WO2023060842A1 - 一种高效散热的双流道水泵 - Google Patents

一种高效散热的双流道水泵 Download PDF

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Publication number
WO2023060842A1
WO2023060842A1 PCT/CN2022/082235 CN2022082235W WO2023060842A1 WO 2023060842 A1 WO2023060842 A1 WO 2023060842A1 CN 2022082235 W CN2022082235 W CN 2022082235W WO 2023060842 A1 WO2023060842 A1 WO 2023060842A1
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WO
WIPO (PCT)
Prior art keywords
water pump
stator
water
space
channel
Prior art date
Application number
PCT/CN2022/082235
Other languages
English (en)
French (fr)
Inventor
林荣
颜成刚
Original Assignee
利欧集团浙江泵业有限公司
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Filing date
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Application filed by 利欧集团浙江泵业有限公司 filed Critical 利欧集团浙江泵业有限公司
Publication of WO2023060842A1 publication Critical patent/WO2023060842A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium

Definitions

  • the present application relates to the technical field of canned pumps, in particular to a dual-channel water pump with high heat dissipation.
  • the pump body and the motor of the canned pump are connected together, and the rotor of the motor and the impeller of the pump body are fixed on the same shaft.
  • the cooling channel is set outside the motor, and the cooling effect is not good, and the cooling liquid of the canned pump is set separately from the fluid to be pumped, which is not conducive to the integration of the water pump , increasing the pump cost.
  • the patent number CN2016214699800 was authorized and announced on August 8, 2017.
  • the application discloses a water pump with an inner flow channel, including a pump body and a motor, and an end cover is fixed at the left end of the motor , the end cover is fixedly connected with the pump body, a cavity is formed between the pump body and the inside of the end cover, a flow channel for water flow is provided on the inner wall of the cavity, and the flow channel communicates with the cavity.
  • the flow channel is arranged on the pump body and the end cover, which can only complete the cooling of the front end of the motor, and the overall cooling efficiency of the motor is poor.
  • the present invention provides a high-efficiency heat dissipation double-channel water pump, which can provide a first flow channel corresponding to the motor stator and a second flow channel corresponding to the gap between the motor stator and the motor rotor.
  • the first flow channel and the second flow channel realize the integrated heat dissipation of the motor, and there is no need to set a cooling flow channel outside the motor;
  • the stator assembly is supported by the stator support to improve stability, and the eddy current is formed through the stator support to improve cooling efficiency.
  • a high-efficiency heat-dissipating double-channel water pump is characterized in that it includes a water pump outer cylinder, a stator assembly, a rotor assembly, and a guide casing;
  • the stator assembly is airtightly arranged in the water pump outer cylinder, the rotor assembly is rotatably arranged in the stator assembly, the water pump outer cylinder and the outer wall of the stator assembly are enclosed to form a first space, and the outer wall of the rotor assembly and the inner wall of the stator assembly are enclosed to form a second space;
  • the guide shell is provided with an impeller connected to the rotor assembly, and the guide shell is provided with an installation cavity for matching the impeller.
  • the back side of the diversion shell facing away from the installation cavity is provided with a baffle surface matching the vortex groove;
  • the interior of the diversion shell is provided with permeable holes matching the rotor assembly, and the permeable holes are connected to the front and rear ends of the diversion shell;
  • the water inlet end of the water pump, the vortex groove, the first space and the water outlet end of the water pump form a first flow channel
  • the water inlet end of the water pump, the water permeable hole, the second space and the water outlet end of the water pump form a second flow channel
  • the outside of the stator assembly is provided with a stator bracket, the inner side of the stator bracket is attached to the outer wall of the stator assembly, and several cooling grooves are provided on the stator bracket; the two ends of the stator bracket are respectively provided with a baffle ring, and the baffle ring faces the outer end of the stator bracket.
  • One side is provided with several sections of baffle grooves.
  • the first flow channel can lead the pump water from the vortex groove to the first space to complete the heat dissipation outside the stator
  • the second flow channel can lead the water in the pump to the second space through the water hole to complete the stator and rotor.
  • the heat dissipation between the two parts is high, and the heat dissipation efficiency is high.
  • the setting of the first flow channel and the second flow channel can not only meet the delivery of the fluid, but also ensure the cooling of the stator assembly, rotor assembly and bearings.
  • the way of cooling can also ensure the normal pumping of the fluid, so it has the characteristics of simple structure, convenient use, and good economic benefits;
  • the setting of the diversion shell completes the diversion of the water body, and the permeable holes and vortex grooves correspond to the first flow channel respectively and the second flow channel to ensure sufficient cooling of the water body in the two sets of flow channels to ensure cooling efficiency;
  • the stator assembly is supported by the stator bracket to improve stability, and the eddy current is formed through the stator bracket to improve cooling efficiency.
  • the water pump also includes a rear end cover, and a fixed seat that matches the rotating shaft is provided in the outer cylinder of the water pump; several connecting rods are provided between the fixed seat and the rear end cover, and a matching connection is provided on the baffle ring of the stator bracket.
  • the limit hole of the rod, the stator support is provided with the limit cylindrical surface of the connecting rod between the cooling slots.
  • the stator assembly includes a stator outer cylinder, a stator inner cylinder, a stator winding and a closed end piece;
  • stator inner cylinder and the stator outer cylinder are arranged concentrically to form an accommodating space for accommodating the stator winding;
  • the airtight end piece is respectively connected with the stator outer cylinder and the stator inner cylinder to seal the accommodation space;
  • the inner wall and both ends of the inner cylinder of the stator are respectively provided with insulating paper.
  • stator winding The installation and sealing of the stator winding are completed through the stator outer cylinder and the stator inner cylinder to ensure the insulation of the stator assembly and the reliability of the cooling flow channel in the motor.
  • the rotor assembly includes a rotating shaft and a rotor on the rotating shaft, and an insulating layer is provided on the outer side of the rotor;
  • the fixed seat and the rotating shaft are connected by a bearing, the inner peripheral side of the bearing is provided with a water passing groove, and the end surface of the bearing is provided with a water separating groove.
  • the water passage completes the radial water flow, and the water passage serves as a channel to further ensure the water passing capacity of the second flow channel, thereby not only ensuring the cooling performance of the second flow channel, but also completing the heat dissipation of the bearing position and improving the heat dissipation capacity of the motor ;
  • the bearing and the rotating shaft rotate together, and the setting of the water dividing tank can facilitate the diffusion of the water body.
  • the water body can be quickly dispersed from the water tank to the second space or the water in the second space can be quickly drawn to the water tank, and can form a negative pressure, which is beneficial to the flow and heat dissipation of the water body in the second flow channel.
