Fuel cell shell structure

By combining a support frame with multiple plates, the design of the fuel cell housing structure solves the problems of high processing costs and waste materials, and achieves high-precision and low-cost fuel cell housing manufacturing.

CN223977912UActive Publication Date: 2026-03-06HYDROGEN (SHANGHAI) NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing fuel cell stack casing has high processing costs and is prone to waste, making it difficult to achieve the requirements of lightweight and high precision.

Method used

The structure adopts a supporting frame and multiple plate combinations. The shell is assembled by friction welding and screw connection. The front, rear, left, right and bottom plates are installed respectively to ensure accuracy and strength.

Benefits of technology

This reduces production difficulty and processing costs, minimizes waste, and ensures the processing precision and sealing of the shell.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223977912U_ABST
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Abstract

The utility model relates to the technical field of new energy batteries, in particular to a fuel cell shell structure which comprises a supporting frame, an upper cover, a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, the upper cover is arranged at the top of the supporting frame, the bottom plate is arranged at the bottom of the supporting frame, and the front side plate is arranged at the bottom of the supporting frame. The front side plate and the rear side plate are arranged on the front side and the rear side of the supporting frame respectively, and the left side plate and the right side plate are arranged on the left side and the right side of the supporting frame respectively. The supporting frame, the upper cover, the bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are separately processed and then assembled to form a complete shell structure, so that the production difficulty is effectively reduced, and the processing cost is greatly reduced; through the combination of a plurality of components, the machining precision can be guaranteed, the production difficulty can be reduced, the machining cost is greatly reduced, and the waste of machining waste is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically a fuel cell housing structure. Background Technology

[0002] As a crucial component of the fuel cell stack, the fuel cell stack housing is used to enclose the core. It not only needs to possess good strength but also requires a certain level of protection and sealing. Currently, to achieve lightweighting, most mainstream fuel cell stack housings are machined from a single piece of aluminum profile. This process demands high precision and is difficult, resulting in high processing costs and a significant amount of material waste. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned shortcomings by providing a fuel cell housing structure that, through the combination of multiple components, not only ensures processing precision but also reduces production difficulty, thereby significantly lowering processing costs and minimizing processing waste.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fuel cell housing structure includes a support frame, a top cover, a bottom plate, a front side plate, a rear side plate, a left side plate, and a right side plate. The top cover is disposed on the top of the support frame, the bottom plate is disposed on the bottom of the support frame, the front side plate and the rear side plate are respectively disposed on the front and rear sides of the support frame, and the left side plate and the right side plate are respectively disposed on the left and right sides of the support frame.

[0006] Furthermore, the support frame is provided with an upper opening that matches the shape of the upper cover, and the outer edge of the upper cover is connected to the inner wall of the upper opening by friction welding.

[0007] Furthermore, the front side of the support frame is provided with a front right positioning block and a plurality of front bottom positioning blocks, the front side plate is provided with a plurality of front screw holes, the front side of the support frame is provided with a plurality of front corresponding screw holes, when the right side of the front side plate abuts against the front right positioning block and the bottom of the front side plate abuts against the front bottom positioning block, the front screw holes are aligned with the front corresponding screw holes, and the front screw holes and the front corresponding screw holes are connected by a screw.

[0008] Furthermore, an annular rear positioning protrusion is provided on the rear side of the support frame. The shape of the annular rear positioning protrusion is adapted to the shape of the rear side plate. A rear bottom positioning plate is provided below the annular rear positioning protrusion. Multiple rear positioning posts are provided on one side of the annular rear positioning protrusion. Multiple rear corresponding screw holes are provided on the annular rear positioning protrusion. Multiple rear screw holes are provided on the rear side plate. When the bottom of the rear side plate abuts against the rear bottom positioning plate and one side of the rear side plate abuts against the rear positioning posts, the rear side plate is directly opposite the annular rear positioning protrusion, and the rear corresponding screw holes are directly opposite the rear screw holes. The rear corresponding screw holes and the rear screw holes are connected by screws.

[0009] Furthermore, the left side of the support frame is provided with a left annular recess, the shape of which is adapted to the shape of the left side plate. The left annular recess is provided with a plurality of left corresponding screw holes, and the left side plate is provided with a plurality of left screw holes. When the left side plate is inserted into the left annular recess, the left corresponding screw holes are aligned with the left screw holes, and the left corresponding screw holes and the left screw holes are connected by screws.

[0010] Furthermore, the right side of the support frame is provided with a right annular recess, the shape of which is adapted to the shape of the right side plate. The right annular recess is provided with a plurality of right corresponding screw holes, and the right side plate is provided with a plurality of right screw holes. When the right side plate is inserted into the right annular recess, the right corresponding screw holes are aligned with the right screw holes, and the right corresponding screw holes and the right screw holes are connected by screws.

