阅读说明：本技术 旋转电机 (Rotating electrical machine ) 是由 乔纳森·阿迪尔森·帕西格 帕特里克·拉芬 亚历山大·施密特·费雷拉 于 2019-07-08 设计创作，主要内容包括：本发明涉及一种旋转电机,该旋转电机包括壳体,壳体包围具有转子和定子的有源芯,该转子安装在轴上,其中壳体(1)包括成形为可互换法兰容纳界面(1c)的端部,可互换法兰容纳界面(1c)构造成容纳可互换法兰(5)；并且其中可互换法兰容纳界面(1c)包括至少一个接合部分(7),该接合部分(7)与可互换法兰(5)的相应接合部分(8)配合。(The invention relates to a rotating electrical machine comprising a housing enclosing an active core with a rotor and a stator, the rotor being mounted on a shaft, wherein the housing (1) comprises an end portion shaped as an interchangeable flange receiving interface (1c), the interchangeable flange receiving interface (1c) being configured to receive an interchangeable flange (5); and wherein the interchangeable flange receiving interface (1c) comprises at least one engagement portion (7), the engagement portion (7) cooperating with a corresponding engagement portion (8) of the interchangeable flange (5).)

1. A rotating electrical machine comprising:

a housing enclosing an active core having a rotor and a stator, the rotor mounted on a shaft, the rotating electrical machine characterized by:

the housing (1) comprises an end portion shaped as an interchangeable flange receiving interface (1c), the interchangeable flange receiving interface (1c) being configured to receive an interchangeable flange (5);

wherein the interchangeable flange receiving interface (1c) comprises at least one engagement portion (7) cooperating with a corresponding engagement portion (8) of the interchangeable flange (5).

2. A rotating electric machine according to claim 1, wherein the interchangeable flange receiving interface (1c) comprises three engagement portions (7), the three engagement portions (7) cooperating with three corresponding engagement portions (8) of the interchangeable flange (5).

3. A rotating electric machine according to claim 2, wherein the interchangeable flange receiving interface (1c) and the engaging portions (7, 8) of the interchangeable flange (5) have a dovetail configuration, wherein the engaging portions (7) of the interchangeable flange receiving portion (1c) are convex and the corresponding engaging portions (8) of the interchangeable flange (5) are concave.

4. A rotating electric machine according to claim 3, wherein the engagement portions (7) of the interchangeable flange receiving interface (1c) are formed in a circular shoulder (6) of the interchangeable flange receiving interface (1c) and the corresponding engagement portions (8) of the interchangeable flange (5) are formed in a protrusion (8a) having a curved outer contour.

5. The rotating machine according to any one of claims 1 to 4, wherein the interchangeable flange receiving interface (1c) of the housing further comprises at least one guiding recess (9), the guiding recess (9) being configured to receive at least one guiding protrusion (10) provided on the interchangeable flange (5).

6. A rotating electric machine according to claim 5, wherein the interchangeable flange receiving interface (1c) comprises three guiding recesses (9) and the interchangeable flange (5) comprises three corresponding guiding protrusions (10).

7. The rotating electric machine according to any one of claims 1 to 6, characterized in that:

said interchangeable flange receiving interface (1c) comprises at least one drilling (11) for the passage of an axial fastening screw of said interchangeable flange; and

the interchangeable flange (5) comprises respective through holes (12) to allow the passage of the axial fastening screws of the interchangeable flange.

8. An electric rotating machine according to any of claims 4 to 7, wherein the interchangeable flange receiving interface (1c) further comprises two discharge cavities (13) extending radially between the circular shoulder (6) and the peripheral edge of the interchangeable flange receiving interface (1 c).

9. Rotating machine according to any of claims 1-8, wherein the interchangeable flange (5) is a polymer flange.

10. The rotating electrical machine according to any of claims 1-8, wherein the interchangeable flange receiving interface (1c) further comprises a hexagonal hole (14), the hexagonal hole (14) being configured to secure an aluminum flange.

Technical Field

The present invention relates to a rotary electric machine, and more particularly, to a flange fastening system for a rotary electric machine.

