Driving motor for power system of vehicle, power system of vehicle and vehicle

Abstract

The utility model provides a driving motor for a power system of a vehicle, the power system of the vehicle and the vehicle. The driving motor is used for a power system of a vehicle, the driving motor comprises an end cover and a shell, one of the end cover and the shell is provided with a containing part, the other one of the end cover and the shell is provided with a flange, and the flange extends into a containing space defined by the containing part and is connected with the inner wall of the containing part. The inner wall of the containing part and the flange form a storage space, the containing part is further provided with a through hole, and the through hole is communicated with the storage space and the outside. According to the invention, the influence of impurities possibly appearing in the connection process or the operation process of the motor end cover and the shell on the functions of peripheral parts is avoided in a high-cost-performance manner, and the normal operation of the motor is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of vehicle power, in particular to a drive motor of a power system for a vehicle, a power system of a vehicle and a vehicle. BACKGROUND

[0002] This section is intended to provide background information to assist with understanding various technologies described herein. As the title of this section implies, it is merely an overview of related technology that at least one inventor believes was or should have been part of the state of technology at the time the disclosure was made. Accordingly, it will be appreciated that information in this section should not be admitted to be prior art against the present disclosure merely on the basis of its inclusion between these sections.

[0003] The end cover of the vehicle motor will generate a lot of waste residues during the assembly process of the end cover and the shell. These waste residues may remain on the end cover. When the vehicle is running, due to the vibration of the vehicle, the waste residues may flow in the gap between the end cover and the shell, causing damage to the surrounding parts, resulting in loss of function, and even causing the vehicle motor to fail. UTILITY MODEL CONTENT

[0004] According to different aspects, the purpose of the present disclosure is to avoid the functional influence of impurities on the surrounding parts that may occur during the connection process or operation process of the motor end cover and the shell in a cost-effective manner, and to ensure the normal operation of the motor.

[0005] In addition, the purpose of the present disclosure is to solve or at least alleviate one or more problems existing in the prior art.

[0006] The present disclosure solves the above problems by providing a drive motor of a power system for a vehicle, a power system of a vehicle and a vehicle, in particular, according to an aspect of the present disclosure, there is provided:

[0007] A drive motor of a power system for a vehicle, wherein the drive motor comprises an end cover and a shell, one of the end cover and the shell is configured with a receiving portion, the other is configured with a flange, the flange extends into a receiving space formed by the receiving portion and is connected with the inner wall of the receiving portion, and the inner wall of the receiving portion and the flange form a storage space, the receiving portion is further configured with a through hole, the through hole communicates the storage space with the outside.

[0008] Optionally, according to an embodiment of the present disclosure, the storage space is used to store waste residues generated during the connection process of the end cover and the shell.

[0009] Optionally, according to an embodiment of the present disclosure, the flange is connected with the receiving portion in interference fit, and the waste residues are material residues generated by the end cover and / or the shell during the interference fit connection process; or

[0010] The flange is connected to the accommodating portion by glue joint, and the waste residue is glue residue; or

[0011] The flange is connected to the accommodating portion by welding, and the waste residue is solder residue.

[0012] Optionally, according to an embodiment of the present disclosure, an inner wall of the accommodating portion is formed with an inclined structure which is inclined outwardly and spaced apart from the outer peripheral surface and the end surface of the flange as viewed from the direction axially away from the other one.

[0013] Optionally, according to an embodiment of the present disclosure, the driving motor further comprises a seal, the one of the end cover and the housing comprises a main body, the accommodating portion extends from the main body toward the other one, and the seal is sealingly arranged between the end surface of the main body and the end surface of the flange.

[0014] Optionally, according to an embodiment of the present disclosure, the seal comprises a bracket and a rubber body configured on the bracket, the rubber body is formed by encapsulation, and the rubber body sealingly abuts between the end surface of the main body and the end surface of the flange.

[0015] Optionally, according to an embodiment of the present disclosure, the end cover and the housing are both made of metal or metal alloy.

[0016] Optionally, according to an embodiment of the present disclosure, an outer peripheral surface of the seal is spaced apart from the inner wall of the accommodating portion.

[0017] Optionally, according to an embodiment of the present disclosure, the through hole is arranged at a lower portion of the accommodating portion, so that the waste residue can flow through the through hole due to gravity.

