Motor and vehicle

Abstract

The utility model relates to the technical field of automobile motors, and particularly discloses a motor and a vehicle, and the motor comprises a motor housing, a rotary transformer protection cover, and a damping block. The motor shell is provided with an accommodating cavity; the rotary transformer protecting cover is mounted on the motor shell and covers the accommodating cavity; the damping block is arranged on the motor shell and abuts against the inner wall face, facing the containing cavity, of the rotary transformer protection cover. The rotary transformer protecting cover can be limited through the damping block, the vibration energy of the rotary transformer protecting cover can be absorbed by utilizing the characteristic that the damping block can absorb energy, the vibration energy output from the rotary transformer protecting cover to the outside is reduced, the NVH performance is optimized, the structure is simple, the material consumption is low, and the design cost and the material cost can be reduced.

Description

Technical Field

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

[0002] In order to cope with the rising fuel prices and the volatile international oil situation, my country has vigorously promoted the use of new energy, and the new energy industry has developed rapidly. At the same time, it has also brought more technical challenges to the new energy industry, such as higher power density and more efficient electric drive systems.

[0003] At present, the electric drive system solves the NVH (Noise, Vibration, Harshness) problem of the resolver cover by changing the material of the resolver cover and optimizing the mode of the resolver cover, such as changing the stamped pure steel plate material to a stamped double-layer composite steel plate (adding a damping layer between the two layers of pure steel plates), or changing the stamped steel plate to an aluminum alloy material. By designing a complex structure, the mode of the resolver cover is improved and the NVH problem of the resolver cover is optimized.

[0004] However, most of the above solutions have the problem of high design cost and material cost. Utility Model Content

[0005] The present application provides a motor and a vehicle, wherein the motor can absorb the vibration energy of the resolver cover, reduce the vibration energy output from the resolver cover to the outside, optimize the NVH performance, and reduce the design cost and material cost.

[0006] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a motor and a vehicle, the motor comprising a motor housing, a resolver cover and a damping block; the motor housing is provided with a accommodating cavity; the resolver cover is installed on the motor housing and covers the accommodating cavity; the damping block is arranged on the motor housing, and the damping block presses against the resolver cover toward the inner wall surface of the accommodating cavity.

[0007] The motor housing is provided with a mounting column protruding into the accommodating cavity; the damping block is arranged on the mounting column, and the opposite ends of the damping block respectively abut against the inner wall surface and the mounting column.

[0008] Wherein, the motor also includes a first fixing member; the first fixing member fixes the damping block on the mounting column.

[0009] The mounting column is provided with a first fixing hole; the damping block is provided with a second fixing hole, and the first fixing member passes through the second fixing hole and the first fixing hole in sequence.

[0010] Wherein, two damping blocks are welded on the top of the mounting column opposite to each other and at intervals.

[0011] Among them, the motor also includes a second fixing piece; the motor housing is provided with a third fixing hole; the rotary transformer cover is provided with a fourth fixing hole, and the second fixing piece passes through the fourth fixing hole and the third fixing hole in sequence.

[0012] The damping block is fixed to the motor housing by means of snap fasteners, bonding, welding, or casting.

[0013] The motor further includes a resolver assembly, and the resolver assembly is disposed in the accommodating cavity.

[0014] The damping block includes a top end surface facing the rotary transformer cover, and the inner wall surface is in contact with the top end surface with an interference fit of 0.5-1.5 mm.

[0015] The present application also includes a second technical solution, which provides a vehicle including the above-mentioned motor.

