CN102111022B - Motor - Google Patents
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- CN102111022B CN102111022B CN 200910249521 CN200910249521A CN102111022B CN 102111022 B CN102111022 B CN 102111022B CN 200910249521 CN200910249521 CN 200910249521 CN 200910249521 A CN200910249521 A CN 200910249521A CN 102111022 B CN102111022 B CN 102111022B
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- central siphon
- motor
- tight fit
- assembly hole
- pedestal
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Abstract
The invention provides a motor which at least comprises a base, a stator assembly and a rotor, wherein the base is provided with a shaft tube, and the shaft tube is provided with a peripheral wall; the stator assembly is combined with the shaft tube of the base and is provided with an assembling hole, a plurality of close fit parts are formed between the inner side hole wall of the assembling hole and the peripheral wall of the shaft tube, and an adjusting gap is respectively arranged between the close fit parts; and the rotor is provided with a central shaft which is rotatably combined with the shaft tube of the base. By means of the simple structural design of the adjusting gap, the problem that the shaft tube has high possibility of being excessively oppressed by the stator assembly issolved.
Description
Technical field
The invention relates to a kind of motor, especially a kind of motor that prevents the central siphon distortion.
Background technology
Present common existing motor on the market roughly can be divided into the motor with metal central siphon and have the motor of plastics central siphon.
Please refer to shown in Figure 1ly, announce " metal tube of motor of heat-dissipating fan and bearing construction thereof " patent case No. 384947 as TaiWan, China, disclose a kind of motor with metal central siphon.Should existing motor 7 be that a metal central siphon 71 is incorporated into a shell block 72, and have a stator seat 73 of the periphery wall that tightly fits in this metal central siphon 71; In addition, several bearings 74 are set in this metal central siphon 71, these several bearings 74 can articulate combination for a rotor 75.
Yet, in actual process of assembling, this stator seat 73 generally is the periphery wall that is incorporated into this metal central siphon 71 in the tight fit mode, supposes that just bonding state between this stator seat 73 and this metal central siphon 71 too closely the time, will cause excessively these metal central siphons 71 of compressing of this stator seat 73; At this moment, can prevent or cushion the deformed configurations design owing to there is no between this stator seat 73 and this metal central siphon 71, therefore, cause this metal central siphon 71 to be subjected to the compressing of this stator seat 73 easily and be out of shape, metal central siphon 71 after its distortion equally also can directly be oppressed this bearing 74, make this bearing 74 be easy to generate problems such as distortion, damage or center off normal, and then the useful life of reducing this motor 7.Moreover, this existing motor 7 difficulty comparatively on the procedure of processing of metal central siphon 71, and must waste unnecessary manpower this metal central siphon 71 is assembled on this shell block 72, cause the inconvenience in the assembling, and increase manufacturing cost relatively.
And for example shown in Figure 2, be to disclose a kind of motor with plastics central siphon.Should mainly comprise a pedestal 81, a stator 82 and a rotor 83 by existing motor 8.This pedestal 81 has a plastics central siphon 811, and a bearing 812 is set in this plastics central siphon 811; This stator 82 is incorporated into the outer peripheral face of this plastics central siphon 811; This rotor 83 is rotatably in conjunction with this bearing 812; Whereby, this stator 82 can drive this rotor 83 rotary works.
The plastics central siphon 811 that should have motor 8 now can adopt the one ejection formation, therefore, compared to above-mentioned motor 7 with metal central siphon 71, has easy, the easy to assembly and reduction manufacture cost and other advantages of the moulding of making; Yet, in actual process of assembling, this stator 82 also can adopt the tight fit mode in conjunction with the periphery wall of this plastics central siphon 811, can not prevent or cushion the deformed configurations design owing to have equally between this stator 82 and this plastics central siphon 811, when this stator 82 is excessively oppressed this plastics central siphon 811, because the structural strength of this plastics central siphon 811 is not as good as the metal central siphon, therefore, easier this plastics central siphon 811 that causes is out of shape.
