CN103292288B - LED illuminating lamp - Google Patents

Abstract

The invention discloses an LED illuminating lamp. A heat dissipation shell of the LED illuminating lamp comprises a hollow annular fin set, a first port and a second port, wherein the hollow annular fin set is formed by fins arranged at intervals, and the first port and the second port extend from the two ends of the heat dissipation shell respectively; a first annular guide rail in a lamp holder installment seat and a second annular guide rail in a lampshade installment seat are connected with the first port and the second port respectively in a sleeved mode through a first ball and a second ball to ensure that the heat dissipation shell rotates along the lamp holder installment seat and the lampshade installment seat. In the working process of the LED illuminating lamp, air inside the heat dissipation shell is heated by an LED chip, hot air rises and can drive the heat dissipation shell set to rotate along the first annular guide rail and the second annular rail through the air heat convection principle, the flow speed of the air is increased, natural heat dissipation is combined with forced air cooling, and therefore the heat dissipation effect is improved. The LED light source is a multi-pyramid integrated light source, and is large in luminous flux and capable of achieving all-dimensional illumination.

Description

A kind of LED lighting

technical field

The invention belongs to the technical field of LED lighting, and in particular relates to an LED lighting lamp.

Background technique

LED (full name in English: Light Emitting Diode, translated as: Light Emitting Diode) is a solid semiconductor device that can directly convert electrical energy into light energy. As a light source, LED has the characteristics of short lighting delay, wide color temperature range, high luminous intensity, high luminous efficiency, and good shock resistance.

The LED lamp with LED as the light source has a domestic standard life span of 60,000 to 100,000 hours, which is much higher than the 8,000 hours of ordinary energy-saving lamps. Therefore, LED lamps, especially high-power LED lamps, have begun to appear in various occasions as substitutes for incandescent lamps and energy-saving lamps.

When the LED is on, except for the electricity consumed as visible light, the other electricity is converted into heat energy. However, due to the small package area of the LED, the heat dissipation through convection and radiation is less, thus generating extremely high heat in a very small volume. The heat resistance of LED is very poor, and a large amount of heat accumulation will cause the chip to deteriorate, which seriously affects the luminous performance and service life of the LED lamp. Therefore, good heat dissipation performance is the guarantee of the excellent performance of the LED lamp.

For commercialized LEDs, since the primary heat dissipation design of the chip package has been fixed, it cannot be changed during use. Therefore, when used as a light source, it is necessary to design the secondary heat dissipation scheme according to the actual working conditions and working conditions on site.

The design of the secondary heat dissipation scheme in the prior art mainly adopts two kinds of natural heat dissipation by the LED lamp housing or heat conducting sheet and heat dissipation by using a heat sink. The heat dissipation effect of the natural heat dissipation scheme of the shell is limited, and it is mainly suitable for low-power LED lights. The heat dissipation effect of LED lamps using radiators is better. The radiator structures suitable for LED lamps include fans, heat pipes, vapor chambers, micro-channel heat sinks, and semiconductor cooling radiators.

The heat pipes, vapor chambers, microchannel heat sinks, and semiconductor refrigeration radiators in the above secondary heat dissipation schemes have complex manufacturing processes and high precision requirements, and are rarely used in LED lamps. In the prior art, the LED lamp housing or heat conduction The natural heat dissipation of the chip and the heat dissipation of the fan are the main ones.

Chinese patent CN201401764Y discloses a high-power LED lamp structure with a fan, including a high-power LED illuminant, a metal substrate for fixing the high-power LED illuminant, and a radiator connected to the metal substrate, the metal substrate is arranged on the radiator The front end of the heat sink is a tubular body with a hollow lumen, at least one heat dissipation air outlet is arranged on the inner wall of the cavity, and the fan is fixed at the center of the tail end of the heat sink. Wherein the outer ring of the radiator is provided with several cooling fins. In the LED lamp disclosed in this patent, the heat conduction structure and the heat dissipation structure are arranged separately, the number of components is large, and the structure is complicated; firstly, a metal substrate and a radiator connected to the metal substrate are used to export the heat of the LED illuminant, in order to increase the heat export area , the designed cooling body with cavity fin structure has a large volume, complex structure and manufacturing process; and the fan arranged at the tail end of the cooling body is used to force air cooling to dissipate the heat. Moreover, the heat dissipation structure is equipped with a fan, which consumes a lot of power, and is only suitable for LED lamps with high-power LEDs. If it is used in medium and low-power LED lamps, the luminous efficiency will be reduced to a certain extent.

