A connection structure and a fuel cell engine

Abstract

This utility model relates to the field of fuel cell technology, and in particular to a connection structure and a fuel cell engine. The connection structure includes a through-shell tube, a connecting flange, a shell plate, a first adjusting plate, an adjusting platform, and a first connecting bolt. The shell plate has a through-hole extending in a first direction, and a first connecting hole is provided on the side of the shell plate opposite to the first direction. The adjusting platform is located on the side of the shell plate opposite to the first direction and has a through-hole extending in the first direction, which is connected to the through-hole. The connecting flange is fixedly sleeved on the outside of the through-shell tube and has a second connecting hole extending in the first direction. The through-shell tube passes through the through-hole, and the first connecting bolt passes through the first and second connecting holes. The first adjusting plate is located on the adjusting platform and has a first abutment surface. In summary, the fuel cell engine with this connection structure can effectively reduce the need for engine debugging and rework, thereby improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, and in particular to a connection structure and a fuel cell engine. Background Technology

[0002] Currently, in fuel cell engine systems, media such as hydrogen, air, and coolant need to be transferred between the engine's interior and external supply equipment via a through-shell pipe. Typically, the through-shell pipe needs to be installed through the fuel cell engine's outer casing to connect the internal and external systems.

[0003] In actual installation, after the through-tube is inserted into the engine housing, the engine housing and the through-tube clamp are connected to facilitate the subsequent connection of the two ends of the through-tube to the components on the inner and outer sides of the housing. However, due to the difficulty in adjusting the relative position between the engine housing and the through-tube, the through-tube cannot be adjusted according to the components located on the inner and outer sides of the housing to align with them. This requires workers to spend a lot of time debugging and reworking the engine, resulting in low production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a connection structure and a fuel cell engine to solve the technical problem that the through-shell tube is difficult to adjust the position of the components located on the inner and outer sides of the outer shell to align the components, which requires workers to spend a lot of time debugging and reworking the engine, resulting in low production efficiency.

[0005] To achieve the above objectives, this utility model provides a connection structure, including a through-shell tube, a connecting flange, a shell plate, a first adjusting plate, an adjusting platform, and a first connecting bolt. The shell plate has a through-hole extending along a first direction, and a first connecting hole is provided on the side of the shell plate opposite to the first direction. The adjusting platform is located on the side of the shell plate opposite to the first direction, and the adjusting platform has a through-hole extending along the first direction, which is connected to the through-hole. The connecting flange is fixedly sleeved on the outside of the through-shell tube, and the connecting flange has a second connecting hole extending along the first direction. The through-shell tube passes through the through-hole, and the first connecting bolt passes through the first connecting hole and the second connecting hole to connect the connecting flange and the shell plate. The first adjusting plate is located on the adjusting platform, and the first adjusting plate has a first abutting surface that can abut against the outer wall of the through-shell tube to limit the position of the through-shell tube.

[0006] Optionally, the first adjusting plate has a first abutting notch on its side, the side with the first abutting notch is perpendicular to the first direction, the first abutting notch penetrates the first adjusting plate along the first direction, the first abutting surface is provided at the first abutting notch, and the shell-penetrating tube passes through the first abutting notch.

[0007] Optionally, the first contact surface is an arc surface or a surface composed of an arc surface and a plane.

[0008] Optionally, a second adjusting plate is also included. The second adjusting plate is adjustablely disposed on the first adjusting plate. The second adjusting plate is provided with a second abutting surface. The first abutting surface and the second abutting surface form an abutting hole. The abutting hole can abut against the outer wall of the through-shell tube to limit the position of the through-shell tube. The position of the second adjusting plate can be adjusted in a direction perpendicular to the first direction to adjust the shape of the abutting hole.

[0009] Optionally, the second adjusting plate has a second abutment notch on its side relative to the first abutment surface, and the second abutment surface is located at the second abutment notch.

[0010] Optionally, the second contact surface is an arc surface or a surface composed of an arc surface and a plane.

