JP3121916U - LED lamp and heat dissipation structure thereof - Google Patents

Abstract

The present invention relates to an LED lamp and a heat dissipating structure thereof, and more particularly, to provide a heat dissipating structure for conducting and dissipating heat generated by an LED lamp for lighting and a light emitting diode (LED).
A heat dissipation structure is used to dissipate heat generated by an LED, and includes a first heat dissipation body and a second heat dissipation body. The first heat dissipating body has a casing having an opening formed thereon. The second heat dissipation body is connected to the first heat dissipation body and includes at least one heat pipe and a plurality of heat dissipation fins connected to the heat pipe. In this configuration, the LED operates continuously under a suitable operating temperature, and thus the LED life span is long.
[Selection] Figure 1

Description

  The present invention relates to an LED lamp and a heat dissipating structure thereof, and more particularly to a heat dissipating structure for conducting and dissipating heat generated by an LED lamp for lighting and a light emitting diode (LED).

  Since LEDs have many advantages such as energy saving and long life and high illumination, they are widely applied to lighting of electronic devices or lamps. In order to further increase the illumination area and brightness of the LED, multiple LEDs are usually assembled together to form an LED lamp. However, with the increase in the number of assembled LEDs and the continuous development of powerful LEDs, the heat generated by such LEDs is increased step by step accordingly. Therefore, providing an LED lamp that has a heat dissipation structure and can be easily assembled and manufactured is an important problem in this technology.

  Taiwan Patent Application No. As disclosed in 94205809, a conventional LED lamp mainly includes a heat dissipation structure, a light emitting module, and a lamp head. In this patent document, the heat dissipation structure includes a heat dissipation module and a heat conduction liquid. The heat dissipation module has a lamp chamber. At both ends of the heat dissipation module, the lamp chambers are respectively formed with a first opening and a second opening. A sealed chamber is provided on the heat dissipation module between the first opening and the second opening. The heat transfer liquid is filled in the sealed chamber. A light emitting module is provided on the second opening of the heat dissipation module. In addition, the lamp head covers the heat dissipation module of the light emitting module to form an LED lamp. With the above arrangement, the heat generated by the light emitting module can be conducted and dissipated.

  In practice, however, conventional LED lamps still have the following disadvantages. The heat dissipation module of the LED lamp is intended to conduct and dissipate the heat generated at the front of the light emitting module, so that the heat generated at the rear of the light emitting module is effectively and rapidly conducted outward. I can't. Since the amount of heat conducted is very limited, a relatively large amount of heat accumulates at the rear of the light emitting module, causing a shortened life of the LED of the light emitting module and rapid aging and damage of surrounding components. Furthermore, since the sealed chamber is formed by assembling the heat dissipation module and the lamp cover, the manufacturing procedure for the sealed connection is very complicated. After heating, the heat transfer liquid in the chamber generates high temperatures and pressures to make it easier to leak the heat transfer liquid from the connection between the heat dissipation module and the lamp cover.

  In view of the above disadvantages, therefore, the inventor proposes the present invention given the name “LED lamp and its heat dissipation structure” to solve the above problems based on expert experience and careful investigation. .

  The present invention provides an LED lamp heat dissipating structure in which the LED is continuously operated at a suitable operating temperature and the lifetime of the LED can thus be extended.

  The present invention relates to a heat dissipation structure of an LED lamp for dissipating heat generated by an LED. The heat dissipation structure of the present invention includes a first heat dissipation body and a second heat dissipation body. The first heat dissipating body has a casing having a formed opening. The second heat dissipation body is connected to the first heat dissipation body and includes at least one heat pipe and a plurality of heat dissipation fins connected to the heat pipe.

  On the other hand, the present invention provides an LED lamp. The simple assembly of all components greatly simplifies the manufacturing procedure and can reduce assembly and labor time costs.

  The present invention relates to an LED lamp comprising a heat dissipating structure, at least one LED and a lamp head. The heat dissipation structure includes a first heat dissipation body and a second heat dissipation body. The first heat dissipating body has a casing having an opening formed thereon. The second heat dissipation body is connected to the first heat dissipation body, and includes at least one heat pipe and a plurality of heat dissipation fins connected to the heat pipe. A pipe housing is provided for each heat dissipating fin. The LED is housed in the casing of the first heat dissipation body. The lamp head has a mounted terminal and an insulating cover coupled to the underside of the mounted terminal. Inside the attached terminal, there are two power supply lines each passing through the duct housing part of each heat dissipating fin electrically connected to the LED. The insulating cover covers the outside of the second heat dissipating body and is connected to the first heat dissipating body.

