CN107947438B - Method for mounting efficient energy-saving plastic package motor - Google Patents

Method for mounting efficient energy-saving plastic package motor Download PDF

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Publication number
CN107947438B
CN107947438B CN201711374276.6A CN201711374276A CN107947438B CN 107947438 B CN107947438 B CN 107947438B CN 201711374276 A CN201711374276 A CN 201711374276A CN 107947438 B CN107947438 B CN 107947438B
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China
Prior art keywords
end cover
plastic package
rear end
package body
motor
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CN201711374276.6A
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Chinese (zh)
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CN107947438A (en
Inventor
韩潮军
施建江
王金海
方飞
陶江良
赵金峰
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Hangzhou Jiangnan Electric Co ltd
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Hangzhou Jiangnan Electric Co ltd
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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention relates to a high-efficiency energy-saving plastic package motor and an installation method thereof, wherein the motor comprises a middle plastic package body, a rear end cover, fixing lugs, a rotating shaft, a rotor and a stator, wherein the rear end of the middle plastic package body is provided with the rear end cover, the middle plastic package body and the rear end cover are provided with the fixing lugs, the rear end cover is installed on the middle plastic package body through fixing bolts, the front end of the middle plastic package body is provided with a front end cover, and the front end cover is adhered with the middle plastic package body into a whole in an adhesive manner; the middle part of the inner side surface of the front end cover is provided with a through hole, and a front sealing sleeve is arranged on the outer side of the front end cover and is arranged on the outer side of the through hole; the inner side surface of the front end cover is provided with a dampproof disc. The plastic package motor integrally divides the motor into three parts, wherein the front end cover and the rear end cover are respectively provided with the dampproof disc, so that the inside of the plastic package motor is always in a dry state, and the energy consumption of the motor can be effectively reduced. The circulation hole arranged on the middle plastic package body can carry out circulation cooling on air inside the motor, so that the rotor and each part are in a low-temperature working environment, the consumption of electric energy of the motor due to excessive heat generation can be reduced, and the low-temperature environment is favorable for the motor to keep a high-efficiency working state for a long time.

