WO2021022719A1 - 分块式节能型直流吊扇电机 - Google Patents

分块式节能型直流吊扇电机 Download PDF

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Publication number
WO2021022719A1
WO2021022719A1 PCT/CN2019/120263 CN2019120263W WO2021022719A1 WO 2021022719 A1 WO2021022719 A1 WO 2021022719A1 CN 2019120263 W CN2019120263 W CN 2019120263W WO 2021022719 A1 WO2021022719 A1 WO 2021022719A1
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Prior art keywords
shell
ceiling fan
iron core
ring
saving
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PCT/CN2019/120263
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English (en)
French (fr)
Inventor
周桥英
Original Assignee
佛山市南海远钻电器有限公司
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Publication of WO2021022719A1 publication Critical patent/WO2021022719A1/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
    • 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
    • H02K1/18Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/187Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
    • 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
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2786Outer rotors
    • 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
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • 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
    • H02K2203/12Machines characterised by the bobbins for supporting the windings
    • 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 invention relates to a ceiling fan motor, which is specifically used for driving the ceiling fan.
  • the technical problem to be solved by the present invention is that in view of the above-mentioned shortcomings in the prior art, a divided energy-saving DC ceiling fan motor is disclosed, the iron core of which is a split structure, and the improved matching structure makes the structure of the ceiling fan motor more reasonable. Production is more convenient, energy saving and environmental protection.
  • a block-type energy-saving DC ceiling fan motor including a shell, the shell is assembled by an upper shell and a lower shell; the inside of the shell is installed with a plastic ring and the inner wall of the plastic ring After the iron ring is fixedly installed, the fixed ring fixes the magnet on the inner wall of the iron ring; the iron core is fixedly installed in the center of the iron ring, and the iron core is fixed on the upper winding frame and the lower winding frame respectively;
  • the iron core is assembled from a single round, two, three, four or more arc-shaped iron cores
  • It also contains a shaft passing through the center of the shell, the shaft passes through the upper shell and the bottom end is rotatably mounted on the bearing, and the bearing is fixedly installed in the center of the lower shell;
  • the position where the shaft passes through the upper housing is also provided with a bearing after installation.
  • the iron core is assembled from four iron core bodies in the shape of a quarter arc.
  • both the upper bobbin and the lower bobbin comprise a plurality of uniformly distributed troughs, and the iron core is embedded in the troughs.
  • a plastic ring, an iron ring, and a fixed ring are used to shape the magnet to form a uniform circular rotating magnetic field.
  • the upper shell and the lower shell are fastened by screws after being assembled.
  • control board As a preferred embodiment of the present invention, it further includes a control board, the control board is driven by multiple power supply modes; the multiple power supply modes include DC 12V or 48V, AC 110V or 230V.
  • the present invention has the following advantages:
  • the block-type energy-saving DC ceiling fan motor disclosed in the present invention designs the rotating magnetic field of the motor to be evenly distributed on the circular ring, and the magnet is shaped by the parts plastic ring, iron ring and fixed ring to form a uniform circular rotating magnetic field. On the one hand, it reduces and reduces the electromagnetic noise caused by the uneven magnetic field. On the other hand, it ensures the matching gap between various components, improves the efficiency of the overall motor, and reduces the mechanical noise caused by poor matching.
  • the iron core of the ceiling fan motor of the present invention is changed from the traditional integral stamping into a round shape to being stamped into a quarter arc shape of the iron core, which makes the stamping and stamping die more simple and convenient, greatly reduces the production cost, and the magnetic density of the motor is more concentrated.
  • the explosive power of energy is even greater. Due to the winding frame insulating and wrapping the iron core, the traditional production process is improved, and the production of ceiling fan stator parts is more convenient.
  • the winding frame is a multi-slot design, which greatly increases the thrust of the motor.
  • Fig. 1 is a schematic structural diagram of a specific embodiment of the present invention.
  • the block-type energy-saving DC ceiling fan motor disclosed in the present invention is designed to have the rotating magnetic field of the motor evenly distributed on the ring, passing through the components
  • the plastic ring 801, the iron ring 802, and the fixed ring 807 shape the magnet 803 to form a uniform circular rotating magnetic field.
  • it reduces and reduces the electromagnetic noise caused by the uneven magnetic field.
  • it ensures the matching gap between various components, improves the efficiency of the overall motor, and reduces the mechanical noise caused by poor matching.
  • the motor core 805 of the ceiling fan of the present invention is changed from the traditional integral stamping into a round shape to being stamped into a quarter arc shape, which makes the stamping process and the stamping die more simple and convenient, greatly reduces the production cost, and the motor magnetic density is more concentrated.
  • the energy of the motor is more explosive.
  • the upper winding frame 804 and the lower winding frame 806 wrap the iron core 805, the traditional production process is improved, and the production of ceiling fan stator parts is more convenient.
  • the upper winding frame and the lower winding frame are designed with multiple slots, which greatly increases the thrust of the motor.
  • the entire control of the motor is controlled by the multi-power control board 812, which makes the use environment of the product more convenient and broader.
  • the invention is more in line with the theme concept of environmental protection and energy saving; under the same conditions, the energy saving effect of the patented product is more than 50%.
  • the traditional motor power is about 80W
  • the improved motor 40W can achieve the same performance.
  • the invention can greatly reduce the overall product cost by improving the relationship between the production process and the structure process.
  • the traditional ceiling fan motor production line generally requires about 35 operators, while the new ceiling fan motor production line only requires about 15 people, which greatly liberates the labor force. Due to the improvement of the structure and technology, the average cost of each motor can be saved by about ten yuan, which reduces the cost of the motor by 30%, and greatly improves the competitiveness and viability of the product.
  • the main structure iron core 805 of the present invention is an iron core body composed of 4 identical arc bodies, which saves materials, has a simple structure and a high energy accumulation rate.
  • the winding frame and insulating film are placed up and down, the process is convenient, and the traditional The lacquer process is more in line with the theme of environmental protection.
  • the outer periphery of the iron core 805 is matched with the plastic ring 801 and the iron ring 802 and the magnet 803 are plastic-wrapped to make the product more compact and the output power of the product larger.
  • the bearing 811 mainly functions as a support for the overall product.
  • the iron core 805 and magnet 803 which are the key parts that convert electrical energy into kinetic energy, adopt unique design and technology to make the product fit gap more reasonable and controllable.
  • the multi-pole rotating magnetic field composed of the iron core 805 when the product is energized is a unique structure, which reduces the production cost of the product, reduces the current consumption of the product, and the product is small in size and has a large thrust.
  • the invention cooperates with a high-density permanent magnetic field composed of a plastic ring 801, an iron ring 802, a magnet 803, and a fixed ring 807 to make the thrust of the motor more uniform and greatly reduce electrical noise. Make the product more powerful in the limited space.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

