Stator core cooling structure

Abstract

The application belongs to the technical field of core cooling, and particularly relates to a stator core cooling structure, which comprises a front cover, a main body, a rear cover, a through-flow type heat dissipation mechanism and a flow-changing type film removing mechanism. The front cover is arranged on one side of the main body, the rear cover is arranged on the side of the main body away from the front cover, and the main body is arranged in a penetrating mode. The through-flow type heat dissipation mechanism is arranged on the main body, the flow-changing type film removing mechanism is arranged on the main body on one side of the through-flow type heat dissipation mechanism, the through-flow type heat dissipation mechanism comprises a fixed guide assembly, and the fixed guide assembly is arranged on the side wall of the main body. The stator core cooling structure can automatically remove the impurities gathered on the surface of the rib plate, and ensure the heat dissipation efficiency of the stator core during operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of core cooling, and particularly relates to a stator core cooling structure. BACKGROUND

[0002] Stator core cooling refers to a process of dissipating heat generated by eddy current loss and hysteresis loss of a stator core under the action of an alternating magnetic field by using an active or passive method. Effective cooling measures are crucial for guaranteeing stable and reliable operation of a motor, improving power density, and prolonging the service life of the motor.

[0003] The existing stator core cooling structure has the following problems:

[0004] At present, the existing stator core cooling structure design has defects, and it cannot automatically remove impurities gradually accumulated on the surface of the rib plate. The impurities will form a heat insulation layer after accumulating on the surface layer of the rib plate, which significantly weakens the heat dissipation efficiency of the stator core during operation, thereby interfering with the normal operation of the motor.

[0005] Therefore, the existing stator core cooling structure cannot meet the heat dissipation requirements in actual use. SUMMARY

[0006] In view of the above problems, the present application provides a stator core cooling structure which can automatically remove impurities accumulated on the surface of the rib plate and ensure the heat dissipation efficiency of the stator core during operation.

[0007] The technical scheme adopted by the present application is as follows: The present application provides a stator core cooling structure, which comprises a front cover, a main body, a rear cover, a through-flow type heat dissipation mechanism and a flow-modification type film removal mechanism. The front cover is arranged on one side of the main body, and the rear cover is arranged on the side of the main body away from the front cover. The main body is arranged in a through manner. The through-flow type heat dissipation mechanism is arranged on the main body. The flow-modification type film removal mechanism is arranged on the main body on one side of the through-flow type heat dissipation mechanism. The through-flow type heat dissipation mechanism comprises a fixed guide assembly, which is arranged on the side wall of the main body. The flow-modification type film removal mechanism comprises a movable guide assembly, a film removal assembly, an air guide assembly and an air filter assembly. The movable guide assembly is arranged on the side wall of the main body. The film removal assembly is arranged on the side of the movable guide assembly close to the main body. The air guide assembly is arranged at one end of the main body. The air filter assembly is arranged at one end of the front cover close to the main body.

[0008] As a further preferred solution of the present case, the solid guide assembly comprises an annular groove and a fixing fin, the annular groove is arranged on the side wall of the main body, and a plurality of fixing fins are arranged on the inner wall of the annular groove; the air guide assembly comprises an air guide seat, a cooling fan and an air guide cylinder, a plurality of air guide seats are arranged on one end of the main body close to the front cover, the cooling fan is arranged on one end of the air guide seat away from the air filter assembly, the air guide cylinder is arranged on one side of the air guide seat close to the front cover, and the air guide cylinder is arranged with an open end; the air filter assembly comprises an air filter seat, an air filter cylinder, a filter cotton layer, an air suction port and a gas conveying pipe, a plurality of air filter seats are arranged on one end of the front cover close to the main body, the air filter seat is coaxially arranged with the air guide seat, the air filter cylinder is arranged on one end of the air filter seat away from the front cover, the filter cotton layer is arranged in the air filter cylinder, the air suction port is arranged on one side of the air filter cylinder away from the air guide cylinder, and the gas conveying pipe is arranged in communication between the air guide cylinder and the air filter cylinder.

