Vehicle fuel cell assembly including integrated high voltage junction box

Abstract

The application relates to a vehicle fuel cell assembly comprising an integrated high voltage junction box, in particular a vehicle fuel cell assembly (1) for a vehicle (100). The vehicle fuel cell assembly (1) includes: a fuel cell stack (10); a high-voltage junction box (20) comprising connection interfaces (22) for electrically connecting to a high-voltage vehicle interface (110), the fuel cell stack (10), and a plurality of high-voltage electrical consumers (32, 34, 36) of the vehicle (100), where the high-voltage junction box (20) is arranged in the vicinity of the fuel cell stack (10).

Description

Technical Field

[0001] The present disclosure generally relates to fuel cell vehicles. In particular aspects, the present disclosure relates to a vehicle fuel cell assembly including an integrated high voltage junction box. The present disclosure may be applicable to heavy vehicles such as trucks, buses, and construction equipment, as well as other vehicle types. Background Art

[0002] Fuel and air, such as hydrogen, are provided to a vehicle fuel cell to provide electrical energy. The vehicle fuel cell includes not only a fuel cell stack in which chemical energy is converted into electrical energy, but also many components for cooling the fuel cell stack and for distributing fuel and air. These components typically require electrical energy. Additionally, electrical energy will be provided from the vehicle fuel cell to a vehicle battery and typically to auxiliary power-consuming devices of the vehicle. Existing technology solutions for providing or transferring electrical energy within and to and from a vehicle fuel cell have various disadvantages, such as complex design, bulky, expensive, and time-consuming to assemble. Summary of the Invention

[0003] According to a first aspect of the present disclosure, there is provided a vehicle fuel cell assembly for a vehicle. The vehicle fuel cell assembly includes a fuel cell stack and a high voltage junction box, the high voltage junction box including connection interfaces for electrically connecting to a high voltage vehicle interface, the fuel cell stack, and a plurality of power-consuming devices of the vehicle. The high voltage junction box is disposed near the fuel cell stack. The first aspect of the present disclosure may seek to solve or mitigate problems of existing technology solutions. Specifically, this vehicle fuel cell assembly can reduce the number of components, provide a compact design, and allow for quick assembly and installation. The wiring of electrical conductors can be simplified and requires fewer (e.g., shorter) conductors. Some existing technology solutions may be based on providing multiple separate junction boxes, while this solution may be based on fewer high voltage junction boxes, typically a single high voltage junction box, which can be integrated with the fuel cell stack in the vehicle fuel cell assembly.

[0004] Optionally, in some examples, including in at least one preferred example, the high voltage vehicle interface is a high voltage battery.

[0005] Optionally, in some examples, including in at least one preferred example, the high voltage vehicle interface is an additional high voltage junction box.

[0006] Optionally, in some examples, including in at least one preferred example, the high voltage junction box includes a converter for converting the voltage of the fuel cell stack. Thereby, it may not be necessary to provide a separate converter to convert the voltage of the fuel cell stack. Additionally, the electrical connection between the converter and the fuel cell stack can be simplified and cost-effective.

[0007] Optionally, in some examples, including in at least one preferred example, the converter can be adapted to convert the voltage of the fuel cell stack into the voltage of a connection interface for electrical connection to a high-voltage vehicle interface. Thus, the converter can be operatively arranged between the fuel cell stacks such that the power generated in the fuel cell stacks can be supplied to the high-voltage vehicle interface. No other components may be operatively required between the fuel cell stack and the high-voltage vehicle interface.

[0008] Optionally, in some examples, including in at least one preferred example, the high-voltage junction box includes a single converter for converting the voltage of the fuel cell stack into the voltage of a connection interface for connection to a high-voltage vehicle interface. Such a solution may be compact and cost-effective.

[0009] Optionally, in some examples, including in at least one preferred example, the connection interface for electrical connection to the high-voltage vehicle interface is a DC connection interface. Thus, the connection interface can be directly connected to the high-voltage vehicle interface.

