Ultrathin photovoltaic electric control louver glass window for ship

Abstract

An ultrathin photovoltaic electric control glass shutter for a ship comprises inner glass, outer glass, a window frame, a shutter blind, a shutter driving assembly, an energy storage battery, a photovoltaic assembly and a control box and further comprises an AI voice control circuit board, an electric energy conversion, voltage stabilization and battery management circuit board, a multi-protocol signal receiving and decoding circuit board and a module cooperative control circuit board. The AI voice control circuit board, the electric energy conversion and voltage stabilization circuit board, the battery management circuit board, the multi-protocol signal receiving and decoding circuit board and the module cooperative control circuit board are vertically stacked in the control box through board-to-board connectors. Space is fully utilized, thickness and weight of the window are reduced, cabin space is saved, structural strength is kept, and the window adapts to harsh environments of ships.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ship photovoltaic electric control louver glass windows, and particularly relates to improvement of photovoltaic electric control louver glass windows. BACKGROUND

[0002] In the field of ship design and construction, the window system not only concerns the comfort of passengers and crew, but also directly affects the energy efficiency and environmental performance of the ship. With the progress of the times, the performance and function requirements of ship windows are increasing, and users are increasingly demanding energy saving and intelligence.

[0003] The electric control louver glass window has the characteristics of one-key control of louver opening and closing angle, precise adjustment of light and privacy, sun-shading and heat-insulating in summer, light-transmitting and warm-keeping in winter, and comfort throughout the year, which is very suitable for ship use.

[0004] In actual use, the high intelligence and energy saving of the electric control louver glass window bring the following technical problems: the control device is mostly designed in a separate and dispersed manner, the control modules (AI interaction, power supply voltage stabilization, signal reception, etc.) are scattered in layout, and the integration degree is low, resulting in a large volume that cannot adapt to the narrow installation space inside the ship; at the same time, a large frame is needed to place the control device, occupying the light-transmitting area of the glass.

[0005] Therefore, it is urgent to design a stable and reliable ship ultra-thin photovoltaic electric control louver glass window to meet the control requirements of small size and high integration of ship glass. SUMMARY

[0006] In view of the above technical problems, the application provides a ship ultra-thin photovoltaic electric control louver glass window, which fully utilizes the space, reduces the thickness and weight of the window, saves the cabin space, and at the same time maintains the structural strength, and adapts to the harsh environment of the ship.

[0007] The technical scheme of the application is: a ship ultra-thin photovoltaic electric control louver glass window, comprising an inner glass, an outer glass, a window frame, a louver curtain, a louver drive assembly, an energy storage battery, a photovoltaic assembly and a control box, characterized in that it further comprises an AI voice control circuit board, an electric energy conversion, voltage stabilization and battery management circuit board, a multi-protocol signal receiving and decoding circuit board and a module cooperative control circuit board, the AI voice control circuit board, the electric energy conversion and voltage stabilization circuit board, the battery management circuit board, the multi-protocol signal receiving and decoding circuit board and the module cooperative control circuit board are vertically stacked in the control box through a board-to-board connector; The electric energy conversion, voltage stabilization and battery management circuit board adopts a Buck-Boost synchronous rectification topology structure; The module cooperative control circuit board adopts a FPGA programmable logic chip; The photovoltaic assembly is electrically connected with the electric energy management circuit board.

[0008] Preferably, the heat dissipation assembly further comprises a plurality of heat dissipation fins and a heat dissipation fin support, the heat dissipation fins are respectively arranged on the back of the AI voice control circuit board and the multi-protocol signal receiving and decoding circuit board, and the other end of the heat dissipation fins is connected with the heat dissipation fin support, and the heat dissipation fin support is fixed on the bottom box.

[0009] Preferably, the heat dissipation fin support is connected with a heat dissipation adjusting assembly, and the heat dissipation adjusting assembly comprises a heat conduction fin and a plurality of memory alloy springs, one side of the heat conduction fin is connected with the heat dissipation fin support through the memory alloy springs, and the other end of the heat conduction fin extends out of the control box.

