TW202104792A - LED lamp core structure without hot bead and manufacturing method thereof with which the LED lamp core can be firmly fixed and the defect rate is low - Google Patents

Abstract

The present invention provides an LED lamp core structure without hot beads and a manufacturing method thereof. The structure includes a glass shell, a first conductive wire, a second conductive wire, an LED filament and a hollow glass tube, with which the components and manufacturing process of "hot beads" as in the prior art are not required, and an upside-down packaging machine is not used for production during the manufacturing process, which may cause the lamp core position to be skewed and the lamp core position to be not in place. Therefore, the LED lamp core structure without hot beads in accordance with the present invention not only is advantageous in simple structure, and easy production and manufacture, but also can firmly fix the LED lamp core and make the defect rate low, so as to easily control the product quality thereby greatly saving man-hours and saving production and manufacturing costs.

Description

Non-hot bead type LED lamp core structure and manufacturing method thereof

The invention relates to a lighting device, in particular to a non-hot bead type LED lamp core structure and a manufacturing method thereof.

The conventional LED lamp core structure 100' with hot beads is shown in Figure 1; and Figure 2 is a schematic diagram showing the production process of the conventional LED lamp core structure 100' with hot beads; for detailed description, please refer to China According to the Republic of China Announcement No. I613392 Invention Patent, the following only briefly describes its structure and manufacturing process.

The conventional LED lamp core structure 100' with hot bead is electrically connected to an LED filament 4'by dual guide wires 1'and 2', and the dual guide wires 1'and 2'are fixedly connected to each other by a hot bead 3' ; And its production process is to sinter the glass rod at high temperature with flame, while rolling the double guide wire 1', 2', so that the molten glass slurry is stuck between the double guide wire 1', 2'to form a hot bead 3', The double guide wire 1', 2'is fixed with hot beads 3'.

However, when the molten glass slurry is stuck between the double guide wires 1'and 2', the hot bead 3'is too close to the welding point A1 of the guide wire 1', which will cause the welding point A1 to be oxidized at high temperature. The LED filament 4'cannot be welded firmly during the welding of the welding end point, which causes the LED filament 4'to fall off from the double guide wires 1'and 2'. Moreover, the production process is produced by an upside-down packaging machine. After 110' is placed in the glass shell 5'in free fall, and then the glass shell 5'is sintered and sealed, the lamp core will be 110'. The phenomenon of skewed placement and improper position of the lamp core 110' (as shown in Figure 2) leads to problems such as a high defect rate and difficult control of product quality.

In view of the aforementioned problems, the inventors have further researched and developed with great care. Therefore, the main purpose of the present invention is to provide a non-hot bead type LED lamp core structure and a manufacturing method thereof, which does not require the manufacture of hot bead components and manufacturing as in the prior art. The process does not make it necessary to use an upside-down packaging machine for production during the manufacturing process, causing the lamp core position to be skewed and the lamp core position not in place, so that the non-hot bead type LED lamp core structure of the present invention is not only simple in structure, and convenient In production and manufacturing, the LED lamp core can be firmly fixed, and the defect rate is low and the product quality is easy to control, which greatly saves man-hours and saves production and manufacturing costs.

In order to achieve the above objective, the present invention provides a non-hot bead type LED lamp core structure and a manufacturing method thereof, including a glass shell with a clamping part at one end, and the glass shell defines an internal accommodating space; The first guide wire is passed through and fixed at the clamping position, a part of the first guide wire is located in the accommodating space of the glass shell, and another part of the first guide wire is located outside the glass shell; The second guide wire and the first guide wire are spaced apart from each other, the second guide wire passes through and is fixed at the clamp, and a part of the second guide wire is located in the accommodating space of the glass shell, the The other part of the second guide wire is located outside the glass shell; an LED filament is arranged in the glass shell, and the two ends of the LED filament are respectively connected to the end of the first guide wire located in the accommodating space and the One end of the second guide wire located in the accommodating space is electrically connected; and a hollow glass tube passing through the clamping part, and one end of the hollow glass tube is located in the accommodating space of the glass shell, and A through hole is formed, the other end of the hollow glass tube is located outside the glass shell, and the glass shell is evacuated and inflated after being sealed.