本发明公开了一种分块式节能型直流吊扇电机,其铁芯为分体式结构,通过改进的配合结构使得吊扇电机结构更加合理,生产更加便捷,节能环保。本发明包含壳体,壳体由上壳和下壳组装而成;壳体内部安装后有塑料圈,塑料圈内壁固定安装后铁圈,固定圈将磁石固定在铁圈内壁;铁圈中心固定安装后有铁芯,铁芯上下分别固定在上绕线架和下绕线架上;所述铁芯由四个四分之一圆弧形状的铁芯体组装而成;还包含穿过壳体中心的轴,轴穿过上壳体后底端转动安装在轴承上,轴承固定安装后在下壳体的中心;所述轴穿过上壳体的位置同样安装后有轴承;控制板是多电源方式驱动,为用户提供更方便的更广阔的使用环境。

Description

分块式节能型直流吊扇电机 技术领域
本发明涉及一种吊扇电机,具体用于吊扇的驱动。
背景技术
根据我们长期的吊扇电机的生产实践我们发现传统吊扇电机的磁场设计存在改进的空间,而且现有吊扇电机铁芯为整体冲压成圆型,与其配合的其他结构造成整体吊扇电机生产工艺复杂,生产工艺长,成本高,能耗高;传统吊扇电机生产不环保,不节能。传统吊扇电机一般会有电磁噪音和高发热情况。
发明概述
技术问题
问题的解决方案
技术解决方案
本发明所要解决的技术问题在于针对上述现有技术中的不足,公开了一种分块式节能型直流吊扇电机,其铁芯为分体式结构,通过改进的配合结构使得吊扇电机结构更加合理,生产更加便捷,节能环保。
本发明解决其技术问题所采用的技术方案是:分块式节能型直流吊扇电机,包含壳体,壳体由上壳和下壳组装而成;壳体内部安装后有塑料圈,塑料圈内壁固定安装后铁圈,固定圈将磁石固定在铁圈内壁;铁圈中心固定安装后有铁芯,铁芯上下分别固定在上绕线架和下绕线架上;
所述铁芯由单个圆形,两个,三个,四个或者多个圆弧形状的铁芯体组装而成;
还包含穿过壳体中心的轴,轴穿过上壳体后底端转动安装在轴承上,轴承固定安装后在下壳体的中心;
所述轴穿过上壳体的位置同样安装后有轴承。
作为本发明的一种优选实施方式:所述铁芯由四个四分之一圆弧形状的铁芯体组装而成。
作为本发明的一种优选实施方式:所述上绕线架和下绕线架均包含多个均布的槽体,所述铁芯体嵌入在槽体内。
作为本发明的一种优选实施方式:塑料圈、铁圈、固定圈来定型磁石,形成一个均匀的圆形旋转磁场。
作为本发明的一种优选实施方式:所述轴的顶端外圆周均布安装后有两片或两片以上扇叶。
作为本发明的一种优选实施方式:所述上壳和下壳扣装后通过螺钉紧固。
作为本发明的一种优选实施方式:还包含控制板,所述控制板是多种电源方式驱动;所述多种电源方式包含直流12V或48V、交流110V或230V。
发明的有益效果
有益效果
本发明与现有技术相比具有以下优点:
本发明公开的分块式节能型直流吊扇电机,将电机旋转磁场设计成均匀分布在圆环上,由部件塑料圈、铁圈、固定圈来定型磁石使之成型一个均匀的圆形旋转磁场。一方面减少和降低因为磁场不均匀造成的电磁噪音,一方面保证各个部件之间的配合间隙,提高了整体电机的效率,降低了因为配合不良产生的机械噪音问题。本发明吊扇电机的铁芯由传统的整体冲压成圆型改为冲压成铁芯四分之一圆弧形,使冲压和冲压模具更加简单方便,大大降低生产成本,电机磁密度更加集中,电机能量爆发力更加大。由于有绕线架绝缘包裹铁芯,改进传统的生产工艺,生产吊扇定子部件更加方便。绕线架是多槽设计,大大增加了电机的推力。
对附图的简要说明
附图说明
图1为本发明的一种具体实施方式的结构示意图。
附图标记说明:
