CN106877556B - 电机 - Google Patents

电机 Download PDF

Info

Publication number
CN106877556B
CN106877556B CN201611140022.3A CN201611140022A CN106877556B CN 106877556 B CN106877556 B CN 106877556B CN 201611140022 A CN201611140022 A CN 201611140022A CN 106877556 B CN106877556 B CN 106877556B
Authority
CN
China
Prior art keywords
wall
electric machine
frame
bearing assembly
impeller
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201611140022.3A
Other languages
English (en)
Other versions
CN106877556A (zh
Inventor
A.S.巴恩斯
N.Y.戴蒙德
A.C.克洛西尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dyson Technology Ltd
Original Assignee
Dyson Technology Ltd
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.)
Filing date
Publication date
Application filed by Dyson Technology Ltd filed Critical Dyson Technology Ltd
Publication of CN106877556A publication Critical patent/CN106877556A/zh
Application granted granted Critical
Publication of CN106877556B publication Critical patent/CN106877556B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • 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
    • H02K1/141—Stator cores with salient poles consisting of C-shaped cores
    • 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
    • H02K1/141—Stator cores with salient poles consisting of C-shaped cores
    • H02K1/143—Stator cores with salient poles consisting of C-shaped cores of the horse-shoe type
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • H02K15/028—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots for fastening to casing or support, respectively to shaft or hub
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores
    • H02K21/185—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores with the axis of the rotor perpendicular to the plane of the armature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/524—Fastening salient pole windings or connections thereto applicable to stators only for U-shaped, E-shaped or similarly shaped cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K37/16—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures having horseshoe armature cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/02—Casings or enclosures characterised by the material thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing

Abstract

一种电机，包括：框架；转子组件包括磁体、轴承组件、叶轮和轴；以及定子组件包括定子芯部和线轴。框架，具有内壁和外壁，外壁围绕内壁且限定在外壁和内壁之间的环形通道，且扩散叶片通过环形通道从内壁延伸到外壁。内壁限定孔眼，用于支撑转子组件，且外壁限定电机的基本圆柱形外壳。

