CN110380097B - Fuel cell stack device and configuration method - Google Patents

Abstract

A fuel cell stack device and configuration method, wherein the fuel cell stack device includes: a plurality of fuel cell units; two end frames, namely a first end frame and a second end frame; and an adjustment and fixing assembly, wherein the plurality of fuel cell units are clamped between the first end frame and the second end frame and are adjusted and fixed by the adjustment and fixing assembly.

Description

Fuel cell stack device and configuration method

Technical Field

The present invention relates to the field of fuel cells, and more particularly, to a fuel cell stack device and configuration method.

Background technique

Fuel cell technology is a clean and efficient power generation technology developed in recent years and has been gradually applied to many fields. Proton exchange membrane fuel cells are an important type of fuel cell.

Proton exchange membrane fuel cells are energy conversion devices that generate electricity and heat by reacting hydrogen and oxygen through proton exchange membranes. A single fuel cell mainly consists of an anode plate, a cathode plate, an electrode, a proton membrane, an insulating plate, a current collecting plate and a sealing layer. Multiple fuel cells are stacked together through a compression device to form a fuel cell stack, which can obtain greater output power and meet greater load requirements.

The output capacity of a fuel cell stack is closely related to the contact and sealing integrity between adjacent fuel cell units, and the clamping device is a key factor affecting the assembly performance of the fuel cell unit. However, there are still some problems with the existing fuel cell stack and the clamping device.

The existing fuel cell stack mainly includes a fuel cell unit, a metal end plate, a screw rod and a bolt. A plurality of fuel cell units are compressed and assembled together by a compression device formed by two metal end plates and the screw rods and bolts.

In this simple structure, firstly, the positions of the two end plates are determined by a combination of ordinary screws and bolts. Therefore, the assembly pressure is not easy to control, which may easily cause the assembly pressure to be too high or too low. When the assembly pressure is insufficient, the compression of the gas diffusion layer is too low, and the internal contact resistance of the fuel cell stack is large, which affects the power output of the fuel cell stack and the sealing performance becomes worse. When the assembly pressure is too high, the gas diffusion layer is over-compressed, which may cause gas blockage and even damage the membrane electrode.

Secondly, the assembly pressure distribution of the metal end plate is uneven when it is assembled by screws and bolts, which can easily cause it to lean to one side, affecting the gas and current density distribution and thermal management, and shortening the service life of the fuel cell stack.

Third, the end plate of the metal plate structure is relatively expensive and heavy, which increases the overall mass of the fuel cell and increases the cost.

Fourth, the fuel cell stack needs to work with other components to generate electricity during operation. Hydrogen, air and coolant are provided to the fuel cell stack to generate electricity. However, the existing fuel cell stack end plate only integrates the hydrogen interface component, so it is difficult to connect other matching components. In other words, the existing fuel cell stack has a low degree of integration.

Summary of the invention

An object of the present invention is to provide a fuel cell stack device and configuration method, which dynamically adjusts the assembly pressure of the two end frames and each fuel cell unit to better balance the assembly pressure.

An object of the present invention is to provide a fuel cell stack device and a configuration method, which integrate a plurality of interface components so that the fuel cell stack device can be easily connected with other matching components for operation.

An object of the present invention is to provide a fuel cell stack device and a configuration method, wherein the fuel cell stack device includes an adjustment and fixing assembly, and the adjustment and fixing assemblies are assembled in a mutually positioned manner, thereby making the assembly more precise.

One object of the present invention is to provide a fuel cell stack device and configuration method, wherein a positioning rod of the adjustment and fixing assembly has a positioning cone surface, and correspondingly, an end frame has a positioning hole, and the positioning rod is suitable for passing through the positioning hole and quickly positioning through the cooperation of the positioning cone surface and the positioning hole.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the adjustment and fixing assembly includes at least one elastic adjustment element to prevent a fixing element from loosening, and to perform displacement compensation to balance the assembly pressure.

One object of the present invention is to provide a fuel cell stack device and configuration method, wherein the elastic element is composed of a plurality of disc springs, and the plurality of disc springs can be combined according to different clamping forces or deformation compensation requirements of the end frame to obtain better loading characteristics.

An object of the present invention is to provide a fuel cell stack device and configuration method, which integrates multiple sensors to facilitate working in conjunction with other matching components.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the elastic element is elastically spaced between the end frame and the end of the fixing element to prevent the fixing element from damaging the end frame during the tightening process.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the end frame is a mesh frame that replaces the traditional flat plate structure, reduces weight, and reduces costs.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the end frame has at least one exhaust hole to facilitate exhaust of the fuel cell stack.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the positioning rod is a hollow structure, which reduces the mass while ensuring structural strength.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the end of the positioning rod has an auxiliary installation hole for cooperating with the installation tool to prevent the positioning rod from rotating during the tightening process.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the fuel cell stack includes at least one sealing element, and the sealing element is arranged at different installation positions to facilitate sealed installation.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the end frame includes a main frame and a plurality of connecting ribs, and each of the connecting ribs is connected to the inside of the main frame in a diamond-shaped layout to form a stable connection structure.

An object of the present invention is to provide a fuel cell stack device and configuration method, wherein the end frame includes at least one reinforcing rib disposed at a corner of the end frame to enhance structural strength.

In order to achieve at least one of the above invention objectives, one aspect of the present invention provides a fuel cell stack device, comprising:

a plurality of fuel cell units;

two end frames, namely a first end frame and a second end frame; and

An adjusting and fixing assembly, wherein the plurality of fuel cell units are clamped between the first end frame and the second end frame and are adjusted and fixed by the adjusting and fixing assembly.

According to some embodiments, the adjustment and fixing assembly includes at least one positioning rod and at least one fixing element, the positioning rod has a positioning end, the positioning end has a conical positioning surface, the second end frame has a positioning hole, the positioning hole has a conical guide structure, the positioning rod passes through the positioning hole, and is positioned on the second end frame through the cooperation of the conical positioning surface and the positioning hole.

According to some embodiments, the positioning end has an auxiliary mounting hole, and the auxiliary mounting hole is used to cooperate with a mounting tool to fix the positioning rod.

According to some embodiments, the auxiliary mounting hole is a hexagonal hole.

According to some embodiments, the adjustment and fixing assembly includes at least one positioning rod and at least one fixing element, the positioning rod having a fixing end, the fixing end having a fixing hole, the fixing hole extending inward along the positioning rod, the fixing element being installed in the fixing hole, the first end frame having at least one mounting hole, the positioning rod extending into the mounting hole to fix the first end frame through the fixing element.

