WO2009152688A1

WO2009152688A1 - Led daylight lamp

Info

Publication number: WO2009152688A1
Application number: PCT/CN2009/000612
Authority: WO
Inventors: 孙奕斌
Original assignee: Sun Yibin
Priority date: 2008-06-17
Filing date: 2009-06-01
Publication date: 2009-12-23
Also published as: CN201259099Y

Abstract

A LED daylight lamp, has a LED lamp board (101)，a transparent outer sleeve (102) provided on the outer part of the LED lamp board (101), and an inner metal sleeve (105) set in the transparent outer sleeve (102). The inner side of the inner metal sleeve (105) is axially provided with two opponent chutes (202). The LED lamp board (101) is fixed into the chutes (202). The LED luminescent surface on the LED lamp board (101) faces away from the cavity body of the inner metal sleeve (105).

Description

LED fluorescent light

Technical field

The invention relates to the field of illumination, and in particular to an LED fluorescent lamp. Background technique

LED fluorescent lamps are widely used due to their low energy consumption and environmental protection. LED fluorescent lamps are usually provided with LEDs soldered with LEDs in a transparent or translucent tube made of non-metallic materials such as PC, glass or PMMA. Light board composition. The structure of a relatively popular LED fluorescent lamp is as follows: The LED fluorescent lamp comprises a transparent or translucent outer sleeve made of non-metallic material such as PC, glass or PMMA, and an LED light board is arranged inside the outer sleeve. The power drive module on the LED panel is placed in the end of the outer sleeve, such as on the back of the LED panel. The LED fluorescent lamp having the above structure has the following disadvantages:

1. Since the LED light board (including the power supply driving module) has a certain weight, it is necessary to make the outer tube thicker to ensure that the structure of the LED fluorescent lamp is firm so that it does not bend toward the both ends in the axial direction.

2. Since the LED light board and the power drive module generate heat during the working process, the prior art LED fluorescent lamp structure is not conducive to heat dissipation, and the heat dissipation of the lamp tube is poor, and the lamp tube overheating will affect the LED light board, and The normal working quality of the electronic components on the power drive module affects the service life of the LED fluorescent lamp. Summary of the invention

The first object of the embodiment of the present invention is to provide an LED fluorescent lamp which is more rigid in structure and better in heat dissipation.

An LED fluorescent lamp according to an embodiment of the present invention includes: a light transmissive outer sleeve (102), and a metal inner sleeve (105) is disposed in the light transmissive outer sleeve (102), The metal inner sleeve (105) is open in the axial direction,

An LED light board (101) is fixed at an opening of the metal inner sleeve (105);

The LED light emitting surface on the LED light panel (101) faces away from the metal inner sleeve (105). As can be seen from the above, the LED fluorescent lamp of the embodiment of the present invention has the following advantages over the prior art.

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1. Since the LED fluorescent lamp of the embodiment of the invention adopts a double-layered sleeve structure, in particular, wherein the metal inner sleeve has a high hardness, the LED fluorescent lamp can have a firm structure and avoid bending of the LED daylight to both ends of the axial direction.

2. Since the axial hardness of the LED fluorescent lamp of the present embodiment can be ensured by the metal inner sleeve 105, the LED fluorescent lamp using the structure can make the outer sleeve for light transmission as thin as possible, so that the LED fluorescent lamp has a high height. Light transmittance, as much as possible to achieve better lighting effects.

3. Since the inner sleeve 105 on the back of the LED fluorescent lamp is made of metal, its thermal conductivity is good, which is beneficial to the heat dissipation of the LED fluorescent lamp during operation, so that the operation of the LED fluorescent lamp is more stable and the service life is longer.

4. The metal inner sleeve 105 can also be used to shield the circuit structure of the LED fluorescent lamp to prevent external electrical interference and ensure optimal illumination effect. DRAWINGS

The drawings described herein are provided to provide a further understanding of the invention, and constitute a part of this application.

