Decorative bulb with multiple LED light bars

Abstract

The utility model relates to the technical field of lamps, and discloses a decorative bulb with multiple LED lamp strips, which comprises a threaded lamp holder and a bulb shell connected with the threaded lamp holder, and further comprises a core column structure, and the core column structure comprises a core column support, at least two LED lamp filaments, a supporting lead a, a lead b and a lead c. The core column support is formed by plastic materials and comprises a cylindrical part at the lower end, a fixing part in the middle and a supporting part at the upper end. The cylindrical part is tightly assembled at the opening part of the bulb shell, and the fixing part and the supporting part extend into the bulb shell; the decorative bulb has the advantages that the core column structure of an existing decorative bulb is improved, the low-cost plastic core column is adopted to replace a traditional high-cost glass core column, and therefore the production cost of the bulb is remarkably reduced, and the problem that the production cost of a traditional decorative bulb is too high is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a decorative bulb with multiple LED light strips. Background Technology

[0002] As living standards improve, more and more consumers are keen to use decorative light bulbs to beautify their environment and create ambiance. Decorative light bulbs typically consist of three parts: the bulb shell, the lamp holder, and the wick.

[0003] Chinese patent CN202322127375.1 discloses an LED bulb with a fixed conductive filament, comprising a lamp core consisting of a glass horn tube, a filament, a metal conductive wire, an exhaust pipe, a resistor, and connecting wires, and a lamp housing consisting of a glass bulb, a glass fusion zone, and a lamp holder. In this prior art, the glass horn tube, as the main component of the bulb core, primarily functions to support and fix the filament. However, due to the high cost of glass raw materials and the complex manufacturing process, the manufacturing cost of existing decorative bulbs remains high, bringing many adverse effects to bulb production. Furthermore, directly replacing the filament with ordinary plastic is difficult to withstand the high temperatures during filament operation. Therefore, the inventors have developed a new invention to overcome these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-LED strip decorative light bulb that is low-cost.

[0005] To achieve the above objectives, this utility model provides a multi-LED strip decorative light bulb, comprising a threaded lamp holder and a bulb shell connected to the threaded lamp holder, and a core column structure. The core column structure includes a core column bracket, at least two LED filaments, a support wire a, a wire b, and a wire c. The core column bracket is molded from plastic material and includes a cylindrical portion at the lower end, a fixing portion in the middle, and a supporting portion at the upper end. The cylindrical portion is tightly fitted into the opening of the bulb shell, and the fixing portion and the supporting portion extend into the bulb shell. The support wire a passes through the cylindrical portion to the end of the supporting portion to form support for the core column bracket. One end of the wires b and c passes through the cylindrical portion and the fixing portion in sequence and extends into the bulb shell. One end of one LED filament is electrically connected to the support wire a, and the other end is electrically connected to the wire b. One end of the other LED filament is electrically connected to the support wire a, and the other end is electrically connected to the wire c. The support wire a is electrically connected to the center electrode of the threaded lamp holder, and the wires b and c are electrically connected to the side electrodes of the threaded lamp holder.

[0006] Preferably, the cylindrical portion has an inclined portion on its side wall, and the inclined portion has multiple elastic gaps.

[0007] Preferably, the fixing part and the cylindrical part are separate structures; the bottom end of the fixing part is provided with a support tube, and the cylindrical part is provided with a through hole for tightly assembling the support tube; the support wire a passes through the support tube from the through hole and enters the fixing part; wire receiving holes are also provided on both sides of the through hole for wire b and wire c to pass through.

[0008] Preferably, a platform portion is further provided between the fixing portion and the support tube, and the platform portion abuts against the top end of the cylindrical portion.

[0009] Preferably, it also includes a power board, which is disposed at the bottom of the platform; both wire b and wire c are electrically connected to the power board.

[0010] Preferably, the cylindrical portion is hollow and has an opening at the top; the platform portion is rectangular, and a heat dissipation gap is formed between the platform portion and the cylindrical portion.

[0011] Preferably, the diameter of the supporting wire a is greater than the diameters of the wires b and c.