  • the water passing groove is linear, and the water passing groove is parallel to the axis of the bearing.
  • the shape of the water channel is linear, the cross-sectional shape of the water channel is semicircular, the axis of the water channel is located on the tangent surface of the inner peripheral side of the bearing, the axis of the water channel and the axis of the bearing are inclined, and the axis of the water channel and The intersection point on the inner peripheral side of the bearing is located in the middle of the bearing axial direction.
  • the rear side of the guide shell is provided with a baffle surface matching the vortex groove
  • the plurality of deflectors are arranged in a circular array around the axis of the installation cavity;
  • One end of the deflector facing the installation cavity is provided with a deflector surface eccentrically arranged with the installation cavity; the other end of the deflector is provided with a downstream surface on the side facing away from the installation cavity; adjacent deflectors A vortex groove is formed between the guide surface and the downstream surface on the plate;
  • the guide surface is arranged tangentially to the surrounding wall of the installation cavity.
  • a vortex groove is formed between the deflector plates.
  • the structure and shape of the vortex groove is stable.
  • the flow is gathered through the deflector surface, and the water body is accelerated to flow out along the flow surface. Injection, the impact on the outer cylinder of the water pump is small, which can ensure the sealing and service life of the outer cylinder of the water pump; the water flowing out of the vortex groove will hit the baffle surface, and then flow, which is conducive to the formation of water at the baffle surface. Vortex, improve cooling effect.
  • the end of the downstream surface away from the bottom surface of the installation cavity is provided with a water retaining strip
  • the outer end of the bottom of the vortex groove is provided with a diversion slope inclined to the bottom surface of the installation cavity
  • the water retaining strip is provided with a matching diversion slope The mating slope.
  • an inclined guide channel to the outside of the installation cavity is formed.
  • the tangent surface of the shell is inclined to realize the oblique collision between the water body and the baffle surface, and it is easier to form a swirling vortex, which is conducive to the distribution of the water body to the first space, avoiding laminar cooling gradients, and improving the first space corresponding to the stator. cooling efficiency.
  • the impeller includes a front wheel cover and a rear wheel body, the rear wheel body is provided with several vortex plates arranged in a circumferential array around the axis of the rear wheel body, the front wheel cover is fitted and fixed on the outer end of the vortex plate, and the front wheel cover A water inlet hole is provided on the axis, and a mounting hole connected with the rotating shaft is provided on the axis of the rear wheel body.
  • the water inlet hole enters the water, the front wheel cover and the rear wheel body are sealed and cooperate with the vortex plate to form the water diversion from the axial direction to the circumferential direction, so as to realize the unidirectional drive of the water flow.
  • a considerable amount of water can be introduced into the diversion shell Facilitate the reliability of diversion and diversion of diversion shell.
  • the rear end cover includes a rear disc body and a rear end body connected to each other;
  • the rear end body is a cylindrical tubular structure, and the rear disc body is provided with a transitional space with a U-shaped cross-section; one side of the middle part of the transitional space It communicates with the second space, and the edge of the transition space communicates with the first space;
  • the transition space communicates with the rear end body;
  • a pressure sensor is arranged in the transition space;
  • a flow sensor is arranged in the rear end body.
  • the pressure sensor and the flow sensor Through the cooperation of the pressure sensor and the flow sensor, the measurement of the smoothness of the first flow channel and the second flow channel is realized, ensuring that there is enough water to complete the cooling of the motor in the water pump, improving the cooling efficiency; and facilitating real-time maintenance.
  • the present invention has the following beneficial effects: it can provide the first flow channel corresponding to the motor stator and the second flow channel corresponding to the gap between the motor stator and the motor rotor, and realize the integrated heat dissipation of the motor through the first flow channel and the second flow channel without the need for
  • the cooling flow channel is set outside the motor, and the cooling efficiency is high; the setting of the diversion shell completes the diversion of the water body, and the permeable hole and the vortex groove correspond to the first flow channel and the second flow channel respectively, ensuring sufficient cooling of the water body in the two sets of flow channels , to ensure cooling efficiency.
  • Fig. 1 is a structural schematic diagram of the present invention.
  • Figure 2 is an exploded view of the present invention.
  • Fig. 3 is a schematic view of the side structure of the guide shell in the present invention.
  • Fig. 4 is a schematic diagram of the front structure of the diversion shell in the present invention.
  • Fig. 5 is a schematic structural view of the stator bracket in the present invention.
  • Fig. 6 is a schematic structural view of the first embodiment of the bearing in the present invention.
  • Fig. 7 is a schematic structural view of the impeller in the present invention.
  • Fig. 8 is a schematic structural view of the second embodiment of the bearing in the present invention.
  • Fig. 9 is a front view of the bearing shown in Fig. 8 .
  • a high-efficiency heat dissipation double-channel water pump is characterized in that it includes a water pump outer cylinder 1 , a stator assembly 2 , a rotor assembly 3 and a guide casing 4 .
  • the shape of the water pump outer cylinder 1 is a cylindrical shape with both ends unobstructed.
  • the water pump also includes a front end cover 5, a front casing 6, a rear end cover 7 and a rear casing 8; along the axial direction of the water pump outer cylinder 1, the front end cover 5.
  • the front housing 6 is respectively fixed on the inner and outer walls of one end of the water pump outer cylinder 1, and the rear end cover 7 and the rear housing 8 are respectively fixed on the inner and outer walls of the other end of the pump outer cylinder.
  • the front end cover 5, the front casing 6, the rear end cover 7 and the rear casing 8 are all circular ring-disk structures.
  • the front end cover 5 includes a front plate body 9 and a front end body 10 connected to each other.
  • the front end body 10 is a cylindrical tubular structure, and the hollow channel of the tubular structure forms the inlet 11 of the water pump.
  • the front disc body 9 has a trumpet-shaped open inner cavity which runs through the entire front disc body 9 .
  • the lumen has a small end with a small cross-section and a large end with a large cross-section.
  • the opening at the small end communicates with the hollow channel of the front end cover 5 .
  • the large end is surrounded by the end surface of the flow guide shell 4 to form an installation cavity 46 .
  • the front cover 5 also includes a cylindrical extension opening 12 , and the extension opening 12 is located between the front body 10 and the front disc body 9 .
  • the diameter of the extension port 12 is smaller than that of the water inlet hole 44 , and the extension port 12 protrudes into the water inlet hole 44 to form an inner ring structure.
  • Such an inner ring structure has the effects of reducing the caliber, increasing the lift and preventing backflow.
