Vehicle body structure integrated with battery pack

Abstract

The utility model discloses a battery pack integrated vehicle body structure which comprises a battery pack and a vehicle frame, the vehicle frame comprises a left longitudinal beam, a right longitudinal beam and a supporting beam connecting the left longitudinal beam and the right longitudinal beam, and the battery pack comprises a top cover, a supporting box and a reinforcing beam; the top cover is buckled on the supporting box and forms an accommodating space together with the supporting box; the top cover serves as a floor to be assembled at the bottom of the supporting beam through a reinforcing beam, and meanwhile the top cover is further connected with the left longitudinal beam and the right longitudinal beam through a supporting box. The floor integrated structure can be optimized, maintenance convenience is not affected, and the performance requirements of treading, modality and the like can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle body, concretely relates to a vehicle body structure integrated with battery pack. BACKGROUND

[0002] With the development of power battery integrated structure, the battery itself integrated efficiency improvement space is smaller and smaller, in order to further improve the power battery integrated efficiency, the battery and the whole vehicle are integrated design, such as the battery upper cover integrated whole vehicle floor and integrated seat cross beam in the market, improve the passenger compartment space or realize the modeling lower car model, in addition to releasing longitudinal space, but also can achieve the advantage of weight reduction, but the above technical scheme battery directly integrated seat cross beam exists the problem of poor battery after-sales maintenance convenience.

[0003] Therefore, to solve the above problems, a vehicle body structure integrated with battery pack is needed, which can optimize the floor integrated structure without affecting the maintenance convenience. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at overcoming the defects in the prior art, providing a vehicle body structure integrated with battery pack, which can optimize the floor integrated structure without affecting the maintenance convenience.

[0005] The utility model discloses a vehicle body structure integrated with battery pack, which comprises a battery pack and a vehicle frame, the vehicle frame comprises a left longitudinal beam, a right longitudinal beam and a supporting beam connecting the left longitudinal beam and the right longitudinal beam, the battery pack comprises a top cover, a box and a reinforcing beam, the top cover is buckled on the box and forms a containing space together with the box, the top cover is assembled at the bottom of the supporting beam as a floor through the reinforcing beam, and the top cover is also connected with the left longitudinal beam and the right longitudinal beam through the box.

[0006] Further, the battery pack further comprises a battery cell arranged in the containing space.

[0007] Further, the bottom surface of the left longitudinal beam and the bottom surface of the right longitudinal beam are located on the same horizontal plane I, and the bottom surface of the supporting beam is located above the horizontal plane I in the height direction.

[0008] Further, the box is provided with a left mounting lug and a right mounting lug, and the box is connected with the left longitudinal beam and the right longitudinal beam of the vehicle frame through the left mounting lug and the right mounting lug.

[0009] Further, a sealing strip and a sealing edge beam are further included, and the sealing strip is sealed on the periphery of the top cover by the sealing edge beam. The sealing strip is arranged in a ring shape at the periphery position of the top cover top flange, and the sealing edge beam is in a ring shape consistent with the shape of the sealing strip, so as to seal the sealing strip on the top cover, and the sealing edge beam is also connected to the vehicle frame together with the battery pack.

[0010] Further, the support beam comprises a cross beam I connected between the left longitudinal beam and the right longitudinal beam, the roof is provided with a hanging mounting position, the hanging mounting position is located at the middle of the roof in the longitudinal direction, and the roof is connected with the cross beam I through a plurality of hanging mounting positions in the transverse direction.

[0011] Further, the support beam further comprises a cross beam II connected between the left longitudinal beam and the right longitudinal beam, and the cross beam II is parallel to the cross beam I.

[0012] The reinforcing beam comprises a support body connecting the cross beam I and the cross beam II, the support body is in the shape of 'H', the top end of the 'H' is connected to the cross beam II, and the bottom end of the 'H' is connected to the cross beam I.

[0013] Further, the reinforcing beam further comprises a reinforcing plate connecting the support body and the cross beam I, and the reinforcing plate connects the transverse partition of the 'H' with the cross beam I.

[0014] Further, the roof is provided with a first reinforcing beam, the frame further comprises a cross beam III connected between the left longitudinal beam and the right longitudinal beam, and the cross beam III is connected with the first reinforcing beam.

[0015] The cross beam III is parallel to the cross beam I, and the cross beam III, the cross beam I and the cross beam II are arranged in sequence in the longitudinal direction.

[0016] Further, the roof is further provided with a second reinforcing beam, and the frame further comprises a reinforcing member connected with the cross beam III and connected with the second reinforcing beam.

