Projection lamp with constant power and stepless color temperature adjustment

Abstract

The utility model discloses a constant-power projection lamp with stepless color temperature adjustment, and relates to the technical field of projection lamps, in particular to a constant-power projection lamp with stepless color temperature adjustment, which comprises a radiator, a radiating shell and a lamp panel. The radiator comprises a mounting plate, the lamp panel is arranged on one side of the mounting plate, and the radiating shell is arranged on the other side of the mounting plate; the mounting plate is also provided with heat dissipation covers on the two sides of the heat dissipation shell; corresponding adjusting side covers are arranged at the two ends of the radiator respectively. The adjusting side cover is in shaft connection with a corresponding adjusting bracket; a power supply control assembly is arranged in the heat dissipation shell and comprises a power supply conversion power supply module, a main control module and a constant current module; the power supply conversion module is connected with the main control module and the constant current module; the main control module is connected with the constant current module; the constant current module is connected with the lamp panel and is used for driving each lamp bead of the lamp panel; the structure is simple, not only can the rainproof, dustproof and heat dissipation requirements be effectively met, but also the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of floodlights, in particular to a floodlight with constant power and stepless color temperature regulation. Background Art

[0002] A floodlight is a lamp with a higher illuminance on the designated illuminated surface than the surrounding environment. It is also called a spotlight. Usually, it can be aimed in any direction and has a structure that is not affected by climatic conditions. It is mainly used in large-scale mines, building outlines, stadiums, overpasses, monuments, parks and flower beds, etc.

[0003] In order to meet the outdoor protection requirements, the main components of the floodlight are often integrated, which makes it very cumbersome to repair or replace the components. In addition, during the installation and use of existing LED floodlights, the light of the floodlights is mostly fixed in color, resulting in a relatively single color temperature, which cannot be adjusted according to user habits. Utility Model Content

[0004] The utility model aims to avoid the shortcomings of the prior art and provide a technology for a stepless adjustable floodlight which is convenient for maintenance and component replacement.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A constant power and stepless color temperature adjustable floodlight, comprising: a radiator, a heat dissipation shell and a lamp board; the radiator comprises a mounting plate, the lamp board is arranged on one side of the mounting plate, and the heat dissipation shell is arranged on the other side of the mounting plate; the mounting plate is also provided with heat dissipation covers on both sides of the heat dissipation shell; corresponding adjustment side covers are respectively provided at both ends of the radiator; the adjustment side cover shaft is connected with a corresponding adjustment bracket; a power control component is built in the heat dissipation shell, and the power control component comprises a power conversion power supply module, a main control module and a constant current module; the power conversion module is connected to the main control module and the constant current module, and is used to supply power to the main control module and the constant current module; the main control module is connected to the constant current module, and is used to output a PWM signal; the constant current module is connected to the lamp board, and is used to drive each lamp bead of the lamp board.

[0007] Specifically, a heat dissipation port is provided on the adjustment side cover, and the heat dissipation port is communicated with the heat dissipation cavity inside the heat dissipation cover.

[0008] More specifically, a plurality of first heat sinks and a plurality of heat sink slots are provided in the heat sink cover; the first heat sinks are fixedly connected to the mounting plate.

[0009] More specifically, a plurality of second heat sinks are provided on the side of the heat dissipation housing.

[0010] In another specific embodiment, one or both ends of the heat dissipation housing are provided with a plurality of outlet connectors; and the mounting plate is provided with a plurality of inlet connectors.

[0011] Another specific embodiment further includes a panel; corresponding side beams are respectively provided on both sides of the radiator, and the side beams are arranged on both sides of the light panel for installing pressure strips; the pressure strips are used to fix the panel.

[0012] More specifically, a sealing strip is fixedly provided on the side beam; and a sealing ring is also provided between the radiator and the regulating side cover.

[0013] In another specific embodiment, an adjusting shaft hole and a plurality of positioning shaft holes are provided on the adjusting bracket; an adjusting shaft hole is provided on the adjusting shaft hole for connecting with the adjusting side cover; the positioning shaft hole is used for installing the positioning shaft; the adjusting side cover is fixedly connected with the adjusting bracket through the positioning shaft.

[0014] In another specific embodiment, the main control module includes a single-chip microcomputer, a crystal oscillator unit, and a reset circuit connected to the single-chip microcomputer; the single-chip microcomputer is a single-chip microcomputer of model M058LDM.

[0015] More specifically, the power conversion and power supply module includes a power chip of model XL1509; the constant current module includes a constant current chip of model 5119L.

