CN218055387U - Rear floor assembly and vehicle - Google Patents

Abstract

The utility model discloses a back floor assembly and vehicle, back floor assembly includes: the rear floor is provided with a mounting area for mounting a power battery pack, and a reinforcing shell which is provided with a mounting cavity communicated with the mounting area is used for mounting a charger; the supporting brackets are arranged above the rear floor, and the two groups of supporting brackets are respectively positioned at two sides of the mounting area; and two ends of the supporting beam are respectively supported on the two groups of supporting brackets, and the supporting beam is positioned above the power battery pack. According to the utility model discloses back floor assembly has formed three-layer mounting structure at the back floor, has solved the problem that power battery package can not expand, and satisfies the installation space demand that charges the machine simultaneously, through a supporting beam with the support bracket be connected, avoids power battery package to appear because of colliding with the scheduling problem condition such as explosion, firing.

Description

Rear floor assembly and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a rear floor assembly and have vehicle of this rear floor assembly is related to.

Background

With the rising of oil price, new energy vehicles become a trend, and the new energy vehicles and the oil vehicles are arranged on the rear floor differently, so the new energy vehicles need to be arranged on the rear floor again, for example, parts such as a power battery pack, a vehicle-mounted charger and the like are additionally arranged. The rear floor further needs to ensure that the power battery pack and the mounting point structure of the vehicle-mounted charger have enough rigidity, strength and fatigue performance under the condition that the space arrangement requirements of the power battery pack, the vehicle-mounted charger and other components are met.

In the related art, in the design of a rear floor assembly, the installation space of a power battery pack is too compact, so that the capacity of the power battery pack which can be actually installed is smaller, and when too many articles are in a trunk, the power battery pack is easily extruded, so that the risks of fire and explosion of the power battery pack are increased. Therefore, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a back floor assembly for satisfy the vehicle back floor and arrange the space demand of great power battery package, avoid the power battery package risk of colliding with, and satisfy rigidity, intensity and the demand of fatigue performance of mounting point.

According to the utility model discloses back floor assembly, include: the rear floor is provided with an installation area for installing a power battery pack, and is provided with a reinforcing shell, the reinforcing shell is provided with an installation cavity communicated with the installation area, and the installation cavity is used for installing a charger; the supporting brackets are arranged above the rear floor, and the two groups of supporting brackets are respectively positioned at two sides of the mounting area; and two ends of the supporting beam are respectively supported on the two groups of supporting brackets, and the supporting beam is positioned above the power battery pack.

According to the utility model discloses back floor assembly, the machine of charging and power battery package are installed respectively in installation cavity and installing zone for the installation that charges the machine can not occupy the installation space of power battery package, do benefit to the battery package that sets up great capacity, and set up a supporting beam and can bear the weight of battery package top in the top of power battery package, avoid power battery package pressurized deformation to cause the safety problem, and back floor assembly has satisfied the demand of mounting point rigidity, intensity and fatigue performance.

According to the utility model discloses back floor assembly still includes: the battery pack support is arranged above the rear floor and used for fixing the power battery pack, and the support bracket is connected above the battery pack support.

According to the utility model discloses back floor assembly, the support holder includes roof and two extension boards, two the spaced apart distribution of extension board, the upper end of extension board with the roof links to each other and the lower extreme with battery package support links to each other so that the roof with battery package support is spaced apart, the roof with the tip of back beam links to each other.

According to the utility model discloses back floor assembly, the roof is equipped with first connecting hole, first connecting hole be used for with a supporting beam detachably links to each other, and/or the extension board is equipped with the second connecting hole, the second connecting hole be used for with battery package support detachably links to each other.

According to the utility model discloses back floor assembly, the battery package support includes mounting panel and fixed turn-ups, the mounting panel is equipped with the battery package mounting hole, the battery package mounting hole be used for with power battery package detachably links to each other, fixed turn-ups be used for with the back floor links to each other.

According to the utility model discloses back floor assembly still includes: the rear floor longitudinal beam rear section is connected to the lower side of the rear floor, and the fixed flanging is sequentially overlapped and welded with the rear floor and the rear floor longitudinal beam rear section.

According to the utility model discloses back floor assembly, battery package support is two, and two battery package support is located respectively installation area's Y is to both sides, the support holder be two sets of and install respectively in installation area's Y is to both sides, and is two sets of the support holder is connected respectively in two the top of battery package support.

