Movable energy complementing flat car device for battery replacement battery pack of heavy truck

Abstract

The utility model provides a mobile energy complementing flat car device for a battery pack of a heavy truck. The mobile energy complementing flat car device comprises a mobile flat car, a concentrated direct current charging seat, a battery pack assembly, a charging and discharging connector and a vehicle-mounted charging pile, the movable flat car is mounted on one side of the driving car; the centralized direct-current charging seats are respectively arranged at the front end and the tail end of the upper surface of the mobile flat car, and are independently and electrically connected with the charging and discharging connector; a plurality of groups of charging and discharging connectors are arranged, are electrically connected with the battery pack assembly and are used for being connected with a charging port of a battery pack; the vehicle-mounted charging pile is fixedly installed on the movable flat car, one end of the vehicle-mounted charging pile is electrically connected with the battery pack assembly, and the other end of the vehicle-mounted charging pile is connected with an external charging device. The mobile flat car has the advantages of being reasonable in design, complete in function, easy to produce, convenient and fast to operate, capable of achieving mobile nearby battery replacement, convenient in battery energy supplement circulation and high in efficiency, and therefore a lot of convenience is provided for users.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy heavy trucks, and in particular relates to a mobile energy replenishment flatbed vehicle device for replacing battery packs of heavy trucks. Background Art

[0002] With national support for new energy vehicles and stricter restrictions on fuel-powered vehicles, the number of new energy vehicles on the road is increasing, with electric vehicles currently the primary force. Current challenges in promoting electric vehicles include: 1) short driving range; 2) long charging times, typically requiring 6-8 hours for slow charging and half an hour for fast charging, which can negatively impact battery life; 3) high battery costs; and 4) the need for specialized charging equipment and charging, making it difficult to readily recharge electric heavy-duty trucks. With the increasing popularity of electric trucks, battery swapping technology has emerged to address the long charging and recharging times. Consequently, the recharging needs of electric vehicles are typically met by replacing the battery pack with a fully charged one.

[0003] Currently, the mainstream battery swapping solution for electric heavy-duty trucks uses a fully charged battery pack that is swapped at a fixed swapping station to replace the battery pack to be replaced. This involves heavy-duty truck drivers driving their trucks to a designated location, parking, and swapping batteries at a fixed swapping station. Fixed swapping stations require specialized equipment and facilities, making them convenient for closed environments but difficult to find on major roads. Electric vehicles, on the other hand, can only be operated at dedicated swapping stations, where battery packs can be swapped using specialized equipment. Consequently, when a battery pack needs to be swapped, drivers worry about the remaining charge. These swapping stations may not cover the operating area, and vehicle routes must be strict to ensure the remaining charge is sufficient to reach the next swapping station, leading to range anxiety. Furthermore, swapping stations are expensive to build, require a long cycle, and are not adaptable to the ever-changing operating conditions of heavy-duty trucks. Heavy-duty trucks operate in a mobile environment, making it difficult to swap battery packs at any time and anywhere, a problem that urgently needs to be addressed. Therefore, to improve the efficiency of battery swapping for new energy heavy-duty trucks and mitigate range concerns caused by locational limitations, further research is needed to develop a more suitable battery swapping solution for new energy heavy-duty trucks. Summary of the Invention

[0004] Technical solution: In order to solve the above-mentioned technical problems, the utility model provides a mobile energy replenishment flatbed device for heavy-duty truck battery replacement, which specifically includes: a mobile flatbed, a centralized DC charging seat, a battery pack assembly, a charge and discharge connector, and an on-board charging pile; the mobile flatbed is connected to the tractor head through a standard saddle and is installed on one side of the driving vehicle; the centralized DC charging seat is installed at the front end and the end of the upper surface of the mobile flatbed, and both are independently electrically connected to the charge and discharge connector; the charge and discharge connector is provided in multiple groups, which are electrically connected to the battery pack assembly and used to be connected to the charging port of the battery pack; the on-board charging pile is fixedly installed on the mobile flatbed, one end of which is electrically connected to the battery pack assembly, and the other end is connected to an external charging device.

[0005] As an improvement, it also includes a bracket assembly, which is fixedly mounted on the upper surface of the mobile flatbed truck and is used to provide support for fixing and electrically connecting the components installed on the mobile flatbed truck.

