CN208424091U - A kind of electric machine structure and compressor - Google Patents
A kind of electric machine structure and compressor Download PDFInfo
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- CN208424091U CN208424091U CN201821058546.2U CN201821058546U CN208424091U CN 208424091 U CN208424091 U CN 208424091U CN 201821058546 U CN201821058546 U CN 201821058546U CN 208424091 U CN208424091 U CN 208424091U
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Abstract
The utility model provides a kind of electric machine structure and compressor, the electric machine structure includes rotor core (1), stator core (2) and crankshaft (3), and the rotor core (1) is sheathed on the periphery of the crankshaft (3), the stator core (2) is sheathed on the peripheral side of the rotor core (1), the axis direction for defining the crankshaft is axial direction, and the length of the rotor core (1) in axial direction is longer than the length of the stator core (1) in axial direction.By the utility model the axial length of rotor core is increased, it being capable of effectively Extending Rotor iron core and crankshaft length of fit, reach the reliability of rotor and crankshaft cooperation, the coordinate force for guaranteeing rotor and crankshaft, can also be greatly lowered motor height on the basis of ensuring motor installation reliability.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of electric machine structure and compressor.
Background technique
Freezer compressor generally uses reciprocating crankshaft-link mechanism currently on the market, including cylinder block, connecting rod, crankshaft,
Piston pin, piston, valve group, motor stator, rotor, support spring and shell.Piston is mounted on the cylinder-bore of cylinder block
In, motor stator and cylinder block are fixedly linked, and rotor and crankshaft are fixedly linked.When compressor is run, rotor is driven
Crankshaft rotates, reciprocating by connecting rod band piston.Wherein motor stator and cylinder block are fixedly mounted, and motor turns
Son and crankshaft are fixedly mounted.Cylinder block is equipped with the bearing of installation crankshaft and the stabilizer blade of installation motor stator.To ensure compressor
Stable operation, bearing are designed longer as far as possible.And for the material cost of less compression machine, reduce complete machine height, stabilizer blade
Length as be designed shorter as possible.
Existing refrigeration compressor motor mounting structure highly turns to ensure that rotor is not interfered with bearing for the motor of H
The counterbore that one depth of design is Hl is needed on son, then the installation length of fit of rotor and crankshaft is H2, general to require cooperation
Length H2 is in lOmm or more.It just can guarantee that rotor and crankshaft coordinate force are enough, prevent rotor from falling off during operation.
But refrigerator space is occupied in order to reduce compressor, refrigeration compressor is gradually sent out to miniaturization and efficient direction
Exhibition.The complete machine height for reducing compressor, need to apply the lesser thin electric motor of height H value.Refrigeration compressor motor installation knot as a result,
Structure bring the disadvantage is that: when the height H of rotor decline, the installation length of fit of rotor and crankshaft be H2 also therewith
Decline, and when length of fit H2 is down to lOmm or less, the problems such as just will appear reliability decrease.
Occur under reliability since compressor in the prior art is shorter there are the length of fit of rotor and crankshaft
The technical problems such as drop, therefore the utility model researching and designing goes out a kind of electric machine structure and compressor.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome compressor in the prior art, there are rotors
It is shorter with the length of fit of crankshaft and the defect of reliability decrease occur, to provide a kind of electric machine structure and compressor.
The utility model provides a kind of electric machine structure comprising rotor core, stator core and crankshaft, and the rotor iron
Core retainer plate is set to the periphery of the crankshaft, and the stator core is sheathed on the peripheral side of the rotor core, defines the crankshaft
Axis direction is axial direction, and the length of the rotor core in axial direction is than the stator core in axial direction long
Degree length.
Preferably,
In the side of the axial direction, the axial end face of the rotor core is the first rotor end face, the stator iron
The axial end face of core is the first stator faces；The other side in the axial direction, the axial end face of the rotor core are second turn
Sub- end face, the axial end face of the stator core is the second stator faces, and is had: the first rotor end face protrudes from described the
One stator faces, and/or, second rotor end-face protrudes from second stator faces.
