CN215622297U

CN215622297U - Vehicle body floor assembly of vehicle and vehicle

Info

Publication number: CN215622297U
Application number: CN202121932161.6U
Authority: CN
Inventors: 张德磊; 郭志远; 谭晶晶; 张海建; 唐丽娟
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-25
Anticipated expiration: 2031-08-17

Abstract

The utility model provides a vehicle body floor assembly of a vehicle and the vehicle, the vehicle body floor assembly of the vehicle comprises: the automobile body floor is provided with a mounting cross beam and a mounting longitudinal beam below; a vehicle body mounting structure; the lower shell is used for supporting the battery module in the battery installation cavity; wherein, the casing is equipped with first supporting beam and support longeron down, and first supporting beam and/or support longeron are equipped with the module installation department, and the battery module is installed in the module installation department. From this, through installing the battery module in the module installation department to be connected first supporting beam and support longeron with automobile body floor respectively, the gravity of battery module can disperse to automobile body floor on through first supporting beam and/or support longeron, compares with prior art, can reduce the gravity that the casing received down, thereby can prevent casing bending damage down, and then can improve the life of casing down.

Description

Vehicle body floor assembly of vehicle and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle body floor assembly of a vehicle and the vehicle with the vehicle body floor assembly of the vehicle.

Background

In the related art, a conventional vehicle battery pack includes a battery module, an upper case, a lower case, left and right side members, etc., the conventional battery module is directly mounted on the lower case, and the gravity of the battery module is completely applied to the lower case. Because current lower shell structural strength is not enough, when battery module's gravity was applyed on the casing under completely, battery module's gravity exceeded the limit bearing capacity of casing down easily, caused the casing bending damage down easily to cause the life of casing to reduce down.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a vehicle body floor assembly of a vehicle, which can reduce the gravity applied to a lower housing, thereby preventing the lower housing from being bent and damaged, and further improving the service life of the lower housing.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a vehicle body floor assembly of a vehicle comprising: the automobile body floor is provided with a mounting cross beam and a mounting longitudinal beam below; the vehicle body mounting structure is connected with the vehicle body floor, and the vehicle body mounting structure and the vehicle body floor jointly define a battery mounting cavity which is open downwards; a lower case for closing an open end of the battery mounting cavity and supporting the battery module in the battery mounting cavity; the lower shell is provided with a first supporting beam and a supporting longitudinal beam, the first supporting beam is connected with the mounting beam, the supporting longitudinal beam is connected with the mounting longitudinal beam, the first supporting beam and/or the supporting longitudinal beam is provided with a module mounting part, and the battery module is mounted in the module mounting part.

In some examples of the utility model, the lower housing includes: preceding boundary beam, left boundary beam, back boundary beam and right roof beam, preceding boundary beam the left side roof beam the back boundary beam with the right roof beam head and the tail connect gradually in order to form the assembly space, preceding boundary beam the left side roof beam the back boundary beam the right side roof beam all with automobile body mounting structure connects.

In some examples of the present invention, the first support cross member and the support side member are each installed in the assembly space, and the first support cross member and the support side member divide the assembly space into a plurality of module installation areas.

In some examples of the present invention, two ends of the first supporting cross beam are connected to the left side beam and the right side beam, respectively, and two ends of the supporting longitudinal beam are connected to the front side beam and the rear side beam, respectively.

In some examples of the utility model, the front and/or rear side rail and/or the left and/or right side rail is provided with the module mounting portion.

In some examples of the present invention, the vehicle body floor assembly further includes: the water-cooling plate, first supporting beam with the support longeron is followed the direction of height of vehicle distributes in proper order, the water-cooling plate install in first supporting beam with support between the longeron, the water-cooling plate supports the battery module.

In some examples of the present invention, the water-cooling plate is provided with a plurality of avoidance holes corresponding to the module mounting portions, the avoidance holes divide the water-cooling plate into a plurality of module supporting regions, and the module mounting regions and the module supporting regions correspond to each other one by one.

In some examples of the utility model, the front end of the water-cooled panel is connected to the front side rail, and the rear end of the water-cooled panel is connected to the rear side rail.

In some examples of the utility model, the water cooling plate is an integral cooling plate.

Compared with the prior art, the vehicle body floor assembly of the vehicle has the following advantages:

according to the vehicle body floor assembly of the vehicle, the battery module is arranged on the module mounting part, and the first supporting cross beam and the supporting longitudinal beam are respectively connected with the vehicle body floor, so that the gravity of the battery module can be dispersed to the vehicle body floor through the first supporting cross beam and/or the supporting longitudinal beam.

Another object of the utility model is to propose a vehicle.

a vehicle comprises the vehicle body floor assembly of the vehicle.