[0009] In use, the stator core is installed in the interior of the main body, the front cover and the rear cover are connected to the two sides of the main body respectively, the air guide seat and the air filter seat are kept in a coaxial position, the cooling fan draws external air into the interior of the air filter cylinder through the air suction port, the air in the interior of the air filter cylinder flows into the interior of the air guide cylinder through the filter cotton layer, and the heat generated by the stator core during operation is conducted to the interior of the fixing fin through the main body, and the air guide cylinder blows to the surface of the fixing fin under the air guiding effect of the cooling fan, so as to dissipate the high temperature generated by the stator core in the interior of the main body during operation.

[0010] Preferably, the movable guide assembly comprises a corner changing groove, a corner changing spring, a movable seat, a movable shaft and a movable fin, a plurality of corner changing grooves are arranged on one end of the main body away from the air guide seat, the corner changing groove is arranged with an open end, a plurality of movable seats are arranged on one end of the main body close to the air guide seat, the movable shaft is arranged in penetration between the movable seats, the movable fin is arranged in rotation between the movable shafts in the interior of the movable seat, the movable fin is arranged outside the movable shaft, the corner changing spring is arranged between the bottom wall of the corner changing groove and the bottom wall of the movable fin, and the corner changing spring is arranged in shortening in normal state; the film removing assembly comprises a copper sleeve, a groove, a copper column and a corner round head, a plurality of copper sleeves are arranged on one end of the annular groove close to the corner changing groove, the groove is arranged on the bottom wall of one end of the movable fin close to the copper sleeve, the groove is arranged with an open end, the copper column is arranged in sliding in the interior of the copper sleeve, and the corner round head is arranged between the copper column and the groove, and the corner round head is arranged in rolling in the interior of the groove.

[0011] When the surfaces of the fixed and movable ribs are blocked by dust, fibers, oil stains and the like, a "heat insulation layer" is formed on the surfaces of the fixed and movable ribs, which seriously hinders the heat dissipation of the main body, the heat of the main body is conducted to the copper sleeve, the temperature inside the copper sleeve is increased, the air inside the copper sleeve is heated and expanded to push the copper column, the copper column pushes the movable rib by the deformation and elongation characteristics of the angle spring under the rolling of the corner head, the movable rib is away from the outer surface of the main body, the state of the airflow between the movable rib and the blowing airflow of the cooling fan is changed from parallel to intersecting, the impurities adsorbed on the surface of the movable rib are directly impacted by the airflow, local shear force is generated on the surface, which can effectively "scratch" the surface of the movable rib, peel off the dust, fibers and oil stains adsorbed on the surface, eliminate the "heat insulation layer" and ensure the heat dissipation effect of the stator core during operation.

[0012] The beneficial effects achieved by the above structure are as follows:

[0013] Compared with the prior art, the present scheme adopts the combination of the through-flow type heat dissipation mechanism and the flow type film removal mechanism, and through the fixed guide assembly, the air guide assembly, the air filter assembly, the movable guide assembly and the film removal assembly, the included angle between the movable rib and the airflow can be adjusted by the pushing force of the expanded gas according to the blocking degree of the fixed and movable ribs, so that the impurities adsorbed on the surface of the movable rib are removed by the airflow, the impurities adsorbed on the surface of the movable rib are directly impacted by the airflow, local shear force is generated on the surface, which can effectively "scratch" the surface of the movable rib, peel off the dust, fibers and oil stains adsorbed on the surface, eliminate the "heat insulation layer" and ensure the heat dissipation performance, so as to ensure the normal operation of the stator core. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an exploded structure schematic view of the present scheme;

[0015] Figure 2 It is a whole structure schematic view of the present scheme;

[0016] Figure 3 It is a front view of the present scheme;

[0017] Figure 4 It is a front view of the present scheme;

[0018] Figure 5 It is a right view of the present scheme;

[0019] Figure 6 It is a left view of the present scheme;

[0020] Figure 7 It is a sectional view of A-A part of Figure 4 ;

[0021] Figure 8 It is a sectional view of A-A part of Figure 1I part enlarged structural view of the figure;

[0022] Figure 9 I part enlarged structural view of the figure; Figure 7 I part enlarged structural view of the figure;

[0023] Figure 10 I part enlarged structural view of the figure; Figure 7 I part enlarged structural view of the figure.