[0011] Optionally, a second connecting bolt is also included. The first adjusting plate has two first adjusting holes that extend along a first direction, and the two adjusting holes are respectively located on both sides of the abutment hole. The second adjusting plate has two second adjusting holes that extend along the first direction, and the two second adjusting holes are respectively located on both sides of the abutment hole. The first adjusting holes and the second adjusting holes are arranged in a one-to-one correspondence. At least one of the corresponding first adjusting holes and second adjusting holes is an elongated hole, and each elongated hole extends in the same direction. The second connecting bolt passes through the first adjusting holes and the second adjusting holes to connect the first adjusting plate and the second adjusting plate.

[0012] Optionally, a third connecting bolt is also included. The wall of the through hole is provided with a mounting boss. The mounting boss is provided with a third connecting hole that extends along the first direction. The first adjusting plate is provided with a fourth connecting hole that extends along the first direction. The third connecting hole and the fourth connecting hole are arranged opposite to each other. The first adjusting plate rests on the side of the mounting boss that is opposite to the first direction. The third connecting bolt passes through the third connecting hole and the fourth connecting hole to connect the first adjusting plate and the mounting boss.

[0013] Optionally, a sealing ring is also included. A connecting seat is provided around the pipe hole on the side of the shell plate relative to the first direction. The first connecting hole is provided on the side of the connecting seat relative to the first direction. The connecting flange is provided on the side of the connecting seat away from the shell plate. The connecting flange and the connecting seat form a sealing groove. The sealing groove surrounds the pipe hole. The sealing ring is provided in the sealing groove to seal the gap between the connecting flange and the connecting seat.

[0014] A fuel cell engine having the aforementioned connection structure.

[0015] Compared with the prior art, the connection structure and fuel cell engine implemented in this utility model have the following advantages: The connection structure of this utility model is provided in the fuel cell engine. The through-shell tube passes through the pipe hole of the shell plate, and the through-shell tube and the shell plate are connected by a connecting flange sleeved on the outside of the through-shell tube. Furthermore, the connecting flange and the through-shell tube can be fixedly connected by welding. The connecting flange and the shell plate are connected by a first connecting bolt passing through a first connecting hole and a second connecting hole. This bolted connection structure allows the through-shell tube to be adjusted to a certain position in a direction perpendicular to the first direction so that its two ends are respectively aligned with the components on both sides. In addition, the adjustment platform is provided on the side of the shell plate opposite to the first direction and has a through-hole communicating with the pipe hole. The perforation allows one end of the through-hole to be located inside or through the through-hole. The first adjusting plate on the adjusting platform has a first abutment surface close to the through-hole. During the installation of the through-hole, the through-hole can be passed through the pipe hole and abutted against the first abutment surface for adjustment and alignment. After confirming alignment, the first connecting bolt is tightened to facilitate the alignment and installation of the through-hole. In summary, when installing the through-hole, the fuel cell engine equipped with the connection structure of this utility model can easily adjust the relative position between the through-hole and the shell plate, so that both ends of the through-hole can be aligned with the components on both sides for installation. This can effectively reduce the need for engine adjustment and rework, thereby improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure of this utility model.

[0017] Figure 2 This is a front view of the connection structure of this utility model.

[0018] Figure 3 for Figure 2 Sectional view of AA.

[0019] Figure 4 for Figure 3 A magnified view of part B in the middle.

[0020] Figure 5This is a left view of the connection structure of this utility model.

[0021] Figure 6 This is a top view of the connection structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the first adjusting plate of this utility model.

[0023] Figure 8 This is a schematic diagram of the structure of the second adjusting plate of this utility model.