Contents of the invention

Therefore, what the present invention aims to solve is the technical problem of the complex heat dissipation structure of the LED lighting lamp in the prior art, and provides an LED lighting lamp with a simple structure and good heat dissipation effect.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

An LED lighting lamp according to the present invention includes a heat dissipation shell, a lamp cap mounting seat, a lampshade mounting seat, a lamp cap fixed on the lower end of the lamp cap mounting seat through fastening components, an LED light source, and is arranged on the lampshade mounting seat. lampshade;

The heat dissipation housing includes a hollow annular fin group consisting of at least 3 fins evenly distributed on the circumference and arranged at intervals, and a first port and a second port extending from both ends of the heat dissipation housing;

The lamp cap mounting base includes a first annular guide rail and an air inlet passing through the lamp cap mounting base, the lampshade mounting base includes a second annular guide rail, the first port and the second port respectively pass through the The first ball in a circular guide rail and the second ball in the second circular guide rail are fitted with the first circular guide rail and the second circular guide rail, so that the heat dissipation housing can move along the The lamp holder mount and the lampshade mount rotate.

The blade part of the fin protrudes into the interior of the annular fin group, and the fin is arranged obliquely relative to the axis of the annular fin group.

The inner edge of the first port is provided with a motor transmission component for connecting the motor rotor.

The lampshade mounting seat further includes a light source bracket disposed on the inner edge of the second annular guide rail, and the light source bracket protrudes inwardly of the lampshade.

The light source bracket is provided with a light source installation hole for installing an LED light source.

The LED light source is a polygonal pyramid integrated light source, and LED chips are arranged on the sides of the polygonal pyramid.

The ratio of the inner diameter of the first annular guide rail to the height of the heat dissipation housing is 1:1˜1:5.

The inner diameter of the first annular guide rail is smaller than or equal to the inner diameter of the second annular guide rail.

The aspect ratio of the fins is 3:1˜11:1.

The heat dissipation housing, the lamp holder mounting seat, the lampshade mounting seat, the first ball, and the second ball are all made of metal, and the metal is preferably aluminum.

The above technical solution of the present invention has the following advantages compared with the prior art:

1. The structure of an LED lighting lamp according to the present invention is relatively simple, wherein the heat dissipation housing includes a hollow ring-shaped fin group composed of at least 3 fins equally distributed on the circumference and arranged at intervals. The first port and the second port extending from the end; the lamp base mounting seat includes a first annular guide rail, and the lampshade mounting seat includes a second annular guide rail, and the first port and the second port are passed through the first ball and the second ball respectively. It fits with the first circular guide rail and the second circular guide rail, so that the heat dissipation housing rotates along the lamp holder mounting seat and the lampshade mounting seat; the LED light source connects with the light source bracket through the The connection of the lampshade mounting base can effectively export the heat emitted by the LED light source, increasing the natural heat dissipation function. During the working process of the LED lighting lamp, the air inside the heat dissipation housing is heated by the LED light source, and the hot air rises, and the annular fin group can be pushed along the first annular guide rail and the second annular guide rail by using the principle of air thermal convection. The rotation acts as a fan, which combines the heat conduction and heat dissipation structures to enhance the heat dissipation effect, and the structure is simpler and more compact. The annular fin group is composed of at least 3 fins equally distributed on the circumference and arranged at intervals, that is, there are gaps between adjacent fins, so that the heat dissipation shell is an open structure, which is more convenient for heat dissipation .

2. In the LED lighting lamp according to the present invention, the blade part of the fin extends into the interior of the heat dissipation shell, so that the outer surface of the heat dissipation shell is a smooth curved surface; the fin is relatively The axis of the annular fin group is arranged obliquely, so that the fin group is in the shape of a turbine, which is easier to rotate under the action of air convection, and this structure makes the structure of the shell more compact, while ensuring effective heat dissipation, it reduces the size of the heat dissipation shell body volume.

