KR20170086918A - BUSBAR assembly, motor and vehicle having the same - Google Patents

Abstract

The present invention relates to a bearing assembly comprising: a cover body including a bearing seat; A terminal coupled to the cover body to include a connection end projecting outwardly of the cover body; A flange portion extending from the cover body to include a fastening means and a reinforcing frame contained in the cover body and surrounding the bearing seating portion to provide a bearing mounting structure , The structure is simplified, and the assembly process is reduced.

Description

A bus bar assembly, a motor, and a vehicle including the same,

Embodiments relate to a bus bar assembly including a bearing seat, a motor and a vehicle including the same.

A motor is a device that converts electrical energy into rotational energy using the force that a conductor receives in a magnetic field. A typical motor includes a shaft rotatably formed, a rotor coupled to the shaft, and a stator fixed to the housing. A stator is provided with a gap along the circumference of the rotor, and a coil forming a rotating magnetic field is wound on the stator.

In the case of a split core type stator, an annular bus bar (BUSBAR) is provided on the stator. The coil of the stator is electrically connected to the bus bar via a coil terminal.

On the other hand, the shaft of the motor is rotatably supported by the bearing. Recently, an external force is added in the axial direction of the motor. Therefore, motors combining bearings and wave washers that support an axial load such as an angular bearing have been proposed.

These bearings are provided in the housing. Depending on the type of motor, a separate cover for inserting the bay ring is also provided. However, such a structure in which the bearing is inserted into the separate cover has a problem that not only the manufacturing process is increased but also the manufacturing cost is increased.

Further, there is a problem that a separate process and parts must be added in order to seal between the cover of the motor and the housing of the motor. Further, there is a problem that a process of assembling the cover to the housing of the motor is added.

In order to solve the above problems, the embodiment provides a bus bar assembly, a motor, and a vehicle including the same, which can simplify the structure by omitting a separate cover of the housing and increase the rigidity of the mounting structure of the bearing For that purpose.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned here can be understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an electronic apparatus comprising: a cover body including a bearing seat; a terminal coupled to the cover body so as to include a connection end projecting outwardly of the cover body; And a reinforcing frame included in the inside of the cover body and surrounding the bearing seat.

Preferably, the flange portion may include a first frame disposed along the periphery of the bearing seat portion, and a second frame bent in the first frame.

Preferably, the first frame is formed in a cylindrical shape such that a bearing seat is located on the inner side, and the second frame is formed in a flange shape extending in a radial direction of the first frame.

Preferably, the cover body may include a stator seating portion formed concavely along the periphery of the bearing seating portion.

According to another aspect of the present invention, there is provided a stator including a housing, a stator coupled to the housing and wound with a coil, a rotor disposed inside the stator, a shaft coupled to the rotor, And a bearing seating portion on which the bearing is seated; a terminal protruding outside the cover body and coupled to the cover body so as to include a connection end connected to the coil; And a reinforcing frame which is contained in the cover body and surrounds the bearing seating part. The motor assembly of the present invention can be used as a motor for a motor vehicle.

Preferably, the flange portion may include a first frame disposed along the periphery of the bearing seat portion, and a second frame bent in the first frame.

Preferably, the first frame is formed in a cylindrical shape such that a bearing seat is located on the inner side, and the second frame is formed in a flange shape extending in a radial direction of the first frame.

Preferably, the cover body may include a stator seating portion formed concavely along the periphery of the bearing seating portion to seat the stator.

According to another aspect of the present invention, there is provided a stator including a housing, a stator coupled to the housing and wound with a coil, a rotor disposed inside the stator, a shaft coupled to the rotor, A cover body including a bearing to support the bearing and a bearing seat on which the bearing is seated; a terminal coupled to the cover body so as to include a connection end protruding outside the cover body and connected to the coil; And a reinforcing frame that is contained in the cover body and surrounds the bearing seat, and a motor including the motor, wherein the bus bar assembly includes a motor .

According to the embodiment, there is provided a structure in which the bus bar and the cover are integrated and the bearing is seated, thereby providing a favorable effect of simplifying the structure and reducing the assembly process.

According to the embodiment, a reinforcing frame is provided to provide an advantageous effect of increasing the rigidity of the bearing seat.

1 shows a motor according to an embodiment,
FIG. 2 is a view showing the bus bar assembly shown in FIG. 1,
3 is a view showing a reinforcing frame,
4 is a sectional view of the cover body.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 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. The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms and the inventor should properly define the concept of the term in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view showing a motor according to an embodiment.

Referring to FIG. 1, a motor according to an embodiment of the present invention includes a housing 100, a stator 200, a rotor 300, a shaft 400, a bearing 500, (600).

The housing 100 is formed in a cylindrical shape and has a space in which the stator 200 and the rotor 300 can be mounted. At this time, the shape and material of the housing 100 may be variously modified, but a metal material that can withstand high temperatures can be selected because of the characteristics of being mounted on a vehicle. The housing 100 may be configured to shield the stator 200 and the rotor 300 from the outside.

The stator 200 may include a plurality of stator cores, and each stator core may be wound with a coil forming a rotating magnetic field. The coil wound around the stator core may be insulated by an insulator. However, the present invention is not limited thereto, and the stator may be formed into a single core.

