TWI388774B - Led reflector - Google Patents

Description

LED reflector light

The invention relates to the field of lighting fixtures. More specifically, the present invention relates to an LED reflector lamp used as a lighting fixture, which has high luminous efficiency and good heat dissipation.

As a solid-state light source with great development potential, LED has been paid more and more attention since its birth in the 1960s due to its long life, firm structure, low power consumption and flexible size. High-voltage halogen lamps are used in a variety of lighting applications. However, the LED lamp itself generates a relatively large amount of heat during operation, thereby generating a large light decay and shortening the service life of the LED lamp, thereby limiting the application range of the LED lamp in the field of illumination to a certain extent.

Since the brightness and power of a single LED light source are not sufficient for illumination, the existing LED lamps for illumination generally have a plurality of LED light sources assembled, and then a lampshade is added to achieve the required brightness and power. The more the number of assembled LED light sources, the higher the brightness and power of the LED lamps produced. 1 shows an LED lamp for illumination in the prior art, wherein the LED lamp is uniformly mounted on the same panel 2 placed horizontally, wherein each LED light source is disposed in the same On the horizontal surface, then the lampshade is installed and then mounted on the ordinary lamp cap 3, which becomes a common PAR lamp sold in the market, as shown in FIG. Although the PAR lamp can meet the lighting requirements, it does not have a special heat conduction and heat dissipation device. Therefore, the heat generated by the multiple LED light sources cannot be effectively dissipated, so that the temperature of the lamp's outer casing is relatively high. There is a danger of getting hot; in addition, the high temperature makes the lamp more susceptible to damage. In addition, since there is no concentrating element, the light emitted by each LED light source cannot be effectively concentrated, so that the utilization of emitted light is low, and to some extent, light is wasted.

For example, the utility model patent number 200820101329.7, the LED street lamp disclosed in the utility model patent of "LED lamp", is also a panel in which a plurality of LED light sources and a lamp cover are mounted on a panel horizontal to the vertical central axis of the casing. Then, it is assembled into a street lamp for illumination, wherein each LED light source is also disposed on the same horizontal surface. Although the LED street lamp disclosed in the utility model has some improvements in heat dissipation, it is designed such that the LED light source face faces outward, so most of the luminous flux emitted by the LED is directly projected onto the assumed working surface, thereby causing glare interference to people. And affect the human eye. This type of luminaire also does not concentrate the light well, so the light efficiency of the lamp is also considerably affected. In addition, if such a luminaire is to be made to have a large power, since all the LEDs are horizontally placed on one plane, the volume thereof must be quite large.

Therefore, in the LED lamp assembled according to the prior art, the luminous flux of the light emitted by the LED is about 90%-100% directly projected on the assumed working surface, and there is a heat dissipation problem, which shortens the service life of the lamp. Their illumination angles are also fixed at a certain angle, and cannot be replaced or adjusted as needed. The disadvantage of this is that since the LED light source faces outward, it may cause glare interference to people, and because of people The vision of the eye can directly contact the LED light source, so the strong light emitted by the LED may cause damage to the human eye; in addition, the light emitted by the existing LED lamp is not well concentrated, so that the light effect of the lamp is equivalent. The influence of the illumination angle can not be adjusted and the scope of its use is limited. Therefore, such an LED lamp cannot be widely applied. Therefore, it is necessary to improve the existing LED lamps used for illumination purposes, on the one hand to improve the thermal conductivity thereof, thereby well solving the heat dissipation problem of the high-power LED lamps and improving the luminous efficiency; on the other hand, the illumination angle can be adjusted. And to improve its concentrating property, it can avoid glare interference and possible harm to people, and can improve luminous efficiency and increase luminous flux.

The object of the present invention is to overcome the above-mentioned shortcomings in the prior art, and to provide a novel LED reflector lamp, which has good thermal conductivity, heat dissipation and concentrating, and the illumination angle can be adjusted to solve the problem from the structure. The eye can directly touch the problem of the LED light source, preventing the glare from the LED from causing damage to the human eye.

