CN216185521U - Middle and rear floor board structure - Google Patents

Abstract

The utility model relates to a middle and rear floor structure which comprises a flat floor, a rear floor, a seat pit, a middle floor frame structure and a battery pack, wherein the middle floor frame structure comprises a beam component and a longitudinal beam component, the battery pack is arranged below the beam component, a flat floor is arranged above the beam component, the flat floor, the rear floor and the seat pit are sequentially connected, and the beam component, the battery pack, the flat floor, the rear floor and the seat pit are all supported by the longitudinal beam component. Compared with the prior art, the floor has the advantages that the floor realizes light weight and universal design; the battery has large space and high performance, and the rigidity of the whole vehicle is enhanced by utilizing the structural strength of the battery; the rear flat floor and the seat can be turned into the pit; the modular design has advantages such as different motorcycle types deformability.

Description

Middle and rear floor board structure

Technical Field

The utility model relates to the field of vehicles, in particular to a middle-rear floor structure.

Background

In the middle and rear floor structure of the vehicle body, the middle floor and the rear floor can not be flush, and the cross beams of the middle floor are uniformly distributed in the vehicle, so that the aim of ensuring that the whole vehicle can achieve the five-star safety target of ENCAP and CNCAP can be achieved, particularly, the threshold bears the maximum load when the side bumps and the column bumps, and the cross beams in the vehicle bear the force transfer.

However, for a pure electric vehicle, generally, the battery is arranged below the front middle floor and between the battery pack mounting beam and the floor, and in order to meet the requirement of endurance mileage, the power battery needs to be arranged as much as possible, and in order to ensure the rigidity and strength of the battery pack mounting point, the size of a cavity formed by the battery pack mounting beam and the floor also needs to be as large as possible, so that the floor of the electric vehicle needs to be arranged on the upper side, and the downward movement is severely limited.

The cross beam for installing the battery pack and the floor are supported by the doorsill, so that a certain fall exists between the cross beam and the doorsill, the coincidence degree between the cross beam and the doorsill is low, and the realization difficulty of the collision star level is high. In addition, the front collision force transfer path can transfer force basically through the middle longitudinal beam and the threshold beam, and the cross beam in the area cannot be used universally.

In addition, for the rear floor area of the vehicle body, the cross beams are generally arranged up and down for being used as a storage space and the like, and more seats are increasingly required for the current vehicle to meet the common trip of more passengers, so that a flexible and changeable vehicle body structure capable of increasing the number of seats is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a middle and rear floor frame which realizes a large sitting space and a large storage space, is flexible and changeable and enhances the rigidity of the whole vehicle.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a well back ground plate frame constructs, includes flat floor, back floor, seat hole, well ground plate frame structure and battery package, well ground plate frame structure includes beam assembly and longeron subassembly, the battery package is installed beam assembly's below, flat floor is installed beam assembly's top, flat floor, back floor and seat hole connect gradually, beam assembly, battery package, flat floor, back floor and seat hole all receive the longeron subassembly supports.

Further, the flat floor is used for mounting seats in a second row and seats in a third row, and the seat pit is used for mounting seats in a fourth row.

Furthermore, a seat long slide rail is laid on the upper surface of the flat floor.

Further, the longitudinal beam assembly is composed of a first threshold beam and a second threshold beam, the beam assembly comprises a first middle floor beam, a second middle floor beam and a third middle floor beam, and the two ends of the first middle floor beam, the second middle floor beam and the third middle floor beam are respectively connected with the first threshold beam and the second threshold beam through middle floor beam connecting supports.

Furthermore, the first threshold beam and the second threshold beam are provided with longitudinal beam battery pack fixing points, the first middle floor cross beam, the second middle floor cross beam and the third middle floor cross beam are provided with cross beam battery pack fixing points, and the battery packs are fixed to the longitudinal beam battery pack fixing points and the cross beam battery pack fixing points.

Further, first threshold roof beam and second threshold roof beam are many cavity section bar structure, and this many cavity section bar structure's cross-section includes interconnect's crossbeam supporting part and battery supporting part, the crossbeam supporting part is located the top of battery supporting part, the crossbeam supporting part is hollow quadrangle check, the battery supporting part is porous latticed check, one side of crossbeam supporting part is connected well floor crossbeam linking bridge, one side of battery supporting part is connected the battery package.

Further, the battery support part comprises a first layer of support part, a second layer of support part and a bottom connection part which are connected in sequence, and the first layer of support part, the second layer of support part and the bottom connection part are all formed by one or more polygonal lattices.

Further, the multi-cavity profile structure is an aluminum profile.

