of the fan shaft center CLf. Accordingly, the bottom rib 213 and the cylindrical rib 214 function like a fan blade of a turbo fan. Therefore, it is possible to promote the air in the yoke 141 flowing out from the opening hole 141c.
- the bottom rib 213 that promotes cooling of the electric motor 10 is a part of the fan boss 21. Therefore, it is not necessary to separately provide a member that promotes cooling of the electric motor 10, and the structure of the blower 8 can be simplified.
- FIG. 7 is a diagram showing the single unit of the fan boss 21 of this embodiment viewed from the IV direction in FIG. 3, and corresponds to FIG. 6 of the first embodiment.
- the bottom rib 213 and the cylindrical rib 214 of the first embodiment are inclined with respect to the fan radial direction like the fan blades of a turbofan, but as shown in FIG.
- the bottom rib 213 and the cylindrical rib 214 of this embodiment are inclined with respect to the fan radial direction like a fan blade of a sirocco fan.
- each of the plurality of cylindrical ribs 214 is inclined with respect to the fan radial direction so as to be shifted in the fan rotation direction DRf toward the radial outer side of the fan shaft center CLf.
- the plurality of bottom ribs 213 are also inclined with respect to the fan radial direction so as to be shifted in the fan rotation direction DRf toward the radial outer side of the fan shaft center CLf.
- the bottom rib 213 and the cylindrical rib 214 are thus provided, the bottom rib 213 and the cylindrical rib 214 function like a fan blade of a sirocco fan. Therefore, it is possible to promote the air in the yoke 141 flowing out from the opening hole 141c.
- the fan 20 includes a metal insert member 211a and is formed of a resin material and a metal material by insert molding.
- the fan 20 may be formed of only resin by injection molding other than insert molding.
- the bottom rib 213 of the fan boss 21 is formed so as not to protrude in the fan axial direction from the opening hole 141c of the yoke bottom 141a toward the stator 15 side.
- the plurality of bottom ribs 213 of the fan boss 21 are connected to any one of the plurality of cylindrical ribs 214.
- the bottom rib 213 is provided so as to protrude from the fan boss bottom 211. Specifically, as shown in FIG. 5, the bottom rib 213 is provided on the outer peripheral resin portion 211b included in the fan boss bottom 211. ing. However, this is only an example, and the bottom rib 213 may be provided on the insert member 211 a included in the fan boss bottom 211.
- the fan 20 is an axial flow fan.
- the fan 20 may not be an axial flow type.
- the fan 20 may be a centrifugal fan or a mixed flow fan.
Landscapes
- 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
Description
有底筒状のファンボスとそのファンボスの外側に設けられた複数の羽根とを有し、ファン軸心を中心として回転するファンと、
ファンボスの内側に配置されそのファンボスと一体的に回転する有底筒状の有底ロータ部材を含むアウターロータ、および、有底ロータ部材の内側に配置された非回転部材であるステータから構成された電動機とを備え、
有底ロータ部材は、その有底ロータ部材の底部分を構成するロータ部材底部を有し、そのロータ部材底部には、ファン軸心の軸方向に貫通した開口孔が形成され、
ファンボスは、ロータ部材底部に対して軸方向に積層配置されファンボスの底部分を構成するファンボス底部と、そのファンボス底部のうち開口孔に対し軸方向に重なる位置にてファンボス底部からロータ部材底部側へ突き出ており、空気がファンの回転に伴い有底ロータ部材の内側から開口孔を通じて排出されることを促進する底部リブとを有している。
図1は、本実施形態における送風機8を空気吸込側から見た正面図である。図2は、図1とは反対側から送風機8を見た背面図である。図1および図2に示す送風機8は、送風機8が有するファン20の回転中心であるファン軸心CLf(図3参照)の一方から吸入した空気をファン軸心CLfの他方へと吹き出す軸流式送風装置である。
