502557 A7 B7 五、發明説明（1) 本發明係有關於一種電磁感應加熱裝置，尤其是有關 於一種多重輸出控制用之共振式感應烹調裝置，該烹調裝 置能藉一反相器電路，Μ去除掉相臨加熱板之間所產生的 干擾性雜訊，該反相器電路具有複數個並聯連接的反相器 模組，並且經由其相對應反相器模組的一分時方式之控制 *對複數個加熱板進行加熱，該烹調裝置同時使用軟性切 換，Μ降低切換損失。 在習用的感應烹調裝置中，複數個反相器電路被並聯 偶合到輸入電源端，Μ操作複數個工作線圏。 參閱圖一，習用感應烹調裝置的電路示意圖。 特別的是，如圖一所示的該習用感應烹調裝置，包含 有一電源供應器。該習用感應烹調裝置還包含有複數個整 流器、複數個輸入濾波器、複數個反相器電路，其中複數 個整流器2-1，2-2，...，2-η，分別對電源供應器1所供 應的交流電，進行整流處理；複數個輸入濾波器分別對整 流器所輸出的整流電，進行平滑處理，而每一輸入濾波器 分別包含有一抗流線圈（Choke Co i 1 ) L1 * L2，· · ·，Ln， 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) M及一電容Cal，Ca2，...，Can ;複數個反相器電路3-1 ，3-23-n，分別對輸入濾波器的輸出平滑電源， 進行切換處理。 舉例來說*反相器電路3-n包含有二切換電晶體Qan與 Qbn、二個二極體Dan與Dbn、一共振電容Cbn，該二切換電 晶體Qain與Qbn依據傳送到其基極，由控制器（圖中未顯示） 所提供的一切換控制信號，進行一切換操作；該二個二極 〜3〜 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 502557 A7 B7 五、發明説明（2) 體Dan與Dbn分別並聯連接到電晶體Qan與Qb]ri ;該共振電容502557 A7 B7 V. Description of the invention (1) The present invention relates to an electromagnetic induction heating device, and more particularly to a resonance-type induction cooking device for multiple output control. The cooking device can be removed by an inverter circuit Disturbing noise generated between adjacent heating plates, the inverter circuit has a plurality of inverter modules connected in parallel, and is controlled by a time-sharing method corresponding to the inverter modules * A plurality of heating plates are heated, and the cooking device uses soft switching at the same time, thereby reducing switching losses. In a conventional induction cooking device, a plurality of inverter circuits are coupled in parallel to an input power source terminal, and M operates a plurality of working lines 圏. Refer to FIG. 1 for a schematic circuit diagram of a conventional induction cooking device. In particular, the conventional induction cooking device shown in FIG. 1 includes a power supply. The conventional induction cooking device further includes a plurality of rectifiers, a plurality of input filters, and a plurality of inverter circuits, wherein the plurality of rectifiers 2-1, 2-2, ..., 2-η are respectively provided to the power supply. The AC power supplied by 1 is rectified; a plurality of input filters respectively smooth the rectified power output by the rectifier, and each input filter includes a choke coil (Choke Co i 1) L1 * L2, · · ·, Ln, printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) M and a capacitor Cal, Ca2, ..., Can; multiple inverter circuits 3 -1 and 3-23-n, respectively, perform switching processing on the output smoothing power of the input filter. For example, * inverter circuit 3-n includes two switching transistors Qan and Qbn, two diodes Dan and Dbn, and a resonant capacitor Cbn. The two switching transistors Qain and Qbn are transmitted to their bases, A switching control signal provided by the controller (not shown in the figure) performs a switching operation; the two dipoles ~ 3 ~ This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) 502557 A7 B7 V. Description of the invention (2) The body Dan and Dbn are connected in parallel to the transistors Qan and Qb] ri respectively; the resonance capacitor
Cbn依據電晶體Qan與Qbn的切換操作，與工作線圏Lrn進行 共振反應，而與共振電容Cbn—起作共振反應的工作線圈 Lrn，利用感應加熱方式，對加熱板進行加熱。 依據如上所述的習用感應烹調裝置，複數個反相器電 路被用來加熱複數個加熱板。特別的是，η個反相器電路 3-1，3-2，…·，3_η，被並聯連接到電源供應器，以操作 複數個工作線圏Lrl，Lr2，…，Lrn 〇 習用感應烹調裝置的加熱操作將詳細說明如下。 電源供應器1所供應的交流電，被磐流器2-n所整流， 而其整流電接著經由輸入濾波器，被加到反相器電路3 — n ，該輸入濾波器包含有抗流線圏Ln以及電容Can。 反相器電路3-η內的電晶體Qan與Qbn，對流過工作線 圈Lrn的電流，進行切換處理，Μ便對加熱板上的食物進 行加熱。 此時，電晶體Qan與Qbn依照一正確的時序，接·收由控 制器（圖中未顯示）所提供的切換控制信號，對流過工作線 圏的電流，進行切換操作。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 特別的是，由控制器所提供的切換控制信號，傳送到 晶體Qbn的基極，而使得電晶體Qbrx被導通，此時，電晶體 Qan是被關閉的。因此，經由整流器2-nM及輸入濾波器Ln 、Can所提供的電源，進一步經由工作線圏Lrn提供給電晶 體Qbn，形成一電流迴路，而且使得該工作線圏Lrn與電容 Cbn經由該電流迴路，一起進行共振反應。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 502557 A7 B7 五、發明説明（3 ) 接著，由控制器所提供的切換控制信號，傳送到晶體 Qan的基極，而使得電晶體Qan被導通，此時，電晶體Qbn 被關閉。因ifcb，當電晶體Qar^皮導通時，工作，線圈Lrn内所 蓄積的電流能量會產生一反向電流，流過電晶體Qan，形 成一電流迴路，並且該電流進一步流過工作線圏Lrn。 重覆上述的切換操作*工作線圈Lrn內所感應的能量 ，被傳送到與工作線圈Lrn相臨的加熱板上，對該加熱板 進行加熱。此時，依據電晶體Qan、Qbn的切換頻率之差額 ，控制流過工作線圏Lrl的電流，並進一步控制輸出功率 〇 結果，反相器電路3-1，3-2，…，3-η，經由其相對 應的工作線圏，對其相對應的加熱板進行加熱。相對應反 相器電路輸出功率的控制，是藉上述的頻率控制方法進行 控制。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 然而，習用感應烹調裝置缺點是*無法精確的控制工 作線圈的輸出功率，因為相臨工作線圈之間的操作頻率差 額*會產生干擾性的雜訊。此外，整體電路需要複數個反 相器、複數個整流器、複數個輸入濾波器，而且其個數與 工作線圏相同*因此整體電路構造複雜，使得生產製造成 本ί曾力口。 本發明之主要目的在提供一種共振式感應烹調裝置* 該烹調裝置能解決上述習用感應烹調裝置的缺點。 本發明之另一目的在提供一種共振式感應烹調裝置， 該烹調裝置包含有一反相器模組與一共振切換控制方法， 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 經濟部中央標準局員工消費合作社印製 502557 A7 B7 五、發明説明（4 ) 該反相器橫組能利用至少二個工作線圏，對至少二個加熱 板進行加熱，而該共振切換控制方法則利用該反相器模組 ，對工作線圈的電流進行切換控制。 本發明之另一目的在提供一種共振式感應烹調裝置， 該烹調裝置Μ分時方式，控制反相器模組内的二工作線圏 〇 本發明之另一目的在提供一種共振式感應烹調裝置， 該烹調裝置利用複數個並聯偁合反相器模組，Μ及Μ分時 方式控制其相對應的工作線圏，因此能加熱複數個加熱板 ，而不會產生干擾性雑訊。 本發明之另一目的在提供一種共振式感應烹調裝置， 該烹調裝置能簡化整體電路結構，Μ及能精確控制工作線 圈，該結果是利用複數個反相器模組與共振切換控制方法 ，以分時方式控制複數個工作線圏，因此不會在相臨的加 熱板之間產生干擾性雜訊。 本發明之另一目的在提供一種共振式感應烹調裝置， 該烹調裝置使用軟性切換，而能將切換單元的切換損失極 小化。 