Hydrogen fuel cell system

Abstract

The utility model relates to the field of fuel cells, and discloses a hydrogen fuel cell system, which comprises a heat exchange module, a hydrogen inlet module and a hydrogen inlet joint for connecting the heat exchange module and the hydrogen inlet module, the hydrogen inlet joint is connected to the heat exchange module, the hydrogen inlet module is provided with a mounting position, and the hydrogen inlet joint is connected with the mounting position in an inserting manner and is used for communicating the heat exchange module and the hydrogen inlet module. The utility model has the beneficial effects that the heat exchange module and the hydrogen inlet module which are originally connected by a hydrogen supply pipe are changed to be connected through the hydrogen inlet joint, and the hydrogen inlet joint is inserted into the mounting position in the hydrogen inlet module, so that the hydrogen supply pipe is directly omitted; on the premise that communication of the heat exchange module and the hydrogen inlet module is not affected, the problems that the overall occupied size is large and cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the field of fuel cells, and particularly to a hydrogen fuel cell system. Background Art

[0002] The hydrogen intake module of a fuel cell system is an important part of the fuel cell engine system. The function of the hydrogen intake module is to suck out and reflux the excess hydrogen that has not reacted in the stack, and converge it with the newly supplied hydrogen to be re-supplied to the stack; the heat exchange module of the fuel cell system heats the hydrogen and then transports it to the hydrogen intake module to enable the temperature of the hydrogen entering the stack to meet the system requirements. The existing connection method between the heat exchange module and the hydrogen intake module is as Figure 1 shown. The heat exchange module and the hydrogen intake module are connected by a hydrogen supply pipe. The existing connection method between the heat exchange module and the hydrogen intake module has two disadvantages: 1. The overall occupied volume is large, affecting the layout of the fuel cell system; 2. The mechanical quality required for the connected hydrogen supply pipe is high, so the cost is high. Therefore, a new hydrogen fuel cell system is urgently needed to solve the above problems. Summary of the Utility Model

[0003] The purpose of this application is to provide a hydrogen fuel cell system to reduce the volume and cost of the heat exchange module and the hydrogen intake module.

[0004] The purpose of this application is achieved through the following technical solutions:

[0005] A hydrogen fuel cell system includes: a heat exchange module, a hydrogen intake module, and a hydrogen intake joint connecting the heat exchange module and the hydrogen intake module. The hydrogen intake joint is connected to the heat exchange module. The hydrogen intake module is provided with an installation position, and the hydrogen intake joint is inserted and connected to the installation position for communicating the heat exchange module and the hydrogen intake module.

[0006] In some embodiments of this application, it further includes a mounting plate, and the mounting plate is fixedly connected to the outer walls of the heat exchange module and the hydrogen intake module.

[0007] In some embodiments of this application, the mounting plate includes a first plate and a second plate, the first plate and the second plate are in a bent shape, the first plate is connected to the lower wall surface of the heat exchange module, and the second plate is connected to the side wall surface of the hydrogen intake module.

[0008] In some embodiments of this application, the first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen intake module by bolts.

[0009] In some embodiments of this application, the first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen intake module by snap fasteners.

[0010] In some embodiments of the present application, the first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by snap fasteners.

[0011] In some embodiments of the present application, the first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by lugs.

[0012] In some embodiments of the present application, the hydrogen inlet joint is provided with a circumferentially arranged stop portion, and the cross-section of the stop portion is larger than the cross-section of the installation position.

[0013] In some embodiments of the present application, the hydrogen inlet joint is snap-connected to the hydrogen inlet module to limit the shaking of the hydrogen inlet joint in the installation position.

[0014] In some embodiments of the present application, the snap-connection structure of the hydrogen inlet joint is arranged on the outer peripheral wall of the hydrogen inlet joint, and the snap-connection structure of the hydrogen inlet module is correspondingly arranged on the inner peripheral wall of the installation position.

