LED filament and dual color LED bulb for easy automation production

Abstract

This invention discloses an LED filament and a dual-color LED bulb that facilitates automated production. The bulb includes a lamp holder, a filament, and a lamp cover. The lamp cover is disposed on the lamp holder and covers the filament. The filament includes a filament post, an exhaust pipe, and a filament. The filament post is inserted into the lower side of the lamp cover and is electrically connected to the filament. The exhaust pipe is connected to the filament post. The filament includes a first connecting electrode, a second connecting electrode, and a third connecting electrode arranged sequentially. A connecting body is provided between the first, second, and third connecting electrodes for interconnection. Two LED strips of different colors are respectively provided on the first and third connecting electrodes. The invention also includes insulating fasteners for fixation, which are laterally sleeved on the first, second, and third connecting electrodes. This invention has a simple structure, improves the adaptability and yield rate of automated production, and facilitates the mass automated production of dual-color LED bulbs.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lighting technology, in particular to a LED filament and a one-lamp double-color LED bulb convenient for automatic production. BACKGROUND

[0002] The LED bulb as a cold light source has been widely used in life. At present, in the production process of the LED bulb, the connection between the LED lamp strip in the filament and the communication pole, and the connection between the communication poles, often adopts the manual welding mode, which has low production efficiency, is not convenient for batch production, and also affects the health of the operators. Moreover, the filament welded by hand is easy to twist or loosen if it needs to be put into automatic production later, which affects the production efficiency and product qualification rate of the product, and cannot be put into large-scale automatic production.

[0003] At the same time, due to the influence of the structure of the filament and its production mode, the existing LED double-color bulb is difficult to be produced automatically, so the production quality and efficiency of the double-color LED bulb cannot be improved. SUMMARY

[0004] The purpose of the present application is to provide a filament for full-automatic production and improving production stability, and a one-lamp double-color LED bulb convenient for automatic production.

[0005] In order to solve the above technical problems, the present application adopts the following technical solutions:

[0006] A LED filament, comprising a first communication pole, a second communication pole and a third communication pole arranged in sequence, a communication body for mutual connection being arranged between the first communication pole, the second communication pole and the third communication pole, two LED lamp strips emitting different color light being respectively arranged on the first communication pole and the third communication pole, and further comprising an insulating fastener for fixation, the insulating fastener being transversely sleeved on the first communication pole, the second communication pole and the third communication pole.

[0007] Further, the LED lamp strip on the first communication pole is connected in series or parallel with the LED lamp strip of the third communication pole.

[0008] Further, the LED lamp strip is a straight strip type, or a U-shaped type, or a soft light body.

[0009] A one-lamp double-color LED bulb convenient for automatic production, comprising a lamp holder, a lamp wick and a lamp shade, the lamp shade being arranged on the lamp holder and covering the lamp wick, the lamp wick comprising a lamp wick column, an exhaust pipe and a filament, the lamp wick column being inserted into the lower side of the lamp shade, the lamp wick column being electrically connected with the filament, and the exhaust pipe being connected to the lamp wick column.

[0010] Further, the lampwick comprises a glass horn tube, a first conductive wire and a second conductive wire, the top end of the first conductive wire, the second conductive wire and the glass horn tube are fused to form a lampwick body, and a resistance and a driving element for driving the LED are arranged on the first conductive wire or the second conductive wire.

[0011] Further, the LED lamp strip on the first communication pole is connected in series with the LED lamp strip on the third communication pole, the first communication pole is connected with the first conductive wire, and the second communication pole is connected with the second conductive wire.

[0012] Further, the LED lamp strip on the first communication pole is connected in parallel with the LED lamp strip on the third communication pole, the first communication pole and the third communication pole are connected with the first conductive wire, and the second communication pole is connected with the second conductive wire.

[0013] Further, the exhaust pipe is fused to the top end of the glass horn tube by high temperature, and the exhaust pipe is used for vacuumizing and aerating.

[0014] Further, the lampshade is a plastic shell or a glass shell, and when the lampshade is a glass shell, only automatic equipment sintering is needed.

[0015] Further, the lampshade is a plastic shell, and the outer side of the glass horn tube is provided with a rubber plug for fixing and sealing.

