WO2018076921A1 - 用于电机的定子、电机及压缩机 - Google Patents

用于电机的定子、电机及压缩机 Download PDF

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Publication number
WO2018076921A1
WO2018076921A1 PCT/CN2017/099341 CN2017099341W WO2018076921A1 WO 2018076921 A1 WO2018076921 A1 WO 2018076921A1 CN 2017099341 W CN2017099341 W CN 2017099341W WO 2018076921 A1 WO2018076921 A1 WO 2018076921A1
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WO
WIPO (PCT)
Prior art keywords
stator
motor
electric machine
machine according
teeth
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PCT/CN2017/099341
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English (en)
French (fr)
Inventor
向东
付清轩
刘军
齐秀秀
罗有斌
Original Assignee
广东美芝制冷设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Priority to US16/345,904 priority Critical patent/US10938257B2/en
Priority to BR112019008696-0A priority patent/BR112019008696B1/pt
Priority to EP17864415.9A priority patent/EP3525319B1/en
Publication of WO2018076921A1 publication Critical patent/WO2018076921A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • H02K1/165Shape, form or location of the slots
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/02Windings characterised by the conductor material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/30Windings characterised by the insulating material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/50Fastening of winding heads, equalising connectors, or connections thereto
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2203/00Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to the field of compressor technology, and more particularly to a stator, a motor and a compressor for an electric machine.
  • a motor is generally provided on the compressor to drive the compressor to compress the refrigerant.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention proposes a stator for an electric motor, which is advantageous for improving the output power of the motor when the stator is used on the motor, and is advantageous for saving materials compared with a motor that achieves the same output power under the related art. cut costs.
  • the invention also proposes an electric machine comprising the above described stator for an electric machine.
  • the invention also proposes a compressor comprising the above described electric machine.
  • a stator for an electric machine includes: a substantially annular stator body, the stator body being formed by stacking a plurality of silicon steel sheets having a magnetic induction strength of B, B>1.79T, a plurality of spaced apart stator teeth are formed on an inner peripheral wall of the stator body, and a receiving groove is defined between the two adjacent stator teeth; wherein a diameter of a circle of the inner end faces of the plurality of stator teeth is D1, The diameter of the circle at the outer end of the stator body is D2, and D1 and D2 satisfy: D1/D2>0.515.
  • a stator for an electric machine wherein the stator body is formed of a plurality of silicon steel sheets, and the magnetic induction strength of the silicon steel sheet is B>1.79T, and the inner end faces of the plurality of stator teeth 2 are rounded
  • the diameter D1 of the diameter D1 and the circle of the outer end of the stator body 1 satisfy: D1/D2>0.515, so that when the stator is used on the motor, it is advantageous to improve the performance of the motor and improve the output power of the motor, and the related art achieves Compared with motors under the same output power conditions, it is beneficial to save materials and reduce costs.
  • the silicon steel sheet has a thickness of 0.35 mm or 0.5 mm.
  • the area of the orthographic projection of the receiving groove on the cross section of the stator body is S, S satisfies: S>[0.215*(D2 2 -D1 2 )*3.14]/4mm 2 .
  • the width of each of the stator teeth is a stator tooth width, and two adjacent ones are The center distance between the inner ends of the nanogrooves is the stator pitch, the stator tooth width is bt1, the stator pitch is t1, and bt1 and t1 satisfy: bt1/t1 ⁇ 0.48.
  • the silicon steel sheet is processed by a cold rolling process.
  • the inner end of each of the stator teeth is provided with a stop for limiting the coil assembly of the motor.
  • a motor according to an embodiment of the present invention includes: the stator described above; and a coil assembly adapted to be wound around the stator teeth and housed in the receiving groove.
  • the motor according to the embodiment of the present invention is advantageous in improving the performance of the motor and improving the output power of the motor by providing the above-mentioned stator, which is advantageous for saving materials and reducing cost compared with the motor in the related art under the same output power condition.
  • the power cord of the coil assembly is a polyamide-imide composite polyester imide enamelled copper wire, a polyamide-imide composite polyester imide enamelled aluminum wire, a polyester paint. Copper wire, polyester enamelled aluminum wire or copper clad aluminum wire.
  • a compressor according to an embodiment of the present invention includes the above-described motor.
  • FIG. 1 is a partial structural schematic view of a motor according to some embodiments of the present invention.
