RS485 charge control system for motorized window treatments

Abstract

The utility model discloses a kind of RS485 charging control systems, including 485 controller, 485 controller includes power supply end+12V, ground terminal GND, signal end A and signal end B, the power supply end+12V of 485 controller is connected with the power supply end+12V of lithium battery motor through network cable, the ground terminal GND of 485 controller is connected with the ground terminal GND of lithium battery motor through network cable, the signal end A of 485 controller is connected with the signal end A of lithium battery motor through network cable, the signal end B of 485 controller is connected with the signal end B of lithium battery motor through network cable.This one-to-many charging mode, single wire (network cable) can complete communication+power supply / charging mode, and multiple curtain motors are connected to master control device through a network cable and communicate the power of multiple curtain motors through network cable, and the master control carries RS485 communication protocol to monitor the power of curtain motor through network cable, when the power of certain curtain motor is less than charging threshold value, communication control power shortage curtain motor starts charging, and hardware resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of electric curtain manufacturing technology, and in particular to an RS485 charging control system for electric curtains. Background Technology

[0002] With the development of technology and the improvement of people's living standards, automatic curtains are widely used in various public buildings and private homes. Automatic curtains typically use a tubular motor to drive a roller tube, which in turn rolls up or down the curtains, thus automating the opening and closing process. Currently, most tubular motors on the market are powered by rechargeable lithium batteries. After the motor has been running for a period of time, the lithium battery needs to be charged to ensure the normal operation of the motor and the automatic curtain opening / closing mechanism. In current practical applications, manual charging of the lithium battery requires additional tools. For example, someone might climb a ladder or use a pole to hold the charging head to the charging socket of the lithium battery. This entire charging process requires external tools, is time-consuming, labor-intensive, and very inconvenient.

[0003] Chinese Patent Publication (Announcement) No.: CN112448442B, Patent Title: Curtain Driver Charging Method, which discloses "a curtain driver charging method, characterized in that it includes: a clamping and bearing component disposed on the curtain body and close to the lower beam component... the charging transmitting component detaches from the charging receiving component; the clamping and bearing component detaches from the curtain body" technical solution, achieving the technical effect of "

[0023] compared with the prior art, by controlling the movement of the curtain body, utilizing the movement of the curtain body... it saves time and effort, is very convenient, and improves the user experience".

[0004] Although it "charges the drive unit by controlling the movement of the curtain body and using the movement of the curtain body to connect the charging transmitting component on the clamping and supporting component with the charging receiving component," this method only charges the drive unit within this electric curtain, which is a one-to-one charging method. If a one-to-one charging mode is used in a large house with multiple sets of electric curtains, the same number of power supply / charging cables as the number of electric curtains needs to be configured, increasing production costs. Utility Model Content

[0005] The purpose of this invention is to provide an RS485 charging control system for electric curtains to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: an RS485 charging control system, characterized in that: it includes a 485 controller, the 485 controller including a power supply terminal +12V, a ground terminal GND, a differential signal terminal A, and a differential signal terminal B, the power supply terminal +12V of the 485 controller being connected to the power supply terminals +12V of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor via a network cable, and the ground terminal GND of the 485 controller being connected to... The grounding terminals GND of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor are connected via network cables. The differential signal terminal A of the 485 controller is connected via network cables to the differential signal terminals A of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor. The differential signal terminal B of the 485 controller is connected via network cables to the differential signal terminals B of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor.

[0007] Compared with existing technologies, the advantages of this invention are as follows: This one-to-many charging mode allows a single wire (network cable) to complete both communication and power supply / charging. Multiple curtain motors are connected to the main control device via a single network cable, and the power of multiple curtain motors is communicated through the network cable. The main control device monitors the power of the curtain motors via the RS485 communication protocol on the network cable. When the power of a curtain motor is less than the charging threshold, the communication control of the low-power curtain motor begins to charge. This solves the problem of separating the traditional communication control and power supply / charging wires, reduces the installation difficulty of the electrical structure of electric curtains, lowers production costs, and saves hardware resources.

