CN215764664U

CN215764664U - Glass-packaged built-in driven LEDG9 bulb

Info

Publication number: CN215764664U
Application number: CN202121482182.2U
Authority: CN
Inventors: 曹雪海
Original assignee: Changzhou Fenghao Lighting Electrical Apparatus Co ltd
Current assignee: Changzhou Fenghao Lighting Electrical Apparatus Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-08
Anticipated expiration: 2031-06-30

Abstract

The utility model provides a glass-encapsulated built-in driven LEDG9 bulb, which comprises a sealed transparent glass bulb shell, heat dissipation gas filled in the transparent glass bulb shell, an electrode assembly fixedly arranged on the transparent glass bulb shell, a driving circuit board fixedly arranged in the transparent glass bulb shell, and 3 LED light sources obliquely arranged on the driving circuit board at intervals, wherein the heat dissipation gas is filled in the transparent glass bulb shell; the driving circuit board is provided with a driving circuit comprising an electrolytic capacitor for filtering, the electrolytic capacitor is fixedly arranged in the middle of the upper part of the driving circuit board, the 3 LED light sources are electrically connected with the driving circuit, and the driving circuit board is fixedly inserted and connected with the electrode assembly in the transparent glass bulb shell. Through the improvement of the structure, the utility model can solve the technical problems that when the existing similar bulb is used, the luminous working surface has obvious bright and dark areas, so that the 360-degree range uniform illumination cannot be realized, and the electrolytic capacitor in the driving circuit is easy to damage when flame is sealed in a melting way in the production process, so that the production yield is low.

Description

Glass-packaged built-in driven LEDG9 bulb

Technical Field

The utility model relates to the technical field of LED lamps, in particular to a glass-packaged built-in driven LEDG9 bulb.

Background

The led g9 bulb is a pin type bulb commonly used on european crystal ceiling lights. The existing led g9 type bulb mainly has the following 3 types: in the 1 st type, a plurality of LED patches are fixedly arranged on a substrate and then are assembled with a driving circuit board, a lamp holder and the like into a whole, the luminous efficiency of the LED G9 type bulb is generally not more than 90Lm/W, and the environmental protection capability is poor when the LED G9 type bulb is used. The 2 nd type, single-sided packaging LED bare crystal, diode, driver chip on a transparent ceramic base plate, and coat the fluorescent glue and form a luminophor, put this luminophor and G9 lamp base after combining in the glass bulb shell through the flame melt-seal, recharge the heat-conducting gas and get final product, the light efficiency is generally 110Lm/W, the largest diameter of the bulb shell is generally no more than 16mm, the deficiency of this kind of LEDG9 type bulb is: firstly, the working surface of the luminous body has obvious bright and dark areas, and uniform illumination within a 360-degree range cannot be realized; secondly, the driving circuit has rectification and is not provided with a filter capacitor, so that the light source has obvious stroboscopic phenomenon when the driving circuit is used, and the use experience of a user is influenced. 3, in order to eliminate the stroboflash phenomenon existing in the 2 nd type LED g9 type bulb, 1 filtering electrolytic capacitor is added in the driving circuit, because the driving circuit is arranged in the LED lamp slice on the substrate, the electrolytic capacitor has a large volume and cannot be arranged in the LED lamp slice, the electrolytic capacitor can only be externally connected with the outside of the light-emitting body, the light-emitting body and the electrolytic capacitor are once packaged in the glass bulb shell by adopting the flame packaging technology, then the heat-conducting gas is filled, the luminous efficiency of the type bulb is generally 110Lm/W, the maximum diameter of the bulb shell is generally not more than 16mm, although the improved LED g9 type bulb can solve the stroboflash problem during the light-emitting process, the new problem brought by the disposable packaging after the electrolytic capacitor and the light-emitting body are externally connected is that the electrolytic capacitor is easily damaged during the flame packaging process, so that the production yield is very low, and the mounting design of the driving circuit can not place more electronic elements, the design of a driving circuit is limited, the problem that the working surface of the luminous body has obvious bright and dark areas and cannot be uniformly illuminated in a 360-degree range still exists, the diameter of a bulb shell of the luminous body is difficult to break through 16mm to the maximum due to the structural limitation, and otherwise, the flame is difficult to manufacture into the shape and the size which meet the standard of a lamp holder during sealing by melting.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the utility model provides a glass-enclosed built-in driven LEDG9 bulb of institutional advancement, solve the ubiquitous technical problem that has obvious bright dark space and can not realize 360 scope uniform illumination of the working face of giving out light when using of like bulb among the prior art to and because the electrolytic capacitor that the structure limits is impaired easily when flame encapsulates in the production process makes the technical problem that the production yield is low among the prior art.

