WO2023071035A1 - 一种双流道散热水泵 - Google Patents

一种双流道散热水泵 Download PDF

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Publication number
WO2023071035A1
WO2023071035A1 PCT/CN2022/081975 CN2022081975W WO2023071035A1 WO 2023071035 A1 WO2023071035 A1 WO 2023071035A1 CN 2022081975 W CN2022081975 W CN 2022081975W WO 2023071035 A1 WO2023071035 A1 WO 2023071035A1
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WO
WIPO (PCT)
Prior art keywords
stator
impeller
shell
channel
cover
Prior art date
Application number
PCT/CN2022/081975
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English (en)
French (fr)
Inventor
张逸
Original Assignee
利欧集团浙江泵业有限公司
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Filing date
Publication date
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 WO2023071035A1 publication Critical patent/WO2023071035A1/zh

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Classifications

    • 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
    • F04D13/0606—Canned motor 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially 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
    • 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
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the invention relates to an intelligent water pump structure, in particular to a double-channel cooling water pump.
  • the "miniature brushless DC centrifugal water pump” disclosed in the Chinese patent literature has a notification number of CN104235029B, which includes a casing, a stator, a rotor, and an impeller.
  • the water flow channel formed by the connection of the two outlets is installed in the water flow channel with a magnetic rotor that can be rotated by the impact of the water flow.
  • the magnetic rotor and the Hall element are two The latter forms a water flow velocity sensor, the water flow velocity sensor and the control circuit board constitute the control switch for the automatic start/stop of the water pump; thereby, only the water valve of the water pipe needs to be opened, and the water pressure is detected by the water flow velocity sensor, and the control
  • the circuit board realizes the automatic start/stop of the water pump, no need to set a mechanical start/stop switch on the water pump, no manual operation, the water delivery of the water pump is more intelligent, and the use is more convenient. It is suitable for solar water heaters, high-rise water heaters, high-rise water supply, and rural water supply. If the pressure is too low, it can increase the water pressure and improve the water supply state.
  • the disadvantage of this patent is that the temperature of the water pump increases rapidly during operation.
  • the present invention aims to overcome the problem in the prior art that during the operation of the water pump, the rotor and stator will generate heat. Since the water pump is a closed structure, the heat generated will cause the temperature to rise rapidly, and provides a dual-channel heat dissipation The water pump can quickly take away the heat from the stator and rotor while the water pump is working, so as to avoid the overheating of the water pump.
  • the present invention relates to a dual-channel cooling water pump, which includes a pump body, the pump body includes a pump body shell, the front end of the pump body shell is provided with a water inlet, the rear end of the pump body shell is provided with a water outlet, and the inside of the pump body shell A stator and a rotor are provided, an outer flow channel is formed between the pump body casing and the stator casing, and an inner flow path is formed between the stator casing and the rotor.
  • the two ends of the stator are respectively equipped with a stator front cover and a stator rear cover.
  • a diversion shell is installed on the front side of the cover, the outer side of the diversion shell is provided with a first outlet communicating with the outer flow channel, and the side of the diversion shell facing the front cover of the stator is provided with a second outlet communicating with the inner flow channel,
  • the guide shell is provided with an impeller installation groove, and an impeller is installed in the impeller installation groove, and the impeller is adapted to be installed with the rotating shaft of the rotor. connected within the shell.
  • the impeller provides power for the fluid, and makes the fluid flow out from the first outlet or the second outlet, wherein the fluid passing through the first outlet enters the outer channel and dissipates heat from the stator, while the fluid passing through the second outlet enters the inner channel, At the same time, the stator and the rotor are dissipated. Since the structure dissipates heat through the fluid passing through during operation, no additional heat dissipating structure is required, and the cost is low and the occupied space is small.
  • the impeller is disc-shaped, and several spiral flow passages communicating with the outside are arranged inside the impeller, and an impeller water inlet channel is provided on one side of the impeller, and the impeller water inlet passage communicates with the spiral flow passage and the impeller water inlet passage.
  • the water inlet on the diversion shell; the fluid enters the impeller from the impeller water inlet channel and then enters the spiral flow channel.
  • the flow channel wall of the spiral flow channel provides power for the fluid in the impeller and will Fluid is thrown from the sides of the impeller.
  • the impeller makes a swirling flow with a fixed direction formed in the flow guide shell
  • the first outlet includes a first outlet outer port located outside the flow guide shell and a first outlet inner port located inside the flow guide shell, the The shape of the inner opening of the first outlet is arc-shaped, and is tangent to the impeller installation groove.
  • the side of the guide shell facing the outer flow channel is provided with several separation grooves separated by the separation plate in the circumferential direction.
  • the front cover of the stator There is also a deposition chamber between the guide shell and the second outlet.
