CN220338301U

CN220338301U - Backlight assembly and lamp

Info

Publication number: CN220338301U
Application number: CN202321598795.1U
Authority: CN
Inventors: 谢青波
Original assignee: Shenzhen Aurora Technology Co Ltd
Current assignee: Shenzhen Aurora Technology Co Ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-01-12
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a backlight assembly and a lamp, wherein the backlight assembly comprises a lamp panel, a backlight bead, a lens assembly and a light guide piece; the background lamp beads are arranged on the lamp panel; the device comprises a convex lens and a fixed seat, wherein the fixed seat is provided with a first installation cavity and a second installation cavity which are communicated, the convex lens is fixed in the first installation cavity, and the fixed seat is covered on the periphery of a background lamp bead so that the background lamp bead is opposite to the convex lens; one end of the light guide piece is fixed in the second mounting cavity. According to the utility model, the first mounting cavity and the second mounting cavity are respectively formed at the two ends of the fixing seat, the first mounting cavity and the second mounting cavity are mutually communicated, the second mounting cavity can be just in size to be placed into one end of the light guide piece, which is communicated with the first mounting cavity and the second mounting cavity, the convex lens can be just in place, and the background lamp beads are positioned in the first mounting cavity, so that light collected by the background lamp beads through the convex lens can be all guided into the light guide material, and the light emitting utilization rate of the light source is improved.

Description

Backlight assembly and lamp

Technical Field

The present disclosure relates to lighting devices, and particularly to a backlight assembly and a lamp.

Background

The backlight of the lamp can create various environmental atmospheres and light effects, and can express subtle changes of thought and emotion by utilizing subtle changes of the backlight, and the colorful backlight lamp is also favored by more and more users.

The light guide materials adopted by the backlight of the lamp generally comprise silica gel, PC, optical fiber materials and the like, wherein the light guide performance of the optical fiber materials is best, but the LEDs emit light in a divergent mode, the light emitting angle is 120 degrees, the optical fibers emit light most commonly, the light emitted by the LEDs is linear, and the light emitted by the LEDs is guided into the optical fiber materials from the tangential plane of the optical fiber materials to be limited, so that the light guide members of the optical fiber materials have limited utilization rate of the light emitted by the LEDs.

Therefore, it is necessary to provide a new backlight assembly and lamp to solve the above technical problems.

Disclosure of Invention

The utility model mainly aims to provide a backlight assembly and a lamp, and aims to solve the problem that an optical fiber material light guide piece is limited in utilization rate of LED light emission.

In order to achieve the above objective, the present utility model provides a backlight assembly, which includes a lamp panel, a backlight bead, a lens assembly and a light guide member; the background lamp beads are arranged on the lamp panel; the backlight module comprises a convex lens and a fixed seat, wherein the fixed seat is provided with a first installation cavity and a second installation cavity which are communicated, the convex lens is fixed in the first installation cavity, and the fixed seat is covered on the periphery of the background lamp bead so that the background lamp bead is opposite to the convex lens; one end of the light guide piece is fixed in the second mounting cavity.

In an embodiment, the end surface of the light guide piece extending into the second mounting cavity is tangent to the convex lens; and/or the number of the groups of groups,

the inner wall of the first installation cavity and the inner wall of the second installation cavity are both reflecting surfaces.

In an embodiment, an end of the second installation cavity away from the first installation cavity is gradually widened to form a guiding surface.

In an embodiment, the fixing base has external threads corresponding to the outer side of the second installation cavity.

In an embodiment, the two ends of the light guide member are respectively provided with a lamp panel, a background lamp bead and a lens assembly.

In one embodiment, the backlight assembly comprises a bracket, wherein the bracket is provided with a mounting groove, and the light guide member is clamped into the mounting groove.

In an embodiment, an inner wall of the mounting groove is a reflective surface.

In one embodiment, the light guide is an optical fiber.

In addition, the utility model also provides a lamp, which comprises a radiator, two side covers, a light-emitting component and the backlight component, wherein the radiator is internally provided with a mounting cavity with one side forming a light outlet; the two side covers are arranged on two sides of the radiator; the light-emitting component is arranged in the mounting cavity, and the light-emitting component emits light towards the light-emitting opening; the backlight assembly is arranged in the mounting cavity, and the backlight assembly is arranged on one side of the light emitting assembly, which faces the light outlet.

