Protective cover at rear end of motor

Abstract

The utility model discloses a motor rear end protection cover which is installed on a stator body and used for protecting a coil, the rear end of the stator body is connected with a rear end cover through a fastener, and the rear end cover is in an arch shape. The sealing covers are symmetrically arranged on the two sides of the rear end cover and used for covering the exposed part, corresponding to one end of the rear end cover, of the coil, and when the rear end cover is installed on the stator body, the sealing covers are locked on the stator body by the rear end cover. According to the utility model, the coil can be protected, the coil is prevented from being damaged due to the fact that the coil is exposed outside and is collided by other parts, and the installation structure is firm and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a rear-end protection cover for a motor. Background Art

[0002] The stator of the motor realizes the continuous rotation of the rotor through the magnetic force generated during the energization process of the coil body. Generally, the coil is wound around the stator body in a ring shape.

[0003] Since the overall structure of the motor is relatively compact, after the motor is installed on the equipment, the coil is exposed, and other components on the equipment can easily collide with the coil, which may cause the coil to be damaged or broken, affecting the safety performance and service life of the motor.

[0004] To solve the above problems, the utility model patent with the patent application number 202123255549.X discloses a motor stator with a coil cover. It is connected to the stator body by setting a cover to protect the coil. The connection between the cover and the stator body is realized by the engagement of a hook and a mounting post. The firmness of this connection structure is poor and it is easy to fall off under external force. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a rear-end protection cover for a motor. The utility model can not only protect the coil, avoid damage caused by collision of other components due to the exposure of the coil, but also has a firm and reliable installation structure.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rear-end protection cover for a motor, which is installed on the stator body to protect the coil. A rear-end cover is connected to the rear end of the stator body through fasteners. The rear-end cover is in an arched shape and includes cover caps symmetrically arranged on both sides of the rear-end cover to cover the part of the coil exposed at one end corresponding to the rear-end cover. When the rear-end cover is installed on the stator body, the cover caps are locked on the stator body by the rear-end cover.

[0007] By adopting the above technical solution, by setting cover caps on the stator body to cover the part of the coil exposed at one end corresponding to the rear-end cover, the coil is protected, and damage caused by collision of other components due to the exposure of the coil can be avoided, which can significantly improve the safety performance and service life of the motor. And since the cover caps are locked on the stator body by the rear-end cover when the rear-end cover is installed on the stator body, the connection structure will not be damaged due to external force, and the installation structure is firm and reliable.

[0008] The present utility model is further configured such that the cover includes a side plate extending vertically, an inclined plate provided at the top end of the side plate and extending towards the rear end cover, and a reinforcing plate provided on one side of the side plate. The side plate, the inclined plate, and the reinforcing plate form a concave protective cavity for accommodating the rear end of the coil.

[0009] By adopting the above technical solution, the shape design of the cover is reasonable and reliable. It can not only well accommodate the coil, but also has the advantage of high structural strength.

[0010] The present utility model is further configured such that an arc-shaped recess for yielding to the coil is provided on the inner side of the side plate.

[0011] By adopting the above technical solution, a more suitable installation space can be provided for the coil, and the structural reliability is high.

[0012] The present utility model is further configured such that the cover and the rear end cover are of an integral structure. The inclined plate is connected to the rear end cover. When the rear end cover is installed on the stator body, the end of the side plate away from the inclined plate abuts tightly against the rear end of the stator body.

[0013] By adopting the above technical solution, it is the first implementation manner of the cover structure. Designing the cover and the rear end cover as an integral structure has the advantages of high strength and convenient production.

[0014] The present utility model is further configured such that reinforcing ribs are provided between the side plate, the inclined plate, and the rear end cover.

[0015] By adopting the above technical solution, the overall strength of the cover can be further improved, thereby its service life.

