CN204554429U - A kind of LED - Google Patents

Abstract

The utility model relates to an LED lamp, which comprises a lamp holder, a lampshade and an LED lamp board which is arranged in the lampshade and can emit light on both sides; The reflector for large-angle lighting, the central axis of the heat transfer bracket and the reflector are perpendicular to the plane where the LED light board is located. Compared with the prior art, the LED lamp of the utility model is similar in structure to the traditional incandescent lamp, and has the advantages of simple structure, convenient assembly, safe use, good heat dissipation effect and full luminous angle.

Description

A kind of LED light

technical field

The utility model relates to the technical field of LED lighting, in particular to a non-directional LED lamp.

Background technique

At present, LED lamps on the market are used to replace traditional incandescent lamps. If LED lamps can be made similar in structure to incandescent lamps, LED lamps will be more popular with consumers, but traditional incandescent lamps consist of lampshades and filaments. Composition, the shape of the whole lamp is a large glass lampshade, and the structure of the LED lamp itself determines that it needs to have a certain heat dissipation capacity, so if the LED is placed in a traditional large glass lampshade, its heat dissipation capacity will be affected. There are great limitations. At present, only small power LEDs can be placed in the traditional large glass lampshade, and the lighting effect of small power LEDs is poor; now there are some new technologies that fill the large glass lampshade with liquid or gas. To realize the heat dissipation function, but this technical means is complicated in process and also has potential safety hazards.

In order to solve the above technical problems, the utility model proposes an LED lamp with simple structure, safe use, good heat dissipation effect and full luminous angle.

Utility model content

The utility model aims at the deficiencies in the above-mentioned prior art, and provides an LED lamp with simple structure, safe use, good heat dissipation effect and full luminous angle.

The technical scheme of the utility model is achieved in that:

An LED lamp includes a lamp holder, a lampshade, and an LED lamp board that is arranged in the lampshade and can emit light on both sides; a heat transfer bracket for realizing heat conduction and a large-angle lighting are connected between the LED lamp board and the lamp holder. The reflector, the central axis of the heat transfer bracket and the reflector are perpendicular to the plane where the LED light board is located.

A heat transfer support for heat conduction and a reflector for large-angle lighting are connected between the LED light board and the lamp head, effectively solving the heat dissipation and lighting problems of the LED light.

Preferably, the height of the lampshade accounts for more than 1/2 of the overall height of the LED lamp.

The height of the lampshade accounts for more than 1/2 of the overall height of the LED lamp, which is similar to the structure of the traditional incandescent lamp and is more popular with consumers.

Preferably, a lamp holder is provided between the lamp cap and the lampshade, the heat transfer bracket is vertically arranged at the upper end of the lamp holder part in the lampshade, and the LED lamp board is arranged at the upper end of the heat transfer holder; The reflector is arranged around the heat transfer support, and the upper and lower ends of the reflector are respectively connected to the LED lamp board and the lamp holder.

The heat transfer bracket and the upper and lower ends of the reflector are respectively connected to the LED lamp board and the lamp holder. The heat generated by the LED lamp board is transferred to the lamp holder, and a part of the lamp holder is exposed to the outside world, thus realizing the communication between the inside of the lampshade and the outside air. Heat exchange, that is to say, the heat transfer bracket and the reflector serve as the heat transfer channel between the LED light board and the lamp holder; moreover, both sides of the LED light board can emit light, and part of the light emitted by the LED light board can be It is projected onto the reflector, and refracted outward through the reflector, realizing the large-angle illumination of the LED lamp, realizing the large-angle illumination, and improving the intensity of illumination.

Preferably, the central axis of the heat transfer bracket coincides with the central axis of the reflector.

Preferably, the heat transfer bracket and the reflector are integrally formed using metal materials, heat-conducting plastic materials or heat-conducting ceramic materials, or the heat-transfer bracket and the reflector are made of any two of metal materials, heat-conducting plastic materials or heat-conducting ceramic materials Material split molding.

The heat transfer bracket and the reflector are made of metal materials, thermally conductive plastic materials or ceramic materials. These materials have better thermal conductivity and effectively solve the heat dissipation problem of the LED lamp.

Preferably, the reflector is in the shape of a trumpet with a small upper end and a larger lower end, and a plurality of cooling holes are opened on the surface of the reflector.

The reflector is set in the shape of a horn with a small upper end and a larger lower end. Part of the light emitted by the LED light board can be projected onto the reflector and then refracted outward through the reflector. This realizes the large-angle lighting of the LED lamp and further improves the lighting. Effect: There are also multiple heat dissipation holes on the surface of the reflector, which further effectively solves the heat dissipation problem of the LED lamp.

Preferably, both front and back sides of the LED light board are provided with LED chips, and the light output ratio of the front and back sides of the LED light board is 1:0.3-1.

