CN215496956U - Vehicle with a steering wheel - Google Patents

Abstract

The utility model discloses a vehicle, comprising: a chassis, the chassis comprising: a chassis, the chassis comprising: the left threshold beam, the right threshold beam, the front cross beam and the rear cross beam; a plurality of battery cells; a top plate; a floor, wherein at least one of the left and right sill beams includes: threshold roof beam main part and bulge inject exhaust passage in threshold roof beam main part and the bulge, and threshold roof beam main part is last to be provided with air inlet and bulge and is provided with the gas outlet, and exhaust passage is linked together through air inlet and accommodation space to and be linked together through gas outlet and external environment, and the gas outlet is given vent to anger towards oblique below on the bulge to discharge the gas fire stream towards oblique below after battery monomer thermal runaway. Therefore, the air outlet is arranged on the protruding part in the direction towards the oblique lower side, the air outlet direction can be improved, the battery single body can discharge air fire flow towards the oblique lower side after thermal runaway, and therefore the air fire flow can be prevented from being sprayed in parallel with the road surface, and secondary damage to passengers and external articles of a vehicle can be prevented.

Description

Vehicle with a steering wheel

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle.

Background

With the planning and support of the country for the development of new energy automobile industry, electric automobiles are more and more popular, and meanwhile, many problems of terminal experience are generated, for example: the problems of short driving range, collision safety of the vehicle, thermal runaway safety of the vehicle, and the like are particularly important for the light weight and integrated design of the electric vehicle.

In the correlation technique, in order to guarantee the stability of the last battery of electric automobile, prevent that the impact of external foreign matter or external force from damaging the battery, generally can keep apart battery and external world, when the battery thermal runaway appeared, the highly compressed gas fire stream of high temperature in the battery will unable in time be discharged, can cause the incident, endangers driver and passenger's on the electric automobile life safety. On other electric automobile, even if the casing both sides that set up the battery have been seted up the gas outlet and have been supplied the battery thermal runaway time exhaust, but the direction of giving vent to anger of gas outlet is on a parallel with the horizontal plane, easily leads to the high-temperature high-pressure gas that the battery thermal runaway produced to discharge the back from the gas outlet like this, causes secondary damage to vehicle passenger and foreign object.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a vehicle, the air outlet of the vehicle is arranged obliquely below, and the air outlet safety can be improved.

A vehicle according to an embodiment of the present invention includes: a chassis, the chassis comprising: the front cross beam is connected between the left threshold beam and the right threshold beam, the rear cross beam is connected between the left threshold beam and the right threshold beam, and the left threshold beam, the right threshold beam, the front cross beam and the rear cross beam jointly define a containing space; the battery units are sequentially arranged and connected, and are arranged in the accommodating space; the top plate is arranged at the top of the bottom plate to seal the top of the accommodating space; a bottom plate, the bottom plate set up in the bottom on chassis and with the roof sets up relatively, in order to seal accommodation space's bottom, wherein, left threshold roof beam with at least one in the right threshold roof beam includes: threshold roof beam main part and bulge, the bulge set up in the outside of threshold roof beam main part, threshold roof beam main part with inject exhaust passage in the bulge, be provided with the air inlet in the threshold roof beam main part just the bulge is provided with the gas outlet, exhaust passage pass through the air inlet with accommodation space is linked together, and passes through the gas outlet is linked together with external environment, the gas outlet is in give vent to anger in the bulge below to the oblique direction, with discharge gas stream below after the battery monomer thermal runaway.

Therefore, the air outlet is arranged on the protruding part in the direction towards the oblique lower side, the air outlet direction can be improved, the battery single body can discharge air fire flow towards the oblique lower side after thermal runaway, and therefore the air fire flow can be prevented from being sprayed in parallel with the road surface, and secondary damage to passengers and external articles of a vehicle can be prevented.

According to some embodiments of the utility model, the air inlet is provided on an inner side wall of the rocker beam body, the air outlet is provided on an outer side wall of the projection, the outer side wall of the projection extending at least partially obliquely downward in an outward-inward direction.

According to some embodiments of the utility model, at least one of the left and right rocker beams further comprises: a guide portion disposed within the exhaust passage and configured to guide between the air inlet and the air outlet.

According to some embodiments of the present invention, the guide part is constructed in a plate shape that is obliquely arranged, an upper end of the guide part is connected to one of an inner sidewall of the rocker beam body, a top wall, and a top wall of the projecting part, and a lower end of the guide part is connected to an outer sidewall of the projecting part.

According to some embodiments of the utility model, a top wall of the projection is lower than a top wall of the rocker beam body, a step being formed between the top wall of the projection and an outer side wall of the rocker beam body; the vehicle includes: a door having a bottom portion fitted at the step.

According to some embodiments of the present invention, the battery cells are arranged in the accommodating space in a row, a first gap is left between two adjacent rows of the battery cells, a second gap is left between at least one of the left threshold beam and the right threshold beam and the battery cell, and the second gap is communicated with the first gap and also communicated with the air inlet.

According to some embodiments of the utility model, the chassis further comprises: the inner partition beam is arranged in the accommodating space and divides the accommodating space into at least two sub-accommodating spaces, the plurality of battery cells are respectively arranged in the at least two sub-accommodating spaces and a third gap is reserved between the plurality of battery cells and the inner partition beam, and the third gap is communicated with the second gap.

According to some embodiments of the utility model, the air inlet is provided with a closure member openably and closably provided to the air inlet; or a breakable weakening structure is arranged around the sealing cover part; or the sealing cover part is provided with an air hole.

According to some embodiments of the utility model, the gas outlet is provided with an explosion-proof valve.

According to some embodiments of the utility model, the vehicle further comprises: the vehicle body is provided with a cockpit, the cockpit is located above the chassis, and the top plate is connected with the cockpit and is a floor of the cockpit.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 2 is a partial exploded view of a vehicle according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 4 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 5 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 6 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 7 is a partial schematic view of a vehicle according to an embodiment of the utility model;

FIG. 8 is a partial schematic view of a vehicle according to an embodiment of the utility model.