In an embodiment, the side cover is provided with a mounting hole, the lamp panel is connected with the side cover, and the background lamp beads are positioned in the mounting hole; the fixing seat is in threaded connection with the inner wall of the mounting hole.

According to the technical scheme, the backlight assembly is applied to the lamp, the first mounting cavity and the second mounting cavity are formed at two ends of the fixing seat respectively, the first mounting cavity and the second mounting cavity are communicated with each other, the second mounting cavity can be just in size to be placed in one end, communicated with the first mounting cavity and the second mounting cavity, of the light guide piece, the convex lens can be just in size to be placed in one end, communicated with the second mounting cavity, of the light guide piece, the backlight beads are located in the first mounting cavity, and therefore light collected by the backlight beads through the convex lens can be all led into the light guide material, and the light emitting utilization rate of the light source is improved. The backlight beads usually adopt LED (light-emitting diode) beads, the LEDs emit light in a divergent mode, the convex lenses can collect light emitted by the LED beads into parallel light, the light is more beneficial to being LED into the interior from the end face of the light guide piece, and the light guide of the optical fibers is parallel. The light guide piece is an optical fiber, the light guide performance of the optical fiber material is good, the light emitting of the LED lamp beads can be better utilized, and the backlight brightness is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a backlight assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an outgoing light path of a backlight assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating a backlight assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a lamp according to an embodiment of the present utility model;

fig. 5 is a schematic diagram illustrating disassembly of a lamp according to an embodiment of the utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Lamp set	2	Radiator
1	Backlight assembly	21	Containing cavity
				11	Lamp panel	22	Light outlet
12	Background lamp bead	23	Fixing groove
				13	Lens assembly	3	Side cover
131	Convex lens	31	Mounting hole
				132	Fixing seat	4	Light emitting assembly
1321	First installation cavity	41	PCB (printed circuit board)
				1322	Second safety deviceCavity-filling	42	Main lamp bead
1323	Guide surface	43	Light cup
				14	Light guide	51	Lampshade
15	Support frame	52	Waterproof strip
				151	Mounting groove	53	Fixing strip

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The utility model provides a backlight assembly, which aims to solve the problem that an optical fiber material light guide piece is limited in utilization rate of LED light emission.

As shown in fig. 1 and 2, in an embodiment of the present utility model, the backlight assembly 1 includes a lamp panel 11, a backlight bead 12, a lens assembly 13, and a light guide 14; the background lamp beads 12 are arranged on the lamp panel 11; the backlight module comprises a convex lens 131 and a fixed seat 132, wherein the fixed seat 132 is provided with a first mounting cavity 1321 and a second mounting cavity 1322 which are communicated, the convex lens 131 is fixed in the first mounting cavity 1321, and the fixed seat 132 is covered on the periphery of the backlight bead 12 so that the backlight bead 12 is arranged opposite to the convex lens 131; one end of the light guide 14 is fixed in the second mounting cavity 1322.

In the above embodiment, the backlight assembly 1 is applied to the lamp 100 as shown in fig. 4, two ends of the fixing base 132 respectively form the first mounting cavity 1321 and the second mounting cavity 1322, the first mounting cavity 1321 and the second mounting cavity 1322 are mutually communicated, the second mounting cavity 1322 is just in size to put the convex lens 131 into one end of the light guide 14, where the first mounting cavity 1321 and the second mounting cavity 1322 are communicated, and the backlight bead 12 is located in the first mounting cavity 1321, so that the light collected by the backlight bead 12 through the convex lens 131 can be all led into the light guide material, thereby improving the light utilization rate of the light source.

Referring to fig. 3, the backlight beads 12 generally use LED beads, the LEDs emit light in a divergent manner, and the convex lens 131 can collect the light emitted from the LED beads into parallel light, so that the light is more easily LED into the interior from the end surface of the light guide member 14, and the light guide of the optical fiber is parallel. The light guide member 14 is an optical fiber, so that the light guide performance of the optical fiber material is good, the light emitted by the LED lamp beads can be better utilized, and the backlight brightness is improved.

