Centralized arrangement device for fuel cell sensors

Abstract

The utility model relates to the technical field of fuel cell testing, and particularly discloses a fuel cell sensor centralized arrangement device. The device comprises a device base, and a hydrogen pipeline, a cooling pipeline and an air pipeline penetrate through the device base in the horizontal direction; the device base is provided with a first communication unit communicated with a hydrogen pipeline, and the first communication unit comprises a hydrogen path concentration sensor interface which extends in the vertical direction and is a counterbore, a hydrogen path pressure sensor interface which extends in the vertical direction, and a hydrogen path temperature sensor interface and a hydrogen path humidity sensor interface which extend in the horizontal direction; the device base is provided with a cooling path temperature sensor interface communicated with the cooling pipeline; the device base is provided with a second communication unit communicated with the air pipeline, and the second communication unit comprises an air path humidity sensor interface extending in the horizontal direction, and an air path pressure sensor interface and an air path temperature sensor interface which extend in the vertical direction. According to the device, centralized arrangement of the sensors is realized, and the integration level and the universality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell testing, in particular to a centralized arrangement device for fuel cell sensors. Background Art

[0002] In the fuel cell system calibration experiment, the three subsystems of the fuel cell engine (i.e., hydrogen subsystem, air subsystem, and cooling subsystem) have different requirements for sensor types. Therefore, it is necessary to select sensors with different functions according to the calibration of the hydrogen path, air path, and cooling path, and the layout requirements of sensors with different functions are different. Considering that the hydrogen path has high requirements for the sealing of sensors, the fuel cell system also needs to solve the difficulties in sensor integration and layout.

[0003] In the prior art, fuel cell systems usually arrange a certain type of sensor separately, or arrange the sensors of a single subsystem in a centralized manner, which will cause space conflicts for each engine system. At the same time, the arrangement of sensors also needs to overcome the problems of low integration, poor versatility and large space occupation. Utility Model Content

[0004] The purpose of the utility model is to provide a centralized arrangement device for fuel cell sensors, so as to improve the integration and versatility of the fuel cell system and reduce the occupied space.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A fuel cell sensor centralized arrangement device comprises a device base, wherein the device base is penetrated by a hydrogen pipeline, a cooling pipeline and an air pipeline in a horizontal direction; both ends of the hydrogen pipeline are connected to a hydrogen pipeline interface, and a first connecting unit connected to the hydrogen pipeline is provided on the device base, wherein the first connecting unit comprises a hydrogen concentration sensor interface, a hydrogen temperature sensor interface, a hydrogen pressure sensor interface and a hydrogen humidity sensor interface, wherein the hydrogen concentration sensor interface extends in a vertical direction and is a countersunk hole, the hydrogen pressure sensor interface extends in a vertical direction, and the hydrogen temperature sensor interface and the hydrogen The air path humidity sensor interfaces all extend in the horizontal direction; both ends of the cooling pipeline are connected with cooling path pipeline interfaces, and a cooling path temperature sensor interface connected to the cooling pipeline is provided on the device base; both ends of the air pipeline are connected with air path pipeline interfaces, and a second connecting unit connected to the air pipeline is provided on the device base, the second connecting unit includes an air path pressure sensor interface, an air path temperature sensor interface and an air path humidity sensor interface, the air path pressure sensor interface and the air path temperature sensor interface all extend in the vertical direction, and the air path humidity sensor interface extends in the horizontal direction.

[0007] As a preferred technical solution for the centralized arrangement device of fuel cell sensors, the inner wall of the first connecting unit is provided with an internal thread.

[0008] As a preferred technical solution for the centralized arrangement of fuel cell sensors, the second connecting unit, the cooling path temperature sensor interface, the hydrogen path temperature sensor interface, the hydrogen path pressure sensor interface and the hydrogen path humidity sensor interface are all countersunk holes.

