Vehicle chassis frame and bus

Abstract

The utility model relates to the field of vehicles, and provides a vehicle chassis frame and a bus, the vehicle chassis frame comprises a front wheel frame, a rear wheel frame and a battery frame horizontally arranged between the front wheel frame and the rear wheel frame; one or more rows of battery placing grooves or two or more rows of battery placing grooves are formed in the battery rack in a criss-cross mode, wiring grooves are formed in the side faces, facing the battery placing grooves, of the battery rack, access holes are formed in the longitudinal beams, located on the outermost side of the battery rack, of the battery placing grooves, and wiring holes are formed in the cross beams and / or the longitudinal beams of the adjacent battery placing grooves. The bicycle frame between the front wheel frame and the rear wheel frame is designed to be the battery frame, meanwhile, the size of the battery frame can be conveniently designed so as to adapt to an existing battery pack in the market, or the corresponding battery pack can be customized for use according to the size of a battery containing groove formed by dividing the battery frame, and the purpose of reasonably planning and assembling the battery pack is achieved. The design is more reasonable and safer, and the effects of reasonable layout and space utilization rate improvement are achieved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, and in particular to a vehicle chassis frame and a bus. Background Art

[0002] With the development of new energy vehicles, new energy buses or public buses are also being updated. The broad development prospects of new energy make the vehicle lighter as a whole, and the energy efficiency of electric vehicles is greatly improved. With the use of information technology, new energy vehicles have a higher level of intelligence and networking.

[0003] However, in the design of existing new energy buses or public buses, the location design of new energy batteries and power equipment directly affects the vehicle's power performance and corresponding safety. However, existing new energy vehicles are designed in the original oil vehicle architecture, which leads to differences in the control layout for the installation of batteries and corresponding power, such as the mismatch of vehicle layout and counterweight, which in turn leads to reduced vehicle handling performance. Or, there is a situation where the battery is exposed, which poses certain safety hazards and other problems. Utility Model Content

[0004] The utility model aims to provide a vehicle chassis frame and a bus, aiming to provide a new chassis structure to solve the problem of low space utilization of the existing oil-to-electric vehicle chassis.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a vehicle chassis frame, comprising a front wheel frame, a rear wheel frame and a battery frame horizontally arranged between the front wheel frame and the rear wheel frame;

[0006] The battery rack is crisscrossed with one or two rows of battery placement slots, the battery rack is provided with wiring slots on the side facing the battery placement slots, the battery placement slots are provided with inspection holes on the outermost longitudinal beams of the battery rack, and wiring holes are provided on the cross beams and / or longitudinal beams adjacent to the battery placement slots.

[0007] Preferably, a front suspension composite beam fixedly assembled with the front wheel frame is provided in the middle of the front end cross beam of the battery rack;

[0008] A first reinforcing plate connecting the battery rack and the front wheel rack is arranged on the top surface of the front suspension combined beam, and a second reinforcing plate is arranged on the bottom surface of the front suspension combined beam.

[0009] Preferably, the rear wheel frame includes a keel frame, and an assembly grid frame, a first rear wheel grid frame, a second rear wheel grid frame and a protective grid frame are sequentially arranged on the keel frame from the battery frame to the tail end;

[0010] A transverse groove beam is arranged at the bottom of the assembly grid frame, and the rear end cross beam of the battery rack is arranged in the clamping groove of the transverse groove beam;

[0011] An installation space for installing a rear wheel mechanism is provided between the first rear wheel grille frame and the second rear wheel grille frame.

[0012] Preferably, a power rack and an extended battery rack stacked with the power rack are arranged on a side of the protective grille frame away from the battery rack.

[0013] Preferably, two lower thrust rods are symmetrically arranged on the transverse groove beam; and two upper thrust rods are symmetrically arranged on the top of the assembly grid frame.

