A simple and easy-to-use motorized expansion controller for a recreational vehicle

Abstract

The utility model relates to a house car technical field especially, more particularly to a simple and easy house car electric expansion controller, including main control unit, communication module, control button, wherein, main control unit, including through wire interconnection's sensor, power, synchronous signal, PWM output, control relay, control chip, communication module, through wire interconnection's CAN communication module, wireless transceiver module, control button, including manual control button and pilot lamp, manual control button includes two sides from reset boat type switch and reset metal round button, and the pilot lamp is trouble pilot lamp. The utility model's expansion controller electrification, system integration degree is high, and the compact structure is compact, and the main equipment operation can only be by a button complete generation, the working condition of device can be shown through host computer or remote controller, and the compact structure is small, and the installation is convenient, saves the car space, especially suitable for the scene of the big space demand such as house car.

Description

Technical Field

[0001] This utility model relates to the field of RV technology, and in particular to a simple and easy-to-use RV electric extension controller. Background Technology

[0002] The interior space of a motorhome is limited, and traditional manual extension mechanisms take up a lot of space. They rely on mechanical mechanisms to push and pull manually, which is laborious to open and close and cannot lock automatically, posing a safety hazard.

[0003] For the reasons mentioned above, it is necessary to design and improve a simple, easy-to-use, and space-saving electric extension controller for RVs. Utility Model Content

[0004] The purpose of this invention is to provide a simple and easy-to-use electric extension controller for RVs to improve the problems existing in the prior art.

[0005] A simple and easy-to-use RV electric extension controller includes a main controller, a communication module, and control buttons. The main controller includes sensors, a power supply, a synchronization signal, a PWM output, a control relay, and a control chip that are interconnected by wires. The communication module includes a CAN communication module and a wireless transceiver module that are interconnected by wires. The control buttons include a manual control button and an indicator light. The manual control button includes a self-resetting rocker switch on both sides and a self-resetting circular metal button. The indicator light is a fault indicator light.

[0006] More preferably, the main controller is connected to the communication module and the control button via two sets of cables respectively.

[0007] More preferably, the sensor is used to sense whether the left and right sides of the extension mechanism have extended or retracted into place, and then inputs the signal to the main controller through wires; the power supply is used to power the entire controller in working and standby states through power lines; the synchronization signal is obtained by the Hall signal feedback from the two actuators, which is then controlled by the control chip through wires to obtain the movement stroke of the two actuators; the PWM output is used to control the speed of the two actuators, and the PWM wave output by the control chip controls the rapid switching frequency of two MOSFETs through wires. The MOSFETs are connected in series on the power lines of the actuators, and the rapid switching frequency of the MOSFETs adjusts the voltage to control the speed of the actuators; the control relay controls the forward and reverse rotation of the actuators by changing their on / off state to change the positive and negative terminals of the actuators; the control chip is used to process input and output signals and control the operation of the entire device.

[0008] More preferably, the CAN communication module is responsible for handling the communication between the host computer and the electric expansion controller, allowing the host computer to control the electric expansion controller and display the real-time working status of the electric expansion controller through the communication line; the wireless transceiver module is responsible for handling the communication between the wireless remote control and the electric expansion controller, allowing the wireless remote control to control the electric expansion controller through the 2.4G wireless signal.

[0009] More preferably, the two self-resetting rocker switches, in manual mode, will control the extension mechanism to extend or retract when pressed intermittently, and will stop the extension mechanism when released. Double-clicking to extend or retract will enter automatic mode, and the extension mechanism will start to extend or retract automatically. The self-resetting metal circular button, when a fault occurs, will reset the extension mechanism by pressing and holding the self-resetting metal circular button for 10 seconds. The fault indicator light is used to indicate what fault has occurred in the electric extension controller.

