TW201407499A - Strip layout having identification structure of LED lead frame - Google Patents

Abstract

A strip layout having identification structure of LED lead frame is disclosed. The strip layout includes a plural of lead frames groups, a main linking section, clamping pieces, first frame(s) and second frame(s). The lead frames groups are arranged at intervals and in a line continuously. Each lead frames group has a certain number of frame units. The main linking section connects the frame units and extends to connect the neighboring lead frames group. The clamping pieces are located between adjacent lead frames groups and extrude from the side of the main linking section. The first frame(s) and second frame(s) are located at the outer of the lead frames groups. Wherein, the quantity of the first frame(s) is not equal to the quantity of the second frame(s). And the sum of the quantity of the first frame(s) and the quantity of the second frame(s) is equal to the quantity of the frame units included in one lead frames group.

Description

LED strip with identification structure

The invention relates to an LED strip, in particular to an LED strip with an identification structure.

As shown in the first figure, the vertical light-emitting diode support structure is provided with a plurality of equidistantly connected bracket units 20a on a lead frame 10a, and each of the bracket units 20a is provided with two opposite first pins. 21a and the second pin 22a, and a bowl-shaped recess 210a is formed at the upper end of the first pin 21a for carrying and fixing a wafer (Die bond), and the second pin 22a has an upper end. a contact is connected to a wire by power supply; then, the contact between the wafer on the first pin 21a and the second pin 22a is connected by soldering (Wiring), after the electrical connection is completed, Then, it is coated and encapsulated by a sealing material (such as epoxy resin), and subjected to cutting, finished product testing, and packaging operations, thereby forming a light-emitting diode.

However, in the manufacturing process of the above-mentioned light-emitting diode, since the wafer of the light-emitting diode must be disposed on the first pin 21a, and the second pin 22a is used for connecting the wire, the lead frame 10a must be oriented in a certain direction. Placed in the mold to place the wafer on the correct pins and perform subsequent wire bonding and cladding processes.

The method for determining the directivity of the lead frame 10a is to cut a bevel 30a on one side of the lead frame 10a, and the setting of the bevel 30a can determine whether the lead frame 10a is correctly placed; however, the conventional wire The bevel 30a of the frame 10a requires another mold to be subjected to secondary processing, which is time-consuming and has an additional mold cost, thereby causing an increase in product cost, which is a positive improvement of the inventors.

In view of the above, the present inventors have made great efforts to study and cooperate with the application of the theory, and finally propose a present invention which is reasonable in design and effective in improving the above-mentioned defects.

An object of the present invention is to provide an LED strip with an identification structure, which provides an LED strip to be placed in a mold in a certain direction to facilitate subsequent die bonding, wire bonding and encapsulation processes.

In order to achieve the above object, the present invention is an LED strip having an identification structure, including a plurality of lead frame sets, which are equidistantly connected and arranged in a line, each lead frame set including a certain number of bracket units; at least one main In the connecting section, the main connecting section is connected in series with the bracket units in each lead frame group, and extends to connect another adjacent lead frame set; a plurality of clamping pieces, each of which is located in each lead frame An adjacent bracket unit in the group protrudes from one side of the main connecting section; a first zero-distortion lead frame is located on an outer side of the lead frame sets, and the first zero-distortion lead frame includes at least one a bracket unit; and a second zero-distortion lead frame opposite to the other outer side of the lead frame set, the second zero-distortion lead frame includes at least one second bracket unit; wherein the number of the first bracket unit is not equal to the second The number of bracket units, and the sum of the number of first bracket units and the number of second bracket units is equal to the number of bracket units included in each lead frame group.

In order to achieve the above object, the present invention is an LED strip having an identification structure, comprising a lead frame group which are equidistantly connected and arranged in a line, the lead frame group comprising a certain number of bracket units; at least one main connection a segment connecting the plurality of bracket units in the lead frame group; a plurality of clamping pieces, each of the clamping pieces being located between adjacent ones of the lead frame groups, and protruding therefrom a side of the main junction; a first zero-distortion lead frame located on an outer side of the lead frame set, the first zero-distortion lead frame includes at least one first bracket unit; and a second zero-distortion lead frame opposite to the wire The other outer side of the shelf set, the second zero-distortion lead frame includes at least one second bracket unit; wherein the number of the first bracket units is not equal to the number of the second bracket units, and the number of the first bracket units and the second bracket The sum of the number of units is equal to the number of bracket units included in the leadframe group.

