Battery pack of vehicle and vehicle

Abstract

The invention discloses a vehicle battery pack and a vehicle, and relates to the technical field of vehicles, the battery pack comprises a box body and a plurality of battery monomers, the box body forms a plurality of mounting cavities, the plurality of mounting cavities are arranged along the first direction of the battery pack, the plurality of battery monomers are respectively arranged in the corresponding mounting cavities, the box body also forms a first space, and the first space is arranged in the first space. A first space is formed between at least two adjacent mounting cavities, the first space penetrates through the box body in the second direction of the battery pack, and the first direction, the second direction and the height direction of the battery pack are perpendicular to one another. The first space is arranged and penetrates through the box body in the second direction of the battery pack, so that a transmission shaft and an exhaust pipeline of a vehicle can be assembled in the first space, the space utilization rate of battery pack arrangement is improved, the space occupied by the battery pack for a luggage compartment or a rear seat is reduced, and the battery pack is simple in structure, easy and convenient to assemble and low in cost. And the production cost of the vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a battery pack of a vehicle and a vehicle having the battery pack. Background Art

[0002] Among the related technologies, with the development of new energy vehicles, the technical solutions for longitudinal hybrid vehicles have received widespread attention from automobile companies around the world. Because the drive shaft of the longitudinal vehicle runs through the bottom of the floor tunnel along the length of the vehicle, it has a great impact on the layout and structure of the power battery of the hybrid vehicle.

[0003] The power battery of a hybrid vehicle is placed in the luggage compartment to avoid the transmission shaft, but the battery placement in the luggage compartment will occupy the luggage compartment space, resulting in a higher luggage compartment opening, and will also make it difficult to arrange the last row of seats in vehicles with three or more rows of seats. If the battery is placed under the floor of the second row of seats, the battery needs to be set up as a left-right split structure or a special-shaped structure to avoid the transmission shaft, the battery pack structure is complex, and the vehicle production cost is high. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a battery pack for a vehicle, which reduces the space occupied by the battery pack in the luggage compartment or the rear seat space, thereby reducing the production cost of the vehicle.

[0005] The present invention further provides a vehicle.

[0006] A battery pack for a vehicle according to an embodiment of the present invention comprises: a case and a plurality of battery cells, wherein the case is formed with a plurality of mounting cavities, the plurality of mounting cavities are arranged along a first direction of the battery pack, the plurality of battery cells are respectively arranged in corresponding mounting cavities, the case is further formed with a first space, at least two adjacent mounting cavities have the first space, the first space penetrates the case along a second direction of the battery pack, and the first direction, the second direction and the height direction of the battery pack are perpendicular to each other.

[0007] According to the battery pack of the vehicle in the embodiment of the present invention, by setting a first space, and the first space passes through the box body along the second direction of the battery pack, the transmission shaft and the exhaust pipe can be assembled in the first space, which is beneficial to improve the space utilization rate of the battery pack layout and reduce the battery pack's occupancy of the luggage compartment space or the rear seat space. In addition, the battery pack has a simple structure and is easy to assemble, which is beneficial to reducing the production cost of the vehicle.

[0008] In some embodiments of the present invention, the box body includes: a lower box body and multiple upper box bodies, the multiple upper box bodies are arranged above the lower box body and fixedly connected to the lower box body, each upper box body and the lower box body jointly define an installation cavity, and the multiple upper box bodies are spaced apart in sequence along the first direction so that any two adjacent upper box bodies and the lower box bodies jointly define a first space.

[0009] In some embodiments of the present invention, the upper box body defines a mounting groove with an open lower end, and the lower box body covers the open end of the mounting groove.

[0010] In some embodiments of the present invention, the upper box body includes: a top cover and a side wall, the side wall is located between the top cover and the lower box body, the side wall is annular to form a first opening and a second opening that are opposite and spaced apart, the first opening is located below the second opening, the first opening is configured as the open end of the mounting groove, and the top cover is detachably provided on the side wall to open or close the second opening.

[0011] In some embodiments of the present invention, along the first direction, both ends of the lower box body are provided with first mounting portions, and the first mounting portions are used for assembly with a vehicle body.

[0012] In some embodiments of the present invention, the first mounting portion and the lower box body are integrally formed.

[0013] In some embodiments of the present invention, second mounting portions are provided at both ends of the upper box along the second direction, and the second mounting portions are used for assembly with a vehicle body.

[0014] In some embodiments of the present invention, an upper end of the first space is open.

