WO2010060354A1 - Tube-shaped led lamp capable of easy replacement - Google Patents

Abstract

A tube-shaped LED lamp capable of easy replacement includes a body (2), a LED light source (3) provided in the body, and lamp heads (1) provided at two ends of the body and connected to the LED light source. The LED light source is provided on a PCB (32). Two ends of the PCB are the power source input ends (32a) electrically connected to the LED light source. The lamp heads are clamped to the power source input ends of the PCB to form electrical connection.

Description

 Description An easy-to-replace tubular LED light

 Technical field

 [1] The invention relates to a lamp, in particular to a tubular LED lamp, belonging to the field of lighting appliances.

 Background technique

 [2] With the increasing energy crisis, the use of LEDs in general ambient lighting is becoming more and more important. With the unremitting efforts of many countries in the world, white LED has made great progress, and it has set off a wave of LED application in the field of lighting, especially in decorative lighting and local lighting in some high-end places. Under the impetus of global energy conservation and emission reduction policies, a new round of energy-saving renovation projects for environmental lighting has also begun. In general ambient lighting, since double-ended fluorescent lamps have been widely used, if all new LED lamps are replaced, huge cost will be incurred. The best way is to not replace the lamps and only change the light source, but in the prior art, The luminaires are integral or interconnected by wires. For example, Chinese patent ZL200 620111826.6 discloses an LED fluorescent lamp, which is composed of a glass tube, a lamp tube composed of a lamp holder and a pin at both ends, a printed circuit board with an electronic circuit built in the glass tube, and a three-welded printed circuit board. LED light-emitting diodes, printed circuit boards and leads are electrically connected. Although the LED fluorescent lamp can use the original glass tube and the lamp cap, it still needs a wire to realize the connection between the printed circuit board and the lamp cap, thereby inconvenience in the production, use and maintenance of the LED fluorescent lamp. Disclosure of invention

 technical problem

 [3] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a tubular LED lamp which uses LED as a light source and is easy to replace and disassemble.

 Technical solution

[4] The present invention is realized by the following technical solution: a tubular LED lamp that is easy to replace, a tubular LED lamp that is easy to replace, includes a lamp body, an LED light source disposed in the lamp body, and a lamp body disposed at the lamp body a lamp base connected to the LED light source at both ends; the LED light source is disposed on the PCB board, and the two ends of the PCB board are power input ends electrically connected with the LED light source, and the power input ends of the lamp head and the PCB board are mutually connected to form Electrical connection. [5] The lamp cap comprises a cap-shaped casing matched with the lamp body, the bottom of the cap-shaped casing is provided with a pin, and the other end of the pin is connected with a conductive clip disposed in the cap-shaped casing, and the conductive clip clamps the PCB board Power input.

 [6] The conductive clip includes a substrate connected to the pin, and two sets of legs disposed on the substrate, and a card slot of the power input end of the PCB board is formed between the two sets of legs, and the LED lamp is assembled. The PCB board is installed in the card slot.

 [7] Each set of feet includes one or more feet, and the two sets of feet are opposite or offset from each other.

 [8] As a further improvement of the present invention, the lid-shaped casing comprises a hollow, detachably connected sleeve and a sleeve cover, and a base coaxially disposed between the sleeve and the sleeve cover; The base forms the bottom of the cover-like housing, and the pins are fixed to the base.

[9] The sleeve includes a first end coupled to the lamp body and a second end mated with the base, and the external portion of the second end is externally threaded and internally threaded with the internal thread disposed in the sleeve cover; The bottom of the sleeve cover is provided with a step, and the sleeve is connected with the sleeve cover, and the step end surface of the sleeve cover presses the base.

 [10] A sealing 圏 is arranged between the sleeve and the base to prevent moisture and mist from entering the inside of the tube.

 [11] The front end surface of the base is provided with a positioning ring that cooperates with the inner diameter of the second end of the sleeve, the positioning ring is provided with a notch in the circumferential direction, and the inner surface of the second end of the sleeve is provided with a positioning block corresponding to the notch. When the positioning ring of the base is inserted into the inner side of the second end of the sleeve, the positioning block and the notch on the positioning ring are mutually locked.

 [12] As a further improvement of the present invention, the inner bottom of the cap-shaped casing is provided with a support baffle supporting the pinch of the conductive clip.

 [13] The side wall of the support baffle is provided with a groove corresponding to the width of the pinch at a position corresponding to the pin.

 Beneficial effect

 [14] The advantages of the present invention over the prior art are:

 [15] 1. The prior art lamp head and the LED light source are connected to each other through wires, and the lamp cap of the present invention and the light source are directly clamped to form an electrical connection, thereby making the installation, replacement, maintenance and replacement of the LED fluorescent lamp with an LED light source. Ordinary fluorescent lamps have become very convenient.

 [16] 2. The lamp cap is composed of a plurality of detachable parts. When the LED lamp needs to be repaired or replaced due to partial damage, simply unscrew the cap cover as part of the lamp cap, and then the lamp cap can be removed and the lamp tube can be taken out.

 PCB board, easy to repair and replace.

[17] 3, because a single low-power high-brightness patch LED is small in size, equivalent to a point source, the power is also very Small, no need to solve the heat dissipation problem, the light distribution is very uniform and the brightness is high by using dense dot matrix arrangement. It achieves low cost, low energy consumption, meets general lighting requirements, and is more energy efficient than double-ended fluorescent lamps.

 [18] 4, can share the standard size of double-ended fluorescent lamps, just replace the light source and rectifier, you can directly use the existing double-end fluorescent lamps, in the energy-saving renovation project can maximize cost savings. DRAWINGS

 1 is a perspective view of a tubular LED lamp according to an embodiment of the present invention;

[20] Figure 2 is an exploded view of Figure 1;

Figure 3 is a partial cross-sectional view of Figure 1;

[22] Figure 4 is a perspective view of the lamp cap;

[23] Figure 5 is an exploded view of the lamp cap;

 [24] FIG. 6 is a perspective view of a tubular LED lamp for easy replacement according to another aspect of the present invention;

Figure 7 is an exploded view of the lamp cap in the second embodiment of the present invention;

[26] Figure 8 is an exploded view of the LED lamp using the lamp cap of Figure 7;

 [27] Figure 9 is a perspective view (partial) of the LED lamp of Figure 7.

 Embodiments of the invention

 [28] The tubular LED lamp of the present invention which is easy to replace is further described below with reference to the accompanying drawings and specific embodiments: [29] Embodiment 1:

 As shown in Figs. 1 to 5, the lamp of the present invention comprises two lamp holders 1, a lamp body 2, a group of LED light sources 3, and a light source holder 4 and the like. The LED light source 3 is disposed on the PCB board 32. The two ends of the PCB board 32 are power input terminals 32a electrically connected to the LED light source 3. The lamp head 1 and the power input end 32a of the PCB board 32 are electrically connected to each other to form an electrical connection.

As shown in Figures 4 and 5, the base 1 is designed according to the G13 double-pin base (or G5/Fa6 base), and includes a cover-like housing 11 that cooperates with the lamp body 2 and can be made of a PC plastic material. The bottom of the cover case 11 is provided with a copper pin 12, and the other end of the pin 12 is connected to a copper conductive clip 13 disposed in the cover case 11, and the conductive clip 13 clamps the power input end 32a of the PCB 32. . The conductive clip 13 includes a substrate 13a riveted to the pins 12, and two sets of the legs 13b disposed on the substrate 13a. The two sets of the legs 13b form a card slot for the power input 32a of the P CB board 32. When the LED lamp is assembled, the PCB board 32 is snapped into the card slot. As shown in Fig. 5, the two sets of the legs 13b respectively include one of the opposite sides. Of course, the two sets of clamping legs may also be one of the clamping legs including two clamping legs, and the other set of clamping legs only includes one clamping leg, and the three clamping legs are mutually staggered and arranged in a shape of a figure. The substrate 13a and each set of the legs 13b are formed by stamping and bending.

 [32] As shown in Fig. 2, the lamp body 2 is a transparent or translucent straight pipe, and the lamp body 2 is provided with a long strip bracket 4, and both sides of the PCB board 32 are fitted on the bracket 4. The bracket 4 is an extruded plastic profile. As a variation of the present invention, the base 1 may be a G5 base or a Fa6 base or the above three types of lamps (as shown in FIG. 6) for increasing the step; the lamp body 2 may be a circular shape, a square tube, an elliptical tube, or the like. ;

 The LED light source 3 can be a pin LED or a high power LED.

 [33] In addition, in order to ensure that the conductive clip 13 is not subjected to collision deformation, and electric shock prevention, etc., the inner bottom portion of the lid-shaped casing 11 of the base 1 is provided with a support shutter l la for supporting the pin 13b of the conductive clip 13. A groove l lb corresponding to the width of the leg 13b is provided on the side wall of the support baffle 11a at a position corresponding to the leg 13b. When the lamp cap 1 and the PCB board 32 are engaged with each other, the pin 13b can be elastically deformed along the groove l ib so that the PCB board can be smoothly caught in the conductive clip 13.

 [34] As shown in Fig. 2, the LED light source 3 is composed of a plurality of low-power high-brightness patch LEDs 31 arranged in dot matrix. The strip-shaped LED strip formed on the PCB board 32 is soldered by a chip process, and the PCB board is inserted in the card slot of the flame-retardant ABS bracket 4, and the bracket 4 functions as a rigid support to ensure that the LED light source 3 is bent. As shown in FIG. 3, the LED light source 3 is placed in the lamp body 2 (the material is transparent glass or transparent plastic, and the length of the lamp body is designed according to the length dimension of the double-end fluorescent lamp), and the two lamp caps 1 are encapsulated in the lamp body 2 At the end, the conductive clips 13 of the lamp cap 1 respectively clamp the power input ends of the PCB board to form a lamp similar to the double-ended fluorescent lamp. Therefore, it is very easy and quick to replace the ordinary fluorescent lamp with an LED lamp.

 [35] Example 2:

[36] The difference between the second embodiment and the first embodiment is mainly that the structure of the cover shell 11 of the lamp cap 1 is different. As shown in FIGS. 7 to 9, the cap-shaped housing 11 of the cap 1 in this embodiment is not integral, but is mainly composed of a coaxially disposed sleeve 116, a sleeve cover 111 and a base 113. 113 forms the bottom of the lid-shaped casing 11, and the pins 12 are fixed to the base 113. The sleeve 116 and the sleeve cover 111 are both hollow housings. The sleeve 116 includes a first end coupled to the outer diameter of the lamp body 1 and a second end mated with the base 113. The outer portion of the second end is provided with an external thread 116a and an internal thread 111a provided in the sleeve cover 111. Threaded to each other; bottom of sleeve cover 111 A step 111b is provided. When the sleeve 116 and the sleeve cover 111 are screwed together, the end surface of the step 11 lb of the sleeve cover 111 is pressed against the base 113 so that the three are connected together. In addition, a positioning ring 113a is formed on the front end surface of the base 113 to match the inner diameter of the second end of the sleeve 116. The positioning ring 113a is provided with a notch 113b in the circumferential direction, and the inner surface of the second end of the sleeve 116 is provided corresponding to the notch 113b. The positioning block 116b, when the positioning ring 113a of the base 113 is inserted into the inner side of the second end of the sleeve 116, the positioning block 116b and the notch 1 13b on the positioning ring 113a are locked with each other, thereby ensuring that the base 113 does not rotate freely. The same also ensures the reliability of electrical connection between the pins 12 and the conductive clips 13 and the PCB board 32 that are connected to the base 113.

 In addition, a sealing jaw 5 is disposed between the sleeve 116 and the base 113, and the sealing jaw 5 is placed outside the front end of the base 113, thereby preventing moisture and mist from entering the inside of the lamp body 2, thereby functioning as a waterproof and anti-fog function. .

 Industrial applicability

 [38]

Claims

Claim An easy-to-replace tubular LED lamp, comprising a lamp body, an LED light source disposed in the lamp body, and a lamp cap disposed at the two ends of the lamp body and connected to the LED light source; wherein: the LED light source is disposed on the PCB board, Both ends of the PCB board are power input ends electrically connected with the LED light source, and the power input ends of the lamp head and the PCB board are mutually connected to form an electrical connection. The tubular LED lamp for easy replacement according to claim 1, wherein: the lamp cap comprises a cap-shaped casing that cooperates with the lamp body, the bottom of the cap-shaped casing is provided with a pin, and the other end of the pin is disposed at The conductive clips in the cover case are connected to each other, and the conductive clips clamp the power input end of the PCB board. The easily replaceable tubular LED lamp according to claim 2, wherein: the conductive clip comprises a substrate interconnected with the pins, and two sets of legs disposed on the substrate, and a card is formed between the two sets of legs The card slot of the power input end of the PCB board is assembled, and the LED board is assembled in the card slot. The easily replaceable tubular LED lamp of claim 3, wherein: each set of clips includes one or more clips, and the two sets of clips are opposite or offset from each other. The easily replaceable tubular LED lamp according to any one of claims 2 to 4, wherein: the cover-shaped housing comprises a hollow, detachably connected sleeve and a sleeve cover, and is coaxially disposed a base between the sleeve and the sleeve cover; the base forms a bottom of the cover-shaped housing, and the pins are fixed to the base. The tubular LED lamp of claim 5, wherein: the sleeve comprises a first end coupled to the lamp body and a second end mating with the base, the outer portion of the second end being provided The external thread is screwed to the internal thread provided in the sleeve cover; the bottom of the sleeve cover is provided with a step, and the sleeve is connected with the sleeve cover, and the step end surface of the sleeve cover presses the base. The easily replaceable tubular LED lamp according to claim 6, wherein: a sealing jaw is disposed between the sleeve and the base. The tubular LED lamp for easy replacement according to claim 6, wherein: the front end surface of the base is provided with a positioning ring matched with the inner diameter of the second end of the sleeve, and the circumference of the positioning ring Providing a notch, the inner surface of the second end of the sleeve is provided with a positioning block corresponding to the notch, and when the positioning ring of the base is inserted into the inner side of the second end of the sleeve, the positioning block and the notch on the positioning ring are mutually stuck set.  [9] The replaceable tubular LED lamp according to claim 5, wherein: the inner bottom of the cover case is provided with a support baffle supporting the pinch of the conductive clip.  [10] The easily replaceable tubular LED lamp according to claim 9, wherein: the side wall of the supporting baffle is provided with a groove corresponding to the width of the leg at a position corresponding to the leg.