CN109873542A - Monophase machine - Google Patents
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- CN109873542A CN109873542A CN201811203190.1A CN201811203190A CN109873542A CN 109873542 A CN109873542 A CN 109873542A CN 201811203190 A CN201811203190 A CN 201811203190A CN 109873542 A CN109873542 A CN 109873542A
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Abstract
The present invention provides the output of motor when can improve high speed rotation and monophase machine that is torque pulsation inhibited, ensuring startability in such a way that torque when not generating driving is 0 situation simultaneously.Monophase machine has: the rotor (1) with permanent magnet；And the periphery by being configured at rotor (1) with rotor (1) with separating gap and there is the stator (3) constituted with the stator core (30) of rotor (1) opposed pairs teeth portion (33) and the coil (34) being equipped on around teeth portion, wherein, the mechanical angle that is, tooth angle of the angular regions towards rotor outer periphery of the front end of teeth portion (33) are 40 ° or more 120 ° or less, using the circumferential position of the teeth portion of rotor phase setting when being 0 according to anti-induction voltage as base position, above-mentioned angular regions are carried out being 0.51 or more to the angle ratio R (1/ θ of=θ) of traveling side angle, θ 1 and tooth angle θ after dividing in base position.
Description
Technical field
The present invention relates to the monophase machines for having used permanent magnet rotor.
Background technique
In the monophase machine for having used permanent magnet rotor, it is opposed to configure a pair of of teeth portion across rotor.For this
For the monophase machine of sample, further include that driving circuit can simply form interiorly, and less expensive, but is started in principle
There are projects for property.Therefore, the technology for improving startability is developed.Such as following technology is disclosed in patent document 1 etc.: making tooth
The face opposed with rotor in portion is eccentric, or recess portion, the raising of Lai Shixian startability is arranged in teeth portion.
Existing technical literature
Patent document
Patent document 1: No. 3462043 bulletins of Japanese Patent No.
Summary of the invention
Problem to be solved by the invention
However, in above-mentioned monophase machine, if increase the periphery towards rotor of teeth portion angle (tooth toe angle,
Hereinafter referred to as tooth angle) increase the interlinkage flux with permanent magnet rotor, then it can be improved motor output phase for the magnitude of current
Efficiency.But increase inductance by expanding tooth angle, thus create the problem that the output of motor when rotating at high speed is bright
It is aobvious to reduce.
On the other hand, contrary to the above if reducing tooth angle, although motor when improving high speed rotation, which exports, to be reduced,
Due to the reduction of the interlinkage flux of permanent magnet rotor, so the efficiency of motor reduces, in addition to this, lead to the problem of following:
When as driving the vibration of motor (when energization) will because torque pulsation increase.Also, if torque pulsation increases, single-phase
In the case where motor, startability is deteriorated sometimes.
Although patent document 1 is conceived to startability, reduction, torque that motor when not being conceived to high speed rotation exports
Pulsation.
The present invention is invented in view of such project, and its purpose is to provide a kind of monophase machines, can improve
The output of motor when high speed rotation and be able to suppress torque pulsation, at the same can be not generate driving when torque be 0 situation
The mode of (stop) ensures startability.
The solution to the problem
(1) monophase machine of the invention has rotor and stator, and above-mentioned rotor has permanent magnet, and said stator is by fixed
Sub- iron core and coil are constituted, and said stator iron core is configured at the periphery of above-mentioned rotor via gap and has with front end wall portion
A pair of of teeth portion, above-mentioned coil is equipped on around above-mentioned teeth portion, and above-mentioned monophase machine is characterized in that, above-mentioned teeth portion it is above-mentioned
The mechanical angle that is, tooth angle θ of the circumferential angular regions of the periphery along above-mentioned rotor of front end wall portion be 40 ° or more and 120 ° with
Under, using the above-mentioned circumferential position of the above-mentioned teeth portion of the phase settings of above-mentioned rotor when being 0 according to anti-induction voltage as base
Level is set, and above-mentioned angular regions are carried out in said reference position to the rotation direction of travel side of the above-mentioned rotor after dividing
The angle ratio R (1/ θ of=θ) of angle that is, traveling side angle, θ 1 and above-mentioned tooth angle θ is 0.51 or more.