[0015] A vehicle according to an embodiment of the present invention comprises: a battery pack, the battery pack being the battery pack of the vehicle of the above embodiment, the first direction being parallel to the width direction of the vehicle, and the second direction being parallel to the length direction of the vehicle; a vehicle body, the vehicle body comprising a floor and two sill beams, along the first direction, the two sill beams are arranged on both sides of the floor, and the two sill beams are fixedly connected to the floor, and the box is located under the floor and fixedly connected to the sill beams.

[0016] In some embodiments of the present invention, the box is also fixedly connected to the floor.

[0017] In some embodiments of the present invention, the vehicle further includes: an exhaust muffler, which is located at the front side of the battery pack along the second direction, and the exhaust muffler is staggered with the first space.

[0018] In some embodiments of the present invention, the vehicle further includes: an exhaust pipe and a transmission shaft, both of which extend along the second direction, the front end of the exhaust pipe is connected to the exhaust muffler, and both of which are arranged in the first space.

[0019] In some embodiments of the present invention, the transmission shaft is located above the exhaust pipe.

[0020] In some embodiments of the present invention, the exhaust pipe and the battery pack are spaced apart, and a heat insulation structure is provided between the exhaust pipe and the battery pack.

[0021] In some embodiments of the present invention, the exhaust pipe is spaced apart from the drive shaft.

[0022] In some embodiments of the present invention, at least a portion of the battery pack is installed between two door sill beams, and an inner side wall of at least one door sill beam is spaced apart from the battery pack to form a second space.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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:

[0025] Figure 1 is a schematic diagram of the arrangement of a battery pack on a vehicle according to an embodiment of the present invention;

[0026] Figure 2 is a cross-sectional view of a battery pack arranged on a vehicle according to an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] Battery pack 100;

[0030] Box 1;

[0031] Installation cavity 11; first space 12;

[0032] Lower box 13; first mounting portion 131;

[0033] Upper box body 14; top cover 141; side wall 142; second mounting portion 143;

[0034] Vehicle 200;

[0035] Car body 2; floor 21; door sill beam 22; second space 221;

[0036] Exhaust muffler 3; exhaust pipe 4; transmission shaft 5; transmission 6; fuel tank 7. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which 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.

[0038] Reference below Figure 1-Figure 3 A battery pack 100 according to an embodiment of the present invention is described.

[0039] like Figure 1 and Figure 2 As shown, the battery pack 100 of the vehicle 200 according to an embodiment of the present invention includes: a box body 1 and a plurality of battery cells, the box body 1 is formed with a plurality of installation cavities 11, the plurality of installation cavities 11 are arranged along a first direction of the battery pack 100, and the plurality of battery cells are respectively arranged in the corresponding installation cavities 11, the box body 1 is further formed with a first space 12, and the first space 12 is provided between at least two adjacent installation cavities 11, and the first space 12 penetrates the box body 1 along a second direction of the battery pack 100, and the first direction, the second direction and the height direction of the battery pack 100 are perpendicular to each other.

[0040] Among them, multiple battery cells can be provided, for example: the battery cells can be provided with but not limited to two, three, four or more, and multiple battery cells can power the vehicle 200. Multiple battery cells can be assembled in the box 1 to reduce the impact of the external environment on the battery cells, which is conducive to the battery cells being able to reliably supply power in the box 1. The box 1 is formed with a mounting cavity 11, and the mounting cavity 11 can be provided with multiple, for example: the mounting cavity 11 can be provided with but not limited to two, three, four or more. Each mounting cavity 11 can be provided with a certain number of battery cells.

[0041] The plurality of mounting cavities 11 are arranged along a first direction of the battery pack 100. Figure 1 The Y direction in the diagram is the width direction of the vehicle 200. Multiple battery cells are respectively arranged in corresponding installation cavities 11, so that the battery cells can stably play a power supply role in the corresponding installation cavities 11, reduce the impact of the external environment on the battery cells, and thus increase the service life of the battery cells. The box body 1 is also formed with a first space 12, and the first space 12 can provide an assembly position for other parts of the vehicle 200. There is a first space 12 between at least two adjacent installation cavities 11, and the first space 12 penetrates the box body 1 along the second direction of the battery pack 100. The second direction is Figure 1 The X direction in FIG. 1 is the length direction of the vehicle 200. The first direction, the second direction, and the height direction of the battery pack 100 are perpendicular to each other, that is, the X direction, the Y direction, and the height direction of the battery pack 100 are perpendicular to each other.