In some embodiments, the first guide wire is welded to the LED filament through a first guide wire welding rod, and is electrically connected; the second guide wire is welded to the LED filament through a second guide wire welding rod Fixed and electrically connected.

In order to achieve the above objective, the present invention further provides a non-hot bead type LED lamp core structure and a manufacturing method thereof, including: Step S1: electrically connecting a first guide wire and a second guide wire to an LED filament, respectively To form an LED lamp core; Step S2: Feed the LED lamp core and a hollow glass tube from a perforation of a glass shell into the glass shell, and make a part of the first guide wire and the first guide wire A part of the second guide wire and a part of the hollow glass tube are exposed outside the glass shell to complete the positioning and assembly; step S3: heating and sintering the glass shell with the perforation to form a pinch seal, Then the LED lamp core, the hollow glass tube and the glass shell are formed into a semi-finished product after heating and sintering; and step S4: the hollow glass tube has a through hole at one end inside the glass shell, which is drawn from the hollow glass tube The end outside the glass shell is vacuumed and inflated, and then the hollow glass tube is closed at the end outside the glass shell to form a vacuum-inflated finished product. In some embodiments, in the step S1, the first guide wire is welded and fixed to the LED filament through a first guide wire welding rod, and is electrically connected, and the second guide wire passes through a second guide wire. The wire welding rod is welded and fixed with the LED filament, and is electrically connected.

In some embodiments, in the step S1, the first guide wire is welded and fixed to the LED filament through a first guide wire welding rod, and is electrically connected, and the second guide wire passes through a second guide wire. The wire welding rod is welded and fixed with the LED filament, and is electrically connected.

In some embodiments, the welding and fixing of the first guide wire welding rod and the LED filament and the welding and fixing of the second guide wire welding rod and the LED filament are realized by an automatic spot welding machine.

In some embodiments, in the step 1, the first guide wire, the second guide wire and the LED filament are fixed through a first jig for welding and fixing.

In some embodiments, in the step 2, the LED lamp core, the hollow glass tube and the glass shell are fixed through a second jig for positioning and assembly. The first jig is different from the first jig. Two fixtures.

In some embodiments, in this step 4, an exhaust sealing machine is used to realize the vacuuming and charging operation.

In some embodiments, after the step S4, the system further includes a step S5, which is to combine an electronic part, a lamp cap, and an adhesive to form an LED lamp by using a heading machine to combine the vacuum-filled product with an electronic component, a lamp cap, and an adhesive. Cannon structure.

[this invention]

100‧‧‧Bead-free LED lamp core structure

1‧‧‧Glass shell

11‧‧‧Clamping place

12‧‧‧Perforation

13‧‧‧Accommodation space

2‧‧‧First guide wire

21‧‧‧First guide wire welding rod

3‧‧‧Second guide wire

31‧‧‧Second guide wire welding rod

4‧‧‧LED filament

5‧‧‧Insulating glass tube

51‧‧‧Through hole

6‧‧‧Electronic parts

7‧‧‧Lamp holder

8‧‧‧Adhesive

110‧‧‧LED lamp core

120‧‧‧Semi-finished products after heating and sintering

130‧‧‧The finished product after vacuuming and inflating

200‧‧‧First Fixture

210‧‧‧Guide wire fixing mechanism

300‧‧‧Second fixture

310‧‧‧Ontology

320‧‧‧Clamping hole

330‧‧‧Clamping arm

340‧‧‧Clamp arm

350‧‧‧Cut

400‧‧‧LED bulb structure

D01‧‧‧Automatic Spot Welding Machine

D02‧‧‧Automatic packaging machine

D03‧‧‧Exhaust Sealing Machine

D04‧‧‧Heading machine

S1~S5‧‧‧Production steps of the invention

[Learning]

100’‧‧‧LED lamp core structure with hot beads

110’‧‧‧Dengrui

1’‧‧‧Guide wire

2’‧‧‧Guide wire

3’‧‧‧Hot beads

4’‧‧‧LED filament

5’‧‧‧glass shell

A1‧‧‧Connecting solder joints

Figure 1 is a schematic diagram showing a conventional LED lamp core structure with hot beads.

