CN216507851U - Steady electric motor car chassis structure of dimension of integrated motor electricity bridge and battery package - Google Patents
Steady electric motor car chassis structure of dimension of integrated motor electricity bridge and battery package Download PDFInfo
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- CN216507851U CN216507851U CN202220053060.XU CN202220053060U CN216507851U CN 216507851 U CN216507851 U CN 216507851U CN 202220053060 U CN202220053060 U CN 202220053060U CN 216507851 U CN216507851 U CN 216507851U
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Abstract
The utility model provides a stable-maintaining electric vehicle chassis structure integrating an electric driving bridge with a plurality of power battery packs, which comprises at least one integrated electric driving bridge, a chassis and a plurality of power battery packs, wherein the integrated electric driving bridge is arranged on the chassis, the integrated electric driving bridge comprises an axle unit and a driving unit, the driving unit is integrated on the axle unit, and the plurality of power battery packs are arranged on the chassis along the center of the chassis and/or symmetrically. The longer transmission shaft of span has been saved, between two longerons on chassis to and driver's cabin below department practices thrift out sufficient space and arranges the part, and realizes a plurality ofly power battery package evenly arrange in on the chassis, guarantee holistic stability and reliability, improve whole car life, driving comfort and nature controlled and prevent the ability of turning on one's side.
Description
Technical Field
The utility model relates to the field of electric vehicle chassis, in particular to a stability-maintaining electric vehicle chassis structure integrating an electric drive bridge of a motor and a battery pack.
Background
Currently, for a vehicle powered by a battery, in order to improve the driving range of the vehicle and the effective utilization rate of the battery, an effective arrangement of a plurality of power battery packs in the vehicle is required. Taking a pure electric heavy truck as an example, the direct-drive motor is arranged below the cab and transmits power to the rear drive axle through the transmission shaft for power transmission, wherein the transmission shaft is a multi-section transmission shaft for power transmission between the direct-drive motor and the rear drive axle. It can be seen that the power transmission path is long and the transmission shaft arrangement needs to occupy the girder middle section truss space in the chassis, so that the space in the middle of the middle section girder cannot be designed and arranged by parts with larger size, the power transmission efficiency is reduced, the space utilization rate is also reduced, and especially the arrangement of a power battery pack is realized.
Therefore, the problems that the stability of the whole vehicle is poor and the space utilization rate of the chassis is low caused by the fact that the power battery pack is arranged behind a cab are urgently needed to be overcome. And patent No. CN201821735113.6, the patent name is a utility model patent of two speed-change electric drive axles of central motor integrated form, and it discloses to integrate driving motor on the axle, though can increase chassis space utilization, the mode that reduction gear and driving motor distribute in the axle both sides for overall structure's volume can't minimize, the increase chassis space utilization that can not maximize promptly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an integrated electric drive bridge with an axial flux motor and a vehicle.
A dimension steady electric motor car chassis structure of integrated motor electricity drive bridge and battery package includes:
at least an integrated electric drive axle, a chassis and a plurality of power battery package, integrated electric drive axle arrange in on the chassis, integrated electric drive axle includes an axle unit and a drive unit, drive unit integrate in on the axle unit, it is a plurality of power battery package is followed chassis center and/or symmetrical arrangement in on the chassis. As a preferred embodiment, the integrated electric drive bridge comprises:
a bridge unit;
a drive unit, drive unit includes a gearbox and an axial flux motor, the gearbox transmission connect in the axle unit with between the axial flux motor, the gearbox orientation the one end of axle unit length direction is provided with a connection terminal surface, axial flux motor an organic whole connect in connect on the terminal surface, so that the axial flux motor with the gearbox homonymy arrange in on the axle unit.
In a preferred embodiment, the axial-flux motor has two motor end faces, and a motor peripheral face extending between the two motor end faces, and a motor end face of the axial-flux motor is connected to the connecting end face.
In a preferred embodiment, the transmission case further has a transmission case peripheral surface extending to the periphery of the connecting end surface, and the transmission case peripheral surface is located in an area surrounded by the motor peripheral surface.
As a preferred embodiment, the axle unit includes an axle housing and two brake assemblies, two the brake assemblies are arranged at both ends of axle housing length direction, each the brake assembly includes a brake chamber respectively, the drive unit is located two between the brake chamber.
As a preferred embodiment, the drive unit and the brake chamber are arranged on the same side on the axle unit.
Preferably, the gearbox includes a housing and the axial-flux machine includes a casing, the housing and the casing being a common housing of unitary construction.
