CN210246424U

CN210246424U - Rotor core with heat dissipation performance

Info

Publication number: CN210246424U
Application number: CN201921738272.6U
Authority: CN
Inventors: Xueyuan Gao; 高雪源; Dunlong Yu; 余敦龙; Xiaofei Zhuang; 庄小飞
Original assignee: Changzhou Baojie Chongpian Co Ltd
Current assignee: Changzhou Baojie Chongpian Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-04-03
Anticipated expiration: 2029-10-17

Abstract

The utility model relates to a motor production technical field especially relates to a rotor core with heat dispersion, including the iron core piece, the locating hole has been seted up at the top of iron core piece, the first elliptical aperture that runs through is seted up in the outside at iron core piece top, the through-hole that is located on the iron core piece is seted up in the outside of first elliptical aperture, the second elliptical aperture that is located on the iron core piece is seted up in the outside of through-hole, the ventilation breach that runs through is seted up in the outside of iron core piece. The utility model discloses a when the iron core piece takes place to rotate, the air current can be followed the ventilation breach and got into to the inside of first elliptical aperture, through-hole and second elliptical aperture, dispel the heat to the coil of winding in first elliptical aperture, through-hole and second elliptical aperture, the wind speed that can make the air current simultaneously is accelerated, promote the outside exhaust speed of the inside heat of motor greatly, in addition, can make rotor core reach the lightweight, reduce material cost, reduce the power loss of motor, rotor core's radiating performance has further been improved.

Description

Rotor core with heat dissipation performance

Technical Field

The utility model relates to a motor production technical field especially relates to a rotor core with heat dispersion.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, the main function of the motor is to generate driving torque as a power source of electric appliances or various machines, at present, the most common motor is to utilize heat energy, water energy and the like to push a generator rotor to generate electricity, and a rotating part of the motor is called as a rotor and does not rotate as a stator.

Present rotor core separates into mutual electrically insulated's thin slice usually, has reduced the ascending cross-section of magnetic force line direction, reduces vortex and loss, reaches best magnetic screen effect, because need align the stack-up with multilayer iron core thin slice together, can make rotor core's weight heavier, makes motor power loss great, causes motor temperature to rise easily.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a rotor core with heat dispersion possesses heat dispersion's advantage, has solved rotor core because need align multilayer iron core thin slice the closed assembly together, can make rotor core's weight heavier, makes motor power loss great, causes the problem that motor temperature risees easily.

(II) technical scheme

In order to realize the technical problem, the utility model provides such rotor core with heat dispersion, including the iron core piece, the locating hole has been seted up at the top of iron core piece, the first elliptical aperture that runs through has been seted up in the outside at iron core piece top, the through-hole that is located on the iron core piece has been seted up in the outside of first elliptical aperture, the second elliptical aperture that is located on the iron core piece has been seted up in the outside of through-hole, the ventilation breach that runs through is seted up in the outside of iron core piece, and first elliptical aperture, through-hole, second elliptical aperture and ventilation breach intercommunication, the lightening hole that runs through has been seted up at the top of iron core piece.

Furthermore, the number of the lightening holes is three, and the three lightening holes are circumferentially distributed on the top of the iron core plate.

Furthermore, a through rotating shaft hole is formed in the middle of the top of the iron core plate, a through positioning notch is formed in one side of the middle of the top of the iron core plate, and the positioning notch is communicated with the rotating shaft hole.

Furthermore, the number of the positioning holes is three, the three positioning holes are circumferentially distributed on the top of the iron core plate, and the three positioning holes and the three lightening holes are arranged in a staggered mode.

Furthermore, the bottom of the iron core plate is fixedly connected with a positioning block in a circumferential manner, the height of the positioning block is reduced from outside to inside in sequence, the positioning block is located under the positioning hole, and the positioning block is matched with the positioning hole.

Furthermore, the top of the iron core plate is circumferentially provided with four fixing holes, and the four fixing holes are circular.

(III) advantageous effects

The utility model provides a rotor core with heat dispersion possesses following beneficial effect:

1. this rotor core with heat dispersion, through the iron core piece, first elliptical hole, a through-hole, the cooperation of second elliptical hole and ventilation breach is used, when the iron core piece takes place to rotate, the air current can enter into to first elliptical hole from the ventilation breach, the inside of through-hole and second elliptical hole, to the winding in first elliptical hole, coil in through-hole and the second elliptical hole dispels the heat, the wind speed that can make the air current simultaneously accelerates, promote the outside exhaust speed of the inside heat of motor greatly, in addition, can make rotor core reach the lightweight, reduce material cost, reduce the power loss of motor, rotor core's radiating performance has further been improved.

2. This rotor core with heat dispersion, through the setting of lightening hole, because the lightening hole is the circumference form and distributes on the iron core piece, under the unchangeable circumstances of assurance torque, has alleviateed rotor core's weight, and further, has reduced the power loss of motor, has improved heat dispersion.