Figure 2 is a schematic diagram showing the production process of the conventional LED lamp core structure with hot beads.

Figure 3 is a perspective schematic diagram showing the structure of the non-hot bead LED lamp core of the present invention.

Figure 4 is an exploded schematic diagram showing the structure of the non-hot bead LED lamp core of the present invention.

Figures 5 to 8 are schematic diagrams showing the production process of the fixture used in the lamp core manufacturing spot welding machine with the non-hot bead type LED lamp core structure of the present invention.

Figures 9 to 12 are schematic diagrams showing the production process of the fixture used in the feeding mechanism of the LED assembling machine with the non-hot bead type LED lamp core structure of the present invention.

Figure 13 is a schematic plan view showing the production process of the non-hot bead type LED lamp core structure of the present invention.

Figure 14 is a schematic plan view showing the production process of a complete LED bulb structure without a hot bead-type LED lamp core structure according to the present invention.

Figure 15 is a schematic diagram showing the production steps of the non-hot bead type LED lamp core structure of the present invention.

Regarding the technical means by which the present invention achieves the above-mentioned purpose, the following implementation forms are used in conjunction with the diagrams to illustrate in detail below, so that Jun Shang has a thorough understanding and approval.

Please refer to Figures 3 and 4, the non-hot bead type LED lamp core structure 100 of the present invention includes a glass shell 1, a first guide wire 2, a second guide wire 3, an LED filament 4, and a Hollow glass tube 5.

One end of the glass shell 1 (as shown at the bottom end of the glass shell 1 as shown in Figure 4) has a through hole 12. During the manufacturing process, it will be heated and melted through an automatic packaging machine D02 (as shown in Figure 14). The sealing part 11 is formed by firing, and the manufacturing method will be described in detail later; and the glass shell 1 defines an accommodating space 13 inside.

The first guide wire 2 is threaded through and fixed at the pinch 11, and a part of the first guide wire 2 is located inside the glass shell 1 (that is, located in the accommodating space 13), and another part of the first guide wire 2 is located in Outside the glass shell 1.

The second guide wire 3 and the first guide wire 2 are spaced apart from each other, the second guide wire 3 passes through and is fixed at the clamping part 11, and a part of the second guide wire 3 is located in the glass shell 1 (that is, located in the housing In the space 13), another part of the second guide wire 3 is located outside the glass shell 1.

The LED filament 4 is arranged in the glass shell 1 (that is, located in the accommodating space 13), and the two ends of the LED filament 4 are respectively located at the end of the first guide wire 2 in the accommodating space 13 and the second guide wire at 3 positions. One end in the accommodating space 13 is electrically connected; that is, as shown in Figures 3 and 4, the LED filament 4 can be set upright, which is illustrated as an example, but is not limited to this .

Please refer to Figures 3 and 4 again, the first end of the vertically arranged first guide wire 2 connected to the LED filament 4 is bent horizontally to form a first guide wire welding rod 21 (to make the whole inverted L-shaped ), and through the first guide wire welding rod 21 and the bottom end of the LED filament 4 through an automatic spot welding machine D01 (shown in Figure 14) welding fixed, and electrically connected; and the vertical second guide wire 3 The end connected to the LED filament 4 is bent horizontally to form a second guide wire welding rod 31 (the whole is in an inverted L shape), and the second guide wire welding rod 31 and the top end of the LED filament 4 penetrate the The automatic spot welding machine D01 (as shown in Figure 14) is welded and fixed and electrically connected.

The hollow glass tube 5 passes through the clamping part 11, and one end of the hollow glass tube 5 is located in the glass shell 1 (that is, in the accommodating space 13), and a through hole 51 is formed, and the other end of the hollow glass tube 5 is in position Outside the glass case 1, the inside of the glass case 1 is evacuated and inflated through an exhaust sealing machine D03 (as shown in Figure 14) and then sealed.

