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CN1235244A - Rotor assemblies for hermetic rotary compressors with supports for impeding rotor magnet movement - Google Patents

Rotor assemblies for hermetic rotary compressors with supports for impeding rotor magnet movement Download PDF

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Publication number
CN1235244A
CN1235244A CN98123831A CN98123831A CN1235244A CN 1235244 A CN1235244 A CN 1235244A CN 98123831 A CN98123831 A CN 98123831A CN 98123831 A CN98123831 A CN 98123831A CN 1235244 A CN1235244 A CN 1235244A
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China
Prior art keywords
rotor
magnet
rotor assembly
assembly according
longitudinal length
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Pending
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CN98123831A
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Chinese (zh)
Inventor
李相哲
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of CN1235244A publication Critical patent/CN1235244A/en
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

气密旋转压缩机的转子总成,它包括:转子体,由彼此叠加的多个铁芯组成;多个磁体,分别位于沿转子体形成的孔中;上、下端板,分别连接转子体的上、下端;和弹簧,位于磁体和端板间的孔中,阻止磁体纵向运动。

A rotor assembly of an airtight rotary compressor, which includes: a rotor body composed of a plurality of iron cores superimposed on each other; a plurality of magnets respectively located in holes formed along the rotor body; upper and lower end plates respectively connected to the rotor body upper and lower ends; and a spring located in the hole between the magnet and the end plate to resist longitudinal movement of the magnet.

Description

带阻止转子磁体运动支撑件的 气密旋转压缩机的转子总成Rotor assembly for hermetic rotary compressors with supports for impeding rotor magnet movement

本发明涉及气密旋转压缩机，特别涉及一种具有在转子中预定位置上安装有磁体的气密旋转压缩机的转子总成。The present invention relates to a hermetic rotary compressor, and more particularly to a rotor assembly of a hermetic rotary compressor having magnets installed at predetermined positions in the rotor.

一般来说，一个压缩机压缩通过蒸发器的制冷剂，并向冷凝器排放压缩的制冷剂。如图1所示，压缩机具有一个密封壳体20，一个电动机构30，和一个压缩机构40。电动机构30设在密封壳体20内。压缩机构40通过电动机构30产生的驱动力旋转，压缩制冷剂。Generally, a compressor compresses the refrigerant passing through the evaporator and discharges the compressed refrigerant to the condenser. As shown in FIG. 1 , the compressor has a sealed casing 20 , a motor mechanism 30 , and a compression mechanism 40 . The electric mechanism 30 is provided in the sealed casing 20 . The compression mechanism 40 is rotated by the driving force generated by the electric mechanism 30 to compress the refrigerant.

壳体20的上部连接制冷剂排放管22，它的下部连接制冷剂吸管24。制冷剂吸管24连接储存器50。The upper part of the housing 20 is connected to a refrigerant discharge pipe 22 , and its lower part is connected to a refrigerant suction pipe 24 . The refrigerant suction pipe 24 is connected to a reservoir 50 .

电动机构30包括一个定子32，一个转子60。定子32固定到壳体20的内周表面。转子60可旋转地安在定子32内，并与转子具有一个预定间隙。转轴36固定在转子60的中心部。转轴36的一端向压缩机构凸出。同时，如图2所示，转子60包括一个转子体64，磁体70，和上、下端板68和69。多个铁芯相互叠放，形成转子体64。磁体70插入到多个沿转子体64纵向形成的沿周向隔开的孔66中。上、下板68和69分别用铆钉固定到转子体64的上、下部分。而且，转子体64和上、下板68和69分别具有安装孔64a,68a,69a，转轴通过这些孔插入。The motor mechanism 30 includes a stator 32 and a rotor 60 . The stator 32 is fixed to the inner peripheral surface of the housing 20 . The rotor 60 is rotatably mounted within the stator 32 with a predetermined gap therebetween. The rotating shaft 36 is fixed to the center portion of the rotor 60 . One end of the rotating shaft 36 protrudes toward the compression mechanism. Meanwhile, as shown in FIG. 2 , the rotor 60 includes a rotor body 64 , magnets 70 , and upper and lower end plates 68 and 69 . A plurality of iron cores are stacked on top of each other to form the rotor body 64 . The magnets 70 are inserted into a plurality of circumferentially spaced holes 66 formed longitudinally of the rotor body 64 . Upper and lower plates 68 and 69 are fixed to the upper and lower portions of the rotor body 64 with rivets, respectively. Also, the rotor body 64 and the upper and lower plates 68 and 69 have mounting holes 64a, 68a, 69a, respectively, through which the rotating shaft is inserted.