Description

电机
技术领域
本发明涉及一种电机。
背景技术
电机具有非常宽范围的应用，例如从车辆的电驱动到为诸如真空电机和风扇这样的空气移动设备、以及手持式动力工具和其它消费产品提供动力。随着电机被结合到越来越多的消费产品，重要的是发现电机成本可以被保持尽可能低的方式。此外，特别是当用于手持式器具时，重要的是发现电机的尺寸和重量可以被最小化的方式。需要对电机进行改进，其允许降低电机的尺寸、重量和成本，但是不会负面地影响它的性能。
发明内容
本发明提供了一种电机，包括：框架；转子组件包括磁体、轴承组件、叶轮和轴；以及定子组件包括定子芯部和线轴。框架，具有内壁和外壁，外壁围绕内壁且限定在外壁和内壁之间的环形通道，且扩散叶片通过环形通道从内壁延伸到外壁。内壁限定孔眼，用于支撑转子组件，且外壁限定电机的基本圆柱形外壳。
结果需要更少部件的电机可以被实现。框架的内壁支撑转子组件，且内壁和外壁还限定扩散器通道，由叶轮产生的空气流穿过该通道。由此，不需要独立的支撑部分或扩散器。通过减少电机中的部件数量，电机的成本以及它的尺寸和质量可以被降低。
孔眼可在轴承组件处支撑转子组件。由此，转子可以被支撑为使得转子组件在电机内平衡。这可以减少电机的不平衡，且将最小化不期望的振动，其会影响电机的性能且降低其寿命。
轴承组件可包括固定到轴的一对轴承和定位在两个轴承之间的弹簧。弹簧可以用于施加预负载到每个轴承的外环。这改善轴承的性能且降低它们在高速下失效的风险。
轴承组件可固定在孔眼中，内壁用作围绕轴承组件的防护套筒。结果，轴承组件并不需要独立的防护套筒。由此，电机的尺寸和重量可以被降低。此外，需要更少的部件来制造电机，从而电机的成本也可以被最小化。
外壁可沿轴向方向在上游方向和下游方向的至少一个中延伸超过内壁。结果，通过具有短于外壁的内壁，在外壁的轴向长度上存在可用空间，其可以被用于包封电机的其他部件。这有助于让电机更紧凑。此外，较少的材料被需要用来形成内壁，且从而电机的重量可以被降低。
扩散叶片可具有尾部部分，其向外壁轴向延伸超过内壁。结果，扩散器的有效长度可以被最大化，而电机的总尺寸可以被减小。
内壁可包括从内壁的一个端部沿轴向方向延伸的至少一个凸片。结果，电机的其他部件可以使用凸片固定到框架。
定子组件可包括至少一个凹部，用于接收所述至少一个凸片。定子组件可由此使用凸片固定到框架。
内壁可包括环形突起部，其从内壁的一个端部轴向地延伸，环形突起部可被接收在叶轮的毂中的凹部内。这可以建立在叶轮的毂内的曲径密封。这可以防止异物进入轴承组件，其会损坏转子组件且显著降低电机的寿命。
叶轮可为由铝形成的轴向叶轮，且可包括毂和多个附接到毂的叶片。铝是非常轻且强的，且从而叶轮可以保持足够强以承受与高速应用相关的力，但是电机的重量还可以最小化。毂可包括用于接收内壁的轴向延伸的环形突起部的凹部。
内壁可具有基本与毂的外径相匹配的外径。这建立穿过电机的均匀比例的空气通道,其有助于最小化通过电机的湍流和压力损耗,其会负面地影响电机的性能。
框架可由锌形成。锌具有益处在于它是声学迟钝的，且从而框架在使用期间能够至少部分地吸收由电机产生的噪音。
框架可包括形成在外壁中的电连接部分。电连接部分可为铲形端子。电连接部分可为DC参考连接。结果不需要附加的连接部件，且由此部件数量可以被减少。进而，这可有助于最小化电机的成本且还可以有助于减小电机的尺寸。
附图说明
为了本发明可被更容易地理解,本发明的实施例现在将要参考下面的附图通过实例而被描述，其中：
图1是电机的分解透视图；
图2显示了穿过图1的电机的框架的横截面图；
图3显示了穿过图1的电机的转子组件的横截面图；以及
图4是穿过图2和图3的组装的框架和转子组件的横截面图；
图5显示了定子组件的透视图；以及
图6显示了穿过图1的组装的电机的横截面图。
具体实施方式
为了清晰起见，术语“轴向”意味着沿电机的旋转轴线延伸的轴线方向，如图1中所示的轴线A-A。此外，方向术语“上游”和“下游”在这里是指当在使用中流体流穿过电机的方向，且还由图1中的双箭头表示。
图1是电机1的分解透视图。该电机1包括框架10，转子组件20和定子组件40。穿过框架10的横截面被示出在图2中。框架10包括内壁11和外壁12。外壁12围绕内壁11，使得环形通道14限定在它们之间。一些扩散器叶片13在内壁11和外壁12之间延伸穿过环形通道14。内壁11在长度上比外壁12更短，且内壁11定位为使得外壁12在上游方向和下游方向两者都轴向地延伸超过内壁11。在替代实施方式中，内壁可以不同地定位为使得外壁仅沿上游方向或下游方向中的一个延伸超过内壁。
框架10由锌形成，且可以通过例如加工或压模法，或加工以及压模法两者的组合方法形成。锌为声学迟钝材料且从而锌框架10能够有效地吸收由电机1在使用期间产生的声学频率。锌框架10由此用于减少内部结合有电机1的产品所产生的噪音水平。
