CN211450400U

CN211450400U - LED bulb

Info

Publication number: CN211450400U
Application number: CN201922138629.3U
Authority: CN
Inventors: 高延增; 蒋洪奎; 黄温昌
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-09-08
Anticipated expiration: 2029-12-03
Also published as: EP3832203A1

Abstract

The utility model provides a LED bulb, including printing opacity lamp body, lamp holder, stem and light source subassembly, the lamp holder closing cap is in the opening part of printing opacity lamp body, and the stem holding is in the printing opacity lamp body and the opening of closing cap printing opacity lamp body, and on the light source subassembly was fixed in the stem, the light source subassembly included base plate, LED chipset, two electrodes, constant current drive module and fluorescent glue, and the electrode is connected with the lamp holder electricity, and constant current drive module is connected with LED chipset and electrode electricity. The utility model discloses a with LED chipset and the combination encapsulation of constant current drive module on same light source subassembly, need not to set up extra drive assembly, follow-up equipment process has been reduced, only need adopt the light source subassembly to replace the tungsten filament and can make into the LED filament lamp with traditional incandescent lamp during production, thereby the production technology of having solved the LED filament lamp effectively can't follow the compatible technical problem of traditional incandescent lamp production technology, the transformation cost of production facility and production technology has been saved, the production efficiency of LED filament lamp has been improved.

Description

LED bulb

Technical Field

The utility model belongs to the technical field of the LED lamps and lanterns, more specifically say, relate to a LED bulb.

Background

With the gradual increase of energy-saving and environment-friendly consciousness of people, incandescent lamp products with high energy consumption are gradually listed in a obsolete list in all countries, and are replaced by LED filament lamp products with low energy consumption and more extensive application. At present, the LED filament lamp sold on the market is generally assembled by adopting a light source component and a driving component, the process required by the structural design is more, the whole production process cannot be compatible with the traditional incandescent lamp production process, and a manufacturer is required to invest in large manpower and material resources to reform a production line, so that the production cost of the LED filament lamp is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED bulb, including but not limited to the production technology who solves LED filament lamp can't follow the compatible technical problem of traditional incandescent lamp production technology.

In order to achieve the above object, the utility model provides a LED bulb, including printing opacity lamp body, lamp holder, stem and light source subassembly, the lamp holder closing cap in the opening part of printing opacity lamp body, the stem holding in the printing opacity lamp body and closing cap the opening of printing opacity lamp body, the light source subassembly is fixed in on the stem, the light source subassembly includes:

a substrate;

the LED chip group is fixed on the substrate;

the two electrodes are fixed on the substrate and electrically connected with the lamp cap;

the constant current driving module is fixed on the substrate and is electrically connected with the LED chip set and the electrode; and

and the fluorescent glue covers the substrate and wraps the LED chip group and the constant current driving module.

Optionally, a fuse or a fuse resistor is disposed in the lamp cap, and the electrode is electrically connected to the lamp cap through the fuse or the fuse resistor.

Optionally, the light source assembly further comprises:

and the rectifying module is fixed on the substrate, and the constant current driving module is electrically connected with the electrode through the rectifying module.

Optionally, the rectifier module is a bridge stack or a discrete diode.

Optionally, the light-transmitting lamp housing is filled with a high thermal conductive gas.

Optionally, the high thermal conductivity gas is any one of helium, hydrogen, heliox and hydrohelium.

Optionally, the stem includes base, branch and two electric lead-out wires, the bottom closing cap of base the opening of printing opacity lamp body, in order will the inside of printing opacity lamp body encloses to close and forms airtight space, branch is fixed in on the base, two one end of electric lead-out wire stretch into in the airtight space with the electrode connection of light source subassembly, two the other end of electric lead-out wire pass the base with the lamp holder is connected.

Optionally, an exhaust channel is formed inside the base, and an exhaust hole communicated with the exhaust channel is formed in the base.

