CN218161804U - Single-live-wire power taking device - Google Patents
Single-live-wire power taking device Download PDFInfo
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- CN218161804U CN218161804U CN202222618719.4U CN202222618719U CN218161804U CN 218161804 U CN218161804 U CN 218161804U CN 202222618719 U CN202222618719 U CN 202222618719U CN 218161804 U CN218161804 U CN 218161804U
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Abstract
The utility model discloses a single live wire power taking device, which comprises a switch module, wherein one end of the switch module is connected with a live wire; one end of the first power taking module is connected with the other end of the switch module, and the other end of the first power taking module is connected with a zero line; the first power taking module is used for working when the switch module is switched on or not working when the switch module is switched off; the flash eliminating module is connected with the first power taking module in parallel and used for opening the circuit when the first power taking module works or short-circuiting the first power taking module when the first power taking module does not work; the utility model discloses a set up the flash module that disappears and can effectively avoid appearing the ghost fire phenomenon.
Description
Technical Field
The utility model relates to an electronic circuit technical field, in particular to electric installation is got to single live wire.
Background
In order to meet the requirement of home decoration aftermarket, products such as an intelligent switch panel and an intelligent dimmer can be used for single live wire connection. In a single live wire connection scenario, the current loop required by the intelligent control unit of the product is usually completed by a load light bulb. However, when the lamp is turned off, the voltage across the lamp is very low, the weak leakage current is not enough to maintain the normal operation of the intelligent control unit with high power, and the ghost fire phenomenon occurs in a part of the lamp under the weak leakage current.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single live wire gets electric installation makes single live wire get electric installation can normally work under the state of turning off the light through setting up the flash of extinguishing module, and ghost fire phenomenon can not appear.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the embodiment of the application provides a single live wire gets electric installation, include:
one end of the switch module is connected with the live wire;
one end of the first power taking module is connected with the other end of the switch module, and the other end of the first power taking module is connected with the zero line; the first power taking module is used for working when the switch module is switched on or not working when the switch module is switched off;
the flash eliminating module is connected with the first power taking module in parallel and used for opening the circuit when the first power taking module works or short-circuiting the first power taking module when the first power taking module does not work.
In some embodiments, the single hot line power supply device includes:
the flash eliminating unit is connected with the first power taking module in parallel;
the control unit is connected with the flash eliminating unit and controls the flash eliminating unit to be switched on or off according to the input voltage; the flash eliminating unit is used for short-circuiting the first power taking module when the first power taking module is conducted;
and the driving unit is connected with the flash extinguishing unit and used for providing driving voltage for the flash extinguishing unit.
In some embodiments of the single-live-wire power-taking device, the lightning-extinguishing module further includes a maintaining unit, and the maintaining unit is connected with the lightning-extinguishing unit; the maintaining unit is used for maintaining the flash eliminating unit in a disconnected state when the first power taking module works.
In some embodiments, the single live wire power-taking device further includes a current-limiting unit connected to the flash-eliminating unit; the current limiting unit is used for limiting the magnitude of the current flowing through the flash extinguishing unit.
In some embodiments, the single live wire power taking device includes a first switching tube, a first end of the first switching tube is connected to the control unit and the driving unit, a second end of the first switching tube is connected to the current limiting unit, and a third end of the first switching tube is connected to the current limiting unit.
In some embodiments, the control unit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first zener diode, a first capacitor, a first diode, and a second switch tube;
one end of the first resistor is connected with the power supply, the other end of the first resistor is connected with one end of the second resistor, the other end of the second resistor is connected with the negative electrode of the first voltage stabilizing diode, the positive electrode of the first voltage stabilizing diode is connected with the positive electrode of the first diode and one end of the third resistor, the other end of the third resistor is grounded, the negative electrode of the first diode is connected with one end of the fourth resistor and one end of the first capacitor, the other end of the first capacitor is grounded, the other end of the fourth resistor is connected with one end of the fifth resistor and the first end of the second switch tube, the other end of the fifth resistor is grounded, the second end of the second switch tube is connected with the first end of the first switch tube, and the third end of the second switch tube is grounded.
In some embodiments, the single live wire power taking device includes a driving unit including a sixth resistor, a seventh resistor, and a second zener diode; one end of the sixth resistor is connected with the power supply, the other end of the sixth resistor is connected with one end of the seventh resistor, the other end of the seventh resistor is connected with the first end of the first switch tube, the cathode of the second voltage stabilizing diode is connected with the first end of the first switch tube, and the anode of the second voltage stabilizing diode is grounded.
