WO2023050284A1 - 动力单元、端部结构以及车辆 - Google Patents

动力单元、端部结构以及车辆 Download PDF

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Publication number
WO2023050284A1
WO2023050284A1 PCT/CN2021/122107 CN2021122107W WO2023050284A1 WO 2023050284 A1 WO2023050284 A1 WO 2023050284A1 CN 2021122107 W CN2021122107 W CN 2021122107W WO 2023050284 A1 WO2023050284 A1 WO 2023050284A1
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power unit
battery
battery device
fuel cell
end structure
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PCT/CN2021/122107
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English (en)
French (fr)
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王凯
郝小罡
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罗伯特·博世有限公司
王凯
郝小罡
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Application filed by 罗伯特·博世有限公司, 王凯, 郝小罡 filed Critical 罗伯特·博世有限公司
Priority to CN202180102694.8A priority Critical patent/CN117999683A/zh
Priority to PCT/CN2021/122107 priority patent/WO2023050284A1/zh
Publication of WO2023050284A1 publication Critical patent/WO2023050284A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells

Definitions

  • the invention relates to a power unit, an end structure of a fuel cell stack for the power unit and a vehicle with the power unit.
  • the present invention relates to the field of vehicles, especially the field of FCEV (Fuel Cell Electric Vehicle, fuel cell electric vehicle).
  • a fuel cell electric vehicle usually both a fuel cell and other batteries (such as a secondary battery or a supercapacitor) are required, and they together act as a power unit to provide the required electric energy for the fuel cell electric vehicle.
  • the fuel cell and other batteries are usually separated and arranged at different positions of the vehicle body, thus the entire power unit occupies a large space.
  • the establishment of a thermal management system requires not only corresponding hardware, such as pipes and valves, but also a controller for controlling these hardware. The costs involved in this are high.
  • the purpose of the present invention is to provide an integrated power unit, which makes the space occupied by the power unit small and facilitates the integrated thermal management of the two batteries of the power unit.
  • a power unit includes:
  • a fuel cell stack comprising a stack body for generating power and two end structures configured to clamp the stack body from both ends;
  • At least one of the two end structures is provided with a receiving portion configured to accommodate the second battery device.
  • the accommodating portion of the at least one end structure includes an accommodating cavity and a cover, the accommodating cavity is configured to accommodate the second battery device, and the cover is configured In this way, the cover can move relative to the accommodating cavity, and the pressing member acting on the at least one end structure to compress the fuel cell stack can be accommodated in the fuel cell stack via the cover.
  • the second battery device in the accommodating cavity is compressed and fixed.
  • the accommodating cavity includes an accommodating groove matching the shape of the second battery device.
  • the power unit includes a coolant line
  • the coolant line includes a first portion and a second portion communicating with each other, the first portion is configured to be adapted to act on the fuel cell A battery stack, the second portion being configured to act on at least the second battery arrangement.
  • the second part of the coolant line includes at least one first line section, and the first line section is connected between the second battery device and the stack body and the At least one end structure extends between adjacent cells.
  • the second portion of the coolant circuit comprises a channel formed in the at least one end structure.
  • the second part of the coolant line includes at least one second line section connected in parallel with the first line section, and the first line section and the second line section enclose the Second battery device.
  • the second battery device is configured as a solid-state battery, and the first part of the coolant line is upstream of the second part.
  • the second battery device is configured as a lithium battery and/or an energy storage capacitor, and the first part of the coolant line is downstream of the second part.
  • the power unit includes two second battery devices, and each of the two end structures is provided with a receiving portion for respectively accommodating a second battery device, and
  • one second battery device is configured as a solid-state battery
  • the other second battery device is configured as a lithium battery and/or an energy storage capacitor
  • the second part of the coolant circuit is used for the lithium battery and
  • the subsections of/or the energy storage capacitor, the subsections for the solid-state battery of the first section and the second section are arranged in sequence along the coolant flow direction.
