CN215706640U - Integrated automobile body cross beam and automobile - Google Patents

Integrated automobile body cross beam and automobile Download PDF

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Publication number
CN215706640U
CN215706640U CN202121905784.4U CN202121905784U CN215706640U CN 215706640 U CN215706640 U CN 215706640U CN 202121905784 U CN202121905784 U CN 202121905784U CN 215706640 U CN215706640 U CN 215706640U
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China
Prior art keywords
beam body
cross member
lower beam
automobile
connecting plate
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CN202121905784.4U
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Chinese (zh)
Inventor
梁新宇
贺志杰
张涛
李运涛
张书任
陈强
李任
武文波
李阳
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202121905784.4U priority Critical patent/CN215706640U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides an integrated vehicle body cross beam which comprises a cross beam body. The integral extrusion molding of the beam body comprises a middle connecting plate, an upper beam body arranged on the upper side of the middle connecting plate and a lower beam body arranged on the lower side of the middle connecting plate. The upper beam body and the lower beam body are arranged in a staggered mode along the front-back direction of the vehicle body; the top of the upper beam body is provided with an installation part, and the bottom of the lower beam body is provided with a connecting part; the mounting portion is used for mounting a member located above the beam body, and the connecting portion is used for connecting the member located below the beam body. The integrated vehicle body cross beam is provided with the upper beam body and the lower beam body, the mounting parts and the connecting parts are arranged at the top of the upper beam body and the bottom of the lower beam body, and components such as an upper vehicle seat, a lower battery pack lower shell and the like can be fixedly connected to the cross beam body, so that the cross beam can play basic bearing and connecting functions, can bear the assembly of the battery pack shell, and is suitable for being arranged in the battery pack shell integrated with a vehicle body.

