LED lamp bead with reflection cup

[0010] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0011] reference figure 2 , image 3 with Figure 4. An LED lamp bead with a reflective cup includes a bracket 1, an LED chip 2 mounted in the bracket 1, and a resin 3 covering the LED chip 2. The bracket 1 includes an injection-molded cup and bowl 4 and positive and negative electrode pads 5a/5b arranged in the cup and bowl 4. The bowl 4 includes a bottom wall 41, and a side wall 42 in a flared shape is enclosed around the bottom wall 41. A reflective part 51 extending along the side wall 42 and attached to the side wall 42 is provided on either or one of the positive and negative electrode pads 5a/5b. When one of the positive and negative electrode pads 5a/5b is provided with a reflective portion 51, the reflective portion 51 constitutes a half-horn-shaped reflector cup 50 structure; when both the positive and negative electrode pads 5a/5b are provided with reflective portions 51, The two reflective parts 51 are combined to form a complete horn-shaped reflective cup 50 structure. In order to simplify the manufacturing process, the positive and negative electrode pads 5a/5b and the reflective portion 51 can be continuously stamped or bent into a conjoined structure from metal plates with reflective effects. Of course, the positive and negative electrode pads 5a/5b and the light-reflecting portion 51 can also be made of other conductive materials, but at least the surface has a light-reflecting effect. Specifically, the surface can be realized by coating materials or electroplating. The LED chip 2 is fixed on the positive electrode pad 5 a or the bottom wall 41 in the cup 4 with resin, and the best position is the center of the reflector cup 50. The positive and negative electrodes of the LED chip 2 are electrically connected to the positive and negative electrode pads 5a/5b through welding metal wires 6 respectively. The present invention can be applied to white LED lamp beads and color LED lamp beads. When the LED lamp beads are white LED lamp beads, the LED chip 2 is a single or multiple blue LED chips, and the resin 3 is doped There is yellow phosphor; when the LED lamp beads are colored LED lamp beads, the LED chip 2 may include multiple LED chips 2 of different colors.

[0012] Since the present invention is based on the original positive and negative electrode pads 5a/5b, the reflective part 51 extending along the side wall 42 of the cup 4 and attached to the side wall 42 is formed by bending the metal sheet together, and the LED chip 2 The light irradiated to the inner wall 42 of the bowl 4 can be reflected by the reflective part 51, which increases the light extraction rate of the LED lamp beads, increases the heat sink and heat dissipation area, and reduces the temperature of the LED lamp beads without increasing the hardware cost. , Effectively extend the life of LED lamp beads.

[0013] The above-mentioned embodiments only express several implementation modes of the present invention, and their description is more specific and detailed, but they should not be interpreted as a limitation on the patent scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.