  • an end structure of a fuel cell stack for the aforementioned power unit the end structure is provided with a receiving portion configured to accommodate the power unit's second battery device.
  • existing fuel cell stacks can be easily modified through the end structure, for example, the end structure of the existing fuel cell stack can be replaced by the end structure, so that it can be easily converted into the present invention power unit.
  • a vehicle comprising at least one aforementioned power unit.
  • the positive effect of the present invention is: by accommodating the second battery device of the power unit in the end structure of the fuel cell stack, especially in the end plate, the space occupied by the power unit is small and it is convenient for the two batteries of the power unit for integrated thermal management.
  • FIG. 1 schematically shows an electrical system of a vehicle comprising an exemplary embodiment of the power unit of the present invention.
  • Fig. 2 schematically shows an exemplary embodiment of the coolant circuit of the power unit of the present invention.
  • Fig. 3 schematically shows another exemplary embodiment of the coolant circuit of the power unit of the present invention.
  • Fig. 4 schematically shows yet another exemplary embodiment of the coolant circuit of the power unit of the present invention.
  • Fig. 1 schematically shows an exemplary embodiment of the power unit of the present invention.
  • the power unit includes:
  • a fuel cell stack 1 comprising a stack body 10 for generating power and two end structures 11 configured to be clamped from both ends The stack body 10;
  • At least one end structure 11 of the two end structures 11 is provided with a receiving portion 110 configured to accommodate the second battery device 2 .
  • the end structure 11 is in particular an end plate of the fuel cell stack 1 .
  • the stack body 10 includes, for example, a plurality of cells 100 stacked on each other. When assembling the fuel cell stack 1, the bolts and nuts shown schematically in FIG. These cells 100 are compacted.
  • the fuel cell stack 1 is connected to the vehicle electrical system, for example via a DCDC converter, and the second battery arrangement 2 is connected directly or also via a corresponding converter to the vehicle electrical system in order to supply the vehicle with the required electrical energy.
  • the space occupied by the power unit is small and it is easy to perform integrated heat management on the two types of different batteries of the power unit, so as to Reduce energy consumption and save costs.
  • an efficient heat exchange can take place between the second battery arrangement 2 and the cells 100 of the stack body 10 which are close to the at least one end structure 11 .
  • Other structures and components of the fuel cell stack 1 are well known to those skilled in the art and will not be described in detail here.
  • Various different types of second battery arrangement 2 are conceivable here, in particular secondary batteries such as solid-state batteries, lithium batteries, energy storage capacitors and the like.
  • the accommodating portion 110 of the at least one end structure 11 includes an accommodating cavity 112 and a cover portion 114, the accommodating cavity 112 being configured to accommodate the second battery device 2,
  • the cover portion 114 is configured such that: the cover portion 114 is movable relative to the accommodating cavity 112 , and acts on the at least one end structure 11 to compress the fuel cell stack 1 .
  • the fastening member can compress and fix the second battery device 2 accommodated in the accommodation cavity 112 via the cover portion 114 .
  • the cover 114 is, for example, displaceable within the receiving chamber 112 relative to the receiving chamber 112 in the longitudinal direction of the fuel cell stack 1 .
  • the pressing elements include, for example, bolts or nuts. As shown in FIG.
  • the depth of the receiving cavity 112 may be greater than or equal to the sum of the height of the second battery device 2 and the height of the cover part 114 , so as to provide space for the cover part 114 to move.
  • the cover 114 can be reversed relative to the accommodating cavity 112; and/or, the depth of the accommodating cavity 112 is equal to or slightly smaller than the height of the second battery device 2, and the cover 114 directly covers the It is sufficient to press and fix the second battery device 2 on the upper side of the receiving cavity 112 .
  • the accommodating cavity 112 includes an accommodating groove matching the shape of the second battery device 2 .
  • the second battery device 2 can be clamped in the receiving groove in a form-fitting manner and achieve preliminary positioning.