Optionally, the LED chip group includes a plurality of forward-mounted LED chips or a plurality of flip-chip LED chips arranged at intervals, and the forward-mounted LED chips or the flip-chip LED chips are connected in series and/or in parallel.

Optionally, the light-transmitting lamp envelope is any one of a high borosilicate glass bulb, a soda lime glass bulb and a schottky glass bulb.

The utility model provides a beneficial effect of LED bulb lies in: the LED filament lamp has the advantages that the LED chip group and the constant-current driving module are combined and packaged on the same light source component without arranging an additional driving component, subsequent assembly processes are reduced, the traditional filament lamp can be manufactured into the LED filament lamp only by replacing a tungsten filament with the light source component during production, the technical problem that the production process of the LED filament lamp cannot be compatible with the traditional filament lamp production process is effectively solved, the modification cost of production equipment and the production process is saved, and the production efficiency of the LED filament lamp is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an LED bulb provided by the present invention;

fig. 2 is a schematic structural view of a light source assembly in an LED bulb according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line I-I of FIG. 2;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is an enlarged schematic view of a portion B in fig. 3.

Wherein, in the figures, the respective reference numerals:

the LED lamp comprises a lamp bulb 1, an LED bulb 10, a light-transmitting lamp shell 20, a lamp cap 30, a core column 40, a light source assembly 31, a base 32, a support rod 33, an electric outgoing line 41, a substrate 41, an LED chip assembly 42, an electrode 43, a constant current driving module 44, a conducting wire 45, fluorescent glue 46, a rectifying module 47, a closed space 100, a safety resistor 200, an exhaust channel 311, an exhaust hole 312 and an LED chip 420.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that: when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. When a component is referred to as being "electrically connected" to another component, it can be electrically connected by conductors, or can be electrically connected by radios, or can be connected by various other means capable of carrying electrical signals. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The term "plurality" means two or more unless specifically limited otherwise.

It is right now that the utility model provides a LED bulb explains.

Referring to fig. 1 to 3, the LED bulb 1 includes a light-transmissive lamp housing 10, a lamp cap 20, a stem 30 and a light source assembly 40, wherein, the lamp cap 20 covers the opening of the light-transmitting lamp housing 10, the stem 30 is accommodated in the light-transmitting lamp housing 10, and the stem 30 covers the opening of the light-transmitting lamp housing 10, and the light source assembly 40 is fixed on the stem 30, where the light source assembly 40 includes a substrate 41, an LED chip set 42, two electrodes 43, a constant current driving module 44 and a fluorescent glue 46, wherein the LED chip set 42 is fixed on the substrate 41, the two electrodes 43 are fixed on the substrate 41, preferably the two electrodes 43 are respectively fixed on the opposite ends of the substrate 41, the two electrodes 43 are electrically connected with the lamp cap 20, the constant current driving module 44 is fixed on the substrate 41, the constant current driving module 44 is electrically connected with the LED chip set 42 and the electrodes 43, the fluorescent glue 46 covers the substrate 41, and the LED chip set 42 and the constant current driving module 44 are wrapped by the fluorescent glue 46. It is understood that the light source assembly 40 further includes a conducting wire 45, the conducting wire 45 may be independently disposed or printed on the substrate 41 by using an electronic printing process, and the LED chip set 42 and the electrode 43 are respectively connected to the constant current driving module 44 through the conducting wire 45; here, the constant current driving module 44 is an LED constant current driving chip.

When the LED lamp is used, the lamp holder 20 is inserted into a lamp holder, an external power supply or commercial power supplies power to the constant current driving module 44 through the lamp holder 20 and the electrode 43, the LED chip set 42 is started after the constant current driving module 44 is electrified, and light emitted by the LED chip set 42 is uniformly scattered outwards through the fluorescent glue 46.

