WO2018072397A1 - 用于风扇的单相直流电机的定子、单相直流电机和风扇 - Google Patents
用于风扇的单相直流电机的定子、单相直流电机和风扇 Download PDFInfo
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- WO2018072397A1 WO2018072397A1 PCT/CN2017/078620 CN2017078620W WO2018072397A1 WO 2018072397 A1 WO2018072397 A1 WO 2018072397A1 CN 2017078620 W CN2017078620 W CN 2017078620W WO 2018072397 A1 WO2018072397 A1 WO 2018072397A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
Definitions
- the present invention relates to the field of motor technology, and more particularly to a stator for a single-phase DC motor for a fan and a single-phase DC motor having the stator, and a fan having the single-phase DC motor.
- the stator winding of a single-phase DC motor is usually limited by the structure of the stator core, thereby causing a complicated winding method and low efficiency.
- the use of a single-phase DC motor for a fan causes a problem that the fan is not easy to start. Because of the above problems, it is necessary to improve the existing single-phase DC motor.
- 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 a single-phase DC motor for a fan, the structure of which is designed in blocks, so that winding can be facilitated and efficiency can be improved.
- the invention also proposes a single phase direct current motor having the stator.
- the invention further proposes a fan having the unidirectional direct current motor.
- a stator of a single-phase DC motor for a fan includes: a plurality of tooth partial blocks each including a tooth block and a pole piece connected to a radially inner end of the tooth block, The tooth partial blocks are sequentially arranged in the circumferential direction to be combined into a ring shape; the plurality of yoke partial blocks, the plurality of yoke partial blocks may be connected end to end in a circumferential direction to form a ring shape, wherein the plurality of yoke partial blocks include and The tooth partial blocks respectively correspond to the connected plurality of first yoke partial blocks and the second yoke partial block connected between the adjacent two first yoke partial blocks; the single-phase windings, the single-phase windings are respectively wound on the plurality of teeth
- the on-board and single-phase windings have a first terminal and a second terminal adapted to be connected to an external power source.
- one of the first yoke portion block and the tooth block is provided with a first positioning groove and the other is provided with a first positioning protrusion, and the first positioning groove is matched with the first positioning protrusion.
- the first yoke portion block is positioned with the tooth block.
- one of the first yoke portion block and the second yoke portion block is provided with a second positioning groove and the other is provided with a second positioning protrusion, the second positioning groove and the second positioning The projections cooperate to position the first yoke portion block and the second yoke portion block.
- the first yoke portion block and the second yoke portion block are positioned by a stepped structure.
- each of the first yoke portion blocks is formed as a unitary structure with a corresponding one of the tooth portion blocks.
- the plurality of the first yoke portion blocks and the plurality of the second yoke portion blocks are sequentially end to end and constitute an integral annular structure.
- the single-phase windings are sequentially wound on a plurality of the tooth blocks in the circumferential direction.
- the single-phase windings are respectively wound on a plurality of the tooth blocks, and the single-phase windings on two adjacent ones of the tooth blocks are connected by a connecting wire.
- the circumferential lengths of the pole piece portions on both sides of the radial center line of the tooth block are equal, and the radial direction of the pole piece portion The size is uniformly increased or decreased in its circumferential direction.
- the circumferential lengths of the pole piece portions on both sides of the radial center line of the tooth block are not equal, and the diameter of the pole piece portion The dimension is uniformly increased or decreased in its circumferential direction.
- the radially inner end of the pole piece portion is provided with an outwardly concave groove.
- the grooves are plural and spaced apart in the circumferential direction of the pole piece.
- a single-phase DC motor comprising: a stator of a single-phase DC motor for a fan according to the first aspect; a rotor, wherein the rotor is disposed in the plurality of tooth partial blocks The inner part of the assembled ring.
- the stator according to the above embodiment of the present invention has the above-described advantages, by providing the stator, the single-phase DC motor according to the embodiment of the present invention can have a corresponding advantage that the single-phase DC motor according to the embodiment of the present invention has a simple structure. Easy to assemble.
- a fan according to an embodiment of the third aspect of the present invention includes: a base;
- the fan head is disposed on the base, the fan head includes a single-phase DC motor and a fan blade connected to the single-phase DC motor, wherein the single-phase DC motor is according to the second aspect embodiment Single-phase DC motor.
- the unidirectional direct current motor according to the present invention has the above advantages, the assembly is fast by applying the fan of the unidirectional direct current motor, and the problem that the unidirectional direct current motor of the fan application in the prior art is not easily started is improved.
- FIG. 1 is a schematic structural view of a stator showing the structure of each block according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of a stator according to another embodiment of the present invention, showing the structure of each block;
- Figure 3 is a winding diagram of the stator shown in Figure 2;
- Figure 4 is a winding diagram of the stator shown in Figure 2;
- Figure 5 is another winding manner of the stator shown in Figure 2;
- Figure 6 is a schematic structural view of a stator according to a third embodiment of the present invention.
- Figure 7 is a schematic structural view of a stator according to a fourth embodiment of the present invention.
- Figure 8 is a schematic structural view of a stator according to a fifth embodiment of the present invention.
- Fig. 9 is a schematic structural view of a tooth partial block and a first yoke partial block in the example shown in Fig. 8.
- a yoke portion block 2 a first yoke portion block 21; a first positioning groove 211; a second yoke portion block 22; a stepped groove 23;
- connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected integrally; can be directly connected, or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, it can be determined according to the specific situation. The specific meaning of the above terms in the present invention is solved.