  • the power unit includes, for example, a coolant line 3 schematically shown by a dotted line, and the coolant line 3 includes a first part 31 and a second part 32 communicating with each other.
  • the first part 31 is configured to act on said fuel cell stack 1 and said second portion 32 is configured to act on at least said second cell arrangement 2 .
  • the coolant in the coolant line 3 is used for heat exchange, which may include both cooling and heating of the corresponding components.
  • An integrated thermal management of the fuel cell stack 1 and the second cell arrangement 2 is made possible by the interconnected first part 31 and the second part 32 of the coolant line 3 . As shown in FIGS.
  • the first part 31 of the coolant circuit 3 usually includes a main pipeline arranged on both sides of the fuel cell stack 1 and a branch circuit extending through each cell 100 and connecting the main pipeline.
  • a branch circuit extending through each cell 100 and connecting the main pipeline.
  • the second part 32 of the coolant line 3 includes at least one first line section 321, and the first line section 321 is connected between the second battery device 2 and the electric stack.
  • the body 10 extends between the cells 100 adjacent to the at least one end structure 11 .
  • the temperature of the cell 100 adjacent to the end structure 11 of the stack main body 10 is generally lower due to a larger area of contact with the outside world, so that, for example, the second The heat of the battery device 2 is transferred to the adjacent cells 100 at the ends of the stack body 10 , thereby significantly improving the cold start performance of the vehicle.
  • the second portion 32 of the coolant line 3 comprises a channel configured in the at least one end structure 11 . In this way, additional lines can be saved and the heat transfer efficiency can be improved.
  • the second part 32 of the coolant line 3 includes at least one second line section 322 connected in parallel with the first line section 321, the first line section 321 and the first line section 321
  • the two line segments 322 surround the second battery device 2 .
  • a more effective thermal management of the second battery arrangement 2 can thereby be achieved.
  • the second line section 322 is partially arranged in the cover 114 .
  • the second battery device 2 is configured as a solid-state battery
  • the first part 31 of the coolant line 3 is upstream of the second part 32 (see Fig. 2 ).
  • Solid-state batteries generally need to work at a higher temperature to ensure high efficiency, so the coolant from the fuel cell stack 1 is still suitable for cooling the solid-state batteries.
  • the second battery device 2 is configured as a lithium battery and/or an energy storage capacitor, and the first part 31 of the coolant line 3 is located downstream of the second part 32 ( See Figure 3).
  • the operating temperature of the lithium battery and/or the storage capacitor is generally lower than that of the fuel cell, whereby the coolant from the lithium battery and/or the storage capacitor is still suitable for cooling the fuel cell.
  • the power unit includes two second battery devices 2 , and each of the two end structures 11 is provided with a receiving portion 110 for accommodating a second battery device 2 respectively.
  • one second battery device 2 is configured as a solid-state battery
  • the other second battery device 2 is configured as a lithium battery and/or an energy storage capacitor
  • the subsections of the second part 32 of the coolant line 3 for lithium batteries and/or energy storage capacitors, the subsections of the first part 31 and the second part 32 for solid state batteries are cooled along the The agent flow direction is arranged in sequence.
  • various combinations of the second cell arrangement 2 in the two end structures 11 of the fuel cell stack 1 are also conceivable and the organization of the coolant flow path and direction in connection with specific operating issues is conceivable.

