A bridge assembly

Abstract

This application discloses an electric axle assembly. The electric axle assembly includes a control component and a motor. The motor has functional components arranged along a first preset direction; wherein the control component is disposed to the side of the motor and connected to the motor along a second preset direction, the first preset direction and the second preset direction being non-parallel, and the first preset direction being the direction of gravity. By arranging the control component to the side of the motor (relative to the direction of gravity), the height of the electric axle assembly can be reduced, thereby meeting the overall vehicle layout requirements and facilitating the expansion of interior space.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an electric axle assembly. Background Technology

[0002] There are currently several different layout options for electric bridges.

[0003] One type is the traditional three-in-one bridge, such as Figure 1 As shown, the reducer, motor, and controller are separate components connected by bolts. Another type is as follows... Figure 2 As shown, this bridge integrates the reducer housing, controller housing, and motor housing into one, reducing the number of screws. This bridge is usually an oil-cooled bridge.

[0004] The two types of electric bridges mentioned above typically place the controller above the motor, so the Z-axis height usually exceeds 310mm, which is not very friendly to the overall vehicle layout, especially in locations with high space requirements such as the cabin.

[0005] Therefore, a new electric bridge assembly is urgently needed. Utility Model Content

[0006] The purpose of this utility model is to provide an electric axle assembly that reduces the height of the electric axle assembly by arranging the control components on the side of the motor, thereby meeting the layout requirements of the vehicle and facilitating the expansion of the vehicle's interior space.

[0007] This application discloses a bridge assembly, which includes:

[0008] Control components;

[0009] The motor has functional components arranged along a first preset direction;

[0010] The control component is located on the side of the motor and connected to the motor along a second preset direction. The first preset direction and the second preset direction are not parallel to each other, and the first preset direction is the direction of gravity.

[0011] Furthermore, the first preset direction and the second preset direction are perpendicular to each other.

[0012] Furthermore, the functional component includes a vent valve and / or an oil bottom housing, wherein the vent valve is located at the top of the motor and the oil bottom housing is located at the bottom of the motor.

[0013] Furthermore, the control component includes a housing, a power distribution unit, a capacitor, a voltage board unit, and a charging controller. The power distribution unit, the capacitor, the voltage board unit, and the charging controller are arranged together within the housing along a first preset plane, wherein the first preset plane is a plane that includes the first preset direction.

[0014] Furthermore, the voltage board unit integrates an electrically connected vehicle controller and an inverter.

[0015] Furthermore, the control component also includes a filter connected to the capacitor.

[0016] Furthermore, the filter is arranged on one side of the capacitor along the second preset direction.

[0017] Furthermore, the filter and the capacitor are arranged together within the housing along the first preset plane.

[0018] Furthermore, the voltage board unit includes a low voltage board, a support plate, a high voltage board, and a power module, and the low voltage board, the support plate, the high voltage board, and the power module are arranged sequentially in the housing along the second preset direction.

[0019] Furthermore, the control component also includes a water-cooling unit, which is arranged on the other side of the power module opposite to the high-voltage board.

[0020] Furthermore, the electric bridge assembly also includes a reducer, which is disposed on the side of the motor and connected to the motor along a second preset direction or a third preset direction, wherein the third preset direction is not parallel to the first preset direction and is not parallel to the second preset direction.

[0021] Furthermore, the height of the bridge assembly along the first preset direction is α, where α ≤ 300 mm.

[0022] The bridge assembly provided by this utility model has at least the following beneficial effects, including but not limited to:

[0023] 1) By arranging the control components on the side of the motor, the height of the electric axle assembly can be reduced, thereby meeting the overall vehicle layout requirements and facilitating the expansion of interior space.

[0024] 2) The bridge assembly improves the integration of the control components through the miniaturization design of the filter, the common board integration of the vehicle controller and inverter, the multi-layer layout design of the voltage board unit, and the reasonable layout of the electrical components in the control components. This facilitates the integration of the oil circuit and part of the water circuit, eliminates some parts in related technologies, realizes the multi-in-one design, and reduces the weight and cost of the bridge assembly. Attached Figure Description

[0025] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a three-in-one water-cooled bridge in related technologies;

[0027] Figure 2 This is a schematic diagram of the integrated housing oil-cooled bridge structure in related technologies;

[0028] Figure 3 This is a schematic diagram of the structure of the bridge assembly provided in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of the internal layout of the control components provided in an embodiment of this application;

[0030] Figure 5 A schematic diagram illustrating the relative positions of the capacitor and filter provided in an embodiment of this application;

[0031] Figure 6 Another schematic diagram illustrating the relative positions of the capacitor and filter provided in an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the arrangement of the voltage plate unit provided in an embodiment of this application.

