CN214275383U

CN214275383U - LED fluorescent lamp

Info

Publication number: CN214275383U
Application number: CN202120295767.7U
Authority: CN
Inventors: 陈朝冬
Original assignee: Guizhou Jiahe Lighting Technology Co ltd
Current assignee: Guizhou Jiahe Lighting Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-24
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a LED fluorescent lamp, including the printing opacity shell, the both sides of printing opacity shell are equipped with the radiating seat, the radiating seat with the printing opacity shell encloses to close and forms a closed first appearance chamber, be provided with the light emitting source in the first appearance chamber, the light emitting source includes packaging substrate and luminous chip, the both sides of packaging substrate are provided with the end cover, the end cover will packaging substrate encloses to close and forms a closed second appearance chamber, be provided with drive power supply in the second appearance chamber, luminous chip encapsulation is in packaging substrate's outer wall, and is connected with drive power supply electricity through the wire; an electric connecting post extends from the end face of the heat dissipation seat, one end of the electric connecting post is provided with an electric connecting port for connecting a power supply device, and the other end of the electric connecting post is electrically connected with the driving power supply; the utility model provides a LED fluorescent lamp aims at solving among the prior art that the light efficiency is low, take place stroboscopic problem easily.

Description

LED fluorescent lamp

Technical Field

The application relates to a luminous source, in particular to an LED fluorescent lamp.

Background

Note that the contents described in this section do not represent all the related art.

The G9 lamp is a pin bulb, and the G9 lamps in the market are generally classified into three general categories: the first kind of products adopts one high-voltage lamp bead as light source and translucent diffusion lampshade. The second product is a flexible circuit board, wherein the flexible circuit board is pasted with the paster lamp beads and the driving components, during assembly, the driving part is arranged in a hollow area in the middle of the ceramic column, then the flexible circuit board pasted with the lamp beads is bent along the ceramic wall, and finally the flexible circuit board is fixed by the lampshade. The third type of product adopts glass substrate encapsulation, encapsulates COB light source on glass substrate, welds the stitch to glass substrate.

The three types of G9 lamps are common products in the market, however, the G9 type bulb has some defects: 1. the light emission has obvious directivity, small light emission angle and low product light effect; 2. heat dissipation is inconvenient; 3. after lighting, stroboflash and power instability occur.

Disclosure of Invention

The utility model discloses mainly to above problem, provided a LED fluorescent lamp, aim at solving among the prior art that the light efficiency is low, take place stroboscopic problem easily.

In order to achieve the above object, the utility model provides a LED fluorescent lamp, including the printing opacity shell, the both sides of printing opacity shell are equipped with the radiating seat, the radiating seat will the printing opacity shell encloses to close and forms a closed first appearance chamber, first appearance intracavity is provided with the light emitting source, wherein:

the light-emitting source comprises a packaging substrate and light-emitting chips, wherein end covers are arranged on two sides of the packaging substrate, the end covers enclose the packaging substrate to form a closed second containing cavity, a driving power supply is arranged in the second containing cavity, and the light-emitting chips are packaged on the outer wall of the packaging substrate and are electrically connected with the driving power supply through wires;

the end face of the heat dissipation seat extends to form an electric connecting column, one end of the electric connecting column is provided with an electric connecting port used for being connected with a power supply device, and the other end of the electric connecting column is electrically connected with the driving power supply.

Further, the light-transmitting shell is in threaded connection with the heat dissipation seat.

Furthermore, a conductive spring for electrically connecting the power connection port with the driving power supply is arranged between the heat dissipation seat and the end cover.

Furthermore, the outer side of the package substrate is covered with package glue and fluorescent powder, and the light-emitting chip is wrapped between the package glue and the fluorescent powder.

Furthermore, the package substrate is bent and folded by a rectangular aluminum plate to form a cylindrical structure.

Furthermore, the electric connection port is internally provided with a conductive column and a positioning bulge.

Furthermore, the heat dissipation seat is made of ceramic materials.

Compared with the prior art, the LED fluorescent lamp provided by the utility model has the advantages that the LED light-emitting chip is packaged between the outer wall of the packaging substrate and the fluorescent powder by adopting the cylindrical packaging substrate, so that the purposes of overall light emission and light efficiency improvement can be achieved; the closed second cavity is arranged in the packaging substrate, the driving power supply is assembled in the second cavity and used for isolating high temperature generated by the light-emitting chip, and the purpose of protecting the driving power supply is achieved through the packaging structure so as to achieve no stroboflash and output stable power; other advantages of the present invention are further clarified in the detailed description.

Drawings

Fig. 1 is a three-dimensional structure of an LED fluorescent lamp disclosed in the present application.

Fig. 2 is a schematic diagram of an internal structure of an LED fluorescent lamp disclosed in the present application.

Fig. 3 is a schematic structural diagram of a packaged light emitting chip.