The utility model provides a LED bulb 1, the adoption is packaged LED chipset 42 and constant current drive module 44 combination on same light source subassembly 40, need not to set up extra drive assembly, the follow-up equipment process has been reduced, make during production only need adopt light source subassembly 40 to replace the tungsten filament and make into the LED filament lamp with traditional incandescent lamp, thereby the production technology of having solved the LED filament lamp effectively can't follow the compatible technical problem of traditional incandescent lamp production technology, the transformation cost of production facility and production technology has been saved, the production efficiency of LED filament lamp has been improved.

Optionally, referring to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, a fuse or a fuse resistor 200 is disposed in the lamp cap 20, and here, the electrode 43 is electrically connected to the lamp cap 20 through the fuse or the fuse resistor 200, that is, the light source assembly 40 is protected from overcurrent and overheat through the fuse or the fuse resistor 200, so as to ensure safe use of the LED bulb 1.

Optionally, referring to fig. 4, as a specific embodiment of the LED bulb provided by the present invention, the light source assembly 40 further includes a rectifying module 47, the rectifying module 47 is fixed on the substrate 41, and here, the constant current driving module 46 is electrically connected to the electrode 43 through the rectifying module 47. Specifically, the constant current driving module 46, the rectifying module 47 and the electrode 43 are sequentially connected by a wire 45, when the electrode 43 is connected to an external power supply or a commercial power, a current flows through the rectifying module 47, and after the alternating current is converted into a direct current by the rectifying module 47, the direct current flows into the constant current driving module 46, so that the constant current driving module 46 can normally operate. Of course, according to specific situations and requirements, in other embodiments of the present invention, the constant current driving module 46 and the rectifying module 47 can be respectively installed on two light source assemblies, at that time, the LED bulb needs to be assembled with at least one light source assembly having the constant current driving module 46 and at least one light source assembly having the rectifying module 47, the light source assembly having the rectifying module 47 is connected with the current input end of the LED bulb, and the light source assembly having the constant current driving module 46 is connected with the light source assembly having the rectifying module 47.

Optionally, referring to fig. 4, as a specific embodiment of the LED bulb provided by the present invention, the rectifier module 47 is a bridge stack or a discrete diode.

Optionally, referring to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, a high thermal conductive gas is filled in the transparent lamp housing 10. Specifically, the high thermal conductivity gas is any one of helium, hydrogen, a mixture of helium and oxygen, and a mixture of helium and hydrogen. Of course, according to specific situations and requirements, in other embodiments of the present invention, the high thermal conductivity gas may be other inert gases or mixed gases having thermal conductivity, and is not limited herein. Thus, the heat dissipation efficiency of the LED bulb 1 is greatly improved under the assistance of the high heat-conducting gas.

Optionally, please refer to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, the stem 30 includes a base 31, a support rod 32 and two electrical leading-out wires 33, wherein the bottom of the base 31 covers the opening of the light-transmitting lamp housing 10 for enclosing the inside of the light-transmitting lamp housing 10 to form an enclosed space 100, the support rod 32 is fixed on the base 31, one end of the two electrical leading-out wires 33 extends into the enclosed space 100 to be connected with the electrode 43 of the light source assembly 40, and the other end of the two electrical leading-out wires 33 passes through the base 31 to be connected with the lamp holder 20. Specifically, the support rod 32 is fixed on the end surface of the base 31 far away from the opening of the light-transmitting lamp housing 10, and is used for supporting the light source assembly 40, the two electrical outgoing lines 33 penetrate through the base 31 and are used for connecting the light source assembly 40 and the lamp cap 20, and the high heat-conducting gas is filled in the closed space 100, so that heat generated by the light source assembly 40 can be rapidly conducted to the light-transmitting lamp housing 10.

