CN219802625U - Control circuit for indicator lamp of scooter or wheelchair - Google Patents

Abstract

The utility model relates to a control circuit of a scooter or wheelchair indicator lamp used in scooter or wheelchair schemes. The utility model provides a scooter or wheelchair pilot lamp control circuit, including left steering button, right steering button, two flashing buttons, wheelchair pilot lamp and wheelchair lamp control circuit board, be equipped with the MCU singlechip on the wheelchair lamp control circuit board, and through MCU singlechip control's lamp accuse drive circuit, left steering button, right steering button and two flashing buttons are connected with MCU singlechip signal control input electricity respectively, lamp accuse drive circuit is connected with MCU singlechip signal control output electricity, output drive control wheelchair pilot lamp, the wheelchair pilot lamp includes respectively with left steering button, right steering button and the corresponding left steering pilot lamp of two flashing buttons, right steering pilot lamp and two flashing pilot lamps. The left/right steering/double-jump light indication can be provided for the scooter wheel chair, the light control circuit is simple, and the use and operation are simple, convenient and stable.

Description

Control circuit for indicator lamp of scooter or wheelchair

Technical Field

The utility model relates to a control circuit of a scooter or wheelchair indicator lamp used in scooter or wheelchair schemes.

Background

The existing wheel chair control system for riding instead of walk in the market is not provided with a light control function, and the problem that the current or the traffic flow in the surrounding environment cannot timely provide the running direction change trend of the wheel chair for riding instead of walk in the market is caused, so that the current or the traffic flow in the surrounding environment cannot judge the state change conditions of left turn, right turn or stop and the like of the riding instead of walk, potential safety hazard accidents are easily caused, and the potential safety hazard is increased when the riding instead of walk at night. Although the later-stage plug-in type wheelchair is additionally arranged on the scooter wheelchair to improve the riding safety and direction effect of the scooter, on one hand, the plug-in type wheelchair is required to be considered, and on the other hand, most of plug-in type wheelchair and the original scooter are not in electric connection relation or are required to be damaged to be changed into the original scooter electric connection circuit, so that the problems of inconvenience in use or potential safety hazard caused by refitting electricity are solved to a certain extent.

The patent number ZL202222814499.2 with the bulletin day of 2023, 1 and 24 discloses a plug-in wheelchair lamp, which belongs to the technical field of wheelchair lamps and comprises a wheelchair lamp main body, wherein a lamp cap and a switch button for controlling the opening and closing of the lamp cap are arranged at the top end of the wheelchair lamp main body, a plug column for being plugged with a charging interface of a wheelchair controller is connected at the bottom end of the wheelchair lamp main body, a plugging mechanism is arranged on the plug column, the plugging mechanism comprises a fixed ring plate fixedly sleeved at the middle position of the plug column and a movable ring plate movably sleeved at the middle position of the plug column, the movable ring plate is positioned at one side of a buckle piece far away from the wheelchair lamp main body, and a sealing rubber ring is arranged on one side of the movable ring plate far away from the fixed ring plate; the fixed ring plate is fixed with the fixed pipe towards the one side of wheelchair lamp main part, and the fixed pipe encircles and is provided with many. The pluggable wheelchair lamp can protect the plugging position of the wheelchair lamp and the charging interface, so that the problem that sundries such as water infiltrate into the interface is avoided as much as possible, and the safety of the wheelchair lamp is improved. However, the scheme has the defects that the charging interface of the wheelchair controller needs to be used for taking electricity, and after the charging interface of the wheelchair controller is plugged and unplugged for a plurality of times for a long time, the stability, reliability and effectiveness of electric connection contact of the charging interface of the wheelchair controller are easily reduced, and the potential safety hazard of charging and the poor charging contact, poor electricity taking contact and the like are easily brought.

Disclosure of Invention

The utility model provides the control circuit of the indicator lamp of the scooter or wheelchair, which can provide left/right steering/double-jump light indication for the scooter, has a simple lamp control circuit and is simple, convenient and stable to use and operate.

