CN207082917U - A kind of motor and compressor - Google Patents
A kind of motor and compressor Download PDFInfo
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- CN207082917U CN207082917U CN201721113721.9U CN201721113721U CN207082917U CN 207082917 U CN207082917 U CN 207082917U CN 201721113721 U CN201721113721 U CN 201721113721U CN 207082917 U CN207082917 U CN 207082917U
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- motor
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Abstract
The utility model discloses a kind of motor and compressor.The motor includes stator and rotor, and the stator includes：Stator core, the stator core have multiple along its circumferentially spaced stator tooth, and stator groove gap is formed between the two neighboring stator tooth；Coil group, the coil group are wound in the stator tooth and have at least two joints including multiple coil groups, each coil group；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 quantity of the stator groove gap is Z, and the half of the rotor number of poles is P, when the coil of the coil group is across only a stator tooth, Z/P=3 or 2.4；When the coil of the coil group is across at least three stator tooths, Z/P=6 or 12.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 motor and compressor.
Background technology
Because the excitation field of rotary DC frequency-changeable compressor permanent magnet motor is unadjustable, therefore its speed adjustable range
Smaller, usually 30rps-90rps, continues to lift up rotating speed, and permasyn morot can enter weak magnetic area, and coil group electric current is rapid
Rise, wire electricity is close easily exceeded, and the temperature rise of coil group, compressor exhaust temperature can be raised significantly, and this can influence motor reliability
And motor performance, insulation ag(e)ing can be caused when serious.Lift the conventional scheme of permanent magnet synchronous motor for compressor speed adjustable range
It is utilized in and negative direct-axis current is injected in machine winding, degaussing is carried out to magnetic field of permanent magnet, to reduce permanent magnet flux linkage, reaches drop
Low back-emf, the motor improved under weak magnetic region are contributed.
Generally, for DC frequency-changeable compressor motor, it should first ensure that low frequency efficiency meets on the premise of requiring,
It can just consider to take into account high frequency efficiency.And after motor enters weak magnetic area, high frequency efficiency is relatively low.So in order to which balance motor is in height
Efficiency under frequency, it is necessary to trade off design, the electric efficiency under low-and high-frequency be present can not reach the problem of optimal.
Utility model content
Main purpose of the present utility model is to provide a kind of motor, it is intended to which height can not be taken into account by solving motor of the prior art
The defects of low frequency efficiency.
To achieve the above object, the utility model proposes motor, 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；
Coil group, the coil group are wound in the stator tooth and including multiple coil groups, each coil groups
With at least two joints；
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；
Wherein, the quantity of the stator groove gap is Z, and the half of the rotor number of poles is P, when the line of the coil group
When circle is across only a stator tooth, Z/P=3 or 2.4；When the coil of the coil group is across at least three stator tooths,
Z/P=6 or 12.
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 the coil group includes n lead-in line joint altogether and n outlet connects
Head, a motor down-lead with being connected the n lead-in line joints in two plug connectors connect, and another is individual be connected n
The motor down-lead connection of the outlet joint.
Preferably, total radical of the motor down-lead is the six roots of sensation, and the quantity of the coil group is three.
Preferably, for the coil of the coil group across only a stator tooth, the quantity of the stator groove gap is 6 or 9
Individual, the half of the rotor number of poles is respectively accordingly 2 or 3.
Preferably, the coil of the coil group is across only a stator tooth, and the quantity of the stator groove gap is 12, institute
The half for stating rotor number of poles is 4 or 5.
Preferably, for the coil of the coil group across three stator tooths, the quantity of the stator groove gap is 18, described
The half of rotor number of poles is 3；Or the coil of the coil group is across five stator tooths, the quantity of the stator groove gap
24, the half of the rotor number of poles is 2.
Preferably, the rated speed of the motor is more than or equal to 6000 revs/min.
Preferably, the maximum (top) speed of the motor 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 motor 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 motor includes stator core, coil group and more motor down-leads, should
Motor down-lead is used to connect circuit for controlling motor and coil group, and every motor down-lead and a joint of a coil group connect
Connect, can effectively expand the running speed scope of motor, and lifting motor weak magnetic ability simultaneously, significantly reduce copper cash in high frequency
Current 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,
The advantages of high-speed small-size and high electric efficiency.Meanwhile sets of stator coils parameter can change, and then in the case where taking into account low-and high-frequency
While efficiency, 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 motor of the embodiment of the utility model one；
Fig. 2 is the structural representation of the motor of another embodiment of the utility model；
Fig. 3 is the structural representation of the motor of the another embodiment of the utility model；
Fig. 4 is the structural representation of the motor of the utility model another embodiment；
Fig. 5 is the structural representation of the stationary part of the embodiment of the utility model one；
Fig. 6 is the structural representation of the compressor of the utility model embodiment.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Stator | 101 | Stator core |
| 20 | Rotor | 101a | Stator groove gap |
| 30 | Housing | 101b | Stator tooth |
| 31 | Accommodating chamber | 102 | Coil group |
| 40 | Bent axle | 102a | Joint |
| 50 | Cylinder | 103 | Motor down-lead |
| 60 | Piston | 104 | Plug connector |
| 70 | Base bearing | 80 | Supplementary bearing |
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 motor, more specifically magneto.
