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EP-4358246-B1 - INSERTION-TYPE BATTERY PACK HAVING FREELY CONFIGURABLE POWER, VEHICLE, AND BATTERY SWAPPING METHOD

EP4358246B1EP 4358246 B1EP4358246 B1EP 4358246B1EP-4358246-B1

Inventors

  • LI, SHUFU

Dates

Publication Date
20260506
Application Date
20220816

Claims (9)

  1. A battery pack power freely-configurable vehicle, wherein a power freely-configurable plug-in battery pack (1) is provided at a bottom of the vehicle (2), the power freely-configurable plug-in battery pack (1) comprises: an installation box (11), wherein a plurality of cell channels (111) are provided in the installation box (11); wherein a cell module (12) is pluggably installed in each cell channel (111), and a cell quick-replacement connector is provided between the cell module (12) and the cell channel (111); and a controller (13), wherein the controller (13) is electrically connected to the cell module (12) through the cell quick-replacement connector and is configured to control an operation of the cell module (12), wherein a dragging mechanism (113) is provided in each cell channel (111), the dragging mechanism (113) is configured to drag the cell module (12), and the cell module (12) is detachably installed in the cell channel (111) through the dragging mechanism (113); the dragging mechanism (113) comprises a fixing slot (114) and a sliding rod (115), and the fixing slot (114) is detachably connected to the cell channel (111); and the fixing slot (114) is provided close to an opening of the cell channel (111), the sliding rod (115) is slidably provided in the fixing slot (114), and the cell module (12) is dragged through the sliding rod (115); characterized in that , the cell channel (111) is provided at a lower part of the battery pack (1) and provided with an opening downward, and the cell module (12) is inserted vertically upward in the cell channel (111); or, a body quick-replacement connector (3) is provided at the bottom of the vehicle (2), the battery pack (1) and the vehicle (2) are connected through the body quick-replacement connector (3), the cell channel (111) is provided at a lower part of the battery pack (1) and provided with an opening downward, and the cell module (12) is inserted vertically upward in the cell channel (111).
  2. The battery pack power freely-configurable vehicle according to claim 1, wherein a partition (112) is formed between the two cell channels (111), the partition (112) is provided with a flow channel, and wiring harnesses and/or pipelines are provided in the flow channel.
  3. The battery pack power freely-configurable vehicle according to claim 2, wherein the installation box (11) is further provided with a locking mechanism, and the locking mechanism is configured to limit and lock the cell module (12) in the cell channel (111) or to release and unlock of the cell module (12) in the cell channel (111).
  4. The battery pack power freely-configurable vehicle according to claim 3, wherein the locking mechanism is provided on the partition (112).
  5. The battery pack power freely-configurable vehicle according to claim 4, wherein the cell channel (111) is configured as a slot structure, and a bottom of the slot structure is provided close to the controller (13).
  6. The battery pack power freely-configurable vehicle according to claim 1, wherein the dragging mechanism (113) is provided with a pull-out piece.
  7. The battery pack power freely-configurable vehicle according to claim 6, wherein the vehicle (2) further comprises a voltage-to-current converter electrically connected to the battery pack (1) and a motor of the vehicle (2) respectively.
  8. A battery replacement method for a vehicle with a power freely-configurable plug-in battery pack, applicable to the battery pack power freely-configurable vehicle according to claim 1, characterized in that , the battery replacement method comprises: (S100), in response to a current power of the battery pack being lower than a first power threshold, determining a target cell module, wherein a power of the battery pack in the target cell module is lower than a second power threshold and the second power threshold is less than or equal to the first power threshold; and (S102), replacing the target cell module based on the cell quick-replacement connector between the cell module and the cell channel, wherein a replacement cell module of the target cell module is inserted in a vertically upward direction.
  9. A battery replacement method for the vehicle with the power freely-configurable plug-in battery pack, applicable to the battery pack power freely-configurable vehicle according to claim 1 when comprising the body quick-replacement connector (3), characterized in that , the battery replacement method comprises (S200), in response to a current power of the battery pack being lower than a first power threshold, replacing the entire battery pack based on the body quick-replacement connector between the battery pack and the vehicle; or, (S202), in response to a current power of the battery pack being lower than a first power threshold, determining a target cell module, wherein a power of the battery pack in the target cell module is lower than a second power threshold and the second power threshold is less than or equal to the first power threshold; and (S204), replacing the target cell module based on the cell quick-replacement connector between the cell module and the cell channel, wherein a replacement cell module of the target cell module is inserted in a vertically upward direction.

