CN203442740U - Large-power LED combined illumination lamp - Google Patents

Abstract

The utility model discloses a large-power LED combined illumination lamp formed by splicing standard LED illumination units directly connected with the mains supply. The large-power LED combined illumination lamp is composed of the LED illumination units arranged on a base plate in advance. Each LED illumination unit is composed of a light engine, a standard LED driving module and an installation heat radiation assembly used for radiating lighting heat of LEDs into the environment, wherein the input end of the driving module is connected with the mains supply, and the output end of the driving module is connected with the light engine. The purpose that the large-power LED illumination lamp can be spliced in a building block mode is achieved, an LED illumination lamp with the needed power can be combined, an LED illumination lamp with the needed color matched can be combined as well, and the large-power LED combined illumination lamp is wide in application range, is convenient to repair and can be used immediately when inserted. When part of the illumination units of the combined LED illumination lamp fails (mainly LEDs and/or driving modules fail), the normal work of the whole LED illumination lamp is not affected, and faults are eliminated only by replacing the faulty LED illumination units.

Description

High power LED combination lighting

technical field

The utility model relates to an LED lighting lamp, in particular to an LED lighting lamp which can be combined into a high-power output.

Background technique

Most of the LED lighting products in the prior art assemble the driving circuit, light engine, heat sink and lens into a basic structure similar to the appearance of a traditional light bulb, and then combine several of the above-mentioned LED lighting products into a high-power LED lighting lamp. In this structure, the driving circuit in each LED lighting product is controlled by a unified external constant-voltage driving module composed of an AC/DC conversion circuit. The input end of the constant-voltage driving module is connected to the mains. The output ends are respectively connected to the constant current drive module of each LED lighting product, which not only makes the drive circuit to be configured according to the power and illuminance of each LED lighting product, but also the total constant voltage drive module must be connected with The type, quantity and total output power of LED lamp beads selected for all LED lighting products match.

This structure has the following disadvantages:

1) The structure is complex and troublesome to make.

2) Many control factors and unstable performance.

3) Since the constant voltage drive module of the combined high-power LED lighting is shared, each LED lighting product is highly correlated. When the driving circuit or individual lamp beads of a certain LED lighting product are abnormal , will cause the entire drive control system to fail to operate normally.

Contents of the invention

The technical problem to be solved by the utility model is to provide a high-power LED combined lighting assembled from standardized LED lighting units directly connected to the mains.

In order to solve the above technical problems, the technical solution adopted by the utility model is:

The high-power LED combined lighting lamp of the present utility model is composed of at least one LED lighting unit installed on a preset substrate, and each LED lighting unit is composed of a light engine, a standardized LED drive module electrically connected to the light engine, and a user It is used to fix the light engine and the LED driver module and install the cooling assembly that can dissipate the heat of the LED light to the surrounding environment. The input end of the driver module is connected to the mains, and the output end is connected to the light engine. catch.

The output power of the LED lighting unit is a power unit module of 1W, 1.5W or 3W respectively.

The heat dissipation assembly includes a heat dissipation cylinder with an external thread on the top and a nut that can fix the top of the heat dissipation cylinder on the preset substrate, the nut is rotatably connected to the external thread, the light engine and the LED drive module Assemble and place in the heat sink.

Vertical or horizontal cooling fins are arranged on the outer wall of the cooling tube.

The preset substrate is made of metal material with good heat dissipation.

A hemispherical rotatable and detachable lampshade is provided at the bottom of the heat dissipation tube.

At least two LED lamp beads are arranged on the light engine, and the LED lamp beads are single-color combination or multi-color combination.

The drive module is a step-down non-isolated AC/DC buck conversion circuit.

The model of the switch chip in the drive module is D8020.

Compared with the prior art, the high-power LED combined lighting lamp of the utility model adopts a structure assembled from several standardized LED lighting units, and each LED lighting unit has an independent drive that can be directly connected to the mains. When using the module, you only need to configure the corresponding number of LED lighting units according to the required power and install these LED lighting units on the preset substrate with designed shape, color and size. The utility model realizes the purpose that the high-power LED lighting lamp can be assembled by building blocks. It can be combined into an LED lighting lamp with required power and can also be combined into an LED lighting lamp with required color matching. It has a wide range of applications. Easy maintenance, plug and play. In addition, when some of the LED lighting units in the LED lighting combined by the utility model fail (mainly because of the failure of the lamp bead and/or the driving module), it will not affect the normal operation of the overall LED lighting, and the fault is eliminated. It is only necessary to replace the problematic LED lighting unit.

Description of drawings

Fig. 1 is a schematic diagram of the shape of the utility model.

Fig. 2 is a schematic diagram of assembly of the LED lighting unit of the present invention.

Fig. 3 is a schematic diagram of the driving module circuit of the LED lighting unit of the present invention.

Reference numerals: nut 1 , preset substrate 2 , drive module 3 , cooling cylinder 4 , external thread 41 , fins 42 , light engine 5 , lampshade 6 , and LED lighting unit 7 .

Detailed ways

As shown in Figure 1, the high-power LED combined lighting lamp of the present utility model consists of a plurality of LED lighting units 7 mounted on a preset substrate 2 (preferably an aluminum plate or an aluminum alloy plate) made of a metal material with good heat dissipation. Composition, the output power of each LED lighting unit 7 can be made into 1W, 1.5W or 3W, and the output power of this high-power LED combined lighting lamp can be freely assembled according to the use requirements. The preset substrate 2 can also be designed into any shape and size according to the requirements of use. Therefore, the high-power LED combined lighting combined by the utility model has a wide range of applications and can be used for street lighting, hotel halls, restaurants and indoor lighting, etc. .

