CN214524061U

CN214524061U - Floor mounting structure and electric motor car behind electric motor car

Info

Publication number: CN214524061U
Application number: CN202120444531.5U
Authority: CN
Inventors: 赵军利
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-10-29
Anticipated expiration: 2031-03-01

Abstract

The utility model provides a floor mounting structure and electric motor car behind electric motor car, the utility model discloses a floor mounting structure includes along the setting of automobile body width direction interval in order to support a pair of longeron assembly on back floor, in the carriage of back floor top, is equipped with along the reinforcing beam of automobile body width direction extension setting in order to connect a pair of longeron assembly. Electric motor car rear floor mounting structure, through optimizing the automobile body structure, can improve the structural strength on rear floor, and then improve the quality of electric motor car.

Description

Floor mounting structure and electric motor car behind electric motor car

Technical Field

The utility model relates to an automobile body technical field, in particular to floor mounting structure behind electric motor car, simultaneously, the utility model discloses still relate to an electric motor car with floor mounting structure behind this electric motor car.

Background

With the rapid development of new energy vehicles, people pay more and more attention to the endurance performance of electric vehicles, however, the endurance mileage of electric vehicles is directly related to the size of batteries of new energy vehicles. In order to increase the endurance mileage of the conventional electric vehicle, the conventional measures are generally taken such that the battery capacity is increased, and meanwhile, a battery pack is also arranged at the lower part of a passenger seat in the rear row of a rear floor and corresponding to the outer area of a cab.

However, the rear floor department that the battery package of current electric motor car corresponds, electric motor car body structure is except setting up rear floor front beam and rear floor panel, the reinforcing plate has only been arranged at the mortise lock installing point department of back row safety belt, because the peripheral structure of reinforcing plate is weak, can't play the supporting role to the collision, in case meet the automobile body and receive the side collision time, the rear floor panel can't bear the lateral collision power that the longeron assembly transmitted because of self intensity, and take place to burst and contract and warp, and then extrude high voltage battery module, very easily cause the battery package impaired danger such as burning or explosion appear, cause passenger's safety to receive the threat.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a floor mounting structure behind electric motor car to effectively improve the structural strength on back floor, and can be convenient for arranging of battery package.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides an electric motor car rear floor mounting structure, includes along the automobile body width direction interval set up in order to support the pair of longeron assembly on rear floor, in rear floor top in the carriage, be equipped with along the automobile body width direction extension set up in order to connect a pair of the reinforcement crossbeam of longeron assembly.

Furthermore, each longitudinal beam assembly comprises a longitudinal beam extending along the length direction of the vehicle body and a threshold beam connected to the longitudinal beam in a matching mode; and brackets which extend towards the longitudinal beam and are fixedly connected with the longitudinal beam are respectively arranged at the positions close to the two end parts of the reinforcing cross beam.

Further, the support is fixedly connected between the reinforcing cross beam and the longitudinal beam in a threaded manner.

Furthermore, because the support is fixedly connected between the longitudinal beam and the reinforcing cross beam, a cavity is formed below the support.

Furthermore, the reinforcing beam is fixedly connected with the rear floor in a welding mode.

Further, the support adopts a hot plate, and the plate thickness of the support is larger than 3 mm.

Further, the reinforcing beam is configured in a plate shape, and the thickness of the reinforcing beam is more than 1.5 mm.

Furthermore, on two sides of the reinforcing beam in the width direction, reinforcing plates which are arranged in an outward turning mode to reinforce the reinforcing beam are arranged.

Further, the reinforcing cross member is disposed in a region covered left and right in the rear row in the vehicle compartment.

Compared with the prior art, the utility model discloses following advantage has:

(1) floor mounting structure behind electric motor car, through be provided with the web beam who is used for connecting a pair of longeron assembly in the carriage of back floor top, can optimize the automobile body structure, when the vehicle bumps side, can effectively bump the impact that in-process automobile body one side longeron assembly received with the side and transmit to the web beam who adds on, and then transmit to automobile body opposite side longeron assembly on, do benefit to the transmission and the decomposition of power to effectively improve the structural strength on back floor.