The rotor 300 may be rotatably installed in the stator 200. The rotor is provided with a plurality of magnets. According to the magnet mounting method, an IPM (Inner Permanent Magnet) motor in which a magnet is inserted and coupled to the inside of the rotor core, a SPM (Surface Permanent Magnet) Respectively. In the IPM motor, when a magnet longer than the width is inserted into the rotor, a spoke type rotor assembly having a spoke shape can be formed. These spoke type motors have high output densities.

When a current is supplied to the coil wound around the stator 300, electrical interaction with the rotor 300 is induced to induce rotation of the rotor 300. When the rotor 300 rotates, the shaft 400 rotates to provide power.

And the shaft 400 is coupled to the rotor 300.

The bearing 500 rotatably supports the shaft 400.

FIG. 2 is a view showing the bus bar assembly shown in FIG. 1. FIG. This figure 2 clearly shows only the main feature parts in order to conceptually clearly understand the invention, and as a result various variations of the illustration are expected, and the scope of the invention need not be limited by the specific shapes shown in the figures none.

The bus bar assembly 500 may include a cover body 610, a terminal 620, and a flange portion 630.

The cover body 610 includes a terminal 620 therein. A bearing seating portion 611 may be formed at the center of the cover body 610. A bearing 500 for supporting the shaft 400 is seated on the bearing seating portion 611. And the cover body 610 may include a stator seat 612. The stator seating portion 612 is configured to protrude from the cover body 610 and come into contact with the stator 200, thereby reducing the assembly tolerance.

The connection end of the terminal 620 protrudes to the outside of the cover body 610. The terminal 620 may be a power terminal and a neutral terminal. The power terminals can be connected to each phase (U, V, W) of the three-phase power supply. The neutral terminal is disposed on the stator 200 to connect the coils wound on the stator 200 in parallel, and may be fused to the terminals of the coils.

The flange portion 630 is disposed along the periphery of the cover body 610 and may be provided with a fastening means 650 such as a fastening hole. The flange portion 630 may be coupled to the housing 100 through the fastening member. And the flange portion 630 may be formed in the cover body 140 in the radial direction. And may be formed to form a step with the cover body 610 to secure an exposed region of the terminal 620. [

The position of the fastening means 650 may be arranged at a suitable position so that when the bus bar assembly 600 is fastened to the housing, the connection end of the coil wound on the stator 200 is aligned with the terminal 620.

Here, the cover body 6100 and the flange portion 630 may be one member molded and formed only by being described according to their shape and functional characteristics.

Fig. 3 is a view showing a reinforcing frame, and Fig. 4 is a sectional view of a cover body.

The reinforcing frame 640 is included in the cover body 610 to enhance the rigidity of the bearing seating portion 611.

Referring to FIGS. 3 and 4, the reinforcing frame 640 may include a first frame 641 and a second frame 642. The first frame 641 may be formed in a cylindrical shape and arranged to surround the bearing seat 611 inside the cover body 610. The second frame 642 may be formed by being bent perpendicularly to the first frame 641. For example, the first frame 641 of the second frame 642 may extend in the radial direction from the lower end of the first frame 641 and may be formed in a flange shape to enhance the coupling between the cover body 610 and the reinforcing frame 640, (641).

The reinforcing frame 640 may be integrally formed by injecting an insert into the cover body 610.

As described above, the bus bar assembly, the motor, and the vehicle including the same according to a preferred embodiment of the present invention have been described in detail with reference to the accompanying drawings.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . 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: Housing
200:
300: Rotor
400: shaft
500: Bearings
600: bearing assembly

Claims (9)

A cover body including a bearing seat;
A terminal coupled to the cover body to include a connection end projecting outwardly of the cover body;
A flange portion extending from the cover body and including fastening means;
And a reinforcing frame contained within the cover body to surround the bearing seating. The method according to claim 1,
Wherein the flange portion includes a first frame disposed along the periphery of the bearing seat portion and a second frame bent in the first frame. 3. The method of claim 2,
Wherein the first frame is formed in a cylindrical shape such that a bearing seat is located on the inside thereof, and the second frame is formed in a flange shape extending in the radial direction of the first frame. The method of claim 3,
Wherein the cover body includes a stator seat portion recessed along the periphery of the bearing seat portion. housing;
A stator coupled to the housing and wound with a coil;
A rotor disposed inside the stator;
A shaft coupled to the rotor;
A bearing rotatably supporting the shaft;
A cover body including a bearing seat on which the bearing is seated, a terminal protruding from the cover body and coupled to the cover body so as to include a connection end connected to the coil, And a reinforcing frame enclosed within the cover body and surrounding the bearing seat,
/ RTI > 6. The method of claim 5,
Wherein the flange portion includes a first frame disposed along a periphery of the bearing seat portion, and a second frame bent in the first frame. The method according to claim 6,
Wherein the first frame is formed in a cylindrical shape such that a bearing seat is located on the inner side thereof, and the second frame is formed in a flange shape extending in the radial direction of the first frame. 8. The method of claim 7,
Wherein the cover body is recessed along the periphery of the bearing seating portion, and includes a stator seating portion on which the stator is seated. A rotor coupled to the housing; a stator wound around the stator; a rotor disposed inside the stator; a shaft coupled to the rotor; a bearing rotatably supporting the shaft; and a bearing seating portion on which the bearing is seated. A cover body including a cover body, a terminal coupled to the cover body so as to include a connection end protruding outside the cover body and connected to the coil, and fastening means extended from the cover body to engage with the housing A bus bar assembly including a flange portion and a reinforcing frame contained within the cover body and surrounding the bearing seating portion.

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