CN105090068B - Fan - Google Patents
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- CN105090068B CN105090068B CN201410197971.XA CN201410197971A CN105090068B CN 105090068 B CN105090068 B CN 105090068B CN 201410197971 A CN201410197971 A CN 201410197971A CN 105090068 B CN105090068 B CN 105090068B
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- wheel hub
- circuit board
- flabellum
- bearing seat
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Abstract
A kind of fan, including a motor, an impeller and a radiator structure.Motor includes a stator magnet group, a load bearing seat, a first circuit board and a protection lid.Load bearing seat carries stator magnet group.Load bearing seat forms one first accommodation space with stator magnet group.First circuit board is arranged at the first accommodation space.Protect lid covering first circuit board.Impeller includes a wheel hub and multiple first flabellums.Wheel hub is to accommodating motor.Wheel hub has an at least heat emission hole.First flabellum is arranged at around wheel hub.Radiator structure is arranged at the outside of wheel hub, and has a baffle plate and at least one second flabellum.Second flabellum extends from baffle plate, and the position correspondence of the second flabellum is in heat emission hole.
Description
Technical field
The present invention relates to a kind of fan, more particularly to a kind of fan with radiator structure.
Background technology
In the framework of general fan, impeller is arranged at motor, and as the power required for motor provides wheel rotation, with
Impeller rotates, and then provides enough air quantity in heater element, the effect of to reach radiating, therefore fan design and system at present
Industry industry personnel is made, the fan of higher air quantity can be provided by being directed to design.It is to improve to make one of method of the high air quantity of fan offer
Rotation speed of the fan, however, in the design of fan, rotating speed can not possibly be improved infinitely.Because fan, in high rotating speed, its blade will be held
High pressure is carried on a shoulder pole, now blade can cause to deform, or even be broken and produce greatly dangerous.
In addition, under high rotating speed, mechanism and the bearing of motor will also bear higher burden, the threat to device longevity
Greatly.By motor is coated by impeller so that caused heat energy in itself during motor running, can not by the barrier of impeller
Smoothly exclude, this situation not only results in the damage of motor bearing, and causes the life time decay of motor in itself, can also increase and is
Temperature in system, in turn result in the overall life time decay of fan.
Furthermore some fans for producing high blast, such as centrifugal fan, often it is applied to the radiating dress of complication system
In putting, such as communication cabinet, the heat abstractor of frequency converter cabinet system.But the heat abstractor of such system can all produce about 70
DEG C environment temperature, and under 70 DEG C of environment temperature continuous running motor, the temperature of itself may be up to 100 DEG C, such a
The life-span of motor bearing can be greatly reduced in high temperature.
The content of the invention
The present invention provides a kind of fan, and it has the radiator structure for motor, when making fan running, can effectively remove
Caused used heat during motor running, motor is set to be operated at rational temperature, to lift motor in itself and fan is overall
Service life and security.
For the above-mentioned purpose, a kind of fan according to the present invention includes a motor, an impeller and a radiator structure.Motor
Including a stator magnet group, a load bearing seat, a first circuit board and a protection lid.Load bearing seat carries stator magnet group.Load bearing seat with
Stator magnet group forms one first accommodation space.First circuit board is arranged at accommodation space.Protect lid covering first circuit board.Leaf
Wheel includes a wheel hub and multiple first flabellums.Wheel hub is to accommodating motor.Wheel hub has an at least heat emission hole.First flabellum is set
Around wheel hub.Radiator structure is arranged at the outside of wheel hub, and has a baffle plate and at least one second flabellum.Second flabellum is certainly
Baffle plate extends, and the position correspondence of the second flabellum is in heat emission hole.
In one embodiment, there is wheel hub an at least groove to extend from heat emission hole.Second flabellum is sticked in groove.
In one embodiment, the second flabellum part is arranged at groove, is partly suspended on heat emission hole.
In one embodiment, the structure of groove corresponds to the part-structure of the second flabellum root edge.
In one embodiment, wheel hub has at least one first fixed part, and radiator structure has at least one second fixed part.The
One fixed part is interconnected with the second fixed part.First fixed part phase in a manner of screw lock, riveting or welding with the second fixed part
Mutually link.
In one embodiment, the first flabellum and the second flabellum include airfoil fan.The aerofoil profile of first flabellum and the second flabellum
Curvature direction is identical.
In one embodiment, impeller also has two loop configuration.The multiple first flabellum is located in two ring junctions
Between structure, one of two loop configuration link with wheel hub.