[0009] As a preferred technical solution for the centralized arrangement device of fuel cell sensors, the base of the device is a rectangular parallelepiped, including a top surface, a bottom surface, two interface surfaces and two connection surfaces, the two interface surfaces are arranged opposite to each other, the two connection surfaces are arranged opposite to each other, and the top surface and the bottom surface are arranged opposite to each other; the two hydrogen path pipeline interfaces are separated on the two connection surfaces, the two cooling path pipeline interfaces are separated on the two connection surfaces, the two air path pipeline interfaces are separated on the two connection surfaces, the hydrogen path concentration sensor interface, the hydrogen path pressure sensor interface, the cooling path temperature sensor interface, the air path pressure sensor interface and the air path temperature sensor interface are opened on the top surface, the hydrogen path temperature sensor interface and the hydrogen path humidity sensor interface are opened on one interface surface, and the air path humidity sensor interface is opened on the other interface surface.

[0010] As a preferred technical solution for the centralized arrangement of fuel cell sensors, the centralized arrangement of fuel cell sensors also includes a hydrogen path concentration sensor body, which is detachably mounted on the hydrogen path concentration sensor interface; the top surface is also provided with a plurality of hydrogen path concentration sensor fixing holes, all of which are circumferentially arranged around the hydrogen path concentration sensor interface, and the centralized arrangement of fuel cell sensors also includes a first locking piece, the number of the first locking pieces is the same as the number of the hydrogen path concentration sensor fixing holes, and each of the first locking pieces can pass through the hydrogen path concentration sensor body and be locked and connected to one of the hydrogen path concentration sensor fixing holes.

[0011] As a preferred technical solution for the centralized arrangement of fuel cell sensors, the centralized arrangement of fuel cell sensors also includes a hydrogen path humidity sensor body, which is detachably mounted on the hydrogen path humidity sensor interface; the interface surface is also provided with a plurality of hydrogen path humidity sensor fixing holes, all of which are circumferentially arranged around the hydrogen path humidity sensor interface, and the centralized arrangement of fuel cell sensors also includes a second locking piece, the number of the second locking pieces is the same as the number of the hydrogen path humidity sensor fixing holes, and each of the second locking pieces can pass through the hydrogen path humidity sensor body and be locked and connected to one of the hydrogen path humidity sensor fixing holes.

[0012] As a preferred technical solution for the centralized arrangement of fuel cell sensors, the centralized arrangement of fuel cell sensors also includes an air path humidity sensor body, which is detachably mounted on the air path humidity sensor interface; the interface surface is also provided with a plurality of air path humidity sensor fixing holes, all of which are circumferentially arranged around the air path humidity sensor interface; the centralized arrangement of fuel cell sensors also includes a third locking piece, the number of the third locking pieces is the same as the number of the air path humidity sensor fixing holes, and each of the third locking pieces can pass through the air path humidity sensor body and be locked and connected to one of the air path humidity sensor fixing holes.

[0013] As a preferred technical solution for the centralized arrangement device of fuel cell sensors, the hydrogen pipeline, the cooling pipeline and the air pipeline are evenly spaced in sequence along the connecting direction of the two interface surfaces.

[0014] As a preferred technical solution for the centralized arrangement device of fuel cell sensors, a fixing seat is fixedly connected to the edge of the interface surface, and the fourth locking member can pass through the fixing seat and be locked and connected to the external environment.

[0015] As a preferred technical solution for the centralized arrangement device of fuel cell sensors, the base of the device is made of 316 stainless steel.

