CN220934131U - Water-cooled fuel cell stack integrated module, water-cooled fuel cell system and two-wheeled vehicle - Google Patents

Abstract

The utility model discloses a water-cooled fuel cell stack integrated module, a water-cooled fuel cell system and a two-wheel vehicle, which comprises the following components: the electric pile sub-module comprises an electric pile body, and an air inlet connector, an air outlet connector, a cooling water inlet connector, a cooling water outlet connector, a hydrogen outlet connector and a hydrogen inlet connector which are arranged on an end plate of the electric pile body; a hydrogen sub-module; an air sub-module; cooling sub-modules; and the support frame module is fixed on the end plate of the circuit pile body and is used for fixing the hydrogen sub-module, the air sub-module and the cooling sub-module. Compared with the traditional large-scale water-cooling fuel cell, the hydrogen sub-module, the air sub-module and the cooling sub-module are fixed on the end plate of the electric pile sub-module through the support frame module without configuring a main frame structure, and the end plate of the electric pile body bears the function of an integrated frame, so that the volume and the total quantity can be simplified, and the water-cooling fuel cell electric pile integrated module can be applied to a two-wheel vehicle.

Description

Water-cooled fuel cell stack integrated module, water-cooled fuel cell system and two-wheeled vehicle

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a water-cooled fuel cell stack integrated module, a water-cooled fuel cell system and a two-wheel vehicle.

Background

The use of green low-carbon energy with wide sources has very important significance, the hydrogen energy is used as secondary energy, the sources are very wide, the heat value of the hydrogen energy is three times that of gasoline, and no carbon is generated after combustion or electrochemical reaction, so the hydrogen energy is more and more valued and promoted in China.

The hydrogen fuel cell system is used as an important tool for using hydrogen energy, has the advantages of high efficiency (theoretical efficiency can reach more than 80 percent), zero emission, no pollution (the product is water only), good low-temperature adaptability (the hydrogen fuel cell system can be normally used at the temperature of (-30 ℃), high energy supply speed and the like, and is gradually widely applied to scenes such as long-distance heavy-duty highway traffic, rail traffic, ships, airplanes, independent power sources, cogeneration, light vehicles (such as two-wheelers and tricycles) and the like.

In the application scene of the two-wheel vehicle, the air-cooled fuel cell system is widely applied at home and abroad due to the simple structure, low cost, small volume and the like, but the membrane electrode of the air-cooled fuel cell system is generally exposed to the outside air and is easily influenced by the outside impurities, such as cooling flow channel blockage, catalyst deactivation and the like, so that the service life of the air-cooled fuel cell system is shortened. Even if the membrane electrode is arranged in a closed space, the air cooling stack can only roughly control the air quantity, so that the service life of the membrane electrode is shortened due to overdry or overdry. Therefore, the air-cooled fuel cell system generally has the problem of short service life, and the related experimental test data at present show that the air-cooled fuel cell system can only run for 2000-3000 hours and can not meet the use requirement under partial use occasions (such as take-out distribution).

Therefore, how to improve the service life of the fuel cell system for a two-wheeled vehicle is a technical problem that needs to be solved by those skilled in the art.

Disclosure of utility model

In view of the above, an object of the present utility model is to provide a water-cooled fuel cell stack integrated module for improving the service life of a fuel cell system for a two-wheeled vehicle;

The utility model aims to provide a water-cooled fuel cell system and a two-wheel vehicle with the water-cooled fuel cell stack integrated module.

In order to achieve the above object, the present utility model provides the following technical solutions:

A water-cooled fuel cell stack integrated module comprising:

The electric pile sub-module comprises an electric pile body, and an air inlet connector, an air outlet connector, a cooling water inlet connector, a cooling water outlet connector, a hydrogen outlet connector and a hydrogen inlet connector which are arranged on an end plate of the electric pile body;

the hydrogen sub-module comprises a hydrogen inlet pipeline communicated with the hydrogen inlet joint and a hydrogen outlet pipeline communicated with the hydrogen outlet joint;

An air sub-module comprising an air inlet pipeline communicated with the air inlet joint and an exhaust gas discharge pipeline communicated with the air outlet joint;

A cooling sub-module comprising a cooling water inlet interface and a cooling water outlet interface, and a deionizer arranged between the cooling water inlet interface and the cooling water outlet interface, the cooling water outlet interface being in communication with the cooling water inlet connector, the cooling water inlet interface and the cooling water outlet connector being for communication with a cooling circuit system;

And the support frame module is fixed on the end plate of the pile body and is used for fixing the hydrogen sub-module, the air sub-module and the cooling sub-module.