  • the diameter of the extension port 12 may also be larger than that of the water inlet hole 44 , and the water inlet hole 44 extends into the extension port 12 to form an outer ring structure.
  • Such an outer ring structure has the effect of increasing the flow rate. This is just an example, not limiting.
  • the outer peripheral wall of the front end cover 5 is sleeved on the inner wall of the water pump outer cylinder 1, and the front end cover 5 and the inner wall of the water pump outer cylinder 1 are sealed by a seal.
  • the inner wall of the front shell 6 is sheathed on the outer wall of the outer cylinder 1 of the water pump.
  • the front end cover 5 and the front casing 6 jointly seal the end of the water pump outer cylinder 1 close to the water pump inlet 11 .
  • the front shell 6 is detachably connected to the front cover 5 through a fixed cover.
  • the outer peripheral wall of the rear end cover 7 is sleeved on the inner wall of the water pump outer cylinder 1, and the rear end cover 7 and the inner wall of the water pump outer cylinder 1 are sealed by a seal.
  • the inner wall of rear shell 8 is sleeved on the outer wall of water pump tubule 1.
  • the rear end cover 7 and the rear housing 8 jointly seal the end of the water pump tub 1 near the outlet of the water pump.
  • the end of the water pump outer cylinder 1 near the outlet of the water pump still has a radially extending bent portion. The bent portion fits into the narrow space formed by the rear end cover 7 and the rear housing 8 .
  • the front casing 6 is sheathed on the front body 10 of the front cover 5 , and the disk surface of the front casing 6 abuts against the front disk body 9 of the front cover 5 .
  • the outer ring surface of the fixed cover is clamped on the inner ring surface of the front housing 6 .
  • the inner wall of the fixed cover is provided with internal threads, and the outer wall of the front end body 10 is provided with external threads. The inner wall of the fixed cover is threadedly connected with the outer wall of the front end body 10, so that the front shell 6 is firmly connected with the front end cover 5.
  • the front end cover 5 and the rear end cover 7 are integrally formed by cast steel.
  • Such a setting method not only has the characteristics of good structural strength and good assembly reliability, but also better solves the problems of installation errors and leakage caused by the cooperation of multiple parts.
  • the rotor assembly 3 includes a rotating shaft 13 and a rotor 14 on the rotating shaft 13, the rotating shaft 13 is provided with a rotor sleeve 15, the rotor 14 is fixed on the rotor sleeve 15, and an insulating layer is provided on the outside of the rotor 14; the length of the rotor sleeve 15 is greater than that of the rotor Therefore, the second space 36 includes the space between the rotating shaft 13 and the stator inner cylinder 21 , the space between the rotating shaft 13 sleeve and the stator inner cylinder 21 , and the space between the rotor 14 and the stator inner cylinder 21 .
  • the end of the water pump outer cylinder 1 close to the impeller 40 is provided with a fixed seat 16 arranged at the outer end of the stator assembly 2; the fixed seat 16 and the rotating shaft 13 are connected by a bearing 17, and a bearing is also provided between the rotating shaft 13 and the rear end cover 7 17.
  • the fixed seat 16 is an annular structure, and one end of the fixed seat 16 is held against the front end cover 5 by the flow guide shell 4, and the other end of the fixed seat 16 is connected with the rear end cover 7 through the connecting rod 31; The way the rear end cover 7 is connected further strengthens the overall structural stability of the water pump.
  • the inner peripheral side of the bearing 17 is provided with a water passing groove 19 , and the end surface of the bearing 17 is provided with a water separating groove 18 .
  • the bearing 17 is a graphite bearing 17 made of graphite material.
  • the graphite bearing 17 is a bush structure, and the graphite bearing 17 cooperates with the rotating shaft 13 as a sliding bearing 17 .
  • the water passing groove 19 is arranged parallel to the axis of the bearing 17 , and the water separating groove 18 is arranged in the radial direction of the end face of the bearing 17 .
  • the shape of the water tank 19 is linear, and the cross-sectional shape of the water tank 19 is a semicircle.
  • the stator assembly 2 includes a stator outer cylinder 20, a stator inner cylinder 21, a stator winding 22 and a closed end piece 23; space; the airtight end piece 23 is respectively connected with the stator outer cylinder 20 and the stator inner cylinder 21 to seal the accommodating space; the inner wall and both ends of the stator inner cylinder 21 are respectively provided with insulating paper.
  • the closed end piece 23 includes a first end piece and a second end piece.
  • the first end piece is arranged on the side of the stator outer cylinder 20 and the stator inner cylinder 21 close to the water pump inlet 11 to seal the first end of the accommodation space;
  • the second end piece is arranged on the stator outer cylinder 20 and the stator inner cylinder 21 close to the water pump outlet One side to seal the second end of the containing space.
  • Such an arrangement not only ensures the airtightness of the stator winding 22 in the stator assembly 2 , but also facilitates the assembly and maintenance of the stator assembly 2 .
  • the first end piece is a ring-disk structure.
  • An annular first protrusion is provided on the end surface of the first end piece close to the stator outer cylinder 20 , and the first protrusion extends away from the canned pump inlet 11 .
  • the first protrusion and the outer edge of the first end piece form a first step, and the stator outer cylinder 20 is clamped on the first step.
  • the first protrusion and the inner edge of the first end piece form a second step, and the stator inner cylinder 21 is clamped on the second step.
  • the second end piece is also a ring-disk structure.
  • the outer edge of the second end piece is against the end surface of the stator outer cylinder 20 .
  • the inner edge of the second end piece is provided with a third step, and the stator inner cylinder 21 is clamped on the third step.
  • the outside of the stator assembly 2 is provided with a stator support 27, the inner side of the stator support 27 is attached to the outer wall of the stator assembly 2, and several cooling grooves 28 are provided on the stator support 27; the two ends of the stator support 27 are respectively provided with baffle rings 29, A side of the baffle ring 29 facing the outer end of the stator bracket 27 is provided with several sections of baffle grooves 30 .
  • Four connecting rods 31 are arranged between the fixed seat 16 and the rear end cover 7, and the stop ring 29 of the stator bracket 27 is provided with a limit hole 26 matching the connecting rod 31, and the cross section of the limit hole 26 is a semicircle .
  • the stator bracket 27 is provided with a limiting cylindrical surface 32 matching with a connecting rod 31 .
  • the cooling groove 28 is disposed between the limiting cylinders 32 .
  • Four sections of cooling grooves 28 are arranged between the two limiting cylinders 32 .
  • the cooling grooves 28 are in the shape of an arcuate rectangle, which enlarges the area where the stator assembly 2 is in direct contact with the water flow.