Optionally, referring to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, an exhaust channel 311 is formed inside the base 31, and an exhaust hole 312 is opened on the base 31, and the exhaust hole 312 is communicated with the exhaust channel. Specifically, the exhaust passage 311 penetrates the base 31, and two exhaust holes 312 are formed at opposite ends of the exhaust passage 311 on the base 31, wherein one exhaust hole 312 is communicated with the outside air, and the other exhaust hole 312 is communicated with the enclosed space 100 inside the light-transmitting lamp envelope 10. When the vacuum-pumping process is performed, an external vacuum-pumping device may pump air out of the sealed space 100 through the exhaust passage 311 and the exhaust hole 312; when the high thermal conductivity gas is filled, an external air pump device may fill the high thermal conductivity gas into the enclosed space 100 through the exhaust passage 311 and the exhaust hole 312; after the filling of the high thermal conductivity gas is completed, the inside of the light-transmitting lamp housing 10 can be ensured to form the enclosed space 100 by only plugging the exhaust hole 312 communicated with the outside air, so that the leakage of the high thermal conductivity gas is prevented.

Optionally, please refer to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, the LED chip group 42 includes a plurality of upright LED chips 420 or a plurality of flip LED chips, the plurality of upright LED chips 420 or the plurality of flip LED chips are arranged at intervals, and the plurality of upright LED chips 420 or the plurality of flip LED chips are connected in series and/or in parallel, that is, the plurality of upright LED chips 420 or the plurality of flip LED chips are connected in series or in parallel or in series partially, and the other part is connected in parallel through the wire 45.

Optionally, referring to fig. 1, as a specific embodiment of the LED bulb provided by the present invention, the transparent lamp housing 10 is any one of a high borosilicate glass bulb housing, a soda lime glass bulb housing, and a schottky glass bulb housing. Of course, according to specific situations and requirements, in other embodiments of the present invention, the transparent lamp housing 10 may also be a bulb made of a heat conductive plastic, which is not limited herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

The LED bulb comprises a light-transmitting lamp shell, a lamp holder, a core column and a light source assembly, wherein the lamp holder is covered at an opening of the light-transmitting lamp shell, the core column is contained in the light-transmitting lamp shell and covers the opening of the light-transmitting lamp shell, the light source assembly is fixed on the core column, and the light source assembly comprises:

a substrate;

the LED chip group is fixed on the substrate;

the two electrodes are fixed on the substrate and electrically connected with the lamp cap;

the constant current driving module is fixed on the substrate and is electrically connected with the LED chip set and the electrode; and

and the fluorescent glue covers the substrate and wraps the LED chip group and the constant current driving module.
2. The LED bulb as set forth in claim 1, wherein a fuse or a fuse resistor is disposed within the base, the electrode being electrically connected to the base through the fuse or the fuse resistor.
3. The LED bulb of claim 1, wherein the light source assembly further comprises:

and the rectifying module is fixed on the substrate, and the constant current driving module is electrically connected with the electrode through the rectifying module.
4. The LED bulb of claim 3, wherein the rectification module is a bridge stack or discrete diodes.
5. The LED bulb as claimed in any one of claims 1 to 4, wherein the light-transmissive envelope is filled with a highly thermally conductive gas.
6. The LED bulb as claimed in claim 5, wherein the high thermal conductivity gas is any one of helium, hydrogen, heliox, and heliox.
7. The LED bulb as claimed in claim 5, wherein the stem includes a base, a support rod and two electrical leads, the bottom of the base covers the opening of the light-transmissive lamp housing to enclose the inside of the light-transmissive lamp housing to form a closed space, the support rod is fixed on the base, one end of each of the two electrical leads extends into the closed space and is connected to the electrode of the light source assembly, and the other end of each of the two electrical leads passes through the base and is connected to the lamp holder.
8. The LED bulb as claimed in claim 7, wherein an exhaust channel is formed inside the base, and the base is provided with an exhaust hole communicated with the exhaust channel.
9. The LED bulb as claimed in any one of claims 1 to 4, wherein the LED chip group comprises a plurality of face-up LED chips or a plurality of flip LED chips arranged at intervals, and the plurality of face-up LED chips or the plurality of flip LED chips are connected in series and/or in parallel.
10. The LED bulb as claimed in any one of claims 1 to 4, wherein the light-transmissive envelope is any one of a high borosilicate glass bulb, a soda lime glass bulb, and a Schottky glass bulb.