CN219055959U - Battery package box mounting point reinforcing structure, battery package box and vehicle body structure - Google Patents

Abstract

The utility model discloses a battery pack box mounting point reinforcing structure which is used for being mounted on a box side beam and comprises a supporting gasket, a flange sleeve and a fastener. The support gasket is fixed on the side beam of the box body and positioned at one side of the side beam; the flange sleeve is fixed in the side beam of the box body and is arranged at the other side of the side beam penetrating out of the box body; the fastener sequentially passes through the flange sleeve, the box side beam and the supporting gasket and is fixed on the car body shell; when the side beam of the box body is fixed on the body shell through the fastener, the supporting gasket is abutted against the body shell. Therefore, the flange sleeve is arranged in the side beam of the box body, so that the structural strength of the mounting point is increased, and meanwhile, the processing steps are simplified; through set up the support gasket on the box boundary beam, after adopting fastener and automobile body casing fixed connection, this support gasket compresses tightly the butt mutually with the automobile body casing for both connect more fastening. In addition, the utility model also provides a battery pack box body and a vehicle body structure with the battery pack box body.

Description

Reinforcing structure for mounting point of battery pack box body, battery pack box body and vehicle body structure

technical field

The utility model relates to the field of new energy electric vehicles, in particular to a reinforcement structure for a mounting point of a battery pack box body, a battery pack box body and a vehicle body structure.

Background technique

The battery pack is the core component of electric vehicles and plays a key role in the battery life of electric vehicles. The battery pack is generally installed in a battery pack box under the body shell, and the battery pack box is connected to the body shell through a mounting structure. Patent announcement number CN113471607A discloses a battery box, including a lower box, the lower box includes a frame, the frame includes a frame and a plurality of reinforcing beams connected to the frame, at least two mounting points are set on the reinforcing beam and are located on the frame middle part. In addition, the frame is also formed with a supporting beam for supporting the mounting point. The mounting point includes a connecting column integrally formed with the reinforcing beam and the supporting beam. A connecting hole is opened in the connecting column, and the connecting hole is used for connecting with the vehicle body. The mounting part set is connected. It can be seen that most of the reinforcement of the mounting point of the traditional battery pack box adopts thickening treatment at the rib position of the mounting point to enhance the structural strength of the mounting point. The thickness will increase the manufacturing cost, and the machining time will also be greatly increased, thereby reducing the processing efficiency.

Therefore, there is an urgent need to provide a reinforcement structure for the mounting point of the battery pack case with simple structure, reliable strength, less material consumption, and less processing.

Utility model content

In order to overcome the above-mentioned defects of the prior art, the utility model provides a battery pack case mounting point reinforcement structure with reliable strength, less material consumption and less processing amount, and the battery pack case mount point The battery pack box and body structure with point reinforcement structure.

The technical scheme that the utility model adopts for solving its problem is:

A reinforcement structure for mounting points of a battery pack box, used for installation on side beams of the box, comprising:

a supporting spacer, which is fixed on the side beam of the box body and is located on one side thereof;

A flange sleeve, which is fixed in the side beam of the box body and is provided on the other side of the side beam of the box body;

Fasteners, which sequentially pass through the flange sleeve, the side beam of the box body and the support gasket and are fixed on the body shell;

Wherein, when the side beam of the box body is fixed on the body shell by the bolt, the support gasket abuts against the body shell.

Further, a first through hole is opened on the support gasket, a second through hole is opened on the flange sleeve, and a second through hole is opened on the side beam of the box to communicate with the first through hole and the the third through hole of the second through hole;

The fastener passes through the second through hole, the third through hole and the first through hole in sequence and is fixed on the body shell.

Further, the diameters of the first through hole, the second through hole and the third through hole are the same.

Further, the flange sleeve is also provided with a sinking groove that communicates with the second through hole and forms a stepped hole; the fastener is a bolt, and the bolt passes through the sinking groove and the first through hole in sequence. Two through holes and the nuts of the bolts lean against the end faces of the sinking grooves.