Further, well floor crossbeam linking bridge includes first horniness connecting plate, second horniness connecting plate and bottom fixed plate, bottom fixed plate fixed connection respectively the bottom of first horniness connecting plate and second horniness connecting plate forms the character cut in bas-relief structure, the top of first horniness connecting plate and second horniness connecting plate is all connected in first well floor crossbeam, second well floor crossbeam or third well floor crossbeam, the side of first horniness connecting plate and second horniness connecting plate is all connected first threshold roof beam or second threshold roof beam.

Furthermore, first connecting leaves are arranged at the tops of the first angle-shaped connecting plate and the second angle-shaped connecting plate, second connecting leaves are correspondingly arranged on two sides of the tops of the first middle floor beam, the second middle floor beam and the third middle floor beam, the first middle floor beam, the second middle floor beam or the third middle floor beam is positioned between the first angle-shaped connecting plate and the second angle-shaped connecting plate, and the second connecting leaves are connected with the first connecting leaves;

the side bottoms of the first angle-shaped connecting plate and the second angle-shaped connecting plate are both connected with a third connecting leaf, and the third connecting leaf is connected with the first threshold beam or the second threshold beam.

Further, the first threshold beam and the second threshold beam are connected with the battery pack through bolts.

Compared with the prior art, the utility model has the following advantages:

(1) in order to meet the requirement of traveling of more passengers, the seat pit is arranged at the rear part of the vehicle body, so that the seats in the fourth row can be laid and stored, and can be used for sitting and storing articles; in addition, the battery pack is arranged below the cross beam assembly and supported by the longitudinal beam assembly, so that the floor of the vehicle body can be set as a flat floor, and the rigidity of the whole vehicle is enhanced by utilizing the structural strength of the battery pack.

(2) Floor lightweight, universalization: aiming at the front collision force transmission of a vehicle body, only two longitudinal threshold beams are arranged to bear the front collision force transmission, other longitudinal beams are not arranged, the light weight design is realized, three middle floor beams are not limited by the specifications of other longitudinal beams, the three middle floor beams can be shared to realize the generalization, the three large beams are arranged at the lower part to realize better side collision force support, and the threshold adopts multi-cavity aluminum profiles to realize better structural strength, side collision bending resistance and column collision energy absorption.

(3) Large space and high performance: designing a left and right threshold beam with higher height and larger arrangement distance to realize wider and higher battery pack layout; in order to install the battery, the middle floor is provided with a battery pack installation point besides the threshold beam, the middle floor beam is also provided with 2 rows of middle fixing points respectively, the battery pack is integrally and uniformly fixed in a partitioning mode, the battery and the automobile body are integrated, meanwhile, the torsional rigidity and the bending rigidity of the automobile body are greatly improved, and the battery pack installation point is superior to that of a fuel automobile and other electric automobiles.

(4) The rear flat floor and the seat can be turned into the pit: the longitudinal beams and the cross beams of the rear floor are uniformly arranged on the lower part to realize the upper part full-flat floor, the tail part is designed with a deeper pit, and the rear floor can store articles and also can realize that the seat can be turned over and then enter the pit and realize that the upper part is flush. The turnover seat is reinforced and filled, the rear part crashworthiness is greatly improved, and the rear part NVH vibration and noise suppression system has better performance.

(5) Modularization: the seat pit area can be fast cancelled the floor part in hole, increases the upper portion steel sheet and covers and realize the quick development of different demands motorcycle types and switch.

(5) The multi-cavity section structure is divided into a beam supporting part and a battery supporting part, the beam supporting part is a hollow quadrilateral lattice, the battery supporting part is a porous latticed lattice, when a vehicle body is subjected to large side impact force, the beam supporting part can collapse firstly, the side impact force is transmitted to each middle floor beam, and the stress of a battery pack is reduced; the battery supporting part is relatively stable, can provide certain anti side impact force through the battery pack, can collapse and absorb energy when receiving overlarge side impact force, and protects the battery pack.