Description

Integrated automobile body cross beam and automobile
Technical Field
The utility model relates to the technical field of automobile body structures, in particular to an integrated automobile body beam. The utility model also relates to a motor vehicle.
Background
With the development of electric automobile technology, the endurance mileage required by electric automobiles is also getting larger and larger; in addition to increasing the energy density of the power battery, the vehicle body also needs to provide enough space for the arrangement of the power battery.
In the existing electric automobile, the battery pack is generally arranged at a front cabin or an underbody, and when the battery pack is arranged at the underbody, the whole battery pack is generally arranged below a floor of the automobile. In the prior art, the front floor of the automobile and the sealing cover of the battery pack are two independent parts, and a fit clearance is required between the front floor of the automobile and the sealing cover of the battery pack, so that the space utilization rate in the automobile height direction is sacrificed. And, because the general arrangement demand often needs provide the mounting point for many modules on the preceding floor, but because the restriction of panel beating stamping process, can only adopt the form of splitting little scaffold weldment. The front floor assembly in the form has the advantages that on one hand, a welding process is added; on the other hand, it also results in a heavy front floor assembly.
Meanwhile, when the battery pack is arranged below the automobile floor, the battery pack shell and the cross beam positioned below the front row seat can be connected, so that how to design a reasonable cross beam structure has important influence on the integrated arrangement of the whole battery pack and the automobile body framework.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to an integrated vehicle body cross member to provide a vehicle body cross member structure adapted to be disposed in a battery pack case integrated with a vehicle body.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
an integrated vehicle body cross beam comprises a cross beam body, wherein the cross beam body is integrally extruded and molded and comprises a middle connecting plate, an upper beam body arranged on the upper side of the middle connecting plate and a lower beam body arranged on the lower side of the middle connecting plate; the upper beam body and the lower beam body are arranged in a staggered mode along the front-back direction of the vehicle body; the top of the upper beam body is provided with an installation part, and the bottom of the lower beam body is provided with a connecting part; the installation department is used for the installation to be located the component of crossbeam body top, connecting portion are used for connecting to be located the component of crossbeam body below.
Furthermore, the upper beam body is buckled on the middle connecting plate, and an upper cavity is formed by the upper beam body and the middle connecting plate; the installation department is including locating a plurality of mounting holes on the roof beam body top.
Further, an upper clapboard is connected between the upper beam body and the middle connecting plate; the upper cavity is divided into a plurality of sub-cavities by the upper partition plate.
Further, an upper reinforcing plate is fixedly connected in the upper beam body; the upper reinforcing plate is provided with mounting through holes which correspond to the mounting holes one to one; and a projection welding nut is fixedly arranged at each mounting through hole.
Furthermore, the upper reinforcing plate is fixedly connected to the upper beam body through a riveting piece.
Further, the lower beam body comprises a lower beam body upper part buckled on the middle connecting plate and a lower beam body lower part buckled at the bottom of the lower beam body upper part, and the length of the lower beam body lower part is smaller than that of the lower beam body upper part; the upper part of the lower beam body and the surrounding structure of the middle connecting plate form a first lower cavity, and the lower part of the lower beam body and the surrounding structure of the upper part of the lower beam body form a second lower cavity; the connecting part comprises a plurality of connecting holes arranged at the bottom end of the lower part of the lower beam body.
Furthermore, a lower partition plate fixedly connected between two side walls of the lower part of the lower beam body is arranged in the second lower cavity; the second lower cavity is divided into a plurality of sub-cavities by the lower partition plate.
Further, a lower reinforcing plate is fixedly connected to the lower portion of the lower beam body; the lower reinforcing plate is provided with connecting through holes which are in one-to-one correspondence with the connecting holes; and a projection welding nut is fixedly arranged at each connecting through hole.
Furthermore, the lower reinforcing plate is fixedly connected to the lower part of the lower beam body through a riveting piece.
Compared with the prior art, the utility model has the following advantages:
according to the integrated vehicle body cross beam, the cross beam body is designed into an upper beam body and a lower beam body which are arranged in a staggered mode from front to back, and the upper beam body and the lower beam body are connected into a whole through the middle connecting plate; through the setting of upper beam body top installation department and underbeam body bottom connecting portion, can all link firmly the crossbeam body with the car seat of top and the battery package inferior valve casing of below to can get up the casing of battery package and the skeleton an organic whole of automobile body, make this integral type automobile body crossbeam exert basic bearing and connection function's while, can bear the assembly of battery package casing simultaneously. Vehicle body cross member structure
In addition, the upper cavity is formed on the upper beam body, and the mounting hole is formed in the top of the upper beam body and used as the mounting part, so that the dead weight of the upper beam body can be effectively reduced, and the upper member can be conveniently mounted and fixed.
