Improved high-pressure cleaning machine

Abstract

The utility model discloses an improved high-pressure cleaning machine, and relates to the technical field of cleaning machines, the improved high-pressure cleaning machine comprises a high-pressure plunger pump, a driver, a potentiometer and a permanent magnet brushless motor, the high-pressure plunger pump is respectively connected with a water source and a high-pressure water gun, and the high-pressure water gun sprays high-pressure water after the water source passes through the high-pressure plunger pump; the permanent magnet brushless motor comprises a motor body, a stator mechanism and a rotor mechanism with a Hall sensor, the stator mechanism is arranged on the motor body, a rotor comprises a main shaft, a rotor core arranged on the main shaft and a permanent magnet inserted into the rotor core, and the rotor is matched with a stator; the main shaft is connected to the high-pressure plunger pump, and the driver is electrically connected with the permanent magnet brushless motor and the potentiometer. And the driver performs speed regulation driving control on the permanent magnet brushless motor according to the output resistance value of the potentiometer. A permanent magnet brushless motor and a driver are adopted, and wide-range speed regulation control is performed on the rotating speed of the permanent magnet brushless motor by controlling the output of a potentiometer, so that the wide-range ejection speed of water flow of the high-pressure water gun is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning machines, in particular to an improved high-pressure cleaning machine. Background Art

[0002] Similar high pressure cleaning machines in the prior art are disclosed by the following patent documents.

[0003] Chinese invention patent specification CN 104131958 A (published on November 5, 2014) discloses a high-pressure cleaning machine, which can reduce the thickness of the chamber layer by adopting a structure that does not require a partition wall to be set in the chamber, thereby increasing the flow rate of cooling water flowing in the chamber and achieving an improved cooling effect. The high-pressure cleaning machine includes: an electric motor as a driving source; a pump mechanism driven by the electric motor to pressurize the supplied water to generate high-pressure water, a chamber for cooling water for cooling the electric motor is formed into a roughly cylindrical shape in a manner surrounding the outer periphery of the electric motor, and a water inlet for introducing cooling water into the chamber and a water outlet for draining cooling water are arranged to face the same horizontal direction in the tangential direction of the roughly cylindrical chamber.

[0004] However, because the electric motor in the high-pressure cleaning machine disclosed above cannot be adjusted at will, the water ejection speed of the high-pressure water gun cannot be adjusted at will.

[0005] In addition, the electric motor in the high-pressure cleaning machine disclosed above is fixed to the base by screws, so the disassembly and assembly of the electric motor is also extremely inconvenient. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an improved high-pressure cleaning machine to overcome the defect in the prior art that the electric motor of the high-pressure cleaning machine cannot be adjusted at will, resulting in that the water ejection speed of the high-pressure water gun cannot be adjusted at will.

[0007] In order to solve the above technical problems, the improved high-pressure cleaning machine of the utility model includes a high-pressure plunger pump, a driver, a potentiometer, and a permanent magnet brushless motor. The high-pressure plunger pump is respectively connected to a water source and a high-pressure water gun, and the water source passes through the high-pressure plunger pump and then sprays high-pressure water by the high-pressure water gun; the permanent magnet brushless motor includes a fuselage, a stator mechanism, and a rotor mechanism with a Hall sensor, the stator mechanism is arranged on the fuselage, the rotor includes a main shaft, a rotor core arranged on the main shaft, a permanent magnet inserted into the rotor core, and the rotor is matched with the stator; the main shaft is connected to the high-pressure plunger pump, and the driver is electrically connected to the permanent magnet brushless motor and the potentiometer respectively; the driver performs speed regulation and drive control on the permanent magnet brushless motor according to the output resistance value of the potentiometer.

[0008] Wherein, the driver is electrically connected to a power source.

[0009] Wherein, the power supply is an AC power supply or a DC power supply.

[0010] The rotor core is provided with a plurality of arc-shaped through slots, and the arc-shaped permanent magnets are inserted into the arc-shaped through slots.

[0011] Wherein, the arc-shaped through groove comprises an arc-shaped through opening, and barbs are symmetrically arranged at both ends of the arc-shaped through opening.

[0012] Among them, it also includes a machine base with a seat plate groove, the seat plate of the permanent magnet brushless motor is just adapted to the seat plate groove, the left accommodating groove and the right accommodating groove are respectively provided on both sides of the seat plate, and the left accommodating groove or the right accommodating groove is provided with an elastic member, a push plate, and a latch, one end of the elastic member is connected to the seat plate, and the other end is connected to the push plate, the push plate is connected to the latch, and the latch is inserted in the first hole of the seat plate and the second hole of the machine base in sequence.

