Ventilated machine and heat dissipating method thereofTechnical field
The present invention relates to technical field of motors, particularly relate to a kind of ventilated machine and heat dissipating method thereof.
Background technology
Current most of motor is substantially and is assemblied in the shell of support by the stator core of regular shape, then arranges laterally or longitudinally muscle sheet on shell, meets the wind-cooling heat dissipating requirement of motor with this.But, the overall dimensions of this class formation is bigger than normal, and stator core and the shell of support can not complete seamless coordinate so that radiating effect is limited.If being that requirement installation site is compact, and the applied environment that power density is bigger, the application of this type of motor is then very restricted.
Summary of the invention
The invention reside in a kind of ventilated machine of offer and heat dissipating method thereof, for solving larger in size, the problem that radiating effect is limited of motor in prior art.
In order to solve above-mentioned technical problem, the present invention proposes a kind of ventilated machine, and including a stator core, described stator core is laminated by the punching sheet unit segmentation that at least two overall dimensions is different and formed, described stator core directly and air contact, to improve the radiating effect of ventilated machine.
Further, described stator core includes the first punching sheet unit and the second punching sheet unit that set gradually, and the external diameter of described first punching sheet unit is less than the external diameter of described second punching sheet unit.
Further, described stator core includes the first punching sheet unit, the second punching sheet unit and the 3rd punching sheet unit that set gradually, the largest outside diameter of described second punching sheet unit, and the external diameter of described first punching sheet unit is not less than the external diameter of described 3rd punching sheet unit.
Further, described stator core includes the first punching sheet unit, the second punching sheet unit and the 3rd punching sheet unit that set gradually, the largest outside diameter of described second punching sheet unit, and the external diameter of described first punching sheet unit is less than the external diameter of described 3rd punching sheet unit.
Further, described stator core includes the first punching sheet unit, the second punching sheet unit, the 3rd punching sheet unit and the 4th punching sheet unit, and these four punching sheet units laminate according to small one and large one sequential segment of external diameter.
Further, the external diameter of described first punching sheet unit is equal to the external diameter of described 3rd punching sheet unit；Described second punching sheet unit is arranged between described first punching sheet unit and the 3rd punching sheet unit, and its external diameter is more than the external diameter of described first punching sheet unit；Described 4th punching sheet unit is disposed adjacent with described 3rd punching sheet unit, and its largest outside diameter.
Further, described stator core includes the first punching sheet unit, the second punching sheet unit, the 3rd punching sheet unit and the 4th punching sheet unit, and the sequential segment that these four punching sheet units are gradually increased according to external diameter laminates.
Further, each punching sheet unit is laminated by the stator punching segmentation that multiple overall dimensions are identical and is formed.
Further, described stator punching is stalloy.
The present invention also proposes the heat dissipating method of a kind of ventilated machine, comprising: form the punching sheet unit that at least two overall dimensions is different；Punching sheet units different for described at least two overall dimensions is carried out segmentation laminate to form stator core；And make described stator core directly and air contact, to improve the radiating effect of ventilated machine.
Compared with prior art, the ventilated machine of the present invention and heat dissipating method thereof, have the advantages that the heat within ventilated machine is transferred directly to the outside of ventilated machine by the present invention by stator core in irregular shape, not only solve the problem that motor work heat radiation is limited preferably, and its overall dimensions is compacter, stock utilization is higher, and application scenarios is more extensive.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stator core of the ventilated machine of one embodiment of the invention.
Wherein, description of reference numerals is as follows:
10, stator core；1, the first punching sheet unit；2, the second punching sheet unit；3, the 3rd punching sheet unit；4, the 4th punching sheet unit.
Detailed description of the invention
Below with reference to accompanying drawing, the present invention is given elaboration further.
A kind of ventilated machine provided by the invention, it includes a stator core, wherein, stator core is laminated by the punching sheet unit segmentation that at least two overall dimensions is different and is formed, make the periphery concave-convex surface of stator core, and direct and air contact, add the area of dissipation of ventilated machine, to improve the radiating effect of ventilated machine.Wherein, punching sheet unit is again laminated by the stator punching segmentation that multiple overall dimensions are identical to be formed, and stator punching is stalloy.By substituting this stator core in irregular shape of the laterally or longitudinally muscle sheet in conventional motors profile, by the heat within ventilated machine (such as, the heat produced during the work of motor winding, stator core) it is transferred directly to the outside of ventilated machine, namely ventilated machine provided by the invention is bare structure, thus reaching to improve the purpose of the radiating effect of ventilated machine, its radiating effect is compared conventional motors and is improved 3% ~ 5%.