(2) preferably, above-mentioned tooth angle is 80 ° or more, and above-mentioned angle ratio R is 0.65 or less.
(3) preferably, said stator iron core have the periphery for surrounding above-mentioned rotor yoke portion and above-mentioned yoke portion across upper
A pair of of the tooth forming part stating rotor and being arranged, above-mentioned teeth portion are respectively facing above-mentioned rotor protrusion from above-mentioned tooth forming part and set
It sets, above-mentioned yoke portion forms open loop magnetic circuit.
(4) preferably, above-mentioned yoke portion includes a pair of of the opposite edge for being respectively provided with above-mentioned tooth forming part；In connection
The connection edge of a pair of of opposite edge is stated, and above-mentioned yoke portion is formed as "U" shape in the end on observation of above-mentioned rotor.
(5) preferably, said stator iron core includes the yoke portion for surrounding the periphery of above-mentioned rotor；With above-mentioned yoke portion across
Above-mentioned rotor and a pair of of the tooth forming part being arranged, above-mentioned teeth portion are respectively facing above-mentioned rotor protrusion from above-mentioned tooth forming part and set
It sets, above-mentioned yoke portion forms closed magnetic circuit.
(6) preferably, above-mentioned yoke portion is formed as in the end on observation of above-mentioned rotor by a pair of of long leg and a pair of short edges
The rectangle that portion is constituted, above-mentioned teeth portion are respectively formed in each above-mentioned long leg.
(7) preferably, the above-mentioned front end wall portion of each above-mentioned teeth portion is formed as arcuation along the periphery of above-mentioned rotor, before above-mentioned
End wall is set as different with another edge side in an edge side of above-mentioned front end wall portion from above-mentioned tooth forming part overhang outstanding
Size.
(8) preferably, the coiling being wound in around above-mentioned teeth portion is configured at from the position that the peripheral wall surfaces of above-mentioned teeth portion separate
It sets.
(9) preferably, above-mentioned monophase machine is connect with the AC power source of motor speed 70000rpm or more is made.
The effect of invention is as follows.
In accordance with the invention it is possible to the output of motor when improving high speed rotation.Also, pass through setting tooth angle θ and traveling side
The angle ratio R of angle, θ 1, can make teeth portion sufficiently asymmetric relative to base position, so as to ensure startability.In addition,
Torque pulsation when motor driven can be reduced, additionally it is possible to the situation that torque is 0 when avoiding driving.
Detailed description of the invention
Fig. 1 is with the structure chart for the major part for showing the monophase machine of an embodiment from the state of end on observation.
Fig. 2 is to illustrate that anti-induction electromotive force is the chart of 0 base position.
Fig. 3 is each characteristic for showing the inductance of the magnetic flux and stator coil by stator core when changing tooth angle
Chart.
Fig. 4 is the chart that the torque of motor is shown by tooth angle θ relative to the characteristic of the revolving speed of motor.
Fig. 5 is the chart that the torque pulsation of motor is shown by tooth angle θ relative to the characteristic of traveling side angle, θ 1.
Fig. 6 is the chart that the torque pulsation of motor is shown by tooth angle θ relative to the characteristic of angle ratio R.
Fig. 7 is that the deflecting angle (phase that the phase that the induced voltage of rotor is 0 is 0 apart from cogging torque is shown by tooth angle θ
Deflecting angle) chart relative to angle ratio R.
Fig. 8 is to show structure chart of the angle ratio R than the example of 0.65 monophase machine in the case where big.
Fig. 9 is the figure for showing the variation of output and deflecting angle when the output in each tooth angle θ is maximum angle ratio R
Table.
Figure 10 is the structure chart for showing the example that the present invention is applied to closed magnetic circuit motor.
