WO2017202001A1 - 转子、具有转子的永磁电机和压缩机 - Google Patents

转子、具有转子的永磁电机和压缩机 Download PDF

Info

Publication number
WO2017202001A1
WO2017202001A1 PCT/CN2016/108737 CN2016108737W WO2017202001A1 WO 2017202001 A1 WO2017202001 A1 WO 2017202001A1 CN 2016108737 W CN2016108737 W CN 2016108737W WO 2017202001 A1 WO2017202001 A1 WO 2017202001A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
rotor
mounting groove
body portion
side edges
Prior art date
Application number
PCT/CN2016/108737
Other languages
English (en)
French (fr)
Inventor
于明湖
乔正忠
毛临书
Original Assignee
广东美芝制冷设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201620509183.4U external-priority patent/CN205791848U/zh
Priority claimed from CN201610371423.3A external-priority patent/CN106059141B/zh
Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Publication of WO2017202001A1 publication Critical patent/WO2017202001A1/zh

Links

Images

Classifications

    • 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Definitions

  • the present invention relates to the field of refrigeration equipment technology, and more particularly to a rotor, a permanent magnet motor having a rotor, and a compressor.
  • the rotor of a permanent magnet motor is composed of a rotor core, a permanent magnet slot, a permanent magnet and an end plate assembly. Due to the high requirements on manufacturability and reliability of the rotor, the structural size design of the rotor directly affects manufacturability and reliability.
  • the rotor of the permanent magnet motor for a compressor is partially designed with a spring portion on the rotor end plate.
  • the permanent magnet is generally a square structure, the end plate and the permanent magnet have no clear structural size design.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the first aspect of the present invention provides a rotor which has the advantages of high cost performance, high reliability, and excellent manufacturability.
  • a second aspect of the invention provides a permanent magnet motor having the above rotor.
  • a third aspect of the invention provides a compressor having the above permanent magnet motor.
  • a rotor includes: an iron core having a mounting groove penetrating in an axial direction of the iron core; a permanent magnet provided in the mounting groove and including a body And a plurality of convex portions at both ends of the main body portion in the axial direction, a width of an outer end surface of at least one of the convex portions away from the main body portion is smaller than a width of the main body portion; two end plates, Two end plates are respectively disposed at axial ends of the iron core, and at least one of the end plates has a spring portion elastically biasing the permanent magnet toward the other end plate, the bullet
  • the moving portion includes a transition portion and an abutting portion extending sequentially from the end plate into the mounting groove, wherein the abutting portion elastically abuts the outer end surface of the convex portion, and the body is in the body In the width direction of the portion, the abutting portion does not extend beyond both side edges of the outer end surface of the convex portion.
  • the rotor of the present invention it is possible to ensure that the abutting portion of the spring portion effectively axially limits the permanent magnet, thereby improving the manufacturability and reliability of the rotor.
  • two apexes of the outer end faces of at least one of the convex portions are equal to a gap between both side edges of the mounting groove.
  • the body portion is a rectangular plate and a gap is formed between both side edges of the body portion and both side edges of the mounting groove in the width direction.
  • the gap between the side edges of the body portion and the side edges of the mounting groove are equal.
  • both ends of the permanent magnet are respectively interference-fitted with the two end plates.
  • the permanent magnets are symmetrical about a width centerline of the mounting groove.
  • the permanent magnets are symmetrical about a height centerline of the mounting groove.
  • At least one of the end plates is a piece of non-magnetically permeable material.
  • At least one of the end plates is provided with a weight.
  • a permanent magnet motor according to a second aspect of the invention includes the rotor according to the first aspect of the invention.
  • the permanent magnet motor of the present invention by providing the rotor of the first aspect described above, it has high cost performance and excellent manufacturability, and is highly reliable.
  • a compressor according to a third aspect of the invention comprises the permanent magnet motor according to the second aspect of the invention.
  • the overall performance of the compressor is improved by providing the permanent magnet motor of the second aspect described above.
  • Figure 1 is a schematic illustration of a rotor in accordance with an embodiment of the first aspect of the present invention
  • Figure 2 is a schematic view of the rotor shown in Figure 1 along a working surface of a portion of the permanent magnet;
  • Figure 3 is a schematic view of the end plate shown in Figure 1;
  • FIG. 4 is a schematic view of a permanent magnet motor according to an embodiment of the second aspect of the present invention.
  • Figure 5 is a schematic illustration of a compressor in accordance with an embodiment of the third aspect of the present invention.
  • Permanent magnet 12 body portion 121, convex portion 122,
  • the end plate 13 The end plate 13, the spring portion 131, the transition portion 1311, the abutting portion 1312,
  • crankshaft 20 main bearing 30, cylinder 40, piston 50, and sub-bearing 60.
  • a rotor 1 according to an embodiment of the first aspect of the present invention will be described below with reference to Figs.
  • a rotor 1 according to an embodiment of the first aspect of the present invention includes an iron core 11, a permanent magnet 12, and two end plates 13.