Optionally, in the above water-cooled fuel cell stack integrated module, one end of the hydrogen outlet pipeline is a hydrogen pipeline inlet, and the other end is provided with a hydrogen discharge electromagnetic valve;

The hydrogen inlet pipeline comprises a three-way joint, a hydrogen pipeline outlet pipe communicated with a first interface of the three-way joint, a hydrogen inlet electromagnetic valve of a second interface and a hydrogen pressure sensor of a third interface, wherein the hydrogen pipeline outlet pipe is communicated with the hydrogen inlet joint, and the hydrogen inlet electromagnetic valve is used for being communicated with a hydrogen supply system.

Optionally, in the above water-cooled fuel cell stack integrated module, the air inlet pipeline is sequentially connected in series with an air filter, an air compressor, a humidifier and an air inlet electromagnetic valve, the air inlet pipeline is communicated with the dry air side of the humidifier, and an outlet of the air inlet electromagnetic valve is communicated with the air inlet connector through a pipeline;

The tail gas exhaust pipeline is sequentially connected with a tail gas outlet electromagnetic valve and the humidifier in series, the tail gas exhaust pipeline is communicated with the wet air side of the humidifier, one end of the tail gas exhaust pipeline is a tail gas exhaust pipeline inlet, the other end of the tail gas exhaust pipeline is a tail gas exhaust pipeline outlet, and the tail gas exhaust pipeline inlet is communicated with the air outlet connector.

Optionally, in the above water-cooled fuel cell stack integrated module, the air filter and the deionizer are disposed above the stack sub-module.

Optionally, in the above water-cooled fuel cell stack integrated module, the air sub-module, the hydrogen sub-module, and the cooling sub-module are fixed around the outside of the stack sub-module.

Optionally, in the above water-cooled fuel cell stack integrated module, the air inlet joint, the cooling water inlet joint and the hydrogen outlet joint are injection molded into an integral structure, and form a first adapter;

The air outlet connector, the cooling water outlet connector and the hydrogen inlet connector are in an injection molding integrated structure, a second adapter is formed, and the first adapter and the second adapter are identical in structure.

Compared with the traditional air-cooled fuel cell system, the water-cooled fuel cell stack integrated module provided by the utility model can accurately control the flow and the temperature of the cooling liquid so as to control the temperature of the stack, thereby prolonging the service life which can reach 8000h after verification, and meeting the use requirements of users in special scenes. In addition, the utility model integrates the circuit sub-module, the hydrogen sub-module, the air sub-module and the cooling sub-module together, and fixes the hydrogen sub-module, the air sub-module and the cooling sub-module on the end plate of the circuit sub-module through the support frame module. Compared with the traditional large-scale water-cooling fuel cell, the hydrogen sub-module, the air sub-module and the cooling sub-module are fixed on the end plate of the electric pile sub-module through the support frame module without configuring a main frame structure, and the end plate of the electric pile body bears the function of an integrated frame, so that the volume and the total quantity can be simplified, and the water-cooling fuel cell electric pile integrated module can be applied to a two-wheel vehicle.

A water-cooled fuel cell system comprising:

A water-cooled fuel cell stack integrated module as described in any one of the above;

The hydrogen supply system is communicated with the hydrogen inlet joint through the hydrogen inlet pipeline;

The cooling path system comprises a heat exchange pipeline, and a cooling liquid kettle, a water pump and a radiator which are sequentially connected in series on the heat exchange pipeline, one end of the heat exchange pipeline is communicated with the cooling water outlet joint, the hydrogen supply system is connected in series on the heat exchange pipeline and is positioned at the upstream of the cooling liquid kettle, and the other end of the heat exchange pipeline is communicated with the cooling water inlet joint;

The output end of the DC/DC converter is electrically connected with the fuel cell system controller, and the input end of the DC/DC converter is electrically connected with the output terminal of the electric pile body.

Optionally, in the above water-cooled fuel cell system, the water-cooled fuel cell stack integrated module and the cooling circuit system are both disposed in the waterproof case.

Optionally, in the above water-cooled fuel cell system, a first vent is provided on both sides of one end of the waterproof case on the windward side, and a second vent is provided on one end of the waterproof case on the leeward side.

The water-cooled fuel cell system provided by the utility model has all the technical effects of the water-cooled fuel cell stack integrated module because of the water-cooled fuel cell stack integrated module, and the description is omitted herein.

A two-wheeled vehicle comprising a vehicle body, a vehicle controller and a water-cooled fuel cell system arranged on the vehicle body, wherein the water-cooled fuel cell system is the water-cooled fuel cell system.