The explanation of symbol
1-monophase machine, 2-rotors, 3-stators, the pole N of 21-permanent magnets, the pole S of 22-permanent magnets, 30-
Stator core, 31,31 '-yoke portions, 31a-opposite edge, 31b-connection edge, 31a '-long leg, 31b '-short leg,
32-tooth forming parts, 33-teeth portion, 33a-front end wall portion, 33b, 33c-sidewall portion (end on observation), the angle 33d, 33e-
Portion, 34,34 '-coils, 34a, 34a '-coiling, 35-corner spaces, O1- rotation center.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to the monophase machine as embodiment.Embodiment as shown below is not
Crossing is example, is not meant to exclude the application of the various modifications, technology do not expressed in the following embodiments.This embodiment party
Each structure of formula is able to carry out various modifications within the scope of its spirit to implement.Further, it is possible to take as needed
House selection, or can be appropriately combined.
(structure)
As shown in Figure 1, the monophase machine (below also referred to simply as motor) 1 is with 2 He of rotor for being configured inside
It is configured at the brushless single phase motor of two pole, two slot of the inner-rotor type of the stator 3 in outside.
Rotor 2 has permanent magnet, and in the periphery of rotor 2 to be configured with the pole N 21 and the pole S 22 with being staggered 180 degree phase.
The rotor 2 is around rotation center O1Rotation.
Stator 3 has the stator core 30 that multiple thin plates (such as silicon steel plate) are laminated and constitute and (omits via insulating part
Diagram) and it is equipped on the coil 34 of stator core 30, stator core 30 is configured at rotor 2 in a manner of separating gap with rotor 2
Periphery.
Also, stator core 30 has: surrounding the yoke portion 31 of the side of rotor 2；With a pair of of teeth portion 33, a pair of teeth portion 33
It is prominent from rotor 2 is respectively facing across a pair of of tooth forming part 32,32 that rotor 2 is located at yoke portion 31.Before a pair of of teeth portion 33
End part is formed as when from end on observation relative to rotation center O1Point symmetry.
Yoke portion 31 is formed as "U" shape (channel shape) when from end on observation, has: being respectively provided with tooth forming part
32 a pair of of opposite edge 31a, 31a；With the mutual connection edge of opposed one end for connecting above-mentioned opposite edge 31a, 31a
31b.Also, opposed the other end of opposite edge 31a, 31a is opened wide each other.
The front end wall portion 33a for being formed in its projected direction front end of each teeth portion 33 along rotor 2 outer peripheral surface 2a and from axial direction
Be formed as arc-shaped when observation.Sidewall portion 33b, 33c when from end on observation positioned at two sides of each teeth portion 33 can not also be with
Connection edge 31b is parallel, and sidewall portion 33b, 33c can also incline in a manner of with being separated from each other towards front end each other
Tiltedly.
Moreover, the corner 33d of an edge side (the rotation direction of travel side of rotor 2) of front end wall portion 33a and another edge side (turn
The opposite side of the rotation direction of travel of son 2) corner 33e be set as the overhang different towards the opposed protrusion of teeth portion 33.This
Place, an edge side corner sections 33d of front end wall portion 33a are larger protruded than another edge side corner sections 33e.In addition, the rotation of rotor 2 is advanced
Direction refers to the direction that the periphery of the rotor 2 in the rotation of rotor 2 is advanced.
Also, the sidewall portion of an edge side (the rotation direction of travel side of rotor 2) of the one edge side corner sections 33d of formation of teeth portion 33
33b in contrast, forms another edge side (rotor 2 of another edge side corner sections 33e close to being slightly tilted in parallel with short leg 31b
Rotation direction of travel opposite side) sidewall portion 33c larger tilted than sidewall portion 33b.Therefore, the sidewall portion of teeth portion 33
The side 33c is in the shape of constriction.
In addition, a pair of of teeth portion 33 is formed as when from end on observation relative to rotation center O1Point symmetry.
Also, an edge side corner sections 33d of a teeth portion 33 and another edge side corner sections 33e of another teeth portion 33 mutually divide
From tooth is not configured in the region between edge side corner sections 33d in the outer peripheral surface 2a of rotor 2, above-mentioned and another edge side corner sections 33e
Portion 33, outer peripheral surface 2a expose relative to yoke portion 31.