[0011] Furthermore, the bottom of the support frame is provided with a plurality of bottom corresponding screw holes, and the bottom plate is provided with bottom screw holes directly opposite the corresponding screw holes, and the bottom corresponding screw holes and the bottom screw holes are connected by screws.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, by processing the support frame, top cover, bottom plate, front side plate, rear side plate, left side plate, and right side plate separately and then assembling them to form a complete shell structure, the production difficulty is effectively reduced and the processing cost is significantly reduced. This utility model, through the combination of multiple components, not only ensures processing accuracy but also reduces production difficulty, resulting in a significant reduction in processing costs and less waste of processing materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of this utility model;

[0016] Figure 3 This is a first-view structural schematic diagram of the support frame 1 in this utility model;

[0017] Figure 4 This is a structural schematic diagram of the support frame 1 from a second perspective in this utility model;

[0018] Reference numerals: Support frame 1; Top opening 111; Front right positioning block 121; Front bottom positioning block 122; Front corresponding screw hole 123; Annular rear positioning protrusion 131; Rear bottom positioning plate 132; Rear positioning post 133; Rear corresponding screw hole 134; Left annular recess 141; Left corresponding screw hole 142; Right annular recess 151; Right corresponding screw hole 152; Bottom corresponding screw hole 161; Top cover 2; Base plate 3; Front plate 4; Rear plate 5; Left plate 6; Right plate 7. Detailed Implementation

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a fuel cell housing structure includes a support frame 1, a top cover 2, a bottom plate 3, a front side plate 4, a rear side plate 5, a left side plate 6, and a right side plate 7. The top cover 2 is disposed on the top of the support frame 1, the bottom plate 3 is disposed on the bottom of the support frame 1, the front side plate 4 and the rear side plate 5 are respectively disposed on the front and rear sides of the support frame 1, and the left side plate 6 and the right side plate 7 are respectively disposed on the left and right sides of the support frame 1.

[0020] By processing the support frame 1, top cover 2, bottom plate 3, front side plate 4, rear side plate 5, left side plate 6, and right side plate 7 separately and then assembling them to form a complete shell structure, the production difficulty is effectively reduced and the processing cost is significantly reduced. This utility model, through the combination of multiple components, not only ensures processing accuracy but also reduces production difficulty, resulting in a significant reduction in processing costs and less waste of processing materials.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support frame 1 is provided with an upper opening 111 that matches the shape of the upper cover 2. The outer edge of the upper cover 2 and the inner wall of the upper opening 111 are connected by friction welding. In this embodiment, the upper cover 2 and the support frame 1 are connected by friction welding, which can ensure both the strength of the upper cover 2 and the sealing between the upper cover 2 and the support frame 1.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the front side of the support frame 1 is provided with a front right positioning block 121 and a plurality of front bottom positioning blocks 122. The front side plate 4 is provided with a plurality of front screw holes. The front side of the support frame 1 is provided with a plurality of front corresponding screw holes 123. When the right side of the front side plate 4 abuts against the front right positioning block 121 and the bottom of the front side plate 4 abuts against the front bottom positioning block 122, the front screw holes are aligned with the front corresponding screw holes 123. The front screw holes and the front corresponding screw holes 123 are connected by a screw. In this embodiment, during installation, the right side of the front side plate 4 abuts against the front right positioning block 121 and the bottom of the front side plate 4 abuts against the front bottom positioning block 122 to position the front side plate 4. Then, the front screw holes and the front corresponding screw holes 123 are connected by a screw to install the front side plate 4 on the support frame 1, which effectively reduces the processing difficulty of the front side of the housing.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support frame 1 has an annular rear positioning protrusion 131 on its rear side. The shape of the annular rear positioning protrusion 131 is adapted to the rear side plate 5. A rear bottom positioning plate 132 is provided below the annular rear positioning protrusion 131. Multiple rear positioning posts 133 are provided on one side of the annular rear positioning protrusion 131. Multiple rear corresponding screw holes 134 are provided on the annular rear positioning protrusion 131. Multiple rear screw holes are provided on the rear side plate 5. The bottom of the rear side plate 5 abuts against the rear bottom positioning plate 132, and the rear side plate 5... When one side abuts against the rear positioning post 133, the rear side plate 5 is directly opposite the annular rear positioning protrusion 131, and the corresponding rear screw hole 134 is directly opposite the rear screw hole. The corresponding rear screw hole 134 and the rear screw hole are connected by a second screw. In this embodiment, during installation, the bottom of the rear side plate 5 abuts against the rear bottom positioning plate 132, and one side of the rear side plate 5 abuts against the rear positioning post 133. The corresponding rear screw hole 134 and the rear screw hole are tightened by the second screw, and the rear side plate 5 can be installed on the rear side of the support frame 1, which effectively reduces the processing difficulty of the rear side of the housing.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the left side of the support frame 1 is provided with a left annular recess 141. The shape of the left annular recess 141 is adapted to the shape of the left side plate 6. The left annular recess 141 is provided with a plurality of left corresponding screw holes 142. The left side plate 6 is provided with a plurality of left screw holes. When the left side plate 6 is inserted into the left annular recess 141, the left corresponding screw holes 142 are aligned with the left screw holes. The left corresponding screw holes 142 and the left screw holes are connected by screws. In this embodiment, during installation, when the left side plate 6 is inserted into the left annular recess 141, the left corresponding screw holes 142 and the left screw holes are tightened by screws to install the left side plate 6, which effectively reduces the processing difficulty of the left side of the shell.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the right side of the support frame 1 is provided with a right annular recess 151. The shape of the right annular recess 151 is adapted to the shape of the right side plate 7. The right annular recess 151 is provided with a plurality of right corresponding screw holes 152. The right side plate 7 is provided with a plurality of right screw holes. When the right side plate 7 is inserted into the right annular recess 151, the right corresponding screw holes 152 are aligned with the right screw holes. The right corresponding screw holes 152 and the right screw holes are connected by screws. In this embodiment, during installation, when the right side plate 7 is inserted into the right annular recess 151, the right corresponding screw holes 152 and the right screw holes are tightened by screws to install the right side plate 7, which effectively reduces the processing difficulty of the right side of the shell.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the support frame 1 is provided with a plurality of bottom corresponding screw holes 161, and the bottom plate 3 is provided with bottom screw holes directly opposite the corresponding screw holes. The bottom corresponding screw holes 161 and the bottom screw holes are connected by screw five. In this embodiment, the bottom plate 3 can be installed by connecting the bottom corresponding screw holes 161 and the bottom screw holes with screw five, which effectively reduces the processing difficulty of the bottom surface of the shell.

