CN107800245B

CN107800245B - Water-cooling soft magnetic composite material disc type motor

Info

Publication number: CN107800245B
Application number: CN201710971588.9A
Authority: CN
Inventors: 黄平林
Original assignee: Jiangsu University
Current assignee: Ant New Energy Tianjin Co ltd
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2019-12-31
Anticipated expiration: 2037-10-18
Also published as: CN107800245A

Abstract

The invention discloses a disc type motor adopting a soft magnetic composite material as a stator, and relates to the technical field of motors, wherein the motor comprises a rotor, a fixed shaft, a bearing and a stator; the motor adopts a fixed shaft, a motor stator is positioned in the middle of a pair of rotor disks, the rotor disks can rotate around the motor fixed shaft, and the rotor and the fixed shaft are connected by a bearing; the stator comprises a stator core module, a coil winding, a fixing ring and a fixing clamp; the stator core module is a columnar module with a trapezoidal section and made of soft magnetic composite materials, the coil winding is directly wound on the stator core module, the stator core modules are arranged into a circular ring shape according to the circumference, the outer ring and the inner ring of the circular ring are fixed through fixing rings, the fixing rings are buckled on the stator core modules through fixing hoops and bolts, and the circular ring formed by the stator core modules is a stable and firm whole. The motor is cooled by water, has simple structure, light weight, high efficiency and good cooling effect, and is suitable for mechanized mass production.

Description

Water-cooling soft magnetic composite material disc type motor

Technical Field

The invention relates to the technical field of motors, in particular to a water-cooling soft magnetic composite material disc type motor.

Background

At present, the stator of a disc type motor comprises a stator core and a coil winding, the stator core is generally wound into a disc shape by adopting a silicon steel sheet, a slot is formed in one end surface of the disc to place a coil, the motor stator is simple in structure and high in efficiency, but the process for processing the stator core is complex, the processing period is long, and when the rotating speed of the motor is high, the ferromagnetic loss of the silicon steel sheet is large, and the efficiency of the motor is seriously influenced. Therefore, in order to further reduce the core loss of the motor, the stator can adopt an iron-core-free structure, and is directly wound and placed by the stator coil to be in a disc structure. The soft magnetic composite material is an electrical material with good magnetic conductivity and small high-frequency loss, and provides an effective way for developing and designing a high-speed and high-efficiency disc motor.

Disclosure of Invention

In order to overcome the problems, the invention provides the disk type motor adopting the soft magnetic composite material as the stator, and the design of the stator structure of the motor ensures that the motor adopts water cooling, has simple structure, light weight, high efficiency and good cooling effect, and is suitable for mechanized mass production.

A water-cooling soft magnetic composite material disc type motor comprises a rotor, a fixed shaft, a bearing and a stator; the stator is arranged between the pair of rotors, the rotors rotate around the fixed shaft, and the rotors are connected with the fixed shaft through bearings; the stator comprises a stator core module, a coil winding, a fixing ring, a cooling water nozzle and a fixing hoop; the stator core module is formed by die-casting soft magnetic composite materials, the section of the stator core module is a trapezoidal cylinder module, four corners of the cylinder module are fillets, a plurality of stator core modules are arranged into a circular structure according to the circumference, and the coil winding is directly wound on the stator core module; the fixing ring is buckled on the stator core module through the fixing clamp.

Further, the fixing ring comprises an inner ring fixing ring and an outer ring fixing ring; and the inner ring and the outer ring of the stator core modules which are arranged into a circular ring structure according to the circumference are respectively fixed by an inner ring fixing ring and an outer ring fixing ring.

Furthermore, the inner ring fixing ring and the outer ring fixing ring are both hollow metal tubes.

Furthermore, the two ends of the inner ring fixing ring and the outer ring fixing ring are respectively connected with a water inlet nozzle and a water outlet nozzle.

Furthermore, the structure of the fixing clamp is in an omega shape.

