an electric circular saw
A technology for electric circular saws and saw blades, which is applied in circular saws, portable motor circular saws, sawing machine devices, etc. Heat dissipation efficiency, the effect of ensuring the heat dissipation effect
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Embodiment 1
[0058] like Figure 1-Figure 3 As shown, this embodiment provides an electric circular saw, including a saw blade 1 , a fixed shield 2 , a motor 3 , a heat sink 4 , a power board 5 and a casing 6 . Specifically, the casing 6 includes a grip portion for the user to hold. The motor 3 includes an output shaft that rotates around the first axis, and the output shaft is connected to and drives the saw blade 1 ; The heat sink 4 is arranged on the fixed shield 2 , the casing 6 includes a first accommodating part 61 and a second accommodating part 62 arranged at both ends of the casing 6 , the motor 3 is arranged in the first accommodating part 61 , and the heat sink 4 is arranged in the first accommodating part 61 . inside the second accommodating portion 62 . The power board 5 is arranged on the heat sink 4 for controlling the output power of the motor 3 .
[0059]In the electric circular saw provided in this embodiment, the heat sink 4 is arranged on the fixed shield 2 , the fix...
Embodiment 2
[0072] like Figure 4-Figure 6 As shown, this embodiment provides another electric circular saw. The difference between this embodiment and the first embodiment is that the installation positions of the motor 3A and the heat sink 4A are different. Correspondingly, the extension of the transmission belt 93A relative to the fixed shield 2A is The orientation, as well as the position of the locking assembly 10A relative to the stationary shield 2A, has also been adjusted. Specifically, the fixed shield 2A is fixedly connected to the casing 6A, the motor 3A is fixedly arranged in the first accommodating portion 61A of the casing 6A, and is located at the rear of the fixed shield 2A, and the heat sink 4A is arranged on the second side of the casing 6A. Inside the accommodating portion 62A, and located on the upper side of the fixed shield 2A. The cooling air path of the fan flows directly from one side of the motor 3A to the other side of the motor 3A, and the cooling air path of ...
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