CN107370290A - A kind of electric machine structure in injection molding type electronic water pump - Google Patents

A kind of electric machine structure in injection molding type electronic water pump Download PDF

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Publication number
CN107370290A
CN107370290A CN201710694867.5A CN201710694867A CN107370290A CN 107370290 A CN107370290 A CN 107370290A CN 201710694867 A CN201710694867 A CN 201710694867A CN 107370290 A CN107370290 A CN 107370290A
Authority
CN
China
Prior art keywords
water pump
stator
rotor
armature
electric machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710694867.5A
Other languages
Chinese (zh)
Inventor
曹红飞
曹莹
宋志环
张小发
姜华
徐锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huayu Automotive Systems Co Ltd
Original Assignee
Huayu Automotive Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huayu Automotive Systems Co Ltd filed Critical Huayu Automotive Systems Co Ltd
Priority to CN201710694867.5A priority Critical patent/CN107370290A/en
Publication of CN107370290A publication Critical patent/CN107370290A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/08Sealings
    • F04D29/10Shaft sealings
    • F04D29/12Shaft sealings using sealing-rings
    • F04D29/126Shaft sealings using sealing-rings especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/22Rotors specially for centrifugal pumps
    • F04D29/2205Conventional flow pattern
    • F04D29/2222Construction and assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Abstract

A kind of electric machine structure in injection molding type electronic water pump, stator armature, mandrel, rear thrust pad are formed integrally by formula by injection structure, are integrated with the function of casing, armature, end cap, axle, separation sleeve, eliminate stator isolation nested structure;Magnet steel, magnet steel support are arranged in the injection block being formed integrally with armature spindle, eliminate the rotor separation sleeve in traditional structure, this two measures allow motor gas-gap to shorten, so that the use of the effectively material such as magnet steel and silicon steel sheet is reduced, it is improved power of motor density, holistic cost is reduced.The present invention is simple in construction, and cost is low, reliability is high.

