CN214037900U

CN214037900U - Butt-joint-free LED lamp filament structure and LED bulb

Info

Publication number: CN214037900U
Application number: CN202022199102.4U
Authority: CN
Inventors: 颜磊; 胡东林; 唐双文; 陈飞
Original assignee: SHENZHEN RUNLITE TECHNOLOGY CO LTD
Current assignee: SHENZHEN RUNLITE TECHNOLOGY CO LTD
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-08-24
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a butt-welding-free LED filament structure and an LED bulb, wherein the LED filament structure comprises a substrate, a first PIN foot and a second PIN foot; the first PIN comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the substrate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the first PIN PIN and the substrate are positioned on the same straight line; the extension part is parallel to the second PIN foot, and the other end of the extension part is aligned with the other end of the second PIN foot; the utility model discloses with first PIN foot and second PIN foot in same direction setting, can save the operation of butt-joint procedure when encapsulating, effectively avoided the filament light source at the secondary injury risk of butt-joint process, improve the yield, simplified the encapsulation step.

Description

Butt-joint-free LED lamp filament structure and LED bulb

Technical Field

The utility model relates to a LED encapsulation technology field, in particular to exempt from butt-joint's LED filament structure and LED bulb.

Background

In the existing bulb, a core column is used for wrapping a molybdenum wire in the finished product bulb sealing stage, a filament PIN and the molybdenum wire are combined by using a butt-welding technology, and then a power supply is connected; when the butt-welding process is operated, the secondary damage of the filament light source can occur due to the technical parameter setting and the operation stability, and the light source can be seriously disabled.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide a exempt from butt-joint's LED filament structure and LED bulb can effectively avoid making the problem that the filament light source damaged because of the butt-joint operation.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a butt-welding-free LED filament structure comprises a substrate, a first PIN foot and a second PIN foot; the first PIN comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the substrate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the first PIN PIN and the substrate are positioned on the same straight line; the extension portion is parallel with the first PIN foot, and the other end of extension portion and the other end alignment setting of first PIN foot.

In the butt-welding-free LED filament structure, the other end of the extension part is a first connecting part; the first connecting portion comprises a first tip portion and a first end portion; the second end part is four sections and respectively consists of round tables with different tapers and cylinders with different diameters, and the round tables and the cylinders are connected at intervals.

In the butt-welding-free LED filament structure, the other end of the second PIN is a second connecting part; the second connecting part comprises a second tip part and a second end part; the second end part is four sections and respectively consists of round tables with different tapers and cylinders with different diameters, and the round tables and the cylinders are connected at intervals.

In the butt-welding-free LED filament structure, the taper angle of the first tip part is 30-35 degrees.

In the butt-welding-free LED filament structure, the taper angle of the second tip part is 30-35 degrees.

In the butt-welding-free LED filament structure, at least two fixing claws used for fixing the bent part on the substrate are arranged at one end of the bent part, and the fixing claws are bent upwards from the bottom surface of the substrate and clamped on the top surface of the substrate.

Exempt from LED filament structure of butt-joint welding in, the one end of second PIN foot is provided with two at least stationary dog that are used for fixing second PIN foot on the base plate, the stationary dog is followed the bottom surface of base plate and is upwards crooked card and is pressed on the top surface of base plate.

In the butt-welding-free LED filament structure, the second PIN foot is provided with an identification hole for identifying the polarity of the filament.

In the butt-welding-free LED filament structure, the substrate comprises a ceramic substrate.

An LED bulb comprises a lamp holder and a bulb shell, wherein the bulb shell is hermetically connected with one end of the lamp holder; the first connecting part is inserted into the first jack, and the second connecting part is inserted into the second jack.

Compared with the prior art, the utility model provides a butt-welding-free LED filament structure and LED bulb, LED filament structure includes base plate, first PIN foot and second PIN foot; the first PIN comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the substrate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the first PIN PIN and the substrate are positioned on the same straight line; the extension part is parallel to the first PIN foot, and the other end of the extension part is aligned with the other end of the first PIN foot; the utility model discloses with first PIN foot and second PIN foot in same direction setting, can save the operation of butt-joint procedure when encapsulating, effectively avoided the filament light source at the secondary injury risk of butt-joint process, improve the yield, simplified the encapsulation step.