  • the second outlet is a circular hole coaxial with the rotor; due to the effect of the spiral flow channel in the impeller, the The fluid in the fluid will rotate to form a swirling flow, so that the impurities in the fluid will converge at the middle of the guiding shell, that is, the second outlet, and enter the deposition chamber, thereby playing the role of filtering impurities and preventing impurities from entering the inner channel or
  • the outer flow channel causes friction with the stator or rotor.
  • the impurities in the deposition chamber can be cleaned through regular maintenance.
  • the shape of the inner opening of the first outlet makes the fluid swirling in the diversion shell not be affected by the flow direction of the fluid at the outlet.
  • the shape of the outer opening of the first outlet prevents the fluid leaving the guide shell from moving circumferentially in the outer flow channel, thereby reducing the energy loss of the fluid, and the separation groove can block the inner opening of the first outlet. , to further avoid the circumferential movement of the fluid.
  • a reinforcing frame is installed on the outside of the stator shell, and the reinforcing frame includes a frame front seat connected to the stator front cover, a frame rear seat connected to the stator rear cover, a frame beam connecting the frame front seat and the frame rear seat, and A plurality of reinforcement rings arranged at intervals and covered on the stator casing; the reinforcement frame can avoid misalignment of the stator due to insufficient strength of the fixing structure during long-term use.
  • a flow limiting block is installed between the front cover of the stator and the rotating shaft of the rotor, a limiting block is also installed between the rear cover of the stator and the rotating shaft of the rotor, a thrust block is also installed on the rotating shaft of the rotor, and the limiting block
  • the inside of the inner side is provided with a circumferential flow-limiting groove, and the side of the flow-limiting block facing the thrust block is provided with a radial flow-limiting groove; the flow-limiting groove is used to reduce the flow of fluid in the inner flow channel, because the inner flow channel is located between the rotor and the
  • the gap between the stators has a small cross-sectional area and a fast flow rate. The flow rate of the fluid in the inner flow channel can be reduced by limiting the flow through the flow limiting groove, so as to avoid more frictional heat between the fluid and the stator rotor.
  • the stator back cover includes a stator connection seat connected to the stator, a water outlet cavity is provided in the stator connection seat, an outer flow channel opening communicated with the outer flow channel is provided on the water outlet cavity, and the water outlet cavity faces one side of the stator.
  • the side of the inner flow channel is provided with an opening of the inner flow channel, and the side of the water outlet cavity facing away from the stator is connected to the water outlet; the fluid in the outer flow channel and the inner flow channel are collected in the water outlet cavity, and then flow out from the water outlet.
  • the pressure detection component is installed in the pressure detection port to detect the collected fluid pressure
  • the flow rate detection component is installed in the water outlet to detect the flow rate of the collected fluid
  • the flow rate detection component and the pressure detection component are directly installed on the water pump
  • the back cover of the stator reduces the installation space occupied by the smart water pump.
  • the water pump also includes a controller connected to the pump body, the controller includes a controller upper cover and a controller base, and the upper side of the controller upper cover is attached to the lower side of the pump housing;
  • the front cover of the pump body is provided with a front cover plug-in block
  • the upper cover of the controller is provided with a front cover plug-in interface adapted to the front cover plug-in block
  • the rear cover of the pump body is provided with a rear cover plug-in block.
  • the upper cover of the controller is arranged on the rear cover plug-in interface adapted to the rear cover plug-in block; the front cover plug-in block and the rear cover plug-in block can be adapted and plugged on the controller upper cover, so that the pump body It can be installed together with the controller, saving the installation space of the water pump.
  • the present invention has the following beneficial effects: (1) the fluid in the water pump can be used to water-cool and dissipate the stator and rotor of the controller; (2) the controller, flow rate and pressure detection components are integrated into the water pump structure for easy maintenance , to reduce the occupied space.
  • Fig. 1 is a kind of structural representation of the present invention.
  • Fig. 2 is a schematic cross-sectional structure diagram of the present invention.
  • Fig. 3 is a top structural schematic diagram of the upper cover of the controller of the present invention.
  • Fig. 4 is a schematic cross-sectional structure diagram of the controller of the present invention.
  • Fig. 5 is a schematic cross-sectional structural view of the front cover part of the present invention.
  • Fig. 6 is a schematic cross-sectional structural view of the rear cover part of the present invention.
  • Fig. 7 is a schematic structural view of the power cord sleeve of the present invention.
  • Fig. 8 is a schematic structural view of the diversion shell of the present invention.
  • Fig. 9 is a schematic structural view of the stator front cover of the present invention.
  • Fig. 10 is a schematic diagram of the internal structure of the impeller of the present invention.
  • Fig. 11 is a schematic structural view of the back cover of the pump body of the present invention.
  • Fig. 12 is a structural schematic diagram of the reinforced skeleton of the present invention.
