A new flash relay for new energy commercial vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI YUCHAI NEW ENERGY AUTOMOBILE CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
Smart Images

Figure CN224409144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy commercial vehicles, and in particular to a novel flashing relay for new energy commercial vehicles. Background Technology
[0002] A flashing relay is an automatic control element that uses periodic switching of current to achieve flashing of lights. It is widely used in automotive signal systems, industrial control, and power equipment. By outputting intermittent current, the flashing relay drives turn signals, hazard lights, and other devices to periodically change their brightness, creating a flashing signal. In the field of new energy commercial vehicles, it can not only distinguish between steering and braking scenarios (e.g., flashing on one side during steering, and constantly lit on both sides during braking), but also coordinate the lighting logic when steering and braking occur simultaneously.
[0003] The flashing relay circuits in existing new energy commercial vehicles are relatively simple, but have obvious drawbacks. First, when one of the turn signals malfunctions, the flashing relay circuit cannot transmit information to the vehicle's instrument panel. Therefore, the instrument panel will not indicate a turn signal malfunction, preventing the driver from recognizing the problem and from stopping in time to address it, posing a safety hazard. Furthermore, if one circuit of the relay fails, all turn signals connected to that relay may fail to flash properly, failing to alert surrounding vehicles and pedestrians and increasing the risk of traffic accidents.
[0004] The current design of the flasher relay circuit for new energy commercial vehicles is as follows: the flasher relay, hazard alarm switch, combination switch, instrument cluster and turn signals are connected through the power supply line, 3PIN flasher relay, ground wire and single signal output line, thereby ensuring the normal operation of the turn signals.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide a novel flashing relay for new energy commercial vehicles, which can solve the problems existing in the background technology.
[0007] To achieve the above objectives, this utility model provides a novel flashing relay for new energy commercial vehicles, comprising: a power supply for providing positive power; a ground wire for providing a grounding level; a hazard alarm switch; a combination switch; a combination instrument; and a flashing relay body for providing a level signal to control the hazard alarm switch, the combination switch, and the combination instrument.
[0008] In one or more embodiments, the flashing relay includes at least nine serial ports, each of which includes at least one enable terminal, two input terminals, and six output terminals. The input terminals are used to receive scene signal inputs, and the output terminals are used to output control signals.
[0009] In one or more embodiments, the combination switch is connected between the power supply and the ground wire, the input terminal is connected to the circuit from the power supply to the combination switch, and the combination switch controls the circuit state from the power supply to the input terminal by opening and closing.
[0010] In one or more embodiments, a hazard alarm switch is further provided in the power supply to the input circuit path, the hazard alarm switch being used to identify the input circuit.
[0011] In one or more embodiments, the enable terminal is electrically connected to the power supply.
[0012] In one or more embodiments, the output terminal includes at least left front, left side, left rear, right front, right side, and right rear output pins; wherein the output pins are electrically connected to the signal lights at the corresponding positions of the vehicle.
[0013] In one or more embodiments, the combined instrument is also electrically connected between one or more of the output pins and the indicator light circuit.
[0014] In one or more embodiments, the instrument cluster is installed in the circuits corresponding to the left and right indicator lights to provide immediate feedback on circuit faults.
[0015] In one or more embodiments, the flashing relay includes a buzzer and a flashing frequency adjustment module, wherein the buzzer and the flashing frequency adjustment module are energized when the flashing relay is unloaded.
[0016] Compared with the prior art, the various technical solutions and embodiments provided by this utility model include at least the following technical effects or advantages:
[0017] Through multiple fault detection mechanisms and modular design, the reliability and driving safety of the turn signal system are significantly improved. The no-load detection module inside the relay provides feedback on the no-load status of the vehicle lights and can control abnormal on / off states of the vehicle lights by changing the square wave frequency and waveform through the output signal, alerting pedestrians and drivers. By separating the turn signal circuit, this technical solution allows other normal turn signals to continue working even when individual turn signals fail. A flashing relay sends a signal to double the flashing frequency of the vehicle lights, still providing a certain degree of alertness to surrounding vehicles and pedestrians, ensuring traffic safety. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are intended to explain the invention. They are intended to be seen as illustrative of various combinations of preferred embodiments and do not constitute an undue limitation of the invention. In the drawings:
[0019] Figure 1 A schematic diagram of the overall electronic structure of a novel flashing relay for a new energy commercial vehicle provided by this utility model;
[0020] The labels in the diagram represent: 1-Power supply, 2-Ground wire, 3-Hazard alarm switch, 4-Combination switch, 5-Combination instrument, and 6-Flash relay body. Detailed Implementation
[0021] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises", "made for", etc., shall be understood to include the stated elements or components, without excluding other elements or other components.
