Dynamic water lamp and automobile lamp

Abstract

The present invention relates to the field of light control. The present invention provides a dynamic flowing light and an automobile light, comprising a controller, a voltage output circuit and a drive circuit. The controller controls the voltage output circuit to output a voltage. The voltage output circuit comprises a power supply circuit and a switch circuit connected to the power supply circuit. The switch circuits are divided into at least two groups, and each group of the switch circuits is correspondingly configured with a group of drive circuits. The controller controls the two groups of switch circuits to be turned on sequentially. The drive circuit is connected to an LED light group, and the drive circuit sequentially lights up the LED light group according to the output voltage of the voltage output circuit. The present invention provides a dynamic flowing light and an automobile light, which solves the problem of high cost of dynamic flowing lights developed based on chips in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of lamp control, and in particular to a dynamic water flow lamp and an automobile lamp. Background Art

[0002] In the past two years, OEMs have increasingly demanded more functional features from automotive lighting. While ensuring traditional lighting or signaling functions, they also want the lights to offer dazzling effects to attract consumers and increase the car's selling point. Currently, the automotive chip market has developed chips specifically tailored to the dynamic flow of light requirements in automotive lighting, offering certain advantages. However, chip-based designs for dynamic flow lights in automobiles are relatively expensive, considering the cost of circuit components alone. Furthermore, chip-based dynamic flow lights rely heavily on software control, requiring both technical and human investment, increasing R&D costs. Furthermore, these chip-based dynamic flow lights require numerous cables to connect the chip to the LED light assembly, power supply, and driver circuit. Summary of the Invention

[0003] In order to solve the problem of high cost of dynamic flowing water lamps based on chip design in the prior art, the present invention proposes a dynamic flowing water lamp. A dynamic flowing water lamp manufactured using the dynamic flowing water lamp can save costs.

[0004] The technical solution of the present invention:

[0005] A dynamic water-flowing lamp, comprising:

[0006] A controller, wherein the controller controls the voltage output circuit to output a voltage;

[0007] A voltage output circuit, the voltage output circuit comprising a power supply circuit and a switch circuit connected to the power supply circuit, the switch circuits being provided in at least two groups, each group of the switch circuits correspondingly configured with a drive circuit, and the controller controlling the two groups of the switch circuits to be turned on sequentially;

[0008] A driving circuit is connected to the LED light group, and the driving circuit lights up the LED light group in sequence according to the output voltage of the voltage output circuit.

[0009] Furthermore, the two groups of switch circuits are respectively a first switch circuit and a second switch circuit, the first switch circuit includes a first switch element Q1 and a resistor R3, the first pin of the first switch element Q1 is connected to the controller, the second pin of the first switch element Q1 is connected to the power supply circuit, the second and third pins of the first switch element Q1 are respectively connected to the two ends of the resistor R3, and the third pin of the first switch element Q1 is grounded;

[0010] The second switching circuit includes a second switching element Q2 and a resistor R4, the first pin of the second switching element Q2 is connected to the controller, the second pin and the third pin of the second switching element Q2 are respectively connected to the two ends of the resistor R4, the third pin of the second switching element Q3 is grounded, and at the same time, the resistor R4 is connected in series between the resistor R3 and the ground.

[0011] Furthermore, the two groups of drive circuits are respectively a first drive circuit and a second drive circuit, the first drive circuit includes a Zener diode D1 and a third switch element Q3, the cathode of the Zener diode D1 is connected to the second pin of the first switch element Q1, the anode of the Zener diode D1 is connected to the first pin of the third switch element Q3, the second pin of the third switch element Q3 is connected to the LED lamp group, and the third pin of the third switch element Q3 is grounded;

[0012] The second driving circuit includes a Zener diode D2 and a fourth switching element Q4, the cathode of the Zener diode D2 is connected to the cathode of the Zener diode D1, the anode of the Zener diode D2 is connected to the first pin of the fourth switching element Q4, the second pin of the fourth switching element Q4 is connected to the LED light group, and the third pin of the fourth switching element Q4 is grounded.

[0013] Furthermore, the first switching element Q1 , the second switching element Q2 , the third switching element Q3 and the fourth switching element Q4 are all MOS tubes, the first pin is a gate, the second pin is a drain, and the third pin is a source.

[0014] Furthermore, the power supply circuit includes a power supply and at least one resistor R1, the power supply and at least one resistor R1 are connected in series, the power supply is connected to a first end of the resistor R1, and a second end of the resistor R1 is connected to the switch circuit.

[0015] Furthermore, the power supply adopts DC-DC.

[0016] Furthermore, there are two LED lamp groups, which are respectively connected to two groups of driving circuits, and the LED lamp groups include at least one LED lamp bead.

