A two-wheel electric vehicle continuous buzzer alarm horn

Abstract

The utility model discloses a two -wheeled electric vehicle continuous buzzing warning horn relates to the field of buzzing horn, including horn main part, horn switch, control module, trigger module and drive module, horn main part is connected with horn switch, drive module and trigger module, trigger module is connected with horn switch and control module, trigger module is used for generating trigger signal according to the opening and closing condition of horn switch and transmission to control module, control module is used for generating drive signal according to trigger signal, when horn switch is closed, drive signal is used for controlling drive module drive horn main part and exports the buzzing sound group, and the buzzing sound group includes the buzzing of different frequency many times, the continuous buzzing warning horn that the application provides can promote early warning accuracy, and the use experience is optimized, and the riding safety is promoted.

Description

Technical Field

[0001] This utility model relates to the field of buzzer horns, and in particular to a continuous buzzer warning horn for two-wheeled electric vehicles. Background Technology

[0002] In the current two-wheeled electric vehicle market, mainstream horn products generally adopt a "one-way single-pass" design. Its working logic is that a light touch on the horn switch achieves a single sound, while a long press on the switch continuously connects the circuit to make the horn output a stable and single sound signal.

[0003] Traditional horns of this type have obvious functional defects in actual use scenarios: when two-wheeled electric vehicles travel to areas with obstructed visibility, such as intersections or corners in residential areas, they need to convey a "vehicle is about to exit" warning signal to pedestrians and vehicles in the opposite lane or to the side. However, the single sound of a traditional horn is weak in its warning effect and is easily masked by environmental noise; continuous sounding produces a harsh, long tone, which not only disturbs the surrounding environment but also fails to convey the accurate information of "about to exit" through sound differences, making it difficult for oncoming traffic participants to quickly recognize the warning intention and increasing the risk of collision. Utility Model Content

[0004] In response to the aforementioned problems and technical requirements, the applicant has proposed a continuous buzzing warning horn for two-wheeled electric vehicles.

[0005] The technical solution of this utility model is as follows: A continuous buzzing warning horn for a two-wheeled electric vehicle includes a horn body, a horn switch, a control module, a trigger module, and a drive module. The horn body is connected to the horn switch, the drive module, and the trigger module, and the trigger module is connected to the horn switch and the control module. The triggering module generates a trigger signal based on the opening and closing status of the horn switch and transmits it to the control module. The control module generates a drive signal based on the trigger signal. When the horn switch is closed, the drive signal controls the drive module to drive the horn body to output a buzzer sound group, which includes multiple buzzers with different frequencies.

[0006] A further technical solution is that the horn body includes a positive wire, a negative wire, and a switch wire. The positive wire is connected to the positive terminal of the battery, the negative wire is connected to the negative terminal of the battery, and the switch wire is connected to the negative terminal of the battery through a horn switch.

[0007] A further technical solution includes a voltage regulator module, which is used to supply power to the control module and the trigger module; The voltage regulator module includes a diode D1, capacitors C4, C5, and C9, an electrolytic capacitor E1, and a DC-DC converter chip U1. The positive terminal of the diode D1 serves as the input terminal of the voltage regulator circuit and is connected to the input voltage VIN. The negative terminal of the diode D1 is connected to the positive terminal of the electrolytic capacitor E1, one end of the capacitor C9, and the fifth to eighth pins of the DC-DC converter chip U1. The fourth pin of the DC-DC converter chip U1 is connected to the first pin through capacitor C5, and the second pin of the DC-DC converter chip U1 is connected to the first pin through capacitor C4.

[0008] A further technical solution is that the voltage regulator module also includes resistors R1, R3, and R6, inductor L1, diode D2, electrolytic capacitor E2, and electrolytic capacitor E3. The third pin of the DC-DC converter chip U1 is connected to one end of resistor R1 and one end of resistor R3. The other end of resistor R3 is connected to one end of inductor L1 and the negative terminal of diode D2. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to the other end of resistor R1. The other end of inductor L1 is also connected to the positive terminals of electrolytic capacitor E2 and E3, and one end of resistor R6, forming the output terminal of the voltage regulator circuit. The negative terminals of electrolytic capacitor E2 and E3, and the other end of resistor R6 are grounded.