According to some embodiments, the fixing hole is an internal threaded hole, and the fixing element has a matching threaded surface so that the fixing element can be fixed to the positioning rod in a threaded connection manner.

According to some embodiments, the adjustment assembly includes at least one elastic adjustment element, the fixing element has a support cap, and the elastic element is arranged between the support cap and the first end frame to elastically adjust the force between the first fixing element and the first end frame.

According to some embodiments, the elastic adjustment element is composed of a plurality of butterfly springs cooperating with each other.

According to some embodiments, the positioning rod is a hollow structure.

According to some embodiments, the adjustment and fixing assembly includes a plurality of groups of the positioning rods and the fixing elements, which are respectively arranged on the circumference of the plurality of fuel cell units so as to fix the plurality of fuel cell units in a balanced manner.

According to some embodiments, the fuel cell stack device includes a plurality of interface components, which are integrated into the first end frame. The interface components are respectively connected to the plurality of fuel cell units and are used to connect matching components to facilitate power generation of the fuel cell stack device.

According to some embodiments, the plurality of connector components are selected to be a combination of: one or more of a hydrogen inlet connector, a hydrogen outlet connector, a hydrogen circulation inlet connector, a hydrogen circulation outlet connector, an air inlet connector, an air outlet connector, a coolant inlet connector and a coolant outlet connector.

According to some embodiments, the fuel cell stack device includes a plurality of sensors, which are integrated into the first end frame and monitor the medium passing through the corresponding interface components.

According to some embodiments, the sensor is selected from the group consisting of: one or more of a hydrogen pressure and temperature sensor, an air pressure and temperature sensor, and a coolant pressure and temperature sensor.

According to some embodiments, a first exhaust port is provided at the first end, and the first exhaust port is connected to the plurality of fuel cell units to facilitate exhaust control.

According to some embodiments, a second exhaust port is provided at the second end, and the second exhaust port is connected to the plurality of fuel cell units to facilitate exhaust control.

According to some embodiments, the first end frame has a plurality of joint holes for integrated installation of the plurality of joint components, so that the plurality of joint components are connected to the plurality of fuel cell units.

According to some embodiments, the fuel cell stack device includes at least one sealing element, which is disposed in the joint hole to seal the connection position between the interface component and the first end frame.

According to some embodiments, the joint component is a flange, and the flange is fixed to the end frame.

According to some embodiments, the first end frame has a plurality of sensor mounting holes for mounting the sensor.

According to some embodiments, the first end frame and the second end frame are provided with a plurality of external component fixing holes to install and fix external components to the first end frame and the second end frame to encapsulate the plurality of fuel cell units.

According to some embodiments, the fuel cell stack device includes at least one insulating layer, which is arranged in conjunction with the first end frame and/or the second end frame to insulate and isolate the plurality of fuel cell units from the end frame.

According to some embodiments, the insulating layer has a plurality of through holes, which are arranged in conjunction with the end frame to facilitate the connection of the plurality of fuel cell units.

According to some embodiments, the insulating layer has an extension tube extending into the joint hole of the end frame.

According to some embodiments, the fuel cell stack device includes a sealing element, which is disposed in the joint hole to seal the joint between the insulation layer and the end frame.

According to some embodiments, the top surface of the first end frame is a mesh structure.

According to some embodiments, the first end frame includes a main frame, a connecting rib and a reinforcing rib, the connecting rib is connected to the inside of the main frame to form a diamond-shaped structure to provide a fixed position for the multiple joint components, and the reinforcing rib is arranged at the corner position of the main frame to enhance the structural strength.

According to some embodiments, the matching component is selected from one or more of: a hydrogen supply device, an air supply device, and a coolant supply device.

Another aspect of the present invention provides a fuel cell stack device, comprising

a plurality of fuel cell units;

Two end frames, namely a first end frame and a second end frame;

an adjusting and fixing assembly, wherein the plurality of fuel cell units are clamped between the first end frame and the second end frame and fixed by the adjusting and fixing assembly; and

A plurality of interface components are integrated into the first end frame, and the interface components are respectively connected to the plurality of fuel cell units for connecting matching components to facilitate the power generation operation of the fuel cell stack device.

According to some embodiments, the interface component includes a hydrogen inlet connector, a hydrogen outlet connector, a hydrogen circulation inlet connector, a hydrogen circulation outlet connector, an air inlet connector and a hydrogen outlet connector to facilitate connecting mating components to provide hydrogen and air to the multiple fuel cell units.

According to some embodiments, the interface component includes a coolant inlet connector and a coolant outlet connector to facilitate connection with the mating component to provide coolant to the plurality of fuel cell units.

According to some embodiments, the fuel cell stack device includes a plurality of sensors, which are integrated into the first end frame and monitor the medium passing through the corresponding interface components.

According to some embodiments, the sensor is selected from the group consisting of: one or more of a hydrogen pressure and temperature sensor, an air pressure and temperature sensor, and a coolant pressure and temperature sensor.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective schematic diagram of a fuel cell stack device according to an embodiment of the present invention.

FIG. 2 is a perspective schematic diagram of a fuel cell stack device according to the above embodiment of the present invention from another angle.

FIG. 3 is an exploded schematic diagram of a fuel cell stack device according to the above embodiment of the present invention.

FIG. 4 is a partial cross-sectional schematic diagram of a fuel cell stack device according to the above embodiment of the present invention, used to illustrate the end frame and the adjustment and fixing assembly.

FIG. 5 is a schematic diagram of a positioning rod of a fuel cell stack device according to the above embodiment of the present invention.

FIG. 6 is a schematic diagram of a first end frame of a fuel cell stack device according to the above embodiment of the present invention.

FIG. 7 is a partial cross-sectional schematic diagram of a first end frame of a fuel cell stack device according to the above embodiment of the present invention, for illustrating a sealing structure.

FIG. 8 is a schematic diagram of a second end frame of a fuel cell stack device according to the above embodiment of the present invention.

FIG. 9 is a partial cross-sectional schematic diagram of a second end frame of a fuel cell stack device according to the above embodiment of the present invention, illustrating an exhaust port.

FIG. 10 is a schematic diagram of a modified implementation of the above embodiment according to the present invention.

FIG. 11 is a schematic block diagram of a fuel cell stack system according to the above embodiment of the present invention.

FIG. 12 is a schematic diagram at an angle of a fuel cell stack device according to a second embodiment of the present invention.

