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WO2020042912A1 - 一种分段铁芯以及盘式电机 - Google Patents

一种分段铁芯以及盘式电机 Download PDF

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Publication number
WO2020042912A1
WO2020042912A1 PCT/CN2019/100587 CN2019100587W WO2020042912A1 WO 2020042912 A1 WO2020042912 A1 WO 2020042912A1 CN 2019100587 W CN2019100587 W CN 2019100587W WO 2020042912 A1 WO2020042912 A1 WO 2020042912A1
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WO
WIPO (PCT)
Prior art keywords
smc
iron core
laminated
segmented
core
Prior art date
Application number
PCT/CN2019/100587
Other languages
English (en)
French (fr)
Inventor
汤磊
陈坤林
李一雄
Original Assignee
浙江盘毂动力科技有限公司
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.)
Filing date
Publication date
Priority claimed from CN201811008331.4A external-priority patent/CN108696005B/zh
Priority claimed from CN201811008350.7A external-priority patent/CN108736597B/zh
Application filed by 浙江盘毂动力科技有限公司 filed Critical 浙江盘毂动力科技有限公司
Priority to EP19854152.6A priority Critical patent/EP3846318A4/en
Priority to JP2021511601A priority patent/JP7153403B2/ja
Priority to US17/272,038 priority patent/US11929641B2/en
Publication of WO2020042912A1 publication Critical patent/WO2020042912A1/zh
Priority to US18/393,691 priority patent/US20240128807A1/en

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    • 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
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • 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
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • 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

Definitions

  • the invention relates to the technical field of motors, and more particularly, to a segmented iron core and a disc motor.
  • the disc core of a disc motor is divided into an integral core and a segmented core.
  • the disc core is a segmented core.
  • segmented iron cores are generally formed by stacking a variety of silicon steel sheets with different cross-section sizes or by integrally forming an SMC. It is made by laminating multiple silicon steel sheets with different cross-section sizes. More types of silicon steel sheets lead to the need for more specifications of the mold, which increases the difficulty of the process. There are also methods that use SMC integrated molding, although it is easy to mold. Poor electromagnetic performance, low magnetic permeability and large losses.
  • the technical problem to be solved by the present invention is how to improve the electromagnetic performance based on reducing the manufacturing difficulty of the segmented iron core.
  • the present invention provides a segmented iron core and a disc motor.
  • the present invention provides the following technical solutions:
  • a segmented iron core includes a laminated iron core and an SMC iron core, the SMC iron core is spliced and covered on the outer periphery of the laminated iron core, and the SMC iron core is spliced and installed inside a prefabricated coil, or the The SMC core is directly wound around the coil.
  • the SMC iron core includes a first SMC iron core and a second SMC iron core, and the first SMC iron core and the second SMC iron core are covered with the laminated iron by splicing.
  • the first SMC iron core and the second SMC iron core are spliced and installed inside a prefabricated coil or the coil is directly wound around the outer periphery of the SMC iron core.
  • the first SMC iron core includes an SMC wire rod and an SMC embedded groove adapted to the laminated core, and the SMC embedded groove is a non-penetrating structure or a penetrating structure.
  • an end of the SMC wire rod facing away from the embedded groove of the SMC is provided with an SMC pole shoe.
  • an end of the SMC bar near the embedded groove of the SMC is provided with a first positioning protrusion and / or a first positioning hole adapted to the second SMC core.
  • one end of the SMC wire rod provided with the SMC embedded groove is provided with a second positioning protrusion and / or a second positioning hole adapted to the second SMC iron core.
  • the first positioning protrusion and the first positioning hole are symmetrically disposed, and the The size of the first positioning protrusion is matched with the size of the first positioning hole;
  • the second positioning protrusion and the second positioning hole are provided at the same time, the second positioning protrusion and the second positioning hole are arranged symmetrically, and the size and position of the second positioning protrusion The size of the second positioning hole is adapted.
  • the structure of the second SMC iron core is the same as that of the first SMC iron core.
  • the laminated core is formed by laminating a plurality of laminated sheets, and the laminated sheet is a silicon steel sheet or an amorphous alloy sheet.
  • the laminated core is formed by laminating laminated sheets of the same size, or the laminated core is formed by laminating multiple pieces of tapered sheets.
  • the invention also discloses a disc motor, which includes a first stator plate, a segmented iron core, a stator internal support, a second stator plate, and a casing.
  • Each segmented iron core is composed of the first stator plate and the second stator.
  • the cleat and the stator are internally supported and fixed in the casing, and the segmented iron core is the segmented iron core according to any one of the above.
  • the segmented core in the present invention uses the SMC core to cover the entire exterior of the laminated core.
  • the difficult-to-machine shape is processed by the easily-formable SMC core.
  • the overall structure of the laminated core is relatively single, so The number of molds for processing laminated cores is small, and the molds are easy to process, which reduces the processing difficulty of the segmented cores.
  • the electromagnetic performance of the segmented iron core is higher than that of the SMC material alone, and the utilization rate of the iron core is higher than that of the laminated core alone.