[0009] A further technical solution is that the trigger module includes resistor R7, resistor R8 and diode D3. One end of resistor R7 is connected to the control module, the other end of resistor R7 is connected to one end of resistor R8 and the positive terminal of diode D3, the other end of resistor R8 is connected to the output terminal of the voltage regulator circuit, the negative terminal of diode D3 is connected to one end of the horn switch and the switch line, and the other end of the horn switch is connected to the negative terminal of the battery.

[0010] A further technical solution is that the driving module includes transistors Q1, Q2, Q8, and Q5, resistors R2, R4, R9, R12, R15, and R16. The emitter of transistor Q1 is connected to one end of resistor R2, one end of resistor R9, and the emitter of transistor Q2. The other ends of resistor R2 and resistor R9 are connected to the input voltage VIN. The collector of transistor Q1 is connected to the collector of transistor Q8. The emitter of transistor Q8 is connected to the emitter of transistor Q5. The collector of transistor Q5 is connected to the collector of transistor Q2. The base of transistor Q1 is connected to one end of resistor R12, the base of transistor Q8 is connected to one end of resistor R16, the base of transistor Q2 is connected to one end of resistor R4, and the base of transistor Q5 is connected to one end of resistor R15. The other ends of resistors R16 and R15 are connected to the control module. One end of resistor R12 and the collector of transistor Q2 are connected to one end of the sound-emitting unit inside the speaker body. The collector of transistor Q1 and the other end of resistor R4 are connected to the other end of the sound-emitting unit inside the speaker body.

[0011] A further technical solution is that the interval between two adjacent beeps in each beep group is preset, and after the output of each beep group ends, the control module enters a locked state, and the locked state lasts for a preset time. During the locked state, the control module stops responding to trigger signals.

[0012] A further technical solution includes a miniature DIP switch, which is connected to the control module and used to adjust the number of beeps in the buzzer group and the frequency of each beep.

[0013] A further technical solution includes multiple LED warning lights, which are connected to a control module. The control module controls the multiple LED warning lights to light up when the main speaker sounds a buzzer.

[0014] The beneficial technical effects of this utility model are: 1. Improve the accuracy of early warnings: By using the mode of "one-time on / off trigger, multiple consecutive beeps", short-duration, intermittent sound waves of different frequencies are output, which is significantly different from the traditional single sound wave, allowing oncoming traffic participants to quickly identify the warning information that "a vehicle is about to exit", reducing reaction time.

[0015] 2. Optimized user experience: No need to press and hold the switch, a single trigger is enough to provide an effective warning, making operation more convenient; the duration of multiple consecutive beeps is controllable (about 1-2 seconds), avoiding noise interference caused by long beeps, balancing warning effectiveness and environmental friendliness.

[0016] 3. Wide range of applicable scenarios: It is especially suitable for areas with obstructed visibility, such as intersections, corners of residential areas, and garage exits. It can also be used as a supplementary mode to regular prompts (such as when passing pedestrians) to improve cycling safety. Attached Figure Description

[0017] Figure 1 This is a structural block diagram of one embodiment of the continuous buzzer warning horn for a two-wheeled electric vehicle provided by this utility model.

[0018] Figure 2 This is a circuit diagram of one embodiment of the voltage regulator module provided by this utility model.

[0019] Figure 3 This is a circuit diagram of one embodiment of the trigger module provided by this utility model.

[0020] Figure 4 This is a circuit schematic diagram of one embodiment of the driving module provided by this utility model.