Optionally, in the two-wheel vehicle, a power battery for auxiliary power supply is further included.

Optionally, in the two-wheel vehicle, the DC/DC converter is disposed on a head windward side of the vehicle body;

The fuel cell system controller and the whole vehicle controller are arranged at the tail of the vehicle body.

The two-wheeled vehicle provided by the utility model has all the technical effects of the water-cooled fuel cell system because the water-cooled fuel cell system is provided, and the description is omitted herein.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a two-wheeled vehicle according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a water-cooled fuel cell stack integrated module according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a pile sub-module according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a hydrogen submodule according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a cooling sub-module according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of an air sub-module according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a water-cooled fuel cell stack integrated module according to an embodiment of the present utility model;

Fig. 8 is a layout diagram of a cooling circuit system, a DC/DC converter, and a fuel cell system controller provided in an embodiment of the present utility model;

Fig. 9 is a schematic structural diagram of a waterproof case and an interior thereof according to an embodiment of the present utility model.

The meaning of the individual reference numerals in the figures is as follows:

100 is a water-cooled fuel cell stack integrated module, 110 is a stack sub-module, 111 is a stack body, 112 is an air inlet connector, 113 is a cooling water inlet connector, 114 is a hydrogen outlet connector, 115 is a hydrogen inlet connector, 116 is a cooling water outlet connector, 117 is an air outlet connector, 118 is a temperature sensor, 119 is an output terminal, 1100 is a mounting sheet metal part, 120 is a hydrogen sub-module, 121 is a hydrogen inlet solenoid valve, 122 is a hydrogen pipeline outlet pipe, 123 is a hydrogen pressure sensor, 124 is a hydrogen pipeline inlet, 125 is a hydrogen discharge solenoid valve, 126 is a three-way connector, 130 is an air sub-module, 131 is an air filter, 132 is an air compressor, 133 is a humidifier, 134 is an air inlet solenoid valve, 135 is an air pipeline outlet, 136 is a pressure sensor, 137 is an exhaust gas discharge pipeline inlet, 138 is an exhaust gas outlet solenoid valve, 139 is an exhaust gas discharge pipeline outlet, 140 is a cooling sub-module, 141 is a cooling water inlet interface, 142 is a deionizer, 143 is a cooling water outlet interface, 150 is a bracket module;

200 is a cooling path system, 201 is a cooling liquid kettle inlet joint, 202 is a cooling liquid kettle, 203 is a water pump, 204 is a radiator, 205 is a cooling water outlet joint;

300 is a DC/DC converter;

400 is a fuel cell system controller;

500 is a waterproof box, 501 is a first vent, 502 is a second vent;

600 is a hydrogen supply system;

700 is a power battery;

800 is a vehicle controller;

900 is a driving device.

Detailed Description

The core of the utility model is to provide a water-cooled fuel cell stack integrated module so as to improve the service life of a fuel cell system for a two-wheeled vehicle;

The core of the utility model is to provide a water-cooled fuel cell system and a two-wheel vehicle with the water-cooled fuel cell stack integrated module.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model discloses a water-cooled fuel cell stack integrated module, which aims to reduce the volume of a traditional water-cooled fuel cell, so that the water-cooled fuel cell stack integrated module can be applied to a two-wheel vehicle, and further the effect of higher service life of the water-cooled fuel cell is exerted.

As shown in fig. 2, the water-cooled fuel cell stack integrated module disclosed in the embodiment of the present utility model includes a stack sub-module 110, a hydrogen sub-module 120, an air sub-module 130, a cooling sub-module 140, and a rack sub-module 150.

As shown in fig. 3, the stack sub-module 110 includes a stack body 111 and air inlet joints 112, air outlet joints 117, cooling water inlet joints 113, cooling water outlet joints 116, hydrogen outlet joints 114, and hydrogen inlet joints 115 provided on end plates of the stack body 111.

In order to be applied to a two-wheeled vehicle, the two-wheeled vehicle has a large dimension in the traveling direction and a small dimension perpendicular to the traveling direction, and based on this, in the present embodiment, in order to facilitate the installation of the cell sub-module 110, the aspect ratio of the cell main body 111 may be set large, for example, the length 315mm, the width 120mm, and the height 110mm, and the length direction of the cell main body 111 may be arranged in the traveling direction of the two-wheeled vehicle when installed.

