Protection structure of hydrogen fuel cell stack

Abstract

The utility model provides a protection structure of a hydrogen fuel cell stack, which relates to the technical field of hydrogen fuel cells and comprises a cell stack component, the cell stack component is composed of bipolar plates and proton exchange membranes, each proton exchange membrane is arranged between two adjacent bipolar plates, and a protection shell component provides an all-directional protection barrier for the bipolar plates. The assembly is composed of side protection plates, protection connecting plates, a protection bottom plate and a protection top cover, the side protection plates are installed on the two sides of the bipolar plate, the two protection connecting plates are clamped to the opposite faces of the side protection plates, installation is convenient, and meanwhile the stability of the overall structure is enhanced; the protective shell can be easily connected with other parts of equipment, the installation position can be flexibly adjusted, external collision and foreign matter invasion can be effectively blocked through the design, the bipolar plate is prevented from being damaged, the service life of the bipolar plate is prolonged, and stable operation of the equipment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell technology, and in particular to a protective structure for a hydrogen fuel cell stack. Background Technology

[0002] Hydrogen fuel cells, as a highly efficient and clean energy conversion device, are increasingly being used in automobiles, ships, and stationary power generation.

[0003] As the core component of a hydrogen fuel cell, the stack is composed of multiple single cells stacked in series. Its internal structure is intricate and extremely sensitive to vibration, impact, humidity and temperature changes.

[0004] In practical applications, the continuous vibration generated during the operation of vehicles or accidental collisions may cause displacement and wear of the internal components of the fuel cell stack, thereby affecting battery performance and lifespan. Existing protection measures are difficult to simultaneously meet the requirements for shock resistance, impact protection, moisture protection and temperature control of the fuel cell stack.

[0005] Therefore, this utility model proposes a protective structure for hydrogen fuel cell stacks. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies and propose a protective structure for hydrogen fuel cell stacks.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a protective structure for a hydrogen fuel cell stack, comprising:

[0008] A battery stack assembly, comprising bipolar plates and a proton exchange membrane, wherein the proton exchange membrane is disposed between two adjacent bipolar plates;

[0009] The protective housing assembly consists of side protective plates and protective connecting plates disposed on both sides of the bipolar plate, as well as protective bottom plates and protective top covers on the upper and lower sides. The two protective connecting plates are respectively disposed at the ends of the side protective plates that are close to each other, and the side protective plates and protective connecting plates are interlocked with each other. Mounting plates are provided around the protective bottom plate and the protective top cover.

[0010] The protective fence assembly consists of a rubber protective rod and a threaded rod disposed between the protective base plate and the protective top cover. The threaded rod passes through the rubber protective rod and is connected to the mounting plates of the protective base plate and the protective top cover.

[0011] Furthermore, a heat dissipation mechanism is embedded in the top of the protective top cover. There are two heat dissipation mechanisms, and the two heat dissipation mechanisms are symmetrical about the center of the protective top cover. Drainage holes are opened on the protective bottom plate. There are two drainage holes, and the two drainage holes are symmetrical about the center of the protective bottom plate.

[0012] The beneficial effects of adopting the above-mentioned further solution are as follows: The top of the protective cover is equipped with two heat dissipation mechanisms, which are symmetrically distributed with the center of the protective cover as the reference. During operation, the heat dissipation mechanisms can quickly dissipate the heat inside the equipment and prevent performance damage due to overheating. The protective base plate is also equipped with two drainage holes, which are symmetrically distributed on both sides of the center of the protective base plate. When water accumulates, the drainage holes quickly drain the water to avoid water accumulation at the bottom of the equipment, effectively reducing the risk of short circuit caused by moisture and comprehensively ensuring the stable operation and service life of the equipment.