為了達到上述目的，本發明的多重輸出控制用之共振 式感應烹調裝置包含有： 將輸入交流電轉換為直流電的方法； 輸入切換方法，該方法利用一調節時序，將轉為直流 的電源； 工作線圏切換方法，該方法Μ分時方式，對具有調節 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閱讀背面之注意事項再填寫本頁) #· 訂 502557 A7 B7 五、發明説明（5 ) 時序的直流電進行切換處理； 至少二個工作線圏*利用輸入切換方法與工作線圈切 換方法，Μ進行感應加熱； 一第一共振方法，該方法是在工作線圏的分時切換其月 間，利用工作線圏切換方法，與其中一個工作線圈進行共 振反應； 一第二共振方法，該方法是在工作線圏的分時切換期 間，利用輸入切換方法，與其中一個工作線圏進行共振反 應。 藉參閱附圖Μ及Μ下較佳實施例的說明，則上述的目 的、本發明的其它特點與優點將更為明顯。 圖式之簡單說明： 圖一為習用感應烹調裝置的電路示意圖。 圖二為本發明第一實施例的電路示意圖。 圖三為當工作線圏LI 1操作時圖二各元件的波形圖。 圖四為當工作線圏L 12操作時圓二各元件的波形圖。 圖五為本發明第二實施例的電路示意圖。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 圖六為本發明第三實施例的電路示意圖。 圖七為本發明工作線圈L12操作時圖六各元件的波形 圖。 圖八為本發明工作線圏L13操作時圖六各元件的波形 圖。 圖九為本發明第四實施例的電路示意圖。 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） 經濟部中央標隼局員工消費合作社印製 502557 A7 B7 五、發明説明（6 ) 圖式中之參照數號 1電源供應器 11電源供應器 12整流器 13反相器部分 2玄配合圖式將本發明最佳實施例說明如下。 參閲圖二，本發明第一實施例的電路示意圖。圖中顯 示出依據本發明第一實施例的感應烹調裝置，該感應烹調 裝置包含有一電源供應器11、一整流器12、一輸入濾波器 、-一電晶體Q11、一個二極體D11、一車_肋共振電容C12、 一反相器部分13，其中電源供應器11提供交流電源；整流 器12將電源供應器11所提供的交流電源作整流處理；輸入 濾波器由一抗流線圏L11與一電容C11所構成，對整流過的 直流電源進行平滑化處理；電晶體Q11依據控制器（圖中未 顯示）的切換控制信號，對平滑化處理過得的直流電源進 行切換操作；二極體D11並聯連接到電晶體Q11 ;輔助共振 電容C12並聯連接到電晶體Q11 ;反相器部分13依據切換控 制信號，與電晶體Q11共同進行切換操作，進一步對複數 個加熱板進行加熱。 反相器部分13包含有二電晶體Q12與Q13、二個二極體 D12與D13、一電容C13，其中電晶體Q12與Q13依據切換控 制信號進行切換操作；二極體D12與D13並聯連接到電晶體 〜8〜 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁)Cbn performs a resonance reaction with the working line rnLrn according to the switching operation of the transistors Qan and Qbn, and the working coil Lrn, which acts as a resonance reaction with the resonance capacitor Cbn, uses an induction heating method to heat the heating plate. According to the conventional induction cooking device as described above, a plurality of inverter circuits are used to heat a plurality of heating plates. In particular, n inverter circuits 3-1, 3-2, ..., 3_η are connected in parallel to the power supply to operate a plurality of working lines 圏 Lrl, Lr2, ..., Lrn 〇 conventional induction cooking device The heating operation will be explained in detail as follows. The AC power supplied by the power supply 1 is rectified by the current transformer 2-n, and the rectified power is then applied to the inverter circuit 3-n through an input filter, which includes an anti-current line 圏Ln and capacitor Can. The transistors Qan and Qbn in the inverter circuit 3-η perform a switching process on the current flowing through the working coil Lrn, and M heats the food on the heating plate. At this time, the transistors Qan and Qbn receive and receive the switching control signal provided by the controller (not shown) according to a correct timing, and perform the switching operation on the current flowing through the working line 工作. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). In particular, the switching control signal provided by the controller is transmitted to the base of the crystal Qbn, so that the transistor Qbrx Is turned on, at this time, the transistor Qan is turned off. Therefore, the power provided by the rectifier 2-nM and the input filters Ln and Can is further provided to the transistor Qbn through the working line 圏 Lrn to form a current loop, and the working line 圏 Lrn and the capacitor Cbn are passed through the current loop. Resonant reactions take place together. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 502557 A7 B7 V. Description of the invention (3) Next, the switching control signal provided by the controller is transmitted to the base of the crystal Qan, so that the electricity The crystal Qan is turned on, and at this time, the transistor Qbn is turned off. Because of ifcb, when the transistor Qar ^ is turned on, it works, and the current energy accumulated in the coil Lrn generates a reverse current, which flows through the transistor Qan to form a current loop, and the current further flows through the working line 圏 Lrn. . The above-mentioned switching operation is repeated. The energy induced in the working coil Lrn is transmitted to a heating plate adjacent to the working coil Lrn, and the heating plate is heated. At this time, according to the difference between the switching frequencies of the transistors Qan and Qbn, the current flowing through the working line 圏 Lrl is controlled, and the output power is further controlled. As a result, the inverter circuits 3-1, 3-2, ..., 3-η Through its corresponding work line 圏, its corresponding heating plate is heated. The corresponding output power of the inverter circuit is controlled by the above-mentioned frequency control method. