TWM496762U - Surge current detection switch - Google Patents
Surge current detection switch Download PDFInfo
- Publication number
- TWM496762U TWM496762U TW103219001U TW103219001U TWM496762U TW M496762 U TWM496762 U TW M496762U TW 103219001 U TW103219001 U TW 103219001U TW 103219001 U TW103219001 U TW 103219001U TW M496762 U TWM496762 U TW M496762U
- Authority
- TW
- Taiwan
- Prior art keywords
- module
- power
- detecting
- surge
- control module
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
本新型是有關於一種開關,特別是指一種具有突波檢測功能的突波電流檢測開關。The present invention relates to a switch, and more particularly to a surge current detecting switch having a surge detecting function.
隨著生活水平的提高與科技產品的普及,人們所用的電器越來越多,例如電視機、冷氣機、冰箱、洗衣機、微波爐、電磁爐、除溼機、電暖器等家用電器越來越普遍。已知一般電器在通電瞬間會產生大電流,亦即為突波。一般來說,突波對電力線及供電設備是有害的,它容易造成供電設備的損壞及線路老化,所以要儘量設法避免或減小。而且許多開關或插座常使用繼電器作為電氣開關,這種突波對繼電器的傷害尤其明顯。With the improvement of living standards and the popularization of technology products, more and more electrical appliances are used. Household appliances such as TV sets, air conditioners, refrigerators, washing machines, microwave ovens, induction cookers, dehumidifiers, and electric heaters are becoming more and more popular. . It is known that a general electric appliance generates a large current at the moment of energization, that is, a surge. In general, the surge is harmful to the power line and the power supply equipment. It is easy to cause damage to the power supply equipment and aging of the line, so try to avoid or reduce it. Moreover, many switches or sockets often use relays as electrical switches, and such surges are particularly damaging to relays.
然而,目前市面上的開關或插座都沒有主動針對突波進行檢測的功能,無法檢知用電設備是否有過度的突波產生,這將對室內的用電安全帶來隱憂。另一方面,若專門安裝一個突波保護裝置,不僅成本高昂,還難於尋找到合適的安裝位置。因此,如何改善現有的開關或插座,以防止突波造成的損害,實為一重要課題。However, at present, switches or sockets on the market do not actively detect the glitch, and it is impossible to detect whether the power device has excessive glitch, which will bring hidden troubles to the indoor electrical safety. On the other hand, if a surge protection device is specifically installed, it is not only costly, but also difficult to find a suitable installation location. Therefore, how to improve the existing switch or socket to prevent damage caused by the surge is an important issue.
因此,本新型之目的,即在提供一種具有突波檢測功能,可提高使用安全性的突波電流檢測開關。Therefore, the object of the present invention is to provide a surge current detecting switch which has a surge detecting function and can improve the safety of use.
於是,本新型突波電流檢測開關,包含:一包括一電源輸出端口的基座、一電能檢測模組、一突波檢測模組,及一中央控制模組。該電能檢測模組設置於該基座,可檢測該電源輸出端口的電流而得到一檢測電流,並轉換成對應的電壓訊號。該突波檢測模組設置於該基座並電連接該電能檢測模組,該突波檢測模組包括一電壓放大輸出單元,以及一電連接該電壓放大輸出單元且儲存有一比較閥值的比較單元,該電壓放大輸出單元將該檢測電流轉換成的該電壓訊號放大而輸出一檢測值,該比較單元將該檢測值與該比較閥值比較並輸出一比較結果。該中央控制模組設置於該基座,並電連接該電能檢測模組及該突波檢測模組,該中央控制模組接收該突波檢測模組的該比較結果,並依據該比較結果控制該電源輸出端口的開關狀態。Therefore, the novel surge current detecting switch comprises: a base including a power output port, a power detecting module, a surge detecting module, and a central control module. The power detecting module is disposed on the base, and can detect a current of the power output port to obtain a detecting current, and convert the signal into a corresponding voltage signal. The surge detection module is disposed on the base and electrically connected to the power detection module, the surge detection module includes a voltage amplification output unit, and a comparison of electrically connecting the voltage amplification output unit and storing a comparison threshold And the voltage amplification output unit amplifies the voltage signal converted by the detection current to output a detection value, and the comparison unit compares the detection value with the comparison threshold value and outputs a comparison result. The central control module is disposed on the base and electrically connected to the power detecting module and the surge detecting module, wherein the central control module receives the comparison result of the surge detecting module, and controls according to the comparison result The switching state of the power output port.