The utility model adopts the concrete technical scheme for solving the technical problems that: a control circuit of a scooter or wheelchair indicator light is characterized in that: the wheelchair comprises a left steering key, a right steering key, a double-flashing key, a wheelchair indicator and a wheelchair lamp control circuit board, wherein an MCU single-chip microcomputer and a lamp control driving circuit controlled by the MCU single-chip microcomputer are arranged on the wheelchair lamp control circuit board, the left steering key, the right steering key and the double-flashing key are respectively electrically connected with a signal control input end of the MCU single-chip microcomputer, the lamp control driving circuit is electrically connected with a signal control output end of the MCU single-chip microcomputer, and the wheelchair indicator comprises a left steering indicator, a right steering indicator and a double-flashing indicator which are respectively corresponding to the left steering key, the right steering key and the double-flashing key. The left/right steering/double-jump light indication can be provided for the scooter wheel chair, the light control circuit is simple, and the use and operation are simple, convenient and stable.

Preferably, the MCU singlechip adopts a chip model of STC15W408AS. The light indication control is simple, convenient, reliable and stable.

Preferably, the MCU singlechip is electrically connected with the base electrode of the 3 rd triode after the 23 rd resistor is connected in series with the 5 th functional pin, the collector electrode of the 3 rd triode is connected with a left turn indicator circuit in series, two ends of the left turn indicator circuit are connected with the 1 st interface terminal in parallel, the left turn indicator circuit is connected with the 28 th resistor in series by adopting a first light-emitting diode, the cathode of the first light-emitting diode is connected with the collector electrode of the 3 rd triode in series, and the other end of the 28 th resistor is electrically connected with a +24V power supply; the MCU singlechip is electrically connected with the base electrode of the 4 th triode after the 24 th resistor is connected in series with the 4 th functional pin, the collector electrode of the 4 th triode is connected with the right turn indicator circuit in series, the two ends of the right turn indicator circuit are connected with the 2 nd interface terminal in parallel, the right turn indicator circuit is connected with the 29 th resistor in series by adopting a second light-emitting diode, the cathode of the second light-emitting diode is connected with the collector electrode of the 4 th triode in series, and the other end of the 29 th resistor is electrically connected with the +24V power supply; the MCU singlechip is electrically connected with the base electrode of the 5 th triode after the 31 rd resistor is connected in series with the 3 rd functional pin, the collector electrode of the 5 th triode is connected with the double-flash indicator circuit in series, two ends of the double-flash indicator circuit are connected with the 3 rd interface terminal in parallel, the double-flash indicator circuit is connected with the 30 th resistor in series by adopting a third light emitting diode, the cathode of the third light emitting diode is connected with the collector electrode of the 3 rd triode in series, and the other end of the 30 th resistor is electrically connected with the +24V power supply. The light indication driving control is simple, convenient and stable.

Preferably, the 1 st interface terminal, the 2 nd interface terminal and the 3 rd interface terminal adopt a dual-pin functional terminal structure. The interface connection with the external lamp body is improved, and the method is simple, convenient and effective.

Preferably, the wheelchair lamp control circuit board is provided with an LDO voltage-stabilizing power supply circuit, a voltage-stabilizing chip of the LDO voltage-stabilizing power supply circuit adopts a three-section voltage stabilizer with the chip model of 78M05, the input end of the three-section voltage stabilizer is connected with a +24V power supply in series with a resistor and then is electrically connected with the power supply after being connected with a capacitor in series, and the output end of the three-section voltage stabilizer is connected with the power supply in series with the capacitor and then is electrically connected with the power supply. The voltage stability, reliability and effectiveness of the circuit are improved.

Preferably, one end of the left steering key is electrically connected with a power supply, and the other end of the left steering key is electrically connected with a signal control input end of a 22 nd functional pin of the MCU singlechip after being connected with a 43 rd resistor in series; one end of the right steering key is electrically connected with a power supply, and the other end of the right steering key is electrically connected with a 21 st functional pin signal control input end of the MCU singlechip after being connected with a 42 th resistor in series; one end of the double-flash key is electrically connected with a power supply, and the other end of the double-flash key is electrically connected with a signal control input end of a 20 th functional pin of the MCU singlechip after being connected with a 44 th resistor in series. The signal input simplicity and effectiveness of the left steering key, the right steering key and the double-flash key are improved.

Preferably, the flashing frequency of the driving lamps of the left steering indicating lamp, the right steering indicating lamp and the double flashing indicating lamp is 70-80 times/min. The effectiveness of the visual perception of the lamp light flickering warning is improved.

Preferably, the detection time interval of the MCU singlechip for the key input signals of the left steering key, the right steering key and the double-flash key is 10-15 ms. The reliability and the effectiveness of monitoring caused by light control are improved.