In some embodiments, the single-hot-wire power taking device includes a maintaining unit, a first capacitor, a first diode, and a second diode, where one end of the first capacitor is connected to a power supply, the other end of the first capacitor is connected to an anode of the first diode and a cathode of the second diode, a cathode of the first diode is connected to one end of a fourth resistor, and an anode of the first diode is grounded.
In some embodiments, the current limiting unit includes an eighth resistor, one end of the eighth resistor is connected to the power supply, and the other end of the eighth resistor is connected to the second end of the first switch tube.
In some embodiments, the single live wire power taking device further includes a rectifier bridge, wherein the 1 st pin of the rectifier bridge is connected to the maintaining unit, the control unit, the driving unit and the current limiting unit, the 4 th pin of the rectifier bridge is grounded, the 3 rd pin of the rectifier bridge is connected to one end of the first power taking module, and the 2 nd pin of the rectifier bridge is connected to the other end of the rectifier bridge.
Compared with the prior art, the utility model provides a single live wire flash arrester, through setting up the flash arrester module and ensuring to get the electric module short circuit with the first when getting the electric module out of work first, provide the current loop for the whole device by the flash arrester module, ensure under the state that the first gets the electric module out of work, the whole device still can normally work; meanwhile, the loop current does not pass through the first power taking module, so that the phenomenon of ghost fire is avoided.
Drawings
Fig. 1 is the utility model provides a structural block diagram of a single live wire power taking device.
Fig. 2 is the current loop schematic diagram of the single live wire power-taking device provided by the utility model.
Fig. 3 is a first structural block diagram of a flash extinguishing circuit in the single-live-wire power take-off device provided by the present invention.
Fig. 4 is a second structural block diagram of a flash extinguishing circuit in the single-live-wire power take-off device provided by the present invention.
Fig. 5 is a third structural block diagram of a flash extinguishing circuit in the single-live-wire power take-off device provided by the present invention.
Fig. 6 is a schematic circuit diagram of a lightning arrester circuit in the single-live-wire power-taking device provided by the present invention.
Detailed Description
An object of the utility model is to provide a single live wire gets electric installation makes single live wire get electric installation can normally work under the state of turning off the light through setting up the flash of disappears module, and ghost fire phenomenon can not appear.
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Please refer to fig. 1, the utility model provides a single live wire gets electric installation includes that switch module 100, the first module 200 of getting, the module 400 is got to the flash of disappearing and the second, and switch module 100 and second get the one end of module 400 and be connected with the live wire, and switch module 100's the other end is connected with the first one end of getting module 200, and the other end of second drive module is connected with switch module 100's the other end, and the first other end of getting module 200 is connected with the zero line, and the module 300 that flashes of disappearing is connected with first getting module 200 parallel connection.
Wherein, the utility model provides a single live wire gets electric installation can be intelligent switch panel, also can be products such as intelligent accent ware. The first power-taking module 200 in the single-live-wire power-taking device is a load bulb, and the second power-taking module 400 can be an AC-DC circuit in an intelligent switch panel or an intelligent dimmer, and the circuit is used for obtaining electric energy to supply power to a back-end circuit. The switch module 100 belongs to an MOS transistor in an intelligent switch panel or an intelligent light modulator, and products such as the intelligent switch panel or the intelligent light modulator perform phase switching by controlling the conduction time of the MOS transistor to complete power taking and maintain self-operation, as shown in a path a in fig. 2, at this time, the whole current loop of the device is that a live wire passes through the switch module 100 and then passes through the first power taking module 200 to reach a zero line, that is, when the switch module 100 is turned on, the first power taking module 200 enters an operating state, the flash extinguishing module 300 is used for opening a circuit when the first power taking module 200 operates, and the flash extinguishing module 300 does not operate.
When the switch module 100 is turned off, the first power taking module 200 does not operate, the load bulb in this embodiment is not turned on, and is in a light-off state, and at this time, the voltage across the load bulb is very low. The flash elimination module 300 is involved in operation, and the flash elimination module 300 is used for short-circuiting the first power taking module 200 when the first power taking module 200 does not operate. The flash extinction module 300 obtains the ac power provided by the live wire through the second power taking module 400. As shown in path b in fig. 2, at this time, the current loop of the device is from the live wire to the neutral wire after passing through the second power-taking module 400 to the flash-extinguishing module 300, so as to ensure that the whole device can still work normally when the load bulb is in a light-off state; meanwhile, the loop current does not pass through the load bulb, and the phenomenon of ghost fire is avoided.
