CN206533207U - Rotor, motor, compressor and refrigerator - Google Patents

Rotor, motor, compressor and refrigerator Download PDF

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Publication number
CN206533207U
CN206533207U CN201720258975.3U CN201720258975U CN206533207U CN 206533207 U CN206533207 U CN 206533207U CN 201720258975 U CN201720258975 U CN 201720258975U CN 206533207 U CN206533207 U CN 206533207U
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China
Prior art keywords
magnet
rotor
rotor core
utility
mounting groove
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CN201720258975.3U
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Chinese (zh)
Inventor
徐奔
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.)
Midea Group Co Ltd
Anhui Meizhi Compressor Co Ltd
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Midea Group Co Ltd
Anhui Meizhi Compressor Co Ltd
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Priority to CN201720258975.3U priority Critical patent/CN206533207U/en
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Abstract

The utility model discloses a kind of rotor, motor, compressor and refrigerator.Rotor includes:Rotor core, rotor core extends upward through rotor core provided with multiple mounting grooves set along its circumferential direction uniform intervals, each mounting groove in the axle of rotor core;Multiple magnet, multiple magnet and multiple mounting grooves are corresponded, and each magnet is contained in corresponding mounting groove, and direction of each magnet along the central axis towards rotor core is recessed so that magnet is configured into circle-arc profile;Wherein, the maximum outline radius of rotor core is that the radius of circle where R1, the arc surface of the side of the central axis of the remote rotor core of each magnet is R2, and the thickness of magnet is H, and R1, R2 and H are met:0.84≤R2/R1≤0.88,0.22≤H/R1≤0.245.According to rotor of the present utility model, the processing to magnet is simplified, the stock utilization of magnet is improved, the anti-demagnetization capability of magnet is strong.

