End cover for motor, motor and vehicle

Abstract

The utility model discloses an end cover for a motor, the motor and a vehicle. The end cover for the motor comprises an end cover body and a protective cover. The protective cover is connected with the end cover body, at least one communicating port is formed in the protective cover, and the communicating port communicates the interior and the exterior of the protective cover in the circumferential direction of the protective cover. The protective cover is arranged on the end cover body, so that the entering amount of dust such as muddy water in the protective cover can be reduced, and the influence on rotation of a motor shaft matched with the protective cover is reduced; meanwhile, the communication port formed by the protective cover can communicate the inside and the outside of the protective cover, so that airflow enters and takes away heat of the motor, and the working efficiency of the motor is improved. When a small amount of muddy water enters the protective cover from the communicating port, the muddy water in the protective cover is discharged to the outside from the communicating port close to the lower part under the action of gravity, so that the muddy water is prevented from being accumulated in the protective cover, the working condition of the motor is improved, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to an end cover for a motor, a motor and a vehicle. Background Art

[0002] In the existing technology, the motor is generally located in the chassis of the vehicle, and due to the poor sealing of the vehicle motor, especially the generator installed at the bottom of the vehicle for generating electricity for the vehicle, mud and water caused by the contact between the wheels and the road surface splash into the generator when the vehicle is driving, and enter the interior of the generator as the generator rotor rotates, such as between the generator's collector ring and the carbon brush, and at the same time enter the brush cavity. The residual mud and dirt can easily cause the carbon brush to get stuck and have poor contact, and the excitation current to be interrupted, causing the generator to fail, affecting the vehicle's driving safety. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide an end cover for a motor, which can improve the sealing performance of the motor.

[0004] The second object of the present invention is to provide a motor, comprising the end cover, the regulator and the motor shaft described in the above embodiment.

[0005] The third object of the present invention is to provide a vehicle comprising the motor described in the above embodiment.

[0006] According to the first aspect of the present invention, an end cover for a motor includes an end cover body and a protective cover, wherein the protective cover is connected to the end cover body, and the protective cover is formed with at least one connecting port, which connects the inside and outside of the protective cover along the circumference of the protective cover.

[0007] According to the end cap for a motor of the present invention, by providing a protective cover on the end cap body, the amount of dust, such as mud and water, that enters the protective cover can be reduced, thereby reducing the impact on the rotation of the motor shaft engaged with the protective cover. Furthermore, the communication port formed by the protective cover can connect the interior and exterior of the protective cover, allowing airflow to enter and remove heat from the motor, thereby improving the motor's operating efficiency. When a small amount of mud and water enters the interior of the protective cover through the communication port, gravity forces the mud and water inside the protective cover to drain to the outside through the communication port near the bottom, preventing accumulation of mud and water inside the protective cover, improving the operating conditions of the motor, and extending the motor's service life.

[0008] In some embodiments, the protective cover includes: a first shielding member and a second shielding member, the first shielding member extends along the circumference of the protective cover; the second shielding member is arranged on the radial outside of the first shielding member along the protective cover, and the first shielding member and the second shielding member define the connecting port.

[0009] In some embodiments, there are multiple first shielding members, and the multiple first shielding members are arranged at intervals along the circumference of the protective cover; there are multiple second shielding members, and the multiple second shielding members are arranged at intervals along the circumference of the protective cover, and the multiple first shielding members and the multiple second shielding members are alternately arranged along the circumference of the protective cover.

[0010] In some embodiments, the second shielding member is arranged between two adjacent first shielding members, and both ends of the second shielding member extend obliquely toward one end of the two adjacent first shielding members respectively; and / or at least one end of the first shielding member extends obliquely toward the second shielding member adjacent to it.

[0011] In some embodiments, the first shielding member includes a first main body and a first bending portion, the first bending portion is provided at at least one end of the first main body along the circumference of the protective cover, one end of the first bending portion is connected to the first main body, and the other end of the first bending portion extends obliquely toward the second shielding member; the second shielding member includes a second main body and a second bending portion, the second bending portion is provided at at least one end of the second main body along the circumference of the protective cover, one end of the second bending portion is connected to the second main body, and the other end of the second bending portion extends obliquely toward the first shielding member; the two first bending portions adjacent to each other of two adjacent first shielding members are located between the two ends of the same second shielding member.

