CN85106367B - Small-sized synchronous motor - Google Patents
Small-sized synchronous motor Download PDFInfo
- Publication number
- CN85106367B CN85106367B CN85106367A CN85106367A CN85106367B CN 85106367 B CN85106367 B CN 85106367B CN 85106367 A CN85106367 A CN 85106367A CN 85106367 A CN85106367 A CN 85106367A CN 85106367 B CN85106367 B CN 85106367B
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- iron core
- electric machine
- motor
- magnetic pole
- machine casing
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to a small-sized synchronous motor which uses a gear box of a gear mechanism in the small-sized synchronous motor as an iron core. The periphery of the iron core is provided with a plurality of supporting columns, and then the peripheral surfaces of the supporting columns are used as pressing-in surfaces inserted in a motor casing. The height of each supporting column is formed by using the heights of a box cover and the iron core as a reference surface of a certain standard. Therefore, when the gear mechanism is assembled in the motor casing, the iron core can not be pressed in the motor casing in the way of the whole peripheral surface, and the supporting columns can be simply inserted under the state of light press. Thus, the abnormal deformation of the motor casing and the iron core can be prevented, and the accuracy of a supporting shaft and a hole position of a gear system can be kept in the way of high accuracy.
Description
The present invention is the improvement of the small synchronous motor internal structure of relevant band decelerator.
Fig. 1 is extremely shown in Figure 3 to be well-known small synchronous motor in the past.
Small synchronous motor shown in Fig. 1 is the integral type synchronous machine that is combined into by electric machine 7 and gear mechanism 11.Electric machine 7 is made of the magnet exciting coil in electric machine casing 3 and the housing 12, rotor 4 and unshakable in one's determination 6.Wherein, 2 bendings of first magnetic pole are 3 li of housings, and second magnetic pole 5 invests on unshakable in one's determination 6.Gear mechanism 11 is pressed into lid 9 and is constituted by cup-shaped gear box 8, and be equipped with and rotor 4 meshed gears groups 10 its inside.
Above-mentioned motor is formed by electric machine 7 and 11 two component-assembled of gear mechanism, thereby motor thickness is bigger, and because of electric machine casing 3 and gear box 8 are assembled into two parts respectively, has then increased the quantity of parts again.
Small synchronous motor shown in Figure 2 is made of electric machine casing 3 and the gear mechanism 11 that is pressed into housing 3.3 li of electric machine casings rotor 4 and magnet exciting coil 12 are arranged; Second magnetic pole 5 that a part by unshakable in one's determination 6 constitutes is attached on the gear mechanism 11.This motor middle gear case 8 double as iron cores 6 usefulness, thus make the motor slimming with the quantity that reduces parts.
But, because the whole peripheral wall surfaces of above-mentioned motor employing unshakable in one's determination 6 is pressed into the structure of the inner headed face of electric machine casing 3, when being pressed into, iron core 6 and electric machine casing 3 just produce distortion, the hole of the bolster 16 of gear train 10 also can produce displacement, and like this, gear train 10 just can produce the engagement noise.
Small synchronous motor shown in Figure 3, its electric machine casing is equipped with rotor 4 and magnet exciting coil 12 for 3 li, after the iron core 6 that bolster 16 is housed is pressed into electric machine casing 3, and the gear train 10 of packing in its back-end, lid 9 with press cooperate be pressed into electric machine casing 3 after, its internal mechanism is fixed.For preventing iron core 6 distortion, its cylindrical will carry out deep-draw processing usually, and whole periphery wall becomes the face of being pressed into.
But this small synchronous motor owing to carry out deep-draw processing, is offset the axial line and the cylindrical axial line of second magnetic pole 5 of iron core 6 formations, thereby the revolving property of rotor 4 is degenerated.On the other hand, deep-draw processing must have press-through die, and this has just increased manufacturing cost.And, being pressed into 6 o'clock unshakable in one's determination, electric machine casing 3 is yielding, and when determining unshakable in one's determination 6 gyrobearing by assembling jig, because the quality of fit of bolster 16 and lid 9 reduces, gear train 10 just produces problems such as engagement noise.Department of assembly's height of gear train 10, promptly the distance between iron core 6 and the lid 9 determines that by being pressed into anchor clamps deviation is very big in this procedure, can make gear shaft exceed normal range (NR) to rocking; Otherwise or, rock hour, produce the phenomenon of rotor 4 stalls.
