CN206112580U - LED Filament Lamp - Google Patents

Abstract

The utility model provides a LED filament lamp, includes bulb, bracing piece, two at least power cords and two at least LED filament strips, every LED filament strip all includes the base plate, sets up the LED chip on the base plate and fixes the electrode slice at this base plate both ends, the one end of electrode slice is connected with the LED chip electricity on the base plate respectively, the other end of electrode slice is connected with the electrode slice electricity of another LED filament strip or is connected with the one end electricity of power cord, so that LED filament strip forms electrical connection structure with two at least power cords, and the one end of this bracing piece is fixed on this bulb, and the other end of this bracing piece is connected with at least one LED filament strip in order to support this LED filament strip. The support rod of the LED filament lamp replaces a core column and a metal wire in the existing LED filament lamp, and the electrode plates of the LED filament lamp are creatively and directly electrically connected together, so that the LED filament lamp has the advantages of high structural reliability and simple production process.

Description

LED Filament Lamp

technical field

The utility model relates to the lighting field, in particular to an LED filament lamp.

Background technique

At present, with the maturity of LED chip manufacturing and packaging technology, the cost of LED components has been greatly reduced, and LEDs have been used more and more widely. In the field of LED lighting, the energy-saving and long-life advantages of LED have been fully reflected. More and more users are replacing traditional lamps such as incandescent lamps with LED lamps, especially LED filament lamps, which have almost the same appearance as traditional incandescent lamps. With the favor of users, more and more LED filament lamps are emerging on the market.

However, the stems of the LED filament lamps emerging on the market are usually made of glass to support multiple LED filament strips. In order to form a series or parallel electrical connection relationship between different LED filament strips, one or two sections of metal wires need to be poured and fixed at the top of the stem for electrical connection and fixation between the LED filament strips. However, since the stem is made of glass, it is easy to break during production and transportation, and one or two sections of metal wire need to be poured on the top of the stem, so that not only the qualified rate of the stem and LED filament lamps is low , and increase the process steps, reducing the production efficiency of the product.

Utility model content

In view of this, it is necessary to provide an LED filament lamp with high structural reliability and simple production process.

An LED filament lamp, comprising a light bulb, a support rod, at least two power lines and at least two LED filament strips, each LED filament strip includes a substrate, an LED chip arranged on the substrate, and electrode sheets fixed at both ends of the substrate , one end of the electrode sheet is electrically connected to the LED chip on the substrate, and the other end of the electrode sheet is electrically connected to the electrode sheet of another LED filament strip or is electrically connected to one end of the power line, so that the LED filament The bar forms an electrical connection structure with at least two power lines, one end of the support bar is fixed on the light bulb, and the other end of the support bar is connected with at least one LED filament bar to support the LED filament bar.

Furthermore, the light bulb includes a bulb shell and a stem, the bulb shell and the stem form a closed space, the power cord extends into the closed space from the outside, and the LED filament strip is accommodated in the closed space.

Furthermore, the airtight space is filled with cooling gas.

Furthermore, the support rod is made of rigid material, and the other end of the support rod is fixedly connected with the LED filament strip.

Furthermore, the other end of the support rod is welded to the electrode pads of the two LED filament strips.

Furthermore, the LED filament strips are all rigid structures, and the LED filament strips are first connected to each other and welded to form a rigid ring structure.

Furthermore, the other end of the electrode piece is fixed to the electrode piece of another LED filament strip by welding to realize electrical connection.

Furthermore, it includes four LED filament strips, two support rods and four power lines, and the LED filament strips are connected in series with two power supply lines respectively, and the other end of each support rod is connected with the two LED filament strips. The electrical connection of the electrode sheet is welded.

Furthermore, it includes two LED filament strips, two support rods and two power cords, one end of the LED filament strips is respectively electrically connected to one of the power cords, and the other end of the LED filament strips is respectively connected to the The other ends of the two support rods are electrically connected, and then the other ends of the two support rods are electrically connected to each other to form a connection structure with two support rods and two LED filament strips in series.

Furthermore, the support rod is straight, and the electrode pieces at the other end of each LED filament are electrically connected together and fixed to the other end of the support rod by welding.

Furthermore, each support rod includes a parallel section and a bent section, the parallel sections of the two support rods are fixed on the stem parallel to each other, and the bent sections are all facing away from the other support rod After being bent relative to the parallel section, it is welded to the electrical connection of the electrode sheets of the two LED filament strips.

Furthermore, four LED filament strips are included, and the electrode pieces at one end of the four LED filament strips are welded to the other end of the support rod.

Furthermore, the support rods are made of metal wires with certain structural strength.