Drawings

Fig. 1 is a schematic overall structure diagram of a middle-rear floor architecture provided in an embodiment of the present invention;

FIG. 2 is a bottom beam frame structure of a middle rear floor framework according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the arrangement of the battery pack fixing points in FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 2;

fig. 6 is a schematic diagram of a modified structure of a seat pit provided in an embodiment of the present invention;

FIG. 7 is a schematic side impact force transmission direction diagram of a middle and rear floor frame according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 5;

fig. 9 is an exploded view of a connecting part of a threshold beam and a middle floor cross-member provided in an embodiment of the present invention;

in the figure, 1, a first doorsill beam, 11, a beam supporting part, 12, a battery supporting part, 121, a first layer supporting part, 122, a second layer supporting part, 123, a bottom connecting part, 2, a second doorsill beam, 3, a first middle floor beam, 4, a second middle floor beam, 5, a third middle floor beam, 501, a second connecting page, 6, a middle floor beam connecting bracket, 601, a first angle-shaped connecting plate, 602, a second angle-shaped connecting plate, 603, a bottom fixing plate, 604, a first connecting page, 605, a third connecting page, 7, a battery pack, 71, a longitudinal beam battery pack fixing point, 72, a beam battery pack fixing point, 8, a flat plate, 9, a rear floor, 91, a rear floor beam, 92, a rear floor longitudinal beam, 93, a flat steel plate, 10 and a seat pit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Example 1

As shown in fig. 1, the present embodiment provides a middle and rear floor framework, which includes a flat floor 8, a rear floor 9, a seat pit 10, a middle floor frame structure and a battery pack 7, wherein the middle floor frame structure includes a beam assembly and a longitudinal beam assembly, the battery pack 7 is installed below the beam assembly, the flat floor 8 is installed above the beam assembly, the flat floor 8, the rear floor 9 and the seat pit 10 are connected in sequence, and the beam assembly, the battery pack 7, the flat floor 8, the rear floor 9 and the seat pit 10 are all supported by the longitudinal beam assembly.

The flat floor 8 is used for mounting seats in the second and third rows, and the seat pit 10 is used for mounting seats in the fourth row.

Preferably, a seat long slide rail is laid on the upper surface of the flat ground plate 8. The common rail linkage of the passenger seats in the second row and the third row can be realized by laying the long seat slide rail, and the structure is flexible.

In order to meet the requirement of traveling of more passengers, the seat pit 10 is arranged at the rear part of the vehicle body, so that the seats in the fourth row can be laid and stored, and can be used for sitting and storing articles, the floor of the vehicle body adopts a flat floor 8 design structure, and long slide rails of the seats can be laid to realize common rail linkage of the seats of the passengers in the second row and the third row, so that large sitting space and large storage space are realized on the whole, and the vehicle is flexible and changeable; in addition, the battery pack 7 is arranged below the cross beam assembly and supported by the longitudinal beam assembly, so that not only can the floor of the vehicle body be set as a flat floor 8, but also the rigidity of the whole vehicle is enhanced by utilizing the structural strength of the battery pack 7.

As a preferred embodiment, as shown in fig. 2 and 4, the longitudinal beam assembly is composed of a first threshold beam 1 and a second threshold beam 2, the cross beam assembly includes a first middle floor cross beam 3, a second middle floor cross beam 4 and a third middle floor cross beam 5, and both ends of the first middle floor cross beam 3, the second middle floor cross beam 4 and the third middle floor cross beam 5 are respectively connected with the first threshold beam 1 and the second threshold beam 2 through middle floor cross beam connecting brackets 6.

In this embodiment, the first middle floor cross beam 3, the second middle floor cross beam 4, and the third middle floor cross beam 5 are disposed in parallel with each other, and the first threshold beam 1 and the second threshold beam 2 are disposed in parallel with each other and located on two sides of the first middle floor cross beam 3, the second middle floor cross beam 4, and the third middle floor cross beam 5, respectively.

Regarding the installation and fixation of the battery pack 7, as shown in fig. 3, in this embodiment, except that longitudinal beam battery pack fixing points 71 are uniformly arranged on the first threshold beam 1 and the second threshold beam 2, 2 rows of 6 transverse beam battery pack fixing points 72 are also uniformly arranged on each transverse beam, that is, two transverse beam battery pack fixing points 72 are arranged on each transverse beam, so that the battery packs are uniformly fixed in blocks, the batteries and the vehicle body are fixed to form a whole, and the performance is greatly improved.

As shown in fig. 2 and 7, arrows in the drawings are the transmission directions and paths of the front collision force and the side collision force, in the embodiment, only two longitudinal doorsill beams are arranged for bearing the transmission of the front collision force aiming at the front collision force of the vehicle body, and other longitudinal beams are not arranged, so that three middle floor cross beams have no specification limit of other longitudinal beams, and can be shared to realize generalization; in addition, the battery installation space is also considered, the battery pack 7 is installed below each middle floor beam and is connected with the threshold beams on the two sides, when the side impact force of the vehicle body is received, the side impact force is conducted through the middle floor beams, certain support is realized through the structure of the battery pack 7, the rigidity of the whole vehicle is enhanced by using the structural strength of the battery pack 7, the internal passengers are effectively protected in the collision, and the batteries are protected.