Preferably, the left steering key, the right steering key, the double-flashing key and the wheelchair indicator light adopt a key and indicator light combined structure mode or a man-machine interface structure mode. The light control operation is flexible, simple and effective.

Preferably, the MCU singlechip is electrically connected with the base electrode of the 6 th triode after the 38 th resistor is connected in series with the 2 nd functional pin, the collector electrode of the 6 th triode is connected with the brake lamp in series, and the base electrode of the 6 th triode is electrically connected with the power supply after the 41 st resistor is connected in series. And the effectiveness of brake indication is improved.

The beneficial effects of the utility model are as follows: can provide left/right steering/double-jump light indication for the scooter wheel chair, has simple lamp control circuit, and is simple, convenient and stable in use and operation

Drawings

FIG. 1 is a schematic diagram of the circuit configuration of the control circuit of the indicator light of the scooter or wheelchair of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

In the embodiment shown in fig. 1, a scooter or wheelchair indicator control circuit comprises a left steering button, a right steering button, a double-flashing button, a wheelchair indicator and a wheelchair lamp control circuit board, wherein the wheelchair lamp control circuit board is provided with an MCU U1 and a lamp control driving circuit controlled by the MCU, the left steering button, the right steering button and the double-flashing button are respectively electrically connected with a signal control input end of the MCU, the lamp control driving circuit is electrically connected with a signal control output end of the MCU, and the wheelchair indicator comprises a left steering indicator, a right steering indicator and a double-flashing indicator which are respectively corresponding to the left steering button, the right steering button and the double-flashing button. The chip model adopted by the MCU singlechip U1 is STC15W408AS. MCU singlechip U1 is connected with 3 triode base Q3 after the 23 rd resistance R23 is established ties to the 5 th functional pin, 3 triode Q3 collecting electrode establishes ties left turn indicator circuit, left turn indicator circuit both ends are parallelly connected with 1 st interface terminal L1, 1 st interface terminal L1 is used for realizing connecting left turn indicator interface to left turn external lamp body, left turn indicator circuit adopts first emitting diode LED1 and 28 th resistance R28 to establish ties, the negative pole of first emitting diode LED1 is established ties with 3 triode Q3 collecting electrode, 28 th resistance R28 other end is connected with +24V power electricity, 3 triode Q3 base establishes ties 25 th resistance R25 back and is connected with power electricity; the MCU singlechip U1 is electrically connected with a base electrode of a 4 th triode Q4 after a 24 th resistor R24 is connected in series with a 4 th functional pin, a collector electrode of the 4 th triode Q4 is connected with a right turn indicator circuit in series, two ends of the right turn indicator circuit are connected with a 2 nd interface terminal L2 in parallel, the 2 nd interface terminal L2 is used for connecting a right turn indicator interface to a right turn external lamp body, the right turn indicator circuit is connected with a 29 th resistor Q29 in series by adopting a second light emitting diode LED2, a cathode of the second light emitting diode LED2 is connected with the collector electrode of the 4 th triode Q4 in series, the other end of the 29 th resistor R29 is electrically connected with a +24V power supply, and the base electrode of the 4 th triode Q4 is electrically connected with the power supply after being connected with a 26 th resistor R26 in series; the MCU singlechip U1 is electrically connected with a base electrode of a 5 th triode Q5 after a 31 rd resistor R31 is connected in series with a 3 rd functional pin, a collector electrode of the 5 th triode Q5 is connected with a double-flash indicator circuit in series, two ends of the double-flash indicator circuit are connected with a 3 rd interface terminal L3 in parallel, the 3 rd interface terminal L3 is used for connecting the double-flash indicator to an external headlamp body, the double-flash indicator circuit is connected with a third light-emitting diode LED3 and a 30 rd resistor in series, a cathode of the third light-emitting diode is connected with the collector electrode of the 3 rd triode Q5 in series, the other end of the 30 th resistor R30 is electrically connected with a +24V power supply, and the base electrode of the 5 th triode Q5 is electrically connected with the power supply after being connected with a 32 rd resistor R32 in series; MCU singlechip U1 is connected with 6 triode Q6 base electricity after the 38 th resistance R38 is established ties to the 2 nd functional pin, and 6 triode Q6 collecting electrode series connection brake light S-LED, and 41 st resistance R41 is established ties to 6 triode Q6 base back and is connected with power ground electricity, drive control brake light instruction. The 1 st interface terminal L1, the 2 nd interface terminal L2 and the 3 rd interface terminal L3 all adopt a dual-pin functional terminal structure. The wheelchair lamp control circuit board is provided with an LDO voltage-stabilizing power supply circuit, a voltage-stabilizing chip of the LDO voltage-stabilizing power supply circuit adopts a three-section voltage stabilizer IC2 with the chip model of 78M05, the input end of the three-section voltage stabilizer is connected with a +24V power supply electrically after being connected with resistors in series (a resistor string formed by connecting a 3 rd resistor R3 and a 4 th resistor R4 in parallel is connected with the +24V power supply), meanwhile, the input end of the three-section voltage stabilizer is connected with a power supply electrically after being connected with capacitors in series (a capacitor string formed by connecting a 3 rd capacitor C3 and a 2 nd capacitor C2 in parallel is connected with a power supply ground), and the output end of the three-section voltage stabilizer is connected with the power supply electrically after being connected with capacitors in series (a capacitor string formed by connecting a 5 th capacitor C5 and a 4 th capacitor C4 in parallel is connected with the power supply ground). One end of the left steering key K2 is electrically connected with a power supply, and the other end of the left steering key K2 is electrically connected with a signal control input end of a 22 nd functional pin of the MCU singlechip after being connected with a 43 rd resistor in series; one end of the right steering key K3 is electrically connected with a power supply, and the other end of the right steering key K3 is electrically connected with a 21 st functional pin signal control input end of the MCU singlechip after being connected with a 42 th resistor in series; one end of the double-flash key K4 is electrically connected with a power supply, and the other end of the double-flash key K is electrically connected with a signal control input end of a 20 th functional pin of the MCU singlechip after being connected with a 44 th resistor in series; one end of the headlight key K5 is electrically connected with a power supply, and the other end is electrically connected with a 19 th functional pin signal control input end of the MCU singlechip after being connected with a 45 th resistor in series. The flashing frequency of the driving lamps of the left steering indicating lamp, the right steering indicating lamp and the double flashing indicating lamp is 70-80 times/min. The detection time interval of the MCU singlechip for the key input signals of the left steering key, the right steering key and the double-flash key is 10-15 ms. The left steering key, the right steering key, the double-flash key and the wheelchair indicator light adopt a key and indicator light combined structure mode or a human-computer interface structure mode.

