Hand controller with reset function for chair sofa for old people

Abstract

The utility model relates to the technical field of chairs and sofas for old people, and discloses a hand controller with a reset function for chairs and sofas for old people, which comprises an automatic reset control module; a driving module; a backlight module; a mobile phone charging module; a power supply inspection module; the integrated control module is used for sending control instructions to the automatic reset control module, the driving module, the backlight module and the mobile phone charging module; through the design of an automatic reset control module, after the old operate a hand controller to adjust the sofa to any state or angle, a reset key is pressed down, and an IC chip controls a driving part (such as a motor) to work, so that the sofa quickly and accurately returns to an initial preset position, the old can conveniently use the sofa next time, and manual adjustment for multiple times is not needed; and through the design of the transient voltage suppression diode, rapid conduction can be realized when the voltage abnormally rises, the over-high voltage is clamped to a safety range, internal elements of the hand controller are prevented from being damaged by the over-high voltage, and the service life of the hand controller is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of elderly chairs and sofas, specifically to a manual controller for an elderly chair and sofa with a reset function. Background Technology

[0002] The elderly chair / sofa is furniture designed specifically for seniors. Based on the physical characteristics of seniors (such as stiff joints, limited mobility, and fatigue from prolonged sitting) and their living needs, it is optimized in terms of comfort, safety, and convenience, aiming to improve the quality of life and home safety of seniors.

[0003] The elderly chair sofa is ergonomically designed and has an adjustable backrest angle (e.g., 110°-160°). Through optimization in ergonomic design, safety protection, and convenient functions, the elderly chair sofa provides a safer and more comfortable sitting and lying experience for the elderly.

[0004] A search revealed that patent application number CN202022111383.3 discloses a home-use sofa chair for the elderly, including a sofa seat, a backrest on the left side of the sofa seat, the bottom end of the backrest hinged to the left side of the sofa seat, a headrest on the side wall of the backrest, and a sliding block fixedly connected to the left side of the headrest. This utility model provides a home-use sofa chair for the elderly with a novel structure and reasonable layout. When in use, the elderly sit on the sofa seat, and the drive motor drives the gear to rotate through the control. The rotation of the gear drives the toothed plate and the sliding block to move up and down. The sliding block moves up and down within the limiting groove, thereby adjusting the height of the headrest, thus solving the problem of the inconvenience of adjusting the headrest height in sofa chairs. The universal wheel assembly at the bottom of the sofa seat allows the sofa chair to move, switching between walking and standing, improving convenience. The buffer device above the universal wheel assembly can provide shock absorption and cushioning during movement, improving the installation and stability of the sofa chair.

[0005] The characteristic of elderly chairs and sofas is that they operate slowly. When it is necessary to press and hold the control switch to return the sofa to a sitting position, the person must keep operating the control switch, which is quite time-consuming. This creates a need for automatic reset.

[0006] The current approach is to install a control system on the sofa, which is costly and complicated to assemble in the sofa factory. Therefore, we need to propose a hand controller for elderly chairs and sofas with a reset function. Utility Model Content

[0007] The purpose of this invention is to provide a hand controller for an elderly chair / sofa with a reset function. Through the design of the automatic reset control module, after the elderly person operates the hand controller to adjust the sofa to any state or angle, pressing the reset button activates the IC chip to control the drive components (such as a motor), causing the sofa to quickly and accurately return to its initial preset position. This facilitates future use for the elderly person without requiring multiple manual adjustments. Furthermore, the design of the transient voltage suppression diode ensures rapid conduction when the voltage abnormally rises, clamping the excessive voltage to a safe range and preventing damage to the internal components of the hand controller, thus increasing its lifespan and solving the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a manual controller for an elderly chair / sofa with a reset function, comprising:

[0009] The automatic reset control module is responsible for enabling the automatic reset function of the elderly chair / sofa.

[0010] A drive module that provides power for the sofa to automatically reset and adjust.

[0011] A backlight module that provides backlight illumination for hand controllers, making them easier for users to operate in dim environments;

[0012] A mobile phone charging module that allows users to charge their phones while resting on a sofa chair;

[0013] A power supply check module used to detect whether the power supply is working properly;

[0014] An integrated control module that sends control commands to the automatic reset control module, drive module, backlight module, and mobile phone charging module;

[0015] The automatic reset control module, drive module, backlight module, mobile phone charging module, and power check module are all electrically connected to the integrated control module. The automatic reset control module is electrically connected to the drive module, and the power check module is electrically connected to the automatic reset control module.