The object of the present invention is to provide an LED reflector lamp, comprising the control circuit of the LED reflector lamp, further comprising: at least two LED light sources controlled by the control circuit; at least two a block light source panel, wherein the at least two LED light sources are respectively fixed on the at least two light source panels; at least one heat conducting plate, wherein the at least two light source panels are respectively fixed to the at least one heat conducting plate in a heat conductive manner a reflector having a reflective inner surface, a reflective opening formed by the reflective inner surface edge, and a groove formed at the bottom of the reflector, the heat conducting plate to which the LED light source and the light source panel are fixed Inserting into the interior of the reflector via a slot at the bottom of the reflector such that the LED source is parallel to a central vertical axis of the reflector; and a heat sink having a cavity therein The cavity is sized and shaped to bond with the reflector and at least a portion of the thermally conductive plate.

In a preferred embodiment of the present invention, the LED reflector lamp comprises: two LED light sources; two light source panels, wherein the two LED light sources are respectively fixed on the two light source panels; and a heat conducting plate, The two light source panels are respectively fixed on both sides of the heat conducting plate in a heat conductive manner; wherein the heat sink is annular, and the inner surface thereof is formed to be in close contact with the outer surface of the reflective cup.

In another preferred embodiment of the present invention, the reflector is composed of two symmetrical semi-reflectors disposed symmetrically along a central vertical axis; the reflective inner surface of the semi-reflector is parabolically extended a paraboloid in which the center points of the two LED light sources are respectively located at the focus of the parabola of the paraboloids of the two semi-reflectors. Such a design allows the light emitted by the LED to be reflected by the inner paraboloid of the semi-reflector to achieve a better concentrating effect, so that the LED reflector lamp has a higher luminous flux.

It has been shown that by setting the LED light source at the focal position of the parabola where the reflective inner surface of the reflector is located, the luminous flux can be increased by about 5%-20%.

The LED reflector lamp of the present invention may further comprise a metal cap disposed on a central vertical axis of the reflector, wherein at least two notches corresponding to the thickness of the heat conducting plate are disposed on opposite sidewalls, such that the heat conducting plate is snapped In the gap.

According to the present invention, the LED light source can be fixed on the light source panel by dispensing or by any mechanical means, and the light source panel and the heat conducting plate can be fixed by fasteners, dispensing or adhesive heat-dissipating oil. Together. Preferably, a heat dissipation oil layer is coated between the light source panel and the heat conducting plate.

Preferably, the reflector is designed in the shape of a horn and the reflective inner surface of the reflector is plated with a reflective material.

The heat sink of the present invention may be a hollow cylinder whose inner surface is designed to be curved in engagement with the reflector, so as to be in close contact with the outer surface of the reflector. A plurality of fins parallel to and spaced apart from the central vertical axis of the reflector may be disposed on the outer surface of the heat sink to achieve a better heat dissipation effect. In addition, one end of the heat sink may be provided with a plurality of ribs extending from the center of the heat sink to the side walls thereof, on the one hand, the function of the reinforcing ribs, and on the other hand, the heat dissipation.

According to the present invention, the LED light source may be disposed near the bottom of the reflector, or may be disposed adjacent to the reflector opening. The light emitted by the LED light source is reflected by the inner surface of the reflector, thereby changing the angle of the beam reflected by the reflector, and the range of the reflection angle can be controlled to 10°-60°.

Preferably, the heat conducting plate of the present invention is disposed such that its central vertical axis overlaps the central vertical axis of the reflector, and the tangent to the intersection of the central vertical axis of the heat conducting plate and the arc of the reflector is The central axis of the heat conducting plate is perpendicular to the vertical axis.

The heat conducting plate, the heat sink and the reflecting cup may be independent parts, or two or two of them may be integrally formed, or three of them may be integrally formed.

To enhance the heat dissipation effect, the light source panel, the heat conducting plate, the heat sink and the reflector cup are preferably made of a heat conductive material such as aluminum, aluminum alloy or ceramic.

Since the LED reflector lamp of the present invention has a very high light efficiency and good condensing property, the reflector cover may not be provided with a reflector, and of course, a reflector can be added as needed.

