Heavy truck tractor power battery mounting and fixing device and heavy truck tractor

Abstract

The utility model provides a heavy truck tractor power battery mounting and fixing device and a heavy truck tractor provided with the same. The heavy truck tractor power battery mounting and fixing device comprises an upper battery rack, a lower battery rack and a fixing seat, the upper battery rack is detachably mounted on the lower battery rack, an upper-layer accommodating space for bearing a battery is formed on the upper battery rack, and a lower-layer accommodating space for bearing the battery is formed on the lower battery rack; the lower section of the fixing seat is mounted on the upper battery rack, and the upper section of the fixing seat is used for being fixed on a girder of a vehicle. According to the power battery mounting and fixing device for the heavy truck tractor, the structure is compact, the number of vehicle-mounted batteries is flexibly expanded, the endurance mileage is increased, meanwhile, the manufacturing cost is reduced, and the dismounting process is simplified by optimizing the structure and the mounting mode of the battery hanger.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery rack technical field, concretely relates to a heavy truck tractor power battery mounting and fixing device and heavy truck tractor installed with the fixing device. BACKGROUND

[0002] The existing electric heavy truck tractor generally faces the problem of insufficient endurance mileage, one of the core reasons is that the installation space of the vehicle-mounted power battery is limited, and the traditional installation mode has the defects of inconvenient disassembly, high manufacturing cost and the like. For example, part of the prior art adopts the built-in battery support, which occupies a larger space in the vehicle, and it is difficult to expand the number of batteries, and although some other schemes support battery replacement, the structure is complex, the installation efficiency is low, and the promotion cost is high. Therefore, a power battery mounting and fixing device capable of fully utilizing the space, convenient to disassemble and low in cost is urgently needed. SUMMARY

[0003] In view of the above, the utility model aims at providing a heavy truck tractor power battery mounting and fixing device, which optimizes the battery hanger structure and installation mode, realizes compact structure, flexible expansion of the number of vehicle-mounted batteries, improves endurance mileage, and reduces manufacturing cost and simplifies disassembly process.

[0004] The technical scheme of the utility model:

[0005] The utility model provides a heavy truck tractor power battery mounting and fixing device, including upper battery rack, lower battery rack and fixed seat, the upper battery rack is detachably installed on the lower battery rack, the upper battery rack forms the upper layer containing space for bearing the battery, the lower battery rack forms the lower layer containing space for bearing the battery, the fixed seat lower section is installed on the upper battery rack, and the fixed seat upper section is used for fixing to the beam of the vehicle.

[0006] According to one embodiment of the utility model, the height of the upper battery rack is less than the height of the battery, so that the top of the battery is contained between the two beams of the vehicle.

[0007] According to one embodiment of the utility model, the upper battery rack and the lower battery rack are detachably connected through bolts or bolts.

[0008] According to one embodiment of the utility model, the upper battery rack includes upper layer side frame and upper layer crossbeam, the upper layer side frame is enclosed and forms the cuboid space matched with the appearance and size of the battery, and the upper layer crossbeam is connected to the bottom of the upper layer side frame to support the battery.

[0009] According to one embodiment of the utility model, the upper layer side frame is welded by square steel pipe, the upper layer crossbeam is welded on the bottom of the upper layer side frame by angle iron, mounting holes are formed on the angle iron for screwing fasteners to be fixed in the screw holes on the bottom of the battery.

[0010] According to one embodiment of the utility model, the lower battery holder comprises a lower layer side frame and a lower layer crossbeam; the lower layer side frame forms a cuboid space matching the shape and size of the battery; and the lower layer crossbeam is connected to the bottom of the lower layer side frame to support the battery.

[0011] According to one embodiment of the utility model, the lower layer side frame is welded by square steel pipe, the lower layer crossbeam is welded on the bottom of the lower layer side frame by angle iron, mounting holes are formed on the angle iron for screwing fasteners to be fixed in the screw holes on the bottom of the battery.

[0012] According to one embodiment of the utility model, a protection plate is welded on the lower layer crossbeam.

[0013] According to one embodiment of the utility model, the lower section of the fixing seat is provided with a welding hole for welding with the upper layer side frame and a through hole for screwing, and the upper section of the fixing seat is provided with a fixing hole for fixing the girder of the vehicle.

[0014] The utility model also provides a heavy truck tractor, which comprises a girder and the heavy truck tractor power battery mounting and fixing device of the above-mentioned embodiment, and the fixing seat is fixed on the girder.

[0015] The heavy truck tractor power battery mounting and fixing device provided by the utility model has the following remarkable beneficial effects:

[0016] From the convenience of battery installation and maintenance, the upper battery holder is detachably mounted on the lower battery holder, which greatly facilitates the installation, disassembly and maintenance of the battery.