Preferably,
The electric machine structure is arranged as the axial direction along the vertical direction, and the first rotor end face is the rotor iron
The upper surface of core, first stator faces are the upper surface of the stator core, and second rotor end-face is the rotor
The lower end surface of iron core, second stator faces are the lower end surface of the stator core.
Preferably,
It further include cylinder block, the cylinder block is inserted into the rotor along the axial direction from the first rotor end face
Position between iron core and the crankshaft, and the cylinder block is inserted into the axial length of the part in the rotor core less than institute
State the axial length of rotor core.
Preferably,
It further include magnet steel, the rotor core is axially inside provided with the magnet steel hole, described that can accommodate the magnet steel
Magnet steel can be inserted in the magnet steel hole；And the magnet steel is greater than or equal to the stator iron along the length of the axial direction
Core along the axial direction length, and/or, the magnet steel along the axial direction length be less than or equal to the rotor iron
Core is along the axial length.
Preferably,
When the axial end face in the side of the axial direction, the rotor core is the first rotor end face, the stator
The axial end face of iron core is the first stator faces；The other side in the axial direction, the axial end face of the rotor core are second
Rotor end-face, the axial end face of the stator core are the second stator faces；And the electric machine structure is arranged as the axial direction side
To along the vertical direction, the first rotor end face is the upper surface of the rotor core, and first stator faces are described fixed
The upper surface of sub- iron core, second rotor end-face are the lower end surface of the rotor core, and second stator faces are described
When the lower end surface of stator core:
The first rotor end face is higher by height D1 than first stator faces, the upper surface of the magnet steel and described the
The height of one rotor end-face is identical；And/or second rotor end-face is D2 than the height that second stator faces are protruded,
The lower end surface of the magnet steel is higher than second rotor end-face and the lower end surface of the magnet steel is lower than second stator faces.
Preferably,
The D1 < 3mm；And/or the D2 < 8mm；And/or the lower end surface of the magnet steel and second stator terminal
Difference in height D3 < 3mm between face.
Preferably,
The magnet steel is multiple, and is distributed along the circumferential direction of the rotor core.
Preferably,
When in the side of the axial direction, the axial end face of the rotor core is the first rotor end face, when in axial direction
The axial end face of the other side in direction, the rotor core is the second rotor end-face, and the electric machine structure is arranged as the axis
Along the vertical direction to direction, the first rotor end face is the upper surface of the rotor core, and second rotor end-face is institute
When stating the lower end surface of rotor core:
It is additionally provided with magnet steel baffle in the upper end of the first rotor end face and/or second rotor end-face lower end, and
It is additionally provided with protrusion in the upper surface of magnet steel baffle position corresponding with the magnet steel, the protrusion can extend into described
Axially position is carried out in magnet steel hole, to the magnet steel.
Preferably,
The protrusion is by the structure that is stamped and formed out, including the three stage structure continuously to connect, or include disconnection and
The two-part structure not connected, or including one-part form structure.
Preferably,
The axially projecting height in magnet steel baffle upper surface of the protrusion is H4, and the magnet steel is along the axial direction
Length be less than or equal to the rotor core along the axial length, the magnet steel and the rotor core in the axial direction
Difference in height is H3, and the H4 > H3.
Preferably,
The axial width of the magnet steel baffle is 1.0-1.5mm, and/or, the H4 < 8mm, and/or, H4-H3 > 0.1-
0.2mm。
Preferably,
The material of the rotor core is silicon steel sheet, the rotor core direct punching by way of punching press goes out；With/
Or, the material of the magnet steel baffle is un-conducted magnetic material, the magnet steel baffle is gone out by the direct punching of stamping die.
Preferably,
The rotor core and the crankshaft pass through interference compression fit.
The utility model also provides a kind of compressor comprising preceding described in any item electric machine structures.
