CN212162984U

CN212162984U - Outer rotor motor end cover casing assembly and outer rotor motor

Info

Publication number: CN212162984U
Application number: CN202020885441.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Topband Co Ltd
Current assignee: Shenzhen Topband Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-15
Anticipated expiration: 2030-05-21

Abstract

The utility model provides an external rotor electric machine end cover casing subassembly, including the end cover and with the casing that the end cover is connected, the side of end cover is equipped with the bellying, the front portion of casing surrounds the rear portion of end cover, the front portion of casing be equipped with forward open with the screens that the bellying matches, for the supply the end cover with when the casing is connected, the bellying with the unsmooth cooperation of screens. The outer rotor motor comprises the outer rotor motor end cover shell assembly. In the outer rotor motor end cover casing assembly, the end cover and the casing are connected through the convex parts and the clamping positions, when the motor operates, the relative rotation between the front end cover and the casing can be effectively avoided, and the reliability is very high.

Description

Outer rotor motor end cover casing assembly and outer rotor motor

Technical Field

The utility model belongs to the technical field of the motor and specifically relates to an external rotor electric machine end cover casing subassembly and external rotor electric machine are related to.

Background

The connection mode of the end cover and the shell of the existing outer rotor motor is simple, the end cover and the shell are easy to separate when the motor runs, the reliability is low, and particularly, when the motor is impacted, for example, under the mechanical braking condition of the motor and under the extreme condition of sudden stop caused by external interference, the connection position of the end cover and the shell of the motor is under the action of great impact force.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect in the correlation technique, provide an external rotor electric machine end cover casing subassembly and external rotor electric machine.

The utility model provides a technical scheme that its technical problem adopted includes: the outer rotor motor end cover and shell assembly comprises an end cover and a shell connected with the end cover, wherein a protruding portion is arranged on the side face of the end cover, the front portion of the shell surrounds the rear portion of the end cover, a clamping portion which is opened forwards and matched with the protruding portion is arranged on the front portion of the shell, and when the end cover is connected with the shell, the protruding portion is in concave-convex fit with the clamping portion.

Preferably, the protruding portion includes at least two that distribute along circumference interval the protruding portion, the screens include with at least two the protruding portion one-to-one matches at least two the screens.

Preferably, each of the protrusions comprises first and second opposing planar surfaces that stand on the sides of the end cap, the first planar surface being parallel to the axis of rotation of the end cap.

Preferably, each of the clips includes a fourth plane and a fifth plane which are opposite to each other, the fourth plane corresponds to the first plane, the fifth plane corresponds to the second plane, so that when the end cover is connected to the housing, the fourth plane contacts the first plane, and the fifth plane contacts the second plane.

Preferably, each of the bosses includes a third rearwardly facing plane that is perpendicular to the axis of rotation of the end cap.

Preferably, each of the protrusions includes a sixth plane facing forward, and the sixth plane corresponds to the third plane, so that when the end cover is connected to the chassis, the sixth plane is in contact with the third plane.

Preferably, each said projection includes a forwardly facing ramp.

Preferably, each of the blocking parts is in a notch shape.

Preferably, each said detent is square.

The utility model provides a technical scheme that its technical problem adopted includes: the outer rotor motor comprises the outer rotor motor end cover shell assembly.

Implement the technical scheme of the utility model, following beneficial effect has at least: in the outer rotor motor end cover casing assembly, the end cover and the casing are connected through the convex parts and the clamping positions, when the motor operates, the relative rotation between the front end cover and the casing can be effectively avoided, and the reliability is very high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of an outer rotor motor end cover housing assembly according to an embodiment of the present invention.

Fig. 2 is a front view of the outer rotor motor end cap housing assembly of fig. 1.

Fig. 3 is a sectional view taken at a position a-a in fig. 2.

Fig. 4 is a partially enlarged view of a portion B in fig. 3.

Fig. 5-6 are perspective views of end caps of the outer rotor motor end cap housing assembly of fig. 1.

Fig. 7 is a perspective view of a housing of the outer rotor motor end cap housing assembly of fig. 1.