According to the utility model discloses back floor assembly, the back floor is equipped with the mounting hole, strengthen the shell install in mounting hole department and protrusion down, the installation cavity is in mounting hole department with the installation area intercommunication, the bottom on back floor still is equipped with back floor longeron, back floor longeron at least part support in strengthen the bottom of shell.

According to the utility model discloses back floor assembly, the machine support that charges is installed to the enhancement shell, the machine support that charges is located the installation intracavity just be used for with machine detachably links to each other charges.

The utility model discloses still provide a vehicle.

According to the utility model discloses the vehicle is provided with any one of the above-mentioned embodiment back floor assembly.

The vehicle and the rear floor assembly have the same advantages as the prior art, and are not described in detail herein.

Additional aspects and advantages of the invention 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 invention.

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 schematic structural view of a rear floor assembly according to an embodiment of the present invention;

FIG. 2 is a top view of a rear floor assembly according to an embodiment of the present invention;

FIG. 3 is a bottom view of a rear floor assembly according to an embodiment of the present invention;

fig. 4 is a left side view of a rear floor assembly according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a support bracket in a rear floor assembly, according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a battery pack holder in a rear floor assembly according to an embodiment of the present invention;

fig. 7 is an assembly schematic diagram of a reinforcing shell and a charger bracket in a rear floor assembly according to the embodiment of the present invention.

Reference numerals are as follows:

the rear floor assembly 100 is provided with a rear floor,

a rear floor 1, a support bracket 2, a top plate 21, a first reinforcing rib 211, a first connecting hole 212, a support plate 22, a second reinforcing rib 221, a second connecting hole 222, a support beam 3, a third connecting hole 31, a reinforcing shell 4, a positioning hole 41, a lap-joint flange 42, a battery pack bracket 5, a mounting plate 51, a battery pack mounting hole 511, a fixing flange 52, a self-welding joint 53,

a rear floor right longitudinal beam rear section 61, a rear floor left longitudinal beam rear section 62, a rear floor left longitudinal beam 63, a rear floor right longitudinal beam 64, a rear floor rear cross beam 8,

the battery charger comprises a first charger support 91, a second charger support 92 and a fourth connecting hole 93.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e., the X direction; the left and right directions are the transverse direction of the vehicle, namely the Y direction; the up-down direction is the vertical direction of the vehicle, i.e. the Z direction.

A rear floor assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-4, including: rear floor 1, support bracket 2 and support beam 3. The rear floor 1 is provided with an installation area for installing a power battery pack, the rear floor 1 is provided with a reinforcing shell 4, the reinforcing shell 4 is provided with an installation cavity communicated with the installation area, and the installation cavity is used for installing a charger. The installation region is formed above the rear floor 1, namely the power battery pack can be installed above the rear floor 1, the installation cavity is formed below the installation region, and the installation cavity is opened upwards to be communicated with the installation region, so that the installation region for installing the power battery pack and the installation cavity for installing the charger are arranged upwards along the Z direction.

Therefore, when the power battery pack is actually installed, the power battery pack is installed above the rear floor 1, and the charger is installed on the reinforcement shell 4 and can be electrically connected with the power battery pack, so that the power battery pack and the charger can be installed respectively, the charger cannot occupy the installation space of the power battery pack, and the power battery pack with larger capacity is favorably arranged. Wherein, strengthen shell 4 and can adopt the great material of structural strength to make, do benefit to the structural strength who improves back floor 1, the difficult circumstances such as back floor 1 deformation damage that appear, and can support power battery package or Z ascending other structures to a certain extent, and strengthen shell 4 and not only inject the installation cavity that installs the machine that charges, realize the independent installation of machine that charges, and strengthen shell 4 and can play the effect of protection to the machine that charges, guarantee to charge the difficult impairement of machine.

Therefore, the reinforcing shell 4 is additionally arranged on the rear floor 1, the installation area of the rear floor 1 can meet the requirement for installing the power battery pack, and meanwhile, the installation cavity of the reinforcing shell 4 also provides an independent arrangement space for the charger, therefore, the installation of the charger does not need to occupy the installation area of the power battery pack, the power battery pack can also expand the battery capacity according to redundant space, if multiple parts of space above the rear floor 1 can be used for installing the power battery pack, if the embodiment can meet the requirement of the power battery pack with the mass of 160kg for the arrangement space, the capacity of the power battery pack is increased.

