CN204615604U - A kind of stator for slim permagnetic synchronous motor and motor - Google Patents
A kind of stator for slim permagnetic synchronous motor and motor Download PDFInfo
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- CN204615604U CN204615604U CN201420857186.8U CN201420857186U CN204615604U CN 204615604 U CN204615604 U CN 204615604U CN 201420857186 U CN201420857186 U CN 201420857186U CN 204615604 U CN204615604 U CN 204615604U
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Abstract
A kind of stator for slim permagnetic synchronous motor, stator comprises iron core and is set around the winding of iron core, described iron core comprises stator chip, described stator chip comprises two soft magnetism iron plates, two described soft magnetism iron plate closed assemblies connect, in the two ends in the radical length direction of at least one soft magnetism iron plate, at least one end is provided with flanging, and described flanging is that the end face edge through-thickness of soft magnetism iron plate outwards turns up formation; Stator structure disclosed in the utility model, can make full use of the stator space of motor, thus increases the power density of motor and reduce the thickness of motor.Repeatedly the iron core of dress can reduce the electrical loss of the iron core of motor.The number of turn of armature winding can reduce, thus reduces the thickness of the end of winding, and reduces the resistance of winding, improves the efficiency of motor.
Description
Technical field
The utility model relates to the field of the permagnetic synchronous motor with radial magnetic field, is specifically related to a kind of stator for slim permagnetic synchronous motor and motor.
Background technology
Motor refers to a kind of electrical installation realizing energy converting between mechanical.Permagnetic synchronous motor (PMSM) because its power density and efficiency higher, thus play an increasingly important role in modern industry and household products.
The electromagnetic structure of motor normally adopts radial magnetic field, electric machine structure shown as shown in Figure 1, Figure 2.In Fig. 1, Fig. 2, which show the basic structure that one has the PMSM of external rotor, it armature winding comprising rotor yoke, rotor-exciting magnet steel, stator core and be wrapped on stator core; Fig. 3 display be the electromagnetic structure of this motor.
The magnet steel of PMSM is made by permanent magnetic material.Rotor yoke is made up of whole steel.In order to reduce iron loss, stator core is normally repeatedly filled by the soft magnet sheet material of the high magnetic conduction as silicon steel sheet.When motor rotates, the magnetic field that the teeth portion of stator core and yoke portion pass through is alternation.The stator core of repeatedly assembling structure is adopted effectively to reduce in iron core because the electrical loss caused by alternating magnetic field.
The principal element of limiting motor thickness is at the stator structure of motor, and such as, the thickness of stator core and the thickness of end winding, be shown in Fig. 3.Iron plate shown in Fig. 6 is used to repeatedly dress up Fig. 3 and shown stator core.When the thickness of motor reduces time, the thickness of stator core must be reduced.Owing to being relevant to the active area iron core and rotor magnetic steel through the magnetic flux of armature winding.Reducing the thickness of iron core can make this active area reduce, and also just reduces the ability in the magnetic field that permanent-magnet steel that stator core accepts rotor produces.In order to ensure that the torque constant of motor can reach required value, the magnetic linkage between rotor field and armature winding just must reach required value.Like this, when stator core thickness reduces, the number of turn of armature winding must increase.But the number of turn increase of armature winding also means that the thickness of two ends of armature winding must increase, and sees Fig. 3, Fig. 4 and Fig. 5.Therefore, adopt the motor of radial magnetic field, ensure the electromagnetic performance of motor, motor thickness is difficult to be reduced.High performance thin electric motor implements very difficult.
Clearly, for thin electric motor, the gauge of the end of motor winding must be controlled exactly, and to make having enough air gaps between winding overhang and rotor, thus avoid in rotor rotation process, rotor and winding overhang are collided.But in the winding process of winding, the thickness of winding overhang is difficult to accurately control, especially when umber of turn increases.This also causes in thin electric motor production process, and the yields of motor is lower.The reliability of motor is also poor.
When iron core very thin thickness time because and contact-making surface between motor base very little, it is difficult to be fixed on the support of motor.This reliability that also can cause motor and the problem of producing on yield.
Therefore, for existing problems of the prior art, the technology of high, the high performance stator for slim permagnetic synchronous motor of a kind of reliability and the motor of applying this stator need be provided to seem particularly important.
