CN201409045Y

CN201409045Y - motor with concentrated airflow

Info

Publication number: CN201409045Y
Application number: CN200920005065XU
Authority: CN
Inventors: 薛仁豪
Original assignee: Rexon Industrial Corp Ltd
Current assignee: Rexon Industrial Corp Ltd
Priority date: 2009-03-09
Filing date: 2009-03-09
Publication date: 2010-02-17
Anticipated expiration: 2019-03-09

Abstract

The utility model relates to a motor with concentrated airflow, which mainly comprises a shell, a stator, a rotor and an air deflector, the stator is arranged in the shell, the rotor is rotatably arranged on the stator, the air deflector is sheathed on the rotor, wherein the air deflector is provided with a bottom wall and a sidewall, the sidewall is extended from the circumference of the bottom wall to surround the blades of the rotor, moreover, a guide corner is formed between the sidewall and the bottom wall to guide and concentrate the air flow sucked by the rotating blades of the rotor, and thereby the air flow can be increased to enhance the heat-dissipating effect of the motor.

Description

Has the distinguished and admirable motor of concentrating

Technical field

The utility model relates to motor, particularly relates to a kind of motor of concentrating distinguished and admirable effect that has, and is specially adapted to saw cutting implement.

Background technology

Tradition is used for the motor of saw cutting implement all can install a wind deflector in enclosure interior usually, and the air-flow that the rotor that can guide motor is sucked when rotating is to provide the radiating effect of motor inside.

Yet existing wind deflector is dull and stereotyped structural design without any air-guiding, makes to have the air-flow that wind deflector can't concentrate rotor to be introduced very effectively, the related radiating effect that will have influence on motor inside now when rotating; And, after air communication is crossed wind deflector, all be to discharge usually, if saw cutting implement is simultaneously when sawing workpieces from the louvre of motor side, the air-flow of being discharged from the motor side causes the cutting swarf of workpiece to disperse probably everywhere, increases operating personnel's operation danger.

As the heat-dissipating structure of No. 486195 disclosed motor of patent case of TaiWan, China, and the disclosed motor heat sink of M300395 patent case, can it is evident that from the accompanying drawing of above-mentioned two patent cases air-flow is to discharge from the louvre of motor side.

On the other hand, the rotating shaft end of rotor can be installed a dirt-proof boot usually, contacts with the bearing of the rotating shaft end of being located at rotor in order to prevent the extraneous dust or the cutting swarf of workpiece.Yet, under the long-term running of rotor, contacting for face and face between the end face of dirt-proof boot and motor, produce the gap probably because of expanding with heat and contract with cold, thus, the extraneous dust or the cutting swarf of workpiece are easily invaded in the gap, cause having some setbacks of bearing operation, even may cause the fault of rotor and reduce useful life.As TaiWan, China I283100 patent case disclosed " fan motor " then is that basal wall, bearing post and bearing with housing forms enclosed construction respectively, so that the good dust-proof effect to be provided.

The utility model content

Main purpose of the present utility model is to provide a kind of motor, and it has the distinguished and admirable effect of concentrating, and provides inner better heat radiating effect to increase air mass flow.

Of the present utility model time a purpose is to provide a kind of motor, and it has the good dust-proof effect.

For reaching above-mentioned purpose, motor provided by the utility model includes a housing, a stator, a rotor and a wind deflector.This housing has an accommodation space; This stator is located in the accommodation space of this housing, and has an axis hole; This rotor is located in the axis hole of this stator rotationally, and has a rotating shaft and a plurality of blade of being located at this rotating shaft; This wind deflector has a diapire and a sidewall, and wherein, this diapire has a perforation and supplies the rotating shaft of this rotor to wear, and this sidewall is looped around around these a plurality of blades by the periphery extension of this diapire, and has a lead angle between this sidewall and this diapire.

In embodiment of the present utility model, this rotor also includes a dirt-proof boot, and dirt-proof boot has an annular groove, and this motor has a bonnet, the end face of this bonnet has a protruding wall, and this protruding wall can embed in this annular groove and form enclosed construction, in order to the effective extraneous dust or cutting swarf of workpiece of intercepting.