  • the SMC core is a spliced structure
  • the SMC core is spliced and installed inside a pre-made coil, such as a rectangular copper wire pre-formed coil. Therefore, no winding is required, and production efficiency is improved.
  • the coil is wound directly around the SMC core.
  • the invention also discloses another segmented iron core, which includes a laminated iron core and an SMC iron core wound with a coil.
  • the SMC iron core is covered on the outer peripheral surface of the laminated iron core.
  • the SMC iron core includes an SMC wire rod and an SMC embedded groove provided in the SMC wire rod, wherein an outer peripheral surface of the SMC wire rod is used for setting a coil, and the SMC The built-in groove is used to install the laminated core.
  • a first SMC pole shoe is provided on one end surface of the SMC wire rod.
  • a second SMC pole shoe is provided on an end surface of the SMC wire rod opposite to the first SMC pole shoe.
  • the SMC embedded groove has a rectangular structure.
  • the SMC embedded groove is provided with a plurality of step portions.
  • the laminated core is formed by laminating multiple laminated sheets, and the laminated sheet is a silicon steel sheet, an amorphous alloy sheet, a permalloy sheet, or an iron-cobalt alloy sheet.
  • the laminated core is formed by laminating laminated sheets of the same size.
  • the laminated core is formed by laminating a plurality of laminated pieces with gradually smaller sizes.
  • the invention also discloses a disc motor including a segmented iron core according to any one of the above.
  • the segmented iron core in the present invention is covered with the SMC iron core on the outer peripheral surface of the laminated core, and the shape that is not easy to be processed is processed by the easily formed SMC core.
  • the overall structure of the sheet iron core is relatively single. Therefore, the mold specifications for processing the laminated core are less, and the mold is easy to process, which reduces the processing difficulty of the segmented iron core.
  • the electromagnetic performance of the segmented iron core is higher than that of the SMC material alone, and the utilization rate of the iron core is higher than that of the laminated core alone.
  • FIG. 1 is a schematic diagram of an explosion structure of a segmented iron core according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a three-dimensional structure of a segmented iron core according to an embodiment of the present invention after splicing;
  • FIG. 3 is a schematic diagram of a three-dimensional structure of a first SMC core provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an explosion structure of another segmented iron core according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an explosion structure of yet another segmented iron core according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a three-dimensional structure after stitching of another segmented iron core according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an explosion structure of still another segmented iron core according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a three-dimensional structure after the splicing of another segmented iron core according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural perspective view of a disc motor provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an explosion structure of still another disc motor according to an embodiment of the present invention.
  • FIG. 11 is a schematic perspective structural diagram of still another disc motor according to an embodiment of the present invention.
  • FIG. 12 is a schematic perspective view of another SMC iron core structure according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an explosion structure of yet another segmented iron core according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of an explosion structure of yet another segmented iron core according to an embodiment of the present invention.
  • 100 is an SMC core
  • 200 is a laminated core
  • 300 is a coil
  • 400 is a first stator plate
  • 500 is a second stator plate
  • 600 is a stator internal support
  • 700 is a machine.
  • 101 is the first SMC core
  • 102 is the second SMC core
  • 1011 is the SMC wire rod
  • 1012 is the SMC embedded slot
  • 1013 is the SMC pole shoe
  • 1014 is the first positioning protrusion
  • 1015 is the first positioning Hole
  • 1016 is the second positioning protrusion
  • 1017 is the second positioning hole
  • 100 ' is the SMC core
  • 200' is the laminated core
  • 300 ' is the coil
  • 101' is the SMC bar
  • 102 ' is the SMC embedded slot
  • 103' is the first SMC pole shoe.
  • 1021' denotes a stepped portion.
  • Disk motor is also called axial magnetic field motor.
  • the direction of the magnetic field inside the motor is along the axial direction. Because axial magnetic field motors are generally flat, they are also called disk motors.
  • Soft magnetic composite material is a magnetic core made of pressed iron powder coated with a special insulating material, which can be manufactured into flexible shapes according to actual needs.
  • the core of the present invention is to provide a segmented iron core and a disc motor to improve the electromagnetic performance on the basis of reducing the manufacturing difficulty of the segmented iron core.
  • the segmented iron core disclosed in the embodiment of the present invention includes a laminated iron core 200 and an SMC iron core 100.
  • the SMC iron core 100 is spliced and covered on the outer periphery of the laminated iron core 200.
  • the SMC iron core After being spliced and installed inside the pre-made coil, or the coil is directly wound around the outer periphery of the SMC core.
  • the segmented iron core in the present invention uses the SMC iron core 100 to cover the entire exterior of the laminated iron core 200.
  • the difficult-to-machine shape is processed by the easily-formable SMC iron core 100.
  • the overall structure of the laminated iron core 200 is relatively single, so The specifications of the mold for processing the laminated core 200 are small, and the mold is easy to process, which reduces the processing difficulty of the segmented core.
  • the electromagnetic performance of the segmented iron core is higher than that of the SMC material alone, and the utilization rate of the iron core is higher than that of the laminated core 200 alone.
  • the SMC iron core 100 is a spliced structure
  • the SMC iron core 100 is spliced and installed inside a prefabricated coil, such as a rectangular copper wire preformed coil. Therefore, no winding is required, and production efficiency is improved.