For Ultra-thin electric machine in prior art, common thinking reduces the thickness of iron core, because iron core is formed by many 2D structure iron plate closed assemblies, the problem caused like this is that the electric property of motor and mechanical performance all worsen, the coiling of motor becomes very difficult, specifically because, the iron core of 2D structure, because the magnetic surface of iron core is long-pending very little, the iron core notch installing coiling is had to become very little, and the number of turn of winding becomes a lot, these cause the coiling difficulty of winding, the bad control of precision of the thickness of winding overhang, special winding technology must be developed to realize the winding of small ultra-thin motor.In addition, because the thickness of the end of winding increases, winding is easy to impaired, and this yields also causing motor to produce is low, the less reliable of motor.
The utility model turns up by the end of soft magnetism iron plate the problem that flanging solves Ultra-thin electric machine.Like this, iron core just becomes 3D structure, this structural change causes many great changes of Ultra-thin electric machine: reduce iron core thickness time, utilize and turn up edge to increase the active area between stator core and rotor magnetic steel towards magnet steel on iron core, utilize the contact area folding up increase iron core and support towards the installed surface of support on iron core, the electrical characteristic of motor and mechanical property can both be fully improved.Therefore, and adopt the project plan comparison of traditional stator core structure, adopt 3D stator core of the present utility model, the thickness of motor can reduce effectively.
Adopt iron core of the present utility model, the number of turn of the winding of motor reduces, and conventional winding method thus can be adopted to carry out the making of winding.Because winding is embedded among iron core, well protected, therefore the reliability of thin electric motor can improve.
The utility model is very meaningful for the realization of small-sized thin electric motor.Thickness can be realized at about 5mm, even thinner, high performance motor.
Summary of the invention
The purpose of this utility model is avoid weak point of the prior art and provide a kind of reliability high, the high performance stator for slim permagnetic synchronous motor.
Another goal of the invention of the present utility model is avoid weak point of the prior art and provide a kind of reliability high, the high performance slim permagnetic synchronous motor with radial magnetic field.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of stator for slim permagnetic synchronous motor is provided, stator comprises iron core and is set around the winding of iron core, described iron core comprises at least one stator chip, and at least one end of the length direction of described stator chip is provided with the flanging that end face edge through-thickness turns up formation; Described stator chip comprises two soft magnetism iron plates, two described soft magnetism iron plate closed assemblies connect, in the two ends in the radical length direction of at least one soft magnetism iron plate, at least one end is provided with flanging, and described flanging is that the end face edge through-thickness of soft magnetism iron plate outwards turns up formation.
Wherein, in the two ends in the radical length direction of described two soft magnetism iron plates, at least one end is respectively arranged with flanging.
Wherein, the both ends in the radical length direction of described two soft magnetism iron plates are respectively arranged with flanging.
Wherein, described flanging is vertical with the length direction of described soft magnetism iron plate is arranged.
Wherein, the height of described flanging is 0.1 times ~ 1.5 times of the thickness of the end of winding.
Wherein, the flanging of described soft magnetism iron plate is through punch forming.
A kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke, rotor magnetic steel, motor base and stator, described rotor yoke is fixed on motor base, rotor magnetic steel is provided with in described rotor yoke, described motor base is fixed in one end of described stator, and the other end of described stator is arranged in described rotor yoke.
Wherein, described in be arranged at the flanging of stator chip one end towards described rotor magnetic steel, the flanging being arranged at the stator chip other end is fixedly connected with described motor base.
The beneficial effects of the utility model:
A kind of stator for slim permagnetic synchronous motor, stator comprises iron core and is set around the winding of iron core, described iron core comprises at least one stator chip, and at least one end of the length direction of described stator chip is provided with the flanging that end face edge through-thickness turns up formation; Described stator chip comprises two soft magnetism iron plates, two described soft magnetism iron plate closed assemblies connect, in the two ends in the radical length direction of at least one soft magnetism iron plate, at least one end is provided with flanging, and described flanging is that the end face edge through-thickness of soft magnetism iron plate outwards turns up formation.