本新型之功效:藉由該電能檢測模組與該突波檢測模組配合,具有突波檢測功能,而該中央控制模組可依據檢測比對結果控制該電源輸出端口的開關狀態,可於偵測到突波時控制該電源輸出端口斷電,進而可提高使用安全性。The function of the novel: the power detecting module cooperates with the surge detecting module to have a surge detecting function, and the central control module can control the switching state of the power output port according to the detection comparison result, When the surge is detected, the power output port is controlled to be powered off, thereby improving the safety of use.
1‧‧‧基座1‧‧‧Base
11‧‧‧前表面11‧‧‧ front surface
12‧‧‧電源輸入端口12‧‧‧Power input port
13‧‧‧電源輸出端口13‧‧‧Power output port
2‧‧‧電源管理模組2‧‧‧Power Management Module
3‧‧‧電能檢測模組3‧‧‧Power detection module
31‧‧‧電壓感測器31‧‧‧Voltage sensor
32‧‧‧電流感測器32‧‧‧ Current Sensor
33‧‧‧檢測晶片33‧‧‧Detection wafer
4‧‧‧突波檢測模組4‧‧‧ Surge detection module
41‧‧‧比較單元41‧‧‧Comparative unit
42‧‧‧電壓放大輸出單元42‧‧‧Voltage amplification output unit
5‧‧‧中央控制模組5‧‧‧Central Control Module
6‧‧‧開關控制模組6‧‧‧Switch Control Module
7‧‧‧無線通訊模組7‧‧‧Wireless communication module
8‧‧‧按鍵模組8‧‧‧Key Module
81‧‧‧按鍵81‧‧‧ button
9‧‧‧監控裝置9‧‧‧Monitor
本新型之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中:圖1是本新型突波電流檢測開關的一實施例的前視立 體圖;圖2是該實施例的一後視立體圖;圖3是該實施例之部分元件的功能方塊圖;及圖4是該實施例的電路設計示意圖。Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a front view of an embodiment of the novel surge current detecting switch. Figure 2 is a rear perspective view of the embodiment; Figure 3 is a functional block diagram of some of the components of the embodiment; and Figure 4 is a schematic diagram of the circuit design of the embodiment.
參閱圖1~4,本新型突波電流檢測開關之一實施例包含:一基座1、一電源管理模組2、一電能檢測模組3、一突波檢測模組4、一中央控制模組5、一開關控制模組6、一無線通訊模組7,以及一按鍵模組8。Referring to FIG. 1 to FIG. 4, an embodiment of the novel surge current detecting switch includes: a base 1, a power management module 2, a power detecting module 3, a surge detecting module 4, and a central control module. The group 5, a switch control module 6, a wireless communication module 7, and a button module 8.
該基座1為中空殼體結構,且該基座1包括一朝前並可供該按鍵模組8設置的前表面11,以及位於後側的一電源輸入端口12與一電源輸出端口13。該電源輸入端口12可接收自外部輸入之電源,並傳送給該電源輸出端口13,以提供電源給一圖未示之負載。The base 1 is a hollow housing structure, and the base 1 includes a front surface 11 facing forward and provided by the button module 8, and a power input port 12 and a power output port 13 on the rear side. . The power input port 12 can receive power from an external input and transmit it to the power output port 13 to provide power to a load not shown.
該電源管理模組2設置於該基座1內部,並電連接該電源輸入端口12以及該中央控制模組5。當自外部輸入之電源為交流電源時,該電源管理模組2可將該交流電源轉換成直流電源,並提供該直流電源給該電能檢測模組3、該突波檢測模組4、該中央控制模組5、該開關控制模組6,及該無線通訊模組7使用。The power management module 2 is disposed inside the base 1 and electrically connected to the power input port 12 and the central control module 5 . When the power input from the external power source is an AC power source, the power management module 2 can convert the AC power source into a DC power source, and provide the DC power source to the power detecting module 3, the surge detecting module 4, and the center. The control module 5, the switch control module 6, and the wireless communication module 7 are used.