[0012] Preferably, the supporting wires a, b, and c are all integrally injection molded with the fixing part.

[0013] Preferably, the upper part of the support wire a extends outward from the support portion and is provided with a plurality of first conductive wires for electrically connecting the LED filament.

[0014] Preferably, both conductor b and conductor c include a main conductor and multiple branch conductors connected to the main conductor.

[0015] Beneficial effects: Compared with the prior art, this utility model is a decorative light bulb with multiple LED light strips, and it has the following advantages:

[0016] 1. Improve the core structure of existing decorative light bulbs by replacing the traditional high-cost glass core with a low-cost plastic core, thereby significantly reducing the production cost of the bulbs and effectively solving the problem of excessively high production costs of traditional decorative light bulbs;

[0017] 2. The overall bulb core column can be welded with two or more LED filaments. This structure not only effectively increases the brightness of the bulb, but also the multiple LED filaments form a core column structure of a specific shape to enhance the aesthetics of the bulb, making the bulb highly decorative. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the core column support structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the first conductive wire and the branch wire structure of this utility model.

[0021] Figure 4 This is a schematic diagram of another embodiment of the core column support of this utility model.

[0022] Figure 5 This is a schematic diagram of the fixing part structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the internal structure of the cylindrical part of this utility model.

[0024] The reference numerals in the figures include:

[0025] Threaded lamp holder--1, bulb shell--2, core pillar structure--3, core pillar bracket--4, cylindrical part--41, inclined part--411, elastic gap--412, through hole--413, wire receiving hole--414, fixing part--42, support tube--421, support part--43, platform part--44, heat dissipation gap--45, LED filament--5, support wire a--6, first conductive wire--61, wire b--7, main wire--71, branch wire--72, wire c--8, power board--9. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1 to 6 This utility model will be described in detail.

[0027] This utility model relates to a multi-LED strip decorative light bulb, comprising a threaded lamp holder 1 and a bulb shell 2 connected to the threaded lamp holder 1, and a core column structure 3. The core column structure 3 includes a core column bracket 4, at least two LED filaments 5, a support wire a6, a wire b7, and a wire c8. The core column bracket 4 is molded from plastic material and includes a cylindrical portion 41 at the lower end, a fixing portion 42 in the middle, and a support portion 43 at the upper end. The cylindrical portion 41 is tightly fitted into the opening of the bulb shell 2, and the fixing portion 42 and the support portion 43 extend into the bulb shell 2. The support wire a6 passes through the cylindrical portion 41 to the end of the support portion 43 to form support for the core column bracket 4. One end of the wires b7 and c8 passes through the cylindrical portion 41 and the fixing portion 42 in sequence and extends into the bulb shell 2. One end of one LED filament 5 is electrically connected to the support wire a6, and the other end is electrically connected to the wire b7. One end of the other LED filament 5 is electrically connected to the support wire a6. 6. The other end is electrically connected to wire c8; the supporting wire a6 is electrically connected to the center electrode of the threaded lamp holder 1, and wires b7 and c8 are electrically connected to the side electrodes of the threaded lamp holder 1. Here, the center electrode refers to the electrical contact point at the center of the end face of the threaded lamp holder, and the side electrode refers to the inner wall of the threaded lamp holder.

[0028] Since the bulb generates a high temperature when it is working, in order to prevent the core column bracket from deforming or bending due to heat, a support wire a6 is set inside the core column bracket 4. On the one hand, it can play a hidden conductive role, and on the other hand, it can play a rigid support role for the core column bracket 4, which can effectively prevent the problem of heat deformation or core column bending.

[0029] Compared with traditional decorative light bulbs, this utility model has the following advantages: 1. It improves the core column structure of existing decorative light bulbs by using a low-cost plastic core column to replace the traditional high-cost glass core column, thereby significantly reducing the production cost of the bulb and effectively solving the problem of excessively high production costs of traditional decorative light bulbs; 2. The core column of the entire bulb can be welded with two or more LED filaments, such as two-filament bulbs, four-filament bulbs, six-filament bulbs, etc. This structure not only effectively increases the brightness of the bulb, but also the multiple LED filaments form a core column structure of a specific shape to enhance the aesthetics of the bulb, making the bulb highly decorative.

