CN101290285A - Penetration type concentration device for reducing environment temperature effect - Google Patents
Penetration type concentration device for reducing environment temperature effect Download PDFInfo
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- CN101290285A CN101290285A CNA200710097906XA CN200710097906A CN101290285A CN 101290285 A CN101290285 A CN 101290285A CN A200710097906X A CNA200710097906X A CN A200710097906XA CN 200710097906 A CN200710097906 A CN 200710097906A CN 101290285 A CN101290285 A CN 101290285A
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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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Abstract
The invention relates to a penetrable concentration device for reducing the ambient temperature effect. The invention is mainly to arrange a concentration detector inside a fluid communicated space of a fluid circulation device in a fuel battery system, to reach equal fluid temperature in the concentration detector and the fuel battery and then to reduce the errors caused by affection of the ambient temperature.
Description
Technical field
The present invention relates to a kind of penetration type concentration device that reduces environment temperature effect, it particularly provides one to see through the change of optical property and obtain fluid concentrations.
Background technology
Known liquid measuring device is to use in the metering of the physical features of fluid, and such as concentration of fluid, density or Fluid Volume, general liquid measuring device normally volume is big and assembly is complicated, also causes its cost than higher because of such result simultaneously.Yet the product that volume is little and cost is low also becomes more and more important under the market demand.With the fuel cell system is example, the trend that at present fuel cell system is used in portable electron device is remarkable gradually, and known fuel cell is to have to utilize hydrogen-rich stream body (as methyl alcohol) and oxygen flow body to carry out electrochemical reaction and the battery core of output power, therefore in operating process, need to allow the user know, when fuel fluid concentration deficiency or storage are not enough and must the postcombustion fluid, so fuel fluid liquid level and fuel fluid capacity in also must detecting fuel fluid container.And detecting fuel fluid concentration and fuel fluid storage are provided in the general fuel fluid container is to see through expensive gage probe, use in a large number in the portable electronics product for present needs, and be quite uneconomic.
In addition, because in the electrochemical reaction of fuel cell system, the fuel fluid temperature that changes along with the carrying out of electrochemical reaction can cause the generation error as a result that measures, therefore must corresponding fluid temperature (F.T.) and compensate, measure to obtain correct fluid physics feature.
Therefore, the present inventor is because the shortcoming of known liquid measuring device is urgently to think to invent a kind of fluid concentrations detector that meets present pursuit.
Summary of the invention
The invention relates to a kind of penetration type concentration device that reduces environment temperature effect, its fundamental purpose be can this concentration detecting device and this fuel cell in fluid temperature (F.T.) reach state of equalization, cause the generation of error with the relation of avoiding the temperature difference.
Be familiar with this technician and understand purpose of the present invention, feature and effect for making,, and cooperate appended accompanying drawing now by following specific embodiment, in detail explanation as after.
Description of drawings
Fig. 1 is a primary clustering associated diagram of the present invention;
Fig. 2 is the partial component side view of first specific embodiment of the present invention;
Fig. 3 is the graph of a relation of concentration-current value of the present invention-temperature;
Fig. 4 is the partial component side view of second specific embodiment of the present invention;
Fig. 5 is the partial component side view of the 3rd specific embodiment of the present invention; And
Fig. 6 is the partial component side view of the 4th specific embodiment of the present invention.
Symbol description
Fuel cell system (1) fuel cell power generating unit (11)
Fluid circulating device (12) fluid connected space (12a)
Fluid (12b) concentration detecting device (2)
Photoinduction device (21) optical sensor (21a)
Light supply apparatus (22) light beam (22a)
Reflection subassembly (23) arithmetic unit (3)
Temperature sensing unit (4)
Embodiment
It is shown to see also Fig. 1, and it is a primary clustering associated diagram of the present invention.The present invention mainly is to use the concentration detecting device (2) in a fuel cell system (1), this concentration detecting device (2) is the inside that correspondence is arranged at middle storage of this fuel cell system (1) or conveyance fluid, and see through this concentration detecting device (2) and detect fluid in this fuel cell system (1), and export a pair of electric information to an arithmetic unit (3) that should fluid concentrations, judge the pairing fluid concentrations of this electric information by this arithmetic unit (3) again.
