CN210136890U

CN210136890U - Single crystal and polycrystal sharing type lead frame and light emitting device thereof

Info

Publication number: CN210136890U
Application number: CN201920918808.6U
Authority: CN
Inventors: 邹志平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-03-10
Anticipated expiration: 2029-06-18

Abstract

The utility model relates to a single crystal, polycrystal sharing type lead frame and illuminator thereof includes: a single body provided with a groove; the plurality of conductive areas are arranged in the single body, and are arranged in a matrix in the groove; by the single groove, at least one light emitting diode is provided to be selectively packaged into one or two or more groups of independent circuits of the light emitting diodes, so that various types of LED light-emitting devices are provided.

Description

Single crystal and polycrystal sharing type lead frame and light emitting device thereof

Technical Field

The present invention relates to the field of light emitting diode technology, and more particularly to a single crystal/polycrystalline shared leadframe and a light emitting device thereof.

Background

Light-emitting diodes (LEDs) are used for lighting purposes. The light-emitting device using the light-emitting diode has the advantages of high efficiency, long service life, difficult damage, high reaction speed, high reliability and the like.

Although the manufacturing cost of the lighting device using the light emitting diode is much higher than that of the traditional lighting lamp, the energy-saving effect of the lighting device is beyond that of the traditional lighting lamp, and in the new modern energy source environmental awareness, the light emitting diode is quite required in the modern times.

Furthermore, the light emitting diode used in the general light emitting device can be classified into single crystal, polycrystal, etc., and the single crystal light emitting device usually uses a lead frame suitable for single crystal, such as taiwan patent No. TW-I511339 "light emitting diode package and lead frame thereof"; the polycrystalline light emitting device uses a lead frame suitable for polycrystalline, such as the light emitting diode package and the lead frame thereof of patent No. TW-I478404 of Taiwan patent application.

Therefore, when manufacturers put on production of single-crystal or multi-crystal light emitting devices, they must provide lead frames for both single-crystal and multi-crystal leads, which increases the inventory risk and further increases the manufacturing cost of LED light emitting devices. Moreover, the lead frame can not be separated thermoelectrically, so that the whole circuit of the light-emitting diode generates voltage drift, and further the image illumination effect is achieved.

SUMMERY OF THE UTILITY MODEL

Accordingly, in view of the problems of the conventional lead frame for the light emitting diode, the present inventors have proposed a single crystal or polycrystalline common lead frame and a light emitting device thereof, and therefore, the present invention mainly aims to: providing a single crystal and polycrystal shared lead frame, namely, the one-type lead frame can be used for producing multi-type LED lamps; the utility model discloses a secondary aim at: a lead frame capable of thermoelectric separation is provided.

The utility model discloses a reach above-mentioned purpose, utilize following technical means:

the utility model relates to a single crystal, polycrystal sharing type lead frame includes: a single body provided with a groove; the plurality of conductive areas are arranged in the single body, and are arranged in a matrix in the groove; by the single groove, at least one light emitting diode is provided to select one or two or more groups of independent circuits to be packaged into the light emitting diode.

The plurality of conductive regions are arranged in a 3 x 3 manner.

The plurality of conductive areas of the light-emitting diode lead frame further comprise a first row, a second row and a third row, each row of the light-emitting diode lead frame is respectively composed of a long conductive area and a short conductive area, and the arrangement mode of the long conductive area and the short conductive area of the third row is different from that of the first row and the second row.

The sum of the widths of the conducting areas and the short conducting areas is greater than or equal to the width (W) of the single body, and the sum of the lengths of the conducting areas and the short conducting areas of each row is greater than or equal to the length (L) of the single body.

The present invention relates to a light emitting device, which uses the single crystal/polycrystal shared lead frame, and comprises: a lead frame, which is provided with a plurality of conductive areas arranged in a matrix in a groove arranged in a single body, and a plurality of connecting wires are extended from two side items of the single body; the LED comprises at least one single body, a plurality of LED chips and a plurality of LED chips, wherein the LED chips are arranged in a groove of the single body in a matrix manner, a plurality of wiring lines extend from two side items of the single body, and the wiring lines are correspondingly connected with the conductive areas in parallel and extend to the outside of the single body from the single body; by encapsulating a single or a plurality of light emitting diodes in the groove of the lead frame, various types of light emitting devices are formed.

