WO2016070824A1

WO2016070824A1 - Led straight lamp

Info

Publication number: WO2016070824A1
Application number: PCT/CN2015/093880
Authority: WO
Inventors: 江涛; 颜荣毅
Original assignee: 嘉兴山蒲照明电器有限公司
Priority date: 2014-11-06
Filing date: 2015-11-05
Publication date: 2016-05-12
Also published as: CN105782861A; CN205261404U; CN105782861B

Abstract

An LED straight lamp comprises: a glass tube (1) and a lamp holder (3) arranged at one end of the glass tube (1); a power supply (5), comprising a rigid circuit board (25) arranged in the lamp holder (3); and a lamp board (2), arranged in the glass tube (1), wherein the glass tube (1) and the lamp holder (3) are fixed together with high thermal conductive silica gel. The thermal conductivity of the high thermal conductive silica gel is higher than or equal to 0.7w/m·k. At least a light source (202) is arranged on the lamp board (2) and electrically connected with the power supply (5) via the lamp board (2). The lamp board (2) comprises a flexible circuit board having a length greater than that of the rigid circuit board (25). The rigid circuit board (25) and the flexible circuit board are joined together to form a circuit board assembly. A thermal contractible tube may be used to wrap the glass tube (1) for insulation. A lamp holder (3) with protective switch can be arranged at two ends of the glass tube (1). Due to the protective switch, electrical power is supplied to the lamp only when both end caps of the tube (1) are plugged into the lamp sockets, thereby improving the security and applicability of the LED straight lamp.

Description

LED straight tube light

The present application claims priority to Chinese Patent Application No. 2014.

The present application claims priority to Chinese Patent Application No. 20151007592, filed on Jan. 12, 2015, the entire disclosure of which is hereby incorporated by reference.

The present application claims the priority of the Chinese Patent Application, filed on March 27, 2015, the filing date of

The present application claims priority to Chinese Patent Application No. 20151032439, the entire disclosure of which is incorporated herein by reference.

The present application claims priority to Chinese Patent Application No. 201510373492.3, filed on Jun. 26, 2015, the entire disclosure of which is incorporated herein by reference.

The present application claims priority to Chinese Patent Application No. 201510482944.1, entitled "LED Fluorescent Lamp", filed on Aug. 7, 2015, the entire disclosure of which is incorporated herein by reference.

The present application claims priority to Chinese Patent Application No. 201510483475.5, entitled "LED Fluorescent Lamp", filed on Aug. 8, 2015, the entire disclosure of which is hereby incorporated by reference.

The present application claims priority to Chinese Patent Application No. 20151055554, filed on Sep. 2, 2015, the entire disclosure of which is hereby incorporated by reference.

The present application claims priority to Chinese Patent Application No. 201510645134.3, filed on Jan. 08,,,,,,,,,,,,,,,,,,

The present application claims priority to Chinese Patent Application No. PCT Application No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The invention relates to the field of lighting fixtures, and in particular to an LED straight tube lamp and its components comprising a light source, an electronic component and a lamp cap.

Background technique

LED lighting technology is rapidly evolving to replace traditional incandescent and fluorescent lamps. Compared to fluorescent lamps filled with inert gas and mercury, LED straight tube lamps do not need to be filled with mercury. Therefore, in a variety of lighting systems for home or workplace dominated by lighting options such as conventional fluorescent bulbs and tubes, LED straight tube lamps have become an increasingly desirable lighting option without any surprise. The advantages of LED straight tube lamps include increased durability and longevity, as well as lower energy consumption. Therefore, considering all the factors, LED straight tube lamps will be a cost-saving lighting option.

The LED straight tube lamp generally comprises a lamp tube, a circuit board disposed in the lamp tube and having a light source, and a lamp cap disposed at two ends of the lamp tube, the lamp head is provided with a power source, and the light source and the power source are electrically connected through the circuit board. . However, the existing LED straight tube lamps still have the following types of quality problems to be solved:

First, the circuit board is generally a rigid board. When the lamp is broken, especially when the lamp is partially broken, the entire LED straight tube lamp is still in a straight tube state, and the user may mistakenly believe that the lamp can still be used, thereby going to the self. Installation, it is easy to cause electric leakage and electric shock.

Secondly, in the existing LED straight tube lamp, the metal circuit is generally connected by a metal wire between the rigid circuit board and the lamp head. In the process of manufacturing, transporting and using the LED straight tube lamp, the metal guide The wire is easily damaged or even broken due to the movement, and the LED straight tube lamp cannot be used.

Third, in the existing LED straight tube lamps, visual graininess often occurs. The plurality of LED dies arranged on the circuit board inside the lamp tube belong to the point source. Because of the characteristics of the point source, the illumination in the entire tube is not uniform without proper optical processing. Therefore, for the observer of the LED straight tube lamp, the whole tube exhibits the effect of graininess or uneven illumination, affecting the visual comfort, and even narrowing the range of the angle of the emitted light. In other words, the quality and aesthetic requirements of the average consumer will not be met. In response to this problem, the Chinese patent application with the application number CN 201320748271.6 discloses that a diffusion tube is placed in a glass tube in order to reduce the visual graininess. However, the arrangement of the diffuser tube adds an interface in the propagation path of the light, which increases the probability of total reflection of light when propagating, so that the output efficiency of light is lowered. In addition, the light absorption of the diffuser will result in a decrease in light output efficiency.

When the LED straight tube lamp is a double-ended power source, if one of the double ends of the LED straight tube lamp has been inserted into the socket and the other end has not been inserted into the socket, the user may touch the metal that is not inserted into the socket or may be electrically conductive. In part, the risk of electric shock may occur.

In view of the above problems, the present invention and its embodiments are set forth below.

Summary of the invention

The present invention provides a new LED straight tube lamp to solve the above problems.

The invention provides an LED straight tube lamp, which comprises a glass tube and two lamp holders disposed at two ends of the glass tube. The two lamps can be the same size or different. When the size of the two bases is different, optionally, the smaller base has a size of 30% to 80% of the larger size of the base.

Optionally, the lamp cap is provided with a hole for dissipating heat.

Preferably, the hole for heat dissipation on the lamp cap is curved.

Optionally, the holes for dissipating heat on the lamp cap are three arcs of different sizes.

Optionally, the holes for heat dissipation on the lamp cap are three arcs that gradually change from small to large.

Further, the glass tube and the lamp holder can be fixed by using a high thermal conductivity silica gel having a thermal conductivity of ≥0.7 w/m.k.

Optionally, the glass tube can also cover the glass tube with a heat shrinkable tube, and the glass tube can be absolutely Edge processing. Optionally, the heat shrinkable tube has a thickness ranging from 20 μm to 200 μm, and preferably has a thickness ranging from 50 μm to 100 μm.

Optionally, the glass tube further includes a diffusion film, and the light generated by the light source passes through the diffusion film and then exits the glass tube.

Optionally, the diffusion film is a diffusion coating covering an inner circumferential surface or an outer circumferential surface of the glass bulb.

Optionally, the diffusion film is a diffusion coating covering the surface of the light source.

Optionally, the diffusion film has a thickness ranging from 20 μm to 30 μm.

Optionally, the diffusion film is a diffusion film and is disposed outside the light source and is not in contact with the light source.

Optionally, the diffusion film has a light transmittance of 85% or more.

Optionally, the diffusing film has a light transmittance of 92% to 94% and a thickness ranging from 200 μm to 300 μm.

Optionally, a reflective film is further disposed on the inner circumferential surface of the glass bulb, and a portion of the inner circumferential surface of the glass bulb is circumferentially occupied. Preferably, a ratio between a length of the reflective film extending circumferentially of the glass bulb and a circumference of the inner circumferential surface of the glass bulb ranges from 0.3 to 0.5.

Optionally, the inner wall of the glass bulb forms a rough surface, and the outer surface of the glass bulb is a smooth surface, that is, the inner wall of the glass bulb is larger than the outer surface of the glass bulb. The roughness Ra of the inner wall of the glass tube is 0.1 to 40 μm. Preferably, the roughness Ra of the inner wall of the glass tube is 1 to 20 μm.

The invention further provides an LED straight tube lamp, comprising: a glass tube and a lamp head disposed at one end of the glass tube; a power source disposed in the lamp holder; and a lamp panel disposed on the glass lamp a light source is disposed on the lamp board; the light source and the power source are electrically connected through the light board; the light board is a flexible circuit board and is a single layer patterned metal line The layer structure is either a single layer patterned metal circuit layer plus a double layer structure of a dielectric layer. Optionally, the single-layer patterned metal wiring layer structure has a thickness ranging from 10 μm to 50 μm, and preferably has a thickness ranging from 25 μm to 35 μm.

The light source is disposed on the single-layer patterned metal circuit layer, and the light source is in electrical communication with the power source through the single-layer patterned metal circuit layer. The dielectric layer is disposed on a side of the single-layer patterned metal circuit layer opposite to the light source, and is fixed to an inner circumferential surface of the glass bulb.

Optionally, a ratio between a length of the flexible circuit board extending circumferentially of the glass tube and a circumference of the inner circumference of the glass tube ranges from 0.3 to 0.5.

Optionally, the surface of the flexible circuit board further includes a circuit protection layer.

Optionally, the flexible circuit board is connected to the power source by wire bonding.

Optionally, the flexible circuit board is disposed on the reflective film.

Optionally, the flexible circuit board is located on one side of the reflective film along a circumferential direction of the glass tube.

Optionally, the reflective film is disposed on both sides of the light panel and extends along the circumferential direction of the glass bulb.

Optionally, the inner circumferential surface or the outer circumferential surface of the glass bulb may be covered with an adhesive film for isolating the outer and inner portions of the glass bulb after the glass bulb is broken.

Optionally, the two ends of the flexible circuit board along the axial direction of the glass tube are not fixed on the inner circumferential surface of the glass tube.

Optionally, the flexible circuit board forms a free portion along the axial ends of the glass tube, and the free portion is bent and deformed toward the inside of the glass tube.

Optionally, the flexible circuit board can also pass through a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a dielectric layer without a free portion. The layer structure is electrically connected directly to the power source.

Optionally, the power source may be a single body (ie, all power modules are integrated in one component) and disposed in a lamp cap at one end of the glass tube; or the power source may also be divided into two parts, called a dual entity ( That is, all the power modules are respectively disposed in two parts), and the two parts are respectively disposed in the lamp caps at both ends of the glass tube.

Optionally, the lamp cap includes a power socket for installing a power source.