[0017] In terms of battery carrying capacity, the upper layer containing space formed by the upper battery holder and the lower layer containing space formed by the lower battery holder realize layered carrying of the battery.

[0018] In terms of the fixed connection stability of the device, the bottom end of the fixing seat is mounted on the upper battery rack, and the top end is used for being fixed to the frame of the vehicle. This connection mode stably connects the power battery mounting and fixing device to the frame of the vehicle, so that the whole device can bear the external force such as vibration and bumping generated in the driving process of the vehicle, ensures that the battery remains stable in the driving process of the vehicle, avoids damage to the battery due to shaking and collision, improves the reliability and safety of the battery mounting, and prolongs the service life of the battery. At the same time, this fixing mode reasonably transmits the weight of the battery to the frame of the vehicle, optimizes the load distribution of the vehicle, and enhances the stability and safety of the driving of the vehicle.

[0019] The preferred embodiments of the utility model and the beneficial effects thereof will be further described in detail in combination with the specific implementation modes. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the utility model and constitute a part of the specification, and are used to explain the utility model together with the following specific implementation mode, but should not constitute the limitation of the utility model. In the drawings:

[0021] Figure 1 is an exploded view of the heavy truck tractor power battery mounting and fixing device of the utility model;

[0022] Figure 2 is a use state reference drawing of the heavy truck tractor power battery mounting and fixing device of the utility model mounted on the frame;

[0023] Figure 3 is Figure 2 the front view;

[0024] Figure 4 is Figure 3 the right view;

[0025] Figure 5 is the structure drawing of the fixing seat of the heavy truck tractor power battery mounting and fixing device of the utility model.

[0026] Explanation of the drawing reference numerals: upper battery rack 1, lower battery rack 2, fixing seat 3, battery 4, frame 5, bolt 6, upper layer side frame 11, upper layer cross beam 12, lower layer side frame 21, protection plate 23, welding hole 31, through hole 32, fixing hole 33. DETAILED DESCRIPTION

[0027] The specific implementation mode of the utility model will be described in detail in combination with the drawings. It should be understood that the specific implementation mode described here is only used for explaining and interpreting the utility model, and is not used for limiting the utility model.

[0028] Please refer to Figures 1 to 4The utility model provides a kind of heavy truck tractor power battery installation fixing device, including upper battery rack 1, lower battery rack 2 and fixed seat 3.Upper battery rack 1 is detachably installed on lower battery rack 2.Upper battery rack 1 is formed with the upper layer containing space for carrying battery 4.Lower battery rack 2 is formed with the lower layer containing space for carrying battery 4.Fixed seat 3 lower section is installed on upper battery rack 1, and fixed seat 3 upper section is used to be fixed to the beam 5 of car.

[0029] The utility model provides a kind of heavy truck tractor power battery installation fixing device, with following aspects remarkable beneficial effects:

[0030] From the convenience of battery installation and maintenance, upper battery rack 1 is detachably installed on lower battery rack 2, which greatly facilitates the installation, disassembly and maintenance of battery 4.When battery 4 needs to be overhauled, replaced or maintained, only upper battery rack 1 needs to be detached from lower battery rack 2, and battery 4 in the upper layer containing space can be directly operated without complex disassembly of the entire installation fixing device, which greatly reduces the maintenance difficulty, improves the maintenance efficiency, saves maintenance time and cost.

[0031] In terms of battery carrying capacity, the upper layer containing space formed by upper battery rack 1 and the lower layer containing space formed by lower battery rack 2 realize the layered carrying of battery 4.This layered design can carry more batteries 4 in limited space, effectively increasing the number of installed batteries 4, thereby providing more sufficient power supply for vehicles, improving the endurance mileage and power performance of vehicles, and meeting the demand of heavy truck tractor for large-capacity battery 4.

[0032] In terms of the stability of fixed connection of the device, the bottom end of fixed seat 3 is installed on upper battery rack 1, and the top end is used to be fixed to the beam 5 of car.This connection mode stably connects the power battery installation fixing device to the beam 5 of vehicle, so that the entire device can withstand external forces such as vibration and jolt during vehicle driving, ensuring that battery 4 remains stable during vehicle operation, avoiding damage to battery 4 due to shaking and collision, improving the reliability and safety of battery 4 installation, and prolonging the service life of battery 4.Meanwhile, this fixing mode reasonably transfers the weight of battery 4 to the beam 5 of car, optimizes the load distribution of vehicle, and enhances the stability and safety of vehicle driving.