And, the support bracket 2 is installed above the rear floor 1. That is to say, the two sets of support brackets 2 are respectively located at two sides of the installation area, and after the power battery pack is installed in the installation area, the support brackets 2 are located at two sides of the power battery pack. As shown in fig. 1, the power battery pack is installed in the installation area, and two support brackets 2 are disposed on one side of the power battery pack, the two support brackets 2 on the one side are used as the same group, and two support brackets 2 are also disposed on the other side of the power battery pack, and the two support brackets 2 on the one side are used as the other group, so that both ends of the support beam 3 can be respectively supported by the two groups of support brackets 2, that is, one end of the support beam 3 is supported by one group of support brackets 2 on one side of the power battery pack, and the other end of the support beam 3 is supported by the other group of support brackets 2 on the other side of the power battery pack, so that the support beam 3 is in a stable support state.

Specifically, the number of the supporting beams 3 may be two, and the two sets of four supporting brackets 2 correspond to each other in the Y direction, that is, the two supporting brackets 2 on the left side and the two supporting brackets on the right side are respectively opposite to each other in the Y direction, so that the left ends of the two supporting beams 3 are respectively supported on the two supporting brackets 2 on the left side, and meanwhile, the right ends of the two supporting beams 3 are respectively supported on the two supporting brackets 2 on the right side, thereby ensuring that both sides of the two supporting beams 3 are effectively supported.

Among them, the support beam 3 may be fabricated of square steel, so that the support beam 3 has high structural rigidity and strength to withstand the load from the Z-direction. It should be noted that the support beam 3 is configured as a rectangular plate, and the end of the support beam 3 is provided with a third connecting hole 31, so that the support beam 3 can be connected to the support bracket 2 by a connecting member, such as a bolt, penetrating through the third connecting hole 31.

Therefore, the supporting beam 3 can be connected with the supporting brackets 2 at two sides in the Y direction above the power battery pack, the supporting beam 3 can be used for supporting the luggage cover plate above the power battery pack, the weight of articles above the luggage cover plate can be borne by the supporting beam 3, and part of the weight of the articles can be transferred through the supporting brackets 2 at two sides. Wherein, the less downward power battery package that can not extrude of the deformation volume of a supporting beam 3 to guarantee that power battery package does not receive the pressure that comes from the top or receives less pressure, and then avoid power battery package because receive the circumstances that collides with or pressure oversize appears on fire and explodes.

Thus, the rear floor assembly 100 of the present invention forms a three-layer mounting structure. Specifically, auxiliary parts such as the supporting bracket 2, the supporting beam 3 and a luggage case cover plate are arranged as a first layer structure; the installation space of the power battery pack and the auxiliary parts are used as a second layer structure, and the charger and the auxiliary parts thereof included in the reinforcing shell 4 are used as a third layer structure. Every layer structure all connects in Z ascending order, can guarantee that the structure of every layer all includes sufficient installation space to solve the problem that power battery package can not expand because of the space is not enough, and provided the installation space of machine that charges simultaneously. And, through supporting beam 3 and being connected with support bracket 2, provide the guarantee for the structural strength of back floor assembly 100, and protected power battery package can not take place to explode because of the scheduling problem that collides with, the condition such as on fire.

According to the utility model discloses back floor assembly 100 charges machine and power battery package and installs respectively in installation cavity and installing zone for the installation that charges the machine can not occupy the installation space of power battery package, does benefit to the power battery package that sets up great capacity, and sets up a supporting beam 3 in the top of power battery package and can bear the weight of power battery package top, avoids power battery package pressurized deformation to cause the safety problem, and back floor assembly 100 has satisfied the demand of mounting point rigidity, intensity and fatigue property.

In some embodiments, the rear floor assembly 100 further includes a battery pack bracket 5. The battery pack support 5 is arranged above the rear floor 1 and used for fixing a power battery pack, and the support bracket 2 is connected above the battery pack support 5. It can be understood that the power battery pack is fixed through the battery pack support 5 when being installed in the installation area, so that the power battery pack is ensured not to shake, the power battery pack can be stably installed in the installation area, the problems that the power battery pack shakes and the like are avoided, and the safety of the system is improved.

