539838 A7 B7 五、發明説明（ <技術領域> 本發明係關於使用可燃性冷狀冰箱之除霜。 (請先閲讀背面之注意事項再填寫本頁) <背景技術> 日本專利申請㈣平8 _5 417 2號公報有舉出關於使用 習知之可燃性冷媒之冰箱。一面參照圖面一面說明上述習 知之冰箱。 訂— 在第31圖t，在冰箱本體丨的内部具有冷;東室2及冷藏 室3。冷康室2及冷藏室3係藉隔間壁6隔開著。在冷滚室2、 冷藏室3分別安裝著冷凍室門4與冷藏室門5。吸入口了係吸 入冷康室2内之空氣。口及入口 8係吸入冷藏室3内之空氣。吐 出口 9係將冷氣吐出冷;東室2内。風扇u係使冷氣循環。某 «Η)與冷康室2係II隔間壁12隔開著。除霜用玻璃管加熱 為15係藉以玻璃官覆蓋將鎳鉻合金線作成線圈狀者所構 成。屋頂16係防止除霜水直接滴下接觸於加熱器“所發出 蒸發音。金屬製的底板17係被絕緣保持，被設置於桶13與 加熱器15之間。儲壓器18被設置於蒸發器1〇的出口部。 其次，針對上述構造之習知之冰箱之動作加以說明。 冷卻冷凍室2與冷藏室3的場合，冷媒流通於蒸發器1〇 中冷卻蒸發器10。與此相同藉風扇的作動，由吸入口 7將冷 凍室2的升溫空氣、由吸入口 8將冷藏室3的升溫空氣送至冷 卻室汕。而且，該等升溫空氣藉蒸發器1〇被熱交換冷卻， 由吐出口9將冷部風送至冷康室2内，另外，由冷;東室2通過 連通口（未圖.示）將冷氣送至冰箱。在此，與蒸發器1〇作熱 父換之空氣為藉冷凍室門4及冷藏室門5的開關流入高溫外539838 A7 B7 V. Description of the invention (< Technical Field >) The invention relates to defrosting using a flammable cold refrigerator. (Please read the precautions on the back before filling this page) < Background Technology > Japanese Patent Application ㈣ 平 8 _5 417 No. 2 lists refrigerators using conventional flammable refrigerants. The conventional refrigerators will be described with reference to the drawings. Order-In Fig. 31 t, there is cold inside the refrigerator body. Room 2 and refrigerating room 3. The cold well room 2 and refrigerating room 3 are separated by a partition wall 6. In the cold rolling room 2 and refrigerating room 3, a freezing room door 4 and a refrigerating room door 5 are respectively installed. It sucks the air in the cold room 2. The mouth and inlet 8 suck the air in the refrigerating room 3. The outlet 9 is used to spit out the cold air; in the east room 2. The fan u is used to circulate the cold air. The Kang 2 Series II partition wall 12 is separated. The glass tube for defrosting is heated to 15 series, and the nickel-chromium alloy wire is formed into a coil shape by glass cover. The roof 16 prevents the defrost water from dripping and coming into contact with the heater. The evaporation sound is emitted. The metal bottom plate 17 is insulated and placed between the barrel 13 and the heater 15. The pressure accumulator 18 is placed on the evaporator The outlet section of 10. Next, the operation of the conventional refrigerator having the above-mentioned structure will be described. When cooling the freezer compartment 2 and the refrigerating compartment 3, the refrigerant flows through the evaporator 10 to cool the evaporator 10. Similarly, the fan 10 Acting, the warmed air of the freezing compartment 2 is sent from the suction port 7 and the warmed air of the refrigerating compartment 3 is sent to the cooling chamber Shan from the suction port 8. The warmed air is cooled by heat exchange through the evaporator 10 and is discharged from the discharge port. 9 Send the cold air to the cold room 2. In addition, the cold air from the east room 2 sends the cold air to the refrigerator through the connection port (not shown in the figure). Here, the air is exchanged with the evaporator 10 as the hot father. In order to use the switches of the freezer compartment door 4 and refrigerator compartment door 5
五、發明説明（2 ) 氣、與藉冷㈣2及冷藏室3的保存食品的水分的蒸發等被 高濕化之空氣。為此，在比其空氣低溫之蒸發1 中的水分著霜形成霜。另一方面，儲壓機18防止冷卻運轉 中的冷媒不足，或防止液冷媒直接回到壓縮機損傷壓縮 機’或謀求防止冷媒的流音。 如此，蒸發器10著霜後隨著其著霜量增加，阻害了蒸 發器10表面與熱交換空氣之傳熱。另外，著霜之霜形成通 風阻抗，由於風量降低發生冷卻不足。由此藉通電至玻璃 管加熱器15之鎳鉻合金線，藉由該處所放射之熱線，將附 著於蒸發器10與桶13與排水α14附近之霜溶解成水。 另外，如此溶解之除霜水的一部直接落至桶13，其他 則藉屋頂16避開加熱器15落至桶13,由排水排水^庫 外。此時，由加熱器15放射至桶13之熱線的一部，藉底板 17反射散亂至蒸發器1〇方向。 仁疋，在上述習知之構造，在使用可燃性冷媒之冷凍 旋裒中具有如其次之課題。也就是，由於可燃性冷媒之比 較的潛熱較大’所以在可燃性冷媒滯留之蒸發器1〇的配管 部中發生形成除霜不足之殘霜。其結I’因#殘霜阻害熱 傳達發生不冷。 另外，一般的，加熱器1 5的鎳鉻合金表面不用說其玻 璃笞加熱為的表面溫度非常高溫。從而，在可燃性冷媒由 瘵發為10的配管等洩漏的場合，具有所謂因由加熱器發生 之熱而著火之虞慮之課題。 <發明的開示〉 五、發明説明（3 ) 本發明之冰箱係解決上述課題者，且以 即使在可燃性冷媒“於 行除霜，t目女 相衣置之叹置大乳之環境下進 止因户：以防止可燃性冷媒的著火，同時可以防 口“而不冷之除霜裝置之冰箱為目的。 本發明之冰箱具有其次之構造。 ^ 5有·冷;東循環，係裝入可燃性冷媒，由順序連接 、與蒸發器所形成；及，除霜 X對刖述瘵發态進行除霜；又，前述除霜裝置係 由多數個玻璃管加熱器所構成。 相衣置係 發哭Π!二在除霜時以玻璃管加熱器加熱蒸發器及蒸 厂周相％合’可以將朝各個玻璃管加熱器之輪入作成 乂小。猎此’可以將玻璃管加熱器的表面溫度保持於 =紅著火溫度以下。進一步，由於可以有效率的加熱 Γ置之較多部分，所以具有所謂可以均—的除霜提昇除 相效率且無殘霜之優點。 <圖面的簡單說明> 第1圖為依本發明之第丨實施例之冰箱之冷凍循環之言,、 明圖。 第2圖為依本發明之第丨實施例之冰箱之要部縱 圖。 第3圖為第2圖所示之冰箱之要部概略圖。 第4圖為第2圖所示冰箱之玻璃管加熱器之要部縱截面 第5圖為依本發明之第2實施例之冰箱之要 文外縱戴面 本紙張尺度適用中國國家標準 (CNS) A4規格（210 X 297公釐） 539838 五、發明說明（ 圖〇 圖。 圖 圖。 圖 〇 圖 圖 弟6圖為依本發明之第3實施例之冰箱之要部縱截面 弟7圖為依本發明之第4實施例之冰箱之要部縱截面 弟8圖為依本發明之第5實施例之冰箱之要部縱截面 弟9圖為依本發明之第6實施例之冰箱之要部縱截面 第1〇圖為依本發明之第7實施例之冰箱之要部縱截面 第11圖為依本發明之第8實施例之冰箱之要部縱截面 第12圖為依本發明之第9實施例之冰箱之要部縱截 面 -----------------------魏…： (請先閲讀背面之注意事項再填寫本頁) •、=口 · 第13圖為由第12圖所示B來看之箭頭看正面圖。 第14圖為依本發明之第9實施例之冰箱之其他之蒸發 為與玻璃管加熱器的部分透視圖。 第15圖為由第14圖所示c來看之箭頭正面圖。 第16圖為依本發明之第1〇實施例之冰箱之蒸發器與玻 璃管加熱器的部分透視圖。 第17圖為由第16圖所示D來看之箭頭正面圖。 弟18圖為依本發明之第11實施例之冰箱之蒸發器與玻 璃管加熱器的部分透視圖。 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） A7 〜_______ B7 五、發明説明（5 ) 第19圖為由第18圖所示E來看之箭頭正面圖。 第20圖為依本發明之第丨2實施例之冰箱之蒸發器與玻 瑪管加熱器的部分透視圖。 苐21圖為由第20圖所示F來看之箭頭正面圖。 第22圖為為依本發明之第13實施例之冰箱之蒸發器與 坡5离管加熱器的部分透視圖。 弟23圖為由弟22圖所不G來看之前頭正面圖。 弟24圖為弟22圖所示冰箱之玻璃管加熱器的擴大部分 面圖。 第25圖為依本發明之第14之實施例之冰箱之冷凍循環 1¾) 〇 第26圖為依本發明之第η之實施例之冰箱之玻璃管加 熱器的部分截面圖。 第27圖為依本發明之第η之實施例之冰箱之其他之玻 璃管加熱器的部分截面圖。 第28圖為依本發明之第15之實施例之冰箱之玻璃管力口 熱器的部分截面圖。 第29圖為依本發明之第16之實施例之冰箱之玻璃管加 熱器的部分截面圖。 第30圖為依本發明之第π之實施例之玻璃管加熱器的 部分截面圖。 第3 1圖為習知之冰箱之要部縱截面圖。 <發明的實施型態> 以下’針對本發明之實施例，使用圖面加以說明。 本紙張尺度適用中國國家標準（⑶幻M規格（21〇χ297公藿） (請先閲讀背面之注意事項再填寫本頁)V. Description of the invention (2) Air and highly humidified air, such as evaporation of water in the cold storage 2 and refrigerated compartment 3 for storing food. To this end, the moisture in the evaporation 1 which is cooler than its air frosts and forms frost. On the other hand, the accumulator 18 prevents the refrigerant from being insufficient during the cooling operation, prevents the liquid refrigerant from directly returning to the compressor, and damages the compressor 'or seeks to prevent the flow of refrigerant. In this way, after the frosting of the evaporator 10, the amount of frosting increases, which prevents the heat transfer between the surface of the evaporator 10 and the heat exchange air. In addition, the frosted frost forms a ventilation resistance, and insufficient cooling occurs due to a decrease in air volume. Accordingly, the nickel-chromium alloy wire energized to the glass tube heater 15 is used to dissolve the frost attached to the evaporator 10, the bucket 13, and the drainage α14 into water by the heat rays radiated from the space. In addition, one part of the defrost water thus dissolved fell directly to the bucket 13, and the other fell to the bucket 13 through the roof 16 to avoid the heater 15 and was drained out of the warehouse. At this time, a portion of the heating line radiated from the heater 15 to the barrel 13 is scattered by the bottom plate 17 to the direction of the evaporator 10. Incheon has the following problem in the conventional structure using a combustible refrigerant using a flammable refrigerant. That is, since the latent heat of the flammable refrigerant is relatively large ', residual defrosting is formed in the piping portion of the evaporator 10 where the flammable refrigerant is retained. The knot I ’is not cold due to the #residual frost blocking heat transfer. In addition, in general, the surface temperature of the nickel-chromium alloy of the heater 15 is very high, not to mention the surface temperature at which the glass is heated. Therefore, when a flammable refrigerant leaks from a piping which bursts to 10, there is a problem that there is a fear of catching fire due to heat generated by a heater. < Explanation of the invention > V. Description of the invention (3) The refrigerator of the present invention solves the above-mentioned problems, and even in a flammable environment where the flammable refrigerant "is defrosted, the t-shirt is placed in a big breast. Admissions due to households: The purpose is to prevent the ignition of flammable refrigerants, and at the same time to prevent the "defrosting device of the refrigerator without cold" for the purpose. The refrigerator of the present invention has a second structure. ^ 5 Yes · Cold; East cycle, which is filled with flammable refrigerant, which is formed by sequential connection with the evaporator; and, Defrost X defrosts the described burst state; and the aforementioned defrost device is composed of a majority A glass tube heater. The clothes are crying! Secondly, during the defrosting, the glass tube heater is used to heat the evaporator and the phase around the steaming plant. It is possible to make the wheels of the glass tube heaters into small pieces. By doing this, the surface temperature of the glass tube heater can be kept below the red ignition temperature. Furthermore, since many parts can be heated efficiently, there is an advantage that the so-called uniform defrost can improve the dephasing efficiency without residual frost. < Simple description of the drawing > Fig. 1 is a schematic diagram of a refrigeration cycle of a refrigerator according to a first embodiment of the present invention. Fig. 2 is a longitudinal view of a main part of a refrigerator according to a first embodiment of the present invention. Fig. 3 is a schematic diagram of the main parts of the refrigerator shown in Fig. 2. Fig. 4 is a longitudinal section of the main part of the glass tube heater of the refrigerator shown in Fig. 2. Fig. 5 is an essential longitudinal surface of the refrigerator according to the second embodiment of the present invention. ) A4 specification (210 X 297 mm) 539838 5. Description of the invention (Figure 0. Figure. Figure 0. Figure 6 Figure 6 is a longitudinal section of the main part of the refrigerator according to the third embodiment