3. In the LED lighting lamp of the present invention, the inner edge of the first port is provided with a motor transmission part for connecting the motor rotor. If the power of the LED chip in the LED light source is large or there are too many integrated LED chips, A motor can be installed in the lamp base mounting base, and the rotation speed of the heat dissipation shell can be accelerated through the transmission of the motor transmission part to enhance the heat dissipation effect, so that the heat dissipation shell is also suitable for high-power LED lamps and has a wide range of applications; and The size of the motor is small, which can effectively reduce the volume of the LED lighting lamp.

4. In the LED lighting lamp of the present invention, the LED light source is a polygonal pyramid integrated light source, and LED chips are arranged on the sides of the polygonal pyramid. This pyramidal light source structure effectively increases the The light output angle of the LED light source is described above; moreover, the light source bracket protrudes into the lampshade, which effectively reduces the light blocking range of the light source bracket, so that the rear end of the LED light source has a large luminous flux, realizes omnidirectional light emission, and enhances the use of Effect.

5. In the LED lighting lamp according to the present invention, the ratio of the inner diameter of the first annular guide rail to the height of the heat dissipation housing is 1:1 to 1:5, and the inner diameter of the first annular guide rail is less than or Equal to the inner diameter of the second annular guide rail, this housing structure is more convenient for air convection, making the heat dissipation housing easier to rotate.

6. In the LED lighting lamp of the present invention, the aspect ratio of the fins is 3:1 to 11:1, which effectively ensures a large heat dissipation area while ensuring the effect of air cooling and heat dissipation, and enhances the The heat dissipation performance of the shell.

7. In the LED lighting lamp according to the present invention, the heat dissipation housing, the lamp holder mounting seat, the lampshade mounting seat, the chip holder, the first ball, the second ball and other components are all It is a metal part, preferably an aluminum part, with good heat conduction effect and low raw material cost.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

Fig. 1 is a schematic structural view of an LED lighting lamp according to an embodiment of the present invention;

Fig. 2 is a top view of the lampshade mounting seat 3 in Fig. 1 after the LED light source 5 is installed;

Fig. 3 is a schematic structural view of the lampshade mounting seat 3 described in Fig. 1;

Fig. 4 is a schematic structural view of the fin 11 in Fig. 1;

Fig. 5 is a schematic structural view of the fins in other embodiments of the present invention;

The reference signs in the figure are represented as: 1-radiating shell, 11-fin, 111-fin mounting hole, 12-motor transmission part, 13-first port, 14-second port, 2-lamp holder mounting seat, 21-First ball, 22-First guide rail, 23-Air inlet, 3-Lampshade mounting seat, 31-Second ball, 32-Second guide rail, 33-Light source bracket, 34-Light source installation hole, 4-Lamp holder, 5-LED light source, 51-LED chip, 6-lampshade.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

An LED lighting lamp described in this embodiment, as shown in FIG. 1 , includes a heat dissipation housing 1, a lamp cap mounting seat 2, a lampshade mounting seat 3, and a lamp cap 4 fixed at the lower end of the lamp cap mounting seat 2 by fastening components. , the LED light source 5 , and the lampshade 6 arranged on the lampshade mounting seat 3 .

In this embodiment, the lamp cap 4 is fixed on the lower end of the lamp cap mounting seat 2 by screws. As an alternative embodiment, the lamp cap 4 can also be fixed on the lower end of the lamp cap mounting seat 2 by gluing or snapping.

In this embodiment, the lampshade 6 is fastened to one end of the lampshade mounting seat 3 through external threads. As an alternative embodiment, the lampshade 6 can also be fixed to one end of the lampshade mounting seat 3 by gluing or snapping.