The air inlet connection 112, the cooling water inlet connection 113 and the hydrogen outlet connection 114 are injection molded as a unitary structure, for example, integrally injection molded using PPS (Polyphenylene sulfide ) to form the first adapter. The first adapter is installed at a stack medium inlet and outlet of one end of the stack body 111 in a pressing mode through a sealing ring and a bolt. Similarly, the air outlet joint 117, the cooling water outlet joint 116 and the hydrogen inlet joint 115 may be injection molded as an integral structure to form a second adapter, which is installed to the stack medium inlet and outlet at the other end of the stack body 111 by pressing with a sealing ring and a bolt. Meanwhile, in order to reduce the cost, the first adapter and the second adapter are identical in structure, so that the parts are universal.

In order to detect the temperature of the cooling liquid entering and exiting the galvanic pile, two temperature sensors 118 are respectively arranged on the two adapter joints (the first adapter joint and the second adapter joint), external threads at the installation end of each temperature sensor 118 are meshed with internal threads on the corresponding adapter joint, and a rubber ring is added in the middle for sealing.

The cathode and anode current collecting plates of the pile body 111 are formed with integrated output terminals 119 as interfaces for outputting electric energy, on which corresponding wiring holes can be respectively arranged, so as to more conveniently connect with cable terminals for load power consumption. Corresponding installation sheet metal parts 1100 can be arranged on two sides of the bottom of the pile body 111, and corresponding installation holes are formed in the installation sheet metal parts 1100 so as to be convenient to fix through fasteners.

The hydrogen sub-module 120 may include a hydrogen inlet line connected to the hydrogen inlet connection 115 and a hydrogen outlet line connected to the hydrogen outlet connection 114. The air sub-module 130 includes an air intake line that communicates with the air inlet connection 112 and an exhaust line that communicates with the air outlet connection 117.

As shown in fig. 4, the cooling sub-module 140 includes a cooling water inlet interface 141 and a cooling water outlet interface 143, and a deionizer 142 disposed between the cooling water inlet interface 141 and the cooling water outlet interface 143, the cooling water outlet interface 143 communicating with the cooling water inlet joint 113, the cooling water inlet interface 141 and the cooling water outlet joint 116 for communicating with the cooling circuit system 200.

Hydrogen in the hydrogen supply system 600 enters the inside of the pile body 111 through the hydrogen inlet pipeline and the hydrogen inlet joint 115; at the same time, the outside air also enters the inside of the pile body 111 through the air inlet pipeline and the air inlet connector 112; in the pile body 111, the hydrogen and oxygen in the air react electrochemically to generate direct current, and the direct current is transmitted to the DC/DC converter 300 through the output terminal 119 and the cable for the rear load, and the residual tail gas after reaction is discharged through the air outlet joint 117 and the tail gas discharge pipeline; the heat energy generated by the electrochemical reaction is transferred by means of the coolant liquid through the cooling water outlet connection 116 to the hydrogen supply system 600 for providing the heat required for releasing hydrogen from the solid state hydrogen storage.

The water-cooled fuel cell stack integrated module provided by the utility model adopts a strong integration scheme, and integrates the parts of the stack body 111 and an air path (an air sub-module 130) +a hydrogen path (a hydrogen sub-module 120) sensitive to flow resistance into a whole, so that the water-cooled fuel cell stack integrated module can be suitable for a narrow arrangement space of a two-wheel vehicle.

The support frame module 150 is fixed on the end plate of the stack body 111, and the support frame sub-module 150 is a support structure of the whole water-cooled fuel cell stack integrated module. Specifically, the sheet metal bending parts can be made of sheet metal bending parts, and a plurality of sheet metal bending parts can be configured according to the number of parts which need to be fixed. The support shelf module 150 may connect the sub-parts in the hydrogen sub-module 120, the air sub-module 130, and the cooling sub-module 140 through nuts and bolts of back welding, thereby achieving the functions of fixing the hydrogen sub-module 120, the air sub-module 130, and the cooling sub-module 140. Of course, the water-cooled fuel cell pile integrated module can be fixedly connected with the pile body 111 through bolts and nuts, so that the whole water-cooled fuel cell pile integrated module forms a strong integrated whole, and the narrow arrangement space of the two-wheeled vehicle is effectively utilized.

In summary, compared with the traditional air-cooled fuel cell system, the water-cooled fuel cell stack integrated module provided by the utility model can precisely control the flow and the temperature of the cooling liquid so as to control the temperature of the stack, thereby prolonging the service life which can reach 8000h after verification, and meeting the use requirements of users in special scenes. Furthermore, the present utility model integrates the circuit stack sub-module 110, the hydrogen sub-module 120, the air sub-module 130, and the cooling sub-module 140 together, and fixes the hydrogen sub-module 120, the air sub-module 130, and the cooling sub-module 140 on the end plate of the circuit stack sub-module 110 through the sub-frame module 150. Compared with the conventional large-sized water-cooled fuel cell, the hydrogen sub-module 120, the air sub-module 130 and the cooling sub-module 140 are fixed on the end plate of the electric pile sub-module 110 through the support frame module 150 without configuring a main frame structure, and the end plate of the electric pile body 111 bears the function of an integrated frame, so that the volume and the total amount can be simplified, and the water-cooled fuel cell electric pile integrated module can be applied to a two-wheeled vehicle.