The vehicle and the vehicle body floor assembly of the vehicle have the same advantages compared with the prior art, and the detailed description is omitted.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an exploded view of a vehicle body floor assembly according to an embodiment of the present invention;

FIG. 2 is an assembly view of a vehicle body floor and a vehicle body mounting structure according to an embodiment of the present invention;

FIG. 3 is a top view of the lower housing according to an embodiment of the present invention;

FIG. 4 is a schematic view of a first connecting member according to an embodiment of the utility model;

FIG. 5 is an exploded view of the lower housing according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is an enlarged schematic view at B of FIG. 5;

fig. 8 is an exploded view of a lower case, parts, and a battery module according to an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion of the lower housing according to an embodiment of the present invention;

fig. 10 is a schematic layout view of a battery module in a vehicle body floor assembly according to an embodiment of the present invention.

Description of reference numerals:

a vehicle body floor assembly 100;

a vehicle body floor 10; a battery mounting cavity 101; mounting the cross beam 102; mounting a longitudinal beam 103;

a vehicle body mounting structure 20; a left threshold beam 201; a right sill beam 202; a front cross member 203; a rear cross member 204;

a lower case 30; a first support beam 301; support stringers 302;

a first connecting member 303; the first liner 3031; a first fixing nut 3032;

a second connector 304; the second bush 3041;

a front side beam 307; left side beam 308; a rear edge rail 309; a right side rail 310; a fourth connection member 312; a module mounting portion 313; a module mounting area 314;

a battery module 40; a water-cooling plate 401; relief holes 4012; module support area 4013.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 10, a vehicle body floor assembly 100 of a vehicle according to an embodiment of the present invention includes: a vehicle body floor 10, a vehicle body mounting structure 20, and a lower case 30.

The vehicle body mounting structure 20 is connected to the vehicle body floor 10, and the vehicle body mounting structure 20 and the vehicle body floor 10 can jointly define a battery mounting cavity 101, and in a height direction of the vehicle, the battery mounting cavity 101 is arranged to be open downward, and the height direction of the vehicle can refer to an up-down direction in fig. 1. The battery module 40 may be disposed in the battery mounting cavity 101, the lower case 30 may close the open end of the battery mounting cavity 101, and the lower case 30 may support the battery module 40 disposed in the battery mounting cavity 101.

The lower shell 30 is provided with a first supporting cross beam 301 and a supporting longitudinal beam 302, in the height direction of the vehicle, a mounting cross beam 102 and a mounting longitudinal beam 103 are arranged below the vehicle body floor 10, the first supporting cross beam 301 can be connected with the mounting cross beam 102, the first supporting cross beam 301 can transmit force with the vehicle body floor 10 through the mounting cross beam 102, the supporting longitudinal beam 302 can be connected with the mounting longitudinal beam 103, and the supporting longitudinal beam 302 can transmit force with the vehicle body floor 10 through the mounting longitudinal beam 103.

It can be understood that, as shown in fig. 10, the number of the battery modules 40 may be multiple, a plurality of the battery modules 40 may be all disposed in the battery installation cavity 101, a plurality of the battery modules 40 may all provide power for the vehicle so that the vehicle can run, and the amount of power stored in the battery modules 40 may directly affect the driving range of the vehicle.

Among the prior art, traditional vehicle battery package includes battery module, goes up casing, lower casing, frame isotructure, goes up the casing and need reserve the clearance between automobile body structure spare, also needs the reserve clearance between frame and the automobile body structure spare to can lead to traditional vehicle battery package's space utilization to be lower, be unfavorable for increasing the whole package electric quantity of battery package, be unfavorable for increasing the continuation of the journey mileage of vehicle.

And in this application, battery installation cavity 101 can be injectd jointly to automobile body floor 10 and automobile body mounting structure 20, battery module 40 can be placed in battery installation cavity 101 to need not to set up traditional vehicle battery package's last shell structure (also can understand, can regard automobile body floor 10 as traditional vehicle battery package's last shell structure), can save the clearance between traditional vehicle battery package's last shell structure and the automobile body structure, can improve battery module 40's Z to space utilization (can be with the utilization ratio of improvement battery module 40 in the direction of height of vehicle).

And, the left and right frame structure of traditional vehicle battery package still need not set up (also can understand, can regard as the left and right frame structure of traditional vehicle battery package with automobile body mounting structure 20) to can save the clearance between the left and right frame structure of traditional vehicle battery package and the automobile body structure, can improve the Y of vehicle to space utilization, and then can arrange more battery module 40 on the vehicle, can increase battery module 40's total electric quantity.

