TW201641894A - Thermoelectric combustion furnace - Google Patents
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本發明係與熱電轉換技術有關，本發明係指一種具有熱電晶片保護機制之熱電燃燒爐。 The present invention relates to thermoelectric conversion technology, and the present invention relates to a thermoelectric combustion furnace having a thermoelectric wafer protection mechanism.
氣化爐(坊間又稱燃燒爐)是一種燃燒裝置，係將生質材料(樹枝、樹葉及紙類等)作為燃料，提供使用者對熱能之運用。一般燃燒爐有單層爐與雙層爐之差異，雙層爐的爐體包含一個內桶及一個外桶，內桶作為燃燒室，外桶通常用於隔熱防止使用者燙傷。燃燒時的高溫使生質材料產生氣化效應，氣化出的氣體有可燃性氣體與不可燃性氣體，可燃性氣體主要有一氧化碳、氫、甲烷，不可燃性氣體主要有二氧化碳、氮。其中一氧化碳、氫、甲烷是相當好的燃料，傳統農家使用燃燒爐提供家庭熱能，或作為家用瓦斯燃料的來源，可供煮食、發電或取暖使用。由於氣化爐使用生質材料的特性，非常適合用在戶外活動如登山、野營等生火取暖、煮食及發電等需求，目前體積、重量縮小至可容許單人攜帶之較小型氣化爐(燃燒爐)銷售量也逐年增加中。 Gasifiers (also known as furnaces) are combustion devices that use biomass materials (branches, leaves, paper, etc.) as fuel to provide users with thermal energy. Generally, the combustion furnace has a difference between a single-layer furnace and a double-layer furnace. The furnace body of the double-layer furnace includes an inner barrel and an outer barrel, and the inner barrel serves as a combustion chamber, and the outer barrel is generally used for heat insulation to prevent burns of the user. The high temperature during combustion causes the gasification effect of the biomass material. The gasified gas has flammable gas and non-flammable gas. The flammable gas mainly contains carbon monoxide, hydrogen and methane, and the non-flammable gas mainly contains carbon dioxide and nitrogen. Among them, carbon monoxide, hydrogen and methane are quite good fuels. Traditional farmhouses use furnaces to provide household heat or as a source of household gas fuel for cooking, power generation or heating. Because the gasifier uses the characteristics of raw materials, it is very suitable for outdoor activities such as mountaineering, camping and other fire heating, cooking and power generation. At present, the volume and weight are reduced to a smaller gasifier that can be carried by a single person ( The sales volume of the burners is also increasing year by year.
一般氣化爐使用生質材料的特性，適合用在戶外活動如登山、野營等生火取暖、煮食等需求，氣化爐點火啟 動後，需持續投入生質燃料，產生熱源供取暖及煮食使用。現代人因休閒娛樂而從事登山、健行或露營等戶外活動時，除了攜帶照明用手電筒或緊急通訊無線電等基本電器用品外，越來越普及化的攜帶式3C產品如平板電腦、智慧型手機等電子裝置皆以電池作為能量來源，故戶外活動所需之充電需求逐步增加。惟因使用者於野外操作活動時，電力取得不易，須攜帶具有儲電或產電之元件，如行動電源、電池及小型發電機，供照明或3C產品充電需求。然登山健行之地點往往地處偏遠，市電或產電裝置不易到達，且使用者須攜帶多樣裝備，增加人員困擾及負擔，因此市面上有許多燃燒氣化爐附加發電裝置的產品，以滿足戶外、野外活動的充電需求。 General gasifiers use the characteristics of raw materials, suitable for outdoor activities such as mountaineering, camping, etc., heating, cooking, etc., gasifier ignition After the move, it is necessary to continuously put in the raw fuel, and generate a heat source for heating and cooking. When modern people engage in outdoor activities such as hiking, hiking or camping for leisure and entertainment, in addition to carrying basic electrical appliances such as lighting flashlights or emergency communication radios, more and more popular portable 3C products such as tablet computers, smart phones, etc. Electronic devices use batteries as a source of energy, so the demand for charging for outdoor activities is gradually increasing. However, when the user operates in the field, the power is not easy to obtain, and it is necessary to carry components with power storage or power generation, such as mobile power, batteries and small generators, for lighting or 3C product charging needs. However, the location of hiking is often remote, the utility power or power generation equipment is not easy to reach, and users must carry a variety of equipment to increase personnel troubles and burdens. Therefore, there are many products for burning gasifiers with additional power generation devices on the market to meet the outdoor. The charging needs of field activities.