[0016] The beneficial effects of the present application are as follows: Different from the prior art, the motor and vehicle provided by the present application include a motor housing, a resolver cover and a damping block; the motor housing is provided with a receiving cavity; the resolver cover is installed on the motor housing and covers the receiving cavity; the damping block is arranged on the motor housing, and the damping block abuts against the inner wall surface of the resolver cover facing the receiving cavity. The resolver cover can be limited by the damping block, and the energy-absorbing property of the damping block can also be used to absorb the vibration energy of the resolver cover, reduce the vibration energy output from the resolver cover to the outside, optimize the NVH performance, and the structure is simple, the material consumption is low, and the design cost and material cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 is a schematic structural diagram of a motor embodiment of the present application;

[0019] Figure 2 It is a structural schematic diagram of another embodiment of the motor of the present application. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] In the description of this application, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 mutual 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 this application can be understood according to specific circumstances.

[0024] Please refer to Figure 1 , Figure 1It is a schematic diagram of the structure of an embodiment of a motor provided by the present application. In one aspect of the present application, a motor 100 is provided, which includes a motor housing 11, a rotary transformer cover 12 and a damping block 13. The motor housing 11 is provided with a receiving cavity, which can receive components such as the stator, rotor, bearing, and shaft of the motor 100. The rotary transformer cover 12 is mounted on the motor housing 11 and covers the receiving cavity to protect the stator and other components of the motor 100 in the receiving cavity. The damping block 13 is disposed on the motor housing 11, and the damping block 13 abuts against the inner wall surface of the rotary transformer cover 12 facing the receiving cavity to absorb the vibration energy of the rotary transformer cover 12, reduce the vibration energy output of the rotary transformer cover 12, and optimize the NVH performance.

[0025] Specifically, the damping block 13 has the property of absorbing energy. The damping block 13 abuts against the inner wall surface of the resolver cover 12 to absorb the energy generated by the vibration of the resolver cover 12, thereby reducing the vibration energy output of the resolver cover 12 and optimizing the NVH performance. Furthermore, by arranging the damping block 13 on the motor housing 11 and abutting against the resolver cover 12, the structure can be simplified, material consumption can be reduced, and thus the design cost and material cost can be reduced.

[0026] When in use, the vibration energy of the resolver cover 12 comes from: on the one hand, the energy generated by the vibration of the motor 100 stator is transmitted to the motor housing 11 and then to the resolver cover 12; on the other hand, the energy generated by the rotation of the motor 100 rotor is transmitted to the motor housing 11 through the rotor shaft and the bearing and then to the resolver cover 12. In order to reduce the transmission of the vibration energy of the resolver cover 12 to the outside, the embodiment of the present application arranges the damping block 13 between the motor housing 11 and the resolver cover 12, and utilizes the energy-absorbing property of the damping block 13 to make the damping block 13 contact with the resolver cover 12 and absorb the vibration energy of the resolver cover 12, thereby optimizing the NVH performance, simplifying the structure, reducing material consumption, and reducing design costs and material costs.

[0027] In one embodiment of the present application, the motor housing 11 is provided with a mounting post 14 protruding into the accommodating cavity. The damping block 13 is disposed on the mounting post 14, and opposite ends of the damping block 13 abut against the inner wall surface and the mounting post 14 respectively.

[0028] Specifically, the mounting post 14 protrudes toward the inner wall surface of the resolver cover 12 so that the damping block 13 can abut against the inner wall surface. One end of the damping block 13 facing the resolver cover 12 abuts against the inner wall surface, and the other end abuts against the mounting post 14, which can limit the displacement of the resolver cover 12, reduce the vibration of the resolver cover 12, and absorb the vibration energy of the resolver cover 12. In a specific embodiment, the damping block 13 may include a rectangular parallelepiped structure, each damping block 13 corresponds to a mounting post 14, and the vibration energy of the resolver cover 12 is absorbed by abutting against the inner wall surface and the mounting post 14 by the two opposite sides of the rectangular parallelepiped. In another specific embodiment, the damping block 13 may also include a rectangular parallelepiped structure with an opening, the opening facing the inner wall surface, the surface where the opening is located abuts against the inner wall surface, and the surface away from the opening abuts against the mounting post 14, and the opening is provided to facilitate fixing the damping block 13 to the mounting post 14. In other specific embodiments, the damping block 13 also includes structures of other shapes to facilitate installation and fixation, simplify the structure, reduce material consumption, and reduce design costs and material costs.