Therefore, the purpose of this invention is to provide a kind of small synchronous motor, when making its slimming, guarantee the bolster and position, the hole precision thereof of gear mechanism, and guarantee correct assembling position between electric machine casing, iron core and the lid.
The structure that the present invention takes is, is provided with a plurality of pillars at the peripheral part unshakable in one's determination of the casing of double as gear mechanism, and the periphery of pillar is pressed in the electric machine casing as being pressed into face, and the last plane of pillar as highly datum level between qualification lid and the iron core.Therefore, in the time of in electric machine casing that gear mechanism is packed into, be not that the full perisporium of iron core is pressed into electric machine casing, but can be simply a plurality of pillars with press-fit manner, the casing of packing into.So just energy prevents the abnormal deformation of motor case and iron core, and can guarantee the bolster of gear mechanism and the higher position precision of position, hole thereof.
Moreover as mentioned above, the height of pillar is a calibrated altitude, so when unshakable in one's determination and lid gently press (being pressed into palm) to cooperate, can configure suitable axial spacing in gear train, just can not produce drone toot the sound and the engagement noise of rotor.
Specify structure of the present invention with illustrated embodiment below.
The structure of the present invention's small synchronous motor 1 such as Fig. 4 are to shown in Figure 10.The same with former motor, adopt cup-shaped electric machine casing 3,3 li of housings are equipped with rotor 4 and 12,4 first magnetic poles 2 of magnet exciting coil and just are bending from the bottom of electric machine casing 3, and are relative with the cylindrical of rotor 4.Also be provided with motor mounting part 33(in the electric machine casing 3 except that Fig. 6, all omitted).
On the other hand, on lid 9, be provided with the recess 18 that cooperates with the protruding 14a of pillar 14, support the hole 19 of the rotating shaft of bolster 16 and support rotor 4, and the dead eye 21 that bears overhanging motor output shaft 20.
After gear 17 was enclosed within on the bolster 16, lid 9 cooperated with the lug boss 14a of recess 18 and pillar 14, was fixed behind lid 9 and pillar 14 location.At this moment, the head of bolster 16 cooperates with hole 19.Therefore, being contained in the gear mechanism 11 in the parts of being made up of iron core 6 and lid 9, is with its inner bolster 16, makes gear train 10 and rotor 4 engagements.Like this, the height of the datum level 15 of pillar 14, the spacing during 9 assemblings of substrate 13 promptly unshakable in one's determination and lid, it is last just to be limited at the required optimum distance of gear mechanism 11.
The thickness t of drum stand 22 flange 22a on one side is littler than former thickness T, forms the protuberance 24 that reinforcement is arranged on the relative flange 22a in hole 23 with the magnetic pole of electric machine casing 3, and it cooperates with magnetic pole formation hole 23.In addition, the structure of magnetic pole 2b on electric machine casing 3 of magnetic pole 2a that is just migrating in this example and counter-rotating usefulness makes them have different rotatable phases, according to user's requirement, and all flexible use of arbitrary magnetic pole.
Between electric machine casing 3 and lid 9, terminal box 25 also is housed, the side of electric machine casing 3 is provided with the opening portion 34 that terminal box 25 usefulness are installed, and on this opening portion 34, terminal box 25 is housed, and terminal box 25 is fixed in binding post 26 outstanding its sides.Being fixed on the binding post 26 on the terminal box and the not end of magnet exciting coil 12 is connected.The thickness of flange 22a of supposing the drum stand 22 of former micro-machine 1 is T, micro-machine of the present invention, owing to adopted said structure, the height of drum stand department of assembly is just few (T-t), is H-(T-t).
