CN201845828U

CN201845828U - Fuel cell stroke lengthening unit system

Info

Publication number: CN201845828U
Application number: CN2010202806221U
Authority: CN
Inventors: 周苏; 章桐; 余卓平; 李飞鸿; 陈凤祥; 马天才
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2011-05-25
Anticipated expiration: 2020-08-03

Abstract

The utility model relates to a fuel cell stroke lengthening unit system, which comprises a fuel cell module, a direct current/direct current (DC/DC) module and a master controller module, wherein the fuel cell module and the DC/DC module are connected through a lead, are respectively provided with a controller and communicate with the master controller module through the controller. The system also comprises a direct current/alternating current (DC/AC) module. The DC/AC module is respectively connected with the fuel cell module and the DC/DC module through the lead and is also provided with a controller communicating with the master controller module. The chemical energy of hydrogen and oxygen is converted into electric energy by the fuel cell to serve as energy input; the DC/DC module controls the wide-output range voltage of the fuel cell to be within the range required by a power bus; and the DC/DC module converts DC electric energy output by the fuel cell into 220V alternating current. Thereby, the utility model can be used as a fuel cell stroke lengthening unit which can be rapidly plugged to increase the driving range of an electric vehicle and can be used as an independent vehicle-mounted civil 220V alternating current power supply to be accessed into a civil power grid under the vehicle idle state.

Description

Fuel cell distance increasing unit system

Technical field

The utility model relates to the electric automobile field, especially the fuel cell distance increasing unit system of electric motor car.

Background technology

Existing fuel cell power system all is fixed, be fuel cell and storage battery and be fixed on structure on the vehicle frame, but the fuel cell cost is higher, and continuous development along with battery technology, the distance travelled that storage battery can provide separately can satisfy the requirement of moderate distance, so seeming in this class situation, fuel cell some waste solves the problems referred to above so need to design a kind of system.

The utility model content

The purpose of this utility model is to provide a kind of fuel cell distance increasing unit system, be one independently, the modular system of quick-speed plug, compact conformation, easy to use.

For reaching above purpose, solution of the present utility model is:

The utility model adopts independently, but plug, modular system configuration, with fuel cell system, the hydrogen storage becomes a modular integral body with conveying system with the DC/DC converter incorporates, realized the flexibility and the practicality of system.Formed a kind of novel automotive power.This system also has multipurpose, multi-functional characteristic simultaneously.When vehicle is idle, this module can be inserted civilian electric power networks by inverter, realize the notion of intelligent grid.This system also can use as emergency power supply separately in addition.

A kind of fuel cell distance increasing unit system, it comprises fuel cell module, DC/DC module and master controller module, is connected by lead between fuel cell module and the DC/DC module, both are equipped with controller, by this controller and master controller module communication.Thereby, but its fuel cell distance increasing unit that can be used as a quick-speed plug improves the driving course of motor vehicle.

It also comprises the DC/AC module, and it is connected by lead respectively with the DC/DC module with fuel cell module, and it also has the controller with the master controller module communication.And then as vehicle-mounted civilian 220V AC power independently and under the vehicle idle state, insert domestic power grid, the power accumulator that is aided with motor vehicle self, electric power networks is powered, alleviate the impact that peak of power consumption produces the electric power networks system in the time of working by day, realize the notion of vehicle-intelligent grid (Vehicle to Grid).

Described fuel cell comprises hydrogen storage and conveying system, fuel cell pile, and its chemical energy with hydrogen and oxygen is converted into electric energy and imports as the energy.

Described DC/DC module with the voltage control of fuel cell output area broad within the desired scope of power bus, its input voltage range should comprise the scope of fuel cell output voltage fluctuation, and rated power is greater than the power output that equals fuel cell, and its output voltage is determined by the voltage of the power bus in the electric motor car.

Described master controller module also communicates with external object, and it obtains the power output of system's expectation, peak power output, failure diagnosis and each module data uploading to entire car controller of the current system of notice entire car controller by the CAN bus from the outside.

Described DC/AC module is converted into the direct current energy of fuel cell output the alternating current of 220V.

Owing to adopted above technical scheme, the utlity model has following beneficial effect:

1. compact conformation independently becomes an energy source;

2. power and energy density height;

3. the plug fast of modularization light-weight design is installed;

4. have multiple function, multiple use.

Description of drawings

Fig. 1 is the structural representation of the utility model system.

Embodiment

Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.

The utility model is separated the dynamical system of fuel cell module and DC/DC module composition from the fuel cell hybrid system, form one independently, the modular system of quick-speed plug, this module also has multiduty characteristic simultaneously, for example as emergency power supply, vehicle power can be provided, perhaps be connected or the like with domestic power grid.