  • the coil is directly wound around the outer periphery of the SMC core 100.
  • the SMC core 100 can cover the entire outside of the laminated core 200, and the laminated core 200 is all located inside the SMC core 100.
  • the SMC core 100 covers the outer periphery of the laminated core 200, and the two ends of the laminated core 200 are not wrapped.
  • the SMC iron core 100 covers the entire periphery or a part of the periphery of the laminated core 200, and when a part of the periphery is wrapped, a part of the laminated core 200 is exposed to the outside, and a part of the laminated core 200 may be exposed to the outside, or both ends may be partially exposed to the outside.
  • the SMC iron core 100 includes a first SMC iron core 101 and a second SMC iron core 102.
  • the first SMC iron core 101 and the second SMC iron core 102 are covered by splicing to cover the entire exterior of the laminated iron core 200.
  • the core 101 and the second SMC iron core 102 are spliced and installed inside a prefabricated coil 300 (for example, a rectangular copper wire preformed coil) or the coil 300 is directly wound around the outer periphery of the SMC iron core 100.
  • the shape of the SMC embedded groove 1012 in the embodiment of the present invention matches the shape of the laminated core 200.
  • the SMC embedded groove 1012 has a rectangular structure; or the SMC embedded groove 1012 is provided. There are multiple steps.
  • the structures of the first SMC iron core 101 and the second SMC iron core 102 are the same or different.
  • the first SMC core 101 includes an SMC wire rod 1011 and an SMC embedded groove 1012 adapted to the laminated core 200.
  • the SMC embedded groove 1012 is a non-penetrating structure or a penetrating structure. .
  • the embedded grooves in the first SMC iron core 101 and the second SMC iron core 102 are butted, and spliced into the entire laminated core 200 Shape structure.
  • an end of the SMC wire rod 1011 facing away from the SMC embedded groove 1012 is provided with an SMC pole shoe 1013.
  • an end of the SMC wire rod 1011 near the SMC embedded groove 1012 is provided with a first positioning protrusion adapted to the second SMC iron core 102. From 1014 and / or the first positioning hole 1015.
  • the first positioning protrusion 1014 of the first SMC core 101 and the first positioning hole 1015 of the second SMC core 102 are matched, and the first positioning hole 1015 of the first SMC core 101 and the second SMC core 102 The first positioning protrusion 1014 cooperates.
  • the first SMC iron core 101 may be provided with only one of the first positioning protrusion 1014 and the first positioning hole 1015, or both of them may be provided, and the second SMC iron core 102 is provided with a corresponding structure corresponding thereto. Just cooperate.
  • an end of the SMC wire rod 1011 near the SMC embedded groove 1012 is provided with a second positioning protrusion 1016 and / or a second positioning hole 1017 adapted to the second SMC core 102.
  • the first positioning protrusion 1014 of the first SMC core 101 and the second positioning hole 1017 of the second SMC core 102 are matched, and the first positioning hole 1017 of the first SMC core 101 and the second SMC core 102
  • the second positioning protrusion 1016 cooperates.
  • the first SMC iron core 101 may be provided with only one of the second positioning protrusion 1016 and the second positioning hole 1017, or both of them may be provided, and the second SMC iron core 102 is provided with a corresponding structure corresponding thereto. Just cooperate.
  • the first positioning protrusion 1014 and the first positioning hole 1015 are arranged symmetrically, and the size of the first positioning protrusion 1014 is similar to that of the first positioning hole 1015.
  • the second positioning protrusion 1016 and the second positioning hole 1017 are symmetrically arranged, and the size of the second positioning protrusion 1016 and the size of the second positioning hole 1017 are matched.
  • the first SMC iron core 101 and the second SMC iron core 102 have the same structure, and the first SMC iron core 101 and the second SMC iron core 102 can be processed using the same mold.
  • the laminated core 200 is formed by laminating multiple laminated sheets, and the laminated sheet is a silicon steel sheet or an amorphous alloy sheet.
  • the structure of the laminated sheet for laminated laminated core 200 is relatively simple. For example, to facilitate the processing of a rectangular structure, laminated sheets of the same size can form a laminated sheet of rectangular structure during the laminated process. Iron core 200.
  • the laminated core 200 may be formed by laminating multiple laminated pieces of different sizes.
  • the lamination core 200 is formed by laminating three laminations with gradually smaller sizes, each of which The middle laminations have the same size and the adjacent segments have different sizes.
  • the invention also discloses a disc motor, which includes a first stator plate 400, a segmented iron core, a stator internal support 600, a second stator plate 500, and a casing 700.
  • Each of the segmented iron cores is composed of the first stator plate 400, the second The stator clamp plate 500 and the stator inner support 600 are fixed in the housing 700, and the segmented iron core is a segmented iron core as in any one of the above. Since the above-mentioned segmented iron core has the above advantages, the disc motor including the above-mentioned segmented iron core also has corresponding effects, which will not be repeated here.
  • the segmented iron core disclosed in the embodiment of the present invention includes an SMC iron core 100 ′ and a laminated iron core 200 ′ wound around a coil 300 ′.