[0018] According to another aspect of the present disclosure, the present disclosure provides a power system of a vehicle, wherein the power system comprises an electric drive axle and any one of the above driving motors, and an output end of the driving motor transmits power to the electric drive axle.

[0019] According to still another aspect of the present disclosure, the present disclosure provides a vehicle, wherein the vehicle comprises the above power system. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other features of the present disclosure will become apparent from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which,

[0021] Figure 1 A perspective view of a driving motor according to the present disclosure is shown;

[0022] Figure 2 An internal plan view of an end cover of a driving motor according to the present disclosure is shown;

[0023] Figure 3 a cross-sectional view of an end cover of a driving motor according to the present disclosure is shown;

[0024] Figure 4 an enlarged view of an end cover of a driving motor according to the present disclosure in a storage space region is shown;

[0025] Figure 5 an enlarged view of a connection region of an end cover and a housing of a driving motor according to the present disclosure is shown; and

[0026] Figure 6 an enlarged view of an end cover of a driving motor according to the present disclosure in a through-hole region is shown. DETAILED DESCRIPTION

[0027] It is easy to understand that, according to the technical solution of the present disclosure, a person skilled in the art can propose a plurality of structure modes and implementation modes that can be replaced with each other without changing the essential spirit of the present disclosure. Therefore, the following detailed description and the accompanying drawings are only exemplary descriptions of the technical solution of the present disclosure, and should not be regarded as the whole or as a limitation or restriction of the technical solution of the present disclosure.

[0028] In the present specification, the orientation terms such as up, down, left, right, front, back, front surface, back surface, top, bottom, etc. mentioned or possibly mentioned are defined with respect to the structure shown in the drawings, and they are relative concepts, so they can be changed accordingly according to different positions and different use states. Therefore, these or other orientation terms should not be interpreted as restrictive terms. In addition, the terms "first", "second", "third" or the like or similar expressions are only used for description and differentiation purposes, and cannot be understood as indicating or implying the relative importance of the corresponding members.

[0029] Reference Figures 1 to 6 wherein, Figure 1 a perspective view of a driving motor according to the present disclosure is shown; Figure 2 an internal plan view of an end cover of a driving motor according to the present disclosure is shown; Figure 3 a cross-sectional view of an end cover of a driving motor according to the present disclosure is shown; Figure 4 an enlarged view of an end cover of a driving motor according to the present disclosure in a storage space region is shown; Figure 5 an enlarged view of a connection region of an end cover and a housing of a driving motor according to the present disclosure is shown; and Figure 6 an enlarged view of an end cover of a driving motor according to the present disclosure in a through-hole region is shown.

[0030] The driving motor 100 is used in a power system of a vehicle, wherein the driving motor 100 comprises an end cover 1 and a housing 2, one of the end cover 1 and the housing 2 is configured with a receiving portion 11, and the other one, for example the housing 2, is configured with a flange 21, the flange 21 extends into a receiving space formed by the receiving portion 11 and is connected with the inner wall of the receiving portion 11, and the inner wall of the receiving portion 11 and the flange 21 form a storage space SP, and the receiving portion 11 is further configured with a through hole 112 which communicates the storage space SP with the outside.

[0031] According to the technical scheme, the end cover and the housing of the driving motor are connected by the connection and cooperation of the receiving portion and the flange, wherein the receiving portion and the flange can be configured as a rotary body, for example, a rotary body with a circular cross section. In this example, the implementation with the end cover having the receiving portion and the housing having the flange is explained, however, it should be understood that the technical schemes of the present disclosure can also be applicable to the cooperation mode of the housing having the receiving portion and the end cover having the flange. By designing the end cover 1 and the housing 2 as the cooperating receiving portion 11 and flange 21 structure, the effective utilization of the motor internal space is realized, and the overall structure of the driving motor is more compact. And by the cooperation of the receiving portion and the flange, a tight contact surface is formed, which effectively prevents the entry of external dust, moisture and other impurities into the motor interior, and improves the sealing performance of the motor.