Refer to Fig. 1, in one embodiment, stator core 10 includes the first punching sheet unit the 1, second punching sheet unit the 2, the 3rd punching sheet unit 3 and the 4th punching sheet unit 4, and these four punching sheet units laminate according to small one and large one sequential segment of external diameter, make the periphery concave-convex surface of stator core 10.Wherein, the external diameter of the first punching sheet unit 1 is equal to the external diameter of the 3rd punching sheet unit 3；Second punching sheet unit 2 is arranged between the first punching sheet unit 1 and the 3rd punching sheet unit 3, and its external diameter is more than the external diameter of the first punching sheet unit 1；4th punching sheet unit 4 is disposed adjacent with the 3rd punching sheet unit 3, and its largest outside diameter.Certainly, in another embodiment, stator core 10 can also be four the punching sheet unit segmentations being gradually increased by external diameter laminate and formed irregularly shaped.
The one of value is mentioned that, the present invention utilizes on stator core the external diameter between adjacent punching sheet unit different, namely difference in areas each other uses as radiator portion, as long as this stator core in irregular shape is enough to the laterally or longitudinally muscle sheet being equal in conventional motors profile, and then increase the area of dissipation of motor, can reach to improve the purpose of radiating effect, so, the present invention is not limited with the number and overall dimensions forming the punching sheet unit of stator core.
Such as, stator core 10 can include the first punching sheet unit 1 and the second punching sheet unit 2 that two overall dimensions setting gradually are different, and the external diameter of the first punching sheet unit 1 is less than the external diameter of the second punching sheet unit 2.
Such as, stator core 10 can include the first punching sheet unit the 1, second punching sheet unit 2 and the 3rd punching sheet unit 3 that three overall dimensions setting gradually are different, the largest outside diameter of the second punching sheet unit 2, the external diameter of the first punching sheet unit 1 is not less than the external diameter of the 3rd punching sheet unit 3.Or, the largest outside diameter of the second punching sheet unit 2, the external diameter of the first punching sheet unit 1 is less than the external diameter of the 3rd punching sheet unit 3.
The heat dissipating method of a kind of ventilated machine that the present invention also provides for, comprising: form the punching sheet unit that at least two overall dimensions is different；Punching sheet units different for this at least two overall dimensions is carried out segmentation laminate to form stator core；And make this stator core directly and air contact, to improve the radiating effect of ventilated machine.By the stator core in irregular shape formed in the heat dissipating method of this ventilated machine, substitute the laterally or longitudinally muscle sheet in conventional motors profile, and by the heat within ventilated machine (such as, the heat produced during the work of motor winding, stator core) it is transferred directly to the outside of ventilated machine, namely ventilated machine provided by the invention is bare structure, thus reaching to improve the purpose of the radiating effect of ventilated machine, its radiating effect is compared conventional motors and is improved 3% ~ 5%.
In sum, a kind of ventilated machine of the present invention and heat dissipating method thereof, the punching sheet unit of at least two difference overall dimensions is laminated to form the stator core of periphery concave-convex surface by segmentation, namely this stator core in irregular shape is equal to the laterally or longitudinally muscle sheet in conventional motors profile, to increase the area of dissipation of ventilated machine, and then the heat within ventilated machine is transferred directly to the outside of ventilated machine, not only make its radiating effect compare conventional motors and improve 3% ~ 5%, solve the problem that motor work heat radiation is limited preferably, and its overall dimensions is compacter, stock utilization is higher, application scenarios is more extensive, and by currently advanced motor protective treatment, the degree of protection making motor can meet the corresponding requirements of national standard.
Foregoing; it is only presently preferred embodiments of the present invention; it is not intended to limit embodiment of the present invention; those of ordinary skill in the art are according to the central scope of the present invention and spirit; corresponding flexible or amendment can be carried out very easily, therefore protection scope of the present invention should be as the criterion with the protection domain required by claims.