CN201393161Y - Micro synchronous motor - Google Patents

Micro synchronous motor Download PDF

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Publication number
CN201393161Y
CN201393161Y CN200920115548U CN200920115548U CN201393161Y CN 201393161 Y CN201393161 Y CN 201393161Y CN 200920115548 U CN200920115548 U CN 200920115548U CN 200920115548 U CN200920115548 U CN 200920115548U CN 201393161 Y CN201393161 Y CN 201393161Y
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CN
China
Prior art keywords
stator
shaped
rotor
synchronous motor
coil block
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Expired - Fee Related
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CN200920115548U
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Chinese (zh)
Inventor
虞南生
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NINGBO CITY TV SET ELEMENT FACTORY
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NINGBO CITY TV SET ELEMENT FACTORY
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Priority to CN200920115548U priority Critical patent/CN201393161Y/en
Application granted granted Critical
Publication of CN201393161Y publication Critical patent/CN201393161Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a micro synchronous motor, which comprises a seat body, a rotor and a stator, wherein the stator is assembled by a left stator and a right stator, the middle portion of the seat body is provided with an inner concave type cavity body, the bottom surface of the inner concave type cavity body is upwardly provided with a central fixed shaft and a driving fixed shaft, and the driving fixed shaft and the rotor are penetrated, inserted, matched and connected. The central fixed shaft is inserted and matched with an output gear, the output gear and the rotor are driven and matched, an eccentric ring hole is arranged between the left stator and the right stator, and the eccentric ring hole and the rotor are eccentrically arranged. The inner concave type cavity body is embedded with a coil component, the middle portion of the coil component is inserted with a magnetic conductive tablet, and the two ends of the magnetic conductive tablet are correspondingly connected with the left stator and the right stator through conductive magnetic. The seat body of an inner cavity is provided with the rotor, the stator and the coil component, the design structure thereof is compact, the assembly hierarchy of various parts which are arranged in the seat body is excellent, and the dismounting and the maintenance are convenient and rapid. Through using the principle that same magnetic poles are mutually observed and opposite magnetic poles are mutually repelled, rotors achieve to rotate constantly. A connecting position of the stator and the coil component is increased with the magnetic conductive tablet, thereby increasing the conductive magnetic effect.

