CN101363607A - LED bulb - Google Patents

Abstract

The invention discloses an LED light bulb with adjustable light emitting direction and rotatable head, which comprises a lamp base (1), an insulating bottom case (2), a driving power supply (3), an insulating cover (4), a central axis plate (5), The heat dissipation neck (6), the heat dissipation hemisphere (7) connected with the LED chip (12), the light transmission hemisphere (15), the insulating cover (4) is fixedly connected with the insulating bottom case (2) and the driving power supply (3) is arranged on Inside, the bottom of the heat dissipation neck (6) is fixedly connected with the insulating bottom case (2), the central axis plate (5) is fixedly connected with the heat dissipation neck (6), the central axis plate (5) is provided with a vertical shaft (51), and the heat dissipation hemisphere ( 7) There is a guide groove (71) passing through the pole and extending along the direction of the latitude line. After the vertical shaft (51) passes through the guide groove (71), the gasket (8) and the spring (9) are sequentially sleeved and passed through the limit nut in turn. (10), the locking nut (11) positions and connects the cooling hemisphere (7) with the cooling neck (6), and the cooling hemisphere (7) passes through the guide groove (71) with respect to the cooling neck (6) with the vertical shaft (51) as the The guide shaft rotates.

Description

led light bulb

technical field

The invention relates to an LED light bulb.

Background technique

Traditional light bulbs are incandescent light bulbs, which have low illuminance, dim light, and no energy saving. After incandescent light bulbs, fluorescent light bulbs appeared. Although they are energy-saving and have brighter light, they are not environmentally friendly due to the large amount of fluorescent powder used. At present, more energy-saving and environmentally friendly LED light sources have emerged, and LED bulbs have been produced. The existing LED bulbs are similar in structure to traditional incandescent bulbs. Adjust as needed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a rotatable LED light bulb, the light emitting direction of which can be adjusted.

The technical solution adopted in the present invention is: the present invention includes a lamp cap, an insulating bottom case, a driving power supply, and an LED chip, the insulating bottom case is fixedly connected to the lamp cap, the driving power source is located inside the insulating bottom case, The driving power supply is electrically connected to the lamp holder and the LED chip respectively, and the LED light bulb also includes an insulating cover, a central axis plate, a cooling neck, a cooling hemisphere, and a light-transmitting hemisphere, and the insulating cover is connected to the insulating bottom. The shells are fixedly connected and the driving power is arranged in the internal space surrounded by the two, the bottom of the side wall of the heat dissipation neck is fixedly connected with the insulating bottom case, the central axis plate is connected to the bottom of the heat dissipation neck The inner side walls are fixedly connected, the center of the central shaft plate is provided with a vertical shaft, and the heat dissipation hemisphere is provided with a guide groove passing through the pole and extending along the weft direction, and the vertical shaft passes through the guide groove and is sequentially socketed with gaskets , the spring and sequentially through the limit nut and the lock nut to position and connect the heat dissipation hemisphere and the heat dissipation neck, and the heat dissipation hemisphere is relative to the heat dissipation neck through the guide slot and the vertical shaft as the guide shaft to rotate The LED chip is fixedly connected to the heat dissipation hemisphere, and the light-transmitting hemisphere is fixedly connected to the heat dissipation hemisphere and surrounds the LED chip inside.

Both the insulating cover and the vertical shaft of the central axis plate are provided with through holes, and the output lines of the driving power supply pass through the through holes in turn and are electrically connected to the LED chips.

The heat dissipation hemisphere is provided with several heat dissipation holes.

The heat dissipation hole is groove-shaped and parallel to the guide groove.

The outer wall of the heat dissipation neck is provided with a plurality of ribs and grooves spaced apart from each other.

The LED chip is fixedly connected to the heat dissipation hemisphere by screws, and the contact between the LED chip and the heat dissipation hemisphere is coated with heat dissipation paste.

The central axis plate is fixedly connected to the inner side wall of the heat dissipation neck through a tight fit.

The insulating bottom shell and the lamp cap are connected by screw thread and then fixed by riveting, the insulating cover is fastened and connected with the insulating bottom shell or connected by thread, and the bottom of the inner side wall of the heat dissipation neck is sleeved on the The outer wall of the insulating bottom case is fixed by bonding, and the light-transmitting hemisphere is firmly connected with the heat-dissipating hemisphere.

The lamp holder is a screw lamp holder or a buckle lamp holder.

The heat dissipation neck and the heat dissipation hemisphere are made of aluminum, copper or zinc alloy.