In specific implementation, referring to fig. 3, the flash extinction module 300 includes a rectifier bridge 360, a flash extinction unit 310, a control unit 320, and a driving unit 330. Wherein, the flash dissipation module 300 still includes rectifier bridge 360, rectifier bridge 360's the 1 st foot respectively with maintain the unit 340, the control unit 320, drive unit 330 and flash dissipation unit 310 are connected, rectifier bridge 360's the 4 th foot ground connection, rectifier bridge 360's the 3 rd foot is connected with the first one end of getting electric module 200, rectifier bridge 360's the 2 nd foot is connected with the first other end of getting electric module 200, namely rectifier bridge 360 is through the 2 nd foot and the 3 rd foot and first electric module 200 parallel connection of getting this moment, and flash dissipation unit 310 is connected with rectifier bridge 360's the 1 st foot and the 4 th foot respectively, be equivalent to and flash dissipation unit 310 through rectifier bridge 360 and first electric module 200 parallel connection of getting. The control unit 320 and the driving unit 330 are also connected to the flash extinguishing unit 310.
The control unit 320 in this embodiment is configured to control the flash extinguishing unit 310 to be turned on or off according to the input voltage; the flash eliminating unit 310 is used for short-circuiting the first power taking module 200 when the first power taking module is turned on; the driving unit 330 is used for providing a driving voltage for the flash extinguishing unit 310. Specifically, when the load bulb is in an on state, the 230V ac power is rectified by the rectifier bridge 360 to provide an input voltage for the control unit 320, the input voltage reaches a voltage value required by the control unit 320 to operate, the control unit 320 controls the flash elimination unit 310 to be turned off according to the input voltage, and the entire flash elimination module 300 is in an off state. When the load bulb is in the off state, the input voltage to the control unit 320 is not enough to maintain the operation of the control unit 320, and at this time, the control unit 320 controls the flash extinguishing unit 310 to be turned on according to the input voltage, and the driving unit 330 provides a driving voltage for the flash extinguishing unit 310 to ensure that the flash extinguishing unit 310 can obtain the electric energy, so that the whole flash extinguishing module 300 provides a current loop for the whole device, and the whole device can normally operate; and the load bulb is short-circuited, no current flows, and no ghost fire phenomenon occurs.
In some embodiments, referring to fig. 4, the flash extinguishing module 300 further includes a maintaining unit 340, the maintaining unit 340 is connected to the flash extinguishing unit 310; the maintaining unit 340 is used for maintaining the flash eliminating unit 310 in an off state when the first power-taking module 200 works. When the load bulb is in the on state, in the stage that the input voltage rises from the zero point to the voltage value required by the control unit 320 every period, the control module still controls the flash extinguishing unit 310 to be in the off state in the stage due to the setting of the maintaining module, so as to avoid the flash extinguishing unit 310 from being turned on in the stage, and further effectively avoid the intervention work of the flash extinguishing module 300 in the on state.
In some embodiments, referring to fig. 5, the flash extinguishing module 300 further includes a current limiting unit 350, and the current limiting unit 350 is connected to the flash extinguishing unit 310; the current limiting unit 350 is used to limit the magnitude of the current flowing through the flash suppressing unit 310. In this embodiment, the current limiting module is arranged to provide an overcurrent protection for the flash elimination unit 310, so as to improve the reliability of the flash elimination module 300.
Referring to fig. 6, as an embodiment, the flash extinguishing unit 310 includes a first switch Q1, a first end of the first switch Q1 is connected to the control unit 320 and the driving unit 330, a second end of the first switch Q1 is connected to the current limiting unit 350, and a third end of the first switch Q1 is connected to the current limiting unit. In this embodiment, the first switch tube Q1 may be an MOS tube, a first end of the first switch tube Q1 is a gate of the MOS tube, a second end of the first switch tube Q1 is a drain of the MOS tube, a third end of the first switch tube Q1 is a source of the MOS tube, and the gate of the MOS tube is connected to the driving unit 330 and the control unit 320, respectively.
As an embodiment, the control unit 320 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first zener diode ZD1, a first capacitor C1, a first diode D1, and a second switch Q2; one end of the first resistor R1 is connected with a power supply, the other end of the first resistor R1 is connected with one end of the second resistor R2, the other end of the second resistor R2 is connected with the cathode of the first voltage-stabilizing diode ZD1, the anode of the first voltage-stabilizing diode ZD1 is connected with the anode of the first diode D1 and one end of the third resistor R3, the other end of the third resistor R3 is grounded, the cathode of the first diode D1 is connected with one end of the fourth resistor R4 and one end of the first capacitor C1, the other end of the first capacitor C1 is grounded, the other end of the fourth resistor R4 is connected with one end of the fifth resistor R5 and the first end of the second switch tube Q2, the other end of the fifth resistor R5 is grounded, the second end of the second switch tube Q2 is connected with the first end of the first switch tube Q1, and the third end of the second switch tube Q2 is grounded.