扩散叶片13在内壁11和外壁12之间延伸，且沿着内壁的基本整个长度延伸。此外，扩散叶片13具有尾部部分18，其轴向朝向下游超过内壁向外壁延伸。扩散叶片13由此在环形通道14的径向外部部分处比在环形通道14的径向内部部分处更长。这具有益处在于扩散叶片具有作用在空气流上的更长的有效长度，而同时仍通过减小内壁11的轴向长度而允许电机的尺寸和重量保持最小化。
内壁11为圆柱形且限定孔眼15。当电机1被组装时，内壁11可支撑转子组件20在孔眼15中。此外，内壁具有凸片16，其沿轴向方向从内壁11的一个端部延伸。特别地，凸片16沿下游方向轴向地延伸。凸片16提供安装点，定子组件40可以容易地安装到该点，以便定子组件40可被固定到框架10。图2显示了单个凸片16，然而，多个凸片16可以根据定子上所需的安装点的数量和电机的其它需求而被提供。定子组件40到框架10的凸片16的安装将在下文参考图5和6而被更详细地描述。
内壁11具有轴向延伸的环形突起部17，其从内壁11的与凸片16相反方向的端部延伸。该轴向延伸的环形突起部17可以被接收到叶轮24上的互补凹部中，以形成曲径密封。这将在下文中参考图4更详细地描述。
该转子组件20包括轴21，磁体22，轴承组件23和叶轮24。穿过转子组件20的横截面被示出在图3中。该磁体22，轴承组件23和叶轮24都通过过盈配合和粘合剂中的一个或组合被直接固定到轴21。该磁体22是通常用于永磁体无刷电机的类型的粘结永磁体。在所示实施例中，磁体22是四极永磁体。该轴承组件23包括一对轴承25a，25b和分离轴承25a，25b的弹簧26。该弹簧26用于预加载轴承25a，25b的外环的每个以减少在使用期间轴承的磨损。垫圈也可以被提供在弹簧26和每个轴承25a、25b之间。
如上所述，转子组件20通过内壁11被支撑在框架10中。轴承组件23被固定在内壁11的孔眼15内部，使得框架10的内壁11充当围绕轴承组件23的防护套筒。这消除了轴承组件23对独立的保护套通的需要，且有助于减小电机1的尺寸和重量。轴承25a、25b的外圈被固定到孔眼15中的内壁11的内周边，且可以例如通过粘接剂固定。
图中所示的叶轮24是轴向叶轮，其具有多个叶片27围绕中心毂28周向地间隔开且从中心毂28径向向外延伸。在使用期间，当每个叶片27旋转时，它产生在特殊频率处的声波。因此可能以这样的方式设计叶轮以减少它的声学冲击。图3和5中所示的叶轮24包括十一个叶片。然而，叶片27的数量可根据电机1和/或电机所要结合的产品的声学需求而不同。
该叶轮24通过加工铝形成。铝是非常轻的材料，且由此通过使用它形成叶轮24，这帮助抵消通过使用锌制造框架10而被包括在电机5中的一些额外重量。本文中描述的电机意图在约75到110krpm的旋转速度之下运行。在这些高速度下作用于叶轮24上的力的大小是巨大的。庆幸的是，尽管是轻的，铝还非常牢固，且因此叶轮24能够抵挡当它在高速度旋转时这些巨大的力。
图3显示了叶轮24的毂28，其在毂的下游侧部包括凹处29。通过具有凹处29，这进一步地减少叶轮24的重量，其更多地抵消使用锌形成框架10而附加的重量。此外，该凹处29是环形的，且提供腔，框架的内壁的轴向延伸部分延伸进入该腔。这在叶轮24的毂28的内侧形成曲径密封，其阻止异物(比如头发或灰尘(其可能损坏转子组件且显著地减少电机的寿命))进入轴承组件23。曲径密封在图4中可见，图6显示了穿过已组装的框架10和转子组件20的横截面。曲径密封在区域S标出。图4显示了框架10的内壁11如何充当围绕轴承组件23的防护套筒，如先前描述的。
图5显示了定子组件40。定子组件40包括两个c形定子芯部50和线轴组件44。每个c形芯部50(也被称为c形芯部)包括背部52和从背部52延伸的两个极臂54。在每个极臂54的端部为极面56。线轴组件44包括中心部分42和从中心部分42延伸的向外延伸臂部部分48。中心部分42限定孔眼，其在电机组装时围绕转子组件20的磁体22。用于在c形芯部50中感生磁场的绕组(未示出)可以绕线轴组件44的臂部部分48缠绕。臂部部分48设置有穿孔49，其允许c形芯部50的极臂54插入穿过线轴组件44的臂部部分48，使得绕组定位为围绕每个极臂54。在臂部部分中的穿孔49还延伸穿过线轴组件44的中心部分42，且开口设置在中心部分42，使得当电机组装时c形芯部50的极面56暴露到磁体22。
线轴组件44包括凹部46，其被配置为与框架10上的凸片16对齐，使得定子组件40可以被固定到框架10。凸片16可被接收到凹部46中，且可以使用粘接剂和/或过盈配合固定在位。图6显示了穿过组装的电机1的横截面图。该视图清楚地示出了定位在线轴组件44的凹部内部的凸片16。凹部46可以足够大，以便于能够容纳凸片16以及一定体积的粘接剂。在组装电机1期间，粘接剂可以被施加到凹部内，或到凸片外侧，或两者，然后将定子组件40和框架10安到一起。
该轴承组件23包括一对轴承72a，72b和分离轴承72a，72b的弹簧73。该弹簧73用于预加载轴承72a，72b的外环的每个以减少在使用期间轴承的磨损。垫圈也可以被提供在弹簧73和每个轴承72a、72b之间。
尽管特殊实施例已被描述，应理解各种修改可在不脱离由权利要求限定的本发明的范围的情况下被做出。

