200900638 九、發明說明： 【發明所屬之技術領域】 發明領域 本發明有關一熱發動機點火火星塞，特別是一比例模 5型機動載具微發動機，該點火火星塞為白熾細絲型。 I：先前技術3 發明背景 附圖的第1圖描繪譬如自美國專利案US 6 342 690及 US 6 346 688得知之一點火火星塞。 10 減這些文件，點火火星塞包含-其中形成有-貫通 孔位之點火火星塞主體部丨，該貫通孔徑係具有設計成可容 置一點火火星塞中央體部3之圓柱形整體形狀的大直徑第 4刀la，以及一亦為圓柱形整體形狀但具有比該大直徑 可察覺地更小的直徑且設計成可容置一熔接至中央體部3 15 一端的白熾細絲2之第二部分lb。 為了起動發動機，細絲2利用-低電壓電蓄能器被預 熱發動機被-外部機動力所開動且這造成燃氣被吸引。 一旦發動機被_ ’電子蓄能H係自點火火星塞切斷並藉 由發動機接續爆炸使細絲2保持白熾。 2〇 在諸如上述文件所述者之現今的點火火星塞中，自〇 3 m m厚的雲母片切割之兩個絕緣墊圈4 a及4 b係插入主體部1 與點火火星塞中央體部3之間且在中間體部3各端提供電性 絕緣。因為絕緣塾'圈4a及4b很脆弱且不易處置’點火火星 塞中央體部3與點火火裏塞主體部1之間的這些墊圈4a、4b 200900638 之組裝及配合操作係難以自動化。 此外，細絲2係以銘為基礎來製造，亦即一種很昂貴且 必須以最小可能用量使用之材料。然而，被兩雲母墊圈4a、 4b所絕緣的點火火星塞中央體部3係為不良的散熱器且這 . 5 減損了細絲2的可靠度及壽命：一般因此提供一很長細絲2 藉以補償此磨耗並保證點火火星塞的熱指標。 因為點火火星塞必須能夠承受發動機的燃燒室中的壓 力之應力，其在對於該第二孔徑部分lb之主體部1的一相對 端藉由絕緣墊圈4a及4b並藉由一鋼、黃銅或不銹鋼製造的 10 密封墊圈5、且亦藉由縐褶點火火星塞主體部1的頂部份而 受到密封。部分製造商甚至進行數項縐褶操作。 用於比例模型機動載具之另一點火火星塞係揭露於專 利案US 6 696 670中。根據該文件的實施例中，密封裝置係 ' 由仍可與上述實施例的墊圈相提並論之兩低環狀組件構 15 成。此外，如前，點火火星塞的上部份藉由縐褶被密封。 此點火火星塞的組件係被組裝，且特定言之，下環狀組件 (墊圈）藉由如下許多中間物被縐褶於位置中：主體部的上部 份、上墊圈、中央體部的凸緣及圓錐形壁，故導致具有一 複雜且略為不可靠的製程。因此，專利案US 6 696 670中之 20 點火火星塞仍很可以與先前文件的點火火星塞相提並論， 且因此仍有同類缺點。 由於已知具有顯著數量的組件且需要將其精密地組 裝，此點火火星塞的成本相當高且這些點火火星塞常因密 封不足而沒漏。 6 200900638 【發明内容3 發明概要 本發明之一目的係在於藉由提出一包含較少組件數量 的點火火星塞來避免這些缺點，其不具有雲母片墊圈型之 5 “有危險”組件，而其組裝簡單且可自動化進行，且其提供 更好的白熾細絲壽命，使細絲具有最小長度並可改良其點 火火星塞之中央體部與其他組件之間的熱交換。 因此，本發明主要由上述類型的一熱發動機點火火星 塞所組成，且其中該密封式閉合部件及電絕緣部件係為由 10 一可變形材料製成且設計成被容置在主體部之該第一孔徑 部分中的一點火火星塞中央體部之整體管狀形狀，且其中 預定接觸於主體部的該第一孔徑部分的一内部壁之此中間 體部的一外部壁係具有一波褶狀浮雕藉以容許一流體密封 部件沉積於該等壁之間並促進該中間體部的變形，該中央 15 體部配合至中間體部内藉以造成該中間體部的徑向變形， 使其可被驅入主體部内。 因此，點火火星塞並無絕緣墊圈且無密封墊圈，而是 具有較易生產、製造及組裝之管狀整體形狀的單一絕緣絕 緣中間體部。 20 藉由當中央體部被驅入時變成在主體部中變形（就徑 向擴張而言），中間體部密封住點火火星塞且能夠將其關 閉。因為簡單地藉由將部份推押在一起來進行，其將直接 地造成管狀中間體部擴張，點火火星塞組裝並不需要任何 特殊工具建置。 200900638 管狀整體形狀的中間體部譬如藉由一經陽極化表面處 理使其絕緣而由鋁產生。 根據一有利實施例，點火火星塞中央體部具有展現迴 旋對稱性之一形狀，其一較小直徑中間區係以中央體部的 5 一内部壁在中央體部與中間體部的該内部壁之間的兩接觸 區之間劃定一環狀形狀腔穴，該等接觸區係設計成可促進 散熱。利用環狀腔穴可以調整散熱，藉由中央體部與中間 體部之間的接觸區來提供該散熱。 圖式簡單說明 10 參照圖式閱讀下文詳細描述將可更加瞭解本發明，其 中： 第1圖（已對其作出評論)描繪根據先前技藝之一點火火 星塞； 第2圖為根據本發明的一點火火星塞之示意橫視圖； 15 第3至8圖顯示組裝第2圖的點火火星塞之不同接續操 作； 第9圖為根據本發明的點火火星塞之實施例的一替代 性形式之示意剖視圖。 ί：實施方式3 20 較佳實施例之詳細說明 第2圖所示的點火火星塞係包含一由一金屬材料製成 且其中形成有一貫通孔徑之點火火星塞主體部1，該貫通孔 徑的一大直徑圓柱形第一部分la容置一點火火星塞中央體 部3。 8 200900638 點火火星塞中央體部3係為由一金屬材料製成之展現 迴旋對稱性的一部份並具有一較小直徑中央區3 a使得中央 體部3在點火火星塞組裝操作期間較易處置。 一亦為圓柱形的第二部分lb具有一可察覺地更小的直 5徑且容置一熔接至中央體部3 —端之白熾細絲2。 以鉑為基礎，細絲2亦由一端溶接至主體部j。 管狀整體形狀的一點火火星塞中間體部6係被容置於 主體部的第一孔徑部分13中且設計成可接受中央體部3。 中間體部6由一可變形金屬材料製成，在此例中為鋁， 10利用硬陽極化所產生之一表面沉積或一裝飾性沉積使其為 絕緣性。中間體部6的絕緣性質係依據表面沉積的厚度而 定，其係為一可容易作調整之參數。 預疋接觸於主體部1的第一孔徑部分1&的一内部壁之 此中間體部6的-外部壁6構具有一波褶狀浮雕而形成徑 15向大起的％狀漣漪”藉以料—稱為厭氧密義的液體密 封產物被沉積在這兩壁之間且使其更容易令中央體部6變 形。 在一其中裝設有點火火星塞主體部丨之附件7上進行第 3至8圖所示的此點火火星塞之組裝(請見第3圖）。 20 利用一噴嘴8將厭氧密封劑喷灑在主體部1的第一孔徑 部分la之内部壁上’然後將中間體部6安裝在此第一孔徑部 分la中（請見第5圖）。 隨後利用喷嘴8將獻氧密封劑噴m在中間體部6的内部 壁上(請見第6圖）’然後將中央體部3驅入中間體部㈣（請見 200900638 =7圖）且g]為其尺寸及形狀’造成中間體部6略微往外擴張 藉以將其驅入主體部1内並密封住身為對於第二孔徑部分 lb的相對端之主體部m。因此’點火火星塞中間體部6二 有雙重目的，亦即使中央體部3與主體部1絕緣、並使這兩 5 元件鎖固在一起。 、 在此推押合併操作之後，完成了點火火星塞組件1、6 及3的組裝（請見第8圖）。 因此’簡單地藉由將部份垂直地推押在一起來進行用 手或自動進行之組裝，其因此為簡單、快速且容易並終將 10可以獲得一較好品質的點火火星塞。 中央體部3的中央區3a及中間體部6的内部壁係在中央 體部3與中間體部6的内部壁之間的兩高與低（圖上)接觸區 之間劃定環狀形狀的一腔穴。利用此組裝後仍充填空氣之 環狀腔穴係可以調整經由其與中間體部6的内部壁之接觸 15點之來自此中央體部3的散熱。 此措施提供較長的細絲2壽命且對於相同熱指標而言可 以使細絲2長度比起傳統設計的點火火星塞降低近似2 〇 %。 將對應於已描述者的元件標以相同編號之第9圖係描 繪用於形成本發明主體之點火火星塞的實施例之一替代性 20形式。在此點火火星塞的頂部，主體部1往下摺疊至中間體 部6上及中央體部3上以使組裝更為穩固，也就是說防止點 火火星塞的内部部份在製造異常情況中意外地脫出。亦可 想見其他安全防範部件。此處藉由將中央體部3推入中間體 部6内造成此中間體部6徑向地變形來產生基本組裝。 200900638 雖然上文已就部分特定示範性實施例來描述本發明， 其相虽明顯並未以任何方式侷限於這些示範性實施例且其 涵蓋落在申請專利範圍的範疇内之所描述部件及其組合的 所有技術均等物。