In addition, through being connected the first supporting beam 301 that sets up on the lower casing 30 with the installation crossbeam 102 that sets up below the vehicle body floor 10, and through being connected the supporting longitudinal beam 302 that sets up on the lower casing 30 with the installation longitudinal beam 103 that sets up below the vehicle body floor 10, can be with the lower extreme at vehicle body floor 10 at the firm installation of lower casing 30, can guarantee the fastness of being connected of casing 30 and vehicle body floor 10 down, thereby can make the supporting battery module 40 that lower casing 30 can be reliable, can prevent that battery module 40 from coming off in the battery installation cavity 101, and then can play the effect of protection to battery module 40 through lower casing 30, can guarantee that battery module 40 has safe operational environment, can guarantee battery module 40's safety in utilization.

Further, the first supporting beam 301 and/or the supporting longitudinal beam 302 are provided with module mounting parts 313, that is, the first supporting beam 301 is provided with the module mounting parts 313 alone, or the supporting longitudinal beam 302 is provided with the module mounting parts 313 alone, or the first supporting beam 301 and the supporting longitudinal beam 302 are provided with the module mounting parts 313 simultaneously, preferably, the first supporting beam 301 and the supporting longitudinal beam 302 are provided with the module mounting parts 313 simultaneously, the battery module 40 can be mounted on the module mounting parts 313 on the first supporting beam 301, and the battery module 40 can also be mounted on the module mounting parts 313 on the supporting longitudinal beam 302. Further, the battery module 40 and the module mounting portion 313 of the first support cross member 301 may be connected to each other by bolts, and the battery module 40 and the module mounting portion 313 of the support side member 302 may be connected to each other by bolts.

When the battery module 40 is mounted to the module mounting portion 313 on the first support cross member 301, part of the weight of the battery module 40 may be dispersed to the vehicle body floor 10 through the module mounting portion 313 on the first support cross member 301, and the weight of the battery module 40 exerted on the lower case 30 may be reduced. When the battery module 40 is mounted to the module mounting parts 313 on the support side members 302, part of the weight of the battery module 40 can be dispersed to the vehicle body floor 10 through the module mounting parts 313 on the support side members 302, and the weight of the battery module 40 exerted on the lower case 30 can be reduced.

Through the module mounting part 313 of mounting the battery module 40 on the first supporting beam 301 and the module mounting part 313 on the supporting side member 302, part of the gravity of the battery module 40 can be dispersed on the vehicle body floor 10 through the first supporting beam 301, part of the gravity of the battery module 40 can be dispersed on the vehicle body floor 10 through the supporting side member 302, the remaining part of the gravity of the battery module 40 can be exerted on the lower case 30, the vehicle body floor 10 and the lower case 30 can support the battery module 40 together, the load of the lower case 30 can be reduced, so that the bending and damage of the lower case 30 can be prevented, and, compared with the prior art, because the lower case 30 is subjected to pressure reduction, the thickness of the lower case 30 can be appropriately reduced, the weight reduction of the lower case 30 is facilitated, and the lightweight design of the lower case 30 is realized.

From this, through installing battery module 40 in module installation department 313, and be connected first supporting beam 301 and support longeron 302 with vehicle body floor 10 respectively, the gravity of battery module 40 can disperse to vehicle body floor 10 on through first supporting beam 301 and/or support longeron 302, compared with the prior art, can reduce the gravity that lower casing 30 received, the gravity that lower casing 30 received is in the bearing range of lower casing 30, thereby can prevent lower casing 30 bending damage, and then can improve the life of vehicle battery package, and compared with the prior art, because lower casing 30 receives the pressure reduction, can suitably reduce lower casing 30 thickness, be favorable to lower casing 30 weight to alleviate, thereby realize the lightweight design of lower casing 30.

According to some specific embodiments of the present invention, as shown in fig. 1 and 2, the vehicle body mounting structure 20 may include a front cross member 203, a left rocker beam 201, a rear cross member 204, and a right rocker beam 202, wherein the front cross member 203, the left rocker beam 201, the rear cross member 204, and the right rocker beam 202 may be connected end to end in sequence, preferably, the front cross member 203, the left rocker beam 201, the rear cross member 204, and the right rocker beam 202 may be connected end to end in sequence by welding, for example, one end of the front cross member 203 may be connected to one end of the left rocker beam 201 by welding, the other end of the front cross member 203 may be connected to one end of the right rocker beam 202 by welding, the other end of the left rocker beam 201 may be connected to one end of the rear cross member 204 by welding, and the other end of the right rocker beam 202 may be connected to the other end of the rear cross member 204 by welding. And, the front cross member 203, the left rocker beam 201, the rear cross member 204, and the right rocker beam 202 may be welded to the lower case 30.

Optionally, the two ends of the mounting longitudinal beam 103 can be respectively welded to the front cross beam 203 and the rear cross beam 204, and the two ends of the mounting cross beam 102 can be respectively welded to the left threshold beam 201 and the right threshold beam 202, so that the mounting longitudinal beam 103, the mounting cross beam 102 and the vehicle body mounting structure 20 can be fixedly connected together, the mounting longitudinal beam 103 and the mounting cross beam 102 can be reliably supported in the battery mounting cavity 101, and a safe working environment can be provided for the battery module 40.