In one embodiment, one of two loop configuration have multiple screws, and with wheel hub in a manner of screw lock
Link.
In one embodiment, the loop configuration linked with wheel hub has an inclined-plane.
In one embodiment, wheel hub has an axle center and an iron-clad.Axle center is shaped in iron-clad in a manner of die casting
The body of wheel hub.
In one embodiment, wheel hub includes a light metal or aluminium material.
In one embodiment, fan also includes a pedestal, and motor is arranged on pedestal, and the load bearing seat and pedestal of motor
One second accommodation space is collectively forming, to house a second circuit board.
In one embodiment, load bearing seat has an at least connecting hole.First circuit board passes through connecting hole with second circuit board
It is electrically connected with.
In one embodiment, second circuit board is the circuit board that power supply is supplied in a connection, to provide first circuit board driving
With voltage.
In one embodiment, load bearing seat has a heat conduction projection, and it extends from load bearing seat towards the surface of second circuit board,
And the second circuit board of abutment portion.
In one embodiment, protect between lid and load bearing seat and be provided with marine glue or silica gel.
In one embodiment, protecting lid, it is equipped with an electronic component with least one perforation.
In one embodiment, it is provided with waterproof between perforation and electronic component or at the perforation of protection cap and circuit board
Glue.
In one embodiment, electronic component includes Hall sensor, hot fuse or wire.
In one embodiment, protection lid has a limiting section.First circuit board has a positioning of corresponding limiting section recessed
Groove, to ensure that detent is corresponding to limiting section.
In one embodiment, lid is protected to link with load bearing seat by an at least retaining element.
In one embodiment, when with multiple retaining elements, the fixed position of the multiple retaining element is asymmetry
Design.
In one embodiment, load bearing seat or pedestal have a radiating fin.
In one embodiment, load bearing seat has a central siphon and a ringwall.Ringwall ring is set around central siphon.Stator magnet group is sheathed on
On central siphon.Central siphon has a stop section, and when stator magnet assembling is located at central siphon, stator magnet group is maintained at fixation height by stop section
Degree.
In one embodiment, load bearing seat is made up of copper, iron, aluminium or the high metal of thermal conductivity factor.
In one embodiment, protection lid is made up of insulating materials.
From the above, the wheel hub of fan of the invention has heat emission hole, and radiator structure is arranged at setting on the outside of wheel hub
Meter, when making motor drive hub rotation, while radiator structure and its interior flabellum is driven to rotate, and in the region of wheel hub and motor
Convection effect is produced, to produce the second air-flow, used heat caused by motor is discharged from heat emission hole, reach makes motor whereby
Coil is able to the effect to radiate, while can reduce the temperature of bearing, to lift the service life of motor and its bearing.
Air inside motor flows out via the guiding of the second air-flow and from heat emission hole, and is flowed to by the rotation of impeller
Surrounding, therefore compared to existing fan, the generation of stagnant area and turbulent flow can be reduced, the generation of noise can be reduced.And by interior flabellum
The disturbance that caused second air-flow belongs to inside fan, its increased limited power consumption of institute, the setting of radiator structure can't be right
Fan characteristic in itself and power consumption have extra loss.
In addition, the setting of heat emission hole can mitigate wheel hub except that can exclude used heat caused by motor, the also construction because of its perforate
Overall weight.
In addition, the blade of interior flabellum is if airfoil fan, and interior flabellum is identical with the aerofoil profile curvature direction of outer flabellum, in outer
When flabellum rotates, interior flabellum and outer flabellum are equidirectional rotation, and then produce reverse flow field, i.e. the second gas in radiating bore region
Stream, and used heat caused by the motor being arranged on the inside of wheel hub can be taken out, to lift the effect of motor radiating.
On the other hand, protect between lid and load bearing seat and protection cap is with can be set marine glue at circuit board perforation, make
When fan is in moist use environment, aqueous vapor can be avoided to enter the life-span for influenceing circuit board.
Brief description of the drawings
Figure 1A is a kind of exploded perspective top view of the fan of present pre-ferred embodiments.
Figure 1B is the profile of the fan shown in Figure 1A.
Fig. 2 is the enlarged drawing of the wheel hub and radiator structure shown in Figure 1A.
Fig. 3 is the magnified partial view of the fan shown in Figure 1B.
Fig. 4 is the air current flow direction schematic diagram of another section of fan shown in Figure 1B.