[0006] As an improvement, the battery pack assembly includes a battery pack, an upper frame, and a bottom bracket; the bottom bracket is fixedly installed inside the bracket assembly and is used to fix the bottom of the battery pack; the upper frame is fixedly installed on the top of the battery pack and is used for lifting or moving the battery pack; one battery pack corresponds to one bottom bracket and one upper frame, and the battery pack assembly is installed with 8 groups.

[0007] As an improvement, it also includes a battery swap controller, which is installed on the bracket assembly. The battery swap controller is responsible for the locking and unlocking functions of the battery pack assembly.

[0008] As an improvement, it also includes a charging and discharging smart cabinet, which includes PCS equipment and a low-voltage control cabinet; the low-voltage control cabinet is installed inside the charging and discharging smart cabinet; the PCS equipment is a structure that uses two energy replenishment charging methods, namely AC power and wind and solar energy storage, to charge the on-board battery pack. When charging with AC power, one PCS device is directly electrically connected to multiple charging guns.

[0009] As an improvement, it also includes charging ports, which are arranged in 8 groups and independently installed on the side of the battery pack.

[0010] As an improvement, the on-board charging pile has a structure that allows the charging and discharging smart cabinet to discharge the external battery pack through the on-board battery pack for V2V energy replenishment.

[0011] Beneficial effects: The mobile flatbed device for replacing heavy truck battery packs proposed in the utility model has a reasonable design, complete functions, easy production, and convenient operation. It can realize mobile battery replacement nearby, and the battery charging cycle is convenient and efficient, thereby providing users with many convenient features. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is the charging and discharging network topology diagram of the PCS device of the present invention.

[0014] Figure 3 This is a schematic diagram of existing conventional and mature energy replenishment equipment.

[0015] Figure 4 Schematic diagram of the bracket assembly of the present invention.

[0016] Figure 5 This is a schematic diagram of the installation position of the low-voltage control cabinet of the utility model.

[0017] In the figure: 1 bracket assembly, 2 mobile flatbed truck, 3 centralized DC charging station, 4 battery pack assembly, 5 charging and discharging connector, 6 on-board charging pile, 7 charging and discharging smart cabinet, 8 battery replacement controller, 9 low-voltage control cabinet. DETAILED DESCRIPTION

[0018] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] The present invention provides a mobile energy-replenishing flatbed device for battery-exchange battery packs of heavy trucks, wherein the battery-exchange controller is of model yc-excu56v4, and the low-voltage control cabinet is of model NX10-8060 / 20, but is not limited to this model. Any existing battery-exchange controller and low-voltage control cabinet that can achieve the same functions as in the present invention fall within the scope of protection of the present invention.

[0020] The mobile charging flatbed device for heavy-duty truck battery replacement includes a mobile flatbed 2, a battery pack assembly 4, a centralized DC charging seat 3, a charging and discharging connector 5, an on-board charging pile 6, a charging and discharging intelligent cabinet 7, and a battery replacement controller 8; two centralized DC charging seats 4 are provided at the front and rear ends of the mobile flatbed 2, which can use external charging piles to charge and recharge the battery pack; the battery pack can also be recharged through the two-way PCS system using wind, solar power storage, direct energy replenishment by box substation, DC charging gun plug-in energy replenishment and battery replacement station centralized charging.

[0021] The mobile flatbed truck 2 is equipped with multiple battery pack assemblies 4, each comprising a battery pack, an upper frame, and a bottom bracket. The battery packs are flexibly recharged via PCS equipment using wind and solar power storage, direct charging via a box-type transformer, plug-in charging via a DC charging plug, and centralized charging at a battery swap station. The PCS equipment, managed online by the EMS, enables charging and recharging of the battery packs, as well as providing 380V AC power to external devices or loads.

[0022] A PCS device is directly electrically connected to multiple charging guns. In this utility model, the PCS reverse discharges the battery pack and is equipped with an on-board fast charging system, which can support up to 16 charging guns for external direct charging and replenishment, that is, DC fast charging function.

[0023] Furthermore, the vehicle charging station 6 allows the vehicle battery pack to discharge externally (V2V) through the charging and discharging smart cabinet 7. This provides high-power distribution services for scenarios without power facilities, such as outdoor photography, infrastructure construction, and new energy emergency charging, i.e., AC fast discharge function.