In some embodiments of the present invention, as shown in fig. 1, 3, 5, 8, and 9, the lower case 30 may include: the front side beam 307, the left side beam 308, the rear side beam 309 and the right side beam 310, the front side beam 307, the left side beam 308, the rear side beam 309 and the right side beam 310 may be connected in sequence end to form an assembly space, and the front side beam 307, the left side beam 308, the rear side beam 309 and the right side beam 310 may be connected to the vehicle body mounting structure 20. Specifically, the front side beam 307, the left side beam 308, the rear side beam 309 and the right side beam 310 may be welded and connected end to end in sequence, for example, one end of the front side beam 307 may be welded and connected to one end of the left side beam 308, the other end of the front side beam 307 may be welded and connected to one end of the right side beam 310, the other end of the left side beam 308 may be welded and connected to one end of the rear side beam 309, and the other end of the right side beam 310 may be welded and connected to the other end of the rear side beam 309. The front side beam 307, the left side beam 308, the rear side beam 309, and the right side beam 310 may be connected to the front cross member 203, the left rocker beam 201, the rear cross member 204, and the right rocker beam 202, respectively.

Further, in the height direction of the vehicle, the front side member 307 may be disposed below the front cross member 203, the front side member 307 and the front cross member 203 may be disposed to be connected by a fourth connecting member 312, the left side member 308 may be disposed below the left rocker member 201, the left side member 308 and the left rocker member 201 may be disposed to be connected by a fourth connecting member 312, the rear side member 309 may be disposed below the rear cross member 204, the rear side member 309 and the rear cross member 204 may be disposed to be connected by a fourth connecting member 312, the right side member 310 may be disposed below the right rocker member 202, and the right side member 310 and the right rocker member 202 may be disposed to be connected by a fourth connecting member 312.

It should be noted that the fourth connecting member 312 may include a fourth bushing and a bolt, a lower end of the fourth bushing may be fixedly connected to the side sill, an upper end of the fourth bushing may extend toward the upper side of the side sill, the bolt may pass through the fourth bushing, and the bolt may be threadedly connected to the vehicle body mounting structure 20 after passing through the fourth bushing. Of course, the fourth connecting member 312 may also be only a bolt, which is not limited in this application. The firmness of connection between the lower housing 30 and the vehicle body mounting structure 20 can be ensured by such an arrangement, so that the lower housing 30 can support the battery module 40 more reliably, the use safety of the battery module 40 can be further ensured, and the force can be transmitted to the vehicle body mounting structure 20 through the front side beam 307, the left side beam 308, the rear side beam 309 and the right side beam 310, so that the force on the vehicle body floor 10 can be uniform.

In some embodiments of the present invention, as shown in fig. 3 to 5, both the first supporting lateral beams 301 and the supporting longitudinal beams 302 may be installed in the assembly space, and the first supporting lateral beams 301 and the supporting longitudinal beams 302 divide the assembly space into a plurality of module installation areas 314. Wherein, the first supporting beam 301 may be installed in the assembly space, the first supporting beam 301 may extend in the width direction of the vehicle, the width direction of the vehicle may refer to the left and right direction in fig. 1, and by installing the first supporting beam 301 in the assembly space, the first supporting beam 301 may divide the assembly space into two sub-assembly spaces, and the two sub-assembly spaces may be spaced apart in the front and rear direction in fig. 1.

Also, the support side member 302 may be installed in the assembly space, the support side member 302 may be extended in a longitudinal direction of the vehicle, the longitudinal direction of the vehicle may be referred to as a front-rear direction in fig. 1, and the assembly space may be divided into four sub-assembly spaces by installing the support side member 302 and the first support cross member 301 in the assembly space.

Further, each of the first supporting cross member 301 and the supporting longitudinal member 302 may be provided in plurality in the vehicle body floor assembly 100, and in a specific embodiment of the present invention, as shown in fig. 3, the first supporting cross member 301 may be provided in one in the vehicle body floor assembly 100, and the supporting longitudinal members 302 may be provided in two in the vehicle body floor assembly 100, and one first supporting cross member 301 is provided to intersect with two supporting longitudinal members 302. Through the cooperation of the first supporting beam 301 and the two supporting longitudinal beams 302, as shown in fig. 3, the assembly space can be divided into six sub-assembly spaces, the sub-assembly spaces can be module installation regions 314, that is, the assembly space can be divided into six module installation regions 314, a plurality of battery modules 40 can be respectively installed in the six module installation regions 314, further, one battery module 40 is installed in one module installation region 314, the first supporting beam 301 and the supporting longitudinal beams 302 can support the battery modules 40 in the module installation regions 314, and therefore the installation firmness of the battery modules 40 can be further improved.