[0008] As an improvement of this utility model, the charging control system is equipped with a low-power standby mode to reduce energy consumption during non-charging periods. The purpose of this design is to save power and reduce energy consumption when the charging control system is in standby or sleep mode.

[0009] As an improvement of this utility model, the charging control system is equipped with an automatic overcharge protection program. The purpose of this design is to ensure that when the lithium battery voltage reaches or exceeds the set upper limit, the charging control system can promptly cut off the charging circuit to prevent damage to the lithium battery due to overcharging. Attached Figure Description

[0010] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0011] In the attached diagram:

[0012] Figure 1 This is a circuit connection diagram of the RS485 charging control system for electric curtains described in this utility model. Detailed Implementation

[0013] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0014] Example 1

[0015] Please refer to Figure 1 .

[0016] This embodiment provides an RS485 charging control system for electric curtains, including a 485 controller.

[0017] The 485 controller includes a +12V power supply terminal, a GND ground terminal, a differential signal terminal A, and a differential signal terminal B. The +12V power supply terminal of the 485 controller is connected to the +12V power supply terminals of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor via a network cable. The GND ground terminal of the 485 controller is connected to the GND ground terminals of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor via a network cable. The differential signal terminal A of the 485 controller is connected to the differential signal terminals A of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor via a network cable. The differential signal terminal B of the 485 controller is connected to the differential signal terminals B of the first lithium battery motor, the second lithium battery motor, and the Nth lithium battery motor via a network cable.

[0018] Furthermore, the charging control system is equipped with a low-power standby mode to reduce energy consumption during non-charging periods. When the charging control system is in standby or hibernation mode, it can save power and reduce energy consumption.

[0019] Furthermore, the charging control system is equipped with an automatic overcharge protection program. When the lithium battery voltage reaches or exceeds the set upper limit, the charging control system can promptly cut off the charging circuit to prevent damage to the lithium battery due to overcharging. The low-power standby mode and the overcharge protection program are existing technologies and will not be elaborated upon here.

[0020] It should be noted that the charging voltage in the charging control system can be 12V, 5V, 24V, etc., and the charging voltage depends on the voltage of different lithium batteries.

[0021] The beneficial effects of this utility model are as follows: In this one-to-many charging mode, a single wire (network cable) can complete the communication + power supply / charging method. Multiple curtain motors are connected to the main control device through a single network cable and communicate the power of multiple curtain motors through the network cable. The main control monitors the power of the curtain motors through the network cable with RS485 communication protocol. When the power of a curtain motor is less than the charging threshold, the communication control of the curtain motor with insufficient power starts charging. This solves the problem of the separation of traditional communication control and power supply / charging wires, reduces the installation difficulty of the electrical structure of electric curtains, reduces production costs, and saves hardware resources.

[0022] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An RS485 charging control system for electric curtains, characterized in that: The system includes a 485 controller, which includes a +12V power supply terminal, a GND ground terminal, a differential signal terminal A, and a differential signal terminal B. The +12V power supply terminal of the 485 controller is connected to the +12V power supply terminals of the first, second, and Nth lithium battery motors via a network cable. The GND ground terminal of the 485 controller is connected to the GND ground terminals of the first, second, and Nth lithium battery motors via a network cable. The differential signal terminal A of the 485 controller is connected to the differential signal terminals A of the first, second, and Nth lithium battery motors via a network cable. The differential signal terminal B of the 485 controller is connected to the differential signal terminals B of the first, second, and Nth lithium battery motors via a network cable.

2. The RS485 charging control system for electric curtains according to claim 1, characterized in that: The charging control system is equipped with a low-power standby mode to reduce energy consumption during non-charging periods.

3. The RS485 charging control system for electric curtains according to claim 1, characterized in that: The charging control system is equipped with an automatic overcharge protection program.

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