The reference numerals in the figures denote: the end cover comprises an end cover 1, a convex part 11, a first plane 11a, a second plane 11b, a third plane 11c, a slope 11d, a connecting hole 12, a machine shell 2, a clamping position 21, a fourth plane 21a, a fifth plane 21b, a sixth plane 21c, a rotating shaft 3, a convex step position 4a and a concave step position 4 b.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1-7, the utility model discloses an external rotor electric machine end cover casing subassembly in embodiment, including end cover 1 and the casing 2 of being connected with end cover 1, end cover 1's lateral surface is equipped with outside convex bellying 11, and casing 2 is the annular, and the front portion of casing 2 surrounds end cover 1's rear portion, and casing 2's front portion is equipped with the screens 21 that open forward and bellying 11 match to when supplying end cover 1 to be connected with casing 2, bellying 11 and screens 21 unsmooth cooperation.

In the outer rotor motor end cover casing assembly, the end cover 1 and the casing 2 are connected with the clamping position 21 through the convex part 11, the relative position between the end cover 1 and the casing 2 is limited, the connection strength between the end cover 1 and the casing 2 can be effectively enhanced, when the motor operates, the relative rotation between the front end cover 1 and the casing 2 can be effectively avoided, and the reliability is very high.

The protruding portion 11 includes at least two protruding portions 11 along circumference interval evenly distributed, and screens 21 includes at least two screens 21 that match with at least two protruding portions 11 one-to-one. Preferably, the protrusions 11 are distributed symmetrically around the centre of the axis of rotation of the end cap 1. In the embodiment of fig. 1-7, the number of the protrusions 11 and the detents 21 is 4, but is not limited to 4, and may be 1, 2, 3, 5, 6 or more.

Each boss 11 includes first and second opposite and

parallel planes

11a and 11b standing vertically on the side of the end cap 1, the first plane 11a being parallel to the rotational axis of the end cap 1 and being arranged in the longitudinal direction. Each stopper 21 includes a fourth plane 21a and a fifth plane 21b facing and parallel to each other, the fourth plane 21a corresponds to and is parallel to the first plane 11a, the fifth plane 21b corresponds to and is parallel to the second plane 11b, so that when the end cap 1 is connected to the housing 2, the fourth plane 21a contacts the first plane 11a, the fifth plane 21b contacts the second plane 11b, and the fourth plane 21a and the fifth plane 21b are parallel to the rotation axis of the housing 2.

Each boss 11 includes a third, rearwardly facing plane 11c, the third plane 11c being perpendicular to the axis of rotation of the end cap 1, the third plane 11c being perpendicular to the first and

second planes

11a, 11 b. Each of the protruding portions 11 includes a sixth plane 21c facing forward, and the sixth plane 21c corresponds to and is parallel to the third plane 11c, so that when the end cover 1 is connected to the housing 2, the sixth plane 21c contacts the third plane 11 c.

Each boss 11 includes a forward inclined surface 11d, the inclined surface 11d is inclined to a side surface of the end cap 1, and the inclined surface 11d is opposite to the third plane 11 c.

Each stopper 21 is formed in a notch shape opened forward. Preferably, each detent 21 is square.

The outer rotor motor end cover machine shell assembly comprises a convex step position 4a and a concave step position 4b matched with the convex step position 4a in a concave-convex mode, one of the convex step position 4a and the concave step position 4b is arranged on the outer side face of the end cover 1, the other one of the convex step position 4a and the concave step position 4b is arranged on the inner wall of the machine shell 2, and therefore when the end cover 1 is connected with the machine shell 2, the convex step position 4a and the concave step position 4b are mutually clamped. In the embodiment of fig. 1-7, the raised step 4a is provided on the outer side of the end cap 1 and the recessed step 4b is provided on the inner wall of the housing 2. Preferably, the raised step 4a extends in the circumferential direction; the recessed step 4b extends in the circumferential direction. The number of the convex step 4a and the concave step 4b is at least one, and the number is not limited, and may be 1, 2, 3, 4 or more. The connection strength between the end cover 1 and the casing 2 can be enhanced through the convex step 4a and the concave step 4b, and the risk of separation of the end cover 1 and the casing 2 is reduced.

