WO2019223043A1 - 一种风冷式防喷淋电机结构 - Google Patents

一种风冷式防喷淋电机结构 Download PDF

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Publication number
WO2019223043A1
WO2019223043A1 PCT/CN2018/091314 CN2018091314W WO2019223043A1 WO 2019223043 A1 WO2019223043 A1 WO 2019223043A1 CN 2018091314 W CN2018091314 W CN 2018091314W WO 2019223043 A1 WO2019223043 A1 WO 2019223043A1
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Prior art keywords
motor
air
cover
end cover
spray
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PCT/CN2018/091314
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English (en)
French (fr)
Inventor
王晛
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苏州优德通力科技有限公司
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Priority to US16/417,638 priority Critical patent/US20190363603A1/en
Publication of WO2019223043A1 publication Critical patent/WO2019223043A1/zh

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    • 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
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • 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
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the utility model relates to the field of processing and manufacturing of household pumps, in particular to an air-cooled spray-proof motor structure.
  • the enclosed motor usually uses a centrifugal fan to blow and cool the motor casing.
  • the interior of the motor is closed, and the heat dissipation effect is poor. Motor burnout accidents often occur.
  • the axial flow fan has been widely used in the internal heat dissipation of the motor, it is only used in the structure of the open type motor, and the open type motor cannot meet the application requirements that require anti-spray, or it must be added outside the open type motor.
  • the anti-spray device greatly increases the production cost and installation volume.
  • the technical problem that the utility model mainly solves is to provide an air-cooled anti-spray motor structure with good heat dissipation effect.
  • a technical solution adopted by the present utility model is to provide an air-cooled anti-spray motor structure, including: a front cover, a motor housing, a motor stator, a motor rotor, a shaft, a rear cover, and axial flow.
  • Fan and windshield, the motor stator and the motor rotor are arranged inside the motor housing, the motor rotor is arranged inside the motor stator, the front end cover is connected to the front end of the motor housing through the shaft, and the rear end cover is passed through the shaft
  • the axial flow fan is connected to the rear end of the motor casing.
  • the axial flow fan is connected to the rear of the rear end cover through a shaft.
  • the axial flow fan is provided with a hood around the front cover.
  • the front cover is provided with a front cover ventilation hole.
  • the front cover ventilation hole includes a first ventilation hole and a second ventilation hole, and the rear cover is provided with a rear cover ventilation hole.
  • the axial flow fan blows cold air into the motor through the rear cover ventilation holes of the rear cover, directs air to the motor stator and the motor rotor to radiate heat, and then the hot air passes through the front cover. Vents on the front cover.
  • part of the wind is blown to the motor casing so that the motor casing can be ventilated and dissipated.
  • the front cover includes: a pump connection side, a motor connection side, and a middle portion.
  • the upper part of the middle part of the front end cover is provided with an arc-shaped rain cover to prevent the motor from being sprayed.
  • the lower part of the middle part of the front cover is provided with a second ventilation hole so as to further discharge the hot air discharged from the inside of the motor into the air.
  • the motor connection side of the front end cover is provided with a first ventilation hole so as to discharge the hot air inside the motor.
  • a third ventilation hole is formed on the rear end surface of the air hood.
  • a small hole is formed at the bottom of the air hood.
  • the beneficial effect of the utility model is that the air-cooled anti-spray motor structure pointed out by the utility model changes the front end cover and the rear end cover of the traditional closed motor into structures with ventilation holes, and at the same time changes the centrifugal fan It is changed to an axial flow fan.
  • the axial flow fan directly directs the motor stator and the motor rotor inside the motor to blow heat away, and exhausts the internal heat of the motor through the front cover ventilation holes.
  • part of the wind force is like a centrifugal fan.
  • the quasi-motor casing blows air, and the heat dissipation effect is good; the upper part of the front end cover of the motor is provided with a curved rain cover, the lower part of the middle part is provided with a ventilation hole, and the motor connection side is also provided with a ventilation hole. A small hole is opened at the bottom of the motor hood This structure design not only guarantees the anti-spray technology requirements of the motor, but also breaks the application limit that the traditional axial flow fan can only be used for open-type motors.