[0016] Preferably, the integrated control module includes an electrically connected chip IC2 and a connector J1, and the automatic reset control module includes a relay RY1 and a relay RY2 connected in parallel. A diode D3 is connected to the relay RY1, a diode D4 is connected to the relay RY2, and a diode TVS2 is connected between the relay RY1 and the relay RY2.

[0017] Preferably, the driving module includes a transistor N1 connected to relay RY2 and a transistor N2 connected to relay RY1. A resistor R5 is connected between the base and emitter of transistor N1, and a resistor R3 is connected to the base of transistor N1. One end of the resistor R3 is connected to pin 2 of chip IC2.

[0018] A resistor R6 is connected between the base and emitter of the transistor N2, and a ground group R4 is connected to the base of the transistor N2. One end of the resistor R4 is connected to pin 3 of the chip IC2.

[0019] Preferably, the backlight module includes a transistor N3, a resistor R17 is connected between the base and emitter of the transistor N3, a resistor R16 is connected to the base of the transistor N3, and one end of the resistor R16 is connected to pin 16 of the chip IC2.

[0020] Preferably, the collector of the transistor N3 is connected in parallel with the following resistors: LED1 connected in series with resistor R13, LED2 connected in series with resistor R14, LED3 connected in series with resistor R15, LED4 connected in series with resistor R18, LED5 connected in series with resistor R19, and LED6 connected in series with resistor R23; the backlight module also includes a resistor R24 ​​connected in series with LED7, one end of which is connected to pin 14 of the chip IC2.

[0021] Preferably, the mobile phone charging module includes a voltage regulator chip IC1. Pin 1 of the voltage regulator chip IC1 is connected to capacitors C3 and C5 connected in parallel. Pin 3 of the voltage regulator chip IC1 is connected to capacitors C4 and C6 connected in parallel and diode TVS1. A resistor R1 is connected between capacitor C6 and diode TVS1. Pin 3 of the voltage regulator chip IC1 is also connected to a fuse F1, diode D2, diode D1, and capacitor C1 connected in series.

[0022] Preferably, the power check module includes a connector P1 and a resistor R10 for receiving power check signals. One end of the resistor R10 is connected to a diode D5, a series resistor R11 and a diode D7, and a parallel capacitor C9 and a resistor R12. The diode D7 is connected to pin 1 of the connector P1.

[0023] The power supply check module also includes resistors R8 and R9 connected in parallel. Resistor R8 is connected to diode D5, and resistor R9 is connected to pin 20 of chip IC2. One end of resistor R9 is connected in series with diode D6 and capacitor C8. The terminals of diode D6 and capacitor C8 are connected to pin 5 of connector P1.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model, through the design of an automatic reset control module, allows the elderly to adjust the sofa to any state or angle using the hand controller, and then press the reset button. The IC chip controls the drive components (such as a motor) to work, so that the sofa quickly and accurately returns to the initial preset position, making it convenient for the elderly to use next time without having to manually adjust it multiple times.

[0026] 2. This utility model, through the design of a transient voltage suppression diode, can quickly conduct when the voltage rises abnormally, clamping the excessively high voltage to a safe range, preventing the excessively high voltage from damaging the internal components of the hand controller, and increasing the service life of the hand controller. Attached Figure Description

[0027] Figure 1 This is a circuit diagram of the integrated control module of this utility model;

[0028] Figure 2 This is a circuit diagram of the automatic reset control module of this utility model;

[0029] Figure 3 The circuit diagram of the mobile phone charging module of this utility model is shown below.

[0030] Figure 4 This is a circuit diagram of the driving module of this utility model;

[0031] Figure 5 This is the circuit diagram of the power supply testing module of this utility model;

[0032] Figure 6 This is the circuit diagram of the backlight module of this utility model. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-6 This utility model provides a manual controller for an elderly chair / sofa with a reset function, comprising:

[0035] The automatic reset control module is responsible for enabling the automatic reset function of the elderly chair / sofa.

[0036] The automatic reset control module includes relays RY1 and RY2 connected in parallel. A diode D3 is connected to relay RY1, a diode D4 is connected to relay RY2, and a diode TVS2 is connected between relays RY1 and RY2.

[0037] Specifically, relay RY1 contains a switch K1, relay RY2 contains a switch K2, and switches K1 and K2 are connected, and diode TVS2 is connected between switches K1 and K2.

[0038] A drive module that provides power for the sofa to automatically reset and adjust.

[0039] The driving module includes a transistor N1 connected to a relay RY2 and a transistor N2 connected to a relay RY2. A resistor R5 is connected between the base and emitter of the transistor N1, and a resistor R3 is connected to the base of the transistor N1. One end of the resistor R3 is connected to pin 2 of the chip IC2.

[0040] A resistor R6 is connected between the base and emitter of the transistor N2, and a ground group R4 is connected to the base of the transistor N2. One end of the resistor R4 is connected to pin 3 of the chip IC2.

