M416.934 五、新型說明： 【新型所屬之技術領域】 [0001] 本創作涉及一種供電電路，尤指一種具切換電源供 電裝置。 【先前技術】 [0002] 請參照第1圖所示，現今雙電源切換系統主供電迴路 91皆只藉保護電驛95，檢測主供電迴路91之電壓進行轉 供電判斷的依據，若於運作中單一保護電驛95之電壓模 組或電壓感測器951發生故障，保護電驛95即截止本身所 控制的開關器96之導通，使主供電迴路91陷入誤停電之 情況；另雙電源切換系統亦有切換迴路轉供電之功能， 於發生主供電迴路91停止供電時，會轉由副供電迴路92 供應電力，然短路故障若發生於主供電迴路91下游數分 '' 路負載911之AC Bus上，又逢保護電驛95本身故障，來 不及抑制轉供電，遂讓短路故障未排除前即切換由副供 電迴路92供電時，副供電迴路92本身之數負載921亦會因 短路故障使轉供電失效，致整體供電系統產生全面停電 的情況，故上述單一保護電驛95無法提供雙電源切換系 統可靠的判斷供電迴路之故障情況。 【新型内容】 [0003] 本創作一種雙電源安全切換裝置，係為克服現有電 源切換系統之只藉單一保護電驛傳送檢測電壓及電流訊 號，即判斷迴路之電力供應情況，易因保護電驛内部本 身的偵測模組或輸出模組的故障，造成誤切換或誤停電 之缺點。 表單編號A0101 第3頁/共17頁 [0004]M416934 [0005] [0006] [0007] [0008] 為達前述本創作的目的，本創作採用的技術方案是 提供一種雙電源安全切換裝置，該雙電源安全切換裝置 包括有： 兩供電迴路，該供電迴路設有一開關器，該供電迴 路的該開關器上游側設有一電流檢測器，該電流檢測器 電性連接有一第一保護電驛及一第二保護電驛；一支援 開關，為並聯兩供電迴路的該開關器下游輸出的支援開 關；一控制單元，該控制單元電性連接該第一保護電驛 及該第二保護電驛，該控制單元控制電性連接該開關器 及該支援開關。 進一步地，本創作所述的雙電源安全切換裝置，更 包括有一總電流運算單元，該總電流運算單元電性連接 兩供電迴路的電流檢測器，該總電流運算單元傳送兩供 電迴路的總電流訊號至電性連接的該控制單元。 進一步地，本創作所述的雙電源安全切換裝置，其 中，該第二保護電驛更電性連接一檢測該開關器下游電 壓的電壓檢測器。 進一步地，本創作所述的雙電源安全切換裝置，其 中，該供電迴路的該開關器上游更設有一接地故障電流 檢知器，該接地故障電流檢知器電性連接該第一保護電 驛及該第二保護電驛。 本創作採用另一的技術方案是提供一種雙電源安全 切換裝置，該雙電源安全切換裝置包括有：兩供電迴路 ，該供電迴路設有一開關器，該供電迴路的該開關器上 表單编號A0101 第4頁/共17頁 [0009] M416.934 游側設有一電流檢測器；一支援開關，為並聯兩供電迴 路的該開關器下游輸出的支援開關；一控制單元，該控 制單元控制電性連接該開關器及該支援開關；一總電流 運算單元，該總電流運算單元電性連接兩供電迴路的電 流檢測器，該總電流運算單元傳送兩供電迴路的總電流 訊號至電性連接的該控制單元。 [0010] 本創作另一的技術方案，進一步地，本創作所述的 雙電源安全切換裝置，其中，該電流檢測器電性連接有 一第一保護電驛及一第二保護電驛。 [0011] 本創作另一的技術方案，進一步地，本創作所述的 雙電源安全切換裝置，其中，該第一保護電驛及第二保 護電驛傳送檢測訊號至電性連接的控制單元。 [0012] 本創作另一的技術方案，進一步地，本創作所述的 雙電源安全切換裝置，其中，該第二保護電驛更電性連 接一檢測該開關器下游電壓的電壓檢測器。 [0013] 本創作另一的技術方案，進一步地，本創作所述的 雙電源安全切換裝置，其中，該供電迴路的該開關器上 游更設有一接地故障電流檢知器，該接地故障電流檢知 器電性連接該第一保護電驛及該第二保護電驛。 [0014] 通過上述技術方案，本創作相較於現有技術至少具 有下列優點： [0015] 1.本創作第一保護電驛、第二保護電驛及總電流運算 單元連接單一個電流檢測器，可節省設備成本及可達到 同步檢測供電迴路的電流。 表單編號A0101 第5頁/共17頁 M416934 [0016] 2.本創作第一保護電驛及第二保護電驛同時提供控制 單元檢測訊號，可避免單一保護電驛故障，遂造成供電 迴路的誤切換與誤停電。 [0017] 3.本創作總電流運算單元可加總兩供電迴路的用電量 ，供轉供電前自動判斷供電設備是否超過本身的安全裕 度，避免人員疏失造成全面停電的意外。 【實施方式】 [0018] 請參照第2及3圖所示，本創作之雙電源安全切換裝 置，包括有： [0019] 兩供電迴路8，該供電迴路8設有一開關器1，用以控 制供電迴路8之供電，該供電迴路8的該開關器1下游側設 有連接複數個負載81的負載匯流排82(AC Bus)，該供電 迴路8的該開關器1上游側設有一電流檢測器2及一接地故 障電流檢知器21，該電流檢測器2電性連接有一第一保護 電驛4及一第二保護電驛5，該第一保護電驛4藉一電性連 接的電壓檢測器3連接檢測於該供電迴路8的該開關器1上 游側電壓，該第二保護電驛5藉一電性連接的電壓檢測器 3連接檢測該供電迴路8之負載匯流排82(AC Bus)電壓， 該接地故障電流檢知器21電性連接該第一保護電驛4及該 第二保護電驛5，可提供對該供電迴路8高感度的接地故 障電流檢測。 [0020] 一支援開關6，為並聯兩供電迴路8之該開關器1下游 輸出該負載匯流排82(AC Bus)的支援開關6，用於兩供 電迴路8之間的供電切換。 表單編號A0101 第6頁/共17頁 [0021] 一總電流運算單元7，該總電流運算單元7電性連接 該電流檢測器2，可藉此運算檢測兩供電迴路8的總電流 〇 [0022] 一控制單元9，該控制單元9電性連接該第一保護電 驛4及該第二保護電驛5，接收該第一保護電驛4及該第二 保護電驛5傳送供電迴路8的電壓和電流訊號，該控制單 元9電性連接該總電流運算單元7，接收該總電流運算單 元7傳送的總電流訊號，該控制單元9電性連接該開關器1 及該支援開關6，經運算判斷控制開關器1及支援開關6之 動作，藉以達到控制兩供電迴路8的轉供電，該控制單元 9電性連接該電壓檢測器3，用以檢測兩供電迴路8的電源 是否同步。 [0023] 上述之第一保護電驛4、第二保護電驛5及總電流運 算單元7電性連接單一個電流檢測器2，即可達到同步檢 測供電迴路8的電流，不需再另增設檢測電流的元件，可 減少硬體設備投資的成本。 [0024] 請參照第2及3圖所示，本創作於轉供電前，控制單 元9需先確認兩供電迴路8的電源是否同步，及總電流運 算單元7檢測的總電流是否會造成單一供電迴路8的過載 ;本創作利用第一保護電驛4及第二保護電驛5，需均同 時提供供電迴路8之電壓狀況給控制單元9，以避免第一 保護電驛4或第二保護電驛5其一的電壓偵測模組故障， 造成控制單元9誤判供電迴路8發生停電，而截止開關器1 供電，造成下游負載81的停電損失。另，第一保護電驛4 和第二保護電驛5使用同一電流檢測器2檢測電流，控制 表單編號A0101 第7頁/共17頁 [0025]M416934 單元9只需接受到其一的電流訊號即可判別開關器1下游 側發生過電流故障，而禁止導通支援開關6的轉供電，提 高故障判斷的可靠度。 為說明兩供電迴路8之間的電源切換，請參照第2圖 所示，該控制單元9可由第一、第二保護電驛4、5提供的 電壓、電流檢測訊號，判斷故障是發生在開關器1的下游 側或開關器1的上游側，若故障發生於開關器1下游時， 則不可導通支援開關6切換另一供電迴路8來支援供電， 以避免因開關器1下游侧故障未排除，造成轉供電後全面 的供電失效之風險。若是供電迴路8之開關器1上游側供 電異常或供電設備故障，經控制單元9判斷後即執行截止 該開關器1，並確認開關器1已為截止狀態，始可導通支 援開關6由另一供電迴路8進行復電。 [0026] 請參照第2圖所示，本創作之總電流運算單元7檢測 兩供電迴路8的總電流並提供訊號給控制單元9，使控制 單元9於兩供電迴路8執行的轉供電前，即可先行判斷兩 供電迴路8的負載81用電是否超過供電設備的安全裕度， 以有效避免人員疏失，未注意供電迴路8潛在過載之危機 即進行切換造成負載81全面停電之情況。 [0027] 請參照第3、4、5及6圖所示，本創作之接地故障電 流檢知器21可依供電迴路8的供電設備需求設置，可提供 供電迴路8高感度的接地故障電流檢測。 【圖式簡單說明】 [0028] 第1圖：習知雙電源切換系統供電架構圖。 