CN207184295U - Magneto, compressor and refrigeration system - Google Patents
Magneto, compressor and refrigeration system Download PDFInfo
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- CN207184295U CN207184295U CN201720796480.6U CN201720796480U CN207184295U CN 207184295 U CN207184295 U CN 207184295U CN 201720796480 U CN201720796480 U CN 201720796480U CN 207184295 U CN207184295 U CN 207184295U
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- magneto
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- phase windings
- joint
- compressor
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Abstract
The utility model discloses a kind of magneto, compressor and refrigeration system, in the magneto, the profile circular diameter D (m) of stator minimum inner circumferential, the profile diameter of a circle d (m) of rotor maximum periphery, the fundamental voltage amplitude Bm1 (T) of air gap flux density at rotor mean gap, the axial length L (m) of rotor, the series connection total number of turns Ns per phase winding and inversion from the frequency converter to magneto power supply before bus DC voltage Udc (V) be arranged to：0.003Udc≤(D+d) × L × Bm1 × Ns≤0.008Udc, wherein, D, d, Bml, L, Udc are the value of not tape unit.According to the magneto of the utility model embodiment, there is higher efficiency.
Description
Technical field
The utility model designs refrigeration technology field, more particularly to a kind of magneto, compressor and refrigeration system.
Background technology
Compressor field in correlation technique, the stator of magneto use the winding of Y-connection always.Conventional art,
The occasion of some high powers or low-voltage, winding conductor is thick, and manufacturing is poor and performance can decline.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of magneto, efficiency height with a new purpose.
The utility model also proposed a kind of compressor and refrigeration system.
According to the magneto of the utility model embodiment, there is stator and rotor, the stator have stator core with
Stator winding, the rotor have a rotor core and the permanent magnet being arranged on rotor core, the stator winding include A phases around
Group, B phase windings and C phase windings, second group of joint of the A phase windings connect same root with first group of joint of the B phase windings
Lead-out wire, second group of joint of the B phase windings connect same root lead-out wire, the C phases with first group of joint of the C phase windings
Second group of joint of winding connects same root lead-out wire, the wheel of the stator minimum inner circumferential with first group of joint of the A phase windings
Wide circular diameter D (m), the profile diameter of a circle d (m) of the rotor maximum periphery, the air gap magnetic at the rotor mean gap
Close fundamental voltage amplitude Bm1 (T), the axial length L (m) of the rotor, the series connection total number of turns Ns per phase winding and to magneto
Bus DC voltage Udc (V) before the inversion of the frequency converter of power supply is arranged to：0.003Udc≤(D+d)×L×Bm1×Ns≤
0.008Udc, wherein, D, d, Bml, L, Udc are the value of not tape unit.
According to the magneto of the utility model embodiment, there is provided magneto key parameter scope design distinguished in
The parameter area of traditional compressor motor, improve traditional parameters range applications compressor caused by when delta windings structure
Efficiency declines, so that compressor permanent magnet motor is had a good application prospect using delta windings structure.
In addition, according to the magneto of the utility model above-described embodiment, there can also be technical characteristic additional as follows：
In one embodiment of the present utility model, the Udc meets：250≤Udc≤540.
Further, 1.2≤(D+d) × L × Bm1 × Ns≤4.0.
In one embodiment of the present utility model, the Udc meets：Udc≤72.
Further, 0.03≤(D+d) × L × Bm1 × Ns≤0.5.
In one embodiment of the present utility model, there is one or 2 per phase winding and with upper set of coils.
In one embodiment of the present utility model, second group of joint of the A phase windings and the first of the B phase windings
Group joint has identical phase, second group of joint of the B phase windings and the first of the C phase windings in synchronization electric current
Group joint synchronization electric current has an identical phase, second group of joint of the C phase windings with first group of the A phase windings
Joint has identical phase in synchronization electric current.
The utility model also proposed a kind of compressor, including according to foregoing magneto.