[0022] The purpose of this invention is to provide a novel turn signal relay for new energy commercial vehicles, which significantly improves the reliability of the turn signal system and driving safety through multiple fault detection mechanisms and modular design.
[0023] Example 1:
[0024] This embodiment provides a novel flashing relay for new energy commercial vehicles, comprising: a power supply 1, which provides positive power; a ground wire 2, which provides a grounding level; a hazard alarm switch 3; a combination switch 4; a combination instrument 5; and a flashing relay body 6, which provides a level signal to control the hazard alarm switch 3, the combination switch 4, and the combination instrument 5.
[0025] Specifically, in order to inform the driver of fault information when vehicle signal lights malfunction, facilitating troubleshooting and preventing traffic accidents caused by incorrect signal lights in commercial vehicles, this application provides a novel flashing relay. The flashing relay includes a power supply 1, a ground wire 2, a hazard warning switch 3, a combination switch 4, a combination instrument cluster 5, and a flashing relay body 6. The flashing relay receives signals and outputs high and low levels of a waveform to control the flashing of vehicle lights. Through feedback from its internal circuitry, the flashing relay can determine whether there is a fault or no-load in the vehicle light circuit, and then output different control modes to indicate the status of the vehicle lights, thereby preventing traffic accidents.
[0026] In a preferred embodiment of this invention, the flashing relay includes at least nine serial ports, each of which includes at least one enable terminal, two input terminals, and six output terminals. The input terminals are used to receive scene signal inputs, and the output terminals are used to output control signals.
[0027] Specifically, the novel flashing relay of this embodiment provides feedback on the no-load status of the car lights through its internal no-load detection module, and can control the abnormal on / off status of the car lights by changing the square wave frequency and waveform through the output signal, thus alerting pedestrians and drivers.
[0028] In a preferred embodiment of this example, the combination switch 4 is connected between the power supply 1 and the ground wire 2, and the input terminal is connected to the circuit from the power supply 1 to the combination switch 4. The combination switch 4 controls the circuit state from the power supply 1 to the input terminal by opening and closing.
[0029] In a preferred embodiment of this invention, a hazard alarm switch 3 is further provided in the circuit path from the power supply 1 to the input terminal, and the hazard alarm switch 3 is used to identify the input terminal circuit.
[0030] Specifically, the hazard alarm switch 3 is installed in the circuit of the input terminal, which can determine whether there is an unloaded state at the input terminal and provide a prompt. When there is an unloaded state at the input terminal circuit, the hazard alarm switch 3 can simultaneously open and close the power supply circuit 1 to prevent the circuit from burning out.
[0031] In a preferred embodiment of this invention, the enable terminal is electrically connected to the power supply 1.
[0032] In a preferred embodiment of this invention, the output terminal includes at least left front, left side, left rear, right front, right side, and right rear output pins; wherein the output pins are electrically connected to the signal lights at the corresponding positions on the vehicle.
[0033] Specifically, in the aforementioned multiple implementations, the output circuits of the six turn signals of the flashing relay are set to be controlled individually. When there is only a single signal output circuit fault inside or outside the flashing relay, the danger of all turn signals failing to flash due to circuit connection problems can be avoided. In this technical solution, the other normal turn signals can still work. By sending a signal through the flashing relay, the flashing frequency of the car lights is doubled, which can still serve as a certain reminder to surrounding vehicles and pedestrians, thus ensuring traffic safety.
