Motor and vehicle

Abstract

The utility model discloses a motor and a vehicle, the motor comprises a box body and a stator assembly, one side of the box body is open, an accommodating cavity is formed in the box body, the stator assembly is arranged in the accommodating cavity, and the stator assembly pushes against one end of the box body along the axial direction of the motor. One end of the box body is provided with a containing cavity, the stator assembly and the containing cavity are in clearance fit in the radial direction of the motor, the end cover is arranged at the other end of the box body in a covering mode, and the end cover and the box body are suitable for clamping and fixing the stator assembly. According to the motor provided by the utility model, the stator assembly is in clearance fit when being assembled in the accommodating cavity of the box body, so that the stator assembly can be more easily arranged in the accommodating cavity, the insulation failure of the stator assembly is not easily caused, and meanwhile, the stator assembly is clamped and fixed by the end cover and the box body; therefore, the stator assembly does not need to be provided with a bolt hole, so that the stator assembly can be made smaller, and the miniaturization design of the motor is further realized.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a motor and a vehicle. Background Art

[0002] In the related art, the stator assembly of the motor is installed by using an interference fit, which is a shrink fit during assembly. However, the stator assembly may scrape against the housing to produce aluminum chips, which may cause insulation failure of the motor. Alternatively, the stator assembly is fixed to the housing by bolts, which may cause the stator assembly to be larger in size and thus the motor to be larger in size. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a motor and a vehicle, wherein the motor is clearance-fitted during assembly, so that scratching problems are not likely to occur, thereby causing insulation failure, and the stator assembly is fixed by clamping the end cover and the box body, so that less space is occupied, so that the motor can be miniaturized.

[0004] The motor according to the embodiment of the utility model includes: a casing, the casing is open toward one side and a receiving cavity is formed in the casing, a stator assembly is arranged in the receiving cavity, and the stator assembly is pushed against one end of the casing along the axial direction of the motor, the stator assembly and the receiving cavity are clearance-matched in the radial direction of the motor, and an end cover is arranged at the other end of the casing, and the end cover and the casing are suitable for clamping and fixing the stator assembly.

[0005] According to the motor of the embodiment of the utility model, the stator assembly is clearance-fitted when assembled in the accommodating cavity of the box body, so that the stator assembly can be more easily arranged in the accommodating cavity and is not prone to insulation failure of the stator assembly. At the same time, the end cover and the box body clamp and fix the stator assembly, so that the stator assembly does not need to have bolt holes, so that the stator assembly can be made smaller, thereby realizing the miniaturized design of the motor.

[0006] According to some embodiments of the motor of the present invention, the box body includes: a cylinder and a cover plate, the inner surface of the cover plate is formed as a first limiting surface, or a step portion is provided on the inner wall of the cylinder, and the step portion defines the first limiting surface to push against the stator assembly.

[0007] According to the motor of some embodiments of the present utility model, a second limiting surface is formed on the end cover, and the second limiting surface and the first limiting surface are respectively pushed against two ends of the stator assembly.

[0008] According to the motor of some embodiments of the present utility model, the housing and the end cover define an oil storage cavity, and the oil storage cavity is suitable for storing lubricating medium.

[0009] According to the motor of some embodiments of the present utility model, the housing has at least one oil groove, and the oil groove is connected to the oil storage cavity.

[0010] According to the motor of some embodiments of the present utility model, the oil groove defines an oil path, and the oil path is suitable for guiding the lubricating medium in the oil storage cavity to the stator winding package.

[0011] According to some embodiments of the present invention, the motor further includes a rotor assembly, wherein the rotor assembly is inserted into the stator assembly, and two ends of the rotor assembly pass through the housing and the end cover.

[0012] According to the motor of some embodiments of the present invention, the housing is further formed with a first positioning surface, and the end cover is further formed with a second positioning surface, and the first positioning surface is directly opposite to the second positioning surface and both are positioned and matched with the rotor assembly.