Claims (14)

1.一种电机，包括：
框架；
转子组件，包括磁体、轴承组件、叶轮和轴，所述磁体和轴承组件直接固定到轴；以及
定子组件，包括定子芯部和线轴；
框架，具有内壁和外壁，外壁围绕内壁且限定在外壁和内壁之间的环形通道，且具有扩散叶片，通过环形通道从内壁延伸到外壁，内壁限定孔眼，用于在轴承组件处支撑转子组件，且外壁限定电机的基本圆柱形外壳，其中扩散叶片具有尾部部分，尾部部分向外壁轴向延伸超过内壁，
其中所述磁体相对于轴承组件和内壁二者轴向移位。
2.如权利要求1所述的电机，其中轴承组件包括固定到轴的一对轴承和定位在两个轴承之间的弹簧。
3.如权利要求1所述的电机，其中轴承组件固定在孔眼中，内壁用作围绕轴承组件的防护套筒。
4.如权利要求1所述的电机，其中外壁沿轴向方向在上游方向和下游方向的至少一个中延伸超过内壁。
5.如权利要求1所述的电机，其中内壁包括从内壁的一个端部沿轴向方向延伸的至少一个凸片。
6.如权利要求5所述的电机，其中定子组件包括至少一个凹部，用于接收所述至少一个凸片。
7.如权利要求1所述的电机，其中内壁包括环形突起部，其从内壁的一个端部轴向地延伸，环形突起部可被接收在叶轮的毂中的凹部内。
8.如权利要求1所述的电机，其中叶轮为由铝形成的轴向叶轮，且包括毂和多个附接到毂的叶片。
9.如权利要求8所述的电机，其中毂包括用于接收内壁的轴向延伸的环形突起部的凹部。
10.如权利要求8所述的电机，其中内壁具有基本与毂的外径相匹配的外径。
11.如权利要求1所述的电机，其中框架由锌形成。
12.如权利要求1所述的电机，其中框架包括形成在外壁中的电连接部分。
13.如权利要求12所述的电机，其中电连接部分为铲形端子。
14.如权利要求12所述的电机，其中电连接部分为DC参考连接。
CN201611140022.3A 2015-12-11 2016-12-12 电机 Active CN106877556B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1521892.8A GB2545269B (en) 2015-12-11 2015-12-11 An electric motor
GB1521892.8 2015-12-11