[0041] A backlight module that provides backlight illumination for hand controllers, making them easier for users to operate in dim environments;

[0042] The backlight module includes a transistor N3, with a resistor R17 connected between the base and emitter of the transistor N3, and a resistor R16 connected to the base of the transistor N3. One end of the resistor R16 is connected to pin 16 of the chip IC2.

[0043] The collector of transistor N3 is connected in parallel with the following resistors: LED1 and resistor R13, LED2 and resistor R14, LED3 and resistor R15, LED4 and resistor R18, LED5 and resistor R19, and LED6 and resistor R23. The backlight module also includes a resistor R24 ​​and LED7 connected in series, with one end of resistor R24 ​​connected to pin 14 of chip IC2.

[0044] A mobile phone charging module that allows users to charge their phones while relaxing on a sofa; the mobile phone charging module is used to convert a 29V input voltage to a 5V output voltage.

[0045] The mobile phone charging module includes a voltage regulator chip IC1. Pin 1 of the voltage regulator chip IC1 is connected to capacitors C3 and C5 connected in parallel. Pin 3 of the voltage regulator chip IC1 is connected to capacitors C4 and C6 connected in parallel and diode TVS1. A resistor R1 is connected between capacitor C6 and diode TVS1. Pin 3 of the voltage regulator chip IC1 is also connected to a fuse F1, diode D2, diode D1, and capacitor C1 connected in series.

[0046] A power supply check module used to detect whether the power supply is working properly;

[0047] The power check module includes a connector P1 and a resistor R10 for receiving power check signals. The resistor R10 is connected to pin 17 of the chip IC2. One end of the resistor R10 is connected to a diode D5, a series resistor R11 and a diode D7, and a parallel capacitor C9 and a resistor R12. The diode D7 is connected to pin 1 of the connector P1.

[0048] The two ends of diode TVS2 are connected to pins 3 and 4 of connector P1, respectively.

[0049] The power supply check module also includes resistors R8 and R9 connected in parallel. Resistor R8 is connected to diode D5, and resistor R9 is connected to pin 20 of chip IC2. One end of resistor R9 is connected in series with diode D6 and capacitor C8. The terminals of diode D6 and capacitor C8 are connected to pin 5 of connector P1.

[0050] The power supply check module also includes a resistor R7 and a capacitor C7 connected in series. The resistor R7 is connected to switch K1 and switch K2 respectively, and the terminals of the resistor R7 and capacitor C7 are connected to pin 19 of chip IC2.

[0051] An integrated control module that sends control commands to an automatic reset control module, a drive module, a backlight module, and a mobile phone charging module; the integrated control module includes a chip IC2 and a connector J1 that are electrically connected.

[0052] It also includes a switch control module electrically connected to the integrated control module. The switch control module includes resistors R20, R21, and R22 connected in parallel. One end of resistor R20 is connected to switch S1, one end of resistor R21 is connected to switch S2, and one end of resistor R22 is connected to switch S3.

[0053] Specifically, switch S1 is connected to pin 15 of chip IC2, switch S2 is connected to pin 4 of chip IC2, and switch S3 is connected to pin 1 of chip IC2.

[0054] The automatic reset control module, drive module, backlight module, mobile phone charging module, and power check module are all electrically connected to the integrated control module. The automatic reset control module is electrically connected to the drive module, and the power check module is electrically connected to the automatic reset control module.

[0055] The 29V input voltage is processed by a circuit consisting of relays RY1 and RY2, diodes (D1-D4), diodes (TVS1, TVS2), and capacitors. Diodes (TVS1, TVS2) are used for overvoltage protection, diodes (D1-D4) are used for rectification and to prevent reverse current, and capacitors are used for filtering. The input voltage is then converted into a stable 5V voltage by the voltage regulator chip IC1 to power the subsequent circuits.

[0056] When buttons (KEY1-KEY4) are pressed, the corresponding circuits are activated, generating voltage change signals. For example, when button KEY4 is pressed, the signal is transmitted to the subsequent processing circuit through a circuit consisting of resistor R8, resistor R9, diode D6, and capacitor C8. For current detection, current changes are detected by resistors such as M1Shunt and M1Stram, and the voltage difference across the resistors reflects the current magnitude. The signal is then processed by components such as capacitor (C7) before being sent to the microcontroller for detection.

[0057] Based on the detected signals (such as button signals, current signals, etc.), chip IC1 processes them through its internal program logic and then outputs control signals (such as PWM signals). These signals are output to external circuits through pins, for example, through a drive circuit composed of transistors (N1, N2, N3), to control actuators such as relays, thereby realizing the motion control of the elderly chair / sofacial sofa.