一般氣化燃燒爐最常選用的發電裝置為熱電晶片(或稱致冷晶片)，係利用晶片熱端(高溫端)、冷端(低溫端)兩邊之溫差產生「席貝克效應」輸出電流。具有熱電晶片之燃燒爐在生火取暖或煮食的同時，可利用燃燒物料產生之熱能轉換成電能，提供USB、手機、GPS定位系統等電子產品充電，或作為照明設備如鹵素燈、LED燈之電源使用。目前市面上具熱發電功能之燃燒爐可輸出的電能約2W至5W，電能輸出受限於熱電晶片本身轉換效率、燃燒爐體導熱與散熱設計等因素，大多僅能提供較小電量輸出使用。 The most commonly used power generation device for a gasification burner is a thermoelectric wafer (or a cryogenic wafer), which generates a "Sbeck effect" output current by the temperature difference between the hot end (high temperature end) and the cold end (low temperature end) of the wafer. The burner with the thermoelectric wafer can be converted into electric energy by using the heat energy generated by the burning material while heating or cooking, and provides charging of electronic products such as USB, mobile phones, GPS positioning systems, or as lighting equipment such as halogen lamps and LED lamps. Power usage. At present, the electric furnace with thermal power generation function can output about 2W to 5W, and the electric energy output is limited by the conversion efficiency of the thermoelectric wafer itself, the heat conduction and heat dissipation design of the combustion furnace body, and most of them can only provide a small power output.
美國專利US8297271係揭露一種使用TEG(熱電晶片)的攜行式燃燒裝置，該專利係具有一導熱棒，該導熱棒 係將爐體內部之熱量傳導至熱電晶片之熱端，使該熱端加熱速度變快，該熱電晶片冷端係連接散熱片，利用風扇將外部冷空氣吹向散熱片使熱電晶片冷端降溫，維持熱電晶片兩端溫差以提高電能轉換效率，同時把熱空氣導入燃燒爐內部以增加燃燒效率。該專利之缺點在於導熱棒將爐體內部高熱直接傳給熱電晶片，若燃燒溫度過高、超過熱電晶片之容許工作範圍，甚至使熱電晶片燒毀失效；熱電晶片之冷端、熱端兩端必須維持一定溫差才能有最佳化工作效率，熱端溫度取決於發熱源、冷端溫度取決於散熱片的散熱效率，散熱片之散熱效率則取決於散熱片材質、與空氣接觸面積、數量與配置方式，理論上散熱片的片數越多、與空氣接觸面積越大，則散熱效率越高，但片數過多會造成進氣阻力增加、反而降低散熱效果，且不同位置、不同方向的散熱片能接觸到的空氣量也不同，導致熱量分布不均影響散熱效果、降低熱電晶片轉換效率。若增加散熱片數量，體積、重量與成本勢必隨之提高，加工難度也隨之上升，不利於生產製造與銷售。 U.S. Patent No. 8,829, 271 discloses a portable combustion apparatus using a TEG (thermoelectric wafer) having a heat conducting rod, the heat conducting rod The heat inside the furnace body is transmitted to the hot end of the thermoelectric chip to make the heating end of the thermoelectric wafer faster. The cold end of the thermoelectric wafer is connected to the heat sink, and the external cold air is blown to the heat sink by the fan to cool the cold end of the thermoelectric chip. The temperature difference between the two ends of the thermoelectric wafer is maintained to improve the power conversion efficiency, and hot air is introduced into the interior of the combustion furnace to increase the combustion efficiency. The disadvantage of this patent is that the heat conducting rod directly transfers the high heat inside the furnace body to the thermoelectric chip. If the burning temperature is too high, exceeds the allowable working range of the thermoelectric chip, and even the pyroelectric chip burns out; the cold end and the hot end of the thermoelectric chip must be at both ends. Maintaining a certain temperature difference can optimize the working efficiency. The hot end temperature depends on the heat source and the cold end temperature depends on the heat dissipation efficiency of the heat sink. The heat dissipation efficiency of the heat sink depends on the heat sink material, air contact area, quantity and configuration. In theory, the more the number of heat sinks is, the larger the contact area with air is, the higher the heat dissipation efficiency is. However, the excessive number of sheets will increase the air intake resistance, but reduce the heat dissipation effect, and the heat sinks in different positions and directions. The amount of air that can be contacted is also different, resulting in uneven heat distribution affecting the heat dissipation effect and reducing the conversion efficiency of the thermoelectric wafer. If the number of heat sinks is increased, the volume, weight and cost will inevitably increase, and the processing difficulty will also increase, which is not conducive to manufacturing and sales.