As shown in fig. 4, one end of the hydrogen outlet pipeline is a hydrogen pipeline inlet 124, and the other end is provided with a hydrogen discharge electromagnetic valve 125. The hydrogen conduit inlet 124 may be a circular flexible interface to facilitate connection to the hydrogen outlet fitting 114 via a clamp. The hydrogen discharge electromagnetic valve 125 can be controlled to be opened by current so as to establish a certain positive pressure in the electric pile, and the hydrogen discharge electromagnetic valve 125 is provided with a circular rigid joint and can be connected to an exhaust gas discharge pipeline through a spring clamp and a rubber hose. The hydrogen discharge solenoid valve 125 may be connected to the bracket sub-module 150 by fasteners such as bolts.

The hydrogen inlet pipeline comprises a three-way joint 126 and a hydrogen pipeline outlet pipe 122 communicated with a first joint of the three-way joint 126, a hydrogen inlet electromagnetic valve 121 communicated with a second joint of the three-way joint 126, a hydrogen pressure sensor 123 communicated with a third joint of the three-way joint 126, wherein the hydrogen pipeline outlet pipe 122 is communicated with the hydrogen inlet joint 115, and the hydrogen inlet electromagnetic valve 121 is used for being communicated with a hydrogen supply system 600.

The end of the hydrogen inlet electromagnetic valve 121 is provided with a circular ring-shaped rigid joint, the outer ring of the hydrogen inlet electromagnetic valve 121 is provided with a raised pier head, the hydrogen inlet electromagnetic valve 121 can be communicated and sealed with the hydrogen supply system 600 through a spring clamp and a rubber hose, the opening degree of the hydrogen inlet electromagnetic valve 121 can be controlled through current so as to control the hydrogen quantity entering the electric pile, the hydrogen pipeline outlet pipe 122 is a circular ring-shaped flexible joint, the hydrogen pipeline outlet pipe is connected to the hydrogen inlet joint 115 through the clamp, and the hydrogen pressure sensor 123 can monitor the hydrogen pressure entering the electric pile body 111.

As shown in fig. 6, an air filter 131, an air compressor 132, a humidifier 133 and an air intake solenoid valve 134 are sequentially connected in series on an air intake pipe, and the air intake pipe is communicated with the dry air side of the humidifier 133, and an outlet of the air intake solenoid valve 134 is communicated with the air inlet joint 112 through a pipe (an outlet of the pipe is an air pipe outlet 135), and the air pipe outlet 135 is correspondingly communicated with the air inlet joint 112. The air intake line is also provided with a pressure sensor 136 for monitoring the air pressure.

The exhaust gas discharge pipeline is sequentially connected with an exhaust gas outlet electromagnetic valve 138 and a humidifier 133 in series, and is communicated with the wet air side of the humidifier 133, and moisture in the exhaust gas discharge pipeline can humidify dry air flowing in the air inlet pipeline after entering the humidifier 133. The exhaust line has an exhaust line inlet 137 at one end and an exhaust line outlet 139 at the other end, the exhaust line inlet 137 being in communication with the air outlet fitting 117.

The inlet and outlet of the air inlet electromagnetic valve 134 are circular rigid joints, the outer ring is provided with a raised pier head, the outer ring can be communicated with a corresponding rubber hose through a spring clamp, outside air is filtered by an air filter 131, the air compressor 132 is pressurized and accelerated, the humidifier 133 adjusts humidity, and the air inlet electromagnetic valve 134 is used for adjusting flow and then enters the pile body 111 through an air inlet joint 112. In order to obtain the water vapor required by air humidification, the wet air side of the humidifier 133 is connected with the air outlet joint 117 through a spring clamp and a rubber hose, a tail gas outlet electromagnetic valve 138 is further arranged in the middle, positive pressure is established for the interior of the electric pile body 111, and residual gas after the humidification process flows from the humidifier 133 to a tail gas discharge pipeline outlet 139 through a tail gas discharge pipeline.