  • the stator assembly 2 is airtightly arranged in the water pump outer cylinder 1, the rotor assembly 3 is rotatably arranged in the stator assembly 2, the outer walls of the water pump outer cylinder 1 and the stator assembly 2 are enclosed to form a first space 33, and the rear end cover 7 includes interconnected rear Disc body 34 and rear end body 35;
  • Rear end body 35 is a cylindrical tubular structure, and rear disc body 34 is provided with a transitional space with a cross-sectional shape that is U-shaped; one side of the middle part of the transitional space communicates with the second space 36, The edge of the transition space communicates with the first space 33; the transition space communicates with the rear end body 35; a pressure sensor 37 is arranged in the transition space; a flow sensor 38 is arranged in the rear end body 35.
  • the outer wall of the rotor assembly 3 and the inner wall of the stator assembly 2 enclose a second space 36 ; the rotating shaft 13 is provided with a thrust piece 39 matching the rotor sleeve 15 , and the thrust piece 39 is located in the second space 36 .
  • the guide shell 4 is provided with an impeller 40 connected to the rotor assembly 3.
  • the impeller 40 includes a front wheel cover 41 and a rear wheel body 42.
  • the rear wheel body 42 is provided with five vortex plates 43 arranged in a circular array around the axis of the rear wheel body 42.
  • the front wheel cover 41 is fitted and fixed on the outer end of the vortex plate 43
  • the axis of the front wheel cover 41 is provided with a water inlet 44
  • the axis of the rear wheel body 42 is provided with a mounting hole 45 connected with the rotating shaft 13.
  • An installation cavity 46 matching the impeller 40 is provided inside the flow guide shell 4 , and the front end cover 5 and the flow guide shell 4 enclose the installation cavity 46 .
  • swirl grooves 47 are arranged on the surrounding wall of the diversion shell 4 corresponding to the installation cavity 46, and the swirl grooves 47 communicate with the front and rear ends of the diversion shell 4; specifically, four deflector plates are arranged on the peripheral wall of the installation cavity 46 48; four deflectors 48 are arranged in a circular array around the axis of the installation cavity 46; one end of the deflector 48 faces the side of the installation cavity 46 and is provided with a deflector surface 49 eccentrically arranged with the installation cavity 46; the deflector The other end of 48 is provided with a downstream surface 50 on the side facing away from the installation cavity 46; a vortex groove 47 is formed between the flow guide surface 49 on the adjacent deflector 48 and the downstream surface 50; the vortex groove 47 is provided with four Road; guide surface 49 and the surrounding wall of the installation cavity 46 are arranged tangentially.
  • One end of the downstream surface 50 away from the bottom surface of the installation cavity 46 is provided with a water retaining strip 51, and the outer end of the bottom of the vortex groove 47 is provided with a diversion slope 52 inclined to the bottom surface of the installation cavity 46, and the water retaining strip 51 is provided with Cooperate with the matching inclined surface 53 of the diversion inclined surface 52 .
  • the rear side of the diversion shell 4 is provided with a baffle surface 54 that matches the vortex groove 47; Backflow grooves 55 are formed; the outlet ends of the vortex grooves 47 correspond to the four backflow grooves 55 .
  • the inside of the diversion shell 4 is provided with a permeable hole 56 for matching the rotor assembly 3, and the permeable hole 56 communicates with the front and rear ends of the diversion shell 4; the water inlet end of the water pump, the vortex groove 47, the first space 33 and the water outlet end of the water pump form The first flow path; the water inlet end of the water pump, the water permeable hole 56 , the second space 36 and the water outlet end of the water pump form the second flow path.
  • the water pump also includes a control device arranged at the bottom of the outer cylinder 1 of the water pump.
  • the control device includes a cylindrical control box 57 , a plate-shaped bottom case 58 , an aluminum part 59 , a pressure plate 60 , a controller 61 and a power cord 62 .
  • the side of the control box 57 close to the water pump outer cylinder 1 is respectively clamped with the front end cover 5 and the rear end cover 7, and the side of the control box 57 away from the water pump outer cylinder 1 is threadedly connected with the front end cover 5 and the rear end cover 7 respectively by bolts.
  • the control box 57 is surrounded by the bottom case 58 to form a closed box-shaped space.
  • the aluminum part 59 is clamped in the control box 57 , and the aluminum part 59 is resisted and connected with the water pump outer cylinder 1 .
  • the aluminum part 59 here has a good conductive effect, so as to ensure the grounding effect of the water pump.
  • the aluminum part 59 also has an extension piece close to the bottom case 58 , and the controller 61 is arranged on the extension piece through the pressing plate 60 .
  • the controller 61 is glued on the pressing plate 60 by epoxy glue, and the whole of the two is fixed on the aluminum part 59 .
  • the controller 61 is directly fixed on the aluminum part 59, such an arrangement is more convenient to replace the controller 61, and the controller 61 is pasted on the outside of the water pump outer cylinder 1 through the pressure plate 60 and the aluminum part 59, The heat can be taken away directly through the water flow to achieve the cooling effect.
  • Both the flow sensor 38 and the pressure sensor 37 are connected to the controller 61 .
  • One end of the power cord 62 is connected to the controller 61 , and the other end of the power cord 62 extends away from the control box 57 .
  • the controller 61 here adopts a low-frequency hertz signal. Compared with the Bluetooth connection in the prior art, this method has the characteristics of good wall penetration and high sensitivity.
  • a high-efficiency heat dissipation double-channel water pump as shown in Figure 8 and Figure 9, the difference between Embodiment 2 and Embodiment 1 is that the shape of the water tank 19 is linear, and the cross-sectional shape of the water tank 19 is a semicircle Shape, the axis of the water groove 19 is located on the tangent surface of the inner peripheral side of the bearing 17, the axis of the water groove and the bearing axis are obliquely arranged, and the intersection of the axis of the water groove and the inner peripheral side of the bearing is located in the middle position of the bearing axial direction.
  • the water diversion groove 18 is located in the radial direction of the end face of the bearing 17 , chamfers are respectively provided at both ends of the bearing 17 , and the water diversion groove 18 is arranged along the end face of the bearing 17 and the chamfer in a broken line shape.
