Rotor, motor and electric automobile
A rotor and rotor disk technology, applied in the field of rotors, motors and electric vehicles, can solve the problems of unguaranteed bonding strength, difficulty in motor speed, and high cost of bonding glue, so as to shorten the fixing time, reduce the fixing cost, and improve the The effect of motor speed
Pending Publication Date: 2020-08-07
SHANGHAI PANGOOD POWER TECH CO LTD
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- Application Information
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Problems solved by technology
When the motor is running at high speed, the bonding strength cannot be guaranteed, the reliability is low, and it is difficult for the motor to have a high speed
In addition, the heating and curing time required for bonding is longer, and the cost of bonding glue is higher
Method used
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] Such as figure 1 , figure 2 and Figure 4 As shown, the rotor provided by the embodiment of the present invention includes: a rotor disk 1 provided with grooves, a permanent magnet 2 arranged in the grooves, and a fixing ring 3 .
[0033] In the above-mentioned rotor, along the axial direction of the rotor disk 1, the fixed ring 3 is relatively fixed to the rotor disk 1 through a limiting structure; the end of the groove far away from the axis of the...
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The invention discloses a rotor, a motor and an electric vehicle. The rotor comprises: a rotor disc provided with a groove, a permanent magnet arranged in the groove and a fixing ring, wherein in theaxial direction of the rotor disc, the fixing ring and the rotor disc are relatively fixed through a limiting structure, a groove opening is formed in one end, away from the axis of the rotor disc, ofthe groove, the permanent magnet is fastened to the rotor disc through the fixing ring, and the fixing ring sleeves the outer side face of the permanent magnet on the groove opening side and the rotor disc. According to the invention, the rotor is provided with the fixing ring which is relatively fixed with the rotor disc along the axial direction of the rotor disc, so that the permanent magnet is fastened on the rotor disc by the fixing ring sleeving the outer side surface of the permanent magnet on the groove opening side and the rotor disc, so that the installation reliability of the permanent magnet is effectively improved, and the rotating speed of the motor is improved; and the permanent magnet is fixed without bonding, so that the process is simplified, the fixing time of the permanent magnet is shortened, and the fixing cost of the permanent magnet is also reduced.
Description
technical field [0001] The invention relates to the technical field of motor design, more specifically, to a rotor, a motor and an electric vehicle. Background technique [0002] At present, in the rotor of a disc motor, the rotor disc is mostly made of magnetically conductive material, and permanent magnets are bonded to the surface of the rotor disc. When the motor runs at high speed, the bonding strength cannot be guaranteed, the reliability is low, and it is difficult for the motor to have a high speed. In addition, the heating and curing time required for bonding is longer, and the cost of bonding glue is higher. [0003] To sum up, how to design the rotor to improve the installation reliability of the permanent magnets and increase the speed of the motor is an urgent problem to be solved by those skilled in the art. Contents of the invention [0004] The purpose of the present invention is to provide a rotor to improve the installation reliability of the permanent ...
Claims
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Login to View More IPC IPC(8): H02K1/27
CPCH02K1/276Y02T10/64
Inventor 郭鑫王一奇
Owner SHANGHAI PANGOOD POWER TECH CO LTD