Coil 34 is equipped with around the connection edge 31b in yoke portion 31, which is that such as core wire is copper and outside
Circumferential surface winding is implemented with the coiling 34a of insulating film and constitutes.Coil 34 is connect with AC power source, according to a-c cycle from one
Teeth portion 33 is alternately produced magnetic flux towards another teeth portion 33 or from another teeth portion 33 towards 33 ground of teeth portion.
If supplying alternating current to coil 34, yoke portion 31 forms magnetic circuit (magnetic loop), because of the permanent magnet with rotor 2
Interaction between magnetic flux, rotor 2 rotate as shown by the arrows in Figure 1.Magnetic flux warp behind yoke portion 31 and teeth portion 33
It is flowed to by rotor 2 relative to rotation center O1Opposite side teeth portion 33.It is opposed another due to a pair of of opposite edge 31a, 31a
One end opens wide each other, so magnetic circuit is open loop magnetic circuit.
However, the tooth angle θ setting of the front end wall portion 33a of teeth portion 33 is within a predetermined range in this motor 1.Tooth angle θ is
Refer to the circumferential mechanical angle for the part of the periphery 2a of rotor 2 faced with front end wall portion 33a.The preset range of tooth angle θ refers to 40 °
Above and 120 ° of ranges (40 °≤θ≤120 °) below, in the present embodiment, tooth angle θ is 110 °.
Also, in this motor 1, traveling side angle, θ 1 is tooth angle θ in the base position (mechanical Angle Position) of teeth portion 33
The angle of the rotation direction of travel side of rotor 2, the traveling side angle, θ 1 and tooth are leaned in ratio base position in the case where carrying out to dividing
Angle ratio R (the 1/ θ of=θ) setting of angle θ is within a predetermined range.
The base position of teeth portion 33 be with the anti-induction electromotive force of rotor 2 be 0 when rotor 2 rotatable phase corresponding to
The circumferential position of the front end wall portion 33a of teeth portion 33.
If the rotor 2 of halted state to be made rotates, according to the position of the magnetic pole of the permanent magnet of rotor 2 and each teeth portion 33
Relationship, i.e. motor 1 mechanical angle and generate counter electromotive force.As shown in Fig. 2, (the dislike of voltage caused by counter electromotive force at this time
Answer voltage) hummock change according to the mechanical angle of motor 1 and in sin, (zero hands over the mechanical angle for being 0 there are anti-induction electromotive force
Point).Tooth corresponding to position (middle position of the pole S and the pole N) 2s between the magnetic pole of rotor 2 when by the anti-induction voltage being 0
Base position of the circumferential position of the front end wall portion 33a in portion 33 as teeth portion 33.
The prescribed limit of traveling side angle, θ 1 is 48 ° or more and 63 ° hereinafter, in the present embodiment, as shown in Figure 1, will
Tooth angle θ is set as 110 °, in addition will base position tooth angle θ (=110 °) carried out to point after rotor 2 rotation traveling side
58 ° are set as to the traveling side angle, θ 1 of side.Therefore, angle ratio R (1/ θ of=θ) is 58/110 ≈ 0.53.
In this way, being to realize following each purpose: suppression within a predetermined range by tooth angle θ and the setting of traveling side angle, θ 1
The reduced purpose of the output of motor 1 when formulating the increase of the inductance of son 3 and inhibiting high speed rotation；And make because of the generation that is powered
The phase of driving torque and the phase of cogging torque are different, torque pulsation inhibited so that it is guaranteed that good startability.
Fig. 3~Fig. 5 is the chart for showing each characteristic of the motor 1 relative to tooth angle θ.
As shown in figure 3, the characteristic that the magnetic flux with the more big motor 1 for then passing through stator core 30 of tooth angle θ is more.Generally
Ground improves the output of motor by increasing magnetic flux.
But on the other hand, the bigger characteristic of the inductance with the more big then motor 1 of tooth angle θ.
In the case where 1 high speed rotation of motor, if tooth angle θ is larger, influenced by higher inductance, and electric current is defeated
Enter and significantly reduces, thus as shown in figure 4, the lesser situation of tooth angle θ becomes high torque (HT) when rotating at high speed sometimes.
