Battery replacement type electric frame transport vehicle

Abstract

The utility model relates to a battery-changing type electric frame transport vehicle which comprises a vehicle frame, a cab, a walking system, a power system and a control system, the power system comprises a plurality of battery pack units, each battery pack unit comprises a bracket and a battery pack, the bracket is connected to the bottom of the vehicle frame, the bottom of the bracket and surrounding baffles are arranged, and the upper portion of the bracket is open. A placing area for placing a battery pack is formed in the middle of the bracket, and a vehicle end electric plug-in and a guide assembly are arranged on the bracket; a battery end electric plug-in is arranged on the battery pack, and when the battery pack is placed in the placement area of the bracket through the guide assembly, the vehicle end electric plug-in and the battery end electric plug-in are electrically conducted; the control system comprises a battery replacing control unit which is used for controlling information interaction between the vehicle and the battery replacing station. According to the utility model, the total capacity of the battery pack of the heavy-load transport vehicle is improved by arranging the plurality of battery pack units, the battery replacement frequency is reduced, meanwhile, the battery replacement efficiency and the battery replacement safety are improved by matching with the bracket structure, the overall structure is simple, and the operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of transport devices, relates to engineering vehicles, and specifically relates to a battery-swap electric frame transport vehicle. Background Art

[0002] At present, heavy-duty electric transport vehicles mainly include two structural forms: charging and battery replacement. However, most of them are currently equipped with a small amount of power, especially the battery pack capacity of heavy-duty vehicles with battery replacement is even smaller. If the power is simply increased and the charging mode structure is adopted, a lot of charging time will be generated during vehicle operation, thereby reducing the vehicle's transportation efficiency. At present, frame transport vehicles are transport vehicles in the metallurgical industry. They work continuously and do not need to wait for loading and unloading. Charging will squeeze the vehicle's operating time. Summary of the invention

[0003] The utility model aims to provide a battery-changing electric frame transport vehicle.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A battery-swap electric frame transport vehicle comprises a frame, a cab, a travel system, a power system and a control system. The cab, the travel system and the power system are all connected to the bottom of the frame. The cab is located at one end of the frame.

[0006] The power system includes a plurality of battery pack units, and the battery pack units include a bracket and a battery pack. The bracket is connected to the bottom of the frame, and the bracket has a bottom and surrounding blocks, and an open top, and a placement area for placing the battery pack is formed in the middle. The bracket is provided with a vehicle-end electrical plug-in and a guide assembly; the battery pack is provided with a battery-end electrical plug-in, and when the battery pack is placed in the placement area of ​​the bracket through the guide assembly, the vehicle-end electrical plug-in and the battery-end electrical plug-in are electrically conductive;

[0007] The control system includes a battery swap control unit, which is used to control the information interaction between the vehicle and the battery swap station.

[0008] Preferably, in the above technical solution, the guide assembly includes a first guide assembly, the first guide assembly is arranged on opposite sides of the bracket enclosure, the first guide assembly includes first guide slopes arranged opposite to each other, and the first guide slopes extend obliquely from top to bottom toward the placement area of ​​the bracket.

[0009] Further preferably, the guide assembly also includes a second guide assembly, which is arranged below the first guide assembly, and the second guide assembly includes a second guide slope arranged relatively to each other, and the second guide slope extends obliquely from top to bottom toward the placement area of ​​the bracket, and the upper end of the second guide slope is located on the inner side of the first guide slope.

[0010] Preferably, in the above technical solution, the vehicle-end electrical plug-in is arranged at the bottom of the bracket placement area, and the battery-end electrical plug-in is arranged at the bottom of the battery pack.

[0011] Preferably, in the above technical solution, a placement opening which can be communicated with the bracket is provided on the frame, and the placement opening can be provided with a baffle.

[0012] Preferably, in the above technical solution, the battery replacement control unit includes a vehicle-side control unit, and the vehicle-side control unit includes:

[0013] Position sensing element: used to sense whether the vehicle is at the set battery replacement position;

[0014] Battery replacement request operation element: used to issue the battery replacement request;

[0015] The vehicle-side control module, the position sensing element and the battery replacement request operating element are connected to the vehicle-side control module, and are used to determine whether to replace the battery and keep the vehicle stopped during the battery replacement;

[0016] The battery swap control unit also includes a battery swap station end control module, which is used to be arranged in the battery swap station, and the battery swap station end control module is connected to the vehicle end control module.