The utility model also proposed a kind of refrigeration system, and the refrigeration system includes：Compressor and frequency converter.The pressure
Contracting machine is according to foregoing compressor；The frequency converter is connected with the compressor, and the frequency converter has inverter.
In one embodiment of the present utility model, the frequency converter also has rectifier.
Brief description of the drawings
Fig. 1 is the magneto perspective view that the utility model is connected with frequency converter.
Fig. 2 is sectional view of the magneto on axle vertical plane in Fig. 1.
Fig. 3 and Fig. 4 is the connection diagram of Fig. 2 permanent magnet motor stator winding difference embodiment.
Fig. 5 is the air gap magnetic density waveform figure using magneto of the present utility model.
Fig. 6 is fundamental wave of Fig. 5 air gap flux density after Fourier decomposition and harmonic wave accounting figure.
Fig. 7 is the energy of compressor 100 for carrying the magneto 1 that prior art is carried in magneto contrast of the present utility model
Imitate schematic diagram.
Fig. 8 is the compressor schematic diagram that the utility model is related to.
Reference：Compressor 100, cylinder 2, base bearing 3, supplementary bearing 4, piston 5, bent axle 6, magneto 1, stator
11, rotor 12, stator core 111, stator winding 112, rotor core 121, permanent magnet 122, inverter 7, rectifier 8.
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 is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In compressor 100, if magneto 1 is connected using triangle, manufacturing can be improved to a certain extent.And three
If angular winding sets the parameters such as magnetic property, size and winding by traditional scope, it can cause that motor performance is low, compressor
100 it is not energy efficient the problems such as.Therefore, the utility model provides a kind of magneto 1 of new construction.
The magneto 1 of the utility model embodiment is described with reference to the accompanying drawings.
According to the magneto 1 of the utility model embodiment, there is stator 11 and rotor 12,
The stator 11 has stator core 111 and stator winding 112, and the rotor 12 has rotor core 121 and set
The permanent magnet 122 on rotor core 121 is put, the stator winding 112 includes A phase windings, B phase windings and C phase windings, described
Second group of joint of A phase windings and first group of joint of the B phase windings connect same root lead-out wire, and the second of the B phase windings
First group of joint of group joint and the C phase windings meets same root lead-out wire, second group of joint and the A of the C phase windings
First group of joint of phase winding connects same root lead-out wire.
Wherein, the profile circular diameter D (m) of the 11 minimum inner circumferential of stator, the profile of 12 maximum periphery of the rotor are justified
The fundamental voltage amplitude Bm1 (T) of air gap flux density at diameter d (m), the mean gap of the rotor 12, the axial direction of the rotor 12 are long
The bus DC voltage spent before L (m), the series connection total number of turns Ns per phase winding and the frequency converter powered to magneto 1 inversion
Udc (V) is arranged to：0.003Udc≤(D+d) × L × Bm1 × Ns≤0.008Udc, wherein, D, d, Bml, L, Udc be without
The value of unit.In addition, the fundamental voltage amplitude Bm1 of the air gap flux density at the mean gap of rotor 12 is preferably the detection at 25 DEG C
Value.
According to the magneto 1 of the utility model embodiment, there is provided magneto 1 key parameter scope design distinguished
In the parameter area of the motor of traditional compressor 100, traditional parameters range applications are improved caused by when delta windings structure
The efficiency of compressor 100 declines, so that the magneto 1 of compressor 100 has good application using delta windings structure
Prospect.
In addition, according to the magneto 1 of the utility model above-described embodiment, there can also be technology additional as follows special
Sign：
Magneto 1 of the present utility model can use powered by direct current, Alternating Current Power Supply can also be used, in order to further
Efficiency is improved, when using AC-powered, the Udc meets：250≤Udc≤540.Further, 1.2≤(D+d) × L
×Bm1×Ns≤4.0。
When using powered by direct current, the Udc meets：Udc≤72.Further, 0.03≤(D+d) × L × Bm1 ×
Ns≤0.5。
Certainly, in fact, the magneto 1 in the utility model does not have too big requirement to power supply type, for example,
Can use meet it is above-mentioned " 250≤Udc≤540 " and " powered by direct current of 1.2≤(D+d) × L × Bm1 × Ns≤4.0 ",
It can use and meet " Udc≤72 " and " AC-powered of 0.03≤(D+d) × L × Bm1 × Ns≤0.5 ".