  • FIG. 2 is a top plan view of a stator in accordance with some embodiments of the present invention.
  • FIG. 3 is a top plan view of a stator in accordance with some embodiments of the present invention, with shaded portions representing the area of the receiving slot.
  • Stator 100 stator body 1; stator teeth 2; limiting portion 21; receiving groove 3;
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
  • a stator 100 according to an embodiment of the present invention, which can be used on a motor, will be described below with reference to Figs.
  • a stator 100 for an electric machine may include a substantially annular stator body 1.
  • the stator body 1 is formed by stacking a plurality of silicon steel sheets, for example, a plurality of substantially annular silicon steel sheets are sequentially stacked in the up and down direction to form the stator body 1. It can be understood that the up and down direction here is the axial direction of the stator body 1.
  • the magnetic induction strength of the silicon steel sheet is B, B>1.79T, for example, B is 1.8T, 1.82T, 1.85T or 1.87T. Therefore, when the stator 100 is used on the motor, the iron loss is small, which is advantageous for improving the performance of the motor, and is advantageous for reducing the volume and weight of the stator 100 and saving materials.
  • the inner peripheral wall of the stator body 1 is formed with a plurality of spaced apart stator teeth 2, and the adjacent two stator teeth 2 define a receiving groove 3 between the stator 100 for use on the motor.
  • the coil assembly 200 of the motor can be wound around the stator teeth 2 and housed in the accommodating groove 3, thereby realizing assembly of the motor.
  • the diameter of the circle of the inner end faces of the plurality of stator teeth 2 is D1
  • the diameter of the circle of the outer end of the stator body 1 is D2
  • D1 and D2 satisfy: D1/D2>0.515, for example, D1/D2 It is 0.52, 0.53, 0.55, and the like.
  • the stator 100 for an electric machine is formed by stacking a plurality of silicon steel sheets, and the magnetic induction strength of the silicon steel sheet is B> 1.79T, and the inner end faces of the plurality of stator teeth 2 are located.
  • the diameter D1 of the circle and the diameter D2 of the circle at the outer end of the stator body 1 satisfy: D1/D2>0.515, so that when the stator 100 is used on the motor, it is advantageous to improve the performance of the motor and improve the output power of the motor. Compared with motors with the same output power in the technology, it is beneficial to save materials and reduce costs.
  • the silicon steel sheet has a thickness of 0.35 mm or 0.5 mm. Thereby, it is advantageous to further optimize the structure of the stator body 1.
  • the area of the orthographic projection of the receiving groove 3 on the cross section of the stator body 1 is S, S satisfies: S > [0.215 * (D2 2 - D1 2 ) * 3.14] / 4 mm 2 . That is, the sum of the areas of the orthographic projections of each of the accommodating grooves 3 on the cross section of the stator body 1 is S, S satisfies: S>[0.215*(D2 2 - D1 2 )*3.14]/4 mm 2 .
  • the structure of the stator body 1 is further optimized.
  • the width of each stator tooth 2 is the stator tooth width
  • the center distance between the inner ends of the adjacent two receiving slots 3 is the stator pitch
  • the stator tooth width is bt1
  • the stator The pitch is t1
  • bt1/t1 ⁇ 0.48 for example, bt1/t1 is 0.41, 0.43, 0.45, 0.46, or 0.47.
  • the silicon steel sheet is processed by a cold rolling process. Therefore, it is simple and convenient, and is advantageous for improving processing efficiency.
  • each stator tooth 2 is provided with a limiting portion 21 for limiting the coil assembly 200 of the motor.
  • the coil assembly 200 can be reliably restrained by providing the stopper portion 21 at the inner end of the stator teeth 2 (i.e., near the center of the center of the stator body 1). On the stator teeth 2, to ensure the reliability of the motor when working.
  • stator 100 The structure of the stator 100 according to an embodiment of the present invention will be described in detail below with reference to Figs. 2 to 3.
  • the stator 100 of the present embodiment includes a substantially annular stator body 1.
  • the thickness of the silicon steel sheet is 0.5 mm.
  • the inner peripheral wall of the stator body 1 is formed with a plurality of spaced apart stator teeth 2, and the adjacent two stator teeth 2 define a receiving groove 3.
  • the stator 100 is used on a motor, the coil assembly 200 of the motor can be wound.
  • the stator teeth 2 are housed in the receiving groove 3, thereby realizing the assembly of the motor.
