Abstract
The invention relates to a fuel cell system (100) of a motor vehicle (200), wherein the fuel cell system (100) comprises: at least one fuel cell stack (90a, 90b), and a housing (1) with a housing body (10) for receiving the at least one fuel cell stack (90a, 90b), wherein the housing body (10) has: at least one motor vehicle securing section (22a, 22b), at least one system module securing section (32a, 32b, 32c, 32d) on the exterior of a housing wall (12, 13, 14, 15, 16, 17) of the housing body (10) for arranging at least one system module (50a, 50b, 50c, 50d), and the at least one system module (50a, 50b, 50c, 50d), wherein the at least one system module (50a, 50b, 50c, 50d) is connected to the at least one fuel cell stack (90a, 90b) so as to communicate therewith.
Claims
1. A fuel cell system (100) of a motor vehicle (200), wherein the fuel cell system (100) comprises: a. at least one fuel cell stack (90a, 90b) having a plurality of fuel cells, b. a housing (1) having a housing body (10) for receiving and protecting the at least one fuel cell stack (90a, 90b), wherein the housing body (10) further comprises: i. at least one motor vehicle securing section (22a, 22b) for arranging the housing body (10) on a body (202) of the motor vehicle (200), ii. at least one system module securing section (32a, 32b, 32c, 32d) on an exterior of a housing wall (12, 13, 14, 15, 16, 17) of the housing body (10) for arranging at least one system module (50a, 50b, 50c, 50d), c. the at least one system module (50a, 50b, 50c, 50d) having a system module counter-securing section (62a, 62b, 62c, 62d), wherein the at least one system module (50a, 50b, 50c, 50d) having the system module counter-securing section (62a, 62b, 62c, 62d) is arranged on the at least one system module securing section (32a, 32b, 32c, 32d) of the housing body (10) at least partially on the exterior of the housing wall (12, 13, 14, 15, 16, 17) of the housing body (10), wherein the at least one system module (50a, 50b, 50c, 50d) is connected to the at least one fuel cell stack (90a, 90b) so as to communicate therewith.
2. The fuel cell system (100) according to claim 1, wherein the housing body (10) of the housing (1) is at least partially rigid and/or electrically insulating.
3. The fuel cell system (100) according to claim 1, wherein the housing body (10) of the housing (1) forms a support structure, for the at least one system module (50a, 50b, 50c, 50d) arranged on the exterior of the housing wall (12, 13, 14, 15, 16, 17).
4. The fuel cell system (100) according to claim 1, wherein the at least one system module (50a, 50b, 50c, 50d) having the system module counter-securing section (62a, 62b, 62c, 62d) is releasably arranged on the at least one system module securing section (32a, 32b, 32c, 32d) of the housing body (10).
5. The fuel cell system (100) according to claim 1, wherein the at least one system module (50a, 50b, 50c, 50d) comprises at least one of the following modules: a fluid supply module fluidly connected to the at least one fuel cell stack (90a, 90b) for supplying a fluid to the at least one fuel cell stack (90a, 90b), a fluid drainage module fluidly connected to the at least one fuel cell stack (90a, 90b) for draining a fluid from the fuel cell stack (90a, 90b), an electrical module electrically connected to the at least one fuel cell stack (90a, 90b) for communicating data and/or transmitting an electrical energy generated by the at least one fuel cell stack (90a, 90b) to the motor vehicle.
6. The fuel cell system (100) according claim 1, wherein on at least one system module securing section (32a, 32b, 32c, 32d) on the exterior of a further housing wall (12, 13, 14, 15, 16, 17) of the housing body (10), at least one further system module (50a, 50b, 50c, 50d) of the fuel cell system (100) is at least partially arranged, being arranged on the exterior of the housing body (10) and having a system module counter-securing section (62a, 62b, 62c, 62d.
7. The fuel cell system (100) according claim 1, wherein on at least one further system module securing section (32a, 32b, 32c, 32d) on the exterior of the housing wall (12, 13, 14, 15, 16, 17) of the housing body (10), at least one further system module (50a, 50b, 50c, 50d) of the fuel cell system (100) is at least partially arranged, being arranged on an exterior of the housing body (10) and having a system module counter-securing section (62a, 62b, 62c, 62d).
8. The fuel cell system (100) according to claim 1, wherein at least a portion of at least one of the housing walls (12, 13, 14, 15, 16, 17) of the housing body (10) forms a stack end plate (92a, 92b) and/or an adapter plate (93a, 93b) of the at least one fuel cell stack (90a, 90b).
9. The fuel cell system (100) according to claim 8, wherein the housing wall (12, 13, 14, 15, 16, 17) of the housing body (10) comprising the at least one system module securing section (32a, 32b, 32c, 32d) forms the stack end plate (92a, 92b) and/or the adapter plate (93a, 93b) of the at least one fuel cell stack (90a, 90b).
