CN204704651U - LED silk lamp - Google Patents

Abstract

An LED filament lamp includes a bulb and an LED filament assembly, the LED filament assembly is fixed in the bulb, and also includes a drive board, a lamp cap and an inner liner, the inner liner is a shell structure made of insulating material, the The inner lining is arranged inside the lamp cap, the driving board is at least partly arranged inside the inner lining so that the driving board and the lamp cap are separated from each other, the LED filament assembly is electrically connected to the driving board, and the driving board is connected to the driving board. The base housing forms the electrical connection. The utility model is provided with an inner liner made of insulating material, and the inner liner is arranged inside the lamp cap, and the driving plate is at least partly arranged in the inner liner so that the driving plate and the lamp cap are separated from each other. Therefore, the problem of short circuit caused by the contact between the driving board and the lamp cap can be effectively avoided, and at the same time, it has the advantages of convenient assembly and simple structure.

Description

LED Filament Lamp

technical field

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

Background technique

LED filament lamp is a kind of LED lighting device with LED filament as light source, usually includes a transparent bulb shell, LED filament is set in the bulb shell, and gas is filled in the bulb shell, and finally realizes LED lighting. LED filaments can also be called LED lighting strips, and LED filament lamps can also be called LED bulbs, bulb lamps, and the like. LED filament lamps can achieve 360-degree light emission and have the advantages of high light utilization. Therefore, it is more and more favored by consumers and will become an important development direction. For example, the authorized announcement date is November 12, 2014, and the Chinese patent application number 201420674092.7 is a utility model named "LED Filament Lamp and Light Bulb", which includes a lamp base structure and a circuit board arranged in the lamp base structure. The structure includes a lamp cap shell and a support provided on the inner surface of the lamp cap shell, an assembly is provided on the support, and an assembly hole matching the position of the assembly is provided on the circuit board. The LED filament lamp with this structure can fix the circuit board on the lamp cap, but it still has the problem that the electrical connection between the circuit board and the lamp cap needs to be welded. .

Utility model content

In view of this, it is necessary to provide an LED filament lamp with a simple structure.

An LED filament lamp, comprising a bulb and an LED filament assembly, the LED filament assembly is fixed in the bulb, and also includes a drive board, a lamp cap shell and an inner liner, the inner liner is a shell structure made of insulating material, the The inner lining is arranged inside the lamp cap, the driving board is at least partly arranged inside the inner lining so that the driving board and the lamp cap are separated from each other, the LED filament assembly is electrically connected to the driving board, and the driving board is connected to the driving board. The base housing forms the electrical connection.

Compared with the prior art, the LED filament lamp is provided with an inner liner made of insulating material, and the inner liner is arranged inside the lamp cap shell, and the driving board is at least partly arranged inside the inner liner so that the driving board and the lamp cap The shells are arranged separately from each other. Therefore, the problem of short circuit caused by the contact between the driving board and the lamp cap can be effectively avoided, and at the same time, it has the advantages of convenient assembly and simple structure.

Description of drawings

Fig. 1 is a front view of the LED filament lamp of the first embodiment of the present invention.

Fig. 2 is a front sectional view of the LED filament lamp shown in Fig. 1 .

Fig. 3 is a perspective view of the lining in the LED filament lamp shown in Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Please refer to FIG. 1 to FIG. 3 for the LED filament lamp 100 of the first embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2 , the LED filament lamp 100 includes a bulb shell 10 and an LED filament assembly 30 , the LED filament assembly 30 is fixed in the bulb shell 10 , and also includes a drive board 40 , a cap shell 20 and an inner liner 50 , the inner liner 50 is a shell structure made of insulating material, the inner liner 50 is arranged in the lamp cap shell 20, the driving board 40 is at least partially arranged in the inner lining 50 so that the driving board 40 and the lamp cap The housings 20 are separated from each other, the LED filament assembly 30 is electrically connected to the driving board 40 , and the driving board 40 is electrically connected to the lamp base housing 20 .

Please refer to FIG. 1 , FIG. 2 and FIG. 3 , the lamp cap 20 is provided with a first electrode end 21 , a second electrode end 23 and an insulator 22 . In this embodiment, the lamp base shell 20 is a standard E27 screw lamp base structure. The first electrode end 21 is an annular side wall with thread grooves, the second electrode end 23 is a metal eye piece, and the insulating member 22 is an annular structure. Both upper and lower parts of the first electrode end 21 have openings, and the second electrode end 23 is connected to the first electrode end 21 through the insulating member 22 . The driving board 40 is provided with a first electrode 41 and a second electrode 42, and the lining 50 is provided with a through hole 53, and the first electrode 41 and the second electrode 42 of the driving board 40 pass through the through hole 53 respectively. It is electrically connected with the first electrode terminal 21 and the second electrode terminal 23 of the lamp base shell 20 .

