Hydrogen energy source electric pile mounting shell with good sealing performance

Abstract

The utility model relates to the technical field of hydrogen energy galvanic piles, in particular to a hydrogen energy galvanic pile mounting shell with good sealing performance, which comprises a shell, an air blowing mechanism is arranged in the shell and comprises a valve body, the valve body is fixedly connected to the top end of the shell, an air inlet is formed in one end of the valve body, an air inlet pipe is arranged at the other end of the valve body, the air inlet pipe penetrates through the valve body to be arranged in the valve body, and an air blowing opening is formed in the air inlet pipe. The exhaust structure can be switched through the switching structure, and the path of blowing airflow in the shell is controlled by switching the exhaust structure, so that different positions in the shell are effectively blown, the dehumidification and hydrogen removal effects in the shell are improved, and meanwhile, the safety performance of the hydrogen energy electric pile is improved; the protection mechanism can protect the galvanic pile in the shell after the shell is installed or in the moving and transporting process, impact force is buffered through the elasticity of the buffer spring, and therefore damage to the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy battery stacks, in particular to a hydrogen energy battery stack installation shell with good sealing performance. Background Art

[0002] In a fuel cell system, it is usually necessary to encapsulate the fuel cell stack in a sealed shell to protect the stack. However, during the operation of the fuel cell power system, more or less hydrogen and water vapor will leak out of the stack, and as the operating time increases, the leaked hydrogen will accumulate in the cavity formed between the fuel cell stack and the shell, posing a huge safety hazard. At the same time, the precipitated water vapor will condense in the cavity to form liquid water, which will affect the insulation of the fuel cell stack and other electrical components, and will also accelerate corrosion, affecting the reliability and service life of the fuel cell power system. In order to solve the above problems, it is necessary to continuously ventilate and purge the cavity, discharge the leaked hydrogen and water vapor in time, ventilate the cavity, and avoid the accumulation of hydrogen and water vapor.

[0003] The utility model patent with the publication number CN 218414672 U discloses a fuel cell stack housing. In this scheme, the housing, purge inlet, first purge pipe and purge outlet are provided. The housing has a cavity, and the cavity is used to accommodate the fuel cell stack; the purge inlet is provided at the bottom of the outer wall of the housing; the first purge pipe is provided in the cavity along the height direction of the cavity, the first purge pipe has an air inlet end and an air outlet end, the air inlet end is connected to the purge inlet, and the setting height of the air outlet end in the cavity is higher than the setting height of the air inlet end in the cavity; the purge outlet is provided on the outer wall of the housing. The circulation distance of the purge gas is reduced, and the purge speed is increased. The first purge pipe gathers the purge gas together and blows it out, which strengthens the purge intensity of the output purge gas and further accelerates the purge speed. The present application also improves the utilization rate of the internal space of the housing by providing the first purge pipe in the cavity, and improves the integration of the fuel cell system.

[0004] However, there are still some shortcomings in the above scheme. In the above scheme, the purge speed is increased by reducing the purge path. However, the reduction of the path leads to dead corners in the purge inside the shell. There is a space with a low flow speed for a long time inside the shell and the air inside the space. When the water vapor diffuses inside the shell and flows into the dead corner air, it is easy to cause the water vapor concentration in the dead corner to continue to increase. When the water vapor in the dead corner air is oversaturated, it is easy to form condensed water on the inner wall of the shell or the outer wall of the stack, thereby posing a safety hazard to the stack. In view of this, we propose a hydrogen energy stack installation shell with good sealing performance. Utility Model Content

[0005] The utility model aims to provide a hydrogen energy stack installation shell with good sealing performance, which solves the problem that the purge speed is increased by reducing the purge path in the prior art. However, the reduction of the path leads to dead corners in the purge inside the shell. There are spaces with low flow speed for a long time and air inside the spaces inside the shell. When water vapor diffuses inside the shell and flows into the dead corner air, it is easy to cause the water vapor concentration in the dead corner to continue to increase. When the water vapor in the dead corner air is oversaturated, it is easy to form condensed water on the inner wall of the shell or the outer wall of the stack, thereby posing a safety hazard to the stack.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hydrogen energy stack installation shell with good sealing performance, comprising a shell;

[0008] An air blowing mechanism is provided inside the shell, and the air blowing mechanism includes a valve body, the valve body is fixedly connected to the top of the shell, one end of the valve body is provided with an air inlet, the other end of the valve body is provided with an air inlet pipe, the air inlet pipe passes through the valve body and is arranged inside the valve body, and the air inlet pipe is provided with an air blowing port.

