A high pressure washer

Abstract

The invention discloses a high pressure cleaning machine which comprises a motor, a water pump, a high pressure gun, a controller and a sensor. The controller controls input voltages of the motor, and the sensor is arranged at a water outlet of the water pump. The controller provides different input voltages for the motor according to signals detected by the sensor. When the controller provides the voltage U1, the corresponding output working rotating speed of the motor is N1, and corresponding output parameters, namely pressure and flow of the water pump are P1 and Q1; when the controller provides the voltage U2, the corresponding output working rotating speed of the motor is N2, and corresponding output parameters, namely pressure and flow of the water pump are P2 and Q2; if U1 is set to be smaller than U2, N1 is smaller than N2, P1 is smaller than P2, and Q1 is smaller than Q2. High-pressure and low-flow parameters and low-pressure and high-flow parameters can be obtained on the same high pressure cleaning machine, and only the input voltages of the motor need to be adjusted, so that the magnitude of the flow of the water pump driven by the motor is adjustable, the using requirement of a user is met, switching is convenient and reliable, and the cost is saved.

Description

technical field [0001] The invention relates to a high-pressure cleaning machine, in particular to a high-pressure cleaning machine with multiple sets of pressure and flow cleaning parameters. Background technique [0002] In the high-pressure cleaner industry, especially household electric cleaners, the pressure and flow are restricted by the power of the motor, and the power of the motor is mainly limited by the maximum power (maximum current) of household electricity, the actual cleaning capacity and cleaning range cannot In the best condition, when encountering local dirt that is difficult to clean, it is necessary to use high pressure to improve the cleaning effect; when encountering easy-to-clean pipes or floors, it is necessary to use large flow to improve cleaning efficiency. In the prior art, in order to obtain high pressure, the motor power is often designed to the maximum allowable power value. When a large flow rate is required, the pressure is reduced and the fl...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a high-pressure cleaning machine, which solves the problem that the same high-pressure cleaning machine can realize high pressure and low flow parameters, and at the same time realize low pressure and large flow parameters, It enables users to easily choose different parameter functions of the cleaning machine according to the needs of different use environments. The switching is convenient and reliable, and meets the various needs of users.

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