LED lead frame

Abstract

The utility model discloses an LED lead frame, the LED lead frame is divided into a first frame and a second frame, the first frame is provided with a first base, the second frame is provided with a second base, one of the first base and the second base can be used as a positive base, and the other one can be used as a negative base. The first frame and the second frame are stacked in the vertical direction, a first protruding part of the first base extends downwards into the second receding groove and is arranged at an interval with the inner circumferential wall of the second receding groove, and a second protruding part of the second base extends upwards into the first receding groove and is arranged at an interval with the inner circumferential wall of the first receding groove. In addition, the insulating layer is arranged between the first frame and the second frame, so that the first frame and the second frame can be effectively isolated, all the LED lamp beads are in a parallel and electrically separated state after packaging, all the lamp beads on the LED lead frame can be tested at the same time under the condition that cutting is not carried out, and the testing efficiency is improved. The test efficiency is greatly improved; and the test cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of LED packaging technology, and in particular to an LED lead frame. Background Technology

[0002] Current LED lead frames typically consist of multiple frame units. During manufacturing, isolated positive and negative electrode bases need to be etched simultaneously on each frame unit. Adjacent frame units are connected by connecting ribs. Within each frame unit, the LED chip is installed and connected to the positive and negative electrode bases via leads. After injection molding, the units are separated along the connecting ribs to form individual LED chips. However, before separation, the two positive electrode bases of adjacent frame units are connected by connecting ribs, the two negative electrode bases of adjacent frame units are connected by connecting ribs, and the positive and negative electrode bases of adjacent frame units are connected by connecting ribs. This means that after encapsulation, the LED chips are electrically connected. Therefore, testing requires cutting and separating each frame unit to electrically isolate the LED chips before individual testing, resulting in low testing efficiency and high testing costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an LED lead frame that can simultaneously test all the LED beads on the LED lead frame without cutting, greatly improving testing efficiency and reducing testing costs.

[0004] An LED lead frame according to an embodiment of the present invention includes: a first frame having a first frame and a plurality of first units located within the first frame, each first unit having a first partition and a second partition arranged side by side in a transverse direction, the first partition having a first base connected to the first frame, the first base having a downwardly protruding first protrusion, and the second partition having a first clearance groove; a second frame having a second frame and a plurality of second units located within the second frame, each second unit having a third partition and a fourth partition arranged side by side in a transverse direction, the third partition having a second clearance groove, the fourth partition having a second base connected to the second frame, the second base having an upwardly protruding second protrusion; wherein, the first frame is located on the upper side of the second frame, and an insulating layer is provided between the first frame and the second frame, in the corresponding first unit and second unit, the first protrusion extends downward to be embedded in the second clearance groove and spaced apart from the inner peripheral wall of the second clearance groove, and the second protrusion extends upward to be embedded in the first clearance groove and spaced apart from the inner peripheral wall of the first clearance groove.

[0005] The LED lead frame according to the embodiment of this utility model has at least the following beneficial effects:

[0006] By employing the LED lead frame of this embodiment, the LED lead frame is divided into a first frame and a second frame that are independent of each other. A first base and a first clearance groove are provided in the first unit of the first frame, and a second base and a second clearance groove are provided in the second unit of the second frame. One of the first base and the second base can be a positive base, and the other can be a negative base, so that the first base and the second base can connect to the positive and negative terminals of the LED and cooperate to power the LED. During assembly, the first frame and the second frame are stacked vertically, so that the first protrusion of the first base extends downward to be embedded in the second clearance groove, and the second protrusion of the second base extends upward to be embedded in the first clearance groove. This allows the corresponding first base and the second base to be embedded together, so that the corresponding first unit and the second unit can form a frame unit on the LED lead frame. Thus, multiple frame units can be formed on the LED lead frame, and the first base and the second base in each frame unit can cooperate to install and support an LED. Because the first protrusion is spaced apart from the inner peripheral wall of the second relief groove, and the second protrusion is spaced apart from the inner peripheral wall of the first relief groove, and an insulating layer is provided between the first frame and the second frame, the first frame and the second frame can be effectively isolated, thereby electrically separating all the first bases on the first frame and all the second bases on the second frame, that is, electrically separating all the positive bases from all the negative bases. Thus, after packaging, each LED bead is installed between the first base and the second base in each unit. At this time, all the LED beads are in parallel and electrically separated. Therefore, all the LED beads on the LED lead frame can be tested simultaneously without cutting, which greatly improves the testing efficiency and reduces the testing cost.