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). However, the disadvantage of the conventional induction cooking device is that * the output power of the working coils cannot be accurately controlled because the adjacent working coils The difference in operating frequency * can produce interfering noise. In addition, the overall circuit requires multiple inverters, multiple rectifiers, and multiple input filters, and the number is the same as the working line *. Therefore, the overall circuit structure is complicated, which makes the manufacturing cost more attractive. The main purpose of the present invention is to provide a resonant induction cooking device *, which can solve the disadvantages of the conventional induction cooking device. Another object of the present invention is to provide a resonant induction cooking device. The cooking device includes an inverter module and a resonance switching control method. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). Printed by the Consumer Standards Cooperative of the Ministry of Standards of the People's Republic of China 502557 A7 B7 V. Description of the Invention (4) The inverter horizontal group can use at least two working wires 加热 to heat at least two heating plates, and the resonance switching control method is The inverter module is used to switch and control the current of the working coil. Another object of the present invention is to provide a resonant induction cooking device. The cooking device uses a time-sharing mode to control two working lines in an inverter module. Another object of the present invention is to provide a resonant induction cooking device. The cooking device uses a plurality of parallel coupled inverter modules, and M and M time-sharing control their corresponding working lines, so it can heat a plurality of heating plates without generating interference noise. Another object of the present invention is to provide a resonant induction cooking device, which can simplify the overall circuit structure, and accurately control the working coil. The result is to use a plurality of inverter modules and a resonance switching control method to Time-sharing mode controls multiple working lines, so no interference noise will be generated between adjacent heating plates. Another object of the present invention is to provide a resonance-type induction cooking apparatus which uses soft switching and can minimize the switching loss of the switching unit. In order to achieve the above-mentioned object, the resonant induction cooking device for multiple output control of the present invention includes: a method for converting input AC power to DC power; an input switching method, which uses a timing adjustment to convert power to DC power; a working line圏 Switching method, this method is the time-sharing method. For the paper size adjustment, the Chinese National Standard (CNS) A4 specification (210X 297 mm) is applied (please read the precautions on the back before filling this page) # · Order 502557 A7 B7 V. Description of the invention (5) Sequential direct current is used for switching processing; at least two working lines 圏 * use input switching method and working coil switching method, M for induction heating; a first resonance method, which is on the working line 圏During the time-sharing of the time-sharing switch, the working line 圏 switching method is used to perform a resonance reaction with one of the working coils. A second resonance method is to use the input switching method during the time-sharing switching of the working line 与 with one of them. The work line 圏 performs a resonance reaction. With reference to the description of the preferred embodiments under the drawings M and M, the other features and advantages of the present invention will be more apparent for the purposes described above. Brief description of the drawings: Figure 1 is a schematic circuit diagram of a conventional induction cooking device. FIG. 2 is a schematic circuit diagram of the first embodiment of the present invention. FIG. 3 is a waveform diagram of each component of FIG. 2 when the working line 圏 LI 1 is operating. Figure 4 is a waveform diagram of the components of circle two when the working line 圏 L 12 is operated. FIG. 5 is a schematic circuit diagram of a second embodiment of the present invention. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Figure 6 is a schematic circuit diagram of the third embodiment of the present invention. FIG. 7 is a waveform diagram of each component of FIG. 6 when the working coil L12 of the present invention is operating. FIG. 8 is a waveform diagram of each component of FIG. 6 when the working line 13L13 of the present invention is operating. FIG. 9 is a schematic circuit diagram of a fourth embodiment of the present invention. This paper size applies to Chinese National Standard (CNS) A4 (210 × 297 mm) Printed by the Employees' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 502557 A7 B7 V. Description of the invention (6) Reference number in the drawing 1 Power supply 11 The power supply device 12 rectifier 13 inverter portion 2 is shown in FIG. 2 to illustrate the preferred embodiment of the present invention as follows. Referring to FIG. 2, a circuit diagram of a first