TWI760921B - Led car lights with bi-directional charging and discharging functions that replace traditional resistive dummy loads - Google Patents

Abstract

This invention is related to LED car lights with bi-directional charging and discharging functions that replace traditional resistive dummy loads, which mainly consists of a control module electrically connected to the vehicle computer [BCM], the control module has an LED control circuit and a charging control circuit, the charging control circuit has a signal mixing circuit, a charging IC, a battery feedback control circuit and a battery charging circuit, and the signal mixing circuit receives the signal of the vehicle computer and the discharge signal of the vehicle battery at the same time so that the signal mixing circuit is electrically connected to the charging IC and the battery feedback control circuit, and the charging IC is electrically connected to the battery charging circuit, so that the battery charging circuit transmits the charging signal to the battery feedback control circuit and the vehicle battery respectively, and the control module is also electrically connected to the LED light module. Accordingly, the charge/discharge feature makes it possible to replace the traditional resistive dummy load to not only avoid the overheating problem of the overall lamp, but also to improve product stability, and can recycle part of the power back to the vehicle battery at the same time. Additionally, LED lights can be used to improve luminous efficiency, which has the advantages of energy saving, carbon reduction and increased power usage.

Description

LED lights with bidirectional charging and discharging function to replace traditional resistive dummy loads

The present invention relates to an LED vehicle lamp with bidirectional charging and discharging function that replaces the traditional resistance dummy load, in particular to an LED vehicle lamp that can not only avoid the problem of excessive heat generation of the whole lamp, but also can improve the product stability, and can recover part of the power at the same time. It can be recharged to the vehicle battery, and the LED light can be used to improve the luminous efficiency, which can achieve the advantages of energy saving, carbon reduction and power utilization rate improvement.

Generally speaking, various types of vehicles are equipped with various lamps according to different positions, so as to use the light sources of different chromaticity and brightness emitted by lamps in different positions under different conditions, which can be used to remind other drivers or passers-by. Pay attention to the location of oncoming vehicles or the driving direction, etc., and also provide drivers with the effect of illuminating road conditions to ensure driving safety when driving in dim, unclear places or at night.

The early vehicle lamps all used traditional vehicle light bulbs as the light source, but with the advent of LED research and development, because the LED consumes less electricity and consumes less power, it can effectively reduce the use of electrical energy resources. It has the advantages of small size, long life, fast response rate, high luminous efficiency, good shock resistance, etc., making it widely accepted and used by all walks of life.

Among them, when the vehicle lamp wants to replace the traditional vehicle light bulb with LED light bulb, a dummy load circuit must be used to replace the part with insufficient power of the traditional vehicle light bulb with a dummy load; please refer to the circuit diagram of the existing resistive dummy load circuit in Figure 3. As shown, the resistive dummy load circuit (5) is mainly connected to the vehicle computer [BCM] (51) and is electrically connected with an LED control circuit (52), and the LED control circuit (52) is electrically connected with LED lamp modules respectively. A group (53) and a resistive dummy load (54) are provided, so that when the vehicle computer (51) controls the LED control circuit (52) to act, the LED control circuit (52) will drive the LED lamp module (53) to perform The LED control circuit (52) also controls the resistive dummy load (54) to act, so as to replace the insufficient power of the traditional vehicle light bulb with the resistive dummy load (54).

Of course, although the above-mentioned dummy load circuit can use a resistive dummy load to achieve the expected effect of replacing the part of the traditional vehicle bulb with insufficient power, it is also found in its actual operation and use that the resistive dummy load is used to replace the traditional vehicle bulb with insufficient power. When there is a part of the resistance, the false load of the resistor is prone to thermal effect, causing the overall vehicle lighting to have problems of overheating and overheating, which not only affects its use, but also seriously affects its service life. There is still room for improvement in structural design.

The reason is, in view of this, the inventor has been adhering to the rich design, development and actual production experience in the related industry for many years, and then researched and improved it to provide a bidirectional charge-discharge function LED lamp that replaces the traditional resistance dummy load, in order to achieve better practicality. The purpose of value.

The main purpose of the present invention is to provide an LED vehicle lamp with bidirectional charging and discharging function that replaces the traditional resistive dummy load. The problem of excessive heat generation is generated, and the stability of the product can be improved, and part of the power can be recovered and recharged to the vehicle battery at the same time. In addition, the LED light can be used to improve the luminous efficiency, so as to achieve the advantages of energy saving, carbon reduction and power utilization improvement. Those that have more practical efficacy characteristics in their overall implementation and use.

The main purpose and effect of the present invention to replace the traditional resistance dummy load with bidirectional charging and discharging function LED vehicle lamp is achieved by the following specific technical means: it is mainly because the vehicle computer (BCM) is electrically connected with a control module, which controls the The module is built with an LED control circuit and a charging control circuit, so that the charging control circuit is electrically connected to the vehicle battery, and an LED light module is electrically connected to the control module at the same time; wherein: the charging control circuit is provided with There are signal mixing circuit, charging IC, battery feedback control circuit and battery charging circuit, wherein the signal mixing circuit receives the signal of the vehicle computer and the discharge signal of the vehicle battery at the same time, so that the signal mixing circuit and the charging IC It is electrically connected with the battery feedback control circuit, the battery feedback control circuit simultaneously receives the charging signal of the vehicle battery, and the battery charging circuit is electrically connected to the charging IC, so that the battery charging circuit is respectively the battery feedback control circuit And the vehicle battery transmits the charging signal.