[0042] The first space 12 penetrates the box body 1 along the second direction of the battery pack 100, so that the structure of the first space 12 can be reasonably set, so that the first space 12 can reliably avoid other components of the vehicle 200. For example, the transmission shaft 5, the exhaust pipe 4, etc. can be assembled in the first space 12, reducing the risk of interference between the transmission shaft 5, the exhaust pipe 4 and other components and the battery pack 100, which is beneficial to improving the space utilization rate of the battery pack 100, thereby reducing the occupation of the luggage compartment space or the rear seat space by the battery pack 100. In addition, the battery pack 100 has a simple structure and is easy to assemble, which is beneficial to reducing the production cost of the vehicle 200.

[0043] Specifically, the battery pack 100 is mounted on the bottom of the vehicle 200 along the height direction of the vehicle 200. The box 1 of the battery pack 100 is formed with a plurality of mounting cavities 11. By respectively arranging a plurality of battery cells in corresponding mounting cavities 11 and assembling the box 1 on the bottom of the vehicle 200, the effect of assembling the battery pack 100 on the vehicle 200 can be achieved. The plurality of mounting cavities 11 are arranged along the first direction of the battery pack 100, and a first space 12 is provided between at least two adjacent mounting cavities 11. By setting the first space 12 to penetrate the box 1 along the second direction of the battery pack 100, the transmission shaft 5 and the exhaust pipe 4 can be smoothly assembled in the first space 12, thereby improving the rationality of the arrangement of the battery pack 100 and surrounding components.

[0044] Therefore, by setting the first space 12, and the first space 12 passing through the box body 1 along the second direction of the battery pack 100, the transmission shaft 5 and the exhaust pipe 4 can be assembled in the first space 12, which is beneficial to improve the space utilization rate of the battery pack 100 and reduce the occupation of the luggage compartment space or the rear seat space by the battery pack 100. In addition, the battery pack 100 has a simple structure and is easy to assemble, which is beneficial to reducing the production cost of the vehicle 200.

[0045] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the box body 1 may include: a lower box body 13 and multiple upper boxes 14, the multiple upper boxes 14 are arranged above the lower box body 13 and fixedly connected to the lower box body 13, each upper box body 14 and the lower box body 13 jointly define an installation cavity 11, and the multiple upper boxes 14 are spaced apart in sequence along the first direction, so that any two adjacent upper boxes 14 and the lower boxes 13 jointly define a first space 12.

[0046] Among them, along the height direction of the battery pack 100, that is, Figure 2In the Z direction, the upper box body 14 is arranged above the lower box body 13. It should be noted that the height direction of the battery pack 100 is the height direction of the vehicle 200. There can be multiple upper boxes 14, for example: there can be but not limited to two, three or more upper boxes 14, and the multiple upper boxes 14 are fixedly connected to the lower box body 13. As some embodiments of the present application, the multiple upper boxes 14 are fixedly connected to the lower box body 13 by bolts. As some embodiments of the present application, the multiple upper boxes 14 are fixedly connected to the lower box body 13 by snap-fitting.

[0047] Each upper box 14 and the lower box 13 jointly define the installation cavity 11, and further, any upper box 14 can jointly define the installation cavity 11 with the lower box 13. Along the first direction, the plurality of upper boxes 14 are sequentially spaced apart, so that any two adjacent upper boxes 14 and the lower box 13 jointly define the first space 12, so that the surrounding components can be assembled in the first space 12, which is conducive to the box 1 avoiding the surrounding components, thereby improving the rationality of the position arrangement of the battery pack 100 and the surrounding components.

[0048] In some embodiments of the present invention, Figure 3 As shown, the upper box body 14 defines a mounting groove (not shown in the figure) with an open lower end, and the lower box body 13 covers the open end of the mounting groove.

[0049] Among them, the upper box body 14 defines a mounting groove, and the lower end of the mounting groove is open along the height direction of the battery pack 100, that is, the mounting groove is open toward the lower box body 13, and the lower box body 13 can cover the open end of the mounting groove to make the mounting groove closed, thereby achieving the effect of defining the mounting cavity 11, thereby reducing the impact of the external environment on the battery cell, which is beneficial for the battery cell to work stably in the mounting cavity 11, and further helps to extend the service life of the battery cell.

