Speed reducer assembly and vehicle

Abstract

The speed reducer assembly comprises a first speed reducer and a second speed reducer, the first speed reducer comprises a first motor, a first input shaft and a first output shaft which are sequentially in power connection, and the second speed reducer comprises a second motor, a second input shaft and a second output shaft which are sequentially in power connection. The first output shaft and the second output shaft are used for being in power connection with two wheels oppositely distributed in the transverse direction correspondingly. The first input shaft and the second input shaft are oppositely distributed on the two sides of the middle connecting plate, the first output shaft and the second output shaft are oppositely distributed on the two sides of the middle connecting plate, the first input shaft and the second output shaft are located on the same side of the middle connecting plate, and the second input shaft and the first output shaft are located on the same side of the middle connecting plate. According to the speed reducer assembly, power of the two speed reducers can be output from the middle connecting plate in a staggered mode, the arrangement space of the speed reducers in the Y direction is reduced, the design requirements for miniaturization and light weight are met, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a reducer assembly and a vehicle with the reducer assembly. Background Art

[0002] As the types of new energy vehicles increase, the requirements for electric bridges are also getting higher and higher, especially some high-end models on the market have been equipped with dual-motor electric bridges. However, compared with the traditional single-motor electric bridge, the dual-motor electric bridge has a more complex reducer structure and a larger envelope volume. One of the effects is that it is more difficult to carry the whole vehicle, which contradicts the demand for miniaturized design of the electric bridge assembly. When the dual-motor electric bridge still adopts the single-motor electric bridge reducer structure, the two single motors are spaced apart and distributed along the Y direction, which will cause the Y-direction size of the electric bridge to become larger, and the weight cost will increase, which is not easy to meet the vehicle carrying requirements, and there is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a reducer assembly, which can stagger the power of two reducers from the middle connecting plate, so that the overall structure has a smaller layout space along the Y direction, and can meet the needs of miniaturization and lightweight of the dual-motor bridge, and the cost is low.

[0004] According to the embodiment of the utility model, the reducer assembly includes: a first reducer and a second reducer, the first reducer includes a first motor, a first input shaft and a first output shaft that are power-connected in sequence, the second reducer includes a second motor, a second input shaft and a second output shaft that are power-connected in sequence, the first output shaft and the second output shaft are respectively used to be power-connected to two wheels that are oppositely distributed in the laterally direction; an intermediate connecting plate, the first input shaft and the second input shaft are relatively distributed on both sides of the intermediate connecting plate, the first output shaft and the second output shaft are relatively distributed on both sides of the intermediate connecting plate, and the first input shaft and the second output shaft are relatively distributed on both sides of the intermediate connecting plate, and the first input shaft and the second output shaft are located on the same side of the intermediate connecting plate, and the second input shaft and the first output shaft are on the same side of the intermediate connecting plate.

[0005] According to the reducer assembly of the embodiment of the utility model, the power of the two reducers can be output alternately by staggeredly distributing the input shafts and output shafts corresponding to the first reducer and the second reducer on both sides of the middle connecting plate. The overall structure has a smaller layout space along the Y direction, which can meet the needs of miniaturization and lightweight of the dual-motor electric bridge, reduce costs, and meet the requirements of vehicle installation.

[0006] According to some embodiments of the reducer assembly of the present utility model, a first transmission shaft is also dynamically connected between the first input shaft and the first output shaft, the intermediate connecting plate is provided with a first penetration hole, and the first transmission shaft is penetrated through the first penetration hole;

[0007] And / or, a second transmission shaft is also dynamically connected between the second input shaft and the second output shaft, the intermediate connecting plate is provided with a second penetration hole, and the second transmission shaft is penetrated through the second penetration hole.

[0008] According to the reducer assembly of some embodiments of the present invention, the axis of the first through-hole is parallel to and spaced apart from the axis of the second through-hole.

[0009] According to the reducer assembly of some embodiments of the present utility model, in the vertical projection of the intermediate connecting plate, the projection of the first through-hole coincides with the projection of the second through-hole.

[0010] According to some embodiments of the reducer assembly of the present utility model, the first input shaft is provided with a first input gear, the first transmission shaft is provided with a first transmission gear and a second transmission gear spaced apart in the axial direction, the first output shaft is provided with a first output gear, the first input gear is meshed with the first transmission gear, the second transmission gear is meshed with the first output gear, and the first transmission gear and the second transmission gear are respectively located on both sides of the intermediate connecting plate;

[0011] And / or, the second input shaft is provided with a second input gear, the second transmission shaft is provided with a third transmission gear and a fourth transmission gear spaced apart in the axial direction, the second output shaft is provided with a second output gear, the second input gear is meshed with the third transmission gear, the fourth transmission gear is meshed with the second output gear, and the third transmission gear and the fourth transmission gear are respectively located on both sides of the intermediate connecting plate.