A kind of electric machine structure and compressor provided by the utility model have the following beneficial effects:
1. the utility model by by rotor core length in axial direction in axial direction than the stator core
Length is long so that the axial length of rotor core increases, can effectively Extending Rotor iron core and crankshaft length of fit, reach rotor
With the reliability of crankshaft cooperation, guarantee the coordinate force of rotor and crankshaft, it can be on the basis for ensuring motor installation reliability
On motor height can also be greatly lowered；
2. magnet steel is greater than or equal to the stator core along the axis along the length of the axial direction by the utility model
To the length in direction, the length of fit between rotor magnetic steel and stator can be increased so that the length be as far as possible stator most
Majority of its axial length effectively increases motor output torque in effective stator stack relative superiority or inferiority, promotes motor to a certain extent
Can, electric efficiency is improved to greatest extent；
3. the utility model, can be by magnet steel baffle to magnet steel axial direction by the magnet steel baffle of setting motor rotor magnetic steel
Increase pretightning force, effectively fixed magnet steel axial position reduces the axial float of magnet steel in motor operation course, moreover it is possible to low utilizing
While folding high motor, allow magnet steel axial length smaller than rotor core axial length, the dosage of magnet steel can be reduced；
4. the utility model when motor rotor core punching with mold by directly being gone out, easy to process, increasing can be reduced
Add installation bushing cooperation, rotor core preferably guarantees with crankshaft concentricity, and reduces the processing of installation bushing, staking process；
The magnet steel baffle punching machine simultaneous manufacturing of rotor, or with plastics single injection-molded, raised knot can be effectively formed
Structure, it is easy to process.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the compressor with electric machine structure of the utility model；
Fig. 2 is the schematic cross-sectional view of the first embodiment with electric machine structure of the utility model；
Fig. 3 is the schematic cross-sectional view of second of embodiment with electric machine structure of the utility model；
Fig. 4 a is the overlooking structure diagram of the first embodiment of the magnet steel baffle in Fig. 1-3；
Fig. 4 b is the schematic cross-section in the direction A-A in Fig. 4 a；
Fig. 5 a is the overlooking structure diagram of second of embodiment of the magnet steel baffle in Fig. 1-3；
Fig. 5 b is the schematic cross-section in the direction B-B in Fig. 5 a；
Fig. 6 a is the overlooking structure diagram of second of embodiment of the magnet steel baffle in Fig. 1-3；
Fig. 6 b is the schematic cross-section in the direction C-C in Fig. 6 a.
Appended drawing reference indicates in figure are as follows:
1, rotor core；2, stator core；3, crankshaft；4, cylinder block；5, magnet steel；6, magnet steel baffle；61, raised；7, even
Bar；8, piston pin；9, piston；10, valve module；11, bearing；12, stabilizer blade；13, spring is supported；14, shell；15, rivet.
Specific embodiment
As shown in Fig. 1-6b, the utility model provides a kind of electric machine structure comprising rotor core 1, stator core 2 and song
Axis 3, and the rotor core 1 is sheathed on the periphery of the crankshaft 3, the stator core 2 is sheathed on the outer of the rotor core 1
Side, the axis direction for defining the crankshaft is axial direction, and the length of the rotor core 1 in axial direction is more fixed than described
The length of sub- iron core 2 in axial direction is long.
The utility model by by rotor core length in axial direction than the stator core in axial direction long
Degree length so that the axial length of rotor core increases, can effectively Extending Rotor iron core and crankshaft length of fit, reach rotor and
The reliability of crankshaft cooperation, guarantees the coordinate force of rotor and crankshaft, can be on the basis of ensuring motor installation reliability
Motor height can also be greatly lowered.
Preferably,
In the side of the axial direction, the axial end face of the rotor core 1 is the first rotor end face, the stator iron
The axial end face of core 2 is the first stator faces；The other side in the axial direction, the axial end face of the rotor core 1 are second
The axial end face of rotor end-face, the stator core 2 is the second stator faces, and is had: the first rotor end face protrudes from institute
The first stator faces are stated, and/or, second rotor end-face protrudes from second stator faces.