In a preferred embodiment, the distance between the two end faces of the machine defines a thickness of the axial-flux machine that is less than a diameter of the end faces of the machine.
As a preferred embodiment, the length direction of the axle unit is parallel to the thickness direction of the axial-flux motor, so that the axle unit and the drive unit are arranged side by side.
As a preferred embodiment, the drive unit further comprises a controller facing away from the gearbox and integrally connected to the axial-flux motor.
A vehicle comprising an integrated electric drive axle of at least one of the above embodiments.
Compared with the prior art, the technical scheme has the following advantages:
compared with a direct drive motor installed below a cab in the prior art, the integrated electric drive bridge directly integrates the axial flux motor, saves a transmission shaft with a long span, and saves enough space between two longitudinal beams of a chassis and below the cab to arrange components. The gearbox with axial flux motor homonymy arrange in on the axle unit, and axial flux motor has that axial dimension is little, the moment of torsion is big, light in weight and efficient advantage such as, and axial flux motor with gearbox body coupling not only reduces drive disk assembly, reduces transmission loss, can also alleviate whole weight, reduces the size, further releases the chassis space, provides great arrangement space for installation such as power battery package. It is a plurality of power battery package is followed chassis center and/or symmetrical arrangement in on the chassis, so that it is a plurality of power battery package evenly arrange in on the chassis, guarantee holistic stability and reliability, still reduce whole car barycenter height to and the load distribution of rational distribution power battery package to the vehicle front and back axle improves whole car life, driving stability, driving comfort and nature controlled and prevents the ability of turning on one's side.
The utility model is further described with reference to the following figures and examples.
Drawings
FIG. 1 is a schematic structural diagram of a stable-maintaining electric vehicle chassis structure integrating an axial-flux motor electric drive bridge and a battery pack according to the present invention;
fig. 2 is a schematic structural diagram of the integrated electric drive bridge according to the present invention.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
As shown in fig. 1 and 2, the structure of a stable electric vehicle chassis with integrated axial flux motor electric drive bridge and battery pack comprises at least an integrated electric drive bridge 100, a chassis 200 and a plurality of power battery packs 300, wherein the integrated electric drive bridge 100 is disposed on the chassis 200, the integrated electric drive bridge 100 comprises an axle unit 110 and a driving unit 120, the driving unit 120 is integrated on the axle unit 110, and the plurality of power battery packs 300 are disposed on the chassis 200 along the center and/or symmetry of the chassis 200. Said integrated electric drive axle 100 is arranged on said chassis 200 in a manner remote from the driver's cab, said integrated electric drive axle 100 comprising an axle unit 110 and a drive unit 120, said drive unit 120 comprising a gearbox 121 and said axial-flux motor 122, said gearbox 121 and said axial-flux motor 122 being integrated on said axle unit 110; a plurality of said power battery packs 300 are evenly arranged on the corresponding chassis 200 below the driver's cab and between said integrated electric drive bridge 100.
The integrated electric drive bridge 100 directly integrates the axial-flux motor 122, thereby eliminating a transmission shaft with a longer span and saving enough space for arranging components between the two longitudinal beams 210 of the chassis 200 and under the cab, compared with the prior art direct-drive motor installed under the cab. And a plurality of power battery package 300 evenly arrange the space of practicing thrift out at the chassis, arrange in the driver's cabin rear relatively, increased the loading volume of dress, make whole car have bigger loading space and load capacity, reduce whole car operation cost and improve the rate of utilization. A plurality of power battery package 300 is followed chassis 200 center and/or symmetrical arrangement in on the chassis 200, so that it is a plurality of power battery package 300 evenly arranged in on the chassis 200, guarantee holistic stability and reliability, still reduce whole car barycenter height to and the load distribution of rational distribution power battery package 300 to the vehicle front and back axle improves whole car life, driving stability, driving comfort and controllability and prevents the ability of turning on one's side.
As shown in fig. 1, the chassis 200 includes two longitudinal beams 210, the power battery pack 300 can be arranged between two longitudinal beams 210 and/or outside of the longitudinal beams 210, wherein, it is located a plurality of between two longitudinal beams 210 the power battery pack 300 is arranged along the length direction of the longitudinal beams 210, it is a plurality of to realize the power battery pack 300 is arranged along the center of the chassis 200, and it is located outside of the longitudinal beams 210 the power battery pack 300 is symmetrically arranged, it is realized that the power battery pack 300 is uniformly arranged on the chassis, thereby improving the operating stability and the stability of the whole vehicle.
