阅读说明：本技术 车灯照明双路控制电子装置 (Double-circuit control electronic device for car lamp illumination ) 是由 王小龙 李万丰 饶汉鑫 陆群 于 2020-12-24 设计创作，主要内容包括：本申请涉及一种车灯照明双路控制电子装置,包括电源端H、电源端L、电源端G、直流输出装置、第一类型灯、第二类型灯、第一类型灯控制电路、第二类型灯控制电路和电流传输电路；直流输出装置连接电源端H、电源端L、电源端G、第一类型灯和第二类型灯,第一类型灯控制电路通过电流传输电路连接电源端H、电源端L和电源端G,第一类型灯控制电路连接第一类型灯,第二类型灯控制电路连接第一类型灯控制电路和第二类型灯；根据电源端H、电源端G和电源端L之间接入电压的状态改变第一类型灯控制电路和第二类型灯控制电路的通断,实现近光灯和近光灯的双路切换控制,结构简单且响应速度快,降低了控制成本。(The application relates to a car lamp illumination double-circuit control electronic device, which comprises a power supply end H, a power supply end L, a power supply end G, a direct current output device, a first type lamp, a second type lamp, a first type lamp control circuit, a second type lamp control circuit and a current transmission circuit; the direct current output device is connected with a power supply end H, a power supply end L, a power supply end G, a first-type lamp and a second-type lamp, the first-type lamp control circuit is connected with the power supply end H, the power supply end L and the power supply end G through a current transmission circuit, the first-type lamp control circuit is connected with the first-type lamp, and the second-type lamp control circuit is connected with the first-type lamp control circuit and the second-type lamp; the on-off of the first type lamp control circuit and the second type lamp control circuit is changed according to the state of the access voltage among the power supply end H, the power supply end G and the power supply end L, the double-path switching control of the dipped headlight and the dipped headlight is achieved, the structure is simple, the response speed is high, and the control cost is reduced.)

1. A car light illumination double-circuit control electronic device is characterized by comprising a power supply end H, a power supply end L, a power supply end G, a direct current output device, a first type lamp, a second type lamp, a first type lamp control circuit, a second type lamp control circuit and a current transmission circuit; the direct current output device is connected with the power supply end H, the power supply end L, the power supply end G, the first-type lamp and the second-type lamp, the first-type lamp control circuit is connected with the power supply end H, the power supply end L and the power supply end G through the current transmission circuit, the first-type lamp control circuit is connected with the first-type lamp, and the second-type lamp control circuit is connected with the first-type lamp control circuit and the second-type lamp;

the direct current output device is connected with external current and outputs direct current; the first type lamp control circuit is switched on when the power supply end H and the power supply end G are connected with voltage, the second type lamp control circuit is controlled to be switched off, and the first type lamp is lightened; the first type lamp control circuit is turned off when the power supply end L and the power supply end G are connected with voltage, the second type lamp control circuit is controlled to be turned on, and the second type lamp is lightened; wherein, first type lamp is far-reaching headlamp/dipped headlight, second type lamp is dipped headlight/far-reaching headlamp, the far-reaching headlamp with the dipped headlight is the LED lamp.

2. The vehicular lamp illumination two-way control electronic device according to claim 1, wherein a first input terminal of the dc output device is connected to the power supply terminal H, a second input terminal of the dc output device is connected to the power supply terminal G, a third input terminal of the dc output device is connected to the power supply terminal L, a first output terminal of the dc output device is connected to the first-type lamp and the second-type lamp, and a second output terminal of the dc output device is connected to the first-type lamp control circuit and the second-type lamp control circuit.

3. The electronic device for controlling both illumination and vehicular lamp according to claim 2, wherein said current transmission circuit comprises a diode D1, a diode D2, a diode D11, a diode D12 and a resistor R6, wherein an anode of said diode D1 is connected to said power terminal H, a cathode of said diode D1 is connected to said first terminal of said resistor R6, an anode of said diode D2 is connected to said power terminal G, a cathode of said diode D2 is connected to said first terminal of said resistor R6, a second terminal of said resistor R6 is connected to an anode of said diode D11 and an anode of said diode D12, a cathode of said diode D11 is connected to said power terminal L, and a cathode of said diode D12 is connected to said first-type lamp control circuit.

