Flasher with buzzer for vehicle

Abstract

This utility model relates to the technical field of automotive accessories, specifically to a vehicle flasher with a buzzer function. Key technical features include a mounting base, a circuit module, a cable, and an interface. The mounting base also includes a cable hole for the cable to pass through and an interface for signal communication. The interface includes pins J1 (EN), J2 (VIN), J3 (GND), J4 (VOUT), J5 (+5V), J6 (D+), J7 (D-), J8 (GND), J9 (SGIN), J10 (SDOUT), and J11 (GND). Pins S1 (J12), S2 (J13), S- (J14), and S+ (J15) are used for connection. A cable connects pins S1 (J12) and S2 (J13). The circuit module includes a fast charging module, a DC-DC converter module, a flash unit, and a speaker module. Pins J5-J8 connect to the fast charging module, which outputs a 12V / 10A signal to the DC-DC converter module. Pins J1-J4 connect to the DC-DC converter module, pins J9-J11 connect to the flash unit, and pins J12-J15 connect to the speaker module. This invention improves usability and convenience through functional integration and interface signal design.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive accessories, specifically to a vehicle flasher with a buzzer function. Background Technology

[0002] Turn signals are very common on the headlights of cars and electric vehicles. On electric vehicles, they primarily serve two core functions: turn signal indication and safety warning. By controlling the flashing frequency of the turn signals (typically 60-120 times per minute), the turn signal clearly conveys the turning intention to other road users. Anti-theft warning: Some models integrate anti-theft flashers that automatically trigger high-frequency flashing when the vehicle is illegally moved.

[0003] Based on the above application environment, relying solely on flashing warnings is insufficient for burglar alarms. Adding an audible alarm would require additional components such as a speaker and speaker driver, making the entire device fragmented and not integrated enough.

[0004] The challenge is how to integrate the buzzer function with the flash to facilitate connection and operation. Utility Model Content

[0005] In order to solve the technical problems and shortcomings of the prior art, the present invention provides a vehicle flasher with a buzzer function, which can overcome the technical problems of scattered components and inconvenient wiring, and can improve the functional integration of the flasher and the convenience of signal connection and transmission.

[0006] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0007] A vehicle flasher with a buzzer function includes a mounting base, a horn cover, a circuit module, a cable, and an interface. The mounting base is provided with a fixing ear, the circuit module is built into the mounting base and sealed and fixed by the horn cover, and the mounting base is also provided with a cable hole for the cable to pass through and an interface for signal communication.

[0008] The interface includes EN pin J1, VIN pin J2, GND pin J3, VOUT pin J4, +5V pin J5, D+ pin J6, D- pin J7, GND pin J8, SGIN pin J9, SDOUT pin J10, GND pin J11, S1 pin J12, S2 pin J13, S- pin J14, and S+ pin J15;

[0009] The cable is used to connect pin J12 of S1 and pin J13 of S2.

[0010] The circuit module includes a fast charging module, a DC-DC converter module, a flash unit, and a speaker module. Pins J5-J8 are used to connect to the fast charging module. The fast charging module outputs a 12V / 10A electrical signal to the DC-DC converter module. Pins J1-J4 are connected to the DC-DC converter module. Pins J9-J11 are connected to the flash unit. Pins J12-J15 are used to connect to the speaker module.

[0011] Preferably, the fast charging module includes chip U3 and chip U2. Chip U2 is model FT5330 and chip U3 is model FS112K. The fourth pin of chip U2 is connected to the output pin J4 of the DC-DC conversion module.

[0012] Preferably, the DC-DC conversion module includes a chip U1, and the chip U1 is model EG1173.

[0013] Preferably, the DC-DC conversion module further includes an NMOS transistor Q1, resistors R8 and R7, a diode D2, resistors RS1, R6, and R9, an NMOS transistor Q2, capacitors C3 and C4, resistors R5 and R6, and an inductor L1.

[0014] Pin J2 is connected to the drain of NMOS transistor Q1. The gate of NMOS transistor Q1 is connected to the anode of diode D2 and one end of resistor R7. The cathode of diode D2 is connected to one end of resistor R8. The other end of resistor R8 is connected to the other end of resistor R7 and pin 15 of chip U1.

[0015] The source of NMOS transistor Q1 is connected to one end of resistor RS1 and one end of resistor R6. The other end of resistor R6 is connected to one end of resistor R5, one end of capacitor C4, and pin 13 of chip U1. The other end of resistor RS1 is connected to the other end of resistor R5, the other end of capacitor C4, pin 14 of chip U1, the drain of NMOS transistor Q2, and one end of inductor L1. The other end of inductor L1 is connected to pin J4 and then to pin 8 of chip U1 via a current feedback circuit.

