KR20170092305A - the Opening Structure of Drive End Frame for Inserting the Drive End Bearing - Google Patents

the Opening Structure of Drive End Frame for Inserting the Drive End Bearing Download PDF

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Publication number
KR20170092305A
KR20170092305A KR1020160013498A KR20160013498A KR20170092305A KR 20170092305 A KR20170092305 A KR 20170092305A KR 1020160013498 A KR1020160013498 A KR 1020160013498A KR 20160013498 A KR20160013498 A KR 20160013498A KR 20170092305 A KR20170092305 A KR 20170092305A
Authority
KR
South Korea
Prior art keywords
drive end
end frame
hollow portion
bearing
present
Prior art date
Application number
KR1020160013498A
Other languages
Korean (ko)
Inventor
한지석
손형일
김병길
Original Assignee
이래오토모티브시스템 주식회사
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.)
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Publication date
Application filed by 이래오토모티브시스템 주식회사 filed Critical 이래오토모티브시스템 주식회사
Priority to KR1020160013498A priority Critical patent/KR20170092305A/en
Publication of KR20170092305A publication Critical patent/KR20170092305A/en

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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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
    • 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
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor

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

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle alternator, and more particularly, to a hollow structure of a drive end frame in which a drive end bearing, which is a constitution of a vehicle alternator, is inserted.
According to an embodiment of the present invention, there is provided a voltage regulator comprising: a regulator for voltage regulation; A rectifier rectifying the three-phase AC into direct current; A stator assembly provided to generate a magnetic field; A rotor assembly for generating a magnetic field in synchronism with the stator assembly; And a housing formed of a drive end frame and a slip ring end frame, wherein a hollow portion is formed in the drive end frame so as to insert the drive end bearing, And a separation preventing protrusion protruded from the inner wall of the hollow portion at a predetermined height.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a drive end frame for a drive end frame,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle alternator, and more particularly, to a hollow structure of a drive end frame in which a drive end bearing, which is a constitution of a vehicle alternator, is inserted.

1 is a schematic cross-sectional view of an automotive alternator.

Referring to FIG. 1, a vehicle AC generator generally includes a rotor assembly 110, a stator assembly 120, a regulator assembly, a rectifier assembly 140, And an AC generator housing 100 fixed and supported by the pulley 150 and a pulley 150 receiving rotational power from the engine.

Specifically, the rotor assembly 110 is formed in a generally cylindrical shape and includes a rotor rotation shaft 111, a slip ring 112 formed at one end of the rotor rotation shaft 111, and two claw pole segments 113, 114, a field coil (coil) 130 positioned therebetween, and a magnet 115 opposed to the field coil. The rotor assembly 110 creates the rotating magnetic field needed to move the alternator. The stator assembly 120 is formed of a plurality of windings surrounding the rotor or a plurality of iron cores layered with thin steel plates to induce an alternating current.

In this process, many vibrations occur in the vehicle alternator.

The bearing surrounding the rotary shaft 111 of the rotor assembly must be stably fixed while being resistant to the vibration of the rotary shaft 111. Conventionally, the bearing is simply press-fitted into the frame, There is a problem that can not be prevented.

That is, when the bearing is not in a state in which the bearing is press-fitted, and the surface wears due to the frequent vibration and the resulting friction, if the tolerance becomes large, there is a possibility that the bearing is detached in the direction in which the bearing is initially pressed. Which is one of the factors for lowering the durability of the alternator.

In particular, unlike a slip ring end frame, which is located adjacent to a functional element such as a regulator, a rectifier assembly 140, or the like, and is compactly assembled, ) Are generally vulnerable to vibration because they do not have any other components around them.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hollow structure having a release preventing jaw in a drive end frame into which a bearing is inserted.

According to an aspect of the present invention, there is provided a voltage regulator comprising: a regulator for regulating a voltage according to an embodiment of the present invention; A rectifier rectifying the three-phase AC into direct current; A stator assembly provided to generate a magnetic field; A rotor assembly for generating a magnetic field in synchronism with the stator assembly; And a housing formed of a drive end frame and a slip ring end frame, wherein a hollow portion is formed in the drive end frame so as to insert the drive end bearing, And a separation preventing protrusion protruding from the inner wall of the hollow portion at a predetermined height.

The separation preventing jaw may be formed integrally with the drive end frame.

Here, the release preventing jaw may be formed by spinning an inner wall of the drive end hollow portion, or by injecting molten metal into a mold prepared and solidifying the molten metal.

