CN217134371U

CN217134371U - LED integrating charging, light-operated and boosting functions

Info

Publication number: CN217134371U
Application number: CN202121984350.8U
Authority: CN
Inventors: 周克洪
Original assignee: Shanghai Shiningic Electronic Technology Co ltd
Current assignee: Shanghai Shiningic Electronic Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-08-05
Anticipated expiration: 2031-08-23

Abstract

An LED integrating charging, light control and boosting functions comprises a main body and at least three pin supports with exposed functional pins, wherein an LED chip, a control IC chip and a patch inductor are fixedly arranged on the main body through welding wires; the three exposed functional pins are used for being respectively connected with the positive end of an external solar battery, the positive end of a battery BAT and a grounding end, and the negative end of the solar battery and the negative end of the battery BAT are connected with the grounding end; the LED chip is provided with 2 pins, the control IC chip at least comprises 4 main pins, one pin of the chip inductor is connected to the positive end of the battery BAT and the third main pin of the control IC, the other pin of the chip inductor is connected to the first main pin of the control IC chip and one pin of the LED chip, and one pin of the LED chip is grounded; the second main pin of the control IC chip is grounded, and the fourth main pin of the control IC chip is connected with the positive end of the solar cell panel. Therefore, the utility model discloses simplify the process, save encapsulating material, still improved production efficiency.

Description

LED integrating charging, light-operated and boosting functions

Technical Field

The utility model belongs to the technical field of lighting circuit, a Light Emitting Diode (LED) chip of integrated charging, light-operated and function of stepping up is related to.

Background

LED lighting is currently recognized as the most efficient lighting technology. The LED light source has the advantages of long service life, low energy consumption, low working voltage, high luminous efficiency, adjustable color temperature and the like, and in the field of general illumination, LEDs are gradually used to replace traditional light-emitting devices, while in the field of solar illumination application, LEDs are almost used.

At present, most of LED light sources used on solar lawn lamps are packaged by a single LED chip, the LED chip is only a light emitting diode, and in the actual use process, a control chip and an inductor are additionally arranged on the periphery.

Referring to fig. 1, fig. 1 is a schematic diagram of an LED and a control circuit in the prior art. As shown in fig. 1, the package characteristics of the LED and the control circuit are as follows: the LED chip comprises a single LED chip, a control IC chip (Integrated Circuit) and a chip inductor, wherein the LED chip, the control IC chip and the chip inductor are respectively fixed on a Printed Circuit Board (PCB for short), and the LED chip, the control IC chip and the chip inductor are connected together through copper-platinum wires on the PCB, so that the function of the Circuit is realized.

Specifically, the LED chip comprises 2 pins, the control IC chip at least comprises 4 pins, one pin of the LED chip is grounded, and the other pin is connected with one pin of the control IC chip and one end of the chip inductor; the other 3 pins of the control IC chip are respectively connected with the positive end of the battery BAT, the positive end of the solar panel and the grounding end, and the negative end of the battery BAT and the negative end of the solar panel are grounded; or, the other 3 pins of the control IC chip are respectively connected to the positive terminal of the battery BAT, the negative terminal of the solar cell panel, and the ground terminal, and the positive terminal of the battery BAT is connected to the positive terminal of the solar cell panel.

It is clear to those skilled in the art that since the LED chip is processed separately, the control IC chip also needs to be packaged separately, and during the processing, a package support, a sealing material, and a thermal curing process are required. After the LED chip, the control IC chip and the chip inductor are prepared, the PCB needs to be prepared, the LED chip, the control IC chip and the chip inductor need to be fixed on the PCB again, circuit control of lighting the LED can be achieved completely through processes of brushing solder paste on the PCB, reflow soldering and the like, the whole process needs more processing procedures, and packaging materials of the control IC chip need to be added.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned technical problem who solves, the utility model provides a brand-new integrated LED encapsulation of charging, light-operated and function of stepping up, it becomes the LED encapsulation that has the integration of functions such as battery charging management, the light-operated bright lamp of big solar cell and stepping up on current single luminous LED original paper basis.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an LED integrating charging, light control and boosting functions comprises a main body and at least three exposed functional pins; an LED chip, a control IC chip and a patch inductor are fixedly arranged on the main body through welding wires; the three exposed functional pins are used for being respectively connected with the positive end of an external solar battery, the positive end of a battery BAT and a grounding end, and the negative end of the solar battery and the negative end of the battery BAT are connected with the grounding end; the LED chip is provided with 2 pins, the control IC chip at least comprises 4 main pins, namely a first main pin, a second main pin, a third main pin and a fourth main pin, one pin of the chip inductor is connected to the positive terminal of the battery BAT and the third main pin of the control IC in a terminating mode, the other pin of the chip inductor is connected to the first main pin of the control IC chip and one pin of the LED chip in a terminating mode, and one pin of the LED chip is grounded; the second main pin of the control IC chip is grounded, and the fourth main pin of the control IC chip is connected with the positive end of the solar panel; or, the fourth main pin of the control IC chip is connected to the negative terminal of the solar panel, and the positive terminal of the solar panel is connected to the positive terminal of the battery BAT, because the use modes of different control ICs are different.