Preferably, the LED chip is only provided on one side of the LED lamp board. The LED lamp board adopts a transparent substrate and is coated with phosphor powder on both sides of the transparent substrate, and the light output of the front and back sides of the LED lamp board is The ratio is 1:0.3~1.

Preferably, a through hole is opened in the middle of the LED lamp board. The through holes are used to pass through the wires to facilitate the connection of electrical appliances.

Preferably, the lampshade is made of glass material or PC plastic material; the lamp holder is made of metal material, heat-conducting plastic material or heat-conducting ceramic material.

The lampshade is made of glass material or PC plastic material, which are easy to form and low in cost; the lamp holder is made of metal material, heat-conducting plastic material or heat-conducting ceramic material, these materials are easy to form and have good thermal conductivity, which effectively solves the problem of LED lighting. The heat dissipation problem of the lamp.

Preferably, the lampshade made of glass material is fixedly connected to the lamp holder by bonding glue.

Preferably, the lampshade made of PC plastic is fixedly connected to the lamp holder through a mechanical buckle.

Preferably, a driving power supply is provided in the space formed by the lamp base and the lamp holder, and the electrical connection between the driving power supply and the LED lamp board, and between the driving power supply and the lamp base is realized through wires or connectors.

Preferably, the wire part between the LED lamp board and the lamp holder is passed through the heat transfer bracket.

The design concept and the beneficial effects of the utility model that have adopted the above-mentioned technical solution are:

The utility model provides an LED lamp with simple structure, convenient assembly, safe use, good heat dissipation effect and full luminous angle. The height of the lampshade in the utility model accounts for more than 1/2 of the overall height of the LED lamp, which is similar to the structure of the traditional incandescent lamp and is more popular with consumers. A heat transfer bracket is connected between the LED lamp board and the lamp holder to realize heat conduction And the reflector that realizes large-angle lighting effectively solves the heat dissipation and lighting problems of LED lights.

Specifically, the upper and lower ends of the heat transfer bracket and the reflector are respectively connected to the LED lamp board and the lamp holder, or if no lamp holder is provided between the lamp cap and the lampshade, the upper and lower ends of the heat transfer bracket and the reflector are respectively connected to the LED lamp. Board and lamp holder, the heat generated by the LED lamp board is transferred to the lamp holder, and a part of the lamp holder is exposed to the outside, thus realizing the heat exchange between the lampshade and the outside air, that is to say, the heat transfer bracket and the reflector serve as The heat transfer channel between the LED light board and the lamp holder; at the same time, the front and back sides of the LED light board can emit light, and part of the light emitted by the LED light board can be projected on the horn-shaped reflector, and then passed through the reflector. The refraction outward realizes the large-angle illumination of the LED lamp and improves the illumination intensity.

Description of drawings

Fig. 1 is a schematic plan view of the LED lamp in Embodiment 1 of the utility model;

Fig. 2 is the schematic diagram of the optical design of the utility model without a reflector;

Fig. 3 is a schematic diagram of the optical design of the installation of the reflector in the present invention.

Detailed ways

The specific embodiment of the utility model is as follows:

Embodiment: First define the direction: the LED lamp described in this embodiment is a lampshade, a lamp holder and a lamp holder in order from top to bottom, which is opposite to its normal use state; a heat transfer bracket and a reflector are connected between the LED lamp board and the lamp holder , the connection methods mentioned here include direct connection and indirect connection.

A kind of LED lamp, as shown in Figure 1, comprises lamp cap 1, lamp holder 2, lampshade 3, LED lamp board 4 and drive power supply 5, the upper end and the lower end of lamp holder 2 are respectively connected lampshade 3 and lamp holder 1, LED lamp board 4 It is arranged in the lampshade 3, and the driving power supply 5 is arranged in the space formed by the lamp holder 1 and the lamp holder 2. The electrical connection between the driving power supply 5 and the LED lamp board 4, and between the driving power supply 5 and the lamp holder 1 is realized by electric wires, wherein the lampshade 3 is made of glass material, the lamp holder 2 is made of heat-conducting plastic material, the lampshade 3 and the lamp holder 2 are fixedly connected by bonding glue, and the height of the lampshade 3 accounts for 2/3 of the overall height of the LED lamp.

Specifically, a vertically arranged heat transfer support 6 is fixedly connected to the upper end of the lamp holder 2 located in the lampshade 3, and a horizontally arranged LED lamp panel 4 is fixedly connected to the upper end of the heat transfer support 6. In order to facilitate installation and realize Optical effect, a through hole is provided in the middle of the LED lamp board 4 for installation and electrical connection; a reflector 7 arranged around the heat transfer bracket 6 is connected between the LED lamp board 4 and the lamp holder 2, and the heat transfer bracket 6 The central axis coincides with the central axis of the reflector 7. The reflector 7 is trumpet-shaped with a small upper port and a large lower port, and a plurality of cooling holes (not shown) are arranged on the surface of the reflector 7 .