The air filter 131 and the deionizer 142 are after-sales maintenance pieces, and are required to be replaced and maintained regularly, so that the air filter 131 and the deionizer 142 are conveniently disassembled and assembled, and the air filter 131 and the deionizer 142 are arranged above the electric pile sub-module 110, namely, at the top of the water-cooled fuel cell electric pile integrated module, so that shielding of other components on the air filter 131 and the deionizer 142 is reduced, and after-sales replacement is facilitated.

As shown in fig. 7, in an embodiment of the present utility model, in order to further reduce the volume of the water-cooled fuel cell stack integrated module, the outer space of the stack sub-module 110 is fully utilized, and the air sub-module 130, the hydrogen sub-module 120 and the cooling sub-module 140 are wrapped around and fixed to the outer side of the stack sub-module 110.

As shown in fig. 1, the embodiment of the present utility model also discloses a water-cooled fuel cell system mainly used for a two-wheeled vehicle, which includes a water-cooled fuel cell stack integrated module 100, a hydrogen supply system 600, a cooling circuit system 200, a DC/DC converter 300, and a fuel cell system controller 400.

The water-cooled fuel cell stack integrated module 100 is the water-cooled fuel cell stack integrated module 100 disclosed in the above embodiment, and since the water-cooled fuel cell stack integrated module 100 has the above high integration, all the technical effects of the water-cooled fuel cell stack integrated module 100 are achieved, and the description thereof is omitted herein. The hydrogen supply system 600 is used for storing and supplying hydrogen, and the hydrogen supply system 600 is communicated with the hydrogen inlet joint 115 through a hydrogen inlet pipeline.

As shown in fig. 8, the cooling circuit system 200 includes a heat exchange pipeline, and a cooling liquid pot 202, a water pump 203 and a radiator 204 sequentially connected in series on the heat exchange pipeline, wherein one end of the heat exchange pipeline is communicated with the cooling water outlet joint 116, the hydrogen supply system 600 is connected in series on the heat exchange pipeline and is positioned at the upstream of the cooling liquid pot 202, and the other end of the heat exchange pipeline is communicated with the cooling water inlet joint 141, namely, the cooling water outlet joint 205 of the radiator 204 is communicated with the cooling water inlet joint 141.

The cooling water in the electric pile sub-module 110 flows through the hydrogen supply system 600 through the cooling water outlet joint 116 for providing heat required by solid hydrogen storage and releasing hydrogen, then flows into the cooling water kettle 202 through the cooling water kettle inlet joint 201 between the hydrogen supply system 600 and the cooling water kettle 202 of the heat exchange pipeline, provides kinetic energy through the water pump 203 in sequence, and flows into the cooling water inlet joint 141 of the electric pile sub-module 110 after the temperature of the radiator 204 is reduced, filters conductive ion impurities through the deionizer 142, flows through the cooling water outlet joint 143 and the cooling water inlet joint 113 and flows into the electric pile body 111. In order to fully utilize the scattered arrangement space of the two-wheeled vehicle, the cooling circuit system 200 is disposed in front of the water-cooled fuel cell stack integrated module 100 (in front of the traveling direction) in a weakly integrated manner, thereby ensuring arrangement feasibility.

An output terminal of the DC/DC converter 300 is electrically connected to the fuel cell system controller 400, and an input terminal of the DC/DC converter 300 is electrically connected to the output terminal 119 of the stack body 111. The voltage at the input end of the DC/DC converter 300 is typically 15V to 22V, and is boosted to 48V by the internal BOOST circuit, and output to the fuel cell system controller 400, and is also synchronously reduced to 12V by the BUCK circuit, so as to supply power to the electric devices of the water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200.

Hydrogen in the hydrogen supply system 600 enters the inside of the pile body 111 through the hydrogen inlet pipeline and the hydrogen inlet joint 115; at the same time, the outside air also enters the inside of the pile body 111 through the air inlet pipeline and the air inlet connector 112; in the pile body 111, the hydrogen and oxygen in the air react electrochemically to generate direct current, and the direct current is transmitted to the DC/DC converter 300 through the output terminal 119 and the cable for the rear load, and the residual tail gas after the reaction is discharged through the air outlet joint 117 and the tail gas discharge pipeline and finally through the tail gas discharge pipeline outlet 139; the heat energy generated by the electrochemical reaction is transferred by means of the coolant liquid through the cooling water outlet connection 116 to the hydrogen supply system 600 for providing the heat required for releasing hydrogen from the solid state hydrogen storage.

As shown in fig. 9, in order to reduce the cost, in a two-wheeled vehicle, the sub-components of the water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200 cannot reach the waterproof level of IP67, and if the sub-components are integrated in the above manner, there is a risk of wading. To solve this problem, the water-cooled fuel cell system disclosed in this embodiment further includes a waterproof case 500, the waterproof case 500 may be manufactured by a plastic injection molding process, and metal inserts may be embedded in the mounting holes. The outer side of the waterproof box 500 is fixed on the whole vehicle frame through bolts passing through the metal inserts.