Simultaneously, set up the strengthening beam for the carriage in, can be based on foretell improvement rear floor structural strength's prerequisite under, can avoid influencing the arrangement space of battery package because of add the strengthening beam in the top on rear floor to the arrangement of battery package.

(2) The supports which extend to the longitudinal beam and are fixedly connected with the longitudinal beam are respectively arranged at the two end parts adjacent to the reinforcing cross beam, so that the reinforcing cross beam and the pair of longitudinal beams are conveniently and fixedly connected, meanwhile, the vehicle body structure is further optimized, and the force transmission and decomposition effects are improved.

(3) The reinforcing cross beam is fixedly connected between the reinforcing cross beam and the longitudinal beam through the support in a threaded connection mode, and the structure is simple and convenient to achieve.

(4) Because the support is fixedly connected between the longitudinal beam and the reinforcing beam, a cavity is formed below the support, a force transmission channel can be formed among the longitudinal beam, the reinforcing beam and the support, the force transmission path is further optimized, and the force is favorably decomposed in the transmission process.

(5) The reinforcing beam and the rear floor are fixedly connected through welding, so that good connection strength between the reinforcing beam and the rear floor can be ensured, and the structure is simple and easy to realize.

(6) The support adopts the hot plate, easily processing, and the extensibility can be good, avoids the support because of the too big brittle fracture of atress, simultaneously, sets up the thick of support to be greater than 3mm, can ensure the intensity of support self, improves the connection stability between longeron, strengthening beam and the support to do benefit to transmission and the decomposition of power on the support.

(7) The reinforcing beam is constructed into a plate shape, the thickness of the reinforcing beam is larger than 1.5mm, the arrangement of the reinforcing beam on the vehicle body is convenient, and the comfort of the electric vehicle is not influenced while the space utilization rate of the vehicle body is improved.

(8) The reinforcing plates are arranged on two sides of the reinforcing beam in the width direction in an everting mode, so that the connection strength between the reinforcing beam and the automobile body is improved, and force transmission and decomposition are facilitated.

(9) The reinforcing beam is arranged in the rear row left and right covering area in the carriage, so that the structure of the vehicle body can be further optimized, the structural rigidity of a rear floor corresponding to the rear row left and right covering area is effectively improved, the force is transmitted and decomposed, and the safety degree of a battery pack and a rear row passenger is more effectively improved when the electric vehicle is subjected to side collision.

Another object of the present invention is to provide an electric vehicle, wherein the electric vehicle is provided with the rear floor mounting structure of the electric vehicle.

Electric motor car, through disposing foretell electric motor car rear floor mounting structure, can optimize the automobile body structure, do benefit to the transmission and the decomposition of power on the automobile body, effectively promote the structural strength on back floor, avoid the vehicle when taking place the side collision, back floor takes place to warp, then extrudees the battery module, and then prevents that the battery package from producing burning or explosion danger, improves passenger factor of safety and electric motor car quality.

Meanwhile, due to the adoption of the mounting structure, the problem that the arrangement space of the battery pack is influenced by the fact that the reinforcing cross beam is additionally arranged above the rear floor can be avoided, so that the arrangement of the battery pack is facilitated.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a rear floor mounting structure of an electric vehicle according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a rear floor mounting structure of an electric vehicle according to a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a rear floor mounting structure of an electric vehicle according to a first embodiment of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a partial enlarged view of portion B of FIG. 3;

description of reference numerals:

1. a rear floor; 2. a left stringer assembly; 201. a left stringer; 202. a left threshold beam; 2021. a lower left segment; 2022. a left bearing plate; 203. a first reinforcing plate;

3. a right stringer assembly; 301. a right stringer; 302. a right sill beam; 3021. the lower right segment; 3022. a right bearing plate; 303. a second reinforcing plate;

4. a reinforcing cross beam; 5. a left bracket; 500. a left cavity; 6. a right bracket; 600. a right cavity;

7. a left stiffener; 8. a right reinforcing plate; 9. a first bolt; 10. a second bolt; 11. and (4) a region.