Description

Small synchronous motor
Technical field
The utility model relates to the technical field of micromotor, particularly small synchronous motor.
Background technology
Common small synchronous motor all is made up of stator, rotor, coiled wire-wound coil three parts, the orienting device of mechanism generally adopts round sealed shape, all the time be in Frotteurism during the operation of this shape, not only produce noise, and loss mechanical energy, reduce useful life; And traditional small synchronous motor speed reducing ratio is smaller, and supporting with it product will increase what reduction gearing and assembly technology poor reliability, and supporting small product size comparatively huge.
As applying on December 16th, 1997, publication number is that CN1220512A, application number are that 97118796.7 the disclosed a kind of micromotor of Chinese invention patent just belongs to this kind, it is made up of driving, orientation, three parts of slowing down, the stator pole piece of drive part is made as asymmetric circular arc, groove and tongue, make air gap inhomogeneous, change the Distribution of Magnetic Field situation; Bearing portion and deceleration part structural design are comparatively compact, reasonable; Though it has improved startability, the output torque of micromotor than before, reduce noise, further dwindle portion's body volume.But find that in making and studying bearing portion is designed to round sealed, and has limited the assembly potentiality of electrical micro-machine self, noise, loss and volume all have increasing; In the real work, utilize the cooperation between the gear of electrical micro-machine, the shape of appropriate change gear teeth can play orientation.
Be that the Chinese utility model patent " motor " (notification number is CN201174646Y) of ZL200820084621.2 is exactly this type of design as the patent No. for another example; Comprise housing and be located at housing interior rotor, stator, shaped framework coil.Stator comprises the left stator that bends, right stator, and left and right stator is located in the housing symmetrically, and left and right stator respectively is provided with five utmost points, and the distribution that is centrosymmetric at grade, the straight-bar overlaid of left and right stator and pass shaped framework coil.Rotor is located in the cavity that left and right stator surrounds, and the external diameter of rotor is 8mm～14mm, and 10 utmost points are arranged behind the magnetizing.Also be provided with the middle clamp plate that has through hole in the housing, the increase of this middle clamp plate easily causes the structural complexity of whole erection body, if middle clamp plate exists scale error or when distortion, has improved manufacture difficulty; Left and right stator and shaped framework coil adopt the directly overlapping mode that wears, and it causes the loose contact of left and right stator magnetic conduction.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of compact conformation, dismounting to safeguard the small synchronous motor convenient, that design principle is simple and direct and magnetic conduction is effective.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: small synchronous motor, comprise pedestal, rotor and stator, this stator is equipped with by left stator and right stator to be formed, be shaped on the inner concave shape cavity in the middle of the pedestal, inner concave shape cavity bottom surface upwards is shaped on central fixed shaft and drives fixed axis, and this driving fixed axis runs through inserting with rotor and is connected; Be inserted with output gear on the central fixed shaft, and this output gear cooperates with the rotor transmission; Be shaped on the eccentric annular ring hole of two grooves between left side stator and the right stator, this off-centre annular ring hole and rotor eccentricity configuration; The inner concave shape cavity is embedded with coil block, and the centre of this coil block is inserted with magnetic conduction sheet, and this magnetic conduction sheet two ends correspondence is connected with left stator, right stator magnetic conduction.
The measure of taking also comprises:
Above-mentioned left stator is made of the L shaped left pole piece stack of two 1 millimeters thick, is shaped on square hole in the middle of the above-mentioned coil block, and should be connected with the square hole inserting of coil block by left side pole piece.
Above-mentioned right stator is made of the L shaped right pole piece stack of two 1 millimeters thick, and should right side pole piece be connected with the square hole inserting of above-mentioned coil block.
The square hole of above-mentioned coil block also is connected with the magnetic conduction sheet inserting, and corresponding and above-mentioned left pole piece, the right pole piece in these magnetic conduction sheet two ends fitted.
Above-mentioned left pole piece opposite side is shaped on left semi-ring circle, and correspondingly, above-mentioned right pole piece opposite side also is shaped on right semi-ring circle, and should right side semi-ring circle and left semi-ring circle be paired into above-mentioned eccentric annular ring hole.
Be shaped on two symmetrically arranged left grooves on the above-mentioned left semi-ring circle inside edge, correspondingly, also be shaped on two symmetrically arranged right grooves on the above-mentioned right semi-ring circle inside edge.