[0013] Wherein, the elastic member is a spring.

[0014] Wherein, the left accommodating groove and the right accommodating groove are symmetrically arranged.

[0015] Wherein, the push plate height is greater than the groove depth of the left accommodating groove and the right accommodating groove.

[0016] Wherein, the push plate is in a convex shape.

[0017] Compared with the prior art, the utility model has the beneficial effect of using a permanent magnet brushless motor and a driver, and controlling the output of a potentiometer to control the rotation speed of the permanent magnet brushless motor in a wide range of speed regulation, thereby controlling the wide range of injection speed of the high-pressure water gun water flow. That is, when cleaning relatively clean objects, it is controlled at a relatively low speed, and when cleaning particularly dirty objects, it is controlled at a relatively high speed, and the injection speed of the water flow is controlled by different rotation speeds.

[0018] In addition, the permanent magnet brushless motor of the utility model is very convenient to be disassembled and assembled on the machine base, and can be completed manually without the aid of additional tools, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial three-dimensional structural schematic diagram of the improved high-pressure cleaning machine of the utility model;

[0020] Figure 2 It is a first partial cross-sectional structural schematic diagram of the improved high-pressure cleaning machine of the utility model;

[0021] Figure 3 It is a second partial cross-sectional structural schematic diagram of the improved high-pressure cleaning machine of the utility model;

[0022] Figure 4 yes Figure 3A schematic diagram of the enlarged structure of the middle part A;

[0023] Figure 5 It is a partial structural schematic diagram of the permanent magnet brushless motor of the utility model assembled on the base;

[0024] Figure 6 The utility model is a partial cross-sectional structural schematic diagram of a permanent magnet brushless motor assembled on a machine base. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] Embodiment 1

[0027] like Figure 1 , 2 As shown in Figures 3 and 4, the improved high-pressure cleaning machine of this embodiment includes a high-pressure plunger pump 1, a driver, a potentiometer, and a permanent magnet brushless motor 2. The permanent magnet brushless motor adopts an outer rotor structure with a Hall sensor and can directly drive the load. The high-pressure plunger pump is connected to a water source and a high-pressure water gun respectively. The water source passes through the high-pressure plunger pump and then sprays high-pressure water by the high-pressure water gun; the permanent magnet brushless motor includes a body 3, a stator mechanism 4, and a rotor mechanism 5 with a Hall sensor. The stator mechanism is arranged on the body. The rotor includes a main shaft 6, a rotor core 7 arranged on the main shaft, and a permanent magnet inserted into the rotor core. The rotor core has a plurality of arc-shaped through grooves 9, and an arc-shaped permanent magnet 10 is inserted into the arc-shaped through groove. The arc-shaped through groove includes an arc-shaped through opening 11, and barbs 13 and 14 are symmetrically arranged at both ends of the arc-shaped through opening. After the permanent magnet is inserted into the arc-shaped through groove, the barbs clamp and fix the permanent magnet, and the rotor is matched with the stator. The spindle is connected to the high-pressure plunger pump, and the driver is electrically connected to the permanent magnet brushless motor and the potentiometer respectively. The driver controls the speed of the permanent magnet brushless motor according to the output resistance value of the potentiometer. That is, the driver supports the speed closed-loop control speed control method controlled by the potentiometer input. The high-pressure cleaning machine has two buttons for speed increase and speed decrease. The buttons send a speed control electrical signal to the potentiometer. After the potentiometer receives the speed control electrical signal, it outputs the corresponding resistance value input to the driver, thereby adjusting the speed of the permanent magnet brushless motor. Both the speed increase and speed decrease buttons support continuous pressing, so that the permanent magnet brushless motor can be continuously adjusted in speed. When the output resistance of the potentiometer is maximized by continuously pressing the speed increase button, the maximum speed of the permanent magnet brushless motor is reached. Continuously pressing the speed decrease button can make the permanent magnet brushless motor slow down to zero.

[0028] The driver of this embodiment is electrically connected to a power supply. The power supply is an AC power supply or a DC power supply. Specifically, when using an AC power supply, press the AC power switch to supply power to the permanent magnet brushless motor, and the permanent magnet brushless motor drives the high-pressure plunger pump to increase the pressure of low-pressure water to high-pressure water, and sprays it onto the surface of the object through a high-pressure water gun, thereby achieving the effect of cleaning the surface of the object. When using a DC power supply, press the DC power switch, and the inverter converts the direct current into 220V~230V / 50Hz alternating current to supply power to the permanent magnet brushless motor, and the permanent magnet brushless motor drives the high-pressure plunger pump to increase the pressure of low-pressure water to high-pressure water, and sprays it onto the surface of the object through a high-pressure water gun, thereby achieving the effect of cleaning the surface of the object.