[0010] Compared with the prior art, the present invention has the following advantages: the extended controller of the present invention is electrified, the system has a high degree of integration and a compact structure, and the main equipment operation can be completed by just one button; the working status of the device can be displayed by a host computer or remote control, the structure is compact and small in size, the installation is convenient, and the space inside the vehicle is saved, making it particularly suitable for scenarios with large space requirements such as motorhomes. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a flowchart of the present invention; Figure 3 This is the electrical schematic diagram of this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but does not exclude other elements or objects.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] This device frees up space next to the extension mechanism in the RV's driver's area, allowing for the installation of various other equipment and saving rear interior space. Furthermore, because it uses an electric mechanism, extension is effortless, quick, and safe.

[0016] like Figures 1-3 As shown, a simple and easy-to-use electric extension controller for RVs includes a main controller, a communication module, and control buttons. The main controller is connected to the communication module and the control buttons via two sets of cables. The main controller 1-1 includes sensors, a power supply, a synchronization signal, a PWM output, a control relay, and a control chip. The sensors detect whether the left and right sides of the extension mechanism have extended or retracted into place, and then input the signals to the main controller via wires. The power supply provides power to the entire controller during operation and standby. The synchronization signal is obtained by feeding back Hall effect signals from the two actuators, which are then transmitted through wires to the control chip to determine the movement stroke of the two actuators. The PWM output controls the speed of the two actuators. The PWM wave output by the control chip controls the rapid switching frequency of two MOSFETs connected in series on the power lines of the actuators. The rapid switching frequency of the MOSFETs adjusts the voltage to control the speed of the actuators. The control relay controls the forward and reverse rotation of the actuators by changing their on / off states to change the polarity of the actuators. The control chip processes the input and output signals and controls the operation of the entire device.

[0017] Communication modules 1-2 include a CAN communication module and a wireless transceiver module interconnected by wires. The CAN communication module is responsible for handling communication between the host computer and the electric expansion controller, allowing the host computer to control the electric expansion controller and display its real-time operating status via the communication line. The wireless transceiver module is responsible for handling communication between the wireless remote control and the electric expansion controller, allowing the wireless remote control to control the electric expansion controller via a 2.4G wireless signal.

[0018] Control buttons 1-3 include manual control buttons and indicator lights. The manual control buttons include two self-resetting rocker switches and a self-resetting circular metal button. The indicator lights are fault indicator lights. The two self-resetting rocker switches are initially horizontal, with the two contacts at the ends being the extension and retraction positions, respectively. In manual mode, briefly pressing either self-resetting rocker switch will control the extension mechanism to extend or retract on one side. Releasing the two self-resetting rocker switches resets the mechanism to its initial state and stops the extension mechanism from moving. Double-clicking the extension or retraction position enters automatic mode, and the extension mechanism begins to extend or retract automatically. The self-resetting circular metal button is pressed and held for 10 seconds to enter reset mode. The fault indicator light is used to indicate what fault has occurred in the electric extension controller.

[0019] Simply turn on the power, press and hold the self-resetting rocker switches on both sides to extend or retract the extension mechanism, and release the buttons to stop it. Simple and effortless, with a compact and space-saving design, it brings new possibilities to the already cramped RV space.

[0020] Working principle: Manual Mode: Upon power-on, the control buttons default to manual mode. Pressing either of the two self-resetting rocker switches sends a signal to the controller to extend or retract. The main controller then controls the motor speed synchronously based on the Hall effect signal from the actuator. It controls the actuator's forward and reverse rotation by adjusting the positive and negative terminals of the actuator via a relay. A proximity sensor controls the actuator's forward and reverse travel to prevent over-rotation. In case of a fault, the controller will stop both PWM outputs, and the fault indicator light will flash. The number of flashes indicates the corresponding fault. After troubleshooting, press and hold the self-resetting metal circular button for 10 seconds to enter reset mode. Normal operation can resume only after a complete reset.