转子60组装如下。首先铁芯叠起来形成转子体64，磁体70插入到转子体64的孔66中。然后，用铆钉72将上、下端板68和69分别固定到转子体64的上、下部分。磁体70做得比转子体64的孔的纵向深度短，因此形成被上、下端板68和69盖上的相应的上、下空间S。铆钉72通过在磁体间限定的区域插入，以致防止磁体被铆钉72损坏。The rotor 60 is assembled as follows. First, the iron cores are stacked to form the rotor body 64 , and the magnets 70 are inserted into the holes 66 of the rotor body 64 . Then, the upper and lower end plates 68 and 69 are secured to the upper and lower portions of the rotor body 64 with rivets 72, respectively. The magnets 70 are made shorter than the longitudinal depth of the bore of the rotor body 64, thereby forming respective upper and lower spaces S covered by the upper and lower end plates 68 and 69. The rivets 72 are inserted through the areas defined between the magnets so that the magnets are prevented from being damaged by the rivets 72 .

在图中的标号42表示压缩机构40的一个辊。辊42连接到转轴36的偏心轴36a。另外，标号44表示一个作动缸，46和48分别表示上、下法兰。上、下法兰46和48分别安装在缸44的上、下部分，密封缸44。Reference numeral 42 in the figure denotes a roller of the compression mechanism 40 . The roller 42 is connected to the eccentric shaft 36 a of the rotary shaft 36 . In addition, reference numeral 44 denotes a cylinder, and 46 and 48 denote upper and lower flanges, respectively. Upper and lower flanges 46 and 48 are mounted on the upper and lower portions of the cylinder 44 to seal the cylinder 44, respectively.

因此，在上述结构的气密旋转压缩机中，在它启动工作时，由于定子32产生的磁力，转子60高速旋转。因此，装到转轴36的偏心轴36a上的辊子42在缸44内周表面限定空间内沿轨道运行。通过吸管24冷却剂被缸44吸入，在缸内被转子42压缩。然后被压缩的冷却剂通过排放管22排放。Therefore, in the hermetic rotary compressor constructed as described above, the rotor 60 rotates at a high speed due to the magnetic force generated by the stator 32 when it starts to operate. Accordingly, the roller 42 mounted on the eccentric shaft 36a of the rotary shaft 36 orbits within the space defined by the inner peripheral surface of the cylinder 44. As shown in FIG. The coolant is sucked into the cylinder 44 through the suction pipe 24 and compressed by the rotor 42 inside the cylinder. The compressed coolant is then discharged through the discharge pipe 22 .

然而上述的传统气密旋转压缩机具有的缺点是，当压缩机工作时，插入到转子体64的孔66中的磁体70在它们的各自空间内上、下移动，并冲击上、下端板68和69。因此，产生噪音，损坏磁体。更甚的是，因为磁体运动，磁体彼此相对的位置不同，以致产生的磁力不均匀，马达的性能变坏。However, the above-mentioned conventional hermetic rotary compressor has a disadvantage that, when the compressor is operating, the magnets 70 inserted into the holes 66 of the rotor body 64 move up and down in their respective spaces and strike the upper and lower end plates 68 and 69. Therefore, noise is generated, and the magnet is damaged. What's more, because the magnets move, the positions of the magnets relative to each other are different, so that the generated magnetic force is not uniform, and the performance of the motor deteriorates.

本发明是为了克服上述问题。因此本发明的目的是提供一种在转子旋转时阻止(最好是防止)磁体运动的气密旋转压缩机的转子总成。从而减小噪音，防止磁体的损坏，使磁体保持在预定纵向位置。The present invention is to overcome the above-mentioned problems. It is therefore an object of the present invention to provide a rotor assembly for a hermetic rotary compressor which resists (preferably prevents) the movement of the magnets as the rotor rotates. Thereby reducing noise, preventing damage to the magnet, and maintaining the magnet at a predetermined longitudinal position.