  • the iron core 11 has a mounting groove 111 penetrating in the axial direction of the iron core 11 (for example, the up and down direction shown in FIG. 2), and the permanent magnet 12 is provided in the mounting groove 111.
  • the permanent magnet 12 includes a body portion 121 and two convex portions 122 axially located at both ends of the body portion 121 (for example, upper and lower ends of the body portion 121 shown in FIG.
  • the width of the outer end surface of the 121 is smaller than the width of the body portion 121; for example, the width of the upper end surface of the convex portion 122 located at the upper end of the main body portion 121 may be smaller than the width of the main body portion 121, or may be only the convex portion at the lower end of the main body portion 121.
  • the width of the lower end surface of the portion 122 is smaller than the width of the body portion 121, and the width of the upper end surface of the convex portion 122 at the upper end of the main body portion 121 and the width of the lower end surface of the convex portion 122 at the lower end of the main body portion 121 are smaller than that of the main body portion.
  • the width of 121 is smaller than the width of the body portion 121, and the width of the upper end surface of the convex portion 122 at the upper end of the main body portion 121 and the width of the lower end surface of the convex portion 122 at the lower end of the main body portion 121 are smaller than that of the main body portion.
  • the width of 121 is smaller than the width of the body portion 121, and the width of the upper end surface of the convex portion 122 at the upper end of the main body portion 121 and the width of the lower end surface of the convex portion 122 at the lower end of the main body portion 121 are smaller than that of the main body portion.
  • the two end plates 13 are respectively disposed at both ends of the iron core 11 in the axial direction (for example, the up and down direction shown in FIG. 2), and at least one of the end plates 13 has elastically biased pressing of the permanent magnet 12 toward the other end plate 13.
  • the portion 131 can thereby axially limit the permanent magnet 12 by the spring portion 131.
  • only the end plate 13 at the upper end of the iron core 11 may have a spring portion 131, and the spring portion 131 elastically presses the permanent magnet 12 downward; or only the end plate 13 at the lower end of the iron core 11 has a spring portion.
  • the elastic portion 131 elastically presses the permanent magnet 12 upwards;
  • the spring portion 131 of the end plate 13 elastically presses the permanent magnet 12 upward, whereby the position of the spring portion 131 is reliably set according to the actual situation, and the flexibility of the setting of the spring portion 131 is improved.
  • the spring portion 131 includes a transition portion 1311 and an abutting portion 1312 extending sequentially from the end plate 13 into the mounting groove 111, wherein the abutting portion 1312 elastically abuts against the outer end surface of the convex portion 122, and is wider at the width of the body portion 121.
  • the direction for example, the left-right direction shown in FIG.
  • the abutting portion 1312 does not exceed both side edges of the outer end surface of the convex portion 122, for example, the left end of the abutting portion 1312 does not exceed the left end of the outer end surface of the convex portion 122, and The right end of the abutting portion 1312 does not extend beyond the right end of the outer end surface of the convex portion 122. Thereby, it can be ensured that the abutting portion 1312 of the spring portion 131 effectively axially limits the permanent magnet 12, thereby improving the manufacturability and reliability of the rotor 1.
  • the rotor 1 of the embodiment of the present invention it is possible to ensure that the abutting portion 1312 of the spring portion 131 effectively axially limits the permanent magnet 12, thereby improving the manufacturability and reliability of the rotor 1.
  • the two apexes of the outer end faces of the at least one convex portion 122 and the both side edges of the mounting groove 111 The gap between them is equal.
  • only the two vertices of the upper end surface of the convex portion 122 located at the upper end of the body portion 121 may be equal to the gap between the both side edges of the mounting groove 111; or may be only the lower end surface of the convex portion 122 at the lower end of the body portion 121.
  • the two vertices are equal to the gap between the two side edges of the mounting groove 111; it is also possible that both vertices of the upper end surface of the convex portion 122 at the upper end and the two vertices of the lower end surface of the convex portion 122 at the lower end are mounted
  • the gap between the sides of the groove 111 is equal.
  • the center line of the outer end surface of the convex portion 122 in the width direction coincides with the center line of the mounting groove 111 in the width direction, whereby the reliability of the elastic portion 131 to axially limit the outer end surface of the convex portion 122 can be improved. Further improving the reliability of the assembly of the rotor 1 and making the structure of the rotor 1 more reasonable.
  • the body portion 121 may be a rectangular plate and in both the width direction (for example, the left-right direction shown in FIG. 2), both side edges of the body portion 121 and the mounting groove 111 There is a gap between the side edges. Thereby, it is possible to facilitate the assembly of the permanent magnet 12 into the mounting groove 111, and it is also possible to define the displacement of the permanent magnet 12 in the width direction by the side walls of the left and right sides of the mounting groove 111.
  • the gap between the side edges of the main body portion 121 and the side edges of the mounting groove 111 is equal.