Meanwhile, an upper reinforcing plate is arranged in the upper cavity, and particularly when the upper beam body is extruded and formed by aluminum alloy materials, the connection strength of the installation part can be greatly improved, and a projection welding nut is arranged at the installation through hole of the upper reinforcing plate, so that a component above the upper reinforcing plate is connected with the upper reinforcing plate in a screwing mode, the upper reinforcing plate is used for transmitting the whole upper beam body in a stress balance manner, and the connection reliability is guaranteed.
Another object of the present invention is to provide an automobile, in which the integrated body cross member of the present invention is provided, wherein the cross member body is connected between rocker beams on both sides in the automobile; the inner side of the threshold beam is provided with a lap joint boss for lap joint with the end part of the beam body; the component above the beam body is an automobile seat; the component below the beam body is a battery pack lower shell.
Compared with the prior art, the automobile provided by the utility model has the technical advantages of the integrated automobile body cross beam.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate embodiments of the utility model and together with the description serve to explain the utility model, and the description is given by way of example only and without limitation to the terms of relative positions. In the drawings:
FIG. 1 is a schematic perspective view of an integrated body rail according to a first embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an integrated body rail according to a first embodiment of the present disclosure from another perspective;
FIG. 3 is a schematic structural diagram of a reinforcing plate according to a first embodiment of the present invention;
fig. 4 is a schematic overall structure diagram of a battery pack case integrated with a vehicle body in an automobile according to a second embodiment of the present invention;
description of reference numerals:
2. an intermediate connection plate;
30. a battery pack lower case;
401. projection welding of nuts; 402. riveting a connecting piece;
5. an upper beam body; 500. mounting holes; 51. an upper cavity; 52. an upper partition plate; 53. an upper reinforcing plate; 530. mounting a through hole; 560. dividing a cavity;
6. a lower beam body; 600. connecting holes; 61. the upper part of the lower beam body; 611. a first lower cavity; 612. a second lower cavity; 613. a side wall; 614. a lower partition plate; 62. the lower part of the lower beam body; 621. a lower reinforcing plate;
7. a threshold beam; 700. and (4) overlapping the bosses.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the appearances of the terms first, second, etc. in the figures are also for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
The present embodiment relates to an integrated vehicle body cross member capable of bearing the assembly of a battery pack case while exerting the basic bearing and connecting functions, and adapted to be disposed in a battery pack case integrated with a vehicle body.
In general, the integrated body cross member includes a cross member body. The integral extrusion molding of the beam body comprises a middle connecting plate, an upper beam body arranged on the upper side of the middle connecting plate and a lower beam body arranged on the lower side of the middle connecting plate. The upper beam body and the lower beam body are arranged in a staggered mode along the front-back direction of the vehicle body; the top of the upper beam body is provided with an installation part, and the bottom of the lower beam body is provided with a connecting part; the mounting portion is used for mounting a member located above the beam body, and the connecting portion is used for connecting the member located below the beam body.
Based on the above design concept, an exemplary structure of the integrated body cross member of the present embodiment is shown in fig. 1.
It should be noted that, in the integrated vehicle body cross member of the present embodiment, the cross member body may be formed by a steel profile member, preferably, by an extruded aluminum molding member, which is integrally extruded. The extruded aluminum profile is adopted for construction, and the extruded aluminum profile has the characteristics of mature construction process and light weight.
As shown in fig. 1 and fig. 2, the beam body mainly includes an upper beam body 5, a lower beam body 6 and an intermediate connecting plate 2. The upper beam body 5 and the lower beam body 6 are arranged in a staggered mode in the front-rear direction of the vehicle body, the upper beam body 5 is arranged on the upper side of the middle connecting plate 2, and the lower beam body 6 is arranged on the lower side of the middle connecting plate 2. The top of the upper beam body 5 is provided with an installation part, and the bottom of the lower beam body 6 is provided with a connecting part; the mounting part and the connecting part are respectively used for mounting and connecting components above and below the beam body.
In a specific structural form, the upper beam body 5 is buckled above the middle connecting plate 2, and forms an upper cavity 51 with the middle connecting plate 2; the self weight of the upper beam body 5 can be effectively reduced by the arrangement of the upper cavity 51. A plurality of upper partitions 52 are connected between the inner portion of the upper chamber 51, i.e., the wall of the chamber 5, and the intermediate connection plate 2, thereby dividing the upper chamber 51 into a plurality of sub-chambers 560. By arranging the upper partition plates 52 in the upper cavity 51 of the upper beam body 5, the overall strength of the upper beam body 5 can be effectively improved, and thus the connection and bearing performance of the upper beam body 5 can be improved.
The mounting portion may be provided as a plurality of mounting holes 500 at the top end of the upper beam 5 to facilitate mounting and fixing of the upper member. In a specific connection manner, as shown in fig. 3, an upper reinforcing plate 53 is fixedly connected to the upper beam body 5, the upper reinforcing plate 53 is provided with mounting through holes 530 corresponding to the mounting holes 500 one to one, and meanwhile, projection welding nuts 401 are fixedly arranged at the mounting through holes 530. In this way, the member located above is screwed into the projection nut 401 by a bolt, and the member can be fastened to the upper beam body 5.