Description

Rotor, motor, compressor and refrigerator
Technical field
The utility model is related to household electrical appliance technical field, more particularly, to a kind of rotor, motor, compressor and refrigerator.
Background technology
Rotor in correlation technique, stock utilization is low, processed complex, and the anti-demagnetization capability of rotor magnet is poor, pressure The reliability of contracting machine is not good.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried Go out a kind of rotor, the rotor can ensure the stock utilization of magnet and the simplicity of processing.
The utility model also proposes a kind of motor with above-mentioned rotor.
The utility model also proposes a kind of compressor with above-mentioned motor.
The utility model also proposes a kind of refrigerator with above-mentioned compressor.
According to the rotor of the utility model embodiment, including:Rotor core, the cross section of the rotor core is formed as ring Shape shape, the rotor core is provided with multiple mounting grooves set along its circumferential direction uniform intervals, each mounting groove The rotor core is extended upward through in the axle of the rotor core;Multiple magnet, multiple magnet and multiple mounting grooves Correspond, and each magnet is contained in the corresponding mounting groove, each magnet is along towards the rotor iron The direction of the central axis of core is recessed so that the magnet is configured into circle-arc profile;Wherein, the maximum of the rotor core is outer Profile radius is R1, the half of circle where the arc surface of the side of the central axis of the remote rotor core of each magnet Footpath is R2, and the thickness of the magnet is H, and described R1, R2 and H are met:0.84≤R2/R1≤0.88,0.22≤H/R1≤ 0.245。
According to the rotor of the utility model embodiment, on the one hand by making each circular arc magnet edge towards rotor core The direction of central axis is recessed, such magnet it is simple in construction, simplify the processing to magnet, improve processing magnet when material Expect utilization rate;On the other hand by making in the maximum outline radius R1 of rotor core and the remote rotor core of each magnet The radius R2 of circle is met where the arc surface of the side of heart axis:0.84≤R2/R1≤0.88, is conducive to optimizing the structure of rotor And size, so as to be conducive to improving the performance of motor.In addition, meeting the thickness H and R1 of magnet:0.22≤H/R1≤0.245, Be conducive to improving the anti-demagnetization capability of magnet, when rotor is with motor, is conducive to improving the reliability of motor work, works as electricity When machine is used on the compressor, be conducive to improving the reliability of compressor operating.
According to some embodiments of the present utility model, the Breadth Maximum of the magnet is L, and L is met:1.28≤L/R1≤ 1.34。
According to some embodiments of the present utility model, when the magnet coordinates in the mounting groove, the magnet Side side and the mounting groove on width are D just to the ultimate range between the side wall of the side side, and D is full Foot:0.25mm≤D≤0.35mm.
According to some embodiments of the present utility model, the magnet is four.
According to some embodiments of the present utility model, the magnet is ferrite lattice.
According to some embodiments of the present utility model, the rotor core is stacked by multiple rotor punchings and formed.
According to some embodiments of the present utility model, the rotor punching is silicon steel sheet.
According to the motor of the utility model embodiment, including the rotor in above-described embodiment.
According to the motor of the utility model embodiment, the above-mentioned rotor by setting, be conducive to improve motor work can By property, cost is reduced.
According to the compressor of the utility model embodiment, including the motor in above-described embodiment.
According to the compressor of the utility model embodiment, the above-mentioned motor by setting is conducive to improving compressor operating Reliability, reduce cost.
According to the refrigerator of the utility model embodiment, including the compressor in above-described embodiment.
According to the refrigerator of the utility model embodiment, the above-mentioned compressor by setting is conducive to improving refrigerator work Reliability, reduces cost.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein:
Fig. 1 is the cooperation schematic diagram of rotor according to the utility model some embodiments and stator;
Fig. 2 is the schematic diagram of the rotor according to the utility model some embodiments;
Fig. 3 is the schematic cross-sectional view of the rotor according to the utility model some embodiments;
Fig. 4 is the close-up schematic view of the rotor according to the utility model some embodiments;
Fig. 5 is the stereogram of the magnet according to the utility model some embodiments;
Fig. 6 is the sectional view of the magnet according to the utility model some embodiments.
Reference:
Rotor 100;
Rotor core 1;Mounting groove 11;Magnet 2;Lead angle 21;
Stator 200.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axle To ", " radial direction ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship, be only for It is easy to description the utility model and simplifies describe, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Retouched of the present utility model In stating, unless otherwise indicated, " multiple " are meant that two or more.
Describe to be filled with stator 200 according to the rotor 100 of the utility model embodiment, rotor 100 below with reference to Fig. 1-Fig. 6 With together in order to the assembling to motor.
As Figure 1-Figure 4, according to the rotor 100 of the utility model embodiment, rotor core 1 and multiple magnetic can be included Iron 2.Alternatively, magnet 2 can be ferrite lattice.
Specifically, as shown in Fig. 2-Fig. 3, the cross section of rotor core 1 is formed as annular shape, for example, rotor core 1 Cross section is formed as annular shape.It will be appreciated by persons skilled in the art that when rotor 100 is assemblied on motor, motor During applied in compressor, interior annular is available for the bent axle of compressor to pass through.
Rotor core 1 exists provided with multiple mounting grooves 11 set along its circumferential direction uniform intervals, each mounting groove 11 The axle of rotor core 1 extends upward through rotor core 1, that is to say, that multiple mounting grooves 11 are equal in the circumferential direction of rotor core 1 It is even to be arranged at intervals, and each mounting groove 11 extends upward through rotor core 1 in the axle of rotor core 1.
Multiple magnet 2 are corresponded with multiple mounting grooves 11, and each magnet 2 is contained in corresponding mounting groove 11, That is, a magnet 2 is installed in each mounting groove 11.For example, rotor 100 includes setting on four magnet 2, rotor core 1 Have in four mounting grooves 11 that uniform intervals are set in its circumferential direction, each mounting groove 11 and be correspondingly provided with a magnet 2.
Preferably, the shape and the shape of magnet 2 of each mounting groove 11 are substantially the same, consequently facilitating magnet 2 and mounting groove 11 Matching installation.
As shown in figs 1 to 6, direction of each magnet 2 along the central axis towards rotor core 1 is recessed with by the structure of magnet 2 Cause circle-arc profile, that is to say, that when each magnet 2 is arranged in corresponding mounting groove 11, each circle-arc profile Magnet 2 protrudes towards the direction of the central axis of rotor core 1.Thus, magnet 2 is simple in construction, so as to simplify to magnet 2 Processing, improve processing magnet 2 when stock utilization.