FIG. 13 is a schematic diagram of a fuel cell stack device according to a second embodiment of the present invention from another angle.

FIG. 14 is a schematic cross-sectional view of a fuel cell stack device according to a third embodiment of the present invention.

Detailed ways

The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

1 to 11 show a fuel cell stack device 100 and a power generation system 1 according to an embodiment of the present invention. The fuel cell stack device 100 includes a plurality of fuel cell units 10, two end frames 20, and an adjustment and fixing assembly 30. The plurality of fuel cell units 10 are clamped between the two end frames 20, and the adjustment and fixing assembly 30 detachably fixes the two end frames 20. In other words, the plurality of fuel cell units 10 are clamped and fixed between the two end frames 20 by the adjustment and fixing assembly 30.

The fuel cell stack device 100 can be applied to a power generation system 1 to generate electric energy in cooperation with other components of the fuel cell power generation system 1. Specifically, referring to FIG. 11, the fuel cell power generation system 1 may include the fuel cell stack device 100, a hydrogen supply device 200, a control device 300, an air supply device 400 and a coolant supply device 500. The hydrogen supply device 200 transmits hydrogen to the fuel cell stack device 100 to provide a reaction fuel, the air supply device 400 filters the air and reacts the air to the fuel cell stack device 100, the coolant supply device 500 provides coolant to the fuel cell stack device 100, and the control device 300 controls the operation of the fuel cell system, that is, controls the operation of the fuel cell stack device 100, the hydrogen supply device 200, the air supply device 400 and the coolant supply device 500. The integrated fuel cell device 100 can be connected to a heat exchange assembly 600, such as an intercooler, for dissipating the heat generated by the integrated fuel cell device 100 during operation.

Further, according to this embodiment of the present invention, the two end frames 20 are respectively a first end frame 21 and a second end frame 22. That is, the plurality of fuel cell units 10 are clamped and fixed between the first end frame 21 and the second end frame 22.

The first end frame 21 and the second end frame 22 each include a main frame 211 , 221 and a plurality of connecting ribs 212 , 222 , wherein the plurality of connecting ribs 212 , 222 are connected to a diamond-shaped mesh structure inside the main frame 211 , 221 .

It is worth mentioning that the traditional end plate is a metal flat plate structure, so it requires more material consumption, and the clamping force is not easy to control during the flat plate clamping process. According to the present invention, the first end frame 21 and the second end frame 22 are composed of a mesh structure composed of the main frame 211, 221 and the multiple connecting ribs 212, 222, rather than an integral flat plate structure, which reduces material consumption and reduces weight. At the same time, the mesh structure provides a convenient installation position for subsequent integrated components. The structure in the present invention can well balance the clamping force of the first end frame 21 and the second end frame 22, enhance the sealing between the multiple fuel cell units 10, and reduce material consumption and reduce the weight of the overall fuel cell device. More specifically, the first end frame 21 can be a front end frame.

The main frame 211, 221 may be a square frame structure with a flat bottom surface, and the connecting ribs 212, 222 are arranged on the inner side of the bottom surface of the square frame structure. In other words, the side close to the multiple fuel cell units 10 is a flat plane, and the side away from the multiple fuel cell units 10 is a mesh structure, so that the overall structural strength of the main frame 211, 221 is strengthened by the connecting ribs 212, 222 while ensuring installation flatness, and reducing deformation.

The first end frame 21 and the second end frame 22 each include at least one reinforcing rib 213, 223, and the reinforcing rib 213, 223 is arranged at the corner position of the main frame 211, 221 to enhance the structural strength of the main frame 211, 221. The reinforcing rib 213, 223 may be an arc-shaped structure. It is worth mentioning that in the structural strength CAE analysis, the corner position of the frame is a structural weak point position, and the structural weak point is reinforced by the arrangement of the reinforcing rib 213, 223 at the corner position, thereby reducing the material utilization while ensuring the structural strength of the first end frame 21 and the second end frame 22.

The reinforcing ribs 213, 223 can be provided on the first end frame 21 and/or the second end frame 22 as required, that is, the number and specific shape of the reinforcing ribs 213, 223 are not limited to the present invention. For example, one reinforcing rib 213, 223 is provided on the first end frame 21, and three reinforcing ribs 213, 223 are provided on the second end frame 22, respectively located at three corner positions.

The adjustment and fixing assembly 30 includes a plurality of positioning rods 31 and a plurality of fixing elements 32. Accordingly, the first end frame 21 has a plurality of mounting holes 214, and the second end frame 22 has a plurality of positioning holes 224. Each of the positioning rods 31 is suitable for passing through the mounting holes 214 of the first end frame 21 and the positioning holes 224 of the second end frame 22, and the fixing elements 32 assemble and fix the first end frame 21 and the second end frame 22 as well as the plurality of fuel cell units 10 thereof.

That is, during the assembly process, the multiple fuel cell units 10 are arranged between the first end frame 21 and the second end frame 22, and then the first end frame 21 and the second end frame 22 are fixed by the adjustment and fixing assembly 30, so that the multiple fuel cell units 10 are clamped between the first end frame 21 and the second end frame 22, so that the multiple fuel cell units 10 are sealed and connected to each other to form a sealed reaction space.

In this embodiment of the present invention, the mounting hole 214 is provided on the first end frame 21, the positioning hole 224 is provided on the second end frame 22, and the positioning rod 31 cooperates with the mounting hole 214 and the positioning hole 224 for installation and fixation, thereby clamping and fixing the multiple fuel cell units 10 between the first end frame 21 and the second end frame 22. In other embodiments of the present invention, the mounting hole 214 is provided on the second end frame 22, the positioning hole 224 is provided on the first end frame 21, and the positioning rod 31 cooperates with the mounting hole 214 and the positioning hole 224 for installation and fixation, thereby clamping and fixing the multiple fuel cell units 10 between the first end frame 21 and the second end frame 22. In other embodiments, a mixed arrangement of the mounting holes 214 and the positioning holes 224 may be adopted. For example, the mounting holes 214 and the positioning holes 224 are respectively arranged on the first end frame 21 and the second end frame 22, and the positioning holes 224 are installed in coordination with different installation methods, so that the multiple fuel cell units 10 are clamped and fixed between the first end frame 21 and the second end frame 22. Based on the concept of the present invention, the installation position and number of the mounting holes 214 and the positioning holes 224 are not limitations of the present invention.