[0010] Optionally, in some examples, including in at least one preferred example, the current transfer capacity of the connection interface for electrical connection to the high-voltage vehicle interface is at least 250 amperes. Such a transfer capacity can make the vehicle fuel cell assembly suitable for vehicles with high power demands, such as heavy vehicles. The current transfer capacity of the connection interface for electrical connection to the high-voltage vehicle interface can be at least 500 amperes.

[0011] Optionally, in some examples, including in at least one preferred example, the connection interface for electrical connection to the high-voltage vehicle battery is adapted for a cable with a conductor area of at least 100 mm 2 . Such a conductor area can make the vehicle fuel cell assembly suitable for vehicles with high power demands, such as heavy vehicles.

[0012] Optionally, in some examples, including in at least one preferred example, at least one of the connection interfaces is suitable for a cable joint. Such a solution can enable quick installation, i.e., connecting the conductor to the high-voltage junction box. Specifically, a conductor such as a cable can include a cable joint, and the cable joint can pass through the protruding connector of the connection interface and be fixed by a threaded member.

[0013] Optionally, in some examples, including in at least one preferred example, at least one of the connection interfaces is adapted for a cable plug. Such a solution can enable particularly quick installation, i.e., connecting the conductor to the high-voltage junction box. Specifically, a conductor such as a cable can include a cable plug, and the cable plug can be inserted into the socket of the connection interface.

[0014] Optionally, in some examples, including at least one preferred example, a vehicle fuel cell assembly includes at least one fuse associated with at least one connection interface, and the fuse is located inside a high-voltage junction box. Therefore, fuses may be less needed or not needed outside the high-voltage junction box. Additionally, the fuses within the high-voltage junction box are readily available for inspection, replacement, or repair.

[0015] Optionally, in some examples, including at least one preferred example, a vehicle fuel cell assembly includes at least one fuse associated with at least one connection interface, and the fuse is located outside the high-voltage junction box.

[0016] Optionally, in some examples, including at least one preferred example, high-voltage power-consuming devices of a vehicle include a fan, a coolant pump, a compressor, or an electric turbocharger.

[0017] Optionally, in some examples, including at least one preferred example, a high-voltage junction box includes a connection interface for electrically connecting to an auxiliary power-consuming device. Therefore, no additional junction box may be needed to supply power to the auxiliary power-consuming device.

[0018] Optionally, in some examples, including at least one preferred example, an auxiliary power-consuming device includes a power output device or a braking resistor.

[0019] Optionally, in some examples, including at least one preferred example, a high-voltage vehicle interface is located outside the high-voltage junction box. Therefore, the high-voltage junction box can be relatively compact and arranged near the fuel cell stack, such as attached to the fuel cell stack. Additionally, such a high-voltage junction box can be used with vehicle batteries of various voltages.

[0020] Optionally, in some examples, including at least one preferred example, the high-voltage junction box is arranged adjacent to the fuel cell stack. The conductors connecting the high-voltage junction box to the fuel cell stack can thus be particularly short. Generally, the high-voltage junction box can be arranged adjacent to the fuel cell stack or placed on top of the fuel cell stack. Generally, a high-voltage junction box arranged beside or on top of the fuel cell stack is easy to inspect and repair. The high-voltage junction box can be placed on the fuel cell stack.

[0021] Optionally, in some examples, including at least one preferred example, the high-voltage junction box is attached to the fuel cell stack. The high-voltage junction box can be mounted on the fuel cell stack. The high-voltage junction box can be mounted on top of the fuel cell stack.

[0022] Optionally, in some examples, including in at least one preferred example, the high-voltage junction box includes a side surface having a box conductor opening, and the side surface is arranged adjacent to the fuel cell stack such that the conductor can extend through the box conductor opening and directly enter the fuel cell stack. Thus, a particularly short connector can be used between the high-voltage junction box and the fuel cell stack.

[0023] Optionally, in some examples, including in at least one preferred example, the high-voltage junction box includes a controller for controlling a vehicle fuel cell assembly. For example, the controller can be configured to control components such as a fan, a coolant pump, a compressor, or an electric turbocharger. Additionally or alternatively, the controller can be configured to control a valve that regulates the flow of air or fuel into and out of the fuel cell stack.