The LED reflector lamp of the invention closely contacts the LED chip light source panel and the heat conduction plate, and the heat conduction plate and the heat sink are connected together, thereby forming a good heat conduction and heat dissipation path, and the heat emitted by the LED light source passes through the light source panel- The heat-dissipating plate-heat sink's heat dissipation path and the reflector's heat dissipation reduce the temperature of the LED light source. The glass reflector is not provided with the glass reflector, and the LED light source can circulate with the air, which is beneficial to the heat dissipation, and can further reduce the heat generated when the LED emits light, thereby ensuring that the LED is not hot, thereby prolonging the life of the LED reflector lamp, thereby solving the problem. The problem of heating of high-power LED reflector lamps, together with the dense arrangement of multiple LEDs, is conducive to making LED reflector lamps with higher power.

Since the LED light source is placed at the center of the reflector, the light emitted by the LED can be refracted through the reflector to provide good concentrating performance. In addition, by changing the position of the LED light source, the beam angle refracted by the reflector can be changed, which is beneficial for more occasions.

When the LED light source is placed at the focal position of the parabola where the reflective inner surface of the reflector is located, the light emitted by the LED has better concentrating performance and higher luminous flux. In this case, the LED light reflector with smaller power can achieve the same illumination effect as the current higher power LED lamp; and because the power is smaller, the heat generation of the LED is smaller, so the service life of the LED lamp can be Longer.

The concept, the specific structure and the technical effects of the present invention will be further described in conjunction with the accompanying drawings in order to fully understand the objects, features and effects of the invention.

Referring to FIG. 3 to FIG. 6, there is shown an LED reflector lamp 100 as a first preferred embodiment of the present invention. The reflector lamp 100 includes two LED light sources 60, two light source panels 20, a heat conducting plate 10, and heat dissipation. The device 50, the reflector cup 30, the metal cap 40, and a control circuit (not shown) that controls the LED light source. The control circuit can be selectively formed as a heat sink mounted on the outer surface of the heat sink integrally with the LED reflector lamp, or can be formed separately from the LED with a plug-in connector for connection with the LED reflector lamp. The control circuit is not the gist of the present invention and will not be described in detail herein.

The LED light source can be constructed from one or more LEDs. In this embodiment, the two LED light sources 60 are each composed of three chip LEDs, which are respectively fixed on the two light source panels 20. The LED light source 60 and the light source panel 20 can be glued together or fixed together in any known mechanical manner. Each of the light source panels 20 is provided with screw holes 22, 24, and the light source panel 20 is fixed to the heat conducting plate 10 by screws. A layer of heat-dissipating oil may be applied between the light source panel 20 and the heat-conducting plate 10 to provide better heat conduction. Of course, the light source panel 20 can be fixed on the heat conducting plate 10 by any other means known in the art, and it is preferable to form a good heat conduction and heat dissipation effect. For example, the heat absorbing oil with strong viscosity can be directly used. The light source panel 20 is bonded to the heat conducting plate 10.

As shown in FIGS. 5 and 6, the heat conducting plate 10 has a semicircular plate shape, and is provided with a notch 12 and a screw hole 14 at positions corresponding to the screw holes 22, 24 of the light source panel 20, respectively. Two light source panels 20 are placed on both sides of the heat conducting plate 10, and the screw holes 22, 24 of the light source panel 20 are respectively aligned with the notches 12 and the screw holes 14 of the heat conducting plate 10, and the two light source panels can be turned by screws. 20 is locked on both sides of the heat conducting plate 10. As described above, a layer of heat dissipating oil may be applied to the contact surface between the light source panel 20 and the heat conducting plate 10 before the light source panel 20 and the heat conducting plate 10 are locked. Of course, the two light source panels 20 can be directly bonded to both sides of the heat conducting plate 10 by using a heat-dissipating oil with better viscosity.