of the invention. Figure 7 is Figure 8 of the essential part of the refrigerator according to the fourth embodiment of the present invention. Figure 8 of the essential part of the refrigerator according to the fifth embodiment of the present invention. Figure 9 is the essential part of the refrigerator according to the sixth embodiment of the present invention. Fig. 10 is a longitudinal section of the main part of the refrigerator according to the seventh embodiment of the present invention. Fig. 11 is a longitudinal section of the main part of the refrigerator according to the 8th embodiment of the present invention. Fig. 12 is a view according to the present invention. Longitudinal section of the main part of the refrigerator of the ninth embodiment ------------ Wei ... (Please read the precautions on the back before filling in this page) • 、 = 口 · Figure 13 is a front view of the arrow viewed from B shown in Figure 12. Figure 14 is the other evaporation of the refrigerator according to the ninth embodiment of the present invention is heating with glass tube Partial perspective view. Figure 15 is a front view of the arrow as viewed from c in Figure 14. Figure 16 is a partial perspective view of an evaporator and a glass tube heater of a refrigerator according to the tenth embodiment of the present invention. Figure 17 is a front view of the arrow viewed from D shown in Figure 16. Figure 18 is a partial perspective view of the evaporator and glass tube heater of the refrigerator according to the eleventh embodiment of the present invention. China National Standard (CNS) A4 specification (210X297 mm) A7 ~ _______ B7 V. Description of the invention (5) Figure 19 is a front view of the arrow viewed from E shown in Figure 18. Figure 20 is according to the invention Partial perspective view of the evaporator and glass tube heater of the refrigerator in the second embodiment. Figure 21 is a front view of the arrow viewed from F shown in Figure 20. Figure 22 is the thirteenth according to the present invention. Partial perspective view of the evaporator of the refrigerator and the off-pipe heater of slope 5 in the example. Figure 23 is a front view of the head before looking at Figure 22 from Figure 22. Figure 24 is a glass tube of the refrigerator shown in Figure 22. An enlarged view of a heater. Fig. 25 is a freezing cycle of a refrigerator according to a fourteenth embodiment of the present invention. 1¾) 〇 FIG. 26 is a partial cross-sectional view of a glass tube heater of a refrigerator according to an embodiment η of the present invention. Fig. 27 is a partial cross-sectional view of another glass tube heater of a refrigerator according to the nth embodiment of the present invention. Fig. 28 is a partial sectional view of a glass tube port heater of a refrigerator according to a fifteenth embodiment of the present invention. Fig. 29 is a partial sectional view of a glass tube heater of a refrigerator according to a sixteenth embodiment of the present invention. Fig. 30 is a partial sectional view of a glass tube heater according to a π embodiment of the present invention. Fig. 31 is a longitudinal sectional view of a main part of a conventional refrigerator. < Embodiments of the invention > Hereinafter, an embodiment of the present invention will be described using drawings. This paper size applies to Chinese national standards (3) M size (21 × 297 mm) (Please read the precautions on the back before filling this page)
訂I 539838 A7 ----- - B7_^_ 五、發明説明（6 ) (實施例1) 第1圖為依本發明之第丨實施例之冰箱之冷凍循環之說 明圖，第2圖為依本發明之第丨實施例之冰箱之要部縱截面 圖，第3圖為第2圖所示之冰箱之要部概略圖，第4圖為第2 圖所示冰箱之玻璃管加熱器之要部縱截面圖。 第1圖中，冷凍循環301係由順序連接壓縮機3〇2、冷凝機 303、減壓機構305與蒸發器3〇6所構成。另外，在其冷凍循 旋301裝入著可燃性冷媒。進一步，在蒸發器3〇6近旁配設 著除霜裝置307。 使用由第2圖至第4圖說明在丨圖所示具有冷凍循環之 具體的冰箱之構造。 由第2圖至第4圖中，在本第丨實施例之之冰箱，包含著 有作為第1圖所示除霜裝置的具體例之2個玻璃管加熱器 19a、19b。其各加熱裔在第3圖所示之玻璃管23内，係將金 屬材料例如由鎳鉻等所形成之加熱線設置成形成螺旋狀。 而且，該等加熱器19a、19b係並排著配置於蒸發器1〇的下 方。將一方之加熱器19a配置於蒸發器1〇的最下位配管21 的近旁。又，在後述中，在總稱各玻璃管加熱器19a、i9b 說明之際’以玻璃管加熱器19加以敘述。 如第2圖所示，在冷卻室2〇設置著有蒸發器1()、風扇 11、屋頂16、玻璃管加熱器19等。第3圖所示一對之保持零 件22被设置於加熱器19的兩端，一體的被固定於加熱器19& 及 19b〇 在如以上構造之第1實施例中，針對冰箱說明其動作。 本紙張尺度適用中國國家標準（CNS) A4規格U1GX297公釐):'一"" 一 (請先閱讀背面之注意事項再填寫本頁} •、可| 539838 A7 ------- B7_ 五、發明説明（7 ) 經過一定時間之後，為了除去附著於蒸發器10之霜停止風 扇11，而且，停止蒸發器10内之冷媒通過。其後，通電玻 璃官加熱器19，藉由其加熱器19所發生的熱除去附著於蒸 發器10的霜。藉除霜完成檢測裝置(未圖示)檢測除霜完畢 後停止朝加熱器19的通電完成除霜動作。 在此，因風扇11的停止蒸發器1〇内之可燃性冷媒之液 體藉本身重量最多量的滞留於蒸發器1〇的最下位配管Η。 其後，藉第1之玻璃加熱器19a的作動，多量滯留於最下位 配管21内之潛熱之較大可燃性冷媒在配管内蒸發。 此時，加熱器19由於位於最下位配管21的近旁，所以 可以促進滯留於蒸發器10的下部之配管内部之多量之可燃 性冷媒的蒸發。如此蒸發之可燃性冷媒朝蒸發器1〇的上部 之配管形成高溫氣體移動。朝蒸發器1〇的上部之配管移動 之可燃性冷媒之高溫氣體，由於蒸發器1〇上部的配管因著 霜而低溫，所以藉配管及散熱片被冷卻液化。該高溫氣體 將液化必要之熱潮蒸發器1〇上部的霜放熱進行除霜。此 時，可燃性冷媒由於潛熱較大，所以為了液化將較大之熱 置放熱之霜來促進除霜。如此，藉熱虹吸管現象進行蒸發 器10的除霜。另外，以熱虹吸管加上除霜，藉來自加熱器 19的直接受熱’蒸發器10與周邊之零件及壁的霜化後，同 時溫暖周邊的空氣對流，進行蒸發器1〇全體的除霜。 一方面’第2之玻璃管加熱器19b由於與加熱器…並排 被配置於蒸發器1〇的下方，所以與習知相比可以使朝各個 玻璃管加熱器之輸入較小。藉此，玻璃管加熱器的表面溫 五 、發明説明（Order I 539838 A7 ------B7 _ ^ _ V. Description of the invention (6) (Embodiment 1) Figure 1 is an explanatory diagram of the refrigeration cycle of a refrigerator according to the first 丨 embodiment of the present invention, and Figure 2 is A longitudinal sectional view of a main part of a refrigerator according to a first embodiment of the present invention, FIG. 3 is a schematic view of the main part of the refrigerator shown in FIG. 2, and FIG. 4 is a view of a glass tube heater of the refrigerator shown in FIG. 2. A longitudinal section of the main part. In Fig. 1, a refrigeration cycle 301 is composed of a compressor 302, a condenser 303, a decompression mechanism 305, and an evaporator 306 connected in this order. The freezing cycle 301 is filled with a flammable refrigerant. Further, a defrost device 307 is arranged near the evaporator 306. The structure of a specific refrigerator having a refrigerating cycle shown in Fig. 2 will be described using Figs. 2 to 4. As shown in Figs. 2 to 4, the refrigerator according to this embodiment includes two glass tube heaters 19a and 19b as specific examples of the defrosting device shown in Fig. 1. Each of the heating wires is arranged in a glass tube 23 shown in Fig. 3, and a heating wire formed of a metal material such as nickel chromium is arranged in a spiral shape. The heaters 19a and 19b are arranged below the evaporator 10 side by side. One of the heaters 19a is disposed near the lowermost pipe 21 of the evaporator 10. In the following description, the glass tube heaters 19a and i9b will be collectively described as the glass tube heaters 19 when they are collectively described. As shown in FIG. 2, the cooling chamber 20 is provided with an evaporator 1 (), a fan 11, a roof 16, a glass tube heater 19, and the like. A pair of holding parts 22 shown in Fig. 3 are provided at both ends of the heater 19, and are integrally fixed to the heaters 19 and 19b. In the first embodiment configured as described above, the operation of the refrigerator will be described. This paper size applies to China National Standard (CNS) A4 specification U1GX297 mm): '一 " " One (Please read the precautions on the back before filling out this page} • 、 可 | 539838 A7 ------- B7_ 5. Description of the invention (7) After a certain period of time, the fan 11 is stopped in order to remove the frost attached to the evaporator 10, and the refrigerant in the evaporator 10 is stopped from passing. Thereafter, the glass heater 19 is turned on, and The heat generated by the heater 19 removes the frost attached to the evaporator 10. The defrosting completion detection device (not shown) detects the completion of the defrosting and stops the power to the heater 19 to complete the defrosting operation. Here, the fan 11 The liquid of the flammable refrigerant in the stopper 10 is retained in the lowermost pipe Η of the evaporator 10 by its own weight. Thereafter, a large amount is retained in the lowermost position by the operation of the first glass heater 19a. The large flammable refrigerant with latent heat in the piping 21 evaporates in the piping. At this time, since the heater 19 is located near the lowermost piping 21, it can promote a large amount of flammable refrigerant remaining inside the piping of the lower portion of the evaporator 10. Evaporation The flammable refrigerant thus vaporized moves toward high-temperature gas in the piping at the upper part of the evaporator 10. The high-temperature gas of the flammable refrigerant moving toward the piping in the upper part of the evaporator 10 is caused by frost due to frost. The temperature is low, so piping and fins are cooled and liquefied. This high-temperature gas will defrost the frost on the upper part of the hot wave evaporator 10 necessary for liquefaction. At this time, the latent heat of the flammable refrigerant will be larger for liquefaction. Heat exothermic frost to promote defrost. In this way, the defrost of the evaporator 10 is performed by the thermosiphon phenomenon. In addition, the defrost is added by the thermosiphon, and the evaporator 10 and the surrounding parts are directly heated by the heater 19 After the defrosting of the walls, the surrounding air convection is warmed at the same time, and the entire defrosting of the evaporator 10 is performed. On the one hand, the second glass tube heater 19b is disposed below the evaporator 10 side by side with the heater ... Therefore, compared with the conventional method, the input to each glass tube heater can be made smaller. Thus, the surface temperature of the glass tube heater can be reduced.