[0021] Figure 5 This is a circuit diagram of one embodiment of the control module provided by this utility model. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0023] This utility model provides a continuous buzzer warning horn for a two-wheeled electric vehicle, including a horn body, a horn switch, a control module, a trigger module, and a drive module. The horn body is connected to the horn switch, the drive module, and the trigger module, and the trigger module is connected to the horn switch and the control module. The triggering module generates a trigger signal based on the opening and closing status of the horn switch and transmits it to the control module. The control module generates a drive signal based on the trigger signal. When the horn switch is closed, the drive signal controls the drive module to drive the horn body to output a buzzer sound group, which includes multiple buzzers with different frequencies.

[0024] Specifically, the interval between two adjacent beeps in each beep group is a preset time interval. After each beep group is output, the control module enters a locked state, and the locked state lasts for a preset time. During the locked state, the control module stops responding to the trigger signal. That is, after outputting a beep group, the control module automatically locks for the preset time and does not perform any action according to the trigger signal during the preset time, so as to avoid repeated triggering of the output beep group in a short period of time, which would cause continuous beeping interference.

[0025] The preset lock time, preset interval time, number of beeps, duration of each beep, and frequency can all be flexibly set. In one embodiment of this utility model, when the horn switch is closed, the control module receives a valid level trigger signal and immediately sends a corresponding drive signal to the drive module. The drive module drives the horn body to output 3 beeps, each beep lasting 0.3 seconds, with an interval of 0.2 seconds between adjacent beeps, for a total duration of 1.3 seconds. The frequency of each beep is different. After a single trigger, the control module automatically locks for 1.5 seconds, and can respond to the next trigger signal after 1.5 seconds.

[0026] The horn body adopts a size compatible with conventional horns for two-wheeled electric vehicles (approximately 8-12cm in diameter and 3-5cm in thickness). The outer shell is made of ABS flame-retardant material to ensure high temperature resistance and vibration resistance (suitable for the bumpy environment of electric vehicles). An internal sound-producing unit (dynamic speaker) is installed, supporting the output of multiple different audio frequencies (e.g., when outputting three beeps sequentially, the first sound is at 800Hz, the second at 1000Hz, and the third at 900Hz), to enhance the alertness through frequency differences. The stability of the horn body under different voltages (e.g., 48V-72V, covering the mainstream electric vehicle battery voltage), temperatures (-20℃-60℃), and vibration environments must meet the operating conditions of two-wheeled electric vehicles.

[0027] The horn body includes a positive wire, a negative wire, and a switch wire. The positive wire is connected to the positive terminal of the battery, the negative wire is connected to the negative terminal of the battery, and the switch wire is connected to the negative terminal of the battery through a horn switch. The battery is an electric vehicle battery (usually a 48V / 60V DC power supply). The positive wire, negative wire, and switch wire are all 0.5mm² copper core wires, wrapped with a PVC insulating sheath to ensure stable conductivity and resistance to aging.

[0028] The horn body can use the existing horn mounting bracket of the two-wheeled electric vehicle to fix the horn at the front of the vehicle (such as below the headlight or near the handlebars), ensuring that the sound direction is forward and the sound wave propagation is not significantly obstructed.

[0029] When the horn body described in this application is installed on a two-wheeled electric vehicle, the horn switch can use the existing horn switch of the two-wheeled electric vehicle. Simply disconnect the wiring of the existing horn and connect the horn body of this application to the electric vehicle battery according to the above connection method, resulting in high installation adaptability. In some embodiments, the horn switch can be an independent warning switch added to the existing horn switch of the two-wheeled electric vehicle. The independent warning switch can be installed on the side of the handlebars (for easy thumb triggering). One end of the independent warning switch is connected to the switch wire of the horn body, and the other end is connected to the negative terminal of the battery. In this case, the existing horn of the two-wheeled electric vehicle can also be used normally, achieving a dual-mode warning of "existing horn + continuous buzzer horn provided in this application".

[0030] Furthermore, a protection module is provided on the positive line. The protection module includes a resettable fuse and a reverse protection diode connected in series in the positive line. The positive terminal of the reverse protection diode is connected to the positive terminal of the battery, and the negative terminal is connected to one end of the resettable fuse. The resettable fuse is used to prevent short circuits from damaging the speaker body or the electric vehicle battery. The reverse protection diode is used to prevent hardware burnout caused by reversed wiring, thereby improving product reliability.