Fig. 1 to Fig. 4, the motor that the utility model embodiment provides, including stator 10 and rotor 20, stator 10 is refer to wrap
Stator core 101 and coil group 102 are included, wherein, stator core 101 has multiple along its circumferentially spaced stator tooth
Stator groove gap 101a is formed between 101b, two neighboring stator tooth 101b；Coil group 102 is wound in stator tooth 101b, often
Individual coil group 102 has at least two joint 102a.
It should be clear that each coil group 102 has multiple coils, according to the connected mode of each coil, each coil group 102
Can have two joint 102a, or more than two joint 102a situation (such as four joint 102a).
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, one of every motor down-lead 103 and a coil group 102 connects
Head 102a connections.
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 feelings of motor
Condition switches over to the mode of connection of multiple coil groups 102 in motor.Such as：Circuit for controlling motor is according to the different operating of motor
Frequency, control coil group 102 switch between the Y types mode of connection and delta connection mode, so as to take into account motor in height
Work efficiency under frequency and low frequency.
The quantity that the utility model also further defines stator groove gap 101a is Z, and the half for defining rotor number of poles is P
It is individual, when the coil of coil group 102 is across only a stator tooth 101b, Z/P=3 or 2.4；When coil group 102 coil across
When crossing at least three stator tooth 101b, Z/P=6 or 12.
As Z/P=3 or 2.4, the slot number under average each pair rotor pole is greatly reduced, it is possible to reduce occupied by slot insulation
Space, be advantageous to the raising of copper factor, reduce coil group resistance, and then improve motor performance, reduce motor temperature rise；Can be with
Using fewer number of parts number, simplify wire insertion technology and wiring, help to reduce cost.Each coil is wound on a salient stator
On tooth, coil girth and winding overhang extension elongation are shortened, lowers copper consumption；Each end turn is not overlapping, it is not necessary to sets
Phase insulation.In addition, this Z and P cooperations, also help motor miniaturization, lightweight, save production hour, realize production certainly
Dynamicization.As Z/P=6 or 12, stator side armature field has the more preferable field waveform of sine degree, the amplitude in each harmonic magnetic field
It is smaller, be advantageous to reduce armature iron loss, lifting motor efficiency, improve motor vibration noise.
In the embodiment shown in Fig. 1-Fig. 3, the coil of coil group 102 is across only a stator tooth 101b, i.e. coil
Stator tooth 101b distance is spaced between the end of incoming cables of group 102 and leading-out terminal.In the embodiment shown in fig. 1, stator
Groove gap 101a quantity Z is 6, and rotor number of poles is 4, and the half P of rotor number of poles is 2；In the embodiment shown in Figure 2,
Stator groove gap 101a quantity Z is 9, and rotor number of poles is 6, and the half P of rotor number of poles is 3；In the embodiment shown in Fig. 3
In, stator groove gap 101a quantity Z is 12, and rotor number of poles is 8, and the half P of rotor number of poles is 4.Further, it is also possible to make
The quantity Z for obtaining stator groove gap 101a is 12, and rotor number of poles is 10, and the half P of rotor number of poles is 5, now Z/P=2.4.
In the embodiment shown in fig. 4, the coil of coil group 102 is across three stator tooth 101b, i.e. coil group 102
Stator tooth 101b distance is spaced between end of incoming cables and leading-out terminal, it is then preferred that stator groove gap 101a quantity Z is 18
Individual, rotor number of poles is 6, and the half P of rotor number of poles is 3.Further, it is also possible to so that the coil of coil group 102 is across five
Stator tooth 101b, stator groove gap 101a quantity Z are 24, and rotor number of poles is 4, and the half P of rotor number of poles is 2, this
When Z/P=12.
Previous embodiment can effectively expand the running speed scope of motor, and lifting motor weak magnetic ability simultaneously, in height
Copper cash current density is significantly reduced under frequency, reduces motor feels hot.Rated motor rotating speed and maximum (top) speed of the present utility model are high,
With speed-regulating range width, the advantages of high-speed small-size and high electric efficiency.Meanwhile sets of stator coils parameter can be by controlling electricity
Road switches over, and then while efficiency under taking into account low-and high-frequency, meets 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.
