Heating pump and dishwasher

Abstract

The invention discloses a heating pump and a dishwasher. The heating pump comprises a first pump case, an impeller, a heating pipe, a second pump case and a flow guiding structure, wherein the first pump case is provided with a first inlet and a first outlet; the impeller is rotatably arranged in the first pump case and is suitable for driving fluid to flow into the first outlet from the first inlet; the axis of the impeller extends in the up-down direction; the heating pipe covers the outer side of the first pump case; the first outlet of the first pump case communicates with the internal space of the heating pipe; the second pump case communicates with the internal space of the heating pipe; and the flow guiding structure is arranged in the heating pipe to guide flow to the second pump case from the first pump case. According to the heating pump, the first pump case and the flow guiding structure are arranged to gather water flow in all impeller passages, and then the water flow is discharged out of one or multiple outlets to enable the flowing state of the water flow in a heating cavity to be steady and regular, so that the overall hydraulic efficiency of the dishwasher is improved.

Description

technical field [0001] The invention relates to the technical field of integrated heat pumps, in particular to a heat pump and a dishwasher with the same. Background technique [0002] The existing washing pumps in dishwashers usually integrate the heating function into the washing pumps in order to save space, but as a result, the original flow channel structure is often destroyed, resulting in additional hydraulic loss. Specifically, the integrated heated washing pump in existing dishwashers usually adopts a heating tube heating method. Due to the existence of the washing pump heating tube, the size of the pump chamber is increased, which seriously affects the overall pump. At the same time, due to the limited heat exchange area of ​​the heating tube, it is very difficult to increase the heating power in a limited space. In addition, the existing washing pump integrated with heating in the dishwasher also has a structure that uses a cylindrical thick-film heater as the pu...

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Problems solved by technology

[0003] An object of the present invention is to overcome the existing problems in the prior art that the heating tube is integrated in the washing pump to damage the channel structure and cause hydraulic loss, and to overcome the hydraulic loss in the pump cavity caused by the traditional thick film heater directly as the pump cavity structure To solve the problem, a heat pump is proposed, which can use a thick film heater as a liquid circulation pipe in a limited space without sacrificing hydraulic efficiency, and set a first pump casing structure outside the impeller, so that each impeller The water flow in the channel is gathered and then discharged from one or more outlets, so that the flow state of the water flow in the heating chamber is relatively stable and regular, thereby improving the overall hydraulic efficiency

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