度在採用異丁燒作為可燃性冷媒之著火溫度例如可燃性A 合’可則爾峨以下。_般輻射係比例於發: 體的表面積。從而，以多數個構成加熱器，方面，與以; 2構=比’由於表面積增大所以朝蒸發器1G的傳熱加 、立一步’由於可以有效率的加熱著霜量較多之蒸發器 下和所以I以均一的除霜提昇除霜效率形成無霜_ ^ 如此，療發器10及其周邊係藉配管内之可燃性冷媒之 熱虹=管效果，與多數個加熱器19a、州的直接的受熱， ::發益10全體被均一的除霜，除霜效率提昇形成無霜殘 。另外’猎多數配設玻璃管加熱器（19a、19b)，各加熱 器19a、19b的動作時間被短縮化。藉此比 ： 短縮，加埶器l9a、I9h沾本右、θ Λ *、、、才間破 —19a 19b的表面溫度，更可以確實的被抑制 :可燃性冷媒的著火溫度以下。進一步’由於以—對之之 保持零件-體的構成2個玻璃管加熱器19&、⑽ 皮 變簡單裝配也較容易。 稱^ 、上在本第1貫施例中之冰箱，係藉設置多數個玻 f管加熱器作為用以除霜蒸發器之除霜裝置，在各個玻璃 官加熱器中可以通電時的溫度降低至小於可燃性冷媒之著 火溫度。也就是’例如可以一面與習知維持同等除霜能力 -面以小於可燃性冷媒之著火溫度進行除霜。從而，例如 可燃性冷媒即使在茂漏至除霜袭置之設置空氣中之環境下 進行除霜的場合’亦可以防止可燃性冷媒的著火，同時可 以防止因霜殘留而不冷。 (實施例2) 五、發明説明（9 ) 第5圖為依本發明之第2實施例之冰箱的要部縱截面 圖。 本第2之實施例與上述第！之實施财同之點為其次之 點。 在第5圖中，多數的之玻璃管加熱器係配置在相對向挟 持蒸發器10之位置。也就是，在蒸發器1〇的下方設置第卫 之玻璃管加熱器25a，同時在蒸發器1〇的上部設置著第2之 玻璃管加熱器25b。而且，同加熱器25b係設置在儲壓器以 的近旁。 針對如以上構造之冰箱說明其動作。 如在第1之實施例之說明，在除霜時，蒸發器1〇内之可 燃性冷媒的液體藉本身重量最多量的滯留於蒸發器！ 〇的最 下位配管2卜而且’藉加熱器25a的作動，最下位配管附近 的冷媒液體在配管内蒸發朝蒸發器1〇的上部之配管移動。 朝上部配管移動之可燃性冷媒的高溫氣體，係藉配管及散 熱片被冷卻液化。該高溫氣體將液化必要之熱朝著霜於塞 發器10上部之霜放熱進行除霜。而且，被液化之冷媒再度 回到最下位配管21藉重複熱虹吸管現象，除去蒸發器全^ 的霜。 藉蒸發器10的做法，滯留於除壓器18，一部之可燃性 冷媒引起回不㈣最下位配管21，其滞留部分容易形成除霜 時最後除霜部位。此場合，藉來自設置於蒸發器1〇的上部 之加熱器25b的減，可以短縮其滞留部分之除霜時間。其 結果’更均-的進行蒸發器及其周邊的除霜，由於提 539838 五、發明説明（10 ) 霜效率所以沒有霜殘留，進一步，藉短時間的破璃管加孰 益的動作，由於可以完成除霜所以也與省能源有關。 ^如以上本發明之第2之實施例之冰箱，由於將多數個玻 璃官的配置位置位於相對向挾持蒸發器之位置作為蒸發器 的上下’所以可以由上下兩面有效率的加熱蒸發器。由於 可以將各個玻璃管加熱器的發熱量作成較小，所以可以 表面溫度保持於可燃性冷媒之著火溫度以下。進一步， :可以均-的除霜提昇除霜效率所以也與省能源有關。 :步，亦可以確實的除去配置於蒸發器上部之儲壓器 霜，形成無霜殘餘。從而，即使在可燃性冷媒线漏至除相 衣置的設置空氣之環境下進行除霜的場合，亦可以防止可 燃性冷媒的著火，同時可以防止因霜殘留而不冷。 又，依瘵發器的做法，也考慮到其他部分最需要花 除霜的時間的場合，但其場合，若將第2之玻璃管加熱器配 置在其近旁的話即可。 更進一步，相對向於蒸發器的前後方向，也可以分別 設置破璃管加熱器，該場合，蒸發器1〇的除霜水由於不 要直接淋上玻璃管25a所以也可以省略屋頂16。 (貫施例3) 第6圖為依本發明之第3實施例之冰箱的要部縱截 圖。 本第3之貝施例與上述各實施例不同之點為其次之· 在第6圖中，第1之玻璃管加熱器26a係設置於蒸發器 的下方，同時在蒸發器10的中部設置著第2之玻璃管加熱 將 由 進 的 霜 費 必 面 •點 10 器 本紙張尺細中規格⑵0X297公釐了 539838 五、發明説明（11 ) 26b 〇 針對如以上之構造之冰箱說明其動作。 置 中 除霜時通電於加熱器26a同時也通電於加熱器26b。藉 加熱器26a的通電發熱，大部分係加熱形成輻射熱之直接蒸 發10。另外，依來自加熱器26a的玻璃管表面之傳熱之熱 之空氣形成溫暖的上升氣流，沿著蒸發器1〇朝上部移動。 其移動之際，使附著於途中之蒸發器1()及蒸發器iq之霜升 溫。如此蒸發器10由下部到上部順序的被加熱。更藉設 於瘵發态10之中部之加熱器26b，可以加熱由蒸發器1 〇的 部到上部之升溫較遲之部分。 加 或 霜 另外，在設置於蒸發器10的下方之加熱器26a，射熱 内向上之熱可以加熱直接蒸發器10。一方面，向下之熱 一旦接觸到桶13藉反射形成加熱蒸發器10。與此相比， 熱态26b由於設置於蒸發器10的中部，所以藉上下方向、 丽後方向可可以直接加熱蒸發器1〇。從而，蒸發器的除相 由於可以極快均-的進行，所以可以將玻璃管加熱器的表 面溫度抑制於可燃性冷媒的著火溫度以下。其結果，可 性冷媒即使$漏在除霜裝置的^置空氣之環境下進行除 的場合，亦可以防止可燃十生冷媒的著纟，同時可以防止 殘留霜而不冷。 (實施例4) 第7圖為依本發明之第4實施例之冰箱之要部截面圖。 本第4之實施例與上述各實施例之不同點為其次之點。 在第7圖中，第1之玻璃管加熱器27a設置於蒸發器ι〇 本紙張尺度適用中關家標準(⑽)八顿^^"297公釐) 539838 A7 B7 五、發明説明（l2 ) 的下方，一方面，第2之玻璃管加熱器27b係設置於蒸發器 10之前後之任一方。為了設置加熱器27b在蒸發器10的散熱 片之一部設置著切口部28。另外，將配置於蒸發器10的下 方之加熱器27a的容量設定成比配置在比其上方之加熱器 27b還大。 針對如以上構造之冰箱說明其動作。 在除霜時通電至加熱器27a及加熱器27b後，藉設置於 蒸發器10下方之加熱器27a由蒸發器10的下部進行除霜。在 蒸發器10中，藉熱虹吸管效果，將升溫較遲之蒸發器部分， 藉設置於蒸發器10的前後之任一之加熱器2 7 b，可以藉加熱 將附著於蒸發器10之霜有效率的除去。而且，由於將配置 於蒸發器10的下方之加熱器27a設定成比配置於比其上方 之加熱器27b還大，從而，蒸發器10的除霜由於可以極快均 一的進行，所以可以將玻璃管加熱器27a、27b的表面溫度 抑制於可燃性冷媒的著火溫度以下。其結果，可燃性冷媒 即使洩漏在除霜裝置的設置空氣之環境下進行除霜的場 合，亦可以防止可燃性冷媒的著火，同時可以防止因殘留 霜而不冷。 另外，在蒸發器10的散熱片的一步設置著切口部28， 配置於蒸發器10的前後之任一方之加熱器27b，由於被配設 於其切口部28，所以可以使為了設置加熱器27b所產生的無 效空間達到最小。 另外，即使設置於蒸發器10的前後之任一處，溶解附 著於蒸發器10之霜之水很難淋於加熱器27b。其結果，也 15 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 五、發明説明（丨3 ) 具有所謂在風扇11的作動時，對於加熱器27b沒有必要新設 置形成阻害風路之要因之屋頂之優點。 (實施例5) 第8圖為依本發明之第5實施例之冰箱之要部擴大圖。 本第5之實施例與上述各實施例不同之點為其次之點。 在第8圖中，溫度傳感器29檢測玻璃管加熱器19的表面 溫度。控制裝置3(Hf、0N/0FF控制其加熱器19之電壓施加。 加熱器19的内部係配設著有加熱器線3 j。 針對如以上構造之冰箱說明其動作。 在除霜時進行通電至加熱器19内部之加熱器線31。而 且，藉檢測玻璃管的表面溫度之溫度傳感器29及控制裝置 30’ ΟΝ/OFF控制加熱器19之電壓施加，確實的一面控制加 熱器19的表面溫度小於可燃性冷媒的著火溫度一面進行除 霜。眾知作為可燃性冷媒為R6〇〇a(異丁烷）等，但是其著火 溫度為460°C，將加熱器19的表面溫度通電時間控制在保持 可燃性冷媒之小於著火溫度之例如45(rc以下進行除霜。 從而，以任何的原因變動朝玻璃管加熱器的施加電壓 欠同，或不作用取霜完成檢測，形成空焚狀態時，可燃性 冷媒即使洩漏在除霜裝置的設置空氣之環境下進行除霜的 場合，亦可以防止可燃性冷媒的著火。 (實施例6) 第9圖依本發明之第6實施例之冰箱之要部擴大圖。 本第6之實施例與上述各實施例不同之點為其次之點。 在第9圖中，溫度傳感器29係檢測玻璃管加熱器丨9的表 面溫度。控制裝置32係高低控制其加熱器19的施加電壓之 控制裝置。在加熱器19的内部配設著有加熱器線3卜 針對如以上構造之冰箱說明其動作。 在除霜時進行通電至加熱器19内部之加熱器線^。而 且，藉檢測玻璃管的表面溫度之溫度傳感器29及控制裝置 3时〇,高低控制加熱器19之電壓施加，確實的—面控制加熱 :19的表面溫度小於可燃性冷媒的著火溫度一面進行除 霜。眾知作為可燃性冷媒為R600a(異丁烷）等，但是其著火 溫度為46Gt，將加熱器19的表面溫度高低控制施加電壓使 八保持小於可燃性冷媒之著火溫度之例如45〇。〇以下進行 除霜。 從而，以任何的原因變動朝玻璃管加熱器的施加電壓 又回，或不作用取霜完成檢測，形成空焚狀態時，可燃性 冷媒即使洩漏在除霜裝置的設置空氣之環境下進行除霜的 場合，亦可以防止可燃性冷媒的著火。進一步，進行施加 電壓的高低控制，可以使加熱器線的溫度變化較小，由於 可以防止斷線之故，所以可以防止因斷線時發生的火發而 著火。 又 (實施例7) 第10圖為依本發明之第7之實施例之冰箱之要部截面 圖。 在第10圖中，冰箱本體101包含著有：外箱102、内箱 103、與在其外箱丨〇2與内箱1〇3之間一体充填發泡之硬質聚 胺酯發泡斷熱材104。冷藏室1〇5與冷凍室1〇6係藉區劃壁 17 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 539838 A7 B7 15 管 五、發明説明 107被隔開。瘵發器1〇8被安裝於冷凍室的背面。聚苯乙 ㈣泡体⑽被配設於蒸發器1()8的前面，斷熱著收納蒸發 抑108房間與冷/東室1G6。在聚笨乙婦發泡体⑽的外側安裝 著成开7¼月曰之化妝板11〇。在其化妝板ιι〇一體的形成著冷 氣人出口 111。在化妝板110的下部端面與内箱1〇3之間設置 著冷氣吸入口 112。 冷氣攪拌用風扇馬達113係安裝於化妝板11〇的一區。 其風扇馬達113係將在蒸發器⑽被冷卻之冷氣朝冷束室 106及其他之溫度帶之室（未圖示）吐出。除霜接水盤114位 置於洛發器108的下方。其接水盤114的上面開口部，係比 蒸發器1〇8的下面外形若干開口著。玻璃管加熱器ιΐ5係安 衣於位置在条發$ 1G8與接水盤114之間。蒸發器⑽的蒸發 笞116與政熱片ip係藉壓入或斂合被固定著。 蒸發盤119被配設於接水盤114的下方，滞留滴下於接 j盤114之除霜水。放熱管12〇係被配置於蒸發盤ιΐ9内，使 滞留於蒸發盤119之除霜水加熱蒸發。而且，加熱器115的 外壁與散熱片117的端面係作成經常接觸之構造。散熱片 係由連續於上下方向之連續散熱片所構成。另外，在加 熱為、115的加熱器用電阻線係使用著Ni_c^線。 針對如以上構造之冰箱說明其動作。 在蒸發器108被冷卻之冷氣，藉風扇馬達113由冷氣吹 出口被吐出，在冷凍室106内作熱交換，由冷氣吸入口ιΐ2 回到蒸發器108。重複該循環動作將冷凍室1〇6冷卻至一定 溫度。另外，在蒸發器108被冷卻之冷氣的一部，藉由導 本紙張尺度翻巾關家標準（CNS) A4規格⑵GX297公釐） (請先閲讀背面之注意事項再填寫本頁) 、τ 18 539838 五、發明説明（16 ) 及擋板（未圖示）被送至冷藏室105與其他之溫度帶 圖不），將比等冷卻至一定溫度。 （ 而且，隨著時間的經過霜慢慢的附著於蒸發器⑽而 來，但是在因其霜在阻害冷氣的流動之前，定期的通電至 ===霜。被除霜之水介由接水盤ιΐ4滞留於蒸發盤 119，猎放熱管120的熱被蒸發。 然而’在本第7之實施例之冰箱，係在順序的連接壓缩 機、冷旋機、減壓機構與蒸發器而成之冷滚循環裝入可燃 性冷媒。而且’由於使加熱器115與散熱片ι〇8的端部接觸， 所以加上利用來自加埶哭n $的耘益 …w 15的輻射熱之除霜，藉來自加熱 器115的熱傳導也加上除霜效果提升除霜效率。盘此同時， 依對散熱片⑽的熱傳導藉放熱效果，來自加熱器u5的發 熱量不改變可以使加熱器115的玻璃管的表面溫度降低。藉 此’可以將加熱器115的表面溫度保持於可燃性冷媒的著火 溫度（例如異丁院的發火溫度為46〇。〇。從而，沒有所謂萬 一可燃性冷媒即使洩漏於庫内而著火之虞慮。 另外’設置於蒸發器108之散熱片117，由於由連續於 上下方向之連績散熱片所構成，所以藉朝散熱片i 17的熱傳 導放熱效果更高，提升除霜效率，進一步，發熱量不改變 可以降低加熱器115的表面溫度’可以保持於可燃性冷媒之 著火溫度以下。 另外，在加熱器115的加熱器用電阻線，由於使用了 Ni Cr線’所以即使在低溫使用加熱器線，亦可以防止Fe_Cr 等在470 C後所生加熱器用電阻線的脆性不產生加熱器線 539838 A7 B7 五、發明説明（π ) 的斷線。 (實施例8) 第11圖為依本發明之第8實施例之冰箱之要部截面圖。 本第8之實施例與上述第7之實施例不同之點為其次之 點。 本第8之實施例加上第7之實施例之構造，如第u圖所 示，多數散熱片121具有著沿著玻璃管加熱器丨丨5的外壁之 半圓狀之切口部122。其切口部122係對加熱器i丨5的外壁連 續接觸著。 針對如以上構造之冰箱說明其動作。 本第8之實施例之動作係加上上述第7之實施例所說明 之動作，切口部122由於連續接觸於加熱器115的外壁，所 以其接觸面積增加熱傳導效率提升。藉此，更提升除霜效 果。另外，發熱量不改變可以使加熱器115的表面溫度更 低，可以保持於可燃性冷媒之著火溫度以下。 (實施例9) 第12圖為依本發明之第9實施例之冰箱之要部縱截面 圖，第13圖為由第12圖所示B來看之箭頭正面圖，第14圖 為依本發明之第9實施例之冰箱之其他之蒸發器與玻璃管 加熱為、的部分透視圖，第15圖為由第14圖所示c來看之箭 頭正面圖。 在第12圖中，各散熱片123具有著成形於散熱片下端部 之L型之彎曲部124。其各彎曲部124係接觸於玻璃管加熱 器Π5的外壁。而且，如第13圖所示，在與彎曲部124比鄰 20 本紙張尺度適用中國國家標準（CNS) A4規格（210 X 297公釐） 五、發明説明（〗8) 之散熱片之間具有著間隙125。另外，如第14圖所示，在各 放熱片126的端部具有沿著玻璃管加熱器j 15的外壁形成半 圓狀之切口部，進一步，即使具有彎曲成L狀之彎曲部128 之構造亦可。 針對如以上構造之冰箱說明其動作。 在第12圖及第13圖中，各散熱片123由於沿著加熱器 115的外壁彎曲成L形狀，所以各散熱片123與加熱器ιΐ5的 接觸部分形成線狀，可以使熱傳導效率提升。另外，由於 在與彎曲部124的端面比鄰之散熱片具有間隙125，所以可 以將來自加熱器11 5的輻射熱傳至上方。 在第14圖及第15圖所示之構成例中，在各散熱片126 之端部具有沿著加熱器1 15的外壁形成半圓狀之切口部 127，由於更具有彎曲成L狀之彎曲部128，所以各散熱片 123與加熱裔115的接觸部分形成面狀，可以使熱傳導效率 更提升。 從而，更提升一層除霜效果，同時發熱量不變可以使 加熱為、115的表面溫度更低，可以保持於可燃性冷媒的著火 溫度以下。 (實施例10) 第16圖為依本發明之第10實施例之冰箱之蒸發器與玻 璃管加熱器的部分透視圖，第17圖為由第16圖所示D來看 之前頭正面圖。 在第16圖及第17圖中，玻璃管加熱器115的兩端部係藉 固定部129固定著。其固定部129係由切開設置於蒸發器側 本紙張尺度適财酬_準 21 539838 A7 B7 五、發明説明（19 面之側板130的縱凸緣131的-部而形成著。而且，在固定 加熱器115於固定部129的狀態，構成著各散熱片ιΐ7的端部 與加熱器115的外壁接觸。 針對如以上構造之冰箱說明其動作。 在固定加熱器115的兩端部之際，固定部129由於由切 開設置於蒸發器側面之側板13G的縱凸緣131的—部所形 成’所以加熱器115不會落下於下方。從而，裝配時也不必 要特別之固定構件可以便宜的完成，同時可以經常的以安 定之尺寸關係保持加熱器115與各散熱片117的接觸，可以 確保安定之熱傳導。其結果，除霜效果提升，同時發熱量 不宽就可以降低加熱器115的表面溫度，可以保持於可燃性 冷媒之者火溫度以下。 (實施例11) 第18圖為依本發明之第u實施例之冰箱之蒸發器與玻 璃管加熱器的部分透視圖，第19圖為由第18圖所示E來看 之箭頭正面圖。 第18圖及第19圖中，在蒸發器1〇8與玻璃管加熱器115 之間設置著遮蔽板132 ϋ，配置成使遮蔽板132的上面 與各散熱片117之下端133接觸。遮蔽板132的兩端134以斂 合於兩端散熱片135等一體的被安裝著。 針對如以上構造之冰箱說明其動作。 加熱器115被通電後，加熱器115之發生之熱傳至遮蔽 板132。由於遮蔽板132的上面與各散熱片117的下端133接 觸著所以可以’丨由遮敝板132將加熱器115的熱放熱至散 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公楚） 22 (請先閲讀背面之注意事項再填窝本頁) 訂| 發明説明（20 ) 熱片117。從而，發熱量不改變可以將加熱器115的表面溫 度保持於可燃性冷媒的著火溫度以下。另外，由蒸發器i 〇8 2出之之除霜水滴下至遮蔽板132。藉該遮蔽板132，防止 來自瘵發器108的除霜水滴下至直接加熱器115，可以防止 除霜水接觸於加熱器115在急激蒸發時所發生的聲音（例如 所謂gun、gun的聲音）。 (實施例12) 第20圖為依本發明之第12實施例之冰箱之蒸發器與玻 螭官加熱器的部分透視圖，第21圖為由第2〇圖所示f來看 之箭頭正面圖。 在第20圖及第21®中，各個長散熱片136具有成形於散 =片下端邛之L型之寫、曲部13 8。各彎曲部13 8接觸於玻璃 管加熱器115的外壁。各個短散熱片137設定成下端面比長 散熱片136還短。2個長散熱片136間之尺和設定成比長散 熱片136與短散熱片137間之尺寸還廣。 針對如以上構造之冰箱說明其動作。 各個長政熱片136由於沿著加熱器}丨5的外壁彎曲成乙 里所以各個長散熱片136與加熱器115之接觸部分形成線 狀可以使由加㉟裔115朝長散熱片m的熱傳導效率提 升。另外，構成蒸發器之長散熱片136及短散熱片137，由 於下方之散熱片間尺寸比上方大（a>b)，所以庫内冷氣循 ㈣朝蒸發器的著霜不偏向下部。其結果，著霜形成蒸發 為王體均- ’可以設定較長之除霜週期。