By improving above-mentioned motor 8 issuable relevant issues with plastics central siphon, please refer to shown in Figure 3, for TaiWan, China is announced " structure-improved of DC fan bearing fixing device " patent case No. 519259; Should have an axle bed 91 by existing motor 9, this axle bed 91 is provided with a hollow annular groove 911, makes this axle bed 91 form the double-decker that is made of an interior ring 912 and outer shroud 913; Whereby, should can supply in conjunction with a bearing 92 by interior ring 912, and in these outer shroud 913 outside sheathed stator groups 93, and a baffle ring 94 is set in this hollow annular groove 911, in order to utilize this baffle ring 94 to support this outer shroud 913, preventing that this axle bed 91 from producing distortion in conjunction with the process of this stator pack 93, and further avoid excessively these bearings 92 of compressing of this axle bed 91.Yet the structure of the axle bed 91 of this existing motor 9 is formed too complicated, causes the making moulding that causes this axle bed 91 more difficult on the contrary, still has necessity of improvement.
Summary of the invention
The object of the invention provides a kind of motor, and in order to solve existing motor when assembling, its stator is excessively oppressed the problem of central siphon easily.
Another purpose of the present invention provides a kind of by easy structural design, can prevent effectively that central siphon from producing the motor of distortion.
Motor of the present invention comprises a pedestal, stator group and a rotor at least.This pedestal is provided with a central siphon, and this central siphon has a periphery wall; This stator pack is incorporated into the central siphon of this pedestal, and this stator pack has an assembly hole, forms several tight fit portions between the inboard hole wall of this assembly hole and the periphery wall of this central siphon, respectively has an adjusting play respectively between this tight fit portion; This rotor has a central shaft, and this central shaft is rotatably in conjunction with the central siphon of this pedestal.
Useful technique effect of the present invention is: motor of the present invention really can be by the easy structure design of this adjusting play, so that the function of this central siphon as the strain space to be provided, in order to effective solution motor in when assembling, this stator pack is excessively oppressed the problem of this central siphon easily, guaranteeing that this central siphon can not produce problems such as distortion, and hold concurrently and to promote the assembling convenience; Whereby, can reach the many effects such as useful life, minimizing Rotation Noise and lifting product quality that promote this motor.
Description of drawings
Fig. 1: existing assembled sectional view with motor of metal central siphon.
Fig. 2: existing assembled sectional view with motor of plastics central siphon.
Fig. 3: the assembled sectional view of another kind of existing motor.
Fig. 4: the three-dimensional exploded view of the tight fit portion of motor of the present invention and first kind of execution mode of adjusting play.
Fig. 5: the tight fit portion of motor of the present invention and first kind of execution mode of adjusting play assembled sectional view.
Fig. 6: the tight fit portion of motor of the present invention and first kind of execution mode of adjusting play vertical view cutaway drawing.
Fig. 7: the three-dimensional exploded view of the tight fit portion of motor of the present invention and second kind of execution mode of adjusting play.
Fig. 8: the tight fit portion of motor of the present invention and second kind of execution mode of adjusting play assembled sectional view.
Fig. 9: the tight fit portion of motor of the present invention and second kind of execution mode of adjusting play vertical view cutaway drawing.
Figure 10: the tight fit portion of motor of the present invention and the third execution mode of adjusting play assembled sectional view.
Figure 11: the tight fit portion of motor of the present invention and the third execution mode of adjusting play vertical view cutaway drawing.
Figure 12: the three-dimensional exploded view of the 4th kind of execution mode of the tight fit portion of motor of the present invention and adjusting play.
Figure 13: the 4th kind of execution mode of the tight fit portion of motor of the present invention and adjusting play vertical view cutaway drawing.
Figure 14: the three-dimensional exploded view when the 4th kind of execution mode of the tight fit portion of motor of the present invention and adjusting play has location notch.
Figure 15: the assembled sectional view when the 4th kind of execution mode of the tight fit portion of motor of the present invention and adjusting play has location notch.
Figure 16: motor of the present invention is as the assembled sectional view of radiator fan.
