Chassis type power battery frame and new energy heavy truck

Abstract

The invention discloses a chassis type power battery frame and a new energy heavy truck, and relates to the technical field of automobile structures. The number of the battery frames is two, the two battery frames are arranged on the two sides of the frame correspondingly, the battery frames are used for storing power batteries, and the battery frames are high-strength light steel parts; and the connecting mechanism is arranged between the frame and the battery frame, and the connecting mechanism is used for connecting the frame and the battery frame. According to the chassis type power battery frame and the new energy heavy truck, the battery frame is made of the light high-strength steel material, the bearing strength of the battery frame can be improved, the mass of the battery frame can be reduced, the self weight of the new energy heavy truck is reduced, and therefore the probability of vehicle roll is reduced, and safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive structures, and more specifically, to a chassis-type power battery frame. In addition, the present invention also relates to a new energy heavy truck including the above-mentioned chassis-type power battery frame. Background Art

[0002] A new energy heavy truck, that is, a new energy heavy-duty truck, refers to a commercial vehicle powered by new energy and having a large load capacity and transportation capacity. The new energy heavy truck reduces the emissions of pollutants such as nitrogen oxides and particulate matter generated by traditional fuel engines. Taking a pure electric heavy truck as an example, during its operation, no tail gas pollutants are generated, which has a positive effect on improving air quality and reducing environmental problems such as smoggy weather. This is of particular significance for key areas of pollution emissions such as logistics transportation and ports around big cities. Due to the development trend of new energy heavy trucks, in recent years, the power demand for power batteries of heavy trucks has been increasing. Currently, most of the market uses rear-mounted power battery frames, with a relatively high center of gravity of the whole vehicle, a relatively heavy self-weight of the heavy truck, and the vehicle is prone to rollover, and in severe cases, it will lead to overturning.

[0003] In summary, how to avoid vehicle rollover is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a chassis-type power battery frame, the battery frame of which is designed with lightweight high-strength steel, which can improve the bearing strength of the battery frame and reduce the weight of the battery frame, reduce the self-weight of the vehicle, and prevent the vehicle from rolling over.

[0005] Another object of the present invention is to provide a new energy heavy truck including the above-mentioned chassis-type power battery frame.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A chassis-type power battery frame, comprising:

[0008] A vehicle frame;

[0009] Two battery frames, which are respectively arranged on both sides of the vehicle frame, and the battery frames are used for storing power batteries, and the battery frames are made of high-strength lightweight steel;

[0010] A connecting mechanism, which is arranged between the vehicle frame and the battery frame, and the connecting mechanism is used to connect the vehicle frame and the battery frame.

[0011] Preferably, the vehicle frame includes a left longitudinal beam, a right longitudinal beam and two cross beams. The left longitudinal beam and the right longitudinal beam are connected by the two cross beams to form a rectangular structure. The lengths of the left longitudinal beam and the right longitudinal beam are the same and less than the length of the cross beam.

[0012] Preferably, there are six connecting mechanisms, and each battery frame is connected to the vehicle frame through three of the connecting mechanisms.

[0013] Preferably, the connecting mechanism includes a first plate and a second plate. The first plate and the second plate are arranged in parallel and fixedly connected by a reinforcing rib. The area of the first plate is smaller than that of the second plate. The first plate is connected to the vehicle frame, and the second plate is connected to the battery frame.

[0014] Preferably, a plurality of perforations are provided on the surfaces of the first plate and the second plate. The first plate and the vehicle frame are connected by a plurality of high-strength bolts, and the second plate and the battery frame are connected by a plurality of the high-strength bolts.

[0015] Preferably, a connecting cross beam is provided at the bottom of the vehicle frame, and two ends of the connecting cross beam are respectively connected to the bottoms of the two battery frames.

[0016] Preferably, the battery frame includes a bottom plate, side plates and a top limiting rod. The bottom plate and the side plates are fixedly connected, and the top limiting rod is detachably connected to the side plates.

[0017] Preferably, a plurality of perforations are provided on the left longitudinal beam and the right longitudinal beam. The left longitudinal beam and the right longitudinal beam are connected to the vehicle body by high-strength bolts.

[0018] Preferably, a step frame is provided on the battery frame.

[0019] A new energy heavy truck includes a chassis-type power battery frame, and the chassis-type power battery frame is the chassis-type power battery frame of any one of the above.