藉此，可以抑制 需要除霜之消費電力量具有所謂省能源之 539838 A7The temperature is lower than the ignition temperature at which igniting is used as a flammable refrigerant, for example, the flammability A combination 'can be reduced. Radiation is proportional to the surface area of the body. Therefore, the heater is composed of a plurality of heaters. In terms of structure, the ratio of 2 is equal to 'the heat transfer to the evaporator 1G is increased due to the increased surface area, and one step is used' because the evaporator with a large amount of frost can be efficiently heated. The next step is to improve the defrost efficiency with uniform defrost and form frost-free. ^ In this way, the hair treatment device 10 and its surroundings use the radiant of the flammable refrigerant in the pipe = tube effect, and the majority of heaters 19a, state The direct heating, :: Faiyi 10 is uniformly defrosted, and the defrosting efficiency is improved to form a frost-free residue. In addition, many glass tube heaters (19a, 19b) are provided, and the operation time of each heater 19a, 19b is shortened. By this ratio: shortening, the heaters 19a, I9h dipping to the right, θ Λ * ,,, and only break-the surface temperature of 19a 19b can be more reliably suppressed: below the ignition temperature of the flammable refrigerant. Furthermore, the two glass tube heaters 19 & and the skin are made simpler and easier to assemble because of the component-body structure. It is said that the refrigerator in the first embodiment is provided with a plurality of glass tube heaters as the defrost device for defrosting the evaporator, and the temperature of each glass official heater can be reduced when it is energized. To less than the ignition temperature of the flammable refrigerant. That is, for example, defrosting can be performed at a temperature lower than the ignition temperature of a flammable refrigerant while maintaining the same defrosting ability as conventional. Therefore, for example, even in a case where the flammable refrigerant is defrosted in an environment where the flammable gas is leaked to the installation air to be defrosted, the ignition of the flammable refrigerant can be prevented, and at the same time, the cold due to the frost remaining can be prevented. (Embodiment 2) 5. Description of the invention (9) Fig. 5 is a longitudinal sectional view of a main part of a refrigerator according to a second embodiment of the present invention. This second embodiment is similar to the above! The second point is the implementation of financial similarities. In Fig. 5, most of the glass tube heaters are arranged at positions that hold the evaporator 10 facing each other. That is, a second glass tube heater 25a is provided below the evaporator 10, and a second glass tube heater 25b is provided above the evaporator 10. The heater 25b is provided near the accumulator. The operation of the refrigerator configured as described above will be described. As explained in the first embodiment, during defrosting, the liquid of the flammable refrigerant in the evaporator 10 is retained in the evaporator by its own weight! The lowermost piping 2 of 〇 is further activated by the operation of the heater 25a, and the refrigerant liquid near the lowermost piping evaporates in the piping and moves toward the upper piping of the evaporator 10. The high-temperature gas of the flammable refrigerant moving toward the upper pipe is cooled and liquefied by the pipe and the heat sink. This high-temperature gas radiates heat necessary for liquefaction toward the frost on the top of the plug 10 to perform defrosting. In addition, the liquefied refrigerant is returned to the lowermost pipe 21 again to remove the frost from the evaporator by repeating the thermosiphon phenomenon. By using the method of the evaporator 10, it is trapped in the decompressor 18, and a portion of the flammable refrigerant causes the lowermost pipe 21 to return to its original position, and the retained portion is likely to form the final defrosting position during defrosting. In this case, the defrost time of the remaining portion can be shortened by subtracting from the heater 25b provided at the upper portion of the evaporator 10. As a result, the defrosting of the evaporator and its surroundings is performed more evenly. Since 539838 is improved, there is no frost remaining due to the defrosting efficiency of the invention. Further, by using a short-time glass break tube to increase the benefits, Defrosting can be done so it is also related to energy saving. ^ As in the refrigerator according to the second embodiment of the present invention, since the positions of a plurality of glass officials are located above and below the evaporator holding position as the upper and lower sides of the evaporator ', the evaporator can be efficiently heated from the upper and lower sides. Since the calorific value of each glass tube heater can be made small, the surface temperature can be kept below the ignition temperature of the flammable refrigerant. Further, it is possible to increase the defrost efficiency by uniform defrost, so it is also related to energy saving. : In step, the frost on the pressure accumulator arranged on the upper part of the evaporator can be removed surely to form frost-free residue. Therefore, even when the defrosting is performed in an environment where the flammable refrigerant line leaks to the air where the phase-removing clothes are installed, the ignition of the flammable refrigerant can be prevented, and at the same time, it is possible to prevent the flammable refrigerant from becoming cold due to the residual frost. In addition, according to the method of the hair dryer, it is also considered that the other parts need the most defrosting time, but in this case, the second glass tube heater may be arranged near it. Furthermore, glass-breaker tube heaters may be provided separately with respect to the front-rear direction of the evaporator. In this case, since the defrost water of the evaporator 10 does not need to directly drip onto the glass tube 25a, the roof 16 may be omitted. (Embodiment 3) Fig. 6 is a longitudinal sectional view of a main part of a refrigerator according to a third embodiment of the present invention. The third embodiment is different from the above embodiments in the following points. In FIG. 6, the first glass tube heater 26a is disposed below the evaporator, and at the same time, it is disposed in the middle of the evaporator 10. The second glass tube will be heated by the frost. The paper size is ⑵0X297mm, 539838. V. Description of the invention (11) 26b 〇 Describe the operation of the refrigerator with the above structure. During the defrost, the heater 26a is energized at the same time as the heater 26b. Most of the heat is generated by the heating of the heater 26a, which is directly evaporated by heating to form radiant heat10. In addition, the air heated by the heat transferred from the surface of the glass tube of the heater 26a forms a warm updraft and moves upward along the evaporator 10. As it moves, the frost attached to evaporator 1 () and evaporator iq on the way is raised. In this way, the evaporator 10 is sequentially heated from the bottom to the top. Furthermore, the heater 26b provided in the middle portion of the bursting state 10 can heat a portion of the evaporator 10 that has a relatively late temperature rise from the upper portion. Adding or frosting In addition, in the heater 26a provided below the evaporator 10, the upward heat from the radiated heat can heat the direct evaporator 10. On the one hand, once the downward heat hits the barrel 13, the heating evaporator 10 is formed by reflection. In contrast, since the hot state 26b is disposed in the middle of the evaporator 10, the evaporator 10 can be directly heated by the vertical direction and the rear direction. Therefore, the phase removal of the evaporator can be performed uniformly very quickly, so that the surface temperature of the glass tube heater can be suppressed below the ignition temperature of the flammable refrigerant. As a result, even when the volatile refrigerant is defrosted in the environment of the defrosting device, it can prevent the flammable refrigerant from being trapped, and at the same time can prevent the residual frost from becoming cold. (Embodiment 4) Fig. 7 is a sectional view of a main part of a refrigerator according to a fourth embodiment of the present invention. The fourth embodiment differs from the above-mentioned embodiments in the following points. In Figure 7, the first glass tube heater 27a is set on the evaporator. The paper standard applies the Zhongguanjia standard (⑽) eight tons ^^ " 297 mm) 539838 A7 B7 V. Description of the invention (l2 ), On the one hand, the second glass tube heater 27b is installed in front of or behind the evaporator 10. In order to provide the heater 27b, a cutout portion 28 is provided in one of the fins of the evaporator 10. The capacity of the heater 27a arranged below the evaporator 10 is set to be larger than the capacity of the heater 27b arranged above the heater 27a. The operation of the refrigerator configured as described above will be described. When the heater 27a and the heater 27b are energized during the defrosting, the heater 27a provided below the evaporator 10 is defrosted by the lower portion of the evaporator 10. In the evaporator 10, by utilizing the effect of the thermosiphon, the portion of the evaporator that heats up later may be heated by the heater 2 7 b provided before or after the evaporator 10, and the frost attached to the evaporator 10 may be heated by Elimination of efficiency. In addition, since the heater 27a disposed below the evaporator 10 is set larger than the heater 27b disposed above the heater 27, the defrost of the evaporator 10 can be performed uniformly and quickly, so that the glass can be defrosted. The surface temperatures