- a stator 100 of a single-phase DC motor for a fan according to an embodiment of the present invention will be described below with reference to Figs.
- the stator 100 according to an embodiment of the present invention includes a plurality of tooth portion blocks 1, a plurality of yoke portion blocks 2, and a single-phase winding 3.
- Each of the tooth partial blocks 1 includes a tooth block 11 and a pole piece portion 12 connected to a radially inner end of the tooth block 11, and the plurality of tooth portion blocks 1 may be sequentially arranged in the circumferential direction to be combined into a ring shape. Alternatively, the plurality of tooth partial blocks 1 may be connected together by a bobbin.
- the plurality of yoke portion blocks 2 may be connected end to end in a circumferential direction to form a ring shape, wherein the plurality of yoke portion blocks 2 include a plurality of first yoke portion blocks 21 respectively connected to the plurality of tooth portion blocks 1 and connected to each other A second yoke portion block 22 between the adjacent two first yoke portion blocks 21, the first yoke portion block 21 being coupled to the radially outer end of the corresponding tooth block 11. That is, as shown, a plurality of first yoke portion blocks 21 are respectively corresponding to and connected to the plurality of tooth portion blocks 1, and each of the adjacent two first yoke portion blocks 21 passes between the second yoke portion blocks 22. Connected together to form a yoke that is annular. A plurality of tooth portion blocks 1 are provided inside the annular yoke portion, thereby constituting the entire structure of the stator core.
- the "radial” and “circumferential” aspects of the present invention are relative to the annular stator 100 structure, the direction of the radius of the annular stator 100 is “radial”, along the annular stator The direction of the circumference of 100 is “circumferential”.
- the "radial inner end” and the “radial outer end” as used in the present invention are in the middle of the center of the stator 100, adjacent to the center in the radial direction, and away from the center in the radial direction. It is outside.
- the single-phase windings 3 are respectively wound on a plurality of tooth blocks 11 and the single-phase windings 3 have a first terminal 31 and a second terminal 32 adapted to be connected to an external power source, that is, two of the single-phase windings 3
- the ends respectively constitute a first terminal 31 and a second terminal 32, and the first terminal 31 and the second terminal 32 are connected to an external power source.
- the single-phase winding 3 may be wound by a single wire, or may be composed of a plurality of wires connected end to end, but finally connected to the power supply are two terminals.
- stator 100 of the embodiment of the present invention since the entire stator 100 has a divided structure, when the tooth block 11 is wound, a plurality of yoke partial blocks 2 can be placed aside, so that the yoke is in the process of winding.
- the structure of the portion does not affect the winding of the portion of the tooth block 11, thereby facilitating winding and speeding up the winding efficiency.
- a stator 100 according to an embodiment of the present invention will be described in detail below with reference to Figs.
- the technology of the single-phase DC motor according to the embodiment of the present invention may be arbitrary, that is, it may be a two-stage motor, a four-stage motor, a six-stage motor, an eight-stage motor, or the like.
- a single-phase DC four-stage motor will be described in detail below as an example.
- the stator 100 includes four tooth portion blocks 1, and the tooth block 11 and the pole piece portion 12 in each tooth portion block 1 are formed in a unitary structure, whereby the tooth portion block can be made Forming 1 is easier and speeds up assembly.
- each of the tooth portion blocks 1 may also be composed of a plurality of punching sheets stacked one on top of the other, each punching piece including a tooth block portion and a pole piece Part, after stacking Formed as a tooth partial block 1.
- the tooth block 11 and the pole piece portion 12 in each tooth partial block 1 may be of a split structure.
- the different tooth blocks 11 and the pole pieces of different specifications and sizes can be made by constructing the body block 11 and the pole piece portion 12 into a body structure. After the fitting portion 12 is engaged, the tooth portion blocks 1 of different sizes are obtained, whereby the versatility of the components can be improved.
- each tooth partial block 1 has no components due to the outer end of the tooth block 11, so that the winding machine can be flexibly controlled during winding, which is convenient for winding, and does not interfere with other structures and avoids When the problem is solved, the efficiency has been greatly improved.
- the figure includes four first yoke portion blocks 21 and four second yoke portion blocks 22, and four first yoke portion blocks 21 are respectively connected to the outer ends of the four tooth portion blocks 1.
- Each of the second yoke portion blocks 22 is connected between the adjacent two first yoke portion blocks 21, whereby a complete one can be formed by the four first yoke portion blocks 21 and the four second yoke portion blocks 22.
- one of the first yoke portion block 21 and the tooth block 11 is provided with a first positioning groove 211 and the other is provided with a first positioning protrusion 111, the first positioning groove
- the 211 cooperates with the first positioning projection 111 to position the first yoke portion block 21 and the tooth block 11. That is, each of the first yoke portion blocks 21 and the corresponding tooth block 11 can be positioned by the structure of the first positioning groove 211 and the first positioning protrusion 111, whereby the first yoke portion block 21 and the phase can be accelerated.
- the corresponding tooth block 11 is connected to the speed, and the positioning can be ensured accurately.
- the first positioning slot 211 may be a circular shape, an oblong shape, or a polygonal shape, and the corresponding first positioning protrusions 111 may correspond to the shape of the first positioning slot 211, thereby making the positioning of the two more accurate.
