A hand-held high-pressure cleaner with a silent water-cooled high-efficiency motor

Abstract

The invention discloses a hand-held high-pressure cleaning machine with a silent water-cooled high-efficiency motor, comprising: a motor pump unit, the motor pump unit includes a mini pump and a water-cooled motor, the water-cooled motor is connected with the mini pump, and the mini pump has a pump water inlet and a high-pressure outlet The water port; and the shell, the shell seals and wraps the motor pump unit; the water-cooled motor includes the motor shell; the motor shaft, the rotor and the stator core are installed in the motor shell; the rotor is installed on the motor shaft, and the stator core is located outside the rotor; the motor shell It has a side wall, and the stator core is close to the side wall to form a heat conduction channel; the motor casing is provided with at least one cooling channel passing through the side wall, a water inlet connected to one end of the cooling channel and a water outlet connected to the other end of the cooling channel, and the water inlet Connect to an external water source, and the water outlet is connected to the water inlet of the pump. The invention has beneficial effects: the motor adopts water cooling to replace the existing air cooling, the waterproof level of the motor and the whole machine can reach IPX7 or even higher, and the machine is safer and more reliable.

Description

technical field [0001] The invention belongs to the technical field of hand-held washing machines, and in particular relates to a hand-held high-pressure washing machine with a silent water-cooled high-efficiency motor. Background technique [0002] A high-pressure cleaner is a device that uses water or a mixture of detergents as the cleaning medium and uses high-pressure water to clean the surface of objects. The high-pressure cleaner can be used to clean cars, courtyards, floors, railings, doors and windows, etc. It is relatively easy to use. Efficient and convenient, its main components are a spray gun and a host, the host includes a motor, a pump and a battery or an external power cord, the spray gun and the host are connected through a water inlet pipe, the spray gun is responsible for forming different shapes of water flow according to actual needs, and the host is responsible for water from the Municipal tap water or buckets are converted into high-pressure water flow...

AI Technical Summary

Problems solved by technology

Patent CN205570600U discloses only a low-pressure cleaning machine, not a hand-held high-pressure cleaning machine. Its working pressure cannot reach or exceed the 2.5MPa pressure required by the high-pressure cleaning machine. CN205570600U does not disclose any motor cooling and waterproof sealing solutions. What is provided is not a hand-held high-pressure washer either. From the accompanying drawings of the CN205570600U manual, we can see the existence of cooling air vents at the tail of the motor. Vents must be left at the corresponding positions on the casing, and its waterproof level cannot meet the waterproof level requirements of hand-held high-pressure cleaners.

[0005] As a hand-held washing machine, the high-speed operation of the motor pump will bring about a sharp rise in temperature, which will not only be transmitted to the user through the casing, which will seriously affect the comfort of use, but also affect the operating efficiency and life of the machine

In addition, the noise generated by the open casing and the motor fan also directly affects the user's operating comfort

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