Further, each positioning rod 31 is a rod-shaped structure, extending between the first end frame 21 and the second end frame 22. The positioning rod 31 has a positioning end 312, and the positioning end 312 is suitable for being positioned in the positioning hole 224 of the second end frame 22, so as to determine the relative position of the positioning rod 31 and the second end frame 22. In other words, when one end of the positioning rod 31 passes through the positioning hole 224, the positioning end 312 is blocked by the positioning hole 224, so that the positioning rod 31 will not leave the positioning hole 224.

Furthermore, the positioning end 312 has a conical positioning surface 3121, and correspondingly, the positioning hole 224 has a conical guiding structure, so that when the positioning end 312 of the positioning rod 31 enters the positioning hole 224, the conical positioning surface 3121 is guided by the positioning hole 224 with a conical structure to be quickly and accurately positioned in the positioning hole 224.

Furthermore, the positioning end 312 has an auxiliary mounting hole 3122, and the auxiliary mounting hole 3122 is used to cooperate with the mounting tool, and the mounting tool is used to fix the fixing element 32 and the positioning rod 31. For example, in the process of rotationally fixing the fixing element 32, the positioning rod 31 is fixed by the mounting tool to prevent the relative movement between the positioning rod 31 and the fixing element 32, so that the fixing element 32 is smoothly fixed to the positioning rod 31, and the plurality of fuel cell units 10 are clamped by the first end frame 21 and the second end frame 22.

The auxiliary mounting hole 3122 may be a hexagonal hole, so as to cooperate with a hexagonal tool to fix the positioning rod 31, that is, when the fixing element 32 is rotated, the positioning rod 31 may be fixed by a hexagonal tool, so that the positioning rod 31 does not rotate with it, thereby quickly fixing the fixing element 32. Of course, the auxiliary mounting hole 3122 may also be other shapes.

The positioning rod 31 includes a fixed end 311, and the fixed end 311 has a fixing hole 3111, and the fixing hole 3111 extends inwardly along the longitudinal extension direction of the positioning rod 31, and is used to install the fixing element 32. Specifically, the fixing hole 3111 can be an internal threaded hole, and the fixing element 32 has a matching threaded surface 321, so that the fixing element 32 is fixed to the internal threaded hole by threaded connection.

The fixing element 32 includes a butting cap 322 disposed above the matching thread surface 321 , so that during the process of screwing the thread in, the butting cap 322 is close to the first end frame 21 to press the first end frame 21 .

In other words, of the two ends of the positioning rod 31, one end is the positioning end 312, which cooperates with the positioning hole 224 of the second end frame 22 to position the relative positions of the positioning rod 31 and the second end frame 22, and the other end is provided with the fixing hole 3111, which cooperates with the fixing element 32, and the positioning rod 31 passes through the positioning hole 224 and extends to the mounting hole 214 of the first end frame 21, and is fixed from the outside to the inside by the fixing element 32. It is worth mentioning that the fixing element 32 is connected to the inside of the positioning rod 31, and the first end frame 21 is pressed by the abutment cap 322 of the fixing element 32, so when assembling, the positioning rod 31 does not need to extend out of the mounting hole 214 of the first end frame 21.

The adjusting and fixing assembly 30 includes an elastic adjusting element 33 . The elastic adjusting element 33 is disposed between the fixing element 32 and the first end frame 21 to elastically adjust the pressure between the fixing element 32 and the first end frame 21 .

Further, the elastic adjustment element 33 is disposed between the abutment cap 322 of the fixing element 32 and the first end frame 21, and the elastic adjustment element 33 is sleeved around the mating thread surface 321. When the fixing element 32 is threadedly screwed close to the first end frame 21, the elastic adjustment element 33 is elastically supported between the bottom surface of the abutment cap 322 and the top surface of the first end frame 21, so that the clamping force of the first end frame 21 and the second end frame 22 on the plurality of fuel cell units 10 is elastically controlled by the elastic adjustment element 33 cooperating with the screwing amount of the fixing element 32.

It is worth mentioning that, preferably, the elastic adjustment element 33 is composed of a plurality of disc springs, so that the superposition characteristics of the disc springs are used to adjust the force between the fixing element 32 and the first end frame 21. More specifically, the clamping force of the first end frame 21 and the second end frame 22 on the plurality of fuel cell units 10 is adjusted by the performance of the disc springs. For example, when the connection between the fixing element 32 and the positioning rod 31 tends to loosen, the elastic adjustment element 33 stretches to compensate for the possible looseness of the first end frame 21 and the second end frame 22, so that the clamping force of the first end frame 21 and the second end frame 22 on the plurality of fuel cells tends to the original clamping force, thereby maintaining a stable clamping state. In other words, the deformation and tension characteristics of the disc spring are used to prevent the fixing element 32 from loosening and to perform displacement compensation, and the superposition of the plurality of disc springs can be matched and combined according to the requirements of different pressing forces or deformation compensation amounts of the first end frame 21 and the second end frame 22, so as to obtain an ideal loading characteristic. For example, when all the disc springs are stacked in the forward direction, the maximum load can be obtained, and when they are stacked in the reverse direction one by one, the maximum deformation can be obtained.

Furthermore, the elastic adjustment element 33 is elastically supported between the abutting cap 322 of the fixing element 32 and the first end frame 21 , thereby preventing the abutting cap 322 from directly contacting the first end frame 21 and damaging the end frame.

According to this embodiment of the present invention, the positioning rod 31 is a hollow structure, so that the mass of the positioning rod 31 is reduced.

According to this embodiment of the present invention, the plurality of positioning rods 31 are evenly arranged on the circumference of the plurality of fuel cell units 10, so as to evenly and stably clamp and fix the plurality of fuel cell units 10. That is, the fuel cell device includes a plurality of positioning rods 31 and a plurality of fixing elements 32. Accordingly, the first end frame 21 has a plurality of mounting holes 214, and the second end frame 22 has a plurality of positioning holes 224, which are evenly arranged on the edge areas of the first end frame 21 and the second end frame 22, respectively, so as to evenly fix the plurality of positioning rods 31 and the plurality of fixing elements 32 on the circumference of the plurality of fuel cell units 10.

In another embodiment of the present invention, one end of each positioning rod 31 can be fixed to the first end frame 21 or the second end frame 22, and the other end passes through the second end frame 22 or the first end frame 21, and then the first end frame 21 and the second end frame 22 and the plurality of fuel cell units 10 are assembled and fixed by the fixing element 32. That is, the setting method of the adjustment and fixing assembly 30 can be set in a direction opposite to that of the first embodiment.

The first end frame 21 can be made by integrally forming metal, such as casting.

