A double-cup three-primary-color display LED patch bracket

Abstract

The present invention discloses a double-cup three-primary-color display LED patch bracket, comprising a metal base, the metal base being divided into a plurality of solder pads by a plastic spacer tape, for connecting an LED chip group via bonding wires, and each solder pad having a solder foot at the bottom; the top of the metal base being connected to an upper plastic bracket by heat-melting the plastic spacer tape, and the bottom being connected to a lower plastic bracket by heat-melting the plastic spacer tape. The upper and lower plastic brackets of the present invention are heat-melted to the plastic spacer tape on the metal base, and the solder feet are hooked into first and second hook grooves on the lower plastic bracket, making the structure of the LED patch bracket more secure and less prone to separation; by arranging two square cups on the same metal base, the packaging efficiency is improved and the cost is saved, and a smaller package can be achieved compared to other traditional independent devices.

Description

Technical Field

[0001] The present invention relates to the technical field of LED patch bracket structures, and in particular to a double-cup three-primary-color display LED patch bracket. Background Art

[0002] In existing RGB (three primary colors) LED chip holders, the upper plastic holder consists of a single plastic square cup, resulting in a large gap between the two cups, which reduces the display resolution of the LED display. Furthermore, existing LED chip holders typically consist of a metal base and a plastic body molded onto the metal base. Due to the different materials, the connection between the plastic body and the metal base is not strong and can easily separate. Furthermore, the pure metal base makes the LED chip holder expensive. Summary of the Invention

[0003] In order to solve the technical problems existing in the above-mentioned existing LED patch brackets, the present invention provides a double-cup three-primary color display LED patch bracket.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A double-cup three-primary-color display LED patch bracket includes a metal base, which is divided into a plurality of pads by plastic spacers for connecting to an LED chipset via bonding wires, and each pad has a solder foot at the bottom. The top of the metal base is connected to an upper plastic bracket by heat-melting the plastic spacers, and the bottom is connected to a lower plastic bracket by heat-melting the plastic spacers. The upper plastic bracket is provided with a first cup-shaped hole and a second cup-shaped hole along its axis, and each of the first and second cup-shaped holes contains an LED chipset for focusing and reflecting the light generated by the LED chipset.

[0006] The pads are divided into two red negative pads, two red, green and blue positive pads, two green negative pads and two blue negative pads, and are divided into two groups consisting of one red negative pad, one red, green and blue positive pad, one green negative pad and one blue negative pad, and are located under the first cup-shaped hole and the second cup-shaped hole respectively;

[0007] The LED chipset consists of a red LED chip, a green LED chip and a blue LED chip; one end of the red LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the red negative electrode pad through a bonding wire; one end of the green LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the green negative electrode pad through a bonding wire; one end of the blue LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the blue negative electrode pad through a bonding wire.

[0008] Preferably, the shapes of the two red negative electrode pads, the two red, green and blue positive electrode pads, the two green negative electrode pads and the two blue negative electrode pads are all different. The difference is that each pad is provided with one or more grooves of different shapes, so that the connection between the pad and the plastic spacer is more secure and not easy to separate.

[0009] Preferably, the red LED chip, the green LED chip and the blue LED chip are distributed in a straight line, which reduces the difficulty of soldering.

[0010] Preferably, the upper plastic bracket is symmetrically provided with identification grooves on both sides of the end portion close to the first cup-shaped hole, which provide reference points for the mounting process of the LED patch bracket.

[0011] Preferably, the first cup-shaped hole and the second cup-shaped hole are both trapezoidal holes that are wide at the top and narrow at the bottom, and the angle α between the two opposite sides is 10-12°.

[0012] Preferably, the sides of the upper plastic bracket and the lower plastic bracket are both provided with a draft angle, and the angle of the draft angle is 5-7°.

[0013] Preferably, the welding feet are symmetrically distributed on both sides of the lower plastic bracket and are hook-shaped, firmly adhering to the lower plastic bracket to prevent the welding feet from being easily touched by foreign objects and damaged.

[0014] Preferably, both ends of the lower plastic bracket are provided with end bosses, a middle boss is provided in the middle, and a first hook groove is provided on the end boss, and a second hook groove is provided between the end boss and the middle boss. The welding foot is buckled with the first hook groove and the second hook groove, which makes it convenient for the welding foot to hook and fit the lower plastic bracket.

[0015] Preferably, an elliptical glue inlet hole is provided in the middle of the bottom of the lower plastic bracket to facilitate injection molding of the upper plastic bracket and the lower plastic bracket.