Further, the control IC chip at least comprises 1 slave pin besides 4 pins, and the slave pin is a control pin for switching other functions; the pin support also comprises exposed functional pins with the same number as the slave pins.

Further, the main body is a plane main body, and the patch inductor is parallel to the plane main body.

Further, the three exposed functional pins are presented on a plane or not, and when not presented on a plane, are presented as triangular or quadrangular supports.

Furthermore, an insulating glue is pasted on one end of the exposed pin and one end of the chip inductor for insulation.

Further, the shape of the pin holder body is any one of a cylinder, a round head, a straw hat shape, a sphere or a special-shaped polyhedron.

Further, the pin support is a direct-insert type or a patch support.

Further, the welding wire is a gold wire, a silver wire, an aluminum wire, a copper wire or an alloy wire.

Further, the pin support is iron, aluminum, copper or a pin support with tin or silver plated surface.

Further, the LED chip, the control IC chip, the chip inductor and the exposed functional pins in the main body are molded and packaged by filling colloid.

According to the above technical scheme, the utility model discloses an integrated LED encapsulation of charging, light-operated and function of stepping up, it realizes the function of charge management and automatic light-operated bright lamp in LED chip, control IC chip and the whole encapsulation of paster inductance in a main part.

Therefore, the utility model discloses compare the product on the market, it is when the encapsulation LED chip, through the welding wire, can fix control IC chip and paster inductance in the main part simultaneously and seal solidification shaping together, simplified production processes, saved control IC chip packaging material, improved production efficiency, reduced manufacturing cost.

Drawings

FIG. 1 is a schematic diagram of a prior art LED light source applied in a charging, light-controlling and boosting circuit

Fig. 2 shows that the embodiment of the utility model provides an application circuit schematic diagram of integrated charging, light-operated and function of stepping up of LED encapsulation

Detailed Description

The following describes the present invention in further detail with reference to fig. 2.

Referring to fig. 2, fig. 2 is a schematic diagram of an application circuit of an LED package integrated with charging, light control and boosting functions according to an embodiment of the present invention. As shown in fig. 2, the LED package integrating charging, light control and voltage boosting functions includes a lead frame, which includes a main body (labeled as frame body a in the figure) and three exposed functional pins (labeled as lead B, lead C and lead D in the figure); an LED chip (marked as LED chip 1 in the figure), a control IC chip (marked as control IC2 in the figure) and a patch inductor (marked as patch inductor 3 in the figure) are fixedly arranged on the main body through welding wires; the three functional pins are used for being respectively connected with the positive end of an external solar battery, the positive end of a battery BAT and a grounding end, and the negative end of the solar battery and the negative end of the battery BAT are connected with the grounding end.

It should be noted that, in practical applications, the control IC chip may include one or more slave pins for control, in addition to 4 master pins, where the slave pins are usually control pins; in this case, the pin support also needs to include the same number of exposed functional pins as the slave pins for leading out the slave pins for control.

In the following embodiments of the present invention, the control IC chip is described by taking 4 main pins as an example.

Referring to fig. 2 again, as shown in the figure, the LED chip has 2 pins, the control IC chip includes 4 main pins (a first main pin, a second main pin, a third main pin, and a fourth main pin), one pin of the chip inductor is connected to the positive terminal of the battery BAT and the third main pin of the control IC, the other pin of the chip inductor is connected to the first main pin of the control IC chip and one pin of the LED chip, and one pin of the LED chip is grounded; the second main pin of the control IC chip is grounded, and the fourth main pin of the control IC chip is connected with the positive end of the solar cell panel.

Or, the fourth main pin of the control IC chip may also be connected to the negative terminal of the solar panel, and the positive terminal of the solar panel is connected to the positive terminal of the battery BAT.

In another embodiment, a pin terminal of the chip inductor may be connected to the negative terminal of the battery BAT and the third main pin of the control IC, another pin terminal of the chip inductor may be connected to the first main pin of the control IC chip and a pin of the LED chip, and one pin of the LED chip may be connected to ground; the second main pin of the control IC chip is grounded, and the fourth main pin of the control IC chip is connected with the negative end of the solar cell panel.

It should be noted that the first main pin, the second main pin, the third main pin, and the fourth main pin are not shown in the drawing, and are only used to explain 4 different pins of the control IC chip differently.

In some embodiments of the present invention, the main body of the lead frame may be a planar main body, and the surface of the chip inductor is parallel to the surface of the main body. The three pins (labeled as pin B, pin C, and pin D in the figure) may be on a plane or not, and may be triangular or quadrangular support frame if not on a plane. In addition, the pin support can also be a direct-insert type or a patch support.