熱管(Heat pipe)，或稱熱導管，是一種具有快速均溫特性的特殊材料，其中空的金屬管體，使其具有質輕的特點，而其快速均溫的特性，則使其具有優異的熱超導性能；熱管的運用範圍相當廣泛，最早期運用於航天領域，現早已普及運用於各式熱交換器、冷卻器、天然地熱引用…等，擔任起快速熱傳導的角色，更是現今電子產品散熱裝置中最普 遍高效的導熱(非散熱)元件。熱管為一內含作動流體之封閉腔體，其具有一吸熱端與放熱端，藉由腔體內作動流體持續循環的液汽二相變化，及汽&液流體於吸熱端及放熱端間汽往液返的對流，使腔體表面呈現快速均溫的特性而達到傳熱之目的。熱管之作動機制為：液相作動流體於吸熱端蒸發成汽相，此一瞬間在腔體內產生局部高壓，驅使汽相作動流體高速流向放熱端，汽相作動流體於放熱端凝結成液相後，藉由重力/毛細力/離心力…迴流至吸熱端，循環作動。熱管的優點包括傳熱效率高；傳熱量大，在較小溫差下可傳送較多的熱量；體積小、重量輕、結構緊湊；適用溫度範圍廣；熱流密度可調；熱源不受限制；工質循環無功率消耗等。 A heat pipe, or heat pipe, is a special material with fast uniform temperature characteristics. The empty metal pipe body makes it light in weight, and its fast uniform temperature characteristics make it excellent. The thermal superconducting performance; the application of heat pipes is quite extensive, and it was first used in the aerospace field. It has been widely used in various heat exchangers, coolers, natural geothermal references, etc., and plays the role of rapid heat conduction. The most common heat sink in electronic products Efficient thermal (non-heating) components. The heat pipe is a closed cavity containing an actuating fluid, which has a heat absorbing end and a heat releasing end, and the liquid and vapor two-phase change of the circulating fluid in the cavity is continued, and the steam & liquid fluid flows between the heat absorbing end and the heat releasing end. The convection of the liquid return causes the surface of the cavity to exhibit a rapid average temperature characteristic and achieve the purpose of heat transfer. The action mechanism of the heat pipe is: the liquid phase actuating fluid evaporates into a vapor phase at the endothermic end, and this moment generates a local high pressure in the cavity, drives the vapor phase actuating fluid to flow to the heat release end at a high speed, and the vapor phase actuating fluid condenses into a liquid phase at the heat releasing end. , by gravity / capillary force / centrifugal force ... back to the endothermic end, cycle action. The advantages of the heat pipe include high heat transfer efficiency; large heat transfer capacity, and can transfer more heat under a small temperature difference; small volume, light weight, compact structure; wide temperature range; adjustable heat flow density; unrestricted heat source; The quality cycle has no power consumption.
鑒於傳統技術之缺點，本發明係提供一種熱電燃燒爐，係以熱電晶片將燃燒燃料產生之熱能轉換為電能，本發明之熱電燃燒爐係使用熱管作為傳熱介質，並具有可改變熱通量之導熱單元，可保持熱電晶片兩端溫差處於最佳工作溫度範圍，保護熱電晶片不因過熱而燒毀失效。 In view of the shortcomings of the conventional technology, the present invention provides a thermoelectric combustion furnace for converting thermal energy generated by burning a fuel into electric energy by a thermoelectric wafer, and the thermoelectric combustion furnace of the present invention uses a heat pipe as a heat transfer medium and has a heat flux changeable. The heat conducting unit can keep the temperature difference between the two ends of the thermoelectric wafer in an optimal working temperature range, and protect the thermoelectric chip from burning failure due to overheating.
本發明係提供一種熱電燃燒爐，包括：一爐體；一以上熱電晶片，係設置於該爐體外殼一側，係將該爐體產生之熱能轉換為電能輸出；一以上熱管，係設置於該爐體外殼一側，該熱管係具有一吸熱端與一放熱端，該吸熱端係連接該熱電晶片；一進氣單元，該進氣單元係為一中空殼體， 係設置於該爐體一側並包覆該熱管之放熱端；以及一風扇，該風扇係將外部空氣送入該進氣單元內部，以帶走該熱管放熱端之熱量。 The invention provides a thermoelectric combustion furnace, comprising: a furnace body; one or more thermoelectric wafers disposed on one side of the furnace shell to convert thermal energy generated by the furnace body into electrical energy output; and one or more heat pipes are disposed on The heat pipe has a heat absorbing end connected to the thermoelectric chip, and an air intake unit, wherein the air intake unit is a hollow casing. And disposed on a side of the furnace body and covering the heat release end of the heat pipe; and a fan that sends outside air into the air intake unit to take away heat of the heat release end of the heat pipe.
