CN108631484B

CN108631484B - Reluctance motor end cover and reluctance motor

Info

Publication number: CN108631484B
Application number: CN201810776376.XA
Authority: CN
Inventors: 倪祖根
Original assignee: Kingclean Electric Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2023-06-23
Anticipated expiration: 2038-07-16
Also published as: CN108631484A

Abstract

The invention discloses a reluctance motor end cover and a reluctance motor, belongs to the technical field of motors, and is designed for solving the problem that the root of the existing plug connector is easy to bend, set and break. The end cover of the reluctance motor comprises an end cover body, wherein a protection corner for supporting on a plug connector of the reluctance motor is arranged on the end cover body, and the protection corner at least comprises two planes forming a set included angle. The reluctance motor comprises a stator core, wherein an inserting piece is arranged on the stator core, the reluctance motor end cover is further arranged, and a protection corner is supported on the inserting piece after the reluctance motor end cover is arranged. The end cover of the reluctance motor and the reluctance motor provided by the invention have the advantages that the protection corner provides supporting force for the plug connector when the terminal is plugged or the plug connector is collided, the root of the plug connector is prevented from bending or breaking, and the end cover is especially suitable for motors with more crowded inner space and easy collision in the installation and use processes.

Description

Reluctance motor end cover and reluctance motor

Technical Field

The invention relates to the technical field of motors, in particular to a reluctance motor end cover and a reluctance motor comprising the end cover.

Background

The reluctance motor comprises a stator, a rotor sleeved in the stator and an end cover buckled at the end head of the stator. The stator is provided with a plug connector for signal input and output.

The existing plug connector is connected to the stator and protrudes out of the outer wall of the motor, the protruding and suspended structure of the plug connector leads to poor structural strength, and the root of the plug connector is easy to bend or even break when the terminal is plugged or collided, so that the normal use of the motor is affected.

Disclosure of Invention

An object of the present invention is to provide a reluctance motor end cap in which a plug is not easily bent or broken.

Another object of the invention is to propose a reluctance motor with a longer service life.

In order to achieve the purpose, on one hand, the invention adopts the following technical scheme:

a reluctance motor end cover comprises an end cover body, wherein a protection corner used for being supported on a plug connector of a reluctance motor is arranged on the end cover body, and the protection corner at least comprises two planes forming a set included angle.

The first protection surface, the second protection surface and the third protection surface of the protection corner are sequentially connected to form a concave structure.

Further, a reinforcing surface is formed between the protective corner and the end cap body.

The reluctance motor end cover comprises a front end cover and a rear end cover, and auxiliary supporting pieces for supporting the reluctance motor plug connector are respectively arranged on the front end cover and the rear end cover.

On the other hand, the invention adopts the following technical scheme:

the reluctance motor comprises a stator core, wherein a plug connector is arranged on the stator core, the reluctance motor end cover is further arranged, and after the reluctance motor end cover is arranged, the protection corner is supported on the plug connector.

Wherein, be provided with the strengthening rib on the plug connector, the strengthening rib is located the back of terminal place plane.

The connector is provided with a longitudinal rotating shaft, and the connector can rotate around the longitudinal rotating shaft.

The connector is provided with a transverse rotating shaft, and the connector can rotate around the transverse rotating shaft.

The stator core comprises a plurality of stacked stator punching sheets, the largest dimension A of each stator punching sheet along the length direction is unequal to the largest dimension B along the width direction, the stacking directions of two adjacent stator punching sheets differ by 90 degrees, and ventilation grooves are formed in the side wall of the stator core.

Further, a locating plate is arranged on the end cover body, a locating groove is formed in the stator core, and the locating plate can be inserted into the locating groove.

The end cover of the reluctance motor is provided with the protection corner used for supporting the plug connector of the reluctance motor, the plug connector is at least partially positioned in the protection corner, and the protection corner provides supporting force for the plug connector when the terminal is plugged or the plug connector is collided, so that the plug connector is prevented from bending or breaking at the root part of the plug connector, and the end cover is particularly suitable for motors with more crowded inner space or easy collision in the process of installation and use.

The reluctance motor comprises the end cover of the reluctance motor, and the protection corner is supported on the plug connector after being installed, so that the damage of the plug connector due to stress is avoided, the service life of the whole motor is prolonged, and the end cover is particularly suitable for working conditions in which severe vibration or jolt can occur.

Drawings

FIG. 1 is a schematic diagram of a reluctance motor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a protection corner and a connector after being buckled according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a reluctance motor end cap according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a second schematic view of a magneto-resistive motor end cap according to an embodiment of the present invention;

FIG. 6 is a third schematic diagram of a reluctance motor end cap according to an embodiment of the present invention;

FIG. 7 is a schematic illustration of a plug connector and stator frame according to an embodiment of the present invention;

FIG. 8 is a second schematic view of a plug connector and a stator frame according to an embodiment of the present invention;

fig. 9 is a side view of a plug and stator bracket provided in an embodiment of the present invention.