This is the rotor core of the utility model and the preferred constructive form of stator core, and the first rotor end face is protruded from
First stator faces enable to side rotor in the axial direction to exceed the height of stator, and increase the side rotor and crankshaft
Between length of fit, improve the coordinate force between rotor and crankshaft, and the second rotor end-face is protruded from into the second stator terminal
Face enables to other side rotor in the axial direction to exceed the height of stator, and increases matching between the side rotor and crankshaft
Length is closed, the coordinate force between rotor and crankshaft is improved.
Preferably,
The electric machine structure is arranged as the axial direction along the vertical direction, and the first rotor end face is the rotor iron
The upper surface of core 1, first stator faces are the upper surface of the stator core 2, and second rotor end-face is described turns
The lower end surface of sub- iron core 1, second stator faces are the lower end surface of the stator core 2.This is the motor of the utility model
The further preferred structure type of structure, i.e., arrange electric machine structure vertically, so that the first rotor end face and the first stator faces
The respectively upper surface of rotor and stator, the second rotor end-face and the second stator faces are respectively the lower end surface of rotor and stator,
The length of rotor in the vertical direction is enabled to be longer than stator in this way, to improve rotor between vertical direction and crankshaft
Length of fit improves coordinate force, motor height can also be greatly lowered on the basis of ensuring motor installation reliability.
Preferably,
It further include cylinder block 4, the cylinder block 4 turns from the first rotor end face along axial direction insertion is described
Position between sub- iron core 1 and the crankshaft 3, and the cylinder block 4 is inserted into the axial length of the part in the rotor core 1
Less than the axial length of the rotor core 1.Preferably it is downwardly into from the upper surface of the rotor.I.e. cylinder block is from rotor
End face is downwardly between rotor and crankshaft, and bearing is set between cylinder block and crankshaft, to support to crankshaft, passes through gas
Cylinder seat and the bearing being fixed on cylinder block carry out supporting role to crankshaft, but will not fully extended rotor core lower end
Face, to be unlikely to influence the coordinate force between crankshaft and rotor.
Preferably,
It further include magnet steel 5 (magnet steel is preferably permanent magnet, i.e., motor is magneto), along axis inside the rotor core 1
To be provided with the magnet steel hole that can accommodate the magnet steel 5, the magnet steel 5 can be inserted in the magnet steel hole；And the magnet steel 5
It is greater than or equal to the stator core 2 along the length of the axial direction along the length of the axial direction, and/or, the magnetic
Steel 5 is less than or equal to the rotor core 1 along the axial length along the length of the axial direction.
By magnet steel along the axial direction length be greater than or equal to the stator core along the axial direction length,
The length of fit between rotor magnetic steel and stator can be increased, so that the length is the greatest axial length of stator as far as possible,
Effective stator stack relative superiority or inferiority, effectively increases motor output torque, promotes motor performance to a certain extent, mention to greatest extent
High electric efficiency.Magnet steel is set smaller than along the length of the axial direction or equal to the rotor core along described axial
Length, can on the basis of guaranteeing that magnet steel and stator length of fit are as long as possible, that is, on the basis of guaranteeing normal effectively work,
The axial length for reducing magnet steel as far as possible, reducing magnet steel dosage, (referring to attached drawing 2, this is the first embodiment party of this electric machine structure
The structure chart of formula, the i.e. axial length of magnet steel and the axial length of rotor core are equal；Referring to attached drawing 3, this is this electric machine structure
The first embodiment structure chart, i.e. the axial length of magnet steel is smaller than the axial length of rotor core).
Preferably,
When the axial end face in the side of the axial direction, the rotor core 1 is the first rotor end face, the stator
The axial end face of iron core 2 is the first stator faces；The other side in the axial direction, the axial end face of the rotor core 1 are the
Two rotor end-faces, the axial end face of the stator core 2 are the second stator faces；And the electric machine structure is arranged as the axial direction
Along the vertical direction, the first rotor end face is the upper surface of the rotor core 1, and first stator faces are described in direction
The upper surface of stator core 2, second rotor end-face are the lower end surface of the rotor core 1, and second stator faces are
When the lower end surface of the stator core 2:
The first rotor end face is higher by height D1 than first stator faces, the upper surface of the magnet steel 5 with it is described
The height of the first rotor end face is identical；And/or the height that second rotor end-face is protruded than second stator faces is
D2, the lower end surface of the magnet steel 5 is higher than second rotor end-face and the lower end surface of the magnet steel 5 is lower than second stator
End face.
