201145004 六、發明說明： 【發明所屬之技術領域】 本發明係與斷電裝置有關，特別是指—種電器之斷電 裝置。 【先前技術】 -般各種電器在不使用時都是將主電源關閉，使其呈關機 狀態’藉以節省電源，然而，為了讓遙控器或觸控開關可隨時 φ 對處於關機狀態的電器進行開機作業，因此該電器並未完全斷 電’而是消耗有小部分的待機電源，而此待機電源仍是一種能 源的浪費。最直接的做法係將該電器插頭拔除，以完全斷絕電 器所消耗的電源，然而’此作法於實際情形仍具有下述需立即 — 改善之缺陷： • 賴該fli在錢㈣將其插職齡電雜座得以避 免待機電源的浪費’但是當該電^在使用時，必縣該電器的 • 插頭重新插置於電源插座，該電器使用後又必須將其插頭拔離 於電源插座，如此反覆_、拔插頭，可能使插頭與電源插座 接觸不良、鬆動，反而容易提高耗電量，且升高溫度、增加電 線走火的風險，特別是耗電量大的電器，容易在插、拔插頭時 產生火化’錢反覆啟動恐損害的使用壽命。 據此，如何能開發出-種電器之斷f裝置可解決上述的 缺陷’即為本案發明的動機。 3 201145004 【發明内容】 本發明之目的在於提供一種電器之斷電裝置其主要 檢測負載的電流變化並自動判讀，而進行該負載斷電與 否’因而節省電器產品待機電能消耗或避免反覆插拔該負 載插頭所造成的危險以及損害。 緣是，為了達成前述目的，依據本發明所提供之一種 電器之斷電裝置’適用電性連接市電電源與賴之間，該 斷電裝置包含有：-信號取得單元，係電性連接該負載， 用以制該貞載的電流而得-交流電壓信號，並將該交流 電壓信號放大；-整流濾、波單元，係電性連接該信號取得 單元’用以將放大後的交流電壓信號整流紐成直流電壓 信號；-受控斷路單it ’其具有—電性串接於該負載且使 該負載與該市電電料通或斷路的受控開關以及—控制該 受控開關導通或斷路的控制端；一決策單元，其具有一電 性連接該整流濾波單元的類比/數位轉換器以及一透過一驅 動單元與該文控斷路單元控制端電性連接的驅動端，該決策單 兀接收到該整流濾波單元之直流電壓信號後，透過該類比/數 位轉換器轉換為數位信號後，自動判斷及紀錄該負載的電流， 同時對該電流變化狀態以及内部所設定之基準值分別進行 比較運算，藉以驅動該受控斷路單元的受控開關導通或斷 路；一電源供應單元，其電性連接該市電電源與負载之間， 提供上述各單元所需電源；一啟動單元，其電性連接於該電 4 201145004 源供應單元，用以控制該受控斷路單元斷路後導通。 較佳的，該啟動單元啟動後，利用自鎖方式使該受控斷 路單元的控制端保持導通。 較佳的，該決策單元偵測到無負載或負載處於待機狀 態時，該決策單元驅動該受控斯路單元的受控__。 較佳的，該決策單元偵測無負載之-種的方法為該決 策單元所測得該負載的電流在一預設時間内均小於預設基 • 轉時，該決策單元驅動該受控斷路單元的受控開關斷 較佳的，該決策單元偵測負載處於待機狀態之一種的 方法為該決策單元持續對該負載的電流取最後偵測之一段 時間的電流平均量，並判斷該電流的平均量是否在設定時 . 間内呈遞減式變化，如是，該決策單元驅動該受控斷路單 - 元的受控開關斷路。 較佳的，該決策單元偵測負載處於待機狀態之一種的 • 方法為該決策單元持續偵測該負載的電流是否在一預設時 間内均低於一預設比例值，如是，該決策單元驅動該受控 斷路單元的受控開關斷路。 有關本發明為達成上述目的，所採用之技術、手段及其他 之功效’兹舉二較佳可行實施例並配合圖式詳細說明如后。 '【實施方式】 參閱第1、2圖，本發明第一實施例所提供的一種電器之 斷電裝置’適用電性連接市電電源_u與負載12之間，該 201145004 斷電裝置主要係由—信號取得單元2卜m皮單元 23、欠控斷路單元24、一決策單元26、一電源供應單元 27以及一啟動單元28所組成，其中： 該信號取得單元21，係電性連接該負載12，用以侧 該負載12職流而得一交流電壓信號，並同時將該交流電 壓㈣放大；該信號取得單元21的彳貞測部分是由比流器 21卜電阻212與齊納二極體213所組成的，該比流器211感 測該負載12的電流並轉換為電壓信號，電阻212絲調整比 流器211❸感測解析度，該齊納二極體213為限壓保護之用。 該整流遽波單元23，係電性連接該該信號取得單元 21，用以將放大後的交流電壓信號整流成直流電壓信號； 因為該信號取得單元21所取得的交流電壓信號為交流形 式，因此須經㈣整流濾波單元23 _交流電壓信號整流 滤波成直流形式，以當作該決策單元26的域輸入源。 該受控斷路單元24，其具有一電性串接於該負載12 立使該負m 12與師電電源u導通或斷路的受控開關 241以及一控制該受控開關241 #通或斷路的控制端242; 該受控斷路單元24為-繼電器（Realy)，該受控開關241 為該繼電器的接點，本實施例係舉常開接點，該控制端淡 為繼電器的線圈。 該決策單元26’其具有—電性連接該整流餘單元μ 的類比/數位轉換謂以及—透過一驅動單元撕與該受控 201145004 斷路單元24控制端242電性連接的驅動端263，其中該類比/ 數位轉換器261轉換為數位信號再經決策判斷後，透過該驅動 單元262與該受控斷路單元24控制端242電性連接的驅動端 263;該決策單元26接收到該直流電壓信號後自動判斷及紀錄 該負載12的電流’同時對該電流以及内部所設定之決策進 行比較運算，藉以驅動該受控斷路單元24的受控開關241 導通或斷路；而該決.策利用固定基準值作.無載判斷，以及 # 隨著不同負載12於待機狀態的電流而改變； 當該決策單元26所測得的該負載12的電流在一預設 時間内均小於預設基準值時，該決策單元26驅動該受控斷 路單元24的受控開關241斷路，該決策單元26所測得的 * 電流大於預設基準值時，亦再持續對該負载的電流取最後 偵測之一段時間的電流平均量，並判斷該電流的平均量是 否在設定時間内呈遞減式變化來進行該受控開關241的導 通或斷路。 該電源供應單元27，其電性連接該市電電源丨丨與負 載.12之間’提供上述各單元所需電源。 該啟動單元28，其電性連接於該電源供應單元27，用 以控制該受控斷路單元24斷路後導通；該啟動單元28含 一習知的電性自鎖機制，當啟動後，電性自鎖機制維持受 控斷路單7G 24導通’且該自鎖機制所需之電源係來自於該 電源供應單元27。 201145004 以上所述即為本發明第〜 組態說明 說明。 丨各主要構件之結構及其 至於本發明第一實施例 閱第2、3圖。 乍動方式及其功效說明如下，參 ‘該啟動單元28啟動德 而將__成私料元27則導通， 流遽波單元23、受控斷路單^礼號取传早7^ 2卜整 源。 峪早兀24以及決策單元26所需電 該電源供應單元27導诵沾内士 健動單it 絲單元26係透過 動单疋262使該蚀斷路單元24的控制端242保持導 通，形成自保持電路，同時讓該市電電源u、負載^與 本發明各單元之間保持電性導通。 、 此時’該決策單元26則接收該整流遽波單元23的直 流電壓信號，而自動判斷及紀錄該負載12的電流，亦即判 斷負載12的電流是否小於該決策單元％内部所設定之基 準值，而其判斷結果有二： 其一、當該決策單元26所測得的電流大於内部所設定 之基準值時（即負載12呈運轉狀態）：再持續對該負載12 的電流取最後侧之1時_電流平均量，並判斷該電 :的平均量是否在設定時_呈遞減式變化，如是，則表 喊負载12由呈運轉狀態轉變成待機狀態，且藉由所設定 的時間即可決定出該負載12在呈待機的時間，此時，該決 201145004 策單兀26即透過該驅動單元262而驅動該受控斷路單元24 的文控開關241斷路，使該市電電源u與負載12之間呈 斷路狀態’同時讓該電源供應單元27不再供電；如否，則 表不該負载12仍處於運轉狀態，此時，該決策單元26則 持續判斷貞载12的電流是否小於該決策單元26内部所設 定之基準值。 其一、當該決策單元26所測得的電流小於内部所設定 之基準值時（即負載12呈待機狀態）：再進行判斷該負載 12的電流在—預設時間内是否均小於該決策單元26内部 所没定的基準值’如是，則表示該負冑12仍處於待機狀 態’此時’該決策單元26即透過該驅動單元262而驅動該 文控斷路單元24的受控開關241斷路，使該市電電源11 與負載12之間呈斷路狀態，同時讓該電源供應單元27不 再供電；如否，則表示該負載12由呈待機狀態轉變成運轉 狀態，此時，則對該負載12的電流取最後偵測之一段時間 的電流平均量，並判斷該電流的平均量是否在設定時間内 呈遞減式變化，而此判斷方式與上述相同故不再贅述。 疋以，本發明藉由該決策單元26得以自動記錄以及檢 測該負載12的電流變化’而進行該負載a斷電與否，除 了達到節月έ的效S之外，更確實達到節省電器產品待機電 月b4耗或避免反覆插拔該負載12插頭所造成的危險以及 損害的目的。當然，若要使該負載12重新啟動，僅需按下 201145004 該啟動單元28即可。 