  • the two ends of the permanent magnet 12 are respectively interference-fitted with the two end plates 13, thereby ensuring that the end plate 13 effectively axially limits the permanent magnet 12.
  • the upper and lower ends of the iron core 11 are provided with end plates 13, the distance between the lower surface of the upper end plate 13 and the upper surface of the lower end plate 13 is H1, and the permanent magnet 12 is axially The maximum height of the direction is H2, and the upper end plate 13 is provided with a spring portion 131.
  • the distance between the lower surface of the upper end plate 13 and the lower end surface of the abutting portion 1312 is H3, and H1, H2 and H3 satisfy: H1-H2 ⁇ H3, thereby ensuring that the end plate 13 abutment section 1312 effectively axially limits the permanent magnet 12.
  • the permanent magnets 12 may be symmetrical about the center line of the width of the mounting groove 111, whereby the structure of the permanent magnets 12 may be simplified to facilitate the forming of the permanent magnets 12.
  • the permanent magnets 12 may be symmetrical about the height centerline of the mounting groove 111, whereby the structure of the permanent magnets 12 may be simplified to facilitate the forming of the permanent magnets 12.
  • At least one of the end plates 13 is a non-magnetically permeable material member, whereby the end plate 13 can be utilized The magnetic flux of the permanent magnet 12 is prevented from being increased, and the electromagnetic performance of the rotor 1 is improved.
  • At least one of the end plates 13 is provided with a weight 14, that is, the weight 14 may be provided on only one of the end plates 13, or may be balanced on both end plates 13.
  • a rotor 1 according to an embodiment of the present invention will now be described with reference to Figs.
  • the rotor 1 includes a core 11, a permanent magnet 12, two end plates 13, a weight 14 and a rivet 15, wherein the end plate 13 is a non-magnetic material member, and the weight 14 is disposed on the end plate 13.
  • the rivet 15 assembles the core 11, the permanent magnet 12, the end plate 13, and the weight 14 into one body.
  • the iron core 11 has a mounting groove 111 penetrating in the up-and-down direction, and the permanent magnet 12 is disposed in the mounting groove 111.
  • the permanent magnet 12 includes a body portion 121 formed as a rectangular plate and connected to the body portion 121.
  • the two convex portions 122 at the upper and lower ends, the left and right side walls of the mounting groove 111 are gap-fitted with the left and right side edges of the body portion 121, and the permanent magnet 12 is at the upper limit in the width direction.
  • the permanent magnets 12 are symmetrical about the width center line of the mounting groove 111, and the permanent magnets 12 are symmetrical about the height center line of the permanent magnets 12.
  • the end plate 13 is disposed at upper and lower ends of the iron core 11, and the end plate 13 at the upper end has a spring portion 131 of the elastic permanent magnet 12 facing downward, and the elastic portion 131 includes a transition portion 1311 and an abutting portion 1312, and the abutting portion The 1312 extends downward into the mounting groove 111 to elastically abut against the upper end surface of the convex portion 122, thereby sufficiently axially limiting the permanent magnet 12.
  • the width of the main body portion 121 of the permanent magnet 12 is set to W1
  • the width of the upper end surface of the convex portion 122 is W2
  • the width of the abutting portion 1312 is W3
  • W1, W2, and W3 satisfy: W2 ⁇ W1, W3 ⁇ W2.
  • the vertical distance between the left end point of the upper end surface of the convex portion 122 and the left side wall of the mounting groove 111 is D1
  • the vertical distance between the right end point of the upper end surface of the convex portion 122 and the right side wall of the mounting groove 111 is D2
  • the leftmost end of the abutting section 1312 and the vertical distance from the left side wall of the mounting groove 111 are d1
  • the rightmost end of the abutting section 1312 and the vertical distance from the right side wall of the mounting groove 111 are d2
  • D1, D2, d1 And d2 satisfy: D1 ⁇ d1, D2 ⁇ d2.
  • the vertical distance between the two end plates 13 is set to H1
  • the maximum height of the permanent magnet 12 in the axial direction is H2
  • the lower surface of the end plate 13 and the lower end surface of the abutting portion 1312 are The distance is H3, and H1, H2, and H3 satisfy: H1-H2 ⁇ H3, thereby ensuring that the end plate 13 abutting section 1312 effectively axially limits the permanent magnet 12.
  • Permanent magnet motor 10 according to an embodiment of the second aspect of the present invention, comprising the embodiment according to the first aspect of the present invention Child 1.
  • the permanent magnet motor 10 includes a rotor 1 and a stator 2, wherein the stator 2 is disposed radially outward of the rotor 1, and the stator 2 includes a stator core 21 and a winding 22.
  • the specific structure and working principle of the permanent magnet motor 10 are both prior art and will not be described in detail herein.
  • the permanent magnet motor 10 of the embodiment of the present invention is provided with the above-described rotor 1 of the first aspect, so that the permanent magnet motor 10 has high cost performance and excellent manufacturability, and has high reliability.
  • a compressor 100 according to an embodiment of the third aspect of the present invention includes a permanent magnet motor 10 according to an embodiment of the above second aspect of the present invention.
  • the compressor 100 improves the overall performance of the compressor 100 by providing the permanent magnet motor 10 of the second aspect embodiment described above.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two components or the interaction of two components .
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or only It is only indicated that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