In this embodiment, the heat dissipation housing 1 includes a hollow annular fin group composed of 22 fins 11 evenly distributed on the circumference and arranged at intervals, and first ports 13 extending from both ends of the heat dissipation housing 1 and the second port 14; the lamp cap mount 2 includes a first annular guide rail 22, an air inlet 23 passing through the lamp cap mount 2, the lampshade mount 3 includes a second annular guide rail 32, the first port 13, the second The two ports 14 pass through the first ball 21 arranged in the first circular guide rail 22 , the second ball 31 provided in the second circular guide rail 32 and the first circular guide rail 22 and the second circular guide rail 22 respectively. The guide rails 32 are fitted together so that the heat dissipation housing 1 can rotate along the lamp base mounting base 2 and the lampshade mounting base 3 . During the working process of the LED lighting lamp, the air inside the heat dissipation housing 1 is heated by the LED chip, and the hot air rises. Using the principle of air thermal convection, when the hot air is emitted outward, the air passing through the first ball 21 and the second ball 31 The sliding effect can push the ring-shaped fin group to rotate along the first ring-shaped guide rail 22 and the second ring-shaped guide rail 32, and act as a fan, so that the combination of heat conduction and heat dissipation with air-cooled forced heat dissipation enhances the heat dissipation effect ; In addition, the lamp base mounting base 2 is also provided with an air inlet 23 for the supplement of cold air. The annular fin group is composed of fins 11 evenly distributed on the circumference, that is, there is a gap of a fin thickness between adjacent fins 11, so that the heat dissipation housing 1 is an open structure, Easier to dissipate heat.

In other embodiments of the present invention, the ring-shaped fin group is composed of at least three fins 11 evenly distributed on the circumference and arranged at intervals, and there is a certain gap between adjacent fins 11, all of which can achieve the purpose of the present invention , belong to the protection scope of the present invention.

The structure of the fins 11 in this embodiment is as the curved surface structure shown in Figure 4, and the two ends of the fins 11 are provided with fin mounting holes 111, so that the fins 11 can be installed to form an annular fin group; during installation, the All the fins 11 in the annular fin group are inclined in the same direction relative to the axis of the annular fin group or arranged in a helical line relative to the axis of the annular fin group 1, so that the fin group is in the shape of a turbine, It is easier to rotate under the action of air convection, and this structure makes the structure of the housing more compact, which reduces the volume of the heat dissipation housing 1 while ensuring effective heat dissipation. In other embodiments of the present invention, the structure of the fins 11 can also be a curved surface structure as shown in FIG. Purpose, belongs to the protection scope of the present invention.

The inner edge of the first port 13 is provided with a motor transmission device 12. If the power of the LED chip 51 in the LED light source is relatively large or there are too many integrated LED chips 51, a motor can be installed in the lamp holder 2, and the motor transmission part can 12, accelerate the rotating speed of the heat dissipation housing 1, to enhance the heat dissipation effect, so that the heat dissipation housing is suitable for high-power LED lamps, and has a wide range of applications; the LED light source 5 is connected to the light source bracket 33 through the The above-mentioned lampshade mounting base 3 is connected, which can effectively export the heat emitted by the LED light source 5, thereby increasing the natural heat dissipation function.

As shown in Figures 2-3, the lampshade mounting base 3 in this embodiment further includes a light source bracket 33 disposed on the inner edge of the second annular guide rail 32, and the light source bracket 33 protrudes inwardly of the lampshade 6; The light source bracket 33 is provided with a light source installation hole 34 for installing the LED light source 5; the LED light source 5 is a polygonal pyramid integrated light source, and LED chips 51 are arranged on the sides of the polygonal pyramid. This pyramidal light source structure effectively increases the light emitting angle of the LED light source 5; moreover, the light source bracket 33 protrudes into the lampshade 6, effectively reducing the light blocking range of the light source bracket 33, so that the The rear end of the LED light source 5 has a large luminous flux, realizes omnidirectional light emission, enhances the brightness of the LED lighting lamp, and improves the use effect.

The polygonal pyramid in this embodiment is preferably a 3-pyramid, which not only has a simple structure and is easy to process and implement, but also can realize omnidirectional light emission. As other embodiments of the present invention, according to the application occasion of the LED lighting lamp, the number of edges of the polygonal pyramid can also be set to 3-10, all of which can achieve the purpose of the present invention and belong to the protection scope of the present invention.

