KR20140078793A - Sensor magnet device for motor - Google Patents
Sensor magnet device for motor Download PDFInfo
- Publication number
- KR20140078793A KR20140078793A KR1020120147303A KR20120147303A KR20140078793A KR 20140078793 A KR20140078793 A KR 20140078793A KR 1020120147303 A KR1020120147303 A KR 1020120147303A KR 20120147303 A KR20120147303 A KR 20120147303A KR 20140078793 A KR20140078793 A KR 20140078793A
- Authority
- KR
- South Korea
- Prior art keywords
- shaft
- support member
- motor
- support
- magnet
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- 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
- H02K7/003—Couplings; Details of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
The present invention relates to a sensor magnet device for a motor that can be made light in weight and downsized in size.
According to an embodiment of the present invention, there is provided a sensor magnet apparatus for a motor, comprising: a shaft connected to a motor and having a step formed on one side; A support member in the form of a container having an insertion hole into which the shaft is inserted and in which the insertion hole is fixed to a step of the shaft; And a magnet accommodated in the space between the support member and the shaft and embedded therein.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sensor magnet device, and more particularly, to a sensor magnet device for a motor for detecting the drive of a motor.
BACKGROUND ART Transmission of an automobile includes a motor, which is manually operated according to a clutch operation of a user or is automatically operated in accordance with a speed by a mission.
Such a motor generally comprises a shaft and a rotor and a stator including a magnet fixed to the shaft, and a sensor magnet device is installed together for accurate control of the motor.
The sensor magnet device is connected to the shaft of the motor and rotates together with the motor. By detecting the displacement of the sensor magnet device using the Hall IC (Hall IC), it is possible to detect the driving state of the motor .
In recent years, efforts have been made to reduce the weight of components in automobiles and miniaturize the size of the automobile, and the above-described sensor magnet apparatus also has problems of weight reduction and miniaturization as accessories of motors.
SUMMARY OF THE INVENTION The present invention provides a sensor magnet unit for a motor which is light in weight and small in size.
In order to achieve the above object, according to an embodiment of the present invention, there is provided a motor comprising: a shaft connected to a motor and having a step formed on one side; A support member in the form of a container having an insertion hole into which the shaft is inserted and in which the insertion hole is fixed to a step of the shaft; And a magnet accommodated in the space between the support member and the shaft and embedded in the space.
Wherein the supporting member has one side contacting the step portion of the shaft and having a predetermined height along the side surface of the shaft to form the insertion hole therein; A support plate bent from the other side of the support tube; And a guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet.
Wherein the support member comprises: a support plate having the insertion hole formed at a center thereof; And a guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet.
Wherein the supporting member has one side contacting the step portion of the shaft and having a predetermined height along the side surface of the shaft to form the insertion hole therein; A support plate bent from one side of the support tube; And a guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet.
According to another embodiment of the present invention, there is provided a motor including a shaft connected to a motor and having a step formed at one side thereof; A support member having a flat plate shape and having a support pipe formed at one side of the shaft and having a predetermined height along the side surface of the shaft and forming an insertion hole into which the shaft is inserted; And a magnet inserted into the support tube to be installed on the support member.
The support member includes a support plate bent from one side of the support tube.
The support member includes a support plate extending from an outer side of a predetermined height from one side of the support tube.
The support member is formed by press working.
According to the present invention, the volume of the magnet can be reduced, so that the weight of the sensor magnet device as a whole is reduced and the size is reduced.
Further, according to the present invention, since the support member and the magnet are fixed using the step portion, the pressure input of the magnet to the shaft is improved.
In addition, by reducing the volume of the magnet, the material cost for the magnet can be reduced.
1 is a side sectional view of a sensor magnet unit for a motor according to a first embodiment of the present invention,
2 is a top view of a sensor magnet apparatus for a motor according to a first embodiment of the present invention,
3 is a side sectional view of a sensor magnet apparatus for a motor according to a second embodiment of the present invention,
4 is a top view of a sensor magnet apparatus for a motor according to a second embodiment of the present invention,
Figs. 5 and 6 are views showing another embodiment of the support member shown in Fig. 3,
7 is a side sectional view of a sensor magnet apparatus for a motor according to a third embodiment of the present invention,
8 is a view showing an upper surface of a sensor magnet apparatus for a motor according to a third embodiment of the present invention, and Fig.
9 is a view showing another embodiment of the support member shown in Fig.
The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. The term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.
It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.
Likewise, when an element such as a layer, film, region, plate, or the like is referred to as being "on" another element, it includes not only the element directly above another element, . Conversely, when an element is referred to as being "directly on" another element, it means that there are no other elements in between.
The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.
FIG. 1 and FIG. 2 show a sensor magnet unit for a motor according to a first embodiment of the present invention, each showing a side end surface and an upper surface.