該電能檢測模組3設置於該基座1內部,並包括一用於檢測該電源輸出端口13的電壓的電壓感測器31、一用於檢測該電源輸出端口13的電流而得到一檢測電流的電流感測器32,以及一電連接該電壓感測器31與該電流 感測器32的檢測晶片33。該電壓感測器31與該電流感測器32都串接在該電源輸入端口12與該電源輸出端口13的連接導線上,並分別將檢測得到的電壓數據與電流數據傳送到該檢測晶片33。該檢測晶片33依據該電壓感測器31與該電流感測器32的檢測結果計算得到該電源輸出端口13的電能數據,並將該電能數據傳送給該中央控制模組5。本實施例所述的電能數據主要是依據電壓感測器31、電流感測器32獲取的資訊所計算得到的電能、電功率等參數。The power detecting module 3 is disposed inside the susceptor 1 and includes a voltage sensor 31 for detecting the voltage of the power output port 13 and a current for detecting the power output port 13 to obtain a detecting current. Current sensor 32, and an electrical connection between the voltage sensor 31 and the current The wafer 32 of the sensor 32 is detected. The voltage sensor 31 and the current sensor 32 are serially connected to the connection line of the power input port 12 and the power output port 13, and respectively transmit the detected voltage data and current data to the detection chip 33. . The detection chip 33 calculates the power data of the power output port 13 according to the detection result of the voltage sensor 31 and the current sensor 32, and transmits the power data to the central control module 5. The electric energy data described in this embodiment is mainly based on the electric energy and electric power calculated by the information obtained by the voltage sensor 31 and the current sensor 32.
該突波檢測模組4設置於該基座1內部並電連接該電流感測器32。該突波檢測模組4包括一比較單元41,及一電連接該比較單元41與該電流感測器32的電壓放大輸出單元42。由於該電流感測器32會先將檢測得到的該檢測電流轉換成對應的電壓訊號,該電壓放大輸出單元42再把該檢測電流轉換成的該電壓訊號進行一定比例的放大,並輸出放大後的一檢測值提供給該比較單元41。藉由該電壓放大輸出單元42放大訊號後再輸出進行比較,可得到更精確的比對結果。The surge detecting module 4 is disposed inside the base 1 and electrically connected to the current sensor 32. The glitch detection module 4 includes a comparison unit 41 and a voltage amplification output unit 42 electrically connected to the comparison unit 41 and the current sensor 32. Since the current sensor 32 first converts the detected detection current into a corresponding voltage signal, the voltage amplification output unit 42 further amplifies the voltage signal converted by the detection current into a certain proportion, and outputs the amplified signal. A detection value is supplied to the comparison unit 41. By the voltage amplification output unit 42 amplifying the signal and then outputting for comparison, a more accurate comparison result can be obtained.
該比較單元41預設一比較閥值,該電壓放大輸出單元42輸出的該檢測值與這個預設的比較閥值進行比較,若該檢測值大於該閥值,則該比較單元41輸出高電壓準位(level)值;若該檢測值小於該閥值,則其會輸出低電壓準位值。該比較單元41輸出端電連接於該中央控制模組5,可以把一比較結果(亦即前述高電壓準位值或低電壓準位 值)傳送給該中央控制模組5。The comparison unit 41 presets a comparison threshold, and the detected value output by the voltage amplification output unit 42 is compared with the preset comparison threshold. If the detection value is greater than the threshold, the comparison unit 41 outputs a high voltage. A level value; if the detected value is less than the threshold, it outputs a low voltage level value. The output end of the comparison unit 41 is electrically connected to the central control module 5, and a comparison result (that is, the aforementioned high voltage level value or low voltage level) can be used. The value is transmitted to the central control module 5.