Also, because there is the relationship proportional to torque in the output of motor, so in the case where motor high speed rotation,
The output of the motor of tooth angle θ larger situation becomes smaller.Such as the torque of 135 ° or more of tooth angle is lower than 120 ° in 60000rpm
The torque of tooth angle below, thus in the case where making 1 high-speed rotation type motor of motor, preferably 120 ° of tooth angles below.
In addition, tooth angle θ is bigger if the revolving speed of motor 1 is lower, the torque of motor 1 is bigger, but in the rotating ratio of motor 1
In the region of 70000rpm high, the smaller characteristic of torque with the more big then motor 1 of tooth angle θ in contrast to this.In particular,
When 80000rpm or more, characteristic performance is significant.
Also, Fig. 5 is the cogging (torque pulsation) for showing the motor 1 generated (when driving) when making motor 1 work
The chart of characteristic relative to traveling side angle, θ 1.As shown in figure 5, in the high speed rotation of motor 1, have tooth angle θ more it is big then
The smaller characteristic of torque pulsation.
On the other hand, if tooth angle θ becomes smaller, the magnetic flux density in the gap between teeth portion 33 and rotor 2 when high speed rotation
Become sharply, thus cogging becomes larger, but by increasing traveling side angle, θ 1, cogging has the tendency that reduction.If
Traveling side angle, θ 1 is set as 55 ° or more, then can steadily reduce the cogging of motor 1.Therefore, it is also preferred that the side that will advance
The value of angle, θ 1 is set as such size.
Fig. 6 is the high speed rotation that the motor 1 relative to traveling side angle, θ 1 is shown by tooth angle and with the relationship with angle ratio R
When (herein, the first rotation speed N1, N1=100000rpm) output characteristics chart, wherein angle ratio R is traveling side angle
Spend the angle ratio of θ 1 and tooth angle θ.
As shown in fig. 6, angle ratio R=0.50 (relative to the symmetrical odontoid in base position) when rotating at high speed, with this
By comparison, it if angle ratio R is made to increase to 0.55 from 0.50, exports and promptly increases.Each tooth angle is the 0.55 of angle ratio R
The rising saturation exported between to 0.80, is slowly decreased later.That is, higher output in order to obtain, preferably by angle
Degree is set between 0.55 to 0.80 than R.
Fig. 7 is the chart for by tooth angle showing the torque deflecting angle of motor relative to the characteristic of angle ratio R.The motor turns
Square deflecting angle refers to that the bias for the phase that the phase that the induced electromotive force of rotor 2 is 0 is 0 apart from cogging torque, torque deviate
Angle is bigger, and startability is better.Become bilateral symmetry (trip and downstream are symmetrical in a rotational direction) in angle ratio R=0.5, removes this
The case where in addition the case where is the front end wall portion 33a of teeth portion 33 left-right asymmetry (trip and downstream is asymmetric in a rotational direction).
In Fig. 7, by the phase that cogging torque is 0 be 0 relative to phase deviation from induced voltage to direction of rotation side the case where be shown as
Just.
As shown in fig. 7, significantly obtaining traveling side angle, θ 1 if significantly obtaining angle ratio R, then torque deflecting angle becomes
Greatly, startability is improved.It is attentively studying as a result, know good startability in order to obtain, torque deflecting angle be preferably 1.5 ° with
On, angle ratio R at this time is set as 0.51 or more.More preferably, torque deflecting angle is 2.0 ° or more, by angle at this time
0.51 or more is set as than R and tooth angle θ is set as 60 ° or more.
In addition, in order to make angle ratio R be more than 0.65, and so that stator 3 is become small-sized, such as consider contracting as illustrated in fig. 8
Short tooth portion 33, but in this configuration, the part other than teeth portion 33 and rotor 2 are close sometimes.The case where structure shown in Fig. 8
Under, the location A as teeth portion 33 is being compared, the gap turn narrow between the teeth portion 33 and rotor 2 of the B location outside teeth portion 33, thus
There is the worry of the short circuit for generating unexpected magnetic flux and the characteristic reduction of motor.Therefore, in the feelings for making motor size become small-sized
Under condition, angle ratio R is more preferably 0.65 or less.