Wherein, the inner lining 50 is fixed in the first electrode end 21, the first electrode 41 is a wire structure, and the first electrode 41 is bent and arranged between the inner lining 50 and the side wall of the lamp cap 20. An electrode 41 is electrically connected to the first electrode terminal 21 . The second electrode 42 is also a wire structure, which is pressed and fixed between the second electrode end 23 and the insulating member 22 .

Please refer to Fig. 1, Fig. 2 and Fig. 3, the inner liner 50 is made of deformable material, and the outer wall of the inner liner 50 is provided with a protruding ring 51, and the inner liner 50 is fixed on the first electric circuit through the protruding ring 51. Inside the extreme end 21 , the first electrode 41 is disposed between the protruding ring 51 and the first electrode end 21 . The side wall of the lining 50 is provided with a wire hanging slot 52 , the wire hanging slot 52 communicates with the through hole 53 , and the first electrode 41 passes through the wire hanging slot 52 .

Wherein, the end 21 of the first electrode 41 is provided with a spiral groove, and the outer wall of the lining 50 is provided with two protruding rings 51 at intervals, and the distance between the two protruding rings 51 corresponds to the groove of the spiral groove. Spacing settings.

Please refer to FIG. 1 and FIG. 2, the bulb 10 is a transparent or translucent glass bulb 10, the bulb 10 is arranged on the lamp cap 20, and the bulb 10 and the lamp cap 20 are fixed by welding paste powder .

The LED filament assembly 30 includes a stem 32 and an LED filament 31 , the LED filament 31 includes an LED chip and a transparent substrate, and the LED chip is packaged on the transparent substrate. A connecting post protrudes from the core post 32 toward the driving plate 40 . The driving plate 40 is provided with a connecting portion, and the connecting portion is clamped and fixed on the bottom end of the connecting post.

The bulb shell 10 and the LED filament assembly 30 form a closed cavity, which is filled with a gas with low molecular weight and high thermal conductivity, and the gas is used to transfer the heat generated by the LED filament assembly 30 to the bulb shell 10 . The gas can be all inert gases such as helium, hydrogen, oxygen, carbon dioxide, neon and argon. Gases such as ethers, methane, and ammonia can also be used.

Since the inner liner 50 is made of insulating material, the driving board 40 and the lamp cap shell 20 separated by the inner liner 50 can avoid the problem of short circuit due to contact. This makes the LED filament lamp 100 able to resist the larger vibrations that may be encountered during transportation and installation, and prevents the driving board 40 from accidentally contacting the lamp cap 20 . Since the wire hanging groove 52 is provided on the wall of the lining 50 , the first electrode 41 can be fixed by the wire hanging groove 52 , preventing the first electrode 41 from moving along the outer periphery of the lining 50 and affecting the electrical connection. Since the bulb shell 10 and the LED filament assembly 30 form a closed cavity, and the heat-conducting gas is filled in the closed cavity, the LED filament lamp 100 has the advantage of good heat dissipation effect. Since the bulb shell 10 and the lamp cap shell 20 are fixed by welding paste powder, the bulb shell 10 can be firmly fixed on the lamp cap shell 20 . Since the inner liner 50 and the lamp base shell 20 are in an interference assembly relationship, the buckle fitting of the inner liner 50 into the lamp base shell 20 can be firmly fixed without using other fixing structures.

When the LED filament lamp 100 is working, since the stem 32 is fixed on the driving board 40 through the connecting rod, the driving board 40 and the stem 32 form a fixed relationship, the relationship between the two can be effectively determined, and the driving board 40 is avoided. The movement causes the electrical connection relationship between the LED filament assembly 30 and the driving board 40 to be destroyed. The setting of the connecting column makes the overall structure more stable. Because the first electrode 41 is arranged between the inner liner 50 and the side wall of the lamp cap 20 by bending, and a protruding ring 51 is provided on the outer side wall of the inner liner 50 to press the first electrode 41, so that the first electrode 41 It is better to form an electrical connection with the side wall of the lamp housing 20, without the need for wires and other processes, the structure is optimized, and it is convenient for assembly and production.