一种转子、具有转子的永磁电机和压缩机，所述转子(1)包括：铁芯(11)、永磁体(12)和两个端板(13)，铁芯(11)上具有安装槽(111)；永磁体(12)设在安装槽(111)内；两个端板(13)分别设在铁芯(11)的轴向两端，至少一个端板(13)上具有朝向另一端板(13)方向弹性抵压永磁体(12)的弹动部(131)。

Description

转子、具有转子的永磁电机和压缩机 技术领域
本发明涉及制冷设备技术领域，尤其是涉及一种转子、具有转子的永磁电机和压缩机。
背景技术
永磁电机的转子，由转子铁芯、永磁体槽、永磁体和端板装配组合而成。由于转子对制造性及可靠性要求高，导致转子的结构尺寸设计直接影响制造性及可靠性。
相关技术中的压缩机用永磁电机的转子，部分在转子端板上设计弹动部，然而，由于永磁体一般为方形结构，端板与永磁体并无明确的结构尺寸设计。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明第一方面在于提出一种转子，所述转子具有性价比高、可靠性高以及制造性优良的优点。
本发明第二方面在于提出一种具有上述转子的永磁电机。
本发明第三方面在于提出一种具有上述永磁电机的压缩机。
根据本发明第一方面的转子，包括：铁芯，所述铁芯上具有沿所述铁芯的轴向贯通的安装槽；永磁体，所述永磁体设在所述安装槽内且包括本体部和在所述轴向上位于所述本体部两端的两个凸部，至少一个所述凸部的远离所述本体部的外端面的宽度小于所述本体部的宽度；两个端板，两个所述端板分别设在所述铁芯的轴向两端，至少一个所述端板上具有朝向另一所述端板方向弹性抵压所述永磁体的弹动部，所述弹动部包括由所述端板向所述安装槽内依次延伸的过渡段和抵接段，其中，所述抵接段与所述凸部的所述外端面弹性抵接，且在所述本体部的宽度方向上，所述抵接段不超出所述凸部的所述外端面的两侧边缘。
根据本发明的转子，可以保证弹动部的抵接段有效地对永磁体进行轴向限位，从而提高转子的制造性和可靠性。
根据本发明的一个示例，在所述宽度方向上，至少一个所述凸部的所述外端面的两个顶点与所述安装槽的两侧边缘之间的间隙相等。
根据本发明的一个示例，所述本体部为矩形板且在所述宽度方向上，所述本体部的两侧边缘与所述安装槽的两侧边缘之间均具有间隙。
根据本发明的一个示例，所述本体部的两侧边缘与所述安装槽的两侧边缘之间的间隙相等。
根据本发明的一个示例，所述永磁体的两端分别与所述两个端板过盈配合。
根据本发明的一个示例，所述永磁体关于所述安装槽的宽度中心线对称。
根据本发明的一个示例，所述永磁体关于所述安装槽的高度中心线对称。
根据本发明的一个示例，至少一个所述端板为非导磁材料件。
根据本发明的一个示例，至少一个所述端板上设有平衡块。
根据本发明第二方面的永磁电机，包括根据本发明第一方面的转子。
根据本发明的永磁电机，通过设置上述第一方面的转子，从而具有较高的性价比和优良的制造性，可靠性高。
根据本发明第三方面的压缩机，包括根据本发明第二方面的永磁电机。
根据本发明的压缩机，通过设置上述第二方面的永磁电机，从而提高了压缩机的整体性能。
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。
附图说明
图1是根据本发明第一方面实施例的转子的示意图；
图2是图1中所示的转子沿部分永磁体的工作面展开的示意图；
图3是图1中所示的端板的示意图；
图4是根据本发明第二方面实施例的永磁电机的示意图；
图5是根据本发明第三方面实施例的压缩机的示意图。
附图标记：
压缩机100，
永磁电机10，
转子1，
铁芯11，安装槽111，
永磁体12，本体部121，凸部122，
端板13，弹动部131，过渡段1311，抵接段1312，
平衡块14，铆钉15，
定子2，定子铁芯21，绕组22，
曲轴20，主轴承30，气缸40，活塞50，副轴承60。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，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，旨在用于解释本发明，而不能理解为对本发明的限制。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的可应用于性和/或其他材料的使用。
下面参考图1-图5描述根据本发明第一方面实施例的转子1。
