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Illuminating device

A technology for lighting devices and light-emitting parts, which is applied to lighting devices, lighting device parts, lighting and heating equipment, etc., can solve problems such as off-line, affecting normal lighting use, breakage, etc., and achieves low fatigue strength, increased strength and Torsional fatigue fracture resistance and effect of protecting joints

Active Publication Date: 2019-06-07
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, when the lighting direction of the bulb is repeatedly twisted and adjusted, there is a gap between the wires connected to the bulb contacts in the lamp base and other electronic devices and wires in the bulb due to the relative rotational movement of the bulb relative to the lamp cap. The connection points between them will be broken or off-line under the action of stress due to repeated torsion, which will affect the normal lighting use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0040] The first embodiment of the present invention provides a lighting device with a rotatable light-emitting part 1, see figure 1 , figure 2 and image 3 , which includes:

[0041] The rotatable light-emitting part 1, the circuit board 2 that provides driving for the rotatable light-emitting part 1, and the lamp cap 3 connected to the rotatable light-emitting part 1 and accommodates the circuit board 2, the rotatable light-emitting part 1 can rotate relative to the lamp cap 3;

[0042] A wire 4 is accommodated in the lamp cap 3, one end of the wire 4 is connected to the contact 3a of the lamp cap 3, and the other end is connected to the circuit board 2 through the connecting portion 5;

[0043] A heat-shrinkable sleeve 6 is provided to tightly cover the connecting portion 5 .

[0044] In the lighting device provided by the present invention, the rotatable light-emitting part 1 and the lamp head 3 can be rotated relative to each other, which can meet various requirements...

Embodiment approach 2

[0063] The second embodiment of the present invention provides an illuminating device with a rotatable light-emitting part 1 , and this embodiment is a further improvement on the first embodiment. Parts that are not specifically described are the same as those in the first embodiment of the present invention, and will not be repeated here.

[0064] Compared with the first embodiment, the main improvement is that, in the second embodiment of the present invention, see Figure 4 , Figure 5 and Figure 6 As shown, the lighting device with the lamp holder 3 includes: the connecting part 5 is connected with the circuit board 2 through the electronic device 7;

[0065] The heat-shrinkable sleeve 6 also includes a first heat-shrinkable sleeve 6a and a second heat-shrinkable sleeve 6b, the first heat-shrinkable sleeve 6a tightly covers the connecting portion 5, and the second heat-shrinkable sleeve 6b tightly covers the first heat-shrinkable sleeve 6b. At least part of the heat sh...

Embodiment approach 3

[0081] The third embodiment of the present invention provides an illuminating device with a rotatable light-emitting part 1 , and this embodiment is a further improvement on any one of the first embodiment or the second embodiment. The main improvement is that, in the third embodiment of the present invention, see Figure 7 As shown, the wire 4 is partially helical in the lamp cap 3 , and has a helical wire part 4 a near one end of the lamp cap 3 and a helical wire part 4 b near the connecting part 5 .

[0082] Leaving a certain margin by extending the length of the wire 4 is a measure to reduce the influence of twisting on the connection part 5, but during the twisting movement of the wire 4, the excessive margin may touch or become entangled to other electrical components8. Therefore, in this embodiment, the lead wire 4 is arranged in a spiral shape to limit and fix these margins within a certain range.

[0083] Specifically, one helical wire part 4a is arranged at one end...

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Abstract

The invention relates to the technical field of illuminating equipment, and discloses an illuminating device with a rotatable luminous part. The illuminating device comprises the rotatable luminous part, a circuit board for driving the rotatable luminous part, and a lamp cap which is connected with the rotatable luminous part and stores the circuit board. The rotatable luminous part can rotate relative to the lamp cap, a wire is contained in the lamp cap, one end of the wire is connected to a contact of the lamp cap, the wire is communicated with the circuit board through a connecting part, and a tightly coated heat shrinkage sleeve is further arranged on the connecting part. The lamp cap and the rotatable luminous part are rotationally connected together, the main luminous direction of the rotatable luminous part can be adjusted, light is selectively irradiated, and then different illuminating requirements are met.

Description

technical field [0001] The invention relates to the field of lighting equipment, in particular to a lighting device with a rotatable light-emitting part. Background technique [0002] In lighting installations, light bulbs are very common and are still widely used in today's life. Generally, the light bulb includes two parts, a lamp cap and a light emitting part, and the lamp cap and the light emitting part are fixedly connected. [0003] In actual use, with the increase of diversified requirements such as usage scenarios and installation conditions, there are more and more demands for adjustable luminous direction of installed light bulbs and lighting devices. [0004] In the prior art, for example, Chinese utility model patent application CN201120409272.9 discloses an LED light bulb, the main body of which is connected to the lamp cap in a rotatable manner relative to the lamp cap. Requirements, then rotate the bulb body in the opposite direction. At this time, the lamp ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/232F21V23/00F21V19/00F21V27/00F21V14/02F21V17/12F21Y115/10
Inventor 周常颜邹昌刚
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD