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CN-121989654-A - Battery pack arrangement structure based on integrated electric drive bridge and pure electric vehicle

CN121989654ACN 121989654 ACN121989654 ACN 121989654ACN-121989654-A

Abstract

The invention relates to the technical field of electric vehicle battery arrangement, in particular to a battery pack arrangement structure based on an integrated electric drive bridge and a pure electric vehicle, wherein the battery pack arrangement structure comprises a mounting box, a first driving piece, a battery pack and a second driving piece, wherein the mounting box is arranged below a vehicle seat and is rotatably connected with a vehicle chassis around a rotating shaft X; the first driving part is arranged between the mounting box and the automobile chassis and used for driving the mounting box to rotate around the rotating shaft X, the battery pack is movably arranged in the mounting box along a horizontal direction of the vertical rotating shaft X, and the second driving part is arranged between the battery pack and the mounting box and used for driving the battery pack to move along the horizontal direction. When the overall gravity center of the automobile deviates due to the distribution of passengers and the like, the position of the battery pack on the chassis can be moved and adjusted through the first driving piece and the second driving piece, so that the purpose of changing the gravity center of the whole automobile is achieved, and the driving stability and the control experience of the automobile are further ensured.

Inventors

  • ZHANG DUO
  • YANG WEITAO
  • ZHOU MIN

Assignees

  • 内蒙古圆速蒙泰智能氢电商用车有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (10)

  1. 1. A battery pack arrangement based on an integrated electrically driven bridge, comprising: A mounting box (2) arranged below the vehicle seat (20) and rotatably connected to the vehicle chassis (1) about a rotation axis X; A first driving member provided between the mounting case (2) and the vehicle chassis (1) and configured to drive the mounting case (2) to rotate about the rotation axis X; A battery pack (3) movably disposed in the mounting box (2) in a horizontal direction perpendicular to the rotation axis X; And a second driving member provided between the battery pack (3) and the mounting case (2) and configured to drive the battery pack (3) to move in the horizontal direction.
  2. 2. The battery pack arrangement structure based on the integrated electric drive bridge, as set forth in claim 1, characterized in that a circular assembly hole (4) is provided on the automobile chassis (1), the installation box (2) is of a disc structure, the installation box (2) is rotatably assembled in the assembly hole (4), the first driving piece comprises a first motor (5), a worm (6) and a worm wheel (7) structure, the first motor (5) is fixedly installed on the automobile chassis (1), the worm (6) is fixedly connected with the output end of the first motor (5), and the worm wheel (7) is fixedly arranged on the outer wall of the installation box (2) and meshed with the worm (6).
  3. 3. The battery pack arrangement structure based on the integrated electric drive bridge according to claim 2, wherein a sealing ring (8) with a hollow structure is arranged on the inner wall of the assembly hole (4), the assembly hole (4) is in sealing connection with the installation box (2) through the sealing ring (8), the sealing ring (8) is connected with a temporary storage device through a communication pipeline (9), the temporary storage device comprises a liquid storage barrel (10) and a movable sealing plug (11), a return spring (12) and a propeller (13) which are arranged in the liquid storage barrel (10), the movable sealing plug (11) is in sliding sealing connection with the inner wall of the liquid storage barrel (10) and divides the interior of the liquid storage barrel (10) into a first cavity (14) and a second cavity (15), one end of the liquid storage barrel (10) is provided with a constant pressure hole (16) which is communicated with the first cavity (14), and the propeller (13) is arranged in the second cavity (15) and is fixedly connected with the worm (6) coaxially through a connecting shaft (17) and fixedly connected with the second cavity (9).
  4. 4. The battery pack arrangement structure based on the integrated electric drive bridge according to claim 3, wherein the mounting hole (4) of the mounting box (2) is formed with a conical flange (18) in a downward extending manner, an air inlet (19) is formed in one side of the flange (18) facing the front advancing direction of the automobile, an annular air guide groove (21) is formed in the outer wall of the mounting box (2), an air inlet channel (22) and an air outlet channel (23) are respectively formed in two opposite inner side walls of the mounting box (2), the air inlet channel (22) is communicated with the air guide groove (21), and the air outlet channel (23) communicates the inside of the mounting box (2) with the outside.
  5. 5. The integrated electrically driven bridge based battery pack arrangement of claim 4, wherein the height of the bottom of the flange (18) is no less than the height of the bottom of the mounting case (2).
  6. 6. The arrangement structure of the battery pack (3) based on the integrated electric drive bridge according to claim 4, wherein two sealing rings (8) are arranged, the two sealing rings (8) are arranged at intervals along the axial direction of the assembly hole (4), and the air guide groove (21) is arranged at a position between the two sealing rings (8).
  7. 7. The battery pack arrangement structure based on the integrated electric drive bridge according to claim 5, wherein the installation box (2) is in a disc shape with a large upper part and a small lower part, the connection position of the upper part and the lower part of the installation box (2) is a first horizontal step surface (24), a second horizontal step surface (25) parallel to the first horizontal step surface (24) is arranged on the assembly hole (4), grooves (26) are formed in the first horizontal step surface (24) and the second horizontal step surface (25), and a plurality of balls (27) are arranged in the grooves (26).
  8. 8. The battery pack arrangement based on an integrated electrically driven bridge as set forth in any one of claims 1 to 7, wherein said second driving member includes two rollers (28) rotatably provided in said mounting case (2) in a horizontal direction and a conveyor belt (29) drivingly provided between the two rollers (28), the battery pack (3) of the automobile is mounted on said conveyor belt (29) through a bottom plate (30), and said second driving member further includes a second motor (31) for driving at least one of said rollers (28) to rotate.
  9. 9. The battery pack arrangement structure based on the integrated electro-drive bridge as set forth in claim 8, wherein a plurality of cylindrical air bags (32) are arranged on the inner side of the conveying belt (29) between the two rollers (28), a through hole (33) is arranged in the middle of the air bags (32), a limiting rope (34) is arranged in the through hole (33) in a penetrating mode, a plurality of beads (35) are arranged in the limiting rope (34) in a penetrating mode, and two ends of the limiting rope (34) are fixed on the installation box (2) respectively.
  10. 10. A pure electric vehicle comprising the integrated electrically driven bridge-based battery pack arrangement according to any one of claims 1 to 9.

