CN204592939U

CN204592939U - LED tubular lamp

Info

Publication number: CN204592939U
Application number: CN201520231509.7U
Authority: CN
Inventors: 陈灿荣
Original assignee: YUNCHENG PHOTOELECTRIC Co Ltd
Current assignee: YUNCHENG PHOTOELECTRIC Co Ltd
Priority date: 2015-04-17
Filing date: 2015-04-17
Publication date: 2015-08-26
Anticipated expiration: 2025-04-17

Abstract

The utility model discloses a kind of LED tubular lamp.Flexible circuit bearing bed using roomy soft heat-conducting layer as the basic unit that can be pasted to tubulose lampshade internal face completely, then is arranged on this soft heat-conducting layer by thermal conductivity solid by the utility model; So, not only circuit layer can be formed on this flexible circuit bearing bed further, simultaneously, because roomy soft heat-conducting layer attaches the internal face of tubulose lampshade completely, the heat energy produced when therefore causing LED component luminous is conducted to tubulose lampshade by the heat conduction path of circuit layer-flexible circuit bearing bed-thermal conductivity solid-soft heat-conducting layer, and then by this tubulose lampshade, accumulated heat is left, make this LED tubular lamp become the LED tubular lamp with great heat radiation effect.

Description

LED tubular lamp

Technical field

The utility model relates to a kind of spot, particularly relates to a kind of LED tubular lamp that a kind of substrate and fluorescent tube wall reach good fit.

Background technology

In recent years, light emitting diode (Light-Emitting Diode, LED) is applied on the lighting device of daily life widely.Refer to Fig. 1, as 1 perspective view showing a kind of LED fluorescent lamp tube of the prior art.As shown in Figure 1, LED fluorescent lamp tube 1 ' of the prior art comprising: tubulose lampshade 11 ', aluminium base 12 ', circuit layer 13 ', multiple LED component 14 ' and two end caps 15 '; Wherein, this aluminium base 12 ' is placed in this tubulose lampshade 11 ', and this circuit layer 13 ' being provided with this LED component 14 ' is placed on aluminium base 12 '.As shown in the figure, after the connection wire 151 ' that this end cap 15 ' is inner is connected to circuit board 13 ', namely can entangle the port of this tubulose lampshade 11 ' by end cap 15 ', this mode seals this tubulose lampshade 11 '.Further, end cap 15 ' outside has conducting connection terminal 152 ', in order to couple external input power.

The advantage of the LED fluorescent lamp tube 1 ' shown in Fig. 1 is that its composition structure is the simplest, and overall manufacturing cost is not high; But this LED fluorescent lamp tube 1 ' has following shortcoming.As shown in Figure 2, Fig. 2 shows the side sectional view of LED fluorescent lamp tube 1 ' in prior art, and wherein this aluminium base 12 ' is pasted to the internal face of tubulose lampshade 11 ' by viscose 16 '; But, because aluminium base 12 ' is for having certain thickness tabular cuboid, therefore aluminium base 12 ' intactly cannot attach the internal face of this tubulose lampshade 11 ', the light produced when causing LED component 14 ' luminous cannot conduct to tubulose lampshade 11 ' entirely through aluminium base 12 ', causes this LED fluorescent lamp tube 1 ' to have the major defect of poor heat radiation.

Consult Fig. 3 unceasingly, Fig. 3 shows the bottom view of LED fluorescent lamp tube 1 '.As shown in Figure 3, because aluminium base 12 ' is pasted to the internal face of tubulose lampshade 11 ' by viscose 16 ' and aluminium base 12 ' intactly cannot attach the internal face of this tubulose lampshade 11 ', therefore, can be found by the bottom view of LED fluorescent lamp tube 1 ', be positioned at this viscose 16 ' between aluminium base 12 ' and tubulose lampshade 11 ' internal face, it, because the extrusion integral shape being subject to aluminium base 12 ' and tubulose lampshade 11 ' presents the shape of similar snake, causes the perception of the bottom of this LED fluorescent lamp tube 1 ' not good.

Utility model content

Main purpose of the present utility model, is to provide a kind of LED tubular lamp, and it is using roomy soft heat-conducting layer as the basic unit that can be pasted to tubulose lampshade internal face completely, then is arranged on this soft heat-conducting layer by thermal conductivity solid by flexible circuit bearing bed; So, not only circuit layer can be formed on this flexible circuit bearing bed further, simultaneously, because roomy soft heat-conducting layer attaches the internal face of tubulose lampshade completely, the luminous energy produced when therefore causing LED component luminous is conducted to tubulose lampshade by the heat conduction path of circuit layer-flexible circuit bearing bed-thermal conductivity solid-soft heat-conducting layer, and then by this tubulose lampshade, accumulated heat is left, make this LED tubular lamp become the LED tubular lamp with great heat radiation effect.