Fig. 9 show the variation of the output of the motor 1 when being output into maximum angle ratio R of in each tooth angle θ motor 1 with
And the variation of torque deflecting angle.In the range of tooth angle θ is 40 ° to 120 °, good output can be obtained.In addition, 80 ° with
In upper and 100 ° or less of range, especially good output can be obtained.
(effect and effect)
The monophase machine 1 of present embodiment is constituted as described above, by by tooth angle θ be set as 40 ° or more and 120 ° hereinafter,
The output of motor when can be improved high speed rotation.Also, if tooth angle θ is larger, is difficult to ensure angle ratio R, if but tooth angle θ be
120 ° hereinafter, then it is easy to ensure that angle ratio R.
Moreover, because angle ratio R is 0.51 or more, so it is sufficiently asymmetric to make teeth portion 33 or so, and can add
Big torque deflecting angle, so as to ensure startability.
Also, by making 80 ° of tooth angle θ or more, and make angle ratio R 0.65 hereinafter, the processing of teeth portion 33 becomes easy.
Since yoke portion 31 forms open loop magnetic circuit, so motor 1 can be constituted compactly, and it is also suitable for the rotation of motor 1
Turn center O1It is configured at the structure of the part at the intracorporal angle of shell.
Since yoke portion 31 is formed as "U" shape, so even if the shell (not shown) of motor 1 is formed as to each equipment
The good cuboid of the assemblability of assembling, the advantages of also can efficiently use shell intracorporal space.
In the present embodiment, due to relative to rotation center O1Each front end wall portion 33a of a pair of of teeth portion 33 of point symmetry
An edge side and another edge side be different overhang, so the magnetic circuit in teeth portion 33 is formed as left in an edge side and another edge side
Right asymmetry.Therefore, reference line direction (edge of the direction of magnetic circuit relative to a pair of of tooth forming part 32,32 in link yoke portion 31
The direction in the direction that short leg 31b is extended) deviate, it is easy to make the phase that the phase of the torque 0 of motor is 0 with anti-induction voltage
Dislocation is opened, thus also have it is easy to ensure that motor 1 since stop startability the advantages of.
If reducing tooth angle θ, tailed off by the magnetic flux of the motor 1 of stator core 30, thus in this point, motor 1
Output reduces, if but being configured to motor 1 and motor speed be the AC power source of 70000rpm or more, more preferably 80000rpm
Above AC power source connection, makes 1 high speed rotation of motor, even if then tooth angle θ being set as 120 ° or less smaller, being further
100 ° hereinafter, can also ensure that the output of motor 1.
(other way)
In the above-described embodiment, example goes out open loop magnetic circuit motor, but the present invention can for example be suitable for shown in Figure 10
Closed magnetic circuit motor.
In addition, symbol identical with Fig. 1 shows identical component, to omit the description in Figure 10.As shown in Figure 10, fixed
Sub- iron core 30 is formed as when from end on observation relative to rotation center O1Point symmetry.The yoke portion 31 ' for surrounding the periphery of rotor 2 exists
Be formed as the ring-type of rectangle when from end on observation, there is long leg corresponding with each long side of rectangle and with one fixed width extension
31a ', 31a ' and short leg 31b ', 31b ' corresponding with each short side of rectangle and with one fixed width extension, tooth forming part 32,
32 are set to each long leg 31a ', 31a '.
Also, such as the coil 34 ' for winding coiling 34a ' made of copper and constituting is equipped on around each teeth portion 33.Each coil
34 ' connect with AC power source, according to a-c cycle from a teeth portion 33 towards another teeth portion 33 or from another teeth portion 33
Magnetic flux is alternately generated towards a teeth portion 33.In addition, in this configuration, coiling 34a ' is configured at the peripheral wall portion from teeth portion 33
The position of the base portion separation of (especially sidewall portion) 33b, 33c.