[0024] Optionally, in some examples, including in at least one preferred example, the high-voltage vehicle interface is a high-voltage vehicle battery.

[0025] Optionally, in some examples, including in at least one preferred example, the high-voltage vehicle interface is an additional high-voltage junction box.

[0026] According to a second aspect of the present disclosure, a vehicle including the vehicle fuel cell assembly of the first aspect is provided. The vehicle can be a heavy vehicle.

[0027] Optionally, in some examples, including in at least one preferred example, the heavy vehicle includes a cockpit or a cab, and the vehicle fuel cell assembly is located below the cockpit, that is, at the front of the heavy vehicle. The vehicle fuel cell assembly can be located in a so-called under-cab module MUC.

[0028] The disclosed aspects, examples (including any preferred examples) and / or the appended claims can be appropriately combined with each other, which will be obvious to any ordinary person skilled in the art. Additional features and advantages are disclosed in the following description, claims and drawings, and will be partially obvious to those skilled in the art or recognized by practicing the present disclosure as described herein. Description of the Drawings

[0029] Examples will be described in more detail below with reference to the drawings.

[0030] Figure 1A is a schematic diagram of a vehicle fuel cell assembly and a vehicle equipped with the vehicle fuel cell assembly according to an example.

[0031] Figure 1B is a schematic diagram of a vehicle fuel cell assembly and a vehicle equipped with the vehicle fuel cell assembly according to an example.

[0032] Figure 2An example of the vehicle fuel cell assembly of FIG. 1 is shown in more detail.

[0033] Figure 3 An example of a heavy vehicle including the vehicle fuel cell assembly of FIG. 1 or Figure 2 is shown. Detailed Description

[0034] The detailed description set forth below provides information and examples of the disclosed technology in sufficient detail to enable those skilled in the art to practice the disclosure.

[0035] FIG. 1 schematically shows a top plan view of a vehicle fuel cell assembly 1 disposed in a vehicle 100 according to two examples ( Figure 1A and Figure 1B ). Figure 2 is a more detailed side view of a vehicle fuel cell assembly 1 in a similar configuration.

[0036] Referring to FIG. 1 and Figure 2 , a vehicle fuel cell assembly 1 for a vehicle 100 is disclosed. The vehicle fuel cell assembly 1 includes a fuel cell stack 10 and a high-voltage junction box 20. The high-voltage junction box 20 includes a connection interface 22 for electrical connection to a high-voltage vehicle interface 110 and the fuel cell stack 10. The high-voltage junction box 20 is disposed near the fuel cell stack 10.

[0037] In one example, the high-voltage vehicle interface 110 is a high-voltage vehicle battery. In one example, the high-voltage vehicle interface 110 is an additional high-voltage junction box. In the following examples, the high-voltage vehicle interface 110 is referred to as the high-voltage vehicle battery.

[0038] In one example, the connection interface 22 is configured to be electrically connected to a plurality of high-voltage power-consuming devices 32, 34, 36, 38 of the vehicle 100. The connection interface 22 may include at least one connector for electrical connection to at least one high-voltage power-consuming device of the vehicle 100.

[0039] This high-voltage junction box 20 further includes a converter 25 for converting the voltage of the fuel cell stack 10, as Figure 2 shown. This converter 25 is adapted to convert the voltage of the fuel cell stack 10 to the voltage of a connection interface 22a ( Figure 2 ) for electrical connection to the high-voltage vehicle battery 110. In this example, the high-voltage junction box 20 includes a single such converter 25.

[0040] The connection interface 22a for electrically connecting to the high-voltage vehicle battery 110 can advantageously be a DC connection interface. This can be advantageous because an AC connection interface would require an external rectifier to connect to the battery. The current-carrying capacity of the connection interface 22a for electrically connecting to the high-voltage vehicle battery 110 can be at least 250 amperes, or at least 500 amperes. The connection interface 22a can be adapted for a cable with a conductor area of at least 100 mm 2 of cable. The connection interface 22a for electrically connecting to the high-voltage vehicle battery 110 can be referred to as the battery connection interface 22a.