Reference numerals:

100-a vehicle;

10-a vehicle body; 11-a cockpit;

20-a chassis; 21-left threshold beam; 211-sill beam body; 212-a guide; 22-right sill beam; 221-an air inlet; 2211-closure member; 222-an air outlet; 2221-explosion-proof valve; 2222-step; 23-a front cross beam; 24-a rear cross member; 25-an accommodation space; 251-a sub-accommodation space; 26-a projection; 27-a reinforcement;

30-a bottom plate; 33-a top plate; 331-reinforcing ribs; 34-an exhaust channel;

40-inner spacer beam; 41-diaphragm beam; 42-longitudinal beam; 43-a lap-joint table; 44-glue groove;

50-a battery cell; 53-first gap; 54-a second gap; 55-third gap.

Detailed Description

Embodiments of the present invention will be described in detail below, and the embodiments described with reference to the drawings are exemplary.

A vehicle 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 8, and the vehicle 100 may be an electric vehicle.

As shown in fig. 1, 2, and 8, a vehicle 100 according to an embodiment of the present invention may mainly include: a chassis 20, a bottom plate 30, a top plate 33, and a plurality of battery cells 50, wherein the chassis 20 may mainly include: left threshold roof beam 21, right threshold roof beam 22, front beam 23 and rear beam 24, front beam 23 is connected between left threshold roof beam 21 and right threshold roof beam 22, and rear beam 24 is connected between left threshold roof beam 21 and right threshold roof beam 22, and left threshold roof beam 21, right threshold roof beam 22, front beam 23 and rear beam 24 can inject accommodation space 25 jointly. Specifically, the left rocker beam 21, the right rocker beam 22, the front cross beam 23, and the rear cross beam 24 on the vehicle 100 are all original structures on the vehicle 100, that is, even if the battery cell 50 is not mounted on the vehicle 100, the left rocker beam 21, the right rocker beam 22, the front cross beam 23, and the rear cross beam 24 may exist on the vehicle 100, the left rocker beam 21 and the right rocker beam 22 are respectively located on the left and right sides of the vehicle 100, so as to be respectively in limit fit with the doors on the left and right sides, and define a space for a driver and a passenger to sit on the vehicle 100, and other functions, which are not described herein.

Further, the front cross member 23 and the rear cross member 24 are respectively provided between the front and rear ends of the left rocker beam 21 and the right rocker beam 22, so that the left rocker beam 21, the right rocker beam 22, the front cross member 23, and the rear cross member 24 can separate the enclosed area from other areas on the vehicle 100, and the reliability of the vehicle 100 can be ensured.

Further, as shown in fig. 1, 2 and 8, the area defined by the left rocker beam 21, the right rocker beam 22, the front cross beam 23 and the rear cross beam 24 is the accommodating space 25, the bottom plate 30 is disposed at the bottom of the chassis 20 and closes the bottom of the accommodating space 25, the top plate 33 is disposed at the top of the chassis 20 and is disposed opposite to the bottom plate 30, the top plate 33 closes the top of the accommodating space 25, the plurality of battery cells 50 are sequentially arranged and connected, and the plurality of battery cells 50 are disposed in the accommodating space 25. Specifically, the top plate 33 and the bottom plate 30 are respectively provided at the top and bottom of the accommodating space 25, and the top and bottom of the accommodating space 25 are respectively sealed, so that the airtightness of the accommodating space 25 can be ensured.

So set up, after setting up a plurality of battery monomer 50 in accommodation space 25, on the one hand can make left threshold roof 21 and right threshold roof 22 restrict the displacement of a plurality of battery monomer 50 left and right sides orientation, make front beam 23 and rear beam 24 restrict the displacement of a plurality of battery monomer 50 fore-and-aft direction, make roof 33 and bottom plate 30 restrict the displacement of a plurality of battery monomer 50 upper and lower side orientation, can prevent that a plurality of battery monomer 50 from taking place the displacement on vehicle 100, lead to battery monomer 50 to break down, even incident, can promote the reliability and the security of a plurality of battery monomer 50 and vehicle 100 like this.

On the other hand, left threshold roof beam 21, right threshold roof beam 22, front beam 23 and rear frame member 24 interconnect, and the leakproofness of junction is all better, set up roof 33 and bottom plate 30 respectively behind accommodation space 25's top and bottom, can also make roof 33 and bottom plate 30 carry out reliable and stable reliably with accommodation space 25's top and bottom respectively sealed, can make accommodation space 25 whole separate with the external world like this, set up a plurality of battery monomer 50 back in accommodation space 25, can make a plurality of battery monomer 50 separate with the external world, can prevent the erosion of external foreign matter and the impact of external force from damaging a plurality of battery monomer 50, thereby can promote a plurality of battery monomer 50's stability and life, and then can promote vehicle 100's reliability.

Further, the top plate 33 and the bottom plate 30 are original structures of the vehicle 100, that is, even if the plurality of battery cells 50 are not provided in the vehicle 100, the top plate 33 and the bottom plate 30 are provided in the vehicle 100, the bottom plate 30 can separate the vehicle 100 from a road surface at the bottom of the vehicle 100, prevent foreign objects on the road surface from damaging parts of the vehicle 100, and the top plate 33 can be provided for installation of other components of the vehicle 100 and for seating of a driver and passengers.

Thus, the left rocker beam 21, the right rocker beam 22, the front cross beam 23, the rear cross beam 24, the roof panel 33, and the floor panel 30 that define and seal the accommodation space 25 are all original structures on the vehicle 100, that is, the left rocker beam 21, the right rocker beam 22, the front cross beam 23, the rear cross beam 24, the roof panel 33, and the floor panel 30 are not structures that are provided individually for the vehicle 100 to install and set a plurality of battery cells 50, but define and seal the accommodation space 25 together while the left rocker beam 21, the right rocker beam 22, the front cross beam 23, the rear cross beam 24, the roof panel 33, and the floor panel 30 do not lose their respective functions on the vehicle 100, so as to install and set a plurality of battery cells 50 stably and reliably.

So set up, on the one hand can make full use of left threshold roof beam 21, right threshold roof beam 22, front beam 23, rear frame member 24, roof 33 and bottom plate 30's structure and function, can optimize vehicle 100's structural design, on the other hand, can reduce the last structural type and the quantity that is used for setting up battery cell 50 of vehicle 100 to not only can reduce vehicle 100's weight, can promote vehicle 100's continuation of the journey mileage, but also can reduce vehicle 100's manufacturing cost.