[0017] The utility model discloses a vehicle body structure of integrated battery pack, through setting up reinforcing beam and the support beam assembly of vehicle frame on the roof of battery pack, when the roof is as the floor, can satisfy the stress demand, can reduce the vehicle weight and the whole vehicle cost, and can release the space in the height direction of vehicle, can realize the car type of lower modeling, and the battery pack of the scheme can be as independent whole, the roof of battery pack is not directly assembled on the frame, still does not influence the maintenance convenience of battery pack, and can be compatible with battery cell upright, inversion and lying scheme, wide application range, strong versatility, the scheme is applied to vehicle rear, the position of reinforcing beam is located at the tread area of rear seat of vehicle, and the structural strength of this position is higher, can satisfy the tread demand. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings and examples:

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2It is the explosion structure schematic view of the utility model;

[0021] Figure 3 It is the overhead structure schematic view of the utility model;

[0022] Figure 4 It is the A-A direction structure schematic view of the utility model Figure 3 ;

[0023] Figure 5 It is the structure schematic view of the battery pack of the utility model;

[0024] Figure 6 It is the overhead structure schematic view of the battery pack of the utility model;

[0025] Figure 7 It is the B-B direction structure schematic view of the utility model Figure 6 ;

[0026] Figure 8 It is the C-C direction structure schematic view of the utility model Figure 6 .

[0027] Reference signs: left longitudinal beam 1, right longitudinal beam 2, cross beam I 3, cross beam II 4, cross beam III 5, reinforcing part 6, top cover 7, supporting box 8, supporting main body 9, reinforcing plate 10, first reinforcing beam 11a, second reinforcing beam 11b, reinforcing rib 12, left mounting lug 13, right mounting lug 14, battery cell 15, sealing strip 16, sealing edge beam 17, hanging mounting position 18. Specific implementation

[0028] Figure 1 It is the structure schematic view of the utility model, such as Figures 1 to 8As shown, the longitudinal direction is the length direction of the vehicle after the structure is applied to the vehicle, the front direction is the direction close to the front of the vehicle in the longitudinal direction, and the rear direction is the opposite direction, the transverse direction is the width direction of the vehicle after the structure is applied to the vehicle, the left and right directions correspond to the left and right directions of the vehicle, and details are not repeated here; the vehicle body structure of the integrated battery pack in this embodiment includes a battery pack and a vehicle frame, the vehicle frame includes a left longitudinal beam 1, a right longitudinal beam 2, and a support beam connecting the left longitudinal beam 1 and the right longitudinal beam 2, and the battery pack includes a top cover 7, a box 8, and a reinforcing beam. The top cover 7 is fastened to the box 8 and forms a containing space together with the box 8. The top cover 7 is assembled at the bottom of the support beam as a floor through the reinforcing beam, and the top cover 7 is also connected to the left longitudinal beam 1 and the right longitudinal beam 2 through the box 8. The reinforcing beam on the top cover 7 of the battery pack is assembled with the support beam of the vehicle frame, and the box 8 is connected to the left longitudinal beam 1 and the right longitudinal beam 2, so that the top cover 7 as a floor can meet the stress requirement, and the vehicle weight and the overall vehicle cost can be reduced. The space in the height direction of the vehicle can be released, and a lower model vehicle can be realized. When the battery pack is disassembled for maintenance, only the box assembled on the vehicle frame needs to be disassembled, which does not affect the maintenance convenience of the battery pack, and can be compatible with the schemes of upright, inverted, and lying battery cells, has a wide application range, and has strong versatility. The scheme is applied to the rear of the vehicle, and the position of the reinforcing beam is located in the tread area of the rear seat of the vehicle. The structure at this position has higher strength and can meet the tread requirement.

[0029] In this embodiment, the battery pack further includes upright battery cells 15 in the containing space. The structure can not affect the maintenance convenience and production line, has a lower difficulty and complexity of assembly, can reduce the risk of short circuit caused by easy knocking at the bottom, and can save battery cost.

[0030] In this embodiment, the bottom surface of the left longitudinal beam 1 and the bottom surface of the right longitudinal beam 2 are located on the same horizontal plane I, and the bottom surface of the support beam is located above the horizontal plane I in the height direction, so that the left longitudinal beam 1, the right longitudinal beam 2, and the support beam form an installation space for accommodating and assembling the battery pack. The battery pack can be arranged in the vehicle frame in a manner of being embedded into the installation space, further releasing the space in the height direction of the vehicle, realizing a lower vehicle model or a larger passenger cabin space, or being able to arrange more battery cells according to the corresponding requirements, and having greater design advantages.