[0016] The source of NMOS transistor Q2 is grounded, and the gate of NMOS transistor Q2 is connected to the eleventh pin of chip U1 through resistor R9.

[0017] Preferably, the flash unit includes a chip U4, and the chip U4 is model MST053.

[0018] Preferably, the speaker module includes a memory chip U5 and a driver module. Pins J14 and J15 are connected to the memory chip U5 to provide audio data signals. The memory chip U5 is model FT60F11. The fifth pin of the memory chip U5 is the output terminal connected to the driver module.

[0019] Preferably, the driving module includes transistors Q7 and Q8, transformer T1, capacitor C16, resistor R20, and resistor R21. One end of capacitor C16 is connected to chip U5, and the other end of capacitor C16 is connected to the base of transistor Q7 and one end of resistor R20. The collector of transistor Q7 is connected to the collector of transistor Q8 and the second end of transformer T1. The other end of resistor R20 and the emitter of transistor Q8 are grounded. The emitter of transistor Q7 is connected to the base of transistor Q8. The first end of transformer T1 is connected to pin J4, and the third and fifth ends of transformer T1 are respectively connected to the two ends of resistor R21 for connecting to the speaker.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model integrates the data line and power supply line, and integrates the interface from pins J1 to J15. It not only facilitates power supply connection and data transmission, but also provides an external cable for easy maintenance. The circuit module integrates speaker playback function and fast charging power conversion function on the basis of the original function of the flasher, and protects the entire mounting base and speaker cover, making it easy to use and maintain.

[0022] 2. In this utility model, the circuit design of the fast charging module can adapt to external USB interfaces or 5V power transmission such as USB. Through the fast charging module and DC-DC conversion module of this application, 5V input can be converted into 12V / 10A output, which can improve the driving capability of the flash and speaker.

[0023] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of this application;

[0026] Figure 2 yes Figure 1 A diagram of the back of the building;

[0027] Figure 3 This is a circuit diagram of the fast charging module in an embodiment of this application;

[0028] Figure 4 This is the DC-DC conversion module in the embodiments of this application;

[0029] Figure 5 This is a circuit diagram of the flash unit in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the speaker module in an embodiment of this application.

[0031] Explanation of reference numerals for major components:

[0032] 1. Mounting bracket; 2. Speaker cover; 301. Fast charging module; 302. DC-DC converter module; 303. Flash unit; 304. Speaker module; 4. Cable; 5. Interface; 6. Mounting ear. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following specific examples illustrate the embodiments of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0034] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0035] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, it should be noted that in the description of this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances.

[0036] Example:

[0037] This invention discloses a vehicle hazard light 303 with a buzzer function, see reference. Figure 1 As shown, it includes mounting base 1, speaker cover 2, and circuit module (not included as it is built-in). Figure 1 (as shown in the image), cable 4 and interface 5. A fixing ear 6 is provided on the mounting base 1, and the back of the fixing ear 6 is as follows: Figure 2 The design features a convex, radiating texture, which enhances the firmness of the bolt fixation and prevents loosening. The circuit module is built into the mounting base 1 and secured by the horn cover 2. The mounting base 1 also includes a cable hole 4 for the cable 4 to pass through and an interface 5 for signal communication. The challenge of this design lies in the signal design of interface 5, in coordination with the functional module.

[0038] Interface 5 includes the following pins: EN (J1), VIN (J2), GND (J3), VOUT (J4), +5V (J5), D+ (J6), D- (J7), GND (J8), SGIN (J9), SDOUT (J10), GND (J11), S1 (J12), S2 (J13), S- (J14), and S+ (J15). For ease of explanation, [the following is a more detailed explanation, but the text is incomplete and requires further context]. Figure 2 , Figure 4 , Figure 5 and Figure 6 understand.

[0039] refer to Figure 6 Cable 4 is used to connect pins J12 (S1) and J13 (S2), enabling the connection of external speaker devices.

[0040] The circuit module includes a fast charging module 301, a DC-DC converter module 302, a flash unit 303, and a speaker module 304. Pins J5-J8 are used to connect to the fast charging module 301. The fast charging module 301 outputs a 12V / 10A electrical signal to the DC-DC converter module 302. Pins J1-J4 are connected to the DC-DC converter module 302. Pins J9-J11 are connected to the flash unit 303. Pins J12-J15 are used to connect to the speaker module 304.