Further, a glue groove is provided on the support gasket, and an adhesive tape is arranged in the glue groove, and the support gasket is glued to the side beam of the box body through the adhesive tape.

Further, the section of the glue groove is trapezoidal.

Further, an accommodating groove is also opened on the side beam of the box body, the flange sleeve includes a flange surface and a sleeve body arranged on the flange surface, the sleeve body is arranged on the The end surface of the flange surface in the accommodation groove abuts against the side beam of the box body and is fixed by welding.

Further, both the support gasket and the flange sleeve are made of aluminum.

In addition, the second aspect of the utility model also provides a battery pack box, including a lower box frame, and the lower box frame includes two box side beams arranged symmetrically, and two box side beams respectively connected to surround the box body. Synthesize several box frames of closed-loop structure;

The side beams of the box body are arranged with several above-mentioned reinforcing structures for the mounting points along its length direction.

Further, the lower box frame further includes a plurality of reinforcing beams arranged at intervals and respectively connected to opposite side walls of the two side beams of the box.

Further, the box side beams, the box frame and the reinforcing beam are all extruded aluminum profiles.

In addition, the third aspect of the utility model also provides a body structure, including a body shell and the above-mentioned battery pack box, and a rivet nut is arranged in the body shell;

The fastener passes through the flange sleeve, the side beam of the box body and the support gasket in turn, and is screwed and fixed with the rivet nut.

To sum up, the utility model provides a battery pack box mounting point reinforcement structure, battery pack box body and vehicle body structure, which has the following beneficial effects:

(1) The mounting point reinforcement structure of the utility model simplifies the processing steps by arranging flange sleeves in the side beams of the box while satisfying the structural strength of the mounting point, so that the processing amount is greatly reduced, and the costs.

(2) In the mounting point reinforcement structure of the present utility model, the body shell and the battery pack box are fixed by bolts and rivet nuts, which greatly simplifies the assembly method between the two and improves the Assembly efficiency.

(3) In the mounting point reinforcement structure of the present utility model, by setting the support gasket on the side beam of the box body, after the bolt is screwed with the rivet nut on the body shell, the end surface of the support gasket is connected to the vehicle body. The shells are pressed against each other, so that the connection between the body shell and the battery pack box is tightened, and the stability of the connection between the two is improved.

(4) The mounting point reinforcement structure of the present utility model, compared with the traditional mounting point reinforcement structure, the mounting point reinforcement structure of the present application does not need to be higher than the lower box frame except for the bolts , thereby releasing the space of the battery box and improving the space utilization rate.

Description of drawings

Fig. 1 is the explosion schematic diagram of the reinforcement structure of the mounting point on the side beam of the box body of the present invention;

Fig. 2 is a schematic cross-sectional view of the mounting point reinforcement structure on the side beam of the box body of the present invention;

Fig. 3 is a partially enlarged schematic diagram of part A in Fig. 2;

Fig. 4 is a structural schematic diagram of the lower box frame of the battery pack box of the present invention;

Figure 5 is a schematic cross-sectional view of the assembly of the lower box frame and the body shell of the utility model;

FIG. 6 is a partially enlarged schematic diagram of part B in FIG. 5 .

Among them, the reference signs have the following meanings:

1. Support gasket; 11. First through hole; 12. Glue groove; 2. Flange sleeve; 21. Second through hole; 22. Sink; 23. Flange surface; 24. Sleeve body; 3 , bolt; 31, nut; 32, stud; 4, lower box frame; 41, box side beam; 411, third through hole; 412, accommodation groove; 42, box frame; 43, reinforcement beam ; 5, body shell; 6, pressure riveting nuts.

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Modules or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model.