[0024] Reference numerals in the attached drawings: 1. Through-shell pipe; 2. Connecting flange; 3. Shell plate; 31. Pipe hole; 4. Adjusting platform; 41. Through hole; 5. First adjusting plate; 51. First abutment surface; 52. First abutment notch; 53. First adjusting hole; 6. Second adjusting plate; 61. Second abutment surface; 62. Second abutment notch; 63. Second adjusting hole; 7. First connecting bolt; 8. Second connecting bolt; 9. Third connecting bolt; 10. Mounting boss; 20. Sealing ring; 30. Connecting seat. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] In the description of this utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] like Figures 1 to 8As shown, a connection structure of this utility model includes a through-shell tube 1, a connecting flange 2, a shell plate 3, a first adjusting plate 5, an adjusting platform 4, and a first connecting bolt 7. The shell plate 3 has a through-hole 31 extending along a first direction, and a first connecting hole on the side of the shell plate 3 opposite to the first direction. The adjusting platform 4 is located on the side of the shell plate 3 opposite to the first direction, and has a through-hole 41 extending along the first direction. The through-hole 41 and the through-hole 31 are connected. The connecting flange 2 is fixedly sleeved on the outside of the through-shell tube 1, and has a second connecting hole extending along the first direction. The through-shell tube 1 passes through the through-hole 31. The first connecting bolt 7 passes through the first connecting hole and the second connecting hole to connect the connecting flange 2 and the shell plate 3. The first adjusting plate 5 is located on the adjusting platform 4, and has a first abutting surface 51. The first abutting surface 51 can abut against the outer wall of the through-shell tube 1 to limit the position of the through-shell tube 1.

[0029] In the above technical solution, the through-shell tube 1 passes through the pipe hole 31 of the shell plate 3, and the through-shell tube 1 and the shell plate 3 are connected by a connecting flange 2 sleeved on the outside of the through-shell tube 1. Furthermore, the connecting flange 2 and the through-shell tube 1 can be fixedly connected by welding. The connecting flange 2 and the shell plate 3 are connected by a first connecting bolt 7 passing through a first connecting hole and a second connecting hole. This bolted connection structure allows the through-shell tube 1 to be adjusted to a certain position in a direction perpendicular to the first direction so that its two ends are respectively aligned with the components on both sides. In addition, the adjusting platform 4 is provided on the side of the shell plate 3 opposite to the first direction and is provided with a through hole 41 communicating with the pipe hole 31, so that one end of the through-shell tube 1 is located in the through hole 41 or passes through the through hole 41. 1. The first adjusting plate 5 on the adjusting platform 4 has a first abutting surface 51 close to the through-shell tube 1. During the installation of the through-shell tube 1, the through-shell tube 1 can be passed through the tube hole 31 and abutted against the first abutting surface 51 for debugging and alignment. After confirming the alignment, the first connecting bolt 7 is tightened to facilitate the alignment and installation of the through-shell tube 1. In summary, when installing the through-shell tube 1, the fuel cell engine with the connection structure of this utility model can easily adjust the relative position between the through-shell tube 1 and the shell plate 3 so that the two ends of the through-shell tube 1 can be aligned with the components on both sides for installation. This can effectively reduce the debugging and rework of the engine and improve production efficiency.

[0030] The first direction is the direction from inside the fuel cell engine to the outside and the direction from outside the fuel cell engine to the inside.

[0031] Furthermore, the first adjusting plate 5 has a first abutting notch 52 on its side, the side with the first abutting notch 52 is perpendicular to the first direction, the first abutting notch 52 penetrates the first adjusting plate 5 along the first direction, the first abutting surface 51 is provided at the first abutting notch 52, and the shell tube 1 passes through the first abutting notch 52.

[0032] When installing the through-shell tube 1, it can pass directly through the first abutment notch 52 in the first direction, or it can move in a direction perpendicular to the first direction and move into the first abutment notch 52 from the opening of the first abutment notch 52. Then, the first abutment notch 52 can restrict the movement of the through-shell tube 1 from multiple directions to facilitate the alignment and installation of the through-shell tube 1.

[0033] Furthermore, the first contact surface 51 is an arc surface or a surface composed of an arc surface and a plane.