[0009] Preferably, the bottom end of the valve body and the top end of the shell are both provided with exhaust ports with structures corresponding to each other, the bottom end of the valve body is fixedly connected with an exhaust pipe, and the side of the exhaust pipe is provided with a through hole corresponding to the blowing port structure.

[0010] Preferably, an air outlet is provided at one end of the valve body, a switching chamber is provided inside the valve body, and the switching chamber is respectively interconnected with the air outlet, the exhaust port and the exhaust pipe.

[0011] Preferably, a motor is fixedly connected to the side of the valve body, the motor output shaft is arranged through the valve body, a driving rod is fixedly connected to the end of the motor output shaft, and a sealing plate is fixedly connected to the side of the driving rod.

[0012] Preferably, a hydrogen energy stack is fixedly connected inside the shell, the air inlet pipe and the exhaust pipe are symmetrically arranged on both sides of the hydrogen energy stack, a mounting hole is opened at the top edge of the shell, and a mounting bolt is connected inside the mounting hole.

[0013] Preferably, a protective mechanism is provided on the outside of the shell, and the protective mechanism includes a fixing groove, which is opened on both sides of the shell, and a connecting rod is connected inside the fixing groove. One end of the connecting rod is rotatably connected to a support block, and the support block is rotatably connected to the bottom end of the shell side.

[0014] Preferably, the other end of the connecting rod is rotatably connected to a buffer block, the buffer block is arranged through the shell, and a buffer spring is sleeved on the outer side of the buffer block.

[0015] By means of the above technical solution, the utility model provides a hydrogen energy stack installation shell with good sealing performance. It has at least the following beneficial effects:

[0016] (1) The utility model can switch the exhaust structure through a switching structure, and control the path of the blowing airflow inside the shell by switching the exhaust structure, so as to achieve effective blowing at different positions inside the shell, improve the dehumidification and hydrogen removal effect inside the shell, and at the same time improve the safety performance of the hydrogen energy stack.

[0017] (2) The protective mechanism provided in the present invention can protect the battery stack inside the shell after the shell is installed or during the moving and transporting process, and can buffer the impact force through the elasticity of the buffer spring, thereby reducing the damage to the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The internal structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 4 The internal structure of the utility model is shown in FIG. Figure 2 .

