Solid oxide fuel cell stack connecting device

Abstract

The utility model belongs to the technical field of connecting devices, and particularly relates to a solid oxide fuel cell stack connecting device which comprises a first connecting frame, a second connecting frame and a fuel cell stack body assembled in the first connecting frame and the second connecting frame. According to the utility model, the screw rod, the screw sleeve and the first connecting frame are matched, so that the position of the fuel cell stack body can be adjusted, the deviation caused by processing errors is solved, the hole positions are aligned to the same vertical line, and the connection is convenient. Meanwhile, the threaded rod, the fixing block and the limiting plate are combined, so that the fuel cell stack body is stably fixed, convenience is provided for adjustment, movement is prevented, accurate connection of hole sites is ensured, and the connection stability and efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to connecting device technical field, concretely relates to a solid oxide fuel cell stack connecting device. BACKGROUND

[0002] At present, solid oxide fuel cells are mainly applied to small household cogeneration projects, and have not yet been applicable to large power stations, which is attributed to their inherent defects, including high working temperature, long start-up time, strict material requirements, sealing problems and high component manufacturing cost. In order to realize a high-power power generation system, multiple solid oxide fuel cell stacks need to be integrated to build a stack module.

[0003] However, during the integration process, the stacking of multiple fuel cell stacks can cause hole position errors. These errors are generated from two aspects: one is the manufacturing precision problem of the fuel cell stack product itself, and the other is the machining error of the fixing device used to cooperate with the stack module. These errors can all cause difficulty in connecting the fuel cell stacks. In view of this, we provide a solid oxide fuel cell stack connecting device. SUMMARY

[0004] The utility model aims at providing a solid oxide fuel cell stack connecting device, aiming at solving the problem in the prior art that, during the integration process, the stacking of multiple fuel cell stacks can cause hole position errors. These errors are generated from two aspects: one is the manufacturing precision problem of the fuel cell stack product itself, and the other is the machining error of the fixing device used to cooperate with the stack module. These errors can all cause difficulty in connecting the fuel cell stacks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a solid oxide fuel cell stack connecting device, comprising a first connecting frame, a second connecting frame and a fuel cell stack body assembled inside the first connecting frame and the second connecting frame, a mounting groove is formed on the top surface of the second connecting frame, a lead screw is assembled inside the mounting groove, a bearing is installed at one end of the lead screw, and a lead sleeve is threadedly connected to the surface of the lead screw.

[0006] As a preferred solid oxide fuel cell stack connecting device of the utility model, the top end of the lead sleeve is connected to the bottom end of the first connecting frame, and the first connecting frame is slidably connected between the lead sleeve and the second connecting frame.

[0007] As a preferred solid oxide fuel cell stack connecting device of the utility model, the mounting groove and the lead sleeve are adapted to be "convex" in shape, and the lead sleeve is slidably connected between the mounting groove and the second connecting frame.

[0008] As the solid oxide fuel cell stack connecting device of the utility model preferably, the screw rod is rotatably connected in the installation groove through the bearing.

[0009] As the solid oxide fuel cell stack connecting device of the utility model preferably, the outer side wall of both ends of the first connecting frame and the second connecting frame is equipped with the threaded rod, the inner side wall of both ends of the first connecting frame and the second connecting frame is equipped with the placing groove, and the end of the threaded rod is equipped with the fixed block.

[0010] As the solid oxide fuel cell stack connecting device of the utility model preferably, the size of the fixed block and the placing groove is adapted, and the threaded reciprocating motion is formed between the fixed block, the first connecting frame and the second connecting frame through the threaded rod.

