WO2015180307A1

WO2015180307A1 - Small-and-medium-diameter high-luminous-intensity led annular-irradiation signal lamp

Info

Publication number: WO2015180307A1
Application number: PCT/CN2014/086913
Authority: WO
Inventors: 张文虎; 郑秋华
Original assignee: 上海开腾信号设备有限公司
Priority date: 2014-05-28
Filing date: 2014-09-19
Publication date: 2015-12-03
Also published as: CN203892962U

Abstract

A small-and-medium diameter high-luminous-intensity LED annular-irradiation signal lamp. The lamp comprises: a multi-surface cylindrical heat dissipation body, an LED luminous unit being fixed to each outer plane of the multi-surface cylindrical heat dissipation body; an annular parabolic reflector component disposed on the periphery of the multi-surface cylindrical heat dissipation body, the annular parabolic reflector component being formed by multiple straight-strip-shaped parabolic reflector units, and the reflection surface of each straight-strip-shaped parabolic reflector unit reflecting light scattered by the corresponding LED luminous unit; and an annular convex lens disposed in an annular space defined by the reflection surface of the annular parabolic reflector component, light scattered by all the LED luminous units and light reflected by the annular parabolic reflector component being converged in the vertical direction and then diffused and emitted in the horizontal direction in an annular mode by the annular convex lens.

Description

Medium and small diameter high light intensity LED ring signal light

Technical field

The utility model relates to the field of LED lamps, in particular to a medium and small diameter high light intensity LED ring signal lamp.

Background technique

With the continuous development of light-emitting diode (LED) chip technology and the diversification of light-emitting diode (LED) package styles, LEDs are increasingly used in various new types of lamps, most of which are LED car lights and traffic. Signal lights, which are light-emitting diodes with a small viewing angle but high output intensity on the central axis, constitute a directional light signal. LED light-emitting diodes have also been used in the products of the ring light signal in recent years. For example, people arrange the light-emitting diodes directly on the circumferential surface of the lamp, or arrange the lights in a polygonal form in a planar light array unit of the smallest possible size. On the circumferential surface of the device (for example, Chinese Patent Publication No. CN202501238U discloses a 360° three-dimensional multi-group multi-faceted LED lamp), so that the light emitted by the LED or LED light array is diverged in a 360° direction to satisfy various rings. The use of spotlights requires, and the application of the form of the light intensity output characteristic curve in the circumferential direction tends to be gear-shaped, resulting in a regular dark area of the lamp in the circumferential direction, uniformity and continuity of light. Very poor. In order to meet the requirements of the output light intensity at each point in the circumferential direction, it is often necessary to configure a large number of LEDs, and the structure is loose and the manufacturing process is also poor. Therefore, the commonly used ring signal lamps rarely have the use of LEDs as light sources, such as the signal lights of the roof. The ring warning lights can pass the test of European ECE R65 regulations, while the traditional use of incandescent lamps with surround rotating mirrors or pulsed xenon lamps The type of warning light has high relative energy consumption, low luminous efficiency, complicated structure, high failure rate and short life.

To this end, the inventor of the utility model submitted a utility model patent application entitled "Multi-purpose LED ring signal lamp" to the then Chinese Patent Office on December 28, 2000. The Chinese patent right is granted after the investigation, and its authorization announcement number is CN2462230Y. The multi-purpose LED ring signal lamp proposed by the inventor of the present invention includes a light source assembly, a refractor, a lamp cover and a lamp holder. The light source component is composed of a light-emitting diode fixed on a printed circuit board, a plano-convex converging lens, and a parabolic mirror. The refractor mirror is a conical refractor, and the cone tip is placed in a direction in which the light source component is directed to emit light, and the light is 360° in the circumferential direction. Diffusion emission. The utility model patent adopts the principle of two light collection technologies, and collects the light emitted by the LED chip to the maximum extent and performs directional emission according to the use requirements. However, the light of the utility model which is diffused and emitted by the refractor mirror in the circumferential 360° direction cannot be effectively compressed in the vertical direction in an effective annular region, and some of the light is scattered upward or downward, which cannot be effectively obtained. use.