10. The fuel cell system (100) according to claim 1, wherein at least two fuel cell stacks (90a, 90b) are received and protected in the housing body (10) of the fuel cell system (100) next to one another, wherein at least a portion of at least one of the housing walls (12, 13, 14, 15, 16, 17) of the housing body (10) forms a stack end plate (92a, 92b) and/or an adapter plate (93a, 93b) for the at least two fuel cell stacks (90a, 90b).
11. The fuel cell system (100) according to claim 10, wherein the at least two fuel cell stacks (90a, 90b) received and protected in the housing body (10) of the fuel cell system (100) are spatially separated from one another.
12. A motor vehicle (200) having a body (202), wherein the motor vehicle (200) comprises a fuel cell system (100) according to claim 1, and wherein the housing body (10) of the housing (1) of the fuel cell system (100) having the at least one motor vehicle securing section (22a, 22b) is arranged on the body (202) of the motor vehicle (200).
13. The fuel cell system according to claim 6, wherein the housing wall (12, 13, 14, 15, 16, 17) and the one further housing wall (12, 13, 14, 15, 16, 17) are opposite one another.
14. The fuel cell system according to claim 11, wherein the at least two fuel cell stacks (90a, 90b) are spatially separated from one another by a partition wall (11) of the housing (1).
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The following are shown schematically:
[0035] FIG. 1 in a top plan view, an embodiment of a fuel cell system 100 according to the invention,
[0036] FIG. 2 in a front view in a vertical section, the embodiment of a fuel cell system 100 according to the invention from FIG. 1,
[0037] FIG. 3 in a top plan view, a further embodiment of a fuel cell system 100 according to the invention,
[0038] FIG. 4 in a front view in a vertical section, the further embodiment of a fuel cell system 100 according to the invention from FIG. 3,
[0039] FIG. 5 in a side view in a vertical section, a further embodiment of a fuel cell system 100 according to the invention,
[0040] FIG. 6 in a side view in a vertical section, a further embodiment of a fuel cell system 100 according to the invention,
[0041] FIG. 7 in a top plan view, an embodiment of a motor vehicle 200 according to the invention,
[0042] FIG. 8 in a top plan view, an embodiment of a motor vehicle 200 according to the invention, and
[0043] FIG. 9 in a front view, the embodiment of a motor vehicle 200 according to the invention from FIG. 7.
DETAILED DESCRIPTION
[0044] In the following figures, identical reference numbers are used for the same technical features of different embodiment examples.
[0045] FIG. 1 and FIG. 2 show in a top plan view or in a front view in a vertical section (see section axis A-A in FIG. 1) an embodiment of a fuel cell system 100 according to the invention, having a fuel cell stack 90a in a housing body 10 of a housing 1. The housing body 10 is configured in an exemplary box-shaped fashion and has a system module securing section 32a on the exterior of a housing wall 12. A system module 50a is arranged with a system module counter-securing section 62a on the fastening portion 32a on the exterior of the housing wall 12 to the housing body 10 and is connected to the fuel cell stack 90a (not shown) so as to communicate therewith. Furthermore, the housing body 10 of the housing 1 comprises a motor vehicle securing section 22a for arrangement on a body 202 of a motor vehicle 200. By arranging the system module 50a on the exterior of the housing body 10, the fuel cell system 100 can be particularly compact and, furthermore, the convective transport of thermal energy, in particular the natural convection, of the at least one system module 50a and/or the housing body 10 can be particularly advantageous.
[0046] FIG. 3 and FIG. 4 show a further embodiment of a fuel cell system 100 according to the invention in a top view or in a front view in a vertical section (see section axis C-C in FIG. 3). The fuel cell system 100, by way of example, comprises a box-shaped housing body 10 of the housing 1 with a fuel cell stack 90a in the internal space of the housing body 10. The box-shaped housing body 10 comprises six housing walls 12, 13, 14, 15, 16, 17, wherein four housing walls 12, 14, 16 and 17 are in particular side housing walls and two housing walls 13 and 15 are in particular a bottom housing wall or a top housing wall opposite the bottom housing wall. The system module 50a and the system module 50b are each arranged with a system module counter-securing section 62a and 62b, respectively, on a system module securing section 32a and 32b, respectively, on the exterior of the housing wall 12. The system module 50b at least partially projects over the housing body 10. Furthermore, the system module 50c is arranged with a system module counter-securing section 62c on a system module securing section 32c on the exterior of the housing wall 13, in particular on the bottom housing wall. Furthermore, the system module 50d is arranged with a system module counter-securing section 62d on a system module securing section 32d on the exterior of the housing wall 14. The housing body 10 of the fuel cell system 100 further comprises a motor vehicle securing section 22b and 22a on the exterior of two opposed housing walls 16 and 17.