In this case, since yoke portion 31 forms closed magnetic circuit, so can compactly constitute.Therefore, it has the following advantages:
It is easy to make 1 high speed rotation of motor, high output, high efficiency, and is also able to suppress the production of the vibration when rotation of motor 1
It is raw.
Since yoke portion 31 is formed as rectangle, so even if the shell (not shown) of motor 1 is formed as assembling to each equipment
The good cuboid of assemblability, the advantages of also can efficiently use shell intracorporal space.
Even if magnetic flux passes through the constriction of the base portion (sidewall portion 33c) of sidewall portion 33b, 33c positioned at the inside of coiling 34a '
The corner space 35 in portion is simultaneously flowed, which also becomes the output to interlink with coiling 34a ', facilitates the amount for inhibiting coiling 34a '
(weight of motor 1 is inhibited to increase) and the output for improving motor 1.
In addition, yoke portion 31 shown in FIG. 1 is in "U" shape when from end on observation, but magnetic circuit is being constituted by open loop magnetic circuit
In the case of, the shape of the end on observation in yoke portion 31 is not limited to this, is capable of forming as U-shaped, C-shaped etc. with curved portion
Various shape.
In the case where constituting magnetic circuit by closed magnetic circuit, yoke portion 31 ' shown in Fig. 10 when from end on observation in rectangle or
Person is substantially in the shape of quadrangle, but the shape of the end on observation in yoke portion 31 ' is not limited to this, and it is round or close for being capable of forming
Like various shapes such as circle, the side N shapes (N is even number).
Also, the case where configuration of the shape, coiling 34a, 34a ' of teeth portion 33 is also not limited to embodiment, can be appropriate
Ground change.
Claims (9)
1. a kind of monophase machine has rotor and stator, above-mentioned rotor has permanent magnet, and said stator is by stator core and line
Circle is constituted, and said stator iron core is configured at the periphery of above-mentioned rotor via gap and has a pair of of tooth with front end wall portion
Portion, above-mentioned coil are equipped on around above-mentioned teeth portion,
Above-mentioned monophase machine is characterized in that,
The mechanical angle that is, tooth angle θ of the circumferential angular regions of the periphery along above-mentioned rotor of the above-mentioned front end wall portion of above-mentioned teeth portion
For 40 ° or more and 120 ° hereinafter,
Using the above-mentioned circumferential position of the above-mentioned teeth portion of the phase settings of above-mentioned rotor when being 0 according to anti-induction voltage as base
Level is set, and above-mentioned angular regions are carried out in said reference position to the rotation direction of travel side of the above-mentioned rotor after dividing
1/ θ of angle ratio R, that is, θ of angle that is, traveling side angle, θ 1 and above-mentioned tooth angle θ is 0.51 or more.
2. monophase machine according to claim 1, which is characterized in that
Above-mentioned tooth angle is 80 ° or more,
Above-mentioned angle ratio R is 0.65 or less.
3. monophase machine according to claim 1 or 2, which is characterized in that
Said stator iron core has the yoke portion for the periphery for surrounding above-mentioned rotor and being arranged across above-mentioned rotor for above-mentioned yoke portion
A pair of of tooth forming part,
Above-mentioned teeth portion is respectively facing above-mentioned rotor from above-mentioned tooth forming part and is provided projectingly,
Above-mentioned yoke portion forms open loop magnetic circuit.
4. monophase machine according to claim 3, which is characterized in that
Above-mentioned yoke portion includes a pair of of the opposite edge for being respectively provided with above-mentioned tooth forming part；With above-mentioned a pair of of the opposite edge of connection
Connection edge, and above-mentioned yoke portion is formed as "U" shape in the end on observation of above-mentioned rotor.
5. monophase machine according to claim 1 or 2, which is characterized in that
Said stator iron core includes the yoke portion for surrounding the periphery of above-mentioned rotor；With being arranged across above-mentioned rotor for above-mentioned yoke portion
A pair of of tooth forming part,
Above-mentioned teeth portion is respectively facing above-mentioned rotor from above-mentioned tooth forming part and is provided projectingly,
Above-mentioned yoke portion forms closed magnetic circuit.