In addition, as shown in fig. 4 and 5, the bottom of the rear floor 9 is provided with two rear floor beams 91 distributed transversely and rear floor stringers 92 distributed longitudinally on two sides of the rear floor 9, the two rear floor beams are respectively located at two ends of the rear floor 9, the rear floor beam located at the tail end of the rear floor 9 also supports the seat pit 10 at the same time, and the two rear floor beams are all at the same horizontal height as the first middle floor beam 3, the second middle floor beam 4 and the third middle floor beam 5, so that the flat floor 8 is horizontal to the rear floor 9.

The seat pit 10 can be designed to be deep, so that more storage space is realized, and the upper part of the seat pit can be leveled after the seat is turned into the pit. The rear part crashworthiness is improved, and rear part NVH vibration and noise suppression can be realized.

As shown in FIG. 6, the parts of the seat pit can be directly eliminated and the flat steel plate 93 is added on the upper part of the seat pit, so that the vehicle type can be quickly switched according to different requirements, such as the requirement of an integral full flat floor.

As a preferred embodiment, as shown in fig. 8 and 9, the first and second rocker beams 1 and 2 are both a multi-cavity profile structure, in this embodiment, an aluminum profile is used, the cross section of the multi-cavity profile structure includes a beam support portion 11 and a battery support portion 12 that are connected to each other, the beam support portion 11 is located above the battery support portion 12, the beam support portion 11 is a hollow quadrilateral lattice, the battery support portion 12 is a perforated grid lattice, one side of the beam support portion 11 is connected to the middle floor beam connecting bracket 6, and one side of the battery support portion 12 is connected to the battery pack 7.

In the embodiment, the multi-cavity section structure is divided into the beam support part 11 and the battery support part 12, the beam support part 11 is a hollow quadrilateral lattice, the battery support part 12 is a porous latticed lattice, as shown in fig. 6, an arrow in the figure is a side impact force transmission direction and path, when a vehicle body is subjected to a large side impact force, the beam support part 11 can firstly collapse, the side impact force is transmitted to each middle floor beam, and the stress of the battery pack 7 is reduced; the battery support part 12 is relatively stable, can provide certain side impact resistance through the battery pack 7, and can also be collapsed and absorb energy when being subjected to overlarge side impact force to protect the battery pack 7.

Preferably, the battery support part 12 includes a first layer support part 121, a second layer support part 122, and a bottom connection part 123 connected in sequence, and each of the first layer support part 121, the second layer support part 122, and the bottom connection part 123 is composed of one or more polygonal lattices.

In the present embodiment, the battery support part 12 includes a first layer support part 121 including two polygonal lattices connected to each other, a second layer support part 122 including three polygonal lattices connected in sequence, and a bottom connection part 123 including two polygonal lattices.

As a preferred embodiment, as shown in fig. 9, the middle floor cross-member connecting bracket 6 includes a first angular connecting plate 601, a second angular connecting plate 602, and a bottom fixing plate 603, wherein the bottom fixing plate 603 is fixedly connected to the bottom of the first angular connecting plate 601 and the bottom of the second angular connecting plate 602, respectively, to form a concave structure, the top of each of the first angular connecting plate 601 and the second angular connecting plate 602 is connected to the first middle floor cross-member 3, the second middle floor cross-member 4, or the third middle floor cross-member 5, and the side edges of each of the first angular connecting plate 601 and the second angular connecting plate 602 are connected to the first rocker 1 or the second rocker 2.

The top parts of the first angle-shaped connecting plate 601 and the second angle-shaped connecting plate 602 are respectively provided with a first connecting leaf 604, the two sides of the top parts of the first middle floor beam 3, the second middle floor beam 4 and the third middle floor beam 5 are respectively and correspondingly provided with a second connecting leaf 501, the first middle floor beam 3, the second middle floor beam 4 or the third middle floor beam 5 are positioned between the first angle-shaped connecting plate 601 and the second angle-shaped connecting plate 602, and the second connecting leaves 501 are connected with the first connecting leaves 604;

the third connecting leaf 605 is connected to the bottom of each of the side edges of the first and second angled connecting plates 601 and 602, and the third connecting leaf 605 is connected to the first or second threshold beam 1 or 2.