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Abstract

本发明提出一种动力单元，所述动力单元包括：燃料电池电堆(1)，所述燃料电池电堆(1)包括用于产生动力的电堆主体(10)和两个端部结构(11)，所述两个端部结构(11)被配置成适于从两端夹住所述电堆主体(10)；与燃料电池类型不同的第二电池装置(2)；其中，所述两个端部结构(11)中的至少一个端部结构(11)设有容纳部(110)，所述容纳部(110)被配置成适于容纳所述第二电池装置(2)。本发明还涉及一种用于动力单元的端部结构和一种具有动力单元的车辆。本发明的优点在于：通过将动力单元的第二电池装置(2)容纳于燃料电池电堆(1)的端部结构(11)内，使得动力单元所占的空间小并且便于对动力单元的两种电池进行集成的热管理。

Description

动力单元、端部结构以及车辆 技术领域
本发明涉及一种动力单元、一种用于动力单元的燃料电池电堆的端部结构和一种具有动力单元的车辆。本发明例如涉及车辆领域、尤其是FCEV(Fuel Cell Electric Vehicle，燃料电池电动车)领域。
背景技术
在燃料电池电动车中，通常既需要燃料电池也需要其他电池(例如二次电池或超级电容)，它们一起作为动力单元来为燃料电池电动车提供所需的电能。在现有技术中，燃料电池和其他电池通常是分开的并且布置在车身的不同位置处，由此整个动力单元占据的空间很大。此外需要为燃料电池和其他电池各自提供一套热管理***。热管理***的建立既需要相应的硬件、例如管道和阀也需要对这些硬件进行控制的控制器。由此耗费的成本很高。
发明内容
本发明的目的在于提供一种集成的动力单元，使得动力单元所占的空间小并且便于对动力单元的两种电池进行集成的热管理。
根据本发明的第一方面，提供了一种动力单元，所述动力单元包括：
燃料电池电堆，所述燃料电池电堆包括用于产生动力的电堆主体和两个端部结构，所述两个端部结构被配置成适于从两端夹住所述电堆主体；
与燃料电池类型不同的第二电池装置；
其中，所述两个端部结构中的至少一个端部结构设有容纳部，所述容纳部被配置成适于容纳所述第二电池装置。
根据本发明的一个可选实施例，所述至少一个端部结构的容纳部包括容纳腔和盖部，所述容纳腔被配置成适于容纳所述第二电池装置，所述盖部被配置成：所述盖部能相对于所述容纳腔活动，并且，作用于所述至少 一个端部结构上的将所述燃料电池电堆压紧的压紧件能经由所述盖部将容纳于所述容纳腔中的所述第二电池装置压紧固定。
根据本发明的一个可选实施例，所述容纳腔包括与所述第二电池装置的形状相匹配的容纳槽。
根据本发明的一个可选实施例，所述动力单元包括冷却剂线路，所述冷却剂线路包括相互连通的第一部分和第二部分，所述第一部分被配置成适于作用于所述燃料电池电堆，所述第二部分被配置成适于至少作用于所述第二电池装置。
根据本发明的一个可选实施例，所述冷却剂线路的第二部分包括至少一个第一线路段，所述第一线路段在所述第二电池装置和所述电堆主体的与所述至少一个端部结构相邻的单体之间延伸经过。
根据本发明的一个可选实施例，所述冷却剂线路的第二部分包括构造在所述至少一个端部结构中的通道。
根据本发明的一个可选实施例，所述冷却剂线路的第二部分包括与所述第一线路段并联的至少一个第二线路段，所述第一线路段和所述第二线路段合围所述第二电池装置。
根据本发明的一个可选实施例，所述第二电池装置构造为固态电池，所述冷却剂线路的所述第一部分处于所述第二部分的上游。
根据本发明的一个可选实施例，所述第二电池装置构造为锂电池和/或储能电容，所述冷却剂线路的第一部分处于所述第二部分的下游。
根据本发明的一个可选实施例，所述动力单元包括两个第二电池装置，所述两个端部结构各设有一个容纳部用于分别容纳一个第二电池装置，在所述两个第二电池装置中，一个第二电池装置构造为固态电池，另一个第二电池装置构造为锂电池和/或储能电容，所述冷却剂线路的所述第二部分的用于锂电池和/或储能电容的子部分、所述第一部分和所述第二部分的用于固态电池的子部分沿冷却剂流动方向依次布置。