  • the SMC iron core 100 ′ is covered on the laminated iron core 200. 'The peripheral surface.
  • the segmented iron core in the present invention is covered with the SMC iron core 100 'on the outer peripheral surface of the laminated iron core 200'.
  • the shape that is not easy to be processed is processed by the easily formed SMC iron core 100 ', and the overall structure of the laminated iron core 200' Relatively single, therefore, there are fewer mold specifications for processing the laminated core 200 ', and the mold is easy to process, which reduces the processing difficulty of the segmented core.
  • the electromagnetic performance of the segmented iron core is higher than that of using only SMC material, and the utilization ratio of the iron core is higher than that of simply using laminated core 200 '.
  • the SMC core 100 covers the outer peripheral surface of the laminated core 200', and both ends of the laminated core 200 'are not wrapped.
  • the SMC core 100 ' covers the entire outer peripheral surface of the laminated core 200', or a part of the outer peripheral surface.
  • a part of the laminated core 200 ' is exposed to the outside, and a part of the laminated core 200' may be exposed to the outside, or two The end has a portion exposed.
  • the SMC core 100 ' includes an SMC wire rod 101' and an SMC embedded groove 102 'provided in the SMC wire rod 101', wherein an outer peripheral surface of the SMC wire rod 101 'is used to set a coil 300' and an SMC embedded groove 102 ' Install the laminated core 200 '.
  • the shape of the SMC embedded groove 102 ′ matches the shape of the outer peripheral surface of the laminated core 200 ′.
  • the SMC embedded groove 102 ′ has a rectangular structure; or The SMC embedded groove 102 'is provided with a plurality of step portions 1021'.
  • one end face of the SMC wire rod 101 ' is provided with a first SMC pole shoe 103'.
  • a second SMC pole shoe 104 ' is provided on an end surface of the SMC wire rod 101' opposite to the first SMC pole shoe 103 '.
  • the laminated core 200 ' is formed by laminating multiple laminated sheets, and the laminated sheets are silicon steel sheets, amorphous alloy sheets, permalloy sheets, or iron-cobalt alloy sheets.