of the tube heaters 27a and 27b are suppressed below the ignition temperature of the flammable refrigerant. As a result, even if the flammable refrigerant leaks and is defrosted in the environment where the defrosting device is installed, it is possible to prevent the flammable refrigerant from catching fire and prevent the cold from being caused by the remaining frost. In addition, a cutout portion 28 is provided on one step of the heat sink of the evaporator 10, and the heater 27b disposed on one of the front and rear sides of the evaporator 10 is disposed in the cutout portion 28, so that the heater 27b can be provided. The resulting dead space is minimized. In addition, even if it is provided in front of or behind the evaporator 10, it is difficult for the water that dissolves the frost adhering to the evaporator 10 to reach the heater 27b. As a result, it is also 15 (please read the precautions on the back before filling this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 5. Description of the invention (丨 3) It has the action of the so-called fan 11 In this case, it is not necessary to provide a new roof for the heater 27b, which is the main reason for blocking the air path. (Embodiment 5) FIG. 8 is an enlarged view of a main part of a refrigerator according to a fifth embodiment of the present invention. The fifth embodiment differs from the above-mentioned embodiments in the following points. In Fig. 8, the temperature sensor 29 detects the surface temperature of the glass tube heater 19. The control device 3 (Hf, 0N / 0FF controls the voltage application of the heater 19. The heater 19 is provided with a heater wire 3 j. The operation of the refrigerator configured as above will be described. The power is turned on during the defrost. To the heater line 31 inside the heater 19. The temperature sensor 29 and the control device 30 ′ which detect the surface temperature of the glass tube control the voltage application of the heater 19, and the surface temperature of the heater 19 is controlled on the positive side. Defrost the ignition temperature lower than the flammable refrigerant. It is known that the flammable refrigerant is R600a (isobutane), but its ignition temperature is 460 ° C, and the surface temperature of the heater 19 is controlled at the energizing time. Defrost the flammable refrigerant at a temperature lower than the ignition temperature, for example, 45 (rc or less). Therefore, if the voltage applied to the glass tube heater is changed for any reason, or the defrosting is not performed, the detection is completed, and an air-burned state is formed. The flammable refrigerant can prevent ignition of the flammable refrigerant even if it leaks and performs defrosting in the environment where the defrosting device is installed. (Embodiment 6) Fig. 9 shows the sixth embodiment of the present invention. The enlarged view of the main part of the refrigerator in the embodiment. The sixth embodiment differs from the above embodiments in the following points. In the ninth figure, the temperature sensor 29 detects the surface temperature of the glass tube heater 9. The control device 32 is a control device for controlling the applied voltage of the heater 19. The heater 19 is provided inside the heater 19, and its operation will be described for a refrigerator having the above structure. During the defrosting, power is applied to the heating. The heater line inside the heater 19 ^. Furthermore, by using the temperature sensor 29 and the control device 3 which detect the surface temperature of the glass tube, the voltage of the heater 19 is controlled by the height, which is sure-surface controlled heating: the surface temperature of 19 is less than The ignition temperature of the flammable refrigerant is defrosted. It is known that the flammable refrigerant is R600a (isobutane), etc., but its ignition temperature is 46Gt. The surface temperature of the heater 19 is controlled to apply a voltage to keep the flammability of the flammable refrigerant less than the flammability. The defrosting temperature of the refrigerant is, for example, less than 45.0 °. Therefore, the voltage applied to the glass tube heater is changed for any reason, or the defrosting is completed without effect. It is detected that the flammable refrigerant can prevent ignition of the flammable refrigerant even if it leaks and is defrosted in the environment where the defrosting device is installed when the air-burning state is formed. Further, the control of the applied voltage level can make the heating The temperature change of the device wire is small, and because it can prevent the disconnection, it can prevent ignition due to the fire that occurs when the disconnection occurs. (Embodiment 7) FIG. 10 is a view showing the seventh embodiment of the present invention. Sectional view of the main part of the refrigerator. In Fig. 10, the refrigerator body 101 includes: an outer box 102, an inner box 103, and a foamed rigid body which is filled with foam between the outer box 102 and the inner box 103. Polyurethane foam thermal insulation material 104. Refrigerator compartment 105 and freezer compartment 106 are demarcation walls 17 This paper size is applicable to Chinese National Standard (CNS) A4 specifications (210X297 mm) 539838 A7 B7 15 Tube 5. Description of the invention 107 are separated. The hair iron 108 is mounted on the back of the freezer. The polystyrene foam body is placed in front of the evaporator 1 () 8, which stores the evaporation and heat insulation room 108 and cold / east room 1G6. On the outside of the polyfoam foam body ⑽, a cosmetic plate 11 of a 7¼ month opening is installed. An air-conditioner outlet 111 is integrally formed in the cosmetic board. A cold air inlet 112 is provided between the lower end surface of the makeup plate 110 and the inner box 103. The fan motor 113 for cold-air stirring is installed in a section of the cosmetic plate 110. The fan motor 113 discharges the cold air cooled in the evaporator 朝 toward the cold beam chamber 106 and other temperature zones (not shown). The defrost receiving tray 114 is placed below the hair dryer 108. The upper opening portion of the water receiving tray 114 is opened slightly from the lower shape of the evaporator 108. The glass tube heater ΐ5 series is installed between the hair extension $ 1G8 and the drip tray 114. The evaporation of the evaporator ⑽116 and the political heat piece ip are fixed by pressing or converging. The evaporation pan 119 is disposed below the water receiving pan 114 and the defrost water dripped on the j receiving pan 114 is retained. The exothermic tube 120 is arranged in the evaporation pan ΐ9, and the defrost water retained in the evaporation pan 119 is heated and evaporated. In addition, the outer wall of the heater 115 and the end surface of the heat sink 117 are in constant contact. The heat sink is composed of continuous heat sinks continuous in the vertical direction. In addition, Ni_c ^ wire was used for the heater resistance wire of 115 ° C. The operation of the refrigerator configured as described above will be described. The cold air cooled in the evaporator 108 is expelled from the cold air outlet by the fan motor 113, exchanges heat in the freezing compartment 106, and returns to the evaporator 108 through the cold air intake port ΐ2. This cycle is repeated to cool the freezer 10 to a certain temperature. In addition, the part of the cold air cooled by the evaporator 108 is turned over by the paper standard (CNS) A4 size ⑵ GX297 mm (please read the precautions on the back before filling this page), τ 18 539838 Fifth, the description of the invention (16) and the baffle (not shown) are sent to the refrigerating compartment 105 and other temperature zones (not shown), and the ratio is cooled to a certain temperature. (Moreover, the frost slowly adheres to the evaporator over time, but before the frost blocks the flow of cold air, it is periodically energized to === frost. The defrosted water passes through the drip tray. ιΐ4 stays in the evaporation plate 119, and the heat of the hunting and releasing heat pipe 120 is evaporated. However, in the refrigerator of the seventh embodiment, the compressor, the cold spinning machine, the decompression mechanism and the evaporator are connected in order to cool the refrigerator. The flammable refrigerant is charged in a rolling cycle. Furthermore, since the heater 115 is brought into contact with the end of the heat sink ι〇8, the defrosting using radiant heat from 埶 $ n $… w 15 is borrowed from The heat conduction of the heater 115 also adds the defrosting effect to improve the defrosting efficiency. At the same time, depending on the heat conduction effect on the heat sink ⑽, the heat generation from the heater u5 can not change the surface of the glass tube of the heater 115 The temperature is lowered. By this, the surface temperature of the heater 115 can be maintained at the ignition temperature of the flammable refrigerant (for example, the ignition temperature of Isotinin is 46 °.) Therefore, there is no such thing as a flammable refrigerant even if it leaks into the room. While on fire In addition, 'the heat sink 117 provided in the evaporator 108 is composed of continuous heat sinks which are continuous in the up-down direction, so the heat conduction effect to the heat sink i 17 is higher, and the defrosting efficiency is further improved. The surface temperature of the heater 115 can be reduced without changing the amount of heat. 