In this embodiment, the ratio of the inner diameter of the first annular guide rail 22 to the height of the annular fin group 1 is 1:2, and the inner diameter of the first annular guide rail 22 and the inner diameter of the second annular guide rail 32 The ratio is 1:1.2. In other embodiments of the present invention, the ratio of the inner diameter of the first annular guide rail 22 to the height of the annular fin group is 1:1 to 1:5, and the inner diameter of the first annular guide rail 22 is smaller than or equal to the The inner diameter of the second annular guide rail 32; the bell-shaped or cylindrical structure brought by this ratio is more convenient for air convection, making the heat dissipation housing 1 easier to rotate. Therefore, these embodiments can all achieve the purpose of the present invention and belong to protection scope of the present invention.

The blades of the fins 11 in this embodiment protrude into the interior of the heat dissipation housing 1, so that the outer surface of the heat dissipation housing 1 is a smooth curved surface, making the structure of the housing more compact, while ensuring effective heat dissipation. , reducing the volume of the heat dissipation housing 1 .

The aspect ratio of the fins 11 in this embodiment is 5:1, which maximizes the effective heat dissipation area of the fins 11 while ensuring the effect of air cooling and heat dissipation, thereby enhancing the heat dissipation performance of the housing. In other embodiments of the present invention, the aspect ratio of the fins 11 is 3:1-11:1, all of which can achieve the purpose of the present invention and belong to the protection scope of the present invention.

In the LED lighting lamp described in this embodiment, the heat dissipation housing 1, the lamp holder mounting seat 2, the lampshade mounting seat 3, the first ball 21, the second ball 31 and other components are all Metal parts, preferably aluminum parts, have good thermal conductivity and low raw material cost.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived therefrom still fall within the scope of protection of the present invention.

Claims (6)

1. a LED illumination lamp, comprises radiating shell (1), lamp holder mount pad (2), lampshade mount pad (3), the lamp holder (4) being fixed on described lamp holder mount pad (2) lower end by secure component, LED light source (5), the lampshade (6) be arranged on described lampshade mount pad (3); It is characterized in that:

Described radiating shell (1) comprises and to be intervally arranged the hollow ring fins set formed by least 3 fins (11) distributed at even circumferential, and the first port (13) extended from described radiating shell (1) two ends and the second port (14);

Described lamp holder mount pad (2) comprises the first ring-shaped guide rail (22), the air inlet (23) of through described lamp holder mount pad (2), described lampshade mount pad (3) comprises the second ring-shaped guide rail (32), described first port (13), described second port (14) is respectively by the first ball (21) be arranged in described first ring-shaped guide rail (22), be arranged on the second ball (31) in described second ring-shaped guide rail (32) and described first ring-shaped guide rail (22) and described second ring-shaped guide rail (33) phase fit, described radiating shell (1) can be rotated along described lamp holder mount pad (2) and described lampshade mount pad (3),

Described first port (13) inner edge is provided with the motor-driven parts (12) for connecting rotor;

Described lampshade mount pad (3) also comprises the light source bracket (33) being arranged on described second ring-shaped guide rail (32) inner edge, and described light source bracket (33) is to described lampshade (6) inner process;

Described light source bracket (33) is provided with light source mounting hole (34), for installing LED light source (5);

Described LED light source (5) is polygonal pyramid body integrated light-emitting light source, is provided with LED chip (51) in the side of described polygonal pyramid body.

2. LED illumination lamp according to claim 1, is characterized in that: the blade-section of described fin (11) stretches into the inside of described ring fin group, and described fin (11) is obliquely installed relative to the axis of described ring fin group.

3. LED illumination lamp according to claim 1 and 2, is characterized in that: the ratio of the internal diameter of described first ring-shaped guide rail (22) and the height of described radiating shell (1) is 1:1 ~ 1:5.

4. LED illumination lamp according to claim 3, is characterized in that: the internal diameter of described first ring-shaped guide rail (22) is less than or equal to the internal diameter of described second ring-shaped guide rail (32).

5. LED illumination lamp according to claim 4, is characterized in that: described fin (11) length-width ratio is 3:1 ~ 11:1.

6. the LED illumination lamp according to claim 1 or 2 or 4 or 5, is characterized in that: described radiating shell (1), described lamp holder mount pad (2), described lampshade mount pad (3), described chip set (5), described first ball (21), described second ball (31) are metal parts.