Publications (2)

Publication Number Publication Date
CN106877556A CN106877556A (zh) 2017-06-20
CN106877556B true CN106877556B (zh) 2021-05-18

Family

ID=55274598

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201621361107.XU Active CN206272382U (zh) 2015-12-11 2016-12-12 电机
CN201611140022.3A Active CN106877556B (zh) 2015-12-11 2016-12-12 电机

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201621361107.XU Active CN206272382U (zh) 2015-12-11 2016-12-12 电机

Country Status (11)

Country Link
US (1) US11128198B2 (zh)
EP (1) EP3387741B1 (zh)
JP (2) JP7039168B2 (zh)
KR (2) KR102384550B1 (zh)
CN (2) CN206272382U (zh)
AU (1) AU2016366626B2 (zh)
BR (1) BR112018011654A2 (zh)
GB (1) GB2545269B (zh)
MX (1) MX2018006980A (zh)
RU (1) RU2696857C1 (zh)
WO (1) WO2017098203A1 (zh)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2545269B (en) * 2015-12-11 2018-02-28 Dyson Technology Ltd An electric motor
JPWO2017169033A1 (ja) * 2016-03-29 2018-11-22 三菱電機株式会社 電動送風機及びこの電動送風機を備えた電気掃除機
GB2563612B (en) 2017-06-20 2020-09-23 Dyson Technology Ltd An electric motor
GB2563614B (en) 2017-06-20 2020-06-17 Dyson Technology Ltd Brushless motor
KR102382057B1 (ko) * 2017-08-09 2022-04-04 삼성전자주식회사 흡입 모터 및 이를 구비한 진공청소기
GB2571554B (en) * 2018-03-01 2020-09-30 Dyson Technology Ltd An electric motor
GB2571555B (en) * 2018-03-01 2021-02-24 Dyson Technology Ltd An electric motor
CN108233655A (zh) * 2018-03-13 2018-06-29 昆山雅力康电子科技有限公司 一种可变风道高速电机
CN208522581U (zh) * 2018-08-24 2019-02-19 深圳新思控科技有限公司 用于电吹风上的无刷电机和风道壳体
CN109538638A (zh) 2018-12-14 2019-03-29 宁波达尔机械科技有限公司 高速转子及其装配方法
CN111009984B (zh) * 2020-01-18 2020-08-14 台州市鑫屏机电有限公司 一种可于高温时自动对电机进行降温的保护罩
DE102020105987A1 (de) 2020-03-05 2021-09-09 Miele & Cie. Kg Strömungsmaschine sowie Haushalts- oder Küchengerät hiermit
DE102020105981A1 (de) 2020-03-05 2021-09-09 Miele & Cie. Kg Strömungsmaschine sowie Haushalts- oder Küchengerät hiermit
KR102311693B1 (ko) 2020-03-16 2021-10-12 엘지전자 주식회사 모터
KR102311692B1 (ko) 2020-03-16 2021-10-12 엘지전자 주식회사 모터
US11425979B2 (en) 2020-04-01 2022-08-30 Omachron Intellectual Property Inc. Hair dryer
US11457713B2 (en) 2020-04-01 2022-10-04 Omachron Intellectual Property Inc. Hair dryer
US11425980B2 (en) 2020-04-01 2022-08-30 Omachron Intellectual Property Inc. Hair dryer
US11857052B2 (en) 2020-04-01 2024-01-02 Omachron Intellectual Property Inc. Water separator for a hair dryer
US11517091B2 (en) 2020-04-01 2022-12-06 Omachron Intellectual Property Inc. Hair dryer
KR102351793B1 (ko) 2020-04-29 2022-01-17 엘지전자 주식회사 모터 조립체 및 이를 구비한 헤어드라이어
KR102327895B1 (ko) 2020-04-29 2021-11-17 엘지전자 주식회사 모터 조립체 및 이를 구비한 헤어드라이어
KR102327896B1 (ko) 2020-05-06 2021-11-17 엘지전자 주식회사 모터 조립체 및 이를 구비한 헤어드라이어
CN111654141A (zh) * 2020-06-03 2020-09-11 宁波大学 一种电磁感应式轴承转速测量装置及测量方法
KR20220010975A (ko) 2020-07-20 2022-01-27 엘지전자 주식회사 모터 조립체 및 이를 구비한 헤어드라이어
KR102499760B1 (ko) 2020-12-30 2023-02-15 엘지전자 주식회사 모터 조립체
GB2608832A (en) * 2021-07-13 2023-01-18 Dyson Technology Ltd A brushless motor
JP2023082690A (ja) * 2021-12-02 2023-06-14 東莞市能博旺▲動▼力科技有限公司 高速送風モータ
KR102428968B1 (ko) * 2021-12-03 2022-08-04 주진 토로이달 권선 모터와 슬롯리스 모터의 장점을 갖는 전기모터, 및 그 제조방법
BE1030312B1 (de) 2022-02-23 2023-10-02 Miele & Cie Strömungsmaschine
DE102022104670A1 (de) 2022-02-28 2023-08-31 Miele & Cie. Kg Strömungsmaschine
CN217335308U (zh) 2022-04-11 2022-08-30 东莞市驰驱电机有限公司 一种用于吹风筒的高速无刷电机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183400U (zh) * 1987-05-13 1988-11-25
CN101523701A (zh) * 2006-09-29 2009-09-02 日本电产三协株式会社 风扇电动机