[0017] Furthermore, it also includes a second power supply, and the positive poles of the two groups of LED lamp groups are respectively connected to the second power supply, wherein the negative pole of one group of LED lamp groups is connected to the second pin of the third switching element Q3, and the negative pole of the other group of LED lamp groups is connected to the second pin of the fourth switching element Q4.

[0018] In order to solve the problem of high cost of dynamic running lights based on chip design in the prior art, the present invention proposes an automobile light. The application of the dynamic running lights can save costs.

[0019] An automobile lamp comprises the above-mentioned dynamic flowing water lamp.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention uses a controller output signal to control the voltage output circuit to output different voltages. The driving circuit is controlled to work in a continuous manner according to the voltage value, thereby controlling the LED light group to achieve a dynamic continuous flow effect. The present invention relies less on software program control, solving the problem of relying on chips and software modules to produce continuous flow lights in the prior art, thereby saving costs.

[0022] 2. The connection between the driving circuit and the voltage output circuit of the present invention adopts two connecting wires, which solves the problem in the prior art that the dynamic water flow lamp based on chip design needs to use more connecting wires to connect the chip with the LED lamp group, power supply and driving circuit. The technical solution provided by the present invention uses fewer connecting wires, and when the circuit fails, the line is easy to sort out. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a dynamic water flow lamp provided by an embodiment of the present invention;

[0024] Figure 2 This is a circuit diagram of a dynamic flowing water lamp provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of invention protection.

[0026] As an embodiment of the present invention, the present invention provides a dynamic water lamp, such as Figure 1 As shown, the dynamic flowing water light includes a controller, a voltage output circuit and a driving circuit, wherein the controller controls the voltage output circuit to output voltages of different volts, the voltage output circuit includes a power supply circuit and a switching circuit connected to the power supply circuit, there are at least two groups of switching circuits, each group of switching circuits is correspondingly configured with a group of driving circuits, the controller controls the two groups of switching circuits to be turned on sequentially, the driving circuit is connected to the LED light group, and the driving circuit lights up the LED light group according to the output voltage sequence of the voltage output circuit.

[0027] Furthermore, if Figure 2The two switching circuits are respectively a first switching circuit and a second switching circuit. The first switching circuit includes a first switching element Q1 and a resistor R3. The first pin of the first switching element Q1 is connected to the controller, the second pin of the first switching element Q1 is connected to the power supply circuit, the second pin and the third pin of the first switching element Q1 are respectively connected to the two ends of the resistor R3, and the third pin of the first switching element Q1 is grounded.

[0028] The second switching circuit includes a second switching element Q2 and a resistor R4. The first pin of the second switching element Q2 is connected to the controller, the second pin and the third pin of the second switching element Q2 are respectively connected to the two ends of the resistor R4, and the third pin of the second switching element Q2 is grounded. At the same time, the resistor R4 is connected in series between the resistor R3 and the ground.

[0029] Since there are two switch circuits in this embodiment, the controller outputs four signals, as follows:

[0030] The controller output signal is 11, which means that the first pin of the first switch element Q1 is at a high level, and the first pin of the second switch element Q2 is at a high level;

[0031] The controller output signal is 10, which means that the first pin of the first switch element Q1 is at a high level and the first pin of the second switch element Q2 is at a low level;

[0032] The controller output signal is 01, which means that the first pin of the first switch element Q1 is at a low level and the first pin of the second switch element Q2 is at a high level;

[0033] The controller output signal is 00, which means that the first pin of the first switch element Q1 is at a low level, and the first pin of the second switch element Q2 is at a low level.

[0034] When the controller output signal is 11, the first switch element Q1 is turned on, and the resistors R3, R4 and the second switch element Q2 are bypassed. Figure 2 The voltage at point A is V A1 =0;

[0035] When the controller output signal is 10, the first switch element Q1 is turned on, and the resistors R3, R4 and the second switch element Q2 are bypassed. Figure 2 The voltage at point A is V A2 =0;

[0036] When the controller output signal is 01, the first switch element Q1 is turned off, the third switch element Q3 is turned on, and the resistor R4 is bypassed. Figure 2 The voltage at point A in

[0037] When the controller output signal is 00, the first switch element Q1 is turned off and the third switch element Q3 is turned off. Figure 2 The voltage at point A in

[0038] From the above, we can see that V A4 >V A3 .

[0039] Furthermore, if Figure 2 The two drive circuits are respectively a first drive circuit and a second drive circuit. The first drive circuit includes a Zener diode D1 and a third switch element Q3. The cathode of the Zener diode D1 is connected to the second pin of the first switch element Q1. The anode of the Zener diode D1 is connected to the first pin of the third switch element Q3. The second pin of the third switch element Q3 is connected to the LED lamp group. The third pin of the third switch element Q3 is grounded.