  • pump body 2 stator 3, rotor 4, controller 5, pump body front cover 6, pump body rear cover 7, stator front cover 8, stator rear cover 9, outer runner 10, inner runner 11, Pump casing 12, impeller installation groove 13, front cover plug block 14, rear cover plug block 15, front cover plug interface 16, rear cover plug port 17, main board 18, cooling groove 19, cooling port 20, rotating shaft 21 , Current limiting block 22, Current limiting groove 23, Thrust bearing 24, Pressure sensor 25, Pressure detection terminal 26, Pressure connection terminal 27, Wiring trough 28, Back cover insert sealing ring 29, Water inlet 30, Water outlet 31. Flow rate sensor 33. Power cord hole 34. Power cord sleeve 35. Rotating part 36. Collar 37. Limit flange 38. Limit port 39. Limit seat 40. Arc limit part 41. Extrusion part 42.
  • a dual-channel heat dissipation water pump includes a pump body 1, the pump body includes a pump body shell 11, the front end of the pump body shell is provided with a water inlet 29, and the rear of the pump body shell The pump body is provided with a water outlet 30, the pump body is provided with a stator 2 and a rotor 3, a controller 4 is connected to the pump body, and the pump body includes a pump body shell and a pump body front cover 5 located at both ends of the pump body shell And the pump body rear cover 6, the stator includes a stator shell and a stator front cover 7 and a stator rear cover 8 positioned at both ends of the stator shell, an outer flow channel 9 is formed between the pump body shell and the outside of the stator shell, and the controller includes The controller upper cover and the controller base, the upper side of the controller upper cover is attached to the lower side of the pump body shell; the front cover of the pump body is provided with a front cover plug block 13, and the controller upper cover is provided with There is
  • the side of described controller loam cake is provided with power cord hole 33, and the power cord of controller passes through power cord hole, and described power cord outer side is covered with power cord cover 34, and described power cord cover includes and is positioned at power cord hole place.
  • the rotating part 35, the outer surface of the rotating part is spherical, and one end of the rotating part is provided with a collar 36 for tightening the power cord;
  • the power cord sleeve also includes a limit flange 37, on the controller
  • the cover includes a limiting opening 38, which is located between the limiting flange and the rotating part, and the thickness of the limiting opening is smaller than the distance from the limiting flange to the rotating part;
  • One side is provided with rounded corners;
  • the upper cover of the controller is also provided with a limit seat 39, and the limit seat is located below the power cord;
  • the limit seat is provided with two arc-shaped limit parts 40, The arc-shaped limiting part is in contact with the lower part of the power cord; an
  • the stator rear cover includes a water outlet, and the water outlet passes through the pump body rear cover, and an electrical connection cavity for arranging electrical components and connecting wires is formed between the pump body rear cover and the stator rear cover.
  • the body rear cover is provided with a rear cover plug-in block, the rear cover plug-in block is plugged on the controller, the wiring groove communicates with the electrical connection cavity and the inside of the controller, and the stator rear cover is equipped with a pressure detection component and a flow rate detection assembly;
  • the pump body back cover includes a back cover plate 42, a back cover connecting part 43 and a back cover sealing part 44, the back cover connecting part is connected with the stator back cover, and the back cover sealing part covers Outside the pump casing;
  • the water outlet passes through the back cover, and a water outlet sealing ring 45 is arranged between the water outlet and the back cover;
  • the stator back cover also includes a back cover fixing seat 46, and the back cover fixing seat
  • the outer diameter of the pump body is adapted to the inner diameter of the
  • the back cover of the stator includes a stator connection seat connected with the stator, and a water outlet cavity 55 is arranged inside the stator connection seat, and an outer flow channel opening 53 communicating with the outer flow channel is provided on the water outlet cavity, and the side of the water outlet cavity facing the stator is provided with
  • stator back cover equipped with the back cover sealing ring is installed from the left side of the pump casing to the back cover limit ring, and then the back cover sealing gasket is installed on the right side of the back cover limit ring, and then from the right Put the back cover of the pump body on the left, then connect and press the back cover of the pump body and the back cover of the stator through bolts, and then plug the bolt installation holes of the back cover with the plugs of the back cover installation holes; wait for the front cover of the stator and the front cover of the pump body After all the structures are installed, connect the main part of the water pump with the controller, and insert the plug-in block of the back cover into the plug-in interface of the back cover.
  • a guide case 58 is installed on the front cover of the stator, and an impeller installation groove 12 is arranged in the guide case, and an impeller 59 is installed in the impeller installation groove, and the impeller is adapted to be installed with the rotating shaft of the rotor.
  • the front side of the impeller communicates with the water inlet, and the outer surface of the impeller communicates with the inside of the diversion shell.
  • the outer side of the diversion shell is provided with a first outlet 60 communicating with the outer flow channel.
