CN207082915U - A kind of magneto and compressor - Google Patents
A kind of magneto and compressor Download PDFInfo
- Publication number
- CN207082915U CN207082915U CN201721112314.6U CN201721112314U CN207082915U CN 207082915 U CN207082915 U CN 207082915U CN 201721112314 U CN201721112314 U CN 201721112314U CN 207082915 U CN207082915 U CN 207082915U
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- magneto
- motor
- lead
- stator
- coil group
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Abstract
The utility model discloses a kind of magneto and compressor.The magneto includes stator and rotor, and the stator includes：Stator core；Multiple coil groups, each coil group include multiple coils being wound in stator tooth, and each coil group has the end of incoming cables being made up of the joint of identical quantity and leading-out terminal；There are more to be used to connect the joint of the coil group and the motor down-lead of circuit for controlling motor for two motor down-lead groups, each motor down-lead group；Wherein, the magneto is by the inverter offer power input with control algolithm, and unloaded back-emf ke values meet between the virtual value Um of maximum voltage and the motor line terminals between the terminal that the inverter provides to the magneto：4≤Um/ke≤56, the unit of the Um is volt, and the unit of the ke is/thousand rpms of volt.The utility model can also meet the torque output capability of motor under high frequency while the efficiency under taking into account low-and high-frequency.
Description
Technical field
It the utility model is related to technical field of motors, more particularly to a kind of magneto and compressor.
Background technology
High-speed electric expreess locomotive is one of main study hotspot of machine field all the time.Main shaft drives, centrifuge, turbine pump etc.
Many occasions have the application of high-speed electric expreess locomotive.
When power input to machine, the timing of electromagnetic load one, by increasing motor speed, it is possible to achieve the miniaturization of motor,
Reach the purpose for reducing motor cost, reducing motor space-consuming, increase power of motor and torque density.Therefore, in compressor
In industry, high-speed small-size rapidly becomes one of important study hotspot direction.
Under normal circumstances, for high-speed electric expreess locomotive refers mainly to rotating speed, but motor operation is not merely paid close attention in actual design
Rotating speed.Because motor will merely reach high rotating speed, theoretically see not so difficult.The problem of crucial is the work(that motor is provided
Rate size, i.e. motor operation at high speed when still ensure that certain output.The motor designed by high speed, can be obtained
Relatively low back emf coefficient, motor can the stable operations in the broad range of speeds.But real electrical machinery is once made, stator
Coil group parameter can not arbitrarily change to meet the demand for taking into account low-and high-frequency efficiency and the lower output regulation torque of high speed of motor.
Utility model content
Main purpose of the present utility model is to provide a kind of magneto, it is intended to solves magneto of the prior art not
The defects of low-and high-frequency efficiency can be taken into account.
To achieve the above object, the utility model proposes magneto, including stator and rotor, the stator include：
Stator core, the stator core have it is multiple along its circumferentially spaced stator tooth, it is two neighboring described
Stator groove gap is formed between stator tooth；
Multiple coil groups, each coil group include multiple coils being wound in the stator tooth, each described
Coil group has the end of incoming cables being made up of the joint of identical quantity and leading-out terminal；
Two motor down-lead groups, each motor down-lead group have the more joints and electricity for being used to connect the coil group
The motor down-lead of machine control circuit, the total radical of motor down-lead and the quantity phase of the coil group in each motor down-lead group
It is connected Deng, the every motor down-lead with an end of incoming cables of coil group or a leading-out terminal；
Wherein, the magneto provides power input by the inverter with control algolithm, and the inverter is to described
Unloaded back-emf ke values meet between the virtual value Um of maximum voltage and the motor line terminals between the terminal that magneto provides：4
≤ Um/ke≤56, the unit of the Um is volt, and the unit of the ke is/thousand rpms of volt.
Preferably, the peak power Pm and the Um of the magneto meet：Pm/Um≤50, the unit of the Pm are
Watt.
Preferably, the stator also includes plug connector, and the more motor down-leads pass through the plug connector and motor control
Circuit grafting.
Preferably, the quantity of the plug connector is two, and each coil group includes lead-in line joint and outlet joint, two
A motor down-lead with being connected the lead-in line joint in the individual plug connector connects, and another is with being connected the outlet joint
Motor down-lead connection.
Preferably, the rotor includes rotor core and magnetic part, and the rotor core has multiple at circumferentially-spaced point
The slot of cloth, each it is embedded with the magnetic part in the slot.
Preferably, the rotor includes rotor core and magnetic part, and the magnetic part is multiple and is arc-shaped structure, institute
State the outer wall that magnetic part is attached at the rotor core.
Preferably, the rotor includes rotor core and magnetic part, and the magnetic part is cylindrical structure and is sheathed on described
The outer wall of rotor core.