Furthermore, the power cord is made of a wire that can be bent and has a certain structural strength.

Furthermore, it also includes a driving assembly, an insulating sleeve and a lamp holder, the driving assembly is accommodated and fixed in the insulating sleeve, the insulating sleeve is accommodated in the lamp holder, and the driving assembly is electrically connected to the other end of the power cord and the lamp holder respectively. connected, the lamp holder is fixed on one end of the bulb.

Compared with the prior art, the LED filament lamp is provided with a support rod on the stem, and the LED filament strip is connected and supported by the support rod, so that the LED filament strip is firmly fixed in the LED filament lamp. Since the setting of the support rod replaces the core column and the metal wire in the existing LED filament lamp, and the electrode pieces of the LED filament strip are creatively and directly electrically connected to each other, the LED filament lamp has high structural reliability and simple production process. The advantages.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the LED filament lamp of the first embodiment of the present invention.

Fig. 2 is a schematic diagram of the assembled LED filament lamp shown in Fig. 1 .

Fig. 3 is a perspective view of the LED filament lamp shown in Fig. 1 without the lamp cap and bulb shell.

Fig. 4 is a perspective view of the second embodiment of the LED filament lamp of the present invention.

Fig. 5 is a front view of the LED filament lamp of the third embodiment of the present invention.

Fig. 6 is a perspective view of an LED filament lamp according to a fourth embodiment of the present invention.

Fig. 7 is a front view of the LED filament lamp of the fifth embodiment of the present invention.

Explanation of reference signs:

10 Bulb 11 Bulb housing

20 Support rod 12 Stem

30 Power Cord 13 Confined Space

40 LED filament strip 14 Connecting part

50 drive assembly 21 parallel section

60 Insulation sleeve 22 Bending section

70 lamp head 41 base plate

42 electrodes

detailed description

The LED filament lamp of the first embodiment of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 3 , the LED filament lamp 100 includes a bulb 10 , a support rod 20 , two power lines 30 , four LED filament strips 40 , a driving assembly 50 , an insulating sleeve 50 and a lamp cap 70 . Each LED filament bar 40 includes a substrate 41 , an LED chip (not shown) disposed on the substrate 41 , and electrode sheets 42 fixed at two ends of the substrate 41 . One end of the electrode sheet 42 is electrically connected to the LED chip on the substrate 41, and the other end of the electrode sheet 42 is electrically connected to the electrode sheet 42 of another LED filament bar 40 or is electrically connected to one end of the power line 30, so that the The LED filament bar 40 forms an electrical connection structure with at least two power lines 30 . The power cord 30 is made of bendable wire with certain structural strength. The power cord 30 can support the LED filament strip 40 fixed thereon to a certain extent, so that one end of the LED filament strip 40 is supported in the LED filament lamp against the influence of gravity or other external forces. At the same time, the power cord 30 Under the pressure of the LED filament strip 40, the original shape can be kept unchanged. One end of the support rod 20 is fixed on the bulb 10 , and the other end of the support rod 20 is connected to at least one LED filament bar 40 to support the LED filament bar 40 . These LED filament strips 40 are welded end to end to form a rigid ring structure. In this way, on the one hand, these LED filament strips 40 are connected in series; on the other hand, these LED filament strips 40 are welded and fixed to each other, and can be kept in the spatial position of the LED filament lamp to achieve uniform light emission at a large angle. The driving assembly 50 is accommodated and fixed in the insulating sleeve 50, the insulating sleeve 50 is accommodated in the lamp holder 70, the driving assembly 50 is respectively electrically connected with the other end of the power cord 30 and the lamp holder 70, and the lamp holder 70 is fixed on one end of the light bulb .

Please refer to FIG. 2 to FIG. 3 , the bulb 10 includes a bulb shell 11 and a stem 12 . The bottom of the stem 12 has a trumpet-shaped connecting portion 14, the shape of the connecting portion 14 is set corresponding to the opening shape of the bottom end of the bulb shell 11, and the connecting portion 14 and the bottom end of the bulb shell 11 are welded together by high temperature, so that the The bulb shell 11 and the stem 12 form a closed space 13 . The power cord 30 protrudes into the enclosed space 13 from outside. The power cord 30 is pre-embedded and fixed on the stem 12 , one end of the power cord 30 protrudes from the top of the stem 12 , and the other end of the power cord 30 protrudes from the bottom of the stem 12 . These LED filament strips 40 are accommodated in the enclosed space 13 . In order to enhance the dissipating speed of the heat generated by the LED filament strip 40 during operation, the airtight space 13 can be filled with a cooling gas, such as a gas filled with helium, neon, argon, nitrogen, or a combination of them. The mixed gas is used to speed up the transfer of the heat generated by the LED filament strip 40 to the bulb shell 11 and radiate from the bulb shell 11 to the outside.