In some embodiments of the present invention, the packaged chip can be widely applied to various solar lawn lamps, traffic signal lamps, advertisement lamps, and candle lamps powered by 1.5V alkaline batteries in a greenhouse. The light emitted by the LED chip may be not limited to white light, i.e. may include various colors such as yellow, red, green, blue, and seven-color change, which are not described herein again. The control IC chip can contain a 1.2V rechargeable battery for solar charging, an automatic light control and boosting functional unit, and can also comprise a 1.5V alkaline battery for power supply and boosting.

In some embodiments of the present invention, the type and size specification of the chip inductor may include, but is not limited to, 0402 chip inductor, 0603 chip inductor, 0805 chip inductor, and 1206 chip inductor, or chip inductors that are close to these sizes.

In some embodiments of the present invention, the outer shape portion of the lead frame body is any one of a cylinder, a round head, a straw hat, a sphere or a special-shaped polyhedron, and the outer shape size is not limited and can be changed to a patch shape (similar patch specifications such as 3528 and 5050).

In some embodiments of the present invention, the welding wire may be a gold wire, a silver wire, an aluminum wire, a copper wire, or an alloy wire. The welding wire is a gold wire, a silver wire, an aluminum wire, a copper wire or an alloy wire.

In some embodiments of the present invention, the pin can be pasted with an insulating adhesive, especially, the ground terminal pin can be pasted with an insulating adhesive, so as to effectively prevent short circuit. In addition, the surface mount inductor is basically flat with the main body surface, so that a lead is very convenient to weld, the two pins on the LED chip, the pins of the control IC chip, the two pins of the surface mount inductor and the pins of the pin support are connected together through the welding lead, and after the power-on test function is qualified, the adhesive can be filled for curing and forming.

To sum up, the utility model discloses an integrated LED that charges, light-operated and function of stepping up, it has simplified the process, has saved packaging material, has still improved production efficiency. The utility model discloses a can the wide application in scenes such as candle lamp of 1.5V alkaline battery power supply in various solar energy lawn lamp, traffic signal lamp, advertising light and stifling.

What has just been said is the preferred embodiment of the present invention, the embodiment is not used for limiting the patent protection scope of the present invention, therefore all the equivalent structural changes made by the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED integrating charging, light control and boosting functions is characterized by comprising a pin support, a Light Emitting Diode (LED) and a Light Emitting Diode (LED), wherein the pin support comprises a main body and at least three exposed functional pins; an LED chip, a control IC chip and a patch inductor are fixedly arranged on the main body through welding wires; the three exposed functional pins are used for being respectively connected with the positive end of an external solar battery, the positive end of a battery BAT and a grounding end, and the negative end of the solar battery and the negative end of the battery BAT are connected with the grounding end;

the LED chip is provided with 2 pins, the control IC chip at least comprises 4 main pins, namely a first main pin, a second main pin, a third main pin and a fourth main pin, one pin of the chip inductor is connected to the positive terminal of the battery BAT and the third main pin of the control IC in a terminating mode, the other pin of the chip inductor is connected to the first main pin of the control IC chip and one pin of the LED chip in a terminating mode, and one pin of the LED chip is grounded; the second main pin of the control IC chip is grounded, and the fourth main pin of the control IC chip is connected with the positive end of the solar panel;

or the fourth main pin of the control IC chip is connected with the negative end of the solar panel, and the positive end of the solar panel is connected with the positive end of the battery BAT.

2. The LED integrating charging, light controlling and boosting functions as claimed in claim 1, wherein said control IC chip further comprises at least 1 slave pin, said slave pin is a function switching control pin; the pin support also comprises exposed functional pins with the same number as the slave pins.

3. The integrated charging, light controlling and boost function LED of claim 1, wherein said body is a planar body, and said patch inductor is parallel to said planar body.

4. The integrated charging, light controlling and boost function LED of claim 1, wherein said three exposed functional pins are present on one plane or not, and when not present on one plane, present a triangular or quadrangular support.

5. The LED integrating charging, light controlling and boosting functions as claimed in claim 1, wherein a pin shared with one end of the chip inductor is attached with an insulating adhesive.

6. The integrated charging, light controlling and boosting LED according to claim 1, wherein the outer shape portion of the lead frame body is any one of a cylinder, a round head, a straw hat, a sphere or a shaped polyhedron.

7. The integrated charging, light controlling and boost LED of claim 1, wherein said pin holder is a direct plug-in or a patch holder.

8. The integrated charging, light controlling and boost function LED of claim 1, wherein said bonding wires are gold wires, silver wires, aluminum wires, copper wires or alloy wires.

9. The integrated charging, light controlling and boost function LED of claim 1, wherein said lead frame is iron, aluminum, copper or surface tin or silver plated lead frame.

10. The LED integrating charging, light controlling and boosting functions as claimed in claim 1, wherein the LED chip, the control IC chip, the chip inductor and the exposed functional pins in the main body are molded and packaged by filling adhesive.