[0014] Preferably, the battery rack comprises a frame with an outer contour, wherein a bracket-type crossbeam is provided in the frame to separate and form the battery placement grooves, or a bracket-type crossbeam and a channel-type longitudinal beam are provided in the frame to separate and form the battery placement grooves, and a battery tray is provided on the bottom surface of the battery placement grooves separated in the frame;

[0015] The wiring trough is arranged on the side of the frame facing the battery placement groove, and the inspection hole is arranged on the longitudinal beam of the frame; the wiring hole is arranged on the corbel type cross beam and the channel steel type longitudinal beam.

[0016] Preferably, a plurality of angle iron connectors are provided on two opposite sides of the battery tray; and a hollow through hole is provided on the bottom surface of the battery tray.

[0017] Preferably, a pipeline fixing plate is provided on the top of the wiring trough.

[0018] Preferably, the front wheel frame is provided with a cab chassis, and a protective frame is provided at the front end of the cab chassis.

[0019] A bus is also provided, comprising the vehicle chassis frame as described above.

[0020] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0021] 1. The frame between the front wheel frame and the rear wheel frame is designed as a battery rack, and the size of the battery rack can be designed to fit the existing battery packs on the market, or the corresponding battery packs can be customized according to the size of the battery placement slots divided by the battery rack, so as to achieve the purpose of reasonable planning and assembly of battery packs. The design will be more reasonable and safe, and achieve the effect of reasonable layout and improved space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the vehicle chassis frame described in the utility model;

[0023] Figure 2 for Figure 1 A is the enlarged view of the circle marked in center;

[0024] Figure 3 A top view of the vehicle chassis frame of the utility model;

[0025] Figure 4 for Figure 3 The enlarged view of the circle marked in B;

[0026] Figure 5 This is a structural diagram of the vehicle chassis frame of the utility model in a state where a battery pack is installed;

[0027] Figure 6 It is a structural schematic diagram of the front suspension composite beam of the vehicle chassis frame described in the utility model;

[0028] Figure 7 It is a structural schematic diagram of the battery rack of the vehicle chassis frame described in the utility model;

[0029] Figure 8 It is a partial schematic diagram of the rear wheel frame of the vehicle chassis frame described in the utility model.

[0030] Description of reference numerals:

[0031] 10. Front wheel frame; 101. Cab chassis; 102. Protective frame;

[0032] 20, rear wheel frame; 201, keel frame; 202, assembly grid frame; 203, first rear wheel grid frame; 204, second rear wheel grid frame; 205, protection grid frame; 206, installation space; 207, power frame; 208, extended battery frame;

[0033] 2021, transverse groove beam; 2022, lower thrust rod; 2023, upper thrust rod;

[0034] 30. Battery rack; 301. Battery placement slot; 302. Wiring slot; 303. Inspection hole; 304. Wiring hole; 305. Frame; 306. Corbel crossbeam; 307. Channel steel longitudinal beam; 308. Battery tray;

[0035] 3021, pipeline fixing plate;

[0036] 3081, angle iron connector; 3082, hollow through hole;

[0037] 40. front suspension composite beam; 401. first reinforcement plate; 402. second reinforcement plate. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0039] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] When an element is referred to as being “fixed to” or “disposed on” or “provided 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 may be directly connected to the other element or indirectly connected to the other element.

[0041] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0042] Embodiment 1

[0043] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the present embodiment provides a vehicle chassis frame, including a front wheel frame 10, a rear wheel frame 20 and a battery rack 30 horizontally arranged between the front wheel frame 10 and the rear wheel frame 20; the battery rack 30 is crisscrossed with one column and multiple rows or two columns and multiple rows of battery placement slots 301, and the battery rack 30 is provided with a wiring groove 302 on the side of the battery rack 30 facing the battery placement slots 301, and the battery placement slots 301 are provided with inspection holes 303 on the outermost longitudinal beams of the battery rack 30, and wiring holes 304 are provided on the cross beams and / or longitudinal beams of adjacent battery placement slots 301.