In some embodiments of the present invention, as shown in fig. 1 and 3, two ends of the first supporting cross beam 301 may be connected to the left side beam 308 and the right side beam 310, respectively, and two ends of the supporting longitudinal beam 302 may be connected to the front side beam 307 and the rear side beam 309, respectively. One end of the first supporting beam 301 may be connected to the left side beam 308, the first supporting beam 301 may be connected to the left side beam 308 to form a force transmission path, the other end of the first supporting beam 301 may be connected to the right side beam 310, the first supporting beam 301 may be connected to the left side beam 308 to form a force transmission path, the first supporting beam 301 is disposed between the left side beam 308 and the right side beam 310, and the first supporting beam 301 may provide a force transmission channel for a vehicle side collision process, in other words, when a vehicle undergoes a side collision, a collision force may be transmitted through the first supporting beam 301 and the supporting longitudinal beam 302. This arrangement can reduce the risk of the battery module 40 being squeezed in the battery mounting cavity 101 when the vehicle collides, so that the safety of use of the battery module 40 can be improved.

Similarly, one end of the support longitudinal beam 302 can be connected with the front side beam 307, the support longitudinal beam 302 can be connected with the front side beam 307 to form a force transmission path, the other end of the support longitudinal beam 302 can be connected with the rear side beam 309, the support longitudinal beam 302 can be connected with the rear side beam 309 to form a force transmission path, the support longitudinal beam 302 is arranged between the front side beam 307 and the rear side beam 309, and the support longitudinal beam 302 can provide a force transmission channel for the side collision process of the vehicle, in other words, when the vehicle is in side collision, the collision force can be transmitted through the support longitudinal beam 302 and the first support cross beam 301. This arrangement can further reduce the battery module 40 in the battery mounting cavity 101 from being pressed when the vehicle collides, so that the safety in use of the battery module 40 can be further improved.

In some embodiments of the present invention, as shown in fig. 1, 3, 5, the front side beam 307 and/or the rear side beam 309 and/or the left side beam 308 and/or the right side beam 310 may be provided with a module mounting portion 313, that is, at least one of the front side beam 307, the rear side beam 309, the left side beam 308, and the right side beam 310 may be provided with a module mounting portion 313, and preferably, the front side beam 307, the rear side beam 309, the left side beam 308, and the right side beam 310 are each provided with a module mounting portion 313. The battery module 40 can be mounted on the module mounting portion 313 of the front side member 307, the module mounting portion 313 of the rear side member 309, the module mounting portion 313 of the left side member 308, and the module mounting portion 313 of the right side member 310, and by mounting the battery module 40 on the front side member 307, the front side member 307 can support the battery module 40, and the front side member 307 is connected to the front cross member 203, and part of the gravity of the battery module 40 can be distributed to the vehicle body floor 10 through the front side member 307 and the front cross member 203 in order, and the weight borne by the lower case 30 can be reduced, so that the structural strength of the lower case 30 can be improved.

Similarly, by mounting the battery module 40 on the rear side member 309, the rear side member 309 can support the battery module 40, and the rear side member 309 is connected to the rear cross member 204, and a part of the gravity of the battery module 40 can be dispersed to the vehicle body floor 10 through the rear side member 309 and the rear cross member 204 in sequence, so that the weight borne by the lower case 30 can be reduced, and the structural strength of the lower case 30 can be improved.

Further, by installing the battery module 40 on the left side beam 308, the left side beam 308 can support the battery module 40, and the left side beam 308 is connected with the left threshold beam 201, and part of the gravity of the battery module 40 can be dispersed to the vehicle body floor 10 through the left side beam 308 and the left threshold beam 201 in sequence, so that the weight borne by the lower case 30 can be reduced, and the structural strength of the lower case 30 can be improved. By installing the battery module 40 on the right side sill 310, the right side sill 310 can support the battery module 40, and the right side sill 310 is connected to the right threshold beam 202, and part of the gravity of the battery module 40 can be dispersed to the vehicle body floor 10 through the right side sill 310 and the right threshold beam 202 in sequence, so that the weight borne by the lower housing 30 can be reduced, and the structural strength of the lower housing 30 can be improved.

In some embodiments of the present invention, as shown in fig. 8 and 9, the vehicle body floor assembly 100 may further include: the water-cooling plate 401, the first support cross member 301 and the support side member 302 may be sequentially distributed in the height direction of the vehicle, the water-cooling plate 401 may be installed between the first support cross member 301 and the support side member 302, and the water-cooling plate 401 may support the battery module 40. Wherein, water-cooling board 401 can set up the below at support longitudinal beam 302 to, water-cooling board 401 can set up the top at first support beam 301, and water-cooling board 401 can be used for adjusting battery module 40's temperature, so that battery module 40 works at suitable temperature range all the time, with the work efficiency and the life of improving battery module 40.