Description

A kind of electric machine structure in injection molding type electronic water pump
Technical field:
The present invention relates to machine field, more particularly to electronic water pump for automobile technology, in particularly a kind of injection molding type electronic water pump Electric machine structure.
Background technology
New-energy automobile develops rapidly, because can discharge amount of heat, but system operation during its supporting battery-electric system operation Specified temp need to be maintained at less than, is cooled down so electronic water pump conveying coolant need to be used.
In the prior art, electronic water pump electric machine rotor by set separation sleeve to prevent to cool down corrosion stator and rotor iron cores, Magnet steel, being failed with seasonal armature insulation, this causes stator, rotor structures complicated, and reliability is low, and manufacturing cost is high, and motor gas-gap is big, Effective stock utilization is low, and power of motor density is low.
The content of the invention
It is an object of the invention to for drawbacks described above of the prior art, there is provided and it is a kind of effectively to simplify electric machine structure, improve electricity Machine reliability, reduce manufacturing cost, the injection reduce motor gas-gap, improve effective stock utilization, improving power of motor density Electric machine structure in formula electronic water pump.
Its main operational principle is that mandrel, rear thrust pad, armature are formed integrally into formula injection by plastic injection technique to determine Son, stator separation sleeve is eliminated, magnet steel, magnet steel support, axle are formed integrally formula injection rotor, eliminate rotor separation sleeve, electricity Machine air gap can shorten, and reduce the use of the effectively material such as magnet steel and silicon steel sheet, the reduction of effective material, the simplification of structure, material Expect the cheap of cost, be reduced motor holistic cost.The simplification of structure improves the reliability of motor.The reduction of air gap carries The high power density of motor.
To achieve the above object, the present invention uses following technical scheme:A kind of electric machine structure in injection molding type electronic water pump, It is described including motor stator component, motor rotor component, receded disk impeller component, preceding thrust pad, graphite bearing and water pump volute Water pump volute be tightly connected with described motor stator component, one end of water pump volute is provided with fluid intake, water pump volute Side be provided with fluid issuing, runner is provided between water pump volute and motor stator component, fluid intake passes through described Runner is communicated with fluid issuing, and receded disk impeller component is provided with runner, and described receded disk impeller component enters positioned at fluid Between mouth and fluid issuing, described stator module includes mandrel, armature, rear thrust pad, stator injection molded layers, described rotor Component includes armature spindle, rotor field spider, magnet steel and rotor injection molded layers, and tubulose sky is provided with the axle center of described armature spindle Chamber, graphite bearing press-in armature spindle simultaneously form revolute pair with mandrel, it is characterised in that:Described receded disk impeller component is coaxially solid Surely one end of described armature spindle is connected to, described stator module is made up of mandrel, armature, rear thrust pad, stator injection molded layers, Armature is coaxially arranged with stator module, described mandrel is arranged at the axle center of stator module, after one end of mandrel is provided with Thrust pad, described armature, mandrel and the injection of rear thrust pad are integral, stator injection molded layers have electric machine casing, end cap, stator every From the effect of set, the rotor assembly is made up of armature spindle, rotor field spider, magnet steel and rotor injection molded layers, rotor injection molded layers profile It is concentric with armature spindle, magnet steel support is provided with rotor injection molded layers, magnet steel, receded disk impeller are provided with described magnet steel support Component includes a lid towards armature spindle is provided with one end end face of water pump volute by hole in receded disk impeller component Plate, described cover plate is adjacent with the end face of stator module towards water pump volute and covers armature spindle and passes through hole.
Further, described stator injection molded layers and rotor injection molded layers are BMC duroplastic moulding materials blocks.
Further, graphite bearing is provided between armature spindle and mandrel.
Further, be coaxially arranged with a stainless steel washer on the inside of water pump volute with armature spindle, water pump volute with it is stainless Rubber washer is provided between steel washer.
Further, it is provided with sealing ring between water pump volute and the sealing surface of electric machine casing.
The present invention compares with prior art, and its effect is positive and obvious.The stator structure that injection is formed eliminates Stator separation sleeve in traditional structure, and the function of casing, armature, end cap, axle, separation sleeve is integrated with, it is molded the rotor of formation Structure eliminates the rotor separation sleeve in traditional structure, and this two measures shorten motor gas-gap, magnet steel and silicon steel sheet etc. The use of effective material is reduced, and is reduced motor holistic cost.The simplification of structure improves the reliability of motor.Gas The reduction of gap improves the power density of motor.The present invention is simple in construction, and cost is low, reliability is high.
Brief description of the drawings:
Fig. 1 is the structure chart of the present invention.
Embodiment:
Embodiment:
As shown in figure 1, the electric machine structure in a kind of injection molding type electronic water pump, including stator module and water pump volute 7, described water Pump volute 7 is tightly connected with described stator module, and one end of water pump volute 7 is provided with fluid intake, the side of water pump volute 7 It is provided with fluid issuing(Do not show in figure), runner is provided between water pump volute 7 and stator module, fluid intake passes through described Runner is communicated with fluid issuing, and receded disk impeller component 4 is provided with runner, and described receded disk impeller component 4 is located at fluid Be provided with armature 104 and rotor between entrance and fluid issuing, in stator module, described stator module include mandrel 101, Thrust pad 102, stator injection molded layers 103, armature 104 afterwards, described rotor assembly include magnet steel 201, rotor field spider 202, turned Sub- injection molded layers 203, armature spindle 204, tubular cavity are provided with the axle center of described armature spindle 204, graphite bearing 3,8 is set in Revolute pair is formed on described motor shaft 204 and with mandrel 101, described receded disk impeller component 4 is fixedly and coaxially connected in institute The one end for the armature spindle 204 stated, described stator module is by mandrel 101, armature 104, rear thrust pad 102, stator injection molded layers 103 Form, be coaxially arranged with armature 104 in stator module, described mandrel 101 is arranged at the axle center of stator module, mandrel 101 One end be provided with rear thrust pad 102, described armature 104, mandrel 101 and rear thrust pad 102 are molded integrally, stator injection Layer 103 has the function that electric machine casing, end cap, stator separation sleeve, and the rotor assembly is by armature spindle 204, rotor field spider, magnet steel 201 and rotor injection molded layers 203 form, the profile of rotor injection molded layers 203 and armature spindle 204 are concentric, are provided with rotor injection molded layers 203 Magnet steel support 202, is provided with magnet steel 201 on described magnet steel support 202, receded disk impeller component 4 towards water pump volute one End is provided with stator axis by hole in end face, includes a cover plate, described cover plate and stator pack in receded disk impeller component 4 The end face of part towards water pump volute is adjacent and covers armature spindle and passes through hole.
Further, described stator injection molded layers 103 and rotor injection molded layers 203 are BMC duroplastic moulding materials blocks.BMC Plastics temperature resistant range is wide(- 40 DEG C~150 DEG C), corrosion resistance height.
Further, graphite bearing 3,9 is provided between armature spindle 204 and mandrel 101.
Further, the inner side of water pump volute 7 is coaxially arranged with a stainless steel washer 6, water pump volute 7 with armature spindle 204 Rubber washer 5 is set between stainless steel washer 6.
Further, sealing ring 8 is provided between water pump volute 7 and the sealing surface of stator module.
The present invention compares with prior art, and its effect is positive and obvious.The stator structure that injection is formed eliminates Stator separation sleeve in traditional structure, and the function of casing, armature, end cap, axle, separation sleeve is integrated with, it is molded the rotor of formation Structure eliminates the rotor separation sleeve in traditional structure, and this two measures shorten motor gas-gap, make magnet steel and silicon steel sheet Use etc. effective material is reduced, and is reduced motor holistic cost.The simplification of structure improves the reliability of motor. The reduction of air gap improves the power density of motor.

