CN2911975Y - Fuel cell metering device of capacity type fuel cell - Google Patents
Fuel cell metering device of capacity type fuel cell Download PDFInfo
- Publication number
- CN2911975Y CN2911975Y CNU2006200017963U CN200620001796U CN2911975Y CN 2911975 Y CN2911975 Y CN 2911975Y CN U2006200017963 U CNU2006200017963 U CN U2006200017963U CN 200620001796 U CN200620001796 U CN 200620001796U CN 2911975 Y CN2911975 Y CN 2911975Y
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- fuel
- plate
- metallic conduction
- capacitance
- bath
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a fuel measuring device for the capacitance fuel cell, which is characterized in that: two pole plates are arranged in a fuel cell jar, and the quantity of the fuel dose can be estimated together with a additional springy component, and then the quantity of the fuel in cell jar can be estimated. The device comprises two parts, one is arranged in the cell jar, and the other is control unit outside the cell. The first part is composed of two pole plates and a springy component, the structure can not only sustain the liquid surface on a level, but also transmit data to the outside control unit through the distance between the two pole plates; and then the data can be processed by control unit, and the remaining quantity of fuel in the cell can be counted.
Description
Technical field
A kind of condenser type fuel-cell fuel of this novel proposition metering device, it is characterized in that main two battery lead plates and the elastic parts that places in the fuel cell groove that utilize, by two-plate with between the medium of two-plate, form a capacitive device, be gathered in the electric weight of this two battery lead plate and the dielectric coefficient of this medium via this, see through the control unit estimation, can learn fuel situation in the fuel cell groove.
Background technology
In the known technology, for the fuel number of fuel bath in the fuel cell, how with fuel face height, judge the residual quantity of fuel in the fuel bath via upper liquid level and the next liquid level, yet the liquid level in this fuel bath is not simple level height, and because of different occupation modes, and make in the fuel bath, liquid level is non-to be fixed form, and the form that thereupon changes causes the residual amount estimation of fuel bath internal combustion amount, to some extent error, this error has negative influence for fuel cell.
The shortcoming of above-mentioned known technology art so this is novel, principle with electric capacity, effectively utilized and improved, can make fixedly kenel of the interior liquid-retentive one of fuel bath, this kenel can be effective to estimate residual fuel, compares with known technology before, has more the advantage of this residual fuel of accurate estimation, so this novel not only production cost is low, also can be the device of accurate estimation.
Summary of the invention
This is novel to be to be a kind of condenser type fuel-cell fuel metering device, and this capacitive idea is to be the deriving of electric capacity notion, and electric capacity is the conductive plate for two parallel placements, and it is connected to a DC source at interval with megohmite insulant (as air) via a switch.All keep the neutral uncharged state that is before two-plate (being called pole plate A and pole plate B) the access failure power supply.Behind switch closure (conducting situation), the electronics of pole plate A is attracted the positive pole to battery, thereby A presents positively charged phenomenon; The electronics of battery negative terminal then is ostracised to pole plate B simultaneously, makes B present electronegative phenomenon; Therefore, between A, B two-plate, form electric field and set up a potential difference V.The phenomenon that this electronics flows continues to carry out, and the electric weight that is shifted is directly proportional with power source voltage, when the potential difference until between the AB two-plate equates with supply voltage (V=E), just stops movement of electrons.In the electronics process of flowing, the energy of power supply taken out of and unloading on two-plate, that is to say to have stored electric charge.Two parallel electrically conductive pole plates are called capacitor (capacitor or condenser) every the equipment that has the store charge ability with megohmite insulant.Conductive plate is called the electrode (electrode) of capacitor, and megohmite insulant is called dielectric (dielectric) or is called for short medium.Capacitance (capacitance) is to be used for representing that capacitor can save the ability of electric charge (or capacity).Various capacitors, because of the big or small shape body material of conductor and distance between plates from different capacitance being arranged with the different of factor such as medium kinds, but the quantity of electric charge Q that can store is directly proportional with its current potential V, promptly
C＝Q/V
Proportionality constant C in the following formula is the capacitance of capacitor, is called for short electric capacity.
That is, two parallel metal sheet capacitors are simple and the most practical capacitors, fill out with medium between two plates, between two plates every d very less than the area A of plate, capacitance size is directly proportional with the area of metallic plate and the dielectric coefficient ε of medium, and and the distance between two plates be inversely proportional to, promptly
C＝(εA)/d
Wherein, the dielectric coefficient of vacuum or air is ε=8.84*10e-12 (F/m).