And, water-cooling board 401 can be connected with lower casing 30 through riveted mode, water-cooling board 401 is higher with the connection reliability that adopts rivet connection between the casing 30 down, when battery module 40 is connected with module installation department 313, battery module 40's bottom can the coating heat-conducting glue, heat-conducting glue can bond between water-cooling board 401 and battery module 40, heat-conducting glue can fill the clearance between water-cooling board 401 and the battery module 40, also can improve the heat conduction efficiency between water-cooling board 401 and the battery module 40, thereby can make the effect that water-cooling board 401 adjusted the temperature of battery module 40 better.

Further, the first supporting cross beam 301 and the supporting longitudinal beam 302 may be sequentially distributed along the height direction of the vehicle, and the first connecting member 303 extending in the height direction of the vehicle may penetrate through the first supporting cross beam 301 and the supporting longitudinal beam 302, and the first connecting member 303 may be connected to the mounting cross beam 102 after penetrating through the first supporting cross beam 301 and the supporting longitudinal beam 302. With the arrangement, the first supporting cross beam 301, the supporting longitudinal beam 302 and the mounting cross beam 102 can be connected together through the first connecting piece 303, so that the connection reliability among the first supporting cross beam 301, the supporting longitudinal beam 302 and the mounting cross beam 102 can be ensured.

Specifically, as shown in fig. 4, the first connector 303 may include a first bushing 3031, a first fixing nut 3032, and a bolt. One of the first support cross beam 301 and the support longitudinal beam 302 may be fixedly connected to the first bushing 3031, and the first bushing 3031 may penetrate the other one of the first support cross beam 301 and the support longitudinal beam 302 to be connected to the first fixing nut 3032.

For example, the first bushing 3031 may be fixedly connected with the first support beam 301, and the first bushing 3031 may penetrate the support longitudinal beam 302 to be disposed in connection with the first fixing nut 3032. Alternatively, the first bushing 3031 may be fixedly connected with the support longitudinal beam 302, and the first bushing 3031 may penetrate the first support cross beam 301 to be connected with the first fixing nut 3032.

Further, as shown in fig. 4, in the height direction of the vehicle, the support longitudinal beam 302 may be disposed above the first support cross beam 301, a lower end of the first bushing 3031 may be fixedly connected to the first support cross beam 301, an upper end of the first bushing 3031 may be disposed through the support longitudinal beam 302, and the upper end of the first bushing 3031 may extend toward the upper side of the support longitudinal beam 302, a portion of the first bushing 3031 extending toward the upper side of the support longitudinal beam 302 may be disposed in connection with the first fixing nut 3032, a bolt may be disposed through the first bushing 3031, and the bolt may be threadedly connected to the mounting cross beam 102 after passing through the first bushing 3031. Set up like this and can further guarantee first supporting beam 301, the connection reliability between supporting longitudinal beam 302 and the installation crossbeam 102, can avoid first supporting beam 301, supporting longitudinal beam 302 and installation crossbeam 102 separation, and, can also be convenient for link together first supporting beam 301, supporting longitudinal beam 302 and installation crossbeam 102, can guarantee the dismouting efficiency of casing 30 and automobile body floor 10 down, be favorable to satisfying the demand that the quick detach of battery module 40 was reprocessed, can reduce the cost of maintenance of battery module 40.

Further, as shown in fig. 3, the first supporting beam 301 may be further connected to the mounting beam 102 after passing through the first supporting beam 301 through a second connecting member 304 extending in the height direction of the vehicle, alternatively, the second connecting member 304 may include a second bushing 3041 and a bolt, a lower end of the second bushing 3041 may be fixedly connected to the first supporting beam 301, an upper end of the second bushing 3041 may extend toward the upper side of the first supporting beam 301, the bolt may be arranged through the second bushing 3041, and the bolt may be screwed to the mounting beam 102 after passing through the second bushing 3041.

It is understood that, in the height direction of the vehicle, the portion of the first supporting cross beam 301 corresponding to the supporting longitudinal beam 302 may be connected to the mounting cross beam 102 by the first connecting member 303, and the portion of the first supporting cross beam 301 not corresponding to the supporting longitudinal beam 302 may be connected to the mounting cross beam 102 by the second connecting member 304. Alternatively, a plurality of connection positions of the first support beam 301 to the mounting beam 102 may be provided at regular intervals in the extending direction of the first support beam 301. So set up and to guarantee first supporting beam 301 and installation crossbeam 102's fastness of being connected, can avoid first supporting beam 301 and installation crossbeam 102 to separate to, can make first supporting beam 301's atress even, can avoid first supporting beam 301 to buckle, split.

