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LED lamp circuit board for integrating light source and power supply and manufacture method thereof

A technology for LED lamps and manufacturing methods, which is applied in the field of LED lamp circuit boards and its manufacturing, and can solve the problems that the width cannot meet the horizontal placement of light source boards, the low product qualification rate, and the short length of the placement machine, so as to achieve fast and simple production and high product quality The effect of high pass rate and high production efficiency

Inactive Publication Date: 2010-08-04
NANKER GUANGZHOU SEMICON MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] LED has the advantages of high luminous efficiency, power saving and long life, and its application is becoming more and more extensive. At present, there are LED lamp tubes used to replace the existing T5, T8 and other fluorescent lamps. This LED lamp is in the shape of a slender rod as a whole. , so the light source board used to install the LED is also in the shape of a long strip. The length of the LED light source board in the commonly used LED lamp tube can reach 1.2m at present, but the length of the placement machine used for bonding and packaging the LED is relatively short, and its width It also cannot meet the requirements of horizontal placement of the light source board, so using a placement machine to mount a long light source board will cause inconvenience in production, low production efficiency, and low product qualification rate

Method used

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  • LED lamp circuit board for integrating light source and power supply and manufacture method thereof
  • LED lamp circuit board for integrating light source and power supply and manufacture method thereof
  • LED lamp circuit board for integrating light source and power supply and manufacture method thereof

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Experimental program
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Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 5 , Figure 7 , Figure 8As shown, the LED lamp circuit board integrating light source and power supply in this embodiment includes two module unit boards 1, the module unit boards 1 are fixedly connected, and the front side of the module unit board 1 is provided with a The LED chip 2 and the metal layer 13 that dissipates heat and forms an electrical connection between the LED chips 2, and the back side of the module unit board 1 is provided with a power supply line 14 made of conductive metal for welding circuit elements and forming a circuit. The power lines 14 of the module unit board 1 that are fixedly connected are electrically connected by jumpers, and the two ends of the module unit board 1 are respectively provided with grooves 11 and bumps 12, and the grooves 11 and The size and shape of the bump 12 are compatible, the groove 11 and the bump 12 are dovetail-shaped, and the connection and fixing are reliable. The module unit board ...

Embodiment 2

[0045] Such as Figure 1 to Figure 4 , Figure 6 , Figure 7 , Figure 9 ~ Figure 11 As shown, this embodiment is the same as the wiring of the metal layer 13 and the power line 14 of the modular unit board 1 in Embodiment 1, that is, the bare board is the same. In addition, the LED on the front side of the modular unit board 1 The number and arrangement of the chips 2 are also exactly the same, the difference is that in this embodiment, the two LED chips 2 on the module unit board 1 are connected in parallel to form a group, and the two groups are connected in parallel again, that is, there are four LED chips 2 in total. The LED chips 2 are connected in parallel, and each channel has 48 LED chips 2. The rated power of this embodiment is also 12W, and it is applied to a 110V AC power supply as lighting. Correspondingly, there are two groups of four LED chips in this embodiment. The constant current source MOS devices Q1, Q2 are respectively connected in series with 48 LED c...

Embodiment 3

[0049] Such as Figure 12 As shown, the difference between this embodiment and Embodiment 1 is: in this embodiment, two ends of each of the modular unit boards 1 are respectively provided with two of the grooves 11 and two of the protrusions 12 , the groove 11 and the protrusion 12 are both circular, and the connection and fixing are reliable.

[0050] The remaining features of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention discloses an LED lamp circuit board for integrating a light source and a power supply with the advantages of reliable connection, fast and simple production, high production efficiency and high product qualification ratio and a manufacture method thereof. The LED lamp circuit board comprises at least two module unit boards (1), wherein every two module unit boards (1) are fixedly connection, a metal layer (13) used for fixing LED chips (2) and forming electric connection between every two LED chips (2) is arranged on the front surface of each module unit board (1), a power line (14) which is welded with a circuit element to form a circuit is arranged on the back surface of each module unit board (1), and every two power lines (14) of two connected module unit boards (1) are electrically connected through a jumper wire phase. The manufacture method comprises the following steps of: manufacturing prefabricated circuit boards into a connected circuit board, patching the whole connected circuit board, carrying out wire bond, coating fluorescent powder and silica gel, welding the circuit element after curing, cutting each module unit board (1) into independent parts, connecting the independent parts through connecting parts and electrically connecting the power lines (14) through jumper wires. The invention can be applied to a light emitting diode illumination field.

Description

technical field [0001] The invention relates to an LED lamp circuit board integrating a light source and a power supply and a manufacturing method thereof. Background technique [0002] LED has the advantages of high luminous efficiency, power saving and long life, and its application is becoming more and more extensive. At present, there are LED lamp tubes used to replace the existing T5, T8 and other fluorescent lamps. This LED lamp is in the shape of a slender rod as a whole. , so the light source board used to install the LED is also in the shape of a long strip. The length of the LED light source board in the commonly used LED lamp tube can reach 1.2m at present, but the length of the placement machine used for bonding and packaging the LED is relatively short, and its width It also cannot meet the requirements of horizontal placement of the light source board, so using a placement machine to mount a longer light source board will cause inconvenience in production, low ...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V23/00F21V19/00F21Y101/02F21V29/507
Inventor 吴俊纬
Owner NANKER GUANGZHOU SEMICON MFG
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