Stator structure disclosed in the utility model, the stator space of motor can be made full use of, that utilize the flanging suitable with winding thickness to improve stator core and active area between magnet steel, thus reduce the integral thickness of iron core, and then add the power density of motor, reduce the thickness of motor.
Repeatedly the iron core of dress can reduce the electrical loss of the iron core of motor, and the number of turn of armature winding can reduce, thus reduces the thickness of the end of winding, and reduces the resistance of winding, improves the efficiency of motor.
The flanging that the end face in the radical length direction of soft magnetism iron plate is turned up can be protected the end of winding; soft magnet sheet is towards the part of motor base; also because turning up and significantly increasing the contact-making surface between iron core and support of end face iron core, can facilitate and firmly iron core and winding are arranged on motor base.
Soft magnetism iron plate also effectively can strengthen the area in the yoke portion of stator core near the part that the end face of rotor yoke is turned up in addition, thus reduces the magnetic resistance of iron circuit, effectively improves the electromagnetic property of motor.Therefore, stator structure disclosed in the utility model can improve the reliability of thin electric motor and the yields of motor production effectively.
A kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke, rotor magnetic steel, motor base and stator, described stator is arranged in rotor yoke, described rotor yoke is fixed on motor base, be provided with rotor magnetic steel in described rotor yoke, described stator is fixed on described motor base.
The slim low-power machine that the utility model relates to, the thickness of motor can at about 5mm, even thinner.To this motor, form the iron plate of iron core usually at about 5, even fewer, it is very large for increasing or reducing by one, two impact of iron plate on this motor, and the impact of impact on motor characteristic and structure of winding overhang thickness is also very large.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of the motor of existing employing radial magnetic field;
Fig. 2 is the assembling schematic diagram of the structure of the motor of existing employing radial magnetic field;
Fig. 3 is the structural representation that existing stator is assemblied in motor;
Fig. 4 is the structural representation of existing stator;
Fig. 5 is the cutaway view of existing stator;
Fig. 6 forms the iron plate of conventional thin electric motor stator core;
Fig. 7 forms the structural representation of another angle of the iron plate of conventional thin electric motor stator core;
Fig. 8 is the stator core construction schematic diagram of embodiment 1 of the present utility model;
Fig. 9 is the structural representation of another angle of the stator core of embodiment 1 of the present utility model;
Figure 10 is the structural representation of the stator of embodiment 2 of the present utility model;
Figure 11 is the cutaway view of the stator of embodiment 2 of the present utility model;
Figure 12 is the structural representation that the stator of embodiment 2 of the present utility model is assemblied in motor;
Figure 13 is the structural representation of the stator of embodiment 3 of the present utility model;
Figure 14 is the structural representation of the stator of embodiment 4 of the present utility model;
Include in Fig. 1 ~ Figure 14:
1---rotor yoke, 2---rotor magnetic steel, 3---iron core, 4---winding, 5---motor base, 6---flanging, 7---inner ring, 8---outer ring, 9---soft magnetism iron plate, 10---iron plate.
Embodiment
With the following Examples the utility model is described in further detail.
Embodiment 1
As Fig. 8, Fig. 9, Figure 10, shown, a kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke 1, rotor magnetic steel 2, motor base 5 and described stator, described stator is arranged in rotor yoke 1, described rotor yoke 1 is fixed on motor base 5, rotor magnetic steel 2 is provided with in described rotor yoke 1, described stator is fixed on described motor base 5, stator comprises iron core and is set around the winding of iron core 3, described iron core 3 comprises at least one soft magnetism iron plate 9, at least one end of the length direction of described soft magnetism iron plate 9 is provided with the flanging 6 that end face edge through-thickness turns up formation.
Soft magnetism iron plate 9 arranges flanging 6 towards the end face of rotor magnetic steel 2, namely in the face of the area of rotor magnetic steel 2 can obviously increase, because iron core 3 body is still by the soft magnetism iron plate 9 of high magnetic conduction, motor rotate time because alternating magnetic field and the iron loss caused on the iron core 3 of motor still can effectively be contained.Adopt such iron core 3, because the magnetic flux of linkage obviously increases in winding 4, the number of turn of winding 4 can reduce, and the end thickness of winding 4 also just can reduce.These, the thickness for minimizing motor is very effective.And the minimizing of winding 4 number of turn also can reduce the resistance of winding 4.Therefore, the efficiency of motor can be improved.