The light emitting device, wherein the light emitting diode is used as a single light emitting diode, and a group of independent circuits are formed in the plurality of conductive areas.

In the light-emitting device, a plurality of light-emitting diodes are used, and a plurality of groups of independent circuits are formed in the plurality of conductive areas so as to achieve the effect of voltage series connection and stacking.

The light emitting diodes are multiple, and form a group or two-group or array independent circuit in the multiple conductive areas, so that a plurality of applied light emitting devices can be matched.

The light emitting device, wherein the plurality of light emitting diodes are set to different colors.

The utility model discloses utilize above-mentioned technical means, can reach following efficiency:

1. the utility model discloses the lead frame that uses is equipped with a plurality of electrically conductive regions of matrix arrangement, visual demand, different colour emitting diode such as cooperation single crystal, polycrystal to make up emitting diode's such as a set of or two sets of or multiunit lighting circuit, so the utility model discloses lead frame extensive applicability, the electrically conductive frame of the same kind can produce manifold type LED lamp, provides the production of should attaching each type LED lighting device with less prepareeing material, equipment, in order to avoid the material dull, and reduce LED lighting device's manufacturing cost.

2. The utility model discloses the lead frame is equipped with a plurality of electrically conductive regions of matrix arrangement, in other words, cuts into many parts heat dissipation with single heat dissipation the utility model discloses under the operating condition that illuminator lasted to light, so can avoid heat to concentrate and lead to the radiating rate to slow down to reduce LED lamp illuminator's temperature, with stability and the life-span that increases the product, and promote the light efficiency ability, reach the effect of energy-conserving carbon reduction.

3. And simultaneously, the utility model discloses illuminator lets the electric current get into the electrically conductive position of direction can not be repeated with the crystalline grain, lets LED light produced heat energy, can not influence the distribution that the crystalline grain was crossed to the current flow, and then lets the bulk voltage can not produce and drift.

Drawings

Fig. 1 is a perspective view of a single crystal/polycrystalline shared leadframe according to the present invention.

Fig. 2 is a front view of a single crystal/polycrystalline shared leadframe according to the present invention.

Fig. 3 is a back view of a single crystal/polycrystalline shared leadframe according to the present invention.

Fig. 4 is a schematic view of a first embodiment of a light emitting device according to the present invention.

Fig. 5 is a schematic cross-sectional view of a first aspect of the light emitting device of the present invention, as shown in fig. 5.

Fig. 6 is a schematic diagram of a second embodiment of the light emitting device of the present invention.

Fig. 7 is a schematic view of a third embodiment of a light emitting device according to the present invention.

Fig. 8 is a schematic diagram of a fourth embodiment of a light emitting device according to the present invention.

Fig. 9a to 9d are schematic views of other embodiments of the light emitting device of the present invention.

Fig. 10 is an overall external view of a single crystal/polycrystalline shared leadframe according to the present invention, which is not yet cut.

Description of reference numerals: a-a lead frame; 1-a monomer; 11-a groove; the length of the L-monomer; w-width of monomer; 2-a conductive region; 201-long conductive region; 202-short conductive regions; 21-first column; 22-second column; 23-third column; b-a light emitting device; 3-light emitting diode.

Detailed Description

Referring to fig. 1 to 3, a single crystal/polycrystalline common lead frame a according to the present invention includes: a single body 1, a plurality of conductive regions 2.

The single body 1, as shown in fig. 1 and 10, is substantially cubic and made of a highly reflective and heat-resistant material, and is provided with a groove 11, and the single body 1 is generally a package cut from the whole lead frame shown in fig. 10.

