WO2013078576A1

WO2013078576A1 - Illuminating lamp with uniform illuminance

Info

Publication number: WO2013078576A1
Application number: PCT/CN2011/002198
Authority: WO
Inventors: 张发伟; 朱桃林; 郑兆勇; 林万炯
Original assignee: 宁波赛尔富电子有限公司
Priority date: 2011-11-30
Filing date: 2011-12-27
Publication date: 2013-06-06
Also published as: CN102418884A

Abstract

An illuminating lamp with uniform illuminance comprises a lamp seat (1), a socket (11), and a light-emitting module. The socket (11) is disposed at an end of the lamp seat (1). The light-emitting module is accommodated in the lamp seat (1) and is electrically connected to the socket (11). The light-emitting module comprises at least two groups of LED light-emitting bodies (5) with inconsistent emergent central line (8) directions and different irradiation intensity. The illuminating lamp avoids the phenomenon that the illumination is not uniform when LED light-emitting bodies with a single emergent central line angle are adopted; a lens does not need to be additionally arranged in a single LED light-emitting body, and a required illumination effect can be achieved by adjusting the angles of emergent central lines of different groups of LED light-emitting bodies according to the actual requirement.

Description

Illumination lamp with uniform illumination

The invention relates to a lighting lamp, in particular to an illumination lamp with uniform illumination. Background technique

As a new type of illumination source, LED has the advantages of energy saving, high luminous efficiency and long service life. However, due to the distance between the beam emitted by the LED source and the object being illuminated, uneven illumination and divergence of light may occur. The problem, especially when the LED light source is off the center line of the illumination area, such as when the LED light source is placed in a position flush with the top of the cabinet, the LED light source is closest to the top of the cabinet, and the illumination light is brighter, LED The light source is farthest from the bottom of the cabinet, and the illumination is dark, which results in uneven illumination of the entire container. It is impossible to obtain a uniform and uniform illumination effect.

In the prior art, in order to improve the defect of uneven illumination of the LED, the Chinese invention patent "an LED lamp head" having the application number CN201110002480.1 provides such an LED lamp head, which comprises an LED lamp tube, an ED ED light source. , an LED holder on which the LED light source is mounted, and a set of lenses in front of the LED light source, performing focusing and emission processing on the light emitted by the LED light source to obtain uniformly distributed output light, wherein the set of lenses includes: a first lens of the LED light source for diffusing light emitted by the LED light source; a second lens located behind the first lens for separately dispersing and focusing light passing through the first lens; And a third lens disposed behind the second lens for again dispersing and focusing light passing through the second lens. The LED lamp head in the above patent uses a set of lenses located in front of the LED light source to process the light emitted by the LED light source, thereby obtaining a uniformly distributed spot. However, the implementation structure of the above patent is complicated and needs to be set in the lamp cap. The three lenses not only need to increase the volume inside the lamp cap, but also increase the manufacturing cost of the lamp cap, and also bring certain difficulties to the assembly and maintenance of the lamp cap; in addition, the illumination range of the lamp cap structure is limited by the inner space of the lamp cap. Limitation, the illumination range is restricted by the angle of light emitted by the lens itself, and the illumination area of the lamp cap cannot be flexibly adjusted as the height of the object to be illuminated increases. Summary of the invention

The technical problem to be solved by the present invention is to provide an illumination lamp having a uniform illumination, a simple installation, and an illumination range which can effectively increase the illumination range, in view of the above-mentioned state of the art.

The technical solution adopted by the present invention to solve the above technical problem is: an illumination lamp with uniform illumination, which is disposed away from the center line of the illumination area, the illumination lamp includes a lamp holder, a socket and a light-emitting module, and the socket is disposed at the Light

- 1 - Confirmation The light-emitting module is disposed in the socket and electrically connected to the socket, wherein: the light-emitting module includes at least two sets of light-emitting center lines having different directions and different irradiation intensity LED illuminator.

