Fuel cell stack stacking device

Abstract

The fuel cell stack stacking device comprises the backup plate and the side frame, the backup plate is arranged on one side of the fuel cell shell, the side frame is arranged on the backup plate and located at the bottom of the fuel cell shell, and a stack core is added into the fuel cell shell through the end, away from the side frame, of the fuel cell shell. The side frame can load a part of the reactor core, so that the height of the reactor core does not exceed the height of the fuel cell shell, thereby avoiding the problems of scratching and bumping between the reactor core and the fuel cell shell, skewing of the reactor core, poor sealing of the fuel cell and the like in the press-fitting process, and reducing the product quality; according to the fuel cell stack stacking device provided by the utility model, the stack core can be conveniently stacked in the fuel cell shell, so that the stack core is prevented from being rubbed and collided with the shell in the press fitting process, and the problems of skew of the stack core, poor sealing of the fuel cell and the like are solved.

Description

Technical Field

[0001] The utility model belongs to the field of fuel cells. Specifically, the utility model relates to a fuel cell stack stacking device. Background Art

[0002] As one of the important carriers of hydrogen energy application, hydrogen fuel cell vehicles will play a huge demonstration role in the development of the hydrogen energy industry. At present, hydrogen energy has been widely applied in many fields, and hydrogen fuel cells are developing rapidly. There are various sizes and models of fuel cell systems. Since the fuel cell system is a highly integrated product, each sub-module assembly of the fuel cell belongs to a highly integrated component. Especially in the stacking production of the stack product, during the stacking process of the fuel cell stack, the stack core needs to be stacked in the fuel cell housing, and then through press-fitting, the stack core is pressed tightly in the housing. Usually, during the process of stacking the stack core, the gap between the stack cores is too large before press-fitting, resulting in the height of the stack core being higher than the height of the housing, which makes it easy for the stack core to rub against and collide with the fuel cell housing during the press-fitting process, leading to problems such as the stack core being skewed and the fuel cell having poor sealing, reducing the product quality.

[0003] To solve the above problems, Patent Document 220774436U discloses a fuel cell stacking tooling, which includes a base platform, a stacking component, and a positioning component; a first chute extending in the first direction and a second chute extending in the second direction are provided on the base platform; the stacking component includes a bottom cushion block, a bottom end plate, a top end plate, and a pressing structure. In the up and down direction, the fuel cell can be stacked between the bottom end plate and the top end plate; the positioning component includes a slider, a base, a positioning rod, and a fixing member. The slider is slidably fitted in the first chute or the second chute. The slider is fixedly connected to the base. The positioning rod is installed on the base. The fixing member is used to fix the base on the base platform, but it cannot solve the above problems. Summary of the Utility Model

[0004] The utility model is made to solve the above problems, and the purpose is to provide a fuel cell stack stacking device that can facilitate the stacking of the stack core in the fuel cell housing, can avoid the stack core from rubbing against and colliding with the housing during the press-fitting process, and can avoid problems such as the stack core being skewed and the fuel cell having poor sealing. To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] The utility model provides a fuel cell stack stacking device, which has the following characteristics: it includes a backing plate and a side frame. The backing plate is arranged on one side of the fuel cell housing, and the side frame is arranged on the backing plate and is located at the bottom of the fuel cell housing.

[0006] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: the side frame includes a side plate and a fixing plate. One side of the side plate is connected to the backing plate, and the other side of the side plate is connected to the fixing plate.

[0007] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: it further includes a stack core guiding structure, and the stack core guiding structure is uniformly arranged on the backing plate and the side frame.

[0008] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: the stack core guiding structure includes a guiding block and a guiding column arranged on the guiding block, and the guiding blocks are uniformly arranged on the backing plate, the side plate and the fixing plate.

[0009] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: a supporting block is provided on the backing plate, and the supporting block is located on the side of the backing plate close to the fixing plate.

[0010] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: a connecting hole is provided on the backing plate.

[0011] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: a clamping groove is provided on the fixing plate, and the clamping grooves are uniformly arranged on the fixing plate.

[0012] In the fuel cell stack stacking device provided by the present utility model, it may further have the following feature: a limiting protrusion is provided on the side plate.