[0010] Preferably, the control box comprises a bottom box and a box cover, and the bottom box and the box cover are made of aluminum alloy material and are provided with an anodized layer on the surface.

[0011] Preferably, the environmental perception sensor is arranged on the window frame, and the environmental perception sensor and the module cooperative control circuit board are electrically connected.

[0012] Preferably, the inner surface of the inner glass is attached with a flexible electronic display film, and the flexible electronic display film and the control box are electrically connected.

[0013] Preferably, the electric energy conversion, voltage stabilization and battery management circuit board comprises a power path control unit, a battery equalization protection and charge-discharge double-loop control unit and a Buck-Boost synchronous rectification unit, and supports photovoltaic power storage and residual power dynamic monitoring.

[0014] Preferably, the multi-protocol signal receiving and decoding circuit board is integrated with a WiFi6, Bluetooth 5.2 dual-mode communication unit and an RS485 interface.

[0015] Preferably, the external controller is further provided with a microphone, a sound device and a control button, and the external controller is electrically connected with the module cooperative control circuit board through a flexible electrical connecting piece.

[0016] The beneficial effects of the present application are: for the narrow installation space of the ship and the complex marine environment, the AI voice interaction, electric energy conversion, energy storage management, wireless communication and cooperative control five core function modules are integrated through high-density PCB vertical stacking, full function module integration and ultra-thin structure design are achieved, and the installation space of the top of the hollow glass in the ship is adapted. The FPGA programmable logic and the fuzzy control algorithm are used to realize the real-time linkage of the voice instruction, the environmental perception and the photovoltaic electric control glass, improve the control response speed, the electric energy conversion efficiency, reduce the photovoltaic power consumption, guarantee the long-term stable operation of the product, and meet the reliability requirements of the ship scene. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the exploded structure of the present application; Figure 3 is a schematic diagram of the exploded structure of another direction of the present application; Figure 4 is a schematic diagram of the exploded structure of the control box; Figure 5 is a schematic diagram of the exploded structure of another direction of the control box; Figure 6 is a circuit diagram of the AI voice control circuit board chip part; Figure 7 is a circuit diagram of the AI voice control circuit board noise reduction unit; Figure 8 is a circuit diagram of the AI voice control circuit board offline voice storage unit and voice acquisition unit; Figure 9 is a power path control unit circuit diagram of the electric energy conversion, voltage stabilization and battery management circuit board; Figure 10 is a battery equalization protection and charge-discharge double-loop control unit circuit diagram of the electric energy conversion, voltage stabilization and battery management circuit board; Figure 11 is a Buck-Boost synchronous rectification unit circuit diagram of the electric energy conversion, voltage stabilization and battery management circuit board; Figure 12 is a circuit diagram of the multi-protocol signal receiving and decoding circuit board; Figure 13 is a FPGA chip unit circuit diagram of the module cooperative control circuit board; Figure 14 is a power down unit circuit diagram of the module cooperative control circuit board; Figure 15 is a FPGA clock, bus unit circuit diagram of the module cooperative control circuit board; Figure 16 is a circuit diagram of the external controller; Figure 17 is a circuit diagram of the environment sensor; Figure 18 is a schematic diagram of the control box structure under low temperature state of embodiment 2; Figure 19 is a schematic diagram of the control box structure under high temperature state of embodiment 2; Fig. 1 is the inner glass, 11 is the flexible electronic display film, 2 is the outer glass, 3 is the window frame, 31 is the environmental perception sensor, 4 is the shutter, 5 is the photovoltaic module, 6 is the control box, 61 is the AI voice control circuit board, 62 is the power conversion, voltage stabilization and battery management circuit board, 63 is the multi-protocol signal receiving and decoding circuit board, 64 is the module collaborative control circuit board, 65 is the bottom box, 66 is the box cover, 67 is the heat dissipation component, 671 is the heat dissipation fin, 672 is the heat dissipation fin support, 68 is the heat dissipation adjustment component, 681 is the heat conduction fin, 682 is the memory alloy spring, 7 is the shutter drive component, 8 is the energy storage battery, 9 is the board connector, 10 is the controller. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] Figures 1 to 5 A kind of ship is used ultra-thin photovoltaic electric control louver glass window, including inner glass 1, outer glass 2, window frame 3, shutter 4, shutter drive component 7, energy storage battery 8, photovoltaic module 5 and control box 6, also include AI voice control circuit board 61, power conversion, voltage stabilization and battery management circuit board 62, multi-protocol signal receiving and decoding circuit board 63 and module collaborative control circuit board 64, AI voice control circuit board 61, power conversion, voltage stabilization and battery management circuit board 62, multi-protocol signal receiving and decoding circuit board 63 and module collaborative control circuit board 64 are vertically stacked in control box 6 by board-to-board connector 9 between them.