In one embodiment of the present utility model, there is one or 2 per phase winding and with upper set of coils.So as to
Further improve energy consumption.
In one embodiment of the present utility model, second group of joint of the A phase windings and the first of the B phase windings
Group joint has identical phase, second group of joint of the B phase windings and the first of the C phase windings in synchronization electric current
Group joint synchronization electric current has an identical phase, second group of joint of the C phase windings with first group of the A phase windings
Joint has identical phase in synchronization electric current.
The utility model also proposed a kind of compressor 100, including according to foregoing magneto 1.
According to the compressor 100 of the utility model embodiment, as a result of foregoing magneto 1, compression is improved
The efficiency of machine 100, there is good application prospect.
The utility model also proposed a kind of refrigeration system, and the refrigeration system includes：Compressor 100 and frequency converter.Institute
It is according to foregoing compressor 100 to state compressor 100；The frequency converter is connected with the compressor 100, and the frequency converter has
Inverter 7.
In one embodiment of the present utility model, the frequency converter also has rectifier 8.
Fig. 1 is the axis projection schematic diagram of magneto 1 for the utility model first embodiment for being connected with frequency converter.Compression
The three-phase motor with permanent magnets 1 of machine 100, there is stator 11 and rotor 12.The stator 11 has stator core 111 and stator winding
112.Rotor 12 has rotor core 121 and the permanent magnet 122 being arranged on rotor core 121.The A of the stator winding 112
Second group of joint of phase winding connects same root lead-out wire with first group of joint of B phase windings, and this two groups of joints are the same as the moment
Carving electric current has identical phase；Second group of joint of the B phase windings of the stator winding 112 connects with first group of C phase windings
Head connects same root lead-out wire, and this two groups of joints have identical phase in synchronization electric current；The stator winding 112
Second group of joint of C phase windings connects same root lead-out wire with first group of joint of A phase windings, and this two groups of joints are the same as the moment
Carving electric current has identical phase.
Profile diameter of a circle D (m), the profile diameter of a circle of 12 maximum periphery of the rotor of the 11 minimum inner circumferential of stator
Fundamental voltage amplitude (25 DEG C) Bm1 (T) of air gap flux density at d (m), the mean gap of the rotor 12, the axial direction of the rotor 12
Bus direct current before length L (m), the series connection total number of turns Ns per phase winding and the frequency converter powered to magneto 1 inversion
Pressure Udc (v) is arranged to：0.003Udc≤(D+d)×L×Bm1×Ns≤0.008Udc.Wherein D, d, Bml, L, Udc are not
The numerical value of tape unit.
The frequency converter being connected with magneto 1, including at least an inverter 7, the front end of inverter 7 is direct current, directly
It is Udc to flow busbar voltage, by the inversion of inverter 7, is converted into the alternating current of controllable frequency.When power supply is direct current,
Dc source is directly connected to inverter 7, realizes the process of direct current → exchange；When power supply is alternating current, it is also necessary to one
Individual rectifier 8, AC power connect the input side of rectifier 8, the input side of the outlet side connection inverter 7 of rectifier 8, realized
The process of exchange → direct current → exchange.
In the field of compressor 100, the utility model is different from conventional art, set magneto 1 key parameter it is excellent
Scope is selected, while applies delta windings structure, realizes the excellent manufacturing of stator 11, while meet the efficient of compressor 100
Property.