  • the stator assembly 2 When in use, the stator assembly 2 is energized, and the stator winding 22 generates a changing magnetic field to drive the rotor 14 to rotate. Because the rotor 14 is fixedly connected to the rotating shaft 13, when the rotor 14 rotates, the impeller 40 on the rotating shaft 13 rotates simultaneously. Specifically, after the water pump is started, the rotating shaft 13 drives the impeller 40 and the water to rotate at high speed, and the water undergoes centrifugal motion and is thrown to the outer edge of the impeller 40, so that the water flow starts to move.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种高效散热的双流道水泵包括：水泵外筒（1）、定子组件（2）、转子组件（3）和导流壳（4）；定子组件（2）密闭设置在水泵外筒（1）内，转子组件（3）转动设置在定子组件（2）内，水泵外筒（1）和定子组件（2）的外壁围合形成第一空间（33），转子组件（3）的外壁和定子组件（2）的内壁围合形成第二空间（36）；导流壳（4）内设有连接转子组件（3）的叶轮（48），导流壳（4）内设有配合叶轮（48）的安装腔（46），安装腔（46）的周壁上设有若干道涡旋槽（47），导流壳（4）内部设有配合转子组件（3）的透水孔（56）；水泵的进水端、涡旋槽（47）、第一空间（33）和水泵的出水端形成第一流道；水泵的进水端、透水孔（56）、第二空间（36）和水泵的出水端形成第二流道；定子组件（2）外侧设有定子支架（27），定子支架（27）上设有若干个冷却槽（28）。该水泵的电机冷却效率高。

Description

一种高效散热的双流道水泵 技术领域
本申请涉及屏蔽泵技术领域，尤其涉及一种高效散热的双流道水泵。
背景技术
屏蔽泵的泵体和电机连在一起，电动机的转子和泵体的叶轮固定在同一根转轴上。现有技术中虽然存在实现屏蔽泵电机降温的冷却流道，但是冷却流道却设置在电机外侧，冷却效果不佳，而且屏蔽泵的冷却液与需要泵送的流体单独设置，不利于水泵集成，增加了水泵成本。
例如，中国专利文献中，专利号CN2016214699800于2017年8月8日授权公告的发明专利，该申请案公开了一种带有内流道的水泵，包括泵体和电机，电机左端固定有端盖，端盖与泵体固定连接，泵体与端盖内部之间形成腔体，腔体内侧壁上设有供水流动的流道，流道与腔体连通。其不足之处在于：流道设置在泵体和端盖上，只能完成电机前端的冷却，电机整体的冷却效率差。
发明内容
基于现有技术中的上述不足，本发明提供了一种高效散热的双流道水泵，能够提供对应于电机定子的第一流道和对应于电机定子和电机转子之间的第二流道，通过第一流道和第二流道实现电机的一体散热，无需在电机外部设置冷却流道；通过定子支架支撑定子组件，提高稳定性的同时，通过定子支架形成涡流，提高冷却效率。
为了实现上述发明目的，本发明采用以下技术方案。
一种高效散热的双流道水泵，其特征是，包括水泵外筒、定子组件、转子组件和导流壳；
定子组件密闭设置在水泵外筒内，转子组件转动设置在定子组件内，水泵外筒和定子组件的外壁围合形成第一空间，转子组件的外壁和定子组件的内壁围合形成第二空间；
导流壳内设有连接转子组件的叶轮，导流壳内设有配合叶轮的安装腔，安装腔的周壁上设有若干道涡旋槽，涡旋槽连通导流壳的轴向两端，导流壳的在背对安装腔的后侧设有配合涡旋槽的挡流面；
导流壳内部设有配合转子组件的透水孔，透水孔连通导流壳的前后两端；
水泵的进水端、涡旋槽、第一空间和水泵的出水端形成第一流道；
水泵的进水端、透水孔、第二空间和水泵的出水端形成第二流道；
定子组件外侧设有定子支架，定子支架的内侧和定子组件的外壁贴合，定子支架上设有若干 个冷却槽；定子支架的两端分别设有挡流环，挡流环朝向定子支架外端的一侧设有若干段挡流槽。
第一流道能够将水泵的进水从涡旋槽引入到第一空间，完成定子外侧的散热，而第二流道能够将水泵内的水体经透水孔引入到第二空间，完成定子和转子之间的散热，散热效率高，第一流道和第二流道的设置即能够满足对流体的输送，又能够保障定子组件、转子组件和轴承的冷却，其改善了现有技术需要单独设置冷却液进行冷却的方式，还能够保障流体的正常泵送，因此具有结构简单、使用方便，经济效益好的特点；导流壳的设置完成了水体的分流，透水孔和涡旋槽分别对应第一流道和第二流道，保证两组流道的水体足量冷却，保证冷却效率；通过定子支架支撑定子组件，提高稳定性的同时，通过定子支架形成涡流，提高冷却效率。
作为优选，所述水泵还包括后端盖，水泵外筒内设有配合转轴的固定座；固定座和后端盖之间设有若干根连接杆，定子支架的挡流环上设有配合连接杆的限位孔，定子支架在冷却槽之间设有配合连接杆的限位柱面。
作为优选，定子组件包括定子外筒、定子内筒、定子绕组和密闭端件；
所述定子内筒与所述定子外筒同心布置以围合形成用于容纳所述定子绕组的容纳空间；
所述密闭端件分别与所述定子外筒、所述定子内筒连接，以密闭所述容纳空间；
定子内筒的内壁和两端分别设有绝缘纸。
通过定子外筒和定子内筒完成定子绕组的安装和密封固定，保证定子组件的绝缘性，保证电机内冷却流道设置的可靠性。
作为优选，转子组件包括转轴和转轴上的转子，所述转子外侧设有绝缘层；
所述固定座和转轴通过轴承连接，所述轴承的内周侧设有过水槽，所述轴承的端面上设有分水槽。