Description

Battery pack arrangement structure based on integrated electric drive bridge and pure electric vehicle Technical Field The invention relates to the technical field of electric vehicle battery arrangement, in particular to a battery pack arrangement structure based on an integrated electric drive bridge and a pure electric vehicle. Background With the global increasing of environmental protection consciousness and the increasing of energy structure transformation demands, new energy electric vehicles are receiving attention due to the advantages of zero emission, high efficiency and the like. In the design of electric vehicles, the battery pack is responsible for storing and providing the electrical energy required for vehicle operation. Currently, it is the main current practice to fixedly mount the battery pack in a position under the chassis of the vehicle cabin or behind the rear seat. The arrangement mode is not only beneficial to optimizing the utilization efficiency of the space in the vehicle, but also can enable the whole gravity center of the automobile to be more stable, thereby improving the performance of the chassis. However, in the practical application process, it is found that, for the conventional household electric car, there is a large randomness in the number of passengers and the distribution thereof in the car. For example, when only one driver is riding, the vehicle mass distribution changes from that in a full load situation, and similarly, the center of gravity of the occupant in a different position shifts. Under the combined action of the factors, the overall gravity center distribution during the running of the vehicle is easily uneven, and the driving stability and the control experience are further affected. Therefore, we provide a battery pack arrangement structure based on an integrated electric drive bridge and a pure electric vehicle. Disclosure of Invention The invention aims to provide a battery pack arrangement structure based on an integrated electric drive bridge and a pure electric vehicle, which are used for solving the problems in the background art. The invention is realized by the following technical scheme: According to one aspect of the invention, a battery pack arrangement structure based on an integrated electric drive bridge is provided, and the battery pack arrangement structure comprises a mounting box, a first driving piece, a battery pack and a second driving piece, wherein the mounting box is arranged below a seat of an automobile and is rotatably connected with an automobile chassis around a rotation axis X, the first driving piece is arranged between the mounting box and the automobile chassis and is used for driving the mounting box to rotate around the rotation axis X, the battery pack is movably arranged in the mounting box along a horizontal direction perpendicular to the rotation axis X, and the second driving piece is arranged between the battery pack and the mounting box and is used for driving the battery pack to move along the horizontal direction. Optionally, be provided with circular shape pilot hole on the vehicle chassis, the mounting box is the disc structure, the rotatable assembly of mounting box in the pilot hole, first driving piece includes first motor, worm and worm wheel structure, first motor fixed mounting is in on the vehicle chassis, the worm with the output fixed connection of first motor, the worm wheel is fixed to be set up on the outer wall of mounting box and with the worm meshes mutually. Optionally, the mounting hole inner wall is provided with the sealing washer of hollow structure, the mounting hole passes through the sealing washer with sealing connection of mounting box, the sealing washer passes through a communication pipeline and connects a temporary storage device, temporary storage device includes the stock solution section of thick bamboo and locates movable sealing plug, reset spring and the screw in the stock solution section of thick bamboo, movable sealing plug slidable sealing connection in the inner wall of stock solution section of thick bamboo and with stock solution section of thick bamboo internal separation becomes first cavity and second cavity, stock solution section of thick bamboo one end be provided with the constant voltage hole that first cavity is linked together, the screw is located the second cavity and through a connecting axle with coaxial fixed connection of worm, the communication pipeline with the second cavity is connected. Optionally, the mounting hole of the mounting box extends downwards to form a conical flange, an air inlet is formed in one side of the flange facing the front direction of the automobile, an annular air guide groove is formed in the outer wall of the mounting box, an air inlet channel and an air exhaust channel are respectively formed in two opposite inner side walls of the mounting box, the air inlet channel is communicated with the air guide groove, and the air