According to this embodiment of the present invention, the fuel cell integrates a plurality of interface components 40, and the plurality of interface components 40 are connected to the plurality of fuel cell units 10, so as to facilitate the connection of matching equipment and facilitate the operation of the fuel cell stack device 100. The matching equipment includes, but is not limited to, hydrogen supply equipment 200, air supply equipment 400, and coolant supply equipment 500. In other words, the fuel cell stack device 100 includes the plurality of interface components 40, which are used to connect the matching equipment so as to provide working medium for the plurality of fuel cell units 10.

Further, the hydrogen supply equipment 201 includes, but is not limited to, a hydrogen circulation pump and a hydrogen storage tank, the air supply equipment 202 includes, but is not limited to, an air supercharger, an air filter, an intercooler, and a humidifier, and the coolant supply equipment 203 includes, but is not limited to, a water tank and a water pump.

Further, the multiple interface components 40 are integrated into the first end frame 21 and/or the second end frame 22. According to this embodiment of the present invention, the multiple interface components 40 are integrated into the first end frame 21. The corresponding end of the first end frame 21 can be an end integrating the hydrogen outlet and inlet, the air inlet and outlet, and the coolant inlet and outlet. Of course, in other embodiments of the present invention, the interface component 40 can also be integrated into the second end frame 22 or the second end frame 22 and the first end frame 21, that is, the interface component 40 can be integrated into the first end frame 21 or the first end frame 21 alone, or can be integrated into the first end frame 21 and the second end frame 22 respectively. It should be understood by those skilled in the art that, based on the concept of the present invention, the integration position of the interface component 40 is not a limitation of the present invention.

According to this embodiment of the present invention, the first end frame 21 is provided with a plurality of joint holes 215 to facilitate the integrated installation of the interface component 40. For example, the interface component 40 is implemented as a flange to facilitate the installation of external mating components through the flange. That is, the fuel cell stack device 100 includes a plurality of flanges, which are respectively installed in the joint holes 215 to provide a mounting interface. Furthermore, the plurality of flanges are respectively two air interface component 40 flanges, two hydrogen interface component 40 flanges, and two coolant interface component 40 flanges. More specifically, the flanges are fixed to the end frame by bolts and are connected to the joint holes 215.

Specifically, in this embodiment of the present invention, the multiple joint holes 215 include a hydrogen inlet joint hole 2151, a hydrogen outlet joint hole 2152, an air inlet joint hole 2153, an air outlet joint hole 2154, a coolant inlet joint hole 2155, a coolant outlet joint hole 2156, a hydrogen circulation inlet joint hole 2157, and a hydrogen circulation outlet joint hole 2158. That is to say, the hydrogen inlet connector 41 of the interface component 40 is integrated into the hydrogen inlet connector hole 2151, the hydrogen outlet connector 42 is integrated into the hydrogen outlet connector hole 2152, the air inlet connector 43 is integrated into the air inlet connector hole 2153, the air outlet connector 44 is integrated into the air outlet connector hole 2154, the coolant inlet connector 45 is integrated into the coolant inlet connector hole 2155, the coolant outlet connector 46 is integrated into the coolant outlet connector hole 2156, the hydrogen circulation inlet connector 47 of the interface component 40 is integrated into the hydrogen circulation inlet connector hole 2157, and the hydrogen circulation outlet connector 48 is integrated into the hydrogen circulation outlet connector hole 2158.

The first end frame 21 is provided with a plurality of sensor mounting holes 216 for mounting sensors, for example but not limited to, a hydrogen pressure and temperature sensor 51, an air pressure and temperature sensor 52, and a coolant pressure and temperature sensor 53. Preferably, the sensor mounting holes 216 can be threaded holes, so as to facilitate mounting the sensors in a threaded manner. In this embodiment of the present invention, part of the sensors 50 are integrated into the interface component 40, and another part of the sensors 50 are integrated into the first end frame 21, for example, the air pressure and temperature sensor 52 is integrated into the air connectors 43, 44, the coolant pressure and temperature sensor 53 is integrated into the coolant connectors 45, 46, and the hydrogen pressure and temperature sensor 51 is integrated into the first end frame 21.

Referring to Figures 1, 8 and 9, the first end frame 21 is provided with a first exhaust interface 217, and the second end frame 22 is provided with a second exhaust interface 227. The exhaust interfaces 217 and 227 are used to connect the multiple fuel cell stack units with the outside to facilitate exhaust control, avoid uneven exhaust pressure inside the fuel cell unit 10, and ensure that the water mixed with gas and liquid is discharged in time to ensure the normal operation of the fuel cell device. More specifically, the exhaust interfaces 217 and 227 can be connected to a solenoid valve so that the exhaust interface 217 and 227 can be exhaust-controlled by the solenoid valve. It is worth mentioning that in this embodiment of the present invention, a dual exhaust method is set, that is, the exhaust interfaces 217 and 227 are set on the first end frame 21 and the second end frame 22 at the same time, which can exhaust the fuel cell stack device 100 more accurately and efficiently, thereby improving the working performance of the fuel cell stack device 100. More specifically, according to this embodiment of the present invention, the first exhaust interface 217 is provided at the coolant inlet joint 45 integrated with the first end frame 21, that is, the first exhaust interface 217 is connected to the coolant inlet joint 45, so as to exhaust at the coolant inlet joint 45. The second exhaust interface 227 is directly provided at the second end frame 21.

In other embodiments of the present invention, the exhaust interface can be selectively provided on the first end frame 21 and the second end frame 22 , that is, the first exhaust interface 217 is provided only on the first end frame 21 or the second exhaust interface 227 is provided only on the second end frame 22 .

The first end frame 21 and the second end frame 22 are provided with a plurality of external component fixing holes 218, 228 to facilitate installation of external components, such as, but not limited to, an outer shell, an external fixing frame. The external component fixing holes 218, 228 are arranged on the sides of the first end frame 21 and the second end frame 22, that is, the depth direction of the external component fixing holes 218, 228 extends transversely. More specifically, the first end frame 21 and the second end frame 22 are each provided with a plurality of external component fixing holes 218, 228, which are evenly distributed on the sides of the first end frame 21 and the second end frame 22 to facilitate stable fixing of the external components.

More specifically, in some embodiments of the present invention, referring to Figure 10, the fuel cell stack device 100 includes an outer shell 70, which is fixed to the first end frame 21 and the second end frame 22, so that the multiple fuel cell units 10 are encapsulated inside the outer shell 70 and isolated from the external environment.