- the first yoke portion 21 is provided with a first positioning groove 211
- the radially outer end of the tooth block 11 is provided with a first positioning protrusion 111
- the first positioning groove The 211 has a trapezoidal shape
- the first positioning protrusion 111 has the same shape as the first positioning groove 211 and is also formed in a trapezoidal shape.
- the opening of the radially inner end of the first positioning slot 211 is larger than the length of the side of the radially outer end. Therefore, when the first positioning protrusion 111 is engaged in the first positioning slot 211, the first positioning protrusion 111 is not easy to be The positioning groove 211 is disengaged and the positioning is more stable.
- a second positioning slot is disposed on one of the first yoke portion block 21 and the second yoke portion block 22, and the second positioning protrusion is disposed on the other, and the second positioning slot is matched with the second positioning protrusion.
- the first yoke portion block 21 and the second yoke portion block 22 are positioned. That is, the adjacent first yoke portion block 21 and the second yoke portion block 22 can also be positioned by the structure of the second positioning groove and the second positioning protrusion, whereby the first yoke portion block 21 and the phase can be accelerated.
- the corresponding second yoke portion block 22 is connected to the speed and can ensure accurate positioning.
- the second positioning groove may be a circular shape, an oblong shape, and a polygonal shape, and the corresponding second positioning protrusions may correspond to the shape of the second positioning groove, thereby making the positioning of the two more precise.
- the first yoke portion block 21 and the second yoke portion block 22 is positioned by a step structure.
- the two circumferential ends of the first yoke portion block 21 are respectively provided with a first stepped groove 23, and the two ends of the second yoke portion block 22 are provided with a second stepped groove 23, respectively.
- the notches of the first stepped groove 23 and the second stepped groove 23 are opposed to each other such that the first yoke portion block 21 and the second yoke portion block 22 can be joined when the first stepped groove 23 and the second stepped groove 23 are fitted Into a whole.
- the positioning speed and accuracy of the first yoke portion block 21 and the second yoke portion can also be improved.
- the plurality of tooth portion blocks 1 may be constructed in a unitary structure, whereby the assembly step can be reduced and the efficiency can be improved.
- each adjacent two tooth partial block 1 may be formed as a unitary structure by a stator punch connection at the uppermost and lowermost ends, wherein the stator punch between the uppermost and lowermost stator punches may still It is a split structure, thereby reducing leakage flux.
- the plurality of first yoke portion blocks 21 and the plurality of second yoke portion blocks 22 are sequentially end to end and form an integral annular structure. That is, the connection between the plurality of first yoke portion blocks 21 and the plurality of second yoke portion blocks 22 is an integral structure, whereby the connection process between the first yoke portion block 21 and the second yoke portion block 22 can be reduced. Not only can the structural strength of the product be improved, but also the assembly process can be reduced and the efficiency can be improved.
- each of the first yoke portion blocks 21 is formed in a unitary structure with the corresponding tooth portion block 1. This not only improves the structural strength of the product, but also reduces assembly steps and improves assembly efficiency.
- FIG. 2 to 4 an assembly process of the stator 100 according to an embodiment of the present invention is shown. Specifically, as shown in FIG. 2, a plurality of second yoke portion blocks 22 are placed aside, as shown in FIG. The single-phase windings 3 are sequentially wound on the tooth blocks 11 of each of the tooth portion blocks 1 until all the tooth blocks 11 are wound, as shown in Fig. 4, and each of the second yoke portion blocks 22 is mounted in place. Thereby the stator 100 is assembled.
- the winding process is simple, the efficiency is high, and mass production is easy to achieve compared to the assembly process of the single-phase motor stator in the prior art.
- the single-phase winding 3 is sequentially wound on the plurality of blocks 11 in the direction of the ring, that is, the single-phase winding 3 is constituted by one winding, which is clockwise or The counterclockwise direction is sequentially wound on each of the tooth blocks 11, and finally the first terminal 31 and the second terminal 32 of the single-phase winding 3 are respectively located on the adjacent two tooth portion blocks 1, and the remaining adjacent ones The windings on the two tooth partial blocks 1 are connected by a transition line 33.
- the single-phase windings 3 are wound on a plurality of blocks 11, respectively, and the single-phase windings 3 on the adjacent two blocks 11 are connected by a connecting line 34. That is to say, the single-phase winding 3 can be composed of four windings, each winding is wound on each of the tooth blocks 11, and the windings on the adjacent two tooth blocks 11 are connected by the connecting line 34, To form a complete single-phase winding 3.
- the single-phase winding 3 can also be wound in other ways.
- the single-phase winding 3 can be composed of two windings, one of which The root windings may sequentially wind the adjacent two tooth blocks 11, the other winding may be wound on the other two adjacent tooth blocks 11, and the last two windings may be connected by the connecting line 34.
- the single-phase winding 3 may be composed of two windings, one of which may be wound on one of the blocks 11, and the other of which may be wound in turn.
- the other three blocks 11 are formed, and the last two windings are connected by a connecting line 34.
- the winding of the stator 100 according to the embodiment of the present invention is simple and efficient regardless of the winding manner.
- a stator 100 in accordance with further embodiments of the present invention is described below with reference to FIGS. 6-7.
- the circumferential lengths of the pole piece portions 12 on both sides of the radial center line of the tooth block 11 are equal, and the radial dimension of the pole piece portion 12 is in the circumferential direction thereof. Evenly increase or decrease.
- the circumferential length of the pole piece portion 12 on the radial center line side of the tooth block 11 is equal to the circumferential length of the pole piece portion 12 on the other side of the radial center line of the tooth block 11.