  • the diameter of the circle of the inner end faces of the plurality of stator teeth 2 is D1
  • the diameter of the circle of the outer end of the stator body 1 is D2
  • D1 52 mm
  • D2 100 mm
  • D1/D2 0.52.
  • the efficiency of the motor varies with torque at constant current, resistance and voltage and under different loads, where the efficiency of the motor is the ratio of output efficiency to input efficiency.
  • a motor according to an embodiment of the present invention includes: the above-described stator 100; and a coil assembly 200, wherein the coil assembly 200 is adapted to be wound around the stator teeth 2 and housed in the accommodating groove 3.
  • the stator 100 described above it is advantageous to improve the performance of the motor and improve the output power of the motor, which is advantageous for saving materials and reducing costs compared with the motor in the related art under the same output power condition. .
  • the power cord of the coil assembly 200 is a polyamide-imide composite polyester imide enamelled copper wire, a polyamide-imide composite polyester imide enamelled aluminum wire, a polyester enamelled copper wire, and a poly Ester lacquered aluminum wire or copper clad aluminum wire.
  • a polyamide-imide composite polyester imide enamelled copper wire a polyamide-imide composite polyester imide enamelled aluminum wire
  • a polyester enamelled copper wire a poly Ester lacquered aluminum wire or copper clad aluminum wire.
  • a compressor according to an embodiment of the present invention includes the above-described motor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

一种用于电机的定子(100)、电机及压缩机。定子(100)包括:大体环形的定子本体(1),定子本体(1)由多个硅钢片堆叠而成,硅钢片的磁感应强度为B,B>1.79T,定子本体(1)的内周壁上形成有多个间隔设置的定子齿(2),相邻的两个定子齿(2)之间限定出容纳槽(3);其中,多个定子齿(2)的内端面所在圆的直径为D1,定子本体(1)的外端所在圆的直径为D2,D1和D2满足:D1/D2>0.515。

Description

用于电机的定子、电机及压缩机 技术领域
本发明涉及压缩机技术领域,尤其是涉及一种用于电机的定子、电机及压缩机。
背景技术
压缩机上一般设有电机以驱动压缩机工作以压缩冷媒。
随着能效等级的不断升级,通过对电机的结构进行优化以提高压缩机工作时的能效,来实现节能的目的已经成为越来越重要的问题,同时随着铁、铜、铝等资源不断减少,在达到相同输出功率条件下,希望电机使用的材料越少越好。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本发明提出一种用于电机的定子,当定子用在电机上时,有利于提高电机的输出功率,与相关技术中达到相同输出功率条件下的电机相比,有利于节省材料,降低成本。