本發明係提供一種熱電燃燒爐，其中該爐體係可為一雙層爐，該雙層爐係包括一內層爐與一外層爐，該內層爐與該外層爐間係具有容許空氣流動之空間，該空間係與該進氣單元之內部空間互相流通，該風扇係將外部空氣送入該進氣單元內部帶走該熱管放熱端之熱量，再將加熱後之熱空氣送入該內層爐與該外層爐間之空間；該內層爐側壁係環設有複數開孔，該開孔側邊係向外設置一擋片，流動於該空間內之空氣受該擋片阻擋，改變流動方向經由該開孔進入該內層爐之內部，增加燃燒效率。 The present invention provides a thermoelectric combustion furnace, wherein the furnace system can be a double-layer furnace comprising an inner layer furnace and an outer layer furnace, the inner layer furnace and the outer layer furnace having a flow allowing air a space that communicates with an internal space of the air intake unit, the fan sends external air into the air intake unit to take away heat of the heat release end of the heat pipe, and then sends the heated hot air to the inner layer. a space between the furnace and the outer layer furnace; the inner layer of the inner wall of the furnace is provided with a plurality of openings, the side of the opening is outwardly provided with a baffle, and the air flowing in the space is blocked by the baffle to change the flow The direction enters the interior of the inner furnace through the opening to increase combustion efficiency.
本發明係提供一種熱電燃燒爐，其中進一步包括：導熱單元，該導熱單元係設置於該爐體與該熱電晶片之間，係可依該熱電晶片之溫度高低，改變由該爐體傳至該熱電晶片之熱通量大小，防止該熱電晶片因溫度過高而燒毀失效，並維持該熱電晶片處於熱電轉換效率最佳化之工作溫度範圍；該導熱單元係可為兩種金屬以上結合而成之熱偶元件，或其他可改變熱通量之裝置；該導熱單元係可線性改變傳至該熱電晶片之熱通量、或階段式改變傳至該熱電晶片之熱通量，或在一特定溫度下直接斷開、不再傳熱至該熱電晶片，以達到保護該熱電晶片與維持最佳熱電轉換效率之效果。 The present invention provides a thermoelectric combustion furnace, further comprising: a heat conducting unit disposed between the furnace body and the thermoelectric wafer, depending on the temperature of the thermoelectric wafer, changing from the furnace body to the The heat flux of the thermoelectric chip prevents the pyroelectric wafer from burning out due to excessive temperature, and maintains the thermoelectric wafer in an operating temperature range in which the thermoelectric conversion efficiency is optimized; the heat conducting unit can be formed by combining two kinds of metals a thermocouple element, or other device that alters the heat flux; the thermally conductive unit can linearly vary the heat flux delivered to the thermoelectric wafer, or change the heat flux transmitted to the thermoelectric wafer in stages, or The temperature is directly broken and no longer transferred to the thermoelectric wafer to achieve the effect of protecting the thermoelectric wafer and maintaining optimum thermoelectric conversion efficiency.
本發明係提供一種熱電燃燒爐，其中該爐體內側底部係設有一集熱柱，該集熱柱係可將爐體之熱量導至爐體內部燃燒區中央，提高燃燒效果。 The invention provides a thermoelectric combustion furnace, wherein a heat collecting column is arranged on the inner bottom of the furnace body, and the heat collecting column can guide the heat of the furnace body to the center of the combustion zone inside the furnace body to improve the combustion effect.
本發明係提供一種熱電燃燒爐，其中該熱電晶片產生之電能係可用於驅動該風扇，或儲存作為其他用途。本發明之熱電燃燒爐可進一步包括：儲能單元，該儲能單元係連接該熱電晶片，係用於儲存該熱電晶片產生之電能；電能傳輸單元，該電能傳輸單元係連接該儲能單元，係將該儲能單元內之電能輸出，或將外部電能輸入該儲能單元；該電能傳輸單元係可為無線充電裝置、USB接頭、車用點菸器接頭或其他種類之有線式電能傳輸裝置，可依使用者需求作變化以符合不同電子產品的充放電需求。 The present invention provides a thermoelectric burner in which the electrical energy generated by the thermoelectric wafer can be used to drive the fan or for storage for other uses. The thermoelectric combustion furnace of the present invention may further include: an energy storage unit connected to the thermoelectric wafer for storing electrical energy generated by the thermoelectric wafer; and a power transmission unit connected to the energy storage unit, Outputting the electric energy in the energy storage unit or inputting external electric energy into the energy storage unit; the electric energy transmission unit may be a wireless charging device, a USB connector, a cigarette lighter connector for a vehicle, or other types of wired power transmission devices. It can be changed according to user needs to meet the charging and discharging requirements of different electronic products.
