| 摘要 |
PURPOSE: A hot water circulating pump is provided to reduce manufacturing costs by decreasing a height of a hot water circulating pump because a motor rotating an impeller is formed inside the pump to be integrated. CONSTITUTION: A hot water circulating pump comprises an upper housing(110), a lower housing(120), an inner housing(130), an impeller(140), a rotor, and a stator(160). A receiving space is formed inside the lower housing. An impeller receiving groove is formed in the middle part of the inner housing. A lower shaft supporting unit is formed in the middle part of a bottom unit of the impeller receiving groove. The impeller housed inside the upper housing and impeller receiving groove is installed to be rotated so that a fluid flowing path is formed between the inner surface of the inner housing and impeller. The rotor is installed inside the outer circumference of the impeller. The stator is installed in the receiving space between the inner and lower housings corresponding to the rotor.
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