Fig. 5 is the stereogram of the wheel hub and radiation structure combination shown in Fig. 2.
Fig. 6 A are the exploded perspective upward view of the fan shown in Figure 1A.
Fig. 6 B are the exploded perspective figure of the load bearing seat and cover sheet shown in Fig. 6 A.
Fig. 6 C are the schematic diagram after the assembling of element shown in Fig. 6 B.
Wherein, description of reference numerals is as follows：
1 motor
11 bearings
12 stator magnet groups
121 polar arms
13 load bearing seats
131 central siphons
1311 stop sections
132 ringwalls
133 first accommodation spaces
134 radiating fins
135 heat conduction projections
14 first circuit boards
141 detents
15 protection lids
151 perforation
2 impellers
21 wheel hubs
211 tops
212 side walls
213 linking parts
214 heat emission holes
215 grooves
216 first fixed parts
217 axle center
218 iron-clads
219 bodies
22 outer flabellums
23 loop configuration
The upper loop configuration of 23a
Loop configuration under 23b
3 radiator structures
31 baffle plates
Flabellum in 32
33 second fixed parts
4 pedestals
41 radiating fins
5 second accommodation spaces
6 second circuit boards
The air-flows of A1 first
The air-flows of A2 second
The air-flows of A3 the 3rd
F fans
H screws
L limiting sections
O connecting holes
R stagnant areas
S screws
Embodiment
Hereinafter with reference to relevant drawings, illustrate a kind of fan according to present pre-ferred embodiments, wherein identical element will
It is illustrated with identical reference marks.
Figure 1A is the exploded perspective top view of the fan of present pre-ferred embodiments, and Figure 1B is the section of fan shown in Figure 1A
Figure, please also refer to shown in Figure 1A and Figure 1B.Fan F includes a motor 1, an impeller 2 and a radiator structure 3.Impeller 2 includes
One wheel hub 21 and multiple outer flabellums (or first flabellum) 22.Wherein wheel hub 21 is a hollow structure, and it is to accommodating motor 1
And the structure according to wheel hub 21 can be divided into top 211 and be surrounded on the side wall 212 of its outer peripheral edge, as shown in Figure 2.
It refer to shown in Figure 1A and 1B, impeller 2 also has two loop configuration 23, and outer flabellum 22 is located in two annulars
Between structure 23, and one of loop configuration 23 and the side wall 212 of wheel hub 21 link.In the present embodiment, loop configuration
23 are made up of upper loop configuration 23a and lower loop configuration 23b, and lower loop configuration 23b and wheel hub 21 side wall 212 link, wheel
Hub 21 also has a linking part 213, in detail, linking part 213 to extend the convex portion to be formed or platform from side wall 212, and under
Loop configuration 23b has multiple screws, and the linking part 213 of wheel hub 21 is connected with lower loop configuration 23b in a manner of screw S screw locks
Knot.Certainly, the present invention is not limited.
Radiator structure 3 is similarly provided at the outside of wheel hub 21, specifically, is arranged at the top 211 of wheel hub 21, wheel hub 21
Top 211 there is an at least heat emission hole 214.As shown in Fig. 2 radiator structure 3 have a baffle plate 31 and at least one in flabellum (or
Claim the second flabellum) 32, interior flabellum 32 extends from baffle plate 31 toward vertical direction, and the position correspondence of interior flabellum 32 is in heat emission hole 214.
In the present embodiment, the top 211 of wheel hub 21 has four heat emission holes 214, and the position correspondence of each heat emission hole 214 is in two
Flabellum 32, therefore the radiator structure 3 in the present embodiment has 8 interior flabellums 32, certainly, the present invention is not with heat emission hole 214 and correspondingly
The quantity of interior flabellum 32 be limited.In addition, there is wheel hub 21 an at least groove 215 to extend from heat emission hole 214 toward radial direction, shape
Into in the surface of top 211 of wheel hub 21.Interior flabellum 32 is sticked in groove 215, and is located on heat emission hole 214, in other words, interior
Root edge a portion of flabellum 32 is arranged in groove 215, and another part is then suspended on heat emission hole 214.And in this implementation
In example, the quantity of groove 215 corresponds to the quantity of interior flabellum 32, therefore engages with 8 structures of groove 215 for interior flabellum 32, with
Flabellum 32 in fixation, fan F operatings are avoided to cause the slip and vibrations of interior flabellum 32.
