CN216868440U - Single live wire intelligence switch based on ZIGBEE - Google Patents
Single live wire intelligence switch based on ZIGBEE Download PDFInfo
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- CN216868440U CN216868440U CN202123233138.0U CN202123233138U CN216868440U CN 216868440 U CN216868440 U CN 216868440U CN 202123233138 U CN202123233138 U CN 202123233138U CN 216868440 U CN216868440 U CN 216868440U
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Abstract
The utility model discloses a ZIGBEE-based single-live-wire intelligent switch, which comprises: the device comprises an n-channel MOS tube, an MOS tube control circuit, a relay drive IC, a switching power supply module, an LDO voltage reduction circuit, a ZIGBEE module and a voltage difference power-taking module. When the load is not started, the LDO voltage reduction circuit obtains electricity through the switching power supply module, and the front section live wire and the rear section live wire are not connected, so that the current flowing through the lamp can be effectively inhibited, and the phenomena of micro-brightness and flicker of the load (lamp) are avoided. The switch closure that not only needs the relay of switching on of anterior segment live wire and back end live wire still needs the D level and the S utmost point of n channel MOS pipe to powerful is controlled the connection of anterior segment live wire and back end live wire, when avoiding using ordinary relay to carry out the fast switch, the obvious scintillation that appears.
Description
Technical Field
The utility model relates to the technical field of intelligent switches, in particular to a single-live-wire intelligent switch based on ZIGBEE.
Background
In recent years, the development of the internet is benefited, the ecological construction of the smart home is changing day by day, and from the single home environment in the past to the colorful smart home decoration, the improvement of science and technology and the pursuit of people for comfortable and smart living environment are not reflected. As the demand for intelligent home decoration is increased, more and more technology companies are coming into the field, and development of practical, intelligent, novel and low-cost products is currently pursued.
The single-live-wire intelligent switch is a product developed under the environment requirement, and is mainly characterized in that the single-live-wire intelligent switch is upgraded and modified into an intelligent home, the traditional mechanical switch is replaced without rearranging a zero line, the modification cost is saved, and the product is deeply welcomed by users.
However, the current single-live-wire intelligent switch technology is not mature enough, the control part of the existing single-live-wire intelligent switch is directly connected in parallel at two ends of the switch to get electricity, the switch still needs to be maintained to work by small current under the condition that the switch is disconnected, and when the power of the lamp is very small or the lamp is sensitive to the current, the lamp can be slightly bright and twinkle even if the lamp is not turned on. The common relay is used, the power consumption is high, and the flicker phenomenon can be obviously seen when the relay is quickly switched on and switched off. To reduce standby power consumption, the on-off indicator state is set to illuminate only when the light is turned on, and the on-off position cannot be discriminated in the night.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a single live wire intelligence switch based on ZIGBEE makes up current single live wire intelligence switch's defect, and convenience of customers uses.
The technical scheme of the utility model is as follows: the utility model provides a support single live wire intelligence switch based on ZIGBEE, include: the device comprises an n-channel MOS tube, an MOS tube control circuit, a relay drive IC, a switching power supply module, an LDO (low dropout regulator) voltage reduction circuit, a ZIGBEE module and a voltage difference power taking module; the MOS pipe control circuit includes: the system comprises an MOS (metal oxide semiconductor) tube control IC, a first divider resistor and a second divider resistor, wherein the S pole of an n-channel MOS tube is connected with a front-section live wire, the G pole of the n-channel MOS tube is connected with a control pin of the MOS tube control IC, the switching end of a relay is respectively connected with the D pole of the n-channel MOS tube and a rear-section live wire, two ends of the first divider resistor are respectively connected with the D pole of the n-channel MOS tube and a feedback pin of the MOS tube control IC, one end of the second divider resistor is grounded, the other end of the second divider resistor is connected with a feedback pin of the MOS tube control IC, the control end of the relay is connected with a relay drive IC, a switching power module is connected with a rear-section live wire, the switching power module is connected with an LDO (low dropout regulator) circuit, and the LDO buck circuit is respectively connected with the relay drive IC, the MOS tube control IC and a ZIGBEE module; the voltage difference power taking module is a first power supply capacitor, and the negative electrode of the first power supply capacitor is grounded, and the positive electrode of the first power supply capacitor is connected with the D electrode of the n-channel MOS tube and the LDO step-down circuit.