[0040] The second driving circuit includes a Zener diode D2 and a fourth switching element Q4, the cathode of the Zener diode D2 is connected to the cathode of the Zener diode D1, the anode of the Zener diode D2 is connected to the first pin of the fourth switching element Q4, the second pin of the fourth switching element Q4 is connected to the LED lamp group, and the third pin of the fourth switching element Q4 is grounded.

[0041] In order to achieve the sequential breakdown of the Zener diode D1 and the Zener diode D2, so that the LED light groups light up sequentially, the voltage stabilization value of the Zener diode D1 is smaller than the voltage stabilization value of the Zener diode D2. Specifically, the voltage stabilization values ​​of the Zener diode D1 and the Zener diode D2 are selected according to the output voltage of the voltage output circuit. For example, when Figure 2 The voltage at point A When the voltage regulator diode D1 is selected to have a voltage regulation value of 2.4V, Figure 2 The voltage at point A When the voltage stabilization value of the Zener diode D2 is selected to be 3.4V, of course, the voltage stabilization value of the Zener diode D1 can also be selected to be greater than the voltage stabilization value of the Zener diode D2, as long as sequential breakdown can be achieved, and there is no restriction on this.

[0042] In order to make the driving circuit work better, such as Figure 2 As shown, the first drive circuit is further configured with a resistor R5 and a resistor R6. The resistor R5 is connected in series between the anode of the Zener diode D1 and the first pin of the third switch element Q3 to limit the current and prevent the third switch element Q3 from being damaged by excessive current. One end of the resistor R6 is connected to the first pin of the third switch element Q3, and the other end of the resistor R6 is connected to the third pin of the third switch element Q3 to ensure that the third switch element Q3 is in a cut-off state when there is no signal at the first pin of the third switch element Q3.

[0043] The second drive circuit is further configured with resistors R7 and R8. Resistor R7 is connected in series between the anode of the Zener diode D2 and the first pin of the fourth switch element Q4 to limit current and prevent damage to the fourth switch element Q4 due to excessive current. One end of resistor R8 is connected to the first pin of the fourth switch element Q4, and the other end of resistor R8 is connected to the third pin of the fourth switch element Q4 to ensure that the fourth switch element Q4 is in an off state when there is no signal at the first pin.

[0044] Specifically, the first switching element Q1, the second switching element Q2, the third switching element Q3 and the fourth switching element Q4 are all MOS tubes, the first pin is the gate, the second pin is the drain, and the third pin is the source. Of course, the first switching element Q1, the second switching element Q2, the third switching element Q3 and the fourth switching element Q4 can also use transistors, and there is no specific limitation on this.

[0045] Furthermore, if Figure 2 The power supply circuit includes a power supply and at least one resistor R1. The power supply and the at least one resistor R1 are connected in series. The power supply is connected to a first end of the resistor R1, and a second end of the resistor R1 is connected to a switching circuit. The power supply in the power supply circuit of this embodiment adopts DC-DC. Of course, the power supply can also adopt other types of DC power supplies, which is not limited to this.

[0046] Furthermore, there are two LED lamp groups and they are respectively connected to two sets of driving circuits. The two sets of LED lamp beads are respectively a first LED lamp group and a second LED lamp group. The two sets of LED lamp groups each include at least one LED lamp bead. Figure 2 As shown, the two LED lamp groups in this embodiment include three LED lamp beads respectively, and the three LED lamp beads are connected in series in sequence. Of course, the LED lamp group can also include more LED lamp beads, and these lamp beads can also be connected in parallel, which is not limited.

[0047] like Figure 2 The dynamic flowing water lamp provided in this embodiment also includes a second power supply, and the positive poles of the two groups of LED lamp groups are respectively connected to the second power supply, wherein the negative pole of one group of LED lamp groups is connected to the second pin of the third switching element Q3, and the negative pole of the other group of LED lamp groups is connected to the second pin of the fourth switching element Q4.

[0048] In order to make the LED lamp group work better, this embodiment also includes resistors R9 and R10. The resistor R9 is connected in series between the second pin of the third switch element Q3 and the first LED lamp group, and the resistor R10 is connected in series between the second pin of the fourth switch element Q4 and the second LED lamp group to prevent excessive current from damaging the LED lamp group.