This is the upper and lower end face of the rotor of the utility model, between the upper and lower end face of stator and the upper and lower end face of magnet steel
Further preferred positional relationship, the first rotor end face is higher than the first stator faces, and (i.e. rotor upper surface is higher than stator upper end
Face), the position for enabling to cylinder block to match with rotor core in this way moves up as far as possible, can extend lower section indirectly and turn
The axial length cooperated between sub- iron core and crankshaft improves coordinate force；This concordant with the upper surface of rotor of magnet steel upper surface is magnetic
The preferred embodiment of steel setting, can guarantee the complete cooperation axial length between magnet steel upper end and stator as much as possible, improve electricity
Machine performance；It sets the second rotor end-face to than the second stator faces protrusion height (i.e. sinking certain altitude D2), it can
The axial length that Extending Rotor iron core cooperates between crankshaft (especially in lower end) in the axial direction improves coordinate force, and magnetic
Steel lower end surface is higher than rotor lower end surface, is lower than stator lower end surface, i.e., so that magnet steel lower end surface is located under stator lower end surface and rotor
Between end face, the effective length for enabling to magnet steel and stator to cooperate is maximum, raising motor performance, while can also be effectively reduced
Magnet steel axial length (needs not extend to rotor equal length), reduces magnet steel dosage, reduces cost.
Preferably,
The D1 < 3mm；And/or the D2 < 8mm；And/or the lower end surface of the magnet steel 5 and second stator terminal
Difference in height D3 < 3mm between face.This is the preferred value for the height that the utility model rotor upper surface is higher by stator upper surface
Range, rotor lower end surface sinks to protruding the preferred value range of the height of stator lower end surface and magnet steel lower end surface sinks to protruding
The preferred value range of the height of stator lower end surface can axially engage length between effective Extending Rotor iron core and crankshaft
Simultaneously, moreover it is possible to which the length that axially engages for increasing magnet steel and stator improves motor performance, increases the fan-out capability of motor, Jin Erti
The efficiency of lifting motor, and reduce magnet steel dosage.
In order to utilize existing compressor inner space to greatest extent, while improving motor performance.Because of the bearing of cylinder block
11 length are certain, then height can be folded in the part rotor core counterbore H1 and increase, so that it may rotor core upper end is higher by stator core D1,
Upper end level difference D1 < 3mm, magnet steel are identical as rotor core height.
In the case where stacked stator core is high certain, compressor complete machine height is constant, and rotor core lower end is also than stator
Iron core the raised area, lower end difference in height D2 < 8mm.Lower end magnet steel is than stator the raised area, difference in height D3 < 3mm.
Preferably,
The magnet steel 5 is multiple, and is distributed along the circumferential direction of the rotor core 1.Preferably it is uniformly distributed circumferentially.
This is the preferred number and distribution form of the magnet steel of the utility model, can form magnetic force between many places and stator in the circumferential
Effect, thus circumferential uniform force application drive rotor to be rotated, and then drive crank rotation.
Preferably,
When in the side of the axial direction, the axial end face of the rotor core 1 is the first rotor end face, when in axial direction
The axial end face of the other side in direction, the rotor core 1 is the second rotor end-face, and the electric machine structure is arranged as the axis
Along the vertical direction to direction, the first rotor end face is the upper surface of the rotor core 1, and second rotor end-face is institute
When stating the lower end surface of rotor core 1:
It is additionally provided with magnet steel baffle 6 in the upper end of the first rotor end face and/or second rotor end-face lower end, and
Being additionally provided with protrusion 61, described raised 61 in the upper surface of the magnet steel baffle 6 position corresponding with the magnet steel 5 can stretch
Enter in the magnet steel hole, axially position is carried out to the magnet steel 5.