As shown in Figure 6, the reinforcement 24 of projection forms hole 23 with magnetic pole and cooperates, the location when this facilitates assembling drum stand 22.More because of they cooperatively interact, protuberance 24 is filled up at magnetic pole and is formed 23 li in hole.
Fig. 7 and Fig. 8 represent the field structure of employed electric machine casing 3 in the micro-machine of the present invention.Promptly in the bottom surface of electric machine casing 3, a vertical angles magnetic pole 2c relatively is located on the line in the quarterline of central angle; The a pair of not isogonism magnetic pole 2b of a pair of not isogonism magnetic pole 2a that is just migrating and counter-rotating usefulness is a baseline with another central angle bisector, and is staggered relatively, makes with modes such as punching presses.When electric machine casing is just migrated, as shown in Figure 7, isogonism magnetic pole 2c and just migrating not that isogonism magnetic pole 2a roughly curves right angle orientation.When electric machine casing is done the counter-rotating time spent, as shown in Figure 8, isogonism magnetic pole 2c and counter-rotating are bent with isogonism magnetic pole 2b not.
The used drum stand 22 of the present invention as shown in figure 10, binding post wound portion 28 is located on the flange 22b, the upper end of the flange 22a relative with flange 22b promptly is cut into circular-arcly with binding post wound portion 28 relative parts, forms recessed edge 29.The lateral surface of this recessed edge 29 has formed ladder thin-walled 30, and its thickness is about 1/2 of thickness of flange.
As shown in Figure 9, when this drum stand is contained in the electric machine casing 3, binding post wound portion 28 and 31 coverings of ladder thin-walled 30 insulated drum stand lids.The wall of the drum stands lid 31 relative with ladder thin-walled 30 also forms ladder thin-walled 32, and the ladder thin-walled 30,32 of flange 22a and drum stand lid 31 is entrenched togather mutually.
The following describes the effect and the effect of above-mentioned example.
In the present invention, adorning gear train 10 in the parts that iron core 6 and lid 9 are formed, constitute gear mechanism 11; When gear mechanism 11 is packed in the electric machine casing 3, operate extremely easy.And because of 6 double as gear housing usefulness unshakable in one's determination, this part thickness just can reduce.Also the wall because of gear mechanism 11 is not continuously whole periphery wall, only be to constitute by a plurality of pillars 14, when so gear mechanism 11 inserts electric machine casing 3, electric machine casing 3 and gear mechanism 11 do not bear big pressure, can insert the abnormal deformation that * has prevented electric machine casing 3 and unshakable in one's determination 6 with light pressure.Therefore, the mutual alignment precision in bolster 16 and hole 19 thereof is higher; Can also prevent the journal offset of second magnetic pole 5.More because of the assembly building of height one lid 9 of the datum level 15 of pillar 14 and iron core substrate 13 apart from being restricted to optimum certain value, promptly the end play of gear 17 just can keep optimum value, grating of gears can not take place, promptly gears engaged is extremely steadily flexible.
Be the example that is oppositely arranged 2 pillars 14 in the above-mentioned example, the pillar 14 more than 2 also can be set.
In the above-mentioned example, the coupling part of pillar 14 is protuberance 14a, and the mating part on the lid 9 is a recess 18, but also can be provided with conversely.When only considering to keep the spacing of lid 9 and iron core substrate 13, also the datum level 15 of pillar 14 can be made flat shape, and not establish protuberance 14a.
One side flange 22a that has represented drum stand 22 in the above-mentioned example makes thin-walled, but also can all make thin-walled to flange 22a, the 22b on both sides, form the relative part in hole 23 with magnetic pole and make protuberance 24, the protuberance 24 of flange 22a is cooperated with the magnetic pole formation hole 23 of first stator 3; The protuberance of flange 22b is cooperated with hole on second stator 6, thereby can make the thickness of micro-machine 1 subtract thinlyyer.
