Circuit board, LED (Light Emitting Diode) light emitting module, LED light emitting device and lamp

Abstract

The invention discloses a circuit board, an LED (Light Emitting Diode) light emitting module, an LED light emitting device and a lamp. The circuit board (20) which is applied to an LED light emitting assembly (21) comprises a conductive connection portion; the upper side of the conductive connection portion is used for placing the LED light emitting assembly (21); the circuit board (20) also comprises electric connection portions (25, 27) which are arranged on the lower side of the conductive connection portion, wherein the lower side is opposite to the upper side; the electric connection portions (25, 27) are electrically connected with at least one conductive welding plate of the LED light emitting assembly (21) through the conductive connection portion; the electric connection portions can be electrically connected with conductive portions (3111, 3113) which are located on a second circuit board (31) directly when the circuit board (20) is fixed on the second circuit board (31). According to the circuit board, the LED light emitting module, the LED light emitting device and the lamp, the connection of the LED light emitting assembly can be achieved in a simple mode.

Description

technical field [0001] The invention relates to a circuit board, an LED light emitting module, an LED light emitting device and a lamp. Background technique [0002] As a new light source, LED lamps have been widely used due to their advantages of high efficiency, pure light color, low energy consumption, long life, reliability and durability, no pollution, and flexible control. [0003] In some applications, people need slim linear lamps. In order to realize this lamp, people usually form such as figure 1 A plurality of individual LED light-emitting modules 10 are shown, and then a plurality of LED light-emitting modules are assembled on the elongated driving circuit board assembly, thereby forming a figure 2 The LED lighting device 100 shown. [0004] refer to figure 1 , the traditional LED lighting module 10 has a metal core printed circuit board (MCPCB) 19 and an LED lighting assembly 11 mounted on the circuit board 19, and the LED lighting module 10 is also provide...

AI Technical Summary

Problems solved by technology

[0008] 1. People need to distinguish between the positive pole and the negative pole to be joined when connecting the electrical connecting wires, and the user is likely to be confused during this process, so that the position of the circuit board is reversed during assembly, thereby forming a wrong connection;

[0009] 2. It is necessary to connect electrical connecting wires to complete the circuit, which makes the connection of the circuit very inconvenient;

[0010] 3. There may be many reliability problems in the solder joints, for example, the solder joints are easy to fall off;

[0011] 4. In the process of fastening the LED light-emitting module, many screws are needed to fix it, and the material cost and labor cost are high;

[0012] 5. When one of the LED light-emitting modules on the circuit board fails, the electrical connection wires and screws need to be removed from the LED light-emitting module, and the electrical connection wires and fastening screws need to be re-welded to the new LED light-emitting module. The process is very complicated;

[0013] 6. The appearance of the entire product is cluttered due to the need for many electrical connection wires and screws

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