embodiment of the present invention is shown. The figure shows an induction cooking device according to a first embodiment of the present invention. The induction cooking device includes a power supply 11, a rectifier 12, an input filter, a transistor Q11, a diode D11, and a car. _ Rib resonance capacitor C12, an inverter section 13, in which the power supply 11 provides AC power; the rectifier 12 rectifies the AC power provided by the power supply 11; the input filter is composed of an anti-current line L11 and a Capacitor C11 smoothes the rectified DC power supply; transistor Q11 switches the smoothed DC power supply according to the switching control signal of the controller (not shown in the figure); diode D11 The transistor Q11 is connected in parallel; the auxiliary resonance capacitor C12 is connected in parallel to the transistor Q11; the inverter section 13 performs a switching operation together with the transistor Q11 according to a switching control signal, and further heats a plurality of heating plates. The inverter section 13 includes two transistors Q12 and Q13, two diodes D12 and D13, and a capacitor C13, wherein the transistors Q12 and Q13 perform a switching operation according to a switching control signal; the diodes D12 and D13 are connected in parallel to Transistor ~ 8 ~ This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)
502557 A7 B7 五、發明説明（7 ) Q12與Q13 ;電容C13依據電晶體Q12與Q13的切換操作，與 工作線圈L12與L13—起進行共振反應，Μ致於該工作線圈 L12與L13對加熱板進行加熱。 依據本發明第一實施例的共振式感應烹調裝置，反相 器部分13包含一反相器模組，Μ便對二加熱板進行加熱。 依據本發明第一實施例的共振式感應烹調裝置，其詳 細操作將作進一步說明。 參閲圖三，當工作線圏LM：操作時圖二各元件的波形 圖。其中圖三（Α)至（Η)分別為圖二各單元，在工作線圈L 12操作時的電流、電壓波形圖。 同時配合圖二，在時間tO的啟始狀態下，電晶體Q13 保持關閉，輔助共振電容C12的電壓為0V *而且其它共振 單元的啟始電壓皆為0V。 此時，如果電晶體Q11與Q12被導通，如圖三（A)與圖 三（B)所示，則一線性遞增的電流IL12，如圖二（D)所示， 會藉輸入直流電源，經流過電晶體Q11與Q12，再流過工作 線圈L12。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 如果該遞增的電流IL12達到一預定值，則電晶體Q11 在時間tl時，會被關閉掉。 此時，輔助共振電容C12與工作線圏L12，藉工作線圈 L12所蓄積的電流能量，一起發生維持一短時間的共振反 應。502557 A7 B7 V. Description of the invention (7) Q12 and Q13; The capacitor C13 reacts with the working coils L12 and L13 based on the switching operation of the transistors Q12 and Q13. M causes the working coils L12 and L13 to heat the plate. Heat. According to the resonance induction cooking apparatus of the first embodiment of the present invention, the inverter section 13 includes an inverter module, and M heats the two heating plates. The detailed operation of the resonance induction cooking apparatus according to the first embodiment of the present invention will be further explained. Refer to Figure 3, when working line 圏 LM: waveforms of each component in Figure 2 when operating. Figures 3 (A) to ()) are the current and voltage waveforms of each unit in Figure 2 when the working coil L 12 is operating. At the same time as shown in Figure 2, in the initial state of time tO, transistor Q13 remains off, the voltage of auxiliary resonance capacitor C12 is 0V *, and the initial voltage of other resonance units is 0V. At this time, if the transistors Q11 and Q12 are turned on, as shown in Fig. 3 (A) and Fig. 3 (B), a linearly increasing current IL12, as shown in Fig. 2 (D), will be input by DC power. After passing through the transistors Q11 and Q12, it then flows through the working coil L12. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). If the increasing current IL12 reaches a predetermined value, the transistor Q11 will be turned off at time t1. At this time, the auxiliary resonance capacitor C12 and the working line 圏 L12 borrow the current energy stored in the working coil L12 to maintain a short-term resonance reaction together.
如果輔助共振電容C12的電壓與共振進行中的直流輸 入電壓相等，則電晶體Q12與工作線圏L12的端電壓降為0V 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 經濟部中央標率局員工消費合作社印製 502557 A7 B7 五、發明説明（8 ) 〇 此時，也就是說在時間t2，電晶體Q12被關閉，而電 晶體Q13被導通，使得工作線圏L12與電容C13發生共振反 應。 此時，電流反方向流過工作線圏L12 *而工作線圈L12 與電容C13發生共振反應。如圖三（E)所示，電容C13的電 壓上升，直到時間t3，接著下降到OV，使得電晶體Q13在 時間t4時會被關閉掉。 如上所述，當共振電容C13的電壓變為OV，Μ及電晶 體Q13被關閉，輔助共振電容C12與工作線圏L12，藉工作 線圏L12所蓄積的電流能量，一起發生維持一短時間的共 振反應*使得輔助共振電容C12的電壓下降到OV。 工作線圏L12上殘留的電流會經過連接電晶體Q11的二 極體D11，再流到輸入端，结果，工作線圏L12上的電流會 作線性遞減，如圖三(D)所示。 此時，既然電晶體Q11與Q12的電壓變為OV，則電晶體 Q11與Q12便被同時導通。 如果在時間t6，工作線圏L12上的電流藉電晶體Q11的 關閉而下降到OV，如圖三（D)所示，則一操作週其月便被完 成。 特別的是，當電晶體Q11被如圖三（A)所示的時序所切換 ，電晶體Q12被如圖三（B)所示的時序所切換，Μ及電晶體 Q13被如圖三（C)所示的時序所切換時，流過工作線圏L12 上的電流IL12便被如圖三（D)所示的電流波形所控制。此 〜1〇〜 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) C. 訂 經濟部中央標準局員工消費合作社印製 502557 A7 __B7 五、發明説明（9 ) 時，如圖三（E)所示的共振電容C13的電壓波形VC13 , Μ及 電晶體Q13、Q12、Q11的電壓VQ13、VQ12、VQ11，分別被 改變，如圖三（F)、（G)、（Η)所示。 流過二極體D13的電流ID13，Μ及流過電晶體Q13的電 流IQ13會被改變，如圖三（F)的虛線所示；流過二極體D12 的電流ID12，Μ及流過電晶體Q12的電流IQ12會被改變， 如圖三（G)的虛線所示；流過二極體D11的電流ID11，Μ及 流過電晶體Q11的電流IQ11會被改變，如圖三（Η)的虛線所 77¾ ° 當切換控制依照上述之時序進行時，一適當的電流會 流過工作線圏L12，使得加熱板被加熱。 同時，另一工作線圏L13，依照與工作線圏L12相類似 的方式進行操作。 參閱圖四，當工作線圈L12操作時圖二各元件的波形 圖。如圖四（A)與（B)所示，如果電晶體Q11與Q13在時間tO 被導通，則電晶體Q11與Q13配合輸入直流電源*形成一迴 路，而一線性遞增電流IL13，如圖四（D)所示，流過工作 線圏L13。 