The back-end live wire is used to connect to a load (e.g., a light fixture) and then to connect to the neutral wire. When the load does not open, because there is voltage on the zero line equally, consequently, the voltage on the zero line can be exported for switching power supply module, and switching power supply module then exports voltage for LDO buck circuit, LDO buck circuit alright give ZIGBEE module, MOS pipe control IC, relay drive IC power supply. When the load is opened, also be the switch both ends switch-on of relay, first power supply capacitor just charges, first power supply capacitor after charging alright give LDO buck circuit with output voltage, LDO buck circuit alright give ZIGBEE module, MOS pipe control IC, relay drive IC power supply. Therefore, the ZIGBEE-based single-live-wire intelligent switch can normally operate regardless of whether the load is turned on or not.
When the load is not opened, the LDO step-down circuit gets electricity through the switching power supply module, and the anterior segment live wire and the back end live wire are not switched on, so the current flowing through the lamp can be effectively inhibited, and the phenomena of micro-brightness and flicker of the load (lamp) are avoided.
The switch closure that not only needs the relay of switching on of anterior segment live wire and back end live wire still needs the D level and the S utmost point of n channel MOS pipe to powerful is controlled the connection of anterior segment live wire and back end live wire, when avoiding using ordinary relay to carry out the fast switch, the obvious scintillation that appears.
Further, the voltage difference electricity taking module further comprises: the first power supply capacitor is connected with the D pole of the n-channel MOS tube through the first anti-reverse diode, the positive pole of the first power supply capacitor is connected with the negative pole of the first anti-reverse diode, and the positive pole of the first anti-reverse circuit is connected with the D pole of the n-channel MOS tube. The first anti-reverse diode is used for preventing the voltage of the first power supply capacitor from being output to a rear section live wire.
Further, the MOS transistor control circuit further includes: and the LDO voltage reduction circuit is connected with a power supply pin of the MOS tube control IC through the second anti-recoil diode.
Further, the MOS transistor control circuit further includes: further comprising: and the negative electrode of the second power supply capacitor is grounded, and the positive electrode of the second power supply capacitor is connected with the negative electrode of the second anti-recoil circuit.
Further, the second anti-kickback diode is used for preventing the voltage of the second power supply capacitor from being output to the LDO step-down circuit.
Further, the MOS transistor control circuit further includes: and the anode of the third anti-recoil diode is connected with the D pole of the n-channel MOS tube, and the cathode of the third anti-recoil diode is connected with a power supply pin of the MOS tube control IC. And the third anti-recoil diode is used for preventing the voltage of the second power supply capacitor from being output to the rear section live wire.
Further, single live wire intelligence switch based on ZIGBEE still includes: and the switch key and the switch indicator light are connected with the ZIGBEE module. The switch button is used for manual control, the switch pilot lamp is used for only switching the button in the night, and convenience of customers uses.
Further, single live wire intelligence switch based on ZIGBEE still includes: and the fuse is arranged on the rear section live wire.
Further, the rear-end live wire is connected with the power-on detection pin of the MOS tube control IC.
By adopting the scheme, the single-live-wire intelligent switch based on the ZIGBEE is provided, when the load is not started, the LDO voltage reduction circuit obtains electricity through the switching power supply module, and the front-section live wire and the rear-section live wire are not connected, so that the current flowing through a lamp can be effectively inhibited, and the phenomena of micro-brightness and flicker of the load (the lamp) are avoided. The switch closure that not only needs the relay of switching on of anterior segment live wire and back end live wire still needs the D level and the S utmost point of n channel MOS pipe to powerful is controlled the connection of anterior segment live wire and back end live wire, when avoiding using ordinary relay to carry out the fast switch, the obvious scintillation that appears.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a circuit diagram of a portion of the back end live line, switching power supply module, relay;
FIG. 3 is a circuit diagram of another portion of the back end live line, switching power supply module, relay;
FIG. 4 is a circuit connection diagram of a front-end live wire, an n-channel MOS transistor, an MOS transistor control circuit, and a voltage difference power-taking module;
FIG. 5 is a schematic circuit diagram of an LDO buck circuit;
fig. 6 is a circuit connection diagram of a relay drive IC;
FIG. 7 is a schematic circuit diagram of a ZIGBEE module;
FIG. 8 is a circuit diagram of the switch button;
fig. 9 is a circuit connection diagram of the switch indicator light.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 9, the present invention provides a ZIGBEE-based single live line intelligent switch, including: the device comprises an n-channel MOS tube 10, an MOS tube control circuit 11, a relay 12, a relay drive IC13, a switching power supply module 14, an LDO step-down circuit 15, a ZIGBEE module 16 and a voltage difference electricity taking module 17; the MOS transistor control circuit 11 includes: a MOS transistor control IC18, a first voltage-dividing resistor 19, a second voltage-dividing resistor 20, the S-pole of the n-channel MOS transistor 10 is connected to the front-stage live line 21, the G pole of the n-channel MOS transistor 10 is connected to the control pin of the MOS transistor control IC18, the switch end of the relay 12 is respectively connected with the D pole of the n-channel MOS transistor 10 and the rear-section live wire 22, two ends of the first voltage-dividing resistor 19 are respectively connected with the D electrode of the n-channel MOS transistor 10 and the feedback pin of the MOS transistor control IC18, one end of the second voltage-dividing resistor 20 is grounded, and the other end is connected with a feedback pin of the MOS transistor control IC18, the control terminal of the relay 12 is connected to the relay driver IC13, the switching power supply module 14 is connected to the back-end live wire 22, the switching power supply module 14 is connected with an LDO (low dropout regulator) voltage reducing circuit 15, and the LDO voltage reducing circuit 15 is respectively connected with a relay drive IC13, an MOS (metal oxide semiconductor) tube control IC18 and a ZIGBEE module 16; the voltage difference electricity taking module 17 is a first power supply capacitor 23, and the cathode of the first power supply capacitor 23 is grounded, and the anode of the first power supply capacitor is connected with the D pole of the n-channel MOS tube 10 and the LDO step-down circuit 15. In this embodiment, the ZIGBEE module 16 adopts the following chip types: EFR32MG21A010F768IM 32-B.