  • the side of the diversion shell facing the front cover of the stator is provided with The second outlet 61 communicating with the inner flow channel; the impeller is disc-shaped, and several spiral flow channels 62 communicating with the outside are arranged in the impeller, and an impeller water inlet channel 63 is provided on one side of the impeller.
  • the water inlet channel of the impeller communicates with the spiral flow channel and the water inlet on the diversion shell; the impeller makes a swirling flow with a fixed direction formed in the diversion shell, and the first outlet includes a first outlet outside the diversion shell 601 and the first outlet inner port 602 located inside the guide shell.
  • the shape of the first outlet inner port is arc-shaped and tangent to the impeller installation groove.
  • the side of the guide shell facing the outer flow channel is provided with A plurality of separation grooves 581 separated by partition plates, a deposition chamber 64 is also provided between the stator front cover and the guide case, the deposition chamber communicates with the second outlet, and the second outlet is the same as the rotor.
  • the circular hole of the shaft; the stator front cover is provided with a front cover deposition groove 65 on the side facing the guide shell, and the guide housing is provided with a guide case deposition groove 66 on the side facing the stator front cover,
  • the front cover sedimentation tank and the diversion shell sedimentation tank form the deposition chamber;
  • the impeller includes a base plate and a cover plate, and the base plate is provided with an arc-shaped partition 67 for forming a spiral flow channel, and the middle part of the base plate is provided with
  • the impeller mounting hole 68 that is adapted and connected with the rotor, the water inlet channel is provided on the cover plate;
  • the double-channel water pump stator front cover structure also includes a front cover fixing seat 69, the outer diameter of the front cover fixing seat is the same as that of the pump
  • the size of the inner diameter of the body casing is adapted, and a front cover sealing ring 70 is installed between the front cover fixing seat and the pump body casing.