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4819392Y1 (zh) * 1966-04-15 1973-06-02
US3495111A (en) * 1967-12-04 1970-02-10 Tri Tech Small permanent magnet rotor shaded pole motor
US3593049A (en) 1969-10-02 1971-07-13 Siemens Ag Dc midget motor free of commutator and slip rings
JPS4819392B1 (zh) 1970-06-02 1973-06-13
JPS5448306A (en) 1977-08-29 1979-04-16 Howa Mach Ltd Valve device of reciprocating compressor
US4166265A (en) 1978-02-03 1979-08-28 Amp Incorporated Coil bobbins and termination of coil windings
US4333026A (en) * 1980-12-08 1982-06-01 General Motors Corporation Stepping motor
JPS60134401A (ja) 1983-12-22 1985-07-17 株式会社デンソー 内燃機関用点火コイルの外付抵抗器
DE3710622A1 (de) * 1987-03-31 1988-10-20 Zubler Geraetebau Motorkuehlung
IT8819772A0 (it) * 1988-03-15 1988-03-15 Honeywell Bull Spa Dispositivo selettivo a terra per apparecchiature elettroniche.
IT1225584B (it) * 1988-07-26 1990-11-22 Nowax S R L A Cassa di motore elettrico a doppio mantello con ventilazione a convogliamento forzato
JPH0744803B2 (ja) 1989-12-27 1995-05-15 三菱電機株式会社 電動機
JPH0487547A (ja) * 1990-07-25 1992-03-19 Matsushita Electric Works Ltd 送風用無刷子電動機
NL9002222A (nl) * 1990-10-12 1992-05-06 Airpax Sa Nv Electromotor, alsmede houder ten gebruike in de electromotor.
US6348752B1 (en) 1992-04-06 2002-02-19 General Electric Company Integral motor and control
USRE36545E (en) * 1993-09-30 2000-02-01 Steiner; Robert E. Twin bobbin four pole motors and methods for making same
US5943760A (en) 1996-02-09 1999-08-31 Eastman Kodak Company Stepper motor and method of manufacture
JPH10191590A (ja) * 1996-12-25 1998-07-21 Shimadzu Corp 送風機
JP2000245109A (ja) * 1999-02-18 2000-09-08 Toshiba Corp 永久磁石電動機
WO2000074520A1 (fr) * 1999-06-08 2000-12-14 Sanyo Electric Co., Ltd. Seche-cheveux
GB2362268B (en) 2000-05-12 2005-05-11 Notetry Ltd Electrical machine
JP3718120B2 (ja) 2000-12-05 2005-11-16 株式会社荏原製作所 突極集中巻線電動機
DE10161367A1 (de) * 2001-12-14 2003-07-03 Conti Temic Microelectronic Elektrische Antriebseinheit
ES2412181T3 (es) * 2003-01-10 2013-07-10 Askoll Holding S.R.L. Motor eléctrico síncrono con un rotor de imán permanente y carretes de soporte mejorados para bombas de circulación de sistemas de calefacción y climatización de aire
JP4904894B2 (ja) * 2005-04-21 2012-03-28 日本電産株式会社 軸流ファン
JP4819392B2 (ja) 2005-04-28 2011-11-24 キヤノン株式会社 走査光学装置及びそれを用いた画像形成装置
KR100697025B1 (ko) * 2005-06-09 2007-03-20 엘지전자 주식회사 리니어 압축기
EP1746290A1 (de) * 2005-07-20 2007-01-24 Rietschle Thomas Schopfheim GmbH Radialverdichter
CN100467850C (zh) * 2005-09-06 2009-03-11 株式会社电装 流体泵和电马达及其制造方法
US8427020B2 (en) * 2006-04-20 2013-04-23 Carefusion 212, Llc Blower assembly with integral injection molded suspension mount
EP1862675B1 (en) * 2006-05-31 2009-09-30 Robert Bosch GmbH Axial fan assembly
UA19483U (en) 2006-06-27 2006-12-15 Svilto Shakhtaria Kharkiv Mach Headlight of miner's lamp