The second switch tube Q2 is a triode, a first end of the second switch tube Q2 is a base of the switch tube, a second end of the second switch tube Q2 is a collector of the switch tube, and a third end of the second switch tube Q2 is an emitter of the switch tube. And the grid electrode of the MOS tube is connected with the collector electrode of the triode. First zener diode ZD1 in this embodiment can select the zener diode that breakdown voltage is 22V, and this breakdown voltage can select according to actual need certainly, the utility model discloses do not do the restriction to this.
When the load bulb is in a light-on state, 230V alternating current voltage is rectified by the rectifier bridge 360, is limited by the first resistor R1 and the second resistor R2 and then is loaded on the first voltage stabilizing diode ZD1, at the moment, when the input voltage is greater than 22V, the first voltage stabilizing diode ZD1 is in reverse breakdown, and the voltage is loaded on the base electrode of the triode through the first diode D1 and the fourth resistor R4, so that the triode is conducted. After the triode is conducted, the grid electrode of the MOS tube is pulled down to the ground potential, at the moment, the MOS tube is in a disconnected state, and the anti-flash module 300 does not participate in the work.
When the load bulb is in a light-off state, the input voltage is smaller than the breakdown voltage 22V of the first voltage-stabilizing diode ZD1, the first voltage-stabilizing diode ZD1 does not reach the reverse breakdown voltage, the triode is disconnected, the grid electrode of the MOS tube cannot be pulled down to the ground potential at the moment, the driving unit 330 supplies the driving voltage for the MOS tube, so that the MOS tube is conducted, the flash eliminating module 300 provides a current loop for the whole system at the moment, no current flows through the load bulb, and no ghost fire is generated.
As an example, the driving unit 330 includes a sixth resistor R6, a seventh resistor R7, and a second zener diode ZD2; one end of a sixth resistor R6 is connected with the power supply, the other end of the sixth resistor R6 is connected with one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected with the first end of the first switch tube Q1, the cathode of a second voltage-stabilizing diode ZD2 is connected with the first end of the first switch tube Q1, and the anode of the second voltage-stabilizing diode ZD2 is grounded.
When the load lamp is in a light-off state, the triode is switched off, then the grid electrode of the MOS tube is not pulled down to the ground potential, and therefore the grid electrode of the MOS tube is provided with a driving voltage by the sixth resistor R6, the seventh resistor R7 and the second voltage stabilizing diode ZD2, so that the MOS tube is conducted.
In an embodiment, the maintaining unit 340 includes a second capacitor C2, a second diode D2, and a third diode D3, one end of the second capacitor C2 is connected to the power supply, the other end of the second capacitor C2 is connected to the anode of the second diode D2 and the cathode of the third diode D3, the cathode of the second diode D2 is connected to one end of a fourth resistor R4, and the anode of the second diode D2 is grounded. In this embodiment, the second capacitor C2, the second diode D2, and the third diode D3 are arranged to ensure that the input voltage rises from zero to the required operating voltage of the first zener diode ZD1 in each cycle when the load bulb is in the on state, thereby avoiding the conduction operation of the MOS transistor.
As an embodiment, the current limiting unit 350 includes an eighth resistor R8, one end of the eighth resistor R8 is connected to the power supply, and the other end of the eighth resistor R8 is connected to the second end of the first switching tube Q1. The eighth resistor R8 in this embodiment is a current-limiting resistor, and provides overcurrent protection for the MOS transistor by setting the current-limiting resistor.
As an embodiment, the lightning strike elimination module 300 further includes a fuse F1 and a piezoresistor RV1, one end of the fuse F1 is connected to one end of the first power taking module 200, the other end of the fuse F1 is connected to the 3 rd pin of the rectifier bridge 360, one end of the piezoresistor RV1 is connected to the 3 rd pin of the rectifier bridge 360, and the other end of the piezoresistor RV1 is connected to the other end of the first power taking module 200; in this embodiment, the fuse F1 and the varistor RV1 are provided for implementing overcurrent and overvoltage protection on the input terminal of the rectifier bridge 360, thereby improving the reliability of the flash elimination module 300.
