Motor assembly and vehicle having the same

Abstract

The utility model provides a kind of motor assembly and vehicle with it.The motor assembly includes drive motor and brake component, drive motor includes motor casing and motor shaft, the first end of motor shaft extends to the first end outside motor casing, to form the drive end of drive motor, the second end of motor shaft extends to the second end outside motor casing, to form the brake end of drive motor, brake component is connected with motor casing, brake component has the brake state of brake brake end, and, the release state of release brake end, wherein, one end of motor casing is equipped with water inlet and water outlet, water inlet, water outlet are communicated with the inside cooling flow passage of motor casing and are set.The water inlet and water outlet of the scheme and brake component are integrated layout in the end of motor casing, reduce the occupied space of motor assembly in radial direction, further improve the installation flexibility of motor assembly, solve the problem of poor installation flexibility caused by the large volume of motor in relevant technology.

Description

Technical Field

[0001] This utility model relates to the field of motor design technology, and more specifically, to a motor assembly and a vehicle having the same. Background Technology

[0002] In related technologies, the drive motors used in vehicles typically adopt a single-shaft extension design, meaning that the motor shaft extends only from one end of the motor housing. Most of the motor components are concentrated inside the motor housing, which is usually a relatively regular shape, resulting in a large final motor housing volume and making installation inconvenient. At the same time, the inlet and outlet are often designed on the side of the motor housing, requiring space to be reserved in the radial direction of the motor when water is entering or leaving, further affecting the installation flexibility of the motor. Utility Model Content

[0003] The main objective of this invention is to provide a motor assembly and a vehicle having the same, in order to solve the problem of poor installation flexibility caused by the large size of the motor in related technologies.

[0004] To achieve the above objectives, according to one aspect of the present invention, a motor assembly is provided, including a drive motor and a braking assembly. The drive motor includes a motor housing and a motor shaft. A first end of the motor shaft extends beyond the first end of the motor housing to form a drive end of the drive motor. A second end of the motor shaft extends beyond the second end of the motor housing to form a braking end of the drive motor. The braking assembly is connected to the motor housing and has a braking state of braking the braking end and a releasing state of releasing the braking end. A water inlet and a water outlet are provided at one end of the motor housing, and the water inlet and the water outlet are connected to the internal cooling channel of the motor housing.

[0005] Furthermore, the drive motor also includes a junction box, which is located at the end of the motor housing and connected to the motor housing.

[0006] Furthermore, the junction box, water inlet, and water outlet are all located on the side where the brake is located.

[0007] Furthermore, along the radial direction of the motor shaft, the junction box is positioned opposite the water inlet and the water outlet.

[0008] Furthermore, a brake assembly mounting portion is provided on the end face of the motor housing. The brake assembly mounting portion protrudes from the end face of the motor housing along the axial direction of the motor housing and is used to install the brake assembly.

[0009] Furthermore, a first flange is provided at the first end of the motor housing, and a second flange is provided at the second end of the motor housing. A brake assembly mounting part is provided on the end face of the second flange opposite to the first flange. The brake assembly mounting part is integrally formed with the second flange and is used to install the brake assembly.

[0010] Furthermore, the first flange has an axial connection hole, and the outer circumferential surface of the second flange forms the assembly surface of the second flange. Both the assembly surface and the axial connection hole are used for assembly and connection with external components.

[0011] Furthermore, the braking assembly includes a caliper and a brake disc. The caliper is mounted on the second end of the motor housing, and the brake disc is fitted onto the braking end. When the caliper and the brake disc are connected, the braking assembly is in a braking state, and both the brake disc and the braking end are fixed. When the caliper and the brake disc are separated, the braking assembly is in a released state, and the brake disc can rotate with the braking end.

[0012] Furthermore, there are two calipers, which are arranged opposite each other along the radial direction of the motor shaft.

[0013] According to another aspect of the present invention, a vehicle is provided, including an electric motor assembly, the electric motor assembly being the aforementioned electric motor assembly.