以上之概述與接下來的詳細說明及附圖，皆是為了能進一步說明本發明達到預定目的所採取的方式、手段及功效。而有關本發明的其他目的及優點，將在後續的說明及圖示中加以闡述。 The above summary, the following detailed description and the accompanying drawings are intended to further illustrate the manner, the Other objects and advantages of the present invention will be described in the following description and drawings.
11‧‧‧爐體 11‧‧‧ furnace body
12、23‧‧‧熱電晶片 12, 23‧‧‧ Thermoelectric wafer
13、24‧‧‧熱管 13, 24‧‧‧ heat pipe
131、241‧‧‧熱管吸熱端 131, 241‧‧‧heat pipe end
132、242‧‧‧熱管放熱端 132, 242‧‧‧heat pipe heat release end
14、25‧‧‧進氣單元 14, 25‧‧‧Air intake unit
141、251‧‧‧風扇 141, 251‧‧‧ fans
15、26‧‧‧導熱單元 15, 26‧‧‧ Thermal Conductive Unit
16、27‧‧‧集熱柱 16, 27‧‧ ‧ collector column
21‧‧‧內層爐 21‧‧‧Inner furnace
22‧‧‧外層爐 22‧‧‧outer furnace
28‧‧‧儲能單元 28‧‧‧ Energy storage unit
29‧‧‧電能傳輸單元 29‧‧‧Power Transfer Unit
圖1係為本發明之熱電燃燒爐第一實施例結構圖。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a first embodiment of a thermoelectric combustion furnace of the present invention.
圖2係為本發明之熱電燃燒爐第二實施例結構圖。 Fig. 2 is a structural view showing a second embodiment of the thermoelectric combustion furnace of the present invention.
以下係藉由特定的具體實例說明本發明之實施 方式，熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本發明之其他優點與功效。 The following is a description of the implementation of the present invention by way of specific specific examples. Other advantages and effects of the present invention will be readily apparent to those skilled in the art from this disclosure.
圖1係為本發明之熱電燃燒爐第一實施例結構圖，如圖所示，該第一實施例係包括：一爐體11；一以上熱電晶片12，係設置於該爐體11外殼一側，係將該爐體11產生之熱能轉換為電能輸出；一以上熱管13，係設置於該爐體外殼一側，該熱管係具有一吸熱端131與一放熱端132，該吸熱端係連接該熱電晶片12；一進氣單元14，該進氣單元係為一中空殼體，係設置於該爐體一側，並包覆該熱管13之放熱端132；一風扇141，該風扇141係將外部空氣送入該進氣單元14內部，以帶走該熱管放熱端131之熱量；一導熱單元15，該導熱單元15係設置於該爐體11與該熱電晶片12之間，係可依該熱電晶片12之溫度高低，改變由該爐體11傳至該熱電晶片12之熱通量大小，防止該熱電晶片12因溫度過高而燒毀失效，並維持該熱電晶片12處於熱電轉換效率最佳化之工作溫度範圍；其中該進氣單元14係可將吸收該熱管放熱端131熱量而加熱之空氣導入該爐體11中，增加燃燒效率；該爐體11內側底部係可設置一集熱柱16，該集熱柱16係可將爐體11之熱量導至爐體內部燃燒區中央，提高燃燒效果；該熱電晶片12產生之電能係可用於驅動該風扇14，或儲存作為其他用途。 1 is a structural view of a first embodiment of a pyroelectric combustion furnace of the present invention. As shown, the first embodiment includes: a furnace body 11; one or more thermoelectric wafers 12 are disposed on the outer casing of the furnace body 11. On the side, the heat energy generated by the furnace body 11 is converted into an electric energy output; one or more heat pipes 13 are disposed on one side of the furnace body casing, and the heat pipe system has a heat absorption end 131 and a heat releasing end 132, and the heat absorption end is connected. The thermoelectric wafer 12; an air intake unit 14 is a hollow housing disposed on one side of the furnace body and covering the heat releasing end 132 of the heat pipe 13; a fan 141, the fan 141 The external air is sent into the interior of the air intake unit 14 to take away the heat of the heat pipe end 131; a heat conducting unit 15 is disposed between the furnace body 11 and the thermoelectric chip 12, According to the temperature of the thermoelectric wafer 12, the heat flux transferred from the furnace body 11 to the thermoelectric wafer 12 is changed, the pyroelectric wafer 12 is prevented from being burnt due to excessive temperature, and the thermoelectric wafer 12 is maintained in thermoelectric conversion efficiency. Optimized operating temperature range; wherein the air intake unit 14 The air which is heated by absorbing the heat of the heat releasing end of the heat pipe 131 can be introduced into the furnace body 11 to increase the combustion efficiency; the bottom of the furnace body 11 can be provided with a heat collecting column 16 which can be used for the furnace body 11 The heat is directed to the center of the combustion zone within the furnace to increase the combustion effect; the electrical energy generated by the thermoelectric wafer 12 can be used to drive the fan 14, or stored for other uses.