[0044] Specifically, the chassis frame between the front wheel frame 10 and the rear wheel frame 20 is designed as a battery rack 30. The space at this location is relatively large, which is convenient for placing multiple groups of battery packs in a flat manner, and at the same time will not affect the height of the vehicle chassis, so that the vehicle will not be bloated. In addition, the number of batteries to be placed can be designed according to different vehicles; for example, for a sedan, a battery placement slot 301 with multiple rows can be designed; and for a bus or a public bus, two battery placement slots with multiple rows can be designed to meet the use purposes of different vehicles.

[0045] Furthermore, a wiring groove 302 can be provided on the battery rack 30 to arrange the power line of the battery pack and protect the power line. In order to facilitate later maintenance or repair, an inspection hole 303 is provided on the outermost longitudinal beam of the battery rack 30. The position and number of the inspection holes 303 can be designed relative to the panel on the battery pack, so that the battery pack panel can be clearly checked without disassembling the entire battery pack for repair, thereby improving the convenience of use.

[0046] like Figure 6 As shown, in this embodiment, a front suspension composite beam 40 fixedly assembled with the front wheel frame 10 is provided in the middle part of the front end cross beam of the battery rack 30; a first reinforcement plate 401 connecting the battery rack 30 and the front wheel frame 10 is provided on the top surface of the front suspension composite beam 40, and a second reinforcement plate 402 is provided on the bottom surface of the front suspension composite beam 40.

[0047] Specifically, the front suspension composite beam 40 is used to connect the battery rack 30 and the front wheel rack 10. One end is locked on the front end cross beam of the battery rack 30 and is locked and reinforced by the second reinforcement plate 402. The second reinforcement plate 402 is a sheet structure, supported on the bottom surface of the front suspension composite beam 40, to achieve the reinforcement effect between the front suspension composite beam 40 and the battery rack 30. The first reinforcement plate 401 is a "cross" plate-shaped structure. The cross plate of the "cross" is locked on the top surface of the front cross beam of the battery rack 30, and the vertical plate at one end of the "cross" is locked on the top surface of the front suspension composite beam 40. In this way, the purpose of strengthening the structure of the front suspension composite beam 40 is achieved, making the matching structure of the battery rack 30 stable. Furthermore, the front suspension composite beam 40 and the front wheel rack 10 can also be fixed by welding to improve stability.

[0048] like Figure 1 and Figure 8As shown, in this embodiment, the rear wheel frame 20 includes a keel frame 201, and an assembly grille frame 202, a first rear wheel grille frame 203, a second rear wheel grille frame 204 and a protective grille frame 205 are sequentially arranged on the keel frame 201 from the battery frame 30 to the tail end; a cross groove beam 2021 is arranged at the bottom of the assembly grille frame 202, and the rear end cross beam of the battery frame 30 is arranged in the groove of the cross groove beam 2021; an installation space 206 for installing the rear wheel mechanism is arranged between the first rear wheel grille frame 203 and the second rear wheel grille frame 204.

[0049] Specifically, the keel frame 201 is composed of two symmetrical grid frames, and the assembly grid frame 202, the first rear wheel grid frame 203, the second rear wheel grid frame 204 and the protection grid frame 205 are horizontally welded to the keel frame 201, thus forming the rear wheel frame 20 structure. And by designing the size of the installation space 206, the rear wheel mechanisms such as the wheel hub, axle and wheel of different models can be adapted to form the required rear wheel chassis frame.

[0050] Furthermore, if Figure 1 and Figure 3 As shown, in this embodiment, a power rack 207 and an extended battery rack 208 are arranged on the side of the protective grille frame 205 away from the battery rack 30. The power rack 207 can be installed with one or more of a motor, a gearbox, an oil pump, an air pump or a controller, so that relatively heavy equipment can be placed at a low position, so that the center of gravity of the vehicle is stable and safety is improved.