In order to improve the light intensity on the annular light strip of the ring-shaped spotlight, the applicant of the present invention submitted a "Circular Light" of the name "Light Emitting Diode" to the State Intellectual Property Office of China on July 7, 2006. Authorized, its authorization announcement number is CN200982557Y, the utility model patent mainly comprises an LED light source assembly, a mirror, a support tube, an upper cover, a lower cover, a controller and a base, characterized in that the upper and lower light source components are A Fresnel lens is arranged thereon, and the light-emitting diodes disposed on the light source plate and the corresponding Fresnel lens are arranged in an annular shape, and the upper and lower chassis are fixed by a lock nut, and the mirror is composed of two truncated cones and passes through The spline is fixed on the support tube, the rounded edge of the mirror is a circular curved surface, and the controller is disposed at the bottom of the base. The patent is actually composed of two sets of multi-purpose LED ring signal lamps disclosed in CN2462230Y, which still cannot solve the problems of the multi-purpose LED ring signal disclosed in CN2462230Y.

In addition, in order to further improve the light intensity on the annular light strip of the ring-shaped spotlight, the applicant of the present invention also proposed to the Chinese Intellectual Property Office on March 13, 2009 that the invention name is "a high-power LED ring light source component and application. The ring light of the component is applied one by one, and the utility model has been authorized, and the authorization announcement number is CN201568897U. The utility model patent includes a circular metal substrate for heat dissipation and uniformly distributed on the circular metal substrate. a plurality of high-power LED light-emitting diodes on the upper or lower plane and a parabolic refractor corresponding to each of the high-power LED light-emitting diodes, the high-power LED light-emitting diode The pole tube is located at a focus position of the parabolic mirror, and the upward or downward scattered light is horizontally emitted by the refraction of the parabolic mirror. Although the parabolic refractor in this patent corresponding to each high power LED light emitting diode is capable of emitting upward or downward scattered light from a high power LED light emitting diode at a focus position of the parabolic refractor through a parabolic refractor. However, this patent still has problems that cannot solve the multi-purpose LED ring signal disclosed in CN2462230Y.

To this end, the inventor of the utility model submitted a patent application for the invention of "fluorescent-like LED lighting monomer and use" to the Chinese Intellectual Property Office on July 4, 2010, and its authorization announcement number is CN101788111B. A space with a radial convergence is disposed in a space surrounded by the paraboloids, and a portion of the light emitted by the plurality of LED illuminators is radially concentrated but axially diffused. However, when the patented technology is used to prepare a circular spotlight such as a beacon light or a warning light, as shown in FIG. 1, since the heat radiating body and the convex lens which are reflective in each type of fluorescent LED lighting unit are straight strip structures, Therefore, when they are arranged in the circumferential direction, they are arranged in a polygonal shape, and a

triangular notch

3, 3a is formed between the adjacent reflecting heat radiating bodies 1, 1a and the

convex lenses

2, 2a, and the high-power LED light-emitting

diodes

4, 4a are scattered. When the

light rays

5, 5a pass through the

triangular notches

3, 3a, they cannot be refracted by the reflecting surface of any one of the heat radiating bodies 1, 1a and are radially concentrated by any one of the

convex lenses

2, 2a, so that some of the light rays are still unable to be partially condensed. Being used effectively. Although in large-diameter ring-light applications, it is possible to compensate for the light intensity caused by the

light rays

5, 5a that are not effectively utilized by increasing the number of high-power LED light-emitting diodes and the heat-dissipating heat-dissipating body and straight-line convex lens. Loss, but in some ringlights with a diameter of less than 100mm, such as warning lights used in police motorcycles and warning lights used in some equipment, due to the size limitation, more high-power LED light-emitting diodes and heat sinks cannot be installed, and Straight strip convex lenses and reflective bowls, these problems caused by the loss of light intensity caused by the effectively utilized

light

5, 5a are particularly prominent, so that these small and medium ring lights less than 100mm in diameter cannot meet the ECE R65 warning light. Standard requirements for regulations.