Preferably, the rated speed of the magneto is more than or equal to 6000 revs/min.
Preferably, the maximum (top) speed of the magneto is more than or equal to 9000 revs/min.
The utility model also provides a kind of compressor, including housing and the cylinder and bent axle that are arranged in housing, the song
Axle one end is connected with the rotor of the magneto of foregoing any one, and the bent axle other end is connected with the piston in the cylinder.
In the technical solution of the utility model, the stator of magneto draws including stator core, coil group and two motors
Line group, the motor that each motor down-lead group has the more joints and circuit for controlling motor for being used to connect the coil group draw
Line, the magneto provide power input by the control inverter with control algolithm, and the inverter is to the magneto
Unloaded back-emf ke values meet between the virtual value Um of maximum voltage and the motor line terminals between the terminal of offer：4≤Um/ke≤
56, the Um unit are volt, and the unit of the ke is/thousand rpms of volt.In the range of aforementioned applications, the utility model energy
The running speed scope of motor, and lifting motor weak magnetic ability simultaneously are effectively expanded, significantly reduces copper cash electric current in high frequency
Density, reduce motor feels hot.Rated motor rotating speed and maximum (top) speed of the present utility model are high, have speed-regulating range width, at a high speed
The advantages of miniaturization and electric efficiency are high.Meanwhile sets of stator coils parameter can change, and then the efficiency in the case where taking into account low-and high-frequency
While, meet the torque output capability of motor under high frequency.
Further, the utility model can effectively reduce motor tip lengths, reduce cost, and can eliminate triple-frequency harmonics phase
Back-emf weakens due to adding circulation loss caused by the harmonic wave of opposite potential, so as to lifting motor performance.
In addition, coil group of the present utility model uses the connected mode without neutral point, coil group and motor down-lead are simplified
Connection process.In the case where ensureing the identical voltage-current characteristic of motor, it can suitably reduce the coil diameter of coil group, so as to
Improve the manufacturing of coil group, reduce straight the material cost and manufacturing cost of coil group, while kelvin effect can also be reduced, reduce
The AC resistance of coil group, lifting motor efficiency.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the magneto of the embodiment of the utility model one；
Fig. 2 is the structural representation of the stationary part of the embodiment of the utility model one；
Fig. 3 is the structural representation of the rotor of the embodiment of the utility model one；
Fig. 4 is the structural representation of the rotor of another embodiment of the utility model；
Fig. 5 is the structural representation of the rotor of the another embodiment of the utility model；
Fig. 6 is the structural representation of the compressor of the utility model embodiment.
Drawing reference numeral explanation：
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals
Or the interaction relationship of two elements, limited unless otherwise clear and definite.For the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the requires of the utility model.
The utility model provides a kind of magneto.
Fig. 1, the magneto that the utility model embodiment provides, including stator 10 and rotor 20, stator 10 is refer to wrap
Include stator core 101 and coil group, wherein, stator core 101 have it is multiple along its circumferentially spaced stator tooth 101b,
Stator groove gap 101a is formed between two neighboring stator tooth 101b；Coil group is wound on stator tooth 101b and including multiple
Coil group 102.
It should be clear that each coil group 102 includes multiple coils being wound on stator tooth 101b, each coil group
102 have by the joint 102a of the identical quantity ends of incoming cables formed and leading-out terminal.
The stator 10 also includes two motor down-lead groups, and there are each motor down-lead group more to be used to connect coil group 102
Joint 102a and circuit for controlling motor motor down-lead 103, the total radical of motor down-lead and coil in each motor down-lead group
The quantity of group 102 is equal, and every motor down-lead 103 is connected with an end of incoming cables of a coil group 102 or a leading-out terminal.
Because every motor down-lead 103 is connected with a joint 102a of a coil group 102, therefore, each coil group
102 each joint 102a is connected with circuit for controlling motor, so that circuit for controlling motor can be according to the work of magneto
Make situation to switch over the mode of connection of multiple coil groups 102 in motor.Such as：Circuit for controlling motor is according to magneto
Different operating frequency, control coil group switch between the Y types mode of connection and delta connection mode, so as to take into account motor
Work efficiency under high and low frequency.
The magneto of the embodiment provides power input by the inverter with control algolithm, and inverter is to magneto
Unloaded back-emf ke values meet between the virtual value Um of maximum voltage and motor line terminals between the terminal of offer：4≤Um/ke≤56,
The unit of the Um is volt, and the unit of the ke is/thousand rpms of volt.In the application, previous embodiment can be effective
The running speed scope of motor, and lifting motor weak magnetic ability simultaneously are expanded in ground, significantly reduce copper cash current density in high frequency,
Reduce motor feels hot.Rated motor rotating speed and maximum (top) speed of the present utility model are high, have speed-regulating range width, high-speed small-size
And electric efficiency it is high the advantages of.Meanwhile sets of stator coils parameter can change, and then the efficiency in the case where taking into account low-and high-frequency is same
When, meet the torque output capability of motor under high frequency.