[0027] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A fuel cell housing structure, characterized by: The utility model provides a kind of support frame (1), upper cover (2), bottom plate (3), front side plate (4), rear side plate (5), left side plate (6) and right side plate (7), the upper cover (2) is set on the top of the support frame (1), the bottom plate (3) is set on the bottom of the support frame (1), the front side plate (4) and rear side plate (5) are respectively set on the front side and rear side of the support frame (1), the left side plate (6) and right side plate (7) are respectively set on the left side and right side of the support frame (1).

2. A fuel cell housing structure according to claim 1, wherein The support frame (1) is provided with an upper opening (111) matched with the shape of the upper cover (2), and the outer edge of the upper cover (2) is connected with the inner side wall of the upper opening (111) by friction welding.

3. The fuel cell housing structure according to claim 1, wherein The front side of the support frame (1) is provided with a front side right positioning block (121) and a plurality of front side bottom positioning blocks (122), the front side plate (4) is provided with a plurality of front side screw holes, the front side of the support frame (1) is provided with a plurality of front side corresponding screw holes (123), when the right side of the front side plate (4) abuts against the front side right positioning block (121) and the bottom of the front side plate (4) abuts against the front side bottom positioning block (122), the front side screw hole is opposite to the front side corresponding screw hole (123), and the front side screw hole and the front side corresponding screw hole (123) are connected by a screw.

4. The fuel cell housing structure according to claim 1, wherein The rear side of the support frame (1) is provided with an annular rear side positioning protrusion (131), the shape of the annular rear side positioning protrusion (131) is matched with the rear side plate (5), the lower side of the annular rear side positioning protrusion (131) is provided with a rear side bottom positioning plate (132), one side of the annular rear side positioning protrusion (131) is provided with a plurality of rear side positioning columns (133), the annular rear side positioning protrusion (131) is provided with a plurality of rear side corresponding screw holes (134), the rear side plate (5) is provided with a plurality of rear side screw holes, when the bottom of the rear side plate (5) abuts against the rear side bottom positioning plate (132) and one side of the rear side plate (5) abuts against the rear side positioning column (133), the rear side plate (5) is opposite to the annular rear side positioning protrusion (131), the rear side corresponding screw hole (134) is opposite to the rear side screw hole, and the rear side corresponding screw hole (134) and the rear side screw hole are connected by a screw two.

5. The fuel cell housing structure according to claim 1, wherein The left side of the support frame (1) is provided with a left side annular concave (141), the shape of the left side annular concave (141) is matched with the shape of the left side plate (6), the left side annular concave (141) is provided with a plurality of left side corresponding screw holes (142), the left side plate (6) is provided with a plurality of left side screw holes, when the left side plate (6) is clamped into the left side annular concave (141), the left side corresponding screw hole (142) is opposite to the left side screw hole, and the left side corresponding screw hole (142) and the left side screw hole are connected by a screw three.

6. The fuel cell housing structure according to claim 1, wherein The right side of the support frame (1) is provided with a right side annular recess (151), the shape of the right side annular recess (151) is matched with the shape of the right side plate (7), a plurality of right side corresponding screw holes (152) are arranged on the right side annular recess (151), a plurality of right side screw holes are arranged on the right side plate (7), when the right side plate (7) is clamped into the right side annular recess (151), the right side corresponding screw holes (152) are opposite to the right side screw holes, and the right side corresponding screw holes (152) and the right side screw holes are connected through screws.

7. The fuel cell housing structure according to claim 1, wherein The bottom of the support frame (1) is provided with a plurality of bottom corresponding screw holes (161), and the bottom plate (3) is provided with a bottom screw hole opposite to the corresponding screw hole, and the bottom corresponding screw hole (161) and the bottom screw hole are connected through screws.