  • a reinforcing frame 71 is installed on the outside of the stator shell, and the reinforcing frame includes a frame front seat 72 connected with the stator front cover, a frame rear seat 73 connected with the stator rear cover, and a frame beam 74 connecting the frame front seat and the frame rear seat, And several reinforcement rings 75 arranged at intervals and covered on the stator shell.
  • the fluid enters the water pump from the water inlet, and then enters the impeller of the guide casing.
  • the fluid is powered through the arc-shaped partition, and the fluid is sent to the side of the impeller along the spiral flow path.
  • the fluid leaving the impeller forms a swirling flow in the guide shell
  • the fluid in the guide shell mainly flows to the outer flow channel through the first outlet, and a small part of the fluid flows to the inner flow channel through the second outlet, thereby dissipating heat from the stator and rotor ; while a small amount of impurities in the water pump, under the action of the swirling flow, gather in the middle of the guide shell, and flow to the second outlet with the fluid. Since the fluid in the deposition chamber is in a stagnant state, the impurities are finally deposited. Deposits in the cavity will not enter the inner or outer runners.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种双流道散热水泵包括泵体（1），泵体（1）包括泵体外壳（11），泵体外壳（11）内设有定子（2）和转子（3），泵体外壳（11）与定子（2）外壳之间形成外流道（9），定子（2）外壳与转子（3）之间形成内流道（10），导流壳的外侧设有与外流道（9）连通的第一出口（60），导流壳朝向定子（2）前盖的一侧设有与内流道（10）连通的第二出口（61），流体从第一出口（60）或第二出口（61）流出，同时对定子（2）和转子（3）进行散热。该水泵利用工作流体对电机进行散热，无需额外设置散热结构。

Description

一种双流道散热水泵 技术领域
本发明涉及一种智能水泵结构，尤其是涉及一种双流道散热水泵。
背景技术
水泵在运转的过程中，其转子和定子会产生热量，由于水泵为封闭结构，产生的热量会使得温度升高较快，因而，需要对水泵进行散热。
例如，在中国专利文献上公开的“微型无刷直流离心水泵”，其公告号为CN104235029B，包括机壳、定子、转子、叶轮，该机壳的两端分别具有进水口和出水口，进、出水口二者连通形成的水流通道，于水流通道中安装一可被水流冲击而转动的磁转子，于该磁转子的侧旁具有霍尔元件和控制电路板，该磁转子和霍尔元件二者形成水流速度感应器，该水流速度感应器和控制电路板构成水泵自动启/停的控制开关；藉此，只需要打开水管的水阀，通过水流速度感应器来检测水压大小，配合控制电路板实现水泵自动启/停，无需在水泵上设置机械式启/停开关，无需人工操作，水泵送水更为智能化，使用更为方便，对太阳能热水器，高楼热水器，高楼供水，农村供水水压过低，起到增加水压、改善供水状态，然而，该专利的不足之处在于，其水泵在运行过程中温度升高较快。
发明内容
本发明是为了克服现有技术中，水泵在运转的过程中，其转子和定子会产生热量，由于水泵为封闭结构，产生的热量会使得温度升高较快的问题，提供一种双流道散热水泵，可以在水泵工作的同时快速带走定子和转子处的热量，从而避免水泵温度过高。
为了实现上述目的，本发明采用以下技术方案：