[0007] According to some embodiments of this utility model, the insulating layer is a double-sided insulating adhesive, and the first frame and the second frame are bonded together through the insulating layer.

[0008] According to some embodiments of the present invention, in the corresponding first unit and second unit, the lower surface of the first protrusion is flush with the lower surface of the second base, and the upper surface of the second protrusion is flush with the upper surface of the first base.

[0009] According to some embodiments of the present invention, in the corresponding first unit and second unit, the lower surface of the first protrusion and the lower surface of the second protrusion are flush with the lower surface of the second frame, and the upper surface of the second protrusion and the upper surface of the second base are flush with the upper surface of the first frame.

[0010] According to some embodiments of the present invention, it further includes a molding portion, wherein the molding portion is partially filled between the inner peripheral wall of the first base and the second relief groove, and the molding portion is partially filled between the inner peripheral wall of the second base and the first relief groove.

[0011] According to some embodiments of the present invention, at least two first units are arranged sequentially along the longitudinal direction to form a first longitudinal unit group. In the first longitudinal unit group, the first bases at both ends are connected to the first frame through first connecting ribs. Two adjacent first bases are aligned along the longitudinal direction and connected through second connecting ribs. Two adjacent first clearance slots are aligned along the longitudinal direction and communicate with each other. At least two second units are arranged sequentially along the longitudinal direction to form a second longitudinal unit group. In the second longitudinal unit group, the second bases at both ends are connected to the second frame through third connecting ribs. Two adjacent second bases are aligned along the longitudinal direction and connected through fourth connecting ribs. Two adjacent second clearance slots are aligned along the longitudinal direction and communicate with each other.

[0012] According to some embodiments of the present invention, the number of the first longitudinal unit groups is at least two groups, and all the first longitudinal unit groups are arranged side by side along the transverse direction. In the transverse direction, the first base in the first longitudinal unit group located at the end is arranged with a gap between it and the first frame. The two first bases in two adjacent groups of the first longitudinal unit groups are respectively disposed on opposite sides of one of the first relief grooves and form the inner walls of the two sides of the first relief groove. The number of the second longitudinal unit groups is at least two groups, and all the second longitudinal unit groups are arranged side by side along the transverse direction. In the transverse direction, the second base in the second longitudinal unit group located at the end is arranged with a gap between it and the first frame. The two second bases in two adjacent groups of the second longitudinal unit groups are respectively disposed on opposite sides of one of the second relief grooves and form the inner walls of the two sides of the second relief groove.

[0013] According to some embodiments of the present invention, the first frame is provided with a first connecting block corresponding to the first longitudinal unit group, and a first connecting rib located at the end of the first longitudinal unit group is connected to the corresponding first connecting block. The first connecting block is arranged to protrude downward relative to the first frame, and the second frame is provided with a first through groove corresponding to the first connecting block. When the first frame is connected to the upper side of the second frame, the first connecting block is inserted downward into the first through groove, and the plastic seal is filled between the inner wall of the first connecting block and the first through groove. The second frame is provided with a second connecting block corresponding to the second longitudinal unit group, and a third connecting rib located at the end of the second longitudinal unit group is connected to the corresponding second connecting block. The second connecting block is arranged to protrude upward relative to the second frame, and the first frame is provided with a second through groove corresponding to the second connecting block. When the first frame is connected to the upper side of the second frame, the second connecting block is inserted upward into the second through groove, and the plastic seal is filled between the inner wall of the second connecting block and the second through groove.

[0014] According to some embodiments of the present invention, in the first unit, the outer periphery of the first base extends outward relative to the first protrusion; in the second unit, the outer periphery of the second protrusion extends outward relative to the second base.