根据本发明的第二方面，提供了一种用于前述动力单元的燃料电池电堆的端部结构，所述端部结构设有容纳部，所述容纳部被配置成适于容纳所述动力单元的第二电池装置。通过所述端部结构例如能容易地对现有的燃料电池电堆进行改造，例如以所述端部结构替换现有的燃料电池电堆的 端部结构，使得能够容易地将其转变成本发明的动力单元。
根据本发明的第三方面，提供了一种车辆，所述车辆包括至少一个前述动力单元。
本发明的积极效果在于：通过将动力单元的第二电池装置容纳于燃料电池电堆的端部结构、尤其是端板内，使得动力单元所占的空间小并且便于对动力单元的两种电池进行集成的热管理。
附图说明
下面，通过参看附图更详细地描述本发明，可以更好地理解本发明的原理、特点和优点。附图包括：
图1示意性示出了车辆的电***，所述电***包括本发明的动力单元的一个示例性实施例。
图2示意性示出了本发明的动力单元的冷却剂线路的一个示例性实施例。
图3示意性示出了本发明的动力单元的冷却剂线路的另一个示例性实施例。
图4示意性示出了本发明的动力单元的冷却剂线路的又一个示例性实施例。
具体实施方式
为了使本发明所要解决的技术问题、技术方案以及有益的技术效果更加清楚明白，以下将结合附图以及多个示例性实施例对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用于解释本发明，而不是用于限定本发明的保护范围。
图1示意性示出了本发明的动力单元的一个示例性实施例。所述动力单元包括：
-燃料电池电堆1，所述燃料电池电堆1包括用于产生动力的电堆主体10和两个端部结构11，所述两个端部结构11被配置成适于从两端夹住所述电堆主体10；
-与燃料电池类型不同的第二电池装置2；
其中，所述两个端部结构11中的至少一个端部结构11设有容纳部110，所述容纳部110被配置成适于容纳所述第二电池装置2。所述端部结构11尤其是燃料电池电堆1的端板。电堆主体10例如包括相互堆叠的多个单体100。在组装燃料电池电堆1时，将在图1中示意性示出的螺栓和螺母拧紧，从而将两个端部结构11与电堆主体10或者说将两个端板与电堆主体10的这些单体100压紧。燃料电池电堆1例如经由DCDC转换器连接到车载电网中，而第二电池装置2直接地或也经由相应的转换器连接到车载电网中，以便为车辆提供所需的电能。通过将第二电池装置2集成地容纳于燃料电池电堆1的端部结构11中，使得动力单元所占的空间小并且易于对动力单元的两种类型不同的电池进行集成的热管理，以降低能量耗费和节省成本。尤其是在第二电池装置2和电堆主体10的靠近所述至少一个端部结构11的单体100之间可存在有效的热交换。燃料电池电堆1的其他结构和部件对于本领域技术人员充分已知，在此不再详细描述。在此可设想第二电池装置2的各种不同类型，尤其是二次电池、例如固态电池、锂电池以及储能电容等等。
根据本发明的一个示例性实施例，所述至少一个端部结构11的容纳部110包括容纳腔112和盖部114，所述容纳腔112被配置成适于容纳所述第二电池装置2，所述盖部114被配置成：所述盖部114能相对于所述容纳腔112活动，并且，作用于所述至少一个端部结构11上的将所述燃料电池电堆1压紧的压紧件能经由所述盖部114将容纳于所述容纳腔112中的所述第二电池装置2压紧固定。所述盖部114例如能在容纳腔112内相对于所述容纳腔112沿燃料电池电堆1的纵向方向移动。所述压紧件例如包括螺栓或螺母。如图1所示，在拧紧螺母以将燃料电池电堆1的端部结构11与电堆主体10压紧时，螺母会挤压能够活动的盖部114，从而将容纳于容纳腔112中的第二电池装置2压紧固定。在此，容纳腔112的深度可以大于或等于第二电池装置2的高度与盖部114的高度之和，从而为盖部114的移动提供空间。但也可设想，所述盖部114例如能相对于所述容纳腔112翻转；和/或，容纳腔112的深度等于或略小于第二电池装置2的高度，盖部114在此则直接盖在容纳腔112的上侧就足以将第二电池装置2压紧固定。