Optionally, one end of the power source has a metal pin, and the lamp cap is provided with a hollow conductive pin for connecting the power source.

Optionally, the flexible circuit board is directly soldered to the power source.

The invention further provides an LED straight tube lamp, comprising: a glass tube and a lamp head disposed at one end of the glass tube; a power source disposed in the lamp holder; and a lamp panel disposed on the glass lamp In the tube, the light board is provided with at least one light source; the light source and the power source are electrically connected through the light board; the power source comprises a short circuit board and a power module, and the light board comprises A long circuit board having a length greater than a length of the short circuit board, the short circuit board and the long circuit board being attached to each other to form a circuit board assembly.

Preferably, the short circuit board has a length of about 15 mm to 40 mm, more preferably 19 mm to 36 mm, and the long circuit board may have a length of 800 mm to 2800 mm, more preferably 1200 mm to 2400 mm. . The ratio of the short circuit board to the long circuit board may be 1:20 to 1:200.

Optionally, the short circuit board is a rigid circuit board to support the power module.

Optionally, the power module and the long circuit board are all located on the same side surface of the short circuit board, and the power module is directly electrically connected to the long circuit board.

Optionally, the power module and the long circuit board are respectively located on opposite sides of the short circuit board, and the power module passes through the short circuit board and the flexible circuit The circuit board of the flexible board is electrically connected.

Optionally, the long circuit board comprises a circuit layer and a dielectric layer, and the power module is electrically connected to the circuit layer through the short circuit board.

Optionally, the long circuit board comprises a circuit layer and a dielectric layer, and the power module is directly connected to the circuit layer.

Optionally, the power module is soldered and fixed on the end of the short circuit board in a vertical manner.

The present invention further provides an LED light source, the light source comprising a bracket having a recess, the LED die is disposed in the recess, the bracket has a first sidewall and a second sidewall, the first side The wall is lower than the second side wall.

Optionally, the inner surface of the first sidewall is a slope, and the slope faces the outside of the groove.

Optionally, the slope is a plane. Optionally, the slope is a curved surface. Preferably, the angle between the plane and the bottom wall of the groove ranges from 105 degrees to 165 degrees. More preferably, the angle between the plane and the bottom wall of the groove ranges from 120 degrees to 150 degrees.

The invention further provides an LED straight tube lamp, comprising an LED light source and a glass tube for accommodating the light source, the light source comprising a bracket having a groove and a LED crystal disposed in the groove The holder of the at least one light source has a first side wall arranged along a length direction of the glass bulb, and a second side wall arranged along a width direction of the glass bulb, the first side wall being low And on the second side wall.

The invention further provides an LED straight tube lamp, comprising an LED light source and a glass tube for accommodating the light source, the light source comprising a bracket having a groove and a LED crystal disposed in the groove The holder of the at least one light source has a second side wall extending along a length of the glass bulb, And a first sidewall extending along a width direction of the glass bulb, the first sidewall being lower than the second sidewall.

Optionally, the light source has a plurality of light sources arranged in one or more columns, and each column of light sources is arranged along a length direction of the glass bulb.

Optionally, in the brackets of the plurality of light sources, all the second sidewalls on the same side along the width direction of the glass bulb are on the same straight line.

Optionally, for the two rows of light sources located at the outermost side along the width direction of the glass bulb, in the brackets of the plurality of light sources of each column, all the second sidewalls on the same side along the width direction of the glass bulb are in the same On a straight line.

The invention further provides an LED straight tube lamp, comprising: a lamp cap sleeved at two ends of the glass tube;

LED module for illuminating;

And a power source for lighting the LED module; the power source is embedded in the lamp cap;

The lamp cap has a lamp body and a telescopic device;

The telescopic device is disposed on the lamp body.

Preferably, the base body is further provided with a conductive pin having an electrical connection with the lamp socket.

Further, the telescopic device has a telescopically stretchable portion, one end of which is convex outward in the direction of the conductive needle, and the other end is disposed in the inner cavity of the base body. Further, the telescopic member disposed inside the lamp body is connected to the elastic component.

Preferably, the telescopic device has a telescopically stretchable portion, one end of which protrudes outward in the direction of the conductive pin, and the height of the protrusion does not exceed the height of the conductive pin.

Preferably, when the LED straight tube lamp is connected to the lamp holder, the telescopic device is pressed by the lamp holder and relatively moved along the axial direction of the LED straight tube lamp, thereby causing the telescopic end of the body built in the lamp cap to be triggered. The micro switch realizes the electrical connection between the mains and the LED straight tube lamp; when the LED straight tube lamp is taken out from the lamp holder, the telescopic portion is pushed out in reverse due to the elastic force, thereby achieving the power-off effect.

Thus, the LED straight tube lamp of the present invention does not energize the lamp assembly before being installed in the lamp, thereby providing appropriate protection against electric shock for the installer of the LED straight tube.

The invention further provides an LED straight tube lamp, which is characterized in that: LED straight tube lamp,

The utility model comprises: a lamp cap sleeved on both ends of the glass lamp tube;

LED module for illuminating;

And a power source for lighting the LED module; the power source is embedded in the lamp cap and/or the peripheral frame;

The lamp cap has a lamp body and a telescopic device;

The telescopic device is disposed on the lamp body.

Compared with the prior art, the technical solution of the present invention has the following advantages:

Further, the design of the long and short lamp head can increase the flexibility of product design and manufacture.

Further, the glass tube and the lamp cap are fixed by a high thermal conductivity silicone, which can improve the efficiency and convenience of installation.

Further, the design of the power socket in the lamp head can improve the efficiency and convenience of power supply installation.

Further, the design of the lamp pin can increase the flexibility of product design and manufacture.

Further, through the design of the vent hole of the lamp cap, the problem of heat dissipation of the power source can be solved and the aesthetic appearance of the product can be improved.

Further, by encapsulating the glass tube with a heat shrinkable tube and insulating the glass tube, the flexibility of product design and manufacture can be increased.

Further, by forming a rough surface on the inner wall of the glass tube, total reflection can be effectively reduced. happened.

Further, a diffusing film is disposed in the glass tube, and the light can be diffused when the light passes through the diffusing film, and the light can be corrected to form a uniform surface light source to achieve optical diffusion, and finally the brightness of the glass tube is uniformly distributed. By providing a diffusing film on the inner wall of the glass bulb, the graininess of the user when viewing can be reduced, and the visual comfort can be improved; and the thickness of the diffusing film can be very small, thereby ensuring the light output efficiency to the maximum extent.

Further, a reflective film is disposed in the glass tube. On the one hand, when the glass tube is viewed from the side, the reflection of the reflective film allows the user to see the light emitted by the light source from other angles; The light emitted by the light source passes through the reflection of the reflective film, and can control the divergence angle of the glass tube, so that the light is more directed toward the direction not coated with the reflective film, so that the LED straight tube lamp obtains the same illumination effect with lower power. To improve energy efficiency.

Further, by directly bonding the light source directly to the inner circumferential surface of the glass tube, the tube angle can be increased and the heat dissipation efficiency can be improved.

Further, covering the inner circumferential surface or the outer circumferential surface of the glass bulb with an adhesive film can help to isolate the outside and the inside of the glass bulb after the glass bulb is broken, thereby improving safety.

The lamp board adopts a flexible circuit board, so that the glass tube can not maintain the straight tube state after the rupture, for example, when the rupture is two, so that the user does not think that the glass tube can be used and is installed by itself, thereby avoiding Electric shock accident.

Further, the flexible circuit board forms a free portion along the axial ends of the glass tube, and the free portion is bent and deformed toward the inside of the glass tube, so that the assembly and manufacturing convenience can be improved.

Further, the flexible circuit board is directly soldered to the power output end of the lamp cap, and is not easily broken during the moving process.

Further, the light board is a flexible circuit board and is a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a double layer structure of a dielectric layer. The design can increase the flexibility of product design and manufacturing.

Further, the flexible circuit board can also pass through a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a dielectric layer without a free portion. The double-layer structure is directly connected to the power supply to increase the flexibility of product design and manufacturing.

Further, the power supply is electrically connected to the lamp panel through the assembly of a long and short circuit board, and the structure can be strengthened without being easily broken.

Further, by using different forms of power modules, the flexibility of product design and manufacturing can be increased.

Further, the light source includes a bracket having a recess having a first sidewall and a second sidewall surrounding the recess, the LED die being disposed in the recess, the first sidewall being along the width of the glass bulb The directions are arranged, and the second side wall is arranged along the length direction of the glass bulb. By providing a second side wall arranged along the length of the glass tube in the bracket, when the user views the glass tube from the side, the LED die can be blocked by the second side wall, reducing the graininess and improving the visual comfort. The first sidewall of the bracket is disposed lower than the second sidewall, so that the light emitted by the LED die can be irradiated over the first sidewall to increase the light intensity and improve the energy saving effect.

Further, in the brackets of the plurality of light sources of each column, the second side wall extends along the length direction of the glass bulb and all the second side walls on the same side along the width direction of the glass bulb are on the same straight line, which can reduce the light. The loss when irradiated along the length of the glass tube, while the second side wall is arranged to form a wall, can better block the user's line of sight to see the light source.

Further, by utilizing the safety function that must be energized when both end caps of the lamp are simultaneously inside the lamp holder, the installer is protected from the risk of electric shock during installation, and the safety of installing the LED straight tube lamp is increased. applicability.