The water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200 are both provided to the waterproof case 500. The outer side of the waterproof box 500 can be connected with the whole vehicle frame, so that the height of the water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200 is raised, and the water-involved safety of the whole system is ensured. The top of the waterproof box 500 is a cushion of the two-wheel vehicle, so that the water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200 are in a closed space, thereby not only ensuring the waterproof and dustproof grade of the water-cooled fuel cell system, but also avoiding the cost increase caused by the water-cooled fuel cell stack integrated module 100 and each part independently reaching the IP 67. The hydrogen supply system 600 may also be disposed within the waterproof case 500.

The top of the waterproof box 500 is a cushion of a two-wheel vehicle, so the water-cooled fuel cell stack integrated module 100 and the cooling circuit system 200 are in a closed space, which is not beneficial to heat dissipation of components and dissipation of hydrogen under extreme conditions, in order to solve the problem, a first ventilation opening 501 is arranged at two sides of one end of the waterproof box 500 on the windward side, and a second ventilation opening 502 is arranged at one end of the waterproof box 500 on the leeward side. The first ventilation opening 501 and the second ventilation opening 502 can be designed in the form of a ventilation grille. The first ventilation opening 501 and the second ventilation opening 502 may be provided at the upper portion of the waterproof case 500, and the external air is sucked in from one of the first ventilation openings 501 (specifically, which of the first ventilation openings 501 is related to the position of the heat radiation fan, which is the heat radiation fan of the cooling circuit system 200) by the heat radiation fan, and then discharged to the other first ventilation opening 501 or the second ventilation opening 502 at the rear side, thereby achieving multiple design goals of the security in terms of water, ventilation, hydrogen gas, and the like.

The embodiment of the utility model also discloses a two-wheel vehicle, which comprises a vehicle body, a vehicle controller 800 and a water-cooling fuel cell system arranged on the vehicle body, wherein a driving device 900 for converting electric energy into mechanical energy is arranged on the vehicle body, and the water-cooling fuel cell system is the water-cooling fuel cell system disclosed in the embodiment, so that all the technical effects of the water-cooling fuel cell system are achieved, and the description is omitted herein. The two-wheeled vehicle may further be provided with a power battery 700 for auxiliary power supply to assist power supply by the power battery 700 at the time of start-up or when the torque is large.

The DC/DC converter 300 fully utilizes the arrangement space between the outer ornament of the vehicle head and the upright post, is arranged on the windward side of the vehicle head, can perform good heat dissipation by means of the ventilation grille, and ensures stable performance. The DC/DC converter 300 is provided with heat radiating fins on the windward side, and radiates heat by air flowing in through a grill on the housing while the vehicle is running. The fuel cell system controller 400 and the whole vehicle controller 800 are provided at the rear of the vehicle body. Corresponding mounting holes can be arranged on the fuel cell system controller 400 and the whole vehicle controller 800 and are fixed on the whole vehicle structural member through bolts. The fuel cell system controller 400 and the whole vehicle controller 800 have small heat generation, are arranged at the tail of the vehicle according to the rest whole vehicle space, have high arrangement positions, and have no wading risk.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not preclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (12)

1. A water-cooled fuel cell stack integrated module, comprising:

A pile sub-module (110) comprising a pile body (111) and an air inlet joint (112), an air outlet joint (117), a cooling water inlet joint (113), a cooling water outlet joint (116), a hydrogen outlet joint (114) and a hydrogen inlet joint (115) which are arranged on an end plate of the pile body (111);

A hydrogen sub-module (120) comprising a hydrogen inlet pipeline communicated with the hydrogen inlet joint (115) and a hydrogen outlet pipeline communicated with the hydrogen outlet joint (114);

An air sub-module (130) comprising an air intake line communicating with the air inlet joint (112) and an exhaust gas discharge line communicating with the air outlet joint (117);

A cooling sub-module (140) comprising a cooling water inlet interface (141) and a cooling water outlet interface (143) and a deionizer (142) arranged between the cooling water inlet interface (141) and the cooling water outlet interface (143), the cooling water outlet interface (143) being in communication with the cooling water inlet connection (113), the cooling water inlet interface (141) and the cooling water outlet connection (116) being for communication with a cooling circuit system (200);

And a support frame module (150) fixed on an end plate of the circuit stack body (111) and used for fixing the hydrogen sub-module (120), the air sub-module (130) and the cooling sub-module (140).