[0033] In this embodiment, the height of the upper battery holder 1 is less than the height of the battery 4, so that the top of the battery 4 is accommodated between the two beams 5 of the vehicle. In terms of space layout and structural adaptability, the height of the upper battery holder 1 is less than the height of the battery 4, so that the top of the battery 4 is accommodated between the two beams 5 of the vehicle. This design makes full use of the top space between the vehicle beams 5, realizes the high-position compact installation of the battery 4 without increasing the overall height of the vehicle. At the same time, the top of the battery 4 is clamped and protected by the two beams 5, forming a natural mechanical protection structure, which can effectively resist collision impact from above (such as scratching by low obstacles, impact by road splashes, etc.), further improving the safety of the battery 4 under complex working conditions. In addition, this layout makes the top of the battery 4 closely fit the bottom surface of the beam 5, reduces the deformation displacement of the top of the battery 4 through the rigid support of the beam 5, and cooperates with the longitudinal connection of the fixing seat 3 to form a bidirectional constraint and fixation, which significantly enhances the fatigue resistance of the battery 4 in the high-frequency vibration environment of the vehicle.

[0034] The battery 4 in the upper battery holder 1 can be the same or different in specification from the battery 4 in the lower battery holder 2. In this embodiment, the length of the battery 4 in the upper battery holder 1 is less than the length of the upper battery holder 1, so as to leave space for installing the controller.

[0035] In this embodiment, the upper battery holder 1 and the lower battery holder 2 are detachably connected by bolts 6. In addition, the upper battery holder 1 and the lower battery holder 2 can also be detachably connected by a latch.

[0036] In this embodiment, the upper battery holder 1 includes an upper layer side frame 11 and an upper layer cross beam 12. The upper layer side frame 11 forms a rectangular cuboid space adapted to the shape and size of the battery 4. The upper layer cross beam 12 is connected to the bottom of the upper layer side frame 11 to support the battery 4.

[0037] The upper layer side frame 11 is welded by 50mm square steel pipes. The upper layer cross beam 12 is welded to the bottom of the upper layer side frame 11 by angle iron. The angle iron has mounting holes for screw fasteners to be fixed in the screw holes on the bottom of the battery 4.

[0038] The upper layer side frame 11 forms a rectangular cuboid space adapted to the shape and size of the battery, realizes precise positioning of the battery through customized structural design, avoids the battery from shaking or shifting in the frame, cooperates with the support of the upper layer cross beam to form a three-dimensional fixed structure, significantly improves the stability of the battery installation, and effectively resists bumps and vibrations during vehicle driving.

[0039] The upper layer side frame 11 is welded by 50mm square steel pipes, which have excellent bending strength and torsional stiffness, and reduce the weight by 30%-50% compared with traditional solid steel materials while ensuring structural strength, meet the lightweight design requirements of new energy vehicles, and can reduce the energy consumption of the whole vehicle and improve the endurance performance.

[0040] The upper layer cross beam 12 is welded with angle iron at the bottom of the side frame, the angle iron has low material cost and is easy to process, the mounting hole is provided on the angle iron and corresponds to the screw hole at the bottom of the battery one by one, the battery can be quickly fixed on the cross beam through screw fasteners (such as bolts), and the installation can be completed without complex tooling, which significantly improves the assembly efficiency and reduces the labor cost.

[0041] The upper layer side frame 11 and the upper layer cross beam 12 are assembled by welding process, the structure form is simple and unified, the square steel pipe and the angle iron assembly can be mass produced by standardized mold, the assembly interchangeability is strong, which is suitable for large-scale industrialized manufacturing, and it is convenient to quickly replace the damaged parts during later maintenance, thereby reducing the maintenance cost.

[0042] The open frame structure (non-fully closed design) of the cuboid space is convenient for the operator to observe the battery state from the side or to perform wiring, detection and other operations, and the exposed design of the angle iron mounting hole also makes the bolt disassembly unnecessary to use additional tools or disassemble other parts, thereby further improving the maintenance convenience.

[0043] In the embodiment, the lower battery rack 2 includes a lower layer side frame 21 and a lower layer cross beam. The lower layer side frame 21 encloses a cuboid space which is adapted to the shape and size of the battery 4. The lower layer cross beam is connected to the bottom of the lower layer side frame 21 to support the battery 4.

[0044] The lower layer side frame 21 is welded with a 50mm square steel pipe. The lower layer cross beam is welded with angle iron at the bottom of the lower layer side frame 21. The angle iron is provided with a mounting hole for penetrating a screw fastener to be fixed in the screw hole at the bottom of the battery 4.

[0045] The lower layer cross beam is welded with a protection plate 23, which can be made of 5mm thick carbon steel plate to avoid the pollution of the muddy road surface to the bottom of the battery.

[0046] It can be understood that the lower battery rack 2 can be detachably installed with multiple lower layer containing spaces to install multiple batteries 4.