Detailed description of the invention

  The detailed description and technical details of the present invention are described with reference to the accompanying drawings. However, it is understood that the drawings are illustrative and are not used to limit the scope of the invention.

1 and 2, FIG. 1 is an exploded perspective view of the first and second heat dissipation bodies of the present invention, and FIG. 2 is an exploded perspective view of the second heat dissipation body of the present invention. The present invention provides an LED lamp and its heat dissipation structure. The LED lamp mainly includes a heat dissipation structure 1 and a lamp head structure 5. (See Figure 3)
The heat dissipation structure 1 includes a first heat dissipation body 10 and a second heat dissipation body 20. The first heat dissipating body 10 has a conical casing 11. The casing 11 can be made of a suitable material having excellent thermal conductivity, such as aluminum, by extrusion or press molding. Two circular openings 12 and 13 are formed on the upper and lower sides of the casing, respectively. Between the openings 12 and 13 and in the casing 11, a light reflective material is coated to form a reflective surface 14. Further, the plurality of radiant heat dissipation pieces 15 protrude outward from the outer periphery of the casing 11. The upper part of each heat dissipating piece 15 is formed by a stepped connection section 151, respectively.

  The second heat dissipation body 20 is connected to the first heat dissipation body 10 and includes a heat pipe 21, a plurality of heat dissipation fins 22, a fixed base 23, two positioning tubes 24 and 25, and a mask 26. The heat pipe 21 is formed in an “I-shaped” shape. The bottom of the heat pipe has a flat surface 211, which is filled with capillary structure and working fluid. A through hole 221 is provided at the center of each heat dissipation fin 22. The annular wall 222 extends upward from the periphery of the through hole 221. On both the left and right sides of the through-hole 221, a pipe accommodating portion 223 is created. In this embodiment, the pipe accommodating portion 223 is a through hole having an annular wall 224 that extends upward at the peripheral portion thereof. The heat dissipating portions 22 are adjusted to lie on top of each other. The top surface of each annular wall 222 or 224 is guided to contact the bottom surface of adjacent heat dissipating fins 22. A heat dissipation flow path 225 is formed between two adjacent heat dissipation fins 22.

  The fixed base 23 has a first annular body 231 and a second annular body 232 that extend upward from the first annular body 231. The through hole 233 is formed in the center of the first annular body 231 and the second annular body 232. Further, two fixing holes 234 are provided in the first annular body 231. The through hole 233 has an end portion that supports the flat surface 211 and is adapted to be inserted by the heat pipe 21. Fixing holes 234 are adapted to be inserted by positioning tubes 24 and 24, respectively. The other ends of the heat pipe 21 and the positioning tubes 24 and 25 are sequentially connected to the through holes 221 and the pipe line accommodating portions 223 of the respective heat dissipating fins 22. Since the mask 26 covers the heat pipe 21, the heat dissipating fins 22, and the positioning tubes 24, 25, the ends of the positioning tubes 24, 25 protrude upward beyond the outside of the mask 26. Similarly, the positioning tubes 24, 25 are fixed on the mask 26 in such a way that each heat dissipating fin 22 is fastened and positioned between the fixed base 23 and the mask 26.

  3-6, FIG. 3 is an exploded perspective view of the heat dissipation structure and lamp head assembly of the present invention, and FIG. 4 is a schematic diagram illustrating the assembly of the heat dissipation structure and lamp head assembly of the present invention. 5 is a longitudinal sectional view of FIG. 4, and FIG. 6 is a transverse sectional view of FIG. The lamp / head assembly 5 includes a light emitting module 51 and a lamp / head 52. The light emitting module 51 includes a circuit board 511 and an LED 512 connected to the circuit board 511. The lamp head 52 has an attached terminal 521 and an insulating cover 522 connected to the lower side of the attached terminal 521. Two power supply lines 523 are provided in the attached terminal 521. A plurality of longitudinal discharge grooves 524 are regularly provided at the periphery of the insulating cover 522 so as to correspond to the heat dissipating outflow paths 225 of the respective heat dissipating fins 22. The inner surface of the bottom end portion of the insulating cover 522 is formed with a connection section 525 for connection corresponding to the connection section 151 of the first heat dissipating body 10.

  The assembly procedure of the present invention is described below.