In order to reach the above-mentioned object of the utility model, utility model embodiment provides a kind of LED tubular lamp, comprising:

Tubulose lampshade;

Soft heat-conducting layer, is attached at the internal face of this tubulose lampshade;

Flexible circuit bearing bed, is arranged on this soft heat-conducting layer by thermal conductivity solid;

Circuit layer, is formed on this flexible circuit bearing bed, and has multiple weld metal pad;

Welding resisting layer, is formed on this circuit layer, and this welding resisting layer offers multiple welding window, in order to expose the plurality of weld metal pad;

Multiple LED component, is arranged on this welding resisting layer, and is welded to each other by those welding windows and those weld metal pads;

Two end caps, are bonded to the two ends of this tubulose lampshade respectively, and reach electric connection with this circuit layer; Further, each end cap has two the first electric terminals, in order to be electrically connected external power source.

Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.

Accompanying drawing explanation

Fig. 1 shows a kind of perspective view of LED fluorescent lamp tube of the prior art;

Fig. 2 shows the side sectional view of LED fluorescent lamp tube in prior art;

Fig. 3 shows the bottom view of LED fluorescent lamp tube in prior art;

Fig. 4 shows the perspective view of a kind of LED tubular lamp that the utility model embodiment provides;

Fig. 5 shows the sectional view of a kind of LED tubular lamp that the utility model embodiment provides;

Fig. 6 shows soft heat-conducting layer, flexible circuit bearing bed, circuit layer, welding resisting layer, LED component and the end cap stereogram that the utility model embodiment provides;

Fig. 7 A shows soft heat-conducting layer, flexible circuit bearing bed, circuit layer, welding resisting layer, LED component and the end cap stereogram that the utility model embodiment provides;

Fig. 7 B shows soft heat-conducting layer, flexible circuit bearing bed, circuit layer, welding resisting layer, LED component and the end cap stereogram that the utility model embodiment provides.

Symbol description:

1 LED tubular lamp 11 tubulose lampshade

12 soft heat-conducting layer 13 flexible circuit bearing beds

13a thermal conductivity solid 14 circuit layer

141 weld metal pad 15 welding resisting layers

151 welding window 16 LED component

17 end cap 172 first electric terminals

171 second electric terminal 121 first Heat Conduction Materials

122 second Heat Conduction Materials

1 ' LED fluorescent lamp tube

11 ' tubulose lampshade 12 ' aluminium base

13 ' circuit layer 14 ' LED component

15 ' end cap 151 ' connects wire

152 ' conducting connection terminal 16 ' viscose

Detailed description of the invention

In order to a kind of LED tubular lamp that the utility model embodiment provides more clearly can be described, below will coordinate graphic, elaborate the preferred embodiment of the utility model embodiment.

Refer to Fig. 4, Fig. 4 shows the perspective view of a kind of LED tubular lamp that the utility model embodiment provides; Further, illustrating please refer to Fig. 5, Fig. 5 can the sectional view of LED tubular lamp that provides of the utility model embodiment.As shown in figs. 4 and 5, the utility model or the LED tubular lamp 1 provided comprises: tubulose lampshade 11, soft heat-conducting layer 12, flexible circuit bearing bed 13, circuit layer 14, welding resisting layer 15, multiple LED component 16 and two end caps 17; Wherein, this tubulose lampshade 11 can made by glass or plastics.

Consult Fig. 4 and Fig. 5 unceasingly, and show please refer to Fig. 6, Fig. 6 soft heat-conducting layer 12, flexible circuit bearing bed 13, circuit layer 14, welding resisting layer 15, LED component 16 and end cap 17 stereogram that the utility model embodiment provides.As shown in the figure, the soft heat-conducting layer 12 being attached at the internal face of this tubular cover lamp 11 is made up of the first Heat Conduction Material 121 and the second Heat Conduction Material 122; Wherein, the first Heat Conduction Material 121 adopts comparatively roomy heat conduction adhesive tape, the second Heat Conduction Material 122 for providing the sheet metal of equal thermal effect, such as: aluminium foil, aluminium alloy paillon foil, copper foil or copper alloy paillon foil.

Further, flexible circuit bearing bed 13 is arranged on this soft heat-conducting layer 12 by thermal conductivity solid 13a.Must illustrate, because flexible circuit bearing bed 13 is the substrate of this circuit layer 14, therefore must made by the plastic material of high-fire resistance and low thermal coefficient of expansion, such as: polyimides (Polyimide, PI).Especially, welding resisting layer 15 is formed on this circuit layer 14 by the utility model embodiment, and this welding resisting layer 15 offers multiple welding window 151 to expose multiple weld metal pads 141 of circuit layer 14.So, the plurality of LED component 16 be arranged at further on welding resisting layer 15 just can be welded window 151 by those and is welded to each other with those weld metal pads 141.