Description

Method for mounting efficient energy-saving plastic package motor
Technical Field
The invention relates to a high-efficiency energy-saving plastic package motor and an installation method thereof, and belongs to the field of motors.
Background
The plastic package motor adopts plastic packaging technology to integrally package the stator core, windings and the like of the motor by engineering plastics, and can cancel the traditional motor stator insulation treatment process and the metal shell of the common motor. The micro-special motor is applied to household appliances such as dust collectors, smoke exhaust hoods, air conditioners, washing machines and the like and fans for instruments. The plastic package motor is developed and produced at home and abroad, and has a good prospect due to a series of advantages which are not available in the metal shell motor. Specifically, the plastic package motor comprises a plastic package stator assembly, a rotor assembly penetrating through the inner side of the plastic package stator assembly and an outer end cover arranged at one end outside the plastic package stator assembly, wherein the installation structure of the conventional plastic package motor is formed on the plastic package stator assembly through injection molding of a die or on the outer end cover through molding of the die. Plastic package motors have a certain waterproof function, and thus, people are gradually applying plastic package motors in humid environments. Although the plastic package motor has a certain waterproof function, the plastic package motor is not in a complete sealing state, and moisture can be accumulated in the plastic package motor in a long-term use process, so that the moisture can cause interference to the normal operation of the motor, and the power consumption of the motor is increased. In addition, because the stator of plastic envelope motor is wrapped by the shell, and the motor is located inside the plastic shell generally, in the long-time work of motor, the inside heat that produces of motor can't distribute, and this can lead to inside parts to produce the inflation, can further increase the friction between each part, causes the motor consumption to increase. At present, no solution exists for ensuring the inside of the plastic package motor to be in a dry environment for a long time and ensuring the inside of the plastic package motor to be in a low-temperature environment, and the problems can affect the energy consumption and the working efficiency of the plastic powder motor, so that further research on the plastic powder motor is needed for solving the problems.
Disclosure of Invention
The invention aims to provide a plastic package motor capable of keeping the inside of the motor dry and a low-temperature working environment for a long time, so that the working performance of the plastic package motor is improved, the energy consumption is reduced, and the purposes of high efficiency and energy conservation are achieved.
The utility model provides a high-efficient energy-conserving plastic envelope motor and installation method thereof, includes middle part plastic envelope body, rear end cap, fixed ear, pivot, rotor, stator, and wherein middle part plastic envelope body rear end sets up the rear end cap, sets up the fixed ear on middle part plastic envelope body and rear end cap, and the rear end cap passes through fixing bolt to be installed on the middle part plastic envelope body, and at the fixed stator that sets up in the middle part plastic envelope body, rotor and pivot fixed mounting, and the rotor is installed at middle part plastic envelope body middle part, its characterized in that: the front end of the middle plastic package body is provided with a front end cover, and the front end cover is adhered with the middle plastic package body into a whole in an adhering manner; the middle part of the inner side surface of the front end cover is provided with a through hole, a front end bearing is arranged in the through hole, the rotating shaft penetrates through the front end bearing, and a front sealing sleeve is arranged on the outer side of the front end cover and is arranged on the outer side of the through hole; a moisture-proof disc is arranged on the inner side surface of the front end cover and fixedly installed through screws; the inner side surface of the front end cover is provided with an annular groove, the edge of the inner side surface of the front end cover is uniformly provided with an end cover circulating hole, and the lower end of the end cover circulating hole is communicated with the annular groove; the front end of the circulating hole is abutted against the end cover circulating hole on the front end cover, and the rear end of the circulating hole is bent towards the axis of the middle plastic package body and penetrates through the inner wall of the middle plastic package body; the middle part of the inner side surface of the rear end cover is provided with a mounting groove, a rear bearing sleeve is arranged in the mounting groove, a rear end bearing is arranged in the rear bearing sleeve, and the rear end of the rotating shaft is arranged in the rear end bearing; a moisture-proof disc is fixedly arranged on the inner side surface of the rear end cover through a screw, is pressed on the rear bearing sleeve and limits the rear bearing sleeve in the mounting groove; and sealing gaskets are respectively arranged on the inner side surface of the rear end cover and the rear end surface of the middle plastic package body.