Please refer to Fig. 3, the support rod 20 is made of rigid material, preferably, the support rod 20 is made of a metal wire with a certain structural strength, such as made of a rigid metal or alloy wire; like this, the support rod The structural strength of 20 is sufficient to support these LED filament strips 40. After these LED filament strips 40 are fixed on the support rod 20, the support rod 20 will not be deformed, so that the positions of these LED filament strips 40 and the support rod 20 are relative to the stem 12 No changes will be made. One end of the support rod 20 is fixed in the stem 12 of the bulb, and the other end of the support rod 20 is fixedly connected with the LED filament strip 40 . The support rod 20 is fixed at one end of the core column 12, and is only used for fixing, and is not electrically connected with other components. Each support rod 20 includes a parallel section 21 and a bent section 22. The parallel sections 21 of the two support rods 20 are fixed on the stem 12 in parallel with each other, and the bent section 22 faces away from the other support rod 20. The direction relative to the parallel segment 21 is bent and then welded to the electrical connection of the electrode pieces 42 of the two LED filament strips 40 . In this way, the LED filament strips 40 can form a relatively scattered arrangement, which not only enables the LED filament strips 40 to achieve the ring-like lighting characteristics of traditional black wire incandescent lamps, but also helps to achieve uniform lighting at a large angle.

Referring to FIG. 2 to FIG. 3 , each LED filament bar 40 has a substrate 41 , and electrodes 42 are provided at both ends of the substrate 41 for electrical connection with other components. The other end of the support rod 20 is welded to the electrode pads 42 of the two LED filament strips 40 , so that the LED filament strips 40 are firmly fixed on the support rod 20 . These LED filament strips 40 are all rigid structures. When one LED filament strip 40 is connected in series with another LED filament strip 40, the other end of the electrode sheet 42 is fixed to the electrode sheet 42 of another LED filament strip 40 by welding to Make an electrical connection. Because these LED filament strips 40 are rigid structures, after the electrode pieces 42 of two LED filament strips 40 are fixed by welding, they can always maintain the shape after welding and connection, without being affected by the gravity of the LED filament strips 40 themselves. A bending change or a relative positional movement occurs.

The utility model also provides a second embodiment, which provides another LED filament lamp 100a with a different connection structure. Please refer to FIG. 4 , the LED filament lamp 100a includes four LED filament strips 40 , two support rods 20 and four power lines 30 , and the LED filament strips 40 are connected in series with two power lines 30 respectively. The other end of 20 is welded to the electrode sheet 42 of two LED filament strips 40 to form two groups of light source groups that are connected in series by two LED filament strips 40 and each group emits light independently. The LED filament lamp 100a can realize a single group of light emitting under the intelligent control of the driving component 50, that is, one group of two LED filament strips 40 connected in series to emit light; or both groups of light source groups emit light. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

The utility model also provides a third embodiment, which provides another LED filament lamp 100b with a different connection structure. Please refer to FIG. 5 , the LED filament lamp 100 b includes two LED filament strips 40 , two support rods 20 and two power cords 30 . The support rod 20 is in a straight shape, and the electrode piece 42 at one end of each LED filament bar 40 is connected to one of the power lines 30, and the electrode piece 42 at the other end of each LED filament bar 40 is electrically connected together and fixed by welding. The other ends of the support rods 20 are then electrically connected to the other ends of the two support rods 20 to form a connection structure with two support rods 20 and two LED filament strips 40 in series. The LED filament lamp 100b has stronger shock resistance, and can be used in environments requiring high shock resistance. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

The utility model also provides a fourth embodiment, which provides another LED filament lamp 100c with a different connection structure. Referring to FIG. 6 , the LED filament lamp 100c includes a support rod 20 , two bifurcated power lines 30 , and four LED filament strips 40 . The support bar 20 is in a straight shape, and the electrode sheets 42 at one end of the four LED filament bars 40 are welded together with the other end of the support bar 20. Each power line 30 is bifurcated into two sub-power lines. The electrode pieces 42 at the other end of the LED filament strips 40 are respectively electrically connected to the corresponding sub-power lines, so that the four LED filament strips 40 form a two-string, two-parallel electrical connection structure. The bifurcated arrangement of the power cord 30 can reduce the number of power cords 30 arranged in the stem 12. Compared with the arrangement of four power cords 30 in Embodiment 2 of the present utility model, the airtightness of the enclosed space 13 can be increased. reliability. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

The utility model also provides a fifth embodiment, which provides another LED filament lamp 100d with a different connection structure. Please refer to FIG. 7 , the LED filament lamp 100d includes a support rod 20 , two power lines 30 and two LED filament strips 40 . The support rod 20 is in a straight shape. The electrode piece 42 at one end of the LED filament bar 40 is connected to one end of the two power lines 30 respectively. One ends are connected to form an electrical connection structure in which two LED filament strips 40 are connected in series. The structure of the LED filament lamp 100d is relatively simple, and the number of LED filament strips 40 used is small, which is suitable for low power designs. The rest of the structure is the same as that of the first embodiment, and will not be repeated here.