6. monophase machine according to claim 5, which is characterized in that
Above-mentioned yoke portion is formed as the rectangle being made of a pair of of long leg and a pair of short edges portion in the end on observation of above-mentioned rotor,
Above-mentioned teeth portion is respectively formed in each above-mentioned long leg.
7. monophase machine according to claim 5 or 6, which is characterized in that
The coiling being wound in around above-mentioned teeth portion is configured at from the position that the peripheral wall surfaces of above-mentioned teeth portion separate.
8. according to monophase machine described in any one of claim 3~7, which is characterized in that
The above-mentioned front end wall portion of each above-mentioned teeth portion is formed as arcuation along the periphery of above-mentioned rotor,
Above-mentioned front end wall portion is set as from above-mentioned tooth forming part overhang outstanding in an edge side of above-mentioned front end wall portion and another
The different size in one edge side.
9. monophase machine according to any one of claims 1 to 8, which is characterized in that
Above-mentioned monophase machine is connect with the AC power source of motor speed 70000rpm or more is made.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-233246 | 2017-12-05 | ||
| JP2017233246A JP2019103294A (en) | 2017-12-05 | 2017-12-05 | Single-phase motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109873542A true CN109873542A (en) | 2019-06-11 |
| CN109873542B CN109873542B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203190.1A Expired - Fee Related CN109873542B (en) | 2017-12-05 | 2018-10-16 | Single-phase motor |
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| JP (1) | JP2019103294A (en) |
| CN (1) | CN109873542B (en) |
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|---|---|---|---|---|
| JPWO2020241836A1 (en) | 2019-05-31 | 2020-12-03 | ||
| CN112821701B (en) * | 2019-11-18 | 2022-07-08 | 珠海格力电器股份有限公司 | Single-phase motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0898487A (en) * | 1994-09-28 | 1996-04-12 | Victor Co Of Japan Ltd | Brushless motor |
| CN1579043A (en) * | 2002-03-29 | 2005-02-09 | 松下电器产业株式会社 | Motor |
| JP2005269852A (en) * | 2004-03-22 | 2005-09-29 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2012029540A (en) * | 2010-07-28 | 2012-02-09 | Minebea Co Ltd | Single-phase brushless motor |
| JP2012029515A (en) * | 2010-07-27 | 2012-02-09 | Minebea Co Ltd | Single-phase brushless motor |
| CN105356708A (en) * | 2015-12-24 | 2016-02-24 | 浙江科技学院 | Electro-magnetic flux switching two-phase square-wave motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1023690A (en) * | 1996-06-28 | 1998-01-23 | Sankyo Seiki Mfg Co Ltd | Motor |
| JP3462043B2 (en) * | 1997-06-25 | 2003-11-05 | 株式会社イワキ | Synchronous motor |
| CN106169852A (en) * | 2015-05-21 | 2016-11-30 | 德昌电机(深圳)有限公司 | Brushless single phase motor and electric tool |
| MX2016006404A (en) * | 2015-05-21 | 2017-03-30 | Johnson Electric Sa | Single phase brushless motor and electric apparatus having the same. |
-
2017
- 2017-12-05 JP JP2017233246A patent/JP2019103294A/en active Pending
-
2018
- 2018-10-16 CN CN201811203190.1A patent/CN109873542B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0898487A (en) * | 1994-09-28 | 1996-04-12 | Victor Co Of Japan Ltd | Brushless motor |
| CN1579043A (en) * | 2002-03-29 | 2005-02-09 | 松下电器产业株式会社 | Motor |
| JP2005269852A (en) * | 2004-03-22 | 2005-09-29 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2012029515A (en) * | 2010-07-27 | 2012-02-09 | Minebea Co Ltd | Single-phase brushless motor |
| JP2012029540A (en) * | 2010-07-28 | 2012-02-09 | Minebea Co Ltd | Single-phase brushless motor |
| CN105356708A (en) * | 2015-12-24 | 2016-02-24 | 浙江科技学院 | Electro-magnetic flux switching two-phase square-wave motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019103294A (en) | 2019-06-24 |
| CN109873542B (en) | 2021-03-30 |
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