In addition, the plurality of battery cells 50 are sequentially arranged and connected to each other, wherein the plurality of battery cells 50 may be arranged in a row and/or in a column, it should be noted that the plurality of battery cells 50 may be arranged in a row or in a front-back direction, and the plurality of battery cells 50 may be arranged in a column or in a left-right direction, so that not only the plurality of battery cells 50 may be arranged in the accommodating space 25 in compliance with the shape of the accommodating space 25, the integration level of the plurality of battery cells 50 on the vehicle 100 may be increased, the plurality of battery cells 50 may be more compact, and on the premise that the volume of the accommodating space 25 is constant, the accommodating space 25 may be provided with more battery cells 50, thereby further increasing the mileage of the vehicle 100 without changing the volume of the vehicle 100, and further stabilizing the plurality of battery cells 50, so that the reliability of the vehicle 100 can be further improved.

Among them, connecting the plurality of battery cells 50 to each other can make the plurality of battery cells 50 supply power to the vehicle 100 together, and can further improve the reliability of the plurality of battery cells 50. Also, the positions where the bottom plate 30 and the top plate 33 are required to be sealed with the chassis 20 are provided with corresponding sealing materials and sealing structures, so as to further improve the sealing performance of the accommodating space 25, further improve the safety of the plurality of battery cells 50 in the accommodating space 25, and prolong the service life of the plurality of battery cells 50.

In addition, the left rocker beam 21, the right rocker beam 22, the front cross beam 23 and the rear cross beam 24 are all insulated from the battery cell 50, so that when thermal runaway of the battery cell 50 occurs and high-temperature and high-pressure gas-fire current is generated, heat is prevented from being transferred outwards through the left rocker beam 21, the right rocker beam 22, the front cross beam 23 and the rear cross beam 24, users around the vehicle 100 are injured, or parts of the vehicle 100 adjacent to the left rocker beam 21, the right rocker beam 22, the front cross beam 23 and the rear cross beam 24 are damaged, and therefore the stability and the reliability of the vehicle 100 can be further improved.

Further, as shown in connection with fig. 5-7, at least one of the left and right rocker beams 21, 22 includes: the rocker beam main body 211 and the protruding portion 26, the protruding portion 26 is arranged on the outer side of the rocker beam main body 211, the exhaust channel 34 is defined in the rocker beam main body 211 and the protruding portion 26, an air inlet 221 is arranged on the rocker beam main body 211, an air outlet 222 is arranged on the protruding portion 26, the exhaust channel 34 is communicated with the accommodating space 25 through the air inlet 221 and communicated with the external environment through the air outlet 222, and the air outlet 222 is used for exhausting air and fire flow towards the lower oblique direction on the protruding portion 26 after the thermal runaway of the battery cell 50. Specifically, when thermal runaway occurs in the battery cell 50 in the accommodating space 25 and high-temperature and high-pressure fire flow is generated, the high-temperature and high-pressure fire flow in the accommodating space 25 can firstly enter the exhaust passage 34 through the air inlet 221 on the threshold beam main body 211 and then is exhausted to the outside from the air outlet 222 on the protruding portion 26, so that the stability and reliability of the high-temperature and high-pressure fire flow exhausted from the accommodating space 25 to the outside can be ensured, the structure of at least one of the left threshold beam 21 and the right threshold beam 22 can be fully utilized for exhausting air, other components do not need to be arranged, and the structural design of the vehicle 100 can be simplified to a certain extent. In addition, the path of the high-temperature and high-pressure gas-fire flow from the accommodating space 25 to the outside can be shortened, and the exhaust efficiency can be improved.

As shown in conjunction with fig. 5, the air outlet 222 vents air obliquely downward on the convex portion 26 to discharge the air current obliquely downward after the thermal runaway of the battery cell 50. Specifically, by discharging the air outlet 222 on the protruding portion 26 obliquely downward, the high-temperature and high-pressure fire flow can be discharged obliquely downward, and the high-temperature and high-pressure fire flow will not flow back into the exhaust passage 34 in the direction obliquely downward, so that the air discharge stability of the exhaust passage 34 can be further improved, and the reliability of the vehicle 100 can be further improved.

Further, as shown in fig. 5 to 7 in combination, the reinforcing portion 27 is provided in the exhaust passage 34, and the provision of the reinforcing portion 27 in the exhaust passage 34 allows the exhaust passage 34 to be divided into a plurality of different portions, so that when the flow of the flame enters the exhaust passage 34 and flows out from the air outlet 222, the blowout of the flow of the flame can be effectively prevented, which can further improve the reliability of the exhaust passage 34.

Thus, the gas outlet 222 is provided in the protruding portion 26 so as to be directed obliquely downward, whereby the gas outlet direction can be improved, and the gas stream can be discharged obliquely downward after the thermal runaway of the battery cell 50, whereby the gas stream can be prevented from being jetted in parallel with the road surface to cause secondary damage to the passengers getting off and the foreign objects.

As shown in fig. 5 to 7, the air inlet 221 is provided on an inner side wall of the rocker beam body 211, the air outlet 222 is provided on an outer side wall of the projecting portion 26, and the outer side wall of the projecting portion 26 extends at least partially obliquely downward in an outward-inward direction. Specifically, since the left and right rocker beams 21 and 22 are portions defining the accommodating space 25, the projecting portion 26 is provided on the outer side of the rocker beam main body 211, therefore, the air inlet 221 is directly formed on the inner side wall of the rocker beam body 211, and the air outlet 222 is formed on the outer side wall of the protrusion 26 on the outer side of the rocker beam body 211, so that when the battery cell 50 is thermally runaway, and when the high-temperature, high-pressure gas fire flow is generated, the high-temperature, high-pressure gas fire flow can be caused to directly enter the exhaust passage 34 through the intake port 221 of the rocker beam body 211, and flows to the outside through the air outlet 222 on the outer side wall of the projecting portion 26, not only making more full use of the space available on at least one of the inner and outer side walls of the left or right rocker beam 21 or 22, furthermore, the path of the high-temperature and high-pressure gas fire flow from the accommodating space 25 to the outside can be made simpler and more direct, and the exhaust efficiency of the exhaust passage 34 can be further improved.