The technical scheme of the utility model is as follows: the utility model discloses a built-in driven LEDG9 bulb packaged by glass, which comprises a sealed transparent glass bulb shell and heat dissipation gas filled in the transparent glass bulb shell, and is characterized in that: the LED bulb also comprises an electrode assembly fixedly arranged on the transparent glass bulb shell, a driving circuit board fixedly arranged in the transparent glass bulb shell, and 3 LED light sources obliquely arranged on the driving circuit board at intervals; the driving circuit board is provided with a driving circuit comprising an electrolytic capacitor for filtering, the electrolytic capacitor is fixedly arranged above the driving circuit board and positioned among the 3 LED light sources, and the 3 LED light sources are electrically connected with the driving circuit; the driving circuit board is fixedly inserted and connected with the electrode assembly in the transparent glass bulb shell.

The further scheme is as follows: the transparent glass bulb shell comprises a main body of a transparent glass tube with a circular cross section, a lamp holder formed by hot melting and press sealing the lower end of the main body, and a vacuumizing gas injection end socket formed by hot melting the upper end of the main body after vacuumizing and refilling the inside of the main body with the heat dissipation gas.

The further scheme is as follows: the diameter of the main body of the transparent glass bulb shell is 20 mm.

The further scheme is as follows: the electrode assembly comprises 2 molybdenum foils, 2G 9 lamp pins and 2 needle electrodes; the upper ends of 2G 9 lamp pins are fixedly connected and electrically connected with the lower ends of 1 molybdenum foil respectively, the lower ends of 2 needle electrodes are fixedly connected and electrically connected with the upper ends of 1 molybdenum foil respectively, the parts of the 2 molybdenum foils, 2G 9 lamp pins and 2 needle electrodes, which are connected with the 2 molybdenum foils respectively, are fixedly arranged in the lamp holder of the transparent glass bulb shell, the lower parts of the 2G 9 lamp pins extend out from the lower ends of the lamp holder and form a G9 lamp holder together with the lamp holder, and the upper ends of the 2 needle electrodes extend out into the main body of the transparent glass bulb shell.

The further scheme is as follows: the driving circuit board is a circular plate body, and the diameter of the driving circuit board is smaller than the inner diameter of the main body of the transparent glass bulb shell; the drive circuit board is fixedly provided with 2 cylindrical electrode connectors made of conductor materials, and the drive circuit board is fixedly connected with the upper ends of the 2 needle electrodes of the electrode assembly in an inserting mode and electrically connected through the 2 electrode connectors.

The further scheme is as follows: the 3 LED light sources are uniformly arranged on the driving circuit board at intervals in a mode that the included angle between every two adjacent 2 LED light sources is 120 degrees.

The further scheme is as follows: the 3 LED light sources are obliquely arranged in a mode that an included angle formed between the 3 LED light sources and the upper end face of the driving circuit board is 80-87 degrees.

The further scheme is as follows: and the included angles between the 3 LED light sources and the upper end surface of the driving circuit board are 85 degrees respectively.