Be shaped on left location hole on above-mentioned left semi-ring circle inside edge and the panel between the left stator outer edge, correspondingly, also be shaped on right location hole on above-mentioned right semi-ring circle inside edge and the panel between the right stator outer edge.
Above-mentioned output gear bottom surface is equipped with orienting piece, and this orienting piece connects in the groove of duplex output.
Above-mentioned output gear is a duplicate gear, also is shaped on the gear mass of the directed muscle of two bands on the rotor correspondingly, and the gear wheel engaged transmission of this gear mass and duplicate gear.
Above-mentioned output gear top also is shaped on the 3rd gear mass; Be connected with lead on the above-mentioned coil block.
Compared with prior art, stator of the present utility model is equipped with by left stator and right stator to be formed, and is shaped on the inner concave shape cavity in the middle of the pedestal, and inner concave shape cavity bottom surface upwards is shaped on central fixed shaft and drives fixed axis, and this driving fixed axis runs through inserting with rotor and is connected; Be inserted with output gear on the central fixed shaft, and this output gear cooperates with the rotor transmission; Be shaped on eccentric annular ring hole between left side stator and the right stator, this off-centre annular ring hole and rotor eccentricity configuration; The inner concave shape cavity is embedded with coil block, and the centre of this coil block is inserted with magnetic conduction sheet, and this magnetic conduction sheet two ends correspondence is connected with left stator, right stator magnetic conduction.Advantage of the present utility model is: outstanding orienting piece function, and its elasticity is linked and packed simply, and frictional force is little, and processing technology is simple.Pedestal at an internal cavity is provided with rotor, stator and coil block, its project organization compactness; The equipped level of built-in each part of pedestal is good, dismounting and safeguard convenient; Utilization realizes the lasting rotation of rotor with the principle that magnetic pole is inhaled mutually, different pole repels each other; Utilize the meshed transmission gear principle, to output gear, its principle highly versatile is easily made with the transmission of power of rotor; Two stators that divide chip architecture, equipped quick with coil block, and easily change; Set up magnetic conduction sheet at stator and coil block junction, the elongated flat-shaped body of this magnetic conduction sheet, left stator, right stator design become flat, and its left stator, right stator connect simple with magnetic conduction sheet and coil block; Left side stator, right stator are formed by stacking by 1 millimeter thickness materials processing moulding, and processing technology is simpler, and manufacturing cost descends, and performance is more reliable.
Description of drawings
Fig. 1 is the equipped floor map of the utility model embodiment;
Fig. 2 is vertical cross-sectional schematic of Fig. 1;
Fig. 3 is the Plane Installation schematic diagram of equipped pedestal of the utility model embodiment and stator;
Fig. 4 is vertical cross-sectional schematic of Fig. 3;
Fig. 5 is the floor map the during pairing of left stator and right stator among Fig. 1;
Fig. 6 is the floor map of magnetic conduction sheet among Fig. 1;
Fig. 7 is the floor map of orienting piece among Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
To shown in Figure 7, figure grade is described as follows: pedestal 1, inner concave shape cavity 11, central fixed shaft 12 as Fig. 1, drive fixed axis 13, rotor 2, output gear 3, orienting piece 4, coil block 5, magnetic conduction sheet 6, left stator 7, left pole piece 71, left side location hole 72, left semi-ring circle 73, left groove 74, lead 8, right stator 9, right pole piece 91, right location hole 92, right semi-ring circle 93, right groove 94, eccentric annular ring hole 10.
The utility model embodiment, small synchronous motor, comprise pedestal 1, rotor 2 and stator, this stator is equipped with by left stator 7 and right stator 9 to be formed, be shaped on inner concave shape cavity 11 in the middle of the pedestal 1, inner concave shape cavity 11 bottom surfaces upwards are shaped on central fixed shaft 12 and drive fixed axis 13, and this driving fixed axis 13 runs through inserting with rotor 2 and is connected; Be inserted with output gear 3 on the central fixed shaft 12, and this output gear 3 cooperates with rotor 2 transmissions; Be shaped on eccentric annular ring hole 10 between left side stator 7 and the right stator 9, this off-centre annular ring hole 10 and rotor 2 eccentric configurations; Inner concave shape cavity 11 is embedded with coil block 5, and the centre of this coil block 5 is inserted with magnetic conduction sheet 6, and this magnetic conduction sheet 6 two ends correspondence is connected with left stator 7, right stator 9 magnetic conductions.
Present embodiment is achieved in that left stator 7 and left pole piece 71 generally be made up of the permalloy of high permeability; Rotor 2 permanent magnets are to be made by the RCo5 magnet steel of high-coercive force Hc and high energy product, and permanent magnet radially saturation magnetization becomes five pairs of magnetic poles, and coil block 5 is to be wound on the iron core of permalloy system with thinner high strength color painting wire.General pedestal 1 is a round.