[0021] The power conversion, voltage stabilization and battery management circuit board 62 adopts Buck-Boost synchronous rectification topology structure; The electric energy conversion, voltage stabilization and battery management circuit board 62 comprises a power path control unit, a battery equalization protection and charge-discharge double circuit control unit and a Buck-Boost synchronous rectification unit, and supports the preferential storage of photovoltaic electric energy and the dynamic monitoring of residual electric quantity.

[0022] The module cooperative control circuit board 64 adopts an FPGA programmable logic chip and is provided with a fuzzy control algorithm. The photovoltaic module 5 is electrically connected with the electric energy management circuit board 62.

[0023] In the embodiment, the control box 6 comprises a bottom box 65 and a box cover 66, the bottom box 65 and the box cover 66 are made of aluminum alloy, the two are connected by buckling, and the surface is provided with an anodization layer. More corrosion resistant.

[0024] In the embodiment, the environmental perception sensor 31 is arranged on the window frame 3, and the environmental perception sensor 31 is electrically connected with the module cooperative control circuit board. The circuit diagram is shown in Figure 17 .

[0025] In the embodiment, the inner surface of the inner glass 1 is attached with a flexible electronic display film 11, and the flexible electronic display film 11 is electrically connected with the module cooperative control circuit board 64.

[0026] In the embodiment, the external controller 10 is further included, the external controller 10 is internally provided with a microphone, a sound device and a control button, and the external controller 10 is electrically connected with the module cooperative control circuit board 64 through a flexible electrical connecting piece. The circuit diagram is shown in Figure 16 .

[0027] Referring to Figures 6 to 8 , the AI voice control module 61 adopts an STM32H743 (ARM Cortex-M7), which runs a voice recognition algorithm, analyzes voice instructions, communicates with the FPGA control hub of the module cooperative control circuit board, and distributes control signals; the noise reduction voice chip adopts an IA8201 noise reduction audio chip, which performs noise reduction processing on the voice signals collected by a MEMS microphone (IM72D128V01), suppresses wind and waves and mechanical noise in the marine environment, and improves the voice recognition accuracy; the offline voice library adopts a Flash storage chip (W25Q128), which stores a ship scene exclusive offline voice library (such as instructions like “open the louver” “adjust the light transmittance” “increase the volume”).

[0028] In the embodiment, the AI voice function flow is as follows: Microphone → noise reduction → voice recognition → instruction analysis → sending to the module cooperative control circuit board.

[0029] 1) MEMS microphone (IM72D128V01) collects voice signals and transmits them to a noise reduction audio chip (IA8201) for noise reduction processing; 2) The noise-reduced voice signal is transmitted to a microprocessor (STM32H743) and matched with an offline voice library (W25Q128) to identify the instruction type; 3) The microprocessor (STM32H743) analyzes the instruction content (such as "adjust the light transmittance of the electrochromic film to increase" or "open the blinds") and sends standardized control signals to the control hub of the module cooperative control circuit board; 4) The multi-protocol signal receiving and decoding circuit board supports online AI voice query functions such as querying battery remaining capacity and environmental temperature. After the microprocessor (STM32H743) obtains the data, it provides voice feedback (requires cooperation with the sound system).

[0030] The AI voice control circuit board 61 realizes voice wake-up, instruction recognition, instruction analysis, and control signal distribution in a ship scenario, supporting offline voice interaction and AI query.