[0013] The technical effect of the present utility model is as follows: The fuel cell stack stacking device provided by the present utility model includes a backing plate and a side frame. The backing plate is arranged on one side of the fuel cell housing, and the side frame is arranged on the backing plate. The side frame is located at the bottom of the fuel cell housing. The stack core is added into the fuel cell housing through the end of the fuel cell housing far from the side frame. The side frame can hold a part of the stack core, so that the height of the stack core does not exceed the height of the fuel cell housing, thereby avoiding the scraping and bumping between the stack core and the fuel cell housing during the pressing process, and avoiding problems such as the stack core being skewed and the fuel cell having poor sealing, and improving the product quality.

[0014] Therefore, the fuel cell stack stacking device provided by the present utility model can facilitate the stacking of the stack core in the fuel cell housing, avoid the scraping and bumping between the stack core and the housing during the pressing process, and avoid problems such as the stack core being skewed and the fuel cell having poor sealing. Description of the Drawings

[0015] This specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1It is a schematic structural diagram of a fuel cell stack stacking device in an embodiment of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the connection between the fuel cell stack stacking device and the fuel cell housing in an embodiment of the present utility model;

[0018] Figure 3 It is a schematic structural diagram of the fuel cell stack stacking device and the fuel cell housing being clamped by a flipping gripper in an embodiment of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of the fuel cell stack stacking device and the fuel cell housing in a flipped state on a press in an embodiment of the present utility model.

[0020] The markings in the figure are: 1 - fuel cell housing, 2 - connecting piece, 3 - first jaw, 4 - second jaw, 10 - backing plate, 11 - support block, 12 - connecting hole, 20 - side frame, 21 - side plate, 211 - limiting protrusion, 22 - fixing plate, 221 - clamping groove, 30 - stack core guiding structure, 31 - guiding block, 32 - guiding column. Detailed implementation manners

[0021] Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation manners of the present utility model will be further described in detail. The purpose is to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present utility model, and to facilitate its implementation.

[0022] Figure 1 It is a schematic structural diagram of a fuel cell stack stacking device in an embodiment of the present utility model; Figure 2 It is a schematic structural diagram of the connection between the fuel cell stack stacking device and the fuel cell housing in an embodiment of the present utility model.

[0023] As Figure 1 and Figure 2 shown, the fuel cell stack stacking device provided by the present utility model includes a backing plate 10 and a side frame 20. The backing plate 10 is arranged on one side of the fuel cell housing 1, the side frame 20 is arranged on the backing plate 0, the side frame 20 is located at the bottom of the fuel cell housing 1, and the stack core is added into the fuel cell housing 1 through the end of the fuel cell housing 1 far from the side frame 20. The side frame 20 can load a part of the stack core, so that the height of the stack core does not exceed the height of the fuel cell housing 1, thereby avoiding the scraping and bumping between the stack core and the fuel cell housing during the pressing process, avoiding problems such as the stack core skewing and poor fuel cell sealing, and improving the product quality.

[0024] The side frame 20 includes a side plate 21 and a fixing plate 22. One side of the side plate 21 is connected to the back plate 10, and the other side of the side plate 21 is connected to the fixing plate 22. The two side plates 21 are respectively arranged on both sides of the fixing plate 22 and on both sides of the back plate 10, and the height of the back plate 10 is greater than the height of the fixing plate 22. The sizes of the side plate 21 and the fixing plate 22 are adapted to the fuel cell housing 1, so that the bottom of the fuel cell housing 1 is connected to the side frame 20, and one side of the fuel cell housing 1 is connected to the back plate 10, improving the structural stability, effectively fixing the fuel cell housing 1, preventing the fuel housing 1 from shifting during the core stacking process, and improving the quality of the core stacking.

[0025] The back plate 10 is provided with a support block 11. The support block 11 is located on the side of the back plate 10 close to the fixing plate 22, and the position of the support block 11 is lower than that of the fixing plate 22 and is located inside the side frame 20. When the fuel cell housing 1 is fixed on the fuel cell stack stacking device, the support block 11 can support the core. When stacking the core into the fuel cell housing 1 from the end of the fuel cell housing 1 away from the side frame 20, the core falls onto the support block 11, and the side frame 20 can limit the core, so that the height after the core is stacked does not exceed the height of the fuel cell housing 1, effectively avoiding the scratching and bumping between the core and the fuel cell housing during the pressing process, and avoiding problems such as core skew and poor fuel cell sealing, improving the product quality.

