Fuel cell system

Abstract

The utility model relates to the field of fuel cells, in particular to a fuel cell system. Comprising a shell and an electric pile arranged in the shell, the rear end of the shell is open, and the shell comprises a front end face, a left end face, a right end face, an upper end face, a lower end face and a connecting plate connected with an electric pile, two ends of the left end face, the right end face, the upper end face and the lower end face are respectively connected with the front end face and the connecting plate; an interface is formed in the front end surface; a guide column is arranged in the shell; the electric pile comprises a pile core and a rear end plate, the reactor core is arranged in the shell, and the rear end plate is detachably connected with an end opening of the shell; the front end face, the left end face, the right end face, the upper end face, the lower end face and the connecting plate are integrally formed to form the shell, only the electric pile needs to be arranged in the shell in the assembling process, the assembling step of all the end faces is omitted, a large amount of installation time is saved, and meanwhile the integrally-formed shell has more excellent structural stability and sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell field especially relates to a fuel cell system. BACKGROUND

[0002] The main working principle of fuel cell is the chemical reaction of hydrogen and oxygen, and electric charge and heat are generated in the process. The stack is a key component of the fuel cell, and in general, the stack is packaged inside the fuel cell. The stack generally has 6 gas-liquid channels, namely hydrogen in, hydrogen out, air in, air out, water in, and water out. Hydrogen in and hydrogen out generally refer to the hydrogen inlet and outlet channels; air in and air out generally refer to the air inlet and outlet channels, and water in and water out generally refer to the cooling liquid inlet and outlet channels.

[0003] The shell of the fuel cell is mostly assembled by 6 separate structural parts, but many fasteners are needed for fastening during the packaging process of the 6 faces, and glue is also needed for auxiliary sealing. Such a packaging process greatly increases the labor, material and time costs. Moreover, the shell structure assembled by 6 separate structural parts also has relatively poor stability. SUMMARY

[0004] The utility model aims at the deficiency in the prior art and provides a five-end integrated fuel cell system.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A fuel cell system is provided, comprising: a shell and a stack arranged in the shell; the shell has an open rear end, and comprises an integrally formed front end face, left end face, right end face, upper end face, lower end face and connecting plate connected with the stack; the left end face, right end face, upper end face and lower end face are connected with the front end face and connecting plate at both ends respectively; an interface is formed on the front end face; a guide column is arranged in the shell.

[0007] The stack comprises a core and a rear end plate; the core is arranged in the shell, and the rear end plate is detachably connected with the end opening of the shell.

[0008] Preferably, the interface on the front end face comprises a stack water outlet connector mounting sealing area, a stack air outlet connector mounting sealing area, a first disc spring pressing block adjusting cover plate sealing area, a second disc spring pressing block adjusting cover plate sealing area, a stack water inlet connector mounting sealing area and a stack air inlet connector mounting sealing area; a sealing groove matched with the interface is formed at the interface; a plurality of threaded holes are formed on the periphery of the interface on the front end face.

[0009] Preferably, a first through groove is formed on the left end face, and a sealing groove matched with the first through groove is formed at the first through groove; and a plurality of threaded holes are formed on the left end face around the first through groove.

[0010] Preferably, a second through groove is formed in the middle of the right end face, and a sealing groove matched with the second through groove is formed at the second through groove; and a plurality of threaded holes are formed on the right end face around the second through groove.

[0011] Preferably, a plurality of mark areas are formed on the right end face.

[0012] Preferably, a third through groove is formed on the upper end face, and a sealing groove matched with the third through groove is formed at the third through groove; and a plurality of threaded holes are formed on the upper end face around the third through groove.

[0013] Preferably, an air inlet and an air outlet are formed on the lower end face, and the air inlet is connected with a sweeping pipeline.

[0014] Preferably, the connecting plate is opened in the middle, and a sealing groove matched with the opening is formed at the opening; and a plurality of threaded holes are formed on the connecting plate around the opening.

[0015] Preferably, a hydrogen inlet and a hydrogen outlet are formed on the rear end plate.

[0016] Compared with the prior art, the above technical scheme has the following technical effects:

[0017] The front end face, the left end face, the right end face, the upper end face, the lower end face and the connecting plate are integrally formed to form a shell, and only the electric pile needs to be assembled into the shell, so that the assembling steps of the end faces are omitted, a large amount of installation time is saved, and meanwhile, the integrally formed shell has more excellent structural stability and sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a basic structure schematic view of a shell in an embodiment of the present application;

[0019] Figure 2 FIG. 2 is another perspective view of the shell in the embodiment of the present application.

[0020] The reference signs in the drawings include:

[0021] Front end face 1; water outlet joint mounting sealing area 11 of stack; air outlet joint mounting sealing area 12 of stack; first disc spring pressing block adjusting cover plate sealing area 13; second disc spring pressing block adjusting cover plate sealing area 14; water inlet joint mounting sealing area 15 of stack; air inlet joint mounting sealing area 16 of stack; Left end face 2; First through slot 21; Right end face 3; Second through slot 31; Mark area 32; Upper end face 4; Third through slot 41; Lower end face 5; Connecting plate 6. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] The present application will be further described below with reference to the drawings and specific embodiments, but is not limited to the present application.