[0031] Referring to Figure 12 , the multi-protocol signal receiving and decoding circuit board 63 integrates a WiFi6, Bluetooth 5.2 dual-mode communication unit, and an RS485 interface, supporting online / offline control signal reception and decoding. It uses frequency hopping communication technology to resist electromagnetic interference.

[0032] In this embodiment, a WiFi6 + Bluetooth 5.2 dual-mode communication microprocessor (ESP32-WROOM-32U) is used, which integrates WiFi6 and Bluetooth 5.2 protocols, supports wireless control signal reception from mobile phone APP and ship central control system, and has transmission distance adapted to the space requirements of the ship. It supports Bluetooth near-field control in offline mode; it has a built-in decoding processor that decodes the received wireless / wired control signals and converts them into standardized signals recognizable by the FPGA control hub of the module cooperative control circuit board.

[0033] In this embodiment, an RS485 interface chip (MAX485) is also provided, which supports long-distance communication and can communicate with other wired devices of the ship (such as navigation systems and monitoring equipment) to receive extended control instructions.

[0034] In this embodiment, the working mode of the multi-protocol signal receiving and decoding circuit board 63 is as follows: - Wireless (online) mode: receive cloud, mobile phone or ship central control system instructions through WiFi / Bluetooth, and decode them with the communication microprocessor (ESP32); - Offline mode: receive local control signals (i.e. external device control instructions) through the RS485 interface, and decode them with the communication microprocessor (ESP32); - Control signal decoding through UART to send to the module coordination control circuit board FPGA control hub, and other input signals to coordinate the implementation; The multi-protocol signal receiving and decoding circuit board 63 supports the reception and decoding of online / offline control signals, realizes wireless remote control and wired extended control, and is suitable for the multi-device linkage scene of a ship.

[0035] Referring to Figures 9 to 11 In the embodiment, the energy storage battery 8 is arranged in the upper frame of the window body 3, and the photovoltaic module 5 is arranged between the upper frame and the outer glass 2. The energy storage battery 8 and the photovoltaic module 5 are electrically connected with the power conversion, voltage stabilization and battery management circuit board 62. The power path control unit adopts a power path controller (LTC4416), realizes the “photovoltaic priority power supply” logic: when the photovoltaic power supply is sufficient, the system is preferentially powered and the lithium battery is charged, and when the photovoltaic power supply is insufficient, the lithium battery backup power supply is automatically switched; the battery equalization protection and charge-discharge dual-loop control unit includes a charge-discharge dual-loop control chip (BQ24610) and a battery equalization and safety monitoring chip (BQ76905), controls the lithium battery charge-discharge process, cooperates with the power path controller (LTC4416) to realize the charge priority management, and realizes the real-time monitoring of the lithium battery voltage, current and temperature, realizes the cell equalization, avoids the single cell overcharge / overdischarge, protects the battery life, realizes the overcharge, overdischarge and short circuit three-protection; the Buck-Boost synchronous rectification unit adopts a synchronous rectification Buck-Boost chip (LTC3789), receives the 7-35V input of the photovoltaic panel 7, and outputs 5V / 12V dual stable voltage through the synchronous rectification topology structure, the voltage stabilization precision is ±0.05V, and different module power supply demands are adapted.

[0036] In the embodiment, the working process of the power conversion, voltage stabilization and battery management is as follows: 1) The power path controller (LTC4416) detects the photovoltaic power supply state: If the photovoltaic power supply voltage is stable and the power is sufficient, the system is preferentially powered, and the lithium battery is charged through the charge-discharge dual-loop control chip (BQ24610); If the photovoltaic power supply is insufficient (such as overcast, night), the LTC4416 automatically switches to the lithium battery power supply to ensure the continuous operation of the system; 2) The photovoltaic panel input 7-35V voltage is converted into 5V / 12V stable voltage through the synchronous rectification Buck-Boost chip (LTC3789); 3) The battery equalization and safety monitoring chip (BQ76905) monitors the lithium battery state in real time, cuts off the charging circuit when the voltage reaches the overcharge threshold, and cuts off the discharging circuit when the voltage reaches the overdischarge threshold, so as to avoid the damage of the battery.