Compared with the prior art, the LED base of the present invention mainly utilizes the setting of the clamping piece, thereby separating the LED strip into a lead frame set, a first zero-distortion lead frame and a second zero-distortion lead frame, and The first zero-distortion lead frame and the second zero-distortion lead frame include different numbers of bracket units, thereby serving as a basis for judging the direction of the LED strips, so as to provide the LED strips to be placed in the mold in a certain direction, and to perform subsequent solidification. The crystal, wire bonding and encapsulation process eliminates the secondary processing steps that are conventionally used to identify the direction, and can reduce the cost of the mold, thereby reducing the product cost and increasing the practicability of the present invention.

The detailed description and technical content of the present invention are set forth in the accompanying drawings.

Please refer to the second figure, which is a schematic plan view of the LED strip with the identification structure of the present invention. The LED strip 1 includes a plurality of lead frame sets 10, at least one main connecting section 20, a plurality of clamping pieces 30, and a first zero. The distorted lead frame 40 and the second zero-distortion lead frame 50.

The lead frame sets 10 are arranged in a straight line, and each lead frame set 10 includes a certain number of bracket units 11; in this embodiment, the LED strip 1 includes three sets of lead frame sets 10, each set of lead frames Group 10 is comprised of five bracket units 11. Each of the bracket units 11 includes a first pin 111 and a second pin 112 spaced apart from each other. The first pin 111 is formed with a concave cup 113 for arranging an LED chip.

The main connecting section 20 is connected in series with the bracket units 11 in each lead frame set 10, and extends to both sides to connect adjacent one lead frame sets 10; preferably, the main connecting section 20 is formed In the middle of the first pin 111 and the second pin 112, the supporting forces of the first pin 111 and the second pin 112 are provided.

In the process of injection molding, the arrangement of the holding pieces 30 provides a mold for clamping. The clamping pieces 30 are formed corresponding to the positions of the respective bracket units 11 , and each of the clamping pieces 30 is located between the adjacent bracket units 11 in each lead frame set 10 and protrudes from the main connecting section 20 . In the embodiment, the clamping pieces 30 have a trapezoidal cross section, which is not limited thereto.

It should be noted that the holding piece 30 is not present on the main connecting section between the adjacent lead frame sets 10, and the range of the set of lead frames 10 can be determined by the setting of the holding piece 30 or not. The number of the bracket units 11 included in each set of lead frame sets 10 is such that if the adjacent two bracket units 11 do not have the holding piece 30, the adjacent two bracket units 11 belong to different sets of lead frames. Group 10.

The first zero-distortion lead frame 40 is located on an outer side of the lead frame sets 10, and the first zero-distortion lead frame 40 includes at least one first bracket unit 41; The other outer side of the lead frame set 10 includes the at least one second bracket unit 51; wherein the first zero-distortion lead frame 40 includes a number of the first bracket units 41 that is not equal to the second zero-distortion wires The rack 50 includes a second bracket unit 51, and the sum of the number of the first bracket units 41 of the first zero-distance lead frame 40 and the second bracket unit 51 of the second zero-distortion lead frame 50 is equal to each lead frame group. 10 includes the number of bracket units 11.

Furthermore, the LED strip 1 of the present invention further includes an auxiliary engaging section 60 which is fastened to the other side of the concave cups 113. The auxiliary engaging sections 60 are connected in series with the bracket units. 11. The first bracket unit 41 and the last section of the second bracket unit 51.

Referring to the third figure, it is a schematic diagram of the use of the LED strip with the identification structure of the present invention; the LED strip 1 of the present invention is used in a mold 2 having an opposite first side. The side 2' and the second side 2", the LED strip 1 must be placed in the mold 2 in a certain direction to place the wafer on the first pin 111, followed by wire bonding, and finally using the packaging material. 3 The packaging process is performed to complete the fabrication of the light-emitting diode.

When the LED strip 1 is placed, the direction identification method is determined by the first zero-distortion lead frame 40 and the second zero-distortion lead frame 50 on the outer side of the LED strip 1, for example, two brackets are included. One side of the first zero-distortion lead frame 40 of the unit 41 is set to the left side, and oppositely, the other side of the second zero-distance lead frame 50 including the three bracket units 51 is the right side, and then can be further Process setting, for example, positioning the first zero-distortion lead frame 40 on the left side on the first side 2' of the mold 2, and positioning the second zero-distortion lead frame 50 on the right side on the second side 2 of the mold 2 Thus, the LED strip 1 is correctly placed in the mold 2 to complete the fabrication of the LED, and then the cutting or dispensing process is performed.

It is worth mentioning that the LED strip 1 of the present invention can also be provided with a separate set of lead frame sets. In this embodiment, the lead frame set 10 and the first zero-distortion lead frame 40 and the lead frame set 10 are The holding piece 30 is not provided on the main engaging section 20 between the second and second lead frame 50.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and other equivalent variations of the patent spirit of the present invention are all within the scope of the invention.