Among the above-mentioned plastic envelope motor, divide into three parts with the motor is whole, wherein be provided with dampproofing dish on front end housing and the rear end cap respectively, dampproofing dish's effect lies in getting rid of the inside steam of plastic envelope motor, makes the inside dry state that is in all the time of plastic envelope motor, this can effectively reduce the energy consumption. In addition, the circulation hole arranged on the middle plastic package body and the end cover circulation hole arranged on the front end cover can promote the circulation of air in the plastic package motor body, the temperature of the air in the plastic package motor body is increased along with the rotation of the rotor and the friction between the components, the air can vertically circulate in the circulation hole and the end cover circulation hole, the temperature is reduced when the air passes through the circulation hole, the cooled air enters the motor through circulation, so that the rotor and the components are in a low-temperature working environment, the consumption of electric energy of the motor due to excessive heat generation can be reduced, and the low-temperature environment is favorable for the motor to keep a high-efficiency working state for a long time.
As the preferable scheme, dampproofing dish includes the fixed disk, and the front of fixed disk is provided with the recess, and installs the dry piece in the recess.
As a preferable scheme, the front surface of the sealing gasket is wavy, and the sealing gasket on the rear end cover and the waves on the front surface of the sealing gasket on the rear end surface of the middle plastic package body are mutually matched. The connecting surface of the two sealing gaskets is wavy, which is favorable for the full contact of the sealing gaskets and ensures the good sealing between the rear end cover and the middle plastic package body.
Preferably, the inner side surface of the front end cover is provided with a bearing groove, and the moisture-proof disc on the front end cover is arranged in the bearing groove.
Preferably, the rear end bearing is fixedly arranged in the rear bearing sleeve, and the width of the rear bearing sleeve is wider than that of the rear end bearing. The width of the rear bearing sleeve is set to be wider than the width of the rear end bearing, so that the rear end of the rotating shaft can be arranged in the rear end bearing, the rear end face of the rotating shaft is prevented from contacting the rear end cover, friction between the rotating shaft and the rear end cover is avoided, and the purpose of avoiding energy consumption is achieved.
Preferably, the rear bearing sleeve is detachably mounted in the mounting groove. The detachable rear bearing sleeve is convenient for later maintenance and disassembly, and is convenient for people to maintain and clean the rear bearing sleeve and the rear end bearing.
As a preferable scheme, the periphery of the rear bearing sleeve is provided with a clamping head, and correspondingly, the edge of the mounting groove is provided with a clamping groove matched with the clamping head. Through set up the dop on the back bearing housing, can prevent back bearing housing rotation or vibrations at motor rotation in-process back bearing housing card in the mounting groove, improve the stability of this plastic envelope motor, noise abatement.
The method for installing the high-efficiency energy-saving plastic package motor comprises the steps of installing a moistureproof disc at the middle part of the inner side surface of a front end cover by using screws, installing a front end bearing in a through hole in the middle part of the front end cover, then hot-melting the edge of the rear side surface of the front end cover and the front end surface of a middle plastic package body, and tightly attaching two hot-melting surfaces to finish the fixed installation of the front end cover and the middle plastic package body, wherein in the process, the alignment of a circulation hole and an end cover circulation hole is ensured; then the rotor and the rotating shaft are installed from the rear part of the middle plastic package body, the front end of the rotating shaft penetrates through the front end bearing, the rear end cover is covered at the moment, the rear end cover and the middle plastic package body are fixedly installed through the fixing bolts, and after the rotating shaft is installed, the front sealing sleeve is installed on the front end cover.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front side view of the present invention in a disassembled state.
Fig. 3 is a rear side view of the present invention in a disassembled state.
Fig. 4 is a schematic structural view of the front end cover of the present invention.
Fig. 5 is a schematic diagram of a split structure of the rear end cap of the present invention.
Fig. 6 is a schematic diagram of a half-section structure of a middle molding compound of the present invention.
Fig. 7 is a schematic view of the structure of the moisture-proof disc of the present invention.
In the figure, a middle plastic package body 1, a front end cover 2, a rear end cover 3, a fixing lug 4, a rotating shaft 5, a front sealing sleeve 6, a rotor 7, a stator 8, a moisture-proof disc 9, a sealing gasket 11, a fixing bolt 12, a circulating hole 13, an end cover circulating hole 14, an annular groove 15, a front end bearing 16, a bearing groove 17, a rear bearing sleeve 18, a mounting groove 19, a clamping groove 20, a clamping head 21, a rear end bearing 22, a fixing disc 91, a drying sheet 92 and a screw 93.
Detailed Description
As shown in the figure, the efficient energy-saving plastic package motor and the mounting method thereof comprise a middle plastic package body 1, a rear end cover 3, a fixing lug 4, a rotating shaft 5, a rotor 7 and a stator 8, wherein the rear end of the middle plastic package body 1 is provided with the rear end cover 3, the fixing lug 4 is arranged on the middle plastic package body 1 and the rear end cover 3, the rear end cover 3 is mounted on the middle plastic package body 1 through a fixing bolt 12, the stator 8 is fixedly arranged in the middle plastic package body 1, the rotor 7 and the rotating shaft 5 are fixedly mounted, and the rotor 7 is mounted in the middle of the middle plastic package body 1. The front end of the middle plastic package body 1 is provided with a front end cover 2, the front end cover 2 is adhered with the middle plastic package body 1 into a whole in an adhering manner, in production, the rear end face of the front end cover 2 and the front end face of the middle plastic package body 1 can be melted, and then the