CN219305072U

CN219305072U - Automobile LED bulb driver and LED lamp

Info

Publication number: CN219305072U
Application number: CN202223360517.0U
Authority: CN
Inventors: 张照珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-07-04
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses an automobile LED bulb driver and an LED lamp, wherein the driver comprises a power port, a direct current converter and an output port which are sequentially connected, and further comprises a controller which is connected with the power port through a power supply circuit, wherein the controller is connected with the input port of the direct current converter through a current acquisition circuit and/or a voltage acquisition circuit, and an information display circuit is connected to the controller. The technology can provide a hardware basis for realizing information such as current, voltage and the like, and is convenient for observation.

Description

Automobile LED bulb driver and LED lamp

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to an automobile LED bulb driver and an LED lamp.

Background

The LED automotive lights are suitable for a variety of lighting applications for automotive electronics including high beam lights, low beam lights, fog lights, tail lights, brake lights, turn signal lights, daytime running lights, pedal lights, instrumentation lights, license plate lights, door lights, interior lights, broadcasters, navigation, entertainment systems, backlights, and indicator lights, among others. The high beam lamp and the low beam lamp are also called as big lamps, and taking big lamps as examples, the existing automobile LED lamp driving can only realize LED bulb driving, can not display information such as current and voltage, and is inconvenient to observe.

Disclosure of Invention

The utility model aims to overcome the defect that the existing automobile LED driving only realizes bulb driving and cannot display information such as current and voltage, and provides an automobile LED bulb driver and an LED lamp.

The aim of the utility model is achieved by the following technical scheme:

the utility model discloses an automobile LED bulb driver which comprises a power port, a direct current converter and an output port which are sequentially connected, and further comprises a controller connected with the power port through a power supply circuit, wherein the controller is connected with an input port of the direct current converter through a current acquisition circuit and/or a voltage acquisition circuit, and an information display circuit is connected to the controller.

In one possible design, the information display circuit includes a display unit and a driving circuit connected between the display unit and a controller for driving the display unit to operate.

In one possible design, the display unit is one of a nixie tube display screen, a liquid crystal display screen and a touch screen.

In one possible design, the display unit is a nixie tube display screen, and the controller is further connected with a control component for switching the display content of the display unit.

In one possible design, the control component is one of a switch button and a touch screen.

In one possible design, an anti-reverse circuit is connected between the power port and the dc converter.

In one possible design, the output end of the anti-reverse connection circuit is connected with a filter circuit.

In one possible design, a temperature acquisition circuit for acquiring the bulb temperature is also connected to the controller.

A second aspect of the utility model provides an automotive LED bulb comprising an automotive LED bulb driver as described in the first aspect and any one of its possibilities and an LED bulb connected to the output port.

The utility model has the following advantages:

the scheme is characterized in that a current acquisition circuit and/or a voltage acquisition circuit, a controller and an information display circuit are additionally arranged on the basis of the circuit structure of the existing automobile LED bulb driver, so that a hardware basis is provided for realizing information such as current, voltage and the like, and observation is facilitated.

Drawings

FIG. 1 is a schematic diagram of an automotive LED bulb driver of the present utility model;

FIG. 2 is a circuit diagram of a portion of an automotive LED bulb driver according to the present utility model;

fig. 3 is another partial circuit diagram of the automotive LED bulb driver of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the first aspect of the present utility model discloses an automotive LED bulb driver, which comprises a power supply port 1, a dc converter 2, an output port 3, a power supply circuit 9, a controller 7, a current acquisition circuit 5, a voltage acquisition circuit 8 and an information display circuit. The power port 1, the direct current converter 2 and the output port 3 are sequentially connected; the power supply circuit 9 is connected between the power port 1 and the controller 7, and realizes power supply of the controller after voltage reduction of the power port; the input end of the current acquisition circuit 5 and/or the voltage acquisition circuit 8 is connected to the input port of the direct current converter 2, and the output end is connected with the controller; the signal input end of the information display circuit is connected to the controller, and content display is realized according to the signal instruction of the controller. By adopting the circuit, a hardware basis can be provided for realizing information such as current, voltage and the like, and direct observation is convenient. The direct current converter 2 is a dc to dc power converter.