該中央控制模組5是一個微控制器(MCU),設置於該基座1內部,並電連接該電能檢測模組3及該突波檢測模組4。該中央控制模組5接收該突波檢測模組4的該比較結果,並依據該比較結果且透過該開關控制模組6而控制該電源輸出端口13的開關狀態。所述開關狀態是指控制該電源輸出端口13通電或斷電,從而控制該電源輸出端口13是否提供電源給該負載。The central control module 5 is a microcontroller (MCU) disposed inside the susceptor 1 and electrically connected to the power detecting module 3 and the glitch detecting module 4. The central control module 5 receives the comparison result of the surge detection module 4, and controls the switching state of the power output port 13 according to the comparison result and through the switch control module 6. The switch state refers to controlling the power output port 13 to be powered on or off, thereby controlling whether the power output port 13 provides power to the load.
本實施例之開關控制模組6是一繼電器。該開關控制模組6電連接該電源輸出端口13與該中央控制模組5,並能受該中央控制模組5控制以執行相應的電路開關動作。The switch control module 6 of this embodiment is a relay. The switch control module 6 is electrically connected to the power output port 13 and the central control module 5, and can be controlled by the central control module 5 to perform corresponding circuit switching actions.
該無線通訊模組7電連接該中央控制模組5,並可將該電能檢測模組3的檢測結果與該突波檢測模組4的該比較結果以無線通訊方式傳輸出去。具體來說,該無線通訊模組7是利用射頻(RF)通訊,可以與一監控裝置9無線訊號連接,因此該無線通訊模組7可將本新型的各項檢測結果傳送給該監控裝置9。該監控裝置9例如手機或電腦,用戶可透過該監控裝置9隨時監控本新型該開關之電壓、電流、電能、電功率等資訊,以及監控突波檢測結果與開關狀態。The wireless communication module 7 is electrically connected to the central control module 5, and can transmit the detection result of the power detection module 3 and the comparison result of the surge detection module 4 in a wireless communication manner. Specifically, the wireless communication module 7 can communicate with a monitoring device 9 by using radio frequency (RF) communication, so the wireless communication module 7 can transmit the detection results of the new model to the monitoring device 9 . The monitoring device 9 is, for example, a mobile phone or a computer, through which the user can monitor the voltage, current, electric energy, electric power and the like of the switch, and monitor the surge detection result and the switch state.
該按鍵模組8包括至少一自該基座1的前表面11朝前突出的按鍵81,該按鍵模組8可被按壓或利用感應方式控制該電源輸出端口13的開關狀態,也可以藉由該按 鍵模組8控制該無線通訊模組7之啟閉,使該無線通訊模組7開啟後能與該監控裝置9進行無線訊號傳送。此外,本新型也可以設置數個LED燈(圖未示),可用於顯示本新型偵測突波之結果,例如當偵測到突波時可顯示紅燈,在一般狀態下則不發光。此外,LED燈也可以於該無線通訊模組7開啟無線通訊功能時發光,以作為指示功能。The button module 8 includes at least one button 81 protruding forward from the front surface 11 of the base 1. The button module 8 can be pressed or inductively controlled to control the switching state of the power output port 13 or by The button The key module 8 controls the opening and closing of the wireless communication module 7, so that the wireless communication module 7 can be wirelessly transmitted with the monitoring device 9 after being turned on. In addition, the present invention can also be provided with a plurality of LED lights (not shown), which can be used to display the result of detecting the glitch of the present invention, for example, a red light can be displayed when a glitch is detected, and not illuminate under normal conditions. In addition, the LED light can also be illuminated when the wireless communication module 7 turns on the wireless communication function as an indication function.