[0012] According to some embodiments of the reducer assembly of the utility model, the intermediate connecting plate is provided with a first input mounting hole and a second input mounting hole, the end of the first input shaft is rotatably supported in the first input mounting hole, and the end of the second input shaft is rotatably supported in the second input mounting hole;

[0013] And / or, the intermediate connecting plate is provided with a first output mounting hole and a second output mounting hole, the end of the first output shaft is rotatably supported in the first output mounting hole, and the end of the second output shaft is rotatably supported in the second output mounting hole.

[0014] According to some embodiments of the reducer assembly of the present utility model, the first input mounting hole and the second input mounting hole are relatively distributed along the thickness direction of the intermediate connecting plate;

[0015] And / or, the first output mounting hole and the second output mounting hole are relatively distributed along the thickness direction of the intermediate connecting plate.

[0016] According to some embodiments of the reducer assembly of the present utility model, the first input mounting hole and the second input mounting hole are directly opposite and connected along the thickness direction of the intermediate connecting plate;

[0017] And / or, the first output mounting hole and the second output mounting hole are directly opposite to and connected with each other along the thickness direction of the intermediate connecting plate.

[0018] According to the reducer assembly of some embodiments of the present invention, the housing of the first reducer and the housing of the second reducer are connected as a whole via the intermediate connecting plate.

[0019] The utility model also provides a vehicle.

[0020] A vehicle according to an embodiment of the utility model is provided with a reducer assembly according to any one of the above embodiments.

[0021] The advantages of the vehicle and the above-mentioned reducer assembly over the prior art are the same and will not be described in detail here.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 The structure of the reducer assembly according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of the reducer assembly according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 3 It is a structural schematic diagram of an intermediate connecting plate of a reducer assembly according to an embodiment of the utility model;

[0027] Figure 4 The power transmission path of the reducer assembly according to the embodiment of the utility model is Figure 1 ;

[0028] Figure 5 The power transmission path of the reducer assembly according to the embodiment of the utility model is Figure 2.

[0029] Reference numerals:

[0030] Reducer assembly 100,

[0031] a first reducer 1, a first motor 11, a first input shaft 12, a first input gear 121, a first output shaft 13, a first output gear 131, a first transmission shaft 14, a first transmission gear 141, a second transmission gear 142,

[0032] The second reducer 2, the second motor 21, the second input shaft 22, the second input gear 221, the second output shaft 23, the second output gear 231, the second transmission shaft 24, the third transmission gear 241, the fourth transmission gear 242,

[0033] The middle connecting plate 3 has a first through hole 31 , a second through hole 32 , a first input mounting hole 33 , a second input mounting hole 34 , and a first output mounting hole 35 . DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0038] Reference below Figure 1-Figure 5 The reducer assembly 100 according to the embodiment of the utility model is described. By providing an intermediate connecting plate 3 at the junction of the first reducer 1 and the second reducer 2, the power of the first reducer 1 and the second reducer 2 can be output alternately from the intermediate connecting plate 3, thereby realizing the staggered driving of the two lateral wheels of the vehicle. In this way, the arrangement space of the reducer assembly 100 in the Y direction can be made smaller to meet the internal loading requirements of the vehicle.

[0039] like Figure 1-Figure 5 As shown, a reducer assembly 100 according to an embodiment of the present utility model includes: a first reducer 1 , a second reducer 2 and an intermediate connecting plate 3 .

[0040] The first reducer 1 includes a first motor 11, a first input shaft 12 and a first output shaft 13 which are power-connected in sequence, and the second reducer 2 includes a second motor 21, a second input shaft 22 and a second output shaft 23 which are power-connected in sequence. The first output shaft 13 and the second output shaft 23 are respectively used for power connection with two wheels which are oppositely distributed in the transverse direction. That is to say, the power of the first reducer 1 and the second reducer 2 can respectively drive the two transverse wheels of the vehicle to rotate.

[0041] Specifically, the first reducer 1 includes a first motor 11, a first input shaft 12 and a first output shaft 13, and the three are connected in sequence, and the output end of the first output shaft 13 is connected to a wheel power, so that the driving force of the first motor 11 is output to a wheel through the first input shaft 12 and the first output shaft 13, and the second reducer 2 includes a second motor 21, a second input shaft 22 and a second output shaft 23, and the three are connected in sequence, and the output end of the second output shaft 23 is connected to another wheel power, wherein the two wheels are relatively distributed along the lateral direction of the vehicle, so that the driving force of the second motor 21 is output to the other wheel through the second input shaft 22 and the second output shaft 23, so that the dual motors drive the two wheels to rotate respectively.