參閱第4圖，本發明第二實施例所提供的一種電器之斷 電裝置’由於其組態、判斷方式與功效同於第一實施例故 不再贅述’僅差別在該決策單元26的判斷方式，其說明如 當該決策單元26所測得的電流大於内部所設定之基準 值時（即負載12呈運轉狀態）：再持續偵測該負載12的電 流是否在一預設時間内均低於一預設比例值，如是，則表 示該負載12由呈運轉狀態轉變成待機狀態，且藉由所預設 的時間即可決定出該負載12轉換成待機的時間，此時，該 決策早元26即透過該驅動卓元262而驅動該受控斷路單元 24的受控開關241斷路’使該市電電源11與負載12之間 呈斷路狀態，同時讓該電源供應單元27不再供電；如否， 則表示該負載12仍處於運轉狀態，此時，該決策單元26 則持續判斷負載12的電流是否小於該決策單元26内部所 設定之基準值。 綜上所述，此二實施例及圖示僅為本發明之較佳實施例而 已，當不能以之限定本發明實施之範圍，即大凡依本發明申請 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 圍内。 201145004 【圖式簡單說明】 第1圖係本發明的方塊圖。 第2圖係本發明的電路圖。 第3圖係本發明第一實施例的流程圖。 第4圖係本發明第二實施例的流程圖。201145004 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a power-off device, and more particularly to a power-off device of an electric appliance. [Prior Art] - All kinds of appliances are turned off when they are not in use, so that they are turned off to save power. However, in order to allow the remote control or touch switch to turn on the appliance in the off state at any time. The operation, so the appliance is not completely powered off, but consumes a small portion of the standby power supply, which is still a waste of energy. The most straightforward approach is to remove the electrical plug to completely sever the power consumed by the appliance. However, this practice still has the following immediate-improvement defects: • The lili is put in the money (4) The electric miscellaneous seat can avoid the waste of the standby power supply. But when the electric device is in use, the plug of the electric appliance of the county must be reinserted into the power socket. After the electric appliance is used, the plug must be pulled out of the power socket. _, pull the plug, may make the plug and the power socket contact bad, loose, but easy to increase power consumption, and increase the temperature, increase the risk of wire fire, especially the power-hungry electrical appliances, easy to plug in, pull the plug Produce cremation 'money repeatedly to start the life of the damage. Accordingly, how to develop a device that can solve the above-mentioned defects is the motivation of the invention. 3 201145004 SUMMARY OF THE INVENTION An object of the present invention is to provide a power-off device for an electrical appliance that mainly detects a change in current of a load and automatically interprets it, and performs power-off of the load, thereby saving standby power consumption of the electrical product or avoiding repeated insertion and removal. The danger and damage caused by the load plug. Therefore, in order to achieve the above object, an electrical disconnecting device of an electric appliance according to the present invention is adapted to be electrically connected between a mains power supply and a battery, and the power-off device includes: a signal acquisition unit electrically connected to the load , for generating the current of the load, the AC voltage signal is amplified, and the AC voltage signal is amplified; the rectifier filter and the wave unit are electrically connected to the signal acquisition unit for rectifying the amplified AC voltage signal. a DC voltage signal; a controlled circuit breaker 'it' having a controlled switch electrically connected to the load and causing the load to be connected to or disconnected from the utility electric power and - controlling the controlled switch to be turned on or off a control unit, comprising: an analog/digital converter electrically connected to the rectifying and filtering unit; and a driving end electrically connected to the control end of the text control breaking unit through a driving unit, the decision unit is received After the DC voltage signal of the rectifying and filtering unit is converted into a digital signal by the analog/digital converter, the current of the load is automatically determined and recorded, and the current is simultaneously The change state and the reference value set internally are respectively compared to drive the controlled switch of the controlled disconnect unit to be turned on or off; a power supply unit electrically connected between the mains power