The beneficial effects of the present invention are: since the bottom of the side wall of the heat dissipation neck in the present invention is fixedly connected with the insulating bottom case, the central axis plate is fixedly connected with the inner side wall of the heat dissipation neck, and the central axis plate There is a vertical shaft in the center of the heat dissipation hemisphere, and a guide groove passing through the pole and extending along the latitude direction is provided on the heat dissipation hemisphere. After passing through the guide groove, the vertical shaft is sequentially connected with gaskets, springs and sequentially passed through limit nuts, locking The nut positions and connects the heat dissipation hemisphere with the heat dissipation neck, the heat dissipation hemisphere is rotated relative to the heat dissipation neck through the guide groove and the vertical shaft as a guide shaft, and the LED chip is fixedly connected to the heat dissipation neck. On the hemisphere, the light-transmitting hemisphere is fixedly connected to the heat-dissipating hemisphere and surrounds the LED chip inside. Together with the heat dissipation hemisphere and the LED chip, it rotates relative to the heat dissipation neck and the lamp cap, so that the light emitted through the light-transmitting hemisphere is turned, that is, when the lamp holder and the lamp cap are fixed, the light is emitted The direction can be adjusted, which is especially suitable for lamps such as desk lamps, so the invention can turn the head, and the direction of light output can be adjusted;

Since the heat dissipation hemisphere of the present invention is provided with a number of heat dissipation holes, the LED chip is fixedly connected to the heat dissipation hemisphere by screws, the contact between the LED chip and the heat dissipation hemisphere is coated with heat dissipation paste, and the heat dissipation neck The outer wall of the LED is provided with a number of ribs and grooves that are spaced apart from each other. During operation, the heat generated by the LED chip is conducted to the heat dissipation hemisphere and the heat dissipation neck and dissipated. The heat dissipation holes increase the air circulation. The channel, the rib and the groove increase the heat dissipation area, so the heat dissipation effect of the present invention is good;

Since the heat dissipation holes in the present invention are groove-shaped and parallel to the guide grooves, the overall appearance of the heat dissipation holes and the guide grooves is unified, not only have corresponding functions, but also increase the aesthetics, so the appearance of the present invention is beautiful coordination.

Description of drawings

Fig. 1 is a schematic diagram of an explosion structure of the present invention;

Fig. 2 is a side structure schematic diagram of the present invention;

Fig. 3 is the sectional structure schematic diagram of A-A shown in Fig. 2;

Fig. 4 is a three-dimensional structural schematic view of the present invention in a turret state.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention includes a lamp holder 1, an insulating bottom shell 2, a driving power supply 3, an insulating cover 4, a central axis plate 5, a heat dissipation neck 6, a heat dissipation hemisphere 7, and a light-transmitting hemisphere 15. LED chip 12, the lamp cap 1 is a screw lamp cap, of course, it can also be a buckle lamp cap, the insulating bottom shell 2 and the lamp cap 1 are connected by threads and then fixed by riveting, and the driving power supply 3 is located at Inside the insulating bottom case 2, the driving power supply 3 is electrically connected to the lamp holder 1 and the LED chip 12 respectively, and the insulating cover 4 is fastened and fixedly connected to the insulating bottom case 2 and the The driving power supply 3 is arranged in the internal space surrounded by the two, of course, the insulating cover 4 and the insulating bottom case 2 can also be connected by threads, and the bottom of the inner side wall of the heat dissipation neck 6 is sleeved on the insulating On the outer wall of the bottom case 2 and fixed by bonding, the outer wall of the heat dissipation neck 6 is provided with a number of ribs and grooves spaced apart from each other to increase the heat dissipation area. The central axis plate 5 and the heat dissipation neck The inner side wall of 6 is fixedly connected by tight fit, the center of the central axis plate 5 is provided with a vertical shaft 51, and the insulating cover 4 and the vertical shaft 51 of the central axis plate 5 are all provided with through holes. The output line of the driving power supply 3 passes through the through hole in turn and is electrically connected to the LED chip 12. The heat dissipation hemisphere 7 is provided with a guide groove 71 passing through the pole and extending along the weft direction, and the vertical shaft 51 passes through the The guide groove 71 is sequentially socketed with the gasket 8 and the spring 9, and the heat dissipation hemisphere 7 and the heat dissipation neck 6 are positioned and connected through the stop nut 10 and the lock nut 11 in sequence. The heat dissipation hemisphere 7 is relatively The heat dissipation neck 6 rotates through the guide groove 71 with the vertical shaft 51 as a guide shaft, the LED chip 12 is fixedly connected to the heat dissipation hemisphere 7 by a screw 13, and the LED chip 12 and the heat dissipation hemisphere 7 is coated with heat dissipating paste, and the heat generated by the LED chip 12 is conducted to the heat dissipating hemisphere 7 and the heat dissipating neck 6 and dissipated during operation. The transparent hemisphere 15 and the heat dissipating hemisphere 7 The heat dissipation hemisphere 7 is provided with a plurality of heat dissipation holes 72. The heat dissipation holes 72 are groove-shaped and parallel to the guide groove 71. The heat dissipation holes 72 and the guide groove 71 have the same overall appearance, not only have corresponding functions, but also increase the aesthetics, and the appearance is beautiful and coordinated. The heat dissipation neck 6 and the heat dissipation hemisphere 7 are all made of aluminum, and of course copper can also be used. Metal or zinc alloy and other metal or alloy manufacturing.