过水槽完成径向的通水，过水槽作为通道进一步保证了第二流道的过水能力，从而不仅保证了第二流道的冷却性能，还能完成轴承位置的散热，提高电机的散热能力；轴承和转轴一起转动，分水槽的设置能够方便水体扩散，在轴承转动时能够将水体从过水槽快速分散到第二空间或将第二空间内的水体快速抽取到过水槽，而且能够形成负压，有利于第二流道内的水体流动散热。
作为优选，过水槽为直线形，过水槽平行轴承的轴线。
作为优选，过水槽的形状为直线形，过水槽的横截面形状为半圆形，过水槽的轴线位于轴承内周侧的切面上，过水槽的轴线和轴承轴线倾斜设置，过水槽的轴线和轴承内周侧的 交点位于轴承轴向的中间位置。
作为优选，导流壳的后侧设有配合涡旋槽的挡流面；
所述安装腔的周壁上设有若干块导流板；
所述若干块导流板绕安装腔的轴线圆周阵列设置；
所述导流板的一端朝向安装腔的一侧设有与安装腔偏心设置的导流面；所述导流板的另一端背对安装腔的一侧设有顺流面；相邻导流板上的导流面和顺流面之间形成涡旋槽；
所述导流面和安装腔的周壁相切设置。
导流板之间形成了涡旋槽，涡旋槽的结构形状稳定，通过导流面实现聚流，顺流面加速水体流出，在叶轮转动时，水体从涡流槽沿导流壳的切线方向射出，对水泵外筒的冲击较小，能够保证水泵外筒的密封性和使用寿命；涡旋槽流出的水体会打击在挡流面上，之后再进行流动，有利于在挡流面位置形成涡流，提高散热效果。
作为优选，顺流面的远离安装腔底面的一端设有挡水条，涡旋槽槽底的外端设有向安装腔底面倾斜设置的导流斜面，挡水条上设有配合导流斜面的配合斜面。
由于导流斜面和配合斜面的设置，形成了向安装腔外侧的倾斜导向通道，在水体从涡流槽沿导流壳切线方向流出时，由于倾斜导向通道的设置使水体在射出时会在导流壳的切面上形成倾斜，实现水体和挡流面的倾斜碰撞，更易形成回旋形的涡流，从而有利于水体分配流动到第一空间，避免出现层流式的冷却梯度，提高第一空间对应定子的冷却效率。
作为优选，叶轮包括前轮盖和后轮体，后轮体上设有若干块绕后轮体轴线圆周阵列设置的涡流板，前轮盖贴合固定在涡流板的外端，前轮盖的轴线上设有进水孔，后轮体的轴线上设有和转轴连接的安装孔。
进水孔进水，前轮盖和后轮体密闭配合涡流板形成从轴向到周向的导流出水，实现水流的单向驱动，叶轮导水后能够将相当一部分水量导入到导流壳内，方便导流壳分流和导流的可靠性。
作为优选，后端盖包括相互连接的后盘体和后端体；后端体为圆柱形的筒状结构，后盘体体内设有截面形状为U形的过渡空间；过渡空间的中部一侧与第二空间连通，过渡空间的边缘与第一空间连通；过渡空间连通后端体；过渡空间内设有压力传感器；后端体内设有流量传感器。
通过压力传感器和流量传感器配合，实现第一流道和第二流道畅通性的测量，确保有足够的水体能够完成水泵内电机的冷却，提高冷却效率；并且方便实时检修。
本发明具有如下有益效果：能够提供对应于电机定子的第一流道和对应于电机定子和 电机转子之间的第二流道，通过第一流道和第二流道实现电机的一体散热，无需在电机外部设置冷却流道，而且冷却效率高；导流壳的设置完成了水体的分流，透水孔和涡旋槽分别对应第一流道和第二流道，保证两组流道的水体足量冷却，保证冷却效率。
附图说明
图1是本发明的结构示意图。
图2是本发明的爆炸图。
图3是本发明中导流壳的侧面结构示意图。
图4是本发明中导流壳的正面结构示意图。
图5是本发明中定子支架的结构示意图。
图6是本发明中轴承第一种实施例的结构示意图。
图7是本发明中叶轮的结构示意图。
图8是本发明中轴承第二种实施例的结构示意图。
图9是图8所示轴承的正视图。
图中：水泵外筒1 定子组件2 转子组件3 导流壳4 前端盖5 前外壳6 后端盖7 后外壳8 前盘体9 前端体10 进口11 延伸口12 转轴13 转子14 转子套筒15 固定座16 轴承17 分水槽18 过水槽19 定子外筒20 定子内筒21 定子绕组22 密闭端件23 限位孔26 定子支架27 冷却槽28 挡流环29 挡流槽30 连接杆31 限位柱面32 第一空间33 后盘体34 后端体35 第二空间36 压力传感器37 流量传感器38 止推件39 叶轮40 前轮盖41 后轮体42 涡流板43 进水孔44 安装孔45 安装腔46 涡旋槽47 导流板48 导流面49 顺流面50 挡水条51 导流斜面52 配合斜面53 挡流面54 回流槽55 透水孔56 控制盒57 底壳58 铝件59 压板60 控制器61 电源线62。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中，需要说明的是，若出现术语“上”、“下”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，若出现术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
需要说明的是，在不冲突的情况下，本发明的实施例中的特征可以相互结合。
实施例1，
如图1到图7所示，一种高效散热的双流道水泵，其特征是，包括水泵外筒1、定子组件2、转子组件3和导流壳4。
水泵外筒1的形状为两端畅通的圆筒形，水泵还包括前端盖5、前外壳6、后端盖7和后外壳8；沿所述水泵外筒1的轴线方向，所述前端盖5、所述前外壳6分别固定在水泵外筒1的一端的内外壁上，所述后端盖7、所述后外壳8分别固定在泵外筒的另一端的内外壁上。前端盖5、前外壳6、后端盖7和后外壳8均为圆形的环盘状结构。前端盖5包括相互连接的前盘体9和前端体10。前端体10为圆柱形的筒状结构，该筒状结构的中空通道形成水泵的进口11。前盘体9具有喇叭状的开放的内腔，该内腔贯穿整个前盘体9。内腔具有截面较小的小端部，以及截面较大的大端部。小端部的开口与前端盖5的中空通道连通。大端部与导流壳4的端面围合形成安装腔46。前端盖5还包括圆柱形的延伸口12，且该延伸口12位于前端体10和前盘体9之间。延伸口12的直径小于进水孔44的直径，且延伸口12伸入进水孔44中，以形成内口环结构。这样的内口环结构具有缩小口径、提高扬程和防止返流的效果。可以理解的，在本发明的其他实施例中，还可以是延伸口12的直径大于进水孔44的直径，且进水孔44伸入延伸口12中，以形成外口环结构。这样的外口环结构具有流量变大的效果。这里仅仅是一个示例，不做限定。