RU2410818C1 (ru) * 2007-05-14 2011-01-27 Сандайн Корпорейшн Электрическая машина с системой воздушного охлаждения
AU2008202487B2 (en) * 2007-06-05 2013-07-04 Resmed Motor Technologies Inc. Blower with Bearing Tube
JP5169033B2 (ja) 2007-06-12 2013-03-27 日本電産株式会社 軸流ファン
CN201180678Y (zh) * 2008-01-25 2009-01-14 台达电子工业股份有限公司 经动态平衡调整的风扇结构
WO2009121226A1 (zh) * 2008-04-03 2009-10-08 Tian Yu 无刷直流电机及其散热装置
JP5322028B2 (ja) * 2009-02-24 2013-10-23 株式会社Ｉｈｉ モータロータ
GB2467966B (en) * 2009-02-24 2013-04-03 Dyson Technology Ltd Rotor assembly
US8419386B2 (en) * 2009-07-02 2013-04-16 Sunonwealth Electric Machine Industry Co., Ltd. DC motor with cup-shaped stator and DC fan formed from the DC motor
JP5486890B2 (ja) * 2009-09-30 2014-05-07 ミネベア株式会社 ファンモータ
US8157524B2 (en) * 2009-12-03 2012-04-17 Robert Bosch Gmbh Axial flow fan with hub isolation slots
JP2012087748A (ja) 2010-10-22 2012-05-10 Nippon Densan Corp 送風ファン
GB2486890B (en) * 2010-12-23 2017-09-06 Dyson Technology Ltd A fan
US8497611B2 (en) * 2011-04-22 2013-07-30 Regal Beloit America, Inc. Motor end frame
GB2493975B (en) * 2011-08-26 2015-02-11 Dyson Technology Ltd Turbomachine
GB2493974B (en) * 2011-08-26 2014-01-15 Dyson Technology Ltd Bearing assembly
GB2495547B (en) * 2011-10-14 2015-06-03 Dyson Technology Ltd Permanent-magnet brushless motor
US8963392B2 (en) * 2012-04-13 2015-02-24 Regal Beloit America, Inc. Axial load sharing bearing system and associated method of use
GB2502104B (en) * 2012-05-16 2016-01-27 Dyson Technology Ltd A fan
JP5983929B2 (ja) 2012-08-20 2016-09-06 日立工機株式会社 携帯用ブロワ
US9531242B2 (en) * 2012-12-31 2016-12-27 Teco-Westinghouse Motor Company Apparatuses and methods for cooling electric machines
US10447102B2 (en) * 2013-03-15 2019-10-15 Regal Beloit Australia Pty. Ltd. Permanent magnet electrical machines and methods of assembling the same
GB2513661B (en) * 2013-05-03 2016-03-16 Dyson Technology Ltd Vibration isolation mount
GB2524422B (en) * 2013-05-03 2016-01-06 Dyson Technology Ltd Compressor
JP6167434B2 (ja) 2013-09-30 2017-07-26 ミネベアミツミ株式会社 ブラシレスモータ及びそのモータを用いた送風機
EP2961038B1 (en) * 2014-06-05 2019-12-11 Samsung Electronics Co., Ltd. Vacuum cleaner with motor assembly
EP3015713A1 (en) * 2014-10-30 2016-05-04 Nidec Corporation Blower apparatus
US9819246B2 (en) * 2015-01-13 2017-11-14 Regal Beloit America, Inc. Electrical machine and controller and methods of assembling the same
JP2016211533A (ja) * 2015-04-28 2016-12-15 日本電産株式会社 送風装置および掃除機
WO2017082224A1 (ja) * 2015-11-09 2017-05-18 日本電産株式会社 送風装置、および掃除機
GB2545414B (en) * 2015-12-11 2019-03-13 Dyson Technology Ltd A handheld product having a motor
GB2545269B (en) * 2015-12-11 2018-02-28 Dyson Technology Ltd An electric motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183400U (zh) * 1987-05-13 1988-11-25
CN101523701A (zh) * 2006-09-29 2009-09-02 日本电产三协株式会社 风扇电动机