source and the load, and the above units are provided A power supply is required; a start-up unit electrically connected to the power supply unit 4 201145004 for controlling the conduction of the controlled circuit breaker unit after the circuit breaker is disconnected. Preferably, after the starting unit is started, the control end of the controlled disconnecting unit is kept conductive by using a self-locking manner. Preferably, when the decision unit detects no load or the load is in the standby state, the decision unit drives the controlled __ of the controlled channel unit. Preferably, the method for detecting the no load is that the decision unit drives the controlled disconnection when the current measured by the decision unit is less than the preset base in a predetermined time. Preferably, the controlled switch of the unit is broken, and the method for detecting that the load is in a standby state is that the decision unit continues to take the current average amount of the last detected period of the current of the load, and determines the current. Whether the average amount is decremental in the set time, if so, the decision unit drives the controlled switch open circuit of the controlled circuit breaker. Preferably, the determining unit detects that the load is in a standby state. The method is: the determining unit continuously detects whether the current of the load is lower than a preset ratio value within a preset time, and if so, the decision unit The controlled switch that drives the controlled disconnect unit is open. The present invention has been described with respect to the preferred embodiments of the present invention in order to achieve the above objects. [Embodiment] Referring to Figures 1 and 2, a power-off device of an electric appliance provided by the first embodiment of the present invention is electrically connected between a mains power source _u and a load 12, and the 201145004 power-off device is mainly composed of a signal acquisition unit 2, an under-control unit 24, a decision unit 26, a power supply unit 27, and a start-up unit 28, wherein: the signal acquisition unit 21 is electrically connected to the load 12 The AC voltage signal is obtained by the side load of the load 12, and the AC voltage (4) is amplified at the same time; the measured portion of the signal acquisition unit 21 is composed of the current comparator 21 and the Zener diode 213. The current comparator 211 senses the current of the load 12 and converts it into a voltage signal, and the resistor 212 adjusts the ratio of the comparator 211 ❸. The Zener diode 213 is used for voltage limiting protection. The rectifying chopper unit 23 is electrically connected to the signal obtaining unit 21 for rectifying the amplified AC voltage signal into a DC voltage signal; since the AC voltage signal obtained by the signal acquiring unit 21 is in an AC form, The rectification filtering unit 23 _ AC voltage signal is rectified and filtered into a DC form to be regarded as a domain input source of the decision unit 26 . The controlled disconnecting unit 24 has a controlled switch 241 electrically connected in series with the load 12 to cause the negative m 12 to be turned on or off with the electric power source u, and a control for the controlled switch 241# to open or open. The control terminal 242; the controlled disconnecting unit 24 is a relay (Realy), and the controlled switch 241 is a contact of the relay. In this embodiment, the normally open contact is used, and the control terminal is lightly a coil of the relay. The decision unit 26' has an analog/digital conversion term electrically connected to the rectifying residual unit μ and a driving end 263 electrically connected to the control terminal 242 of the controlled 201145004 disconnecting unit 24 through a driving unit, wherein the After the analog/digital converter 261 converts the digital signal into