[0015] According to some embodiments of the present invention, a plurality of first alignment holes are provided on the first frame, and all the first alignment holes are arranged sequentially at intervals along the circumference of the first frame; a second alignment hole corresponding to each of the first alignment holes is provided on the second frame, and all the second alignment holes are arranged sequentially at intervals along the circumference of the second frame; when the first frame is arranged on the upper side of the second frame, the first alignment holes are connected to the corresponding second alignment holes, and the encapsulation portion fills all the first alignment holes and all the second alignment holes.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a bottom view of the first frame of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the first frame according to an embodiment of the present utility model;

[0020] Figure 3 This is a bottom view of the second frame according to an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the second frame according to an embodiment of the present utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the combination of the first frame and the second frame in an embodiment of the present utility model;

[0023] Figure 6 This is a cross-sectional schematic diagram of the LED lead frame according to an embodiment of the present invention.

[0024] Figure label:

[0025] First frame 100, first side frame 110, first unit 120, first base 130, first protrusion 131, first clearance groove 140, first connecting rib 150, second connecting rib 160, first through hole 170, second through groove 180, first connecting hole 190;

[0026] Second frame 200, second side frame 210, second unit 220, second base 230, second protrusion 231, second clearance groove 240, third connecting rib 250, fourth connecting rib 260, second through hole 270, first through groove 280, second connecting hole 290;

[0027] Insulation layer 300;

[0028] Plastic sealing section 400. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 6 This utility model provides an LED lead frame, including a first frame 100 and a second frame 200. The first frame 100 has a first border 110 and a plurality of first units 120 located within the first border 110. Each first unit 120 has a first partition and a second partition arranged side by side in a transverse direction. The first partition is provided with a first base 130 connected to the first border 110. The first base 130 has a downwardly protruding first protrusion 131. The second partition has a first clearance groove 140. The second frame 200 has a second border 210 and a plurality of second units 220 located within the second border 210. Each second unit 220 has a third partition and a fourth partition arranged side by side in a transverse direction. The third partition has a second clearance groove 240. The fourth partition is provided with a second base 230 connected to the second border 210. The second base 230 has an upwardly protruding second protrusion 231. The first frame 110 is located on the upper side of the second frame 210, and an insulating layer 300 is provided between the first frame 110 and the second frame 210. In the corresponding first unit 120 and second unit 220, the first protrusion 131 extends downward to be embedded in the second relief groove 240 and is arranged at a distance from the inner peripheral wall of the second relief groove 240. The second protrusion 231 extends upward to be embedded in the first relief groove 140 and is arranged at a distance from the inner peripheral wall of the first relief groove 140.

[0034] By adopting the LED lead frame of this utility model embodiment, the LED lead frame is divided into a first frame 100 and a second frame 200 that are independent of each other. A first base 130 and a first clearance groove 140 are provided in the first unit 120 of the first frame 100, and a second base 230 and a second clearance groove 240 are provided in the second unit 220 of the second frame 200. One of the first base 130 and the second base 230 can be a positive base and the other can be a negative base, so that the first base 130 and the second base 230 can be connected to the positive and negative terminals of the LED and cooperate to power the LED. During assembly, the first frame 100 and the second frame 200 are stacked vertically, such that the first protrusion 131 of the first base 130 extends downward to be embedded in the second relief groove 240, and the second protrusion 231 of the second base 230 extends upward to be embedded in the first relief groove 140. This allows the corresponding first base 130 and second base 230 to be embedded together, so that the corresponding first unit 120 and second unit 220 can form a frame unit on the LED lead frame. Thus, multiple frame units can be formed on the LED lead frame, and the second protrusion 230 of the first base 130 and the second base 230 in each frame unit can cooperate to install and support an LED lamp bead. That is, the first base 130 and the second base 230 in each frame unit can serve as the positive base and the negative base respectively and cooperate to install and support the LED lamp bead. Because the first protrusion 131 is spaced apart from the inner peripheral wall of the second clearance groove 240, and the second protrusion 231 is spaced apart from the inner peripheral wall of the first clearance groove 140, and an insulating layer 300 is provided between the first frame 110 and the second frame 210, the first frame 100 and the second frame 200 can be effectively isolated, thereby electrically separating all the first bases 130 on the first frame 100 and all the second bases 230 on the second frame 200, that is, electrically separating all the positive bases from all the negative bases. Thus, after packaging, each LED bead is installed between the first base 130 and the second base 230 in each unit. At this time, all the LED beads are in parallel and electrically separated. Thus, all the LED beads on the LED lead frame can be tested simultaneously without cutting, which greatly improves the testing efficiency and reduces the testing cost.