[0016] Beneficial effects of the utility model:

[0017] The centralized arrangement device for fuel cell sensors realizes the integration of the hydrogen subsystem, air subsystem and cooling subsystem of the fuel cell by simultaneously setting up hydrogen pipelines, cooling pipelines and air pipelines, thereby facilitating the centralized arrangement of different types of sensors corresponding to the three subsystems, meeting the arrangement requirements of all sensors, and thereby solving the problem of insufficient integration of the fuel cell, and saving space while ensuring the normal function of each function. The arrangement of the hydrogen pipeline interface, the cooling pipeline interface and the air pipeline interface facilitates the connection of the three pipelines with the three subsystems respectively, reduces the difficulty of arranging the device base, expands the application range of the device base, and enhances the versatility of the centralized arrangement device for fuel cell sensors. The design of integrating the sensors on the three subsystems facilitates data collection and replacement, reduces the manufacturing cost, and reduces the occupied space. The centralized arrangement device for fuel cell sensors has high integration, strong versatility and wide practicality, and can be applied to most fuel cell engine systems, which helps to improve the volume-to-power ratio of the fuel cell engine system. The arrangement of each sensor interface enables the relative position of the sensor body and the corresponding pipeline to be determined, avoids the relative position offset caused by accidents, and ensures the stable operation of the centralized arrangement device for fuel cell sensors. Considering that the hydrogen pipeline is thin and has a small diameter, the diameter of the hydrogen pipeline portion of the hydrogen concentration sensor interface is smaller than the interface of the hydrogen concentration sensor body. Therefore, the hydrogen concentration sensor interface adopts a countersunk hole design, which can ensure the smooth connection between the hydrogen concentration sensor body and the hydrogen pipeline while ensuring the stable operation of the hydrogen pipeline. At the same time, the countersunk hole structure also helps to reduce the space occupied by the centralized arrangement device of the fuel cell sensor. The design of the hydrogen temperature sensor interface extending in the horizontal direction enables the hydrogen temperature sensor body to fully contact the hydrogen pipeline, facilitating the temperature interaction between the hydrogen temperature sensor body and the hydrogen pipeline. The design of the hydrogen pressure sensor interface and the air pressure sensor interface extending in the vertical direction takes into account the possibility of condensed water accumulation when the fuel cell engine system is cold started. By arranging the hydrogen pressure sensor body and the air pressure sensor body above the corresponding pipeline, it is ensured that the pressure sensor body can accurately detect the corresponding pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a centralized arrangement device for fuel cell sensors provided by an embodiment of the utility model;

[0019] Figure 2 It is a top view of a centralized arrangement device for fuel cell sensors provided by an embodiment of the utility model;

[0020] Figure 3It is a left view of the centralized arrangement device of fuel cell sensors provided by an embodiment of the utility model;

[0021] Figure 4 It is a right view of the fuel cell sensor centralized arrangement device provided in an embodiment of the utility model.

[0022] In the figure:

[0023] 100, device base; 110, hydrogen path concentration sensor fixing hole; 120, hydrogen path humidity sensor fixing hole; 130, air path humidity sensor fixing hole; 140, fixing seat; 150, hydrogen path pipeline interface; 160, cooling path pipeline interface; 170, air path pipeline interface;

[0024] 200, hydrogen circuit pressure sensor interface; 300, hydrogen circuit concentration sensor interface; 400, cooling circuit temperature sensor interface; 500, air circuit pressure sensor interface; 600, air circuit temperature sensor interface; 700, hydrogen circuit humidity sensor interface; 800, hydrogen circuit temperature sensor interface; 900, air circuit humidity sensor interface. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] like Figures 1 to 4 As shown, the present embodiment provides a centralized arrangement device for fuel cell sensors, including a device base 100, wherein the device base 100 is penetrated by a hydrogen pipeline, a cooling pipeline and an air pipeline in a horizontal direction; both ends of the hydrogen pipeline are connected to a hydrogen pipeline interface 150, and a first connecting unit connected to the hydrogen pipeline is provided on the device base 100, and the first connecting unit includes a hydrogen concentration sensor interface 300, a hydrogen temperature sensor interface 800, a hydrogen pressure sensor interface 200 and a hydrogen humidity sensor interface 700, wherein the hydrogen concentration sensor interface 300 extends in a vertical direction and is a countersunk hole, the hydrogen pressure sensor interface 200 extends in a vertical direction, and the hydrogen temperature sensor interface 800 extends in a vertical direction. 00 and the hydrogen path humidity sensor interface 700 both extend in the horizontal direction; both ends of the cooling pipeline are connected with cooling path pipeline interfaces 160, and a cooling path temperature sensor interface 400 connected to the cooling pipeline is provided on the device base 100; both ends of the air pipeline are connected with air path pipeline interfaces 170, and a second connecting unit connected to the air pipeline is provided on the device base 100, the second connecting unit includes an air path pressure sensor interface 500, an air path temperature sensor interface 600 and an air path humidity sensor interface 900, the air path pressure sensor interface 500 and the air path temperature sensor interface 600 both extend in the vertical direction, and the air path humidity sensor interface 900 extends in the horizontal direction.

