CN215777161U

CN215777161U - External wireless control device of electric curtain

Info

Publication number: CN215777161U
Application number: CN202023221399.6U
Authority: CN
Inventors: 姚国良; 邹志烽
Original assignee: Nanjing Taihao Intelligent Technology Co ltd
Current assignee: Nanjing Taihao Intelligent Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-02-11
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to an external wireless control device of a motorized window curtain, which comprises a Zigbee wireless transceiving and processor module, an AC-DC conversion and voltage stabilization component, a relay array and a 2-way RJ11 telephone line connector. The Zigbee wireless transceiving and processor module receives a wireless machine control command sent by a main control party, converts the command into a GPIO high-low level signal through an internal microcontroller to drive the relay array to act, and can control the on-off of an RJ11 telephone line connector circuit through the opening and closing of the relay array, thereby controlling the forward rotation, the reverse rotation and the stop operation of the electric curtain motor, and realizing the Zigbee mode wireless control curtain function without changing the design of the existing electric curtain motor.

Description

External wireless control device of electric curtain

Technical Field

The utility model relates to the field of application of Internet of things, in particular to wireless curtain control application occasions such as smart homes, smart hotels, intelligent buildings and the like, and particularly provides an external wireless control device for an electric curtain.

Background

With the continuous development of the internet of things technology and the gradual maturity of the industry, the wireless sensor network technology is gradually popularized and used in various fields, and the wireless remote control electric curtain can enable hotel guests or household personnel to experience the comfort of the house, and can be conveniently opened and closed in a wireless remote control mode.

At present, the Zigbee technology of 2.4Ghz is increasingly applied to wireless control in the field of intelligent home due to good networking function, and can realize home products with high intelligent level. However, the conventional electric curtain motor is usually only embedded with a 433Mhz wireless module, and a simple point-to-point remote control function is realized through a remote controller, and the conventional electric curtain motor does not contain a Zigbee wireless module, so that the further popularization of smart home, particularly Zigbee smart home, is greatly influenced.

The existing electric curtain motor is basically provided with an RJ11 telephone line interface to carry out wired control. Therefore, the external wireless control device for the electric curtain is provided, and the on-off function of the curtain motor is controlled in a wireless Zigbee mode by converting a wireless Zigbee signal into the on-off control motor of a control wire in a telephone line RJ11 to operate.

Disclosure of Invention

An external wireless control device of an electric curtain comprises a Zigbee wireless transceiving and processor module, an AC-DC conversion and voltage stabilization component, a relay array and a 2-way RJ11 telephone line connector; the power supply end of the Zigbee wireless transceiving and processor module is connected with a 3.3v power supply output by the AC-DC conversion and voltage stabilization component, the output port of the Zigbee wireless transceiving and processor module is connected with the input control port of the relay array, and the output port of the relay array is connected with a 2-way RJ11 telephone line connector; the Zigbee wireless transceiving and processor module receives a wireless machine control command sent by the main control party, converts the wireless machine control command into a GPIO high-low level signal through an internal microcontroller to drive the relay array to act, and further controls the connection and disconnection of an RJ11 telephone line connector circuit through the opening and closing of the relay array, thereby controlling the forward and reverse rotation and stopping operation of the motor of the electric curtain.

Furthermore, the Zigbee wireless transceiver and processor module is packaged in a bilateral direct-insertion manner, each side of the Zigbee wireless transceiver and processor module includes 11 pins, the width of each pin is 0.8mm, and the distance between the centers of the pins is 1.27 mm; the module is connected with the bottom plate in a mode of inserting the bottom plate for welding, five programming signal pins attached to the module are VCC, GND, DC, DD and RESET, are arranged on the bottom plate by adopting a single row of holes with the spacing of 2 mm, and are connected with corresponding signals on the module.

Furthermore, the relay array comprises four relays, one end of a coil of each relay is connected with the positive electrode of a power supply, and the other end of the coil of each relay is connected with a GPIO control port of the Zigbee wireless transceiver processor module through the Darlington unit; the output end 1 and the output end 2 of the first relay are respectively connected with the 1 st pin and the 4 th pin of an RJ11 interface, and the output end 1 and the output end 2 of the second relay are respectively connected with the 2 nd pin and the 4 th pin of an RJ11 interface.

Furthermore, the AC-DC conversion and voltage stabilization component comprises a direct current power supply unit which converts 220V commercial power into 5V by an isolation power supply module and is connected with a relay power supply coil end to supply power to the relay; the AC-DC conversion and voltage stabilization part comprises a linear voltage stabilization chip for converting 5V into 3.3V, and the linear voltage stabilization chip is used for further reducing the voltage of a power supply and outputting a 3.3V power supply to be connected with a power supply end of the Zigbee wireless transceiving and processor module.

Drawings

Fig. 1 is a general frame diagram of an external wireless control device of a motorized window shade.

Fig. 2 is a layout of a wireless module soldered on a base board.