Hereinafter, the manufacturing method of the bead-free LED lamp core structure 100 of the present invention will be described in detail.

Please refer to Fig. 5 to Fig. 14, the present invention has no hot bead type LED lamp core knot The manufacturing method of the structure 100 includes: step S1: electrically connecting the first guide wire 2 and the second guide wire 3 to the two ends of the LED filament 4 to form an LED lamp core 110; step S2: connecting the LED lamp core 110 and the hollow glass tube 5 are fed into the glass shell 1 from the perforation 12 of the glass shell 1 (that is, located in the accommodating space 13), and a part of the first guide wire 2, a part of the second guide wire 3, and the hollow glass tube A part of 5 is exposed outside the glass shell 1 to complete the positioning and assembly; Step S3: The glass shell 1 has 12 perforations through an automatic packaging machine D02 (as shown in Figure 14) for heating and sintering to form A clamping part 11, so that the LED lamp core 110, the hollow glass tube 5 and the glass shell 1 form a heated and sintered semi-finished product 120; and step S4: the hollow glass tube 5 has a through hole at one end inside the glass shell 1 51. Vacuum and inflate the end of the hollow glass tube 5 outside the glass shell 1, and then seal the end of the hollow glass tube 5 outside the glass shell 1 (the length can be cut at the same time) to A vacuum-inflated finished product 130 is formed.

In some embodiments of the present invention, in step S1, the first guide wire 2 is welded and fixed to the LED filament 4 through the first guide wire welding rod 21, and is electrically connected, and the second guide wire 3 passes through the second guide wire. The wire welding rod 31 and the LED filament 4 are welded and fixed and electrically connected; and the welding and fixing of the first guide wire welding rod 21 and the LED filament 4 and the welding and fixing of the second guide wire welding rod 31 and the LED filament 4 can be one The automatic spot welding machine D01 (as shown in Figure 14) is realized.

As shown in Fig. 5 to Fig. 8, in the aforementioned step 1, the first guide wire 2, the second guide wire 3 and the LED filament 4 are fixed through a first jig 200 for welding and fixing; and the first The jig 200 includes a guide wire fixing mechanism 210.

As shown in Figures 9 to 12, in the foregoing step 2, a second fixture 300 is used to fix the LED lamp core 110, the hollow glass tube 5 and the glass shell 1 for positioning and assembly; and the second fixture 300 The 300 series can be designed to be shared with the first jig 200, or the second jig 300 can be different from the first jig 200, and the present invention is illustrated with the second jig 300 being different from the first jig 200 as an example , But not limited to this; the second jig 300 may include a body 310, a clamping hole 320, two clamping arms 330, 340, and a clamping seam 350. The clamping hole 320 can be penetrated on the top of the body 310 A predetermined place (such as the center) for the hollow glass tube to be tightly fixed, and the two clamping arms 330 and 340 are pivotally arranged at the top of the body 310, and are spaced apart from each other on the two clamping holes 320. On the other hand, when the two clamping arms 330 and 340 are close to each other, they are used to clamp the glass shell 1; and the gap 350 is set at a predetermined position on the top of the main body 310 to clamp the first guide wire 2 and the second guide at the same time. Wire 3.

In some embodiments of the present invention, in the step 4, an exhaust sealing machine D03 (as shown in Fig. 14) is used to realize the vacuuming and charging operation.

Furthermore, please refer to Fig. 14, after step S4, a step 5 is included, that is, an electronic component 6, a lamp cap 7 and an adhesive 8 are combined with the finished product 130 after being evacuated and inflated through a head mounting machine D04. , To form an LED bulb structure 400.

Therefore, with the above-mentioned structure and manufacturing method, the present invention does not need to manufacture components and manufacturing processes such as hot beads in the prior art, and does not necessitate the use of an upside-down packaging machine for production during the manufacturing process, resulting in the position of the lamp core The phenomenon of skew and the position of the lamp core is not in place, so that the non-hot bead type LED lamp core structure 100 of the present invention is not only simple in structure, convenient for production and manufacturing, but also able to firmly fix the LED lamp core, and has low defect rate and easy product quality. Control, save man-hours and save production and manufacturing costs.