The maximum outline radius of rotor core 1 is R1, for example, when the cross section of rotor core 1 is formed as annular shape During shape, the outline radius of rotor core 1 is R1.And for example, when the cross section of rotor core 1 is formed as non-circular shape, The radius of circle where the maximum outline of rotor core 1 is R1.
As shown in fig. 6, half of circle where the arc surface of the side of the central axis of the remote rotor core 1 of each magnet 2 Footpath is that R2, R1 and R2 are met:0.84≤R2/R1≤0.88.Thus, be conducive to optimizing the structure snd size of rotor 100, so as to have Beneficial to the performance for improving motor.
Alternatively, R2/R1 is 0.85,0.856,0.86,0.865,0.87,0.876 etc., so as to further optimize rotor 100 structure snd size.
As shown in fig. 6, the thickness of magnet 2 meets for H, R1 and H:0.22≤H/R1≤0.245.Thus, by by magnet 2 Thickness and rotor core 1 maximum outline radius R1 between proportionate relationship be limited to:0.22≤H/R1≤0.245, this Sample is conducive to improving the anti-demagnetization capability of magnet 2, when rotor 100 is with motor, is conducive to improving the reliable of motor work Property, when motor is used on the compressor, be conducive to improving the reliability of compressor operating.
Alternatively, H/R1 is 0.222,0.225,0.228,0.23,0.232,0.235,0.238 or 0.24, so as to enter one The anti-demagnetization capability of step optimization magnet 2.
According to the rotor 100 of the utility model embodiment, on the one hand by making each circular arc magnet 2 along towards rotor iron The direction of the central axis of core 1 is recessed, such magnet 2 it is simple in construction, simplify the processing to magnet 2, improve processing magnetic Stock utilization during iron 2;On the other hand by make rotor core 1 maximum outline radius R1 and each magnet 2 it is remote The radius R2 of circle is met where the arc surface of the side of the central axis of rotor core 1:0.84≤R2/R1≤0.88, is conducive to Optimize the structure snd size of rotor 100, so as to be conducive to improving the performance of motor.In addition, meeting the thickness H and R1 of magnet 2: 0.22≤H/R1≤0.245, is conducive to improving the anti-demagnetization capability of magnet 2, when rotor 100 is with motor, is conducive to carrying The reliability of high motor work, when motor is used on the compressor, is conducive to improving the reliability of compressor operating.
In some embodiments of the present utility model, as shown in fig. 6, the Breadth Maximum of magnet 2 is L, that is to say, that magnet Ultimate range between 2 in the radial direction two end faces is L, and L is met:1.28≤L/R1≤1.34.Thus, be conducive to excellent Change air-gap flux amount, so that air-gap field more levels off to sine, so as to further improve the performance of motor.
Alternatively, L/R1 value is:1.29th, 1.30,1.315,1.32,1.333 etc., so as to further optimize air gap magnetic Flux.
According to some embodiments of the present utility model, as shown in figure 4, when magnet 2 coordinates in mounting groove 11, magnet 2 Width on side side and mounting groove 11 just to the ultimate range between the side wall of the side side be D, That is, magnet 2 in the radial direction side side and mounting groove 11 just between the side wall of the side side most Big distance is D, and D is met:0.25mm≤D≤0.35mm.Thus, on the width by causing magnet 2 side side with Mounting groove 11 just between the side wall of the side side ultimate range D meet:0.25mm≤D≤0.35mm, can be effective The size of the leakage magnetic flux of ground control magnet 2.
Further, 0.28mm≤D≤0.33mm.More preferably, 0.29mm≤D≤0.31mm.
In some embodiments of the present utility model, rotor core 1 is stacked by multiple rotor punchings and formed.For example, multiple The punching of rotor 100 of annular stacks gradually to form rotor core 1 in the vertical direction.It is understood that above and below herein Direction is the axial direction of rotor core 1.Alternatively, rotor punching is silicon steel sheet.
Alternatively, the axial two ends of each magnet 2 have lead angle 21 respectively, and the magnet 2 that is arranged on of lead angle 21 is arranged on peace Guide effect can be played during in tankage 11.
The structure of the rotor 100 of one specific embodiment of the utility model is described in detail below with reference to Fig. 1-Fig. 6.
As Figure 1-Figure 4, the rotor 100 of the utility model embodiment includes rotor core 1 and four ferrite lattices 2.Rotor core 1 is stacked by multiple silicon steel sheets and formed.
Specifically, the cross section of rotor core 1 is formed as annular shape, and rotor core 1 is provided with four along its circumference Direction uniform intervals set and with the mounting groove 11 of the form fit of ferrite lattice 2, axle of each mounting groove 11 in rotor core 1 Rotor core 1 is extended upward through, four ferrite lattices 2 are corresponded with four mounting grooves 11, and each ferrite lattice 2 is accommodated In corresponding mounting groove 11.
As shown in figs 1 to 6, direction of each ferrite lattice 2 along the central axis towards rotor core 1 is recessed with general Ferrite lattice 2 is configured to circle-arc profile.
The outline radius of rotor core 1 is R1, and R1 is 30mm.In the remote rotor core 1 of each ferrite lattice 2 The radius of circle is R2 where the arc surface of the side of heart axis, and R2 is 25.9mm.
As shown in fig. 6, the thickness of ferrite lattice 2 is H, H is 6.9mm, and the Breadth Maximum of ferrite lattice 2 is L, and L is 39.4mm。
As shown in figure 4, when ferrite lattice 2 coordinates in mounting groove 11, one on the width of ferrite lattice 2 Side side and mounting groove 11 just to the ultimate range between the side wall of the side side be D, D is 0.304mm.
According to the rotor 100 of the utility model embodiment, the magnetic flux required for each discharge capacity refrigerator compressor motor is ensured While density size meets the requirements, the size of the leakage magnetic flux of magnet 2 can be efficiently controlled, air-gap field more levels off to just String, is conducive to the lifting of electric efficiency, and the anti-demagnetization capability of magnet 2 is strong, and magnet 2 is simple in construction, simplifies to magnet 2 Processing, improve processing magnet 2 when stock utilization.
According to the motor of the utility model embodiment, including the rotor 100 in above-described embodiment.
According to the motor of the utility model embodiment, the rotor 100 above-mentioned by setting is conducive to improving motor work Reliability, reduces cost.
According to the compressor of the utility model embodiment, including the motor in above-described embodiment.
According to the compressor of the utility model embodiment, the above-mentioned motor by setting is conducive to improving compressor operating Reliability.
According to the refrigerator of the utility model embodiment, including the compressor in above-described embodiment.
According to the refrigerator of the utility model embodiment, the above-mentioned compressor by setting is conducive to improving refrigerator work Reliability.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can in an appropriate manner be combined in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle of the present utility model and objective, replaced And modification, scope of the present utility model limits by claim and its equivalent.