Detailed Description

The technical solution will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1, an external wireless control device for a motorized window treatment adopts a Zigbee wireless module having a CC2530 Soc processor of TI as a core, and the module includes a wireless transceiver conforming to IEEE 802.15.4 standard and a 51-core single chip microcomputer core. When the wireless transceiver on the wireless module receives an IEEE 802.15.4 frame, the frame is analyzed, the data is transmitted to the singlechip kernel through the internal bus, and then the singlechip kernel further controls the GPIO output level according to the defined frame specification.

The GPIO port P0_3 of the wireless module is connected with the input port of Darlington, the corresponding output port is connected with one pin of the coil pin of the HF32F of the first relay, the other pin is connected with 5V, and 2 output ports of the relay are respectively connected with the 1 st port and the 4 th port of the RJ11 interface. The GPIO port P0_2 is connected with the input port of Darlington, the corresponding output port is connected with one pin of 2 coil pins of a relay HF32F, the other pin is connected with 5V, and 2 output ports of the relay are respectively connected with the 2 nd port and the 4 th port of an RJ11 interface. When P0_3 outputs high level, the relay is conducted, the 1 st port and the 2 nd port of RJ11 are in short circuit, so that the motor is controlled to rotate in the forward direction, and when P0_3 is converted into low level, the high level is output again, and the motor is suspended. The second relay is controlled in a similar manner by which received wireless data frames are converted into operational operation of the motor.

The wireless module adopts direct-insert packaging pins, each side of the wireless module comprises 11 pins, the width of each pin is 0.8mm, and the distance between the pins is 1.27 mm; the module is connected to the backplane by means of solder interposed between the backplane and the pads disposed on the side of the backplane. The module comprises GPIO port signals, power supply signals, programming interface signals and the like. In order to update the program conveniently, a programming hole array for downloading the program is designed on the bottom plate, single-row hole arrangement with the interval of 2 mm is adopted, five programming signal pins attached to the module are VCC, GND, DC, DD and RESET, and the five programming signal pins are connected to the programming hole array of the bottom plate through module direct-insert pins.

The AC-DC conversion and voltage stabilization component adopts an isolation circuit structure with a PN8366 power management chip as a core, and is designed into a mode that an independent power module is inserted into a bottom plate for welding to be deployed, wherein the input of the independent power module is 220V alternating current power supply, and the output of the independent power module is 5V direct current power supply. The output end converts 5V into 3.3V through a linear voltage stabilizing chip with the model of AMS1117 and is used by the wireless module.

Claims

1. An external wireless control device of a motorized window curtain is characterized by comprising a Zigbee wireless transceiving and processor module, an AC-DC conversion and voltage stabilization component, a relay array and a 2-way RJ11 telephone line connector; the power supply end of the Zigbee wireless transceiving and processor module is connected with a 3.3V power supply output by the AC-DC conversion and voltage stabilization component, the output port of the Zigbee wireless transceiving and processor module is connected with the input control port of the relay array, and the output port of the relay array is connected with a 2-way RJ11 telephone line connector; the Zigbee wireless transceiving and processor module receives a radio machine control command sent by a main controller, converts the command into a GPIO high-low level signal through an internal microcontroller to drive a relay array to act, and further controls the connection and disconnection of an RJ11 telephone line connector circuit through the opening and closing of the relay array.

2. The external wireless control device of claim 1, wherein the Zigbee wireless transceiver and processor module is packaged in a two-sided direct insertion manner, each side of the Zigbee wireless transceiver and processor module comprises 11 pins, each pin has a width of 0.8mm, and the distance between the centers of the pins is 1.27 mm; the module is connected with the bottom plate in a mode of inserting the bottom plate for welding, five programming signal pins attached to the module are VCC, GND, DC, DD and RESET, are arranged on the bottom plate by adopting a single row of holes with the spacing of 2 mm, and are connected with corresponding signals on the module.

3. The external wireless control device of claim 1, wherein the relay array comprises four relays, one end of each relay coil is connected to the positive electrode of a power supply, and the other end of each relay coil is connected to a GPIO control port of the Zigbee wireless transceiver module through the Darlington unit; the output end 1 and the output end 2 of the first relay are respectively connected with the 1 st pin and the 4 th pin of an RJ11 interface, and the output end 1 and the output end 2 of the second relay are respectively connected with the 2 nd pin and the 4 th pin of an RJ11 interface.

4. The external wireless control device of claim 1, wherein the AC-DC conversion and voltage regulation component comprises a DC power supply unit for converting 220V commercial power into 5V by the isolated power supply module, and is connected to the relay power supply coil end to supply power to the relay; the AC-DC conversion and voltage stabilization part comprises a linear voltage stabilization chip for converting 5V into 3.3V, and the linear voltage stabilization chip is used for further reducing the voltage of a power supply and outputting a 3.3V power supply to be connected with a power supply end of the Zigbee wireless transceiving and processor module.