次に、第2実施形態について説明する。本実施形態では、前述の第1実施形態と異なる点を主として説明し、第1実施形態と同一または均等な部分については省略または簡略化して説明する。
(1)上述の各実施形態において、ファン20は、金属製のインサート部材211aを含みインサート成形により樹脂材と金属材とから構成されている。しかしながら、これは一例であり、ファン20は、インサート成形ではない射出成形によって樹脂のみで成形されていても差し支えない。
Claims (9)
- 送風機であって、
有底筒状のファンボス(21)と該ファンボスの外側に設けられた複数の羽根(22)とを有し、ファン軸心(CLf)を中心として回転するファン(20)と、
前記ファンボスの内側に配置され該ファンボスと一体的に回転する有底筒状の有底ロータ部材(141)を含むアウターロータ(14)、および、前記有底ロータ部材の内側に配置された非回転部材であるステータ(15)から構成された電動機(10)とを備え、
前記有底ロータ部材は、該有底ロータ部材の底部分を構成するロータ部材底部(141a)を有し、該ロータ部材底部には、前記ファン軸心の軸方向に貫通した開口孔(141c)が形成され、
前記ファンボスは、前記ロータ部材底部に対して前記軸方向に積層配置され前記ファンボスの底部分を構成するファンボス底部(211)と、該ファンボス底部のうち前記開口孔に対し前記軸方向に重なる位置にて前記ファンボス底部から前記ロータ部材底部側へ突き出ており、空気が前記ファンの回転に伴い前記有底ロータ部材の内側から前記開口孔を通じて排出されることを促進する底部リブ(213)とを有している送風機。 - 前記底部リブは、該底部リブの少なくとも一部が前記開口孔内に挿入されるように形成されている請求項1に記載の送風機。
- 前記底部リブは、前記開口孔から前記ステータ側へ突き出ないように形成されている請求項1または2に記載の送風機。
- 前記ファンボス底部は、該ファンボス底部のうち前記開口孔に対し前記軸方向に重なる位置に、前記底部リブの基端(213a)が連結するリブ連結部(211c)を有し、
前記リブ連結部は、前記ロータ部材底部に対し前記軸方向へ間隔を空けて配置されている請求項1ないし3のいずれか1つに記載の送風機。 - 前記底部リブは、前記ファン軸心まわりの周方向に並んで複数設けられており、
該複数の底部リブは、前記開口孔から排出された前記空気を前記ファン軸心の径方向外側へ導く空気流路(211d)を前記底部リブの相互間に形成している請求項1ないし4のいずれか1つに記載の送風機。 - 前記空気流路は第1空気流路であり、
前記ファンボスは、前記有底ロータ部材の径方向外側に設けられた筒状のファンボス筒状部(212)と、該ファンボス筒状部から該ファンボス筒状部の内側へ突き出た複数の筒状部リブ(214)とを有し、
前記ファンボス筒状部は、該ファンボス筒状部の一端(212c)にて前記ファンボス底部に連結し、
前記複数の筒状部リブは、前記周方向へ並んで配置され、前記ファンボス筒状部の前記一端側から他端側へと前記空気を導く第2空気流路(212b)を前記筒状部リブの相互間に形成し、
前記複数の底部リブは、前記第1空気流路から流出する空気流れが前記第2空気流路内へと連続的に延びるように形成されている請求項5に記載の送風機。 - 前記空気流路は第1空気流路であり、
前記ファンボスは、前記有底ロータ部材の径方向外側に設けられた筒状のファンボス筒状部(212)と、該ファンボス筒状部から該ファンボス筒状部の内側へ突き出た複数の筒状部リブ(214)とを有し、
前記ファンボス筒状部は、該ファンボス筒状部の一端(212c)にて前記ファンボス底部に連結し、
前記複数の筒状部リブは、前記周方向へ並んで配置され、前記ファンボス筒状部の前記一端側から他端側へと前記空気を導く第2空気流路(212b)を前記筒状部リブの相互間に形成し、
前記複数の底部リブはそれぞれ、前記複数の筒状部リブのうちの何れかに接続しており、
前記第1空気流路は前記第2空気流路と直列的に接続されている請求項5に記載の送風機。 - 前記複数の筒状部リブは各々、前記ファン軸心の径方向外側ほど前記ファンの回転方向に対する反対側へずれるように前記ファン軸心の径方向に対して傾いており、
前記複数の底部リブは各々、前記ファン軸心の径方向外側ほど前記ファンの回転方向に対する反対側へずれるように前記ファン軸心の径方向に対して傾いている請求項6または7に記載の送風機。 - 前記複数の筒状部リブは各々、前記ファン軸心の径方向外側ほど前記ファンの回転方向へずれるように前記ファン軸心の径方向に対して傾いており、
前記複数の底部リブは各々、前記ファン軸心の径方向外側ほど前記ファンの回転方向へずれるように前記ファン軸心の径方向に対して傾いている請求項6または7に記載の送風機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016570563A JPWO2016117374A1 (ja) | 2015-01-19 | 2016-01-07 | 送風機 |
US15/539,060 US20170350411A1 (en) | 2015-01-19 | 2016-01-07 | Air blower |
CN201680006098.9A CN107110179A (zh) | 2015-01-19 | 2016-01-07 | 送风机 |
DE112016000376.5T DE112016000376T5 (de) | 2015-01-19 | 2016-01-07 | Luftgebläse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015007923 | 2015-01-19 | ||
JP2015-007923 | 2015-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016117374A1 true WO2016117374A1 (ja) | 2016-07-28 |
Family
ID=56416922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/050384 WO2016117374A1 (ja) | 2015-01-19 | 2016-01-07 | 送風機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170350411A1 (ja) |
JP (1) | JPWO2016117374A1 (ja) |
CN (1) | CN107110179A (ja) |
DE (1) | DE112016000376T5 (ja) |
WO (1) | WO2016117374A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019121450A1 (de) * | 2019-08-08 | 2021-02-11 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Axialventilator mit Bypasskanal im Elektronikgehäuse |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108725769A (zh) * | 2017-04-19 | 2018-11-02 | 深圳市道通智能航空技术有限公司 | 一种电机散热件、电机及飞行器 |