[0035] It is understood that in the above structure, both the first frame 100 and the second frame 200 can adopt an etching structure. Specifically, the first clearance groove 140 can be a full etching groove set on the first frame 100, or it can be composed of two half etching grooves set on the upper and lower surfaces of the first frame 100. The first frame 110 and the first base 130 can be formed by etching upward around the outer periphery of each first protrusion 131 from the lower surface of the first frame 100. The etching depth is the thickness of the first protrusion 131. Thus, the required first frame 100 can be obtained, and the processing is simple and convenient. Similarly, the second clearance groove 240 can be a full etching groove provided on the second frame 200, or it can be composed of two half etching grooves provided on the upper and lower surfaces of the second frame 200. The second base 230 and the second protrusion 231 can be formed by etching downward around the outer periphery of each second protrusion 231 from the upper surface of the second frame 200, or the second base 230 can be formed by etching upward around the outer periphery of each second protrusion 231 from the lower surface of the second frame 200. The second frame 210 is formed by etching downward around each second base 230 from the upper surface of the second frame 200. The present invention does not specifically limit the processing steps of the first frame 100 and the second frame 200.

[0036] This allows us to obtain the required first frame 100, which is simple and convenient to process.

[0037] Reference Figure 5 In some embodiments, the insulating layer 300 is a double-sided insulating adhesive, and the first frame 110 and the second frame 210 are bonded together through the insulating layer 300.

[0038] By adopting the above structure, the insulating layer 300 is set as double-sided insulating adhesive, so that the first frame 110 and the second frame 210 can be directly fixed and connected by adhesive. This not only effectively isolates the first frame 110 and the second frame 210, but also facilitates the fixing and connection between the first frame 100, the insulating layer 300 and the second frame 200.

[0039] It is understood that the insulating layer 300 can be set as double-sided insulating adhesive, or as rubber or other insulating structure, and the fixed connection between the insulating layer 300 and the first frame 110 and the second frame 210 can be achieved by fasteners, snap-fit ​​structures or adhesive structures or other connection structures. This utility model does not make specific limitations in this regard.

[0040] Reference Figure 3 In some embodiments, in the corresponding first unit 120 and second unit 220, the lower surface of the first protrusion 131 is flush with the lower surface of the second base 230, and the upper surface of the second protrusion 231 is flush with the upper surface of the first base 130.

[0041] In the specific use of the LED lead frame, the LED beads are installed between the first base 130 and the second base 230. Specifically, the LEDs are installed on the upper surface of the first base 130 and the upper surface of the second protrusion 231. The LED lead frame is then connected to external circuit boards or other electrical components through the lower surface of the second base 230 and the lower surface of the first protrusion 131. Therefore, by adopting the above structure, the lower surface of the first protrusion 131 is flush with the lower surface of the second base 230, and the upper surface of the second protrusion 231 is flush with the upper surface of the first base 130. This ensures the overall flatness of the LED lead frame, facilitating the installation of both the LED beads and the LED lead frame itself.

[0042] Reference Figures 1 to 6 In some embodiments, in the corresponding first unit 120 and second unit 220, the lower surface of the first protrusion 131 and the lower surface of the second protrusion 231 are flush with the lower surface of the second frame 210, and the upper surface of the second protrusion 231 and the upper surface of the second base 230 are flush with the upper surface of the first frame 110.

[0043] By adopting the above structure, the overall flatness of the LED lead frame can be further improved, making the LED lead frame more aesthetically pleasing and facilitating the installation and fixing of LED beads and the LED lead frame.

[0044] Reference Figure 6 In some embodiments, the LED lead frame further includes a molding portion 400, which is partially filled between the inner peripheral walls of the first base 130 and the second relief groove 240, and partially filled between the inner peripheral walls of the second base 230 and the first relief groove 140.