By the way that the magnet steel baffle of motor rotor magnetic steel is arranged, can by magnet steel baffle to the axially increased pretightning force of magnet steel,
Effectively fixed magnet steel axial position, reduce the axial float of magnet steel in motor operation course, moreover it is possible to fold high motor using low
Meanwhile allowing magnet steel axial length smaller than rotor core axial length, the dosage of magnet steel can be reduced.
Preferably,
Described raised 61 is by the structures that are stamped and formed out, and the three stage structure including continuously connecting (including successively connects
First segment, second segment and third section, the first embodiment of magnet steel baffle, referring to fig. 4 a-4b), or including disconnecting and
The two-part structure (second of embodiment of magnet steel baffle, referring to Fig. 5 a-5b) not connected, or including one-part form structure
(the third embodiment of magnet steel baffle, referring to Fig. 6 a-6b).Punching is needed according on rotor core outer diameter size and baffle
Sink to magnet steel fixed quantity, the punching form of baffle has 3 kinds as above, can play the role of positioning to magnet steel, preferably
With the non-magnetic metal material of stainless steel.When the place's number for needing punching to sink to fixing magnet steel on baffle is excessive, metal die is difficult
To realize, it may be considered that processed with plastic injection, i.e., available metal material punching can also be molded.
Preferably,
The described raised 61 axially projecting height in 6 upper surface of magnet steel baffle are H4 (i.e. baffle sink to height), and institute
It states magnet steel 5 and is less than or equal to the rotor core 1 along the axial length, the magnet steel 5 along the length of the axial direction
It is H3, and the H4 > H3 with the difference in height of the rotor core 1 in the axial direction.Such structure can effectively ensure that magnet steel is kept off
The height of protrusion protrusion on plate, which is greater than in magnet steel, sinks into invagination depth in rotor core, i.e., protrude into can in magnet steel hole for protrusion
Play the role of effectively contacting to magnet steel, carry out effective axially position and limit.
Rotor core material is silicon steel sheet, is directly gone out by high velocity ram machine, and barrier material is the non-magnetic materials such as stainless steel
Material, is gone out by the direct punching of stamping die.Weir Plate Thickness 1.0-1.5mm, baffle sinking height H4 < 8mm.Baffle sinks highly
H4 is greater than H3 height 0.1-0.2mm, axially there is certain pretightning force to magnet steel than rotor magnetic steel and iron core height difference H 3, H4.Finally
Rotor assembly is as shown in Figure 1.
Preferably,
The axial width of the magnet steel baffle 6 is 1.0-1.5mm, and/or, the H4 < 8mm, and/or, H4-H3 > 0.1-
0.2mm.This is the preferred of the difference of the utility model magnet steel baffle, raised protrusion height and protrusion height and magnet steel invagination depth
Numberical range can effectively ensure that and also guarantee to act on the effective position of magnet steel while magnet steel baffle arrangement.
Preferably,
The material of the rotor core 1 is silicon steel sheet, the direct punching by way of punching press of the rotor core 1 goes out；With/
Or, the material of the magnet steel baffle 6 is un-conducted magnetic material (preferably stainless steel etc.), the magnet steel baffle 6 passes through stamping die
Direct punching goes out.It is easy to process by directly being gone out with mold when motor rotor core punching, increase installation bushing can be reduced
Cooperation, rotor core preferably guarantee with crankshaft concentricity, and reduce the processing of installation bushing, staking process；The magnet steel of rotor
Baffle punching machine simultaneous manufacturing, or with plastics single injection-molded, bulge-structure, processing side can be effectively formed
Just.
Preferably,
The rotor core 1 passes through interference compression fit with the crankshaft 3.Rotor is directly matched with crankshaft interference compression
It closes, guarantees the height of H2, while rotor is guaranteed with crankshaft concentricity, improve the reliability during rotor operation.