本新型通電使用時,該電源輸入端口12與該電源輸出端口13可透過該開關控制模組6導通,以將電源供應給負載使用。該電能檢測模組3可持續偵測該電源輸出端口13的電流而得到該檢測電流並轉換成電壓訊號,該突波檢測模組4進而將該電壓訊號放大並輸出該檢測值,再將該檢測值與該比較閥值進行比較。該比較閥值之設定,實際上是以本新型該開關所能承受的突波大小而定。當該檢測值大於或等於該比較閥值時,表示有突波產生,該中央控制模組5就控制該開關控制模組6斷路,使該電源輸出端口13與電路間斷開連接關係而斷電,如此亦能停止供電給該負載,因此可避免過大的突波電流造成該開關控制模組6、其他元件以及該負載之傷害。When the power is used, the power input port 12 and the power output port 13 can be turned on through the switch control module 6 to supply power to the load. The power detecting module 3 can continuously detect the current of the power output port 13 to obtain the detection current and convert it into a voltage signal, and the surge detecting module 4 further amplifies the voltage signal and outputs the detected value, and then The detected value is compared to the comparison threshold. The setting of the comparison threshold is actually determined by the magnitude of the surge that the switch of the present invention can withstand. When the detected value is greater than or equal to the comparison threshold, indicating that a surge occurs, the central control module 5 controls the switch control module 6 to open, and the power output port 13 is disconnected from the circuit and is powered off. Therefore, the power supply can be stopped to the load, so that excessive surge current can be prevented from causing damage to the switch control module 6, other components, and the load.
當該檢測值小於該比較閥值時,表示工作電流正常,且沒有過大突波產生,該中央控制模組5控制該開關控制模組6導通,使該電源輸出端口13通電,以持續提供電源給該負載。所述使該電源輸出端口13通電,主要是指本新型於開啟而通電使用後,若偵測到該檢測值小於該比較閥值時,則可以繼續正常供電,此時不需進行任何開 關控制,使該電源輸出端口13繼續維持通電狀態即可,並能持續供電給該負載。舉例來說,本新型可檢測的突波大小之閥值可為10安培(A)~500安培中的任一數值。When the detected value is less than the comparison threshold, it indicates that the working current is normal, and no excessive surge is generated, and the central control module 5 controls the switch control module 6 to be turned on, so that the power output port 13 is energized to continuously provide power. Give the load. The power supply output port 13 is energized, which mainly means that after the new type is turned on and powered on, if the detected value is less than the comparison threshold, the normal power supply can be continued, and no power is required to be opened at this time. The control is turned off so that the power output port 13 continues to be powered on, and power can be continuously supplied to the load. For example, the novel detectable surge size threshold can be any of 10 amps (A) to 500 amps.
本新型該開關可以與延長線插座整合在一起,也可以設置在建築物壁面上作為開關使用,以藉由本新型之突波偵測功能及自動控制開關啟閉的功能,達到保護開關與負載之效果。The switch can be integrated with the extension cable socket or can be arranged on the wall of the building as a switch to protect the switch and the load by the surge detection function of the present invention and the function of automatically controlling the opening and closing of the switch. effect.
綜上所述,藉由該電能檢測模組3與該突波檢測模組4配合,具有突波檢測功能,而該中央控制模組5則可依據檢測比對結果控制該電源輸出端口13的開關狀態。將本新型此種帶有突波檢測功能的智慧型開關用於電器控制中,不僅可以保護開關,還可以讓用戶知道所用電器的電源品質,並於檢測到有害的突波時可以主動關閉輸出電源,從而確保用電安全。而且更一步地,該無線通訊模組7可將本新型的各項用電資訊與檢測結果隨時無線傳送給用戶,使用戶能隨時掌握開關狀態與家中電器用電狀況,可實現遠端監控之便利、優質的高品質生活。In summary, the power detecting module 3 cooperates with the glitch detecting module 4 to have a glitch detecting function, and the central control module 5 can control the power output port 13 according to the detection comparison result. switch status. The intelligent switch with the surge detection function is used in the electrical control, which not only protects the switch, but also allows the user to know the power quality of the electrical appliance used, and can actively turn off the output when detecting a harmful surge. Power supply to ensure safe use of electricity. Moreover, the wireless communication module 7 can wirelessly transmit the various power consumption information and detection results of the new type to the user at any time, so that the user can grasp the switch state and the electrical status of the home appliance at any time, and can realize remote monitoring. Convenient, high quality and high quality of life.
惟以上所述者,僅為本新型之實施例而已,當不能以此限定本新型實施之範圍,即大凡依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本新型專利涵蓋之範圍內。However, the above description is only for the embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the present patent application scope and the contents of the patent specification are still It is within the scope of this new patent.