[0023] In the figure: 1. Shell; 2. Blowing mechanism; 201. Valve body; 202. Air inlet; 203. Air inlet pipe; 204. Blowing port; 205. Exhaust port; 206. Exhaust pipe; 207. Through hole; 208. Air outlet; 209. Switching chamber; 210. Motor; 211. Drive rod; 212. Sealing plate; 3. Hydrogen energy stack; 4. Mounting hole; 5. Mounting bolt; 6. Protective mechanism; 601. Fixing groove; 602. Connecting rod; 603. Support block; 604. Buffer block; 605. Buffer spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] A hydrogen energy stack installation shell with good sealing performance, such as Figure 1-Figure 4 As shown, it includes a shell 1; a blowing mechanism 2 is arranged inside the shell 1, and the blowing mechanism 2 includes a valve body 201, the valve body 201 is fixedly connected to the top of the shell 1, one end of the valve body 201 is provided with an air inlet 202, and the other end of the valve body 201 is provided with an air inlet pipe 203, the air inlet pipe 203 passes through the valve body 201 and is arranged inside the valve body 201, and the air inlet pipe 203 is provided with a blowing port 204, and the blowing mechanism 2 can blow air into the shell 1 to blow a small amount of hydrogen and water vapor that escape from the shell 1 into the The valve body 201 is blown to make the internal gas flow. The bottom of the valve body 201 and the top of the shell 1 are both provided with exhaust ports 205 with corresponding structures. The bottom of the valve body 201 is fixedly connected with an exhaust pipe 206. The side of the exhaust pipe 206 is provided with a through hole 207 with a structure corresponding to the blowing port 204. The exhaust port 205 structure can discharge hydrogen and water vapor at the top of the shell 1 when the internal gas of the shell 1 flows. At the same time, the exhaust pipe 206 structure can discharge the internal gas. When the valve body 205 is closed, the airflow entering the interior through the air inlet pipe 203 can dissipate heat inside the housing 1 and reduce the humidity inside the housing 1. An air outlet 208 is provided at one end of the valve body 201, and a switching chamber 209 is provided inside the valve body 201. The switching chamber 209 is respectively connected to the air outlet 208, the exhaust port 205 and the exhaust pipe 206. The switching chamber 209 is respectively connected to the two exhaust structures, so that the exhaust structure forms a "Y"-shaped structure, which is convenient for the exhaust pipe 206 or the exhaust port 205 to be switched. To switch, a motor 210 is fixedly connected to the side of the valve body 201, and the output shaft of the motor 210 is arranged through the valve body 201. The end of the output shaft of the motor 210 is fixedly connected to a driving rod 211, and a sealing plate 212 is fixedly connected to the side of the driving rod 211. The motor 210 structure can drive the driving rod 211 and the sealing plate 212 on the side of the driving rod 211, so that the sealing plate 212 can seal the exhaust port 205 or the exhaust pipe 206 through the sealing block on the side, thereby realizing the switching of the exhaust structure.

[0027] Example 2

[0028] like Figure 1-Figure 2As shown, a hydrogen energy stack 3 is fixedly connected inside the shell 1, and an intake pipe 203 and an exhaust pipe 206 are symmetrically arranged on both sides of the hydrogen energy stack 3. A mounting hole 4 is opened at the top edge of the shell 1, and a mounting bolt 5 is connected inside the mounting hole 4. The mounting hole 4 can facilitate the installation of the shell 1 to a set position, and the mounting bolt 5 structure can install and tighten the shell 1. A protective mechanism 6 is provided on the outside of the shell 1. The protective mechanism 6 includes a fixing groove 601, and the fixing groove 601 is opened on both sides of the shell 1. A connecting rod 602 is connected inside the fixing groove 601. One end of the connecting rod 602 is rotatably connected to a support block 603, and the support block 603 is rotatably connected to the bottom end of the side of the shell 1. The protective structure can be used for the shell The body 1 is provided with auxiliary protection to reduce the collision on both sides of the shell 1 during transportation or use. The rotatably connected support block 603 can drive the connecting rod 602 to rotate synchronously during the rotation, so as to facilitate the storage of the connecting rod 602 into the fixed groove 601. The other end of the connecting rod 602 is rotatably connected with a buffer block 604, and the buffer block 604 is arranged through the shell 1. A buffer spring 605 is sleeved on the outer side of the buffer block 604. The buffer block 604 structure can buffer the connecting rod 602, so that when the connecting rod 602 shrinks inwardly due to a collision, the buffer spring 605 can buffer the movement of the connecting rod 602 through elasticity, thereby reducing the impact force on the connecting rod 602.