[0030] The centralized arrangement device for fuel cell sensors realizes the integration of the hydrogen subsystem, air subsystem and cooling subsystem of the fuel cell by simultaneously setting up the hydrogen pipeline, cooling pipeline and air pipeline, thereby facilitating the centralized arrangement of different types of sensors corresponding to the three subsystems, meeting the arrangement requirements of all sensors, and thus solving the problem of insufficient integration of the fuel cell, and saving space under the premise of ensuring the normal operation of each function. The arrangement of the hydrogen pipeline interface 150, the cooling pipeline interface 160 and the air pipeline interface 170 facilitates the connection of the three pipelines with the three subsystems respectively, reduces the difficulty of arranging the device base 100, expands the application scope of the device base 100, and enhances the versatility of the centralized arrangement device for fuel cell sensors. The design of integrating the sensors on the three subsystems facilitates the collection and replacement of data, reduces the manufacturing cost, and reduces the occupied space. The above-mentioned centralized arrangement device for fuel cell sensors has high integration, strong versatility and wide practicality, and can be applied to most fuel cell engine systems, which helps to improve the volume power ratio of the fuel cell engine system. The setting of each sensor interface enables the relative position of the sensor body and the corresponding pipeline to be determined, avoiding the relative position offset caused by accidents, and ensuring the stable operation of the fuel cell sensor centralized arrangement device. Considering that the hydrogen pipeline is thinner and smaller in diameter, the diameter of the hydrogen path concentration sensor interface 300 connecting to the hydrogen pipeline is smaller than the interface of the hydrogen path concentration sensor body. Therefore, the hydrogen path concentration sensor interface 300 adopts a countersunk hole design, which can ensure the stable operation of the hydrogen pipeline while ensuring the smooth connection between the hydrogen path concentration sensor body and the hydrogen pipeline. At the same time, the countersunk hole structure also helps to reduce the space occupied by the fuel cell sensor centralized arrangement device. The design of the hydrogen path temperature sensor interface 800 extending in the horizontal direction enables the hydrogen path temperature sensor body to fully contact the hydrogen pipeline, facilitating the temperature interaction between the hydrogen path temperature sensor body and the hydrogen pipeline. The design of the hydrogen path pressure sensor interface 200 and the air path pressure sensor interface 500 extending in the vertical direction takes into account the possibility of condensed water accumulation when the fuel cell engine system is cold-started. By arranging the hydrogen path pressure sensor body and the air path pressure sensor body above the corresponding pipelines, it is ensured that the pressure sensor body can accurately detect the corresponding pipelines.

[0031] In this embodiment, the fuel cell sensor centralized arrangement device uses a full range of sensor types, which are the types of sensors required for calibration of most fuel cell engine systems. They are arranged at the entrance and exit of the fuel cell stack, thereby facilitating real-time feedback of performance parameters of each subsystem entering and exiting the fuel cell stack.

[0032] Specifically, the hole diameter of the hydrogen concentration sensor interface 300 is larger than the diameter of the hydrogen pipeline. Considering that the inner diameter of the hole required by the hydrogen concentration sensor body is larger than the inner diameter of the hydrogen pipeline, the hydrogen concentration sensor body should be more prevented from water vapor accumulation and sealing problems, so the hydrogen concentration sensor interface 300 is required to extend in the vertical direction so that the hydrogen concentration sensor body is located directly above the hydrogen pipeline.