Detailed Description

It should be noted that, in the present invention, 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 description and simplification of description, but do not indicate or imply that the device or element referred to 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. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

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

Example one

The embodiment relates to a floor mounting structure behind electric motor car, overall structure is last, and it includes along the setting of automobile body width direction interval in order to support a pair of longeron assembly on back floor, in the carriage of back floor top, is equipped with and extends the reinforcement beam who sets up in order to connect a pair of longeron assembly along automobile body width direction to optimize body construction, improve the structural strength on back floor, and then improve the quality of electric motor car.

It should be noted that, in addition to the structures of the rear floor mounting structure of the electric vehicle described in the present embodiment, other structural parts of the rear floor mounting structure can be referred to as related structures in the body of the existing electric vehicle.

An exemplary structure of the rear floor mounting structure of the electric vehicle according to the present embodiment is shown in fig. 1 to 5 based on the above overall structure, and in this case, as described above, the structure includes a pair of side member assemblies disposed at intervals in the vehicle width direction to support the rear floor 1, and a reinforcing cross member 4 extending in the vehicle width direction to connect the pair of side member assemblies is provided in the vehicle compartment above the rear floor 1.

In the present embodiment, for convenience of description, the pair of side member assemblies are respectively referred to as a left side member assembly 2 and a right side member assembly 3 in the states shown in fig. 3 to 5, wherein the left side member assembly 2 is disposed on the right side of the illustrated rear floor panel 1, and the right side member assembly 3 is disposed on the left side of the illustrated rear floor panel 1. In addition, each longitudinal beam assembly comprises a longitudinal beam extending along the length direction of the vehicle body and a threshold beam connected with the longitudinal beam in a matching mode. Specifically, the left longitudinal beam assembly 2 comprises a left longitudinal beam 201 and a left threshold beam 202, and in order to improve the strength and the use effect of the left longitudinal beam assembly 2, a first reinforcing plate 203 is arranged on the left longitudinal beam 201; the right longitudinal beam assembly 3 comprises a right longitudinal beam 301 and a right threshold beam 302, and in order to improve the self-strength and the use effect of the right longitudinal beam assembly 3, a second reinforcing plate 303 is arranged on the right longitudinal beam 301.

In order to improve the use effect of the reinforcing beam 4, as shown in fig. 3 to 5, the two end portions adjacent to the reinforcing beam 4 are respectively provided with a bracket extending to the longitudinal beam and fixedly connected with the longitudinal beam, so as to realize the fixed connection between the reinforcing beam 4 and the pair of longitudinal beams, and simultaneously, the vehicle body structure is further optimized, and the force transmission and decomposition effects are improved. Specifically, a right bracket 6 extending to the right longitudinal beam 301 and fixedly connected with the right longitudinal beam 301 is arranged near the left end of the reinforcing cross beam 4, and a left bracket 5 extending to the left longitudinal beam 201 and fixedly connected with the left longitudinal beam 201 is arranged near the right end of the reinforcing cross beam 4.

As a preferred embodiment, as shown in fig. 4 and 5, the left bracket 5 is fixedly connected between the reinforcing beam 4 and the left longitudinal beam 201 in a screwed manner, and correspondingly, a first bolt 9 is arranged between the left bracket 5 and the left longitudinal beam 201; the right bracket 6 is fixedly connected between the reinforcing cross beam 4 and the right longitudinal beam 301 in a threaded manner, and correspondingly, a second bolt 10 is arranged between the right bracket 6 and the right longitudinal beam 301; here, adopt the form of spiro union, link firmly reinforcing beam 4 through the support with the longeron between, simple structure is convenient for realize.

In this embodiment, as shown in fig. 4 and 5, because the left bracket 5 is fixedly connected between the left longitudinal beam 201 and the reinforcing cross beam 4, a left cavity 500 is formed below the left bracket 5, and a force transmission channel is formed between the left longitudinal beam 201, the reinforcing cross beam 4 and the left bracket 5; because the right bracket 6 is fixedly connected between the right longitudinal beam 301 and the reinforcing cross beam 4, a right cavity 600 is formed below the right bracket 6, and a force transmission channel is formed among the right longitudinal beam 301, the reinforcing cross beam 4 and the right bracket 6, so that the force transmission path is further optimized, and the force is favorably decomposed in the transmission process.