上述目的是通过本发明的气密旋转压缩机的转子总成实现的，它包括一个转子体，具有彼此叠加的多个铁芯；磁体，插入到多个沿转子体形成的孔中；上、下端板，通过连接件分别安装到转子体的上、下部分；和一个支撑件，支撑插入到转子体的孔中的磁体，阻止(最好防止)磁体运动。The above object is achieved by the rotor assembly of the airtight rotary compressor of the present invention, which includes a rotor body with a plurality of iron cores superimposed on each other; magnets inserted into a plurality of holes formed along the rotor body; upper, a lower end plate, respectively mounted to the upper and lower parts of the rotor body by connecting members; and a support member, which supports the magnets inserted into the holes of the rotor body, and prevents (preferably prevents) the movement of the magnets.

每个支撑件包括一个弹性件，它弹性支撑磁体。支撑件位于转子体的孔的上和/或下部，并且与各自的端板连接。Each support includes an elastic member elastically supporting the magnet. The supports are located above and/or below the bore of the rotor body and are connected to the respective end plates.

一个螺旋压缩弹簧可用作弹性件。A helical compression spring can be used as the elastic member.

因此，在根据本发明的转子总成中，因为插入转子体的磁体被弹性件弹性支撑，磁体的运动被组止(最好是被防止)，即使转子以高速旋转也是如此。因此，防止了磁体的损坏以及噪音。而且，如果磁体被支撑使得它们不运动，则能产生均匀的磁力，加强了压缩机性能。Therefore, in the rotor assembly according to the present invention, since the magnet inserted into the rotor body is elastically supported by the elastic member, the movement of the magnet is blocked (preferably prevented) even if the rotor rotates at a high speed. Therefore, damage of the magnet and noise are prevented. Also, if the magnets are supported so that they do not move, a uniform magnetic force can be generated, enhancing compressor performance.

以下参照附图的详细说明，将使上述目的和优点更明了。The above objects and advantages will be more apparent from the following detailed description with reference to the accompanying drawings.

图1是传统气密旋转压缩机的剖视图；Fig. 1 is a sectional view of a conventional hermetic rotary compressor;

图2是传统转子总成的分解透视图；Fig. 2 is an exploded perspective view of a conventional rotor assembly;

图3是本发明优选实施例的转子总成的分解透视图；Fig. 3 is an exploded perspective view of the rotor assembly of the preferred embodiment of the present invention;

图4是图3的组装后转子总成的剖视图。FIG. 4 is a cross-sectional view of the assembled rotor assembly of FIG. 3 .

图3示出本发明实施例气密旋转压缩机转子总成。Fig. 3 shows the rotor assembly of the hermetic rotary compressor according to the embodiment of the present invention.

如图所示，本发明实施例气密旋转压缩机转子总成包括一个转子体110，磁体120，上、下端板130和132，和弹性件140。转子体110具有多个彼此叠加的铁芯112。磁体120插入到多个沿转子体110形成的纵向孔106中，磁体比孔短。上、下端板130和132通过连接件102分别固定到转子体110的上、下部分。弹性件包括位于转子体110的孔106的上、下部分中的螺旋弹簧140。每个弹簧在一个磁体和端板之一间工作。图示为两个弹簧分别置于磁体与各端板形成的空间S中。在图中示出两个弹簧均连接到相应的一个上板130或下板132，从而由上、下板支撑，并阻止(最好是防止)磁体运动。一个安装孔104形成在转子体110的中心部分，一个转轴压配合到安装孔104中。孔106围绕安装孔104基本径向延伸。As shown in the figure, the rotor assembly of the hermetic rotary compressor according to the embodiment of the present invention includes a rotor body 110 , a magnet 120 , upper and lower end plates 130 and 132 , and an elastic member 140 . The rotor body 110 has a plurality of iron cores 112 stacked on top of each other. The magnets 120 are inserted into a plurality of longitudinal holes 106 formed along the rotor body 110, the magnets being shorter than the holes. Upper and lower end plates 130 and 132 are respectively fixed to upper and lower portions of the rotor body 110 by connecting members 102 . The elastic members include coil springs 140 located in upper and lower portions of the bore 106 of the rotor body 110 . Each spring works between a magnet and one of the end plates. The figure shows that two springs are respectively placed in the space S formed by the magnet and each end plate. Both springs are shown connected to a respective one of the upper plate 130 or lower plate 132 so as to be supported by the upper and lower plates and prevent (preferably prevent) the movement of the magnets. A mounting hole 104 is formed in the central portion of the rotor body 110 , and a rotating shaft is press-fitted into the mounting hole 104 . Aperture 106 extends substantially radially around mounting aperture 104 .