4. The electronic device for controlling the vehicle lamp lighting double-circuit according to claim 2, wherein the first-type lamp control circuit comprises a resistor R3, a resistor R11, a switch tube Q1 and a switch tube Q3, the resistor R3 and the resistor R11 are connected in series, a common end of the resistor R3 and the resistor R11 is connected with a control end of the switch tube Q1 and a control end of the switch tube Q3, the other end of the resistor R3 is connected with the current transmission circuit, and the other end of the resistor R11 is connected with a second output end of the dc output device; the first end of the switch tube Q1 is connected to the first type lamp, the second end of the switch tube Q1 is connected to the second output end of the dc output device, the first end of the switch tube Q3 is connected to the second type lamp control circuit, and the second end of the switch tube Q3 is connected to the second output end of the dc output device.

5. The electronic device for controlling the vehicle lamp lighting double-circuit according to claim 4, wherein the first type lamp control circuit further comprises a capacitor C4 and a clamping tube ZD3, the capacitor C4 is connected in parallel with the resistor R11, the cathode of the clamping tube ZD3 is connected to the common terminal of the resistor R3 and the resistor R11, and the anode of the clamping tube ZD3 is connected to the second output terminal of the DC output device.

6. The electronic device for controlling the lighting of a car lamp in two ways according to claim 4, wherein the switch tube Q1 and the switch tube Q3 are both MOS tubes.

7. The electronic device for controlling the lighting of a vehicular lamp by two ways according to claim 6, wherein the switching transistor Q1 and the switching transistor Q3 are both N-channel MOS transistors, and have a gate as a control terminal, a drain as a first terminal, and a source as a second terminal.

8. The electronic device for controlling the vehicle lamp lighting double-circuit according to claim 2, wherein the second-type lamp control circuit comprises a resistor R4, a resistor R12 and a switch tube Q2, the resistor R4 and the resistor R12 are connected in series, a common end of the resistor R4 is connected with the control ends of the first-type lamp control circuit and the switch tube Q2, the other end of the resistor R4 is connected with the first output end of the direct current output device, and the other end of the resistor R12 is connected with the second output end of the direct current output device; the first end of the switch tube Q2 is connected with the second type lamp, and the second end of the switch tube Q2 is connected with the second output end of the direct current output device.

9. The electronic device for controlling the vehicle lamp lighting double-circuit according to claim 8, wherein the second-type lamp control circuit further comprises a capacitor C5 and a clamping tube ZD4, the capacitor C5 is connected in parallel with the resistor R12, the cathode of the clamping tube ZD4 is connected to the common terminal of the resistor R4 and the resistor R12, and the anode of the clamping tube ZD4 is connected to the second output terminal of the dc output device.

10. The electronic device for controlling the lighting of a car lamp according to the claim 8, wherein the switching tube Q2 is a MOS tube.

Technical Field

The application relates to the technical field of vehicle illumination control, in particular to a vehicle lamp illumination double-circuit control electronic device.

Background

With the development of science and technology and the continuous progress of society, more and more families use vehicles as transportation tools, and the life convenience of people is greatly improved. The vehicle needs to switch the low beam and the high beam according to different scenes so as to drive more safely.

Traditional car light lighting circuit adopts different circuits to independently carry out dipped headlight and distance light control respectively, and control is complicated, has the shortcoming that control cost is high.

Disclosure of Invention

In view of the above, it is desirable to provide a vehicle lamp illumination dual-path control electronic device that can reduce the control cost.