Drawings

Fig. 1 is a schematic view of a butt-welding-free LED filament structure provided by the present invention;

fig. 2 is a schematic diagram of a first connection portion and a second connection portion in a butt-welding-free LED filament structure provided by the present invention;

fig. 3 is a schematic view of a bending portion in a butt-welding-free LED filament structure provided by the present invention;

fig. 4 is a schematic structural diagram of the butt-welding-free LED filament structure provided by the present invention after encapsulating the fluorescent colloid;

fig. 5 is a schematic structural diagram of an LED bulb provided by the present invention;

fig. 6 is a schematic structural view of the lamp holder in the LED bulb provided by the present invention.

Detailed Description

The utility model provides a pair of exempt from LED filament structure and LED bulb of butt-joint can effectively avoid making the problem that the filament light source damaged because of the butt-joint operation.

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the utility model provides a butt-welding-free LED filament structure, which includes a substrate 1, a first PIN 2 and a second PIN 3; in this embodiment, first PIN foot 2 and second PIN foot 3 adopt copper, aluminium or indisputable, and its heat conduction, electric conductive property are good, are favorable to the heat dissipation of filament.

The first PIN leg 2 comprises a bending part 21 and an extending part 22 which are integrally formed, one end of the bending part 21 is connected with one end of the substrate 1, and the other end of the bending part 21 is connected with one end of the extending part; one end of the second PIN PIN 3 is connected with one end of the substrate 1, and the first PIN PIN 2 and the substrate 1 are positioned on the same straight line; the extension 22 is parallel to the second PIN leg 3, and the other end of the extension 22 is aligned with the other end of the second PIN leg 3.

In the utility model, the first PIN 2 is provided with the bending part 21 and the extending part 22, and the first PIN 2 and the second PIN 3 are arranged in parallel and aligned, which is equivalent to that the first PIN 2 and the second PIN 3 are arranged in parallel and aligned after being bent for 180 degrees; in the embodiment, the first PIN PIN 2 is a positive PIN PIN, the second PIN PIN 3 is a negative PIN PIN, the positive PIN PIN and the negative PIN PIN are arranged in the same direction, and the filament PIN PIN can be directly inserted into a lamp holder of the bulb during packaging, so that the PIN PIN and a molybdenum wire are prevented from being combined and then connected with a power supply, packaging devices are reduced, the space in the bulb is saved, the heat dissipation efficiency in the bulb shell is enhanced, and the service life of the bulb is prolonged; meanwhile, the operation of butt-welding procedures can be omitted, the risk of secondary damage of the filament light source in the butt-welding procedure is effectively avoided, the yield is improved, and the packaging steps are simplified.

Further, referring to fig. 2, the other end of the extension portion 22 is a first connection portion 221; the first connection portion 221 includes a first tip portion 2211 and a first end portion 2212; the first end 2212 is divided into four sections, which are respectively formed by circular truncated cones with different tapers and cylinders with different diameters, wherein the circular truncated cones and the cylinders are connected at intervals, specifically, the four sections are respectively formed by sequentially arranging a circular truncated cone with a first taper, a cylinder with a first diameter, a circular truncated cone with a second taper and a cylinder with a second diameter, wherein the second cylinder is further connected with the first tip 2211, the diameter of the second cylinder is smaller than that of the first cylinder, and the PIN PIN is easily inserted into the lamp holder by arranging the part, inserted into the lamp holder, of the PIN into a cone shape; the end of the first connecting portion 221 is provided with the round tables with different tapers, a cylinder is formed at the connecting position of the round tables, and the PIN PINs can be connected with the lamp holder in a deep manner step by step in the inserting connection, so that the connection is firmer.