Background

Several different types of motor housings are known in the art, the motor housings mainly comprising a housing in which parts and components of the machine are enclosed.

As known to those skilled in the art, the housing is adapted to enclose a plurality of internal components and is also adapted to house a series of external fittings and components which are secured to the housing by different fastening systems.

For example, the housing typically also includes a flange that facilitates coupling of the rotary electric machine to other machines or devices. Generally, the flange is adapted to the type of coupling desired, and the flange type is generally associated with the structural form of the machine.

To ensure a correct and faultless coupling, the flanges are typically subjected to a machining process to avoid gaps and coupling faults. This process eventually becomes laborious and expensive.

Disclosure of Invention

It is an object of the present invention to provide a rotating electric machine with an improved flange fastening system which does not require machining of the flange.

It is another object of the present invention to provide a rotating electric machine having an improved flange structure.

It is another object of the present invention to provide a rotating electrical machine wherein the end of the housing is formed with an interface that receives an interchangeable flange.

It is another object of the present invention to provide a rotary electric machine with a housing that includes a receiving interchangeable flange interface formed in the housing that can overlap different flange coupling sizes.

The present invention relates to a rotary electric machine having a housing including a flange attachment system, wherein the housing includes a flange portion contained in a front portion of the housing, the flange portion configured to receive an interchangeable flange.

The receiving flange interface is capable of receiving interchangeable flanges having different coupling dimensions.

The receiving interchangeable flange interface includes at least one engagement portion that mates with a corresponding engagement portion of the interchangeable flange.

In one embodiment of the invention, the receiving interchangeable flange interface includes three recesses that mate with three corresponding engagement portions of the interchangeable flange. The interchangeable flange receiving interface and the engaging portion of the interchangeable flange are dovetail shaped wherein the engaging portion of the flange receiving portion is male and the corresponding engaging portion of the interchangeable flange is female.

In an embodiment of the invention, the engagement portion of the interchangeable flange receiving interface is formed in a substantially circular recess of the interchangeable flange receiving interface and the corresponding engagement portion of the interchangeable flange portion is formed on a protrusion having a curved outer profile.

The interchangeable flange-receiving interface may further include at least one recess configured to receive at least one guide projection provided on the interchangeable flange.

In one embodiment of the invention, the interchangeable flange receiving interface includes three recessed guides and the interchangeable flange includes three corresponding guide projections.

The interchangeable flange-receiving interface may further comprise at least one bore for the passage of an axial fastening screw of the flange; and the interchangeable flange may comprise corresponding through holes to allow the passage of axial fastening screws of the flange.

The interchangeable flange-receiving interface may further include a drain cavity extending radially between the circular recess and the peripheral edge of the interchangeable flange-receiving interface.

In addition, the interchangeable flange-receiving interface may further include a hexagonal aperture configured to secure the coupler.

Drawings

The invention will be described in more detail below with reference to the accompanying drawings, in which:

fig. 1 is a side view of an electric machine according to the invention;

FIG. 2 is a perspective view of a motor according to the present invention with the housing shown without the interchangeable flange;

FIG. 3 is a front view of a housing of an electric machine according to the present invention;

FIG. 4 is a front perspective view of an interchangeable flange according to the present invention; and

fig. 5 is a rear perspective view of an interchangeable flange according to the present invention.

Detailed Description

Fig. 1 shows an electrical machine comprising the interchangeable flange solution of the invention.

Although the invention is described as being incorporated in an electric motor, it should be understood that the solution of the invention can also be applied to other electric machines comprising a housing, for example any rotating electric machine having such characteristics.

As can be seen from fig. 1, the electric motor comprises a housing divided in the axial direction 1, which is formed by a first housing part 1a and a second housing part 1 b.

It should be noted, however, that the present invention may be embodied in motors having housings of different structural characteristics, for example, of the type including a one-piece main housing with end caps.

As known to those skilled in the art, the housing of the electric motor encloses a series of internal components and houses a series of external fittings and components which are fixed to the housing by different fastening systems. Thus, as external components, the motor of fig. 1 has a terminal box 2, legs 3 and a deflector cover 4.