  • the structure of the laminated sheet used for laminated laminated core 200 ′ is relatively simple. For example, to facilitate processing of a rectangular structure, laminated sheets of the same size can form a rectangular laminated sheet during the laminating process. Sheet iron core 200 '.
  • the laminated core 200 ′ may be laminated by laminating multiple pieces with different sizes.
  • the lamination core 200 ' is formed by laminating multiple pieces of gradually smaller laminations, as shown in the figure.
  • the structure with three sections of laminations is introduced in detail, in which the size of the laminations in each section is the same and the sizes of adjacent sections are different.
  • the invention also discloses a disc motor including a segmented iron core according to any one of the above. Since the above-mentioned segmented iron core has the above advantages, the disc motor including the above-mentioned segmented iron core also has corresponding effects, which will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

一种分段铁芯以及盘式电机，该分段铁芯采用SMC铁芯（100，100'）包覆在叠片铁芯（200，200'）的外周面，不易加工的外形由易成形的SMC铁芯（100，100'）加工而成，叠片铁芯（200，200'）整体结构相对单一，因此，加工叠片铁芯（200，200'）的模具规格较少，且模具容易加工，降低了该分段铁芯的加工难度。且该分段铁芯的电磁性能比单纯使用SMC材料高，铁芯利用率比单纯使用叠片铁芯（200，200'）高。

Description

一种分段铁芯以及盘式电机
本申请要求于2018年08月31日提交中国专利局、申请号为201811008331.4、发明名称为“一种分段铁芯以及盘式电机”和申请号为201811008350.7、发明名称为“一种分段铁芯以及盘式电机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电机技术领域，更具体地说，涉及一种分段铁芯以及盘式电机。
背景技术
盘式电机的盘式铁芯分为整体铁芯和分段铁芯。对于大多数的中间单定子的盘式电机结构，盘式铁芯都是采用分段铁芯。
目前，分段铁芯一般采用多种不同截面尺寸的硅钢片堆叠而成或者SMC一体成型的方法。采用多种不同截面尺寸的硅钢片叠压而成，较多规格的硅钢片种类导致需要较多规格的模具，增加了工艺难度；也有采用SMC一体成型的方法虽然容易成型，但是，SMC材料的电磁性能较差，磁导率不高同时损耗较大。
因此，如何降低分段铁芯的制造难度的基础上提高电磁性能，成为本领域技术人员亟待解决的技术问题。
发明内容
有鉴于此，本发明所要解决的技术问题是如何降低分段铁芯的制造难度的基础上提高电磁性能，为此，本发明提供了一种分段铁芯以及盘式电机。
为实现上述目的，本发明提供如下技术方案：
一种分段铁芯，包括叠片铁芯和SMC铁芯，所述SMC铁芯经拼接包覆在所述叠片铁芯的外周，所述SMC铁芯经拼接安装在预制线圈内部，或者所述SMC铁芯直接缠绕线圈。
优选地，在上述分段铁芯中，所述SMC铁芯包括第一SMC铁芯和第二SMC铁芯，所述第一SMC铁芯和第二SMC铁芯通过拼接包覆在所述叠片铁芯的外周，所述第一SMC铁芯和第二SMC铁芯拼接后安装在预制线圈内部或者所述线圈直接缠绕在所述SMC铁芯外周。
优选地，在上述分段铁芯中，所述第一SMC铁芯包括SMC线棒和与所述叠片铁芯相适配的SMC内嵌槽，所述SMC内嵌槽为非贯穿结构或贯穿结构。
优选地，在上述分段铁芯中，所述SMC线棒背离所述SMC内嵌槽的一端设置有SMC极靴。
优选地，在上述分段铁芯中，所述SMC线棒靠近所述SMC内嵌槽的一端设置有与所述第二SMC铁芯相适配的第一定位凸起和/或第一定位孔。
优选地，在上述分段铁芯中，所述SMC线棒设置所述SMC内嵌槽的一端设置有与所述第二SMC铁芯相适配的第二定位凸起和/或第二定位孔。
优选地，在上述分段铁芯中，当同时设置有所述第一定位凸起和所述第一定位孔时，所述第一定位凸起和所述第一定位孔对称设置，且，所述第一定位凸起的尺寸和所述第一定位孔的尺寸相适配；
当同时设置有所述第二定位凸起和所述第二定位孔时，所述第二定位凸起和所述第二定位孔对称设置，且，所述第二定位凸起的尺寸和所述第二定位孔的尺寸相适配。