[0045] In the above structure, the molding portion 400 is filled between the inner peripheral walls of the first base 130 and the second relief groove 240, and between the second base 230 and the first relief groove 140. This not only effectively isolates the inner peripheral walls of the first base 130 and the second relief groove 240, and between the second base 230 and the first relief groove 140, thus effectively electrically isolating the first base 130 and the second base 230 within each frame unit, but also makes the connection between the first frame 100 and the second frame 200 more secure and tighter.

[0046] Reference Figures 1 to 6In some embodiments, at least two first units 120 are arranged sequentially along the longitudinal direction to form a group of first longitudinal units. In the first longitudinal unit group, the first bases 130 at both ends are connected to the first frame 110 by first connecting ribs 150. Two adjacent first bases 130 are aligned along the longitudinal direction and connected by second connecting ribs 160. Two adjacent first clearance grooves 140 are aligned along the longitudinal direction and communicate with each other. At least two second units 220 are arranged sequentially along the longitudinal direction to form a group of second longitudinal units. In the second longitudinal unit group, the second bases 230 at both ends are connected to the second frame 210 by third connecting ribs 250. Two adjacent second bases 230 are aligned along the longitudinal direction and connected by fourth connecting ribs 260. Two adjacent second clearance grooves 240 are aligned along the longitudinal direction and communicate with each other.

[0047] By adopting the above structure, multiple first units arranged in the longitudinal direction are combined into a first longitudinal unit group. In the first longitudinal unit group, each first base 130 is connected by a second connecting rib 160, and the end first base 130 is connected to the first frame 110 by a first connecting rib 150. This achieves a stable connection between each first base 130 and the first frame 110. In addition, each first clearance groove 140 is aligned and interconnected in the longitudinal direction, which facilitates the opening and processing of each first clearance groove 140. Similarly, by combining multiple second units arranged in the longitudinal direction into a second longitudinal unit group, each second base 230 is connected by a fourth connecting rib 260, and the end second base 230 is connected to the second frame 210 by a third connecting rib 250. This achieves a stable connection between each second base 230 and the second frame 210. In addition, each second clearance groove 240 is aligned and interconnected in the longitudinal direction, which facilitates the opening and processing of each second clearance groove 240. Furthermore, in the above structure, after the first frame 100 and the second frame 200 are assembled, at least two first bases 130 are aligned in the longitudinal direction, and the corresponding second bases 230 are also aligned in the longitudinal direction. This allows the packaged LED beads to be aligned in the longitudinal direction, which facilitates the cutting and separation of LED beads and allows at least two LED beads in the longitudinal direction to be used as a module.

[0048] Reference Figures 1 to 6In some embodiments, there are at least two sets of first longitudinal unit groups, all of which are arranged side by side in the transverse direction. In the transverse direction, the first base 130 of the first longitudinal unit group located at the end is arranged at a distance from the first frame 110. The two first bases 130 of two adjacent sets of first longitudinal unit groups are respectively disposed on opposite sides of one of the first relief grooves 140 and form the inner walls of the two sides of the first relief groove 140. There are at least two sets of second longitudinal unit groups, all of which are arranged side by side in the transverse direction. In the transverse direction, the second base 230 of the second longitudinal unit group located at the end is arranged at a distance from the first frame 110. The two second bases 230 of two adjacent sets of second longitudinal unit groups are respectively disposed on opposite sides of one of the second relief grooves 240 and form the inner walls of the two sides of the second relief groove 240.