In one embodiment, a plurality of power battery packs 300 are arranged between the longitudinal beams 210 along the length direction of the longitudinal beams 210, and the plurality of power battery packs 300 are arranged from the lower part of the cab to a position close to the integrated electric drive bridge 100. Preferably, the plurality of power battery packs 300 can be divided into a plurality of groups, the plurality of groups of power battery packs 300 are arranged along the length direction of the longitudinal beams 210 and are arranged between the two longitudinal beams 210, the number of the power battery packs 300 in each group is two, and the power battery packs 300 in each group are arranged in an up-and-down overlapping manner, so that the number of the power battery packs 300 between the two longitudinal beams 210 is increased, and the requirements of long-time running and high driving mileage of a pure vehicle are met.
In another embodiment, the power battery packs 300 are respectively arranged on the outer sides of the two longitudinal beams 210, and the power battery packs 300 on the outer sides of the two longitudinal beams 210 are symmetrically arranged, so that the purpose of uniformly arranging the power battery packs 300 is achieved.
In another embodiment, the number of the power battery packs 300 is ten, and the power battery packs are power battery packs 300a to 300j, respectively, wherein the power battery packs 300a and 300b, 300c and 300d, 300e and 300f, and 300g and 300h are stacked up and down, respectively, to form four groups, the four groups of the power battery packs 300 are located between the two longitudinal beams 210, respectively, and are arranged from the lower side of the cab to a position close to the integrated electric drive bridge 100, and one power battery pack, 300i and 300j, respectively, is arranged on the outer side of each of the two longitudinal beams 210, wherein the power battery packs 300i and 300j and the power battery packs 300g and 300h are located on the same straight line and are symmetrically arranged. Therefore, the requirement of high endurance mileage is ensured, and the total electric quantity can reach 350 kwh.
The integrated electric drive bridge 100 is connected to the chassis 200 by a leaf spring, and the length direction of the integrated electric drive bridge 100 is perpendicular to the length direction of the longitudinal beam 210. Wherein the two ends of the integrated electric drive axle 100 in the length direction are respectively connected with the wheel hubs, it can be seen that when the vehicle length is longer, the number of the integrated electric drive axle 100 can be multiple, such as pure electric heavy truck, which has a first shaft 410, a second shaft 420, a third shaft 430 and a fourth shaft 440 arranged from the front to the rear of the vehicle, wherein the third shaft 430 and the fourth shaft 440 are both integrated electric drive axles 100 and are arranged far away from the cab, and two integrated electric drive axles 100 are arranged side by side with the driving units 120 facing outwards.
With continued reference to fig. 1, the power battery packs 300 a-300 h are disposed at intermediate positions corresponding to the first shaft 410 to the third shaft 430, and the power battery packs 300i and 300j are disposed between the second shaft 420 and the third shaft 430.
As shown in fig. 2, the integrated electric drive bridge 100 includes:
a bridge unit 110;
a driving unit 120, the driving unit 120 includes a transmission case 121 and an axial-flux motor 122, the transmission case 121 is connected between the axle unit 110 and the axial-flux motor 122 in a transmission manner, one end of the transmission case 121 facing the length direction of the axle unit 110 is provided with a connection end surface 1211, and the axial-flux motor 122 is integrally connected to the connection end surface 1211, so that the axial-flux motor 122 and the transmission case 121 are arranged on the same side of the axle unit 110.
The gearbox 121 and the axial flux motor 122 are arranged on the axle unit 110 at the same side, the axial flux motor 122 has the advantages of small axial size, large torque, light weight, high efficiency and the like, and the axial flux motor 122 and the gearbox 121 are integrally connected, so that transmission parts are reduced, transmission loss is reduced, the overall weight is reduced, the size is reduced, the space of a chassis is further released, and a larger arrangement space is provided for the installation of power battery packs and the like.
Specifically, axial-flux motor 122 has two motor end surfaces 1221 and a motor circumferential surface 1222 extending between two motor end surfaces 1221, and a motor end surface 1221 of axial-flux motor 122 is connected to connection end surface 1211. The gearbox 121 and the axial flux motor 122 are arranged on the same side of the axle unit 110 in the length direction, and the gearbox 121 and the axial flux motor 122 are highly integrated, so that transmission parts are omitted, the overall weight is reduced, the overall size is reduced, the manufacturing cost is reduced, the overall vehicle is boosted to be light, the durability is greatly improved, and the MVH (noise, vibration and sound vibration roughness) performance can be effectively improved.