[0024] Wherein, 1, front cover, 2, main body, 3, rear cover, 4, through-flow type heat dissipation mechanism, 5, fixed guide assembly, 6, annular groove, 7, fixed rib, 8, air guide assembly, 9, air guide seat, 10, heat dissipation fan, 11, air guide cylinder, 12, air filter assembly, 13, air filter seat, 14, air filter cylinder, 15, filter cotton layer, 16, air suction port, 17, air conveying pipe, 18, flow-changing type film removing mechanism, 19, movable guide assembly, 20, angle-changing groove, 21, angle-changing spring, 22, movable seat, 23, movable shaft, 24, movable rib, 25, film removing assembly, 26, copper sleeve, 27, groove, 28, copper column, 29, corner round head.

[0025] The accompanying drawings are used to provide further understanding of the scheme, and constitute a part of the specification, and are used to explain the scheme together with embodiments of the scheme, and do not constitute a limitation on the scheme. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the scheme. Obviously, the described embodiments are only part of the embodiments of the scheme, rather than all the embodiments of the scheme; based on the embodiments in the scheme, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the scheme.

[0027] In the description of the scheme, it should be understood that the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scheme.

[0028] As Figures 1-10As shown, the application provides a stator core cooling structure, which comprises a front cover 1, a main body 2, a rear cover 3, a through-flow type heat dissipation mechanism 4 and a flow-changing type film removing mechanism 18, the front cover 1 is arranged on one side of the main body 2, the rear cover 3 is arranged on the side of the main body 2 away from the front cover 1, the main body 2 is arranged through, the through-flow type heat dissipation mechanism 4 is arranged on the main body 2, the flow-changing type film removing mechanism 18 is arranged on the main body 2 on the side of the through-flow type heat dissipation mechanism 4, the through-flow type heat dissipation mechanism 4 comprises a fixed guide assembly 5, the fixed guide assembly 5 is arranged on the side wall of the main body 2, the flow-changing type film removing mechanism 18 comprises a movable guide assembly 19, a film removing assembly 25, an air guiding assembly 8 and a filter assembly 12, the movable guide assembly 19 is arranged on the side wall of the main body 2, the film removing assembly 25 is arranged on the side of the movable guide assembly 19 close to the main body 2, the air guiding assembly 8 is arranged on one end of the main body 2, and the filter assembly 12 is arranged on one end of the front cover 1 close to the main body 2.

[0029] The fixed guide assembly 5 comprises an annular groove 6 and a fixed rib 7, the annular groove 6 is arranged on the side wall of the main body 2, and a plurality of fixed ribs 7 are arranged on the inner wall of the annular groove 6; the air guiding assembly 8 comprises an air guiding seat 9, a heat dissipation fan 10 and an air guiding cylinder 11, a plurality of air guiding seats 9 are arranged on one end of the main body 2 close to the front cover 1, the heat dissipation fan 10 is arranged on one end of the air guiding seat 9 away from the filter assembly 12, the air guiding cylinder 11 is arranged on the side of the air guiding seat 9 close to the front cover 1, and the air guiding cylinder 11 is arranged with one end open; the filter assembly 12 comprises a filter seat 13, a filter cylinder 14, a filter cotton layer 15, an air suction port 16 and a gas conveying pipe 17, a plurality of filter seats 13 are arranged on one end of the front cover 1 close to the main body 2, the filter seat 13 is coaxially arranged with the air guiding seat 9, the filter cylinder 14 is arranged on one end of the filter seat 13 away from the front cover 1, the filter cotton layer 15 is arranged in the filter cylinder 14, the air suction port 16 is arranged on the side of the filter cylinder 14 away from the air guiding cylinder 11, and the gas conveying pipe 17 is arranged in communication between the air guiding cylinder 11 and the filter cylinder 14.