The relative positional relationship of the LED illuminants of each group may be variously arranged. Preferably, each of the LED illuminators is alternately arranged at intervals along the longitudinal direction of the socket. Since the direction of the center line of the light emitted by each group of LED illuminators is different, the LED illuminants of each group are alternately arranged, and the light beams between the groups of illuminants can be equalized to obtain a uniform illumination effect.

Alternatively, each of the sets of the LED illuminators is arranged side by side along the longitudinal direction of the socket. That is, each group of LED illuminators is arranged in a row along the length of the lamp holder, and then adjacent LED illuminant groups form a side-by-side arrangement structure corresponding to the front and rear illuminants.

In order to make the structure more compact and convenient for installation and replacement, preferably, the lamp holder is provided with a circuit board electrically connected to the socket, and each group of the LED illuminators is fixedly disposed on the circuit board.

Considering the actual mounting structure of the lamp body, the number of circuit boards may be one piece or multiple pieces. In order to reduce the installation volume and save the assembly space, preferably, the number of the circuit boards is one piece, and each group of the LEDs The illuminants are fixedly disposed on the same circuit board. Therefore, all the LED illuminants can be simultaneously disposed on the same circuit board, and the bases of the two adjacent LED illuminators can be arranged in different directions to achieve a certain angle of the center line of the light exiting between adjacent LED illuminators. The angle is set to form two or more sets of LED illuminators that are inconsistent with the center line of the light.

Further preferably, the number of the circuit boards is equal to the number of the LED illuminators. For the convenience of installation and debugging, each set of the LED illuminators is fixedly disposed on the corresponding circuit board, and is located at The intersections of the light-emitting center lines of the LED illuminators on two adjacent circuit boards have a first angle, and the two adjacent circuit boards intersect at a second angle, the first angle Forming a complementary angle with the second angle. Therefore, according to the actual situation, when the object area to be illuminated is large, a plurality of circuit boards may be sequentially disposed along the circumferential direction of the lamp holder, and each of the circuit boards is provided with a group of LED illuminators, due to the adjacent circuit boards The intersections are at a certain angle, so that the light-emitting center lines disposed between the LED illuminators on each circuit board are also at an angle, so that a large light-emitting area distributed along the circumference of the lamp holder can be formed, satisfying a large area. Lighting requirements.

In order to prevent dust and water, and to improve the appearance, as a preferred embodiment, a lamp cover is further connected to the top of the lamp holder, and the lamp cover and the lamp holder are further provided with a sealing strip at the joint.

In order to facilitate the installation and disassembly, it is further preferred that the two ends of the socket are respectively provided with one end sleeves, and each of the end sleeves is further provided with a fixed mounting seat which is rotatable relative to the end sleeve. The fixed mounting seat can be fixedly disposed on the mounted surface, and the lamp holder is installed by the cooperation of the end sleeve and the corresponding fixed mounting seat, and the lighting direction of the lamp holder is adjusted by the rotation of the end cover relative to the fixed mounting seat.

Compared with the prior art, the invention has the advantages that: a plurality of sets of LED illuminators having different angles of different exit center lines and different illumination intensities are arranged in the socket, and the overlapping combinations between different groups of LED illuminants are not expanded The illumination range also increases the brightness of the illumination, enabling the illumination to be illuminated over a larger area, avoiding a single The phenomenon that the LED illuminant group emits an object when the light illuminating center line angle is uneven; secondly, the light illuminating center line of the LED illuminator is staggered, so that there is no need to add a lens in a single LED illuminating body, the overall structure is simple, and the installation is convenient, and According to actual needs, by adjusting or changing the intersection angle of the light-emitting center lines between different groups of LED illuminants, the illumination in the desired area can be obtained, and the adjustment is more flexible and simple. DRAWINGS

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

2 is an exploded perspective view of an embodiment of the present invention.

Figure 3 is a partial assembly view of an embodiment of the present invention.

Figure 4 is a left side view of the embodiment of the present invention (removing the left end sleeve and the left fixed mount j).

