TWM307199U - Fuel metering device for capacitive fuel battery - Google Patents

Fuel metering device for capacitive fuel battery Download PDF

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Publication number
TWM307199U
TWM307199U TW095209249U TW95209249U TWM307199U TW M307199 U TWM307199 U TW M307199U TW 095209249 U TW095209249 U TW 095209249U TW 95209249 U TW95209249 U TW 95209249U TW M307199 U TWM307199 U TW M307199U
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TW
Taiwan
Prior art keywords
fuel
parallel plate
metal conductive
fuel tank
conductive parallel
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TW095209249U
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English (en)
Inventor
Chun-Chin Tung
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Syspotek Corp
Antig Tech Co Ltd
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Application filed by Syspotek Corp, Antig Tech Co Ltd filed Critical Syspotek Corp
Priority to TW095209249U priority Critical patent/TWM307199U/zh
Priority to JP2006009001U priority patent/JP3128770U/ja
Priority to US11/566,232 priority patent/US7533567B2/en
Publication of TWM307199U publication Critical patent/TWM307199U/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201Reactant storage and supply, e.g. means for feeding, pipes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Sustainable Energy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Fuel Cell (AREA)

Description

Μ3Ό7199 八、新型說明: 【新型所屬之技術領域】
士本創作係提出一種電容式燃料電池燃料計量裝置,其 #寸徵在於主要湘置於燃料電池槽内的兩電極板及彈性元 件,藉由兩極板與介於兩極板的介質,形成一電容式的裝 置’經由該聚集於該兩電極板的電量與該介質的介電係 數,透過控制單元估算,可得知燃料電池槽内燃料情形。 【先前技術】 以姆技Γ,對於燃料電池内燃料槽之燃料多寡,多 :科面馬度’經由上位液面與下位液面來判斷燃料槽内 的绞留里’然而該燃料槽内之液面並 =不:使用方式,而使燃料槽内,液面非二 : 退之义化的形式,致使燃料槽内燃量的殘量估曾, 故本創:: 電池而言,有負面之影響。 故本創作有鑑於上述習知技藝之缺失, 明’以電容的原理’加以有效湘並改良 概2 液體維持一固定荆& 了使燃料槽内 料Γ 該型態能有效用於估算殘留之_ 枓,與之前習知技藝相比且 U之Μ 優點,故本創作不僅4 W隹异该殘留之燃料之 置。 J作不僅生產成本低,亦可為精確估算之裝 【新型内容】 本創作係為一種電 容式燃料電池燃料計 量裝置 該電 Μ3Ό7199 摘元j 容式之想法係為電容概念之衍生,電容係為兩平 導電極板,其間隔以絕緣物質(如空氣),經由一開關連 接至一直流源。兩極板(分別稱為極板A與極板B)未接通 電源前均保持中性為不帶電之狀態。當開關閉合後(導通 情形),極板A之電子被吸引向電池的正極,因而A呈現 帶正電荷的現象;同時電池負端的電子則被排斥向極板 B,使B呈現帶負電荷的現象;因此,在A、B兩極板之 間形成電場並建立一電位差V。這種電子流動的現象持續 進行,所轉移之電量與電源之%壓成正比,直至AB兩極 板間之電位差與電源電壓相等時(V = E ),才停止電子之 移動。電子流動的過程中,將電源的能量帶出而轉存於兩 極板之上,也就是說儲存了電荷。兩平行導電極板隔以絕 緣物質而具有儲存電荷能力的器材,稱為電容器 (capacitor或condenser )。導電極板稱為電容器之電極 (electrode ), 絕緣物質稱為電介質(dielectric )或簡 稱介質。電容量(capacitance )是用來表示電容器能儲蓄電 荷的能力(或容量)。各種電容器,因導體的大小體形狀 體材質及板間距離與介質種類等因素的不同而有不一樣的 電容量,但所能儲存的電荷量Q與其電位V係成正比,即
C=Q/V 上式中的比例常數C即為電容器之電容量,簡稱電容。 又即,兩平行金屬板電容器是最簡單而且實用的電容 M3 07199 擊日Μ 器,在兩板之間埴以介皙
A,電容大小與金屬板之面二板之間隔d甚小於W 比,而盥兩柘 貝及介質之介電係數e成正 而舁兩板間之距離成反比,即 C== (eA) /d 其中,真空或空氣之介電係數 拉士兮卡…λ人 电係數為e =8.84*l〇e_12 ( F/m )。 稭由该電谷的公式中,〇曰 信八+ 了侍知,可利用電容表來測量電容 值,且该m系數隨燃料槽内溶液 面積為-已知參數,各可經 ’又㈣槽 而并〆丄#、 、由心制早兀,換算液面高度, η〜 貝驗數據中,制之燃料濃度,可 侍知目刖燃料槽中殘留之燃料 算該燃料。 猎由该讯息,可精確估 【實施方式】 旦壯2弟—圖顯示,其係本創作電容式燃料電池燃料計 衣:i·體實施例之立體視圖。本創作係關於—種電容
式燃料電池辦料計詈癸晉,I /卄砵里衣置其主要係一燃料供給裝置⑴以 、,一控制單it(2)所構成,用以供給燃料電池⑶所需之燃料 亚具有燃料存量的計量手段。 前述之燃料供給裝置⑴係具有一燃料槽(11),該辦料 = (11)係-具有容置"之中空結構,用以儲存燃料電池 (3)所需之燃料(15),且該燃料槽(11)中設置第一金屬導電 :行板(13a)以及第二金屬導電平行板(13b)。其中,該第一 金屬導電平行板(13a)與第二金屬導電平行板㈣係相互對 應設置,且較佳的態樣係該,一金屬導電平行板Ο%)與該 Μ3Ό7199 第二金屬導電平杆故τ 年H以' { 容置空間之表面,而構成二設置於該破㈣ 槽(11)容置空間中的物質成:二2,亚使得該燃料 層。因此,透過該電容元70件(13)之介電材料 伟'料揭m、+ 合兀件(13)之電容值的改變,可獲知 Μ九、、枓才曰(11)中的燃料(15)存量。 、,目::二前述之控制單元(2)係電氣連接該電容元件(13) :;圭實:=:換燃料存量手段者,其中該控制單元(2)的 “ΐ:⑵1二係由微處理器或電路手段所達成,且該 i):=之電容值’獲得該燃料槽⑼中的燃料“ =“ 件㈣之電容值與該燃料槽(11)之燃料存量 :對=關係可以係經由實驗記錄統計的結果,且 係儲存於控制單元(2)而可達成其電容值轉換燃料存 段。 f外心奋70件(13)之電容值與該燃料槽(11)之鮮 料存量的對應關係也可以係一函數關係,參考第一圖所顯 不’該函數關係主要係建立於電容器的物理特性,以本案 的第-種較佳實_來說’定義該第—金屬導電平行板 (13a)與第二金屬導電平行板(13b)之間的距離d且有效截面 為A ’該燃料槽(11)容置空間中的等效介電係數^,以 及該電容元件(13)所回馈之電容值為c,該電容器的理想 物理特性係c= (eA)/d,其中平行板距離(1與有效截面 A係設計好的參數,而電容值c可透過該控制單元⑺量測 獲得’因此可演算出對應的等效介電e,最後再由等效介 Μ3Ό7199 月G曰
演算出對應的燃料⑽的存量或燃料⑼的液 第示本創作電容式燃料電池燃料計量裂置的 體貫施例之立體視圖。前述實施例之電容元件 平ϊΓ系使得該燃料槽(11)容置空間處於該第-全 此,该黾容元件(13)之第一金屬導 屬導電平行板(13b)的設置可以如第 =弟二金 | (切之液面,或者是如第二圖所二==平行燃料 面。 吓”、、貞不係垂直燃料(15)之液 計量示,其係本創作電容式燃料電池燃料 之第二入^ 實施例之前視圖。前述電容元件(13) 容置二:蜍電平行板(13a)係滑動設置於該燃料槽(11)之 ⑴、Γ 且該第一金屬導電平行板(13a)與該燃料槽 屬導電平行板η 件(ΐ2),且該第-金 )表面維持接觸該燃料槽⑼之燃料 元株:。,此,該第一金屬導電平行板㈣受到該彈性 )的彈性作用力的壓¥,使得該第—金屬導電平行 反㈤:)強制維持該燃料槽⑼之燃料⑽液面方向,以致 於^等效介電係數e係直接與燃料的介電係數和燃料的液 面而度有關’而液面高度又等效於第—金屬導電平行板 (ι坤與第二金屬導電平行板㈣之間的距離d(液面高度和 =d之間的差值是常數)。所以可透過該控制單元(2)之 %谷值轉換燃料存量手段所,存的資料對應闕係或是演算 M307199 法獲得距離d或是對應的燃料(is)存量。 另外,前述之彈性元件(12)的彈性作用力主 該第-金屬導電平行板㈣”該燃料液面的方向,:口 要使得此彈性仙力仙於該第―金屬導電平行板㈣即、 I,因此’该弹性兀件⑽不_定係設置於該第一金屬導 电平行板(13a)與該燃料槽(11)容置空間表面之間。
前述本創作電容式燃料電池辫 I 〇口 _ 〆 …行冲里叙置中,該控制 早兀(2)可以係設置於燃料供給裝 不夏⑴或疋燃料電池⑶中。 雖然本創作已以具體實施例揭 , . ]揭路如上,然其所揭露的 具體貫施例亚非用以限定本創作 丁、 j作任何熟悉此技藝者,在 不脫離本創作之精神和範圍内,卷々 桃 # ^ ^ 田可作各種之更動與潤 飾,其所作之更動與潤飾皆屬於 & ^粑圍=視相之中請專利範圍所界定者為準。 【圖式簡單說明】 第一圖係顯示本創作電容式嫩 挪每Μ丨 八燃枓電池燃料計量裝置〆異 體實施例之立體視圖; I衣罝 第二圖係顯示本創作電容式 -種呈沪…: 4電池燃料計量裝置的第 —種具體貝鉍例之立體視圖; 第二圖係顯示本創作電容式揪泰 種具體實施例之前視圖。池燃料計量裝置第多 【主要元件符號說明】 1燃料供給裝置 11燃料槽
M307199 12彈性元件 13電容元件 13a第一金屬導電平行板 13b第二金屬導電平行板 15燃料 16液面高度 2控制單元 3燃料電池 , d距離 A有效截面 e等效介電係數 C電容值
11