The utility model has the positive effects that: (1) according to the glass-encapsulated built-in driving LEDG9 bulb, the driving circuit board is arranged in the sealed transparent glass bulb shell, and the 3 LED light sources are obliquely arranged at intervals at the upper end of the driving circuit board, so that the bulb can realize 360-degree-range uniform illumination when in use, and the technical problem that the luminous work surface of the same type of bulb in the prior art has obvious bright and dark areas and cannot realize 360-degree-range uniform illumination when in use can be effectively solved. (2) The utility model relates to a glass-encapsulated built-in drive LEDG9 bulb, wherein an electrode assembly is fixedly arranged in a lamp holder formed by fusing the lower end of a transparent glass bulb shell through the lower end of the transparent glass bulb shell, an electrolytic capacitor with larger volume for filtering is fixedly arranged above a drive circuit board, 2 electrode plug connectors are specially arranged on the drive circuit board, and the drive circuit board only needs to be fixedly plugged with the upper ends of 2 needle electrodes of the electrode assembly through the 2 electrode plug connectors when being installed, so that the technical problem that the production yield is low because a circuit assembly with the electrolytic capacitor in the limited structure is easily damaged during flame encapsulation in the production process in the prior art can be effectively solved, and the yield during production can be greatly improved. (3) The glass-packaged built-in drive LEDG9 bulb provided by the utility model has the advantages that the diameter of the main body of the transparent glass bulb shell can break through the limitation of maximum 16mm in the prior art by the structural improvements such as the electrode structure and arrangement mode, the arrangement of the electrode plug connector on the drive circuit board, the installation mode of the electrode plug connector on the drive circuit board, and the like, can be enlarged to 20mm, is favorable for heat dissipation when the bulb works, and prolongs the service life of the bulb.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is an electrical schematic of the present invention.

The reference numbers in the above figures are as follows:

the lamp comprises a transparent glass bulb shell 1, a main body 1-1, a lamp holder 1-2 and a vacuumizing and gas injection end socket 1-3; an electrode assembly 2, a molybdenum foil 2-1, a G9 lamp pin 2-2, a needle electrode 2-3, a driving circuit board 3 and an electrode plug connector 3-1; an electrolytic capacitor C1; the LED lamp comprises an LED light source 4, a substrate 4-1 and an LED lamp sheet 4-2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

(example 1)

Referring to fig. 1 to 3, the glass-encapsulated internally-driven LED g9 bulb of the present embodiment is mainly composed of a transparent glass bulb 1, an electrode assembly 2, a driving circuit board 3, an LED light source 4, and a heat dissipating gas (not labeled) filled in the transparent glass bulb 1.

The transparent glass bulb shell 1 is integrally formed by a main body 1-1, a lamp holder 1-2 and a vacuumizing and gas injection end socket 1-3; the main body 1-1 is a transparent glass tube with a circular cross section, and in the embodiment, the diameter of the main body 1-1 is preferably 20mm, so that the bulb has a larger heat dissipation space when in use, and the service life of the bulb is prolonged. The lamp holder 1-2 is a square plate body formed by hot melting and press sealing the lower end of the main body 1-1, the lamp holder 1-2 seals the lower end of the main body 1-1, and the vacuumizing gas injection seal head 1-3 is a seal head formed by hot melting the upper end of the main body 1-1 after vacuumizing and injecting heat dissipation gas into the transparent glass bulb 1. The transparent glass bulb shell 1 is filled with heat dissipation gas after vacuum pumping, wherein the heat dissipation gas is mixed gas consisting of 90-95% of helium and 10-5% of nitrogen, the heat dissipation gas can be only filled with helium, and the mixed gas is preferably adopted.