Alternatively, the separation preventing jaw may be screwed to the drive end frame as a separate configuration from the drive end frame.

In addition, according to an embodiment of the present invention, the release preventing jaw may include a first inclined surface that is gently inclined toward the outside of the drive end frame about a protruding attachment, And a second inclined surface having a slope that is more urgent than the first inclined surface for prevention of departure after the first inclined surface.

Furthermore, the separation preventing jaw may be a ring structure continuously formed in the circumferential direction of the hollow portion.

According to the present invention, the drive end bearing located in the hollow portion of the drive end frame can be stably fixed.

1 is a cross-sectional view of a general automotive alternator.
2 is a cross-sectional view showing an inner wall of a hollow portion and a bearing according to a related art.
3 is a cross-sectional view illustrating an inner wall of a hollow portion and a bearing according to an embodiment of the present invention.
4 is a cross-sectional view illustrating an inner wall of a hollow portion and a bearing according to another embodiment of the present invention, which is different from that of FIG.
FIG. 5 is a cross-sectional perspective view of a drive end frame showing a state of engagement with a release preventing chuck according to an embodiment of the present invention. FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, the automotive alternator of the present invention will be described with reference to FIGS. 3 to 5. FIG. 3 is a cross-sectional view illustrating an inner wall of a hollow portion and a bearing according to an embodiment of the present invention. 4 is a cross-sectional view illustrating an inner wall of a hollow portion and a bearing according to another embodiment of the present invention, which is different from that of FIG. FIG. 5 is a cross-sectional perspective view of a drive end frame showing a state of engagement with a release preventing chuck according to an embodiment of the present invention. FIG.

The drive end frame of the present invention is an element of the alternator housing, which is disposed adjacent to the pulley 150 on the outside and stator assembly, rotor assembly 110 on the inside.

The automotive alternator according to an embodiment of the present invention includes: a regulator for voltage adjustment; A rectifier 140 for rectifying the three-phase AC into direct current; A stator assembly (120) provided to generate a magnetic field; A rotor assembly (110) for generating a magnetic field in synchronism with the stator assembly; And a housing formed of a drive end frame (200) and a slip ring end frame,

Particularly, the drive end frame 200 is formed with a hollow portion h for inserting the drive end bearing 300. In order to prevent the drive end bearing 300 from being detached after the drive end bearing 300 is inserted, (210, 220) protruding from the body (201) at a predetermined height.

The shape of the separation preventing tails 210 and 220 can be freely formed. For example, the protruding end portion may be blunt, the end portion may be sharp, or the inclined surface may have a generally curved shape. However, the drive end bearing 300 should be formed with a tolerance considering the dimension of the drive end bearing 300 so that the drive end bearing 300 can be sufficiently press-fit. It should be noted that the figures are shown in exaggerated sizes for clarity in FIGS. 4 and 5.

According to an embodiment of the present invention, the release brakes 210 and 220 may be formed integrally with the drive end frame 200. For example, when the drive end frame 200 is formed of a steel sheet, the release preventing tails 210 and 220 may be formed of an iron material having the same physical and chemical characteristics. When the drive end frame 200 is formed of synthetic resin, (210, 220) may also be formed of synthetic resin of the same material.

3, the distal end of the inner wall 201 of the conventional hollow h shown in FIG. 2 is spinned to form the release preventing tuck 210. Spinning refers to a process of changing the length (height) and sectional shape of the hollow inner wall 201 by controlling the roller or milling machine with high rigidity while rotating the drive end frame 200 at a high speed. Referring to FIG. 2, since the inner wall 201 of the hollow portion h is formed in a thin tube shape at the upper end (away from the side on which the drive end bearing is seated), the end portion thereof is molded, ). In other words, after the drive end bearing 300 is inserted into the hollow portion h of the drive end frame 200, the degree of freedom in the direction of the rotation axis of the bearing 300 is prevented by spinning.

Alternatively, as shown in FIG. 4, the molten metal may be injected into a prepared mold (mold frame) having an internal space corresponding to the shape of the release preventing chuck 220 and solidified. The molten metal at this time may be, for example, aluminum.

According to the embodiment of the present invention, the separation preventing jaw can be provided in a separate configuration not integral with the drive end frame 200. For example, the release preventing jaw may be configured to be screwed with the drive end frame 200. [

According to the spinning method, when the spinning force is weak, the drive end bearing 300 is shaken, and further, the entire alternator may shake and cause defective products. On the contrary, when the spinning force is strong, cracks are generated in the spinning region, which causes a problem that the fixing of the drive end bearing 300 becomes disadvantageous.