[0029] In one embodiment of the present application, the motor 100 further includes a first fixing member 21 . The first fixing member 21 fixes the damping block 13 on the mounting column 14 .

[0030] Therefore, the resolver cover 12 can vibrate relative to the damping block 13, and the damping block 13 abutting against the inner wall surface of the resolver cover 12 can limit the relative movement of the resolver cover 12 and absorb the vibration energy of the resolver cover 12 by utilizing its energy absorbing property.

[0031] In a specific embodiment of the present application, the mounting column 14 is provided with a first fixing hole 141 , the damping block 13 is provided with a second fixing hole 131 , and the first fixing member 21 passes through the second fixing hole 131 and the first fixing hole 141 in sequence.

[0032] Specifically, the damping block 13 may include a rectangular parallelepiped structure with an opening, and a second fixing hole 131 is provided on one side that abuts against the mounting column 14, and the second fixing hole 131 is aligned with the first fixing hole 141, so that the first fixing member 21 can pass through the second fixing hole 131 and the first fixing hole 141 in sequence, thereby fixing the damping block 13 on the mounting column 14. In a specific embodiment, the first fixing member 21 may include a fixing structure such as a bolt, and the first fixing hole 141 and the second fixing hole 131 may include a screw hole, and the damping block 13 is fixed by screwing the bolt into the screw hole. In another specific embodiment, the first fixing member 21 may also include other fixing structures, and the first fixing hole 141 and the second fixing hole 131 may also be adjusted accordingly according to the structure of the first fixing member 21.

[0033] Please refer to Figure 2 , Figure 21 is a schematic diagram of the structure of another embodiment of the motor provided by the present application. In another embodiment of the present application, different from the above embodiment, two damping blocks 13 are welded on the top of the mounting column 14 opposite to each other and at intervals.

[0034] Specifically, two damping blocks 13 are respectively welded on opposite sides of the top of the mounting column 14, and the two damping blocks 13 are arranged at intervals to improve the absorption efficiency of the vibration energy of the resolver cover 12. Furthermore, the two damping blocks 13 have the same shape and size, so that the two damping blocks 13 can simultaneously abut against the resolver cover 12 to improve the absorption efficiency.

[0035] In another embodiment of the present application, the damping block 13 can be fastened to the motor housing 11 by bolts and welding, and can be fastened, bonded, or cast. The design can be adjusted according to the production process of the product, thereby simplifying the production process, simplifying the structure, reducing material consumption, and reducing design costs and production costs.

[0036] In one embodiment of the present application, the motor 100 further includes a second fixing member 22 , the motor housing 11 is provided with a third fixing hole 111 , the resolver cover 12 is provided with a fourth fixing hole 121 , and the second fixing member 22 passes through the fourth fixing hole 121 and the third fixing hole 111 in sequence.

[0037] Specifically, the second fixing member 22 passes through the fourth fixing hole 121 and the third fixing hole 111 in sequence, so that the resolver cover 12 is installed and fixed on the motor housing 11, thereby improving the stability of the motor 100, and also allowing the vibration energy of the stator of the motor 100 to be transmitted to the resolver cover 12 through the motor housing 11, so as to be absorbed by the damping block 13. In a specific embodiment, the second fixing member 22 may include a bolt, and the third fixing hole 111 and the fourth fixing hole 121 may include a screw hole, and the resolver cover 12 is fastened to the motor housing 11 by screwing the bolt into the screw hole. In another specific embodiment, the second fixing member 22 may also include other fixing structures, and the third fixing hole 111 and the fourth fixing hole 121 are adjusted accordingly according to the second fixing member 22.

[0038] In one embodiment of the present application, the motor 100 further includes a resolver assembly, and the resolver assembly is disposed in the accommodating cavity.