The distance between the two end faces 1221 defines the thickness of the axial-flux motor 122, the end faces 1221 are substantially circular, the thickness of the axial-flux motor 122 is smaller than the diameter of the end faces 1221, so as to embody the advantage of small axial size of the axial-flux motor 122, and the axial-flux motor 122 further has the advantages of small size, light weight, large torque, high efficiency, and the like. Axial-flux motor 122 may be a 230kw axial-flux motor with a peak torque of 1200n.m and a dimension of phi 480x 200. Each integrated electric drive axle 100 is capable of carrying 16T, with a wheel end torque capacity of 23500/56500n.m and a braking torque of 25900/36000 n.m. In addition, the gearbox adopts a 3AMT + wheel edge speed reduction mode.
As shown in fig. 2, the transmission case 121 further has a transmission case peripheral surface 1212 extending to connect to a peripheral edge of the connecting end surface 1211, and the transmission case peripheral surface 1212 is located in an area surrounded by the motor peripheral surface 1222, so as to prevent the transmission case 121 from protruding out of the axial-flux motor 122 area, thereby increasing the overall volume size. Similarly, the controller is also located in the area enclosed by the motor peripheral surface 1222.
Specifically, the extension length of the transmission case peripheral surface 1212 is the thickness of the transmission case 121, and since the axial-flux motor 122 is integrally connected to the connecting end surface 1211, the transmission case 121 and the axial-flux motor 122 are integrally connected in the thickness direction, and the length direction of the axle unit 110 is parallel to the thickness direction of the axial-flux motor 122, so that the axle unit 110 and the driving unit 120 are arranged side by side and compactly, the structure is more compact, the overall volume is further reduced, and the mounting space can be more greatly released.
As shown in fig. 2, the axle unit 110 includes an axle housing 111 and two brake assemblies 112, the two brake assemblies 122 are disposed at two ends of the axle housing 111 in the length direction, each brake assembly 112 includes a brake chamber 1121, and the driving unit 120 is located between the two brake chambers 1121.
Preferably, the driving unit 120 and the brake chambers 1121 are disposed on the same side of the axle unit 110, and referring to fig. 2, the driving unit 120 and the two brake chambers 1121 are respectively disposed on the lower side of the axle unit 110 to release the upper side of the axle unit 110 for mounting other components.
As shown in fig. 2, gearbox 121 includes a housing 1213, and axial-flux motor 122 includes a housing 1223, where housing 1213 and housing 1223 are a common housing of a unitary structure, so that axial-flux motor 122 and housing 1223 are more compact, and the overall size is further reduced. Similarly, the controller may also share a housing with the gearbox 121 and the axial-flux motor 122, respectively.
In summary, the integrated electric drive bridge 100 directly integrates the axial-flux motor 122, so that compared with the prior art direct-drive motor installed under the cab, a transmission shaft with a long span is omitted, and sufficient space is saved between the two longitudinal beams 210 of the chassis 200 and under the cab for arranging components. And a plurality of power battery package 300 evenly arrange the space of practicing thrift out at the chassis, arrange in the driver's cabin rear relatively, increased the loading volume of dress, make whole car have bigger loading space and load capacity, reduce whole car operation cost and improve the rate of utilization. And the height of the mass center of the whole vehicle is reduced, the load distribution of the power battery pack 300 to the front shaft and the rear shaft of the vehicle is reasonably distributed, and the service life, the driving stability, the driving comfort and the controllability of the whole vehicle and the rollover prevention capability are improved. In addition, the gearbox 121 and the axial flux motor 122 are arranged on the axle unit 110 at the same side, the axial flux motor 122 has the advantages of small axial size, large torque, light weight, high efficiency and the like, and the axial flux motor 122 and the gearbox 121 are integrally connected, so that not only are transmission parts reduced, transmission loss reduced, the overall weight and the size reduced, but also the space of a chassis is further released, and a larger arrangement space is provided for the installation of a power battery pack and the like.
The present invention also provides a vehicle comprising at least one integrated electric drive axle 100 of the above-described embodiment. Since the vehicle employs the integrated electric drive axle 100 of the above-described embodiment, the vehicle is provided with the beneficial effects brought by the integrated electric drive axle 100 with reference to the above-described embodiment.