Soft magnetism iron plate 9, towards the part of motor base 5, is provided with flanging 6, significantly increases the contact-making surface between iron core 3 and motor base 5, can facilitate firm to be arranged on motor base 5 by iron core 3 and winding 4; Soft magnetism iron plate 9 also effectively can strengthen the area in the yoke portion of stator core 3 near the part that the end face of motor base 5 is turned up in addition, thus reduces the magnetic resistance of iron core 3 magnetic circuit, effectively improves the electromagnetic property of motor.
Concrete, described flanging 6 is vertical with the length direction of described soft magnetism iron plate 9 to be arranged.The contact area with rotor magnetic steel 2 can be improved to greatest extent, or with the fixed-area of motor base 5.
Concrete, the height of described flanging 6 is 0.1 times ~ 1.5 times of the thickness of the end of winding 4.Adopt the flanging of this parameter, the most easily process, efficiency is also best.
Described flanging 6 is through punch forming.
The described flanging 6 being arranged at soft magnetism iron plate 9 one end is towards described rotor magnetic steel 2, and the flanging 6 being arranged at soft magnetism iron plate 9 other end is fixedly connected with described motor base 5.
Embodiment 2
The difference of itself and embodiment 1 is:
As shown in Figure 11, Figure 12, a kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke 1, rotor magnetic steel 2, motor base 5 and stator, described rotor yoke 1 is fixed on motor base 5, be provided with rotor magnetic steel 2 in described rotor yoke 1, described stator is fixed on described motor base 5; Iron core comprises two soft magnetism iron plates 9 and at least one deck iron plate 10, at least iron plate 10 described in one deck is arranged between described two soft magnetism iron plates 9, two soft magnetism iron plates 9 and at least iron plate 10 described in one deck repeatedly fill, the two ends of the length direction of two described soft magnetism iron plates 9 are respectively arranged with flanging 6, and described flanging 6 is that the end face edge through-thickness of soft magnetism iron plate 9 outwards turns up formation.
Two soft magnetism iron plates 9 repeatedly fill with iron plate 10, and the two ends of two soft magnetism iron plates 9 are respectively arranged with flanging 6, and described flanging 6 is that the end face edge through-thickness of soft magnetism iron plate 9 turns up formation laterally.
Embodiment 3
The difference of itself and embodiment 1 is:
A kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke 1, rotor magnetic steel 2, motor base 5 and stator, described stator is arranged in rotor yoke 1, described rotor yoke 1 is fixed on motor base 5, be provided with rotor magnetic steel 2 in described rotor yoke 1, described stator is fixed on described motor base 5; Described iron core comprises soft magnetism iron plate 9 and iron plate 10, described soft magnetism iron plate 9 and described at least a slice iron plate 10 closed assembly, at least one end of the length direction of described soft magnetism iron plate 9 is provided with flanging 6, and described flanging 6 is that the end face edge through-thickness of soft magnetism iron plate 9 turns up formation to away from iron plate 10 1 side
As shown in figure 13, the two ends of the length direction of the soft magnetism iron plate 9 of this embodiment are all provided with flanging 6, and the flanging 6 that one end is arranged is towards rotor magnetic steel 2, and the other end is provided with flanging 6, is fixedly connected with motor base 5.
Above-mentioned stator structure, also can develop into other form to coordinate different thin electric motor structures.
Embodiment 4
The difference of itself and embodiment 1 is:
A kind of slim permagnetic synchronous motor with radial magnetic field, comprise rotor yoke 1, rotor magnetic steel 2, motor base 5 and stator, described stator is arranged in rotor yoke 1, described rotor yoke 1 is fixed on motor base 5, be provided with rotor magnetic steel 2 in described rotor yoke 1, described stator is fixed on described motor base 5; Described iron core comprises two soft magnetism iron plate 9 closed assemblies, and the two ends of the length direction of two described soft magnetism iron plates 9 are respectively arranged with flanging 6, and described flanging 6 is that the end face edge through-thickness of soft magnetism iron plate 9 turns up formation laterally.