The conductive regions 2 are mounted inside the single body 1, as shown in fig. 2 and 3, and the grooves 11 are formed with the conductive regions 2 arranged in a matrix, and the conductive regions 2 further include a plurality of long conductive regions 201 and a plurality of short conductive regions 202, and each conductive region 2 has a conductor (conductor) property and provides adhesion of at least one LED die, so as to form one or two or more groups of independent circuits with a power of 0.1 watt or more. In other words, different material combinations such as the single body 1 and the conductive region 2 can be matched according to the wattage of the product.

In other words, the single body 1 between the conductive regions 2 is in an insulated state, and the conductive regions 2 are further arranged in 3 × 3 rows, that is, the conductive regions 2 are arranged in a first row 21, a second row 22, a third row 23, and the like, and each row is composed of a long conductive region 201 and a short conductive region 202, respectively, and the arrangement of the long conductive region 201 and the short conductive region 202 of the third row 23 is different from the arrangement of the first row 21 and the second row 22, and the arrangement of the long conductive region and the short conductive region of the first row 21 and the second row 22 is the same.

In particular, referring to fig. 2, the width specifications of the long conductive regions 201 and the short conductive regions 202 of each row of the conductive region 2 are as follows: the sum of the widths of all the long conductive regions 201 and the short conductive regions 202 > is equal to the individual width (W) of 1/2, i.e., (a + b + c) > (1/2 (W), (d + e + f) > (1/2 (W)).

The lengths of the long conductive regions 201 and the short conductive regions 202 of each row of the conductive region 2 are specified as follows: the sum of the lengths of all the long conductive regions 201 and the short conductive regions 202 > is the monomer length (L) of 1/2, i.e., (a + d) > (1/2 (L), (b + e) > (1/2 (L), and (c + f) > (1/2 (L).

The single body 1 and the plurality of conductive regions 2 form a single crystal or polycrystalline shared lead frame a of the present invention, and the plurality of conductive regions 2 arranged in a matrix in the groove 11 of the single body 1 are provided to provide at least one or more light emitting diodes 3, and are selectively adhered and packaged into a lighting device B of one or more types as shown in fig. 4 and 5, as shown in fig. 7 and 9 a-9 d.

Referring to fig. 4 to 8, a light emitting device B according to the present invention uses the single crystal/polycrystalline common lead frame a, wherein the light emitting device B includes: a lead frame A and at least one light emitting diode 3.

The lead frame a is a groove 11 formed in the single body 1, the groove 1 has a plurality of conductive areas 2 arranged in a matrix, a plurality of wires 3 extend from two sides of the single body 1, and each wire 3 is correspondingly connected to the plurality of conductive areas 2 and extends from the single body 1 to the outside of the single body 1; and

at least one LED 3, which is selectively installed on the plurality of conductive regions 2, and the LED 3 grain is divided into horizontal electrodes or vertical electrodes.

The light emitting diode 3 is packaged in the groove 11 of the lead frame A to form a light emitting device B. Wherein the light emitting diode 3 is used as a single one, and a set of independent circuits are formed on the plurality of conductive regions 2. In addition, a plurality of light emitting diodes 3 are used, and one or two or more groups of independent circuits are formed in the plurality of conductive regions 2, so that the effect of voltage series connection and stacking is achieved. In addition, a plurality of light emitting diodes 3 are used, and an array of independent circuits are formed in the plurality of conductive regions 2, so that a plurality of light emitting devices B can be used in combination, as shown in fig. 4 to 8.

Referring to fig. 4 and 5, a first aspect of the light emitting device B of the present invention is shown, that is, three LED dies with different colors are used, for example: blue, green, and white or other colors of light use two LED dies with horizontal electrodes and one LED die with vertical electrodes.

Fig. 6 shows a second aspect of the light emitting device B of the present invention, wherein a single led is used in the second aspect, and a set of independent circuits are formed in the plurality of conductive regions 2.

Fig. 7 shows a third aspect of the light emitting device B of the present invention, in which two light emitting diodes are used in the third aspect, and two sets of independent circuits are formed in the plurality of conductive regions 2.