In some embodiments of the present invention, as shown in fig. 8, the water cooling plate 401 may be provided with a plurality of avoiding holes 4012 corresponding to the module mounting portion 313, the avoiding holes 4012 may be provided in plurality, the plurality of avoiding holes 4012 may divide the water cooling plate 401 into a plurality of module supporting areas 4013, and the plurality of module mounting areas 314 and the plurality of module supporting areas 4013 correspond one to one. Wherein, dodging hole 4012 can dodge module installation department 313, and the bolt can pass and dodge behind hole 4012 to be connected with module installation department 313 to make battery module 40 be connected with module installation department 313, dodge hole 4012 and can avoid module installation department 313 and water-cooling board 401 to take place to interfere.

Water-cooling board 401 is provided with a plurality of holes 4012 of dodging, and a plurality of holes 4012 of dodging can be separated on water-cooling board 401 for a plurality of modules support regional 4013, support regional 4013 and module installation region 314 through making the module and correspond, and module support regional 4013 can support battery module 40, and module support regional 4013 can with the heat transfer of battery module 40, and module support regional 4013 can guarantee that battery module 40 temperature is more suitable. Through separating water-cooling board 401 for a plurality of modules support regional 4013, a plurality of modules support regional 4013 can support battery module 40 respectively, and a plurality of modules support regional 4013 can guarantee that water-cooling board 401 atress is even to can prevent that water-cooling board 401 from buckling the damage, and then can improve automobile body floor assembly 100's operational reliability.

Further, the water-cooling plate 401 has a cooling flow channel, and a cooling medium can be filled in the cooling flow channel, and the cooling medium with different temperatures can exchange heat with the battery module 40 through the water-cooling plate 401, so as to adjust the temperature of the battery module 40. The water cooling plate 401 may form a flow passage area and a non-flow passage area, the flow passage area is configured as a cooling flow passage, a refrigerant may flow into the flow passage area, and the refrigerant may not flow into the non-flow passage area, the water cooling plate 401 may exchange heat with the battery module 40 through the flow passage area, and the water cooling plate 401 may be mounted between the first support cross beam 301 and the support longitudinal beam 302 through the non-flow passage area, and the water cooling plate 401 may be mounted on the vehicle body floor assembly 100 in a riveted connection manner, but the present invention is not limited thereto, for example, the water cooling plate 401 may also be mounted on the vehicle body floor assembly 100 in a screwed or welded connection manner, and the water cooling plate 401 may be fixedly connected with the vehicle body floor assembly 100, which may improve the thermal management capability of the vehicle battery pack.

In some embodiments of the utility model, as shown in fig. 8 and 9, the front end of the water-cooled panel 401 may be connected to the front side beam 307 and the rear end of the water-cooled panel 401 may be connected to the rear side beam 309. The front side beam 307 may include a first beam body and a second mounting portion, the first beam body may be used to be connected to the vehicle body mounting structure 20, the second mounting portion may be connected to the first beam body, the second mounting portion may be disposed behind the first beam body in a length direction of the vehicle (i.e., a front-rear direction of the vehicle), and a front end of the water-cooled panel 401 may be connected to the second mounting portion.

Alternatively, the second mounting portion and the first beam body may be disposed by welding, or the second mounting portion and the first beam body may be configured as an integrally formed part, preferably, the first beam body and the second mounting portion are configured as an integrally formed part, and the integrally formed part has high structural strength. Further, the front end of the water cooling plate 401 and the second mounting portion may be connected by bonding or the front end of the water cooling plate 401 and the second mounting portion may be connected by screwing in the longitudinal direction of the vehicle. So set up the installation stability that can guarantee water-cooling board 401, can avoid water-cooling board 401 to take place the drunkenness to can guarantee water-cooling board 401 and battery module 40's bonding fastness, can guarantee that water-cooling board 401 can the efficient temperature of adjusting battery module 40.

Also, the rear side member 309 may include a second member body that may be used in connection with the vehicle body mounting structure 20, and a fourth mounting portion that may be provided in connection with the second member body, and, in the length direction of the vehicle (i.e., the front-rear direction of the vehicle), may be provided in front of the first member body, and a rear end of the water-cooled panel 401 may be provided in connection with the fourth mounting portion.

Optionally, the fourth mounting portion and the second beam body may be disposed by welding, or the fourth mounting portion and the second beam body may also be configured as an integrally formed part, preferably, the second beam body and the fourth mounting portion are configured as an integrally formed part, and the integrally formed part has higher structural strength. In addition, the rear end of the water cooling plate 401 and the fourth mounting portion may be connected by bonding in the longitudinal direction of the vehicle, or the rear end of the water cooling plate 401 and the fourth mounting portion may be connected by screwing. So set up the installation stability that can guarantee water-cooling board 401, can avoid water-cooling board 401 to take place the drunkenness to can guarantee water-cooling board 401 and battery module 40's bonding fastness, can guarantee that water-cooling board 401 can the efficient temperature of adjusting battery module 40.