根据本发明的一个示例性实施例，所述容纳腔112包括与所述第二电池装置2的形状相匹配的容纳槽。由此，第二电池装置2能形状配合地卡装在容纳槽中并实现初步定位。
如图2和图3所示，所述动力单元例如包括以虚线示意性示出的冷却剂线路3，所述冷却剂线路3包括相互连通的第一部分31和第二部分32，所述第一部分31被配置成适于作用于所述燃料电池电堆1，所述第二部分32被配置成适于至少作用于所述第二电池装置2。冷却剂线路3中的冷却剂用于进行热交换，所述热交换既可能包括将相应的部件冷却、也可能包括将相应的部件加热。通过冷却剂线路3的相互连通的第一部分31和第二部分32，使得能实现燃料电池电堆1和第二电池装置2的集成的热管理。如图2和3所示，冷却剂线路3的第一部分31通常包括设置在燃料电池电堆1两侧的主管路和延伸经过各个单体100并且将主管路连通的支路。为了附图清楚，在图2和3中仅以细虚线示意性示出了位于两端的两个单体100中的支路。
根据本发明的一个示例性实施例，所述冷却剂线路3的第二部分32包括至少一个第一线路段321，所述第一线路段321在所述第二电池装置2和所述电堆主体10的与所述至少一个端部结构11相邻的单体100之间延伸经过。在车辆的冷启动阶段，电堆主体10的与端部结构11相邻的单体100通常由于与外界的更大面积的接触而温度更低，由此通过上述方式例如能有效地将第二电池装置2的热量传递到电堆主体10的位于端部的相邻单体100上，由此显著地改善车辆的冷启动性能。
根据本发明的一个示例性实施例，所述冷却剂线路3的第二部分32包括构造在所述至少一个端部结构11中的通道。由此可以省去额外的管路并提高导热效率。
根据本发明的一个示例性实施例，所述冷却剂线路3的第二部分32包括与所述第一线路段321并联的至少一个第二线路段322，所述第一线路段321和所述第二线路段322合围所述第二电池装置2。由此能实现第二电池装置2的更有效的热管理。在此也可设想，第二线路段322部分地设置在盖部114中。
根据本发明的一个示例性实施例，所述第二电池装置2构造为固态电 池，所述冷却剂线路3的所述第一部分31处于所述第二部分32的上游(参见图2)。固态电池通常需要在更高的温度工作以保证高效率，所以从燃料电池电堆1出来的冷却剂仍适用于冷却固态电池。
根据本发明的一个示例性实施例，所述第二电池装置2构造为锂电池和/或储能电容，所述冷却剂线路3的所述第一部分31处于所述第二部分32的下游(参见图3)。锂电池和/或储能电容的工作温度一般低于燃料电池，由此来自锂电池和/或储能电容的冷却剂仍适用于冷却燃料电池。
根据本发明的一个示例性实施例，所述动力单元包括两个第二电池装置2，所述两个端部结构11各设有一个容纳部110用于分别容纳一个第二电池装置2。如图4所示，可设想，在所述两个第二电池装置2中，一个第二电池装置2构造为固态电池，另一个第二电池装置2构造为锂电池和/或储能电容，所述冷却剂线路3的所述第二部分32的用于锂电池和/或储能电容的子部分、所述第一部分31和所述第二部分32的用于固态电池的子部分沿冷却剂流动方向依次布置。但作为替代方案，也可设想在燃料电池电堆1的两个端部结构11中的第二电池装置2的各种组合并结合具体工作问题组织冷却剂流动路径与方向。
尽管这里详细描述了本发明的特定实施方式，但它们仅仅是为了解释的目的而给出的，而不应认为它们对本发明的范围构成限制。在不脱离本发明精神和范围的前提下，各种替换、变更和改造可被构想出来。
附图标记列表
1    燃料电池电堆
10   电堆主体
100  单体
11   端部结构
110  容纳部
112  容纳腔
114  盖部
2    第二电池装置
3    冷却剂线路
31   第一部分