[0047] FIG. 5 and FIG. 6 show in a side view in a vertical section (see section axis B-B in FIG. 1) a further embodiment of a fuel cell system 100 according to the invention. In FIG. 5, two fuel cell stacks 90a, 90b are arranged or received in a common housing body 10 of the housing 1 of the fuel cell system 100. Furthermore, a system module 50a having a system module counter-securing section 62a is arranged on the system module securing section 32a of the housing body 10 on the exterior of the housing wall 13, in particular on a bottom housing wall, of the housing body 10, wherein the system module 50a is connected to at least one fuel cell stack 90a, 90b so as to communicate therewith. It is conceivable that, for a plurality of fuel cell stacks 90a, 90b, separate system modules 50a, in particular separate, functionally identical system modules 50a, are arranged on the housing body 10 for each fuel cell stack 90a, 90b. These separate system modules 50a, in particular these separate, functional system modules 50a, are each separately connected to the respective fuel cell stack 90a, 90b of the plurality of fuel cell stacks 90a, 90b so as to communicate therewith. Furthermore, in FIG. 5, the housing wall 13 respectively forms a stack end plate 92a and 92b and an adapter plate 93a and 93b of the two fuel cell stacks 90a and 90b. In particular, the stack end plates 92a and 92b and the adapter plates 93a and 93b are integrally formed with the housing wall 13 of the housing body 10 of the housing 1 of the fuel cell system 100. In other words, the stack end plate 92a and 92b and the adapter plate 93a and 93b of the two fuel cell stacks 90a and 90b form the housing wall 13 of the housing body 10. The stack end plates 92a, 92b and the adapter plates 93a, 93b are arranged on the further housing walls of the housing body 10 so as to form the housing body 10, e.g. via force-fit connections, in particular via screw connections. As a result, the stack end plates 92a, 92b and the adapter plates 93a, 93b are part of the support structure and thus take on supporting functions. That is to say, the stack end plates 92a, 92b and the adapter plates 93a, 93b can receive and pass on loads. Thus, the fuel cell system 100 can be particularly advantageously stable.
[0048] In FIG. 6, two fuel cell stacks 90a, 90b are arranged or received in a housing body 10 of the housing 1 of the fuel cell system 100. The housing body 10 comprises a partition wall 11 for separating the one fuel cell stack 90a and the one further fuel cell stack 90b. This partition wall 11 is in particular formed by the housing body 10 having a first subhousing body for receiving and protecting the one fuel cell stack 90a and a second subhousing body for receiving and protecting the one further fuel cell stack 90b. The first subhousing body and the second subhousing body are arranged together on the housing body 10. Furthermore, a system module 50a having a system module counter-securing section 62a is arranged on the system module securing section 32a of the housing body 10 on the exterior of the housing wall 13, in particular on a bottom housing wall, of the housing body 10, wherein the system module 50a is connected to the one fuel cell stack 90a so as to communicate therewith. Furthermore, a system module 50b having a system module counter-securing section 62b is arranged on the system module securing section 32b of the housing body 10 on the exterior of the housing wall 13, in particular on a bottom housing wall, of the housing body 10, wherein the system module 50b is connected to the fuel cell stack 90b so as to communicate therewith. Furthermore, in FIG. 6, the housing wall 13 forms a stack end plate 92a and 92b for the two fuel cell stacks 90a and 90b.
[0049] FIG. 7 and FIG. 9 show in a top view or in a front view a further embodiment of a motor vehicle 200 according to the invention, having a fuel cell system 100 according to the invention as already described by way of example in FIG. 1 or FIG. 2. However, the housing body 10 of the fuel cell system 100 has a respective motor vehicle securing section 22b and 22a on the exterior of two opposing housing walls 16 and 17. The housing body 10 is arranged directly on motor vehicle counter-securing sections 204a and 204b of the body 202 of the motor vehicle 200 by way of the motor vehicle securing sections 22a and 22b. The body 202 of the motor vehicle 200 is formed by longitudinal and transverse beams.
[0050] FIG. 8 shows in a top plan view a further embodiment of a motor vehicle 200 according to the invention, having a fuel cell system 100 according to the invention, as shown for example in FIG. 1. However, in FIG. 8, the housing body 10 is in particular formed by a first separate subhousing body 10a for receiving and protecting the at least one fuel cell stack 90a and a second separate subhousing body 10b of the housing 1 of the fuel cell system 100 for receiving and protecting the at least one further fuel cell stack 90b. The first subhousing body 10a and the second subhousing body 10b are screwed together, for example, in order to form the housing body 10 of the housing 1. However, the housing body 10 of the fuel cell system 100 has a respective motor vehicle securing section 22b and 22a on the exterior of two opposing housing walls 16 and 17. The housing body 10 is arranged by means of motor vehicle securing sections 22a and 22b indirectly via connecting elements 70 to motor vehicle counter-securing sections 204a and 204b of the body 202 of the motor vehicle 200. The connecting elements 70 can be beams, in particular cross-beams. Furthermore, the connecting elements 70 can in particular belong to the housing 1. In other words, the housing 1 can comprise the connecting elements 70.