The heat sink 50 is annular, and the heat conducting plate 10 is disposed in the inner cavity of the heat sink 50 and overlaps the central vertical axis of the heat sink. In the present embodiment, the heat sink 50 and the heat conducting plate 10 are integrally formed. Of course, the two can also be connected together by pluggable to form a good thermal contact. As shown in Figures 4 and 6, the outer end portion of the heat sink 50 has a plurality of ribs 54 extending from the center of the end portion to the side walls of the heat sink. These ribs 54 serve as both reinforcing ribs and help Cooling. The inner cavity surface of the heat sink 50 is designed to be curved in engagement with the outer surface of the reflector cup 30 so as to abut against the outer surface 36 of the reflector cup 30 to facilitate dissipation of heat through the reflector cup 30. In addition, a plurality of fins 52 are arranged on the outer surface of the heat sink 50 in parallel with and spaced apart from the center vertical axis. The heat sinks 52 can also dissipate the heat transferred from the heat conducting plate 10 to reach a good level. Better heat dissipation.

The reflector cup 30 has a parabolic reflective inner surface 32, a reflective opening formed by the edge of the reflective inner surface 32, and a through slot 34 formed in the bottom of the reflector cup 30. Reflector 30 is designed in a horn shape with a straight bottom The diameter is smaller, and the larger the diameter is toward the opening, the PAR lamp has the characteristics, and has higher light efficiency and better condensing property. The reflective inner surface 32 of the reflector 30 is a smooth curved surface that can be plated with a bright reflective material to increase light efficiency. The light emitted by the LED light source 60 is reflected onto the reflective inner surface 32 of the reflector 30. It is then refracted through the reflective opening. In this embodiment, the glass reflective mask is not disposed at the reflective opening, so that the chip LED can be connected to the atmosphere, which is more favorable for heat dissipation, thereby further reducing the heat generated when the LED emits light. Of course, when needed, you can also add a smooth glass cover with good transparency. The shape and size of the through groove 34 is such that the heat conducting plate 10 to which the LED light source 60 and the light source panel 20 are fixed is inserted into the inside of the reflector cup 30 through the through groove 34, so that the LED light source 60 and the center vertical axis of the reflector cup 30 parallel. More preferably, the heat conducting plate 10 is disposed such that its central vertical axis overlaps the central vertical axis of the reflector cup 30, and the tangent to the intersection of the central vertical axis of the heat conducting plate 10 and the arc of the reflector cup 30 is perpendicular to the center of the heat conducting plate 10. The axis is vertical. At this time, the three chip LEDs arranged on each of the light source panels 20 are disposed on the same vertical plane, and the light emitted by them can be uniformly reflected on the reflective inner surface 32 of the reflector 30, and the refracted light can be Gather effectively to achieve illumination brightness.

According to the present invention, the light source panel 20 can be designed such that the LED light source 60 is closer to the bottom through groove 34 of the reflector cup 30, or can be designed to be closer to the reflective opening of the reflector cup 30. As described above, since the light emitted by the chip LED is reflected by the reflective inner surface 32 of the reflector cup 30, changing the position of the LED light source 60 at the reflector cup 30 can change the angle of the beam reflected by the reflector cup 30, thereby Adjust the light illumination angle of the LED reflector. This is in contrast to prior art LED luminaires by means of a reflector Control beam angles are different. In general, the beam angle of the LED reflector lamp of the present invention can be controlled to a range of 10 to 60 degrees.

The metal cap 40 is a hollow cylinder which is open at one end and closed at the other end, and has a notch 42 on opposite sides thereof. The size of the notch matches the thickness of the heat conducting plate 10, so that the metal cap 40 can be directly fastened to the heat conducting plate 10. Since the metal cap 40 is also located at the central axis position of the reflector cup 30, it can block the light emitted from the LED light source 60 located directly under the metal cap 40 via the central position of the reflector cup 30, so that the human eye does not directly see the LED light source directly. The light emitted helps protect the human eye. The closed end top surface of the metal cap 40 can be made in a green fluorescent design for use in identifying the LED reflector lamp of the present invention.

The heat conducting plate 10, the heat sink 50 and the reflector cup 30 may be three separate portions that are fixed together by plugging to form a good thermal contact. The three parts may also be integrally formed in two, that is, the heat conducting plate 10 and the heat sink 50 are integrally formed, or the heat conducting plate 10 and the reflecting cup 30 are integrally formed, or the heat sink 50 and the reflecting cup 30 are integrally formed. The heat conducting plate 10, the heat sink 50, and the reflector cup 30 may also be integrally formed.