The back end live wire 22 is used to connect to a load (e.g., a light fixture) and then to connect to the neutral wire. When the load is not switched on, because there is voltage on the zero line equally, consequently, voltage on the zero line can be exported for switching power supply module 14, switching power supply module 14 then exports voltage to LDO step-down circuit 15, LDO step-down circuit 15 alright give ZIGBEE module 16, MOS pipe control IC18, relay drive IC13 power supply. When the load is turned on, that is, the two ends of the switch of the relay 12 are switched on, the first power supply capacitor 23 is charged, the charged first power supply capacitor 23 can output voltage to the LDO step-down circuit 15, and the LDO step-down circuit 15 can supply power to the ZIGBEE module 16, the MOS transistor control IC18 and the relay drive IC 13. Therefore, the ZIGBEE-based single-live-wire intelligent switch can normally operate regardless of whether the load is turned on or not.
When the load is not turned on, the LDO step-down circuit 15 takes power through the switching power supply module 14, and the front section live wire 21 and the rear section live wire 22 are not connected, so that the current flowing through the lamp can be effectively suppressed, and the phenomena of slight brightness and flicker of the load (lamp) are avoided.
The switch that not only needs relay 12 of switching on of anterior segment live wire 21 and back end live wire 22 is closed, still needs the D level and the S utmost point of n channel MOS pipe 10 to powerful is controlled the connection of anterior segment live wire 21 and back end live wire 22, when avoiding using ordinary relay to carry out the fast switch, the obvious scintillation that appears.
In this embodiment, the voltage difference electricity taking module 17 further includes: the first power supply capacitor 23 is connected with the D pole of the n-channel MOS transistor 10 through the first anti-recoil diode 24, the positive pole of the first power supply capacitor 23 is connected with the negative pole of the first anti-recoil diode 24, and the positive pole of the first anti-recoil circuit is connected with the D pole of the n-channel MOS transistor 10. The first anti-kickback diode 24 is used to prevent the voltage of the first supply capacitor 23 from being output to the back-end live wire 22.
In this embodiment, the MOS transistor control circuit 11 further includes: and the second anti-recoil diode 25 is used for connecting the LDO step-down circuit 15 with a power supply pin of the MOS tube control IC18 through the second anti-recoil diode 25.
In this embodiment, the MOS transistor control circuit 11 further includes: further comprising: and a cathode of the second power supply capacitor 26 is grounded, and an anode of the second power supply capacitor 26 is connected with a cathode of the second anti-recoil circuit.
In this embodiment, the second anti-kickback diode 25 is used to avoid the voltage of the second power supply capacitor 26 from being output to the LDO buck circuit 15.
In this embodiment, the MOS transistor control circuit 11 further includes: and the anode of the third anti-kickback diode 27 is connected with the D pole of the n-channel MOS tube 10, and the cathode of the third anti-kickback diode 27 is connected with a power supply pin of the MOS tube control IC 18. The third kick diode 27 is used to prevent the voltage of the second supply capacitor 26 from being output to the rear-stage live line 22.
In this embodiment, the single-live-wire intelligent switch based on ZIGBEE still includes: a switch button 28 and a switch indicator light 29 which are connected with the ZIGBEE module 16. The switch key 28 is used for manual control, and the switch indicator light 29 is used for only switching the switch key 28 at night, so that the use is convenient for users.