Utility model content

The purpose of the utility model is to provide a small and medium-diameter high-intensity LED ringing signal lamp for the defects or defects of the existing LED ring-shaped spotlights, especially the small-and medium-sized ring-shaped spotlights, so that the medium-small-diameter high-intensity LED ringing signal lamp It can meet the standard requirements of the European standard ECE R65 regulations.

The technical problem solved by the utility model can be implemented by the following technical solutions:

A medium and small diameter high light intensity LED ring signal lamp, comprising:

a multi-faceted cylindrical heat dissipating body, wherein an LED lighting unit is respectively fixed on each outer plane of the multi-faceted cylindrical heat dissipating body;

An annular reflective bowl member disposed on a periphery of the multi-faceted cylindrical heat dissipating body, wherein the annular reflective bowl member is composed of a plurality of sets of straight strip-shaped reflective bowl units, and the reflective surface of each of the strip-shaped reflective bowl units will correspond to the LED The light scattered by the light emitting unit is reflected out;

An annular convex lens disposed in an annular space surrounded by the reflective surface of the annular reflective bowl member, the annular convex lens converges the light scattered by all the LED light emitting units and the light reflected by the annular reflective bowl member in a vertical direction. The ring is emitted in a diffuse manner in the horizontal direction.

In order to facilitate the manufacture and installation, in a preferred embodiment of the present invention, the annular reflective bowl member comprises upper and lower annular semi-reflective bowl members, and the upper and lower annular semi-reflective bowl members are all of the same number of upper and lower portions. The straight strip-shaped semi-reflective bowls are connected, and each of the upper straight-shaped semi-reflective bowls and the corresponding lower straight-shaped semi-reflective bowls form a straight strip-shaped reflective bowl unit.

In a preferred embodiment of the invention, the annular convex lens surrounds the periphery of the LED lighting unit.

In a preferred embodiment of the present invention, the upper and lower straight semi-reflective bowls of the upper and lower annular semi-reflective bowl members are mounted on the outer plane of the corresponding multi-faceted cylindrical heat sink and are respectively located at the Upper and lower end faces of the annular convex lens are connected to the upper and lower annular semi-reflective bowl members respectively above and below the corresponding LED lighting unit.

In a preferred embodiment of the present invention, the annular convex lens is a circular concentrating Fresnel mirror.

In a preferred embodiment of the present invention, the bottom of the multi-faceted cylindrical heat sink has a lamp holder, and a pressure plate is mounted on the top of the multi-faceted cylindrical heat sink by a fastener, the pressure plate and the lamp holder Cooperating to collectively limit the position of the annular reflective bowl member in the axial direction of the multi-faceted cylindrical heat sink.

In a preferred embodiment of the present invention, the LED lighting unit comprises a straight strip LED substrate and a plurality of LED illuminators disposed on the straight strip LED substrate, the straight strip LED substrate passing the fastener or conducting heat The glue is fixed to the multi-faceted cylindrical heat sink.

In a preferred embodiment of the present invention, the light color of the LED illuminator is white. Without changing the structure and principle of the present invention, other red, green or blue LED illuminators may be directly used according to the needs of different signal light colors, or a colored annular convex lens and a colored circular light distribution lamp cover may be adopted. The color filter luminaire is converted as a color filter to filter the white LED illuminator.

In a preferred embodiment of the present invention, the present invention further includes an annular light distribution lamp cover, the annular light distribution lamp cover, the multi-faceted cylindrical heat dissipation body, an LED lighting unit mounted on the multi-faceted cylindrical heat dissipation body, and the An annular reflective bowl member and the annular convex lens cover are disposed therein, and a bottom of the annular light distribution cover is fixed to the socket.

In a preferred embodiment of the present invention, the annular light distribution lamp cover is a transparent lamp cover or a colored lamp cover, or various straight or irregular refraction lines with astigmatism are distributed on the outer surface of the annular light distribution lamp cover. To improve the uniformity of the distribution of the light.