1 is a schematic view showing the structural assembly of an LED fluorescent lamp using an aluminum inner sleeve 105 in Embodiment 1 of the present invention;

2 is a schematic structural view of an outer sleeve, an inner sleeve, an LED light board, and a power driving module according to Embodiment 1 of the present invention;

3 is a schematic view of an inner sleeve 105 according to Embodiment 1 of the present invention; FIG. 4 is a view showing an inner side of the light-transmitting outer sleeve 102 and along the axial direction in the first embodiment of the present invention; A schematic view of two opposing card strips 501.

FIG. 5 is a schematic perspective structural view of an LED fluorescent lamp according to Embodiment 2 of the present invention; FIG. 6 is a schematic perspective structural view of an LED fluorescent lamp according to Embodiment 3 of the present invention. detailed description

The invention is described in detail below with reference to the accompanying drawings and specific embodiments. Example 1:

The structure of the LED fluorescent lamp of this embodiment is as shown in FIG. 1. The fluorescent lamp of this embodiment includes:

The LED light board 101, the light-transmissive outer sleeve 102, the metal inner sleeve 105, and the power drive module 106. The light transmissive outer sleeve 102 is disposed outside the LED light panel 101, and the metal inner sleeve 105 is disposed inside the light transmissive outer sleeve 102. The metal inner sleeve 105 can be, but is not limited to, an aluminum inner sleeve which is light in weight, good in thermal conductivity, and glossy.

Wherein, the metal inner sleeve 105 has an axial opening, the LED light board 101 is fixed at the axial opening of the metal inner sleeve 105, and the LED light emitting surface of the LED light board 101 faces away from the cavity of the inner sleeve 105. When the power is on, the LED on the LED panel emits light, and the light is radiated to the outside through the transparent outer sleeve 102 to achieve illumination.

It can be seen from the above that the LED fluorescent lamp of the embodiment of the invention has the following advantages over the prior art:

2. Since the axial hardness of the LED fluorescent lamp of the embodiment can be ensured by the metal inner sleeve 105, the LED fluorescent lamp using the structure can make the outer sleeve for light transmission as thin as possible, so that the LED neon light has a comparative High light transmittance, as much as possible to achieve better lighting effects.

3. Since the inner sleeve 105 on the back of the LED fluorescent lamp is made of metal, its thermal conductivity is good. It is beneficial to the heat dissipation of the LED fluorescent lamp during operation, so that the operation of the LED fluorescent lamp is more stable and the service life is longer.

4. The metal inner sleeve 105 can also be used to shield the circuit structure of the LED fluorescent lamp from external interference, thereby ensuring an optimal luminous effect. Wherein, the insulator is used as the light-transmissive outer sleeve 102, and the electrical performance of the LED fluorescent lamp can be strengthened to ensure electrical safety. In addition, in the embodiment, the LED lamp panel 101 can be fixed at the axial opening of the metal inner sleeve 105 by screw fixing or glue fixing. As a preferred embodiment of the present embodiment, a manner as shown in FIG. 1 may be adopted: two opposite sliding slots 202 are disposed along the axial direction at the opening of the metal inner sleeve 105, and the LED light board is disposed during installation. The substrate edge of the 101 is inserted into the recess 202 such that the substrate side edge of the LED panel 101 is confined within the chute 202 to secure the LED panel 101 to the opening of the metal inner sleeve 105. In addition, in order to prevent the inner sleeve 105 from rotating in the light-transmitting outer sleeve 102, the illumination surface of the LED is not fixed, affecting the illumination effect, and affecting the user's use feeling, as shown in FIG. 4: in the light-transmitting outer sleeve 102 The inner surface is oppositely disposed with two positioning clips 501 for fixing the position of the metal inner sleeve 105, so that the metal inner sleeve 105 P is located under the two positioning strips 501, and the arrangement may be a fixed LED light board 101. Added further protection. The inner sleeve 105 of the embodiment adopts a metal material, so that the structure behind the LED light board 101 is invisible, so that the appearance of the LED fluorescent lamp is more beautiful. It should be noted that, in this embodiment, the power driving module 106 of the LED light board 101 can be disposed on the back surface of the LED light board 101 so that it is located in the inner cavity of the metal inner sleeve 105, but is not limited thereto. For example, in the implementation, the power driving module 106 may be disposed at two ends or one end of the outer sleeve, or the power driving module 106 may be disposed outside the outer sleeve 102, as shown in FIG. 5 and FIG. It is disposed in the lamp cap located at one end or both ends of the outer sleeve 102, or is disposed in the bracket of the lamp tube. In this embodiment, as shown in FIG. 1, FIG. 2, and FIG. 3, a horizontal strip 201 may be disposed on the inner side of the axial opening of the inner sleeve 105 along the axial direction of the inner sleeve 105. The power driving module 106 can be disposed in the cavity between the horizontal bar 201 and the metal inner sleeve 105, so that the fixing of the components in the LED fluorescent lamp is more orderly and difficult to move, and the power driving module 106 and the LED light board 101 are prevented from being moved. collision.