[0013] According to the motor of some embodiments of the present invention, the rotor assembly is provided with a first bearing and a second bearing, the first bearing is sleeved on the stator assembly and abuts against the first positioning surface, and the second bearing is sleeved on the stator assembly and abuts against the second positioning surface.

[0014] The utility model also provides a vehicle.

[0015] The vehicle according to the embodiment of the utility model comprises the motor described in any one of the above embodiments.

[0016] The advantages of the vehicle and the above-mentioned motor compared to the prior art are the same and will not be elaborated here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 Schematic diagram of a motor according to some embodiments of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the box in ;

[0021] Figure 3 for Figure 1 Schematic diagram of the oil circuit of the box;

[0022] Figure 4Schematic diagram of a vehicle according to some embodiments of the present invention.

[0023] Reference numerals:

[0024] Vehicles 1000;

[0025] Motor 100;

[0026] Box body 10, accommodating cavity 11, cylinder body 12, cover plate 13, first limiting surface 14, step portion 15;

[0027] First positioning surface 16, oil groove 17, oil passage 18;

[0028] End cover 20, second limiting surface 21, second positioning surface 22;

[0029] Stator assembly 31 , rotor assembly 32 , first bearing 33 , second bearing 34 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0032] Reference below Figure 1-Figure 3 A motor 100 according to an embodiment of the present invention is described.

[0033] like Figure 1-Figure 3 As shown, the motor 100 according to the embodiment of the utility model includes: a housing 10 , a stator assembly 31 and an end cover 20 .

[0034] The housing 10 is open toward one side and is formed with a receiving cavity 11. The stator assembly 31 is disposed in the receiving cavity 11, and the stator assembly 31 is pushed against one end of the housing 10 along the axial direction of the motor 100. The stator assembly 31 and the receiving cavity 11 are clearance-matched in the radial direction of the motor 100. The end cover 20 is disposed on the other end of the housing 10, and the end cover 20 and the housing 10 are suitable for clamping and fixing the stator assembly 31.

[0035] It should be noted that after the housing 10 forms the accommodating cavity 11, the stator assembly 31 can be arranged in the accommodating cavity 11, and the stator assembly 31 is pushed into the housing 10 along the axial direction of the motor 100 during assembly, and when the stator assembly 31 is located in the accommodating cavity 11, the stator assembly 31 and the accommodating cavity 11 are clearance-matched, so that the stator assembly 31 can be more easily arranged in the accommodating cavity 11, and when the stator assembly 31 is assembled, the stator assembly 31 will abut against the inner wall of the housing 10, and when the end cover 20 is covered on the housing 10, the end cover 20 will also abut against the other side of the stator assembly 31, so that the end cover 20 and the housing 10 can clamp the stator assembly 31 so that it is not easy to shake, so that the stator assembly 31 is easier to assemble.

[0036] Furthermore, the stator assembly 31 is clearance-fitted with the accommodating cavity 11, so that the stator assembly 31 will not rub against the inner wall of the accommodating cavity 11 during assembly, thereby avoiding insulation failure. At the same time, the stator assembly 31 is clamped and fixed by the end cover 20 and the box body 10, so that the stator assembly 31 does not need to have bolt holes, so that the stator assembly 31 can be made smaller, thereby realizing the miniaturized design of the motor 100.

[0037] Therefore, the stator assembly 31 is clearance-fitted when assembled in the accommodating cavity 11 of the housing 10, which makes the assembly of the stator assembly 31 easier. At the same time, after the end cover 20 is covered, the end cover 20 and the housing 10 will clamp and fix the stator assembly 31, so that the stator assembly 31 located in the accommodating cavity 11 will not shake and affect the performance of the motor 100, and the miniaturized design of the motor 100 can be achieved.