The main element symbol description:
1 pedestal, 11 central siphons, 111 periphery walls, 112 openings
113 projections, 114 protuberance sections, 115 closure, 12 bearings
121 axis holes, 13 wear plates, 14 buttons are held sheet
2 stator pack, 21 assembly holes, 211 fins, 212 ring flanges
213 location notchs, 22 silicon steel sheets, 23 coils, 24 insulating cases
3 rotors, 31 wheel hubs, 311 central shafts, 312 blades
32 permanent magnets, 4 tight fit portions, 5 adjusting plays, 6 frameworks
61 connectors, 62 air intake vents, 63 air outlets, 7 motors
71 metal central siphons, 72 shell blocks, 73 stator seats, 74 bearings
75 rotors, 8 motors, 81 pedestals, 811 central siphons
812 bearings, 82 stators, 83 rotors, 9 motors
92 bearings, 93 stator pack, 94 baffle rings
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. are described in detail below:
Please refer to shown in Fig. 4 and 5, motor of the present invention comprises a pedestal 1, stator group 2 and a rotor 3 at least.This pedestal 1 can supply in conjunction with this stator pack 2 and this rotor 3; 2 of this stator pack are in order to drive this rotor 3 rotary works.
This pedestal 1 is provided with a central siphon 11, and this central siphon 11 can be selected metal shaft pipe or plastics central siphon for use, is preferably the plastics central siphon.This central siphon 11 has a periphery wall 111, and forms an opening 112 in an end of this central siphon 11.In addition, this central siphon 11 arranges at least one bearing 12, and this at least one bearing 12 can be incorporated into the inside of this central siphon 11 via this opening 112, and in embodiment as shown in the figure, disclosing these bearing 12 quantity is one, and this bearing 12 is provided with an axis hole 121; Moreover these central siphon 11 preferable being provided with as wear plate 13 or button are held members such as sheet 14.
This stator pack 2 is incorporated into this pedestal 1, and this stator pack 2 has an assembly hole 21, and this assembly hole 21 can be stretched through for this central siphon 11.In addition, in present embodiment, this stator pack 2 is in order to drive this rotor 3 rotary works, and therefore, this stator pack 2 can be made up of several silicon steel sheets 22 (also can with several silicon steel sheets 22 are one-body molded be single individuality), several coils 23 and two insulating cases 24; Wherein respectively this silicon steel sheet 22 piles up and is formed with jointly this assembly hole 21 mutually, and this two insulating case 24 is in conjunction with two ends that are stacked as respectively this silicon steel sheet 22 of one, and respectively this coil 23 can be wound in the respectively predetermined position of this silicon steel sheet 22 and this two insulating case 24.
In more detail, as shown in Figure 6, during in conjunction with the central siphon 11 of this pedestal 1, can form several tight fit portion 4 between the inboard hole wall of this assembly hole 21 and the periphery wall 111 of this central siphon 11 in this stator pack 2, make whereby between this stator pack 2 and this central siphon 11 to be the tight fit state; In addition, equally between the periphery wall 111 of the inboard hole wall of this assembly hole 21 and this central siphon 11, respectively then has an adjusting play 5 between this tight fit portion 4 respectively.
This rotor 3 comprises a wheel hub 31 and a permanent magnet 32.This wheel hub 31 is provided with a central shaft 311, and this central shaft 311 is rotatably in conjunction with the central siphon 11 of this pedestal 1, makes can the stretch through axis hole 121 of this bearing 12 of this central shaft 311; 32 of this permanent magnets are an annular solid that is incorporated into the inboard perisporium of this wheel hub 31, and have an air gap between this permanent magnet 32 and this stator pack 2.
Motor of the present invention is when reality is used, and this stator pack 2 can produce alternating magnetic field, and by this air gap and the 32 generation effects of this permanent magnet, and then drives this rotor 3 and be rotated.