The utility model also provides a kind of compressor comprising preceding described in any item electric machine structures.The utility model is logical
Cross the length of rotor core in axial direction is longer than the length of the stator core in axial direction so that the axis of rotor core
Increase to length, can effectively Extending Rotor iron core and crankshaft length of fit, reach the reliability of rotor and crankshaft cooperation, guarantee
Motor height can also be greatly lowered in the coordinate force of rotor and crankshaft on the basis of ensuring motor installation reliability
Degree；By magnet steel along the axial direction length be greater than or equal to the stator core along the length of the axial direction, can
Increase the length of fit between rotor magnetic steel and stator, so that the length is the greatest axial length of stator as far as possible, effective
Stator stack relative superiority or inferiority, effectively increase motor output torque, promote motor performance to a certain extent, to greatest extent improve electricity
Engine efficiency；By the way that the magnet steel baffle of motor rotor magnetic steel is arranged, can have by magnet steel baffle to the axially increased pretightning force of magnet steel
Fixed magnet steel axial position is imitated, reduces the axial float of magnet steel in motor operation course, moreover it is possible to fold the same of high motor using low
When, allow magnet steel axial length smaller than rotor core axial length, the dosage of magnet steel can be reduced；Pass through motor rotor core
It is directly gone out with mold when punching, it is easy to process, increase installation bushing cooperation can be reduced, rotor core and crankshaft concentricity are more
Good guarantee, and reduce the processing of installation bushing, staking process；The magnet steel baffle punching machine simultaneous manufacturing of rotor, or
With plastics single injection-molded, it can be effectively formed bulge-structure, it is easy to process.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.The above is only the preferred embodiment of the utility model, it is noted that for the art
For those of ordinary skill, without deviating from the technical principle of the utility model, several improvements and modifications can also be made,
These improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (15)
1. a kind of electric machine structure, it is characterised in that:
Including rotor core (1), stator core (2) and crankshaft (3), and the rotor core (1) is sheathed on the crankshaft (3)
Periphery, the stator core (2) are sheathed on the peripheral side of the rotor core (1), and the axis direction for defining the crankshaft is axis
To direction, and the length of the rotor core (1) in axial direction is longer than the length of the stator core (2) in axial direction.
2. electric machine structure according to claim 1, it is characterised in that:
In the side of the axial direction, the axial end face of the rotor core (1) is the first rotor end face, the stator core
(2) axial end face is the first stator faces；The other side in the axial direction, the axial end face of the rotor core (1) are the
The axial end face of two rotor end-faces, the stator core (2) is the second stator faces, and is had: the first rotor end face protrusion
In first stator faces, and/or, second rotor end-face protrudes from second stator faces.
3. electric machine structure according to claim 2, it is characterised in that:
The electric machine structure is arranged as the axial direction along the vertical direction, and the first rotor end face is the rotor core
(1) upper surface, first stator faces are the upper surface of the stator core (2), and second rotor end-face is described
The lower end surface of rotor core (1), second stator faces are the lower end surface of the stator core (2).
4. electric machine structure according to claim 3, it is characterised in that:
It further include cylinder block (4), the cylinder block (4) turns from the first rotor end face along axial direction insertion is described
Position between sub- iron core (1) and the crankshaft (3), and the cylinder block (4) is inserted into the part in the rotor core (1)
Axial length is less than the axial length of the rotor core (1).
5. electric machine structure described in any one of -4 according to claim 1, it is characterised in that:
Further include magnet steel (5), the rotor core (1) be axially inside provided with can accommodate the magnet steel (5) magnet steel hole,
The magnet steel (5) can be inserted in the magnet steel hole；And the magnet steel (5) is greater than or equal to along the length of the axial direction
The stator core (2) along the axial direction length, and/or, the magnet steel (5) is less than along the length of the axial direction
Or it is equal to the rotor core (1) along the axial length.
