Device for mounting magnets to motors
A technology for magnets and mounting components, used in electromechanical devices, synchronous motors with stationary armatures and rotating magnets, and the manufacture of motor generators, etc. problem, to achieve the effect of low damage
Active Publication Date: 2021-04-06
PROTEAN ELECTRIC LIMITED
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, precisely because of said significantly stronger magnetic field produced by the rare earth magnets, the placement of the rare earth magnets in the rotor can become problematic during the manufacture of the rotor
For example, when a magnet is attached to the rotor back iron, the attractive force between the magnet and the rotor back iron can cause the magnet to collide with the rotor back iron, resulting in damage to the magnet
Also, when trying to fit a magnet into a specific location on a rotor back iron, magnetic interactions between the magnet and other magnets already installed in the rotor can make precise placement of the magnet difficult
Method used
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Embodiment Construction
[0021] For the purposes of this embodiment, a magnet mounting arrangement for mounting a plurality of magnets to a rotor, such as a rotor for an electric motor or generator, is described. However, the present magnet mounting device can also be used for mounting magnets to a complementary motor component, namely the stator.
[0022] For the purposes of this example, figure 1 An exploded view of one embodiment of a rotor 240 is shown having a rotor housing 100 and a back iron 110 in which a plurality of magnets, such as a plurality of rare earth magnets, are to be mounted. Although this embodiment describes mounting a plurality of magnets to a back iron mounted within a rotor housing, equally, a plurality of magnets may be mounted directly to a rotor housing. Similarly, any form of rotor or stator may be used.
[0023] like figure 1 As shown, the rotor housing 100 includes a radial / front portion 220 and a cylindrical portion 221 , wherein the cylindrical portion 221 acts as a...
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Abstract
Apparatus for mounting magnets to a rotor or stator of an electrical machine, wherein the rotor or stator is arranged to magnetically interact with the magnets to enable magnetic attachment of the magnets to a first mounting surface of the rotor or stator, the apparatus comprising a second a mounting element of a mounting surface arranged to magnetically interact with a magnet to enable magnetic attachment of the magnet to a second mounting surface; for moving the mounting element to a predetermined distance from said first mounting surface A mechanism in a position wherein the mounting element is such that a magnet is magnetically attached to a second mounting surface; and a mechanism for moving the mounting element away from the first mounting surface when the mounting element is a predetermined distance from the first mounting surface, wherein applying The magnetic force between the magnet and the mounting element and the magnetic force applied between the magnet and the rotor or stator is arranged such that the magnetic force between the rotor or stator and the magnet retains the magnet on the first mounting surface when the mounting element is removed.
Description
technical field [0001] The present invention relates to magnet mounting devices, and more particularly to devices for mounting magnets to electric machines. Background technique [0002] Motors work on the principle that current-carrying wires will be stressed in the presence of a magnetic field. When the current-carrying wire is placed perpendicular to the magnetic field, the force on the current-carrying wire is proportional to the flux density of the magnetic field. Typically, in electric motors, the force on the current-carrying wires develops as a rotational torque. [0003] Examples of known types of motors known to those skilled in the art include induction motors, brushless permanent magnet motors, switched reluctance motors and synchronous slip ring motors, which have a rotor and a stator. [0004] Rotors for permanent magnet motors typically include a plurality of permanent magnets mounted on or in a rotor back-iron such that the magnetic field alternates around ...
Claims
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IPC IPC(8): H02K15/03
CPCH02K15/03H02K7/14H02K21/22H02K11/30H02K1/28Y10T29/49009
Inventor 赛缪尔·布罗德布里奇
Owner PROTEAN ELECTRIC LIMITED