Embodiment one

Referring to Figures 1-3, the utility model firstly provides a reinforcement structure for the mounting point of the battery pack box mounted on the side beam 41 of the box body, which includes a support gasket 1, a flange sleeve 2 and a fastening The support gasket 1 is fixed on the side beam 41 of the box body and is located at the top of the side beam 41 of the box body; the flange sleeve 2 is fixed in the side beam 41 of the box body and passes through the bottom of the side beam 41 of the box body Setting; the fastener is a bolt 3, and the bolt 3 passes through the flange sleeve 2, the box side beam 41 and the support gasket 1 in turn and is fixed on the body shell 5; wherein, when the box side beam 41 passes through When the bolt 3 is fixed on the vehicle body shell 5 , the upper end surface of the support gasket 1 abuts against and presses against the bottom surface of the vehicle body shell 5 .

Thus, by arranging the flange sleeve 2 in the side beam 41 of the box body, while meeting the requirements of increasing the structural strength of the mounting point, the processing steps are greatly simplified, so that the amount of processing is greatly reduced, thereby reducing the cost; A support gasket 1 is arranged on the beam 41. After the box side beam 41 is connected and fixed with the body shell 5 by bolts 3, the end face of the support gasket 1 is pressed against the body shell 5 so that the body shell 5 The connection with the battery pack case is tighter, thereby improving the stability of the connection between the two.

In this embodiment, the support gasket 1 and the flange sleeve 2 are both made of aluminum.

Specifically, referring to FIG. 2 , the support gasket 1 is provided with a first through hole 11 , the flange sleeve 2 is provided with a second through hole 21 , and the box side beam 41 is provided with a first through hole. 11 and the third through holes 411 communicating with the second through holes 21 respectively. Preferably, the diameters of the first through hole 11 , the second through hole 21 and the third through hole 411 are the same. The bolt 3 sequentially passes through the second through hole 21 , the third through hole 411 and the first through hole 11 and is fixed on the body shell 5 .

Referring to Fig. 2 again, the bolt 3 includes a stud 32 and a nut 31 arranged on the stud 32, and the flange sleeve 2 is also provided with a sinker 22 communicating with the second through hole 21 and forming a stepped hole, The stud 32 of the bolt 3 passes through the sinker 22 , the second through hole 21 , the third through hole 411 and the first through hole 11 in turn and is fixed on the body shell 5 , and the nut 31 of the bolt 3 abuts against On the end face of sinker 22.

Referring to Fig. 3 again, the support pad 1 is also provided with an annular glue groove 12, and an adhesive tape (not shown) is arranged in the glue groove 12, and the support pad 1 is glued to the box by the adhesive tape. The top of the body side beam 41; preferably, the cross section of the glue tank 12 is trapezoidal, thereby giving the adhesive tape a certain deformation space, so that the adhesive tape can be more firmly pasted on the box body side beam.

Of course, in other embodiments, other fixing glues can also be used instead of the adhesive tape, and the section of the glue groove 12 can also be square or other shapes, which are not limited here.

Therefore, the support gasket 1 is fixed on the side beam 41 of the box by gluing, and the installation process is simple and convenient, thereby improving the assembly efficiency.

Referring to FIG. 2 again, the side beam 41 of the box body is also provided with an accommodating groove 412 communicating with the third through hole 411. The flange sleeve 2 includes a flange surface 23 and a sleeve arranged on the flange surface 23. The main body 24, the sleeve body 24 is arranged in the accommodation groove 412 and the end surface of the sleeve body 24 is attached to the bottom surface of the accommodation groove 412, the flange surface 23 passes through the box side beam 41 and the flange The end surface of the surface 23 abuts against the bottom surface of the box side beam 41, and the end surface of the flange surface 23 and the bottom surface of the box side beam 41 are welded and fixed to realize fixing the flange sleeve 2 in the box side beam 41 .