DRAWINGS

1 is a perspective view showing an LED straight tube lamp according to an embodiment of the present invention;

1A is a perspective view showing a lamp cap at both ends of a glass tube of an LED straight tube lamp according to another embodiment of the present invention having different sizes;

Figure 2 is an exploded perspective view showing the LED straight tube lamp of Figure 1;

3 is a perspective view showing a front portion and a top portion of a lamp cap of an LED straight tube lamp according to an embodiment of the present invention;

4 is a plan sectional view showing the internal structure of the glass tube of the LED straight tube lamp in the axial direction according to an embodiment of the present invention, wherein the two reflective films extend circumferentially along the glass tube on both sides of the lamp board;

Figure 5 is a plan sectional view showing the glass tube along the LED straight tube lamp of another embodiment of the present invention An internal structure in the axial direction, wherein the reflective film extends only circumferentially along the glass bulb on one side of the lamp panel;

Figure 6 is a plan cross-sectional view showing the internal structure of the glass tube of the LED straight tube lamp in the axial direction according to still another embodiment of the present invention, wherein the reflection film is located under the lamp board and on both sides of the lamp board along the periphery of the glass tube Extend

Figure 7 is a plan sectional view showing the internal structure of the glass tube of the LED straight tube lamp in the axial direction according to still another embodiment of the present invention, wherein the reflection film is located under the lamp plate and only along the side of the lamp plate along the glass tube Circumferential extension

Figure 8 is a plan sectional view showing the internal structure of the glass tube of the LED straight tube lamp in the axial direction according to still another embodiment of the present invention, wherein the two reflecting films are respectively adjacent to both sides of the lamp board and along the circumference of the glass tube Extend

9 is a plan cross-sectional view showing the lamp panel of the LED straight tube lamp according to an embodiment of the present invention as a flexible circuit board and having its end crawling through the transition portion of the glass tube to be soldered to the output end of the power source;

Figure 10 is a plan sectional view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to an embodiment of the present invention having a two-layer structure;

Figure 11 is a perspective view showing a pad for soldering a flexible circuit board of a lamp board of an LED straight tube lamp according to an embodiment of the present invention, which is soldered to a printed circuit board of a power supply;

Figure 12 is a plan view showing a pad configuration of a flexible circuit board of a lamp panel of an LED straight tube lamp according to an embodiment of the present invention;

Figure 13 is a plan view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to another embodiment of the present invention having three rows of pads arranged side by side;

Figure 14 is a plan view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to still another embodiment of the present invention having three rows of pads arranged in two rows;

Figure 15 is a plan view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to still another embodiment of the present invention having four pads in a row of side-by-side pads;

Figure 16 is a plan view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to still another embodiment of the present invention having four rows of pads arranged in two rows;

Figure 17 is a plan view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to an embodiment of the present invention having a hole in a pad;

Figure 18 is a plan sectional view showing the pad and electricity of the flexible circuit board using the lamp board of Figure 17 The welding process of the source printed circuit board;

Figure 19 is a plan cross-sectional view showing the soldering process of the pads of the flexible circuit board using the lamp board of Figure 17 and the printed circuit board of the power supply, wherein the holes in the pads are adjacent to the edges of the flexible circuit board;

20 is a plan view showing a pad of a flexible circuit board of a lamp panel of an LED straight tube lamp according to an embodiment of the present invention;

Figure 21 is a plan sectional view showing a partially enlarged cross-sectional view taken along line A-A' of Figure 20;

Figure 22 is a perspective view showing a flexible circuit board of a lamp panel of an LED straight tube lamp according to another embodiment of the present invention combined with a printed circuit board of a power source into a circuit board assembly;

Figure 23 is a perspective view showing another configuration of the circuit board assembly of Figure 22;

Figure 24 is a perspective view showing the support structure of the light source of the LED straight tube lamp according to an embodiment of the present invention;

Figure 25 is a perspective view showing a power supply in an LED straight tube lamp according to an embodiment of the present invention;

26A-F are views showing several structures of a lamp cap according to an embodiment of the present invention;

FIG. 27 is a schematic structural view of an LED fluorescent lamp according to an embodiment of the present invention.

detailed description

The invention proposes a new LED straight tube lamp on the basis of the glass tube to solve the problems mentioned in the background art and the above problems. The above described objects, features, and advantages of the present invention will be more apparent from the aspects of the invention. The following description of the various embodiments of the invention are intended to be illustrative and not restrictive

Referring to FIG. 1 and FIG. 2, the present invention provides an LED straight tube lamp, which comprises: a glass tube 1, a light board 2 disposed in the glass tube 1, and respectively disposed on the glass. Two lamp caps 3 at both ends of the lamp tube 1. The size of the lamp caps is the same or different. Referring to FIG. 1A, in an embodiment in which the sizes of the bases are different, preferably, the smaller base has a size of 30% to 80% of the size of the larger base. Further, the glass tube and the lamp holder can be fixed by using a high thermal conductivity silica gel having a thermal conductivity of ≥0.7 w/m.k (not shown).

Optionally, the glass tube can also cover the glass tube with a heat shrinkable tube to insulate the glass tube. Optionally, the heat shrinkable tube has a thickness ranging from 20 μm to 200 μm, and a preferred thickness range is 50 μm to 100 μm (not shown).

Optionally, the inner wall of the glass bulb forms a rough surface, and the outer surface of the glass bulb is a smooth surface, that is, the inner wall of the glass bulb is larger than the outer surface of the glass bulb. The roughness Ra of the inner wall of the glass tube is 0.1 to 40 μm. Preferably, the roughness Ra of the inner wall of the glass tube is 1 to 20 μm. Surface roughness can be formed by mechanical processing or chemical methods, such as friction between the surface of the tool and the part during machining, plastic deformation of the surface layer metal during chip separation, and high frequency vibration in the process system. Methods such as chemical etching. Different processing methods and workpiece materials are different, the surface of the surface to be processed has traces of depth, density, shape and texture, which can be designed according to the actual LED required illumination.

Referring to Figures 2 and 3, in other embodiments, the lamp cap provided by the present invention is provided with a hole 304 for heat dissipation. Thereby, the heat generated by the power module located inside the lamp cap can be dissipated without causing the inside of the lamp cap to be at a high temperature to avoid the reliability of the internal components of the lamp cap. Further, the holes for heat dissipation on the lamp cap are curved. Further, the holes for heat dissipation on the lamp cap are three arcs of different sizes. Further, the holes for heat dissipation on the lamp cap are three arcs that gradually change from small to large. Further, the hole for heat dissipation on the lamp cap may be formed by any combination of the above-mentioned arc shape and arc.

In other embodiments, the base includes a power socket (not shown) for mounting the power module.

Referring to FIG. 4, in addition to the light board 2 (or the flexible circuit board) of the glass tube 1, the glass tube 1 of the present embodiment further includes a diffusion film 13, and the light generated by the light source 202 passes through the diffusion film. After 13, wear the glass tube 1. The diffusion film 13 acts to diffuse the light emitted from the light source 202. Therefore, as long as the light can pass through the diffusion film 13 and then exit the glass bulb 1, the diffusion film 13 can be arranged in various forms, for example, a diffusion film. 13 may be coated or covered on the inner circumferential surface of the glass bulb 1, or a diffusion coating (not shown) applied to the surface of the light source 202, or covered (or covered) as a housing at the light source 202. External diffusion diaphragm.

Referring again to FIG. 4, when the diffusion film 13 is a diffusion film, it may be covered outside the light source 202 and not in contact with the light source 202. The general term for a diffusing film is an optical diffuser or an optical diffuser, usually in PS polystyrene, PMMA polymethyl methacrylate, PET (polyethylene terephthalate), PC (polycarbonate). One or a combination of ones and a plurality of diffusing particles, a composite material that can diffuse when light passes through the composite material, and corrects the light into a uniform surface light source to achieve optical diffusion. The brightness of the glass tube is evenly distributed.

When the diffusion film 13 is a diffusion coating, its main component may be any one of calcium carbonate, calcium halophosphate, and alumina, or a combination of any two, or a combination of the three. When a diffusion coating formed by using calcium carbonate as a main material with an appropriate solution, it has an excellent effect of diffusing and transmitting light (having an opportunity to reach 90% or more).

In this embodiment, the composition of the diffusion coating includes calcium carbonate, barium phosphate (for example, CMS-5000, white powder), thickener, and ceramic activated carbon (for example, ceramic activated carbon SW-C, colorless liquid). ). Specifically, when the diffusion coating is made of calcium carbonate as a main material, with a thickener, ceramic activated carbon and deionized water, it is mixed and applied to the inner peripheral surface of the glass glass tube, and the average thickness of the coating falls to 20 Between 30μm. The diffusion film 13 formed using such a material may have a light transmittance of about 90%, and generally, the light transmittance ranges from about 85% to 96%. In addition, the diffusion film 13 can also function as an electrical isolation in addition to the effect of diffusing light, so that when the glass bulb is broken, the risk of electric shock of the user is reduced; at the same time, the diffusion film 13 can make When the light source 202 emits light, the light is diffused and emitted in all directions, so as to be able to illuminate the rear of the light source 202, that is, close to the side of the flexible circuit board, thereby avoiding the formation of dark areas in the glass tube 1, and improving the space. The lighting is comfortable. In addition, when a diffusion coating of different material compositions is selected, there is another possible embodiment in which the diffusion film thickness ranges from 200 μm to 300 μm, and the light transmittance is controlled between 92% and 94%. Another effect.

In other embodiments, the diffusion coating may also be made of calcium carbonate as a main material, with a small amount of reflective material (such as barium phosphate or barium sulfate), thickener, ceramic activated carbon and deionized water, mixed and coated on the glass lamp. On the inner peripheral surface of the tube, the average thickness of the coating falls between 20 and 30 μm. Since the purpose of the diffusion film is to diffuse light, the diffusion phenomenon is the reflection of light through the particles. The particle size of the reflective material such as barium phosphate or barium sulfate is much larger than that of calcium carbonate. Therefore, the addition of a small amount of reflective material in the diffusion coating can effectively increase the diffusing effect of light.

Of course, in other embodiments, calcium halophosphate or alumina may also be selected as the main material of the diffusion coating. The particle size of the calcium carbonate particles is about 2 to 4 μm, while the particles of calcium halophosphate and alumina are The particle size falls between about 4 and 6 μm and between 1 and 2 μm, respectively. Taking calcium carbonate as an example, when the required range of light transmittance falls from 85% to 92%, the diffusion coating with calcium carbonate as the main material as a whole is used. The average thickness of the layer to be coated is about 20 to 30 μm. Under the same range of light transmittance (85% to 92%), the average thickness of the diffusion coating of the calcium halophosphate as the main material will fall to 25 Up to 35μm, mainly alumina The average thickness of the diffusion coating of the material to be applied will fall between 10 and 15 μm. If the light transmittance is higher, for example, 92% or more, the thickness of the diffusion coating using calcium carbonate, calcium halophosphate or aluminum oxide as the main material needs to be thinner.

That is to say, according to the use occasion of the glass tube 1, and different light transmittance requirements are selected, the main material to be coated with the diffusion coating, the corresponding formation thickness and the like can be selected. It should be added that the higher the light transmittance of the diffusion film, the more noticeable the user will see the graininess of the light source.