  First, since the circuit board 511 of the light emitting module 51 abuts against the bottom surface of the fixed base 23 of the second heat dissipating body 20, the rear part of the LED 512 accurately contacts the flat surface 211 of the heat pipe 21. Guided to do. Then, each lead connected to the circuit board 511 of the light emitting module 51 is set so as to pass through the positioning tubes 24 and 25 and protrudes from the upper side of the positioning tubes 24 and 25. The leads are electrically coupled to each power supply line 523 of the lamp head 52 to achieve an electrical connection between the lamp head 52 and the light emitting module 51. Furthermore, in order to achieve intimate contact between the circuit board 511 and the heat pipe 21, a heat transfer medium (not shown) can be coated therebetween. Finally, since the connection section 151 of the first heat dissipation body 10 is connected corresponding to the connection section 525 of the insulating cover 522, the light emitting module 51 corresponds to the upper opening 12 of the first heat dissipation body 10. Provided. Since the heat generated by the LED 512 is dissipated through the first heat dissipating body 10 and the second heat dissipating body 20, the LED 512 can be operated continuously under an appropriate operating temperature. Therefore, its life span is long.

  With reference to FIG. 7, FIG. 7 is a cross-sectional view showing the assembly of another embodiment of the second heat dissipation body of the present invention. In addition to the above embodiment, the heat dissipating fins 22 of the second heat dissipating body 20 can also employ a profile material as shown in this embodiment. In the periphery of each heat dissipating fin 22, two recessed pipe accommodating portions 223 are provided so as to correspond to each other. In the present embodiment, the pipe accommodating portion 223 is a recessed groove. The power supply line 523 of the lamp head 52 is inserted into each recessed groove and can therefore be fixed there and is electrically connected to the circuit board 511 of the light emitting module 51.

  8 and 9, FIG. 8 is a schematic diagram showing the assembly of another embodiment of the LED lamp of the present invention, and FIG. 9 is a transverse cross-sectional view of FIG. In addition to the above embodiments, the heat pipe 21 of the second heat dissipation body 20 can be variously designed to accommodate different amounts of heat generated by the various light emitting modules 51. The heat pipe 21 is formed in a “U-shaped” or “L-shaped” shape (not shown). Further, such arrangement is suitable for a powerful LED 512, as multiple heat pipes may be provided (not shown) to increase the thermal conductivity of the second heat dissipation body 20. It is.

  According to the above part, the LED lamp of the present invention and its heat dissipation structure certainly achieve the desired effect by using the above structure. Further, since the structure of the present invention was not published or published for general use prior to patent application, the present invention includes novelty and inventive step and meets the requirements of utility model patents.

  Although the present invention has been described with reference to the above preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various variations and equivalent modifications can be found to those skilled in the art in view of the teachings of the present invention. Accordingly, such variations and equivalent modifications are also encompassed within the scope of the invention as set forth in the appended claims.

It is a development perspective view of the 1st and 2nd heat dissipation main part of the present invention. It is a development perspective view of the 2nd heat dissipation main part of the present invention. 1 is a developed perspective view of a heat dissipation structure and a lamp / head assembly of the present invention. FIG. 1 is a schematic diagram illustrating the assembly of a heat dissipation structure and lamp / head assembly of the present invention. It is sectional drawing of the longitudinal direction of FIG. It is sectional drawing of the horizontal direction of FIG. It is sectional drawing which shows the assembly of the other Example of the 2nd heat dissipation main body of this invention. 4 is a schematic diagram showing the assembly of another embodiment of the LED lamp of the present invention. It is sectional drawing of the horizontal direction of FIG.

Claims (20)