表單编號A0101 第8頁/共17頁 M416.934M416.934 V. New Description: [New Technology Field] [0001] The present invention relates to a power supply circuit, and more particularly to a power supply device with a switching power supply. [Prior Art] [0002] Please refer to Figure 1, the main power supply circuit 91 of the dual power supply switching system now only uses the protection power supply 95 to detect the voltage of the main power supply circuit 91 for the power supply determination. The voltage module of the single protection device 95 or the voltage sensor 951 fails, and the protection device 95 turns off the conduction of the switch 96 controlled by itself, causing the main power supply circuit 91 to fall into a false power failure; another dual power switching system There is also a function of switching the loop to power supply. When the main power supply circuit 91 stops supplying power, the secondary power supply circuit 92 supplies power, but if the short circuit fault occurs in the downstream of the main power supply circuit 91, the 'AC load of the road load 911 On the other hand, the protection power supply 95 itself is faulty, and it is too late to suppress the power supply. When the short-circuit fault is not removed, the power supply to the secondary power supply circuit 92 is switched, and the load 921 of the secondary power supply circuit 92 itself is also powered by the short-circuit fault. The failure causes the overall power supply system to generate a complete power outage. Therefore, the single protection power supply 95 cannot provide a dual power supply switching system to reliably judge the fault condition of the power supply circuit.[New Content] [0003] A dual-power safety switching device is designed to overcome the power supply switching system and transmit the detection voltage and current signals by a single protection power supply, that is, to judge the power supply of the circuit, which is easy to protect the power supply. The failure of the internal detection module or the output module causes the disadvantage of mis-switching or power failure. Form No. A0101 Page 3 of 17 [0004] M416934 [0005] [0007] [0008] [0008] For the purpose of the foregoing creation, the technical solution adopted by the present invention is to provide a dual power safety switching device, The dual power supply safety switching device comprises: two power supply circuits, wherein the power supply circuit is provided with a switch, and a current detector is disposed on the upstream side of the switch circuit, and the current detector is electrically connected with a first protection switch and a a second protection switch; a support switch that is a support switch that is output downstream of the switch in parallel with two power supply circuits; a control unit that electrically connects the first protection switch and the second protection switch, The control unit controls the electrical connection between the switch and the support switch. Further, the dual power safety switching device of the present invention further includes a total current computing unit electrically connected to the current detectors of the two power supply circuits, and the total current computing unit transmits the total current of the two power supply circuits. Signal to electrical connection of the control unit. Further, in the dual power safety switching device of the present invention, the second protection device is electrically connected to a voltage detector that detects the voltage downstream of the switch. Further, in the dual power supply safety switching device of the present invention, the ground fault current