The electrode assembly 2 comprises 2 molybdenum foils 2-1, 2G 9 lamp pins 2-2 and 2 needle electrodes 2-3. The upper ends of 2G 9 lamp pins 2-2 are fixedly connected and electrically connected with the lower end of 1 molybdenum foil 2-1, the lower ends of 2 needle electrodes 2-3 are fixedly connected and electrically connected with the upper end of 1 molybdenum foil 2-1, the parts of 2 molybdenum foil 2-1, 2G 9 lamp pins 2-2 and 2G 9 lamp pins 2-3 which are connected with 2 molybdenum foils 2-1 are fixedly arranged in a lamp holder 1-2 of a transparent glass bulb 1, the lower parts of 2G 9 lamp pins 2-2 extend out from the lower end of the lamp holder 1-2, the extending parts of 2G 9 lamp pins 2-2 and the lamp holder 1-2 form a G9 lamp holder, and the upper ends of 2 needle electrodes 2-3 extend out of a main body 1-1 of the transparent glass bulb 1.

The driving circuit board 3 is a circular plate body, and the diameter of the driving circuit board 3 is smaller than the inner diameter of the main body 1-1 of the transparent glass bulb shell 1; the driving circuit board 3 is fixed with 2 cylindrical electrode connectors 3-1 made of conductor material as the power input end of the driving circuit board, and the material of the electrode connectors 3-1 is preferably copper in this embodiment. The driving circuit board 3 is provided with a driving circuit, the driving circuit includes a rectifier bridge U1, a driving chip U2, a resistor R1, a resistor R2, a resistor R3 and an electrolytic capacitor C1, the driving circuit is a driving circuit with rectification and filtering functions, an electrical schematic diagram of the driving circuit is shown in fig. 3, and the driving circuit is a mature prior art and is not described in detail. Different from the prior art, the electrolytic capacitor C1 is arranged in the middle of the upper end of the driving circuit board 3, and the driving circuit board 3 is fixedly inserted and electrically connected with the upper ends of the 2 needle electrodes 2-3 of the electrode assembly 2 through the 2 electrode connectors 3-1 thereof, so that the driving circuit board 3 is fixedly arranged in the main body 1-1 of the transparent glass bulb shell 1.

In this embodiment, when the driving circuit board 3 is installed, the electrode assembly 2 is fixedly arranged in the lamp cap 1-2 when the electrode assembly is sealed by fusing through the lower end of the main body 1-1 of the transparent glass bulb 1, and the electrolytic capacitor C1 for filtering is fixedly arranged on the driving circuit board 3, when the driving circuit board 3 is installed, only the 2 electrode plug connectors 3-1 specially arranged by the driving circuit board are required to be fixedly plugged with the upper ends of the 2 needle electrodes 2-3 of the electrode assembly 2, so that the technical problem that in the prior art, the production yield is low because the electrolytic capacitor limited by the structure is easily damaged during flame encapsulation in the production process can be effectively solved, and the production yield and the production efficiency can be greatly improved. Meanwhile, the diameter of the main body 11 of the transparent glass bulb shell 1 can break through the limitation of maximum 16mm in the prior art and is enlarged to 20mm, so that heat dissipation of the bulb during working is facilitated, and the service life of the bulb is prolonged.

The LED light source 4 consists of a substrate 4-1 and more than 1 LED lamp piece 4-2 fixedly arranged on the substrate 4-1. The LED light source 4 is a commercially available component, and the structure thereof is not described in detail. Different from the required technology, in the embodiment, 3 LED light sources 4 are connected in parallel, 3 LED light sources 4 are arranged at an interval at the upper end of the driving circuit board 3 and electrically connected to the power output end of the driving circuit board 3, and preferably, 3 LED light sources 4 are arranged at an interval uniformly in the circumferential direction of the driving circuit board 3 in a manner that the included angle between two adjacent 2 LED light sources 4 is 120 °. Further preferably, the 3 LED light sources 4 are respectively arranged in an inclined manner such that an included angle between the LED light sources and the upper end surface of the driving circuit board 3 is 80 to 87 degrees, and the included angle is optimally 85 degrees, so as to achieve optimal uniform illumination within the current 360 degrees during operation.