As shown in Fig. 2 wheel hub 21 has at least one first fixed part 216, radiator structure 3 has at least one second fixed part
33, the first fixed part 216 and the second fixed part 33 are interconnected (also can first arrange in pairs or groups with reference to figure 3).In the present embodiment, second is solid
It is the stud that extends downward vertically from baffle plate 31 to determine portion 33, and what is extended is oriented parallel to interior flabellum 32, and the first fixed part 216
For the screw corresponding with the second fixed part 33, with mutual screw lock.Certainly, in other embodiment, the first fixed part 216 and
Two fixed parts 33 are interconnected also in a manner of riveting or weld, and the present invention is not limited.
Fig. 3 is the partial enlarged drawing of the fan shown in Figure 1B, be please also refer to shown in Figure 1B and Fig. 3, impeller 2 and motor 1
Connection, therefore when fan F is operated, impeller 2 is driven by motor 1.Fan F has an axle center 217 and an iron-clad 218, and in this
In embodiment, axle center 217 and iron-clad 218 and wheel hub 218 are shaped in the body 219 of wheel hub 21 in a manner of die casting, need to note
It is bright, in the wheel hub 21 described in this specification body 219 include foregoing top 211, side wall 212, linking part 213, dissipate
The structures (referring to shown in Fig. 2) such as hot hole 214, the fixed part 216 of groove 215 and first, book content is succinct for purposes of explanation, with body
219 common names.Specifically, axle center 217 and iron-clad 218 with the Unitary injection formed of body 219 (or penetrating bag) to form wheel hub
21 overall structure, and be molded in the junction in axle center 217 and iron-clad 218 and wheel hub 21 in a manner of die casting.The sheet of wheel hub 21
The material of body 219 is light metal, and preferably aluminium material.In the present embodiment, axle center 217 and iron-clad 218 are all ironware, and with
The Unitary injection formed of body 219 of aluminium material is the overall structure of wheel hub 21, and the company of axle center 217 and iron-clad 218 and body 219
Also strengthen linking in a manner of die casting at knot, compared to the wheel hub of existing plastic cement material and the axle center of ironware to rivet, close-fitting or
The mode of connection of iron hoop is set up, the axle center 217 and body 219 of the present embodiment are linked in a manner of die casting also lifts its link by force
Degree.
Motor 1 has a bearing 11, and the axle center 217 of wheel hub 21 is supported by bearing 11, when motor 1 operates, by band
Runner hub 21 rotates, and then the integral-rotation of impeller 2.Fig. 4 is the air current flow direction schematic diagram of the fan shown in Figure 1B,
Fig. 5 is the constitutional diagram of the wheel hub and radiator structure shown in Fig. 2, be please also refer to shown in Fig. 3 to Fig. 5, when the impeller 2 of motor 1
During rotation, outer flabellum 22 is driven to rotate and produce the first air-flow A1, to provide required air quantity, while wheel hub 21 drives interior flabellum
32 rotations, and in producing convection effect in the region of wheel hub 21 and motor 1, to produce the second air-flow A2, make caused by motor 1
Used heat discharges (can be with reference to Fig. 4 and Fig. 5) from heat emission hole 214, reaches the effect for enabling the coil of motor 1 to radiate whereby,
The temperature of bearing 11 can be reduced simultaneously, to lift the service life of motor 1 and its bearing 11.Also, as caused by interior flabellum 32
The disturbance that second air-flow A2 belongs to inside fan F, its increased limited power consumption of institute, the setting of radiator structure 3 can't be to fan F
The characteristic and power consumption of itself have extra loss.In addition, the setting of heat emission hole 214 is gone back except that can exclude used heat caused by motor 1
Because of the construction of its perforate, the overall weight of wheel hub 21 can be mitigated, meanwhile, wheel hub 21 has the body 219 of aluminium material (such as Fig. 3 institutes
Show), also there is the effect of overall weight for mitigating wheel hub 21.
In general, existing centrifugal fan, often there is the turnover of wide-angle at the inlet air of its impeller with wind outlet, and in
Turning point easily produces the phenomenon of turbulent flow, causes the obstruction in flow field, efficiency to reduce.The fan F of the present embodiment, as shown in figure 4, its
The closer interior flabellum 32 in junction of impeller 2 and wheel hub 21, in other words, lower loop configuration 23b is located proximate to linking part 213
Interior flabellum 32, the lower loop configuration 23b linked with wheel hub 21 also have an inclined-plane, and the design of such a set-up mode and inclined-plane can
The first air-flow A1 streamline is more smoothed out, decrease in caused turbulent flow phenomenon when wind direction turns to.