[0049] In the above structure, each group of first longitudinal unit groups is arranged sequentially in the transverse direction, such that the first bases 130 are spaced apart in the transverse direction. This allows the first bases 130 and the first clearance grooves 140 to be arranged alternately in the transverse direction, improving the uniformity of each first unit 120 and facilitating the processing of the first bases 130 and the first clearance grooves 140. The first bases 130 and the first frame 110 of the first longitudinal unit groups located at the ends are also spaced apart, so that the encapsulation part can fill the space between the first bases 130 and the first frame 110 at the ends during encapsulation. This increases the bonding area between the first frame 100 and the encapsulation part, thereby improving the bonding strength between the first frame 100 and the encapsulation part. Similarly, each group of second longitudinal unit groups is arranged sequentially in the transverse direction, such that the second bases 230 are spaced apart in the transverse direction. This allows the second bases 230 and the second clearance grooves 240 to be arranged alternately in the transverse direction, improving the uniformity of each second unit 220 and facilitating the processing of the second bases 230 and the second clearance grooves 240. The second bases 230 and the second frame 210 of the second longitudinal unit groups located at the ends are also spaced apart, so that the encapsulation part can fill the space between the second bases 230 and the second frame 210 at the ends during encapsulation. This increases the bonding area between the second frame 200 and the encapsulation part, thereby improving the bonding strength between the second frame 200 and the encapsulation part. Furthermore, the above structure allows the first base 130 and the second base 230 located at the ends in the lateral direction of the LED lead frame to be electrically separated from the two end frames after packaging. Therefore, when cutting and separating the LED beads, the cutting can be performed from the encapsulation portion 400 between the first base 130 and the first frame 110, or from the encapsulation portion 400 between the second base 230 and the second frame 210, thereby facilitating the separation of each LED bead.

[0050] Reference Figure 1 andFigure 2 In some embodiments, the number of first longitudinal unit groups is two, each group of first longitudinal unit groups includes two first units 120, and the number of second longitudinal unit groups is also two, each group of second longitudinal unit groups includes two second units 220. Of course, the number of first longitudinal unit groups and second longitudinal unit groups can be two, three, four or more, in addition to being two. The number of first units 120 in the first longitudinal unit group and the number of second units in the second longitudinal unit group can be two, three, four or more, in addition to being two. This utility model does not specifically limit this.

[0051] Reference Figure 1 and Figure 2 In some embodiments, the first frame 110 is provided with a first connecting block 170 corresponding to the first longitudinal unit group, and the first connecting rib 150 located at the end of the first longitudinal unit group is connected to the corresponding first connecting block 170. The first connecting block 170 is arranged to protrude downward relative to the first frame 110, and the second frame 210 is provided with a first through groove 280 corresponding to the first connecting block 170. When the first frame 110 is connected to the upper side of the second frame 210, the first connecting block 170 is inserted downward into the first through groove 280, and the plastic sealing part 400 is filled between the inner wall of the first connecting block 170 and the first through groove 280.

[0052] In the above structure, the first connecting block 170 facilitates the connection between the first connecting rib 150 located at the end of the first longitudinal unit group and the first frame 110. Furthermore, by opening the first through groove 280 on the second frame 220, the first connecting block 170 can be repositioned when the first frame 110 and the second frame 120 are joined, which also serves to position the first frame 110 and the second frame 120. In addition, the encapsulation portion 400 fills the space between the inner walls of the first connecting block 170 and the first through groove 280, not only isolating the inner walls of the first connecting block 170 and the first through groove 280 (i.e., isolating the first frame 100 and the second frame 200), but also increasing the bonding area between the first frame 100, the second frame 200, and the encapsulation portion 400, thereby improving the bonding force between the first frame 100, the second frame 200, and the encapsulation portion 400, and further enhancing the structural strength of the LED lead frame.

[0053] Reference Figure 1 and Figure 2In some embodiments, the second frame 210 is provided with a second connecting block 270 corresponding to the second longitudinal unit group. The third connecting rib 250 located at the end of the second longitudinal unit group is connected to the corresponding second connecting block 270. The second connecting block 270 is arranged to protrude upward relative to the second frame 210. The first frame 110 is provided with a second through groove 180 corresponding to the second connecting block 270. When the first frame 110 is connected to the upper side of the second frame 210, the second connecting block 270 is inserted upward into the second through groove 180. The plastic sealing part 400 is filled between the inner walls of the second connecting block 270 and the second through groove 180.

[0054] In the above structure, the second connecting block 270 facilitates the connection between the third connecting rib 250 located at the end of the second longitudinal unit group and the second frame 210. Furthermore, by opening a second through groove 180 on the first frame 110, the second connecting block 270 can be repositioned when the first frame 110 and the second frame 120 are joined, while also serving to position the first frame 110 and the second frame 120. In addition, the molding compound 400 fills the space between the inner walls of the second connecting block 270 and the second through groove 180, not only isolating the inner walls of the second connecting block 270 and the second through groove 180 (i.e., isolating the first frame 100 and the second frame 200), but also increases the bonding area between the first frame 100, the second frame 200, and the molding compound 400, improving the bonding force between the first frame 100, the second frame 200, and the molding compound 400, thereby further enhancing the structural strength of the LED lead frame.