3 LED light sources 4 are obliquely arranged at intervals in the embodiment, so that the bulb of the embodiment can realize 360-degree range uniform illumination when in use, and the technical problem that the light-emitting working surface of the same type of bulb commonly existing in the prior art has obvious bright and dark areas and cannot realize 360-degree range uniform illumination when in use can be effectively solved.

The above embodiments are illustrative of specific embodiments of the present invention, and are not restrictive of the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention to obtain corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of the present invention.

Claims

1. A glass-encapsulated built-in driven LEDG9 bulb comprising a sealed transparent glass envelope and a heat-dissipating gas filled within said transparent glass envelope, characterized in that: the LED bulb also comprises an electrode assembly fixedly arranged on the transparent glass bulb shell, a driving circuit board fixedly arranged in the transparent glass bulb shell, and 3 LED light sources obliquely arranged on the driving circuit board at intervals; the driving circuit board is provided with a driving circuit comprising an electrolytic capacitor for filtering, the electrolytic capacitor is fixedly arranged above the driving circuit board and positioned among the 3 LED light sources, and the 3 LED light sources are electrically connected with the driving circuit; the driving circuit board is fixedly inserted and connected with the electrode assembly in the transparent glass bulb shell.

2. The glass-encapsulated, internally-driven LEDG9 bulb of claim 1, wherein: the transparent glass bulb shell comprises a main body of a transparent glass tube with a circular cross section, a lamp holder formed by hot melting and press sealing the lower end of the main body, and a vacuumizing gas injection end socket formed by hot melting the upper end of the main body after vacuumizing and refilling the inside of the main body with the heat dissipation gas.

3. The glass-encapsulated, internally-driven LEDG9 bulb of claim 2, wherein: the diameter of the main body of the transparent glass bulb shell is 20 mm.

4. The glass-encapsulated, internally-driven LEDG9 bulb of claim 2, wherein: the electrode assembly comprises 2 molybdenum foils, 2G 9 lamp pins and 2 needle electrodes; the upper ends of 2G 9 lamp pins are fixedly connected and electrically connected with the lower ends of 1 molybdenum foil respectively, the lower ends of 2 needle electrodes are fixedly connected and electrically connected with the upper ends of 1 molybdenum foil respectively, the parts of the 2 molybdenum foils, 2G 9 lamp pins and 2 needle electrodes, which are connected with the 2 molybdenum foils respectively, are fixedly arranged in the lamp holder of the transparent glass bulb shell, the lower parts of the 2G 9 lamp pins extend out from the lower ends of the lamp holder and form a G9 lamp holder together with the lamp holder, and the upper ends of the 2 needle electrodes extend out into the main body of the transparent glass bulb shell.

5. The glass-encapsulated, internally-driven LEDG9 bulb of claim 4, wherein: the driving circuit board is a circular plate body, and the diameter of the driving circuit board is smaller than the inner diameter of the main body of the transparent glass bulb shell; the drive circuit board is fixedly provided with 2 cylindrical electrode connectors made of conductor materials, and the drive circuit board is fixedly connected with the upper ends of the 2 needle electrodes of the electrode assembly in an inserting mode and electrically connected through the 2 electrode connectors.

6. The glass-encapsulated built-in driven LEDG9 bulb as claimed in any one of claims 1-5, wherein: the 3 LED light sources are uniformly arranged on the driving circuit board at intervals in a mode that the included angle between every two adjacent 2 LED light sources is 120 degrees.

7. The glass-encapsulated, internally-driven LEDG9 bulb of claim 6, wherein: the 3 LED light sources are obliquely arranged in a mode that an included angle formed between the 3 LED light sources and the upper end face of the driving circuit board is 80-87 degrees.

8. The glass-encapsulated, internally-driven LEDG9 bulb of claim 6, wherein: and the included angles between the 3 LED light sources and the upper end surface of the driving circuit board are 85 degrees respectively.