CN215300360U - Square motor rear end cap - Google Patents

Abstract

The utility model discloses a square motor rear end cover, which comprises an end cover body, wherein the end cover body is a cover body structure with a square section; the middle part of the end cover body is provided with a central hole for the motor rotor to pass through, and the front side of the end cover body and the periphery of the central hole are provided with a ventilation area; the four corners of the end cover body are respectively subjected to corner cutting treatment, a cutting surface with the middle part sunken towards the center of the end cover body is formed, and one end, far away from the front surface of the end cover body, on the cutting surface extends towards the radial direction of the cutting surface to form an installation part for installing a pull rod; the end cover body is of the square cover body structure, so that the occupied space is small, and the appearance is compact and attractive; a ventilation area is arranged on the front surface of the end cover body, so that the heat dissipation performance of the end cover body is improved; four corners of the end cover body are respectively subjected to corner cutting treatment, and a cutting surface with the middle part sunken towards the center of the end cover body is formed, so that the mechanical strength of the end cover body is improved, and the mechanical strength is high.

Description

Square motor rear end cap

Technical Field

The utility model relates to a motor manufacturing technology field, concretely relates to square motor rear end cap.

Background

The motor can produce a large amount of heat in the operation process, so the shell end cover of the motor is required to have quite high heat dissipation capacity, and the end cover with poor heat dissipation can overheat and damage the motor. Then, in order to increase the heat dissipation, the area of the heat dissipation holes on the end cover needs to be increased, which in turn leads to the reduction of the mechanical strength of the end cover, thereby reducing the transmission torque of the end cover.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a square motor rear end cap that mechanical strength is high, heat dispersion is good.

The utility model adopts the technical proposal that:

the square motor rear end cover comprises an end cover body, wherein the end cover body is of a cover body structure with a square section; the middle part of the end cover body is provided with a central hole for the motor rotor to pass through, and the front side of the end cover body and the periphery of the central hole are provided with a ventilation area; four angles of the end cover body are respectively subjected to corner cutting treatment, a cutting surface with the middle part sunken towards the center of the end cover body is formed, one end, far away from the front surface of the end cover body, of the cutting surface extends towards the radial direction of the end cover body, and an installation part for installing a pull rod is formed.

Further, the ventilation area comprises a first ventilation area and a second ventilation area, the first ventilation area is located on the periphery of the central hole, the first ventilation area is an annular area, and the second ventilation area is located on the periphery of the first ventilation area and four corners of the corresponding end cover body.

Furthermore, be equipped with many first ribs along first ventilation zone circumference interval, the fretwork part between two adjacent first ribs is first ventilation hole.

Further, the middle part of each first rib is bent towards the same side.

Further, the lateral dimension of the outer side of the first rib is smaller than the lateral dimension of the inner side of the first rib.

Furthermore, second ribs are arranged on the second ventilation area and corresponding to four corners of the end cover body respectively, one end of each second rib is connected with the edge of the end cover body corresponding to the middle of the corresponding cutting surface, and the other end of each second rib is connected with the outer wall of the corresponding first ventilation area and points to the center of the end cover body.

Furthermore, the second ventilation area is provided with third ribs corresponding to four sides of the end cover body, one end of each third rib is connected with the center of the edge of the end cover body, and the other end of each third rib is connected with the outer wall of the first ventilation area and points to the center of the end cover body.

Further, the hollow-out part between two adjacent second ribs and the hollow-out part between the adjacent third ribs is a second vent hole.

Further, a third ventilation hole is formed in the side face of the end cover body.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a rear end cover of a square motor according to an embodiment of the present disclosure;

fig. 2 is a schematic side structure view of a rear end cover of a square motor according to an embodiment of the present application.

The end cover comprises an end cover body 1, a center hole 2, a first ventilation area 3, a first rib 31, a first ventilation hole 32, an installation part 4, a cutting surface 5, a second ventilation area 6, a second rib 61, a third rib 62, a second ventilation hole 63 and a third ventilation area 7.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 to 2, the rear end cover of the square motor comprises an end cover body 1, wherein the end cover body 1 is of a cover body structure with a square section; the middle part of the end cover body 1 is provided with a central hole 2 for a motor rotor to pass through, and the front side of the end cover body 1 and the periphery of the central hole 2 are provided with a ventilation area; four angles of the end cover body 1 are respectively subjected to corner cutting treatment, a cutting surface 5 with the middle part sunken towards the center of the end cover body 1 is formed, one end, far away from the front surface of the end cover body 1, on the cutting surface 5 extends towards the radial direction of the cutting surface, and an installation part 4 for installing a pull rod is formed.