In the figure:

1. an end cap body; 2. protecting the corner; 3. a reinforcing surface; 4. a plug-in component; 5. a positioning groove; 6. a stator support; 11. a positioning sheet; 21. a first protective surface; 22. a second protective surface; 23. a third protective surface; 41. reinforcing ribs; 42. a terminal; 43. a longitudinal rotation shaft; 44. and a transverse rotating shaft.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

The present embodiment discloses a reluctance motor end cover and a reluctance motor including the end cover. As shown in fig. 1, the reluctance motor comprises a stator core and an end cover, wherein a plug connector 4 is arranged on the stator core, a protection corner 2 and a positioning piece 11 are arranged on the side edge of an end cover body 1 of the reluctance motor end cover, and the protection corner 2 is supported on the plug connector 4 after installation. The protection corner 2 is used for supporting the plug connector 4 of the reluctance motor, the protection corner 2 is propped against the end head of the plug connector 4 after installation, and the protection corner 2 can provide supporting force for the plug connector 4 when the plug terminal or the plug connector 4 is collided, so that the plug connector 4 is prevented from bending or breaking at the root (the position of the plug connector 4, which is close to the outer side surface of the end cover body 1). The locating piece 11 is used for being matched with the locating groove 5 on the stator core, the locating piece 11 can be inserted into the locating groove 5 after installation, the location is more accurate, an operator does not need to spend time to align the installation holes on the end cover and the stator during installation, and the installation holes of the end cover and the installation holes of the stator are aligned as long as the locating piece 11 is inserted into the locating groove 5.

The plug connector 4 is arranged on the stator bracket 6, when a terminal is plugged or the plug connector 4 is impacted, the external force born by the plug connector 4 which is arranged in a suspending manner almost acts on the root of the plug connector 4, and when the external force is large enough, the plug connector can be bent or even broken. Fig. 2 is a bottom view of the end cap body 1 according to the present embodiment, which is engaged with the stator core. The first protection surface 21, the second protection surface 22 and the third protection surface 23 of the protection corner 2 are connected in sequence to form a recess structure in which the end of the plug-in connector 4 is located. The concave structure plays a role in limiting and supporting the plug connector 4 when the terminal is plugged or the plug connector 4 is collided, so that the plug connector 4 cannot bend towards the root of the plug connector. Namely, the concave structure changes the part of the plug connector 4 positioned at the outer side of the end cover body 1 from a suspended state to a state with both ends being supported, and the root is not easy to bend.

The structure of the end cap is shown in fig. 3 to 6, and the protection corner 2 is provided at the edge of the end cap body 1 and extends outward in the radial direction of the end cap body 1. In order to be able to better fix the end of the plug 4, the protection corner 2 has an S-shaped cross section perpendicular to the axial direction of the end cap body 1, wherein the two connected

protection surfaces

21, 22 and 23 form a set angle (for example, a right angle).

The protection corner 2 is also arranged in a suspending manner, and the root part of the protection corner 2 (the joint of the protection corner 2 and the outer side surface of the end cover body 1) is easy to bend and even break. In order to increase the strength of the protective corner 2, a reinforcing surface 3 is provided between the protective corner 2 and the end cap body 1, the position of the reinforcing surface 3 being clearly shown in fig. 4 and 5. The S-shaped protection corner 2 comprises two concave structures with opposite opening directions, wherein one concave structure consists of the first protection surface 21, the second protection surface 22 and the third protection surface 23, and the concave structure is relatively farther away from the outer side surface of the end cover body 1; the other concave structure is closer to the outer side face of the end cover body 1, a part of the reinforcing surface 3 stretches into the concave structure, and the wall surface of the concave structure and the reinforcing surface 3 jointly act to strengthen the strength of the root of the protection corner 2.

The reluctance motor end cap includes a front end cap and a rear end cap, and the protection corner 2 is provided on the front end cap. In order to further protect the plug connector 4, auxiliary supporting pieces are further arranged on the front end cover and the rear end cover respectively, the columnar auxiliary supporting pieces can be abutted against the upper surface or the lower surface of the plug connector 4 after being installed, supporting force is provided for the plug connector 4 at the position between the edge of the end cover body 1 and the protection corner 2, and the auxiliary protection corner 2 plays a supporting role.

In addition to improving the strength of the root portion of the plug 4, it is also necessary to improve the strength of the body of the plug 4, so as to avoid the plug 4 from being damaged directly when the terminal is plugged or pulled out. As shown in fig. 7 and 8, the front surface of the connector 4 main body is provided with a terminal 42, and the back surface of the connector 4 main body is provided with a reinforcing rib 41, and when an operator presses the connector 4 main body to insert and withdraw the terminal, the reinforcing rib 41 supports the entire connector 4 main body, thereby preventing the connector 4 main body from being damaged.