1 and 2, a sensor magnet apparatus according to a first embodiment of the present invention includes a
The
The
In the sensor magnet apparatus of the first embodiment as shown in Figs. 1 and 2, the bending structure of the
In addition, since the
Since the
In response to such a problem, the present invention proposes a second embodiment in which the weight of the sensor magnet apparatus can be reduced in weight and size can be reduced while improving the pressure input of the
FIG. 3 is a side sectional view of a sensor magnet apparatus for a motor according to a second embodiment of the present invention, and FIG. 4 is a top view thereof.
3 and 4, a sensor magnet apparatus for a motor according to a second embodiment of the present invention includes a
The
The
A
3, the
The
The
The
The
Figs. 5 and 6 are views showing other embodiments of the
In the embodiment of FIG. 5, the support member 210 has the
5 includes a
In the embodiment of FIG. 6, the
6, the
The
Referring to FIGS. 1 and 2, the sensor magnet apparatus according to the second embodiment of the present invention shown in FIGS. 3 and 4 is compared with the sensor magnet apparatus according to the first embodiment. The basic constitution including the
However, in the second embodiment, as shown in FIGS. 3 and 4, the
In addition, since the supporting
The
In the present invention, since the
On the other hand, the
FIGS. 7 and 8 are views showing a sensor magnet apparatus according to a third embodiment of the present invention, wherein FIG. 7 is a side sectional view and FIG. 8 is a top view thereof.
7 and 8, the structure of the
7 and 8, the
The
The
9 is a view showing another embodiment of the
9, it is the same as the embodiment of FIG. 7 that the
9, the
Although not shown in the drawing, the sensor magnet device according to the present invention may be combined with a Hall IC for detecting a displacement of the sensor magnet device. At this time, by arranging the Hall IC on the
The structure of the shaft, support member, and magnet of the present invention as described above can be applied to a sensor magnet apparatus as well as a motor having a structure in which a shaft and a magnet are coupled.
In addition, the scope of application is not limited to the motor of the automotive transmission, and it can be applied to any motor that senses the drive.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that
10, 100: Shaft
101:
20, 200, 210, 220, 230, 240:
201, 211, 221, 231, 241: insertion hole
202, 222, 232, 242: support pipe
203, 212, 223, 233, 243:
204, 213, and 224:
300: Magnet
Claims (8)
A support member in the form of a container having an insertion hole into which the shaft is inserted and in which the insertion hole is fixed to a step of the shaft; And
A magnet disposed in the space between the support member and the shaft and embedded in the space,
And a sensor magnet unit for a motor.
Wherein the support member comprises:
A support tube having one side contacting the step of the shaft and having a predetermined height along a side surface of the shaft to form the insertion hole therein;
A support plate bent from the other side of the support tube; And
A guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet,
And a sensor magnet unit for a motor.
Wherein the support member comprises:
A support plate having the insertion hole formed at its center; And
A guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet,
And a sensor magnet unit for a motor.
Wherein the support member comprises:
A support tube having one side contacting the step of the shaft and having a predetermined height along a side surface of the shaft to form the insertion hole therein;
A support plate bent from one side of the support tube; And
A guide portion bent from the outer side of the support plate to provide a space for accommodating the magnet,
And a sensor magnet unit for a motor.
A support member having a flat plate shape and having a support pipe formed at one side of the shaft and having a predetermined height along the side surface of the shaft and forming an insertion hole into which the shaft is inserted; And
A magnet disposed on the support member so as to surround the support tube,
And a sensor magnet unit for a motor.
Wherein the support member includes a support plate bent from one side of the support pipe.
Wherein the support member includes a support plate extending from an outer side of a predetermined height from one side of the support tube.
Wherein the supporting member is formed by press working.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120147303A KR20140078793A (en) | 2012-12-17 | 2012-12-17 | Sensor magnet device for motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120147303A KR20140078793A (en) | 2012-12-17 | 2012-12-17 | Sensor magnet device for motor |
Publications (1)
Publication Number | Publication Date |
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KR20140078793A true KR20140078793A (en) | 2014-06-26 |
Family
ID=51130165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120147303A KR20140078793A (en) | 2012-12-17 | 2012-12-17 | Sensor magnet device for motor |
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KR (1) | KR20140078793A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170054907A (en) * | 2015-11-10 | 2017-05-18 | 엘지이노텍 주식회사 | Shaft assembly for motor and motor having the same |
CN109923769A (en) * | 2016-11-16 | 2019-06-21 | 三菱电机株式会社 | Device for detecting rotational position |
-
2012
- 2012-12-17 KR KR1020120147303A patent/KR20140078793A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170054907A (en) * | 2015-11-10 | 2017-05-18 | 엘지이노텍 주식회사 | Shaft assembly for motor and motor having the same |
CN109923769A (en) * | 2016-11-16 | 2019-06-21 | 三菱电机株式会社 | Device for detecting rotational position |
CN109923769B (en) * | 2016-11-16 | 2021-06-11 | 三菱电机株式会社 | Rotational position detecting device |
US11204261B2 (en) | 2016-11-16 | 2021-12-21 | Mitsubishi Electric Corporation | Rotational position detection device |
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