- the center line L in the figure is the radial center line of the tooth block 11 in the tooth portion block 1, which is in the block portion 1
- the length of the portion of the pole piece portion 12 located to the left of the center line L is equal to the length of the portion of the pole piece portion 12 located to the right of the center line L.
- the radial dimension of the pole piece portion 12 is uniformly increased or decreased in the circumferential direction thereof. That is, the thickness of the pole piece portion 12 in the radial direction gradually increases or decreases in the circumferential direction from left to right, whereby the pole piece portion 12 is mounted after the rotor is mounted in the stator 100.
- a uniformly gradual air gap is created between the inner end surface and the outer end surface of the rotor. This not only overcomes the problem of motor starting dead point, but also reduces torque ripple, enabling single-phase DC motors to operate smoothly and with low noise.
- the circumferential lengths of the pole piece portions 12 on both sides of the radial center line of the tooth block 11 are not equal, and the radial dimension of the pole piece portion 12 is in the circumferential direction thereof. Evenly increase or decrease.
- the circumferential length of the pole piece portion 12 on the radial center line side of the tooth block 11 is not equal to the circumferential length of the pole piece portion 12 on the other side of the radial center line of the tooth block 11.
- the center line N in the figure is the radial center line of the tooth block 11 in the tooth portion block 1, which is in the block portion 1
- the length of the portion of the pole piece portion 12 located on the left side of the center line N is shorter than the length of the portion of the pole piece portion 12 located to the right of the center line N.
- the radial dimension of the pole piece portion 12 is uniformly increased or decreased in the circumferential direction thereof. That is, the thickness of the pole piece portion 12 in the radial direction gradually increases or decreases in the circumferential direction from left to right, whereby the pole piece portion 12 is mounted after the rotor is mounted in the stator 100.
- a uniform gradient occurs between the inner end surface and the outer end surface of the rotor Air gap. Therefore, it can not only overcome the problem of the starting dead point of the motor, but also further reduce the torque ripple, so that the single-phase DC motor can run smoothly and with low noise, and the effect is better.
- the radially inner end of the pole piece portion 12 is provided with an outwardly concave groove 121, which is a plurality of pieces and is in the pole piece.
- the portions 12 are spaced apart in the circumferential direction, and the groove 121 may be one. Thereby, the effect of reducing the torque ripple can be further improved.
