KR20140017205A - A bearing module for motor - Google Patents

A bearing module for motor Download PDF

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Publication number
KR20140017205A
KR20140017205A KR1020120083765A KR20120083765A KR20140017205A KR 20140017205 A KR20140017205 A KR 20140017205A KR 1020120083765 A KR1020120083765 A KR 1020120083765A KR 20120083765 A KR20120083765 A KR 20120083765A KR 20140017205 A KR20140017205 A KR 20140017205A
Authority
KR
South Korea
Prior art keywords
bearing
motor
holder
motor housing
module
Prior art date
Application number
KR1020120083765A
Other languages
Korean (ko)
Inventor
윤태호
Original Assignee
삼성전기주식회사
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 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020120083765A priority Critical patent/KR20140017205A/en
Publication of KR20140017205A publication Critical patent/KR20140017205A/en

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Classifications

    • 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
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • H02K7/08—Structural association with bearings

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

The bearing module of the motor according to an embodiment of the present invention is a bearing for rotatably supporting a rotating shaft, a bearing-ring coupled to an outer circumference of the bearing, coupled to an outer circumference of the bearing-ring, and a pressing protrusion is formed And a bearing-holder press-coupled to the motor housing by the pressing protrusion.

Description

A bearing module for motor < RTI ID = 0.0 >

The present invention relates to a bearing module of a motor.

In general, in the case of a motor including a rotating shaft, a ball bearing or the like is used so that the rotating shaft can rotate smoothly at a predetermined position. And the outer ring material of the ball bearing is mainly metal, and if the motor housing is made of metal, the outer ring is fixed with a bond after sliding assembly of the bearing.

On the other hand, when the motor housing is made of non-ferrous metal such as plastic or aluminum, the bearing is fixed to a separate part and then the assembly is bonded to the housing.

As a result, the ball bearing for an electric blower according to the prior art including the following patent document does not cause a problem in the motor noise and life performance when the outer ring is fixed to the motor housing, but the structure for this is complicated, robustness and reliability It has a problem of deterioration.

JP 1996-312594 A

The present invention has been made to solve the above problems, the first aspect of the present invention is to provide a bearing module of the motor that can be easily pressurized metal bearings to the motor housing.

According to the second aspect of the present invention, by insert-molding a bearing-holder made of a plastic material into a bearing-ring of a metal coupled to the bearing, the thermal expansion coefficient is different when the temperature of the bearing is increased according to the high speed rotation of the rotating shaft. This is to provide a bearing module of the motor does not cause problems.

The bearing module of the motor according to the first embodiment of the present invention includes a bearing for rotatably supporting a rotating shaft, a bearing ring coupled to an outer circumference of the bearing, and a pressure protrusion formed on an outer circumference of the bearing ring. And a bearing-holder press-coupled to the motor housing by the pressing protrusion.

In addition, the pressurizing protrusion of the bearing module of the motor according to the first embodiment of the present invention may have a plate-shaped free end coupled to an outer circumferential portion of the bearing-holder and the other end of the bearing module to have an elastic force. .

In addition, the pressing protrusion of the bearing module of the motor according to the first embodiment of the present invention may be formed in a plurality at equal intervals along the circumferential direction of the bearing-holder.

In addition, the bearing-holder of the bearing module of the motor according to the first embodiment of the present invention is further formed with a hook portion at the end of the pressing projection to prevent the axial deviation of the rotation axis with respect to the motor housing, the motor housing is the hook Fixed slits corresponding to the portions may be formed.

In addition, the bearing and the bearing-ring of the bearing module of the motor according to the first embodiment of the present invention may be made of a metal material.

In addition, the bearing-holder of the bearing module of the motor according to the first embodiment of the present invention is made of a plastic material, and can be integrated with the bearing-holder and insert injection molding.

In addition, the bearing of the bearing module of the motor according to the first embodiment of the present invention may be implemented as a ball bearing.

In addition, in the bearing module of the motor according to the second embodiment of the present invention, the bearing-holder prevents the axial deviation of the rotating shaft with respect to the motor housing, and one surface of the pressing projection facing the motor housing so as not to rotate. Fixing protrusions are further formed in the motor housing, and fixing grooves corresponding to the fixing protrusions are formed in the motor housing.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, the present invention has been made to solve the above problems, the first aspect of the present invention is to provide a bearing module of the motor that can be easily pressurized metal bearings to the motor housing. .

According to the second aspect of the present invention, by insert-molding a bearing-holder made of a plastic material into a bearing-ring of a metal coupled to the bearing, the thermal expansion coefficient is different when the temperature of the bearing is increased according to the high speed rotation of the rotating shaft. This is to provide a bearing module of the motor does not cause problems.

