JP5530746B2 - Light emitting diode lamp - Google Patents

Description

  The present invention relates to a light emitting diode lamp, and more particularly to a light emitting diode lamp capable of rotating 360 degrees.

  Currently, light emitting diodes (LEDs) have advantages such as low power consumption and long life. Therefore, cold cathode fluorescent lamps (CCFLs) are used as light emitting elements in lighting devices instead of cold cathode fluorescent lamps (Cold Cathode Fluorescent Lamps, CCFLs). Widely applied to traffic command lamps, indoor lighting lamps, etc.

  Since a kind of light-emitting diode lamp includes two semicircular support holders that sandwich the light-emitting diode module, the light-emitting diode module can rotate within a finite angle range. However, since the plurality of light emitting diodes are uniformly distributed around the body of the light emitting diode module, the light rays from the plurality of light emitting diodes are scattered in all directions, and the user needs illumination in one direction. , Waste some of the rays. There are many types of rotating module parts of the light emitting diode lamp, and the manufacturing cost is high. Moreover, since the light emitting diode module of the light emitting diode lamp cannot be easily replaced, it is inconvenient to use (see Patent Document 1).

  Other types of rotatable light-emitting diode lamps can adjust the irradiation direction by 160 degrees. However, since all the light emitting diodes are installed on both sides of the printed circuit board, the irradiation direction is directed forward and backward separately, and when the user needs lighting in one direction, a part of the light beam is wasted To do. Note that the longer the usage time of the light emitting diode lamp, the higher the temperature becomes, but since no heat radiating device is installed, the life of the light emitting diode lamp is shortened. Further, since the rotation angle is only 160 degrees, a rotation blind angle is generated. Moreover, since the said light emitting diode lamp cannot be removed easily at any time, use is inconvenient (refer patent document 2).

US Pat. No. 5,911,660 US Pat. No. 5,726,535

  The object of the present invention is to solve the above-mentioned problems, to be able to rotate 360 degrees, to limit the number of rotations, and to concentrate the illumination light beam in an area requiring brightness, and to easily remove and attach it. It is an object to provide a light emitting diode lamp capable of performing the following.

  The light emitting diode lamp according to the present invention includes a lamp body and a lamp head. The lamp body includes at least one printed circuit board having a plurality of light emitting diodes installed on one surface, a lamp cover that covers the plurality of light emitting diodes, and the at least one printed circuit coupled to the lamp cover. An external frame for fixing a plate inside, the lamp cover and the external frame located on the sides of the lamp cover and the external frame so as to fix the lamp cover and the external frame, and having a first electrode and a second electrode; A rotating holder provided with a first series contact portion that is a cylindrical body projecting to a cylindrical body projecting to the side opposite to the cover. The lamp head has a third electrode and a fourth electrode, and is fixedly connected to a power supply holder provided with a second connecting part that is a cylindrical recess, and one end of the power supply holder facing the second connecting part. And a connecting portion. The first connecting portion is inserted into the second connecting portion, closely engages with the second connecting portion, and can rotate relative to the second connecting portion by 360 degrees. One electrode is in contact with the third electrode, and the second electrode is in contact with the fourth electrode.

  The light-emitting diode lamp according to the present invention has an independent lamp body and a lamp head, and the lamp head is mounted on the lamp holder via a connection portion, and the first series connection portion is inserted into the second connection portion to be tightly connected. By engaging, the light emitting diode lamp can be easily removed or attached to mount the lamp body on the lamp head, and the first series connection portion is relative to the second connection portion. The first electrode of the first connection portion and the third electrode of the second connection portion are still in contact with each other, and the second electrode of the first connection portion and the fourth electrode of the second connection portion are kept in contact with each other. Since the electrodes are still in contact, the lamp body can be rotated relative to the lamp head 360 degrees relative to the lamp head without interruption of the current, so Adjust to concentrate the illumination light rays to the area in need of brightness.