[0050] In some embodiments of the present invention, Figure 3 As shown, the upper box body 14 may include: a top cover 141 and a side wall 142, the side wall 142 is located between the top cover 141 and the lower box body 13, the side wall 142 is annular to form a first opening and a second opening that are opposite and spaced apart, the first opening is located below the second opening, the first opening is configured as an open end of a mounting groove, and the top cover 141 is detachably provided on the side wall 142 to open or close the second opening.

[0051] Wherein, the side wall 142 is located between the top cover 141 and the lower box body 13, and the side wall 142, the top cover 141 and the lower box body 13 jointly define the installation cavity 11. The side wall 142 can be constructed in an annular shape, and the annular side wall 142 can form a first opening and a second opening. Along the height direction of the box body 1, the first opening and the second opening are arranged oppositely and spaced apart, and the first opening is located below the second opening, and the first opening is constructed as the open end of the installation groove of the above embodiment. As some embodiments of the present application, the top cover 141 and the side wall 142 can be connected by bolts so that the top cover 141 can be detachably arranged on the side wall 142. As some embodiments of the present application, the top cover 141 and the side wall 142 can be connected by snap-fitting so that the top cover 141 can be detachably arranged on the side wall 142, so that the top cover 141 can open or close the second opening.

[0052] Specifically, the side wall 142 and the lower box body 13 are connected by bolts so that the lower box body 13 covers the first opening. The battery cell can be assembled in the installation cavity 11 from the second opening, and the top cover 141 can be connected to the side wall 142 by bolts so that the top cover 141 can close the second opening, so that the battery cell can work stably in the installation cavity 11. When a battery cell fails, the top cover 141 can be removed from the side wall 142 so that the top cover 141 can open the second opening, so that it is convenient for maintenance personnel to repair or replace the battery cell, thereby extending the service life of the battery pack 100.

[0053] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, along the first direction, both ends of the lower box body 13 are provided with first mounting portions 131 , and the first mounting portions 131 are used for being assembled with the body 2 of the vehicle 200 .

[0054] Among them, along the first direction, the lower box body 13 has two opposite ends, and the two ends of the lower box body 13 are provided with a first mounting portion 131, and the first mounting portion 131 is used to be assembled with the body 2 of the vehicle 200. As some embodiments of the present application, the first mounting portion 131 and the body 2 of the vehicle 200 can be connected by bolts. For example: the first mounting portion 131 can be formed with a through hole, and the bolt is inserted into the through hole and screwed with the body 2 of the vehicle 200, so that the box body 1 can be assembled with the body 2. As some embodiments of the present application, the first mounting portion 131 and the body 2 of the vehicle 200 can be connected by snapping, so that the box body 1 can be assembled with the body 2 of the vehicle 200 through the first mounting portion 131, thereby reducing the difficulty of assembling the box body 1 and improving the assembly efficiency of the vehicle 200.

[0055] As some embodiments of the present application, the lower box 13 can be constructed as a thickened plate-like structure, which is beneficial to improving the torsional rigidity and side impact resistance of the vehicle body 2. Furthermore, the lower box 13 is assembled to the vehicle body 2 through the first mounting portion 131, so that the lower box 13 can support the battery cell, thereby improving the safety of the battery cell.

[0056] In some embodiments of the present invention, Figure 3 As shown, the first mounting portion 131 and the lower box body 13 are integrally formed.

[0057] Among them, in some embodiments of the present invention, the first mounting portion 131 and the lower box body 13 are integrally formed, that is, the first mounting portion 131 and the lower box body 13 are constructed as an integrally formed part, and the integrally formed part has good structural strength. By integrally forming the first mounting portion 131 and the lower box body 13, the connection reliability of the first mounting portion 131 and the lower box body 13 can be improved, and the probability of the connection between the first mounting portion 131 and the lower box body 13 breaking can be reduced, thereby improving the structural stability of the box body 1, reducing the risk of damage to the battery pack 100 due to the connection between the first mounting portion 131 and the lower box body 13 breaking, and thus improving the service life of the battery pack 100. Furthermore, the integral formation of the first mounting portion 131 and the lower box body 13 can reduce the number of molds in the processing of the box body 1, thereby reducing the production cost of the box body 1.

[0058] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, along the second direction, the two ends of the upper box body 14 are provided with second mounting portions 143 , and the second mounting portions 143 are used for being assembled with the body 2 of the vehicle 200 .