本发明，一种双流道散热水泵，包括泵体，所述泵体包括泵体外壳，泵体外壳的前端设有进水口，泵体外壳的后端设有出水口，所述泵体外壳内设有定子和转子，泵体外壳与定子外壳之间形成外流道，定子外壳与转子之间形成内流道，所述定子的两端分别安装有定子前盖和定子后盖，所述定子前盖的前侧安装有导流壳，所述导流壳的外侧设有与外流道连通的第一出口，导流壳朝向定子前盖的一侧设有与内流道连通的第二出口，所述导流壳内设有叶轮安装槽，所述叶轮安装槽中安装有叶轮，所述叶轮与转子的转轴适配安装，所述叶轮前侧与进水口连通，叶轮的外侧面与导流壳内连通。
所述叶轮为流体提供动力，并使得流体从第一出口或第二出口流出，其中经过 第一出口的流体进入外流道，并对定子进行散热，而经过第二出口的流体进入内流道，同时对定子和转子进行散热，由于该结构通过工作时经过的流体进行散热，无需额外设置散热结构，成本较低，并且占用空间较小。
作为优选，所述叶轮为圆盘形，叶轮内设有若干个与外侧连通的螺旋形流道，叶轮的一侧上设有叶轮进水通道，所述叶轮进水通道连通螺旋形流道和导流壳上的进水口；流体从叶轮进水通道进入叶轮后进入螺旋形流道，叶轮在转动的过程中，所述螺旋形流道的流道壁为叶轮中的流体提供动力，并将流体从叶轮侧面甩出。
作为优选，所述叶轮使得导流壳内形成方向固定的旋流，所述第一出口包括位于导流壳外侧的第一出口外口和位于导流壳内侧的第一出口内口，所述第一出口内口的形状为弧形，并且与叶轮安装槽相切，所述导流壳朝向外流道的一侧上周向设有若干个由分隔板隔开的分隔槽，所述定子前盖与导流壳之间还设有沉积腔，所述沉积腔与第二出口连通，所述第二出口为与转子同轴的圆孔；由于叶轮中螺旋形流道的作用，在导流壳中的流体会转动形成旋流，从而使得流体中的杂质会向导流壳的中部，即第二出口处汇聚，并进入沉积腔中，从而起到杂质过滤的作用，避免杂质进入内流道或外流道导致与定子或转子摩擦的情况，通过定期维护可以清理沉积腔中的杂质，所述第一出口内口的形状使得在导流壳内旋流的流体不会由于出口处流体的流动方向而受到阻力，而所述第一出口外口的形状使得离开导流壳的流体不会在外流道内进行周向运动，从而减少流体的能量损失，而所述分隔槽可以隔断第一出口内口，进一步避免流体的周向运动。
作为优选，所述定子外壳的外部安装有加强骨架，所述加强骨架包括与定子前盖连接的骨架前座、与定子后盖连接的骨架后座、连接骨架前座和骨架后座的骨架横梁，以及若干个间隔设置、包覆在定子外壳上的加强环；所述加强骨架可以避免长期使用过程中定子由于固定结构的强度不足而导致错位的情况。
作为优选，所述定子前盖与转子的转轴之间安装有限流块，所述定子后盖与转子的转轴之间也安装有限流块，转子的转轴上还安装有止推块，限流块的内侧设有周向限流槽，限流块朝向止推块的一侧设有径向限流槽；所述限流槽用于减少内流道中流体的流量，由于内流道位于转子和定子之间的缝隙处，其截面积较小，流速较快，通过限流槽限流可以减小内流道中流体的流速，避免流体与定子转子之间产生较多的摩擦热。
作为优选，所述定子后盖包括与定子连接的定子连接座，所述定子连接座内设有出水腔，所述出水腔上设有与外流道连通的外流道开口，出水腔朝向定子的一侧设有 与内流道连通的内流道开口，出水腔背向定子的一侧与出水口连通；所述外流道和内流道中的流体在出水腔中汇集，然后从出水口处流出，所述压力检测组件安装在压力检测口中，可以检测汇集后的流体压力，而流速检测组件安装在出水口中，可以检测汇集后的流体的流速，并且，流速检测组件和压力检测组件直接安装在水泵定子后盖上，减少了智能水泵占用的安装空间。
作为优选，所述水泵还包括与泵体连接的控制器，所述控制器包括控制器上盖和控制器底座，所述控制器上盖的上侧与泵体外壳的下侧贴合；所述泵体前盖上设有前盖插接块，控制器上盖上设有与前盖插接块适配的前盖插接口，所述泵体后盖上设有后盖插接块，控制器上盖上设于与后盖插接块适配的后盖插接口；所述前盖插接块和后盖插接块可以适配插接在控制器上盖上，从而使泵体和控制器可以安装在一起，节省水泵的安装空间。
因此，本发明具有如下有益效果：(1)可以利用水泵中的流体，对控制器的定子和转子进行水冷散热；(2)将控制器和流速、压力检测组件整合到水泵结构中，便于检修，减小占用空间。
附图说明
图1是本发明的一种结构示意图。
图2是本发明的一种剖视结构示意图。
图3是本发明控制器上盖的一种俯视结构示意图。
图4是本发明控制器的一种剖视结构示意图。
图5是本发明前盖部分的一种剖视结构示意图。
图6是本发明后盖部分的一种剖视结构示意图。
图7是本发明电源线套的一种结构示意图。
图8是本发明导流壳的一种结构示意图。
图9是本发明定子前盖的一种结构示意图。
图10是本发明叶轮内部的结构示意图。
图11是本发明泵体后盖的一种结构示意图。
图12是本发明加强骨架的一种结构示意图。
图中：1、泵体 2、定子 3、转子 4、控制器 5、泵体前盖 6、泵体后盖 7、定子前盖 8、定子后盖 9、外流道 10、内流道 11、泵体外壳 12、叶轮安装槽 13、 前盖插接块 14、后盖插接块 15、前盖插接口 16、后盖插接口 17、主板 18、散热凹槽 19、散热口 20、转轴 21、限流块 22、限流槽 23、止推轴承 24、压力传感器 25、压力检测端 26、压力接电端 27、走线槽 28、后盖插接密封圈 29、进水口 30、出水口 31、流速传感器 33、电源线孔 34、电源线套 35、转动部 36、套环 37、限位法兰 38、限位口 39、限位座 40、弧形限位部 41、挤压部 42、后盖板 43、后盖连接部 44、后盖密封部 45、出水口密封圈 46、后盖固定座 47、后盖密封圈 48、后盖限位环 49、后盖连接台阶 50、后盖密封垫圈 51、后盖螺栓安装孔 52、后盖安装孔塞 53、外流道开口 54、内流道开口 55、出水腔 56、压力检测密封圈 57、压力检测限流口 58、导流壳 59、叶轮 60、第一出口 601、第一出口外口 602、第一出口内口 61、第二出口 63、叶轮进水通道 64、沉积腔 65、前盖沉积槽 66、导流壳沉积槽 67、弧形隔板 68、叶轮安装孔 69、前盖固定座 70、前盖密封圈 71、加强骨架 72、骨架前座 73、骨架后座 74、骨架横梁 75、加强环。