6. electric machine structure according to claim 5, it is characterised in that:
When the axial end face in the side of the axial direction, the rotor core (1) is the first rotor end face, the stator iron
The axial end face of core (2) is the first stator faces；The axial end face of the other side in the axial direction, the rotor core (1) is
Second rotor end-face, the axial end face of the stator core (2) are the second stator faces；And the electric machine structure be arranged as it is described
Along the vertical direction, the first rotor end face is the upper surface of the rotor core (1), first stator faces to axial direction
For the upper surface of the stator core (2), second rotor end-face is the lower end surface of the rotor core (1), described second
When stator faces are the lower end surface of the stator core (2):
The first rotor end face is higher by height D1 than first stator faces, the upper surface of the magnet steel (5) and described the
The height of one rotor end-face is identical；And/or second rotor end-face is D2 than the height that second stator faces are protruded,
The lower end surface of the magnet steel (5) is higher than second rotor end-face and the lower end surface of the magnet steel (5) is lower than second stator
End face.
7. electric machine structure according to claim 6, it is characterised in that:
The D1 < 3mm；And/or the D2 < 8mm；And/or the lower end surface of the magnet steel (5) and second stator faces
Between difference in height D3 < 3mm.
8. electric machine structure according to claim 5, it is characterised in that:
The magnet steel (5) is multiple, and is distributed along the circumferential direction of the rotor core (1).
9. electric machine structure according to claim 5, it is characterised in that:
When in the side of the axial direction, the axial end face of the rotor core (1) is the first rotor end face, when in axial side
To the other side, the axial end face of the rotor core (1) is the second rotor end-face, and the electric machine structure is arranged as the axis
Along the vertical direction to direction, the first rotor end face is the upper surface of the rotor core (1), and second rotor end-face is
When the lower end surface of the rotor core (1):
It is additionally provided with magnet steel baffle (6) in the upper end of the first rotor end face and/or second rotor end-face lower end, and
The upper surface position corresponding with the magnet steel (5) of the magnet steel baffle (6) is additionally provided with raised (61), the protrusion (61)
It can extend into the magnet steel hole, axially position carried out to the magnet steel (5).
10. electric machine structure according to claim 9, it is characterised in that:
The protrusion (61) be by the structure that is stamped and formed out, including the three stage structure continuously to connect, or include disconnection and
The two-part structure not connected, or including one-part form structure.
11. electric machine structure according to claim 9, it is characterised in that:
Described protrusion (61) axially projecting height in magnet steel baffle (6) upper surface is H4, and the magnet steel (5) is along the axis
It is less than or equal to the rotor core (1) along the axial length, the magnet steel (5) and the rotor iron to the length in direction
The difference in height of core (1) in the axial direction is H3, and the H4 > H3.
12. electric machine structure according to claim 11, it is characterised in that:
The axial width of the magnet steel baffle (6) is 1.0-1.5mm, and/or, the H4 < 8mm, and/or, H4-H3 > 0.1-
0.2mm。
13. electric machine structure according to claim 9, it is characterised in that:
The material of the rotor core (1) is silicon steel sheet, the rotor core (1) direct punching by way of punching press goes out；With/
Or, the material of the magnet steel baffle (6) is un-conducted magnetic material, the magnet steel baffle (6) is gone out by the direct punching of stamping die.
14. according to claim 1-4, electric machine structure described in any one of 6-13, it is characterised in that:
The rotor core (1) and the crankshaft (3) pass through interference compression fit.
15. a kind of compressor, it is characterised in that: including electric machine structure described in any one of claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058546.2U CN208424091U (en) | 2018-07-04 | 2018-07-04 | A kind of electric machine structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058546.2U CN208424091U (en) | 2018-07-04 | 2018-07-04 | A kind of electric machine structure and compressor |
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| Publication Number | Publication Date |
|---|---|
| CN208424091U true CN208424091U (en) | 2019-01-22 |
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ID=65125058
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808974A (en) * | 2018-07-04 | 2018-11-13 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric machine structure and compressor |
-
2018
- 2018-07-04 CN CN201821058546.2U patent/CN208424091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808974A (en) * | 2018-07-04 | 2018-11-13 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric machine structure and compressor |
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