[0059] Among them, along the second direction, any upper box body 14 has two opposite ends, and any two ends of the upper box body 14 are provided with a second mounting portion 143, and the second mounting portion 143 is used to be assembled with the body 2 of the vehicle 200. As some embodiments of the present application, the second mounting portion 143 and the upper box body 14 can be connected by bolts. As some embodiments of the present application, the second mounting portion 143 and the upper box body 14 can be welded. As some embodiments of the present application, the second mounting portion 143 and the body 2 of the vehicle 200 can be connected by bolts. For example: the second mounting portion 143 can be formed with a through hole, and the bolt is inserted into the through hole and screwed with the body 2 of the vehicle 200, so that the box body 1 can be assembled with the body 2. As some embodiments of the present application, the second mounting portion 143 and the body 2 of the vehicle 200 can be connected by snapping, so that the box body 1 can be assembled with the body 2 of the vehicle 200 through the second mounting portion 143, thereby reducing the difficulty of assembling the box body 1 and improving the assembly efficiency of the vehicle 200. Furthermore, the box body 1 is assembled on the vehicle 200 only by the first mounting portion 131 and the second mounting portion 143 , which can reduce the fixing points of the battery pack 100 and the vehicle 200 , and is conducive to reducing the difficulty of disassembly and assembly of the battery pack 100 , thereby improving the maintenance efficiency and replacement efficiency of the battery pack 100 .

[0060] In some embodiments of the present invention, Figure 3 As shown, the upper end of the first space 12 is open.

[0061] Among them, the upper end of the first space 12 is open along the height direction of the battery pack 100. Such a setting can make the setting of the first space 12 reasonable, which is conducive to assembling the transmission shaft 5, exhaust pipe 4 and other components in the first space 12 through the open end. Moreover, by opening the upper end of the first space 12, after the transmission shaft 5, exhaust pipe 4 and other components are assembled in the first space 12, the transmission shaft 5, exhaust pipe 4 and other components can be assembled on the upper side of the lower box body 13 along the height direction of the battery pack 100, which is conducive to the lower box body 13 to support the transmission shaft 5, exhaust pipe 4 or other components. When the vehicle 200 is traveling on a bumpy road, the risk of the transmission shaft 5, exhaust pipe 4 or other components falling off from the vehicle 200 can be reduced, thereby improving the driving safety of the vehicle 200.

[0062] like Figure 1 and Figure 2As shown, a vehicle 200 according to an embodiment of the present invention includes: a battery pack 100, the battery pack 100 is the battery pack 100 of the vehicle 200 of the above embodiment, the first direction is parallel to the width direction of the vehicle 200, and the second direction is parallel to the length direction of the vehicle 200; a body 2, the body 2 includes a floor 21 and two sill beams 22, along the first direction, the two sill beams 22 are arranged on both sides of the floor 21, and the two sill beams 22 are fixedly connected to the floor 21, and the box 1 is located below the floor 21 and is fixedly connected to the sill beam 22.

[0063] The battery pack 100 is the battery pack 100 of the vehicle 200 of the above embodiment. The battery pack 100 has a simple structure and light weight, which is beneficial to the lightweight design of the vehicle 200 and also helps to reduce the process complexity of the battery pack 100, thereby reducing the production cost of the vehicle 200. Figure 2 In the Y direction, the floor 21 has two opposite sides, and two threshold beams 22 are respectively arranged on the two sides of the floor 21, and the two threshold beams 22 are fixedly connected to the floor 21. As some embodiments of the present application, the two threshold beams 22 and the floor 21 are fixedly connected by bolts. As some embodiments of the present application, the two threshold beams 22 and the floor 21 are fixedly connected by a clamping method.

[0064] In the height direction of the vehicle 200, the box 1 is located below the floor 21. Further, in the length direction of the vehicle 200, the floor 21 includes a front floor, a middle floor, and a rear floor. In the height direction of the vehicle 200, the box 1 is located below the middle floor of the vehicle body 2. And the box 1 is fixedly connected to the threshold beam 22. As some embodiments of the present application, the box 1 is fixedly connected to the threshold beam 22 by bolts. As some embodiments of the present application, the box 1 is fixedly connected to the threshold beam 22 by a clamping method.

[0065] Furthermore, the box body 1 can be fixedly connected to the door sill beam 22 through the first mounting portion 131. For example, the first mounting portion 131 can be formed with a through hole, and a bolt is passed through the through hole and screwed to the door sill beam 22. This can achieve the effect of assembling the box body 1 to the door sill beam 22, so that the battery pack 100 is assembled to the vehicle 200, which is conducive to achieving the effect of the battery pack 100 supplying power to the vehicle 200.

