Hydrogen fuel cell stack housing with good heat dissipation

Abstract

The utility model relates to hydrogen fuel cell field discloses a hydrogen fuel cell lamination housing that good heat dissipation performance, including metal end plate and lamination side shell, the inside fixedly connected with connecting frame in lamination side shell, the bottom fixedly connected with cooling channel of connecting frame, the left side fixedly connected with water inlet pipe of connecting frame top, the right side fixedly connected with water outlet pipe of connecting frame top. This hydrogen fuel cell lamination housing that good heat dissipation performance through liquid cooling, the interval between second cooling water pipe is small, and the density is big, and all are located at the central position of shell, and the pump body of outside will cool water from injection to the inside flow of first cooling water pipe and second cooling water pipe and heat dissipation to the battery, and the first temperature sensor and second temperature sensor can carry out temperature measurement to the multiple area positions of battery in real time, ensure the uniformity of heat dissipation, solve the problem that the temperature is not even and reduces the efficiency of electric pile, accelerates membrane electrode ageing.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell technology, specifically to a hydrogen fuel cell stacked shell with good heat dissipation performance. Background Technology

[0002] Hydrogen fuel cells are power generation devices that directly convert the chemical energy of hydrogen and oxygen into electrical energy. The stacked shell of hydrogen fuel cells is a key structural component of the hydrogen fuel cell stack. It is mainly used to encapsulate and protect the core components such as single cells, bipolar plates, and membrane electrodes. Its core functions are to provide mechanical support, sealing, gas distribution, and thermal management to ensure the efficient and stable operation of the stack.

[0003] Hydrogen fuel cell stacks are mostly made of metal. Traditional metal shells have good thermal conductivity, but they cannot dissipate heat evenly, which leads to local overheating inside the hydrogen fuel cell stack. Uneven temperature inside the stack will reduce stack efficiency and accelerate membrane electrode aging.

[0004] There is an urgent need for a hydrogen fuel cell stacked shell with good heat dissipation performance to solve the technical defects mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen fuel cell stack shell with good heat dissipation performance, so as to solve the problems mentioned in the background art, such as uneven temperature reducing stack efficiency and accelerating membrane electrode aging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen fuel cell stacked shell with good heat dissipation performance, comprising a metal end plate and a stacked side shell. A connecting frame is fixedly connected inside the stacked side shell. A cooling channel is fixedly connected to the bottom end of the connecting frame. A water inlet pipe is fixedly connected to the left side of the top end of the connecting frame, and a water outlet pipe is fixedly connected to the right side of the top end of the connecting frame. First cooling water pipes are fixedly connected to both sides inside the cooling channel. A second cooling water pipe is fixedly connected to the middle position inside the cooling channel. A cold-conducting plate is fixedly connected to the bottom end of the cooling channel. A second temperature sensor is fixedly connected to the bottom end of the cold-conducting plate. A thermally conductive coating is provided on the inner side of the metal end plate. A first temperature sensor is fixedly installed on the inner side of the thermally conductive coating. A reserved groove is provided on the outer side of the metal end plate. Four sets of mounting bolts are provided on the connecting frame. Mounting holes are provided at the top and bottom ends of the metal end plate. Fastening frames are provided at the front and rear ends of the stacked side shell, and fastening bolts are provided on the fastening frames.

[0007] As a further technical solution of this utility model, the water inlet pipe and the water outlet pipe are both connected to the water inlet end and the water outlet end of the first cooling water pipe, and the laminated side shell is made of carbon fiber.

[0008] As a further technical solution of this utility model, the first cooling water pipe and the second cooling water pipe are fixedly connected.

[0009] As a further technical solution of this utility model, the second cooling water pipe is located at the center inside the laminated side shell, and the first cooling water pipe is located on both sides inside the laminated side shell.

[0010] As a further technical solution of this utility model, the mounting bolt rotates through the connecting frame and is embedded inside the mounting hole, and the fastening bolt is embedded inside the laminated side shell in a threaded connection.

