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US 12,463,473 B2Granted
Electric work machine
AssigneeMakita Corporation
InventorKei Kouda
Life of this patent
Estimating the term…
Abstract
An electric work machine includes a stator including a stator core, an insulator fixed to the stator core, and a coil mounted on the insulator, a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet, a stator base including a first heat dissipation fin and supporting the stator core, and an output unit driven by the rotor.
Claims20
An electric work machine comprising:
- a stator including a stator core, an insulator fixed to the stator core, and coils mounted on the insulator;
- a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet;
- a stator base including a first heat dissipation fin and supported by the stator core;
- and
- an output unit driven by the rotor, wherein
- the first heat dissipation fin is disposed inside the stator core in a radial direction.
3 more elements
An electric work machine comprising:
- a stator including a stator core, an insulator fixed to the stator core, and coils mounted on the insulator;
- a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet;
- a stator base configured to support the stator core;
- a first heat dissipation member made of metal and having a plate shape, the first heat dissipation member being in direct contact with an end surface of the stator core;
- and
- an output unit driven by the rotor.
3 more elements
An electric work machine comprising:
- a stator including a stator core, an insulator fixed to the stator core, and coils mounted on the insulator;
- a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet;
- a stator base configured to support the stator core;
- a first heat dissipation member made of metal and configured to face an end surface of the stator core;
- and
- an output unit driven by the rotor;
- a resin portion configured to cover the coils, and
- a second heat dissipation member supported by the insulator, wherein
- thermal conductivity of the resin portion measured by a laser flash method is 1 W/(m·K) or more and 5 W/(m·K) or less, and
- the resin portion is connected to the second heat dissipation member.
7 more elements
Dependencies are inferred from the claim text.