Thus, the sleeve body 24 of the flange sleeve 2 is arranged in the accommodation groove 412 of the side beam 41 of the box body, and the flange surface 23 of the flange sleeve 2 is set through the bottom of the side beam 41 of the box body, The flange surface 23 does not need to take up too much space at the bottom of the box side beam 41; similarly, the support gasket 1 does not need to take up too much space at the top of the box side beam 41; therefore, the mounting point reinforcement is set The structure does not need to occupy too much installation space on the top and bottom of the side beam 41 of the box body, thereby releasing the space of the battery box body and greatly improving the space utilization rate.

Embodiment two

Referring to Figure 4, the utility model also provides a battery pack box, including a lower box and an upper box (not shown) connected to the lower box, the lower box includes a lower box frame 4 The lower box frame 4 includes two box side beams 41 arranged symmetrically and several box frames 42 respectively connecting the two box side beams 41 and forming a closed loop structure. Preferably, the two box side beams 41 and several box frame frames 42 are fixed by welding to realize the connection; the box side beams 41 are evenly arranged with a plurality of hangers as described in the first embodiment along its length direction. As for the reinforcing structure of the loading point, the multiple mounting point reinforcing structures on one box side beam 41 correspond to the multiple mounting point reinforcing structures on the other box side beam 41 and are arranged symmetrically.

Thus, by dividing a plurality of mounting point reinforcing structures on two symmetrically arranged box side beams 41, and the multiple mounting point reinforcing structures on one box side beam 41 are connected with the other box side beam The reinforcement structures of multiple mounting points on the 41 are set in one-to-one correspondence, so that the load on the mounting point is uniform, thereby enhancing the load bearing capacity of the mounting point, and further enhancing the mounting strength of the entire battery pack.

Further, the lower box frame 4 also includes a plurality of reinforcing beams 43, the plurality of reinforcing beams 43 are arranged in the area defined by the closed-loop structure and their two ends are respectively connected to the opposite side walls of the two box side beams 41 , and a plurality of reinforcing beams 43 are arranged at intervals.

In this embodiment, the box side beam 41 , the box frame 42 and the reinforcing beam 43 are all extruded aluminum profiles.

In addition, it should be noted that, except for the bolts 3, the reinforcement structure of the mounting point arranged on the box side beam 41 is not higher than the lower box frame 4, thereby releasing the space of the battery box and improving the Space utilization.

Embodiment Three

Referring to Figures 5-6, the utility model also provides a body structure, including a body shell 5 and the battery pack box in the second embodiment, the body shell 5 is provided with a rivet nut 6, and the mounting point is supplemented The bolts 3 in the strong structure pass through the flange sleeve 2, the side beam 41 of the box body and the support gasket 1 in sequence and are threaded with the rivet nut 6 to realize the connection between the battery pack box body and the body shell 5.

As a result, the body shell 5 and the battery pack box are fixed by means of threaded connection between the bolt 3 and the rivet nut 6 , which greatly simplifies the assembly method between the two and improves the assembly efficiency.

To sum up, the utility model provides a battery pack box mounting point reinforcement structure, battery pack box body and vehicle body structure, which has the following beneficial effects:

(1) The mounting point reinforcement structure of the present utility model, by setting the flange sleeve 2 in the side beam 41 of the box body, while satisfying the need to increase the structural strength of the mounting point, the processing steps are simplified, so that the processing amount is greatly reduced , reducing costs.

(2) In the mounting point reinforcement structure of the present utility model, the body shell 5 and the battery pack box are fixed by means of bolts 3 and rivet nuts 6, which greatly simplifies the assembly method between the two , improving assembly efficiency.

(3) The mounting point reinforcement structure of the present utility model is provided with a support pad 1 on the side beam 41 of the box body. After the bolt 3 is connected and fixed with the rivet nut 6 on the body shell 5, the support pad The end surface of the piece 1 is pressed against the body shell 5, so that the connection between the body shell 5 and the battery pack box is more tightened, thereby improving the stability of the connection between the two.