具体实施方式
下面结合附图与具体实施方式对本发明做进一步的描述。
如图1-12所示的实施例中，一种双流道散热水泵，包括泵体1，所述泵体包括泵体外壳11，泵体外壳的前端设有进水口29，泵体外壳的后端设有出水口30，所述泵体内设有定子2和转子3，所述泵体上连接有控制器4，所述泵体包括泵体外壳以及位于泵体外壳两端的泵体前盖5和泵体后盖6，所述定子包括定子外壳和位于定子外壳两端的定子前盖7和定子后盖8，所述泵体外壳和定子外壳外侧之间形成外流道9，所述控制器包括控制器上盖和控制器底座，所述控制器上盖的上侧与泵体外壳的下侧贴合；所述泵体前盖上设有前盖插接块13，控制器上盖上设有与前盖插接块适配的前盖插接口15，所述泵体后盖上设有后盖插接块14，控制器上盖上设于与后盖插接块适配的后盖插接口16；所述控制器还包括主板17，所述控制器上盖设有散热凹槽18，所述散热凹槽包括位于主板上方的散热口19；所述定子外壳内侧和转子之间形成内流道10；所述转子包括转轴20，所述转轴穿过定子前盖，定子前盖与转轴之间安装有环形的限流块21，所述限流块上设有限流槽22，所述转轴上还安装有止推轴承23；所述定子后盖上安装有压力传感器24，所述压力传感器包括压力检测端25和压力接电端26，所述检测端位于定子内侧，所述接电端位于定子外侧，所述后盖插接块内设有与控制器内部连 通的走线槽27；所述后盖插接块与后盖插接口之间设有后盖插接密封圈28；所述进水口位于定子前盖上，所述出水口位于定子后盖上，所述出水口内设有流速传感器31，所述流速传感器包括流速接电端，所述流速接电端位于出水口的外侧；所述散热凹槽中安装有导热硅胶，所述导热硅胶与泵体外壳接触。
所述控制器上盖的侧面设有电源线孔33，控制器的电源线穿过电源线孔，所述电源线外侧套有电源线套34，所述电源线套包括位于电源线孔处的转动部35，所述转动部的外侧面为球面型，转动部的一端设有用于将电源线套紧的套环36；所述电源线套还包括限位法兰37，所述控制器上盖包括限位口38，所述限位口位于限位法兰与转动部之间，所述限位口的厚度小于限位法兰到转动部的距离；所述电源线孔朝向转动部的一侧处设有圆角；所述控制器上盖上还设有限位座39，所述限位座位于电源线的下方；所述限位座上设有两个弧形限位部40，所述弧形限位部与电源线的下部接触；两个弧形限位部之间设有挤压部41；所述转动部的材料为橡胶；当电源线受到弯折时，所述转动部会随着弯折的方向发生一定程度的转动，从而使得电源线相对电源线套发生的弯折角减小，从而减少电源线受到的损坏，增加使用寿命；当电源线受到长度方向的拉扯时，转动部与电源线孔之间会发生挤压，从而起到缓冲作用，当拉扯力较大时，电源线与电源线套之间会发生相对移动，从而避免电源线被拉坏。
所述定子后盖包括出水口，所述出水口穿过泵体后盖，所述泵体后盖与定子后盖之间形成用于布置电气件和连接线的电气连接空腔，所述泵体后盖上设有后盖插接块，所述后盖插接块插接在控制器上，走线槽连通电气连接空腔和控制器内部，所述定子后盖上安装有压力检测组件和流速检测组件；所述泵体后盖包括与后盖板42、后盖连接部43和后盖密封部44，所述后盖连接部与定子后盖连接，所述后盖密封部包覆在泵体外壳外部；所述出水口穿过后盖板，出水口与后盖板之间设有出水口密封圈45；所述定子后盖还包括后盖固定座46，所述后盖固定座的外径与泵体外壳的内径大小适配，所述后盖固定座与泵体外壳之间安装有后盖密封圈47，所述泵体外壳上设有用于限位定子后盖的后盖限位环48；所述后盖连接部与后盖密封部之间设有后盖连接台阶49，所述后盖连接台阶与后盖限位环之间设有后盖密封垫圈50；所述后盖连接部上设有后盖螺栓安装孔51，所述后盖螺栓安装孔中安装有用于连接定子后盖和泵体后盖的后盖连接螺栓，所述后盖螺栓安装孔的开口处还安装有后盖安装孔塞52。
定子后盖包括与定子连接的定子连接座，所述定子连接座内设有出水腔55，所 述出水腔上设有与外流道连通的外流道开口53，出水腔朝向定子的一侧设有与内流道连通的内流道开口54，出水腔背向定子的一侧与出水口连通，所述定子连接座内还设有与出水腔连通的压力检测口，所述压力检测口中安装有压力检测组件，压力检测组件与压力检测口之间安装有压力检测密封圈56；所述压力检测口与所述出水腔之间设有压力检测限流口57，；所述外流道开口的开口角度不超过90°。
在安装过程中，装有后盖密封圈的定子后盖从泵体外壳的左侧装入至后盖限位环处，然后在后盖限位环右侧安装后盖密封垫圈，再从右向左套上泵体后盖，然后通过螺栓将泵体后盖和定子后盖连接并压紧，再用后盖安装孔塞堵上后盖螺栓安装孔；待定子前盖、泵体前盖等结构均安装完后，将水泵主体部分与控制器连接，并将后盖插接块适配插入后盖插接口中。