[0030] The active guide assembly 19 includes a corner changing groove 20, a corner changing spring 21, an active seat 22, an active shaft 23 and an active rib 24. Multiple groups of the corner changing groove 20 are arranged at one end of the main body 2 away from the air guide seat 9. The corner changing groove 20 is arranged with three open sides. Multiple groups of the active seat 22 are arranged at one end of the main body 2 close to the air guide seat 9. The active shaft 23 penetrates between the active seats 22. The active rib 24 is rotatably arranged between the active shafts 23 inside the active seats 22. The active rib 24 is arranged outside the active shafts 23. The corner changing spring 21 is arranged between the bottom wall of the corner changing groove 20 and the bottom wall of the active rib 24. The corner changing spring 21 is normally arranged in a shortened state. The film removing assembly 25 includes a copper sleeve 26, a groove 27, a copper column 28 and a corner round head 29. Multiple groups of the copper sleeve 26 are arranged at one end of the annular groove 6 close to the corner changing groove 20. The groove 27 is arranged at the bottom wall of one end of the active rib 24 close to the copper sleeve 26. The groove 27 is arranged with one open end. The copper column 28 is slidably arranged inside the copper sleeve 26. The corner round head 29 is arranged between the copper column 28 and the groove 27. The corner round head 29 is rollingly arranged inside the groove 27.

[0031] In specific use, the stator core is installed inside the main body 2. The front cover 1 and the rear cover 3 are assembled to the two sides of the main body 2 respectively. The air guide seat 9 and the air filter seat 13 are kept in the coaxial position. The corner changing spring 21 is arranged in a shortened state in the normal state. The active rib 24 is kept horizontal with the fixed rib 7.

[0032] The stator core generates high temperature during operation, which needs to be cooled.

[0033] The cooling fan 10 is started. The cooling fan 10 draws external air into the air filter cylinder 14 inside through the air suction port 16. The air inside the air filter cylinder 14 flows into the air guide cylinder 11 through the air conveying pipe 17 after being filtered by the filter cotton layer 15. The heat generated by the stator core during operation is conducted to the inside of the fixed rib 7 and the active rib 24 through the main body 2. The air flow sent out by the air guide cylinder 11 flows from the surface of the fixed rib 7 and the active rib 24 under the air guide of the cooling fan 10, which cools the high temperature generated by the stator core inside the main body 2 during operation, ensuring stable operation.

[0034] When the fixed rib 7 and the active rib 24 are exposed to air for a long time, dust, fibers, oil stains and other impurities will be adsorbed on the surface of the fixed rib 7 and the active rib 24. When the surface of the fixed rib 7 and the active rib 24 is blocked by dust, fibers, oil stains and other impurities, a "heat insulation layer" will be formed on the surface of the fixed rib 7 and the active rib 24, which will seriously hinder the dissipation of heat generated by the stator core inside the main body 2 during operation.

[0035] The "heat insulation layer" formed on the surface of the fixed ribs 7 and the movable ribs 24 wraps the main body 2, so that the heat dissipation performance of the fixed ribs 7 and the movable ribs 24 is reduced, resulting in that the heat generated inside the main body 2 cannot be discharged in time. At this time, the temperature of the main body 2 rises, the heat is conducted to the copper sleeve 26, the copper sleeve 26 is heated, the temperature inside the copper sleeve 26 rises, the copper sleeve 26 heats the air inside it, and the air inside the copper sleeve 26 expands after being heated and pushes the copper column 28 to extend outward from the copper sleeve 26. The copper column 28 rolls along the groove 27 through the rolling of the corner round head 29, pushes the movable ribs 24, and the movable ribs 24 change from the parallel state to the inclined state by using the elongation characteristics of the angle spring 21. On the one hand, the movable ribs 24 change from the parallel state to the intersecting state (i.e., the movable ribs 24 form an angle with the airflow) with the airflow blown by the heat dissipation fan 10. The airflow directly impacts the surface of the movable ribs 24 during the flow process, and local shear force is generated on the surface of the movable ribs 24. The local shear force can effectively "scratch" the impurities adsorbed on the surface of the movable ribs 24, and then peel off the dust, fibers, oil stains and the like adsorbed on the surface of the movable ribs 24, so as to eliminate the "heat insulation layer" formed by the impurities on the surface of the movable ribs 24. On the other hand, the movable ribs 24 with impurities on the surface are away from the surface of the main body 2 with rising temperature. The main body 2 is directly in contact with the airflow, and the "heat insulation layer" formed on the surface of the fixed ribs 7 and the movable ribs 24 is broken to wrap the main body 2. At this time, the heat dissipation efficiency of the main body 2 directly in contact with the air is improved compared with the heat dissipation efficiency of the main body 2 by the fixed ribs 7 and the movable ribs 24 with impurities on the surface. Therefore, the heat dissipation effect of the stator core during operation can be ensured. With the loss of heat on the surface of the main body 2, the air inside the copper sleeve 26 is cooled and contracted, the movable ribs 24 are reset to the outside of the main body 2 under the deformation of the angle spring 21, and the main body 2 is continuously cooled. The next time the operation is repeated.