In aforementioned this fuel cell system (1), include a fuel cell power generating unit (11) and a fluid circulating device (12).Wherein this fuel cell power generating unit (11) is to have catalytic substance and can be by carrying out electrochemical reaction with hydrogen-rich stream body and oxygen flow body, and and then chemical energy is converted to a kind of energy converter that electric energy is exported; And this fluid circulating device (12) is in order to storage and transmits this fuel cell system (1) electrochemical reaction required fluid and reacted residual solution.
In aforementioned this concentration detecting device (2), comprise a Photoinduction device (21) and a light supply apparatus (22), wherein this Photoinduction device (21) is can be in order to light signal is converted to electric information, make that this optical sensor is to be subjected under the state of light source irradiation, can export current value or other electric information of a correspondence respectively according to the light dosage of being accepted; And this light supply apparatus (22) is in order to light source to be provided, and this light source can be infrared ray, visible light or single-frequency light.
Aforementioned this arithmetic unit (3) is to have the logical operation means, in order to handling the electric information that this concentration detecting device (2) is exported, and the pairing fluid concentrations of this electric information that performs calculations.Wherein this arithmetic unit (3) can be reached by circuitry means, and the current value that can be used for capturing the corresponding illumination state of each optical sensor and export respectively, and the electric information of this current value information of output carrying, and the interface of this arithmetic unit (3) output information can be to adopt SMBus transmission interface or I2C transmission interface.
Shown with reference to figure 1 and Fig. 2, Fig. 2 is the partial component side view of first specific embodiment of the present invention.In aforementioned this fuel cell system (1), this fluid circulating device (12) is to comprise a fluid connected space (12a), makes that the fluid (12b) in this fluid circulating device (12) can transmit or stores by this fluid connected space (12a).The stored fluid (12b) of this fluid circulating device (12) is that pure water and other potpourri mix, thereby the concentration of this fluid (12b) is that the shared component ratio of pure water determines in this fluid (12b).Moreover, aforementioned this Photoinduction device (21) is to have an optical sensor (21a) at least, this optical sensor (21a) can be a photosensitive components, and can be in order to light signal is converted to electric information, make that this optical sensor is to be subjected under the state of light source irradiation, can export current value or other electric information of a correspondence respectively according to the light dosage of being accepted; And this Photoinduction device (21) is the corresponding inner both sides of fluid connected space (12a) that are arranged at this fluid circulating device (12) with this light supply apparatus (22), make that the emitted light beam (22a) of this light supply apparatus (22) can be via this fluid circulating device (12), and arrive at the optical sensor (21a) of this Photoinduction device (21).
Reduce the penetration type concentration device of environment temperature effect based on aforementioned the present invention, light supply apparatus (22) in this concentration detecting device (2) produces a light beam (22a) and penetrates this fluid (12b) in the fluid connected space (12a) of this fluid circulating device (12), and the portion of energy of this light beam (22a) can be absorbed by the fluid (12b) in this fluid connected space (12a).Then, remaining light beam (22a) energy can be incident to the optical sensor (21a) of this Photoinduction device (21), makes the corresponding light signal strength of being accepted of optical sensor (21a) of this Photoinduction device (21) be converted to the electric information of a correspondence.This arithmetic unit (3) performs calculations according to this electric information at last, thereby obtains the concentration of the fluid (12b) of this fluid connected space (12a).