[0011] As a further technical solution of this utility model, the metal end plate is internally fixedly connected with reinforcing ribs, which are cross-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the hydrogen fuel cell stack shell with good heat dissipation performance not only realizes the function of facilitating uniform heat dissipation and enhancing durability, but also realizes the function of reducing weight; The structure comprises a laminated side shell, a first temperature sensor, a cooling channel, a cold-conducting plate, a first cooling water pipe, a second cooling water pipe, and a second temperature sensor. The inner side of the laminated side shell has a cooling channel, inside which the first and second cooling water pipes are distributed. The first cooling water pipes are spaced far apart and located on both sides of the shell, while the second cooling water pipes are spaced far apart and have a high density, and are all located at the center of the shell. During heat dissipation, an external pump injects cooling water from the inlet pipe into the first and second cooling water pipes and discharges it from the outlet pipe, circulating the water to dissipate heat from the battery. The first and second temperature sensors can measure the temperature of multiple areas of the battery in real time to ensure uniform heat dissipation and avoid local overheating. This structure achieves the function of facilitating uniform heat dissipation. By incorporating a metal end plate, laminated side shells, reinforcing ribs, and pre-reserved grooves, the metal end plate is made of aluminum alloy and has internal cross-shaped reinforcing ribs. The reinforcing ribs enhance the overall support of the metal end plate. The laminated side shells not only enhance heat dissipation but also distribute the stress evenly, thus enhancing overall durability. This structure achieves the function of enhancing durability. The outer shell of a hydrogen fuel cell is composed of two sets of metal end plates and laminated side shells, which are equipped with metal end plates, laminated side shells, fastening frames and fastening bolts. The laminated side shells are made of carbon fiber material, which not only improves corrosion resistance but also makes them lightweight. The metal end plates are made of aluminum alloy, which improves thermal conductivity. The reserved grooves inside the metal end plates adopt a multi-hole structure to reduce the amount and weight. This structure realizes the function of reducing the weight of the outer shell. Attached Figure Description

[0013] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a top view cross-sectional diagram of the stacked side shell structure of this utility model.

[0014] In the diagram: 1. Metal end plate; 2. Thermally conductive coating; 3. Connecting frame; 4. Laminated side shell; 5. Mounting bolt; 6. Mounting hole; 7. First temperature sensor; 8. Cooling channel; 9. Cold guiding plate; 10. First cooling water pipe; 11. Second cooling water pipe; 12. Second temperature sensor; 13. Fastening frame; 14. Fastening bolt; 15. Reinforcing rib; 16. Reserved groove; 17. Water inlet pipe; 18. Water outlet pipe. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides an embodiment of a hydrogen fuel cell stacked shell with good heat dissipation performance, comprising a metal end plate 1 and a stacked side shell 4. A connecting frame 3 is fixedly connected inside the stacked side shell 4. A cooling channel 8 is fixedly connected to the bottom end of the connecting frame 3. A water inlet pipe 17 is fixedly connected to the left side of the top end of the connecting frame 3, and a water outlet pipe 18 is fixedly connected to the right side of the top end of the connecting frame 3. First cooling water pipes 10 are fixedly connected to both sides inside the cooling channel 8, and a second cooling water pipe is fixedly connected to the middle position inside the cooling channel 8. 11. A cooling plate 9 is fixedly connected to the bottom of the cooling channel 8. A second temperature sensor 12 is fixedly connected to the bottom of the cooling plate 9. A thermally conductive coating 2 is provided on the inner side of the metal end plate 1. A first temperature sensor 7 is fixedly installed on the inner side of the thermally conductive coating 2. A reserved groove 16 is provided on the outer side of the metal end plate 1. Four sets of mounting bolts 5 are provided on the connecting frame 3. Mounting holes 6 are provided at the top and bottom of the metal end plate 1. Fastening frames 13 are provided at the front and rear ends of the stacked side shell 4. Fastening bolts 14 are provided on the fastening frames 13. Both the inlet pipe 17 and the outlet pipe 18 are connected to the inlet and outlet ends of the first cooling water pipe 10. The first cooling water pipe 10 and the second cooling water pipe 11 are fixedly connected. The second cooling water pipe 11 is located at the center inside the laminated side shell 4, and the first cooling water pipe 10 is located on both sides inside the laminated side shell 4. The laminated side shell 4 is made of carbon fiber. Specifically, such as Figure 1 and Figure 3 As shown, a cooling channel 8 is provided inside the stacked side shell 4. The cooling channel 8 contains a first cooling water pipe 10 and a second cooling water pipe 11. The first cooling water pipes 10 are spaced far apart and located on both sides of the shell. The second cooling water pipes 11 are spaced far apart and have a high density, and are all located at the center of the shell. When dissipating heat, the external pump injects cooling water from the inlet pipe 17 into the first cooling water pipes 10 and the second cooling water pipes 11 and discharges it from the outlet pipe 18. The circulating flow dissipates heat from the battery. The first temperature sensor 7 and the second temperature sensor 12 can measure the temperature of multiple areas of the battery in real time to ensure the uniformity of heat dissipation and avoid local overheating.

[0017] The mounting bolt 5 rotates through the connecting bracket 3 and is embedded in the mounting hole 6; the fastening bolt 14 is embedded in the stacked side shell 4 in a threaded connection. Specifically, such as Figure 1 and Figure 2 As shown, the outer shell of the hydrogen fuel cell is composed of two sets of metal end plates 1 and laminated side shells 4. The laminated side shells 4 are made of carbon fiber material, which not only improves corrosion resistance but also makes them lightweight. The metal end plates 1 are made of aluminum alloy, which improves thermal conductivity. The reserved grooves 16 inside the metal end plates 1 adopt a multi-hole structure to reduce the amount and weight.