In some embodiments, the support bracket 2 includes a top plate 21 and two support plates 22, the two support plates 22 are spaced apart, the upper ends of the support plates 22 are connected to the top plate 21 and the lower ends are connected to the battery pack bracket 5 to space the top plate 21 from the battery pack bracket 5, and the top plate 21 is connected to the end of the support beam 3. It should be noted that the top plate 21 and the two support plates 22 can be integrally formed to ensure the rigidity and strength of the support frame 2.

As shown in fig. 2 and 5, the top plate 21 is configured as a rectangular plate, the support plates 22 are configured as L-shaped plates, and the tops of the two support plates 22 are respectively connected to two ends of the top plate 21, so that the support frame 2 is approximately shaped like a Chinese character 'ji', i.e., the top plate 21 is spaced apart from the battery pack support frame 5, and the two support plates 22 can be fixedly connected to the battery pack support frame 5. In the embodiment, two supporting brackets 2 are respectively arranged at two sides of the power battery pack in the Y direction, and the two supporting brackets 2 at each side are respectively arranged at 1/4 and 3/4 of the power battery pack in the X direction, so that the structure is firm, the stress is uniform, and the supporting beams 3 supported by the two supporting brackets 2 can respectively support objects above the power battery pack in the 1/4 and 3/4 of the power battery pack in the X direction.

Of course, the number of the support brackets 2 is not limited in this embodiment, that is, the installation position of the support bracket 2 in the X direction of the battery pack is not limited, and a reasonable number of support brackets 2 may be set according to specific situations.

And, reinforcing ribs may be provided on the middle portions of the top plate 21 and the two brackets 22, such as a horizontal first reinforcing rib 211 provided centrally on the top plate 21, a second reinforcing rib 221 provided centrally on the brackets 22, and the first reinforcing rib 211 connected to the second reinforcing rib 221. Thereby improving the structural stability of the support stent 2 and the stiffness of the support stent 2 in the Z-direction, and thus improving the load-carrying capacity of the overall structure of the support stent 2.

In some embodiments, the top plate 21 is provided with a first coupling hole 212 for detachably coupling with the support beam 3, and/or the support plate 22 is provided with a second coupling hole 222 for detachably coupling with the battery pack holder 5. As shown in fig. 2 and 5, it should be noted that a first connection hole 212 is formed on the top plate 21 of each support bracket 2, and the first connection hole 212 is located opposite to the third connection hole 31 of the support beam 3, so that the support bracket 2 can be detachably connected to the support beam 3 by bolts penetrating through the first connection hole 212 and the third connection hole 31.

And, the bottom of the support plate 22 is provided with the second connecting hole 222, and one support plate 22 is provided with one second connecting hole 222, i.e., one support bracket 2 is provided with two second connecting holes 222. Thus, the support bracket 2 can be detachably coupled to the battery pack bracket 5 by bolts penetrating the second coupling holes 222.

It can be understood that, the first connection hole 212 and the second connection hole 222 on the support bracket 2 are detachably connected in a bolt connection manner when being connected with the support beam 3 and the battery pack bracket 5, so that the convenience of installation is improved, and subsequent parts such as the support bracket 2 and the support beam 3 can be replaced quickly. From this, efficiency is higher when subsequently maintaining and overhauing to reduce the later maintenance cost, and a plurality of second connecting holes 222 that just set up all utilize bolted connection still can improve structural connection's stability with battery package support 5.

In some embodiments, the battery pack bracket 5 includes a mounting plate 51 and a fixing flange 52, the mounting plate 51 is provided with a battery pack mounting hole 511, the battery pack mounting hole 511 is used for detachably connecting with a power battery pack, and the fixing flange 52 is used for connecting with the rear floor 1. It should be noted that, as shown in fig. 6, one battery pack bracket 5 is provided with two fixing flanges 52, both the two fixing flanges 52 are connected with the mounting plate 51 in a bending manner, the two fixing flanges 52 are connected to both sides of the mounting plate 51, and the mounting plate 51 protrudes upwards from the two fixing flanges 52, that is, the height of the mounting plate 51 in the Z direction is slightly greater than that of the mounting plate of the fixing flanges 52.

Specifically, as shown in fig. 6, 10 battery pack mounting holes 511 are provided on the mounting plate 51, wherein hole structures facing the battery pack mounting holes 511 may be provided on both the support plate 22 of the support bracket 2 and the side edge of the power battery pack, so that the battery pack mounting holes 511 may be used for detachably connecting the power battery pack and the support bracket 2.