With continued reference to FIG. 4, further, the inner peripheral surface of the glass bulb 1 is further provided with a reflective film 12 disposed around the light panel 2 having the light source 202 and occupying the portion of the glass bulb 1 in the circumferential direction. Weekly. As shown in FIG. 4, the reflective film 12 extends circumferentially along the glass bulb on both sides of the lamp panel 2, and the lamp panel 2 is located substantially at the intermediate position of the reflective film 12 in the circumferential direction. The arrangement of the reflective film 12 has two effects. On the one hand, when the glass bulb 1 is viewed from the side (X direction in the drawing), since the reflective film 12 is blocked, the light source 202 is not directly seen, thereby reducing the graininess. The visual discomfort; on the other hand, the light emitted by the light source 202 passes through the reflection of the reflective film 12, and can control the divergence angle of the glass tube, so that the light is more directed toward the direction not coated with the reflective film, so that the LED is straight The tube lamp achieves the same illumination effect at a lower power and improves energy saving.

Specifically, the reflective film 12 is attached to the inner peripheral surface of the glass bulb 1, and an opening 12a corresponding to the lamp plate 2 is formed on the reflective film 12. The size of the opening 12a should be the same as or slightly larger than the light plate 2. The light board 2 is for accommodating the light board 2 having the light source 202. In the assembly, the light board 2 (or the flexible circuit board) with the light source 202 is first disposed on the inner circumferential surface of the glass tube 1, and the reflective film 12 is attached to the inner circumference of the glass tube. The opening 12a of the reflective film 12 is in one-to-one correspondence with the lamp panel 2 to expose the lamp panel 2 outside the reflective film 12.

In one embodiment, the reflectance of the reflective film 12 is at least 85%, and the reflection effect is good. Generally, when it is 90% or more, it is preferably 95% or more to obtain a more ideal reflection effect. The length of the reflective film 12 extending circumferentially along the glass bulb 1 occupies 30% to 50% of the circumference of the entire glass bulb 1, that is, the circumferential length of the reflective film 12 and the glass in the circumferential direction of the glass bulb 1. The ratio between the circumferences of the inner circumferential surface of the bulb 1 ranges from 0.3 to 0.5. It is to be noted that the present invention is only exemplified in that the lamp plate 2 is disposed at a central portion of the reflective film 12 in the circumferential direction, that is, the reflective film 12 on both sides of the lamp plate 2 has substantially the same area, as shown in FIG. Show. The material of the reflective film may be any one of PET, barium phosphate, and barium sulfate, or a combination of any two, or a combination of the three, and the reflection effect is better, and the thickness ranges from 140 μm. Between 350 μm, generally between 150 μm and 220 μm, the effect is better. As shown in FIG. 5, in other embodiments, the reflective film 12 may be disposed only on one side of the light board 2, that is, the reflective film 12 and the light board 2 are in contact with one side of the circumference, and the circumferential side occupies the glass tube 1 The ratio of the circumference is also 0.3 to 0.5. Alternatively, as shown in FIG. 6 and FIG. 7 , the reflective film 12 may not have an opening, and the reflective film 12 is directly attached to the inner circumferential surface of the glass bulb 1 during assembly, and then the light panel with the light source 202 is further disposed. 2 is fixed on the reflective film 12, where the reflective film 12 may also extend circumferentially along the glass bulb on one or both sides of the light panel 2, respectively.

The various types of reflective films 12 described in the above embodiments can be arbitrarily matched with various types of diffusing films 13, and optical effects of individual reflection, single diffusion, or simultaneous reflection and diffusion can be realized. For example, only the reflective film 12 may be provided, and the diffusion film 13 may not be provided, as shown in FIGS. 6, 7, and 8.

In other embodiments, the width of the flexible circuit board can be widened. Since the surface of the board includes a circuit protection layer of ink material, and the ink material has a function of reflecting light, the board itself is widened. It is possible to function as a function of the reflective film 12. Preferably, the ratio of the length of the flexible circuit board extending circumferentially along the glass bulb 2 to the circumference of the inner peripheral surface of the glass bulb 2 ranges from 0.3 to 0.5. The flexible circuit board can be covered with a circuit protection layer, and the circuit protection layer can be an ink material, which has the function of increasing reflection, and the widened flexible circuit board extends from the light source as a starting point to the circumferential direction, and the light source The light will concentrate more light by widening the area.

In other embodiments, the inner peripheral surface of the glass tube may be coated with a diffusion coating or partially coated with a diffusion coating (the surface of the reflective film 12 is not coated), but either way Preferably, the diffusion coating is applied to the outer surface of the end region of the glass bulb 1 so that the bonding between the base 3 and the glass bulb 1 is stronger.

It should be noted that, in the above embodiments of the present invention, one of a group consisting of a diffusion coating, a diffusion film, a reflective film, and an adhesive film may be selected and applied to the light emitted by the light source of the present invention. Optical processing.

Referring to FIG. 2, in an embodiment of the invention, the LED straight tube lamp further includes an adhesive sheet 4, a lamp insulating film 7 and a light source film 8. The lamp panel 2 is bonded to the inner peripheral surface of the glass bulb 1 through the adhesive sheet 4. As shown in the figure, the adhesive sheet 4 may be a silica gel, and the form thereof is not limited, and may be a plurality of segments as shown in the drawing or a long segment. Various forms of the adhesive sheet 4, various forms of the lamp insulating film 7 and various forms of the light source film 8 may be combined with each other to constitute different embodiments of the present invention.

The light board insulating film 7 is applied on the surface of the light board 2 facing the light source 202, so that the light board 2 is not exposed. Thereby, the insulation function of the lamp panel 2 from the outside is isolated. A through hole 71 corresponding to the light source 202 is reserved when the glue is applied, and the light source 202 is disposed in the through hole 71. The components of the lamp insulating film 7 include vinyl polysiloxane, hydrogen polysiloxane, and aluminum oxide. The thickness of the lamp insulating film 7 ranges from 100 μm to 140 μm (micrometers). If it is less than 100 μm, sufficient insulation is not obtained, and if it is larger than 140 μm, material waste is caused.

The light source film 8 is applied to the surface of the light source 202. The color of the light source film 8 is a transparent color to ensure light transmittance. After being applied to the surface of the light source 202, the shape of the light source film 8 may be in the form of particles, strips or sheets. The parameters of the light source film 8 include a refractive index, a thickness, and the like. The refractive index of the light source film 8 is allowed to range from 1.22 to 1.6, if the refractive index of the light source film 8 is the opening number of the refractive index of the light source 202, or the refractive index of the light source film 8 is the opening of the refractive index of the light source 202. The positive and negative of the number is 15%, the light transmittance is better. The light source housing herein refers to a housing that houses an LED die (or chip). In the present embodiment, the refractive index of the light source film 8 ranges from 1.225 to 1.253. The light source film 8 allows a thickness ranging from 1.1 mm to 1.3 mm. If it is less than 1.1 mm, the light source 202 will not be covered, and the effect is not good. If it is larger than 1.3 mm, the light transmittance is lowered, and the material cost is also increased.

When assembling, the light source film 8 is first applied to the surface of the light source 202; then the light board insulating film 7 is applied to one side surface of the light board 2; the light source 202 is fixed to the light board 2; then the light board 2 is The surface opposite to the light source 202 is adhered and fixed to the inner peripheral surface of the glass bulb 1 by the adhesive sheet 4; finally, the base 3 is fixed to the end region of the glass bulb 1 while the light source 202 and the power source 5 are electrically charged. connection. Or, as shown in FIG. 9, the flexible circuit board 2 is soldered through a free portion 21 and a power source 5, or the conventional wire is wired to electrically connect the lamp board 2 to the power source 5 to form a complete LED straight tube light.

In this embodiment, the lamp panel 2 is fixed to the inner circumferential surface of the glass bulb 1 by the adhesive sheet 4, so that the lamp panel 2 is attached to the inner circumferential surface of the glass bulb 1, so that the entire LED can be enlarged. The angle of illumination of the tube lamp increases the viewing angle, so that the setting can generally make the viewing angle exceed 330 degrees. By coating the lamp panel insulation film 7 on the lamp panel 2 and coating the light source film 8 on the light source 202, the insulation treatment of the entire lamp panel 2 is realized, so that even if the glass bulb 1 is broken, no electric shock accident occurs, and the electric shock is not improved. safety.

Further, the inner circumferential surface or the outer circumferential surface of the glass bulb 1 may be covered with an adhesive film (not shown) for isolating the outside and the inside of the glass bulb 1 after the glass bulb 1 is broken. This embodiment will be an adhesive film It is applied to the inner peripheral surface of the glass bulb 1.

The composition of the adhesive film includes a terminal vinyl silicone oil, a hydrogen-containing silicone oil, xylene, and calcium carbonate. The xylene is an auxiliary material. When the adhesive film is coated on the inner peripheral surface of the glass bulb 1 and solidified, the xylene will volatilize, and the main function is to adjust the viscosity, thereby adjusting the thickness of the adhesive film.

In one embodiment, the thickness of the adhesive film ranges from 100 μm to 140 μm. If the thickness of the adhesive film is less than 100 μm, the explosion-proof performance is insufficient. When the glass is broken, the whole glass tube will be cracked, and if it is larger than 140 μm, the light transmittance is lowered, and the material cost is increased. If the explosion-proof performance and the light transmittance are loose, the thickness of the adhesive film can be relaxed to 10 μm to 800 μm.

In this embodiment, since the inside of the glass tube is coated with an adhesive film, after the glass glass tube is broken, the adhesive film will stick the pieces together, and the through holes penetrating through the inside and the outside of the glass tube are not formed, thereby preventing The user touches the charged body inside the glass tube 1 to avoid an electric shock accident. At the same time, the adhesive film adopting the above ratio also has the function of diffusing light and transmitting light, and improves the uniformity and transparency of the whole LED straight tube lamp. Light rate. The adhesive film of this embodiment can be used in combination with the aforementioned adhesive sheet 4, lamp insulating film 7 and light source film 8, to constitute various embodiments of the present invention. It should be noted that when the light board 2 is a flexible circuit board, an adhesive film may not be provided.

Further, the lamp board 2 of the embodiment adopts a flexible circuit board, so that when the glass tube 1 is broken, the glass tube 1 that cannot support the rupture continues to be in a straight state to inform the user of the LED straight tube. The lamp can no longer be used to avoid electric shock accidents. Therefore, when a flexible circuit board is used, the electric shock caused by the broken glass tube can be alleviated to some extent. The lamp board 2 is a flexible circuit board and is a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a dielectric layer double layer structure.