10a. . . Lead frame

20a. . . Bracket unit

21a. . . First pin

210a. . . Concave

22a. . . Second pin

30a. . . bevel

1. . . LED tape

2. . . Mold

3. . . Packaging material

2'. . . First side

2"...second side

10. . . Lead frame set

11. . . Bracket unit

111. . . First pin

112. . . Second pin

113. . . Concave cup

20. . . Main link

30. . . Holding piece

40. . . First zero distortion lead frame

41. . . First bracket unit

50. . . The 20th distortion lead frame

51. . . Second bracket unit

60. . . Auxiliary connection segment

The first figure is an LED strip of a general vertical light-emitting diode support;

2 is a schematic plan view of an LED strip with an identification structure of the present invention;

The third figure is a schematic diagram of the use of the LED strip with the identification structure of the present invention.

1. . . LED tape

10. . . Lead frame set

11. . . Bracket unit

111. . . First pin

112. . . Second pin

113. . . Concave cup

20. . . Main link

30. . . Holding piece

40. . . First zero distortion lead frame

41. . . First bracket unit

50. . . The 20th distortion lead frame

51. . . Second bracket unit

60. . . Auxiliary connection segment

Claims (10)

An LED strip with an identification structure, comprising:
The plurality of lead frame groups are equidistantly connected and arranged in a straight line, and each lead frame group comprises a certain number of bracket units;
At least one main connecting section, the main connecting section is connected in series with the bracket units in each lead frame group, and extends to connect another adjacent lead frame set;
a plurality of clamping pieces, each of the clamping pieces being located between adjacent bracket units in each lead frame group and protruding on one side of the main connecting section;
a first zero-distortion lead frame located on an outer side of the lead frame sets, the first zero-distortion lead frame includes at least one first bracket unit; and a second zero-distortion lead frame opposite to the other outer side of the lead frame sets The second zero-distortion lead frame includes at least one second bracket unit;
Wherein, the number of the first bracket units is not equal to the number of the second bracket units, and the sum of the number of the first bracket units and the number of the second bracket units is equal to the number of the bracket units included in each lead frame group. The LED strip of the identification structure of claim 1, wherein each of the bracket units comprises a first pin and a second pin disposed at intervals, the first pin is formed with a concave cup, the main connecting section Formed in the middle of the first and second pins. The LED strip of the identification structure of claim 2, further comprising an auxiliary engaging section, the auxiliary engaging section being tied to the other side of the concave cup, wherein the auxiliary engaging section is connected to the auxiliary strap The last section of the bracket unit, the first bracket unit, and the second bracket unit. The LED strip of the identification structure of claim 1, wherein the clamping piece has a trapezoidal cross section. The LED strip of the identification structure of claim 1, wherein the holding tab is not provided on the main connecting section between adjacent leadframe sets. The LED strip with the identification structure of claim 1, wherein the LED strip comprises three sets of lead frames, the first zero-distortion lead frame comprises two first bracket units, and the second zero-distortion lead frame comprises three Two second bracket units. An LED strip with an identification structure, comprising:
a lead frame group is equidistantly connected and arranged in a line, the lead frame group comprising a certain number of bracket units;
At least one main connecting section, the main connecting section is connected to the bracket units in the lead frame group;
a plurality of clamping pieces, each of the clamping pieces being located between adjacent ones of the lead frame sets and projecting on one side of the main engaging section;
a first zero-distortion lead frame located on an outer side of the lead frame set, the first zero-distortion lead frame includes at least one first bracket unit; and a second zero-distortion lead frame opposite to the other outer side of the lead frame set, The 20-point lead frame includes at least one second bracket unit;
Wherein, the number of the first bracket units is not equal to the number of the second bracket units, and the sum of the number of the first bracket units and the number of the second bracket units is equal to the number of the bracket units included in the lead frame group. The LED strip of the identification structure of claim 7, wherein each of the bracket units comprises a first pin and a second pin disposed at intervals, the first pin is formed with a concave cup, the main connecting section Formed in the middle of the first and second pins. The LED strip with the identification structure according to claim 7, wherein the lead frame group and the first zero-distortion lead frame, the lead frame group and the second zero-distortion lead frame do not have the clamping piece on the main connecting section. . The LED strip with the identification structure of claim 7, wherein the clamping strip has a trapezoidal cross section, the LED strip comprises three sets of lead frames, and the first zero-distortion lead frame comprises two first brackets. The unit, the second zero-distortion lead frame comprises three second bracket units.