a digital signal and then determines the decision, the driving terminal 262 is electrically connected to the control terminal 242 of the controlled disconnecting unit 24 through the driving unit 262; after receiving the DC voltage signal, the determining unit 26 receives the DC voltage signal. Automatically judging and recording the current of the load 12 while simultaneously comparing the current and the internally set decision, thereby driving the controlled switch 241 of the controlled disconnect unit 24 to be turned on or off; and the decision uses a fixed reference value The no-load judgment, and # vary with the current of the different load 12 in the standby state; when the current of the load 12 measured by the decision unit 26 is less than the preset reference value within a preset time, the The decision unit 26 drives the controlled switch 241 of the controlled disconnect unit 24 to open. When the current measured by the decision unit 26 is greater than the preset reference value, the load is continued. The current is taken as the average amount of current during the last detected period, and it is judged whether the average amount of the current is decrementally changed within a set time to perform conduction or disconnection of the controlled switch 241. The power supply unit 27 is electrically connected between the mains power supply and the load .12 to provide the power required for each of the above units. The starting unit 28 is electrically connected to the power supply unit 27 for controlling the controlled disconnecting unit 24 to be turned on after being disconnected; the starting unit 28 includes a conventional electrical self-locking mechanism, and when activated, the electrical The self-locking mechanism maintains the controlled circuit breaker 7G 24 conducting ' and the power required for the self-locking mechanism is from the power supply unit 27. 201145004 The above is the description of the first configuration of the invention. The structure of each of the main members and the first embodiment of the present invention are as shown in Figs. The method of swaying and its function are described as follows. Refer to the 'starting unit 28 to start the German and turn the __ into the private element 27 to turn on, the flow chopping unit 23, the controlled disconnection unit ^ the ritual number is passed early 7^ 2 source. The power supply unit 27 and the control unit 26 are required to conduct the power supply unit 27, and the control unit 242 of the eclipse breaking unit 24 is kept conductive to form a self-holding. The circuit maintains electrical conduction between the mains power supply u, the load, and the units of the present invention. At this time, the decision unit 26 receives the DC voltage signal of the rectification chopper unit 23, and automatically determines and records the current of the load 12, that is, whether the current of the load 12 is less than the reference set in the decision unit%. Value, and the result of the judgment is two: First, when the current measured by the decision unit 26 is greater than the internally set reference value (ie, the load 12 is in an operating state): the current of the load 12 is continuously continued. 1 time _ current average amount, and determine whether the average amount of the electricity: _ is decreasing when set, if so, the load 12 is changed from the running state to the standby state, and by the set time It can be determined that the load 12 is in the standby time. At this time, the decision board 26 drives the text switch 241 of the controlled disconnect unit 24 to be disconnected through the driving unit 262 to make the mains power supply u and the load. 12 is in an open state 'while the power supply unit 27 is no longer powered; if not, the load 12 is still in operation, at this time, the decision unit 26 continues to determine the current of the load 12 No decision