[0030] Preferably, the cylindrical part 41 has an inclined part 411 on its side wall, and the inclined part 411 has multiple elastic gaps 412. This makes it easier to tightly assemble the cylindrical part 41 into the opening of the bubble shell 2, thereby improving assembly efficiency.

[0031] In this technical solution, the core column support 4 has multiple embodiments. As another embodiment, such as... Figure 4 As shown, when the fixing part 42 and the cylindrical part 41 are separate structures, a support tube 421 is provided at the bottom of the fixing part 42, and the cylindrical part 41 has a through hole 413 for tightly assembling the support tube 421. Tightly assembling the support tube 421 into the through hole 413 securely connects the cylindrical part 41 and the fixing part 42. At this time, the support wire a 6 passes through the support tube 421 from the through hole 413 and enters the fixing part 42; wire receiving holes 414 are also provided on both sides of the through hole 413 for wires b 7 and c 8 to pass through. Here, the support tube 421 not only serves a connecting and supporting function but also accommodates the support wire a 6.

[0032] Preferably, a platform portion 44 is further provided between the fixing portion 42 and the support tube 421, and the platform portion 44 abuts against the top end of the cylindrical portion 41. When the support tube 421 is assembled to the point where the platform portion 44 just abuts against the top end of the cylindrical portion 41, it indicates that the fixing portion 42 has been assembled in place. Here, the platform portion 44 has a positioning function and also has the function of assisting the support tube 421 in supporting the fixing portion 42.

[0033] This technical solution also includes a power board 9, which has a compact structure. The power board 9 is located at the bottom of the platform part 44, and the support tube 421 passes through and fixes the power board 9. The wires b 7 and c 8 are both electrically connected to the power board 9. After the LED filament 5 is connected in series with the power board 9, intelligent control of the bulb can be realized, expanding the applicable range of the bulb.

[0034] To improve the heat dissipation performance of the core pillar structure 3, such as Figure 4 As shown, the cylindrical portion 41 is hollow and has an opening at its top; the platform portion 44 is rectangular, and a heat dissipation gap 45 is formed between the platform portion 44 and the cylindrical portion 41. The heat generated by the filament and conductive wires can be transferred out of the core structure 3 through the heat dissipation gap 45 from the hollow interior of the cylindrical portion 41, thus serving a heat dissipation function and extending the service life of the entire core structure 3. Furthermore, the hollow cylindrical portion 41 saves more raw materials, reduces the manufacturing cost of the core structure 3, and also better accommodates the power board 9.

[0035] Preferably, the diameter of the supporting wire a6 is approximately 1 mm, and the diameters of the wires b and c are approximately 0.5 mm; the diameter of the supporting wire a6 is larger than the diameters of the wires b7 and c8. In this technical solution, the supporting wire a6 serves as the positive electrode wire of the bulb, while the wires b7 and c8 serve as the negative electrode wires. The current collected by the wires b7 and c8 flows to the supporting wire a6, thus forming a complete electrical circuit. The larger diameter of the supporting wire a6 ensures that the collected current is always stably transmitted to the lamp holder, which is beneficial to improving the safety performance of the bulb and extending its service life; on the other hand, the larger diameter of the supporting wire a6 also serves to support the entire core column structure 3.

[0036] Preferably, the supporting wires a6, b7 and c8 are all integrally injection molded with the fixing part 42. This structure directly presses and fixes the three wires arranged side by side in the core column bracket 4, directly positioning the wires and preventing them from falling off. At the same time, this process is simple, and the wires can be directly positioned in the core column bracket 4 using the simplest process.

[0037] Meanwhile, the fixing part 42 of this technical solution has a flat structure, which makes it easier for the later automated equipment to position the core column bracket 4 and speed up the welding of the LED filament 5.