[0036] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] The above describes the technical solutions and the embodiments of the present application, which is not limited, and the drawings shown are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solutions can be designed, which should belong to the protection scope of the present application.

Claims

1. A stator core cooling structure comprising a front cover, a main body, and a rear cover, characterized by: The heat dissipation mechanism and the film removing mechanism, the front cover is arranged on one side of the main body, the rear cover is arranged on the side of the main body away from the front cover, the main body is arranged through, the heat dissipation mechanism is arranged on the main body, the film removing mechanism is arranged on the main body on the side of the heat dissipation mechanism, the heat dissipation mechanism comprises a fixed guide assembly, the fixed guide assembly is arranged on the side wall of the main body, the film removing mechanism comprises a movable guide assembly, a film removing assembly, an air guiding assembly and a filter assembly, the movable guide assembly is arranged on the side wall of the main body, the film removing assembly is arranged on the side of the movable guide assembly close to the main body, the air guiding assembly is arranged on one end of the main body, and the filter assembly is arranged on one end of the front cover close to the main body. The air guiding assembly comprises an air guiding seat; The fixed guide assembly comprises an annular groove and a fixed rib; The annular groove is arranged on the side wall of the main body, and a plurality of fixed ribs are arranged on the inner wall of the annular groove; The movable guide assembly comprises an angle changing groove, an angle changing spring, a movable seat, a movable shaft and a movable rib; A plurality of angle changing grooves are arranged on one end of the main body away from the air guiding seat, a plurality of movable seats are arranged on one end of the main body close to the air guiding seat, the movable shaft is arranged through the movable seats, the movable rib is rotatably arranged between the movable shafts in the movable seats, the movable rib is arranged on the outer side of the movable shaft, and the angle changing spring is arranged between the bottom wall of the angle changing groove and the bottom wall of the movable rib. The film removing assembly comprises a copper sleeve, a groove, a copper column and a corner round head; A plurality of copper sleeves are arranged on one end of the annular groove close to the angle changing groove, the groove is arranged on the bottom wall of one end of the movable rib close to the copper sleeve, the copper column is slidably arranged in the copper sleeve, and the corner round head is arranged between the copper column and the groove.

2. The stator core cooling structure according to claim 1, characterized by: The air guiding assembly further comprises a heat dissipation fan and an air guiding cylinder, a plurality of air guiding seats are arranged on one end of the main body close to the front cover, the heat dissipation fan is arranged on one end of the air guiding seat away from the filter assembly, the air guiding cylinder is arranged on one side of the air guiding seat close to the front cover, and the air guiding cylinder is arranged with an open end.

3. The stator core cooling structure according to claim 2, characterized by: The filter assembly comprises a filter seat, a filter cylinder, a filter cotton layer, an air suction port and a gas conveying pipe, a plurality of filter seats are arranged on one end of the front cover close to the main body, the filter cylinder is arranged on one end of the filter seat away from the front cover, the filter cotton layer is arranged in the filter cylinder, the air suction port is arranged on one side of the filter cylinder away from the air guiding cylinder, and the gas conveying pipe is arranged in communication between the air guiding cylinder and the filter cylinder.

4. The stator core cooling structure according to claim 3, characterized by: The filter seat and the air guiding seat are coaxially arranged.

5. The stator core cooling structure according to claim 1, characterized by: The angle changing groove is arranged with three open ends, and the angle changing spring is arranged in a shortened state.

6. The stator core cooling structure according to claim 1, characterized by: The groove is arranged with an open end, and the corner round head is rotatably arranged in the groove.

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