[0038] According to the motor 100 of the embodiment of the utility model, the stator assembly 31 is clearance-fitted when assembled in the accommodating cavity 11 of the housing 10, so that the stator assembly 31 can be more easily arranged in the accommodating cavity 11, and it is not easy to cause insulation failure of the stator assembly 31. At the same time, the end cover 20 and the housing 10 will clamp and fix the stator assembly 31, so that the stator assembly 31 does not need to have bolt holes, so that the stator assembly 31 can be made smaller, thereby realizing the miniaturized design of the motor 100.

[0039] In some embodiments, Figure 1-Figure 3As shown, the box body 10 includes: a cylinder 12 and a cover plate 13 , the inner surface of the cover plate 13 is formed as a first limiting surface 14 , or a step portion 15 is provided on the inner wall of the cylinder 12 , and the step portion 15 defines the first limiting surface 14 to push against the stator assembly 31 .

[0040] It should be noted that the first limit surface 14 formed on the cover plate 13 will abut against the stator assembly 31 when the stator assembly 31 is assembled, so that the stator assembly 31 can be clamped after the end cover 20 is covered on the box body 10, so that the stator assembly 31 can be easier to fix, or a step portion 15 is provided on the inner wall of the cylinder 12, and the first limit surface 14 formed by the step portion 15 faces the stator assembly 31, so that when the stator assembly 31 is assembled, the first limit surface 14 will abut against the stator assembly 31, so that the end cover 20 and the box body 10 can clamp the stator assembly 31 more easily.

[0041] Therefore, the first limiting surface 14 formed in the cover plate 13 or the step portion 15 provided on the cylinder 12 and the first limiting surface 14 formed by the step portion 15 will abut against the side surface of the stator assembly 31 after the stator assembly 31 is assembled, thereby making it easier for the end cover 20 and the box body 10 to clamp the stator assembly 31.

[0042] In some embodiments, Figure 1-Figure 3 As shown, a second limiting surface 21 is formed on the end cover 20 , and the second limiting surface 21 and the first limiting surface 14 are respectively pushed against two ends of the stator assembly 31 .

[0043] It should be noted that the second limiting surface 21 formed on the end cover 20 will abut against the stator assembly 31 when the end cover 20 is covered on the box body 10, so that when the end cover 20 and the box clamp and fix the stator assembly 31, the first limiting surface 14 and the second limiting surface 21 are pushed against the two ends of the stator assembly 31, thereby fixing the stator assembly 31 so that it will not shake in the accommodating cavity 11, thereby not affecting the performance of the motor 100.

[0044] Therefore, a second limiting surface 21 is formed on the end cover 20, and when the end cover 20 is covered on the box body 10, the second limiting surface 21 and the first limiting surface 14 will respectively push against the two ends of the stator assembly 31 to fix the stator assembly 31, so that the stator assembly 31 will not shake when the motor 100 is running, thereby affecting the use of the motor 100.

[0045] In some embodiments, the housing 10 and the end cover 20 define an oil storage chamber, and the oil storage chamber is suitable for storing lubricating medium.

[0046] It should be noted that the oil storage cavity defined by the housing 10 and the end cover 20 can store lubricating medium, so that the motor 100 can be lubricated by the lubricating medium during operation, which prolongs the service life of the motor 100 and makes the operation of the motor 100 more stable.

[0047] Thus, the oil storage cavity defined by the housing 10 and the end cover 20 can store lubricating medium, so that the motor 100 can be lubricated during operation, which prolongs the service life of the motor 100 and makes the operation of the motor 100 more stable.

[0048] In some embodiments, Figure 1-Figure 3 As shown, the housing 10 has at least one oil groove 17, and the oil groove 17 is communicated with the oil storage chamber.

[0049] It should be noted that the oil groove 17 is connected to the oil storage chamber so that the lubricating medium in the oil storage chamber can enter the accommodating chamber 11 through the oil groove 17 to lubricate the inside of the motor 100, thereby making the motor 100 more stable during operation.

