A vehicle frame integrated with a battery pack

Abstract

This utility model discloses a vehicle frame with an integrated battery pack, relating to the field of vehicle frame technology. It includes a vehicle frame body, an upper battery pack shell, a lower battery pack shell, a sealing strip, and a fixing device. The upper battery pack shell is connected to the vehicle frame body via the fixing device, and the lower battery pack shell is also connected to the vehicle frame body via the fixing device. The sealing strip is located between the vehicle frame body and the upper and lower battery pack shells to achieve a sealing function. This utility model achieves lightweight design while increasing the space for battery cell arrangement, simultaneously meeting the requirements of lightweight design and high capacity, and solving the problems of high precision battery pack assembly and difficult battery pack assembly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, specifically to a vehicle frame that integrates a battery pack. Background Technology

[0002] Vehicle weight and battery energy density have a crucial impact on the range of electric vehicles. Currently, the existing electric vehicle frames and battery packs are generally assembled separately. The assembly of the frame and battery pack requires high precision, the battery pack is not easy to assemble, and a safe assembly space needs to be reserved between the frame and the battery pack. This makes it impossible to maximize the use of space and increase battery capacity. Utility Model Content

[0003] This invention provides a vehicle frame with an integrated battery pack to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A vehicle frame with an integrated battery pack includes a frame body, a battery pack housing, battery cells, a sealing strip, a cushioning device, a cooling device, and a fixing device. The frame body and the battery pack housing are connected by the fixing device. The sealing strip is located between the overlapping surfaces of the frame body and the battery pack housing. The battery cells are located in the internal cavity of the frame body. The battery pack housing is above the battery cells, the cooling device is below the battery cells, and the cushioning device is located between the frame body and the battery cells.

[0006] Preferably, the main body of the vehicle frame includes longitudinal beams, cross beams, and battery reinforcing brackets. The longitudinal beams have sealing planes at their bends. The longitudinal beams and cross beams are fixedly connected together, serving as the main structure of the vehicle frame and playing a major load-bearing role. At the same time, they realize the structural function of the battery pack frame. The battery reinforcing brackets are fixedly connected to the main body of the vehicle frame, dividing the battery cells into regions and improving the torsional stiffness and modal strength of the regions where the battery cells are located.

[0007] Preferably, the longitudinal beam, cross beam, and battery reinforcing bracket are fixedly connected to the rivet nuts, all of which are on a plane, and the battery pack housing and cooling device are fixedly connected to the vehicle frame body by the bolts.

[0008] Preferably, the battery pack housing is divided into an upper battery pack housing and a lower battery pack housing, and the upper battery pack housing has a groove drainage area for preventing water accumulation.

[0009] Preferably, the sealing strip is a silicone sealing strip.

[0010] Preferably, the cooling device is a cooling plate located at the bottom of the cell. The axial and radial lengths of the cooling plate are both smaller than the lower housing of the battery pack, so that it can be completely sealed inside the battery pack housing by the lower housing of the battery pack.

[0011] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0012] This utility model provides a vehicle frame that integrates a battery pack. By setting up a vehicle frame body, battery pack shell, battery cells, sealing strips, buffer devices, cooling devices, and fixing devices, the weight is reduced while the space for battery cell arrangement is increased. This satisfies the requirements of lightweighting and high capacity, and solves the problems of high precision requirements for battery pack assembly and difficulty in assembling the battery pack. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a vehicle frame incorporating a battery pack according to this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of a vehicle frame incorporating a battery pack according to this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a vehicle frame incorporating a battery pack according to this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a vehicle frame incorporating a battery pack according to this utility model.