[0037] The power conversion, voltage stabilization and battery management circuit board 62 realizes intelligent power supply switching of photovoltaic and lithium battery, efficient power conversion, battery state management and safety protection, and guarantees stable power supply of the system in the marine environment.

[0038] Referring to Figures 13 to 15 The module cooperative control circuit board 64 adopts an FPGA programmable logic chip, and a fuzzy control algorithm is preset. AI voice instructions, environmental sensing signals and the cooperative linkage of each functional module (electrochromic, louver driving, display system) are realized, and the existing fixed logic control patent is avoided.

[0039] In the embodiment, the FPGA programmable logic chip uses Xilinx XC6SLX9-2TQG144C, which has rich I / O interfaces and programmable logic resources, and is suitable for multi-module communication and control signal output.

[0040] In the embodiment, the FPGA receives AI voice module and wireless communication module instructions through a UART interface, connects environmental sensing sensors (such as light intensity sensor BH1750, infrared radiation intensity sensor MLX90614, human body sensing sensor VL53L5CX, etc.) through an I2C interface, and receives control key instructions of an external key switch box through a GPIO interface. The control keys in the embodiment are provided with mode (MODE), switch (POWER), stop (STOP), up / down (UP / DOWN).

[0041] In the embodiment, the FPGA outputs signals through a PWM / GPIO interface to control electrochromic dimming glass (driver DRV8833) and louver motor (motor driver L6202); controls flexible electronic display film (display driver SSD1351) through an SPI interface; and controls a sound device (sound controller TDA7377) through an I2S / GPIO interface.

[0042] The FPGA control center control logic of the module cooperative control circuit board 64: 1) The fuzzy control algorithm realizes multi-source signal input (voice, environment, key), real-time analysis and dynamic logic generation → intelligent linkage of multiple outputs (actuators); 2) Avoid fixed logic control defects and support dynamic strategy adjustment: In the embodiment, the core of the fuzzy control algorithm is: 1) Fuzzification of input: convert multi-source input signals such as voice instructions, environmental sensor data (light intensity, temperature, distance, i.e. human body), key instructions and wireless control instructions into fuzzy variables (such as “light intensity”, “moderate temperature”, “short distance”); 2) Fuzzy rule inference: Based on the pre-set ship scene rule library (such as "automatically reduce the light transmittance of the electrochromic film when the light is strong" "voice command priority over button command"), logical reasoning is carried out to generate control decisions; 3) Output quantity clarification: Convert fuzzy decisions into precise control signals (such as light transmittance adjustment signals, louver lifting signals); 4) Dynamic adaptation: Support real-time adjustment of control logic according to changes in marine environment (such as light mutation caused by wind and waves), improve system adaptability.

[0043] The working process of the module cooperative control circuit board 64 is as follows: 1) Receive AI voice, multi-protocol wireless communication, environmental perception, and control button input signals; 2) Fuse and analyze multi-source signals through fuzzy control algorithm to generate cooperative control logic; 3) Output control signals to electrochromic film dimming drive, louver drive, flexible display film drive, and audio system drive; 4) Receive external feedback signals, dynamically adjust control strategy, and realize closed-loop control.

[0044] In this embodiment, the modules are vertically stacked through the board-to-board connector 9, and the overall height can be controlled within 30 mm; the inside of the shell is provided with a heat-conducting silicone pad, which is naturally cooled through the glass cavity, and the cooling efficiency is improved by 30% compared with traditional air cooling. Reduce the thickness of the window, while increasing the amount of light entering.

[0045] Embodiment 2 Referring to Figure 18 and Figure 19 In this embodiment, the heat dissipation assembly 67 is also included, which includes a plurality of heat dissipation fins 671 and a heat dissipation fin support 672. The heat dissipation fins 671 are respectively connected to the back of the AI voice control circuit board 61 and the multi-protocol signal receiving and decoding circuit board 63, and the other end is connected to the support. The heat dissipation fin support 672 is fixed on the bottom box 66. Additional heat dissipation is added at the parts that are easily disturbed to improve stability.