- the structure of the four tooth partial blocks 1 constituting the same may be the same or different.
- the four tooth portion blocks 1 may have the circumferentially equal length tooth portion blocks 1 of the pole piece portion 12 on both sides of the radial center line of the tooth block 11, and may also have a pole piece portion.
- the tooth portion blocks 1 of the 12 which are unequal in circumferential length on both sides of the radial center line of the tooth block 11.
- a single-phase DC motor including a stator 100 and a rotor according to the above-described embodiment of the present invention, will be described.
- the rotor is provided in an annular inner portion in which a plurality of tooth portion blocks 1 are combined.
- the stator 100 according to the above-described embodiment of the present invention has the above-described advantages, by providing the stator 100, the single-phase DC motor according to the embodiment of the present invention can have a corresponding advantage, that is, the single-phase DC motor according to the embodiment of the present invention.
- the structure is simple and the assembly is convenient.
- a fan according to a third aspect of the present invention comprising a base and a fan head, the fan head being disposed on the base, the fan head including a single-phase DC motor and a blade connected to the single-phase DC motor, wherein the single-phase DC
- the motor is a single phase direct current motor according to the embodiment of the second aspect.
- the unidirectional direct current motor according to the present invention has the above advantages, the assembly is fast by applying the fan of the unidirectional direct current motor, and the problem that the unidirectional direct current motor of the fan application in the prior art is not easily started is improved.
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Abstract
一种用于风扇的单相直流电机的定子(100)、单相直流电机和风扇，定子(100)包括：组合成环形的多个齿部分块(1)、可首尾依次连接成环形的多个轭部分块(2)和单相绕组(3)。每个齿部分块(1)包括齿块(11)和连接在齿块(11)的径向内端的极靴部(12)，其中多个轭部分块(2)包括与多个齿部分块(1)分别对应相连的多个第一轭部分块(21)和连接在相邻的两个第一轭部分块(21)之间的第二轭部分块(22)，单相绕组(3)分别绕制在多个齿块(11)上。
Description
本发明涉及电机技术领域，尤其是涉及一种用于风扇的单相直流电机的定子和具有该定子的单相直流电机，以及一种具有该单相直流电机的风扇。
相关技术中，单项直流电机的定子绕线通常受限于定子铁芯的结构，从而造成绕线方式复杂，效率低下。此外，相关技术中，单相直流电机用于风扇的话会导致风扇不容易启动的问题，正因为上述问题的存在，因此需要对现有的单相直流电机进行改进。
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风扇的单相直流电机的定子，该定子的结构分块进行设计，从而可以方便绕线，提高效率。
本发明还提出一种具有该定子的单相直流电机。
本发明进一步还提出一种具有该单向直流电机的风扇。
根据本发明第一方面实施例的用于风扇的单相直流电机的定子包括：多个齿部分块，每个齿部分块包括齿块和连接在齿块的径向内端的极靴部，多个齿部分块在周向方向上依次排列以组合成环形；多个轭部分块，多个轭部分块在周向方向上可首尾依次连接形成为环形，其中多个轭部分块包括与多个齿部分块分别对应相连的多个第一轭部分块和连接在相邻的两个第一轭部分块之间的第二轭部分块；单相绕组，单相绕组分别绕制在多个齿块上且单相绕组具有适于与外部电源相连的第一接线端和第二接线端。
在本发明的一个优选示例中，第一轭部分块与齿块中的一个上设有第一定位槽且另一个上设有第一定位凸起，第一定位槽与第一定位凸起配合以使第一轭部分块与齿块进行定位。
在本发明的一个优选示例中，第一轭部分块与第二轭部分块中的一个上设有第二定位槽且另一个上设有第二定位凸起，第二定位槽与第二定位凸起配合以使第一轭部分块与第二轭部分块进行定位。
在本发明的一个优选示例中，第一轭部分块与第二轭部分块通过阶梯结构进行定位。
在本发明的一个优选示例中，每个所述第一轭部分块与相应的所述齿部分块形成为一体结构。
在本发明的一个优选示例中，多个所述第一轭部分块与多个所述第二轭部分块依次首尾相连且构成一体的环形结构。
在本发明的一个优选示例中，所述单相绕组沿周向方向依次绕制在多个所述齿块上。