當然，點火火星塞之不同組件的形狀細 命之修改亦落在本發明的範圍内。最後，雖然這主要係與 —用於比例模型載具微發動機的點火火星塞相關，本發明 絕未侷限於此應用且可使用在模型製造領域外之應用中， 可供用於所有類型的白熾細絲點火火星塞。 【阖式簡單説明】 第1圖（已對其作出評論)描繪根據先前技藝之一點火火 星塞； 第2圖為根據本發明的一點火火星塞之示意橫視圖； 第3至8圖顯示組裝第2圖的點火火星塞之不同接續操 作； 第9圖為根據本發明的點火火星塞之實施例的一替代 性形式之示意剖視圖。 【主要元件符號說明】 1…點火火星塞主體部 la···大直徑第一部分 lb…第二孔徑部分 2…白孅細絲 3···點火火星塞中央體部 3a···較小直徑中央區 4a，4b…絕緣塾圈 6...點火火星塞中間體部 6a…中間體部的外部壁 7…附件 8…喷嘴 11BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal engine ignition spark plug, and more particularly to a proportional mode 5 type mobile vehicle micro-engine, the ignition spark plug being of an incandescent filament type. I. Prior Art 3 Background of the Invention Figure 1 of the accompanying drawings depicts an ignition spark plug as known from U.S. Patent Nos. 6,342,690 and 6,346,688. 10 minus these documents, the ignition spark plug includes - an ignition spark plug body portion formed therein - a through-hole having a cylindrical overall shape designed to accommodate a central portion 3 of the ignition spark plug a fourth diameter la, and a second cylindrical shape that is also substantially cylindrical in shape but has a diameter that is appreciably smaller than the large diameter and that is designed to receive a fusion to the end of the central body portion 3 15 Part lb. In order to start the engine, the filament 2 is preheated by the -low voltage electric accumulator and the external engine power is actuated and this causes the gas to be attracted. Once the engine is shut off by the _'Electronic Energy Storage H-Series self-igniting spark plug, the filament 2 remains incandescent by the engine's subsequent explosion. 2. In today's ignition spark plugs such as those described in the above document, two insulating gaskets 4a and 4b cut from a 3 mm thick mica sheet are inserted into the body portion 1 and the ignition center portion of the spark plug. Electrical insulation is provided at each end of the intermediate portion 3. Since the insulating 塾 'rings 4a and 4b are fragile and difficult to handle, it is difficult to automate the assembly and mating operation of the washers 4a, 4b 200900638 between the ignition center portion 3 and the ignition igniting body portion 1. In addition, the filament 2 is manufactured on the basis of the name, that is, a material which is very expensive and must be used in the smallest possible amount. However, the central body 3 of the ignition spark plug insulated by the two mica washers 4a, 4b is a poor heat sink and this reduces the reliability and life of the filament 2: generally a very long filament 2 is provided. Compensate for this wear and ensure the thermal index of the sparking spark plug. Because the ignition spark plug must be able to withstand the stress of the pressure in the combustion chamber of the engine, at an opposite end of the body portion 1 for the second aperture portion lb by insulating the washers 4a and 4b and by a steel, brass or The 10 ferrule 5 made of stainless steel is also sealed by pleating the top portion of the body portion 1 of the spark plug. Some manufacturers even perform several pleating operations. Another ignition Mars plug for a proportional model mobile vehicle is disclosed in the patent US 6 696 670. According to an embodiment of the document, the sealing means is constructed of two low annular components which are still comparable