In addition, when existing fan running, the air above its wheel hub can produce stagnant area due to that can not flow, and this
The wheel hub 21 of the fan of invention has heat emission hole 214, and the also corresponding heat emission hole 214 of radiator structure 3 is arranged on wheel hub 21, with
The second air-flow A2 is produced, and then the air inside motor 1 is flowed out via the second air-flow A2 guiding from heat emission hole 214,
And surrounding is flowed to by the rotation of impeller 2, therefore compared to existing fan, the generation of stagnant area R and turbulent flow can be reduced, can be subtracted
The generation of few noise.
In addition, radiator structure 3 has the design of baffle plate 31, make to form one between heat emission hole 214, interior flabellum 32 and baffle plate 31
Complete path, i.e., the path that the second air-flow A2 is flowed, the air of the top of radiator structure 3 can be avoided by the second air-flow A2's
Attract, to ensure that the second air-flow A2 comes from the air at motor 1, and then lift the efficiency that used heat caused by motor 1 excludes.
In the present embodiment, the blade of interior flabellum 32 is airfoil fan, and the aerofoil profile curvature of interior flabellum 32 and outer flabellum 22
Direction is identical, therefore when outer flabellum 22 rotates, interior flabellum 32 also with outer 22 equidirectional rotation of flabellum, and then in the region of heat emission hole 214
Reverse flow field, i.e. the second air-flow A2 are produced, and used heat caused by the motor 1 for being arranged at the inner side of wheel hub 21 can be taken out, with lifting
The effect of motor radiating.In addition, the structure of groove 215 corresponds to the part-structure of the interior root edge of flabellum 32, in other words, groove 215
There is specific radian according to the aerofoil profile curvature of interior flabellum 32, interior flabellum 32 is sticked in groove 215 with fixed direction, with true
Protect when radiator structure 3 is arranged at wheel hub 21, the direction of its interior flabellum 32 is consistent with outer flabellum 22, to avoid installing anisotropy
(i.e. foolproof function), and then lead to not the situation to form reverse flow field.
Fig. 6 A are the exploded perspective upward view of the fan shown in Figure 1A and 1B, and Fig. 6 B are the signal of load bearing seat and cover sheet
Figure, and Fig. 6 C are the schematic diagram after the assembling of element shown in Fig. 6 B, please also refer to Figure 1B, Fig. 6 A, shown in Fig. 6 B and Fig. 6 C.Motor
1 includes a stator magnet group 12, a load bearing seat 13, a first circuit board 14 and a protection lid 15.Stator magnet group 12 has more
Individual polar arm 121, it is arranged with multiple coils, and the present invention does not limit the quantity of polar arm, and the present embodiment is with 12 polar arms 121
Exemplified by.In addition, the motor 1 of the present embodiment is illustrated by taking three-phase motor as an example, certain motor 1 can also be single-phase motor,
This is not restricted.
Load bearing seat 13 carries stator magnet group 12.As shown in Figure 6B, load bearing seat 13 has central siphon 131 and ringwall 132, ringwall
132 rings are set around central siphon 131.Stator magnet group 12 is sheathed on the central siphon 131 of load bearing seat 13.Central siphon 131 is provided with a block
Portion 1311, when stator magnet group 12 is installed in central siphon 131, stop section 1311 by stator magnet group 12 be maintained at a level altitude without
It is attached directly on load bearing seat 13.In this, one first accommodation space is formed between the ringwall 132 of stator magnet group 12 and load bearing seat 13
133。
First circuit board 14 is arranged at the first accommodation space 133.First circuit board 14 is the driving electricity that drive motor 1 operates
Road plate, and the coil for being set around polar arm 121 is electrically connected at first circuit board 14.In addition, first circuit board 14 is to be arranged in axle
Pipe 131 and insert the first accommodation space 133.In this, protection lid 15 is also arranged in central siphon 131 to cover first circuit board 14.
Lid 15 is protected to link with first circuit board 14 by an at least retaining element.Protection lid 15 passes through three screws
(i.e. retaining element) S is locked on first circuit board 14, and wherein screw S locking position can be asymmetrical design, is used with profit
Person correctly assembles protection lid 15 on circuit board 14, that is, fool-proof design.Certainly, lid 15 and first circuit board 14 are protected
It can only be linked with retaining element, be advisable with that can link really.It is noted that protection lid 15 has a limiting section
L, and first circuit board 14 has a corresponding limiting section L detent 141, to ensure that detent 141 is corresponding to limiting section L
Shi Caike installs first circuit board 14 and protection lid 15.