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 Figure 1-Figure 4, can also use structure as shown in Figure 5.
In the embodiment shown in Fig. 1-Fig. 4, the quantity of plug connector 104 is two, and coil group 102 includes n inlet wire altogether
Joint and n outlet joint, one in two plug connectors 104 connects with being connected the motor down-lead 103 of n lead-in line joint, separately
One connects with being connected the motor down-lead 103 of n outlet joint.The plug connector 104 is junction box structure, with more motor down-leads
103 connection is more convenient.
In the embodiment shown in fig. 5, 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, is divided into one group with what the lead-in line joint 102a of coil group 102 was connected, with going out for coil group 102
Wire terminal 102a connections are divided into another group.
The quantity of coil group 102 depending on the model of motor, such as：Total radical that motor down-lead 103 can be made is six
Root, the quantity of coil group 102 is three, and each coil group 102 has two joint 102a, and two joint 102a are respectively inlet wire
Joint 102a and outlet joint 102a, so that circuit for controlling motor is more preferable to the control effect of motor.
In the present embodiment, when the specified running speed of motor is more than or equal to 6000 revs/min, or, when motor
When maximum running speed is more than or equal to 9000 revs/min, using one of every motor down-lead 103 and a coil group 102
Joint 102a connection schemes are 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 motor of cylinder 50 and bent axle 40 in housing 30, the one end of bent axle 40 and previous embodiment connects, and bent axle 40 is another
End is connected with the piston 60 in cylinder 50.Rotated by rotor 20 with dynamic crankshaft 40, and then can the band telescopic moving of piston 60.Should
Compressor also includes base bearing 70 and supplementary bearing 80, and base bearing 70 and supplementary bearing 80 are arranged from the top and bottom of bent axle 40 respectively
On bent axle 40, and it 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 motor, 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；
Coil group, the coil group are wound in the stator tooth and had including multiple coil groups, each coil group
At least two joints；
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；
Wherein, the quantity of the stator groove gap is Z, and the half of the rotor number of poles is P, when the coil group coil only
During across a stator tooth, Z/P=3 or 2.4；When the coil of the coil group is across at least three stator tooths, Z/P=
6 or 12.
2. motor according to claim 1, it is characterised in that the stator also includes plug connector, and the motor down-lead leads to
Cross the plug connector and circuit for controlling motor grafting.
3. motor according to claim 2, it is characterised in that the quantity of the plug connector is two, and the coil group is total to
Including n lead-in line joint and n outlet joint, an electricity with being connected the n lead-in line joints in two plug connectors
Power traction line is connected, and another is connected with being connected the motor down-lead of the n outlet joints.
4. motor according to claim 1, it is characterised in that total radical of the motor down-lead is the six roots of sensation, the coil
The quantity of group is three.
5. according to the motor described in claim any one of 1-4, it is characterised in that the coil of the coil group is fixed across only one
Sub- double wedge, the quantity of the stator groove gap is 6 or 9, and the half of the rotor number of poles is respectively accordingly 2 or 3.
6. according to the motor described in claim any one of 1-4, it is characterised in that the coil of the coil group is fixed across only one
Sub- double wedge, the quantity of the stator groove gap is 12, and the half of the rotor number of poles is 4 or 5.
7. according to the motor described in claim any one of 1-4, it is characterised in that the coil of the coil group is across three stators
Double wedge, the quantity of the stator groove gap is 18, and the half of the rotor number of poles is 3；Or the coil of the coil group across
Five stator tooths are crossed, the quantity of the stator groove gap is 24, and the half of the rotor number of poles is 2.
8. according to the motor described in claim any one of 1-4, it is characterised in that the rated speed of the motor is more than or waited
In 6000 revs/min.
9. according to the motor described in claim any one of 1-4, it is characterised in that the maximum (top) speed of the motor is more than or waited
In 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 motor described in claim any one of 1-9, the bent axle other end is connected with the piston in the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113721.9U CN207082917U (en) | 2017-08-31 | 2017-08-31 | A kind of motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113721.9U CN207082917U (en) | 2017-08-31 | 2017-08-31 | A kind of motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082917U true CN207082917U (en) | 2018-03-09 |
Family
ID=61421395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721113721.9U Active CN207082917U (en) | 2017-08-31 | 2017-08-31 | A kind of motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425625A (en) * | 2017-08-31 | 2017-12-01 | 广东美芝制冷设备有限公司 | A kind of motor and compressor |
-
2017
- 2017-08-31 CN CN201721113721.9U patent/CN207082917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425625A (en) * | 2017-08-31 | 2017-12-01 | 广东美芝制冷设备有限公司 | A kind of motor and compressor |
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