如图1所示，根据本发明第一方面实施例的转子1，包括：铁芯11、永磁体12和两个端板13。
具体地，铁芯11上具有沿铁芯11的轴向(例如图2中所示的上下方向)贯通的安装槽111，永磁体12设在安装槽111内。永磁体12包括本体部121和在轴向上位于本体部121两端(例如图2中所示的本体部121的上下两端)的两个凸部122，至少一个凸部122的远离本体部121的外端面的宽度小于本体部121的宽度；例如，可以仅是位于本体部121上端的凸部122的上端面的宽度小于本体部121的宽度，也可以仅是位于本体部121下端的凸部122的下端面的宽度小于本体部121的宽度，还可以是位于本体部121上端的凸部122的上端面的宽度和位于本体部121下端的凸部122的下端面的宽度均小于本体部121的宽度。
两个端板13分别设在铁芯11的轴向(例如图2中所示的上下方向)两端，至少一个端板13上具有朝向另一端板13方向弹性抵压永磁体12的弹动部131，由此，可以通过弹动部131对永磁体12进行轴向限位。例如，可以仅是位于铁芯11上端的端板13具有弹动部131，弹动部131向下弹性抵压永磁体12；也可以仅是位于铁芯11下端的端板13具有弹动部131，弹动部131向上弹性抵压永磁体12；还可以是两个端板13均具有弹动部131，此时，上端端板13的弹动部131向下弹性抵押永磁体12且下端端板13的弹动部131向上弹性抵压永磁体12，由此，可靠根据实际情况设置弹动部131的位置，提高弹动部131设置的灵活性。
弹动部131包括由端板13向安装槽111内依次延伸的过渡段1311和抵接段1312，其中，抵接段1312与凸部122的外端面弹性抵接，且在本体部121的宽度方向(例如图2中所示的左右方向)上，抵接段1312不超出凸部122的外端面的两侧边缘，例如，抵接段1312的左端不超出凸部122外端面的左端，且抵接段1312的右端不超出凸部122外端面的右端。 由此，可以保证弹动部131的抵接段1312有效地对永磁体12进行轴向限位，从而提高转子1的制造性和可靠性。
根据本发明实施例的转子1，可以保证弹动部131的抵接段1312有效地对永磁体12进行轴向限位，从而提高转子1的制造性和可靠性。
在本发明的一个实施例中，参照图2，在宽度方向(例如图2中所示的左右方向)上，至少一个凸部122的外端面的两个顶点与安装槽111的两侧边缘之间的间隙相等。例如，可以仅是位于本体部121上端的凸部122的上端面的两个顶点与安装槽111两侧边缘之间的间隙相等；也可以仅是位于本体部121下端的凸部122的下端面的两个顶点与安装槽111两侧边缘之间的间隙相等；还可以是位于上端的凸部122的上端面的两个顶点和位于下端的凸部122的下端面的两个顶点均与安装槽111两侧边缘之间的间隙相等。这样，凸部122的外端面沿宽度方向的中心线正好与安装槽111沿宽度方向的中心线重合，由此，可以提高弹动部131对凸部122的外端面轴向限位的可靠性，进一步提高转子1装配的可靠性，使转子1的结构更加合理。
在本发明的一些实施例中，参照图2，本体部121可以为矩形板且在宽度方向(例如图2中所示的左右方向)上，本体部121的两侧边缘与安装槽111的两侧边缘之间均具有间隙。由此，可以便于永磁体12往安装槽111内装配，同时也可以利用安装槽111的左右两侧的边壁限定永磁体12沿宽度方向的位移。
进一步地，参照图2，本体部121的两侧边缘与安装槽111的两侧边缘之间的间隙相等，此时，本体部121沿宽度方向的中心线与安装槽111的沿宽度方向的中心线重合，由此，可以提高弹动部131对永磁体12轴向限位的可靠性，进一步提高转子1装配的可靠性，使转子1的结构更加合理。
在本发明的一些实施例中，参照图2，永磁体12的两端分别与两个端板13过盈配合，由此，可以保证端板13有效地对永磁体12进行轴向限位。例如在图2所示的示例中，铁芯11的上下两端均设有端板13，上端板13的下表面与下端板13的上表面之间的距离为H1，永磁体12沿轴向方向的最大高度为H2，上端板13上设有弹动部131，上端板13的下表面与抵接段1312的下端面之间的距离为H3，且H1、H2和H3满足：H1-H2≤H3，由此，可保证端板13抵接段1312有效地对永磁体12进行轴向限位。
在本发明的一些实施例中，参照图2，永磁体12可以关于安装槽111的宽度中心线对称，由此，可以简化永磁体12的结构，便于永磁体12加工成型。
在本发明的一些实施例中，参照图2，永磁体12可以关于安装槽111的高度中心线对称，由此，可以简化永磁体12的结构，便于永磁体12加工成型。