Further, the utility model can effectively reduce motor tip lengths, reduce cost, and can eliminate triple-frequency harmonics phase
Back-emf weakens due to adding circulation loss caused by the harmonic wave of opposite potential, so as to lifting motor performance.
In addition, coil group 102 of the present utility model uses the connected mode without neutral point, coil group 102 and electricity are simplified
The connection process of power traction line 103.In the case where ensureing the identical voltage-current characteristic of motor, it can suitably reduce coil group 102
Coil diameter, so as to improve the manufacturing of coil group 102, straight the material cost and manufacturing cost of coil group 102 are reduced, while may be used also
To reduce kelvin effect, the AC resistance of coil group 102, lifting motor efficiency are reduced.
It is preferred that the peak power Pm and foregoing Um of magneto meet：The unit of Pm/Um≤50, wherein Pm is watt.At this
On the basis of application, can further meet motor takes into account low-and high-frequency efficiency and the at a high speed demand of lower output regulation torque.
In order to quickly and easily by the connection of multiple motor down-leads 103 and circuit for controlling motor, in the present embodiment, stator 10
Plug connector 104 can also be included, more motor down-leads 103 pass through a plug connector 104 and circuit for controlling motor grafting.Wherein, should
Plug connector 104 can use structure as shown in Figure 1, can also use structure as shown in Figure 2.
In the embodiment shown in fig. 1, the quantity of plug connector 104 be two, each coil group 102 include lead-in line joint and
Outlet joint, one in two plug connectors 104 connects with being connected the motor down-lead 103 of lead-in line joint, and another is with being connected out
The motor down-lead 103 of wire terminal connects.The plug connector 104 is junction box structure, more square with the connection of more motor down-leads 103
Just.
In the embodiment shown in Figure 2, the quantity of plug connector 104 is identical with the quantity of motor down-lead 103, and plug connector
104 connect one to one with motor down-lead 103.The plug connector 104 is conductive insert structure, and cost is relatively low.In addition, in Figure 5
Also motor down-lead 103 is divided to for two groups, what is be connected with the lead-in line joint of coil group 102 is divided into one group, the outlet with coil group 102
Joint connection is divided into another group.
The quantity of coil group 102 of coil group depending on the model of motor, such as：The sum of motor down-lead 103 can be made
Measure as the six roots of sensation, the quantity of coil group 102 is three, and each coil group 102 has two joint 102a, two joint 102a difference
For lead-in line joint and outlet joint, so that circuit for controlling motor is more preferable to the control effect of motor.
Fig. 3 is the structural representation of the rotor 20 of the embodiment of the utility model one, and rotor 20 includes rotor core 201 and magnetic
Property part 202, rotor core 201 have multiple slots in circumferentially-spaced distribution, magnetic part 202 are embedded with each slot.Should
The rotor magnetic pole structure of embodiment is using built-in, slot circumferentially insertion setting.Horizontal stroke of this outer rotor iron core 201 perpendicular to circumference
Section has rounded outer profiles, can reduce the wind moussing loss of motor operating at high speeds, lifting motor efficiency.It is meanwhile circular outer
The rotor punching of profile is more convenient for manufacturing.
Fig. 4 is the structural representation of the rotor 20 of another embodiment of the utility model, and rotor 20 also includes rotor core 201
With magnetic part 202, unlike aforementioned structure, magnetic part 202 is multiple and is arc-shaped structure, and magnetic part 202 is attached at
The outer wall of rotor core 201.The rotor magnetic pole structure of the embodiment uses surface-mount type, and magnetic part 202 is embedded in rotor core 201
Outer radial periphery on, can by it is gluing, tie up, the mode such as spacing is fixed.
Fig. 5 is the structural representation of the rotor 20 of the another embodiment of the utility model, and rotor 20 also includes rotor core 201
With magnetic part 202, unlike aforementioned structure, magnetic part 202 is cylindrical structure and is sheathed on the outer wall of rotor core 201.
The magnetic part 202 of the embodiment is annular integrative-structure, is easy to manufacture, and does not fall out hair in high speed rotation magnetic part 202
The raw risk for sweeping thorax.
In the present embodiment, when the specified running speed of magneto is more than or equal to 6000 revs/min, or, when forever
When the maximum running speed of magneto is more than or equal to 9000 revs/min, using every motor down-lead 103 and a coil group
A 102 joint 102a connection scheme is higher to the improved efficiency of motor.