[0011] As the solid oxide fuel cell stack connecting device of the utility model preferably, the threaded groove is equipped in one end of the first connecting frame and the second connecting frame, the adjusting rod is threadedly connected in the threaded groove, the limit plate is threadedly connected to the surface of the adjusting rod, and the thread is equipped on the surface of the adjusting rod.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model skillfully utilizes the cooperation mechanism between the screw rod, the screw sleeve and the first connecting frame, can drive the first connecting frame and the fuel cell stack body assembled in it to adjust the position.This design effectively solves the position deviation problem of the fuel cell stack body caused by the machining error, makes the hole positions of the two fuel cell stack bodies easily aligned on the same vertical line, thereby facilitating the connection.In addition, through the combination of the threaded rod and the fixed block, and with the use of the limit plate, the fuel cell stack body can be stably fixed in the first connecting frame and the second connecting frame.This fixing mode not only provides great convenience for the adjustment process, but also effectively prevents the movement of the fuel cell stack body during the adjustment process, ensures the accurate connection of the hole positions, and significantly improves the stability and efficiency of the connection. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0015] Figure 1 It is the main body assembly structure schematic view of the utility model;

[0016] Figure 2 It is the main body structure schematic view of the utility model;

[0017] Figure 3The second connecting frame structure schematic view of the utility model is shown in the figure.

[0018] Figure 4 The first connecting frame structure schematic view of the utility model is shown in the figure.

[0019] In the figure: 1, first connecting frame; 2, second connecting frame; 3, fuel cell stack body; 4, screw rod; 5, bearing; 6, screw sleeve; 7, threaded rod; 8, fixed block; 9, adjusting rod; 10, limiting plate; 11, placing groove; 12, threaded groove; 13, mounting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model. Embodiment one

[0021] Please refer to Figures 1-4 The utility model provides the following technical scheme: a solid oxide fuel cell stack connecting device, including first connecting frame 1, second connecting frame 2 and fuel cell stack body 3 assembled inside first connecting frame 1 and second connecting frame 2, the top surface of second connecting frame 2 is equipped with mounting groove 13, the inside of mounting groove 13 is assembled with screw rod 4, one end of screw rod 4 is equipped with bearing 5, the surface of screw rod 4 is connected with screw sleeve 6.

[0022] In the preferred embodiment, the top end of the screw sleeve 6 is connected to the bottom end of the first connecting frame 1, and the first connecting frame 1 is connected to the second connecting frame 2 through the screw sleeve 6.

[0023] In the preferred embodiment, the mounting groove 13 and the screw sleeve 6 are adapted to form a "convex" shape, and the screw sleeve 6 is connected to the second connecting frame 2 through the mounting groove 13.

[0024] In the preferred embodiment, the screw rod 4 is rotatably connected to the inside of the mounting groove 13 through the bearing 5.

[0025] In the preferred embodiment, threaded rods 7 are installed on the outer side walls of both ends of the first connecting frame 1 and the second connecting frame 2, placing grooves 11 are formed on the inner side walls of both ends of the first connecting frame 1 and the second connecting frame 2, and fixed blocks 8 are installed on the ends of the threaded rods 7.

[0026] In the preferred embodiment, the fixed blocks 8 are adapted to the size of the placing grooves 11, and the fixed blocks 8 are connected to the first connecting frame 1 and the second connecting frame 2 through the threaded rods 7 to form threaded reciprocating motion.

[0027] In the preferred embodiment, the first connecting frame 1 and one end of the second connecting frame 2 are provided with threaded grooves 12, and the threaded grooves 12 are internally threaded with adjusting rods 9. The surface of the adjusting rods 9 is threaded with limit plates 10, and the surface of the adjusting rods 9 is provided with threads.

[0028] In the embodiment, when the fuel cell stack body 3 is placed inside the first connecting frame 1 and the second connecting frame 2, the hole position deviation problem caused by machining errors is often encountered, which brings challenges to the connection work. The connecting device is composed of the first connecting frame 1 and the second connecting frame 2.

[0029] To solve this problem, we can rotate the lead screw 4 to make it rotate smoothly in the mounting groove 13 along the inner ring of the bearing 5. At the same time, the lead sleeve 6 will move along the thread track on the surface of the lead screw 4, and drive the first connecting frame 1 to slide smoothly on the top end of the second connecting frame 2. This operation can flexibly adjust the left and right positions of the first connecting frame 1, and ensure that the hole position of the fuel cell stack body 3 can be accurately aligned, thereby greatly simplifying the connection process.