[0021] Automatic Mode: After powering on, double-clicking the extend or retract button will put the controller into automatic mode. In automatic mode, the actuator motors will continuously rotate forward or reverse until the extension mechanism reaches the proximity switch's sensing point. At this point, the control chip receives the proximity switch's position signal and stops the two PWM outputs, causing both actuator motors to stop. During automatic extension and retraction, the controller continuously outputs PWM synchronously to both actuator motors based on the Hall signal feedback. The controller adjusts the positive and negative terminals of the two actuator motors via a relay to control their forward and reverse rotation. The proximity switch controls the forward and reverse travel of the actuator motors, preventing over-rotation. If a fault occurs, the controller will stop the two PWM outputs, and the fault indicator light will flash. The number of flashes indicates the corresponding fault. After troubleshooting, the controller enters reset mode. Normal operation can only resume after a complete reset.

[0022] Reset Mode: When the controller malfunctions, it will stop both PWM outputs and halt the motors. Press and hold the self-reset metal circular button for 10 seconds to enter reset mode. Continue holding the button; the extension mechanism will retract. Once the controller receives the left and right position signals from the mechanism, it will automatically calibrate the two motor strokes to zero, and the fault indicator light will turn off. Normal operation is then possible.

[0023] Remote control mode: The host computer connects to the communication module via a communication cable, which converts the signal to LIN communication. The computer then interacts with the controller via the communication cable, enabling all button functions and displaying some basic real-time operating status and fault information of the controller. Wireless remote control uses a 2.4G wireless signal to connect to the communication module, which converts the signal to LIN communication. The computer then interacts with the controller via a communication cable, enabling all button functions and displaying some basic real-time operating status and fault information of the controller.

[0024] Although the embodiments of this utility model have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of this utility model as described in the claims. Moreover, the utility model described herein may have other embodiments and can be implemented or realized in various ways.

Claims

1. A simple and easy-to-use electric extension controller for RVs, characterized in that, Includes a main controller, communication module, and control buttons; among which, The main controller includes sensors, power supply, synchronization signal, PWM output, control relays, and control chip that are interconnected by wires; The communication module includes a CAN communication module and a wireless transceiver module that are interconnected by wires. The control buttons include manual control buttons and indicator lights. The manual control buttons include two self-resetting rocker switches and a self-resetting metal circular button. The indicator lights are fault indicator lights.

2. The simple and easy-to-use RV electric extension controller according to claim 1, characterized in that, The main controller is connected to the communication module and the control buttons via two sets of cables.

3. The simple and easy-to-use RV electric extension controller according to claim 1, characterized in that, The sensors are used to detect whether the left and right sides of the extension mechanism have extended or retracted into place, and then input the signals to the main controller via wires; the power supply is used to power the entire controller in both working and standby states via power lines; the synchronization signal is obtained by feedback from the Hall signals of the two actuators, which are then controlled by the control chip via wires to obtain the movement stroke of the two actuators; the PWM output is used to control the speed of the two actuators. The PWM wave output by the control chip controls the rapid switching frequency of two MOSFETs via wires. The MOSFETs are connected in series on the power lines of the actuators, and the rapid switching frequency of the MOSFETs adjusts the voltage to control the speed of the actuators; the control relay controls the forward and reverse rotation of the actuators by changing their on / off state to change the positive and negative terminals of the actuators; the control chip is used to process input and output signals and control the operation of the entire device.

4. The simple and easy-to-use RV electric extension controller according to claim 1, characterized in that, The CAN communication module is responsible for handling the communication between the host computer and the electric expansion controller, allowing the host computer to control the electric expansion controller and display its real-time working status via the communication line; the wireless transceiver module is responsible for handling the communication between the wireless remote control and the electric expansion controller, allowing the wireless remote control to control the electric expansion controller via 2.4G wireless signals.

5. A simple and easy-to-use RV electric extension controller according to claim 1, characterized in that, The two self-resetting rocker switches, in manual mode, will control the extension mechanism to extend or retract when pressed intermittently, and will stop the extension mechanism when released. Double-clicking to extend or retract will enter automatic mode, and the extension mechanism will start to extend or retract automatically. The self-resetting metal circular button will reset the extension mechanism when a fault occurs by pressing and holding the button for 10 seconds. The fault indicator light is used to indicate what fault has occurred in the electric extension controller.

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