[0034] In a preferred embodiment of this example, one or more of the output pins are also electrically connected to the combination instrument 5 between them and the signal light circuit.
[0035] In a preferred embodiment of this invention, the instrument cluster 5 is installed in the circuits corresponding to the left and right indicator lights, and is used to provide immediate feedback on circuit faults.
[0036] Specifically, the instrument cluster unit 5 establishes an electrical connection with the left turn signal output terminal and the right turn signal output terminal of the flashing relay unit through electrical wiring. When any of the following fault conditions are detected in the left or right turn signal circuit: 1. The turn signal connector is not properly plugged in; 2. The contact resistance of the connector terminal is abnormal; 3. The turn signal bulb is malfunctioning, the instrument cluster unit 5 switches the corresponding turn signal indicator to a continuously illuminated state, thereby issuing a visual warning signal of turn signal system malfunction to the driver and prompting the driver to perform timely inspection and maintenance.
[0037] In a preferred embodiment of this invention, the flashing relay includes a buzzer and a flashing frequency adjustment module. When the flashing relay is unloaded, the buzzer and the flashing frequency adjustment module are energized.
[0038] Specifically, this implementation achieves a fault detection and warning function. When an open circuit fault is detected in any turn signal circuit, the system automatically increases the flashing frequency of the turn indicator light on the corresponding side of the instrument cluster 5 to several times the standard frequency. At the same time, the operating frequency of the acoustic alarm device of the built-in buzzer in the flash relay is synchronously increased, forming a dual visual and auditory warning signal to ensure that the driver can detect it in time and take maintenance measures.
[0039] Circuit fault detection mechanism: The system can monitor the electrical continuity of each output circuit of the relay in real time. When any of the following abnormal states are detected: 1. Output circuit open circuit; 2. Connector terminal pin retraction; 3. Contact resistance exceeding the standard, the system will immediately trigger the above warning mechanism to facilitate the driver to quickly locate the fault point.
[0040] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A new flash relay for new energy commercial vehicles, characterized in that, include: A power source, which provides positive power; Ground wire, which provides a ground level; Hazard alarm switches; combination switches; Combination instrument; The flashing relay body is used to provide the level signal for controlling the hazard alarm switch, combination switch and combination instrument.
2. The novel flashing relay for new energy commercial vehicles as described in claim 1, characterized in that, The flashing relay includes at least 9 serial ports, each including at least 1 enable terminal, 2 input terminals and 6 output terminals. The input terminals are used to receive scene signal inputs, and the output terminals are used to output control signals.
3. A novel flashing relay for new energy commercial vehicles as described in claim 2, characterized in that, The combination switch is connected between the power supply and the ground wire, and the input terminal is connected to the circuit from the power supply to the combination switch. The combination switch controls the circuit state from the power supply to the input terminal by opening and closing.
4. A novel flashing relay for new energy commercial vehicles as described in claim 3, characterized in that, A hazard alarm switch is also provided in the power supply to the input circuit path, and the hazard alarm switch is used to identify the input circuit.
5. A novel flashing relay for new energy commercial vehicles as described in claim 2, characterized in that, The enable terminal is electrically connected to the power supply.
6. A novel flashing relay for new energy commercial vehicles as described in claim 2, characterized in that, The output terminal includes at least the front left, left side, rear left, front right, right side, and rear right output pins; wherein the output pins are electrically connected to the signal lights at the corresponding positions on the vehicle.
7. A novel flashing relay for new energy commercial vehicles as described in claim 6, characterized in that, One or more of the output pins are also electrically connected to the combined instrument between them and the indicator light circuit.
8. A novel flashing relay for new energy commercial vehicles as described in claim 7, characterized in that, The instrument cluster is located in the circuits corresponding to the indicator lights on the left and right sides, and is used to provide immediate feedback on circuit faults.
9. A novel flashing relay for new energy commercial vehicles as described in claim 8, characterized in that, The flashing relay includes a buzzer and a flashing frequency adjustment module. When the flashing relay is unloaded, the buzzer and the flashing frequency adjustment module are powered on.