The terminal box of representing in the above-mentioned example 25 has external cabling post 26, but also can not establish this external cabling post 26, in the inside of terminal box 25, the lead that external connection is used is directly connected to binding post wound portion 28 to be formed on the part of one, promptly also can be suitable for so-called lead-type coiling group structure.
Structure of the present invention is also formed the structure of the electric machine iron core of one applicable to drum stand 22 and external cabling post 27-motor binding post.
As mentioned above, therefore the present invention has reduced number of packages amount in addition owing to double as gear housing usefulness unshakable in one's determination, and can reduce the cost of manufacture of small synchronous motor and reduce motor thickness.
Also the cooperation because of gear mechanism and electric machine casing is the sub-fraction of iron core periphery, and cooperates gently to compress into row, so avoided the abnormal deformation of electric machine casing and lid, guarantees the bolster of gear train and the relative positional accuracy in hole thereof.
The height of gear installation portion, i.e. the spacing of iron core substrate and lid is limited by the datum level height of pillar, and be not subjected to about assembling jig institute, just can be guaranteed in the management of part in addition from iron core, easy assembly work, and reduced the deviation that causes in the assembly process.
The simple declaration of accompanying drawing
Fig. 1 to Fig. 3 represents the sectional elevation of former small synchronous motor major part; Fig. 4 is the AA sectional drawing of Fig. 6, represents the internal structure of small synchronous motor of the present invention; Fig. 5 is gear mechanism dismounting, the installation diagram of motor of the present invention; Fig. 6 is the bottom plan view after the mark part among Fig. 4 is removed, the state that the protuberance of expression drum stand and electric machine casing cooperate; Fig. 7 represents the plane graph under the state that electric machine casing does just to migrate; Fig. 8 is that electric machine casing is made the plane graph under the state of counter-rotating usefulness; Fig. 9 is a micro-machine winding construction sectional drawing of the present invention; Figure 10 is the drum stand end view of Fig. 9.
1 ... small synchronous motor; 2 ... first magnetic pole; 3 ... electric machine casing; 5 ... second magnetic pole; 6 ... iron core; 9 ... lid; 11 ... gear mechanism; 12 ... magnet exciting coil; 13 ... the iron core substrate; 14 ... pillar; 15 ... datum level; 20 ... output shaft
Claims (4)
1, small-sized synchronous motor, it comprises: constitute the cup motor casing with opposed first magnetic pole of rotor, constitute the annular core substrate of second magnetic pole relative within it on the disc with rotor, cover the cabinet cover of above-mentioned motor field frame, place and make rotor and output shaft meshed gears group in the described motor case, a notch portion is arranged on the motor case sidewall,, the invention is characterized in order to grip the terminal board that binding post is used:
-be provided with a plurality of pillars at the peripheral part of described iron core substrate, make it with described cabinet cover contact or engagement,
-described a plurality of pillars are a kind of like this contact condition with the inwall of described casing, and consequently described pillar stands to leave the distortion a little of described inwall,
-described pillar keeps the suitable distance between described casing and described iron core substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85106367A CN85106367B (en) | 1985-08-24 | 1985-08-24 | Small-sized synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85106367A CN85106367B (en) | 1985-08-24 | 1985-08-24 | Small-sized synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106367A CN85106367A (en) | 1987-03-18 |
| CN85106367B true CN85106367B (en) | 1988-09-07 |
Family
ID=4795039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85106367A Expired CN85106367B (en) | 1985-08-24 | 1985-08-24 | Small-sized synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85106367B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988570A (en) * | 2017-06-01 | 2018-12-11 | 精工电子有限公司 | Gear-box, driving device and electronic equipment |
-
1985
- 1985-08-24 CN CN85106367A patent/CN85106367B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988570A (en) * | 2017-06-01 | 2018-12-11 | 精工电子有限公司 | Gear-box, driving device and electronic equipment |
| CN108988570B (en) * | 2017-06-01 | 2021-06-25 | 精工电子有限公司 | Gear box, driving device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85106367A (en) | 1987-03-18 |
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| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
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