[0066] Specifically, the transmission shaft 5 and the exhaust pipe 4 are both installed in the first space 12 to reduce the risk of interference between the battery pack 100 and peripheral components such as the transmission shaft 5 and the exhaust pipe 4. The first mounting portion 131 is connected to the door sill beam 22 by bolts, so that the box body 1 is installed on the vehicle 200 through the first mounting portion 131.

[0067] Therefore, by setting the first space 12, and the first space 12 passing through the box body 1 along the second direction of the battery pack 100, the transmission shaft 5 and the exhaust pipe 4 can be assembled in the first space 12, which is beneficial to improve the space utilization rate of the battery pack 100 and reduce the occupation of the luggage compartment space or the rear seat space by the battery pack 100. In addition, the battery pack 100 has a simple structure and is easy to assemble, which is beneficial to reducing the production cost of the vehicle 200.

[0068] In some embodiments of the present invention, Figure 1 As shown, the box body 2 is also fixedly connected to the floor 21 .

[0069] Among them, as some embodiments of the present application, the box body 1 and the floor 21 can be fixedly connected by bolts. As some embodiments of the present application, the box body 1 and the floor 21 can be fixedly connected by a snap-on method. Further, the box body 1 can be fixedly connected to the floor 21 through the second mounting portion 143. For example, the second mounting portion 143 and the floor 21 can be formed with through holes. Bolts are inserted through the through holes of the second mounting portion 143 and the through holes of the floor 21, and are screwed with corresponding nuts. This can achieve the effect of assembling the box body 1 to the floor 21. By fixing the box body 1 to the door sill beam 22 and the floor 21, the connection reliability between the box body 1 and the vehicle 200 can be improved, so that the battery pack 100 can be reliably assembled to the vehicle 200, thereby improving the driving safety of the vehicle 200.

[0070] In some embodiments of the present invention, Figure 1 As shown, the vehicle 200 may further include: an exhaust muffler 3 , which is located at the front side of the battery pack 100 along the second direction, and the exhaust muffler 3 is staggered with the first space 12 .

[0071] Among them, the exhaust muffler 3 can muffle the exhaust pipe 4 of the vehicle 200, which is beneficial to reducing the noise of the vehicle 200, thereby improving the comfort of the passengers. Along the second direction, the exhaust muffler 3 is located at the front side of the battery pack 100, and the exhaust muffler 3 is staggered with the first space 12. Such a setting can make the position of the exhaust muffler 3 reasonably set, that is, the exhaust muffler 3 is set at the front position of the vehicle 200, so that the exhaust muffler 3 can muffle the noise at the upstream position, which is beneficial to improve the muffler effect of the exhaust muffler 3. In addition, after the larger parts are assembled in the first space 12, part of the parts may extend out of the first space 12. By staggering the exhaust muffler 3 with the first space 12, the exhaust muffler 3 can avoid the parts assembled in the first space 12, so that the exhaust muffler 3 is arranged close to the two sides of the vehicle along the width direction, reducing the risk of interference between the exhaust muffler 3 and the parts assembled in the first space 12, so that the vehicle 200 can be assembled smoothly.

[0072] In some embodiments of the present invention, Figure 1 As shown, the vehicle 200 may further include: an exhaust pipe 4 and a transmission shaft 5 , both of which extend along the second direction, the front end of the exhaust pipe 4 is connected to the exhaust muffler 3 , and both of which are arranged in the first space 12 .

[0073] Among them, along the length direction of the vehicle 200, the transmission shaft 5 has a relative front end and rear end. As some embodiments of the present application, the vehicle 200 may also include a transmission 6. As some embodiments of the present application, the front end of the transmission shaft 5 is connected to the transmission 6 in a transmission manner, and the transmission shaft 5 can transmit the power output by the transmission 6 to the wheel end of the vehicle, so that the vehicle 200 can travel smoothly. Along the extension direction of the exhaust pipe 4, the front end of the exhaust pipe 4 is connected to the exhaust muffler 3. As some embodiments of the present application, the rear end of the exhaust pipe 4 is connected to the atmosphere. The gas generated by the engine can be discharged to the atmosphere through the exhaust pipe 4 after being silenced by the exhaust muffler 3. The exhaust pipe 4 and the transmission shaft 5 both extend in the second direction. When the battery pack 100 is assembled on the vehicle 200, by arranging the exhaust pipe 4 and the transmission shaft 5 in the first space 12, the risk of interference between the exhaust pipe 4, the transmission shaft 5 and the box 1 can be reduced, thereby achieving the effect of smooth assembly of the exhaust pipe 4, the transmission shaft 5 and the box 1.

