CN212392739U - Low-noise motor rear end cover structure - Google Patents

Abstract

The utility model provides a low-noise motor rear end cover structure, wherein a corrugated surface (1) is arranged on the outer surface of an end cover (9), and the corrugated surface (1) bulges from the outer side of the end cover (9) to the middle part; the inner surface of the end cover (9) is provided with a plurality of radial ribs (2) which are arranged in a radial manner at equal intervals along the middle bearing chamber, and the radial ribs (2) are provided with a slope surface (3); a ring rib (5) is arranged between the outer edge of the inner surface of the end cover (9) and the central bearing chamber; a cantilever rib is arranged at the cantilever (10) of the end cover (9).

Description

Low-noise motor rear end cover structure

Technical Field

The utility model relates to a motor end cover technical field especially relates to a low noise motor rear end cap structure.

Background

With the application of two-in-one, three-in-one and higher integrated all-in-one structures, the motor end cover is not only used for supporting the rotor and connecting the suspension, but also used for supporting the controller and the half shaft, which can lead the force received by the rear end cover to be more complicated; meanwhile, the noise requirement of the system on the driving assembly is higher and higher, so that the low-noise design requirement on the rear end cover is higher and higher; at present structural design is mostly through increasing strengthening rib quantity and wall thickness noise reduction, however the structure of strengthening rib is comparatively simple, does not have corresponding specific design to local resonance, leads to the noise reduction effect not good, in addition, also can lead to deformation because of strong vibrations in the motor actual operation process, and present end cover structure can't play the effect that reduces the deformation volume.

Disclosure of Invention

In order to overcome the defects in the background art, the utility model provides a low-noise motor rear end cover structure, which reduces the amount of deformation while reducing the noise, can effectively improve the mode of an end cover, and effectively reduces the amplitude of the weak part of the end cover; the force transmitted by the controller and the half shaft can be effectively resisted, and the deformation is reduced.

In order to achieve the above object, the utility model provides a following technical scheme:

at least one embodiment of the present disclosure provides a low-noise motor rear end cover structure, including an end cover, an outer surface of the end cover being arched upward, a cross section of the outer surface of the end cover being a corrugated surface; the inner surface of the end cover is provided with a reinforcing rib, and a cantilever rib is arranged at the cantilever of the end cover.

For example, in the rear end cover structure of a low-noise motor provided in at least one embodiment of the present disclosure, the reinforcing ribs provided on the inner surface of the end cover are: the inner surface of the end cover is provided with a plurality of radial ribs which are arranged in a radial manner at equal intervals along the middle bearing chamber, and the radial ribs are provided with slopes; and a ring rib is arranged between the outer edge of the inner surface of the end cover and the central bearing chamber.

For example, in the low-noise motor rear end cover structure provided in at least one embodiment of the present disclosure, the slope of the radial rib is high near the bearing chamber, and is low near the outer edge of the end cover, and a boss is formed outside the bearing chamber.

For example, in the low noise motor rear end cap structure provided in at least one embodiment of the present disclosure, the annular rib is disposed on the inner surface of the end cap and near the outer edge 1/3 of the end cap.

For example, in the low noise motor rear end cap structure that at least one embodiment of this disclosure provided, the cantilever muscle includes first cantilever muscle, second cantilever muscle and third cantilever muscle, first cantilever muscle and second cantilever muscle set up the internal surface at the cantilever, and first cantilever muscle and second cantilever muscle are arranged and are latticed anyhow, the side at the cantilever is established to the third cantilever muscle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a low noise motor rear end cap structure reduces resonance through set up the ripple face of upwards arching at the end cover surface rather than traditional plane, sets up radial rib and ring rib that the axial muscle height is higher more at the end cover internal surface to and set up the cantilever muscle on the cantilever, come the targeted resonance that reduces, reduce the deformation volume simultaneously at the noise reduction, the utility model discloses can effectively improve the mode of end cover, effectively reduce the amplitude of end cover weak point; the force transmitted by the controller and the half shaft can be effectively resisted, and the deformation is reduced.

Drawings

FIG. 1 is a cross-sectional view of an end cap of the present invention;

FIG. 2 is a cross-sectional view of the end cap without the reinforcing ribs of the present invention;

fig. 3 is a schematic view of the inner surface structure of the end cap of the present invention;

fig. 4 is a schematic view of the overall structure of the end cap of the present invention.