[0016] Beneficial effects: The structure of the present application is simple and convenient for automatic production. The first communication pole, the second communication pole and the third communication pole are positioned by the insulating fastener, which prevents the communication pole from being deformed by external force during automatic production, improves the adaptability of the filament and the LED bulb automatic production, and improves the qualified rate of the product; different color LED lamp strips can be arranged on the first communication pole and the third communication pole, and the second communication pole plays a role of fixing or connecting the LED lamp strips on the first communication pole and the third communication pole, so as to meet the production demand of double-color LED lamp automation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the filament of example 1;

[0018] Figure 2 It is a structure schematic view of the lampwick of example 1;

[0019] Figure 3 It is a structure schematic view of the bulb of example 1;

[0020] Figure 4 It is a structure schematic view of the bulb of example 2;

[0021] Figure 5 It is a structure schematic view of the filament of example 3;

[0022] Figure 6 This is a schematic diagram of the structure of the lamp wick column in Example 3;

[0023] Figure 7 This is a schematic diagram of the structure of the light bulb in Example 3;

[0024] Figure 8 This is a schematic diagram of the structure of the light bulb in Example 4;

[0025] In the figure, lamp holder 1; lamp wick 2; lamp wick post 21; glass horn tube 211; first conductive wire 212; second conductive wire 213; resistor and driving element 214; rubber plug 215; exhaust pipe 22; filament 23; first connecting electrode 231; second connecting electrode 232; third connecting electrode 233; connecting body 234; LED light strip 235; insulating fastener 236; lamp cover 3. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1 As shown in Figure 3, an LED filament includes a first connecting electrode 231, a second connecting electrode 232, and a third connecting electrode 233 arranged vertically in sequence. A connecting body 234 for interconnection is provided between the first connecting electrode 231, the second connecting electrode 232, and the third connecting electrode 233. LED light strips 235 are respectively provided on the first connecting electrode 231 and the third connecting electrode 233. The LED light strips 235 on the first connecting electrode 231 are connected in parallel with the LED light strips 235 on the third connecting electrode 233. The second connecting electrode 232 serves to fix and connect the first connecting electrode 231 and the third connecting electrode 233. In this embodiment, the LED light strips 235 on the first connecting electrode 231 and the third connecting electrode 233 emit different colors. The first connecting electrode 231 and the third connecting electrode 233 are connected to the negative terminal of an external power supply, and the third connecting electrode 233 is connected to the positive terminal of the external power supply. In this embodiment, the first connecting electrode 231, the second connecting electrode 232, and the third connecting electrode 233 are an integral structure. The entire board of filaments 23 in this embodiment is first produced by automated equipment. Subsequently, the entire board of filaments 23 is cut and separated by automated equipment to form individual filaments 23. This replaces the method of manually welding the first connecting electrode 231, the second connecting electrode 232, and the third connecting electrode 233 in the prior art, which greatly improves production efficiency and prevents product quality problems caused by manual welding.

[0029] The embodiment also includes an insulating fastener 236 for fixation, which is transversely sleeved on the first communicating pole 231, the second communicating pole 232 and the third communicating pole 233. In the embodiment, the insulating fastener 236 is made of insulating material, and the material of the insulating fastener 236 in the embodiment is plastic. The insulating fastener 236 is sleeved on the first communicating pole 231, the second communicating pole 232 and the third communicating pole 233 by injection molding during the production of the whole-plate filament 23.

[0030] In the embodiment, the LED light bar 235 is a straight strip type light emitter, which is convenient for automatic welding and molding.

[0031] A one-bulb double-color LED bulb convenient for automatic production includes a lamp cap 1, a lampwick 2 and a lampshade 3. The lampshade 3 is arranged on the lamp cap 1 and covers the lampwick 2. The lampwick 2 includes a lampwick column 21, an exhaust pipe 22 and a filament 23. The lampwick column 21 is inserted into the lower side of the lampshade 3. The lampwick column 21 is electrically connected with the filament 23. The exhaust pipe 22 is connected with the lampwick column 21. The embodiment has strong applicability and can be put into mass automatic production, thereby solving the problems of low production efficiency and product qualification rate of the double-color LED bulb in the prior art.

[0032] The lampwick column 21 includes a glass horn pipe 211, a first conductive wire 212 and a second conductive wire 213. The top ends of the first conductive wire 212, the second conductive wire 213 and the glass horn pipe 211 are fused at high temperature to form a main body of the lampwick column 21. An electric resistance and a driving element 214 for driving an LED are arranged on the first conductive wire 212 or the second conductive wire 213.

[0033] In the embodiment, the first communicating pole 231 and the third communicating pole 233 are connected with the first conductive wire 212. The second communicating pole 232 is connected with the second conductive wire 213, so that a parallel structure is formed between the LED light bars 235 on the first communicating pole 231 and the third communicating pole 233. By connecting an external converter on the lamp cap 1 or arranging a converter (not shown in the figure) on the first conductive wire 212, the LED light bars 235 emitting different colors of light on the first communicating pole 231 or the third communicating pole 233 can be selectively communicated, so that the bulb of the embodiment can emit different colors of light according to requirements. Alternatively, the different color LED light bars 235 are simultaneously communicated, and two different colors of light are simultaneously emitted.