[0029] This embodiment uses a permanent magnet brushless motor and a driver, and controls the output of a potentiometer to control the rotation speed of the permanent magnet brushless motor in a wide range, thereby controlling the wide range of the ejection speed of the high-pressure water gun. That is, when cleaning relatively clean items, it is controlled at a relatively low speed, and when cleaning particularly dirty items, it is controlled at a relatively high speed, and the ejection speed of the water flow is controlled by different rotation speeds.

[0030] Embodiment 2

[0031] like Figure 5 , 6 As shown, the second embodiment is basically the same as the first embodiment, except that the present embodiment further includes a base 15 with a base plate groove 8, the base plate 16 of the permanent magnet brushless motor is just adapted to the base plate groove, the base plate is provided with a left accommodating groove 17 and a right accommodating groove 18 on both sides, the left accommodating groove and the right accommodating groove are symmetrically arranged, and the left accommodating groove or the right accommodating groove is provided with an elastic member 19, a push plate 20, and a latch 21, the height of the push plate is greater than the groove depth of the left accommodating groove and the right accommodating groove, and the shape of the push plate is a convex shape. One end of the elastic member is connected to the base plate, and the other end is connected to the push plate, the push plate is connected to the latch, and the latch is inserted in the first hole 22 of the base plate and the second hole 23 of the base in sequence. The elastic member of the present embodiment is a spring.

[0032] When assembling the embodiment, the push plate is pushed to allow the latch to retreat to the first hole of the base plate, and then the base plate of the permanent magnet brushless motor is placed in the base plate slot of the base, the push plate is released, and the latch is inserted into the second hole of the base to complete the assembly. When disassembling, the push plate is pushed to allow the latch to retreat to the first hole of the base plate.

[0033] The permanent magnet brushless motor of this embodiment is very convenient to disassemble and assemble on the base, and can be done manually without the aid of additional tools, thereby improving production efficiency.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An improved high-pressure cleaning machine, comprising a high-pressure plunger pump, a driver, a potentiometer, and a permanent magnet brushless motor, wherein the high-pressure plunger pump is connected to a water source and a high-pressure water gun respectively, and the water source passes through the high-pressure plunger pump and then sprays high-pressure water from the high-pressure water gun; Features: The permanent magnet brushless motor includes a body, a stator mechanism, and a rotor mechanism with a Hall sensor. The stator mechanism is arranged on the body. The rotor includes a main shaft, a rotor core arranged on the main shaft, and a permanent magnet inserted into the rotor core. The rotor is matched with the stator; the main shaft is connected to a high-pressure plunger pump, and the driver is electrically connected to the permanent magnet brushless motor and the potentiometer respectively; the driver performs speed regulation and drive control on the permanent magnet brushless motor according to the output resistance value of the potentiometer.

2. The improved high pressure cleaning machine according to claim 1, characterized in that: The driver is electrically connected to a power source.

3. The improved high pressure cleaning machine according to claim 2, characterized in that: The power source is an AC power source or a DC power source.

4. The improved high pressure cleaning machine according to claim 1, characterized in that: The rotor core is provided with a plurality of arc-shaped through slots, and the arc-shaped permanent magnets are inserted into the arc-shaped through slots.

5. The improved high pressure cleaning machine according to claim 4, characterized in that: The arc-shaped through groove comprises an arc-shaped through opening, and barbs are symmetrically arranged at two ends of the arc-shaped through opening.

6. The improved high pressure cleaning machine according to claim 1, characterized in that: It also includes a machine base with a seat plate groove, the seat plate of the permanent magnet brushless motor is just adapted to the seat plate groove, the left accommodating groove and the right accommodating groove are respectively provided on both sides of the seat plate, and the left accommodating groove or the right accommodating groove is provided with an elastic member, a push plate, and a latch, one end of the elastic member is connected to the seat plate, and the other end is connected to the push plate, the push plate is connected to the latch, and the latch is inserted in the first hole of the seat plate and the second hole of the machine base in sequence.

7. The improved high pressure cleaning machine according to claim 6, characterized in that: The elastic member is a spring.

8. The improved high pressure cleaning machine according to claim 7, characterized in that: The left accommodating groove and the right accommodating groove are symmetrically arranged.

9. The improved high-pressure cleaning machine according to claim 8, characterized in that: The push plate height is greater than the groove depths of the left accommodating groove and the right accommodating groove.

10. The improved high pressure cleaning machine according to claim 9, characterized in that: The push plate is in a convex shape.

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