[0012] In some embodiments, projections of adjacent first bending portions and second bending portions along the circumference of the protective cover at least partially overlap.

[0013] In some embodiments, the protective cover further includes: a barrier rib, wherein the barrier rib is provided between the adjacent first bending portion and the second bending portion.

[0014] In some embodiments, a plurality of openings are formed on the protective cover, and the openings are formed by two adjacent first shielding members, and some of the openings are opposite to the second shielding member along the radial direction of the protective cover; and some of the openings are formed as installation openings suitable for installing the regulator.

[0015] According to an embodiment of the second aspect of the present invention, the motor includes: an end cover, a regulator and a motor shaft, the end cover is the end cover for the motor described in any one of the embodiments of the first aspect; the regulator is arranged at the mounting port of the end cover, and the regulator includes a carbon brush; one end of the motor shaft extends into the protective cover of the end cover, and the carbon brush is stopped against the motor shaft.

[0016] The vehicle according to the third embodiment of the present invention comprises the motor described in any one of the second embodiments.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 1 is a schematic diagram of an end cover for a motor according to an embodiment of the present utility model from one perspective;

[0020] Figure 2 is a schematic diagram of an end cover for a motor according to an embodiment of the present utility model from another perspective;

[0021] Figure 3 is a schematic diagram of an end cover for a motor according to an embodiment of the present utility model from another perspective;

[0022] Figure 4 yes Figure 3 Enlarged schematic diagram of the P region in the middle.

[0023] Reference numerals:

[0024] 100, end cap;

[0025] 10. End cover body;

[0026] 20. Protective cover;

[0027] 30. Connecting port;

[0028] 40. First shielding member; 401. First sub-shielding member; 402. Second sub-shielding member; 403. Third sub-shielding member; 41. First main body; 42. First bending portion;

[0029] 50, second shielding member; 501, fourth sub-shielding member; 502, fifth sub-shielding member; 51, second main body; 52, second bending portion;

[0030] 60. Opening; 61. Mounting port;

[0031] 70. Blocking tendons. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-4 An end cover 100 for a motor according to an embodiment of the present invention is described. The end cover 100 includes an end cover body 10 and a protective cover 20 .

[0033] Specifically, if Figure 1 As shown, the protective cover 20 is connected to the end cover body 10 , and the protective cover 20 is formed with at least one communication port 30 , which connects the inside and outside of the protective cover 20 along the circumference of the protective cover 20 .

[0034] Specifically, a protective cover 20 is provided on the side of the end cap body 10 facing the center of the motor. One end of the protective cover 20 is connected to the center of the end cap body 10, and the other end of the protective cover 20 extends away from the end cap body 10 along the thickness direction of the end cap body 10. At least one communication port 30 is formed in the protective cover 20 and along its radially outer side. The communication port 30 extends circumferentially and connects the interior and exterior of the protective cover 20. When muddy water enters the end cap body 10, some of the water enters the protective cover 20 through the communication port 30 and then flows out of the protective cover 20 through the communication port 30.

[0035] In this embodiment, the motor is a generator used to generate electricity for the vehicle. The generator is an important electrical component that can convert the rotational energy driven by the vehicle's engine into electrical energy and provide a stable power supply to the vehicle's battery and other electrical equipment. The generator utilizes the principle of electromagnetic induction, generating a magnetic field through rotation, and then through the rotor rotating through the coaxial motor, to achieve a change in magnetic flux, generate an electric potential difference, and then generate current. The vehicle battery is charged by the generator, so that the various electrical equipment of the vehicle has sufficient power support to operate normally. When the vehicle's engine is just started, it has not yet generated sufficient rotational energy. At this time, the vehicle's battery is the source of electricity for starting the engine. As the engine gradually rotates stably, it can provide sufficient rotational energy to start the vehicle's generator and charge the battery for power.

[0036] According to the end cap 100 for a motor according to an embodiment of the present invention, by providing a protective cover 20 on the end cap body 10, the amount of dust, such as mud and water, that enters the protective cover 20 can be reduced, thereby reducing the impact on the rotation of the motor shaft engaged with the protective cover 20. At the same time, the connecting port 30 formed by the protective cover 20 can connect the interior and exterior of the protective cover 20, allowing airflow to enter and remove heat from the motor, thereby improving the motor's operating efficiency. When a small amount of mud and water enters the interior of the protective cover 20 through the connecting port 30, under the action of gravity, the mud and water inside the protective cover 20 is discharged to the outside through the connecting port 30 near the bottom, preventing the mud and water from accumulating inside the protective cover 20, improving the working conditions of the motor, and extending the service life of the motor.