It is an exploded view of the light emitting diode lamp which concerns on 1st embodiment of this invention. It is an assembly drawing of the light emitting diode lamp which concerns on 1st embodiment of this invention. It is an assembly drawing of the light emitting diode lamp which concerns on 2nd embodiment of this invention. It is an exploded view of the light emitting diode lamp which concerns on 3rd embodiment of this invention. It is an exploded view of the light emitting diode lamp which concerns on 4th embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  Referring to FIG. 1, a light emitting diode lamp L01 according to a first embodiment of the present invention includes a lamp body 1 and a lamp head 2. The lamp body 1 includes a rotation holder 11, an external frame 12, a printed circuit board 14, and a lamp cover 15. The lamp head 2 includes a power supply holder 21 and a connection portion 22. A plurality of light emitting diodes 141 are installed on one surface of the printed circuit board 14. The lamp cover 15 is made of a transparent or translucent material, is located on one side of the printed circuit board 14 having the light emitting diode 141, and covers the printed circuit board 14. The outer frame 12 and the lamp cover 15 are coupled to fix the printed circuit board 14 inside. In order to extend the service life of the light emitting diode 141, a heat radiation module 13 having a plurality of heat radiation fins 131 is installed between the printed circuit board 14 and the outer frame 12. The heat dissipating module 13 is closely bonded to the other surface of the printed circuit board 14, and a heat dissipating cream (not shown) is provided between the heat dissipating module 13 and the printed circuit board 14. Applied. Since the opening 121 is formed in the external frame 12, the convection effect of the air around the heat radiating fins is strengthened to increase the heat radiation efficiency, and the operating temperature of the printed circuit board 14 and the light emitting diode 141 is lowered. . The rotating holder 11 is located on the side of the outer frame 12 and the lamp cover 15 and couples and fixes the outer frame 12 and the lamp cover 15 together. The rotating holder 11 has a first series contact portion 111 that is a cylindrical body projecting from a cylindrical body projecting to the side opposite to the lamp cover. The power supply holder 21 has a second connecting portion 211 that is a cylindrical recess recessed inward. The connecting portion 22 is fixedly connected to one end of the power supply holder 21 facing the second connecting portion 211. A screw thread 221 for screwing into the lamp holder is installed outside the connecting portion 22.

  Referring to FIG. 2, the first contact portion 111 includes a first electrode 111 </ b> A that surrounds a side wall of the first contact portion 111, a second electrode 111 </ b> B that is positioned at an end of the first contact portion 111, Is provided. The second connecting portion 211 includes a third electrode 211A that surrounds the side wall of the second connecting portion 211 and a fourth electrode 211B that is located at the bottom of the second connecting portion 211. The first electrode 111A and the third electrode 211A have the same polarity, the second electrode 111B and the fourth electrode 211B have the same polarity, and the first electrode 111A and the second electrode 111B have the same polarity. The polarities are contradictory.

  When assembling the light emitting diode lamp L01, the first connecting portion 111 of the lamp body 1 is inserted into the second connecting portion 211 of the lamp head 2 and is closely engaged, and then the thread 221 of the contact portion 22 is inserted. Thus, the lamp head 2 is screwed into the lamp holder. In the present embodiment, the first electrode 111A and the third electrode 211A are all annular, and the second electrode 111B and the fourth electrode 211B are respectively the end of the first connecting portion 111 and the second connecting portion. The first electrode 111A and the third electrode 211A are still in contact with each other when the first connecting portion 111 rotates relative to the second connecting portion 211 because the first connecting portion 111 rotates relative to the second connecting portion 211. The second electrode 111B and the fourth electrode 211B still maintain contact and do not interrupt the current. Therefore, when the light emitting diode lamp L01 according to the present embodiment is used, the lamp body 1 can be rotated relative to the lamp head 2 360 degrees many times, and the irradiation direction of the light emitting diode 141 is adjusted. Then, the illumination light beam is concentrated on an area requiring brightness.