(4) The mounting point reinforcement structure of the present utility model, compared with the traditional mounting point reinforcement structure, the mounting point reinforcement structure of this application does not need to be higher than the lower box frame except for the bolt 3 4, thus releasing the space of the battery box and improving the space utilization rate.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the The description does not indicate or imply that the modules or elements referred to must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

In addition, in the description of the present utility model, the meanings of "plurality" and "several" are two or more, unless otherwise specifically defined.

The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims (12)

1. The utility model provides a battery package box mount point reinforcing structure for install on box boundary beam (41), its characterized in that includes:

a support pad (1) fixed to the tank side beam (41) and located at one side thereof;

the flange sleeve (2) is fixed in the box side beam (41) and penetrates out of the other side of the box side beam (41);

the fastening piece sequentially passes through the flange sleeve (2), the box side beam (41) and the support gasket (1) and is fixed on the vehicle body shell (5);

when the box side beam (41) is fixed on the car body shell (5) through the fastener, the support gasket (1) is abutted with the car body shell (5).

2. The mounting point reinforcing structure according to claim 1, wherein the support gasket (1) is provided with a first through hole (11), the flange sleeve (2) is provided with a second through hole (21), and the tank side beam (41) is provided with a third through hole (411) which is respectively communicated with the first through hole (11) and the second through hole (21);

the fastener sequentially passes through the second through hole (21), the third through hole (411) and the first through hole (11) and is fixed on the vehicle body shell (5).

3. Mounting point reinforcing structure according to claim 2, characterized in that the pore sizes of the first through hole (11), the second through hole (21) and the third through hole (411) are the same.

4. The mounting point reinforcing structure according to claim 2, characterized in that the flange sleeve (2) is also provided with a sinking groove (22) which is communicated with the second through hole (21) and forms a stepped hole; the fastening piece is a bolt (3), the bolt (3) sequentially passes through the sinking groove (22) and the second through hole (21), and a nut (31) of the bolt (3) abuts against the end face of the sinking groove (22).

5. The mounting point reinforcing structure according to any one of claims 1-4, wherein a glue groove (12) is further formed in the support gasket (1), an adhesive piece is arranged in the glue groove (12), and the support gasket (1) is adhered to the tank side beam (41) through the adhesive piece.

6. The mounting point reinforcing structure according to claim 5, wherein the cross section of the glue groove (12) is trapezoidal.

7. The mounting point reinforcing structure according to any one of claims 1-4, wherein the tank side beam (41) is further provided with a containing groove (412), the flange sleeve (2) comprises a flange surface (23) and a sleeve body (24) arranged on the flange surface (23), the sleeve body (24) is arranged in the containing groove (412), and the end face of the flange surface (23) is abutted against the tank side beam (41) and welded and fixed.

8. Mounting point reinforcing structure according to any of claims 1-4, characterized in that the support gasket (1) and the flange sleeve (2) are both made of aluminium material.

9. The battery pack box is characterized by comprising a lower box frame (4), wherein the lower box frame (4) comprises two box side beams (41) which are symmetrically arranged and a plurality of box side frames (42) which are respectively connected with the two box side beams (41) and are enclosed into a closed-loop structure;

a plurality of mounting point reinforcing structures as set forth in any one of claims 1 to 8 are arranged on the tank side beam (41) along the length direction thereof.

10. The battery pack case according to claim 9, wherein the lower case frame (4) further includes a plurality of reinforcement beams (43), and a plurality of the reinforcement beams (43) are arranged at intervals and are respectively connected to opposite side walls of the two case side beams (41).

11. The battery pack case according to claim 10, wherein the case side beams (41), the case frame (42), and the reinforcing beam (43) are all aluminum extruded profiles.

12. A vehicle body structure, characterized by comprising a vehicle body shell (5) and a battery pack case according to any one of claims 9-11, wherein a press-rivet nut (6) is provided in the vehicle body shell (5);

the fastening piece sequentially penetrates through the flange sleeve (2), the tank side beam (41) and the supporting gasket (1) and is fixedly connected with the press riveting nut (6) through threads.

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