优选地，在上述分段铁芯中，所述第二SMC铁芯与所述第一SMC铁芯的结构相同。
优选地，在上述分段铁芯中，所述叠片铁芯为由多个叠片叠压而成，所述叠片为硅钢片或非晶合金片。
优选地，在上述分段铁芯中，所述叠片铁芯由同一尺寸的叠片叠压而成，或者所述叠片铁芯由多段尺寸逐渐变小的叠片叠压而成。
本发明还公开了一种盘式电机，包括第一定子夹板、分段铁芯、定子内支撑、第二定子夹板和机壳，各个分段铁芯由所述第一定子夹板、所述第二定子夹板和定子内支撑固定在所述机壳内，所述分段铁芯为如上述任一项所述的分段铁芯。
本发明中的分段铁芯采用所述SMC铁芯包覆在所述叠片铁芯的整个外部，不易加工的外形由易成形的SMC铁芯加工而成，叠片铁芯整体结构相对单一，因此，加工叠片铁芯的模具规格较少，且模具容易加工，降低了该分段铁芯的加工难度。且该分段铁芯的电磁性能比单纯使用SMC材料高，铁芯利用率比单纯使用叠片铁芯高。
另外，由于该SMC铁芯为拼接结构，因此，SMC铁芯经拼接安装在预制线圈内部，例如扁铜线预成型线圈。从而不需要进行缠绕，提高生产效率。或者，线圈直接缠绕在SMC铁芯外周。
本发明还公开理另一种分段铁芯，包括叠片铁芯和缠绕线圈的SMC铁芯，所述SMC铁芯包覆在所述叠片铁芯的外周面。
优选地，在上述分段铁芯中，所述SMC铁芯包括SMC线棒和设置在所述SMC线棒的SMC内嵌槽，其中，所述SMC线棒的外周面用于设置线圈，所述SMC内嵌槽安装所述叠片铁芯。
优选地，在上述分段铁芯中，所述SMC线棒的一个端面设置有第一SMC极靴。
优选地，在上述分段铁芯中，所述SMC线棒的与设置所述第一SMC极靴相对的端面设置有第二SMC极靴。
优选地，在上述分段铁芯中，所述SMC内嵌槽为矩形结构。
优选地，在上述分段铁芯中，所述SMC内嵌槽设置有多个台阶部。
优选地，在上述分段铁芯中，所述叠片铁芯为由多个叠片叠压而成，所述叠片为硅钢片、非晶合金片或坡莫合金片或者铁钴合金片。
优选地，在上述分段铁芯中，所述叠片铁芯由同一尺寸的叠片叠压而成。
优选地，在上述分段铁芯中，所述叠片铁芯由多段尺寸逐渐变小的叠片叠压而成。
本发明还公开了一种盘式电机，包括如上述中任一项所述的分段铁芯。
从上述的技术方案可以看出，本发明中的分段铁芯采用所述SMC铁芯包覆在所述叠片铁芯的外周面，不易加工的外形由易成形的SMC铁芯加工而成，叠片铁芯整体结构相对单一，因此，加工叠片铁芯的模具规格较少，且模具容易 加工，降低了该分段铁芯的加工难度。且该分段铁芯的电磁性能比单纯使用SMC材料高，铁芯利用率比单纯使用叠片铁芯高。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例所提供的一种分段铁芯的爆炸结构示意图；
图2为本发明实施例所提供的一种分段铁芯的拼接后的立体结构示意图；
图3为本发明实施例所提供的第一SMC铁芯的立体结构示意图；
图4为本发明实施例所提供的另一种分段铁芯的爆炸结构示意图；
图5为本发明实施例所提供的又一种分段铁芯的爆炸结构示意图；
图6为本发明实施例所提供的又一种分段铁芯的拼接后的立体结构示意图；
图7为本发明实施例所提供的又一种分段铁芯的爆炸结构示意图；
图8为本发明实施例所提供的又一种分段铁芯的拼接后的立体结构示意图；
图9为本发明实施例所提供的一种盘式电机的立体结构示意图；
图10为本发明实施例所提供的又一种盘式电机的爆炸结构示意图；
图11为本发明实施例所提供的又一种盘式电机的立体结构示意图；
图12为本发明实施例所提供的又一种SMC铁芯结构的立体结构示意图；
图13为本发明实施例所提供的又一种分段铁芯的爆炸结构示意图；
图14为本发明实施例所提供的又一种分段铁芯的爆炸结构示意图。
其中，图1至图10中：100为SMC铁芯、200为叠片铁芯、300为线圈、400为第一定子夹板、500为第二定子夹板、600为定子内支撑、700为机壳、101为第一SMC铁芯、102为第二SMC铁芯、1011为SMC线棒、1012为SMC内嵌槽、1013为SMC极靴、1014为第一定位凸起、1015为第一定位孔、1016为第二定位凸起、1017为第二定位孔；
图11至图14中：100’为SMC铁芯、200’为叠片铁芯、300’为线圈、101’为SMC线棒、102’为SMC内嵌槽、103’为第一SMC极靴、104’为第二SMC极靴、1021’为台阶部。
具体实施方式
盘式电机：盘式电机也叫轴向磁场电机，其电机内部的磁场的方向是沿着轴向。由于轴向磁场电机一般都呈现扁平状，因此也叫盘式电机。
SMC：软磁复合材料，是通过一种由特殊绝缘材料包覆的铁粉经过压制而成的导磁铁芯，可以根据实际需求制造成灵活的形状。
为此，本发明的核心在于提供一种分段铁芯以及盘式电机，以降低分段铁芯的制造难度的基础上提高电磁性能。
此外，下面所示的实施例不对权利要求所记载的发明内容起任何限定作用。另外，下面实施例所表示的构成的全部内容不限于作为权利要求所记载的发明的解决方案所必需的。
请参阅图1至图10，本发明实施例所公开的分段铁芯，包括叠片铁芯200和SMC铁芯100，SMC铁芯100经拼接包覆在叠片铁芯200的外周，SMC铁芯经拼接安装在预制线圈内部，或者线圈直接缠绕SMC铁芯外周。
本发明中的分段铁芯采用SMC铁芯100包覆在叠片铁芯200的整个外部，不易加工的外形由易成形的SMC铁芯100加工而成，叠片铁芯200整体结构相对单一，因此，加工叠片铁芯200的模具规格较少，且模具容易加工，降低了该分段铁芯的加工难度。且该分段铁芯的电磁性能比单纯使用SMC材料高，铁芯利用率比单纯使用叠片铁芯200高。