[0074] As some embodiments of the present application, the vehicle 200 may further include a fuel tank 7, which is arranged at the rear of the battery pack 100. As some embodiments of the present application, the transmission 6 is arranged corresponding to the first space 12, so that the transmission shaft 5 assembled in the first space 12 can be smoothly connected to the transmission 6. As some embodiments of the present application, the exhaust pipe 4 and the exhaust muffler 3 can be set as two, one exhaust pipe 4 and one exhaust muffler 3 are arranged correspondingly, so that the exhaust muffler 3 can muffle the exhaust pipe 4 corresponding thereto, and along the width direction of the vehicle 200, the two exhaust mufflers 3 are respectively arranged on both sides of the transmission 6. By setting two exhaust pipes 4 and two exhaust mufflers 3, the battery pack 100 can be equipped with a vehicle 200 with a large displacement engine with dual exhaust ports, which is conducive to improving the versatility of the battery pack 100.

[0075] In some embodiments of the present invention, Figure 2 As shown, the transmission shaft 5 is located above the exhaust pipe 4 .

[0076] Among them, along the height direction of the vehicle 200, the transmission shaft 5 is located above the exhaust pipe 4. Such an arrangement can make the positions of the transmission shaft 5 and the exhaust pipe 4 arranged reasonably, which is conducive to keeping the exhaust pipe 4 away from the floor 21 of the vehicle 200, thereby reducing the risk of the temperature and noise of the exhaust pipe 4 being transmitted to the vehicle, and further improving the comfort of the vehicle 200. Furthermore, the transmission shaft 5 is located above the exhaust pipe 4, so that the transmission shaft 5 and the exhaust pipe 4 can be arranged in a staggered manner in height. Compared with the side-by-side arrangement of the transmission shaft 5 and the exhaust pipe 4, the space occupied by the transmission shaft 5 and the exhaust pipe 4 in width can be saved, and the arrangement of the transmission shaft 5 and the exhaust pipe 4 is compact, thereby reducing the size of the first space 12 along the width direction of the vehicle 200, so as to improve the structural stability of the box body 1.

[0077] In some embodiments of the present invention, Figure 2 As shown, the exhaust pipe 4 and the battery pack 100 are spaced apart, and a heat insulation structure (not shown in the figure) is provided between the exhaust pipe 4 and the battery pack 100.

[0078] Among them, as some embodiments of the present application, the insulation structure can be constructed of glass fiber material. As some embodiments of the present application, the insulation structure can be constructed of ceramic fiber material. By setting the exhaust pipe 4 and the battery pack 100 apart and providing an insulation structure between the exhaust pipe 4 and the battery pack 100, the risk of the temperature of the exhaust pipe 4 being transferred to the battery pack 100 can be reduced, which is conducive to the battery pack 100 operating within a safe temperature range, reducing the risk of the temperature of the exhaust pipe 4 being transferred to the battery pack 100, resulting in the battery pack 100 being overheated or even exploding, thereby improving the safety of the vehicle 200.

[0079] In some embodiments of the present invention, Figure 2 As shown, the exhaust pipe 4 and the transmission shaft 5 are spaced apart.

[0080] Among them, the exhaust pipe 4 and the drive shaft 5 are arranged separately, so that the arrangement of the exhaust pipe 4 and the drive shaft 5 is reasonable, and the risk of the temperature of the exhaust pipe 4 being transferred to the drive shaft 5 is reduced. It can also allow the drive shaft 5 to have a certain vibration space, thereby reducing the risk of interference between the exhaust pipe 4 and the drive shaft 5 due to working vibration of the drive shaft 5, thereby reducing the risk of collision or even damage between the exhaust pipe 4 and the drive shaft 5, which is conducive to further improving the safety of the vehicle 200.

[0081] In some embodiments of the present invention, Figure 2 As shown, at least a portion of the battery pack 100 is installed between two door sill beams 22 , and the inner side wall 142 of at least one door sill beam 22 is spaced apart from the battery pack 100 to form a second space 221 .

[0082] In some embodiments of the present application, part of the battery pack 100 is installed between two sill beams 22 along the width direction of the vehicle 200. In some embodiments of the present application, all structures of the battery pack 100 are installed between two sill beams 22 along the width direction of the vehicle 200. In the width direction of the vehicle 200, the inner side wall of at least one sill beam 22 is spaced apart from the battery pack 100 to form a second space 221 between the inner side wall of the sill beam 22 and the battery pack 100. The width of the second space 221 along the first direction may be 40-70 mm, for example, the width of the second space 221 along the first direction may be, but is not limited to, 40 mm, 55 mm, or 70 mm.