Further, the other end of the second PIN 3 is a second connection portion 31; the second connection portion 31 includes a second tip portion 311 and a second end portion 312; the second end part 312 is divided into four sections, which are respectively formed by circular truncated cones with different tapers and cylinders with different diameters, and the circular truncated cones and the cylinders are connected at intervals, specifically, the four sections are respectively formed by sequentially arranging a circular truncated cone with a first taper, a cylinder with a first diameter, a circular truncated cone with a second taper and a cylinder with a second diameter, wherein the second cylinder is further connected with the second tip part 311; the first PIN PIN 2 and the second PIN PIN 3 are arranged in parallel and aligned, so that the first PIN PIN 2 and the second PIN PIN 3 can be synchronously inserted into the lamp holder; similarly, the second PIN PIN 3 is set to be of the same structure as the first PIN PIN 2, so that the PIN PINs can be inserted into the lamp holder more easily and synchronously, and the packaging operation is simpler and more convenient.

Further, in this embodiment, the taper angle of the first tip portion 2211 is 30 to 35 °, the taper angle of the second tip portion 311 is 30 to 35 °, and both the first tip portion 2211 and the second tip portion 311 are cone-shaped, so that the PIN can be inserted into the lamp holder more conveniently when the taper angle is smaller, and the lamp can be packaged more conveniently.

Further, referring to fig. 3, at least two fixing claws 4 for fixing the bent portion 21 on the substrate 1 are disposed at one end of the bent portion 21, the fixing claws 4 are bent upward from the bottom surface of the substrate 1 and clamped on the top surface of the substrate 1, and the terminal portion 211 is disposed on the first PIN 2, so that the substrate 1 and the first PIN are clamped tightly by the at least two fixing claws 4, and the connection is firm, and the filament is not easy to fall off after being assembled. During production, the substrate 1 and the first PIN feet 2 are fixedly connected through mechanical equipment, and the working efficiency is high.

Further, please continue to refer to fig. 2, at least two fixing claws 4 for fixing the second PIN 3 on the substrate 1 are disposed at one end of the second PIN 3, the fixing claws 4 are bent upward from the bottom surface of the substrate 1 and clamped on the top surface of the substrate 1, and also in order to enable the second PIN 3 to be stably connected with the substrate 1, a terminal portion 32 is disposed at one end of the second PIN 3, and the substrate 1 and the second PIN are clamped tightly by the at least two fixing claws 4 and are not easy to fall off after the filament is assembled. During production, the substrate 1 and the second PIN PIN 3 are fixedly connected through mechanical equipment, and the working efficiency is high.

Furthermore, in the embodiment, the number of the fixing claws 4 is four, the fixing claws are distributed in a rectangular shape, the fixing range of the fixing claws 4 is large, the number of fixing points is large, and the paired arrangement can ensure that the substrate 1 is tightly connected with the bending part 21 in the first PIN leg 2 and the second PIN leg 3.

Further, please refer to fig. 4, in order to distinguish the polarity of the LED filament structure, the second PIN 3 is further provided with an identification hole 32 for identifying the negative electrode of the LED filament to prevent the confusion of the positive and negative electrodes.

Furthermore, the middle part of the substrate 1 is provided with a plurality of LED chips connected in series, the LED chips and the middle part of the substrate 1 are provided with the fluorescent colloid 5, the fluorescent colloid 5 can cover the middle part of the substrate 1 and the LED chips by 360 degrees, and the light emitting efficiency is high. In other embodiments, the fluorescent colloid 5 may coat one or both sides of the substrate 1, and also has a better light emitting effect, and different coating modes of the fluorescent colloid 5 may be selected according to the requirements of different end light source products.