In addition, referring to Fig. 6, the utility model also provides a kind of compressor, the compressor includes housing 30 and is arranged at
The rotor 20 of the magneto of cylinder 50 and bent axle 40 in housing 30, the one end of bent axle 40 and previous embodiment connects, bent axle 40
The other end is connected with the piston 60 in cylinder 50.Rotated by rotor 20 with dynamic crankshaft 40, and then can the flexible shifting of band piston 60
It is dynamic.The compressor also includes base bearing 70 and supplementary bearing 80, and base bearing 70 and supplementary bearing 80 are respectively from the upper end of bent axle 40 with
End is set on bent axle 40, and is fixedly connected with the upper and lower ends of cylinder 50 and is sealed with the compression chamber to cylinder 50.
Motor is arranged in the accommodating chamber 31 of housing 30, and can be set on the inwall of accommodating chamber 31 and the motor control of motor
The binding post of circuit processed connection, the 104 corresponding grafting of plug connector of the binding post and motor, so as to by motor down-lead 103 with
Circuit for controlling motor electrically connects.By using the motor of above-described embodiment, be advantageous to significantly improve compressor operating at low frequency
Efficiency, lift the cost performance of compressor.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure transformation under design of the present utility model, made using the utility model specification and accompanying drawing content, or
Directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of magneto, it is characterised in that including stator and rotor, the stator includes：
Stator core, the stator core have multiple along its circumferentially spaced stator tooth, the two neighboring stator
Stator groove gap is formed between double wedge；
Multiple coil groups, each coil group include multiple coils being wound in the stator tooth, each coil
Group is with the end of incoming cables and leading-out terminal being made up of the joint of identical quantity；
Two motor down-lead groups, each motor down-lead group have more joint and the motor controls for being used to connect the coil group
The motor down-lead of circuit processed, each the total radical of motor down-lead in the motor down-lead group is equal with the quantity of the coil group,
The every motor down-lead is connected with an end of incoming cables of coil group or a leading-out terminal；
Wherein, the motor provides power input by the inverter with control algolithm, and the inverter is to the magneto
Unloaded back-emf ke values meet between the virtual value Um of maximum voltage and the motor line terminals between the terminal of offer：4≤Um/ke≤
56, the Um unit are volt, and the unit of the ke is/thousand rpms of volt.
2. magneto according to claim 1, it is characterised in that the peak power Pm and the Um of the magneto
Meet：Pm/Um≤50, the unit of the Pm is watt.
3. magneto according to claim 1, it is characterised in that the stator also includes plug connector, the more electricity
Power traction line passes through the plug connector and circuit for controlling motor grafting.
4. magneto according to claim 3, it is characterised in that the quantity of the plug connector is two, each described
Coil group includes lead-in line joint and outlet joint, and one in two plug connectors draws with being connected the motor of the lead-in line joint
Line is connected, and another is connected with being connected the motor down-lead of the outlet joint.
5. according to the magneto described in claim any one of 1-4, it is characterised in that the rotor includes rotor core and magnetic
Property part, the rotor core has multiple slots in circumferentially-spaced distribution, and the magnetic part is embedded with each slot.
6. according to the magneto described in claim any one of 1-4, it is characterised in that the rotor includes rotor core and magnetic
Property part, the magnetic part is multiple and is arc-shaped structure, and the magnetic part is attached at the outer wall of the rotor core.
7. according to the magneto described in claim any one of 1-4, it is characterised in that the rotor includes rotor core and magnetic
Property part, the magnetic part is cylindrical structure and is sheathed on the outer wall of the rotor core.
8. according to the magneto described in claim any one of 1-4, it is characterised in that the rated speed of the magneto is big
In or equal to 6000 revs/min.
9. according to the magneto described in claim any one of 1-4, it is characterised in that the maximum (top) speed of the magneto is big
In or equal to 9000 revs/min.
10. a kind of compressor, it is characterised in that including housing and the cylinder and bent axle that are arranged in housing, described bent axle one end
It is connected with the rotor of the magneto described in claim any one of 1-9, the bent axle other end and the piston in the cylinder
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112314.6U CN207082915U (en) | 2017-08-31 | 2017-08-31 | A kind of magneto and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112314.6U CN207082915U (en) | 2017-08-31 | 2017-08-31 | A kind of magneto and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082915U true CN207082915U (en) | 2018-03-09 |
Family
ID=61421358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721112314.6U Active CN207082915U (en) | 2017-08-31 | 2017-08-31 | A kind of magneto and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370257A (en) * | 2017-08-31 | 2017-11-21 | 广东美芝制冷设备有限公司 | A kind of magneto and compressor |
-
2017
- 2017-08-31 CN CN201721112314.6U patent/CN207082915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370257A (en) * | 2017-08-31 | 2017-11-21 | 广东美芝制冷设备有限公司 | A kind of magneto and compressor |
| CN107370257B (en) * | 2017-08-31 | 2024-03-12 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor |
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