[0015] In the hydrogen fuel cell system of the present application, the function of the heat exchange module is to increase the temperature of hydrogen, and the function of the hydrogen inlet module is to adjust the pressure and flow rate of hydrogen. The two need to be connected to form a hydrogen gas flow path. In the present application, the heat exchange module and the hydrogen inlet module that originally needed to be connected by a hydrogen supply pipe are changed to be connected by a hydrogen inlet joint. The hydrogen inlet joint is inserted into the installation position in the hydrogen inlet module, so that the hydrogen supply pipe is directly cancelled, and the problems of large overall occupied volume and high cost are solved without affecting the connection between the heat exchange module and the hydrogen inlet module. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a hydrogen fuel cell system in the prior art;

[0017] Figure 2 is a perspective view of the hydrogen fuel cell system of the present application;

[0018] Figure 3 is a top view of the hydrogen fuel cell system of the present application;

[0019] Figure 4 is Figure 3 a cross-sectional view of the A-A section in

[0020] In the figure, 1, heat exchange module; 2, hydrogen inlet module; 21, installation position; 3, hydrogen inlet joint; 31, stop portion; 4, mounting plate; 41, first plate; 42, second plate. Detailed Embodiments

[0021] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. used in the present application to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 2 - 4 shown, an embodiment of the present application provides a differential pressure liquid level gauge system, including: a heat exchange module 1, a hydrogen inlet module 2, and a hydrogen inlet joint 3 connecting the heat exchange module 1 and the hydrogen inlet module 2. The hydrogen inlet joint 3 is connected to the heat exchange module 1, and the hydrogen inlet module 2 is provided with an installation position 21. The hydrogen inlet joint 3 is inserted and connected to the installation position 21 for communicating the heat exchange module 1 and the hydrogen inlet module 2.

[0025] Based on the above technical solution, in the hydrogen fuel cell system of the present application, the function of the heat exchange module 1 is to increase the temperature of hydrogen, and the function of the hydrogen inlet module 2 is to adjust the pressure and flow rate of hydrogen. The two need to be connected to form a hydrogen gas flow path. In the present application, the heat exchange module 1 and the hydrogen inlet module 2 that originally needed to be connected by a hydrogen supply pipe are changed to be connected by a hydrogen inlet joint 3. By inserting the hydrogen inlet joint 3 into the installation position 21 in the hydrogen inlet module 2, the hydrogen supply pipe is directly cancelled, and the problems of large overall occupied volume and high cost are solved without affecting the connection between the heat exchange module 1 and the hydrogen inlet module 2.

[0026] In some embodiments of the present application, as Figure 2 、 Figure 3 shown, it further includes a mounting plate 4, and the mounting plate 4 is fixedly connected to the outer wall of the heat exchange module 1 and the outer wall of the hydrogen inlet module 2. The mounting plate 4 connects the outer wall of the heat exchange module 1 and the outer wall of the hydrogen inlet module 2, so that the two are fixedly connected, improving the connection strength between the two and avoiding the problem of reduced reliability caused by the single connection of the hydrogen inlet joint 3.

[0027] Specifically, as shown in Figure 2 , Figure 3 , the mounting plate 4 includes a first plate 41 and a second plate 42. The first plate 41 and the second plate 42 are bent. The first plate 41 is connected to the lower wall surface of the heat exchange module 1, and the second plate 42 is connected to the side wall surface of the hydrogen inlet module 2. The mounting plate 4 is configured to be bent, so as to adapt to the actual installation requirements of the heat exchange module 1 and the hydrogen inlet module 2, enable the first plate 41 and the second plate 42 to be installed at appropriate positions, and further improve the connection reliability between the heat exchange module 1 and the hydrogen inlet module 2.

[0028] More specifically, as shown in Figure 2 , Figure 3 , the first plate 41 and the second plate 42 are respectively fixedly connected to the heat exchange module 1 and the hydrogen inlet module 2 by bolts. Bolt connection is simple and reliable, with low cost, and can well achieve the purpose of fixed connection.

[0029] More specifically, as shown in Figure 2 , Figure 3 , the first plate 41 and the second plate 42 are respectively fixedly connected to the heat exchange module 1 and the hydrogen inlet module 2 by snap fasteners. As another fixing method, the mounting plate 4 can also be fixedly connected by snap fasteners, and can also simply and effectively achieve the purpose of fixed connection.

[0030] More specifically, as shown in Figure 2 , Figure 3 , the first plate 41 and the second plate 42 are respectively fixedly connected to the heat exchange module 1 and the hydrogen inlet module 2 by buckles. As another fixing method, the mounting plate 4 can also be fixedly connected by buckles, and can also simply and effectively achieve the purpose of fixed connection.

[0031] More specifically, as shown in Figure 2 , Figure 3 , the first plate 41 and the second plate 42 are respectively fixedly connected to the heat exchange module 1 and the hydrogen inlet module 2 by card feet. As another fixing method, the mounting plate 4 can also be fixedly connected by card feet, and can also simply and effectively achieve the purpose of fixed connection.