3. This rotor core with heat dispersion uses through the cooperation of locating hole and locating piece, can be in the same place the accurate closed assembly in a plurality of iron core piece location, and the position of accurate restriction rotor iron core piece takes place the displacement when preventing rotor core closed assembly, avoids rotor core uneven circumstances of closed assembly to appear, and stability is higher, simultaneously, the phenomenon that single iron core piece drops can not appear, satisfies the fast-speed operation requirement of motor.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure: 1. an iron core sheet; 2. positioning holes; 3. a first elliptical hole; 4. a through hole; 5. a second elliptical hole; 6. a vent gap; 7. lightening holes; 8. a rotating shaft hole; 9. positioning the notch; 10. positioning blocks; 11. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a rotor core with heat dissipation performance includes an iron core plate 1, the top of the iron core plate 1 is provided with three positioning holes 2, the three positioning holes 2 are circumferentially distributed on the top of the iron core plate 1, the three positioning holes 2 are staggered with three lightening holes 7, the outer side of the top of the iron core plate 1 is provided with a first elliptical hole 3, the outer side of the first elliptical hole 3 is provided with a through hole 4 located on the iron core plate 1, the outer side of the through hole 4 is provided with a second elliptical hole 5 located on the iron core plate 1, the outer side of the iron core plate 1 is provided with a ventilation notch 6, the first elliptical hole 3, the through hole 4, the second elliptical hole 5 and the ventilation notch 6 are communicated, and when the iron core plate 1 rotates, the air flow can enter the first elliptical hole 3, the through hole 4 and the second elliptical hole 5 from the ventilation notch 6, the coils wound in the first elliptical hole 3, the through hole 4 and the second elliptical hole 5 are radiated, meanwhile, the air speed of the air flow is accelerated, the speed of discharging heat inside the motor outwards is greatly improved, in addition, the rotor iron core can achieve light weight, the material cost is reduced, the power loss of the motor is reduced, the heat radiation performance of the rotor iron core is further improved, the top of the iron core plate 1 is provided with the through lightening holes 7, the number of the lightening holes 7 is three, the three lightening holes 7 are circumferentially distributed at the top of the iron core plate 1, through the arrangement of the lightening holes 7, the lightening holes 7 are circumferentially distributed on the iron core plate 1, under the condition of ensuring that the torque is unchanged, the weight of the rotor iron core is lightened, further, the power loss of the motor is reduced, the heat dissipation performance is improved.

The middle part at 1 top of iron core piece is seted up the pivot hole 8 that runs through, and the location breach 9 that runs through is seted up to one side at 1 top middle part of iron core piece, and location breach 9 and pivot hole 8 intercommunication.

The bottom of the iron core plate 1 is fixedly connected with a positioning block 10 in a circumferential shape, the height of the positioning block 10 is reduced from outside to inside in sequence, the positioning block 10 is positioned right below the positioning hole 2, and the positioning block 10 is matched with the positioning hole 2, through the matching use of the positioning hole 2 and the positioning block 10, a plurality of iron core pieces 1 can be accurately positioned and stacked together, the position of the rotor iron core piece is accurately limited, the rotor iron core is prevented from displacement during stacking, the condition that the rotor iron core is not stacked neatly is avoided, the stability is high, meanwhile, the phenomenon that a single iron core plate 1 falls off can not occur, the high-speed operation requirement of the motor is met, the top of the iron core plate 1 is circumferentially provided with four fixing holes 11, the four fixing holes 11 are all round, through the arrangement of the fixing hole 11, the nails are inserted into the fixing hole 11, so that the plurality of iron chips 1 can be fixed together.

When iron core piece 1 takes place to rotate, the air current can enter into first elliptical aperture 3 from ventilation breach 6, through-hole 4 and second elliptical aperture 5's inside, to winding at first elliptical aperture 3, the coil in through-hole 4 and second elliptical aperture 5 dispels the heat, can make the wind speed of air current accelerate simultaneously, promote the outside exhaust speed of the inside heat of motor greatly, in addition, can make rotor core reach the lightweight, reduce material cost, reduce the power loss of motor, rotor core's radiating performance has further been improved, because lightening hole 7 is circumference form distribution on iron core piece 1, under the unchangeable circumstances of assurance torque, rotor core's weight has been alleviateed, and further, the power loss of motor has been reduced, heat dispersion has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rotor core with heat dissipation performance, includes iron core piece (1), its characterized in that: locating hole (2) have been seted up at the top of iron core piece (1), first elliptical hole (3) that run through have been seted up in the outside at iron core piece (1) top, through-hole (4) that are located on iron core piece (1) have been seted up in the outside of first elliptical hole (3), second elliptical hole (5) that are located on iron core piece (1) have been seted up in the outside of through-hole (4), ventilation breach (6) that run through have been seted up in the outside of iron core piece (1), and first elliptical hole (3), through-hole (4), second elliptical hole (5) and ventilation breach (6) intercommunication, lightening hole (7) that run through have been seted up at the top of iron core piece (1).

2. The rotor core having a heat dissipation property according to claim 1, wherein: the number of the lightening holes (7) is three, and the three lightening holes (7) are circumferentially distributed at the top of the iron core plate (1).

3. The rotor core having a heat dissipation property according to claim 1, wherein: the middle part at the top of the iron core plate (1) is provided with a through rotating shaft hole (8), one side of the middle part at the top of the iron core plate (1) is provided with a through positioning notch (9), and the positioning notch (9) is communicated with the rotating shaft hole (8).

4. The rotor core having a heat dissipation property according to claim 1, wherein: the number of the positioning holes (2) is three, the three positioning holes (2) are circumferentially distributed at the top of the iron core plate (1), and the three positioning holes (2) and the three lightening holes (7) are arranged in a staggered mode.

5. The rotor core having a heat dissipation property according to claim 1, wherein: the bottom of iron core piece (1) is circumference form fixedly connected with locating piece (10), the height of locating piece (10) reduces from outside to inside in proper order, and locating piece (10) are located locating hole (2) under, and locating piece (10) and locating hole (2) looks adaptation.

6. The rotor core having a heat dissipation property according to claim 1, wherein: the top of the iron core plate (1) is provided with four fixing holes (11) in a circumferential shape, and the number of the fixing holes (11) is four, and the fixing holes (11) are all circular in shape.