LED straight lamp

Abstract

The invention provides an LED straight lamp.The LED straight lamp comprises a lamp tube and a lamp cap arranged outside the tail end region of the lamp tube.The lamp cap comprises an insulating tube, a magnetic conductive metal part and hot melt glue.The tail end region of the lamp tube is sleeved with the insulating tube.The magnetic conductive metal part is fixedly arranged on the inner circumferential face of the insulating tube.The inner surface of the magnetic conductive metal part is coated with the hot melt glue, and the hot melt glue adheres to the outer circumferential face of the lamp tube.According to the LED straight lamp, the portion between the inner surface of the lamp cap and the outer surface of the end of the lamp tube is filled with the hot melt glue after the hot melt glue is heated and expanded through external heating equipment.Through cooperation of the heating equipment (an induction coil) outside the lamp cap and the magnetic conductive metal part, the hot melt glue is heated and expanded so that the lamp cap can be fixed to the lamp tube, the induction coil can also be used in cooperation with a power amplification unit, thus the power of an alternating current can be amplified by one to two times, the induction coil and the insulating tube are coaxial, and therefore energy transfer is uniform.

Description

[0001] The application of the present invention is a divisional application submitted to the China Patent Office on September 25, 2015, with the application number 201510621762.8 and the invention name "LED straight tube lamp". [0002] This application claims the priority of the Chinese patent application submitted to China Patent Office on September 28, 2014, with application number 201410507660.9 and title of invention "A LED Fluorescent Lamp", the entire content of which is incorporated in this application by reference. [0003] This application claims the priority of the Chinese patent application with the application number 201410508899.8 and the title of the invention "a method for solidifying welding paste powder" submitted to the China Patent Office on September 28, 2014, the entire contents of which are incorporated in this application by reference. [0004] This application claims the priority of the Chinese patent application with the application number 201410623355.6...

AI Technical Summary

Problems solved by technology

[0018] First, the circuit board is generally a rigid board. When the lamp tube is broken, especially when it is partially broken, the entire LED straight tube lamp is still in a straight tube state. Users will mistakenly think that the lamp tube can still be used, so they can go Installation may easily lead to leakage and electric shock accidents

[0019] Second, in the existing LED straight tube lamps, metal wires are generally used to achieve electrical connection between the rigid circuit board and the lamp cap through wire bonding. During the manufacture, transportation and use of LED straight tube lamps, the metal wires It is easy to be damaged or even broken due to moving, making the LED straight tube lamp unusable

[0020] Third, in the existing LED straight tube lamps, hot melt adhesive or silica gel is usually used for bonding between the lamp cap and the lamp tube. Glue will affect the appearance and cause shading problems; if you want to remove excess glue, you need to use a lot of manual wiping in the manufacturing process, causing production obstacles and low efficiency

In addition, the poor heat dissipation of the power supply components in the lamp cap will easily lead to a high temperature environment in the lamp cap, thereby reducing the service life of the hot melt adhesive and reducing the adhesion between the lamp tube and the lamp cap, resulting in a decrease in the reliability of the LED straight tube lamp

[0021] Fourth, the lamp tube in the prior art is generally a uniform cylinder, and the lamp cap is set outside the lamp tube and bonded with the lamp tube by glue. Therefore, the outer diameter of the lamp cap is larger than that of the lamp tube

For this part, the U.S. patent application with the publication number US20100103673A discloses a LED straight tube lamp, the lamp tube is a glass lamp tube, and the lamp head is inserted into the glass lamp tube, so that the two ends of the glass lamp tube bear internal stress And it is easier to break when subjected to external force at both ends

This will lead to product defects and quality problems

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