[0020] A chassis-type power battery frame provided by the present invention has two battery frames, which are respectively connected to both sides of the vehicle frame. The connection between the battery frame and the vehicle frame is realized through a connecting mechanism. The battery frame is designed with lightweight high-strength steel, so as to improve the bearing strength of the battery frame and reduce the mass of the battery frame. When the battery frame is installed on the vehicle frame, the self-weight of the vehicle can be reduced, and the probability of vehicle rollover can be reduced. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0022] Figure 1 Structural schematic diagram of the chassis-type power battery frame provided by the present invention;

[0023] Figure 2 Front view of the chassis-type power battery frame provided by the present invention;

[0024] Figure 3 Rear view of the chassis-type power battery frame provided by the present invention;

[0025] Figure 4 Top view of the chassis-type power battery frame provided by the present invention;

[0026] Figure 5 Front view of the connecting mechanism provided by the present invention;

[0027] Figure 6 Side view of the connecting mechanism provided by the present invention;

[0028] Figure 7 Rear view of the connecting mechanism provided by the present invention;

[0029] Figure 8 Top view of the connecting mechanism provided by the present invention;

[0030] Figure 9 Structural schematic diagram of the connecting mechanism provided by the present invention.

[0031] Reference numerals:

[0032] 1 - vehicle frame; 2 - battery frame; 3 - connecting mechanism; 4 - left longitudinal beam; 5 - right longitudinal beam; 6 - cross beam; 7 - first plate; 8 - second plate; 9 - connecting cross beam; 10 - step frame. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] The core of the present invention is to provide a chassis - type power battery frame. The battery frame is made of high - strength lightweight steel to reduce the weight of the whole vehicle and the probability of vehicle rollover.

[0035] Another core of the present invention is to provide a new - energy heavy - duty truck including the above - mentioned chassis - type power battery frame.

[0036] It should be noted that the orientation or positional relationship indicated by "up", "down", "front", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0037] A chassis - type power battery frame provided by the present application includes: a vehicle frame 1, a battery frame 2 and a connecting mechanism 3;

[0038] Among them, the vehicle frame 1 serves as the base of the power battery frame and is installed on the vehicle body;

[0039] There are two battery frames 2. The two battery frames 2 are respectively arranged on both sides of the vehicle frame 1. The battery frame 2 is used to store power batteries, and the battery frame 2 is a high - strength lightweight steel material part;

[0040] The connecting mechanism 3 is arranged between the vehicle frame 1 and the battery frame 2, and the connecting mechanism 3 is used to connect the vehicle frame 1 and the battery frame 2.

[0041] Specifically, for the structure of the vehicle frame 1, please refer to the attached Figure 1 and the attached Figure 4 , on both sides of which there is respectively one battery frame 2. The battery frame 2 is a hollow structure and is used to store new - energy batteries. A connecting mechanism 3 is arranged between the battery frame 2 and the vehicle frame 1. The connection method of connecting cross - beams through the connecting mechanism 3 ensures the strength of the frame, and the power batteries can be pre - installed in advance. In addition, the segmented connection can effectively solve the damage to the battery frame 2 caused by the distortion of the vehicle frame 1. Since the battery frame 2 is made of lightweight high - strength steel, after the whole chassis - type power battery frame is installed on the vehicle body, the weight of the whole vehicle is reduced, thereby reducing the probability of vehicle rollover and improving safety.

[0042] In addition, the battery frame 2 adopts a left - right split structure, which is more convenient for transportation.

[0043] On the basis of the above - mentioned embodiment, the vehicle frame 1 includes a left longitudinal beam 4, a right longitudinal beam 5 and two cross - beams 6. The left longitudinal beam 4 and the right longitudinal beam 5 are connected by two cross - beams 6 to form a rectangular structure. The lengths of the left longitudinal beam 4 and the right longitudinal beam 5 are the same and less than the length of the cross - beam 6.

[0044] Specifically, for the structures of the left longitudinal beam 4 and the right longitudinal beam 5, please refer to the attachedFigure 1 , which are respectively arranged at both ends of the cross beam 6 and used to connect the two cross beams 6 to improve the overall integration. For the structures of the left longitudinal beam 4 and the right longitudinal beam 5, the design idea can refer to the prior art and is not the main improvement point of this application, so it will not be elaborated here.

[0045] In some embodiments, there are six connecting mechanisms 3, and each battery frame 2 is connected to the vehicle frame 1 through three connecting mechanisms 3.