When the wheelchair is used, the scooter or wheelchair indicator light control circuit is fixedly arranged on the scooter, the scooter or wheelchair indicator light control circuit is stably and electrically connected with a scooter power supply, and after the wheelchair light control circuit board is electrified and started, the MCU, the LDO, the lamp control drive and the key input system are all in a standby state. The MCU detects key input signals at every moment (10 MS intervals). When a left steering key, a right steering key or a key of a double-flash key is pressed or a left/right steering/double-jump operation is executed through a human-computer interface, the MCU singlechip starts to detect signals through an I/O port, uses interrupt hardware, enters key anti-shake time-delay program processing, finally enters an input signal judging and executing stage, enters a lamp control circuit driving stage, and finally completes lamp control function realization required by a human-computer. The left/right steering/double-jump man-machine keys are connected with the intelligent control logic state, and when any one key is pressed, corresponding lamp control driving is executed, and the flicker frequency of driving lamps is 70-80 times/minute. The state of the lamp flashing, when the corresponding key is pressed, the lamp flashing is stopped, and when other keys are pressed, the state of other lamps flashing can be entered. The 3 keys are in corresponding intelligent logic relation. The design is convenient for the user, and the operation is easy to understand, thereby bringing convenience to the user.

The foregoing and construction describes the basic principles, principal features and advantages of the present utility model product, as will be appreciated by those skilled in the art. The foregoing examples and description are provided to illustrate the principles of the utility model and to provide various changes and modifications without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A control circuit of a scooter or wheelchair indicator light is characterized in that: the wheelchair comprises a left steering key, a right steering key, a double-flashing key, a wheelchair indicator and a wheelchair lamp control circuit board, wherein an MCU single-chip microcomputer and a lamp control driving circuit controlled by the MCU single-chip microcomputer are arranged on the wheelchair lamp control circuit board, the left steering key, the right steering key and the double-flashing key are respectively electrically connected with a signal control input end of the MCU single-chip microcomputer, the lamp control driving circuit is electrically connected with a signal control output end of the MCU single-chip microcomputer, and the wheelchair indicator comprises a left steering indicator, a right steering indicator and a double-flashing indicator which are respectively corresponding to the left steering key, the right steering key and the double-flashing key.

2. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the MCU singlechip adopts a chip model of STC15W408AS.

3. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the MCU singlechip is electrically connected with the base electrode of the 3 rd triode after the 23 rd resistor is connected in series with the 5 th functional pin, the collector electrode of the 3 rd triode is connected with a left turn indicator circuit in series, two ends of the left turn indicator circuit are connected with the 1 st interface terminal in parallel, the left turn indicator circuit is connected with the 28 th resistor in series by adopting a first light-emitting diode, the cathode of the first light-emitting diode is connected with the collector electrode of the 3 rd triode in series, and the other end of the 28 th resistor is electrically connected with a +24V power supply; the MCU singlechip is electrically connected with the base electrode of the 4 th triode after the 24 th resistor is connected in series with the 4 th functional pin, the collector electrode of the 4 th triode is connected with the right turn indicator circuit in series, the two ends of the right turn indicator circuit are connected with the 2 nd interface terminal in parallel, the right turn indicator circuit is connected with the 29 th resistor in series by adopting a second light-emitting diode, the cathode of the second light-emitting diode is connected with the collector electrode of the 4 th triode in series, and the other end of the 29 th resistor is electrically connected with the +24V power supply; the MCU singlechip is electrically connected with the base electrode of the 5 th triode after the 31 rd resistor is connected in series with the 3 rd functional pin, the collector electrode of the 5 th triode is connected with a double-flash indicator circuit in series, two ends of the double-flash indicator circuit are connected with the 3 rd interface terminal L3 in parallel, the double-flash indicator circuit is connected with the 30 th resistor in series by adopting a third light emitting diode, the cathode of the third light emitting diode is connected with the collector electrode of the 3 rd triode in series, and the other end of the 30 th resistor is electrically connected with a +24V power supply.

4. A scooter or wheelchair indicator light control circuit according to claim 3, characterised in that: the 1 st interface terminal, the 2 nd interface terminal and the 3 rd interface terminal adopt a double-pin functional terminal structure.

5. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the wheelchair lamp control circuit board is provided with an LDO voltage-stabilizing power supply circuit, a voltage-stabilizing chip of the LDO voltage-stabilizing power supply circuit adopts a three-section voltage stabilizer with the chip model of 78M05, the input end of the three-section voltage stabilizer is connected with a +24V power supply in series with a resistor and then is electrically connected with the power supply after being connected with a capacitor in series, and the output end of the three-section voltage stabilizer is connected with the power supply in series with the capacitor and then is electrically connected with the power supply.

6. The scooter or wheelchair indicator light control circuit of claim 1, wherein: one end of the left steering key is electrically connected with a power supply, and the other end of the left steering key is electrically connected with a signal control input end of a 22 nd functional pin of the MCU singlechip after being connected with a 43 rd resistor in series; one end of the right steering key is electrically connected with a power supply, and the other end of the right steering key is electrically connected with a 21 st functional pin signal control input end of the MCU singlechip after being connected with a 42 th resistor in series; one end of the double-flash key is electrically connected with a power supply, and the other end of the double-flash key is electrically connected with a signal control input end of a 20 th functional pin of the MCU singlechip after being connected with a 44 th resistor in series.

7. A scooter or wheelchair indicator light control circuit according to claim 1 or 3, characterised in that: the flashing frequency of the driving lamps of the left steering indicating lamp, the right steering indicating lamp and the double flashing indicating lamp is 70-80 times/min.

8. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the MCU singlechip is used for detecting key input signals of the left steering key, the right steering key and the double-flash key at intervals of 10-15 ms.

9. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the left steering key, the right steering key, the double-flash key and the wheelchair indicator light adopt a key and indicator light combined structure mode or a man-machine interface structure mode.

10. The scooter or wheelchair indicator light control circuit of claim 1, wherein: the MCU singlechip is electrically connected with the base electrode of the 6 th triode after the 38 th resistor is connected in series with the 2 nd functional pin, the collector electrode of the 6 th triode is connected with the brake lamp in series, and the base electrode of the 6 th triode is electrically connected with the power supply after the 41 st resistor is connected in series.