to the gaskets of the above-described embodiments. In addition, as before, the upper portion of the ignition spark plug is sealed by the pleats. The components of the ignition spark plug are assembled, and in particular, the lower annular assembly (washer) is pleated in position by a number of intermediates: the upper portion of the body portion, the upper washer, and the convex portion of the central body The edges and conical walls result in a complex and somewhat unreliable process. Therefore, the 20-fired spark plug in the patent US 6 696 670 is still quite comparable to the ignition Mars plug of the previous document, and therefore there are still similar disadvantages. Since a significant number of components are known and need to be precision assembled, the cost of this sparking spark plug is quite high and these sparking spark plugs are often leaky due to insufficient seals. 6 200900638 SUMMARY OF THE INVENTION [0001] One of the objects of the present invention is to avoid these disadvantages by proposing an ignition spark plug containing a small number of components, which does not have a "dangerous" component of the mica plate gasket type, and The assembly is simple and automated, and it provides better incandescent filament life, minimizes filament filaments and improves heat exchange between the central body of the ignition spark plug and other components. Accordingly, the present invention is primarily comprised of a thermal engine ignition spark plug of the type described above, and wherein the sealed closure member and the electrically insulating member are made of 10 a deformable material and designed to be received in the body portion An integral tubular shape of a central body of an ignition spark plug in the first aperture portion, and wherein an outer wall of the intermediate portion of an inner wall of the first aperture portion predetermined to contact the body portion has a wavy shape The relief allows a fluid sealing member to be deposited between the walls and promote deformation of the intermediate portion, the central portion 15 being fitted into the intermediate portion to cause radial deformation of the intermediate portion so that it can be driven Inside the main body. Therefore, the ignition spark plug has no insulating gasket and no gasket, but a single insulating and insulating intermediate portion having a tubular overall shape that is relatively easy to manufacture, manufacture, and assemble. 20 By deforming in the main body portion when the central body is driven in (in terms of radial expansion), the intermediate portion seals the ignition spark plug and can close it. Because it is simply carried out by pushing the parts together, it will directly cause the tubular intermediate to expand, and the ignition of the spark plug assembly does not require any special tools to be built. 200900638 The intermediate portion of the tubular overall shape is produced from aluminum, for example by insulating it with an anodized surface. According to an advantageous embodiment, the central body of the ignition spark plug has one of the shapes exhibiting a rotational symmetry, a smaller diameter intermediate portion of which is the inner wall of the central body and the inner wall of the central body. An annular shaped cavity is defined between the two contact zones, and the contact zones are designed to promote heat dissipation. The heat dissipation can be adjusted by the annular cavity, which is provided by the contact area between the central body and the intermediate body. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be more fully understood from the following detailed description of the drawings, wherein: FIG. 1 (reviewed) depicts an ignition spark plug according to one of the prior art; FIG. 2 is a point in accordance with the present invention. A schematic cross-sectional view of a fire spark plug; 15 Figures 3 through 8 show different successive operations of assembling the sparking spark plug of Figure 2; Figure 9 is a schematic cross-sectional view of an alternative form of the embodiment of the sparking spark plug according to the present invention . ί: Embodiment 3 20 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The ignition spark plug shown in FIG. 2 includes an ignition spark plug main body portion 1 made of a metal material and having a through hole formed therein, and a through hole diameter The large-diameter cylindrical first portion la accommodates an ignition spark plug central body 3. 8 200900638 Ignition spark plug central body 3 is a part of a metal material that exhibits rotational symmetry and has a smaller diameter central zone 3 a such that the central body 3 is easier during the ignition spark plug assembly operation Dispose of. The second portion lb, which is also cylindrical, has an appreciably smaller straight diameter and accommodates an incandescent filament 2 that is welded to the end of the central body 3. On the basis of platinum, the filament 2 is also melted from one end to the main body portion j. An ignited spark plug intermediate portion 6 of tubular overall shape is received in the first aperture portion 13 of the body portion and is designed to accept the central body portion 3. The intermediate portion 6 is made of a deformable metal material, in this case aluminum, 10 which is insulative by surface deposition or a decorative deposition produced by hard anodization. The insulating property of the intermediate portion 6 depends on the thickness of the surface deposition, which is a parameter which can be easily adjusted. The outer wall 6 of the intermediate portion 6 which is in contact with the inner wall of the first aperture portion 1& of the main body portion 1 has a pleated embossing to form a diameter 15 which is increased in size. - a liquid-tight product called anaerobic cryptography is deposited between the two walls and makes it easier to deform the central body 6. On the attachment 7 in which the body portion of the ignition spark plug is mounted, the third is carried out. Assembly of this ignition spark plug as shown in Fig. 8 (see Fig. 3). 20 Spraying an anaerobic sealant onto the inner wall of the first aperture portion 1a of the main body portion 1 by a nozzle 8 'then the middle The body portion 6 is mounted in this first aperture portion 1a (see Fig. 5). The oxygen-encapsulating sealant is then sprayed on the inner wall of the intermediate portion 6 by means of the nozzle 8 (see Fig. 6). The central body 3 drives the intermediate portion (4) (see 200900638 = 7) and g] its size and shape 'causes the intermediate portion 6 to expand slightly outwardly to drive it into the body portion 1 and seal it for the body The body portion m of the opposite end of the second