The present invention comprises a flange fastening system wherein the end of the housing is shaped/formed as a flange portion 1c of a common construction, said flange portion being configured to receive an interchangeable flange 5.

As used herein, a "universal" structure is understood to be a structure capable of accommodating flanges having different coupling systems.

As better shown in fig. 2 and 3, the flange portion 1c includes a configuration ready for over-installation, and the flange portion 1c is shaped with an interchangeable flange receiving interface 1 c.

The shaping is performed during the forming of the housing, for example during casting, moulding or injection into the housing.

In an embodiment of the present invention, the interchangeable flange is an interchangeable polymer flange that can be mounted on the interchangeable flange receiving interface 1 c. However, it should be noted that the flange may be made of other materials.

Of course, a plurality of different interchangeable flanges 9 may be configured for mounting to the portion 1c, so that such flanges may satisfy different sizes of coupling. In this way, the assembly process is simplified, and assembly time and operation are reduced.

The interchangeable flange receiving interface 1c of the housing comprises a substantially circular shoulder 6, wherein at least one engagement portion 7 cooperates with a corresponding engagement portion 8 of the interchangeable flange 5. In the embodiment shown in the figures, the substantially circular shoulder defines a central circular cavity having a hole in the center for passage of the machine shaft. According to this embodiment, the engagement portion 7 extends axially in the edge wall of the inner circular cavity.

The substantially circular shoulder 6 is preferably concentric with the through hole of the motor shaft.

In the embodiment of the invention shown in the figures, the substantially circular shoulder 6 comprises three engagement portions 7, the three engagement portions 7 cooperating with three corresponding engagement portions 8 of the interchangeable flange 5.

In the embodiment of the invention shown in the figures, the engagement portions 7, 8 have a dovetail configuration and the engagement portion 7 of the interchangeable flange receiving interface 1c has a male profile, while the corresponding engagement portion of the interchangeable flange 5 has a female profile formed on the projection 8a (with a curved outer profile).

The curved outer contour of the protrusion 8a corresponds to the circular contour of the edge wall of the cavity of the circular shoulder 6 in order to provide an easier and safer engagement between the parts. Furthermore, the interaction between the edge wall of the cavity of the circular shoulder 6 and the curved profile of the protrusion 8a helps to guide the assembly into engagement between the parts.

In the embodiment shown in the figures, the respective flange engagement portion 8 is formed near the central hole of the flange.

The interchangeable flange receiving interface 1c further comprises at least one guiding recess 9, the guiding recess 9 being located near the peripheral edge of the interface and being configured to receive at least one corresponding guiding protrusion 10 provided near the peripheral edge of the interchangeable flange 5.

In the embodiment shown in the figures, the interchangeable flange receiving interface 1c comprises three guiding recesses 9 and the interchangeable flange 5 comprises three corresponding guiding protrusions 10.

The interchangeable flange receiving interface 1c may include at least one bore 11 for axially securing a screw of the flange. In this embodiment, the interchangeable flange 5 comprises respective through holes 12 to allow the passage of fastening screws.

In the embodiment shown in the figures, the interchangeable flange receiving interface 1c has six bores 11 and the interchangeable flange 5 has six corresponding through holes 12.

The interchangeable flange receiving interface 1c may further include a vent cavity 13, the vent cavity 13 extending radially between the circular shoulder 6 and the peripheral edge of the interchangeable flange receiving interface 1 c. The discharge chamber 13 is particularly suitable for vertical housing applications.

In the embodiment of the figures, the interchangeable flange receiving interface 1c has two cavities 13, the cavities 13 being usable in different positions of the assembly of the rotating electrical machine.

The interchangeable flange-receiving interface 1c may also include a hexagonal aperture 14. The hexagonal hole may be used to secure an aluminum flange or flange of other suitable material compatible with the interchangeable flange receiving interface 1 c.

Having described examples of embodiments of the invention, it is to be understood that the scope of the invention includes other possible variations of the inventive concepts described, limited only by the language of the appended claims, including the possible equivalents.