另外，由于该SMC铁芯100为拼接结构，因此，SMC铁芯100经拼接安装在预制线圈内部，例如扁铜线预成型线圈。从而不需要进行缠绕，提高生产效率。或者，线圈直接缠绕在SMC铁芯100外周。
需要说明的是，本发明实施例中，SMC铁芯100能够包覆叠片铁芯200的整个外部，叠片铁芯200全部位于SMC铁芯100的内部。SMC铁芯100包覆叠片铁芯200的外周，叠片铁芯200的两端并未包裹住。SMC铁芯100包覆叠片铁芯200的整个外周，或者部分外周，其中，包裹部分外周时，有一部分叠片铁芯200暴露在外，可集中一部分暴露在外，或者两端具有部分暴露在外。
SMC铁芯100包括第一SMC铁芯101和第二SMC铁芯102，第一SMC铁芯101和第二SMC铁芯102通过拼接包覆在叠片铁芯200的整个外部，第一SMC铁芯101和第二SMC铁芯102拼接安装在预制线圈300(例如扁铜线预成型线圈)内部或者所述线圈300直接缠绕在SMC铁芯100外周。其中，为了保证整个电磁性能，本发明实施例中SMC内嵌槽1012的形状与叠片铁芯200的形态相贴合，例如，SMC内嵌槽1012为矩形结构；或者SMC内嵌槽1012设置有多个台阶部。
其中第一SMC铁芯101和第二SMC铁芯102的结构相同，或者不同。以第一SMC铁芯101为例，第一SMC铁芯101包括SMC线棒1011和与叠片铁芯200相适配的SMC内嵌槽1012，SMC内嵌槽1012为非贯穿结构或者贯穿结构。第一SMC铁芯101和第二SMC铁芯102对接后，第一SMC铁芯101中的内嵌槽与第二SMC铁芯102中的内嵌槽对接，并拼接成整个叠片铁芯200的外形结构。
为了优化上述方案，SMC线棒1011背离SMC内嵌槽1012的一端设置有SMC极靴1013。为了使得第一SMC铁芯101和第二SMC铁芯102能够在正确位置对接，SMC线棒1011靠近SMC内嵌槽1012的一端设置有与第二SMC铁芯102相适配的第一定位凸起1014和/或第一定位孔1015。对接时，第一SMC铁芯101的第一定位凸起1014与第二SMC铁芯102的第一定位孔1015相配合，第一SMC铁芯101第一定位孔1015与第二SMC铁芯102的第一定位凸起1014相配合。
也就是说，第一SMC铁芯101可以只设置第一定位凸起1014和第一定位孔1015中的一个，也可以两个都设置，而第二SMC铁芯102设置对应的结构与之相配合即可。
进一步的，SMC线棒1011靠近SMC内嵌槽1012的一端设置有与第二SMC铁芯102相适配的第二定位凸起1016和/或第二定位孔1017。对接时，第一SMC铁芯101的第一定位凸起1014与第二SMC铁芯102的第二定位孔1017相配合，第一SMC铁芯101第二定位孔1017与第二SMC铁芯102的第二定位凸起1016相配合。
也就是说，第一SMC铁芯101可以只设置第二定位凸起1016和第二定位孔1017中的一个，也可以两个都设置，而第二SMC铁芯102设置对应的结构与之相配合即可。
为了进一步降低该分段铁芯的加工难度，本发明实施例中，第一定位凸起1014和第一定位孔1015对称设置，且，第一定位凸起1014的尺寸和第一定位孔1015的尺寸相适配；第二定位凸起1016和第二定位孔1017对称设置，且，第二定位凸起1016的尺寸和第二定位孔1017的尺寸相适配。如此设置，第一SMC铁芯101和第二SMC铁芯102结构相同，且可以使用同一个模具就能够加工第一SMC铁芯101和第二SMC铁芯102。
叠片铁芯200为由多个叠片叠压而成，叠片为硅钢片或非晶合金片。本发明实施例中的用于叠压叠片铁芯200的叠片的结构较为单纯，例如，为方便加工的矩形结构，同一尺寸的叠片，在叠压过程中能够形成矩形结构的叠片铁芯200。
另外，为了进一步提高整个分段铁芯的电磁性能，该叠片铁芯200可以为多段尺寸不同的叠片叠压而成，优选的，为了最大限度的与分段铁芯的外形(通常为梯形结构)相适配，不同尺寸的叠片的数量越多越好，但是考虑到加工难度，本发明实施例中，叠片铁芯200由三段尺寸逐渐变小的叠片叠压而成，其中每段中叠片的尺寸相同，相邻的段的尺寸不同。
本发明还公开了一种盘式电机，包括第一定子夹板400、分段铁芯、定子内支撑600、第二定子夹板500和机壳700，各个分段铁芯由第一定子夹板400、第二定子夹板500和定子内支撑600固定在机壳700内，分段铁芯为如上述中任一项的分段铁芯。由于上述分段铁芯具有以上优点，包括上述分段铁芯的盘式电机也具有相应的效果，此处不再赘述。
请参阅图11至图14，本发明实施例所公开的分段铁芯，包括缠绕线圈300’的SMC铁芯100’和叠片铁芯200’，SMC铁芯100’包覆在叠片铁芯200’的外周面。
本发明中的分段铁芯采用SMC铁芯100’包覆在叠片铁芯200’的外周面，不易加工的外形由易成形的SMC铁芯100’加工而成，叠片铁芯200’整体结构相对单一，因此，加工叠片铁芯200’的模具规格较少，且模具容易加工，降低了该分段铁芯的加工难度。且该分段铁芯的电磁性能比单纯使用SMC材料高，铁芯利用率比单纯使用叠片铁芯200’高。
需要说明的是，本发明实施例中，SMC铁芯100’包覆叠片铁芯200’的外周面，叠片铁芯200’的两端并未包裹住。SMC铁芯100’包覆叠片铁芯200’的整个外周面，或者部分外周面，其中，包裹部分外周面时，有一部分叠片铁芯200’暴露在外，可集中一部分暴露在外，或者两端具有部分暴露在外。