Also Published As

Publication number Publication date
JP6851446B2 (ja) 2021-03-31
MX2018006980A (es) 2018-09-05
JP2017143723A (ja) 2017-08-17
AU2016366626A1 (en) 2018-05-24
WO2017098203A1 (en) 2017-06-15
GB2545269A (en) 2017-06-14
GB201521892D0 (en) 2016-01-27
US20170170709A1 (en) 2017-06-15
KR20180069914A (ko) 2018-06-25
CN106877556A (zh) 2017-06-20
BR112018011654A2 (pt) 2018-12-04
RU2696857C1 (ru) 2019-08-07
GB2545269B (en) 2018-02-28
EP3387741B1 (en) 2020-04-29
US11128198B2 (en) 2021-09-21
CN206272382U (zh) 2017-06-20
JP2019208361A (ja) 2019-12-05
EP3387741A1 (en) 2018-10-17
AU2016366626B2 (en) 2019-08-01
KR20190133805A (ko) 2019-12-03
KR102384550B1 (ko) 2022-04-08
JP7039168B2 (ja) 2022-03-22

Similar Documents

Publication Publication Date Title
CN106877556B (zh) 电机
KR102281734B1 (ko) 전기 기계
JP3168007U (ja) 送風機
EP3759794B1 (en) Brushless motor
KR102349826B1 (ko) 브러시레스 모터
AU2016366624A1 (en) An electric motor
US9140265B2 (en) Blower
US20050116579A1 (en) Motor for blowers
JP7025560B2 (ja) 電気モータ
KR102200078B1 (ko) 팬 모터

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant