CN201944639U - Combined radiating fin structure of LED energy-saving lamps - Google Patents

Abstract

The utility model discloses an LED energy-saving lamp with a combined heat sink structure. The LED energy-saving lamp for which the heat dissipation structure is applied includes a lamp body, a lampshade, a light source assembly, a light source heat dissipation base, a power supply assembly and a lamp holder, wherein the lamp One or more sets of evenly arranged cooling fins are arranged between the side of the inner cavity top facing the lamp inner cavity and the lamp body, and each group of cooling fins is perpendicular to each other or interlaced to form a heat dissipation structure of the LED energy-saving lamp. The application of the heat dissipation structure of the utility model enables the energy-saving lamp to quickly dissipate the heat generated by the LED light source through the heat sink; the integrated design of the heat dissipation structure and the lamp body fully guarantees the heat dissipation requirements of the LED and the energy-saving lamp. service life. In addition, the use of universal standard lamp holders can directly replace existing halogen lamps, incandescent lamps, and fluorescent lamps. The energy-saving effect is remarkable, and it can be widely used in indoor and outdoor decoration, shopping malls and office lighting.

Description

An LED energy-saving lamp with a combined heat sink structure

technical field

The utility model relates to a lighting device, in particular to a heat dissipation structure of an LED energy-saving lamp using a power-type light-emitting diode as an LED light source assembly, and belongs to the technical field of semiconductor lighting.

Background technique

At present, LED energy-saving lamps have entered the market, but have not yet become popular. LED energy-saving lamps use high-brightness white light-emitting diodes as the lighting source. Compared with tubular energy-saving lamps, the light source has higher luminous efficiency, less power consumption, long life, easy control, maintenance-free, and green environmental protection. Compared with incandescent lamps or low-voltage Fluorescent tubes and LEDs have obvious advantages in stability and long life. But as far as the current technical conditions are concerned, almost all manufacturers use LED bulbs with aluminum alloy radiators. The lamp body has a closed structure with cooling fins around it. The radiator has no dedicated heat conduction channels, so the heat transfer of the lamp body is slow and the temperature The rise is very fast, exceeding the junction temperature of the chip of the LED light source, which seriously affects the life of the light source; moreover, the heat dissipation substrate of the light source is placed close to the top of the lampshade, placed on a plane, and the irradiation angle is limited. Generally, it can only illuminate 120°, which cannot reach The effect of irradiating 360°, the light of each LED light source is too bright, which will strongly stimulate the eyes, and it is not possible to look directly at it. There is high brightness in a narrow angle of direct viewing, and the light weakens rapidly after deviating from this angle, which reduces the brightness to a certain extent. Light output efficiency, light loss is more serious. Therefore, the advantages of LED energy-saving lamps as indoor lighting fixtures need to be improved. In addition to considering heat dissipation and heat conduction in the structure, the problem of light distribution is also the object of our research. We must change these shortcomings and defects through new methods and approaches, and propose a mature solution. The program meets the needs.

Contents of the invention

In view of the deficiencies in the prior art of LED light bulbs, the utility model aims to provide an LED energy-saving lamp with a combined heat sink structure, which improves the heat conduction of the aluminum alloy heat sink, that is, uses more than 1W of power As the LED light source component, the type light-emitting diode adopts the lamp body made of high thermal conductivity material, and multiple groups of combined heat sinks arranged in different directions form a heat dissipation structure based on the lamp body and the inner cavity top cover, which solves the problem of fast speed of LED energy-saving lamps. The problem of heat dissipation and improving light extraction efficiency.

The technical scheme that the utility model realizes its purpose is:

An LED energy-saving lamp with a combined heat sink structure. The LED energy-saving lamp includes a hollow lamp body, a transparent lampshade installed on the top of the lamp body and an LED light source assembly inside the lampshade, and is installed on the top of the groove-shaped inner cavity of the lamp body. The heat dissipation base of the light source on the cover, the power supply assembly installed in the cavity of the lamp body, and the lamp holder provided at the bottom of the lamp body for external connection, wherein the heat dissipation base of the light source has light source installation surfaces in different directions and angles, so The above-mentioned LED light source assembly and the lamp holder are connected through the power supply assembly, and it is characterized in that: the side of the inner cavity top cover facing the lamp body cavity and the lamp body are respectively provided with one or more sets of uniformly arranged heat sinks, each Groups of heat sinks are vertical or interlaced to form a heat dissipation structure of the LED energy-saving lamp.

Preferably, the LED light source assembly is composed of single-color or multi-color light-mixing light-emitting diodes with a power of more than 1W, and is packaged on each light source installation surface of the light source heat dissipation base, and the lampshade covers all the light-emitting diodes.

Preferably, the lamp body is an aluminum alloy or ceramic structure, and each heat sink on the lamp body has a heat-dissipating outer surface that has been sandblasted and polished.