[0016] Preferably, the surface of the upper plastic bracket is matte treated to avoid reflection on its surface when light is emitted, causing excessive brightness and affecting the display.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The upper and lower plastic brackets of the present invention are hot-melt connected to the plastic spacer tape on the metal base, making the structure of the LED patch bracket more solid and not easy to separate; and the hook-shaped welding feet hook the first hook groove and the second hook groove on the lower plastic bracket, and the welding feet are firmly attached to the lower plastic bracket to prevent the welding feet from being easily touched by foreign objects and damaged.

[0019] 2. The present invention improves packaging efficiency and saves costs by placing two square cups on the same metal base. Compared with other traditional independent devices, the distance between the two LED chip groups can be shortened, thereby improving the resolution of the LED display.

[0020] 3. The present invention divides the solder pads into two groups and arranges them in two square cups, and the LED chip group in each square cup is three primary colors (i.e. red, green and blue), further improving the display effect of the LED display. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the back three-dimensional structure of an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the upper plastic bracket in an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the back three-dimensional structure of the lower plastic bracket in an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the metal base in an embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the top view of the metal base in an embodiment of the present invention;

[0027] Figure 7 for Figure 1 Schematic diagram of the top view structure;

[0028] Figure 8 for Figure 7 Schematic diagram of the upward-looking structure.

[0029] In the figure: 1. Upper plastic bracket, 101. First cup-shaped hole, 102. Second cup-shaped hole, 103. Marking groove, 2. Metal base, 201. Solder foot, 202. Plastic spacer, 203. Red negative electrode pad, 204. Red, green and blue positive electrode pads, 205. Green negative electrode pad, 206. Blue negative electrode pad, 3. Lower plastic bracket, 301. End boss, 302. Middle boss, 303. Glue inlet hole, 304. First hook groove, 305. Second hook groove, 4. Red LED chip, 5. Green LED chip, 6. Blue LED chip. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1

[0033] like Figures 1 to 8 As shown, the embodiment of the present invention includes a metal base 2, which is divided into a plurality of pads by a plastic spacer tape 202 for connecting an LED chip group via bonding wires, and a solder foot 201 is provided at the bottom of each pad. The top of the metal base 2 is connected to an upper plastic bracket 1 by heat-melting the plastic spacer tape 202, and the bottom is connected to a lower plastic bracket 3 by heat-melting the plastic spacer tape 202. The upper plastic bracket 1 is provided with a first cup-shaped hole 101 and a second cup-shaped hole 102 along its axis, and each of the first cup-shaped hole 101 and the second cup-shaped hole 102 contains an LED chip group for focusing and reflecting the light generated by the LED chip group.

[0034] The welding legs 201 are symmetrically distributed on both sides of the lower plastic bracket 3 and are hook-shaped. End bosses 301 are provided at both ends of the lower plastic bracket 3, and a middle boss 302 is provided in the middle. A first hook groove 304 is provided on the end boss 301, and a second hook groove 305 is provided between the end boss 301 and the middle boss 302. The welding legs 201 are buckled with the first hook groove 304 and the second hook groove 305, making it easy for the welding legs 201 to hook and fit the lower plastic bracket 3, so that the welding legs 201 are firmly attached to the lower plastic bracket 3, preventing the welding legs 201 from being easily touched by foreign objects and damaged;

[0035] The pads include two red negative pads 203, two red, green and blue positive pads 204, two green negative pads 205 and two blue negative pads 206, and are divided into two groups, each consisting of one red negative pad 203, one red, green and blue positive pad 204, one green negative pad 205 and one blue negative pad 206, and are located below the first cup-shaped hole 101 and the second cup-shaped hole 102 respectively;

[0036] The LED chipset consists of a red LED chip 4, a green LED chip 5 and a blue LED chip 6; one end of the red LED chip 4 is connected to the red, green and blue positive electrode pads 204 through a bonding wire, and the other end is connected to the red cathode pad 203 through a bonding wire; one end of the green LED chip 5 is connected to the red, green and blue positive electrode pads 204 through a bonding wire, and the other end is connected to the green cathode 205 pad through a bonding wire; one end of the blue LED chip 6 is connected to the red, green and blue positive electrode pads 204 through a bonding wire, and the other end is connected to the blue cathode pad 206 through a bonding wire; the red LED chip 4, the green LED chip 5 and the blue LED chip 6 are distributed in a straight line, which reduces the difficulty of soldering.

[0037] According to the LED patch bracket of the embodiment of the present invention, the upper plastic bracket 1 and the lower plastic bracket 3 are hot-melt connected to the plastic spacer band 202 on the metal base 2, and the welding foot 201 is hooked in the first hook groove 304 and the second hook groove 305 on the lower plastic bracket 3, so that the structure of the LED patch bracket is more solid and not easy to separate; by arranging the two square cups on the same metal base 2, the packaging efficiency is improved and the cost is saved. Compared with other traditional independent devices with a spacing between the two square cups of more than 1.45 mm, the present invention can make the spacing between the two square cups about 1.25 mm, which can shorten the spacing between the two LED chip groups, and thus improve the resolution of the LED display.

