201006095 九、發明說明： 【發明所屬之技術領域】 本發明係一種限電流式充電裝置，其主要係限制燃料 電池之電力值輸出，並藉由將燃料電池輸出電力存儲於該 二次電池後再輸出使用。 【先前技術】 Φ 習知之燃料電池供電系統，通常以燃料電池為主，二 次電池為輔之電力供給模式，然而因燃料電池是以化學反 應產生電力的模組，其會因化學反應的不同而有電力輸出 的不穩定情形，故通常得要搭配穩壓裝置使用，然而過多 的穩壓裝置會有功率消耗的問題存在，而使燃料電池供電 無法穩定輸出，通常需要配合二次電池搭配使用，然在電 力供給切換上又需更多的切換裝置而因此浪費了燃料電 池的輸出功率。 Φ 由於目前燃料電池系統會因燃料電池輸出的變化，而 供電的不穩定，因此，本發明有鑑於習知燃料電池之缺 失，乃亟思發明一種燃料電池定電流輸出裝置。 【發明内容】 本發明燃料電池定電流輸出裝置，將燃料電池之電力 先儲存於該二次電池内，再由二次電池已穩定之電力情形 輸出。 201006095 一種用於燃料電池定電流輸出裝置，其包括一燃料電 池、一充電迴路、一二次電池以及一電壓轉換單元，該燃 料電池透過該充電迴路將電力儲存於二次電池，該二次電 池輸出之電力，再透過電壓轉換單元將電力穩定輸出。 前述該充電迴路進一步包括一感測單元、一充電單元 以及一控制單元，該感測單元可感測該燃料電池之電力輸 出情形，將電氣訊號回饋至該控制單元，透過該控制單元 的邏輯判斷及演算後，對該充電單元進行控制，藉此控制 φ 手段來控制該燃料電池的輸出，以穩定對該二次電池進行 充電。 前述該二次電池，可為複數個二次電池，透過一切換 單元來進行切換，於不同狀態下可以穩定的由燃料電池進 行充電，且透過該電壓轉換單元，提供一穩定電力輸出。 為使熟悉該項技藝人士了解本發明之目的、特徵及功 效，茲藉由下述具體實施例，並配合圖式，對本發明詳加 說明如後。 ❹ 【實施方式】 參考第一圖所示，其係本發明燃料電池定電流輸出裝 置之一具體實施例之元件關聯圖。本發明係有關於一種燃 料電池定電流輸出裝置，其包括一燃料電池（1)、一充電 迴路(2)、一二次電池部（3)、一電壓轉換單元（4)與一負載 (5)，前述該燃料電池（1)有一電氣連接至該充電迴路(2) ’ 該充電迴路P)有一電氣連接至該二次電池部（3)，該二次 6 201006095 電池部（3)另一端與該電壓轉換單元（4)電氣連接，該二次 電池部（3)透過該電壓轉換單元（4)提供該負載端（5)所需 之電力需求。 前述本發明燃料電池定電流輸出裝置中，該燃料電池 (1)其係利用富氳燃料與氧進行化學反應而產生電力輸出 的一電力產生裝置；該充電迴路(2)其係為將該燃料電池（1) 所輸出之電力轉換為該二次電池部（3)充電所需之電力， 且係可包括有直流電力升壓迴路或是直流電力降壓迴 φ 路，該二次電池部（3)係一可充放電之蓄電裝置；該電壓 轉換單元（4)其係可將該二次電池部（3)所輸出之電力轉換 為該負載端（5)所需之電力，其係可包括直流電力升壓迴 路或是直流電力降壓迴路。 前述本發明限流式充電裝置中，當該燃料電池（1)產 生之電力，經由該充電迴路(2)透過升壓或降壓的方式， 使該燃料電池（1)所輸出之電力轉為所需之電力來對該二 次電池部（3)進行充電，該二次電池部（3)充電完成後，再 φ 透過該電壓轉換單元（4)來進行電力的轉換，將該二次電 池部（3)所產生之電力經過轉換後用以供給該負载（5)端所 需之電力。 前述本發明限流式充電裝置中，該充電迴路（2)其係 可唯一限電流式充電迴路，或其他限電壓充電迴路與限功 率之充電迴路，亦可達到相同之效果。 參考第二圖所示，其係本發明燃料電池定電流輸出裝 置之再一具體實施例之元件關聯圖。前述該充電迴路（2) 進一步包括一充電單元(21)、一感測單元(22)與一控制單 201006095 元(23) ’該感測單元（22)電氣連接至該燃料電池⑴，其另 一端電氣連接至該充電單元⑼，該充電單元(21)電氣連 接至該二欠電池部⑶’此外該控制單元(23)一端電氣連接 至該感測單元(22)，另-端電氣連接至該充電單元⑼。 y冑述該燃料電池⑴所輸出之電力經過該感測單元(22) 後’會產生-電氣訊號給該控制單元(23)，在經由該控制 單元（23)來操控該充電單元（21)的動作與否’以決定是否 要對該二次電池部（3)進行充電，利用該感測單元(22)與該 β 控制單70 (23)可使該燃料電池（1)的電力輸出固定，如此更 有利於該燃料電池（1)的電力輸出操控。 參考第二圖所不，其係本發明燃料電池定電流輸出裝 置之另一具體實施例之元件關聯圖。前述實施例中，該二 次電池部（3)可進一步包括一電力切換單元(31)、一第一二 -人電池(32)與一第一二次電池（33)，該電力切換單元（31) 電氣連接至該充電迴路(2)與該電壓轉換單元(4)，另該第 一二次電池(32)與該第二二次電池(33)以並聯方式電氣連 ❹ 接於該電力切換單元（31)。 月ό述該電力切換單元（31)其係用以切換該充電迴路(2) 的電力對該第一一次電池(32)或該第二二次電池(33)進行 充電，並可切換由s玄第一 一次電池(31)或該第二二次電池 (33)來供應負載(5)端所需之電力需求。 此外該兩二次電池可輪流充放電，以確保負載(5)端 之電力供應無虞。 如述該二次電池部（3)進一步可以採複數個二次電池 並聯方式連接，以供應該負載（5)端之電力需求。 201006095 雖然本創作已以具體實施例揭露如上，然其所揭露的 具體實施例並非用以限定本創作，任何熟悉此技藝者，在 不脫離本創作之精神和範圍内，當可作各種之更動與潤 飾，其所作之更動與潤飾皆屬於本創作之範疇，本創作之 保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 ❹ 參考第一圖所示本發明燃料電池定電流輸出裝置之一具體實施 例之元件關聯圖； 參考第二圖所示本發明燃料電池定電流輪出裂置之另一具體實 施例之元件關聯圖； 參考第三圖所示本發明燃料電池定電流輪出裝置之再一具體實 施例之元件關聯圖。 ^ 【主要元件符號說明】 燃料電池(1) 充電迴路(2) 充電單元(21) 感測單元(22) 控制單元(23) 二次電池部（3) 電力切換單元(31) 201006095 第一二次電池(32) 第二二次電池(33) 電壓轉換單元(4) 負載(5)201006095 IX. Description of the Invention: [Technical Field] The present invention relates to a current limiting charging device which mainly limits the power value output of a fuel cell and stores the fuel cell output power in the secondary battery. The output is used. [Prior Art] Φ The conventional fuel cell power supply system is usually based on a fuel cell, and the secondary battery is supplemented by a power supply mode. However, since the fuel cell is a module that generates electricity by a chemical reaction, it may be different in chemical reaction. However, there is an unstable situation of power output, so it usually has to be used with a voltage regulator. However, too many voltage regulators have power consumption problems, and the fuel cell power supply cannot be stably outputted. Usually, it is necessary to use with a secondary battery. However, more switching devices are needed in the power supply switching, thus wasting the output power of the fuel cell. Φ Since the current fuel cell system is unstable due to changes in fuel cell output, the present invention contemplates a fuel cell constant current output device in view of the lack of a conventional fuel cell. SUMMARY OF THE INVENTION The fuel cell constant current output device of the present invention stores the power of the fuel cell in the secondary battery first, and then outputs the power of the secondary battery that has been stabilized. 201006095 A fuel cell constant current output device comprising a fuel cell, a charging circuit, a secondary battery, and a voltage conversion unit, wherein the fuel cell stores electric power in the secondary battery through the charging circuit, the secondary battery The output power is then stably outputted through the voltage conversion unit. The charging circuit further includes a sensing unit, a charging unit and a control unit. The sensing unit can sense the power output of the fuel cell, and feed the electrical signal to the control unit, and the logic of the control unit is determined. After the calculation, the charging unit is controlled, thereby controlling the φ means to control the output of the fuel cell to stably charge the secondary battery. The secondary battery may be a plurality of secondary batteries that are switched by a switching unit, can be stably charged by the fuel cell in different states, and provide a stable power output through the voltage conversion unit. The present invention will be described in detail by the following detailed description of the embodiments of the invention and the accompanying drawings. [Embodiment] Referring to the first figure, it is a component correlation diagram of a specific embodiment of a fuel cell constant current output device of the present invention. The invention relates to a fuel cell constant current output device, which comprises a fuel cell (1), a charging circuit (2), a secondary battery unit (3), a voltage conversion unit (4) and a load (5). The fuel cell (1) has an electrical connection to the charging circuit (2) 'the charging circuit P' has an electrical connection to the secondary battery portion (3), the secondary 6 201006095 battery portion (3) at the other end The voltage conversion unit (4) is electrically connected, and the secondary battery unit (3) transmits the power demand required by the load terminal (5) through the voltage conversion unit (4). In the above-described fuel cell constant current output device of the present invention, the fuel cell (1) is a power generating device that generates a power output by chemically reacting a rich fuel with oxygen; the charging circuit (2) is a fuel The power outputted by the battery (1) is converted into the power required for charging the secondary battery unit (3), and may include a DC power boost circuit or a DC power step back φ path, the secondary battery unit ( 3) is a chargeable and dischargeable power storage device; the voltage conversion unit (4) is capable of converting the power output by the secondary battery unit (3) into the power required by the load terminal (5), which is Including DC power boost loop or DC power step-down loop. In the current limiting charging device of the present invention, when the power generated by the fuel cell (1) is boosted or depressurized via the charging circuit (2), the power output by the fuel cell (1) is converted into The secondary battery unit (3) is charged by the required electric power, and after the secondary battery unit (3) is charged, the voltage conversion unit (4) is further transmitted through the voltage conversion unit (4) to convert the electric power. The power generated by the part (3) is converted to supply the power required by the end of the load (5). In the above-described current limiting charging device of the present invention, the charging circuit (2) is capable of a unique current limiting charging circuit, or other voltage