[0046] Specifically, there are three connecting mechanisms 3 arranged between each battery frame 2 and the cross beam 6 of the vehicle frame 1. The battery frame 2 is of a cuboid structure. To ensure the structural strength, three connecting mechanisms 3 need to be arranged in parallel along the battery frame 2. An independent connecting mechanism 3 is provided at the connection between the battery frame 2 and the heavy truck vehicle frame 1, which can realize the pre-installation of power batteries on the battery frame 2 and is also convenient for disassembly and assembly, solving the problem of difficult disassembly and assembly of power batteries.

[0047] In some embodiments, the connecting mechanism 3 includes a first plate 7 and a second plate 8. The first plate 7 and the second plate 8 are arranged in parallel and fixedly connected through a reinforcing rib. The area of the first plate 7 is smaller than that of the second plate 8. The first plate 7 is connected to the vehicle frame 1, and the second plate 8 is connected to the battery frame 2.

[0048] Specifically, the structure of the connecting mechanism 3 can refer to the attached Figure 9 , the relative dimensions of the first plate 7 and the second plate 8 can refer to the attached Figure 5 and the attached Figure 7 , the structure of the reinforcing rib can refer to the attached Figure 6 and the attached Figure 8 , the setting method of the connecting mechanism 3 can refer to the attached Figure 1 , the attached Figure 2 and the attached Figure 3 . During installation, since the length of the battery frame 2 in the vertical direction is greater than the length of the vehicle frame 1, it is necessary to connect the first plate 7 with a smaller area to the cross beam 6 of the vehicle frame 1, and connect the second plate 8 with a larger area to the battery frame 2. Generally, the upper and lower ends of the second plate 8 are respectively aligned with the upper and lower ends of the battery frame 2 to avoid structural redundancy.

[0049] On the basis of the above embodiments, a plurality of through holes are provided on the surfaces of both the first plate 7 and the second plate 8. The first plate 7 and the vehicle frame 1 are connected by a plurality of high-strength bolts, and the second plate 8 and the battery frame 2 are connected by a plurality of high-strength bolts.

[0050] Specifically, a number of perforations penetrating their plate surfaces are distributed on the surfaces of the first plate 7 and the second plate 8. The size of the perforations depends on the size of the high-strength bolts. The connecting mechanism 3 is connected to the vehicle frame 1 and the battery frame 2 through high-strength bolts. The high-strength bolts have a relatively high strength grade and can generally withstand large tensile and shear forces. This enables them to bear various complex loads during vehicle driving in the vehicle frame connection, including the weight of the vehicle itself, the weight of the goods, and the dynamic loads generated by bumps and vibrations during driving. Under the same connection conditions, high-strength bolts can provide stronger connection strength, ensure the rigidity of the vehicle frame connection part, reduce the deformation at the connection, and thus improve the stability and reliability of the entire vehicle frame.

[0051] In some embodiments, a connecting cross beam 9 is provided at the bottom of the vehicle frame 1, and the two ends of the connecting cross beam 9 are respectively connected to the bottoms of the two battery frames 2.

[0052] Specifically, a connecting cross beam 9 is provided at the bottom of the vehicle frame 1. The connecting cross beam 9 can play the role of connection and component integration. The connecting cross beam 9 is equivalent to a link, tightly connecting the longitudinal beams of the vehicle frame 1 and other related components together, and can effectively improve the stability of the two battery frames 2 on both sides of the vehicle frame 1. As shown in the attached Figure 1 figure, three assembled connecting cross beams 9 are provided at the bottoms of the left and right battery frames 2 of the vehicle frame 1 for support, ensuring that the frame can be regarded as a set of overall structures after being installed on the vehicle and improving the overall performance of the frame.

[0053] In some embodiments, the battery frame 2 includes a bottom plate, side plates, and a top limiting rod. The bottom plate is fixedly connected to the side plates, and the top limiting rod is detachably connected to the side plates.

[0054] Specifically, the structure of the battery frame 2 can be referred to in the attached Figure 1 figure. The main base of the battery frame 2 is the bottom plate and the side plates. The bottom plate plays a supporting role for the new energy battery. The height of the side plates depends on the height of the new energy battery. The side plates and the top limiting rod cooperate to limit the new energy battery, preventing the battery from shaking during vehicle operation. The connection between the top limiting rod and the side plates is a detachable connection, preferably achieved by high-strength bolts to facilitate the installation of the new energy battery. It should be noted that generally, welding is not selected to achieve the connection between the top limiting rod and the side plates because when the connection between the top limiting rod and the side plates is required, the new energy battery has already been placed inside the battery frame 2, and the welding method may affect the new energy battery.