[0013] Furthermore, the side protective plate has limit holes at both the top and bottom, and the protective base plate and the protective top cover are provided with limit pins at the top and bottom, respectively. The protective base plate and the protective top cover are interlocked with the upper and lower ends of the limit holes by the limit pins.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: the side protective plate is provided with symmetrical limiting holes at both the upper and lower ends, and the top of the protective base plate and the bottom of the protective top cover are respectively configured with limiting pins. During assembly, the protective device can be quickly assembled by interlocking the limiting pins with the limiting holes, which greatly improves the installation efficiency. This interlocking structure fits tightly and can effectively prevent the displacement and shaking of components, enhance the overall stability of the protective device, resist external impact, protect the internal components of the equipment, and facilitate later maintenance, allowing for the easy disassembly and replacement of damaged components.

[0015] Furthermore, a total of twelve rubber protective rods are provided, and the twelve rubber protective rods are arranged in groups of three, and the four groups of rubber protective rods are arranged in a rectangular distribution. Limiting bolts are threadedly connected to the upper and lower sides of the threaded rod.

[0016] The beneficial effects of adopting the above-mentioned further solution are as follows: The device is equipped with twelve rubber protective rods, which are arranged in a rectangular order of three rods per group. On the upper and lower sides of the rubber protective rods, limit bolts are threadedly connected to the threaded rods. The rubber protective rods can buffer external impacts and protect the equipment from bumps and damage. The limit bolts can not only firmly fix the rubber protective rods and prevent them from moving around at will, ensuring stable protection, but also make adjustment convenient. When the rubber protective rods are worn, they can be easily replaced by turning the limit bolts, effectively extending the overall protection cycle of the device and making maintenance more convenient.

[0017] Furthermore, the buffer base assembly consists of a buffer base plate disposed below the protective base plate, elastic ring components, and a rectangular buffer frame. The elastic ring components and the rectangular buffer frame are disposed between the buffer base plate and the protective base plate. There are a total of six elastic ring components, which are arranged in a rectangular pattern, and the spacing between two adjacent elastic ring components is equal.

[0018] The beneficial effects of adopting the above-mentioned further solution are as follows: The buffer base assembly consists of a buffer base plate, elastic ring parts, and a rectangular buffer frame, located below the protective base plate. The six elastic ring parts are distributed in a rectangular shape with equal spacing, working together with the rectangular buffer frame. When the equipment is subjected to vibration or impact, the elastic ring parts can evenly distribute the pressure and effectively buffer the vibration. The rectangular buffer frame further enhances the buffering effect and reduces the impact of the impact on the equipment. This design not only protects the internal structure of the equipment and extends its service life, but also reduces the noise generated by the vibration of the equipment and ensures the stable operation of the equipment.

[0019] Furthermore, the rectangular buffer frame is made of rubber, and the buffer base plate is sleeved on the outside of the six elastic ring parts. The size of the rectangular buffer frame is adapted to the size of the protective base plate and the buffer base plate.

[0020] The beneficial effects of adopting the above-mentioned further solution are as follows: The rectangular buffer frame is made of rubber, which has good elasticity and toughness. Its size is adapted to the protective base plate and the buffer base plate, and it can fit tightly against the two. The buffer base plate is fitted on the outside of six rectangularly distributed elastic ring parts, which together form a stable buffer structure. When the equipment is subjected to vibration and impact, the rubber rectangular buffer frame can effectively absorb and disperse energy, and the elastic ring parts can also provide buffer support. The two work together to minimize the impact force on the equipment, ensure the stable operation of the equipment, and extend the service life of the equipment.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, the protective shell assembly provides an all-round protective barrier for the bipolar plate. The assembly consists of side protective plates, protective connecting plates, protective bottom plates, and protective top covers. The side protective plates are installed on both sides of the bipolar plate, and the two protective connecting plates are snapped onto the opposite sides of the side protective plates. This facilitates installation and enhances the overall structural stability. The protective bottom plate and protective top cover are equipped with mounting plates around their perimeter. With the help of the mounting plates, the protective shell can be easily connected to other parts of the equipment, and the installation position can be flexibly adjusted. This design can effectively block external collisions and foreign object intrusion, prevent damage to the bipolar plate, extend its service life, and ensure stable operation of the equipment.