Further, a cooling water nozzle is arranged on the stator; the cooling water nozzle on the outer circumference of the stator is led out through the stator shell, and the cooling water nozzle on the inner circumference of the stator is led out through the motor shaft.

Further, the fixing clamp is made of a non-magnetic material such as copper or plastic.

Furthermore, the inner ring fixing ring and the outer ring fixing ring are two.

Has the advantages that:

1. the stator core module is formed by die-casting a soft magnetic composite material, and the soft magnetic composite material is an electrical material with good magnetic conductivity and small high-frequency loss, so that an effective way is provided for developing and designing a high-speed and high-efficiency disc motor.

2. The fixing rings are hollow metal tubes, two ends of each fixing ring are respectively connected with the water inlet nozzle and the water outlet nozzle, cooling water flows into the fixing rings through the water inlet nozzles and then flows out of the water outlet nozzles to circulate continuously, and the soft magnetic composite material stator is cooled. The cooling water nozzle on the outer circumference of the stator is led out through the stator shell, and the cooling water nozzle on the inner circumference of the stator is led out through the motor shaft.

3. Through the design to motor stator structure for this motor adopts the water cooling, simple structure, and light in weight, efficient, the cooling effect is good, is fit for mechanized mass production.

Drawings

FIG. 1 is a schematic structural diagram of a water-cooled soft magnetic composite disc motor according to the present invention;

fig. 2 is a schematic structural diagram of a stator in the water-cooling soft magnetic composite material disc motor of the invention.

The reference numbers are as follows:

1-a rotor; 2, fixing a shaft; 3-a bearing; 4-stator core module; 5-fixing the ring; 6-cooling the water nozzle; 7-fixing the clamp; 8-a coil winding; 9-outer ring fixing ring; 10-inner ring fixing ring; 11-bolt.

Detailed Description

For a further understanding of the present invention, reference will now be made to the following descriptions taken in conjunction with the accompanying drawings, in which:

the structure schematic diagram of the water-cooling soft magnetic composite material disc type motor is shown by combining the attached figure 1, and the water-cooling soft magnetic composite material disc type motor comprises a rotor 1, a fixed shaft 2, a bearing 3, a stator core module 4, a fixed ring 5, a stator, a cooling water nozzle 6 and a fixed clamp 7; the stator of the motor comprises a stator core module 4, a coil winding 8, a fixing ring 5, a cooling water nozzle 6 and a fixing hoop 7; the stator core module 4 is formed by die-casting soft magnetic composite materials, the external shape of the stator core module is characterized in that the stator core module is a cylinder module with a trapezoidal section, four corners of the cylinder are fillets, and the coil winding 8 is directly wound on the stator core module 4; the stator core modules 4 are arranged into a circular ring shape according to the circumference, the inner ring and the outer ring of the circular ring-shaped structure are fixed by fixing rings 5, specifically, the inner ring and the outer ring of the circular ring-shaped structure are respectively fixed by an inner ring fixing ring 10 and an outer ring fixing ring 9, wherein the inner ring fixing ring 10 and the outer ring fixing ring 9 are respectively arranged at the upper part and the lower part of the stator core module 4, the fixing rings 5 are buckled on the stator core module 4 by fixing hoops 7, and the two feet of the fixing hoops 7 are fixed by bolts 11, so that a stator formed by the stator core modules 4 becomes a stable and firm whole, namely the stator of the motor.

The fixing ring 5 is a hollow metal tube, and the fixing ring 5 comprises an inner ring fixing ring 10 and an outer ring fixing ring 9; the two ends of the inner ring fixing ring 10 and the outer ring fixing ring 9 are respectively connected with a water inlet nozzle and a water outlet nozzle, cooling water flows into the fixing ring 5 through the water inlet nozzle and then flows out of the water outlet nozzle, and the cooling water is circulated continuously to cool the soft magnetic composite material stator; the cooling water nozzle 6 on the outer circumference of the stator is led out through the stator shell, and the cooling water nozzle 6 on the inner circumference of the stator is led out through the motor shaft.