A car light illumination double-circuit control electronic device comprises a power supply end H, a power supply end L, a power supply end G, a direct current output device, a first type lamp, a second type lamp, a first type lamp control circuit, a second type lamp control circuit and a current transmission circuit; the direct current output device is connected with the power supply end H, the power supply end L, the power supply end G, the first-type lamp and the second-type lamp, the first-type lamp control circuit is connected with the power supply end H, the power supply end L and the power supply end G through the current transmission circuit, the first-type lamp control circuit is connected with the first-type lamp, and the second-type lamp control circuit is connected with the first-type lamp control circuit and the second-type lamp;

the direct current output device is connected with external current and outputs direct current; the first type lamp control circuit is switched on when the power supply end H and the power supply end G are connected with voltage, the second type lamp control circuit is controlled to be switched off, and the first type lamp is lightened; the first type lamp control circuit is turned off when the power supply end L and the power supply end G are connected with voltage, the second type lamp control circuit is controlled to be turned on, and the second type lamp is lightened; the first type of lamp is a high beam/low beam lamp, the second type of lamp is a low beam/high beam lamp, and the high beam and the low beam are both LED (Light Emitting Diode) lamps.

In one embodiment, a first input terminal of the dc output device is connected to the power supply terminal H, a second input terminal of the dc output device is connected to the power supply terminal G, a third input terminal of the dc output device is connected to the power supply terminal L, a first output terminal of the dc output device is connected to the first-type lamp and the second-type lamp, and a second output terminal of the dc output device is connected to the first-type lamp control circuit and the second-type lamp control circuit.

In one embodiment, the current transmission circuit includes a diode D1, a diode D2, a diode D1, a diode D12 and a resistor R6, an anode of the diode D1 is connected to the power supply terminal H, a cathode of the diode D1 is connected to the first terminal of the resistor R6, an anode of the diode D2 is connected to the power supply terminal G, a cathode of the diode D2 is connected to the first terminal of the resistor R6, a second terminal of the resistor R6 is connected to the anode of the diode D11 and the anode of the diode D12, a cathode of the diode D11 is connected to the power supply terminal L, and a cathode of the diode D12 is connected to the first type lamp control circuit.

In one embodiment, the first-type lamp control circuit comprises a resistor R3, a resistor R1, a switching tube Q1 and a switching tube Q3, wherein the resistor R3 and the resistor R11 are connected in series, a common end of the resistor R3 and the resistor R11 is connected with a control end of the switching tube Q1 and a control end of the switching tube Q3, the other end of the resistor R3 is connected with the current transmission circuit, and the other end of the resistor R11 is connected with the second output end of the dc output device; the first end of the switch tube Q1 is connected to the first type lamp, the second end of the switch tube Q1 is connected to the second output end of the dc output device, the first end of the switch tube Q3 is connected to the second type lamp control circuit, and the second end of the switch tube Q3 is connected to the second output end of the dc output device.

In one embodiment, the first type lamp control circuit further comprises a capacitor C4 and a clamping tube ZD3, the capacitor C4 is connected in parallel with the resistor R11, the cathode of the clamping tube ZD3 is connected to the common terminal of the resistor R3 and the resistor R11, and the anode of the clamping tube ZD3 is connected to the second output end of the dc output device.

In one embodiment, the switching tube Q1 and the switching tube Q3 are both MOS tubes.

In one embodiment, the switching transistor Q1 and the switching transistor Q3 are both N-channel MOS transistors, and have a gate as a control terminal, a drain as a first terminal, and a source as a second terminal.

In one embodiment, the second-type lamp control circuit comprises a resistor R4, a resistor R12 and a switching tube Q2, the resistor R4 and the resistor R12 are connected in series, a common end of the resistor R4 is connected with the control ends of the first-type lamp control circuit and the switching tube Q2, the other end of the resistor R4 is connected with the first output end of the dc output device, and the other end of the resistor R12 is connected with the second output end of the dc output device; the first end of the switch tube Q2 is connected with the second type lamp, and the second end of the switch tube Q2 is connected with the second output end of the direct current output device.