The utility model comprises: fuel cell module, DC/DC module, DC/AC module and controller module; Fuel cell module comprises hydrogen storage and conveying system and fuel cell pile itself.Fuel cell module connects by dc wire between DC/DC module and the DC/AC module.The effect of fuel cell is that hydrogen and oxygen electrochemical energy are converted to electric energy, is the energy source of whole system.The effect of DC/DC module be voltage control with fuel cell output area broad within the desired scope of power bus, guarantee the operate as normal of automotive power.The effect of DC/AC module is that the direct current energy that fuel cell is exported is converted into, the alternating current of the 220V that daily electrical network uses.Whole system adopts distributed control, each module all has its independent controller, the master controller of system is responsible for the coordination of intermodule work, failure diagnosis and with the communication work of outside, between each controller and to adopt baud rate with the communication of outside be the high speed Time Triggered bus form (TTCAN) of 500K.The separate controller of each module is that module itself is equipped with, but require it to have the CAN bus interface, master controller then needs being made by manufacturers or users, need reach following function: the power output of obtaining system's expectation by the CAN bus from the outside, inform the peak power output of the current system of entire car controller, failure diagnosis and each module data are to uploading of entire car controller or the like.But in order to realize the modularized design of quick-speed plug, entire system three parts have been divided into, these three parts are the volumes according to parts, the sequence of positions of weight and mounting arrangements is divided, wherein, first is hydrogen storage and conveying system, and second part is fuel cell pile and controller thereof, third part be main DCDC and with the interface of car load dynamical system.Three parts are installed on the vehicle one by one, the distance increasing unit system of the quick-speed plug that forms a whole at last, and satisfied the requirement that a people just can finish the loading and unloading task of system, improved the convenience that system uses greatly.

The rated output power that the utility model need be determined fuel cell according to the specific requirement and the taking into account system efficient of power system of electric automobile, the input voltage range of DC/DC module should comprise the scope of fuel cell output voltage fluctuation, and rated power is greater than the power output that equals fuel cell.The output voltage of DC/DC module is determined by the voltage of the power bus in the electric motor car.,, select the volume and weight reckling so the type selecting of all parts is satisfying under the prerequisite of performance requirement because but system is the design of plug flexibly.

But system of the present utility model can be used as the driving course that the fuel cell distance increasing unit of a quick-speed plug improves motor vehicle.Can also and under the vehicle idle state, insert domestic power grid as vehicle-mounted civilian 220V AC power independently, the power accumulator that is aided with motor vehicle self, electric power networks is powered, alleviate the impact that peak of power consumption produces the electric power networks system in the time of working by day, realize the notion of vehicle-intelligent grid (Vehicle to Grid).This fuel cell distance increasing unit system can also supply with the alternating current of 220V as emergency power supply to the outside to the area of not having mains supply in vehicle ', is power supplies such as some instrument and equipments and emergency service.

Fuel cell is touched as power source by proton exchange by system of the present utility model, has the energy conversion efficiency height, no electrolyte leakage, as long as open electrochemical structure have enough hydrogen just supply with can continual continued power etc. plurality of advantages, be considered to one of ideal power source of electric automobile.Its efficient that has overcome traditional combustion engine is subjected to the restriction of Carnot cycle, and exist seriously polluted, fossil energy shortcoming such as peter out, also remedied simultaneously present electric vehicle electrokinetic cell, lithium rechargeable battery for example, the charging interval of Ni-MH battery and lead-acid battery etc. is long, has waste treatment hidden danger and many shortcomings such as the continual mileage number that provides is less, so this system is a novel system that has very much development prospect.

The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art should be within protection range of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.

Claims

1. fuel cell distance increasing unit system, it is characterized in that: it comprises fuel cell module, DC/DC module and master controller module, be connected by lead between fuel cell module and the DC/DC module, both are equipped with controller, by this controller and master controller module communication.

2. fuel cell distance increasing unit as claimed in claim 1 system, it is characterized in that: it also comprises the DC/AC module, and it is connected by lead respectively with the DC/DC module with fuel cell module, and it also has the controller with the master controller module communication.

3. fuel cell distance increasing unit as claimed in claim 1 system is characterized in that: described fuel cell module comprises hydrogen storage and conveying system, fuel cell pile, and its chemical energy with hydrogen and oxygen is converted into electric energy and imports as the energy.

4. fuel cell distance increasing unit as claimed in claim 1 system, it is characterized in that: the input voltage range of described DC/DC module comprises the scope of fuel cell output voltage fluctuation, and rated power is greater than the power output that equals fuel cell, and its output voltage is determined by the voltage of the power bus in the electric motor car.

5. fuel cell distance increasing unit as claimed in claim 1 system is characterized in that: described master controller module is obtained the power output of system, peak power output, failure diagnosis and each module data uploading to entire car controller of the current system of notice entire car controller by the CAN bus from the outside.

6. fuel cell distance increasing unit as claimed in claim 2 system is characterized in that: described DC/AC module is converted into the direct current energy of fuel cell output the alternating current of 220V.