It is understood that, in the states shown in fig. 4 and 5, in addition to the above-mentioned reinforcing beam 4 being fixedly connected to the left bracket 5, the right end of the reinforcing beam 4 extends and is fixedly connected to the panel of the rear floor 1 corresponding to the projection overlapping portion of the panel of the rear floor 1 and the left longitudinal beam 201 in the height direction, so that a force transmission channel is formed among the left longitudinal beam 201, the reinforcing beam 4 and the left bracket 5 as described above. In addition to the reinforced cross beam 4 fixedly connected to the right bracket 6, the left end of the reinforced cross beam 4 extends and is disposed corresponding to the projection overlapping portion of the panel of the rear floor 1 and the right longitudinal beam 301 in the height direction, and the left end of the reinforced cross beam 4 is fixedly connected to the panel of the rear floor 1, so that a force transmission channel is formed among the right longitudinal beam 301, the reinforced cross beam 4 and the right bracket 6 as described above.

In practical application, the reinforcing beam 4 is fixedly connected with the rear floor 1 in a welding mode, and preferably, the reinforcing beam 4 is welded with the rear floor 1 in a spot welding mode, so that the structure is simple, the implementation is easy, and good connection strength can be guaranteed between the reinforcing beam 4 and the rear floor 1. In addition, adopt the hot plate to make left socle 5 and right branch frame 6, use the hot plate easily to process, and the extensibility can be good, avoid left socle 5 and right branch frame 6 because of the too big brittle fracture of atress, and simultaneously, and further, set up the thick 3mm that is greater than with the board of left socle 5 and right branch frame 6, can ensure the intensity of left socle 5 and right branch frame 6 self, improve left longeron 201, between strengthening beam 4 and the left socle 5, and right longeron 301, the connection stability between strengthening beam 4 and the right branch frame 6, do benefit to transmission and the decomposition of power.

Meanwhile, in order to facilitate the arrangement of the reinforcing cross member 4 on the vehicle body, it is preferable that the reinforcing cross member 4 is configured in a plate shape, and the thickness of the reinforcing cross member 4 is greater than 1.5mm, so that the comfort of the electric vehicle is not affected while the space utilization of the vehicle body is improved.

In addition, in the present embodiment, as shown in fig. 3 to 5, on both sides of the reinforcing beam 4 in the width direction, there are disposed reinforcing plates which are turned outwards to reinforce the reinforcing beam 4, so as to improve the connection strength between the reinforcing beam 4 and the vehicle body, and further facilitate the transmission and decomposition of force. Specifically, in the state shown in fig. 4, a right gusset 8 is provided between the right side member 301 and the right rocker 302 in an everted state corresponding to the projected overlapping portions in the height direction between the cross reinforcement member 4, the rear floor panel 1, the right side member 301, and the right rocker 302. The right sill beam 302 includes a right lower section 3021, and a right bearing plate 3022 for forming a fixed connection between the right lower section 3021 and the right side member 301.

In addition, in the state shown in fig. 5, a left gusset 7 is provided between the left side member 201 and the left rocker 202 in an everted manner corresponding to the projected overlapping portions in the height direction between the cross reinforcement 4, the rear floor panel 1, the left side member 201, and the left rocker 202. The left rocker beam 202 includes a left lower section 2021, and a left receiving plate 2022 for fixedly connecting the left lower section 2021 and the left longitudinal beam 201.

In the present embodiment, as a preferred embodiment, as shown in fig. 1, the reinforcing cross member 4 is disposed in the rear left and right covered region 11 in the vehicle compartment to further optimize the vehicle body structure, effectively enhance the structural rigidity of the rear floor 1 corresponding to the rear left and right covered region 11, and the transmission and decomposition of force, and more effectively enhance the safety of the battery pack and the rear occupants when the electric vehicle is subjected to a side collision.