[0018] The metal end plate 1 is internally fixedly connected with reinforcing ribs 15, which are cross-shaped. Specifically, such as Figure 1 and Figure 3 As shown, the metal end plate 1 is made of aluminum alloy and has a cross-shaped reinforcing rib 15 inside. The reinforcing rib 15 can enhance the overall support of the metal end plate 1. The laminated side shell 4 adopts a laminated shape, which not only enhances the heat dissipation effect, but also evenly distributes the force and enhances the overall durability.

[0019] Working principle: The hydrogen fuel cell is placed inside the stacked side shell 4, and then two sets of metal end plates 1 are used to support, install, and fix the stacked side shell 4. The metal end plates 1 are made of aluminum alloy and have cross-shaped reinforcing ribs 15 inside. The reinforcing ribs 15 can enhance the overall support of the metal end plates 1. The stacked shape of the stacked side shell 4 not only enhances the heat dissipation effect, but also evenly distributes the stress, enhancing the overall durability. The outer shell of the hydrogen fuel cell is composed of two sets of metal end plates 1 and the stacked side shell 4. The stacked side shell 4 is made of carbon fiber material, which not only improves the corrosion resistance, but also makes it lightweight. The metal end plates 1 are made of aluminum alloy, which can improve the thermal conductivity. The reserved grooves 16 inside the metal end plates 1 are designed to... The multi-hole structure reduces the amount and weight of materials. Cooling channels 8 are provided inside the stacked side shell 4. The cooling channels 8 contain first cooling water pipes 10 and second cooling water pipes 11. The first cooling water pipes 10 are spaced far apart and located on both sides of the shell. The second cooling water pipes 11 are spaced far apart and have a high density. They are all located at the center of the shell. When dissipating heat, the external pump injects cooling water from the inlet pipe 17 into the interior of the first cooling water pipes 10 and the second cooling water pipes 11 and discharges it from the outlet pipe 18. The circulating flow dissipates heat from the battery. The first temperature sensor 7 and the second temperature sensor 12 can measure the temperature of multiple areas of the battery in real time to ensure the uniformity of heat dissipation and avoid local overheating.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hydrogen fuel cell stacked shell with good heat dissipation performance, comprising a metal end plate (1) and a stacked side shell (4), characterized in that: A connecting frame (3) is fixedly connected inside the stacked side shell (4). A cooling channel (8) is fixedly connected to the bottom end of the connecting frame (3). A water inlet pipe (17) is fixedly connected to the left side of the top end of the connecting frame (3). A water outlet pipe (18) is fixedly connected to the right side of the top end of the connecting frame (3). A first cooling water pipe (10) is fixedly connected to both sides inside the cooling channel (8). A second cooling water pipe (11) is fixedly connected to the middle position inside the cooling channel (8). A cooling guide plate (9) is fixedly connected to the bottom end of the cooling channel (8). The bottom end of 9) is fixedly connected to a second temperature sensor (12). The inner side of the metal end plate (1) is provided with a thermally conductive coating (2). The inner side of the thermally conductive coating (2) is fixedly installed with a first temperature sensor (7). The outer side of the metal end plate (1) is provided with a reserved groove (16). The connecting frame (3) is provided with four sets of mounting bolts (5). The top and bottom ends of the metal end plate (1) are provided with mounting holes (6). The front and rear ends of the stacked side shell (4) are provided with fastening frames (13). The fastening frames (13) are provided with fastening bolts (14).

2. The heat dissipation performance of the stacked housing of a hydrogen fuel cell according to claim 1, characterized in that: The inlet pipe (17) and outlet pipe (18) are both connected to the inlet and outlet ends of the first cooling water pipe (10), and the laminated side shell (4) is made of carbon fiber.

3. The heat dissipation performance of the stacked housing of a hydrogen fuel cell according to claim 1, characterized in that: The first cooling water pipe (10) and the second cooling water pipe (11) are fixedly connected.

4. The heat dissipation performance of the stacked housing of a hydrogen fuel cell according to claim 1, characterized in that: The second cooling water pipe (11) is located at the center inside the laminated side shell (4), and the first cooling water pipe (10) is located on both sides inside the laminated side shell (4).

5. The heat dissipation performance of the stacked housing of a hydrogen fuel cell according to claim 1, characterized in that: The mounting bolt (5) rotates through the connecting frame (3) and is embedded inside the mounting hole (6), and the fastening bolt (14) is embedded inside the laminated side shell (4) in a threaded connection.

6. The heat dissipation performance of the stacked housing of a hydrogen fuel cell according to claim 1, characterized in that: The metal end plate (1) is internally fixedly connected with a reinforcing rib (15), which is cross-shaped.

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