CN201336305Y - Diamond LED module group with lamp cups - Google Patents

Abstract

The utility model discloses a diamond LED module group with lamp cups. The LED module group comprises a diamond frame-shaped insulating housing (1); a cooling fin (2) is arranged at the bottom of the central part of an inner ring of the housing; at least two lamp cups (5) which can form light-focusing reflection surfaces are arranged on the upper surface of the cooling fin; an LED (3) is arranged in each lamp cup; a heat conductive insulation adhesive is filled between the LED and the lamp cup; and a pin (4) of the LED is guided out from the side wall of the housing. At least two LEDs are placed in the same round housing, so that indexes of the LED module group such as the illumination intensity, the luminous efficiency and the like can match those of a high-power LED; and at the same time, the LED module group saves PCB space, is convenient for the layout of an electronic element, and has good radiating effect. Dispersedly arrayed LEDs in the same module group can achieve mutual light distribution, thereby saving the cost of lenses needed by the high-power LED; as LEDs in different colors are arrayed in the housing, and an external circuit is designed, the LED module group can transmit mixed lights in different colors in different periods; and besides, the lamp cups can condense the LEDs, thereby strengthening the directivity and the concentricity of the LED power source. The LED module group has the advantages of simple structure and low cost.

Description

Rhombus LED module with light cup

technical field

The utility model belongs to the technical field of semiconductor devices, in particular to an LED module using a light emitting diode as a light source.

Background technique

Like traditional light sources, semiconductor light-emitting diodes (LEDs) also generate heat during operation, the amount of which depends on the overall luminous efficiency. Under the action of external electric energy, the radiative recombination of electrons and holes produces electroluminescence, and the light radiated near the P-N junction needs to pass through the semiconductor medium and packaging medium of the chip (chip) itself to reach the outside world (air). Comprehensive current injection efficiency, radiative luminescence quantum efficiency, chip external light extraction efficiency, etc., in the end, only about 30-40% of the input electric energy is converted into light energy, and the remaining 60-70% of the energy is mainly generated by the lattice vibration of non-radiative recombination. Form into heat energy. The increase of the wafer temperature will enhance the non-radiative recombination and further weaken the luminous efficiency.

The LED lighting fixtures currently on the market combine multiple LEDs in series and parallel. If high-power LEDs are used for series-parallel combination, the problem of heat dissipation of lamps and lanterns is difficult to solve at the present stage; if 20mA low-power LEDs are used for series-parallel combination, the number of LEDs used will increase greatly. The layout of components on the board is also a problem that must be considered. In addition, the existing light-gathering structure of the LED lamp still has the problem of relatively high cost.

Utility model content

The purpose of the utility model is to provide a diamond-shaped LED module with a lamp cup, which has good heat dissipation, convenient layout and simple light-gathering structure.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a diamond-shaped LED module with a lamp cup, including an insulating shell, the shell is a diamond-shaped frame, and the middle bottom of the inner ring of the shell is provided with a heat sink. There are at least two lamp cups on the heat sink that can form a light-concentrating reflective surface. LEDs are arranged in the lamp cups, and heat-conducting insulating glue is filled between the LEDs and the lamp cups. drawn out.

Owing to adopting above-mentioned structure, the utility model has following beneficial effect:

1) Two or more 3V/20mA LED chips are scattered and combined in the same circular housing, which can be comparable to high-power LEDs in terms of illuminance and light efficiency, and also save PCB space and facilitate the layout of electronic components;

2) The heat generated by the LED is transferred to the exposed copper area of the installed PCB through the heat sink, and then dissipated by the exposed copper area of the PCB, which has a good heat dissipation effect;

3) LEDs arranged in a distributed manner in the same module can achieve mutual light distribution, which can save the cost of lenses required for high-power LEDs. LEDs of different colors are discharged in the housing, and then through external circuit design, different colors can be emitted at different times. the mixed light;

4) According to the external circuit design, the LEDs in the module can be flexibly connected in series and parallel;

5) The light cup can concentrate the LED light, enhance the directionality and concentration of the LED light source, and has a simple structure and low cost.

Description of drawings

The specific implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings, but this does not constitute any limitation to the present utility model.

Figure 1 is a perspective view of a diamond-shaped LED module with a lamp cup;

FIG. 2 is a partial sectional view of FIG. 1 .

Detailed ways

As shown in FIG. 1 and FIG. 2 , the diamond-shaped LED module with lamp cup described in the present invention includes a housing 1 made of insulating material and shaped like a diamond frame. The bottom of the inner circle of the housing 1 is provided with a heat sink 2, the heat sink 2 can be made of a material with good thermal conductivity such as metal, and at least two lamp cups 5 that can form a light-concentrating reflective surface are arranged on the heat sink 2, so The above-mentioned lamp cup 5 can be formed by a concave hole provided on the heat sink 2, which is relatively easy to manufacture and low in cost. In the figure, 9 lamp cups 5 are selected, and of course other numbers can also be used. Each lamp cup 5 is provided with an LED 3 , and the space between the LED 3 and the lamp cup 5 is filled with heat-conducting insulating glue. The shapes of the heat-conducting insulating glue and the LED 3 are not clearly drawn in the figure. The nine LED3s have eighteen pins in total, and the pin 4 is led out from the side wall of the housing 1 for power connection of the LED3.

Claims (3)

1. rhombus LED module with Lamp cup, it is characterized in that: the housing (1) that comprises insulation, housing (1) is the diamond shape, the inner ring central bottom of housing (1) is provided with fin (2), on fin (2), be provided with at least two Lamp cups (5) that can constitute the optically focused reflecting surface, be provided with LED (3) in the described Lamp cup (5), be filled with thermal conductive insulation glue between LED (3) and the Lamp cup (5), the pin (4) of LED (3) extracts from the sidewall of housing (1).

2. according to the rhombus LED module of the described band Lamp cup of claim 1, it is characterized in that: described Lamp cup (5) is provided in a side of the shrinkage pool on the fin (2).

3. according to the rhombus LED module of claim 1 or 2 described band Lamp cups, it is characterized in that: described LED (3) is 9.

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