[0017] Further preferably, the vehicle-side control module and the battery swap station-side control module are connected via signals.

[0018] Preferably, the above technical solution is characterized in that the traveling system comprises an active traveling system, and the active traveling system comprises a steering component, an active suspension, a drive axle and wheels, the steering component is connected to the bottom of the frame, the active suspension is connected to the steering component, the drive axle is connected to the active suspension, and the wheels are connected to the drive axle.

[0019] Further preferably, the cab comprises a front cab and a rear cab, the front cab is located at the front end of the frame, and the rear cab is located at the rear end of the frame; the steering component comprises a front steering component and a rear steering component, the front steering component is connected to the frame behind the front cab, and the rear steering component is connected to the frame in front of the rear cab.

[0020] Further preferably, the traveling system also includes a driven traveling system, which includes a driven suspension, a driven axle and wheels, the driven suspension is connected to the middle frame, the driven axle is connected to the driven suspension, the wheels are connected to the driven axle, and the battery pack unit is connected to the frame between the front steering component and the driven traveling system and to the frame between the rear steering component and the driven traveling system.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] The utility model increases the total capacity of the battery pack of the heavy-duty transport vehicle by providing multiple battery pack units, saving the number of battery replacements, and at the same time cooperates with the bracket structure to improve the battery replacement efficiency and safety. The overall structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attached Figure 1 It is a front view schematic diagram of the transport vehicle of this embodiment;

[0024] Attached Figure 2 is a schematic top view of the transport vehicle of this embodiment;

[0025] Attached Figure 3 Schematic diagram of the electrical structure of the battery pack unit in this embodiment;

[0026] Attached Figure 4 This is a schematic diagram of the connection between the vehicle-side electrical plug-in and the battery-side electrical plug-in in this embodiment;

[0027] Attached Figure 5 This is a schematic block diagram of the structure of the battery replacement control unit of this embodiment.

[0028] In the above attached figure:

[0029] 1. Frame;

[0030] 20. Front cab; 21. Rear cab;

[0031] 300, front steering component; 301, rear steering component; 302, active suspension; 303, drive axle; 304, wheel; 310, driven suspension; 311, driven axle; 312, wheel;

[0032] 4. Battery pack unit; 40. Bracket; 400. Vehicle-end electrical connector; 401. First guide slope; 402. Second guide slope; 41. Battery pack; 410. Battery-end electrical connector. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] like Figure 1-3 The battery-swap electric frame transport vehicle shown includes a frame 1, a cab, a travel system, a power system, and a control system. The following is a detailed introduction to each system:

[0036] The upper part of the vehicle frame 1 is used for transportation, and the lower part of the vehicle frame 1 is connected to various systems including a cab, a traveling system, a power system, etc.

[0037] The cab is connected to one end of the frame 1. In this embodiment, the cab includes a front cab 20 and a rear cab 21. The front cab 20 is located at the front end of the frame 1, and the rear cab 21 is located at the rear end of the frame 1. For the transport vehicle, the front cab 20 and the rear cab 21 can be used for driving respectively to avoid turning the vehicle.

[0038] The walking system includes an active walking system and a passive walking system. Among them:

[0039] The active travel system includes a steering component, an active suspension 302, a drive axle 303 and a wheel 301. The steering component is connected to the bottom of the frame 1, the active suspension 302 is connected to the steering component, the drive axle 303 is connected to the active suspension 302, and the wheel 304 is connected to the drive axle 301. In this embodiment: the steering component includes a front steering component 300 and a rear steering component 301. The front steering component 300 is connected to the frame 1 behind the front cab 20, and the rear steering component 301 is connected to the frame 1 in front of the rear cab 21. The front and rear steering components can be independently steered to meet the needs of different cab operations. The front steering component 300 and the rear steering component 301 are driven to steer by an oil cylinder. The internal suspensions can be connected by a steering rod or not by a connecting rod. Synchronization is achieved mechanically during steering; the front steering component 300 and the rear steering component 301 can be hydraulically synchronized by connecting the oil cylinders in series.

[0040] The traveling system also includes a driven traveling system, which includes a driven suspension 310, a driven bridge 311 and wheels 312. The driven suspension 210 is connected to the middle frame 1, the driven bridge 311 is connected to the driven suspension 310, and the wheels 312 are connected to the driven bridge 311. Multiple groups of driven traveling systems can be provided as needed, and one group is shown in the figure as an example.