In this, what must remark additionally is, the circuit layer 14 that the utility model embodiment adopts is made by metallic copper, and, in the application of reality, this circuit layer 14 also can be combined into or be made in advance flexible copper foil substrate (Flexible Copper CladLaminate, FCCL) with this flexible circuit bearing bed 13; Thus, just can reduce and simplify the manufacture assembly program of this LED tubular lamp 1.In addition, although the substrate of the utility model embodiment adopts comparatively roomy soft heat-conducting layer 12, but, because circuit layer 14 (metallic copper) is located on the flexible circuit bearing bed 13 above this soft heat-conducting layer 12 by the mode of screen painting, therefore not limiting circuit layer 14 must be wide with soft heat-conducting layer 12; If consider overall manufacturing cost, circuit layer 14 to be narrower than this soft heat-conducting layer 12.Moreover the wall due to tubulose lampshade 11 is cambered surface, therefore the utility model embodiment inserts thermal conductivity solid 13a in flexible circuit bearing bed 13 and soft heat-conducting layer 12; Thus, this thermal conductivity solid 13a can cause multiple dimpling platform on this flexible circuit bearing bed 13, and the plurality of dimpling platform just corresponds to the plurality of LED component 16 on this circuit layer 14, this mode makes the plurality of LED component 16 can be soldered in a relatively sedate manner on this circuit layer 14.

Consult Fig. 3 to Fig. 6 unceasingly, and please refer to Fig. 7 A and Fig. 7 B, Fig. 7 A and Fig. 7 B show soft heat-conducting layer 12 that the utility model embodiment provides, flexible circuit bearing bed 13, circuit layer 14, welding resisting layer 15, LED component 16, with end cap 17 stereogram.In the utility model embodiment, these two end caps 17 are bonded to the two ends of tubulose lampshade 11 respectively, and reach electric connection with this circuit layer 14; Further, each end cap 17 has two the first electric terminals 172 being electrically connected external power source.Relative to this first electric terminal 172, this end cap 17 is electrically connected to this circuit layer 14 with two of its inside the second electric terminals 171.So, after the alternating current that external power source just can provide by the LED power module (non-icon) in end cap 17 carries out Power convert, there is provided direct current to circuit layer 14 by this second electric terminal 171 again, and then drive those LED component 16 luminous.

In the utility model embodiment, this second electric terminal 171 makes the LED power module in this end cap 17 and this circuit layer 14 reach electric connection.Wherein, the wire of this second electric terminal 171 such as shown in Fig. 6; Or this second electric terminal 171 also can be such as the socket shown in Fig. 7 A; Or this second electric terminal 171 also can be such as the flexible printed circuit shown in Fig. 7 B.In addition, the enforcement aspect that this second electric terminal 171 is possible also can be conducting strip or flat cable.

So, above-mentioned complete and the LED tubular lamp that the utility model embodiment provides clearly is described, and, via above-mentioned, can learn that the utility model embodiment has following advantage:

Be different from LED fluorescent lamp tube 1 ' of the prior art and adopt aluminium base 12 ' bearer circuit layer 13 ' (as shown in Figure 1 to Figure 3), the utility model embodiment especially using roomy soft heat-conducting layer 12 as the basic unit that can be pasted to tubulose lampshade 11 internal face completely, then by thermal conductivity solid 13a, flexible circuit bearing bed 13 is arranged on this soft heat-conducting layer 12; So, not only circuit layer 14 can be formed on this flexible circuit bearing bed 13 further, simultaneously, because roomy soft heat-conducting layer 12 attaches the internal face of tubulose lampshade 11 completely, the luminous energy produced when therefore causing LED component 16 luminous is conducted to tubulose lampshade 11 by the heat conduction path of the soft heat-conducting layer 12 of circuit layer 14-flexible circuit bearing bed 13-thermal conductivity solid 13a-, and then by this tubulose lampshade 11, accumulated heat is left, make this LED tubular lamp 1 become the LED tubular lamp with great heat radiation effect.

Must in addition it is emphasised that, above-mentioned detailed description illustrates for the utility model possible embodiments, only this embodiment be not used to limit the scope of the claims of the present utility model, allly do not depart from the equivalence of doing of the utility model skill spirit and implement or change, all should be contained in the scope of the claims of this case.

Claims

1. a LED tubular lamp, is characterized in that, comprising:

Tubulose lampshade;

2. LED tubular lamp according to claim 1, is characterized in that, this flexible circuit bearing bed is the plastic base with high-fire resistance and low thermal coefficient of expansion.

3. LED tubular lamp according to claim 1, is characterized in that, this soft heat-conducting layer comprises the first Heat Conduction Material, and this first Heat Conduction Material is heat conduction adhesive tape.

4. LED tubular lamp according to claim 1, is characterized in that, this end cap is electrically connected to this circuit layer with the second electric terminal of its inside.

5. LED tubular lamp according to claim 1, is characterized in that, this tubulose lampshade is made by glass or plastics.

6. LED tubular lamp according to claim 2, is characterized in that, this circuit layer is made by metallic copper, and this circuit layer and this flexible circuit bearing bed can be combined into flexible copper foil substrate.

7. LED tubular lamp according to claim 3, is characterized in that, this soft heat-conducting layer also comprises the second Heat Conduction Material, and this second Heat Conduction Material can be following any one: aluminium foil, aluminium alloy paillon foil, copper foil or copper alloy paillon foil.

8. LED tubular lamp according to claim 4, is characterized in that, this second electric terminal of this end cap reaches electric connection by any one electrical connection component following and this circuit layer: socket, flat cable, flexible printed circuit, wire or conducting strip.