Internal heat dissipation type direct-current brushless motor and handheld lithium battery tool
A brushless DC motor and heat dissipation technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of poor reliability, accelerated aging of wires and electronic components, poor timeliness, etc., to achieve lubrication and dust prevention Better noise reduction effect and simplified internal structure
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[0046] refer to Figure 1-7 As shown, it is a specific embodiment of the present invention: an internal heat dissipation brushless DC motor, including a rotor 1, the rotor 1 includes a rotating shaft 2, a rotor core 3 covering the middle of the rotating shaft 2, and a commutator 4 , gasket 5; stator 6, the stator 6 is sleeved on the outside of the rotor core 3, the stator 6 includes the stator core 7 and stator windings; the first cooling oil storage tank 9, the first cooling oil storage tank 9 Including the first oil outlet; the second cooling oil storage tank 10, the second cooling oil storage tank 10 includes the first oil inlet; the first bearing 11, the first bearing 11 is installed on the second shaft 2 end-to-end (i.e. figure 1 The right end of the rotating shaft 2), the inner ring follows the rotation of the rotating shaft 2, and the outer ring is fixed on the carrier; the second bearing 12, the second bearing 12 is installed on the second end of the rotating shaft 2 ...
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