[0024] The mobile flatbed of the device has a reasonable design, complete functions, easy production, and convenient operation. It integrates multiple functions and realizes mobile energy replenishment, convenience, and high efficiency, thereby providing users with many convenient features. The technical content of the utility model is further introduced in conjunction with the accompanying drawings.

[0025] See Figure 1 The figure shows an embodiment of the mobile energy replenishment flatbed device for replacing battery packs of heavy trucks of the present invention. The battery replacement function is eight groups of battery pack assemblies, and the corresponding upper frame + bracket assembly on each battery pack. The eight groups of upper frames can be used as battery replacement packs. When the empty battery pack is replaced, charging is used for replenishment.

[0026] Each of the eight battery packs has a separate charging port on its frame, allowing them to be charged individually near a charging station or all eight packs to be charged together on the flatbed, providing flexible and versatile charging options. The mobile flatbed 2 is towed by a tractor, with fully charged batteries stored on a trailer. This is primarily intended for battery swapping in areas without phase change resources along national roads.

[0027] As a specific embodiment of the present invention, it has a battery replacement function, specifically: the compartment of the mobile flatbed truck is used to place a fully charged battery pack for the entire battery replacement of the heavy-duty truck battery pack. Preferably, 8 groups of fully charged battery packs are installed on the flatbed truck, transported to the location of the vehicle to be replaced, and the heavy-duty truck battery replacement battery pack is provided for battery replacement. The heavy-duty truck that can replace the battery does not need to enter a dedicated battery replacement site, and can replace the battery box and replenish energy anytime and anywhere, thereby improving the efficiency of battery replacement.

[0028] As a specific embodiment of the present invention, it has a two-way energy replenishment function, specifically: the empty battery pack is placed in the compartment of the mobile flatbed truck, and at least one group of the empty battery packs can be electrically connected to the charging socket of the mobile flatbed truck for replenishment. Preferably, after replacing 8 groups of empty battery packs and loading them onto the flatbed truck, the reverse energy replenishment point is operated, and then a new round of battery replacement is carried out. The device optimizes the entire battery replacement, and by providing a charging port on the bottom plate of the trailer for replenishment, the battery pack can also be replenished separately, or it can be replenished through the charging port of the trailer.

[0029] As a specific embodiment of the present invention, it has the function of energy replenishment of light and wind network, specifically: the charging equipment includes light storage AC energy replenishment equipment, wind storage AC energy replenishment equipment, box transformer AC energy replenishment equipment, charging gun plug-in energy replenishment equipment and battery swap station integrated charging and energy replenishment equipment. The above-mentioned light storage AC energy replenishment equipment, wind storage AC energy replenishment equipment, box transformer AC energy replenishment equipment, charging gun plug-in energy replenishment equipment and battery swap station integrated charging and energy replenishment equipment are all conventional and mature energy replenishment equipment in the prior art and are well known to those skilled in the art. As long as they can realize the energy replenishment function of the present invention, please refer to Figure 3 As shown in the figure.

[0030] As a specific embodiment of the present invention, it has an energy storage cabinet discharge function, specifically: a fully charged battery pack is placed in the compartment of the mobile flatbed truck, which is used to serve as an energy storage cabinet to provide charging and energy replenishment for the battery pack, or a discharge function device for reversely discharging the battery pack and moving it to other areas for use by external equipment or loads.

[0031] Preferably, the fully charged battery pack is placed on a flatbed truck, which can also be used as an energy storage cabinet. The mobile flatbed truck can realize V2G charging and discharging functions, that is, photovoltaic power and box-type transformer mains power are managed online through the PCS equipment and EMS to realize charging and energy replenishment (DC) of the on-board battery pack. At the same time, the battery pack can be reverse discharged (providing AC 380V and AC 220V) and moved to other areas for use by external devices or loads, providing 380V and 220V power to areas without electricity.

[0032] As a specific embodiment of the present invention, it has the function of replenishing energy for the vehicle, specifically: it also includes a charger, which is a 240kw structure installed on a mobile flatbed truck; the battery pack placed on the compartment of the mobile flatbed truck is electrically connected to the PCS equipment and the charger, and is used to replenish the DC fast charging of the mobile flatbed truck.