Further, the outer side wall of the protruding portion 26 extends at least partially obliquely downward in the direction from outside to inside, and the air outlet 222 is directly formed in the protruding portion 26, so that the air outlet 222 can be discharged obliquely downward, and the structural design of the vehicle 100 can be simplified on the premise that the high-temperature and high-pressure air-fire flow is ensured to be stably and continuously discharged obliquely downward. In addition, after the high-temperature and high-pressure gas and fire flow is discharged from the gas outlet 222, the protruding portion 26 can block the high-temperature and high-pressure gas and fire flow, so that the influence of the high-temperature and high-pressure gas and fire flow on the protruding portion 26 can be prevented, and the reliability of the vehicle 100 can be improved.

As shown in connection with fig. 5-7, at least one of the left and right rocker beams 21, 22 further includes: a guide portion 212, the guide portion 212 being disposed in the exhaust passage 34 and serving to guide between the air inlet 221 and the air outlet 222. Specifically, when the battery cell 50 is thermally runaway and a high-temperature high-pressure fire stream is generated, the high-temperature high-pressure fire stream can be directly introduced into the exhaust passage 34 through the air inlet 221 on the inner side wall of the rocker beam main body 211, the high-temperature high-pressure fire stream can be guided to the air outlet 222 through the guide part 212 after being introduced into the exhaust passage 34 from the air inlet 221 by providing the guide part 212 inclined downward in the exhaust passage 34 and positioning the guide part 212 between the air inlet 221 and the air outlet 222, and the high-temperature high-pressure fire stream can be discharged obliquely downward from the air outlet 222, so that the high-temperature high-pressure fire stream can be stably and reliably discharged obliquely downward, and the stability and reliability of the flow of the high-temperature high-pressure fire stream in the exhaust passage can be improved.

As shown in fig. 5 to 7 in conjunction, the guide portion 212 is constructed in a plate shape that is obliquely disposed, an upper end of the guide portion 212 is connected to one of an inner sidewall, a top wall, and a top wall of the projecting portion of the rocker body 211, and a lower end of the guide portion 212 is connected to an outer sidewall of the projecting portion 26. Specifically, the upper end of the guide portion 212 is connected to one of the inner sidewall of the rocker beam body 211, the top wall, and the top wall of the protruding portion 26, and the lower end of the guide portion 212 is extended to be inclined downward, so that the lower end of the guide portion 212 is connected to the outer sidewall of the protruding portion 26, so that the guide portion 212 can stably guide the flow of high-temperature and high-pressure fire air in the exhaust passage 34, and thus the stability and reliability of the guide portion 212 can be improved.

As shown in fig. 5 to 7, the top wall of the projecting portion 26 is lower than the top wall of the rocker beam body 211, a step 2222 is formed between the top wall of the projecting portion 26 and the outer side wall of the rocker beam body 211, and the vehicle 100 may mainly include: and the bottom of the vehicle door is matched at the step. Specifically, by making the projecting portion 26 entirely lower than the rocker main body 211, the projecting portion 26 and the rocker main body 211 can be made to form a step 2222 together, and the step 2222 can be used to be fitted to the bottom of the door, so that the door can be restrained, and thus the stability of the door can be improved, and the reliability of the vehicle 100 can be further improved.

As shown in fig. 2, the plurality of battery cells 50 are arranged in a row in the accommodating space 25, a first gap 53 is left between two adjacent rows of the battery cells 50, a second gap 54 is left between at least one of the left threshold beam 21 and the right threshold beam 22 and the battery cell 50, and the second gap 54 is communicated with the first gap 53 and the air inlet 221. Specifically, it should be noted that, a plurality of battery cells 50 are arranged in a row and can be arranged for following the left and right direction, a plurality of battery cells 50 are arranged in a row and can be arranged for following the front and back direction, through leaving first clearance 53 between two battery cells 50, not only can promote the area of contact of the air in battery cell 50 and accommodation space 25, thereby can make things convenient for battery cell 50's heat transfer cooling, and when a battery cell 50 temperature rose, the heat will not transmit to the battery cell 50 of adjacent one, so can guarantee adjacent two battery cell 50's independence to a certain extent, thereby can promote a plurality of battery cell 50's reliability.

Further, by leaving the second gap 54 between at least one of the left and right threshold beams 21 and 22 and the battery cell 50 and communicating the first gap 53 and the second gap 54, not only the contact area between the battery cell 50 and the air can be further increased, but also the contact area between the battery cell 50 and the air can be increased, and when the battery cell 50 is out of control thermally and generates a high-temperature high-pressure fire flow, the high-temperature high-pressure fire flow can enter the second gap 54 from the first gap 53 and then enter the exhaust passage 34 from the second gap 54 through the air inlet 221, so that the stability and smoothness of the high-temperature high-pressure fire flow entering the exhaust passage 34 can be further increased, and the exhaust efficiency can be increased to a certain extent.

As shown in fig. 2 and 8, the chassis 20 may further mainly include: and an inner partition beam 40, the inner partition beam 40 being disposed in the accommodating space 25 and dividing the accommodating space 25 into at least two sub-accommodating spaces 251. Specifically, the inner partition beam 40 is arranged to divide the accommodating space 25 into at least two sub-accommodating spaces 251, and after the plurality of battery cells 50 are divided into a plurality of parts having the same number, the same shape and the same volume as the sub-accommodating spaces 251, the plurality of parts correspond to the at least two sub-accommodating spaces 251 one-to-one and are installed and arranged in the at least two sub-accommodating spaces 251.

So set up, under the prerequisite that does not influence a plurality of battery monomer 50 reliable and stable setting on accommodation space 25, on the one hand can promote the area of a plurality of battery monomer 50 and external contact heat transfer, particularly, when there is not interior spacer beam 40 in accommodation space 25, a plurality of battery monomer 50 only with left threshold roof beam 21, right threshold roof beam 22, front beam 23, rear beam 24, roof 33 and bottom plate 30 carry out the heat transfer cooling of contacting, set up interior spacer beam 40 back in accommodation space 25, a plurality of battery monomer 50 not only can with left threshold roof beam 21, right threshold roof beam 22, front beam 23, rear beam 24, roof 33 and bottom plate 30 carry out the heat transfer cooling of stabilizing contact, can also carry out the heat transfer of contacting with interior spacer beam 40, thereby can reduce the temperature of a plurality of battery monomer 50 during operation to a certain extent, and then can promote a plurality of battery monomer 50's reliability.