[0032] The storage space can be used to store impurities that may be generated during the assembly process or during the operation of the motor, ensuring the normal operation of the motor and prolonging the service life of the motor. In addition, the receiving portion is also provided with a through hole which communicates with the storage space and the outside, so that the impurities stored in the storage space can be discharged to the outside through the through hole under certain conditions or working conditions, while maintaining the receiving capacity of the storage space, the possibility of waste affecting the function of motor parts is completely eliminated. The conditions or working conditions are, for example, the displacement of impurities in the storage space due to the natural driving and vibration of the vehicle during the driving process of the vehicle, and the impurities have the opportunity to flow from the storage space to the through hole and then be discharged to the outside. Even if the impurities do not automatically flow through the through hole and are discharged to the outside, the storage space can store the impurities for a long time, so that the impurities do not flow to other functional positions of the motor to produce harmful effects, and the storage space can also clean the impurities during the last maintenance without disassembling the entire motor, improving the convenience and efficiency of maintenance, reducing the workload and time of subsequent cleaning of impurities, and thus improving the manufacturing efficiency of the motor.

[0033] In some embodiments of the present disclosure, the storage space SP is used to store the waste generated in the process of connecting the end cover 1 and the shell 2. In the process of connection or assembly, waste may be generated, which may be caused by the material of the end cover or the shell itself, or by the connection process. Such waste may have an impact on the surrounding parts, and even affect the function of the entire drive motor. Therefore, the present disclosure designs a storage space which is arranged at the inner wall of the accommodating portion and the flange of the shell, that is, for the waste generated in the connection area of the accommodating portion and the flange, to avoid the waste from scattering inside the motor and to protect the surrounding parts and the drive motor. Feasibly, the storage space is arranged axially towards the direction of the end cover relative to the connection between the inner wall of the accommodating portion and the flange, so as to better store the waste generated in the connection process.

[0034] In addition, the present design increases the contact area and connection area between the end cover and the shell by extending the flange into the accommodating portion and connecting with the inner wall thereof, thereby improving the overall structural strength and stability. Finally, the storage space is formed based on the accommodating portion and the flange, so that the design of the storage space not only solves the problem of waste treatment, but also ingeniously utilizes the space inside the motor, improves the space utilization rate, and makes the overall design of the motor more compact and reasonable.

[0035] As to the specific connection mode of the accommodating portion and the flange, the present disclosure does not make special restrictions. As an example, the present disclosure lists the following three connection modes. Feasibly, the flange 21 is connected with the accommodating portion 11 in an interference fit, the waste is the material residue generated in the process of interference fit connection of the end cover 1 and / or the shell 2; or the flange 21 is connected with the accommodating portion 11 by glue joint, the waste is glue residue; or the flange 21 is connected with the accommodating portion 11 by welding, the waste is welding residue.

[0036] Therefore, the present disclosure can cope with the waste generated by various connection modes, and can cope with different sources of waste, thereby avoiding the adverse effects of waste on the performance of the motor. Taking interference fit as an example, the end cover and the shell need to be extruded together in the process of interference fit connection, so that the end cover and / or the shell may generate waste or burrs. The burrs have a great threat to the motor parts, so storing the burrs during the connection process can effectively prevent potential damage risks. In addition, the waste of glue joint connection is mainly glue residue for glue joint connection, and the waste of welding connection is mainly welding residue left by welding, which can be stored by the present solution.

[0037] The skilled in the art can flexibly select the connection mode of the end cover and the shell according to actual needs, for example, interference fit is suitable for tight connection between metal parts, glue joint is suitable for occasions requiring quick and simple connection and not high strength, and welding is suitable for occasions requiring high strength and permanent connection.

[0038] For the specific structure of the storage space, it is exemplary that the inner wall of the accommodating portion 11 is formed with an inclined structure 111, which is inclined outward and spaced apart from the outer peripheral surface and the end surface of the flange 21 as viewed from the direction of the axis away from the shell 2.

[0039] This design form can be well seen from, for example, Figure 5 It should be noted that the inclined structure should be understood in a broad sense, which has an inclined part, and not the whole structure needs to be inclined, that is, the inclined structure may, for example, include an inclined part and an axially extending flat part, etc. Specifically, as viewed from the direction of the axis toward the shell, the inclined part of the inclined structure, the connecting part of the accommodating portion and the flange, and the end surface of the accommodating portion are arranged in sequence, so that the inclined part and the whole storage space can more specifically cope with the process waste generated in the connection process.