Referring to FIG. 10, in an embodiment, the flexible circuit board as the lamp board 2 includes a single-layer patterned metal circuit layer 2a having a conductive effect, and the light source 202 is disposed on the single-layer patterned metal circuit layer 2a. Upper, the metal circuit layer 2a is electrically connected to the power source through a single layer. Referring to FIG. 10, in the embodiment, the flexible circuit board may further include a dielectric layer 2b stacked with the single-layer patterned metal wiring layer 2a, and the dielectric layer 2b and the single-layer patterned metal wiring layer 2a. The area is equal, and the single-layer patterned metal wiring layer 2a is used to set the light source 202 on the surface opposite to the dielectric layer 2b. The single-layer patterned metal circuit layer 2a is electrically connected to the power source 5 To let the DC current pass. The surface of the dielectric layer 2b opposite to the single-layer patterned metal wiring layer 2a is bonded to the inner peripheral surface of the glass bulb 1 by the adhesive sheet 4.

In other embodiments, the outer surfaces of the single-layer patterned metal wiring layer 2a and the dielectric layer 2b may be covered with a circuit protection layer, and the circuit protection layer may be an ink material having the functions of solder resist and reflection enhancement. . Alternatively, the flexible circuit board may be a layer structure, that is, consisting of only a single layer of patterned metal circuit layer 2a, and then the surface of the single layer patterned metal circuit layer 2a may be coated with a layer of the above ink material. The circuit protection layer is either not. Either a single-layer patterned metal wiring layer 2a structure or a two-layer structure (a single-layer patterned metal wiring layer 2a and a dielectric layer 2b) can be combined with a circuit protection layer. The circuit protection layer may also be disposed on one side surface of the flexible circuit board, for example, only one side of the light source 202 is provided with a circuit protection layer. It should be noted that the flexible circuit board is a single-layer patterned metal circuit layer structure 2a or a two-layer structure (a single-layer patterned metal circuit layer 2a and a dielectric layer 2b), which is obviously larger than The general three-layer flexible substrate (with a dielectric layer sandwiched between the two wiring layers) is more flexible and flexible, so it can be matched with a special glass tube 1 (for example: non-straight tube light) And the flexible circuit board is adhered to the wall of the glass tube 1. In addition, the flexible circuit board is closely attached to the wall of the glass tube tube, and the less the number of layers of the flexible circuit board, the better the heat dissipation effect, and the lower the material cost, the more environmentally friendly. The flexibility effect also has an opportunity to improve.

In other embodiments, the length of the flexible circuit board as the light panel 2 is greater than the length of the glass tube.

Referring to FIG. 2, the light board 2 is provided with a plurality of light sources 202. The light head 3 is provided with a power source 5, and the light source 202 and the power source 5 are electrically connected through the light board 2. In various embodiments of the present invention, the power source 5 may be a single body (that is, all power modules are integrated in one component) and disposed in the lamp cap 3 at one end of the glass bulb 1; or the power source 5 may be divided into two parts. It is called double entity (that is, all power modules are respectively disposed in two parts), and the two parts are respectively disposed in the lamp caps 3 at both ends of the glass tube.

Whether it is a single body or a dual entity, the power supply can be formed in multiple ways. For example, the power supply can be a potted module, specifically a high thermal conductivity silica gel (thermal conductivity ≥ 0.7w / m) · k), the power module is potted by a mold to obtain a power source. The power source obtained in this manner has the advantages of high insulation, high heat dissipation, and more regular shape, and can be conveniently matched with other structural members. Alternatively, the power supply can also be formed without the potting glue, directly placing the bare power module into the lamp cap. Internally, or after the exposed power module is wrapped with a conventional heat shrinkable tube, it is placed inside the lamp cap 3. In other words, in various embodiments of the present invention, the power source 5 may be in the form of a single-chip printed circuit board mounted power module as shown in FIG. 9, or may be in the form of a single body module as shown in FIG.

Referring to FIG. 2 and FIG. 25, in one embodiment, the power supply 5 has a male plug 51 at one end and a metal pin 52 at the other end. The end of the light board 2 is provided with a female plug 201. A hollow conductive pin 301 is connected to the external power source. The male plug 51 of the power source 5 is inserted into the female plug 201 of the lamp panel 2, and the metal pin 52 is inserted into the hollow conductive pin 301 of the lamp cap 3. At this time, the male insertion 51 and the female insertion 201 correspond to the adapter for electrically connecting the power source 5 and the lamp panel 2. After the metal pin 52 is inserted into the hollow conductive pin 301, the hollow conductive pin 301 is impacted by the external punching tool, so that the hollow conductive pin 301 is slightly deformed, thereby fixing the metal pin 52 on the power source 5, and achieving electrical connection. When energized, the current sequentially passes through the hollow conductive pin 301, the metal pin 52, the male plug 51, and the female plug 201 to reach the light board 2, and reaches the light source 202 through the light board 2. However, the structure of the power source 5 is not limited to the modular form shown in FIG. The power source 5 can be a printed circuit board carrying a power module, and is electrically connected to the lamp board 2 by means of a connection of the male plug 51 and the female plug 201. In another embodiment, the power supply may have a female plug at one end, the end of the light board is provided with a male plug, and the power supply is electrically connected to the light board by a female plug and a male plug.

In other embodiments, the electrical connection between the power supply 5 of any type and the lamp panel 2 can also be replaced by a conventional wire bonding method to replace the male plug 51 and the female plug 201, that is, using a conventional metal wire. One end of the metal wire is electrically connected to the power source, and the other end is electrically connected to the lamp board 2. Further, the metal wire may be covered with an insulating sleeve to protect the user from electric shock. However, the way in which the wires are wired and connected may have a problem of breakage during transportation, and the quality is slightly poor.

In other embodiments, the electrical connection between the power source 5 and the lamp panel 2 can be directly connected together by rivet bonding, solder paste bonding, soldering, or wire bonding. In accordance with the manner of fixing the lamp board 2, one surface of the flexible circuit board is bonded and fixed to the inner peripheral surface of the glass tube 1 by the adhesive sheet 4, and both ends of the flexible circuit board can be It is selected to be fixed or not fixed to the inner peripheral surface of the glass bulb 1.

If both ends of the flexible circuit board are fixed to the inner peripheral surface of the glass tube 1, it is preferable to provide the female plug 201 on the flexible circuit board, and then insert the male plug 51 of the power supply 5 into the female plug 201. Achieve electrical connections.

If the two ends of the lamp panel 2 along the axial direction of the glass bulb 1 are not fixed to the inner peripheral surface of the glass bulb 1, such as If the wire is connected, in the subsequent moving process, since the two ends are free, sloshing is likely to occur during the subsequent moving process, and thus the wire may be broken. Therefore, the connection mode of the lamp panel 2 and the power source 5 is preferably selected as soldering. Specifically, referring to FIG. 9, the light board 2 can be directly climbed and soldered to the output end of the power source 5, thereby eliminating the use of the wire and improving the stability of the product quality. At this time, the lamp board 2 does not need to be provided with the female plug 201, and the output end of the power source 5 does not need to be provided with the male plug 51.

As shown in FIG. 11, the specific method may be to leave the output end of the power source 5 out of the power source pad a, and leave tin on the power source pad a to increase the thickness of the tin on the pad to facilitate soldering, correspondingly, A light source pad b is also left on the end of the lamp panel 2, and the power source pad a at the output end of the power source 5 is soldered to the light source pad b of the lamp panel 2. The plane in which the pad is located is defined as the front side, and the connection mode of the lamp board 2 and the power source 5 is most stable with the pad on the front side of the both sides, but the soldering head must be pressed against the back side of the lamp board 2 during welding, with the lamp interposed Plate 2 is used to heat the solder, which is more likely to cause reliability problems. If the hole is opened in the middle of the light source pad b on the front side of the lamp board 2 as shown in FIG. 17, and then the front side is superposed on the power source pad a on the front side of the power source 5 for soldering, the soldering head can directly solder. Heating and melting is easier to implement in practice.

As shown in FIG. 11, in the above embodiment, the flexible circuit board as the lamp board 2 is mostly fixed on the inner peripheral surface of the glass bulb 1, and is not fixed to the glass bulb 1 at both ends. On the circumferential surface, the lamp panel 2 which is not fixed to the inner circumferential surface of the glass bulb 1 forms a free portion 21, and the lamp panel 2 is fixed to the inner peripheral surface of the glass bulb 1. The free portion 21 has the above-described pad b. At the time of assembly, the welded end of the free portion 21 and the power source 5 causes the free portion 21 to contract toward the inside of the glass bulb 1. The flexible circuit board as the lamp board 2 may also pass through a single layer patterned metal line layer structure or a single layer patterned metal line layer plus a double layer of a dielectric layer without a free portion. The structure is electrically connected directly to the power source 5. In this embodiment, when the lamp board 2 and the power source 5 are connected, the surfaces of the pads b and a and the light source 202 on the lamp board face in the same direction, and the pad b on the lamp board 2 is formed as shown in FIG. The through hole e allows the pad b and the pad a to communicate with each other. When the free portion 21 of the lamp panel 2 is deformed toward the inside of the glass bulb 1, the solder joint between the printed circuit board of the power source 5 and the lamp panel 2 has a lateral pulling force to the power source 5. Further, compared with the case where the pad a of the power source 5 and the pad b on the lamp board 2 face each other, the solder connection portion between the printed circuit board of the power source 5 and the lamp board 2 has a power supply 5 Pull down. The pull-down force comes from the solder in the through hole e to form a stronger and firmer electrical property between the power source 5 and the lamp panel 2. connection.

As shown in FIG. 12, the light source pad b of the lamp board 2 is two unconnected pads, which are respectively electrically connected to the positive and negative electrodes of the light source 202, and the size of the pad is about 3.5×2 mm ² , and the printed circuit board of the power source 5 There are also corresponding pads on the top. The upper part of the pad is reserved for the automatic soldering of the soldering machine. The thickness of the tin can be 0.1 to 0.7 mm, preferably 0.3 to 0.5 mm, and 0.4 mm. For the best. An insulating hole c may be disposed between the two pads to prevent the two pads from being electrically short-circuited due to solder fusion during the soldering process, and a positioning hole d may be disposed behind the insulating hole c. Let the automatic welding machine correctly judge the correct position of the light source pad b.

At least one of the light source pads b of the light panel is electrically connected to the positive and negative electrodes of the light source 202, respectively. In other embodiments, the number of light source pads b may have more than one, for example, two, three, four, or four or more in order to achieve compatibility and expandability in subsequent use. When there is only one pad, the two ends of the lamp board are electrically connected to the power source to form a loop. In this case, the electronic component can be used instead, for example, the inductor is used as a current-stabilizing component instead of the capacitor. As shown in Figures 13 through 28, when there are three pads, the third pad can be used as a ground. When the pad is four, the fourth pad can be used as a signal input. Correspondingly, the power supply pad a is also the same number as the light source pad b. When the number of the pads is three or more, the arrangement between the pads may be arranged in a row or in two rows, and may be arranged in an appropriate position according to the size of the accommodating area in actual use, as long as they are not electrically connected to each other to cause a short circuit. In other embodiments, if part of the circuit is fabricated on the flexible circuit board, the light source pad b can be a single one, and the fewer the number of pads, the more process is saved in the process; the more the number of pads, the more flexible The electrical connection between the flexible circuit board and the power supply output is more and more fixed.