detector is further disposed upstream of the switch of the power supply circuit, and the ground fault current detector is electrically connected to the first protection power device. And the second protection power. Another technical solution of the present invention is to provide a dual power safety switching device. The dual power safety switching device includes: two power supply circuits, the power supply circuit is provided with a switch, and the switch circuit of the power supply circuit has a form number A0101. Page 4 of 17 [0009] M416.934 has a current detector on the swim side; a support switch is a support switch for the downstream output of the switch in parallel with two power supply circuits; a control unit that controls the electrical properties Connecting the switch and the support switch; a total current computing unit, the total current computing unit is electrically connected to the current detectors of the two power supply circuits, and the total current computing unit transmits the total current signals of the two power supply circuits to the electrical connection control unit. [0010] Another technical solution of the present invention, further, the dual power safety switching device of the present invention, wherein the current detector is electrically connected to a first protection power and a second protection power. [0011] Another technical solution of the present invention, further, the dual power safety switching device of the present invention, wherein the first protection power and the second protection power are transmitted to the control unit of the electrical connection. [0012] Another technical solution of the present invention, further, the dual power safety switching device of the present invention, wherein the second protection device is electrically connected to a voltage detector that detects a voltage downstream of the switch. [0013] Another technical solution of the present invention, further, the dual power safety switching device of the present invention, wherein a ground fault current detector is further disposed upstream of the switch of the power supply circuit, and the ground fault current check The device electrically connects the first protection power and the second protection power. [0014] Through the above technical solution, the present invention has at least the following advantages compared with the prior art: [0015] 1. The first protection power, the second protection power and the total current computing unit are connected to a single current detector. It saves equipment costs and can achieve synchronous detection of the current in the power supply loop. Form No. A0101 Page 5 of 17 M416934 [0016] 2. The first protection power and the second protection power of the creation provide control unit detection signals at the same time, which can avoid single protection power failure and cause power supply loop error. Switching and power failure. [0017] 3. The total current calculation unit of the creation can increase the power consumption of the two power supply circuits, and automatically determine whether the power supply equipment exceeds its own safety margin before the power supply is turned on, thereby avoiding the accident of full power failure caused by personnel loss. [Embodiment] [0018] Please refer to Figures 2 and 3, the dual power supply safety switching device of the present invention includes: [0019] Two power supply circuits 8 provided with a switch 1 for controlling Power supply circuit 8 is provided with a load bus bar 82 (AC Bus) connected to a plurality of loads 81 on the downstream side of the