圖2係為本發明之熱電燃燒爐第二實施例結構圖，如圖所示，該第二實施例係包括：一爐體，該爐體係具 有一內層爐21與一外層爐22，該內層爐21與該外層爐22間係具有容許空氣流動之空間，該內層爐21側壁係環設有複數開孔211；一以上熱電晶片23，係設置於該爐體外殼一側，係將該爐體產生之熱能轉換為電能輸出；一以上熱管24，係設置於該爐體外殼一側，該熱管24係具有一吸熱端241與一放熱端242，該吸熱端241係連接該熱電晶片23；一進氣單元25，該進氣單元25係為一中空殼體，係設置於該爐體一側，該熱管放熱端242係貫穿設置於該進氣單元25內部；一風扇251，該風扇係將外部空氣送入該進氣單元25內部，以帶走該熱管放熱端242之熱量；一導熱單元26，該導熱單元26係設置於該爐體與該熱電晶片23之間，係可依該熱電晶片23之溫度高低，改變由該爐體傳至該熱電晶片23之熱通量大小，防止該熱電晶片23因溫度過高而燒毀失效，並維持該熱電晶片23處於熱電轉換效率最佳化之工作溫度範圍；該內層爐21內側底部係可設置一集熱柱27，該集熱柱27係可將該內層爐21之熱量導至該內層爐內部燃燒區中央，提高燃燒效果；儲能單元28，該儲能單元28係用於儲存該熱電晶片23產生之電能；電能傳輸單元29，該電能傳輸單元29係連接該儲能單元28，係將該儲能單元28內之電能輸出，或將外部電能輸入該儲能單元28；該電能傳輸單元29係可為無線充電裝置、USB接頭、車用點菸器接頭或其他種類之有線式電能傳輸裝置，可依使用者需求作變化，以符合不同電子產品的充放電需求。 2 is a structural view of a second embodiment of the thermoelectric combustion furnace of the present invention. As shown in the figure, the second embodiment includes: a furnace body, the furnace system There is an inner layer furnace 21 and an outer layer furnace 22, and the inner layer furnace 21 and the outer layer furnace 22 have a space for allowing air to flow. The inner layer furnace 21 side wall ring is provided with a plurality of openings 211; one or more thermoelectric wafers 23 Is disposed on the side of the furnace shell to convert the heat energy generated by the furnace body into electrical energy output; one or more heat pipes 24 are disposed on one side of the furnace body casing, and the heat pipe 24 has a heat absorption end 241 and a The heat-dissipating end 242 is connected to the thermoelectric chip 23; an air-intake unit 25 is a hollow housing disposed on one side of the furnace body, and the heat-dissipating end 242 of the heat pipe is connected through the heat-dissipating end 242. Provided inside the air intake unit 25; a fan 251, the fan sends external air into the air intake unit 25 to take away the heat of the heat pipe heat releasing end 242; a heat conducting unit 26, the heat conducting unit 26 is set Between the furnace body and the thermoelectric wafer 23, the heat flux transferred from the furnace body to the thermoelectric wafer 23 can be changed according to the temperature of the thermoelectric wafer 23, and the thermoelectric wafer 23 is prevented from being overheated. Burning failure, and maintaining the thermoelectric wafer 23 in thermoelectric conversion effect The optimal operating temperature range; the inner bottom of the inner layer furnace 21 may be provided with a heat collecting column 27, which can guide the heat of the inner layer furnace 21 to the center of the inner combustion zone of the inner layer furnace The energy storage unit 28 is used to store the electric energy generated by the thermoelectric chip 23; the power transmission unit 29 is connected to the energy storage unit 28 to store the energy storage. The power in the unit 28 is output, or external power is input to the energy storage unit 28; the power transmission unit 29 can be a wireless charging device, a USB connector, a cigarette lighter connector for a vehicle, or other types of wired power transmission devices. Change according to user needs to meet the charging and discharging needs of different electronic products.