The release preventing jaw according to another embodiment of the present invention may be fastened to the drive end frame 200 by a screw coupling method instead of the spinning method.

5, the hollow portion h of the drive end frame 200 and the separation preventing jaw 220 are screwed to each other. When the hollow portion h of the first drive end frame 200 is formed, h of the release bushing 220 are fixed to the inner wall 201 and formed with a groove for guiding the bushing 220. After the bearing 300 is press-fitted into the bushing 220, It is possible to prevent deviation of the bearing.

In the meantime, unlike the spinning method described above, the screw-coupled drive end frame 200 according to an embodiment of the present invention, after taking the screw coupling method into the hollow portion h, presses the drive end bearing 300 You can also take the approach.

The release bounce tuck 220 according to an embodiment of the present invention includes a first inclined surface 221 which is gently inclined and a second inclined surface 221 which is sloped from the first inclined surface 221 to prevent departure after the drive end bearing 300 is press- And a second inclined surface 222 having a more urgent inclination.

The first inclined surface 221 is a surface tangent to the first end of the drive end bearing 300 when the drive end bearing 300 is inserted from the outside and is slidably inserted with a small force when the drive end bearing 300 is press- It is preferable to have a large obtuse angle alpha. The second inclined surface 222 prevents the drive end bearing 300 from moving freely in the direction of the rotational axis after the insertion of the drive end bearing 300 into the hollow portion h and forms a sloped surface so as to be fixed even in frequent vibrations. As shown in FIG. 4, the second inclined surface 222 preferably has an obtuse angle (?) Or acute angle with respect to the inner wall 201 of the hollow portion.

Fig. 5 is a cross-sectional perspective view showing the state of the drive end frame 200. As shown in Fig. Referring to FIG. 5, the release preventing jaw 220 according to an embodiment of the present invention may be a ring structure continuously formed in the circumferential direction of the hollow portion. The separation protrusion 220 of the ring structure allows the bearing 300 to be more stably fixed after being press-fitted into the hollow hole.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: AC generator housing
110: Rotor assembly
120: Stator assembly
130: Coil
140: rectifier
150: pulley
200: Drive end frame
300: Drive end bearing

Claims (7)

A regulator for voltage regulation; A rectifier rectifying the three-phase AC into direct current; A stator assembly provided to generate a magnetic field; A rotor assembly for generating a magnetic field in synchronism with the stator assembly; And a housing composed of a drive end frame and a slip ring end frame,
Further comprising a hollow portion formed in the drive end frame for inserting the drive end bearing, and a separation preventing protrusion protruding from the inner wall of the hollow portion at a predetermined height to prevent the drive end bearing from being inserted after the drive end bearing is inserted. generator.
The method according to claim 1,
And the separation preventing jaw is formed integrally with the drive end frame.
3. The method of claim 2,
And the release preventing jaw is formed by spinning the inner wall of the hollow portion.
3. The method of claim 2,
Characterized in that the release preventing jaw is formed by injecting molten metal into the prepared mold and solidifying it.
The method according to claim 1,
And the release preventing jaw is screwed to the drive end frame.
The method according to claim 1,
Wherein the release preventing jaw has a first inclined surface that is gently inclined toward the outside of the drive end frame about a protruding attachment and a second inclined surface that is inclined from the first inclined surface to prevent departure after the drive end bearing is press- And a second inclined surface having a steep slope.
The method according to claim 1,
Wherein the separation preventing jaw is a ring structure continuously formed in the circumferential direction of the hollow portion.

KR1020160013498A 2016-02-03 2016-02-03 the Opening Structure of Drive End Frame for Inserting the Drive End Bearing KR20170092305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160013498A KR20170092305A (en) 2016-02-03 2016-02-03 the Opening Structure of Drive End Frame for Inserting the Drive End Bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160013498A KR20170092305A (en) 2016-02-03 2016-02-03 the Opening Structure of Drive End Frame for Inserting the Drive End Bearing

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KR20170092305A true KR20170092305A (en) 2017-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021251610A1 (en) * 2020-06-10 2021-12-16 엘지이노텍 주식회사 Motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021251610A1 (en) * 2020-06-10 2021-12-16 엘지이노텍 주식회사 Motor

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