12‧‧‧電源輸入端口12‧‧‧Power input port
13‧‧‧電源輸出端口13‧‧‧Power output port
2‧‧‧電源管理模組2‧‧‧Power Management Module
3‧‧‧電能檢測模組3‧‧‧Power detection module
31‧‧‧電壓感測器31‧‧‧Voltage sensor
32‧‧‧電流感測器32‧‧‧ Current Sensor
33‧‧‧檢測晶片33‧‧‧Detection wafer
4‧‧‧突波檢測模組4‧‧‧ Surge detection module
41‧‧‧比較單元41‧‧‧Comparative unit
42‧‧‧電壓放大輸出單元42‧‧‧Voltage amplification output unit
5‧‧‧中央控制模組5‧‧‧Central Control Module
6‧‧‧開關控制模組6‧‧‧Switch Control Module
7‧‧‧無線通訊模組7‧‧‧Wireless communication module
8‧‧‧按鍵模組8‧‧‧Key Module
81‧‧‧按鍵81‧‧‧ button
9‧‧‧監控裝置9‧‧‧Monitor
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW103219001U TWM496762U (en) | 2014-10-27 | 2014-10-27 | Surge current detection switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW103219001U TWM496762U (en) | 2014-10-27 | 2014-10-27 | Surge current detection switch |
Publications (1)
Publication Number | Publication Date |
---|---|
TWM496762U true TWM496762U (en) | 2015-03-01 |
Family
ID=53187346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW103219001U TWM496762U (en) | 2014-10-27 | 2014-10-27 | Surge current detection switch |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWM496762U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI645278B (en) * | 2017-05-19 | 2018-12-21 | 碩天科技股份有限公司 | Adapter |
TWI698061B (en) * | 2018-02-23 | 2020-07-01 | 日商歐姆龍股份有限公司 | Arc discharge detection device |
-
2014
- 2014-10-27 TW TW103219001U patent/TWM496762U/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI645278B (en) * | 2017-05-19 | 2018-12-21 | 碩天科技股份有限公司 | Adapter |
US11165276B2 (en) | 2017-05-19 | 2021-11-02 | Cyber Power Systems, Inc. | Adapter |
TWI698061B (en) * | 2018-02-23 | 2020-07-01 | 日商歐姆龍股份有限公司 | Arc discharge detection device |
US11313907B2 (en) | 2018-02-23 | 2022-04-26 | Omron Corporation | Arc discharge detection device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100912004B1 (en) | Multi-tab for cutting off the standby-power and method for cutting off the standby-power using the multi-tab | |
CN205485532U (en) | Circuit intelligent management system | |
CA2930971C (en) | Sensor | |
CN202601991U (en) | Wirelessly-controlled multifunctional power supply patch board | |
KR100980626B1 (en) | Adaptive multi-tab and method for cutting off the over-power and standby-power and method for cutting off the standby-power | |
KR101843820B1 (en) | Smart multitap and smart multitap system using thereof | |
CN203119224U (en) | Multifunctional remote-control patch board | |
CN101819417A (en) | Energy-saving monitoring socket | |
CN203707489U (en) | Intelligent energy-saving socket | |
CN109309991B (en) | Control method, control device and control system | |
TW201914195A (en) | Adapter and adapter module having the same | |
KR100970843B1 (en) | Green consent for adaptively setting power level | |
KR20130042933A (en) | Socket for breaking stand-by power, electric leakage and overload | |
TWM398237U (en) | Intelligent socket apparatus | |
CN202583359U (en) | Start-up and shut-down detecting system of household appliances | |
CN107479435A (en) | A kind of smart jack control system | |
TWM496762U (en) | Surge current detection switch | |
CN105680256A (en) | Intelligent socket | |
WO2007136213A1 (en) | Electric outlet device | |
TW201448401A (en) | Intelligent household electricity monitoring system | |
TWI538332B (en) | Surge current detection switch | |
CN203722007U (en) | Energy-saving safety socket | |
US20110266889A1 (en) | Cost effective energy saving device | |
CN204179634U (en) | Burst current sense switch | |
WO2018157360A1 (en) | Socket having wireless control function |