Referring to fig. 5 and fig. 6, the present invention also provides a corresponding LED bulb, which includes a lamp cap 10, a bulb shell 20, and the above-mentioned butt-welding-free LED filament structure; the bulb 20 is hermetically connected with one end of the lamp cap 10, and one end of the lamp cap 10 is provided with a first jack 11 matched with the first connecting part 221 and a second jack 12 matched with the second connecting part 31; the first connecting part 221 is inserted into the first inserting hole 11, the second connecting part 31 is inserted into the second inserting hole 12, the butt-welding-free LED filament structure is directly inserted into the lamp holder 10 through the first PIN PIN 2 and the second PIN PIN 3 which are arranged in the same direction, and the butt-welding-free LED filament structure is arranged in the lamp housing 20, so that the butt-welding procedure can be saved when the LED bulb is packaged, and further the damage of the filament structure is avoided; since the structure of the butt-welding-free LED filament has been described in detail above, it will not be described in detail here.

To sum up, the utility model provides a butt-welding-free LED filament structure and LED bulb, the LED filament structure includes a substrate, a first PIN foot and a second PIN foot; the first PIN comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the substrate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the first PIN PIN and the substrate are positioned on the same straight line; the extension part is parallel to the first PIN foot, and the other end of the extension part is aligned with the other end of the first PIN foot; the utility model discloses with first PIN foot and second PIN foot in same direction setting, can save the operation of butt-joint procedure when encapsulating, effectively avoided the filament light source at the secondary injury risk of butt-joint process, improve the yield, simplified the encapsulation step.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. A butt-welding-free LED filament structure is characterized by comprising a substrate, a first PIN foot and a second PIN foot; the first PIN comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the substrate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the second PIN PIN and the substrate are positioned on the same straight line; the extension portion is parallel with the second PIN foot, and the other end of extension portion and the other end alignment setting of second PIN foot.

2. The solderless LED filament structure of claim 1, wherein the other end of the extension is a first connection portion; the first connecting portion comprises a first tip portion and a first end portion; the first end part is divided into four sections which are respectively formed by circular truncated cones with different tapers and cylinders with different diameters, and the circular truncated cones and the cylinders are connected at intervals.

3. The butt-welding-free LED filament structure according to claim 1, wherein the other end of the second PIN is a second connecting part; the second connecting part comprises a second tip part and a second end part; the second end part is four sections and respectively consists of round tables with different tapers and cylinders with different diameters, and the round tables and the cylinders are connected at intervals.

4. The solderless LED filament structure of claim 2, wherein the taper angle of the first tip portion is 30 ° to 35 °.

5. A solderless LED filament structure according to claim 3 wherein the taper angle of the second tip portion is from 30 ° to 35 °.

6. The solderless LED filament structure of claim 1, wherein one end of the bent part is provided with at least two fixing claws for fixing the bent part on the substrate, and the fixing claws are bent upwards from the bottom surface of the substrate and clamped on the top surface of the substrate.

7. The solderless LED filament structure of claim 1, wherein one end of the second PIN is provided with at least two fixing claws for fixing the second PIN on the substrate, and the fixing claws are bent upwards from the bottom surface of the substrate and clamped on the top surface of the substrate.

8. A butt-welding-free LED filament structure as claimed in claim 1, wherein the second PIN is provided with an identification hole for identifying the polarity of the filament.

9. The solderless LED filament structure of claim 1, wherein the substrate comprises a ceramic substrate.

10. An LED bulb comprises a lamp holder and a bulb shell, wherein the bulb shell is connected with one end of the lamp holder in a sealing mode, and the LED bulb is characterized by further comprising the butt-welding-free LED filament structure in claim 1, the LED filament structure comprises a base plate, a first PIN foot and a second PIN foot, the first PIN foot comprises a bending part and an extending part which are integrally formed, one end of the bending part is connected with one end of the base plate, and the other end of the bending part is connected with one end of the extending part; one end of the second PIN PIN is connected with one end of the substrate, and the second PIN PIN and the substrate are positioned on the same straight line; the other end of the extension part is a first connecting part, and the other end of the second PIN is a second connecting part; one end of the lamp cap is provided with a first jack matched with the first connecting part and a second jack matched with the second connecting part; the first connecting part is inserted into the first jack, and the second connecting part is inserted into the second jack.