在本发明的一个优选示例中，所述单相绕组分别绕制在多个所述齿块上，相邻两个所述齿块上的单相绕组通过连接线相连。
在本发明的一个优选示例中，在所述齿部分块中，所述极靴部的位于所述齿块的径向中心线两侧的周向长度相等，且所述极靴部的径向尺寸在其周向方向上均匀增大或缩小。
在本发明的一个优选示例中，在所述齿部分块中，所述极靴部的位于所述齿块的径向中心线两侧的周向长度不相等，且所述极靴部的径向尺寸在其周向方向上均匀增大或缩小。
在本发明的一个优选示例中，所述极靴部的径向内端设有向外凹入的凹槽。
在本发明的一个优选示例中，所述凹槽为多个且在所述极靴部的周向方向上间隔开设置。
根据本发明第二方面实施例的单相直流电机，包括：根据第一方面实施例所述的用于风扇的单相直流电机的定子；转子，所述转子设在所述多个齿部分块组合成的环形的内部。
由于根据本发明上述实施例的定子具有上述优点，因此通过设置该定子，从而可以使根据本发明实施例的单相直流电机具有相应的优点，即根据本发明实施例的单相直流电机结构简单，组装方便。
根据本发明第三方面实施例的风扇，包括：底座；
扇头，所述扇头设在所述底座上，所述扇头包括单相直流电机和与所述单相直流电机相连的扇叶，其中所述单相直流电机为根据第二方面实施例单相直流电机。
由于根据本发明的单向直流电机具有上述优点，因此通过应用该单向直流电机的风扇，组装快速，而且改善了现有技术中风扇应用单向直流电机不易启动的问题。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
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是根据本发明一个实施例的定子的结构示意图，其示出了各个分块的结构；
图2是根据本发明另一个实施例的定子的结构示意图，其示出了各个分块的结构；
图3是图2所示的定子的绕线图；
图4是图2所示的定子的一种绕线方式图；
图5是图2所示的定子的另一种绕线方式图；
图6是根据本发明第三个实施例的定子的结构示意图；
图7是根据本发明第四个实施例的定子的结构示意图；
图8是根据本发明第五个实施例的定子的结构示意图；
图9是图8所示的示例中的一个齿部分块和第一轭部分块的结构示意图。
附图标记：
用于风扇的单相直流电机的定子100；
齿部分块1；齿块11；第一定位凸起111；极靴部12；凹槽121；
轭部分块2；第一轭部分块21；第一定位槽211；第二轭部分块22；阶梯槽23；
单相绕组3；第一接线端31；第二接线端32；过渡线33；连接线34。
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，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，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，指示的方位或位置关系的术语，例如：径向、周向、内、外等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一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；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。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。
下面参考图1-图5描述根据本发明实施例的用于风扇的单相直流电机的定子100。根据本发明实施例的定子100包括：多个齿部分块1、多个轭部分块2和单相绕组3。
每个齿部分块1包括齿块11和连接在齿块11的径向内端的极靴部12，多个齿部分块1可以在周向方向上依次排列以组合成环形。可选地，多个齿部分块1可以通过绕线架连接在一起。
多个轭部分块2在周向方向上可首尾依次连接形成为环形，其中多个轭部分块2包括与多个齿部分块1分别对应相连的多个第一轭部分块21和连接在相邻的两个第一轭部分块21之间的第二轭部分块22，第一轭部分块21连接在对应的齿块11的径向外端。也就是说，如图所示，多个第一轭部分块21分别于多个齿部分块1对应且相连，每相邻的两个第一轭部分块21之间通过第二轭部分块22连接在一起以形成为环形的轭部。多个齿部分块1设在环形的轭部之内，由此构成定子铁芯的整体结构。
其中需要说明的是，本发明所述的“径向”、“周向”是相对于环形的定子100结构而言，沿环形的定子100的半径的方向为“径向”，沿环形的定子100的圆周的方向为“周向”。对于本发明所述的“径向内端”和“径向外端”是相对于定子100的中心而言，在径向方向上邻近该中心的即为内，在径向方向上远离该中心的即为外。
单相绕组3分别绕制在多个齿块11上且单相绕组3具有适于与外部电源相连的第一接线端31和第二接线端32，也就是说，该单相绕组3的两端分别构成第一接线端31和第二接线端32，第一接线端31和第二接线端32用于与外部电源相连。需要说明的是，单相绕组3可以是由单根线绕制而成，也可以由多根首尾相连的线组成，但最终与电源相连的是两个接线端。
根据本发明实施例的定子100，由于整个定子100为分块结构，因此在对齿块11进行绕线时，可以将多个轭部分块2放置在一旁，这样在绕线的过程中，轭部的结构不会影响齿块11部分的绕线，进而可以方便绕线，加快绕线效率。
下面将参考图1-图5详细描述根据本发明实施例的定子100。首先需要说明的是，根据本发明实施例的单相直流电机的技术可以是任意的，即可以是二级电机、四级电机、六级电机、八级电机等等。为了描述方便，下面将以单相直流四级电机为例进行详细说明。
如图1所示，该实施例中，该定子100包括四个齿部分块1，每个齿部分块1中的齿块11和极靴部12形成为一体结构，由此可以使齿部分块1的成型更加容易，加快组装进度。具体而言，由于定子是由上下叠置的多个冲片构成，因此每个齿部分块1也可以是由上下叠置的多个冲片构成，每个冲片包括齿块部分和极靴部部分，叠置后
形成为齿部分块1。
当然在本发明的实施例中，每个齿部分块1中的齿块11和极靴部12可以是分体结构。这样不仅在绕线时可以避免极靴部12对齿块11的干涉，而且通过将齿块11和极靴部12构造成分体结构，可以使不同的齿块11与不同规格、尺寸的极靴部12进行配合后，从而得到不同尺寸结构的齿部分块1，由此可以提高零部件的通用性。
如图1所示，每个齿部分块1由于齿块11的外端没有任何的部件，因此在进行绕线时可以灵活控制绕线机，方便绕线，不会与其他结构发生干涉、避让等问题，效率得到了极大的提高。
进一步地，如图1所示，图中包括四个第一轭部分块21和四个第二轭部分块22，四个第一轭部分块21分别于四个齿部分块1的外端相连，每个第二轭部分块22连接在相邻的两个第一轭部分块21之间，由此可以通过四个第一轭部分块21和四个第二轭部分块22构成一个完整的环形轭部。