接著，如果電晶體Q11在時間tl時被關閉，輔助共振 電晶體C12與工作線圈L13，藉工作線圈L13內所蓄積的電 流能量，一起進行共振反應，並維持一小段時間。 如果輔助共振電晶體C12的電壓降到0V，如上述的共 振反應發生過程，電晶體Q13在時間t2時被關閉，同時電 晶體Q12被導通，結果工作線圏L13與共振電晶體C13發生 11 本紙張尺度適用中國國家榡準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁)If the voltage of the auxiliary resonance capacitor C12 is equal to the DC input voltage during the resonance, the terminal voltage drop of the transistor Q12 and the working line 12L12 will be 0V. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) Printed by the Employees Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 502557 A7 B7 V. Description of the invention (8) At this time, that is, at time t2, the transistor Q12 is turned off, and the transistor Q13 is turned on, making the working line 圏 L12 Resonant with capacitor C13. At this time, the current flows through the working line 工作 L12 * in the opposite direction, and the working coil L12 and the capacitor C13 react in resonance. As shown in Figure 3 (E), the voltage of capacitor C13 rises until time t3, and then drops to OV, so that transistor Q13 will be turned off at time t4. As mentioned above, when the voltage of the resonance capacitor C13 becomes OV, M and the transistor Q13 are turned off, the auxiliary resonance capacitor C12 and the working line 圏 L12 borrow the current energy accumulated in the working line 圏 L12 to maintain a short time. The resonance response * causes the voltage of the auxiliary resonance capacitor C12 to drop to OV. The residual current on the working line 圏 L12 will pass through the diode D11 connected to the transistor Q11, and then flow to the input terminal. As a result, the current on the working line 圏 L12 will decrease linearly, as shown in Figure 3 (D). At this time, since the voltages of the transistors Q11 and Q12 become OV, the transistors Q11 and Q12 are turned on at the same time. If at time t6, the current on the working line 圏 L12 drops to OV by turning off the transistor Q11, as shown in Fig. 3 (D), the operation will be completed within a month. In particular, when transistor Q11 is switched by the timing shown in FIG. 3 (A), transistor Q12 is switched by the timing shown in FIG. 3 (B), and M and transistor Q13 are switched by FIG. 3 (C When the timing shown in Figure) is switched, the current IL12 flowing on the working line 圏 L12 is controlled by the current waveform shown in Figure 3 (D). This ~ 1〇 ~ This paper size applies Chinese National Standard (CNS) Α4 specification (210X297 mm) (Please read the precautions on the back before filling this page) C. Order printed by the Central Consumers Bureau of the Ministry of Economic Affairs Consumer Cooperatives 502557 A7 __B7 V. In the description of the invention (9), the voltage waveforms VC13, M of the resonance capacitor C13 and the voltages VQ13, VQ12, and VQ11 of the transistor Q13, Q12, and Q11 shown in FIG. 3 (E) are changed, as shown in the figure. Three (F), (G), (Η). The current ID13, M flowing through the diode D13 and the current IQ13 flowing through the transistor Q13 will be changed, as shown by the dashed line in FIG. 3 (F); the current ID12, M and the current flowing through the diode D12 will be changed. The current IQ12 of the crystal Q12 will be changed, as shown by the dashed line in Figure 3 (G); the current ID11, M flowing through the diode D11 and the current IQ11 flowing through the transistor Q11 will be changed, as shown in Figure 3 (Η). When the switching control is performed according to the above-mentioned sequence, an appropriate current will flow through the working line 圏 L12, so that the heating plate is heated. At the same time, the other work line 圏 L13 operates in a similar way to the work line 圏 L12. Referring to Fig. 4, the waveform diagrams of the components of Fig. 2 when the working coil L12 is operated. As shown in Figure 4 (A) and (B), if transistors Q11 and Q13 are turned on at time tO, transistors Q11 and Q13 cooperate with the input DC power supply * to form a loop, and a linearly increasing current IL13, as shown in Figure 4 (D) flows through the work line 圏 L13. Next, if the transistor Q11 is turned off at time t1, the auxiliary resonance transistor C12 and the work coil L13 perform a resonance reaction together with the current energy stored in the work coil L13 and maintain it for a short period of time. If the voltage of the auxiliary resonance transistor C12 drops to 0V, as in the above-mentioned resonance reaction, the transistor Q13 is turned off at time t2, and at the same time the transistor Q12 is turned on. As a result, the working line 13L13 and the resonance transistor C13 occur 11 Paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)