In summary, the single-live-wire flash arrester provided by the utility model ensures that the first electricity-taking module is short-circuited when the first electricity-taking module does not work by arranging the flash arrester module, and the flash arrester module provides a current loop for the whole device, so that the whole device can still work normally when the first electricity-taking module does not work; meanwhile, the loop current does not pass through the first power taking module, so that the phenomenon of ghost fire is avoided.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a single live wire gets electric installation which characterized in that includes:
one end of the switch module is connected with the live wire;
one end of the first power taking module is connected with the other end of the switch module, and the other end of the first power taking module is connected with a zero line; the first power taking module is used for working when the switch module is switched on or not working when the switch module is switched off;
the lightning extinguishing module is connected with the first power taking module in parallel and used for opening the circuit when the first power taking module works or short-circuiting the first power taking module when the first power taking module does not work.
2. The single live wire power taking device according to claim 1, wherein the flash extinguishing module comprises:
the lightning extinguishing unit is connected with the first power taking module in parallel;
the control unit is connected with the flash eliminating unit and controls the flash eliminating unit to be switched on or switched off according to the input voltage; the flash eliminating unit is used for short-circuiting the first power taking module when the first power taking module is conducted;
and the driving unit is connected with the flash eliminating unit and used for providing driving voltage for the flash eliminating unit.
3. The single live wire power taking device according to claim 2, wherein the flash extinguishing module further comprises a maintaining unit, and the maintaining unit is connected with the flash extinguishing unit; the maintaining unit is used for maintaining the flash eliminating unit in a disconnected state when the first power taking module works.
4. The single live wire power taking device according to claim 3, wherein the flash extinguishing module further comprises a current limiting unit, and the current limiting unit is connected with the flash extinguishing unit; the current limiting unit is used for limiting the magnitude of current flowing through the flash extinguishing unit.
5. The single live wire power taking device according to claim 4, wherein the lightning arrester unit comprises a first switch tube, a first end of the first switch tube is connected with the control unit and the driving unit, a second end of the first switch tube is connected with the current limiting unit, and a third end of the first switch tube is connected.
6. The single live wire power taking device according to claim 5, wherein the control unit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first zener diode, a first capacitor, a first diode, and a second switching tube;
one end of the first resistor is connected with a power supply, the other end of the first resistor is connected with one end of the second resistor, the other end of the second resistor is connected with the cathode of the first voltage-stabilizing diode, the anode of the first voltage-stabilizing diode is connected with the anode of the first diode and one end of the third resistor, the other end of the third resistor is grounded, the cathode of the first diode is connected with one end of the fourth resistor and one end of the first capacitor, the other end of the first capacitor is grounded, the other end of the fourth resistor is connected with one end of the fifth resistor and the first end of the second switch tube, the other end of the fifth resistor is grounded, the second end of the second switch tube is connected with the first end of the first switch tube, and the third end of the second switch tube is grounded.
7. The single live wire power taking device according to claim 5, wherein the driving unit comprises a sixth resistor, a seventh resistor and a second zener diode; one end of the sixth resistor is connected with the power supply, the other end of the sixth resistor is connected with one end of the seventh resistor, the other end of the seventh resistor is connected with the first end of the first switch tube, the cathode of the second voltage stabilizing diode is connected with the first end of the first switch tube, and the anode of the second voltage stabilizing diode is grounded.
8. The single live wire power taking device according to claim 6, wherein the maintaining unit comprises a second capacitor, a second diode and a third diode, one end of the second capacitor is connected with a power source, the other end of the second capacitor is connected with an anode of the second diode and a cathode of the third diode, a cathode of the second diode is connected with one end of the fourth resistor, and an anode of the second diode is grounded.
9. The single live wire power taking device according to claim 5, wherein the current limiting unit comprises an eighth resistor, one end of the eighth resistor is connected with a power source, and the other end of the eighth resistor is connected with the second end of the first switching tube.
10. The single live wire power taking device according to any one of claims 5 to 9, wherein the lightning arrester module further comprises a rectifier bridge, a 1 st pin of the rectifier bridge is connected to the maintaining unit, the control unit, the driving unit and the current limiting unit, a 4 th pin of the rectifier bridge is grounded, a 3 rd pin of the rectifier bridge is connected to one end of the first power taking module, and a 2 nd pin of the rectifier bridge is connected to the other end of the rectifier bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222618719.4U CN218161804U (en) | 2022-09-30 | 2022-09-30 | Single-live-wire power taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222618719.4U CN218161804U (en) | 2022-09-30 | 2022-09-30 | Single-live-wire power taking device |
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| Publication Number | Publication Date |
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| CN218161804U true CN218161804U (en) | 2022-12-27 |
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| CN202222618719.4U Active CN218161804U (en) | 2022-09-30 | 2022-09-30 | Single-live-wire power taking device |
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| CN (1) | CN218161804U (en) |
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- 2022-09-30 CN CN202222618719.4U patent/CN218161804U/en active Active
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