[0033] Preferably, the battery pack on the mobile flatbed can be used to reverse discharge and recharge the onboard battery pack through PCS, and the 240kw charger on board can realize the V2V DC fast charging function for other vehicles, completing the vehicle-to-vehicle DC charging and recharging function.

[0034] See Figure 2 As shown, it also includes an industrial computer, a display screen, a DC junction box, and an energy storage battery high-voltage box; wherein the PCS device is a bidirectional PCS structure, one path is electrically connected to one end of the industrial computer, and the other port of the industrial computer is electrically connected to one end of the display screen; the other path is electrically connected to one end of the DC junction box, and the other end of the DC junction box is independently electrically connected to one end of the energy storage battery high-voltage box and the third port of the industrial computer, and the other end of the energy storage battery high-voltage box is electrically connected to the DC junction box.

[0035] Working Principle: First, the empty battery pack is fully charged at a power plant, photovoltaic power station, or a charging station. The fully charged battery pack is then sent to a phase-free battery swapping station to be replaced with the heavy-duty electric truck. This saves the construction investment of the battery swapping station and the waste of battery swapping station resources after the transportation route changes.

[0036] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A mobile energy-replenishing flatbed device for replacing battery packs in heavy trucks, characterized by: The invention comprises a mobile flatbed vehicle (2), a centralized DC charging seat (3), a battery pack assembly (4), a bracket assembly (1), a charge-discharge connector (5), and an on-board charging pile (6); the bracket assembly (1) is installed on the mobile flatbed vehicle (2), and the mobile flatbed vehicle (2) is connected to the tractor head through a standard saddle; the centralized DC charging seat (3) is installed in a row at the front end and the end end of the upper surface of the mobile flatbed vehicle (2), and each is independently electrically connected to the charge-discharge connector (5); the charge-discharge connector (5) is provided in multiple groups, electrically connected to the battery pack assembly (4), and used to be connected to the charging port of the battery pack; the on-board charging pile (6) is fixedly installed on the mobile flatbed vehicle (2), one end of which is electrically connected to the battery pack assembly (4), and the other end is connected to an external charging and energy replenishing device.

2. The mobile energy replenishment flatbed device for replacing a heavy truck battery pack according to claim 1 is characterized in that: It also includes a bracket assembly (1) fixedly mounted on the upper surface of the mobile flatbed vehicle (2) and used to provide support for fixing and electrically connecting the components mounted on the mobile flatbed vehicle (2).

3. The mobile energy replenishment flatbed device for replacing a heavy truck battery pack according to claim 1 is characterized in that: The battery pack assembly (4) comprises a battery pack, an upper frame, and a bottom bracket; the bottom bracket is fixedly mounted inside the bracket assembly (1) and is used to fix the bottom of the battery pack; the upper frame is fixedly mounted on the top of the battery pack and is used to lift or move the battery pack; one battery pack corresponds to one bottom bracket and one upper frame, and the battery pack assembly (4) is installed with eight groups.

4. The mobile energy replenishment flatbed device for replacing a heavy truck battery pack according to claim 1 is characterized in that: It also includes a battery swap controller (8), which is installed on the bracket assembly (1). The battery swap controller (8) is responsible for the locking and unlocking functions of the battery pack assembly (4).

5. The mobile energy replenishment flatbed device for heavy truck battery replacement according to claim 1 or 4 is characterized in that: The invention also includes a charging and discharging intelligent cabinet (7), wherein the charging and discharging intelligent cabinet (7) includes a PCS device and a low-voltage control cabinet (9); the low-voltage control cabinet (9) is installed inside the charging and discharging intelligent cabinet (7); the PCS device is a structure that uses two energy replenishment charging methods, namely, mains electricity and wind and solar energy storage, to charge the vehicle-mounted battery pack, wherein when charging with mains electricity, one PCS device is directly electrically connected to multiple charging guns.

6. The mobile energy replenishment flatbed device for replacing a heavy truck battery pack according to claim 5 is characterized in that: It also includes charging ports, which are arranged in 8 groups and independently installed on the side of the battery pack.

7. The mobile energy replenishment flatbed device for replacing a heavy truck battery pack according to claim 5 is characterized in that: The vehicle-mounted charging pile has a structure that allows the charging and discharging smart cabinet to discharge the external battery pack through the vehicle-mounted battery pack to replenish energy via V2V.

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