The utility model further provides a pure electric heavy truck which comprises the stable-maintaining electric vehicle chassis structure integrating the axial flux motor electric drive bridge and the battery pack. The pure electric heavy truck adopts the structure of the chassis of the stability maintaining electric vehicle integrating the axial flux motor electric drive bridge and the battery pack in the embodiment, and the pure electric heavy truck refers to the embodiment by the beneficial effects brought by the structure of the chassis of the stability maintaining electric vehicle integrating the axial flux motor electric drive bridge and the battery pack.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited by the embodiments, i.e. all equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (10)
1. The utility model provides a dimension steady electric motor car chassis structure of integrated motor electric drive bridge and battery package, characterized in that, includes at least one integrated electric drive bridge (100), a chassis (200) and a plurality of power battery package (300), integrated electric drive bridge (100) arrange in on chassis (200), integrated electric drive bridge (100) include an axle unit (110) and a drive unit (120), drive unit (120) integrate in on axle unit (110), it is a plurality of power battery package (300) are followed chassis (200) center and/or symmetrical arrangement are in on chassis (200).
2. The structure of a dimensionally stable electric vehicle chassis integrating an electromechanical drive bridge and a battery pack according to claim 1, characterized in that said integrated electric drive bridge (100) comprises:
a bridge unit (110);
the driving unit (120) comprises a gearbox (121) and an axial flux motor (122), the gearbox (121) is in transmission connection between the axle unit (110) and the axial flux motor (122), one end, facing the length direction of the axle unit (110), of the gearbox (121) is provided with a connecting end surface (1211), and the axial flux motor (122) is integrally connected to the connecting end surface (1211), so that the axial flux motor (122) and the gearbox (121) are arranged on the axle unit (110) on the same side.
3. The structure of a dimensionally stable electric vehicle chassis integrating an electromechanical bridge and a battery pack according to claim 2, wherein said axial-flux electric machine (122) has two machine end faces (1221), and a machine peripheral face (1222) extending between said two machine end faces (1221), and wherein a machine end face (1221) of said axial-flux electric machine (122) is connected to said connecting end face (1211).
4. A dimensionally stable electric vehicle chassis structure integrating an electric motor bridge and a battery pack as claimed in claim 3, wherein said transmission case (121) further comprises a transmission case peripheral surface (1212) extending circumferentially around said connecting end surface (1211), said transmission case peripheral surface (1212) being located within an area surrounded by said electric motor peripheral surface (1222).
5. A dimensionally stable electric vehicle chassis structure integrating an electromechanical drive axle and a battery pack according to claim 3, characterized in that said drive unit (120) further comprises a controller facing away from said gearbox (121) and integrally connected to said axial-flux electric machine (122).
6. A stable electric vehicle chassis structure integrating an electro-mechanical drive axle and a battery pack as claimed in claim 2, wherein said axle unit (110) comprises an axle housing (111) and two brake assemblies (112), said two brake assemblies (112) are disposed at two ends of said axle housing (111) in a length direction, each of said brake assemblies (112) comprises a brake air chamber (1121), and said driving unit (120) is located between said brake air chambers (1121).
7. A dimensionally stable electric vehicle chassis structure integrating an electromechanical drive axle and a battery pack according to claim 6, characterized in that said drive unit (120) and said brake chamber (1121) are arranged on the same side of said axle unit (110).
8. A dimensionally stable electric vehicle chassis structure integrating an electric motor-driven bridge and a battery pack as claimed in claim 2, wherein said gearbox (121) comprises a housing (1213) and said axial-flux electric machine (122) comprises a housing (1223), said housing (1213) and said housing (1223) being a common housing of a unitary construction.
9. A dimensionally stable electric vehicle chassis structure integrating an electromechanical drive bridge and a battery pack according to claim 3, wherein the distance between two of said motor end faces (1221) defines the thickness of said axial-flux motor (122), said axial-flux motor (122) having a thickness less than the diameter of said motor end faces (1221).
10. A dimensionally stable electric vehicle chassis structure integrating an electromechanical drive axle and a battery pack according to claim 9, characterized in that the length direction of said axle unit (110) is parallel to the thickness direction of said axial flux motor (122), so that said axle unit (110) and said drive unit (120) are arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053060.XU CN216507851U (en) | 2022-01-07 | 2022-01-07 | Steady electric motor car chassis structure of dimension of integrated motor electricity bridge and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053060.XU CN216507851U (en) | 2022-01-07 | 2022-01-07 | Steady electric motor car chassis structure of dimension of integrated motor electricity bridge and battery package |
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| Publication Number | Publication Date |
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| CN216507851U true CN216507851U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220053060.XU Active CN216507851U (en) | 2022-01-07 | 2022-01-07 | Steady electric motor car chassis structure of dimension of integrated motor electricity bridge and battery package |
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- 2022-01-07 CN CN202220053060.XU patent/CN216507851U/en active Active
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