FIG. 5 is a schematic diagram of beam projection of two illuminants according to an embodiment of the present invention.

FIG. 6 is a second schematic diagram of beam projection of two illuminants according to an embodiment of the present invention.

Fig. 7 is a schematic view showing another overall structure of the embodiment of the present invention (different illuminants are mounted on the same circuit board). detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

As shown in FIG. 1 to FIG. 7 , the illumination lamp of the embodiment is disposed away from the center line of the illumination area, and mainly solves the problem that the illumination of the illumination device disposed on the center line of the deviation illumination area is uneven when the object is illuminated, such as a container light. Wait.

The illuminating lamp of the embodiment includes a lamp holder 1 , and a lamp cover 2 is connected to the top of the lamp holder 1 . Various connection structures in the prior art can be used between the lamp cover 2 and the lamp holder 1 , and preferably a card slot structure is used. In order to improve the connection tightness, the lampshade 2 and the lamp holder 1 are further provided with a sealing strip 3 at the joint; the lamp holder 1 is provided with a circuit board 4, and the circuit board 4 is provided with a light-emitting module, and one end of the lamp holder 1 is provided The socket 11 is electrically connected to the circuit board 4, and the socket 11 is capable of externally supplying power to the lighting module. The two ends of the socket 1 are also connected with an end sleeve 6, and the end sleeve 6 is connected with a fixed mounting base 7, which is fixed. The mounting seat 7 can be fixedly coupled to the mounting surface, and the end sleeve 6 can be rotated relative to the fixed mounting seat 7 after being engaged with the fixed mounting seat 7, thereby achieving adjustment of the illumination angle of the illumination lamp.

The lamp holder 1 of the present embodiment has an elongated shape, and the inner cavity of the lamp holder 1 is provided with two bottom plates 12 intersecting at an angle, and each of the bottom plates 12 is arranged with a circuit board 4, which is illuminated by the embodiment. The module includes two sets of LED illuminators 5, which are respectively a first LED illuminator 51 and a second LED illuminator 52. Each circuit board 4 is provided with a set of LED illuminators 5, a base of each LED illuminator 5 and The circuit boards 4 can be fixedly connected by screws 41, each set of LED illuminators 5 is composed of a plurality of LED lights, and the light-emitting center lines 8 of the LED illuminants 5 on the same circuit board 4 are all arranged in the same direction, considering The uniformity of the illumination, the LED lights between the two sets of LED illuminators 5 are arranged at an alternating interval, that is, the direction of the exit center line 8 is different between the two first LED illuminants 51 having the same direction of the exit center line 8 The second LED illuminator 52 of an LED illuminator 51, referring to FIG. 2 and FIG. 3, the distance and the number of alternately spaced between the two sets of LED illuminators 5 can be adapted according to the needs of the actual illumination range. For example, two second LED illuminators 52 may be disposed at intervals of two first LED illuminators 51, or two second LED illuminators 52 may be disposed at intervals of one LED illuminator 51; and, the first LED illuminates The illumination intensity of the body 51 and the second LED illuminator 52 is also different. By superimposing the beams of the two groups of illuminants with different illumination intensities and different exit center lines, a uniform illuminance beam can be obtained on the object to be illuminated.