[0037] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the protective cover 20 includes: a first shielding member 40 and a second shielding member 50, the first shielding member 40 extends along the circumference of the protective cover 20; the second shielding member 50 is arranged on the radial outside of the first shielding member 40 along the protective cover 20, and the first shielding member 40 and the second shielding member 50 define a connecting port 30.

[0038] Specifically, a first shielding member 40 is provided within the protective cover 20. One side of the first shielding member 40 is connected to the end cover body 10, and the other side of the first shielding member 40 extends away from the end cover body 10 along the thickness direction of the end cover body 10. The first shielding member 40 also extends circumferentially along the protective cover 20. A second shielding member 50 is provided radially outward of the first shielding member 40. One side of the second shielding member 50 is connected to the end cover body 10, and the other side of the second shielding member 50 extends away from the end cover body 10 along the thickness direction of the end cover body 10. The second shielding member 50 also extends circumferentially along the protective cover 20. The first and second shielding members 40, 50 are provided on the same side of the end cover body 10, adjacent to the center of the motor. The adjacent ends of the first and second shielding members 40, 50 jointly define a communication port 30.

[0039] In this embodiment, there are multiple communication openings 30, which are spaced apart along the circumference of the protective cover 20. When a vehicle enters a flooded section, the splashed muddy water is blocked by the first shield 40 and the second shield 50, and a small amount of muddy water enters the interior of the protective cover 20 from the multiple communication openings 30 under the action of the impact force; when the vehicle exits the flooded section, the muddy water inside the protective cover 20 is discharged from the protective cover 20 due to gravity. Figure 1 The communication port 30 at the middle lower part discharges to the outside.

[0040] Thus, the first shielding member 40 and the second shielding member 50 define the communication port 30, which facilitates the passage of some muddy water after the vehicle exits the flooded road section. Figure 1 The middle lower connecting port 30 discharges the protective cover 20. At the same time, since the motor shaft of the motor arranged inside the protective cover 20 generates heat during operation, the setting of the connecting port 30 facilitates airflow into the protective cover 20 to take away the heat for dissipation.

[0041] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, there are multiple first shielding members 40, and the multiple first shielding members 40 are arranged at intervals along the circumference of the protective cover 20; there are multiple second shielding members 50, and the multiple second shielding members 50 are arranged at intervals along the circumference of the protective cover 20, and the multiple first shielding members 40 and the multiple second shielding members 50 are alternately arranged along the circumference of the protective cover 20.

[0042] The plurality of first shielding members 40 further include a first sub-shielding member 401, a second sub-shielding member 402 and a third sub-shielding member 403, and the plurality of second shielding members 50 include a fourth sub-shielding member 501 and a fifth sub-shielding member 502. The first bending portion 42 provided at one end adjacent to each other of the first sub-shielding member 401 and the second sub-shielding member 402 is bent and extended toward the fourth sub-shielding member 501 adjacent thereto, and the fifth sub-shielding member 502 is provided between the second sub-shielding member 402 and the third sub-shielding member 403. The ends adjacent to each other of the second sub-shielding member 402 and the fifth sub-shielding member 502 and the ends adjacent to each other of the third sub-shielding member 403 and the fifth sub-shielding member 502 respectively define a connecting port 30. After a small amount of impurities such as mud and water enter the protective cover 20 from the connecting port 30, when the vehicle leaves the wading section, the mud and water entering the inside of the protective cover 20 can be discharged from the protective cover 20 under the action of its own gravity. Figure 1 The communicating port at the middle lower part flows out of the protective cover 20 .

[0043] Thus, the plurality of first shielding members 40 are spaced apart along the circumference of the protective cover 20, and the plurality of second shielding members 50 are spaced apart along the circumference of the protective cover 20. The plurality of first shielding members 40 and the plurality of second shielding members 50 are alternately arranged along the circumference of the protective cover 20, thereby providing a double barrier to muddy water and other impurities that enter the end cover body 10, thereby preventing a large amount of muddy water and other impurities from entering the interior of the protective cover 20 and affecting the operation of the internal components of the protective cover 20. At the same time, the interior of the protective cover 20 is ensured to be connected to the outside in multiple directions to achieve airflow and improve heat dissipation capacity.