The first end frame 21 and the second end frame 22 are provided with a peripheral sealing groove 2193, and the peripheral sealing groove 2193 is used to fill the sealing medium so as to seal the outer component to the first end frame 21 and the second end frame 22. For example, the peripheral sealing groove 2193 is provided with a sealing gasket, so that the first end frame 21, the second end frame 22 and the outer shell 70 are sealed.

More specifically, the outer shell 70 can be fixed to the outer component fixing holes 218, 228 of the first end frame 21 and the second end frame 22 by bolt elements, so that the multiple fuel cell units 10 are encapsulated inside and sealed by the sealing structure between the end frame 20 and the outer shell 70.

According to this embodiment of the present invention, the plurality of interface components 40 are respectively a hydrogen inlet connector 41, a hydrogen outlet connector 42, an air inlet connector 43, an air outlet connector 44, a coolant inlet connector 45, a coolant outlet connector 46, a hydrogen circulation inlet connector 47, and a hydrogen circulation outlet connector 48. Of course, in other embodiments of the present invention, the plurality of interface components 40 can be selectively configured, that is, it is not necessary to integrate the hydrogen inlet connector 41, the hydrogen outlet connector 42, the air inlet connector 43, the air outlet connector 44, the coolant inlet connector 45, the coolant outlet connector 46, the hydrogen circulation inlet connector 47, and the hydrogen circulation outlet connector 48 together, but one or more can be selected as needed. It should be understood by those skilled in the art that, based on the inventive concept of the present invention, the selection of the number of the interface components 40 is not a limitation of the present invention.

Specifically, the hydrogen inlet joint 41 and the hydrogen outlet joint 42 are respectively connected to the multiple fuel cell units 10, so as to supply hydrogen fuel to the multiple fuel cell units 10 through the matching components, so as to cooperate with the multiple fuel cell units 10 to complete the basic reaction and generate electrical energy. The air inlet joint 43 and the air outlet joint 44 are respectively connected to the multiple fuel cell units 10, so as to supply air fuel, more specifically, oxygen fuel to the fuel cell units 10 through the matching components. The coolant inlet joint 45 and the coolant outlet joint 46 are respectively connected to the fuel cell units 10, so as to supply coolant to the fuel cell units 10 through the matching components. The hydrogen circulation inlet joint 47 and the hydrogen circulation outlet joint 48 are respectively connected to the multiple fuel cell units 10, so as to facilitate the hydrogen circulation of the multiple fuel cell units 10.

Further, the fuel cell stack device 100 includes a plurality of sensors 50, which are respectively arranged at the plurality of interface components 40, so as to monitor the state information, such as temperature and pressure information, of the monitoring object passing through the interface components 40. According to this embodiment of the present invention, the plurality of sensors 50 are respectively a hydrogen pressure temperature sensor 51, an air pressure temperature sensor 52, and a coolant pressure temperature sensor 53.

More specifically, according to this embodiment of the present invention, the plurality of sensors 50 include two hydrogen pressure and temperature sensors 51, wherein one hydrogen pressure and temperature sensor 51 is disposed at the hydrogen inlet joint 41 to monitor the pressure and temperature information of the hydrogen entering the fuel cell unit 10, and one hydrogen pressure and temperature sensor 51 is disposed at the hydrogen outlet joint 42 to monitor the temperature and pressure information of the hydrogen flowing out of the plurality of fuel cell units 10. The plurality of sensors 50 include two air pressure and temperature sensors 52, wherein one air pressure and temperature sensor 52 is disposed at the air inlet joint 43 to monitor the pressure and temperature information of the air entering the plurality of fuel cell units 10, and one air pressure and temperature sensor 52 is disposed at the air outlet joint 44 to monitor the pressure and temperature information of the air flowing out of the plurality of fuel cell units 10. The multiple sensors 50 include two coolant pressure and temperature sensors 53, one of which is disposed at the coolant inlet connector 45 to monitor the pressure and temperature information of the coolant entering the multiple fuel cell units 10, and one of which is disposed at the coolant outlet connector 46 to monitor the pressure and temperature information of the coolant flowing out of the multiple fuel cell units 10. In other words, the hydrogen pressure and temperature sensor 51 is integrated into the hydrogen connector to improve the accuracy of the control of the hydrogen of the reaction fuel, the air pressure and temperature sensor 52 is integrated into the air connector to improve the accuracy of the control of the air flow state, and the coolant pressure and temperature sensor 53 is integrated into the coolant connector to improve the accuracy of the control of the coolant, thereby improving the overall performance of the fuel cell stack device 100, such as improving the power generation efficiency.

Furthermore, in different implementations, the multiple pressure and temperature sensors can be selectively integrated. That is, it is not necessary to integrate the hydrogen pressure and temperature sensor 51, the air pressure and temperature sensor 52, and the coolant pressure and temperature sensor 53 into the same embodiment. Instead, the location, quantity, and type of integration can be selected as needed. Those skilled in the art should understand that, based on the inventive concept of the present invention, the selection of the type and quantity of the sensors is not a limitation of the present invention.

The multiple sensors 50 may be communicatively connected to a control device, so that the control device controls the monitored object according to the information collected by the sensors 50. For example, the control device controls the supply of hydrogen according to the information collected by the hydrogen pressure and temperature sensor 51, controls the supply of air according to the information collected by the air pressure and temperature sensor 52, and controls the supply of coolant according to the information collected by the coolant pressure and temperature sensor 53.

It is worth mentioning that in traditional fuel cell devices, multiple fuel cells are pressed and assembled by two end plates and bolts, and only a hydrogen connector is set at the front end plate, so the function is single and it is not convenient to connect the matching parts. And because the traditional metal plate structure is not convenient for multiple integration, multiple integration cannot be achieved on the basis of the traditional fuel cell structure, and the convenience effect after integration will not be produced. And in traditional fuel cells, no sensors are set, which also shows that, on the one hand, the traditional structure is not easy to integrate, and on the other hand, in the original technical ideas, the control accuracy requirements for the reaction are relatively low.

According to some embodiments of the present invention, the plurality of interface components 40 are respectively disposed on the connection ribs 212, 222. That is, the mesh frame structure composed of the frame and the connection ribs 212, 222 in the present invention provides a convenient integration position for the integration of the plurality of interface components 40.