在本发明的一些实施例中，至少一个端板13为非导磁材料件，由此，可以利用端板13 防止永磁体12漏磁，提高转子1电磁性能。
在本发明的一些实施例中，至少一个端板13上设有平衡块14，也就是说，可以仅在一个端板13上设置平衡块14，也可以在两个端板13上均设置平衡块14，由此，可以提高转子1的机械特性以及平衡性，减少转子1运转过程中的振动和噪音，延长转子1的使用寿命。
下面将参考图1-图5描述根据本发明一个具体实施例的转子1。
参照图1，转子1包括铁芯11、永磁体12、两个端板13、平衡块14和铆钉15，其中，端板13为非导磁材料件，平衡块14设在端板13上，铆钉15将铁芯11、永磁体12、端板13和平衡块14组装为一体。
具体地，如图2所示，铁芯11上具有上下方向贯通的安装槽111，永磁体12设在安装槽111内，永磁体12包括形成为矩形板的本体部121和连接在本体部121上下两端的两个凸部122，安装槽111的左右两侧壁与本体部121的左右两侧边缘间隙配合，且对永磁体12在宽度方向上限位。优选地，永磁体12关于安装槽111的宽度中心线对称，且永磁体12关于永磁体12的高度中心线对称。
端板13设在铁芯11的上下两端，位于上端的端板13具有朝下弹性抵押永磁体12的弹动部131，弹动部131包括过渡段1311和抵接段1312，抵接段1312向下伸入安装槽111内与凸部122的上端面弹性抵接，从而对永磁体12进行轴向充分限位。
如图2所示，设定永磁体12本体部121的宽度为W1，凸部122上端面的宽度为W2，抵接段1312的宽度为W3；且W1、W2和W3满足：W2＜W1，W3≤W2。
如图2所示，设定凸部122的上端面的左端点与安装槽111左侧壁的垂直距离为D1，凸部122的上端面的右端点与安装槽111右侧壁的垂直距离为D2；抵接段1312的最左端与与安装槽111左侧壁的垂直距离为d1，抵接段1312的最右端与与安装槽111右侧壁的垂直距离为d2；且D1、D2、d1和d2满足：D1≤d1，D2≤d2。由此，可以保证抵接段1312有效地对永磁体12进行轴向限位，提高转子1的制造性和可靠性。
优选地，当D1＝D2时，由于D1＝D2≥(W1-W2)/2，从而可以满足：W1-W2≤2d1，W1-W2≤2d2。
如图2所示，设定两个端板13之间的垂直距离为H1，永磁体12沿轴向方向的最大高度为H2，端板13的下表面与抵接段1312的下端面之间的距离为H3，且H1、H2和H3满足：H1-H2≤H3，由此，可保证端板13抵接段1312有效地对永磁体12进行轴向限位。
根据本发明第二方面实施例的永磁电机10，包括根据本发明上述第一方面实施例的转 子1。
具体地，如图4所示，永磁电机10包括转子1和定子2，其中，定子2设在转子1的径向外侧，定子2包括定子铁芯21和绕组22。这里，永磁电机10的具体结构和工作原理均为现有技术，这里不再详述。
根据本发明实施例的永磁电机10，通过设置上述第一方面实施例的转子1，从而使永磁电机10具有较高的性价比和优良的制造性，可靠性高。
根据本发明第三方面实施例的压缩机100，包括根据本发明上述第二方面实施例的永磁电机10。
根据本发明实施例的压缩机100的其他构成例如曲轴20、主轴承30、气缸40、活塞50以及副轴承60等结构和具体工作原理均为本领域普通技术人员所熟知的，这里不再详细描述。
根据本发明实施例的压缩机100，通过设置上述第二方面实施例的永磁电机10，从而提高了压缩机100的整体性能。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括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。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接，还可以是通信；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。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅 仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管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 (11)