The light source panel 20, the heat conducting plate 10, the heat sink 50, and the reflector cup 30 are preferably made of a material that can conduct heat, such as aluminum, aluminum alloy, or ceramic.

FIG. 7 is a perspective view of an LED reflector lamp according to a second embodiment of the present invention. This embodiment is basically the same as the structure of the first embodiment. The main difference is that the number of the light source panels 220 is three, and correspondingly, the LED light sources 260 are also three, and each LED light source is fixed to one light source. On the panel, the heat conducting plate 210 is formed in a triangular shape, including a center pillar surrounded by three side planes 214 and three side planes 214 separated from the center pillars by three heat conducting partitions 212. In this embodiment, the metal cap 240 is correspondingly provided with three notches to snap at the junction of the three side faces 214 of the heat conducting plate 210. The structure of the heat sink 250 is substantially the same as that of the first embodiment. In this embodiment, since one LED chip light source is added, a LED lamp having a large power can be obtained.

FIG. 8 is a perspective view of an LED reflector lamp according to a third embodiment of the present invention. The structure of the embodiment is basically the same as that of the first embodiment. The main difference is that the number of the light source panels 320 of the embodiment is four, and the number of corresponding LED light sources 360 is also four; the heat conducting board 310 includes four The side planes 314 enclose a central column of a quadrilateral shape, and the four light source panels 320 are respectively fixed to the four side planes 314. In the present embodiment, the metal cap 340 is correspondingly provided with four notches to be fastened to the joints of the four side faces 314 of the heat conducting plate 310. Compared with the second embodiment, this embodiment adds an LED light source, so that the power of the LED reflector lamp can be made larger.

9 to 12 show an LED reflector lamp 400 as a fourth preferred embodiment of the present invention. The LED reflector lamp 400 of the present embodiment has substantially the same structure as the first embodiment, and includes two LED light sources 460, two light source panels 420, a heat conducting plate 410, a heat sink 450, and a control circuit for controlling the LED light source.

The main difference between this embodiment and the first embodiment described above is that the reflector 430 of the present embodiment is composed of two semi-reflectors 431, 432 having the same shape and the same size. The two semi-reflectors 431, 432 are combined to form a horn shape. The two semi-reflectors 431, 432 are symmetrically disposed along a central vertical axis and are formed with an open slot 434. The opening groove 434 is shaped and sized such that the heat conducting plate 410 to which the LED light source 460 and the light source panel 420 are attached is inserted into the opening groove 434 as shown in FIG.

The LED reflector lamp 400 of the present embodiment is characterized in that the reflective inner surface of the semi-reflectors 431, 432 is a paraboloid formed by a parabola extension, and the center points of the two LED light sources 460 are respectively located in the two semi-reflectors. The focus of the parabolic parabola. In other words, as shown in FIGS. 12(A) and 12(B), the focal points of the paraboloids of the two semi-reflectors 431, 432 coincide with the center points of the two LED light sources 460, respectively. Such a design allows the light emitted by the LED to be reflected by the inner paraboloid of the semi-reflector to obtain higher light efficiency and better concentrating. In general, the luminous flux of the LED reflector lamp of the present embodiment can be increased by 5%-20% compared to existing LED lamps.

The inner reflective surface of the semi-reflective bodies 431, 432 is a smooth paraboloid, and the bright reflective material can be plated to further improve the light efficiency. Of course, the inner reflective surface of the semi-reflectors 431, 432 can also be of any shape that is capable of producing a concentrating effect, as will be apparent to those skilled in the art. According to the invention, the light source panel fixed with the LED light source is in close contact with the heat conducting plate, and the heat conducting plate forms a heat conduction connection with the heat sink, thereby forming a good light source panel-heat conducting plate-heat sink heat conduction and heat dissipation path. The heat emitted by the LED light source is quickly dissipated through the heat dissipation path, which reduces the temperature of the LED light source, thereby effectively solving the heat dissipation problem of the LED lamp. In addition, the reflector has an opening, which is more conducive to heat dissipation. Since the LED light source is mounted at a central position of the reflector in a manner parallel to the central vertical axis of the reflector, the light emitted by the LED can be refracted through the inner surface of the reflector to form a good condensing property. When the center point of the LED light source is designed to coincide with the focus of the parabola of the inner paraboloid of the reflector, the LED reflector lamp of the present invention has better condensing power and higher luminous flux. In addition, the number of LED light sources and light source panels can be increased by merely changing the design of the LED heat conducting plate, so the present invention can be made into a series of high power LED reflecting lamps.