[0033] In this embodiment, the inner wall of the first connecting unit is provided with an internal thread. Specifically, the gap between the sensor interface and the corresponding sensor body is filled with sealant. The above installation matching method realizes a close fit between the sensor interface and the corresponding sensor body, thereby preventing hydrogen leakage, reducing the space occupied by the device base 100, and reducing the disassembly and maintenance costs of the fuel cell sensor centralized arrangement device.

[0034] Exemplarily, the second connecting unit, the cooling path temperature sensor interface 400, the hydrogen path temperature sensor interface 800, the hydrogen path pressure sensor interface 200 and the hydrogen path humidity sensor interface 700 are all countersunk holes. The above structural design helps to further reduce the space occupied by the fuel cell sensor centralized arrangement device.

[0035] In this embodiment, the device base 100 is a rectangular parallelepiped, including a top surface, a bottom surface, two interface surfaces and two connecting surfaces, the two interface surfaces are arranged opposite to each other, the two connecting surfaces are arranged opposite to each other, and the top surface and the bottom surface are arranged opposite to each other; the two hydrogen path pipeline interfaces 150 are separated on the two connecting surfaces, the two cooling path pipeline interfaces 160 are separated on the two connecting surfaces, the two air path pipeline interfaces 170 are separated on the two connecting surfaces, the hydrogen path concentration sensor interface 300, the hydrogen path pressure sensor interface 200, the cooling path temperature sensor interface 400, the air path pressure sensor interface 500 and the air path temperature sensor interface 600 are opened on the top surface, the hydrogen path temperature sensor interface 800 and the hydrogen path humidity sensor interface 700 are opened on one interface surface, and the air path humidity sensor interface 900 is opened on the other interface surface.

[0036] The above design achieves structural optimization of the device base 100, realizes the smooth layout of the positions of the three pipelines and all sensor interfaces, and thereby plans the position limitations of the sensor body connected to the device base 100 and the subsystem input and output ends, thereby achieving overall layout optimization of the fuel cell engine system and further improving the volume-to-power ratio of the fuel cell engine system.

[0037] Furthermore, the centralized arrangement device of fuel cell sensors also includes a hydrogen path concentration sensor body, which is detachably mounted on the hydrogen path concentration sensor interface 300; a plurality of hydrogen path concentration sensor fixing holes 110 are also provided on the top surface, and all of the hydrogen path concentration sensor fixing holes 110 are circumferentially arranged around the hydrogen path concentration sensor interface 300; the centralized arrangement device of fuel cell sensors also includes a first locking member, and the number of the first locking members is the same as the number of the hydrogen path concentration sensor fixing holes 110, and each first locking member can pass through the hydrogen path concentration sensor body and be locked and connected to a hydrogen path concentration sensor fixing hole 110; the centralized arrangement device of fuel cell sensors also includes a hydrogen path humidity sensor body, which is detachably mounted on the hydrogen path humidity sensor interface 700; a plurality of hydrogen path humidity sensor fixing holes 120 are also provided on the interface surface, and all of the hydrogen path humidity sensor fixing holes 120 are circumferentially arranged around the hydrogen path concentration sensor interface 300. Around the gas path humidity sensor interface 700, the fuel cell sensor centralized arrangement device also includes a second locking piece, the number of the second locking piece is the same as the hydrogen path humidity sensor fixing holes 120, and each second locking piece can pass through the hydrogen path humidity sensor body and be locked and connected to a hydrogen path humidity sensor fixing hole 120; the fuel cell sensor centralized arrangement device also includes an air path humidity sensor body, and the air path humidity sensor body can be detachably installed on the air path humidity sensor interface 900; a plurality of air path humidity sensor fixing holes 130 are also opened on the interface surface, and all the air path humidity sensor fixing holes 130 are circumferentially arranged around the air path humidity sensor interface 900, and the fuel cell sensor centralized arrangement device also includes a third locking piece, the number of the third locking piece is the same as the air path humidity sensor fixing holes 130, and each third locking piece can pass through the air path humidity sensor body and be locked and connected to an air path humidity sensor fixing hole 130. With the help of the cooperation between each sensor fixing hole and the corresponding locking piece, the corresponding sensor body can be locked and connected to the device base 100. The above design is simple and reliable, with high connection stability and convenient disassembly and assembly, which ensures the accuracy of the sensor body's detection results of the pipeline, reduces the risk of the pipeline being connected to the external environment due to accident, and ensures the stable operation of the fuel cell sensor centralized arrangement device.