Protect lid 15 that there is at least one perforation 151.Coil is electrically connected at first circuit board 14, example by perforation 151
Motor 1 such as the present embodiment is three-phase motor, and its three groups of coils (U, V, W) can be connected to the by three perforation 151 respectively
One circuit board 14.In addition, perforation 151 can wear other electronic components, such as, but not limited to Hall sensor, hot fuse or its
His wire, consequently, it is possible to electronic component wears perforation 151 and is arranged on first circuit board 14, or by perforation 151 and with
Stator magnet group 12 connects.In addition, protection lid 15 can be insulating materials, the electronic component on first circuit board 14 can be avoided with determining
Sub- magnetic group 12 is electrically connected with and short-circuit.
Because fan F is likely to be at the use environment of humidity, to avoid aqueous vapor from causing first into the first accommodation space 133
Circuit board 14 damages, therefore after protecting lid 15 to cover first circuit board 14, the ringwall 132 of protection lid 15 and load bearing seat 13
Between be provided with marine glue, and the gap that marine glue is filled up between load bearing seat 13 and ringwall 132 really and with waterproof effect
Fruit.Marine glue is silica gel, but is not limited with this material.Similarly, protect and also may be used between the perforation 151 of lid 15 and electronic component
It is provided with marine glue.
In addition, load bearing seat 13 has a radiating fin 134.It refer to Fig. 6 B and arrange in pairs or groups shown in Fig. 4, radiating fin 134 is set
It is placed on the ringwall 132 of load bearing seat 13.When fan F operates the used heat for producing the second air-flow A2 and taking out on the inside of wheel hub 21, wheel
Gap between hub 21 and protection lid 15 will be produced from outside wheel hub 21 to the 3rd air-flow A3 of the internal flow of wheel hub 21.3rd
Air-flow A3 can bring used heat caused by first circuit board 14 to the inner side of wheel hub 21, and be discharged by the second air-flow A2 so that the
One circuit board 14 is not easy to overheat and damage.In this, radiating fin 134 can lift the 3rd air-flow A3 radiating effect.
In addition, refer to shown in Figure 1B and Fig. 6 A, the fan F of the present embodiment also includes a pedestal 4, and motor 1 is arranged at base
Seat 4, and load bearing seat 13 and pedestal 4 are collectively forming one second accommodation space 5, available for housing a second circuit board 6.Second is accommodating
Space 5 is electric panel room, and second circuit board 6 is the circuit board of connection supply power supply, and it has the work(such as modulation, filtering or rectification
Can, to provide the driving voltage of first circuit board 14.In this, load bearing seat 13 has an at least connecting hole O, first circuit board 14 and
Two circuit boards 6 are electrically connected with by connecting hole O.And connecting hole O is alternatively the hole of radiating convection.Due to the first accommodation space
133 and the second accommodation space 5 among there is connecting hole O, therefore protection lid 15 can also avoid aqueous vapor from being made into the second accommodation space 5
Damaged into second circuit board 6.
In addition, as shown in Figure 6A, load bearing seat 13 has a heat conduction projection 135.Heat conduction projection 135 is from load bearing seat 13 towards
The surface extension of two circuit boards 6, and the second circuit board 6 of abutment portion.Load bearing seat 13 is metal, is such as, but not limited to included
The high metal of the thermal conductivity factors such as copper, iron or aluminium.Consequently, it is possible to the electronics member on second circuit board 6 is abutted by heat conduction projection 135
Part, second circuit board 6 can be operated to caused used heat and brought to load bearing seat 13, and hot ease is made by the 3rd above-mentioned air-flow A3
Dissipate.
In addition, as shown in Figure 1A, pedestal 4 also has radiating fin 41, it is arranged at the outside of pedestal 4, can assist the second appearance
5 second circuit board 6 radiates between being empty.The material of this certain pedestal 4 is alternatively the high metal of the thermal conductivity factors such as copper, iron or aluminium,
Electronic element radiating efficiency can be increased, internal circuit is had the function of anti-external disturbance.
In general, diameter 360mm existing centrifugal fan, in power output is 720W, rotating speed is 2000RPM and room
Operated 10 minutes under the environmental condition of about 20 DEG C of temperature, the coil temperature of its motor may be up to 100 DEG C, and not yet stable, temperature
Still sustainable rising.And the fan F of the present invention is operated 10 minutes under similarity condition, the coil temperature of its motor 1 can be stably
Less than about 50 DEG C are maintained, caused used heat when operating of motor 1 can be excluded really.