The fluid connected space (12a) of described this fluid circulating device (12) is a light-permeable to another part that local and this optical sensor (21a) of should light supply apparatus (22) launching this light beam (22a) receives this light beam (22a), and other parts are light-permeables not, therefore can avoid the interference of the light signal that extraneous light received this optical sensor (21a).In addition, fluid connected space (12a) part of this fluid circulating device (12) is meant the space of middle transmission of this fluid circulating device (12) or store fluid (12b), in fact, this fluid connected space (12a) is to comprise the runner of transmitting fluid (12b) or the fluid slot of store fluid (12b).
Moreover described this concentration detecting device (2) is to place in the fluid connected space (12a) of this fluid circulating device (12), the whole temperature of this concentration monitoring device (2) is influenced by this fluid (12b), the influence that so can avoid encircling temperature causes unnecessary error to occur, described fuel cell system (1) further comprises a temperature sensing unit (4), this temperature sensing unit (4) is fluid connected space (12a) part that correspondence is arranged at this fluid circulating device (12), make this temperature sensing unit (4) can measure fluid (12b) temperature of this fluid connected space (12a), further with reference to the graph of a relation of the shown concentration-current value-temperature of figure 3.Because when this optical sensor (21a) receives the light signal of this light supply apparatus (22), can export the current information of a correspondence according to the received intensity of light source, the light beam (22a) that this light supply apparatus (22) is provided then can partly be absorbed by the fluid of process (12b) or also can be the characteristic that this light beam (22a) penetrates this fluid (12b).Wherein, influence concentration and the temperature that factor that this fluid (12b) absorbs the portion of energy of this light beam (22a) or influence the light peneration of this light beam (22a) comprises this fluid (12b).So, must utilize this concentration detecting device (2) under specified temp and under the corresponding specific fluid concentrations earlier, set up the corresponding relation of this concentration-current value-temperature, the temperature compensation foundation when measuring as concentration.The mode that described concentration of fluid-current value-temperature relation can see through the data corresponding tables writes down or is based upon in this arithmetic unit (3) with functional relation, in order to seeing through the light peneration and the temperature of this concentration detecting device (2) and this temperature sensing unit (4) this fluid of feedback (12b) as this arithmetic unit (3), and judge the concentration of this fluid (12b).In addition, in the embodiment that uses the data corresponding tables, this arithmetic unit (3) can be according to the relation of existing concentration-current value-temperature, sees through extrapolation or interpolation method and obtains the relation data of other concentration-current value-temperature.
It is shown to please refer to Fig. 4, and it is the partial component side view of second specific embodiment of the present invention.Be that with last embodiment difference the function of this temperature sensing unit (4) is replaced by this light supply apparatus (22) enforcement.Described light supply apparatus (22) is to can be the semiconductor luminescence component, and at the direct current power of input specific voltage during to this light supply apparatus (22), the illumination of the light beam (22a) that this light supply apparatus (22) produces or intensity are to input dc power power that should specific voltage, but this light supply apparatus (22) is understood corresponding different environment temperature and is produced different pressure drops, therefore, the characteristic of this light supply apparatus (22) can be utilized and the temperature of sensitive context, and the temperature sensing unit (4) of described embodiment can be replaced.With a specific embodiment, wherein, the direct current power that certain voltage can be provided is to this light supply apparatus (22), and measures the pressure drop of electric power after through this light supply apparatus (22) under different temperatures, with the pressure drop of setting up this light supply apparatus (22) and the relation of temperature.Therefore, in described embodiment, in concentration device of the present invention, can be according to the pressure drop and the temperature relation of this light supply apparatus (22), see through the pressure drop that measures this light supply apparatus (22) and the illumination that obtains temperature information and this light supply apparatus (22) of this light supply apparatus (22) environment of living in, and can be in order to compensate the electric signal of this Photoinduction device (21) institute feedback, make the electric signal of this Photoinduction device (21) institute feedback remove the influence of environment temperature, and can be under the known situation of the illumination of this light supply apparatus (22), obtain and the concentration facies relationship electric signal of this fluid (12b).