  1. 一种转子，其特征在于，包括：
    铁芯，所述铁芯上具有沿所述铁芯的轴向贯通的安装槽；
    永磁体，所述永磁体设在所述安装槽内且包括本体部和在所述轴向上位于所述本体部两端的两个凸部，至少一个所述凸部的远离所述本体部的外端面的宽度小于所述本体部的宽度；
    两个端板，两个所述端板分别设在所述铁芯的轴向两端，至少一个所述端板上具有朝向另一所述端板方向弹性抵压所述永磁体的弹动部，所述弹动部包括由所述端板向所述安装槽内依次延伸的过渡段和抵接段，其中，所述抵接段与所述凸部的所述外端面弹性抵接，且在所述本体部的宽度方向上，所述抵接段不超出所述凸部的所述外端面的两侧边缘。
  2. 根据权利要求1所述的转子，其特征在于，在所述宽度方向上，至少一个所述凸部的所述外端面的两个顶点与所述安装槽的两侧边缘之间的间隙相等。
  3. 根据权利要求1或2所述的转子，其特征在于，所述本体部为矩形板且在所述宽度方向上，所述本体部的两侧边缘与所述安装槽的两侧边缘之间均具有间隙。
  4. 根据权利要求3所述的转子，其特征在于，所述本体部的两侧边缘与所述安装槽的两侧边缘之间的间隙相等。
  5. 根据权利要求1-4中任一项所述的转子，其特征在于，在所述轴向上，所述永磁体的两端分别与所述两个端板过盈配合。
  6. 根据权利要求1-5中任一项所述的转子，其特征在于，所述永磁体关于所述安装槽的宽度中心线对称。
  7. 根据权利要求1-6中任一项所述的转子，其特征在于，所述永磁体关于所述安装槽的高度中心线对称。
  8. 跟据权利要求1-7中任一项所述的转子，其特征在于，至少一个所述端板为非导磁材料件。
  9. 跟据权利要求1-8中任一项所述的转子，其特征在于，至少一个所述端板上设有平衡块。
  10. 一种永磁电机，其特征在于，包括根据权利要求1-9任一项所述的转子。
  11. 一种压缩机，其特征在于，包括根据权利要求10所述的永磁电机。
PCT/CN2016/108737 2016-05-27 2016-12-06 转子、具有转子的永磁电机和压缩机 WO2017202001A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201620509183.4U CN205791848U (zh) 2016-05-27 2016-05-27 转子、具有转子的永磁电机和压缩机
CN201610371423.3 2016-05-27
CN201610371423.3A CN106059141B (zh) 2016-05-27 2016-05-27 转子、具有转子的永磁电机和压缩机
CN201620509183.4 2016-05-27