Left side stator 7 is made of L shaped left pole piece 71 stacks of two 1 millimeters thick, is shaped on square hole in the middle of the coil block 5, and should be connected with the square hole inserting of coil block 5 by left side pole piece 71.Right stator 9 is made of L shaped right pole piece 91 stacks of two 1 millimeters thick, and should be connected with the square hole inserting of coil block 5 by right side pole piece 91.
The square hole of coil block 5 also is connected with magnetic conduction sheet 6 insertings, and these magnetic conduction sheet 6 two ends are corresponding and left pole piece 71, right pole piece 91 are fitted.Left side pole piece 71 opposite sides are shaped on left semi-ring circle 73, and correspondingly, right pole piece 91 opposite sides also are shaped on right semi-ring circle 93, and should be paired into eccentric annular ring hole 10 with left semi-ring circle 73 by right side semi-ring circle 93.
A left side is shaped on two symmetrically arranged left grooves 74 on semi-ring circle 73 inside edges, correspondingly, also is shaped on two symmetrically arranged right grooves 94 on right semi-ring circle 93 inside edges.Be shaped on left location hole 72 on the panel between semi-ring circle 73 inside edges, a left side and left stator 7 outer edges, correspondingly, also be shaped on right location hole 92 on the panel between right semi-ring circle 93 inside edges and right stator 9 outer edges.
Output gear 3 bottom surfaces are equipped with orienting piece 4, and this orienting piece 4 connects in the groove of duplex output.
Output gear 3 is duplicate gears, also is shaped on the gear mass of the directed muscle of two bands on the rotor 2 correspondingly, and the gear wheel engaged transmission of this gear mass and duplicate gear 3.Output gear 3 tops also are shaped on the 3rd gear mass; Be connected with lead 8 on the coil block 5.
The operation principle of present embodiment is as described below:
When electric current flow through coil block 5, coil block 5 just produced magnetic field, surveyed by right hand method and just can differentiate the polarity of the magnetic field that produces in this coil block 5.Left stator 7, right stator 9 stators that are inserted in the middle of the coil block 5 this moment just are magnetized.Because eccentric annular ring hole 10 circular arcs of left stator 7, right stator 9 are concentric, at this moment the magnetic axis of rotor 2 overlaps fully with the magnetic axis of left stator 7, right stator 9, the amount of force equal direction of phase mutual magnetic field is opposite, and gives the center of the active force of rotor 2 by axle, so rotor 2 can not rotate.
The structure of present embodiment mainly contains left stator 7, right stator 9, rotor 2 and coil block 5 etc. and partly forms.The eccentric annular ring hole 10 that left side stator 7, right stator 9 are synthesized is concentric with rotor 2, is shaped on two left grooves 74 and right groove 94 grooves respectively at the left semi-ring circle 73 of left stator 7, the right semi-ring circle 93 of right stator 9.
Coil block 5 and left stator 7, right stator 9, rotor 2 constitutes the closed magnetic circuit of motor.Owing at the left semi-ring circle 73 of left stator 7, the right semi-ring circle 93 of right stator 9 two left grooves 74 and right groove 94 are arranged respectively, thereby have just formed the inhomogeneities of working gas gap between left stator 7, right stator 9 and the rotor 2.When not having exciting curent in the coil block 5,2 transfixions of rotor, rotor 2 magnetic axises are stabilized on the position of motor air gap magnetic resistance minimum, can think, rotor 2 magnetic axises with left stator 7, left groove 74 and the perpendicular air-gap reluctance minimum that is of right groove 94 line of symmetries on the right stator 9, when having exciting curent to pass through in the coil block 5, left stator 7 is just magnetized in coil block 5 magnetic fields, the iron core of right stator 9, because the inhomogeneities in motor gas-gap magnetic field, make rotor 2 magnetic axises and the left stator 7 of motor, the magnetic axis of right stator 9 does not overlap, both have an angle, are called as the starting angle.According to the polar repulsion of magnetic pole, the action principle that heteropolarity is inhaled mutually, the N utmost point of the N utmost point repulsion rotor of left stator 7, right stator 9, the S utmost point of attraction rotor; The S utmost point of the S utmost point repulsion rotor 2 of left side stator 7, right stator 9, the N utmost point of attraction rotor 2.Two thrusts that are being subjected on the rotor and the effect of two suction, the torque that these four active forces produce, direction is identical, and rotor 2 is against the sun rotated, and motor can be realized self-starting like this.
Advantage of the present utility model is: the pedestal at an internal cavity is provided with rotor, stator and coil block, its project organization compactness; The equipped level of built-in each part of pedestal is good, dismounting and safeguard convenient; Utilization realizes the lasting rotation of rotor with the principle that magnetic pole is inhaled mutually, different pole repels each other; Utilize the meshed transmission gear principle, to output gear, its principle highly versatile is easily made with the transmission of power of rotor; Two stators that divide chip architecture, equipped quick with coil block, and easily change; Set up magnetic conduction sheet at stator and coil block junction, the elongated flat-shaped body of this magnetic conduction sheet, it is connected simply with stator, and has strengthened the magnetic conduction effect.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims (10)