[0055] In some embodiments, a number of perforations are provided on the left longitudinal beam 4 and the right longitudinal beam 5, and the left longitudinal beam 4 and the right longitudinal beam 5 are connected to the vehicle body through high-strength bolts.

[0056] Specifically, a plurality of perforations are provided at the tops of the left longitudinal beam 4 and the right longitudinal beam 5, and they are connected to other structures of the vehicle body through high-strength bolts, which facilitates the pre-installation of new energy batteries.

[0057] On the basis of the above embodiments, a step frame 10 is provided on the battery frame 2.

[0058] Specifically, the step frame 10 is provided on the side plate of the battery frame 2, and there are a plurality of step frames 10, which facilitates construction workers to install new energy batteries and can also improve the integration of the frame. Setting the step frame 10 on the battery frame 2 solves the problem that the chassis-type frame occupies the space on both sides of the vehicle frame 1 and there is no place to assemble the vehicle steps. Integrating the step frame 10 into the battery frame 2 can also save costs.

[0059] In addition to the above chassis-type power battery frame, the present invention also provides a new energy heavy truck including the chassis-type power battery frame disclosed in the above embodiments. For the structures of other parts of this new energy heavy truck, please refer to the prior art and will not be elaborated herein.

[0060] In this specification, each embodiment is described in a progressive manner. The key points of each embodiment are the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0061] The above has introduced in detail a chassis-type power battery frame and a new energy heavy truck provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A chassis-type power battery frame, characterized in that Comprising: Frame (1); Battery frames (2), there are two of them, and the two battery frames (2) are respectively arranged on both sides of the frame (1). The battery frames (2) are used for storing power batteries, and the battery frames (2) are made of high-strength lightweight steel materials; Connection mechanism (3), arranged between the frame (1) and the battery frame (2), and the connection mechanism (3) is used to connect the frame (1) and the battery frame (2).

2. The chassis-type power battery frame according to claim 1, wherein, The frame (1) includes a left longitudinal beam (4), a right longitudinal beam (5) and two cross beams (6). The left longitudinal beam (4) and the right longitudinal beam (5) are connected by the two cross beams (6) to form a rectangular structure. The lengths of the left longitudinal beam (4) and the right longitudinal beam (5) are the same and less than the length of the cross beam (6).

3. The chassis-type power battery frame according to claim 1, characterized in that, There are six connection mechanisms (3), and each battery frame (2) is connected to the frame (1) through three connection mechanisms (3).

4. The chassis-type power battery frame according to claim 1, characterized in that The connection mechanism (3) includes a first plate (7) and a second plate (8). The first plate (7) and the second plate (8) are arranged in parallel and fixedly connected by a reinforcing rib. The area of the first plate (7) is smaller than that of the second plate (8). The first plate (7) is connected to the frame (1), and the second plate (8) is connected to the battery frame (2).

5. The chassis-type power battery frame according to claim 4, characterized in that, A plurality of through holes are provided on the surfaces of the first plate (7) and the second plate (8). The first plate (7) and the frame (1) are connected by a number of high-strength bolts, and the second plate (8) and the battery frame (2) are connected by a number of high-strength bolts.

6. The chassis-type power battery frame according to claim 1, characterized in that, A connection cross beam (9) is provided at the bottom of the frame (1), and the two ends of the connection cross beam (9) are respectively connected to the bottoms of the two battery frames (2).

7. The chassis-type power battery frame according to claim 1, characterized in that, The battery frame (2) includes a bottom plate, side plates and a top limiting rod. The bottom plate and the side plates are fixedly connected, and the top limiting rod is detachably connected to the side plates.

8. The chassis-type power battery frame according to claim 2, characterized in that A plurality of through holes are provided on the left longitudinal beam (4) and the right longitudinal beam (5), and the left longitudinal beam (4) and the right longitudinal beam (5) are connected to the vehicle body by high-strength bolts.

9. The chassis-type power battery frame according to any one of claims 1 to 8, characterized in that A step frame (10) is provided on the battery frame (2).

10. A new energy heavy truck, including a chassis-type power battery frame, is characterized in that, The chassis-type power battery frame is the chassis-type power battery frame according to any one of claims 1 to 9.

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