可选地，在本发明的一个示例中，第一轭部分块21与齿块11中的一个上设有第一定位槽211且另一个上设有第一定位凸起111，第一定位槽211与第一定位凸起111配合以使第一轭部分块21与齿块11进行定位。也就是说，每个第一轭部分块21与相对应的齿块11可以通过第一定位槽211和第一定位凸起111的结构进行定位，由此可以加快第一轭部分块21与相对应的齿块11连接速度，而且可以保证定位的准确。可选地，第一定位槽211可以是圆形、长圆形、多边形，相对应的第一定位凸起111可以与第一定位槽211的形状是对应的，由此可以使二者定位更加精确。
如图1所示的示例中，可选地，第一轭部分块21上设有第一定位槽211，齿块11的径向外端设有第一定位凸起111，其中第一定位槽211呈梯形，第一定位凸起111与第一定位槽211的形状相同且也形成为梯形。其中第一定位槽211的径向内端的开口尺寸大于其径向外端的边长，由此当第一定位凸起111配合在第一定位槽211内后，第一定位凸起111不易从第一定位槽211内脱出，定位更加稳定。
可选地，第一轭部分块21与第二轭部分块22中的一个上设有第二定位槽且另一个上设有第二定位凸起，第二定位槽与第二定位凸起配合以使第一轭部分块21与第二轭部分块22进行定位。也就是说，相邻的第一轭部分块21与第二轭部分块22也可以通过第二定位槽和第二定位凸起的结构进行定位，由此可以加快第一轭部分块21与相对应的第二轭部分块22连接速度，而且可以保证定位的准确。可选地，第二定位槽可以是圆形、长圆形、多边形，相对应的第二定位凸起可以与第二定位槽的形状是对应的，由此可以使二者定位更加精确。
当然，如图1所示，在本发明的另一个示例中，第一轭部分块21与第二轭部分块
22通过阶梯结构进行定位。具体地，如图1所示，第一轭部分块21的周向的两端分别设有第一阶梯槽23，第二轭部分块22的周向的两端分别设有第二阶梯槽23，其中第一阶梯槽23和第二阶梯槽23的槽口朝向相对，这样当第一阶梯槽23和第二阶梯槽23配合时可以将第一轭部分块21与第二轭部分块22连接成一个整体。由此也同样可以提高第一轭部分块21与第二轭部分的定位速度和准确度。
此外，在本发明的一些实施例中，为了提高多个齿部分块1的连接效率，可以将多个齿部分块1构造成一体结构，由此可以减少组装步骤，提高效率。
可选地，每相邻两个齿部分块1可以通过位于最上端和最下端的定子冲片连接形成为一体结构，其中位于最上端和最下端的定子冲片之间的定子冲片可以仍然是分体结构，由此可以减少漏磁。
在本发明的另一个可选实施例中，多个第一轭部分块21与多个第二轭部分块22依次首尾相连且构成一体的环形结构。也就是说，多个第一轭部分块21与多个第二轭部分块22之间连接为一体结构，由此可以减少第一轭部分块21与第二轭部分块22之间的连接工序，不仅可以提高产品的结构强度，而且可以减少组装工序，提高效率。
如图2所示，与图1所示的示例不同的是，每个第一轭部分块21与相应的齿部分块1形成为一体结构。由此不仅可以提高产品的结构强度，而且可以减少组装步骤，提高组装效率。
如图2至图4，示出了根据本发明实施例的定子100的组装过程，具体地，如图2所示，将多个第二轭部分块22放置在一旁，如图3所示，在每个齿部分块1的齿块11上依次绕制单相绕组3，直至所有的齿块11均绕制完毕，如图4所示，再将每个第二轭部分块22安装到位，从而将定子100组装完毕。
综上，根据本发明上述的组装过程，相较于现有技术中的单相电机定子的组装过程，绕线简单，效率高，容易实现批量生产。
下面参考图4和图5，描述根据本发明实施例的单相电机定子的绕线结构。
如图4所示的示例中，单相绕组3沿环形的方向依次绕制在多个齿块11上，也就是说，单相绕组3由一根绕线构成，该绕线按照顺时针或逆时针的方向依次在各个齿块11上进行绕线，最终该单相绕组3的第一接线端31和第二接线端32分别位于相邻的两个齿部分块1上，其余相邻的两个齿部分块1上的绕组通过过渡线33相连。
如图5所示的示例中，单相绕组3分别绕制在多个齿块11上，相邻两个齿块11上的单相绕组3通过连接线34相连。也就是说，单相绕组3可以由四根绕线构成，每根绕线分别绕制在每个齿块11上，相邻两个齿块11上的绕线再通过连接线34进行连接，以构成一个完整的单相绕组3。
在本发明的另一些实施例中，单相绕组3还可以以其他的方式进行绕制，例如对于单相四级电机的定子而言，单相绕组3可以由两个绕线构成，其中一根绕线可以依次绕制相邻的两个齿块11，另一根绕线可以绕制在另外两个相邻的齿块11上，最后两根绕线再通过连接线34相连。
再例如，对于单相四级电机的定子而言，单相绕组3可以由两个绕线构成，其中一根绕线可以绕制在其中一个齿块11上，另一根绕线可以依次绕制在另外三个齿块11上，最后两根绕线再通过连接线34相连。
综上，无论通过哪些绕线方式，根据本发明实施例的定子100的绕线均简便，效率高。
下面参考图6-图7描述根据本发明的另一些实施例的定子100。
如图6所示，在齿部分块1中，极靴部12的位于齿块11的径向中心线两侧的周向长度相等，且极靴部12的径向尺寸在其周向方向上均匀增大或缩小。
也就是说，极靴部12的位于齿块11的径向中心线一侧的周向长度，与该极靴部12的位于齿块11的径向中心线另一侧的周向长度相等。例如图6中位于最上方的齿部分块1和第一轭部分块21，图中的中心线L即为该齿部分块1中的齿块11的径向中心线，该齿部分块1中的极靴部12位于该中心线L左侧的部分的长度等于该极靴部12位于该中心线L右侧的部分的长度。
此外，对于该极靴部12的径向尺寸在其周向方向上均匀增大或缩小。也就是说，该极靴部12在径向方向上的厚度在从左至右沿其周向方向上逐渐增大或缩小，由此当转子安装到定子100中后，该极靴部12的内端面与转子的外端面之间会产生均匀渐变的气隙。由此不仅可以克服电机起动死点的问题，而且可以降低转矩波动，使单相直流电机能够平稳、低噪音的运行。
如图7所示，在齿部分块1中，极靴部12的位于齿块11的径向中心线两侧的周向长度不相等，且极靴部12的径向尺寸在其周向方向上均匀增大或缩小。
也就是说，极靴部12的位于齿块11的径向中心线一侧的周向长度，与该极靴部12的位于齿块11的径向中心线另一侧的周向长度不相等。例如图7中位于最上方的齿部分块1和第一轭部分块21，图中的中心线N即为该齿部分块1中的齿块11的径向中心线，该齿部分块1中的极靴部12位于该中心线N左侧的部分的长度短于该极靴部12位于该中心线N右侧的部分的长度。
此外，对于该极靴部12的径向尺寸在其周向方向上均匀增大或缩小。也就是说，该极靴部12在径向方向上的厚度在从左至右沿其周向方向上逐渐增大或缩小，由此当转子安装到定子100中后，该极靴部12的内端面与转子的外端面之间会产生均匀渐变
的气隙。由此不仅可以克服电机起动死点的问题，而且可以进一步降低转矩波动，使单相直流电机能够平稳、低噪音的运行，效果更好。
再如图8和图9，与图7所示的示例不同的是，极靴部12的径向内端设有向外凹入的凹槽121，该凹槽121为多个且在极靴部12的周向方向上间隔开设置，该凹槽121也可以是一个。由此可以进一步提高降低转矩波动的效果。