[0041] At least one of the connection interfaces 22 of the high-voltage junction box 20 can be adapted for a cable joint or a cable plug.

[0042] As Figure 2 shown, the vehicle fuel cell assembly 1 can include at least one fuse 40 associated with at least one connection interface 22. The fuse 40 can be located inside the high-voltage junction box 20, see Figure 2 . Alternatively or additionally, there can be at least one fuse (not shown) associated with at least one connection interface, and the fuse is located outside the high-voltage junction box 20.

[0043] Referring again to Figure 1A and Figure 1B , the high-voltage power-consuming devices of the vehicle 100 can include a fan 32, a coolant pump 34, and / or a compressor 36. In one example, the compressor is part of the vehicle fuel cell assembly 1 (as Figure 1B shown). The compressor can be a fuel compressor.

[0044] sFigure 1 indicates that there may be additional high-voltage power-consuming devices, such as an electric turbocharger 38.

[0045] In one example, the high-voltage junction box 20 can thus include: a battery connection interface 22a for electrically connecting to the high-voltage vehicle battery 110; a stack connection interface 22a for electrically connecting to the fuel cell stack 10; a pump connection interface 22d for electrically connecting to the coolant pump 34; a fan connection interface 22e for electrically connecting to the fan 32; and / or a compressor connection interface 22f for electrically connecting to the compressor 36. In addition, the high-voltage junction box 20 can include, for example, a turbine connection interface (not shown) for electrically connecting to an electric turbocharger.

[0046] As Figure 2 shown, the high-voltage junction box 20 can include a connection interface 22c for electrically connecting to an auxiliary power-consuming device 120. An example of the auxiliary power-consuming device 120 is the power output device 120 shown in Figure 1, or a braking resistor (not shown). The connection interface for electrically connecting to the auxiliary power-consuming device 120 can be referred to as the auxiliary connection interface 22c.

[0047] FIG. 1 schematically shows two cables leading from the battery connection interface 22a to the high-voltage vehicle battery 110, while Figure 2 shows four cables corresponding to a typical implementation. Each of the four cables may have a conductor area of at least 100 mm 2 , such as 120 mm 2 .

[0048] The connection interfaces 22a - 22f can generally be adapted to different electrical loads. For example, the battery connection interface 22a can be adapted to transmit more power than the fan connection interface 22e. The connection interface 22 can be, for example, a socket for receiving a cable plug, a terminal through-hole into which a cable joint can be screwed, or a terminal element to which conductors such as cables can be welded or brazed.

[0049] As shown in FIG. 1, the high-voltage vehicle battery 110 can be located outside the high-voltage junction box 20. The vehicle 100 can include, for example, a fuel tank (not shown) containing hydrogen and a propulsion motor (not shown).

[0050] As shown, the high-voltage junction box 20 can be arranged adjacent to the fuel cell stack 10. Generally, this high-voltage junction box 20 is attached to the fuel cell stack 10. In the example of FIG. 1, the high-voltage junction box 20 is attached to one side of the fuel cell stack 10. In the Figure 2 example, the high-voltage junction box 20 is attached to the top of the fuel cell stack 10.

[0051] Referring again to Figure 2 , the high-voltage junction box 20 can include a side (the bottom side in Figure 2 ) arranged adjacent to the fuel cell stack 10. The side can include a box-shaped conductor opening as shown in Figure 2 . The conductor shown by the dashed line can extend through the box-shaped conductor opening and directly into the fuel cell stack 10. Thus, the box-shaped conductor opening can be arranged adjacent to the fuel cell stack 10 and can be aligned with a suitable position on the fuel cell stack 10 to connect or receive the conductor.

[0052] The high-voltage junction box 20 can include a controller (not shown) for controlling the vehicle fuel cell assembly 1. The controller can control, for example, the fan 32 and the coolant pump 34.

[0053] Figure 3 FIG. shows a vehicle 100 including the vehicle fuel cell assembly 1. In this example, the vehicle is a heavy vehicle. The heavy vehicle includes a cockpit or cab. The vehicle fuel cell assembly 1 is located below the cockpit, i.e., at the front of the heavy vehicle.