By adopting the above technical solution, the utility model utilizes the annular reflective bowl member to converge the light emitted by all the LED light-emitting units in the vertical direction and reflect the horizontal direction of the ring, and simultaneously adopts the annular convex lens to all the LED light-emitting units. Part of the emitted light is concentrated in the vertical direction and diffused in the horizontal direction, which solves the problem that some of the existing ring-shaped spotlights are still not effectively utilized, so that the light utilization rate is high under the same power. For other existing ring spotlights, and especially for small and medium-sized warning lights with a diameter of less than 100mm, the light efficiency is higher, so that it is fully satisfied. ECE R65 warning light regulations.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic view showing the structure of an annular spotlight prepared by using the existing Chinese Patent Publication No. CN101788111B.

2 is an exploded view of the structure of an embodiment of the present invention.

3 is a radial cross-sectional view of a central portion of a multi-faceted cylindrical heat sink according to an embodiment of the present invention.

detailed description

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

Referring to FIG. 2 and FIG. 3, a small and medium-diameter high-intensity LED ring signal lamp includes a lamp holder 100, a multi-faceted cylindrical heat sink 200, a ring-shaped reflective bowl member 400, and an annular convex lens 500 having a vertical convergence effect on light source light, multi-faceted The cylindrical heat dissipating body 200 is fixed on the lamp holder 100. The multi-faceted cylindrical heat dissipating body 200 in this embodiment is a hexagonal heat dissipating cylinder, and may of course be an octagonal heat dissipating cylinder, a twelve-sided heat dissipating cylinder, and the like. The annular convex lens 500 is an annular concentrated Fresnel lens.

Each of the outer planes 210 of the multi-faceted cylindrical heat sink 200 is fixed with an LED lighting unit. In the embodiment, the LED lighting unit comprises a straight strip LED substrate 300 and a plurality of LED illuminants 310 disposed on the strip LED substrate 300. Each of the strip-shaped LED substrates 300 is respectively fixed to the outer plane 210 corresponding to the multi-faceted cylindrical heat sink 200 by screws 320. The longitudinal direction of the strip-shaped LED substrate 300 extends along the axial direction of the multi-sided cylindrical heat sink 200, and the straight strip LED The metal bottom surface of the substrate 300 is coated with a thermal conductive adhesive. The straight strip LED substrate 300 is fixed on the outer surface 210 of the multi-sided cylindrical heat sink 200 by the contact of the thermal conductive adhesive to effectively dissipate the working heat of each of the straight strip LED substrates 300, and the straight strip LED substrate 300 and the multi-sided column heat dissipation The contact area of the outer plane 210 of the body 200 is larger than the contact area of the LED substrate of other shapes, which improves the heat dissipation efficiency, and the LED substrate of other shapes is also inconvenient to produce. The LED illuminators 310 are mounted on the strip-shaped LED substrate 300 in the width direction. The number and distribution of the LED illuminators 310 may be determined according to different configurations of the use of the lamp energy. In order to facilitate the route, a wire hole 211 is formed in one of the outer planes 210.

The annular reflective bowl member 400 is sleeved on the periphery of the multi-faceted cylindrical heat sink 200. To facilitate the fixing and mounting of the annular convex lens 500, the annular reflective bowl 400 includes upper and lower annular

semi-reflective bowl members

400a, 400b, upper and lower annular semi-reflective bowls. The

members

400a, 400b are each connected by the same number of upper and lower straight semi-reflective bowls 400aa, 400bb, and each upper straight semi-reflective bowl 400aa and the corresponding lower straight semi-reflective bowl 400bb form a straight strip. Reflective bowl unit 401.