Publications (1)

Publication Number Publication Date
WO2017202001A1 true WO2017202001A1 (zh) 2017-11-30

Family

ID=60412106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/108737 WO2017202001A1 (zh) 2016-05-27 2016-12-06 转子、具有转子的永磁电机和压缩机

Country Status (1)

Country Link
WO (1) WO2017202001A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113595280A (zh) * 2021-08-18 2021-11-02 华能通辽风力发电有限公司 一种转子

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001251795A (ja) * 2000-03-07 2001-09-14 Toshiba Kyaria Kk 永久磁石回転子
CN204243998U (zh) * 2014-11-14 2015-04-01 广东美芝制冷设备有限公司 电机和具有其的压缩机
CN105186741A (zh) * 2014-05-27 2015-12-23 比亚迪股份有限公司 电机转子和具有其的电机
CN105515225A (zh) * 2016-02-01 2016-04-20 广东美芝制冷设备有限公司 永磁体、永磁电机及压缩机
CN106059141A (zh) * 2016-05-27 2016-10-26 广东美芝制冷设备有限公司 转子、具有转子的永磁电机和压缩机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001251795A (ja) * 2000-03-07 2001-09-14 Toshiba Kyaria Kk 永久磁石回転子
CN105186741A (zh) * 2014-05-27 2015-12-23 比亚迪股份有限公司 电机转子和具有其的电机
CN204243998U (zh) * 2014-11-14 2015-04-01 广东美芝制冷设备有限公司 电机和具有其的压缩机
CN105515225A (zh) * 2016-02-01 2016-04-20 广东美芝制冷设备有限公司 永磁体、永磁电机及压缩机
CN106059141A (zh) * 2016-05-27 2016-10-26 广东美芝制冷设备有限公司 转子、具有转子的永磁电机和压缩机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113595280A (zh) * 2021-08-18 2021-11-02 华能通辽风力发电有限公司 一种转子
CN113595280B (zh) * 2021-08-18 2023-11-17 华能通辽风力发电有限公司 一种转子

Similar Documents

Publication Publication Date Title
US8633630B2 (en) Permanent magnet rotor of motor
JP5370433B2 (ja) 永久磁石埋設型電動モータ
JP6137121B2 (ja) ロータ構造及びロータ製造方法
JP6083523B2 (ja) ロータおよびモータ
CN106059141A (zh) 转子、具有转子的永磁电机和压缩机
JPWO2010058609A1 (ja) 電動機の回転子及び電動機及び送風機及び圧縮機
US10476325B2 (en) Inner-rotor motor and rotor thereof
CN105743250B (zh) 永久磁铁同步电动机
JP2016092980A (ja) ロータの製造方法
JP6256390B2 (ja) ロータの製造方法
JP5790426B2 (ja) ロータ
CN111769664A (zh) 一种减振转子组件和电机
CN107231048B (zh) 电机、内嵌式转子、转子铁芯及其转子冲片
WO2017202001A1 (zh) 转子、具有转子的永磁电机和压缩机
KR102049335B1 (ko) 수평 사각 진동모터
JP2013165620A (ja) ブラシレスモータおよび送風機
WO2015133134A1 (ja) ロータ
JP2015042123A (ja) ロータ
JP2015042122A (ja) ロータ
JP2013051841A (ja) 回転電気機械
CN107591911B (zh) 转子冲片、转子铁芯、电机和压缩机
KR102449770B1 (ko) 모터
CN218216855U (zh) 转子、定子、电机、压缩机及制冷设备
JP2011004529A (ja) Ｉｐｍモータ用ロータとｉｐｍモータ
CN221614704U (zh) 电机定子、电机及车辆

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16902985

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16902985

Country of ref document: EP

Kind code of ref document: A1