To sum up, the LED filament lamp 100 separates the driving board 40 from the lamp cap 20 by setting the inner liner 50, which solves the problem of short circuit caused by the direct assembly of the driving board 40 into the lamp cap 20 in the prior art. The problem. The first electrode 41 of the driving board 40 is bent and arranged between the inner liner 50 and the side wall of the lamp cap 20, and a protruding ring 51 is further provided so that the first electrode 41 can stably form an electrical connection with the side wall of the lamp cap 20. connect. At the same time, through cleverly setting the electrical connection between the driving board 40 and the LED filament assembly 30 and the electrical connection between the driving board 40 and the lamp cap 20, the electrical connection structure of the whole lamp is optimized, and the whole lamp has the advantages of simple structure and convenient assembly.

It can be understood that the wire hanging groove 52 is provided on the side wall of the inner liner 50 mainly to prevent the first electrode 41 from vibrating along the outer side wall of the inner liner 50 and affecting the electrical connection. Therefore, when the fit between the inner lining 50 and the side wall of the lamp cap 20 is tight, the first electrode 41 can be fixed, or other fixing methods can be used. When the electrical connection between the first electrode 41 and the side wall of the lamp cap 20 is not affected, the wire hanging groove 52 may not be provided, or the wire hanging groove 52 may be provided as other fixed structures. Such as opening perforations or setting hooks, etc.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (10)

1. An LED filament lamp, comprising a bulb and an LED filament assembly, the LED filament assembly is fixed in the bulb, characterized in that it also includes a drive board, a lamp cap and an inner lining, the inner lining is made of insulating material The shell structure, the inner lining is arranged in the lamp cap, the driving board is at least partly arranged in the inner lining so that the driving board and the lamp cap are separated from each other, and the LED filament assembly and the driving board form an electrical connection. connected, the drive board forms an electrical connection with the lamp cap. 2. The LED filament lamp according to claim 1, characterized in that a first electrode end, a second electrode end and an insulator are provided on the lamp cap, and the first electrode end and the second electrode end are insulated through the insulating member. The driver board is provided with a first electrode and a second electrode, and the lining is provided with a through hole, and the first electrode and the second electrode of the driver board pass through the through hole and the first electrode of the lamp cap respectively. The first electrode end and the second electrode end are electrically connected. 3. The LED filament lamp according to claim 2, wherein the first electrode end is an annular side wall, the lining is fixed inside the first electrode end, the first electrode is a wire structure, and the first The electrode is bent and arranged between the inner liner and the side wall of the lamp cap, and the first wire is electrically connected to the first electrode end. 4. The LED filament lamp according to claim 3, characterized in that, the inner lining is made of deformable material, and the outer wall of the inner lining is provided with a protruding ring, and the inner lining is fixed on the first through the protruding ring. Inside the electrode end, the first electrode is disposed between the protruding ring and the first electrode end. 5. The LED filament lamp according to claim 4, characterized in that, the first electrode end is provided with a spiral groove, and the outer wall of the lining is provided with two protruding rings at intervals, and the two protruding rings The pitch corresponds to the groove pitch of the spiral groove. 6. The LED filament lamp according to claim 3, characterized in that, the side wall of the inner lining is provided with a hanging wire groove, and the hanging wire groove communicates with the through hole, and the first electrode passes through the hanging wire groove. 7. The LED filament lamp according to claim 1, characterized in that, the bulb is a transparent or translucent glass bulb, the bulb is arranged on the lamp cap, and the bulb and the lamp cap are connected by welding paste. powder to fix. 8 . The LED filament lamp according to claim 1 , wherein the LED filament assembly includes a stem and an LED filament, the LED filament includes an LED chip and a transparent substrate, and the LED chip is packaged on the transparent substrate. 9. The LED filament lamp according to claim 1, wherein the LED filament assembly comprises a stem and an LED filament, the stem protrudes toward the drive plate with a connecting column, the drive plate is provided with a connecting portion, The connecting portion is clamped and fixed on the bottom end of the connecting column. 10. The LED filament lamp according to claim 1 or 7, characterized in that, the bulb and the LED filament assembly form a closed cavity, and the closed cavity is filled with a gas with low molecular weight and high thermal conductivity, and the gas is used for The heat generated by the LED filament assembly is transferred to the bulb.