FIG. 4 is an enlarged view of a portion of the structure of an electric pole.

Reference numerals shown in the drawings: 10. a heat dissipation base; 11. connecting a power post; 20. a light-transmissive envelope; 30. a light emitting source; 31. a package substrate; 32. a light emitting chip; 33. an end cap; 34. a drive power supply; 35. a wire; 36. packaging glue; 37. fluorescent powder; 38. a conductive contact; 40. a conductive spring; 110. an electric connection port; 111. a conductive post; 112. positioning the projection; 201. a first cavity; 301. a second cavity.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 4 illustrate an LED fluorescent lamp according to an embodiment of the present invention, which includes a light-transmitting casing 20 made of glass, in some embodiments, the light-transmitting casing 20 includes a cylindrical barrel and a heat dissipation base 10 closing two ends of the cylindrical barrel, so that the light-transmitting casing 20 encloses a closed first cavity 201.

Referring to fig. 2, as can be seen from fig. 2, a light emitting source 30 is disposed in the first closed cavity 201, wherein: the light source 30 includes a package substrate 31 and a light emitting chip 32, in some embodiments, the package substrate 31 is formed by bending and folding a rectangular aluminum plate to form a cylindrical body, two ends of the cylindrical body are sealed by end caps 33, so that the package substrate 31 encloses a closed second cavity 301, and at the same time, the light emitting chip 32 is packaged on the outer circumferential surface of the package substrate 31 by means of COB and is connected to a driving power source 34 by a lead 35 inside, thereby achieving the purpose of overall light emission.

In addition, since the conventional G9 LED lamp has a small volume, and the COB light source packaged on the substrate is limited by space, and the heat dissipation effect is not good, some of the existing G9 LED lamps lack the driving power supply 34, which causes stroboflash after the G9 LED lamp is lit, unstable power, high temperature, and short life, for this reason, in this embodiment, the driving power supply 34 is fixed in the second cavity 301 before the end cap 33 is packaged, so as to avoid the driving power supply 34 from being damaged.

Fig. 4 is an enlarged schematic view of a part of the structure of the end face of the heat sink 10, and it can be seen from the figure that an electrical post 11 extends from the end face of the heat sink 10, one end of the electrical post 11 is provided with an electrical connection port 110 for connecting an external power supply device, and the other end is electrically connected to the driving power supply 34, so that a complete circuit structure is formed; specifically, the electrical contact 110 is provided with a conductive post 11 and a positioning protrusion 112.

In some preferred embodiments, the light-transmissive housing 20 is screwed to the heat sink 10, thereby improving the efficiency of assembly between the housing and the heat sink 10.

In some preferred embodiments, a conductive spring 40 for electrically connecting the power connection port 110 and the driving power source 34 is disposed between the heat sink 10 and the end cap 33, and as can be seen from fig. 2, when assembled, the conductive spring 40 can quickly fix and electrically connect the light-emitting source 30 in the first cavity 201, thereby further simplifying the installation step and improving the production efficiency.

As shown in fig. 3, the outer side of the package substrate 31 is covered with a package adhesive 36 and a phosphor 37, and the light emitting chip 32 is wrapped between the phosphor 37 and the package adhesive 36, so as to achieve the purpose of improving the light efficiency.

In some preferred embodiments, the heat sink 10 is made of a ceramic material, which can be used to improve the heat dissipation effect of the light-emitting source 30.

From a reading of the foregoing detailed description, it will be appreciated by those skilled in the art that the invention can be readily implemented. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the embodiments disclosed, a person skilled in the art can combine different features at will, so as to implement different solutions, and can combine different forms of additional functions to form other solutions. The scope of protection of the application is therefore only limited by the scope of the appended claims.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. The utility model provides a LED fluorescent lamp, includes the printing opacity shell, its characterized in that, the both sides of printing opacity shell are equipped with the radiating seat, the radiating seat will the printing opacity shell encloses to close and forms a closed first appearance chamber, first appearance intracavity is provided with the light emitting source, wherein:

2. The LED fluorescent lamp of claim 1, in which the light-transmissive envelope is threaded to the heat sink.

3. The LED fluorescent lamp of claim 2, wherein a conductive spring is disposed between the heat sink and the end cap to electrically connect the power connection port with the driving power supply.

4. The LED fluorescent lamp of claim 1, wherein the outer side of the package substrate is covered with package glue and phosphor powder, and the light emitting chip is wrapped between the package glue and the phosphor powder.

5. The LED fluorescent lamp of claim 4, wherein the package substrate is bent and folded from a rectangular aluminum sheet to form a cylindrical structure.

6. The LED fluorescent lamp of claim 1, wherein the contact opening is provided with a conductive post and a positioning protrusion.

7. An LED fluorescent lamp as claimed in any one of claims 1 to 6, wherein the heat sink is made of a ceramic material.