[0041] The power system includes multiple battery pack units 4 to provide power for each drive of the vehicle. The battery pack units 4 can be set to two, three or more, and multiple battery pack units 4 need to be powered or replaced at the same time. In this embodiment: Take two battery pack units 4 as an example, the two battery pack units 4 are respectively connected to the frame 1 between the front steering component 300 and the driven walking system, and the frame 1 between the rear steering component 301 and the driven walking system. Specifically:

[0042] The battery pack unit 4 includes a bracket 40 and a battery pack 41, and the bracket 40 is connected to the bottom of the frame 1. Among them: the bracket 40 has a bottom and surroundings, and the top is open, and a placement area for placing the battery pack 41 is formed in the middle. In this embodiment: a vehicle-end electrical plug-in 400 is arranged on the bottom of the placement area of ​​the bracket 40, and a battery-end electrical plug-in 410 is arranged on the bottom of the battery pack 41, so that when the battery pack 41 is placed in the placement area of ​​the bracket 40, the vehicle-end electrical plug-in 400 and the battery-end electrical plug-in 410 can just complete the connection and realize electrical conduction. A placement port (not shown in the figure) that can be connected to the bracket 1 is opened on the frame 1, and the battery pack 4 can be placed in the bracket 40 through the placement port. When the battery pack 4 is not replaced, the placement port can be covered by a baffle without affecting transportation.

[0043] In order to ensure the accuracy of the connection between the vehicle-side electrical connector 400 and the battery-side electrical connector 410, a guide component is provided on the bracket 40, and the battery pack 41 can be placed and connected through the guide component. In this embodiment: the guide assembly includes a first guide assembly and a second guide assembly. The first guide assembly is arranged on opposite sides of the bracket 1 enclosure, such as the left and right sides in the figure. The first guide assembly includes a first guide slope 401 arranged relatively to each other. The first guide slope 401 extends obliquely from top to bottom toward the placement area of ​​the bracket 1, that is, guides toward the placement area; the second guide assembly is arranged below the first guide assembly. If the first guide assembly is arranged on the left and right sides of the bracket 1 enclosure, the second guide assembly is also arranged on the left and right sides of the bracket 1 enclosure. The second guide assembly includes a second guide slope 402 arranged relatively to each other. The second guide slope 402 extends obliquely from top to bottom toward the placement area of ​​the bracket 1, and the upper end of the second guide slope 402 is located on the inner side of the first guide slope 401. The battery pack 41 is preliminarily positioned by the first guide slope 401, and is then accurately positioned by the second guide slope 402 during the process of continuing to be placed downward, so that it is placed in place to ensure that the electrical plug-in at the bottom of the battery pack 41 is accurately plugged in.

[0044] The control system includes a battery swap control unit, which is used to control the information exchange between the vehicle and the battery swap station. In this embodiment: the battery swap control unit includes a vehicle-side control unit and a battery swap station-side control module. Specifically:

[0045] The vehicle-side control unit includes a position sensing element, a battery swap request operating element, and a vehicle-side control module. The position sensing element can be set on the vehicle, such as the frame 1 or the cab, to sense whether the vehicle is in the set battery swap position. The battery swap request operating element is set in the cab for the driver to operate, and is used to issue a battery swap request and keep the vehicle stopped when the battery is swapped. Correspondingly, a battery swap station-side control module needs to be set at the battery swap station to interact with the vehicle-side control module, and the vehicle-side control module and the battery swap station-side control module can be connected by signals.

[0046] The working principle of the battery swap control unit is:

[0047] When the vehicle is parked accurately (parked at the designated battery swapping position), the position sensing element senses the actual position of the vehicle and sends it to the vehicle-side control module. If the vehicle-side control module determines that the position is accurate, the battery swapping request operation is allowed. The battery swapping request operation element is pressed, and the vehicle-side control module sends the battery swapping request signal to the battery swapping station-side control module. After the vehicle-side control module sends the request signal, the vehicle-side control module will restrict the vehicle's movement operations, including the invalidation of vehicle driving, lifting and other operating functions; if the position sensing element senses that the actual position of the vehicle is not at the designated battery swapping position, the battery swapping request operation element is pressed, and the vehicle-side control module will not send a request signal and will give a prompt.