Claims (5)

1. the electric machine structure in a kind of injection molding type electronic water pump, including motor stator component, motor rotor component, receded disk impeller Component, preceding thrust pad, graphite bearing and water pump volute, described water pump volute are tightly connected with described motor stator component, One end of water pump volute is provided with fluid intake, and the side of water pump volute is provided with fluid issuing, water pump volute and motor stator Runner is provided between component, fluid intake is communicated by described runner with fluid issuing, and centrifugal leaf is provided with runner Wheel assembly, for described receded disk impeller component between fluid intake and fluid issuing, described stator module includes core Axle, armature, rear thrust pad, stator injection molded layers, described rotor assembly include armature spindle, rotor field spider, magnet steel and rotor note Layer to be moulded, tubular cavity is provided with the axle center of described armature spindle, graphite bearing press-in armature spindle simultaneously forms revolute pair with mandrel, It is characterized in that:Described receded disk impeller component is fixedly and coaxially connected in one end of described armature spindle, described stator pack Part is made up of mandrel, armature, rear thrust pad, stator injection molded layers, and armature is coaxially arranged with stator module, and described mandrel is set At the axle center of stator module, one end of mandrel is provided with rear thrust pad, and described armature, mandrel and rear thrust pad are molded into one Body, stator injection molded layers have the function that electric machine casing, end cap, stator separation sleeve, and the rotor assembly is by armature spindle, rotor branch Frame, magnet steel and rotor injection molded layers are formed, and rotor injection molded layers profile and armature spindle are concentric, and magnet steel branch is provided with rotor injection molded layers Frame, is provided with magnet steel on described magnet steel support, and receded disk impeller component turns towards being provided with one end end face of water pump volute Sub- axle includes a cover plate by hole in receded disk impeller component, described cover plate and stator are towards the end face of water pump volute It is adjacent and cover armature spindle and pass through hole.
2. the electric machine structure in injection molding type electronic water pump as claimed in claim 1, it is characterised in that described stator injection molded layers and Rotor injection molded layers are BMC duroplastic moulding materials blocks.
3. the electric machine structure in injection molding type electronic water pump as claimed in claim 1, it is characterised in that set between armature spindle and mandrel It is equipped with graphite bearing.
4. the electric machine structure in injection molding type electronic water pump as claimed in claim 1, it is characterised in that water pump volute inner side and rotor Axle is coaxially arranged with a stainless steel washer, and rubber washer is provided between water pump volute and stainless steel washer.
5. the electric machine structure in injection molding type electronic water pump as claimed in claim 1, it is characterised in that water pump volute and electric machine casing Sealing surface between be provided with sealing ring.
CN201710694867.5A 2017-08-15 2017-08-15 A kind of electric machine structure in injection molding type electronic water pump Pending CN107370290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710694867.5A CN107370290A (en) 2017-08-15 2017-08-15 A kind of electric machine structure in injection molding type electronic water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710694867.5A CN107370290A (en) 2017-08-15 2017-08-15 A kind of electric machine structure in injection molding type electronic water pump

Publications (1)

Publication Number Publication Date
CN107370290A true CN107370290A (en) 2017-11-21

Family

ID=60309733

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710694867.5A Pending CN107370290A (en) 2017-08-15 2017-08-15 A kind of electric machine structure in injection molding type electronic water pump

Country Status (1)

Country Link
CN (1) CN107370290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111894902A (en) * 2020-06-10 2020-11-06 安徽银龙泵阀股份有限公司 Erosion-resistant isolation sleeve assembly for magnetic pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111894902A (en) * 2020-06-10 2020-11-06 安徽银龙泵阀股份有限公司 Erosion-resistant isolation sleeve assembly for magnetic pump

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