It is shown to please refer to Fig. 5 again, it is the partial component side view of the 3rd specific embodiment of the present invention, in this fuel cell system (1), this fluid circulating device (12) is to comprise a fluid connected space (12a), makes that the fluid (12b) in this fluid circulating device (12) can transmit or stores by this fluid connected space (12a).The stored fluid (12b) of this fluid circulating device (12) is that pure water and other potpourri mix, thereby the concentration of this fluid (12b) is that the shared component ratio of pure water determines in this fluid (12b).Moreover, described this Photoinduction device (21) is to have an optical sensor (21a) at least, this optical sensor (21a) can be a photosensitive components, and can be in order to light signal is converted to electric information, make that this optical sensor is to be subjected under the state of light source irradiation, can export current value or other electric information of a correspondence respectively according to the light dosage of being accepted; And this Photoinduction device (21) is corresponding fluid connected space (12a) inside that is arranged at this fluid circulating device (12) with this light supply apparatus (22), and when this light supply apparatus (22) throws this light beam (22a), its light beam (22a) is to be incident upon earlier in a reflection subassembly (23), utilizing this reflection subassembly (23) that this light beam (22a) is turned to again refracts on this Photoinduction device (21), make that the emitted light beam (22a) of this light supply apparatus (22) can be via this fluid circulating device (12), and arrive at the optical sensor (21a) of this Photoinduction device (21).
Reduce the penetration type concentration device of environment temperature effect based on described the present invention, light supply apparatus (22) in this concentration detecting device (2) produces a light beam (22a) and penetrates this fluid (12b) in the fluid connected space (12a) of this fluid circulating device (12), and the portion of energy of this light beam (22a) can be absorbed by the fluid (12b) in this fluid connected space (12a).Then, remaining light beam (22a) energy can turn to refraction by this reflection subassembly (23), and then be incident in the optical sensor (21a) of this Photoinduction device (21), make the corresponding light signal strength of being accepted of optical sensor (21a) of this Photoinduction device (21) be converted to the electric information of a correspondence.This arithmetic unit (3) performs calculations according to this electric information at last, thereby obtains the concentration of the fluid (12b) of this fluid connected space (12a).
The fluid connected space (12a) of described this fluid circulating device (12) is a light-permeable to another part that local and this optical sensor (21a) of should light supply apparatus (22) launching this light beam (22a) receives this light beam (22a), and other parts are light-permeables not, should this can avoid the interference of the light signal that extraneous light received this optical sensor (21a).In addition, fluid connected space (12a) part of this fluid circulating device (12) is meant the space of middle transmission of this fluid circulating device (12) or store fluid (12b), in fact, this fluid connected space (12a) is to comprise the runner of transmitting fluid (12b) or the fluid slot of store fluid (12b).
Moreover described this concentration detecting device (2) is to place in the fluid connected space (12a) of this fluid circulating device (12), the whole temperature of this concentration monitoring device (2) is influenced by this fluid (12b), the influence that so can avoid encircling temperature causes unnecessary error to occur, described fuel cell system (1) further comprises a temperature sensing unit (4), this temperature sensing unit (4) is fluid connected space (12a) part that correspondence is arranged at this fluid circulating device (12), make this temperature sensing unit (4) can measure fluid (12b) temperature of this fluid connected space (12a), further with reference to the graph of a relation of the shown concentration-current value-temperature of figure 3, it is that this concentration detecting device (2) is under specified temp and the relation curve of corresponding specific concentration-current value that fluid concentrations obtained-temperature.Described concentration of fluid-current value-temperature relation can be through the mode of data corresponding tables or with functional relation, be based upon in this arithmetic unit (3), in order to seeing through the light peneration and the temperature of this concentration detecting device (2) and this temperature sensing unit (4) this fluid of feedback (12b) as this arithmetic unit (3), and judge the concentration of this fluid (12b).In addition, in the embodiment that uses the data corresponding tables, this arithmetic unit (3) can be according to the relation of existing concentration-current value-temperature, sees through extrapolation or interpolation method and obtains the relation data of other concentration-current value-temperature.