[0041] Based on the above plan, more specific details are as follows. Figure 3 In this module, fast charging module 301 includes chip U3 and chip U2. Chip U2 is model FT5330, and chip U3 is model FS112K. The fourth pin of chip U2 is connected to the output pin J4 of DC-DC conversion module 302. This mainly involves fast charging identification and power supply chips. Using the above-mentioned chips in conjunction with their peripheral circuitry, fast charging input identification is achieved. Pins J5-J8 can be used to connect to the USB interface 5 of peripheral devices.

[0042] exist Figure 4In this configuration, the DC-DC converter module 302 includes a chip U1, model number EG1173. Combined with the peripheral circuitry of chip U1, the DC-DC converter module 302 specifically also includes an NMOS transistor Q1, resistors R8 and R7, a diode D2, resistors RS1, R6, and R9, an NMOS transistor Q2, capacitors C3 and C4, resistors R5 and R6, and an inductor L1.

[0043] Pin J2 is connected to the drain of NMOS transistor Q1. The gate of NMOS transistor Q1 is connected to the anode of diode D2 and one end of resistor R7. The cathode of diode D2 is connected to one end of resistor R8. The other end of resistor R8 is connected to the other end of resistor R7 and pin 15 of chip U1.

[0044] The source of NMOS transistor Q1 is connected to one end of resistor RS1 and one end of resistor R6. The other end of resistor R6 is connected to one end of resistor R5, one end of capacitor C4, and pin 13 of chip U1. The other end of resistor RS1 is connected to the other end of resistor R5, the other end of capacitor C4, pin 14 of chip U1, the drain of NMOS transistor Q2, and one end of inductor L1. The other end of inductor L1 is connected to pin J4 and then to pin 8 of chip U1 through a current feedback circuit.

[0045] The source of NMOS transistor Q2 is grounded, and the gate of NMOS transistor Q2 is connected to the eleventh pin of chip U1 through resistor R9.

[0046] The current feedback circuit consists of resistors R13, R12, R14, R15, and capacitor C6. Connect one end of resistor R12 and one end of R13 to output pin J4. Connect the other end of resistor R13 to capacitor C6. Connect the other end of capacitor C6 to the other end of resistor R12, one end of resistor R15, one end of resistor R14, and pin 8 of chip U1. The other ends of resistors R14 and R15 are grounded. This forms a resistor voltage divider and a capacitor filter, effectively feeding back the output voltage status to chip U1 in real time, thus achieving a stable DC voltage conversion output.

[0047] In the circuit described above, resistor RS1 is used for current sampling, which feeds back the current output signal to chip U1, thereby achieving a stable current output. Based on this circuit structure, a reliable 12V voltage and 10A current output can be effectively achieved, facilitating the driving of subsequent circuits.

[0048] In this plan, reference Figure 5 As shown, the flash unit 303 includes chip U4, model MST053. Pins J9-J11 are used to output alternating flash signals.

[0049] Furthermore, in this solution, the speaker module 304 includes a memory chip U5 and a driver module. Pins J14 and J15 are connected to the memory chip U5 to provide audio data signals. The memory chip U5 is an FT60F11 model. The fifth pin of the memory chip U5 is the output terminal, connected to the driver module. The memory chip U5 can store some audio data, allowing the speaker to emit different audio frequencies. Pins J14-J15 are used to transmit audio data, facilitating sound control. To improve the speaker's power and drive, a separate circuit needs to be designed.

[0050] This solution uses a driver module to drive the speaker. The driver module includes transistors Q7 and Q8, transformer T1, capacitor C16, resistor R20, and resistor R21. One end of capacitor C16 is connected to chip U5, and the other end of capacitor C16 is connected to the base of transistor Q7 and one end of resistor R20. The collector of transistor Q7 is connected to the collector of transistor Q8 and the second terminal of transformer T1. The other end of resistor R20 and the emitter of transistor Q8 are grounded. The emitter of transistor Q7 is connected to the base of transistor Q8. The first terminal of transformer T1 is connected to pin J4, and the third and fifth terminals of transformer T1 are connected to the two ends of resistor R21 respectively for connecting the speaker.