[0034] In the embodiment, the exhaust pipe 22 is fused to the top end of the glass horn pipe 211 by high temperature, and the fusion of the top end of the glass horn pipe 211 is flat, which can increase the fusion area and ensure sufficient fusion. The exhaust pipe 22 is used for vacuumizing and air charging, and needs to be sealed after vacuumizing to maintain the vacuum state. The design of the LED bulb can ensure the air tightness of the fusion of the exhaust pipe 22 and improve the product quality.

[0035] In the embodiment, the lampshade 3 is a plastic shell, and the outer side of the glass horn pipe 211 is sleeved with a rubber plug 215 for fixing and sealing. The rubber plug 215 can be sleeved by automatic equipment or manually.

[0036] Embodiment 2

[0037] As shown in Figure 4 , compared with embodiment 1, the difference is that the lampshade 3 is a glass shell. When the lampshade is a glass shell, only automatic equipment sintering is needed, which improves the processing efficiency. The outer side of the glass horn pipe 211 does not need to be sleeved with a rubber plug 215. The automatic packaging of the lampshade 3 in the embodiment adopts the existing traditional LED packaging process.

[0038] Embodiment 3

[0039] As shown in Figure 5 , an LED filament includes a first communication pole 231, a second communication pole 232 and a third communication pole 233 arranged vertically in sequence, a communication body 234 for connecting each other is arranged between the first communication pole 231, the second communication pole 232 and the third communication pole 233, LED light bars 235 are arranged on the first communication pole 231 and the third communication pole 233 respectively, and the LED light bars 235 on the first communication pole 231 are connected in series with the LED light bars 235 on the third communication pole 233. In the embodiment, the LED light bars 235 on the first communication pole 231 and the third communication pole 233 emit different colors, the first communication pole 231 is connected to the positive electrode of an external power supply, the third communication pole 233 is connected to the negative electrode of the external power supply, and the second communication pole 232 is vertically arranged between the first communication pole 231 and the second communication pole 232, and one side of the second communication pole 232 is connected to the communication body 234. In the embodiment, the second communication pole 232 is not connected to the electrode of the external power supply.

[0040] In the embodiment, the first communication pole 231, the second communication pole 232 and the third communication pole 233 are integrated structures, the whole plate filament 23 is produced by automatic equipment first, and then the whole plate filament 23 is cut and separated by automatic equipment to form a single filament 23, thereby replacing the manual welding mode of the first communication pole 231, the second communication pole 232 and the third communication pole 233 in the prior art, greatly improving the production efficiency, and preventing product quality problems caused by manual welding.

[0041] In the embodiment, the insulating fastener 236 is used for fixing, and the insulating fastener 236 is sleeved on the first communication pole 231, the second communication pole 232 and the third communication pole 233. In the embodiment, the insulating fastener 236 is made of insulating material, and the material of the insulating fastener 236 is plastic. The insulating fastener 236 is sleeved on the first communication pole 231, the second communication pole 232 and the third communication pole 233 by injection molding during the production of the whole plate filament 23. In the embodiment, the second communication pole 233 is not connected to an external power supply, and both the second communication pole 233 and the insulating fastener 236 can fix the LED light bar 235 on the first communication pole 231 and the third communication pole 232, thereby greatly improving the adaptability of automatic production.

[0042] In the embodiment, the LED light bar 235 is a straight strip type light emitter, which is convenient for automatic welding and molding.

[0043] A one-lamp double-color LED bulb convenient for automatic production includes a lamp holder 1, a lamp core 2 and a lampshade 3. The lampshade 3 is arranged on the lamp holder 1 and covers the lamp core 2. The lamp core 2 includes a lamp core column 21, an exhaust pipe 22 and a filament 23. The lamp core column 21 is inserted into the lower side of the lampshade 3. The lamp core column 21 is electrically connected with the filament 23. The exhaust pipe 22 is connected to the lamp core column 21. The embodiment has strong applicability and can be put into large-scale automatic production, thereby solving the problems of low production efficiency and low product qualification rate of the double-color LED bulb in the prior art.

[0044] The lamp core column 21 includes a glass horn pipe 211, a first conductive wire 212 and a second conductive wire 213. The top ends of the first conductive wire 212, the second conductive wire 213 and the glass horn pipe 211 are fused by high temperature to form a main body of the lamp core column 21. The first conductive wire 212 or the second conductive wire 213 is provided with a resistance and a driving element 214 for driving an LED.