[0042] Among them, the reducer assembly 100 is arranged along the lateral direction of the vehicle, and the power output directions of the first reducer 1 and the second reducer 2 are respectively parallel to the lateral direction of the vehicle. Among them, the reducer assembly 100 can be used to drive the two rear wheels of the vehicle to rotate, and can also be used to drive the two front wheels of the vehicle to rotate. Moreover, the four wheels of the vehicle can be driven to rotate respectively by two sets of reducer assemblies 100, which can be applicable to the front-wheel drive mode and / or rear-wheel drive mode and four-wheel drive mode of the vehicle, etc., and its application range is wider, which can meet the configuration requirements of different types of vehicles.

[0043] The first input shaft 12 and the second input shaft 22 are relatively distributed on both sides of the intermediate connecting plate 3, the first output shaft 13 and the second output shaft 23 are relatively distributed on both sides of the intermediate connecting plate 3, and the first input shaft 12 and the second output shaft 23 are located on the same side of the intermediate connecting plate 3, and the second input shaft 22 and the first output shaft 13 are located on the same side of the intermediate connecting plate 3. In other words, the first input shaft 12 and the first output shaft 13 are spaced apart and distributed on both sides of the intermediate connecting plate 3, and the second input shaft 22 and the second output shaft 23 are spaced apart and distributed on both sides of the intermediate connecting plate 3, so that the power on the first input shaft 12 and the second input shaft 22 can be staggered and output to the first output shaft 13 and the second output shaft 23, so as to achieve staggered power output of the first reducer 1 and the second reducer 2.

[0044] Specifically, Figure 1 As shown, the overall structure of the reducer assembly 100 can be T-shaped, one of the first input shaft 12 and the second input shaft 22 can be arranged on the left side or the right side of the intermediate connecting plate 3, and the other can be arranged on the right side or the left side of the intermediate connecting plate 3. In this embodiment, the first input shaft 12 of the first reducer 1 can be arranged on the left side of the intermediate connecting plate 3, and the second input shaft 22 of the second reducer 2 can be arranged on the right side of the intermediate connecting plate 3, and the first input shaft 12 and the second input shaft 22 are arranged relatively. Similarly, the first output shaft 13 of the first reducer 1 can be arranged on the right side of the intermediate connecting plate 3, and the second output shaft 14 of the second reducer 2 can be arranged on the right side of the intermediate connecting plate 3. The second output shaft 23 is located on the left side of the intermediate connecting plate 3, and the first output shaft 13 and the second output shaft 23 are relatively distributed, and the first input shaft 12 and the second output shaft 23 are both located on the left side of the intermediate connecting plate 3, and the second input shaft 22 and the first output shaft 13 are both located on the right side of the intermediate connecting plate 3. Therefore, the driving force of the first motor 11 is input into the first input shaft 12 from the left side, passes through the intermediate connecting plate 3, and is then output from the first output shaft 13 on the right side. The driving force of the second motor 21 is input into the second input shaft 22 from the right side, passes through the intermediate connecting plate 3, and is then output from the second output shaft 23 on the left side, thereby realizing staggered power output respectively.

[0045] Therefore, the driving of the wheels is achieved by respectively passing the driving forces of the first motor 11 and the second motor 21 through the intermediate connecting plate 3 and outputting them to the corresponding wheels. This arrangement can make the power transmission structure of the first reducer 1 and the second reducer 2 more compact along the Y direction, rationally utilize the structure of the intermediate connecting plate 3, achieve staggered distribution of the power transmission structure, make it occupy less space, realize the miniaturization and lightweight of the dual-motor electric bridge, easily meet the vehicle's mounting requirements, and at the same time lower the cost of the entire vehicle.

[0046] According to the reducer assembly 100 of the embodiment of the utility model, the input shafts and output shafts corresponding to the first reducer 1 and the second reducer 2 are staggeredly distributed on both sides of the middle connecting plate 3, so that the power of the two reducers can be staggeredly output. The overall structure has a smaller layout space along the Y direction, and can meet the needs of miniaturization and lightweight of the dual-motor electric bridge, reduce costs, and meet the requirements of vehicle installation.

[0047] In some embodiments, a first transmission shaft 14 is also dynamically connected between the first input shaft 12 and the first output shaft 13. The intermediate connecting plate 3 is provided with a first penetration hole 31, and the first transmission shaft 14 is penetrated through the first penetration hole 31. That is to say, the first transmission shaft 14 is penetrated through the intermediate connecting plate 3, and the first input shaft 12 and the first output shaft 13 can be dynamically connected alternately to the two sides of the intermediate connecting plate 3 to realize alternate power transmission.

