阅读说明：本技术 一种内置水冷系统的无刷磁力驱动潜水泵 (Brushless magnetic force drive immersible pump of built-in water cooling system ) 是由 卢培胤 于 2020-07-01 设计创作，主要内容包括：一种内置水冷系统的无刷磁力驱动潜水泵,包括泵体、泵盖、进水罩壳、上端盖、下端盖、电机轴、转子、定子、叶轮和出水管,泵体上设有转子腔、定子腔、泵压腔、泵进水口和出水管路；所述壳体还包括设在定子腔内的二个纵向水通道和设在底板上的上端盖的安装孔,纵向水通道的上部与转子腔的上部连通；所述上端盖上设有进水孔；所述下端盖与转子腔和纵向水通道的上端扣合并液密封,转子和转子腔之间有水流换热间隙；水从纵向水通道底端进入,流经纵向水通道、上端盖上的进水孔、转子腔,再从转子腔的底端排出流入泵压腔构成水冷系统。流动的水吸收绕线圈上的热量和转子上的热量,有效降低绕线圈和转子的转轴温升,延长潜水泵的使用寿命。(A brushless magnetic force driving submersible pump with a built-in water cooling system comprises a pump body, a pump cover, a water inlet cover shell, an upper end cover, a lower end cover, a motor shaft, a rotor, a stator, an impeller and a water outlet pipe, wherein a rotor cavity, a stator cavity, a pump pressure cavity, a pump water inlet and a water outlet pipeline are arranged on the pump body; the shell also comprises two longitudinal water channels arranged in the stator cavity and a mounting hole of an upper end cover arranged on the bottom plate, and the upper parts of the longitudinal water channels are communicated with the upper part of the rotor cavity; a water inlet hole is formed in the upper end cover; the lower end cover is buckled with the upper ends of the rotor cavity and the longitudinal water channel and is in liquid seal, and a water flow heat exchange gap is formed between the rotor and the rotor cavity; water enters from the bottom end of the longitudinal water channel, flows through the longitudinal water channel, the water inlet hole in the upper end cover and the rotor cavity, is discharged from the bottom end of the rotor cavity and flows into the pump pumping cavity to form a water cooling system. The flowing water absorbs the heat on the winding coil and the heat on the rotor, thereby effectively reducing the temperature rise of the rotating shaft of the winding coil and the rotor and prolonging the service life of the submersible pump.)

1. A brushless magnetic force driving submersible pump with a built-in water cooling system comprises a pump body, a pump cover, a water inlet cover shell, an upper end cover, a lower end cover, a motor shaft, a rotor, a stator, an impeller and a water outlet pipe, wherein the rotor, the stator, the impeller and the water outlet pipe are arranged on the motor shaft; the method is characterized in that: the shell also comprises two longitudinal water channels arranged in the stator cavity, the upper parts of the longitudinal water channels are communicated with the upper part of the rotor cavity, and the lower ends of the rotor cavity and the longitudinal water channels are communicated with the pumping pressure cavity;

the lower end cover is provided with a water inlet, and the bottom end of the longitudinal water channel and the bottom end of the rotor cavity are respectively communicated with the pumping pressure cavity;

the upper end cover is buckled with the upper ends of the rotor cavity and the longitudinal water channel and is in liquid seal, and a water flow heat exchange gap is formed between the rotor and the rotor cavity; the lower end cover is arranged on the water inlet of the pump; the motor shaft is pivoted with the upper end cover and the lower end cover, the impeller is arranged on the motor shaft in the pumping pressure cavity, and the longitudinal water channel, the gap between the rotor and the rotor cavity and the pumping pressure cavity form the built-in water cooling system.

2. The brushless magnetic force driven submersible pump with the built-in water cooling system according to claim 1, characterized in that: the iron core comprises a frame body part with an opening at one end and two winding coil bases arranged at the opening end of the frame body part, and the free ends of the winding coil bases are attached to the rotor cavity.

3. The brushless magnetically-driven submersible pump with built-in water cooling system according to claim 2, wherein: the straight line of the winding coil seat is perpendicular to the straight line of the longitudinal water channel.

4. The brushless magnetic force driven submersible pump with the built-in water cooling system according to claim 1, characterized in that: the upper end of the rotor cavity is provided with a shaft seat, and an axial water guide hole is formed in the shaft seat;

the upper end cover comprises a cover plate part, an interface part and a motor shaft seat arranged on the cover plate part;

the interface is inserted into the rotor cavity and the longitudinal water channel, and the motor shaft seat is in butt joint with the shaft seat.

5. The brushless magnetic force driven submersible pump with built-in water cooling system according to claim 1, 2, 3 or 4, characterized in that: the lower end cover comprises a front motor shaft seat arranged in the center, a water inlet hole surrounding the motor shaft seat and at least three guide clasps;

a guide sliding hole is formed in the wall plate of the water inlet housing;

also comprises a circular valve core and an operating plate, the center of the circular valve core is provided with a shaft hole and a water guide hole surrounding the shaft hole,

the circular valve core is attached to the upper end cover, the motor shaft is in running fit with the front motor shaft seat and the shaft hole, the circular valve core is in sliding fit with the guide clasp, and the operating plate is in sliding fit with the guide sliding hole.