2. The water-cooled fuel cell stack integrated module according to claim 1, wherein one end of the hydrogen gas outlet pipeline is a hydrogen gas pipeline inlet (124) communicated with the hydrogen gas outlet joint (114), and the other end is provided with a hydrogen discharge electromagnetic valve (125);

The hydrogen inlet pipeline comprises a three-way joint (126), a hydrogen pipeline outlet pipe (122) communicated with a first interface of the three-way joint (126), a hydrogen inlet electromagnetic valve (121) of a second interface, and a hydrogen pressure sensor (123) of a third interface, wherein the hydrogen pipeline outlet pipe (122) is communicated with the hydrogen inlet joint (115), and the hydrogen inlet electromagnetic valve (121) is used for being communicated with a hydrogen supply system (600).

3. The water-cooled fuel cell stack integrated module according to claim 1, wherein an air filter (131), an air compressor (132), a humidifier (133) and an air intake solenoid valve (134) are sequentially connected in series on the air intake pipe, and the air intake pipe is communicated with the dry air side of the humidifier (133), and an outlet of the air intake solenoid valve (134) is communicated with the air inlet joint (112) through a pipe;

The tail gas exhaust pipeline is sequentially connected with a tail gas outlet electromagnetic valve (138) and a humidifier (133) in series, the tail gas exhaust pipeline is communicated with the wet air side of the humidifier (133), one end of the tail gas exhaust pipeline is a tail gas exhaust pipeline inlet (137), the other end of the tail gas exhaust pipeline is a tail gas exhaust pipeline outlet (139), and the tail gas exhaust pipeline inlet (137) is communicated with the air outlet joint (117).

4. A water cooled fuel cell stack integrated module according to claim 3, characterized in that the air filter (131) and the deionizer (142) are arranged above the stack sub-module (110).

5. A water cooled fuel cell stack integrated module according to claim 3, characterized in that the air sub-module (130), the hydrogen sub-module (120) and the cooling sub-module (140) are fixed around the outside of the stack sub-module (110).

6. The water-cooled fuel cell stack integrated module of any one of claims 1-5 wherein the air inlet connection (112), the cooling water inlet connection (113) and the hydrogen outlet connection (114) are injection molded as a unitary structure and form a first adapter;

The air outlet joint (117), the cooling water outlet joint (116) and the hydrogen inlet joint (115) are injection molded into an integrated structure, and a second adapter is formed, and the first adapter and the second adapter are identical in structure.

7. A water-cooled fuel cell system, comprising:

a water-cooled fuel cell stack integrated module (100) being a water-cooled fuel cell stack integrated module (100) according to any one of claims 1-6;

A hydrogen supply system (600) in communication with the hydrogen inlet connection (115) through the hydrogen inlet line;

The cooling circuit system (200) comprises a heat exchange pipeline and a cooling liquid kettle (202), a water pump (203) and a radiator (204) which are sequentially connected in series on the heat exchange pipeline, one end of the heat exchange pipeline is communicated with the cooling water outlet joint (116), the hydrogen supply system (600) is connected in series on the heat exchange pipeline and is positioned at the upstream of the cooling liquid kettle (202), and the other end of the heat exchange pipeline is communicated with the cooling water inlet joint (141);

the fuel cell system comprises a DC/DC converter (300) and a fuel cell system controller (400), wherein the output end of the DC/DC converter (300) is electrically connected with the fuel cell system controller (400), and the input end of the DC/DC converter (300) is electrically connected with an output terminal (119) of the electric pile body (111).

8. The water-cooled fuel cell system of claim 7, further comprising a waterproof case (500), wherein the water-cooled fuel cell stack integrated module (100) and the cooling circuit system (200) are both disposed in the waterproof case (500).

9. The water-cooled fuel cell system according to claim 8, wherein a first vent (501) is provided on both sides of an end of the waterproof case (500) on the windward side, and a second vent (502) is provided on an end of the waterproof case (500) on the leeward side.

10. A two-wheeled vehicle, characterized by comprising a vehicle body, a vehicle controller (800) and a water-cooled fuel cell system provided on the vehicle body, the water-cooled fuel cell system being the water-cooled fuel cell system according to any one of claims 7 to 9.

11. The two-wheeled vehicle of claim 10, further comprising a power battery (700) for auxiliary power supply.

12. The two-wheeled vehicle of claim 10, wherein the DC/DC converter (300) is disposed on a head-on face of the vehicle body;

The fuel cell system controller (400) and the whole vehicle controller (800) are arranged at the tail of the vehicle body.