In some embodiments of the utility model, the water cooled plate 401 may be an integral cooling plate. Wherein, set up water-cooling board 401 into integral type cooling plate to can guarantee that the temperature is even in battery installation cavity 101. When the water-cooling plate 401 receives the impact at any position, construct water-cooling plate 401 formula cooling plate as an organic whole and also can guarantee that water-cooling plate 401 atress is even with water-cooling plate 401, can improve water-cooling plate 401's structural strength effectively to can prevent that water-cooling plate 401 is damaged, and then can avoid the refrigerant to reveal.

According to the vehicle of the embodiment of the utility model, including the vehicle body floor assembly 100, the battery module 40 is mounted on the module mounting portion 313, and the first supporting cross beam 301 and the supporting longitudinal beam 302 are respectively connected with the vehicle body floor 10, so that the gravity of the battery module 40 can be dispersed on the vehicle body floor 10 through the first supporting cross beam 301 and/or the supporting longitudinal beam 302, compared with the prior art, the gravity applied to the lower shell 30 can be reduced, the lower shell 30 can be prevented from being bent and damaged, and the service life of the vehicle battery pack can be prolonged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A vehicle body floor assembly (100) of a vehicle, comprising:

the automobile body floor (10), wherein a mounting cross beam (102) and a mounting longitudinal beam (103) are arranged below the automobile body floor (10);

the vehicle body mounting structure (20), the vehicle body mounting structure (20) is connected with the vehicle body floor (10), and the vehicle body mounting structure (20) and the vehicle body floor (10) jointly define a battery mounting cavity (101) which is open downwards;

a lower case (30), the lower case (30) being for closing an open end of the battery mounting cavity (101), and the lower case (30) being for supporting a battery module (40) within the battery mounting cavity (101); wherein,

lower casing (30) are equipped with first supporting beam (301) and support longeron (302), first supporting beam (301) with installation crossbeam (102) are connected, support longeron (302) with installation longeron (103) are connected, just first supporting beam (301) and/or support longeron (302) are equipped with module installation department (313), battery module (40) install in module installation department (313).

2. The vehicle body floor assembly (100) of the vehicle according to claim 1, wherein the lower case (30) includes: the automobile body mounting structure comprises a front side beam (307), a left side beam (308), a rear side beam (309) and a right side beam (310), wherein the front side beam (307), the left side beam (308), the rear side beam (309) and the right side beam (310) are sequentially connected end to form an assembly space, and the front side beam (307), the left side beam (308), the rear side beam (309) and the right side beam (310) are all connected with the automobile body mounting structure (20).

3. The vehicle body floor assembly (100) of claim 2, characterized in that the first support cross member (301) and the support side members (302) are both mounted in the assembly space, and the first support cross member (301) and the support side members (302) divide the assembly space into a plurality of module mounting areas (314).

4. The vehicle body floor assembly (100) of claim 2 or 3, wherein both ends of the first supporting cross member (301) are connected to the left side member (308) and the right side member (310), respectively, and both ends of the supporting longitudinal member (302) are connected to the front side member (307) and the rear side member (309), respectively.

5. Vehicle body floor assembly (100) according to claim 2, characterised in that the front side rail (307) and/or the rear side rail (309) and/or the left side rail (308) and/or the right side rail (310) are provided with the module mounting portion (313).

6. The vehicle body floor assembly (100) of the vehicle according to claim 3, further comprising: water-cooling board (401), first supporting beam (301) with support longeron (302) are followed the direction of height of vehicle distributes in proper order, water-cooling board (401) install in first supporting beam (301) with support between longeron (302), water-cooling board (401) support battery module (40).

7. The vehicle body floor assembly (100) of vehicle of claim 6, characterized in that, water-cooling board (401) be equipped with dodge hole (4012) that module installation department (313) corresponds, dodge hole (4012) be a plurality of, a plurality of dodge hole (4012) will water-cooling board (401) are separated for a plurality of modules support regional (4013), a plurality of modules installation region (314) with a plurality of modules support regional (4013) one-to-one.

8. The vehicle body floor assembly (100) of claim 6, wherein a front end of the water-cooled panel (401) is connected to the front side member (307), and a rear end of the water-cooled panel (401) is connected to the rear side member (309).

9. The vehicle body floor assembly (100) of claim 6, wherein the water cooled panel (401) is an integral cooling panel.

10. A vehicle, characterized by comprising a body floor assembly (100) of a vehicle according to any one of claims 1-9.