[0047] In the embodiment, please refer to Figure 1 and Figure 5The lower section of the fixed seat 3 is provided with a welding hole 31 and a through hole 32 for screwing, which are used for welding with the upper layer side frame 11. The upper section of the fixed seat 3 is provided with a fixed hole 33 for fixing with the main beam 5 of the vehicle. The combination of the welding hole 31 and the through hole 32 forms a "welding-screw double connection" structure, which can realize rigid fixing through welding to bear the main load, and provide pre-tightening force through bolt connection, thereby significantly enhancing the connection strength between the fixed seat 3 and the upper battery rack 1, and being especially suitable for the complex working conditions of high-frequency vibration of the heavy truck tractor, and reducing the connection failure risk caused by long-term vibration. The standardized design of the upper section fixed hole 33 facilitates quick docking with the preset mounting structure on the main beam 5, and the vertical force transmission path of the fixed seat 3 uniformly transmits the weight of the battery 4 and the dynamic load in the driving process to the main load-bearing structure of the main beam 5, thereby further optimizing the stress distribution of the whole vehicle and improving the structural reliability and service life of the device.

[0048] The utility model also provides a kind of heavy truck tractor, including main beam 5 and the heavy truck tractor power battery installation fixed device of above-mentioned.

[0049] In the description of the utility model, it should be explained that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying importance; the words "bottom surface" and "top surface", "inner" and "outer" respectively refer to the direction towards or away from a particular component geometry.

[0050] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "communication", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly communicated, or it can be indirectly communicated through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0051] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A heavy truck tractor power battery mounting and fixing device, characterized in that, The application relates to a heavy truck tractor power battery mounting and fixing device which comprises an upper battery rack (1), a lower battery rack (2) and a fixing base (3), wherein the upper battery rack (1) is detachably mounted on the lower battery rack (2), the upper battery rack (1) is formed with an upper layer containing space for containing batteries (4), the lower battery rack (2) is formed with a lower layer containing space for containing batteries (4), the lower section of the fixing base (3) is mounted on the upper battery rack (1), and the upper section of the fixing base (3) is used for being fixed to the main beam (5) of a vehicle.

2. The heavy truck tractor power battery mounting and fixing device according to claim 1, characterized in that, The height of the upper battery rack (1) is smaller than the height of the batteries (4), so that the top of the batteries (4) is contained between the two main beams (5) of the vehicle.

3. The heavy truck tractor power battery mounting and fixing device according to claim 1, characterized in that, The upper battery rack (1) and the lower battery rack (2) are detachably connected through bolts (6) or latches.

4. The heavy truck tractor power battery mounting and fixing device according to claim 1, characterized in that, The upper battery rack (1) comprises upper layer side edge frames (11) and an upper layer cross beam (12), the upper layer side edge frames (11) are formed into a cuboid space matched with the shape and size of the batteries (4), and the upper layer cross beam (12) is connected to the bottom of the upper layer side edge frames (11) to support the batteries (4).

5. The heavy truck tractor power battery mounting and fixing device according to claim 4, characterized in that, The upper layer side edge frames (11) are welded by square steel tubes, the upper layer cross beam (12) is welded to the bottom of the upper layer side edge frames (11) by angle iron, and mounting holes are formed in the angle iron to pass through screw fasteners and be fixed into screw holes in the bottom of the batteries (4).

6. The heavy duty truck tractor power battery mounting and securing device of claim 1, wherein, The lower battery rack (2) comprises lower layer side edge frames (21) and a lower layer cross beam, the lower layer side edge frames (21) are formed into a cuboid space matched with the shape and size of the batteries (4), and the lower layer cross beam is connected to the bottom of the lower layer side edge frames (21) to support the batteries (4).

7. The heavy truck tractor power battery mounting and fixing device according to claim 6, characterized in that, The lower layer side edge frames (21) are welded by square steel tubes, the lower layer cross beam is welded to the bottom of the lower layer side edge frames (21) by angle iron, and mounting holes are formed in the angle iron to pass through screw fasteners and be fixed into screw holes in the bottom of the batteries (4).

8. The heavy truck tractor power battery mounting and fixing device according to claim 6, characterized in that, The lower layer cross beam is welded with a protection plate (23).

9. The heavy truck tractor power battery mounting and fixing device according to claim 4, characterized in that, The lower section of the fixing base (3) is provided with welding holes (31) for welding with the upper layer side edge frames (11) and through holes (32) for screwing, and the upper section of the fixing base (3) is provided with fixing holes (33) for being fixedly mounted on the main beam (5) of a vehicle.

10. A heavy truck tractor comprising a frame (5), characterized in that The application further relates to the heavy truck tractor power battery mounting and fixing device as claimed in any one of claims 1-9, and the fixing base (3) is fixed on the main beam (5).

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