Fully-closed motor, air-cooling impeller thereof and electric vehicle employing motor
A motor, fully enclosed technology, applied in the direction of electric vehicles, motors, electric components, etc., can solve the problem of suboptimal permanent magnet rotor motors
Pending Publication Date: 2018-02-09
HANYU GRP CO LTD
View PDF0 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The traditional design of the cooling structure of the fully enclosed motor can be seen in "Motor Design" (Chen Shikun, Xi'an Jiaotong University, Mechanical Industry Press, Beijing, 1982, 1st edition). ideal
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] The motor of Embodiment 1 of the present invention is improved on the basis of the traditional structure of the closed motor shown in Fig. 8-3 in "Motor Design", such as figure 1 shown. The design of the motor follows the traditional structure including:
[0048] - frame 5;
[0049] - the end covers 71 and 72 covering the two axial ends of the frame 5;
[0050] ——the stator 10 fixed in the inner cavity of the frame 5, the stator 10 includes a stator core 101 and a stator winding 102;
[0051] ——The rotor 12 fixed on the rotating shaft 6, the rotor 12 includes the rotor iron core 3 and the end rings 4 located at its two ends for compressing the iron core or conducting electricity, the rotating shaft 6 is supported by the end covers 71, 72 via bearings;
[0052] — There is an air gap 32 between the outer circle of the rotor 12 and the inner circle of the iron core of the stator 10 .
[0053] Design modifications include:
[0054] ——Cancel the air-cooled structure out...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a fully-closed motor, comprising a motor base, stators, end covers and rotors, wherein the stators are fixed in an inner cavity of the motor base; the end covers cover two axial ends of the motor base; the rotors are fixed on rotation shafts; and the rotation shafts are borne in the end covers through bearings. The rotors and the stators are equipped with axial ventilationchannels. The air gaps between the rotors and the stators are not smaller than 0.25mm. According to two ventilator impellers which are arranged in the inner cavity of the motor base and rotate with the rotors coaxially, the rated pressure of one ventilator impeller is relatively low and the rate of flow of the ventilator impeller is relatively high, an inlet of the ventilator impeller covers an opening at the left end of the axial ventilation channel of the corresponding rotor, and an outlet of the ventilator impeller leads to an opening at the left end of the axial ventilation channel of thecorresponding stator; and the rated pressure of the other ventilator impeller is relatively high and the rate of flow of the ventilator impeller is relatively low, an inlet of the ventilator impellerfaces an opening at the left end of the air gap between the corresponding rotor and the corresponding stator, and an outlet of the ventilator impeller leads to an opening at the left end of the axialventilation channel of the corresponding stator. According to the design, the temperature rise of the motor, particularly, the temperature rise of the permanent magnet rotors is obviously reduced. According to the air-cooling impeller employed in the motor, the two ventilator impellers are combined integrally, thereby facilitating production and maintenance. The weight of an electric vehicle usingthe motor is reduced due to cooling effect improvement of the motor, so relatively more batteries can be mounted, and the full-charge driving range can be prolonged.
Description
technical field [0001] The invention relates to a fully enclosed motor, in particular to its cooling structure, and its IPC classification belongs to H02K9 / 06. Background technique [0002] The traditional design of the cooling structure of the fully enclosed motor can be seen in "Motor Design" (Chen Shikun, Xi'an Jiaotong University, Mechanical Industry Press, Beijing, 1982, 1st edition). ideal. [0003] The terms and common knowledge involved in the present invention can also be seen in national standards and industry standards GB / T 2900.25 "Electrical Terminology for Rotating Electrical Machines", GB / T 19075 "Industrial Ventilator Vocabulary and Definition of Types", JB / T 2977 "Fan and Roots Blower Terminology", JB / T 10562 "Technical Conditions for Axial Fans for General Purposes" and JB / T 10563 "Technical Conditions for Centrifugal Fans for General Purposes" and "Ventilators" (Li Qingyi, Huazhong Institute of Technology, Mechanical Industry Press, Beijing, 1981 1st edi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/06H02K5/18H02K5/20
CPCH02K5/18H02K5/20H02K9/06Y02T10/64
Inventor 李瑶周志敏邓池张悠江黄军刘松区长钊
Owner HANYU GRP CO LTD