[0014] By applying the technical solution of this utility model, the motor shaft can be connected to the output component and the braking component at both ends respectively. The braking component can directly brake the drive motor by contacting the braking end of the motor shaft, thus integrating an external braking function into the final motor assembly. The layout and installation method of the braking component can be adjusted according to the installation environment of the motor assembly, making the motor assembly more flexible in installation. At the same time, water inlet and outlet are provided at the end of the motor housing, which can realize axial water inlet and outlet of the motor housing. The layout of the water inlet and outlet on the circumference of the motor housing is eliminated. The water inlet and outlet and the braking component are integrated at the end of the motor housing, reducing the radial space occupied by the motor assembly, improving space utilization efficiency, and further improving the installation flexibility of the motor assembly. This solves the problem of poor installation flexibility caused by the large size of the motor in related technologies, making the motor assembly more suitable for installation environments with large installation space constraints. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of a first embodiment of the motor assembly according to the present invention is shown;

[0017] Figure 2 A schematic diagram of a second embodiment of the motor assembly according to the present invention is shown;

[0018] Figure 3 A schematic diagram of a third embodiment of the motor assembly according to the present invention is shown;

[0019] Figure 4 A schematic diagram of the structure of a fourth embodiment of the motor assembly according to the present invention is shown;

[0020] Figure 5 A structural schematic diagram of a fifth embodiment of the motor assembly according to the present invention is shown;

[0021] Figure 6 A schematic diagram of the sixth embodiment of the motor assembly according to the present invention is shown;

[0022] Figure 7 A structural schematic diagram of a seventh embodiment of the motor assembly according to the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. Drive motor;

[0025] 11. Motor housing;

[0026] 111. Water inlet;

[0027] 112. Water outlet;

[0028] 12. Motor shaft;

[0029] 121. Driver end;

[0030] 122. Braking end;

[0031] 131. First flange;

[0032] 1310. Axial connection hole;

[0033] 132. Second flange;

[0034] 1320. Assembly surface;

[0035] 14. Junction box;

[0036] 15. Brake assembly mounting section;

[0037] 2. Braking components;

[0038] 21. Calipers;

[0039] 211. Brake block;

[0040] 22. Brake disc;

[0041] 23. Connecting sleeve. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0046] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, a motor assembly is provided.

[0047] Specifically, the motor assembly includes a drive motor 1 and a braking assembly 2. The drive motor 1 includes a motor housing 11 and a motor shaft 12. The first end of the motor shaft 12 extends to the outside of the first end of the motor housing 11 to form a drive end 121 of the drive motor 1. The second end of the motor shaft 12 extends to the outside of the second end of the motor housing 11 to form a braking end 122 of the drive motor 1. The braking assembly 2 is connected to the motor housing 11. The braking assembly 2 has a braking state of braking the braking end 122 and a releasing state of releasing the braking end 122. One end of the motor housing 11 is provided with a water inlet 111 and a water outlet 112. The water inlet 111 and the water outlet 112 are connected to the internal cooling channel of the motor housing 11.

[0048] By applying the technical solution of this embodiment, the motor shaft 12 can be connected to the output component and the braking component 2 at both ends respectively. The braking component 2 can directly brake the drive motor 1 by contacting the braking end of the motor shaft 12, thereby integrating the external braking function into the final motor assembly. The layout and installation method of the braking component 2 can be adjusted according to the installation environment of the motor assembly, making the motor assembly more flexible in installation. At the same time, the inlet 111 and outlet 112 are provided at the end of the motor housing 11, which can realize the axial water inlet and outlet of the motor housing 11. The layout of the inlet and outlet on the circumferential surface of the motor housing 11 is eliminated. The inlet 111 and outlet 112 and the braking component 2 are both integrated into the end of the motor housing 11, reducing the radial space occupied by the motor assembly, improving space utilization efficiency, and further improving the installation flexibility of the motor assembly. This solves the problem of poor installation flexibility caused by the large size of the motor in related technologies, making the motor assembly more suitable for installation environments with large installation space restrictions.

[0049] It should be understood that the motor housing 11 of the drive motor 1 may contain a brake. This brake is located inside the motor housing 11 and is used to brake the drive motor 1 during normal operation. In this embodiment, the braking component 2 can work together with the brake inside the motor housing 11 to brake the motor, thereby providing redundant braking function for the drive motor 1 and improving the stability and safety of motor operation. Alternatively, the original brake can be eliminated, and only the braking component 2 in this embodiment can be retained, thereby reducing the number of components inside the motor housing 11, reducing the volume of the motor housing 11, and improving the assembly flexibility of the motor assembly.