The beneficial effects of the utility model: but the utility model motor sees through the air-flow that blade attracted of this rotor in the lead angle active set of this wind deflector, provides motor better heat radiating effect of the present utility model to increase air mass flow.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 2 is the end-view of the motor carriage of the utility model one preferred embodiment.

Fig. 3 is the end-view of the motor bonnet of the utility model one preferred embodiment.

Fig. 4 is vertical partial sectional view of the utility model one preferred embodiment.

[main element symbol description]

Motor 10 housings 20

Carriage 22 location indentations 221

First fixing hole, 223 ventholes 225

Bonnet 24 positioning convex portion 242

Second fixing hole, 244 ring walls 246

Accommodation space 26 end plates 28

Groove 282 protruding walls 284

Air admission hole 286 stators 30

Axis hole 32 coils 36

Rotor 40 rotating shafts 42

Blade 44 first lead angles 442

Bearing 46,47 dirt-proof boots 48

Annular groove 482 wind deflectors 50

Diapire 52 perforation 522

Lug 524 sidewalls 54

Second lead angle, 56 location notchs 58

Embodiment

Now conjunction with figs. is enumerated following preferred embodiment, in order to structure of the present utility model and effect are elaborated.

See also Fig. 1 and Fig. 4, be the motor 10 that the utility model one preferred embodiment is provided, include a housing 20, a stator 30, a rotor 40 and a wind deflector 50.

Please cooperate and consult Fig. 2 and Fig. 3, housing 20 has a carriage 22 and a bonnet 24.Carriage 22 has eight location indentations 221 and four first fixing holes 223, these a plurality of location indentations 221 are that the center with carriage 22 is equiangularly arranged, make that the angle between adjacent two location indentations 221 is 45 degree, these a plurality of first fixing holes 223 are positioned at four corners of carriage 22, and carriage 22 has the venthole 225 of the inside and outside two sides of a plurality of break-through in addition.Bonnet 24 has eight positioning convex portion 242 and four second fixing holes 244, also 45 degree between the two adjacent positioning convex portion 242, these a plurality of positioning convex portion 242 can be snapped into respectively in these a plurality of location indentations 221 can between carriage 22 and bonnet 24, define an accommodation space 26, and these a plurality of second fixing holes 244 are respectively to should a plurality of first fixing holes 223, can be spirally connected for a bolt (not shown) respectively, in order to carriage 22 and bonnet 24 are fixed together; Bonnet 24 has an end plate 28, and the medial surface central authorities of end plate 28 have the protruding wall 284 that a groove 282 and is formed at groove 282 peripheries, and as shown in Figure 4, and end plate 28 has the air admission hole 286 of the inside and outside two sides of a plurality of break-through in addition.Bonnet 24 has a fin (not shown) respectively in top, the ends two medial surface of end plate 28 relative end perisporiums.

Stator 30 is installed in the accommodation space 26 of housing 20, and has an axis hole 32 in central authorities, and has a coil 36 respectively in the top of axis hole 32 perisporiums, the left and right sides face at two ends, the end.

Rotor 40 is installed in the axis hole 32, can be subjected to the action of a magnetic field of stator 30 and rotates.Rotor 40 has a rotating shaft 42, a plurality of blade 44, two

bearings

46,47 and a dirt-proof boot 48.These a plurality of blades 44 are located at rotating shaft 42, and become one first lead angle 442 respectively at an end dihedral wherein, as shown in Figure 4; These a plurality of

bearings

46,47 are connected to the front and back end of rotating shaft 42, and a bearing 47 wherein also is arranged in the groove 282 of the bonnet 24 of motor 10; Dirt-proof boot 48 be located at rotating shaft 42 end and with bearing 47 butts, and have an annular groove 482 that can embed for protruding wall 284.