[0033] Icon: 100 - Electric bridge assembly;

[0034] 10-Motor; 101-Vent valve; 102-Oil bottom shell;

[0035] 11-Control component; 111-Housing; 112-Power distribution unit; 113-Capacitor; 114-Voltage board unit; 1141-Low voltage board; 1142-Support board; 1143-High voltage board; 1144-Power module; 115-Charging controller; 118-Filter;

[0036] 12-Reducer. Detailed Implementation

[0037] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] Please refer to Figures 3-7 This application discloses an electric bridge assembly 100, including a control component 11 and a motor 10. The motor 10 has functional components arranged along a first preset direction; wherein, the control component 11 is disposed on the side of the motor 10 and connected to the motor 10 along a second preset direction, the first preset direction and the second preset direction are not parallel to each other, and the first preset direction is the direction of gravity.

[0040] It should be noted that, such as Figure 3 As shown, the first preset direction refers to the direction of gravity, which is the Z-axis direction. The second preset direction refers to a direction that is not parallel to the Z-axis direction, which is the Y-axis direction in one embodiment of this example.

[0041] It is worth noting that by arranging the control components on the side of the motor 10 (compared to the functional components), the height of the electric axle assembly 100 can be reduced, thereby meeting the overall vehicle layout requirements and facilitating the expansion of interior space.

[0042] Optionally, the first preset direction and the second preset direction are perpendicular to each other.

[0043] Specifically, the first preset direction is the direction of gravity (i.e., the vertical direction, usually "up and down" as shown in the figure). The functional components of the motor 10 are arranged along this direction so that they can work normally under the action of gravity. The control components are connected along a second direction (horizontal) perpendicular to this direction. This avoids the control components being stacked above or below the motor 10, thereby reducing the overall structural height (Z-axis height). This makes it easier to use in vehicles with compact cabin areas or spaces, improving the flexibility of the vehicle layout. Compared to the control components being inclined to the motor 10, the mutually perpendicular arrangement can minimize space encroachment and further improve space utilization.

[0044] In some embodiments, the functional components include a vent valve 101 and / or an oil bottom housing 102, with the vent valve 101 disposed at the top of the motor 10 and the oil bottom housing 102 disposed at the bottom of the motor 10.

[0045] It is worth noting that during operation, especially during prolonged or heavy-load operation, the internal pressure of the motor 10 will increase due to temperature rise. The function of the vent valve 101 is to release overpressured gas, maintain internal pressure balance, and prevent damage or leakage of the seals due to excessive internal pressure. Therefore, it needs to be placed at the top so that hot air and steam tend to rise, thereby improving exhaust efficiency.

[0046] It is also worth noting that the motor 10 usually requires lubricating oil / cooling oil for heat dissipation. The oil circulates in the motor 10 and eventually falls back to the bottom by gravity, where it concentrates and settles. Therefore, the oil bottom shell 102 is set at the bottom of the motor 10, and the natural return flow under gravity eliminates the need for complex return oil pipelines, making the system simple and reliable.

[0047] Therefore, the functional components need to be constantly arranged in the first preset direction, and their functions are made more perfect in conjunction with gravity. At this time, arranging the control components on the side of the motor 10 can minimize the height in the first preset direction and improve the applicability of the bridge assembly 100 to compact spaces.

[0048] In some embodiments, the control components include a housing 111, a power distribution unit 112, a capacitor 113, a voltage board unit 114, and a charging controller 115. The power distribution unit 112, the capacitor 113, the voltage board unit 114, and the charging controller 115 are arranged together in the housing 111 along a first preset plane, wherein the first preset plane is a plane that includes a first preset direction.

[0049] It should be understood that, such as Figure 4 As shown, in this embodiment, the power distribution unit 112 is located in the upper right, the capacitor 113 is located in the upper left, the voltage plate unit 114 is located in the lower left, and the charging controller 115 is located in the lower right, so as to make full use of the internal space of the housing 111.

[0050] It is worth noting that the rational layout of the power distribution unit 112, capacitor 113, voltage board unit 114 and charging controller 115 in the bridge assembly 100 can improve the integration of the control components, thereby facilitating the integration of the oil circuit and part of the water circuit. This can eliminate some parts in related technologies, realize an all-in-one design, and reduce the weight and cost of the bridge assembly 100.

[0051] Optionally, the voltage board unit 114 integrates an electrically connected vehicle controller and inverter.

[0052] Specifically, the vehicle controller and inverter are directly integrated into the voltage board unit 114 to form a "common board design". This avoids the two existing as independent modules in the traditional design, reduces the system hierarchy, and the integrated structure is smaller in size, which is in line with the current demand of "compact, lightweight and modular" new energy vehicles and is conducive to the trend of integration.

[0053] In some embodiments, the control component further includes a filter 118 connected to a capacitor 113.

[0054] Please refer to this again. Figure 5 The filter 118 is arranged on one side of the capacitor 113 along the second preset direction.

[0055] It is worth noting that arranging the filter 118 along the second preset direction on one side of the capacitor 113 means that the components are arranged laterally in the horizontal direction. This avoids high stacking, facilitates the overall thinning of the control components, meets the space requirements of the whole vehicle, and realizes the horizontal partitioning layout of the electrical function modules, which is clearer and neater.