[0051] like Figure 3 and Figure 4 As shown, in this embodiment, two lower thrust rods 2022 are symmetrically arranged on the transverse groove beam 2021; and two upper thrust rods 2023 are symmetrically arranged on the top of the assembly grid frame 202. One end of the lower thrust rod 2022 is welded or locked on the back side of the transverse groove beam 2021 (i.e., the side away from the battery rack 30), and an opening is arranged toward the rear wheel frame 20 to facilitate the installation of the push rod. Similarly, the upper thrust rod 2023 is located above the lower thrust rod 2022 and is installed on the assembly grid frame 202. The upper thrust rod 2023 is also provided with an opening to facilitate the installation of the push rod, thus forming the required installation point, and achieving the purpose of installing the wheel hub.

[0052] like Figure 1 , Figure 2 and Figure 7As shown, the battery rack 30 in this embodiment includes a frame 305 with an outer contour, and a corbel-type crossbeam 306 is arranged in the frame 305 to separate and form a battery placement groove 301, or a corbel-type crossbeam 306 and a channel-type longitudinal beam 307 are arranged in the frame 305 to separate and form a battery placement groove 301, and a battery tray 308 is arranged on the bottom surface of the battery placement groove 301 separated in the frame 305; the wiring groove 302 is arranged on the side of the frame 305 facing the battery placement groove 301, and the inspection hole 303 is arranged on the longitudinal beam of the frame 305; the wiring hole 304 is arranged on the corbel-type crossbeam 306 and the channel-type longitudinal beam 307.

[0053] Specifically, if a bus or public transport is taken as an example, two columns and three rows of battery placement slots 301 can be set on the battery rack 30, so that six battery packs can be placed. The frame 305 adopts a channel steel design, and the groove of the channel steel can be directly used to design a wiring groove 302. Similarly, the longitudinal beam in the middle of the frame 305 can be an I-shaped channel steel, or two channel steels can be installed back to back, so that wiring grooves 302 can be formed on both sides, and the required through holes are formed by penetrating the longitudinal beams for wiring. At the same time, the battery rack 30 can be divided into six battery placement slots 301, and then with the installation of the battery tray 308, a corresponding number of battery packs can be installed, so as to achieve the effect of flat-laying installation of multiple battery packs, so that the overall thickness of the vehicle chassis frame will not increase. At the same time, the design of the steel beam structure has a large resistance to bending deformation, which can play a good role in protecting the battery pack.

[0054] like Figure 2 As shown, in this embodiment, a plurality of angle iron connectors 3081 are provided on opposite sides of the battery tray 308; and a hollow through hole 3082 is provided on the bottom surface of the battery tray 308. Specifically, the angle iron connectors 3081 can be used to install the battery tray 308 on the crossbeam and longitudinal beam of the battery rack 30 by bolting or welding. A plurality of symmetrically arranged angle iron connectors 3081 form a plurality of supporting fixing points to improve the stability of the structure.

[0055] Furthermore, a hollow through hole 3082 is provided on the bottom surface of the battery tray 308, which is beneficial to the heat dissipation and ventilation of the battery pack, or facilitates the subsequent installation of corresponding cooling pipes and other cooling equipment for cooling, so as to ensure that the battery has a good working environment and improve practicality.

[0056] like Figure 2 and Figure 7As shown, in this embodiment, a pipeline fixing plate 3021 is provided at the top of the wiring trough 302. The pipeline fixing plate 3021 can be a strip plate with equidistantly arranged through holes, which can be designed on the top of the wiring trough 302 by welding. The power cord can be fixed or the pipeline for arranging the power cord can be arranged by bundling through the through holes, so that the power cord can be arranged in an orderly manner, which is also easy to install and improves convenience.