Specifically, the information display circuit includes a display unit 12 and a driving circuit 11 connected between the display unit 12 and the controller for driving the display unit to operate. The display unit can be realized in various ways, such as a nixie tube display screen, a liquid crystal display screen or a touch screen. In order to save cost, the display unit is preferably a nixie tube display screen, and in order to facilitate the switching of the display content of the digital display screen, a control component 10 for switching the display content of the display unit is also connected to the controller. There are various implementations of the control unit, such as a switch key, a touch screen, a touch sensing circuit.

In order to realize the reverse connection protection of the automobile LED bulb driver, a reverse connection prevention circuit 4 is connected between the power port and the direct current converter. The output end of the anti-reverse connection circuit is connected with a filter circuit 6.

In order to realize the display of the bulb temperature, the controller is also connected with a temperature acquisition circuit for acquiring the bulb temperature.

For the sake of understanding the present solution, a specific embodiment will be exemplified by taking the control component as a touch sensing circuit and the display unit as a nixie tube display screen.

As shown in fig. 2 and 3, the output port 3 is welded on a bonding pad of the lamp holder, and the controller is realized by adopting a chip SC8F6770 and peripheral circuits thereof; the driving circuit 11 is realized by adopting a chip TM1637 and a peripheral circuit thereof; the nixie tube display screen adopts a 0.2 inch 6 bit nixie tube display screen; the temperature of the electric bulb is fed back by a feedback wire, one end of the feedback wire is connected with an ADJ pin of the output port 3, and the other end of the feedback wire is an ADC; the temperature acquisition circuit comprises a diode D5 in the body 2 and a resistor R9 in fig. 3, wherein one end of the resistor R9 is connected with a pin 2 of the chip SC8F6770, and the other end of the resistor R9 is connected with the ADC; the cathode of the diode D5 is connected with the ADC, and the anode is connected with the 3 rd pin of the chip PT4121EE23F of the DC converter 2.

In order to facilitate the programming of the programs in the chip SC8F6770, a programming interface may be connected to the chip SC8F 6770.

By adopting the circuit structure, a hardware foundation can be provided for realizing data acquisition and display of temperature and voltage, and a hardware foundation can be provided for realizing power and temperature display, so that a straight pipe can be conveniently checked.

A second aspect of the utility model discloses an automotive LED bulb comprising an automotive LED bulb driver as described in the first aspect and any one of its possibilities and an LED bulb connected to the output port. The implementation principle of this solution is described in detail in the first aspect, and will not be described here in detail.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an automobile LED bulb driver, includes power port, direct current converter and the output port that connects gradually, its characterized in that: the controller is connected with the input port of the direct current converter through a current acquisition circuit and/or a voltage acquisition circuit, and is connected with an information display circuit.

2. An automotive LED bulb driver as set forth in claim 1, wherein: the information display circuit comprises a display unit and a driving circuit connected between the display unit and the controller and used for driving the display unit to work.

3. An automotive LED bulb driver as set forth in claim 2, wherein: the display unit is one of a nixie tube display screen, a liquid crystal display screen and a touch screen.

4. An automotive LED bulb driver as set forth in claim 2, wherein: the display unit is a nixie tube display screen, and the controller is also connected with a control component for switching the display content of the display unit.

5. The automotive LED bulb driver of claim 4, wherein: the control part is one of a switch key and a touch screen.

6. An automotive LED bulb driver as set forth in claim 1, wherein: and an anti-reverse connection circuit is connected between the power port and the direct current converter.

7. The automotive LED bulb driver of claim 6, wherein: and the output end of the reverse connection preventing circuit is connected with a filter circuit.

8. An automotive LED bulb driver as set forth in claim 1, wherein: and the controller is also connected with a temperature acquisition circuit for acquiring the temperature of the bulb.

9. An automobile LED bulb, which is characterized in that: an automotive LED bulb driver comprising any one of claims 1 to 8 and an LED bulb connected to said output port.