It should be noted that the horizontal bar 201 can be, but is not limited to, a metal material (such as aluminum), so that the horizontal bar 201 can isolate the LED light board 101 and the power driving module 106 in addition to the above fixed power driving module 106. The utility model also has the advantages of heat dissipation, and can isolate the electromagnetic interference of the LED lamp board 101 and the power driving module 106, thereby increasing the effect of electromagnetic shielding.

The two rib pairs constituting the chute 202 in this embodiment may be composed of two continuous ribs or may be composed of discontinuous bumps on two straight lines.

Example 2:

Referring to FIG. 5, this embodiment differs from Embodiment 1 in that:

In this embodiment, the power driving module 706 is disposed in the power driving box 704 outside the end of the light-transmitting outer tube 102, and the input end of the power driving module 706 is electrically connected to the external input power source through the ejector pin of the power driving box 704. The output terminal is electrically connected to the LED panel 101 to supply power to the LED panel 101 to drive the LED panel 101 to operate.

It can be seen that, in the present embodiment, the power driving module 706 is externally disposed: disposed in the power driving box 704 outside the end of the light-transmitting outer tube 102, instead of being disposed in the metal inner sleeve as described in the embodiment 1. The inside of the tube 105. According to the technical solution of the embodiment, in addition to the technical solution described in the first embodiment, the following beneficial effects can be obtained:

1. Since the power driving module 706 is placed separately from the LED light board 101, the electromagnetic interference between the two can be improved by using a relatively simple structure, which can improve the electrical performance of the LED fluorescent lamp, reduce the flicker of the LED, and improve the lighting effect.

2. Since the power driving module 706 is disposed outside the end of the transparent outer sleeve, compared with the technical solution in the first embodiment, the temperature environment in the metal sleeve can be further improved to ensure the LED light board 101. Normal operation, prolong its service life; at the same time, it is also beneficial to improve the temperature environment of the power supply driving module 706, ensure the normal operation of the power driving module 706, and prolong its service life.

3. Since the power driving module 706 is disposed in the power driving box 704 outside the end of the transparent outer sleeve 102, when the power driving module 706 is damaged, the maintenance personnel can directly disassemble the power driving box 704 and take out the power driving module 706 for maintenance. The power supply driving module 706 can be taken out for maintenance without removing the light-transmitting outer sleeve 102 and the metal inner sleeve 105 as in the prior art. It can be seen that the application of the technical solution can facilitate the maintenance of the product. In particular, for the consumer user, when the power drive module 706 is damaged, only the power drive box 704 needs to be removed, and the power drive box 704 lights can be sent back to the maintenance manufacturer without having to send the entire elongated LED device. Return to the maintenance home. It can be seen that the application of the technical solution is also convenient for the use of the end consumer. It should be noted that, in the present embodiment, the volume of the power supply driving box 704 in which the base of the power driving module 706 is internally provided is larger than the volume of the left base 104, but the present invention is not limited thereto. . In addition, an inner cover 709 is further disposed at the base of the power drive box 704. The inner cover 709 limits the power drive module 706 between the power drive box 704 and the inner cover 709. The inner cover 709 is fixedly sleeved. Outside the right plug 106. Since the inner cover 709 is provided, the power supply driving box 704 is sleeved with the light-transmitting outer sleeve 102 by providing the inner cover 709, and the power supply driving box 704 can be adapted to the different thickness of the light-emitting tube 101 by changing the inner diameter of the inner cover 709. In practice, for the same internal user to set the lamp cap of the power drive module 706, the inner cover 709 of different inner diameters may be selected according to the size of the lamp to be adapted, so that the inner diameter of the inner cover 709 is blocked with the current lamp. The size of the head is adapted. It can be seen that the application of the technical solution is also beneficial to improve the key components of the LED: the internal compatibility of the power-driven lamp cap can be reduced, which is advantageous for reducing production cost and facilitating production. In addition, in order to further improve the stability of the LED lighting device, the vent hole 111 may be further disposed on the side of the power driving box 704 to further improve the temperature environment of the power driving module 706, wherein the venting holes 711 may be round holes or For square holes or other shapes. Embodiment 3: Referring to FIG. 6, the difference from FIG. 5 is as follows: In this embodiment, a power supply driving box 704 is disposed outside the two ends of the light-transmitting outer sleeve 102, and the structure of each power driving box 704 is The power drive box 704 in Figure 5 is the same and will not be described here. In addition to the advantageous effects of the LED fluorescent lamp shown in FIG. 5, the LED fluorescent lamp shown in FIG. 6 is particularly used for a relatively large load LED fluorescent lamp. The technical solutions provided by the embodiments of the present invention are described in detail above. The principles and implementation manners of the embodiments of the present invention are described in the following. The description of the embodiments is only used to help understand the embodiments of the present invention. The present invention is not limited by the scope of the present invention, and the description of the present invention is not limited to the details of the present invention.