本發明之第二實施例中，該內層爐與外層爐間之空間係與該進氣單元25之內部空間互相流通，該風扇251係將外部空氣送入該進氣單元25內部帶走該熱管放熱端242之熱量，再將加熱後之熱空氣送入該內層爐與該外層爐間之空間，增加燃燒效率。 In the second embodiment of the present invention, the space between the inner layer furnace and the outer layer furnace and the inner space of the air intake unit 25 are mutually circulated, and the fan 251 sends outside air into the air intake unit 25 to take away the The heat of the heat pipe releasing end 242 is sent to the space between the inner layer furnace and the outer layer furnace to increase the combustion efficiency.
本發明之第二實施例中，該內層爐21之側壁開孔211側邊係可向外設置一擋片，流動於該內層爐與該外層爐間的空間內之空氣會受該擋片阻擋，改變流動方向經由該開孔211進入該內層爐21內部，可增加燃燒效率。 In the second embodiment of the present invention, the side wall opening 211 of the inner layer furnace 21 is provided with a baffle outwardly, and the air flowing in the space between the inner layer furnace and the outer layer furnace is subjected to the block. The sheet is blocked, and the flow direction is changed to enter the inside of the inner layer furnace 21 through the opening 211, thereby increasing the combustion efficiency.
一般熱電晶片之熱端、冷端均具有工作溫度範圍之限制，熱端、冷端間需保持一定的溫度差，熱電晶片才能有最佳的熱電轉換效率，因此熱電晶片的散熱機制極為重要。本發明係使用熱管作為熱電晶片冷端之傳熱介質，利用熱管傳熱效率高之優點，將熱電晶片冷端多餘的熱量迅速導出，使熱電晶片熱端、冷端之溫度差保持在該晶片設計最佳工作溫度範圍內，提高與保持熱電晶片之熱電轉換效率。熱管為一內含作動流體之封閉腔體，其具有一吸熱端與放熱端，藉由腔體內作動流體持續循環的液汽二相變化，及汽&液流體於吸熱端及放熱端間汽往液返的對流，使腔體表面呈現快速均溫的特性而達到傳熱之目的。相較於傳統單一材質之散熱片，本發明使用之熱管傳熱快速，不需設計構型複雜、體積龐大的多片式散熱單元，亦沒有散熱片不同部位熱分布 情況不同、導致散熱不均的問題。設置於進氣單元內之熱管放熱端佔用空間小，不會對流入該進氣單元之空氣造成過大阻力影響進氣效率。本發明只要增減熱管的數量，或增設其他散熱裝置如散熱片、散熱風扇、液冷式散熱器等等，即可適應不同大小規格之燃燒爐需求，生產難度低、運用彈性高。 Generally, the hot end and the cold end of the thermoelectric chip have a limitation of the operating temperature range, and a certain temperature difference between the hot end and the cold end is required, and the thermoelectric wafer can have the best thermoelectric conversion efficiency, so the heat dissipation mechanism of the thermoelectric wafer is extremely important. The invention uses a heat pipe as a heat transfer medium of the cold end of the thermoelectric chip, and utilizes the advantages of high heat transfer efficiency of the heat pipe to quickly extract excess heat of the cold end of the thermoelectric wafer, so that the temperature difference between the hot end and the cold end of the thermoelectric chip is maintained on the wafer. Improve and maintain the thermoelectric conversion efficiency of thermoelectric wafers within the optimal operating temperature range. The heat pipe is a closed cavity containing an actuating fluid, which has a heat absorbing end and a heat releasing end, and the liquid and vapor two-phase change of the circulating fluid in the cavity is continued, and the steam & liquid fluid flows between the heat absorbing end and the heat releasing end. The convection of the liquid return causes the surface of the cavity to exhibit a rapid average temperature characteristic and achieve the purpose of heat transfer. Compared with the conventional single material heat sink, the heat pipe used in the invention has fast heat transfer, and does not need to design a multi-chip heat dissipation unit with complicated configuration and bulk, and has no heat distribution in different parts of the heat sink. The situation is different, resulting in uneven heat dissipation. The heat pipe of the heat pipe disposed in the air intake unit takes up a small space, and does not cause excessive resistance to the air flowing into the air intake unit to affect the air intake efficiency. The invention can adapt to the demand of different sizes of burners as long as the number of heat pipes is increased or decreased, or other heat dissipating devices such as heat sinks, cooling fans, liquid-cooled radiators, etc. are added, and the production difficulty is low and the application flexibility is high.