[0048] Specifically, Figure 1 and Figure 2 As shown, the first transmission shaft 14 is located between the first input shaft 12 and the first output shaft 13, and is dynamically connected to the two. The middle connecting plate 3 is provided with a first through hole 31, which is configured as a circular hole and penetrates along the thickness direction of the middle connecting plate 3, and can be penetrated by the first transmission shaft 14. Figure 4 Schematic diagram of the driving force transmission path of the first motor 11, and the left end of the first transmission shaft 14 is connected to the first input shaft 12, and the right end of the first transmission shaft 14 is connected to the first output shaft 13. In this way, the driving force of the first motor 11 is transmitted to the first input shaft 12, and transmitted to the first output shaft 13 through the first transmission shaft 14, so that the driving force is output from the left side and passes through the middle connecting plate 3 to be output from the right side, driving the right wheel to rotate.

[0049] And / or, a second transmission shaft 24 is also dynamically connected between the second input shaft 22 and the second output shaft 23, the middle connecting plate 3 is provided with a second through hole 32, and the second transmission shaft 24 is penetrated through the second through hole 32, that is, the second transmission shaft 24 is penetrated through the middle connecting plate 3, and the second input shaft 22 and the second output shaft 23 can be dynamically connected alternately to both sides of the middle connecting plate 3, thereby realizing staggered power transmission.

[0050] Specifically, Figure 1 and Figure 2 As shown, the second transmission shaft 24 is located between the second input shaft 22 and the second output shaft 23, and is dynamically connected to the two. The middle connecting plate 3 is provided with a second through hole 32, which is configured as a circular hole and penetrates along the thickness direction of the middle connecting plate 3, and the second transmission shaft 24 can be penetrated. Figure 5 2 is a schematic diagram of the driving force transmission path of the second motor 21, and the right end of the second transmission shaft 24 is connected to the second input shaft 22, and the left end of the second transmission shaft 24 is connected to the second output shaft 23. In this way, the driving force of the second motor 21 is transmitted to the second input shaft 22, and then transmitted to the second output shaft 23 through the second transmission shaft 24, so that the driving force is output from the right side and passes through the middle connecting plate 3 to be output from the left side, driving the left wheel to rotate. Among them, the first motor 11 and the second motor 21 can also drive the left wheel and the right wheel of the vehicle.

[0051] Therefore, by setting the first transmission shaft 14 and the second transmission shaft 24, the staggered distribution of the power transmission structures of the first reducer 1 and the second reducer 2 can be achieved. Compared with the symmetrical distribution of the power transmission structures of the two, the overall setting space in the Y direction can be effectively saved. The structure is compact and reasonable, which can meet the performance and layout requirements of the vehicle, thereby reducing the overall size of the reducer assembly 100. It is lighter in weight, which can improve the power density and torque density of the electric bridge, which is in line with the design goals of miniaturization and lightweight of the electric bridge, and effectively enhances the competitiveness of the electric bridge.

[0052] In some embodiments, the axis of the first through hole 31 is parallel to and spaced from the axis of the second through hole 32. Specifically, Figure 3 As shown, the first through hole 31 and the second through hole 32 are spaced apart and their central axes are spaced apart in parallel. In actual design, the first through hole 31 and the second through hole 32 can be spaced apart in the vertical direction, and the distance between the central axes can be set to at least one-third of the vertical distance of the middle connecting plate 3, which can ensure the structural strength of the middle connecting plate 3. During installation, the first transmission shaft 14 and the second transmission shaft 24 are respectively penetrated through the first through hole 31 and the second through hole 32, so that the first transmission shaft 14 and the second transmission shaft 24 are connected to the middle connecting plate 3 in parallel and spaced apart, and respectively penetrate the middle connecting plate 3, so that the staggered distribution of the first transmission shaft 14 and the second transmission shaft 24 can be achieved.

[0053] Therefore, through the above-mentioned arrangement, the installation of the first transmission shaft 14 and the second transmission shaft 24 can be made more compact, and the two pass through the intermediate connecting plate 3, and the transmission structures of the first reducer 1 and the second reducer 2 can be cross-connected to the two sides of the intermediate connecting plate 3, making the overall structure more compact and reducing the space occupied by the transmission structure to meet the vehicle mounting requirements.

[0054] In some embodiments, in the vertical projection of the middle connecting plate 3 , the projection of the first through hole 31 coincides with the projection of the second through hole 32 .