Wind deflector 50 has a diapire 52 and a sidewall 54.The central authorities of diapire 52 have a perforation 522, can wear for the rotating shaft 42 of rotor 40, and diapire 52 stretches out two relative lugs 524 in the periphery of perforation 522, can be arranged in respectively in the axis hole 32 of stator 30, and be connected to the perisporium of axis hole 32, coil 36 proper simultaneously and stator 30 staggers, and as shown in Figure 4, makes these a plurality of lugs 524 and these a plurality of coils 36 axis hole 32 of stator 30 can be formed the port of export of sealing.Sidewall 54 is looped around around the blade 44 of rotor 40 by the periphery extension of diapire 52, and has first lead angle 442 of one second lead angle, 56, the second lead angles, 56 corresponding each blade 44 between sidewall 54 and the diapire 52.In addition, sidewall 54 has two location notchs 58, can be sticked in the fin of bonnet 24, and wind deflector 50 can't be rotated arbitrarily relative to bonnet 24.

When rotor 40 rotates, because of the blade 44 of rotor 40 by 54 of the sidewalls of wind deflector 50 around, add that wind deflector 50 and each blade 44 have the design of second lead angle 56 and first lead angle 442 respectively, the air-flow that makes the blade 44 of rotor 40 be attracted when rotating can be concentrated the perforation 522 by wind deflector 50, to increase the flow of air, promote the radiating effect of motor 10 of the present utility model; Simultaneously, the air-flow of the perforation 522 by wind deflector 50 only can be discharged via the venthole 225 of the carriage 22 of motor 10, and can not discharged by the side of motor 10, can not avoid causing the cutting swarf of workpiece to disperse everywhere.

In addition, motor 10 of the present utility model has annular groove 482 in dirt-proof boot 48, can supply protruding wall 284 embeddings of bonnet 24 and form good enclosed construction, as shown in Figure 4, contacts with bearing 47 with the dust in effective obstruct external world or the cutting swarf of workpiece.

Moreover, be to fit together between carriage 22 and the bonnet 24 by engaging between eight location indentations 221 and eight positioning convex portion 242, wherein, the a plurality of positioning convex portion 242 of this of bonnet 24 are distributed in a ring wall 246 of bonnet 24, and be positioned at the inner edge of these a plurality of second fixing holes 244, when making temperatures involved when these a plurality of positioning convex portion 242 are not easy to be subjected to motor 10 runnings and produce distortion, with the situation of avoiding causing these a plurality of positioning convex portion 242 to interfere because of a plurality of location indentations 221 of distortion and this.

The utility model is taken off disclosed composed component among the embodiment in preceding, only for illustrating, is not the scope that is used for limiting this case, the alternative or variation of other equivalence element, and the claim that also should be this case contains.

Claims

1. one kind has the distinguished and admirable motor of concentrating, and it is characterized in that, includes:

One housing has an accommodation space;

One stator is located in the accommodation space of this housing, and has an axis hole;

One rotor is located in the axis hole of this stator rotationally, and has a rotating shaft and a plurality of blade of being located at this rotating shaft; And

One wind deflector has a diapire and a sidewall, and this diapire has a perforation and supplies the rotating shaft of this rotor to wear, and this sidewall is looped around around these a plurality of blades by the periphery extension of this diapire, and has a lead angle between this sidewall and this diapire.

2. as claimed in claim 1 have concentrate distinguished and admirable motor, it is characterized in that this wind deflector has two relative lugs, these a plurality of lugs are arranged in respectively in the axis hole of this stator, and the perisporium of this axis hole of butt.

3. as claimed in claim 1 have concentrate distinguished and admirable motor, it is characterized in that respectively this blade has a lead angle in the end angle near the diapire of this wind deflector, respectively the lead angle of this blade to should sidewall and this diapire between lead angle.

4. as claimed in claim 1 have concentrate distinguished and admirable motor, it is characterized in that the end face of this housing has a protruding wall, this rotor also has a dirt-proof boot, this dirt-proof boot is located at the end of this rotating shaft, and has an annular groove for this protruding wall engaging.

5. as claimed in claim 1 have concentrate distinguished and admirable motor, it is characterized in that, this housing has a carriage and a bonnet, this carriage has eight location indentations, these a plurality of location indentations are that the center with this carriage is equiangularly arranged, this bonnet has eight positioning convex portion, and these a plurality of positioning convex portion snap into respectively in these a plurality of location indentations.

6. as claimed in claim 5 have concentrate distinguished and admirable motor, it is characterized in that this wind deflector has two location notchs, the perisporium of this bonnet has two fins, is sticked in this a plurality of location notchs respectively.