As shown in figure 14, the two ends of two soft magnetism iron plates 9 are respectively arranged with flanging 6, and described flanging 6 is that the end face edge through-thickness of soft magnetism iron plate 9 turns up formation laterally
The utility model can also be set to, and in the two ends in the radical length direction of two soft magnetism iron plates 9, at least one end is respectively arranged with flanging 6; In two soft magnetism iron plates 9, the both ends in the radical length direction of any one soft magnetism iron plate 9 are provided with flanging 6.
Electric machine structure disclosed in the utility model, is applicable to the motor of single-phase, three-phase and other numbers of phases.Although the motor introduced in figure is external rotor electric machine, this iron core 3 structure is easy to the structure developing into internal rotor.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model but not restriction to the utility model protection range; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (8)
1. the stator for slim permagnetic synchronous motor, it is characterized in that: stator comprises iron core and is set around the winding of iron core, described iron core comprises stator chip, described stator chip comprises two soft magnetism iron plates, two described soft magnetism iron plate closed assemblies connect, in the two ends in the radical length direction of at least one soft magnetism iron plate, at least one end is provided with flanging, and described flanging is that the end face edge through-thickness of soft magnetism iron plate outwards turns up formation.
2. a kind of stator for slim permagnetic synchronous motor according to claim 1, is characterized in that: in the two ends in the radical length direction of described two soft magnetism iron plates, at least one end is respectively arranged with flanging.
3. a kind of stator for slim permagnetic synchronous motor according to claim 1, is characterized in that: the both ends in the radical length direction of described two soft magnetism iron plates are respectively arranged with flanging.
4. a kind of stator for slim permagnetic synchronous motor according to claim 1 or 2 or 3, is characterized in that: described flanging is vertical with the length direction of described soft magnetism iron plate to be arranged.
5. a kind of stator for slim permagnetic synchronous motor according to claim 1 or 2 or 3, is characterized in that: the height of described flanging is 0.1 times ~ 1.5 times of the thickness of the end of winding.
6. a kind of stator for slim permagnetic synchronous motor according to claim 1, is characterized in that: the flanging of described soft magnetism iron plate is through punch forming.
7. one kind has the slim permagnetic synchronous motor of radial magnetic field, it is characterized in that: comprise rotor yoke, rotor magnetic steel, motor base and the stator as described in claim 1 to 6 any one, described rotor yoke is fixed on motor base, rotor magnetic steel is provided with in described rotor yoke, described motor base is fixed in one end of described stator, and the other end of described stator is arranged in described rotor yoke.
8. a kind of slim permagnetic synchronous motor with radial magnetic field according to claim 7, it is characterized in that: described in be arranged at the flanging of stator chip one end towards described rotor magnetic steel, the flanging being arranged at the stator chip other end is fixedly connected with described motor base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857186.8U CN204615604U (en) | 2014-12-30 | 2014-12-30 | A kind of stator for slim permagnetic synchronous motor and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857186.8U CN204615604U (en) | 2014-12-30 | 2014-12-30 | A kind of stator for slim permagnetic synchronous motor and motor |
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| CN204615604U true CN204615604U (en) | 2015-09-02 |
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| CN201420857186.8U Active CN204615604U (en) | 2014-12-30 | 2014-12-30 | A kind of stator for slim permagnetic synchronous motor and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811701A (en) * | 2014-12-30 | 2016-07-27 | 峰岹科技（深圳）有限公司 | Stator applied to thin type PMSM and motor provided with stator |
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2014
- 2014-12-30 CN CN201420857186.8U patent/CN204615604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811701A (en) * | 2014-12-30 | 2016-07-27 | 峰岹科技（深圳）有限公司 | Stator applied to thin type PMSM and motor provided with stator |
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Address after: 518000 Shenzhen Software Park, 1 Shenzhen Software Park (2 phase), No. 2, No. 1, Nanshan District high tech District, Shenzhen City, Guangdong province (limited office) Patentee after: Fengji Technology (Shenzhen) Co., Ltd Address before: 203, room 11, building two, two software park, Shenzhen Road, Nanshan District science and technology, Guangdong, Shenzhen 518057, China Patentee before: FORTIOR TECHNOLOGY (SHENZHEN) Co.,Ltd. |