Claims (10)

1. a kind of rotor, it is characterised in that including:
Rotor core, the cross section of the rotor core is formed as annular shape, and the rotor core is provided with multiple along its week The mounting groove set to direction uniform intervals, each mounting groove extends upward through the rotor iron in the axle of the rotor core Core;
Multiple magnet, multiple magnet are corresponded with multiple mounting grooves, and each magnet is contained in accordingly In the mounting groove, direction of each magnet along the central axis towards the rotor core is recessed with by the magnet structure Cause circle-arc profile;
Wherein, the maximum outline radius of the rotor core is R1, in the remote rotor core of each magnet The radius of circle where the arc surface of the side of heart axis is R2, and the thickness of the magnet is H, and described R1, R2 and H are met:0.84 ≤ R2/R1≤0.88,0.22≤H/R1≤0.245.
2. rotor according to claim 1, it is characterised in that the Breadth Maximum of the magnet is L, L is met:1.28≤L/ R1≤1.34。
3. rotor according to claim 1, it is characterised in that described when the magnet coordinates in the mounting groove On the width of magnet side side and the mounting groove just to the ultimate range between the side wall of the side side Met for D, D:0.25mm≤D≤0.35mm.
4. rotor according to claim 1, it is characterised in that the magnet is four.
5. rotor according to claim 1, it is characterised in that the magnet is ferrite lattice.
6. rotor according to claim 1, it is characterised in that the rotor core is stacked by multiple rotor punchings and formed.
7. rotor according to claim 1, it is characterised in that the rotor punching is silicon steel sheet.
8. a kind of motor, it is characterised in that including the rotor according to any one of claim 1-7.
9. a kind of compressor, it is characterised in that including motor according to claim 8.
10. a kind of refrigerator, it is characterised in that including compressor according to claim 9.
CN201720258975.3U 2017-03-16 2017-03-16 Rotor, motor, compressor and refrigerator Active CN206533207U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720258975.3U CN206533207U (en) 2017-03-16 2017-03-16 Rotor, motor, compressor and refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720258975.3U CN206533207U (en) 2017-03-16 2017-03-16 Rotor, motor, compressor and refrigerator

Publications (1)

Publication Number Publication Date
CN206533207U true CN206533207U (en) 2017-09-29

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112117846A (en) * 2019-06-19 2020-12-22 上海海立电器有限公司 Special-shaped permanent magnet structure of motor rotor and compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112117846A (en) * 2019-06-19 2020-12-22 上海海立电器有限公司 Special-shaped permanent magnet structure of motor rotor and compressor

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