In the formula by this electric capacity, can learn, can utilize capacitance meter to measure capacitance, and this dielectric coefficient also can determine with solution in the fuel bath; The fuel bath area is a known parameters again, and each can be via control unit, the conversion liquid level, and and via in this liquid level and the experimental data, corresponding fuel concentration can be learnt fuel quantity residual in the present fuel bath, by this information, can accurately estimate this fuel.
Description of drawings
Fig. 1 is the three-dimensional view that shows this novel capacitance-type fuel-cell fuel metering device one specific embodiment;
Fig. 2 is the three-dimensional view that shows second kind of specific embodiment of this novel capacitance-type fuel-cell fuel metering device;
Fig. 3 is the front view that shows the third specific embodiment of this novel capacitance-type fuel-cell fuel metering device.
Symbol description
1 fuel supply system, 11 fuel baths
12 elastic partss, 13 capacitance components
The 13a first metallic conduction parallel-plate 13b second metallic conduction parallel-plate
15 fuel, 16 liquid levels
2 control units, 3 fuel cells
D distance A effective cross-section
ε equivalence dielectric coefficient C capacitance
Embodiment
Show that with reference to figure 1 it is the three-dimensional view of this novel capacitance-type fuel-cell fuel metering device one specific embodiment.This is novel to be about a kind of condenser type fuel-cell fuel metering device, and it mainly is that a fuel supply system (1) and a control unit (2) constitute, in order to the required fuel of fueling battery (3) and have the measurement means of fuel stock.
Above-mentioned fuel supply system (1) is to have a fuel bath (11), this fuel bath (11) is one to have the hollow structure of accommodation space, in order to the required fuel (15) of storage of fuels battery (3), and the first metallic conduction parallel-plate (13a) and the second metallic conduction parallel-plate (13b) are set in this fuel bath (11).Wherein, this first metallic conduction parallel-plate (13a) is corresponding setting mutually with the second metallic conduction parallel-plate (13b), and preferable aspect is that this first metallic conduction parallel-plate (13a) is parallel with this second metallic conduction parallel-plate (13b) and be arranged at the surface of this fuel bath (11) accommodation space respectively, and constitute a capacitance component (13), and make the material in this fuel bath (11) accommodation space become the dielectric materials layer of this capacitance component (13).Therefore, see through the change of the capacitance of this capacitance component (13), can know fuel (15) storage in this fuel bath (11).
Moreover, above-mentioned control unit (2) is to be electrically connected this capacitance component (13) and to have capacitance convert fuel storage means person, wherein the better embodiment of this control unit (2) is reached by microprocessor or circuitry means, and the capacitance convert fuel storage means of this control unit (2) are the capacitances according to the feedback of this capacitance component (13) institute, obtain fuel (15) storage in this fuel bath (11).The corresponding relation of the fuel stock of the capacitance of this capacitance component (13) and this fuel bath (11) can be the result via the experimental record statistics, and this corresponding relation is stored in control unit (2) and can reaches its capacitance convert fuel storage means.
In addition, the corresponding relation of the fuel stock of the capacitance of this capacitance component (13) and this fuel bath (11) also can be a functional relation, shown with reference to figure 1, this functional relation mainly is the physical characteristic that builds on capacitor, first kind of preferred embodiment with this case, define between this first metallic conduction parallel-plate (13a) and the second metallic conduction parallel-plate (13b) is A apart from d and effective cross-section, equivalent dielectric coefficient in this fuel bath (11) accommodation space is ε, and the capacitance of this capacitance component (13) institute feedback is C, the desirable physical properties of this capacitor is C=(ε A)/d, wherein parallel-plate is the parameter that designs apart from d and effective cross-section A, and capacitance C can see through this control unit (2) measurement acquisition, therefore corresponding equivalent dielectric ε be can calculate out, the storage of corresponding fuel (15) or the liquid level (16) of fuel (15) calculated out by equivalent dielectric ε more at last.
Fig. 2 is the three-dimensional view that shows second kind of specific embodiment of this novel capacitance-type fuel-cell fuel metering device.In the capacitance component of the foregoing description (13), mainly be to make this fuel bath (11) accommodation space be between this first metallic conduction parallel-plate (13a) and the second metallic conduction parallel-plate (13b).Therefore, the first metallic conduction parallel-plate (13a) of this capacitance component (13) can be the liquid level of parallel fuel (15) as shown in Fig. 1 with being provided with of the second metallic conduction parallel-plate (13b), or is the liquid level of vertical fuel (15) as shown in Fig. 2.