In the figure: 1-corrugated surface, 2-radial rib, 3-sloping surface, 4-boss, 5-annular rib, 6-first cantilever rib, 7-second cantilever rib, 8-third cantilever rib, 9-end cover and 10-cantilever.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

A low noise motor rear cover structure according to at least one embodiment of the present disclosure will be described below with reference to the accompanying drawings.

At least one embodiment of the present disclosure provides a low-noise motor rear end cap structure, as shown in fig. 1-3, an outer surface of the end cap 9 is arched upward, a cross section of the outer surface of the end cap 9 is a corrugated surface 1, which overcomes the problem that the outer surface of the conventional end cap 9 adopts a planar design, as shown in fig. 1-2, an isolation space can be expanded by the end cap with the corrugated surface structure, thereby reducing resonance; the inner surface of the end cover 9 is provided with a plurality of radial ribs 2 which are arranged in a radial manner at equal intervals along the middle bearing chamber, and the radial ribs 2 are provided with a slope surface 3; a ring rib 5 is arranged between the outer edge of the inner surface of the end cover 9 and the central bearing chamber; cantilever ribs are arranged at the cantilever 10 of the end cover 9.

For example, in the low-noise motor rear end cover structure provided in at least one embodiment of the present disclosure, as shown in fig. 2 to 3, the slope 3 of the radial rib 2 is high near the bearing chamber, low near the outer edge of the end cover 9, and forms a boss 4 outside the bearing chamber; the bearing room position is crooked place the biggest under the normal condition, the utility model discloses a setting has domatic radiation muscle 2, and more toward the bearing room direction to the muscle higher more to restrain and warp.

For example, in the low-noise motor rear end cover structure provided in at least one embodiment of the present disclosure, as shown in fig. 2, the ring rib 5 is disposed on the inner surface of the end cover 9 and near the outer edge 1/3 of the end cover 9; as an integrated design, the modal matrix of the end caps moves outward in center, and thus the ring rib 5 moves outward accordingly.

For example, in the low-noise motor rear end cover structure provided in at least one embodiment of the present disclosure, the cantilever ribs include a first cantilever rib 6, a second cantilever rib 7, and a third cantilever rib 8, the first cantilever rib 6 and the second cantilever rib 7 are disposed on an inner surface of the cantilever 10, the first cantilever rib 6 and the second cantilever rib 7 are arranged in a grid shape in a horizontal and vertical manner, and the third cantilever rib 8 is disposed on a side surface of the cantilever 10; the reduction of torsion and swing at the cantilever is effectively suppressed by the first cantilever rib 6, the second cantilever rib 7, and the third cantilever rib 8.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the invention are intended only as illustrative examples of the invention and no limitation of the invention is intended whatsoever to be construed by the embodiments of the invention.

Claims (5)

1. The utility model provides a low noise motor rear end cap structure, includes end cover (9), characterized by: the outer surface of the end cover (9) is arched upwards, and the section of the outer surface of the end cover (9) is a corrugated surface (1); the inner surface of the end cover (9) is provided with a reinforcing rib, and a cantilever rib is arranged at a cantilever (10) of the end cover (9).

2. The low noise motor rear end cap structure of claim 1, wherein: the inner surface of the end cover (9) is provided with the following reinforcing ribs: the inner surface of the end cover (9) is provided with a plurality of radial ribs (2) which are arranged in a radial manner at equal intervals along the middle bearing chamber, and the radial ribs (2) are provided with a slope surface (3); and a ring rib (5) is arranged between the outer edge of the inner surface of the end cover (9) and the central bearing chamber.

3. The low noise motor rear end cap structure of claim 2, wherein: the slope surface (3) of the radiation rib (2) is high close to the bearing chamber, low close to the outer edge of the end cover (9), and a boss (4) is formed outside the bearing chamber.

4. The low noise motor rear end cap structure of claim 2, wherein: the annular rib (5) is arranged on the inner surface of the end cover (9) and close to the outer edge 1/3 of the end cover (9).

5. The low noise motor rear end cap structure of claim 1, wherein: the cantilever muscle includes first cantilever muscle (6), second cantilever muscle (7) and third cantilever muscle (8), first cantilever muscle (6) and second cantilever muscle (7) set up the internal surface at cantilever (10), and first cantilever muscle (6) and second cantilever muscle (7) are arranged anyhow and are latticed, the side at cantilever (10) is established in third cantilever muscle (8).

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