Claims

Claim

What is claimed is: 1. An LED fluorescent lamp, comprising: a light transmissive outer sleeve, wherein a metal inner sleeve (105) is disposed in the light transmissive outer sleeve (102),

The metal inner sleeve (105) is axially opened, and an LED light board (101) is fixed at an opening of the metal inner sleeve (105);

The LED light emitting surface on the LED light panel (101) faces away from the metal inner sleeve (105).

2. The LED fluorescent lamp according to claim 1, wherein two opposite sliding grooves (202) are disposed in an axial direction of the opening of the metal inner sleeve (105), and the inner metal sleeve is The LED light board (101) is fixed at the opening of (105). Specifically, the substrate side edge of the LED light board (101) is located in the sliding slot (202).

The LED fluorescent lamp according to claim 1, wherein a power supply driving box (704) is fixed to an outer side of an end portion of the light-transmitting outer sleeve (102); and the power driving box (704) is inside A power driving module (708) is provided, wherein an input end of the power driving module is used for accessing an external power source, and an output end is electrically connected to the LED light board for driving the LED light board (101) to work. .

4. The LED fluorescent lamp according to claim 1, wherein a power supply driving box (704) is respectively fixed on both outer sides of the end portions of the light-transmitting outer sleeve (102); and the power supply driving boxes (704) are respectively arranged. The power supply driving module (708) is respectively disposed therein; wherein the input end of the power driving module is electrically connected to an external input power source, and the output end is electrically connected to the LED lighting tube for driving the LED lighting tube to operate.

The LED fluorescent lamp according to claim 3 or 4, wherein a vent hole is provided at a side of the power supply driving case.

The LED fluorescent lamp according to claim 3 or 4, wherein an inner cover is further disposed at the power drive box port, and the power drive module is limited to the location Between the power drive box and the inner cover;

The inner cover is fixedly sleeved at an outer end of the light transmissive outer sleeve.

The LED fluorescent lamp according to any one of claims 1 to 4, characterized in that, in the axial opening of the metal inner sleeve (105), along the axial direction of the metal inner sleeve (105) , also has a horizontal bar (201),

A power driving module (106) of the LED lamp panel (101) is disposed in a cavity between the horizontal strip (201) and the metal inner sleeve (105).

8. The LED fluorescent lamp according to claim 7, wherein the horizontal strip (201) is a metal strip.

The LED fluorescent lamp according to any one of claims 1 to 4, wherein a positioning strip (501) is disposed on an inner surface of the light transmissive outer sleeve (102) for fixing the metal inside The position of the bushing (105).

The LED fluorescent lamp according to any one of claims 1 to 4, characterized in that the metal inner sleeve (105) is an aluminum inner sleeve.