訂 502557 A7 B7 五、發明説明（10) 共振反應。 接著，如果共振電晶體C13的電壓VC13上升，直到時 間1:3，然後下降到OV，如圖四（Έ)所示，當工作線圏L13與 共振電晶體C13的共振反應進行時*電晶體Q12在時間t4時 被關閉掉。 當電晶體Q12被關閉，工作線圏L13與共振電晶體C13 進行共振反應，並維持一小段時間，使得輔助共振電晶體 C12的電壓降至y 0 V 〇 工作線圏L13的殘餘電流，經二極體Dll流到輸入端， 而二極體D11連接到電晶體C111，並且工作線圏L13的電流I L13成線性遞減，如圖四（D)所示。 虫b時，既然電晶體Q11與Q13的電壓為OV，在時間t5時 便再一次被導通。 如果工作線圈L13的電流，在電晶體Q11被導通之前* 而在時間t6時下降到0，如圖四（D)所示，則一操作週期便 被完成。 藉重覆上述操作，一適當的功率便被傳送到工作線圏 L13 上。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 特別的是，電晶體Qll、Q12、Q13 *被圖四（A)、（B)、 (C)所示的時序，作切換控制，結果，工作線圏L13的電流 IL13被控制得如圖四（D)所示的波形。 共振電容C13的電壓VC13的電壓變化波形，就女口圖四（E )所示。 如上所述，依據本發明，二工作線圏L12、L13不會被 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中央標準局員工消費合作社印製 502557 A7 B7 五、發明説明（11) 同時操作，但是，其中之一則Μ分時方式***作，而且二 加熱板之間的干擾性雜訊便不會被產生。 結果，本發明使用一分時控制方式，利用一反相器電 路，Μ操作二工作線圏。此外，本發明使用軟性切換方法 ，降低切換損失，如圖三（i\)至（Η)所示。 參閱圖五，本發明第二實施例的電路示意圖。 在第二實施例中，一第二反相器13M分時方式，被用 來操作四個工作線圏L12、L13、L14、L15，該第二反相器 13參|反相器13相同，是由相同的單元Q14、Q15、D14、D15 、C14、L14、L15所構成。本實施例的操作與第一實施例 的相類似，其中加熱板被Μ —種分時方式所加熱。 參閱圖六，本發明第三實_例的電路示意圖。圖中顯 示，本發明第三實施例的共振式感應加熱裝置包含有一電 源供應器11、一整流器12、一輸入濾波器、一電晶體Q11 、一個二極體D11、一反相器13、一輔助共振電容C12、一 個二極體D16，其中電源供應器11提供一交流電源；整流 器12對電源供應器11所提供的交流電進行整流處理；輸入 濾波器由一抗流線圏L11與一電容C11所構成，對整流器12 的整流過的直流電，進行平滑化處理；電晶體Q11依據控 制器（_中未顯示）的切換控制信號*對經由輸入濾波器的 平滑直流電，進行切換操作；二極體D11並聯連接到電晶 體Q11 ;反相器13依據切換控制信號，配合電晶體Q11進行 切換操作，Μ對加熱板進行加熱；輔肋共振電容C12連接 到反相器13 ;二極體D16並聯連接到輔肋共振電容C12。 〜13〜 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閱讀背面之注意事項再填寫本頁) I·裝. 、1Τ 經濟部中央標準局員工消費合作社印製 502557 A7 B7 五、發明説明（12) 反相器13包含有二電晶體Q12與Q13、二保護二極D12 與D13、一電容C13、一個二極體D17，其中電晶體Q12與 Q13藉依據切換控制信號所進行的切換操作，Μ操作工作 線圏L12、L13 ;保護二極體D12、D13分別並聯連接到電晶 體C112、Q13 ;電容C13與工作線圈L12、L13 , —起進行共 振反應；二極體D17並聯連接到電容C13。該工作線圈L12 、：L13依照電晶體Q12與Q13的切換操作，Μ及藉與電容C13 的共振反應，對加熱板進行加熱。 參閱圖七，本發明工作線圈L12操作時圖六各元件的 波形圖。如圖七（Α)與圖七（Β)所示，如果電晶體Q11與Q12 在時間tO時被導通*則一線性遞增的電流，如圖七（D)， 便會由直流電源端流過電晶體Qll、Q12，與工作線圏L12 〇 接著，如果電晶體Q11在時間tl時被關閉，與工作線 圈L12會藉工作線圏L12所蓄積的電流能量，與輔助共振電 容C12發生共振反應，並維持一小段時間。 當輔助共振電容C12的電壓在共振反應進行當中而下 降到0V時*工作線圏L12的電流循著電晶體Q12、工作線圈 L13、二極體D16所構成的路徑流動。 此時，如果電晶體Q12在時間t3時被關閉，而且電晶 體Q13被導通，則工作線圈L12與電容C13便會一起進行共 振反應。 接著，姐I果電容C13的電壓VC13上升，直到時間t4， 然後下降到0V，在工作線圏L12與電容C13共振反應進行當 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) ')·裝· 經濟部中央標準局員工消費合作社印製 502557 A7 B7 五、發明説明（13) 中，則工作線圏L12上的電流，循著工作線圏L12、二極體 D17、電晶體Q13所構成的路徑流動。 如果電晶體Q13在時間t6時被關閉，輔助共振電容C12 與工作線圏L12會藉工作線圏L12所蓄積的電流能量，與輔 助共振電容C12發生共振反應，並維持一小段時間，使得 輔助共振電容C12被充電到輸入電壓的準位。 工作線圈L12的殘餘電流，經連接電晶體Q11的二極體 D11，流到輸入端，使得工作線圏L12的電流成線性遞減， 如圖七（D)所示。 此時，既然電晶體Q12、Q13的電壓下降到OV，電晶體 C112、Q13在時間時，又被再一次導通。 如果工作線圏L12的電流，在電晶體Q11被導通之前， 下降到0的話，便完成一操作週期便。 藉重覆上述操作，一適當的功率便被傳送到工作線圈 L12上。. 電晶體Qll、Q12、Q13的切換時序如圖七（A)、（B)、（C )所示。工作線圏L12的電流IL12便如圖七（D)所示的電流 波形作改變，而且，共振電容C13的電壓VC13如圖七（E)所 示的電壓波形作改變。 電晶體Q13的電流IQ13與電壓VQ13，K及二極體D13的 電流ID13如圖七（G)所示的作變化，同時電晶體Q11的電流 Kill與電壓VQ11，Μ及二極體D11的電流ID11如圖七（H)所 示的作變化。 工作線圈L13的操作與工作線圈L12的相同。參閲圖八 〜15〜 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閲讀背面之注意事項再填寫本頁) -I·裝. 訂 經濟部中央標率局員工消費合作社印製 502557 A7 B7 五、發明説明（14：) 如圖八（D)所示。 獻I時，既然電晶體Qll、Q13的電壓下降至!JOV，電晶體 Q12、Q13在時間t7時，又被再一次導通〇 如果工作線圏L13的電流，在電晶體Q11被導通之前， 下降到0的話，便完成一操作週期便。 藉重覆上述操作，一適當的功率便被傳送到工作線圈 L13.±: 〇 如上所述，依據本發明*二工作線圏被一反相器電路 ，以、分時方式所操作，而且，在工作線圏之間不會產生干 擾性雑訊。 參閱圖九，本發明第四實施例的電路示意圖。 在第四實施例中，一第二反相器13A與反相器13相同 ，由相同的構造單元 Q16、Q17、L16、L17、C15、D18、 D19所構成，而且，額外使用二極體D20M分時方式操作四 個工作線圈L12、L13、L16、L17。本實施例的操作與圖六 所示的相類似，其中二加熱板被Μ分時方式所加熱。 綜合來說，很顯然，依據本發明的共振式感應烹調裝 置所提供的優點是，利用一分時方式，控制工作線圏的輸 出功率，以、便能使用非常少數目的切換單元，對複數個加 熱板進行加熱，而且，不會在相臨工作線圏之間產生干擾 性雜訊。此外，反相器電路的尺寸Μ及其製造成本被降低 ，而切換損失與切換雜訊也被極小化。本發明能被應用到 任何使用大量加熱板的感應加熱烹調設備上。 綜上所述，當知本案發明具有實用性與新穎性，且本 17^^ 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁)Order 502557 A7 B7 V. Description of the invention (10) Resonance reaction. Next, if the voltage VC13 of the resonant transistor C13 rises until time 1: 3, and then drops to OV, as shown in Figure 4 (Έ), when the resonance reaction between the working line 圏 L13 and the resonant transistor C13 progresses * transistor Q12 is turned off at time t4. When transistor Q12 is turned off, working line 圏 L13 reacts with resonance transistor C13 and maintains it for a short period of time, so that the voltage of auxiliary resonance transistor C12 drops to y 0 V 〇 Residual current of working line ， L13, after two The pole D11 flows to the input terminal, and the diode D11 is connected to the transistor C111, and the current I L13 of the working line 圏 L13 decreases linearly, as shown in FIG. 4 (D). At the time of the insect b, since the voltage of the transistors Q11 and Q13 is OV, it is turned on again at time t5. If the current of the working coil L13 falls before the transistor Q11 is turned on * and decreases to 0 at time t6, as shown in Figure 4 (D), an operation cycle is completed. By repeating the above operation, an appropriate power is transmitted to the working line 圏 L13. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). In particular, the transistors Qll, Q12, Q13 * are shown in Figure 4 (A), (B), (C) As shown in the timing, switching control is performed. As a result, the current IL13 of the working line 圏 L13 is controlled to have a waveform as shown in FIG. 4 (D). The voltage change waveform of the voltage VC13 of the resonance capacitor C13 is shown in FIG. 4 (E) of the female mouth. As mentioned above, according to the present invention, the second working line 圏 L12, L13 will not be applied to the Chinese paper standard (CNS) A4 (210X297 mm) of this paper size. It is printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 502557 A7 B7 V. Description of the Invention (11) Simultaneous operation, but one of them is operated in a time-sharing manner, and interfering noise between the two heating plates is not generated. As a result, the present invention uses a time-sharing control method, and an inverter circuit is used for M to operate two working coils. In addition, the present invention uses a soft handover method to reduce the handover loss, as shown in (i \) to (Η) in FIG. Referring to FIG. 5, a schematic circuit diagram of a second embodiment of the present invention. In the second embodiment, a second inverter 13M time-sharing mode is used to operate the four working lines 12L12, L13, L14, L15. The second inverter 13 is the same as the inverter 13, It is composed of the same units Q14, Q15, D14, D15, C14, L14, and L15. The operation of this embodiment is similar to that of the first embodiment, in which the heating plate is heated by M-time-sharing. Referring to FIG. 6, a circuit diagram of a third embodiment of the present invention is shown. The figure shows that the resonance type induction heating device according to the third embodiment of the present invention includes a power supply 11, a rectifier 12, an input filter, a transistor Q11, a diode D11, an inverter 13, and an Auxiliary resonance capacitor C12 and a diode D16, in which the power supply 11 provides an AC power; the rectifier 12 rectifies the AC power provided by the power supply 11; the input filter is composed of an anti-current line L11 and a capacitor C11 The smoothing process is performed on the rectified DC power of the rectifier 12; the transistor Q11 performs a switching operation on the smooth DC power through the input filter according to the switching control signal of the controller (not shown in _); the diode D11 is connected in parallel to transistor Q11; inverter 13 performs switching operation with transistor Q11 according to the switching control signal, and M heats the heating plate; auxiliary rib resonance capacitor C12 is connected to inverter 13; diode D16 is connected in parallel To the auxiliary rib resonance capacitor C12. ～ 13 ～ This paper size applies Chinese National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back before filling out this page) I. Packing. 1T Printed by the Central Consumers Bureau of the Ministry of Economic Affairs Consumer Cooperatives 502557 A7 B7 V. Description of the invention (12) The inverter 13 includes two transistors Q12 and Q13, two protection diodes D12 and D13, a capacitor C13, and a diode D17, among which the transistors Q12 and Q13 are controlled by switching. The switching operation performed by the signal, M operates the working lines 12 L12 and L13; the protection diodes D12 and D13 are connected in parallel to the transistors C112 and Q13 respectively; the capacitor C13 and the working coil L12 and L13 perform a resonance reaction together; the two poles Body D17 is connected in parallel to capacitor C13. The working coils L12 and L13 heat the heating plate according to the switching operation of the transistors Q12 and Q13, and M and the resonance reaction with the capacitor C13. Referring to FIG. 7, the waveform diagrams of the components of FIG. 6 when the working coil L12 of the present invention is operating. As shown in Figure 7 (A) and Figure 7 (B), if the transistors Q11 and Q12 are turned on at time tO *, a linearly increasing current will flow through the DC power terminal as shown in Figure 7 (D). The transistors Q11 and Q12 are connected to the working line 圏 L12. Then, if the transistor Q11 is turned off at time t1, the working coil L12 will use the current energy accumulated in the working line 圏 L12 to resonate with the auxiliary resonance capacitor C12. And maintain it for a short time. When the voltage of the auxiliary resonance capacitor C12 drops to 0V during the resonance reaction *, the current of the working line 圏 L12 flows along the path formed by the transistor Q12, the working coil L13, and the diode D16. At this time, if the transistor Q12 is turned off at time t3 and the transistor Q13 is turned on, the working coil L12 and the capacitor C13 will resonate together. Next, the voltage VC13 of the capacitor C13 rises until time t4, and then drops to 0V, and the resonance reaction of the capacitor C13 at the working line 12L12 is performed. When this paper size applies the Chinese National Standard (CNS) Α4 specification (210X297 mm) (Please read the precautions on the back before filling out this page) ') · Printing · Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 502557 A7 B7 5. In the description of the invention (13), the current on