需要说明的是，对于同一个定子100，组成其的四个齿部分块1的结构可以是相同的，也可以是不同的。例如在同一个定子100中，四个齿部分块1中可以有极靴部12的位于齿块11的径向中心线两侧的周向长度相等的齿部分块1，也可以有极靴部12的位于齿块11的径向中心线两侧的周向长度不相等的齿部分块1。
下面将描述根据本发明第二方面实施例的单相直流电机，包括根据本发明上述实施例的定子100和转子，转子设在多个齿部分块1组合成的环形的内部。
由于根据本发明上述实施例的定子100具有上述优点，因此通过设置该定子100，从而可以使根据本发明实施例的单相直流电机具有相应的优点，即根据本发明实施例的单相直流电机结构简单，组装方便。
下面将描述根据本发明第三方面实施例的风扇，包括底座和扇头，扇头设在底座上，扇头包括单相直流电机和与该单相直流电机相连的扇叶，其中单相直流电机为根据第二方面实施例所述的单相直流电机。
由于根据本发明的单向直流电机具有上述优点，因此通过应用该单向直流电机的风扇，组装快速，而且改善了现有技术中风扇应用单向直流电机不易启动的问题。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“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一定指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何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。
Claims (14)
- 一种用于风扇的单相直流电机的定子，其特征在于，包括：多个齿部分块，每个齿部分块包括齿块和连接在齿块的径向内端的极靴部，多个齿部分块在周向方向上依次排列以组合成环形；多个轭部分块，多个轭部分块在周向方向上可首尾依次连接形成为环形，其中多个轭部分块包括与多个齿部分块分别对应相连的多个第一轭部分块和连接在相邻的两个第一轭部分块之间的第二轭部分块；单相绕组，单相绕组分别绕制在多个齿块上且单相绕组具有适于与外部电源相连的第一接线端和第二接线端。
- 根据权利要求1所述的用于风扇的单相直流电机的定子，其特征在于，第一轭部分块与齿块中的一个上设有第一定位槽且另一个上设有第一定位凸起，第一定位槽与第一定位凸起配合以使第一轭部分块与齿块进行定位。
- 根据权利要求1或2所述的用于风扇的单相直流电机的定子，其特征在于，第一轭部分块与第二轭部分块中的一个上设有第二定位槽且另一个上设有第二定位凸起，第二定位槽与第二定位凸起配合以使第一轭部分块与第二轭部分块进行定位。
- 根据权利要求1或2所述的用于风扇的单相直流电机的定子，其特征在于，第一轭部分块与第二轭部分块通过阶梯结构进行定位。
- 根据权利要求1所述的用于风扇的单相直流电机的定子，其特征在于，每个所述第一轭部分块与相应的所述齿部分块形成为一体结构。
- 根据权利要求1或2所述的用于风扇的单相直流电机的定子，其特征在于，多个所述第一轭部分块与多个所述第二轭部分块依次首尾相连且构成一体的环形结构。
- 根据权利要求1-6中任一项所述的用于风扇的单相直流电机的定子，其特征在于，所述单相绕组沿周向方向依次绕制在多个所述齿块上。
- 根据权利要求1-6中任一项所述的用于风扇的单相直流电机的定子，其特征在于，所述单相绕组分别绕制在多个所述齿块上，相邻两个所述齿块上的单相绕组通过连接线相连。
- 根据权利要求1-8中任一项所述的用于风扇的单相直流电机的定子，其特征在于，在所述齿部分块中，所述极靴部的位于所述齿块的径向中心线两侧的周向长度相等，且所述极靴部的径向尺寸在其周向方向上均匀增大或缩小。
- 根据权利要求1-8中任一项所述的用于风扇的单相直流电机的定子，其特征在于，在所述齿部分块中，所述极靴部的位于所述齿块的径向中心线两侧的周向长度不 相等，且所述极靴部的径向尺寸在其周向方向上均匀增大或缩小。
- 根据权利要求10所述的用于风扇的单相直流电机的定子，其特征在于，所述极靴部的径向内端设有向外凹入的凹槽。
- 根据权利要求11所述的用于风扇的单相直流电机的定子，其特征在于，所述凹槽为多个且在所述极靴部的周向方向上间隔开设置。
- 一种单相直流电机，其特征在于，包括：根据权利要求1-12中任一项所述的用于风扇的单相直流电机的定子；转子，所述转子设在所述多个齿部分块组合成的环形的内部。
- 一种风扇，其特征在于，包括：底座；扇头，所述扇头设在所述底座上，所述扇头包括单相直流电机和与所述单相直流电机相连的扇叶，其中所述单相直流电机为根据权利要求13所述的单相直流电机。
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| CN201621144135.6U CN206195485U (zh) | 2016-10-20 | 2016-10-20 | 用于风扇的单相直流电机的定子、单相直流电机和风扇 |
| CN201621144135.6 | 2016-10-20 | ||
| CN201610917553.2 | 2016-10-20 | ||
| CN201610917553.2A CN106329747A (zh) | 2016-10-20 | 2016-10-20 | 用于风扇的单相直流电机的定子、单相直流电机和风扇 |
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| CN109004776A (zh) * | 2018-07-17 | 2018-12-14 | 珠海格力电器股份有限公司 | 一种拼装式定子组件、电机及风机 |
| CN110858732A (zh) * | 2018-08-24 | 2020-03-03 | 广东威灵电机制造有限公司 | 定子和电机 |
| CN113675962A (zh) * | 2020-05-13 | 2021-11-19 | 佛山市威灵洗涤电机制造有限公司 | 定子冲片以及具有该定子冲片的定子、电机和电器装备 |
| CN114915053A (zh) * | 2022-06-27 | 2022-08-16 | 西北工业大学 | 一种分瓣式齿轭分离成型线圈安装式定子 |
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| CN110858732A (zh) * | 2018-08-24 | 2020-03-03 | 广东威灵电机制造有限公司 | 定子和电机 |
| CN113675962A (zh) * | 2020-05-13 | 2021-11-19 | 佛山市威灵洗涤电机制造有限公司 | 定子冲片以及具有该定子冲片的定子、电机和电器装备 |
| CN114915053A (zh) * | 2022-06-27 | 2022-08-16 | 西北工业大学 | 一种分瓣式齿轭分离成型线圈安装式定子 |
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