[0054] The vehicle fuel cell assembly or fuel cell generally includes a fuel cell stack 10, as shown in FIGS. 1 and Figure 2are schematically shown. These stacks are typically bipolar plates, electrically connected, and have inputs and outputs for cathode gas (usually air) and anode gas (such as hydrogen). The characteristics and functions of fuel cells (including fuel cell stacks) are known to those skilled in the art and will not be described in detail herein.

[0055] Examples according to the following are also disclosed:

[0056] 1. A vehicle fuel cell assembly (1) for a vehicle (100), the vehicle fuel cell assembly (1) comprising: a fuel cell stack (10); a high-voltage junction box (20), the high-voltage junction box including connection interfaces (22) for electrical connection to: a high-voltage vehicle interface (110); the fuel cell stack (10) and a plurality of high-voltage power-consuming devices (32, 34, 36) of the vehicle (100); wherein the high-voltage junction box (20) is arranged near the fuel cell stack (10).

[0057] 2. The vehicle fuel cell assembly (1) according to Example 1, wherein the high-voltage junction box (20) includes a converter (25) for converting the voltage of the fuel cell stack (10).

[0058] 3. The vehicle fuel cell assembly (1) according to Example 2, wherein the converter (25) is adapted to convert the voltage of the fuel cell stack (10) to the voltage for the connection interface (22a) for electrical connection to the high-voltage vehicle interface (110).

[0059] 4. The vehicle fuel cell assembly (1) according to Example 3, wherein the high-voltage junction box (20) includes a single converter (25) for converting the voltage of the fuel cell stack (10) to the voltage for the connection interface (22a) for connection to the high-voltage vehicle interface (110).

[0060] 5. The vehicle fuel cell assembly (1) according to any one of the preceding examples, wherein the connection interface (22a) for electrical connection to the high-voltage vehicle interface (110) is a DC connection interface.

[0061] 6. The vehicle fuel cell assembly (1) according to Example 5, wherein the current-carrying capacity of the connection interface (22a) for electrical connection to the high-voltage vehicle interface is at least 250 amperes.

[0062] 7. The vehicle fuel cell assembly (1) according to Example 5 or 6, wherein the connection interface (22a) for electrical connection to the high-voltage vehicle interface (110) is adapted for a cable with a conductor area of at least 100 mm 2 2.

[0063] 8. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein at least one of the connection interfaces (22) is adapted for a cable joint.

[0064] 9. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein at least one of the connection interfaces (22) is adapted for a cable plug.

[0065] 10. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, comprising at least one fuse (40) associated with at least one connection interface (22), the fuse (40) being located inside the high-voltage junction box (20).

[0066] 11. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, comprising at least one fuse associated with at least one connection interface, the fuse being located outside the high-voltage junction box (20).

[0067] 12. The vehicle fuel cell assembly (1) as described in any of the foregoing examples,

[0068] 13. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage power-consuming devices of the vehicle (100) include a fan (32), a coolant pump (34), a compressor (36) or an electric turbocharger.

[0069] 14. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage junction box (20) includes a connection interface (22c) for electrical connection to an auxiliary power-consuming device (120).

[0070] 15. The vehicle fuel cell assembly (1) as described in Example 13, wherein the auxiliary power-consuming device includes a power output device or a braking resistor.

[0071] 16. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage vehicle interface (110) is located outside the high-voltage junction box (20).

[0072] 17. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage junction box (20) is arranged adjacent to the fuel cell stack (10).

[0073] 18. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage junction box (20) is attached to the fuel cell stack (10).

[0074] 19. The vehicle fuel cell assembly (1) as described in any of the foregoing examples, wherein the high-voltage junction box (20) includes a controller for controlling the vehicle fuel cell assembly (1).

[0075] 20. A vehicle (100), the vehicle comprising a vehicle fuel cell assembly (1) as described in any of the preceding examples.

[0076] 21. The vehicle (100) as described in example 19, wherein the vehicle is a heavy vehicle.