Therefore, the light-emitting center line 8 between the adjacent LED illuminators 5 has a first angle α, and the adjacent two circuit boards 4 intersect at a second angle β, see FIG. 4, the first angle α And a complementary angle between the second angle β, and the light beam emitted by the first LED illuminator 51 can form a first spot projection A, and the light beam emitted by the second LED illuminator 52 can form a second spot projection B. When the second angle β is decreased, the light-emitting center lines 8 of the two sets of LED illuminators 5 are close to each other, and the overlapping area T of the first spot projection A and the second spot projection B is increased, and the total area that the illumination lamp can illuminate Decrease, see FIG. 5; when the angle of the second angle β increases, the light-emitting center lines 8 of the two sets of LED illuminators 5 are distant from each other, and the overlapping area T of the first spot projection A and the second spot projection B decreases. The total area that the illumination lamp can reach increases, see Fig. 6; therefore, the angle of the second angle β can be adjusted such that the first spot projection Α and the second spot projection B overlap in an appropriate range, and the overlapping area is just right. Enhanced in two The illumination intensity of the edge of the spot projection enables the illuminator to obtain uniform illuminance within the desired illumination area. It is especially suitable for the illumination of cabinets such as containers, display cabinets or display cabinets with large volume, ensuring uniform illumination above and below the cabinet. Sexuality, avoiding the phenomenon that the local illumination is weaker and darker; in addition, in this embodiment, since the LED lamp is used as the LED illuminator 5, the projection area of the spot of each LED illuminator 5 can be controlled by changing the lens exit angle of the LED lamp. The size, which allows you to adjust the illumination of the illuminator and the size of the overall illumination range.

In addition, in order to simplify the structure and reduce the installation volume, two sets of LED illuminators 5 may be simultaneously mounted on the same circuit board 4, that is, only one circuit board 4 is disposed in the socket 1, by changing the first LED illuminator 51. The mounting angles of the bases of the second LED illuminators 52 are such that two sets of LED illuminators 5 in which the illuminating centerlines 8 are inconsistent are disposed alternately spaced on the same circuit board 4, see FIG.

According to actual needs, the number of LED illuminators 5 can also be increased, so that the lamp holder 1 is arranged with three or more sets of LED illuminators 5 in the circumferential direction, and the light-emitting center lines 8 of each group of LED illuminators 5 are oriented in different directions. By setting, it is possible to increase the projected area of the illuminating light, and to obtain continuity and uniformity of illumination, to obtain a better illumination effect, and to effectively avoid illuminating shadows and dark areas.

Claims

Rights request

1. A uniform illumination lamp, which is disposed away from a center line of an illumination area, the illumination lamp comprising a lamp holder (1), a socket (11) and a light emitting module, wherein the socket (11) is disposed on the lamp The light-emitting module is disposed in the lamp holder (1) and electrically connected to the socket (11), and the light-emitting module includes at least two groups. The LED illuminator (5) in which the directions of the light-emitting center lines (8) are not uniform and the irradiation intensity is different.

The illuminating lamp according to claim 1, characterized in that each of the groups of the LED illuminators (5) are alternately arranged at intervals along the longitudinal direction of the socket (1).

The illumination lamp of uniform illumination according to claim 1, characterized in that each of said groups of said LED illuminators (5) are arranged side by side along the longitudinal direction of said socket (1).

4. The uniform illumination lamp according to claim 1, wherein: the lamp holder (1) is provided with a circuit board (4) electrically connected to the socket (11), and each group of the LEDs The illuminant (5) is fixedly disposed on the circuit board (4).

5. The illuminating lamp of uniform illumination according to claim 4, wherein: the number of the circuit boards is one, and each group of the LED illuminants (5) is fixedly disposed on the same circuit board.

6. The uniform illumination lamp according to claim 4, wherein: the number of the circuit boards (4) is equal to the number of groups of the LED illuminants (5), and each set of the LED illuminants ( 5) respectively fixedly disposed on the corresponding circuit board (4), and intersecting between the light-emitting center lines (8) of the LED illuminants (5) located on two adjacent circuit boards (4) At a first angle (α), the two adjacent circuit boards (4) intersect at a second angle (β), the first angle (α) and the second angle (β) Forming complementary angles.

The illumination lamp with uniform illumination according to any one of claims 1 to 6, characterized in that: the top of the lamp holder (1) is further connected with a lamp cover (2), the lamp cover (2) and The lamp holder (1) is also provided with a sealing strip (3) at the joint.

8. The illuminating lamp of the illuminating hook according to claim 7, wherein: the two ends of the socket (1) are respectively provided with one end sleeves (6), and each of the end sleeves (6) is further A fixed mount (7) is provided which is rotatable relative to the end sleeve (6).