As shown in FIG. 17, in other embodiments, the inside of the light source pad b may have a structure of soldering perforations e, and the diameter of the soldering perforations e may be 1 to 2 mm, preferably 1.2 to 1.8 mm, and most preferably 1.5 mm. If it is too small, the tin for soldering is not easy to pass. When the power source pad a of the power source 5 is soldered to the light source pad b of the lamp board 2, the soldering tin can pass through the soldering hole e, and then accumulate on the soldering hole e to cool and condense, forming a larger than soldering. Perforating the e-diameter solder ball structure g, this solder ball structure g functions as a nail, except for the tin fixing between the power source pad a and the light source pad b, but also because of the solder ball structure g The function is to enhance the stability of the electrical connection.

As shown in FIG. 18 to FIG. 19, in other embodiments, when the soldering perforation e of the light source pad b is ≦1 mm from the edge of the lamp panel 2, tin for soldering will pass through the hole e and accumulate in the hole. Upper side The edge, too much tin will also flow back from the edge of the light board 2, and then condensed with the tin on the power supply pad a, the structure is like a rivet to firmly pin the light board 2 to the power supply 5 The circuit board has a reliable electrical connection function. As shown in FIG. 20 and FIG. 21, in other embodiments, the soldering notch f replaces the soldering viae e, the soldering via of the pad is at the edge, and the soldering tin passes through the soldering notch f to the power source pad a. The light source pad b is electrically connected and fixed, and the tin is more likely to climb up the light source pad b and accumulate around the soldering notch f. When cooling and condensing, more tin will form a solder ball having a diameter larger than the soldering notch f. The structure will increase the fixing ability of the electrical connection structure. In the present embodiment, the tin for soldering functions as a C-shaped nail because of the design of the soldering notch.

Referring to FIG. 22 and FIG. 23, in another embodiment, the light plate 2 and the power source 5 fixed by the above-described through-welding method may be replaced by a circuit board assembly 25 on which the power module 250 is mounted. The circuit board assembly 25 has a long circuit board 251 and a short circuit board 253. The long circuit board 251 and the short circuit board 253 are fixed to each other by a bonding method, and the short circuit board 253 is located near the periphery of the long circuit board 251. The short circuit board 253 has a power module 25, which integrally constitutes a power source. The short circuit board 253 is made of a longer circuit board 251 to achieve the function of supporting the power module 250.

The long circuit board 251 may be the above-described flexible circuit board or flexible substrate as the lamp board 2, and has the single-layer patterned metal wiring layer 2a shown in FIG. The manner in which the single-layer patterned metal circuit layer 2a of the lamp panel 2 and the power module 250 are electrically connected may have different electrical connection manners according to actual use conditions. As shown in FIG. 22, the single-layer patterned metal circuit layer 2a electrically connected to the power module 250 on the power module 250 and the long circuit board 251 is located on the same side of the short circuit board 253, and the power module 250 directly The long circuit board 251 is electrically connected. As shown in FIG. 23, a single-layer patterned metal circuit layer 2a electrically connected to the power module 250 on the power module 250 and the long circuit board 251 is respectively located on both sides of the short circuit board 253, and the power module 250 is worn. The single-layer patterned metal wiring layer 2a is electrically connected through the short circuit board 253 and the light board 2.

As shown in FIG. 22, in an embodiment, the circuit board assembly 25 omits the case where the lamp board 2 and the power source 5 are fixed by soldering in the foregoing embodiment, and the long board 251 and the short board are first used. The 253 is fixedly bonded, and the power module 250 and the single-layer patterned metal wiring layer 2a of the lamp panel 2 are electrically connected. Further, the light board 2 is not limited to one or two layers of circuit boards as described above. The light source 202 is provided in the single-layer patterned metal wiring layer 2a, and is electrically connected to the power source 5 through the single-layer patterned metal wiring layer 2a. As shown in FIG. 23, in another embodiment, the circuit board assembly 25 has a long circuit board 251 and a short circuit board 253, and the long circuit board 251 can be a flexible circuit board or flexible of the above-mentioned light board 2. The substrate, the light board 2 comprises a single layer diagram The metal wiring layer 2a and the dielectric layer 2b are first fixed to each other by splicing, and then the single-layer patterned metal wiring layer 2a is attached to the dielectric layer 2b. And extended to the short circuit board 253. The above embodiments do not deviate from the application range of the circuit board assembly 25 of the present invention.

In the above embodiments, the short circuit board 253 has a length of about 15 mm to 40 mm, preferably 19 mm to 36 mm, and the long circuit board 251 has a length of 800 mm to 2800 mm, preferably 1200 mm. 2400 mm. The ratio of the short circuit board 253 to the long circuit board 251 may be 1:20 to 1:200.

In addition, in the foregoing embodiment, when the lamp panel 2 and the power source 5 are fixed by soldering, the end portion of the lamp panel 2 is not fixed to the inner peripheral surface of the glass bulb 1, and cannot be securely supported and supported. The power source 5, in other embodiments, if the power source 5 must be separately fixed in the lamp cap of the end region of the glass bulb 1, the lamp cap will be relatively long to compress the effective light-emitting area of the glass bulb 1.

Referring to FIG. 24, in various embodiments of the present invention, the light source 202 can be further modified to include a bracket 202b having a recess 202a, and an LED die (or chip) 18 disposed in the recess 202a. The grooves 202a may be one or more. The recess 202a is filled with a phosphor, and the phosphor covers the LED die (or chip) 18 to function as a light color conversion. Specifically, the LED die (or chip) 18 used in the embodiments of the present invention is compared to a square shape having a length to width ratio of a conventional LED die (or chip) of about 1:1. The ratio of the length to the width may range from 2:1 to 10:1, and the ratio of the length to the width of the LED die (or chip) 18 used in the embodiments of the present invention is preferably from 2.5:1 to 5:1. The optimum range is from 3:1 to 4.5:1, so that the length direction of the LED die (or chip) 18 is aligned along the length of the glass bulb 1 to improve the LED die (or chip) 18 The average current density and the overall light pattern of the glass bulb 1 and the like.

Referring again to FIG. 24, the bracket 202b of the at least one light source 202 has a first side wall 15 arranged along the length of the glass bulb and extending in the width direction of the glass bulb, and arranged along the width direction of the glass bulb and along the glass lamp. The second side wall 16 extending in the longitudinal direction of the tube, the first side wall 15 is lower than the second side wall 16, and the two first side walls 15 and the two second side walls surround the groove 202a. The first side wall 15 extends "in the width direction of the glass bulb 1" as long as it satisfies the extension tendency and is substantially the same as the width direction of the glass bulb 1, and is not required to be strictly parallel to the width direction of the glass bulb 1, for example, A side wall 15 may have a slight angular difference from the width direction of the glass bulb 1, or the first side wall 15 may also have various shapes such as a broken line shape, an arc shape, a wave shape, etc.; the second side wall 16 "along the glass lamp The length direction of the tube 1 is extended as long as the extension trend is substantially the same as the length direction of the glass bulb 1, and the length of the glass tube 1 is not strictly required. The directions are parallel. For example, the second side wall 16 may have a slight angular difference from the longitudinal direction of the glass bulb 1. Alternatively, the second side wall 16 may have various shapes such as a broken line shape, an arc shape, and a wave shape. In various embodiments of the present invention, the side walls of the brackets in which one or more of the light sources are allowed in the array of light sources are otherwise arranged or extended.

In the embodiments of the present invention, the first side wall 15 is lower than the second side wall 16 so that light can be easily dissipated over the bracket 202b, and the uneven spacing can be designed to prevent discomfort of particles in the Y direction. In other embodiments of the present invention, if the first side wall is not lower than the second side wall, each column of the light sources 202 is arranged more closely to reduce the graininess and improve the performance. On the other hand, when the user views the glass bulb from the side of the glass tube, for example, in the X direction, the second side wall 16 can block the user's line of sight and directly see the light source 202 to reduce the discomfort of the particles.

Referring again to FIG. 24, in various embodiments of the present invention, the inner surface 15a of the first side wall 15 may be disposed as a slope surface, and the arrangement of the slope surface is such that the inner surface 15a is disposed perpendicular to the bottom wall. Light is easier to scatter through the slope. The slope may include a plane or a curved surface, or the slope may be a combination of a plane and a curved surface. When a plane is employed, the slope of the plane is between about 30 and 60 degrees. That is, the angle between the slope in the planar form and the bottom wall of the groove 202a ranges from 120 degrees to 150 degrees. Preferably, the slope of the plane is between about 15 and 75 degrees, that is, the angle between the slope of the planar form and the bottom wall of the recess 202a ranges between 105 and 165 degrees.

In each embodiment of the present invention, a plurality of light sources 202 in one glass bulb 1 are arranged, and a plurality of light sources 202 may be arranged in one or more columns, and each column of light sources 202 is along the axial direction of the glass bulb 1 (Y direction). ) Arrangement. When the plurality of light sources 202 are arranged in a row along the longitudinal direction of the glass bulb, in the bracket 202b of the plurality of light sources 202, all the second side walls 16 on the same side in the width direction of the glass bulb are on the same straight line, that is, The second side wall 16 on the same side forms a structure similar to a wall to directly obscure the light source 202 from the user's line of sight. When the plurality of light sources 202 are arranged in a plurality of rows along the longitudinal direction of the glass bulb, and arranged along the axial direction (Y direction) of the glass bulb 1, only the outermost two rows of light sources 202 (ie, adjacent glass lamps) The bracket 202b of the two rows of light sources 202) of the tube wall has two first side walls 15 arranged along the longitudinal direction (Y direction) of the glass bulb 1 and two arranged along the width direction (X direction) of the glass bulb 1. The second side wall 16, that is, the bracket 202b of the light source 202 of the outermost two rows has a first side wall 15 extending in the width direction (X direction) of the glass bulb 1, and along the length of the glass bulb 1. The second side wall 16 extending in the direction (Y direction) may be arranged in the bracket 202b of the other columns of the light source 202 between the two columns of light sources 202. The direction is not limited, for example, the brackets 202b of the middle column (third column) of the light source 202, each of the brackets 202b may have two first side walls 15 arranged along the length direction (Y direction) of the glass bulb 1 and along the glass The two second side walls 16 arranged in the width direction (X direction) of the bulb 1 or each of the brackets 202b may have two first side walls 15 and along the width direction (X direction) of the glass bulb 1 The two second side walls 16 of the glass tube 1 arranged in the longitudinal direction (Y direction), or staggered, etc., as long as the user views the glass tube from the side of the glass tube, for example, in the X direction, the outermost two The second side wall 16 of the bracket 202b in the column light source 202 can block the user's line of sight and directly see the light source 202, thereby reducing the discomfort of the particles. For the outermost two columns of light sources, the side walls of the bracket with one or more of the light sources are also allowed to be otherwise arranged or extended.