[0044] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the second shielding member 50 is arranged between two adjacent first shielding members 40, and both ends of the second shielding member 50 are respectively extended obliquely toward one end of the two adjacent first shielding members 40 adjacent to each other; or at least one end of the first shielding member 40 is extended obliquely toward the second shielding member 50 adjacent to each other; or both ends of the second shielding member 50 are respectively extended obliquely toward one end of the two adjacent first shielding members 40 adjacent to each other, and at least one end of the first shielding member 40 is extended obliquely toward the second shielding member 50 adjacent to each other.

[0045] For example, when the two ends of the second shielding member 50 are respectively extended obliquely toward the adjacent ends of the two adjacent first shielding members 40, the two ends of the second shielding member 50 can block mud and water splashing from different directions outside the protective cover 20; when at least one end of the first shielding member 40 is extended obliquely toward the adjacent second shielding member 50, at least one end of the first shielding member 40 can block mud and water splashing from different directions outside the protective cover 20.

[0046] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the first shielding member 40 includes a first main body portion 41 and a first bending portion 42, the first bending portion 42 is provided at at least one end of the first main body portion 41 along the circumference of the protective cover 20, one end of the first bending portion 42 is connected to the first main body portion 41, and the other end of the first bending portion 42 extends obliquely toward the second shielding member 50; the second shielding member 50 includes a second main body portion 51 and a second bending portion 52, the second bending portion 52 is provided at at least one end of the second main body portion 51 along the circumference of the protective cover 20, one end of the second bending portion 52 is connected to the second main body portion 51, and the other end of the second bending portion 52 extends obliquely toward the first shielding member 40; the two first bending portions 42 adjacent to each other of the two adjacent first shielding members 40 are located between the two ends of the same second shielding member 50. The adjacent first bend portion 42 and the second bend portion 52 can form a secondary barrier to external mud and water, reducing the amount of mud and water entering the protective cover 20 from the connecting port 30, while ensuring the connection between the inside and outside of the protective cover 20, and ensuring that the air flow flows between the multiple connecting ports 30 to take away the heat inside the protective cover 20 to achieve a good heat dissipation effect.

[0047] In this embodiment, the first shielding member 40 includes a first main body portion 41 and at least one first bending portion 42. There are multiple first shielding members 40, and the multiple first shielding members 40 include a first sub-shielding member 401 and a second sub-shielding member 402. The first bending portion 42 of the first sub-shielding member 401 and the first bending portion 42 of the second sub-shielding member 402 are arranged adjacent to each other, and the first main body portion 41 is arranged circumferentially along the protective cover 20, wherein the first bending portion 42 of the first shielding member 40 is bent along the thickness direction of the first main body portion 41 from a side adjacent to the center of the protective cover 20 to a side away from the center of the protective cover 20, that is, the first bending portion 42 of the first shielding member 40 all extends obliquely toward one end of the second shielding member 50 adjacent to it. Both ends of the second shielding member 50 are provided with a second bending portion 52 facing the first shielding member 40. The two second bending portions 52 are arranged along the circumference of the protective cover 20 on the side away from the first bending portion 42 adjacent to the two ends of the second shielding member 50. When muddy water splashes into the protective cover 20, the muddy water is first partially blocked by the second bending portion 52, and then partially blocked by the first bending portion 42, and the remaining part enters the protective cover 20. The first bending portion 42 and the second bending portion 52 both have a blocking effect on the muddy water at the connecting port 30, reducing the sand and gravel in the muddy water from entering the interior of the protective cover 20.

[0048] Thus, the two adjacent first bends 42 of the two adjacent first shielding members 40 are located between the two ends of the same second shielding member 50, which can further block the muddy water entering from the connecting port 30, prevent the muddy water from directly entering the protective cover 20, and minimize the wear of the motor caused by muddy water and impurities, improve the working conditions of the motor, and extend the service life of the motor. According to some embodiments of the present invention, such as Figure 1 and Figure 2As shown, the projections of the adjacent first bent portion 42 and the adjacent second bent portion 52 along the circumferential direction of the protective cover 20 at least partially overlap.