The inner walls 410aa, 410bb of the upper straight-shaped semi-reflective bowl 400aa and the lower straight-shaped semi-reflective bowl 400bb are respectively provided with receiving

grooves

411a, 411b through which the straight-shaped LED substrate 300 can be received and accommodated, and each receiving groove 411a, The width and depth of the 411b are adapted to the width and thickness of the straight strip LED substrate 300. The upper and lower straight semi-reflective bowls 400aa, 400bb are mounted on the outer plane 210 of the corresponding multi-sided cylindrical heat sink 200 and are respectively located The upper and lower sides of the corresponding LED light-emitting unit can ensure that all the light emitted from the LED illuminator 310 on the straight-line LED substrate 300 can be accurately mounted after the upper and lower straight semi-reflective bowls 400aa and 400bb are accurately mounted. The

reflective surfaces

401a and 401b of the lower straight semi-reflective bowls 400aa and 400bb are horizontally reflected.

Pin holes

421a and 421b are formed at the joints of the

reflective surfaces

401a and 401b of the adjacent upper and lower straight semi-reflective bowls 400aa and 400bb, and the upper and lower ends of the annular convex lens 500 are respectively provided with

pin holes

421a and 421b. The annular pin 510 can be fixed in the annular space enclosed by the reflective surface of the annular reflective bowl member 400. The annular convex lens 500 is located in front of all the LED illuminators 310 and all the ring-shaped cylindrical heat sinks are arranged. Part of the light emitted by the 200-mounted LED illuminator 310 The convergence in the vertical direction is emitted as a diffusion in the horizontal direction of the ring. After the annular convex lens 500 and the upper and lower annular

semi-reflective bowl members

400a, 400b are assembled on the periphery of the multi-sided cylindrical heat sink 200, a pressing plate 220 is further mounted on the top of the multi-face cylindrical heat dissipating body 200 via the fastener 221, and the pressing plate 220 is The socket 100 cooperates to collectively limit the position of the annular reflector member 400 in the axial direction of the multi-faceted cylindrical heat sink 200.

The utility model can also be configured with an annular light distribution lamp cover 600. The annular light distribution lamp cover 600 has a multi-faceted cylindrical heat dissipation body 200, an LED illumination unit mounted on the multi-faceted cylindrical heat dissipation body 200, an annular reflective bowl member 400, and an annular convex lens 500 cover. In it. A buckle 610 is disposed on the bottom of the annular light distribution cover 600. The socket 100 is provided with a card slot 110 for use with the buckle 610. The annular light distribution cover 600 is assembled on the socket 100 by the buckle 610. The light color of the LED illuminator 310 in this embodiment is white, and its luminous flux can reach 300 lm, which is several times that of other light color LEDs such as red, blue, yellow, green, etc. If it is necessary to change the color of the signal light, only use colored The annular convex lens 500 and the annular light distribution cover 600 can achieve the filtering of colored light. The annular light distribution lamp cover 600 in this embodiment may also be a transparent lamp cover or a straight or irregular refraction pattern with various astigmatisms distributed on the outer surface of the annular light distribution lamp cover 600, or a colored annular light distribution lamp cover as a color filter pair. The method of filtering the color of the white LED illuminant to realize the transformation of the colored signal luminaire, and selecting a suitable annular illuminating lamp cover 600 according to the specific use requirements.

When mounting, it is only necessary to mount the lower annular semi-reflective bowl member 400b on the lower portion of the multi-faceted cylindrical heat sink 200, and after attaching the LED lighting unit, insert the lower end pin 510 of the annular convex lens 500 into the pin hole of the lower annular semi-reflective bowl member 400b. In the 421b, the upper annular semi-reflective bowl member 400a is further mounted, the pin hole 421a of the upper annular semi-reflective bowl member 400a is engaged with the upper end pin 510 of the annular convex lens 500, and then the pressing plate 220 is attached, and finally the annular light distribution lamp cover is attached. 600 can be.