CN107588043A (zh) * | 2017-10-20 | 2018-01-16 | 东风博泽汽车系统有限公司 | 一种电机风扇散热轮毂结构及其所构成的冷却风扇 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0286997A (ja) * | 1988-09-22 | 1990-03-27 | Mitsubishi Electric Corp | 送風機 |
EP1050682A2 (en) * | 1999-05-07 | 2000-11-08 | GATE S.p.A. | A motor-driven fan, particularly for a motor vehicle heat exchanger |
US7042121B2 (en) * | 2004-07-30 | 2006-05-09 | Siemens Aktiengesellschaft | Cooling fan with electric motor |
JP4291846B2 (ja) * | 2006-11-24 | 2009-07-08 | アスモ株式会社 | ファンモータ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012110130A (ja) * | 2010-11-17 | 2012-06-07 | Mitsuba Corp | ブラシレスモータ |
-
2016
- 2016-01-07 CN CN201680006098.9A patent/CN107110179A/zh active Pending
- 2016-01-07 WO PCT/JP2016/050384 patent/WO2016117374A1/ja active Application Filing
- 2016-01-07 DE DE112016000376.5T patent/DE112016000376T5/de not_active Withdrawn
- 2016-01-07 US US15/539,060 patent/US20170350411A1/en not_active Abandoned
- 2016-01-07 JP JP2016570563A patent/JPWO2016117374A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0286997A (ja) * | 1988-09-22 | 1990-03-27 | Mitsubishi Electric Corp | 送風機 |
EP1050682A2 (en) * | 1999-05-07 | 2000-11-08 | GATE S.p.A. | A motor-driven fan, particularly for a motor vehicle heat exchanger |
US7042121B2 (en) * | 2004-07-30 | 2006-05-09 | Siemens Aktiengesellschaft | Cooling fan with electric motor |
JP4291846B2 (ja) * | 2006-11-24 | 2009-07-08 | アスモ株式会社 | ファンモータ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019121450A1 (de) * | 2019-08-08 | 2021-02-11 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Axialventilator mit Bypasskanal im Elektronikgehäuse |
Also Published As
Publication number | Publication date |
---|---|
US20170350411A1 (en) | 2017-12-07 |
DE112016000376T5 (de) | 2017-09-28 |
CN107110179A (zh) | 2017-08-29 |
JPWO2016117374A1 (ja) | 2017-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6493620B2 (ja) | 遠心送風機 | |
CN103650294B (zh) | 具有转子内部通风装置的电机 | |
KR20140020329A (ko) | 냉각팬 모듈 | |
US12006947B2 (en) | Diagonal fan with outlet guide vane device | |
JP2015017564A (ja) | 送風機 | |
JP2009108792A (ja) | ファン装置 | |
WO2015125485A1 (ja) | 送風装置 | |
WO2016117374A1 (ja) | 送風機 | |
US20180328376A1 (en) | Turbofan and method of manufacturing turbofan | |
JP2020020320A (ja) | インペラ、遠心ファン | |
JP2010124534A (ja) | 電動機用斜流ファンと該斜流ファンを備えた電動機 | |
JP6131770B2 (ja) | 送風機 | |
WO2018180060A1 (ja) | 遠心送風機 | |
WO2016181821A1 (ja) | 遠心式送風機 | |
JP6687050B2 (ja) | 遠心送風機 | |
JP2015025425A (ja) | 軸流ファン | |
JP6469815B2 (ja) | 軸流ファン | |
JP2017106455A (ja) | 冷却ファン組立体 | |
JP6421610B2 (ja) | 送風機 | |
WO2018016198A1 (ja) | 遠心式送風機 | |
JP6276169B2 (ja) | 遠心ファン | |
JP6551287B2 (ja) | ファン装置 | |
JP2019090342A (ja) | ブロワ装置 | |
CN216216374U (zh) | 电机及电器 | |
WO2018221062A1 (ja) | 遠心送風機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16739981 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016570563 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15539060 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112016000376 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16739981 Country of ref document: EP Kind code of ref document: A1 |