[0049] That is, the projections of the first bending portion 42 and the second bending portion 52 on the adjacent ends of the first shielding member 40 and the second bending portion 52 along the circumferential direction of the protective cover 20 at least partially overlap, and the first bending portion 42 of the first shielding member 40 and the second bending portion 52 of the second shielding member 50 are relatively arranged along the circumference of the protective cover 20. The muddy water splashed into the connecting port 30 from the outside of the protective cover 20 can be blocked by the second bending portion 52 of the second shielding member 50, which can reduce the muddy water from directly entering the interior of the protective cover 20. At the same time, the first bending portion 42 of the first shielding member 40 can block part of the mud and sand in the mud and water that enters, so as to further filter out the mud and sand in the mud and water, and avoid the mud and sand entering the interior of the protective cover 20 and causing wear on the motor shaft, thereby affecting the normal use of the motor.

[0050] Therefore, the projections of the adjacent first bending portions 42 and the second bending portions 52 along the circumference of the protective cover 20 at least partially overlap, which can prevent mud and water from directly entering the interior of the protective cover 20 from the connecting port 30, reduce the amount of mud and water entering the interior of the protective cover 20, increase the circulation of airflow between the inside and outside of the protective cover 20, and improve the protection of the protective cover 20 against impurities such as mud and water.

[0051] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the protective cover 20 further includes a barrier rib 70, which is disposed between the adjacent first bend portion 42 and the second bend portion 52. The barrier rib 70 is disposed between the first bend portion 42 and the second bend portion 52, and the barrier rib 70 is connected to at least one of the first bend portion 42 and the second bend portion 52. In this embodiment, the barrier rib 70 is connected to the first bend portion 42 and the second main body portion 51, respectively. The barrier rib 70 extends along the axial direction of the protective cover 20 in a direction away from the end cover body 10, and the height of the barrier rib 70 along the thickness direction of the end cover body 10 is lower than the height of the first shielding member 40 and the second shielding member 50 along the thickness direction of the end cover body 10. The barrier rib 70, the first shielding member 40 and the second shielding member 50 collectively define the communication port 30. The provision of the barrier rib 70 can further block impurities such as mud and water from entering the protective cover 20 through the communication port 30, thereby reducing the amount of mud and water that enters the protective cover 20 and reducing the impact of mud and water on the normal operation of the motor.

[0052] Optionally, the barrier rib 70 may also be connected to the first bending portion 42 and the second bending portion 52 respectively. Figure 1As shown, a plurality of openings 60 are formed on the protective cover 20 , and two adjacent first shielding members 40 form an opening 60 ; part of the opening 60 is opposite to the second shielding member 50 along the radial direction of the protective cover 20 ; part of the opening 60 is formed as an installation opening 61 suitable for installing the regulator.

[0053] That is, a plurality of openings 60 are formed between two adjacent first shielding members 40. The openings 60 are spaced apart along the circumference of the protective cover 20 and communicate with the communication port 30. Some of the openings 60 are radially opposed to the second shielding member 50 in the protective cover 20. For example, if a regulator containing a carbon brush is installed at the mounting port 61, the carbon brush will rub against the motor shaft, and excess carbon powder will fall into the second shielding member 50 radially opposed to the mounting port 61, facilitating the outflow of the carbon powder from the communication port 30.

[0054] As a result, a plurality of openings 60 are formed on the protective cover 20, which facilitate the connection between the openings 60 and the connecting port 30 so that the airflow can circulate in the protective cover 20, thereby quickly taking away the heat; some of the openings 60 are opposite to the second shielding member 50 along the radial direction of the protective cover 20; some of the openings 60 are formed as mounting ports 61, which facilitate the outflow of carbon powder during the operation of the carbon brush in the regulator installed at the mounting port 61, thereby avoiding accumulation in the protective cover 20.

[0055] According to the second embodiment of the present invention, the motor includes: an end cover 100, a regulator and a motor shaft, the end cover 100 is the end cover 100 for the motor of any one of the first embodiment described above; the regulator is arranged at the mounting port 61 of the end cover 100, and the regulator includes a carbon brush; one end of the motor shaft extends into the protective cover 20 of the end cover 100, and the carbon brush is stopped against the motor shaft.