Still, be provided with overlap joint platform 43 on left threshold roof beam 21 and the right threshold roof beam 22, with interior partition beam 40 overlap joint on the overlap joint platform 43 of left threshold roof beam 21 and right threshold roof beam 22 after, can be fixed through bolted connection, perhaps welded fastening to realize left threshold roof beam 21 and right threshold roof beam 22 and interior partition beam 40 be connected fixedly, furthermore, be provided with glue groove 44 on the overlap joint platform 43, through to packing sealed glue in glue groove 44, can prevent between left threshold roof beam 21 and right threshold roof beam 22 and the interior partition roof beam 40 gas leakage.

On the other hand, the inner partition beam 40 may partition the accommodating space 25 into at least two sub-accommodating spaces 251, and when the temperature of one or more battery cells 50 in one sub-accommodating space 251 is sharply increased, even if a fire occurs, the inner partition beam 40 may partition the battery cells 50 in the sub-accommodating space 251 from the battery cells 50 in the other sub-accommodating spaces 251, and may prevent the high temperature or fire from spreading from the sub-accommodating spaces 251 to the other sub-accommodating spaces 251, so that the reliability of the plurality of battery cells 50 and the vehicle 100 may be further improved.

In addition, the inner partition beam 40 may also play a role in enhancing the structural strength of the chassis 20 to a certain extent, so that the stability and the firmness of the accommodating space 25 may be enhanced, and further, the reliability of the installation and the arrangement of the plurality of battery cells 50 in the accommodating space 25 may be enhanced.

In some embodiments, the inner partition beams 40 are at least two, and are the cross partition beams 41, two ends of the at least two cross partition beams 41 are respectively connected to the left threshold beam 21 and the right threshold beam 22, and are spaced in the front-rear direction, so that the accommodating space 25 can be partitioned into a plurality of sub accommodating spaces 251 arranged in the front-rear direction, and thus the plurality of battery cells 50 can be partitioned into at least three parts in the front-rear direction, which not only can further increase the contact heat exchange area of the plurality of battery cells 50 with the inner partition beams 40 and improve the heat exchange performance of the plurality of battery cells 50, but also when a high temperature fire occurs in a battery cell 50 in a certain sub accommodating space 251, because the plurality of battery cells 50 are partitioned into at least three parts, the inner partition beams 40 can partition the sub accommodating space of the battery cell 50 in which the high temperature fire occurs from the battery cells 50 in other sub accommodating spaces 251, the loss can be reduced. In addition, since the at least two inner partition beams 40 divide the accommodating space 25 into the plurality of sub-accommodating spaces 251, the volume of each sub-accommodating space 251 is small, that is, the number of the battery cells 50 in each sub-accommodating space 251 is small, so that when a fire breaks out in one of the sub-accommodating spaces 251, the loss of a plurality of battery cells 50 can be further reduced due to the small number of the battery cells 50 in the sub-accommodating space 251.

In other embodiments, the inner beams 40 are at least two, and are longitudinal beams 42, two ends of at least two longitudinal beams 42 are respectively connected to the front beam 23 and the rear beam 24, and are arranged at intervals in the left-right direction, so that the accommodating space 25 is divided into a plurality of sub-accommodating spaces 251 arranged in the left-right direction, and thus the plurality of battery cells 50 can be divided into at least three parts in the left-right direction, which not only can further increase the contact heat exchange area of the plurality of battery cells 50 with the inner beams 40, but also can improve the heat exchange performance of the plurality of battery cells 50, and when a high-temperature fire occurs in a battery cell 50 in a certain sub-accommodating space 251, because the plurality of battery cells 50 are divided into at least three parts, the inner beams 40 can separate the sub-accommodating space 251 of the battery cell 50 where the high-temperature fire occurs from the battery cells 50 in other sub-accommodating spaces 251, the loss can be reduced. In addition, since the at least two inner partition beams 40 divide the accommodating space 25 into the plurality of sub-accommodating spaces 251, the volume of each sub-accommodating space 251 is small, that is, the number of the battery cells 50 in each sub-accommodating space 251 is small, so that when a fire breaks out in one of the sub-accommodating spaces 251, the loss of a plurality of battery cells 50 can be further reduced due to the small number of the battery cells 50 in the sub-accommodating space 251.

In other embodiments, as shown in fig. 2 and 8, the number of the inner beams 40 is at least two, and the inner beams are a cross beam 41 and a longitudinal beam 42, the cross beam 41 and the longitudinal beam 42 are arranged in an intersecting manner, two ends of the cross beam 41 are respectively connected to the left threshold beam 21 and the right threshold beam 22 and are arranged at intervals in the front-rear direction, two ends of the longitudinal beam 42 are respectively connected to the front cross beam 23 and the rear cross beam 24 and are arranged at intervals in the left-right direction, so that the accommodating space 25 can be divided into a plurality of sub-accommodating spaces 251 which are uniformly arranged at intervals in the left-right direction and the front-rear direction, so that the plurality of battery cells 50 can be divided into at least four parts, thereby not only further increasing the contact heat exchange area of the plurality of battery cells 50 with the inner beam 40 and improving the performance of the plurality of battery cells 50, but also when a high temperature occurs in a certain heat exchange sub-accommodating space 251, since the plurality of battery cells 50 are partitioned into at least four parts, the inner partition beams 40 may partition the sub-receiving space 251 of the battery cell 50, in which a high-temperature fire occurs, from the battery cells 50 in other sub-receiving spaces 251, and may reduce loss.

In addition, since the at least two inner partition beams 40 divide the accommodating space 25 into the plurality of sub-accommodating spaces 251, the volume of each sub-accommodating space 251 is small, that is, the number of the battery cells 50 in each sub-accommodating space 251 is small, so that when a fire breaks out in one of the sub-accommodating spaces 251, the loss of a plurality of battery cells 50 can be further reduced due to the small number of the battery cells 50 in the sub-accommodating space 251. It should be noted that, with such an arrangement, on the premise that the number of the inner partition beams 40 is the same, the number of the sub-accommodation spaces 251 into which the accommodation space 25 is partitioned by the inner partition beams 40 can be increased, so that on the premise that the number of the plurality of battery cells 50 is fixed, the number of the battery cells 50 in each sub-accommodation space 251 can be further reduced.