[0038] Example 2

[0039] Based on Example 1, the first cup-shaped hole 101 and the second cup-shaped hole 102 are both trapezoidal holes, wider at the top and narrower at the bottom, with an angle α between the two opposing sides of 10°. The sides of the upper and lower plastic brackets are both provided with a draft angle of 6°, facilitating demolding of the upper and lower plastic brackets after injection molding. The wall thickness of the upper plastic bracket is also maintained, preventing it from being too thin and easily damaged, thereby extending its service life. The surface of the upper plastic bracket 1 is matte-finished to prevent reflections from the surface when light is emitted, resulting in excessive brightness and affecting the display effect.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A double-cup three-primary-color display LED patch bracket, characterized by: The metal base comprises a plurality of pads separated by a plastic spacer tape, which are used to connect the LED chipset via bonding wires, and each pad has a solder foot at the bottom. The top of the metal base is connected to an upper plastic bracket by heat-melting the plastic spacer tape, and the bottom is connected to a lower plastic bracket by heat-melting the plastic spacer tape. The upper plastic bracket is provided with a first cup-shaped hole and a second cup-shaped hole along the axis, and the first cup-shaped hole and the second cup-shaped hole each contain an LED chipset, which is used to focus and reflect the light generated by the LED chipset. The pad area is divided into two red negative pads, two red, green and blue positive pads, two green negative pads and two blue negative pads, and each group consists of one red negative pad, one red, green and blue positive pad, one green negative pad and one blue negative pad, and is located under the first cup-shaped hole and the second cup-shaped hole respectively; The LED chipset consists of a red LED chip, a green LED chip and a blue LED chip; one end of the red LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the red negative electrode pad through a bonding wire; one end of the green LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the green negative electrode pad through a bonding wire; one end of the blue LED chip is connected to the red, green and blue positive electrode pads through a bonding wire, and the other end is connected to the blue negative electrode pad through a bonding wire.

2. The double-cup three-primary-color display LED chip bracket according to claim 1, characterized in that: The shapes of the two red negative electrode pads, the two red, green and blue positive electrode pads, the two green negative electrode pads and the two blue negative electrode pads are all different. The difference is that each pad is provided with one or more grooves of different shapes, making the connection between the pad and the plastic spacer tape more secure and not easy to separate.

3. The double-cup three-primary-color display LED patch bracket according to claim 2, characterized in that: The red LED chip, the green LED chip and the blue LED chip are distributed in a straight line, which reduces the difficulty of soldering.

4. A double-cup three-primary-color display LED patch bracket according to claim 1 or 3, characterized in that: The upper plastic bracket is symmetrically provided with marking grooves on both sides of the end portion close to the first cup-shaped hole, which provide reference points for the mounting process of the LED patch bracket.

5. The double-cup three-primary-color display LED chip bracket according to claim 4, characterized in that: The first cup-shaped hole and the second cup-shaped hole are both trapezoidal holes that are wider at the top and narrower at the bottom, and the angle α between the two opposite sides is 10-12°.

6. The double-cup three-primary-color display LED chip bracket according to claim 5, characterized in that: The sides of the upper plastic bracket and the lower plastic bracket are both provided with draft angles, and the draft angles are 5-7°.

7. The double-cup three-primary-color display LED chip bracket according to claim 6, characterized in that: The welding feet are symmetrically distributed on both sides of the lower plastic bracket and are hook-shaped, firmly adhering to the lower plastic bracket to prevent the welding feet from being easily touched by foreign objects and damaged.

8. The double-cup three-primary-color display LED chip bracket according to claim 7, characterized in that: Both ends of the lower plastic bracket are provided with end bosses, a middle boss is provided in the middle, and a first hook groove is provided on the end bosses, and a second hook groove is provided between the end bosses and the middle bosses. The welding feet are buckled with the first hook groove and the second hook groove, making it convenient for the welding feet to hook and fit the lower plastic bracket.

9. The double-cup three-primary-color display LED chip bracket according to claim 8, characterized in that: An elliptical glue inlet hole is provided in the middle of the bottom of the lower plastic bracket to facilitate injection molding of the upper plastic bracket and the lower plastic bracket.

10. The double-cup three-primary-color display LED chip bracket according to claim 9, characterized in that: The surface of the upper plastic bracket is matte-treated to prevent light from being reflected on its surface, causing excessive brightness and affecting the display.

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