The working principle of the utility model is as follows:

The utility model utilizes the

reflective surfaces

401a, 401b of the annular reflective bowl member 400 to refract all the light levels emitted by the LED illuminators 310, and simultaneously uses the annular convex lens 500 to vertically illuminate part of the light emitted by all of the LED illuminators 310. Convergence but spread in the horizontal direction Shooting out solves the problem that some of the existing ring spotlights are still not effectively utilized, so that the light utilization rate is higher than other existing ring lights under the same power, and especially for diameters less than 100mm The small and medium-sized warning lights have higher luminous efficiency, which fully meets the ECE R65 warning light regulations.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and the embodiments described in the foregoing description and the description are only for explaining the principles of the present invention, without departing from the spirit and scope of the present invention. There are various changes and modifications in the novel types which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

A medium and small diameter high light intensity LED ring signal lamp, characterized in that:

a multi-faceted cylindrical heat dissipating body, wherein an LED lighting unit is respectively fixed on each outer plane of the multi-faceted cylindrical heat dissipating body;

An annular reflective bowl member disposed on a periphery of the multi-faceted cylindrical heat dissipating body, wherein the annular reflective bowl member is composed of a plurality of sets of straight strip-shaped reflective bowl units, and the reflective surface of each of the strip-shaped reflective bowl units will correspond to the LED The light scattered by the light emitting unit is reflected out;

An annular convex lens disposed in an annular space enclosed by a reflective surface of the annular reflective bowl member, the annular convex lens converges light scattered by all LED light emitting units and light reflected by the annular reflective bowl member in a vertical direction However, the ring is emitted in a horizontal direction and spread out.
A medium-small-diameter high-intensity LED ring light signal lamp as claimed in claim 1, wherein said annular reflective bowl member comprises upper and lower annular semi-reflective bowl members, and said upper and lower annular semi-reflective bowl members are all identical. A plurality of upper and lower straight semi-reflective bowls are connected, and each of the upper straight semi-reflective bowls and the corresponding lower straight semi-reflective bowl form a straight strip-shaped reflective bowl unit.
A medium-to-small-diameter high-intensity LED ring light signal according to claim 2, wherein said annular convex lens surrounds a periphery of said LED lighting unit.
A medium-small-diameter high-intensity LED ring light signal lamp as claimed in claim 3, wherein the upper and lower straight-shaped semi-reflective bowls of the upper and lower annular semi-reflective bowl members are mounted on the corresponding multi-faceted cylindrical shape The upper and lower end faces of the annular convex lens are respectively connected to the upper and lower annular semi-reflective bowl members on the outer plane of the heat dissipating body and respectively located above and below the corresponding LED lighting unit.
A medium-to-small-diameter high-intensity LED ring signal lamp according to any one of claims 1 to 4, wherein the annular convex lens is an annular concentrating Fresnel lens.
A medium-small-diameter high-intensity LED ring signal lamp as claimed in claim 5, wherein the bottom of the multi-faceted cylindrical heat sink has a lamp holder mounted on the top of the multi-faceted cylindrical heat sink by a fastener a pressure plate, the pressure plate cooperates with the lamp holder to limit the annular reflective bowl member The position of the multi-faceted cylindrical heat sink in the axial direction.
A medium-to-small-diameter high-intensity LED ring signal lamp as claimed in claim 6, wherein the LED lighting unit comprises a straight strip-shaped LED substrate and a plurality of LED illuminators disposed on the strip-shaped LED substrate, The straight strip LED substrate is fixed to the multi-faceted cylindrical heat sink by a fastener or a thermal paste.
A medium-to-small-diameter high-intensity LED ring signal lamp as claimed in claim 7, wherein the LED illuminant has a white color.
A medium-to-small-diameter high-intensity LED ring signal lamp as claimed in claim 7, further comprising an annular light distribution lamp cover, wherein said annular light distribution lamp cover said multi-faceted cylindrical heat sink is mounted on said multi-faceted column The LED lighting unit on the shaped heat sink, the annular reflective bowl member and the annular convex lens cover are disposed therein, and the bottom of the annular light distribution lamp cover is fixed on the lamp holder.
A medium-to-small-diameter high-intensity LED ring signal lamp as claimed in claim 9, wherein the annular light distribution lamp cover is a transparent lamp cover or a colored lamp cover, or various types are distributed on the outer surface of the annular light distribution lamp cover. Straight or irregular refraction lines with astigmatism.