32   第二部分
321  第一线路段
322  第二线路段

Claims (10)

  1. 一种动力单元，所述动力单元包括：
    燃料电池电堆(1)，所述燃料电池电堆(1)包括用于产生动力的电堆主体(10)和两个端部结构(11)，所述两个端部结构(11)被配置成适于从两端夹住所述电堆主体(10)；
    与燃料电池类型不同的第二电池装置(2)；
    其中，所述两个端部结构(11)中的至少一个端部结构(11)设有容纳部(110)，所述容纳部(110)被配置成适于容纳所述第二电池装置(2)。
  2. 如权利要求1所述的动力单元，其中，所述至少一个端部结构(11)的容纳部(110)包括容纳腔(112)和盖部(114)，所述容纳腔(112)被配置成适于容纳所述第二电池装置(2)，所述盖部(114)被配置成：所述盖部(114)能相对于所述容纳腔(112)活动，并且，作用于所述至少一个端部结构(11)上的用于将所述燃料电池电堆(1)压紧的压紧件能经由所述盖部(114)将容纳于所述容纳腔(112)中的所述第二电池装置(2)压紧固定。
  3. 如权利要求2所述的动力单元，其中，所述容纳腔(112)包括与所述第二电池装置(2)的形状相匹配的容纳槽。
  4. 如权利要求1至3中任一项所述的动力单元，其中，所述动力单元包括冷却剂线路(3)，所述冷却剂线路(3)包括相互连通的第一部分(31)和第二部分(32)，所述第一部分(31)被配置成适于作用于所述燃料电池电堆(1)，所述第二部分(32)被配置成适于至少作用于所述第二电池装置(2)。
  5. 如权利要求4所述的动力单元，其中，所述动力单元包括以下特征中的至少一项：
    所述冷却剂线路(3)的第二部分(32)包括至少一个第一线路段(321)， 所述第一线路段(321)在所述第二电池装置(2)和所述电堆主体(10)的与所述至少一个端部结构(11)相邻的单体(100)之间延伸经过；
    所述冷却剂线路(3)的第二部分(32)包括构造在所述至少一个端部结构(11)中的通道。
  6. 如权利要求5所述的动力单元，其中，所述冷却剂线路(3)的第二部分(32)包括与所述第一线路段(321)并联的至少一个第二线路段(322)，所述第一线路段(321)和所述第二线路段(322)合围所述第二电池装置(2)。
  7. 如权利要求4至6中任一项所述的动力单元，
    其中，所述第二电池装置(2)构造为固态电池，所述冷却剂线路(3)的所述第一部分(31)处于所述第二部分(32)的上游，或者，
    其中，所述第二电池装置(2)构造为锂电池和/或储能电容，所述冷却剂线路(3)的所述第一部分(31)处于所述第二部分(32)的下游。
  8. 如权利要求4至6中任一项所述的动力单元，其中，所述动力单元包括两个第二电池装置(2)，所述两个端部结构(11)各设有一个容纳部(110)用于分别容纳一个第二电池装置(2)，在所述两个第二电池装置(2)中，一个第二电池装置(2)构造为固态电池，另一个第二电池装置(2)构造为锂电池和/或储能电容，所述冷却剂线路(3)的所述第二部分(32)的用于锂电池和/或储能电容的子部分、所述第一部分(31)和所述第二部分(32)的用于固态电池的子部分沿冷却剂流动方向依次布置。
  9. 一种用于权利要求1至8中任一项所述的动力单元的燃料电池电堆(1)的端部结构(11)，所述端部结构(11)设有容纳部(110)，所述容纳部(110)被配置成适于容纳所述动力单元的第二电池装置(2)。
  10. 一种车辆，所述车辆包括至少一个如权利要求1至8中任一项所述的动力单元。
PCT/CN2021/122107 2021-09-30 2021-09-30 动力单元、端部结构以及车辆 WO2023050284A1 (zh)

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