is less than the internal unit 26 set the reference value. First, when the current measured by the decision unit 26 is less than the internally set reference value (ie, the load 12 is in a standby state): determining whether the current of the load 12 is less than the decision unit in the preset time The internally determined reference value 'if YES' indicates that the negative 胄 12 is still in the standby state. At this time, the decision unit 26 drives the controlled switch 241 of the gram-switching unit 24 to be disconnected through the driving unit 262. The power supply 11 and the load 12 are disconnected, and the power supply unit 27 is no longer powered; if not, the load 12 is changed from the standby state to the operating state, and at this time, the load 12 is The current of the current is taken as the average amount of the current during the last detection period, and it is determined whether the average amount of the current is in a decreasing manner within a set time, and the determination manner is the same as the above, and therefore will not be described again. Therefore, the present invention enables the load a to be powered off by the automatic decision of the decision unit 26 and the detection of the current change of the load 12, and in addition to achieving the effect of saving the moon, it is indeed safer to save electrical products. Standby power month b4 consumes or avoids the danger caused by the plugging and unplugging of the load 12 plug and the purpose of damage. Of course, to restart the load 12, simply press the start unit 28 of 201145004. Referring to FIG. 4, a power-off device of an electric appliance according to a second embodiment of the present invention is not described in the judgment of the decision unit 26 because its configuration, judgment mode, and efficiency are the same as those of the first embodiment. The method is as follows: when the current measured by the decision unit 26 is greater than the internally set reference value (ie, the load 12 is in an operating state): whether the current of the load 12 is continuously detected is low for a preset time. In a preset ratio value, if yes, it indicates that the load 12 is changed from the running state to the standby state, and the preset time can determine the time when the load 12 is converted into standby. At this time, the decision is early. The element 26 drives the controlled switch 241 of the controlled disconnect unit 24 to open the drive unit 262 to open the state between the mains power supply 11 and the load 12, while allowing the power supply unit 27 to no longer supply power; No, it indicates that the load 12 is still in operation. At this time, the decision unit 26 continuously determines whether the current of the load 12 is less than a reference value set inside the decision unit 26. In the above, the two embodiments and the illustrations are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equal changes and modifications made by the scope of the patent application of the present invention are It should be within the scope of the patent of the present invention. 201145004 [Simplified description of the drawings] Fig. 1 is a block diagram of the present invention. Figure 2 is a circuit diagram of the present invention. Figure 3 is a flow chart of the first embodiment of the present invention. Figure 4 is a flow chart of a second embodiment of the present invention.
【主要元件符號說明】 市電電源11 信號取得單元21 電阻212 整流濾波單元23 受控斷路單元24 控制端242 決策單元26 驅動單元262 電源供應單元27 啟動單元28 負載12 比流器211 齊納二極體213 受控開關241 類比/數位轉換器261 驅動端263[Main component symbol description] Mains power supply 11 Signal acquisition unit 21 Resistor 212 Rectifier filter unit 23 Controlled circuit breaker unit 24 Control terminal 242 Decision unit 26 Drive unit 262 Power supply unit 27 Start unit 28 Load 12 Comparator 211 Zener diode Body 213 controlled switch 241 analog/digital converter 261 drive 263