In summary, the wheel hub of fan of the invention has heat emission hole, and radiator structure is arranged at setting on the outside of wheel hub
Meter, when making motor drive hub rotation, radiator structure and its interior flabellum can be driven to rotate simultaneously, and in the region of wheel hub and motor
Interior generation convection effect, to produce the second air-flow, used heat caused by motor is set to be discharged from heat emission hole, reach makes motor whereby
Coil be able to the effect to radiate, while the temperature of bearing can be reduced, to lift the service life of motor and its bearing.
Air inside motor flows out via the guiding of the second air-flow and from heat emission hole, and is flowed to by the rotation of impeller
Surrounding, therefore compared to existing fan, the generation of stagnant area and turbulent flow can be reduced, the generation of noise can be reduced.And by interior flabellum
The disturbance that caused second air-flow belongs to inside fan, its increased limited power consumption of institute, the setting of radiator structure can't be right
Fan characteristic in itself and power consumption have extra loss.
In addition, the setting of heat emission hole can mitigate wheel hub except that can exclude used heat caused by motor, the also construction because of its perforate
Overall weight.
In addition, the blade of interior flabellum is if airfoil fan, and interior flabellum is identical with the aerofoil profile curvature direction of outer flabellum, in outer
When flabellum rotates, interior flabellum and outer flabellum are equidirectional rotation, and then produce reverse flow field, i.e. the second gas in radiating bore region
Stream, and used heat caused by the motor being arranged on the inside of wheel hub can be taken out, to lift the effect of motor radiating.
On the other hand, protect between lid and load bearing seat and protection cap is with can be set marine glue at circuit board perforation, make
When fan is in moist use environment, aqueous vapor can be avoided to enter the life-span for influenceing circuit board.
Illustrative is the foregoing is only, rather than is restricted.Any spirit and scope without departing from the present invention, and it is entered
Capable equivalent modifications or change, are intended to be limited solely by the scope of appended claims.
Claims (22)
1. a kind of fan, including：
One motor, including：
One stator magnet group；
One load bearing seat, carries the stator magnet group, and the load bearing seat forms one first accommodation space with the stator magnet group；
One first circuit board, it is arranged at first accommodation space；And
One protection lid, covers the first circuit board；
One impeller, including：
One wheel hub, to house the motor, the wheel hub has an at least heat emission hole；And
Multiple first flabellums, are arranged at around the wheel hub；
One radiator structure, is arranged at the outside of the wheel hub, and the radiator structure has a baffle plate and at least one second flabellum, institute
State the second flabellum from the baffle plate to extend, and the position correspondence of second flabellum is in the heat emission hole, the wheel hub tool
Have at least that a groove extends from the heat emission hole, second flabellum is sticked in the groove, and the second flabellum part is set
In the groove, partly it is suspended on the heat emission hole；And
One pedestal, the motor are arranged on the pedestal, and the load bearing seat is collectively forming one second with the pedestal and housed
Space, to house a second circuit board；
Wherein, at least one of on the outside of a pedestal and ringwall edge of the load bearing seat is provided with radiating fin.
2. fan as claimed in claim 1, wherein the part that the structure of the groove corresponds to the second flabellum root edge is tied
Structure.
3. fan as claimed in claim 1, wherein there is the wheel hub at least one first fixed part, the radiator structure to have
At least one second fixed part, first fixed part are interconnected with second fixed part, wherein first fixed part with
Second fixed part is interconnected in a manner of screw lock, riveting or welding.
4. fan as claimed in claim 1, wherein first flabellum and second flabellum include airfoil fan, wherein institute
It is identical with the aerofoil profile curvature direction of second flabellum to state the first flabellum.
5. fan as claimed in claim 1, wherein the impeller also has two loop configuration, the multiple first flabellum folder
Between described two loop configuration, one of described two loop configuration link with the wheel hub.
6. fan as claimed in claim 5, wherein one of described two loop configuration have multiple screws, and with institute
Wheel hub is stated in a manner of screw lock to link.
7. fan as claimed in claim 5, wherein the loop configuration linked with the wheel hub has an inclined-plane.
8. fan as claimed in claim 1, wherein the wheel hub has an axle center and an iron-clad, the axle center and the iron-clad
The body of the wheel hub is shaped in a manner of die casting.