Technical Field

The invention relates to a brushless magnetic force driven submersible pump, in particular to a brushless magnetic force driven submersible pump with a built-in water cooling system.

Background

At present, the brushless magnetic force driving submersible pump in the prior art comprises a pump body, a pump cover, a water inlet housing, an upper end cover, a lower end cover, a rotor, a stator, an impeller, a water outlet pipe and a control circuit board; a rotor cavity, a stator cavity and a water outlet pipeline are arranged in the pump body, the rotor comprises a ceramic rotating shaft and a magnetic core, and the impeller is arranged at one end of the ceramic rotating shaft. The stator comprises an iron core and a winding coil, the upper end cover and the lower end cover are buckled with the two ends of the rotor cavity, the motor shaft is connected with bearings on the upper end cover and the lower end cover, the stator and the circuit board are encapsulated by epoxy resin, the pump cover is connected with the upper end of the pump body to seal the stator and the circuit board, the water inlet housing is buckled with the lower end of the shell, the water outlet pipe is fixed on the pump cover, and the water outlet pipe is communicated with the water outlet pipeline. There are problems: when the submersible pump works, the winding coil of the stator can generate a large amount of heat which is a heating source of the submersible pump; however, because the winding coil is arranged in the middle inner cavity of the sealed pump body, heat on the winding coil cannot be emitted, and a heat island effect occurs, and the submersible pump is easily burnt out due to overhigh temperature rise of the winding coil; meanwhile, in order to work continuously for a long time, the submersible pump reduces the generation of heat on the winding coil by reducing power, and the actual working power of the submersible pump cannot reach the rated power. In addition, the submersible pump needs to continuously run for a long time, so that the surface abrasion of the ceramic rotating shaft is accelerated due to overhigh temperature rise of the ceramic rotating shaft, and the rotor is damaged in advance. Therefore, the brushless submersible pump is poor in overall heat dissipation effect and short in service life.

Disclosure of Invention

The purpose of the invention is: the brushless magnetic force driving submersible pump with the built-in water cooling system has the advantages that water cooling treatment is carried out on the winding coil and the rotor of the stator, the submersible pump is good in heat dissipation performance, and the service life of the submersible pump is effectively prolonged.

The invention is realized by the following steps: a brushless magnetic force driving submersible pump with a built-in water cooling system comprises a pump body, a pump cover, a water inlet cover shell, an upper end cover, a lower end cover, a motor shaft, a rotor, a stator, an impeller and a water outlet pipe, wherein the rotor, the stator, the impeller and the water outlet pipe are arranged on the motor shaft; it is characterized in that: the shell also comprises two longitudinal water channels arranged in the stator cavity, the upper parts of the longitudinal water channels are communicated with the upper part of the rotor cavity, and the lower ends of the rotor cavity and the longitudinal water channels are communicated with the pumping pressure cavity;

a water inlet hole is formed in the lower end cover;

the upper end cover is buckled with the upper ends of the rotor cavity and the longitudinal water channel and is in liquid seal, and a water flow heat exchange gap is formed between the rotor and the rotor cavity; the lower end cover is arranged on the water inlet of the pump; the motor shaft is pivoted with the upper end cover and the lower end cover, the impeller is arranged on the motor shaft in the pumping pressure cavity, and the longitudinal water channel, the gap between the rotor and the rotor cavity and the pumping pressure cavity form the built-in water cooling system.

Preferably: the iron core comprises a frame body part with an opening at one end and two winding coil bases arranged at the opening end of the frame body part, and the free ends of the winding coil bases are attached to the rotor cavity.

Preferably: the straight line of the winding coil seat is perpendicular to the straight line of the longitudinal water channel.

Preferably: the upper end of the rotor cavity is provided with a shaft seat, and an axial water guide hole is formed in the shaft seat;

the upper end cover comprises a cover plate part, an interface part and a motor shaft seat arranged on the cover plate part;

the interface is inserted into the rotor cavity and the longitudinal water channel, and the motor shaft seat is in butt joint with the shaft seat.

Preferably: the lower end cover comprises a front motor shaft seat arranged in the center, a water inlet hole surrounding the motor shaft seat and at least three guide clasps;

a guide sliding hole is formed in the wall plate of the water inlet housing;

also comprises a circular valve core and an operating plate, the center of the circular valve core is provided with a shaft hole and a water guide hole surrounding the shaft hole,

the circular valve core is attached to the upper end cover, the motor shaft is in running fit with the front motor shaft seat and the shaft hole, the circular valve core is in sliding fit with the guide clasp, and the operating plate is in sliding fit with the guide sliding hole.