1 is a perspective view schematically showing a bearing module of a motor according to a first embodiment of the present invention;
Fig. 2 is a schematic exploded perspective view of the bearing module of the motor shown in Fig. 1; Fig.
3 is a partial cross-sectional perspective view showing a state in which the bearing module of the motor shown in FIG. 1 is partially cut in the state coupled to the motor housing;
4 is a cross-sectional view schematically showing a state in which a bearing module of the motor shown in FIG. 3 is coupled to a motor housing.
5 is a schematic partial sectional view of an electric blower mounted with a bearing module of a motor according to a first embodiment of the present invention;
Figure 6 is a schematic cross-sectional view showing a state in which the bearing module of the motor according to the second embodiment of the present invention is coupled to the motor housing.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. It is also to be understood that the terms "first,"" second, "" one side,"" other, "and the like are used to distinguish one element from another, no. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view schematically showing a bearing module of a motor according to a first embodiment of the present invention, and FIG. 2 is a schematic exploded perspective view of a bearing module of the motor shown in FIG. As shown, the bearing module 100 of the motor includes a bearing 110, a bearing-ring 120, and a bearing-holder 130.

More specifically, the bearing 110 is made of a cylindrical shape, a rotating shaft is inserted into the inner diameter portion, is supported to be rotatable. In addition, the bearing 110 may be implemented as a ball bearing.

The bearing ring 120 is coupled to the outer circumference of the bearing 110. To this end, the inner diameter of the bearing ring 120 has the same size as the outer diameter of the bearing 110.

At this time, the bearing 110 and the bearing-ring 120 is made of a metal material having the same or similar thermal expansion coefficient, and thus the problem caused by the difference in the thermal expansion coefficient at high speed rotation of the rotating shaft can be solved.

The bearing-holder 130 is coupled to the outer circumference of the bearing-ring 120. To this end, the inner diameter of the bearing-holder 130 and the outer diameter of the bearing-ring 120 have the same size.

In addition, the bearing-holder 130 is formed with a pressing protrusion 131 on the outer circumference thereof so that the bearing-holder 130 can be press-coupled to the motor housing (shown in FIG. 3). One end of the pressing protrusion may be coupled to an outer circumferential portion of the bearing-holder 130 to have an elastic force, and the other end opposite to the motor housing may have a free plate shape.

In addition, the pressing protrusion 131 may be implemented by implementing various quantities and sizes according to the degree of pressure coupling with the motor housing, and a plurality of pressing protrusions 131 are formed at equal intervals along the circumferential direction of the bearing-holder 130.

In addition, the bearing-holder 130 may be further provided with a hook portion 132 at the end of the pressing projection 131 to prevent the axial deviation of the rotation axis with respect to the motor housing, the rotation force is lowered.

The bearing ring 120 may be made of a plastic material, may be manufactured by being integrated with the bearing holder 130 and insert injection molding, and a bearing may be inserted into an inner diameter portion of the bearing ring 120.

Hereinafter, the coupling relationship between the bearing module and the motor housing of the motor according to the first embodiment of the present invention will be described in more detail.

3 is a partial cross-sectional perspective view showing a partially cut state in a state in which the bearing module of the motor shown in FIG. 1 is coupled to the motor housing, and FIG. 4 is a bearing module of the motor shown in FIG. 3 coupled to the motor housing. It is sectional drawing which shows schematically the turned state.

As shown, the bearing module 100 of the motor according to the first embodiment of the present invention is inserted into the inner peripheral surface of the motor housing 200. At this time, the bearing-holder 130 of the bearing module is press-coupled to the inner circumferential surface of the motor housing 200. More specifically, the pressing protrusion 131 of the bearing-holder 130 is in contact with the inner circumferential surface of the motor housing 200, and at this time, the pressing protrusion 131 is formed to support an elastic force, so that the bearing-holder 130 Is pressure-coupled to the motor housing 200.

In addition, the size of the outer diameter of the bearing-holder 130 formed of the outer circumferential surface of the pressing protrusion 131 may be greater than or greater than the size of the inner diameter of the motor housing 200. This is because when the size of the outer diameter of the bearing-holder 130 is smaller than the size of the inner diameter of the motor housing 200, the bearing-holder 130 does not contact the motor housing with respect to the radial direction of the rotation shaft.

In addition, the motor housing 200 is formed with a fixed slit 210 corresponding to the hook portion 132. The hook part 132 of the bearing-holder 130 is inserted into and coupled to the fixed slit 210 of the motor housing 200.

As such, the bearing module 100 of the motor according to the first embodiment of the present invention is fixed to the motor housing 200 to be prevented from being separated in the axial direction of the rotating shaft, and is pressure-coupled in the radial direction of the rotating shaft.

5 is a schematic partial cross-sectional view of an electric blower mounted with a bearing module of the motor according to the first embodiment of the present invention. As shown, the bearing module 100 of the motor is inserted into the rotating shaft 300 into the inner peripheral surface of the bearing 110, the rotating shaft 300 is supported to be rotatable.

In addition, the bearing module 100 of the motor is fixed to the motor housing 200 to be prevented from being separated in the axial direction of the rotation shaft, and is pressure-coupled in the radial direction of the rotation shaft.