[0083] As some embodiments of the present application, the pipeline harness and the like of the vehicle 200 can be assembled in the second space 221, and the second space 221 can also be constructed as a collision buffer space. When a side collision occurs in the vehicle 200, the sill beam 22 collapses toward the second space 221, which helps to reduce the risk of the collision force being directly transmitted to the battery pack 100, thereby reducing the risk of the battery pack 100 exploding due to the impact force, thereby further improving the safety of the vehicle 200.

[0084] 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 present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 battery pack for a vehicle, characterized in that: include: A box body and a plurality of battery cells, the box body is formed with a plurality of installation cavities, the plurality of installation cavities are arranged along a first direction of the battery pack, the plurality of battery cells are respectively arranged in the corresponding installation cavities, the box body is further formed with a first space, at least two adjacent installation cavities have the first space, the first space penetrates the box body along a second direction of the battery pack, and the first direction, the second direction and the height direction of the battery pack are perpendicular to each other.

2. The battery pack for a vehicle according to claim 1, characterized in that: The box body includes: a lower box body and multiple upper boxes, the multiple upper boxes are arranged above the lower box body and fixedly connected to the lower box body, each upper box body and the lower box body jointly define the installation cavity, and the multiple upper boxes are spaced apart in sequence along the first direction, so that any two adjacent upper boxes and the lower boxes jointly define the first space.

3. The battery pack for a vehicle according to claim 2, characterized in that: The upper box body defines a mounting groove with an open lower end, and the lower box body covers the open end of the mounting groove.

4. The battery pack for a vehicle according to claim 2, characterized in that: The upper box body includes: a top cover and a side wall, the side wall is located between the top cover and the lower box body, the side wall is annular to form a first opening and a second opening that are opposite and spaced apart, the first opening is located below the second opening, the first opening is configured as the open end of the mounting groove, and the top cover is detachably provided on the side wall to open or close the second opening.

5. The battery pack for a vehicle according to claim 2, characterized in that: Along the first direction, two ends of the lower box body are provided with first mounting parts, and the first mounting parts are used for being assembled with the body of the vehicle.

6. The battery pack for a vehicle according to claim 5, characterized in that: The first mounting portion and the lower box body are integrally formed.

7. The battery pack for a vehicle according to claim 2, characterized in that: Along the second direction, two ends of the upper box body are provided with second mounting parts, and the second mounting parts are used for being assembled with the body of the vehicle.

8. The battery pack for a vehicle according to any one of claims 1 to 7, characterized in that: The upper end of the first space is open.

9. A vehicle, characterized in that: include: A battery pack, wherein the battery pack is a battery pack for a vehicle according to any one of claims 1 to 8, wherein the first direction is parallel to a width direction of the vehicle, and the second direction is parallel to a length direction of the vehicle; The vehicle body comprises a floor and two threshold beams. Along the first direction, the two threshold beams are arranged on both sides of the floor, and the two threshold beams are fixedly connected to the floor. The box is located under the floor and fixedly connected to the threshold beams.

10. The vehicle according to claim 9, characterized in that The box is also fixedly connected to the floor.

11. The vehicle according to claim 9, characterized in that Also includes: An exhaust muffler is located at the front side of the battery pack along the second direction, and the exhaust muffler is staggered with the first space.

12. The vehicle according to claim 9, characterized in that Also includes: An exhaust pipe and a transmission shaft, wherein the exhaust pipe and the transmission shaft both extend along the second direction, a front end of the exhaust pipe is communicated with the exhaust muffler, and the exhaust pipe and the transmission shaft both pass through the first space.

13. The vehicle according to claim 12, characterized in that The transmission shaft is located above the exhaust pipe.

14. The vehicle according to claim 12, characterized in that The exhaust pipe is spaced apart from the battery pack, and a heat insulation structure is provided between the exhaust pipe and the battery pack.

15. The vehicle according to claim 12, characterized in that The exhaust pipe is spaced apart from the transmission shaft.

16. The vehicle according to claim 9, characterized in that At least a portion of the battery pack is installed between the two door sill beams, and an inner side wall of at least one of the door sill beams is spaced apart from the battery pack to form a second space.

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