[0023] 2. In this utility model, the protective fence assembly plays an important role in the protective structure. It consists of a rubber protective rod and a threaded rod, and is installed between the protective base plate and the protective top cover. The threaded rod passes through the rubber protective rod and is connected to the mounting plates of the protective base plate and the protective top cover. The rubber protective rod is soft and elastic, and can effectively buffer energy when subjected to external impact, avoiding direct damage to the internal equipment. At the same time, the threaded rod tightly connects the various components, ensuring the overall stability of the protective fence assembly. In addition, this structure is easy to install and disassemble, and can be quickly operated when equipment maintenance or replacement of protective components is required, improving work efficiency and further ensuring the normal operation of the equipment. Attached Figure Description

[0024] Figure 1 This is a front view of the protective structure of a hydrogen fuel cell stack according to the present invention.

[0025] Figure 2 This is an exploded view of the protective structure of a hydrogen fuel cell stack according to the present invention;

[0026] Figure 3 This is a structural diagram of the battery stack assembly in the protective structure of a hydrogen fuel cell stack according to this utility model;

[0027] Figure 4 This is an exploded view of the protective shell assembly in the protective structure of a hydrogen fuel cell stack according to this utility model.

[0028] Figure 5 This is an exploded view of the protective fence assembly in the protective structure of a hydrogen fuel cell stack according to this utility model.

[0029] Figure 6 This is an exploded view of the buffer base assembly in the protective structure of a hydrogen fuel cell stack according to this utility model.

[0030] Attached Figure

[0031] 1. Protective outer shell assembly; 11. Side protective plate; 111. Limiting insertion hole; 12. Protective connecting plate; 13. Protective base plate; 131. Drainage hole; 132. Mounting plate; 14. Protective top cover; 141. Limiting pin; 142. Heat dissipation mechanism;

[0032] 2. Protective fence components; 21. Rubber protective rod; 22. Threaded rod; 23. Limit bolt;

[0033] 3. Buffer base assembly; 31. Buffer base plate; 32. Elastic ring component; 33. Rectangular buffer frame;

[0034] 4. Battery stack assembly; 41. Bipolar plate; 42. Proton exchange membrane. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figure 1-6 As shown, this utility model provides a technical solution: a protective structure for a hydrogen fuel cell stack, comprising:

[0037] The battery stack assembly 4 consists of bipolar plates 41 and proton exchange membranes 42. The proton exchange membranes 42 are disposed between two adjacent bipolar plates 41. The protective shell assembly 1 provides an all-round protective barrier for the bipolar plates 41. This assembly consists of side protective plates 11, protective connecting plates 12, protective bottom plates 13, and protective top covers 14. The side protective plates 11 are installed on both sides of the bipolar plates 41, and the two protective connecting plates 12 are snapped onto the opposite sides of the side protective plates 11. This facilitates installation and enhances the overall structural stability. The protective bottom plates 13 and the protective top covers 14 are provided with mounting plates 132 around their perimeter. With the help of the mounting plates 132, the protective shell can be easily connected to other parts of the equipment, and the installation position can be flexibly adjusted. This design can effectively block external collisions and foreign object intrusion, prevent damage to the bipolar plates 41, extend their service life, and ensure stable operation of the equipment.

[0038] The protective outer shell assembly 1 consists of side protective plates 11 and protective connecting plates 12 disposed on both sides of the bipolar plate 41, as well as protective base plates 13 on the upper and lower sides and a protective top cover 14. Two protective connecting plates 12 are respectively disposed at the ends of the side protective plates 11 that are close to each other, and the side protective plates 11 and protective connecting plates 12 are interlocked. Mounting plates 132 are provided around the protective base plate 13 and the protective top cover 14. The protective fence assembly 2 plays an important role in the protective structure; it consists of rubber protective rods 21 and threaded rods 22, and is installed on the protective base plate 13. Between the protective top cover 14 and the protective top cover 14, the threaded rod 22 passes through the rubber protective rod 21 and is connected to the mounting plate 132 of the protective bottom plate 13 and the protective top cover 14. The rubber protective rod 21 is soft and elastic, and can effectively buffer energy when subjected to external impact, avoiding direct damage to the internal equipment. At the same time, the threaded rod 22 tightly connects the various components, ensuring the overall stability of the protective fence assembly 2. In addition, this structure is easy to install and disassemble, and can be quickly operated when the equipment is maintained or when the protective components need to be replaced, improving work efficiency and further ensuring the normal operation of the equipment.