[0029] When the hydrogen energy stack installation shell with good sealing performance of the utility model is in use, the external gas enters the valve body 201 from the air inlet 202, and enters the shell 1 from the air blowing port 204 on the side of the air inlet pipe 203, and the gas pressure inside the shell 1 increases accordingly, and the motor 210 drives and controls the driving rod 211 and the sealing plate 212 accordingly. When the sealing plate 212 opens the exhaust port 205 and closes the exhaust pipe 206, the air inside the shell 1 is discharged from the exhaust port 205 to the shell 1 after the pressure increases, and the hydrogen and water vapor located at the top of the shell 1 are blown toward the valve body 201, so that the hydrogen and water vapor are discharged from the shell 1. At the same time, when the sealing plate 212 closes the exhaust port 205 and opens the exhaust pipe 206, the air is blown into the shell 1 from the air blowing port 204. The internal gas flows around the hydrogen energy stack 3, and blows out the heat and water vapor on the surface of the hydrogen energy stack 3 from the through hole 207, thereby blowing the air in the lower part of the shell 1. During transportation or use, when the two sides of the hydrogen energy stack 3 are collided, the impact force impacts the connecting rod 602, and the two ends of the connecting rod 602 move outward and enlarge the angle of the connecting rod 602. At the same time, the buffer block 604 at the end of the connecting rod 602 moves under the squeezing of the connecting rod 602, compressing the buffer spring 605 on the outside of the buffer block 604, so that the impact force is buffered by the elasticity of the buffer spring 605 to avoid damage to the shell 1 caused by excessive impact force. At the same time, when the protective mechanism 6 is not in use, it can be stored in the fixed groove 601, thereby reducing the space occupied by both sides of the shell 1.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen energy stack installation housing with good sealing performance, comprising a housing (1), characterized in that: An air blowing mechanism (2) is provided inside the shell (1), and the air blowing mechanism (2) comprises a valve body (201), the valve body (201) is fixedly connected to the top end of the shell (1), one end of the valve body (201) is provided with an air inlet (202), and the other end of the valve body (201) is provided with an air inlet pipe (203), the air inlet pipe (203) passes through the valve body (201) and is arranged inside the valve body (201), and the air inlet pipe (203) is provided with an air blowing port (204).

2. A hydrogen energy stack installation housing with good sealing performance according to claim 1, characterized in that: The bottom end of the valve body (201) and the top end of the shell (1) are both provided with exhaust ports (205) having structures corresponding to each other, the bottom end of the valve body (201) is fixedly connected with an exhaust pipe (206), and the side of the exhaust pipe (206) is provided with a through hole (207) having a structure corresponding to that of the air outlet (204).

3. A hydrogen energy stack installation housing with good sealing performance according to claim 1, characterized in that: An air outlet (208) is provided at one end of the valve body (201), and a switching chamber (209) is provided inside the valve body (201). The switching chamber (209) is respectively interconnected with the air outlet (208), the exhaust port (205) and the exhaust pipe (206).

4. A hydrogen energy stack installation housing with good sealing performance according to claim 1, characterized in that: A motor (210) is fixedly connected to the side of the valve body (201), an output shaft of the motor (210) is arranged through the valve body (201), a driving rod (211) is fixedly connected to the end of the output shaft of the motor (210), and a sealing plate (212) is fixedly connected to the side of the driving rod (211).

5. A hydrogen energy stack installation housing with good sealing performance according to claim 1, characterized in that: A hydrogen energy stack (3) is fixedly connected to the inside of the shell (1); the air intake pipe (203) and the exhaust pipe (206) are symmetrically arranged on both sides of the hydrogen energy stack (3); a mounting hole (4) is provided at the top edge of the shell (1); and a mounting bolt (5) is connected to the inside of the mounting hole (4).

6. A hydrogen energy stack installation housing with good sealing performance according to claim 1, characterized in that: A protective mechanism (6) is provided on the outside of the shell (1), and the protective mechanism (6) comprises a fixing groove (601), the fixing groove (601) is provided on both sides of the shell (1), a connecting rod (602) is connected inside the fixing groove (601), one end of the connecting rod (602) is rotatably connected to a supporting block (603), and the supporting block (603) is rotatably connected to the bottom end of the side surface of the shell (1).

7. A hydrogen energy stack installation housing with good sealing performance according to claim 6, characterized in that: The other end of the connecting rod (602) is rotatably connected to a buffer block (604), the buffer block (604) is arranged through the housing (1), and a buffer spring (605) is sleeved on the outside of the buffer block (604).

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