[0031] In this embodiment, the box 8 has a left mounting lug 13 and a right mounting lug 14. The box 8 is detachably connected to the left longitudinal beam 1 and the right longitudinal beam 2 of the vehicle frame through the left mounting lug 13 and the right mounting lug 14, improves the maintenance convenience, and ensures the stability of the assembly of the battery pack on the vehicle frame. Figure 2 、 Figure 5 、 Figure 6 and Figure 7As shown, the left mounting lug 13 is in the shape of a strip parallel to the left longitudinal beam 1 and is assembled at the bottom of the left longitudinal beam 1, the right mounting lug 14 is in the shape of a strip parallel to the right longitudinal beam 2 and is assembled at the bottom of the right longitudinal beam 2, the bottom of the left mounting lug 13 and the bottom of the right mounting lug 14 are substantially flush with the bottom surface of the box 8, so that after the battery pack is assembled on the frame through the left mounting lug 13 and the right mounting lug 14, the top cover 7 of the battery pack and part of the battery cell 15 are protected in the above-mentioned mounting space, further improving the safety factor.

[0032] In the embodiment, a sealing strip 16 and a sealing edge beam 17 are further included, the sealing strip 16 is sealed by the sealing edge beam 17 at the periphery of the top cover 7. In the scheme, as shown in Figure 2 the sealing strip 16 is arranged in the shape of a ring at the periphery of the top cover 7, the sealing edge beam 17 is in the shape of a ring consistent with the sealing strip 16 to seal the sealing strip 16 on the top cover 7, and the sealing edge beam 17 is further connected to the frame together with the battery pack, wherein the sealing edge beam 17 is in interference fit with the beams surrounding the mounting space, meeting the waterproof requirement of a predetermined level between the top cover 7 used as the floor of the vehicle and the frame; meanwhile, the sealing structure is arranged at the folded edge of the top cover 7, making the structure of the top cover 7 more compact and the protection performance of the battery cell 15 better.

[0033] In the embodiment, as shown in Figure 2 the support beam includes a transverse beam I 3 connected between the left longitudinal beam 1 and the right longitudinal beam 2, the top cover 7 has a plurality of mounting positions 18, after the battery pack is arranged on the frame, the mounting positions 18 are located at the middle part of the top cover 7 in the longitudinal direction and are arranged on the top cover 7 in the transverse direction, the transverse beam I 3 is parallel to the transverse direction, and the top cover 7 is connected to the transverse beam I 3 through the mounting positions 18. Through the arrangement of the mounting positions 18, the installation stability of the battery pack on the frame can be further improved, especially the position is closer to the stepping area of the occupant, and the stepping stiffness of the top cover 7 used as the floor can be further met.

[0034] In the embodiment, the support beam further includes a transverse beam II 4 connected between the left longitudinal beam 1 and the right longitudinal beam 2, the transverse beam II 4 is located at the rear side of the transverse beam I 3 and is arranged in parallel with the transverse beam I 3 in the longitudinal direction;

[0035] The reinforcing beam includes a support main body 9 connecting the transverse beam I 3 and the transverse beam II 4; as shown in Figure 5 and Figure 6As shown, the support body 9 is in the shape of "H", which is arranged at the rear area of the roof 7 along the longitudinal direction, the top end of the "H" is connected to the cross beam II 4, the bottom end of the "H" is connected to the cross beam I 3, the "H" includes a transverse partition parallel to the transverse direction and two longitudinal partitions parallel to the longitudinal direction, and the transverse partition of the "H" is parallel to the cross beam I 3. The connection structure of the support body 9 and the cross beam I 3 and the cross beam II 4 is in a mesh shape, which can improve the connection strength of the roof 7 and the vehicle frame.

[0036] In the embodiment, the reinforcing beam further includes a reinforcing plate 10 connecting the support body 9 and the cross beam I 3, as shown in Figure 5 and Figure 6 As shown, the reinforcing plate 10 connects the transverse partition of the "H" and the cross beam I 3. The reinforcing plate 10 is arranged parallel to the longitudinal direction and is located at the middle of the transverse partition in the transverse direction, which further improves the connection strength of the roof 7 and the vehicle frame.