[0026] The side plate 21 is provided with a limiting protrusion 211. The limiting protrusion 211 abuts against the connecting piece 2 on the fuel cell housing 1. The limiting protrusion 211 can limit the fuel cell housing 1, improving the structural stability, effectively fixing the fuel cell housing 1, preventing the fuel housing 1 from shifting during the core stacking process, and improving the quality of the core stacking.

[0027] The fuel cell stack stacking device provided by the present utility model further includes a stack core guiding structure 30, which is uniformly arranged on the backing plate 10 and the side frame 20. The stack core guiding structure 30 includes a guiding block 31 and a guiding column 32. The guiding column 32 is arranged on the guiding block 31. The guiding blocks 31 are uniformly arranged on the backing plate 10, the side plate 21 and the fixing plate 22. Two guiding blocks 31 are arranged on one side of the fixing plate 22 close to the fuel cell housing 1. Two guiding blocks 31 are arranged on the backing plate 10, corresponding to the two guiding blocks 31 on the fixing plate 22 one by one. Two guiding blocks 31 are respectively arranged on the side plates 21 on both sides of the fixing plate 22, located in the middle of the two side plates 21 respectively. The stack core guiding structure 30 is adapted to the guiding structure in the fuel cell housing 1, so that when stacking the stack core into the fuel cell housing 1, the stack core can pass through the guiding structure in the fuel cell housing 1 and the stack core guiding structure 30 and smoothly fall onto the support block 11, thereby improving the stability of the stack core stacking, avoiding the scraping and bumping between the stack core and the fuel cell housing during the stacking process, avoiding problems such as the stack core skewing and poor fuel cell sealing, and improving the product quality.

[0028] The backing plate 10 is provided with a connection hole 12, and a pin is inserted through the connection hole 12. By inserting the pin through the connection hole 12 and into the fuel cell housing 1, the fuel cell housing 1 and the backing plate 10 can be fastened, facilitating the fixing of the fuel cell housing 1 on the backing plate 10 and the convenient disassembly and separation of the fuel cell housing 1, thereby facilitating the separation of the fuel cell after the stack core is press-fitted and improving the work efficiency.

[0029] Figure 3 It is a schematic structural diagram of the fuel cell stack stacking device in the embodiment of the present utility model and the fuel cell housing being clamped by the flipping gripper.

[0030] The fixing plate 22 is provided with clamping grooves 221, which are uniformly arranged on the fixing plate 22. As Figure 3 shown, when clamping the fuel cell stack stacking device and the fuel cell housing 1 by the fixture, the first jaw 3 of the fixture abuts against one end of the fuel cell housing 1 away from the side frame 20, and the second jaw 4 of the fixture is adapted to the clamping groove 221. The second jaw 4 extends into the clamping groove 221, so that the first jaw 3 and the second jaw 4 can clamp and fix the fuel cell stack stacking device and the fuel cell housing 1, facilitating the completion of the stack core press-fitting process.

[0031] Figure 4 It is a schematic structural diagram of the fuel cell stack stacking device and the fuel cell housing in the flipping state on the press in the embodiment of the present utility model.

[0032] As Figure 4As shown in the figure, when stacking and pressing the core of the fuel cell by the fuel cell stack stacking device provided by the present utility model, first place the bottom of the fuel cell housing 1 on the side frame 21, with the limiting protrusion 211 abutting against the connecting piece 2, and one side of the fuel cell housing 1 abutting against the backing plate 10. Insert the pin into the connecting hole 12 and the fuel cell housing 1 to fix the fuel cell housing 1 in the fuel cell stack stacking device. When stacking the core into the fuel cell housing 1 from the end of the fuel cell housing 1 far away from the side frame 20, the core falls onto the support block 11. After completing the stacking of the core, install the cover plate at the end of the fuel cell housing 1 far away from the side frame 20 to encapsulate the core. After the clamp on the press grips and fixes the fuel cell stack stacking device and the fuel cell housing 1 through the first jaw 3 and the second jaw 4, the clamp drives the fuel cell stack stacking device and the fuel cell housing 1 to flip, turning the side frame 20 above the fuel cell housing 1. The press head of the press enters the interior of the fuel cell stack stacking device through the side frame 21 to compress the core, thus completing the pressing process of the core. The fuel cell stack stacking device provided by the present utility model can maintain the accuracy of the core stacking and pressing processes within the range of ±0.02 mm, effectively improving the reliability and durability of the fuel cell. The fuel cell stack stacking device provided by the present utility model can facilitate the stacking of the core in the fuel cell housing, avoiding the scratching and bumping of the core against the housing during the pressing process, and avoiding problems such as core skew and poor fuel cell sealing.