[0016] The present utility model is further configured such that the cover and the rear end cover are of a split structure. A vertical limiting plate is provided on the inner side of the inclined plate of the cover, and a horizontal limiting plate is provided on the inner side of the side plate of the cover. When the rear end cover is installed on the stator body, the inner end of the rear end cover abuts tightly against the vertical limiting plate, causing the cover to be pressed on the stator body, and the horizontal limiting plate abuts tightly against the inner side of the stator body.

[0017] By adopting the above technical solution, it is the second implementation manner of the cover structure. Designing the cover and the rear end cover as a split structure, only need to first set the cover on the stator body, and then connect the rear end cover to the stator body. The installation of the cover can be realized through the pressing action of the rear end cover and the limiting structure of the cover itself. Its installation is very convenient, and during use, the cover cannot be removed alone due to the limiting structure, which improves the reliability of its installation structure.

[0018] The present utility model is further configured such that there are two vertical limiting plates on the inner side of the inclined plate, and the two vertical limiting plates are arranged in a "V-shaped" manner. There are two inclined platforms on the inner side of the rear end cover, which are respectively in contact with the corresponding inclined plates.

[0019] By adopting the above technical solution, not only is the structural fit better, but on the basis of ensuring vertical limitation, this structure can also perform horizontal limitation, avoiding lateral displacement of the cover, and improving the stability of the cover installation structure.

[0020] The present utility model is further configured such that the vertical limiting plate is provided with a barb portion, and the barb portion abuts against the inner side of the inclined platform.

[0021] By adopting the above technical solution, the cover can be further limited, and the stability of its rear end connection structure is improved.

[0022] The present utility model is further configured such that the horizontal limiting plate includes a connecting base portion provided on the inner side of the side plate and a limiting block provided on the connecting base portion. The connecting base portion is in the shape of a right triangle or a right trapezoid, and the surface of the limiting block in contact with the inner side of the stator body is an arc surface.

[0023] By adopting the above technical solution, the horizontal limiting plate not only has high structural strength, but also the surface of the limiting block on the horizontal limiting plate in contact with the inner side of the stator body is designed as an arc surface, which can avoid scratching the stator body by the limiting block and play a role in protecting the stator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the cover and the rear end cover in an integrated structure applied to a motor;

[0025] Figure 2 It is a schematic structural diagram of the cover and the rear end cover in an integrated structure from the first perspective;

[0026] Figure 3 It is a schematic structural diagram of the cover and the rear end cover in an integrated structure from the second perspective;

[0027] Figure 4 It is a schematic structural diagram of the cover and the rear end cover in a split structure applied to a motor;

[0028] Figure 5 It is a schematic diagram of the cover and the rear end cover in a split structure;

[0029] Figure 6 It is a schematic structural diagram of the cover when the cover and the rear end cover are in a split structure;

[0030] Figure 7Schematic diagram of the rear end cover when the cover and the rear end cover are of a split structure.

[0031] In the figure: 1, stator body; 2, coil; 3, rear end cover; 4, cover; 5, side plate; 6, inclined plate; 7, reinforcing plate; 8, protective concave cavity; 9, arc-shaped concave part; 10, reinforcing rib; 11, vertical limiting plate; 12, horizontal limiting plate; 13, inclined table; 14, barb part; 15, connecting base; 16, limiting block. Specific embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Embodiment: As shown in the attached Figures 1 to 7 The rear-end protection cover of the motor shown is installed on the stator body 1 to protect the coil 2. The rear end of the stator body 1 is connected with a rear end cover 3 through fasteners. The fasteners are generally a combination structure of a screw and a nut. The rear end cover 3 is in an arched shape. The rear-end protection cover of the motor includes cover 4 symmetrically arranged on both sides of the rear end cover 3 to cover the part of the coil 2 exposed at one end corresponding to the rear end cover 3. And when the rear end cover 3 is installed on the stator body 1, the cover 4 is locked on the stator body 1 by the rear end cover 3. By arranging the cover 4 on the stator body 1 to cover the part of the coil 2 exposed at one end corresponding to the rear end cover 3, the coil 2 is protected, avoiding damage caused by the coil 2 being collided by other components when exposed. It can significantly improve the safety performance and service life of the motor. And because when the rear end cover 3 is installed on the stator body 1, the cover 4 is locked on the stator body 1 by the rear end cover 3, its connection structure will not be damaged due to external forces, and the installation structure is firm and reliable.