801-塑料圈,802-铁圈,803-磁石,804-上绕线架,805-铁芯,806-绕线架,807-固定圈,808-扇叶,809-上下壳,810-轴,811-轴承,812-控制板。
发明实施例
本发明的实施方式
下面结合附图所示的各实施方式对本发明进行详细说明,但应当说明的是,这些实施方式并非对本发明的限制,本领域普通技术人员根据这些实施方式所作的功能、方法、或者结构上的等效变换或替代,均属于本发明的保护范围之内。
如图1所示,其示出了本发明的具体实施例;如图所示,本发明公开的分块式节能型直流吊扇电机,将电机旋转磁场设计成均匀分布在圆环上,通过部件塑料圈801、铁圈802、固定圈807来定型磁石803,使之成型一个均匀的圆形旋转磁场。一方面减少和降低因为磁场不均匀造成的电磁噪音,一方面保证各个部件之间的配合间隙,提高了整体电机的效率,降低了因为配合不良产生的机械噪音问题。本发明的吊扇的电机铁芯805由传统的整体冲压成圆型改为冲压成四分之一圆弧形,使冲压过程和冲压模具更加简单方便,大大降低生产成本,电机磁密度更加集中,电机能量爆发力更加大。由于有上绕线架804和下绕线架806包裹铁芯805,改进传统的生产工艺,生产吊扇定子部件更加方便。上绕线架和下绕线架为多槽设计,大大增加了电机的推力。电机整个控制是由多电源控制板812来主控,使产品的使用环境更方便更广阔的。
本发明更加符合环保节能的主题理念;同等条件下,本专利产品节能效果在50%以上。驱动同样扇叶,传统电机功率在80W左右,改进后的电机40W就做到同样性能。本发明可以通过生产工艺和结构工艺的改进关系,整体产品成本大大降低。传统吊扇电机生产线一般要35人左右的作业员,新型的吊扇电机生产线仅需15人左右即可,大大解放了劳动力。由于结构工艺的改进,电机成本平均每台可节省十元钱左右,使电机成本降低了30%,大大提升产品竞争力和生存力。
经测试,旧式交流电机、传统旧式直流电机和本申请电机的性能对比如下:
如图所示:本发明的主体结构铁芯805是由4个相同圆弧体组成的铁芯体,这样节省材料,结构简单,能量聚集率高。上下再放置绕线架和绝缘胶片,工艺便捷,减少传统的
Figure PCTCN2019120263-appb-000001
漆工艺,更加符合环保主题。铁芯805外围在配合塑料圈801塑 胶包裹铁圈802和磁石803,使产品更加紧凑,产品的输出力更大。
在主体结构外围配置上下机壳809和扇叶808增强了产品的牢固性。本发明中,如图1所示,轴承811主要起到整体产品的支撑作用。在生产过程中,对于电能转换成动能的关键零件铁芯805和磁石803,采用独特的设计和工艺,使产品配合间隙更加合理、可控制。
本发明中,产品在通电运行时候由铁芯805组成的多极旋转磁场,由于是独特的结构方式,降低产品生产成本,减少产品的电流消耗,产品体积小推力大。本发明配合由塑料圈801、铁圈802、磁石803、固定圈807组成的高密度永磁磁场,使电机的推力更加均匀,大大减少电气噪音。让产品在有限的空间里能量进发里更加强劲。
上面结合附图对本发明优选实施方式作了详细说明,但是本发明不限于上述实施方式,在本领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下做出各种变化,这些变化涉及本领域技术人员所熟知的相关技术,这些都落入本发明专利的保护范围。
不脱离本发明的构思和范围可以做出许多其他改变和改型。应当理解,本发明不限于特定的实施方式,本发明的范围由所附权利要求限定。