Fig. 2 is sectional view of the magneto 1 on axle vertical plane in Fig. 1.In first embodiment, magneto 1 is 9 grooves
6 pole structures.There are 3 groups of coils per phase winding, every group of coil winding is on a tooth of stator 11.Per phase winding there is 1 inlet wire to connect
Head and an outlet joint, connected by transition wire between the different group coils of same phase winding.Winding joint and lead-out wire it
Between one of which connected mode citing：A phase outlet joint+B phases lead-in line joint → lead-out wire one；B phase outlet joints+C mutually enters
Wire terminal → lead-out wire two；C phase outlet joint+A phases lead-in line joint → lead-out wire three.It should be noted that the utility model carries
And winding connection, have a variety of concrete modes.
Fig. 3 is the winding connection diagram of Fig. 2 magneto 1.In first embodiment, using string between same phase winding
Connection mode.The number of turn of three groups of coils of one phase winding is respectively N1, N2, N3, then the series connection total number of turns of the phase winding is Ns=N1+
N2+N3。
Fig. 4 is the winding connection diagram of second embodiment of the present utility model.In second embodiment, same phase winding it
Between use parallel way, parallel branch number is 3.In general, in order to ensure the balance of motor, under parallel way, set same
The each group coil turn of one phase approaches, preferably equal.The number of turn of three groups of coils in parallel is N1, then the total circle of the series connection of the winding
Number is Ns=N1.
Fig. 5 is the air gap magnetic density waveform figure using magneto 1 of the present utility model.In the gap interposition of rotor 12
Put, be i.e. on the circumference of (D+d)/2 in Fig. 2, extract the air gap flux density of magneto 1, the air gap flux density in one of them electric cycle
Waveform is as shown in Figure 5.Under the influence of the factors such as the structure of embedded rotor 12, the slot effect of rotor 12, the waveform of air gap flux density
It is not preferable sine wave, in waveform in addition to fundamental wave, also with harmonic wave.
Fig. 6 is fundamental wave of Fig. 5 air gap flux density after Fourier decomposition and harmonic wave accounting figure.Fig. 6 only list fundamental wave and
9 subharmonic before in addition to fundamental wave.Air gap flux density, it is the core index for reacting the performance of magneto 1 and noise.When energy converts,
The dfundamental-harmonic pair driving rotor 12 of air gap flux density rotates output and played a major role, and therefore, the design of air gap flux density fundamental wave is even more important.
Fig. 7 is the compressor 100 for carrying the magneto 1 that prior art is carried in the contrast of magneto 1 of the present utility model
Efficiency schematic diagram.In general, compressor 100 is under the low speed, with comprehensive parameters (D+d) × L × Bm1 × Ns rise, pressure
The efficiency of contracting machine 100 is in rising trend；At high speeds, as (D+d) × L × Bm1 × Ns rise is on a declining curve, or even as (D
+ d) when being higher than some critical point, compressor 100 can not operate × L × Bm1 × Ns at high speeds.With certain busbar voltage Udc=
It is (single in (D+d) × L × Bm1 × Ns≤1.0 when carrying the magneto 1 of conventional spider winding exemplified by 310V compressor 100
Position：Wb in the range of), the high speed efficiency of compressor 100 is maintained at a higher level, while takes into account low speed efficiency, can be with
A larger value is selected before flex point, ensureing the full frequency band of compressor 100 has excellent performance；Carry the utility model
Winding construction magneto 1 when, if set relevant parameter tradition preferably in the range of, the compressor 100 under low speed
Efficiency is very low, and sets 1.2≤(D+d) × L × Bm1 × Ns≤4.0 (unit：Wb), the full frequency band of compressor 100 is respectively provided with excellent
Performance.
Fig. 8 is the schematic diagram of compressor 100 that the utility model is related to.It is of the present utility model in addition to above-mentioned magneto 1
Compressor 100 also includes：The compression members such as cylinder 2, base bearing 3, supplementary bearing 4, piston 5 and bent axle 6.