Please refer to fig. 8, which is a fourth aspect of the light emitting device B of the present invention, wherein the fourth aspect uses at least three or more light emitting diodes, which are six LED dies in the present embodiment, and forms a set of independent circuits in the conductive regions 2, so as to achieve the effect of serially connecting voltages to the stack, for example: using six LED dies, if a single LED die is set to 3 volts, then 18 volts (3 × 6) of the lighting device B is stacked; if the single LED die is set to 9 volts, a lighting device B with 54 volts (9 × 6) is stacked; if a single LED die is set to 18 volts, 108 volts (18 x 6) of the lighting devices B are stacked. In particular, the present embodiment is not limited to only constitute one set of independent circuits.

Please refer to fig. 9 a-9 d, wherein the pattern of fig. 9a is configured as a light emitting diode 3 die using three horizontal electrodes and installed in the groove 1 of the lead frame a of the present invention to form a lighting circuit of a light emitting device, for example: setting the voltage of a single crystal grain as 2V, and setting the voltage of the whole stacked lighting device as 2V by 3-6V; in the embodiment of fig. 9b, ten horizontal electrodes of the light emitting diode 3 dies are used and installed in the groove 1 of the lead frame a of the present invention to form a lighting circuit of the light emitting device, for example: setting the voltage of a single crystal grain as 18V, and setting the voltage of the whole stacked lighting device as 18V by 10 as 180V; in the embodiment of fig. 9c, a light emitting diode 3 die with three vertical electrodes is installed in the groove 1 of the lead frame a to form a lighting circuit of a light emitting device, for example: if the single die is set to 2V, the voltage of the whole stacked lighting device is 2V × 3 — 6V, as in the case of fig. 9 d.

It should be understood that the above-described embodiments and the technical principles applied thereto are not intended to limit the scope of the present invention if the functional effects thereof are not beyond the spirit of the present specification and the drawings.

Claims

1. A single crystal, polycrystalline shared leadframe, comprising:

a single body provided with a groove;

the plurality of conductive areas are arranged in the single body, and are arranged in a matrix in the groove; and

by the single groove, at least one light emitting diode is provided to select one or two or more groups of independent circuits to be packaged into the light emitting diode.

2. The single crystal, polycrystalline shared leadframe according to claim 1, wherein the plurality of conductive regions are arranged in a 3 x 3 arrangement.

3. The single crystal, polycrystalline shared leadframe according to claim 2, wherein the plurality of conductive regions further comprises a first row, a second row, and a third row, each row comprising a long conductive region and a short conductive region, and the long conductive regions and the short conductive regions of the third row are arranged differently from the first row and the second row.

4. The single crystal, polycrystalline shared leadframe according to claim 3, wherein the sum of the widths of the conductive regions and short conductive regions is greater than or equal to the width (W) of the body, and the sum of the lengths of the conductive regions and short conductive regions of the columns is greater than or equal to the length (L) of the body.

5. A light emitting device using the single crystal/polycrystalline shared leadframe according to any one of claims 1 to 4, comprising:

the lead frame is provided with a plurality of conductive areas which are arranged in a matrix in a groove arranged in a single body, a plurality of connecting wires extend from two side items of the single body, and each connecting wire is correspondingly connected with the plurality of conductive areas in parallel and extends to the outside of the single body from the single body; and

at least one light emitting diode, which is selectively arranged on the plurality of conductive areas;

the light emitting diode is packaged in the groove of the lead frame, so that the light emitting device is formed.

6. The light-emitting device according to claim 5, wherein a single light-emitting diode is used, and a set of independent circuits is formed in the plurality of conductive regions.

7. The light-emitting device according to claim 5, wherein a plurality of light-emitting diodes are used, and a plurality of independent circuits are formed in the plurality of conductive regions to achieve a voltage cascade stack effect.

8. The light-emitting device according to claim 5, wherein a plurality of light-emitting diodes are used, and a plurality of groups or two or more groups of independent circuits are formed on the plurality of conductive regions to match with a plurality of light-emitting devices.

9. The light-emitting device according to claim 7 or 8, wherein the plurality of light-emitting diodes are provided in different colors.