[0016] The beneficial effects achieved by the utility model include: a constant-power, steplessly adjustable color temperature floodlight, comprising: a radiator, a heat dissipation shell and a lamp board; the radiator comprises a mounting plate, the lamp board is arranged on one side of the mounting plate, and the heat dissipation shell is arranged on the other side of the mounting plate; the mounting plate is also provided with heat dissipation covers on both sides of the heat dissipation shell; corresponding adjustment side covers are respectively provided at both ends of the radiator; the adjustment side cover shaft is connected with a corresponding adjustment bracket; a power control component is built into the heat dissipation shell, and the power control component comprises a power conversion power supply module, a main control module and a constant current module; the power conversion module is connected to the main control module and the constant current module, and is used to supply power to the main control module and the constant current module; the main control module is connected to the constant current module, and is used to output a PWM signal; the constant current module is connected to the lamp board, and is used to drive each lamp bead of the lamp board; the structure is simple, which can not only effectively meet the requirements of rain and dustproof and heat dissipation, but also facilitate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a constant power and color temperature stepless adjustable floodlight according to an embodiment of the utility model;

[0019] Figure 2It is a schematic diagram of the exploded structure of a constant power and color temperature stepless adjustment floodlight according to an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a radiator of a floodlight with constant power and stepless color temperature adjustment according to an embodiment of the utility model;

[0021] in, Figures 1 to 3 Including:

[0022] 1. Adjust the bracket; 11. Adjust the shaft hole; 12. Position the shaft hole;

[0023] 2. Adjust the side cover; 21. Adjust the axis; 22. Position the axis; 23. Heat dissipation port;

[0024] 3. Sealing ring; 4. Light board;

[0025] 5. Radiator; 51. Mounting plate; 511. Inlet connector; 512. Mounting seat; 52. Side beam; 53. Radiator cover;

[0026] 531, heat dissipation slot; 54, heat dissipation cavity; 55, first heat sink;

[0027] 6. heat dissipation housing; 61. outlet connector; 62. second heat sink;

[0028] 7. Panel; 8. Sealing strip; 9. Pressure strip. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model through the implementation method. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] One of the implementation methods of the utility model is a constant power color temperature stepless adjustment floodlight, such as Figures 1 to 3 As shown, it includes: a radiator 5, a heat dissipation shell 6, a lamp board 4 and a panel 7.

[0032] The radiator 5 includes a mounting plate 51, the lamp board 4 is arranged on one side of the mounting plate 51, and a mounting seat 512 is arranged on the other side of the mounting plate 51, an inlet connector 511 is arranged in the mounting seat 512, and heat dissipation covers 53 are arranged on both outer sides of the mounting seat 512; the heat dissipation housing 6 is fixed on the mounting seat 512. The heat dissipation housing 6 is also provided with an outlet connector 61, and a power control component is built in the heat dissipation housing 6. Among them, the power control component includes a power conversion power supply module, a main control module and a constant current module; the power conversion module is connected to the main control module and the constant current module, and is used to supply power to the main control module and the constant current module; the main control module is connected to the constant current module, and is used to output a PWM signal; the constant current module is connected to the lamp board 4, and is used to drive each lamp bead of the lamp board 4.

[0033] Among them, the lamp beads on the lamp board 4 include low color temperature lamp beads and high color temperature lamp beads, and the low color temperature lamp beads and the high color temperature lamp beads are cross-arranged to achieve uniform color mixing.

[0034] In this embodiment, the low color temperature lamp beads can reach 1900K; the high color temperature lamp beads can reach 6500K; when the high color temperature lamp beads are fully lit and the low color temperature lamp beads are not lit, the light effect of the color temperature of 6500K is obtained; when the low color temperature lamp beads are fully lit and the high color temperature lamp beads are not lit, the light effect of the color temperature of 1900K is obtained; when the high and low color temperature lamp beads are half-powered, the light effect of the color temperature of 4200K is obtained. Similarly, by controlling the output power of the high and low color temperature lamp beads, any color temperature value between the high and low color temperatures can be obtained to achieve the function of constant power and infinite color temperature adjustment.

[0035] The wiring of the power control component extends out of the heat dissipation housing 6 through the outlet connector 61, and then enters the cavity between the mounting plate 51 and the lamp board 4 through the inlet connector 511, and is connected to the lamp board 4. Among them, both the outlet connector 61 and the inlet connector 511 are waterproof connectors. The above structure can realize the modular installation and disassembly of the power control component while meeting the requirements of waterproof and dustproof, which can not only meet the requirements of heat dissipation, but also facilitate maintenance.

[0036] Specifically, corresponding side beams 52 are respectively provided on both sides of the radiator 5 , and the side beams 52 are arranged on both sides of the lamp board 4 for installing the pressure strips 9 ; the pressure strips 9 are used to fix the panel 7 and the lamp board 4 . A sealing strip 8 is also fixed on the side beams 52 .