[0050] In this embodiment, the internal cooling channel of the motor housing 11 can be a channel spirally arranged along the axial direction of the motor housing 11.

[0051] Furthermore, the drive motor 1 also includes a junction box 14, which is located at the end of the motor housing 11 and connected to it. The axial layout of the junction box 14 reduces the longitudinal space requirement of the motor assembly, making the overall motor design more compact, reducing external interference, and improving the stability of signal transmission. In addition, the junction box 14 is directly connected to the motor housing, facilitating the access and management of high-voltage cables, simplifying the wiring of the electrical system, and improving the installation efficiency and reliability of the motor.

[0052] In order not to increase the radial dimension of the drive motor 1, the junction box 14 is usually not set beyond the edge of the motor housing 11. In other embodiments, a waterproof sealing structure can be added to the junction box 14 to ensure its protective performance in harsh environments and solve the problem of electrical interfaces being susceptible to corrosion.

[0053] Specifically, the junction box 14, water inlet 111, and water outlet 112 are all located on the side where the brake end 122 is located. In this embodiment, the key interfaces of the electrical and cooling systems are uniformly located on one side of the motor, which simplifies the complexity of system integration, reduces potential failure points, and the centralized layout of the key parts of the motor can improve the assembly efficiency of the motor, reduce installation errors caused by the dispersed interface positions, and also help with the overall layout planning of the vehicle, which is beneficial for subsequent maintenance and inspection of the motor.

[0054] In other embodiments, the convenience and safety of on-site operations can be further improved by optimizing the interface design, such as by using quick-connect connectors.

[0055] Preferably, the junction box 14 is positioned opposite the water inlet 111 and the water outlet 112 along the radial direction of the motor shaft 12. This arrangement helps to balance the weight on both sides of the motor, avoiding installation or operational problems caused by one side being too heavy. This not only enhances the structural stability of the motor, but also ensures that the relative positions of the junction box and the water inlet and outlet meet the requirements for independent operation of the electrical and cooling systems, thus ensuring efficient coordination between the electrical and cooling systems and improving the overall performance of the motor.

[0056] In other embodiments, the specific size and shape of the junction box and inlet / outlet can be adjusted to adapt to the installation requirements of different vehicle models, thus solving compatibility issues in specific application scenarios.

[0057] Furthermore, a brake assembly mounting portion 15 is provided on the end face of the motor housing 11. The brake assembly mounting portion 15 protrudes from the end face of the motor housing 11 along the axial direction of the motor housing 11 and is used to mount the brake assembly 2. The protruding arrangement of the brake assembly mounting portion 15 allows for a distance between the brake assembly 2 and the main body of the motor housing 11, which is beneficial for heat dissipation of the motor housing 11. At the same time, it can prevent interference between the brake assembly 2 and the motor housing 11.

[0058] Specifically, a first flange 131 is provided at the first end of the motor housing 11, and a second flange 132 is provided at the second end of the motor housing 11. A brake assembly mounting part 15 is provided on the end face of the second flange 132 that is away from the first flange 131. The brake assembly mounting part 15 is integrally formed with the second flange 132, and the brake assembly mounting part 15 is used to install the brake assembly 2.

[0059] In this embodiment, the brake assembly mounting part 15 and the second flange 132 are integrally formed, which can reduce manufacturing costs, simplify manufacturing processes, and avoid the problem of friction damage to the motor housing 11 that may be caused by directly connecting the brake assembly 2 to the motor housing 11.

[0060] Preferably, the first flange 131 has an axial connection hole 1310, and the outer peripheral surface of the second flange 132 forms the assembly surface 1320 of the second flange 132. Both the assembly surface 1320 and the axial connection hole 1310 are used for assembly and connection with external components.

[0061] In this embodiment, the axial connection hole 1310 facilitates the assembly and connection of the first flange 131 with external components via bolts or other fasteners, and after connection, it achieves axial positioning of the motor housing 11. The outer circumferential surface of the second flange 132 forms the assembly surface 1320 of the second flange 132. That is, during assembly, external components are connected to the second flange 132 in the radial direction. The second flange 132 experiences less axial force and has a certain degree of axial freedom of movement. This provides a certain buffer space in the axial direction when the motor housing 11 expands and contracts due to ambient temperature changes, reducing the damage caused by the restriction and compression at both ends of the motor housing 11 when the ambient temperature changes, and extending the service life of the drive motor 1.