[0025] EMBODIMENT

[0026] The present embodiment provides a fuel cell system, comprising: an open-ended shell and a stack arranged in the shell;

[0027] The shell comprises: an integrally formed front end face 1, a left end face 2, a right end face 3, an upper end face 4, a lower end face 5, and a connecting plate 6 connected with the stack; the two ends of the left end face 2, the right end face 3, the upper end face 4 and the lower end face 5 are connected with the front end face 1 and the connecting plate 6 respectively; a circular interface is formed on the front end face 1, the interface comprises: a water outlet joint mounting sealing area 11 of stack, an air outlet joint mounting sealing area 12 of stack, a first disc spring pressing block adjusting cover plate sealing area 13, a second disc spring pressing block adjusting cover plate sealing area 14, a water inlet joint mounting sealing area 15 of stack and an air inlet joint mounting sealing area 16 of stack; a sealing groove matched with the interface is formed at the interface; a plurality of threaded holes are formed on the periphery of the interface on the front end face 1; a rectangular opening is formed in the middle of the connecting plate 6, and a sealing groove matched with the opening is arranged at the opening; a plurality of threaded holes are formed on the periphery of the opening on the connecting plate 6;

[0028] The left end surface 2 is provided with a rectangular first through slot 21 for maintaining the CVM, and a sealing groove is arranged at the first through slot 21; a plurality of threaded holes are arranged on the periphery of the first through slot 21; the right end surface 3 is provided with a rectangular second through slot 31 in the middle for maintaining the anode copper bar, and a sealing groove is arranged at the second through slot 31; a plurality of threaded holes are arranged on the periphery of the second through slot 31; a plurality of mark areas 32 are arranged on the right end surface 3 for mounting nameplates and manufacturer marks;

[0029] The upper end surface 4 is provided with an L-shaped third through slot 41 for mounting the wall-penetrating terminal and maintaining the cathode copper bar, and a sealing groove is arranged at the third through slot 41; a plurality of threaded holes are arranged on the periphery of the third through slot 41; the lower end surface 5 is provided with an air inlet and an air outlet, and the air inlet is connected with a sweeping pipeline;

[0030] The shell is further provided with guide columns matched with the side wall of the stack for guiding the movement of the stack;

[0031] The stack comprises a core and a rear end plate; the core is arranged in the shell, and the rear end plate is detachably connected with the end opening of the shell; the rear end plate is provided with a hydrogen inlet and a hydrogen outlet.

[0032] In use, the operator aligns the guide groove on the side of the core with the guide column in the shell, pushes the core into the shell until the rear end plate abuts against the connecting plate 6 of the shell, and then fixes the stack and the shell through the cooperation of the fasteners and the threaded holes; after the fixing is completed, the interfaces on the front end surface 1 are communicated with the corresponding pipelines (such as air pipelines), the hydrogen inlet and the hydrogen outlet on the rear end plate are communicated with the corresponding hydrogen pipelines, and the air inlet and the air outlet on the lower end surface 5 are communicated with the corresponding sweeping pipelines, so that the installation is completed; if the stack in the shell needs to be maintained, different parts can be maintained through the through slots on the end surfaces.

[0033] As described above, the front end surface, the left end surface, the right end surface, the upper end surface, the lower end surface and the connecting plate are integrally formed to form the shell, so that when the stack is assembled into the shell, the assembly steps of the end surfaces are omitted, a large amount of installation time is saved, and the integrally formed shell has excellent structural stability and sealing performance.

[0034] The above description is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application; for those skilled in the art, it should be realized that any equivalent replacement and obvious changes made according to the content of the present application can be included in the protection scope of the present application.

Claims

1. A fuel cell system comprising: A shell and a stack arranged in the shell; characterized in that the shell is open at the rear end, and comprises a front end face (1), a left end face (2), a right end face (3), an upper end face (4), a lower end face (5) and a connecting plate (6) connected with the stack; the left end face (2), the right end face (3), the upper end face (4) and the lower end face (5) are connected with the front end face (1) and the connecting plate (6) respectively; an interface is arranged on the front end face (1); a guide column is arranged in the shell. The stack comprises a core and a rear end plate; the core is arranged in the shell, and the rear end plate is detachably connected with the end opening of the shell.

2. The fuel cell system of claim 1, wherein The interface on the front end face (1) comprises a stack water outlet connector mounting sealing area (11), a stack air outlet connector mounting sealing area (12), a first disc spring pressing block adjusting cover plate sealing area (13), a second disc spring pressing block adjusting cover plate sealing area (14), a stack water inlet connector mounting sealing area (15) and a stack air inlet connector mounting sealing area (16); a sealing groove matched with the interface is arranged at the interface; a plurality of threaded holes are arranged on the periphery of the interface on the front end face (1).

3. The fuel cell system of claim 1, wherein A first through groove (21) is arranged on the left end face (2), and a sealing groove matched with the first through groove (21) is arranged at the first through groove (21); a plurality of threaded holes are arranged on the periphery of the first through groove (21) on the left end face (2).

4. The fuel cell system of claim 1, wherein A second through groove (31) is arranged in the middle of the right end face (3), and a sealing groove matched with the second through groove (31) is arranged at the second through groove (31); a plurality of threaded holes are arranged on the periphery of the second through groove (31) on the right end face (3).

5. The fuel cell system of claim 1, wherein A plurality of mark areas (32) are arranged on the right end face (3).

6. The fuel cell system of claim 1, wherein A third through groove (41) is arranged on the upper end face (4), and a sealing groove matched with the third through groove (41) is arranged at the third through groove (41); a plurality of threaded holes are arranged on the periphery of the third through groove (41) on the upper end face (4).

7. The fuel cell system of claim 1, wherein An air inlet and an air outlet are arranged on the lower end face (5), and a sweeping pipeline is connected with the air inlet.

8. The fuel cell system of claim 1, wherein The connecting plate (6) is open at the middle, and a sealing groove matched with the opening is arranged at the opening; a plurality of threaded holes are arranged on the periphery of the opening on the connecting plate (6).

9. The fuel cell system of claim 1, wherein A hydrogen inlet and a hydrogen outlet are arranged on the rear end plate.

Images