[0034] The first abutment notch 52 can be a semi-circular notch or a long strip notch to fit the shape of the through tube 1, so that the first abutment notch 52 and the through tube 1 can be in surface contact or in line contact at multiple positions, reducing the probability of the component being scratched.

[0035] Furthermore, it also includes a second adjusting plate 6, which is adjustablely disposed on the first adjusting plate 5. The second adjusting plate 6 is provided with a second abutting surface 61. The first abutting surface 51 and the second abutting surface 61 form an abutting hole. The abutting hole can abut against the outer wall of the through-shell tube 1 to limit the position of the through-shell tube 1. The second adjusting plate 6 can be adjusted in a direction perpendicular to the first direction to adjust the shape of the abutting hole.

[0036] The first adjusting plate 5 and the second adjusting plate 6 work together to restrict the movement of the through-shell tube 1 from various directions perpendicular to the first direction. During the debugging and alignment process, when the section of the through-shell tube 1 close to the first adjusting plate 5 is aligned with the corresponding component, the second adjusting plate 6 can be installed and adjusted to change the shape of the abutment hole, so that one end of the through-shell tube 1 is fixed, allowing the workers to focus on the connection work at the connecting flange 2.

[0037] Furthermore, the second adjusting plate 6 is provided with a second abutment notch 62 on the side opposite to the first abutment surface 51, and the second abutment surface 61 is provided at the second abutment notch 62.

[0038] The second adjusting plate 6 is provided with a second abutment notch 62 so that the second adjusting plate 6 can give way to the through tube 1, thereby facilitating the installation of the second adjusting plate 6 on the first adjusting plate 5.

[0039] Furthermore, the second contact surface 61 is an arc surface or a surface composed of an arc surface and a plane.

[0040] The second abutment notch 62 can be a semi-circular notch or a long strip notch to fit the shape of the through-shell tube 1, so that the second abutment notch 62 and the through-shell tube 1 can be in surface contact or in line contact at multiple positions, reducing the probability of the component being scratched.

[0041] Furthermore, it also includes a second connecting bolt 8. The first adjusting plate 5 is provided with two first adjusting holes 53 that extend along a first direction. The two adjusting holes are respectively located on both sides of the abutment hole. The second adjusting plate 6 is provided with two second adjusting holes 63 that extend along a first direction. The two second adjusting holes 63 are respectively located on both sides of the abutment hole. The first adjusting holes 53 and the second adjusting holes 63 are provided in a one-to-one correspondence. At least one of the corresponding first adjusting holes 53 and second adjusting holes 63 is an elongated hole. Each elongated hole extends in the same direction. The second connecting bolt 8 passes through the first adjusting holes 53 and the second adjusting holes 63 to connect the first adjusting plate 5 and the second adjusting plate 6.

[0042] Since the first adjusting plate 5 and the second adjusting plate 6 are connected by bolts along the first direction, they can be adjusted to a certain position in various directions perpendicular to the first direction, and they are easy to disassemble and assemble. They can be adjusted to a greater length along the length of the long hole to lock onto the shell tube 1.

[0043] Furthermore, it also includes a third connecting bolt 9. The wall of the through hole 41 is provided with a mounting boss 10. The mounting boss 10 is provided with a third connecting hole that runs through the first direction. The first adjusting plate 5 is provided with a fourth connecting hole that runs through the first direction. The third connecting hole and the fourth connecting hole are arranged opposite to each other. The first adjusting plate 5 rests on the side of the mounting boss 10 opposite to the first direction. The third connecting bolt 9 passes through the third connecting hole and the fourth connecting hole to connect the first adjusting plate 5 and the mounting boss 10.

[0044] Since the first adjusting plate 5 and the mounting boss 10 are connected by bolts along the first direction, they can be adjusted to a certain position in various directions perpendicular to the first direction, and they are easy to disassemble and assemble.