switch 1 of the power supply circuit 8, and a current detector is arranged on the upstream side of the switch 1 of the power supply circuit 8 2 and a ground fault current detector 21, the current detector 2 is electrically connected to a first protection switch 4 and a second protection switch 5, and the first protection switch 4 is electrically connected by a voltage detection The device 3 is connected to the upstream side voltage of the switch 1 of the power supply circuit 8, and the second protection switch 5 is connected to the load bus bar 82 (AC Bus) for detecting the power supply circuit 8 by an electrically connected voltage detector 3. The ground fault current detector 21 is electrically connected to the first protection battery 4 and the second protection battery 5 to provide a high-sensitivity ground fault current detection for the power supply circuit 8. [0020] A support switch 6 outputs a support switch 6 for the load busbar 82 (AC Bus) downstream of the switch 1 of the two power supply circuits 8 for parallel power supply switching between the two power supply circuits 8. Form No. A0101 Page 6 of 17 [0021] A total current operation unit 7, the total current operation unit 7 is electrically connected to the current detector 2, and the total current of the two power supply circuits 8 can be detected by this operation [0022] a control unit 9 electrically connected to the first protection device 4 and the second protection device 5, receiving the first protection device 4 and the second protection device 5 for transmitting the power supply circuit 8 The control unit 9 is electrically connected to the total current computing unit 7 and receives the total current signal transmitted by the total current computing unit 7. The control unit 9 is electrically connected to the switch 1 and the support switch 6. The operation determines the operation of the switch 1 and the support switch 6 to control the power supply of the two power supply circuits 8. The control unit 9 is electrically connected to the voltage detector 3 for detecting whether the power supplies of the two power supply circuits 8 are synchronized. [0023] The first protection electrode 4, the second protection device 5, and the total current calculation unit 7 are electrically connected to the single current detector 2, so that the current of the power supply circuit 8 can be synchronously detected, and no additional design is needed. Components that detect current reduce the cost of hardware equipment investment. [0024] Please refer to FIGS. 2 and 3, before the power supply is turned on, the control unit 9 needs to confirm whether the power supply of the two power supply circuits 8 is synchronized, and whether the total current detected by the total current operation unit 7 causes a single power supply. The overload of the circuit 8; the present use of the first protection device 4 and the second protection device 5, both need to provide the voltage status of the power supply circuit 8 to the control unit 9 to avoid the first protection device 4 or the second protection device故障5 One of the voltage detection modules is faulty, causing the control unit 9 to misjudge that the power supply circuit 8 has a power failure, and the power is turned off by the switch 1 to cause a power failure of the downstream load 81. In addition, the first protection device 4 and the second protection device 5 use the same current detector 2 to detect the current, control form number A0101, page 7 / page 17 [0025] M416934 unit 9 only needs to receive one of the current signals It is possible to determine that an overcurrent