[0033] Functions and effects of the embodiment

[0034] The fuel cell stack stacking device provided by the present utility model includes a backing plate 10 and a side frame 20. The backing plate 10 is arranged on one side of the fuel cell housing 1, and the side frame 20 is arranged on the backing plate 0 and is located at the bottom of the fuel cell housing 1. The core is added to the fuel cell housing 1 from the end of the fuel cell housing 1 far away from the side frame 20. The side frame 20 can hold a part of the core, so that the height of the core does not exceed the height of the fuel cell housing 1, thus avoiding the scratching and bumping of the core against the fuel cell housing during the pressing process, and avoiding problems such as core skew and poor fuel cell sealing, improving the product quality. The fuel cell stack stacking device provided by the present utility model can facilitate the stacking of the core in the fuel cell housing, avoiding the scratching and bumping of the core against the housing during the pressing process, and avoiding problems such as core skew and poor fuel cell sealing.

[0035] When stacking and pressing the core of a fuel cell using the fuel cell stack stacking device provided by the present utility model, first place the bottom of the fuel cell housing 1 on the side frame 21, with the limit protrusion 211 abutting against the connecting piece 2, and one side of the fuel cell housing 1 abutting against the backing plate 10. Insert a pin into the connecting hole 12 and the fuel cell housing 1 to fix the fuel cell housing 1 within the fuel cell stack stacking device. When stacking the core into the fuel cell housing 1 from the end of the fuel cell housing 1 away from the side frame 20, the core drops onto the support block 11. After completing the stacking of the core, install a cover plate at the end of the fuel cell housing 1 away from the side frame 20 to encapsulate the core. After the clamp on the press grips and fixes the fuel cell stack stacking device and the fuel cell housing 1 through the first jaw 3 and the second jaw 4, the clamp drives the fuel cell stack stacking device and the fuel cell housing 1 to flip, flipping the side frame 20 above the fuel cell housing 1. The press head of the press enters the interior of the fuel cell stack stacking device through the side frame 21 to compress the core, thus completing the pressing process of the core. The fuel cell stack stacking device provided by the present utility model can maintain the accuracy of the core stacking and pressing processes within the range of ±0.02 mm, effectively improving the reliability and durability of the fuel cell. The fuel cell stack stacking device provided by the present utility model can facilitate the stacking of the core within the fuel cell housing, avoiding scratching and bumping of the core against the housing during the pressing process, and avoiding problems such as core skew and poor fuel cell sealing.

[0036] The above has described the present utility model by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made using the method concept and technical solution of the present utility model; or without improvement, directly applying the above concept and technical solution of the present utility model to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A fuel cell stack device, characterized in that: The fuel cell housing (1) comprises a backing plate (10) and a side frame (20), wherein the backing plate (10) is arranged on one side of a fuel cell housing (1), and the side frame (20) is arranged on the backing plate (10) and is located at the bottom of the fuel cell housing (1). The side frame (20) comprises a side plate (21) and a fixing plate (22), one side of the side plate (21) is connected to the back plate (10), and the other side of the side plate (21) is connected to the fixing plate (22). It also includes a core guide structure (30), wherein the core guide structure (30) is evenly arranged on the back plate (10) and the side frame (20). The core guide structure (30) comprises a guide block (31) and a guide column (32) arranged on the guide block (31); the guide block (31) is evenly arranged on the back plate (10), the side plate (21) and the fixed plate (22).

2. The fuel cell stack device according to claim 1, characterized in that: A support block (11) is provided on the backing plate (10), and the support block (11) is located on a side of the backing plate (10) close to the fixing plate (22).

3. The fuel cell stack device according to claim 2, characterized in that: The backing plate (10) is provided with a connecting hole (12).

4. The fuel cell stack device according to claim 3, characterized in that: The fixing plate (22) is provided with clamping grooves (221), and the clamping grooves (221) are evenly arranged on the fixing plate (22).

5. The fuel cell stack device according to claim 4, characterized in that: The side plate (21) is provided with a limiting protrusion (211).

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