The main feature of motor of the present invention is: utilize several tight fit portions 4 that forms between the periphery wall of the inboard hole wall of this assembly hole 21 and this central siphon 11, can make this stator pack 2 be incorporated into the periphery wall of this central siphon 11 in the tight fit mode, make between this stator pack 2 and this central siphon 11 having preferable linking steady character; The more important thing is, owing to respectively have this adjusting play 5 between this tight fit portion 4 respectively, therefore, even this stator pack 2 is the tight fit state with this central siphon 11, but still can prevent excessively this central siphon 11 of compressing of this stator pack 2 really by this adjusting play 5, effectively avoiding this central siphon 11 because of direct this bearing 12 of compressing, and cause this bearing 12 to produce problems such as distortion, damage or center off normal; Moreover, when this central siphon 11 is the plastics central siphon, produce distortion because expanding with heat and contract with cold as this central siphon 11, also can utilize the cushioning effect of this adjusting play 5, can prevent excessively this central siphon 11 of compressing of this stator pack 2 equally.Generally speaking, of the present invention respectively between this tight fit portion 4 this adjusting play 5 of forming respectively, having can be for the function of this central siphon 11 as the strain space.
By the structural design concept of the invention described above motor, the tight fit portion 4 of motor of the present invention and adjusting play 5 can be following several different execution modes:
Please refer to shown in Fig. 4,5 and 6, be first kind of execution mode of this tight fit portion 4 and adjusting play 5.Wherein this tight fit portion 4 can be at least one protuberance (having the structural design of identical function as fin, protruding grain or other) of the inboard hole wall that is formed at this assembly hole 21, this central siphon 11 upwards has an outer tube diameter D in the footpath, design by this at least one protuberance, make the minimum-value aperture of this assembly hole 21 less than the outer tube diameter D of this central siphon 11, make this stator pack 2 can be incorporated into the periphery wall 111 of this central siphon 11 more closely; In addition, in present embodiment, this protuberance is fin 211 designs, this fin 211 is two (also visual demand is only selected one for use), this two fin 211 can extend axially the inboard hole wall in this assembly hole 21, this fin 211 is connected to the periphery wall 111 of this central siphon 11, and this fin 211 is with this central siphon 11 and has an axial height H on the friction tight contact-making surface, and the scope that extends axially of this adjusting play 5 is alignd with this axial height H; Therefore, this central siphon 11 is subjected to these stator pack 2 compressings and produces the position that is out of shape, and can more easily utilize this axially extended adjusting play 5 as the strain space.
Please refer to shown in Fig. 7,8 and 9, be second kind of execution mode of this tight fit portion 4 and adjusting play 5.Wherein this tight fit portion 4 can be at least one protuberance (having the structural design of identical function as bulge loop or other) of the inboard hole wall that is formed at this assembly hole 21 equally, design by this at least one protuberance, make the minimum-value aperture of this assembly hole 21 less than the outer tube diameter D of this central siphon 11, make this stator pack 2 can be incorporated into the periphery wall 111 of this central siphon 11 more closely; In addition, in present embodiment, this protuberance is ring flange 212 designs, this ring flange 212 is two (also visual demand is only selected one for use), but these two ring flanges, 212 axially-aligned are formed at the inboard hole wall of this assembly hole 21, this ring flange 212 is connected to the periphery wall 111 of this central siphon 11, and this adjusting play 5 is the both sides that are positioned at this ring flange 212; Therefore, this central siphon 11 is subjected to these stator pack 2 compressings and produces the position that is out of shape, and can utilize this adjusting play 5 as the strain space equally.
Please refer to shown in Figure 10 and 11, be the third execution mode of this tight fit portion 4 and adjusting play 5.The assembly hole 21 of this stator pack 2 is non-positive circular hole at its radial section, makes the minimum-value aperture of this assembly hole 21 less than the outer tube diameter D of this central siphon 11; Perhaps, this central siphon 11 is non-positive pipe at its radial section, makes the maximum outer tube diameter D of this central siphon 11 greater than the aperture (as shown in figure 11) of this assembly hole 21; Whereby, no matter select to make this assembly hole 21 for non-positive circular hole or this central siphon 11 under the condition of non-positive pipe, all can form two relative tight fit portions 4 as shown in the figure simultaneously, be this adjusting play 5 between these two the relative tight fit portions 4; Therefore, this central siphon 11 is subjected to these stator pack 2 compressings and produces the position that is out of shape, and can utilize this adjusting play 5 as the strain space; Moreover compared to above-mentioned first kind and second kind of execution mode, the stator pack 2 of present embodiment and the structure of central siphon 11 are simple relatively, can effectively reduce manufacturing cost.