Further, the number of the inner barrier beams 40 and the arrangement manner in the accommodating space 25 may be selectively set according to the specific structure and the specific process requirements of the vehicle 100, so that the applicability of the inner barrier beams 40 may be further improved, and thus the reliability of the vehicle 100 may be further improved.

It should be noted that, when the inner partition beams 40 are the transverse partition beams 41 and the longitudinal partition beams 42, the number of the transverse partition beams 41 and the number of the longitudinal partition beams 42 may be different, and the number of the transverse partition beams 41 and the number of the longitudinal partition beams 42 may be adjusted according to specific process requirements, so that the variability and flexibility of the installation and the arrangement of the inner partition beams 40 in the accommodating space 25 may be improved, and the applicability of the inner partition beams 40 may be improved.

As shown in fig. 2 and 4, the plurality of battery cells 50 are respectively disposed in the at least two sub-receiving spaces 251, and a third gap 55 is left between the plurality of battery cells and the inner partition beam 40, and the third gap 55 is communicated with the second gap 54. Specifically, by leaving the third gap 55 between the inner spacer bar 40 and the adjacent battery cell 50 in the adjacent column, the contact area between the plurality of battery cells 50 and the air can be increased, and thus the heat dissipation performance of the plurality of battery cells 50 can be improved. Further, the third gap 55 is communicated with the second gap 54, so that when thermal runaway occurs in the battery cells 50 in a row adjacent to the inner partition beam 40, the air and fire flow can rapidly and directly enter the second gap 54 through the third gap 55 and then directly enter the exhaust channel 34 from the second gap 54 through the air inlet 221, and therefore, not only can the exhaust efficiency be further improved, but also the exhaust of the accommodating space 25 can be more uniform, the uniformity of the air pressure in the accommodating space 25 can be improved, and the reliability of the accommodating space 25 can be improved.

As shown in fig. 8, each sub-receiving space 251 corresponds to a plurality of air inlets 221 and one air outlet 222. Specifically, since the second gap 54 has a certain length, after the high-temperature and high-pressure gas fire flows enter the second gap 54, the second gap 54 of each sub-receiving space 251 corresponds to the plurality of air inlets 221, so that not only can uniformity of the high-temperature and high-pressure gas fire flows in the second gap 54 entering the exhaust passage 34 through the air inlets 221 be ensured, but also the air intake efficiency can be improved.

Further, the second gap 54 of each sub-accommodation space 251 corresponds to one air outlet 222, so that a certain pressure can be ensured when the high-temperature and high-pressure fire stream in the exhaust channel 34 is exhausted from the air outlet 222, and the high-temperature and high-pressure fire stream can be sprayed out from the air outlet 222 at a certain speed, so that the air outlet efficiency can be improved, the high-temperature and high-pressure fire stream can be prevented from flowing back to the exhaust channel 34, and the stability and reliability of exhaust can be improved.

As shown in fig. 3 and 5, the air outlet area of the air outlet 222 is larger than the air inlet area of the air inlet 221. Specifically, since each sub-accommodation space 251 corresponds to a plurality of air inlets 221 and corresponds to one air outlet 222, if the air inlet area of a single air inlet 221 is set to be equal to the air outlet area of the air outlet 222, the amount of the high-temperature and high-pressure air-fuel flow entering the exhaust channel 34 is greater than the outflow amount in a unit time, which may cause uneven air inlet and exhaust, resulting in that the exhaust channel 34 may be charged with accumulated high-temperature and high-pressure air-fuel flow for a long time, and the high-temperature and high-pressure air-fuel flow in the second gap 54 may not smoothly enter the exhaust channel 34, and therefore, the air outlet area of the air outlet 222 is set to be greater than the air inlet area of the air inlet 221, which may improve the smoothness of air inlet and outlet of the exhaust channel 34, and may improve the reliability of the exhaust channel 34.

In some embodiments, the air inlet 221 is provided with a cover 2211, and the cover 2211 is openably and closably provided to the air inlet 221. Specifically, when the battery cell 50 in the accommodating space 25 normally operates, the cover 2211 can be used for stably and reliably sealing the air inlet 221, so that the air inlet 221 can be prevented from being blocked by foreign matters when the vehicle 100 is assembled and produced, and smoothness of the air inlet 221 is influenced, when the battery cell 50 in the accommodating space 25 is in thermal runaway, the cover 2211 can open the air inlet 221, so that high-temperature and high-pressure fire flow in the accommodating space 25 is discharged from the air inlet 221, and thus the cover 2211 can ensure stability and reliability of the high-temperature and high-pressure fire flow discharged from the air inlet 221 when the battery cell 50 is in thermal runaway.

In other embodiments, a breakable weakening structure is provided between the cover 2211 and the air inlet 221. Specifically, when the battery cell 50 in the accommodating space 25 normally works, the sealing cover 2211 can be used for stably and reliably sealing the air inlet 221, so that the vehicle 100 can be prevented from being assembled and produced, the foreign matter blocks the air inlet 221, smoothness of the air inlet 221 is affected, when the battery cell 50 in the accommodating space 25 is in thermal runaway, high-temperature and high-pressure gas fire flow can be instantly melted to weaken the structural part, and accordingly the conduction of the air inlet 221 is realized, so that the arrangement is realized, when the thermal runaway of the battery cell 50 can be ensured, the conduction of the accommodating space 25 and the exhaust channel 34 is realized, the conduction principle is relatively simple, and the implementation is convenient. The breakable weakening structure portion may be a plug, a film, and a mesh enclosure, including but not limited to these, which are not described herein again.

In other embodiments, the cover 2211 is provided with vents. Specifically, when the battery cell 50 in the accommodating space 25 normally works, the cover 2211 can be used for stably and reliably sealing the air inlet 221, so that the air inlet 221 can be prevented from being blocked by foreign matters to influence the air outlet of the air inlet 221 when the vehicle 100 is assembled and produced, and when the battery cell 50 in the accommodating space 25 is in thermal runaway, high-temperature and high-pressure fire currents can be discharged from the air holes of the cover 2211, so that the accommodating space 25 can be communicated with the exhaust channel 34 when the battery cell 50 is in thermal runaway, and the reliability of the cover 2211 can be improved.