[0045] Furthermore, it also includes a sealing ring 20. The shell plate 3 has a connecting seat 30 around the pipe hole 31 on the side opposite to the first direction. The first connecting hole is located on the side of the connecting seat 30 opposite to the first direction. The connecting flange 2 is located on the side of the connecting seat 30 away from the shell plate 3. The connecting flange 2 and the connecting seat 30 form a sealing groove. The sealing groove surrounds the pipe hole 31. The sealing ring 20 is located in the sealing groove to seal the gap between the connecting flange 2 and the connecting seat 30.

[0046] The sealing ring 20 is used to seal the space between the shell plate 3 and the through-shell pipe 1 to prevent the fuel cell engine from being directly connected to the outside, thereby improving the IP protection level of the fuel cell engine.

[0047] This embodiment also relates to a fuel cell engine, which has the aforementioned connection structure.

[0048] Furthermore, fixed setting and fixed connection refer to the fixed relative positional relationship of two components, including but not limited to fixing by connectors, fixing by welding, fixing by adhesive, fixing by integral molding, and fixing by snap-fit ​​connection.

[0049] Furthermore, detachable connection and detachable setting refer to the ability of two components to be repeatedly assembled and disassembled without damage or severe deformation, including but not limited to fixing by connectors or fixing by snap-fit ​​connections.

[0050] Furthermore, adjustable connection and adjustable setting refer to the fact that the two connected components can be adjusted in their relative positions before being fixed, and the aforementioned adjustment and fixing process can be repeated, including but not limited to connection through elongated holes and connectors, and connection through sliding connection plus detachable connection.

[0051] Furthermore, the connectors include, but are not limited to, fasteners, straps, ropes, pneumatic connectors, hydraulic connectors, flanges, Velcro, and buttons.

[0052] In summary, the present invention provides a connection structure and a fuel cell engine, the technical effects of which are as follows:

[0053] The connection structure of this utility model is provided in a fuel cell engine. The through-shell tube 1 passes through the pipe hole 31 of the shell plate 3, and the through-shell tube 1 and the shell plate 3 are connected by a connecting flange 2 sleeved on the outside of the through-shell tube 1. Furthermore, the connecting flange 2 and the through-shell tube 1 can be fixedly connected by welding. The connecting flange 2 and the shell plate 3 are connected by a first connecting bolt 7 passing through a first connecting hole and a second connecting hole. This bolted connection structure allows the through-shell tube 1 to be adjusted to a certain position in a direction perpendicular to the first direction so that its two ends are respectively aligned with the components on both sides. In addition, the adjustment platform 4 is provided on the side of the shell plate 3 opposite to the first direction and has a through hole 41 communicating with the pipe hole 31, so that one end of the through-shell tube 1 is located in the through hole 41 or passes through the pipe hole 31. Through the through hole 41, the first adjusting plate 5 on the adjusting platform 4 has a first abutting surface 51 close to the through tube 1. During the installation of the through tube 1, the through tube 1 can be passed through the tube hole 31 and abutted against the first abutting surface 51 for debugging and alignment. After confirming the alignment, the first connecting bolt 7 is tightened to facilitate the alignment and installation of the through tube 1. In summary, when installing the through tube 1, the fuel cell engine with the connection structure of this utility model can easily adjust the relative position between the through tube 1 and the shell plate 3 so that the two ends of the through tube 1 can be aligned with the components on both sides for installation. This can effectively reduce the debugging and rework of the engine and improve production efficiency.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A connection structure characterized by comprising: The assembly includes a through-shell pipe (1), a connecting flange (2), a shell plate (3), a first adjusting plate (5), an adjusting platform (4), and a first connecting bolt (7). The shell plate (3) has a through-hole (31) extending along a first direction. The shell plate (3) has a first connecting hole on its side relative to the first direction. The adjusting platform (4) is located on the side of the shell plate (3) relative to the first direction. The adjusting platform (4) has a through-hole (41) extending along the first direction. The through-hole (41) and the through-hole (31) are connected. The connecting flange (2) is fixedly sleeved on the shell plate (3). On the outside of the shell tube (1), the connecting flange (2) is provided with a second connecting hole that runs through the first direction. The shell tube (1) passes through the pipe hole (31). The first connecting bolt (7) passes through the first connecting hole and the second connecting hole to connect the connecting flange (2) and the shell plate (3). The first adjusting plate (5) is provided on the adjusting platform (4). The first adjusting plate (5) is provided with a first abutting surface (51). The first abutting surface (51) can abut against the outer wall of the shell tube (1) to limit the position of the shell tube (1).