[0077] 22. The heavy vehicle (100) as described in example 20, wherein the heavy vehicle comprises a cockpit or a cab, and the vehicle fuel cell assembly (1) is located below the cockpit, i.e., at the front of the heavy vehicle.

[0078] The terms used herein are for the purpose of describing particular aspects only and are not intended to limit the disclosure. As used herein, unless the context clearly dictates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms as well. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It should also be understood that the terms "comprises" and / or "comprising", when used herein, specify the presence of stated features, integers, acts, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, acts, steps, operations, elements, components, and / or groups thereof.

[0079] It should be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0080] Relative terms such as "below" or "above" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that these terms, as well as those discussed above, are intended to cover different device orientations in addition to the orientation depicted in the figures. It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element, or there may be intervening elements. In contrast, when an element is referred to as "directly connected" or "directly coupled" to another element, there are no intervening elements.

[0081] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that, unless explicitly defined herein, the terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant art, and should not be interpreted in an idealized or overly formal sense.

[0082] It should be understood that the present disclosure is not limited to the aspects described above and shown in the drawings; rather, those skilled in the art will recognize that many changes and modifications can be made within the scope of the present disclosure and the appended claims. In the drawings and the specification, the aspects have been disclosed for illustrative purposes only and not for purposes of limitation, and the scope of the disclosure is set forth in the appended claims.

Claims

1. A vehicle fuel cell assembly (1) for a vehicle (100), the vehicle fuel cell assembly (1) comprising a fuel cell stack (10) a high - voltage junction box (20), the high - voltage junction box including connection interfaces (22) for electrical connection to a high - voltage vehicle interface (110), the fuel cell stack (10), and a plurality of high - voltage power - consuming devices (32, 34, 36, 38) of the vehicle (100), wherein the high - voltage junction box (20) is arranged near the fuel cell stack (10).

2. The vehicle fuel cell assembly (1) according to claim 1, wherein the high - voltage junction box (20) includes a converter (25) for converting the voltage of the fuel cell stack (10).

3. The vehicle fuel cell assembly (1) according to claim 2, wherein the converter (25) is adapted to convert the voltage of the fuel cell stack (10) to the voltage for the connection interface (22a) for electrical connection to the high - voltage vehicle interface (110).

4. The vehicle fuel cell assembly (1) according to claim 3, wherein the high - voltage junction box (20) includes a single converter (25) for converting the voltage of the fuel cell stack (10) to the voltage for the connection interface (22a) for connection to the high - voltage vehicle interface (110).

5. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the connection interface (22a) for electrical connection to the high - voltage vehicle interface (110) is a DC connection interface.

6. The vehicle fuel cell assembly (1) according to claim 5, wherein the current - carrying capacity of the connection interface (22a) for electrical connection to the high - voltage vehicle interface is at least 250 amperes.

7. The vehicle fuel cell assembly (1) according to claim 5 or 6, wherein the connection interface (22a) for electrical connection to the high-voltage vehicle interface (110) is adapted for a cable having a conductor area of at least 100 mm 2 2.

8. The vehicle fuel cell assembly (1) according to any one of the preceding claims, including at least one fuse (40) associated with at least one connection interface (22), the fuse (40) being located inside the high - voltage junction box (20).

9. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the high - voltage vehicle interface (110) is a high - voltage vehicle interface.

10. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the high - voltage power - consuming devices of the vehicle (100) include a fan (32), a coolant pump (34) or a compressor (36).

11. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the high - voltage junction box (20) includes a connection interface (22c) for electrical connection to an auxiliary power - consuming device (120).

12. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the high - voltage vehicle interface (110) is located outside the high - voltage junction box (2).

13. The vehicle fuel cell assembly (1) according to any one of the preceding claims, wherein the high - voltage junction box (20) is arranged adjacent to the fuel cell stack (10).

14. A vehicle (100), the vehicle comprising the vehicle fuel cell assembly (1) according to any one of the preceding claims.

15. The vehicle (100) according to claim 14, wherein the vehicle is a heavy vehicle (100) including a cockpit or a driver's cab, and wherein the vehicle fuel cell assembly (1) is located below the cockpit, i.e., at the front of the heavy vehicle.

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