[0039] The protective fence assembly 2 is composed of a rubber protective rod 21 and a threaded rod 22 disposed between the protective base plate 13 and the protective top cover 14. The threaded rod 22 is disposed through the rubber protective rod 21 and connected to the mounting plate 132 of the protective base plate 13 and the protective top cover 14.

[0040] The protective top cover 14 has two heat dissipation mechanisms 142 embedded in its top. The two heat dissipation mechanisms 142 are symmetrical about the center of the protective top cover 14. The protective bottom plate 13 has two drainage holes 131 symmetrical about the center of the protective bottom plate 13. The protective top cover 14 has two heat dissipation mechanisms 142 embedded in its top. They are symmetrically distributed with the center of the protective top cover 14 as the reference. During operation, the heat dissipation mechanism 142 can quickly dissipate the heat inside the equipment and prevent performance damage due to overheating. The protective bottom plate 13 also has two drainage holes 131, symmetrically distributed on both sides of the center of the protective bottom plate 13. When water accumulates, the drainage holes 131 quickly drain the water, preventing water accumulation at the bottom of the equipment and effectively reducing the risk of short circuits caused by moisture. This comprehensively ensures the stable operation and service life of the equipment.

[0041] The side protective plate 11 has limit holes 111 at both the top and bottom. The top of the protective base plate 13 and the bottom of the protective top cover 14 are provided with limit pins 141. The protective base plate 13 and the protective top cover 14 are interlocked with the upper and lower ends of the limit holes 111 by the limit pins 141. The side protective plate 11 has symmetrical limit holes 111 at both the top and bottom. The top of the protective base plate 13 and the bottom of the protective top cover 14 are respectively provided with limit pins 141. During assembly, the protective device can be quickly assembled by interlocking the limit pins 141 with the limit holes 111, which greatly improves the installation efficiency. This interlocking structure fits tightly and can effectively prevent the displacement and shaking of components, enhance the overall stability of the protective device, resist external impact, protect the internal components of the equipment, and facilitate later maintenance, allowing for the easy disassembly and replacement of damaged components.

[0042] There are twelve rubber protective rods 21 in total, arranged in groups of three, with four groups of rubber protective rods 21 distributed in a rectangular pattern. Limiting bolts 23 are threaded onto the threaded rods 22 on both the upper and lower sides of each rubber protective rod 21. The device is equipped with twelve rubber protective rods 21, arranged in groups of three in a rectangular pattern. Limiting bolts 23 are threaded onto the threaded rods 22 on both the upper and lower sides of each rubber protective rod 21. The rubber protective rods 21 can buffer external impacts and protect the equipment from damage. The limiting bolts 23 not only firmly fix the rubber protective rods 21, preventing them from moving freely and ensuring stable protection, but also allow for easy adjustment. When the rubber protective rods 21 wear out, they can be easily replaced by turning the limiting bolts 23, effectively extending the overall protection cycle of the device and making maintenance more convenient.

[0043] The buffer base assembly 3 consists of a buffer base plate 31, elastic ring members 32, and a rectangular buffer frame 33, all positioned below the protective base plate 13. The elastic ring members 32 and the rectangular buffer frame 33 are located between the buffer base plate 31 and the protective base plate 13. Six elastic ring members 32 are arranged in a rectangular pattern, with equal spacing between adjacent members. The buffer base assembly 3, composed of the buffer base plate 31, elastic ring members 32, and rectangular buffer frame 33, is located below the protective base plate 13. The six elastic ring members 32, arranged in a rectangular pattern with equal spacing, work in conjunction with the rectangular buffer frame 33. When the equipment is subjected to vibration or impact, the elastic ring members 32 evenly distribute pressure, effectively buffering the vibration. The rectangular buffer frame 33 further enhances the buffering effect, reducing the impact of the impact on the equipment. This design not only protects the internal structure of the equipment and extends its service life but also reduces noise generated by vibration, ensuring stable operation of the equipment.