[0038] In this embodiment, the hydrogen pipeline, the cooling pipeline and the air pipeline are evenly spaced in sequence along the connecting direction of the two interface surfaces. The above design allows the hydrogen pipeline and the air pipeline to be close to the two interface surfaces, thereby reducing the difficulty of opening the hydrogen path humidity sensor interface 700, the hydrogen path temperature sensor interface 800 and the air path humidity sensor interface 900, reducing the processing cost of the device base 100, and optimizing the structural layout of the fuel cell sensor centralized arrangement device.

[0039] For example, the edge of the interface surface is fixedly connected with a fixing seat 140, and the fourth locking member can pass through the fixing seat 140 and be locked and connected to the external environment. With the cooperation of the fourth locking member and the fixing seat 140, the detachable connection of the device base 100 in the external environment is achieved, the connection stability of the device base 100 is guaranteed, and the maintenance frequency of the fuel cell sensor centralized arrangement device is reduced.

[0040] In this embodiment, the material of the device base 100 is 316 stainless steel. Considering the strict requirements for the arrangement of the hydrogen subsystem sensor and the high requirements for air tightness, the material limitation of the device base 100 using 316 stainless steel can effectively prevent the occurrence of hydrogen embrittlement. At the same time, the cooling subsystem requires that no metal ions can be precipitated, which puts forward strict requirements on the material of the device base 100. Since 316 stainless steel can also meet the requirement of not precipitating metal ions, the hydrogen subsystem and the cooling subsystem can be jointly and centrally arranged.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A centralized arrangement device for fuel cell sensors, characterized in that: The device comprises a device base (100), wherein the device base (100) is penetrated in a horizontal direction by: A hydrogen pipeline, both ends of which are connected to a hydrogen pipeline interface (150); a first connecting unit connected to the hydrogen pipeline is provided on the device base (100); the first connecting unit comprises a hydrogen concentration sensor interface (300), a hydrogen temperature sensor interface (800), a hydrogen pressure sensor interface (200) and a hydrogen humidity sensor interface (700); the hydrogen concentration sensor interface (300) extends in a vertical direction and is a countersunk hole; the hydrogen pressure sensor interface (200) extends in a vertical direction; and the hydrogen temperature sensor interface (800) and the hydrogen humidity sensor interface (700) both extend in a horizontal direction; A cooling pipeline, both ends of which are connected to a cooling pipeline interface (160), and a cooling pipeline temperature sensor interface (400) connected to the cooling pipeline is provided on the device base (100); An air duct, both ends of which are connected to an air duct interface (170), a second connecting unit connected to the air duct is provided on the device base (100), the second connecting unit comprises an air duct pressure sensor interface (500), an air duct temperature sensor interface (600) and an air duct humidity sensor interface (900), the air duct pressure sensor interface (500) and the air duct temperature sensor interface (600) both extend in a vertical direction, and the air duct humidity sensor interface (900) extends in a horizontal direction.

2. The fuel cell sensor centralized arrangement device according to claim 1, characterized in that: The inner wall of the first communication unit is provided with an internal thread.