In one embodiment, the second-type lamp control circuit further comprises a capacitor C5 and a clamping tube ZD4, the capacitor C5 is connected in parallel with the resistor R12, the cathode of the clamping tube ZD4 is connected to the common terminal of the resistor R4 and the resistor R12, and the anode of the clamping tube ZD4 is connected to the second output end of the dc output device.

In one embodiment, the switching transistor Q2 is a MOS transistor.

When the power supply end H and the power supply end G are connected with voltage, the first type lamp control circuit is conducted, the first type lamp is lightened, the second type lamp control circuit is turned off, and the second type lamp is not lightened; when the power supply end L and the power supply end G are connected with voltage, the first type lamp control circuit is turned off, the first type lamp is not lightened, the second type lamp control circuit is controlled to be turned on, and the second type lamp is lightened. The on-off of the first type lamp control circuit is changed according to the state of the access voltage among the power end H, the power end G and the power end L, and the on-off of the second type lamp control circuit is controlled by the on-off state of the first type lamp control circuit, so that the dipped headlight is not lightened when the high beam is lightened, the high beam is not lightened when the dipped headlight is lightened, the double-way switching control of the dipped headlight and the dipped headlight is realized, the structure is simple, the response speed is high, and the control cost is reduced.

Drawings

Fig. 1 is a schematic diagram of a dual-path control electronic device for lighting of a vehicle lamp in an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. The "connection" in the following embodiments is understood as "electrical connection", "communication connection", or the like if the connected circuits, modules, units, or the like have electrical signals or data transmission therebetween.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, the terminology used in this specification includes any and all combinations of the associated listed items.

In one embodiment, as shown in fig. 1, there is provided a vehicular lamp illumination two-way control electronic device including a power source terminal H, a power source terminal L, a power source terminal G, a direct-current output device U1, a first-type lamp, a second-type lamp, a first-type lamp control circuit 110, a second-type lamp control circuit 120, and a current-carrying circuit 130; the dc output device U1 is connected to a power supply terminal H, a power supply terminal L, a power supply terminal G, a first-type lamp and a second-type lamp, the first-type lamp control circuit 110 is connected to the power supply terminal H, the power supply terminal L and the power supply terminal G through the current transmission circuit 130, the first-type lamp control circuit 110 is connected to the first-type lamp, and the second-type lamp control circuit 120 is connected to the first-type lamp control circuit 110 and the second-type lamp. The direct current output device U1 is connected with external current and outputs direct current; the first-type lamp control circuit 110 is turned on when the power supply end H and the power supply end G are connected to the voltage, controls the second-type lamp control circuit 120 to be turned off, and lights the first-type lamp; the first-type lamp control circuit 110 is turned off when the power source terminal L and the power source terminal G are connected to the voltage, and controls the second-type lamp control circuit 120 to be turned on to light the second-type lamp.

The first type of lamp is a high beam/dipped headlight, the second type of lamp is a dipped headlight/high beam, and the high beam and the dipped headlight are LED lamps specifically selected. The dc output device U1 is a device that inputs ac or dc and rectifies the input ac or dc into dc, and the power supply terminal H and the power supply terminal L receive two ac or dc input voltages with respect to the power supply terminal G. The direct current output device U1 processes the accessed alternating current or direct current, and outputs direct current high voltage through a high voltage output end. When the power supply end H and the power supply end G are connected to a voltage, the first-type lamp control circuit 110 is turned on, so that a loop where the first-type lamp is located is turned on, the first-type lamp is turned on, the second-type lamp control circuit 120 is turned off, and the second-type lamp is not turned on; when the power supply terminal L and the power supply terminal G are connected to a voltage, the first-type lamp control circuit 110 is turned off, the first-type lamp is not lit, the second-type lamp control circuit 120 is turned on, and a loop in which the second-type lamp is located is turned on to light the second-type lamp. In actual use, the voltage input of the power supply end H, the power supply end L and the power supply end G can be changed according to actual requirements, so that the first-type lamp and the second-type lamp are controlled to be switched and lightened.