[0055] Reference Figures 1 to 6 In some embodiments, in the first unit 120, the outer periphery of the first base 130 extends outward relative to the first protrusion 131; in the second unit 220, the outer periphery of the second protrusion 231 extends outward relative to the second base 230.

[0056] In the above structure, the upper surface of the first base 130 and the upper surface of the second protrusion 231 can serve as positive and negative bases to support and connect the LED beads. By extending the outer periphery of the first base 130 outward relative to the first protrusion 131 and extending the outer periphery of the second protrusion 231 outward relative to the second base 230, the supporting and connecting area of ​​the first base 130 and the second protrusion 231 for the LED beads can be increased, which facilitates the installation of the LED beads.

[0057] Reference Figure 1 He Rui Figure 2In some embodiments, a plurality of first alignment holes 190 are provided on the first frame 110, and all the first alignment holes 190 are arranged sequentially at intervals along the circumference of the first frame 110; a second alignment hole 290 corresponding to the first alignment holes 190 is provided on the second frame 210, and all the second alignment holes 290 are arranged sequentially at intervals along the circumference of the second frame 210; when the first frame 110 is arranged on the upper side of the second frame 210, the first alignment holes 190 are connected to the corresponding second alignment holes 290, and the molding part 400 fills all the first alignment holes 190 and all the second alignment holes 290.

[0058] In the above structure, the first alignment hole 190 and the second alignment hole 290 facilitate the cutting and alignment of the LED lead frame. Cutting can be performed along either the first alignment hole 190 or the second alignment hole 290, making the cutting of the LED lead frame more convenient and faster. Furthermore, the first alignment hole 190 and the second alignment hole 290 also increase the bonding area between the first frame 100, the second frame 200, and the encapsulation portion 400, improving the bonding strength between the first frame 100 and the second frame 200, thus making the LED lead frame structure more stable.

[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An LED lead frame, characterized in that, include: The first frame (100) has a first border (110) and a plurality of first units (120) located within the first border (110). Each first unit (120) is provided with a first partition and a second partition arranged side by side in the horizontal direction. The first partition is provided with a first base (130) connected to the first border (110). The first base (130) has a first protrusion (131) that protrudes downward. The second partition is provided with a first clearance groove (140). The second frame (200) has a second border (210) and a plurality of second units (220) located within the second border (210). Each second unit (220) is provided with a third partition and a fourth partition arranged side by side in the lateral direction. The third partition is provided with a second clearance groove (240), and the fourth partition is provided with a second base (230) connected to the second border (210). The second base (230) has an upwardly protruding second protrusion (231). The first frame (110) is located on the upper side of the second frame (210), and an insulating layer (300) is provided between the first frame (110) and the second frame (210). In the corresponding first unit (120) and second unit (220), the first protrusion (131) extends downward to be embedded in the second relief groove (240) and is spaced apart from the inner peripheral wall of the second relief groove (240). The second protrusion (231) extends upward to be embedded in the first relief groove (140) and is spaced apart from the inner peripheral wall of the first relief groove (140).

2. The LED lead frame according to claim 1, characterized in that, The insulating layer (300) is a double-sided insulating adhesive, and the first frame (110) and the second frame (210) are bonded together through the insulating layer (300).

3. The LED lead frame according to claim 1, characterized in that, In the corresponding first unit (120) and second unit (220), the lower surface of the first protrusion (131) is flush with the lower surface of the second base (230), and the upper surface of the second protrusion (231) is flush with the upper surface of the first base (130).

4. The LED lead frame according to claim 3, characterized in that, In the corresponding first unit (120) and second unit (220), the lower surface of the first protrusion (131) and the lower surface of the second protrusion (231) are flush with the lower surface of the second frame (210), and the upper surface of the second protrusion (231) and the upper surface of the second base (230) are flush with the upper surface of the first frame (110).