As such, the bearing module of the motor according to the first embodiment of the present invention is the bearing 110 and the bearing-ring 120 is made of a metal material, according to the high-speed rotation of the rotating shaft 300 When the temperature increases, the bearing-holder 130 having an elastic force is coupled between the motor housing and the thermal expansion coefficient of the bearing 110 and the thermal expansion coefficient of the bearing-ring 120 are the same or similar. It can be implemented as a stable bearing module regardless of the degree of thermal expansion between the motor housing.

6 is a cross-sectional view schematically illustrating a state in which a bearing module of a motor according to a second embodiment of the present invention is coupled to a motor housing. As shown, the bearing module 100 'of the motor is different from the coupling structure of the bearing module and the motor housing as compared with the bearing module 100 of the motor according to the first embodiment shown in FIG.

More specifically, the bearing module 100 'of the motor includes a bearing 110', a bearing-ring 120 'and a bearing-holder 130'.

More specifically, as described above, the bearing 110 'and the bearing ring 120' may include the bearing 110 'and the bearing ring 120' of the bearing module 100 according to the first embodiment. Detailed description of the same shape is omitted.

The inner diameter of the bearing holder 130 ′ and the outer diameter of the bearing ring 120 ′ have the same size so that the bearing holder 130 ′ is coupled to the outer circumference of the bearing ring 120 ′.

In addition, the bearing-holder 130 ′ is provided with a pressing protrusion 131 ′ at an outer circumference thereof so that the bearing-holder 130 ′ can be press-coupled to the motor housing 200 ′. One end of the pressing protrusion may be coupled to an outer circumferential portion of the bearing-holder 130 to have an elastic force, and the other end opposite to the motor housing may have a free plate shape.

In addition, the bearing-holder 130 prevents the axial deviation of the rotation shaft with respect to the motor housing 200 'and is fixed to one surface of the pressing protrusion 131 opposite to the motor housing 200' so as not to rotate. 132 'is further formed.

In addition, a fixing groove 210 'corresponding to the fixing protrusion 132' is formed in the motor housing 200 '.

In this way, the bearing module 100 'of the motor according to the first embodiment of the present invention according to the second embodiment of the present invention is fixed to the motor housing 200' so as to prevent the departure in the axial direction of the rotating shaft, It is fixed not to rotate and is pressure-coupled in the radial direction of the rotating shaft.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100, 100 ': bearing module of motor
110, 110 ': Bearing
120, 120 ': Bearing-ring
130, 130 ': Bearing-holder
200, 200 ': motor housing
300: rotation axis
131, 131 ': pressing projection 132: hook portion
210: fixing slit 210 ': fixing groove

Claims (8)

A bearing for rotatably supporting the rotating shaft;
A bearing ring coupled to an outer circumference of the bearing; And
The bearing module of the motor is coupled to the outer peripheral portion of the bearing ring, the pressing projection is formed, the bearing-holder is pressed against the motor housing by the pressing projection.
The method according to claim 1,
The pressing projection has a elastic force, the bearing module of the motor, characterized in that one end is coupled to the outer peripheral portion of the bearing-holder and the other end is a plate-shaped free end facing the motor housing.
The method according to claim 2,
The pressurizing protrusion is a bearing module, characterized in that formed in plural at equal intervals along the circumferential direction of the bearing-holder.
The method according to claim 1,
The bearing-holder is a bearing module of the motor, characterized in that the hook portion is further formed at the end of the pressing projection to prevent the axial deviation of the rotation axis with respect to the motor housing, the motor housing is formed with a fixed slit corresponding to the hook portion .
The method according to claim 1,
The bearing and the bearing-ring is a bearing module of the motor, characterized in that made of a metallic material.
The method according to claim 1,
The bearing-holder is made of a plastic material, the bearing module of the motor, characterized in that integrated with the bearing-holder and insert injection molding.
The method according to claim 1,
The bearing-holder prevents the axial deviation of the rotation shaft with respect to the motor housing, and a fixing protrusion is further formed on one surface of the pressing protrusion facing the motor housing so as not to rotate, and the motor housing has a fixing protrusion on the fixing protrusion. Bearing module of the motor, characterized in that the corresponding fixing groove is formed.
The method according to claim 1,
The bearing module of the motor, characterized in that the bearing is a ball bearing.
KR1020120083765A 2012-07-31 2012-07-31 A bearing module for motor KR20140017205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120083765A KR20140017205A (en) 2012-07-31 2012-07-31 A bearing module for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120083765A KR20140017205A (en) 2012-07-31 2012-07-31 A bearing module for motor

Publications (1)

Publication Number Publication Date
KR20140017205A true KR20140017205A (en) 2014-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120083765A KR20140017205A (en) 2012-07-31 2012-07-31 A bearing module for motor

Country Status (1)

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KR (1) KR20140017205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220052491A (en) * 2020-10-21 2022-04-28 (주)타마스 Motor having Structure for Preventing Breakaway of Armature Assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220052491A (en) * 2020-10-21 2022-04-28 (주)타마스 Motor having Structure for Preventing Breakaway of Armature Assembly

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