[0055] In actual design, the apertures of the first through hole 31 and the second through hole 32 can be set to be the same, and the centers of the two can be distributed spaced apart in the vertical direction. On the vertical projection of the intermediate connecting plate 3, the projection of the first through hole 31 and the projection of the second through hole 32 coincide with each other. That is to say, the shaft diameters of the first transmission shaft 14 and the second transmission shaft 24 can be set to be the same, that is, when the reduction ratios of the first reducer 1 and the second reducer 2 are the same, the overall structure can be relatively distributed along the intermediate connecting plate 3. This arrangement is simpler and the installation process is convenient and quick. Therefore, through the above arrangement, the vertical space of the intermediate connecting plate 3 can be utilized to reasonably arrange the installation positions of the first transmission shaft 14 and the second transmission shaft 24, which can save the longitudinal arrangement space of the two, making the overall structure of the reducer assembly 100 more compact and reasonable.

[0056] Also, in some other embodiments, the apertures of the first through hole 31 and the second through hole 32 may be different, but their projections may partially overlap. In this way, the shaft diameters of the first transmission shaft 14 and the second transmission shaft 24 may be set to be different and configured according to actual needs to ensure different power requirements of the vehicle.

[0057] In some embodiments, the first input shaft 12 is provided with a first input gear 121, the first transmission shaft 14 is provided with a first transmission gear 141 and a second transmission gear 142 spaced apart along the axial direction, the first output shaft 13 is provided with a first output gear 131, the first input gear 121 is meshed with the first transmission gear 141, the second transmission gear 142 is meshed with the first output gear 131, and the first transmission gear 141 and the second transmission gear 142 are respectively located on both sides of the middle connecting plate 3.

[0058] Specifically, the first transmission shaft 14, the first input shaft 12 and the first output shaft 13 are arranged in parallel and spaced apart from each other. Figure 1 and Figure 2As shown, the first input shaft 12 is provided with a first input gear 121, the first transmission shaft 14 is provided with a first transmission gear 141 and a second transmission gear 142 which are spaced apart and are respectively located at the axial ends of the first transmission shaft 14, and the first transmission shaft 14 passes through the middle connecting plate 3, that is, the first transmission gear 141 and the second transmission gear 142 are respectively located on both sides of the middle connecting plate 3, and the first output shaft 13 is provided with a first output gear 131, and the first transmission gear 141 can be located on the same side of the middle connecting plate 3 as the first input gear 121, and the second transmission gear 142 and the first output gear 131 are located on the same side of the middle connecting plate 3, so that the first input gear 121 is meshed with the first transmission gear 141, and the second transmission gear 142 is meshed with the first output gear 131 to achieve power transmission.

[0059] Therefore, when the first motor 11 is driven, Figure 4 As shown, the first input shaft 12 can be driven to rotate, and the first input shaft 12 drives the first input gear 121 to rotate and mesh with the first transmission gear 141, driving the first transmission shaft 14 to rotate, and the second transmission gear 142 rotates and meshes with the first output gear 131, driving the first output shaft 13 to rotate, thereby realizing the staggered transmission of power of the first motor 11, and through the gear matching deceleration, low-speed and high-torque power output can be obtained.

[0060] And / or, the second input shaft 22 is provided with a second input gear 221, the second transmission shaft 24 is provided with a third transmission gear 241 and a fourth transmission gear 242 which are spaced apart along the axial direction, the second output shaft 23 is provided with a second output gear 231, the second input gear 221 is meshed with the third transmission gear 241, the fourth transmission gear 242 is meshed with the second output gear 231, and the third transmission gear 241 and the fourth transmission gear 242 are respectively located on both sides of the middle connecting plate 3.

[0061] Specifically, the second transmission shaft 24, the second input shaft 22 and the second output shaft 23 are arranged in parallel and spaced apart from each other. Figure 1 and Figure 2 As shown, the second input shaft 22 is provided with a second input gear 221, the second transmission shaft 24 is provided with a third transmission gear 241 and a fourth transmission gear 242 which are spaced apart and are respectively located at the axial ends of the second transmission shaft 24, and the second transmission shaft 24 passes through the middle connecting plate 3, that is, the third transmission gear 241 and the fourth transmission gear 242 are respectively located on both sides of the middle connecting plate 3, and the second output shaft 23 is provided with a second output gear 231, and the third transmission gear 241 can be located on the same side of the middle connecting plate 3 as the second input gear 221, and the fourth transmission gear 242 and the second output gear 231 are located on the same side of the middle connecting plate 3, so that the second input gear 221 is meshed with the third transmission gear 241, and the fourth transmission gear 242 is meshed with the second output gear 231 to achieve power transmission.