[0058] When in use: Press the button (KEY1-KEY4), the corresponding circuit is turned on and a voltage change is generated. The voltage is then transmitted to the corresponding ADC pin or input pin of chip IC2 for processing through the signal conditioning circuit composed of resistors, diodes and other components.

[0059] The load current flows through the sensing resistors (M1Shunt, M1Stram) to generate a voltage difference. After passing through the filter components such as capacitor C7, the voltage difference is transmitted to the ADC pin of chip IC2. Chip IC2 converts the analog voltage signal into a digital signal for analysis and processing.

[0060] The IC2 chip processes the button signals and current signal lights according to its internal program, and outputs control signals (such as PWM signals) from the corresponding pins. The signals are amplified by the driving circuits such as transistors (N1, N2, N3) and then drive the actuators such as relays (RY1, RY2) to control the elderly chair sofa.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manual controller for an elderly chair / sofa with a reset function, characterized in that, include: The automatic reset control module is responsible for enabling the automatic reset function of the elderly chair / sofa. A drive module that provides power for the sofa to automatically reset and adjust. A backlight module that provides backlight illumination for hand controllers, making them easier for users to operate in dim environments; A mobile phone charging module that allows users to charge their phones while resting on a sofa chair; A power supply check module used to detect whether the power supply is working properly; An integrated control module that sends control commands to the automatic reset control module, drive module, backlight module, and mobile phone charging module; The automatic reset control module, drive module, backlight module, mobile phone charging module, and power check module are all electrically connected to the integrated control module. The automatic reset control module is electrically connected to the drive module, and the power check module is electrically connected to the automatic reset control module.

2. The hand controller for an elderly chair / sofa with a reset function according to claim 1, characterized in that: The integrated control module includes an electrically connected chip IC2 and a connector J1. The automatic reset control module includes relays RY1 and RY2 connected in parallel. A diode D3 is connected to relay RY1, a diode D4 is connected to relay RY2, and a diode TVS2 is connected between relays RY1 and RY2.

3. The hand controller for an elderly chair / sofa with a reset function according to claim 1, characterized in that: The driving module includes a transistor N1 connected to a relay RY2 and a transistor N2 connected to a relay RY2. A resistor R5 is connected between the base and emitter of the transistor N1, and a resistor R3 is connected to the base of the transistor N1. One end of the resistor R3 is connected to pin 2 of the chip IC2. A resistor R6 is connected between the base and emitter of the transistor N2, and a ground group R4 is connected to the base of the transistor N2. One end of the resistor R4 is connected to pin 3 of the chip IC2.

4. A manual controller for an elderly chair / sofa with a reset function according to claim 1, characterized in that: The backlight module includes a transistor N3, with a resistor R17 connected between the base and emitter of the transistor N3, and a resistor R16 connected to the base of the transistor N3. One end of the resistor R16 is connected to pin 16 of the chip IC2.

5. A manual controller for an elderly chair / sofa with a reset function according to claim 4, characterized in that: The collector of transistor N3 is connected in parallel with the following resistors: LED1 and resistor R13, LED2 and resistor R14, LED3 and resistor R15, LED4 and resistor R18, LED5 and resistor R19, and LED6 and resistor R23. The backlight module also includes a resistor R24 ​​and LED7 connected in series, with one end of resistor R24 ​​connected to pin 14 of chip IC2.

6. A manual controller for an elderly chair / sofa with a reset function according to claim 1, characterized in that: The mobile phone charging module includes a voltage regulator chip IC1. Pin 1 of the voltage regulator chip IC1 is connected to capacitors C3 and C5 connected in parallel. Pin 3 of the voltage regulator chip IC1 is connected to capacitors C4 and C6 connected in parallel and diode TVS1. A resistor R1 is connected between capacitor C6 and diode TVS1. Pin 3 of the voltage regulator chip IC1 is also connected to a fuse F1, diode D2, diode D1, and capacitor C1 connected in series.

7. A manual controller for an elderly chair / sofa with a reset function according to claim 1, characterized in that: The power check module includes a connector P1 and a resistor R10 for receiving power check signals. One end of the resistor R10 is connected to a diode D5, a series resistor R11 and a diode D7, and a parallel capacitor C9 and a resistor R12. The diode D7 is connected to pin 1 of the connector P1. The power supply check module also includes resistors R8 and R9 connected in parallel. Resistor R8 is connected to diode D5, and resistor R9 is connected to pin 20 of chip IC2. One end of resistor R9 is connected in series with diode D6 and capacitor C8. The terminals of diode D6 and capacitor C8 are connected to pin 5 of connector P1.

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