[0034] As shown in the attached Figures 1 to 7 The cover 4 includes a side plate 5 extending vertically, an inclined plate 6 arranged at the top of the side plate 5 and extending towards the rear end cover 3, and a reinforcing plate 7 arranged on one side of the side plate 5. Among them, the side plate 5, the inclined plate 6 and the two reinforcing plates 7 are of an integral structure. A cross plate can also be arranged at the end of the inclined plate 6 far from the side plate 5 for connecting with the rear end cover 3. The side plate 5, the inclined plate 6 and the reinforcing plate 7 form an inwardly concave protective concave cavity 8 for accommodating the rear end of the coil 2. The outer shape design of the cover 4 is reasonable and reliable, which can not only well accommodate the coil 2, but also has the advantage of high structural strength.

[0035] As shown in the attached Figures 1 to 7As shown, an arc-shaped recess 9 is provided on the inner side of the side plate 5 and recesses inward to make way for the coil 2. This design can provide a more suitable installation space for the coil 2 and has high structural reliability.

[0036] As shown in the Figures 1 to 3 attachment, the first embodiment of the structure of the cover 4 is as follows: the cover 4 and the rear end cover 3 are of an integral structure, the inclined plate 6 is connected to the rear end cover 3, and when the rear end cover 3 is installed on the stator body 1, the end of the side plate 5 away from the inclined plate 6 abuts against the rear end of the stator body 1. Designing the cover 4 and the rear end cover 3 as an integral structure has the advantages of high strength and convenient production.

[0037] As shown in the Figures 1 to 3 attachment, reinforcing ribs 10 are provided between the side plate 5, the inclined plate 6 and the rear end cover 3. This design can further improve the overall strength of the cover 4 and thus its service life.

[0038] As shown in the Figures 4 to 7 attachment, the second embodiment of the structure of the cover 4 is as follows: the cover 4 and the rear end cover 3 are of a split structure, a vertical limiting plate 11 is provided on the inner side of the inclined plate 6 of the cover 4, and a horizontal limiting plate 12 is provided on the inner side of the side plate 5 of the cover 4. When the rear end cover 3 is installed on the stator body 1, the inner end of the rear end cover 3 abuts against the vertical limiting plate 11, causing the cover 4 to be pressed on the stator body 1, and the horizontal limiting plate 12 abuts against the inner side of the stator body 1. Designing the cover 4 and the rear end cover 3 as a split structure, only need to first set the cover 4 on the stator body 1, and then connect the rear end cover 3 to the stator body 1. Through the pressing action of the rear end cover 3 and the limiting structure of the cover 4 itself, the installation of the cover 4 can be realized. Its installation is very convenient, and during use, the cover 4 cannot be removed alone due to the action of the limiting structure, improving the reliability of its installation structure.

[0039] As shown in the Figures 4 to 7 attachment, there are two vertical limiting plates 11 on the inner side of the inclined plate 6, and the two vertical limiting plates 11 are arranged in a "V-shaped" pattern. Two inclined platforms 13 are provided on the inner side of the rear end cover 3 and are respectively fitted with the corresponding inclined plates 6. This design not only has better structural fit, but also can perform lateral limiting on the basis of ensuring vertical limiting, avoiding lateral displacement of the cover 4 and improving the stability of the installation structure of the cover 4.

[0040] As shown in the Figures 4 to 7 attachment, a barb portion 14 is provided on the vertical limiting plate 11, and the barb portion 14 abuts against the inner side of the inclined platform 13. In this embodiment, the barb portion 14 is in a semi-circular shape. This design can further limit the cover 4 and improve the stability of its rear end connection structure.