Please refer to shown in Figure 12 and 13, be the 4th kind of execution mode of this tight fit portion 4 and adjusting play 5.Wherein this tight fit portion 4 is at least one projection 113 that is formed at the periphery wall 111 of this central siphon 11, this at least one projection 113 extends axially the periphery wall 111 in this central siphon 11, design by this at least one projection 113, make the maximum outer tube diameter D of this central siphon 11 greater than the aperture of this assembly hole 21, make this at least one projection 113 can be connected to the inboard hole wall of the assembly hole 21 of this stator pack 2, and then form this tight fit portion 4, between the periphery wall 111 of the inboard hole wall of this assembly hole 21 and this central siphon 11, the zone beyond this at least one projection 113 is this adjusting play 5; Therefore, this central siphon 11 can promote structural strength by this projection 113, can effectively prevent distortion when making this central siphon 11 be subjected to these stator pack 2 compressings, and can utilize this adjusting play 5 as the strain space equally.Moreover, compared on be set forth in this stator pack 2 assembly hole 21 form as designs such as fin 211 or ring flanges 212, present embodiment directly is formed at this projection 113 on this central siphon 11, except having the effect that promotes these central siphon 11 structural strengths, because these central siphon 11 moulding are comparatively easy, so this tight fit portion 4 simple and convenient more on making.
In more detail, shown in Figure 14 and 15, based on above-mentioned the 4th kind of execution mode, the inboard hole wall of the assembly hole 21 of this stator pack 2 can further form a location notch 213, and this location notch 213 extends axially the inboard hole wall in this assembly hole 21; In addition, this wherein projection 113 that is formed at the periphery wall 111 of central siphon 11 can be in conjunction with this location notch 213, and forms a protuberance section 114 with this projections 113 of this location notch 213 combinations, but the inboard cell wall of this this location notch 213 of protuberance section 114 butts.Whereby, can under the condition that does not influence this stator pack 2 and this central siphon 11 tight fits relation, utilize the design of this location notch 213, make this stator pack 2 finish assembling operation with this central siphon 11 easilier, so that preferable assembling convenience to be provided.
By the structural design concept of the invention described above motor, motor of the present invention also can further comprise at least one accessory structure feature as described below or its combination, and it is perfect that the function of motor of the present invention is more leveled off to, wherein:
The other end of described this central siphon 11 can form a closure 115 (as shown in Figure 4).Whereby, this closure 115 can provide as leakproof wet goods effect, and when the bonding state between this stator pack 2 and this central siphon 11 was too tight, this closure 115 can guarantee that still the deflection of the other end of this central siphon 11 is unlikely to excessive in addition.
The side surface that described closure 115 is positioned at these central siphon 11 inside can be the plane.Whereby, this central shaft 311 can easier location in assembling process, and guarantees that the perpendicularity after these central shaft 311 assemblings is preferable.
Described as Fig. 4,7 and 10 execution modes that disclose, under the condition of the function that does not influence this tight fit portion 4 and adjusting play 5, also can design designs such as the location notch 213 that has as shown in figure 14 and projection 113, detailed construction feature is same as described above repeats no more for it.Whereby, can provide preferable assembling convenience equally.
Motor of the present invention can be applicable to cooling fan structure in addition, as blast-type cooling fan or axial-flow type radiator fan.Please refer to shown in Figure 16ly, disclose motor applications of the present invention in axial-flow type radiator fan; Wherein this pedestal 1 can have the fan frame structure of an air intake vent 62 and an air outlet 63 directly with the external framework 6 of several connectors 61 (as rib or stator blade) with formation; In addition, the wheel hub 31 of this rotor 3 can radially extend several blades 312.Whereby, this radiator fan can be installed in various electronic installation or electronic instrument, and when these rotor 3 rotary works, this blade 312 can be introduced extraneous air-flow from this air intake vent 62, and this air-flow exported to a heat source position from this air outlet 63, to reach predetermined thermolysis.