[0037] The two ends of the radiator 5 are respectively provided with corresponding adjustment side covers 2 ; a sealing ring 3 is also provided between the radiator 5 and the adjustment side cover 2 to further achieve the sealing of the lamp panel 4 .

[0038] Furthermore, the adjusting side cover 2 is axially connected with the corresponding adjusting bracket 1; the adjusting side cover 2 is provided with a heat dissipation port 23, and the heat dissipation port 23 is communicated with the heat dissipation cavity 54 inside the heat dissipation cover 53, which can further improve the heat dissipation effect.

[0039] Furthermore, a plurality of first heat sinks 55 and a plurality of heat sink slots 531 are provided in the heat dissipation cover 53; the first heat sink 55 is fixedly connected to the mounting plate 51, and a plurality of second heat sinks 62 are provided on the side of the heat dissipation housing 6, which can further improve the heat dissipation effect.

[0040] In another specific embodiment, the adjusting bracket 1 is provided with an adjusting shaft hole 11 and a plurality of positioning shaft holes 12; the adjusting shaft hole 11 is provided with an adjusting shaft 21 for connecting with the adjusting side cover 2; the positioning shaft hole 12 is used to install the positioning shaft 21; the adjusting side cover 2 is fixedly connected with the adjusting bracket 1 through the positioning shaft 22.

[0041] In addition, in this embodiment, the main control module includes a single-chip microcomputer, a crystal oscillator unit and a reset circuit connected to the single-chip microcomputer; the single-chip microcomputer adopts a single-chip microcomputer model M058LDM; the power conversion power supply module includes a power chip model XL1509; the constant current module includes a constant current chip model 5119L, and the constant current chip adjusts the output current to the LED light source according to the PWM signal sent by the single-chip microcomputer to achieve different brightness.

[0042] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A constant power and stepless color temperature adjustable floodlight, characterized in that: include: Radiator, heat dissipation housing and light panel; The radiator comprises a mounting plate, the lamp board is arranged on one side of the mounting plate, and the heat dissipation housing is arranged on the other side of the mounting plate; The mounting plate is also provided with heat dissipation covers at both sides of the heat dissipation housing; The two ends of the radiator are also provided with corresponding adjustment side covers respectively; the adjustment side cover shaft is connected with the corresponding adjustment bracket; The heat dissipation housing is internally provided with a power control component, and the power control component includes a power conversion power supply module, a main control module and a constant current module; The power conversion power supply module is connected to the main control module and the constant current module, and is used to supply power to the main control module and the constant current module; The main control module is connected to the constant current module for outputting a PWM signal; the constant current module is connected to the light board for driving each lamp bead of the light board.

2. A constant power and stepless color temperature adjustable floodlight according to claim 1, characterized in that: The regulating side cover is provided with a heat dissipation port, and the heat dissipation port is communicated with the heat dissipation cavity inside the heat dissipation cover.

3. A constant power and stepless color temperature adjustable floodlight according to claim 2, characterized in that: A plurality of first heat sinks and a plurality of heat sink slots are also provided in the heat sink cover; the first heat sinks are fixedly connected to the mounting plate.

4. A constant power and stepless color temperature adjustable floodlight according to claim 3, characterized in that: A plurality of second heat sinks are also provided on the side of the heat dissipation housing.

5. The constant power and stepless color temperature adjustable floodlight according to claim 1, characterized in that: One or both ends of the heat dissipation housing are also provided with a plurality of outlet connectors; The mounting plate is also provided with a plurality of line inlet connectors.

6. A constant power and stepless color temperature adjustable floodlight according to claim 1, characterized in that: Also includes panels; The two sides of the radiator are also provided with corresponding side beams, which are arranged on both sides of the lamp panel and are used to install the pressure strips; The pressure strip is used to fix the panel.

7. A constant power and stepless color temperature adjustable floodlight according to claim 6, characterized in that: A sealing strip is also fixed on the side beam; A sealing ring is also provided between the radiator and the regulating side cover.

8. The constant power and stepless color temperature adjustable floodlight according to claim 1, characterized in that: The adjusting bracket is provided with an adjusting shaft hole and a plurality of positioning shaft holes; The adjusting shaft hole is provided with an adjusting shaft for connecting with the adjusting side cover; The positioning shaft hole is used to install the positioning shaft; The adjustable side cover is fixedly connected to the adjustable bracket via the positioning shaft.

9. The constant power and stepless color temperature adjustable floodlight according to claim 1, characterized in that: The main control module includes a single-chip microcomputer, a crystal oscillator unit and a reset circuit connected to the single-chip microcomputer; The single chip microcomputer adopts a single chip microcomputer of model M058LDM.

10. A constant power and stepless color temperature adjustable floodlight according to claim 9, characterized in that: The power conversion and power supply module includes a power chip of model XL1509; The constant current module includes a constant current chip of model 5119L.

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