[0039] Specifically, the resolver assembly can measure the position, speed and rotation direction of the rotor of the motor 100, so as to effectively control the operation of the motor 100. After the resolver cover 12 covers the accommodating cavity, it can protect the resolver assembly and prevent dust, moisture and other impurities from entering the interior of the motor 100, thereby ensuring the normal operation of the resolver assembly and extending its service life. Furthermore, the resolver cover 12 can also provide mechanical protection to prevent external objects from damaging the resolver assembly.

[0040] In one embodiment of the present application, the damping block 13 includes a top end surface facing the resolver cover 12, and the inner wall surface is in contact with the top end surface with an interference fit of 0.5-1.5 mm.

[0041] Specifically, the damping block 13 abuts against the inner wall surface, that is, the top end surface fits the inner wall surface, so as to absorb vibration energy. Further, in a specific embodiment, there is an interference of 0.5-1.5mm between the inner wall surface and the top end surface, such as 0.5mm, 0.7mm, 1mm, 1.2mm, 1.5mm, etc., to improve the absorption efficiency. Since the interference required for different damping blocks 13 is different, in another specific embodiment, the interference can also be determined according to the NVH test results, which can be slightly less than 0.5mm or greater than 1.5mm.

[0042] On the other hand, the present application further provides a vehicle, which includes the above-mentioned motor 100. Specifically, since the vehicle includes the motor 100 described in the above embodiment, it also has the beneficial effects of the above-mentioned motor 100, which will not be repeated here.

[0043] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components are absolutely horizontal or vertical, but can be slightly tilted; the terms "parallel", "vertical" and the like do not mean that the components are absolutely parallel or vertical, but can form a certain angle deviation. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present application is usually placed when used, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does 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 cannot be understood as a limitation to the present application.

[0044] It is to be understood that the meaning of "plurality" herein is at least two, such as two, three, etc., unless there is a special limitation. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0045] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A motor, characterized in that: include: A motor housing (11), wherein the motor housing (11) is provided with a receiving cavity; A resolver protective cover (12), the resolver protective cover (12) being mounted on the motor housing (11) and covering the accommodating cavity; A damping block (13), wherein the damping block (13) is arranged on the motor housing (11), and the damping block (13) abuts against the inner wall surface of the rotary transformer protective cover (12) facing the accommodating cavity.

2. The motor according to claim 1, characterized in that The motor housing (11) is provided with a mounting column (14) protruding into the accommodating cavity; The damping block (13) is arranged on the mounting column (14), and opposite ends of the damping block (13) respectively abut against the inner wall surface and the mounting column (14).

3. The motor according to claim 2, characterized in that The motor further comprises a first fixing member (21); The first fixing member (21) fixes the damping block (13) on the mounting column (14).

4. The motor according to claim 3, characterized in that The mounting column (14) is provided with a first fixing hole (141); The damping block (13) is provided with a second fixing hole (131), and the first fixing member (21) passes through the second fixing hole (131) and the first fixing hole (141) in sequence.

5. The motor according to claim 2, characterized in that: The two damping blocks (13) are welded opposite to each other and at intervals on the top of the mounting column (14).

6. The motor according to any one of claims 1 to 5, characterized in that: The motor also includes a second fixing member (22); The motor housing (11) is provided with a third fixing hole (111); The rotary transformer cover (12) is provided with a fourth fixing hole (121), and the second fixing member (22) passes through the fourth fixing hole (121) and the third fixing hole (111) in sequence.

7. The motor according to claim 1, characterized in that The damping block (13) is mounted on the motor housing (11) by means of snap fasteners, bonding, welding, or casting.

8. The motor according to claim 1, characterized in that The motor further includes a resolver assembly, and the resolver assembly is disposed in the accommodating cavity.

9. The motor according to claim 1, characterized in that The damping block (13) comprises a top end surface facing the rotary transformer cover (12), and the inner wall surface is in contact with the top end surface with an interference fit of 0.5-1.5 mm.

10. A vehicle, characterized in that: The motor comprises the motor described in any one of claims 1 to 9.

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