[0062] It should be noted that the assembly surface 1320 can be a complete curved surface, or it can be provided with one or more straight surfaces to adapt to the installation requirements of external components.

[0063] In one exemplary embodiment of this application, a plurality of axial connection holes 1310 are provided on the first flange 131, and the plurality of axial connection holes 1310 are evenly spaced along the circumference of the first flange 131.

[0064] In an exemplary embodiment of this application, the second flange 132 is provided with a cooling channel. One end of the cooling channel is connected to the water inlet 111 and the water outlet 112 of the motor housing 11. The other end of the cooling channel is a water inlet and a water outlet formed on the end face of the second flange 132 opposite to the first flange 131. Preferably, the cooling channel is an axial flow hole, and there are two axial flow holes. One axial flow hole is correspondingly provided with the water inlet 111 of the motor housing 11, and the other axial flow hole is connected to the water outlet 112 of the motor housing 11. The two axial flow holes are arranged adjacent to each other. The end face of the second flange 132 opposite to the first flange 131 is also connected to a junction box 14. The junction box 14 is close to the upper edge of the second flange 132, and the water inlet 111 and the water outlet 112 are close to the lower edge of the second flange 132. Two brake assembly mounting parts 15 are symmetrically arranged on the end face of the second flange 132 opposite to the first flange 131.

[0065] Specifically, the braking assembly 2 includes a caliper 21 and a brake disc 22. The caliper 21 is installed on the second end of the motor housing 11, and the brake disc 22 is sleeved on the brake end 122. When the caliper 21 is connected to the brake disc 22, the braking assembly 2 is in a braking state, and both the brake disc 22 and the brake end 122 are fixed. When the caliper 21 is separated from the brake disc 22, the braking assembly 2 is in a released state, and the brake disc 22 can rotate with the brake end 122.

[0066] In this embodiment, the caliper 21 restricts the rotational degree of freedom of the brake disc 22, thereby restricting the rotational degree of freedom of the brake end 122. This avoids the problem of friction damage to the motor shaft 12 caused by the caliper 21 directly acting on the brake end 122, and extends the service life of the drive motor 1.

[0067] It should be understood that, such as Figure 6 As shown, the connection and separation of the caliper 21 and the brake disc 22 can be achieved in various ways. For example, the caliper 21 can extend or retract, or the caliper 21 can be rotated. The brake disc 22 and the brake end 122 can be connected by a spline to ensure synchronous movement of the brake disc 22 and the brake end 122. In other embodiments, the brake disc 22 can also be connected to the brake end 122 through a connecting sleeve 23.

[0068] In one exemplary embodiment of this application, such as Figure 7 As shown, the caliper 21 has a hydraulic drive and a brake block 211. The hydraulic drive can drive the brake block to extend and retract. When the brake block retracts to the hidden position, the caliper 21 separates from the brake disc 22, the brake assembly 2 is in the released state, and the brake disc 22 can rotate with the brake end 122. When the brake block 211 extends and abuts against the brake disc 22, the brake disc 22 is fixed at the current angle, and both the brake disc 22 and the brake end 122 are fixed. Specifically, the extension and retraction direction of the brake block 211 can be the axial direction of the drive motor 1.

[0069] Preferably, there are two calipers 21, which are arranged opposite each other along the radial direction of the motor shaft 12. This arrangement allows braking force to be applied to the brake disc 22 at multiple points of application, ensuring stable braking performance.

[0070] In conjunction with the foregoing embodiments, the caliper 21 can be mounted on the brake assembly mounting portion 15. The number of brake assembly mounting portions 15 is the same as the number of calipers 21. The brake assembly mounting portion 15 can be integrally formed with the second flange 132. Specifically, the brake assembly mounting portion 15 may include three or more adjacent support columns. The support columns protrude along the axial direction of the second flange 132, that is, extend along the axial direction of the motor housing 11. Mounting holes are provided at the ends of the support columns for connection with the mounting fittings of the caliper 21. Connecting ribs, connecting plates, and other structures are provided between any two support columns. Reinforcing ribs, reinforcing ribs, and other structures are also provided on the end faces of the support columns and the second flange 132 to ensure the structural strength of the brake assembly mounting portion 15.

[0071] It should be noted that the number and position of the calipers 21 can be adjusted according to actual needs. For example, the number of calipers 21 can be set to three or four, and the calipers 21 can be arranged at intervals along the circumference of the brake disc 22.