本发明还提出一种电机,包括上述的用于电机的定子。
本发明还提出一种压缩机,包括上述的电机。
根据本发明实施例的用于电机的定子,包括:大体环形的定子本体,所述定子本体由多个硅钢片堆叠而成,所述硅钢片的磁感应强度为B,B>1.79T,所述定子本体的内周壁上形成有多个间隔设置的定子齿,相邻的两个所述定子齿之间限定出容纳槽;其中,所述多个定子齿的内端面所在圆的直径为D1,所述定子本体的外端所在圆的直径为D2,D1和D2满足:D1/D2>0.515。
根据本发明实施例的用于电机的定子,通过使得定子本体由多个硅钢片堆叠而成,并使硅钢片的磁感应强度B>1.79T,且使多个定子齿2的内端面所在圆的直径D1和定子本体1的外端所在圆的直径D2满足:D1/D2>0.515,这样,当定子用在电机上时,有利于提高电机的性能,提高电机的输出功率,与相关技术中达到相同输出功率条件下的电机相比,有利于节省材料,降低成本。
根据本发明的一些实施例,所述硅钢片的厚度为0.35mm或0.5mm。
根据本发明的一些实施例,所述容纳槽在所述定子本体的横截面上的正投影的面积为S,S满足:S>[0.215*(D22-D12)*3.14]/4mm2
根据本发明的一些实施例,每个所述定子齿的宽度为定子齿宽,相邻的两个所述容 纳槽的内端之间的中心距离为定子齿距,所述定子齿宽为bt1,所述定子齿距为t1,bt1和t1满足:bt1/t1<0.48。
根据本发明的一些实施例,所述硅钢片通过冷轧工艺加工而成。
根据本发明的一些实施例,每个所述定子齿的内端设有用于对所述电机的线圈组件进行限位的限位部。
根据本发明实施例的电机,包括:上述的定子;以及线圈组件,所述线圈组件适于缠绕在所述定子齿上且容纳在所述容纳槽内。
根据本发明实施例的电机,通过设置上述的定子,有利于提高电机的性能,提高电机的输出功率,与相关技术中达到相同输出功率条件下的电机相比,有利于节省材料,降低成本。
根据本发明的一些实施例,所述线圈组件的电源线为聚酰胺酰亚胺复合聚酯亚胺漆包铜线、聚酰胺酰亚胺复合聚酯亚胺漆包铝线、聚酯类漆包铜线、聚酯类漆包铝线或铜包铝线。
根据本发明实施例的压缩机,包括上述的电机。
根据本发明实施例的压缩机,通过设置上述的电机,有利于提升压缩机的能效。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:
图1是根据本发明一些实施例的电机的部分结构示意图;
图2是根据本发明一些实施例的定子的俯视示意图;
图3是根据本发明一些实施例的定子的俯视,其中阴影部分表示容纳槽的面积。
附图标记:
定子100;定子本体1;定子齿2;限位部21;容纳槽3;
线圈组件200。
具体实施方式
下面详细描述本发明的实施例,所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。
在本发明的描述中,需要理解的是,术语“中心”、“上”、“下”、“内”、“外”、“轴向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便 于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接或彼此可通讯;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。
下面参考图1-图3描述根据本发明实施例的定子100,该定子100可用在电机上。
如图2和图3所示,根据本发明实施例的用于电机的定子100,可以包括大体环形的定子本体1。
定子本体1由多个硅钢片堆叠而成,例如,多个大体环形的硅钢片在上下方向上依次堆叠以形成定子本体1。可以理解的是,此处的上下方向为定子本体1的轴向方向。
硅钢片的磁感应强度为B,B>1.79T,例如B为1.8T、1.82T、1.85T或1.87T等。由此,当定子100用在电机上时,铁损小,有利于提高电机的性能,同时有利于减小定子100的体积和重量,节约材料。
如图2和图3所示,定子本体1的内周壁上形成有多个间隔设置的定子齿2,相邻的两个定子齿2之间限定出容纳槽3,当定子100用在电机上时,电机的线圈组件200可缠绕在定子齿2上并容纳在容纳槽3内,从而实现电机的装配。
如图2所示,多个定子齿2的内端面所在圆的直径为D1,定子本体1的外端所在圆的直径为D2,D1和D2满足:D1/D2>0.515,例如,D1/D2为0.52、0.53、0.55等。 由此,有利于优化定子100的结构,节省定子100的材料。
根据本发明实施例的用于电机的定子100,通过使得定子本体1由多个硅钢片堆叠而成,并使硅钢片的磁感应强度B>1.79T,且使多个定子齿2的内端面所在圆的直径D1和定子本体1的外端所在圆的直径D2满足:D1/D2>0.515,这样,当定子100用在电机上时,有利于提高电机的性能,提高电机的输出功率,与相关技术中达到相同输出功率条件下的电机相比,有利于节省材料,降低成本。
可选地,硅钢片的厚度为0.35mm或0.5mm。由此,有利于进一步优化定子本体1的结构。