In an ideal state, the end surface of the light guide 14 extending into the second mounting cavity 1322 is tangent to the convex lens 131; the light emitting surface of the convex lens 131 is adhered to or attached to the light guide 14, so that all the light collected by the convex lens 131 can be guided into the light guide 14. In practical applications, due to dimensional tolerance of the light guide 14 or assembly error of the light guide 14 and the fixing base 132, a gap may exist between the end surface of the light guide 14 and the light emitting surface of the convex lens 131, and the inner wall of the first mounting cavity 1321 and the inner wall of the second mounting cavity 1322 are both set to be reflective surfaces, so that light can be guided out, thereby more effectively utilizing a pipeline and reducing the influence of dimensional tolerance or assembly error on the light utilization rate.

In one embodiment, the end of the second mounting cavity 1322 remote from the first mounting cavity 1321 tapers to form a guide surface 1323. When assembling the light guide 14, the light guide 14 can slide along the guide surface 1323 until inserted into the second mounting cavity 1322, thereby reducing the assembling difficulty.

In one embodiment, the fixing base 132 has external threads corresponding to the outer side of the second mounting cavity 1322. The external screw thread is fixed on external spare part, and when backlight subassembly 1 is applied to in the lamps and lanterns 100, fixing base 132 passes through external screw thread and the side cap 3 threaded connection of lamps and lanterns 100, fixes fixing base 132 on side cap 3. Of course, the external thread rear cover can play a role in adjusting, namely adjusting the screwing-in depth of the fixing seat 132, so as to adjust the insertion depth of the light guide member 14, when the length of the light guide member 14 has small errors, the light guide member 14 can be attached to the light emitting surface of the convex lens 131 by adjusting the mounting depth of the fixing seat 132, and the influence of the length of the light guide member 14 on the light emitting effect is reduced.

In an embodiment, the two ends of the light guide 14 are respectively provided with a light plate 11, a backlight bead 12 and a lens assembly 13. Namely, both ends of the light guide member 14 are limited, the light guide member 14 is fixed by utilizing the concentric shaft principle, the tangent plane of the light guide member 14 is ensured to be parallel to light, and the effect of high light efficiency is achieved without losing the light source. And the light sources are arranged at the two ends of the light guide 14, so that the uniformity of the brightness on the light guide 14 can be improved, and the problem that the brightness of the background light is reduced along with the light transmission distance is avoided.

In one embodiment, the backlight assembly 1 includes a bracket 15, where the bracket 15 has a mounting groove 151, and the light guide 14 is snapped into the mounting groove. The support 15 can support the light guide member 14 to prevent the light guide member 14 from bending and deforming, and can prevent the light guide member 14 from bending and deforming under the action of self gravity when the backlight assembly 1 is applied to the long-sized lamp 100.

Based on the above embodiment, the inner wall of the mounting groove 151 is a reflective surface, and the inner wall of the mounting groove 151 plays a role in reflecting light, so that the utilization rate of light is enhanced, the backlight is brighter, and the atmosphere is stronger.

In addition, the utility model also provides a lamp 100.

As shown in fig. 4 and 5, in an embodiment, the lamp 100 includes a heat sink 2, two side covers 3, a light emitting component 4 and a backlight component 1 as above, and a cavity 21 with a light outlet 22 formed at one side in the heat sink 2; the two side covers 3 are arranged on two sides of the radiator 2; the light-emitting component 4 is arranged in the accommodating cavity 21, and the light-emitting component 4 emits light towards the light-emitting port 22; the backlight assembly 1 is disposed in the cavity 21, and the backlight assembly 1 is disposed on a side of the light emitting assembly 4 facing the light outlet 22.

Since the lamp 100 includes the backlight assembly 1 as described above, the lamp 100 has all the advantages of the backlight assembly 1 described above, which is not described herein.

The backlight assembly 1 is detachably disposed in the cavity 21, and in practical applications, whether to add the backlight assembly 1 may be determined according to whether there is a backlight requirement. That is, when there is no backlight requirement, the lamp 200 does not have the related structures such as the lens assembly 13, the light guide 14, the lamp panel 11, the backlight beads 12, and the like.

The lamp 100 may be a strip lamp, a round lamp, or other lamp 100, and the length, size, and shape of the lamp 100 may be designed according to actual requirements. Fig. 4 and 5 are only examples of the backlight assembly 1 to which the lamp 100 is applied, and the shape of the lamp 100 is not limited in the present application.