[0062] Therefore, when the second motor 21 is driven, Figure 5 As shown, the second input shaft 22 can be driven to rotate, and the second input shaft 22 drives the second input gear 221 to rotate and mesh with the third transmission gear 241, driving the second transmission shaft 24 to rotate, and the fourth transmission gear 242 rotates and meshes with the second output gear 231, driving the second output shaft 23 to rotate, thereby realizing the staggered power transmission of the second motor 21, and through the gear matching deceleration, low-speed and high-torque power output can be obtained, and the controller adopts a dual electronic control form, by controlling the independent distribution of torque and speed of the first motor 11 and the second motor 21, the mechanical upper limit of the electric bridge is improved to meet the design requirements of high-performance new energy vehicles.

[0063] In some embodiments, a line connecting the first input shaft 12 and the first output shaft 13 is perpendicular to a line connecting the first transmission shaft 14 and the second transmission shaft 24 .

[0064] Specifically, the first input shaft 12 and the second input shaft 22 can be spaced apart and distributed along the front-to-back direction, and the line connecting the two extends along the front-to-back direction, and the first transmission shaft 14 and the second transmission shaft 24 are spaced apart and distributed along the up-down direction, and the line connecting the two extends along the up-down direction, so that the line connecting the first input shaft 12 and the first output shaft 13 is perpendicular to the line connecting the first transmission shaft 14 and the second transmission shaft 24. In actual design, according to the power transmission ratio, the first transmission shaft 14 and the second transmission shaft 24 can be respectively arranged on both sides of the line connecting the first input shaft 12 and the second input shaft 22, such as Figure 3 As shown; similarly, the line connecting the second input shaft 22 and the second output shaft 23 can also be distributed perpendicularly to the line connecting the first transmission shaft 14 and the second transmission shaft 24, that is, the same as the setting method of the first input shaft 12 and the first output shaft 13. Therefore, through the above-mentioned vertical setting, the two groups of power transmission structures can be staggered, and the structure of the intermediate connecting plate 3 is reasonably utilized to achieve a reasonable arrangement of the power transmission structure.

[0065] The first transmission shaft 14 and the second transmission shaft 24 are disposed close to the first input shaft 12 , and specific positions of the first transmission shaft 14 and the second transmission shaft 24 can be set according to actual transmission requirements.

[0066] In some embodiments, the middle connecting plate 3 is provided with a first input mounting hole 33 and a second input mounting hole 34 , the end of the first input shaft 12 is rotatably supported in the first input mounting hole 33 , and the end of the second input shaft 22 is rotatably supported in the second input mounting hole 34 .

[0067] Specifically, Figure 1As shown, the intermediate connecting plate 3 is provided with a first input mounting hole 33 on a side close to the first input shaft 12, and the first input mounting hole 33 can be constructed as a circular hole. The end of the first input shaft 12 can be rotatably supported in the first input mounting hole 33 through a connecting bearing, and the other end of the first input shaft 12 is connected to the output end of the first motor 11, and the intermediate connecting plate 3 is provided with a second input mounting hole 34 on a side close to the second input shaft 22, and the end of the second input shaft 22 can be rotatably supported in the second input mounting hole 34 through a connecting bearing, and the other end of the second input shaft 22 is connected to the output end of the second motor 21. Through the above settings, the first input shaft 12 and the second input shaft 22 can be installed on the intermediate connecting plate 3 respectively, and the rotation of the first input shaft 12 and the second input shaft 22 can be realized.

[0068] And / or, the middle connecting plate 3 is provided with a first output mounting hole 35 and a second output mounting hole, the end of the first output shaft 13 is rotatably supported in the first output mounting hole 35, and the end of the second output shaft 23 is rotatably supported in the second output mounting hole.

[0069] Specifically, the intermediate connecting plate 3 is provided with a first output mounting hole 35 on a side close to the first output shaft 13, and the first output mounting hole 35 can be constructed as a round hole. The end of the first output shaft 13 can be rotatably supported in the first output mounting hole 35 through a connecting bearing, and the intermediate connecting plate 3 is provided with a second output mounting hole on a side close to the second output shaft 23, and the end of the second output shaft 23 can be rotatably supported in the second output mounting hole through a connecting bearing. Through the above settings, the first output shaft 13 and the second output shaft 23 can be installed on the intermediate connecting plate 3 respectively, and the rotation of the first output shaft 13 and the second output shaft 23 can be realized.