Above-mentioned car light illumination double-circuit control electron device, according to power end H, the break-make that the state of access voltage changes first type lamp control circuit 110 between power end G and the power end L, and by the break-make of the on-off state control second type lamp control circuit 120 of first type lamp control circuit 110, make the dipped headlight not light when the high beam lights, the high beam does not light when the dipped headlight lights, realize the double-circuit switching control of dipped headlight and dipped headlight, simple structure and response speed are fast, the control cost is reduced.

In one embodiment, as shown in FIG. 1, the first input terminal H of the DC output device U1 is connected to the power supply terminal H, the second input terminal G of the DC output device U1 is connected to the power supply terminal G, the third input terminal L of the DC output device U1 is connected to the power supply terminal L, and the first output terminal U1 of the DC output device U1 is connected to the power supply terminal L₀₊The first type of lamp and the second type of lamp are connected, in particular by means of a terminal V +. Second output terminal U of DC output device U1_0-The first-type lamp-control circuit 110 and the second-type lamp-control circuit 120 are connected.

The specific structure of the current transmitting circuit 130 is not exclusive, and in one embodiment, the current transmitting circuit 130 includes a diode D1, a diode D2, a diode D11, a diode D12 and a resistor R6, an anode of the diode D1 is connected to the power supply terminal H, a cathode of the diode D1 is connected to the first end of the resistor R6, an anode of the diode D2 is connected to the power supply terminal G, a cathode of the diode D2 is connected to the first end of the resistor R6, a second end of the resistor R6 is connected to the anode of the diode D11 and the anode of the diode D12, a cathode of the diode D11 is connected to the power supply terminal L, and a cathode of the diode D12 is connected to the first-.

It is to be understood that the structures of the first-type lamp control circuit 110 and the second-type lamp control circuit 120 are not exclusive, and in an embodiment, the first-type lamp control circuit 110 includes a resistor R3, a resistor R11, a switch tube Q1 and a switch tube Q3, the resistor R3 and the resistor R11 are connected in series, a common terminal of the resistor R3 and the resistor R11 is connected to the control terminal of the switch tube Q1 and the control terminal of the switch tube Q3, the other terminal of the resistor R3 is connected to the current transmission circuit 130, and the other terminal of the resistor R11 is connected to the second output terminal U of the dc output device U1_0-(ii) a A first end of the switch tube Q1 is connected with the first type lamp, a second end of the switch tube Q1 is connected with a second output end U of the direct current output device U1_0-The first end of the switch tube Q3 is connected to the second type lamp control circuit 120, and the second end of the switch tube Q3 is connected toSecond output terminal U of DC output device U1_0-。

Specifically, the resistor R3 is connected to the cathode of the diode D12 in the current transmitting circuit 130, and the first end of the switching tube Q1 is connected to the first type lamp through the terminal H-. The switching tube Q1 and the switching tube Q3 may be transistors or MOS tubes, in this embodiment, the switching tube Q1 and the switching tube Q3 are both N-channel MOS tubes, and have a gate as a control end, a drain as a first end, and a source as a second end.

Further, in an embodiment, the first-type lamp control circuit 110 further includes a capacitor C4 and a clamp ZD3, the capacitor C4 is connected in parallel with the resistor R11, a cathode of the clamp ZD3 is connected to a common terminal of the resistor R3 and the resistor R11, and an anode of the clamp ZD3 is connected to a second output terminal U1 of the dc output device U1_0-. The capacitor C4 is used for smoothing the signal divided by the resistors R3 and R11, and the clamp tube ZD3 plays a role of clamping voltage, and can be adjusted according to the voltage output to the first type of lamp.

