Magnetic pump

Abstract

The invention discloses a magnetic pump. The magnetic pump includes a pump body, a diaphragm assembly for pumping water and a magnetic driving device for driving the diaphragm assembly. The pump bodyis provided with a pump water cavity and a driving cavity which are isolated from each other. The diaphragm assembly is installed on the pump water cavity, and the magnetic driving device is arrangedin the driving cavity. The diaphragm assembly includes an elastic diaphragm body and a magnetic piece corresponding to the magnetic driving device. The magnetic piece is arranged on the elastic diaphragm body. The magnetic piece is repeatedly attracted by the magnetic driving device so as to drive the elastic diaphragm body to pump water in the pump water cavity. The magnetic pump is simple in structure, small in size and accurate in flow control.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to a magnetic pump. Background technique [0002] The flow calculation of the existing water pump is generally provided with an impeller for measuring the flow direction at the water outlet or the water inlet, and the calculation is performed by calculating the number of revolutions of the impeller. However, the water output cannot be accurately controlled, and the water flow control is delayed, and the pump body needs to be additionally equipped with corresponding flow measurement and control elements, thereby increasing the structural complexity of the water pump, and the driving mechanism of the water pump generally only plays the role of the pump. The effect of water, the feedback control of the flow rate of the pumped water needs to pass through the flow measuring element at the water outlet or water inlet. That is, the pumping work cannot be stopped spontaneously. Theref...

AI Technical Summary

Problems solved by technology

However, the water output cannot be accurately controlled, and the water flow control is delayed, and the pump body needs to be additionally equipped with corresponding flow measurement and control elements, thereby increasing the structural complexity of the water pump, and the driving mechanism of the water pump generally only plays the role of the pump. The function of water, the feedback control of the flow of the pumped water needs to pass through the flow measurement element at the water outlet or water inlet

i.e. unable to stop pumping work spontaneously

Therefore, even if the pumping mechanism of the water pump receives the feedback control of the flow measuring element, in the process, the related pumping mechanism will delay working for a certain period of time, so that the output value of the actual flow rate will become larger

[0003] Especially for medical devices with high flow control accuracy and high hygienic requirements, the components of the existing conventional pumping mechanism, such as blades, shafts, etc., will wear out and produce fine debris to contaminate the fluid

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