[0050] Furthermore, a plurality of oil grooves 17 may be provided in the housing 10 , so that the lubricating medium can enter the accommodating cavity 11 more efficiently, thereby enabling the motor 100 to obtain a better lubrication effect.

[0051] Thus, the oil groove 17 of the housing 10 can connect the accommodating chamber 11 and the oil storage chamber so that the lubricating medium can enter the accommodating chamber 11 from the oil storage chamber, thereby lubricating the inside of the motor 100 .

[0052] In some embodiments, Figure 1-Figure 3 As shown, the oil groove 17 defines an oil passage 18, and the oil passage 18 is suitable for guiding the lubricating medium in the oil storage cavity to the stator winding package.

[0053] It should be noted that the oil groove 17 will limit the oil path 18, so that the lubricating medium in the oil storage chamber can be guided to the stator winding package through the oil path 18 to cool the stator winding package, thereby ensuring the normal operation of the motor 100. At the same time, the oil path 18 is limited by the oil groove 17, which can make the internal structure of the motor 100 simpler and save production costs.

[0054] Furthermore, in this embodiment, the oil path 18 defined by the oil groove 17 is distributed on both sides of the stator assembly 31 , so that the windings of the stator assembly 31 can be better cooled, thereby ensuring the normal operation of the motor 100 .

[0055] Therefore, the oil path 18 defined by the oil groove 17 can guide the lubricating medium in the oil storage chamber to the stator winding, so as to cool the winding of the stator assembly 31, thereby ensuring the normal operation of the motor 100. At the same time, the form of defining the oil path 18 by the oil groove 17 can make the internal structure of the motor 100 simpler, thereby saving production costs.

[0056] In some embodiments, Figure 1-Figure 3 As shown, it also includes a rotor assembly 32 , which is disposed through the stator assembly 31 , and both ends of the rotor assembly 32 pass through the housing 10 and the end cover 20 .

[0057] It should be noted that while the rotor assembly 32 is inserted into the stator assembly 31 , both ends of the rotor assembly 32 also penetrate the housing 10 and the end cover 20 , so that the rotor assembly 32 can be better connected to other components.

[0058] Therefore, when the rotor assembly 32 is inserted into the stator assembly 31, it can cooperate with the stator assembly 31. At the same time, both ends of the rotor assembly 32 will pass through the box body 10 and the end cover 20, thus ensuring that the motor 100 can be connected to other components.

[0059] In some embodiments, Figure 1-Figure 3 As shown, the housing 10 is further formed with a first positioning surface 16 , and the end cover 20 is further formed with a second positioning surface 22 . The first positioning surface 16 and the second positioning surface 22 are directly opposite to each other and are both positioned and matched with the rotor assembly 32 .

[0060] It should be noted that the first positioning surface 16 formed by the box body 10 and the second positioning surface 22 formed by the end cover 20 will be positioned and matched with the rotor assembly 32, so that it is easier for the rotor assembly 32 to be inserted into the stator assembly 31, that is, it is easier for the rotor assembly 32 to be assembled in the box body 10.

[0061] Thus, the first positioning surface 16 and the second positioning surface 22 can position the rotor assembly 32 so that the rotor assembly 32 can be better assembled in the housing 10 , thereby making the overall assembly of the motor 100 easier.

[0062] In some embodiments, Figure 1-Figure 3 As shown, a first bearing 33 and a second bearing 34 are provided on the rotor assembly 32 . The first bearing 33 is sleeved on the stator assembly 31 and abuts against the first positioning surface 16 . The second bearing 34 is sleeved on the stator assembly 31 and abuts against the second positioning surface 22 .

[0063] It should be noted that the first bearing 33 and the second bearing 34 are sleeved on the rotor assembly 32 and are respectively located at the two ends of the rotor assembly 32. In this way, after the rotor assembly 32 is assembled, the first bearing 33 will abut against the first positioning surface 16, and the second bearing 34 will abut against the second positioning surface 22. In this way, the rotor assembly 32 can be fixed in the box 10 without affecting the use of the rotor assembly 32, thereby not affecting the operation of the motor 100.