In summary, when the plurality of light sources 202 are arranged in a row along the length of the glass tube, the second side walls 16 of the brackets 202b of all the light sources 202 need to be respectively located on the same straight line, that is, the second side wall 16 on the same side. A structure similar to a wall is formed to block the light source 202 directly from the user's line of sight. When the plurality of light sources 202 are arranged in a plurality of rows along the length of the glass bulb, the outermost second side walls 16 of the brackets 202b of all the light sources 202 along the outermost two rows along the width direction of the glass bulb need to be located in two On the straight line, a structure similar to the two walls is formed to block the user's line of sight to directly see the light source 202; and for the middle or a plurality of columns of the light source 202, the arrangement and extension of the side walls are not required, and the outermost side can be The two columns of light sources 202 are identical, and other different arrangements may be used.

Next, various embodiments of the structure of the lamp cap with the protective switch of the present invention will be described in detail.

FIG. 26A is a schematic structural view of a lamp cap structure according to an embodiment of the present invention. The base 3 includes: a base body 300, a power supply 5, a conductive pin 301 disposed at the top end of the base body 300, and a telescopic device 332 extending from the end of the conductive pin 301 (ie, the axial direction of the LED fluorescent lamp) Switch 334;

The telescopic device 332 is provided with a stop member 337. The stop member 337 controls the amplitude of the movement of the telescopic device 332 (ie, the extension of the telescopic device 332 extends out of the base body); the telescopic device 332 is provided with two telescopic rods 335. One end is connected to the telescopic device 332, and the other end is inserted on the fixing portion 336. A telescopic rod 335 is adjacent to the micro switch 334; and the telescopic rod 335 is sleeved with a spring 333. When the lamp cap 3 is correctly mounted to the lamp holder, the conductive pin 301 is inserted into the lamp holder (not shown); due to the pressing of the lamp holder, the telescopic device 332 moves in the opposite direction to the insertion of the conductive pin 301 into the lamp holder. A telescopic rod 335 near the micro switch 334 activates the micro switch 334 to effect connection of the conductive pin 301 to the power source 5.

The micro lamp of the LED fluorescent lamp of the embodiment of the present invention may be provided with the micro switch. This greatly reduces the damage caused by leakage current when the installer installs the LED fluorescent lamp. It can also meet the requirements of safety certification.

When the LED fluorescent lamp is not mounted to the socket (or when the LED fluorescent lamp is taken out from the socket), the telescopic device 332 moves to the outside of the base body due to the spring tension. The micro switch 334 is reset to disconnect the power source 5 from the conductive pin 301.

FIG. 26B is a schematic structural view of a lamp cap structure according to another embodiment of the present invention. Lamp head 3, containing:

The base body 300, the power source 5 (not shown), and the conductive pin 301a disposed at the top end of the base, and the telescopic device 332 extending from the end of the conductive pin 301a (ie, the axial direction of the LED fluorescent lamp) protrudes from the base, and the micro-motion The retaining member 337 is provided with a stop member 337. The stop member 337 controls the amplitude of the movement of the telescopic device 332 (ie, the extension of the telescopic device 332 extends out of the base body); the retaining member 337 is further provided with a fixed spring. Fixed point of 333. One end of the spring 333 is fixed to the fixing point, and the other end is fixed to the fixing portion 336. When the lamp cap 3 is correctly mounted to the lamp holder, the conductive pin 301a is inserted into the lamp holder (not shown); due to the pressing of the lamp holder, the telescopic device 332 moves in the opposite direction to the insertion of the conductive pin 301a into the lamp holder, by setting The protrusion 338 on the telescopic device 332 facing the fixing portion 336 triggers the micro switch 334 to realize the connection of the conductive pin 301a to the power source 5.

The micro lamp of the LED fluorescent lamp of the embodiment of the present invention may be provided with the micro switch. In the above solution, the telescopic device 332 is intermittently sleeved around the conductive pin 301a.

When the LED fluorescent lamp is not mounted to the lamp holder (or when the LED fluorescent lamp is taken out from the lamp holder), the telescopic device 332 moves to the outside of the lamp cap due to the spring tension. The micro switch 334 is reset to disconnect the power source 5 from the conductive pin 301a.

FIG. 26C is a schematic structural view of a lamp cap structure according to another embodiment of the present invention. Lamp head 3, containing:

The lamp body 300, the power source 5 (not shown), and the conductive pin 301 disposed at the top end of the lamp cap, and the telescopic device 332 extending from the lamp pin 301 in the direction of the conductive pin 301 (ie, the LED fluorescent lamp axial direction) protrudes from the lamp cap, and the micro-motion The switch 334; the telescopic device 332 is provided with a stop member 337, by which the amplitude of the movement of the telescopic device 332 is controlled (ie, the amplitude of the telescopic device 332 extends out of the base body); the micro switch 334 is disposed at the telescopic device 332. Internal (the telescopic device 332 extends out of the protrusion of the lamp cap), the micro switch 334 It is sandwiched between two springs with different spring constants (spring 333a and spring 333b). When the lamp cap 3 is correctly mounted to the lamp holder, the conductive pin 301 is inserted into the lamp holder (not shown); due to the pressing of the lamp holder, the telescopic device 332 moves in the opposite direction to the insertion of the conductive pin 301 into the lamp holder. The micro switch 334 is triggered by the action of two springs with different elastic coefficients to realize the connection of the conductive pin 301 and the power source 5.

The micro lamp of the LED fluorescent lamp of the embodiment of the present invention may be provided with the micro switch. This greatly reduces the damage caused by leakage current when the installer installs the LED fluorescent lamp. Since the LED fluorescent lamp is only correctly installed, the connection of the conductive pin 301 and the power source 5 is realized only after the micro switch is operated.

In the above solution, one end of the spring 333b is connected to the micro switch 334, and the other end is fixed to the fixing portion. The spring 333a and the spring 333b can be operated when an extremely small force is applied. Preferably, the spring 333a is subjected to a force of 0.5 to 1 N; and the spring 333b is operated at a force of 3 to 4 N.

In the case where the LED fluorescent lamp is not mounted to the lamp holder, the micro switch 334 operates due to the tension of the spring, and the power source 5 is disconnected from the conductive pin 301.

FIG. 26D is a schematic structural view of a base structure according to another embodiment of the present invention. Lamp head 3, containing:

The base body 300, the power source 5 (not shown), and the conductive pin 301 having the tip disposed at the top end of the base body 300 and extending at the end of the conductive pin 301 (ie, the axial direction of the LED fluorescent lamp) extend out of the cap body 332 2, a relatively spaced apart elastic piece 334a; a telescopic device 332 is provided with a stop member, by which the amplitude of the movement of the telescopic device 332 is controlled (ie, the amplitude of the telescopic device 332 extends out of the base body); There is a telescopic rod 335. The telescopic rod 335 is provided with a conductive member 338. The spring 333 is sleeved on the telescopic rod 335, and one end thereof is fixed to the stop member, and the other end is fixed to the fixing portion 336. When the lamp cap 3 is correctly mounted to the lamp holder, the conductive pin 301 is inserted into the lamp holder (not shown); due to the pressing of the lamp holder, the telescopic device 332 moves in the opposite direction to the insertion of the conductive pin 301 into the lamp holder. The conductive member 338 is inserted between the elastic pieces 334a, and the two elastic pieces 334a are electrically connected to realize the connection of the conductive pin 301 and the power source 5.

The same lamp cap is disposed on both sides of the LED fluorescent lamp of the embodiment of the present invention. This greatly reduces the damage caused by leakage current when the installer installs the LED fluorescent lamp. At the same time meet the requirements of safety certification.

In the case where the LED fluorescent lamp is not mounted to the lamp holder, the power source 5 is disconnected from the conductive pin 301 due to the tension of the spring.

In the above solution, the two opposite and spaced elastic pieces 334a are substantially splayed or horn shaped. The elastic piece 334a is preferably made of a copper material.

FIG. 26E is a schematic structural view of a lamp cap structure according to another embodiment of the present invention. Lamp head 3, containing:

The base body 300, the power source 5, and the conductive pin 301 disposed at the top end of the base body 300,

One end that can be moved along the direction of the conductive pin 301 (ie, the axial direction of the LED fluorescent lamp) protrudes from the telescopic device 332 of the cap body, and the elastic piece 334a is integrally formed into an opening shape; the telescopic device 332 is provided with a stop member, and the stop member is controlled by the stop member The extension of the telescopic device 332 (ie, the extension of the telescopic device 332 extends from the base of the lamp body); the telescopic device 332 is provided with a telescopic rod 335 disposed at an end of the telescopic rod 335, and the opening of the elastic piece 334a faces the power source 5 The spring 333 is sleeved on the telescopic rod 335, one end of which is fixed to the stop member, and the other end is fixed to the power source 5. When the lamp cap 3 is correctly mounted to the lamp holder, the conductive pin 301 is inserted into the lamp holder (not shown); due to the pressing of the lamp holder, the telescopic device 332 moves in the opposite direction to the insertion of the conductive pin 301 into the lamp holder. The opening of the elastic piece 334a is snapped onto a predetermined connection portion of the power source 5 to electrically connect the conductive pin 301 with the power source 5. In the case where the LED fluorescent lamp is not mounted to the lamp holder, the power source 5 is disconnected from the conductive pin 301 due to the tension of the spring.