'It can be kept below the ignition temperature of the flammable refrigerant. In addition, the heater resistance wire for the heater 115 uses a Ni Cr wire, so the heater can be used even at low temperatures. It can also prevent the brittleness of the heater resistance wire produced by Fe_Cr and other after 470 C from generating heater wire 539838 A7 B7. 5. Disclosure of the invention (π) (Embodiment 8) Fig. 11 is according to the present invention. The sectional view of the main part of the refrigerator of the eighth embodiment. The difference between the eighth embodiment and the seventh embodiment is the second point. The eighth embodiment plus the seventh embodiment has a structure, As shown in FIG. U, most of the fins 121 have a semi-circular cut-out portion 122 along the outer wall of the glass tube heater 5. The cut-out portion 122 is in continuous contact with the outer wall of the heater i 5. As The refrigerator with the above structure will explain its operation. The operation of the eighth embodiment is the operation described in the seventh embodiment. Since the cutout portion 122 continuously contacts the outer wall of the heater 115, its contact area increases the heat conduction efficiency. Improve. This will further improve the defrosting effect. In addition, the surface temperature of the heater 115 can be lowered without changing the amount of heat, and can be kept below the ignition temperature of the flammable refrigerant. (Embodiment 9) Figure 12 is based on this A longitudinal sectional view of a main part of a refrigerator according to a ninth embodiment of the invention, FIG. 13 is a front view of an arrow viewed from B shown in FIG. 12, and FIG. 14 is another view of the refrigerator according to the ninth embodiment of the present invention. Partial perspective view of the evaporator and the glass tube heating, Fig. 15 is a front view of the arrow viewed from c in Fig. 14. In Fig. 12, each of the fins 123 has an L-shaped bent portion 124 formed on a lower end portion of the fins. Each curved portion 124 is in contact with the outer wall of the glass tube heater Π5. Moreover, as shown in FIG. 13, there are between the heat sinks of 20 paper sizes adjacent to the curved portion 124 that are in accordance with the Chinese National Standard (CNS) A4 (210 X 297 mm). 5. Description of the invention (〖8) Gap 125. In addition, as shown in FIG. 14, each heat-radiating sheet 126 has a semi-circular cut-out portion formed along the outer wall of the glass tube heater j 15 at the end portion, and further has a structure having a curved portion 128 bent into an L shape. can. The operation of the refrigerator configured as described above will be described. In Figs. 12 and 13, since the fins 123 are bent into an L shape along the outer wall of the heater 115, the contact portions of the fins 123 and the heater 5 are formed in a linear shape, which can improve the heat conduction efficiency. In addition, since the radiating fin adjacent to the end face of the curved portion 124 has a gap 125, it is possible to transmit radiant heat from the heater 115 to the upper side. In the configuration examples shown in FIGS. 14 and 15, the end portion of each of the fins 126 has a notched portion 127 formed in a semicircular shape along the outer wall of the heater 115, and has a bent portion bent into an L shape. 128, so the contact portion of each heat sink 123 and the heater 115 is formed in a plane shape, which can further improve the heat conduction efficiency. As a result, the defrosting effect is further improved, and the same heating value can make the surface temperature of 115 ° C lower, which can be kept below the ignition temperature of the flammable refrigerant. (Embodiment 10) Fig. 16 is a partial perspective view of an evaporator and a glass tube heater of a refrigerator according to a tenth embodiment of the present invention, and Fig. 17 is a front view of the front head viewed from D shown in Fig. 16. In Figs. 16 and 17, both ends of the glass tube heater 115 are fixed by fixing portions 129. The fixing portion 129 is formed by cutting the-portion of the paper on the evaporator side, and the paper size is _21 21 539838 A7 B7 V. Description of the invention (the-portion of the vertical flange 131 of the side plate 130 on the 19 side. The heater 115 is in the state of the fixing portion 129, and the end portion of each of the radiating fins 7 is in contact with the outer wall of the heater 115. The operation of the refrigerator having the above structure will be described. Since the portion 129 is formed by a portion of the vertical flange 131 that is cut and opened on the side plate 13G on the side of the evaporator, the heater 115 does not fall below. Therefore, it is not necessary to install a special fixing member at the time of assembly. At the same time, the contact between the heater 115 and the fins 117 can be kept in a stable dimensional relationship, which can ensure stable heat conduction. As a result, the defrost effect is improved, and the surface temperature of the heater 115 can be reduced while the heat generation is not wide. It can be kept below the fire temperature of the flammable refrigerant. (Embodiment 11) Fig. 18 is a part of the evaporator and glass tube heater of the refrigerator according to the uth embodiment of the present invention. View, Fig. 19 is a front view of the arrow viewed from E shown in Fig. 18. In Figs. 18 and 19, a shielding plate 132 is provided between the evaporator 108 and the glass tube heater 115, It is arranged such that the upper surface of the shielding plate 132 is in contact with the lower end 133 of each heat sink 117. The two ends 134 of the shield plate 132 are integrally fitted with the heat sink 135 and the like converged to both ends. The operation of the refrigerator having the above structure will be described After the heater 115 is energized, the heat generated by the heater 115 is transmitted to the shielding plate 132. Since the upper surface of the shielding plate 132 is in contact with the lower end 133 of each heat sink 117, the heater 115 can be heated by the shielding plate 132 The heat release to paper size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297). 22 (Please read the precautions on the back before filling in this page) Order | Invention description (20) Hot film 117. Therefore, The surface temperature of the heater 115 can be maintained below the ignition temperature of the flammable refrigerant without changing the amount of heat. In addition, the defrost from the evaporator i 08 drops to the shielding plate 132. The shielding plate 132 prevents the The defrost from the hair dryer 108 drops down to By connecting the heater 115, it is possible to prevent the defrosting water from contacting the sound (such as the sound of a gun or a gun) generated when the heater 115 evaporates rapidly. (Embodiment 12) Figure 20 is a twelfth embodiment according to the present invention. Partial perspective view of the evaporator and the glass heater of the refrigerator, Fig. 21 is a front view of the arrow viewed from f shown in Fig. 20. In Figs. 20 and 21, each of the long fins 136 It has an L-shaped writing and curved portion 138 formed on the lower end of the sheet. Each curved portion 138 is in contact with the outer wall of the glass tube heater 115. Each of the short fins 137 is set so that its lower end face is shorter than the long fins 136. The length and the length of the two long fins 136 are set to be wider than the size between the long fins 136 and the short fins 137. The operation of the refrigerator configured as described above will be described. Each of the Changzheng heat fins 136 is bent along the outer wall of the heater} 5, so the contact portion of each long heat sink 136 and the heater 115 is formed in a linear shape, which can make the heat transfer efficiency from the Canadian 115 to the long heat sink m Promotion. In addition, since the long fins 136 and the short fins 137 constituting the evaporator have a larger size between the lower fins than the upper (a &b; b), the cold air in the room is not deflected toward the evaporator. As a result, the frost formation and evaporation are equal to the royal body ', and a longer defrost cycle can be set. In this way, the amount of power consumption that needs to be defrosted can be suppressed.