During actual design, the fixing flange 52 can be provided with irregular plates with multiple convex-concave structures distributed in sequence, for example, multiple concave areas and multiple convex areas are distributed in a staggered manner in the length direction of the fixing flange 52, so that the structural strength of the fixing flange 52 is increased, structural deformation of the fixing flange 52 caused by overlarge bearing force of the mounting plate 51 is prevented, and the structural stability of the battery pack support 5 is improved.

And, the self-welding tabs 53 are provided at the ends of the battery pack holder 5, it can be understood that the self-welding tabs 53 of the battery pack holder 5 are configured as a closed form crimp, so that the battery pack holder 5 is changed from a pointed end to a rounded end, which can reduce stress concentration, thereby enhancing the structural strength of the ends of the battery pack holder 5 and effectively supporting the weight of the power battery pack.

In some embodiments, the rear floor assembly 100 further comprises: the rear floor longitudinal beam rear section is connected to the lower side of the rear floor 1, and the fixing flange 52, the rear floor 1 and the rear floor longitudinal beam rear section are sequentially overlapped and welded. It should be noted that, as shown in fig. 3, the rear floor longitudinal beam rear section includes a rear floor right longitudinal beam rear section 61 and a rear floor left longitudinal beam rear section 62, wherein the rear floor right longitudinal beam rear section 61 and the rear floor left longitudinal beam rear section 62 are attached to and welded to the rear floor 1, and the structures of the rear floor right longitudinal beam rear section 61 and the rear floor left longitudinal beam rear section 62 are designed to follow the shape of the rear floor 1 to be attached to the rear floor 1, and the shapes of the two rear floor longitudinal beam rear sections are approximately long and are distributed at the bottom of the power battery pack and are welded to the rear floor 1 at both sides in the Y direction.

It can be understood that, the rear floor longitudinal beam rear section, the rear floor 1 and the fixing flange 52 of the battery pack bracket 5 are stacked in sequence and connected by welding, which can further improve the rigidity and strength of the rear floor assembly 100, and further stabilize and support the weight of the power battery pack and the weight of luggage articles transferred through both sides of the power battery pack.

In some embodiments, there are two battery pack supports 5, the two battery pack supports 5 are respectively located at two sides of the mounting area in the Y direction, two sets of support supports 2 are respectively mounted at two sides of the mounting area in the Y direction, and the two sets of support supports 2 are respectively connected above the two battery pack supports 5. As shown in fig. 2, one battery pack support 5 is provided on each of the two Y-direction sides of the power battery pack, wherein the battery pack support 5 is configured as a strip, and the two battery pack supports 5 have the same length in the X-direction of the power battery pack, wherein the battery pack mounting hole 511 on the battery pack support 5 can be connected with the second connecting hole 222 of the support bracket 2 by a bolt, so as to detachably connect the support bracket 2 with the battery pack support 5.

And when actually designing, can be with two battery package support 5 symmetric distribution in the both sides of back floor 1 top, and two battery package supports 5 can be connected fixedly with the both sides of power battery package respectively to guarantee that power battery package both sides are all stable atress, thereby avoid one side atress unstability of power battery package the condition that rocks to appear. Wherein, be equipped with two support holder 2 above every battery package support 5, for support holder 2 provides the installation fit point, improves the load-carrying capacity of support holder 2 and supporting beam 3.

In some embodiments, the rear floor 1 is provided with mounting holes, where the reinforcement shell 4 is mounted and protrudes downwards, where the mounting cavity communicates with the mounting area. Wherein, the mounting hole is the through-hole that sets up on the floor 1 of back, and the mounting hole is along Z to penetrating through floor 1 of back, and strengthens shell 4 and construct the bowl form to make strengthen shell 4 and prescribe a limit to the installation cavity that opens up, simultaneously, form overlap joint turn-ups 42 in the upside border department of strengthening shell 4, overlap joint turn-ups 42 turns up for strengthening shell 4.

Therefore, in actual installation, the reinforcing shell 4 is extended into the mounting hole, so that the bottom wall of the reinforcing shell 4 extends downwards from the mounting hole, the lap-joint flanging 42 of the reinforcing shell 4 is supported at the edge of the mounting hole, the lap-joint flanging 42 and the upper surface of the rear floor 1 can be welded and fixed, spot-welding structural glue can be smeared at the welding position of the lap-joint flanging 42 and the rear floor 1, and the reinforcing shell 4 is ensured to be tightly connected with the rear floor 1.

