Heating pump and dish washing machine

Abstract

The invention discloses a heating pump and a dish washing machine. The heating pump comprises a first pump shell, an impeller, a heating pipe and a second pump shell, and the first pump shell is provided with a first inlet and a first outlet; the impeller is rotatably arranged in the first pump shell, and is applicable for driving fluid to flow from the first inlet to the first outlet; the axis ofthe impeller extends up and down, and the heating pipe is arranged on the outer side of the first pump shell; and the first outlet of the first pump shell communicates with the interior space of theheating pipe, and the second pump shell communicates with the interior space of the heating pipe. In the heating pump, through arrangement of the first pump shell structure, water flow in impeller channels is gathered, and then discharged from one or more outlets; and the water in a heating cavity is enabled to flow more stably and regularly, so that the overall hydraulic efficiency of the dish washing machine 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 integrated heated washing pump in the existing dishwasher also has a structure that uses a cylindrical thick-film heater as the pump cha...

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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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