[0030] In addition, by rotating the threaded rod 7, we can drive the fixed block 8 to slowly move out from the placement groove 11 until it is close to and clamps the front and rear side walls of the fuel cell stack body 3, achieving a stable fixing effect.

[0031] Then, the limit plate 10 can be rotated and lowered along the threads on the surface of the adjusting rod 9 to form an effective limiting effect. When the fuel cell stack body 3 is placed inside the first connecting frame 1 and the second connecting frame 2, the limit plate 10 can ensure that one end of the fuel cell stack body 3 remains in alignment, which not only facilitates our intuitive observation of the hole position deviation, but also guides us to accurately adjust the position.

[0032] In another embodiment, the operation process is as follows: first, we adjust the limit plate 10 to ensure that it is in the appropriate position; then, use the fixed block 8 to stably fix the fuel cell stack body 3 inside the first connecting frame 1 and the second connecting frame 2; finally, move and adjust the position of the first connecting frame 1 by rotating the lead screw 4 until the hole position of the fuel cell stack body 3 is completely aligned, thereby successfully realizing the connection of the fuel cell stack body 3.

[0033] It is worth noting that the movement of the fixed block 8 through the position of the threaded rod 7 can form the front and rear movement of the fuel cell stack body 3, thereby facilitating the adjustment of the hole position for connection.

[0034] In summary, by using the cooperation of the screw rod 4, the screw sleeve 6 and the first connecting frame 1, the position of the fuel cell stack body 3 can be adjusted, the deviation caused by the machining error is solved, the hole positions are aligned to the same vertical line, and the connection is facilitated. Meanwhile, the combination of the threaded rod 7, the fixed block 8 and the limiting plate 10 stably fixes the fuel cell stack body 3, provides convenience for adjustment, prevents movement, ensures accurate connection of the hole positions, and significantly improves the connection stability and efficiency.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A solid oxide fuel cell stack connecting device, comprising a first connecting frame (1), a second connecting frame (2) and a fuel cell stack body (3) assembled inside the first connecting frame (1) and the second connecting frame (2), characterized in that: The top surface of the second connecting frame (2) is provided with a mounting groove (13); The inside of the mounting groove (13) is equipped with a lead screw (4), one end of the lead screw (4) is equipped with a bearing (5), and the surface of the lead screw (4) is screw-connected with a lead sleeve (6).

2. A solid oxide fuel cell stack connection device according to claim 1, characterised in that: The top end of the lead sleeve (6) is connected with the bottom end of the first connecting frame (1), and the first connecting frame (1) is slidably connected with the second connecting frame (2) through the lead sleeve (6).

3. A solid oxide fuel cell stack connection device according to claim 1, characterised in that: The mounting groove (13) and the lead sleeve (6) are adapted to be "convex" shape, and the lead sleeve (6) is slidably connected with the second connecting frame (2) through the mounting groove (13).

4. A solid oxide fuel cell stack connection device according to claim 1, characterised in that: The lead screw (4) is rotatably connected inside the mounting groove (13) through the bearing (5).

5. A solid oxide fuel cell stack connection device according to claim 1, characterised in that: The outer side wall of the first connecting frame (1) and the second connecting frame (2) is equipped with a threaded rod (7), and the inner side wall of the first connecting frame (1) and the second connecting frame (2) is provided with a placing groove (11), and the end of the threaded rod (7) is equipped with a fixed block (8).

6. A solid oxide fuel cell stack connection device according to claim 5, characterised in that: The size of the fixed block (8) and the placing groove (11) is matched, and the fixed block (8) is screw reciprocated with the first connecting frame (1) and the second connecting frame (2) through the threaded rod (7).

7. A solid oxide fuel cell stack connection device according to claim 1, characterised in that: One end of the first connecting frame (1) and the second connecting frame (2) is provided with a threaded groove (12), the inside of the threaded groove (12) is screw-connected with an adjusting rod (9), the surface of the adjusting rod (9) is screw-connected with a limiting plate (10), and the surface of the adjusting rod (9) is provided with a screw.

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