[0031] The serial drama alarm speaker described in this application also includes a voltage regulator module, which supplies power to the control module and the trigger module. Specifically, the voltage regulator module converts the battery voltage into the voltage (5V) required by the control module and the trigger module. Please refer to... Figure 2 The voltage regulator module includes a diode D1, capacitors C4, C5, and C9, an electrolytic capacitor E1, and a DC-DC converter chip U1. The anode of diode D1 serves as the input terminal of the voltage regulator circuit, connected to the input voltage VIN. The cathode of diode D1 is connected to the anode of electrolytic capacitor E1, one end of capacitor C9, and pins five to eight of the DC-DC converter chip U1. Pin four of the DC-DC converter chip U1 is connected to pin one via capacitor C5, and pin two of the DC-DC converter chip U1 is connected to pin one via capacitor C4. The input voltage VIN is provided by a battery, and the DC-DC converter chip U1 is model SD4943.

[0032] The voltage regulator module also includes resistors R1, R3, and R6, inductor L1, diode D2, electrolytic capacitor E2, and electrolytic capacitor E3. The third pin of the DC-DC converter chip U1 is connected to one end of resistor R1 and one end of resistor R3. The other end of resistor R3 is connected to one end of inductor L1 and the negative terminal of diode D2. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to the other end of resistor R1. The other end of inductor L1 is also connected to the positive terminals of electrolytic capacitors E2 and E3, and one end of resistor R6, forming the output terminal of the voltage regulator circuit. The negative terminals of electrolytic capacitors E2 and E3, and the other end of resistor R6 are grounded.

[0033] Please refer to Figure 3 The trigger module includes resistors R7 and R8, and diode D3. One end of resistor R7 (the "M key input" terminal shown in the figure) is connected to the control module. The other end of resistor R7 is connected to one end of resistor R8 and the positive terminal of diode D3. The other end of resistor R8 is connected to the output terminal of the voltage regulator circuit. The negative terminal of diode D3 is connected to one end of the horn switch and the switch line. The other end of the horn switch is connected to the negative terminal of the battery. When the horn switch is open, the trigger module outputs a high-level (invalid) trigger signal. When the horn switch is closed, the switch line is connected to the negative line, and the trigger signal becomes a low-level (valid) trigger signal.

[0034] Please refer to Figure 4 The driving module includes transistors Q1, Q2, Q8, and Q5, resistors R2, R4, R9, R12, R15, and R16. In this embodiment, transistors Q1 and Q2 are PNP transistors, and transistors Q8 and Q5 are NPN transistors. The emitter of transistor Q1 is connected to one end of resistor R2, one end of resistor R9, and the emitter of transistor Q2. The other ends of resistors R2 and R9 are connected to the input voltage VIN. The collector of transistor Q1 is connected to the collector of transistor Q8, the emitter of transistor Q8 is connected to the emitter of transistor Q5, and the collector of transistor Q5 is connected to the collector of transistor Q2. The base of transistor Q1 is connected to one end of resistor R12, the base of transistor Q8 is connected to one end of resistor R16, the base of transistor Q2 is connected to one end of resistor R4, and the base of transistor Q5 is connected to one end of resistor R15. The other ends of resistors R16 and R15 are connected to the control module. One end of resistor R12 and the collector of transistor Q2 are connected to one end of the sound-emitting unit inside the speaker body. The collector of transistor Q1 and the other end of resistor R4 are connected to the other end of the sound-emitting unit inside the speaker body. That is... Figure 4 The speaker 1 terminal is connected to one end of the sound-generating unit inside the speaker body, and the speaker 2 terminal is connected to one end of the sound-generating unit inside the speaker body. In a specific implementation, the speaker 1 terminal and the speaker 2 terminal can be connected to the sound-generating unit through the lead wire interface P1, and one end of the resistor R7 in the trigger module can also be connected to the control module through the lead wire interface P1.