two end faces are adhered. A through hole is formed in the middle of the inner side surface of the front end cover 2, a front end bearing 16 is arranged in the through hole, the rotating shaft 5 passes through the front end bearing 16, and a front sealing sleeve 6 is arranged on the outer side of the front end cover 2 and is arranged on the outer side of the through hole; a moisture-proof disc 9 is arranged on the inner side surface of the front end cover 2, and the moisture-proof disc 9 is fixedly arranged through a screw 93; an annular groove 15 is formed in the inner side surface of the front end cover 2, end cover circulating holes 14 are uniformly formed in the edge of the inner side surface of the front end cover 2, and the lower end of each end cover circulating hole 14 is communicated with the annular groove 15; the inside of the annular wall of the middle plastic package body 1 is transversely provided with a circulating hole 13, the front end of the circulating hole 13 is abutted against an end cover circulating hole 14 on the front end cover 2, and the rear end of the circulating hole 13 is bent towards the axis of the middle plastic package body 1 and penetrates through the inner wall of the middle plastic package body 1; the middle part of the inner side surface of the rear end cover 3 is provided with a mounting groove 19, a rear bearing sleeve 18 is arranged in the mounting groove 19, a rear end bearing 22 is arranged in the rear bearing sleeve 18, and the rear end of the rotating shaft 5 is arranged in the rear end bearing 22; a moisture-proof disc 9 is fixedly arranged on the inner side surface of the rear end cover 3 through a screw 93, the moisture-proof disc 9 is pressed on the rear bearing sleeve 18, and the rear bearing sleeve 18 is limited in the mounting groove 19; and sealing gaskets 11 are respectively arranged on the inner side surface of the rear end cover 3 and the rear end surface of the middle plastic package body 1. The moisture-proof disc 9 comprises a fixed disc 91, a groove is arranged on the front surface of the fixed disc 91, and a drying sheet 92 is arranged in the groove. The front surface of the sealing gasket 11 is wavy, and the sealing gasket 11 on the rear end cover 3 and the waves on the front surface of the sealing gasket 11 on the rear end surface of the middle plastic package body 1 are mutually matched. The contact surfaces of the two sealing gaskets 11 are wavy, which is favorable for the full contact of the sealing gaskets 11 and ensures the good sealing between the rear end cover 3 and the middle plastic package body 1. The inner side surface of the front end cover 2 is provided with a bearing groove 17, and a moisture-proof disc 9 on the front end cover 2 is arranged in the bearing groove 17. The rear end bearing 22 is fixedly disposed within the rear bearing housing 18, and the rear bearing housing 18 has a width that is wider than the width of the rear end bearing 22. The width of the rear bearing sleeve 18 is set to be wider than the width of the rear end bearing 22, so that the rear end of the rotating shaft 5 can be arranged in the rear end bearing 22, the rear end face of the rotating shaft 5 is prevented from contacting the rear end cover 3, friction between the rotating shaft 5 and the rear end cover 3 is avoided, and the purpose of avoiding energy consumption is achieved. The rear bearing housing 18 is detachably mounted in the mounting groove 19. The detachable rear bearing sleeve 18 is convenient for later maintenance and disassembly, and is convenient for people to maintain and clean the rear bearing sleeve 18 and the rear end bearing 22. The periphery of the rear bearing sleeve 18 is provided with a clamping head 21, and correspondingly, the edge of the mounting groove 19 is provided with a clamping groove 20 matched with the clamping head 21. By arranging the clamping head 21 on the rear bearing sleeve 18, the rear bearing sleeve 18 can be clamped in the mounting groove 19, so that the rear bearing sleeve 18 is prevented from rotating or vibrating in the motor rotation process, the stability of the plastic package motor is improved, and the noise is reduced.
The front end cover 2 of the plastic package motor is fixedly connected with the middle plastic package body 1, the through hole arranged in the middle of the front end cover 2 only can be penetrated by the rotating shaft 5, and the rear end cover 3 of the motor is detachably arranged at the rear end of the middle plastic package body 1, so that the rotating shaft 5 and the integrally designed stator 8 are inserted from the rear end of the middle plastic package body 1 when the motor is assembled, and then the rear end cover 3 is arranged.
The invention designs a high-efficiency energy-saving plastic package motor and an installation method thereof, wherein the motor is integrally divided into three parts, wherein a front end cover and a rear end cover are respectively provided with a dampproof disc, and the dampproof disc has the function of removing water vapor in the plastic package motor so that the inside of the plastic package motor is always in a dry state, thereby effectively reducing the energy consumption of the motor. In addition, the circulation hole arranged on the middle plastic package body and the end cover circulation hole arranged on the front end cover can promote the circulation of air in the plastic package motor body, the temperature of the air in the plastic package motor body is increased along with the rotation of the rotor and the friction between the components, the air can vertically circulate in the circulation hole and the end cover circulation hole, the temperature is reduced when the air passes through the circulation hole, the cooled air enters the motor through circulation, so that the rotor and the components are in a low-temperature working environment, the consumption of electric energy of the motor due to excessive heat generation can be reduced, and the low-temperature environment is favorable for the motor to keep a high-efficiency working state for a long time.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims (2)