In the above embodiment, the light emitting assembly 4 adopts the combination of the conventional PCB board, the light cup 43 and the main lamp bead 42, and the PCB board is attached to the bottom wall of the radiator 2, so as to improve the heat dissipation effect and avoid the influence of the excessive temperature in the cavity 21 on the performance of the internal components. In order to increase the light emitting area, two light emitting components 4 may be disposed in the heat sink 2, and the light cups 43 of the two light emitting components 4 may be of an integral structure or may be spliced by the two light cups 43. Similarly, in order to better ensure the effect of the backlight, the number of backlight modules 1 may be two, and the two backlight modules 1 are disposed on the top wall and the bottom wall of the cavity 21.

In one embodiment, the side cover 3 is provided with a mounting hole 31, the lamp panel 11 is connected with the side cover 3, and the background lamp beads 12 are positioned in the mounting hole 31; the fixing base 132 is screwed with the inner wall of the mounting hole 31. The lamp plate 11 and the lens component 13 are arranged on the left side cover 3 and the right side cover 3, the lamp plate 11 can be accommodated by the semi-arc structure with threads arranged on the side cover 3, the end of the first mounting cavity 1321 of the lens component 13 is deep into the mounting hole 31, the convex lens 131 is contacted with the background lamp bead 12, the background lamp bead 12 is positioned in the first mounting cavity 1321, and the fixing seat 132 can be matched with the side cover 3 to completely cover the background lamp bead 12, so that the phenomenon of light leakage is prevented.

In an embodiment, the lamp 100 further includes a lamp cover 51, and the lamp cover 51 covers the light outlet 22. The lamp shade 51 can play waterproof dirt-proof effect, avoids steam or dust to get into in the appearance chamber 21, causes the damage to the spare part in the appearance chamber 21.

The top wall and the bottom wall of the containing cavity 21 are respectively provided with a fixing groove 23, and the upper edge and the lower edge of the lampshade 51 are clamped into the corresponding fixing grooves 23. The lamp 100 further comprises a waterproof strip 52 and a fixing strip 53, wherein the fixing strip 53 is clamped between the lamp shade 51 and the front wall of the fixing groove 23, and the waterproof strip 52 is clamped between the lamp shade 51 and the rear wall of the fixing groove 23, so that the lamp shade 51 is fixed, and the waterproof and dustproof performance is improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A backlight assembly, the backlight assembly comprising:

a lamp panel;

the background lamp beads are arranged on the lamp panel;

the lens assembly comprises a convex lens and a fixed seat, the fixed seat is provided with a first installation cavity and a second installation cavity which are communicated, the convex lens is fixed in the first installation cavity, and the fixed seat is covered on the periphery of the background lamp bead so that the background lamp bead is opposite to the convex lens;

and one end part of the light guide piece is fixed in the second mounting cavity.

2. The backlight assembly of claim 1, wherein an end surface of the light guide extending into the second mounting cavity is tangential to the convex lens; and/or the number of the groups of groups,

3. The backlight assembly of claim 1, wherein an end of the second mounting cavity remote from the first mounting cavity diverges to form a guide surface.

4. The backlight assembly of claim 1, wherein the fixing base has external threads corresponding to an outer side of the second mounting cavity.

5. The backlight assembly of claim 1, wherein the light guide has a light panel, a backlight bead, and a lens assembly disposed at opposite ends thereof.

6. The backlight assembly of any one of claims 1 to 5, wherein the backlight assembly comprises a bracket having a mounting groove thereon, the light guide being snapped into the mounting groove.

7. The backlight assembly of claim 6, wherein the inner wall of the mounting groove is a reflective surface.

8. The backlight assembly of any one of claims 1-5, wherein the light guide is an optical fiber.

9. A luminaire, characterized in that it comprises:

the radiator is internally provided with an installation cavity with one side forming a light outlet;

the two side covers are arranged on two sides of the radiator;

the light-emitting assembly is arranged in the mounting cavity and emits light towards the light-emitting opening;

the backlight assembly of any one of claims 1 to 8, disposed within the mounting cavity, the backlight assembly disposed on a side of the light emitting assembly facing the light outlet.

10. The lamp of claim 9, wherein the side cover is provided with a mounting hole, the lamp panel is connected with the side cover, and the background lamp beads are positioned in the mounting hole; the fixing seat is in threaded connection with the inner wall of the mounting hole.