[0032] In some embodiments of the present application, as shown in Figures 2 - 4 , the hydrogen inlet joint 3 is provided with a circumferentially arranged stop portion 31, and the cross-section of the stop portion 31 is larger than the cross-section of the mounting position 21. The setting of the stop portion 31 can prevent the hydrogen inlet joint 3 from being directly inserted into the bottom of the hydrogen inlet module 2, play a limiting role, and protect the safety of the hydrogen inlet joint 3 and the hydrogen inlet module 2.

[0033] In some embodiments of the present application, as shown inFigure 4 As shown, the hydrogen inlet joint 3 is snap-connected to the hydrogen inlet module 2 to limit the shaking of the hydrogen inlet joint 3 in the installation position 21. In order to improve the connection stability and reliability between the hydrogen inlet joint 3 and the hydrogen inlet module 2, the hydrogen inlet joint 3 and the hydrogen inlet module 2 can be snap-connected, such as by means of a ring-shaped slot and buckle.

[0034] Specifically, as Figure 4 shown, the snap-connection structure of the hydrogen inlet joint 3 is arranged on the outer peripheral wall of the hydrogen inlet joint 3, and the snap-connection structure of the hydrogen inlet module 2 is correspondingly arranged on the inner peripheral wall of the installation position 21. The snap-connection between the hydrogen inlet joint 3 and the hydrogen inlet module 2 can be effectively realized through the snap-connection structures on the outer and inner peripheral walls, and it will not affect the setting and installation of other structures. At the same time, the snap-connection effect is also good.

[0035] In summary, for the hydrogen fuel cell system of the present application, the function of the heat exchange module 1 is to increase the temperature of hydrogen, and the function of the hydrogen inlet module 2 is to regulate the pressure and flow rate of hydrogen. The two need to be connected to form a hydrogen gas flow path. In the present application, the heat exchange module 1 and the hydrogen inlet module 2 that originally needed to be connected by a hydrogen supply pipe are changed to be connected through the hydrogen inlet joint 3. The hydrogen inlet joint 3 is inserted into the installation position 21 of the hydrogen inlet module 2, so that the hydrogen supply pipe is directly cancelled, and the problems of large overall occupied volume and high cost are solved without affecting the connection between the heat exchange module 1 and the hydrogen inlet module 2.

[0036] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A hydrogen fuel cell system, characterized in that, Including: a heat exchange module, a hydrogen inlet module, and a hydrogen inlet joint connecting the heat exchange module and the hydrogen inlet module. The hydrogen inlet joint is connected to the heat exchange module. The hydrogen inlet module is provided with a mounting position, and the hydrogen inlet joint is plugged into the mounting position for communicating the heat exchange module and the hydrogen inlet module.

2. The hydrogen fuel cell system according to claim 1, wherein It further includes a mounting plate fixedly connected to the outer walls of the heat exchange module and the hydrogen inlet module.

3. The hydrogen fuel cell system according to claim 2, wherein The mounting plate includes a first plate and a second plate which are bent. The first plate is connected to the lower wall surface of the heat exchange module, and the second plate is connected to the side wall surface of the hydrogen inlet module.

4. The hydrogen fuel cell system according to claim 3, characterized in that, The first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by bolts.

5. The hydrogen fuel cell system according to claim 3, wherein The first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by snap buttons.

6. The hydrogen fuel cell system according to claim 3, characterized in that, The first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by snap fasteners.

7. The hydrogen fuel cell system according to claim 3, characterized in that, The first plate and the second plate are respectively fixedly connected to the heat exchange module and the hydrogen inlet module by lugs.

8. The hydrogen fuel cell system according to claim 1, wherein The hydrogen inlet joint is provided with a circumferentially arranged stop portion, and the cross-section of the stop portion is larger than the cross-section of the mounting position.

9. The hydrogen fuel cell system according to claim 1, wherein The hydrogen inlet joint is snap-connected to the hydrogen inlet module for restricting the hydrogen inlet joint from shaking in the mounting position.

10. The hydrogen fuel cell system according to claim 9, characterized in that, The snap connection structure of the hydrogen inlet joint is arranged on the outer peripheral wall of the hydrogen inlet joint, and the snap connection structure of the hydrogen inlet module is correspondingly arranged on the inner peripheral wall of the mounting position.

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