1: Vehicle computer

2: Control module

21: Charging control circuit

211: Signal mixed circuit

212: Charging IC

213: Battery feedback control circuit

214: Battery charging circuit

3: Vehicle battery

4: LED light module

5: Resistive dummy load circuit

51: Vehicle Computer

52: LED control circuit

53: LED light module

54: Resistor dummy load

Figure 1: Schematic diagram of the overall circuit of the present invention

The second figure: the circuit schematic diagram of the charging control circuit of the present invention

Figure 3: The circuit diagram of the existing resistive dummy load circuit

In order to have a more complete and clear disclosure of the technical content, the purpose of the invention and the effect achieved by the present invention, it is described in detail below, and please refer to the disclosed drawings and drawing numbers: First, please refer to The first diagram is a schematic diagram of the overall circuit of the present invention and the second diagram is a schematic circuit diagram of the charging control circuit of the present invention. The control module (2) has a built-in LED control circuit (not shown in the figure) and a charging control circuit (21), so that the charging control circuit (21) is electrically connected with the vehicle battery (3), and is connected to the control module (2) The LED lamp module (4) is also electrically connected at the same time; wherein: the charging control circuit (21) is provided with a signal mixing circuit (211), a charging IC (212), and a battery feedback control circuit (213) ) and the battery charging circuit (214), in which the information The signal hybrid circuit (211) simultaneously receives the signal of the vehicle computer (1) and the discharge signal of the vehicle battery (3), so that the signal hybrid circuit (211) is connected with the charging IC (212) and the battery feedback control circuit (213) Electrically connected, the battery feedback control circuit (213) simultaneously receives the charging signal of the vehicle battery (3), and the charging IC (212) is electrically connected with a battery charging circuit (214), so that the battery charging circuit (214) is electrically connected ) respectively transmit the charging signal to the battery feedback control circuit (213) and the vehicle battery (3).

In this way, in the operation and use of the present invention, the vehicle computer (1) controls the operation of the control module (2), and the LED control circuit of the control module (2) outputs a constant current to the LED lamp module (4), the LED module (4) has been illuminated, and at the same time, the control module (2) receives the control signal of the vehicle computer (1) to capture its small signal, which is then processed by the charging control circuit (21). After the signal mixing circuit (211) is analyzed, it is output to the battery charging circuit (214) for processing as a control signal source end, and the battery charging circuit (214) is charged with a constant current output by utilizing the characteristics of the vehicle battery (4). Feedback to the battery feedback control circuit (213), in order to achieve the charging effect, the battery charging circuit (214) will compare its control signal with the output terminal feedback signal and then perform signal amplification processing, and then use the amplified The signal is used to control the current charged by the battery charging circuit (214) at this time. Since the power source of the control module (2) is the vehicle battery (4), the non-ideal characteristics of each component are used to Part of the electric power is recharged to the vehicle battery (4), so that the vehicle battery (4) will not be overcharged or overdischarged.

From the above, it can be seen from the description of the use and implementation of the present invention that, compared with the prior art means, the present invention mainly utilizes the charging and discharging characteristics of the vehicle battery to make DEK replaces the traditional resistive dummy load, which can not only avoid the problem of excessive heating of the whole lamp, but also improve the stability of the product, and can recycle part of the power and recharge the vehicle battery at the same time. In addition, LED lights can be used to enhance the light emission Efficiency, to achieve the advantages of energy saving, carbon reduction and increased power utilization, and more practical performance characteristics in its overall implementation and use.

However, the foregoing embodiments or drawings do not limit the product structure or usage of the present invention, and any appropriate changes or modifications made by those with ordinary knowledge in the technical field should be regarded as not departing from the scope of the present invention.

To sum up, the embodiment of the present invention can indeed achieve the expected use effect, and the specific structure disclosed is not only not seen in similar products, but also has not been disclosed before the application, which fully complies with the provisions of the patent law In accordance with the requirements, I would like to file an application for an invention patent in accordance with the law, and I sincerely request that it be reviewed and granted the patent.

1: Vehicle computer

21: Charging control circuit

211: Signal mixed circuit

212: Charging IC

213: Battery feedback control circuit

214: Battery charging circuit

3: Vehicle battery

Claims (1)

An LED vehicle lamp with bidirectional charging and discharging function that replaces the traditional resistance dummy load, which is mainly connected to a vehicle computer (BCM) and is electrically connected with a control module. The charging control circuit is electrically connected with the vehicle battery, and the control module is also electrically connected with an LED light module; wherein: the charging control circuit is provided with a signal mixing circuit, a charging IC, a battery feedback control circuit and a battery A charging circuit, wherein the signal mixing circuit receives the signal of the vehicle computer and the discharging signal of the vehicle battery at the same time, so that the signal mixing circuit is electrically connected with the charging IC and the battery feedback control circuit, and the battery feedback control circuit simultaneously receives the charging circuit. For the charging signal of the vehicle battery, the charging IC is electrically connected with the battery charging circuit, so that the battery charging circuit respectively feeds back the control circuit to the battery and transmits the charging signal to the vehicle battery.

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