  • FIG. 1 is an exploded view of an air-cooled spray-proof motor structure of the present invention
  • FIG. 2 is an overall view of a structure of an air-cooled spray-proof motor of the present invention
  • FIG. 3 is a cross-sectional view of a structure of an air-cooled sprinkler motor according to the present invention.
  • FIG. 4 is a front view of a front cover of an air-cooled sprinkler motor structure of the present invention.
  • FIG. 5 is a perspective view of a front end cover of an air-cooled sprinkler motor structure of the present invention.
  • FIG. 6 is a front view of a rear end cover of an air-cooled spray-proof motor structure of the present invention.
  • FIG. 7 is a perspective view of a rear end cover of an air-cooled sprinkler motor structure of the present invention.
  • FIG. 8 is a front view of an air hood of an air-cooled sprinkler motor structure of the present invention.
  • FIG. 9 is a perspective view of an air hood of an air-cooled sprinkler motor structure of the present invention.
  • the embodiment of the present invention includes:
  • An air-cooled anti-spray motor structure includes: a front cover 1, a motor housing 2, a motor stator 16, a motor rotor 17, a shaft 3, a rear cover 4, an axial flow fan 5 and a wind cover 6, the motor stator 16 and the motor rotor 17 are provided inside the motor housing 2, the motor rotor 17 is provided inside the motor stator 16, the front end cover 1 is connected to the front end of the motor housing 2 through the shaft 3, and the rear end cover 4 is passed through the shaft 3 is connected to the rear end of the motor casing 2; the axial flow fan 5 is connected to the rear of the rear end cover 4 through the shaft 3; the axial flow fan 5 is provided with a wind shield 6 on the periphery, and the front cover 1 is opened There is a front cover vent hole, which includes a first vent hole 7 and a second vent hole 8, and the rear end cover 4 is provided with a rear cover vent hole 9.
  • the axial flow fan 5 first blows cold air into the motor housing 2 through the rear cover ventilation holes 9 of the rear cover 4 and directs the air to the motor stator 16 and the motor rotor 17 to dissipate heat, and then passes the hot air through the front end.
  • the front cover of the cover 1 is vented.
  • part of the wind like the centrifugal fan is blown to the motor casing, and the heat dissipation effect is good.
  • the traditional centrifugal fan is blown to the motor casing. The heat dissipation effect is poor.
  • the front cover 1 includes a three-part structure, a pump connection side 10, a motor connection side 11 and an intermediate portion 12, the pump connection side 10 is connected to the pump, the motor connection side 11 is connected to the front end of the motor housing 2, and the motor connection side 11 is provided with a first A ventilation hole 7, the middle portion 12 plays the role of ventilation and heat dissipation and fixed support.
  • the upper portion of the middle portion 12 is provided with a curved rain cover 13 and the lower portion of the middle portion 12 is provided with a second ventilation hole 8. Spraying requirements prevent rainwater from entering the motor and can ventilate and dissipate heat.
  • a third ventilation hole 14 is provided on the rear end surface of the air hood 6 to prevent fingers from entering and improve the safety of the motor.
  • a small hole 15 is provided at the bottom of the air hood 6 to facilitate drainage, so that even if a small amount of rainwater enters, it can be discharged through the small hole 15 at the bottom of the air hood 6 and will not enter the motor to ensure the safe operation of the motor.
  • the air-cooled anti-spray motor structure pointed out by the present utility model changes the front cover and the rear cover of the traditional closed motor into structures with ventilation holes, and changes the centrifugal fan to the shaft.
  • the flow fan so that the axial flow fan directly directs the motor stator and the motor rotor inside the motor to blow heat away, and exhausts the internal heat of the motor through the front cover ventilation holes.
  • part of the wind is directed to the motor casing like a centrifugal fan.
  • the blower has good heat dissipation effect; the upper part of the front end cover of the motor is provided with a curved rain cover, the lower part of the middle part is provided with a ventilation hole, the motor connection side is also provided with a ventilation hole, and a small hole is opened at the bottom of the motor hood.
  • the structural design not only guarantees the anti-spray technology requirements of the motor, but also breaks the application limit of the traditional axial flow fan that can only be used for open-type motors.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

本实用新型公开了一种风冷式防喷淋电机结构，包括：前端盖、电机外壳、电机定子、电机转子、轴、后端盖、轴流式风扇和风罩，所述电机定子和电机转子设置在电机外壳内部，所述电机转子设置在电机定子内部，所述前端盖穿过轴与电机外壳的前端连接，所述后端盖穿过轴与电机外壳的后端连接，所述轴流式风扇穿过轴连接于后端盖的后方，所述轴流式风扇外围设置有风罩，所述前端盖开设有前端盖通风孔，所述后端盖开设有后端盖通风孔，所述前端盖包括：泵连接侧、电机连接侧和中间部分。通过上述方式，本实用新型提供的风冷式防喷淋电机结构，既起到防雨淋的作用，同时散热效果好。