[0070] In some embodiments, the first input mounting hole 33 and the second input mounting hole 34 are relatively distributed along the thickness direction of the intermediate connecting plate 3. Specifically, the first input mounting hole 33 and the second input mounting hole 34 are distributed on both sides of the intermediate connecting plate 3. In the thickness direction of the intermediate connecting plate 3, the first input mounting hole 33 and the second input mounting hole 34 are relatively distributed. In actual design, the first input mounting hole 33 and the second input mounting hole 34 are both constructed as circular holes extending along the thickness direction of the intermediate connecting plate 3. The center lines of the first input mounting hole 33 and the second input mounting hole 34 are distributed in parallel, and the two can be arranged opposite each other or have a certain offset distance. Such an arrangement makes the processing of the intermediate connecting plate 3 simple and convenient, and makes the input end structure of the reducer assembly 100 symmetrical and regular.

[0071] And / or, the first output mounting hole 35 and the second output mounting hole are relatively distributed along the thickness direction of the intermediate connecting plate 3. Specifically, the first output mounting hole 35 and the second output mounting hole are distributed on both sides of the intermediate connecting plate 3. In the thickness direction of the intermediate connecting plate 3, the first output mounting hole 35 and the second output mounting hole are relatively distributed. In actual design, the first output mounting hole 35 and the second output mounting hole are both constructed as circular holes extending along the thickness direction of the intermediate connecting plate 3. The center lines of the first output mounting hole 35 and the second output mounting hole are distributed in parallel, and the two can be arranged opposite to each other or have a certain offset distance. Such an arrangement makes the processing of the intermediate connecting plate 3 simple and convenient, and makes the output end structure of the reducer assembly 100 symmetrical and regular.

[0072] In some embodiments, the first input mounting hole 33 and the second input mounting hole 34 are opposite to each other and connected along the thickness direction of the middle connecting plate 3. Specifically, in this embodiment, Figure 3 As shown, in the thickness direction of the intermediate connecting plate 3, the first input mounting hole 33 and the second input mounting hole 34 are arranged opposite to each other, that is, the centers of the first input mounting hole 33 and the second input mounting hole 34 coincide, and the two are connected in the thickness direction of the intermediate connecting plate 3. In actual design, a connecting hole can be set, and the aperture of the connecting hole is smaller than the aperture of the first input mounting hole 33 and the second input mounting hole 34. In this way, through the above setting, the first input mounting hole 33 and the second input mounting hole 34 can be concentrically and connected to ensure that the central axes of the two coincide, thereby ensuring that the rotation axes of the first input shaft 12 and the second input shaft 22 coincide, so that the structures on both sides of the intermediate connecting plate 3 are symmetrical and regular.

[0073] And / or, the first output mounting hole 35 and the second output mounting hole are opposite to and connected with each other along the thickness direction of the intermediate connecting plate 3. Specifically, in this embodiment, Figure 3 As shown, in the thickness direction of the intermediate connecting plate 3, the first output mounting hole 35 and the second output mounting hole are arranged opposite to each other, that is, the centers of the first output mounting hole 35 and the second output mounting hole coincide, and the two are connected in the thickness direction of the intermediate connecting plate 3. In actual design, the first output mounting hole 35 and the second output mounting hole can be arranged in the same manner as the first input mounting hole 33 and the second input mounting hole 34 mentioned above. In this way, after the above arrangement, the first output mounting hole 35 and the second output mounting hole can be arranged concentrically and connected, which can ensure that the central axes of the two coincide, thereby ensuring that the rotation axes of the first output shaft 13 and the second output shaft 23 coincide, so that the structures on both sides of the intermediate connecting plate 3 are symmetrical and regular.

[0074] Among them, the first input mounting hole 33 and the second input mounting hole 34 and the first output mounting hole 35 and the second output mounting hole can be distributed opposite each other and are not connected to each other, which can also meet the installation requirements of the first input shaft 12, the second input shaft 22, the first output shaft 13 and the second output shaft 23.

[0075] And, it should be noted that if Figure 3 As shown, multiple reinforcing ribs are provided around the first input mounting hole 33 and the second input mounting hole 34, the first through hole 31 and the second through hole 32, and the first output mounting hole 35 and the second output mounting hole to strengthen the strength of each mounting hole and improve the structural strength of the intermediate connecting plate 3 to meet the installation requirements of each structure.

[0076] In some embodiments, the housing of the first reducer 1 and the housing of the second reducer 2 are connected as a whole via an intermediate connecting plate 3 .

[0077] Specifically, the first reducer 1 is also provided with a first housing, and the second reducer 2 is also provided with a second housing, and the first housing and the second housing are connected and fixed by an intermediate connecting plate 3, so that the first reducer 1 and the second reducer 2 are connected as a whole, and the first housing and the second housing are respectively covered on the first reducer 1 and the second reducer 2, so that the internal structures of the two reducers can be protected and dustproof, and the external structures are neat and regular. The first housing and the second housing are used to install various structures of the first reducer 1 and the second reducer 2, wherein the first motor 11 and the second motor 21 are respectively fixedly connected to the inside of the first housing and the second housing, and the other end of the first output shaft 13 is rotatably supported and connected to the second housing, and the other end of the second output shaft 23 is rotatably supported and connected to the first housing, and the two ends of the first transmission shaft 14 and the second transmission shaft 24 are respectively rotatably supported and connected to the first housing and the second housing.