In this embodiment electric motor car rear floor mounting structure when using, if the vehicle takes place the side collision, can be with the collision force that the side impact in-process automobile body one side longeron assembly received, transmit to the web beam 4 who adds on via the support that this side longeron corresponds, and then transmit to automobile body opposite side support and corresponding longeron assembly on, do benefit to the transmission and the decomposition of power, with the structural strength who effectively improves rear floor 1, and then can avoid rear floor 1 to take place to warp because of intensity is not enough, extrude the battery module, thereby prevent that the battery package from producing burning or explosion danger, improve passenger factor of safety and electric motor car quality.

Meanwhile, the installation structure can avoid the influence on the arrangement space of the battery pack due to the additional arrangement of the reinforcing cross beam 4 above the rear floor 1 on the basis of the premise of improving the structural strength of the rear floor 1, so that the arrangement of the battery pack is facilitated.

In addition, the cavity formed between the side member, the reinforcing cross member 4 and the bracket during the transmission of the above force to the vehicle body can further optimize the effect of transmission and decomposition of the force between the side member assembly and the reinforcing cross member 4.

Example two

The present embodiment relates to an electric vehicle equipped with the electric vehicle rear floor mounting structure as described above. In addition, when the electric vehicle described in this embodiment is used, if a side collision occurs, the stress process and the force resolution effect corresponding to the rear floor 1 are the same as the use effect of the mounting structure of the rear floor of the electric vehicle described in the first embodiment, and thus the description thereof is omitted.

In addition, the installation structure can avoid the influence on the arrangement space of the battery pack due to the additional arrangement of the reinforcing cross beam 4 above the rear floor 1, so that the arrangement of the battery pack is facilitated. Moreover, because the reinforcing beam 4 in the mounting structure is in a plate shape, the use of the mounting structure can ensure that the comfort in the compartment of the electric vehicle is not affected while the space utilization rate of the vehicle body is improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a floor mounting structure behind electric motor car, includes along the setting of automobile body width direction interval in order to support a pair of longeron assembly on back floor (1), its characterized in that: and a reinforcing cross beam (4) which extends along the width direction of the vehicle body and is connected with the pair of longitudinal beam assemblies is arranged in the compartment above the rear floor (1).

2. The electric vehicle rear floor mounting structure of claim 1, wherein: each longitudinal beam assembly comprises a longitudinal beam extending along the length direction of the vehicle body and a threshold beam connected to the longitudinal beam in a matching mode; and brackets which extend to the longitudinal beam and are fixedly connected with the longitudinal beam are respectively arranged at the positions adjacent to the two end parts of the reinforcing cross beam (4).

3. The electric vehicle rear floor mounting structure of claim 2, wherein: the support is fixedly connected between the reinforcing cross beam (4) and the longitudinal beam in a threaded manner.

4. The electric vehicle rear floor mounting structure of claim 2, wherein: because the support is fixedly connected between the longitudinal beam and the reinforcing cross beam (4), a cavity is formed below the support.

5. The electric vehicle rear floor mounting structure of claim 2, wherein: the reinforcing beam (4) is fixedly connected with the rear floor (1) through welding.

6. The electric vehicle rear floor mounting structure of claim 2, wherein: the support adopts the hot plate, the thick more than 3mm of board of support.

7. The electric vehicle rear floor mounting structure of claim 1, wherein: the reinforcing cross member (4) is configured in a plate shape, and the thickness of the reinforcing cross member (4) is more than 1.5 mm.

8. The electric vehicle rear floor mounting structure of claim 1, wherein: and reinforcing plates which are arranged in an outward turning mode to reinforce the reinforcing beam (4) are arranged on two side edges of the reinforcing beam (4) in the width direction.

9. The electric vehicle rear floor mounting structure according to any one of claims 1 to 8, wherein: the reinforcing cross beam (4) is arranged in a rear row left-right covering area in a compartment.

10. An electric vehicle, characterized in that: the electric vehicle is provided with the electric vehicle rear floor mounting structure as recited in any one of claims 1 to 9.