FIG. 26F is a schematic structural view of a base structure according to another embodiment of the present invention. Lamp head 3, containing:

One end that can be moved along the direction of the conductive pin 301 (ie, the axial direction of the LED fluorescent lamp) protrudes from the telescopic device 332 of the cap body, and the elastic piece 334a is integrally formed into an opening shape; the telescopic device 332 is provided with a stop member, and the stop member is controlled by the stop member The amplitude of the movement of the telescopic device 332 (ie, the extension of the telescopic device 332 protruding from the base of the lamp body); the telescopic device 332 is provided with a telescopic rod, the telescopic rod 335 is hollowed out in the middle portion of the power supply 5; the reed is provided on the power source 5 When the lamp holder 3 is correctly mounted to the lamp holder, the conductive pin 301 is inserted into the lamp holder (not shown); the conductive pin 301 is realized because the hollow structure reed of the telescopic rod contacts the contact on the power source 5 through the hollow structure. Electrical connection to the power source 5. In the case that the LED fluorescent lamp is not mounted to the lamp holder, due to the tension of the spring, the telescopic rod is sandwiched between the reed and the contact to realize the power supply 5 and The conductive pin 301 is broken.

The same lamp with a protection switch is disposed on both sides of the LED fluorescent lamp of the embodiment of the present invention. This greatly reduces the damage caused by leakage current when the installer installs the LED fluorescent lamp. At the same time meet the requirements of safety certification.

In the above solution, the telescopic rod 335 adopts a flat elongated structure, and the middle portion adopts a hollow structure. When the LED fluorescent lamp is not mounted to the socket, the end of the telescopic rod 335 is sandwiched between the reed and the contact to realize the power supply 5 Physical disconnection from the conductive needle 301.

In the above solution, the reeds disposed on the power source 5 may be arranged in a bridge shape, and the reeds facing the contacts are disposed on the bridge surface. Generally, the flat elongated telescopic rods pass through the bridge arches, and the end clamps thereof Between the reed and the contact. The power source 5 and the conductive pin 301 are physically disconnected.

In the above solution, the length of the telescopic device 332 extending beyond the lamp cap does not exceed the length of the conductive pin of the lamp cap. Preferably, the length of the telescopic device 332 extending from the base is 20% to 95% of the length of the conductive needle of the base.

FIG. 27 is a schematic structural diagram of an LED fluorescent lamp according to an embodiment of the present invention. The LED fluorescent lamp 100 includes: a lamp tube 1 and a lamp cap 3 (in order to embody the lamp head design of the solution of the present invention, the ratio of the lamp cap to the lamp tube is enlarged, in practice The length of the lamp cap is about 9.0mm-70mm, and the lamp tube is 254mm-2000mm (that is, 1in.-8in.). The lamp tube 1 is respectively provided with a lamp cap 3 with a protection switch. The lamp cap 3 is provided with a conductive pin 301 and a telescopic device 332. The lamp cap 3 is further provided with a micro switch 334 and a lighting circuit 5 module. The LED fluorescent lamp 100 is correct. When mounted to the socket (not shown), the micro switch 334 is triggered by the telescopic device 332 to electrically connect the power source 5 to the mains, thereby illuminating the LED assembly (not shown) in the LED fluorescent lamp 100.

The implementation of the LED straight tube lamp of the present invention in various embodiments has been previously described. It should be noted that in various embodiments, for the same LED straight tube lamp, "the glass tube and the lamp cap are fixed by a high thermal conductivity silicone" and "the glass tube is wrapped with a heat shrinkable tube". "The flexible board is made of flexible circuit board", "the flexible circuit board is a single layer patterned metal circuit layer structure or a single layer of patterned metal circuit layer plus a layer of dielectric layer" "Layer structure", "flexible circuit board includes a free portion or no free portion for electrical connection", "the inner surface of the glass tube is coated with an adhesive film", and "the inner surface of the glass tube is coated with a diffusion film" "The light source cover has a diffusion diaphragm", "the inner wall of the glass tube is coated with a reflective film", "the light source has a bracket", "the power supply has a combination of a long and short circuit board", and "the lamp has a protective switch at both ends thereof" Among the features of the structure of the lamp cap, etc., may only include One or more of the technical features.

In addition, the "flexible circuit board for the lamp board", the flexible circuit board is a single layer patterned metal circuit layer structure or a single layer of patterned metal circuit layer plus a layer of dielectric The content of the two-layer structure of the layer may be selected from one or a combination thereof including the related technical features in the embodiment, wherein the content of the "glass lamp tube and the lamp cap is fixed by using a high thermal conductivity silica gel" It may be selected from one or a combination thereof including the related technical features in the embodiments, wherein the content of "encapsulating the glass bulb with the heat shrinkable tube" may be selected from the related technical features included in the embodiment. One or a combination thereof, wherein the content of "the inner peripheral surface of the glass bulb is coated with an adhesive film" may be selected from one or a combination thereof including the related technical features in the embodiment, wherein The content of the inner circumference of the glass bulb coated with the diffusion film may be selected from one or a combination thereof including the related technical features in the embodiment, wherein the content of the "light source cover with the diffusion film" is optional. Since it contains One or a combination of the related technical features in the embodiment, wherein the content of "the inner wall of the glass bulb is coated with a reflective film" may be selected from one or a combination thereof including the related technical features in the embodiment. The content in which the "light source has a support" may be selected from one or a combination thereof including the related technical features in the embodiment.

For example, in a flexible circuit board using a flexible circuit board, the flexible circuit board and the output end of the power source are connected by wire bonding or the flexible circuit board and the power supply. Solder between the outputs. In addition, the flexible circuit board is a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a double layer structure of a dielectric layer; the flexible circuit is soft The board comprises a free portion or a double layer structure without a free portion and directly connected to the power supply through a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a dielectric layer The design of the flexible connection, the flexible circuit board can coat the circuit protection layer of the ink material on the surface, and realize the function of the reflection film by increasing the width in the circumferential direction.

For example, in the inner peripheral surface of the glass bulb is coated with a diffusion film, and the composition of the diffusion coating layer includes at least one of calcium carbonate, calcium halophosphate, and alumina, and a thickener and ceramic activated carbon. In addition, the diffusion film may also be a diffusion film and covered outside the light source.

For example, in the inner wall of the glass bulb is coated with a reflective film, the light source may be disposed on the reflective film, in the opening of the reflective film, or on the side of the reflective film.

For example, in a light source design, the light source includes a bracket having a groove, and an LED die disposed in the groove; the bracket having a first sidewall disposed along a length of the glass bulb, And along a second sidewall disposed in a width direction of the glass bulb, the first sidewall being lower than the second sidewall.

For example, in a power supply design, the assembly of the long and short circuit boards has a long circuit board and a short circuit board, and the long circuit board and the short circuit board are fixed to each other and fixed by a bonding method, and the short circuit board is located near the periphery of the long circuit board. . The short circuit board has a power module, which constitutes a power supply as a whole.

That is to say, the above features can be arbitrarily arranged and combined, and used for the improvement of the LED straight tube lamp. Although the present invention has been disclosed above, the present invention is not limited thereto. Any changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be determined by the scope defined by the appended claims.

Claims

An LED straight tube lamp comprises: a glass bulb and a lamp cap disposed at one end of the glass bulb; a power source disposed in the lamp cap; and a lamp panel disposed in the glass bulb The light board is provided with at least one light source; the light source and the power source are electrically connected through the light board; wherein the glass tube and the lamp head are fixed by using a silica gel, and the power source comprises a circuit a board and a power module, the board comprising a single layer of patterned metal lines, the length of the board being greater than a length of the glass tube, the board passing through the single layer of patterned metal lines The circuit board constitutes an electrical connection.
The LED straight tube lamp according to claim 1, wherein the silica gel is a highly thermally conductive silica gel having a thermal conductivity greater than 0.7 w/m.k.
The LED straight tube lamp of claim 1 wherein said glass tube is wrapped with a heat shrinkable tube.
The LED straight tube lamp according to claim 3, wherein the heat shrinkable tube has a thickness ranging from 20 μm to 200 μm.
The LED straight tube lamp according to claim 1, wherein an inner wall of the glass bulb forms a rough surface, and an outer surface of the glass bulb is a smooth surface.
The LED straight tube lamp of claim 1 wherein said power module is electrically coupled to said circuit board and to said single layer patterned metal circuit layer.
The LED straight tube lamp of claim 1 wherein said power module is directly electrically coupled to said single layer patterned metal circuit layer.
The LED straight tube lamp of claim 1 wherein said light panel further comprises a dielectric layer, said single layer patterned metal line being on said dielectric layer.
The LED straight tube lamp of claim 1 wherein said single layer of patterned metal lines has a thickness in the range of from 10 [mu]m to 50 [mu]m.
The LED straight tube lamp according to claim 1, wherein the base has a base body, a telescopic device, and a conductive pin.
The LED straight tube lamp according to claim 10, wherein the telescopic device has a telescopically stretchable portion, one end of which is convex outward in the direction of the conductive needle, and the other end of which is disposed in the inner cavity of the base body. .
The LED straight tube lamp of claim 11 wherein said projection has a height that does not exceed a height of said conductive pin.
An LED straight tube lamp comprises: a glass bulb and a lamp cap disposed at one end of the glass bulb; a power source disposed in the lamp cap; and a lamp panel disposed in the glass bulb The light board is provided with at least one light source; the light source and the power source are electrically connected through the light board; wherein the power source comprises a hard circuit board and a power module. The lamp board comprises a flexible circuit board as a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a dielectric layer double layer structure, and the flexible board The length of the flexible circuit board is greater than the length of the rigid circuit board, and the rigid circuit board and the flexible circuit board are attached to each other and located near the periphery of the flexible circuit board to form a circuit board assembly.
The LED straight tube lamp of claim 13 wherein said single layer patterned metal line has a thickness in the range of from 10 [mu]m to 50 [mu]m.
The LED straight tube lamp according to claim 13, wherein the inner wall of the glass bulb forms a rough surface and has a roughness Ra of 0.1 to 40 μm.
An LED straight tube lamp comprising: a glass bulb and two lamp caps respectively disposed at two ends of the glass bulb; a power source disposed in the lamp cap, having a first circuit board and fixed to the first a power module on a circuit board; a light board disposed in the glass tube, having a second circuit board, the light board is provided with a light source; and the light source and the power source pass the The second circuit board is electrically connected; wherein the glass tube is wrapped with a heat shrinkable tube and the glass tube and the lamp holder are fixed by a high thermal conductivity silicone, and the second circuit board is a flexible circuit The flexible board is a single layer patterned metal circuit layer structure or a single layer patterned metal circuit layer plus a double layer structure of a dielectric layer, and the length is greater than the length of the glass tube, the first The length of the two circuit boards is greater than the length of the first circuit board, and the first circuit board is adhered to the second circuit board and located near the periphery of the second circuit board.