  Referring to FIG. 3, the light emitting diode lamp L02 according to the second embodiment of the present invention includes a lamp body 3 and a lamp head 4. The lamp body 3 includes a rotation holder 31, an external frame 32, and a lamp cover 35. The lamp head 4 includes a power supply holder 41 and a contact portion 42. The rotating holder 31 has a first connecting portion 311, and the power supply holder 41 has a second connecting portion 411. The first series contact portion 311 includes a first electrode 311A and a second electrode 311B surrounding the side wall of the first series contact portion 311. The second connecting part 411 includes a third electrode 411A and a fourth electrode 411B surrounding the side wall of the second connecting part 411. The first electrode 311A and the third electrode 411A have the same polarity, the second electrode 311B and the fourth electrode 411B have the same polarity, and the first electrode 311A and the second electrode 311B have the same polarity. The polarities are contradictory. In the present embodiment, since the first electrode 111A, the second electrode 311B, the third electrode 411A, and the fourth electrode 411B are all annular, the first series connection portion 311 is connected to the second connection portion 411. When rotating relatively, the first electrode 311A and the third electrode 411A are still in contact with each other, and the second electrode 311B and the fourth electrode 411B are still in contact with each other. Do not interrupt. Therefore, when the light emitting diode lamp L02 according to the present embodiment is used, the lamp body 3 can be relatively rotated 360 degrees with respect to the lamp head 4.

  Referring to FIG. 4, the light emitting diode lamp L03 according to the third embodiment of the present invention includes two printed circuit boards 14 ', and other components are the same as those of the light emitting diode lamp L01 according to the first embodiment. Therefore, detailed explanation is omitted. Since the two printed circuit boards 14 'are connected to form a depression angle of a predetermined angle, the light emitting diodes 141 on the two printed circuit boards 14' are irradiated in different directions, and the light emitting diode lamp L03 emits a wide area. it can. In addition, when the number of the printed circuit boards 14 'is increased, the number of the light emitting diodes 141 is increased, and thus the illumination brightness is increased.

  Referring to FIG. 5, the light emitting diode lamp L04 according to the fourth embodiment of the present invention includes three printed circuit boards 14 '', and other components are the same as the light emitting diode lamp L01 according to the first embodiment. Therefore, detailed description is omitted. Since the three printed circuit boards 14 ″ are sequentially connected and a depression angle of a predetermined angle is formed between two adjacent printed circuit boards 14 ″, the light emitting diode lamp L04 can irradiate a wider area. .

  As described above, increasing the number of printed circuit boards increases the illumination range of the light emitting diode lamp.

  The present invention has been specifically described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention. Thus, the protection scope of the present invention is determined from the following claims.

L01, L02, L03, L04 Light-emitting diode lamp 1, 1 ′, 1 ″, 3 Lamp body 2, 4 Lamp head 11, 31 Rotating holder 12, 32 External frame 13 Heat radiation module 14, 14 ′, 14 ″ Print circuit Plate 15, 35 Lamp cover 21, 41 Power supply holder 22, 42 Contact portion 111, 311 First connection portion 121 Opening 131 Radiation fin 141 Light emitting diode 211, 411 Second connection portion 221, 421 Thread 111A First electrode 111B Second Electrode 211A Third electrode 211B Fourth electrode

Claims (3)

At least one printed circuit board having a plurality of light emitting diodes installed on one surface, a lamp cover covering the plurality of light emitting diodes, and being coupled to the lamp cover to fix the at least one printed circuit board inside. A first electrode and a second electrode, opposite to the lamp cover, positioned on the sides of the lamp cover and the outer frame so as to couple and fix the lamp cover and the outer frame. A rotating holder provided with a first series contact portion that is a cylindrical body projecting to the side, and a lamp body,
A power supply holder having a third electrode and a fourth electrode and provided with a second connecting part which is a cylindrical recess, and a connecting part fixedly connected to one end of the power supply holder opposite to the second connecting part; A lamp head comprising,
A light-emitting diode lamp comprising:
The first connecting portion is inserted into the second connecting portion, closely engages with the second connecting portion, and can rotate relative to the second connecting portion by 360 degrees. One electrode and the third electrode are in contact, the second electrode and the fourth electrode are in contact ,
The first electrode and the second electrode all wrap around the side wall of the first connecting portion, and the third electrode and the fourth electrode all wrap around the side wall of the second connecting portion .   The light emitting diode lamp according to claim 1, wherein a heat dissipation module having a plurality of heat dissipation fins is installed between the printed circuit board and the external frame.   The light emitting diode lamp of claim 2, wherein an opening is formed in the external frame.

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