limiting charging circuit and a limited power charging circuit, and can achieve the same effect. Referring to the second figure, it is a component diagram of still another embodiment of the fuel cell constant current output device of the present invention. The charging circuit (2) further includes a charging unit (21), a sensing unit (22) and a control unit 201006095 (23) 'the sensing unit (22) is electrically connected to the fuel cell (1), and the other One end is electrically connected to the charging unit (9), the charging unit (21) is electrically connected to the two under-cell portion (3)', and one end of the control unit (23) is electrically connected to the sensing unit (22), and the other end is electrically connected to The charging unit (9). y, the power outputted by the fuel cell (1) passes through the sensing unit (22), and an electrical signal is generated to the control unit (23), and the charging unit (21) is operated via the control unit (23). Action or not to determine whether to charge the secondary battery unit (3), and the power output of the fuel cell (1) can be fixed by the sensing unit (22) and the β control unit 70 (23) This is more advantageous for the power output control of the fuel cell (1). Referring to the second figure, it is a component diagram of another embodiment of the fuel cell constant current output device of the present invention. In the foregoing embodiment, the secondary battery unit (3) may further include a power switching unit (31), a first two-person battery (32) and a first secondary battery (33), and the power switching unit ( 31) electrically connected to the charging circuit (2) and the voltage converting unit (4), and the first secondary battery (32) and the second secondary battery (33) are electrically connected in parallel to the power Switching unit (31). The power switching unit (31) is used to switch the power of the charging circuit (2) to charge the first primary battery (32) or the second secondary battery (33), and can be switched by The first primary battery (31) or the second secondary battery (33) is used to supply the power demand required at the load (5) terminal. In addition, the two secondary batteries can be charged and discharged in turn to ensure that the power supply at the load (5) is flawless. As described above, the secondary battery unit (3) can further connect a plurality of secondary batteries in parallel to supply the power demand of the load (5). The present invention has been disclosed in the above embodiments, and the specific embodiments disclosed herein are not intended to limit the present invention. Any person skilled in the art can make various changes without departing from the spirit and scope of the present invention. And the retouching, the changes and refinements made by them are within the scope of this creation. The scope of protection of this creation is subject to the definition of the patent application scope attached. BRIEF DESCRIPTION OF THE DRAWINGS ❹ Referring to the first figure, a component correlation diagram of a specific embodiment of a fuel cell constant current output device of the present invention; reference to the second figure shows another fuel cell constant current wheel splitting of the present invention Component Correlation Diagram of a Specific Embodiment; Referring to the third diagram, a component correlation diagram of still another embodiment of the fuel cell constant current wheeling device of the present invention is shown. ^ [Main component symbol description] Fuel cell (1) Charging circuit (2) Charging unit (21) Sensing unit (22) Control unit (23) Secondary battery unit (3) Power switching unit (31) 201006095 First two Secondary battery (32) Second secondary battery (33) Voltage conversion unit (4) Load (5)