The water-cooling soft magnetic composite material disc type motor adopts a fixed shaft 2, a stator of the motor is positioned between a pair of rotors 1, the rotors 1 can rotate around the fixed shaft 2 of the motor, and the rotors 1 are connected with the fixed shaft 2 through bearings 3.

The invention relates to a soft magnetic composite material disc type motor stator which is combined with a figure 2, and comprises a stator core module 4, a coil winding 8, an outer ring fixing ring 9, an inner ring fixing ring 10, a bolt 11 and a fixing clamp 7; the structure of fixed clamp 7 is omega shape, and the material adopts non-magnetic material as: copper, plastic or the like, and the fixing rings 5 are fastened to the stator core module 4 by bolts 11 at both legs of the fixing clips 7; the inner ring fixing ring 10, the outer ring fixing ring 9 and the stator core modules 4 are fastened and connected through the fixing clamp 7 and the bolts 11, so that the stator core modules 4 are combined into a disc under the fastening of the inner ring fixing ring 10 and the outer ring fixing ring 9. Wherein, the solid fixed ring of outer lane 10 and the solid fixed ring of inner circle 9 respectively have two, are located the upper portion and the lower part of stator core module 4 respectively, and characterized by hollow tubular metal resonator, the water inlet nozzle and the faucet are connected respectively at the both ends of every solid fixed ring 5, and cooling water flows into solid fixed ring through the water inlet nozzle, flows out from the faucet again, and continuous circulation cools off soft-magnetic composite stator, cools off coil winding 2 simultaneously, improves the cooling effect of motor, further improves motor efficiency.

The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A water-cooling soft magnetic composite material disc type motor comprises a rotor (1), a fixed shaft (2), a bearing (3) and a stator; the stator is arranged between the pair of rotors (1), the rotors (1) rotate around the fixed shaft (2), and the rotors (1) are connected with the fixed shaft (2) through the bearings (3); the stator is characterized by comprising a stator core module (4), a coil winding (8), a fixing ring (5), a cooling water nozzle (6) and a fixing clamp (7); the stator core modules (4) are formed by soft magnetic composite materials in a die-casting mode, the sections of the stator core modules (4) are trapezoidal cylinder modules, four corners of each cylinder module are rounded corners, the stator core modules (4) are arranged into a circular structure according to the circumference, and the coil windings (8) are directly wound on the stator core modules (4); the fixing ring (5) is buckled on the stator core module (4) through a fixing hoop (7); the fixing ring (5) comprises an inner ring fixing ring (10) and an outer ring fixing ring (9); the inner ring and the outer ring of the stator core modules (4) which are arranged into a circular structure according to the circumference are respectively fixed by an inner ring fixing ring (10) and an outer ring fixing ring (9); the inner ring fixing ring (10) and the outer ring fixing ring (9) are both hollow metal tubes; the cooling water nozzle (6) comprises a water inlet nozzle and a water outlet nozzle, and the two ends of the inner ring fixing ring (10) and the outer ring fixing ring (9) are respectively connected with the water inlet nozzle and the water outlet nozzle.

2. A water-cooled soft magnetic composite disc motor according to claim 1, characterized in that the structure of the fixing clip (7) is omega-shaped.

3. A water-cooled soft magnetic composite disc motor according to claim 1, characterized in that the stator is provided with said cooling nozzles (6); the cooling water nozzle (6) on the outer circumference of the stator is led out through the stator shell, and the cooling water nozzle (6) on the inner circumference of the stator is led out through the motor shaft.

4. A water-cooled soft magnetic composite disc motor according to claim 2, characterized in that the fixing clip (7) is made of a magnetically non-conductive material, which is copper or plastic.

5. A water-cooled soft magnetic composite disc motor according to claim 1, characterized in that the inner ring fixing ring (10) and the outer ring fixing ring (9) are both two.