The utility model discloses an embodiment's external rotor electric machine, including foretell external rotor electric machine end cover casing subassembly, still include the pivot, be equipped with the connecting hole 12 that is used for being connected with the pivot on the end cover 1, the pivot is connected with end cover 1 to drive end cover 1 and casing 2 and rotate.

In the outer rotor motor, the end cover 1 is connected with the casing 2 through the convex part 11 and the clamping part 21, and the convex step 4a is matched with the concave step 4b to limit the relative position between the end cover 1 and the casing 2, so that the connection strength between the end cover 1 and the casing 2 can be effectively enhanced, when the motor operates, the relative rotation between the front end cover 1 and the casing 2 can be effectively avoided, and the reliability is very high.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The outer rotor motor end cover and shell assembly comprises an end cover (1) and a shell (2) connected with the end cover (1), and is characterized in that a protruding portion (11) is arranged on the side face of the end cover (1), the front portion of the shell (2) surrounds the rear portion of the end cover (1), and a clamping portion (21) which is opened forwards and matched with the protruding portion (11) is arranged on the front portion of the shell (2) so that when the end cover (1) is connected with the shell (2), the protruding portion (11) and the clamping portion (21) are in concave-convex fit.

2. The outer rotor motor end cover casing assembly according to claim 1, wherein the protruding portion (11) comprises at least two protruding portions (11) distributed at intervals along the circumferential direction, and the detent (21) comprises at least two detents (21) matched with the at least two protruding portions (11) in a one-to-one correspondence manner.

3. The outer rotor motor end cover housing assembly according to claim 1, wherein each of the protrusions (11) comprises a first plane (11a) and a second plane (11b) which stand on the side of the end cover (1) and are opposite to each other, and the first plane (11a) is parallel to the rotation axis of the end cover (1).

4. The outer rotor motor end cover housing assembly according to claim 3, wherein each of the locking portions (21) comprises a fourth plane (21a) and a fifth plane (21b) facing each other, the fourth plane (21a) corresponds to the first plane (11a), the fifth plane (21b) corresponds to the second plane (11b), so that when the end cover (1) is connected to the housing (2), the fourth plane (21a) contacts the first plane (11a), and the fifth plane (21b) contacts the second plane (11 b).

5. The outer rotor motor end cover housing assembly according to claim 1, wherein each of the bosses (11) comprises a third, rearward facing plane (11c), the third plane (11c) being perpendicular to the axis of rotation of the end cover (1).

6. The outer rotor motor end cover housing assembly according to claim 5, wherein each boss (11) comprises a sixth plane (21c) facing forward, the sixth plane (21c) corresponds to the third plane (11c), so that when the end cover (1) is connected with the housing (2), the sixth plane (21c) is in contact with the third plane (11 c).

7. The outer rotor motor end cover housing assembly according to claim 1, wherein each of the bosses (11) includes a forward slope (11 d).

8. The outer rotor motor end cover housing assembly according to claim 1, wherein each detent (21) is notched.

9. The outer rotor motor end cover housing assembly according to claim 8, wherein each detent (21) is square.

10. The external rotor motor end cover housing assembly according to claim 1, wherein the external rotor motor end cover housing assembly comprises a raised step (4a) and a recessed step (4b) which is concave-convex matched with the raised step (4a), one of the raised step (4a) and the recessed step (4b) is arranged on the end cover (1), and the other is arranged on the housing (2), so that the raised step (4a) and the recessed step (4b) are mutually clamped when the end cover (1) is connected with the housing (2).

11. The outer rotor motor end cover housing assembly according to claim 10, wherein the raised step (4a) extends in a circumferential direction.

12. The outer rotor motor end cover housing assembly according to claim 10, wherein the recessed step (4b) extends in a circumferential direction.

13. An external rotor motor, comprising an end cover housing assembly of the external rotor motor according to any one of claims 1 to 12.