如所说明的，弹性件140阻止磁体120的纵向运动。如果使用这样弹性的弹簧，使得它们防止磁体120的纵向运动，那么磁体120会稳定地保持在预定的纵向位置。虽然在优选实施例中用螺旋压缩弹簧作为弹性件140，但弹性件140不限于螺旋压缩弹簧，可以用其他弹性件，如橡胶块等。As illustrated, the resilient member 140 resists longitudinal movement of the magnet 120 . If such elastic springs are used that they prevent the longitudinal movement of the magnet 120, the magnet 120 will be stably maintained at a predetermined longitudinal position. Although a helical compression spring is used as the elastic member 140 in the preferred embodiment, the elastic member 140 is not limited to a helical compression spring, and other elastic members, such as rubber blocks, can be used.

另外，虽然图中的螺旋压缩弹簧是位于上、下两个空间S中，支撑磁体120的上、下部分，但也可将弹簧置于上、下空间S之一中。In addition, although the helical compression spring in the figure is located in the upper and lower spaces S to support the upper and lower parts of the magnet 120, the spring can also be placed in one of the upper and lower spaces S.

因此，在将固定到螺旋压缩弹簧140的相应端的上、下端板130和132由连接装置如铆钉连接到转子体上时，螺旋压缩弹簧140被压缩，并支撑位于转子体的孔106中的磁体120。虽然在图中未示出，但上、下端板130和132可具有适当的固定结构，如纵向凸起，以固定螺旋压缩弹簧。Therefore, when the upper and lower end plates 130 and 132 fixed to the respective ends of the helical compression spring 140 are connected to the rotor body by connecting means such as rivets, the helical compression spring 140 is compressed and supports the magnets located in the holes 106 of the rotor body 120. Although not shown in the drawings, the upper and lower end plates 130 and 132 may have suitable fixing structures, such as longitudinal protrusions, to fix the helical compression springs.

本发明优选实施例的转子总成的组装过程如下。The assembly process of the rotor assembly of the preferred embodiment of the present invention is as follows.

首先，多个铁芯112叠起来形成转子体110。然后，磁体120插入到沿转子体110形成的孔106中。因此，在孔106的上、下部分构成预定长度的相应空间S。First, a plurality of iron cores 112 are stacked to form the rotor body 110 . Magnets 120 are then inserted into holes 106 formed along rotor body 110 . Accordingly, respective spaces S of a predetermined length are formed at upper and lower portions of the hole 106 .

在磁体插入孔106后，上、下端板130和132分别由结合装置102固定到转子体110的上、下部分。因为弹性件140安装在上、下端板130和132上相应于孔106的位置，在固定，在上、下端板130和132安装到转子体110时，弹性件140将插入到孔106的上、下部分上限定的空间S中。弹性件140弹性压缩，以这样的弹性力支撑磁体120，使得磁体120纵向运动最好被防止。图4示出，完全组装的转子总成的一例。After the magnets are inserted into the holes 106, the upper and lower end plates 130 and 132 are fixed to the upper and lower parts of the rotor body 110 by the coupling means 102, respectively. Because the elastic member 140 is installed on the upper and lower end plates 130 and 132 corresponding to the position of the hole 106, when the upper and lower end plates 130 and 132 are installed on the rotor body 110, the elastic member 140 will be inserted into the upper and lower positions of the hole 106. In the space S defined on the lower part. The elastic member 140 is elastically compressed to support the magnet 120 with such elastic force that the longitudinal movement of the magnet 120 is preferably prevented. Figure 4 shows an example of a fully assembled rotor assembly.

这样组装的转子总成安装在定子32内，以高速旋转。因此，与转子总成连接的偏心轴36a在缸44的内圆周表面限定的空间内沿轨道运行，压缩和排放制冷剂。The thus assembled rotor assembly is mounted within the stator 32 to rotate at high speed. Therefore, the eccentric shaft 36a connected to the rotor assembly orbits in the space defined by the inner peripheral surface of the cylinder 44 to compress and discharge the refrigerant.