As shown in fig. 1, 3 and 5, the air outlet 222 is provided with an explosion-proof valve 2221, and the explosion-proof valve 2221 can detect the pressure in the exhaust passage 34 and selectively adjust the amount of exhaust from the air outlet 222 according to the detection result, for example: when the air pressure in the exhaust passage 34 is high, the explosion-proof valve 2221 may control the air outlet 222 to increase the amount of the high-temperature and high-pressure fire flow discharged per unit time, so that the air pressure in the exhaust passage 34 may be rapidly reduced, and the structure of the exhaust passage 34 and the accommodating space 25 may be kept stable, and when the air pressure in the exhaust passage 34 is small and is close to the external air pressure, the explosion-proof valve 2221 may control the air outlet 222 to decrease the amount of the high-temperature and high-pressure fire flow discharged per unit time until the air pressure in the exhaust passage 34 is equal to the external air pressure, and the explosion-proof valve 2221 controls the air outlet 222 to stop exhausting, so that the stability and reliability of the exhaust passage 34 may be further improved.

Further, the explosion-proof valve 2221 is provided with a waterproof breathable membrane, so that the explosion-proof valve 2221 can continuously and reliably measure the air pressure in the exhaust passage 34 through the waterproof breathable membrane on the premise that the explosion-proof valve 2221 is corroded and damaged by preventing water from contacting with the explosion-proof valve 2221, the normal operation of the explosion-proof valve 2221 can be prevented from being affected by the waterproof breathable membrane, and thus the stability and reliability of the explosion-proof valve 2221 can be further improved.

Further, a guide portion (not shown) is provided in the exhaust passage 34, and the guide portion is located between the air inlet 221 and the air outlet 222. Specifically, by arranging the guide portion between the air inlet 221 and the air outlet 222, the guide portion can guide the discharge of the high-temperature high-pressure gas fire flow, so that the stability and smoothness of the high-temperature high-pressure gas fire flow flowing from the air inlet 221 to the air outlet 222 can be further improved, the backflow of the high-temperature high-pressure gas fire flow can be prevented, and the exhaust efficiency can be improved.

The vehicle 100 may also mainly include: a vehicle body 10, the vehicle body 10 being disposed above a chassis 20, the vehicle body 10 including: and the air outlet 222 is positioned right below the B column and/or the C column, so that when high-temperature and high-pressure air and fire flow is discharged from the air outlet 222 on the left threshold beam 21 and the right threshold beam 22, the possibility that people in the vehicle are injured by the air and fire flow when getting on or off the vehicle can be reduced.

As shown in fig. 1, fig. 2, and fig. 8, the vehicle 100 may further mainly include: the vehicle body 10, the vehicle body 10 is provided with a cab 11, the cab 11 is located above the chassis 20, and the roof 33 is connected with the cab 11 and is a floor of the cab 11. Specifically, the cab 11 is disposed above the chassis 20, and the top plate 33 at the top of the accommodating space 25 of the bottom plate 30 can be used as the floor of the cab 11, so that the plurality of battery cells 50 can be spaced apart from the cab 11, the safety of a driver and passengers in the cab 11 is prevented from being affected when the plurality of battery cells 50 are in a safety accident, the top plate 33 can fully exert the functions and functions of the vehicle, and the structural design of the vehicle 100 can be optimized.

Further, the top plate 33 is a steel plate formed by stamping or hot forming, which not only facilitates the production of the top plate 33, but also improves the strength of the top plate 33, further improves the reliability of spacing the battery cell 50 from the cab 11, and prevents the battery cell 50 from being damaged due to the impact of external force in the cab 11, thus further improving the reliability of the vehicle 100. Further, a high temperature resistant, fire resistant and flame retardant material is disposed on a side of the top plate 33 facing the accommodating space 25, so that when the battery cell 50 is in fire, high temperature gas or flame can be prevented from burning through the top plate 33 and entering the driving cab 11, which endangers the life safety of the driver and passengers in the driving cab 11, and thus the reliability of the top plate 33 and the whole vehicle 100 can be further improved.

In addition, the reinforcing rib 331 is arranged on the top plate 33, and the reinforcing rib 331 is correspondingly connected with the inner partition beam 40 inside the accommodating space 25, so that mutual independence of each sub-accommodating space 251 can be further ensured, a physical isolation effect can be achieved, and after thermal runaway of the battery cell 50 can be further prevented, high-temperature and high-pressure gas fire flows enable the top plate 33 to expand and deform, and the high-temperature and high-pressure gas fire flows are serially connected in the accommodating space 25, so that thermal runaway of the battery cell 50 is diffused and spread in advance, and thus the reliability of the vehicle 100 can be further improved.

Further, the bottom of chassis 20 still is provided with the liquid cooling board, and the liquid cooling board can be to the concentrated heat transfer cooling of a plurality of battery monomer 50, can further promote the radiating effect when out of control to a plurality of battery monomer 50 heat like this to can further promote vehicle 100's security and stability.

Further, the bottom of the plurality of battery cells 50 is provided with a heat conducting pad, and the heat conducting pad is disposed on the liquid cooling plate. Specifically, set up the heat conduction pad with the bottom of a plurality of battery monomer 50, can be in a plurality of battery monomer 50 and liquid cooling board during the cooling liquid heat transfer cooling, make heat transfer between them more even, specifically speaking, a plurality of battery monomer 50 can be with heat line transmission to heat conduction on the pad, the heat can disperse on the heat conduction pad earlier evenly, the transmission, back on heat evenly distributed to heat conduction pad, again with the coolant liquid in the liquid cooling board carry out the heat transfer, with heat transfer to the coolant liquid in, can make the heat dissipation of a plurality of battery monomer 50 evenly fast like this, can promote the heat exchange efficiency of a plurality of battery monomer 50.

Further, the heat conduction pad can be made of heat conduction structure glue, and the arrangement is such that on the one hand, the heat conduction structure glue can be used for buffering and blocking the force applied to the bottoms of the plurality of battery monomers 50 on the premise that the heat conduction structure glue cannot scrape and wear the lower surfaces of the plurality of battery monomers 50, and further, the external force impact on the bottom of the vehicle 100 can be prevented from damaging the plurality of battery monomers 50, so that the reliability of the plurality of battery monomers 50 can be improved, on the other hand, the plurality of battery monomers 50 can be stably and firmly arranged on the heat conduction pad firstly, so that the heat conduction pad is arranged in the accommodating space 25, and therefore the plurality of battery monomers 50 are stably and firmly arranged in the accommodating space 25, so that the overall mode of the plurality of battery monomers 50 can be effectively improved, and the stress or connection failure of the single battery monomer 50 can be avoided.