[0051] Therefore, this utility model integrates the data lines and power supply lines, and integrates the interface 5 from pins J1 to J15. This not only facilitates power supply connection and data transmission, but also provides an external cable 4 for easy maintenance. The circuit module integrates speaker playback and fast charging power conversion functions on top of the original functions of the flash unit 303, protecting the entire mounting base 1 and speaker cover 2, making it easy to use and maintain. The circuit design of the fast charging module 301 can adapt to external USB interface 5 or 5V power transmission via USB. Through the fast charging module 301 and DC-DC conversion module 302 of this application, 5V input can be converted to 12V / 10A output, improving the driving capability of the flash unit 303 and the speaker.

[0052] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle flasher with a buzzer function, comprising a mounting base (1), a horn cover (2), a circuit module, a cable (4), and an interface (5), characterized in that, The mounting base (1) is provided with a fixing ear (6), the circuit module is built into the mounting base (1) and sealed and fixed by the horn cover (2), the mounting base (1) is also provided with a cable (4) hole for the cable (4) to pass through and an interface (5) for signal communication; The interface (5) includes EN pin J1, VIN pin J2, GND pin J3, VOUT pin J4, +5V pin J5, D+ pin J6, D- pin J7, GND pin J8, SGIN pin J9, SDOUT pin J10, GND pin J11, S1 pin J12, S2 pin J13, S- pin J14, and S+ pin J15; The cable (4) is used to connect pin J12 of S1 and pin J13 of S2. The circuit module includes a fast charging module (301), a DC-DC converter module (302), a flash unit (303), and a speaker module (304). Pins J5-J8 are used to connect to the fast charging module (301). The fast charging module (301) outputs a 12V / 10A electrical signal to the DC-DC converter module (302). Pins J1-J4 are connected to the DC-DC converter module (302). Pins J9-J11 are connected to the flash unit (303). Pins J12-J15 are used to connect to the speaker module (304).

2. The vehicle flasher with buzzer function according to claim 1, characterized in that, The fast charging module (301) includes chip U3 and chip U2. The model of chip U2 is FT5330 and the model of chip U3 is FS112K. The fourth pin of chip U2 is connected to the output terminal J4 pin of the DC-DC conversion module (302).

3. The vehicle flasher with buzzer function according to claim 2, characterized in that, The DC-DC conversion module (302) includes a chip U1, which is model EG1173.

4. The vehicle flasher with buzzer function according to claim 3, characterized in that, The DC-DC conversion module (302) also includes an NMOS transistor Q1, resistors R8 and R7, a diode D2, resistors RS1, R6, and R9, an NMOS transistor Q2, capacitors C3 and C4, resistors R5 and R6, and an inductor L1. Pin J2 is connected to the drain of NMOS transistor Q1. The gate of NMOS transistor Q1 is connected to the anode of diode D2 and one end of resistor R7. The cathode of diode D2 is connected to one end of resistor R8. The other end of resistor R8 is connected to the other end of resistor R7 and pin 15 of chip U1. The source of NMOS transistor Q1 is connected to one end of resistor RS1 and one end of resistor R6. The other end of resistor R6 is connected to one end of resistor R5, one end of capacitor C4, and pin 13 of chip U1. The other end of resistor RS1 is connected to the other end of resistor R5, the other end of capacitor C4, pin 14 of chip U1, the drain of NMOS transistor Q2, and one end of inductor L1. The other end of inductor L1 is connected to pin J4 and then to pin 8 of chip U1 via a current feedback circuit. The source of NMOS transistor Q2 is grounded, and the gate of NMOS transistor Q2 is connected to the eleventh pin of chip U1 through resistor R9.

5. The vehicle flasher with buzzer function according to claim 1, characterized in that, The flash unit (303) includes a chip U4, which is model MST053.

6. The vehicle flasher with buzzer function according to claim 1, characterized in that, The speaker module (304) includes a memory chip U5 and a driver module. Pins J14 and J15 are connected to the memory chip U5 to provide audio data signals. The memory chip U5 is model FT60F11. The fifth pin of the memory chip U5 is the output terminal connected to the driver module.

7. The vehicle flasher with buzzer function according to claim 6, characterized in that, The driving module includes transistors Q7 and Q8, transformer T1, capacitor C16, resistor R20, and resistor R21. One end of capacitor C16 is connected to chip U5, and the other end of capacitor C16 is connected to the base of transistor Q7 and one end of resistor R20. The collector of transistor Q7 is connected to the collector of transistor Q8 and the second end of transformer T1. The other end of resistor R20 and the emitter of transistor Q8 are grounded. The emitter of transistor Q7 is connected to the base of transistor Q8. The first end of transformer T1 is connected to pin J4, and the third and fifth ends of transformer T1 are respectively connected to the two ends of resistor R21 for connecting to the speaker.

Images