In order to dissipate heat generated by the LED, an LED lamp heat dissipating structure comprising a first heat dissipating body and a second heat dissipating body includes an opening formed on the first heat dissipating body. An LED comprising: a casing having: a second heat dissipation body coupled to the first heat dissipation body; and at least one heat pipe and a plurality of heat dissipation fins coupled to the heat pipe. Lamp heat dissipation structure. 2. The heat dissipation structure for an LED lamp according to claim 1, wherein a plurality of radiant heat dissipation portions protrude from the outside of the casing of the first heat dissipation body. 2. The heat dissipation structure for an LED lamp according to claim 1, wherein the reflecting surface is formed inside the casing of the first heat dissipation body. The heat dissipating structure of the LED lamp according to claim 1, wherein the heat pipe of the second heat dissipating main body has any one of “I-shaped”, “L-shaped” and “U-shaped” shapes. The heat dissipation structure of the LED lamp to be formed. 5. The heat dissipation structure for an LED lamp according to claim 4, wherein a bottom portion of the heat pipe of the second heat dissipation body has a flat surface. 2. The heat dissipating structure of the LED lamp according to claim 1, wherein each heat dissipating fin has a through hole and an annular opening extending from the peripheral portion of the through hole and penetrating both sides of the through hole. A heat dissipating structure of an LED lamp comprising a wall and an annular wall extending upward from the peripheral portion of the through-hole. 7. The heat dissipation structure for an LED lamp according to claim 6, wherein the heat dissipation structure for the LED lamp. The heat dissipation structure for an LED lamp according to claim 6, wherein the second heat dissipation body further includes a fixed base and two positioning tubes, and the fixed base is respectively formed by one end of the heat pipe and the positioning tube. The heat of the LED lamp is provided with a through-hole and a fixed hole to be inserted, and the other ends of the heat pipe and each positioning tube are connected to the through-hole and the through-hole of each heat-dissipating fin, respectively. Dissipative structure. 9. The heat dissipating structure of the LED lamp according to claim 8, wherein the second heat dissipating body further includes a cover for covering the heat pipe, the heat dissipating fins, and each positioning tube. A heat dissipating structure for the LED lamp, wherein the heat dissipating fin is sandwiched between the fixed base and the cover. An LED lamp having a heat dissipation structure comprising a first heat dissipation body and a second heat dissipation body, the first heat dissipation body having a casing having an opening formed thereon; The second heat dissipation body is connected to the first heat dissipation body, a heat dissipation structure including at least one heat pipe and a plurality of heat dissipation fins, and a pipe accommodating portion provided to each heat dissipation fin A lamp head having at least one LED housed in the casing of the first heat dissipation body, a mounted terminal, and an insulating cover coupled to the lower side of the mounted terminal; Two power supply lines connected to the inside of the terminal, each power supply line passing through the duct housing portion of each of the heat dissipation fins electrically connected to the LED. It consists medium feed line, wherein the insulating cover covers the outer side of the second heat dissipating body, and, LED lamps for connecting on the first heat dissipation body. 11. The LED lamp according to claim 10, wherein the plurality of radiant heat dissipating portions protrude from the outside of the casing of the first heat dissipating body. The LED lamp according to claim 10, wherein a reflective surface is formed inside the casing of the first heat dissipation body. 11. The LED lamp according to claim 10, wherein the heat pipe of the second heat dissipation body is formed in any one of an “I shape”, an “L shape”, and a “U shape” shape. LED lamp. 11. The LED lamp according to claim 10, wherein each heat dissipating fin includes a through hole and an annular wall extending upward from the peripheral portion of the through hole, and both sides of the through hole have the pipe line receiving portion. Wherein each of the duct accommodating portions is a through-hole, and the annular wall extends upward from the peripheral portion of the through-hole. 15. The LED lamp according to claim 14, wherein the heat dissipating fins are adjusted to be placed on top of each other such that the upper surface of each annular wall is in contact with the bottom surface of the adjacent heat dissipating fins. An LED lamp that is guided and a heat dissipation flow path is formed between two adjacent heat dissipation fins. 16. The LED lamp according to claim 15, wherein the peripheral portion of the insulating cover of the lamp head is provided with a plurality of discharge grooves to correspond to the heat dissipation / outflow path of each heat dissipation fin. lamp. 15. The LED lamp according to claim 14, wherein the second heat dissipation body further includes a fixed base and two positioning tubes, and the fixed base is inserted through one end of the heat pipe and the positioning tube, respectively. And the other ends of the heat pipe and each of the positioning tubes are respectively connected to the through holes and the through holes of the heat dissipating fins, and each of the lamp heads. The LED power supply line passes through the inside of each positioning tube. 18. The LED lamp according to claim 17, wherein the second heat dissipating body further includes a cover for covering the heat pipe, the heat dissipating fins, and each positioning tube. The LED lamp is disposed between and disposed between the fixed base and the cover. 11. The LED lamp according to claim 10, wherein a peripheral portion of each of the heat dissipating fins is recessed inward to provide the conduit accommodating portion, and the conduit accommodating portion is a power of each of the lamp heads. LED lamps that are recessed grooves to be inserted by the supply line. The LED lamp according to claim 10, further comprising a circuit board for connecting to the LED, wherein a rear portion of the circuit board is in contact with the heat pipe of the second heat dissipation body.

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