本發明同時具有避免熱電晶片溫度過高燒毀之保護機制，現有具熱發電功能之燃燒爐產品，其熱電晶片多直接固鎖於爐體上，或以固定式導熱棒、導熱片等元件將爐體熱量持續不斷地傳至熱電晶片，此種配置方式雖有傳熱快速之優點，然而熱電晶片有其最高操作溫度限制，通常不超過200~300℃，即使持續對熱電晶片加溫到超過晶片預設工作溫度範圍，不僅無法提高熱電轉換效率，甚至會使熱電晶片燒毀或失效。為解決現有技術問題，本發明係具有一導熱單元，該導熱單元係可依該熱電晶片之溫度高低，改變由該爐體傳至該熱電晶片之熱通量大小，防止該熱電晶片因溫度過高而燒毀失效，並維持該熱電晶片處於熱電轉換效率最佳化之工作溫度範圍。該導熱單元係可為兩種金屬以上結合而成之熱偶元件，或其他可改變熱通量之裝置；該導熱單元係可線性改變傳至該熱電晶片之熱通量、或階段式改變傳至該熱電晶片之熱通量，或在一特定溫度下直接斷開、不再傳熱至該熱電晶片，以達到保護該熱電晶片與維持最佳熱電轉換效率之效果。 The invention also has a protection mechanism for avoiding excessive temperature burning of the thermoelectric chip. In the existing combustion furnace product with thermal power generation function, the thermoelectric wafer is directly locked on the furnace body, or the furnace is fixed by a fixed heat conduction rod, a heat conducting sheet and the like. The body heat is continuously transferred to the thermoelectric chip. Although this configuration has the advantage of rapid heat transfer, the thermoelectric wafer has its maximum operating temperature limit, usually not exceeding 200~300 °C, even if the thermoelectric wafer is continuously heated to exceed the wafer. The preset operating temperature range not only fails to improve the thermoelectric conversion efficiency, but even burns or fails the thermoelectric chip. In order to solve the problems of the prior art, the present invention has a heat conducting unit, which can change the heat flux transmitted from the furnace body to the thermoelectric chip according to the temperature of the thermoelectric chip, and prevent the thermoelectric wafer from being overheated. High and burn-out failure, and maintain the thermoelectric wafer in an operating temperature range where thermoelectric conversion efficiency is optimized. The heat conducting unit can be a thermocouple element formed by combining two kinds of metals, or other device capable of changing heat flux; the heat conducting unit can linearly change the heat flux transmitted to the thermoelectric chip, or the phase change transmission The heat flux to the thermoelectric wafer, or directly at a particular temperature, is no longer transferred to the thermoelectric wafer to achieve the effect of protecting the thermoelectric wafer and maintaining optimum thermoelectric conversion efficiency.
上述之實施例僅為例示性說明本發明之特點及其功效，而非用於限制本發明之實質技術內容的範圍。任何熟習此技藝之人士均可在不違背本發明之精神及範疇下，對上述實施例進行修飾與變化。因此，本發明之權利保護範圍，應如後述之申請專利範圍所列。 The above-described embodiments are merely illustrative of the features and functions of the present invention, and are not intended to limit the scope of the technical scope of the present invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.
11‧‧‧爐體 11‧‧‧ furnace body
12‧‧‧熱電晶片 12‧‧‧ Thermoelectric Wafer
13‧‧‧熱管 13‧‧‧heat pipe
131‧‧‧熱管吸熱端 131‧‧‧heat pipe end
132‧‧‧熱管放熱端 132‧‧‧heat pipe heat release end
14‧‧‧進氣單元 14‧‧‧Air intake unit
141‧‧‧風扇 141‧‧‧Fan
15‧‧‧導熱單元 15‧‧‧thermal unit
16‧‧‧集熱柱 16‧‧‧Heather column
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| TWI651875B (en) * | 2017-11-30 | 2019-02-21 | 恆怡能源科技股份有限公司 | Thermal power module for waste heat recovery |
| CN113078849A (en) * | 2021-05-19 | 2021-07-06 | 杭州牛米科技有限公司 | Combustion power generation furnace and power generation and charging method thereof |
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| CN101714765A (en) * | 2008-10-05 | 2010-05-26 | 陈绍勇 | Cold-hot water mobile phone charging and coal/gas stove semiconductor temperature difference power generation device |
| TWM424464U (en) * | 2011-09-29 | 2012-03-11 | Chung Shan Inst Of Science | Thermo-electric conversion system |
| CN103516037A (en) * | 2012-06-21 | 2014-01-15 | 饶宝其 | New technology for realizing cogeneration of industrial processes by utilization of thermoelectric material |
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| CN113078849A (en) * | 2021-05-19 | 2021-07-06 | 杭州牛米科技有限公司 | Combustion power generation furnace and power generation and charging method thereof |
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