所述定子前盖上安装有导流壳58，所述导流壳内设有叶轮安装槽12，所述叶轮安装槽中安装有叶轮59，所述叶轮与转子的转轴适配安装，所述叶轮前侧与进水口连通，叶轮的外侧面与导流壳内连通，所述导流壳的外侧设有与外流道连通的第一出口60，导流壳朝向定子前盖的一侧设有与内流道连通的第二出口61；所述叶轮为圆盘形，叶轮内设有若干个与外侧连通的螺旋形流道62，叶轮的一侧上设有叶轮进水通道63，所述叶轮进水通道连通螺旋形流道和导流壳上的进水口；所述叶轮使得导流壳内形成方向固定的旋流，所述第一出口包括位于导流壳外侧的第一出口外口601和位于导流壳内侧的第一出口内口602，所述第一出口内口的形状为弧形，并且与叶轮安装槽相切，所述导流壳朝向外流道的一侧上周向设有若干个由分隔板隔开的分隔槽581，所述定子前盖与导流壳之间还设有沉积腔64，所述沉积腔与第二出口连通，所述第二出口为与转子同轴的圆孔；所述定子前盖在朝向导流壳的一侧上设有前盖沉积槽65，所述导流壳在朝向定子前盖的一侧上设有导流壳沉积槽66，所述前盖沉积槽和导流壳沉积槽形成所述沉积腔；所述叶轮包括底板和盖板，所述底板上设有用于形成螺旋形流道的弧形隔板67，底板中部设有与转子适配连接的叶轮安装孔68，所述盖板上设有所述进水通道；双流道水泵定子前盖结构还包括前盖固定座69，所述前盖固定座的外径与泵体外壳的内径大小适配，所述前盖固定座与泵体外壳之间安装有前盖密封圈70。
所述定子外壳的外部安装有加强骨架71，所述加强骨架包括与定子前盖连接的骨架前座72、与定子后盖连接的骨架后座73、连接骨架前座和骨架后座的骨架横梁74，以及若干个间隔设置、包覆在定子外壳上的加强环75。
在水泵工作过程中，流体从进水口进入水泵，然后进入导流壳的叶轮中，叶轮在转动的过程中，通过弧形隔板给流体提供动力，并将流体沿螺旋形流道向叶轮侧面甩出，离开叶轮的流体在导流壳内形成旋流，导流壳中的流体主要通过第一出口流向外流道，少部分流体通过第二出口流向内流道，从而对定子和转子进行散热；而水泵中存在的少量杂质，在旋流的作用下，向导流壳的中部汇聚，并随着流体流到第二出口处，由于沉积腔中的流体处于不流动的状态，杂质最终在沉积腔中沉积，不会进入内流道或外流道中。

Claims (8)

  1. 一种双流道散热水泵，其特征是，包括泵体，所述泵体包括泵体外壳，泵体外壳的前端设有进水口，泵体外壳的后端设有出水口，所述泵体外壳内设有定子和转子，泵体外壳与定子外壳之间形成外流道，定子外壳与转子之间形成内流道，所述定子的两端分别安装有定子前盖和定子后盖，所述定子前盖的前侧安装有导流壳，所述导流壳的外侧设有与外流道连通的第一出口，导流壳朝向定子前盖的一侧设有与内流道连通的第二出口，所述导流壳内设有叶轮安装槽，所述叶轮安装槽中安装有叶轮，所述叶轮与转子的转轴适配安装，所述叶轮前侧与进水口连通，叶轮的外侧面与导流壳内连通。
  2. 根据权利要求1所述的一种双流道散热水泵，其特征是，所述叶轮为圆盘形，叶轮内设有若干个与外侧连通的螺旋形流道，叶轮的一侧上设有叶轮进水通道，所述叶轮进水通道连通螺旋形流道和导流壳上的进水口。
  3. 根据权利要求2所述的一种双流道散热水泵，其特征是，所述叶轮使得导流壳内形成方向固定的旋流，所述第一出口包括位于导流壳外侧的第一出口外口和位于导流壳内侧的第一出口内口，所述第一出口内口的形状为弧形，并且与叶轮安装槽相切，所述导流壳朝向外流道的一侧上周向设有若干个由分隔板隔开的分隔槽，所述定子前盖与导流壳之间还设有沉积腔，所述沉积腔与第二出口连通，所述第二出口为与转子同轴的圆孔。
  4. 根据权利要求3所述的一种双流道散热水泵，其特征是，所述定子前盖在朝向导流壳的一侧上设有前盖沉积槽，所述导流壳在朝向定子前盖的一侧上设有导流壳沉积槽，所述前盖沉积槽和导流壳沉积槽形成所述沉积腔，所述沉积腔有若干个，周向均布在第二出口的外部。
  5. 根据权利要求1所述的一种双流道散热水泵，其特征是，所述定子外壳的外部安装有加强骨架，所述加强骨架包括与定子前盖连接的骨架前座、与定子后盖连接的骨架后座、连接骨架前座和骨架后座的骨架横梁，以及若干个间隔设置、包覆在定子外壳上的加强环。
  6. 根据权利要求1所述的一种双流道散热水泵，其特征是，所述定子前盖与转子的转轴之间安装有限流块，所述定子后盖与转子的转轴之间也安装有限流块，转子的转轴上还安装有止推块，限流块的内侧设有周向限流槽，限流块朝向止推块的一侧设有径向限流槽。
  7. 根据权利要求1所述的一种双流道散热水泵，其特征是，所述定子后盖包括与定子连接的定子连接座，所述定子连接座内设有出水腔，所述出水腔上设有与外流道连通的外流道开口，出水腔朝向定子的一侧设有与内流道连通的内流道开口，出水腔背向定子的一侧与出水口连通。
  8. 根据权利要求1所述的一种双流道散热水泵，其特征是，还包括与泵体连接的控制器，所述控制器包括控制器上盖和控制器底座，所述控制器上盖的上侧与泵体外壳的下侧贴合；所 述泵体前盖上设有前盖插接块，控制器上盖上设有与前盖插接块适配的前盖插接口，所述泵体后盖上设有后盖插接块，控制器上盖上设于与后盖插接块适配的后盖插接口。
PCT/CN2022/081975 2021-10-29 2022-03-21 一种双流道散热水泵 WO2023071035A1 (zh)

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