Description

一种风冷式防喷淋电机结构 技术领域
本实用新型涉及家用泵的加工与制造领域，特别是涉及一种风冷式防喷淋电机结构。
背景技术
目前，家用泵，很多产品由于有防喷淋要求，采用封闭式电机。但是封闭式电机通常采用离心式风扇，对电机外壳进行吹风散热，电机内部是封闭的，散热效果差，经常发生电机烧毁事故。虽然轴流式风扇已经广泛应用于电机内部散热，但仅用于敞开式的电机结构中，而敞开式的电机不能满足需要防喷淋要求的应用场合，或者必须要在敞开式电机外部加个防喷淋的装置，大大增加了生产成本和安装体积。
发明内容
本实用新型主要解决的技术问题是提供一种风冷式防喷淋电机结构，散热效果好。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供一种风冷 式防喷淋电机结构，包括：前端盖、电机外壳、电机定子、电机转子、轴、后端盖、轴流式风扇和风罩，所述电机定子和电机转子设置在电机外壳内部，所述电机转子设置在电机定子内部，所述前端盖穿过轴与电机外壳的前端连接，所述后端盖穿过轴与电机外壳的后端连接，所述轴流式风扇穿过轴连接于后端盖的后方，所述轴流式风扇外围设置有风罩，所述前端盖开设有前端盖通风孔，所述前端盖通风孔包括：第一通风孔和第二通风孔，所述后端盖开设有后端盖通风孔。
在本实用新型一个较佳实施例中，所述轴流式风扇将冷风通过后端盖的后端盖通风孔吹到电机内部，对准电机定子和电机转子直接吹风散热，然后热风通过前端盖的前端盖通风孔排出。
在本实用新型一个较佳实施例中，部分风力对准所述电机外壳吹风以便于电机外壳可以通风散热。
在本实用新型一个较佳实施例中，所述前端盖包括：泵连接侧、电机连接侧和中间部分。
在本实用新型一个较佳实施例中，所述前端盖的中间部分上部分带有弧形防雨罩以便于防喷淋保护电机。
在本实用新型一个较佳实施例中，所述前端盖的中间部分下部分带有第二通风孔以便于将电机内部排出的热气进一步排放到空气中。
在本实用新型一个较佳实施例中，所述前端盖的电机连接侧带有第一通风孔以便于将电机内部的热气排出。
在本实用新型一个较佳实施例中，所述风罩后端面开设有第三通风孔。
在本实用新型一个较佳实施例中，所述风罩底部开设有小孔。
本实用新型的有益效果是：本实用新型指出的一种风冷式防喷淋电机结构，将传统的封闭式电机的前端盖和后端盖改为带通风孔的结构，同时将离心式风扇改为轴流式风扇，这样轴流式风扇一方面直接对准电机内部的电机定子和电机转子吹风散热，将电机内部热量通过前端盖通风孔排出，另一方面像离心式风扇那样部分风力对准电机外壳吹风，散热效果好；电机前端盖中间部分上部分带有弧形防雨罩，中间部分下部分带有通风孔，电机连接侧也带有通风孔，电机风罩底部开个小孔，这样的结构设计既保证了电机的防喷淋技术要求，又打破了传统轴流式风扇只能用于敞开式电机的应用限制。
附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本实用新型一种风冷式防喷淋电机结构的爆炸图；
图2是本实用新型一种风冷式防喷淋电机结构的整体图；
图3是本实用新型一种风冷式防喷淋电机结构的剖视图；
图4是本实用新型一种风冷式防喷淋电机结构的前端盖的正视图；
图5是本实用新型一种风冷式防喷淋电机结构的前端盖的立体图；
图6是本实用新型一种风冷式防喷淋电机结构的后端盖的正视图；
图7是本实用新型一种风冷式防喷淋电机结构的后端盖的立体图；
图8是本实用新型一种风冷式防喷淋电机结构的风罩的正视图；
图9是本实用新型一种风冷式防喷淋电机结构的风罩的立体图。
具体实施方式
下面将对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1-9，本实用新型实施例包括：
一种风冷式防喷淋电机结构，包括：前端盖1、电机外壳2、电机定子16、电机转子17、轴3、后端盖4、轴流式风扇5和风罩6，所述电机定子16和电机转子17设置在电机外壳2内部，所述电机转子17设置在电机定子16内部，所述前端盖1穿过轴3与电机外壳2的前端连接，所述后端盖4穿过轴3与电机外壳2的后端连接，所述轴流式风扇5穿过轴3连接于后端盖4的后方，所述轴流式风扇5外围设置有风罩6，所述前端盖1开设有前端盖通风孔，所述前端盖通风孔包括：第一通风孔7和第二通风孔8，所述后端盖4开设有后端盖通 风孔9。
所述轴流式风扇5一方面先将冷风通过后端盖4的后端盖通风孔9吹到电机外壳2内部，并对准电机定子16和电机转子17直接吹风散热，再将热风通过前端盖1的前端盖通风孔排出，另一方面像离心式风扇那样部分风力对准电机外壳吹风，散热效果好，传统离心式风扇对准电机外壳吹风，仅靠电机外壳2与冷空气接触散热，散热效果很差。
所述前端盖1包括三部分结构，泵连接侧10，电机连接侧11和中间部分12，泵连接侧10与泵连接，电机连接侧11与电机外壳2前端连接，电机连接侧11带有第一通风孔7，中间部分12起通风散热以及固定支撑的作用，中间部分12上部分带有弧形防雨罩13，中间部分12下部分带有第二通风孔8，这样既可以做到防喷淋要求，防止雨水进入电机内部，又可以通风散热，虽然轴流式风扇已经广泛应用于电机内部散热，但仅用于敞开式的电机结构中，而敞开式的电机不能满足需要防喷淋要求的应用场合，或者必须要在敞开式电机外部加个防喷淋的装置，大大增加了生产成本和安装体积，限制了应用范围，采用本实用新型的电机结构，无需额外添加防喷淋装置，减小了安装体积，减少了生产成本，扩大了应用范围。
所述风罩6后端面开设有第三通风孔14，防止手指伸入，提高了电机的安全性。
所述风罩6底部开设有小孔15，方便排水，这样即使有少量雨水进入，也可以通过风罩6底部小孔15排出，不会进入电机内部，保证电机安全运行。
综上所述，本实用新型指出的一种风冷式防喷淋电机结构，将传统的封闭式电机的前端盖和后端盖改为带通风孔的结构，同时将离心式风扇改为轴流式风扇，这样轴流式风扇一方面直接对准电机内部的电机定子和电机转子吹风散 热，将电机内部热量通过前端盖通风孔排出，另一方面像离心式风扇那样部分风力对准电机外壳吹风，散热效果好；电机前端盖中间部分上部分带有弧形防雨罩，中间部分下部分带有通风孔，电机连接侧也带有通风孔，电机风罩底部开个小孔，这样的结构设计既保证了电机的防喷淋技术要求，又打破了传统轴流式风扇只能用于敞开式电机的应用限制。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (9)