[0045] In this embodiment, the first connecting electrode 231 is connected to the first conductive wire 212, and the third connecting electrode 233 is connected to the second conductive wire 213, so that the LED light strips 235 on the first connecting electrode 231 and the third connecting electrode 233 form a series structure. After the lamp head 1 is connected to an external power supply, it simultaneously connects the LED light strips 235 of different colors on the first connecting electrode 231 and the third connecting electrode 233, emitting two different light colors.

[0046] In this embodiment, the exhaust pipe 22 is fused to the top of the glass horn tube 211 at high temperature. The fusion point at the top of the glass horn tube 211 is flat, which increases the fusion area and ensures sufficient fusion. The exhaust pipe 22 is used for vacuuming and gas filling. After vacuuming is completed, the exhaust pipe 22 needs to be sealed to maintain the vacuum state. This design of the LED bulb can ensure the airtightness of the fusion point of the exhaust pipe 22 and improve product quality.

[0047] In this embodiment, the lampshade 3 is a plastic shell, and the outer side of the glass horn tube 211 is fitted with a rubber plug 215 for fixing and sealing. The rubber plug 215 can be fitted by automated equipment or manually.

[0048] Example 4

[0049] like Figure 8 As shown, the difference between this embodiment and embodiment 3 is that the lampshade 3 is a glass shell. When the lampshade is a glass shell, it only needs to be sintered by automated equipment, which improves production efficiency. The outer side of the glass speaker tube 211 does not need to be fitted with a rubber plug 215. The automated packaging of the lampshade 4 in this embodiment adopts the existing traditional LED packaging process.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. An LED filament, characterized in that, The device includes a first connecting electrode, a second connecting electrode, and a third connecting electrode arranged in sequence. A connecting body is provided between the first connecting electrode, the second connecting electrode, and the third connecting electrode for interconnection. Two LED light strips emitting different colors of light are provided on the first connecting electrode and the third connecting electrode, respectively. The device also includes an insulating fastener for fixing. The insulating fastener is horizontally sleeved on the first connecting electrode, the second connecting electrode, and the third connecting electrode. No LED light strip is provided on the second connecting electrode. The second connecting electrode serves to fix and connect the first connecting electrode and the third connecting electrode. The first connecting electrode, the second connecting electrode, and the third connecting electrode are an integral structure.

2. The LED filament according to claim 1, characterized in that, The LED strip on the first connecting electrode is connected in series or in parallel to the LED strip on the third connecting electrode.

3. The LED filament according to claim 1, characterized in that, The LED light strip is a straight strip, a U-shaped strip, or a flexible light-emitting body.

4. A dual-color LED bulb that is easy to automate production, characterized in that, The lamp includes a lamp holder, a lamp core, and a lamp cover. The lamp cover is disposed on the lamp holder and covers the lamp core. The lamp core includes a lamp core post, an exhaust pipe, and an LED filament as described in any one of claims 1-3. The lamp core post is inserted into the lower side of the lamp cover and is electrically connected to the LED filament as described in any one of claims 1-3. The exhaust pipe is connected to the lamp core post.

5. A dual-color LED bulb that is easy to automate production according to claim 4, characterized in that, The lamp core column includes a glass horn tube, a first conductive wire, and a second conductive wire. The first conductive wire, the second conductive wire, and the top of the glass horn tube are fused together at high temperature to form the lamp core column body. A resistor and a driving element for driving the LED are provided on the first conductive wire or the second conductive wire.

6. A dual-color LED bulb for easy automated production according to claim 5, characterized in that, The LED strip on the first connecting electrode is connected in series with the LED strip on the third connecting electrode. The first connecting electrode is connected to the first conductive wire, and the third connecting electrode is connected to the second conductive wire.

7. A dual-color LED bulb that is easy to automate production according to claim 5, characterized in that, The LED strip on the first connecting electrode is connected in parallel to the LED strip on the third connecting electrode. The first and third connecting electrodes are connected to the first conductive wire, and the second connecting electrode is connected to the second conductive wire.

8. A dual-color LED bulb that is easy to automate production according to claim 5, characterized in that, The exhaust pipe is fused to the top of the glass horn tube at high temperature, and is used for vacuuming and gas filling.

9. A dual-color LED bulb for easy automated production according to claim 8, characterized in that, The lampshade is a plastic shell or a glass shell.

10. A dual-color LED bulb for easy automated production according to claim 9, characterized in that, The lampshade is a plastic shell, and the outside of the glass horn tube is fitted with a rubber plug for fixing and sealing.

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