Claims (1)

  1. Μ3Ό7199 九、申請專利範圍 1. 一種電容式燃料電池燃料計量裝置,包括: 一燃料供給裝置,包括: - 一燃料槽,其係一具有容置空間之中空結構;以及 一電容元件,其係包括一第一金屬導電平行板以及一第 二金屬導電平行板,且該第一金屬導電平行板與第二金 屬導電平行板係相互對應設置於該燃料槽容置空間中, 並以該燃料槽容置空間中的物質為該電容元件之介電材 •料層; 以及 一控制單元,其係電氣連接該電容元件並具有電容值轉 換燃料存量手段。 2. 如申請專利範圍第1項裝置,其中該電容值轉換燃料存 量手段係包括電容元件之電容值與該燃料槽之燃料存量 的對應關係資訊。 φ 3.如申請專利範圍第1項裝置,其中該電容值轉換燃料存 量手段係包括該電容元件之電容值與該燃料槽之燃料存 量的函數關係資訊。 4. 如申請專利範圍第1項裝置,其中該電容元件之第一金 屬導電平行板與第二金屬導電平行板係平行燃料之液 面0 5. 如申請專利範圍第1項裝置,其中該電容元件之第一金 屬導電平行板與第二金屬導電平行板係垂直燃料之液 面。 .5 12 M307199 6.如申請專利範圍第i項裝置,其中該電容人 肩導電平行板係滑動設置於該燃料槽之容置一= 該第一金屬導電平行板之一表 =s ’ 料液面。 『择符接觸该燃料槽之燃 7. 如申請專利範圍第6項褒置’其中該燃料槽容 栝一彈性元件,該彈性元件 工0已 ^ ^ ^ J ^ f生作用力係沿著該笫一 金屬V琶平行板壓掣該燃料液面的方向。 8. 如申請專利範圍第7項裝置, β第一令屬道中其中该弹性兀件係設置於 ""平仃板與該燃料槽容置空間表面之門 9. 如申請專利範圍第1縣置,曰。 Α ί田口- ” ^ 甲邊控制早几係選擇— 處理态以及一電路手段中的任一型能。 10.如申請專利範圍第!項裳 ; 燃料供給裝置中。 Ί亥控制早几係設置於 13
TW095209249U 2006-05-29 2006-05-29 Fuel metering device for capacitive fuel battery TWM307199U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW095209249U TWM307199U (en) 2006-05-29 2006-05-29 Fuel metering device for capacitive fuel battery
JP2006009001U JP3128770U (ja) 2006-05-29 2006-11-06 コンデンサ式燃料電池の燃料計量装置
US11/566,232 US7533567B2 (en) 2006-05-29 2006-12-03 Capacitance fuel volume measuring apparatus for fuel cell

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TW095209249U TWM307199U (en) 2006-05-29 2006-05-29 Fuel metering device for capacitive fuel battery

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TWM307199U true TWM307199U (en) 2007-03-01

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN107884032A (zh) * 2016-09-30 2018-04-06 佛山市顺德区美的电热电器制造有限公司 电烹饪器和用于其的防溢出检测装置

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JP6227114B2 (ja) * 2014-02-27 2017-11-08 三菱電機株式会社 手乾燥装置
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CN107884032A (zh) * 2016-09-30 2018-04-06 佛山市顺德区美的电热电器制造有限公司 电烹饪器和用于其的防溢出检测装置
CN107884032B (zh) * 2016-09-30 2024-04-16 佛山市顺德区美的电热电器制造有限公司 电烹饪器和用于其的防溢出检测装置

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