SMC铁芯100’包括SMC线棒101’和设置在SMC线棒101’的SMC内嵌槽102’，其中，SMC线棒101’的外周面用于设置线圈300’，SMC内嵌槽102’安装叠片铁芯200’。其中，为了保证整个电磁性能，本发明实施例中SMC内嵌槽102’的形状与叠片铁芯200’的外周面的形态相贴合，例如，SMC内嵌槽102’为矩形结构；或者SMC内嵌槽102’设置有多个台阶部1021’。
为了优化上述方案，SMC线棒101’的一个端面设置有第一SMC极靴103’。进一步的，SMC线棒101’的与设置第一SMC极靴103’相对的端面设置有第二SMC极靴104’。
叠片铁芯200’为由多个叠片叠压而成，叠片为硅钢片、非晶合金片或坡莫合金片或者铁钴合金片。本发明实施例中的用于叠压叠片铁芯200’的叠片的结构较为单纯，例如，为方便加工的矩形结构，同一尺寸的叠片，在叠压过程中能够形成矩形结构的叠片铁芯200’。
另外，为了进一步提高整个分段铁芯的电磁性能，该叠片铁芯200’可以为多段尺寸不同的叠片叠压而成，优选的，为了最大限度的与分段铁芯的外形(通常为梯形结构)相适配，不同尺寸的叠片的数量越多越好，但是考虑到加工难度，本发明实施例中，叠片铁芯200’由多段尺寸逐渐变小的叠片叠压而成，图示中具体介绍了有三段叠片的结构，其中每段中叠片的尺寸相同，相邻的段的尺寸不同。
本发明还公开了一种盘式电机，包括如上述中任一项所述的分段铁芯。由于上述分段铁芯具有以上优点，包括上述分段铁芯的盘式电机也具有相应的效果，此处不再赘述。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (21)

  1. 一种分段铁芯，其特征在于，包括叠片铁芯和SMC铁芯，所述SMC铁芯经拼接包覆在所述叠片铁芯的外周，所述SMC铁芯经拼接安装在预制线圈内部，或者线圈直接缠绕所述SMC铁芯外周。
  2. 如权利要求1所述的分段铁芯，其特征在于，所述SMC铁芯包括第一SMC铁芯和第二SMC铁芯，所述第一SMC铁芯和第二SMC铁芯通过拼接包覆在所述叠片铁芯的外周，所述第一SMC铁芯和第二SMC铁芯拼接后安装在预制线圈内部或者所述线圈直接缠绕在所述SMC铁芯外周。
  3. 如权利要求2所述的分段铁芯，其特征在于，所述第一SMC铁芯包括SMC线棒和与所述叠片铁芯相适配的SMC内嵌槽，所述SMC内嵌槽为非贯穿结构或贯穿结构。
  4. 如权利要求3所述的分段铁芯，其特征在于，所述SMC线棒背离所述SMC内嵌槽的一端设置有SMC极靴。
  5. 如权利要求4所述的分段铁芯，其特征在于，所述SMC线棒靠近所述SMC内嵌槽的一端设置有与所述第二SMC铁芯相适配的第一定位凸起和/或第一定位孔。
  6. 如权利要求5所述的分段铁芯，其特征在于，所述SMC线棒设置所述SMC内嵌槽的一端设置有与所述第二SMC铁芯相适配的第二定位凸起和/或第二定位孔。
  7. 如权利要求6所述的分段铁芯，其特征在于，当同时设置有所述第一定位凸起和所述第一定位孔时，所述第一定位凸起和所述第一定位孔对称设置，且，所述第一定位凸起的尺寸和所述第一定位孔的尺寸相适配；
    当同时设置有所述第二定位凸起和所述第二定位孔时，所述第二定位凸起和所述第二定位孔对称设置，且，所述第二定位凸起的尺寸和所述第二定位孔的尺寸相适配。
  8. 如权利要求7所述的分段铁芯，其特征在于，所述第二SMC铁芯与所述第一SMC铁芯的结构相同。
  9. 如权利要求1至8中任一项所述的分段铁芯，其特征在于，所述叠片铁芯为由多个叠片叠压而成，所述叠片为硅钢片或非晶合金片。
  10. 如权利要求9所述的分段铁芯，其特征在于，所述叠片铁芯由同一尺寸的叠片叠压而成，或者所述叠片铁芯由多段尺寸逐渐变小的叠片叠压而成。
  11. 一种盘式电机，包括第一定子夹板、分段铁芯、定子内支撑、第二定子夹板和机壳，各个分段铁芯由所述第一定子夹板、所述第二定子夹板和定子内支撑固定在所述机壳内，其特征在于，所述分段铁芯为如权利要求1至10中任一项所述的分段铁芯。
  12. 一种分段铁芯，其特征在于，包括叠片铁芯和缠绕线圈的SMC铁芯，所述SMC铁芯包覆在所述叠片铁芯的外周面。
  13. 如权利要求12所述的分段铁芯，其特征在于，所述SMC铁芯包括SMC线棒和设置在所述SMC线棒的SMC内嵌槽，其中，所述SMC线棒的外周面用于设置线圈，所述SMC内嵌槽安装所述叠片铁芯。
  14. 如权利要求13所述的分段铁芯，其特征在于，所述SMC线棒的一个端面设置有第一SMC极靴。
  15. 如权利要求14所述的分段铁芯，其特征在于，所述SMC线棒的与设置所述第一SMC极靴相对的端面设置有第二SMC极靴。
  16. 如权利要求15所述的分段铁芯，其特征在于，所述SMC内嵌槽为矩形结构。
  17. 如权利要求15所述的分段铁芯，其特征在于，所述SMC内嵌槽设置有多个台阶部。
  18. 如权利要求12所述的分段铁芯，其特征在于，所述叠片铁芯为由多个叠片叠压而成，所述叠片为硅钢片、非晶合金片或坡莫合金片或者铁钴合金片。
  19. 如权利要求18所述的分段铁芯，其特征在于，所述叠片铁芯由同一尺寸的叠片叠压而成。
  20. 如权利要求18所述的分段铁芯，其特征在于，所述叠片铁芯由多段尺寸逐渐变小的叠片叠压而成。
  21. 一种盘式电机，其特征在于，包括如权利要求12至20中任一项所述的分段铁芯。
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