在水泵外筒1靠近水泵的进口11的一端，前端盖5的外周壁套设在水泵外筒1的内壁上，前端盖5与水泵外筒1的内壁通过密封件密封。且前外壳6的内壁套设在水泵外筒1的外壁上。前端盖5与前外壳6共同密封水泵外筒1靠近水泵进口11的端部。前外壳6通过一固定盖与前端盖5可拆卸地连接。在水泵外筒1靠近水泵出口的一端，后端盖7的外周壁套设在水泵外筒1的内壁上，后端盖7与水泵外筒1的内壁通过密封件密封。且后外壳8的内 壁套设在水泵外筒1的外壁上。后端盖7与后外壳8共同密封水泵外筒1靠近水泵的出口的端部。水泵外筒1靠近水泵出口的端部还是具有径向延伸的弯折部。该弯折部嵌入后端盖7与后外壳8形成的狭小空间。在该狭小空间中，弯折部靠近水泵出口一侧与后外壳8之间设置有另一密封件。前外壳6套设在前端盖5的前端体10上，且前外壳6的盘面抵持在前端盖5的前盘体9上。固定盖的外环面卡接在前外壳6的内环面上。固定盖的内壁设置有内螺纹，前端体10的外壁设置有外螺纹。固定盖的内壁与前端体10的外壁螺纹连接，以使前外壳6与前端盖5稳固连接。
优选的，前端盖5和后端盖7采用铸钢一体成型。这样的设置方式既具有结构强度好、装配可靠性好的特点，还更好地解决了多零件配合造成的安装误差及泄漏的问题。
转子组件3包括转轴13和转轴13上的转子14，转轴13上设有转子套筒15，转子14固定在转子套筒15上，转子14外侧设有绝缘层；转子套筒15的长度大于转子14的长度，因此，第二空间36包括转轴13与定子内筒21的空间、转轴13套与定子内筒21的空间，以及转子14与定子内筒21的空间。所述水泵外筒1靠近叶轮40的一端设有在定子组件2外端设置的的固定座16；固定座16和转轴13通过轴承17连接，转轴13和后端盖7之间也设有轴承17。固定座16为环形结构，固定座16的一端通过导流壳4抵持在前端盖5上，固定座16的另一端通过连接杆31与后端盖7连接；固定座16通过连接杆31与后端盖7连接的方式进一步加强了水泵整体的结构稳定性。轴承17的内周侧设有过水槽19，轴承17的端面上设有分水槽18。轴承17为石墨材质制成的石墨轴承17。石墨轴承17为衬套结构，石墨轴承17与转轴13为滑动轴承17配合。过水槽19平行轴承17的轴线设置，分水槽18设置在轴承17端面的径向。过水槽19的形状为直线形，过水槽19的横截横截面形状为半圆形。
定子组件2包括定子外筒20、定子内筒21、定子绕组22和密闭端件23；定子内筒21与所述定子外筒20同心布置以围合形成用于容纳所述定子绕组22的容纳空间；密闭端件23分别与所述定子外筒20、所述定子内筒21连接，以密闭所述容纳空间；定子内筒21的内壁和两端分别设有绝缘纸。
密闭端件23包括第一端件和第二端件。第一端件设置在定子外筒20、定子内筒21靠近水泵进口11的一侧，以密封容纳空间的第一端；第二端件设置在定子外筒20、定子内筒21靠近水泵出口的一侧，以密封容纳空间的第二端。这样的设置方式既保障了定子组件2内的定子绕组22的密闭性，又能够便于定子组件2的装配和维护。第一端件为环盘状结构。第一端件靠近定子外筒20的端面上设置有环形的第一凸起，该第一凸起向远离屏蔽泵进口11的方向延伸。第一凸起与第一端件的外边缘形成第一台阶，定子外筒20卡接在该第一台阶上。 第一凸起与第一端件的内边缘形成第二台阶，定子内筒21卡接在该第二台阶上。第二端件也为环盘状结构。第二端件的外边缘与定子外筒20的端面抵持。第二端件的内边缘设置有第三台阶，定子内筒21卡接在该第三台阶上。定子组件2外侧设有定子支架27，定子支架27的内侧和定子组件2的外壁贴合，定子支架27上设有若干个冷却槽28；定子支架27的两端分别设有挡流环29，挡流环29朝向定子支架27外端的一侧设有若干段挡流槽30。固定座16和后端盖7之间设有四根连接杆31，定子支架27的挡流环29上设有配合连接杆31的限位孔26，限位孔26的横截面为半圆形。定子支架27在冷却槽28之间设有配合连接杆31的限位柱面32。冷却槽28设置在限位柱面32之间。两限位柱面32之间设置四段冷却槽28，冷却槽28的形状为弧形的长方形，扩大定子组件2和水流直接接触的面积。
定子组件2密闭设置在水泵外筒1内，转子组件3转动设置在定子组件2内，水泵外筒1和定子组件2的外壁围合形成第一空间33，后端盖7包括相互连接的后盘体34和后端体35；后端体35为圆柱形的筒状结构，后盘体34体内设有截面形状为U形的过渡空间；过渡空间的中部一侧与第二空间36连通，过渡空间的边缘与第一空间33连通；过渡空间连通后端体35；过渡空间内设有压力传感器37；后端体35内设有流量传感器38。转子组件3的外壁和定子组件2的内壁围合形成第二空间36；转轴13上设有配合转子套筒15的止推件39，止推件39位于第二空间36内。
导流壳4内设有连接转子组件3的叶轮40，叶轮40包括前轮盖41和后轮体42，后轮体42上设有五块绕后轮体42轴线圆周阵列设置的涡流板43，前轮盖41贴合固定在涡流板43的外端，前轮盖41的轴线上设有进水孔44，后轮体42的轴线上设有和转轴13连接的安装孔45。导流壳4内设有配合叶轮40的安装腔46，前端盖5与导流壳4围合安装腔46。导流壳4对应安装腔46的周壁上设有四道涡旋槽47，涡旋槽47连通导流壳4的前后两端；具体的，安装腔46的周壁上设有四块导流板48；四块导流板48绕安装腔46的轴线圆周阵列设置；导流板48的一端朝向安装腔46的一侧设有与安装腔46偏心设置的导流面49；所述导流板48的另一端背对安装腔46的一侧设有顺流面50；相邻导流板48上的导流面49和顺流面50之间形成涡旋槽47；涡旋槽47设有四道；导流面49和安装腔46的周壁相切设置。顺流面50的远离安装腔46底面的一端设有挡水条51，涡旋槽47槽底的外端设有向安装腔46底面倾斜设置的导流斜面52，挡水条51上设有配合导流斜面52的配合斜面53。导流壳4的后侧设有配合涡旋槽47的挡流面54；挡流面54设有绕导流壳4轴线呈圆形阵列设置的十二块；相邻挡流面54之间形成回流槽55；涡旋槽47的出口端对应在四个回流槽55内。
导流壳4内部设有配合转子组件3的透水孔56，透水孔56连通导流壳4的前后两端； 水泵的进水端、涡旋槽47、第一空间33和水泵的出水端形成第一流道；水泵的进水端、透水孔56、第二空间36和水泵的出水端形成第二流道。