Further, according to this embodiment of the present invention, the fuel cell stack device 100 includes at least one insulating layer 80, which is stacked on the end frame. The insulating layer 80 is stacked between the first end frame 21 and the plurality of fuel cell units 10. In some embodiments, the fuel cell stack device 100 includes two insulating layers, which are respectively arranged at the positions of the first end frame 21 and the second end frame 22. Specifically, the insulating layer 80 is arranged between the end frame and the fuel cell unit 10, so as to insulate and isolate the end frame and the plurality of fuel cell units 10 to prevent the end frame from leaking electricity.

The insulating layer 80 has a plurality of perforations 81, so as to facilitate the installation of the plurality of fuel cell units 10 in cooperation with the first end frame 21. Specifically, the plurality of perforations 81 include a hydrogen inlet joint perforation, a hydrogen outlet joint perforation, an air inlet joint perforation, an air outlet joint perforation, a coolant inlet joint perforation, a coolant outlet joint perforation, a positioning rod perforation, a hydrogen circulation inlet joint perforation, and a hydrogen circulation outlet joint perforation.

The through holes 81 are connected to both sides, so as to facilitate the connection of the multiple fuel cell units 10 or to facilitate fixation.

Furthermore, the hydrogen inlet joint perforation and the hydrogen outlet perforation of the insulating layer 80 correspond to the hydrogen inlet joint hole and the hydrogen outlet joint hole of the first end frame 21 respectively, and are used to install the hydrogen interface component 40 to facilitate the connection of matching components, such as the hydrogen supply equipment 201, so as to facilitate the provision of hydrogen or hydrogen circulation for the multiple fuel cell units 10 through the matching components.

The air inlet joint perforation and the air outlet joint perforation of the insulating layer 80 correspond to the air inlet joint hole and the air outlet joint hole of the first end frame 21 respectively, and are used to install the air interface component 40 to facilitate the connection of matching components, such as the air supply device 202, so as to facilitate the supply of air to the multiple fuel cell units 10 through the matching components.

The coolant inlet joint perforation and the coolant outlet joint perforation of the insulating layer 80 correspond to the coolant inlet joint hole 2155 and the coolant outlet joint hole 2156 of the first end frame 21, respectively, and are used to install the coolant interface component 40 to facilitate the connection of the matching components, such as the coolant supply device 203, so as to facilitate the provision of coolant to the multiple fuel cell units 10 through the matching components.

The positioning rod through-hole of the insulating layer 80 close to the first end frame 21 corresponds to the mounting hole 214 of the first end frame 21 , so that the positioning rod 31 passes through to fix the insulating layer 80 .

The positioning rod through-hole of the insulating layer 80 close to the second end frame 22 corresponds to the positioning hole 224 of the second end frame 22 , so that the positioning rod 31 passes through to fix the insulating layer 80 .

Further, the insulating layer 80 includes a plurality of extension tubes 82, and the extension tubes 82 form the through holes 81. The extension tubes 82 are adapted to extend into the joint holes 215 of the first end frame 21, thereby isolating the first end frame 21 from the flowing medium and reducing the contact between the flowing medium and the metal parts. The extension tubes 82 may be integrally formed with the insulating layer 80, or may be fixed to the insulating layer 80 in other ways, such as adhesive fixation or bolt fixation.

More specifically, the insulating layer 80 includes a main body 83 and a plurality of extension tubes 82 . The extension tubes 82 extend outward from the main body 83 to form the through holes 81 .

Furthermore, the fuel cell stack device 100 includes a plurality of sealing elements 60 , which are respectively disposed on the end frames, so as to sealably install components, such as sealably install the interface component 40 and/or the sensor 50 .

Specifically, the plurality of sealing elements 60 are respectively disposed inside the joint hole 215 and the sensor mounting hole 216 of the first end frame 21, so as to sealably mount the interface component 40 and the sensor 50. The sealing element 60 may be disposed at the second exhaust interface 227 of the second end frame 22, so as to sealably connect an external component.

According to this embodiment of the present invention, the multiple sealing elements 60 include a first sealing element 61 and a second sealing element 62. The first sealing element 61 is arranged in the interface hole 215 to seal the connection position between the interface component 40 and the first end frame 21. The second sealing element 62 among the multiple sealing elements 60 is arranged in the interface hole 215 to seal the connection position between the insulating layer 80 and the first end frame 21.

Further, referring to Fig. 7, the first end frame 21 has a plurality of sealing grooves 290, and the sealing grooves 290 are used to install the sealing elements 60 so as to seal the connected parts. Specifically, the sealing grooves 290 include a first sealing groove 2191 connected to the joint hole 215, wherein the first sealing element 61 is arranged in the first sealing groove 2191. The first sealing groove 2191 is close to the joint part 40, and the sealing element 219 seals the position where the interface part 40 and the first end frame 21 are connected. The first end frame 21 has at least one second sealing groove 2192 connected to the joint hole 215, and the second sealing element 62 is close to the bottom, that is, close to the insulating layer 80, that is, the second sealing element 62 is arranged in the second sealing groove 2192 to seal the position where the insulating layer 80 and the first end frame 21 are connected.

It is worth mentioning that in FIG. 7 , the sealing structure at the location of the air outlet connector 44 is used to illustrate the sealing relationship between different components. It can be understood that in the fuel cell stack device 100, a corresponding sealing structure can be provided between two components, such as a connector and an end frame, or between an insulating layer and an end frame.

FIG12 is a schematic diagram of a fuel cell stack device according to a second embodiment of the present invention at an angle. FIG13 is a schematic diagram of a fuel cell stack device according to another embodiment of the present invention at another angle. In this embodiment of the present invention, the first end frame 21 is provided with the hydrogen inlet connector 41 and the hydrogen outlet connector 42, and the first end frame 21 does not integrate other interface components. In other words, the adjustment and fixing assembly 30 is matched to the first end frame 21 combined with the hydrogen inlet connector 41 and the hydrogen outlet connector 42 and the second end frame for adjustably fixing, so that the first end frame 21 and the second end frame 22 can clamp the fuel cell unit 10 more stably.

In some embodiments, the first end frame 21 and the second end frame 22 are flat plate structures. That is, the first end frame 21 and the second end frame 22 do not form a grid structure.

Furthermore, the first end frame 21 and the second end frame 22 may be plate-shaped structures with through holes, so as to facilitate the installation of the hydrogen inlet connector 41 and the hydrogen outlet connector 42 in a communicating manner.