9. fan as claimed in claim 1, wherein the wheel hub includes a light metal.
10. fan as claimed in claim 1, wherein the load bearing seat has an at least connecting hole, the first circuit board with
The second circuit board is electrically connected with by the connecting hole.
11. the fan as described in claim 1 or 10, wherein the second circuit board is the circuit board that power supply is supplied in a connection,
To provide driving voltage to the first circuit board.
12. fan as claimed in claim 1, wherein the load bearing seat has a heat conduction projection, from the load bearing seat towards institute
State the surface extension of second circuit board, and the second circuit board of abutment portion.
13. fan as claimed in claim 1, wherein between the protection cap body and the load bearing seat, be provided with marine glue or
Silica gel.
14. fan as claimed in claim 1, wherein the protection cap body is with least one perforation, it is described to be equipped with one
Electronic component.
15. fan as claimed in claim 14, wherein between the perforation and the electronic component or the protection cap with
Marine glue is provided with the perforation of the circuit board.
16. fan as claimed in claim 14, wherein the electronic package includes Hall sensor, hot fuse or wire.
17. fan as claimed in claim 1, wherein the protection cap body has a limiting section, the first circuit board has
One detent of the corresponding limiting section, to ensure that the detent is corresponding to the limiting section.
18. fan as claimed in claim 1, wherein the protection cap body fixes member with the first circuit board by least one
Part links.
19. fan as claimed in claim 18, wherein when with multiple retaining elements, the fixation of the multiple retaining element
Position is asymmetrical design.
20. fan as claimed in claim 1, wherein the load bearing seat has a central siphon and a ringwall, the ringwall ring sets institute
State around central siphon, the stator magnet group is sheathed on the central siphon, and the central siphon has a stop section, when the stator magnet assembles
Located at the central siphon, the stator magnet group is maintained at a level altitude by the stop section.
21. fan as claimed in claim 1, wherein the load bearing seat is made up of copper, iron, aluminium.
22. fan as claimed in claim 1, wherein the protection cap body is made up of insulating materials.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410197971.XA CN105090068B (en) | 2014-05-12 | 2014-05-12 | Fan |
| US14/326,776 US10100845B2 (en) | 2013-08-07 | 2014-07-09 | Fan |
| EP14177637.7A EP2835537B1 (en) | 2013-08-07 | 2014-07-18 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410197971.XA CN105090068B (en) | 2014-05-12 | 2014-05-12 | Fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090068A CN105090068A (en) | 2015-11-25 |
| CN105090068B true CN105090068B (en) | 2018-02-09 |
Family
ID=54571191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410197971.XA Active CN105090068B (en) | 2013-08-07 | 2014-05-12 | Fan |
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| Country | Link |
|---|---|
| CN (1) | CN105090068B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397403A (en) * | 2018-02-08 | 2018-08-14 | 浙江希尔富电气有限公司 | A kind of air blower integral structure of embedded heat dissipating ring |
| CN109209930B (en) * | 2018-11-27 | 2024-11-05 | 中国航空研究院 | Turbofan and air supply system |
| CN111456951A (en) * | 2019-01-17 | 2020-07-28 | 青岛海尔空调器有限总公司 | Laminar flow fan |
| TWI724872B (en) * | 2020-04-17 | 2021-04-11 | 建準電機工業股份有限公司 | Centrifugal impeller and centrifugal fan including the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173684A (en) * | 2006-11-01 | 2008-05-07 | 台达电子工业股份有限公司 | Fan and its frame |
| CN201486915U (en) * | 2009-06-12 | 2010-05-26 | 台达电子工业股份有限公司 | Fan, stator module and waterproof structure thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8324766B2 (en) * | 2004-09-06 | 2012-12-04 | Delta Electronics, Inc. | Heat-dissipation structure for motor |
| TWI354530B (en) * | 2008-02-01 | 2011-12-11 | Delta Electronics Inc | Fan and impeller thereof |
-
2014
- 2014-05-12 CN CN201410197971.XA patent/CN105090068B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173684A (en) * | 2006-11-01 | 2008-05-07 | 台达电子工业股份有限公司 | Fan and its frame |
| CN201486915U (en) * | 2009-06-12 | 2010-05-26 | 台达电子工业股份有限公司 | Fan, stator module and waterproof structure thereof |
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| Publication number | Publication date |
|---|---|
| CN105090068A (en) | 2015-11-25 |
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