[0038] In this technical solution, the upper part of the support wire a 6 extends outward from the support part 43 and is provided with a plurality of first conductive wires 61 for electrically connecting the LED filament 5.

[0039] As one embodiment, both conductor b 7 and conductor c 8 include a main conductor 71 and multiple branch conductors 72 connected to the main conductor 71, wherein the main conductor 71 is disposed in the fixing part 42 and fixed by the fixing part 42. Figure 3 As shown, the branch wire 72 corresponds to the first conductive wire 61 and is used to realize a bulb scheme that welds two or more light strips, such as a four-filament bulb, a six-filament bulb, etc.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A decorative LED light bulb, comprising a threaded lamp holder (1) and a bulb shell (2) connected to the threaded lamp holder (1), characterized in that: It also includes a core pillar structure (3), which includes a core pillar bracket (4), at least two LED filaments (5), a supporting wire a (6), a wire b (7), and a wire c (8); the core pillar bracket (4) is made of plastic material and includes a cylindrical part (41) at the lower end, a fixing part (42) in the middle, and a supporting part (43) at the upper end; the cylindrical part (41) is tightly fitted to the opening of the blister shell (2), and the fixing part (42) and the supporting part (43) extend into the blister shell (2); The supporting wire a (6) passes through the cylindrical part (41) to the end of the supporting part (43) to form a support for the core column bracket (4); one end of the wires b (7) and c (8) passes through the cylindrical part (41) and the fixing part (42) in sequence and extends into the bulb shell (2); one end of one LED filament (5) is electrically connected to the supporting wire a (6) and the other end is electrically connected to the wire b (7); one end of another LED filament (5) is electrically connected to the supporting wire a (6) and the other end is electrically connected to the wire c (8); The supporting wire a (6) is electrically connected to the center electrode of the threaded lamp holder (1), and the wires b (7) and c (8) are electrically connected to the side electrodes of the threaded lamp holder (1).

2. The decorative bulb with multiple LED strips according to claim 1, characterized in that: The cylindrical part (41) has an inclined part (411) on its side wall, and the inclined part (411) has multiple elastic gaps (412).

3. A decorative light bulb with multiple LED strips according to claim 1, characterized in that: The fixing part (42) and the cylindrical part (41) are separate structures; the bottom end of the fixing part (42) is provided with a support tube (421), and the cylindrical part (41) is provided with a through hole (413) for tightly assembling the support tube (421); the support wire a (6) passes through the through hole (413) into the support tube (421) and enters the fixing part (42); the two sides of the through hole (413) are also provided with wire receiving holes (414) for wire b (7) and wire c (8) to pass through.

4. A decorative light bulb with multiple LED strips according to claim 3, characterized in that: A platform (44) is also provided between the fixing part (42) and the support tube (421), and the top of the platform (44) abuts against the top of the cylindrical part (41).

5. A decorative light bulb with multiple LED strips according to claim 4, characterized in that: It also includes a power board (9), which is located at the bottom of the platform (44); the wires b (7) and c (8) are both electrically connected to the power board (9).

6. A decorative light bulb with multiple LED strips according to claim 4, characterized in that: The cylindrical part (41) is hollow and has an opening at the top; the platform part (44) is rectangular and a heat dissipation gap (45) is formed between the platform part (44) and the cylindrical part (41).

7. A decorative light bulb with multiple LED strips according to claim 1, characterized in that: The diameter of the supporting conductor a(6) is greater than the diameters of conductor b(7) and conductor c(8).

8. A decorative light bulb with multiple LED strips according to claim 1, characterized in that: The supporting wires a (6), b (7) and c (8) are all integrally injection molded with the fixing part (42).

9. A decorative light bulb with multiple LED strips according to claim 1, characterized in that: The upper part of the support wire a (6) extends outward from the support part (43) and is provided with a plurality of first conductive wires (61) for electrically connecting the LED filament (5).

10. A decorative bulb with multiple LED strips according to any one of claims 1 to 9, characterized in that: Both conductor b (7) and conductor c (8) include a main conductor (71) and multiple branch conductors (72) connected to the main conductor (71).

Images