1, small synchronous motor, comprise pedestal (1), rotor (2) and stator, described stator is equipped with by left stator (7) and right stator (9) to be formed, be shaped on inner concave shape cavity (11) in the middle of the described pedestal (1), it is characterized in that: described inner concave shape cavity (11) bottom surface upwards is shaped on central fixed shaft (12) and drives fixed axis (13), and this driving fixed axis (13) runs through inserting with described rotor (2) and is connected; Be inserted with output gear (3) on the described central fixed shaft (12), and this output gear (3) cooperates with described rotor (2) transmission; Be shaped on eccentric annular ring hole (10) between described left stator (7) and the right stator (9), this off-centre annular ring hole (10) and the eccentric configuration of described rotor (2); Described inner concave shape cavity (11) is embedded with coil block (5), and the centre of this coil block (5) is inserted with magnetic conduction sheet (6), and this magnetic conduction sheet (6) two ends correspondence is connected with described left stator (7), right stator (9) magnetic conduction.
2, small synchronous motor according to claim 1, it is characterized in that: described left stator (7) is made of L shaped left pole piece (71) stack of two 1 millimeters thick, be shaped on square hole in the middle of the described coil block (5), and should be connected with the square hole inserting of described coil block (5) by left side pole piece (71).
3, small synchronous motor according to claim 2 is characterized in that: described right stator (9) is made of L shaped right pole piece (91) stack of two 1 millimeters thick, and should be connected with the square hole inserting of described coil block (5) by right side pole piece (91).
4, small synchronous motor according to claim 3, it is characterized in that: the square hole of described coil block (5) also is connected with described magnetic conduction sheet (6) inserting, and this magnetic conduction sheet (6) two ends are corresponding and described left pole piece (71), right pole piece (91) are fitted.
5, small synchronous motor according to claim 4, it is characterized in that: described left pole piece (71) opposite side is shaped on left semi-ring circle (73), correspondingly, described right pole piece (91) opposite side also is shaped on right semi-ring circle (93), and should be paired into described eccentric annular ring hole (10) with left semi-ring circle (73) by right side semi-ring circle (93).
6, small synchronous motor according to claim 5, it is characterized in that: described left semi-ring circle (73) is shaped on two symmetrically arranged left grooves (74) on the inside edge, correspondingly, also be shaped on two symmetrically arranged right grooves (94) on described right semi-ring circle (93) inside edge.
7, small synchronous motor according to claim 6, it is characterized in that: be shaped on left location hole (72) on the panel between described left semi-ring circle (73) inside edge and left stator (7) outer edge, correspondingly, also be shaped on right location hole (92) on the panel between described right semi-ring circle (93) inside edge and right stator (9) outer edge.
8, small synchronous motor according to claim 7 is characterized in that: the elasticity lotus root that described output gear (3) bottom surface is equipped with unidirectional opening connects orienting piece (4), and this orienting piece (4) connects in the groove of duplex output.
9, small synchronous motor according to claim 8, it is characterized in that: described output gear (3) is a duplicate gear, also be shaped on the gear mass of the directed muscle of two bands on the rotor correspondingly (2), and the gear wheel engaged transmission of this gear mass and duplicate gear (3).
10, small synchronous motor according to claim 9 is characterized in that: described output gear (3) top also is shaped on the 3rd gear mass; Be connected with lead (8) on the described coil block (5).
CN200920115548U 2009-03-12 2009-03-12 Micro synchronous motor Expired - Fee Related CN201393161Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920115548U CN201393161Y (en) 2009-03-12 2009-03-12 Micro synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920115548U CN201393161Y (en) 2009-03-12 2009-03-12 Micro synchronous motor

Publications (1)

Publication Number Publication Date
CN201393161Y true CN201393161Y (en) 2010-01-27

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ID=41599982

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920115548U Expired - Fee Related CN201393161Y (en) 2009-03-12 2009-03-12 Micro synchronous motor

Country Status (1)

Country Link
CN (1) CN201393161Y (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100127

Termination date: 20150312

EXPY Termination of patent right or utility model