When the LED light source is disposed closer to the bottom of the reflector, the light emitted by the LED light source has a small angle of refraction; when the LED light source is disposed at a reflective opening closer to the reflector, the light emitted by the LED light source has a larger angle of refraction. In this way, the illumination angle of the LED reflector lamp can be adjusted to suit a wider range of applications. The number of LED light sources can be more than two, such as three or four, or even more, so that it can be made into a reflector lamp of higher power, which is suitable for a wider range of fields.

Therefore, the present invention provides an LED reflector lamp, which not only effectively solves the heat dissipation problem of the high power LED, but also greatly improves the luminous flux and luminous efficiency of the LED.

While several preferred embodiments of the present invention have been described in conjunction with the drawings, the invention should not be construed Many modifications and variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the inventions. The scope of the claimed invention.

60. . . LED light source

20. . . Light source panel

10. . . Thermal plate

12. . . gap

14. . . screw hole

22, 24. . . screw hole

30. . . Reflective cup

32. . . Reflected inner surface

34. . . Passage

36. . . The outer surface

40. . . Metal cap

42. . . gap

50. . . heat sink

52. . . heat sink

54. . . Rib

100. . . Reflector

210. . . Thermal plate

212. . . Thermal plate

214. . . Side plane

220. . . Light source panel

240. . . Metal cap

250. . . heat sink

260. . . LED light source

310. . . Thermal plate

314. . . Side plane

320. . . Light source panel

340. . . Metal cap

360. . . LED light source

400. . . LED reflector light

410. . . Thermal plate

420. . . Light source panel

430. . . Reflective cup

431, 432. . . Semi-reflector

434. . . Open slot

450. . . heat sink

460. . . LED light source

Figure 1 is a top plan view of an LED lamp of the prior art.

Figure 2 is a front elevational view of the LED luminaire shown in Figure 1.

Fig. 3 is a top perspective view showing the LED reflector lamp of the first embodiment of the present invention, wherein the LED reflector lamp has two light source panels.

Fig. 4 is a perspective view showing the bottom of the LED reflector lamp shown in Fig. 3.

Fig. 5 is a perspective exploded bottom view of the LED reflector lamp shown in Fig. 3.

Fig. 6 is a perspective exploded plan view showing the LED reflector lamp shown in Fig. 3.

Fig. 7 is a top perspective view showing an LED reflector lamp according to a second embodiment of the present invention, wherein the LED reflector lamp has three light source panels.

Fig. 8 is a top perspective view showing an LED reflector lamp according to a third embodiment of the present invention, wherein the LED reflector lamp has four light source panels.

FIG. 9 is a top perspective view of a LED reflector lamp according to a fourth embodiment of the present invention, wherein the reflector of the LED reflector lamp is composed of two semi-reflectors symmetrically disposed.

Fig. 10 is a perspective exploded bottom view of the LED reflector lamp shown in Fig. 9.

Fig. 11 is a perspective exploded plan view showing the LED reflector lamp shown in Fig. 9.

Fig. 12(A) and Fig. 12(B) are cross-sectional views showing the central vertical axis of the LED reflector lamp shown in Fig. 9.