As shown in fig. 7, the terminal 42 (the body of the connector 4) is provided obliquely with respect to the outer peripheral surface of the stator frame 6 (the outer peripheral surface where the connector 4 is connected to the stator frame 6), so that an installation space is provided for the detection signal output terminal of the motor. This oblique arrangement of the terminals 42 has the obvious disadvantage that: occupies a relatively large space and is easy to collide during installation and use.

In order to eliminate this disadvantage, as shown in fig. 7, a longitudinal axis of rotation 43 is provided on the plug 4, the plug 4 being rotatable about the longitudinal axis of rotation 43, the curve with double arrows showing the direction of rotation of the plug 4. When the detection signal output terminal is provided in the motor, the plug 4 is still set in an inclined state; when no detection signal output terminal is provided in the motor, the plug 4 rotates around the longitudinal rotation shaft 43 until the terminal 42 is parallel to the outer peripheral surface of the stator frame 6, saving space and reducing the probability of being collided. In fig. 7 it appears that the plug 4 is fixedly connected to the outer circumferential surface of the stator frame 6, but in practice the plug 4 can rotate about the longitudinal axis of rotation 43; in order to provide a sufficiently large rotational space for the plug-in element 4, the root of the plug-in element 4 can be designed to be inclined, as shown in fig. 8, and the longitudinal axis of rotation 43 brings the root of the plug-in element 4 into a hinged relationship with the stator frame 6, the plug-in element 4 being more flexible to rotate.

In addition to rotation in the horizontal plane, the plug 4 can also rotate in the vertical plane, which also serves to save space. As shown in fig. 9, the connector 4 is provided with a transverse rotation shaft 44, and the connector 4 can rotate around the transverse rotation shaft 44. In this structure, when the detection signal output terminal is not provided in the motor, the plug 4 rotates in the direction indicated by the double-headed arrow in the figure, and the space occupied by the whole motor is reduced.

The stator core of the reluctance motor comprises a plurality of stacked stator punching sheets, the largest dimension A of each stator punching sheet along the length direction is unequal to the largest dimension B along the width direction, the stacking directions of two adjacent stator punching sheets differ by 90 degrees, ventilation grooves are formed in the side wall of the stator core, and the cooling effect is better.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. The utility model provides a reluctance motor end cover, includes end cover body (1), its characterized in that be provided with on end cover body (1) and be used for the restriction reluctance motor's plug connector (4) motion protection turning (2), plug connector (4) can supply external terminal grafting, the inside wall of protection turning (2) is formed with first protection face (21), second protection face (22) and third protection face (23), first protection face (21), second protection face (22) and third protection face (23) connect gradually and form the concave structure, the end of plug connector (4) hold in the concave structure, plug connector (4) the end lateral wall orientation of plug connector (4) has the trend when the plug connector (4) receives the collision, at least one of first protection face (21), second protection face (22) and third protection face (23) on protection turning (2) inside wall with the end of plug connector (4) supports root (4) of bending to avoid bending.

2. Reluctance motor end cap according to claim 1, characterized in that a reinforcing surface (3) is formed between the protection corner (2) and the end cap body (1).

3. A reluctance motor end cap according to any one of claims 1 and 2, characterized in that the reluctance motor end cap comprises a front end cap and a rear end cap, on which are provided auxiliary supports for supporting the reluctance motor plug, respectively.

4. A reluctance motor comprising a stator core on which the plug (4) is mounted, characterized in that it further comprises a reluctance motor end cap according to any one of claims 1 to 3, the protection corner (2) being supported on the plug (4) after mounting.

5. Reluctance motor according to claim 4, characterized in that the plug-in connection (4) is provided with a stiffening rib (41), which stiffening rib (41) is located at the back of the plane of the terminal (42).

6. Reluctance motor according to claim 4, characterized in that the plug-in part (4) is provided with a longitudinal rotation axis (43), the plug-in part (4) being rotatable about the longitudinal rotation axis (43).

7. Reluctance motor according to claim 4, characterized in that the plug-in connection (4) is provided with a transverse rotation shaft (44), the plug-in connection (4) being rotatable about the transverse rotation shaft (44).

8. A reluctance motor according to any one of claims 4 to 7, wherein the stator core includes a plurality of stacked stator laminations, a largest dimension a of each of the stator laminations in a length direction is unequal to a largest dimension B of each of the stator laminations in a width direction, stacking directions of adjacent two of the stator laminations differ by 90 °, and ventilation grooves are formed in side walls of the stator core.

9. Reluctance motor according to claim 8, characterized in that a spacer (11) is provided on the end cap body (1) and a spacer groove (5) is provided on the stator core, the spacer (11) being insertable in the spacer groove (5).