[0035] The control module can be a microcontroller. In this embodiment, the microcontroller model includes HC89S703, such as... Figure 5 As shown, pin 9 of microcontroller U2 is connected to the output of the voltage regulator module to receive a 5V power supply. Pin 9 is also connected to pin 7 via capacitor C2 and grounded. Pins 6 and 5 of microcontroller U2 are connected to the bases of transistors Q8 and Q5, respectively, to output drive signals to control the drive module. The specific method by which the microcontroller controls the drive module to drive the sound unit is consistent with existing technology and will not be described in detail here.

[0036] One embodiment of the continuous buzzer warning horn's working process is as follows: The horn body is connected to the electric vehicle battery via positive and negative wires, and is in a low-power standby state (standby current ≤10mA, not affecting the electric vehicle battery's range). The microcontroller detects the level signal of the horn switch line in real time, which is the trigger signal (the horn switch line is at a high level in standby mode). When the user presses the horn switch (or independent warning switch), the horn switch closes, the switch line connects to the negative wire, and the trigger signal becomes low level. After detecting the level change, the microcontroller immediately executes the preset program, outputs the corresponding drive signal, and drives the sound-emitting unit to complete 3 buzzers in the sequence of "800Hz (0.3 seconds) → interval 0.2 seconds → 1000Hz (0.3 seconds) → interval 0.2 seconds → 900Hz (0.3 seconds)". After the 3 buzzers, the microcontroller automatically resets and enters a 1.5-second lockout state. During the lockout state, it does not respond to new trigger signals. After the lockout state ends, it returns to the standby state, waiting for the next trigger.

[0037] In some embodiments, the continuous buzzer warning horn of the two-wheeled electric vehicle further includes a miniature DIP switch. This miniature DIP switch is connected to the control module and is used to adjust the number of beeps in the buzzer group and the frequency of each beep. Specifically, the miniature DIP switch can be located on the horn's main housing and can be connected to pin 1 of the aforementioned microcontroller U2. The number of beeps (e.g., 2, 3, 4) and combinations of beep frequencies can be selected via the DIP switch. For example, when beeping 3 times, three frequency combinations can be set: 1: 700Hz / 900Hz / 800Hz, 2: 800Hz / 1000Hz / 900Hz, and 3: 900Hz / 1100Hz / 1000Hz. Users can adjust the beep parameters according to the usage environment (e.g., selecting 4 beeps in noisy city roads, or 2 beeps in quiet residential areas) to improve scene adaptability. The triggering and control logic of the beep is the same as described above; different parameter commands are input to the microcontroller via the DIP switch to achieve parameter adjustment.

[0038] In some embodiments, the continuous buzzer warning horn of the two-wheeled electric vehicle also includes multiple LED warning lights. These LED warning lights are connected to a control module, which controls them to illuminate when the horn body sounds a buzzer, thus achieving synchronized light and sound warning. Specifically, two red LED warning lights (0.5W power) can be added to the outside of the horn body. These lights can be connected to pin 15 of the aforementioned microcontroller U2, linking the LED drive signals with the sound-emitting unit's drive signals. The microcontroller synchronously controls the LEDs to flash synchronously each time a buzzer sounds (on during a buzzer, off during intervals). This dual warning of "sound + light" enhances the warning effect in low-visibility environments such as nighttime, rain, and fog.

[0039] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0040] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this disclosure.

Claims

1. A continuous buzzer warning horn for a two-wheeled electric vehicle, characterized in that, It includes a horn body, a horn switch, a control module, a trigger module, and a drive module. The horn body is connected to the horn switch, the drive module, and the trigger module. The trigger module is connected to the horn switch and the control module. The triggering module generates a trigger signal based on the opening and closing status of the horn switch and transmits it to the control module. The control module generates a drive signal based on the trigger signal. When the horn switch is closed, the drive signal controls the drive module to drive the horn body to output a buzzer sound group, which includes multiple buzzers with different frequencies.

2. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 1, characterized in that, The speaker body includes a positive wire, a negative wire, and a switch wire. The positive wire is connected to the positive terminal of the battery, the negative wire is connected to the negative terminal of the battery, and the switch wire is connected to the negative terminal of the battery through a speaker switch.

3. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 2, characterized in that, It also includes a voltage regulator module, which is used to supply power to the control module and the trigger module; The voltage regulator module includes a diode D1, capacitors C4, C5, and C9, an electrolytic capacitor E1, and a DC-DC converter chip U1. The positive terminal of the diode D1 serves as the input terminal of the voltage regulator circuit and is connected to the input voltage VIN. The negative terminal of the diode D1 is connected to the positive terminal of the electrolytic capacitor E1, one end of the capacitor C9, and the fifth to eighth pins of the DC-DC converter chip U1. The fourth pin of the DC-DC converter chip U1 is connected to the first pin through capacitor C5, and the second pin of the DC-DC converter chip U1 is connected to the first pin through capacitor C4.

4. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 3, characterized in that, The voltage regulator module also includes resistors R1, R3, and R6, inductor L1, diode D2, electrolytic capacitor E2, and electrolytic capacitor E3. The third pin of the DC-DC converter chip U1 is connected to one end of resistor R1 and one end of resistor R3. The other end of resistor R3 is connected to one end of inductor L1 and the negative terminal of diode D2. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to the other end of resistor R1. The other end of inductor L1 is also connected to the positive terminals of electrolytic capacitors E2 and E3, and one end of resistor R6, forming the output terminal of the voltage regulator circuit. The negative terminals of electrolytic capacitors E2 and E3, and the other end of resistor R6 are grounded.

5. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 2, characterized in that, The trigger module includes resistors R7 and R8 and diode D3. One end of resistor R7 is connected to the control module, and the other end of resistor R7 is connected to one end of resistor R8 and the positive terminal of diode D3. The other end of resistor R8 is connected to the output terminal of the voltage regulator circuit. The negative terminal of diode D3 is connected to one end of the horn switch and the switch line. The other end of the horn switch is connected to the negative terminal of the battery.

6. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 2, characterized in that, The drive module includes transistors Q1, Q2, Q8, and Q5, resistors R2, R4, R9, R12, R15, and R16. The emitter of transistor Q1 is connected to one end of resistor R2, one end of resistor R9, and the emitter of transistor Q2. The other ends of resistors R2 and R9 are connected to the input voltage VIN. The collector of transistor Q1 is connected to the collector of transistor Q8. The emitter of transistor Q8 is connected to the emitter of transistor Q5. The collector of transistor Q5 is connected to the collector of transistor Q2.

7. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 6, characterized in that, The base of transistor Q1 is connected to one end of resistor R12, the base of transistor Q8 is connected to one end of resistor R16, the base of transistor Q2 is connected to one end of resistor R4, and the base of transistor Q5 is connected to one end of resistor R15. The other ends of resistors R16 and R15 are connected to the control module. One end of resistor R12 and the collector of transistor Q2 are connected to one end of the sound-emitting unit inside the speaker body. The collector of transistor Q1 and the other end of resistor R4 are connected to the other end of the sound-emitting unit inside the speaker body.

8. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 1, characterized in that, The interval between two adjacent beeps in each beep group is preset. After the output of each beep group ends, the control module enters a locked state, and the locked state lasts for a preset time. During the locked state, the control module stops responding to trigger signals.

9. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 1, characterized in that, It also includes a miniature DIP switch, which is connected to the control module and is used to adjust the number of beeps in the buzzer group and the frequency of each beep.

10. The continuous buzzer warning horn for a two-wheeled electric vehicle according to claim 1, characterized in that, It also includes multiple LED warning lights, which are connected to a control module. The control module controls the multiple LED warning lights to light up when the main speaker sounds a buzzer.

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