In one embodiment, with continued reference to fig. 1, the second-type lamp control circuit 120 includes a resistor R4, a resistor R12, and a switch transistor Q2, the resistor R4 and the resistor R12 are connected in series, and a common terminal is connected to the first-type lamp control circuit 110 and a control terminal of the switch transistor Q2, and another terminal of the resistor R4 is connected to the first output terminal U1 of the dc output device U1₀₊The other end of the resistor R12 is connected with a second output end U of the direct current output device U1_0-(ii) a The first end of the switch tube Q2 is connected with the second type lamp, and the second end of the switch tube Q2 is connected with the second output end U of the DC output device U1_0-。

Specifically, the common terminal of the resistor R4 and the resistor R12 is connected to the first terminal of the switching tube Q3 in the first-type lamp control circuit 110, and the first terminal of the switching tube Q2 is connected to the second-type lamp through the terminal L-. The switch Q2 may also be a transistor or a MOS transistor, in this embodiment, the switch Q2 is an N-channel MOS transistor, and has a gate as a control terminal, a drain as a first terminal, and a source as a second terminal.

Further, in one embodiment, the second-type lamp control circuit 120 further includes a capacitor C5 and a clamp ZD4, the capacitor C5 is connected in parallel with the resistor R12, and the cathode of the clamp ZD4 is connected with the resistor R4 and the resistorThe common terminal of R12 and the anode of the clamping tube ZD4 are connected with the second output terminal U of the direct current output device U1_0-. The capacitor C5 is used for smoothing the signal divided by the resistors R4 and R12, and the clamp tube ZD4 plays a role of clamping voltage, and can be adjusted according to the voltage output to the second type lamp.

In order to better understand the above-mentioned dual-control electronic device for vehicle lamp illumination, the following detailed explanation will take the first type of lamp as a high beam LED lamp and the second type of lamp as a low beam LED lamp.

The application provides a low-cost high-reliability non-polar two-way control electronic device for LED car lamp illumination, which is structurally shown in fig. 1, wherein a direct current output device U1 is a device for rectifying input alternating current or direct current into direct current, a power supply end H and a power supply end L are two types of alternating current or direct current input voltage relative to a power supply end G, and a port Uo + and a port Uo-of a direct current output device U1 are high-voltage end LED drive output. D1, D2, D11 and D12 are diodes; r6, R3, R11, R4 and R12 are resistors, and specific resistance values can be adjusted according to circuit requirements; c4 and C5 are capacitors and play a role in smoothing and filtering signals after R3, R11, R4 and R12 are divided; ZD3, ZD4 act as clamping voltages and can be adjusted according to the voltage level output to the LED lamp; the switch tube Q1 and the switch tube Q2 respectively control the output of two paths of LEDs (H-and L-) to be on and off, and V + is connected with the anodes of the two LED lamps.

When there is voltage between power supply terminal H and power supply terminal G and power supply terminal L is no voltage, the input voltage passes through diode D1 or diode D2, resistor R6, diode D12, and resistor R3, and then voltage is generated across resistor R11, so that both switch Q1 and switch Q3 are turned on, and thus the high beam LED lamp between terminal V + and terminal H-is turned on, switch Q3 is turned on, and the voltage across resistor R12 is low, which causes switch Q2 to be turned off, and the low beam LED lamp between terminal V + and terminal L-is turned off.

On the contrary, when there is voltage between the power source terminal L and the power source terminal G and the power source terminal H has no voltage, the diode D12 is turned off, and there is no voltage signal at both ends of the resistor R11, so that the switch Q1 is turned off, the high beam LED lamp is not turned on, and the switch Q3 is also turned off, that is, a voltage signal is generated at both ends of the resistor R12, so that the switch Q2 is turned on, and the voltage output by the dc output device U1 is applied to the low beam LED lamp, and the low beam LED lamp is turned on.

The non-polar two-way control electronic device for the LED car lamp illumination comprises a circuit consisting of a diode D2, a diode D11, a diode D12 and a resistor R6 and used for connecting alternating current or two-way input voltage, and the circuit consisting of a switching tube Q1, a switching tube Q2, a switching tube Q3, a resistor R3, a resistor R4, a resistor R11, a resistor R12 and the like and used for controlling the switching of far and near light output, wherein the values of the devices can be adjusted according to use conditions. The electronic device has the advantages of low cost, small volume, high response speed and high reliability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.