[0056] Please refer to this again. Figure 6 The filter 118 and the capacitor 113 are arranged together in the housing 111 along the first preset plane.

[0057] It is worth noting that in some other embodiments, capacitor 113 and filter 118 can also achieve the same function by tiling them together, which can also avoid high stacking.

[0058] Optionally, the voltage board unit 114 includes a low voltage board 1141, a support plate 1142, a high voltage board 1143, and a power module 1144. The low voltage board 1141, the support plate 1142, the high voltage board 1143, and the power module 1144 are arranged sequentially in the housing 111 along a second preset direction.

[0059] Specifically, the low-voltage board 1141 generally carries low-voltage and weak-current functions such as signal control, power management, and communication interfaces; the high-voltage board 1143 carries the drive power control part, such as IGBT drive, voltage monitoring and other high-voltage components; the power module 1144 is usually a high-power output part such as current sensing, which generates a lot of heat; the support plate 1142 serves as structural support, EMC isolation or heat conduction channel. This arrangement not only makes the structure of the voltage board unit 114 more compact and reduces the Z-axis height, but also achieves functional electrical and thermal layer isolation, improving system reliability.

[0060] In some embodiments, the control component further includes a water-cooling unit disposed on the other side of the power module 1144 opposite to the high-voltage board 1143.

[0061] Please refer to this again. Figure 3The electric bridge assembly 100 also includes a reducer 12, which is disposed on the side of the motor 10 and connected to the motor 10 along a second preset direction or a third preset direction. The third preset direction is not parallel to the first preset direction and is not parallel to the second preset direction.

[0062] It is understandable that the third preset direction can be the X-axis direction. Depending on the specific implementation environment, the reducer 12 in this embodiment is a planetary gear reducer 12, which can be mounted on the side of the motor 10 along the X-axis or Y-axis direction to further reduce the Z-axis height.

[0063] In some embodiments, the height of the bridge assembly 100 along a first preset direction is α, where α ≤ 300 mm.

[0064] It is worth noting that limiting the Z-axis height of the electric axle assembly 100 to 300mm can further facilitate the placement of the electric axle in locations such as the cabin where Z-axis space requirements are needed, thereby benefiting the design of compact models.

[0065] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0066] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of this application. However, those skilled in the art will recognize that embodiments of this invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of this application.

[0067] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments described herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0068] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0069] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0070] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0071] The above description of the embodiments shown in this utility model (including the content in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments of this application, and such modifications will be within the spirit and scope of the utility model.

[0072] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of the embodiments of this application. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring various aspects of the embodiments of this application.

Claims

1. A bridge assembly, characterized in that, include: Control components; The motor has functional components arranged along a first preset direction; The control component is located on the side of the motor and connected to the motor along a second preset direction. The first preset direction and the second preset direction are not parallel to each other, and the first preset direction is the direction of gravity.

2. The bridge assembly according to claim 1, characterized in that, The first preset direction and the second preset direction are perpendicular to each other.

3. The bridge assembly according to claim 1, characterized in that, The functional components include a vent valve and / or an oil bottom housing, wherein the vent valve is located at the top of the motor and the oil bottom housing is located at the bottom of the motor.

4. The bridge assembly according to claim 1, characterized in that, The control component includes a housing, a power distribution unit, a capacitor, a voltage board unit, and a charging controller. The power distribution unit, the capacitor, the voltage board unit, and the charging controller are arranged together in the housing along a first preset plane, wherein the first preset plane is a plane that includes the first preset direction.

5. The bridge assembly according to claim 4, characterized in that, The voltage board unit integrates a vehicle controller and an inverter that are electrically connected.

6. The bridge assembly according to claim 4, characterized in that, The control component also includes a filter connected to the capacitor.

7. The bridge assembly according to claim 6, characterized in that, The filter is arranged on one side of the capacitor along the second preset direction.

8. The bridge assembly according to claim 6, characterized in that, The filter and the capacitor are arranged together along the first preset plane inside the housing.

9. The bridge assembly according to claim 4, characterized in that, The voltage board unit includes a low voltage board, a support plate, a high voltage board, and a power module. The low voltage board, the support plate, the high voltage board, and the power module are arranged sequentially in the housing along the second preset direction.

10. The bridge assembly according to claim 9, characterized in that, The control component also includes a water-cooling unit, which is arranged on the side of the power module opposite to the high-voltage board.

11. The bridge assembly according to claim 1, characterized in that, The bridge assembly also includes a speed reducer, which is disposed on the side of the motor and connected to the motor along a second preset direction or a third preset direction, wherein the third preset direction is not parallel to the first preset direction and the third preset direction is not parallel to the second preset direction.

12. The bridge assembly according to any one of claims 1-11, characterized in that, The height of the bridge assembly along the first preset direction is α, where α ≤ 300 mm.

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