By arranging the upper reinforcing plate 53 in the upper cavity 51, particularly when the upper beam body 5 is formed by extrusion of aluminum alloy materials, the connection strength of the mounting part can be greatly improved; the projection welding nut 401 is arranged at the mounting through hole 530 of the upper reinforcing plate 53, so that the upper member and the upper reinforcing plate 53 are conveniently connected in a threaded manner, and the upper reinforcing plate 53 transmits the whole upper beam body 5 in a stress balance manner, so that the connection reliability is guaranteed. In order to ensure the strength of the upper reinforcing plate 53 itself, a steel sheet metal part can be selected.
Of course, in order to fix the upper reinforcing plate 53 in the upper cavity 51 in advance, a connecting structure should be firstly arranged between the two; welding, screwing and the like can be adopted. Preferably, a riveting member 402 is disposed on the upper reinforcing plate 53, a riveting hole is disposed on the upper beam body 5, and the upper reinforcing plate 53 is fixedly connected to the upper beam body 5 through the riveting member 402. The riveting piece 402 is adopted to connect the upper reinforcing plate 53 and the upper beam body 5, so that the connecting requirement of two different materials can be met. For example, the upper reinforcing plate 53 is made of a steel plate, and the upper beam body 5 is made of an aluminum profile, so that the upper beam body and the lower beam body can be well connected and fixed through riveting, and subsequent connection and installation between the components and the upper beam body 5 are facilitated.
With respect to the structural form of the lower beam body 6, as also shown in fig. 1 and 2, the lower beam body 6 includes a lower beam body upper portion 61 that is fastened to the intermediate connecting plate 2, and a lower beam body lower portion 62 that is fastened to the bottom of the lower beam body upper portion 61. Wherein the lower beam body part 62 has a smaller length than the lower beam body part 61. Meanwhile, the wall of the upper part 61 of the lower beam body and the middle connecting plate 2 form a first lower cavity 611, and the lower part 62 of the lower beam body and the upper part 61 of the lower beam body form a second lower cavity 612. The coupling portion at the bottom of the lower beam body portion 62 may also be designed as a hole structure including a plurality of coupling holes 600.
The lower beam body 6 is provided with the upper part 61 and the lower part 62 which are arranged up and down, so that a stable installation and connection foundation can be formed at the bottom of the lower beam body 6, and the assembly of lower components is facilitated. At the moment, the upper beam body 5 is positioned outside the battery pack, the lower beam body 6 enters the battery pack shell, and a connecting part is formed at the bottom of the upper beam body and the lower beam body, so that good assembling conditions are provided for the connection of the beam body, the longitudinal beams in the battery pack shell and the battery pack lower shell 30. Further, the lower beam body lower portion 62 is shorter in length than the lower beam body upper portion 61 in the vehicle body height direction, and a strong connection structure can be formed at the connection portion.
Further, similar to the cavity dividing structure in the upper cavity 51, a lower partition 614 fixedly connected between two sidewalls 613 of the lower beam body upper portion 61 is provided in the first lower cavity 611, thereby dividing the second lower cavity 612 into a plurality of sub-cavities 560. By disposing the lower partition 614 in the second lower cavity 612, the overall strength of the lower beam upper portion 61 can be improved, thereby improving the load-bearing capacity of the lower beam upper portion 61.
Similar to the arrangement at the mounting portion, a lower reinforcing plate 621 is attached to the inside of the lower beam body lower portion 62. The lower reinforcing plate 621 is provided with connection via holes corresponding to the plurality of connection holes 600 one to one; the lower beam body part 62 fastens the lower member to the lower beam body 6 by means of a screw thread and projection welding nuts 401 fixed at the respective connecting through holes. Similarly, a lower reinforcing plate 621 is fixedly attached to the lower sill body 62 by rivets 402.
In the integrated vehicle body crossbeam, the crossbeam body is designed into an upper beam body 5 and a lower beam body 6 which are arranged in a staggered manner from front to back, and the upper beam body and the lower beam body are connected into a whole through the middle connecting plate 2; through the setting of the 5 top installation departments of upper beam body and the 6 bottom connecting portions of lower beam body, can all link firmly the crossbeam body with the car seat of top and the battery package lower casing 30 of below to can get up the casing of battery package and the skeleton an organic whole of automobile body, make this integral type automobile body crossbeam exert basic bearing and connection function the time, can bear the assembly of battery package casing simultaneously, be suitable for arranging in the battery package casing integrated with the automobile body.
Example two
The embodiment relates to an automobile, wherein an integrated automobile body cross beam provided by the first embodiment is arranged in the automobile; an exemplary structure of a framework of a vehicle body is shown in fig. 4.
Wherein, the beam body is connected between the sill beams 7 at two sides in the automobile; further, an overlapping boss 700 for overlapping an end portion of the cross member body is provided on an inner side of the rocker beam 7, the overlapping boss 700 is a platform-like structure which is formed to protrude outward at a central position of an end surface of the inner side of the rocker beam 7, and an end portion of the cross member structure in the vehicle body connected to the rocker beam 7 can be overlapped on the overlapping boss 700.
In the present embodiment, the member above the cross member body is generally a car seat, and the member below the cross member body is generally a battery pack lower case 30. The car seat and the battery pack lower case 30 can be firmly fixed to the integrated body cross member by the attachment portion at the top of the upper beam 5 and the attachment portion at the bottom of the lower beam 6.
Through the arrangement of the lap joint boss 700 on the threshold beam 7, when side collision can be reduced or prevented, the threshold beam 7 overturns and invades into the battery pack positioned on the inner side, so that the protective performance of the threshold beam 7 and the beam body to the battery pack can be effectively improved.
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 (10)