水泵还包括设置在水泵外筒1底部的控制装置。控制装置包括筒状的控制盒57、板状的底壳58，以及铝件59、压板60、控制器61和电源线62。控制盒57靠近水泵外筒1的一侧分别与前端盖5、后端盖7卡接，控制盒57远离水泵外筒1的一侧通过螺栓分别与前端盖5、后端盖7螺纹连接。控制盒57与底壳58围合形成封闭的盒状空间。铝件59卡接在控制盒57中，且铝件59与水泵外筒1抵持连接。这里的铝件59具有良好的导电效果，如此保障水泵的接地效果。铝件59还具有靠近底壳58的延伸件，控制器61通过压板60设置在延伸件上。控制器61通过环氧胶粘在压板60上，二者的整体固定在铝件59上。
相比现有技术中控制器61直接固定在铝件59上的方式，这样的设置更便于更换控制器61，且控制器61通过压板60、铝件59贴在水泵外筒1的外面上，可直接通过水流带走热量，实现散热效果。流量传感器38和压力传感器37均与控制器61连接。电源线62的一端与控制器61连接，电源线62的另一端向远离控制盒57的方向延伸。
可选的，这里的控制器61采用低频率赫兹信号。相比现有技术的蓝牙连接，这样的方式具有穿墙性好、灵敏度高的特点。
实施例2，
一种高效散热的双流道水泵，如图8和图9所示，实施例2与实施例1的不同之处在于：过水槽19的形状为直线形，过水槽19的横截面形状为半圆形，过水槽19的轴线位于轴承17内周侧的切面上，过水槽的轴线和轴承轴线倾斜设置，过水槽的轴线和轴承内周侧的交点位于轴承轴向的中间位置。分水槽18位于轴承17端面的径向，轴承17的两端分别设置了倒角，分水槽18沿着轴承17的端面和倒角呈折线形设置。
使用时，定子组件2通电，定子绕组22在产生变化的磁场以带动转子14转动。因为转子14与转轴13是固定连接，因此转子14转动时，转轴13上的叶轮40同时转动。具体的，启动水泵后，转轴13带动叶轮40和水做高速旋转运动，水发生离心运动，被甩向叶轮40外缘，从而使水流开始移动。一部分水流经蜗形的导流壳4的涡旋槽47流入第一空间33，再从过渡空间泵送至后端盖7上的出口，即形成第一流道；另一部分水流从透水孔56经前端轴承17的过水槽19进入第二空间36，再从第二空间36经后端轴承17的过水槽19进入过渡空间，再过渡空间泵送至后端盖7上的出口，即形成第二流道。这样第一流道和第二流道的设置能够满足对流体的输送，又能够利用泵送的流体对定子组件2、转子组件3和轴承17进行冷却，且冷却效果出众。

Claims (10)

  1. 一种高效散热的双流道水泵，其特征是，包括水泵外筒、定子组件、转子组件和导流壳；
    定子组件密闭设置在水泵外筒内，转子组件转动设置在定子组件内，水泵外筒和定子组件的外壁围合形成第一空间，转子组件的外壁和定子组件的内壁围合形成第二空间；
    导流壳内设有连接转子组件的叶轮，导流壳内设有配合叶轮的安装腔，安装腔的周壁上设有若干道涡旋槽，涡旋槽连通导流壳的轴向两端，导流壳的在背对安装腔的后侧设有配合涡旋槽的挡流面；
    导流壳内部设有配合转子组件的透水孔，透水孔连通导流壳的前后两端；
    水泵的进水端、涡旋槽、第一空间和水泵的出水端形成第一流道；
    水泵的进水端、透水孔、第二空间和水泵的出水端形成第二流道；
    定子组件外侧设有定子支架，定子支架的内侧和定子组件的外壁贴合，定子支架上设有若干个冷却槽；定子支架的两端分别设有挡流环，挡流环朝向定子支架外端的一侧设有若干段挡流槽。
  2. 根据权利要求1所述的一种高效散热的双流道水泵，其特征是，所述水泵还包括后端盖，水泵外筒内设有配合转轴的固定座；固定座和后端盖之间设有若干根连接杆，定子支架的挡流环上设有配合连接杆的限位孔，定子支架在冷却槽之间设有配合连接杆的限位柱面。
  3. 根据权利要求1所述的一种高效散热的双流道水泵，其特征是，所述定子组件包括定子外筒、定子内筒、定子绕组和密闭端件；
    所述定子内筒与所述定子外筒同心布置以围合形成用于容纳所述定子绕组的容纳空间；
    所述密闭端件分别与所述定子外筒、所述定子内筒连接，以密闭所述容纳空间；
    定子内筒的内壁和两端分别设有绝缘纸。
  4. 根据权利要求1或2或3所述的一种高效散热的双流道水泵，其特征是，所述转子组件包括转轴和转轴上的转子，所述转子外侧设有绝缘层；
    所述固定座和转轴通过轴承连接，所述轴承的内周侧设有过水槽，所述轴承的端面上设有分水槽。
  5. 根据权利要求4所述的一种高效散热的双流道水泵，其特征是，所述过水槽为直线形，过水槽平行轴承的轴线。
  6. 根据权利要求4所述的一种高效散热的双流道水泵，其特征是，所述过水槽的形状为直线形，过水槽的横截面形状为半圆形，过水槽的轴线位于轴承内周侧的切面上，过水槽的轴线和轴承轴线倾斜设置，过水槽的轴线和轴承内周侧的交点位于轴承轴向的中间位置。
  7. 根据权利要求1所述的一种高效散热的双流道水泵，其特征是，所述安装腔的周壁上设有 若干块导流板；
    所述若干块导流板绕安装腔的轴线圆周阵列设置；
    所述导流板的一端朝向安装腔的一侧设有与安装腔偏心设置的导流面；所述导流板的另一端背对安装腔的一侧设有顺流面；相邻导流板上的导流面和顺流面之间形成涡旋槽；
    所述导流面和安装腔的周壁相切设置。
  8. 根据权利要求7所述的一种高效散热的双流道水泵，其特征是，所述顺流面的远离安装腔底面的一端设有挡水条，涡旋槽槽底的外端设有向安装腔底面倾斜设置的导流斜面，挡水条上设有配合导流斜面的配合斜面。
  9. 根据权利要求1所述的一种高效散热的双流道水泵，其特征是，所述叶轮包括前轮盖和后轮体，后轮体上设有若干块绕后轮体轴线圆周阵列设置的涡流板，前轮盖贴合固定在涡流板的外端，前轮盖的轴线上设有进水孔，后轮体的轴线上设有和转轴连接的安装孔。
  10. 根据权利要求2所述的一种高效散热的双流道水泵，其特征是，所述后端盖包括相互连接的后盘体和后端体；后端体为圆柱形的筒状结构，后盘体体内设有截面形状为U形的过渡空间；过渡空间的中部一侧与第二空间连通，过渡空间的边缘与第一空间连通；过渡空间连通后端体；过渡空间内设有压力传感器；后端体内设有流量传感器。
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