FIG14 is a partial cross-sectional schematic diagram of a fuel cell stack device according to a third embodiment of the present invention. In this embodiment of the present invention, the first end frame 21 has a plurality of positioning holes 224, and the positioning holes 21 are used to position the positioning rod 31. More specifically, the positioning holes 224 of the first end frame 21 are used to position the positioning end 312 of the positioning rod 31. A plurality of positioning holes 224 are evenly arranged on the edge of the first end frame 21. The second end frame 22 has a plurality of mounting holes 214 for mounting the positioning rod 31. More specifically, the second end frame 22 and the mounting holes 214 are used to mount the fixed end 311 of the positioning rod 31.

The conical positioning surface 3121 of the positioning end 312 of the positioning rod 31 is adapted to the positioning hole 224 of the first end frame 21, so that when the positioning rod 31 is installed, the positioning end 312 is guided along the inner wall of the positioning hole 224 to quickly and accurately enter the positioning hole and is limited to the positioning hole 224 of the first end frame 21. The fixed end 311 of the positioning rod 31 extends into the mounting hole 214 of the second end frame 22 and is fixed to the second end frame 22 through the fixing element 32.

That is to say, in this embodiment of the present invention, the configuration direction of the adjusting and fixing component 30 is opposite to that of the adjusting and fixing component 30 of the first embodiment, and accordingly, the setting positions of the positioning holes 224 and the mounting holes 214 of the first end frame 21 and the second end frame 22 are also adjusted accordingly.

It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims (22)

1. A fuel cell stack apparatus, comprising:

A plurality of fuel cell units;

The two end frames are a first end frame and a second end frame respectively;

The adjusting and fixing assembly is used for adjusting and fixing the plurality of fuel cell units; and

A plurality of interface members integrated into the first end frame, the interface members respectively communicating with the plurality of fuel cell units for connecting mating members for facilitating power generation operation of the fuel cell stack assembly, wherein the first end frame has a plurality of joint holes for integrally mounting the plurality of interface members, the fuel cell stack assembly further comprises an insulating layer disposed between the first end frame and the plurality of fuel cell units, wherein the insulating layer comprises an extension tube extending into the joint holes of the first end frame, the fuel cell stack assembly further comprises a first sealing element and a second sealing element, wherein the first sealing element is disposed between a flange face of the interface member and the first end frame to form an axial seal between the interface member and the first end frame, and the second sealing element is disposed between the first end frame and the extension tube of the insulating layer to form a radial seal between the first end frame and the extension tube of the insulating layer, wherein the flange face of the interface member is not disposed between the extension tube and the flange face of the interface member.

2. The fuel cell stack assembly of claim 1, wherein the adjustment fixture assembly comprises at least one locating bar and at least one fixing element, the locating bar having a locating end with a tapered locating surface, the second end frame having a locating hole with a tapered guide structure, the locating bar passing through the locating hole and being positioned at the second end frame by cooperation of the tapered locating surface and the locating hole.

3. The fuel cell stack assembly according to claim 2, wherein the positioning end has an auxiliary mounting hole for securing the positioning rod in cooperation with an installation tool.

4. A fuel cell stack assembly according to claim 3, wherein said auxiliary mounting hole is a hexagon socket.

5. The fuel cell stack assembly of claim 1, wherein the adjustment fixture assembly includes at least one locating bar having a fixed end with a fixing hole extending inwardly along the locating bar and at least one fixing element mounted to the fixing hole, the first end frame having at least one mounting hole into which the locating bar extends to fix the first end frame by the fixing element.

6. The fuel cell stack assembly according to claim 5, wherein the fixing hole is an internally threaded hole, and the fixing member has a mating threaded surface so that the fixing member is screwed to be fixed to the positioning rod.

7. The fuel cell stack assembly of claim 5, wherein the adjustment securing assembly includes at least one resilient adjustment member having an abutment cap, the resilient adjustment member being disposed between the abutment cap and the first end frame to resiliently adjust the force between the securing member and the first end frame.

8. The fuel cell stack assembly according to claim 7, wherein the elastic regulating member is constituted by a plurality of belleville springs fitted to each other.

9. The fuel cell stack assembly according to any one of claims 2-8, wherein said positioning rod is a hollow structure.

10. The fuel cell stack apparatus according to any one of claims 2 to 8, wherein the adjustment fixing assembly includes a plurality of sets of the positioning rods and the fixing members, respectively, provided on the peripheral sides of the plurality of fuel cell units so as to uniformly fix the plurality of fuel cell units.

11. The fuel cell stack apparatus of claim 1, wherein the plurality of interface components are selected from the group consisting of: a hydrogen inlet connection, a hydrogen outlet connection, a hydrogen circulation inlet connection, a hydrogen circulation outlet connection, an air inlet connection, an air outlet connection, a coolant inlet connection, and a coolant outlet connection.

12. The fuel cell stack assembly of claim 1, wherein the fuel cell stack assembly includes a plurality of sensors integrated into the first end frame that monitor media passing in the corresponding interface members.

13. The fuel cell stack device according to claim 12, wherein the sensor is selected from the group consisting of: one or more of a hydrogen pressure temperature sensor, an air pressure temperature sensor, and a coolant pressure temperature sensor.

14. The fuel cell stack assembly of claim 1, wherein the first end is configured with a first exhaust port, the first exhaust port being in communication with the plurality of fuel cell units for exhaust control.

15. The fuel cell stack assembly of claim 1, wherein the second end is configured with a second exhaust port, the second exhaust port being in communication with the plurality of fuel cell units for exhaust control.

16. The fuel cell stack assembly of claim 1, wherein the interface member is a flange that is secured to the end frame.

17. The fuel cell stack assembly of claim 12, wherein the first end frame has a plurality of sensor mounting holes for mounting the sensors.

18. The fuel cell stack assembly according to any one of claims 1-8, wherein said first end frame and said second end frame are provided with a plurality of outer member fixing holes for mounting and fixing outer members to said first end frame and said second end frame to encapsulate said plurality of fuel cell units.

19. The fuel cell stack assembly of claim 1, wherein the insulating layer has a plurality of perforations that cooperate with the end frame to facilitate communication of the plurality of fuel cell units.

20. The fuel cell stack assembly according to any one of claims 1-8, wherein said first end frame top surface is a mesh structure.

21. The fuel cell stack assembly according to claim 1, wherein the first end frame comprises a main frame, a connection rib and a reinforcing rib, the connection rib being connected to the inside of the main frame to form a diamond-shaped division structure, the connection rib providing a fixing position for the plurality of interface members, the reinforcing rib being provided at a corner position of the main frame to enhance structural strength.

22. The fuel cell stack device according to claim 1, wherein the mating member is selected from the group consisting of: one or more of a hydrogen gas supply device, an air supply device, and a coolant supply device.