[0078] The utility model also provides a vehicle.

[0079] According to the vehicle of the embodiment of the utility model, a reducer assembly 100 of any one of the above-mentioned embodiments is provided. By staggeredly distributing the input shafts and output shafts corresponding to the first reducer 1 and the second reducer 2 on both sides of the middle connecting plate 3, the power of the two reducers can be staggeredly output. The overall structure has a smaller layout space along the Y direction, and can meet the requirements of miniaturization and lightweight of the dual-motor electric bridge, reduce costs, and meet the requirements of vehicle installation.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reducer assembly, characterized in that: include: a first speed reducer and a second speed reducer, wherein the first speed reducer comprises a first motor, a first input shaft and a first output shaft which are connected in sequence, and the second speed reducer comprises a second motor, a second input shaft and a second output shaft which are connected in sequence, and the first output shaft and the second output shaft are respectively used to be connected in sequence with respect to two wheels which are oppositely distributed in a transverse direction; An intermediate connecting plate, the first input shaft and the second input shaft are relatively distributed on both sides of the intermediate connecting plate, the first output shaft and the second output shaft are relatively distributed on both sides of the intermediate connecting plate, and the first input shaft and the second output shaft are located on the same side of the intermediate connecting plate, and the second input shaft and the first output shaft are located on the same side of the intermediate connecting plate.

2. The reducer assembly according to claim 1, characterized in that: A first transmission shaft is also connected between the first input shaft and the first output shaft, the intermediate connecting plate is provided with a first penetration hole, and the first transmission shaft is penetrated through the first penetration hole; And / or, a second transmission shaft is also dynamically connected between the second input shaft and the second output shaft, the intermediate connecting plate is provided with a second penetration hole, and the second transmission shaft is penetrated through the second penetration hole.

3. The reducer assembly according to claim 2, characterized in that: The axis of the first through hole is parallel to and spaced from the axis of the second through hole.

4. The reducer assembly according to claim 2, characterized in that: In a vertical projection of the middle connecting plate, a projection of the first through hole coincides with a projection of the second through hole.

5. The reducer assembly according to claim 2, characterized in that: The first input shaft is provided with a first input gear, the first transmission shaft is provided with a first transmission gear and a second transmission gear spaced apart in the axial direction, the first output shaft is provided with a first output gear, the first input gear is meshed with the first transmission gear, the second transmission gear is meshed with the first output gear, and the first transmission gear and the second transmission gear are respectively located on both sides of the intermediate connecting plate; And / or, the second input shaft is provided with a second input gear, the second transmission shaft is provided with a third transmission gear and a fourth transmission gear spaced apart in the axial direction, the second output shaft is provided with a second output gear, the second input gear is meshed with the third transmission gear, the fourth transmission gear is meshed with the second output gear, and the third transmission gear and the fourth transmission gear are respectively located on both sides of the intermediate connecting plate.

6. The reducer assembly according to any one of claims 1 to 5, characterized in that: The intermediate connecting plate is provided with a first input mounting hole and a second input mounting hole, the end of the first input shaft is rotatably supported in the first input mounting hole, and the end of the second input shaft is rotatably supported in the second input mounting hole; And / or, the intermediate connecting plate is provided with a first output mounting hole and a second output mounting hole, the end of the first output shaft is rotatably supported in the first output mounting hole, and the end of the second output shaft is rotatably supported in the second output mounting hole.

7. The reducer assembly according to claim 6, characterized in that: The first input mounting hole and the second input mounting hole are relatively distributed along the thickness direction of the middle connecting plate; And / or, the first output mounting hole and the second output mounting hole are relatively distributed along the thickness direction of the intermediate connecting plate.

8. The reducer assembly according to claim 6, characterized in that: The first input mounting hole and the second input mounting hole are directly opposite to and connected with each other along the thickness direction of the intermediate connecting plate; And / or, the first output mounting hole and the second output mounting hole are directly opposite to and connected with each other along the thickness direction of the intermediate connecting plate.

9. The reducer assembly according to claim 1, characterized in that: The housing of the first reducer and the housing of the second reducer are connected as a whole through the middle connecting plate.

10. A vehicle, characterized in that: A reducer assembly according to any one of claims 1 to 9 is provided.

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