[0072] According to another specific embodiment of this application, a vehicle is provided, including a motor assembly, which is the motor assembly in the above embodiment.

[0073] By applying the motor assembly in the above embodiments to a vehicle, the space occupied by the motor assembly can be saved, and the utilization rate of the vehicle interior space can be improved.

[0074] This application also provides a preferred embodiment of a vehicle, which includes two motor assemblies, both of which are the motor assemblies described in the above embodiments.

[0075] The vehicles can be driverless new energy vehicles, especially mining vehicles.

[0076] The two motor assemblies are symmetrically placed along the width of the vehicle body, and both motor assemblies are connected to the vehicle axle. Specifically, the motor housing 11 is provided with connecting lugs and other structures to achieve the connection with the axle. The external components connected to the motor assembly can be different parts of the axle or vehicle components arranged on the axle.

[0077] Preferably, the water inlets 111 and outlets 112 of the two motor assemblies are both located close to the geometric center in the width direction of the vehicle body.

[0078] Preferably, the water inlets 111 of the two motor assemblies are symmetrical about the center line of the vehicle body length, and the water outlets 112 of the two motor assemblies are symmetrical about the center line of the vehicle body length.

[0079] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0080] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A motor assembly, characterized in that, The device includes a drive motor (1) and a braking assembly (2). The drive motor (1) includes a motor housing (11) and a motor shaft (12). The first end of the motor shaft (12) extends to the outside of the first end of the motor housing (11) to form a drive end (121) of the drive motor (1). The second end of the motor shaft (12) extends to the outside of the second end of the motor housing (11) to form a braking end (122) of the drive motor (1). The braking assembly (2) is connected to the motor housing (11). The braking assembly (2) has a braking state for braking the braking end (122) and a releasing state for releasing the braking end (122). One end of the motor housing (11) is provided with a water inlet (111) and a water outlet (112). The water inlet (111) and the water outlet (112) are connected to the internal cooling channel of the motor housing (11).

2. The motor assembly according to claim 1, characterized in that, The drive motor (1) also includes a junction box (14), which is disposed at the end of the motor housing (11) and connected to the motor housing (11).

3. The motor assembly according to claim 2, characterized in that, The junction box (14), the water inlet (111), and the water outlet (112) are all located on the side where the brake end (122) is located.

4. The motor assembly according to claim 2, characterized in that, Along the radial direction of the motor shaft (12), the junction box (14) is arranged opposite to the water inlet (111) and the water outlet (112).

5. The motor assembly according to any one of claims 1-4, characterized in that, The end face of the motor housing (11) is provided with a brake assembly mounting part (15). The brake assembly mounting part (15) protrudes from the end face of the motor housing (11) along the axial direction of the motor housing (11). The brake assembly mounting part (15) is used to mount the brake assembly (2).

6. The motor assembly according to any one of claims 1-4, characterized in that, The motor housing (11) has a first flange (131) at its first end and a second flange (132) at its second end. A brake assembly mounting part (15) is provided on the end face of the second flange (132) away from the first flange (131). The brake assembly mounting part (15) is integrally formed with the second flange (132) and is used to install the brake assembly (2).

7. The motor assembly according to claim 6, characterized in that, The first flange (131) has an axial connection hole (1310), and the outer peripheral surface of the second flange (132) forms the assembly surface (1320) of the second flange (132). The assembly surface (1320) and the axial connection hole (1310) are both used for assembly and connection with external components.

8. The motor assembly according to any one of claims 1-4, characterized in that, The braking assembly (2) includes a caliper (21) and a brake disc (22). The caliper (21) is installed on the second end of the motor housing (11), and the brake disc (22) is sleeved on the brake end (122). When the caliper (21) is connected to the brake disc (22), the braking assembly (2) is in the braking state. The brake disc (22) and the brake end (122) are both fixed. When the caliper (21) is separated from the brake disc (22), the braking assembly (2) is in the release state, and the brake disc (22) can rotate with the brake end (122).

9. The motor assembly according to claim 8, characterized in that, There are two calipers (21), which are arranged opposite each other along the radial direction of the motor shaft (12).

10. A vehicle, characterized in that, Includes a motor assembly, said motor assembly being the motor assembly according to any one of claims 1-9.

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