Preferably, the shape and structure of the heat dissipation base of the light source is a mixture of one or more of truncated cone, truncated prism, truncated cone, prism and cylinder.

Preferably, the inner wall of the lampshade is provided with an optical anti-reflection film or has a frosted surface, and the shape of the lampshade includes hemispherical, spherical cylindrical, cylindrical or prismatic.

Preferably, the lamp body and the lampshade, the lamp body and the lamp holder are respectively provided with a detachable connection structure of one of buckle slots, threads or screw holes.

Preferably, the lamp holder includes a plastic seat and a metal interface riveted on the circumference, the power supply assembly is fixed in the plastic seat, and a part of the plastic seat is inserted into the inner cavity of the lamp body; the metal interface is copper Nickel-plated high-frequency porcelain E-27 standard screw.

Compared with various LED lighting fixtures in the prior art, the LED energy-saving lamp made by applying the technical solution of the utility model has the beneficial effect that the LED light source can be effectively and quickly generated The heat is dissipated through the heat sink; the integrated design of the heat dissipation structure and the lamp body fully guarantees the heat dissipation requirements of the LED and the service life of the energy-saving lamp. In addition, the use of universal standard lamp holders can directly replace existing halogen lamps, incandescent lamps, and fluorescent lamps, and the energy saving effect is remarkable.

Description of drawings

Fig. 1 is the three-dimensional appearance schematic diagram of an embodiment of the LED energy-saving lamp of the present invention;

Fig. 2 is the axial sectional schematic view of the embodiment shown in Fig. 1;

Fig. 3 is an exploded schematic diagram of the assembly structure of the embodiment shown in Fig. 1;

Fig. 4a and Fig. 4b are the top view and perspective view of one of the heat dissipation base structures of the LED energy-saving light source of the utility model;

Fig. 5a and Fig. 5b are the plan view and perspective view of the second structure of the heat dissipation base of the LED energy-saving light source of the utility model.

The meaning of each reference sign in the figure is:

1-lampshade, 2-LED light source assembly, 3-lamp body, 4-lamp holder, 5-drive power supply assembly, 6-light-emitting diode, 7-light source cooling base, 8-inner cavity top cover, 81-second group Heat sink, 9-the first group of heat sink, 10-plastic seat, 11-metal interface

Detailed ways

The technical scheme of the utility model is described in detail below in conjunction with the accompanying drawings of the description.

As shown in Figure 1 and Figure 2, the three-dimensional appearance schematic diagram of an embodiment of the LED energy-saving lamp and the schematic diagram of the axis section, the LED energy-saving lamp includes a transparent lampshade 1 installed on the top of the lamp body and an LED light source assembly 2 inside the lampshade for heat dissipation. The lamp body 3 with the function of the device, the lamp holder 4 as the connector, and the power supply component 5 as the power supply and drive, and embedded in the groove structure at the top of the inner cavity of the lamp body 3 to fix the LED light source component 2 can be installed in different directions An approximately 360° illuminant is formed on the heat dissipation base of the light source. The lamp body 3 with the heat sink function is made of high thermal conductivity ceramic material or aluminum alloy material.

As shown in Figure 3, the utility model has made structural improvements to the heat transfer mode of the lamp body of this kind of LED energy-saving lamp. A first group of vertical heat sinks 9 are arranged side by side. The outer surfaces of the heat sinks are sandblasted and polished, and the hollow parts between the heat sinks form the outer cavity of the lamp body. The ribs of the heat sinks constituting the outer cavity of the lamp extend upward in an arc from the upper end of the screw socket of the lamp holder 4 to the lower edge of the lampshade 1, and are provided at the top of the ribs of the first group of heat sinks 9 for connection with the lampshade 1 Assembled tooth-shaped grooves have large gaps and distances between ribs, and form a main body shape structure of a lamp body at 360 degrees; on the upper part of the inner cavity opposite the outer cavity of the lamp body, a An inner cavity top cover 8, and the side of the inner cavity top cover facing the inner cavity forms a second group of cooling fins 81 formed by uniformly arranging several discs with different areas. And in this embodiment, the second group of cooling fins 81 and the first group of cooling fins 9 are installed perpendicular to each other. In addition, the central portion of the second group of cooling fins 81 in the inner cavity forms a hollow tubular structure, which facilitates the connection of the LED light source assembly and the power supply assembly therein.

In addition, the shape of the lampshade 1 and the shape of the internal space can be adjusted arbitrarily according to the size and height of the LED light source 6. The lampshade 1 is made of transparent resin or PC, and its shape can be hemispherical, spherical, or cylindrical. , Prismatic, and the inner wall of the lampshade can be provided with an optical anti-reflection coating or frosted treatment; this treatment method can transform the directional LED light into a uniform surface light. The connection between the PC transparent lampshade and the lamp body is connected by various detachable assembly methods such as a slotted connection structure or a threaded connection or a screw screw hole connection.