(實施例13) 第22圖為為依本發明之第13實施例之冰箱之蒸發器與 請 先 閲 讀 背 之 注 意 事 項 再 ψ 本 頁 玻璃管加熱器的部A透視圖’第23圖為由第22圖所示〇來 :之箭頭正面圖，第24圖為第22圖所示冰箱之玻璃管加熱 為的擴大部分面圖。 /由第22圖至第24圖中，雙重構造之玻璃管加熱器139 係由内管140與及外管141所構成。對於内管14〇的外壁隔著 &之間隔配置外官141，在内管14〇的内部具有著電阻線 加熱器143。而且，兩管的兩端係藉罩蓋維持一定尺寸液體 被固定著。在此，加熱器139的外管與141與各散熱片117 的下端係作成經常接觸之構造。 針對如以上構造之冰箱說明其動作。(Embodiment 13) FIG. 22 is an evaporator of a refrigerator according to a thirteenth embodiment of the present invention, and please read the precautions on the back before ψ. This is a perspective view of part A of the glass tube heater on this page. Figure 22 shows the front view of the arrow: Figure 24 is an enlarged partial view of the glass tube of the refrigerator shown in Figure 22. / From Figs. 22 to 24, the double-structured glass tube heater 139 is composed of an inner tube 140 and an outer tube 141. The outer tube 141 is arranged on the outer wall of the inner tube 14 with an & interval, and a resistance wire heater 143 is provided inside the inner tube 14o. Moreover, both ends of the two tubes are fixed by a cover to maintain a certain size of the liquid. Here, the outer tube 141 of the heater 139 and the lower end of each of the fins 117 are often in contact with each other. The operation of the refrigerator configured as described above will be described.
Wk 加熱器139被通電後，由電阻線加熱器143所發之熱， 由内管140介由外管141由外管141的表面發出。此時，藉内 管140與外管Ml的空間之斷熱作用，外管141的表面溫度比 内管140之該等還低。從而，除霜效果提升，同時發熱量不 改變可以降低加熱器115的表面溫度，可以保持於可燃性冷 媒之著或溫度以下。另外，由於將加熱器139的端面以一體 成形之罩蓋142固定，所以可以正確的確保雙重玻璃管内之 間隙尺寸，可以使玻璃管表面溫度的不均較小同時變成容 易組裝。 (實施例14) 第25圖為依本發明之第14之實施例之冰箱之冷康循環 圖，第26圖為依本發明之第14之實施例之冰箱之玻璃管加 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 539838 A7 ______B7_ 五、發明説明（22 ) 熱器的部分截面圖。 在第25圖中，冷凍循環2〇 1係順序連接壓縮機、冷凝器 203、乾燥機204、減壓機構之毛細軟管2〇5、蒸發器206所 構成。在内部封入可燃性冷媒。除霜裝置之玻璃管加熱器 207係定期的除去附著於配置於蒸發器2〇6的下方之蒸發器 206之霜。 在第26圖中，密封構件2〇8具有以橡膠一體成形之内管 支撐部209與外管支撐部21〇，分別支撐著由多重構造之玻 璃管所形成之内管211的端部與外管212的端部。加熱器線 213係由鐵_鉻與鎳_鉻等之材料所形成。在内管2ΐι的内 部，在内管211的内部對於内管211的内壁隔著一定間隙配 置著。連接部214係敛合著加熱器線213與引線215。而且， 引線215由密封構件2〇8的側面下方或底面被導出至外部。 另外，第27圖為依本發明之第14之實施例之冰箱之其 他之玻璃管加熱器之部分截面圖。 在第27圖中，密封構件216具有以橡膠構件一體成形之 内笞支撐部217與外管支撐部218。内管支撐部217係在内管 219與搭接部221，僅長度“荅接支撐著内管219。外管支撐 部218係在内管220與搭接部222，僅長度4搭接支撐著内管 220。而且，搭接部222的先端面224(1面）係位置於比搭接 部221的先端面（H面）還外側。 針對如以上構造之冰箱說明其動作。 為了定期的除去附著於蒸發器206的霜，玻璃管加熱器 207的加熱線213被通電後，其熱由内管211通過外管212到 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公董） 、發明説明（23 ) 達上方之蒸發器206除去附著於該處之霜。在此，加熱器2〇7 係由多重構造之玻璃管所構成著。加熱器2〇7的發熱量係與 習知同樣’:面藉内管211與外管212的空間之空氣斷熱效 果，-面外管212的表面溫度可以抑制於可燃性冷媒的著火 溫度（例如，異丁烧為460°C)。 而且，由於在玻璃管的端面設置了密封構件2〇8，所以 可以確實的決定雙重構造之玻璃管的位置，可以正確的確 保玻璃管的間隙尺寸，可以使玻璃管的表面溫度之不均較 小。而且’更在密封構件2〇8藉一體的設置之内管支撐部2⑽ 與外管支撐部21G,可以抑制朝玻璃管内之外氣的流入，萬 一即使可燃性冷媒洩漏亦可以抑制著火的可能性。 另外，密封構件216由於-體的形成内管支揮部217與 外管支撐部218’所以可以抑制成本於最便宜，同時可以使 f配時之尺寸不均於最小。進一步，在内管支撐部217與外 s支撐部218 ’由於在玻璃管的外壁端部分別形成搭接部 221及222,所以可以確實的抑制朝玻璃管内的外氣之流入。 另外，由於將搭接部222的先端面224(1面）做成位”置於 比搭接部221的先端面223(H面）還外側，所以由内管219所 放射之輻射熱很難受外管支撐部218所妨害。藉此，可以有 效率的除霜’同時朝密封構件216的外管細的插入變得容 易k外了裝配性。 ^又，在本第14之實施例，係將密封構件做成橡膠製， 仁右具有耐熱性之材料的話則可以得到同樣之效果。 (實施例15) 539838 五、發明説明（24 ) 第28圖為依本發明之第15實施例之冰箱之玻璃管加熱 器的部分截面圖。 在第28圖中，密封構件225具有著以橡膠構件一體成形 之内管支撐部226與外管支樓部227。内管支撐部226係在内 管228與搭接部230,僅長度e搭接支撐著内管228。外管支 撐部227係在外管229與搭接部231，僅相同長度〇搭接支撐 著外官229。而且，搭接部231的先端面233(J面）係位置於 與搭接部230的先端面232同一平面（J面）。而且，内管228 與外管229係做成同一尺寸，玻璃管端面係位置於同一平面 (K 面）。 針對如以上構造之冰箱說明其動作。 玻璃官加熱器係由内管228與外管229所形成，做成使 密封構件225的外管支撐部的搭接部先端面233與内管支撐 部的搭接部先端面232位置於同一平面狀。也就是，由於在 同一搭接帶密封内管支撐部226與外管支撐部227，所以各 官也都能確保充分之搭接帶e，玻璃管内外之密封性變良 好。從而，由於可以確實的抑制朝玻璃管内之外氣的流入， 所以萬一即使可燃性冷媒洩漏亦可以抑制著火的可能性。 另夕卜，由於内管228與外管229係做成同—尺寸，所以玻璃 管的製造過程可以簡略化，玻璃管的製作也變成容易。 (實施例16) 第29圖為依本發明之第16實施例之冰箱之玻璃管加熱 器之部分截面圖。 第29圖中，密封構件234係由多數支撐構件所構成。也 (請先閱讀背面之注意事項再填寫本頁) •、可· 4After the Wk heater 139 is energized, the heat generated by the resistance wire heater 143 is emitted from the inner pipe 140 through the outer pipe 141 and the surface of the outer pipe 141. At this time, the surface temperature of the outer tube 141 is lower than that of the inner tube 140 due to the heat insulation effect of the space between the inner tube 140 and the outer tube M1. As a result, the defrosting effect is improved, and at the same time, the surface temperature of the heater 115 is reduced without changing the amount of heat generation, and it can be kept below the temperature of the flammable refrigerant or below. In addition, since the end surface of the heater 139 is fixed by the integrally formed cover 142, the gap size in the double glass tube can be accurately ensured, the unevenness of the surface temperature of the glass tube can be made small, and it can be easily assembled. (Embodiment 14) FIG. 25 is a cold cycle diagram of a refrigerator according to a fourteenth embodiment of the present invention, and FIG. 26 is a glass tube of the refrigerator according to the fourteenth embodiment of the present invention plus the paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) 539838 A7 ______B7_ 5. Description of the invention (22) Partial sectional view of the heater. In Fig. 25, the refrigeration cycle 201 is constituted by sequentially connecting a compressor, a condenser 203, a dryer 204, a capillary hose 205 of a pressure reducing mechanism, and an evaporator 206. Flammable refrigerant is sealed inside. The glass tube heater 207 of the defrost device periodically removes frost attached to the evaporator 206 disposed below the evaporator 206. In FIG. 26, the sealing member 208 has an inner tube supporting portion 209 and an outer tube supporting portion 21 formed integrally with rubber, and supports the end portion and the outer portion of the inner tube 211 formed by a glass tube having multiple structures, respectively. The end of the tube 212. The heater wire 213 is made of a material such as iron chrome and nickel chrome. The inner portion of the inner tube 211 is arranged inside the inner tube 211 with a certain gap from the inner wall of the inner tube 211. The connecting portion 214 is connected to the heater wire 213 and the lead 215. In addition, the lead 215 is led out to the outside from below the side surface or the bottom surface of the sealing member 208. Fig. 27 is a partial sectional view of another glass tube heater of a refrigerator according to a fourteenth embodiment of the present invention. In Fig. 27, the seal member 216 has an inner tube support portion 217 and an outer tube support portion 218 integrally formed with a rubber member. The inner tube support portion 217 is connected to the inner tube 219 and the overlap portion 221, and supports the inner tube 219 only in length. The outer tube support portion 218 is connected to the inner tube 220 and the overlap portion 222, and only overlaps and supports the length 4. Inner tube 220. Moreover, the front end surface 224 (1 side) of the overlapping portion 222 is positioned outside the front end surface (H side) of the overlapping portion 221. The operation of the refrigerator configured as described above will be described. For periodic removal After the frost adhered to the evaporator 206 and the heating wire 213 of the glass tube heater 207 is energized, the heat from the inner tube 211 through the outer tube 212 to this paper scale applies the Chinese National Standard (CNS) A4 specification (210X297). Description of the Invention (23) The evaporator 206 reaching above removes the frost attached to it. Here, the heater 207 is composed of a glass tube with multiple structures. The heating value of the heater 207 is conventional. Similarly ': the surface heat insulation effect of the space between the inner tube 211 and the outer tube 212,-the surface temperature of the outer tube 212 can be suppressed to the ignition temperature of the flammable refrigerant (for example, isobutylene is 460 ° C). Since the sealing member 20 is provided on the end face of the glass tube, it can be confirmed The position of the glass tube that determines the dual structure can correctly ensure the gap size of the glass tube, and can make the uneven temperature of the surface of the glass tube smaller. Moreover, the sealing member 208 can be supported by the integrated installation within the tube. The part 2⑽ and the outer tube support part 21G can suppress the inflow of air into and out of the glass tube, and in the event of a flammable refrigerant leakage, the possibility of fire can be suppressed. In addition, the sealing member 216 is formed by the inner body of the inner tube. 217 and the outer tube support portion 218 ', so that the cost can be suppressed to the cheapest, and the size unevenness at the time of f can be minimized. Furthermore, the inner tube support portion 217 and the outer s support portion 218' are on the outer wall of the glass tube. The ends are respectively formed with overlapping portions 221 and 222, so that the inflow of outside air into the glass tube can be reliably suppressed. In addition, since the front end surface 224 (1 side) of the overlapping portion 222 is formed in a position "than the overlapping" The front end surface 223 (H surface) of the portion 221 is also outside, so the radiant heat radiated from the inner tube 219 is hardly disturbed by the outer tube support portion 218. Thereby, efficient defrosting can be achieved, and at the same time, thin insertion into the outer tube of the sealing member 216 becomes easy and the assemblability is improved. ^ In the fourteenth embodiment, the sealing member is made of rubber. If the material has heat resistance, the same effect can be obtained. (Embodiment 15) 539838 V. Description of the invention (24) Fig. 28 is a partial sectional view of a glass tube heater of a refrigerator according to a fifteenth embodiment of the present invention. In Fig. 28, the sealing member 225 has an inner pipe supporting portion 226 and an outer pipe supporting portion 227 integrally formed with a rubber member. The inner tube supporting portion 226 is connected to the inner tube 228 and the overlap portion 230, and only the length e overlaps and supports the inner tube 228. The outer tube support portion 227 is connected to the outer tube 229 