5. The LED lead frame according to claim 1, characterized in that, It also includes a molding compound (400), which is partially filled between the inner peripheral wall of the first base (130) and the second relief groove (240), and partially filled between the inner peripheral wall of the second base (230) and the first relief groove (140).

6. The LED lead frame according to claim 5, characterized in that, At least two first units (120) are arranged sequentially along the longitudinal direction to form a first longitudinal unit group. In the first longitudinal unit group, the first bases (130) at both ends are connected to the first frame (110) through first connecting ribs (150). Two adjacent first bases (130) are aligned along the longitudinal direction and connected through second connecting ribs (160). Two adjacent first clearance grooves (140) are aligned along the longitudinal direction and communicate with each other. At least two second units (220) are arranged sequentially along the longitudinal direction to form a second longitudinal unit group. In the second longitudinal unit group, the second bases (230) at both ends are connected to the second frame (210) by third connecting ribs (250). Two adjacent second bases (230) are aligned along the longitudinal direction and connected by fourth connecting ribs (260). Two adjacent second clearance grooves (240) are aligned along the longitudinal direction and communicate with each other.

7. The LED lead frame according to claim 6, characterized in that, The number of the first longitudinal unit groups is at least two groups, and all the first longitudinal unit groups are arranged side by side along the transverse direction. In the transverse direction, the first base (130) in the first longitudinal unit group located at the end is arranged at intervals with the first frame (110). The two first bases (130) in the two adjacent groups of the first longitudinal unit groups are respectively located on opposite sides of one of the first relief grooves (140) and form the inner walls of the two sides of the first relief groove (140). The number of the second longitudinal unit groups is at least two groups, and all the second longitudinal unit groups are arranged side by side along the transverse direction. In the transverse direction, the second base (230) in the second longitudinal unit group located at the end is arranged at intervals with the first frame (110). The two second bases (230) in the two adjacent groups of the second longitudinal unit groups are respectively located on opposite sides of one of the second relief grooves (240) and form the inner walls of the two sides of the second relief groove (240).

8. The LED lead frame according to claim 6 or 7, characterized in that, The first frame (110) is provided with a first connecting block (170) corresponding to the first longitudinal unit group. The first connecting rib (150) located at the end of the first longitudinal unit group is connected to the corresponding first connecting block (170). The first connecting block (170) is arranged to protrude downward relative to the first frame (110). The second frame (210) is provided with a first through groove (280) corresponding to the first connecting block (170). When the first frame (110) is connected to the upper side of the second frame (210), the first connecting block (170) is inserted downward into the first through groove (280). The plastic sealing part (400) fills the space between the first connecting block (170) and the inner wall of the first through groove (280). The second frame (210) is provided with a second connecting block (270) corresponding to the second longitudinal unit group. The third connecting rib (250) located at the end of the second longitudinal unit group is connected to the corresponding second connecting block (270). The second connecting block (270) is arranged to protrude upward relative to the second frame (210). The first frame (110) is provided with a second through groove (180) corresponding to the second connecting block (270). When the first frame (110) is connected to the upper side of the second frame (210), the second connecting block (270) is inserted upward into the second through groove (180). The plastic sealing part (400) is filled between the inner wall of the second connecting block (270) and the second through groove (180).

9. The LED lead frame according to claim 6, characterized in that, In the first unit (120), the outer periphery of the first base (130) extends outward relative to the first protrusion (131); In the second unit (220), the outer periphery of the second protrusion (231) extends outward relative to the second base (230).

10. The LED lead frame according to claim 5, characterized in that, The first frame (110) is provided with a plurality of first alignment holes (190), and all the first alignment holes (190) are arranged sequentially at intervals along the circumference of the first frame (110). The second frame (210) is provided with second alignment holes (290) that correspond one-to-one with the first alignment holes (190), and all the second alignment holes (290) are arranged sequentially at intervals along the circumference of the second frame (210). When the first frame (110) is arranged on the upper side of the second frame (210), the first alignment hole (190) is connected to the corresponding second alignment hole (290), and the encapsulation part (400) fills all the first alignment holes (190) and all the second alignment holes (290).

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