According to the end cover, the end cover body 1 is of the square cover body structure, so that the occupied space is small, the appearance is compact and attractive, the consumption of raw materials is saved, and the manufacturing cost is reduced; a ventilation area is arranged on the front surface of the end cover body 1, so that the heat dissipation performance of the end cover body 1 is improved; the four corners of the end cover body 1 are respectively subjected to corner cutting treatment, and the cutting surfaces 5 with the middle part recessed towards the center of the end cover body 1 are formed, so that the end cover body 1 forms inwards-concave edges at the positions of the four corners, the edges formed by the end cover body 1 improve the mechanical strength of the end cover body 1 to a certain extent, and the mechanical strength is high.

The ventilation area comprises a first ventilation area 3 and a second ventilation area 6, the first ventilation area 3 is located on the periphery of the central hole 2, the first ventilation area 3 is an annular area, and the second ventilation area 6 is located on the periphery of the first ventilation area 3 and corresponds to four corners of the end cover body 1. Through setting up two ventilation zone, further improve the heat dispersion of end cover body 1.

A plurality of first ribs 31 are arranged at intervals along the circumferential direction of the first ventilation area 3, and a hollow part between every two adjacent first ribs 31 is a first ventilation hole 32. The middle portion of each first rib 31 is curved to the same side. The lateral dimension of the outer side of the first rib 31 is smaller than the lateral dimension of the inner side thereof. By arranging the first rib 31 and the first vent hole 32, the heat dissipation performance and the mechanical performance of the end cover are further improved.

In the present embodiment, 15 first ribs 31 are provided at intervals in the circumferential direction of the first ventilation section 3, and 15 first ventilation holes 32 are formed in the first ventilation section 3. The first ventilation area 3 corresponds to a position of the motor rotor and is used for radiating heat of the motor rotor.

And second ribs 61 are arranged on the second ventilation area 6 and corresponding to four corners of the end cover body 1 respectively, one end of each second rib 61 is connected with the edge of the end cover body 1 corresponding to the middle part of the cutting surface 5, and the other end of each second rib is connected with the outer wall of the first ventilation area 3 and points to the center of the end cover body 1. And third ribs 62 are respectively arranged on the second ventilation area 6 and corresponding to four sides of the end cover body 1, one end of each third rib 62 is connected with the center of the edge of the end cover body 1, and the other end of each third rib 62 is connected with the outer wall of the first ventilation area 3 and points to the center of the end cover body 1. The hollow part between two adjacent second ribs 61 and third ribs 62 is a second vent hole 63. Through setting up second rib 61 and third rib 62, further improve the mechanical strength of end cover, improve its transmission moment of torsion, second vent 63 sets up the position at corresponding stator for dispel the heat to the stator, heat dispersion is good.

And a third ventilation hole is formed in the side surface of the end cover body 1. Through set up the third ventilation hole in the side of end cover body 1, the side of rational utilization end cover body 1 can set up the shutter for the heat dissipation on this third ventilation hole, further improves its heat dispersion.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (9)

1. The square motor rear end cover comprises an end cover body and is characterized in that the end cover body is of a cover body structure with a square section; the middle part of the end cover body is provided with a central hole for the motor rotor to pass through, and the front side of the end cover body and the periphery of the central hole are provided with a ventilation area; four angles of the end cover body are respectively subjected to corner cutting treatment, a cutting surface with the middle part sunken towards the center of the end cover body is formed, one end, far away from the front surface of the end cover body, of the cutting surface extends towards the radial direction of the end cover body, and an installation part for installing a pull rod is formed.

2. The square motor rear end cap according to claim 1, wherein the ventilation areas include a first ventilation area located at an outer periphery of the center hole and an annular area, and a second ventilation area located at an outer periphery of the first ventilation area and corresponding to four corners of the end cap body.

3. The rear end cover of a square motor according to claim 2, wherein a plurality of first ribs are arranged at intervals along the circumferential direction of the first ventilation area, and the hollow part between every two adjacent first ribs is the first ventilation hole.

4. The rear end cap of a square motor according to claim 3, wherein the middle portion of each first rib is bent to the same side.

5. A square motor rear end cap according to claim 3, wherein the lateral dimension of the outside of the first rib is smaller than the lateral dimension of the inside thereof.

6. The rear end cover of a square motor according to claim 2, wherein second ribs are respectively provided on the second ventilation area and corresponding to four corners of the end cover body, one end of each second rib is connected to the edge of the end cover body corresponding to the middle of the cut-off surface, and the other end of each second rib is connected to the outer wall of the first ventilation area and points to the center of the end cover body.

7. The rear end cover of the square motor according to claim 6, wherein a third rib is respectively arranged on the second ventilation area and corresponding to four sides of the end cover body, one end of the third rib is connected with the center of the edge of the end cover body, and the other end of the third rib is connected with the outer wall of the first ventilation area and points to the center of the end cover body.

8. The square motor rear end cover according to claim 7, wherein the hollowed-out portion between two adjacent second ribs and the third rib is a second vent hole.

9. The rear end cover of a square motor according to claim 1, wherein a third ventilation hole is formed in a side surface of the end cover body.

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