3. The fuel cell sensor centralized arrangement device according to claim 1, characterized in that: The second connecting unit, the cooling path temperature sensor interface (400), the hydrogen path temperature sensor interface (800), the hydrogen path pressure sensor interface (200) and the hydrogen path humidity sensor interface (700) are all countersunk holes.

4. The fuel cell sensor centralized arrangement device according to claim 1, characterized in that: The device base (100) is a rectangular parallelepiped member, comprising a top surface, a bottom surface, two interface surfaces and two connection surfaces, the two interface surfaces are arranged opposite to each other, the two connection surfaces are arranged opposite to each other, and the top surface is arranged opposite to the bottom surface; the two hydrogen path pipeline interfaces (150) are separated on the two connection surfaces, the two cooling path pipeline interfaces (160) are separated on the two connection surfaces, the two air path pipeline interfaces (170) are separated on the two connection surfaces, the hydrogen path concentration sensor interface (300), the hydrogen path pressure sensor interface (200), the cooling path temperature sensor interface (400), the air path pressure sensor interface (500) and the air path temperature sensor interface (600) are provided on the top surface, the hydrogen path temperature sensor interface (800) and the hydrogen path humidity sensor interface (700) are provided on one interface surface, and the air path humidity sensor interface (900) is provided on the other interface surface.

5. The fuel cell sensor centralized arrangement device according to claim 4, characterized in that: The fuel cell sensor centralized arrangement device also includes a hydrogen gas path concentration sensor body, and the hydrogen gas path concentration sensor body can be detachably mounted on the hydrogen gas path concentration sensor interface (300); the top surface is also provided with a plurality of hydrogen gas path concentration sensor fixing holes (110), and all of the hydrogen gas path concentration sensor fixing holes (110) are circumferentially arranged around the hydrogen gas path concentration sensor interface (300); the fuel cell sensor centralized arrangement device also includes a first locking member, and the number of the first locking members is the same as the number of the hydrogen gas path concentration sensor fixing holes (110), and each of the first locking members can pass through the hydrogen gas path concentration sensor body and be locked and connected to one of the hydrogen gas path concentration sensor fixing holes (110).

6. The fuel cell sensor centralized arrangement device according to claim 4, characterized in that: The fuel cell sensor centralized arrangement device also includes a hydrogen path humidity sensor body, which is detachably mounted on the hydrogen path humidity sensor interface (700); the interface surface is also provided with a plurality of hydrogen path humidity sensor fixing holes (120), all of which are circumferentially arranged around the hydrogen path humidity sensor interface (700); the fuel cell sensor centralized arrangement device also includes a second locking member, the number of which is the same as the number of the hydrogen path humidity sensor fixing holes (120), and each of which can pass through the hydrogen path humidity sensor body and be locked and connected to one of the hydrogen path humidity sensor fixing holes (120).

7. The fuel cell sensor centralized arrangement device according to claim 4, characterized in that: The fuel cell sensor centralized arrangement device also includes an air path humidity sensor body, which is detachably mounted on the air path humidity sensor interface (900); the interface surface is also provided with a plurality of air path humidity sensor fixing holes (130), all of which are circumferentially arranged around the air path humidity sensor interface (900); the fuel cell sensor centralized arrangement device also includes a third locking member, the number of which is the same as the number of the air path humidity sensor fixing holes (130), and each of which can pass through the air path humidity sensor body and be locked and connected to one of the air path humidity sensor fixing holes (130).

8. The fuel cell sensor centralized arrangement device according to claim 4, characterized in that: The hydrogen pipeline, the cooling pipeline and the air pipeline are evenly spaced in sequence along the connecting direction of the two interface surfaces.

9. The fuel cell sensor centralized arrangement device according to claim 4, characterized in that: A fixing seat (140) is fixedly connected to the edge of the interface surface, and a fourth locking member can pass through the fixing seat (140) and be locked and connected to the external environment.

10. The fuel cell sensor centralized arrangement device according to any one of claims 1 to 9, characterized in that: The material of the device base (100) is 316 stainless steel.

Images