100‧‧‧Bead-free LED lamp core structure

1‧‧‧Glass shell

11‧‧‧Clamping place

12‧‧‧Perforation

13‧‧‧Accommodation space

2‧‧‧First guide wire

21‧‧‧First guide wire welding rod

3‧‧‧Second guide wire

31‧‧‧Second guide wire welding rod

4‧‧‧LED filament

5‧‧‧Insulating glass tube

51‧‧‧Through hole

Claims (10)

A non-hot bead type LED lamp core structure, comprising: a glass shell, one end of which has a clamping part, and the glass shell defines an internal accommodating space; a first guide wire passing through and being fixed to the clip Seal, and a part of the first guide wire is located in the accommodating space of the glass shell, and another part of the first guide wire is located outside the glass shell; a second guide wire is mutually connected with the first guide wire Are arranged at intervals, the second guide wire passes through and is fixed at the pinch, and a part of the second guide wire is located in the accommodating space of the glass shell, and another part of the second guide wire is located in the glass shell Outside; an LED filament, set in the glass shell, the two ends of the LED filament are respectively and the first end of the guide wire located in the accommodating space and the second guide wire is located in the accommodating space One end is electrically connected; and a hollow glass tube passing through the clamping part, and one end of the hollow glass tube is located in the accommodating space of the glass shell and forms a through hole, and the other end of the hollow glass tube is It is located outside the glass shell, and is sealed after vacuuming and inflating the inside of the glass shell. The bead-free LED lamp core structure according to claim 1, wherein the first guide wire is welded and fixed to the LED filament through a first guide wire welding rod, and is electrically connected. The bead-free LED lamp core structure according to claim 1, wherein the second guide wire is welded and fixed to the LED filament through a second guide wire welding rod, and is electrically connected. A bead-free LED lamp core structure and a manufacturing method thereof include: step S1: electrically connecting a first guide wire and a second guide wire to both ends of an LED filament to form an LED lamp core; Step S2: Feed the LED lamp core and a hollow glass tube from a perforation of a glass shell into the glass shell, and make a part of the first guide wire, a part of the second guide wire, and the A part of the hollow glass tube is exposed outside the glass shell to complete positioning and assembly; step S3: the glass shell with the perforation is heated and sintered to form a clamping seal, so that the LED lamp core, The hollow glass tube and the glass shell form a heated and sintered semi-finished product; and step S4: the hollow glass tube has a through hole at one end located inside the glass shell, and the hollow glass tube is located outside the glass shell. One end is evacuated and inflated, and then the hollow glass tube is closed at one end outside the glass shell to form a vacuum-inflated finished product. The bead-free LED lamp core structure according to claim 4, wherein, in the step S1, the first guide wire is welded and fixed to the LED filament through a first guide wire welding rod, and is electrically connected, And the second guide wire is welded and fixed with the LED filament through a second guide wire welding rod, and is electrically connected. The bead-free LED lamp core structure according to claim 5, wherein the welding and fixing of the first guide wire welding rod and the LED filament and the welding and fixing of the second guide wire welding rod and the LED filament are Realized by an automatic spot welding machine. The bead-free LED lamp core structure according to claim 6, wherein in step S1, the first guide wire, the second guide wire, and the LED filament are fixed through a first jig to perform Welding and fixing. The bead-free LED lamp core structure according to claim 7, wherein in step S2, the LED lamp core, the hollow glass tube and the glass shell are fixed through a second jig for positioning and assembly , The first jig is different from the second jig. The bead-free LED lamp core structure according to claim 4, wherein in step S4, an exhaust sealing machine is used to realize the vacuuming and charging operation. The bead-free LED lamp core structure according to claim 4, wherein, after the step S4, the system It further includes a step S5, which is to combine an electronic component, a lamp cap, and an adhesive to form an LED bulb structure by using a head assembly machine to combine the vacuum-filled product with an electronic component.

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