20. . . Light source panel

10. . . Thermal plate

30. . . Reflective cup

40. . . Metal cap

50. . . heat sink

100. . . Reflector

Claims (22)

An LED reflector lamp comprising a control circuit of the LED reflector lamp, wherein the LED reflector lamp further comprises: at least two LED light sources, wherein the LED light source is controlled by the control circuit; at least two light source panels, The at least two LED light sources are respectively fixed on the at least two light source panels; at least one heat conducting plate, wherein the at least two light source panels are respectively fixed to the at least one heat conducting plate in a heat conductive manner; the reflective cup, The reflector has a reflective inner surface, a reflective opening formed by the reflective inner surface edge, and a groove formed at the bottom of the reflector, and the heat conductive plate to which the LED light source and the light source panel are fixed is reflected by the light a groove at the bottom of the cup is inserted into the interior of the reflector such that the LED source is parallel to a central vertical axis of the reflector; and a heat sink having a cavity internally provided with a cavity The size and shape are designed to be combined with the reflector and at least a portion of the thermally conductive plate. The LED reflector lamp of claim 1, wherein the LED reflector lamp comprises: two LED light sources; two light source panels, wherein the two LED light sources are respectively fixed on the two light source panels; a heat conducting plate, wherein the two light source panels are respectively fixed on both sides of the heat conducting plate in a heat conductive manner; wherein the heat sink is annular, and an inner surface thereof is closely adhered to an outer surface of the reflective cup together. The LED reflector lamp of claim 1, wherein the LED reflector lamp further comprises a metal cap disposed on a central vertical axis of the reflector, and at least two opposite sidewalls are provided. A notch matching the thickness of the heat conducting plate causes the heat conducting plate to be snapped into the notch. The LED reflector lamp of claim 1, wherein the reflector is composed of two symmetrical semi-reflectors, the semi-reflectors being symmetrically disposed along a central vertical axis; and the reflection of the semi-reflectors The surface is a paraboloid formed by a parabolic extension, wherein the center points of the two LED light sources are respectively located at the focus of the parabola of the paraboloids of the two semi-reflectors. The LED reflector lamp of any one of claims 1 to 4, wherein the LED light source is fixed to the light source panel by dispensing or mechanical means. The LED reflector lamp of any one of claims 1 to 4, wherein the light source panel is fixed to the heat conducting plate in the following manner: a fastener, a dispensing or a viscous heat-dissipating oil. The LED reflector lamp of any one of claims 1 to 4, wherein the light source panel and the heat conducting plate are coated with a heat dissipating oil layer. The LED reflector lamp of any one of claims 1 to 4, wherein the reflector is designed in a horn shape. The LED reflector lamp of any one of claims 1 to 4, wherein the reflective inner surface of the reflector is plated with a bright reflective material. The LED reflector lamp of any one of claims 1 to 4, wherein the heat sink is a hollow cylinder, the inner surface of which is designed to be curved in cooperation with the reflector, so as to be in close contact with The outer surface of the reflector. The LED reflector lamp of any one of claims 1 to 4, wherein the outer surface of the heat sink is provided with a plurality of fins arranged in parallel and spaced apart from a central vertical axis of the reflector. The LED reflector lamp of any one of claims 1 to 4, wherein the heat sink has one end provided with a plurality of ribs extending from a center of the heat sink to a side wall. The LED reflector lamp of any one of claims 1 to 3, wherein the LED light source is disposed near a bottom of the reflector. The LED reflector lamp of any one of claims 1 to 3, wherein the LED light source is disposed adjacent to the reflector opening. The LED reflector lamp of any one of claims 1 to 4, wherein the heat conducting plate is disposed such that its central vertical axis overlaps with a central vertical axis of the reflector, and the center of the heat conducting plate is vertical A tangent to the intersection of the axis and the arc of the reflector is perpendicular to a central vertical axis of the heat conducting plate. The LED reflector lamp of any one of claims 1 to 4, wherein the heat conducting plate is integrally formed with the heat sink. The LED reflector lamp of any one of claims 1 to 4, wherein the heat conducting plate is integrally formed with the reflector. The LED reflector lamp of any one of claims 1 to 4, wherein the heat sink is integrally formed with the reflector. The LED reflector lamp of any one of claims 1 to 4, wherein the heat conducting plate, the heat sink and the reflector are integrally formed. The LED reflector lamp of any one of claims 1 to 4, wherein the light source panel, the heat conducting plate, the heat sink and the reflector are made of a thermally conductive material. The LED reflector lamp of claim 20, wherein the heat conductive material is aluminum, aluminum alloy or ceramic. The LED reflector lamp according to any one of claims 1 to 4, wherein the reflector opening is provided with a reflector cover.