Description

TECHNICAL FIELD The present application relates to the technical field of car range, and in particular to a power freely-configurable plug-in battery pack, a vehicle, and a battery replacement method. BACKGROUND In recent years, electrification has been a development trend in the automobile industry, and driving range is a key issue in the development of electric vehicles. However, due to the influence of battery energy density, the driving range of electric vehicles is relatively short, and range anxiety troubles consumers, which in turn affects their willingness to purchase electric vehicles to a certain extent, and also indirectly affects the electrification development of the automobile market. After market research, end users generally have two typical ways of using cars. The first is daily commuting, which takes up most of the time, and the daily driving distance is short, the second is long-distance driving. Vehicles with short daily driving distances cannot support users on long-distance driving, while vehicles with long driving range have extra weight of battery packs and hybrid components, which are redundant and burdensome when commuting, resulting in poor user experience. However, when the battery pack is currently replaced to meet different driving ranges, the battery pack replacement method is single, the replacement cost is high, the replacement location is limited, and the replacing efficiency is low. WO2018076849A1 provides a drawer type mobile charging vehicle, which aims to solve the problem that a current mobile charging vehicle of a battery-swapping type has difficulty in replacing a battery pack due to the limitations of sites during battery swapping and the large volume and weight of the battery pack. The drawer type mobile charging vehicle comprises a frame fixed inside a carriage of a vehicle body, multiple placement units fixed on the frame in a stacked manner, several battery packs placed on the placement units and a driving motor driving the placement units to move. When the mobile charging vehicle performs battery swapping, the driving motor conveys a battery pack on the placement units out of the carriage or into the carriage by driving the placement units to move. Therefore, this mobile charging vehicle is more convenient for battery swapping, and reduces the occupied area during battery swapping. CN108749785A provides a wheel-type electric vehicle power battery module, which includes a wheel-type frame, a single battery module and a lock; In the subspace, the single battery module is arranged in the subspace, and the end of the partition plate of the wheel frame is provided with a lock. The roulette module of the present invention is divided into six separate battery modules, each of which can be disassembled separately; The single battery module can be replaced at will by opening a battery exchange port. The operation is simple and convenient, without large-scale battery exchange equipment and a lot of manpower. The car owner can replace the fully charged single battery module by himself. If the car owner needs to drive for a long time and does not know the location information of the replacement station, he can prepare an extra battery module in advance according to the journey. When the power needs to be replenished, he can replace the battery module by himself. It is simple and convenient, and solves the problem of insufficient battery life during the journey. CN 212 257 481 U discloses vehicle comprising a power freely-configurable plug-in battery pack at a bottom of the vehicle, the battery pack comprising: an installation box, wherein a plurality of cell channels are provided; and a cell quick-replacement connector is provided between the cell module and the cell channel; and a controller, wherein the controller is electrically connected to the cell module through the cell quick-replacement connector and is configured to control an operation of the cell module, wherein the cell module is detachably installed in the cell channel. SUMMARY The technical problem to be solved by the present application is that the battery pack replacing efficiency of the related art is low and the contradiction between the driving range and the load weight cannot be considered in both short-distance driving and long-distance driving scenarios. In order to achieve the above technical problems, the present application provides a power freely-configurable plug-in battery pack, a vehicle and a battery replacement method. The invention is defined in the appended claims. Hereafter, "embodiment(s)" relate to embodiment(s) of the disclosure. According to an aspect of the present application, a battery pack power freely-configurable vehicle is provided, a power freely-configurable plug-in battery pack is provided at a bottom of the vehicle, and the battery pack includes: an installation box, a cell module, and a controller. A plurality of cell channels are provided in the installation box. The cell