2. The connection structure according to claim 1, characterized in that The first adjusting plate (5) has a first abutting notch (52) on its side. The side with the first abutting notch (52) is perpendicular to the first direction. The first abutting notch (52) passes through the first adjusting plate (5) along the first direction. The first abutting surface (51) is located at the first abutting notch (52). The shell tube (1) passes through the first abutting notch (52).

3. The connection structure according to claim 2, characterized in that The first contact surface (51) is an arc surface or a surface composed of an arc surface and a plane.

4. The connection structure according to any one of claims 1 to 3, characterized in that, It also includes a second adjusting plate (6), which is adjustablely disposed on the first adjusting plate (5). The second adjusting plate (6) is provided with a second abutting surface (61). The first abutting surface (51) and the second abutting surface (61) form an abutting hole. The abutting hole can abut against the outer wall of the through-shell tube (1) to limit the position of the through-shell tube (1). The second adjusting plate (6) can be adjusted in a direction perpendicular to the first direction to adjust the shape of the abutting hole.

5. The connection structure according to claim 4, characterized in that The second adjusting plate (6) has a second abutment notch (62) on the side opposite to the first abutment surface (51), and the second abutment surface (61) is located at the second abutment notch (62).

6. The connection structure according to claim 5, characterized in that The second contact surface (61) is an arc surface or a surface composed of an arc surface and a plane.

7. The connection structure according to claim 4, wherein It also includes a second connecting bolt (8). The first adjusting plate (5) is provided with two first adjusting holes (53) that extend along the first direction. The two adjusting holes are respectively located on both sides of the abutment hole. The second adjusting plate (6) is provided with two second adjusting holes (63) that extend along the first direction. The two second adjusting holes (63) are respectively located on both sides of the abutment hole. The first adjusting holes (53) and the second adjusting holes (63) are provided in a one-to-one correspondence. At least one of the corresponding first adjusting holes (53) and the second adjusting holes (63) is an elongated hole. Each elongated hole extends in the same direction. The second connecting bolt (8) passes through the first adjusting holes (53) and the second adjusting holes (63) to connect the first adjusting plate (5) and the second adjusting plate (6).

8. The connection structure according to claim 1, characterized by It also includes a third connecting bolt (9), the wall of the through hole (41) is provided with a mounting boss (10), the mounting boss (10) is provided with a third connecting hole that runs through the first direction, the first adjusting plate (5) is provided with a fourth connecting hole that runs through the first direction, the third connecting hole and the fourth connecting hole are arranged opposite to each other, the first adjusting plate (5) rests on the side of the mounting boss (10) opposite to the first direction, and the third connecting bolt (9) passes through the third connecting hole and the fourth connecting hole to connect the first adjusting plate (5) and the mounting boss (10).

9. The connection structure according to claim 1, characterized in that, It also includes a sealing ring (20). The shell plate (3) has a connecting seat (30) around the pipe hole (31) on the side opposite to the first direction. The first connecting hole is located on the side of the connecting seat (30) opposite to the first direction. The connecting flange (2) is located on the side of the connecting seat (30) away from the shell plate (3). The connecting flange (2) and the connecting seat (30) form a sealing groove. The sealing groove surrounds the pipe hole (31). The sealing ring (20) is located in the sealing groove to close the gap between the connecting flange (2) and the connecting seat (30).

10. A fuel cell engine characterized by comprising: It is provided with a connection structure as described in any one of claims 1 to 9.

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