In this embodiment, the single live wire intelligence switch based on ZIGBEE still includes: a fuse 30 disposed on the back end live wire 22.
In this embodiment, the back-end live line 22 is connected to the power-on detection pin of the MOS transistor control IC 18.
In summary, the utility model provides a single live wire intelligent switch based on ZIGBEE, when a load is not turned on, the LDO step-down circuit takes power through the switching power supply module, and the front-stage live wire and the rear-stage live wire are not connected, so that current flowing through a lamp can be effectively suppressed, and the load (lamp) is prevented from being slightly bright and flickering. The switch closure that not only needs the relay of switching on of anterior segment live wire and back end live wire still needs the D level and the S utmost point of n channel MOS pipe to powerful is controlled the connection of anterior segment live wire and back end live wire, when avoiding using ordinary relay to carry out the fast switch, the obvious scintillation that appears.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A single live wire intelligence switch based on ZIGBEE, its characterized in that includes: the device comprises an n-channel MOS tube, an MOS tube control circuit, a relay drive IC, a switching power supply module, an LDO (low dropout regulator) voltage reduction circuit, a ZIGBEE module and a voltage difference electricity taking module; the MOS pipe control circuit includes: the system comprises an MOS (metal oxide semiconductor) tube control IC, a first divider resistor and a second divider resistor, wherein the S pole of an n-channel MOS tube is connected with a front-section live wire, the G pole of the n-channel MOS tube is connected with a control pin of the MOS tube control IC, the switching end of a relay is respectively connected with the D pole of the n-channel MOS tube and a rear-section live wire, two ends of the first divider resistor are respectively connected with the D pole of the n-channel MOS tube and a feedback pin of the MOS tube control IC, one end of the second divider resistor is grounded, the other end of the second divider resistor is connected with a feedback pin of the MOS tube control IC, the control end of the relay is connected with a relay drive IC, a switching power module is connected with a rear-section live wire, the switching power module is connected with an LDO (low dropout regulator) circuit, and the LDO buck circuit is respectively connected with the relay drive IC, the MOS tube control IC and a ZIGBEE module; the voltage difference electricity taking module is a first power supply capacitor, and the negative electrode of the first power supply capacitor is grounded, and the positive electrode of the first power supply capacitor is connected with the D electrode of the n-channel MOS tube and the LDO step-down circuit.
2. The ZIGBEE-based single-live-wire intelligent switch of claim 1, wherein the voltage difference power-taking module further comprises: the first power supply capacitor is connected with the D pole of the n-channel MOS tube through the first anti-reverse diode, the positive pole of the first power supply capacitor is connected with the negative pole of the first anti-reverse diode, and the positive pole of the first anti-reverse circuit is connected with the D pole of the n-channel MOS tube.
3. The ZIGBEE based single-fire-wire intelligent switch of claim 1, wherein the MOS pipe control circuit further comprises: and the LDO voltage reduction circuit is connected with a power supply pin of the MOS tube control IC through the second anti-recoil diode.
4. The ZIGBEE based single-fire-wire intelligent switch of claim 3, wherein the MOS pipe control circuit further comprises: further comprising: and the negative electrode of the second power supply capacitor is grounded, and the positive electrode of the second power supply capacitor is connected with the negative electrode of the second anti-recoil circuit.
5. A ZIGBEE based single-live wire intelligent switch as claimed in any one of claims 1 to 4, wherein said MOS pipe control circuit further comprises: and the anode of the third anti-recoil diode is connected with the D pole of the n-channel MOS tube, and the cathode of the third anti-recoil diode is connected with a power supply pin of the MOS tube control IC.
6. The ZIGBEE-based single-live wire intelligent switch of claim 1, further comprising: and the switch key and the switch indicator light are connected with the ZIGBEE module.
7. The ZIGBEE-based single-live wire intelligent switch of claim 1, further comprising: and the fuse is arranged on the rear section live wire.
8. The ZIGBEE based single-live line intelligent switch of claim 1, wherein the back-end live line is connected to a power-on detection pin of the MOS transistor control IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123233138.0U CN216868440U (en) | 2021-12-20 | 2021-12-20 | Single live wire intelligence switch based on ZIGBEE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123233138.0U CN216868440U (en) | 2021-12-20 | 2021-12-20 | Single live wire intelligence switch based on ZIGBEE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216868440U true CN216868440U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123233138.0U Active CN216868440U (en) | 2021-12-20 | 2021-12-20 | Single live wire intelligence switch based on ZIGBEE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216868440U (en) |
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2021
- 2021-12-20 CN CN202123233138.0U patent/CN216868440U/en active Active
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