1. The utility model provides an integral type automobile body crossbeam, includes the crossbeam body, its characterized in that: the beam body is integrally extruded and molded and comprises a middle connecting plate (2), an upper beam body (5) arranged on the upper side of the middle connecting plate (2) and a lower beam body (6) arranged on the lower side of the middle connecting plate (2); wherein the content of the first and second substances,
the upper beam body (5) and the lower beam body (6) are arranged along the front-back direction of the vehicle body in a staggered manner; and the number of the first and second groups,
the top of the upper beam body (5) is provided with an installation part, and the bottom of the lower beam body (6) is provided with a connecting part;
the installation department is used for the installation to be located the component of crossbeam body top, connecting portion are used for connecting to be located the component of crossbeam body below.
2. The one-piece body cross member according to claim 1, wherein:
the upper beam body (5) is buckled on the middle connecting plate (2), and an upper cavity (51) is formed by the upper beam body and the middle connecting plate (2) in a surrounding manner;
the mounting portion comprises a plurality of mounting holes (500) arranged at the top end of the upper beam body (5).
3. The one-piece body cross member according to claim 2, wherein:
an upper clapboard (52) is connected between the upper beam body (5) and the middle connecting plate (2);
the upper cavity (51) is divided into a plurality of sub-cavities (560) by the upper partition plate (52).
4. The one-piece body cross member according to claim 2, wherein:
an upper reinforcing plate (53) is fixedly connected in the upper beam body (5);
the upper reinforcing plate (53) is provided with mounting through holes (530) which correspond to the mounting holes (500) one by one; and the number of the first and second electrodes,
and projection welding nuts (401) are fixedly arranged at the mounting through holes (530).
5. The one-piece body cross member according to claim 4, wherein:
the upper reinforcing plate (53) is fixedly connected to the upper beam body (5) through a riveting piece (402).
6. The one-piece body cross member according to any one of claims 1 to 5, wherein:
the lower beam body (6) comprises a lower beam body upper part (61) buckled on the middle connecting plate (2) and a lower beam body lower part (62) buckled at the bottom of the lower beam body upper part (61); the lower beam body lower part (62) has a length smaller than that of the lower beam body upper part (61);
the lower beam body upper part (61) and the middle connecting plate (2) are formed into a first lower cavity (611) in an enclosing mode, and the lower beam body lower part (62) and the lower beam body upper part (61) are formed into a second lower cavity (612) in an enclosing mode;
the connecting portion comprises a plurality of connecting holes (600) arranged at the bottom end of the lower beam body lower portion (62).
7. The one-piece body cross member according to claim 6, wherein:
a lower clapboard (614) fixedly connected between two side walls (613) of the upper part (61) of the lower beam body is arranged in the first lower cavity (611);
the first lower cavity (611) is partitioned into a plurality of sub-cavities (560) by the lower partition (614).
8. The one-piece body cross member according to claim 6, wherein:
a lower reinforcing plate (621) is fixedly connected in the lower part (62) of the lower beam body;
the lower reinforcing plate (621) is provided with connecting through holes which are in one-to-one correspondence with the connecting holes (600); and the number of the first and second electrodes,
and a projection welding nut (401) is fixedly arranged at each connecting through hole.
9. The one-piece body cross member according to claim 8, wherein:
the lower reinforcing plate (621) is fixedly connected to the lower beam body part (62) through a riveting piece (402).
10. An automobile, characterized in that: the automobile is provided therein with an integrated body cross member according to any one of claims 1 to 9,
the beam body is connected between threshold beams (7) on two sides in the automobile; and the number of the first and second electrodes,
the inner side of the threshold beam (7) is provided with an overlapping lug boss (700) for overlapping the end part of the cross beam body;
the component above the beam body is an automobile seat;
the lower component of the beam body is a battery pack lower shell (30).
CN202121905784.4U 2021-08-13 2021-08-13 Integrated automobile body cross beam and automobile Active CN215706640U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121905784.4U CN215706640U (en) 2021-08-13 2021-08-13 Integrated automobile body cross beam and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121905784.4U CN215706640U (en) 2021-08-13 2021-08-13 Integrated automobile body cross beam and automobile

Publications (1)

Publication Number Publication Date
CN215706640U true CN215706640U (en) 2022-02-01

Family

ID=79996324

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121905784.4U Active CN215706640U (en) 2021-08-13 2021-08-13 Integrated automobile body cross beam and automobile

Country Status (1)

Country Link
CN (1) CN215706640U (en)

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