Compare in direct being connected threshold roof beam and crossbeam, adopt the well floor crossbeam linking bridge 6 of horn shape, can realize the slant conduction of side impact, make the crossbeam to a certain extent when receiving big side impact, upwards buckle, avoid haring the battery, and the well floor crossbeam linking bridge 6 of horn shape can cooperate the crossbeam supporting part 11 in the many cavitys section bar structure better, realize the effect of collapsing, still make the connection between threshold roof beam and the crossbeam more firm in addition.

In the embodiment, the first threshold beam 1 and the second threshold beam 2 are connected with the battery pack 7 through the bolts, the battery pack 7 is tightly connected with the vehicle body through the bolts, the rigidity of the whole vehicle is enhanced by using the structural strength of the battery pack 7, and an inner passenger is effectively protected in collision, so that the battery is protected.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a well back floor framework, its characterized in that, including flat floor (8), back floor (9), seat hole (10), well floor frame structure and battery package (7), well floor frame structure includes crossbeam subassembly and longeron subassembly, battery package (7) are installed crossbeam subassembly's below, flat floor (8) are installed crossbeam subassembly's top, flat floor (8), back floor (9) and seat hole (10) connect gradually, crossbeam subassembly, battery package (7), flat floor (8), back floor (9) and seat hole (10) all receive the longeron subassembly supports.

2. A mid-rear floor architecture according to claim 1, wherein the flat floor (8) is used for mounting seats of the second and third rows, and the seat pit (10) is used for mounting seats of the fourth row.

3. A mid-back floor construction according to claim 1, characterized in that the upper surface of the flat floor (8) is laid with seat rails.

4. The middle and rear floor framework of claim 1, characterized in that the longitudinal beam assembly is composed of a first sill beam (1) and a second sill beam (2), the beam assembly comprises a first middle floor beam (3), a second middle floor beam (4) and a third middle floor beam (5), and both ends of the first middle floor beam (3), the second middle floor beam (4) and the third middle floor beam (5) are respectively connected with the first sill beam (1) and the second sill beam (2) through middle floor beam connecting brackets (6).

5. A middle and rear floor structure according to claim 4, characterized in that the first sill beam (1) and the second sill beam (2) are provided with longitudinal beam battery pack fixing points (71), the first middle floor beam (3), the second middle floor beam (4) and the third middle floor beam (5) are provided with transverse beam battery pack fixing points (72), and the battery packs (7) are fixed on the longitudinal beam battery pack fixing points (71) and the transverse beam battery pack fixing points (72).

6. The middle and rear floor framework as claimed in claim 4, wherein the first and second sill beams (1, 2) are each a multi-cavity profile structure having a cross section comprising a cross beam support (11) and a battery support (12) connected to each other, the cross beam support (11) is located above the battery support (12), the cross beam support (11) is a hollow quadrilateral lattice, the battery support (12) is a perforated grid-like lattice, one side of the cross beam support (11) is connected to the middle floor cross beam connecting bracket (6), and one side of the battery support (12) is connected to the battery pack (7).

7. A mid-rear floor architecture according to claim 6, wherein the battery support (12) comprises a first layer of support (121), a second layer of support (122) and a bottom connection (123) connected in sequence, the first layer of support (121), the second layer of support (122) and the bottom connection (123) each being formed by one or more polygonal lattices.

8. The middle and rear floor framework as claimed in claim 4, wherein the middle floor cross member connecting bracket (6) comprises a first angular connecting plate (601), a second angular connecting plate (602) and a bottom fixing plate (603), the bottom fixing plate (603) is fixedly connected with the bottoms of the first angular connecting plate (601) and the second angular connecting plate (602) respectively to form a concave structure, the tops of the first angular connecting plate (601) and the second angular connecting plate (602) are connected with the first middle floor cross member (3), the second middle floor cross member (4) or the third middle floor cross member (5), and the sides of the first angular connecting plate (601) and the second angular connecting plate (602) are connected with the first sill beam (1) or the second sill beam (2).

9. The middle and rear floor framework as claimed in claim 8, wherein the top of each of the first and second angular connecting plates (601, 602) is provided with a first connecting leaf (604), the top of each of the first, second and third middle floor beams (3, 4, 5) is correspondingly provided with a second connecting leaf (501), the first, second or third middle floor beams (3, 4, 5) are located between the first and second angular connecting plates (601, 602), and the second connecting leaf (501) is connected with the first connecting leaf (604);

the bottom of the side edge of each of the first angle-shaped connecting plate (601) and the second angle-shaped connecting plate (602) is connected with a third connecting leaf (605), and the third connecting leaf (605) is connected with the first threshold beam (1) or the second threshold beam (2).

10. A mid-rear floor architecture according to claim 4, characterized in that the first and second threshold beams (1, 2) are bolted to the battery pack (7).

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