[0017] In the diagram: 1. Main frame; 11. Longitudinal beam; 12. Crossbeam; 13. Battery reinforcement bracket; 2. Battery pack housing; 21. Upper battery pack housing; 22. Lower battery pack housing; 3. Battery cell; 4. Sealing strip; 5. Buffer device; 6. Cooling device; 7. Fixing device; 71. Rivet nut; 72. Bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The present invention will be further described in detail below with reference to embodiments:

[0020] like Figure 1As shown, this utility model provides a vehicle frame with an integrated battery pack. The frame body 1 and the battery pack shell 2 are connected by a fixing device 7. A sealing strip 4 is located between the overlapping surfaces of the frame body 1 and the battery pack shell 2. The battery cell 3 is located in the internal cavity of the frame body 1. The battery pack shell 2 is above the battery cell 3, and a cooling device 6 is located at the bottom of the battery cell 3. The bottom of the cooling device 6 is the battery pack shell 2. A buffer device 5 is located between the frame body 1 and the battery cell 3.

[0021] like Figure 2 As shown, this utility model provides a vehicle frame with an integrated battery pack. The main body of the frame 1 includes a longitudinal beam 11, a cross beam 12, and a battery pack reinforcing bracket 13. The longitudinal beam 11 and the cross beam 12 are fixedly connected. The battery pack reinforcing bracket 13 is fixedly connected to the longitudinal beam 11 and the cross beam 12 respectively. The rivet nut 71 is fixed to the main body of the frame 1.

[0022] like Figure 3 and Figure 4 As shown, in this embodiment, the bolt 72 passes through the lower housing 22 of the battery pack, the sealing strip 4 and the cooling device 6 in succession, and is fixed to the frame body 1, so that the lower housing 22 of the battery pack and the frame body 1 are sealed together.

[0023] like Figure 4 As shown, in this embodiment, the battery cell 3 is further fixed to the frame body 1, and the buffer device 5 is disposed between the frame body 1 and the battery cell 3, which plays a role in fixing and limiting the battery cell 3, and protects the battery cell 3 when the frame body 1 undergoes elastic deformation.

[0024] In this embodiment, the sealing strip 4 is further made of silicone.

[0025] In this embodiment, the cooling device 5 further adopts a cooling plate, the axial and radial lengths of which are both smaller than the lower housing 22 of the battery pack.

[0026] In this embodiment, the upper housing 21 of the battery pack further has a grooved drainage area for preventing water accumulation.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A frame integrating a battery pack, characterized by, The vehicle includes a frame body (1), a battery pack housing (2), a battery cell (3), a sealing strip (4), a buffer device (5), a cooling device (6), and a fixing device (7). The frame body (1) and the battery pack housing (2) are connected by the fixing device (7). The sealing strip (4) is located between the overlapping surfaces of the frame body (1) and the battery pack housing (2). The battery cell (3) is located in the cavity inside the frame body (1). The battery pack housing (2) is above the battery cell (3). The cooling device (6) is at the bottom of the battery cell (3). The battery pack housing (2) is at the bottom of the cooling device (6). The buffer device (5) is located between the frame body (1) and the battery cell (3).

2. A vehicle frame according to claim 1, wherein The frame body (1) includes a longitudinal beam (11), a cross beam (12), and a battery reinforcement bracket (13). The longitudinal beam (11) has a sealing plane at the bend. The longitudinal beam (11) and the cross beam (12) are fixedly connected together. As the main structure of the frame, the longitudinal beam (11) plays a major role in bearing the load and also realizes the structural function of the battery pack frame. The battery reinforcement bracket (13) is fixedly connected to the frame body (1) and divides the battery cell (3) into regions to improve the torsional stiffness and modal strength of the region where the battery cell (3) is located.

3. The frame of a battery pack according to claim 1, wherein The fixing device (7) is divided into bolts (72) and rivet nuts (71). The frame body (1) is fixedly connected to the rivet nuts (71). The rivet nuts (71) are all on a plane. The battery pack housing (2) and the cooling device (6) are connected to the frame body (1) through the bolts (72).

4. The frame integrating a battery pack according to claim 1, wherein The battery pack housing (2) is divided into an upper battery pack housing (21) and a lower battery pack housing (22). The upper battery pack housing (21) has a groove drainage area for preventing water accumulation.

5. The frame of a battery pack according to claim 1, wherein The sealing strip (4) is a silicone sealing strip.

6. The frame of a battery pack according to claim 1, wherein The cooling device (6) is located at the bottom of the battery cell (3).

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