[0040] According to the technical scheme, the inclined structure is inclined outward and spaced apart from the outer peripheral surface and the end surface of the flange, so that a larger storage space can be constructed, the storage capacity and range are improved to store the waste, which not only protects the connecting area between the flange and the accommodating portion, but also specifically protects the part of the flange end surface toward the end cover, especially the sealing member mentioned later. In other embodiments, the structure of the flange can also be designed, similarly, the flange is constructed with an inclined structure which is inclined axially inward as viewed from the direction of the axis toward the end cover, which can be understood as a chamfer, and also can achieve comparable technical effects.

[0041] It is feasible that the drive motor 100 further comprises a sealing member 3, the end cover 1 comprises a main body 12, the accommodating portion 11 extends from the main body 12 to the shell 2, and the sealing member 3 is sealingly arranged between the end surface of the main body 12 and the end surface of the flange 21.

[0042] It should be understood that the design of the sealing member can prevent the driving motor from being invaded by external rain, sewage, dust and other impurities or pollutants, ensure that the driving motor can still operate normally in harsh environments, and improve the durability and reliability of the motor. As known before, the sealing member is crucial to the operation of the driving motor, so the layout relationship of the sealing member, the accommodating portion, the main body and the flange is limited in this technical solution, so that the storage space formed by the accommodating portion and the flange can take into account the area where the sealing member is located, and the sealing member is thus specifically protected from waste residues. In particular, the inclined structure or the inclined portion thereof can be arranged at least partially covering the outer peripheral surface of the sealing member, so as to improve the effect of waste residue protection. Thus, it is also feasible that the outer peripheral surface of the sealing member 3 is spaced apart from the inner wall of the accommodating portion 11, thereby expanding the storage capacity of the storage space and providing better protection for the normal function of the sealing member. In addition, the appropriate spacing can form a small gap, which can allow the sealing member to have a certain expansion space under pressure or high temperature environment, so as to better fit between the end faces of the main body and the flange and maintain the stability of the sealing performance.

[0043] As for the specific structure of the sealing member, in some embodiments of the present disclosure, the sealing member 3 comprises a bracket 31 (e.g. a plastic bracket) and a rubber body 32 configured on the bracket 31, the rubber body 32 being formed by encapsulation, and the rubber body 32 sealingly abutting between the end face of the main body 12 and the end face of the flange 21.

[0044] As can be seen, the bracket provides a stable support structure for the rubber body, so that the entire sealing member can maintain stable shape and is not easy to deform or be damaged when subjected to pressure or vibration, thereby enhancing the durability of the sealing member and prolonging its service life. The encapsulation technology can tightly bond the rubber body to the bracket, forming a seamless connection and avoiding the joints or gaps that may exist in traditional sealing members, so that the sealing member is not easy to loosen or fall off during use, and the sealing performance of the sealing member is also improved, which can effectively prevent the invasion of pollutants. In addition, in terms of materials, the rubber body generally has excellent elasticity and resilience, and can be made of ethylene propylene diene rubber, fluororubber, etc. These materials can adapt to different shapes and sizes of arrangement spaces and provide reliable sealing effect. At the same time, the rubber body also has good temperature resistance, corrosion resistance and aging resistance, and can maintain stable sealing performance in harsh working environments.

[0045] For the material of the driving motor, exemplarily, the end cover 1 and the shell 2 are made of metal or metal alloy, which has high mechanical strength, wear resistance, heat resistance, thermal conductivity and processing performance, and has good shielding effect on electromagnetic waves. Specifically, the end cover and the shell can be made of iron, aluminum, magnesium alloy and the like. For example, in the case of interference fit connection, metal burrs may occur in metal materials, so that the design of the storage space and the through hole of the present disclosure can ensure that the above advantages of these materials are obtained while eliminating the influence of burrs on the operation of the motor.

[0046] In combination Figure 2 And Figure 6 It can also be seen that the through hole 112 is opened in the lower part of the containing part 11, so that the waste residue (including the waste residue generated in the upper area of the containing part) can flow through the through hole 112 due to gravity. This technical solution fully utilizes the effect of gravity to realize automatic discharge of waste residue, reduces energy consumption and cost, especially in the case of normal driving of the vehicle and thus vibration, the waste residue has the opportunity to flow through the through hole and be discharged to the outside in cooperation with the gravity factor. The position design of the through hole enables the waste residue to flow smoothly, reduces the risk of blockage, and ensures the continuity and efficiency of the residue discharge process. In addition, the through hole is opened by using the existing structure of the containing part, and also uses the vibration generated during normal driving of the vehicle, without additional or special residue discharge measures, the manufacturing cost is maintained low. Maintenance personnel can easily judge whether it is blocked by observing the through hole and its interior, and carry out necessary maintenance work. Those skilled in the art can flexibly adjust the shape, number, layout position, etc. of the through hole according to actual needs.