[0057] like Figure 1 and Figure 3 As shown, in this embodiment, the front wheel frame 10 is provided with a cab chassis 101, and a protective frame 102 is provided at the front end of the cab chassis 101. The cab chassis 101 is designed to be integrally formed with the vehicle chassis frame, which is conducive to improving the structural strength of the chassis frame in the cab area. At the same time, with the design of the protective frame 102, it is convenient to install structures such as protective beams, thereby improving the strength and safety of the structure.

[0058] Embodiment 2

[0059] This embodiment provides a bus, including a vehicle chassis frame as described in the first embodiment. The specific vehicle chassis frame can also be used in buses, trucks or cars, etc., by designing the number of battery placement slots 301 in the corresponding battery frame 30 to adapt to vehicles of different sizes, so as to achieve the purpose of designing for a variety of vehicle models. The design of the vehicle chassis frame can reasonably arrange the position of the battery pack without affecting the structural design of other positions of the vehicle. It also has good protection and vehicle body rationality, so that the entire vehicle chassis frame has good structural stability and rationality.

[0060] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A vehicle chassis frame, characterized in that: It includes a front wheel frame, a rear wheel frame and a battery frame horizontally arranged between the front wheel frame and the rear wheel frame; The battery rack is crisscrossed with one or two rows of battery placement slots, the battery rack is provided with wiring slots on the side facing the battery placement slots, the battery placement slots are provided with inspection holes on the outermost longitudinal beams of the battery rack, and wiring holes are provided on the cross beams and / or longitudinal beams adjacent to the battery placement slots.

2. The vehicle chassis frame according to claim 1, characterized in that: A front suspension composite beam fixedly assembled with the front wheel frame is provided in the middle of the front end cross beam of the battery rack; A first reinforcing plate connecting the battery rack and the front wheel rack is arranged on the top surface of the front suspension combined beam, and a second reinforcing plate is arranged on the bottom surface of the front suspension combined beam.

3. The vehicle chassis frame according to claim 1, characterized in that: The rear wheel frame includes a keel frame, and an assembly grid frame, a first rear wheel grid frame, a second rear wheel grid frame and a protective grid frame are sequentially arranged on the keel frame from the battery frame to the tail end; A transverse groove beam is arranged at the bottom of the assembly grid frame, and the rear end cross beam of the battery rack is arranged in the clamping groove of the transverse groove beam; An installation space for installing a rear wheel mechanism is provided between the first rear wheel grille frame and the second rear wheel grille frame.

4. The vehicle chassis frame according to claim 3, characterized in that: A power frame and an extended battery frame stacked with the power frame are arranged on one side of the protective grille frame away from the battery frame.

5. The vehicle chassis frame according to claim 3, characterized in that: Two lower thrust rods are symmetrically arranged on the transverse groove beam; and two upper thrust rods are symmetrically arranged on the top of the assembly grid frame.

6. The vehicle chassis frame according to claim 1, characterized in that: The battery rack includes a frame with an outer contour, wherein a bracket-type crossbeam is provided in the frame to separate and form the battery placement grooves, or a bracket-type crossbeam and a channel-type longitudinal beam are provided in the frame to separate and form the battery placement grooves, and a battery tray is provided on the bottom surface of the battery placement grooves separated in the frame; The wiring trough is arranged on the side of the frame facing the battery placement groove, and the inspection hole is arranged on the longitudinal beam of the frame; the wiring hole is arranged on the corbel type cross beam and the channel steel type longitudinal beam.

7. The vehicle chassis frame according to claim 6, characterized in that: A plurality of angle iron connectors are arranged on two opposite sides of the battery tray; and a hollow through hole is arranged on the bottom surface of the battery tray.

8. The vehicle chassis frame according to claim 6, characterized in that: A pipeline fixing plate is arranged on the top of the wiring trough.

9. The vehicle chassis frame according to claim 1, characterized in that: The front wheel frame is provided with a cab underframe, and a protective frame is provided at the front end of the cab underframe.

10. A bus, characterized in that: The invention comprises a vehicle chassis frame as claimed in any one of claims 1 to 9.

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