The LED lighting unit 7 is composed of a standardized light engine 5, a driving module 3 and a cooling assembly.

The light engine 5 is composed of a single aluminum substrate and at least one LED lamp bead placed on the aluminum substrate. The LED lamp bead is a single-color combination or a multi-color combination, and the shape of the aluminum substrate can be set to a circle according to the requirements of use. , square or oval.

The drive module 3 is electrically connected to the optical engine 5 and provides electric energy therefor. The drive module 3 is a step-down non-isolated AC/DC buck conversion circuit, its input terminal is connected to the mains, and its output terminal is connected to the mains. The light engine 5 is connected. Its control chip model is D8020, which integrates PWM control, power MOSFET, high voltage regulator, harmonic compensator, soft start and other functional circuits. It works at a fixed frequency of 65KHz and has automatic frequency shaking function. The driving module 3 uses few components, and only 6 peripheral components are used, thereby realizing miniaturization of the LED driving module. IC chips similar to D8020 chips such as OB3380, BP2812, etc.

The heat dissipation assembly includes a heat dissipation tube 4 with an external thread 41 at the top and a nut 1 that can fix the top of the heat dissipation tube 4 on the preset substrate 2. The nut 1 is rotatably connected to the external thread 41, so that The light engine 5 and the LED driving module 3 are installed in the cooling tube 4 .

In order to effectively and rapidly dissipate the heat emitted by the LED lamp beads in the light engine 5 to the surrounding environment, vertical or horizontal cooling fins 42 are provided on the outer wall of the cooling tube 4 . The heat dissipation cylinder 4 is made of a metal material with good heat dissipation, preferably an aluminum plate or an aluminum alloy plate. Its shape can be determined according to the application requirements, and it can usually be a circular cylinder, a square cylinder, an elliptical cylinder or other diamond-shaped cylinders.

In order to protect the light engine 5, a lampshade 6 that can be connected with it can be arranged at the bottom of the cooling tube 4. The lampshade 6 is made of frosted glass, and its shape can be semicircular. It is spirally connected with the cooling tube 4, and it can be flexibly disassembled to make the light softer and more evenly radiate to the space.

Because the utility model can be freely assembled, it can realize the combination of LED lighting units 7 of white light sources with different color temperatures to meet the requirements of different color temperatures, and can also appropriately add LED lighting units 7 of red light sources to increase color rendering. In short, it can be assembled into high-power LED combined lighting lamps that meet various environmental requirements.

The utility model can also add reflective materials or other waterproof and dustproof structural designs on the lampshade 6 as required. For high-power applications, DC fans can also be installed in the upper space to reduce the temperature of the lighting system.

The utility model has the following characteristic effects:

1) Change the integrated design of the traditional light engine 5 to a free combination of multiple small units and the ability to work independently, without the need for an integrated large-scale power supply to avoid the influence of electronic drive temperature rise.

2) Since each light source unit uses independent mains power, if a single fault does not affect the functions of other units, the faulty unit can be replaced with simple tools, which increases the life of the entire system.

3) Due to the combination of multi-point light sources, the requirement of a specific color temperature can be achieved through the selection of LED color temperature.

4) You can also add some red light sources to adjust the color rendering to the best state.

5) The feature of free combination simplifies the design of lamps and can be applied to a variety of different power outputs at the same time.

6) Each LED lighting unit 7 has an independent heat dissipation design. After assembly, adding a heat dissipation aluminum plate (that is, the preset substrate 2) can effectively prevent the temperature from being too high due to excessive concentration, thereby achieving a lower temperature. up effect.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. On the premise of not departing from the concept of the utility model, some simple deduction or replacement can also be made, which should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims (9)

1. a great power LED cluster illumination lamps, it is characterized in that: by least one device, the LED lighting unit (7) on default substrate (2) forms for it, each LED lighting unit (7) by photo engine (5), the standardized LED that is electrically connected to photo engine (5) drive module (3) and for fixing described photo engine (5) and LED drive module (3) also can be by the luminous dissipation of heat of LED the installation radiating subassembly to surrounding environment, input and the civil power of described driving module (3) join, and its output and described photo engine (5) join.

2. great power LED cluster illumination lamps according to claim 1, is characterized in that: described LED lighting unit (7) power output is respectively the power unit module of 1W, 1.5W or 3W.

3. great power LED cluster illumination lamps according to claim 1, it is characterized in that: described installation radiating subassembly comprises that top is provided with the heat-dissipating cylinder of external screw thread (41) (4) and heat-dissipating cylinder (4) top can be fixed on to the nut (1) on described default substrate (2), described nut (1) is rotatably connected with described external screw thread (41), and described photo engine (5) and LED drive module (3) to be installed in heat-dissipating cylinder (4).

4. great power LED cluster illumination lamps according to claim 3, is characterized in that: on the outer wall of described heat-dissipating cylinder (4), be provided with vertical or horizontal radiating fin (42).

5. great power LED cluster illumination lamps according to claim 3, is characterized in that: described default substrate (2) is that the good metal material of heat radiation is made.

6. great power LED cluster illumination lamps according to claim 3, is characterized in that: the lampshade (6) that is provided with hemispheric rotatable dismounting in the bottom of described heat-dissipating cylinder (4).

7. great power LED cluster illumination lamps according to claim 1, is characterized in that: on described photo engine (5), be provided with at least two LED lamp pearls, this LED lamp pearl is monochromatic combination or polychrome combination.

8. according to the great power LED cluster illumination lamps described in any one in claim 1-7, it is characterized in that: described driving module (3) is step-down non-isolation type AC/DC buck change-over circuit.

9. great power LED cluster illumination lamps according to claim 8, is characterized in that: the switch chip model in described driving module (3) is D8020.

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