Shown with reference to figure 3, it is the front view of the third specific embodiment of this novel capacitance-type fuel-cell fuel metering device.The first metallic conduction parallel-plate (13a) of above-mentioned capacitance component (13) is to slide to be arranged in the accommodation space of this fuel bath (11), and between this first metallic conduction parallel-plate (13a) and this fuel bath (11) the accommodation space surface elastic parts (12) is set, and fuel (15) liquid level of this fuel bath of contact (11) is kept on this another surface of first metallic conduction parallel-plate (13a).Therefore, this first metallic conduction parallel-plate (13a) is subjected to the pressing of elastic acting force of this elastic parts (12), make this first metallic conduction parallel-plate (13a) force to keep fuel (15) the liquid level direction of this fuel bath (11), so that should equivalence dielectric coefficient ε be directly relevant with the liquid level of the dielectric coefficient of fuel and fuel, and liquid level be equivalent between the first metallic conduction parallel-plate (13a) and the second metallic conduction parallel-plate (13b) apart from d (liquid level and be constant apart from the difference between the d).So can see through stored data corresponding relation of the capacitance convert fuel storage means of this control unit (2) or algorithm must be apart from d or corresponding fuel (15) storage.
In addition, the elastic acting force of above-mentioned elastic parts (12) mainly is the direction that presses this level of fuel along this first metallic conduction parallel-plate (13a), as long as and make this elastic acting force act on this first metallic conduction parallel-plate (13a), therefore, this elastic parts (12) not necessarily is arranged between this first metallic conduction parallel-plate (13a) and this fuel bath (11) the accommodation space surface.
In above-mentioned the novel capacitance-type fuel-cell fuel metering device, this control unit (2) can be to be arranged in fuel supply system (1) or the fuel cell (3).
Though this is novel with specific embodiment openly as above; right its disclosed specific embodiment is not novel in order to limit this; anyly be familiar with this operator; in not breaking away from these novel spirit and scope; when being used for a variety of modifications and variations; its change of doing all belongs to this novel category with retouching, and this novel protection range should be with being as the criterion that originally novel claim was defined.
Claims (10)
1. a condenser type fuel-cell fuel metering device is characterized in that, comprising:
One fuel supply system comprises:
One fuel bath, it is one to have the hollow structure of accommodation space; And
One capacitance component, it is to comprise one first metallic conduction parallel-plate and one second metallic conduction parallel-plate, and this first metallic conduction parallel-plate is mutual corresponding being arranged in this fuel bath accommodation space with the second metallic conduction parallel-plate, and is the dielectric materials layer of this capacitance component with the material in this fuel bath accommodation space; And
One control unit, it is to be electrically connected this capacitance component and to have capacitance convert fuel storage means.
2. device as claimed in claim 1 is characterized in that, these capacitance convert fuel storage means are the correspondence relationship information that comprise the fuel stock of the capacitance of capacitance component and this fuel bath.
3. device as claimed in claim 1 is characterized in that, these capacitance convert fuel storage means are the functional relation information that comprises the fuel stock of the capacitance of this capacitance component and this fuel bath.
4. device as claimed in claim 1 is characterized in that, the first metallic conduction parallel-plate of this capacitance component is the liquid level of parallel fuel with the second metallic conduction parallel-plate.
5. device as claimed in claim 1 is characterized in that, the first metallic conduction parallel-plate of this capacitance component is the liquid level of vertical fuel with the second metallic conduction parallel-plate.
6. device as claimed in claim 1 is characterized in that, the first metallic conduction parallel-plate of this capacitance component is to slide to be arranged in the accommodation space of this fuel bath, and the level of fuel of this fuel bath of contact is kept on a surface of this first metallic conduction parallel-plate.
7. as claim 6 device, it is characterized in that this fuel bath accommodation space comprises an elastic parts, the elastic acting force of this elastic parts is the direction that presses this level of fuel along this first metallic conduction parallel-plate.
8. device as claimed in claim 7 is characterized in that, this elastic parts is to be arranged between this first metallic conduction parallel-plate and this fuel bath accommodation space surface.
9. device as claimed in claim 1 is characterized in that, this control unit is arbitrary kenel of selecting in a processor and the circuitry means.
10. device as claimed in claim 1 is characterized in that this control unit is to be arranged in the fuel supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200017963U CN2911975Y (en) | 2006-02-16 | 2006-02-16 | Fuel cell metering device of capacity type fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200017963U CN2911975Y (en) | 2006-02-16 | 2006-02-16 | Fuel cell metering device of capacity type fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911975Y true CN2911975Y (en) | 2007-06-13 |
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ID=38133837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200017963U Expired - Fee Related CN2911975Y (en) | 2006-02-16 | 2006-02-16 | Fuel cell metering device of capacity type fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911975Y (en) |
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2006
- 2006-02-16 CN CNU2006200017963U patent/CN2911975Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20110216 |