[0047] The present disclosure also relates to a power system of a vehicle, wherein the power system comprises an electric drive axle and any one of the driving motors 100 described above, and the output end of the driving motor 100 transmits power to the electric drive axle. Therefore, the power system of the present disclosure can inherit various embodiments of the driving motor and the corresponding technical effects, which will not be described here. However, it should be understood that the electric drive axle can more accurately control power distribution and wheel speed, thereby improving the driving stability of the vehicle, can adjust the power output in real time according to the road conditions, ensure the smooth driving of the vehicle, and has excellent environmental friendliness.

[0048] It should also be understood that the power system of the present disclosure can be installed on various vehicles, including cars, trucks, buses, hybrid vehicles, pure electric vehicles and the like. Therefore, the subject matter of the present disclosure also aims to protect various vehicles equipped with the power system of the present disclosure.

[0049] It should be understood that all the above preferred embodiments are exemplary rather than limiting, and various modifications or variations of the specific embodiments described above made by those skilled in the art under the concept of the present disclosure should be within the legal protection scope of the present disclosure.

Claims

1. A drive motor (100) for a powertrain of a vehicle, characterized in that, The driving motor (100) comprises an end cover (1) and a shell (2), one of the end cover (1) and the shell (2) is configured with a containing portion (11), the other is configured with a flange (21), the flange (21) extends into a containing space formed by the containing portion (11) and is connected with the inner wall of the containing portion (11), and the inner wall of the containing portion (11) and the flange (21) form a storage space (SP), the containing portion (11) is also configured with a through hole (112) which communicates the storage space (SP) with the outside.

2. The drive motor (100) according to claim 1, characterized in that The storage space (SP) is used for storing waste residues generated during the connection of the end cover (1) and the shell (2).

3. The drive motor (100) according to claim 2, characterized in that The flange (21) is connected with the containing portion (11) in interference fit, and the waste residues are material residues generated by the end cover (1) and / or the shell (2) during the interference fit connection; or The flange (21) is connected with the containing portion (11) by adhesive bonding, and the waste residues are glue residues; or The flange (21) is connected with the containing portion (11) by welding, and the waste residues are welding residues.

4. The drive motor (100) according to claim 1, characterized in that The inner wall of the containing portion (11) is formed with an inclined structure (111), which is inclined outwardly and spaced apart from the outer peripheral surface and end surface of the flange (21) as viewed from the axial direction away from the other.

5. The drive motor (100) according to claim 1, characterized in that The driving motor (100) further comprises a sealing member (3), the one of the end cover (1) and the shell (2) comprises a main body (12), the containing portion (11) extends from the main body (12) to the other, and the sealing member (3) is sealingly arranged between the end surface of the main body (12) and the end surface of the flange (21).

6. The drive motor (100) according to claim 5, characterized in that The sealing member (3) comprises a bracket (31) and a rubber body (32) configured on the bracket (31), the rubber body (32) is formed by encapsulation, and the rubber body (32) sealingly abuts between the end surface of the main body (12) and the end surface of the flange (21).

7. The drive motor (100) according to claim 1, characterized in that The end cover (1) and the shell (2) are both made of metal or metal alloy.

8. The drive motor (100) according to claim 5, characterized in that The outer peripheral surface of the sealing member (3) is spaced apart from the inner wall of the containing portion (11).

9. The drive motor (100) according to claim 2, characterized in that The through hole (112) is arranged at the lower part of the containing portion (11), so that the waste residues can flow through the through hole (112) due to gravity.

10. A powertrain system of a vehicle, characterized by, The power system comprises an electric drive axle and the driving motor (100) according to any one of claims 1 to 9, and the output end of the driving motor (100) transmits power to the electric drive axle.

11. A vehicle characterized by comprising: The vehicle comprises the power system according to claim 10.

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