  1. 一种风冷式防喷淋电机结构，其特征在于，包括：前端盖、电机外壳、电机定子、电机转子、轴、后端盖、轴流式风扇和风罩，所述电机定子和电机转子设置在电机外壳内部，所述电机转子设置在电机定子内部，所述前端盖穿过轴与电机外壳的前端连接，所述后端盖穿过轴与电机外壳的后端连接，所述轴流式风扇穿过轴连接于后端盖的后方，所述轴流式风扇外围设置有风罩，所述前端盖开设有前端盖通风孔，所述前端盖通风孔包括：第一通风孔和第二通风孔，所述后端盖开设有后端盖通风孔。
  2. 根据权利要求1所述的风冷式防喷淋电机结构，其特征在于，所述轴流式风扇将冷风通过后端盖的后端盖通风孔吹到电机内部，对准电机定子和电机转子直接吹风散热，然后热风通过前端盖的前端盖通风孔排出。
  3. 根据权利要求1所述的风冷式防喷淋电机结构，其特征在于，部分风力对准所述电机外壳吹风以便于电机外壳可以通风散热。
  4. 根据权利要求1所述的风冷式防喷淋电机结构，其特征在于，所述前端盖包括：泵连接侧、电机连接侧和中间部分。
  5. 根据权利要求4所述的风冷式防喷淋电机结构，其特征在于，所述前端盖的中间部分上部分带有弧形防雨罩以便于防喷淋保护电机。
  6. 根据权利要求4所述的风冷式防喷淋电机结构，其特征在于，所述前端盖的中间部分下部分带有第二通风孔以便于将电机内部排出的热气进一步排放到空气中。
  7. 根据权利要求4所述的风冷式防喷淋电机结构，其特征在于，所述前端盖的电机连接侧带有第一通风孔以便于将电机内部的热气排出。
  8. 根据权利要求1所述的风冷式防喷淋电机结构，其特征在于，所述风罩 后端面开设有第三通风孔。
  9. 根据权利要求1所述的风冷式防喷淋电机结构，其特征在于，所述风罩底部开设有小孔。
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