[0037] In the embodiment, the roof 7 is provided with a first reinforcing beam 11a and a second reinforcing beam 11b, and the vehicle frame further includes a cross beam III 5 connected between the left longitudinal beam 1 and the right longitudinal beam 2, the cross beam III 5 is connected to the first reinforcing beam 11a, so that the connection structure of the battery pack and the vehicle frame is more stable; more specifically, as shown in Figure 3 、 Figure 5 and Figure 6 As shown, the first reinforcing beam 11a and the second reinforcing beam 11b correspondingly have a strip shape extending along the transverse direction, the first reinforcing beam 11a is located at the rear side of the second reinforcing beam 11b along the longitudinal direction, and the first reinforcing beam 11a and the second reinforcing beam 11b are arranged at the front area of the roof 7, the first reinforcing beam 11a is connected to the cross beam III 5, and the second reinforcing beam 11b is connected between the left longitudinal beam 1 and the right longitudinal beam 2, so as to form a structure reinforcing the whole roof 7 together with the support body 9 arranged at the rear area of the roof 7, and further ensure the connection strength and arrangement stability of the roof 7 on the vehicle frame, and meet the reliability of the roof 7 as the vehicle floor.

[0038] In the embodiment, as shown in Figures 1 to 3 The cross beam III 5 is parallel to the cross beam I 3, the cross beam III 5, the cross beam I 3 and the cross beam II 4 are arranged in sequence along the longitudinal direction from front to back, and the vehicle frame further includes a reinforcing member 6, which has a strip shape extending along the longitudinal direction, the rear end of the reinforcing member 6 is connected to the middle of the cross beam III 5 along the longitudinal direction, the front end of the reinforcing member 6 is connected to the central channel of the vehicle, and the reinforcing member 6 is further connected to the second reinforcing beam 11b located at the bottom of the reinforcing member 6, as shown in Figure 3As can be seen, the connection structure of the second reinforcing beam 11b, the cross beam III 5 and the reinforcing member 6 is in the shape of a Chinese character 'tu', which improves the connection strength between the top cover 7 used as the vehicle floor and the vehicle frame, can improve the torsional stiffness of the vehicle frame, making the continuity of the whole vehicle better and the modal of the whole vehicle better; of course, due to differences in vehicle models and vehicle floor designs, etc., the front end of the reinforcing member 6 can also be connected to a preset position of the vehicle body according to actual situations, so as to meet the established connection function, which will not be elaborated here.

[0039] In this embodiment, there are several reinforcing ribs 12 on the top cover 7. Along the longitudinal direction, several reinforcing ribs 12 are distributed in the area of the top cover 7 closer to the front, further ensuring the structural strength of the top cover and improving the bending resistance of the top cover, so as to meet the use requirements of the established functions when the top cover 7 is used as the vehicle floor.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A vehicle body structure integrating a battery pack, characterized by: The battery pack and the frame are included, the frame includes left side sill, right side sill and support beam connecting the left side sill and the right side sill, the battery pack includes top cover, box and reinforcing beam; the top cover is buckled to the box and constitutes the containing space with the box; the top cover is assembled at the bottom of the support beam as the floor through the reinforcing beam, meanwhile the top cover is also connected with the left side sill and the right side sill through the box.

2. The vehicle body construction of claim 1, wherein: The battery pack also includes the battery cell which is vertically arranged in the containing space.

3. The vehicle body construction of claim 1, wherein: The bottom surface of the left side sill and the bottom surface of the right side sill are located in the same horizontal plane I, and the bottom surface of the support beam is located above the horizontal plane I in the height direction.

4. The vehicle body construction of claim 1, wherein: The box has left mounting lug and right mounting lug, and the box is connected with the left side sill and the right side sill of the frame through the left mounting lug and the right mounting lug.

5. The vehicle body construction of integrated battery pack according to claim 1, characterized by: The sealing strip is also included, and the sealing strip is sealed by the sealing edge beam at the circumference of the top cover.

6. The vehicle body construction of claim 1, wherein: The support beam includes cross beam I connecting between the left side sill and the right side sill, and the top cover has hanging mounting position, and the top cover is connected with the cross beam I through the hanging mounting position.

7. The integrated battery pack vehicle body construction of claim 6, wherein: The support beam also includes cross beam II connecting between the left side sill and the right side sill. The reinforcing beam includes support main body connecting the cross beam I and the cross beam II.

8. The vehicle body construction integrated with a battery pack according to claim 7, characterized by: The reinforcing beam also includes reinforcing plate connecting the support main body and the cross beam I.

9. The vehicle body construction of claim 1, wherein: The first reinforcing beam is arranged on the top cover, and the frame also includes cross beam III connecting between the left side sill and the right side sill, and the cross beam III is connected with the first reinforcing beam.

10. The vehicle body construction integrated battery pack according to claim 9, characterized by: The second reinforcing beam is also arranged on the top cover, and the frame also includes reinforcing member connecting with the cross beam III, and the reinforcing member is also connected with the second reinforcing beam.

Images