根据本发明的一些实施例,容纳槽3在定子本体1的横截面上的正投影的面积为S,S满足:S>[0.215*(D22-D12)*3.14]/4mm2。也就是说,每个容纳槽3在定子本体1的横截面上的正投影的面积之和为S,S满足:S>[0.215*(D22-D12)*3.14]/4mm2。从而进一步优化定子本体1的结构。
可选地,如图2所示,每个定子齿2的宽度为定子齿宽,相邻的两个容纳槽3的内端之间的中心距离为定子齿距,定子齿宽为bt1,定子齿距为t1,bt1和t1满足:bt1/t1<0.48,例如,bt1/t1为0.41、0.43、0.45、0.46或0.47等。从而进一步优化定子本体1的结构。
可选地,硅钢片通过冷轧工艺加工而成。由此,简单方便,有利于提高加工效率。
根据本发明的一些实施例,如图2和图3所示,每个定子齿2的内端设有用于对电机的线圈组件200进行限位的限位部21。由此,当线圈组件200缠绕在定子齿2上时,通过在定子齿2的内端(即靠近定子本体1的圆心的一端)设置限位部21,可将线圈组件200可靠地限位在定子齿2上,从而保证电机工作时的可靠性。
下面参考图2-图3对本发明一个具体实施例的定子100的结构进行详细说明。
如图2和图3所示,本实施例的定子100,包括大体环形的定子本体1。
定子本体1由多个硅钢片堆叠而成,硅钢片的磁感应强度为B,B=1.8T。硅钢片的厚度为0.5mm。定子本体1的内周壁上形成有多个间隔设置的定子齿2,相邻的两个定子齿2之间限定出容纳槽3,当定子100用在电机上时,电机的线圈组件200可缠绕在定子齿2上并容纳在容纳槽3内,从而实现电机的装配。
如图2所示,多个定子齿2的内端面所在圆的直径为D1,定子本体1的外端所在圆的直径为D2,D1=52mm,D2=100mm,D1/D2=0.52。
容纳槽3在定子本体1的横截面上的正投影的面积S=[0.215*(D22-D12)*3.14]/4=1231mm2。容纳槽3的个数为24个,定子齿距t1=3.14*52/24=6.8mm,定子齿 宽bt1为3.15mm,bt1/t1=0.46。
如下表所示,在恒定的电流、电阻和电压且在不同负载下,电机的效率随扭矩的变化规律,其中电机的效率为输出效率与输入效率的比值。
Figure PCTCN2017099341-appb-000001
通过上表可以得出,使用本实施例中的电机有利于提高电机的效率,提高电机的性能。
如图1所示,根据本发明实施例的电机,包括:上述的定子100;以及线圈组件200,其中线圈组件200适于缠绕在定子齿2上且容纳在容纳槽3内。
根据本发明实施例的电机,通过设置上述的定子100,有利于提高电机的性能,提高电机的输出功率,与相关技术中达到相同输出功率条件下的电机相比,有利于节省材料,降低成本。
可选地,线圈组件200的电源线为聚酰胺酰亚胺复合聚酯亚胺漆包铜线、聚酰胺酰亚胺复合聚酯亚胺漆包铝线、聚酯类漆包铜线、聚酯类漆包铝线或铜包铝线。由此,有利于降低成本。
根据本发明实施例的压缩机,包括上述的电机。
根据本发明实施例的压缩机,通过设置上述的电机,有利于提升压缩机的能效。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (9)

  1. 一种用于电机的定子,其特征在于,包括:
    大体环形的定子本体,所述定子本体由多个硅钢片堆叠而成,所述硅钢片的磁感应强度为B,B>1.79T,所述定子本体的内周壁上形成有多个间隔设置的定子齿,相邻的两个所述定子齿之间限定出容纳槽;
    其中,所述多个定子齿的内端面所在圆的直径为D1,所述定子本体的外端所在圆的直径为D2,D1和D2满足:D1/D2>0.515。
  2. 根据权利要求1所述的用于电机的定子,其特征在于,所述硅钢片的厚度为0.35mm或0.5mm。
  3. 根据权利要求1-2中任一项所述的用于电机的定子,其特征在于,所述容纳槽在所述定子本体的横截面上的正投影的面积为S,S满足:S>[0.215*(D22-D12)*3.14]/4mm2
  4. 根据权利要求1-3中任一项所述的用于电机的定子,其特征在于,每个所述定子齿的宽度为定子齿宽,相邻的两个所述容纳槽的内端之间的中心距离为定子齿距,所述定子齿宽为bt1,所述定子齿距为t1,bt1和t1满足:bt1/t1<0.48。
  5. 根据权利要求1-4中任一项所述的用于电机的定子,其特征在于,所述硅钢片通过冷轧工艺加工而成。
  6. 根据权利要求1-5中任一项所述的用于电机的定子组件,其特征在于,每个所述定子齿的内端设有用于对所述电机的线圈组件进行限位的限位部。
  7. 一种电机,其特征在于,包括:
    根据权利要求1-6中任一项所述的定子;以及
    线圈组件,所述线圈组件适于缠绕在所述定子齿上且容纳在所述容纳槽内。
  8. 根据权利要求7所述的电机,其特征在于,所述线圈组件的电源线为聚酰胺酰亚胺复合聚酯亚胺漆包铜线、聚酰胺酰亚胺复合聚酯亚胺漆包铝线、聚酯类漆包铜线、聚酯类漆包铝线或铜包铝线。
  9. 一种压缩机,其特征在于,包括根据权利要求7-8中任一项所述的电机。
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