The inner cavity of the lamp body is a cylindrical cavity connected with the lamp holder 4; the driving power assembly 5 is placed in the plastic seat 10 of the lamp holder, and then inserted into the inner cavity of the lamp. The driving power supply assembly is respectively connected with the LED light source assembly and the metal interface 11 of the lamp holder.

As shown in Figure 4a, Figure 4b, Figure 5a, and Figure 5b, in order to realize the formation of an approximately 360° illuminant, the position of the LED light source assembly 2 is adjusted by changing the position of the LED light source assembly 2 through the protruding light source heat dissipation base 7 installed in different angle directions. The light emitting angle of the light realizes all-round light emission, which improves the light emitting efficiency of the lamp system. The heat dissipation base 7 of the light source is embedded and screwed and fixed in the groove structure on the upper surface of the top cover of the lamp body cavity. In order to realize all-round light emission, its shape and structure are set in the shape of a circular frustum, a conical frustum, a prism or a cylinder. One or more of them are mixed, usually frustoconical or prismatic. On the light source cooling base 7, according to the distribution, the light emitting diodes 6 can be mounted on the upper plane or around it. The LED light source assembly 2 is composed of a single-color or multi-color light-mixing light-emitting diode 6 with a power of not less than 1W. It is attached to the heat sink of the LED light source assembly in the form of a separate package or an integrated package, and is attached to the light source through a heat-conducting adhesive. The LED light source assembly 2 is formed on the component radiator, and the light outlet of the LED light source assembly 2 faces the PC lampshade 1 .

In addition, the lamp holder 4 of the LED energy-saving lamp is composed of a built-in plastic holder 10 and a metal interface 11, and the metal part of the lamp holder 4 is a copper nickel-plated high-frequency porcelain E-27 standard screw, and it can also be in other forms. The general interface form.

LED energy-saving lamp is a high-brightness white light-emitting diode light source, high luminous efficiency, low power consumption, long life, easy to control, maintenance-free, safe and environmentally friendly, is a new generation of solid cold light source, and incandescent tube or low-voltage fluorescent tube, LED The stability and long life are the obvious advantages, suitable for long-term lighting in various public places such as homes, shopping malls, banks, hospitals, hotels, restaurants, etc.

In summary, it is a preferred embodiment of the utility model for an LED energy-saving lamp with a combined heat sink structure, and the usual changes and replacements made to this technical solution in the field should be included in the scope of protection of this patent application Inside.

Claims (7)

1. LED electricity-saving lamp with combined type heat radiating fin structure, described LED electricity-saving lamp comprises hollow lamp body, be installed on the lampshade of lamp body top transparent and the led light source assembly in the lampshade, be loaded on the light source heat radiation base on the lamp body groove shape inner chamber top cover, be loaded on the power supply module in the lamp body inner chamber and be located at the lamp body bottom and be used for the outside lamp socket that connects, wherein said light source heat radiation base has different directions, the light source installed surface of different angles, described led light source assembly and lamp socket are connected by power supply module, it is characterized in that: described inner chamber top cover is respectively equipped with a group or more evenly distributed fin between side of lamp body inner chamber and lamp body, it is vertical mutually or staggered that each organizes fin, constitutes LED electricity-saving lamp radiator structure.

2. a kind of LED electricity-saving lamp according to claim 1 with combined type heat radiating fin structure, it is characterized in that: described led light source assembly for by more than the power 1W, the light emitting diode of monochrome or polychrome mixed light constitutes, be encapsulated on each light source installed surface of light source heat radiation base, described lampshade covers whole light emitting diodes.

3. a kind of LED electricity-saving lamp with combined type heat radiating fin structure according to claim 1, it is characterized in that: described lamp body is aluminium alloy or ceramic structure, and each fin on the lamp body has the heatsink outer surface through sandblast and polishing.

4. a kind of LED electricity-saving lamp with combined type heat radiating fin structure according to claim 1 is characterized in that: the shape and structure of described light source heat radiation base be truncated cone-shaped, terrace with edge shape, truncated cone, prismatic and cylindrical in one or more mixing.

5. a kind of LED electricity-saving lamp with combined type heat radiating fin structure according to claim 1 is characterized in that: described lampshade inwall is provided with optical anti-reflective film or is frosting, and the lampshade shape comprises hemispherical, goalpost shape, cylindrical or prismatic.

6. a kind of LED electricity-saving lamp with combined type heat radiating fin structure according to claim 1 is characterized in that: the detachable syndeton that is respectively equipped with one of buckle draw-in groove, screw thread or screw screw between described lamp body and lampshade, lamp body and the lamp socket.

7. a kind of LED electricity-saving lamp according to claim 1 with combined type heat radiating fin structure, it is characterized in that: described lamp socket comprises the plastic seat and the metal interface of circumference riveted joint combination, described power supply module is fixed in the plastic seat, and the part of described plastic seat is inserted in the lamp body inner chamber; Described metal interface is a copper nickel plating high frequency porcelain E-27 standard screw socket.

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