As shown in fig. 7, two positioning holes 41 are formed in the reinforcing shell 4, and the positioning holes 41 are formed in the bottom wall of the installation cavity, so that when the charger is installed in the installation cavity, the charger and the two positioning holes 41 can be in positioning fit, so that the charger can be quickly positioned and installed in the installation cavity, and the installation efficiency of the charger is improved.

And the bottom of the rear floor 1 is also provided with a rear floor longitudinal beam, and at least part of the rear floor longitudinal beam is supported at the bottom of the reinforcing shell 4. The rear floor longitudinal beams comprise rear floor left longitudinal beams 63 and rear floor right longitudinal beams 64, the rear floor left longitudinal beams 63 and the rear floor right longitudinal beams 64 are distributed in the Y direction at intervals and are connected with the reinforcing shell 4 in a welding mode, and the rear floor left longitudinal beams and the reinforcing shell 4 can be used for supporting the reinforcing shell 4. During actual design, the reinforcing shell 4 is arranged in the middle area of the rear floor 1, the rear floor left longitudinal beam 63 and the rear floor right longitudinal beam 64 both extend upwards along the X direction, and a concave bending area is formed in the middle position, so that the bending area is supported at the bottom of the reinforcing shell 4, the rear floor 1 is reinforced, and the reinforcing shell 4 is stably supported.

As shown in fig. 3, the number of the rear floor longitudinal beams is four, and the four rear floor longitudinal beams are sequentially a rear floor right longitudinal beam rear section 61, a rear floor left longitudinal beam 63, a rear floor right longitudinal beam 64 and a rear floor left longitudinal beam rear section 62, and the four rear floor longitudinal beams are sequentially distributed in the Y direction and are spaced in parallel. And bending areas are formed in the middle parts of the left rear floor longitudinal beam 63 and the right rear floor longitudinal beam 64 so as to support the bottom of the reinforcing shell 4. The number of the rear floor longitudinal beams in this embodiment may also be adjusted according to the weight of the reinforcing shell 4 and the charger, for example, if the weight of the reinforcing shell 4 is large, a plurality of rear floor longitudinal beams may be added for supporting. In this regard, the present embodiment is not limited.

In some embodiments, a rear floor rear cross beam 8 is further disposed at the bottom of the rear floor 1, the rear floor rear cross beam 8 is welded below the rear side of the rear floor 1, and the rear floor rear cross beam 8 is connected to the rear ends of the four rear floor longitudinal beams, so that the four rear floor longitudinal beams can support the rear floor 1 through the supporting function of the rear floor rear cross beam 8.

Specifically, as shown in fig. 3, the rear floor right longitudinal beam rear section 61, the rear floor left longitudinal beam 63, the rear floor right longitudinal beam 64 and the rear floor left longitudinal beam rear section 62 all extend along the X direction and are respectively connected with the rear floor rear cross beam 8 in a welding manner, so as to jointly construct a frame structure which is supported below the rear floor 1, thereby facilitating the improvement of the structural stability of the rear floor 1 and facilitating the installation and fixation of the power battery pack with larger capacity.

In some embodiments, the bottom of the rear floor 1 is further provided with a rear floor left front connecting plate and a rear floor right front connecting plate. It should be noted that the rear floor left front connecting plate and the rear floor right front connecting plate cannot be connected into an integral structure due to the particularity of the arrangement of the power battery pack accessories, therefore, in the embodiment, only the left front part and the right front part of the rear floor are reserved, and the rear floor left front connecting plate and the rear floor right front connecting plate are connected with the rear floor 1 in a welding manner, so that the torsional rigidity of the front part of the rear floor 1 is improved, and the requirement of durability is met. Wherein, the left front connecting plate of back floor and the right front connecting plate components of a whole that can function independently disconnection of back floor have still realized to a certain extent and have lightened the purpose.

In some embodiments, the reinforcement shell 4 is equipped with a charger bracket, which is located in the mounting cavity and is adapted to be detachably connected to the charger. It should be noted that, as shown in fig. 7, the charger support includes a first charger support 91 and a second charger support 92, the two charger supports are connected to the installation cavity in the reinforcement shell 4 by welding, and the two charger supports are respectively distributed at two ends of the reinforcement shell 4 in the X direction.