It is shown to please refer to Fig. 6 again, and it is the partial component side view of the 4th specific embodiment of the present invention, is that with preceding the 3rd embodiment difference the function of this temperature sensing unit (4) is replaced by this light supply apparatus (22) enforcement, because of.Described light supply apparatus (22) is to can be the semiconductor luminescence component, and at the direct current power of input specific voltage during to this light supply apparatus (22), the illumination of the light beam (22a) that this light supply apparatus (22) produces is to input dc power power that should specific voltage, but this light supply apparatus (22) is understood corresponding different environment temperature and is produced different pressure drops, therefore, the characteristic of this light supply apparatus (22) can be utilized and the temperature of sensitive context, and the temperature sensing unit (4) of described embodiment can be replaced.With a specific embodiment, wherein, the direct current power that certain voltage can be provided is to this light supply apparatus (22), and measures the pressure drop of electric power after through this light supply apparatus (22) under different temperatures, with the pressure drop of setting up this light supply apparatus (22) and the relation of temperature.Therefore, in described embodiment, in concentration device of the present invention, can be according to the pressure drop and the temperature relation of this light supply apparatus (22), see through the pressure drop that measures this light supply apparatus (22) and the illumination that obtains temperature information and this light supply apparatus (22) of this light supply apparatus (22) environment of living in, and can be in order to compensate the electric signal of this Photoinduction device (21) institute feedback, make the electric signal of this Photoinduction device (21) institute feedback remove the influence of environment temperature, and can be under the known situation of the illumination of this light supply apparatus (22), obtain and the concentration facies relationship electric signal of this fluid (12b).
Below the present invention is elaborated, but the above content only is a preferred embodiment of the present invention, when not limiting scope of the invention process.Be that all equalizations of doing according to claim of the present invention change and modify etc., all should belong in protection scope of the present invention.
Claims (16)
1. penetration type concentration device that reduces environment temperature effect, it mainly is the fluid concentrations sensing that applies to a fluid circulating device, it includes:
One light supply apparatus, it comprises the luminescence component of exporting a light signal;
One Photoinduction device, it comprises an optical sensor at least, and this optical sensor is to receive the light signal of this light supply apparatus and export a pair of electric information that should light signal strength;
One temperature sensing unit, its setting are to should fluid circulating device, and the fluid temperature (F.T.) in this fluid circulating device of sensing; And
One arithmetic unit;
Wherein the optical sensor of this Photoinduction device is the corresponding both sides that are arranged at the local space of this fluid circulating device with this light supply apparatus, the light signal that this light supply apparatus is exported is via the fluid in this fluid circulating device and is projected to the optical sensor of this Photoinduction device, the optical sensor output of this Photoinduction device a pair of should light signal and the electric information of this fluid concentrations to this arithmetic unit; And this arithmetic element comprises the relation differentiation means of one concentration-current value-temperature, the differentiation means that concern of this concentration-current value-temperature are the electric informations that the electric information exported according to the optical sensor of this Photoinduction device and this temperature sensing unit are exported, and calculate out the fluid concentrations in this fluid circulating device fluid connected space.
2. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, wherein this optical sensor is exported a current value, and this current value is to light beam that should the light supply apparatus light peneration through the fluid of this fluid circulating device local space.
3. the penetration type concentration device of reduction environment temperature effect as claimed in claim 2, wherein this concentration of fluid-current value-temperature relation is selected to be based upon in this arithmetic element with the mode and the arbitrary kenel in the functional relation of data corresponding tables, in order to seeing through the light peneration and the temperature of this concentration detecting device and this this fluid of temperature sensing unit feedback as this arithmetic element, and judge this concentration of fluid.
4. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, wherein in this fluid circulating device, to should light supply apparatus another part local and this optical sensor receiving beam of emission light beam be printing opacity, and these fluid circulating device other parts are light-permeables not.
5. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, wherein the light source of this light supply apparatus output is arbitrary light source of selecting in infrared ray, visible light and single-frequency light.
6. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, wherein this optical sensor is a photosensitive components.
7. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, wherein this concentration device has a reflection subassembly, light supply apparatus can be projeced into beam steering on this reflection subassembly to this Photoinduction device.
8. the penetration type concentration device of reduction environment temperature effect as claimed in claim 1, this fluid connected space are to comprise the runner of transmitting fluid or the fluid slot of store fluid.
9. penetration type concentration device that reduces environment temperature effect, it mainly is the fluid concentrations sensing that applies to a fluid circulating device, it includes:
One light supply apparatus, it is the semiconductor luminescence component, and this light supply apparatus is that output one light signal and this light supply apparatus operate in the electric information of deciding the pressure drop under the voltage, the electric information of this pressure drop is to temperature that should the light supply apparatus present position;
One Photoinduction device, it is to comprise an optical sensor at least, and this optical sensor is to receive the light signal of this light supply apparatus and export a pair of electric information that should light signal strength; And
One arithmetic unit;
Wherein the optical sensor of this Photoinduction device is the corresponding both sides that are arranged at the local space of this fluid circulating device with this light supply apparatus, the light signal that this light supply apparatus is exported is via the fluid in this fluid circulating device and is projected to the optical sensor of this Photoinduction device, the direct current power that one specific voltage is provided is corresponding this voltage to the light signal strength of this light supply apparatus and the output of this light supply apparatus, the optical sensor output of this Photoinduction device a pair of should light signal and the electric information of this fluid concentrations to this arithmetic unit; And this arithmetic element comprises the relation differentiation means of one concentration-current value-temperature, the differentiation means that concern of this concentration-current value-temperature are the pressure drop electric informations that the electric information exported according to the optical sensor of this Photoinduction device and this light supply apparatus are exported, and calculate out the fluid concentrations in this fluid circulating device fluid connected space.
10. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, wherein this optical sensor is exported a current value, and this current value is to light beam that should the light supply apparatus light peneration through the fluid of this fluid circulating device local space.
11. the penetration type concentration device of reduction environment temperature effect as claimed in claim 10, wherein this concentration of fluid-current value-temperature relation is selected to be based upon in this arithmetic element with the mode and the arbitrary kenel in the functional relation of data corresponding tables, in order to seeing through the light peneration and the temperature of this concentration detecting device and this this fluid of temperature sensing unit feedback as this arithmetic element, and judge this concentration of fluid.
12. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, wherein in this fluid circulating device, to should light supply apparatus another part local and this optical sensor receiving beam of emission light beam be printing opacity, and these fluid circulating device other parts are light-permeables not.
13. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, wherein the light source of this light supply apparatus output is arbitrary light source of selecting in infrared ray, visible light and single-frequency light.
14. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, wherein this optical sensor is a photosensitive components.
15. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, wherein this concentration device has a reflection subassembly, light supply apparatus can be projeced into beam steering on this reflection subassembly to this Photoinduction device.
16. the penetration type concentration device of reduction environment temperature effect as claimed in claim 9, this fluid connected space are to comprise the runner of transmitting fluid or the fluid slot of store fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710097906XA CN101290285A (en) | 2007-04-18 | 2007-04-18 | Penetration type concentration device for reducing environment temperature effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710097906XA CN101290285A (en) | 2007-04-18 | 2007-04-18 | Penetration type concentration device for reducing environment temperature effect |
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| Publication Number | Publication Date |
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| CN101290285A true CN101290285A (en) | 2008-10-22 |
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| CNA200710097906XA Pending CN101290285A (en) | 2007-04-18 | 2007-04-18 | Penetration type concentration device for reducing environment temperature effect |
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| CN (1) | CN101290285A (en) |
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Open date: 20081022 |