Further, one of the top plate 33 and the bottom plate 30 is fixed to the chassis 20, and the other is detachably provided to the chassis 20. Specifically, when a plurality of battery cells 50 normally work, the accommodation space 25 handles the sealed state, when a plurality of battery cells 50 break down, need maintenance or change, the accommodation space 25 needs to be opened, therefore, one of the top plate 33 and the bottom plate 30 is fixed on the chassis 20, the other is detachably arranged on the chassis 20, when a plurality of battery cells 50 break down, need maintenance or change, only one of the top plate 33 and the bottom plate 30 detachably connected with the chassis 20 needs to be detached, so that a plurality of battery cells 50 in the accommodation space 25 can be maintained or changed, and thus, the later maintenance of the vehicle 100 by a user can be facilitated.

It should be noted that, when the bottom plate 30 is detachably installed on the chassis 20, and the bottom plate 30 is detached to repair and replace the plurality of battery cells 50 in the accommodating space 25, it is necessary to operate from bottom to top to repair and replace the plurality of battery cells 50, and when the top plate 33 is detached to repair and replace the plurality of battery cells 50 in the accommodating space 25, it is necessary to operate from top to bottom to repair and replace the plurality of battery cells 50.

Further, one of the top plate 33 and the bottom plate 30 is fixed on the chassis 20, which not only improves the stability and firmness of the connection arrangement of the one of the top plate 33 and the bottom plate 30 and the chassis 20, but also simplifies the production process of the vehicle 100, i.e. one of the bottom plate 30 and the top plate 33 is arranged on the chassis 20 without separately performing an assembly process, so that the difficulty of the assembly production of the vehicle 100 can be reduced.

According to an embodiment of the present invention, the batteries are arranged in the same direction, and the elastic thermal insulation pad is disposed between two adjacent batteries 50, so that the two adjacent batteries 50 can be prevented from transferring heat to each other, and one battery 50 can be prevented from malfunctioning, and when the temperature rises sharply, the battery 50 transfers heat to the adjacent battery 50, which causes the temperature of the adjacent battery 50 to rise sharply, resulting in large-scale thermal runaway of the plurality of batteries 50, thereby ensuring independence of heat generation among the plurality of batteries 50, and improving safety and reliability of the plurality of batteries 50.

In addition, the elastic heat insulation pad can buffer the space between two adjacent battery cells 50, and can prevent the two adjacent battery cells 50 from being squeezed and scratched with each other to damage the battery cells 50, so that the reliability of the plurality of battery cells 50 can be further improved. In addition, the top and the side of the plurality of battery cells 50 may be provided with an insulating protector to further improve the safety and reliability of the plurality of battery cells 50.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A vehicle, characterized by comprising:

a chassis, the chassis comprising: the front cross beam is connected between the left threshold beam and the right threshold beam, the rear cross beam is connected between the left threshold beam and the right threshold beam, and the left threshold beam, the right threshold beam, the front cross beam and the rear cross beam jointly define a containing space;

the battery units are sequentially arranged and connected, and are arranged in the accommodating space;

the top plate is arranged at the top of the bottom plate to seal the top of the accommodating space;

a bottom plate disposed at a bottom of the bottom chassis and opposite to the top plate to close a bottom of the accommodating space, wherein,

at least one of the left and right rocker beams includes: threshold roof beam main part and bulge, the bulge set up in the outside of threshold roof beam main part, threshold roof beam main part with inject exhaust passage in the bulge, be provided with the air inlet in the threshold roof beam main part just the bulge is provided with the gas outlet, exhaust passage pass through the air inlet with accommodation space is linked together, and passes through the gas outlet is linked together with external environment, the gas outlet is in give vent to anger in the bulge below to the oblique direction, with discharge gas stream below after the battery monomer thermal runaway.

2. The vehicle of claim 1, wherein the air inlet is disposed on an inner side wall of the rocker beam body and the air outlet is disposed on an outer side wall of the projection, the outer side wall of the projection extending at least partially obliquely downward in an outward-inward direction.

3. The vehicle of claim 2, wherein at least one of the left and right rocker beams further comprises: a guide portion disposed within the exhaust passage and configured to guide between the air inlet and the air outlet.

4. The vehicle according to claim 3, wherein the guide portion is configured in a plate shape that is obliquely arranged, an upper end of the guide portion is connected to one of an inner side wall of the rocker beam body, a top wall, and a top wall of the projecting portion, and a lower end of the guide portion is connected to an outer side wall of the projecting portion.

5. The vehicle of claim 2, characterized in that a top wall of the projection is lower than a top wall of the rocker beam body, a step being formed between the top wall of the projection and an outer side wall of the rocker beam body;

the vehicle includes: a door having a bottom portion fitted at the step.

6. The vehicle of claim 1, wherein the plurality of battery cells are arranged in the accommodating space in a row, a first gap is reserved between two adjacent rows of the battery cells, a second gap is reserved between at least one of the left threshold beam and the right threshold beam and the battery cells, and the second gap is communicated with the first gap and the air inlet.

7. The vehicle of claim 6, wherein the chassis further comprises: the inner partition beam is arranged in the accommodating space and divides the accommodating space into at least two sub-accommodating spaces, the plurality of battery cells are respectively arranged in the at least two sub-accommodating spaces and a third gap is reserved between the plurality of battery cells and the inner partition beam, and the third gap is communicated with the second gap.

8. The vehicle according to claim 1, characterized in that the intake port is provided with a cover member that is openably and closably provided to the intake port; or

A breakable weakening structure is arranged around the sealing cover part; or

The cover sealing piece is provided with air holes.

9. The vehicle of claim 1, characterized in that the air outlet is provided with an explosion-proof valve.

10. The vehicle of claim 1, further comprising: the vehicle body is provided with a cockpit, the cockpit is located above the chassis, and the top plate is connected with the cockpit and is a floor of the cockpit.

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