[0056] In this embodiment, the motor also includes a stator and a rotor. The rotor is mounted on the motor shaft and rotates at high speed with the motor shaft. The regulator is located at the mounting port 61, and the carbon brushes on the regulator contact and stop the motor shaft. For example, in a DC motor, the carbon brushes are responsible for changing the conductive coils of the rotor, thereby adjusting the magnetic poles of the rotor and regulating the movement of the motor. This effect is achieved through the position of the carbon brushes in the generator and their interaction with the slip rings, ensuring that the magnetic lines of force between the stator coils and the magnetic field are effectively cut. The DC voltage rectified by the rectifier is transmitted to the slip rings on the rotor through the carbon brushes, so that the motor rotor continuously generates magnetic poles, ensuring the effective transmission of electrical energy.

[0057] As a result, one end of the motor shaft extends into the protective cover 20, and the protective cover 20 can prevent mud and water from entering the interior of the protective cover 20, and can allow some mud and water to enter the protective cover 20 and then be discharged from the connecting port 30, thereby avoiding wear and jamming of the motor shaft, preventing carbon brush jamming, improving motor performance, and improving motor sealing; at the same time, it can maintain the circulation of airflow inside and outside the protective cover 20 to achieve heat dissipation of the motor.

[0058] A vehicle according to an embodiment of the third aspect of the present invention includes the motor of any one of the embodiments of the second aspect.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0060] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An end cover for a motor, characterized in that: include: End cap body; A protective cover connected to the end cover body, the protective cover forming at least one communication port, the protective cover including a first shielding member and a second shielding member, the first shielding member extending along the circumference of the protective cover, the second shielding member being arranged on the radially outer side of the first shielding member, the first shielding member and the second shielding member defining the communication port, the communication port communicating with the interior and exterior of the protective cover along the circumference of the protective cover; The first shielding member includes a first bending portion, which extends obliquely toward the second shielding member. The second shielding member includes a second bending portion, which extends obliquely toward the first shielding member. The projections of adjacent first bending portions and second bending portions along the circumference of the protective cover at least partially overlap.

2. The end cover for a motor according to claim 1, characterized in that: There are a plurality of first shielding members, and the plurality of first shielding members are arranged at intervals along the circumference of the protective cover; There are a plurality of the second shielding members, and the plurality of the second shielding members are arranged at intervals along the circumference of the protective cover. The plurality of the first shielding members and the plurality of the second shielding members are alternately arranged along the circumference of the protective cover.

3. The end cover for a motor according to claim 1, characterized in that: The second shielding member is provided between two adjacent first shielding members, and both ends of the second shielding member extend obliquely toward the two adjacent first shielding members respectively; and / or, At least one end of the first shielding member extends obliquely toward the second shielding member adjacent thereto.

4. The end cover for a motor according to claim 3, characterized in that: The first shielding member includes a first main body and a first bent portion, wherein the first bent portion is provided at least at one end of the first main body along the circumference of the protective cover, one end of the first bent portion is connected to the first main body, and the other end of the first bent portion extends obliquely toward the second shielding member; The second shielding member includes a second main body portion and a second bent portion, wherein the second bent portion is provided at least at one end of the second main body portion along the circumference of the protective cover, one end of the second bent portion is connected to the second main body portion, and the other end of the second bent portion extends obliquely toward the first shielding member; The two adjacent first bending portions of two adjacent first shielding members are located between two ends of the same second shielding member.

5. The end cover for a motor according to claim 1, characterized in that: The protective cover further includes a barrier rib, which is arranged between the adjacent first bending portion and the second bending portion.

6. The end cover for a motor according to claim 1, characterized in that: The protective cover is formed with a plurality of openings, wherein two adjacent first shielding members form the openings, and some of the openings are opposite to the second shielding member along the radial direction of the protective cover; Part of the opening is formed as a mounting opening suitable for mounting the regulator.

7. A motor, characterized in that: include: An end cover, wherein the end cover is an end cover for a motor according to any one of claims 1 to 6; A regulator, the regulator being arranged at the mounting opening of the end cover and comprising a carbon brush; A motor shaft, one end of which extends into the protective cover of the end cover, and the carbon brush abuts against the motor shaft.

8. A vehicle, characterized in that: Comprising the motor according to claim 7.

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