and the overlap portion 231, and only overlaps and supports the external officer 229 with the same length. Further, the leading end surface 233 (J-plane) of the overlapping portion 231 is positioned on the same plane (J-plane) as the leading end surface 232 of the overlapping portion 230. In addition, the inner tube 228 and the outer tube 229 are of the same size, and the end faces of the glass tube are located on the same plane (K-plane). The operation of the refrigerator configured as described above will be described. The glass official heater is formed by the inner tube 228 and the outer tube 229, so that the overlapping end face 233 of the outer tube supporting portion of the sealing member 225 and the overlapping end face 232 of the inner tube supporting portion are positioned on the same plane. shape. That is, since the inner tube support portion 226 and the outer tube support portion 227 are sealed in the same overlap band, each officer can also ensure a sufficient overlap band e, and the sealability inside and outside the glass tube is improved. Therefore, since the inflow of air into and out of the glass tube can be reliably suppressed, even if a flammable refrigerant leaks, the possibility of ignition can be suppressed. In addition, since the inner tube 228 and the outer tube 229 are made of the same size, the manufacturing process of the glass tube can be simplified and the manufacturing of the glass tube becomes easy. (Embodiment 16) Figure 29 is a partial sectional view of a glass tube heater of a refrigerator according to a sixteenth embodiment of the present invention. In Fig. 29, the sealing member 234 is composed of a plurality of supporting members. Also (Please read the notes on the back before filling out this page) • 、 可 · 4
539838 A7 B7 五、發明説明（25 ) 就是，密封構件234係將内部支撐構件235與外部支撐構件 236作為別體構造。設置於内管支撐構件235之内管支撐構 件237係支撐著内管239的外壁端部。設置於外管支撐構件 236之外管支撐構件238係支撐著外管240的外壁端部。另 外，外管支撐構件236係壓接嵌合於内管支撐構件235的外 郭的一部。而且，内管支撐構件235係由耐熱性較高之材料 所成形，外管支撐構件236係由比内管支撐構件235耐熱性 還低之材料所成形。 針對如以上構造之冰箱說明其動作。 在密封構件234中，由於將内管支撐構件235與外管支 撐構件236作為別體構造，所以在製造時可以做不同材料的 組合，增加密封構件234的設計自由度。 另外，内管支撐構件235係由耐熱性較高之材料所成 形，外管支撐構件236由於由比内管支撐構件235耐熱性較 低之材料所成形，所以提高了密封構件的信賴性，同時減 少成本變得較高之耐熱性較高之材料的使用，形成可以降 低密封構件的成本。 (實施例17) 第30圖為依本發明之第17實施例之冰箱之玻璃管加熱 器的部分截面圖。 在第30圖中，密封構件241係由橡膠構件一體的成形 著，具有内管支撐部242與外管支撐部243。内管支撐部242 係在内管244與搭接部246僅長度f搭接，支撐著内管244。 外管支撐部243係在内管245與搭接部247僅長度g搭接，支 28 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 五、發明説明（26 ) 樓著外s 245。而|，外官支標部243的搭接部247的先端面 置於比内管支標部⑷之搭接部㈣的先端 面248(L面）還内側。 針對如以上構造之冰箱說明其動作。 玻璃官加熱為由於將外管支標部243的搭接部先端面 U成位置於内官支擇部242的搭接部先端面⑽的内 側丄所以可以充分的確保外管245的搭接帶g，玻璃管内外 的饴封性變成良好。從而，由於可以確實的抑制朝玻璃管 的外氣的流人’所以即使萬_可燃性冷料漏亦可以抑制 著火的可能性。 進一步，由於内管支撐部242的搭接部246之搭接帶【 可以比較小，所以内管支撐部242可以較少受來自加熱器線 213的輻射之熱影響，玻璃管通電時藉輻射熱可以抑制内管 支撐部的溫度上升。從而，沒有必要將密封構件241的材料 作為特別耐熱等級較高者，可以謀求成本的降低。 <產業上利用的可能性> 本發明之冰箱係設置多數個玻璃管加熱器作為封入可 燃性冷媒之冷凍循環之蒸發器之除霜裝置。而且，玻璃管 加熱器係控制通電時間或施加電壓，使其小於可燃性冷1 之發火溫度。藉此，可以防止可燃性冷媒的發火，更可以 防止因殘霜而不冷。另外，使玻璃管加熱器與蒸發器的散 熱片接觸降低玻璃管加熱器的表面溫度。另外，將玻璃总 加熱器作成多重構造，在端面設置密封構件。藉此，例如即 使在可燃性冷媒)¾漏之環境下進行除霜亦可以防止著火。 539838 A7 B7 五、發明説明（27 ) 元件標號對照 10…蒸發器 19、19a、19b…玻璃離管加熱器 25a、26a、27a…第1之玻璃管加熱器 25b、26b、27b…第2之玻璃管加熱器 101…冰箱 108…蒸發器 115…玻璃管加熱器 117、121、123、126···散熱片 122、127···切口部 124、128、138···彎曲部 13 0…側板 13 2…遮蔽板 136…長散熱片 137…短散熱片 139…雙重構造之玻璃管加熱器 142…罩蓋 14 3…電阻線加熱器 2 01…冷;東循環 202…壓縮機 2 0 3…冷凝機 205…毛細軟管 206…蒸發器 30 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 539838 A7 B7 密封構件 内管支撐部 外管支撐部 内管 外管 247···搭接部 249…先端面 (請先閲讀背面之注意事項再«/寫本頁)539838 A7 B7 5. The description of the invention (25) is that the sealing member 234 has the internal support member 235 and the external support member 236 as separate structures. An inner tube supporting member 237 provided on the inner tube supporting member 235 supports an outer wall end portion of the inner tube 239. The outer tube support member 238 provided on the outer tube support member 236 supports an outer wall end portion of the outer tube 240. The outer tube support member 236 is a part of the outer tube which is press-fitted to the inner tube support member 235. Further, the inner tube supporting member 235 is formed of a material having higher heat resistance, and the outer tube supporting member 236 is formed of a material having lower heat resistance than the inner tube supporting member 235. The operation of the refrigerator configured as described above will be described. In the sealing member 234, since the inner tube supporting member 235 and the outer tube supporting member 236 are constructed as separate bodies, a combination of different materials can be made at the time of manufacturing, and the design freedom of the sealing member 234 is increased. In addition, the inner tube supporting member 235 is formed of a material having higher heat resistance, and the outer tube supporting member 236 is formed of a material having lower heat resistance than the inner tube supporting member 235, thereby improving the reliability of the sealing member and reducing The use of a material with higher heat resistance, which becomes more expensive, can reduce the cost of the sealing member. (Embodiment 17) Figure 30 is a partial sectional view of a glass tube heater of a refrigerator according to a seventeenth embodiment of the present invention. In Fig. 30, the seal member 241 is integrally formed of a rubber member, and includes an inner tube support portion 242 and an outer tube support portion 243. The inner tube supporting portion 242 is overlapped with the inner tube 244 and the overlapping portion 246 only by the length f, and supports the inner tube 244. The outer tube supporting part 243 is overlapped with the inner tube 245 and the overlapping part 247 only by the length g, and the support 28 (please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X297 (Mm) V. Description of the invention (26) Outside the building s 245. And, the leading end surface of the overlapping portion 247 of the outer official support portion 243 is placed further inside than the leading end surface 248 (L surface) of the joining portion ㈣ of the inner tube supporting portion ⑷. The operation of the refrigerator configured as described above will be described. The glass official heating is because the front end U of the overlapping portion of the outer tube supporting portion 243 is positioned inside the front end ⑽ of the overlapping portion of the inner official selecting portion 242, so that the overlapping band of the outer tube 245 can be sufficiently ensured. g. The sealability inside and outside the glass tube becomes good. As a result, it is possible to reliably suppress the inflow of external air toward the glass tube, so that the possibility of catching fire can be suppressed even if a flammable cold material leaks. Further, since the overlap band of the overlap portion 246 of the inner tube support portion 242 can be relatively small, the inner tube support portion 242 can be less affected by the radiant heat from the heater wire 213. When the glass tube is energized, the radiant heat can be used. The temperature rise of the inner tube support is suppressed. Therefore, it is not necessary to use the material of the sealing member 241 as a particularly high heat-resistant grade, and cost reduction can be achieved. < Possibility of industrial utilization > The refrigerator of the present invention is a defrosting device provided with a plurality of glass tube heaters as an evaporator to seal a refrigeration cycle of a flammable refrigerant. In addition, the glass tube heater controls the energization time or voltage to make it lower than the ignition temperature of flammable cold1. This can prevent the ignition of the flammable refrigerant, and can prevent the cold from being caused by the residual frost. In addition, bringing the glass tube heater into contact with the heat sink of the evaporator lowers the surface temperature of the glass tube heater. In addition, the glass main heater has a multiple structure, and a sealing member is provided on the end surface. This makes it possible to prevent fire even if defrosting is performed in an environment where the flammable refrigerant is leaking. 539838 A7 B7 V. Description of the invention (27) Component reference 10 ... Evaporator 19, 19a, 19b ... Glass off-tube heaters 25a, 26a, 27a ... The first glass tube heaters 25b, 26b, 27b ... The second one Glass tube heater 101 ... Refrigerator 108 ... Evaporator 115 ... Glass tube heater 117, 121, 123, 126 ... Heat sinks 122, 127 ... Cutouts 124, 128, 138 ... Bend 13 13 ... Side plate 13 2 ... Shielding plate 136 ... Long fins 137 ... Short fins 139 ... Dual structure glass tube heater 142 ... Cover cover 14 3 ... Resistance line heater 2 01 ... Cold; East cycle 202 ... Compressor 2 0 3 ... condenser 205 ... capillary hose 206 ... evaporator 30 (please read the precautions on the back before filling this page) This paper size is applicable to Chinese National Standard (CNS) A4 (210X297 mm) 539838 A7 B7 inner tube of sealing member Supporting part Outer tube Supporting part Inner tube outer tube 247 ... Overlap part 249 ... End surface (please read the precautions on the back first before writing this page)
五、發明説明（28 ) 207…玻璃管加熱器 208 ^ 216 ^ 225 ^ 234 ^ 241- 209 ^ 217 ^ 226 ^ 237 ^ 242· 210、218、227、238、243· 211 > 219 ^ 228 ^ 239 > 244· 212 ' 220 、 229 、 240 、 245. 22卜 222 > 230 > 231 、 246 223 ^ 224 ^ 232 ^ 233 ^ 248 235…内管支撐構件 236…外管支撐構件 3 〇 1…冷;東循環 302…壓縮機 3 0 3…冷凝機 305…檢壓機構 306…蒸發器 307…除霜裝置 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 31V. Description of the invention (28) 207 ... Glass tube heater 208 ^ 216 ^ 225 ^ 234 ^ 241- 209 ^ 217 ^ 226 ^ 237 ^ 242 210, 218, 227, 238, 243 211 > 219 ^ 228 ^ 239 > 244 · 212 '220, 229, 240, 245. 22, 222 > 230 > 231, 246 223 ^ 224 ^ 232 ^ 233 ^ 248 235 ... Inner pipe support member 236 ... Outer pipe support member 3 〇1 … Cold; east cycle 302… compressor 3 0 3… condenser 305… pressure detecting mechanism 306… evaporator 307… defrosting device This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) 31