在转子旋转时，磁体120由弹性件140支撑，防止磁体冲击端板130和132。因此，磁体不产生噪音，或被损坏。而且，如果磁体由弹性件支撑，即使磁体高速旋转时也不纵向运动，这样保证使磁体产生一个均匀的磁力。其结果，压缩机性能加强。As the rotor rotates, the magnets 120 are supported by elastic members 140 that prevent the magnets from impacting the end plates 130 and 132 . Therefore, the magnet does not generate noise, or be damaged. Moreover, if the magnet is supported by the elastic member, it does not move longitudinally even when the magnet rotates at a high speed, which ensures that the magnet generates a uniform magnetic force. As a result, compressor performance is enhanced.

虽然已参照本发明的优选实施例特别说明和图示了本发明，本领域的技术人员应理解，在不偏离权利要求限定的本发明的构思和范围的情况下，可进行种种形式或细节上的改变。Although the invention has been particularly described and illustrated with reference to preferred embodiments thereof, it will be understood by those skilled in the art that changes in form and details may be made without departing from the spirit and scope of the invention as defined in the claims. change.

Claims (13)

1. the rotor assembly of a hermetic rotary compressor, it comprises:
Rotor body has a plurality of iron cores of stack each other, limits a vertical shaft axis;
A plurality of magnets lay respectively at along in vertical hole that body forms;
Upper head plate and lower end sheet are connected respectively to the upper/lower terminal of rotor body, and the fore-and-aft distance between upper and lower end plate is characterized in that greater than the magnet longitudinal length, also comprise,
Supporting element is operated between each magnet and at least one end plate, stops the longitudinal movement of magnet in the hole.
2. rotor assembly according to claim 1 is characterized in that, each supporting element comprises an elastic component.
3. rotor assembly according to claim 2 is characterized in that the longitudinal length of magnet is less than the longitudinal length in hole.
4. rotor assembly according to claim 3 is characterized in that elastic component is positioned between each magnet and upper head plate.
5. rotor assembly according to claim 3 is characterized in that elastic component is positioned between each magnet and lower end sheet.
6. rotor assembly according to claim 3 is characterized in that, elastic component is positioned between each magnet and upper head plate, lower end sheet.
7. rotor assembly according to claim 3 is characterized in that elastic component comprises spiral compression spring.
8. rotor assembly according to claim 1 is characterized in that the longitudinal length of magnet is less than the longitudinal length of rotor body.
9. rotor assembly according to claim 1 is characterized in that each supporting element is installed on one of end plate.
10. hermetic rotary compressor comprises:
Housing;
Compressing mechanism is positioned at housing, comprises the movable compression piece of a compressed refrigerant;
Electric motor is positioned at housing, comprises a stator and the rotor by the magneto drive of stator generation, and working rotor connects movable compression piece, makes described movable compression piece motion, and rotor comprises:
Rotor body has a plurality of iron cores of stack each other, limits a vertical shaft axis;
A plurality of magnets lay respectively at along in vertical hole that body forms;
Upper head plate and lower end sheet are connected respectively to the upper/lower terminal of rotor body, and the fore-and-aft distance between upper and lower end plate is greater than the magnet longitudinal length,
It is characterized in that described rotor also comprises,
Supporting element is operated between each magnet and at least one end plate, stops the longitudinal movement of magnet in the hole.
11. compressor according to claim 10 is characterized in that, each supporting element comprises an elastic component.
12. compressor according to claim 11 becomes, and it is characterized in that the longitudinal length of magnet is less than the longitudinal length in hole.
13. compressor according to claim 11 is characterized in that elastic component comprises spiral compression spring.
CN98123831A 1998-05-08 1998-11-03 Rotor assemblies for hermetic rotary compressors with supports for impeding rotor magnet movement Pending CN1235244A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR16479/98 1998-05-08
KR1019980016479A KR100285844B1 (en) 1998-05-08 1998-05-08 Rotor of compressor

Publications (1)

Publication Number Publication Date
CN1235244A true CN1235244A (en) 1999-11-17

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CN98123831A Pending CN1235244A (en) 1998-05-08 1998-11-03 Rotor assemblies for hermetic rotary compressors with supports for impeding rotor magnet movement

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JP (1) JPH11332146A (en)
KR (1) KR100285844B1 (en)
CN (1) CN1235244A (en)

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CN106059149A (en) * 2016-08-09 2016-10-26 珠海凌达压缩机有限公司 Motor rotor subassembly and motor

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TW595072B (en) * 2003-01-06 2004-06-21 Unique Product & Design Co Ltd Assembly type rotor structure of brushless motor
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