[0028] The following descriptions are only preferred embodiments of the present invention, and do not limit the scope of the present invention.
[0029] Examples, see attached figure 1 , A reflector cup for secondary light distribution, including a reflector cup body 1 with a reflector cavity 101, and a positioning and mounting portion 2 arranged on the reflector cup body 1 for positioning the reflector cup body 1 and the circuit board and settings A fixed connection part 3 on the reflective cup body 1 for fixedly connecting the reflective cup body 1 and the circuit board; the reflective cup body is generally a cylinder, and the axial section of the reflective cavity 101 is an inverted truncated cone shape , The surface is smooth, the positioning installation part 2 includes at least two vertical positioning parts 201 and a horizontal positioning part 202.
[0030] The vertical positioning part 201 includes positioning pins or positioning blocks. The positioning pins can be cylindrical pins, conical pins, diamond-shaped pins, etc. The circuit board (aluminum substrate) is provided with positioning holes corresponding to the position for easy installation, so that the reflective cup body and the circuit The board can be installed quickly and accurately, and the positioning block can adopt a square, polygonal or irregular shape; when the circuit board and the reflective cup body are connected, it is necessary to ensure that the reflective cup body and the circuit board are perpendicular. For this, we set The horizontal positioning portion 202 includes at least two flat surfaces protruding from the bottom surface of the reflective cup body 1, and protruding from the bottom surface of the reflective cup body 1 by 0.05-0.20mm, generally preferably 0.1mm ; In terms of quantity, it can also be three, four, five, six, etc. The quantity is selected according to actual needs and is generally set evenly.
[0031] After the reflector body and the circuit board are positioned, they need to be fixed together. The traditional fixing method is screw fixing, and screw fixing, the torque value of the screw is difficult to be the same, and the circuit board is relatively soft and has insufficient structural strength High, the different torque values between the screws will cause the reflector cup and the circuit board to be non-vertical. In order to ensure that the irradiation is far enough, the reflector cups on the circuit board need to be parallel to each other, that is to say, each reflector cup body It must be perpendicular to the circuit board, so as not to affect the collection of light emitted by the LED lamp beads after passing through the reflector body. For this reason, we changed the traditional screw fixing connection method and fixed it with glue. The fixed connection part 3 includes at least Two glued surfaces, the glued surface is located above the horizontal positioning portion 202 and there is a 0.05-0.2 height difference with the horizontal positioning portion 202, the reason why the glued surface is located above the horizontal positioning portion, and horizontal positioning The height difference of the part is to avoid the influence of the glue on the positioning, because if the height is the same, when the glue is applied, the uneven thickness of the glue will affect the verticality of the reflector body and the circuit board, and our setting , Not only speeds up the application of glue, but also avoids the adverse effects caused by the thickness of the glue.
[0032] Furthermore, the bottom surface of the reflective cup body 1 is provided with a cavity 102. The cavity 102 is an annular cavity having a top surface, an outer side surface, and an inner side surface, and an inwardly extending rubber coating plate is provided on the outer side surface. 104, and the glue-coated surface is set on the glue-coated sheet 104, the thickness of the glue-coated sheet is between 0.5-1mm, the length is between 8-10mm, the width is 2-5mm, and the ratio of thickness to length is 1. :20-1:10; In this embodiment, the glue-coating plate is fan-shaped, and the glue-coating plate 104 is provided with glue overflow holes 105 communicating with the glue surface. The glue overflow holes 105 are through holes. It can be round hole, polygon hole, etc., the number is 2, 3, 4, 5, 6, 7, 8, etc. The existence of the overflow hole 105 can overflow the excess glue on the glued surface to avoid the thickness of the glue It affects the positioning of the reflective cup body and the circuit board. Furthermore, the rubber-coated plate 104 is an inclined plate, which extends inwardly from the outer side of the concave hole and extends upward at the same time, and forms an inclined angle with the horizontal positioning portion 202 , The inclination angle is 0.05-0.5°, of which 0.05° is the best, because after the glue dries, there is a downward pull force on the rubber-coated plate, in order to avoid the positioning of the reflector and the circuit board due to the deformation of the rubber-coated plate Influence, we let the rubber-coated board tilt upward to eliminate the adverse effects of the deformation of the rubber-coated board due to the drying of the glue.
[0033] The vertical positioning portion 201 is arranged on the glued surface close to the horizontal positioning portion 202. In this embodiment, the vertical positioning portion 201 adopts a positioning pin, which is arranged on the glued surface, and Close to the positioning surface, the positioning surface is arc-shaped, and it is adjacent to the glued surface, and there is a height difference between the positioning surface and the glued surface. The area ratio of the positioning surface to the glued surface ranges from 1:6 to 1:4, taking 1:5 as Good, to achieve the perfect combination of positioning and fixing.
[0034] The bottom surface 103 of the reflective cavity 101 is a flat surface, which is flush with the bottom surface of the reflective cup body 1. The reflective cavity 101 is used for secondary light distribution, so the surface is required, and the bottom edge is Due to the influence of processing accuracy, technology, equipment, etc., the surface is flawed, and we make the bottom surface of the reflective cavity 101 and the bottom surface of the reflective cup 1 flush, then the LED lamp beads will extend into the reflective cavity The part inside 101 makes the light emitted avoid the flawed part of the reflective cavity.
[0035] In order to supplement and fix the connection between the reflective cup body and the circuit board with screws when needed, the reflective cup body 1 is provided with a connecting seat 106 provided with a mounting hole 107, and the bottom surface of the connecting seat 106 is provided with two concave holes 108. The two concave holes have a diameter of 2mm and a depth of 0.25mm. Glue can be placed to play the role of bonding.
[0036] The above description is only an explanation of the present invention, so that those of ordinary skill in the art can fully implement the solution, but it is not a limitation of the present invention. After reading this specification, those skilled in the art can make no creativity in this embodiment as needed. Contributed changes, these are not creative changes. However, as long as the invention is within the scope of the claims, it is protected by the patent law.