When the heat dissipation hemisphere 7 of the present invention rotates through the guide groove 71 with the vertical shaft 51 as the guide axis, the light-transmitting hemisphere 15 and the heat dissipation hemisphere 7 together with the LED chip 12 are relatively to the heat dissipation neck 6 and the lamp holder 1 to rotate, so that the light emitted by the transparent hemisphere 15 is turned, that is, when the lamp holder and the lamp holder are fixed, the light output direction can be adjusted, and for table lamps and other lamps that may need to adjust the light output direction Especially applicable.

The invention can be widely used in the field of lamps.

Claims (10)

1. LED bulb, comprise lamp holder (1), insulation drain pan (2), driving power (3), led chip (12), described insulation drain pan (2) is fixedly connected with described lamp holder (1), described driving power (3) is positioned at the inside of described insulation drain pan (2), described driving power (3) respectively with described lamp holder (1), described led chip (12) is electrically connected, it is characterized in that: described LED bulb also comprises insulating lid (4), center axillare (5), heat radiation neck (6), heat radiation hemisphere (7), photic hemisphere (15), described insulating lid (4) is fixedly connected with described insulation drain pan (2) and described driving power (3) is arranged in the two inner space that surrounds, the sidewall bottom of described heat radiation neck (6) is fixedly connected with described insulation drain pan (2), described center axillare (5) is fixedly connected with the madial wall of described heat radiation neck (6), the center of described center axillare (5) is provided with vertical shaft (51), the guide groove (71) that described heat radiation hemisphere (7) is provided with the process limit and extends along weft direction, described vertical shaft (51) passes behind the described guide groove (71) socket pad (8) successively, spring (9) also passes through stop nut (10) successively, locking nut (11) positions described heat radiation hemisphere (7) and is connected with described heat radiation neck (6), described heat radiation hemisphere (7) is that the axis of guide rotate by described guide groove (71) with described vertical shaft (51) with respect to described heat radiation neck (6), described led chip (12) is fixedly connected on the described heat radiation hemisphere (7), and described photic hemisphere (15) is fixedly connected with described heat radiation hemisphere (7) and described led chip (12) is surrounded on inside.

2. LED bulb according to claim 1, it is characterized in that: be equipped with through hole on the described vertical shaft (51) of described insulating lid (4), described center axillare (5), the output line of described driving power (3) is electrically connected with described led chip (12) after passing described through hole successively.

3. LED bulb according to claim 1 is characterized in that: described heat radiation hemisphere (7) is provided with some louvres (72).

4. LED bulb according to claim 3 is characterized in that: described louvre (72) is flute profile and parallels with described guide groove (71).

5. LED bulb according to claim 1 is characterized in that: the lateral wall of described heat radiation neck (6) is provided with some apart from one another by the fin and the groove that are provided with.

6. LED bulb according to claim 1 is characterized in that: described led chip (12) is fixedly connected on the described heat radiation hemisphere (7) by screw (13), and described led chip (12) scribbles thermal grease with the contact position of described heat radiation hemisphere (7).

7. LED bulb according to claim 1 is characterized in that: described center axillare (5) is fixedly connected by tight fit with the madial wall of described heat radiation neck (6).

8. LED bulb according to claim 1, it is characterized in that: described insulation drain pan (2) with pass through riveted and fixed again after described lamp holder (1) is connected by screw thread, described insulating lid (4) and described insulation drain pan (2) are interlocked and are connected or are connected by screw thread, the madial wall of described heat radiation neck (6) bottom is socketed on the outer wall of described insulation drain pan (2) and is fixing by bonding, and described photic hemisphere (15) fixes connection mutually with described heat radiation hemisphere (7).

9. LED bulb according to claim 1 is characterized in that: described lamp holder (1) is screw socket or buckle lamp holder.

10. LED bulb according to claim 1 is characterized in that: described heat radiation neck (6), described heat radiation hemisphere (7) adopt aluminium, copper material or kirsite manufacturing.

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