the working line 圏 L12, Flow along the path formed by the working line 圏 L12, the diode D17, and the transistor Q13. If the transistor Q13 is turned off at time t6, the auxiliary resonance capacitor C12 and the working line 圏 L12 will borrow the current energy accumulated in the working line 圏 L12 to have a resonance reaction with the auxiliary resonance capacitor C12 and maintain a small period of time to make the auxiliary resonance The capacitor C12 is charged to the level of the input voltage. The residual current of the working coil L12 flows to the input terminal via the diode D11 connected to the transistor Q11, so that the current of the working line 圏 L12 decreases linearly, as shown in FIG. 7 (D). At this time, since the voltages of the transistors Q12 and Q13 have dropped to OV, the transistors C112 and Q13 are turned on again at the time. If the current of the working line 圏 L12 drops to 0 before the transistor Q11 is turned on, an operation cycle is completed. By repeating the above operation, an appropriate power is transmitted to the working coil L12. The switching timing of the transistors Q11, Q12, and Q13 are shown in Figure 7 (A), (B), and (C). The current IL12 of the working line 圏 L12 changes as shown in the current waveform shown in Fig. 7 (D), and the voltage VC13 of the resonance capacitor C13 changes as shown in the voltage waveform shown in Fig. 7 (E). Transistor Q13 current IQ13 and voltage VQ13, K and diode D13 current ID13 change as shown in Figure VII (G), while transistor Q11 current Kill and voltage VQ11, M and diode D11 current ID11 changes as shown in Figure 7 (H). The operation of the work coil L13 is the same as that of the work coil L12. Please refer to Figure 8 ~ 15 ~ This paper size applies Chinese National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back before filling this page) -I. Packing. Staff of Central Standardization Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative 502557 A7 B7 V. Description of the invention (14 :) Figure 8 (D). At the time of I, since the voltages of the transistors Q11 and Q13 have dropped to! JOV, the transistors Q12 and Q13 are turned on again at time t7. If the current of the working line 圏 L13 drops before the transistor Q11 is turned on, When it reaches 0, one operation cycle is completed. By repeating the above operation, an appropriate power is transmitted to the working coil L13. ±: 〇 As described above, according to the present invention * the two working lines are operated by an inverter circuit in a time-sharing manner, and There will be no interfering noise between work lines. Referring to FIG. 9, a schematic circuit diagram of a fourth embodiment of the present invention is shown. In the fourth embodiment, a second inverter 13A is the same as the inverter 13 and is composed of the same structural units Q16, Q17, L16, L17, C15, D18, and D19, and a diode D20M is additionally used. Operate the four working coils L12, L13, L16, L17 in time-sharing mode. The operation of this embodiment is similar to that shown in Fig. 6, in which the two heating plates are heated by the M time division method. In summary, it is clear that the advantage provided by the resonant induction cooking device according to the present invention is that the output power of the working line is controlled by using a time-sharing method, so that a very small number of switching units can be used for multiple The heating plate is used for heating, and there is no interference noise between adjacent working lines. In addition, the size of the inverter circuit M and its manufacturing cost are reduced, and the switching loss and switching noise are also minimized. The present invention can be applied to any induction heating cooking apparatus using a large number of heating plates. In summary, it is known that the invention of this case has practicability and novelty, and this paper size of 17 ^^ applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page )
訂 502557 A7 B7 五、發明説明（15) 發明未見之於任何刊物，當符合專利法規定。 唯μ上所述者，僅為本發明之一較佳實施例而已*當 不能以、之限定本發明實施之範圍。即大凡一本發明申請專 利範圍所作之均等變化與修飾，皆應屬本發明專利涵蓋之 範圍內。 (讀先閱讀背面之注意事項再填寫本頁) •裝. 訂 經濟部中央標準局員工消費合作社印製 〜18〜 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐）Order 502557 A7 B7 V. Description of the invention (15) If the invention is not found in any publication, it shall comply with the provisions of the Patent Law. The above is only one of the preferred embodiments of the present invention. It should not be used to limit the scope of implementation of the present invention. That is to say, all equal changes and modifications made in the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention. (Read the precautions on the back before you fill in this page) • Packing. Order Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economics ~ 18 ~ This paper size applies the Chinese National Standard (CNS) Α4 specification (210X297 mm)