[0044] The rectangular buffer frame 33 is made of rubber. The buffer base plate 31 is fitted on the outside of the six elastic ring members 32. The size of the rectangular buffer frame 33 is adapted to the size of the protective base plate 13 and the buffer base plate 31. The rectangular buffer frame 33 is made of rubber and has good elasticity and toughness. Its size is adapted to the protective base plate 13 and the buffer base plate 31, and it can fit tightly against the two. The buffer base plate 31 is fitted on the outside of the six rectangularly distributed elastic ring members 32, which together form a stable buffer structure. When the equipment is subjected to vibration and impact, the rubber rectangular buffer frame 33 can effectively absorb and disperse energy, and the elastic ring members 32 can also provide buffer support. The two work together to minimize the impact force on the equipment, ensure the stable operation of the equipment, and extend the service life of the equipment.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A protective structure for a hydrogen fuel cell stack, characterized in that, include: The battery stack assembly (4) is composed of bipolar plates (41) and proton exchange membranes (42), wherein the proton exchange membranes (42) are disposed between two adjacent bipolar plates (41); The protective housing assembly (1) consists of side protective plates (11) and protective connecting plates (12) disposed on both sides of the bipolar plate (41), as well as protective bottom plates (13) and protective top covers (14) on the upper and lower sides. The two protective connecting plates (12) are respectively disposed at the ends of the side protective plates (11) that are close to each other. The side protective plates (11) and the protective connecting plates (12) are interlocked with each other. Mounting plates (132) are provided around the protective bottom plate (13) and the protective top cover (14). The protective fence assembly (2) consists of a rubber protective rod (21) and a threaded rod (22) disposed between the protective base plate (13) and the protective top cover (14). The threaded rod (22) is disposed through the rubber protective rod (21) and connected to the mounting plate (132) of the protective base plate (13) and the protective top cover (14).

2. The protective structure for a hydrogen fuel cell stack according to claim 1, characterized in that: The top of the protective top cover (14) is fitted with a heat dissipation mechanism (142). There are two heat dissipation mechanisms (142), and the two heat dissipation mechanisms (142) are symmetrical about the center of the protective top cover (14). The protective bottom plate (13) is provided with two drainage holes (131), and the two drainage holes (131) are symmetrical about the center of the protective bottom plate (13).

3. The protective structure for a hydrogen fuel cell stack according to claim 1, characterized in that: The side protective plate (11) has limit holes (111) at both the top and bottom. The top of the protective base plate (13) and the bottom of the protective top cover (14) are provided with limit pins (141). The protective base plate (13) and the protective top cover (14) are connected to each other by the limit pins (141) and the upper and lower ends of the limit holes (111).

4. The protective structure for a hydrogen fuel cell stack according to claim 1, characterized in that: There are twelve rubber protective rods (21) in total, and the twelve rubber protective rods (21) are arranged in groups of three, and the four groups of rubber protective rods (21) are arranged in a rectangular shape. The threaded rod (22) is threaded with limit bolts (23) on both the upper and lower sides of the rubber protective rod (21).

5. The protective structure for a hydrogen fuel cell stack according to claim 1, characterized in that: The buffer base assembly (3) consists of a buffer base plate (31) disposed below the protective base plate (13), an elastic ring (32) and a rectangular buffer frame (33). The elastic ring (32) and the rectangular buffer frame (33) are disposed between the buffer base plate (31) and the protective base plate (13). There are six elastic rings (32) in total, and the six elastic rings (32) are distributed in a rectangular shape, and the spacing between two adjacent elastic rings (32) is equal.

6. The protective structure for a hydrogen fuel cell stack according to claim 5, characterized in that: The rectangular buffer frame (33) is made of rubber, and the buffer base plate (31) is sleeved on the outside of the six elastic ring parts (32). The size of the rectangular buffer frame (33) is adapted to the size of the protective base plate (13) and the buffer base plate (31).

Images