Furthermore, the heat transfer bracket 6 is used as a heat transfer channel between the LED lamp board 4 and the lamp holder 2, the heat transfer bracket 6 is fully connected with the lamp holder 2, and transfers the heat generated by the LED lamp board 4 to the lamp holder 2 , the lamp holder 2 realizes heat exchange with the outside air, thereby solving the heat dissipation problem of the LED lamp. In order to further reduce the cost and simplify the structure, the heat transfer bracket 6 and the reflector 7 of the utility model are integrally formed of aluminum materials, and the reflector 7 It is an aluminum reflector, and the heat transfer support 6 is an aluminum heat transfer support, which can achieve a high reflectivity. At the same time, aluminum, as a high-quality heat conductor, can better realize the function of heat conduction.

The LED light board 4 specifically includes a substrate 41, an LED chip 42, fluorescent powder and electrodes. Since the front and back sides of the LED light board 4 are provided with LED chips, the front and back sides of the LED light board 4 can emit light vertically. And the light output ratio of the front and back sides of the LED light board 4 is 1:0.3.

It should be emphasized that since the LED light panel 4 emits light vertically on the front and back sides, as shown in Figure 2, in the three-dimensional space of about 60° to 120°, the light distribution is weak, forming a dark area, which cannot meet the lighting requirements. In order to solve this problem, as shown in Figure 3, the reflector 7 is located under the LED light board 4, and the light that hits the surface of the reflector 7 is distributed to the three-dimensional space of 60° to 120°, so as to achieve a relatively uniform light on the circumference. light intensity. Through the test, the light-emitting angle of the LED light reaches 300°, and the uniformity of light intensity in each direction is >0.8, which meets the requirement of large-angle light emission.

Claims (14)

1. A kind of LED lamp, it is characterized in that: comprise lamp holder, lampshade and be arranged in lampshade and be arranged on and the LED lampboard that can emit light on both sides of front and back; Be connected with the heat transfer support for realizing heat conduction between LED lampboard and lampholder As well as the reflector for realizing large-angle lighting, the central axis of the heat transfer bracket and the reflector is perpendicular to the plane where the LED light board is located. 2. The LED lamp according to claim 1, characterized in that: the height of the lampshade accounts for more than 1/2 of the overall height of the LED lamp. 3. An LED lamp according to claim 1, characterized in that: a lamp holder is provided between the lamp cap and the lampshade, and the heat transfer bracket is vertically arranged at the upper end of the lamp holder part in the lampshade, The LED lamp board is arranged on the upper end of the heat transfer support; the reflector is arranged around the heat transfer support and the upper and lower ends of the reflector are respectively connected to the LED lamp board and the lamp holder. 4. The LED lamp according to claim 1, characterized in that: the central axis of the heat transfer bracket coincides with the central axis of the reflector. 5. A LED lamp according to claim 1, characterized in that: the heat transfer bracket and the reflector are integrally formed of metal materials, heat-conducting plastic materials or heat-conducting ceramic materials, or the heat transfer bracket and the reflector are made of metal Any two materials in material, heat-conducting plastic material or heat-conducting ceramic material are separately molded. 6 . The LED lamp according to claim 1 , wherein the reflector is in the shape of a trumpet with a small upper end and a larger lower end, and a plurality of cooling holes are opened on the surface of the reflector. 7. The LED light according to claim 1, characterized in that: LED chips are provided on both sides of the LED light board, and the light output ratio of the front and back sides of the LED light board is 1:0.3～ 1. 8. An LED lamp according to claim 1, characterized in that: only one side of the LED lamp board is provided with an LED chip, and the LED lamp board adopts a transparent substrate and is coated on both sides of the transparent substrate Phosphor powder, and the light output ratio of the front and back sides of the LED light board is 1:0.3~1. 9. The LED lamp according to claim 1, wherein a through hole is opened in the middle of the LED lamp board. 10. An LED lamp according to claim 3, characterized in that: the lampshade is made of glass material or PC plastic material; the lamp holder is made of metal material, heat-conducting plastic material or heat-conducting ceramic material . 11. The LED lamp according to claim 10, characterized in that: the lampshade made of glass material and the lamp holder are fixedly connected by adhesive glue. 12. The LED lamp according to claim 10, characterized in that: the lampshade made of PC plastic and the lamp holder are fixedly connected by a mechanical buckle. 13. An LED lamp according to claim 3, characterized in that: a driving power supply is provided in the space formed by the lamp holder and the lamp holder, and the connection between the driving power supply and the LED lamp board, the driving power supply and the lamp holder is through wires or Connectors make electrical connections. 14. The LED lamp according to claim 13, characterized in that: the wire part between the LED lamp board and the lamp holder is passed through the heat transfer bracket.