[0048] After the battery swap station control module receives the vehicle's battery swap request signal, the battery swap station control module issues a battery swap operation instruction, and the staff can start the battery swap operation; after the battery swap operation is completed, the battery swap station control module sends a battery swap completion signal to the vehicle control module, and the vehicle control module can display the completion of the battery swap through the on-board display or indicator light. At this time, the vehicle control module will contact the restricted vehicle action operations, and can operate the vehicle's driving, lifting and other actions.

[0049] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery-swap electric frame transport vehicle, comprising a frame, a cab, a travel system, a power system and a control system, wherein the cab, the travel system and the power system are all connected to the bottom of the frame, and the cab is located at one end of the frame, characterized in that: The power system includes a plurality of battery pack units, and the battery pack units include a bracket and a battery pack. The bracket is connected to the bottom of the frame, and the bracket has a bottom and surrounding blocks, and an open top, and a placement area for placing the battery pack is formed in the middle. The bracket is provided with a vehicle-end electrical plug-in and a guide assembly; the battery pack is provided with a battery-end electrical plug-in, and when the battery pack is placed in the placement area of ​​the bracket through the guide assembly, the vehicle-end electrical plug-in and the battery-end electrical plug-in are electrically conductive; The control system includes a battery swap control unit, which is used to control the information interaction between the vehicle and the battery swap station.

2. The battery-swap electric frame transport vehicle according to claim 1, characterized in that: The guide assembly includes a first guide assembly, which is arranged on opposite sides of the bracket enclosure. The first guide assembly includes first guide slopes arranged opposite to each other, and the first guide slopes extend obliquely from top to bottom toward the placement area of ​​the bracket.

3. The battery-swap electric frame transport vehicle according to claim 2, characterized in that: The guide assembly also includes a second guide assembly, which is arranged below the first guide assembly. The second guide assembly includes a second guide slope arranged relatively to each other, and the second guide slope extends obliquely from top to bottom toward the placement area of ​​the bracket, and the upper end of the second guide slope is located on the inner side of the first guide slope.

4. The battery-swap electric frame transport vehicle according to claim 1, characterized in that: The vehicle-end electrical plug-in is arranged at the bottom of the bracket placement area, and the battery-end electrical plug-in is arranged at the bottom of the battery pack.

5. The battery-swap electric frame transport vehicle according to claim 1, characterized in that: The frame is provided with a placement opening which can be communicated with the bracket, and the placement opening can be provided with a baffle.

6. The battery-swap electric frame transport vehicle according to claim 1, characterized in that: The battery replacement control unit includes a vehicle-side control unit, and the vehicle-side control unit includes: Position sensing element: used to sense whether the vehicle is at the set battery replacement position; Battery replacement request operation element: used to issue the battery replacement request; The vehicle-side control module, the position sensing element and the battery replacement request operating element are connected to the vehicle-side control module, and are used to determine whether to provide battery replacement and keep the vehicle stopped when providing battery replacement; The battery swap control unit also includes a battery swap station end control module, which is used to be arranged in the battery swap station, and the battery swap station end control module is connected to the vehicle end control module.

7. The battery-swap electric frame transport vehicle according to claim 6, characterized in that: The vehicle-side control module and the battery swap station-side control module are connected via signals.

8. The battery-swap electric frame transport vehicle according to claim 1, characterized in that: The walking system includes an active walking system, which includes a steering component, an active suspension, a drive axle and wheels. The steering component is connected to the bottom of the frame, the active suspension is connected to the steering component, the drive axle is connected to the active suspension, and the wheels are connected to the drive axle.

9. The battery-swap electric frame transport vehicle according to claim 8, characterized in that: The cab comprises a front cab and a rear cab, the front cab is located at the front end of the frame, and the rear cab is located at the rear end of the frame; the steering component comprises a front steering component and a rear steering component, the front steering component is connected to the frame behind the front cab, and the rear steering component is connected to the frame in front of the rear cab.

10. The battery-swap electric frame transport vehicle according to claim 9, characterized in that: The traveling system also includes a driven traveling system, which includes a driven suspension, a driven axle and wheels. The driven suspension is connected to the middle frame, the driven axle is connected to the driven suspension, the wheels are connected to the driven axle, and the battery pack unit is connected to the frame between the front steering component and the driven traveling system and to the frame between the rear steering component and the driven traveling system.

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