aperture portion lb. Therefore, the ignition spark plug intermediate portion 6 has a dual purpose Even if the central body 3 is insulated from the main body 1 and the two components are locked together, the assembly of the ignition spark plug assemblies 1, 6 and 3 is completed after the push and merge operation (see the 8)) So simply assemble by hand or automatically by pushing the parts vertically together, which is therefore simple, fast and easy and will eventually get a better quality ignition Mars The central portion 3a of the central body 3 and the inner wall of the intermediate portion 6 define a loop between the two high and low (upper) contact regions between the central body 3 and the inner wall of the intermediate portion 6. A cavity of a shape of the shape. The annular cavity which is still filled with air after the assembly can adjust the heat dissipation from the central body 3 via its contact with the inner wall of the intermediate portion 6 at this point. The long filament 2 life and for the same thermal index can reduce the length of the filament 2 by approximately 2 〇% compared to the conventionally designed ignition spark plug. The ninth diagram of the same number is used for the component corresponding to the described one. Depicting an ignition spark plug for forming the body of the present invention An alternative form 20 of the embodiment. At the top of the ignition spark plug, the body portion 1 is folded down onto the intermediate portion 6 and the central body 3 to make the assembly more stable, that is, to prevent ignition of the spark plug. The inner portion is accidentally released during the manufacturing abnormality. Other safety precautions are also conceivable. Here, the intermediate portion 3 is radially deformed by pushing the central body portion 3 into the intermediate portion 6 to generate The present invention has been described above with respect to certain specific exemplary embodiments, which are obviously not limited in any way by these exemplary embodiments and which are described in the scope of the claims. All technical equivalents of the components and combinations thereof. Of course, variations in the shape of the different components of the ignition spark plug are also within the scope of the present invention. Finally, although this is primarily related to the ignition of a spark plug for a proportional model carrier microengine, the invention is in no way limited to this application and can be used in applications outside the field of model making, for all types of incandescent Wire ignited the spark plug. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (which has been commented) depicts an ignition spark plug according to one of the prior art; FIG. 2 is a schematic transverse view of an ignition spark plug according to the present invention; FIGS. 3 to 8 show assembly Figure 2 is a schematic cross-sectional view of an alternative form of an embodiment of an ignition spark plug in accordance with the present invention. [Main component symbol description] 1...Ignition spark plug main body la···large diameter first part lb...second aperture part 2...white filament 3···Ignition sparkle plug central body 3a···small diameter Central zone 4a, 4b...Insulation loop 6...Ignition spark plug intermediate section 6a...External wall of intermediate section 7...Accessory 8...Nozzle 11