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 ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, limited unless otherwise clear and definite.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (10)
1. a kind of magneto, having stator and rotor, the stator has stator core and stator winding, and the rotor has
Rotor core and the permanent magnet being arranged on rotor core, it is characterised in that：The stator winding includes A phase windings, B phase windings
With C phase windings, second group of joint of the A phase windings connects same root lead-out wire with first group of joint of the B phase windings, described
Second group of joint of B phase windings and first group of joint of the C phase windings connect same root lead-out wire, and the second of the C phase windings
First group of joint of group joint and the A phase windings connects same root lead-out wire,
The profile circular diameter D (m) of the stator minimum inner circumferential, the profile diameter of a circle d (m), described of the rotor maximum periphery
The fundamental voltage amplitude Bm1 (T) of air gap flux density at rotor mean gap, the axial length L (m) of the rotor, per phase winding
Bus DC voltage Udc (V) before the inversion of series connection total number of turns Ns and the frequency converter powered to magneto is arranged to：
0.003Udc≤(D+d) × L × Bm1 × Ns≤0.008Udc, wherein, D, d, Bml, L, Udc are the value of not tape unit.
2. magneto according to claim 1, it is characterised in that：The Udc meets：250≤Udc≤540.
3. magneto according to claim 2, it is characterised in that：1.2≤(D+d)×L×Bm1×Ns≤4.0.
4. magneto according to claim 1, it is characterised in that：The Udc meets：Udc≤72.
5. magneto according to claim 4, it is characterised in that：0.03≤(D+d)×L×Bm1×Ns≤0.5.
6. magneto according to claim 1, it is characterised in that：There is one or 2 per phase winding and with coil
Group.
7. according to the magneto any one of claim 1-6, it is characterised in that second group of the A phase windings connects
First group of joint of head and the B phase windings has identical phase in synchronization electric current, and second group of the B phase windings connects
First group of joint synchronization electric current of head and the C phase windings has identical phase, second group of joint of the C phase windings
There is identical phase in synchronization electric current with first group of joint of the A phase windings.
8. a kind of compressor, it is characterised in that including the magneto according to any one of claim 1-7.
9. a kind of refrigeration system, it is characterised in that the refrigeration system includes：
Compressor, the compressor are the compressor according to claim 8；
Frequency converter, the frequency converter are connected with the compressor, and the frequency converter has inverter.
10. refrigeration system according to claim 9, it is characterised in that the frequency converter also has rectifier.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796480.6U CN207184295U (en) | 2017-06-30 | 2017-06-30 | Magneto, compressor and refrigeration system |
| PCT/CN2017/113996 WO2019000838A1 (en) | 2017-06-30 | 2017-11-30 | Permanent magnet motor, compressor and refrigeration system |
| JP2019570984A JP2020524477A (en) | 2017-06-30 | 2017-11-30 | Permanent magnet motor, compressor and refrigeration system |
| EP17916058.5A EP3648319A4 (en) | 2017-06-30 | 2017-11-30 | Permanent magnet motor, compressor and refrigeration system |
| US16/730,199 US11177705B2 (en) | 2017-06-30 | 2019-12-30 | Permanent magnet motor, compressor and refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796480.6U CN207184295U (en) | 2017-06-30 | 2017-06-30 | Magneto, compressor and refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184295U true CN207184295U (en) | 2018-04-03 |
Family
ID=61735508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720796480.6U Withdrawn - After Issue CN207184295U (en) | 2017-06-30 | 2017-06-30 | Magneto, compressor and refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171522A (en) * | 2017-06-30 | 2017-09-15 | 广东美芝制冷设备有限公司 | Magneto, compressor and refrigeration system |
-
2017
- 2017-06-30 CN CN201720796480.6U patent/CN207184295U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171522A (en) * | 2017-06-30 | 2017-09-15 | 广东美芝制冷设备有限公司 | Magneto, compressor and refrigeration system |
| CN107171522B (en) * | 2017-06-30 | 2023-06-27 | 广东美芝制冷设备有限公司 | Permanent magnet motor, compressor and refrigerating system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180403 Effective date of abandoning: 20230627 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180403 Effective date of abandoning: 20230627 |
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| AV01 | Patent right actively abandoned |