In summary, the LED filament lamp is provided with a support rod 20 made of rigid metal wires on the stem 12, compared with the use of glass material as the support rod in the prior art, the toughness and strength of the support rod 20 are improved, so as to This supports and connects each LED filament bar 40, and the electrode sheet 42 of each LED filament bar 40 can be directly welded and fixed on the other end of the support rod 20, which not only improves the finished product qualification rate of the stem 12 and the LED filament lamp, but also The process step of setting one or two additional metal wires at the other end of the support rod 20 is omitted, which greatly improves the qualification of the finished product of the stem 12 and the LED filament lamp, and improves the production efficiency of the product.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the utility model. within the scope of protection.

Claims (15)

1. a kind of LED filament lamp, including bulb, support bar, at least two power lines and at least two LED strands, each LED Filament bar includes substrate, the LED chip being arranged on substrate and the electrode slice for being fixed on the substrate two ends, it is characterised in that One end of the electrode slice electrically connects respectively with the LED chip on substrate, the other end of the electrode slice and another LED filament The electrode slice electrical connection of bar is electrically connected with one end of power line, so that the LED strand is linear with least two power supplys Into electric connection structure, one end of the support bar is fixed on the bulb, the other end of the support bar and at least one LED strand Connect to support the LED strand.

2. LED filament lamp according to claim 1, it is characterised in that：The bulb includes bulb housing and stem stem, the bulb housing Confined space is formed with the stem stem, the power line is stretched in the confined space from outside, and it is close that the LED strand is housed in this Close in space.

3. LED filament lamp according to claim 2, it is characterised in that：Filled with radiating gas in the confined space.

4. LED filament lamp according to claim 1, it is characterised in that：The support bar is made up of rigid material, the support bar The other end be fixedly connected with the LED strand.

5. LED filament lamp according to claim 4, it is characterised in that：The other end of the support bar and two LED strands Electrode slice electrical connection at weld.

6. LED filament lamp according to claim 1, it is characterised in that：The LED strand is rigid structure, described The mutually the first connected welding of LED strand forms rigid circulus.

7. LED filament lamp according to claim 1, it is characterised in that：The other end of the electrode slice and another LED The electrode slice of strand realizes electrical connection by being welded and fixed.

8. LED filament lamp according to claim 2, it is characterised in that：Including four LED strands, two support bars and Four power lines, the LED strand is connected respectively after connecting two-by-two with two power lines, the other end of every support bar and two Weld at the electrode slice electrical connection of bar LED strand.

9. LED filament lamp according to claim 2, it is characterised in that：Including two LED strands, two support bars and Two power lines, described LED strand one end electrically connects respectively with wherein one power line, the LED strand it is another One end electrically connects respectively with the other end of two support bars, and then the other end of two support bars is electrically connected to each other, Form the attachment structure with two support bars and two LED strand series connection.

10. LED filament lamp according to claim 9, it is characterised in that：The support bar is in vertical bar shape, every LED filament The electrode slice of the other end of bar is electrically connected and is fixedly welded on the other end of the support bar.

11. LED filament lamps according to claim 8, it is characterised in that：Every support bar includes parallel-segment and bending Section, the parallel-segment of two support bars is fixed in parallel to each other on the stem stem, and the bending segment is directed away from another The direction of support bar is with respect to the electrode slice place of the electrical connection welding after the parallel-segment bending with two LED strands.

12. LED filament lamps according to claim 1, it is characterised in that：Including four LED strands, four LED Together with the electrode slice of filament bar one end is welded to each other with the other end of the support bar.

13. LED filament lamps according to claim 4, it is characterised in that：The support bar is with certain structural strength Plain conductor is made.

14. LED filament lamps according to claim 1, it is characterised in that：The power line is bent and with certain knot The wire of structure intensity is made.

15. LED filament lamp according to claim 1, it is characterised in that：Also include drive component, insulation sleeve and lamp holder, Drive component storage is fixed in insulation sleeve, and the insulation sleeve is accommodated in lamp holder, drive component respectively with the power supply The other end of line and the lamp holder are electrically connected, and the lamp holder is fixed on one end of the bulb.