1. The utility model provides a mounting method of energy-efficient plastic envelope motor, the plastic envelope motor includes middle part plastic envelope body, rear end cap, fixed ear, pivot, rotor, stator, and wherein middle part plastic envelope body rear end sets up the rear end cap, sets up the fixed ear on middle part plastic envelope body and rear end cap, and the rear end cap passes through fixing bolt to be installed on the middle part plastic envelope body, and the fixed stator that sets up in the middle part plastic envelope body, rotor and pivot fixed mounting, and the rotor is installed at middle part plastic envelope body middle part, its characterized in that: the front end of the middle plastic package body is provided with a front end cover, and the front end cover is adhered with the middle plastic package body into a whole in an adhering manner; the middle part of the inner side surface of the front end cover is provided with a through hole, a front end bearing is arranged in the through hole, the rotating shaft penetrates through the front end bearing, and a front sealing sleeve is arranged on the outer side of the front end cover and is arranged on the outer side of the through hole; a moisture-proof disc is arranged on the inner side surface of the front end cover and fixedly installed through screws; the inner side surface of the front end cover is provided with an annular groove, the edge of the inner side surface of the front end cover is uniformly provided with an end cover circulating hole, and the lower end of the end cover circulating hole is communicated with the annular groove; the front end of the circulating hole is abutted against the end cover circulating hole on the front end cover, and the rear end of the circulating hole is bent towards the axis of the middle plastic package body and penetrates through the inner wall of the middle plastic package body; the middle part of the inner side surface of the rear end cover is provided with a mounting groove, a rear bearing sleeve is arranged in the mounting groove, a rear end bearing is arranged in the rear bearing sleeve, and the rear end of the rotating shaft is arranged in the rear end bearing; a moisture-proof disc is fixedly arranged on the inner side surface of the rear end cover through a screw, is pressed on the rear bearing sleeve and limits the rear bearing sleeve in the mounting groove; sealing gaskets are respectively arranged on the inner side surface of the rear end cover and the rear end surface of the middle plastic package body; the moistureproof disc comprises a fixed disc, a groove is formed in the front face of the fixed disc, and a drying sheet is arranged in the groove; the front surface of the sealing gasket is wavy, and the sealing gasket on the rear end cover is matched with the waves on the front surface of the sealing gasket on the rear end surface of the middle plastic package body; the inner side surface of the front end cover is provided with a bearing groove, and a damp-proof disc on the front end cover is arranged in the bearing groove; the rear end bearing is fixedly arranged in the rear bearing sleeve, and the width of the rear bearing sleeve is wider than that of the rear end bearing; the rear bearing sleeve is detachably arranged in the mounting groove; the periphery of back bearing housing sets up the dop, sets up correspondingly at mounting groove edge and dop complex draw-in groove, its characterized in that: the method comprises the steps of installing a moistureproof disc in the middle of the inner side surface of a front end cover by using a screw, installing a front end bearing in a through hole in the middle of the front end cover, then hot-melting the edge of the rear side surface of the front end cover and the front end surface of a middle plastic package body, and tightly attaching the two hot-melting surfaces to finish the fixed installation of the front end cover and the middle plastic package body, wherein in the process, the alignment of a circulation hole and an end cover circulation hole is ensured; and then the rotor and the rotating shaft are installed from the rear part of the middle plastic package body, the front end of the rotating shaft penetrates through the front end bearing, the rear end cover is covered at the moment, and the rear end cover and the middle plastic package body are fixedly installed through the fixing bolts.
2. The method for installing the efficient and energy-saving plastic package motor according to claim 1, wherein the method comprises the following steps: after the rotating shaft is installed, the front sealing sleeve is installed on the front end cover.
CN201711374276.6A 2017-12-19 2017-12-19 Method for mounting efficient energy-saving plastic package motor Active CN107947438B (en)

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CN107947438B true CN107947438B (en) 2023-06-06

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Publication number Priority date Publication date Assignee Title
CN113410950B (en) * 2021-06-29 2022-05-13 绍兴凯森厨卫有限公司 Plastic package motor for range hood

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CN205960853U (en) * 2016-07-11 2017-02-15 天津辰宝机电科技有限公司 Special electric machine that very high speediness separating centrifuge was used

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