[0049] The working principle of this embodiment is as follows:

[0050] When the controller output signal is 11 or 10, the first switch element Q1 is turned on, and the resistor R3, the resistor R4 and the second switch element Q2 are bypassed. Figure 2 Voltage at point A V A =V A1 =V A2 =0, so the subsequent driving circuit does not work, so the first LED lamp group does not light up, and the second LED lamp group does not light up;

[0051] When the controller output signal is 01, the first switch element Q1 is turned off, the second switch element Q2 is turned on, and the resistor R4 is bypassed. Figure 2 Voltage at point A Therefore, the voltage regulator diode D1 works in the voltage regulation state, the third switch element Q3 is turned on, the voltage regulator diode D2 does not work, and the fourth switch element Q4 is turned off, so that the first LED light group is on and the second LED light group is off;

[0052] When the controller output signal is 00, the first switch element Q1 is turned off, and the second switch element Q2 is turned off. Figure 2 The voltage at point A Therefore, the voltage regulator diode D1 and the voltage regulator diode D2 both operate in a voltage regulation state, the third switch element Q3 and the fourth switch element Q4 are both turned on, so the first LED light group is on, and the second LED light group is on.

[0053] From the above, it can be seen that the LED light group can be controlled to achieve the effect of dynamic flowing lights by outputting timing signals through the controller.

[0054] Of course, if you need to control multiple groups of LED lights to achieve a dynamic flowing light effect, you only need to configure a corresponding number of switch circuits and drive circuits. The principle is the same as the above-mentioned dynamic flowing light, so I will not introduce it in detail.

[0055] This embodiment also provides an automobile lamp, which uses the above-mentioned dynamic water flow lamp, with the following differences:

[0056] The LED light group and driving circuit are installed on the LED light board, the power output circuit and controller are installed on the car driver board, and the LED light board and the car driver board are connected through two connecting wires, wherein one end of the first connecting wire is connected to the cathode of the voltage-stabilizing diode D1, the other end of the first connecting wire is connected to the second pin of the first switching element Q1, one end of the second connecting wire is connected to the third pin of the third switching element Q3, and the other end of the second connecting wire is grounded.

[0057] In summary, the dynamic water flow lamp and automobile lamp provided in this embodiment can not only reduce the production cost, but also save the use of connecting wires. When a circuit fault occurs, it is easy to sort out the circuit and convenient to check the fault.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic water lamp, characterized in that: include: A controller, wherein the controller controls the voltage output circuit to output a voltage; A voltage output circuit, the voltage output circuit comprising a power supply circuit and a switch circuit connected to the power supply circuit, the switch circuits being provided in at least two groups, each group of the switch circuits correspondingly configured with a drive circuit, and the controller controlling the two groups of the switch circuits to be turned on sequentially; A drive circuit, the drive circuit is connected to the LED light group, the drive circuit lights up the LED light group according to the output voltage of the voltage output circuit sequence; The two groups of switch circuits are respectively a first switch circuit and a second switch circuit, the first switch circuit includes a first switch element Q1 and a resistor R3, the second pin of the first switch element Q1 is connected to one end of the resistor R3, and the third pin of the first switch element Q1 is grounded; the first pin of the first switch element Q1 is connected to the controller; The second switching circuit includes a second switching element Q2 and a resistor R4, the first pin of the second switching element Q2 is connected to the controller, the second pin and the third pin of the second switching element Q2 are respectively connected to the two ends of the resistor R4, the third pin of the second switching element Q2 is grounded, and the resistor R4 is connected in series between the resistor R3 and the ground; The two groups of drive circuits are respectively a first drive circuit and a second drive circuit. The first drive circuit includes a Zener diode D1 and a third switch element Q3. The cathode of the Zener diode D1 is connected to the second pin of the first switch element Q1. The anode of the Zener diode D1 is connected to the first pin of the third switch element Q3. The second pin of the third switch element Q3 is connected to the LED lamp group. The third pin of the third switch element Q3 is grounded. The second driving circuit includes a Zener diode D2 and a fourth switching element Q4, wherein the cathode of the Zener diode D2 is connected to the cathode of the Zener diode D1, the anode of the Zener diode D2 is connected to the first pin of the fourth switching element Q4, the second pin of the fourth switching element Q4 is connected to the LED light group, and the third pin of the fourth switching element Q4 is grounded; The first switch element Q1, the second switch element Q2, the third switch element Q3 and the fourth switch element Q4 are all MOS tubes, the first pin is the gate, the second pin is the drain, and the third pin is the source; The power supply circuit includes a power supply and at least one resistor R1, the power supply and at least one resistor R1 are connected in series, the power supply is connected to a first end of the resistor R1, and a second end of the resistor R1 is connected to the switch circuit; The power supply adopts DC-DC; There are two LED light groups, which are respectively connected to two groups of driving circuits. The LED light groups include at least one LED lamp bead.

2. The dynamic water lamp according to claim 1, characterized in that: It also includes a second power supply, and the positive poles of the two groups of LED lamp groups are respectively connected to the second power supply, wherein the negative pole of one group of LED lamp groups is connected to the second pin of the third switching element Q3, and the negative pole of the other group of LED lamp groups is connected to the second pin of the fourth switching element Q4.

3. An automobile lamp, characterized in that: The invention comprises the dynamic flowing water lamp as described in any one of claims 1-2.

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