[0046] The heat dissipation fin support 672 is connected to the heat dissipation adjusting assembly 68, which includes a heat conduction fin 681 and a memory alloy spring 682. One side of the heat conduction fin 681 is connected to the heat dissipation fin support 672 through the memory alloy spring 682, and the other end of the heat conduction fin 681 extends out of the control box 6. The heat conduction fin 681 and the heat dissipation fin support 672 are provided with mounting holes corresponding to each other to ensure that they can be completely attached.

[0047] In the embodiment, the memory alloy spring 682 is used, when the internal temperature is too high, the memory alloy spring 682 retracts the heat-conducting sheet 681 to be attached to the heat-dissipating sheet support 672 to increase heat dissipation, when the internal temperature is too low, the memory alloy spring 682 pushes out the heat-conducting sheet 681 to reduce heat dissipation, the heat dissipation is adjusted according to the internal temperature, and the internal components are ensured to be in stable working temperature.

[0048] The application is not limited to the above-mentioned embodiments, and on the basis of the technical solutions disclosed in the application, the skilled in the art can make some replacements and deformations to some technical features without creative labor according to the disclosed technical content, and the replacements and deformations are within the protection scope of the application.

Claims

1. A super thin photovoltaic electric control louver glass window for ship, comprising inner glass, outer glass, window frame, louver, louver drive assembly, energy storage battery, photovoltaic assembly and control box, characterized in that, It also includes an AI voice control circuit board, an electric energy conversion, voltage stabilization and battery management circuit board, a multi-protocol signal receiving and decoding circuit board, and a module cooperative control circuit board. The electric energy conversion, voltage stabilization and battery management circuit board adopts a Buck-Boost synchronous rectification topology structure. The module cooperative control circuit board adopts an FPGA programmable logic chip. The photovoltaic module and the electric energy management circuit board are electrically connected.

2. A super thin photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, It also includes a heat dissipation assembly, which includes a plurality of heat dissipation fins and a heat dissipation fin support, the heat dissipation fins are respectively arranged on the back of the AI voice control circuit board and the multi-protocol signal receiving and decoding circuit board, and the other end is connected with the heat dissipation fin support, and the heat dissipation fin support is fixed on the bottom box.

3. A super-slim photovoltaic electrically controlled louver glass window for a ship according to claim 2, characterized in that, The heat dissipation fin support is connected with a heat dissipation adjusting assembly, the heat dissipation adjusting assembly includes a heat conduction fin and a plurality of memory alloy springs, one side of the heat conduction fin is connected with the heat dissipation fin support through the memory alloy springs, and the other end of the heat conduction fin extends out of the control box.

4. The ultra-thin photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, The control box includes a bottom box and a box cover, the bottom box and the box cover are made of aluminum alloy material, and the surface is provided with an anodic oxidation layer.

5. The ultra-thin photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, It also includes an environment perception sensor, which is arranged on the window frame, and the environment perception sensor and the module cooperative control circuit board are electrically connected.

6. The ultra-thin photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, The inner surface of the inner glass is attached with a flexible electronic display film, and the flexible electronic display film and the control box are electrically connected.

7. A super thin photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, The electric energy conversion, voltage stabilization and battery management circuit board includes a power path control unit, a battery equalization protection and charge-discharge double circuit control unit, and a Buck-Boost synchronous rectification unit, and supports photovoltaic electric energy priority storage and residual electric quantity dynamic monitoring.

8. A super-slim photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, The multi-protocol signal receiving and decoding circuit board integrates a WiFi6, Bluetooth5.2 dual-mode communication unit and an RS485 interface.

9. A super-slim photovoltaic electrically controlled louver glass window for a ship according to claim 1, characterized in that, It also includes an external controller, which is provided with a microphone, a sound device and a control button, and the external controller is electrically connected with the module cooperative control circuit board through a flexible electrical connecting piece.

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