Wherein, two charge machine supports all laminate with the inner wall of installation cavity, two charge machine supports all follow the shape design with the enhancement shell 4 in the installation cavity promptly, and all be provided with fourth connecting hole 93 on every charge machine support. Therefore, the charger can be detachably connected with the charger support through the connecting piece penetrating through the fourth connecting hole 93, and the charger can be conveniently and quickly mounted on or detached from the charger support.

And, first charger support 91 is equipped with two and runs through the muscle, and second charger support 92 is equipped with one and runs through the muscle, all can promote the rigidity of charger support in the Z direction.

The utility model discloses still provide a vehicle.

According to the utility model discloses vehicle, set up any one of the above-mentioned back floor assembly 100, can form the three-layer mounting structure that Z upwards arranged in proper order. The first layer structure is used for placing a cover plate of the luggage case, can bear the weight of articles in the luggage case, and plays a role in protecting the power battery pack. The second floor structure is used for placing power battery package, and power battery package can occupy the one deck installation area alone promptly, has satisfied the PHEV motorcycle type and has arranged the space demand of great power battery package to back floor 1, and has avoided the risk that power battery package takes place to collide with. The third layer structure is used for placing a vehicle-mounted charger, so that the requirement of the charger can be added under the condition of meeting the requirement of installing the power battery pack. It can be understood that, the three-layer mounting structure of the rear floor has different functions of each layer of structure, meets the requirement of the power battery pack on spatial arrangement, and also meets the requirement of structural rigidity through various longitudinal beams and supports.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A rear floor assembly, comprising:

the power battery pack fixing structure comprises a rear floor (1), wherein an installation area for installing a power battery pack is formed in the rear floor (1), a reinforcing shell (4) is arranged on the rear floor (1), the reinforcing shell (4) is provided with an installation cavity communicated with the installation area, and the installation cavity is used for installing a charger;

the supporting brackets (2) are arranged above the rear floor (1), and the two groups of supporting brackets (2) are respectively positioned at two sides of the installation area;

the two ends of the supporting beam (3) are respectively supported by the two groups of supporting brackets (2), and the supporting beam (3) is positioned above the power battery pack.

2. The rear floor assembly of claim 1, further comprising: battery package support (5), battery package support (5) install in the top on back floor (1) just is used for fixing the power battery package, support holder (2) connect in the top of battery package support (5).

3. The rear floor assembly according to claim 2, wherein the support bracket (2) comprises a top plate (21) and two support plates (22), the two support plates (22) being spaced apart, the support plates (22) being connected at their upper ends to the top plate (21) and at their lower ends to the battery pack bracket (5) such that the top plate (21) is spaced apart from the battery pack bracket (5), the top plate (21) being connected to the ends of the support beam (3).

4. The rear floor assembly according to claim 3, wherein the top plate (21) is provided with a first connecting hole (212), the first connecting hole (212) being adapted to be detachably connected to the support beam (3), and/or the support plate (22) is provided with a second connecting hole (222), the second connecting hole (222) being adapted to be detachably connected to the battery pack holder (5).

5. The rear floor assembly according to claim 2, wherein the battery pack bracket (5) comprises a mounting plate (51) and a fixing flange (52), the mounting plate (51) is provided with a battery pack mounting hole (511), the battery pack mounting hole (511) is used for being detachably connected with the power battery pack, and the fixing flange (52) is used for being connected with the rear floor (1).

6. The rear floor assembly of claim 5, further comprising: the rear floor longitudinal beam rear section is connected to the lower side of the rear floor (1), and the fixed flanging (52), the rear floor (1) and the rear floor longitudinal beam rear section are sequentially overlapped and welded.

7. The rear floor assembly according to claim 2, wherein the battery pack supports (5) are two and located on the two sides of the mounting area in the Y direction, the support supports (2) are two and located on the two sides of the mounting area in the Y direction, and the two support supports (2) are connected above the two battery pack supports (5).

8. Rear floor assembly according to claim 1, characterized in that the rear floor (1) is provided with mounting holes where the reinforcement shell (4) is mounted and protrudes downwards, where the mounting cavity communicates with the mounting area, and the bottom of the rear floor (1) is further provided with rear floor stringers, at least part of which are supported to the bottom of the reinforcement shell (4).

9. A rear floor assembly according to claim 1, characterized in that the reinforcement shell (4) is equipped with a charger bracket, which is located in the mounting cavity and is adapted to be detachably connected to the charger.

10. A vehicle, characterized in that a rear floor assembly (100) according to any of claims 1-9 is provided.

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