The invention relates to a brushless magnetic force driving submersible pump with a built-in water cooling system, which adopts the structure, a rotor drives a impeller to rotate to do work, the water pressure at the periphery of a pump pressure cavity and the impeller rises, water flows in from the bottom ends of longitudinal water channels at the left side and the right side, vertically flows upwards along the longitudinal water channels to reach the top ends of the longitudinal water channels, then flows out from a water inlet hole arranged on an upper end cover to enter a gap between the rotor cavity and the rotor, and then flows out from the bottom of the rotor cavity, so that a water cooling heat dissipation system is formed, a winding coil of a stator is tightly attached or tightly attached to the outer side of the pipe wall of the longitudinal water channels, the flowing water absorbs heat conducted on the winding coil to dissipate heat in time, the temperature rise of the winding coil is effectively reduced. When the coil on the rotor is radiating, the flowing water absorbs the heat on the ceramic rotating shaft on the rotor, the too high temperature rise is reduced to cause the too fast abrasion, and the service life of the submersible pump is effectively prolonged.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a view a-a of fig. 1.

Fig. 3 is a view B-B of fig. 1.

Fig. 4 is one of exploded perspective views of the present invention.

Fig. 5 is a second exploded perspective view of the present invention.

Fig. 6 is a partially enlarged view of fig. 4.

Fig. 7 is a perspective view of the present invention.

Fig. 8 is a third exploded perspective view of the present invention.

Fig. 9 is a fourth exploded perspective view of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the brushless magnetic driving submersible pump with a built-in water cooling system comprises a pump body 1, a pump cover 2, a water inlet cover 3, a lower end cover 4, an upper end cover 5, a motor shaft 6, a rotor 61 arranged on the motor shaft, a stator 7, an impeller 8 and a water outlet pipe 9, wherein the pump body 1 is provided with a rotor cavity 11, a stator cavity 12, a pump pumping cavity 16, a pump water inlet 15 and a water outlet pipeline 13, the stator 7 comprises an iron core 71 and a winding coil 72, and the motor shaft 6 is in running fit with the lower end cover 4 and the upper end cover 5;

the housing 1 further comprises two longitudinal water channels 14 arranged in the stator cavity 12, as shown in fig. 1 and 5, the upper parts of the longitudinal water channels 14 are communicated with the upper part of the rotor cavity 12, and the lower ends are communicated with the pumping cavity 16; the lower end of the rotor cavity 11 is communicated with the pumping cavity 16;

a water inlet hole is formed in the lower end cover 4;

the upper end cover 5 is buckled with the upper ends of the rotor cavity 11 and the longitudinal water channel 14 and is in liquid seal; a water flow heat exchange gap is formed between the rotor 61 and the rotor cavity 11; the lower end cover 4 is arranged on the water inlet 15 of the pump; the motor shaft 6 is pivoted with the lower end cover 4 and the upper end cover 5, the impeller 8 is arranged on the motor shaft 6 in the pumping pressure cavity 16 of the pump body 1, and the longitudinal water channel 14, the gap between the rotor cavity 11 and the rotor 61 and the pumping pressure cavity 16 form a water cooling system; the impeller 8 rotates and as shown in fig. 1, water enters the gap between the rotor chamber 11 and the rotor 61 through the pumping chamber 16 and the longitudinal water passage 14, and then returns from the gap between the rotor chamber 11 and the rotor 61 to the pumping chamber 16.

The iron core 71 includes a frame 711 having an opening at one end, and two coil holders 712 disposed at the opening end of the frame, and the free end of the coil holder 712 is attached to the rotor cavity 11.

As shown in fig. 2, the straight line of the coil holder 712 is perpendicular to the straight line of the longitudinal water passage 14. With such a structure, the epoxy resin adhesive fixing the winding coil 72 in the stator cavity 12 exchanges heat with one longitudinal water channel 14; the rotor chamber exchanges heat with the coil form 712 and the closed end of the core 71 exchanges heat with a longitudinal water channel 14, reducing the temperature rise of the core 7.

The upper end of the rotor cavity 11 is provided with a shaft seat 111, and the shaft seat 111 is provided with an axial water guide hole 112;

the upper end cover 5 comprises a cover plate part 51, a connecting part 52 and a motor shaft seat 511 arranged on the cover plate part 51;

the interface 52 is inserted into the rotor cavity 11 and the longitudinal water passage 14, and the motor shaft seat 511 is butted with the shaft seat 111.

As a further improvement of the invention, the lower end cover 4 comprises a front motor shaft seat 41 arranged in the center, a water inlet 42 surrounding the motor shaft seat and at least three guide clasps 43;

a guide sliding hole 31 is formed in the wall plate of the water inlet housing 3;

also comprises a circular valve core 101 and an operating plate 102, the center of the circular valve core 101 is provided with a shaft hole 1011 and a water guide hole 1012 surrounding the shaft hole,

the circular valve core 101 is attached to the lower end cover 4, the motor shaft 6 is in running fit with the front motor shaft seat 41 and the shaft hole 1011, the circular valve core 101 is in sliding fit with the guide clasp 43, and the operating plate 102 is in sliding fit with the guide sliding hole 31. The water guide holes 1012 and the water inlet holes 42 are the same in number, and the water inlet amount is adjusted by rotating the circular valve core 101.

What has been described above is merely a preferred embodiment of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the principle of the present invention, and this is considered to be within the scope of the present invention.