Claims (7)

  1. 分块式节能型直流吊扇电机,其特征在于:包含壳体,壳体由上壳和下壳组装而成;壳体内部安装后有塑料圈,塑料圈内壁固定安装后铁圈,固定圈将磁石固定在铁圈内壁;铁圈中心固定安装后有铁芯,铁芯上下分别固定在上绕线架和下绕线架上;所述铁芯由单个圆形,两个,三个,四个或者多个圆弧形状的铁芯体组装而成;还包含穿过壳体中心的轴,轴穿过上壳体后底端转动安装在轴承上,轴承固定安装后在下壳体的中心;所述轴穿过上壳体的位置同样安装后有轴承。
  2. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:所述铁芯由四个四分之一圆弧形状的铁芯体组装而成。
  3. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:所述上绕线架和下绕线架均包含多个均布的槽体,所述铁芯体嵌入在槽体内。
  4. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:塑料圈、铁圈、固定圈来定型磁石,形成一个均匀的圆形旋转磁场。
  5. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:所述轴的顶端外圆周均布安装后有两片或两片以上扇叶。
  6. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:所述上壳和下壳扣装后通过螺钉紧固。
  7. 如权利要求1所述的分块式节能型直流吊扇电机,其特征在于:还包含控制板,所述控制板是多种电源方式驱动;所述多种电源方式包含直流12V或48V、交流110V或230V。
PCT/CN2019/120263 2019-08-03 2019-11-22 分块式节能型直流吊扇电机 WO2021022719A1 (zh)

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CN201910714156.9 2019-08-03
CN201910714156.9A CN110380541A (zh) 2019-08-03 2019-08-03 分块式节能型直流吊扇电机

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006060976A (ja) * 2004-08-23 2006-03-02 Nidec Shibaura Corp モータ
CN203056803U (zh) * 2012-11-19 2013-07-10 周峻锐 单相电容运转式隐凸极电动机定子
CN106451853A (zh) * 2016-10-27 2017-02-22 佛山市三水日彩电器有限公司 一种低频静音高效直流电机
CN208424159U (zh) * 2018-08-08 2019-01-22 江门市邦特电子电器有限公司 一种变频吊扇电机
CN110380541A (zh) * 2019-08-03 2019-10-25 佛山市南海远钻电器有限公司 分块式节能型直流吊扇电机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202145590U (zh) * 2011-08-10 2012-02-15 佛山市南海区东唐电机厂 直流吊扇电机外转子总成装置
CN204761201U (zh) * 2015-07-07 2015-11-11 广东福耐特电气有限公司 吊扇电机
JP2017108514A (ja) * 2015-12-09 2017-06-15 パナソニックIpマネジメント株式会社 装置
CN109361291B (zh) * 2018-12-21 2020-06-19 沈阳工业大学 具有油内冷却方式的轴向分段式外转子永磁电机螺旋桨
CN210806878U (zh) * 2019-08-03 2020-06-19 佛山市南海远钻电器有限公司 分块式节能型直流吊扇电机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006060976A (ja) * 2004-08-23 2006-03-02 Nidec Shibaura Corp モータ
CN203056803U (zh) * 2012-11-19 2013-07-10 周峻锐 单相电容运转式隐凸极电动机定子
CN106451853A (zh) * 2016-10-27 2017-02-22 佛山市三水日彩电器有限公司 一种低频静音高效直流电机
CN208424159U (zh) * 2018-08-08 2019-01-22 江门市邦特电子电器有限公司 一种变频吊扇电机
CN110380541A (zh) * 2019-08-03 2019-10-25 佛山市南海远钻电器有限公司 分块式节能型直流吊扇电机

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