[0064] Therefore, the rotor assembly 32 is provided with a first bearing 33 and a second bearing 34. When the rotor assembly 32 is assembled, the first bearing 33 will abut against the first positioning surface 16, and the second bearing 34 will abut against the second positioning surface 22. This ensures that the rotor assembly 32 can be fixed in the housing 10 and will not affect the operation of the motor 100.

[0065] The utility model also provides a vehicle 1000 .

[0066] like Figure 4 As shown, a vehicle 1000 according to an embodiment of the present utility model comprises a motor 100 according to any one of the above embodiments.

[0067] According to the vehicle 1000 of the embodiment of the utility model, in the motor 100 thereon, the stator assembly 31 is clearance-fitted when assembled in the accommodating cavity 11 of the housing 10, so that the stator assembly 31 can be more easily arranged in the accommodating cavity 11, and it is not easy to cause insulation failure of the stator assembly 31. At the same time, the end cover 20 and the housing 10 will clamp and fix the stator assembly 31, so that the stator assembly 31 does not need to have bolt holes, so that the stator assembly 31 can be made smaller, thereby realizing the miniaturized design of the motor 100.

[0068] 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 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor (100), characterized in that: include: A box body (10), the box body (10) is open toward one side and the box body (10) is formed with a receiving cavity (11); A stator assembly (31), the stator assembly (31) being arranged in the accommodating cavity (11), and the stator assembly (31) being pushed against one end of the housing (10) along the axial direction of the motor (100), and the stator assembly (31) and the accommodating cavity (11) being clearance-matched in the radial direction of the motor (100); An end cover (20) is disposed on the other end of the box body (10), and the end cover (20) and the box body (10) are suitable for clamping and fixing the stator assembly (31).

2. The electric machine (100) according to claim 1, characterized in that The box body (10) comprises: a cylinder (12) and a cover plate (13); the inner surface of the cover plate (13) is formed as a first limiting surface (14); or a step portion (15) is provided on the inner wall of the cylinder (12); the step portion (15) defines the first limiting surface (14) to push against the stator assembly (31).

3. The electric machine (100) according to claim 2, characterized in that: A second limiting surface (21) is formed on the end cover (20), and the second limiting surface (21) and the first limiting surface (14) are respectively pressed against two ends of the stator assembly (31).

4. The electric machine (100) according to claim 1, characterized in that The box body (10) and the end cover (20) define an oil storage cavity, and the oil storage cavity is suitable for storing lubricating medium.

5. The electric machine (100) according to claim 4, characterized in that: The box body (10) has at least one oil groove (17), and the oil groove (17) is communicated with the oil storage chamber.

6. The electric machine (100) according to claim 5, characterized in that The oil groove (17) defines an oil passage (18), and the oil passage (18) is suitable for guiding the lubricating medium in the oil storage cavity to the stator winding package.

7. The electric machine (100) according to claim 1, characterized in that It also includes a rotor assembly (32), wherein the rotor assembly (32) is inserted into the stator assembly (31), and two ends of the rotor assembly (32) pass through the box body (10) and the end cover (20).

8. The electric machine (100) according to claim 7, characterized in that The housing (10) is further formed with a first positioning surface (16), and the end cover (20) is further formed with a second positioning surface (22); the first positioning surface (16) and the second positioning surface (22) are directly opposite to each other and are both positioned and matched with the rotor assembly (32).

9. The electric machine (100) according to claim 8, characterized in that: The rotor assembly (32) is provided with a first bearing (33) and a second bearing (34); the first bearing (33) is sleeved on the stator assembly (31) and abuts against the first positioning surface (16); the second bearing (34) is sleeved on the stator assembly (31) and abuts against the second positioning surface (22).

10. A vehicle (1000), characterized in that: The electric machine (100) comprises any one of claims 1 to 9.

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