fault has occurred on the downstream side of the switch 1, and to prohibit the turn-on of the conduction support switch 6, thereby improving the reliability of the fault determination. To illustrate the power switching between the two power supply circuits 8, please refer to FIG. 2, the control unit 9 can be detected by the voltage and current detection signals provided by the first and second protection electrodes 4, 5 to determine that the fault occurs in the switch. On the downstream side of the device 1 or the upstream side of the switch 1, if the fault occurs downstream of the switch 1, the non-conducting support switch 6 switches the other power supply circuit 8 to support the power supply, so as to avoid the failure of the downstream side of the switch 1 , the risk of a complete power failure after the power supply. If the power supply on the upstream side of the switch 1 of the power supply circuit 8 is abnormal or the power supply device is faulty, the switch 1 is turned off after the control unit 9 determines, and it is confirmed that the switch 1 is in the off state, and the support switch 6 can be turned on by another The power supply circuit 8 performs a re-power. [0026] Referring to FIG. 2, the total current computing unit 7 of the present invention detects the total current of the two power supply circuits 8 and provides a signal to the control unit 9, so that the control unit 9 performs the power supply before the two power supply circuits 8 perform the power supply. It can be judged first whether the power consumption of the load 81 of the two power supply circuits 8 exceeds the safety margin of the power supply equipment, so as to effectively avoid personnel loss, and the crisis of potential overload of the power supply circuit 8 is not observed, that is, the load 81 is completely blackout. [0027] Please refer to the figures 3, 4, 5 and 6, the ground fault current detector 21 of the present invention can be set according to the power supply equipment requirement of the power supply circuit 8, and can provide the high-sensitivity ground fault current detection of the power supply circuit 8. . [Simple Description of the Drawings] [0028] Figure 1: A diagram of the power supply architecture of a conventional dual power switching system. Form No. A0101 Page 8 of 17 M416.934
[0029] 第2圖：本創作之雙電源安全切換電路供電架構圖。 [0030] 第3圖：本創作應用範例一圖。 [0031] 第4圖：本創作應用範例二圖。 [0032] 第5圖：本創作應用範例三圖。 [0033] 第6圖：本創作應用範例四圖。 【主要元件符號說明】 [0034] 1.開關器 2.電流檢測器 [0035] 21.接地故障電流檢知器 3.電壓檢測器 [0036] 4.第一保護電驛 5.第二保護電驛 [0037] 6.支援開關 7.總電流運算單元 [0038] 8.供電迴路 81.負載 [0039] 82.負載匯流排 9.控制單元 [0040] 91.主供電迴路 911.負載 [0041] 92.副供電迴路 921.負載 [0042] 95.保護電驛 9 51.電壓感測器 [0043] 96.開關器 表單編號A0101 第9頁/共17頁[0029] Figure 2: Power supply architecture diagram of the dual power supply safety switching circuit of the present invention. [0030] Figure 3: A diagram of a sample application of the present application. [0031] Figure 4: Example 2 of this creative application. [0032] Figure 5: Three examples of the application of this creation. [0033] Figure 6: Four diagrams of the application example of this creation. [Main component symbol description] [0034] 1. Switch 2. Current detector [0035] 21. Ground fault current detector 3. Voltage detector [0036] 4. First protection battery 5. Second protection battery驿[0037] 6. Support switch 7. Total current calculation unit [0038] 8. Power supply circuit 81. Load [0039] 82. Load busbar 9. Control unit [0040] 91. Main power supply circuit 911. Load [0041] 92. Sub-supply circuit 921. Load [0042] 95. Protection switch 9 51. Voltage sensor [0043] 96. Switch form number A0101 Page 9 of 17