By on learn, motor of the present invention really can be by the easy structure design of this adjusting play 5, so that the function of this central siphon 11 as the strain space to be provided, in order to effective solution motor in when assembling, this stator pack 2 is excessively oppressed the problem of this central siphon 11 easily, guaranteeing that this central siphon 11 can not produce problems such as distortion, and hold concurrently and to promote the assembling convenience; Whereby, can reach the many effects such as useful life, minimizing Rotation Noise and lifting product quality that promote this motor.
Claims (4)
1. motor is characterized in that comprising:
A pedestal is provided with a central siphon, and this central siphon has periphery wall;
A stator pack, be incorporated into the central siphon of this pedestal, this stator pack has several silicon steel sheets, respectively this silicon steel sheet stacks and forms jointly an assembly hole mutually, form several tight fit portions between the inboard hole wall of this assembly hole and the periphery wall of this central siphon, respectively have the adjusting play respectively between this tight fit portion; And
A rotor has a central shaft, and this central shaft is in conjunction with the central siphon of this pedestal;
Wherein, this tight fit portion is at least one protuberance that is formed at the inboard hole wall of this assembly hole, this protuberance is the ring flange that is formed at the inboard hole wall of this assembly hole, this ring flange is connected to the periphery wall of this central siphon, this adjusting play is positioned at the both sides of this ring flange, this central siphon upwards has an outer tube diameter in the footpath, and the minimum-value aperture of this assembly hole is less than the outer tube diameter of this central siphon.
2. according to the described motor of claim 1, it is characterized in that: the other end of this central siphon forms a closure.
3. according to the described motor of claim 2, it is characterized in that: the side surface that this closure is positioned at this central siphon inside is the plane.
4. according to the described motor of claim 1, it is characterized in that: this pedestal forms the fan frame structure with an air intake vent and an air outlet with the external framework of several connectors, and this rotor radial extends several blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910249521 CN102111022B (en) | 2009-12-23 | 2009-12-23 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910249521 CN102111022B (en) | 2009-12-23 | 2009-12-23 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102111022A CN102111022A (en) | 2011-06-29 |
| CN102111022B true CN102111022B (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910249521 Active CN102111022B (en) | 2009-12-23 | 2009-12-23 | Motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102111022B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355076A (en) * | 2011-09-19 | 2012-02-15 | 福建闽光电机制造有限公司 | Protecting jacket of collecting ring of motor |
| TWI659590B (en) * | 2017-11-15 | 2019-05-11 | 建準電機工業股份有限公司 | Stator engagement structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394371Y (en) * | 1999-09-29 | 2000-08-30 | 建准电机工业股份有限公司 | Fan motor |
| CN201178361Y (en) * | 2008-03-17 | 2009-01-07 | 建凖电机工业股份有限公司 | Fixture structure of motor stator |
| CN201601554U (en) * | 2009-12-23 | 2010-10-06 | 建准电机工业股份有限公司 | Motor |
-
2009
- 2009-12-23 CN CN 200910249521 patent/CN102111022B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394371Y (en) * | 1999-09-29 | 2000-08-30 | 建准电机工业股份有限公司 | Fan motor |
| CN201178361Y (en) * | 2008-03-17 | 2009-01-07 | 建凖电机工业股份有限公司 | Fixture structure of motor stator |
| CN201601554U (en) * | 2009-12-23 | 2010-10-06 | 建准电机工业股份有限公司 | Motor |
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| Publication number | Publication date |
|---|---|
| CN102111022A (en) | 2011-06-29 |
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Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Patentee after: Jianzhun Electric Motor Industry Co., Ltd. Address before: Are China Taiwan Lingya Kaohsiung No. 120 12 floor 1 Patentee before: Jianzhun Electric Motor Industry Co., Ltd. |