[0041] As shown in the Figures 4 to 7As shown, the horizontal limiting plate 12 includes a connecting base portion 15 disposed inside the side plate 5 and a limiting block 16 disposed on the connecting base portion 15. The connecting base portion 15 has a right triangle or right trapezoid shape. The surface of the limiting block 16 that abuts against the inner side of the stator body 1 is an arc surface. In this embodiment, the limiting block 16 is in the shape of a semi-cylinder. The horizontal limiting plate 12 not only has high structural strength, but also the surface of the limiting block 16 on the horizontal limiting plate 12 that abuts against the inner side of the stator body 1 is designed as an arc surface, which can prevent the limiting block 16 from scratching the stator body 1 and plays a role in protecting the stator body 1.

Claims

1. The motor rear protection cover is installed on the stator body (1) to protect the coil (2). The rear end of the stator body (1) is connected with a rear end cover (3) through fasteners. The rear end cover (3) is in an arched shape, and is characterized in that: It includes capping covers (4) symmetrically arranged on both sides of the rear end cover (3) for covering the exposed parts of the coil (2) at one end corresponding to the rear end cover (3). When the rear end cover (3) is installed on the stator body (1), the capping covers (4) are locked on the stator body (1) by the rear end cover (3).

2. The motor rear end protection cover according to claim 1, characterized in that: The capping cover (4) includes a side plate (5) extending vertically, an inclined plate (6) arranged at the top of the side plate (5) and extending towards the rear end cover (3), and a reinforcing plate (7) arranged on one side of the side plate (5). The side plate (5), the inclined plate (6) and the reinforcing plate (7) form a concave protective cavity (8) for accommodating the rear end of the coil (2).

3. The motor rear protection cover according to claim 2, wherein: An arc-shaped recess (9) for making way for the coil (2) is arranged on the inner side of the side plate (5).

4. The motor rear protection cover according to claim 2, characterized in that: The capping cover (4) and the rear end cover (3) are of an integral structure. The inclined plate (6) is connected to the rear end cover (3). When the rear end cover (3) is installed on the stator body (1), the end of the side plate (5) away from the inclined plate (6) abuts tightly against the rear end of the stator body (1).

5. The motor rear protection cover according to claim 4, characterized in that: Reinforcing ribs (10) are arranged between the side plate (5), the inclined plate (6) and the rear end cover (3).

6. The motor rear-end protection cover according to claim 2, characterized in that: The capping cover (4) and the rear end cover (3) are of a split structure. A vertical limiting plate (11) is arranged on the inner side of the inclined plate (6) of the capping cover (4), and a horizontal limiting plate (12) is arranged on the inner side of the side plate (5) of the capping cover (4). When the rear end cover (3) is installed on the stator body (1), the inner end of the rear end cover (3) abuts tightly against the vertical limiting plate (11), causing the capping cover (4) to be pressed on the stator body (1), and the horizontal limiting plate (12) abuts tightly against the inner side of the stator body (1).

7. The motor rear protection cover according to claim 6, characterized in that: There are two vertical limiting plates (11) on the inner side of the inclined plate (6), and the two vertical limiting plates (11) are arranged in a "V" shape. Two inclined platforms (13) respectively fitting with the corresponding inclined plates (6) are arranged on the inner side of the rear end cover (3).

8. The motor rear end protection cover according to claim 7, wherein: Hook-shaped portions (14) are arranged on the vertical limiting plate (11), and the hook-shaped portions (14) abut tightly against the inner sides of the inclined platforms (13).

9. The motor rear end protection cover according to claim 6, characterized in that: The horizontal limiting plate (12) includes a connecting base portion (15) arranged on the inner side of the side plate (5) and a limiting block (16) arranged on the connecting base portion (15). The connecting base portion (15) is in the shape of a right triangle or a right trapezoid, and the surface of the limiting block (16) abutting against the inner side of the stator body (1) is an arc surface.

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